SUMMARY The anti‐manic, anti‐depressive and prophylactic effects of carbamazepine (CAZP, Tegretol‐Ciba Geigy) on the endogenous mani‐depressive psychosis (MDP) were investigated on 50 MDP cases. The dosage of the drug ranged from 200 to 1,200 mg daily (usually 400 to 600 mg). The effect of CAZP on 33 manic states was: “markedly effective” seven (23%), “effective” six (19%), “slightly effective” five (16%), “ineffective” 13 (42%), whereas the effect on six depressive states was: “markedly effective” one and “ineffective” five. No definite relationship was found between the kinds of drugs in combination use and the effect of CAZP. No significant difference of the CAZP effect was found in the four patient groups with different age of onset of the illness, nor among the “continuous,”“frequent” and “periodic” type cases. The prophylactic effect of CAZP on 27 cases in which the assessment of the effect on the manic episode was possible was: “markedly effective” 13 (48%), “effective” seven (26%) and “ineffective” seven (26%), whereas that for depressive episode was: 12 (45%), two (7%) and 13 (48%), and the result of the general assessment on each patient was 14 (43%), 10 (30%) and nine (27%), respectively. The kinds of drugs in combination use, age of onset and type of course of the illness did not have any influence on the prophylactic effect of CAZP. The prophylactic effect on MDP of CAZP did not parallel that of lithium salt, but CAZP may be effective on cases which did not respond to lithium and vice versa. Side‐effects such as ataxia, dizziness, exanthema, drowsiness and headache were observed in five of the cases, and the CAZP was discontinued in four of them. The mechanism of effectiveness of the CAZP on MDP was discussed.
Japanese teachers are mentally and physically burdened with various work stressors. This cross-sectional study examined the relationship between depressive symptoms and perceived individual level occupational stress including role problems among Japanese schoolteachers. This study included 1,006 teachers working in public schools in a Japanese city. The Japanese version of Zung’s Self-Rating Depression Scale (SDS) was used to evaluate depressive symptoms, and the Generic Job Stress Questionnaire was used to evaluate occupational stress and three measures of social support. Subjects with SDS scores of more than 50 were categorized into the “depressive group.” We examined the relationship between depressive symptoms and perceived individual level occupational stress using multiple logistic regression analyses. A total of 202 (20.1%) teachers belonged to the depressive group. We found that high role ambiguity, high role conflict, high quantitative workload, and low social support from family or friends were significantly related to depressive symptoms. To moderate role ambiguity and role conflict experienced by teachers, it is necessary to clarify the priority order of teachers’ work. Furthermore, it is necessary to reduce workload by focusing on the content of teachers’ work and the setting of education itself. Focusing on these elements will reduce teachers’ depressive symptoms.
The vitamin B12 concentration of the dried cells of Aphanizomenon flos-aquae was determined by both microbiological method with Lactobacillus delbrueckeii ATCC7830 and chemiluminescence method with intrinsic factor. The Aphanizomenon cells contained 616.3 +/- 30.3 micro g (n = 4) of vitamin B12 per 100 g of the dried cells by the microbiological method. The values determined with the chemiluminescence method, however, were only about 5.3% of the values determined by the microbiological method. A corrinoid-compound was purified from the dried cells and characterized. The purified corrinoid-compound was identified as pseudovitamin B12 (an inactive corrinoid-compound for humans) by silica gel 60 TLC, C18 reversed-phase HPLC, ultraviolet-visible spectroscopy, and 1H NMR spectroscopy. The results suggest that the Aphanizomenon cells are not suitable for use as a vitamin B12 source, especially in vegans.
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