This article is to provide a general overview of cancer in China including the statistics, most common cancers, their epidemiological characteristics and the treatments.

Humans ; Platelet Aggregation Inhibitors ; therapeutic use ; Polymorphism, Genetic ; Thrombosis ; genetics ; therapy

OBJECTIVETo investigate the association between the polymorphisms and haplotypes of prostacyclin synthase gene with MI in Uigur patients in Xinjiang.

METHODS210 patients with MI and 206 healthy control subjects were genotyped for 3 SNPs of the human prostacyclin synthase gene by polymerase chain reaction and restriction fragment length polymorphism.

RESULTSThe genotype distributions of the control group and MI group were in the Hardy-Weinberg equilibrium (both P > 0.05). The frequency of CC of rs5629 in MI group was significantly higher than that in controls (71.42% vs. 61.65%, P = 0.035). The frequency of A-C-T haplotype was significantly higher in the control group than that in the MI patients (4.01% vs. 0.60%, P = 0.001). The frequency of C-T-T haplotype was significantly higher in the MI patients than that in the controls (7.40% vs. 3.31%, P = 0.011). Logistic regression analysis showed that, after adjusting hypertension, hyperlipemia and smoking, the CC genotype of rs5629 (P = 0.021, OR = 1.665, 95%CI: 1.024 - 2.156) and the C-T-T haplotype (P = 0.011, OR = 1.876, 95%CI: 1.410 - 3.171) was the independent risk factors for MI.

CONCLUSIONThe CC genotype of rs5629 and the C-T-T haplotype of prostacyclin synthase gene are associated with MI but the A-C-T haplotype of prostacyclin synthase gene might be a protective factor of MI in Uigur population of Xinjiang.

Aged ; Asian Continental Ancestry Group ; genetics ; Cytochrome P-450 Enzyme System ; genetics ; Female ; Gene Frequency ; Genotype ; Haplotypes ; Humans ; Intramolecular Oxidoreductases ; genetics ; Male ; Middle Aged ; Myocardial Infarction ; ethnology ; genetics ; Polymorphism, Single Nucleotide

OBJECTIVEThe present study describes an improved in vitro culture method for obtaining high purity, vital and fully functional cardiomyocytes from neonatal rat.

METHODSAfter cutting ventricular tissue with improved method, ventricular tissues were digested with low concentrations of trypsin overnight at 4 °C, and then underwent collagenase II digestion. Thereafter, cardiomyocytes were purified by combined differential adhesion and chemical inhibition methods.

RESULTSAdherent cardiomyocytes were seen at 12 h after culture, spontaneously beating cardiomyocytes were observed at 24 h after culture, crosslinked cardiomyocytes were found at 48 h after culture, adhesion clustered cardiomyocytes were seen at 72 h after culture, dense network formed from inter-connected was evidenced together with radial arranged cell clusters and cell pseudopodia 96 h the mutual contact woven into and formed radically ordering cell clusters and island-like beating cardiomyocytes at 96 h after culture. The cell survival rate and purity were more than 98%.

CONCLUSIONFully functional spontaneous beating cardiomyocytes can be obtained by the use of this improved primary neonatal rat cardiomyocytes culture method.

Animals ; Animals, Newborn ; Cells, Cultured ; Myocytes, Cardiac ; cytology ; Primary Cell Culture ; methods ; Rats ; Rats, Sprague-Dawley

OBJECTIVETo investigate the prevalence and distribution of chronic heart failure (CHF) in the aged population of Xinjiang.

METHODSFour-stage random sampling method was employed in this cross-sectional study to analyze the prevalence, risk factors and combined cardiovascular diseases of heart failure among different ethnic groups in aged (≥60 years and over) population of Xinjiang. Sample of studied population was recruited from 6 different regions in Xinjiang, namely Urumqi, Karamay, Fukang, Turfan Basin, Hetian and Ili Kazakh Autonomous Prefectures.

RESULTS3 858 participants were surveyed, with the response rate as 89.14% . The prevalence of CHF was 4.30% in this cohort, including 2.74% in Han, 5.25% in Uighur and 6.32% in Kazakh ethnic groups respectively. The prevalence rates of CHF in different ethnic groups were significant different, statistically (χ(2) = 22.62, P = 0.00). Prevalence in males was 5.50%, predominant in the CHF, with females as 3.13%, and the difference between genders was significant (χ(2) = 13.65, P = 0.00). The prevalence rates of CHF increased in proportion with aging and were 3.39%, 3.68%, 5.12% and 6.82% in the 60-64, 65-69, 70-74, 75 years and over age groups, respectively. The prevalence rates of different age groups showed significant differences (χ(2) = 13.29, P = 0.004), and increased with age. The prevalence of CHF presented a rising trend (χ(2) = 12.07, P = 0.001).

RESULTSof this study showed that atrial fibrillation was an independent risk factor for CHF (OR = 5.20, 95%CI: 2.32-11.70 and OR = 5.54, 95% CI:3.83-8.02). The most common combined single cardiovascular disease appeared to be hypertension(50 cases, the constituent ratio was 30.12%), followed by coronary heart disease (12 cases, 7.23%).

CONCLUSIONThe prevalence of heart failure in population over 60 years was high in Xinjiang, and there showed ethnic differences. Hypertension and coronary heart disease were the basic cardiovascular diseases combined with heart failure in the various ethnic groups in Xinjiang. To strengthen epidemiological study on those high risk populations related to chronic heart failure was important on the strategies of prevention and treatment to this health problem.

OBJECTIVEThe aim of the present study was to assess the association between the polymorphisms of CD36 gene and acute coronary syndrome(ACS).

METHODSGenotypes of CD36 single nucleotide polymorphisms were detected under PCR-RFLP in 522 patients with ACS and 1 215 controls.

RESULTSFor people under Han and Uygur ethnicities, the distribution of genotypes and allele of rs1722505 was significantly different between ACS and the controls(all P < 0.05). For Han population, the frequency of A allele of rs17154181 was significantly lower in ACS group than that in the control group(P = 0.034). Results from logistic regression analysis showed that the AA+AG genotype of rs1722505 was significantly higher in ACS patients than that in controls both between the Hans and the Uygurs(OR = 1.436, 95%CI:1.047-1.970, P = 0.025;OR = 1.589, 95%CI:1.009-2.473, P = 0.046, respectively). For Han people,AA+AG genotype of rs17154181 was significantly lower in ACS patients than that in controls(OR = 0.667, 95% CI:0.494-0.900, P = 0.008).

CONCLUSIONData from the present study suggested that the CD36 gene might serve as a genetic marker of ACS in both Han and Uygur populations.

Acute Coronary Syndrome ; epidemiology ; genetics ; Alleles ; CD36 Antigens ; genetics ; China ; epidemiology ; Ethnic Groups ; genetics ; Gene Frequency ; Genotype ; Humans ; Polymorphism, Single Nucleotide

OBJECTIVETo explore the distribution on K469E single nucleotide polymorphism of ICAM-1 gene among people with Uygur ethnicity, in Xinjiang and to analyze the correlation between ICAM-1 gene polymorphism and coronary heart disease.

METHODS245 patients with coronary heart disease patients and 377 healthy controls in Xinjiang Uygur population were studied. ICAM-1 gene K469E genotype located in exon 6 were detected by polymerase chain reaction-restricted fragments length polymorphism.

RESULTSDistribution of genotypes in the two groups appeared to be in Hardy-Weinberg equilibrium (P > 0.05). The distribution of genotypes showed significant difference between the two groups (P = 0.039)and the distributions of K and E allele also presented statistically significant difference (P = 0.031). Significant difference was also observed in males(P = 0.029 for genotype, P = 0.025 for allele)but not in females. After adjusted for confounding factors, results from logistic regression analysis indicated that KK genotype was a risk factor for CHD in Uygur male population (OR = 2.389, 95% CI:1.458-3.915, P = 0.001).

CONCLUSIONGenetic polymorphism of ICAM-1 K469E might increase the risk for coronary artery disease in males of Uygur patients in Xinjiang.

Aged ; Alleles ; China ; epidemiology ; Coronary Disease ; epidemiology ; genetics ; Ethnic Groups ; genetics ; Female ; Genetic Predisposition to Disease ; Genotype ; Humans ; Intercellular Adhesion Molecule-1 ; genetics ; Male ; Middle Aged ; Polymorphism, Single Nucleotide ; Risk Factors

OBJECTIVEThe aim of this study was to identify the appropriate cutoffs for waist-hip-ratio (WHR) for Kazakh adults at high risk of cardiovascular diseases in Xinjiang.

METHODSA Cardiovascular Risk Survey (CRS) study was carried out from October 2007 to March 2010, with 14 618 representative participants selected, including 4 094 Kazakhs. Complete data on 4 004 participants were gathered. The age span of the participants was from 35 to 88 years old with the mean age as 48.60 years. Anthropometric data, blood pressure, serum concentration of serum total cholesterol, triglyceride, low density lipoprotein cholesterol (LDL-C), high density lipoprotein cholesterol (HDL-C) and fasting glucose were documented. Prevalence rate, sensitivity, specificity and distance on the receiver operating characteristic (ROC) curve of each WHR values were calculated.

RESULTS1) The prevalence rates of hypertension, hypertriglyceridemia were high, also with higher WHR seen in both men and women. 2) The prevalence of hypercholesterolemia was high with higher WHR seen in women. 3) The shortest distances in the receiver operating characteristic curves for hypertension, dyslipidemia, diabetes, or ≥ 2 of these risk factors suggested that the WHR cutoffs were 0.92 or 0.91 for men and 0.86 or 0.85 for women.

CONCLUSIONHigher cutoff for WHR was needed in the identification of patients over 35 at high risk of cardiovascular disease among Kazakh population.

Adult ; Aged ; Aged, 80 and over ; China ; epidemiology ; Diabetes Mellitus ; epidemiology ; Dyslipidemias ; epidemiology ; Female ; Humans ; Hypertension ; epidemiology ; Male ; Middle Aged ; Reference Values ; Waist-Hip Ratio

OBJECTIVETo explore the appropriate waist-to-hip ratio (WHR) cutoffs to identify people at high risk of cardiovascular disease of Uygur population aged 35 years and over in Xinjiang.

METHODSThe cardiovascular risk survey (CRS) in Xinjiang was conducted from October 2007 to March 2010, using 4-stagestratified random sampling method and 14 618 representative participated this survey, and the questionnaire survey, anthropometric data, blood pressure, serum total cholesterol, triglyceride, low density lipoprotein (LDL-C), high density lipoprotein (HDL-C) and fasting glucose were measured. A total of 4 657 participants aged 35 years and over with complete anthropometric data were analyzed. The sensitivity, specificity and distance on the receiver operating characteristic (ROC) curve of different WHR levels predicting risk factors of cardiovascular disease were calculated. The analysis method of ROC curve was used to determine the optimum cut-off point of WHR predicting risk factors of cardiovascular disease.

RESULTS(1) There were significantly differences in prevalence of hypertension, diabetes mellitus, hypercholesterolemia, low HDL-C level, and hypertriglyceridemia between WHR < 0.75,0.75 ≤ WHR < 0.80,0.80 ≤ WHR < 0.85,0.85 ≤ WHR < 0.90,0.90 ≤ WHR < 0.95,0.95 ≤ WHR < 1.00, WHR ≥ 1.00 in male participants (P < 0.01 or 0.05), LDL-C level was similar among groups in males (P = 0.139). There were significantly differences in prevalence of hypertension, diabetes mellitus, hypercholesterolemia and hypertriglyceridemia between WHR < 0.75,0.75 ≤ WHR < 0.80,0.80 ≤ WHR < 0.85,0.85 ≤ WHR < 0.90,0.90 ≤ WHR < 0.95,0.95 ≤ WHR < 1.00, WHR ≥ 1.00 in female participants (all P < 0.01), and there were no significantly differences in prevalence of high LDL-C level and low HDL-C level among groups in females (both P > 0.05). (2) ROC analysis for hypertension, dyslipidemia, diabetes and ≥ 2 of these risk factors suggested a WHR cutoff of 0.92 for men and 0.90 for women as the optimal cutoff value for predicting high risk of cardiovascular disease of Uygur population aged 35 years and over in Xinjiang.

CONCLUSIONHigher WHR cutoffs are needed for screening people at high risk of cardiovascular disease among Uygur population aged 35 years and over in Xinjiang.

Adult ; Anthropometry ; Blood Pressure ; Cardiovascular Diseases ; diagnosis ; Diabetes Mellitus ; Dyslipidemias ; Female ; Humans ; Hypercholesterolemia ; Hypertension ; Hypertriglyceridemia ; Male ; Prevalence ; ROC Curve ; Risk Factors ; Triglycerides ; Waist-Hip Ratio