Higher fasting plasma glucose levels within the normoglycemic range constitute an independent risk factor for type 2 diabetes among young men, and such levels may help, along with body-mass index and triglyceride levels, to identify apparently healthy men at increased risk for diabetes.
OBJECTIVE -The association between changes in triglyceride concentrations over time and diabetes is unknown. We assessed whether two triglyceride determinations obtained 5 years apart can predict incident type 2 diabetes.RESEARCH DESIGN AND METHODS -Triglyceride levels at baseline (time 1) and 5 years later (time 2), followed by subsequent follow-up of 5.5 years, were measured in 13,953 apparently healthy men (age 26 -45 years) with triglycerides Ͻ300 mg/dl (Ͻ3.39 mmol/l).RESULTS -During 76,742 person-years, 322 cases of diabetes occurred. A multivariate model adjusted for age, BMI, total cholesterol-to-HDL cholesterol ratio, family history of diabetes, fasting glucose, blood pressure, physical activity, and smoking status revealed a continuous independent rise in incident diabetes with increasing time 1 triglyceride levels (P trend Ͻ 0.001). Men in the lowest tertile of time 1 triglyceride levels who progressed to the highest tertile over follow-up (low-high) exhibited a hazard ratio (HR) of 12.62 (95% CI 3.52-31.34) compared with those remaining in the lowest tertile at both time points (reference group: low-low). Whereas men who were at the top triglyceride level tertile throughout follow-up (high-high) had a HR for diabetes of 7.08 (2.52-14.45), those whose triglyceride level decreased to the lowest tertile (high-low) exhibited a HR of 1.97 (0.67-6.13). Alterations in triglyceride levels during follow-up were associated with changes in BMI, physical activity, and eating breakfast habit (P Ͻ 0.05), but remained an independent modifier of diabetes risk even after adjustment for such changes.CONCLUSIONS -Two measurements of fasting triglyceride levels obtained 5 years apart can assist in identifying apparently healthy young men at increased risk for diabetes, independent of traditional risk factors and of associated changes in BMI and lifestyle parameters.
Two triglyceride measurements obtained 5 years apart may assist in assessing CHD risk in young men. A decrease in initially elevated triglyceride levels is associated with a decrease in CHD risk compared with stable high triglyceride levels. However, this risk remains higher than in those with persistently low triglyceride levels.
As the relationship between tobacco smoking and acne remains unclear, we examined the relationship between cigarette smoking and severe acne in a large cohort of young men. Trained nurses interviewed subjects upon discharge from compulsory military service, regarding family history, habits, and tobacco smoking habits. Data was correlated with severe acne status, as diagnosed and coded by board-certified dermatologists. In total, 27,083 male subjects participated in the study from 1983 to 2003, of which 237 (0.88%) had severe acne, 11,718 (43.27%) were active smokers, and 15,365 (56.73%) were nonsmokers at the time of interviews. Active smokers showed a significantly lower prevalence of severe acne (0.71%) than nonsmokers (1.01%) (P = 0.0078). An inverse dose-dependent relationship between severe acne prevalence and daily cigarette consumption became significant from 21 cigarettes a day (chi2 and trend test: P < 0.0001), odds ratio: 0.2 (95% CI: 0.06-0.63). The study did not aim to establish a temporal correlation, and passive smoking and acne treatments were not measured. Previous in vitro and clinical studies strongly support an association with nicotine. We suggest a trial with topical nicotine treatment for acne to further investigate this association.
Asthma status may affect the prevalence of major autoimmune disorders. Preexisting asthma seems to protect against the development of autoimmune disorders to varying degrees in men and women.
The positive association between obesity and smoking suggests that obesity is not a deterrent to smoking and also that smoking does not help to prevent obesity.
A report of seven people who accidentally drank a juice contaminated with CS (o-chlorobenzylidene malononitrile) is given. Due to its mucosal irritating properties, CS (also known as "tear gas") is commonly used by policemen and soldiers in riot control. However, only a few reports of its ingestion by humans exist. Ingestion of CS may cause immediate irritation of the oral mucosa and gastrointestinal symptoms later on. Damage of internal organs, which has been shown in animals but only rarely in humans, is probably related to the dose ingested. The extensive use of CS gas merits recognition of the signs and symptoms of its exposure in order to reduce anxiety in both patients and medical staff and to facilitate fast and efficient management.
Cystinuria is a hereditary disorder manifested by the development of kidney stones. Three subtypes of the disease have been described, based on urinary excretion of cystine and the dibasic amino acids in heterozygotes, and oral loading tests in homozygotes. Cystinuria is very common among Libyan Jews living in Israel. Recently, we mapped the disease-causing gene in Libyan Jews to 19q, and have shown a very strong founder effect. In this report we present the results of biochemical and clinical studies performed on Libyan Jewish cystinuria patients and members of their families. High levels of cystine and the dibasic amino acids in heterozygotes support previous data that cystinuria in Libyan Jews is a non-type I disease. Oral loading tests performed with lysine showed some degree of intestinal absorption, but less than in normal controls. Previous criteria for determining the disease type, based solely on urinary amino acid levels, proved useless due to a very wide range of cystine and the dibasic amino acids excreted by the heterozygotes. Urinary cystine levels were useful in distinguishing between unaffected relatives and heterozygotes, but were unhelpful in differentiating between heterozygotes and homozygotes. Urinary levels of ornithine or arginine, and the sum of urinary cystine and the dibasic amino acids, could distinguish between the last two groups. Among stone formers, 90% were homozygotes and 10% were heterozygotes; 15% of the homozygotes were asymptomatic.
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