The objective was to determine whether recombinant bovine somatotropin (rbST) enhanced live performance,skeletal muscle biological activity, and beta-adrenergic receptor expression of feedlot heifers during the finishing phase.
Alex Thompson +8 more
doaj +4 more sources
Characterization of human somatotropin binding to detergent-solubilized lactogenic receptors from rat liver. [PDF]
Lactogenic receptors from rat liver microsomal fraction (‘microsomes’) were extracted by treatment with 1% (w/v) Triton X-100. Triton X-100 exerts an inhibitory effect on both the binding reaction and the separation of the free hormone from the complex.
Juan S. Bonifacino +2 more
semanticscholar +3 more sources
Neither bovine somatotropin nor growth hormone-releasing factor alters expression of thyroid hormone receptors in liver and mammary tissues. [PDF]
Physiological effects of thyroid hormones are mediated primarily by binding of triiodothyronine to specific nuclear receptors. Organ-specific changes in production of triiodothyronine from its prohormone, thyroxine, have been hypothesized to target the action of thyroid hormones on the mammary gland and play a role in mediating or augmenting a ...
Anthony V. Capuco, M. Binelli, H. Tucker
semanticscholar +3 more sources
Structures of the somatotropin receptor and prolactin receptor on rat hepatocytes characterized by affinity labelling. [PDF]
Human somatotropin competed for 125I-human somatotropin binding to hepatocytes from female or male rats. Bovine somatotropin and prolactin each inhibited part, but not all, of the uptake of 125I-human somatotropin. The binding of 125I-prolactin was inhibited by human somatotropin and prolactin, but not by bovine somatotropin.
Kazuyo Yamada, David B. Donner
semanticscholar +3 more sources
Background. Oligonucleotides (OLNs) can participate in a wide range of protein-ligand interactions and perform numerous cellular functions by forming structures that enable specific interactions with DNA, RNA, and proteins, what is crucial for many ...
O. Nuzhnyi, R. Nikolaiev, Z. Tkachuk
semanticscholar +5 more sources
Binding in vitro to rat liver receptors does not correlate with activities in vivo of bovine somatotropin. Use of chemically modified derivatives as probes. [PDF]
Bovine somatotropin with an increasing number of its carboxylate groups modified by reaction with glycine methyl ester in the presence of a water-soluble carbodi-imide was tested for its activity in different bioassays. Only those derivatives which were known to be active in the body-weight-increase bioassay were able to compete with 125I-labelled ...
Leonor P. Roguin +3 more
semanticscholar +3 more sources
A rational drug design approach, capitalizing on structure-activity relationships and involving transposition of functional groups from somatotropin release inhibitory factor (SRIF) into a reduced size cyclohexapeptide template, has led to the discovery of SOM230 (25), a novel, stable cyclohexapeptide somatostatin mimic that exhibits unique high ...
I. Lewis +6 more
semanticscholar +3 more sources
Lactating Holstein cows were used to assess the effect of bovine somatotropin (bST; n = 8) and fasting (FAST; n = 4) on ligand binding to beta-adrenergic (BAR) and Type-1 adenosine (A1R) receptors in adipose tissue.
K. Houseknecht +3 more
semanticscholar +3 more sources
Significant down-regulation of growth hormone receptor expression revealed as a new unfavorable prognos- tic factor in hepatitis C virus-related hepatocellular carcinoma [PDF]
Background/Aims Growth hormone (GH) is the main regulator of somatic growth, metabolism, and gender dimorphism in the liver. GH receptor (GHR) signaling in cancer is derived from a large body of evidence, although the GHR signaling pathway involved in ...
Ching-Chih Lin +9 more
doaj +1 more source
Somatostatin and Its Receptor System in Colorectal Cancer
Somatostatin (SST)/somatotropin release-inhibiting factor (SRIF) is a well-known neuropeptide, widely distributed in the central and peripheral nervous systems, that regulates the endocrine system and affects neurotransmission via interaction with five ...
Aldona Kasprzak
doaj +1 more source

