Biomedical subjects
Publications and source records attributed to H M Allen.
Urine volume and osmolality were studied in two schizophrenic patients with hyponatremia and six normal subjects after they smoked or ingested cigarettes. The results suggest that cigarette use may contribute to the development of hyponatremia by impairing water excretion.
The authors present a review of the toxicology, pathophysiology, and treatment of paraquat, a potent herbicide.
Nephrogenic diabetes insipidus (NDI) is a frequent complication in patients receiving long-term lithium therapy. Both thiazide diuretics and amiloride may reduce the polyuria, but the use of each is associated with problems. We report the results of a clinical trial using the nonsteroidal anti-inflammatory drug indomethacin to treat a patient with well-documented lithium-induced NDI that persisted following cessation of lithium treatment. The administration of a single dose of indomethacin resulted in a dramatic decrease in urine volume and increase in urine osmolality that persisted for several hours, and was independent of renal hemodynamic changes. Subsequently, the patient experienced a sustained, favorable effect on her polyuria during long-term (3 months) indomethacin therapy without a deleterious effect on her renal function. Indomethacin may be a useful therapeutic tool for the amelioration of lithium-induced NDI.
We report a case of generalized malignant acanthosis nigricans (AN) secondary to metastasizing squamous cell carcinoma of the cervix uteri. The disease initially manifested in the perineum as condyloma acuminatum-like lesions. Subsequently, most of the cutaneous surface and the mucosa of the vulva, mouth, tongue, and the palpebral conjunctiva became involved. The association of AN with a squamous cell carcinoma is rare, and conjunctival involvement is unusual.