Zobrazeno 1 - 10
of 53
pro vyhledávání: '"RA Ehrhardt"'
Autor:
Stephanie R. Wesolowski, Sarah L. Giesy, Andreas Foskolos, W. Ronald Butler, Susan M. Quirk, RA Ehrhardt, Yves R Boisclair, Matthew R Waldron, Christopher Steven Krumm
Publikováno v:
Journal of Endocrinology. 229:145-157
Mammals meet the increased nutritional demands of lactation through a combination of increased feed intake and a collection of adaptations known as adaptive metabolism (e.g., glucose sparing via insulin resistance, mobilization of endogenous reserves
Publikováno v:
Animal, Vol 9, Iss 11, Pp 1852-1858 (2015)
Ruminants remain productive during the energy insufficiency of late pregnancy or early lactation by evoking metabolic adaptations sparing available energy and nutrients (e.g. higher metabolic efficiency and induction of insulin resistance). A deficit
Publikováno v:
American Journal of Physiology-Regulatory, Integrative and Comparative Physiology. 295:R1455-R1462
Energy balance controls the expression of the leptin receptor (Lepr) in the ruminant hypothalamus but whether similar regulation occurs in peripheral tissues is unknown. To address this issue, we measured Lepr expression in the liver and adipose tiss
Autor:
Stuart J. Frank, M.E. Van Amburgh, Yves R. Boisclair, Jin Wook Kim, Robert P. Rhoads, RA Ehrhardt
Publikováno v:
Journal of Endocrinology. 195:49-58
Dairy cows enter a period of energy insufficiency after parturition. In liver, this energy deficit leads to reduced expression of the liver-specific GH receptor transcript (GHR1A) and decreased GHR abundance. As a consequence, hepatic processes stimu
Autor:
Yves R. Boisclair, S. S. Block, Alan W. Bell, Lance H. Baumgard, Robert P. Rhoads, Nthabisheng Segoale, Dale E. Bauman, Brian J Leury, RA Ehrhardt
Publikováno v:
American Journal of Physiology-Regulatory, Integrative and Comparative Physiology. 285:R1107-R1115
After parturition, dairy cows suffer from an intense energy deficit caused by the onset of copious milk secretion and an inadequate increase in voluntary food intake. We previously showed that this energy deficit contributes to a decline in plasma le
Autor:
M.E. Van Amburgh, Yves R. Boisclair, J.M. Smith, M.C. Diaz, RA Ehrhardt, S. S. Block, Robert P. Rhoads
Publikováno v:
Europe PubMed Central
Leptin is thought to play a critical role in regulating energy metabolism throughout mammalian life. In growing dairy cattle, plasma leptin has been proposed as a partial mediator of the effects of nutrition on reproductive and mammary development. H
Publikováno v:
Journal of Endocrinology. 171:339-348
Dairy cows suffer from an intense energy deficit at parturition due to the onset of copious milk synthesis and depressed appetite. Despite this deficit, maternal metabolism is almost completely devoted to the support of mammary metabolism. Evidence f
Publikováno v:
Domestic Animal Endocrinology. 21:85-96
Maternal plasma leptin is elevated during pregnancy in several species, but it is unclear to what extent this elevation reflects changes in adiposity or energy balance. Therefore, Karakul ewes ( n = 8) were fed to minimize changes in maternal energy
Publikováno v:
American Journal of Physiology-Regulatory, Integrative and Comparative Physiology. 279:R2252-R2261
We immunolocalized the GLUT-3 glucose transporter isoform versus GLUT-1 in the late-gestation epitheliochorial ovine placenta, and we examined the effect of chronic maternal hyperglycemia and hypoglycemia on placental GLUT-3 concentrations. GLUT-3 wa
Publikováno v:
Journal of Endocrinology. 166:519-528
Studies of leptin in large domestic ruminants have been limited to measurements of gene expression because methods to measure circulating levels are not available. To develop a bovine leptin radioimmunoassay, we produced recombinant bovine leptin and