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1.
Summary The quantity of oxytocin in the cerebrospinal fluid is decreased by brain atrophy and infantile brain damage, not injured by multiple sclerosis but increased by meningitis, sciatica and drug controlled convulsions. Immediately after a seizure, the oxytocin level is very strong raised.

Diese Arbeit wurde mit Mitteln des Ministeriums für Wissenschaft und Technik der DDR durchgeführt.  相似文献   

2.
Summary The oxydative desamination of amino acids in the liver of acute uremic rats is increased. Simultaneously the citric acid cycle in the liver of these rats is stimulated. It is suggested that the ketone-acids formed by the increased amino acid degradation are removed by the activated citric acid cycle.

5. Mitteilung über Untersuchungen der Rest-N-fraktionen bei Urämie

Die vorliegende Arbeit wurde mit Unterstützung des Schweizerischen Nationalfonds durchgeführt.  相似文献   

3.
Summary The O2-consumption of liver tissue of male rats of different ages during the first 10 days at an altitude of 3540 m was significantly decreased on the 5th and 7th day. The deviation from the controls at ground level was – 19% in 40-day-old and – 30% in 11-month-old male rats.

Auslandsstipendiat der Schweizerischen Regierung (1963–64). Für die Überlassung eines Laboratoriums und der Apparate möchte ich Herrn Prof.A. v. Muralt auch an dieser Stelle danken.

Die Arbeit wurde unterstützt von der Max-Planck-Gesellschaft zur Förderung der Wissenschaften, Deutschland. Ein Teil der Versuchstiere wurde uns freundlicherweise von der Hoffmann-La Roche AG, Basel, durch Herrn Dr.Loosli, Füllinsdorf (BL) zur Verfügung gestellt.  相似文献   

4.
Summary During the first wave of parenchymal liver regeneration in adult rats after partial hepatectomy, the cellular synthesis and migration of RNA and the metabolism of protein were studied by autoradiography following an injection of3H-cytidine or3H-l-phenylalanine and double injections of 1 of these precursors +3H-thymidine. The following results were obtained: the synthesis and migration of RNA and the metabolism of protein are enhanced under these conditions of proliferation. In spite of this, the relation of metabolic activity in nucleolus, karyoplasm and cytoplasm remains constant. By double injection techniques it is proved that no differences exist in migration of RNA into the cytoplasm and cytoplasmic protein synthesis between cells with or without DNA synthesizing nuclei.

Mit Unterstützung der Deutschen Forschungsgemeinschaft.  相似文献   

5.
Summary Focal proliferations of adventitial cells of small blood vessels in the rat brain were found within 6 weeks after i.p. injection of methyl-nitroso-urea. The results of electron microscopic examination suggest the preneoplastic nature of the changes.

FrauK. Wiegand danken wir für wertvolle technische Mitarbeit.  相似文献   

6.
Summary By infusing doubly labelled conjugates into the duodenum or into a mesenteric vein it could be demonstrated that DHEA-sulfate passes the intestinal wall as well as the liver nearly without hydrolysis. However, most of the glucuronoside is hydrolysed in the intestine and reconjugated as sulfate.

Die vorliegende Arbeit wurde mit Unterstützung der Deutschen Forschungsgemeinschaft durchgeführt.  相似文献   

7.
Summary After pinealectomy adult hypoactive rats show an increased exploratory behavior, whereas adult hyperactive rats show no significant behavioral change. These data are discussed in relation to brain serotonin content.

Durchgeführt im Rahmen des DFG-Schwerpunktprogrammes Neuroendokrinologie (Vo 135/4).

Frau Dr. D. Freund, Mainz, danke ich für die Erlaubnis zur Benutzung der Open-Field Anlage, Frau H. Untiedt für technische Hilfe bei der Pinealektomie.  相似文献   

8.
Summary Alkylation of RNA from brain, liver and kidney in rats after application of14C-methylnitrosourea and 1-14C-ethylnitrosourea was investigated. After administration of14C-methylnitrosourea the amount of 7-methylguanine in the RNA of brain and liver is about the same. Analogic experiments using 1-14C-ethylnitrosourea showed no alkylation of the RNA in the organs investigated. This leads to the conclusion that there is no direct correlation between the alkylation of RNA and organotropic carcinogenic activity of the compounds studied.

Herrn Professor Dr.O. Eichler zum 70. Geburtstag gewidmet.  相似文献   

9.
Summary Rats treated by i.p. injections of a homologous thymus are protected, probably by greater reactivity, against the toxic and carcinogenic influence of diethylnitrosamine on the liver, effects that increase with time in untreated controls, long after cessation of drug administration, as is shown by the greater extent of degeneration in animals killed at longer than at shorter intervals.

Die Arbeit wurde durch die Ludwig-Boltzmann-Gesellschaft zur Förderung der wissenschaftlichen Forschung in Österreich unterstützt.  相似文献   

10.
Summary Following 2/3 hepatectomy + CCl4, the labelling- (3H-thymidine) and mitosis-index of liver epithelia increases 8 h later than after an unique 2/3 hepatectomy, and the peak of compensatory regeneration is reached 16 h later. Then the curve declines and 48 h post operationem reparative regeneration due to CCl4 necrosises starts.

Mit Unterstützung der Deutschen Forschungsgemeinschaft.  相似文献   

11.
Summary There is a 24 h periodicity of the rat liver tissue respiration (Qo2) with maximal values at about 07.30 h and minimal values at about 17.00 h.

Auslandsstipendiat der Schweizerischen Regierung (1963/64).

Die Arbeit wurde unterstützt von der Max-Planck-Gesellschaft zur Förderung der Wissenschaften, Deutschland.  相似文献   

12.
Summary Macroscopic anatomical investigations on the brain of the Blue Whale (Sibbaldus musculus Linnaeus, total brain weight without dura: 6500 g), show that this species of cetacea has a degree of cerebralization between that of the primitive Southern Right Whale (Eubalaena australis Desmoulins) and that of the Humpback Whale (Megaptera novaeangliae Borowski). Of the Balaenopteridae examined to date, the Blue Whale has the lowest cerebralization.

Durchgeführt mit Unterstützung des Schweizerischen Nationalfonds zur Förderung der wissenschaftlichen Forschung (Gesuch Nr. 3883/1966).  相似文献   

13.
Summary Butazolidin in a concentration of 10 mg% does not inhibitin vitro the activity of rat liver monoamine- and cytochromoxydase.

Die Untersuchungen wurden im Pharmakologischen Institut der Universität des Saarlandes, Homburg, durchgeführt.  相似文献   

14.
Summary The proportion of purines and pyrimidines in the DNA of the Ehrlich mouse ascites carcinoma is examined and compared with the base proportion of the DNA from liver and kidney of the normal mouse. The following findings were obtained: The DNA of the ascites tumor contains more guanine and less cytosine and thymine than the DNA of the normal mouse. For guanine this difference is statistically significant. The changed base compound is discussed with regard to the changed growing rate in tumors and the altered chromosome structure in the Ehrlich ascites carcinoma.

Durchgeführt mit Unterstützung der Deutschen Forschungsgemeinschaft.  相似文献   

15.
Summary Assays of 8 synthetic analogues of human calcitonin in rats showed that their hypocalcaemic activity was drastically reduced by deletion of the C-terminal amide group, chain-shortening or opening of the disulphide ring, but unaffected or enhanced by modification of the N-terminal amino group.

II. vgl.R. Maier, B. Kamber, B. Riniker andW. Rittel, Hormon. Metab. Res.7, 511 (1975).

Die hier verwendete, abgekürzte Schreibweise für Peptide folgt den Empfehlungen der IUPAC-IUB Kommission für Biochemische Nomenklatur, J.B.C.247, 977 (1972). Weitere Abkürzungen: HCT, Human-Calcitonin; PCT, Schweinecalcitonin; Bmp, -Mercaptopropionsäure (Desaminocystein); NMet, Normethionin (S-Methylcystein); -OMe, Methylester.  相似文献   

16.
Summary (1) The increased tissue catecholamine level of the thiamine deficient rat was shown in the atrium, the ventricle, the brain cortex and in the spleen but not in the brain stem and the adrenal gland. (2) The increased response to tyramine of the thiamine deficient heart is most probably due to the high catecholamine level caused by thiamine deficiency. (3) The increased catecholamine content in the thiamine deficient rat does not result from the increased pyruvic acid.

Herrn Professor Dr.F. Th. von Brücke zum 60. Geburtstag im Januar 1968 gewidmet.  相似文献   

17.
Summary The effect of 2 fixatives, (1) s-Collidin buffered OsO4, (2) phosphate buffered OsO4, on the liver cell was studied by morphometric analysis. After fixation with solution 2, large areas of smooth endoplasmic reticulum were covered by electron-opaque deposits of glycogen. No such masking was noticed by using solution 1. Other cell organelles showed no significant differences in their relative volumes. By using fixative solution 2, decrease in glycogen can simulate relative volume increase of the smooth endoplasmic reticulum.

Wesentliche Teile der vorliegenden Arbeit wurden von Frl. F.Stockmann der Medizinischen Fakultät der Universität Basel als Inaugural-Dissertation vorgelegt.  相似文献   

18.
Summary By autoradiographic studies with H3-thymidine it is demonstrated that the percentage of labelled nuclei is very low in the anterior pituitary of normal untreated rats and of rats 14 days after thyreoidectomy. Following castration, however, a marked increase of DNA-synthesizing cells occurs as well as an increase of mitotic figures.

Mit Unterstützung durch die Deutsche Forschungsgemeinschaft und das Bundesministerium für Wissenschaftliche Forschung.  相似文献   

19.
Summary Weightless amounts of radioactive test-mixtures are run from the same starting point as the compounds to investigate while checked independently. It is shown that this allows a dependable identification even in cases where the technique of inactive parallel running test-mixtures fails completely.

Für die finanzielle Unterstützung dieser Arbeiten danken wir dem Bundesministerium für Atomenergie und Wasserwirtschaft.  相似文献   

20.
Nachweis von organspezifischen Antikörpern   总被引:1,自引:0,他引:1  
Summary Using a new nephelometric method, species-specific and organ-specific antibodies have been demonstrated. By means of the absorption technic organ-specific components of species-specific antibodies of high specificity have been determined in the serum of rabbits sensitized with various rat organs (heart, liver, kidney, tumor).

Die Arbeit wurde mit Hilfe des Schweizerischen Nationalfonds zur Förderung der wissenschaftlichen Forschung durchgeführt.  相似文献   

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