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Endoplasmic reticulum stress and autophagy in cerebral ischemia/reperfusion injury:PERK as a potential target for intervention

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Neural Regeneration Research 2025年第5期20卷 1455-1466页

作者： Ju Zheng Yixin Li Ting Zhang Yanlin Fu Peiyan Long Xiao Gao Zhengwei Wang Zhizhong Guan Xiaolan Qi Wei Hong Yan Xiao Key Laboratory of Endemic and Ethnic diseases Ministry of Education&Key Laboratory of Medical Molecular Biology of Guizhou ProvinceGuizhou Medical UniversityGuiyangGuizhou ProvinceChina Guizhou center for disease control and prevention GuiyangGuizhou ProvinceChina Department of Histology and Embryology Guizhou Medical UniversityGuiyangGuizhou ProvinceChina Collaborative Innovation center for prevention and control of Endemic and Ethnic Regional diseases Co-constructed by the Province and Ministry GuiyangGuizhou ProvinceChina

Several studies have shown that activation of unfolded protein response and endoplasmic reticulum(ER)stress plays a crucial role in severe cerebral ischemia/reperfusion *** occurs within hours after cerebral ischemia,but the relationship between ER stress and autophagy remains *** this study,we established experimental models using oxygen-glucose deprivation/reoxygenation in PC12 cells and primary neurons to simulate cerebral ischemia/reperfusion *** found that prolongation of oxygen-glucose deprivation activated the ER stress pathway protein kinase-like endoplasmic reticulum kinase(PERK)/eukaryotic translation initiation factor 2 subunit alpha(e IF2α)-activating transcription factor 4(ATF4)-C/EBP homologous protein(CHOP),increased neuronal apoptosis,and induced ***,inhibition of ER stress using inhibitors or by si RNA knockdown of the PERK gene significantly attenuated excessive autophagy and neuronal apoptosis,indicating an interaction between autophagy and ER stress and suggesting PERK as an essential target for regulating *** autophagy with chloroquine exacerbated ER stress-induced apoptosis,indicating that normal levels of autophagy play a protective role in neuronal injury following cerebral ischemia/reperfusion *** from this study indicate that cerebral ischemia/reperfusion injury can trigger neuronal ER stress and promote autophagy,and suggest that PERK is a possible target for inhibiting excessive autophagy in cerebral ischemia/reperfusion injury.

关键词： apoptosis ATF4 autophagy C/EBP homologous protein cerebral ischemia/reperfusion injury eIF2α endoplasmic reticulum stress PERK

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Approach from the laboratory to the field: New strategies in the control of mosquito-borne infectious diseases

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Science China Life Sciences 2025年第01期 303-305页

作者： Ziqian Xu Lianpan Dai Jun Liu National Key Laboratory of Intelligent Tracking and Forecasting for Infectious diseases (NITFID) National Institute for Viral Disease Control and PreventionChinese Center for Disease Control and Prevention CAS Key Laboratory of Pathogen Microbiology and Immunology Institute of MicrobiologyChinese Academy of Sciences

Vector-borne viruses, transmitted among humans and animal hosts through bites of vectors such as mosquitoes and ticks,pose a great and ongoing threat to public health and biosafety(Yang et al., 2022).Among them, dengue virus-induced epidemics, have dramatically increased worldwide in recent decades. The report released by the World Health Organization(WHO) at the end of 2023 showed that dengue epidemic globally surged in2023, with the number of reported cases nearing a historical peak.

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Pollution of HCHs,DDTs and PCBs in tidal flat of Hangzhou Bay 2009–2013

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Chinese Journal of Oceanology and Limnology 2016年第3期34卷 539-548页

作者：赵鹏龚文杰毛国华李继革徐奋奋施家威 Jiangbei center for disease control and prevention Ningbo Cixi center for disease control and prevention Ningbo Ningbo Municipal center for disease control and prevention Ningbo

The concentration and distribution of three persistent organic pollutants （hexachlorocyclohexanes （HCHs）, dichlorodiphenyltrichloroethanes （DDTs） and polyehlorinated biphenyls （PCBs）） was assessed in tidal fiat sediments collected from the south bank of Hangzhou Bay, China from 2009 to 2013. Gas chromatography coupled to triple quadrupole mass spectrometry （GC-MS/MS） was used for analysis, based on United States Environmental Protection Agency methods EPAS080A, EPA8081B, and EPA3550B. The results showed that the levels of HCHs, DDTs and PCBs decreased in the order of DDTs 〉 HCHs 〉 PCBs, and their mass fractions ranged from 0.29-32.91, 0.09-13.19 and 0.16-4.10 ktg/kg （dry mass）, respectively. The levels of HCHs, DDTs and PCBs decreased slowly from 2009 to 2013, with considerably greater concentrations in winter than in spring and summer. In this study area, the concentrations of DDTs and HCHs decreased gradually towards the mouth of Hangzhou Bay, while the concentrations of PCBs were related to changes in the local economy. In addition, the sources of HCHs and DDTs were identified as atmospheric precipitation and historical residues, Finally, we predicted that PCBs pollution primarily originated from Aroclor 1254（Lot A4）, which might root in the illegal demolition and stacking of abandoned paint, transformer or electronic equipment in the south bank of Hangzhou Bay.

关键词： South Bank of Hangzhou Bay sediment hexachlorocyclohexanes (HCHs) dichlorodiphenyltrichloroethanes (DDTs) polychlorinated biphenyls (PCBs)

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Survival and proliferation of the lysogenic bacteriophage CTXΦ in Vibrio cholerae

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Virologica Sinica 2015年第1期30卷 19-25页

作者： Fenxia Fan Biao Kan State Key Laboratory for Infectious disease prevention and control National Institute for Communicable Disease Control and Prevention Chinese Center for Disease Control and Prevention

The lysogenic phage CTXΦ of Vibrio cholerae can transfer the cholera toxin gene both horizontally(inter-strain) and vertically(cell proliferation). Due to its diversity in form and species, the complexity of regulatory mechanisms, and the important role of the infection mechanism in the production of new virulent strains of ***, the study of the lysogenic phage CTXΦ has attracted much attention. Based on the progress of current research, the genomic features and their arrangement, the host-dependent regulatory mechanisms of CTXΦ phage survival, proliferation and propagation were reviewed to further understand the phage's role in the evolutionary and epidemiological mechanisms of V. cholerae.

关键词： Vibrio cholerae lysogenic bacteriophage CTXΦ regulation evolution

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Emergency Response for a Laboratory Biosafety Incident

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Biomedical and Environmental Sciences 2019年第3期32卷 231-233页

作者： ZHANG En Min WANG Jia Qi GAO Li Dong ZHAN Zhi Fei ZHANG Heng HU Yan Hong WEI Jian Chun LIANG Xu Dong WAN Kang Lin WEI Qiang National Institute for Communicable disease control and prevention Chinese Center for Disease Control and Prevention/State Key Laboratory for Infectious Disease Prevention and Control Chinese center for disease control and prevention Hunan Provincial center for disease control and prevention Changsha center for disease control and prevention Yuelu District center for disease control and prevention

On December 14, 2017, a faculty member of a university in Hunan Province reported that an anthrax vaccine strain might have recovered virulence during an undergraduate experiment and potential exposure could not be ruled out for the students involved. Upon receiving the case report, the CDC, health bureaus, and local governments at the county, prefectural, and provincial levels promptly organized experts in different fields (including epidemiologists, biosafety experts, and laboratory testing experts) for case investigation, evaluation, and response. As the investigation results showed, no virulence recovery was identified in the involved anthrax vaccine strain;and no contamination of Bacillus anthracis was detected at the involved areas. Thus, the university returned to normal functioning.

关键词： Emergency Response Laboratory Biosafety Incident

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Pulmonary Heart disease Associated Mortality—China,2014–2021

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China CDC weekly 2023年第35期5卷 779-784页

作者： Yangyang Xu Zhe Liu Jinlei Qi Lijun Wang Maigeng Zhou Peng Yin National center for Chronic and Noncommunicable disease control and prevention Chinese Center for Disease Control and PreventionBeijingChina

Introduction:Over the latter half of the previous century,pulmonary heart disease(PHD)emerged as a significant public health issue in ***,the current mortality rate is *** the Multiple Cause of Death database,the present study aims to investigate the current state and progression of PHD-associated death in ***:Data from the China National Mortality Surveillance System were used to analyze progression in mortality rates attributable to PHD from 2014 to *** standardize population structure for each year during the investigation period,demographic information from the 2020 census was employed as the reference *** mortality rates(ASMR)were determined based on sex,urban-rural area,and *** identify trends in ASMR,a joinpoint regression analysis was ***:The ASMR of PHD exhibited a marked decrease,falling from 61.68 per 100,000 in 2014 to 28.53 per 100,000 in *** downward trend was observable in both genders,all regions,and both urban and rural *** greatest ASMR values were documented in the western *** observations revealed a higher ASMR in rural areas versus urban ones and in males versus *** deaths predominantly occurred among older individuals,particularly those aged 80 and *** obstructive pulmonary disease(COPD)emerged as the principal underlying cause of death PHD-associated mortalities,accounting for between 87.41%and 93.42%of cases throughout the period 2014–***:There was a declining trend in PHD mortality in China from 2014 to 2021,with COPD accounting for a significant proportion of these *** the high prevalence of COPD and the escalating population aging in China,PHD remains a significant health concern that warrants further attention.

关键词： latter downward urban

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The Emergence, Epidemiology, and Etiology of Haff disease

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Biomedical and Environmental Sciences 2019年第10期32卷 769-778页

作者： PEI Pei LI Xiao Yan LU Shuang Shuang LIU Zhe WANG Rui LU Xuan Cheng LU Kai Chinese center for disease control and prevention

Haff disease is a type of human rhabdomyolysis characterized by the sudden onset of unexplained muscular rigidity and an elevated serum creatine kinase level within 24 h after consuming cooked aquatic products. Here, we reviewed a previous study on Haff disease and summarized the clinical manifestations,epidemiological characteristics, and etiological data to confirm the incidence and global epidemiology of the disease and identify the most common seafood vectors. Future directions for Haff disease study will include further prospective etiological studies and the development of prevention and control strategies.

关键词： Rhabdomyolysis Seafood Haff disease Crayfish Epidemiology

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Atmospheric radionuclides from Fukushima Dai-ichi nuclear accident detected in Lanzhou, China

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Nuclear Science and Techniques 2015年第4期26卷 115-120页

作者：邬家龙王赟孙卫罗伟立王延俊张飙 Gansu center for disease prevention and control

After the Fukushima Dai-ichi nuclear power plant accident on March 11,2011,the radioactivity released from the accident was transported around the globe by atmospheric *** radioactivity monitoring program on atmospheric particulate in Lanzhou,China was activated by GSCDC to detect the input radionuclides through atmospheric *** artificial radionuclides were detected and measured in aerosol samples from March 26 to May 2,*** peaked activity concentrations(in m Bq/m3)were:1.194(131I),0.231(137Cs),0.173(134Cs)and 0.008(136Cs),detected on April 6,*** average activity ratio of131I/137Cs and134Cs/137Cs in air were 13.5 and *** significant increase of137Cs activity concentration,one order of magnitude higher than pre-Fukushima accident levels,in ground level aerosol was observed in 2013,as its resuspension from *** back-trajectory analysis simulated by NOAA-ARL HYSPLIT shows a direct transfer of the air masses released from Fukushima to Lanzhou across the Pacific Ocean,North America and Europe at the height close to 9000 m *** value of effective dose for inhalation is close to one millionth of the annual limit for the general public.

关键词：人工放射性核素事故检测大气过程兰州中国 137Cs 核电站事故大气颗粒物

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Genetic Diversity and Drug Susceptibility of Mycobacterium tuberculosis Isolates in a Remote Mountain Area of China

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Biomedical and Environmental Sciences 2018年第5期31卷 351-362页

作者： ma ai jing wang sheng fen fan jia le zhao bing he guang xue zhao yan lin national institute for communicable disease control and prevention chinese center for disease control and preventionBeijing 102206China national center for tb control and prevention chinese center for disease control and preventionBeijing 102206China science and technology department chinese center for disease control and preventionBeijing 102206China

Objective We determined the genetic diversity of Mycobacterium tuberculosis（MTB） in a remote mountainous area of southwest China and evaluated the resolving ability of single nucleotide polymorphism（SNP） genotyping combined with variable number tandem repeat（VNTR） genotyping for Beijing family strains in association with drug resistance *** Three hundred thirty-one MTB strains were isolated from patients living in mountainous regions of southwest China,and 8-loci SNP,VNTR-15 genotyping assays,and drug susceptibility testing of 9 drugs were *** A total of 183 [55.29%（183/331）] strains were classified into the Beijing *** the 183 strains,111（60.66%） were defined as modern Beijing *** most predominant modern Beijing sub-lineage and ancient Beijing sub-lineage were Bmyc10 [39.34%（72/183）] and Bmyc25 [20.77%（38/183）],*** the isolates,19.64%（65/331） were resistant to at least 1 of the 9 anti-TB drugs and 17 [4.98%（17/331）] MTB isolates were multi-drug resistant tuberculosis（MDR-TB）.Two hundred sixty-one isolates showed a clustering rate of 14.18%（37/261） and a discriminatory index of *** Beijing lineage exhibited a significantly higher prevalence of MDR-TB,as well as resistance to isoniazid（INH）,rifampin（RIF）,and para-aminosalicylic acid（PAS） when analyzed independently（P = 0.005,P = 0.017,P = 0.014,and P = 0.006 respectively）.The Beijing lineage was not associated with genetic clustering or resistance to any *** addition,genetic clustering was not associated with drug *** MTB strains demonstrate high genetic diversity in remote mountainous areas of southwest *** strains,especially modern Beijing strains,are predominant in remote mountainous area of *** combination of 8-loci SNPs and VNTR-15 genotyping is a useful tool to study the molecular epidemiology of MTB strains in this area.

关键词： Mycobacterium tuberculosis Beijing strains Variable number tandem repeat (VNTR) Singlenucleotide polymorphism (SNP)

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Estimating the Health and Economic Outcomes of the prevention of Mother-to-child Transmission of HIV Using a Decision Tree Model

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Biomedical and Environmental Sciences 2019年第1期32卷 68-74页

作者： QU Shui Ling WANG Ai Ling PAN Xiao Ping WANG Qian DOU Li Xia ZHANG Tong National center for Women and Children's Health Chinese center for disease control and prevention Chinese center for disease control and prevention

In 2016, there were 17.8 million (15.4-20.3 million) women living with HIV/AIDS across the world and the prevalence of reproductive desire among this group was 26%-49%[1]. If pregnant women living with HIV/AIDS are left untreated, the rates of HIV transmission from mother-to-child would range from 14% to 48%, depending on the presence and duration of breastfeeding[2].

关键词： The AIDS virus HIV Mother-to-child transmission (PMTCT)

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