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无症状乙型肝炎病毒感染者配偶献血潜在输血风险评估
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作者 叶贤林 许晓绚 +2 位作者 党英男 李然 曾劲峰 《中国输血杂志》 2026年第1期62-68,共7页
目的了解深圳地区无症状乙型肝炎病毒(HBV)感染者配偶献血隐匿性HBV感染(OBI)的情况,分析血清学和分子生物学特征及可能传染途径,提出改进血液安全策略。方法收集HBsAg初筛检测结果为阳性的献血者及同时献血配偶的标本,采用电化学发光... 目的了解深圳地区无症状乙型肝炎病毒(HBV)感染者配偶献血隐匿性HBV感染(OBI)的情况,分析血清学和分子生物学特征及可能传染途径,提出改进血液安全策略。方法收集HBsAg初筛检测结果为阳性的献血者及同时献血配偶的标本,采用电化学发光免疫法(ECLI)定量检测乙肝两对半,同时进行HBV核酸提取,对BCP/PC区及S区进行巢式扩增、基因测序及序列分析,同时进行qPCR定量检测。结果收集到快速筛查结果为HBsAg+的献血者标本56份及其同时献血的配偶标本56份,共112份。56位献血者均确认为HBsAg+/DNA+/抗-HBc+,即HBV无症状慢性感染(CHB)。其献血配偶56人中,共11人被确认HBV DNA+,总感染率为19.6%,男性感染率(23.1%)高于女性(16.7%),其中6例(10.8%)为OBI,3例OBI(5.4%)常规血液筛查结果为阴性。输血后残余风险评估为1∶127[95%CI:1∶66-1∶356]。发现在感染HBV伴侣中存在免疫逃逸突变病毒株E164D,I126T和T131N/M133T糖基化突变,经序列分析,8例可能由伴侣感染。结论19.6%无症状HBV感染献血者配偶感染HBV,OBI感染率为10.9%。其中5.4%为血液常规筛查合格结果。建议HBV感染者配偶不要献血,以确保血液安全。 展开更多
关键词 献血者 乙肝病毒无症状感染 配偶 隐匿性乙肝病毒感染(OBI) 血液安全
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Diagnostic efficacy of fecal-based miR-92a for advanced colorectal neoplasia:a prospective multicenter screening trial
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作者 Jia-Chen Wang Li Zhao +31 位作者 Xiang-Yang Yu Ting-Ping Wu Chang-Fa Xia Ju-Fang Shi Hui He Zhi-Qi Chen Dan Shi Han Xue Qi Ao Shu-Ping Liao Zhang-Qiang Zheng Qiong-Fang Huang Lin Li Sui-Ling Lin Ying-Xue Li Wen-Long Hu Ji Peng Lin Lei Mao-Mao Cao Fan Yang Xin-Xin Yan Si-Yi He Meng-Di Cao Shao-Li Zhang Yi Teng Qian-Ru Li Nuo-Pei Tan Hao-Yang Yu Hong-Hui Cheng Xi-Mo Wang Wei-Qing Wu Wan-Qing Chen 《Military Medical Research》 2025年第11期1722-1734,共13页
Background:More efficacious,noninvasive screening methods are needed for advanced colorectal neoplasia.miR-92a is a reliable and reproducible biomarker for early colorectal cancer detection in stool samples.We compare... Background:More efficacious,noninvasive screening methods are needed for advanced colorectal neoplasia.miR-92a is a reliable and reproducible biomarker for early colorectal cancer detection in stool samples.We compared the diagnostic efficacies of miR-92a,immunochemical fecal occult blood testing(FIT),and their combination(FIT+miR-92a)in a prospective multicenter screening trial.Methods:Overall,16,240 participants aged 30-75 years were enrolled between April 1,2021,and December 31,2023.A total of 15,586 participants returned samples available for both FIT and miR-92a tests.All those with positive,and a random selection of those with negative screening tests were recommended to undergo colonoscopy.Follow-ups were performed until participants completed the colonoscopic examination.A total of 1401 screen-positive and 2079 randomly selected screen-negative individuals completed colonoscopies.Primary outcomes included sensitivity,number needed to screen(NNS),Youden index and receiver operating characteristic area under the curve(AUC)for advanced adenomas and colorectal cancer[advanced neoplasia(AN)]for each screening modality in the diagnostic performance analysis.Results:Colonoscopy was performed in 3480 individuals.The colonoscopy compliance rate was 47.8%for screen-positive individuals.The sensitivity of miR-92a vs.FIT for AN was 70.9%vs.54.3%(P<0.001),NNS was 24.7 vs.32.2(P=0.001),Youden index was 47.9%vs.35.0%(P<0.001),AUC was 0.74 vs.0.67(P=0.010).FIT+miR-92a had a sensitivity of 85.4%,an NNS of 20.5,a Youden index of 47.9%and an AUC of 0.74 for AN.Conclusions:For AN screening,miR-92a demonstrated better sensitivity,NNS,Youden index and AUC as compared with FIT.Compared with FIT,using miR-92a appears to be more efficient for population-based screening programs.Screening sensitivity for AN can be further enhanced if conditionally used in combination with FIT.Trial registration Chinese Clinical Trial Registration Number:ChiCTR2200065415. 展开更多
关键词 Advanced neoplasia Colorectal cancer Immunochemical fecal occult blood testing miR-92a SCREENING
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石房蛤毒素暴露对F1代小鼠认知功能的影响及其作用机制
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作者 陈妹 黄海燕 +4 位作者 林玲玲 任晓虎 陈效 刘云岗 刘建军 《癌变·畸变·突变》 2026年第1期27-33,共7页
目的:探究石房蛤毒素(STX)暴露对F1代小鼠认知功能的影响及其可能机制。方法:通过饮水染毒,在C57BL/6J小鼠亲代妊娠期和哺乳期至F1子代成年期期间进行STX染毒,剂量分别为0、0.02、0.20、2.00μg/kg。对出生后第60天和第180天(PND60和PND... 目的:探究石房蛤毒素(STX)暴露对F1代小鼠认知功能的影响及其可能机制。方法:通过饮水染毒,在C57BL/6J小鼠亲代妊娠期和哺乳期至F1子代成年期期间进行STX染毒,剂量分别为0、0.02、0.20、2.00μg/kg。对出生后第60天和第180天(PND60和PND180)的小鼠,分别采用Morris水迷宫实验评估其记忆及认知功能,NeuN免疫组织化学染色法评估小鼠皮层神经损伤情况,串联质量标签(TMT)定量蛋白质组学技术对小鼠皮层组织差异蛋白进行筛选及富集分析,并利用Western blot法对差异蛋白进行验证,试剂盒检测皮层组织ATP水平。结果:与对照组比较,STX各剂量组间母鼠体质量、饮水量以及F1子代小鼠的体质量增长均无明显差异(P>0.05)。与对照组相比,Morris水迷宫实验结果表明,STX染毒组PND180小鼠到达平台时间显著增加、穿越平台次数显著减少、目标象限活动时间占比显著减少(均为P<0.05),而PND60阶段尚未观察到显著差异;免疫组织化学染色结果表明,STX染毒组PND180小鼠神经元数量显著减少(P<0.05);蛋白质组学分析结果表明,2.00μg/kg组PND60小鼠筛选出295个差异蛋白,PND180小鼠筛选出327个差异蛋白;PND60和PND180小鼠GO及KEGG分析均富集到氧化磷酸化途径。Western blot检测结果表明,与对照组相比,PND180小鼠皮层氧化磷酸化通路上的Ndufs1和Ndufb9蛋白表达水平显著升高(P<0.05),PND60蛋白表达水平无显著差异(P>0.05)。试剂盒检测结果表明,STX染毒组PND180小鼠ATP水平较对照组显著降低(P<0.05)。结论:母鼠妊娠和哺乳期至子鼠成年期STX暴露致F1代小鼠认知损伤,其作用机制可能与氧化磷酸化途径有关。 展开更多
关键词 石房蛤毒素 认知损伤 蛋白质组学 氧化磷酸化
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基于Alltype^(TM)Fastplex^(TM)二代测序的HLA-B等位基因漏检原因分析
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作者 全湛柔 杨冰娜 +1 位作者 刘洁 邹红岩 《中国实验血液学杂志》 北大核心 2026年第1期255-260,共6页
目的:探讨1例基于Alltype^(TM)Fastplex^(TM)二代测序(NGS)的HLA-B等位基因漏检情况,以评估NGS在HLA基因分型中的准确性和局限性。方法:应用PCR-序列特异性寡核苷酸探针(SSOP)及Alltype^(TM)Fastplex^(TM)NGS进行HLA常规检测,发现1例HL... 目的:探讨1例基于Alltype^(TM)Fastplex^(TM)二代测序(NGS)的HLA-B等位基因漏检情况,以评估NGS在HLA基因分型中的准确性和局限性。方法:应用PCR-序列特异性寡核苷酸探针(SSOP)及Alltype^(TM)Fastplex^(TM)NGS进行HLA常规检测,发现1例HLA-B位点结果不一致的血小板无力症患者样本后,采用PCR-直接测序法(SBT)及AlloSeq Tx17杂交捕获的NGS技术对该样本进行复检,以验证Alltype^(TM)Fastplex^(TM)NGS的检测结果。结果:SSOP分型结果显示该患者HLA-B位点为B*15:01,40:01,而Alltype^(TM)Fastplex^(TM)NGS结果分析为B*40:01,40:01纯合子。为了确认NGS的检测结果,本研究对该纯合子样本进行了SBT和AlloSeq Tx17杂交捕获NGS复检。SBT分析结果显示,存在两种可能的组合,分别是B*15:01,40:01和B*15:07,40:01,表明SBT结果模棱两可。而AlloSeq Tx17 NGS结果则明确显示为B*15:01,40:01,与SSOP分型结果一致,从而确认了Alltype^(TM)Fastplex^(TM)NGS在HLA-B位点漏检了B*15:01等位基因。结论:扩增子文库构建的NGS法存在HLA等位基因漏检的局限性,特别是对于检出的纯合子样本,应采用多种实验方法进行复核,保证HLA基因分型结果的准确性。 展开更多
关键词 HLA-B 基因分型 扩增子 杂交捕获 二代测序
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橘小实蝇蛋白饵剂的活性引诱化合物鉴定及潜在应用
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作者 茹川鉴 许光伟 +3 位作者 王琳 严善春 刘伟 王桂荣 《植物保护》 北大核心 2026年第1期204-213,219,共11页
橘小实蝇Bactrocera dorsalis是全球重要的果蔬害虫,对柑橘、芒果、番石榴和桃等水果造成严重损失。触杀类化学农药对其防控效果有限,需频繁施用,导致农药残留风险增加并加速抗药性发展。在此背景下,以引诱剂为基础的绿色防控技术,因其... 橘小实蝇Bactrocera dorsalis是全球重要的果蔬害虫,对柑橘、芒果、番石榴和桃等水果造成严重损失。触杀类化学农药对其防控效果有限,需频繁施用,导致农药残留风险增加并加速抗药性发展。在此背景下,以引诱剂为基础的绿色防控技术,因其能够减少对化学农药的依赖、降低农药残留风险,并具有环境友好的特点,展现出显著的应用潜力。目前,橘小实蝇引诱剂主要包括雄性引诱剂和蛋白饵剂,其中蛋白饵剂因能够诱集雌虫,具有较好的应用前景。蛋白饵剂是一类蛋白源发酵物,其成分复杂且稳定性不足。因此,本研究基于具备一定田间引诱能力的蛋白饵剂,利用分析化学和行为学研究对其行为学活性组分进行了鉴定,开发新型实蝇引诱剂配方,并测试了不同配方的竞争或增效效果。研究结果表明,原始饵剂在暴露空气0、3 d和7 d后均对雌雄成虫有诱集效果,以暴露0 d的诱集能力最强。进一步利用固相微萃取技术对暴露0 d的原始饵剂顶空挥发物进行收集,并通过高分辨气相色谱质谱联用仪进行了3次鉴定。筛选出峰面积占比前五且含量超过1%的物质,最终得到2种候选配方。行为学测定显示,2种配方均对雌雄成虫有诱集作用,配方1效果更强。当去掉高含量物质反式-3-己烯酸后,配方1的诱集能力显著下降,表明其为主效物质;去掉其他4种低含量物质时,仅雌虫诱集量略降,说明其对反式-3-己烯酸的诱集作用起一定增效效果。反式-3-己烯酸在0.1 mg剂量下对雌雄虫已有诱集作用,且随着剂量增加效果增强。本研究进一步探讨了配方1与原始蛋白饵剂的竞争与协同作用。在1 mg下,配方1诱集能力低于原始蛋白饵剂;在5 mg和10 mg时,对雄虫诱集能力相当,对雌虫诱集能力略低,整体未能超越原始蛋白饵剂。但将1 mg配方1添加至蛋白饵剂后,显著提升了蛋白饵剂的诱集能力。上述结果为橘小实蝇新型引诱剂的开发提供了科学依据,并为未来发展针对雌虫的诱杀技术奠定了基础。 展开更多
关键词 蛋白饵剂 橘小实蝇 雌虫引诱剂
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利培酮在儿童青少年精神障碍治疗中血液药物浓度监测结果及影响因素分析
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作者 郑财济 沈小丹 +2 位作者 王娟 陈政 郑淑霞 《安徽医药》 2026年第2期415-419,共5页
目的 分析利培酮在儿童青少年精神障碍治疗中血液药物浓度监测结果及影响因素,为利培酮在儿童青少年病人中合理用药提供依据。方法 回顾性收集2018―2022年在深圳市康宁医院住院接受利培酮治疗并行血药浓度监测的儿童青少年精神障碍病人... 目的 分析利培酮在儿童青少年精神障碍治疗中血液药物浓度监测结果及影响因素,为利培酮在儿童青少年病人中合理用药提供依据。方法 回顾性收集2018―2022年在深圳市康宁医院住院接受利培酮治疗并行血药浓度监测的儿童青少年精神障碍病人243例,分析性别、年龄、给药剂量、是否原研产品、不同联合用药和联合用药品种数等对总活性成分血药浓度(C_(AM))、浓度剂量比(C/D)值和利培酮血药浓度/9羟基利培酮血药浓度(C_(RIS)/C_(9-OH-RIS))的影响。结果 儿童青少年服用利培酮的日剂量为(3.55±1.41)mg/d,C_(AM)为27.80μg/L,C/D为8.48。男性C_(AM)为25.40μg/L,C/D为7.85;女性C_(AM)为31.70μg/L,C/D为9.73。性别、日剂量和联合3种精神药物对C/D值有显著影响(P<0.01)。多重线性回归方程中,性别和日剂量对C_(AM)有显著影响(P<0.01)。结论 利培酮治疗儿童青少年精神疾病时,受性别和日剂量的影响。临床医师或药师可应用血药浓度监测,结合临床疗效,指导调整用药。 展开更多
关键词 精神病 利培酮 儿童 青少年 浓度剂量比 治疗药物监测
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Spatio-temporal analysis of female breast cancer incidence in Shenzhen,2007-2012 被引量:6
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作者 Hai-Bin Zhou Sheng-Yuan Liu +4 位作者 Lin Lei Zhong-Wei Chen Ji Peng Ying-Zhou Yang Xiao-Li Liu 《Chinese Journal of Cancer》 SCIE CAS CSCD 2015年第5期198-204,共7页
Introduction:Breast cancer is a leading tumor with a high mortality in women.This study examined the spatio-temporal distribution of the incidence of female breast cancer in Shenzhen between 2007 and 2012.Methods:The ... Introduction:Breast cancer is a leading tumor with a high mortality in women.This study examined the spatio-temporal distribution of the incidence of female breast cancer in Shenzhen between 2007 and 2012.Methods:The data on breast cancer incidence were obtained from the Shenzhen Cancer Registry System.To describe the temporal trend,the average annual percentage change(AAPC) was analyzed using a pinpoint regression model.Spatial autocorrelation and a retrospective spatio-temporal scan approach were used to detect the spatio-temporal cluster distribution of breast cancer cases.Results:Breast cancer ranked first among different types of cancer in women in Shenzhen between 2007 and 2012 with a crude incidence of 20.0/100,000 population.The age-standardized rate according to the world standard population was 21.1/100,000 in 2012,with an AAPC of 11.3%.The spatial autocorrelation analysis showed a spatial correlation characterized by the presence of a hotspot in south-central Shenzhen,which included the eastern part of Luohu District(Donghu and Liantang Streets) and Yantian District(Shatoujiao,Haishan,and Yantian Streets).Five spatio-temporal cluster areas were detected between 2010 and 2012,one of which was a Class 1 cluster located in southwestern Shenzhen in 2010,which included Yuehai,Nantou,Shahe,Shekou,and Nanshan Streets in Nanshan District with an incidence of 54.1/100,000 and a relative risk of 2.41;the other four were Class 2 clusters located in Yantian,Luohu,Futian,and Longhua Districts with a relative risk ranging from 1.70 to 3.25.Conclusions:This study revealed the spatio-temporal cluster pattern for the incidence of female breast cancer in Shenzhen,which will be useful for a better allocation of health resources in Shenzhen. 展开更多
关键词 深圳地区 时空分析 乳腺癌 发病率 女性 空间自相关分析 时空分布 空间相关性
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Impact of Smoke-Free Legislation on Acute Myocardial Infarction and Subtypes of Stroke Incidence in Shenzhen,China,2012-2016:An Interrupted Time Series Analysis 被引量:9
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作者 SHI Yu Lin XIONG Jing Fan +3 位作者 LIU Li Qun ZHAO Zhi Guang WAN Xia PENG Ji 《Biomedical and Environmental Sciences》 SCIE CAS CSCD 2023年第6期527-536,共10页
Objective This study assesses the impact of smoke-free legislation on the incidence rate for acute myocardial infarction(AMI)and stroke in Shenzhen.Methods Data on ischemic(n=72,945)and hemorrhagic(n=18,659)stroke and... Objective This study assesses the impact of smoke-free legislation on the incidence rate for acute myocardial infarction(AMI)and stroke in Shenzhen.Methods Data on ischemic(n=72,945)and hemorrhagic(n=18,659)stroke and AMI(n=17,431)incidence covering about 12 million people in Shenzhen from 2012 to 2016 were used.Immediate and gradual changes in incidence rates were analyzed using segmented Poisson regression.Results Following the smoke-free legislation,a 9%(95%CI:3%-15%)immediate reduction was observed in AMI incidence,especially in men(8%,95%CI:1%-14%)and in those aged 65 years and older(17%,95%CI:9%-25%).The gradual annual benefits were observed only in hemorrhagic and ischemic stroke incidence,with a 7%(95%CI:2%-11%)and 6%(95%CI:4%-8%)decrease per year,respectively.This health effect extended gradually to the 50-64 age group.In addition,neither the immediate nor gradual decrease in stroke and AMI incidence rates did not show statistical significance among the 35-49 age group(P>0.05).Conclusion Smoke-free legislation was enforced well in Shenzhen,which would generate good experiences for other cities to enact and enforce smoke-free laws.This study also provided more evidence of the health benefits of smoke-free laws on stroke and AMI. 展开更多
关键词 Smoke-free legislation Second-hand smoke TOBACCO Myocardial infarction STROKE Prevention
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Clustering of Non-communicable Diseases Risk Factors in Healthy Adults Aged 35 Years and Older in Shenzhen,China 被引量:4
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作者 NI Wen Qing XU Jian +7 位作者 LIU Min LIU Xiao Li YANG Li Chen ZHUO Zhi Peng YUAN Xue Li SONG Jin Ping CHI Hong Shan BAI Ya Min 《Biomedical and Environmental Sciences》 SCIE CAS CSCD 2017年第9期661-666,共6页
We assessed the prevalence of non‐ communicable diseases(NCDs) risk factors with a focus on their clustering among healthy adults in Shenzhen, China. Data from the 2011 China Health and Nutrition Survey, comprising... We assessed the prevalence of non‐ communicable diseases(NCDs) risk factors with a focus on their clustering among healthy adults in Shenzhen, China. Data from the 2011 China Health and Nutrition Survey, comprising a regionally representative sample of 806 healthy adults aged 35 years or older, were obtained to determine the prevalence of five risk factors for NCDs. The prevalence of current smoking, central obesity, impaired fasting glucose, borderline hypertension, and borderline high total cholesterol was 19.97%, 28.29%, 4.47%, 10.55%, and 36.10%, respectively. A total 63.77% of participants had at least one risk factor. Upon examination of risk factor clustering, we observed that 7.57% of participants had at least three risk factors. Using this threshold as a cutoff, clustering of risk factors was associated with sex [odds ratio(OR) = 3.336, 95% confidence interval(CI): 1.782 to 6.246], physical activity(OR = 1.913, 95% CI: 1.009 to 3.628), and BMI(OR = 7.376, 95% CI: 3.812 to 14.270). The prevalence of risk factors for NCDs is fairly high among healthy adults in Shenzhen, with a clustering tendency. 展开更多
关键词 Non‐communicable diseases Healthy adults PREVALENCE Risk factors
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Increasing Trends and Species Diversity of Nontuberculous Mycobacteria in A Coastal Migrant City−Shenzhen, China 被引量:3
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作者 JI Le Cai CHEN Shuai +3 位作者 PIAO Wei HONG Chuang Yue LI Jin Li JIANG Qi 《Biomedical and Environmental Sciences》 SCIE CAS CSCD 2022年第2期146-150,共5页
Nontuberculous mycobacteria(NTM)are opportunistic pathogens of environmental origin that can cause human infections in a wide variety of tissues[1].Lung involvement is the most common manifestation of NTM infection[1]... Nontuberculous mycobacteria(NTM)are opportunistic pathogens of environmental origin that can cause human infections in a wide variety of tissues[1].Lung involvement is the most common manifestation of NTM infection[1].The symptoms and radiographic signs are similar to those of patients with pulmonary tuberculosis(TB)who are infected with Mycobacterium tuberculosis complex(MTBC)[1].Most NTM species are naturally resistant to first-line anti-TB drugs and have different resistance profiles,thus misdiagnosis leads to inappropriate treatment and increases the risk of poor prognosis for patients with an NTM infection,and even wider spread through person-to-person contact[2]. 展开更多
关键词 INVOLVEMENT TUBERCULOSIS DRUGS
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No expenditure difference among patients with liver cancer at stageⅠ-ⅣV:Findings from a multicenter cross-sectional study in China 被引量:8
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作者 Haike Lei Lin Lei +19 位作者 Jufang Shi Yongzhong Wu Ling Liang Huiyao Huang Mei He Fangzhou Bai Maomao Cao Hui Qiu Yuting Wang Chengcheng Liu Jia Du Hong Wang Yan Zhang Mengdi Cao Ji Peng Ni Li Chunfeng Qu Min Dai Wanqing Chen Jie He 《Chinese Journal of Cancer Research》 SCIE CAS CSCD 2020年第4期516-529,共14页
Objective:The number of liver cancer patients in China accounts for more than half of the world.However,China currently lacks national,multicenter economic burden data,and meanwhile,measuring the differences among dif... Objective:The number of liver cancer patients in China accounts for more than half of the world.However,China currently lacks national,multicenter economic burden data,and meanwhile,measuring the differences among different subgroups will be informative to formulate corresponding policies in liver cancer control.Thus,the aim of the study was to measure the economic burden of liver cancer by various subgroups.Methods:A hospital-based,multicenter and cross-sectional survey was conducted during 2012・2014,covering 39 hospitals and 21 project sites in 13 provinces across China.The questionnaire covers clinical information,sociology,expenditure,and related variables.All expenditure data were reported in Chinese Yuan(CNY)using 2014 values.Results:A total of 2,223 liver cancer patients were enrolled,of whom 59.61%were late-stage cases(III-IV),and 53.8%were hepatocellular carcinoma.The average total expenditure per liver cancer patient was estimated as 53,220 CNY,including 48,612 CNY of medical expenditures(91.3%)and 4,608 CNY of non-medical expenditures(8.7%).The average total expenditures in stage I,H,m and stage IV were 52,817 CNY,50,877 CNY,50,678 CNY and 54,089 CNY(P>0.05),respectively.Non-medical expenditures including additional meals,additional nutrition care,transportation,accommodation and hired informal nursing were 1,453 CNY,839 CNY,946 CNY,679 CNY and 200 CNY,respectively.The one-year out-of-pocket expenditure of a newly diagnosed patient was 24,953 CNY,and 77.2%of the patients suffered an unmanageable financial burden.Multivariate analysis showed that overall expenditure differed in almost all subgroups(P<0.05),except for sex,clinical stage,and pathologic type.Conclusions:There was no difference in treatment expenditure for liver cancer patients at different clinical stages,which suggests that maintaining efforts on treatment efficacy improvement is important but not enough.To fiirtherly reduce the overall economic burden from liver cancer,more effort should be given to primary and secondary prevention strategies. 展开更多
关键词 Liver cancer medical expenditure non-medical expenditure economic burden
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Impacts of Atmospheric Conditions on Influenza in Southern China. Part I. Taking Shenzhen City for Example 被引量:1
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作者 Jun Qin Hong Fang +3 位作者 Zheng-hong Chen Hong-nan Zhai Li Zhang Xiao-wen Chen 《Open Journal of Air Pollution》 2012年第3期59-66,共8页
In this study, we analyse the relationship between the occurrences of influenza in Shenzhen, a rapid developing city in subtropic regions of southern China with over 10 million populations, and the vapor pressure (VP)... In this study, we analyse the relationship between the occurrences of influenza in Shenzhen, a rapid developing city in subtropic regions of southern China with over 10 million populations, and the vapor pressure (VP), the concentrations of atmospheric pollutants (SO2, NO2, PM10) for the period of 2003 - 2008. Using the data such as the rate of Influ- en-za-Like-Illness (ILI (%)), the concentrations of pollutants and vapor pressure, we show quite different results from pre-vious research conducted in other regions in China which are dominated by temperate climate and with influenza out-break in Winter and Autumn. Our results show that the rate of ILI in Shenzhen reaches its maximum in Summer and minimum in Winter and the concentrations of pollutants were significantly correlated with ILI (%), there are significant positive correlations between ILI (%) and VP which can explain over 25% the variance of ILI (%) variations. Quite surprisingly, both atmospheric SO2 and PM10 concentrations are negatively correlated with ILI (%), this is because acid deposition may limit the spread of disease, the seasonal variations of acid rain in Shenzhen could contribute to the sea-sonality of its influenza. Furthermore, there are some significant correlations between preceding VP and SO2 and PM10 concentrations to ILI occurrence and such connections can be used for ILI predictions. 展开更多
关键词 Vapor Pressure Air POLLUTANTS Acid RAIN INFLUENZA The Rate of ILI
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Health Risk Assessment on Pesticide Residues in Drinking Water in Shenzhen
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作者 Guohong Liu Ziqian Xu +4 位作者 Xinyun Xu Zhaoqiong Peng Jin Li Guangwen Huang Wei Wang 《Occupational Diseases and Environmental Medicine》 2018年第4期119-129,共11页
Objectives: To conduct health risk assessment of drinking water pesticide residues and its annual trend analysis in Shenzhen City. Methods: The samples of product water, pipe water and secondary supply water from 2011... Objectives: To conduct health risk assessment of drinking water pesticide residues and its annual trend analysis in Shenzhen City. Methods: The samples of product water, pipe water and secondary supply water from 2011 to 2013 were collected and analyzed. The evaluation models of health risk assessments for children and adults on the 12 non-carcinogenic materials (namely heptachlor, pentachlorophenol, hexachlorocyclohexane, hexachlorobenzene, DDT, malathion, glyphosate, dimethoate, bentazone, atrazine, chlorothalonil, furadan) were recommended by the U.S. Environmental Protection Agency (US EPA). Results: The results showed that the maximums of the measured indicators in the above were controlled in accordance with the National Health Standards (GB5749-2006) published by Ministry of Health in China. The adults and children’s health indices (HIs) of the 12 non-carcinogenic materials were greater than 1 (2.323 - 6.312). Dimethoate residue in factory and peripheral water was the largest risks of harm among the non-carcinogenic pollutants measured. And its HIi (Its Hli) was also greater than 1 (1.995 - 5.094) and followed by hexachlorobenzene and heptachlor. Annual rising trend on health risk of the 12 pesticide residues indicated that their HIT on adults was 2323. 18 × 10-3 in 2011, 2340. 18 × 10-3 in 2012 and 2431. 97 × 10-3 in 2013, and HIT on children was 2965. 07 × 10-3 in 2011, 2986. 77 × 10-3 in 2012 and 3103. 93 × 10-3 in 2013, respectively. This study also suggested that the average risk of peripheral water samples (HIT was equal to 2619. 64 × 10-3) was greater than the factory samples’ (HIT was the same as 2366. 92 × 10-3), and the children’s health risk was greater than the adults’. Conclusions: Health risks of drinking water pesticide residues in Shenzhen have exceeded the threshold values. The dimethoate was the main hazard and had been rising annually, and the children’s health risk was greater than the adults’. 展开更多
关键词 DRINKING Water PESTICIDE RESIDUES Health Risk Assessment ANNUAL Trend Analysis
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Health Risk Assessment on Drinking Water in Shenzhen, China
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作者 Guohong Liu Ziqian Xu +2 位作者 Jin Li Guangwen Huang Wei Wang 《Occupational Diseases and Environmental Medicine》 2018年第3期71-80,共10页
Objectives: To conduct health risk assessment on drinking water in 2012 in Shenzhen of China. Methods: The water quality monitoring data on product water and pipe water in 2012 were collected and analyzed, and the ris... Objectives: To conduct health risk assessment on drinking water in 2012 in Shenzhen of China. Methods: The water quality monitoring data on product water and pipe water in 2012 were collected and analyzed, and the risk evaluation models recommended by the U.S. environmental protection agency (US EPA) were employed, to perform adults and children’s health risk assessments on the three kinds of genetic toxic substances such as hexavalent chromium, cadmium and arsenic and the 12 non-carcinogenic materials such as iron, manganese, lead, fluoride, volatile phenol, cyanide, mercury, ammonia nitrogen, nitrate, copper, zinc and selenium. Results: The results about water quality from the 150 factory samples and 207 peripheral water samples showed that the measured indicators in other water samples were accord with the National Health Standards (GB5749-2006) released by Ministry of Health of the People’s Republic of China, except manganese level in one factory sample and the same index in one peripheral sample, and nitrate concentration in another water sample were out of limit, respectively. Namely, the total of 3 samples was disqualification. The adults and children’s health risks (HI) on the 12 non-carcinogenic materials were 178.04 × 10-8 and 249.96 × 10-8 in the factor water samples, and 363.02 × 10-8 and 509.66 × 10-8 in the pipe samples, respectively. Lead in factory water and fluoride in peripheral water samples were the most serious harm in the all measured non-carcinogenic indicators. The adults and children’s cancer risks (R) on the 3 genetic toxic substances were 25.60 × 10-6 and 28.51 × 10-6 in the factor water samples, and 23.47 × 10-6 and 26.08 × 10-6 in the pipe samples, respectively. Hexavalent chromium was the most damage among the three detected carcinogenic indicators. Therefore, the total adults and children’s health hazard risks including the 3 carcinogenic and 12 non-carcinogenic substances were 27.38 × 10-6 and 31.00 × 10-6 in the factor water samples, and 27.10 × 10-6 and 31.17 × 10-6 in the pipe samples, respectively. Genetic toxic matters in drinking water are the main hazard and more children’s health risk than adults’ risk. Conclusions: The health risk (R) on the 15 kinds of chemicals in Shenzhen’s municipal water supply was in the range of maximum acceptable risk levels (5.0 × 10-5/a) recommended by the International Commission of Radiation Protection (ICRP). The results in this study indicate that the carcinogenic substances are greater risk comparing with the non-carcinogenic substances, and hexavalent chromium is the biggest carcinogenic risk, and lead and fluoride are the most non-carcinogenic risk, and the rather risk of children than adults. 展开更多
关键词 Urban DRINKING Water CARCINOGENIC MATERIALS NON-CARCINOGENIC MATERIALS Health Risk Assessment
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Effects of Seasonal and Temperature Variations on the Association between Nitrogen Dioxide Exposure and First-Aid Incidence for Neurological Diseases in Shenzhen,China
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作者 Tongyu Yang Qingqing Wang +8 位作者 Yuchen Tian Siyi Chen Yilei Ma Peng Wang Suli Huang Ji Peng Jinquan Cheng Jing Hu Ping Yin 《Biomedical and Environmental Sciences》 SCIE CAS CSCD 2024年第10期1213-1220,共8页
Neurological disorders,including headaches(tension-type headaches,medication-overuse headaches,and migraines)and dementias that include Alzheimer’s disease,are among the most prevalent and debilitating global conditi... Neurological disorders,including headaches(tension-type headaches,medication-overuse headaches,and migraines)and dementias that include Alzheimer’s disease,are among the most prevalent and debilitating global conditions.In 2016,these disorders affected 276 million people worldwide and were the second leading cause of death that year[1].This highlights the urgent need for effective prevention,treatment,and support strategies.The etiology of neurological disorders is multifaceted and involves genetic,environmental,physiological,and social factors[2]. 展开更多
关键词 prevention ALZHEIMER DEATH
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唐菖蒲伯克霍尔德菌椰毒致病变种污染调查及病原特征分析 被引量:1
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作者 杨慧 王猛 +4 位作者 李冯 洪敏丽 徐李清 杜文旗 金玉娟 《中国食品卫生杂志》 北大核心 2025年第3期207-215,共9页
目的研究木耳、银耳、米/河粉等食品受唐菖蒲伯克霍尔德菌椰毒致病变种的污染情况,阐明所分离唐菖蒲伯克霍尔德菌椰毒致病变种的病原特征。方法按照GB 4789.29—2020,对7种食品共650份样品进行了培养,采用实时荧光定量PCR法检测bon基因... 目的研究木耳、银耳、米/河粉等食品受唐菖蒲伯克霍尔德菌椰毒致病变种的污染情况,阐明所分离唐菖蒲伯克霍尔德菌椰毒致病变种的病原特征。方法按照GB 4789.29—2020,对7种食品共650份样品进行了培养,采用实时荧光定量PCR法检测bon基因簇,参照GB 5009.189—2016检测米酵菌酸,使用基因组测序分析唐菖蒲伯克霍尔德菌椰毒致病变种病原特征。结果从650份样品中检出26株唐菖蒲伯克霍尔德菌椰毒致病变种,其中木耳中检出22株,检出率为15.71%。唐菖蒲伯克霍尔德菌椰毒致病变种菌株均携带bon基因簇和tox基因簇,基因簇中各基因在菌株之间具有高度相似度。耐药性分析显示所有菌株均携带有ceoA、ceoB和opcM这3个抗生素抗性基因。系统发育进化分析表明,分离得到的毒株与NCBI数据库中唐菖蒲伯克霍尔德菌椰毒致病变种位于相同的进化分支,未发现显著突变。每个基因组包含167~184个碳水化合物代谢相关基因,且均具有完整的纤维素、几丁质、淀粉等多糖的完整代谢通路。结论木耳易被唐菖蒲伯克霍尔德菌椰毒致病变种污染,需加强对木耳中该致病菌的风险监测。 展开更多
关键词 唐菖蒲伯克霍尔德菌椰毒致病变种 米酵菌酸 风险监测 木耳 基因组
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深圳市幼儿园和学校2017—2023年呼吸道合胞病毒聚集性疫情监测结果
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作者 王昕 房师松 +4 位作者 武伟华 刘慧 孙颖 邹旋 唐秀娟 《中国学校卫生》 北大核心 2025年第3期435-437,442,共4页
目的分析2017—2023年深圳市幼儿园和学校呼吸道合胞病毒聚集性疫情监测结果及流行特点,为呼吸道合胞病毒防控提供科学参考。方法收集和分析深圳市幼儿园和学校2017—2023年呼吸道合胞病毒聚集性疫情监测的流行病学资料和实验室检测结... 目的分析2017—2023年深圳市幼儿园和学校呼吸道合胞病毒聚集性疫情监测结果及流行特点,为呼吸道合胞病毒防控提供科学参考。方法收集和分析深圳市幼儿园和学校2017—2023年呼吸道合胞病毒聚集性疫情监测的流行病学资料和实验室检测结果。结果2017—2023年深圳市共确诊31起发生在幼儿园和学校的呼吸道合胞病毒聚集性疫情,2020年疫情数最多为14起,其次是2023年8起;发病总人数为346名,平均罹患率为22.02%。64.52%的呼吸道合胞病毒疫情发生在幼儿园,其余均发生在中小学校。呼吸道合胞病毒疫情报告最多的月份是9月(18起,占58.06%),其次是3和10月(均为3起,占9.68%)。在31起呼吸道合胞病毒疫情中共采集244份咽拭子样本,经检测呼吸道病毒阳性169份,阳性率为69.26%;其中呼吸道合胞病毒阳性121份,其他呼吸道病毒阳性57份(9份为2种病毒均阳性)。31起呼吸道合胞病毒疫情中,14起由呼吸道合胞病毒单独引起(占45.16%),17起由呼吸道合胞病毒和其他呼吸道病毒混合感染引起(占54.84%)。结论深圳市幼儿园和学校在2020年以后报告较多的呼吸道合胞病毒聚集性疫情,其中多发生在幼儿园,高发季节是秋季和春季。 展开更多
关键词 呼吸道合胞病毒 疾病暴发流行 发病率 人群监测 儿童 学龄前
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深圳地区献血者丙氨酸氨基转移酶检测结果分析及阈值调整策略的探讨 被引量:1
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作者 郑欣 薛原野 +7 位作者 王皓飚 伍立桃 李然 党英男 陈婷婷 许晓绚 曾雪珍 曾劲峰 《中国输血杂志》 2025年第4期488-494,共7页
目的通过回顾性统计对比献血者采血前丙氨酸氨基转移酶(ALT)检测值,分析献血者ALT不合格(ALT>50 U/L)的人群客观特征,为ALT筛查合格阈值调整提供参考数据。方法抽取深圳市血液中心2022—2023年度3个智慧捐血点的30341人次献血者献血... 目的通过回顾性统计对比献血者采血前丙氨酸氨基转移酶(ALT)检测值,分析献血者ALT不合格(ALT>50 U/L)的人群客观特征,为ALT筛查合格阈值调整提供参考数据。方法抽取深圳市血液中心2022—2023年度3个智慧捐血点的30341人次献血者献血前ALT初筛数据,与之对比的数据来自深圳地区某三甲医院体检科(即普通人群,n=24906),两者进行分类统计描述。回顾性分析了献血者的性别、年龄、民族,及捐血点、献血季节、献血次数等因素与ALT检测结果的关系。结果献血者与普通人群2组人群的ALT为非正态分布,献血者和普通人群的ALT检测值的95%百分位数分别是61.4 U/L(男性67.8U/L、女性39.3 U/L)和58.1 U/L(男性63.7 U/L、女性51.2 U/L)。2组人群ALT>50 U/L的不合格率分别是7.65%(2321/30341)和7.08%(1763/24906)。献血者中,ALT不合格率在性别、年龄、捐献点上有显著性差异(P<0.05),在献血季节上无显著差异(P>0.05)。ALT不合格者和合格者的血筛病原体四项(HBsAg、抗-HCV、HIV Ag/Ab、抗-TP)血清学标志物阳性率(2.05%vs 1.5%)无统计学显著差异(P>0.05)。如果把ALT合格阈值由50 U/L上调至90 U/L,男性和女性献血者不合格率分别从9.82%(2074/21125)下降至2.23%(471/21125)以及从2.70%(249/9216)下降至0.75%(69/9216)。献血3次以上的154名献血者的248次ALT不合格的检测数值有88.31%在50~90 U/L范围,其中9例ALT>130 U/L者,在后续的献血中ALT均转为合格。结论不同性别、年龄的献血者ALT不合格率有差异,不同献血点位及操作者也会影响献血者ALT检测值;献血者ALT不合格绝大多数为短暂性且非病理性因素引起,在血液病毒核酸普遍开展情况下,适当提高献血者ALT合格阈值可扩大献血者合格人群,缓解血源紧张状况,且血液安全风险不会升高。 展开更多
关键词 无偿献血者 丙氨酸氨基转移酶 血液筛查 差异对比 分析
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TINCR-MAF:MAFB转录因子网络对人角质形成细胞增殖和分化的影响
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作者 郑锦芬 石翠萍 +6 位作者 凌云霞 张德华 翟倩玉 朱李佳 蒋豆蔻 王小红 赖永珲 《实用医学杂志》 北大核心 2025年第4期509-514,共6页
目的探讨TINCR-MAF:MAFB转录因子网络对角质形成细胞中增殖和分化相关基因表达的影响,以验证该网络在银屑病发生发展中的作用及其潜在机制。方法采用RNA干扰技术敲除TINCR基因表达,利用CCK-8法检测角质形成细胞的增殖能力。同时,通过qRT... 目的探讨TINCR-MAF:MAFB转录因子网络对角质形成细胞中增殖和分化相关基因表达的影响,以验证该网络在银屑病发生发展中的作用及其潜在机制。方法采用RNA干扰技术敲除TINCR基因表达,利用CCK-8法检测角质形成细胞的增殖能力。同时,通过qRT-PCR和Western blot分析TINCR、MAFB及KLF4基因的RNA和蛋白表达水平。采用免疫组化方法检测正常皮肤与银屑病组织中分化相关基因KLF4蛋白的表达情况。结果TINCR基因siRNA干扰后,角质形成细胞在24、48和72 h内的增殖能力显著降低(P<0.001),表明TINCR基因对细胞增殖具有关键作用。qRT-PCR和Western blot分析结果显示,TINCR、MAFB和KLF4基因的RNA和蛋白表达均显著降低(P<0.001),提示TINCR可能通过调控MAFB转录因子及KLF4分化相关基因的表达影响角质形成细胞的分化。此外,免疫组化结果显示,与正常皮肤组织相比,银屑病组织中KLF4蛋白的表达显著升高,提示KLF4在银屑病的发生机制中发挥重要作用。结论TINCR-MAF:MAFB转录因子网络可能通过影响角质形成细胞的增殖和分化参与银屑病的发生与发展。这一发现为银屑病的发病机制提供了新的视角,并为未来的治疗策略提供了潜在靶点。 展开更多
关键词 银屑病 TINCR MAF MAFB KLF4
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腹腔多发性细粒棘球蚴病1例及其病原分子生物学鉴定
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作者 陈亿雄 王梓琪 +5 位作者 刘金凤 王超 张晟 任萌 陈清凉 高世同 《中国热带医学》 北大核心 2025年第2期217-221,共5页
目的 了解广东省深圳市1例腹腔多发性细粒棘球蚴病病例的临床特点,并进行病原分子生物学鉴定,为棘球蚴病防治提供依据。方法 收集2024年1月深圳市1例棘球蚴病病例的临床和流行病学资料;对病例手术摘除的包囊组织进行病理切片,染色后镜检... 目的 了解广东省深圳市1例腹腔多发性细粒棘球蚴病病例的临床特点,并进行病原分子生物学鉴定,为棘球蚴病防治提供依据。方法 收集2024年1月深圳市1例棘球蚴病病例的临床和流行病学资料;对病例手术摘除的包囊组织进行病理切片,染色后镜检;提取囊组织样品核酸,采用聚合酶链反应(PCR)扩增线粒体NADH脱氢酶亚基1基因(NADH dehydrogenase subunit 1, ND1)、线粒体细胞色素C氧化酶1基因(mitochondria cytochrome C oxidase subunit 1, Cox1)基因序列并进行测序,使用Mega X、BLAST等软件进行序列比对及系统进化树分析。结果 患者男,29岁,西藏自治区那曲市居民,有家犬接触史及“肝棘球蚴病”病史。影像学提示腹腔多发性占位,考虑棘球蚴病复发;手术摘除腹腔不同部位囊性病变组织12块,囊组织病理切片可见棘球蚴的角质层、生发层和原头蚴。细粒棘球蚴特异性基因ND1和Cox1 PCR扩增阳性,扩增片段大小分别约为510 bp与285 bp。序列比对及系统进化树分析结果显示本研究序列与GenBank数据库中细粒棘球蚴G1型ND1基因(青海JX217890.1株),Cox1基因(西藏MH050610.1株)的同源性为99%,在系统进化树中与西藏、青海及新疆等地区细粒棘球蚴流行株亲缘关系接近,处于同一进化分支(G1型)。结论 患者为1例腹腔多发性细粒棘球蚴病输入病例,基因分型为G1型,感染来源于西藏可能性大。非流行区应提升对本病的监测和管理水平,加强对流行区输入的牲畜、农副产品的检验检疫,防止棘球蚴病疫情扩散。 展开更多
关键词 细粒棘球蚴病 基因型 系统进化树分析 Cox1基因 ND1基因
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