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Biomedical subjects

J Vague

Publications and source records attributed to J Vague.

At least 19 recordsLinked to original sources
PubMed1989

[Sexual differentiation of the adipose tissue-muscle ratio. Its metabolic impact].

Muscle and fat development are regulated by opposite and also cooperating factors. Adipo-muscular ratio is the result of those forces. The need of a determined fat mass and of its corollary a determined muscle mass is an important physiologic parameter. Sexual differentiation is the main factor adipo-muscular ratio. Feminine fat is twice as big as masculine fat: it predominates in the lower body, masculine fat in the upper body. Brachio-femoral adipo-muscular ratio is, among others, a good index of fat sexual differentiation. Android obesity, predominating in both sexes in the upper body, is, with genetic predispositions, the main factor of non insulin dependent diabetes carbohydrate sensitive hyperlipoproteinemia, hyperuricemia, atherosclerosis. Easy determination on fat topography before the age of 30 is, particularly in women, the best tool for an efficacious prophylaxis of obesity's metabolic complications.

Adipose Tissue↗
PubMed1979

[Plasma cortisol response to intravenous beta 1-24 corticotropin as related to the fat mass and its topographic localisation (author's transl)].

Plasma cortisol response induced by 2.5 microgram/kg beta 1-24 corticotropin (1 hour infusion) in obese females was not related to fat mass. The response was increasingly pronounced as fat predominated in the upper body segment, i.e. android obesity. This phenomenon may be interpreted as indicating an increased adrenal capacity to secrete cortisol in such obese patients. Low level but longstanding excess cortisol secretion is probably the cause of the android features of obesity.

Adipose Tissue↗
PubMed1978

[Whited Addison's disease. Eight cases (author's transl)].

In 8 cases of Addison's disease due to adrenal tuberculosis, the substitutive treatment appeared unnecessary since more than one year. Urinary 17-OHCS were in the normal range but did not rise after ACTH injection except in two cases. In all the cases, plasma ACTH was elevated but lower than in severe adrenal insufficiency, and in the range of those observed in congenital adrenal hyperplasia. The nycthemeral variation of plasma ACTH were maintained. Therefore, an apparently normal basal cortico-adrenal function was obtained by an excessive stimulation by endogenous ACTH. The one year prescription of anti-tuberculosis chimiotherapy to 6 of these patients was possibly responsible for the partial reversal of adrenal insufficiency. However the substutive therapy appears needless in every day life, such a treatment would eventually be necessary during stress conditions.

Addison Disease↗
PubMed1978

[Adipose tissue cellularity and skinfold thickness of the deltoid and retrotrochanteric areas in obese women (author's transl)].

301 women, 261 of them obese, were the subject of an anthropometric study of brachial and femoral adipomuscular ratio, adipocytometry in the deltoid and retro-trochanteric areas and oral glucose tolerance. Deltoid adipocyte volume was highly correlated (p less than 0,001) with total fat deposition in this area, while no such relationship was found in the retrotrochanteric area. In obese women with chemical or overt diabetes, deltoid adipose cells were significantly larger than those of non-diabetic obese women. This, however, was not the case for retro-trochanteric adipose cells.

Adipose Tissue↗
PubMed1978

Defective acute insulin secretion in diabetics. Differences between normal weight and obese subjects.

The acute insulin responses to intravenous glucose and tolbutamide were studied serially in middle aged subjects with a wide spectrum of glucose tolerance. Eighty were of normal weight, 102 frankly obese. In normal weight patients, insulin response to glucose, subnormal in chemical diabetes, was almost absent when fasting blood glucose was elevated. Tolbutamide evoked a normal response provided that the fasting blood glucose was lower than 125 mg/100 ml. The response decreased dramatically thereafter. In the obese the response decreased dramatically thereafter. In the obese the response to glucose was decreased in chemical diabetics compared to non-diabetics, but failed completely only when the fasting glycemia exceeded 200 mg/100 ml. The response to tolbutamide decreased only with fasting glycemia in excess of 200 mg/100 ml. When insulin responses were expressed relative to basal insulin values the differences between non diabetic obese and normal weight subjects disappeared but this was not true of the other categories. These findings demonstrate that the B-cell responses differ not only quantitatively but also in kind between normal weight and obese diabetics. Six cases of incipient juvenile diabetes (100 less than fasting blood glucose less than 125 mg/100 ml) showed no insulin response to glucose nor to tolbutamide in contrast to the comparable weight group of maturity onset diabetics.

Adult↗
PubMed1977

[Male pseudohermaphroditism. Etiologic diagnosis. 2].

The cause of male pseudohermaphroditism : polydystrophy, gonadal dysplasia, agenesis or precocious abiotrophy of Leydig cells, defect of testicular stimulation by foetal hypophysis, testosterone, biosynthesis abnormalities 5 varieties of which are identified, 5 alpha reductase defect, testosterone or dihydrotestosterone insenstivity complete and incomplete forms, defect of secretion or action of Mullerian ducts inhibitor can be found in the majority of cases by clinical and para-clinical analysis. Practical management results from this diagnosis.

Adolescent↗
PubMed1977

[Abnormalities of insulin secretion in coronary patients. Apropos of 67 cases].

The curve of blood insulin levels recorded during the oral provoked hypoglycaemia test (OPHG) was studied in 67 proven coronary patients. None of the curves obtained was normal. The abnormalities found in this way are of two types: either a hypoinsulinaemic response, with a high non-retarded peak (type 1) or a high retarded peak (type 2), or else a hypoinsulinaemic response, with a flat curve (type 3) or a very small late peak (type 4). The possible role of these abnormalities of insulin secretion in the pathogenesis of atheroma is discussed. The correlations between age, sex, obesity, hypertriglyceridaemia, and the OPHG curve are investigated. The preliminary results of a test in which insulin levels are monitored after intravenous provoked hypoglycaemia, followed by tolbutamide, are reported.

Adult↗