Archives internationales de physiologie et de biochimie最新文献_第7页

Dopamine receptor agonists, N,N-dipropyl-2-aminotetralin (TL-68) and 2-di-n-propylamino-4,7-dimethoxyindane (RDS-127) antagonize oxotremorine-induced tremors by antimuscarinic action in mice. 多巴胺受体激动剂N,N-二丙基-2-氨基四乙胺(TL-68)和2-二- N-丙基-4,7-二甲氧基苯胺(RDS-127)通过抗毒蕈碱作用拮抗氧tremorine诱导的小鼠震颤。

Archives internationales de physiologie et de biochimie Pub Date : 1990-03-01 DOI: 10.3109/13813459009115730

I Sahin, M Tuncer, M Ilhan

引用次数: 2

Effects of temperature, and dietary magnesium and nickel levels on magnesium and nickel concentrations during the moult-cycle in Oniscus asellus (Porcellionidae, Isopoda, Crustacea). 温度和饲粮镁、镍水平对无皮蛇蚌换壳过程中镁、镍含量的影响

Archives internationales de physiologie et de biochimie Pub Date : 1990-03-01 DOI: 10.3109/13813459009115731

M A Alikhan

{"title":"Effects of temperature, and dietary magnesium and nickel levels on magnesium and nickel concentrations during the moult-cycle in Oniscus asellus (Porcellionidae, Isopoda, Crustacea).","authors":"M A Alikhan","doi":"10.3109/13813459009115731","DOIUrl":"https://doi.org/10.3109/13813459009115731","url":null,"abstract":"Mean magnesium concentrations in intermoult Oniscus asellus, caged at 20 degrees C for 10 days, ranged from 1,059.15 +/- 51.9 ppm on diets containing 10 ppm nickel, to 6,827.6 +/- 314.1 ppm on a mixture of 500 ppm magnesium + 10 ppm nickel. Mean nickel concentrations ranged from 89.4 +/- 4.3 ppm on diets containing 500 ppm magnesium, to 314.0 +/- 14.8 ppm on a mixture of 500 ppm magnesium + 10 ppm nickel. At 30 degrees C, magnesium tissue concentrations ranged from 4,149.8 +/- 153.5 ppm on diets with 10 ppm nickel to 12,602.6 +/- 529.3 ppm on 500 ppm magnesium. Nickel concentrations at 30 degrees C varied from 156.8 +/- 6.7 in isopods in the control to 490.5 +/- 23.5 ppm on those on 500 ppm magnesium + 10 ppm nickel. Magnesium in intermoult isopods was mainly stored in other tissues, including the exoskeleton, and nickel in the hepatopancreas. Differences in both magnesium and nickel concentrations between males and females were not significant. Magnesium and nickel concentrations in postmoult isopods, on the average, amounted to 367.6 +/- 16.5 ppm and 18.7 +/- 0.7 ppm, respectively, at 20 degrees C, and 369.9 +/- 16.3 ppm and 30.9 +/- 1.3 ppm, respectively, at 30 degrees C. Differences between males and females, and between various treatments were not significant at P greater than 0.01. It is suggested that both hepatopancreas and other tissues, including the exoskeleton, are used as sinks to get rid of excessive tissue magnesium and nickel during the moult-cycle.","PeriodicalId":8170,"journal":{"name":"Archives internationales de physiologie et de biochimie","volume":"98 1","pages":"11-8"},"PeriodicalIF":0.0,"publicationDate":"1990-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.3109/13813459009115731","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"12857604","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: 3

On the purinergic system in rat duodenum: existence of P1 and P2 receptors on the smooth muscle. 大鼠十二指肠嘌呤能系统:平滑肌上存在P1和P2受体。

Archives internationales de physiologie et de biochimie Pub Date : 1990-03-01 DOI: 10.3109/13813459009115737

A Postorino, R Serio, F Mulè

引用次数: 6

Quantitative noninvasive electrophysiological evaluation of the activity of the cutaneous division of the sympathetic nervous system. 定量无创电生理评估交感神经系统皮肤分裂的活动。

Archives internationales de physiologie et de biochimie Pub Date : 1990-03-01 DOI: 10.3109/13813459009115744

C Ionescu-Tirgoviste, S Pruna

引用次数: 5

Spontaneous electromechanical activity in the rat duodenum in vitro. 大鼠离体十二指肠的自发机电活动。

Archives internationales de physiologie et de biochimie Pub Date : 1990-03-01 DOI: 10.3109/13813459009115735

A Postorino, R Mancinelli, C Racanicchi, E B Adamo, R Marini

{"title":"Spontaneous electromechanical activity in the rat duodenum in vitro.","authors":"A Postorino, R Mancinelli, C Racanicchi, E B Adamo, R Marini","doi":"10.3109/13813459009115735","DOIUrl":"https://doi.org/10.3109/13813459009115735","url":null,"abstract":"Isolated rat duodenum shows spontaneous mechanical and electrical activities. Mechanical activity consists in changes both in endoluminal pressure and in isometric tension. Electrical activity is characterized by slow waves with superimposed bursts. This spontaneous activity is tetrodotoxin (TTX) resistant and therefore it is myogenic in origin. Indeed, TTX pretreatment, even in the presence of atropine and guanethidine, caused an increase in amplitude and in frequency of the electrical and mechanical activities. This finding indicates the presence of tonically active inhibitory intramural non adrenergic, non cholinergic (NANC) nerves. Duodenal longitudinal strips showed a spontaneous mechanical activity resembling that one recorded from isolated segment. Instead, circular strips are quiescent under resting condition and a contractile activity can be detected only after TTX pretreatment suggesting that: i) the circular smooth muscle layer is tonically inhibited by intramural NANC nerves and, ii) the contractions observed in the rat duodenum are due to the activity of the longitudinal one.","PeriodicalId":8170,"journal":{"name":"Archives internationales de physiologie et de biochimie","volume":"98 1","pages":"35-40"},"PeriodicalIF":0.0,"publicationDate":"1990-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.3109/13813459009115735","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"12857611","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: 15

[Variation in the level of free amino acids during larva development of Penaeus japonicus (Crustacea, Decapoda, Penaeidae]. [日本对虾(甲壳纲，十足纲，对虾科)幼虫发育过程中游离氨基酸水平的变化]。

Archives internationales de physiologie et de biochimie Pub Date : 1990-03-01 DOI: 10.3109/13813459009115736

C Marangos, A C Araujo Barbosa, H J Ceccaldi

{"title":"[Variation in the level of free amino acids during larva development of Penaeus japonicus (Crustacea, Decapoda, Penaeidae].","authors":"C Marangos, A C Araujo Barbosa, H J Ceccaldi","doi":"10.3109/13813459009115736","DOIUrl":"https://doi.org/10.3109/13813459009115736","url":null,"abstract":"AbstractVariations of free amino-acids (FAA) content during the larval development of Penaeus japonicus have been studied.FAA content increases from 83 to 687 μmoles/g dry weight from egg to post-larval (20 days old: P20) development. There is a sharp increase between zoe and mysis stages, and another one between one day post-larvae (P1) and P20. After the mysis stage, free essential and non essential amino-acids evolve in a different way: the non essential FAA content, mainly glycine, increases continuously, whereas essential FAA content decreases (about 40%) from the mysis stage to metamorphosis in post-larvae (P1).FAA content evolution during larval development exhibits the same trend as the variation of the digestive enzyme activity.ResumeLes variations des concentrations des acides amines libres (AAL) ont ete etudiees au cours du developpement larvaire de Penaeus japonicus.La concentration totale des AAL de l'aeuf a la post-larve de 20 jours (P20) augmente de 83 a 687 μmoles/g de poids sec. Cette augm...","PeriodicalId":8170,"journal":{"name":"Archives internationales de physiologie et de biochimie","volume":"98 1","pages":"41-51"},"PeriodicalIF":0.0,"publicationDate":"1990-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.3109/13813459009115736","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"12857612","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

Influence of fatty acid composition of diet on cholesterol content of eel liver and muscle. 饲料脂肪酸组成对鳗鱼肝脏和肌肉胆固醇含量的影响。

Archives internationales de physiologie et de biochimie Pub Date : 1990-03-01 DOI: 10.3109/13813459009115729

C Burgos, M Castillo, M F Zafra, E Garcia-Peregrin

引用次数: 2

Kinetic characterization and regulation of purified glutamine synthetase from brain of Clarias batrachus. batrachus脑纯化谷氨酰胺合成酶的动力学表征及调控。

Archives internationales de physiologie et de biochimie Pub Date : 1990-03-01 DOI: 10.3109/13813459009115742

R A Singh, S N Singh

{"title":"Kinetic characterization and regulation of purified glutamine synthetase from brain of Clarias batrachus.","authors":"R A Singh, S N Singh","doi":"10.3109/13813459009115742","DOIUrl":"https://doi.org/10.3109/13813459009115742","url":null,"abstract":"Glutamine synthetase (GS) from brain of Clarias batrachus is purified to about 42-fold and characterized at optimum pH and temperature with respect to its kinetic parameters. Values for apparent Michaelis constant of the enzyme for L-glutamine, hydroxylamine and ADP are 50, 62.5 and 0.833 mM respectively. The very low apparent Km for ADP may be specially related to the expression of GS action under high energy bond and also be evidenced by the requirement of enzyme for a high ionic strength of the ADP. The study is extended by examining the effect of various amino acids and metabolites on GS activity in order to gain further understanding of the changes in kinetics and regulation. It reveals that whereas uridine monophosphate and glutamate act competitively with respect to L-glutamine, carbamylphosphate and asparagine act non-competitively. GS activity is markedly inhibited by leucine, aspartic acid and AMP but not by lysine. ATP and methionine sulfoximine behaved as potent inhibitors of the enzyme in vitro. It is suggested that the teleostean GS has most of the properties similar to those reported for mammalian and avian glutamine synthetases. However, it is proposed that kinetic regulation of this enzyme may play a significant role in ammonia detoxication and rate of formation of glutamine-derived neurotransmitters in fish brain.","PeriodicalId":8170,"journal":{"name":"Archives internationales de physiologie et de biochimie","volume":"98 1","pages":"95-101"},"PeriodicalIF":0.0,"publicationDate":"1990-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.3109/13813459009115742","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"12857545","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: 1

Short term diet of precooked corn meal almost lacking in tryptophan and interspecific rat-mouse aggressive behaviour. 短期食用几乎缺乏色氨酸的预煮玉米粉和大鼠-小鼠的种间攻击行为。

Archives internationales de physiologie et de biochimie Pub Date : 1990-03-01 DOI: 10.3109/13813459009115733

S Giammanco, M Ernandes, R Lopez de Onate, M A Paderni

引用次数: 16

Use of the biochemical analysis of muscle proteins to help the classification of polychromic individuals of the genus Symphodus. 利用肌肉蛋白的生化分析，以帮助多色个体的分类。

Archives internationales de physiologie et de biochimie Pub Date : 1990-03-01 DOI: 10.3109/13813459009115741

B Focant, C Michel, P Vandewalle

引用次数: 9