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Comparative biochemistry and physiology. Comparative physiology最新文献

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Localization and soma diameter of rat gluteus medius motoneurons. 大鼠臀中肌运动神经元的定位和胞体直径。
Comparative biochemistry and physiology. Comparative physiology Pub Date : 1992-05-01
H Miyata, Y Kawai
{"title":"Localization and soma diameter of rat gluteus medius motoneurons.","authors":"H Miyata,&nbsp;Y Kawai","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>1. Retrograde transport of horseradish peroxidase was used to examine the localization and soma diameter of motoneurons innervating the deep (predominance of oxidative fibers) and superficial (predominance of non-oxidative fibers) portions of the gluteus medius muscle in rats. 2. The motoneurons innervating the deep portion were located caudally within the gluteus medius motoneuron pool and had smaller average soma diameter than that of motoneurons innervating the superficial portion. 3. These results suggest that the location of the muscle fibers within the muscle is related to the location of motoneurons within the motoneuron pool, and that the soma diameter of motoneuron innervating oxidative muscle fibers may be smaller than those innervating non-oxidative fibers in the rat.</p>","PeriodicalId":77080,"journal":{"name":"Comparative biochemistry and physiology. Comparative physiology","volume":"102 1","pages":"111-6"},"PeriodicalIF":0.0,"publicationDate":"1992-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"12524540","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
Fatty liver induced by the addition of excess cystine to a soy-bean protein diet in rats. 在大豆蛋白饮食中添加过量胱氨酸引起的大鼠脂肪肝。
Comparative biochemistry and physiology. Comparative physiology Pub Date : 1992-05-01
Y Aoyama, H Matsumoto, E Hitomi-Ohmura, A Yoshida
{"title":"Fatty liver induced by the addition of excess cystine to a soy-bean protein diet in rats.","authors":"Y Aoyama,&nbsp;H Matsumoto,&nbsp;E Hitomi-Ohmura,&nbsp;A Yoshida","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>1. The effects of excess cystine added to diets with casein, egg protein, soya-bean protein and wheat gluten as protein source on liver and serum lipids of rats were compared. 2. The addition of excess cystine to a soya-bean protein diet produced lipid accumulation in the liver. 3. The addition of excess cystine to casein, egg protein and soya-bean protein diets, but not a wheat gluten diet, increased serum cholesterol.</p>","PeriodicalId":77080,"journal":{"name":"Comparative biochemistry and physiology. Comparative physiology","volume":"102 1","pages":"185-9"},"PeriodicalIF":0.0,"publicationDate":"1992-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"12524548","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
Water proton ion in leg muscles of crayfish subjected to starvation. 饥饿小龙虾腿部肌肉中的水质子离子。
Comparative biochemistry and physiology. Comparative physiology Pub Date : 1992-05-01
A Chiba, S Chichibu
{"title":"Water proton ion in leg muscles of crayfish subjected to starvation.","authors":"A Chiba,&nbsp;S Chichibu","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>1. Using nuclear magnetic resonance, we studied the relationships of in vivo water to establish the correlation between the degree of starvation and the spin-lattice or spin-spin relaxation times (T1 and T2, respectively) of water protons in the leg muscles of crayfish (Procambarus clarkii). 2. As the period of starvation increased, the water content as a component of body weight increased, and the T1 value was proportional to the increase in water content of the leg muscles of the crayfish. 3. The T2 value increased exponentially in comparison with the T1 value for each corresponding stage. 4. Our studies suggest that the state of the body water resulting from starvation was affected by cellular environmental change.</p>","PeriodicalId":77080,"journal":{"name":"Comparative biochemistry and physiology. Comparative physiology","volume":"102 1","pages":"127-31"},"PeriodicalIF":0.0,"publicationDate":"1992-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"12524543","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
Stimulation of corticosterone secretion by dietary histidine in rats. 组氨酸对大鼠皮质酮分泌的刺激作用。
Comparative biochemistry and physiology. Comparative physiology Pub Date : 1992-04-01
Y Aoyama, H Sugiura, N Amano, A Yoshida
{"title":"Stimulation of corticosterone secretion by dietary histidine in rats.","authors":"Y Aoyama,&nbsp;H Sugiura,&nbsp;N Amano,&nbsp;A Yoshida","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>1. Liver glycogen accumulated within 3 days after the initiation of a histidine-excess diet. Serum corticosterone increased and serum insulin decreased, but plasma glucagon remained unchanged. 2. When 2 mmol (310 mg) of histidine was administered to fasted rats, serum corticosterone increased after 5 hr and tended to be higher 9 hr after administration. 3. Liver glycogen tended to accumulate after 5 hr and had accumulated significantly after 9 hr.</p>","PeriodicalId":77080,"journal":{"name":"Comparative biochemistry and physiology. Comparative physiology","volume":"101 4","pages":"863-6"},"PeriodicalIF":0.0,"publicationDate":"1992-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"12523905","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
Digesta retention and fibre digestion in maras (Dolichotis patagonum) and guinea-pigs. 马拉斯和豚鼠的食糜保留和纤维消化。
Comparative biochemistry and physiology. Comparative physiology Pub Date : 1992-04-01
E Sakaguchi, K Nippashi, G Endoh
{"title":"Digesta retention and fibre digestion in maras (Dolichotis patagonum) and guinea-pigs.","authors":"E Sakaguchi,&nbsp;K Nippashi,&nbsp;G Endoh","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>1. Digestibilities of feed and turnover time (1/k), transit time (TT) and mean retention time (MRT: 1/k+TT) of fluid and particle markers were measured in maras (Dolichotis patagonum) and guinea-pigs (Cavia procellus) fed a diet containing 50% alfalfa. 2. The digestibility of fibre was similar in both animals, however, the digestibilities of crude protein (nitrogen x 6.25) and crude ash were lower in the mara than in the guinea-pig. 3. 1/k of the digesta markers were similar in both animals, suggesting that the two animals possess similar dilution and retention time of digesta in their caecum and proximal colon.</p>","PeriodicalId":77080,"journal":{"name":"Comparative biochemistry and physiology. Comparative physiology","volume":"101 4","pages":"867-70"},"PeriodicalIF":0.0,"publicationDate":"1992-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"12523906","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
Effects of arginine vasotocin, cortisol and adrenergic factors on water balance in the toad Bufo bufo: physiology or pharmacology? 精氨酸缩宫素、皮质醇和肾上腺素能因子对蟾蜍体内水分平衡的影响:生理还是药理?
Comparative biochemistry and physiology. Comparative physiology Pub Date : 1992-04-01
C B Jorgensen
{"title":"Effects of arginine vasotocin, cortisol and adrenergic factors on water balance in the toad Bufo bufo: physiology or pharmacology?","authors":"C B Jorgensen","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>1. The threshold level of exogenous arginine vasotocin (AVT) for increasing the cutaneous water permeability in Bufo bufo was several times higher than has been measured in dehydrated frogs and toads. 2. The beta-agonist isoproterenol was without effect on water balance in hydrated toads but increased the response to large doses of AVT by 25-50%. 3. Implantation of cortisol pellets in water-acclimated toads enhanced the cutaneous water permeability by a factor of 2-3. 4. It is concluded that understanding of water balance in terrestrial anurans may depend upon the unravelling of mechanisms that integrate cutaneous water transport and diuresis.</p>","PeriodicalId":77080,"journal":{"name":"Comparative biochemistry and physiology. Comparative physiology","volume":"101 4","pages":"709-16"},"PeriodicalIF":0.0,"publicationDate":"1992-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"12524163","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
Effects of arginine vasotocin, cortisol and adrenergic factors on water balance in the toad Bufo bufo: physiology or pharmacology? 精氨酸缩宫素、皮质醇和肾上腺素能因子对蟾蜍体内水分平衡的影响:生理还是药理?
Comparative biochemistry and physiology. Comparative physiology Pub Date : 1992-04-01 DOI: 10.1016/0300-9629(92)90348-T
C.Barker Jørgensen
{"title":"Effects of arginine vasotocin, cortisol and adrenergic factors on water balance in the toad Bufo bufo: physiology or pharmacology?","authors":"C.Barker Jørgensen","doi":"10.1016/0300-9629(92)90348-T","DOIUrl":"https://doi.org/10.1016/0300-9629(92)90348-T","url":null,"abstract":"","PeriodicalId":77080,"journal":{"name":"Comparative biochemistry and physiology. Comparative physiology","volume":"115 1","pages":"709-16"},"PeriodicalIF":0.0,"publicationDate":"1992-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73194572","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: 27
Effects of hypoxia on renal function in carp, Cyprinus carpio. 缺氧对鲤鱼肾功能的影响。
Comparative biochemistry and physiology. Comparative physiology Pub Date : 1992-04-01
I Kakuta, K Namba, K Uematsu, S Murachi
{"title":"Effects of hypoxia on renal function in carp, Cyprinus carpio.","authors":"I Kakuta,&nbsp;K Namba,&nbsp;K Uematsu,&nbsp;S Murachi","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>1. Changes in urine and blood properties and heart rate (HR) of carp were investigated during and following hypoxia. 2. When carp were exposed to hypoxic conditions, urine flow in some carp increased immediately. However, it decreased gradually with time. Osmotic pressure and Na+, Cl-, Ca2+ and Mg2+ levels in urine increased in contrast to urine flow. K+, P, ammonium, and lactic acid levels in urine increased gradually. 3. When carp lost their balance, blood pH and plasma K+ were lower, and RBC, Ht, Hb, Mg2+, P, ammonium, lactic acid, and glucose in plasma were higher than those of the control. 4. As water-dissolved oxygen level was restored, urine flow increased immediately and soon decreased to the control rate. Other urine properties showed higher values than the initial levels and decreased with time. No significant change was found in urinary protein. 5. The relationship between HR and urine flow is discussed.</p>","PeriodicalId":77080,"journal":{"name":"Comparative biochemistry and physiology. Comparative physiology","volume":"101 4","pages":"769-74"},"PeriodicalIF":0.0,"publicationDate":"1992-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"12524743","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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