Biomedical subjects
Publications and source records attributed to B Ray.
Human erythrocyte carbonic anhydrase B was purified and immobilized in polyacrylamide gel. As compared to the soluble enzyme, the immobilized enzyme was considerably more resistant to heat and sulphanilamide action.
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A patient with hidradenitis suppurativa of the scrotum is described. The clinical presentation and treatment are discussed.
We reviewed 23 cases of primary carcinoma of the male urethra and compared the clinical findings, treatment and results to the experiences previously reported. Patients with lesions of the pendulous urethra managed by appropriate amputation of the penis with ilio-inguinal node dissection for groin metastases had a good prognosis, whereas patients with lesions of the bulbo-membranous or prostatic urethra had a poor prognosis. Despite occasional successful results with conservative surgical excision and over-all poor results with radical excision the generally extensive nature of such tumors necessarily makes radical excision the treatment of choice.
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The natural history, management and prognosis of scrotal carcinoma are reviewed in 19 cases and a method to stage the tumor is presented. Ten patients were rendered free of evidence of cancer, 9 of whom have survived more than 5 years. Wide local excision of the primary lesion with radical ilioinguinal dissection for proved inguinal lymph node metastases is the present recommendation. For non-resectable regional metastatic disease no treatment of established effectiveness is available. Irradiation has produced benefit on rare occasions and hemipelvectomy may be considered in selected cases.
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Twenty-six patients with advanced prostatic carcinoma refractory to conventional endocrine treatment were treated with a new oral nonsteriodal antiandrogen, flutamide. There were 6 responders and 20 failures. No serious toxicity attributable to flutamide was observed.
Surface plating of coliforms on Trypticase soy agar, followed by 1 to 2 h of incubation at 25 C and subsequent overlay with violet red bile agar, was found to be a useful method for the repair and enumeration of coliforms injured by freezing.
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