DE2262787C2 - Antibacterial agent - Google Patents
Antibacterial agentInfo
- Publication number
- DE2262787C2 DE2262787C2 DE2262787A DE2262787A DE2262787C2 DE 2262787 C2 DE2262787 C2 DE 2262787C2 DE 2262787 A DE2262787 A DE 2262787A DE 2262787 A DE2262787 A DE 2262787A DE 2262787 C2 DE2262787 C2 DE 2262787C2
- Authority
- DE
- Germany
- Prior art keywords
- fluoro
- cycloserine
- concentration
- alanln
- growth
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- 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
- A61K31/33—Heterocyclic compounds
- A61K31/395—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins
- A61K31/41—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having five-membered rings with two or more ring hetero atoms, at least one of which being nitrogen, e.g. tetrazole
- A61K31/42—Oxazoles
Landscapes
- Health & Medical Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- Medicinal Chemistry (AREA)
- Pharmacology & Pharmacy (AREA)
- Epidemiology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
- Heterocyclic Carbon Compounds Containing A Hetero Ring Having Nitrogen And Oxygen As The Only Ring Hetero Atoms (AREA)
- Medicines That Contain Protein Lipid Enzymes And Other Medicines (AREA)
Description
Weibliche Mause mit einem Durchschnittsgewicht von 21,0 g werden Intraperltoneal mit 0,5 ml einer Verdünnung einer 16-Stunden-Boulllon-Kultur, welche den angegebenen Erreger enthalt, geimpft. (Die Schwere der Infektion wird In jedem einzelnen Fall als ein Vielfaches der Verdünnung der Bouillon-Kultur, welche für 50% der nichtbehandelten Tiere tödlich Ist, das heißt als LD50, dargestellt.) Dosierungen von 3-Fluor-D-alanln (FSA) 10 Female mice with an average weight of 21.0 g are inoculated intraperltoneally with 0.5 ml of a dilution of a 16-hour Boulllon culture containing the specified pathogen. (The severity of the infection is shown in each individual case as a multiple of the dilution of the broth culture, which is fatal for 50% of the untreated animals, that is, as LD 50. ) Doses of 3-fluoro-D-alanln (FSA ) 10
und von D-Cycloserln werden einzeln und als Kombination der beiden Verbindungen In einem festen Verhältnis von 1 :1 In einem 0,5 ml Volumen subkutan In den Rükken der Tiere geimpft, und zwar sofort nach der Inflzlening und danach In einem zwei- und vierstündigen Intervall. Die Ergebnisse dieses Versuches werden als EDS0-Doslerung ausgedrückt. Die ED^-Dosierung Ist die statistisch Interpolierte Dosis, die erforderlich Ist, um 50% der infizierten Tisre 7 Tage nach der Infizienwg und Behandlung zu schützen:and of D-Cyclosers are inoculated individually and as a combination of the two compounds in a fixed ratio of 1: 1 in a 0.5 ml volume subcutaneously in the back of the animals, namely immediately after inflation and then in a two- and four-hour period Interval. The results of this experiment are expressed as ED S0 -Doslerung. The ED ^ Dose is the Statistically Interpolated Dose required to protect 50% of the infected Tisre 7 days after infection and treatment:
InfektionsorganismusInfectious organism
Staphylococcus aureus 2949Staphylococcus aureus 2949
Proteus morganll 3376 > 100 > 2,0 > 5,0 0,57 + 0,57Proteus morganll 3376> 100> 2.0> 5.0 0.57 + 0.57
Serratla species 3374 3 1,7 2,5 0,18 + 0,18Serratla species 3374 3 1.7 2.5 0.18 + 0.18
Die Vermlnderuiit der Dosierung bei der FDA-Cycloserln-Kombinätion ver°!!chen mit der Dos!erun° für die Einzelkomponenten, geht aus der folgenden Tabelle hervor: The diameter of the dosage in the case of the FDA-cycloserine combination ver ° !! check with the dose! erun ° for the Individual components, can be seen from the following table:
ED30 für Kombination, ausgedrückt als ungefährer Prozenlsk;z der ED50 für die Elnzelkomponcnten FDA CycloserinED 30 for combination, expressed as an approximate percentage of the ED 50 for the individual components FDA cycloserine
Staphylococcus aureus 5% 9%Staphylococcus aureus 5% 9%
Proteus morganll 25% \0% Proteus morganll 25% \ 0%
Serratla species )0% 7%Serratla species) 0% 7%
Gruppen von fünf weiblichen Mäusen mit einem Durchschnittsgewicht von 21,0 g werden intraperltoneal mit 0.5 ml einer verdünnten FlelschbrUhkultur von Escherlchla coil 2017, welche 3 LD50 des bakteriellen Erregers entspricht, geimpft. Im Anschluß daran werden die In der nachfolgenden Tabelle angegebenen Dosierungen an 3-Fluor-D-alanln (FDA) und D-Cycloserln In einem Volumen von 0,5 ml subkutan In den Rücken gespritzt.Groups of five female mice with an average weight of 21.0 g are inoculated intraperltoneally with 0.5 ml of a diluted bottle broth culture of Escherlchla coil 2017, which corresponds to 3 LD 50 of the bacterial pathogen. Subsequently, the doses of 3-fluoro-D-alanine (FDA) and D-cyclosene given in the table below are injected subcutaneously into the back in a volume of 0.5 ml.
In der ersten Reihe der folgenden Tabelle wird jeweils die Zahl der überlebenden Mäuse (aus jeder Gruppe von fünf Infizierten Mäusen) für die angegebene Dosierung von 3-Fluor-D-alanln (In mg) angegeben. In der ersten vertikalen Spalte wird die Zahl der überlebenden Tiere für die angegebenen Dosierungen von Cycloserin allein (In mg) gezeigt. In der zweiten vertikalen Spalte ist die Zahl der überlebenden Mäuse angegeben, wenn man eine Kombination von 5,0 mg 3-Fluor-D-alanln mit den angegebenen Mengen Cycloserin (In mg) anwendet.The number of surviving mice (from each group of five infected mice) for the stated dosage of 3-fluoro-D-alanln (in mg). In the first vertical column shows the number of surviving animals for the indicated dosages of cycloserine alone (In mg) shown. In the second vertical column is the Number of surviving mice indicated when one combined 5.0 mg of 3-fluoro-D-alanln with the indicated Use amounts of cycloserine (in mg).
mgmg
D-Cycloserln
pro DosisD-cyclose
per dose
0,019 mg
0.039 mg
0,078 mg0.019 mg
0.039 mg
0.078 mg
0,156 mg
0,312 mg
0,625 mg
1,25 mg
2,5 mg0.156 mg
0.312 mg
0.625 mg
1.25 mg
2.5 mg
5,0 mg5.0 mg
Anzahl der überlebenden Mäuse in jeder Gruppe aus jeweils fünf Infizierten TierenNumber of surviving mice in each Group of five infected animals each
0 mg 3-Fluor-D-alanin pro Dosis0 mg 3-fluoro-D-alanine per dose
0,0^ mg 0,312 mg 1,25 mg 5,0 mg0.0 ^ mg 0.312 mg 1.25 mg 5.0 mg
Es Ist bemerkenswert, daß bei einer 1,25 mg Dosierung von 3-Fluor-D-alanln allein 80% der Tiere überleben, während bei einer Dosierung von 5,0 mg (auf Grund desIt is noteworthy that at a 1.25 mg dosage 80% of the animals survive from 3-fluoro-D-alanin alone, while at a dosage of 5.0 mg (due to the
«5 Autoantagonismus) nur eine 20%lge Überlebensrate vorliegt. Eine Kombinationsdosierung von 5,0 mg 3-Fluor-D-alanln und 0.156 mg Cycloserin (bei dieser Menge gibt Cycloserin alleine keinen Schutz) ergibt einen Überlebensprozentsatz von 100, das heißt, daß durch 0,156 mg«5 autoantagonism) there is only a 20% survival rate. A combination dosage of 5.0 mg 3-fluoro-D-alanln and 0.156 mg cycloserine (at this amount cycloserine alone does not give protection) gives a survival percentage of 100, that is, that by 0.156 mg
so Cycloserin der durch eine 5,0 mg Dosierung von 3-Fluor-D-alanln verursachte Autoantagonismus vollkommen unterbunden wird.so cycloserine by a 5.0 mg dosage of 3-fluoro-D-alanln caused autoantagonism is completely prevented.
Claims (1)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US22336072A | 1972-02-03 | 1972-02-03 | |
US31487872A | 1972-12-13 | 1972-12-13 |
Publications (2)
Publication Number | Publication Date |
---|---|
DE2262787A1 DE2262787A1 (en) | 1973-08-09 |
DE2262787C2 true DE2262787C2 (en) | 1982-09-23 |
Family
ID=26917692
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE2262787A Expired DE2262787C2 (en) | 1972-02-03 | 1972-12-21 | Antibacterial agent |
Country Status (9)
Country | Link |
---|---|
BE (1) | BE794913A (en) |
CA (1) | CA1024448A (en) |
DE (1) | DE2262787C2 (en) |
FR (1) | FR2181703B1 (en) |
GB (1) | GB1421023A (en) |
HK (1) | HK86479A (en) |
IE (1) | IE37134B1 (en) |
IL (1) | IL41358A (en) |
NL (1) | NL177183C (en) |
-
1972
- 1972-12-21 DE DE2262787A patent/DE2262787C2/en not_active Expired
-
1973
- 1973-01-16 NL NLAANVRAGE7300636,A patent/NL177183C/en not_active IP Right Cessation
- 1973-01-22 IL IL41358A patent/IL41358A/en unknown
- 1973-01-23 IE IE100/73A patent/IE37134B1/en unknown
- 1973-01-24 CA CA161,913A patent/CA1024448A/en not_active Expired
- 1973-01-29 GB GB442673A patent/GB1421023A/en not_active Expired
- 1973-02-02 BE BE794913D patent/BE794913A/en not_active IP Right Cessation
- 1973-02-02 FR FR7303668A patent/FR2181703B1/fr not_active Expired
-
1979
- 1979-12-20 HK HK864/79A patent/HK86479A/en unknown
Also Published As
Publication number | Publication date |
---|---|
GB1421023A (en) | 1976-01-14 |
FR2181703B1 (en) | 1975-11-21 |
FR2181703A1 (en) | 1973-12-07 |
CA1024448A (en) | 1978-01-17 |
NL177183B (en) | 1985-03-18 |
IL41358A (en) | 1976-03-31 |
BE794913A (en) | 1973-08-02 |
NL177183C (en) | 1985-08-16 |
NL7300636A (en) | 1973-08-07 |
IL41358A0 (en) | 1973-03-30 |
IE37134B1 (en) | 1977-05-11 |
IE37134L (en) | 1973-08-03 |
DE2262787A1 (en) | 1973-08-09 |
HK86479A (en) | 1979-12-28 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
OD | Request for examination | ||
D2 | Grant after examination |