WO2008075978A2 - An extract - Google Patents
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- WO2008075978A2 WO2008075978A2 PCT/NZ2007/000370 NZ2007000370W WO2008075978A2 WO 2008075978 A2 WO2008075978 A2 WO 2008075978A2 NZ 2007000370 W NZ2007000370 W NZ 2007000370W WO 2008075978 A2 WO2008075978 A2 WO 2008075978A2
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K31/00—Medicinal preparations containing organic active ingredients
- A61K31/16—Amides, e.g. hydroxamic acids
- A61K31/164—Amides, e.g. hydroxamic acids of a carboxylic acid with an aminoalcohol, e.g. ceramides
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K31/00—Medicinal preparations containing organic active ingredients
- A61K31/185—Acids; Anhydrides, halides or salts thereof, e.g. sulfur acids, imidic, hydrazonic or hydroximic acids
- A61K31/19—Carboxylic acids, e.g. valproic acid
- A61K31/20—Carboxylic acids, e.g. valproic acid having a carboxyl group bound to a chain of seven or more carbon atoms, e.g. stearic, palmitic, arachidic acids
- A61K31/202—Carboxylic acids, e.g. valproic acid having a carboxyl group bound to a chain of seven or more carbon atoms, e.g. stearic, palmitic, arachidic acids having three or more double bonds, e.g. linolenic
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K35/00—Medicinal preparations containing materials or reaction products thereof with undetermined constitution
- A61K35/56—Materials from animals other than mammals
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P1/00—Drugs for disorders of the alimentary tract or the digestive system
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P11/00—Drugs for disorders of the respiratory system
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P11/00—Drugs for disorders of the respiratory system
- A61P11/06—Antiasthmatics
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P13/00—Drugs for disorders of the urinary system
- A61P13/12—Drugs for disorders of the urinary system of the kidneys
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P17/00—Drugs for dermatological disorders
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P19/00—Drugs for skeletal disorders
- A61P19/02—Drugs for skeletal disorders for joint disorders, e.g. arthritis, arthrosis
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P25/00—Drugs for disorders of the nervous system
- A61P25/02—Drugs for disorders of the nervous system for peripheral neuropathies
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P25/00—Drugs for disorders of the nervous system
- A61P25/28—Drugs for disorders of the nervous system for treating neurodegenerative disorders of the central nervous system, e.g. nootropic agents, cognition enhancers, drugs for treating Alzheimer's disease or other forms of dementia
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P29/00—Non-central analgesic, antipyretic or antiinflammatory agents, e.g. antirheumatic agents; Non-steroidal antiinflammatory drugs [NSAID]
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P9/00—Drugs for disorders of the cardiovascular system
- A61P9/10—Drugs for disorders of the cardiovascular system for treating ischaemic or atherosclerotic diseases, e.g. antianginal drugs, coronary vasodilators, drugs for myocardial infarction, retinopathy, cerebrovascula insufficiency, renal arteriosclerosis
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P9/00—Drugs for disorders of the cardiovascular system
- A61P9/14—Vasoprotectives; Antihaemorrhoidals; Drugs for varicose therapy; Capillary stabilisers
Definitions
- the invention relates to an extract. More specifically, the invention relates to oil extracts from marine based raw materials rich in fatty acid amide compounds including N- acylethanolamide (NAE) compounds such as N-palmitoylethanolamide (PEA) and N- arachidonoylethanolamide (anandamide, AEA).
- NAE N- acylethanolamide
- PDA N-palmitoylethanolamide
- AEA N- arachidonoylethanolamide
- N-palmitoylethanolamide is an endogenous fatty acid amide belonging to the family known as N-acylethanolamines (NAE's; or N-acylethanolamides), including 'cannabis-like' compounds such as N-arachidonoylethanolamide (anandamide, AEA).
- PEA and AEA have the potential to treat a range of human/ animal conditions involving abnormal inflammatory and/or immune responses and associated pain (see Lambert et al., 2002, for a review).
- PEA is a naturally occurring lipid found in many different cells of animal, marine and plant origin (see Lambert et al., 2002, for a review). In living organisms, PEA synthesis is rapidly induced in response to cellular stressors, such as tissue damage or pathological insults, which are often accompanied by inflammation and pain (Darmani, et al., 2005). While the biological functions of PEA in humans are not completely understood, it has been hypothesized that PEA constitutes one of several natural anti-inflammatory and analgesic chemicals (Darmani, et al., 2005).
- the crude lipid extracted from the freeze-dried flesh of Perna canaliculus using chloroform and methanol consists of a complex mixture of triglycerides, sterol esters, sterols, polar lipids, free fatty acids and their derivatives, such as NAEs (Sepe et al., 1998; Murphy et al., 2002; Murphy et al., 2003).
- PEA and N-stearoylethanolamide are the most abundant NAEs in blue mussel lipid extracts along with much smaller amounts of N-myristoyl (C14:0)-, N- oleoyl (C18:1)-, N-linoleoyl (C18:2)-, and N-arachidonoyl (C20:4; anandamide/ AEA)- ethanolamides.
- N-myristoyl C14:0
- N-oleoyl C18:1-
- N-linoleoyl (C18:2)- N-arachidonoyl
- C20:4; anandamide/ AEA N-arachidonoyl
- PEA is a saturated 16 carbon fatty acid ethanolamide (C16:0), with the structure:
- AEA is a polyunsaturated 20 carbon fatty acid ethanolamide (C20:4) with the structure:
- a cream containing "structured natural lipids" with PEA for topical administration has also been developed (PhysiogelTM A.I., Stiefel Laboratories) and evaluated in two small-scale clinical trials. The first was an observational study in which 19 adult patients diagnosed with anal eczema were instructed to apply the cream to the affected area for between 6 and 63 days (Rohde & Ghyczy, 2003). After 4 weeks of the trial, 68% of patients reported a reduction in pain, burning sensation and itch, with 21% recording a worsening of symptoms. The cream was reportedly well tolerated by 95% patients.
- PEA anti-inflammatory and analgesic effects
- cannabinoid receptors a finding that may account for PEAs lack of psychotropic effects.
- CB 1 and/or CB 2 receptors the majority of AEAs actions appear to be mediated via CB 1 and/or CB 2 receptors in the brain and periphery.
- One problem with the use of AEA is its psychotropic side effects, which are thought to be mediated by CB 1 receptors.
- PEA interacts with a number of important targets in the body.
- Evidence gathered from in vitro and in vivo studies indicates that PEA reduces oedma, mast cell proliferation, neutrophil infiltration and a number of endogenous mediators of inflammation including: mast cell degranulation (preventing release of histamine and serotonin), cyclo-oxygenase-2 (COX-2) activity, endothelial nitric oxide synthase activity, nitric oxide production from macrophages and lipid peroxidation during acute hypoxia (Gulaya et al., 1998).
- PEA peroxisome proliferator-activated receptor alpha
- Inflammation is part of the body's normal response to injury and infection and is characterised by the classic signs of localised redness, swelling, heat and pain.
- a normal inflammatory response is an acute process that resolves following removal of the stimulus and the initiation of repair and tissue healing.
- acute inflammation can progress to chronic inflammation, which is a key component of a large number of pathologies affecting bone and joint, respiratory, skin, gastrointestinal tract, cardiovascular and neural systems.
- the processes underlying acute and chronic inflammation are to a large distinct.
- NSAIDs non-steroidal anti-inflammatory drugs
- DMARDs Disease Modifying Anti-inflammatory Drugs
- AD Atopic dermatitis/ eczema
- itch a chronic skin condition classically presenting as reddening, itch and the formation of vesicles which may lead to weeping and crusting.
- AD affects at least 15% of the developed world and is often associated with other forms of allergy, such as asthma and hay fever (Lee, Y-A., et al., 2000).
- Topical corticosteroids are the gold standard of drug treatment for AD.
- one of the main drawbacks to long-term topical corticosteroid use is the risk of adverse effects such as skin shrinkage, oral and allergic contact dermatitis, acne, decreased skin pigmentation and excessive hair growth within the treatment area.
- non-steroidal products e.g., pimecrolimus, tacrolimus, antibiotics, cyclosporine, methotrexate, etc
- these are often less efficacious and none are without adverse effects that are occasionally serious (see Abramovits, 2005, for a review).
- pimecrolimus and tacrolimus recently received FDA Black Box warnings regarding a possible cancer risk.
- Stabilized lipid extracts of the New Zealand Green-lipped mussel ⁇ Perna canaliculus, NZGLMJ have demonstrated beneficial effects in several different animal models of inflammation as well as chronic inflammatory conditions in humans (Whitehouse et al., 1997; Whitehouse et al., 1999; Shiels & Whitehouse, 2000; Tenikoff et al., 2005; Gibson & Gibson, 1998; Emelyanov et al., 2002; Cho et al., 2003; Gruenwald, et al., 2004).
- Stabilization typically involves the addition of an organic acid, such as tartaric acid, to reduce oxidation of PUFA prior to processing (WO85/05033; NZ211928).
- Mussel patents in the art are related to various aspects of mussel extract formulation, for example:
- NZ211928 describes a formulation for stabilising green shell mussel extract by adding an organic acid (acetic acid, citric acid, tartaric acid, lactic acid) and/or a metal salt to the mussel flesh suspended in saline once harvested.
- organic acid acetic acid, citric acid, tartaric acid, lactic acid
- metal salt a metal salt
- NZ270754 describes a combination of finely ground mussel extract suspended within fish oil.
- NZ314867 describes a protein extract from green shell mussel combined with glycosamino- glycans.
- NZ514389 describes delivery of a green shell mussel extract to a pet in a pet food at a rate of 0.18 to 114 mg/kg of animal body weight per day.
- Other patents describe extraction processes to enrich the extract in selected components, for example:
- N2329018 describes a process for extracting glycogen from mussels by treating with proteolytic enzyme in water, separating the solid residue and recovering the glycogen from the aqueous solution.
- NZ510407 describes an extract of green shell mussel containing carbohydrate and lipids and with the protein fraction removed.
- NZ328489 describes a protein extract from green shell mussel as well as a method of producing the extract by stirring the flesh for 45 minutes in phenol solution then centrifuging / aspirating the upper layer and precipitating out the protein containing product using ethanol.
- lipid Two widely available commercial preparations of the NZGLM are SeatoneTM and LyprinolTM.
- Seatone consists of a stabilised freeze-dried powder obtained from whole mussel flesh
- LyprinolTM is an oil extracted from stabilized freeze-dried flesh (via supercritical CO 2 fluid) with the addition of olive oil and vitamin E and formulated into capsules (Pharmalink International Ltd., Cayman Islands).
- LyprinolTM contains five major classes of lipid: free fatty acids, triglycerides, sterol esters, sterols and phospholipids (Sinclair et al., 2000; Wolyniak et al., 2005).
- LyprinolTM The most abundant free fatty acids in LyprinolTM are: palmitic (C16:0), linoleic (C18:2n-6), EPA (C20:5n-3), DHA (C22:6n-3), palmitoleic (C16:1n-7), C16:1n-9,7,5 and myristic (C14:0) (Sinclair et al., 2000; Wolyniak et al., 2005). Although a large number of other fatty acids have also been identified (some 91 in all), individually these are present in only small quantities (below 5% w/w total lipid; Wolyniak et al., 2005).
- the omega-3 PUFA's comprise 40% of the total fatty acids and EPA and DHA are the most abundant (Wolyniak et al., 2005). There is evidence to suggest that most of the antiinflammatory activity of LyprinolTM resides in the fatty acid fraction (Whitehouse et al., 1999; Treschow et al., 2007).
- LyprinolTM Following a course of LyprinolTM human subjects had reduced levels of several proinflammatory compounds including thromboxane B 2 , prostaglandin E 2 and interleukin-1 ⁇ , similar to those observed following low-dose omega-3 polyunsaturated fatty acid supplements (Sinclair et al., 2000). This suggests that a significant component of Lyprinol'sTM activity may be due to its omega-3 content, a possibility that is consistent with recent in vitro evidence (McPhee et al., 2007; Treschow et al., 2007). The hypothesized mode of action of LyprinolTM is via inhibition of both the 5-lipoxygenase and COX pathways.
- the term 'marine based' refers to shellfish organisms living in or around the seawater or freshwater.
- 'N-acylethanolamine' (NAE) is used but includes other names common to the art for this group of compounds including 'N-acylethanolamides' or fatty acid ethanolamides.
- composition containing an oil extract from a marine based organism that is rich in fatty acid amide compounds there is provided a composition containing an oil extract from a marine based organism that is rich in fatty acid amide compounds.
- composition containing an oil extract from a marine based organism that is rich in N- acylethanolamine (NAE) compounds is provided.
- the extract is rich in N-palmitoylethanolamide (PEA).
- PEA N-palmitoylethanolamide
- palmidrol N-(2-hydroxyethyl) - hexadecanamide
- compositions containing an oil extract from a marine based organism containing at least 0.10 ⁇ g/g of PEA as measured in the wet weight of the marine organism flesh prior to extraction.
- composition containing an oil extract from a marineiDased organism that is rich in NAE compounds including at least 0.10 ⁇ g/g of PEA as measured in the wet weight of the marine organism flesh prior to extraction.
- the composition is rich in a range of NAE compounds.
- the composition includes (but is not limited to) having quantities of the NAEs: N-stearoylethanolamide (18:0), 70 ng/ g; N-oleoylethanolamide (C18:1), 5 ng/ g; N-linoleoylethanolamide (C18:2), 5 ng/ g; and N-arachidonoylethanolamide (C20:4, anandamide), 8 ng/ g in the wet flesh prior to extraction.
- N-stearoylethanolamide (18:0), 70 ng/ g
- N-oleoylethanolamide (C18:1) 5 ng/ g
- N-linoleoylethanolamide (C18:2) 5 ng/ g
- N-arachidonoylethanolamide C20:4, anandamide
- 8 ng/ g in the wet flesh prior to extraction.
- the composition may also contain other NAEs and may also include NAEs in
- the marine based organism is a bivalve mollusc. More preferably, the organism is a mussel species. Most preferably, the organism is a mussel of the species Perna or Mytilus (green or blue mussel respectively). This should not be seen as limiting as other species may also be included for example, clam and oyster species.
- the fatty acid amide compounds include NAE compounds.
- the NAE compounds include: N-myristoylethanolamide, C14:0; N- palmitoylethanolamide (PEA), C16:0; N-stearoylethanolamide, C18:0; N- oleoylethanolamide, C18:1 ; N-linoleoylethanolamide, C18:2; N- arachidonoylethanolamide (anandamide, AEA), C20:4; N-eicosaenoylethanolamide, C20:1 , and combinations thereof.
- the level of PEA in the oil extract is at least 0.10 ⁇ g/g as measured in the wet tissue of the marine organism prior to any extraction. More preferably, the level is at least 0.50 ⁇ g/g. In selected embodiments the level of PEA may be greater than 3.0 ⁇ g/g.
- the level of AEA in the oil extract is at least 0.008 ⁇ g/g wet tissue of the marine organism prior to any extraction. More preferably, the level is greater than 0.01 ⁇ g/g wet tissue of the marine organism prior to any extraction. In selected embodiments the level of AEA may be greater than 0.05 ⁇ g/g.
- the composition includes PEA in the oil extract at a level greater than 1.0 ⁇ g/g as measured in the dried tissue of the marine organism prior to any further extraction.
- the composition includes AEA in the oil extract at a level greater than
- the fatty acid amide levels in the raw marine material substantially as described above may be enriched.
- the term 'enriched' refers to an increase in the concentration/amount of fatty acid amide compounds in the marine material before any concentration occurs via a drying process.
- enrichment occurs by harvesting, crushing and then holding the marine material in a crushed state at between 4 and 10°C for a time period of at least 24 hours. In one embodiment, the material may be held for up to 144 hours.
- the inventors have found that by completing the above enrichment step, the concentration/amount of fatty acid amide compounds increases. This is thought to be due to biochemical reactions occurring post-mortem in the marine material.
- this process resulted in a substantial enrichment of mussel meat fatty acid amide levels.
- the inventors discovered that by using the parameters described, microbial contamination does not occur to an extent detrimental to the extract being suitable for human consumption. As may be appreciated, normal handling procedures for marine based materials requires steps to be taken as quickly as possible to prevent microbial growth such as freezing or drying. Allowing the material to be held for several days at 1O 0 C goes against current practice and yet the level of microbial contamination was unexpectedly low for this time and temperature.
- the composition is rich in fatty acid amides including PEA and AEA but may also include other compounds (both fatty acid amides and other compounds).
- the composition also includes at least one polyunsaturated fatty acid (PUFA) compound. More preferably, the PUFA compound or compounds include omega-3 PUFAs.
- the oil extract includes at least one PUFA compound. More preferably, the PUFA or PUFAs are of the omega-3 class. Preferably, the PUFA or PUFAs are selected from: 4,7,10,13,16,19-docosahexaenoic acid (DHA; 22:6n3), 5,8,11 ,14,17- eicosatetraenoic acid (EPA, 20:5n3), 6,9,12,15-octadecatetraenoic acid (OTA, 18:4n3), 9,12,15-octadecatrienoic acid (ALA, 18:3n3), 7,10,13,16,19- docosapentaenoic acid (DPA, 22:5n3), 11,14,17-eicosatrienoic acid (ETA, 20:3n3), 8,11 ,14,17-eicosatetraenoic acid (20:4n3) and combinations thereof. In preferred embodiments, the DHA content is greater than 3
- the composition is formulated as an orally administered powder, solution, suspension, emulsion, oil, tablet or capsule.
- the composition may alternatively be formulated for topical administration, for example as a cream, lotion, ointment or oil.
- the composition is a solid or liquid food for administration as a 'functional food'.
- a formulation for oral or topical administration containing a therapeutically effective amount of an oil extract from a marine based organism that is rich in fatty acid amide compounds.
- a formulation for oral or topical administration containing a therapeutically effective amount of an oil extract from a marine based organism that is rich in NAEs.
- a formulation for oral or topical administration containing a therapeutically effective amount of an oil extract rich in PEA.
- a formulation for oral or topical administration containing a therapeutically effective amount of an oil extract from a marine based organism containing at least 0.10 ⁇ g/g of PEA as measured in the wet weight of the marine organism flesh prior to extraction.
- a formulation for oral or topical administration containing a therapeutically effective amount of an oil extract from a marine based organism that is rich in NAE compounds including at least 0.10 ⁇ g/g of PEA in the wet weight of the marine organism flesh prior to extraction.
- the oil extract also includes at least 0.008 ⁇ g/g of AEA in the wet weight of the marine organism flesh prior to extraction.
- the formulation as described above also includes at least one PUFA. More preferably, the PUFA or PUFAs include omega-3 fatty acids.
- the formulation includes carrier substances and may also include accepted food-grade antioxidants to assist in long-term stability of the extracted active compounds.
- the formulation is a capsule for oral administration wherein the capsule is filled with oil extract sourced from mussel meat.
- the formulation is a cream or lotion for topical administration wherein the cream/ lotion includes an oil extract sourced from mussel meat.
- the inflammation is of a chronic rather than acute nature.
- disease conditions involving chronic inflammation include: eczema/ atopic dermatitis, asthma, inflammatory bowel disease (including Crohn's disease and ulcerative colitis), rheumatoid and osteoarthritis, glomerulonephritis, atherogenesis, Alzheimer's' disease and adult respiratory distress syndrome.
- disease conditions involving chronic pain include neuropathic and arthritic pain.
- the inflammation is of an acute nature and includes treatment of a soft tissue injury by topical application of a cream containing a composition or formulation of the present invention to the exterior of the injury site.
- the skin diseases to be treated include atopic dermatitis/ eczema and contact dermatitis.
- the symptoms ameliorated include itch, dryness, swelling and reduced proliferation of human keratinocytes.
- the treatments substantially as described above may be incorporated with at least one non-steroidal anti-inflammatory drug (NSAID).
- NSAID non-steroidal anti-inflammatory drug
- the extract may enhance the activity of even low (sub-therapeutic) doses of NSAID thereby reducing the severity of side effects.
- the compositions and formulations of the present invention may also act to enhance the NSAID activity therefore allowing for the advantage of either better efficacy and/or reduced dosage of NSAID required.
- an oil extract containing substantially elevated levels of active compounds that according to the art, are beneficial for at least joint mobility.
- Associated oral and topical formulations are also provided as well as treatments for various inflammation-related disorders and the symptoms thereof.
- the extract of the present invention may address this need. It is envisaged that daily administration of a food or formulation containing an NAE-enriched marine material extract represents an ideal treatment modality for the prevention or treatment of inflammatory symptoms.
- the relative size of the peak demonstrates that PEA makes up an appreciable portion of the total ion current (top trace) suggesting a significant amount of PEA is present in the extract.
- PEA and AEA levels were measured by LC/MS in the crude lipid extracted from the dried meat of freshly harvested Blue and Green mussels and reported as ⁇ g/g in wet flesh (Table 1 below; Giuffrida et al., 2000).
- NAE levels were determined by back-calculation from lipid extract data.
- NAE levels were estimated using a conversion factor based upon trial 1 data (Table 1).
- PEA levels in P. canaliculus were higher than both Mytilus species. Since P. canaliculus contains slightly more meat on an equal weight basis and therefore a slightly higher proportion of dry matter, this at least partly accounts for the higher PEA levels relative to Mytilus. 2) AEA was also present at higher levels in P. canaliculus compared to M. galloprovincialis, although the absolute levels were low.
- a method to enrich the endogenous levels of NAEs in the flesh of P. canaliculus prior to extraction is described.
- homogenised/ intact mussel meat from commercially harvested mussels was incubated under various conditions, as described below, in a laboratory. Incubation times ranged from 0 to 144 hours at 4 or 10 deg C in either aerobic or anaerobic conditions at atmospheric pressure. Tissue pH was monitored at intervals throughout the trial. At the end of the incubation period, the tissue was frozen and subsequently freeze-dried. The experimental conditions were tightly controlled to minimise potential confounding factors such as differences between batches of mussels, freezing or freeze-drying conditions, etc. NAE and omega-3 levels were measured in the freeze-dried mussel.
- Results from the experiment showed that dried meat prepared from homogenised mussels incubated at 10 0 C under aerobic conditions for up to 144 hours had 5 to 10-fold more PEA and AEA relative to dried meat prepared from the same batch of mussels frozen immediately after homogenisation.
- the inventors also unexpectedly found that levels of the major PUFA omega-3s (DHA, EPA and ALA) in the same dried mussel samples were retained even after 144 hours incubation.
- the invention oil extract is rich in NAE compounds including but not limited to PEA.
- the invention extract contains PEA, AEA and/or PUFAs.
- a concentration profile within the lipid extract is anticipated to be: 3.0 - 57.0 ⁇ g/g PEA or more; 0.1-5.2 ⁇ g/g anandamide or more and/or at least 3g/ 100g DHA and at least 5g/ 100g EPA.
- an oral formulation in one embodiment, includes mussel lipid extract (oil) of the present invention, with or without carrier lipid and antioxidant(s), contained within a gel capsule.
- the dosage envisaged for an adult human is approximately 1-4 capsules taken 1-2 times per day. It is anticipated that this administration regime will provide relief of pain and swelling due to chronic inflammation, particularly involving joints (arthritis).
- a topical formulation may include a cream or lotion containing the lipid extract (oil) of the present invention, with or without carrier lipid and antioxidant(s).
- Other substances that may be used in the cream/ lotion include, but are not limited to: propylene glycol, water, glycerin, glycerides, hydrogenated lecithin, betaine, hydroxyethylcellulose, sodium carbomer, squaline, xanthan gum.
- the cream is applied topically to affected areas 1-3 times per day for the relief of dry skin, redness, swelling, itch and the reduction of dermal thickening.
- an oral or topical formulation as described above, is used for the treatment of acute inflammation.
- the extract could be administered within 4 hours of the onset of inflammation (e.g., soft tissue injury) in order to reduce the severity of the symptoms and possibly recovery time.
- the invention oil extract is utilised in a functional food.
- the food may be eaten in order to reduce the risk of developing an inflammatory condition including those described above.
- the product may be the invention oil extract in a ready to use state to be added (e.g. mixed into) various food products either by the consumer or the product manufacturer.
- the invention oil extract is atomized to produce microspheres and added to a range of food products by manufacturers.
- the invention oil extract may be co-administered with an NSAID.
- a low dose of NSAID and an oral dose of the invention extract are used to treat chronic inflammation (e.g. rheumatoid or osteoarthritis; adult dose: 1-4 capsules taken at the same time and frequency as the NSAID).
- the invention extract then potentiates the anti-inflammatory effect of a low dose of NSAID and thus reduce the risk of unwanted effects.
- the invention extract was further investigated by comparison to a prior art commercial product (P. canaliculus product; described in US 6,083,536 and US 6,346,278).
- the invention extract is rich in fatty acid amides including NAE compounds such as PEA and AEA.
- the invention extract may also include PUFA compounds such as EPA and DHA.
- the relative amounts of each key component in the extract of the present invention are compared to the commercial P. canaliculus product (Table 2 below).
- Ethanolamides were quantified by liquid chromatography and mass spectrometry (LC/MS; triple quadruple MS).
- Omega-3 Fatty acids were converted to their FAME and quantified by gas chromatography according to a validated method (AOAC # 963.22).
- Each capsule contains: 50 mg P. canaliculus extract, 100 mg olive oil and 0.225 mg d-alpha- tocopherol.
- Data presented in Table 2 reveal that the extract of the present invention contains substantially higher levels of NAEs (17 fold higher PEA and 26 fold higher AEA) and 0mega-3s (particularly the DHA and EPA) relative to the commercial P. canaliculus product.
- compositions using the composition of the present invention may simply be an undiluted extract or may be mixed with other ingredients, therefore diluting the components above, but to a different extent than in the commercial P. canaliculus product.
- Palmitoylethanolamide enhances anandamide stimulation of human vanilloid VR1 receptors. FEBS Letters, 506(3): 253-256.
- Palmitoylethanolamide inhibits the expression of fatty acid amide hyrolase and enhances the anti-proliferative effect of anandamide in human breast cancer cells. Biochemical Journal, 358(pt 1): 249-255.
Abstract
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Priority Applications (6)
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CN200780051038XA CN101641089B (en) | 2006-12-20 | 2007-12-18 | An extract |
GB0911796A GB2458599B (en) | 2006-12-20 | 2007-12-18 | Oil extract from a bivalve mollusc that is rich in N-acylethanolamides |
KR1020097014697A KR20090103918A (en) | 2006-12-20 | 2007-12-18 | An extract |
CA2710054A CA2710054C (en) | 2006-12-20 | 2007-12-18 | Oil extract from a bivalve mollusc that is rich in n-acylethanolamides |
DE112007003136T DE112007003136T5 (en) | 2006-12-20 | 2007-12-18 | An extract |
HK10103288.3A HK1136218A1 (en) | 2006-12-20 | 2010-03-30 | Oil extract from a bivalve mollusc that is rich in n-acylethanolamides |
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NZ552238A NZ552238A (en) | 2006-12-20 | 2006-12-20 | An extract |
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WO2008075978A3 WO2008075978A3 (en) | 2008-07-31 |
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CN (2) | CN101641089B (en) |
CA (1) | CA2710054C (en) |
DE (1) | DE112007003136T5 (en) |
GB (1) | GB2458599B (en) |
HK (1) | HK1136218A1 (en) |
NZ (1) | NZ552238A (en) |
TW (1) | TWI405568B (en) |
WO (1) | WO2008075978A2 (en) |
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ITPD20090360A1 (en) * | 2009-12-01 | 2011-06-02 | Vermont Italia Srl | COMPOSITION FOR TOPICAL USE |
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NZ552238A (en) | 2006-12-20 | 2009-07-31 | Seperex Nutritionals Ltd | An extract |
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- 2007-12-18 CA CA2710054A patent/CA2710054C/en not_active Expired - Fee Related
- 2007-12-18 KR KR1020097014697A patent/KR20090103918A/en not_active Application Discontinuation
- 2007-12-18 CN CN200780051038XA patent/CN101641089B/en not_active Expired - Fee Related
- 2007-12-18 GB GB0911796A patent/GB2458599B/en not_active Expired - Fee Related
- 2007-12-18 CN CN201310165801.9A patent/CN103638003A/en active Pending
- 2007-12-18 WO PCT/NZ2007/000370 patent/WO2008075978A2/en active Search and Examination
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Also Published As
Publication number | Publication date |
---|---|
GB0911796D0 (en) | 2009-08-19 |
DE112007003136T5 (en) | 2009-11-19 |
CN101641089B (en) | 2013-06-12 |
TWI405568B (en) | 2013-08-21 |
CN101641089A (en) | 2010-02-03 |
GB2458599A (en) | 2009-09-30 |
CN103638003A (en) | 2014-03-19 |
NZ552238A (en) | 2009-07-31 |
CA2710054C (en) | 2012-11-20 |
HK1136218A1 (en) | 2010-06-25 |
WO2008075978A3 (en) | 2008-07-31 |
GB2458599B (en) | 2011-03-23 |
KR20090103918A (en) | 2009-10-01 |
CA2710054A1 (en) | 2008-06-26 |
TW200833318A (en) | 2008-08-16 |
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