Thyroid hormones and seasonal reproductive neuroendocrine interactions

Genistein Effects on Reproductive and Thyroid Hormones

Thyroid hormones and male reproductive system

Experimental hypothyroidism during sexual development Testes size and number of spermatozoa in adulthood are determined by postnatal/pubertal proliferation of seminal tubule somatic cell constituents, the Sertoli cells. Cessation of proliferation of Sertoli cells during early development occurs concomitantly with formation of their terminally differentiated population. Transient experimental hy...

Interactions of metabolic syndrome and thyroid hormones

The prevalence of metabolic syndrome worldwide is high and rising (Alexander Diabetes 52: 1210, 2003; Cameron Endocrinol Metab Clin North Am 33: 351, 2004). According to all definitions visceral obesity, increased triglycerides, decreased HDL cholesterol, impaired glucose tolerance and increased blood pressure are part of the definition. Thyroid hormones impact on all these factors. In a large ...

Thyroid hormones states and brain development interactions.

The action of thyroid hormones (THs) in the brain is strictly regulated, since these hormones play a crucial role in the development and physiological functioning of the central nervous system (CNS). Disorders of the thyroid gland are among the most common endocrine maladies. Therefore, the objective of this study was to identify in broad terms the interactions between thyroid hormone states or...

Paracrine Interactions of Thyroid Hormones and Thyroid Stimulation Hormone in the Female Reproductive Tract have an Impact on Female Fertility

Thyroid disease often causes menstrual disturbances and infertility problems. Thyroid hormone (TH) acts through its receptors, transcription factors present in most cell types in the body. Thyroid stimulating hormone (TSH) stimulates TH synthesis in the thyroid gland, but seems to have other functions as well in the female reproductive tract. The receptors of both TH and TSH increase in the rec...