Deficiency of growth hormone-releasing hormone signaling is associated with sleep alterations in the dwarf rat.

Linear Growth Deficiency in b-Thalassemia Patients: Is It Growth Hormone Dependent?

Background: b-Thalassemia major is a serious medical problem.Growth retardation is commonly seen in poly-transfused b-thalassemia patients. The exact mechanism of short stature in childrenwith thalassemia major is not well understood, however, it isbelieved to be multi-factorial.Objective: To study the growth state and its relationship to growthhormone (GH) deficiency in b-thalassemia patients....

Sleep deprivation increases rat hypothalamic growth hormone-releasing hormone mRNA.

Much evidence indicates that growth hormone-releasing hormone (GHRH) is involved in sleep regulation. We hypothesized that GHRH mRNA would increase and somatostatin (SRIH) mRNA would decrease during sleep deprivation. With the use of RT-PCR and truncated internal standards, rat hypothalamic GHRH mRNA and SRIH mRNA levels were evaluated after sleep deprivation. After 8 or 12 h of sleep deprivati...

Comparison of Expression of Growth Hormone-Releasing Hormone and Its Receptor Splice Variant 1 in Different Stages of Endometriosis

P-24: Opioid and Progesterone Signaling Is Obligatoryfor Early Human Embryogenesis

Background: The growth factors that drive the division and differentiation of stem cells during early human embryogenesis are unknown. The secretion of endorphins, progesterone (P(4)), human chorionic gonadotropin, 17beta-estradiol, and gonadotropin-releasing hormone by trophoblasts that lie adjacent to the embryoblast in the blastocyst suggests that these pregnancy-associated factors may direc...

The Dwarf Phenotype in GH240B Mice, Haploinsufficient for the Autism Candidate Gene Neurobeachin, Is Caused by Ectopic Expression of Recombinant Human Growth Hormone

Two knockout mouse models for the autism candidate gene Neurobeachin (Nbea) have been generated independently. Although both models have similar phenotypes, one striking difference is the dwarf phenotype observed in the heterozygous configuration of the GH240B model that is generated by the serendipitous insertion of a promoterless human growth hormone (hGH) genomic fragment in the Nbea gene. I...