A high frequency of hyperandrogenism, PCOM, and PCOS is observed in DM1, which appears to be associated with intensive insulin treatment.

These data confirm that PCOM in healthy non-hyperandrogenic girls with regular menstrual cycles is prevalent and is not associated with hyperandrogenism. The elevated AMH and lower FSH levels observed in healthy girls with regular menses and PCOM suggest that this ovarian pattern is secondary to a larger number of 2-5 mm follicles. An elevated AMH level is suggestive of the presence of PCOM during adolescence.

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The prevalence of obesity among children and adolescents is progressively increasing around the world. One of the important consequences of obesity is the development of insulin resistance (IR). This condition has a multifactorial pathogenesis and is associated with cardiovascular risk, diabetes, hypertension, polycystic-ovary syndrome and a shorter lifespan. IR during childhood may be diagnosed by physical examination or there may be clues in the histories of the patient and his/her family. When IR is suspected, tests on a blood sample (which are more reliable) are recommended. Most of the biochemical markers have been well defined in adults, but appropriate reference data for children are still lacking. Here we discuss the usefulness of various currently known biochemical markers to evaluate insulin sensitivity (homeostatic model assessment, the quantitative insulin sensitivity check index, the oral glucose tolerance test, Matsuda method and the whole-body insulin resistance index), hormones (leptin, adiponectin, resistin, glucocorticoids, the insulin-like growth factor-1-binding protein/growth hormone axis, ghrelin, sex hormone-binding globulin and retinol-binding protein-4) and inflammatory markers (C-reactive protein, IL-6, intercellular adhesion molecule-1, vascular adhesion molecule-1 and E-selectin), which can be used in the diagnosis of IR in children.

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