Adolescent ; Adult ; Dimethylformamide ; adverse effects ; Female ; Humans ; Kidney ; drug effects ; physiopathology ; Lipid Metabolism ; drug effects ; Liver ; drug effects ; physiopathology ; Male ; Middle Aged ; Occupational Exposure ; adverse effects ; Young Adult

Aged ; Animals ; Diabetes Complications ; Diagnosis, Differential ; Female ; Humans ; Ophthalmoplegia ; diagnosis ; etiology ; Tolosa-Hunt Syndrome ; diagnosis

Objective To analyze the risk factors for postoperative stricture after endoscopic submucosal dissection (ESD) for early stage esophageal cancer.Methods The data of 362 patients with early esophageal cancer treated by ESD from January 2007 to February 2012 were reviewed to investigate the risk factors of postoperative stricture.Results Esophageal stricture after ESD occurred in 42 patients (11.6％)with a mean time from ESD to stricture of (58.5 ± 12.3) days.The rates of mild,median and severe stricture were 16.7％ (7/42),38.1％ (16/42) and 45.2％ (19/42),respectively.Multivariate analysis revealed that lesion range ＞ 3/4 esophageal circumference (odds ration [OR]:44.2 ; 95％ confidence interval [CI]:4.4-443.6) and tumor invasion beyond m2 (OR:14.2; 95 ％ CI:2.7-74.2) were independent risk factors.Stricture level was related to lesion's circumferential extension (relational coefficient (φ) =0.47,P ＜ 0.05) and tumor invasion depth (relational coefficient (φ) =0.647,P ＜ 0.05).Conclusion Circumferential extension and invasion depth of early esophageal cancer were independent risk factors for post-ESD esophageal stricture and related with the degree of stricture.

ObjectiveTo investigate the prevalence and distribution characteristics of dental fluorosis of children aged 8 - 12 in Wushan and Fengjie counties of Chongqing and to provide a scientific basis for prevention and control of the disease.MethodsTwenty townships(towns) in Fengjie county and 18 in Wushan county were selected as survey points by random cluster sampling in 2010.Dental fluorosis of all the children aged 8 - 12 was examined with Dean index.The detection rate of children's dental fluorosis,defect rate and dental fluorosis index were compared between the two counties.Results Totally 38 209 children aged 8 - 12 were investigated.The total detection rate of dental fluorosis was 43.09％( 16 466/38 209) in the two counties.The detection rates of dental fluorosis in Wushan and Fengjie were 48.98％ (9397/19 186)and 37.16％(7069/19 023),respectively,and the difference was statistically significant(x2 =544.03,P ＜ 0.01 ).Total detection rates of dental fluorosis of the five age groups(8,9,10,11,and 12-year-old age groups) were 32.52％(2157/6632),40.07％(2672/6668),43.67％(3420/7831 ),46.01％ (3861/8391) and 50.14％ (4356/8687),respectively,and the difference was statistically significant (x2 =510.50,P ＜ 0.01),Dental fluorosis indexes in Wushan and Fengjie were 0.713 and 0.485,respectively.Defect rates of dental fluorosis in Wushan and Fengjie were 4.05％ (777/19 186) and 1.57％(298/19 023),respectively.Conclusions The total detection rate of dental fluorosis of the two counties is still high,which gradually increases with age.Wushan is still an endemic area of dental fluorosis,and Fengjie is at the edge of the

Adolescent ; Antibodies, Viral ; Child ; Diagnosis, Differential ; Female ; Fever ; Humans ; Infant ; Male ; SARS Virus ; immunology ; Severe Acute Respiratory Syndrome ; diagnosis ; virology

Objective To investigate the effects of mesenchymal stem cells (MSCs) transplantation combining with vascular endothelial growth factor (VEGF) gene therapy on myocardium rebuilding,angiogene- sis,and heart function improvement in rats with myocardial infarction.Methods SD rat MSCs were isola- ted,cultured in vitro,labeled with BrdU and transfected by Ad.VEGF gene.Four weeks after left anterior descending artery was ligated to created rat myocardial infarction,cardiac function was examined with echocar- diography,rats were randomly divided into four groups (n=10 in each group):GroupⅠ:MSCs/Ad.VEGF implantation;GroupⅡ:MSCs implantation;GroupⅢ:Ad.VEGF injection;GroupⅣ:Control.MSCs dif- ferentiation was observed 4 weeks after transplantation.Immunohistochemistry and angiogenesis were observed. Echocardiography was performed to detect the effects on heart function.Results MSCs labeled with BrdU could be identified in host hearts in groupⅠandⅡ,most of them positively stained with cTnT antibody. Echocardiography indicated that the improvement of the LVEF value in groupⅠwas more significant than that in the other three groups (P＜0.01,respectively).Some cells were incorporated into the coronary capillaries in the infarcted region.The capillary density in groupⅠwas higher than that in the other three groups (P＜0.01,respectively).Conclusion MSCs implantation combining with VEGF gene therapy can obviously re- pair damaged myocardium and enhance the angiogenesis in ischemic heart tissue.

OBJECTIVETo study a new and practical method to prevent the superficial bladder tumor recurrence after transurethral resection of bladder tumor (TUR-Bt).

METHODSWe had chosen 68 patients with superficial bladder tumor randomly. After TUR-Bt, we inserted special stainless steel injection needle through the operation hole, and then injected anti-tumor drugs (pirarubicin) submucously; in the control group, 74 patients were given traditional perfusion therapy for carcinoma in bladder with the same anti-tumor drug (pirarubicin) after TUR-Bt. The effects were evaluated according to recurrence ratio.

RESULTSThe recurrence rate of injection group was 11.8% (8/68), and that of the control group was 29.7% (22/74). There is a very significant difference between the two groups (chi(2) = 0.013, P < 0.01). The overall median recurrence interval period of injection group was obviously longer than that of the control group, but there was no significant difference about single and multiple occurrences between the two groups (chi(2) = 0.719, P > 0.05).

CONCLUSIONSThe injection method used to prevent tumor recurrence after TUR-Bt has the following virtues: simple and safe, less side effect, more economical. We demonstrated that submucosal injection is a practical method to prevent tumor recurrence and is worth popularizing.

Aged ; Antineoplastic Combined Chemotherapy Protocols ; therapeutic use ; Carcinoma, Transitional Cell ; drug therapy ; surgery ; therapy ; Combined Modality Therapy ; Cystectomy ; methods ; Electrosurgery ; Female ; Follow-Up Studies ; Humans ; Injections, Intralesional ; Male ; Middle Aged ; Neoplasm Recurrence, Local ; prevention & control ; Urinary Bladder Neoplasms ; drug therapy ; surgery ; therapy

Objective To explore the risk factors of coal-burning-borne endemic fluorosis (endemic fluorosis) and to provide a scientific basis for making prevention and control strategy.Methods One hundred children with dental fluorosis and 30 adults with skeletal fluorosis who lived in Wushan county and Fengjie county,the endemic fluorosis regions northeast of Chongqing were randomly selected as the case group in 2010.One hundred healthy children and 30 healthy adults were selected from the population where the cases were selected from as the control group and 30 healthy external adults control were selected from Yubei district,a non-endemic fluorosis area.Fasting venous blood was draw from all subjects and the content of zinc (Zn),copper(Cu),calcium (Ca),magnesium(Mg),and ferrum(Fe) in venous blood was measured by atomic spectrophotometric.Instant urine was collected from all subjects and urinary fluorine was measured by fluorine selective electrode.We also did questionnaire survey to 100 dental fluorosis children and 100 control children about their situation of fluorine pollution and knowledge related to endemic fluorosis.Results Children's blood Zn of the ease group[(70.88 ±9.28) μmol/L] was lower than that of the control group [(75.53 ± 10.78)μmol/L],and the difference was statistically significant(P ＜ 0.05).But the average blood Cu content[(30.28 ± 2.58)μ mol/L] and the average urinary fluorine of the case group [(0.74 ± 0.36)mg/L] were significantly higher than that [Cu (28.45 ± 4.05)μmol/L and urinary fluorine (0.48 ± 0.21)mg/L] of the control group in children,respectively,and the differences was statistically significant(P ＜ 0.05).The average blood Zn content of adults in the case group[(91.13 ± 10.29)μ mol/L] was lower than that of the control group[(99.57 ± 11.73)μmol/L],and the difference was statistically significant (P ＜ 0.05).The average content of Mg[(1.57 ± 0.19)mmol/L],Fe[(8.17 ± 1.01) mmol/L] and urinary fluorine[(2.37 ± 1.01)mg/L] in the case group were higher than that [Mg(1.46 ± 0.16) mmol/L,Fe(7.72 ± 0.96) mmol/L and urinary fluorine(0.92 ± 0.85)mg/L] of the control group,respectively,and the differences were statistically significant(P ＜0.05).In the questionnaire survey,we found that the following were important related factors (OR values were 2.7335,0.3339,2.8428,0.4633,0.5439,0.4009,0.4805 and 0.3994,P ＜ 0.05) between the case group and the control group:using local coal for heating,furnaces and stoves improvement,eating local coal fire baked food,knowing the harm of endemic fluorosis to the health of human body,knowing endemic fluorosis can be prevented,knowing consuming baked food can cause endemic fluorosis,knowing drinking milk can prevent endemic fluorosis and having the habit of eating calcium tablets.Conclusions In addition to the main pathogenic element of fluorine,body Zn content is closely related to the process of coal-burning-borne endemic fluorosis in the two counties,fluorosis patients have lower blood Zn levels,Zn deficiency is an auxiliary factor in the etiology of fluorosis.Reduce the use of local coal for heating,do not consume the baked food,improve stoves,learn more knowledge about endemic fluorosis and ingest anti-fluoride elements can reduce the risk of endemic fluorosis.

OBJECTIVE: To explore the variations of early-phase insulin secretion in Type 2 diabetic patients in different stages. METHODS: L-arginine stimulative test, fast blood glucose and body mass index (BMI) were evaluated in 40 nomal controls (NC) and 101 Type 2 diabetic patients. The diabetic patients were divided into three groups: newly diagnosed group (n = 35), effectively treated by sulfonylureas group (n = 32) , and secondary failure of sulfonylureas group (n = 34). The indexs of insulin resistance of homeostasis model assessment (HOMA-IR), beta-cell insulin secretion of homeostasis model assessment (HOMA-IS), and the acute insulin response (AIRARG) index were calculated. Some statistical comparisons were done among the 4 groups. RESULTS: The indexs of HOMA-IR in each group of Type 2 diabetic patients were all higher than those in NC group (P < 0.01). The AIRARG indexs were obviously lower in Type 2 diabetic patients in different stages than those in NC group (P < 0.01), and the subsequence from the highest to the lowest among the groups of diabetic patients was: the newly diagnosed group, the effectively treated by sulfonylureas group, and the secondary failure of sulfonylureas group (P < 0.01). But there was no significant difference in indexs of HOMA-IS between the newly diagnosed group and the effectively treated by sulfonylureas group. CONCLUSION There is severe insulin resistance in Type 2 diabetic patients in each stage. The variations of early-phase insulin secretion manifest a vary procedure of obvious deterioration by degrees from the newly diagnosed group to the secondary failure of sulfonylureas group in Type 2 diabetic patients.
Adult ; Diabetes Mellitus, Type 2 ; drug therapy ; metabolism ; Female ; Humans ; Insulin ; metabolism ; Insulin Resistance ; Insulin Secretion ; Insulin-Secreting Cells ; metabolism ; Male ; Middle Aged ; Sulfonylurea Compounds ; therapeutic use ; Time Factors

This study was purposed to investigate the vWF gene A1381T polymorphism in patients with coronary heart disease (CHD). A case-control study was designed, including 104 continuously hospitalized patients with CHD, aging from 40 to 75 years (average 59) and 96 persons underwent physical examination in outpatient department as controls, aging from 39 to 70 years (average 56). The plasma vWF: Ag level of CHD patients and control persons was detected by ILISA. vWF gene A1381T polymorphism was analyzed by the polymerase chain reaction-restriction fragment length polymorphism and sequencing when it is necessary. The data were grouped by gender, blood group and/or genotype in CHD group and control groups. The difference of plasma vWF level between male and female was analyzed by independent sample t test; one way ANOVA was used to analyze the difference of vWF level between different blood group genotypes, while the factorial design ANOVA was used to test the difference of vWF level in plasma between A1381T genotype and/or ABO blood groups. χ(2) Crosstabs were used to test the CHD susceptibility. The results showed that the frequencies of GG genotype (wild type) of vWF gene A1381T polymorphism were 62.5% in CHD group and 67.7% in control group, and the frequencies of AG genotype (heterozygous variant) were 37.5% in CHD group and 32.3% in control group. χ(2) Crosstabs showed no significant correlation between vWF gene A1381T polymorphism (AG) and CHD (OR = 1.258, 95% CI = 0.702 - 2.255, χ(2) = 0.595, p = 0.440). The plasma vWF level in CHD group was statistically very higher than that in control group (p < 0.001), even though the relationship of vWF A1381T polymorphism (rs216311) and susceptibility of CHD in CHD group was not found. The plasma vWF level of AG or GG genotype was higher in CHD group than in control group (p < 0.001). The plasma vWF level of AG genotype was higher than that of GG in CHD group (p < 0.05), but not in control group. The plasma vWF of O blood group was lower than that of A, B and AB blood groups (p < 0.05), while among A, B, AB blood groups, the vWF level was not different (p > 0.05). Among O, A, B, AB blood groups in CHD group, vWF level was not different (p > 0.05). Although the two-way analysis of variance ANOVA showed no interaction of A1381T genotype and ABO blood groups on plasma vWF level, the plasma vWF level in AG mutant of vWF A1381T gene polymorphism with O blood group was higher than that of GG mutant (p = 0.023) in CHD group, not different in other blood groups. It is concluded that there is no association between vWF gene A1381T polymorphism and CHD susceptibility. The plasma vWF level in CHD group interrelated with ABO blood group and A1381T polymorphism, in which the plasma vWF level in AG genotype increase mostly. Plasma vWF level in vWF gene A1381T polymorphism with AG mutant was significantly much higher than GG mutant in CHD. This change may be beneficial to further study the effect of A1381T polymorphism on vWF gene expression and activity.
ABO Blood-Group System ; Adult ; Aged ; Case-Control Studies ; Coronary Disease ; genetics ; Female ; Genotype ; Humans ; Male ; Middle Aged ; Polymorphism, Genetic ; von Willebrand Factor ; genetics