Watch-ing out for chick limb development
نویسندگان
چکیده
منابع مشابه
Watch-ing out for chick limb development.
Time control is a crucial issue during embryonic development. Nevertheless, little is known about how embryonic cells measure time. Until recently, the only molecular clock known to operate during vertebrate embryonic development was the somitogenesis clock, exclusively functioning in coordinating the precise timing of each new pair of somites formed from the presomitic mesoderm. We have recent...
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The chick limb bud is a powerful experimental system in which to study pattern formation in vertebrate embryos. Exogenously applied retinoic acid, a vitamin A derivative, can bring about changes in pattern and, on several grounds, is a good candidate for an endogenous morphogen. As such, the local concentration of retinoic acid might provide cells with information about their position in relati...
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BACKGROUND Peyronie's disease is a relatively common condition in urological practice, but is still poorly identified and understood in the wider medical community and by most of the public. Identifying the condition and appropriate referral for expert opinion can significantly lessen the physical and psychological effect on patients. OBJECTIVE The objective of this article is to provide gene...
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A 51-year-old man with a history of progressive renal erythrocytes and 2–4 leucocytes per high power field without proteinuria or casts. Renal ultrasound revealed insufficiency that developed over a period of 4 months was referred to our unit in May 1998. Recent medical bilateral hydronephrosis. Neither renal ultrasound nor abdominal radiography revealed the presence of stones history revealed ...
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ژورنال
عنوان ژورنال: Integrative and Comparative Biology
سال: 2007
ISSN: 1540-7063,1557-7023
DOI: 10.1093/icb/icm082