[Biochemical changes in the central nervous system of animals with experimental allergic encephalomyelitis].
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Biomedical subjects
Publications and source records attributed to T Negru.
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Out of a great number of cases with chronic psychoorganic syndrome studied by us, we have selected, for investigation, a number of 100 cases which presented common symptomatology: a psychosyndrome showing, by a large number of manifestations such as asthenia, fatigability, adynamia with various degrees of intensity building up to reaction latency, diminution or even absence of initiative, basic-negativism, tendency to depression with feeling of futility, anxiety, lowered affective tonus. The intellectual activity is largely diminished, the stream of ideas is poor, and there is a limited domain of preoccupations. All these symptoms alongside with somatic, muscular, renal, respiratory, digestive and cardiovascular disorders have led us to the hypothesis of chronic deficiency of the hormones in the adrenal glands. The adrenal glands have been studied by indirect exploration of the hydroelectrolytic metabolism of the peripheral blood, the Thorn test and the Robinson-Power-Kepler test. For the exploration of the glucocorticoids, a basal test has been used such as the 17-hydroxycorticoid test, which measures cortisol elimination, or as the 11-desoxycorticosteroids and metabolites, or the colorimetric Porter-Silber method. Among the dynamic tests, we have used stimulating tests, the ACTH test (synthetic Synachtene), which measures cortisolemia and the 17-urinary corticosteroids, faster and easier than the Thorn test. In order to assess androgens, we have used the ACTH deposit dynamic test (Synachtene retard), which in the case of normal function of the adrenal glands, in 24 hours, doubles the elimination of 17-hydrocorticosteroids, 17-Ketosteroids, D. H. E. A., pregnandiol, pregnantriol.(ABSTRACT TRUNCATED AT 250 WORDS)
Changes of the redox balance are reflected at the blood level in old agers--chronically intoxicated with alcohol--presenting degenerative psycho-organic syndromes (DPOS). The parameters investigated were lipid peroxidation reduced glutathione and the total SH groups. The changes of the antioxidant enzymatic system expressed by the activity of superoxide dysmutase, of glutathione peroxidase and of catalase were also followed up. It was observed that compared with the control group the lipid peroxides increased by 70.69% and the blood concentration of G-SH and of the total SH groups decreased by 46.7% and 24.76%, respectively. Likewise enzymes such as GPx and CAT presented increases of 70.4% and respectively 68.3% associated with a decrease of 23.9% of SOD activity.
The raport focuses on investigation of a sample of old people, mainly in their eighties, as against a control group of healthy subjects, aged between 25 and 40. In order to investigate the immunologic response the research has been carried on along the following lines. to show self Ab antinuclear (AAN), antimitochondrial (AM) and antismoth muscle (ASM), by using indirect immunofluorescence; to study alteration of serum immunoglobulins by using IDR; to study alteration of serum concentration of C3 fraction in the complement by using IDR; to determine immune complexes by using Haskova method; to investigate IR through R rosetting method. Immunologic reactivity (IR) disturbance was found, with respect to alteration of immunoglobulin ratio IgA, IgG, IgM vere slightly diminished. Self antibodies were present to a percentage of 17% as predominant of ASM, AM and AAN in decreasing order. Increase in C3 associated with increase in immune complexes could account for high incidence of cardio-vascular complications. Decline in IR is shown through the decrease in T lymphocytes where Ts is more markedly decreased as against decreased Ts. The results imbalance between stimulating activated cells and suppressive controlling cells. IR alteration could account for degenerative pathology in the subjects, namely, ATS, cardiovascular diseases, senility, pseudobulb syndrome, schizoaffective psychosis.
The clinical and experimental investigations of alcoholic liver disease, have proved that hepatocytes injury is associated with immunologic abnormalities, which can be one of the sources of these injuries. The acetaldehyde, the main ethanol metabolite modify liver cytosolic proteins and form new antigens. Thus acetaldehyde induces the synthesis of auto-antibodies. Some hypotheses maintain the autoimmune pathogenesis of these diseases. Research was carried out on some patient groups admitted in the alcohol addiction department of the Neurology and Psychiatry hospital "Professor Gh. Marinescu". We have investigated the alcohol depending individuals with various degrees of hepatic injuries. Four groups have been studied: the control group, the alcohol depending patients without liver disease, the patients with alcoholic hepatitis, the group with alcoholic cirrhosis. In order to investigate the immunologic response the research has been carried on, along the following lines: serum immunoglobulins level, serum C3 level, serum protein C reactive level by using IDR, serum circulating immune complexes by Hakova method, auto-antibodies (antinuclear AAN, antimitochondria AM and antismoothmuscle ASM) by using indirect immunofluorescence, T lymphocytes by E rosetting and lymphocytes by direct immuno-fluorescence. Clinical and experimental study of the alcoholic liver has shown that destruction of hepatocytes is accompanied by several immunological events.