Nutrition and metabolism最新文献_第3页

Spontaneous activity and food requirements for maintenance and for growth in the genetically obese Zucker rat. 基因肥胖的朱克大鼠维持和生长的自发活动和食物需求。

Nutrition and metabolism Pub Date : 1980-01-01 DOI: 10.1159/000176344

P Haberey, A Bach, A Schaefer, F Piquard

引用次数: 7

[Energy balance study with a carbohydrate-free protein-fat diet]. [无碳水化合物蛋白质-脂肪饮食的能量平衡研究]。

Nutrition and metabolism Pub Date : 1980-01-01

M Kirchgessner, H L Müller

{"title":"[Energy balance study with a carbohydrate-free protein-fat diet].","authors":"M Kirchgessner, H L Müller","doi":"","DOIUrl":"","url":null,"abstract":"The effect of a carbohydrate-free protein-fat (PF) diet compared with a mixed diet (CPF diet) on the energy metabolism was studied in a changeover trial with mature sows. The PF diet contained two thirds of its metabolizable energy as protein and one third as fat; in the CPF diet the relationship was 3.5 carbohydrate: 1 protein: 0.2 fat. Under the conditions of undernutrition and neutral temperature nitrogen, carbon and energy balance were assessed as parameters according to the procedures of indirect calorimetry in four 24-hour measurements each for the gaseous exchange of the animals. At isocaloric supply of metabolizable energy, no differences were found in the N, C and energy retention. The mean heat production amounted to 23.6 MJ/day in both dietary groups. Also, no dietary influence could be observed with regards to the daily time pattern of heat production nor to the physical activity of the animals. Computation of the nutrient utilization on the basis of potential ATP formation resulted in a turnover of 304 mol ATP/day for the mixed diet and in 275 mol ATP for the carbohydrate-free diet. The discrepancy is discussed. Overall, the results show that an increased heat production, providing the possibility of an augmented loss of body energy, could not be induced by the carbohydrate-free protein-fat diet in the course of undernutrition.","PeriodicalId":19333,"journal":{"name":"Nutrition and metabolism","volume":"24 1","pages":"1-12"},"PeriodicalIF":0.0,"publicationDate":"1980-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"18453932","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

Ineffectiveness of testosterone and FSH in maintaining the vitamin A deficient rat testis. 睾酮和卵泡刺激素对维持维生素A缺乏大鼠睾丸的无效作用。

Nutrition and metabolism Pub Date : 1980-01-01 DOI: 10.1159/000176348

G L Catignani, J G Bieri

引用次数: 3

Assessment of nutritional status in adult hospitalized patients. 成人住院患者营养状况评估。

Nutrition and metabolism Pub Date : 1980-01-01 DOI: 10.1159/000176313

V Tanphaichitr, S Kulapongse, S Komindr

引用次数: 16

"Post-coronary" rehabilitation, body composition, and recurrent infarction. An analysis of data from the Ontario Exercise-Heart Collaborative Study. “冠状动脉后”康复、身体成分和复发性梗死。对安大略省运动-心脏合作研究数据的分析。

Nutrition and metabolism Pub Date : 1980-01-01

R J Shephard

{"title":"\"Post-coronary\" rehabilitation, body composition, and recurrent infarction. An analysis of data from the Ontario Exercise-Heart Collaborative Study.","authors":"R J Shephard","doi":"","DOIUrl":"","url":null,"abstract":"Changes in body composition have been studied in patients with ischemic heart disease over a 2-year period, commencing 3--12 months after a well-documented myocardial infarction. Findings have been related to diet, the exercise undertaken (random allocation of volunteers to high intensity and low intensity exercise programmes) and the recurrence of myocardial infarcation. When first recruited, subjects were not much more obese than other middle-aged men. In contrast with experience in the \"healthy\" middle-aged exerciser, compliance of postcoronary patients with the required regimen was uninfluenced by body build. Over the 2 years of observation, both high and low intensity exercise groups showed small losses of fat and gains of lean mass. It is suggested that these changes reflect responses to dietary regulation and an increase of physical activity rather than a specific effect of the prescribed effort; the potential advantage of the high intensity exercise programme was lost through a larger food intake. Patients who sustained a recurrence of their infarction had an average percentage of body fat, but a low excess weight and lean mass; although isometric exercise is not frequently implicated in the recurrence of an infarction, the development of muscle mass might be advantageous to patients who must continue to work in occupations that demand sustained isometric muscular activity.","PeriodicalId":19333,"journal":{"name":"Nutrition and metabolism","volume":"24 6","pages":"383-95"},"PeriodicalIF":0.0,"publicationDate":"1980-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"18233967","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

L-dopa competes with tyrosine and tryptophan for human brain uptake. 左旋多巴与酪氨酸和色氨酸竞争人脑的吸收。

Nutrition and metabolism Pub Date : 1980-01-01 DOI: 10.1159/000176359

P Riederer

引用次数: 16

Influences of dietary fats on coronary flow rate and left ventricular work of the isolated rat heart: sunflower seed oil versus lard. 膳食脂肪对离体大鼠心脏冠状动脉流速和左心室功的影响:葵花籽油与猪油。

Nutrition and metabolism Pub Date : 1980-01-01 DOI: 10.1159/000176357

E A De Deckere, F Ten Hoor

{"title":"Influences of dietary fats on coronary flow rate and left ventricular work of the isolated rat heart: sunflower seed oil versus lard.","authors":"E A De Deckere, F Ten Hoor","doi":"10.1159/000176357","DOIUrl":"https://doi.org/10.1159/000176357","url":null,"abstract":"The influences of dietary sunflower seed oil and lard on coronary flow rate and external left ventricular work were studied in the isolated Langendorff-perfused and working rat heart. For 1, 4 or 6 weeks, rats were fed diets containing 25--50% of the total digestible energy as fat, 23% as casein an 52--27% as starch. The coronary flow rate and the maximum left ventricular work of hearts of rats fed sunflower seed oil were higher than those of hearts of rats fed lard (about 15 and 10%, respectively). The maximum left ventricular work was achieved at a left ventricular filling pressure of 10--12 mm Hg: this value was not affected by the type of dietary fat. The effect of dietary fat on coronary flow rare is already seen after 1 week of feeding, and on left ventricular work after 4 weeks of feeding. Analysis of variance shows a positive relationship between the maximum left ventricular work and the amount of sunflower seed oil. It is concluded that dietary fats affect coronary flow rate and left ventricular work in the isolated rat heart. The increase in left ventricular work may be caused by an increase in contractility.","PeriodicalId":19333,"journal":{"name":"Nutrition and metabolism","volume":"24 6","pages":"396-408"},"PeriodicalIF":0.0,"publicationDate":"1980-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1159/000176357","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"17509936","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: 25

The role of fat in child nutrition. 脂肪在儿童营养中的作用。

Nutrition and metabolism Pub Date : 1980-01-01 DOI: 10.1159/000176378

F Grande

引用次数: 4

Influence of cholecalciferol on tissue zinc homeostasis in the rat. 胆骨化醇对大鼠组织锌稳态的影响。

Nutrition and metabolism Pub Date : 1980-01-01 DOI: 10.1159/000176277

A B Chausmer, G Ward, R Zears

引用次数: 3

Urea synthesis by perfused rat liver in experimental uremia. 实验性尿毒症大鼠肝脏灌注合成尿素。

Nutrition and metabolism Pub Date : 1980-01-01 DOI: 10.1159/000176358

G Perez, B Rietberg, B Owens, T Parker, H Obaya, E Schiff

{"title":"Urea synthesis by perfused rat liver in experimental uremia.","authors":"G Perez, B Rietberg, B Owens, T Parker, H Obaya, E Schiff","doi":"10.1159/000176358","DOIUrl":"https://doi.org/10.1159/000176358","url":null,"abstract":"Urea synthesis was examined in experimental uremia using the isolated perfused rat liver in order to assure strict control of substrate (NH4Cl) presented to the liver. Acute uremia was created in female Sprague-Dawley rats by bilateral nephrectomy (n = 7) 48 h prior to studies. Chronic uremia (8--14 weeks) was produced by right nephrectomy and segmental infarction of the left kidney in 7 rats. At infusion rates of NH4Cl (8.3 mumol/min) which resulted in prehepatic perfusate ammonia levels approximately twice the previously described Km value, livers of chronically uremic rats had slightly higher rates of urea production than controls (controls: 0.41 +/- 0.03; chronic uremia: 0.54 +/- 0.04 mumol/min/g of wet liver weight; p less than 0.02). In acute uremia, urea production was higher (0.66 +/- 0.05 mumol/min/g) than in sham-operated rats (0.59 +/- 0.05 mumol/min/g) but the differences did not achieve statistical significance. Simultaneously performed taurocholate transport studies did not reveal significant functional differences between the livers of uremic and control animals. The data suggest that urea production by livers of uremic rats is increased when compared to that of control animals.","PeriodicalId":19333,"journal":{"name":"Nutrition and metabolism","volume":"24 6","pages":"409-16"},"PeriodicalIF":0.0,"publicationDate":"1980-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1159/000176358","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"18233968","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: 5