𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Estrogen and glucocorticoid receptors in adult canine articular cartilage

✍ Scribed by PETER C. M. Young; Michael T. Stack

Book ID
102752273
Publisher
John Wiley and Sons
Year
1982
Tongue
English
Weight
546 KB
Volume
25
Category
Article
ISSN
0004-3591

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✦ Synopsis

Abstract

The cytoplasmic and crude nuclear fractions of adult mongrel dog articular cartilage contained estradiol‐ and dexamethasone‐binding components which had properties of physiologic steroid receptors. The equilibrium dissociation constants averaged 0.37 n__M__ for estradiol and 2.27 n__M__ for dexamethasone. The concentrations of estrogen receptors ranged from below 6 to 101 fmol/mg protein in the cytosols and from below 2.8 to 17.5 fmol/ΞΌg DNA in the nuclear fractions. Glucocorticoid receptors were detected in only 4 of 13 cytosols (range: 61.2–132 fmol/mg protein), whereas 10 of 13 nuclear fractions contained 0.8 to 46.8 femtomoles of the receptors for each microgram of DNA. There appeared to be no marked difference between the contents of either steroid receptor in female or male dog cartilage. No receptors were detected for androgen and progesterone.

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