Objective To investigate the effects of negative pressure wound therapy (NPWT) on the expression of EDA+ FN in granulation tissues of human diabetic foot wounds.Methods Forty patients with diabetic foot wounds fitting the inclusion criteria,admitted from Jan.2014 to Jun.2016,were randomly and equally apportioned to receive either NPWT or conventional gauze therapy (control) for 14 days.Granulated tissue biopsies were collected before (0 day) and after (14 day) treatment in both groups.All biopsies were subdivided into two parts.One part was preserved in 4％ paraformaldehyde for immunocytochemical staining of EDA+FN,and the other part was stored at-80 ℃ for Western blotting and PCR analysis of EDA+FN.Results The immunohistochemical analysis revealed that the mean area density of EDA+ FN increased in both NPWT group and control group at day 14 relative to day 0,but the change value of mean area density was higher in NPWT group than in control group (P＜0.01).Western blotting showed that the relative protein levels of EDA+FN increased in both NPWT group and control group at day 14 relative to day 0,but the change value of relative protein levels of EDA+FN was higher in NPWT group than in control group (P＜0.01).The real time PCR analysis demonstrated that the relative mRNA levels of EDA+ FN increased in both NPWT group and control group at day 14 relative to day 0,but the change value of relative mRNA levels of EDA+ FN was higher in NPWT group than in control group (P＜0.01).The results demonstrated the higher protein and mRNA levels of EDA+FN in NPWT group than that in control group.Conclusion NPWT obviously enhances EDA+FN expression in granulation tissue of diabetic foot wound,as a result promotes wound healing.

Objective To investigate the relationship between Trp64Arg mutation in the β3-adrenergic receptor (β3-AR) gene and the incidence of hypertension in obese subjects. Methods A seven-year follow-up study was conducted in 377 simple obese subjects who had Trp64Arg mutation in the β3-AR gene and some clinical metabolic parameters, such as body mass index, waist circumference, waist-hip ratio, blood pressure, lipid profile, fasting blood glucose, fasting insulin and insulin resistance index (HOMA-IR) were measured in the year of 2000 and 2007. Results The results of follow-up indicated that the incidence of hypertension in Trp64Arg heterozygote subjects were higher than that in Trp64Trp homozygote subjects (52.7% ,69/131 vs 37.0% ,91/246,P < 0.01), the difference was only seen in male (59.5%, 50/84 vs 45.1%, 64/142, P < 0.05). The incidence of hypertension in both Trp64Trp homozygote and Trp64Arg heterozygote subjects were higher in obese male than those in obese female (P < 0.01 or <0.05). After seven years, the blood pressure increased (9.7 ± 4.3)/(5.4 ± 4.0) mm Hg(1 mm Hg = 0.133 kPa) in Trp64Trp homozygote,and (12.8 ± 5.2)/ (7.9 ± 4.7) mm Hg in Trp64Trp heterozygote subjects. Compared with that in Trp64Trp homozygote subjects, lipid profile, fasting insulin and HOMA-IR was increased significantly in Trp64Trp heterezygote subjects (P < 0.05). Logistic analysis showed that β3-AR gene mutation, male, central obesity and insulin resistance were associated with the incidence of hypertension in obese subjects. Conclusion The β3-AR gene Trp64Arg mutation is the independent risk factor in the incidence of hypertension in male.

ObjectiveTo investigate the risk factors of metabolic syndrome ( MS ) in obese subjects.Methods A seven-year follow-up study was conducted in 413 simple obese subjects and 196 subjects with normal body weight who were recruited from community residents during physical examination in 2000.There was a 7 years follow-up.Anthropometrics,blood pressure,lipid profile,fasting blood glucose,and 2 h blood glucose after glucose loading were measured.Endothelium-dependent dilatation (EDD) test was also performed.Results Among 553 of 609 subjects who were followed up in 2007,there were 381 simple obese subjects ( simple obese group) and 172 normal weight subjects( normal weight group).Seven-year cumulative incidence of MS was 35.17％ in simple obese group and 8.14％ in normal weight group.In simple obese group,subjects with MS showed greater or higher levels of waist circumference( WC ),waist-hip ratio ( WHR ),triglyceride ( TG ),fasting plasma glucose ( FPG ),fasting insulin (FINS),and homeostasis model assessment for insulin resistance index (HOMA-IR) (all P＜0.05 ),and also decreased EDD( P＜0.05 ) as compared with those without MS.WC,WHR,and FINS were higher( all P＜0.05 ) and EDD was lower( P＜0.05 ) in subjects with MS of normal weight group than those without MS.Logistic analysis showed that the male gender,WC,WHR,FPG,HOMA-IR,and EDD were major risk factors of MS.Conclusion Central obesity,insulin resistance,and endothelial dysfunction are important independent risk factors for development of MS.

Objective To investigate the relationship between Trp64Arg mutation in β3-adrenerglc receptor (β3-AR) gene and the incidence of metabolic syndrome (MS). Methods A seven-year follow-up study was conducted in 386 simple obese subjects and 175 normal weight subjects in whom geno-typing of Trp64Arg mutation in β3-AR gene was examined in 2000. Results There were no differences between a Trp64Trp homozygote group and a Trp64Arg heterozygote group of whether obese or normal weight subjects with respect to adiposity, blood pressure, lipid profile, fasting blood glucose and fasting insulin in the baseline. The results of follow-up indicated that the incidence of MS in the Trp64Arg heterozygote group was higher than that in the Trp64Trp homozygote group of obese males (54. 76% vs 40. 85% ,P <0. 05) but not in the group of obese females. The incidences of MS both in the Trp64Trp homozygote group and Trp64Arg heterozygote group were higher in obese males than in obese females (40. 85% vs 18. 27% and 54. 76% vs 21.28% ,all P <0. 01 ) . No significant differences were found in incidences of MS both in the Trp64Trp homozygote group and Trp64Arg heterozygote group of normal weight subjects whether the comparison was made between males and females respectively or between males and females. The overall incidence of MS in the obese subjects were significantly increased than that in the normal weight subjects whether there was genevariant or not(31.30% vs 6. 03% and 42. 75% vs 12. 73%, all P <0. 01 ). Logistic analysis showed thatβ3-AR gene variant was associated with increased incidence of MS in males. Conclusion β3-AR gene Trp64Arg mutation is an independent risk factor for the incidence of MS in males.Conclusion β3-AR gene Trp64Arg mutation is an independent risk factor for the incidence of MS in males.

Objective To observe the protein and mRNA expression of LOX-1,eNOS and PPARγ in type 2 diabetic rat aorta,and to investigate the effect of rosiglitazone intervention.Methods Totally 80 Wistar rats (7-week-old male) were randomized into the control group,high fat diet group,diabetic group,and rosiglitazone treatment group (n=20 each).Type 2 diabetes model was developed by intraperitoneal injection with a low dose of streptozotocin,and rats in rosiglization treatment group were treated with rosiglitazone by intragastric administration.After treatment with rosiglitazone for 6 and 12 weeks,animals were sacrificed.Aorta were collected for detecting the protein and mRNA expressions of LOX-1,eNOS and PPARγ,and the differences in expression levels were compared among groups.Results After 6 and 12 weeks,the protein expressions of LOX-1 were up-regulated in diabetic group and rosiglitazone treatment group as compared with control group and high fat diet group (all P＜ 0.01).The protein expression of LOX-1 was down-regulated in rosiglitazone treatment group as compared with diabetic group (P ＜ 0.05).The aorta protein expressions of LOX-1 in high diet group,diabetes group and rosiglitazone treatment group were upregulated after 12 weeks as compared with 6 weeks (all P＜0.01).After 6 and 12 weeks,the aorta protein expressions of eNOS were down-regulated and PPARγ were up-regulated in high fat diet group,diabetic group and rosiglitazone treatment group as compared with control group (all P＜0.01)The aorta protein expression of eNOS was down-regulated and PPARγwas up-regulated in diabetes group as compared with high fat diet group and rosiglitazone treatment group (all P＜0.01).The aorta protein expressions of eNOS in diabetes group and rosiglitazone treatment group were downregulated after 12 weeks as compared with 6 weeks (all P＜0.01).After 6 and 12 weeks,the aorta mRNA expressions of LOX-1 and PPARγ were up-regulated,but the mRNA expressions of eNOS were down-regulated in high fat diet group,diabetes group and rosiglitazone treatment group as compared with control group (all P＜0.05).The aorta mRNA expressions of LOX-1 and PPARγ were up-regulated,but the mRNA expressions of eNOS were down-regulated in diabetes group and rosiglitazone treatment group as compared with high fat diet group (all P＜0.05).The aorta mRNA expressions of LOX-1 and PPARγ were down-regulated,but the mRNA expressions of eNOS were upregulated in rosiglitazone treatment group as compared to diabetic group (all P＜0.01).Conclusions Both hyperglycemia and hyper-lipoproteinemia can induce early coronary atherosclerosis in rats with the abnormal protein and mRNA expressions of LOX-1,eNOS and PPARγ in rat aorta,and the abnormal expressions are more obvious in hyperglycemia combined with hyperlipoproteinemia.Thiazolidinediones can reverse the above abnormal expressions in diabetic rats.

Objective To analyze the epidemiological and clinical characteristics of an outbreak of tsutsugamushi disease in Fuyang City of Anhui Province.Methods Epidemiological information was collected by case investigation questionnaire of tsutsugamushi disease.Diagnosis was determined by the detection of OXK antigen by Weil-Felix test.Results Seventy-eight cases with tsutsugamushi disease were discovered in the outbreak.All the patients had an experience of working in this area before the starting of symptoms.The clinical features of the patients were fever,headache,skin eschar,tetter and lymphadenectasis.No severe complications occurred in each patient.All the patients recovered after getting deoxycycline.Conclusions This was the first report for the tsutsugamushi disease occurred in Fuyang City of Anhui Province.And the declaration for the new happened tsutsugamushi disease would provide strong support evidence for the prevention and control of this event and ensure the safety for working in this area.Also the deoxycycline was very effective for the treatment of tsutsugamushi disease.

Objective To investigate the epidemiological characteristics and factors of hemorrhagic fever with renal syndrome (HFRS) during 1958 to 2007 in Fuyang.Methods Descriptive study method was used to analyze the epidemiological characteristics of hemorrhagic fever with renal syndrome.The incidence peak of hemorrhagic fever with renal syndrome was computed by using rotundity distribution.The correlation was analyzed between incidence and virus index by Pearson correlation.Results 40 002 HFRS cases was reported during 1958 to 2007 in Fuyang and 2381 cases were dead.The average incidence and fatality rate of HFRS were 11.99 per 100 thousand and 5.95 percent respectively.Eight counties all had cases.Yingshang county had the highest cases and Jieshou city had the highest fatality rate.Since 1958,there're 4 incidence peak in Fuyang.The period of high incidence was during November to January of next year and the peak of incidence rate was on December 13.Indoor density and field density of mouse were 9.84 percent and 7.91 percent respectively.Virus rate of indoor and field of mouse were 9.21 percent and 6.99 percent respectively.During 1984 to 2007,the correlation coefficient between virus index and incidence was 0.58.In room brown mouse was the most before 2000,but then house mouse become the most.In open country heavy line Japanese fieldmouse is the most mouse all the time.Conclusions In Fuyang,the focus of HFRS is exist widely.Density and virus rate of mouse will directly affect the incidence.So surveillance among mouse should be strengthened.

BACKGROUND:Compared with bone marrow and autologous peripheral blood stem cells, umbilical cord mesenchymal stem cells are characterized as more primitive, more powerful amplification and lower immunogenicity, no ethical problems, which are more important to the elderly patients with diabetes mel itus. OBJECTIVE:To evaluate the efficacy and safety of umbilical cord mesenchymal stem cells transplantation in the treatment of the elderly patients with diabetic lower limb vascular disease. METHODS:Fifty-six elderly patients with diabetic lower limb vascular disease were randomly divided into observation group and control group. The control group was treated with conventional therapy, while the observation group was treated with umbilical cord mesenchymal stem cells transplantation. RESULTS AND CONCLUSION:Observation group showed a higher efficiency than the control group, with significant difference (P<0.05). After treatment, foot skin temperature, transcutaneous oxygen pressure, and ankle brachial index were al improved in both two groups, and the ankle brachial index showed a better value in the observation group (P<0.05). There were no significant adverse reactions in the two groups. Umbilical cord mesenchymal stem cells transplantation is a simple, safe and effective therapy for the elderly patients with diabetic lower limb vascular disease, with better short-term curative effect.

BACKGROUND: Mesenchymal stem cells in Wharton's Jelly of the human umbilical cord can induce differentiation into islet-like cells.OBJECTIVE: To verify the possibility of human umbilical cord derived mesenchymal stem cells co-cultured with rat pancreatic cells differentiate into islet-like cells, and to observe the effects of transplantation of islet-like cells on blood glucose of diabetic rats.METHODS: Mesenchymal stem cells in Wharton's Jelly of the human umbilical cord was separated, induced, passaged, and co-cultured with pancreatic cells to induce differentiation into islet-like clusters. Rats were divided into the normal control, model and experimental groups. Rats in the model group were prepared for diabetic models, and those in the experimental group were transplanted islet-like cells after model preparation. RESULTS AND CONCLUSION: There were cells crawled out of cultured Wharton's Jelly of the human umbilical cord, and morphology of adhered cells turned into fusiform shape at 7 days. The isolated cells are characterized by expressing specific surface markers of mesenchymal stem cells, such as CD44, CD29, CD105, but not expressing CD34, CD45 or CD14. The cells were strongly stained by PDX-1 and human insulin at 7 and 10 days. Compared with the simple culture group, the expression of human insulin and concentration of C-peptide were obviously increased; PDX-1 and human insulin mRNA expressions were highly expressed at 7 and 10 days after induction. Compared with the model group, the streptozotocin test of rats in the experimental group was obvious decreased (P < 0.01), but extremely higher than that of the normal control group at 1 week after transplantation (P < 0.01). Brdu positive nuclei and insulin positive kytoplasms could be seen in the experimental group at 8 weeks after transplantation. The results demonstrated that, umbilical cord derived mesenchymal stem cells existed in Wharton's Jelly. The co-cultured cells promote mesenchymal stem cells differentiating into islet-like cells, which can dramatically decrease blood glucose in diabetic rats.

Objective To observe the distribution and influence factors of serum high sensitivity C-reactive protein (hs-CRP) in general population. Methods In a cross-sectional population survey, a total of 101 510 subjects who were employed by Kailuan Group had been carried out a healthy examination in the period of 2006 to 2007. In the statistical analysis, we observed 91 123 subjects (males 72 805, females 18 318) who had full information and met the inclusion criteria of the study. Results ( 1 ) The geometric means of hs-CRP were 0. 70 mg/L, 0. 70 mg/L and 0. 73 mg/L in all subjects, males and females,respectively, the 95th percentiles were 6.28 mg/L, 6.20 mg/L and 6.49 mg/L, respectively. The concentrations of hs-CRP increased with age in both males and females (P trend = 0. 001 ). Serum hs-CRP geometric mean was 0. 54 mg/L and the 95th percentile was 5.40 mg/L in health group, while the geometric mean was 0. 80 mg/L and the 95th percentile was 6. 57 mg/L in non-health group. (2) Multiple linear regression analysis showed that concentrations of hs-CRP were positively associated with gender, age,systolic blood pressure, body mass index, total cholesterol, triglycerides, fasting blood glucose, smoking history, history of coronary heart disease and stroke history, but concentrations of hs-CRP were inversely related with diastolic blood pressure, high-density lipoprotein cholesterol and alcohol history. Conclusion Serum concentrations of hs-CRP level increased with age, concentrations of hs-CRP were higher in females than males; a variety of cardiovascular factors effected the concentrations of hs-CRP.