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Biomedical subjects

B Kaplan

Publications and source records attributed to B Kaplan.

At least 415 records · Page 23Linked to original sources

Prevention of post-hysterectomy urinary retention by alpha-adrenergic blocker.

Micturition difficulties and urinary retention are common complications after abdominal or vaginal hysterectomy. Adrenergic receptors are located in the bladder neck and proximal urethra, and blocking these receptors with alpha-blockers such as phenoxybenzamine (Dibenzyline) may improve micturition and prevent postoperative urinary retention. In a randomized clinical trial, 51 patients who underwent total abdominal hysterectomy, received a prophylactic dose of Dibenzyline 10 micrograms orally 6-8 hours after operation and again the next day about 18 hours later. Only 2 of the 51 patients were found to have urinary retention, in comparison with 9 of 48 patients in the control group (p less than 0.05). Another group of patients who underwent vaginal hysterectomy were treated according to the same protocol. Eight of the 30 patients in this study group required catheterization to drain the overdistended bladder, in comparison with 16 of 26 patients in the control group (p less than 0.025). It seems from this clinical trial that prophylactic treatment with Dibenzyline is recommended after abdominal hysterectomy or vaginal operation in order to improve micturition and prevent urinary retention.

Adrenergic beta-Antagonists↗

Levamisole and agrandulocytosis.

Levamisole, originally developed as an anthelmintic, is used in the treatment of many disorders. Severe side-effects have been noted by some investigators, and a case is presented herein of levamisole-induced agranulocytosis.

Adult↗

Double-blind study of levamisole in aphthous stomatitis.

Sixty-five patients with recurrent aphthous stomatitis participated in a double-blind study to evaluate levamisole. Nineteen of 34 patients improved on levamisole and only five of 31 patients improved on placebo (P less than 0.004, chi-square with two degrees of freedom). After breaking the code and switching placebo patients to levamisole and non-responders to an alternate dosage schedule, 46 of 60 patients noted clinical improvement.

Adolescent↗

Characteristics of guinea pig IgE.

Anti-dinitrophenyl (DNP) IgE antibody was produced in guinea pigs (GP) by immunization and repeated boosters with 1 mug DNP-Ascaris extract in A1 (OH)3. The isoelectric point was determined to be 6.48 and the molecular weight to be 185,000 daltons. In absorbtion chromatography, rabbit anti-GPIgG1 could not absorb the anaphylactic activity of the IgE. The activity of IgE was destroyed by heating at 56 degrees C for 1 h. IgE persisted in the skin for at least 3 weeks.

Animals↗

Fucosidosis type 2.

Two siblings, 9 and 4 1/2 years old, had alpha-L-fucosidase deficiency, angiokeratoma, progressive psychomotor retardation, neurologic signs, coarse facila features, and dysostosis multiplex. It appears that genetic heterogeneity is present in fucosidosis; there are at least two types. In type 1, patients have no vascular lesions, but have rapid psychomotor regression, severe and rapidly progressing neurologic signs, elevated sodium and chloride excretion in the sweat, and fatal outcome before the sixth year. In type 2, patients have angiokeratoma, milder psychomotor retardation and neurologic signs, longer survival, and normal salinity in the sweat. Quantitative studies on erythrocytes and in saliva disclosed severely increased expressions of Lea and Leb. Biopsies of skin and gingiva showed alterations as seen in angiokeratoma. There was also evidence of lysosomal storage in vascular endothelium, eccrine sweat gland epithelium, and fibroblasts of the skin.

Adult↗