Table of Contents

 ORIGINAL CONTRIBUTIONS

The Cysteine-rich C-Flanking Region of the Thyrotropin Receptor has Very Ancient Phylogenetic Origins: Implications from Sequence Analysis

V. Kaczur, I.A. Racz, A. Szendroi, M. Takacs and N.R. Farid, UK and Hungary ...... 43

Mutational Analyses of Connexin 26, Connexin 30 and Connexin 46 as Candidate Tumor Suppressor Genes in Parathyroid Carcinoma

J. Costa, T.M. Shattuck, Y. Imanishi, N. Palanisamy, R.D. Gaz, D. Shoback, O.H. Clark, J.M. Monchik, M.E. Wierman, A. Hollenberg, K. Tojo, R.S.K. Chaganti and A. Arnold, USA and Japan ....... 57

Inheritance of the Arg64 Polymorphic Variants of the b₃-Adrenergic Receptor is Linked to Impaired Insulin Secretion

H. Hui, J.D Walston and R. Perfetti, USA ......  63

Results of Calcitonin Screening in a Central Upper Austrian Region

M. Hatzl-Griesenhofer, R. Pichler, S. Bogner, S. Wölfl, A. Weinhäusel, H. Huber, W. Weidinger and M. Maschek, Austria .....  75

Multiple Endocrine Neoplasia 2B and an Undescended Thyroid Gland

J.A. Carney, D. Zimmerman and R.L. Telander, USA .........  87

BOOK REVIEWS  ......... 95

CALENDAR  ....... 99

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