Journal of Neuroendocrinology
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Glutamate Inhibits Ingestive Behaviour
Journal of Neuroendocrinology - Tập 6 Số 4 - Trang 403-408 - 1994
AbstractMale rats treated with reserpine were motionless and ingested only a few
of ten consecutive intraoral injections of a 1 M solution of sucrose. While
injection of apomorphine, a dopamine agonist, stimulated locomotion and
stereotyped sniffing in reserpinized rats, it did not reactivate ingestive
responses. The non‐competitive N‐methyl‐D‐aspartate receptor antagonist MK801,
however, stimulat...
Sex‐Related Differences in Dendritic Branching of Cells in the Prefrontal Cortex of Rats
Journal of Neuroendocrinology - Tập 3 Số 1 - Trang 95-99 - 1991
AbstractMale and female Sprague‐Dawley rats were given either gonadectomies or
sham surgery on the day of birth. In adulthood they were sacrificed and prepared
for Golgi‐Cox staining. Using a camera lucida technique, layer II/III pyramidal
neurons were drawn in the anterior cingulate cortex areas 1 and 3 and the
agranular insular cortex and the number of dendritic branches on the apical and
basila...
Low Temperature Stimulates α‐Melanophore‐Stimulating Hormone Secretion and Inhibits Background Adaptation in Xenopus laevis
Journal of Neuroendocrinology - Tập 16 Số 11 - Trang 894-905 - 2004
AbstractIt is well‐known that α‐melanophore‐stimulating hormone (α‐MSH) release
from the amphibian pars intermedia (PI) depends on the light condition of the
animal's background, permitting the animal to adapt the colour of its skin to
background light intensity. In the present study, we carried out nine
experiments on the effect of low temperature on this skin adaptation process in
the toad Xenop...
Distribution and Acute Stressor‐Induced Activation of Corticotrophin‐Releasing Hormone Neurones in the Central Nervous System of Xenopus laevis
Journal of Neuroendocrinology - Tập 16 Số 11 - Trang 880-893 - 2004
AbstractIn mammals, corticotrophin‐releasing hormone (CRH) and related peptides
are known to play essential roles in the regulation of neuroendocrine, autonomic
and behavioural responses to physical and emotional stress. In nonmammalian
species, CRH‐like peptides are hypothesized to play similar neuroendocrine and
neurocrine roles. However, there is relatively little detailed information on
the di...
Brain‐Derived Neurotrophic Factor in the Brain of Xenopus laevis May Act as a Pituitary Neurohormone Together with Mesotocin
Journal of Neuroendocrinology - Tập 18 Số 6 - Trang 454-465 - 2006
AbstractBrain‐derived neurotrophic factor (BDNF), a member of the neurotrophin
family, occurs abundantly in the brain, where it exerts a variety of neural
functions. We previously demonstrated that BDNF also exists in the endocrine
melanotroph cells in the intermediate lobe of the pituitary gland of the
amphibian Xenopus laevis, suggesting that BDNF, in addition to its neural
actions within the br...
Activity‐Dependent Dynamics of Coexisting Brain‐Derived Neurotrophic Factor, Pro‐Opiomelanocortin and α‐Melanophore‐Stimulating Hormone in Melanotrope Cells ofXenopus laevis
Journal of Neuroendocrinology - Tập 16 Số 1 - Trang 19-25 - 2004
AbstractBrain‐derived neurotrophic factor (BDNF) is involved as an autocrine
factor in the regulation of the secretory activity of the neuroendocrine
pituitary melanotrope cells ofXenopus laevis. We studied the subcellular
distribution of BDNF inXenopusmelanotropes using a combination of high‐pressure
freezing, cryosubstitution and immunoelectron microscopy. Presence of BDNF,
pro‐opiomelanocortin ...
Diurnal Change of Thyroid‐Stimulating Hormone mRNA Expression in the Rat Pars Tuberalis
Journal of Neuroendocrinology - Tập 19 Số 11 - Trang 839-846 - 2007
Thyroid‐stimulating hormone (TSH)‐producing cells (TSH cells), which account for
a large fraction of the cells in the rat pars tuberalis (PT), have been found to
express MT1 melatonin receptor and mammalian clock genes at high densities.
Although these findings suggest that TSH production in the rat PT is regulated
by melatonin and/or the biological clock, there have been no studies focusing on
th...
Ghrelin‐Induced Growth Hormone Release From Isolated Rat Anterior Pituitary Cells Depends on Intracellullar and Extracellular Ca2+ Sources
Journal of Neuroendocrinology - Tập 16 Số 10 - Trang 825-831 - 2004
AbstractGhrelin, a novel growth hormone (GH)‐releasing peptide, was isolated
from the rat stomach as an endogenous ligand to the growth hormone secretagogues
receptor. It is known that ghrelin stimulates the release of GH from the rat
anterior pituitary gland, but the intracellular signal cascade in somatotrophs
has not yet been clarified. In this study, using an isolated cell perifusion
system, w...
GHRP6‐Stimulated Hormone Secretion in Somatotrophs: Involvement of Intracellular and Extracellular Calcium Sources
Journal of Neuroendocrinology - Tập 8 Số 4 - Trang 309-314 - 1996
GHRP6 is a synthetic hexapeptide which stimulates growth hormone (GH) secretion
from the pituitary in vivo and in vitro. We have previously shown that in
identified somatotrophs, GHRP6 induces a biphasic increase in cytosolic Ca2+
concentration ([Ca2+]i) consisting of an abrupt increase (first phase) followed
by a sustained plateau of elevated [Ca2+]i (second phase). The first phase
corresponds to...
Regulational Effect of Ghrelin on Growth Hormone Secretion from Perifused Rat Anterior Pituitary Cells
Journal of Neuroendocrinology - Tập 14 Số 2 - Trang 156-162 - 2002
AbstractGhrelin, a novel growth hormone (GH)‐releasing peptide, was recently
isolated from the rat stomach as an endogenous ligand to growth hormone
secretagogue receptor (GHS‐R). Ghrelin specifically stimulates the release of GH
from the rat anterior pituitary gland, but the regulational effect of ghrelin on
GH secretion has not yet been clarified. We used a perifusion system to examine
the singl...
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