WO2012174622A1 - Extrato vegetal obtido de kielmeyera aureovinosa com atividade antibiótica, composto químico isolado, composições compreendendo os mesmos, seus usos e métodos de prevenção e tratamento de infecções bacterianas - Google Patents
Extrato vegetal obtido de kielmeyera aureovinosa com atividade antibiótica, composto químico isolado, composições compreendendo os mesmos, seus usos e métodos de prevenção e tratamento de infecções bacterianas Download PDFInfo
- Publication number
- WO2012174622A1 WO2012174622A1 PCT/BR2012/000190 BR2012000190W WO2012174622A1 WO 2012174622 A1 WO2012174622 A1 WO 2012174622A1 BR 2012000190 W BR2012000190 W BR 2012000190W WO 2012174622 A1 WO2012174622 A1 WO 2012174622A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- plant extract
- compound
- composition according
- compositions
- kielmeyera
- Prior art date
Links
- 0 CCc(cc1)ccc1C1=C(C(*)=C(*)C(*)=C2*C)C2=*C(*)C1 Chemical compound CCc(cc1)ccc1C1=C(C(*)=C(*)C(*)=C2*C)C2=*C(*)C1 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K36/00—Medicinal preparations of undetermined constitution containing material from algae, lichens, fungi or plants, or derivatives thereof, e.g. traditional herbal medicines
- A61K36/18—Magnoliophyta (angiosperms)
- A61K36/185—Magnoliopsida (dicotyledons)
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P31/00—Antiinfectives, i.e. antibiotics, antiseptics, chemotherapeutics
- A61P31/04—Antibacterial agents
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D311/00—Heterocyclic compounds containing six-membered rings having one oxygen atom as the only hetero atom, condensed with other rings
- C07D311/02—Heterocyclic compounds containing six-membered rings having one oxygen atom as the only hetero atom, condensed with other rings ortho- or peri-condensed with carbocyclic rings or ring systems
- C07D311/78—Ring systems having three or more relevant rings
- C07D311/92—Naphthopyrans; Hydrogenated naphthopyrans
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K2236/00—Isolation or extraction methods of medicinal preparations of undetermined constitution containing material from algae, lichens, fungi or plants, or derivatives thereof, e.g. traditional herbal medicine
- A61K2236/30—Extraction of the material
Definitions
- Patent Descriptive Report for: "VEGETABLE EXTRACT OBTAINED FROM KIELMEYERA AUREOVINOSA WITH ANTIBIOTIC ACTIVITY, ISOLATED CHEMICAL COMPOSITION UNDERSTANDING THE SAME, ITS USES AND METHODS OF PREVENTION AND TREATMENT OF INFECTIONS.
- the present invention relates to plant extracts obtained from the plant species Kyelmeiera aureovinosa, from the Clusiaceae Family, native and collected in Brazil, which has marked antibiotic activity.
- the present invention also relates to the chemical compound 5-hydroxy-8,8-dimethyl-6- (iso-propyl) -4-aryl-4H-cyclohexene- [2,3-h] chromen-2-one (amarillin) , isolated from Kyelmeiera aureovinosa plant extract, which also has high antibiotic activity as well as variations of it.
- the present invention further relates to herbal compositions comprising said plant extract of Kyelmeiera aureovinosa.
- the present invention also provides pharmaceutical or veterinary compositions comprising the active ingredient amarilin.
- the present invention further provides for the use of said compositions in the prevention or treatment of bacterial infections.
- the present invention relates to methods for preventing or treating bacterial infections.
- Herbal medicines are complex mixtures of organic substances that can come from any part of a raw or processed plant, including leaves, stems, flowers, roots and seeds.
- the flavonoid group is one of the largest and most widely distributed among the botanical families, encompassing various classes of chemical molecules, having in common a basic structure C6 ⁇ C3-C6, and are classified according to the degree of oxidation of the central piranic nucleus 1 , which can also be linear (such as in chalcones) or fused to a furanic ring (as in auronas).
- a plant-based diet rich in flavonoids is thought to be extremely important for human health as it acts as natural antioxidants, providing protection against cardiovascular disease and certain cancers (DE ICK, PM1997. Medicinal Natural Products - Biosynthetic Approach, John Wiley & Sons Ed., Chichester, England).
- neoflavonoids molecules composed of 15 carbon atoms, grouped according to their molecular structure and origin.
- 4-arylcoumarins and dalbergions are examples of compounds in this class.
- neoflavonoids are known to exhibit antimicrobial, anti-protozoan, cytotoxic, chemopreventive, and type 1 (HIV-1) specific reverse transcriptase inhibitor activity (PATIL, AD, FREYER, AJ, EGGLESTON, DS, HALTIWANGER, R. C., BEAN, M.F., TAYLOR, P.B., CARANFA, MJ, BREEN, AL, BARTUS, H.R., JOHNSONRK, HERTZBERG, RP & WESTLEY, JW 1993.
- flavonoids are widely distributed among botanical families, among which we can highlight the Clusiaceae family, to which the genus Kielmeyera belongs. This family has about 1000 species distributed in thirty genera found in the pantropical zone. In Brazil, there are eighteen genera and about 150 species (SOUZA V., LORENZI H. 2005. Systematic botany: illustrated guide for identifying angiosperm families of Brazilian flora. S ⁇ o Paulo: Instituto Plantarum, p. 348). Endemic Kielmeyera from South America (BENNETT, GJ & LEE, H.-H. (1989). Xanthones from Guttiferae. Phytochemistry, 28, 967-998). Studies with species of this genus have verified the occurrence of some classes of chemical substances, among them the 4-alkylcoumarins, 4-arylcoumarins (neoflavonoids) and xanthones.
- Nosocomial infections are considered to be the main factor associated with morbidity and mortality in nosocomial environments in virtually all continents.
- the bacterial species Staphylococcus aureus has been considered the main etiological agent associated with these infections, which may result in conditions of high morbidity, such as infectious endocarditis and septicemia (SADER, HS; GALES, AC; PFALLER, MA; ZOCCOLI, C ; BARTH, A & JONES, RN Pathogen frequency and resistance patterns in Brazilian hospitals Summary of results from three years of the SENTRY antimicrobial surveillance program Braz J. Infect Dis., 5, 200-214, 1999; ENRIGHT, MC 2003.
- Curr Opin Pharmacol The evolution of a resistant pathogen - the case of MRSA 3: 474-479; FOWLER,.; WANN, ER; JOH, D .; JOHANSSON, S.; FOSTER, TJ & HOOK, M.
- Cellular invasion by Staphylococcus aureus involved fibronectin bridge between bacterial fibronectin-binding MSCRAMMS and host cell beta integrins Eur J. Cell Biol., 79, 672-679, 2000; DIEKEMA DJ, PFALLER MA, SCHMITZ FJ, SMAYEVSKY J, BELL J, JONES RN, BEACH M.
- MRSA Metal-resistant Staphylococcus aureus
- Resistance to methicillin by a microorganism is an indicator of resistance to all beta-lactam antibiotics, including cephalosporins and carbapenemas. Resistant microorganisms often exhibit cross-resistance to aminoglycosides, lincosamines, macrolides, tetracyclines, trimethoprims and sulfonamides (RIBEIRO, Isabel and CASTANHEIRA, Rui. Treatment and prevention of Staphylococcus aureus infections and colonization. In Rev Port Pneumol IX (5): 395- 409. Porto, 2003).
- Major risk factors associated with the development of MRSA infections include hospitalization or recent surgery, long-term hospitalization, dialysis, and intravenous drug application (RIBEIRO, I. CASTANHEIRA, RR. Treatment and prevention of Staphylococcus aureus. Port Pneumol. 5: 395-409, 2003).
- bacteria After contamination, bacteria initially colonize entry sites such as skin, wounds, or interface areas between invasive medical devices and the skin, such as catheters or probes, and thereafter initiate an infectious focus, being carried into the body and may initiate a systemic infection (ENZEL RP, PERL TM: The significance of nasal carriage of Staphylococcus aureus and the incidence of postoperative wound infection J Hosp Infect 31: 13-24, 1995). It is an interesting strategy, therefore, the preventive control of contamination of these sites, through the direct application of topical antimicrobial agents (Ribeiro and Castanheira, 2003).
- CA-MRSA extremely virulent MRSA strains have migrated into the community (called CA-MRSA), causing severe infections in healthy individuals, such as school-aged children, athletes, Military and Prisoners (LINDENMAYER, JM, SCHOENFELD, S., O'GRADY, R. & CARNEY, J. Methicillin-resistant Staphylococcus aureus in a high school wrestling team and the surrounding community.
- Methicillin-resistant Staphylococcus aureus an emerging pathogen Infect Control Hosp Epidemiol., 24, 451-455, 2003; ELLIS , MW, HOSPENTHAL, DR, DOOLEY, DP, GRAY, PJ, MURRAY, CK, 2004. Clin. Infect Dis. Natural history of community-acquired methicillin-resistant Staphylococcus aureus colonization and infection in soldiers .39: 971-979; KAZAKOVA, SV; HAGEMAN, JC; MATAVA, M.; SRINIVASAN, A. ; PHELAN, L. ; GARFINKEL, B. ; BOO,.
- Such strains have been associated with skin and soft tissue infections such as cellulitis and abscesses (HEROLD, BC; IMMERGLUCK, LC; MARANAN, MC; LAUDERDALE, DS; GASKIN, RE; BOYLE-VAVRA, S.; LEITCH, CD & DAUM , RS Community acquired methicillin-resistant Staphylococcus aureus in children with no identified predisposing risk (JAMA, 279, 593-598, 1998).
- cellulitis and abscesses HEROLD, BC; IMMERGLUCK, LC; MARANAN, MC; LAUDERDALE, DS; GASKIN, RE; BOYLE-VAVRA, S.; LEITCH, CD & DAUM , RS Community acquired methicillin-resistant Staphylococcus aureus in children with no identified predisposing risk (JAMA, 279, 593-598, 1998).
- Severe community-acquired pneumonia caused by Panton-Valentine leukocidin-positive Staphylococcus aureus first reported case in the United Kingdom Intensive Care Med., 29, 1399, 2003; VAN DER FLIER, M.; VAN DIJK, NB; FLUIT, AC; FLEER, A. WOLFS, TF & VAN GESTEL JP Fatal pneumonia in an adolescent due to community-acquired methicillin-resistant Staphylococcus aureus positive for Panton-Valentine-leukocidin (Ned. Tijdschr. Geneeskd., 147, 1076-1079, 2003) .
- glycopeptides such as vancomycin and teicoplanin, which can be administered intravenously only, and are considered ototoxic and nephrotoxic as well as expensive.
- studies have already compared the activity of topical preparations prepared with plant extracts as opposed to antimicrobial products recommended in clinical practice for the treatment of MRSA infections. For example, Caelli et al. (2000) observed that when considering two distinct groups of patients initially infected with MRSA, one was subjected to the treatment of preparations with plant extracts of Malaleuca sp.
- the antimicrobial activity of a methanolic methanolic extract obtained from a common South African plant species (Helichrysum pedunculatum) against various pathogenic bacterial species was evaluated.
- the sample had a MIC value of 5000 ⁇ g / mL against an MRSA strain (Aiyegoro OA, Okoh AI Phytochemical Screening and Polyphenolic Antioxidant Activity of Aqueous Crude Leaf Extract of Helichrysum pedunculatum. International Journal of Molecular Sciences. 2009; 10 (11) : 990-5001).
- Kielmeyera aureovinosa plant extracts having antibiotic activity are obtained by extraction with organic solvent.
- Kielmeyera aureovinosa plant extracts having antibiotic activity are extracted with a solvent selected from the group comprising, but not limited to methanol, ethanol, ethyl acetate and hexane.
- the plant extracts of Kielmeyera aureovinosa whose minimum inhibitory concentration (MIC) in broth microdilution test against Staphylococcus aureus is less than or equal to 1 g / mL.
- the plant extracts of Kielmeyera aureovinosa of the present invention are characterized by comprising a concentration greater than 60% of the chemical markers mameisin and isomameisin.
- the minimum inhibitory concentration (MIC) of the amarilin compound in broth microdilution test against Staphylococcus aureus is less than or equal to 1 ⁇ / ⁇ ..
- the herbal compositions comprising plant extracts of Kielmeyera aureovinosa of the present invention are intended for topical administration.
- the pharmaceutical form of herbal compositions comprising plant extracts of Kielmeyera aureovinosa for topical use may be selected from the group comprising, but not limited to emulsion, gel-cream, ointment, cream, gel, soap and paste.
- the herbal compositions comprising plant extracts of Kielmeyera aureovinosa of the present invention are intended for oral administration.
- the dosage form of herbal composition comprising plant extracts aureovinosa Kielmeyera to 'oral use can be selected from the group comprising, but not limited to dragée, capsule, syrup, solution and suspension tablet.
- Another object of the invention is to provide pharmaceutical or veterinary compositions comprising 5-hydroxy-8,8-dimethyl-6- (iso-propyl) -4-aryl-4H-cyclohexene- [2,3-h] chromen compound Isolated 2-one (amarillin) and pharmaceutically acceptable excipients.
- compositions comprising the amarilin compound may be intended for topical administration.
- the pharmaceutical form of the pharmaceutical or veterinary compositions comprising the amarilin compound for topical use may be selected from the group comprising, but not limited to ointment, cream, gel, soap, lotion, emulsion, gel cream and paste.
- compositions comprising the amarilin compound may be intended for oral administration.
- the pharmaceutical form of the pharmaceutical or veterinary compositions comprising the aamariline compound for topical use may be selected from the group comprising, but not limited to, powder, granules, tablets, pills, capsules, solutions, syrups and suspensions.
- compositions comprising the amarilin compound may be intended for parenteral administration. More particularly, it is an object of the present invention to provide compositions as described above for use in preventing or treating bacterial infections.
- Another object of the present invention is a method for preventing or treating bacterial infections using Kielmeyera aureovinosa plant extracts, amarilin compound or a composition comprising them for preparing a medicament for preventing or therapy of bacterial infections.
- Figure 1 presents photographs of the thin layer chromatography (TLC) of the ethanolic extract of Kielmeyera aureovinosa roots under ultraviolet light at wavelengths ⁇ 254 nm and 365 nm, respectively.
- the eluent used was a 93: 7 toluene: ethyl acetate mixture, which showed the presence of the major substance (at 254 and 365 nm) and coumarins (blue bands at the wavelength of 365 - signaled with ⁇ -).
- the black and white schemes * highlight the bands to be highlighted.
- Figure 2 shows a photograph of three CCFs showing the presence of terpenoids (purple bands), flavonoids (yellow bands) and phenols (brown bands) by revelation with sulfuric vanillin, NPPEG and ferric chloride, respectively (which may be
- the eluent used was a mixture of toluene: ethyl acetate at a ratio of 93: 7.
- the black and white schemes highlight the bands to be highlighted.
- Figure 4 shows absorption maxima in (a) ultraviolet absorption spectrum of the chemical marker of the extract. showing maximum absorption values for two wavelengths ( ⁇ max 282 and 335 nm - flagged with i).
- the structure of the isolated substances as chemical markers can also be found in this figure in (b) mameisin and (c) isomameisin.
- (d) the novel chemical structure of the compound 5-hydroxy-8,8-dimethyl-6- (iso-propyl) -4-aryl-4H-cyclohexene- [2,3-h] chromen-2- one, called amarilin, which was isolated from the main marker peak of the herbal extract.
- Figure 6 illustrates assays performed for antimicrobial activity.
- a culture medium plate is shown where the qualitative aspect was evaluated, using the seeded nutritive agar diffusion methodology (Drop-Test).
- the top view shows the tubes used in the minimum inhibitory concentration assay of the EXT 13737 extract when tested against ATCC 33591 multidrug resistant MRSA strain.
- Initial concentration 85C ⁇ g / mL.
- Result obtained for MIC 0.83 g / mL.
- EXT 103764 or aureocycline
- EXT 103764 is a species of the genus not previously described in the literature, harvested under CGEN / MA Special Authorization No. 16/2006, renewed by publication in DOU 15:55, 22 January 2009. According to the rules of the Brazilian Legislation, subsamples of the plant can be found in faithful depositary herbarium (RFA) under number 25756.
- RFA faithful depositary herbarium
- Kielmeyera aureovinosa plants of the Clusiaceae family, are monoecious plants having glabrous, latex, thick yellow latex vegetative structures. Plants of this species also have a sparingly fasciculated subterranean system, robust roots, yellowish, defoliating papyraceous bark surface. Arboretum measuring 6 to 8 meters in height, diameter measuring 12 to 20cm, stem and lateral branches developed with satin-metallic luster, vinous with golden transverse bands, defoliation in transverse spiral papyraceous membranes; slender young, cylindrical to triangular-rounded and striated branches.
- the leaves are whole, alternating spiraled; small, striated, canalicular petiole, 2 to 4 cm long length; obovate to elliptical blade, with acute or coined base, sometimes slightly asymmetrical, obtuse rounded apex, sometimes apiculate, rare acute or emarginated; thin central rib printed on the adaxial face and prominent on the abaxial face; It also has between 15 and 22 secondary ribs on both sides, prominent on both sides; sub-parallel intersecondary ribs and evident cross-linking on both sides; orange marginal rib (in sicco); yellow (in sicco) and ovoid, obloid or spindle-shaped, sparingly distributed segments near the margin.
- Inflorescences are present in hemispherical pauciflorous corimbiform thymes; articulated, striated branches; striated pedicels 1 to 1.5 cm long.
- Pentameric flowers actinomorphs; ovoid flower buds, chalice dialisepalc, ovate sepals, acute-rounded apex, ciliated, uneven, with dimensions of 0, 35x0, 55-0, 5x0, 6-0, 5x0, 7cm; dialipetal corolla, oblong-obovate petals, truncated-rounded apex, ciliated, slightly asymmetrical, with dimensions of 1, 4-2x1-1, 5cm; androcyte polystemone, slender fillets, tablets, glabrous, basifix anthers, rimosas, obloids or obovoids, truncated base and apex 0.1 to 0.15 cm in length; gy
- Plants of the Clusiaceae family are used in folk medicine to treat abdominal disorders, back pain, colds, conjunctivitis, cough, dysmenorrhea, headache, snake bite and scorpion.
- extract 103764 (aureocycline), extracted from the species Kielmeyera aureovinosa, from the Clusiaceae family, showed the presence of coumarins, terpenoids, fatty acids and flavonoids.
- the chemical profile developed by CCF indicates the presence of flavonoids in the ethanolic extract, evidenced by the yellow color revealed by the NPPEG reagent (composed of two NP reagents "Naturstoff Reagenz A", 2-amino-ethyl diphenylboric acid ester and PEG (polyethylene glycol 4080
- NPPEG reagent composed of two NP reagents "Naturstoff Reagenz A", 2-amino-ethyl diphenylboric acid ester and PEG (polyethylene glycol 4080
- Other groups of chemical substances were identified by TLC through their reactions with specific reagents (10% KOH in ethanol and ferric chloride) whose colorations indicated the presence of coumarins (bluish spots) and
- the crude alcoholic extract (resubmitted in DMSO) from the sample of Kielmeyera sp. (aureocycline), the plant extract of the present patent application, had a MIC value of 0.83 g / mL.
- aureocycline the plant extract of the present patent application
- Such activity is, until now, unprecedented, considering a plant extract gross.
- mupirocin is currently widely used in the hospital setting as a major topical antistaphylococcal agent, with an estimated MIC value of 0.5yg / mL (FARIAS, WV, SADER, .HS, LEME, I.L., PIGNATARI, AC Rev. Assoe Med.
- the plant extract of the present invention demonstrated low in vitro cytotoxic activity in mammalian eukaryotic cell cultures (hamster ovary cells - CHO), with an extract concentration of 12 ⁇ g / mL having a cell protection level of 73% on average. .
- mammalian eukaryotic cell cultures hamster ovary cells - CHO
- independent cytotoxicity tests conducted in vitro on human fibroblasts and murine fibroblasts (3T3 strain) showed cytotoxic concentrations in the order of 11 ⁇ g / mL for 80% protection.
- the minimum inhibitory concentration presented by the plant extract of the present invention is in an order of magnitude below these cytotoxic concentrations.
- the expected high therapeutic index makes the plant extract of the present invention usable for the development of commercial herbal products, as cytotoxicity is an important limiting factor in antimicrobial development.
- the present invention proposes to assist in the growing demand for active products against pathogenic microorganisms.
- the present invention relates to a plant extract obtained from Kielmeyera aureovinosa which has antibiotic activity. This extract was named aureocycline.
- the plant extract may be obtained from any part of the Kielmeyera aureovinosa plant by any organic solvent extraction method.
- the plant extract of the present invention is obtained from the roots of the Kielmeyera aureovinosa plant.
- Methods that can be used to obtain Kielmeyera aureovinosa plant extract having antibiotic activity include, but are not limited to, cold methods such as turbolization, maceration and simple or fractional percolation.
- hot extraction methods may be used in open systems such as infusion, turbolization and decoction, but not limited to them. It is also possible to obtain the plant extract "the present invention by hot extraction methods in closed systems, such as extraction under reflux and solvent extraction using heating.
- the extraction method used in the present invention consists of a combination of two or more aforementioned methods. More preferably, the extraction method used in the present invention comprises maceration and cold solvent extraction.
- the extract may be prepared from extractor-dried root dry powder, in which sufficient volume of solvent is added for homogenization of the mixture and complete immersion in the solvent. The mixture kept in the extrotor for a period of 10 to 50 hours, then filtered and rotary evaporated under low pressure.
- the plant extract may be obtained by any of the above methods using an organic solvent selected from the group comprising, but not limited to oxygenated solvents, hydrocarbon solvents and halogenated or aromatic solvents.
- oxygenated solvents may be products such as ketones, glycol ethers and alcohol
- hydrocarbon solvents may be aromatic and aliphatic hydrocarbons, comprising, but not limited to, for example hexane, cyclohexane, toluene, benzene and derivatives. of the same.
- Halogenated solvents may be derived from any hydrocarbon solvent that has undergone a halogenation process, comprising, but not limited to, aryl halides, alkyl halides and cycloalkyl halides.
- the plant extract of the present invention has minimal inhibitory concentration (MIC) in broth microdilution test against Staphylococcus aureus less than or equal to 1 ⁇ g / mL.
- the plant extract of the present invention may be characterized chemically characterized in that it comprises mainly the compounds mameisine and isomameisine.
- the concentration of the chemical markers mameisine and isomameisine is greater than 60% in the plant extracts of the present invention.
- the present invention relates to a chemical compound isolated from the aureocycline extract.
- the compound of the present invention has a molecular structure according to Formula I below:
- R1 is selected from the group comprising carbon or a heteroatom selected from the group comprising oxygen, nitrogen and sulfur;
- R 2, R 3, R 4, R 5, R 6 and R 7 are independently selected from the group comprising optionally substituted hydrogen, cyclic or open, aromatic or aliphatic alkyl, optionally substituted cyclic or open, aromatic or aliphatic alkenyl, optionally aromatic or aliphatic substituted, optionally substituted aryl, optionally substituted cyclic or open haloalkyl, oxygen, sulfur, optionally substituted amine, hydroxyl, cyclic or aliphatic alkyloxy, optionally substituted aryloxy, nitro, cyano, optionally substituted sulfonyl, carboxylic acid and amide; and
- R 6 and R 7 may form an optionally substituted aliphatic or aromatic cycle. More particularly, the compound of the present invention is 5-hydroxy-8,8-dimethyl-6- (iso-propyl) -4-aryl-4H-cyclohexene- [2,3-h] chromen-2-one (amarillin ) of formula I:
- the chemical compound amarilin is isolated from the aaureocycline extract and, like it, has antibiotic activity. More particularly, the antibiotic activity of the amarilin compound has minimal inhibitory concentration (MIC) in broth microdilution test against Staphylococcus aureus less than or equal to 1 pg / mL.
- MIC inhibitory concentration
- the present invention relates to phytotherapeutic compositions comprising plant extracts of Kielmeyera aureovinosa and pharmaceutically acceptable excipients.
- the term "pharmaceutically acceptable” means a non-toxic, inert solid, semi-solid liquid excipient, diluent, auxiliary formulation of any kind, or simply a sterile aqueous medium such as saline.
- Examples of materials that may serve as pharmaceutically acceptable carriers are sugars such as lactose, glucose and sucrose, starches such as cornstarch and potato starch, cellulose and derivatives thereof such as sodium carboxymethylcellulose, ethyl cellulose and cellulose acetate, cyclodextrin; oils such as peanut oil, cottonseed oil, sunflower oil, sesame oil, olive oil, corn oil and soybean oil; glycols such as propylene glycol, polyols such as glycerin glycol, sorbitol, mannitol and polyethylene; esters, such as ethyl laurate, ethyl oleate, agar; buffering agents such as aluminum hydroxide and magnesium hydroxide; alginic acid; pyrogen free water; isotonic saline, Ringer's solution; ethyl alcohol and phosphate buffer solutions as well as other compatible non-toxic substances used in pharmaceutical formulations.
- sugars such as lactose, glucose and sucrose
- the herbal compositions comprising plant extracts of Kielmeyera aureovinosa of the present invention are intended for topical administration.
- the pharmaceutical form of the herbal compositions. comprising plant extracts of Kielmeyera aureovinosa for topical use may be selected from the group comprising, but not limited to emulsion, gel-cream, ointment, cream, gel, soap and paste.
- the herbal compositions comprising plant extracts of Kielmeyera aureovinosa of the present invention are intended for oral administration.
- the pharmaceutical form of herbal compositions comprising plant extracts of Kielmeyera aureovinosa for oral use may be selected from the group comprising, but not limited to, dragee, capsule, syrup, suspension solution and tablet.
- compositions comprising 5-hydroxy-8,8-dimethyl-6- (iso-propyl) -4-aryl-4H-cyclohexene- [2,3-h] chromen-2-one compound.
- compositions comprising the amarilin compound may be intended for topical administration.
- the pharmaceutical form of the pharmaceutical or veterinary compositions comprising the amarilin compound for topical use may be selected from the group comprising, but not limited to ointment, cream, gel, soap, lotion, emulsion, gel cream and paste.
- compositions or Veterinary medicinal products comprising the amarilin compound may be intended for oral administration.
- the pharmaceutical form of the pharmaceutical or veterinary compositions comprising the amarylline compound for topical use may be selected from the group comprising, but not limited to, powder, granules, tablets, drags, capsules, solutions, syrups and suspensions.
- compositions comprising the amarilin compound may be intended for parenteral administration.
- compositions of the present invention may comprise any type of excipient used in the manufacture of medicaments in any of the above mentioned pharmaceutical forms, such as absorbents, diluents, binders, disintegrants, lubricants, glidants, plasticizers, coating agents, matrix forming agents. controlled release solvents and co-solvents, wetting agents, emulsifying agents, surfactants, consistency donating agent, tonicity agents, wetting agents, airborne release agents, alkalizing or acidifying agents, preservatives, antioxidants, bactericides, bacteriostats, chelating, coloring and sweetening agents.
- excipient used in the manufacture of medicaments in any of the above mentioned pharmaceutical forms
- absorbents such as absorbents, diluents, binders, disintegrants, lubricants, glidants, plasticizers, coating agents, matrix forming agents.
- controlled release solvents and co-solvents wetting agents, emulsifying agents, surfactants, consistency donating
- Suitable absorbers for the compositions of the present invention may be any substance added to absorb water present in the extracts or to fix certain volatile compounds, such as essences.
- Non-limiting examples of such excipients are calcium phosphate, kaolin, magnesium carbonate, bentonite and talc.
- compositions of the present invention may comprise, as a diluent, any inert product added to the formula to enable tablets or capsules to be filled with adequate volumes and to provide flow and compression properties necessary for production, for example, but not limited to. lactose, tribasic calcium phosphate, starch, mannitol, calcium sulfate, microcrystalline cellulose (Microcel ® , Avicel ® ), dibasic calcium phosphate (Encompress ® , Ditab ® ), magnesium oxide, magnesium carbonate, talc, kaolin, carbonate calcium, dextrose, fructose, lactose, aspartame, cellulose, maltose, mannitol, guar gum, sorbitol, starch and sucrose.
- lactose tribasic calcium phosphate
- starch mannitol
- mannitol calcium sulfate
- microcrystalline cellulose Microcel ® , Avicel ®
- Suitable binder substances for the compositions of the present invention may be agents used to promote particle adhesion during granulation and compression of solid dosage forms, they may also be used in the compositions of the present invention, for example carbopol, povidone, xanthan gum, gum arabic, alginic acid, compressible sugar, CMC-Na, ethylcellulose, gelatin, methylcellulose, povidone (PVP), starch, pregelatinized starch and liquid glucose in solution, dispersion or powder form.
- carbopol povidone
- xanthan gum gum arabic
- alginic acid compressible sugar
- CMC-Na ethylcellulose
- gelatin methylcellulose
- povidone (PVP) povidone
- Suitable disintegrants or disintegrants for the compositions of the present invention may be any component employed to accelerate disintegration and / or dissolution of the pharmaceutical form in biological fluids, for example alginic acid, starch, sodium alginate, CMC-Na, microcrystalline cellulose, croscarmellose sodium (Ac-Di-Sol ® ), starch sodium glycolate (Explotab ® ) and crospovidone (Kollidon CL ® ).
- Suitable lubricants for the compositions of the present invention may be, for example, magnesium stearate, calcium stearate, stearic acid, talc and hydrogenated vegetable oil (eg Lubritab ® ).
- Suitable glidants for the compositions of the present invention may be, for example, colloidal silica (Aerosil 200 ® ) and talc.
- Plasticizers suitable for the compositions of the present invention may be used in conjunction with polymers to modify the transition temperature of phase and facilitate the coalescence of films formed on granules, tablets or pellets.
- Nonlimiting examples of such agents are glycerine, triethylcitrate, dibutylphthalate, silicone and PPG.
- Coating agents employed to coat compositions of the present invention in the form of tablets, granules, capsules or pellets may be, for example, cellulose acetophthalate, ethylcellulose, gellan gum, maltodextrin, methacrylates, methylcellulose, microcrystalline cellulose, shellac, gum carrageenan, waxes, shellacs, gelatin, cellulose derivatives (methyl or ethylcellulose, cellulose acetophthalate, hydroxypropyl methylcellulose, cellulose acetate), copolymers of acrylic and methacrylic esters (Eudragit types L100, RS 30D, RS PM, S100, among others), polyvinyl alcohol (PVA) and polyvinyl acetate.
- PVA polyvinyl alcohol
- Controlled release matrix forming agents possibly employed in the compositions of the present invention for the purpose of obtaining sustained and / or controlled release of the active ingredient (s) may be HPMC, CMC-Na, xanthan gum, Carbopol ®. , various types of Eudragit ® , agar, polyoxidoethylene derivatives (PEO's), cyclodextrin, nanospheres and nanoparticles of any nature.
- Solvents and co-solvents such as alcohol, corn oil, cottonseed oil, glycerin, isopropyl alcohol, mineral oil, oleic acid, peanut oil, purified water and water for injection, among others, may also be used in the compositions of the present invention. invention.
- Suitable wetting agents for the compositions of the present invention may be any substance added for the purpose of decreasing surface tension at the solid / liquid interface, for example sodium lauryl sulfate (LSS), sodium docusate and polysorbates 20, 60, 80 (Tween ( 20, 60, 80).
- LSS lauryl sulfate
- Tween 20, 60, 80.
- Suitable emulsifying agents for the compositions of the present invention may be, for example, glyceryl monostearate, cetyl alcohol and gelatin and auxiliaries such as CMC-Na, MC, alginate and pectin.
- Surfactants such as benzalkonium chloride, nonoxynol 10, octoxynol 9, polysorbate 80 and sodium lauryl sulfate are also suitable for the compositions of the present invention.
- Consistency donors suitable for the compositions of the present invention may be any substance used to increase the consistency of ointments, for example cetyl alcohol, white wax, yellow wax, stearyl alcohol, paraffin, microcrystalline wax and cetyl ester wax.
- Suitable tonicity agents for the compositions of the present invention may be any substance used to obtain solutions with osmotic characteristics similar to those of biological fluids to be administered by ocular, nasal, parenteral routes such as NaCl (0.9%), mannitol (5). , 07%) and dextrose (5.51%).
- Suitable humectants for the compositions of the present invention may be glycerine, propylene glycol and sorbitol.
- Suitable lifting agents for the compositions of the present invention may be any liquid used as a facilitating agent in the process of reducing drug particles during the preparation of emulsions, oily bases, among others, for example mineral oil (liquid petroleum jelly), glycerin, propylene glycol , PEG 400, cottonseed oil, castor oil and Polysorbate 80 (Tween ® 80).
- Air expelling agents suitable for the compositions of the present invention may be employed to expel air from hermetically sealed containers or fluid formulations to increase stability, for example nitrogen (N 2 ) and carbon dioxide (CO 2 ).
- Alkalizing or acidifying agents such as citric acid, ammonia solution, acetic acid, carbonate ammonium, fumaric acid, diethanolamine, hydrochloric acid (HCl), monoethanolamine, tartaric acid, potassium hydroxide (KOH), boric acid, sodium hydroxide (NaOH), sodium bicarbonate, sodium borate and triethanolamine are also suitable for the compositions. of the present invention.
- Preservatives that may be used in the compositions of the present invention are, for example, antifungals such as benzoic acid, sodium benzoate, butylparaben, methylparaben (Nipagin ® ), propylparaben (Nipasol ® ), ethylparaben, sodium propionate, and antibacterials such as chloride.
- antifungals such as benzoic acid, sodium benzoate, butylparaben, methylparaben (Nipagin ® ), propylparaben (Nipasol ® ), ethylparaben, sodium propionate, and antibacterials such as chloride.
- antifungals such as benzoic acid, sodium benzoate, butylparaben, methylparaben (Nipagin ® ), propylparaben (Nipasol ® ), ethylparaben, sodium propionate
- antibacterials such as chloride.
- Suitable antioxidant agents for the compositions of the present invention may be selected from the group comprising butylhydroxyanisol (BHA), butylhydroxytoluene (BHT), ⁇ -tocopherol, ascorbic acid, ascorbyl palmitate, sodium metabisulfite, ethylenediamine tetraacetic acid (EDTA), citric acid, cysteine, glutathione vitamin C, sodium metabisulphite, cysteine and sodium thiosulphate.
- BHA butylhydroxyanisol
- BHT butylhydroxytoluene
- ⁇ -tocopherol ascorbic acid
- ascorbyl palmitate sodium metabisulfite
- EDTA ethylenediamine tetraacetic acid
- citric acid cysteine
- glutathione vitamin C sodium metabisulphite
- cysteine and sodium thiosulphate sodium metabisulphite
- compositions of the present invention may further comprise, as buffering agents, citrate buffer, buffer phosphate and borate buffer.
- buffering agents citrate buffer, buffer phosphate and borate buffer.
- flavorings and flavorings can be used, for example, vanilla, menthol, cinnamon oil, anise oil and cocoa.
- Sweeteners may be, for example, aspartame, dextrose (glucose), mannitol, sorbitol, saccharin, sodium cyclamate, sugar, potassium acesulfame, sucralose and stevioside.
- compositions of the present invention may further comprise excipients such as bactericides, bacteriostats, antioxidants, preservatives, buffers, stabilizers, pH adjusters, osmolarity adjusters, antifoam and surfactants, and residues of antigen inactivating or fractionating agents, growth media and solvents commonly used in the production of medicines.
- excipients such as bactericides, bacteriostats, antioxidants, preservatives, buffers, stabilizers, pH adjusters, osmolarity adjusters, antifoam and surfactants, and residues of antigen inactivating or fractionating agents, growth media and solvents commonly used in the production of medicines. Examples of these types of components can be found in The Handbook of Pharmaceutical Excipients, (RAYMOND C.-ROWE, Publisher The Pharmaceutical Press).
- compositions described in the present invention are available. The particular mode selected will depend upon the particular active ingredient selected, the dosage required for therapeutic efficacy and the patient to whom the composition will be administered.
- herbal remedies Pharmaceutical and veterinary medicinal products as described above are provided for use in the prevention or treatment of bacterial infections.
- Kielmeyera aureovinosa and the isolated amarilin compound thereof is another aspect of the present invention the use of compositions comprising the extract or the isolated compound for the prevention or treatment of bacterial infections in animals.
- Still another aspect of the present invention is methods of preventing or treating bacterial infections in animals, more particularly in humans, using the aureocycline extract and the amarilin compound as well as compositions comprising them.
- the methods of the present invention can generally be practiced using any mode of administration.
- biologically acceptable such as oral, rectal, sublingual, topical, nasal, transdermal, inhalation, or parenteral routes.
- parenteral includes subcutaneous, intravenous, epidural, irrigation, intramuscular, release, or infusion pumps.
- topical, oral, parenteral, rectal, ocular and inhalation routes are preferred for administration of the compositions claimed herein.
- Example 1 Process for obtaining and preparing Klelmeyera aureovinosa extract.
- the extract was prepared from 75g of dry root powder, packed in an extractor where 750mL of 96 ° ethanol is added, ensuring homogenization of the mixture and complete immersion in the liquid, thus remaining for 8h, when the first change is made. of solvents, and then another 16h until a 24h cycle is complete. This extract is then concentrated in a rotary evaporator at low pressure at a temperature of 50 to 70 ° C to give approximately 6g of extract (8% yield).
- the plant extract is yellow, soluble in ethanol and has a pH between 6.0 and 7.0.
- the chromatographic profile of Kielmeyera aureovinosa extract was analyzed by high performance liquid chromatography (HPLC) technique.
- HPLC high performance liquid chromatography
- the analysis method included isocratic mobile phase (63% acetonitrile: 37% 0.1% phosphoric acid acidified water), sample concentration was 1.0 mg / mL in the mobile phase, the column used was C18 ACE, with dimensions of 250mm X 4.6mm, 5 ⁇ , the running time was 60 minutes. The major peak with retention time of 50 minutes was considered as a chemical marker of the extract ( Figure 3).
- Example 5 Mass spectrum of the chemical marker isolated from the ethanolic extract of Klelmeyera sp.
- EXT 103764 samples were dissolved in 80:20 H20 / ACN to approximately 2 mg / mL and then diluted in water to 0.1 mg / mL. This was identified as a mixture of mameisine and isomameisine, two isomers, whose structures are shown in Figures 4B and 4C, respectively.
- the quantitative evaluation of antibacterial activity was performed by the broth microdilution methodology to determine the minimum inhibitory concentration (MIC), according to the Clinical and Laboratory Standards Institute (CLSI, 2006) manual. From the ethanolic extract at 10mg / mL concentration, resuspended in DMSO, serial dilutions (1: 2 ratio) were made in sterile microtiter plates of 12x8 well geometry. Then, in each well was added 10 ⁇ L of bacterial suspension containing about 7x10 6 cells / mL, prepared from recent growth of MRSA strain ATCC 33591 on nutritive agar.
- MIC minimum inhibitory concentration
- the plates were developed by adding 25 ⁇ l of 0.01% rezazurin in each well, followed by incubation at 36 ° C for 30min.
- the direct visualization of the plaque showed that there was inhibition of bacterial growth up to the concentration of 0.83 g / mL, being considered the MIC of the crude extract for the referred MRSA strain.
- the experiments were performed in quadruplicate at different periods.
- TLC molten Tryptcasein Soya Agar
- Example 8 Evaluation of antibiotic activity against species M. fort itvaa ATCC 6841, M. massiliense CRM0019 and CRM 0270, M. abscessus ATCC 19977 and M. smegmatls INCQS 061.
- the strains used were standardized and derived from clinically significant specimens, presenting a high degree of multidrug resistance.
- a strain of M. boyis INCQS 062 was also included, as this species is recommended, according to the technical standards of the National Health Surveillance Agency (Anvisa), for the evaluation of efficacy of hospital disinfectant products.
- Example 9 Toxicological tests of aureocycline extract a) Acute dermal irritation to aureocycline in rabbits
- the study plan was based on the Guideline OECD 404 and aimed to evaluate the adverse effects, reversible or not, resulting from acute dermal exposure to aureocycline in rabbits.
- the method consisted of topically dermal application of the test substance to female Oryctolagus cuniculus, treated with a concentration of 80 g / mL of the test substance.
- test substance was applied in the proportion of 0.5mL / area treated with appropriate syringe and spatula in a quadrant of approximately 6cm 2 of the previously trichotomized dermis to a group of three test systems.
- the application site was preserved with dressing for 4 hours.
- An area equivalent to that of the test substance application was left intact on the opposite antigen to serve as a control.
- test systems were evaluated for signs of erythema, eschar, and edema 60 minutes, 24 hours, 48 hours, and 72 hours after dressing removal. From the 24-hour evaluation, all test systems showed mild (barely noticeable) erythema with reddened skin throughout the application area. Once a sign of irritation was detected due to the application of the test substance, the assay was extended for 14 days. Thus, it is noted that redness persisted for 10 days after administration of the test substance.
- Discreet peeling of the treated skin was also detected from day 5 and extended throughout the observation period. Throughout the period of exposure to the test substance and observation of the test systems, no visible sign of edema was detected in the treated area compared to the control area.
- Table 2 Formation of erythema in the aureocycline-treated group test systems.
- test substance was applied, with graduated syringe, the test substance in the conjunctival sac of the eye. right, after the smooth removal of the lower eyelid.
- the collateral (left) eye was used as a negative control.
- the residue of the applied test substance was carefully removed with the aid of gauze soaked in deionized water.
- Each test system was evaluated separately for the presence of corneal, iris, and eyelid conjunctival lesions, as well as other severe local and systemic changes.
- the eyes were examined after 1, 24, 48 and 72 hours after test substance administration and daily during the observation period (6 days). To aid in the assessment of eye reactions, fluorescein eye drops were used at 24, 48 and 72 hours.
- the assessment of ocular reactions was based on the Draize scale, which describes the gradations attributed to ocular reactions, such as: opacity, corneal area involved, ulceris, hyperemia, chemosis and secretion.
- the study aimed to evaluate the toxic effects of acute dermal exposure to aureocycline in rats. This trial was based on the Guideline OECD 402 and was conducted according to study plan 42011.
- the method consisted of topically dermal application of the test substance to a group of male test systems evaluated only at the highest concentration (250 g / mL).
- a control group received only the placebo of the test substance (Placebo aureocycline).
- the application site was preserved with a bandage for approximately 24 hours. Body weight and water and feed intake of the test systems were recorded.
- test systems were euthanized and macroscopically examined. Acute administration of the test substance at all concentrations evaluated, as well as of the Placebo aureocycline in the treated and control group test systems did not induce changes in clinical evaluations, body weight and feed and water consumption that could be related to toxicity or lethality.
- Table 3 Mean body weight (g) in aureocycline-treated and control groups.
- Table 4 Average weekly feed intake (g) per test system of control and aureocycline treated groups.
- Table 5 Average weekly water consumption (mL) per test system of control and aureocycline treated groups.
- Table 6 Body weight (g) of test systems of control and aureocycline treated groups.
- 3T3 murine fibroblasts were seeded on two plates 96 wells. One of these plates was used to provide the cytotoxicity curve of the control substance Duodecyl Sodium Sulphate (SDS), and the other provided the first cytotoxicity profile of this cell line at the target substance concentrations used. This first profile provided the range finder where the IC50 can be determined, which is set at a second time (IC 5 the finder).
- SDS Duodecyl Sodium Sulphate
- Phase C (*) (lmg / ml of standard extract comprises 60% in marker molecules)
Landscapes
- Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Natural Medicines & Medicinal Plants (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- Veterinary Medicine (AREA)
- Public Health (AREA)
- Medicinal Chemistry (AREA)
- General Health & Medical Sciences (AREA)
- Pharmacology & Pharmacy (AREA)
- Biotechnology (AREA)
- Botany (AREA)
- Epidemiology (AREA)
- Mycology (AREA)
- Microbiology (AREA)
- Engineering & Computer Science (AREA)
- Alternative & Traditional Medicine (AREA)
- Medical Informatics (AREA)
- Oncology (AREA)
- Communicable Diseases (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
- Medicines Containing Plant Substances (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BR112013033102A BR112013033102A2 (pt) | 2011-06-22 | 2012-06-25 | extrato vegetal obtido de kielmeyera aureovinosa com atividade antibiótica, composto químico isolado, composições compreendendo os mesmos, seus usos e métodos de prevenção ou tratamento de infecções bacterianas |
EP12802772.9A EP2735311A4 (en) | 2011-06-22 | 2012-06-25 | PLANT EXTRACT FROM KIELMEYERA AUREOVINOSA WITH ANTIBIOTIC EFFECT, INSULATED CHEMICAL COMPOUND, COMPOSITIONS THEREOF, USES THEREOF, AND METHOD FOR THE PREVENTION AND TREATMENT OF BACTERIAL INFECTIONS |
CA2869331A CA2869331A1 (en) | 2011-06-22 | 2012-06-25 | Plant extract obtained from kielmeyera aureovinosa which has antibiotic activity, isolated chemical compound, compositions comprising same, uses thereof and methods for preventingand treating bacterial infections |
US14/127,870 US20150335691A1 (en) | 2011-06-22 | 2012-06-25 | Plant extract obtained from kielmeyera aureovinosa which has antibiotic activity, isolated chemical compound, compositions comprising same, uses thereof and methods for preventing and treating bacterial infections |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US201161500077P | 2011-06-22 | 2011-06-22 | |
US61/500,077 | 2011-06-22 |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2012174622A1 true WO2012174622A1 (pt) | 2012-12-27 |
WO2012174622A8 WO2012174622A8 (pt) | 2014-01-09 |
Family
ID=47421933
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/BR2012/000190 WO2012174622A1 (pt) | 2011-06-22 | 2012-06-25 | Extrato vegetal obtido de kielmeyera aureovinosa com atividade antibiótica, composto químico isolado, composições compreendendo os mesmos, seus usos e métodos de prevenção e tratamento de infecções bacterianas |
Country Status (5)
Country | Link |
---|---|
US (1) | US20150335691A1 (pt) |
EP (1) | EP2735311A4 (pt) |
BR (1) | BR112013033102A2 (pt) |
CA (1) | CA2869331A1 (pt) |
WO (1) | WO2012174622A1 (pt) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112273385B (zh) * | 2020-11-25 | 2021-07-23 | 宿迁市产品质量监督检验所 | 没食子酸辛酯与丙烯醛的加合产物在制备抑菌剂中的应用 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20060115555A1 (en) * | 2004-12-01 | 2006-06-01 | Foulger Sidney W | Nutritional supplements containing xanthone extracts |
US20060115556A1 (en) * | 2004-12-01 | 2006-06-01 | Foulger Sidney W | Nutritional supplement drink containing xanthone extracts |
-
2012
- 2012-06-25 WO PCT/BR2012/000190 patent/WO2012174622A1/pt active Application Filing
- 2012-06-25 EP EP12802772.9A patent/EP2735311A4/en not_active Withdrawn
- 2012-06-25 US US14/127,870 patent/US20150335691A1/en not_active Abandoned
- 2012-06-25 CA CA2869331A patent/CA2869331A1/en not_active Abandoned
- 2012-06-25 BR BR112013033102A patent/BR112013033102A2/pt not_active IP Right Cessation
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20060115555A1 (en) * | 2004-12-01 | 2006-06-01 | Foulger Sidney W | Nutritional supplements containing xanthone extracts |
US20060115556A1 (en) * | 2004-12-01 | 2006-06-01 | Foulger Sidney W | Nutritional supplement drink containing xanthone extracts |
Non-Patent Citations (6)
Title |
---|
COQUEIRO ET AL.: "Antimicrobial activity of Kielmeyera variabilis.", PLANTA MEDICA 12, 2010, XP008172244 * |
NAGEM ET AL.: "Xanthones and phenylcoumarins from Kielmeyera pumila.", PHYTOCHEMISTRY, vol. 27, no. 9, 1988, pages 2961 - 2962, XP026620915 * |
NOGUEIRA ET AL.: "Chemical constituents from Kielmeyera rugosa Choisy (Clusiaceae).", BIOCHEMICAL SYSTEMATICS AND ECOLOGY, vol. 36, 2009, pages 921 - 924, XP025860900 * |
PINHEIRO ET AL.: "Antibacterial xanthones from Kielmeyera variabilis Mart. (Clusiaceae).", MEM6RIAS DO INSTITUTO OSWALDO CRUZ, vol. 98, no. 4, 2003, pages 549 - 552, XP055141310 * |
See also references of EP2735311A4 * |
TOLEDO ET AL.: "Antimicrobial and cytotoxic activities of medicinal plants of the Brazilian cerrado, using Brazilian cachaça as extractor liquid.", JOURNAL OF ETHNOPHARMACOLOGY, vol. 133, no. 2, 2011, pages 420 - 425, XP027596118 * |
Also Published As
Publication number | Publication date |
---|---|
BR112013033102A2 (pt) | 2017-01-24 |
CA2869331A1 (en) | 2012-12-27 |
US20150335691A1 (en) | 2015-11-26 |
EP2735311A4 (en) | 2015-01-14 |
WO2012174622A8 (pt) | 2014-01-09 |
EP2735311A1 (en) | 2014-05-28 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
Musa et al. | Phytochemical, antibacterial and toxicity studies of the aqueous extract of Euclayptus camaldulensis Dehnh | |
Adeshina et al. | Phytochemical and antimicrobial studies of the ethyl acetate extract of Alchornea cordifolia leaf found in Abuja, Nigeria | |
Nabandith et al. | Inhibitory effects of crude alpha-mangostin, a xanthone derivative, on two different categorie of colon preneoplastic lesions induced by 1, 2-dimethylhydrazine in the rat | |
Chan et al. | Phytochemistry and pharmacology of three Piper species: An update | |
Isah et al. | Phytochemical and antimicrobial analyses of stem-leaf of Cochlospermum planchonii | |
Habyarimana et al. | Phytochemical and antimicrobial activity of Ocimum suave against selected human pathogenic bacteria | |
CN107253960B (zh) | 野八角倍半木脂素及其制备方法、应用和药物组合物 | |
Alamilla-Fonseca et al. | Leishmania mexicana cell death achieved by Cleoserrata serrata (Jacq.) Iltis: Learning from Maya healers | |
Kumudhaveni et al. | A Review on phytochemical and pharmacological activity of medicinal plant Barleria cristata | |
Mbakwem-Aniebo et al. | Effects of Ficus exasperata Vahl on common dermatophytes and causative agent of Pityriasis Versicolor in rivers state, Nigeria | |
Owolabi et al. | In vitro antimicrobial appraisal of the potentials of Morinda lucida against some selected bacteria | |
WO2012174622A1 (pt) | Extrato vegetal obtido de kielmeyera aureovinosa com atividade antibiótica, composto químico isolado, composições compreendendo os mesmos, seus usos e métodos de prevenção e tratamento de infecções bacterianas | |
Lakshmi et al. | A review on natural plants for phytochemical constituents and pharmacological activities | |
CN102821773A (zh) | 包含笃斯越橘提取物或笃斯越橘部分作为活性成分的用于治疗、预防或改善黄斑变性的组合物 | |
Mahalik et al. | Ethnomedicinal, phytochemical and pharmacological properties of Mangifera indica L: A review | |
KR20130048109A (ko) | 부처손 추출물 또는 이의 분획물을 포함하는 폐렴 예방 또는 치료용 약학적 조성물 | |
DAVE | Antimicrobial activity and phytochemical study of plant parts of Butea monosperma | |
US9980998B2 (en) | Medicinal composition having antibiotic, anti-inflammatory, and wound healing activity | |
CN102935083A (zh) | 苯乙醇苷类单体化合物的应用 | |
Chattopadhyay et al. | Preliminary phytochemical screening and in vitro evaluation of anthelmintic activity of leaves and stem bark of Mangifera Indica L.(Anacardiaceae) | |
CN107912462A (zh) | 一种检验科消毒用中西药组合物及制备方法 | |
DONKOR et al. | Extracts of Euphobia hirta Linn and Physalis angulata L. and their amalgamation demonstrate potency against Staphylococcus aureus and Pseudomonas aeruginosa | |
Hieu et al. | Moss Bryum weigelii spreng improves survival in septic rats induced by cecal ligation and puncture | |
BR102021022111A2 (pt) | Composição de microcápsulas de uncaria tomentosa, processos de obtenção e caracterização de microcápsulas de uncaria tomentosa e usos da mesma | |
KR20130042726A (ko) | 부처손 추출물 또는 이의 분획물을 포함하는 편도선염 예방 또는 치료용 약학적 조성물 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 12802772 Country of ref document: EP Kind code of ref document: A1 |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
REEP | Request for entry into the european phase |
Ref document number: 2012802772 Country of ref document: EP |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2012802772 Country of ref document: EP |
|
WWE | Wipo information: entry into national phase |
Ref document number: 14127870 Country of ref document: US |
|
REG | Reference to national code |
Ref country code: BR Ref legal event code: B01A Ref document number: 112013033102 Country of ref document: BR |
|
ENP | Entry into the national phase |
Ref document number: 2869331 Country of ref document: CA |
|
ENP | Entry into the national phase |
Ref document number: 112013033102 Country of ref document: BR Kind code of ref document: A2 Effective date: 20131220 |