Search results for "insuline"
showing 4 items of 44 documents
Diabetes and Dementia
2015
Persons with type 2 diabetes mellitus (DM2) have an increased incidence of cognitive decline and dementia. An increased cortical and subcortical atrophy has been found after controlling for vascular disease and inadequate cerebral circulation. A possible role of insulin resistance and hyperinsulinemia has been suggested to mediate the link between DM2 and Alzheimer’s Disease (AD). Altered insulin signaling may contribute to AD biochemical and histopathological lesions. Both hyperglycemia and hypoglycemia may contribute to cognitive decline in DM2. Recurrent symptomatic and asymptomatic hypoglycemic episodes have been suggested to cause subclinical brain damage, and permanent cognitive impai…
The importance of diagnosing the Polycystic Ovary Syndrome
2000
The polycystic ovary syndrome (PCOS) is an extremely common disorder that occurs in 4% to 7% of women of reproductive age. Although PCOS is known to be associated with reproductive morbidity and increased risk for endometrial cancer, diagnosis is especially important because PCOS is now thought to increase metabolic and cardiovascular risks. These risks are strongly linked to insulin resistance and are compounded by the common occurrence of obesity, although insulin resistance and its associated risks are also present in nonobese women with PCOS. Women with PCOS are at increased risk for impaired glucose tolerance, type 2 diabetes mellitus, and hypertension. Cardiovascular disease is believ…
Ovarian and Adrenal Hyperandrogenism
2007
Because in normal women androgens are secreted in almost equal quantities by both adrenals and ovaries, for many years many studies have tried to distinguish the source of androgen excess. However, in the last 10-15 years, the diagnoses of ovarian or adrenal hyperandrogenism have almost disappeared. This is due to the lack of specificity of dynamic tests as well as to the emphasis given on clinical information and ovarian sonography for the diagnosis of hyperandrogenic syndromes. However, determination of the source of increased androgens may still be useful for improving the classification and the understanding of androgen excess disorders. The aim of this review is to examine the source o…
Hyperinsulinemia, hyperproinsulinemia and insulin resistance in the metabolic syndrome.
1996
For better comprehension of the metabolic syndrome, it is necessary to differentiate the effect of insulin on glucose metabolism on the one hand, and on other metabolic activities on the other hand. Whereas glucose utilization is affected by insulin resistance, the effect of insulin on lipid metabolism, ion and aminoacid transport does not seem to be diminished. Lipid metabolism, however, seems to play a crucial role in the induction of the vicious cycle. Increased energy and fat ingestion may be due to an increased number of galanin secreting cells in the hypothalamus. The excessive fat intake results in an increased rate of release of insulin and increased influx of triglycerides into the…