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Lei JY, Li Y, Li CM, Xiong XL, Feng CC, Weng WJ, Peng XM, Zhou DH, Huang K. [Effect of Low-Dose Recombinant Interleukin-2 Therapy on Immunocyte Subsets in Children with Solid Tumor]. Zhongguo Shi Yan Xue Ye Xue Za Zhi 2024; 32:445-449. [PMID: 38660850 DOI: 10.19746/j.cnki.issn.1009-2137.2024.02.019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 04/26/2024]
Abstract
OBJECTIVE To evaluate the effect of low-dose recombinant interleukin-2 (rIL-2) therapy on immunocyte subsets and its side effects in children with solid tumor. METHODS A total of 22 children (11 males and 11 females) with solid tumor in our department from December 2012 to November 2017 were selected, with a median age of 9 (3-16) years old when starting IL-2 therapy. ALL surgeries and chemotherapy of children had been completed before low-dose rIL-2 therapy, and 17 cases achieved complete remission (CR) and 5 cases achieved partial remission (PR). A low-dose rIL-2 therapy was given 1 month after chemotherapy for 1 year: 4×105 IU/(m2·d), s.c. for every other day, 3 times per week. The immunocyte subsets were detected every 3 months until the end of treatment, meanwhile, disease condition and therapy-related side effects were followed up. RESULTS After low-dose rIL-2 therapy in 22 children, the absolute values of CD3+ T cells, CD3-CD56+ natural killer cells, CD3+CD4+ helper T cells (Th) and CD3+CD8+ cytotoxic T cells were up-regulated remarkably, as well as Th/suppressor T cells (all P < 0.05). While, there were no significant differences in absolute value and proportion of CD4+CD25+CD127- Treg cells during therapy. Among the 17 children who achieved CR before rIL-2 therapy, 14 cases continued to maintain CR after therapy, while 3 cases relapsed, and with 2 died after treatment abandonment. The 5 children who achieved PR before low-dose rIL-2 therapy were evaluated CR by PET/CT scan after treatment. In the early stage of low-dose rIL-2 therapy, 1 child developed skin rashes at the injection sites, and 2 children ran a slight to mild transient fever. Their symptoms disappeared without any organ damage after symptomatic treatment. CONCLUSION Low-dose rIL-2 therapy has good drug tolerance, and changes the distribution of anti-tumor immune-cell subgroup in peripheral blood of children with solid tumor remarkably without up-regulation of absolute value and ratio of Treg cells.
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Affiliation(s)
- Jia-Ying Lei
- Department of Oncology, Children's Medical Center, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou 510120, Guangdong Province, China
| | - Yang Li
- Department of Oncology, Children's Medical Center, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou 510120, Guangdong Province, China.E-mail:
| | - Chun-Mou Li
- Department of Oncology, Children's Medical Center, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou 510120, Guangdong Province, China
| | - Xi-Lin Xiong
- Department of Oncology, Children's Medical Center, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou 510120, Guangdong Province, China
| | - Chu-Chu Feng
- Department of Oncology, Children's Medical Center, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou 510120, Guangdong Province, China
| | - Wen-Jun Weng
- Department of Oncology, Children's Medical Center, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou 510120, Guangdong Province, China
| | - Xiao-Min Peng
- Department of Oncology, Children's Medical Center, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou 510120, Guangdong Province, China
| | - Dun-Hua Zhou
- Department of Oncology, Children's Medical Center, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou 510120, Guangdong Province, China
| | - Ke Huang
- Department of Oncology, Children's Medical Center, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou 510120, Guangdong Province, China
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Cao JK, Fan HQ, Xiao YB, Wang D, Liu CG, Peng XM, Gao XR, Tang SH, Han T, Mei YB, Liang HY, Wang SM, Wang F, Li QP. [Establishment and efficiency test of a clinical prediction model of bronchopulmonary dysplasia associated pulmonary hypertension in very premature infants]. Zhonghua Er Ke Za Zhi 2024; 62:129-137. [PMID: 38264812 DOI: 10.3760/cma.j.cn112140-20230912-00178] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 01/25/2024]
Abstract
Objective: To develop a risk prediction model for identifying bronchopulmonary dysplasia (BPD) associated pulmonary hypertension (PH) in very premature infants. Methods: This was a retrospective cohort study. The clinical data of 626 very premature infants whose gestational age <32 weeks and who suffered from BPD were collected from October 1st, 2015 to December 31st, 2021 of the Seventh Medical Center of the People's Liberation Army General Hospital as a modeling set. The clinical data of 229 very premature infants with BPD of Hunan Children's Hospital from January 1 st, 2020 to December 31st, 2021 were collected as a validation set for external verification. The very premature infants with BPD were divided into PH group and non PH group based on the echocardiogram after 36 weeks' corrected age in the modeling set and validation set, respectively. Univariate analysis was used to compare the basic clinical characteristics between groups, and collinearity exclusion was carried out between variables. The risk factors of BPD associated PH were further screened out by multivariate Logistic regression, and the risk assessment model was established based on these variables. The receiver operating characteristic (ROC) area under curve (AUC) and Hosmer-Lemeshow goodness-of-fit test were used to evaluate the model's discrimination and calibration power, respectively. And the calibration curve was used to evaluate the accuracy of the model and draw the nomogram. The bootstrap repeated sampling method was used for internal verification. Finally, decision curve analysis (DCA) to evaluate the clinical practicability of the model was used. Results: A total of 626 very premature infants with BPD were included for modeling set, including 85 very premature infants in the PH group and 541 very premature infants in the non PH group. A total of 229 very premature infants with BPD were included for validation set, including 24 very premature infants in the PH group and 205 very premature infants in the non PH group. Univariate analysis of the modeling set found that 22 variables, such as artificial conception, fetal distress, gestational age, birth weight, small for gestational age, 1 minute Apgar score ≤7, antenatal corticosteroids, placental abruption, oligohydramnios, multiple pulmonary surfactant, neonatal respiratory distress syndrome (NRDS)>stage Ⅱ, early pulmonary hypertension, moderate-severe BPD, and hemodynamically significant patent ductus arteriosus (hsPDA) all had statistically significant influence between the PH group and the non PH group (all P<0.05). Antenatal corticosteroids, fetal distress, NRDS >stage Ⅱ, hsPDA, pneumonia and days of invasive mechanical ventilation were identified as predictive variables and finally included to establish the Logistic regression model. The AUC of this model was 0.86 (95%CI 0.82-0.90), the cut-off value was 0.17, the sensitivity was 0.77, and the specificity was 0.84. Hosmer-Lemeshow goodness-of-fit test showed that P>0.05. The AUC for external validation was 0.88, and the Hosmer-Lemeshow goodness-of-fit test suggested P>0.05. Conclusions: A high sensitivity and specificity risk prediction model of PBD associated PH in very premature infants was established. This predictive model is useful for early clinical identification of infants at high risk of BPD associated PH.
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Affiliation(s)
- J K Cao
- Department of Neonatology, Senior Department of Pediatrics, the Seventh Medical Center of the People's Liberation Army General Hospital (the Second School of Clinical Medicine, Southern Medical University), Beijing 100700, China
| | - H Q Fan
- Department of Cardiology, Hunan Children's Hospital, Changsha 410007, China
| | - Y B Xiao
- Department of Cardiology, Hunan Children's Hospital, Changsha 410007, China
| | - D Wang
- Department of Cardiology, Hunan Children's Hospital, Changsha 410007, China
| | - C G Liu
- Department of Neonatology, Senior Department of Pediatrics, the Seventh Medical Center of the People's Liberation Army General Hospital (the Second School of Clinical Medicine, Southern Medical University), Beijing 100700, China
| | - X M Peng
- Department of Neonatology, Hunan Children's Hospital, Changsha 410007, China
| | - X R Gao
- Department of Neonatology, Hunan Children's Hospital, Changsha 410007, China
| | - S H Tang
- Department of Neonatology, Senior Department of Pediatrics, the Seventh Medical Center of the People's Liberation Army General Hospital (the Second School of Clinical Medicine, Southern Medical University), Beijing 100700, China
| | - T Han
- Department of Neonatology, Senior Department of Pediatrics, the Seventh Medical Center of the People's Liberation Army General Hospital (the Second School of Clinical Medicine, Southern Medical University), Beijing 100700, China
| | - Y B Mei
- Department of Neonatology, Senior Department of Pediatrics, the Seventh Medical Center of the People's Liberation Army General Hospital (the Second School of Clinical Medicine, Southern Medical University), Beijing 100700, China
| | - H Y Liang
- Department of Neonatology, Senior Department of Pediatrics, the Seventh Medical Center of the People's Liberation Army General Hospital (the Second School of Clinical Medicine, Southern Medical University), Beijing 100700, China
| | - S M Wang
- Department of Neonatology, Senior Department of Pediatrics, the Seventh Medical Center of the People's Liberation Army General Hospital (the Second School of Clinical Medicine, Southern Medical University), Beijing 100700, China
| | - F Wang
- Department of Neonatology, Senior Department of Pediatrics, the Seventh Medical Center of the People's Liberation Army General Hospital (the Second School of Clinical Medicine, Southern Medical University), Beijing 100700, China
| | - Q P Li
- Department of Neonatology, Senior Department of Pediatrics, the Seventh Medical Center of the People's Liberation Army General Hospital (the Second School of Clinical Medicine, Southern Medical University), Beijing 100700, China
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Yang XS, Zhu P, Xie RX, Chen PF, Liu H, Cheng XM, Zhu ZQ, Peng XM, Liu HB, Yang QY, Li JQ, Zhang J. Tracking tumor alteration in glioma through serum fibroblast activation protein combined with image. BMC Cancer 2023; 23:1012. [PMID: 37864148 PMCID: PMC10588198 DOI: 10.1186/s12885-023-11544-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2023] [Accepted: 10/18/2023] [Indexed: 10/22/2023] Open
Abstract
PURPOSE Detecting tumor progression of glioma continues to pose a formidable challenge. The role of fibroblast activation protein (FAP) in gliomas has been demonstrated to facilitate tumor progression. Glioma-circulating biomarkers have not yet been used in clinical practice. This study seeks to evaluate the feasibility of glioma detection through the utilization of a serum FAP marker. METHODS We adopted enzyme-linked immunosorbent assay (ELISA) technique to quantify the relative FAP level of serum autoantibodies in a cohort of 87 gliomas. The correlation between preoperative serum autoantibody relative FAP levels and postoperative pathology, including molecular pathology was investigated. A series of FAP tests were conducted on 33 cases of malignant gliomas in order to ascertain their efficacy in monitoring the progression of the disease in relation to imaging observations. To validate the presence of FAP expression in tumors, immunohistochemistry was conducted on four gliomas employing a FAP-specific antibody. Additionally, the investigation encompassed the correlation between postoperative tumor burden, as assessed through volumetric analysis, and the relative FAP level of serum autoantibodies. RESULTS A considerable proportion of gliomas exhibited a significantly increased level of serum autoantibody relative FAP level. This elevation was closely associated with both histopathology and molecular pathology, and demonstrated longitudinal fluctuations and variations corresponding to the progression of the disease The correlation between the rise in serum autoantibody relative FAP level and tumor progression and/or exacerbation of symptoms was observed. CONCLUSIONS The measurement of serum autoantibody relative FAP level can be used to detect the disease as a valuable biomarker. The combined utilization of its detection alongside MR imaging has the potential to facilitate a more accurate and prompt diagnosis.
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Affiliation(s)
- Xiao-Song Yang
- Department of Anesthesiology, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, China
| | - Peng Zhu
- Department of Neurosurgery, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, China
| | - Rong-Xing Xie
- Department of Neurosurgery, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, China
| | - Peng-Fei Chen
- Department of Laboratory Medicine, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, China
| | - Hong Liu
- Department of Neurosurgery, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, China
| | - Xiao-Man Cheng
- Department of Neurosurgery, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, China
| | - Zheng-Quan Zhu
- Department of neurosurgery, Tumor Hospital Affiliated of Xinjiang Medical University, Xinjiang, China
| | - Xiao-Min Peng
- State Key Laboratory of Respiratory Diseases, National Clinical Research Center for Respiratory Diseases, Guangzhou Institute of Respiratory Health, First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Hai-Bin Liu
- Department of Imaging Diagnosis Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat Sen University Cancer Center, Guangzhou, China.
| | - Qun-Ying Yang
- Department of Neurosurgery, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, China.
| | - Jun-Qi Li
- State Key Laboratory of Respiratory Diseases, National Clinical Research Center for Respiratory Diseases, Guangzhou Institute of Respiratory Health, First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China.
- Third Affiliated Hospital of Zhengzhou University, Zhengzhou, China.
| | - Ji Zhang
- Department of Neurosurgery, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, China.
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Li XY, Chen H, Han XW, Peng XM, Li DF, Zhou DH, Xu LH, Fang JP, Huang K. Unconventional treatment for an unusual cauda equina syndrome associated with nontuberculous mycobacteria after allogenic stem cell transplantation in a child with acute lymphoblastic leukemia. Pediatr Blood Cancer 2023; 70:e29977. [PMID: 36184802 DOI: 10.1002/pbc.29977] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/13/2022] [Revised: 08/12/2022] [Accepted: 08/15/2022] [Indexed: 11/06/2022]
Affiliation(s)
- Xin-Yu Li
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, P. R. China.,Department of Pediatrics, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, P. R. China
| | - Han Chen
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, P. R. China.,Department of Pediatrics, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, P. R. China
| | - Xia-Wei Han
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, P. R. China.,Department of Pediatrics, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, P. R. China
| | - Xiao-Min Peng
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, P. R. China.,Department of Pediatrics, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, P. R. China
| | - Dong-Fang Li
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, P. R. China.,Department of Pediatrics, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, P. R. China
| | - Dun-Hua Zhou
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, P. R. China.,Department of Pediatrics, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, P. R. China
| | - Lu-Hong Xu
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, P. R. China.,Department of Pediatrics, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, P. R. China
| | - Jian-Pei Fang
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, P. R. China.,Department of Pediatrics, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, P. R. China
| | - Ke Huang
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, P. R. China.,Department of Pediatrics, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, P. R. China
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Ke RM, Ouyang LJ, Li WF, Peng XM. [Significance of soluble PD-L1 in patients with chronic hepatitis B and hepatitis C]. Zhonghua Gan Zang Bing Za Zhi 2023; 31:133-137. [PMID: 37137827 DOI: 10.3760/cma.j.cn501113-20221019-00565] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
Objective: The programmed death receptor 1/programmed death ligand 1 (PD-1/PD-L1) pathway can negatively regulate the immune response of the body, and serum soluble PD-L1 (sPD-L1) can reflect the expression level of PD-L1. This study aims to compare the expressional differences of sPD-L1 in serum between patients with chronic hepatitis B (CHB) and C (CHC) and further explore the factors influencing the clinical cure of CHB. Methods: 60 cases with CHB, 40 cases with CHC, and 60 healthy controls were selected. Serum levels of sPD-L1 were detected using an ELISA kit. The relationship between sPD-L1 levels and viral load, liver injury indicators, and others was analyzed in CHB and CHC patients. According to the distribution type of the data, a one-way ANOVA or Kruskal Wallis test as well as Pearson's correlation or Spearman's rank correlation analysis were performed. A difference of P<0.05 was considered statistically significant. Results: The serum sPD-L1 levels were significantly higher in CHB patients (414.6 ± 214.9) pg/ml than those in CHC patients (58.9 ± 122.1) pg/ml and the healthy control group (66.27 ± 24.43) pg/ml, and there was no statistically significant difference in serum sPD-L1 between CHC patients and the healthy control group. Further grouping and correlation analysis showed that the level of serum sPD-L1 was positively correlated with the content of HBsAg in CHB patients but not with HBV DNA, alanine transaminase, albumin, and other liver injury indicators. Additionally, there was no correlation between serum sPD-L1 levels, HCV RNA, and liver injury indicators in CHC patients. Conclusion: The serum sPD-L1 levels are significantly higher in CHB patients than those in the healthy control group and the CHC group, and there is a positive correlation between sPD-L1 levels and HBsAg. The persistent presence of HBsAg is an important mechanism for the activity of the PD-1/PD-L1 pathway, indicating that the activity of the PD-1/PD-L1 pathway may be an important factor that cannot be clinically cured in CHB as in CHC.
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Affiliation(s)
- R M Ke
- The Department of Liver Disease, Zhongshan Second People's Hospital, Zhongshan 528400, China
| | - L J Ouyang
- Center of Infectious Diseases, the Fifth Affiliated Hospital of Sun Yat-Sen University, Zhuhai 519000, China
| | - W F Li
- Clinical Laboratory, the Fifth Affiliated Hospital of Sun Yat-Sen University, Zhuhai 519000, China
| | - X M Peng
- Center of Infectious Diseases, the Fifth Affiliated Hospital of Sun Yat-Sen University, Zhuhai 519000, China
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Xiao FF, Lu YL, Wu BB, Dong XR, Cheng GQ, Hu LY, Zhou WH, Peng XM, Yang L, Wang HJ. [Clinical practice of whole-genome sequencing in the rapid diagnosis of critically ill neonates]. Zhongguo Dang Dai Er Ke Za Zhi 2023; 25:135-139. [PMID: 36854688 DOI: 10.7499/j.issn.1008-8830.2210096] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 03/02/2023]
Abstract
OBJECTIVES To explore the application of whole-genome sequencing (WGS) in the rapid clinical diagnosis of critically ill neonates. METHODS The critically ill neonates who admitted to the neonatal intensive care unit of Children's Hospital of Fudan University and underwent WGS from August to September, 2019 were enrolled in this prospective study. The genetic testing results and clinical outcome were analyzed with reference to the sequencing data and clinical features of the neonates. RESULTS A total of 15 neonates were tested, among whom there were 9 boys and 6 girls. The main reason for hospitalization included abnormal breathing in 7 neonates, poor response in 2 neonates, feeding difficulty in 2 neonates, fever in 1 neonate, hypothermia in 1 neonate, preterm birth in 1 neonate, and convulsion in 1 neonate. The mean turn-around time was 4.5 days for WGS. Finally a genetic diagnosis was obtained for 3 neonates, with a positive diagnostic rate of 20% (3/15). Among the 3 neonates, 2 neonates were withdrawn from the treatment due to severe conditions and 1 neonate died on the day when the sample was sent for genetic testing, whose etiology could be explained by the results of genetic testing. CONCLUSIONS WGS technique can provide a timely and effective diagnosis for critically ill neonates suspected of genetic diseases and provide genetic evidence for clinical treatment of critically ill cases.
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Affiliation(s)
- Fei-Fan Xiao
- Center for Molecular Medicine, Children's Hospital of Fudan University/National Children's Medical Center, Shanghai 201102, China
| | - Yu-Lan Lu
- Center for Molecular Medicine, Children's Hospital of Fudan University/National Children's Medical Center, Shanghai 201102, China
| | - Bing-Bing Wu
- Center for Molecular Medicine, Children's Hospital of Fudan University/National Children's Medical Center, Shanghai 201102, China
| | - Xin-Ran Dong
- Center for Molecular Medicine, Children's Hospital of Fudan University/National Children's Medical Center, Shanghai 201102, China
| | | | | | - Wen-Hao Zhou
- Center for Molecular Medicine, Children's Hospital of Fudan University/National Children's Medical Center, Shanghai 201102, China
| | - Xiao-Min Peng
- Center for Molecular Medicine, Children's Hospital of Fudan University/National Children's Medical Center, Shanghai 201102, China
| | - Lin Yang
- Center for Molecular Medicine, Children's Hospital of Fudan University/National Children's Medical Center, Shanghai 201102, China
| | - Hui-Jun Wang
- Center for Molecular Medicine, Children's Hospital of Fudan University/National Children's Medical Center, Shanghai 201102, China
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Qian LF, Cheng TT, Chen HX, He DH, Peng XM, Zhao QH. Evaluation of the community involvement of nursing experts in reducing unintentional injuries in children. BMC Pediatr 2023; 23:42. [PMID: 36694183 PMCID: PMC9872291 DOI: 10.1186/s12887-022-03700-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/30/2022] [Accepted: 10/24/2022] [Indexed: 01/25/2023] Open
Abstract
BACKGROUND Nursing experts regularly visited the community to deliver safety education on the prevention of unintentional injuries in children to the parents of children aged 0-6 years and to pregnant women in a maternity school. This was undertaken to explore the effects of the measure on preventing unintentional injuries in children in Chizhou, China. METHODS Using the convenience sampling method, the guardians(it means mother in this study)of children were investigated. The nursing experts visited communities in which the number of nursing experts is declining. Data on unintentional injuries in children in the previous year were collected retrospectively. RESULTS After the nursing experts delivered safety education to the community, the scores of the questionnaire on unintentional injury prevention knowledge completed by children's guardians increased significantly (p < 0.01). Among the children whose guardians completed the questionnaire, there were 157 cases of unintentional injury in 2020 and 103 cases in 2021 (p < 0.05). The types of unintentional injuries included scratches, falls, sharp object injuries, swallowing of foreign bodies, burns and traffic accidents; there was no statistical difference (p > 0.05). However, there were significant differences in terms of gender ratio and location (p < 0.05). CONCLUSION In conjunction with the maternity school for pregnant women and the vaccination programme, nursing experts delivered safety education regarding unintentional injuries in children; this may have promoted safety and protection awareness in the children's guardians and reduced unintentional injuries.
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Affiliation(s)
- Li-Fang Qian
- Department of Nursing, People’s Hospital of Chizhou, Chizhou, 247000 China
| | - Ting-Ting Cheng
- Department of Nursing, People’s Hospital of Chizhou, Chizhou, 247000 China
| | - Hong-Xia Chen
- Department of Nursing, People’s Hospital of Chizhou, Chizhou, 247000 China
| | - Dong-Hui He
- Department of Nursing, People’s Hospital of Chizhou, Chizhou, 247000 China
| | - Xiao-Min Peng
- Department of Nursing, People’s Hospital of Chizhou, Chizhou, 247000 China
| | - Qing-Hua Zhao
- Department of Nursing, People’s Hospital of Chizhou, Chizhou, 247000 China
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Zhao SB, Huang SY, Pan Z, Peng XM, Peng XJ, Wu SJ, Wei DZ, Chen XP. [The compatibility of coix leaves and epimedium against fatigue and hypoxia tolerance]. Zhongguo Ying Yong Sheng Li Xue Za Zhi 2021; 37:510-513. [PMID: 34816663 DOI: 10.12047/j.cjap.6059.2021.083] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
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Du H, Wang YW, Cui LL, Fang JL, Sun QH, Du YJ, Zhang YJ, Zhong Y, Huang ZH, Zhang WJ, Peng XM, Zhang Y, Li TT. [Evaluation of the fresh air purification system in the classroom under heavy pollution weather]. Zhonghua Yu Fang Yi Xue Za Zhi 2021; 55:995-998. [PMID: 34445839 DOI: 10.3760/cma.j.cn112150-20200930-01249] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Evaluate the effect of the fresh air purification system on the improvement of indoor PM2.5 levels in a primary school classroom in Jinan City, Shandong Province. Our purpose is to explore the optimal operating time of the fresh air system and the main factors that affect the fresh air purification system to improve indoor air quality. From December 9, 2019 to December 10, 2019, two classrooms of the same area on the third floor of a primary school building in Jinan City, Shandong Province were selected as monitoring points. During the operation of the fresh air purification system, the PM2.5 concentration in the classroom is reduced by an average of 48.1%-61.5% compared to the outdoor PM2.5 concentration. After running for about 2 hours, the indoor PM2.5 concentration decreased to a relatively stable concentration level. The operating time of the fresh air purification system, student activities between classes, indoor temperature, indoor relative humidity, and outdoor PM2.5 concentration are important factors that affect the indoor particulate removal rate. In the case of a certain amount of fresh air and indoor area, closing doors and windows and appropriately extending the operation time of the fresh air purification system can improve the air quality in the classroom to a certain extent and protect the health of students.
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Affiliation(s)
- H Du
- China CDC Key Laboratory of Environment and Population Health/National Institute of Environmental' Health, Chinese Center for Disease Control and Prevention, Beijing 100021, China
| | - Y W Wang
- China CDC Key Laboratory of Environment and Population Health/National Institute of Environmental' Health, Chinese Center for Disease Control and Prevention, Beijing 100021, China
| | - L L Cui
- Institute of Environmental Health, Jinan Municipal Center for Disease Control and Prevention, Jinan 250021, China
| | - J L Fang
- China CDC Key Laboratory of Environment and Population Health/National Institute of Environmental' Health, Chinese Center for Disease Control and Prevention, Beijing 100021, China
| | - Q H Sun
- China CDC Key Laboratory of Environment and Population Health/National Institute of Environmental' Health, Chinese Center for Disease Control and Prevention, Beijing 100021, China
| | - Y J Du
- China CDC Key Laboratory of Environment and Population Health/National Institute of Environmental' Health, Chinese Center for Disease Control and Prevention, Beijing 100021, China
| | - Y J Zhang
- Institute of Environmental Health, Jinan Municipal Center for Disease Control and Prevention, Jinan 250021, China
| | - Y Zhong
- China CDC Key Laboratory of Environment and Population Health/National Institute of Environmental' Health, Chinese Center for Disease Control and Prevention, Beijing 100021, China
| | - Z H Huang
- China CDC Key Laboratory of Environment and Population Health/National Institute of Environmental' Health, Chinese Center for Disease Control and Prevention, Beijing 100021, China
| | - W J Zhang
- China CDC Key Laboratory of Environment and Population Health/National Institute of Environmental' Health, Chinese Center for Disease Control and Prevention, Beijing 100021, China
| | - X M Peng
- Institute of Environmental Health, Jinan Municipal Center for Disease Control and Prevention, Jinan 250021, China
| | - Y Zhang
- Institute of Environmental Health, Jinan Municipal Center for Disease Control and Prevention, Jinan 250021, China
| | - T T Li
- China CDC Key Laboratory of Environment and Population Health/National Institute of Environmental' Health, Chinese Center for Disease Control and Prevention, Beijing 100021, China
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Tang WJ, Hu WH, Huang Y, Wu BB, Peng XM, Zhai XW, Qian XW, Ye ZQ, Xia HJ, Wu J, Shi JR. Potential protein–phenotype correlation in three lipopolysaccharide-responsive beige-like anchor protein-deficient patients. World J Clin Cases 2021; 9:5873-5888. [PMID: 34368306 PMCID: PMC8316938 DOI: 10.12998/wjcc.v9.i21.5873] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/03/2021] [Revised: 03/22/2021] [Accepted: 05/26/2021] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Patients with lipopolysaccharide (LPS)-responsive beige-like anchor protein (LRBA) deficiency have a variety of clinical symptoms, but there is no apparent genotype–phenotype correlation, and patients carrying the same mutations may have different phenotypes. Therefore, it is not easy for doctors to make a decision regarding hematopoietic stem cell transplantation (HSCT) for LRBA-deficient patients. We hypothesized that there may be a protein–phenotype correlation to indicate HSCT for LRBA-deficient patients.
AIM To report on three Chinese LRBA-deficient patients and determine the correlation between residual protein expression and disease phenotypes.
METHODS Clinical data of three Chinese LRBA-deficient patients were collected, and protein levels were detected by Western blot analysis. In addition, LRBA mutation information of another 83 previously reported patients was summarized.
RESULTS All the major clinical findings indicated enteropathy, but patients 1 and 3 presented with more severe symptoms than patient 2. Endoscopy and histology indicated nonspecific colitis for patients 1 and 3 but Crohn's disease-like colitis for patient 2. Compound heterozygous mutations in LRBA were found in patient 1, and homozygous mutations in LRBA were found in patient 2 and patient 3. Only patient 2 responded well to traditional immunosuppressive treatment. Residual expression of the LRBA protein in patients 1 and 3 was very low, but in patient 2, a more than 0.5-fold in expression of the LRBA protein was found compared to that in the control. After HSCT, patient 1 had increased LRBA protein expression. We summarized the genetic information of 86 patients, and the mutations in patients 1 and 3 were novel mutations.
CONCLUSION We described three Chinese LRBA-deficient patients, two of whom carried novel mutations. These patients had no genotype-phenotype correlations, but their residual LRBA protein expression might be associated with disease outcome and could be an indicator for HSCT.
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Affiliation(s)
- Wen-Juan Tang
- Department of Gastroenterology, Pediatric Inflammatory Bowel Disease Research Center, Children’s Hospital of Fudan University, National Children's Medical Center, Shanghai 201102, China
| | - Wen-Hui Hu
- Department of Gastroenterology, Pediatric Inflammatory Bowel Disease Research Center, Children’s Hospital of Fudan University, National Children's Medical Center, Shanghai 201102, China
| | - Ying Huang
- Department of Gastroenterology, Pediatric Inflammatory Bowel Disease Research Center, Children’s Hospital of Fudan University, National Children's Medical Center, Shanghai 201102, China
| | - Bing-Bing Wu
- The Molecular Genetic Diagnosis Center, Children's Hospital of Fudan University, Shanghai 201102, China
| | - Xiao-Min Peng
- The Molecular Genetic Diagnosis Center, Children's Hospital of Fudan University, Shanghai 201102, China
| | - Xiao-Wen Zhai
- Department of Hematology Oncology, Children's Hospital of Fudan university, National Children's Medical Center, Shanghai 201102, China
| | - Xiao-Wen Qian
- Department of Hematology Oncology, Children's Hospital of Fudan university, National Children's Medical Center, Shanghai 201102, China
| | - Zi-Qing Ye
- Department of Gastroenterology, Pediatric Inflammatory Bowel Disease Research Center, Children’s Hospital of Fudan University, National Children's Medical Center, Shanghai 201102, China
| | - Hai-Jiao Xia
- Department of Gastroenterology, Pediatric Inflammatory Bowel Disease Research Center, Children’s Hospital of Fudan University, National Children's Medical Center, Shanghai 201102, China
| | - Jie Wu
- Department of Gastroenterology, Pediatric Inflammatory Bowel Disease Research Center, Children’s Hospital of Fudan University, National Children's Medical Center, Shanghai 201102, China
| | - Jie-Ru Shi
- Department of Gastroenterology, Pediatric Inflammatory Bowel Disease Research Center, Children’s Hospital of Fudan University, National Children's Medical Center, Shanghai 201102, China
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Zhang P, Zhao J, Peng XM, Qian YY, Zhao XM, Zhou WH, Wang JS, Wu BB, Wang HJ. Cholestasis as a dominating symptom of patients with CYP27A1 mutations: An analysis of 17 Chinese infants. J Clin Lipidol 2020; 15:116-123. [PMID: 33414089 DOI: 10.1016/j.jacl.2020.12.004] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2020] [Revised: 11/28/2020] [Accepted: 12/04/2020] [Indexed: 02/06/2023]
Abstract
BACKGROUND CYP27A1 is the disease-causing gene of cerebrotendinous xanthomatosis (CTX). As a treatable lipid storage disease, early treatment can improve the prognosis. However, CTX patients reported in the literature are mostly adult patients; the phenotype spectrum of CTX in the infantile population remains elusive. OBJECTIVE We aimed to investigate the phenotype spectrum of infants who carried pathogenic or likely pathogenic variants in the CYP27A1 gene and were suspected of having CTX. METHODS From June 2014 to May 2020, infants with pathogenic or likely pathogenic variants in CYP27A1 gene were enrolled, who underwent next-generation sequencing or Sanger sequencing in Children's Hospital of Fudan University. Patient characteristics, clinical treatments and outcomes were extracted from electronic medical records. RESULTS A total of 17 patients with an average onset age of 8 (1-42) days were found. The average diagnosis age was ten months. Cholestasis was the dominant symptom of these infants. Thirteen variants were detected, of which c.379C > T was a hotspot variant (26.5% alleles, 9/34). Cholestatic CTX is usually underestimated, but it could be severe or even fatal in infancy. For outcomes, 5 suffered from liver failure (36%, 5/14), 1 still showed cholestasis (7%, 1/14), 7 were asymptomatic (50%, 7/14), and 1 presented seizure and developmental delay in later childhood (7%, 1/14). CONCLUSION Based on this infantile cohort, we concluded that it is necessary to consider the possibility of CTX caused by CYP27A1 gene variants for infants with cholestasis.
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Affiliation(s)
- Ping Zhang
- Center for Molecular Medicine and Key Laboratory of Birth Defects, Pediatrics Research Institute, Children's Hospital of Fudan University, Shanghai, China
| | - Jing Zhao
- Center for Pediatric Liver Diseases, Children's Hospital of Fudan University, Shanghai, China
| | - Xiao-Min Peng
- Center for Molecular Medicine and Key Laboratory of Birth Defects, Pediatrics Research Institute, Children's Hospital of Fudan University, Shanghai, China
| | - Yan-Yan Qian
- Center for Molecular Medicine and Key Laboratory of Birth Defects, Pediatrics Research Institute, Children's Hospital of Fudan University, Shanghai, China
| | - Xue-Mei Zhao
- Center for Molecular Medicine and Key Laboratory of Birth Defects, Pediatrics Research Institute, Children's Hospital of Fudan University, Shanghai, China
| | - Wen-Hao Zhou
- Center for Molecular Medicine and Key Laboratory of Birth Defects, Pediatrics Research Institute, Children's Hospital of Fudan University, Shanghai, China; Department of Neonates, Key Laboratory of Neonatal Diseases, Ministry of Health, Children's Hospital of Fudan University, Shanghai, China
| | - Jian-She Wang
- Center for Pediatric Liver Diseases, Children's Hospital of Fudan University, Shanghai, China
| | - Bing-Bing Wu
- Center for Molecular Medicine and Key Laboratory of Birth Defects, Pediatrics Research Institute, Children's Hospital of Fudan University, Shanghai, China.
| | - Hui-Jun Wang
- Center for Molecular Medicine and Key Laboratory of Birth Defects, Pediatrics Research Institute, Children's Hospital of Fudan University, Shanghai, China.
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12
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Liu BJ, Peng XM, Li JH. [Analysis of the Temporal and Spatial Variation of PM 2.5 in China Based on the LUR Model]. Huan Jing Ke Xue 2018; 39:5296-5307. [PMID: 30628372 DOI: 10.13227/j.hjkx.201805051] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
The land use regression (LUR) model is one of the most important systematic methods to simulate the temporal and spatial differentiation of the atmospheric pollutant concentration. To explore the adaptability of the LUR model to the simulation of air pollutants at the national scale in China and the temporal and spatial variation characteristics of fine air particulate matter (PM2.5) in China in 2015 and its correlation with different geographical elements, we built a LUR model. The LUR model is based on a geographically weighted algorithm using PM2.5 data acquired from the national control monitoring site in 2015 as the dependent variable and applying factors such as the type of land use, altitude, population, road traffic, and meteorological elements as independent variables. Based on model regression mapping, we obtained the distributions of monthly and annual PM2.5 concentrations nationwide in 2015 and analyzed the temporal and spatial variation characteristics of PM2.5 concentrations using the Hu line as a reference line. The results indicate that introducing the geographically weighted algorithm can significantly reduce the residual Moran's Ⅰ of the LUR model, weaken the spatial autocorrelation of residuals, and improve the coefficient of determination R2, which is better to reveal the complex relationship between the spatial distribution and impact factors of PM2.5. Cropland, forest, grass and urban industrial and residential land, and meteorological elements and major roads noticeably impact the PM2.5 concentration. Different spatial distributions of different geographical elements have distinct effects on PM2.5. The PM2.5 shows distinct temporal and spatial differences on both sides of the Hu line. The PM2.5 concentration is relatively high in developed cities with a large population and high industrialization levels. The concentration of PM2.5 is higher in winter and gradually decreases in autumn, spring, and summer.
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Affiliation(s)
- Bing-Jie Liu
- School of Forestry, Northeast Forestry University, Harbin 150040, China
| | - Xiao-Min Peng
- School of Geography and Ocean Science, Nanjing University, Nanjing 210023, China
| | - Ji-Hong Li
- School of Forestry, Northeast Forestry University, Harbin 150040, China
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13
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Peng XM, Cui YX, Cui LL, Zhou JW. [Analysis of pesticide poisoning in Ji'nan during 2012-2016]. Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi 2018; 36:198-201. [PMID: 29996221 DOI: 10.3760/cma.j.issn.1001-9391.2018.03.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To study the current situation and distribution characteristics of pesticide poisoning in Ji'nan area, and to provide the basis for formulating the policy of scientific prevention and control of pesticide poisoning. Methods: The cases of pesticide poisoning from 2012 to 2016 were collected from medical institutions in Ji'nan, and the data was subjected to statistical analysis. Results: From 2012 to 2016 in Ji'nan reported a total of 2 237 cases of pesticide poisoning, non productive pesticide poisoning cases (72.78%, 2 149/2 237) and mortality (17.73%, 381/2 149) was significantly higher than that of productive pesticide poisoning. The average age is 46.78±18.57. The highest mortality rate of pesticide poisoning is more than 70 age group of the non productive pesticide poisoning. Organophosphorus pesticides (67.68%, 1 514/2 237) are the main pesticides causing poisoning, followed by herbicide (23.74%, 531/2 237). The highest mortality rate of pesticide was Paraquat (36.45%, 160/439), the second is the dichlorvos (19.19%, 170/886). Conclusion: Pesticide poisoning is a public health problem and social problem which is harmful to the health of the residents in Ji'nan. It is necessary to strengthen the control and management of high toxic pesticides. Pay attention to the psychological intervention of elderly people to reduce the incidence of pesticide poisoning.
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Affiliation(s)
- X M Peng
- Jinan Center for Disease Prevention and Control, Jinan 250021, China
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14
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Ma CN, Peng XM, Wu SS, Zhang DT, Zhao JC, Lu GL, Pan Y, Cui SJ, Liu YM, Shi WX, Zhang M, Wang QY, Yang P. [Study on the super-antigen genes of group A Streptococcus pyogenes strains isolated from patients with scarlet fever and pharyngeal infection, in Beijing, 2015-2017]. Zhonghua Liu Xing Bing Xue Za Zhi 2018; 39:1375-1380. [PMID: 30453440 DOI: 10.3760/cma.j.issn.0254-6450.2018.10.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To analyze the characteristics of super-antigen (SAg) of group A Streptococcus pyogenes (GAS), isolated from patients with scarlet fever or pharyngeal infections in Beijing between 2015-2017. Methods: Throat swab specimens from patients with scarlet fever or pharyngeal infections were collected and tested for GAS. Eleven currently known SAg genes including SpeA, speC, speG, speH, speI, speJ, speK, speL, speM, smeZ and ssa were tested by real-time PCR while M protein genes (emm genes) were amplified and sequenced by PCR. Results: A total of 377 GAS were isolated from 6 801 throat swab specimens, with the positive rate as 5.5%. There were obvious changes noticed among speC, speG, speH and speK in three years. A total of 45 SAg genes profiles were observed, according to the SAgs inclusion. There were significant differences appeared in the frequencies among two of the highest SAg genes profiles between emm1 and emm12 strains (χ(2)=38.196, P<0.001; χ(2)=72.310, P<0.001). There also appeared significant differences in the frequencies of speA, speH, speI and speJ between emm1 and emm12 strains (χ(2)=146.154, P<0.001; χ(2)=52.31, P<0.001; χ(2)=58.43, P<0.001; χ(2)=144.70, P<0.001). Conclusions: Obvious changes were noticed among SAg genes including speC, speG, speH and speK from patients with scarlet fever or pharyngeal infections in Beijing between 2015-2017. SAg genes including speA, speH, speI and speJ appeared to be associated with the emm 1 and emm 12 strains. More kinds of SAg genes profiles were isolated form GAS but with no significant differences seen in the main SAg genes profiles, during the epidemic period.
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Affiliation(s)
- C N Ma
- Beijing Municipal Center for Disease Control and Prevention, Beijing Research Center for Preventive Medicine, Beijing 100013, China
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Peng XM, Li AC, Li XW. [Analysis on pathogenetic characteristics of newfound pneumoconiosis in Jinan, 2006 to 2014]. Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi 2016; 34:209-210. [PMID: 27220443 DOI: 10.3760/cma.j.issn.1001-9391.2016.03.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
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16
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Peng XM, Lei RX, Gu L, Ma HH, Xie QF, Gao ZL. Influences of MxA gene -88 G/T and IFN-gamma +874 A/T on the natural history of hepatitis B virus infection in an endemic area. Int J Immunogenet 2007; 34:341-6. [PMID: 17845304 DOI: 10.1111/j.1744-313x.2007.00696.x] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
The influence of human genetics on the natural history of hepatitis B virus (HBV) infection may be diminished in endemic areas because infection at a young age predisposes to chronic HBV infection. The present study aimed to address this issue through the determination of the influences of single nucleotide polymorphisms (SNPs) of myxovirus resistence-1 (MxA) -88 G/T and interferon (IFN)-gamma +874 A/T on the natural history of HBV infection in endemic regions. One hundred adult patients with self-limiting HBV infection (positive for both anti-HBs and anti-HBc) and 340 adult patients with persistent HBV infection were recruited from southern China, an endemic area with an HBsAg carrier rate of 17.8%. SNPs of MxA -88 G/T and interferon (IFN)-gamma +874 A/T were typed using a protocol based on competitively differentiated polymerase chain reaction. A highly significant difference in the distribution of MxA -88 G/T was observed between those with persistent and self-limiting HBV infections. The latter displayed a lower frequency of the GG genotype (41.0% vs. 52.9%, P = 0.036) and a higher frequency of the TT genotype (16.0% vs. 2.4%, P = 0.000), compared to patients with persistent infection. These differences were not gender- or age-specific. However, a significant distribution difference of IFN-gamma +874 A/T was not observed. Between two groups of patients, respectively, the distribution frequencies of the AA genotype (65.0% vs. 72.8%, P = 0.139) and the TT genotype (2.0% vs. 1.2%, P = 0.894) were found. These results suggest that MxA gene -88 G/T and IFN-gamma +874 A/T behave differently in endemic HBV infections. Further study is necessary to clarify the influences of human genetics on endemic HBV infections.
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Affiliation(s)
- X M Peng
- Department of Infectious Diseases, Third Affiliated Hospital, Sun Yat-Sen University, Guangzhou, Guangdong, China.
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17
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Wang X, Li M, Liao ZG, Yi XF, Peng XM. [Experimental study of restiffening of the rigor mortis]. Fa Yi Xue Za Zhi 2001; 17:202-4. [PMID: 12533869] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/28/2023]
Abstract
OBJECTIVE To observe changes of the length of sarcomere of rat when restiffening. METHODS We measured the length of sarcomere of quadriceps in 40 rats in different condition by scanning electron microscope. RESULTS The length of sarcomere of rigor mortis without destroy is obviously shorter than that of restiffening. CONCLUSION The length of sarcomere is negatively correlative to the intensity of rigor mortis. Measuring the length of sarcomere can determine the intensity of rigor mortis and provide evidence for estimation of time since death.
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Affiliation(s)
- X Wang
- West China Forensic Medical College, Sichuan University, Chengdu 610041
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18
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Peng XM, Wang ZF, Tian GY. [Physico-chemical properties and activity of glycoconjugate LbGp2 from Lycium barbarum L]. Yao Xue Xue Bao 2001; 36:599-602. [PMID: 12579937] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/28/2023]
Abstract
AIM To isolate and purify a glycoconjugate (LbGp2) from the fruit of Lycium barbarum L. and study its immunoactivity and antioxidative activity. METHODS By means of gel permeation chromatography, LbGp2 was purified. Based on HPLC, CE, GC, SEC and component analysis and so on, its physico-chemical properties were studied. RESULTS Molecular weights of LbGp2 was 68.2 ku and its carbohydrate content was up to 90.7%. Component analysis showed that it composed of Ara and Gal in a molar ratio of 3:4, and 18 kinds of amino acids. The immunologic function and bioactivity of Lbp2 has been studied preliminarily. Lbp2 was shown to increase rate of phagocyticaction and phagocytic index, promote lymphocyte translation and accelerate the production of serum hemolysin. LbGp2 has distinct effect of antioxidation and the superoxide anion produced by DMSO-NaOH system was scavenged effectively. CONCLUSION LbGp2 was shown to be a kind of homogeneous glycoconjugate with good immunoactivity and antioxidative activity.
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Affiliation(s)
- X M Peng
- Shanghai Institute of Organic Chemistry, State Key Laboratory of Bio-organic Chemistry, Academia Sinica, Shanghai 200032, China
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Wang ZF, Peng XM, Huang LJ, Peng ZY, Tian GY. [Structure elucidation of glycan of a glycoconjugate SPPA-1 isolated from Spirulina platensis]. Yao Xue Xue Bao 2001; 36:356-9. [PMID: 12584858] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/28/2023]
Abstract
AIM To elucidate the structure of the glycan of SPPA-1, a glycoconjugate isolated from Spirulina platensis. METHODS Methylation analysis, GC/MS, and 1D, 2DNMR techniques were used to determine the structures of the glycoconjugate (SPPA-1). RESULTS SPPA-1 was only composed of alpha-D-glucose and shown to be a (1-->4) linked alpha-D-glucan to which a few glucosyl side chains are attached at O-6 of the glucosyl residues of the main chain. CONCLUSION The glycan of SPPA-1 is a new glucan.
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Affiliation(s)
- Z F Wang
- Center of Biological Science and Engineering, South China University of Technology, Guangzhou 510640, China
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20
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Yu XJ, Peng XM, Xiao F, Wu J, Wu MY. [The SEM observation of brain tissues and vascular corrosion cast of closed diffuse brain injuries]. Fa Yi Xue Za Zhi 1999; 15:3-4, 62. [PMID: 12536385] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/28/2023]
Abstract
The morphologic changes of the closed injured brain of rats were observed by SEM. The rats either died immediately after conclusive injuries or were killed after 5 minutes to 5 days after injuries. The main changes were as follows: the diffuse disorder, twist, wave-like distortion and break of neuron fibers; axonal swelling; formation of axonal retraction balls; stripping and denotation of myelin sheath The ball-like swelling of neuron, break of neuron membrane and vascular wall, and microthrombus formations were also observed. These damages worsened with prolongation of surviving time of the rats. The axonal retraction ball appeared 8 hours after the injury and was approximately 3-5 cm in diameter, and developed to 7-8 cm after 3-5 days. It is observed that frontal lobe, cerebellum and brain stem were severely damaged.
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Affiliation(s)
- X J Yu
- Department of Forensic Medicine, Jilin Medical College, Jilin 132001, P. R. China
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21
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Yu RC, Peng XM, Rao XQ. [Studies of guben quyu No I combined with chemotherapy in treating cancer]. Zhongguo Zhong Xi Yi Jie He Za Zhi 1994; 14:392-5. [PMID: 7950221] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
UNLABELLED Cancer patients with Qi-Deficiency and Blood Stasis (QDBS) syndrome were studied, and stress was put on the observation of the Guben Quyu No. I, which was used in combining with chemotherapy for synergistic effect and attenuation of toxicity. THE RESULTS QDBS syndrome often existed in cancer patients, and chemotherapy exacerbate the occurrence rate of QDBS syndrome. QDBS syndrome is somehow related to immuno-deficiency and blood hypercoagulability, the method of Yiqi Huoxue (YQHX) which used to be combined with chemotherapy could not only reduce the toxic-side effects of chemotherapy, but also improve the cellular immune function and hemorheology. Since the cellular immuno-deficiency and blood hypercoagulability were associated with recurrence and metastasis of cancer. It is considered that the Guben Quyu No I possibly is to reduce the occurring of the above-mentioned consequences.
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Long RZ, Yin R, He HZ, Peng XM. [Airborne allergenic pollens in the southern area of Chengdu]. Hua Xi Yi Ke Da Xue Xue Bao 1986; 17:60-2. [PMID: 3804312] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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23
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Xiao SR, Li WJ, Song LC, Yan ZJ, Wang CQ, Hu RZ, Peng XM. [Manifestations, diagnosis and therapy of burning sensation disease]. Acta Acad Med Wuhan 1983; 3:175-9. [PMID: 6688665 DOI: 10.1007/bf02856654] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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