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Romanian journal of physiology : physiological sciences最新文献

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Professor Ioan Athanasiu's contributions in the promotion of the graphic and cinematographic method in physiology. Ioan Athanasiu教授在促进生理学的图形和电影方法方面的贡献。
Romanian journal of physiology : physiological sciences Pub Date : 1998-07-01
R Cârmaciu
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引用次数: 0
Influence of bilateral olfactory bulbectomy on the circadian rhythm of phagocytic activity and phagocytic response in mice. 双侧嗅球切除对小鼠吞噬活性昼夜节律及吞噬反应的影响。
Romanian journal of physiology : physiological sciences Pub Date : 1998-07-01
G Saulea, M Hriscu, N Vidraşcu, I Baciu
{"title":"Influence of bilateral olfactory bulbectomy on the circadian rhythm of phagocytic activity and phagocytic response in mice.","authors":"G Saulea,&nbsp;M Hriscu,&nbsp;N Vidraşcu,&nbsp;I Baciu","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>The bilateral olfactory bulbectomy (OB) has been proposed as an animal model of depression. The present study, carried out on NMRI adult male mice kept on a natural LD 12:12 regimen, aimed to assess the influence of OB on the circadian rhythm of blood neutrophils phagocytosis. The results show that OB mice present an about 20% reduction of the basal phagocytic activity at 09.00 hrs, 15.00 hrs. and 21.00 hrs. and a 40% reduction at 03.00 hrs., leading to a flattened circadian phagocytic curve. The results indicate that bilateral olfactory bulbectomy depresses phagocytosis, alters its circadian rhythm and consequently increases susceptibility to infections.</p>","PeriodicalId":79373,"journal":{"name":"Romanian journal of physiology : physiological sciences","volume":"35 3-4","pages":"313-8"},"PeriodicalIF":0.0,"publicationDate":"1998-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"21889817","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
Professor Ioan Athanasiu, teacher and protector of university youth. Ioan Athanasiu教授，教师和大学青年的保护者。
Romanian journal of physiology : physiological sciences Pub Date : 1998-07-01
G C Cotor, A I Radulescu
{"title":"Professor Ioan Athanasiu, teacher and protector of university youth.","authors":"G C Cotor,&nbsp;A I Radulescu","doi":"","DOIUrl":"","url":null,"abstract":"","PeriodicalId":79373,"journal":{"name":"Romanian journal of physiology : physiological sciences","volume":"35 3-4","pages":"221-3"},"PeriodicalIF":0.0,"publicationDate":"1998-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"21887929","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
Intrinsic neuronal time delays can be compensated in cat visual cortex and frog tectum with regard to motion analysis. 在运动分析方面，猫视觉皮层和青蛙顶盖的内在神经元时间延迟可以得到补偿。
Romanian journal of physiology : physiological sciences Pub Date : 1998-07-01
H J Koch
{"title":"Intrinsic neuronal time delays can be compensated in cat visual cortex and frog tectum with regard to motion analysis.","authors":"H J Koch","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>Motion detection is an essential biological property of vertebral brain. In order to localize moving objects exactly, intrinsic time delays of the neuronal network must be compensated for. Invariance of position with regard to velocity of a stimulus due to a negative spatial shift is one option for compensation. Experimental results found in the present study support the view that negative spatial shift occurs in the visual cortex of the cat and the tectum of the frog. An order of 30% of the visual neurons may be suited to compensate intrinsic time delays.</p>","PeriodicalId":79373,"journal":{"name":"Romanian journal of physiology : physiological sciences","volume":"35 3-4","pages":"275-84"},"PeriodicalIF":0.0,"publicationDate":"1998-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"21889815","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
Professor Ioan Athanasiu--the main promotor of the Superior School of Veterinary Medicine at the standards of a faculty. Ioan Athanasiu教授——高等兽医学院的主要推动者。
Romanian journal of physiology : physiological sciences Pub Date : 1998-07-01
I Miclauş
{"title":"Professor Ioan Athanasiu--the main promotor of the Superior School of Veterinary Medicine at the standards of a faculty.","authors":"I Miclauş","doi":"","DOIUrl":"","url":null,"abstract":"","PeriodicalId":79373,"journal":{"name":"Romanian journal of physiology : physiological sciences","volume":"35 3-4","pages":"215-9"},"PeriodicalIF":0.0,"publicationDate":"1998-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"21887928","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
Ioan Athanasiu--founder of the new Institute of Physiology at the University of Bucharest. Ioan Athanasiu——布加勒斯特大学新生理学研究所的创始人。
Romanian journal of physiology : physiological sciences Pub Date : 1998-07-01
G Strungaru
{"title":"Ioan Athanasiu--founder of the new Institute of Physiology at the University of Bucharest.","authors":"G Strungaru","doi":"","DOIUrl":"","url":null,"abstract":"","PeriodicalId":79373,"journal":{"name":"Romanian journal of physiology : physiological sciences","volume":"35 3-4","pages":"211-4"},"PeriodicalIF":0.0,"publicationDate":"1998-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"21887933","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
The effects of dopaminergic mediation upon colloidopectic activity of the mononuclear phagocyte system. 多巴胺能介导对单核吞噬细胞系统胶体活性的影响。
Romanian journal of physiology : physiological sciences Pub Date : 1998-07-01
D Pop, M Dorofteiu, L Don
{"title":"The effects of dopaminergic mediation upon colloidopectic activity of the mononuclear phagocyte system.","authors":"D Pop,&nbsp;M Dorofteiu,&nbsp;L Don","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>The investigations were carried out on 30 Wistar albino male rats. A group of animals received Levodpa (Nakom), another group received Methyldopa (Dopegyt). One and a half hour after administration, the phagocytic activity was measured using colloidal carbon. Subsequent to Levodopa administration a significant increase occurred in the phagocytic activity. Following the treatment with Methyldopa the phagocytic activity in macrophages decreased. Our studies confirm the idea that the central adrenergic system stimulates the colloidopectic capacity of macrophages.</p>","PeriodicalId":79373,"journal":{"name":"Romanian journal of physiology : physiological sciences","volume":"35 3-4","pages":"331-7"},"PeriodicalIF":0.0,"publicationDate":"1998-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"21888025","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
The role of the Gregg phenomenon in cardiac performance. 格雷格现象在心脏机能中的作用。
Romanian journal of physiology : physiological sciences Pub Date : 1998-07-01
C I Salavastru, R Cârmaciu
{"title":"The role of the Gregg phenomenon in cardiac performance.","authors":"C I Salavastru,&nbsp;R Cârmaciu","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>The Gregg phenomenon has not, yet, a full and complete explanation. We are allowed to consider it a \"garden house\"-like effect. Positive inotropic factors are released as a consequence of \"shear stress\" phenomenon following an increased coronarian flow. In our study, it is more probably a \"garden house\"-like effect that causes a sarcomere stretch. This could explain the increased left ventricle performance found, in some circumstances, in our study. We used the data obtained by coronarography in 22 patients carrying various degrees of coronarian obstruction and we assessed the left ventricle performance during the repeated injection of contrast medium, that increases the pressure in the coronarian bed. The results obtained support the theory regarding the Gregg effect but do not allow us to consider this effect as a fundamental determinant of the cardiac performance.</p>","PeriodicalId":79373,"journal":{"name":"Romanian journal of physiology : physiological sciences","volume":"35 3-4","pages":"253-7"},"PeriodicalIF":0.0,"publicationDate":"1998-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"21889814","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
[Professor Ioan Athanasiu and military medicine]. [Ioan Athanasiu教授和军事医学]。
Romanian journal of physiology : physiological sciences Pub Date : 1998-07-01
T Giurgiu
{"title":"[Professor Ioan Athanasiu and military medicine].","authors":"T Giurgiu","doi":"","DOIUrl":"","url":null,"abstract":"","PeriodicalId":79373,"journal":{"name":"Romanian journal of physiology : physiological sciences","volume":"35 3-4","pages":"225-9"},"PeriodicalIF":0.0,"publicationDate":"1998-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"21887931","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
High glucose concentrations increase the tumor necrosis factor-alpha production capacity by human peripheral blood mononuclear cells. 高葡萄糖浓度增加人外周血单核细胞产生肿瘤坏死因子α的能力。
Romanian journal of physiology : physiological sciences Pub Date : 1998-07-01
N Hâncu, M G Netea, I Baciu
{"title":"High glucose concentrations increase the tumor necrosis factor-alpha production capacity by human peripheral blood mononuclear cells.","authors":"N Hâncu,&nbsp;M G Netea,&nbsp;I Baciu","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>The proinflammatory cytokines tumor necrosis factor-a (TNF) and interleukin-1b (IL-1) play an important role in the pathogenesis of insulin-dependent diabetes mellitus, while TNF is also involved in promoting insulin resistance. It has been recently shown that glucose can induce the synthesis of TNF and IL-6 in human monocytes. The aim of the present study was to investigate the effect of glucose on unstimulated and lipopolysaccharide (LPS)-induced TNF and IL-1 production by human peripheral blood mononuclear cells (PBMC). No effect of glucose on spontaneous release of TNF or IL-I could be observed. The LPS-stimulated production of TNF was enhanced when cells were preincubated with increasing glucose concentrations. In contrast, no effect of glucose preincubation on LPS-induced IL-I synthesis was found. In conclusion, high glucose concentrations can increase the stimulated TNF production capacity, with possible important consequences for patients with diabetes mellitus.</p>","PeriodicalId":79373,"journal":{"name":"Romanian journal of physiology : physiological sciences","volume":"35 3-4","pages":"325-30"},"PeriodicalIF":0.0,"publicationDate":"1998-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"21888024","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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