Albert Segaloff 1916-1985. R. Bruce Gabbard............................................................................................ 1 Howard J. Ringold 1923-1984. Albert Segaloff............................................................................................... 5 Announcement
Announcement ................................................................................................ 9 Biosynthesis o f B u f a d i e n o l i d e s in Toads. V. The Origin o f t h e C h o l e s t e r o l Used by T o a d P a r o t o i d G l a n d s for B i o s y n t h e s i s o f B u f a d i e n o l i d e s . T.A. Santa Coloma, H.M. Garraffo, O.P. Pignataro, E.H. Charreau and E.G. Gros..3217 ............................................................................................. l l The Measurement o f 4-Androstene-3,11,17-Trione (ll-Oxo-Androstenedione) By Radioimmunoassay in Human Plasma. R. Schlaghecke, H.K. Kley and H.L. Kruskemper..3266 ..................................... 23
E f f e c t s o f S p h i n c t e r e c t o m y on Bile A c i d E n t e r o h e p a t i c C i r c u l a t i o n in Dogs. W.T. Beher, S.G. Dienst, G.J. Lin and S. S t r a d n i e k s . . 3 2 7 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35 D e t e r m i n a t i o n o f 3 8 - H y d r o x y - 5 - C h o l e n - 2 4 - O i c A c i d a n d i t s S u l f a t e in H u m a n Serum by Gas C h r o m a t o g r a p h y - M a s s S p e c t r o m e t r y . Masahiko Tohma, Hiromi Wajima, Reijiro Mahara Takao Kurosawa and Isao Makino..3277 .......................................................................................... 47
E f f e c t o f A c u t e A C T H A d m i n i s t r a t i o n on P l a s m a S t e r o i d L e v e l s in t h e Dog. Yves T r e m b l a y and Alain Belanger..3279 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57 V a r i a t i o n s in t h e L e v e l s o f A s t e r o n e and A s t e r o g e n o l , Two S t e r o i d s F r o m t h e Saponins o f t h e S t a r f i s h , A s t e r i a s Vulgaris (Verrill). D. J e a n Burnell, John W. ApSimon and Michael W. Gilgan..3285 . . . . . . . . . . . . . . . . . . . . . . . . 67 I n a b i l i t y o f C h o l y g l y e i n e H y d r o l a s e t o C l e a v e t h e A m i d e Bond o f T a u r o n o r c h o l i c Acid. J.O. Whitney and D.A. Vessey..3291 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77 P o t e n t i a l T u m o r o r O r g a n - I m a g i n g A g e n t s 24. R a d i o i o d i n a t e d P r e g n e n o l o n e Esters. M. Van Dort, S.W. Schwendner, R.W.S. Skinner, M.D. Gross and R.E. Counsell ..3293 ........................................................................................................... 85
Bile A c i d s . LXXHI. S y n t h e s i s o f A n a l o g s o f 7 a - H y d r o x y - 4 - C h o l e s t e n - 3 - O n e a s Substrates for Hepatic Steroid 12a-Hydroxylase. Michael J. Joyce, S.V. Hiremath, Michael B. Mattammal and William H. Elliott ..3297 ........................................................................................................... 95