Abstract:
:To elucidate the role of the medial basal hypothalamus (MBH) in stress-induced prolactin (Prl) release, adult male rats which had received monosodium glutamate (MSG 4 mg/g) on alternate days for the first 10 days of life were subjected to ether stress for 2 min. Blood samples were drawn at 0, 15, 30 and 60 min after etherization through an indwelling jugular catheter implanted 1 day before the experiment. Sixty minutes after etherization the dopamine receptor blocker spiroperidol (0.1 mg/kg) was injected intravenously and another blood sample was withdrawn 60 min later. Although there were no differences in basal levels of plasma Prl between control and MSG-treated animals, a dramatic elevation of plasma Prl was observed in control rats 15 min after etherization, whereas no significant change was seen in MSG-treated animals. Spiroperidol significantly increased plasma Prl in both groups of animals, but the magnitude of the increase in Prl levels of MSG-treated rats was roughly one-third (p less than 0.005) that of control animals. When morphine (3 mg/kg) was injected to test its capability to stimulate Prl release in MSG-treated rats, significant increases of similar magnitude of plasma Prl were observed in both groups. These results show that (1) the tuberoinfundibular dopaminergic system is functioning in MSG-treated rats to maintain Prl at low levels, (2) the stimulatory effect of morphine on Prl release is intact in MSG-treated rats, and (3) the tuberoinfundibular dopaminergic system is not responsible for stress-induced Prl release, but rather another mechanism located within the arcuate nucleus (ARC) and highly sensitive to destruction by MSG mediates stress-induced Prl release.
journal_name
Brain Res Bulljournal_title
Brain research bulletinauthors
Mizunuma H,Khorram O,McCann SMdoi
10.1016/0361-9230(83)90068-0subject
Has Abstractpub_date
1983-01-01 00:00:00pages
23-6issue
1eissn
0361-9230issn
1873-2747pii
0361-9230(83)90068-0journal_volume
10pub_type
杂志文章abstract::To determine whether repeated exposure of cocaine affects the dopaminergic innervation of the nucleus accumbens, we employed a typical cocaine-dosing regimen in adult male Sprague-Dawley rats followed by an immunocytochemical analysis of tyrosine hydroxylase (TH). Treatment consisted of bi-daily injections of saline o...
journal_title:Brain research bulletin
pub_type: 杂志文章
doi:10.1016/s0361-9230(00)00277-x
更新日期:2000-07-15 00:00:00
abstract::A microscope-enlarger is described which can be used to produce 20 cm by 25 cm negatives of histological sections at magnifications up to 1,000 diameters, without loss of image quality or reduction of resolution. Standard flat-field microscope optics are used, and the apparatus is adjustable for Koehler illumination. ...
journal_title:Brain research bulletin
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doi:10.1016/0361-9230(76)90058-7
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journal_title:Brain research bulletin
pub_type: 杂志文章,评审
doi:10.1016/0361-9230(85)90116-9
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abstract::Microtubules are essential for the development and maintenance of axons and dendrites throughout the life of the neuron, and are vulnerable to degradation and disorganization in a variety of neurodegenerative diseases. Microtubules, polymers of tubulin heterodimers, are intrinsically polar structures with a plus end f...
journal_title:Brain research bulletin
pub_type: 杂志文章,评审
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更新日期:2016-09-01 00:00:00
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journal_title:Brain research bulletin
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journal_title:Brain research bulletin
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doi:10.1016/s0361-9230(03)00188-6
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pub_type: 杂志文章
doi:10.1016/j.brainresbull.2008.07.004
更新日期:2008-10-22 00:00:00
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journal_title:Brain research bulletin
pub_type: 杂志文章
doi:10.1016/j.brainresbull.2008.03.009
更新日期:2008-06-15 00:00:00
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journal_title:Brain research bulletin
pub_type: 杂志文章
doi:10.1016/0361-9230(88)90047-0
更新日期:1988-11-01 00:00:00
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journal_title:Brain research bulletin
pub_type: 杂志文章
doi:10.1016/j.brainresbull.2004.06.002
更新日期:2004-08-30 00:00:00
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journal_title:Brain research bulletin
pub_type: 杂志文章
doi:10.1016/j.brainresbull.2018.03.005
更新日期:2018-05-01 00:00:00
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journal_title:Brain research bulletin
pub_type: 杂志文章
doi:10.1016/j.brainresbull.2005.11.007
更新日期:2006-06-15 00:00:00
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journal_title:Brain research bulletin
pub_type: 杂志文章
doi:10.1016/0361-9230(92)90059-7
更新日期:1992-09-01 00:00:00
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journal_title:Brain research bulletin
pub_type: 杂志文章
doi:10.1016/0361-9230(92)90038-y
更新日期:1992-03-01 00:00:00
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journal_title:Brain research bulletin
pub_type: 杂志文章
doi:10.1016/0361-9230(86)90051-1
更新日期:1986-03-01 00:00:00
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journal_title:Brain research bulletin
pub_type: 杂志文章
doi:10.1016/0361-9230(95)02027-6
更新日期:1996-01-01 00:00:00
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journal_title:Brain research bulletin
pub_type: 杂志文章
doi:10.1016/s0361-9230(01)00755-9
更新日期:2002-01-15 00:00:00
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journal_title:Brain research bulletin
pub_type: 杂志文章
doi:10.1016/j.brainresbull.2007.07.006
更新日期:2007-10-19 00:00:00
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journal_title:Brain research bulletin
pub_type: 杂志文章
doi:10.1016/0361-9230(89)90224-4
更新日期:1989-10-01 00:00:00
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journal_title:Brain research bulletin
pub_type: 杂志文章,评审
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journal_title:Brain research bulletin
pub_type: 杂志文章
doi:10.1016/0361-9230(86)90219-4
更新日期:1986-10-01 00:00:00
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journal_title:Brain research bulletin
pub_type: 杂志文章
doi:10.1016/j.brainresbull.2017.11.018
更新日期:2018-03-01 00:00:00
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journal_title:Brain research bulletin
pub_type: 杂志文章
doi:10.1016/s0361-9230(97)00458-9
更新日期:1998-05-01 00:00:00
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journal_title:Brain research bulletin
pub_type: 杂志文章
doi:10.1016/j.brainresbull.2017.07.021
更新日期:2017-09-01 00:00:00
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journal_title:Brain research bulletin
pub_type: 杂志文章
doi:10.1016/j.brainresbull.2008.06.008
更新日期:2008-09-30 00:00:00
abstract::Bone marrow stromal cells (BMSCs) are promising donor cells for transplantation therapies for a variety of diseases. However, there still lack efficient ways to induce directional differentiation of BMSCs to promote their practical use in transplantation therapy. In this study, we constructed hybrid cells by transferr...
journal_title:Brain research bulletin
pub_type: 杂志文章
doi:10.1016/j.brainresbull.2011.11.001
更新日期:2012-02-10 00:00:00
abstract::The present study was conducted to examine the effects of d-amphetamine and the designer drugs 3,4-methylenedioxymethamphetamine (MDMA), N-methyl-3,4-methylenedioxyphenyl-3-butamine (HMDMA), 3,4-methylenedioxyphenyl-2-butanamine (BDB), 3,4-methylenedioxyphenyl-1-ethanamine (MDM1EA) in the chick embryo and the young ch...
journal_title:Brain research bulletin
pub_type: 杂志文章
doi:10.1016/0361-9230(94)90011-6
更新日期:1994-01-01 00:00:00
abstract::This is the first report of quantitative autoradiography results showing sex differences of GABAA receptor levels in brain regions of a wild rodent (wood mouse, Apodemus sylvaticus) living in its natural habitat. The labeling of this GABAergic site with its specific high affinity radioligand [3H] muscimol provided a h...
journal_title:Brain research bulletin
pub_type: 杂志文章
doi:10.1016/0361-9230(96)00034-2
更新日期:1996-01-01 00:00:00
abstract::The effects of administration of isoproterenol, a beta-adrenergic agonist, and angiotensin II, a peptide, separately and in combination, on water intake and blood pressure of rats were studied. The results of 6 factorially designed studies in which 4 different doses of each compound were administered revealed that wat...
journal_title:Brain research bulletin
pub_type: 杂志文章
doi:10.1016/0361-9230(83)90099-0
更新日期:1983-03-01 00:00:00
abstract::Glaucoma is no longer viewed simply as elevated intraocular pressure (IOP) that damages the optic nerve. In addition to high IOP, evidence is rapidly accumulating that suggests damage to the optic nerve may be initiated or sustained by any number of factors including ischemia, excitotoxicity, neurotrophin insufficienc...
journal_title:Brain research bulletin
pub_type: 杂志文章,评审
doi:10.1016/S0361-9230(03)00074-1
更新日期:2004-02-15 00:00:00