Line Transversals in Large T(3)- and T(4)-Families of Congruent Discs

Line Transversals to Translates of Unit Discs

Let F be a family of convex figures in the plane. We say that F has property T if there exist a line intersecting every member of F . Also, we say that the family F has property T (k) if every k−membered subfamily of F has property T . In this talk we will give some results concerning families of translates of the unit disc which have property T (3) or T (4).

Effect of ICV injection of ghrelin and leptin on T3 and T4 plasma levels in Rat

Introduction: Ghrelin, increases food intake, decreases T3 and T4 concentrations and stimulates insulin release, while leptin reduces food intake and suppresses appetite. Considering the importance of thyroid hormones, ghrelin and leptin in body metabolism, the purpose of this study was to investigate the effect of interactions between ghrelin and leptin (injected via ICV route) and plasma T...

Arbitrarily large neighborly families of congruent symmetric convex 3-polytopes

Clofibrate increases hepatic triiodothyronine (T3)- and thyroxine (T4)-glucuronosyltransferase activities and lowers plasma T3 and T4 concentrations in pigs.

In rats, clofibrate acts as a microsomal enzyme inducer and disrupts the metabolism of thyroid hormones by increasing hepatic glucuronidation of thyroxine. Whether similar effects occur in the pig has not yet been investigated. This study was performed to investigate the effect of clofibrate treatment on metabolism of thyroid hormones in pigs. To this end, an experiment with 18 pigs, which were...

Thyroid Hormones, T3 and T4, in the Brain

Thyroid hormones (THs) are essential for fetal and post-natal nervous system development and also play an important role in the maintenance of adult brain function. Of the two major THs, T4 (3,5,3',5'-tetraiodo-l-thyronine) is classically viewed as an pro-hormone that must be converted to T3 (3,5,3'-tri-iodo-l-thyronine) via tissue-level deiodinases for biological activity. THs primarily mediat...