Background: Worldwide, breast cancer (BC) is the most frequently diagnosed neoplastic disease in women around menopause that is the leading cause of DALYs, because it causes a significant reduction of these women’s a...Background: Worldwide, breast cancer (BC) is the most frequently diagnosed neoplastic disease in women around menopause that is the leading cause of DALYs, because it causes a significant reduction of these women’s ability to function normally in everyday life. Methods: The present hospital-based case-control study was carried out between January and August 2018 using a structured questionnaire on 105 breast cancer women and 210 controls who are clinically free from breast cancer. Data about the study cases were collected in the oncology day-care clinics of the two main hospitals in Gaza strip “Al-Shifa and European Gaza hospitals”. Univariate logistic regression and multivariate logistic regression analyses were employed to identify the significant factors associated with BC. Results: Multivariate logistic regression analyses with adjustment for all confounders revealed that woman with BMI more than or equal 30 kg/m2 are under risk of getting BC 2.9 times greater than those having BMI less than 29 kg/m2 (AOR = 2.895;95% CI: 1.305 - 6.423). Analysis of risk according to reaching menopause showed that the estimated AOR was greater among those reached menopause (3.137, 95% CI 1.824 - 5.395) than among those that did not reach menopause. The risk of developing BC in the case of a history of incidence of BC in the family was more than two times higher (AOR = 2.632, 95% CI 1.528 - 4.535) than in case of the history of a free family of BC. Conclusion: In this context, the above-mentioned risk factors must be taken into consideration in BC management processes in the Gaza strip.展开更多
Background There has been an increase in the incidence of breast cancer in China, but no definite risk and protective factors for breast cancer have been identified in Chinese females. This study was designed to ident...Background There has been an increase in the incidence of breast cancer in China, but no definite risk and protective factors for breast cancer have been identified in Chinese females. This study was designed to identify the risk factors for female breast cancer in North and East China.展开更多
AIM： To evaluate the association and interaction of genetic polymorphisms in methylenetetrahydrofolate reductase （MTHER） and cytochrome P4502E1 （CY- P4502E1）, environment risk factors with esophageal cancer （EC...AIM： To evaluate the association and interaction of genetic polymorphisms in methylenetetrahydrofolate reductase （MTHER） and cytochrome P4502E1 （CY- P4502E1）, environment risk factors with esophageal cancer （EC） in Kazakh, a high EC incidence area of Xinjiang Uygur Autonomous Region, China. METHODS： A 1：2 matched case-control study was conducted with 120 cases of EC and 240 populationor hospital-based controls. The controls were matched for sex, nationality, area of residence and age within a 5-year difference. MTHER and CYP4502E1 genotypes were identified by PCR-based restriction fragment length polymorphism （RFLP）. A conditional logistic regression model was established to identify risk factors. The strata method was adopted in interaction analysis. RESULTS： Low consumption of green vegetables and fresh fruits, alcohol drinking, and unsafe water （shallow well, or river） were found to be the risk factors for EC. Individuals with the MTHFR677 （C/T ＋ T/T） genotype had a 2.62-fold （95% CI： 1.61-4.28） risk of developing EC compared with those who carried the C/C genotype. Individuals with the CYP4502EIC1/C1 genotype had a 3.00-fold （95% CI： 1.82-4.96） risk compared with those who carried the CYP4502E1 （C1/C2 ＋ C2/C2） genotype. Gene-environment interaction analysis showed that MTHFR677 gene polymorphism was correlated with consumption of green vegetables and fresh fruit, while CYP4502E1 C1/C1 was correlated with alcohol drinking and unsafe drinking water. MTHFR and CYP4502E1 analysis of gene-gene interaction showed that individuals with the MTHFR677 （C/T ＋ T/T） and CYP4502EIC1/ C1 genotypes had a 7.41-fold （95% CI： 3.60-15.25） risk of developing EC compared with those who carried the MTHFR677C/C and CYP4502E1 RsaI C1/C2 ＋ C2/C2 genes, and the interaction rate was higher than that of the two factors alone. CONCLUSION： Low consumption of green vegetables and fresh fruits, alcohol drinking, and unsafe water （shallow well, or river） and polymorphisms in MTHFR and CYP4502E1 genes are important risk factors for EC. There is a synergistic interaction among polymorphisms in MTHFR and CYP4502E1 genes and environment factors. MTHFR and CYP4502E1 genes can be used as biomarkers for prevention of EC in Kazakh, Xinjiang Uygur Autonomous Region, China.展开更多
目的分析甘肃省肾综合征出血热(hemorrhagic fever with renal syndrome,HFRS)的流行规律,探索影响居民HFRS发病的主要危险因素,为有针对性地制定HFRS防控策略和措施提供参考依据。方法通过中国疾病预防控制信息系统收集2017—2022年甘...目的分析甘肃省肾综合征出血热(hemorrhagic fever with renal syndrome,HFRS)的流行规律,探索影响居民HFRS发病的主要危险因素,为有针对性地制定HFRS防控策略和措施提供参考依据。方法通过中国疾病预防控制信息系统收集2017—2022年甘肃省报告的HFRS病例相关信息,对其三间分布进行描述性分析;对2020—2022年定西市岷县报告的HFRS病例开展病例对照研究,分析影响发病的主要危险因素。结果2017—2022年,甘肃省累计报告HFRS病例747例,年均发病率为0.50/10万,2019年发病率最高,为1.28/10万。男、女报告病例分别为469例(占62.78%)和278例(占37.22%),年均报告发病率分别为0.61/10万和0.38/10万。不同年龄组中45~59岁的报告病例数最多(296例,占39.63%),其次是30~44岁年龄组(184例,占24.63%)。农民是发病的主要人群(487例,占65.19%),其次是牧民(133例,占17.81%)。发病主要集中在10—12月(569例,占76.17%),11月是发病高峰(262例,占35.07%)。报告病例主要集中在夏河县、岷县和灵台县3个县,其累计报告病例数为571例(占76.44%)。病例对照研究结果表明:未接种过HFRS疫苗(OR=5.99)、住房中有鼠洞(OR=3.99)、采挖整理药材时未戴口罩(OR=10.45)、食用过被鼠类污染的食物(OR=5.49)、接触过鼠类或鼠类排泄物(OR=11.64)、饮用过未烧开的生水(OR=6.97)可能是HFRS的危险因素。结论2017—2022年甘肃省HFRS发病率呈现先上升后下降趋势,高发时间和地区均较为集中。针对高发地区,应适时开展预防接种和加强健康教育,改善居住环境,提高居民防护意识,引导居民形成良好饮食卫生习惯,降低感染风险。展开更多
文摘Background: Worldwide, breast cancer (BC) is the most frequently diagnosed neoplastic disease in women around menopause that is the leading cause of DALYs, because it causes a significant reduction of these women’s ability to function normally in everyday life. Methods: The present hospital-based case-control study was carried out between January and August 2018 using a structured questionnaire on 105 breast cancer women and 210 controls who are clinically free from breast cancer. Data about the study cases were collected in the oncology day-care clinics of the two main hospitals in Gaza strip “Al-Shifa and European Gaza hospitals”. Univariate logistic regression and multivariate logistic regression analyses were employed to identify the significant factors associated with BC. Results: Multivariate logistic regression analyses with adjustment for all confounders revealed that woman with BMI more than or equal 30 kg/m2 are under risk of getting BC 2.9 times greater than those having BMI less than 29 kg/m2 (AOR = 2.895;95% CI: 1.305 - 6.423). Analysis of risk according to reaching menopause showed that the estimated AOR was greater among those reached menopause (3.137, 95% CI 1.824 - 5.395) than among those that did not reach menopause. The risk of developing BC in the case of a history of incidence of BC in the family was more than two times higher (AOR = 2.632, 95% CI 1.528 - 4.535) than in case of the history of a free family of BC. Conclusion: In this context, the above-mentioned risk factors must be taken into consideration in BC management processes in the Gaza strip.
文摘Background There has been an increase in the incidence of breast cancer in China, but no definite risk and protective factors for breast cancer have been identified in Chinese females. This study was designed to identify the risk factors for female breast cancer in North and East China.
基金Supported by The National Natural Science Foundation of China, No. 30660161Prophase Basic Research Project of Ministry of Science and Technology of China, No. 2005CCA03700, No. 2007CB516804+1 种基金Science and Technology Research Project of Ministry of Education of China, No. 206167Laboratory of Endemic and Ethnic Diseases Program of Xinjiang, No. 200416
文摘AIM： To evaluate the association and interaction of genetic polymorphisms in methylenetetrahydrofolate reductase （MTHER） and cytochrome P4502E1 （CY- P4502E1）, environment risk factors with esophageal cancer （EC） in Kazakh, a high EC incidence area of Xinjiang Uygur Autonomous Region, China. METHODS： A 1：2 matched case-control study was conducted with 120 cases of EC and 240 populationor hospital-based controls. The controls were matched for sex, nationality, area of residence and age within a 5-year difference. MTHER and CYP4502E1 genotypes were identified by PCR-based restriction fragment length polymorphism （RFLP）. A conditional logistic regression model was established to identify risk factors. The strata method was adopted in interaction analysis. RESULTS： Low consumption of green vegetables and fresh fruits, alcohol drinking, and unsafe water （shallow well, or river） were found to be the risk factors for EC. Individuals with the MTHFR677 （C/T ＋ T/T） genotype had a 2.62-fold （95% CI： 1.61-4.28） risk of developing EC compared with those who carried the C/C genotype. Individuals with the CYP4502EIC1/C1 genotype had a 3.00-fold （95% CI： 1.82-4.96） risk compared with those who carried the CYP4502E1 （C1/C2 ＋ C2/C2） genotype. Gene-environment interaction analysis showed that MTHFR677 gene polymorphism was correlated with consumption of green vegetables and fresh fruit, while CYP4502E1 C1/C1 was correlated with alcohol drinking and unsafe drinking water. MTHFR and CYP4502E1 analysis of gene-gene interaction showed that individuals with the MTHFR677 （C/T ＋ T/T） and CYP4502EIC1/ C1 genotypes had a 7.41-fold （95% CI： 3.60-15.25） risk of developing EC compared with those who carried the MTHFR677C/C and CYP4502E1 RsaI C1/C2 ＋ C2/C2 genes, and the interaction rate was higher than that of the two factors alone. CONCLUSION： Low consumption of green vegetables and fresh fruits, alcohol drinking, and unsafe water （shallow well, or river） and polymorphisms in MTHFR and CYP4502E1 genes are important risk factors for EC. There is a synergistic interaction among polymorphisms in MTHFR and CYP4502E1 genes and environment factors. MTHFR and CYP4502E1 genes can be used as biomarkers for prevention of EC in Kazakh, Xinjiang Uygur Autonomous Region, China.
文摘目的分析甘肃省肾综合征出血热(hemorrhagic fever with renal syndrome,HFRS)的流行规律,探索影响居民HFRS发病的主要危险因素,为有针对性地制定HFRS防控策略和措施提供参考依据。方法通过中国疾病预防控制信息系统收集2017—2022年甘肃省报告的HFRS病例相关信息,对其三间分布进行描述性分析;对2020—2022年定西市岷县报告的HFRS病例开展病例对照研究,分析影响发病的主要危险因素。结果2017—2022年,甘肃省累计报告HFRS病例747例,年均发病率为0.50/10万,2019年发病率最高,为1.28/10万。男、女报告病例分别为469例(占62.78%)和278例(占37.22%),年均报告发病率分别为0.61/10万和0.38/10万。不同年龄组中45~59岁的报告病例数最多(296例,占39.63%),其次是30~44岁年龄组(184例,占24.63%)。农民是发病的主要人群(487例,占65.19%),其次是牧民(133例,占17.81%)。发病主要集中在10—12月(569例,占76.17%),11月是发病高峰(262例,占35.07%)。报告病例主要集中在夏河县、岷县和灵台县3个县,其累计报告病例数为571例(占76.44%)。病例对照研究结果表明:未接种过HFRS疫苗(OR=5.99)、住房中有鼠洞(OR=3.99)、采挖整理药材时未戴口罩(OR=10.45)、食用过被鼠类污染的食物(OR=5.49)、接触过鼠类或鼠类排泄物(OR=11.64)、饮用过未烧开的生水(OR=6.97)可能是HFRS的危险因素。结论2017—2022年甘肃省HFRS发病率呈现先上升后下降趋势,高发时间和地区均较为集中。针对高发地区,应适时开展预防接种和加强健康教育,改善居住环境,提高居民防护意识,引导居民形成良好饮食卫生习惯,降低感染风险。
