Note to users. If you're seeing this message, it means that your browser cannot find this page's style/presentation instructions -- or possibly that you are using a browser that does not support current Web standards. Find out more about why this message is appearing, and what you can do to make your experience of our site the best it can be.

Science 21 September 1962:
Vol. 137. no. 3534, pp. 979 - 980
DOI: 10.1126/science.137.3534.979
Prev | Table of Contents | Next

Articles

Myotonia in a Horse

Sheldon Steinberg 1 and Stella Botelho 1

1 Departments of Medicine and Physiology, Schools of Veterinary Medicine and Graduate Medicine, University of Pennsylvania, Philadelphia

Congenital myotonia, similar to that which has been reported in humans and in goats, is here reported for the first time in another species. Evidence is given to show (i) that the myotonic phenomenon is present despite complete block of neuromuscular transmission; (ii) prior to injection of curare, synchronous activity of muscle fibers may result not only from ephaptic stimulation of neighboring fibers but also from reflex firing; and (iii) water deprivation does not relieve the myotonia.

To Advertise     Find Products

Science. ISSN 0036-8075 (print), 1095-9203 (online)