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Development of the epiphysis in the chick

, : Development of the epiphysis in the chick. Monitore Zool Ital 40(11/12): 334-335

In the epiphyseal region of chicks of 82 hours' incubation the posterior diverticulum (pineal primordium) forms part of the posterior wall of the anterior one (primordium of the parietal eye). At this stage the picture presented is identical with that of the parietal organs of Gongylus at the stage which precedes the separation of the primordium of the parietal eye from that of the pineal body. In the later development (92, 106, 108, 120, 127 hrs.), 2 epithelial proliferations may be seen, associated but quite distinct, a larger anterior one at the apex of the primordium of the parietal eye and a second smaller one at the apex of the pineal primordium. The 2 proliferations eventually fuse, as observed by Bozza in some mammals and in man. The author concludes that the formative material of the chick's epiphysis is derived for the most part from the diverticulum that corresponds to the primordium of the parietal eye of reptiles.


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Hashimoto, Y.; Sakashita, T.; Fukatsu, H.; Sato, H.; Kobayashi, M., 2014: A new synthetic route to N-benzyl carboxamides through the reverse reaction of N-substituted formamide deformylase. Previously, we isolated a new enzyme, N-substituted formamide deformylase, that catalyzes the hydrolysis of N-substituted formamide to the corresponding amine and formate (H. Fukatsu, Y. Hashimoto, M. Goda, H. Higashibata, and M. Kobayashi, Proc....

Flowers, E.; Won, G.Y.; Fukuoka, Y., 2015: MicroRNAs associated with exercise and diet: a systematic review. MicroRNAs are posttranscriptional regulators of gene expression. MicroRNAs reflect individual biologic adaptation to exposures in the environment. As such, measurement of circulating microRNAs presents an opportunity to evaluate biologic changes a...

Lerebours, F.; Bieche, I.; Bertheau, P.; Turpin, E.; Plassat, F.; Vidaud, M.; D.R.quancourt, A.; Janin, A.; D.T.e, H.; Lidereau, R., 2000: Somatic genetic alterations in inflammatory breast cancer. Breast Cancer Research & Treatment 64(1): 135, November

Anonymous, 2001: Geological Survey of Sweden (SGU). Pages 113-114:

Barrett D.W.A.; George E.F., 1969: The auxinic activity of thio glycolic acid derivatives of beta di ketones tomato d tobacco d potato d herbicides iaa wheat m coleoptile test. Physiologia Plantarum 22(1): 18-24

Hoi H.; Winkler H., 1991: Predation pressure on bird nests effects of habitat complexity. Journal fuer Ornithologie 132(2): 215-217

Jackson, M.W.; Silva-Herzog, E.; Plano, G.V., 2004: The ATP-dependent ClpXP and Lon proteases regulate expression of the Yersinia pestis type III secretion system via regulated proteolysis of YmoA, a small histone-like protein. The Yersinia pestis plasmid pCD1-encoded type III secretion system (T3SS) is essential for the pathogenicity of Y. pestis in mammalian hosts. T3SS-associated genes are maximally expressed at 37degreeC in the absence of extracellular calcium. Expre...

Amin, A.H.; Mehta, D.R., 1959: A bronchodilator alkaloid (vasicinone) from Adhatoda vasica Nees. Nature 184(Suppl 17): 1317-1317

Paulus W.J.; Heyndrickx G.R.; Andries E., 1988: Orifice variability of the stenotic aortic valve evaluation before and after balloon valvuloplasty. Circulation 78(4 PART 2): II124

Sobel, A.; Lagrue, G., 1976: Role of circulating immune complexes in nephrology. La Nouvelle Presse Medicale 5(23): 1461-1464