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Biomedical subjects

J H Check

Publications and source records attributed to J H Check.

At least 271 records · Page 15Linked to original sources

Improvement of intractable acne in a man following testosterone suppression using danazol.

Sometimes, oral contraceptives have been successful in treating resistant cases of acne in girls, probably by reducing testosterone levels (both total and free) by suppressing the pituitary gonadotropins. Danazol is a new agent which also suppresses gonadotropins, but it is an impeded androgen with negligible estrogen effects. It would seem, therefore, a more appropriate drug to treat intractable acne in men since it suppresses testosterone levels. Presented herein is a twenty-five year old man with severe acne that did not improve after treatment with conventional topical agents and systemic antibiotics. The patient's condition showed considerable improvement after three months of danazol therapy. However, although, the acne remained suppressed while the patient was receiving the medication, when the medication was stopped, the acne returned. Again, the condition was suppressed after the medication was resumed. Other than mild weight gain, no significant side effects were noted in this patient. His libido remained unchanged and no problems with impotence developed. Danazol may prove to be a useful drug for treating acne especially in postpubertal men in whom the condition does not respond with conventional therapy.

Acne Vulgaris↗

Inhibition of spontaneous AKR leukemia by multiple inoculations of Corynebacterium parvum.

In previous studies we have shown that AKR mice could be protected from spontaneous leukemia by specific immunotherapy in combination with splenectomy. In this experiment we investigated the effects of nonspecific immunotherapy with C. parvum in a similar regimen. It was found that bi-weekly, ip inoculations of 0.7 mg of C. parvum could significantly protect AKR mice from spontaneous tumors, and that splenectomy could not modify this effect. Thus, the spleen does not appear to play a determinant role in mediating the protective effects of C. parvum, as had been suggested in other systems.

Animals↗

"Normal suppression" to dexamethasone in Cushing's disease: an expression of decreased metabolic clearance for dexamethasone.

The adrenal cortical function of a patient with pituitary-dependent Cushing's syndrome exhibited normal responsiveness to conventional doses of dexamethasone (Dex) over several years of evaluation. "Periodic hormonogenesis" did not seem to explain the phenomenon. Plasma concentrations of Dex were measured to ascertain whether an abnormality in Dex metabolism might explain the apparent discrepancy in Dex responsiveness. Plasma levels of Dex after oral administration of the steroid were higher than normal, suggesting that decreased clearance of Dex accounts for the phenomenon of "normal suppression" in this patient with Cushing's syndrome.

Adrenocorticotropic Hormone↗

A testosterone-secreting adrenal adenoma.

A third case of a testosterone-secreting adrenal adenoma is presented. It differs from the other 2 cases in additionally having glucocorticoid abnormalities. Clinically, the patient had been considered as having polycystic ovaries and did show some improvement with estrogen therapy. In fact, were it not for enlarging uterine leiomyomata on this therapy which prompted a more in depth investigation to look for alternative therapy, this potentially malignant adrenal lesion may never have been discovered.

17-Hydroxycorticosteroids↗

Androgen therapy of a varicocele.

A case of asthenospermia and decreased semen volume with consequent infertility is reported. The patient had large bilateral varicoceles but refused an operation. Significant improvement of volume and motility occurred after treatment with fluoxymesterone and pregnancy was achieved.

Adult↗