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Biomedical subjects

M Romon

Publications and source records attributed to M Romon.

41 records · Page 3Linked to original sources

[Studies of lipoprotein lipase activity and adipocyte characteristics in the human: effect of obesity and diabetes (author's transl)].

Adipose tissue lipoprotein lipase activity (LPLA) and cellularity have been studied in controls, in diabetic or non-diabetic obese subjects and in insulin dependent diabetic patients. LPLA is increased in diabetic or non-diabetic obese subjects and in insulin dependent diabetic patients. LPLA is increased in diabetic or non-diabetic obese subjects (p less than 0.02) and decreased in insulin dependent diabetic patients (p less than 0.02). Adipocyte size is larger in obese subjects, whether diabetic or not (p less than 0.05). As defined by LPLA and cell size means, the different groups are related linearly. The implications of this relationship between LPLA and adipocyte size are considered.

Adipose Tissue↗

Recommendations regarding obesity surgery.

In France, 1,000 obese persons per month undergo a bariatric operation. Obesity surgery requires coordination and monitoring of aftercare. The French public health-care insurer asked the medical associations involved in obesity management to provide guidelines for obesity surgery. The recommendations were developed by the national associations of Obesity, Nutrition and Diabetes: the Association Française d'Etudes et de Recherches sur l'Obésité (AFERO), member of the EASO and IASO; the Association de Langue Française pour l'Etude du Diabète et des Maladies Métaboliques (ALFEDIAM); the Société Française de Nutrition (SFN); and the Société Française de Chirurgie de l'Obésité (SOFCO). This article presents the short version of the guidelines.

Bariatric Surgery↗

[Insulin and the metabolism of lipoproteins].

In normal individuals, insulin regulates lipoprotein metabolism. It increases hepatic triglycerides (TG) secretion and makes VLDL and chylomicrons post prandial removal easy by stimulating adipose tissue lipoprotein lipase (LPL). Insulin activity and cholesterol rich lipoprotein is more complicated: by its action on VLDL and chylomicrons turn-over, it influences LDL and HDL formation. It regulates cellular cholesterol pool at different levels: stimulation of LDL receptor, but also of HMG CoA reductase. Controlling LCAT, in participates in cholesterol removal by HDL. In insulin dependent diabetes, lack of adipose tissue LPL stimulation augments triglycerid-rich lipoproteins, by slowing their catabolism, resulting in a weak increase of LDL and a lowering of HDL. In non insulin dependent diabetes with hyperinsulinism, VLDL are elevated because of insulin stimulation of triglycerid hepatic production. LDL are increasing. HDL status remains discussed: HDL cholesterol is low but HDL triglycerid is high, there is no known disturbance of apo A level. In the two types of diabetes, although mechanism is different, perturbation of lipoprotein metabolism may account for the atherogenicity of this disorders.

Cholesterol↗