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Objective To study the prevalence of hyperuricemia and its risk factors in elderly people of Yiyang District,Hunan Province,China.Methods A total of 1363 elderly people undergoing physical examination in our hospital were divided into hyperuricemia group (n=245) and control group (n=1118).Their general clinical data were recorded and compared.The risk factors for hyperuricemia were analyzed.Results The age was significantly older,number of males was significantly larger,the serum TG,LDL-C,urea,UA levels and body height,BMI,SBP were significantly higher while the serum TC and HDL-C levels and Cr clearance rate were significantly lower in hyperuricemia group than in control group (P＜0.05,P＜0.01).Pearson correlation analysis showed that serum UA level was positively related with age,serum TG and urea level,BMI,SBP and DBP,but negatively related with Cr clearance rate and serum TC,LDL-C,HDL-C levels (P＜ 0.01).Binary logistic regression analysis showed that age,male gender,hyperlipidemia,and obesity were the independent risk factors for hyperuricemia after adjustment of age (OR=1.857,95 ％ CI:1.302-2.649,P=0.001;OR=1.866,95％CI:1.363-2.555,P=0.000;OR=2.214,95％ CI:1.716-2.856,P=0.000).However,serum HDL-C level and Cr clearance rate were the protective factors for hyperuricemia (OR =0.388,95 ％ CI:0.242-0.623,P =0.000;OR =0.948,95％CI:0.937-0.959,P=0.000).Conclusion The prevalence of hyperuricemia is rather high in elderly people of Yiyang Distric,Hunan Province,China,suggesting that the lifestyle of elderly people should be improved and hyperuricemia should be treated with appropriate drugs.
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Objective To evaluate the prevalence and potential risk factors for pulmonary hypertension in the elderly hospitalized patients. Methods1093 elderly hospitalized patients aged (80.8 ± 9.8) years were examined by Doppler echocardiography for evaluating pulmonary hypertension which defined by pulmonary artery systolic pressure (PASP)≥40 mm Hg (1 mm Hg=0.133 kPa).The relative clinical testing data were collected. Results 115 patients (10.5％) of the elderly patients were diagnosed as pulmonary hypertension.The prevalence of pulmonary hypertension in patients aged 85-100 years was 16.4％ (82/500),which was higher than in other ages. In the multivariate logistic regression analysis,age (OR=1.085,95％CI=1.025-1.148,P=0.005),left ventricular diastolic dysfunction (OR =3.954,95 ％ CI =1.812-8.627,P=0.001 ),internal diameter of right ventricle (OR=1.271,95％CI=1.112-1.452,P=0.000) and internal diameter of left atrium (OR=1.100,95％CI=1.013-1.194,P=0.023) were risk factors for pulmonary hypertension.ConclusionsThe prevalence of pulmonary hypertension is high in the elderly hospitalized patients,especially those aged 85 years and over,complicated with left ventricular diastolic dysfunction and enlargement of right ventricle and left atrium.
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Objective Although aspirin resistance has been recognized to occur in patients with diabetes mellitus, the prevalence and related risk factors for aspirin resistance in elderly patients with diabetes mellitus have not been reported yet. The purpose of the present study was to evaluate the prevalence and potential risk factors for aspirin resistance in elderly patients with type 2 diabetes.Methods The 140 elderly patients [aged from 60 to 92 years, mean age (73.8±8. 0) years] with type 2 diabetes receiving daily aspirin therapy (≥ 75 mg) over one month were recruited. Platelet aggregation was measured by light transmittance aggregometry (LTA) and thrombelastograph (TEG)platelet mapping assay. Results By LTA, 6 patients (4.3%) of the diabetic patients were found to be resistant to aspirin therapy, 44 patients (31.4 %) were semi-responders. By TEG, 31 patients (22. 1%) were aspirin resistant. Among the 31 patients who were aspirin resistant by TEG, 3 were aspirin resistant by LTA. In the multivariate logistic regression analysis, female gender (OR= 5. 54,95%CI: 1.17-27.47, P=0.036) and homocysteine level (OR=1.15, 95%CI: 1.00-1.35, P=0. 043) were statistically significant risk factors for aspirin resistance by TEG. Conclusions The prevalence of aspirin resistance in elderly patients with type 2 diabetes is considerably higher in elderly female patients and in elderly patients with higher serum homocysteine level.
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Objective The sex hormone and the corresponding receptor may play some roles in the development of the metabolic syndrome (MS) in the elderly men.This study was designed to examine the relationship of level of the sex hormone and androgen receptor with MS in elderly men,thus to investigate the possible pathogenesis of MS.Methods This cross sectional study enrolled 587 elderly men,including 400 healthy controlls aged 62-92 years and 187 MS patients aged 60-87 years in Wan Shou Lu area of Beijing city.Dehydroepiandrosterone sulfate (DHAE-S),total testosterone (TT),sex hormone binding globulin (SHBG),free testosterone (FT),follicle-stimulating hormone (FSH),Estradiol (E2),luteinizing hormone(LH) and androgen receptor (AR) in blood were tested.Statistical analyses included the comparison analysis of variables and independent variables,correlation analysis using multi-factor linear regression,and multiple logistic regression analysis.Results DHAE-S,TT,SHBG,FT and AR fluorescence intensity in healthy control group were higher than those in MS group,however,FSH and E2 levels were lower in healthy group.Age was negatively correlated with diastolic blood pressure (DBP) and FT,but positively correlated with systolic blood pressure (SBP) and E2.AR fluorescence intensity was negatively correlated with SBP and LH.The logistic regression equation showed the negative correlation between DHEA-S,SHBG and the development of MS.Conclusions There are low levels of DHEA-S,TT,SHBG,FT and AR in the elderly patients with MS.On the contrary,FSH and E2 concentration are higher.It can be suggested that low levels of DHEA-S and SHBG may be the potential risk factors of MS in elderly men.
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Objective To investigate the changes of sex hormone and androgen receptor levels and evaluate the relationship of the sex hormones and androgen receptor with coronary heart disease (CHD) in elderly men. Methods A cross-sectional study was performed in 539 elderly men, including 400 healthy people aged 62-92 years and 139 CHD patients aged 60-88 years. The plasma concentrations of total testosterone (TT), free testosterone (FT), dehydroepiandrosterone sulfate (DHEAS), sex hormone binding globulin (SHBG), estradiol (E2), luteinizing hormone (LH) and follicle-stimulating hormone (FSH) were measured. The androgen receptor (AR) level was tested by flow cytometry. Results The fluorescence intensity of DHEAS, TT, SHBG, FT and AR were significantly lower in CHD group than in healthy group (P<0.01);however, FSH and E2 in CHD group were higher(P(0.01). Age was negatively correlated with TT(r=-0.28,P<0.01) and FT (r=-0.17,P<0.05), and positively correlated with SHBG(r=0.14,P<0.05) and E2 (r=0.33, P<0.01). AR fluorescence intensity was negatively correlated with systolic blood pressure (r=-0.12,P<0.01). Logistic regression analysis indicated that TT (OR=1.065,9% CI: 1.012～1.121,P<0.05), SHBG(OR=0.994,95% CI:0.990～0.998,P<0.01) and AR (OR=0.971,95%CI:0.956～0.986, P<0.01)were significantly associated with CHD in elderly male patients. Conclusions The levels of DHEAS, TT, SHBG, FT and AR are lower in elderly men with CHD than in elderly healthy men;however, the FSH and E2 concentrations are higher. Low levels of TT, SHBG and AR may be the independent risk factors for CHD in elderly men.