当前位置： SCI文献检索 > GENERAL AND COMPARATIVE ENDOCRINOLOGY期刊下所有文献 > Endocrine changes in photostimulated willow ptarmigan (Lagopus lagopus lagopus) and Svalbard ptarmigan (Lagopus mutus hyperboreus).

Endocrine changes in photostimulated willow ptarmigan (Lagopus lagopus lagopus) and Svalbard ptarmigan (Lagopus mutus hyperboreus).

Abstract：

:Changes in plasma luteinizing hormone (LH), testosterone, thyroxine (T4), and triiodothyronine (T3) and the height of supraorbital combs were compared in captive willow ptarmigan (Lagopus lagopus lagopus) and Svalbard ptarmigan (Lagopus mutus hyperboreus) exposed to an artificial annual cycle of daylength simulating that at 70 degrees N. Plasma LH and testosterone and comb height increased more slowly in Svalbard than in willow ptarmigan as daylength increased. In both species, plasma LH and testosterone fell abruptly, and the supraorbital combs regressed in June, marking the development of long-day refractoriness. Comparison with free-living Svalbard ptarmigan (K.-A. Stokkan, P. J. Sharp, and S. Unander (1986) Gen. Comp. Endocrinol. 61, 446-451) at 80 degrees N, showed a similar slow increase in reproductive function before the onset of the breeding season. However, maximum plasma LH levels and comb size were higher in free-living than in captive Svalbard ptarmigan. Furthermore, long-day refractoriness developed earlier in captive than in free-living Svalbard ptarmigan. In both species of ptarmigan, the development of long-day refractoriness was associated with increased plasma prolactin. This increase was larger and occurred earlier in the Svalbard than in the willow ptarmigan. Seasonal changes in thyroid hormones were not as marked as for the other hormones measured. In both species, plasma T4 tended to increase and plasma T3 to decrease as daylength increased. A small increase in plasma T3 was seen after the development of long-day refractoriness in both species. It is concluded that captivity depresses the photoperiodic response of Svalbard ptarmigan more than that of willow ptarmigan.(ABSTRACT TRUNCATED AT 250 WORDS)

journal_name

Gen Comp Endocrinol

journal_title

General and comparative endocrinology

authors

Stokkan KA,Sharp PJ,Dunn IC,Lea RW

doi

10.1016/0016-6480(88)90107-4

subject

Has Abstract

pub_date

1988-04-01 00:00:00

pages

169-77

issue

1

eissn

0016-6480

issn

1095-6840

pii

0016-6480(88)90107-4

journal_volume

70

pub_type

杂志文章

相关文献

GENERAL AND COMPARATIVE ENDOCRINOLOGY文献大全
  • Age-dependent changes in the response of the stomach to thyroidal signaling in developmentally arrested larval summer flounder.

    abstract：:Thyroid-dependent stomach development occurs between approximately 35 and 50 days post-hatch (dph) in laboratory-reared summer flounder larvae. The process can be blocked by thiourea (TU), and TU effects are reversed by exogenous thyroxine (T4). To establish whether a window of sensitivity exists for T4-dependent gast...

    journal_title：General and comparative endocrinology

    pub_type： 杂志文章

    doi：10.1016/s0016-6480(03)00262-4

    authors： Soffientino B,Specker JL

    更新日期：2003-12-01 00:00:00

  • Seasonal and parity effects on ghrelin levels throughout the estrous cycle in dairy cows.

    abstract：:In dairy cows, heat stress depresses appetite, leading to decreased food intake, a negative energy balance, and modifies ghrelin levels. Ghrelin is a gut-brain peptide with two major forms: acylated, with an O-n-octanoylated serine in position 3, and nonacylated. To date, the effect of heat stress and estrous cycle on...

    journal_title：General and comparative endocrinology

    pub_type： 杂志文章

    doi：10.1016/j.ygcen.2016.06.006

    authors： Honig H,Ofer L,Elbaz M,Kaim M,Shinder D,Gershon E

    更新日期：2016-09-01 00:00:00

  • Gonadotropin releasing hormone stimulation of cyclic 3',5'-AMP in the pituitary cell of a teleost (Channa punctatus, Bloch) requires extracellular calcium: its relationship to gonadotropin release.

    abstract：:Pituitary cells were prepared by enzymatic dispersion and incubated in vitro. To observe the effect of gonadotropin releasing hormone (GnRH) and Ca2+ on the murrel pituitary cyclic 3',5'-AMP (cAMP), cells were dispersed by 0.3% collagenase plus 0.05% trypsin in Earle's minimum essential medium without Ca2+ and a consi...

    journal_title：General and comparative endocrinology

    pub_type： 杂志文章

    doi：10.1006/gcen.1995.1035

    authors： Mukhopadhyay B,Biswas R,Bhattacharya S

    更新日期：1995-03-01 00:00:00

  • Marked distributional difference of alpha-melanocyte-stimulating hormone (alpha-MSH)-like immunoreactivity in the brain between two elasmobranchs (Scyliorhinus torazame and Etmopterus brachyurus): an immunohistochemical study.

    abstract：:Application of alpha-MSH immunohistochemistry to the brain of elasmobranchs (Scyliorhinus torazame and Etmopterus brachyurus) demonstrated a marked species difference concerning the distribution of the alpha-MSH-like molecule in the brain. In S. torazame, alpha-MSH-like immunoreactive cells were present in the hypotha...

    journal_title：General and comparative endocrinology

    pub_type： 杂志文章

    doi：10.1006/gcen.2001.7628

    authors： Chiba A

    更新日期：2001-06-01 00:00:00

  • Pre- and postprandial changes in orexigenic and anorexigenic factors in channel catfish (Ictalurus punctatus).

    abstract：:Ghrelin (GRLN), cocaine and amphetamine regulated transcript (CART), neuropeptide Y (NPY), and cholecystokinin (CCK) are neuropeptides involved in the regulation of appetite and feeding in vertebrates. We examined pre- and postprandial changes in the expression of plasma GHRL and mRNAs encoding GRLN, CART, NPY, and CC...

    journal_title：General and comparative endocrinology

    pub_type： 杂志文章

    doi：10.1016/j.ygcen.2012.01.022

    authors： Peterson BC,Waldbieser GC,Riley LG Jr,Upton KR,Kobayashi Y,Small BC

    更新日期：2012-04-01 00:00:00

  • In vitro biosynthesis of steroids, including 11-deoxycortisol and 5 alpha-pregnane-3 beta,7 alpha,17,20 beta-tetrol, by ovaries of the goldfish Carassius auratus during the stage of oocyte final maturation.

    abstract：:To examine the production of steroids with potential oocyte maturation-inducing or pheromonal activity in the goldfish (Carassius auratus) we have incubated mature ovaries of this species with 17-[3H]hydroxyprogesterone. The metabolites in the unconjugated, glucuronide, and sulfate fractions were identified by chromat...

    journal_title：General and comparative endocrinology

    pub_type： 杂志文章

    doi：10.1016/0016-6480(92)90044-k

    authors： Kime DE,Scott AP,Canario AV

    更新日期：1992-09-01 00:00:00

  • Endocrine control of sexual behavior in teleost fish.

    abstract：:Sexual behavior is one of the most profound events during the life cycle of animals that reproduce sexually. After completion of gonadal development that is mediated by various hormones, oviparous teleosts perform a suite of behaviors, often termed as spawning behavior. This is particularly important for teleosts that...

    journal_title：General and comparative endocrinology

    pub_type： 杂志文章,评审

    doi：10.1016/j.ygcen.2009.04.011

    authors： Munakata A,Kobayashi M

    更新日期：2010-02-01 00:00:00

  • Changes in brain gonadotropin-releasing hormone- and vasoactive intestinal polypeptide-like immunoreactivity accompanying reestablishment of photosensitivity in male dark-eyed juncos (Junco hyemalis).

    abstract：:In seasonally breeding, photoperiodic birds, the development of photorefractoriness is associated with decreased brain expression of gonadotropin-releasing hormone-like immunoreactivity (GnRH-li ir) and increased expression of vasoactive intestinal polypeptide-like immunoreactivity (VIP-li ir). Dissipation of photoref...

    journal_title：General and comparative endocrinology

    pub_type： 杂志文章

    doi：10.1006/gcen.1999.7361

    authors： Deviche P,Saldanha CJ,Silver R

    更新日期：2000-01-01 00:00:00

  • Entry of extracellular calcium mediates dopamine D1-stimulated growth hormone release from goldfish pituitary cells.

    abstract：:Unlike mammals, the goldfish is unique in having dopamine (DA) D1 receptors in the anterior pituitary. In this species, DA stimulates growth hormone (GH) release via D1 receptors coupled to the cAMP-dependent pathway. To further examine the postreceptor mechanisms of this novel pituitary DA D1 system, the role of extr...

    journal_title：General and comparative endocrinology

    pub_type： 杂志文章

    doi：10.1006/gcen.1994.1088

    authors： Wong AO,Van Goor F,Chang JP

    更新日期：1994-06-01 00:00:00

  • Tissue preferential expression of estrogen receptor gene in the marine snail, Thais clavigera.

    abstract：:Sex steroid hormones have been widely detected in molluscs, and experiments have shown the importance of sex steroids in sex determination, gonadal tissue maturation and gametogenesis. Nevertheless, the signaling pathways of sex steroids in invertebrates have not yet been elucidated. In order to gain insights into the...

    journal_title：General and comparative endocrinology

    pub_type： 杂志文章

    doi：10.1016/j.ygcen.2006.03.016

    authors： Kajiwara M,Kuraku S,Kurokawa T,Kato K,Toda S,Hirose H,Takahashi S,Shibata Y,Iguchi T,Matsumoto T,Miyata T,Miura T,Takahashi Y

    更新日期：2006-09-15 00:00:00

  • Biosynthesis and axonal transport of multiple molluscan insulin-related peptides by the neuroendocrine light green cells of Lymnaea stagnalis.

    abstract：:The neuroendocrine light green cells (LGCs) control body growth and metabolism of the freshwater snail, Lymnaea stagnalis. These cells, located in the cerebral ganglia, use the peripheries of the median lip nerves (MLNs) as the neurohemal area. The LGCs express four members of a gene family encoding the precursors of ...

    journal_title：General and comparative endocrinology

    pub_type： 杂志文章

    doi：10.1016/0016-6480(92)90152-a

    authors： Li KW,Geraerts WP,van Loenhout H,Joosse J

    更新日期：1992-07-01 00:00:00

  • Hypothyroidism induced by postnatal PTU (6-n-propyl-2-thiouracil) treatment decreases Sertoli cell number and spermatogenic efficiency in sexually mature pigs.

    abstract：:Studies with 6-n-propyl-2-thiouracil (PTU) in laboratory rodents have shown that transient neonatal hypothyroidism leads to increased Sertoli cell (SC) number, testis size and sperm production. However, scarce and inconclusive data are available for farm animals. In the present study, Piau pigs received PTU in a gel c...

    journal_title：General and comparative endocrinology

    pub_type： 杂志文章

    doi：10.1016/j.ygcen.2020.113593

    authors： Lara NLM,Silva VA Jr,Chiarini-Garcia H,Garcia SK,Debeljuk L,Hess RA,França LR

    更新日期：2020-12-01 00:00:00

  • Gonadotropin-releasing hormone from thai catfish: chromatographic and physiological studies.

    abstract：:Two forms of immunoreactive gonadotropin-releasing hormone (GnRH) were extracted from brain-pituitary tissues of Thai catfish, Clarias macrocephalus and C. batrachus. The peptides were detected using high performance liquid chromatography (HPLC) and radioimmunoassay (RIA). In both the HPLC systems, catfish GnRH-I elut...

    journal_title：General and comparative endocrinology

    pub_type： 杂志文章

    doi：10.1016/0016-6480(92)90031-e

    authors： Ngamvongchon S,Sherwood NM,Warby CM,Rivier JE

    更新日期：1992-08-01 00:00:00

  • Food intake, growth, and expression of neuropeptides regulating appetite in clown anemonefish (Amphiprion ocellaris) exposed to predicted climate changes.

    abstract：:The clown anemonefish (Amphiprion ocellaris) is a common model species in studies assessing the impact of climate changes on tropical coral fish physiology, metabolism, growth, and stress. However, the basic endocrine principles for the control of food intake and energy homeostasis, under normal and elevated sea tempe...

    journal_title：General and comparative endocrinology

    pub_type： 杂志文章

    doi：10.1016/j.ygcen.2021.113719

    authors： Pham LP,Olderbakk Jordal AE,Nguyen MV,Rønnestad I

    更新日期：2021-01-18 00:00:00

  • Molecular characterization of ghrelin and gastrin-releasing peptide in Atlantic cod (Gadus morhua): cloning, localization, developmental profile and role in food intake regulation.

    abstract：:Full-length complementary deoxyribonucleic acid as well as genomic sequences encoding for two gastrointestinal appetite-related peptides, ghrelin and for gastrin-releasing peptide (GRP) were cloned from Atlantic cod (Gadus morhua) stomach using reverse transcription and rapid amplification of complementary deoxyribonu...

    journal_title：General and comparative endocrinology

    pub_type： 杂志文章

    doi：10.1016/j.ygcen.2008.12.004

    authors： Xu M,Volkoff H

    更新日期：2009-02-01 00:00:00

  • Dimorphic expression of tryptophan hydroxylase in the brain of XX and XY Nile tilapia during early development.

    abstract：:Serotonin (5-HT) is well known for modulating the release of GnRH and gonadotropin in teleosts. Reports on increased female:male ratio after the blockade of 5-HT biosynthesis proposed a role for 5-HT in brain sex differentiation. Two types of tryptophan hydroxylase (Tph), rate-limiting enzyme in the biosynthesis of 5-...

    journal_title：General and comparative endocrinology

    pub_type： 杂志文章

    doi：10.1016/j.ygcen.2009.11.009

    authors： Sudhakumari CC,Senthilkumaran B,Raghuveer K,Wang DS,Kobayashi T,Kagawa H,Krishnaiah Ch,Dutta-Gupta A,Nagahama Y

    更新日期：2010-04-01 00:00:00

  • Expression of estrogen receptors in female rainbow trout (Oncorhynchus mykiss) during first ovarian development and under dense rearing condition.

    abstract：:To study the expression of four estrogen receptor genes (erα1, erα2, erβ1, erβ2) of female rainbow trout (Oncorhynchus mykiss) during first ovarian development, trouts were sampled from different ovarian stages. Serum E2 (estradiol) was measured by ELISA and estrogen receptors mRNA expression were examined by qRT-PCR....

    journal_title：General and comparative endocrinology

    pub_type： 杂志文章

    doi：10.1016/j.ygcen.2017.10.001

    authors： Hou ZS,Wen HS,Li JF,He F,Li Y,Tao YX

    更新日期：2018-04-01 00:00:00

  • A possible involvement of prostaglandin F2 alpha (PGF2 alpha) in Rana esculenta ovulation: effects of mammalian gonadotropin-releasing hormone on in vitro PGF2 alpha and 17 beta-estradiol production from ovary and oviduct.

    abstract：:The present work studied the PGF2 alpha and 17 beta-estradiol plasma levels during ovulation, and the in vitro effects of mammalian gonadotropin-releasing hormone (mGnRH) on ovarian and oviductal production of prostaglandin F2 alpha (PGF2 alpha) and 17 beta-estradiol during four different stages of the annual sexual c...

    journal_title：General and comparative endocrinology

    pub_type： 杂志文章

    doi：10.1016/0016-6480(92)90018-f

    authors： Gobbetti A,Zerani M

    更新日期：1992-08-01 00:00:00

  • Cryosurvival of isolated testicular cells and testicular tissue of tench Tinca tinca and goldfish Carassius auratus following slow-rate freezing.

    abstract：:Experiments were carried out to test the efficiency of cryopreservation of whole testicular tissue in tench Tinca tinca and goldfish Carassius auratus and compare it to cryopreservation of isolated testicular cells. Additionally, effects of three cryoprotectants (dimethyl sulphoxyde - Me2SO, methanol - MeOH and ethyle...

    journal_title：General and comparative endocrinology

    pub_type： 杂志文章

    doi：10.1016/j.ygcen.2016.07.005

    authors： Marinović Z,Lujić J,Kása E,Bernáth G,Urbányi B,Horváth Á

    更新日期：2017-05-01 00:00:00

  • The development and validation of a radioimmunoassay to measure plasma ACTH levels in salmonid fishes.

    abstract：:A radioimmunoassay (RIA) capable of determining blood ACTH levels in salmonid fishes was developed and validated. The RIA used an antibody raised against mammalian ACTH, iodinated human ACTH as tracer, and human 1-39 ACTH as standard. Incubation of the standard or unknown with antibody for 3 days before addition of as...

    journal_title：General and comparative endocrinology

    pub_type： 杂志文章

    doi：10.1016/0016-6480(86)90046-8

    authors： Sumpter JP,Donaldson EM

    更新日期：1986-06-01 00:00:00

  • Impaired central leptin signaling and sensitivity in rainbow trout with high muscle adiposity.

    abstract：:The hormone leptin has been identified in all vertebrate classes, but its physiological roles in non-mammalian vertebrates are not well defined. To elucidate leptin regulation in energy homeostasis in a teleost fish species, this study compares hypothalamic and pituitary leptin signaling systems in energetically diver...

    journal_title：General and comparative endocrinology

    pub_type： 杂志文章

    doi：10.1016/j.ygcen.2016.06.013

    authors： Gong N,Johansson M,Björnsson BT

    更新日期：2016-09-01 00:00:00

  • Growth hormone-releasing hormone stimulates GH release while inhibiting ghrelin- and sGnRH-induced LH release from goldfish pituitary cells.

    abstract：:Goldfish GH-releasing hormone (gGHRH) has been recently identified and shown to stimulate GH release in goldfish. In goldfish, neuroendocrine regulation of GH release is multifactorial and known stimulators include goldfish ghrelin (gGRLN19) and salmon gonadotropin-releasing hormone (sGnRH), factors that also enhance ...

    journal_title：General and comparative endocrinology

    pub_type： 杂志文章

    doi：10.1016/j.ygcen.2013.02.037

    authors： Grey CL,Chang JP

    更新日期：2013-06-01 00:00:00

  • Influence of external factors on hair cortisol concentrations.

    abstract：:Measuring hair cortisol has attracted interest as a long term parameter for chronic stress evaluation. However, some studies support the hypothesis that locally produced cortisol, originating from the hair follicle or skin cells, affects concentrations in the hair. In an animal model the influence of different treatme...

    journal_title：General and comparative endocrinology

    pub_type： 杂志文章

    doi：10.1016/j.ygcen.2016.05.005

    authors： Salaberger T,Millard M,Makarem SE,Möstl E,Grünberger V,Krametter-Frötscher R,Wittek T,Palme R

    更新日期：2016-07-01 00:00:00

  • The effects of E and F prostaglandins on ovarian cAMP production and follicular contraction in the brook trout (Salvelinus fontinalis).

    abstract：:The effects of PGE1, PGE2, PGF2 alpha (2 micrograms/ml), and forskolin (10 microM) on follicle contraction of brook trout (salvelinus fontinalis) were studied by measuring the weight loss of punctured follicles during in vitro incubation. PGE1, PGE2, and forskolin significantly inhibited spontaneous contraction of fol...

    journal_title：General and comparative endocrinology

    pub_type： 杂志文章

    doi：10.1016/0016-6480(92)90238-f

    authors： Hsu SY,Goetz FW

    更新日期：1992-12-01 00:00:00

  • Localization, expression and role of Orexin A and its receptor in testes of neonatal mice.

    abstract：:Orexin A (OXA), a hypothalamic neuropeptide, and its receptor (OX1R) are primarily expressed in lateral hypothalamus and are involved in the control of various biological functions. Expressions of OXA and OX1R have also been reported in peripheral organs like gastrointestinal and genital tracts. In the present study, ...

    journal_title：General and comparative endocrinology

    pub_type： 杂志文章

    doi：10.1016/j.ygcen.2015.11.005

    authors： Joshi D,Singh SK

    更新日期：2016-12-01 00:00:00

  • Growth hormone stimulates hepatic thyroxine 5'-monodeiodinase activity and 3,5,3'-triiodothyronine levels in rainbow trout (Salmo gairdneri).

    abstract：:Intraperitoneal injection of rainbow trout (Salmo gairdneri) with 0.4 microgram/g of human growth hormone (hGH) increased plasma levels of 3,5,3'-triiodo-L-thyronine (T3) and Vmax of the hepatic microsomal 5'-monodeiodinase enzyme (5'D) that converts thyroxine (T4) to T3, with no effect on Km or plasma T4 levels. A do...

    journal_title：General and comparative endocrinology

    pub_type： 杂志文章

    doi：10.1016/0016-6480(90)90002-4

    authors： MacLatchy DL,Eales JG

    更新日期：1990-05-01 00:00:00

  • Characterization of triacetyl-α-melanocyte-stimulating hormone in carp and goldfish.

    abstract：:A triacetyl form of α-melanocyte-stimulating hormone (MSH) was found in carp (Cyprinus carpio) and goldfish (Carassius auratus), by selective detection of mass profile for cell secretory granules using direct tissue matrix-assisted laser desorption ionization with time-of-flight mass spectrometry (MALDI-TOF MS) analys...

    journal_title：General and comparative endocrinology

    pub_type： 杂志文章

    doi：10.1016/j.ygcen.2011.11.009

    authors： Yasuda A,Tatsu Y,Shigeri Y

    更新日期：2012-01-15 00:00:00

  • Retinal modulation of the hypothalamic sensitivity to testosterone feedback in photoperiodism of quail.

    abstract：:This experiment was performed on two groups of male Japanese quail. One had been maintained in our laboratory as a closed colony (S-group), and the other had been obtained from a commercial source (R-group). Different responses of gonadal function were found between two groups following either testosterone treatment o...

    journal_title：General and comparative endocrinology

    pub_type： 杂志文章

    doi：10.1016/0016-6480(85)90390-9

    authors： Konishi H,Wada M,Homma K

    更新日期：1985-09-01 00:00:00

  • Hormone-sensitive lipase in yellow catfish Pelteobagrus fulvidraco: molecular characterization, mRNA tissue expression and transcriptional regulation by leptin in vivo and in vitro.

    abstract：:Hormone-sensitive lipase (hsl) plays a pivotal role in regulation of lipolysis in mammals, but information is very scarce about its gene structure and function in fish. In this study, two distinct hsl cDNAs, designated hsl1 and hsl2, were firstly isolated and characterized from yellow catfish Pelteobagrus fulvidraco. ...

    journal_title：General and comparative endocrinology

    pub_type： 杂志文章

    doi：10.1016/j.ygcen.2014.06.031

    authors： Chen QL,Luo Z,Song YF,Wu K,Huang C,Pan YX,Zhu QL

    更新日期：2014-09-15 00:00:00

  • Sex differences in mammalian and chicken-II gonadotropin-releasing hormone immunoreactivity in musk shrew brain.

    abstract：:Many vertebrates have more than one molecular form of gonadotropin-releasing hormone (GnRH) present in brain. In all cases documented to date, GnRH neurons located in the forebrain are critical players in the brain-pituitary-gonadal feedback axis although the details of how steroids regulate GnRH remain elusive. The f...

    journal_title：General and comparative endocrinology

    pub_type： 杂志文章

    doi：10.1006/gcen.1998.7135

    authors： Rissman EF,Li X

    更新日期：1998-12-01 00:00:00