cingulate cortex;
lordosis reflex;
preoptic area;
septum;
sexual behavior;
D O I:
10.1016/S0304-3940(97)00175-4
中图分类号:
Q189 [神经科学];
学科分类号:
071006 ;
摘要:
Retrograde labels by Nuclear Yellow from the female rat ventral premammillary nucleus (PMv) were most numerous in the lateral septum (LS) and the preoptic area (POA) and spread laterally into the substantia innominata. Other labels were in the diagonal band nucleus, the substantia innominata and the bed nucleus of the stria terminalis. Constant-current, single-pulse electrical stimulation of the PMv in urethane-anesthetized ovariectomized rats elicited antidromic action potentials in the cingulate cortex, in addition to the structures that contained labeled neurons. In the LS or cingulate cortex, but not in the POA, estrogen decreased antidromic activation thresholds and shortened refractory periods. The PMv is a way station that relays estrogen-excitable septal, but not preoptic, effects. The PMv also contains fibers of passage that originate in estrogen-excitable cingulate neurons. (C) 1997 Elsevier Science Ireland Ltd.
机构:
Univ Fed Rio Grande do Norte, Lab Neuroanat, Dept Morphol, Ctr Biosci, BR-59072970 Natal, RN, Brazil
Univ Sao Paulo, Inst Biomed Sci, Dept Anat, Lab Chem Neuroanat, BR-05508000 Sao Paulo, BrazilUniv Fed Rio Grande do Norte, Lab Neuroanat, Dept Morphol, Ctr Biosci, BR-59072970 Natal, RN, Brazil
Cavalcante, Judney Cley
Bittencourt, Jackson Cioni
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机构:
Univ Sao Paulo, Inst Biomed Sci, Dept Anat, Lab Chem Neuroanat, BR-05508000 Sao Paulo, Brazil
Univ Sao Paulo, Inst Psychol, Ctr Neurosci & Behav, BR-05508000 Sao Paulo, BrazilUniv Fed Rio Grande do Norte, Lab Neuroanat, Dept Morphol, Ctr Biosci, BR-59072970 Natal, RN, Brazil
Bittencourt, Jackson Cioni
Elias, Carol Fuzeti
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机构:
Univ Sao Paulo, Inst Biomed Sci, Dept Anat, Lab Chem Neuroanat, BR-05508000 Sao Paulo, Brazil
Univ Michigan, Dept Mol & Integrat Physiol, Ann Arbor, MI 48109 USA
Univ Michigan, Dept Obstet & Gynecol, Ann Arbor, MI 48109 USAUniv Fed Rio Grande do Norte, Lab Neuroanat, Dept Morphol, Ctr Biosci, BR-59072970 Natal, RN, Brazil
机构:
Univ Maryland, Ctr Med, Div Urol, Baltimore, MD 21201 USAUniv Maryland, Ctr Med, Div Urol, Baltimore, MD 21201 USA
Rickey, Leslie Minor
Sarkey, Sara
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机构:Univ Maryland, Ctr Med, Div Urol, Baltimore, MD 21201 USA
Sarkey, Sara
DonCarlos, Lydia L.
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机构:
Loyola Univ, Med Ctr, Grad Program Neurosci, Maywood, IL 60153 USA
Loyola Univ, Med Ctr, Dept Cell Biol Neurobiol & Neuroanat, Maywood, IL 60153 USAUniv Maryland, Ctr Med, Div Urol, Baltimore, MD 21201 USA