He moderately stained neurons in the medial and lateral habenular nuclei(Fig 1J, MHb, LHb) inside the epithalamus. Much more strongly stained neurons have been located inside the mediodorsal, lateral dorsal, and ventral lateral thalamic nuclei (Fig 1J, MD, LD, VL) as well because the reuniens thalamic nucleus(Fig 1J, Re). Scattered lightly to moderately stained neurons were located in the area from the globus pallidus(Fig 1J, GP). The cells in the lateral hypothalamic nucleus(Fig 1J, LH; Fig 2K) exhibited moderate to robust staining and were much more densely arrayed. 3.3 Prosencephalon Starting in the forebrain level the distribution of TCF7L2-E4CPG labeled cells included the robustly stained neurons in the subfornical organ(Fig 1K, SFO; Fig 2L), these of the lateral preoptic region(Fig 1K, LPO; Fig 3A), the medial preoptic nucleus(Fig 1K, MPO; Fig 3B) and smaller sized nuclei such as the nucleus of horizontal limb of diagonal band(Fig 1K, DBh),J Chem Neuroanat. Author manuscript; available in PMC 2013 October 01.NIH-PA Author Manuscript NIH-PA Author Manuscript NIH-PA Author ManuscriptWeaver et al.Pageaccumbens nucleus(Fig 1K, Acb) and magnocellular preoptic nucleus(Fig 1K, MCPO). In the remaining levels, intensely labeled TCF7L2 cells composed quite a few layers lining the ventricular and subventricular zones of your lateral ganglionic eminence(Fig 1L, LG) which kind the septal(Fig 1L, Sn, Fig PubMed ID:http://www.ncbi.nlm.nih.gov/pubmed/21237502 3C) and striatal neuroepithelium. Despite the fact that present inside the similar zones from the lateral ganglionic eminence forming cortical neuroepithelium(Fig 1L, Cn) and medial ganglionic eminence forming the striatal neuroepithelium(Fig 1L, Mge), the cells of this layer exhibited significantly significantly less intense labeling for TCF7L2. The strongest expression of TCF7L2 in the neuroepithelium was located involving E14 and E18.five. A couple of moderately stained and scattered cells have been discovered within the medial septal nucleus(Fig 1L, MS). 3.four Parasagittal Planes Parasagittal sections provided further insight for the distribution and expression of TCF7L2. The robust staining of the dense collection of neurons shown in Fig 3D-E which compose the parafascicular(PF), mediodorsal(MD), subparafascicular(SPF), anteriomedial(AM), ventral medial(VM), ventral posterior medial(VPM), and reticular(Ret) thalamic nuclei also because the unstained fibers of your fasciculus retroflexus(fr) above along with the cells with the zona incerta(ZI) below contributed towards the well-defined demarcation of thalamic boundaries in the pretectum above and also the hypothalamus beneath. This sagittal section also illustrates labeled TCF7L2 cells from the tectum which includes moderately labeled cells of the pretectum(Fig 3D-E, Ptec), periaqueductal gray(Fig 3D, PAG), dorsomedial periaqueductal gray(Fig 3D, DMPAG) and superior colliculus(Fig 3D, SC) as well as cells of the epithalamus like posterior commissural(computer), precommissural(PrC) and the medial and lateral habenular nuclei(Fig 3E, MHb, LHb) and the ventrolateral periaqueductal gray region(Fig 3D, VLPAG). In Fig 3F, moving subthalamically a clear profile of robust TCF7L2 labeled cells may be noticed composing the ventromedial hypothalamic nucleus(VMH) close to the pituitary(P) within this parasagittal section close to the midline. In the brain stem adjacent to the thalamus the reticular cells in the pons had been identified to exhibit a strong immunoreactive label for TCF7L2(Fig 3F, RFp). This was located to be characteristic on the reticular cells throughout the brain stem such as these reticular cells of your medulla(Fig 3F, RFm) along with the gigantocellular r.