Objective To explore the relationship between serum thyroid-stimulating hormone ( TSH) and dyslipidemia. Methods A total of 1 512 inhabitants in Zhaiji community of Guiyang urban areas were investigated from November 2009 to February 2010 by adopting stratified cluster sampling method, and 1 428 subjects were included in the present study. All subjects were asked to fulfill the questionnaires and to pass a physical examination. The vein blood samples were taken for determination of serum TSH, fasting plasma glucose (FPG), insulin, as well as blood lipid levels. Results Triglyceride ( TG ) , total cholesterol, high density lipoprotein cholesterol, and low density lipoprotein cholesterol levels were significantly increased in woman with subclinical hypothyroidism(SCH) compared to those with euthyroid(all P<0. 05). However, there was no significant difference in man between two groups(P>0. 05). The incidences of hypertriglyceridemia in the euthyroid group from quartile 1 toquartile4ofTSHwere33.3%,35.5%,39.7%,and44.0% respectively(P<0.05). SerumTGlevelwas increased with TSH in woman and total subjects after adjustment for age, sex, body mass index ( BMI) , waist-hip ratio (WHR), and homeostasis model assessment for insulin resistance index(HOMA-IR, P<0. 05). Serum TSH levels in the total sample were positively associated with TG after adjustment for age, sex, BMI, WHR, and HOMA-IR (β=0. 088,P<0. 05). Conclusion Higher serum TSH levels even within normal range seems to be a risk factor of dyslipidemia.

BACKGROUND:Sufentanil exerts protective effects on tissues, but its roles in the repair of nervous system injury and the underlying mechanism are stil unknown.
OBJECTIVE:To explore the protective effect of sufentanil preconditioning in the repair of spinal cord injuries and the underlying mechanism.
METHODS:Mouse models of spinal cord injuries were prepared through clipping spinal cord fol owed by intraperitoneal injection of 3 and 6μg/kg sufentanil, respectively.
RESULTS AND CONCLUISON:(1) Western blotting, ELISA and TUNEL assays showed that 6μg/kg sufentanil significantly down-regulated the protein expression levels of TLR4, nuclear factor-κBp65, cleaved-caspase 3, tumor necrosis factor-αand interlenkin-1βin the spinal cord of mice (P<0.05);at the same time, the number of apoptotic neurons was significantly decreased (P<0.05). (2) Furthermore, high-dose sufentanil preconditioning significantly ameliorated the recovery of limb function at 14 days after injury (P<0.05). (3) These results administrate that the neuroprotection provided by 6μg/kg sufentanil preconditioning for spinal cord injuries in mice maybe related to the TLR4/nuclear factor-κB signaling pathway inactivation.

Objective To explore the association of serum uric acid (UA) with metabolic syndrome (MS) and its components.Methods A total of 1 512 inhabitants aged 20 years old and above in Zhaiji community of Guiyang urban areas were investigated from November 2009 to February 2010 by adopting stratified cluster sampling method (634 males and 878 females).All subjects were asked to fulfill the questionnaires and to measure the height,weight,waist circumstance (WC),and blood pressure ; and to undertake oral glucose tolerance test.Venous blood samples were drawn to measure UA,fasting plasma glucose,2 h postprandial plasma glucose,triglyceride (TG),total cholesterol,high density lipoprotein cholesterol,low density lipoprotein cholesterol,and fasting insulin.Results (1) Age,body mass index (BMI),WC,TG,and blood pressure,and homeostasis model assessment of insulin resistance (HOMA-IR) increased with UA (all P＜0.05).(2) UA was positively associated with the risk of MS (P＜ 0.05).After adjusting for age,sex,BMI,waist-to-hip ratio (WHR),and HOMA-IR,the risk of MS in individuals with the highest uric acid quartiles was significantly increased compared to those with the lowest quartile (OR =2.86,95 ％ CI 1.70-4.84,P＜0.05),and this finding was especially evident in females (OR=2.80,95％ CI 1.51-5.17,P＜0.05).(3) UA was strongly related to WC (OR =1.76,95％ CI0.95-3.27,P＜0.05),blood pressure (OR =1.66,95 ％ CI 1.13-2.43,P＜0.05),and TG (OR =2.80,95％ CI 1.97-3.96,P＜0.05) after adjustment for age,sex,BMI,WHR,and HOMA-IR.Conclusion The prevalence of MS increased with UA.Higher UA level may be an independent risk factor for MS.

A total of 1512 adult inhabitants were randomly recruited in Zhaiji district of Guiyang city in September2009.The levels of triglyceride (TG),systolic blood pressure,diastolic blood pressure,and the prevalences of abdominal obesity and hypertension increased significantly in the subclinical hypothyroidism group conpared to the euthyroid group (P＜0.05).The prevalences of high TG,low high density lipoprotein-cholesterol,and metabolic syndrome (MS) in the subgroup Ⅳ were higher than the subgroup Ⅰ (P＜0.05).Correlation analysis revealed that TSH was positively related to TG (P＜0.05).Logistic regression demonstrated that TSH was a risk factor for MS.Either in the euthyroid or total subjects serum TSH levels in the MS group were significantly higher than those in non-MS group(P＜0.05).

Objective To investigate the molecular mechanism how edaravone reduces cytotoxicity caused by hypoxia/reoxygenation-induced injury.Methods Ischemia model-hypoxia/ reoxygenation model which also called oxygen and glucose deprivation/reoxygenation model (OGD-R) was established.Cells were divided into control group,OGD-R group,OGD-R with edaravone of different concentration groups Cells of OGD-R model were pretreated with the appropriate concentration of edaravone or combine with the specific channel blockers LY294002 and MK2206 individually,the expression levels of ERK,AKT and Bcl-2 were detected with Western-blot,while the expression levels of BDNF and Bcl-2 mRNA detected with RT-PCR,the expression levels of BDNF protein detected with ELISIA,the levels of LDH releasing and Hoechst33258 staining used with homologue assay kit or regents.Results The pretreatment of cultured neurons with edaravone alleviated hypoxia/reoxygenation induced neuronal injury in a dose-dependent manner (LDH releasing reduced,Caspase-3 activity and ratio of nuclear pyknosis declined).The edaravone pretreatment did not increase significantly the p-ERK expression levels,but the amount of p AKT expression was significantly increased(P＜0.01).Pretreatment of edaravone(10 μmol/L) remarkably reduced the LDH release and declined the ratio of nuclear pyknosis after reoxygenation (P＜0.01),which was inhibited by MK2206.Compared to OGD-R,edaravone pretreatment markedly promoted BDNF and Bcl-2 mRNA expression at each time point,and the most pronounced effects occured at 8 h after OGDR.ELISIA analysis showed that BDNF protein level was significantly elevated after edaravone pretreatment at the same point.Western blot analysis indicted that edaravone pretreatment significantly enhanced Bcl-2 protein expression at 8 h after OGD-R,which was blocked by MK2206.Conclusions Edaravone may alleviate hypoxia/reoxygenation induced neuronal injury by enhancing BDNF and Bcl-2 expression and inhibiting Caspase-3 activity through activation of the PI3K/Akt pathway.

_ Objective_ To examine the association between sleep duration, TV watching time, and the incidence of metabolic syndrome in people aged 40 or older in Guiyang city. Methods Data were obtained at the baseline examination ofThe epidemiological study on the risk of cancer in patients with type 2 diabetes in China in 2011. Follow-up study was conducted in 2014 to 2015. A total of 4 392(female 2 987, male 1 405)were included in the analysis. Results According to diagnostic criteria of International Diabetes Federation(IDF)in 2005, 1 035(812 women, 223 men) of the cohort developed metabolic syndrome during an average follow up for 3 years. Sleep duration was classified as≤7 h/d, 7-9 h/d,≥9 h/d, the incidence of metabolic syndrome was 24. 46%, 22. 43%, 23. 65%, respectively. TV watching time was divided into 0-1 h/d, 1. 1-2 h/d, 2. 1-4 h/d,>4 h/d, the incidence rates were 20. 67%, 22. 91%, 24. 61%, 25. 76%, respectively. In multivariate logistics regression analysis, compared with 0-1 h/d, the RR values of women with TV watching time during 1. 1-2 h/d, 2. 1-4 h/d,>4 h/d were 1. 098(95%CI 0. 789-1. 528), 141. 6(95% CI 1. 052-1. 906), 1. 559(95% CI 1. 090-2. 233), respectively. Conclusion The standardized incidence rate of metabolic syndrome in the general population was 23. 12%, the crude rate was 23. 57%. The incidence of metabolic syndrome was unrelated to the sleep duration and TV watching time as a whole or in men. TV watching time more than 2 hours a day may increase the risk of the metabolic syndrome in women.

Objective To explore the relationship between metabolic syndrome(MS) and glomerular filtration rate(GFR).Methods A total of 10 140 adults aged 40 years and older inhabitants in Zhaiji community of Guiyang urban areas were investigated from May 2010 to August 2010 by adopting stratified cluster sampling method.The venous blood sample was drawn for the measurements of serum creatinine(Cr), fasting plasma glucose(FPG), OGTT 2hPG, fasting insulin, triglyceride(TG), total cholesterol(TC), high-density lipoprotein-cholesterol(HDL-C), low-density lipoprotein-cholesterol(LDL-C), and fasting plasma insulin.The definition of MS in our study was modeled after the Adult Treatment Panel Ⅲ(ATP-Ⅲ).Decreased GFR was defined as an estimated GFR<60 ml·min-1·(1.73 m2)-1.Results The prevalence of GFR less than 60 ml·min-1·(1.73 m2)-1 were 3.0% and 1.2% in participants with and without MS, respectively.The multivariate-adjusted odds ratios[95% confidence interval(CI)] of MS, which were independently associated with decreased GFR, were with elevated blood pressure, higher TG, lower HDL-C, and elevated FPG, their statistically odds ratios were 1.78, 2.96, 1.06, and 1.22, respectively.The prevalence of GFR decreased with the increase of MS components by 0.56%, 1.10%, 1.50%, 2.87%, 3.23%, and the odds ratios were 1.00, 1.57, 1.93, 3.07, and 2.89, respectively.Conclusion With the increase of MS components the risk of GFR decline increased.The occurrence of chronic renal dysfunction(CKD) might integrate multiple different risk factors of MS.

Objective To investigate the change of prevalence of autoimmune thyroiditis in Guiyang city after adjustment of salt iodine content, and to study the link between the level of iodine intake and the development of autoimmune thyroiditis. Methods With cluster sampling method, a cross-sectional study was conducted among adults aged 20 years old or above in Guiyang in 2009 (before adjustment, n=1 509) and 2015 (after adjustment, n=1 368). After an overnight fasting, thyroid stimulating hormone (TSH), thyroid peroxidase antibody (TPOAb), and thyroglobulin antibody (TgAb) were measured. The serum FT4 and FT3 were determined for the subjects with abnormal TSH. Meanwhile, urine iodine levels of children aged 8-10 years old in the same community were measured after an overnight fasting in these two studies. Results In 2009, the median level of 8-10 years old children′s urinary iodine was 228.7 μg/L. The prevalence of positive TPOAb, positive TgAb, and thyroid autoantibodies (TAAs) were 14.38%, 13.59%, 18.89%, the standardized prevalence were 14.35%, 13.59%, 18.89% respectively. The prevalence of subclinical hypothyroidism, autoimmune thyroiditis were 14.12% and 4.44%, with the standardized prevalence were 14.12%, 4.42% respectively. In 2015, the median urinary iodine level of 8-10 years old children was 190.1 μg/L, the prevalence of positive TPOAb, positive TgAb, and TAAs were 8.77%, 7.82%, 11.77%, the standardized prevalence were 8.98%, 7.97%, 12.13% respectively; the prevalence of subclinical hypothyroidism, autoimmune thyroiditis were 22.89%, 2.92%, with the standardized prevalences of 23.19%, 3.02% respectively. Conclusion After adjustment of salt iodine content, the iodine nutrition in Guiyang is at the appropriate level, and the values of TPOAb, TgAb, TAA, and autoimmune thyroiditis in adults of Guiyang city were all decreased.

Objective To investigate the relationship between changes of ankle brachial index (ABI) and adverse cardiovascular events. Methods Baseline survey was conducted in 4 160 forty-year-old or older citizens living in Yunyan District of Guiyang City from May to August of 2011, which was in the way of cluster sampling to obtain their ABI and to collect information related to physical and blood biochemical examination and disease history. These citizens were conducted a follow-up survey for (39.29±1.47) months from July to December of 2014. Based on the change of ABI (ΔABI) from initial survey to follow-up survey, participants were subsequently divided into three groups: ΔABI>0.15 group,-0.15≤ΔABI≤0.15 group and ΔABI<-0.15 group. The adverse cardiovascular events during follow-up survey were compared between three groups. The risk factors affecting the adverse cardiovascular events were analyzed. Results Follow-up surveys were completed in 3 220 citizens in 3 years. The follow-up rate was 77.4%. Eighty-two new cases (2.5%) of adverse cardiovascular events were found in 3 220 cases in follow-up. The incidence rates of adverse cardiovascular events were higher inΔABI<-0.15 group compared with those of-0.15≤ΔABI≤0.15 group (8.3%vs. 2.4%, P<0.016 7). Logistic regression analysis indicated that age, hypertension history, and ΔABI<-0.15 were risk factors for adverse cardiovascular events. Exercise was the protective factor for adverse cardiovascular events. Conclusion Subjects withΔABI<-0.15 are at high risk for adverse cardiovascular events. The ΔABI can be used as a means of monitoring of adverse cardiovascular event, which provides certain forecast value for determining the possibility of adverse cardiovascular event.

Objective To investigate the relationship between brachial ankle pulse wave velocity and the incidence of cardio-cerebral events in people aged over 40. Methods Cluster sampling method was used to prospectively study 4 380 residents aged over 40 in Guiyang City District from May to August in 2011. Data of ba-PWV were collected. The follow-up examination was conducted from July to November of 2014. According to ba-PWV values, participants were divided into three groups:<14 m/s (control, n=1 039) group, 14-17.9 m/s group (n=1 393) and≥18 m/s group (n=809). Multi-factor Logistic regression model was used to analyze the relationship between ba-PWV values and risk factors of cardio-cerebral events. Results After three-year follow-up, a total of 3 241 participants were included in the final analysis. The cardio-cerebral events were identified in 63 (2.0%) cases, which were 0.6%, 2.2%and 3.2%in control group, 14-17.9 m/s group and≥18 m/s group. The value of ba-PWV increased significantly in those two groups compared with that of normal group. Logistic regression analysis showed that the incidence rates of cardiovascular and cerebralvascular events in 14-17.9 m/s group and≥18 m/s group were 2.777 (1.123-6.864) and 2.786 (1.032-7.526) times of control group after adjusting age, gender, systolic blood pressure, risk factors of diabetes, hypertension and blood lipids. Conclusion There is higher incidence rate of cardio-cerebral events in people aged over 40 in higher ba-PWV group. The value of Ba-PWV can be used to predict the occurrence of cardio-cerebral events.