WebApr 27, 2001 · a: Side view of an E10.5 transgenic embryo at the level of the otic vesicle. An additional ectopic otic vesicle-like structure (arrowhead) is seen adjacent to the otic vesicle (arrow). b: Hematoxylin-eosin staining of a section of the embryo seen in (a) at the level of the otic vesicle. The morphologic appearance of the additional vesicle is ... WebDec 20, 2024 · Age-related neurosensory deficit of the inner ear is mostly due to a loss of hair cells (HCs). Development of stem cell-based therapy requires a better understanding of factors and signals that drive stem cells into otic sensory progenitor cells (OSPCs) to replace lost HCs. Human induced pluripotent stem cells (hiPSCs) theoretically represent …

Identification and analysis of genes from the mouse otic vesicle …

WebMar 21, 2002 · The reduced otic vesicle of mice carrying a targeted disruption of the Raldh2 gene (Table 1) appears to be lateralized: expression of Pax2, a medial marker, is lost, whereas that of Nkx5.1, a … WebAug 1, 2003 · Transplantation studies in amphibia and avians have established that the region of surface ectoderm competent to form an otic vesicle is initially quite large (for reviews, see Torres and Giraldez, 1998; Baker and Bronner-Fraser, 2001; Noramly and Grainger, 2002).When quail ectoderm from the midbrain or somitic region in 1-6 somite … the amazing spiderman clipart

Otic vesicle definition of otic vesicle by Medical dictionary

WebZ-section movie of 5 day ear. Description: : The auditory (hearing) and vestibular (balance) organ of the fish, equivalent to the inner ear of amniotes (fish do not have an outer or middle ear). Develops from a cranial ectodermal thickening, the otic placode, which arises on either side of the head midway between the eye and the first somite. The eyes begin to develop as a pair of diverticula (pouches) from the lateral aspects of the forebrain. These diverticula make their appearance before the closure of the anterior end of the neural tube; after the closure of the tube around the 4th week of development, they are known as the optic vesicles. Previous studies of optic vesicles suggest that the surrounding extraocular tissues – the surface ectoderm and extraocular mesenchyme – are necessary for normal eye growth and differ… Webotic epithelium fused at the 21-somite stage, X-gal stain-ing expanded to cover the entire dorsal half of the otic epithelium and remained this way throughout the period of otic vesicle maturation (Fig. 1d–f). Thus, from placode to vesicle stages, Wnt reporter activity was detected in dorsal portions of the developing inner ear. the amazing spider man comic online free