Dysplasia epiphysealis hemimelica at the metacarpophalangeal joint.

Dysplasia epiphysealis hemimelica (DEH) or Trevor's disease is a rare developmental disorder of asymmetric epiphyseal cartilage overgrowth accompanied by an accessory, epiphyseal ossification center. No published reports exist of metacarpal or phalangeal DEH. We report a case of bilateral DEH of the index finger: right-sided distal index metacarpal and left-sided index proximal phalanx.

Epidemiology of tennis, squash, and racquetball injuries.

This article enumerates and examines the existing epidemiologic data on racquet sports injuries. A framework is provided for the evaluation and interpretation of future studies and research.

The effect of cholera toxin on choroid plexus carbonic anhydrase activity in vitro.

The effects of the adenylate cyclase agonists cholera toxin and prostaglandin E2 on carbonic anhydrase activity in vitro was measured in choroid plexuses isolated from Sprague-Dawley rats. Choroid plexuses were incubated in buffer at 38 degrees C (pH 7.4) with either cholera toxin or prostaglandin E2 (PGE2) at a concentration and for a time period that had been shown in earlier studies to result in maximal stimulation of cyclic AMP production.