The present paper is concerned mainly with two problems: the fine structural changes of the thyroid gland after hypophysectomy and the inhibition of the endocytic effect of TSH by actinomycin D. It has been well known that the thyroid gland is stimulated by the TSH secreted from the adenohypophysis. Numerous papers have been published dealing with the electron microscopy of the thyroid gland fo...

Amos, D. B., Nicks, P. J., Peacocke, N., and Sieker, H. 0. (1965). 7. clin. Invest., 44, 219. Bach, F., and Hirschhorn, K. (1964). Science, 143, 813. Bain, B., Vas, M. R., and Lowenstein, L. (1964). Blood, 23, 108. Bateman, A. J. (1965). Lancet, 1, 1117. Berroche, L., Maupin, B., Hervier, P., and Dausett, J. (1955). Vox Sang. (Basel), 5, 82. Brent, L., and Medawar, P. B. (1963). Brit. med. 7., ...

It is now generally accepted that hyperaldosteronism is associated with such oedematous states as the nephrotic syndrome, cirrhosis of the liver, and congestive heart failure (Wolff et al., 1964); that the renin-angiotensin system plays an important role in the regulation of aldosterone secretion (Genest et al., 1960; Laragh et al., 1960; Carpenter, Davis, and Ayers, 1961; Bartter et al., 1961;...

' Watson, J. D., and F. H. C. Crick, in Viruses, Cold Spring Harbor Symposia on Quantitative Biology, vol. 18 (1953), p. 123. 6Koch, A. L., and C. Miller, J. Theoret. Biol., 8, 71 (1964). 7 Fong, P., these PROCEEDINGS, 52, 641 (1964). 8 Dounce, A. L., J. Theoret. Biol., 2, 152 (1962). 9 Cavalieri, L. F., and B. J. Rosenberg, in Progress in Nucleic Acid Research, ed. J. N. Davidson and W. E. Coh...

6 Lehrer, S. S., and G. D. Fasman, Biopolymers, 2, 199 (1964). 7Magnasco, V., G. Gray, and C. Nicora, Nuovo Cimento, 34, 1263 (1964). 8 Natta, G., and P. Corradini, Makromol. Chem., 16, 77 (1955); Nuovo Cimento, Suppl., 15, 68 (1960). 9 Corradini, P., and P. Ganis, Nuovo Cimento, Suppl., 15, 104 (1960). 10 Powell, J., Computer J., 7, 155 (1964). 11 Corey, R. B., and L. Pauling, Proc. Roy. Soc. ...

The increased destruction of red cells after some corrective cardiac procedures has been recognized (Neill, Farman, Sigler, and Bahnsen, 1961; Sayed, Dacie, Handley, Lewis, and Cleland, 1961; Verdon, Forrester, and Crosby, 1963; Gehrmann and Loogen, 1964; Marsh, 1964; Reed and Dunn, 1964; Stevenson and Baker, 1964). Despite increased haemolysis, anaemia is not always present, since a normal bon...

Since the initial reports by Contorni (1960) and Toole (1961) concerning the reversal of blood flow in the vertebral artery, several similar reports have been published (Reivich et al., 1961; Parrott, 1964; Swales and Farrow, 1964; Steinberg and Halperin, 1963; Patel and Toole, 1965). This condition became known as the subclavian steal syndrome. Almost all the reported cases describing the anat...