Biomedical subjects
Publications and source records attributed to J Koval.
The social service providers and physicians who encounter elder abuse have several potential avenues of intervention open to them in helping the elderly. Practice and training issues are discussed that are relevant for improving interventions and referrals in cases of family abuse of the elderly.
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This study examined the immediate influence of intravenous amino acids and glucose on sleep as measured by all-night EEG recording. The study on 9 normal female subjects was of a latin-square design. Slow wave sleep (SWS) was increased by both solutions whilst dream sleep (REM) was decreased by amino acids and increased by glucose. Total sleep time was not affected. Subjective feelings as to restlessness, quality and depth of sleep under the impact of the various solutions were gathered. The work further elucidates the effect of nutrition on sleep and supports certain theories as to the function of the main sleep component.
Nocturnal plasma catecholamine, tryptophan, glucose, and free fatty acid levels have been measured in 19 subjects who regularly awoke from sleep with migraine. All-night polygraphic sleep recordings were also made. 13 subjects were studied on a second occasion allowing within-subject control as well as group comparison. Plasma total catecholamine and specifically plasma-noradrenaline levels were significantly higher in the three hours before the subjects awoke with migraine. No differences were found in plasma tryptophan, glucose, insulin, and free fatty acid levels in the migraine/no-migraine categories. Waking with migraine occurred significantly more often from rapid-eye movement (REM) sleep. There were no other differences in sleep pattern in the migraine/no-migraine categories.
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Electroencephalographic (E.E.G.) sleep changes were studied in eight young healthy male subjects who were given a normal balanced diet or a high-carbohydrate/low-fat or low-carbohydrate/high-fat isocaloric diet, according to an experimental design. Significantly less slow-wave sleep (S.W.S.) was found after consuming a high-carbohydrate/low-fat diet than after consuming a normal balanced diet or a low-carbohydrate/high-fat diet. The latter two diets did not differ in terms of the amounts of S.W.S. Both high-carbohydrate/low-fat and low-carbohydrate/high-fat isocaloric diets, especially the former, were associated with significantly more rapid-eye-movement (R.E.M.) sleep than was the normal balanced diet. These findings emphasise the importance of daily diet for the following night's sleep.