کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9414618 | 1292050 | 2005 | 9 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
GABA receptor Ï subunit expression in the developing rat brain
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
qRT-PCRIn situ hybridization - Hybridization در محلNeurotransmitters, modulators, transporters and receptors - انتقال دهنده های عصبی، مدولاتورها، حمل کننده ها و گیرنده هاImmunohistochemistry - ایمونوهیستوشیمیSuperior colliculus - ستارگان برترHippocampus - هیپوکامپ GABA receptors - گیرنده های GABAGABAc receptors - گیرنده های GABAc
موضوعات مرتبط
علوم زیستی و بیوفناوری
علم عصب شناسی
علوم اعصاب تکاملی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Ionotropic GABAC receptors are composed of Ï1, Ï2 and Ï3 subunits. Although the distribution of Ï subunit mRNAs in the adult brain has been studied, information on the developmental regulation of different Ï subunits in the brain is scattered and incomplete. Here, GABAC receptor Ï subunit expression was studied in the developing rat brain. In situ hybridization on postnatal brain slices showed Ï2 mRNA expression from newborn in superficial gray layer (SGL) of superior colliculus (SuC), and from the first postnatal week in the hippocampal CA1 region and pretectal nucleus of the optic tract. Ï2 mRNA was also expressed in the adult dorsal lateral geniculate nucleus. Quantitative RT-PCR revealed expression of all three Ï subunits in the hippocampus and superior colliculus from the first postnatal day. In the hippocampus, Ï2 mRNA expression clearly dominated over Ï1 and Ï3, whereas in the superior colliculus, Ï1 mRNA expression levels were similar to Ï2. In both areas, a clear up-modulation of Ï2 and Ï3 mRNA during the first postnatal week was detected. GABAC receptor protein expression was confirmed in adult hippocampus, superior colliculus and dorsal lateral geniculate nucleus by immunohistochemistry. Our results demonstrate for the first time the expression of all three Ï subunit mRNAs in several regions of the developing and adult rat brain. Our quantitative data allows assessment of putative subunit combinations in the superior colliculus and hippocampus. From the selective distribution of Ï subunits, it may be hypothesized that GABAC receptors are specifically involved in aspects of visual image motion processing in the rat brain.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Developmental Brain Research - Volume 154, Issue 1, 1 January 2005, Pages 15-23
Journal: Developmental Brain Research - Volume 154, Issue 1, 1 January 2005, Pages 15-23
نویسندگان
Anniina Alakuijala, Mari Palgi, Katri Wegelius, Matthias Schmidt, Ralf Enz, Lars Paulin, Mart Saarma, Michael Pasternack,