Abstract Global warming has great impacts on plant growth and development, as well ecological distribution. Plants constantly perceive environmental temperatures adjust their development programs accordingly to cope with the environment under non-lethal warm temperature conditions. Plant hormones are endogenous bioactive chemicals that play central roles in growth, developmental, responses biot...

Hormones are both growth stimulatory and growth inhibitory in utero. They regulate tissue growth and development by controlling the rates of cell proliferation, apoptosis and differentiation in many fetal tissues. They also signal the level of resources available for intrauterine growth to the fetal tissues and relay back to the placenta the degree of mismatch between the actual fetal nutrient ...

The thyroid hormones, thyroxine (T4) and triiodothyronine (T3), are essential for normal growth and development of the fetus. Their bioavailability in utero depends on development of the fetal hypothalamic-pituitary-thyroid gland axis and the abundance of thyroid hormone transporters and deiodinases that influence tissue levels of bioactive hormone. Fetal T4 and T3 concentrations are also affec...

Unlike other mammals, Old World primates have five growth hormone-like genes that are highly divergent at the amino acid level from the single growth hormone genes found in nonprimates. Additionally, there is a change in the interaction of growth hormone with its receptor in humans such that human growth hormone functions in nonprimates, whereas nonprimate growth hormone is ineffective in human...

objective: there are several factors, like environmental agents, neurotrophic factors, serotonin and some hormones such as estrogen, affecting neurogenesis and neural differentiation. regarding to importance of proliferation and regeneration in central nervous system, and a progressive increase in neurodegenerative diseases, cell therapy is an attractive approach in neuroscience. the aim of the...

In another communication we have reported partial Nterminal amino acid sequences for growth hormones (somatotropins) of several species (1) ; these studies have indicated that whale, monkey, and human growth hormones are singlechain polypeptides at their N-terminus. To seek further evidence that these proteins are made up of single polypeptide chains, as well as to make additional comparisons w...

Micro-pollutants especially estrogens, progesterone, androgens, glucocorticoids, and growth hormones, are biological chemical impurities that find their way into natural aquatic environments in trace quantities (ng/L), possess a significant disturbance by impacting human life. Due to the progress analysis detection techniques, these elements have been observed quantified several studies. Howeve...

Ageing is doubtless complicated, lifelong process regarding many body systems, including endocrine system. Human hormonal system changes with age. Although these changes concern secretion of many hormones, they are not unidirectional, there are hormones secretion of which is diminished, whereas secretion of the others is augmented or not changed with age. A possible role of hormones which are o...

OBJECTIVE The purpose of this paper is to present an overview of the interrelationship between hormones, nutrition, and wound healing. METHODS The data on various hormones and their effects on specific elements of nutrition and wound healing are reviewed. RESULTS The key anabolic hormones are human growth hormone, insulin-like growth factor-1, insulin, and testosterone and its analogs. Alth...

The objective of this study was to investigate the effects root cutting stress on dynamic changes endogenous hormone content and growth characteristics Quercus variabilis roots, explore physiological role hormones in regulating root-crown interactions short term. morphological contents normal roots (no cutting, CK) cut (cut by 1/3 length main root, RP) were determined liquid chromatograp...