The apical ectodermal ridge (AER) is a structure that forms from the ectodermal cells at the distal end of each limb bud and acts as a major signaling...
25 KB (3,322 words) - 11:36, 28 December 2024
different genes, signals, and a unique region of ectoderm called the apical ectodermal ridge (AER). Research by Saunders and Gasseling in 1948 identified the...
15 KB (2,075 words) - 12:02, 28 December 2024
between specialized ectodermal cells and the underlying mesoderm. Epithelial-mesenchymal interactions between the apical ectodermal ridge (AER) and the underlying...
21 KB (2,617 words) - 01:17, 6 July 2024
be a result of a wedge-shaped defect of the apical ectoderm of the limb bud (AER: apical ectodermal ridge). Polydactyly, syndactyly and cleft hand can...
29 KB (3,025 words) - 12:02, 28 July 2024
anemia and TAR syndrome.Other possible causes are an injury to the apical ectodermal ridge during upper limb development, intrauterine compression, or maternal...
11 KB (1,457 words) - 02:42, 24 November 2023
develop. Saunders researched the vertebrate limb and studied the apical ectodermal ridge (AER). This research was critical in recognizing growth factors...
24 KB (3,334 words) - 15:30, 24 August 2024
and positive feedback retention of two signaling regions: the apical ectodermal ridge (AER) and the zone of polarizing activity (ZPA) with the mesenchymal...
24 KB (2,943 words) - 22:22, 30 December 2024
formation of an organizer at the end of the limb bud, called the apical ectodermal ridge (AER), which guides further development and controls cell death...
36 KB (4,234 words) - 06:01, 28 December 2024
abbreviated Aer Agranular endoplasmic reticulum, a cell organelle Apical ectodermal ridge, critical component of vertebrate limb development Albumin Excretion...
2 KB (330 words) - 00:43, 28 April 2024
Poland syndrome. Abnormality of an embryonic structure called the apical ectodermal ridge, which helps direct early limb development, may also be involved...
22 KB (2,232 words) - 07:12, 18 December 2024
lacrimal gland, tarsal glands, and the conjunctiva of the eye The apical ectodermal ridge, which induces the development of the limb buds of the embryo List...
2 KB (207 words) - 16:54, 8 May 2024
been made using chicken embryos, such as the discovery of the apical ectodermal ridge and the zone of polarizing activity. The chicken was the first...
68 KB (6,404 words) - 12:10, 29 December 2024
morphogen called fibroblast growth factors must be secreted from the apical ectodermal ridge. Sonic hedgehog has also been shown to act as an axonal guidance...
62 KB (7,249 words) - 16:46, 30 December 2024
involves many signaling molecules such as FGF, BMP, SHH and WNT. The apical ectodermal ridge is a structure found at the distal most tip which becomes a key...
11 KB (1,320 words) - 23:52, 2 December 2024
eventually becomes an apical ectodermal cap (AEC) that forms on the tip of the stump. This is similar to the embryonic apical ectodermal ridge, which forms during...
16 KB (1,692 words) - 07:51, 20 May 2024
progress zone is a layer of mesodermal cells immediately beneath the apical ectodermal ridge in the developing limb bud. The fate of the mesodermal cells is...
2 KB (208 words) - 08:53, 25 April 2023
parietal layer of lateral plate mesoderm. Ectodermal cells at the distal end of the buds form the apical ectodermal ridge, which creates an area of rapidly proliferating...
43 KB (5,261 words) - 11:06, 28 December 2024
early skeletogenesis, where nerves grow into the limb bud and the apical ectodermal ridge (AER), a structure that ensures proper limb development, appears...
83 KB (9,849 words) - 20:45, 17 December 2024
; Vogel A.; Booth I.; Martin G.R. (1993). "FGF-* replaces the apical ectodermal ridge and directs outgrowth and patterning of the limb". Cell. 75 (3):...
16 KB (1,935 words) - 09:06, 13 September 2024
distal end, the differentiation of skeletal elements occurs in an apical ectodermal ridge (AER) which expands in rays. A Zone of Polarizing Activity (ZPA)...
8 KB (1,002 words) - 11:28, 28 March 2024
ectoderm to form an important organizing structure called the apical ectodermal ridge (AER). The AER reciprocatively secretes FGF8 and FGF4 which maintains...
6 KB (674 words) - 09:27, 8 December 2024
glycosyltransferases. The gene products of radical fringe stimulate the Apical Ectodermal Ridge in limb-bud formation. The mouse and human Fringe family members...
2 KB (223 words) - 10:50, 30 March 2024
limb buds. Ultimately, TBX4 and TBX5 lead to the development of apical ectodermal ridge (AER) and zone of polarizing activity (ZPA) signaling centers in...
10 KB (1,078 words) - 03:27, 30 November 2023
the development map of cortical area. FGF8 signaling from the apical ectodermal ridge (AER), which borders the distal end of the limb bud, is necessary...
17 KB (2,175 words) - 03:31, 24 December 2023
patterning of the limb and has been implicated in the formation of the apical ectodermal ridge (AER). The AER is essential for the distal patterning of the limb...
3 KB (477 words) - 13:32, 11 September 2022
In 1969, a scientist named John Saunders established that the apical ectodermal ridge (AER)--a transparent rim along limb buds—plays an important role...
18 KB (1,857 words) - 03:53, 18 September 2024
resulting in a bulge. Afterwards, FGF10 will induce the formation of apical ectodermal ridge (AER) where the foot and hands will be formed. Lung development...
11 KB (1,338 words) - 10:26, 25 April 2024
acting as an autocrine or paracrine ligand. FGFs produced in the apical ectodermal ridge (AER) are critical for the proper forelimb and hindlimb outgrowth...
17 KB (2,075 words) - 06:47, 30 March 2024
that zone of polarizing activity (ZPA) requires maintenance of apical ectodermal ridge (AER). The dependence of ZPA on ARE indicates the linkage between...
7 KB (925 words) - 04:41, 26 February 2024
These transcription factors are Apical Ectodermal Ridge (AER) specific in limb development. The Apical Ectodermal Ridge signaling is important for specification...
7 KB (936 words) - 23:10, 4 April 2024