In controlled clinical studies of adult diabetics a 42% incidence of signs of Dupuytren's disease was found. The incidence was highest in the older patients with a longer history of diabetes, but was not related to the severity of the diabetes. The features of Dupuytren's disease in the diabetics has a distinctive pattern, being more severe in men than women and, compared with controls, having a radial shift towards the middle finger. The disease was mild and of benign prognosis, rarely needing operation. In a further study, 13% of patients with Dupuytren's disease were found to have a raised blood glucose level. The question is posed as to whether the biochemical disturbance causes the Dupuytren's disease or whether the pattern of inheritance predisposes to both Dupuytren's disease and diabetes.
The purpose of this study was to determine the effect of dietary cholesterol on biliary lipids in subjects with and without gallstones. Twelve patients with asymptomatic gallstones (six men, six women) were assigned diets containing 500, 750, and 1000 mg cholesterol daily for 3-wk periods in random sequence. Seven healthy women similarly were assigned diets containing 500 and 1000 mg cholesterol daily. With increasing dietary cholesterol in patients with gallstones, biliary saturation indices and molar percents of cholesterol and phospholipids increased significantly while molar percent of biliary bile acids decreased significantly. With increasing dietary cholesterol in healthy women, the biliary saturation index and molar percent of cholesterol increased significantly; the mean saturation index exceeded unity on the diet containing 1000 mg cholesterol daily. In conclusion, augmented dietary cholesterol for brief periods increased biliary cholesterol saturation in subjects with and without gallstones.
Patients with insulin dependent diabetes mellitus who develop proteinuria may die prematurely, whereas those who do not develop this complication have a comparatively normal life span. The excess mortality in diabetics with proteinuria is from cardiovascular as well as renal disease, but the reason is unclear. Risk factors for vascular disease were therefore assessed in 22 insulin dependent diabetics with proteinuria, but not renal failure, who were matched for sex, age, duration of diabetes, and glycated haemoglobin (HbA,) values with a similar number who had normal urinary albumin excretion rates.Macrovascular disease (ischaemic heart disease and peripheral vascular disease) was present in 10 patients with proteinuria but in only three with normal albumin excretion rates, and proliferative retinopathy was detected in 11 and four patients in the two groups. There was no significant excess of smokers in the group with proteinuria. Blood pressure was, however, higher in the patients with proteinuria-mean systolic pressure 161 (SD 18) mm Hg compared with 135 (19) mm Hg (95% confidence interval of difference between means 15 to 38 mm Hg); mean diastolic pressure 90 (SD 12) mm Hg compared with 79 (15) mm Hg (confidence interval 3 to 19 mm Hg). The concentration of serum high density lipoprotein (HDL) cholesterol isolated by precipitation was lower in the patients with proteinuria (confidence interval 0-02 to 0-41 mmol/l). Their concentration of HDL2 cholesterol isolated by ultracentrifugation was also decreased (confidence interval 0-02 to 0-40 mmol/l), whereas HDL3 cholesterol tended to be increased (confidence interval -0-01 to 0-23 mmol/l). There was also a trend for serum cholesterol concentrations to be higher in the presence of proteinuria (confidence interval -0-39 to 1-20 mmol/1).
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