Fiziologicheskiĭ zhurnal最新文献_第2页

[Response and endocrine mechanisms in the kidney effected by sodium chloride]. [氯化钠对肾脏反应及内分泌机制的影响]。

Fiziologicheskiĭ zhurnal Pub Date : 1993-09-01

M V Kryshtal, E H Hareieva, A I Hozhenko

{"title":"[Response and endocrine mechanisms in the kidney effected by sodium chloride].","authors":"M V Kryshtal, E H Hareieva, A I Hozhenko","doi":"","DOIUrl":"","url":null,"abstract":"The results of experiments on white rats, consuming different quantities of NaCl, show that excessive sodium chloride load increases osmolarity of blood plasma mainly due to excessive accumulation of Cl- in the blood. At the same time urine osmolarity increases by a factor of 10 due to the rise of water reabsorption and a fall in reabsorption of osmotical active substances such as sodium, potassium, chlorides, phosphates and other ions showing tendency to the glomerulus filtration rate rise. This testifies to the priority of osmoregulation over ionoregulation. NaCl injection causes a fall in difference of Na+ and Cl- concentrations in the blood plasma due to Na+ deposition by tissues, which leads to extracellular metabolic acidosis. Kidneys respond to it by a decrease of the urine pH and increase of excretion of hydrogen ions in the form of titrated acids and ammonium, as well as by removal of chloride ions which are not connected with sodium. The conclusion is made that kidneys' function of acid-excretion depends first of all on the acid-base status of extracellular fluids and not on intracellular pH. Concentration of corticotropin in the blood increases in the case of sodium deficiency as well as in the excess of sodium. Deficiency of Na+ intensifies activity of the renin-angiotensin-aldosterone system and decreases ADH secretion, while salt load produces just the opposite effect. The role of the hormones in kidneys' compensatory reaction to excessive NaCl load is discussed.","PeriodicalId":12337,"journal":{"name":"Fiziologicheskiĭ zhurnal","volume":"39 5-6","pages":"56-60"},"PeriodicalIF":0.0,"publicationDate":"1993-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"19040789","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

[Changes of static and dynamic characteristics of external respiration in divers after short-term dives down to 100 m]. [潜水者短期下潜至100米后外呼吸静、动态特征的变化]。

Fiziologicheskiĭ zhurnal Pub Date : 1993-09-01

V M Ilin, S O Huliar, A I Dmitruk

引用次数: 0

[Effect of the changes of epiphysial functions on the central and peripheral immune system in mice]. [小鼠表皮功能改变对中枢和外周免疫系统的影响]。

Fiziologicheskiĭ zhurnal Pub Date : 1993-09-01

I F Labunets, H M Butenko

引用次数: 0

[Some indicators of nervous system function in people exposed to harmful conditions of the Chernobyl accident]. [暴露在切尔诺贝利事故有害条件下的人的神经系统功能的一些指标]。

Fiziologicheskiĭ zhurnal Pub Date : 1993-09-01

E A Vashchenko

{"title":"[Some indicators of nervous system function in people exposed to harmful conditions of the Chernobyl accident].","authors":"E A Vashchenko","doi":"","DOIUrl":"","url":null,"abstract":"Clinico-neurophysiological study of the functional state of the nervous system was performed for persons who participated in elimination of the Chernobyl accident consequences in 1986, as well as for persons working in the 30 km zone. Mean age of the persons was 41. Vegetative dystonia syndrome was diagnosticated in 50% of examined subjects. The increased perception and pain thresholds, as well as the thresholds' asymmetry were determined in 30% of patients. The conduction velocity of sensory and motor nerves, as well as the neuromuscular transmission were normal. No substantial changes in parameters of the soleus H- and M-responses were detected. A decreased amplitude and increased latency of the evoked skin sympathetic potential were found indicating a decreased tone of the adrenergic sympathetic vasoconstrictors and cholinergic sudomotor fibres, that may be one of the pathogenic mechanisms of the sensory, vegetotrophovascular disorders for these subjects. Decreased activity of the sympathetic autonomic system causes permanent course of the vegetative dystonia syndrome and more seldom the parasympathetic autonomic paroxysms. A decreased tone of the sympathetic autonomic system may be due to the monoaminergic neuromediation inhibition (decreased noradrenaline and dopamine excretion for the same subjects), that can induce psychoemotional disorders, depression and sleep-wakeness cycle disorders.","PeriodicalId":12337,"journal":{"name":"Fiziologicheskiĭ zhurnal","volume":"39 5-6","pages":"10-8"},"PeriodicalIF":0.0,"publicationDate":"1993-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"19038824","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

[Effect of small doses of pituitrin on electrocardiography of ischemia in the experiment]. [实验中小剂量垂体后叶素对缺血心电图的影响]。

Fiziologicheskiĭ zhurnal Pub Date : 1993-09-01

V M Pozin, S G Skuratovskaia, G A Pocheptsova

引用次数: 0

[Pathogenesis of atherosclerosis in diabetes mellitus. The role of insulin resistance and hyperinsulinemia]. 糖尿病动脉粥样硬化的发病机制。胰岛素抵抗和高胰岛素血症的作用]。

Fiziologicheskiĭ zhurnal Pub Date : 1993-09-01

E p Kostiuk, S T Zubkova

引用次数: 0

[Effect of renal polypeptides on lymphocyte activity in experimental nephritis]. 肾多肽对实验性肾炎患者淋巴细胞活性的影响。

Fiziologicheskiĭ zhurnal Pub Date : 1993-09-01

I P Kaĭdashev