Search PubMed⌕ Search

Biomedical subjects

J Dalton

Publications and source records attributed to J Dalton.

64 records · Page 4Linked to original sources

19-Hydroxy-prostaglandin E and infertility in human males.

We measured the content of 19-hydroxy-prostaglandin E (19-OH-PGE) and prostaglandin E (PGE) in the semen of 10 infertile males by alkaline dehydration, thin layer chromatographic separation and ultraviolet spectrophotometry. 7 fertile males were also studied. In both groups the content of seminal 6-keto-prostaglandin F1 alpha (6-keto-PGF1 alpha) also was measured by thin layer chromatographic separation and highly specific radioimmunoassay. The amounts of 19-OH-PGE and PGE were significantly lower (p < .02, p < .05) in the infertile group than the fertile group. Differences in mean seminal 6-keto-F1 alpha were not significant. The uterine stimulatory actions of 19-OH-PGE demonstrable in the monkey may apply to fertility in man.

6-Ketoprostaglandin F1 alpha↗

Acute and chronic effects of lithium chloride on physiological and psychological measures in normals.

In the acute experiment six healthy volunteers were given orally two doses of lithium chloride, 16 and 32 mmol, and placebo sodium chloride 32 mmol in a double-blind standardized procedure, with a 1-week interval between treatments. Compared to sodium, lithium produced a decrease in subjective well-being, decrease of skin conductance fluctuations, and increase in plasma calcium concentrations. Dose-related effects were maximal at the first hour after ingestion, decreasing or disappearing at 3--5 h. Most effects did not correlate with plasma or erythrocyte lithium concentrations, but drug effects and feelings of nausea were highly correlated. Accordingly, most acute effects seemed due to peripheral drug effects. In the chronic experiment six healthy volunteers were given orally 16 mmol of lithium chloride or sodium chloride (placebo) twice a day for 1 week in a double-blind standardized procedure with a 2-week interval between treatment weeks. Compared to placebo, lithium produced feelings of subjective impairment, an increase in EEG slow waves and of auditory evoked response variability, a deficit in long-term memory, and an increase in plasma magnesium concentrations. Most lithium effects did not correlate with plasma or erythrocyte lithium concentrations.

Adult↗