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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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[Role of a free-living amoeba from water, Acanthamoaba castellani, in the transport of naked or enveloped animal viruses]. [水中的一种自由生活的变形虫，棘阿米巴，在运输裸露的或包裹的动物病毒中的作用]。
Comptes rendus des seances de l'Academie des sciences. Serie D, Sciences naturelles Pub Date : 1980-10-20
D Baron, C Danglot, R Vilaginés
{"title":"[Role of a free-living amoeba from water, Acanthamoaba castellani, in the transport of naked or enveloped animal viruses].","authors":"D Baron,&nbsp;C Danglot,&nbsp;R Vilaginés","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>The trophozoïts of Acanthamoeba castellanii are unable to adsorb poliovirus or vesicular stomatitis Virus. After encystment in medium containing respectively 5.4 x 10(8) and 3 x 10(9) P.F.U./ml cysts did not contain Viruses. These data do not agree with a current hypothesis by which water's free Amoeba could carry animal Viruses.</p>","PeriodicalId":10605,"journal":{"name":"Comptes rendus des seances de l'Academie des sciences. Serie D, Sciences naturelles","volume":"291 7","pages":"629-32"},"PeriodicalIF":0.0,"publicationDate":"1980-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"17320189","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
[A thermosensitive inhibitor of the replication of polyomavirus, an extract from BHK2I cells transformed by the Tsa mutant of this virus]. [一种多瘤病毒复制的热敏抑制剂，从该病毒的Tsa突变体转化的BHK2I细胞中提取]。
Comptes rendus des seances de l'Academie des sciences. Serie D, Sciences naturelles Pub Date : 1980-10-20
R Cramer, G Meyer, M Loche, M Robert-Gero
{"title":"[A thermosensitive inhibitor of the replication of polyomavirus, an extract from BHK2I cells transformed by the Tsa mutant of this virus].","authors":"R Cramer,&nbsp;G Meyer,&nbsp;M Loche,&nbsp;M Robert-Gero","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>BHK21 cells transformed by wild type or Ts3 mutant polyoma virus contain an inhibitor of polyoma virus replication when grown at permissive (36 degrees C) as well as non-permissive temperature (39 +/- 0.5 degrees C). Cells transformed by the Tsa mutant contain the inhibitor at the permissive but not at the non-permissive temperature. The inhibitor reappears in the latter cells however, upon shift from the non-permissive to the permissive temperature. If a reversible protein inhibitor (methionyl-adenylate, reversible inhibitor of the aminoacyl-t-RNA synthetase) is applied during the temperature shift experiments, the inhibitor does not reappear indicating that new protein synthesis is required for the recovery of its activity.</p>","PeriodicalId":10605,"journal":{"name":"Comptes rendus des seances de l'Academie des sciences. Serie D, Sciences naturelles","volume":"291 7","pages":"633-6"},"PeriodicalIF":0.0,"publicationDate":"1980-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"17320191","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
[Role of acetylglutamate in the stimulation of citrullinogenesis by glucagon]. [乙酰谷氨酸在胰高血糖素刺激瓜氨酸生成中的作用]。
Comptes rendus des seances de l'Academie des sciences. Serie D, Sciences naturelles Pub Date : 1980-10-20
L Cathelineau, D Rabier, F Petit, P Kamoun
{"title":"[Role of acetylglutamate in the stimulation of citrullinogenesis by glucagon].","authors":"L Cathelineau,&nbsp;D Rabier,&nbsp;F Petit,&nbsp;P Kamoun","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>Acute glucagon treatment of Rats has been found to increase in liver the intramitochondrial concentration of acetylglutamate which is an activator of carbamylphosphate synthetase l. A part of the stimulation of citrulline formation by glucagon is certainly related to this increase of acetylglutamate concentrations.</p>","PeriodicalId":10605,"journal":{"name":"Comptes rendus des seances de l'Academie des sciences. Serie D, Sciences naturelles","volume":"291 7","pages":"625-7"},"PeriodicalIF":0.0,"publicationDate":"1980-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"17832612","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
[Prolongation of the duration of motility and fertilizing ability of rainbow trout spermatozoa by the addition of theophylline to the dilution medium]. [通过在稀释培养基中添加茶碱延长虹鳟鱼精子的运动时间和受精能力]。
Comptes rendus des seances de l'Academie des sciences. Serie D, Sciences naturelles Pub Date : 1980-10-20
R Billard
{"title":"[Prolongation of the duration of motility and fertilizing ability of rainbow trout spermatozoa by the addition of theophylline to the dilution medium].","authors":"R Billard","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>After rainbow Trout sperm were diluted in 0.01 and 0.001 M theophylline media, motility and fertilizing ability were prolonged as compared to the control media without theophylline. However, the motility observed was lower and of a different type than normal motility. This suggests that other factors besides cyclic nucleotides intervene in the motility of Trout spermatozoa.</p>","PeriodicalId":10605,"journal":{"name":"Comptes rendus des seances de l'Academie des sciences. Serie D, Sciences naturelles","volume":"291 7","pages":"649-52"},"PeriodicalIF":0.0,"publicationDate":"1980-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"17832613","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
[Enzymatic activities in the liver, and muscle nucleic acids, in swine receiving an unbalanced diet with an excess of methionine for 100 days]. [饲喂过量蛋氨酸100天不平衡饲粮的猪肝脏和肌肉核酸中的酶活性]。
Comptes rendus des seances de l'Academie des sciences. Serie D, Sciences naturelles Pub Date : 1980-10-13
D Fau, B Delhomme, D Bourdon, A Rerat
{"title":"[Enzymatic activities in the liver, and muscle nucleic acids, in swine receiving an unbalanced diet with an excess of methionine for 100 days].","authors":"D Fau,&nbsp;B Delhomme,&nbsp;D Bourdon,&nbsp;A Rerat","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>Twelve growing Swine were fed an 18% protein diet (Maize and Soja bean) for one hundred days containing either 0,6% sulfur amino acids (basal diet) or 0,6% and 1% DL-methionine added to the control diet. Such an excess, reduced food intake and body weight gain mainly during the \"finishing period\" (60 to 100 kg). The RNA/DNA and protein/DNA ratios in the muscle did not show any difference. Hepatic activities of some enzymes involved in glycolysis, gluconeogenesis and amino acid metabolism, were unchanged, except that of methionine adenosyl transferase, the first step of transsulfuration, which was induced in proportion with the amount of the methionine ingested. Swine seemed to adapt to the excessive methionine intake, which did not show any toxicity in our experimental conditions.</p>","PeriodicalId":10605,"journal":{"name":"Comptes rendus des seances de l'Academie des sciences. Serie D, Sciences naturelles","volume":"291 6","pages":"565--8"},"PeriodicalIF":0.0,"publicationDate":"1980-10-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"17832609","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
[Demonstration of intracellular release of calcium induced by sodium ions in the auricular trabeculae of the frog]. [钠离子在青蛙耳小梁诱导钙在细胞内释放的演示]。
Comptes rendus des seances de l'Academie des sciences. Serie D, Sciences naturelles Pub Date : 1980-10-13
R Bonvallet, M Ildefonse, O Rougier
{"title":"[Demonstration of intracellular release of calcium induced by sodium ions in the auricular trabeculae of the frog].","authors":"R Bonvallet,&nbsp;M Ildefonse,&nbsp;O Rougier","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>In a Ca-free, Mg-free medium containing EGTA (10-3M) auricular trabecles develop a slow inward current which is a pure sodium current. After 12 min in this medium, it is still possible to obtain a phasic mechanical activity which shows a perfect correlation with the current. This kind of behavior indicates that a mechanism of sodium-induced calcium release is present at the level of some internal sites.</p>","PeriodicalId":10605,"journal":{"name":"Comptes rendus des seances de l'Academie des sciences. Serie D, Sciences naturelles","volume":"291 6","pages":"557-60"},"PeriodicalIF":0.0,"publicationDate":"1980-10-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"17832608","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
[Demonstration of generators of the locomotor and respiration rhythms in the cervico-thoracic spinal cord of rabbits]. [兔颈-胸脊髓运动和呼吸节律产生器的演示]。
Comptes rendus des seances de l'Academie des sciences. Serie D, Sciences naturelles Pub Date : 1980-10-13
D Viala, E Freton
{"title":"[Demonstration of generators of the locomotor and respiration rhythms in the cervico-thoracic spinal cord of rabbits].","authors":"D Viala,&nbsp;E Freton","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>In curarized Rabbits whose cervico-thoracic cord has been isolated through C2 and Th12 transections, a pharmacological activation (nialamide-DOPA) disclosed distinct rhythmic efferent activities, locomotor-like bursts in forelimb muscle nerves and \"respiratory\" discharges in the phrenic nerves: they originate respectively from a cervico-thoracic locomotion generator and from a \"respiration\" generator; these spinal generators appear to be interconnected with each other.</p>","PeriodicalId":10605,"journal":{"name":"Comptes rendus des seances de l'Academie des sciences. Serie D, Sciences naturelles","volume":"291 6","pages":"573-6"},"PeriodicalIF":0.0,"publicationDate":"1980-10-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"17832611","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
[Hypnotic effect of serotonin administered in the vago-aortic afferent pathway]. 迷走-主动脉传入通路中5 -羟色胺的催眠作用。
Comptes rendus des seances de l'Academie des sciences. Serie D, Sciences naturelles Pub Date : 1980-10-13
A K Sayadi, G Gaudin-Chazal, N Seyfritz, J J Puizillout
{"title":"[Hypnotic effect of serotonin administered in the vago-aortic afferent pathway].","authors":"A K Sayadi,&nbsp;G Gaudin-Chazal,&nbsp;N Seyfritz,&nbsp;J J Puizillout","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>A minute amount of serotonin injected in the nodose ganglion circulation area develops abrupt myosis and general electrocortical synchronization activity in \"encéphale isolé\" Cat preparation. This hypnogenic effect of serotonin can still be reproduced after transection of vago-aortic nerves caudally to the nodose ganglia. The same injections become ineffective after rostral transection of the same pathway. These results suggest that serotonin may trigger some signs of sleep through peripheric nervous elements in which are probably localized in the nodose ganglia.</p>","PeriodicalId":10605,"journal":{"name":"Comptes rendus des seances de l'Academie des sciences. Serie D, Sciences naturelles","volume":"291 6","pages":"569-72"},"PeriodicalIF":0.0,"publicationDate":"1980-10-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"17832610","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
[Evolution of vasopressins in marsupials: a new hormone, phenypressin (Phe2-Arg8-vasopressin), present in the Macropodidae]. [有袋动物抗利尿激素的进化:一种新的激素，phenypressin (Phe2-Arg8-vasopressin)，存在于巨足动物科]。
Comptes rendus des seances de l'Academie des sciences. Serie D, Sciences naturelles Pub Date : 1980-10-13
M T Chauvet, D Hurpet, J Chauvet, R Acher
{"title":"[Evolution of vasopressins in marsupials: a new hormone, phenypressin (Phe2-Arg8-vasopressin), present in the Macropodidae].","authors":"M T Chauvet,&nbsp;D Hurpet,&nbsp;J Chauvet,&nbsp;R Acher","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>A duplication of the pressor hormone has been found in some marsupials, either American species belonging to the family Didelphidae or Australian species belonging to the family Macropodidae. Two pressor peptides, lysine vasopressin and phenypressin (Phe2-Arg8-vasopressin) have been chemically identified in the red Kangaroo (Macropus rufus) and the Tammar (Macropus eugenii). In contrast, the brush-tailed Possum (Trichosurus vulpecula), a species belonging to the family Phalangeridae, has a single pressor hormone, arginine vasopressin. Because this latter hormone was also found in a prototherian species, the Echidna, it might be assumed that it is the product of a primitive gene and that a duplication and subsequent mutations led to lysine vasopressin and phenypressin in Macropodidae.</p>","PeriodicalId":10605,"journal":{"name":"Comptes rendus des seances de l'Academie des sciences. Serie D, Sciences naturelles","volume":"291 6","pages":"541-3"},"PeriodicalIF":0.0,"publicationDate":"1980-10-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"17832640","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 spore fraction of Bacillus sphaericus toxic for larvae of Anopheles]. [对按蚊幼虫有毒性的球形芽孢杆菌孢子部分的分离]。
Comptes rendus des seances de l'Academie des sciences. Serie D, Sciences naturelles Pub Date : 1980-10-13
R Tinelli, H de Barjac, C Bourgouin
{"title":"[Isolation of a spore fraction of Bacillus sphaericus toxic for larvae of Anopheles].","authors":"R Tinelli,&nbsp;H de Barjac,&nbsp;C Bourgouin","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>A lethal fraction for Anopheles stephensi larvae has been isolated from Bacillus sphaericus strain 1593 spores by various methods The best results have been obtained by freezing and thawing which give an extract made in majority of protein with high molecular weight and causing 100% of mortality in 24 hours. Because of its easy extracction and its lack of diaminopimelic acid, the toxic fraction is thought to be located outside the spore coats.</p>","PeriodicalId":10605,"journal":{"name":"Comptes rendus des seances de l'Academie des sciences. Serie D, Sciences naturelles","volume":"291 6","pages":"537-9"},"PeriodicalIF":0.0,"publicationDate":"1980-10-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"17832638","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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