1.Molecular epidemiology and genetic characteristics of human metapneumovirus in Suzhou
Xuan YUAN ; Zefeng DONG ; Zhihui XU ; Xuerong YA ; Qiang SHEN
Chinese Journal of Microbiology and Immunology 2025;45(10):826-831
Objective:To analyze the epidemiological characteristics of human metapneumovirus(hMPV)in respiratory samples from patients in Suzhou,China,and investigate the results of whole-genome sequencing,so as to provide scientific evidence for a deeper understanding of its genetic diversity and the development of preventive measures.Methods:In this study,1 340 influenza-like illness(ILI)samples and 970 severe acute respiratory infection(SARI)samples were collected from two sentinel hospitals in Suzhou in 2024. Nucleic acid detection was performed using a multiplex real-time fluorescence PCR method. For hMPV-positive samples,whole-genome sequencing was conducted on the Illumina Miseq platform. Mutations,insertions,deletions,and other variations were identified using the pathogenic virus whole-genome analysis system. A phylogenetic tree was constructed by the Maximum Likelihood method for lineage analysis.Results:Among 2 310 respiratory samples,the overall hMPV positivity rate was 1.69%(39/2 310),with positivity rates of 1.27%(17/1 340)in ILI samples and 2.27%(22/970)in SARI samples. No statistically significant difference was observed between the two groups( P>0.05). The proportion of mixed infections in hMPV-positive samples was 46.15%(18/39),with mixed infection rates of 23.53%(4/17)in the ILI group and 63.64%(14/22)in the SARI group. In terms of temporal distribution,the peak period of hMPV infection primarily concentrated in January and December. The whole genomes of 13 hMPV strains were successfully obtained,and 554 missense mutations were identified in the coding region,with particularly significant variations observed in the G gene region. Phylogenetic analysis revealed that 4 strains belonged to the A2b2 subtype,while 9 strains belonged to the B2 subtype. Conclusions:In Suzhou,hMPV exhibits a relatively balanced distribution between ILI and SARI clinical groups,with infection peaks mainly occurring in winter and a high proportion of mixed infections. The predominant circulating strain is the B2 subtype,and its genome shows significant genetic variation,particularly in the G gene region.
2.The systemic inflammatory response index as a risk factor for all-cause and cardiovascular mortality among individuals with coronary artery disease: evidence from the cohort study of NHANES 1999-2018.
Dao-Shen LIU ; Dan LIU ; Hai-Xu SONG ; Jing LI ; Miao-Han QIU ; Chao-Qun MA ; Xue-Fei MU ; Shang-Xun ZHOU ; Yi-Xuan DUAN ; Yu-Ying LI ; Yi LI ; Ya-Ling HAN
Journal of Geriatric Cardiology 2025;22(7):668-677
BACKGROUND:
The association of systemic inflammatory response index (SIRI) with prognosis of coronary artery disease (CAD) patients has never been investigated in a large sample with long-term follow-up. This study aimed to explore the association of SIRI with all-cause and cause-specific mortality in a nationally representative sample of CAD patients from United States.
METHODS:
A total of 3386 participants with CAD from the National Health and Nutrition Examination Survey (NHANES) 1999-2018 were included in this study. Cox proportional hazards model, restricted cubic spline (RCS), and receiver operating characteristic curve (ROC) were performed to investigate the association of SIRI with all-cause and cause-specific mortality. Piece-wise linear regression and sensitivity analyses were also performed.
RESULTS:
During a median follow-up of 7.7 years, 1454 all-cause mortality occurred. After adjusting for confounding factors, higher lnSIRI was significantly associated with higher risk of all-cause (HR = 1.16, 95% CI: 1.09-1.23) and CVD mortality (HR = 1.17, 95% CI: 1.05-1.30) but not cancer mortality (HR = 1.17, 95% CI: 0.99-1.38). The associations of SIRI with all-cause and CVD mortality were detected as J-shaped with threshold values of 1.05935 and 1.122946 for SIRI, respectively. ROC curves showed that lnSIRI had robust predictive effect both in short and long terms.
CONCLUSIONS
SIRI was independently associated with all-cause and CVD mortality, and the dose-response relationship was J-shaped. SIRI might serve as a valid predictor for all-cause and CVD mortality both in the short and long terms.
3.Independent and Interactive Effects of Air Pollutants, Meteorological Factors, and Green Space on Tuberculosis Incidence in Shanghai.
Qi YE ; Jing CHEN ; Ya Ting JI ; Xiao Yu LU ; Jia le DENG ; Nan LI ; Wei WEI ; Ren Jie HOU ; Zhi Yuan LI ; Jian Bang XIANG ; Xu GAO ; Xin SHEN ; Chong Guang YANG
Biomedical and Environmental Sciences 2025;38(7):792-809
OBJECTIVE:
To assess the independent and combined effects of air pollutants, meteorological factors, and greenspace exposure on new tuberculosis (TB) cases.
METHODS:
TB case data from Shanghai (2013-2018) were obtained from the Shanghai Center for Disease Control and Prevention. Environmental data on air pollutants, meteorological variables, and greenspace exposure were obtained from the National Tibetan Plateau Data Center. We employed a distributed-lag nonlinear model to assess the effects of these environmental factors on TB cases.
RESULTS:
Increased TB risk was linked to PM 2.5, PM 10, and rainfall, whereas NO 2, SO 2, and air pressure were associated with a reduced risk. Specifically, the strongest cumulative effects occurred at various lags: PM 2.5 ( RR = 1.166, 95% CI: 1.026-1.325) at 0-19 weeks; PM 10 ( RR = 1.167, 95% CI: 1.028-1.324) at 0-18 weeks; NO 2 ( RR = 0.968, 95% CI: 0.938-0.999) at 0-1 weeks; SO 2 ( RR = 0.945, 95% CI: 0.894-0.999) at 0-2 weeks; air pressure ( RR = 0.604, 95% CI: 0.447-0.816) at 0-8 weeks; and rainfall ( RR = 1.404, 95% CI: 1.076-1.833) at 0-22 weeks. Green space exposure did not significantly impact TB cases. Additionally, low temperatures amplified the effect of PM 2.5 on TB.
CONCLUSION
Exposure to PM 2.5, PM 10, and rainfall increased the risk of TB, highlighting the need to address air pollutants for the prevention of TB in Shanghai.
China/epidemiology*
;
Humans
;
Air Pollutants/analysis*
;
Tuberculosis/epidemiology*
;
Incidence
;
Meteorological Concepts
;
Particulate Matter/adverse effects*
;
Environmental Exposure
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Male
;
Female
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Adult
;
Air Pollution
;
Middle Aged
4.Association of Body Mass Index with All-Cause Mortality and Cause-Specific Mortality in Rural China: 10-Year Follow-up of a Population-Based Multicenter Prospective Study.
Juan Juan HUANG ; Yuan Zhi DI ; Ling Yu SHEN ; Jian Guo LIANG ; Jiang DU ; Xue Fang CAO ; Wei Tao DUAN ; Ai Wei HE ; Jun LIANG ; Li Mei ZHU ; Zi Sen LIU ; Fang LIU ; Shu Min YANG ; Zu Hui XU ; Cheng CHEN ; Bin ZHANG ; Jiao Xia YAN ; Yan Chun LIANG ; Rong LIU ; Tao ZHU ; Hong Zhi LI ; Fei SHEN ; Bo Xuan FENG ; Yi Jun HE ; Zi Han LI ; Ya Qi ZHAO ; Tong Lei GUO ; Li Qiong BAI ; Wei LU ; Qi JIN ; Lei GAO ; He Nan XIN
Biomedical and Environmental Sciences 2025;38(10):1179-1193
OBJECTIVE:
This study aimed to explore the association between body mass index (BMI) and mortality based on the 10-year population-based multicenter prospective study.
METHODS:
A general population-based multicenter prospective study was conducted at four sites in rural China between 2013 and 2023. Multivariate Cox proportional hazards models and restricted cubic spline analyses were used to assess the association between BMI and mortality. Stratified analyses were performed based on the individual characteristics of the participants.
RESULTS:
Overall, 19,107 participants with a sum of 163,095 person-years were included and 1,910 participants died. The underweight (< 18.5 kg/m 2) presented an increase in all-cause mortality (adjusted hazards ratio [ aHR] = 2.00, 95% confidence interval [ CI]: 1.66-2.41), while overweight (≥ 24.0 to < 28.0 kg/m 2) and obesity (≥ 28.0 kg/m 2) presented a decrease with an aHR of 0.61 (95% CI: 0.52-0.73) and 0.51 (95% CI: 0.37-0.70), respectively. Overweight ( aHR = 0.76, 95% CI: 0.67-0.86) and mild obesity ( aHR = 0.72, 95% CI: 0.59-0.87) had a positive impact on mortality in people older than 60 years. All-cause mortality decreased rapidly until reaching a BMI of 25.7 kg/m 2 ( aHR = 0.95, 95% CI: 0.92-0.98) and increased slightly above that value, indicating a U-shaped association. The beneficial impact of being overweight on mortality was robust in most subgroups and sensitivity analyses.
CONCLUSION
This study provides additional evidence that overweight and mild obesity may be inversely related to the risk of death in individuals older than 60 years. Therefore, it is essential to consider age differences when formulating health and weight management strategies.
Humans
;
Body Mass Index
;
China/epidemiology*
;
Male
;
Female
;
Middle Aged
;
Prospective Studies
;
Rural Population/statistics & numerical data*
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Aged
;
Follow-Up Studies
;
Adult
;
Mortality
;
Cause of Death
;
Obesity/mortality*
;
Overweight/mortality*
5.Angelicae Dahuricae Radix polysaccharides treat ulcerative colitis in mice by regulating gut microbiota and metabolism.
Feng XU ; Lei ZHU ; Ya-Nan LI ; Cheng CHENG ; Yuan CUI ; Yi-Heng TONG ; Jing-Yi HU ; Hong SHEN
China Journal of Chinese Materia Medica 2025;50(4):896-907
This study employed 16S r RNA gene high-throughput sequencing and metabolomics to explore the mechanism of Angelicae Dahuricae Radix polysaccharides(RP) in the treatment of ulcerative colitis(UC). A mouse model of UC was induced with 2. 5% dextran sulfate sodium. The therapeutic effects of RP on UC in mice were evaluated based on changes in body weight, disease activity index( DAI), and colon length, as well as pathological changes. RT-qPCR was performed to assess the m RNA levels of interleukin(IL)-6, IL-1β, tumor necrosis factor(TNF)-α, myeloperoxidase(MPO), mucin 2(Muc2), Occludin, Claudin2, and ZO-1 in the mouse colon tissue. ELISA was employed to measure the expression of IL-1β and TNF-α in the colon tissue. The intestinal permeability of mice was evaluated by the fluorescent dye permeability assay. Immunohistochemistry was employed to detect the expression of Muc2 and occludin in the colon tissue. Changes in gut microbiota and metabolites were analyzed by 16S r RNA sequencing and ultra-high-performance liquid chromatography coupled with quadrupole-orbitrap mass spectrometry( UPLC-Q-Exactive Plus Orbitrap MS), respectively. The results indicated that low-dose RP alleviated general symptoms, reduced colonic inflammation and intestinal permeability, and promoted Muc2 secretion and tight junction protein expression in UC mice. In addition, low-dose RP increased gut microbiota diversity in UC mice and decreased the relative abundance of harmful bacteria such as Ochrobactrum and Streptococcus. Twenty-seven differential metabolites were identified in feces, and low-dose RP restored the levels of disturbed metabolites. Notably, arginine and proline metabolism were the most significantly altered amino acid metabolic pathways following lowdose RP intervention. In conclusion, RP can ameliorate general symptoms, inhibit colonic inflammation, and maintain intestinal mucosal barrier integrity in UC mice by modulating gut microbiota composition and arginine and proline metabolism.
Animals
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Gastrointestinal Microbiome/drug effects*
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Colitis, Ulcerative/genetics*
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Mice
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Male
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Drugs, Chinese Herbal/administration & dosage*
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Polysaccharides/administration & dosage*
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Angelica/chemistry*
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Humans
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Colon/metabolism*
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Disease Models, Animal
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Mucin-2/metabolism*
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Tumor Necrosis Factor-alpha/metabolism*
6.Prevention strategies for unplanned extubation of nasogastric tube in adult inpatients:a summary on best evidences
Meixuan SONG ; Linxia XU ; Yuqin ZOU ; Shan ZHAO ; Ya SHEN ; Qidan HE ; Juan WU ; Xianrong LI
Modern Clinical Nursing 2025;24(10):74-82
Objective To search,evaluate and synthesise the best available evidence on prevention strategies for unplanned extubation of nasogastric tube in adult inpatients and to offer a reference in management of safety and efficiency.Methods Literature on prevention strategies for unplanned extubation of nasogastric tube in adult inpatients was retrieved across BMJ Best Practice,UpToDate,JBI Center for Evidence Based Healthcare International Collaboration Library,Medlive,US National Guidelines Database,International Guidelines Collaboration Group,Scottish InterAcademy Guidelines Network,Ontario Registered Nurses Association of Canada,UK National Institute for Clinical Optimization,New Zealand Guidelines Research Group,PubMed,EMbase,Cochrane Library,Web of Science,EBSCO,CINAHL,CNKI,CBM Database,Wanfang Data and VIP Database,from the inception of databases to August 2024.Retrieved literature included guidelines,clinical decisions,recommended practices,evidence summaries,expert consensus and systematic reviews.Two researchers evaluated the literature methodologically and then summarised evidence from the included data.Results Fifteen publications(2 guidelines,1 clinical decision,3 recommended practices,7 evidences and 2 systematic reviews)were included.A total of 30 pieces of evidence were extracted and they were grouped into 7 themes:risk assessment,selection of nasogastric tube,depth of intubation,tube fixation,tube position,tube management and patient education.Conclusion Clinicians should integrate the best evidences into clinical practice and assess risk factors for unplanned extubation of nasogastric tube in adult inpatients.Personalised early intervention plans should be made to reduce or avoid the unplanned extubation.
7.Prevention strategies for unplanned extubation of nasogastric tube in adult inpatients:a summary on best evidences
Meixuan SONG ; Linxia XU ; Yuqin ZOU ; Shan ZHAO ; Ya SHEN ; Qidan HE ; Juan WU ; Xianrong LI
Modern Clinical Nursing 2025;24(10):74-82
Objective To search,evaluate and synthesise the best available evidence on prevention strategies for unplanned extubation of nasogastric tube in adult inpatients and to offer a reference in management of safety and efficiency.Methods Literature on prevention strategies for unplanned extubation of nasogastric tube in adult inpatients was retrieved across BMJ Best Practice,UpToDate,JBI Center for Evidence Based Healthcare International Collaboration Library,Medlive,US National Guidelines Database,International Guidelines Collaboration Group,Scottish InterAcademy Guidelines Network,Ontario Registered Nurses Association of Canada,UK National Institute for Clinical Optimization,New Zealand Guidelines Research Group,PubMed,EMbase,Cochrane Library,Web of Science,EBSCO,CINAHL,CNKI,CBM Database,Wanfang Data and VIP Database,from the inception of databases to August 2024.Retrieved literature included guidelines,clinical decisions,recommended practices,evidence summaries,expert consensus and systematic reviews.Two researchers evaluated the literature methodologically and then summarised evidence from the included data.Results Fifteen publications(2 guidelines,1 clinical decision,3 recommended practices,7 evidences and 2 systematic reviews)were included.A total of 30 pieces of evidence were extracted and they were grouped into 7 themes:risk assessment,selection of nasogastric tube,depth of intubation,tube fixation,tube position,tube management and patient education.Conclusion Clinicians should integrate the best evidences into clinical practice and assess risk factors for unplanned extubation of nasogastric tube in adult inpatients.Personalised early intervention plans should be made to reduce or avoid the unplanned extubation.
8.Molecular epidemiology and genetic characteristics of human metapneumovirus in Suzhou
Xuan YUAN ; Zefeng DONG ; Zhihui XU ; Xuerong YA ; Qiang SHEN
Chinese Journal of Microbiology and Immunology 2025;45(10):826-831
Objective:To analyze the epidemiological characteristics of human metapneumovirus(hMPV)in respiratory samples from patients in Suzhou,China,and investigate the results of whole-genome sequencing,so as to provide scientific evidence for a deeper understanding of its genetic diversity and the development of preventive measures.Methods:In this study,1 340 influenza-like illness(ILI)samples and 970 severe acute respiratory infection(SARI)samples were collected from two sentinel hospitals in Suzhou in 2024. Nucleic acid detection was performed using a multiplex real-time fluorescence PCR method. For hMPV-positive samples,whole-genome sequencing was conducted on the Illumina Miseq platform. Mutations,insertions,deletions,and other variations were identified using the pathogenic virus whole-genome analysis system. A phylogenetic tree was constructed by the Maximum Likelihood method for lineage analysis.Results:Among 2 310 respiratory samples,the overall hMPV positivity rate was 1.69%(39/2 310),with positivity rates of 1.27%(17/1 340)in ILI samples and 2.27%(22/970)in SARI samples. No statistically significant difference was observed between the two groups( P>0.05). The proportion of mixed infections in hMPV-positive samples was 46.15%(18/39),with mixed infection rates of 23.53%(4/17)in the ILI group and 63.64%(14/22)in the SARI group. In terms of temporal distribution,the peak period of hMPV infection primarily concentrated in January and December. The whole genomes of 13 hMPV strains were successfully obtained,and 554 missense mutations were identified in the coding region,with particularly significant variations observed in the G gene region. Phylogenetic analysis revealed that 4 strains belonged to the A2b2 subtype,while 9 strains belonged to the B2 subtype. Conclusions:In Suzhou,hMPV exhibits a relatively balanced distribution between ILI and SARI clinical groups,with infection peaks mainly occurring in winter and a high proportion of mixed infections. The predominant circulating strain is the B2 subtype,and its genome shows significant genetic variation,particularly in the G gene region.
9.A survey on maternal adverse symptoms and functionality in the third trimester and postpartum
Ya LIU ; Xu QIAN ; Chunyi GU ; Shuang LIANG ; Beibei SHEN ; Liping SUN
Shanghai Journal of Preventive Medicine 2024;36(8):771-778
ObjectiveTo use the maternal morbidity WOICE Tool(Chinese version)to investigate the maternal morbidity in Shanghai, and to examine the current situation and associated factors of adverse symptoms and impaired functioning in the third trimester and postpartum period. MethodsPregnant women who made their initial visit and established a medical record at a tertiary obstetrics and gynecology hospital in Shanghai from March to August 2021 were recruited and a baseline survey was completed. The prevalence of maternal morbidity was surveyed in the third trimester and first 6 weeks postpartum. ResultsSelf-reported adverse physical symptoms were observed in 89.8% of women in the third trimester and 86.1% in first 6 weeks postpartum. The prevalence rates of anxiety and depression were 4.1% and 6.2% in the third trimester, and 6.2% and 7.5% in first 6 weeks postpartum, respectively. The proportions of women reporting impaired functioning were 80.3% in the third trimester and 64.1% in first 6 weeks postpartum, respectively. Physical symptoms were associated with parity, education, the newborn’s health status, and risk of experiencing violence. Psychological symptoms were associated with age, household responsibilities, employment status, the newborn’s health status, pre-pregnancy body mass index (BMI), and risk of experiencing violence. Functionality was associated with the type of registered residence, education level, household responsibilities, and risk of experiencing violence. ConclusionThe physical health status of pregnant and postpartum women in Shanghai is better than that in the middle-income regions abroad, with anxiety and depression at average levels compared to national statistics in China. Physical, psychological, and functional status are affected by multiple factors including personal, health, family, and work conditions. Preventive measures should be taken from various perspectives to mitigate adverse symptoms and impaired functioning, and to improve the positive experience of pregnancy and childbirth.
10.Association of psychological stress with wives’ hypertension across over 10 million Chinese married female population aged 20-49 years
Zhenyan ZHAO ; Jiajing JIA ; Xinyi LYU ; Lihua ZHANG ; Yuanyuan WANG ; Yuan HE ; Zuoqi PENG ; Ya ZHANG ; Hongguang ZHANG ; Qiaomei WANG ; Haiping SHEN ; Yiping ZHANG ; Donghai YAN ; Xu MA ; Ying YANG
Chinese Medical Journal 2024;137(13):1583-1591
Background::Psychological stress has been reported to be a potential risk factor for hypertension among females, but it remains unclear whether spousal chronic stress levels alter the risk of hypertension among women. We examined the associations between stress within the family and hypertension among married women.Methods::Reproductive-aged women who were planning for pregnancy and their husbands were recruited from the National Free Pre-pregnancy Checkup Projects (NFPCP) across 31 provinces in China in 2016 and 2017. Perceived stress of wives or husbands was measured with a 5-point Likert-type scale, and assessed from three domains: work/life-related stress, economic stress, and overall stress. Multivariable-adjusted logistic regression models were used to assess the associations between stress status and the prevalence of hypertension.Results::Of 10,027,644 couples, 261,098 (2.60%) women had hypertension. The results showed that higher stress levels among themselves or their husbands were associated with a higher prevalence of hypertension in women ( Pfor trend <0.001). Compared with non-stressed participants, female participants with the highest stress themselves were at a greater risk of hypertension, with adjusted odds ratio (OR) of 1.31 (95% confidence interval [CI]: 1.25-1.37); and compared with participants whose husbands had no stress, those whose husbands had the highest stress level were at a higher risk of hypertension with adjusted OR of 1.24 (95% CI: 1.20-1.29). Moreover, compared with non-stressed status for both couples, only-wife-stressed, only-husband-stressed, and both-stressed couples were found to be significantly associated with increased risks of wives’ hypertension, with adjusted ORs of 1.28 (95% CI: 1.25-1.31), 1.19 (95% CI: 1.17-1.21), and 1.28 (95% CI: 1.26-1.31), respectively. Conclusion::Moderate to severe stress in both spouses might be associated with female hypertension prevalence, which highlights the importance of paying attention to the psychological stresses of couples within the family.

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