1.Research progress on impact of compound hot-dry events on incidence of infectious diseases
Di WANG ; Xiaoni CHI ; Zishan HUANG ; Yizhen YAO ; Yi LIN ; Jianxiong HU ; Tao LIU ; Wenjun MA ; Guanhao HE
Journal of Environmental and Occupational Medicine 2024;41(8):925-933
Climate change has led to an increasing frequency and intensity of extreme climate events such as heat and drought extremes with considerable global public health burden. This systematic review collected 87 domestic and international studies from 2000 to 2023, considering the impacts of heat extremes, drought extremes, and compound hot-dry events on infectious diseases attributable to various transmission pathways such as waterborne, foodborne, insect-borne, airborne, and contact-transmitted diseases. Our results showed that high temperature was associated with increased transmission risks of waterborne and foodborne diseases including infectious diarrheal diseases (cholera, dysentery, typhoid, and paratyphoid) and infectious gastroenteritis; vector-borne diseases including dengue fever, Zika virus (ZIKV) disease, chikungunya fever, malaria, West Nile fever, and Rift Valley fever; airborne diseases including influenza-like diseases, influenza A, measles, and mumps; and contact-transmitted diseases including HIV/AIDS, schistosomiasis, and leptospirosis. Additionally, drought conditions also amplified the transmission risks of waterborne and foodborne diseases including cholera, Escherichia coli infection, rotavirus infection, and hepatitis E; vector-borne diseases such as scrub typhus, schistosomiasis, hemorrhagic fever with renal syndrome, and West Nile fever; airborne diseases including meningococcal meningitis, pertussis, measles, and upper respiratory infections; and contact-transmitted diseases such as HIV/AIDS. Along with global warming, the frequency of compound high temperature and drought events shows a considerably increasing trend, causing more adverse health effects than heat or drought alone. However, there is limited research quantifying their effects on infectious diseases. These associations may be mediated through temperature and precipitation on infectious disease pathogens, transmission vectors, population susceptibility, public health services, and behaviors. In the context of climate change, the increasing occurrence of compound events of high temperatures and droughts raises health concerns, and further studies are needed to enhance our understanding of the impacts of climate change on infectious diseases and improve human adaption to climate change.
2.Risk factors for arrhythmia after robotic cardiac surgery: A retrospective cohort study
Wenjun WU ; Renzhong DING ; Jianming CHEN ; Ye YUAN ; Yi SONG ; Manrong YAN ; Yijie HU
Chinese Journal of Clinical Thoracic and Cardiovascular Surgery 2024;31(05):745-750
Objective To investigate the risk factors for arrhythmia after robotic cardiac surgery. Methods The data of the patients who underwent robotic cardiac surgery under cardiopulmonary bypass (CPB) from July 2016 to June 2022 in Daping Hospital of Army Medical University were retrospectively analyzed. According to whether arrhythmia occurred after operation, the patients were divided into an arrhythmia group and a non-arrhythmia group. Univariate analysis and multivariate logistic analysis were used to screen the risk factors for arrhythmia after robotic cardiac surgery. Results A total of 146 patients were enrolled, including 55 males and 91 females, with an average age of 43.03±13.11 years. There were 23 patients in the arrhythmia group and 123 patients in the non-arrhythmia group. One (0.49%) patient died in the hospital. Univariate analysis suggested that age, body weight, body mass index (BMI), diabetes, New York Heart Association (NYHA) classification, left atrial anteroposterior diameter, left ventricular anteroposterior diameter, right ventricular anteroposterior diameter, total bilirubin, direct bilirubin, uric acid, red blood cell width, operation time, CPB time, aortic cross-clamping time, and operation type were associated with postoperative arrhythmia (P<0.05). Multivariate binary logistic regression analysis suggested that direct bilirubin (OR=1.334, 95%CI 1.003-1.774, P=0.048) and aortic cross-clamping time (OR=1.018, 95%CI 1.005-1.031, P=0.008) were independent risk factors for arrhythmia after robotic cardiac surgery. In the arrhythmia group, postoperative tracheal intubation time (P<0.001), intensive care unit stay (P<0.001) and postoperative hospital stay (P<0.001) were significantly prolonged, and postoperative high-dose blood transfusion events were significantly increased (P=0.002). Conclusion Preoperative direct bilirubin level and aortic cross-clamping time are independent risk factors for arrhythmia after robotic cardiac surgery. Postoperative tracheal intubation time, intensive care unit stay, and postoperative hospital stay are significantly prolonged in patients with postoperative arrhythmia, and postoperative high-dose blood transfusion events are significantly increased.
3.Early prediction of growth patterns after pediatric kidney transplantation based on height-related single-nucleotide polymorphisms
Yi FENG ; Yonghua FENG ; Mingyao HU ; Hongen XU ; Zhigang WANG ; Shicheng XU ; Yongchuang YAN ; Chenghao FENG ; Zhou LI ; Guiwen FENG ; Wenjun SHANG
Chinese Medical Journal 2024;137(10):1199-1206
Background::Growth retardation is a common complication of chronic kidney disease in children, which can be partially relieved after renal transplantation. This study aimed to develop and validate a predictive model for growth patterns of children with end-stage renal disease (ESRD) after kidney transplantation using machine learning algorithms based on genomic and clinical variables.Methods::A retrospective cohort of 110 children who received kidney transplants between May 2013 and September 2021 at the First Affiliated Hospital of Zhengzhou University were recruited for whole-exome sequencing (WES), and another 39 children who underwent transplant from October 2021 to March 2022 were enrolled for external validation. Based on previous studies, we comprehensively collected 729 height-related single-nucleotide polymorphisms (SNPs) in exon regions. Seven machine learning algorithms and 10-fold cross-validation analysis were employed for model construction.Results::The 110 children were divided into two groups according to change in height-for-age Z-score. After univariate analysis, age and 19 SNPs were incorporated into the model and validated. The random forest model showed the best prediction efficacy with an accuracy of 0.8125 and an area under curve (AUC) of 0.924, and also performed well in the external validation cohort (accuracy, 0.7949; AUC, 0.796). Conclusions::A model with good performance for predicting post-transplant growth patterns in children based on SNPs and clinical variables was constructed and validated using machine learning algorithms. The model is expected to guide clinicians in the management of children after renal transplantation, including the use of growth hormone, glucocorticoid withdrawal, and nutritional supplementation, to alleviate growth retardation in children with ESRD.
4.Diagnosis and treatment of reinfection of SARS-CoV-2 in kidney transplant recipients in children
Chenghao FENG ; Zhigang WANG ; Fumin CHENG ; Yonghua FENG ; Yi FENG ; Yuanbo QI ; Zhaoru HUANG ; Yongchuang YAN ; Guiwen FENG ; Wenjun SHANG
Chinese Journal of Organ Transplantation 2024;45(4):251-258
Objective:To explore the clinical characteristics of pediatric kidney transplant recipients reinfected with SARS-CoV-2.Method:The relevant clinical data were retrospectively reviewed for 191 pediatric kidney transplant recipients at a single center. Based upon whether or not there was a reinfection of SARS-CoV-2, they were assigned into two groups of single infection (group A, 127 cases) and reinfection (group B, 64 cases). Baseline profiles, clinical symptoms, diagnostic and therapeutic strategies, markers of disease progression, immune status, respiratory support modalities, comorbidities and transplantation-related data were collected for comparing the inter-group differences during primary infection and between two infections in reinfected group.Result:As compared with group A, group B recipients had a higher proportion of age <12 years (71.9% vs 54.3%) ,unvaccinated (81.2% vs 66.1%) and such symptoms as high fever (34.4% vs 12.6% ), dry cough (43.8% vs 23.6% ) and chest tightness (14.1% vs 3.9 %) during primary infection (all P<0.05). During primary infection, the levels of IL-6 and CRP were higher in group B than in group A and inter-group difference was statistically significant (both P<0.01). The levels of IL-6 ( P<0.01), CRP ( P<0.01) and PCT ( P= 0.023) were lower in group B during reinfection than those during primary infection and the difference was statistically significant. During primary infection, the counts of CD3+, CD4+, CD8+, NK and B lymphocyte of group B were lower than those of group A. And inter-group differences were statistically significant (all P<0.01). During reinfection, the levels of CD3+, CD4+, CD8+, NK and B lymphocyte counts of group B spiked as compared with those of group A during primary infection and the differences were statistically significant (all P<0.01). The levels of SCr and UA in group B differed insignificantly before and after primary infection with SARS-CoV-2. However, the differences before and after reinfection were statistically significant (both P<0.01) . Conclusion:Symptomatic and immunocompromised pediatric KT recipients during primary infection with SARS-CoV-2 are more prone to reinfection during subsequent epidemics. Though mildly symptomatic, reinfection may exacerbate impairments of graft kidney function in pediatric KT recipients.
5.Analysis of characteristic pathological manifestations and expressions of non-HLA antibodies after kidney transplantation
Zhaoru HUANG ; Lei LIU ; Yi FENG ; Junxiang WANG ; Yongchuang YAN ; Zhigang WANG ; Hongchang XIE ; Yuanbo QI ; Jinfeng LI ; Wenjun SHANG
Chinese Journal of Organ Transplantation 2024;45(10):710-717
Objective:To explore the characteristic pathological manifestations of non-HLA antibodies after kidney transplantation (KT) and examine the differences of MFT values of non-HLA antibodies in different pathological manifestations.Methods:The study was conducted on KT recipients at the First Affiliated Hospital of Zhengzhou University from February 2021 to June 2023 with unexplained elevated serum creatinine. Patients undergoing pathological puncture and concurrent HLA antibody testing were included, focusing on those with DSA (MFI>4 000) and non-HLA antibody negativity. According to the detection results of non-HLA and HLA antibodies, they were assigned into two groups of non-HLA antibody positive (45 cases) and HLA-DSA positive (28 cases). Both non-HLA and HLA antibodies were detected by luminex single antigen microbeads, χ2, t or Mann-Whitney U nonparametric tests were utilized for examining the inter-group differences in pathological manifestations. The recipients with positive non-HLA antibodies were grouped according to the differential pathological features[microvascular inflammation group (22 cases) and non-microvascular inflammation group (23 cases), interstitial fibrosis group (39 cases) and non-interstitial fibrosis (9 cases) ]. MFI values of non-HLA antibodies were standardized and heat map was generated with R language ComplexHeatmap package. The differences of response values of non-HLA antibodies with different pathological manifestations were examined by rank-sum test. Results:The positive rates of microvascular inflammation were 48.9% (22/45) and 82.1% (23/28) in HLA-DSA positive and non-HLA antibody positive groups with statistical significance ( χ2=8.073, P=0.006). The positive rates of interstitial fibrosis in two groups were 80.8% (36/45) and 53.6% (15/28) and the difference was statistically significant ( χ2=5.726, P=0.021). The relative levels of anti-arachnotoxin receptor 1 (Latrophilin 1, LPHN1), keratin 8 (KRT8), keratin 18 (KRT18) and Sjogren's syndrome antigen B (SSB) were higher in microvascular inflammation group than those in non-microvascular inflammation group. The differences were statistically significant [559.50 (262.00, 801.25) vs 285.00 (183.00, 460.00), P=0.024; 504.50 (369.5, 725.25) vs 317.00 (231.50, 458.00), P=0.014; 672.50 (454.50, 969.50) vs 399.00 (246.50, 772.50), P=0.030; 967.50 (482.00, 2 066.50) vs 399.00 (246.50, 772.50), P=0.033]. The relative levels of anti-cyclic citrullinate peptide (CCP), colony-stimulating factor 2 (CSF2), intercellular adhesion molecule 1 (ICAM1) and collagen Ⅳ antibody were higher in interstitial fibrosis group than those in non-interstitial fibrosis group with statistical significance [100.00 (79.88, 167.50) vs 64.50 (37.00, 89.00), P=0.016; 146.25 (93.38, 244.75) vs 87.00 (66.00, 105.00), P=0.041; 132.50 (106.38, 229.50) vs 95.00 (55.00, 125.00), P=0.037; 432.50 (280.75, 653.75) vs 208.00 (192.00, 301.00), P=0.028]. Conclusions:As compared with HLA-DSA, the characteristic pathological manifestations of non-HLA antibodies post-KT include a lower incidence of microvascular inflammation and a higher incidence of interstitial fibrosis. For non-HLA antibody response values of characteristic pathological manifestations, the expressions of different non-HLA antibodies vary statistically.
6.Analysis on Academic Thought of Erectile Dysfunction Diagnosed and Treated by Zhejiang Faction TCM Doctor FENG Zhao-zhang
Yi YAN ; Lei LIU ; Wenjun QIAN
Journal of Zhejiang Chinese Medical University 2024;48(6):713-717
[Objective]To explore the academic thought of erectile dysfunction in Fengshi Jinnang Milu written by Zhejiang physician FENG Zhaozhang,and to provide reference for clinical practice of erectile dysfunction.[Methods]It takes the chapter of"Fangmai Yangwei"in Fengshi Jinnang Milu as the main research object,combines with other chapters in the book to systematically sort out the academic thought characteristics of the book in the treatment of erectile dysfunction.[Results]FENG praised the theory of"Mingmen",and paid special attention to the role of Yin and Yang,water and fire in the occurrence and development of diseases.He discussed the etiology and pathogenesis of erectile dysfunction in detail in the chapter of"Fangmai Yangwei".He believed that the damage of the five internal organs was the precursor of erectile dysfunction,and the imbalance of Yin and Yang,stagnation of fire caused by various reasons could lead to the occurrence of this disease.In the treatment,many prescriptions were listed,focusing on tonifying Yin and Yang,and most of them were pills.At the same time,the drug delivery was mainly based on wine,ginger soup,salt soup,etc.It also had the method of taking different decoctions at different times and the method of taking medicine by solar terms,which was quite distinctive.[Conclusion]FENG's discussion on the etiology,pathogenesis,diagnosis and treatment of erectile dysfunction is quite detailed,and his understanding is distinctive.The academic thought of impotence in his book also has practical significance for the treatment of erectile dysfunction today.
7.The effects of occupational noise exposure on glycated hemoglobin and prediabetes
Xiayun DAI ; Wenjun YIN ; Jichao LI ; Ling ZHANG ; Tian XU ; Xiaoli SHEN ; Qunyan LI ; Shenglan ZHOU ; Guilin YI ; Zhiwei PAN ; Zhenlong CHEN
China Occupational Medicine 2023;50(3):274-278
Objective To investigate the relationship between occupational noise exposure and glycated hemoglobin (HbA1c) levels, as well as prediabetes diagnosed by HbA1c. Methods A total of 1 181 workers from a cigarette factory were selected as the research subjects using a judgment sampling method. Workers were divided into control, low-level noise exposure and high-level noise exposure groups, consisting of 236, 359, and 586 individuals, respectively. The blood sample was collected for HbA1c test and occupation noise exposure intensity in workplace was detected by an area-sampling method. Results There were no statistical significant differences in HbA1c levels and prediabetes prevalence among the three groups of workers (all P>0.05). After adjusting for potential confounding factors such as years of service, gender, smoking, pack-years of smoking, alcohol consumption, and body mass index, multiple linear regression analysis showed that the high-level noise exposure group had higher HbA1c level than the control group (P<0.05). Multivariable logistic regression analysis results showed that the high-level noise exposure group had higher risk of prediabetes compared with the control group (P<0.05). Conclusion Occupational noise exposure could be a risk factor for the increased HbA1c levels and prediabetes incidence among the occupational population. More attention should be paid to the effects of occupational noise exposure on the HbA1c level in occupational health surveillance.
8.Advances in kidney transplantation for children with hereditary nephrotic syndrome
Yi FENG ; Yonghua FENG ; Wenjun SHANG
Chinese Journal of Applied Clinical Pediatrics 2023;38(9):717-720
Hereditary nephrotic syndrome (NS) has a high risk of progression to end-stage renal disease.Renal transplantation is the optimal renal replacement therapy.The specificity of hereditary NS in the field of kidney transplantation has not been systematically illustrated yet.Due to the large amount of hormone uses before operation, the difference of immunosuppressive therapy in patients with hereditary NS should be well concerned, including the selection of immune induction and maintenance regimens.Relatives of patients with hereditary NS should undergo genetic testing before living donor transplantation, and donors are qualified only after a thorough risk assessment and informed consent.Post-transplant recurrence of hereditary NS is rare, with an acceptable response to plasma exchange.This review aims to describe the characteristics of hereditary NS in children in the field of kidney transplantation, thus providing guidance for kidney transplantation for hereditary NS.
9.Epidemiological research progress on association of drought with mortality
Yi LIN ; Guanhao HE ; Wenjun MA
Journal of Environmental and Occupational Medicine 2023;40(11):1319-1326
Drought is expected to be more severe and frequent due to climate change. Drought exerts not only extensive impacts on economy and environment, but also direct or indirect impacts on human health. This review systematically collected studies exploring the association between drought and human mortality, and summarized the associations between drought and all-cause mortality, chronic non-communicable disease mortality, communicable disease mortality, and injury mortality. The results revealed that drought was significantly associated with human mortality, leading to an elevated mortality risk of cardiovascular diseases, respiratory diseases, cancers, diarrhea, and injuries; serious drought increased much more mortality risk than mild drought; males in rural areas, the elderly, and children were vulnerable populations to drought. However, in-depth studies on the association of drought with human mortality are limited, which calls for related studies in the future. This review summarized the current research status and existing problems in drought and population death, and pointed out the future research direction, which can provide reference for future related research.
10.Effects of the interaction between occupational noise exposure and arterial stiffness on blood glucose
Lei NI ; Wenjun YIN ; Yanru LIU ; Qunyan LI ; Guilin YI ; Zhenlong CHEN
Journal of Preventive Medicine 2023;35(2):108-111
Objective:
To investigate the effects of the interaction between occupational noise exposure and arterial stiffness on blood glucose, so as to provide insights into for early prevention of diabetes among workers exposed to occupational noise.
Methods:
A total of 518 noise workers were selected from a tobacco plant in Wuhan City. Participants' gender, age and work duration were collected using questionnaire surveys, and participants' height and weight were measured. Blood glucose and arterial stiffness were detected, and the noise intensity was measured in working environments with a personal noise dosimeter. The effects of occupational noise exposure, arterial stiffness and their interactions on blood glucose were examined using a multiple linear regression model.
Results:
A total of 518 workers were included, with 398 males (76.83%), a mean age of (40.85±10.68) years, a mean working age of (19.50±12.69) years, a mean body mass index of (23.66±3.31) kg/m2, and a mean blood glucose level of (5.15±0.99) mmol/L. There were 247 workers with occupational noise exposure (47.68%) and 175 workers with arterial stiffness (33.78%). Multiple linear regression analysis showed significant associations of noise (β'=0.112) and arterial stiffness (β'=0.168) with blood glucose, and there was an additive interaction between noise and arterial stiffness on blood glucose (β'=0.314).
Conclusion
The interaction between occupational noise and arterial stiffness affects blood glucose.


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