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Query: UMLS:C0028754 (obesity)
 124,988 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

Mediastinal abnormalities can present a challenging differential diagnosis. One of the many causes of superior mediastinal widening is excess deposition of fat or mediastinal lipomatosis. Mediastinal widening was evaluated by routine chest radiography, conventional tomography, and computed tomography in four patients with steroid induced Cushing's syndrome or simple obesity. Computed tomography was the only modality that definitively diagnosed mediastinal lipomatosis in each case.
J Comput Assist Tomogr 1978 Sep
PMID:Computed tomography in the evaluation of mediastinal lipomatosis. 70 14

Issuing from the present state of the influence of the basic nutritive substances (protein, fat, carbohydrates) and various nutritive factors discussed again and again (cholesterol, erucaic acid, sodium, calcium/magnesium quotient, pressor amines) on the development of the arteriosclerosis, the indididual factors of influence are critically evaluated. The investigations are getting under way, so that ascertained results are standing beside insufficiently claified or open problems, From the abundance of the observations conclusions are drawn which are of significance for practice. Unfavourable influences of nutrition on the factors of risk (hyperlipoproteinaemia, disturbance of the carbohydrate tolerance, hyperuricaemia, hyperalimentation) and on the manifest diseases (hypertension, diabetes mellitus, uric arthritis, obesity) of the metabolic syndrome which finally contribute to the development of arteriosclerosis are emphasized. In front of this background a clinically and ambulatorily tested basic metabolic diet is described. About 20% of the energy content (kcal or kJ) of this diet are protein, 35% fat and 45% are carbohydrates. The saturated fatty acids lie below 30%, the manifold saturated fatty acids, however, above 20% of the total fat proportion. The cholesterol content is below 400 mg, the purin-nitrogen below 200 mg, and the sodium content is about 2g per day. This diet can be produced for the treatment of persons with normal weight and overweight in different energetic degradations.
Z Gesamte Inn Med 1978 Sep 01
PMID:[Nutrition and arteriosclerosis]. 70

Adipose tissue cellularity of patients with endogenous hypertriglyceridemia whether associated with obesity or not has been studied by means of a semiautomatic method of counting and sizing osmium tetroxide fixed adipocytes. Cell population distributions were analyzed by mathematical computation. The Coulter Counter system was able to determine mean diameter (or volume) and cell size dispersion which defined adipocyte population. An overall shift of cell population size has been found to characterize adipose tissue cellularity of the different groups examined. Adipocyte population in the obese was defined by increased fat cell size with overlapping distributions between both groups of same weight. Nevertheless normolipemic obese patients were characterized by larger cell size than hypertriglyceridemic subjects matched for adiposity index. The results are discussed in relation to the removal defect found in endogenous hypertriglyceridemia.
Diabete Metab 1978 Sep
PMID:[Adipocyte size in primary hypertriglyceridemia with and without obesity (author's transl)]. 71 Jun 78

The role of the number and size of adipocytes in the pathogenesis of obesity is reviewed. The observation that hyperplasia of adipose tissue is associated with child-onset obesity was over-interpreted. Nevertheless most recent studies suggest that fact cell size and number are regulated and can influence food intake. The discovery of preadipocytes has opened a new field or research offering the possibility of new concepts in the prevention and therapy of obesity.
Fortschr Med 1978 Sep 14
PMID:[Adipose tissue and obesity. Part 1: fat cell size and fat cell number]. 71 Oct 90

We have estimated rates of fatty acid synthesis from glucose carbon and from all 2-carbon units in liver and carcass of mice using [U-14C] glucose and 3H2O under four different nutritional states. The liver synthesized only a small fraction (2--9%) of the fatty acids that were formed from glucose carbon in mice that were fasted 24 hr, fasted--refed, or fed ad libitum. However, in fed-refed mice, the liver's role increased and now accounted for 40% of the fatty acids that were formed from glucose carbon. Under the latter conditions (fed-refed), the liver synthesized 50% of the fatty acids that were formed from all 2-carbon units. At least five-sixths of all the fatty acids synthesized de novo in the fed-refed mouse were derived from carbon fed in the glucose test meal. These studies, in contrast to most earlier studies, provide direct evidence in mice of the major contribution that dietary carbohydrate makes, especially in the liver, to the synthesis of fatty acids. In addition, we have shown that lipogenic inhibition (fasting) and activation (feeding) are most marked in liver and greater for glucose than for non-glucose-carbon. Possible implications for dietary control of carbohydrate-induced hyperlipemia and obesity are discussed.
J Lipid Res 1978 Sep
PMID:Re-evaluation of lipogenesis from dietary glucose carbon in liver and carcass of mice. 71 47

Prolactin (PRL) and growth hormone (GH) secretions in mice rendered obese by the administration of gold thioglucose (GTG) are abnormal. The objective of the present experiments was to determine whether the effects were related to the drug or to the resultant obesity. Perphenazine-induced PRL release in normal mice and in GTG-injected non-obese mice was compared to that of GTG-injected obese mice after the initial development of obesity, after body weight reduction by diet control and after the resumption of obesity by ad lib. feeding. The GTG-injected mice which did not become obese had greater (50%) than normal levels of serum PRL following perphenazine stimulation in 2 of 3 experiments. This suggested that the injection of GTG directly affected the control mechanism for PRL secretion, but that the abnormal PRL secretion was probably not the cause of obesity that develops after GTG treatment. Perphenazine-induced PRL levels in mice rendered obese with GTG were much greater (2-3 times higher than normal). However, the unusually high levels of PRL were totally abolished when the body weights of these mice were brought down to normal by dietary restriction. Conversely, when obesity was permitted to recur by giving the mice free access to food, PRL levels reverted back to the original obese pattern. The concentrations of GH were usually lower than normal in GTG-obese mice, and these levels were also more often associated with the development of obesity than with the injection of GTG. The data show a marked influence of obesity on the control of PRL and GH secretions in the mouse.
Endocrinology 1976 Sep
PMID:Control of prolactin and growth hormone secretion in mice by obesity. 78 57

A study of the distribution of the various risk factors for coronary artery disease as a function of the age and sex of a homogenous population of 316 patients has brought to light the following findings: -- These was found to be a greater incidence (statistically significant) of hypertension disorders of glucose metabolism obesity and hypercholesterolaemia in the females, and of tobacco consumption (cigarettes) and, to a lesser extent, of hypertriglyceridaemia and of gout in the males; -- The females who 'tot up' risk factors have their myocardial infarction at a greater age than the males -- The risk factor which separates the two sexes in the consumption of cigarette tobacco. These findings agree with those already in the literature.
Arch Mal Coeur Vaiss 1976 Sep
PMID:[Myocardial infarction: comparative study of principal risk factors in the two sexes]. 82 69

The pattern of insulin response to oral and/or intravenous glucose has been claimed to be characteristic of diabetes and even prediabetes. To determine if differences in insluin secretion might explain the exceptionally high prevalence of diabetes in the Pima Indians, 26 genetically normal Pimas (nondiabetic offspring of nondiabetic parents), 32 genetically prediabetic Pimas (nondiabetic offspring of diabetic parents), 10 diabetic Pimas, and 29 normal Caucasians were studied. All subjects received an intravenous glucose tolerance test (IVGTT) to examine the acute-phase insulin response, and all nondiabetic subjects received an oral glucose tolerance test (OGTT) and arginine infusion (AI). The prediabetics also received a cortisone-primed oral glucose tolerance test (CGTT) and were classified by the result of this test. While acute-phase insulin release during the IVGTT was absent in the diabetics, there was a rapid response in all nondiabetics. Prediabetic Pimas with normal or abnormal CGTT had insulin levels similar to normal Indians during the IVGTT, OGTT, and AI. Thus, no evidence of impairment of acute- or late-phase insulin release was found. The normal and prediabetic Indians had fasting and stimulated insulin levels during all the tests two-to-threefold greater than the Caucasians. Differences in insulin levels between the two races could not be explained by differences in glucose level, age, or obesity.
Diabetes 1977 Sep
PMID:Unexplained hyperinsulinemia in normal and "prediabetic" Pima Indians compared with normal Caucasians. An example of racial differences in insulin secretion. 89 36

Studies of fat mobilization and transport are reported in six patients with the Prader-Willi syndrome. Two patients had carbohydrate intolerance. One of these had a low and the other an augmented insulin response to glucose challenge. Following challenge with glucose, three of the four nondiabetics had normal insulin responses or increased responses consistent with their obesity; the other nondiabetic had insulinopenia. Measurements of the effects of norepinephrine, insulin, glucose, and 5-methylpyrazole-3-carboxylic acid on plasma levels of FFA, glycerol, and ketones provide no evidence for abnormal regulation of mobilization of fat from adipose tissue. Measurements of plasma lipids and postheparin lipolytic activity are consistent with normal uptake of fat into adipose tissue, and normal fatty acid composition of adipose tissue gives no evidence for abnormal lipogenesis.
Diabetes 1977 Sep
PMID:The Prader-Willi syndrome. Regulation of fat transport. 89 39

A three-year study was undertaken in the general medical clinic of a private community hospital, to assess the health behavior, health status, and profile of function of stable chronic disease was developed and tested. It was shown that these patients used a disproportionate amount of health care services. Half of the group was treated by a nurse practitioner/physician team and half by a house officer/preceptor team. Patients in both groups behaved similarly. These patients: 1) made frequent demands for outpatient services but did not need more than average hospital care; 2) tended to have problems of socio-economic indigency; 3) were likely to have hypertension, obesity, arthritis, and functional disease; 4) were chiefly women; 5) required special visits 9 percent of the time, usually for exacerbations of illness or intercurrent health problems; 6) made greater demands if they had functional complaints as a primary or secondary health problem; and 7) viewed their health more positively and functioned at a higher level if they were over 65 years of age. It was also found that the nurse practitioner, working in consultation with a physician, was able to provide high-quality health care.
J Am Geriatr Soc 1977 Sep
PMID:Stable chronic disease: a behavioral model. 89 11


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