کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
4339885 | 1295772 | 2009 | 13 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Dopaminergic projections to the medial preoptic area of postpartum rats
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کلمات کلیدی
LHALPOAretrochiasmatic nucleusVMHdmMeApdNDBRCHPHVSMDCLiAHNBSTvMPOAFluorogoldFasciculus retroflexusTBSAVPMPNDMHADPVTAAVPVcpd - CPDPostpartum - بعد از زایمانsubstantia nigra - توده سیاهtyrosine hydroxylase - تیروزین هیدروکسیلازDopamine - دوپامینMaternal behavior - رفتار مادریDorsal raphé - رفسنجی پشتیFemale - زنcerebral peduncle - سیب زمینی مغزیSUM - مبلغLateral preoptic area - منطقه دایره ای جانبیzona incerta - منطقه نامشخصlateral hypothalamic area - منطقه هیپوتالاموس جانبیmedial preoptic area - منطقه پیشوپتیک مدیاventral tegmental area - ناحیه تگمنتوم شکمیSupramammillary nucleus - هسته SupramammillaryNucleus of the diagonal band - هسته از گروه موربdorsomedial hypothalamic nucleus - هسته هیپوتالاموس dorsomedialanterior hypothalamic nucleus - هسته هیپوتالاموس قدامیperiventricular hypothalamic nucleus - هسته هیپوتالاموس پروژستیکmedial preoptic nucleus - هسته پیشوپتیک مدیاposterior hypothalamus - هیپوتالاموس خلفیcatecholamine - کاتکولآمینها
موضوعات مرتبط
علوم زیستی و بیوفناوری
علم عصب شناسی
علوم اعصاب (عمومی)
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Dopamine receptor activity in the rodent medial preoptic area (mPOA) is crucial for the display of maternal behaviors, as well as numerous other physiological and behavioral functions. However, the origin of dopaminergic input to the mPOA has not been identified through neuroanatomical tracing. To accomplish this, the retrograde tracer Fluorogold was iontophoretically applied to the mPOA of postpartum laboratory rats, and dual-label immunocytochemistry for Fluorogold and tyrosine hydroxylase later performed to identify dopaminergic cells of the forebrain and midbrain projecting to the mPOA. Results indicate that the number of dopaminergic cells projecting to the mPOA is moderate (â¼90 cells to one hemisphere), and that these cells have an unexpectedly wide distribution. Even so, more than half of the dual-labeled cells were found in either what has been considered extensions of the A10 dopamine group (particularly the ventrocaudal posterior hypothalamus and adjacent medial supramammillary nucleus), or in the A10 group of the ventral tegmental area. The rostral hypothalamus and surrounding region also contained numerous dual-labeled cells, with the greatest number found within the mPOA itself (including in the anteroventral preoptic area and preoptic periventricular nucleus). Notably, dual-labeled cells were rare in the zona incerta (A13), a site previously suggested to provide dopaminergic input to the mPOA. This study is the first to use anatomical tracing to detail the dopaminergic projections to the mPOA in the laboratory rat, and indicates that much of this projection originates more caudally than previously suggested.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Neuroscience - Volume 159, Issue 4, 10 April 2009, Pages 1384-1396
Journal: Neuroscience - Volume 159, Issue 4, 10 April 2009, Pages 1384-1396
نویسندگان
S.M. Miller, J.S. Lonstein,