Effects of nutrition on age at puberty, return to oestrus after weaning, ovulation rate and embryo survival have been observed in the pig. Nutrition may influence reproduction at the three levels of the hypothalamic–pituitary–ovarian axis via neuroendocrine pathways and/or variation in metabolic clearance of reproductive hormones. For instance, undernutrition impairs the gonadotrophin-releasing...

Neuroimmune Biology (NIB) was conceived in 2000. At that time it was predicted that neuroimmune mechanisms play a major regulatory role in Biology. Hence the term, Neuroimmune Biology was introduced [1]. Now it is apparent that in feto-maternal interactions, which represent Reproduction Biology, the Neuroimmune Supersystem plays a fundamental role. Reproduction Biology is a perfect example for ...

Endocrinology analyzes the biosynthesis of hormones, their sites of production, and the sites and mechanisms of their action and interaction. The term hormone is of Greek origin and classically refers to chemical messengers that circulate in body fluids and produce specific effects on cells distant from their point of origin. The major functions of hormones include the regulation of energy stor...

\Vc have studied the effects of insulin, epidermal growth factor (EGF), fibroblast growth factor (FGF), platelet-derived growth factor, and steroid hormones (estradiol, progesterone, and cortisol) on human meningioma cell proliferation and DNA synthesis in a serum-free culture system. The growth factors, particularly EGF and FGF, increased DNA synthesis in a dose-dependent manner as measured by...

We have studied the effects of insulin, epidermal growth factor (EGF), fibroblast growth factor (FGF), platelet-derived growth factor, and steroid hormones (estradiol, progesterone, and cortisol) on human meningioma cell proliferation and DNA synthesis in a serum-free culture system. The growth factors, particularly EGF and FGF, increased DNA synthesis in a dose-dependent manner as measured by ...

\Vc have studied the effects of insulin, epidermal growth factor (EGF), fibroblast growth factor (FGF), platelet-derived growth factor, and steroid hormones (estradiol, progesterone, and cortisol) on human meningioma cell proliferation and DNA synthesis in a serum-free culture system. The growth factors, particularly EGF and FGF, increased DNA synthesis in a dose-dependent manner as measured by...

Thyroid hormones are essential for normal brain development, growth and energy metabolism [1]. During early pregnancy, the foetus is entirely dependent on maternal thyroid hormones and in the second and third trimesters, maternal thyroid hormones continue to provide sufficient thyroid hormones until birth [2,3]. Maternal thyroid disease is common during pregnancy with hyperthyroidism during pre...

introduction: ghrelin increases growth hormone secretion and food intake. growth hormone (gh), steroid hormones and opioids are involved in the regulation of food intake. so, they may have a role in the regulation of ghrelin secretion. we determined the effect of intravenous injections of progesterone, gh and morphine or co-administration of these hormones on ghrelin concentration and body weig...

This study compares consumer valuations of beef steaks from cattle produced without growth promotants or genetically modified corn in France, Germany, the United Kingdom, and the United States. In general, European consumers place a higher value on beef from cattle that have not been administered growth hormones and/or fed genetically modified corn than United States consumers. There is a large...

Increased levels of vascular endothelial growth factor (VEGF) are associated with a poor response of breast cancer to anti-hormone treatment. Although VEGF is regarded as an endothelial-specific growth factor, recent reports have shown that VEGF can promote proliferation of other cell types, including breast tumor cells. We have characterized the proliferative effects of VEGF in breast cancer c...