[Incidence of alcoholic intoxication on the level of gamma-aminobutyric acid in the brain of the mouse].
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Natural metabolite glycine administered per os to rats in the fetus period of pregnancy in a dose of 1 mg/kg was found to exert a corrective action with respect to the toxic effect of ethanol in the mother-fetus system. Glycine prevents loss in the body weight, normalizes functional state of the nervous system and metabolic disorders in the maternal organism, improve the redox processes in the lymphocytes changed under alcoholization, and protect the fetus both on the metabolic and microstructural levels.
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Prevalence of electrolyte disturbances and biochemical changes were determined in patients admitted to the emergency room of the Department of Internal Medicine in Innsbruck, Austria during a six-month period. The value of biochemical parameters for the detection of chronic alcohol abuse was also investigated. The most frequent electrolyte disturbances found were hypernatremia (41%), hyperchloremia (21%), hypermagnesemia (17%) and hypocalcemia (15%), whereas hypokalemia and hypophosphatemia were observed quite rarely (5% and 3.4%, respectively). The most frequent biochemical changes observed were consistent with signs of cellular toxicity i.e. increased liver enzymes (elevated gamma-glutamyltransferase (GGT), aspartate aminotransferase, alanine aminotransferase and lactic dehydrogenase) as well as signs of pancreatitis (elevated serum lipase and amylase) and muscle damage (elevated creatine kinase). The most frequent changes in blood counts were leucocytosis (23%), thrombocytopenia (14%), and anemia (12%). C-reactive protein showed only minimal elevation. Male sex and level of blood alcohol were detected as major risk factors for the diagnosis of chronic alcohol abuse in the patient sample investigated. When testing the value of routinely measured parameters for predicting the presence of chronic alcohol abuse, GGT and mean corpuscular volume of red blood cells (MCV) appeared to be of equal value. A combination of elevated blood alcohol with an increase in either of these markers may be interpreted as high risk for chronic alcohol abuse in this particular group of patients.
Different brain samples were studied in 23 male alcoholics and 14 healthy victims who had died of heart and major vessels wounds to determine histological changes in the brain and quantitative relations between its tissue structures. The complex of histological, stereo- and morphometric examinations has shown that the brain of alcoholics is characterized by sclerosis and hyalinosis of the vascular branches as well as dystrophic, atrophic and hypertrophic changes of neurocytes. Moreover, there were calcinated petrificates and the cysts, foci of demyelination, diffuse microglyosis. These alterations are accompanied with impairment of quantitative correlations between tissue brain structures. The diameter of cerebral capillaries narrows with resultant lessening of vascular bed capacity and chronic brain ischemia. The concentration of nervous cells decreased because of their progressive atrophy and death while the indices of the glyal component development rose. The findings are important for tanatogenesis and postmortem forensic-medical diagnosis of alcoholism.
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Alcohol consumption is associated with increased morbidity and mortality related to infectious diseases and malignancy (1-5), although immune mediation of these relationships is controversial. Specifically, the activity of natural killer (NK) cells, which are involved in the resistance to infections and metastasis, can be suppressed in the presence of ethanol in vitro. However, acute consumption or infusion of ethanol in vivo exerts no effects on NK activity assessed in vitro thereafter. Therefore, we have developed and used a method to study the effects of ethanol on NK activity in living rats by using an NK-sensitive metastatic process and selective depletion of NK cells in vivo. Acute ethanol intoxication caused a marked suppression of NK activity in vivo and a tenfold increase in the number of MADB106 tumor metastases. Ethanol had no effect in rats selectively depleted of NK cells or when an NK-insensitive tumor (C4047) was used. These findings suggest that even acute ethanol intoxication markedly suppresses NK activity in the living organism. This suppression may underlie some aspects of the association between alcoholism, infectious disease and malignancies.
An account of eight forensic-psychiatric reports characterises the special features of the "semiconscious" form of pathological and pathologically biased inebriation, and contrasts them with "classical" pathological forms.
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Twenty young male volunteers carried out a drinking experiment during which they underwent the Romberg standing test and the Unterberger treading test. These tests were carried out three times each in a sober state, 25 minutes and 2 hours after alcohol consumption. The balance tests were recorded, evaluated and documented by means of a Cranio-Corpo-Graphy. The Romberg standing test proved to be the more sensitive indicator of impaired balance, even when only slightly under the influence of alcohol. Both the degree of anterior-posterior and of lateral swaying increased according to the BAC and decreased after the end of absorption. Only lateral swaying was similarly recorded with the Unterberger test.
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