Endocrine Abstracts

When it is limited the amount and quality of protein intake plays a role in determining the amount of skeletal muscle and the amount of essential amino acids (EAA) may be the primary determinant in this process. The purpose of this retrospective analysis was to examine the relationship between protein and EAA intake and the level of muscle mass in healthy omnivore (Om), vegan (Veg), and (OLV) Caucasian women. 21 Om, 22 OLV and 20 Veg were recruited. Women were sedentary, as as...

Background: Puberty is the growth process associated with appearance of both primary and secondary sexual characteristics in children. Delayed puberty is defined clinically by the absence or incomplete development of secondary sexual characteristics bounded by an age at which 95 percent of children of that sex and culture have initiated sexual maturation.Methods: Some of the children participants were already being followed for constitutional delay in gr...

The aim of this study was to determine the changes of cortisol and T3 (triiodothyronine) levels in Acanthopagrus latus, a marine euryhaline teleost, in response to a wide range of salinities. The first experiment was carried out following exposure of juvenile yellowfin seabream to 5, 20, 42 and 60‰ environments. In the second experiment, the fish were assigned to a gradual adaptation to freshwater. Yellowfin seabream was capable of tolerating direct ex...

Two growth hormone releasing hormone-like peptides (GHRH-LP-1 and GHRH-LP-2) are expressed in chickens. Although GHRH-LP-1 displaces the binding of labelled human GHRH to chicken pituitary membranes and stimulates the accumulation of cAMP in HEK 293 cells transfected with the chicken (c) GHRH receptor it has <1% of the potency of human GHRH1–32 and has little, if any, growth hormone (GH) - releasing activity in chickens. GHRH-LP-1 is thus unlikely to be the...

Pituitary adenylate cyclase activating polypeptide - related peptide (PRP) (formerly known as growth hormone releasing hormone-like peptide GHRHLP) can act as a hypophysiotropic factor in several teleosts by stimulating growth hormone (GH) secretion. However, as yet, no information on this peptide as a regulator of reproduction exists. Recently, the full-length PRP cDNA was cloned in the blue gourami (Trichogaster trichopterus) and was found to be expressed in the brain...