Results 21 to 30 of about 9,959 (228)

Thyrotropin-releasing hormone receptors -- similarities and differences [PDF]

open access: yesJournal of Molecular Endocrinology, 2003
Thyrotropin-releasing hormone (TRH) initiates its effects by interacting with cell-surface membrane receptors. Two G protein-coupled receptors for TRH, TRH receptor type 1 (TRH-R1) and TRH receptor type 2 (TRH-R2), have been cloned from mammals. In this review, we compare TRH-R1 and TRH-R2 with regard to their tIssue distribution, binding affinities ...
Y, Sun, X, Lu, M C, Gershengorn
openaire   +2 more sources

Distinct and histone-specific modifications mediate positive versus negative transcriptional regulation of TSHalpha promoter. [PDF]

open access: yesPLoS ONE, 2010
Hormonally-regulated histone modifications that govern positive versus negative transcription of target genes are poorly characterized despite their importance for normal and pathological endocrine function.
Dongqing Wang   +4 more
doaj   +1 more source

Characterization of hypothalamo–pituitary–thyroid axis gene expression in the hypothalamus, pituitary gland, and ovarian follicles of turkey hens during the preovulatory surge and in hens with low and high egg production

open access: yesPoultry Science, 2021
Dysregulation of the preovulatory surge (PS) leads to lowered egg production. The hypothalamo–pituitary–thyroid (HPT) axis has been shown to influence plasma progesterone levels and follicle ovulation.
Kristen Brady   +3 more
doaj   +1 more source

Cloning and Characterization of the Chicken Thyrotropin-Releasing Hormone Receptor* [PDF]

open access: yesEndocrinology, 1998
We report on the cloning of the full-length complementary DNA for the chicken TRH receptor. Although the TRH receptor has been cloned from several mammalian species, this is the first report from another vertebrate class. The ligand binding pocket, which is situated in the transmembrane helices of the mouse and rat TRH receptors, is completely ...
Y M, Sun   +4 more
openaire   +3 more sources

Impact of One-Week Administration of Dihydrotestosterone in Rat Anterior Pituitary Gland

open access: yesInternational Journal of Endocrinology, 2022
Hyperandrogenism causes dysfunction of the hypothalamic–pituitary–gonadal (HPG) axis in reproductive women. In this study, we examined the effects of dihydrotestosterone (DHT) on characteristic changes in rat anterior pituitary gland samples.
Haruhiko Kanasaki   +6 more
doaj   +1 more source

Taltirelin is a superagonist at the human thyrotropin-releasing hormone receptor [PDF]

open access: yesFrontiers in Endocrinology, 2012
Taltirelin (TAL) is a thyrotropin-releasing hormone (TRH) analog that is approved for use in humans in Japan. In this study, we characterized TAL binding to and signaling by the human TRH receptor (TRH-R) in a model cell system. We found that TAL exhibited lower binding affinities than TRH and lower signaling potency via the inositol-1,4,5 ...
Thirunarayanan, Nanthakumar   +2 more
openaire   +3 more sources

AASLD practice guidance on drug, herbal, and dietary supplement–induced liver injury

open access: yes, 2022
Hepatology, EarlyView.
Robert J. Fontana   +6 more
wiley   +1 more source

Liver X receptor regulation of thyrotropin-releasing hormone transcription in mouse hypothalamus is dependent on thyroid status. [PDF]

open access: yesPLoS ONE, 2014
Reversing the escalating rate of obesity requires increased knowledge of the molecular mechanisms controlling energy balance. Liver X receptors (LXRs) and thyroid hormone receptors (TRs) are key physiological regulators of energetic metabolism. Analysing
Rym Ghaddab-Zroud   +4 more
doaj   +1 more source

Leptin increases sympathetic nerve activity via induction of its own receptor in the paraventricular nucleus

open access: yeseLife, 2020
Whether leptin acts in the paraventricular nucleus (PVN) to increase sympathetic nerve activity (SNA) is unclear, since PVN leptin receptors (LepR) are sparse.
Zhigang Shi   +7 more
doaj   +1 more source

Dimerization of the thyrotropin-releasing hormone receptor potentiates hormone-dependent receptor phosphorylation [PDF]

open access: yesProceedings of the National Academy of Sciences, 2007
The G protein-coupled thyrotropin (TSH)-releasing hormone (TRH) receptor forms homodimers. Regulated receptor dimerization increases TRH-induced receptor endocytosis. These studies test whether dimerization increases receptor phosphorylation, which could potentiate internalization.
Gyun Jee, Song   +2 more
openaire   +2 more sources

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