Flumazenil (Ro15-1788) does not affect ethanol tolerance and dependence. 1991

A W Chan, and F W Leong, and D L Schanley, and M C Langan, and F Penetrante
Research Institute on Alcoholism, New York State Division of Alcoholism and Alcohol Abuse, Buffalo 14203.

There are conflicting reports concerning whether flumazenil (Ro15-1788) can antagonize the central effects of ethanol and ethanol withdrawal reactions. C57BL/6J mice were treated chronically with an ethanol liquid diet. Control mice were pair fed an isocaloric diet containing no ethanol. These mice were injected with either Ro15-1788 (25 mg/kg) or vehicle immediately before, 14 h or 24 h before ethanol withdrawal. Under these conditions, no attenuation of the severity of handling-induced withdrawal seizures or of withdrawal hypothermia was observed in the ethanol-dependent mice injected with Ro15-1788. Likewise, there was no abolition or attenuation of tolerance to the ataxic effects (sleep time and horizontal dowel tests) and hypothermic effects of ethanol by Ro15-1788 when the mice were tested on day 3 of ethanol withdrawal. It is concluded that Ro15-1788 (25 mg/kg) has no effect on ethanol tolerance and dependence.

UI MeSH Term Description Entries
D007274 Injections, Intraperitoneal Forceful administration into the peritoneal cavity of liquid medication, nutrient, or other fluid through a hollow needle piercing the abdominal wall. Intraperitoneal Injections,Injection, Intraperitoneal,Intraperitoneal Injection
D008297 Male Males
D008810 Mice, Inbred C57BL One of the first INBRED MOUSE STRAINS to be sequenced. This strain is commonly used as genetic background for transgenic mouse models. Refractory to many tumors, this strain is also preferred model for studying role of genetic variations in development of diseases. Mice, C57BL,Mouse, C57BL,Mouse, Inbred C57BL,C57BL Mice,C57BL Mice, Inbred,C57BL Mouse,C57BL Mouse, Inbred,Inbred C57BL Mice,Inbred C57BL Mouse
D001831 Body Temperature The measure of the level of heat of a human or animal. Organ Temperature,Body Temperatures,Organ Temperatures,Temperature, Body,Temperature, Organ,Temperatures, Body,Temperatures, Organ
D004032 Diet Regular course of eating and drinking adopted by a person or animal. Diets
D004361 Drug Tolerance Progressive diminution of the susceptibility of a human or animal to the effects of a drug, resulting from its continued administration. It should be differentiated from DRUG RESISTANCE wherein an organism, disease, or tissue fails to respond to the intended effectiveness of a chemical or drug. It should also be differentiated from MAXIMUM TOLERATED DOSE and NO-OBSERVED-ADVERSE-EFFECT LEVEL. Drug Tolerances,Tolerance, Drug,Tolerances, Drug
D005442 Flumazenil A potent benzodiazepine receptor antagonist. Since it reverses the sedative and other actions of benzodiazepines, it has been suggested as an antidote to benzodiazepine overdoses. Flumazepil,Anexate,Lanexat,Ro 15-1788,Romazicon,Ro 15 1788,Ro 151788
D006234 Handling, Psychological Physical manipulation of animals and humans to induce a behavioral or other psychological reaction. In experimental psychology, the animal is handled to induce a stress situation or to study the effects of "gentling" or "mothering". Handling (Psychology),Handling, Psychology,Psychological Handling,Psychology Handling
D000431 Ethanol A clear, colorless liquid rapidly absorbed from the gastrointestinal tract and distributed throughout the body. It has bactericidal activity and is used often as a topical disinfectant. It is widely used as a solvent and preservative in pharmaceutical preparations as well as serving as the primary ingredient in ALCOHOLIC BEVERAGES. Alcohol, Ethyl,Absolute Alcohol,Grain Alcohol,Alcohol, Absolute,Alcohol, Grain,Ethyl Alcohol
D000818 Animals Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA. Animal,Metazoa,Animalia

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