Objective: To explore the mediating effect of hemoglobin (Hb) and hematocrit (HCT) on the association between alcohol consumption and blood pressure, and provide evidence for the prevention and control of alcohol-attributed hypertension. Methods: 1 091 male (age >50 years old) participants with drinking habit were selected from the Guangzhou biobank cohort study (GBCS). Mediation analysis was used to evaluate the mediating effect of Hb and HCT on the association of alcohol consumption (unit/day) with systolic blood pressure (SBP), diastolic blood pressure(DBP), pulse pressure(PP) and mean arterial pressure (MAP). Results: After adjusting for age, body mass index, education level, personal annual income, smoking, occupation and physical activity, the associations of alcohol consumption with SBP, DBP, PP and MAP were partly mediated by Hb, the proportion of mediating effect was 11.8% (95%CI 4.8%-24.7%), 15.3% (95%CI 6.5%-32.0%), 8.4% (95%CI 2.2%-22.5%) and 13.5% (95%CI 5.9%-27.5%), respectively. The associations of alcohol consumption with SBP, DBP, and MAP were also partly mediated by HCT, the proportion of mediating effect was 6.3% (95%CI 1.0%-16.0%), 8.7% (95%CI 1.4%-21.4%), and 7.5% (95%CI 1.0%-18.6%), respectively. Conclusion There is a significant mediating effect of Hb and HCT on the association between alcohol consumption and blood pressure. Besides efforts on alcohol control, the potential effects of alcohol-induced increase on Hb and HCT, which might also increase the blood pressure, need to be considered to achieve optimal monitoring and prevention of alcohol-related hypertension.

Objective To examine the association of fasting plasma glucose (FPG) and serum uric acid (SUA) in middle and elderly Chinese. Methods 10 413 Guangzhou residents aged ≥50 were included in the present study. Information on personal history,physical examination and biochemical parameters were collected. Subjects were grouped by the FPG level,association between FPG and SUA. Levels of hyperuricemia(HUA)were evaluated. Results The SUA levels and the incidence of HUA showed trends of increasing,with the increasing FPG levels in women,with statistically significant differences seen among all the FPG groups(P value for trend<0.05). While the statistical differences of SUA levels and the incidence rates of HUA among diabetes group(DM group)and impaired fasting glucose(IFG)groups were non-significant(P>0.05)but it was higher than normal FPG group in men (P<0.05). Logistic regression models were built between various FPG groups and HUA. After adjusting for age,smoking status,drinking status,physical activity, hypertension,body mass index and the levels of triglyceride and creatin. When compared to the normal FPG group,the risk of women suffering from HUA increased by 40%(95%CI:1.19-1.64) under the FPG in the range of 6.1-6.9 mmol/L. Compared to those non-diabetic individuals,the risk of diabetic patients suffering from HUA also increased by 44%(95%CI:1.15-1.79) in women. However,the risk of suffering from HUA did not relate to the increase of FPG in men. Conclusion The SUA level and the incidence of HUA tended to increase along with the increasing levels of FPG in middle and elderly Chinese women and the increase of FPG might also increase the risk of HUA,but not in men.

Objective To examine the association between weight changes during early and middle adulthood and the risk of type 2 diabetes mellitus in middle aged and elderly population.Methods Based on the Guangzhou Biobank Cohort Study (GBCS),28 736 residents aged ≥50 years were included in Guangzhou.Multivariate logistic regression was used to analyze the association between body weight changes during early or middle adulthood and age when the heaviest weight reaching the threshold on the risk of type 2 diabetes mellitus in middle age or elderly population.Adjustments on age,smoking,alcohol consumption,physical activity,education level,occupation,district of residence and body mass index etc.,were made.Results The mean age was 64.3 (standard deviation=6.7) years in men and 61.0 (standard deviation=7.0) years in women,with the prevalence rates of diabetes as 13.1％ and 13.7％ in men and women,respectively.Compared to those with stable body weight,the risk of diabetes increased with weight gain during early and middle adulthood in both men and women (both P values for trend ＜0.01).Participants who gained more than 20 kg during early and middle adulthood were associated with the highest risk of diabetes in men (OR=2.83,95％ CI:1.99-4.02) and women (OR=3.13,95％CI:2.47-3.96).Compared to those who reached the highest weight at age 20,those who reaching the highest weight at 40 to 49 years were associated with the highest risk of diabetes,with OR being 5.32 (95％CI:1.92-14.8) in men and 3.41 (95％CI:2.49-4.67) in women,respectively.Weight loss in adulthood was associated with self-reported but not newly diagnosed diabetic cases in both middle and older aged men and women.Conclusion Weight gain during early and middle adulthood may increase the risk of diabetes in middle and older aged population.The detrimental effect of obesity on diabetes might become significantly visible in the next decades.

Objective: This study’s objective is to assess the efficacy and safety of Pulsed Magnetic Therapy System (PMTS) in improving insomnia disorder. Methods: Participants with insomnia disorder were randomly assigned to receive either PMTS or sham treatment for four weeks (n= 153; PMTS: 76, sham: 77). Primary outcomes are the Insomnia Severity Index (ISI) scores at week 0 (baseline), 1, 2, 3, 4 (treatment), and 5 (follow-up). Secondary outcomes are the Pittsburgh Sleep Quality Index at baseline and week 4, and weekly sleep diary-derived values for sleep latency, sleep efficiency, real sleep time, waking after sleep onset, and sleep duration. Results: The ISI scores of the PMTS group and the sham group were 7.13±0.50, 11.07±0.51 at week 4, respectively. There was a significant group×time interaction for ISI (F3.214, 485.271=24.25, p<0.001, ηp 2=0.138). Only the PMTS group experienced continuous improvement throughout the study; in contrast, the sham group only experienced a modest improvement after the first week of therapy. At the end of the treatment and one week after it, the response of the PMTS group were 69.7% (95% confidence interval [CI]: 58.6%–79.0%), 75.0% (95% CI: 64.1%–83.4%), respectively, which were higher than the response of the sham group (p<0.001). For each of the secondary outcomes, similar group×time interactions were discovered. The effects of the treatment persisted for at least a week. Conclusion PMTS is safe and effective in improving insomnia disorders.

OBJECTIVETo examine the association of fasting plasma glucose (FPG) and serum uric acid (SUA) in middle and elderly Chinese.

METHODS10 413 Guangzhou residents aged ≥50 were included in the present study. Information on personal history, physical examination and biochemical parameters were collected. Subjects were grouped by the FPG level, association between FPG and SUA. Levels of hyperuricemia (HUA) were evaluated.

RESULTSThe SUA levels and the incidence of HUA showed trends of increasing, with the increasing FPG levels in women, with statistically significant differences seen among all the FPG groups (P value for trend<0.05). While the statistical differences of SUA levels and the incidence rates of HUA among diabetes group (DM group) and impaired fasting glucose (IFG) groups were non-significant (P > 0.05) but it was higher than normal FPG group in men (P < 0.05). Logistic regression models were built between various FPG groups and HUA. After adjusting for age, smoking status, drinking status, physical activity, hypertension, body mass index and the levels of triglyceride and creatin. When compared to the normal FPG group, the risk of women suffering from HUA increased by 40% (95%CI:1.19-1.64) under the FPG in the range of 6.1-6.9 mmol/L. Compared to those non-diabetic individuals, the risk of diabetic patients suffering from HUA also increased by 44% (95% CI:1.15-1.79) in women. However, the risk of suffering from HUA did not relate to the increase of FPG in men.

CONCLUSIONThe SUA level and the incidence of HUA tended to increase along with the increasing levels of FPG in middle and elderly Chinese women and the increase of FPG might also increase the risk of HUA, but not in men.

Aged ; Asian Continental Ancestry Group ; Blood Glucose ; China ; epidemiology ; Diabetes Mellitus ; epidemiology ; Fasting ; blood ; Female ; Humans ; Hyperuricemia ; epidemiology ; Incidence ; Male ; Middle Aged ; Prediabetic State ; epidemiology ; Risk Factors ; Sex Distribution ; Uric Acid ; blood