Abstract：
:Plasma corticosteroid concentrations are altered in pregnancy, during the reproductive cycle and by ovariectomy in many species. This study was designed to examine basal ACTH and cortisol in ewes of four different reproductive statuses: ovariectomized, nonpregnant cycling, nonpregnant noncycling, and pregnant. Blood samples were drawn every 4 hr for 48 hr from ewes during quiet, undisturbed conditions and analyzed for plasma ACTH, cortisol and progesterone concentrations. There were no significant changes in ACTH, cortisol or progesterone over time. Mean progesterone concentrations were significantly greater in the pregnant ewes than in all other ewes, and were greater in cycling ewes than noncycling or ovariectomized ewes. Mean ACTH was significantly greater in pregnant ewes than noncycling ewes, and mean cortisol was significantly greater in cycling ewes than in nonpregnant cycling or noncycling ewes. Ovariectomized ewes also had significantly greater mean cortisol concentrations than cycling ewes. The results demonstrate that there is an increase in basal ACTH and cortisol in ovine pregnancy.
journal_name
Domest Anim Endocrinoljournal_title
Domestic animal endocrinologyauthors
Bell ME,Wood CE,Keller-Wood Mdoi
10.1016/0739-7240(91)90060-wsubject
Has Abstractpub_date
1991-04-01 00:00:00pages
245-54issue
2eissn
0739-7240issn
1879-0054pii
0739-7240(91)90060-Wjournal_volume
8pub_type
杂志文章abstract：:The effect of endotoxin on follicular growth and on secretion of LH, estradiol-17beta, progesterone and cortisol during the proestrous phase in cattle was investigated. Holstein heifers were treated with PGF2alpha at 11-13 d after ovulation to induce luteolysis. At 42 hr after PGF2alpha treatment, heifers were adminis...
journal_title：Domestic animal endocrinology
pub_type： 杂志文章
doi：10.1016/s0739-7240(01)00098-4
更新日期：2001-05-01 00:00:00
abstract：:Although prostaglandin (PG) F2alpha is known to be a principal luteolytic factor, its action on the bovine corpus luteum (CL) is mediated by other intra-ovarian factors. Tumor necrosis factor-alpha (TNFalpha) and its specific receptors are present in the bovine CL with the highest expressions at luteolysis. TNFalpha i...
journal_title：Domestic animal endocrinology
pub_type： 杂志文章,评审
doi：10.1016/j.domaniend.2005.02.005
更新日期：2005-08-01 00:00:00
abstract：:Dairy cattle are susceptible to heat stress-induced reductions in fertility; however, direct effects of hyperthermia on specific reproductive functions are difficult to determine in vivo. The objective of this experiment was to examine the effect of elevated temperature in vitro on follicular steroidogenesis, to gain ...
journal_title：Domestic animal endocrinology
pub_type： 杂志文章
doi：10.1016/j.domaniend.2005.02.017
更新日期：2005-10-01 00:00:00
abstract：:Fifteen cows (87 +/- 8 d in lactation; 641 +/- 33 kg BW) were randomly assigned to treatment and then subjected for 182 d to daily sc injection (1000 hr), in the cervical area, of saline (control), thyrotropin-releasing factor (TRF: 1 micrograms/kg BW), growth hormone-releasing factor (1-29)NH2 (GRF; 10 micrograms/kg ...
journal_title：Domestic animal endocrinology
pub_type： 杂志文章
doi：10.1016/0739-7240(91)90044-k
更新日期：1991-01-01 00:00:00
abstract：:This is a test-report of ghrelin levels in plasma and proventriculus, the glandular portion of the avian stomach, by using a specific radioimmunoassay for acylated ghrelin, as well as the expression of the ghrelin gene in the proventriculus after a 12-h fasting period followed by a 6-h feeding period with 6-day-old la...
journal_title：Domestic animal endocrinology
pub_type： 杂志文章
doi：10.1016/j.domaniend.2006.03.006
更新日期：2007-05-01 00:00:00
abstract：:In this prospective study 16 cats with diabetes mellitus were examined for concurrent acromegaly by measuring plasma growth hormone (GH) and insulin-like growth factor-I concentrations, and magnetic resonance imaging (MRI) of the pituitary fossa. Additionally, the effects of octreotide administration on the plasma con...
journal_title：Domestic animal endocrinology
pub_type： 杂志文章
doi：10.1016/j.domaniend.2008.07.004
更新日期：2008-11-01 00:00:00
abstract：:In ruminants, both milking frequency and exogenous GH treatment affect milk production. In a previous report, we showed that the modulation of milk yield due to variations in milking frequency and GH treatment was associated with variations in mammary cell numbers. The aim of this study was to clarify the different me...
journal_title：Domestic animal endocrinology
pub_type： 杂志文章
doi：10.1016/j.domaniend.2004.04.002
更新日期：2004-11-01 00:00:00
abstract：:Measurement of plasma osmolality (Posm) and plasma vasopressin (VP) concentration in response to hypertonicity is regarded as the gold standard for the assessment of VP release in polyuric conditions. Yet the interpretation of the VP curve as a function of Posm may be hampered by the occurrence of VP pulses. To determ...
journal_title：Domestic animal endocrinology
pub_type： 杂志文章
doi：10.1016/j.domaniend.2004.01.007
更新日期：2004-07-01 00:00:00
abstract：:Ghrelin is a gut peptide which participates in growth regulation through its somatotropic, lipogenic and orexigenic effects. Synergism of ghrelin and growth hormone-releasing hormone (GHRH) on growth hormone (GH) secretion has been reported in humans and rats, but not in domestic animals in vivo. In this study, effect...
journal_title：Domestic animal endocrinology
pub_type： 杂志文章
doi：10.1016/j.domaniend.2006.12.001
更新日期：2008-01-01 00:00:00
abstract：:During the early postpartum period dairy cows mobilize fat and muscle to support lactation. This is associated with alterations in blood metabolite and hormone profiles which in turn influence milk yield and fertility. This study developed models to determine how metabolic traits, milk yield and body condition score w...
journal_title：Domestic animal endocrinology
pub_type： 杂志文章
doi：10.1016/j.domaniend.2006.05.004
更新日期：2007-08-01 00:00:00
abstract：:Effects of domperidone, a peripheral dopamine receptor antagonist, on secretion of LH and prolactin were studied during the luteal phase and following administration of PGF2 alpha. Since hyperprolactinemia has been reported to inhibit secretion of LH in ewes, effects of thyrotropin-releasing hormone (TRH) also were ex...
journal_title：Domestic animal endocrinology
pub_type： 杂志文章
doi：10.1016/0739-7240(87)90003-8
更新日期：1987-04-01 00:00:00
abstract：:Relatively little is known about the physiological roles of microRNAs (miRNAs) during follicular development. Previous evidence from in vitro studies suggests specific roles for a subset of miRNAs, including miR-21, miR-23a, miR-145, miR-503, miR-224, miR-383, miR-378, miR-132, and miR-212, in regulating ovarian folli...
journal_title：Domestic animal endocrinology
pub_type： 杂志文章
doi：10.1016/j.domaniend.2013.06.006
更新日期：2013-10-01 00:00:00
abstract：:Environment enrichment is a rising topic for animal welfare but measures to identify effective enrichment interventions are lacking. In humans and rodent species, environmental enrichment increases brain-derived neurotrophic factor (BDNF), the most abundant neurotrophin in the brain. Higher BDNF concentration is ultim...
journal_title：Domestic animal endocrinology
pub_type： 杂志文章
doi：10.1016/j.domaniend.2018.05.007
更新日期：2018-10-01 00:00:00
abstract：:The pituitary gland is a key endocrine organ responsible for growth and development. To get closer to understanding important molecular mechanisms at work in the bovine pituitary and identifying the core genes controlling growth, in the present study we have analyzed the transcriptome profiling of the pituitary glands...
journal_title：Domestic animal endocrinology
pub_type： 杂志文章
doi：10.1016/j.domaniend.2018.09.003
更新日期：2019-01-01 00:00:00
abstract：:The aim of this study was to determine the effects of growth hormone (GH) and insulin-like growth factor (IGF)-I on glycerol release and the regulation of IGF-I and IGF-II expression by GH in isolated rainbow trout adipocytes. Cells were also incubated with GH, tumor necrosis factor α (TNFα), or insulin to analyze the...
journal_title：Domestic animal endocrinology
pub_type： 杂志文章
doi：10.1016/j.domaniend.2014.11.002
更新日期：2015-04-01 00:00:00
abstract：:Severe feed restriction decreases serum insulin-like growth factor I (IGF-I) concentration in animals, and this decrease is thought to be due to reduced IGF-I production in the liver. The objective of this study was to determine whether feed deprivation also increases degradation of serum IGF-I and serum levels of IGF...
journal_title：Domestic animal endocrinology
pub_type： 杂志文章
doi：10.1016/j.domaniend.2008.07.003
更新日期：2008-11-01 00:00:00
abstract：:Hypocalcemia is a common finding in critically ill equine patients. Parathyroid hormone (PTH) helps to maintain calcium homeostasis in hypocalcemic patients by promoting renal calcium reabsorption and bone resorption. Increased serum PTH concentrations have been reported in critically ill people and animals, including...
journal_title：Domestic animal endocrinology
pub_type： 杂志文章
doi：10.1016/j.domaniend.2020.106470
更新日期：2020-07-01 00:00:00
abstract：:In this study, immunization against chicken leptin receptor (cLEPR) extracellular domain (ECD) was applied to investigate leptin regulation and LEPR biofunction in growing chicken pullets. A recombinant protein (cLEPR ECD) based on the cLEPR complemenary DNA sequence corresponding to the 582nd to 796th amino acid resi...
journal_title：Domestic animal endocrinology
pub_type： 杂志文章
doi：10.1016/j.domaniend.2014.09.001
更新日期：2015-01-01 00:00:00
abstract：:Crossbred ovariectomized ewes were treated with steroid therapies determined previously to be adequate (progesterone-primed) or inadequate (unprimed) for embryonic development in order to determine actual serum concentrations of replaced steroid hormones achieved by such treatments and to identify secreted endometrial...
journal_title：Domestic animal endocrinology
pub_type： 杂志文章
doi：10.1016/0739-7240(93)90017-6
更新日期：1993-04-01 00:00:00
abstract：:The ability of the neurohormone melatonin to ameliorate cryopreservation-induced damage to spermatozoa has been demonstrated in several domestic species. However, it is unclear how these protective effects are conferred, with improvements in sperm quality ambiguously attributed to the general antioxidant activity of m...
journal_title：Domestic animal endocrinology
pub_type： 杂志文章
doi：10.1016/j.domaniend.2020.106516
更新日期：2021-01-01 00:00:00
abstract：:The aim of the study and short review was to present evidence that growth hormone (GH), locally produced insulin-like growth factors (IGFs), and IGF-binding proteins (IGFBPs) may have an important role in the control of ovarian function. There is clear evidence for a distinct GH-receptor mRNA expression and protein pr...
journal_title：Domestic animal endocrinology
pub_type： 杂志文章,评审
doi：10.1016/s0739-7240(99)00044-2
更新日期：1999-10-01 00:00:00
abstract：:Three experiments were conducted to better understand why milking-induced prolactin (PRL) release decreases as lactation advances. Experiment 1 compared the effects of milking, 2-min manual stimulation of the mammary gland (without milking), or injection of 1 IU of oxytocin (without milking) on hormonal release in ear...
journal_title：Domestic animal endocrinology
pub_type： 杂志文章
doi：10.1016/j.domaniend.2018.10.003
更新日期：2019-01-01 00:00:00
abstract：:Receptors for LH (LHR) and FSH (FSHR) are expressed in the canine lower urinary tract (LUT). As gonadectomy results in an increase in plasma LH and FSH, the objective of this study was to determine whether there are any differences in the expression of LHR and FSHR in the LUT between intact and gonadectomised dogs. Fo...
journal_title：Domestic animal endocrinology
pub_type： 杂志文章
doi：10.1016/j.domaniend.2007.09.005
更新日期：2008-05-01 00:00:00
abstract：:Glucagon-like peptide-1 (GLP-1) is an intestinal hormone that induces glucose-dependent stimulation of insulin secretion while suppressing glucagon secretion. Glucagon-like peptide-1 also increases beta cell mass and satiation while decelerating gastric emptying. Liraglutide is a fatty-acid derivative of GLP-1 with a ...
journal_title：Domestic animal endocrinology
pub_type： 杂志文章
doi：10.1016/j.domaniend.2014.12.001
更新日期：2015-04-01 00:00:00
abstract：:Mature Hereford cows (n = 28) were used to determine the effect of percentage body fat on secretion of LH and content of GnRH in the infundibular stalk-median eminence (ISME). Cows were fed to maintain, lose, or gain weight to achieve body condition scores (BCS; 1 = emaciated; 9 = obese) of 3 to 7. Then cows were fed ...
journal_title：Domestic animal endocrinology
pub_type： 杂志文章
doi：10.1016/0739-7240(92)90010-u
更新日期：1992-01-01 00:00:00
abstract：:A large amount of research, primarily in mammals, has defined to a great extent the pleiotropic effects of the IGF system on growth, development, and intermediary metabolism. Similar elucidations in poultry were hindered to some extent by the absence of native peptides (IGF-I and IGF-II) until their purification, foll...
journal_title：Domestic animal endocrinology
pub_type： 杂志文章,评审
doi：10.1016/s0739-7240(97)00019-2
更新日期：1997-07-01 00:00:00
abstract：:Nesfatin-1 is a naturally occurring 82-amino acid protein encoded in the precursor nucleobindin-2 (NUCB2) and has been implicated in multiple physiological functions, including food intake and blood glucose regulation. This study aimed to characterize nesfatin-1 in domestic species, especially cats (Felis catus), dogs...
journal_title：Domestic animal endocrinology
pub_type： 杂志文章
doi：10.1016/j.domaniend.2018.04.006
更新日期：2018-10-01 00:00:00
abstract：:Lipoproteins are water-miscible macromolecules enabling the transport of lipids in blood. In humans, altered proportions of lipoproteins are used to detect and classify metabolic diseases. Obesity and obesity-related comorbidities are common in horses. The pathophysiology of obesity is poorly understood and likely mul...
journal_title：Domestic animal endocrinology
pub_type： 杂志文章
doi：10.1016/j.domaniend.2018.11.003
更新日期：2019-07-01 00:00:00
abstract：:It has been suggested that there is a shift in steroidogenic pathways of the theca layer from delta 5 to delta 4 during follicular maturation in the chicken ovary. However, the preferred steroid metabolic pathway in the theca and granulosa layers of small and preovulatory follicles has not been identified. Therefore, ...
journal_title：Domestic animal endocrinology
pub_type： 杂志文章
doi：10.1016/s0739-7240(97)00057-x
更新日期：1998-01-01 00:00:00
abstract：:The objective of this experiment was to develop a procedure for immunizing ewes against melatonin that would alter the effects of changing photoperiod on seasonal reproduction and prolactin secretion. Ewes were immunized against human serum albumin (HSA) as controls (n = 9) or a melatonin-human serum albumin conjugate...
journal_title：Domestic animal endocrinology
pub_type： 杂志文章
doi：10.1016/s0739-7240(99)00017-x
更新日期：1999-05-01 00:00:00
