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The prevalence of LV diastolic dysfunction in patients with COPD varies according to the used echocardiographic approach. Further studies are recommended to determine which approach is the most accurate in estimating the true prevalence of LV diastolic dysfunction among this group of patients.

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SummaryDetermination of the effect of prolactin administration on glucose, non-esterified fatty acids, insulin, and liver glycogen concentrations in male rabbit was the aim of the present investigation. Over-secretion of prolactin has been found to be one of the most important causes of male infertility in humans [l, 2] and animals [3,4]. Very little however has been published about the effects of prolactin on carbohydrate metabolism. However, it was reported that lipid abnormalities were most common in infertile men [5]. It was suggested that non-esterified fatty acid (NEFA) level exerts a direct action at the testicular function in man [6]. It was therefore of interest to study the metabolic effect of prolactin on the levels of glucose, NEFA, and insulin in serum and glycogen concentration in liver. This necessiated the establishment of the effect of prolactin administration on the liver and testis and to find to what extent prolactin was responsible for the hepatic and testicular functions in male rabbits.

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