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P Benard V Burgat-Sacaze A Rico J P Braun B Eghbali 《Comptes rendus des séances de l'Académie des sciences. Série D, Sciences naturelles》1978,287(16):1437-1439
The distribution of methyl-mercury labelled with mercury-203 has been studied in Monkeys by whole body autoradiography technique. The mercury is rapidly absorbed. It is localized in all the body and mainly in well defined areas of the central nervous system. 相似文献
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Summary Experiments were performed on helically cut strips from coronary artery and saphenous vein to determine the relative influence of metabolic versus respiratory acid-base changes. Tensions were measured over a range of various HCO3
– concentrations and pCO2's. The results suggest that tension is influenced by extracellular pH and is independent of pCO2.Supported by USPHS grant No. HL24232. 相似文献
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M Baudry J P Clot V Boutroux R Michel 《Comptes rendus des séances de l'Académie des sciences. Série D, Sciences naturelles》1978,286(18):1323-1325
The rT3-binding and human serum proteins was directly studied with tracer doses of radioactive rT3. Polyacrylamide gel electrophoresis showed 125I-rT3 added to human serum was distributed among two proteins: albumin (carrying 57% of tracer rT3) and TBPA )22%). No binding was observed to TBG, protein binding T4. 相似文献
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E. A. Zeller G. S. Couper S. V. Huprikar A. M. Mellow R. R. Moody 《Cellular and molecular life sciences : CMLS》1976,32(11):1453-1454
Summary The pharmacological action of mescaline on goldfish was studied with the Bitterman-Agranoff shock-avoidance test. In short term experiments with high mescaline doses an increase in learning rates was observed. Similar results were obtained with apomorphine andl-dopa. However, when the fish were exposed to smaller mescaline doses (or to fluphenazine) for 3 days, their ability to avoid electric shock was reduced. Apparently, mescaline induced a release of dopamine which stimulated central dopaminergic systems. Subsequently, MAO destroys the liberated dopamine. Thus, the ensuing dopamine deficit appears to be responsible for the marked changes in behavior in the chronic experiment.This work was supported in part by research grants from the National Eye Institute (EY No. 00313) and the National Institute of Mental Health (MH No. 20020), and by the Sterling Morton Charitable Trust Fund. 相似文献
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Summary Arylsulfatase activity has been demonstrated in rat and human parotid and submandibular saliva indicating that oral bacteria are not the only source of salivary sulfatase activity. Activity was also observed in human sweat, tears and in snake venom.Acknowledgments. We extent appreciation to Drs.C. Dawes andK. Abe for assistance in saliva collection, to Dr.K. W. Stewart who provided fresh snake venoms and to Dr.E. T. Pritchard in whose laboratory this study was conducted. Supported by grant Nr. MT 3536 from MRC of Canada. 相似文献