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Comptes rendus des seances de l'Academie des sciences. Serie D, Sciences naturelles最新文献

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[Stress responses of the ACTH-corticosterone and LH-testosterone systems in male rats given naloxone]. [纳洛酮对雄性大鼠acth -皮质酮和lh -睾酮系统的应激反应]。
Comptes rendus des seances de l'Academie des sciences. Serie D, Sciences naturelles Pub Date : 1980-09-15
G Ixart, A Szafarczyk, F Malaval, J Nouguier-Soulé, I Assenmacher
{"title":"[Stress responses of the ACTH-corticosterone and LH-testosterone systems in male rats given naloxone].","authors":"G Ixart,&nbsp;A Szafarczyk,&nbsp;F Malaval,&nbsp;J Nouguier-Soulé,&nbsp;I Assenmacher","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>A single injection of naloxone (1 mg/kg s. c.) increased plasma baseline levels by 6 times for ACTH, 17 times for corticosterone, 3 times for LH and 2 times for testosterone. A concomitant ether-stress induced a further 6 fold increment in ACTH and an additional 2 fold increment in corticosterone, both hormones attaining their similar levels to those after ether-stress alone. On the other hand no further increment was observed for LH and testosterone, which actually were more stimulated by naloxone than by stress alone. The tonic inhibition exerted by endogenous opiates on ACTH and LH appears, therefore, to interfere with stress in a different way for the two neuroendocrine systems considered.</p>","PeriodicalId":10605,"journal":{"name":"Comptes rendus des seances de l'Academie des sciences. Serie D, Sciences naturelles","volume":"291 2","pages":"265-70"},"PeriodicalIF":0.0,"publicationDate":"1980-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"17316908","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
[Cellular regulation of the expression of i and I antigens during the in vitro differentiation of BFU-E]. [BFU-E体外分化过程中i和i抗原表达的细胞调控]。
Comptes rendus des seances de l'Academie des sciences. Serie D, Sciences naturelles Pub Date : 1980-09-15
H Rochant, U Testa, W Vainchenker, A Henri, M Titeux, H Tonthat, F Feuilhade
{"title":"[Cellular regulation of the expression of i and I antigens during the in vitro differentiation of BFU-E].","authors":"H Rochant,&nbsp;U Testa,&nbsp;W Vainchenker,&nbsp;A Henri,&nbsp;M Titeux,&nbsp;H Tonthat,&nbsp;F Feuilhade","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>Burst forming units (BFU-E) from the blood of eight normal adults were grown in methylcellulose culture. Follow up of i and I antigens detected by an indirect immunofluorescence technique from the 9th to the 14th day of culture revealed that i antigen expression diminished while maturation proceeded. On the contrary 1 antigen expression increased meanwhile. Nevertheless, in addition to this maturation process, expression of i antigen must be determined by a regulatory mechanism operating during erythroid stem cell differentiation since a large proportion of immature erythroblasts at the 10th day of culture do not express i antigen.</p>","PeriodicalId":10605,"journal":{"name":"Comptes rendus des seances de l'Academie des sciences. Serie D, Sciences naturelles","volume":"291 2","pages":"229-32"},"PeriodicalIF":0.0,"publicationDate":"1980-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"17828136","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
[General effects of cytosine arabinoside on the embryo of reptiles]. [阿拉伯糖胞嘧啶对爬行动物胚胎的一般影响]。
Comptes rendus des seances de l'Academie des sciences. Serie D, Sciences naturelles Pub Date : 1980-09-15
A Raynaud
{"title":"[General effects of cytosine arabinoside on the embryo of reptiles].","authors":"A Raynaud","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>Administered to eggs of Reptilia (Lacerta viridis and Anguis fragilis), cytosine-arabinoside induced numerous embryonic malformations, among which microphthalmia and limb deformities. On the other hand this drug delayed the retrogression of the apical ridge of the limb buds in Anguis fragilis.</p>","PeriodicalId":10605,"journal":{"name":"Comptes rendus des seances de l'Academie des sciences. Serie D, Sciences naturelles","volume":"291 2","pages":"253-5"},"PeriodicalIF":0.0,"publicationDate":"1980-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"17828791","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
[Seasonal variations in the nyctohemeral rhythm of plasma testosterone in the European badger Meles meles L]. [欧洲獾血浆睾酮昼夜节律的季节变化]。
Comptes rendus des seances de l'Academie des sciences. Serie D, Sciences naturelles Pub Date : 1980-09-15
M C Audy
{"title":"[Seasonal variations in the nyctohemeral rhythm of plasma testosterone in the European badger Meles meles L].","authors":"M C Audy","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>In the badger a seasonal sexual rhythm of the plasma testosterone is observed. There is also a nycthemeral rhythm of the testosterone secretion; during the regressed period of the testis this rhythm is bimodal with testosterone peaks during the light phase of the day; during the active period and \"activity rhythm\" with many transitorys peaks during the dark phase is added.</p>","PeriodicalId":10605,"journal":{"name":"Comptes rendus des seances de l'Academie des sciences. Serie D, Sciences naturelles","volume":"291 2","pages":"291-4"},"PeriodicalIF":0.0,"publicationDate":"1980-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"17828794","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
[Augmentation of HL-A A9 antigen in malignant melanoma, principally in metastatic or recurrent forms. Apropos of 105 cases of melanoma of which 34 were serious forms]. hl - A9抗原在恶性黑色素瘤中的增强，主要是转移或复发形式。105例黑色素瘤，其中重度34例。
Comptes rendus des seances de l'Academie des sciences. Serie D, Sciences naturelles Pub Date : 1980-09-15
B Cavelier, M Daveau, D Gilbert, M Fontaine, J P Cesarini, B Delpech
{"title":"[Augmentation of HL-A A9 antigen in malignant melanoma, principally in metastatic or recurrent forms. Apropos of 105 cases of melanoma of which 34 were serious forms].","authors":"B Cavelier,&nbsp;M Daveau,&nbsp;D Gilbert,&nbsp;M Fontaine,&nbsp;J P Cesarini,&nbsp;B Delpech","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>HLA-A and B phenotypes of 105 patients suffering from malignant melanomas were determined, with special regard for metastatic form or relapse. A highly significant increase of the HLA-A9 antigen is seen (X2 = 17.47); such data had already been shown by van Wijek [2], but other authors did not find this abnormality when studying melanomas whose histologic form was not specified.</p>","PeriodicalId":10605,"journal":{"name":"Comptes rendus des seances de l'Academie des sciences. Serie D, Sciences naturelles","volume":"291 2","pages":"241-3"},"PeriodicalIF":0.0,"publicationDate":"1980-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"17828138","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
[Comparison of the effects of concanavalin A on cell growth and the transport of 3-O-methylglucose in chick embryo fibroblasts]. 刀豆蛋白A对鸡胚成纤维细胞生长和3- o -甲基葡萄糖转运影响的比较
Comptes rendus des seances de l'Academie des sciences. Serie D, Sciences naturelles Pub Date : 1980-09-15
B Bernard, M Aubery, R Bourrillon
{"title":"[Comparison of the effects of concanavalin A on cell growth and the transport of 3-O-methylglucose in chick embryo fibroblasts].","authors":"B Bernard,&nbsp;M Aubery,&nbsp;R Bourrillon","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>The proliferative capacity of Chick embryo fibroblasts was modified by Con A treatment. Con A decreased the growth of fibroblasts from young embryos (8 days), whereas the lectin stimulated the growth of fibroblasts from older embryos (16 days). This differential effect of Con A did not result from changes in cellular permeability to thymidine, but rather from Con A induced modifications of hexose transport. Changes in hexose transport would cause, as a response, parallel modifications in glycolysis and hence energy charge, which would alter proliferative capacity.</p>","PeriodicalId":10605,"journal":{"name":"Comptes rendus des seances de l'Academie des sciences. Serie D, Sciences naturelles","volume":"291 2","pages":"295-8"},"PeriodicalIF":0.0,"publicationDate":"1980-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"17828795","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
[Isolation and culture of human Kupffer cells]. [人类Kupffer细胞的分离和培养]。
Comptes rendus des seances de l'Academie des sciences. Serie D, Sciences naturelles Pub Date : 1980-09-15
A Kirn, A M Steffan, A Bingen, J Cinqualbre, J L Gendrault
{"title":"[Isolation and culture of human Kupffer cells].","authors":"A Kirn,&nbsp;A M Steffan,&nbsp;A Bingen,&nbsp;J Cinqualbre,&nbsp;J L Gendrault","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>The dissociation of human adult liver parenchyma by collagenase followed by cell separation with centrifugal elutriation allows the Kupffer cells to be isolated. These cells, which may be maintained in culture, retain their main morphological and functional features.</p>","PeriodicalId":10605,"journal":{"name":"Comptes rendus des seances de l'Academie des sciences. Serie D, Sciences naturelles","volume":"291 2","pages":"249-51"},"PeriodicalIF":0.0,"publicationDate":"1980-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"17828790","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
[Increase in local cerebral glucose consumption in the choroid plexus during slow wave sleep in the cat]. [猫慢波睡眠时脉络膜丛局部脑葡萄糖消耗增加]。
Comptes rendus des seances de l'Academie des sciences. Serie D, Sciences naturelles Pub Date : 1980-07-07
P Bobillier, S Seguin, F Petitjean, C Buda, D Salvert, M Janin, G Chouvet, C Souchier, M Jouvet
{"title":"[Increase in local cerebral glucose consumption in the choroid plexus during slow wave sleep in the cat].","authors":"P Bobillier,&nbsp;S Seguin,&nbsp;F Petitjean,&nbsp;C Buda,&nbsp;D Salvert,&nbsp;M Janin,&nbsp;G Chouvet,&nbsp;C Souchier,&nbsp;M Jouvet","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>The local cerebral glucose utilization was measured by the 14C deoxyglucose method during spontaneous periods of waking or sleeping in the free-moving Cat. During slow wave sleep there was a 49% increased glucose utilization in choroïd plexuses.</p>","PeriodicalId":10605,"journal":{"name":"Comptes rendus des seances de l'Academie des sciences. Serie D, Sciences naturelles","volume":"291 1","pages":"91-6"},"PeriodicalIF":0.0,"publicationDate":"1980-07-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"17826652","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
[Intracellular recordings of the multiple innervation of Purkinje cells by climbing fibers in the cerebellum of the developing rat]. [发育中的大鼠小脑攀爬纤维对浦肯野细胞多神经支配的细胞内记录]。
Comptes rendus des seances de l'Academie des sciences. Serie D, Sciences naturelles Pub Date : 1980-07-07
J Mariani, J P Changeux
{"title":"[Intracellular recordings of the multiple innervation of Purkinje cells by climbing fibers in the cerebellum of the developing rat].","authors":"J Mariani,&nbsp;J P Changeux","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>Intracellular recordings of postsynaptic potentials evoked in cerebellar Purkinje cells (PCs) by activation of the climbing fibers (CFs) have been obtained from 3 to 15 day-old Rats. The data presented confirm the multiple innervation of PCs by CFs on postnatal days 8-9, and demonstrate its existence at earlier stage (from day 3). The evolution of the precentage of multinnervated PCs and of the mean number of CFs collaterals per PC was followed until the monoinnervation was established on day 15.</p>","PeriodicalId":10605,"journal":{"name":"Comptes rendus des seances de l'Academie des sciences. Serie D, Sciences naturelles","volume":"291 1","pages":"97-100"},"PeriodicalIF":0.0,"publicationDate":"1980-07-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"17826653","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
[Reorganisation of thyroid follicular cells in culture. Effect of collagen on the orientation of cell polarity]. 甲状腺滤泡细胞在培养中的重组。胶原蛋白对细胞极性取向的影响。
Comptes rendus des seances de l'Academie des sciences. Serie D, Sciences naturelles Pub Date : 1980-07-07
M Chambard, J Gabrion, J Mauchamp
{"title":"[Reorganisation of thyroid follicular cells in culture. Effect of collagen on the orientation of cell polarity].","authors":"M Chambard,&nbsp;J Gabrion,&nbsp;J Mauchamp","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>In contact with a collagen gel, thyroid follicular cells form a basal pole. A monolayer, with the apical side facing the culture medium is formed when cells are seeded on a collagen layer. In contrast cells reorganize into follicle-like structures when they are embedded in the collagen gel. If vesicles which have their apical pole in contact with the culture medium are embedded in the gel, collagen-cell interaction induced the inversion of cell polarity giving follicular structures. In addition after being overlaid with a collagen layer, cells forming a monolayer reorgnaize into follicles. The apical pole is formed on the free surface of the monolayer or on the internal side of structures embedded in collagen which differentiate into follicles.</p>","PeriodicalId":10605,"journal":{"name":"Comptes rendus des seances de l'Academie des sciences. Serie D, Sciences naturelles","volume":"291 1","pages":"79-81"},"PeriodicalIF":0.0,"publicationDate":"1980-07-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"17826650","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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