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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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[Fidelity of a polymerization reaction according to the proximity to equilibrium]. [根据接近平衡的聚合反应的保真度]。
Comptes rendus des seances de l'Academie des sciences. Serie D, Sciences naturelles Pub Date : 1980-11-24
P Herbomel, J Ninio
{"title":"[Fidelity of a polymerization reaction according to the proximity to equilibrium].","authors":"P Herbomel,&nbsp;J Ninio","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>Pyrophosphorolysis, the reverse reaction of nucleotide polymerisation during replication or transcription must influence error-rates. Calculations suggest, for a wide range of reaction mechanisms, a linear dependency between pyrophosphate concentration and the ratio correct/incorrect substrate incorporation. Errors in A.T -rich regions should be particularly sensitive to changes in pyrophosphate concentration.</p>","PeriodicalId":10605,"journal":{"name":"Comptes rendus des seances de l'Academie des sciences. Serie D, Sciences naturelles","volume":"291 11","pages":"881-4"},"PeriodicalIF":0.0,"publicationDate":"1980-11-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"17228287","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
[Horizontal optokinetic nystagmus in the pigeon: role of accessory optical system]. 鸽子水平眼震:辅助光学系统的作用。
Comptes rendus des seances de l'Academie des sciences. Serie D, Sciences naturelles Pub Date : 1980-11-24
H Gioanni, J Rey, J Villalobos
{"title":"[Horizontal optokinetic nystagmus in the pigeon: role of accessory optical system].","authors":"H Gioanni,&nbsp;J Rey,&nbsp;J Villalobos","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>Some characteristics of the horizontal optokinetic nystagmus (OKN) have been studied in the pigeon using monocular and binocular stimulations. The OKN is asymmetrical, temporal to nasal stimulation eliciting a larger response than a nasal to temporal one. The role of the accessory optic system (AOS) was studied by means of unilateral or bilateral lesions of the primary relays, nuclei ectomamillaris (nEM) and superficialis synencephali (nSS). Results show the existence of a synergy between nEM and nSS on the same side and between nEM and nSS on opposite sides, whereas each nucleus has an inhibitory effect upon its contralateral homologue. Some evidence was obtained which suggests the existence of an ipsilateral retinal projection to the nEM.</p>","PeriodicalId":10605,"journal":{"name":"Comptes rendus des seances de l'Academie des sciences. Serie D, Sciences naturelles","volume":"291 11","pages":"909-12"},"PeriodicalIF":0.0,"publicationDate":"1980-11-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"17834544","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
[Harmaline tremor: activity of the interposito-rubral system and of the bulbo-ponto-reticular formation]. [电性震颤:脑间系统和球桥网状结构的活动]。
Comptes rendus des seances de l'Academie des sciences. Serie D, Sciences naturelles Pub Date : 1980-11-24
C Batini, J F Bernard, C Buisseret-Delmas, G Horcholle-Bossavit
{"title":"[Harmaline tremor: activity of the interposito-rubral system and of the bulbo-ponto-reticular formation].","authors":"C Batini,&nbsp;J F Bernard,&nbsp;C Buisseret-Delmas,&nbsp;G Horcholle-Bossavit","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>The effects of tremogenic doses of harmaline have been studied by extracellular unit recordings and 14C 2-deoxyglucose marking in two groups of cats. Harmaline sensitive neurons were found in the lateral reticular nucleus and the nucleus reticularis tegmenti pontis. The nucleus interpositus as well as the red nucleus were also found to be discharging at the tremor frequency, indicating that the cerebello-interposito-rubral system participates in harmaline tremor. In cats with unilateral sections of the inferior cerebellar peduncle, 14C 2-deoxyglucose marking demonstrated that the increased activity previously observed in those structures was a consequence of harmaline acting on the inferior olive.</p>","PeriodicalId":10605,"journal":{"name":"Comptes rendus des seances de l'Academie des sciences. Serie D, Sciences naturelles","volume":"291 11","pages":"905-7"},"PeriodicalIF":0.0,"publicationDate":"1980-11-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"17834543","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 of a cellular hybrid secreting an antibody specific for human leukocyte interferon]. [一种分泌人白细胞干扰素特异性抗体的细胞杂交体的分离]。
Comptes rendus des seances de l'Academie des sciences. Serie D, Sciences naturelles Pub Date : 1980-11-24
L Montagnier, A G Laurent, J Gruest
{"title":"[Isolation of a cellular hybrid secreting an antibody specific for human leukocyte interferon].","authors":"L Montagnier,&nbsp;A G Laurent,&nbsp;J Gruest","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>A cellular hybrid secreting a Mouse monoclonal immunoglobulin (IgG) specific of human leukocyte interferon has been obtained, following fusion of a nonsecreting variant of the myeloma P3X63 Ag8 with splenic lymphocytes from a Mouse immunized against interferon incorporated into liposomes. The antibody also recognizes human interferon made by a bacterial recombinant and a fraction of interferon made by Namalva cells. Mass production of the antibody has been achieved using ascitic growth of the hybrid in Mice.</p>","PeriodicalId":10605,"journal":{"name":"Comptes rendus des seances de l'Academie des sciences. Serie D, Sciences naturelles","volume":"291 11","pages":"893-6"},"PeriodicalIF":0.0,"publicationDate":"1980-11-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"17228288","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
[Visceral localization of 14C gentamicin in the rat after administration of a single dose]. [单次给药后14C庆大霉素在大鼠内脏的定位]。
Comptes rendus des seances de l'Academie des sciences. Serie D, Sciences naturelles Pub Date : 1980-11-24
J Fresel, J P Morin, G Devauchelle, J P Fillastre
{"title":"[Visceral localization of 14C gentamicin in the rat after administration of a single dose].","authors":"J Fresel,&nbsp;J P Morin,&nbsp;G Devauchelle,&nbsp;J P Fillastre","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>When administered intravenously to Rats, 14C Gentamicin decreased very fast in all tissues, except in kidney and cartilage. Some flexures of the small intestine contained radioactive carbon, and that was evidence for the biliary elimination of a part of the aminoglycoside. In animals with water restriction, the distribution of the antibiotic in tissues was similar to the distribution in animals with free access to water.</p>","PeriodicalId":10605,"journal":{"name":"Comptes rendus des seances de l'Academie des sciences. Serie D, Sciences naturelles","volume":"291 11","pages":"897-9"},"PeriodicalIF":0.0,"publicationDate":"1980-11-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"17834542","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
[Cytogenic study of Lophocebus albigena (Primate Catarrhini Cercopithecidae). Description of a male karyotype]. [j]灵长类猫鼻目蠓科的细胞遗传学研究。男性核型的描述]。
Comptes rendus des seances de l'Academie des sciences. Serie D, Sciences naturelles Pub Date : 1980-11-17
J M Dugoujon, F Moro, G Larrouy
{"title":"[Cytogenic study of Lophocebus albigena (Primate Catarrhini Cercopithecidae). Description of a male karyotype].","authors":"J M Dugoujon,&nbsp;F Moro,&nbsp;G Larrouy","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>GTG chromosomic banding of a male and a female Lophocebus albigena is reported. The chromosome number of the karyotypes is 2 n = 42, characterized by a pair of marked chromosomes and a mediocentric Y chromosome, similar to that of the Lophocebus aterimus.</p>","PeriodicalId":10605,"journal":{"name":"Comptes rendus des seances de l'Academie des sciences. Serie D, Sciences naturelles","volume":"291 10","pages":"821-3"},"PeriodicalIF":0.0,"publicationDate":"1980-11-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"17835593","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
[Anti-elastase of human pancreas: preparation and biological interest]. 人胰腺抗弹性酶的制备及其生物学意义。
Comptes rendus des seances de l'Academie des sciences. Serie D, Sciences naturelles Pub Date : 1980-11-17
M Rabaud, J Tribouley-Duret, F Lefebvre, C Desgranges, H Bricaud
{"title":"[Anti-elastase of human pancreas: preparation and biological interest].","authors":"M Rabaud,&nbsp;J Tribouley-Duret,&nbsp;F Lefebvre,&nbsp;C Desgranges,&nbsp;H Bricaud","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>The present paper deals with the use of a new technique in type II human pancreatic elastase studies based on the use of a reversible immune-adsorbent which provides a unique specificity. According to the type of ligand linked on activated Sepharose, the elastase or its antibody in Rabbit could be obtained, in very pure form, in a one step process. The anti-human pancreatic elastase II, which specifically inhibits the enzyme, may be used in therapy whenever the elastase-inhibitor system becomes unbalanced.</p>","PeriodicalId":10605,"journal":{"name":"Comptes rendus des seances de l'Academie des sciences. Serie D, Sciences naturelles","volume":"291 10","pages":"825-8"},"PeriodicalIF":0.0,"publicationDate":"1980-11-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"17834541","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
[Functional alterations in the retina following a 10 Gy gamma irradiation localized in the eye]. [眼部局部10gy γ射线照射后视网膜的功能改变]。
Comptes rendus des seances de l'Academie des sciences. Serie D, Sciences naturelles Pub Date : 1980-11-17
J D Bagot, D Courant, L Court
{"title":"[Functional alterations in the retina following a 10 Gy gamma irradiation localized in the eye].","authors":"J D Bagot,&nbsp;D Courant,&nbsp;L Court","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>A single-eye irradiation of 10 Gy (0.8 Gy. min-1) induces impairments of the electrical responses of the rabbit retina in dark adaptation. These are associated with reversible alteration of the photoreceptors and the preganglionic neurons and a disturbance of all the mechanisms of adaptation. Possible relationships between these functional alterations and the effects of irradiation are discussed.</p>","PeriodicalId":10605,"journal":{"name":"Comptes rendus des seances de l'Academie des sciences. Serie D, Sciences naturelles","volume":"291 10","pages":"817-20"},"PeriodicalIF":0.0,"publicationDate":"1980-11-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"17835592","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
[Parietal electrocortical rhythms in the cat: their relation to a behavior of focused attention and possible mesencephalic control through a dopaminergic pathway]. [猫的顶叶皮层电节律:它们与集中注意力的行为和可能通过多巴胺能途径进行的中脑控制的关系]。
Comptes rendus des seances de l'Academie des sciences. Serie D, Sciences naturelles Pub Date : 1980-11-03
J J Bouyer, M F Montaron, A Rougeul, P Buser
{"title":"[Parietal electrocortical rhythms in the cat: their relation to a behavior of focused attention and possible mesencephalic control through a dopaminergic pathway].","authors":"J J Bouyer,&nbsp;M F Montaron,&nbsp;A Rougeul,&nbsp;P Buser","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>In the Cat, the development of an electrocortical rhythm at 40 Hz (fast \"mu\" rhythm) is observed in the parietal cortex whenever the subject immobilizes itself in an attitude of focused attention (e.g. when watching a mouse). This rhythm, as well as the accompanying behaviour, seems to be under the control of a dopaminergic mechanism originating from the ventral tegmental mesencephalic area (cellular dopaminergic group A 10).</p>","PeriodicalId":10605,"journal":{"name":"Comptes rendus des seances de l'Academie des sciences. Serie D, Sciences naturelles","volume":"291 9","pages":"779-83"},"PeriodicalIF":0.0,"publicationDate":"1980-11-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"17834545","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
[Kinetics of the appearance of HLA-DR antigens on human alloactivated T lymphocytes and the demonstration of new antigenic determinants]. [HLA-DR抗原在人同种活化T淋巴细胞上出现的动力学和新的抗原决定因子的证明]。
Comptes rendus des seances de l'Academie des sciences. Serie D, Sciences naturelles Pub Date : 1980-11-03
E E Wollman, V Lepage, M Delima, D Fradelizi, L Degos, J Dausset
{"title":"[Kinetics of the appearance of HLA-DR antigens on human alloactivated T lymphocytes and the demonstration of new antigenic determinants].","authors":"E E Wollman,&nbsp;V Lepage,&nbsp;M Delima,&nbsp;D Fradelizi,&nbsp;L Degos,&nbsp;J Dausset","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>By studying serologically the appearance of HLA-DR determinants on T lymphocytes activated by a mixed lymphocyte culture, we have been able to demonstrate the existence of a new class of antigenic determinants distinct from classical HLA-DR antigens. Indeed, some monospecific anti-DR sera were cytotoxic from some alloactivated T cells, though not directed against their HLA-DR specificity. The absorption of these anti-sera on B lymphocytes bearing the HLA-DR antigen against which they were directed, did not remove their reactivity on alloactivated T lymphocytes. The absorption of the same anti-sera on activated T lymphocytes did not affect their anti-DR reactivity. This study shows the existence of new antigenic determinants expressed by T lymphocytes during their activation: alloactivated T lymphocyte antigens (AATL).</p>","PeriodicalId":10605,"journal":{"name":"Comptes rendus des seances de l'Academie des sciences. Serie D, Sciences naturelles","volume":"291 9","pages":"757-61"},"PeriodicalIF":0.0,"publicationDate":"1980-11-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"17228289","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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