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Du J, Chen X, Wang Y, Yang Z, Wu D, Zhang Q, Liu Y, Zhu X, Jiang S, Cao Y, Chen C, Du L, Zhou W, Lee SK, Xia H, Hei M. Regional variations in retinopathy of prematurity incidence for preterm infants <32 weeks' gestation in China. Public Health 2024; 226:91-98. [PMID: 38029699 DOI: 10.1016/j.puhe.2023.10.033] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2023] [Revised: 09/30/2023] [Accepted: 10/13/2023] [Indexed: 12/01/2023]
Abstract
OBJECTIVES National-level data on the incidence of retinopathy of prematurity (ROP) in different regions of China is insufficient. This study aimed to compare ROP incidences and care practices in different regions of China and their relationship with regional gross domestic product (GDP) per capita. STUDY DESIGN Retrospective cohort study. METHODS All infants born at <32 weeks gestational age (GA) and admitted to 70 neonatal intensive care units (NICUs) from January 1, 2019, to December 31, 2020, were enrolled. Hospitals were categorised into three regional groups according to geographical locations and GDP per capita from high to low: Eastern, Central, and Western China. The incidence of death or ROP, and care practices were compared among the groups. RESULTS A total of 18,579 infants were enrolled. Median GA was 29.9 (interquartile range 28.4-31.0) weeks and birth weight was 1318.1 (317.2) g. The percentage of GA <28 weeks, complete administration of antenatal steroids, and weight gain velocity during NICU stay were highest in Eastern China and lowest in Western China (all P < 0.01). In Eastern, Central, and Western China, the rates of death or any stage of ROP were 33.3%, 38.5%, and 39.2%, respectively (P < 0.01). CONCLUSIONS There were considerable regional disparities in ROP incidence in preterm infants with GA <32 weeks in China. The incidence of death or ROP ranged from high to low in Western, Central, and Eastern China.
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Affiliation(s)
- J Du
- Neonatal Center, Beijing Children's Hospital, Capital Medical University, Beijing, China; National Center of Children's Health, Beijing, China
| | - X Chen
- Department of Neonatology, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Y Wang
- NHC Key Laboratory of Neonatal Diseases, Fudan University, Children's Hospital of Fudan University, Shanghai, China; Department of Health Research Methods, Evidence, and Impact, McMaster University, Hamilton, Ontario, Canada
| | - Z Yang
- Neonatal Center, Beijing Children's Hospital, Capital Medical University, Beijing, China; National Center of Children's Health, Beijing, China
| | - D Wu
- Neonatal Center, Beijing Children's Hospital, Capital Medical University, Beijing, China; National Center of Children's Health, Beijing, China
| | - Q Zhang
- Neonatal Center, Beijing Children's Hospital, Capital Medical University, Beijing, China; National Center of Children's Health, Beijing, China
| | - Y Liu
- Neonatal Center, Beijing Children's Hospital, Capital Medical University, Beijing, China; National Center of Children's Health, Beijing, China
| | - X Zhu
- Neonatal Center, Beijing Children's Hospital, Capital Medical University, Beijing, China; National Center of Children's Health, Beijing, China
| | - S Jiang
- NHC Key Laboratory of Neonatal Diseases, Fudan University, Children's Hospital of Fudan University, Shanghai, China; Department of Neonatology, Children's Hospital of Fudan University, Shanghai, China
| | - Y Cao
- NHC Key Laboratory of Neonatal Diseases, Fudan University, Children's Hospital of Fudan University, Shanghai, China; Department of Neonatology, Children's Hospital of Fudan University, Shanghai, China
| | - C Chen
- NHC Key Laboratory of Neonatal Diseases, Fudan University, Children's Hospital of Fudan University, Shanghai, China; Department of Neonatology, Children's Hospital of Fudan University, Shanghai, China
| | - L Du
- Neonatal Intensive Care Unit, Children's Hospital, Zhejiang University School of Medicine, Hangzhou, China; National Clinical Research Center for Child Health, National Children's Regional Medical Center, Hangzhou, China
| | - W Zhou
- NHC Key Laboratory of Neonatal Diseases, Fudan University, Children's Hospital of Fudan University, Shanghai, China; Department of Neonatology, Children's Hospital of Fudan University, Shanghai, China
| | - S K Lee
- Maternal-Infant Care Research Centre and Department of Pediatrics, Mount Sinai Hospital, Toronto, Ontario, Canada
| | - H Xia
- Department of Neonatology, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - M Hei
- Neonatal Center, Beijing Children's Hospital, Capital Medical University, Beijing, China; National Center of Children's Health, Beijing, China.
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Xia H, Yuan Z. [Discovery and distribution of and response to arbovirus in China over the past seven decades]. Zhongguo Xue Xi Chong Bing Fang Zhi Za Zhi 2023; 35:427-436. [PMID: 38148530 DOI: 10.16250/j.32.1374.2023152] [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] [Subscribe] [Scholar Register] [Indexed: 12/28/2023]
Abstract
Arbovirus is a group of virus transmitted by blood-sucking arthropod bites, which infects both arthropods and vertebrates. More than 600 arboviruses have been characterized worldwide until now, including 65 highly pathogenic viruses, which pose a high threat to public health. The risk of arbovirus transmission is increasing due to climate change, international trade and urbanization. The review summarizes the discovery and distribution of emerging and reemerging arboviruses and novel arboviruses with potential pathogenic risks, and proposes responses to the arbovirus transmission risk, so as to provide insights into the research and management of arboviruses and arthropod-borne infectious diseases in China.
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Affiliation(s)
- H Xia
- Wuhan Institute of Virology, Chinese Academy of Sciences, Wuhan, Hubei 430071, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Z Yuan
- Wuhan Institute of Virology, Chinese Academy of Sciences, Wuhan, Hubei 430071, China
- University of Chinese Academy of Sciences, Beijing 100049, China
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Zhang Z, Wu C, Xia H, Yu X, Zhao B, Chen X. Clinical analysis, diagnosis, and treatment strategies for otogenic brain abscesses. Ear Nose Throat J 2023:1455613231205442. [PMID: 37902176 DOI: 10.1177/01455613231205442] [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] [Subscribe] [Scholar Register] [Indexed: 10/31/2023] Open
Abstract
Objective: To explore the clinical features, diagnosis, and treatment strategies for otogenic brain abscesses (OBA). Methods: Clinical data from 10 patients with OBA were analyzed retrospectively. Clinical characteristics, diagnosis, and treatment experiences were summarized. Results: Two were first diagnosed in the Department of Otorhinolaryngology, 5 in Neurosurgery, and 3 in other departments. There were 6 cases of temporal lobe abscess and 4 cases of cerebellar abscesses. Five cases were accompanied by 1 or more intracranial complications. Headache is a common presentation in all cases. The main pathogenic bacteria were anaerobic bacteria. All patients had no previous ear or brain surgery history, and no history of traumatic brain injury, 7 received surgical treatment in the neurosurgery and/or otolaryngology department. Two patients died, the other 8 fully recovered and so were discharged. Conclusions: Diagnosis and treatment of OBA must involve multiple departments. Multidisciplinary consultation (MDT) is crucial to the success of the first OBA diagnosis. The diagnosis and treatment team develops personalized treatment plans by integrating MDT treatment opinions and combining the actual condition of patients, thereby making the diagnosis and treatment of OBA accurate and timely.
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Affiliation(s)
- Ziheng Zhang
- Department of Otorhinolaryngology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Cong Wu
- Department of Otorhinolaryngology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Haiou Xia
- School of Foreign Language Studies, Wenzhou Medical University, China
| | - Xinru Yu
- Department of Otorhinolaryngology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Baojun Zhao
- Department of Otorhinolaryngology, The Aksu First People's Hospital of Xinjiang, XinJiang, China
| | - Xiaoyun Chen
- Department of Otorhinolaryngology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
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Ren Z, Zhang A, Fan X, Feng J, Xia H. Utility of the capability, opportunity, and motivation behaviour (COM-B) model in explaining the negative association between pre-pregnancy body mass index and exclusive breastfeeding at six weeks postpartum. Appetite 2023; 188:106631. [PMID: 37302414 DOI: 10.1016/j.appet.2023.106631] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2022] [Revised: 05/21/2023] [Accepted: 06/08/2023] [Indexed: 06/13/2023]
Abstract
The mechanisms underlying the negative associations between pre-pregnancy body mass index (BMI) and exclusive breastfeeding remain poorly understood. Thus, the study aimed to determine whether the negative associations between high pre-pregnancy BMI and exclusive breastfeeding at six weeks postpartum are mediated by components of the capability, opportunity, and motivation behaviour (COM-B) model. In this prospective observational study, we assigned 360 primiparous women to a pre-pregnancy overweight/obese group (n = 180) and a normal-BMI group (n = 180). A structural equation model was designed to study how capabilities (onset of lactogenesis II, perceived milk supply, breastfeeding knowledge, and postpartum depression), opportunities (pro-breastfeeding hospital practices, social influence, social support), and motivations (breastfeeding intention, breastfeeding self-efficacy, and attitudes towards breastfeeding) affected exclusive breastfeeding at six weeks postpartum in groups of women with different pre-pregnancy BMIs. In all, 342 participants (95.0%) possessed complete data. Women with high pre-pregnancy BMI were less likely to exclusively breastfeed at six weeks postpartum than women with a normal BMI were. We observed a significant negative direct effect of high pre-pregnancy BMI on exclusive breastfeeding at six weeks postpartum and a significantly negative indirect effect of high pre-pregnancy BMI via the explanatory mediating variables of capabilities (onset of lactogenesis II, perceived milk supply, and breastfeeding knowledge) and motivations (breastfeeding self-efficacy) on exclusive breastfeeding at six weeks postpartum. Our findings support certain capabilities (onset of lactogenesis II, perceived milk supply, and breastfeeding knowledge) and motivations (breastfeeding self-efficacy), partially explaining the negative association between high pre-pregnancy BMI and exclusive breastfeeding outcome. We suggest that interventions aimed at promoting exclusive breastfeeding among women with high pre-pregnancy BMI should address the capacity and motivation factors specific to this population.
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Affiliation(s)
- Ziqi Ren
- School of Nursing, Fudan University, 305 Fenglin Road, Xuhui District, 200032, Shanghai, China.
| | - Aixia Zhang
- Department of Nursing, The Women's Hospital of Nanjing Medical University, 123 Tianfei Lane, Mochou Road, Qinhuai District, 210004, Nanjing, China.
| | - Xuemei Fan
- Department of Nursing, The Women's Hospital of Nanjing Medical University, 123 Tianfei Lane, Mochou Road, Qinhuai District, 210004, Nanjing, China.
| | - Jingyi Feng
- Faculty of Science, The Hong Kong Polytechnic University, 11 Yuk Chai Road, Hung Hom, 999077, Hong Kong, China.
| | - Haiou Xia
- School of Nursing, Fudan University, 305 Fenglin Road, Xuhui District, 200032, Shanghai, China.
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Wan J, Xia H. How Advanced Practice Nurses Can Be Better Managed in Hospitals: A Multi-Case Study. Healthcare (Basel) 2023; 11:healthcare11060780. [PMID: 36981438 PMCID: PMC10048132 DOI: 10.3390/healthcare11060780] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2023] [Revised: 03/03/2023] [Accepted: 03/06/2023] [Indexed: 03/30/2023] Open
Abstract
The labor markets for care professionals are a perennial topic of discussion. Advanced practice nurses (APN), as an advanced role in nursing, arose to solve the shortage of primary health care professionals. Prior research has advanced several areas of exploration for APNs' training or employing methods in Chinese hospitals. However, this leaves a key imperative unexplored: the management strategy of APNs in hospitals. The present study seeks to explore the management strategy of APNs in Chinese hospitals. The resource orchestration theory served as the guide as the multi-case study method investigated 18 case hospitals, gathered information from a variety of case data sources, and summarized the management strategies for hospitals' advanced practice nurses. Four types of APN management strategies-expert customized type, hierarchical linkage type, multidisciplinary benefit type, and professional penetration type-have been identified through resource orchestration. Hospitals can utilize the APN management strategy model as a guide to manage APNs in accordance with the unique characteristics of APN resources.
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Affiliation(s)
- Jia Wan
- School of Nursing, Fudan University, Shanghai 200437, China
| | - Haiou Xia
- School of Nursing, Fudan University, Shanghai 200437, China
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Xia H, Zhu X, Zhu C. Associations between pro-inflammatory cytokines and fatigue in pregnant women. PeerJ 2022; 10:e13965. [PMID: 36193420 PMCID: PMC9526404 DOI: 10.7717/peerj.13965] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2022] [Accepted: 08/08/2022] [Indexed: 01/19/2023] Open
Abstract
Background Fatigue is one of the most prevalent symptoms among pregnant women. In patients with various diseases, pro-inflammatory cytokines are associated with fatigue; however, such associations are unknown in pregnant women. Objectives The objective of this study was to examine the associations between pro-inflammatory cytokines and prenatal fatigue. Methods A cross-sectional study was conducted on 271 pregnant Chinese women in their third trimester of pregnancy. Patient-reported Outcome Measurement Information System (PROMIS) was used to evaluate women's prenatal fatigue. Using enzyme-linked immunosorbent assay (ELISA), the serum concentrations of four pro-inflammatory cytokines, including tumor necrosis factor alpha (TNF-α), interleukin 1 beta (IL-1β), interleukin 6 (IL-6) and interleukin 8 (IL-8), were measured. The data was analyzed by correlation analysis and general linear regression analysis. Results In this sample, the mean (standard deviation) of fatigue scores was 51.94 (10.79). TNF-α (r = 0.21, p < 0.001), IL-6 (r = 0.134, p = 0.027) and IL-8 (r = 0.209, p = 0.001) were positively correlated to prenatal fatigue, although IL-1β was not. TNF-α (β = 0.263, p < 0.001), along with sleep quality (β = 0.27, p < 0.001) and depression (β = 0.376, p < 0.001) independently predicted prenatal fatigue. Conclusions TNF-α was identified as an independent biomarker for prenatal fatigue in our study. Reducing pro-inflammatory cytokines may be a unique method for lowering prenatal fatigue and, consequently, enhancing mother and child health.
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Affiliation(s)
- Haiou Xia
- School of Nursing, Fudan University, Shanghai, China
| | - Xiaoxiao Zhu
- School of Nursing, Fudan University, Shanghai, China
| | - Chunxiang Zhu
- Obstetrical Ward, Obstetrics & Gynecology Hospital of Fudan University, Shanghai, China
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Santillo C, Wang Y, Buonocore GG, Gentile G, Verdolotti L, Kaciulis S, Xia H, Lavorgna M. Hybrid Graphenene Oxide/Cellulose Nanofillers to Enhance Mechanical and Barrier Properties of Chitosan-Based Composites. Front Chem 2022; 10:926364. [PMID: 35958229 PMCID: PMC9361047 DOI: 10.3389/fchem.2022.926364] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2022] [Accepted: 06/16/2022] [Indexed: 11/23/2022] Open
Abstract
Chitosan-based hybrid nanocomposites, containing cellulose nanocrystals (CNCs), graphene oxide (GO), and borate as crosslinking agents, were successfully prepared by solution-casting technique. The synergistic effect of the two fillers, and the role of the cross-linker, in enhancing the structural and functional properties of the chitosan polymer, was investigated. XPS results confirm the chemical interaction between borate ions and hydroxyl groups of chitosan, GO, and CNCs. The morphological characterization shows that the GO sheets are oriented along the casting surface, whereas the CNC particles are homogenously distributed in the sample. Results of tensile tests reveal that the presence of graphene oxide enhances the elastic modulus, tensile strength, elongation at break, and toughness of chitosan, while cellulose and borate induce an increase in the elastic modulus and stress at the yield point. In particular, the borate-crosslinked chitosan-based sample containing 0.5 wt% of GO and 0.5 wt% of CNCs shows an elongation at a break value of 30.2% and a toughness value of 988 J*m−3 which are improved by 124% and 216%, respectively, compared with the pristine chitosan. Moreover, the water permeability results show that the presence of graphene oxide slightly increases the water barrier properties, whereas the borate and cellulose nanocrystals significantly reduce the water vapor permeability of the polymer by about 50%. Thus, by modulating the content of the two reinforcing fillers, it is possible to obtain chitosan-based nanocomposites with enhanced mechanical and water barrier properties which can be potentially used in various applications such as food and electronic packaging.
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Affiliation(s)
- C. Santillo
- Institute for Polymers, Composites and Biomaterials, National Research Council of Italy, Naples, Italy
| | - Yinglei Wang
- Xi’an Modern Chemistry Research Institute, Xi’an, China
| | - G. G. Buonocore
- Institute for Polymers, Composites and Biomaterials, National Research Council of Italy, Naples, Italy
- *Correspondence: G. G. Buonocore,
| | - G. Gentile
- Institute for Polymers, Composites and Biomaterials, National Research Council of Italy, Naples, Italy
| | - L. Verdolotti
- Institute for Polymers, Composites and Biomaterials, National Research Council of Italy, Naples, Italy
| | - Saulius Kaciulis
- Institute for the Study of Nanostructured Materials, National Research Council, Rome, Italy
| | - H. Xia
- Institute for Polymers, Composites and Biomaterials, National Research Council of Italy, Naples, Italy
- State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute, Sichuan University, Chengdu, China
| | - M. Lavorgna
- Institute for Polymers, Composites and Biomaterials, National Research Council of Italy, Naples, Italy
- Institute of Polymers, Composites and Biomaterials UOS Lecco, National Research Council, Lecco, Italy
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Xia H, Chen YX, Wang R, Lu J, Wang XT, Xu K. Evaluating short-term outcomes of the value of sound touch elastography (STE) following the treatment for Budd-Chiari syndrome (BCS): a case series study. Clin Radiol 2022; 77:e606-e612. [PMID: 35715241 DOI: 10.1016/j.crad.2022.05.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2021] [Accepted: 05/13/2022] [Indexed: 11/28/2022]
Abstract
AIM To investigate the value of sound touch elastography (STE) in the evaluation of short-term therapeutic effect of Budd-Chiari syndrome (BCS) by measuring liver stiffness (LS), and in addition, to analyse the relationships between liver function, pressure gradient of the hepatic veins, and LS. MATERIALS AND METHODS A case series study was conducted at Affiliated Hospital of Xuzhou Medical University from August 2020 to December 2020. Patients diagnosed with BCS were recruited prospectively and grouped according to Child-Pugh grade before endovascular therapy. LS was measured using STE before and after therapy. Comparisons between the LS and hepatic venous pressure gradient (HVPG) changes of patients were tested with paired sample t-tests. RESULTS A total of 46 patients (23 males and 23 females) were included in this study. According to the Child-Pugh scoring criteria, 24 patients were classified as grade A, 16 as grade B, and 6 as grade C. LS was significantly different between the three groups (F = 127.01, p<0.001). Post-treatment LS was significantly lower than pre-treatment (p<0.001). The mean HVPG before treatment was 13.02 ± 3.82 mmHg and decreased after intervention (p<0.001). CONCLUSION The STE is a potential tool for evaluating short-term therapeutic effect of BCS patients.
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Affiliation(s)
- H Xia
- Department of Ultrasound, Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu, 21002, People's Republic of China
| | - Y-X Chen
- Department of Ultrasound, Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu, 21002, People's Republic of China
| | - R Wang
- Department of Ultrasound, Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu, 21002, People's Republic of China
| | - J Lu
- Department of Ultrasound, Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu, 21002, People's Republic of China
| | - X-T Wang
- Department of Ultrasound, Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu, 21002, People's Republic of China
| | - K Xu
- Department of Radiology, Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu, 221002, People's Republic of China.
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Zhu X, Xia H. Trajectory patterns and factors influencing perinatal fatigue among Chinese women from late pregnancy to 6 months after delivery. PeerJ 2022; 10:e13387. [PMID: 35642197 PMCID: PMC9148558 DOI: 10.7717/peerj.13387] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2021] [Accepted: 04/15/2022] [Indexed: 01/14/2023] Open
Abstract
Background Perinatal fatigue among women is related to the clinical outcomes of mothers and infants. Perinatal fatigue changes over time, and the trajectory varies according to the predictors and outcomes of the mothers. This, however, has not been documented in any study. Objectives This study aimed to identify and characterize the trajectory patterns of perinatal fatigue among women from late pregnancy to 6 months after delivery. Methods We used growth mixture modeling to estimate the trajectory of perinatal fatigue at 28 gestational weeks (T0), 37 gestational weeks (T1), 3 days (T2), 1 week (T3), 6 weeks (T4), and 6 months (T5) after delivery with (n = 1,030). The Mann-Whitney U test and binary logistic regression were used to tie the selected trajectory classes to predictors and outcomes. Results There were two distinct patterns of perinatal fatigue in women: "persistently high" (11.1%, n = 114) and "persistently low" (88.9%, n = 916). Levels of perinatal fatigue among women in the "persistently high" group were higher than those in the "persistently low" group across the six measurements. Complications, fatigue at T0, and employment status in late pregnancy were all significant predictors of trajectories. Additionally, the "persistently high" group had a greater prevalence of difficult baby care and weight retention and a lower prevalence of exclusive breastfeeding. Conclusions Our study proved the heterogeneity and characteristics of perinatal fatigue among women. Future research should concentrate on developing intervention packages targeted at specific individuals in order to alleviate perinatal fatigue in women.
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Ren Z, Zhang A, Zhang J, Wang R, Xia H. Role of Perinatal Biological Factors in Delayed Lactogenesis II Among Women With Pre-pregnancy Overweight and Obesity. Biol Res Nurs 2022; 24:459-471. [PMID: 35505584 DOI: 10.1177/10998004221097085] [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] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Abstract
BACKGROUND Pre-pregnancy overweight and obesity are negatively associated with delayed onset of lactogenesis II (OL), but the mechanisms by which these conditions affect OL are still unclear. OBJECTIVES To identify biological factors related to pre-pregnancy overweight/obesity and determine whether these biological factors were associated with delayed OL in this population. METHODS In this prospective observational study, we assigned 72 primipara to a pre-pregnancy overweight/obese group (n = 36) and a normal-weight group (n = 36). Blood samples were collected at 37 w of gestation and 48 h postpartum and assayed for levels of the following hormones: leptin, insulin, estradiol, prolactin (PRL), progesterone, and oxytocin. The primary outcome was timing of OL, estimated by maternal perception of breast fullness. We used linear-regression analysis to determine associations between hormones and delayed OL. RESULTS Sixty-three participants (87.5%) had complete data. OL occurred later in overweight/obese than in normal-weight women (p < .001). Compared with the normal-weight group, the overweight/obese group showed higher leptin levels at both times of observation and exhibited a slower drop in estrogen concentrations from 37 w of gestation to 48 h postpartum (all p < .05). After adjusting for confounding factors, leptin concentrations in late pregnancy and the magnitudes of decline in estrogen concentrations at 48 h postpartum were correlated with OL. CONCLUSION Women who were overweight/obese before pregnancy had elevated leptin levels in late pregnancy and a delayed decline in estrogen concentrations at 48 h postpartum. Both of these phenomena were related to delayed OL in this population.
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Affiliation(s)
- Ziqi Ren
- School of Nursing, 12478Fudan University, Shanghai, China
| | - Aixia Zhang
- Department of Nursing, 159379Nanjing Medical University Affiliated Healthcare Hospital for Women and Infants, Nanjing, China
| | - Jingjing Zhang
- Department of Nursing, 159379Nanjing Medical University Affiliated Healthcare Hospital for Women and Infants, Nanjing, China
| | - Rui Wang
- Department of Nursing, 159379Nanjing Medical University Affiliated Healthcare Hospital for Women and Infants, Nanjing, China
| | - Haiou Xia
- School of Nursing, 12478Fudan University, Shanghai, China
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Davoodianidalik M, Punzmann H, Kellay H, Xia H, Shats M, Francois N. Fluctuation-Induced Interaction in Turbulent Flows. Phys Rev Lett 2022; 128:024503. [PMID: 35089756 DOI: 10.1103/physrevlett.128.024503] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/22/2021] [Revised: 10/11/2021] [Accepted: 12/15/2021] [Indexed: 06/14/2023]
Abstract
Fluctuation-induced forces are observed in numerous physical systems spanning from quantum to macroscopic scale. However, there is as yet no experimental report of their existence in hydrodynamic turbulence. Here, we present evidence of an attraction force mediated via turbulent fluctuations by using two walls locally confining 2D turbulence. This long-range interaction is a function of the wall separation and the energy injection rate in the turbulent flow. As the wall spacing decreases, the confined flow becomes less energetic and more anisotropic in the bounded domain, producing stronger attraction. The mechanism of force generation is rooted in a nontrivial fluid-wall coupling where coherent flow structures are guided by the cavity walls. For the narrowest cavities studied, a resonance phenomenon at the flow forcing scale leads to a complex short-range interaction. The results could be relevant to problems encountered in a range of fields from industrial multiphase flows to modeling of planetary formation.
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Affiliation(s)
- M Davoodianidalik
- Research School of Physics, The Australian National University, Canberra ACT 2601, Australia
| | - H Punzmann
- Research School of Physics, The Australian National University, Canberra ACT 2601, Australia
| | - H Kellay
- Laboratoire Ondes et Matiere d'Aquitaine, UMR 5798, CNRS, Universite de Bordeaux, 33405 Talence, France
| | - H Xia
- Research School of Physics, The Australian National University, Canberra ACT 2601, Australia
| | - M Shats
- Research School of Physics, The Australian National University, Canberra ACT 2601, Australia
| | - N Francois
- Research School of Physics, The Australian National University, Canberra ACT 2601, Australia
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Pan YJ, Chen R, Xu Y, Xia H, Xu C, Yuan W. [Association between CD137 and ischemia-reperfusion injury in patients with acute ST-segment elevation myocardial infarction]. ZHONGHUA XIN XUE GUAN BING ZA ZHI 2021; 49:1198-1205. [PMID: 34905897 DOI: 10.3760/cma.j.cn112148-20210517-00425] [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: 06/14/2023]
Abstract
Objective: To explore the relationship between the levels of serum soluble CD137 (sCD137) and membrane-bound CD137 (mCD137) and the occurrence of ischemia reperfusion injury (IRI) in patients with acute ST-segment elevation myocardial infarction (STEMI). Methods: This is a cross-sectional study. Consecutive patients with acute STEMI, who underwent emergency percutaneous coronary intervention (PCI) in the Department of Cardiology, Jiangsu University Affiliated Hospital from May 2019 to September 2020, were enrolled. According to the absence or presence of IRI, patients were divided into IRI group and non-IRI group. Clinical data of the two groups were collected and compared. sCD137 level was detected by enzyme linked immunosorbent assay. Ficoll density gradient centrifugation was used to separate peripheral blood mononuclear cells (PBMC) and RNA was extracted, mCD137 mRNA expression level was detected by PCR. Serum sCD137 levels and the mCD137 mRNA levels of PBMC before, after PCI and 24 hours after PCI were compared. The correlation between serum sCD137 level, PBMC mCD137 mRNA level and clinical indicators was observed. The univariate and multivariate logistic binary regression analyses were performed to evaluate the related risk factors of IRI. ROC curve was used to analyze the predictive value of defined parameters for IRI. Results: A total of 112 STEMI patients were enrolled. There were 42 cases (of which 33 were males (78.6%), mean age was (58.6±12.7) years) in non-IRI group and 70 cases(of which 56 were males (80.0%), mean age was (64.5±11.6) years) in IRI group. Compared with the non-IRI group, patients in the IRI group had longer hospital stays, older age, lower rates of obesity, lower systolic and diastolic blood pressure at admission, higher proportion of the the right coronary artery as culprit vessel, lower rate of the use of angiotensin-converting enzyme inhibitor/angiotensin-Ⅱ receptor blocker/angiotensin receptor neprilysin inhibitor, higher levels of urea nitrogen and creatinine, lower glomerular filtration rate, lower triglycerides, higher D-dimer and B-type natriuretic peptidemax, higher proportion of Killip grade Ⅳ and cardiovascular adverse events (all P<0.05). sCD137 levels at the preoperative, postoperative and 24 hours after surgery were significantly higher in the IRI group than in the non-IRI group, while the mRNA levels of CD137 was similar between the two groups. The level of sCD137 in patients after PCI was lower than that before operation, the level of mCD137 mRNA was higher than that before operation (P<0.05). Serum sCD137 levels were positively correlated with hospitalization days, age, B-type natriuretic peptide, creatinine, ischemic time, C Reactive protein (CRP) and CRP/albumin (P<0.05), and negatively correlated with body mass index, glomerular filtration rate and albumin (P<0.05). The mCD137 mRNA expression level of PBMC was positively correlated with hospital stay, age, B-type natriuretic peptide, ischemic time, CRP and CRP/albumin (P<0.05), and negatively correlated with body mass index, glomerular filtration rate, albumin (P<0.05). Multivariate logistic regression analysis showed that higher sCD137 (OR=1.038, 95%CI: 1.009-1.069), aspartate aminotransferase, (OR=1.029, 95%CI: 1.009-1.050) and lower albumin (OR=0.829, 95%CI: 0.703-0.829) before surgery were independent risk factors of IRI (P<0.05). Receiver operating characteristic curve showed that the area under the curve of sCD137 was 0.672 (95%CI: 0.574-0.770, P=0.002) for the prediction of IRI, the best cut-off value was 28.43×10-3 μg/L with sensitivity of 95.2% and specificity of 48.6%. Conclusion: The significantly increased level of sCD137 in acute STEMI patients is positively correlated with reperfusion injury, which is an independent risk factor of IRI and may be related to the prognosis of patients with IRI.
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Affiliation(s)
- Y J Pan
- Department of Cardiology, Affiliated Hospital of Jiangsu University, Zhenjiang 212001, China
| | - R Chen
- Department of Cardiology, Affiliated Hospital of Jiangsu University, Zhenjiang 212001, China
| | - Y Xu
- Department of Cardiology, Affiliated Hospital of Jiangsu University, Zhenjiang 212001, China
| | - H Xia
- Department of Cardiology, Affiliated Hospital of Jiangsu University, Zhenjiang 212001, China
| | - C Xu
- Department of Cardiology, Affiliated Hospital of Jiangsu University, Zhenjiang 212001, China
| | - W Yuan
- Department of Cardiology, Affiliated Hospital of Jiangsu University, Zhenjiang 212001, China
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Zhao HC, Xia H, Hu S, Lv YY, Zhao ZR, He J, Liang E, Ni G, Chen LY, Qiu XP, Zhou SM, Zhao HB. Large ultrafast-modulated Voigt effect in noncollinear antiferromagnet Mn 3Sn. Nat Commun 2021; 12:5266. [PMID: 34489461 PMCID: PMC8421456 DOI: 10.1038/s41467-021-25654-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2021] [Accepted: 08/18/2021] [Indexed: 11/15/2022] Open
Abstract
The time-resolved magneto-optical (MO) Voigt effect can be utilized to study the Néel order dynamics in antiferromagnetic (AFM) materials, but it has been limited for collinear AFM spin configuration. Here, we have demonstrated that in Mn3Sn with an inverse triangular spin structure, the quench of AFM order by ultrafast laser pulses can result in a large Voigt effect modulation. The modulated Voigt angle is significantly larger than the polarization rotation due to the crystal-structure related linear dichroism effect and the modulated MO Kerr angle arising from the ferroic ordering of cluster magnetic octupole. The AFM order quench time shows negligible change with increasing temperature approaching the Néel temperature (TN), in markedly contrast with the pronounced slowing-down demagnetization typically observed in conventional magnetic materials. This atypical behavior can be explained by the influence of weakened Dzyaloshinskii–Moriya interaction rather than the smaller exchange splitting on the diminished AFM order near TN. The temperature-insensitive ultrafast spin manipulation can pave the way for high-speed spintronic devices either working at a wide range of temperature or demanding spin switching near TN. Mn3Sn is an anti-ferromagnetic material which displays a large magneto-optical Kerr effect, despite lacking a ferromagnetic moment. Here, the authors show that likewise, Mn3Sn, also presents a particularly large magneto-optical Voigt signal, with a negligible change in the quench time over a wide temperature range.
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Affiliation(s)
- H C Zhao
- Key Laboratory of Micro and Nano Photonic Structures (Ministry of Education), and Shanghai Ultra-precision Optical Manufacturing Engineering Research Center, Department of Optical Science and Engineering, Fudan University, Shanghai, China
| | - H Xia
- Key Laboratory of Micro and Nano Photonic Structures (Ministry of Education), and Shanghai Ultra-precision Optical Manufacturing Engineering Research Center, Department of Optical Science and Engineering, Fudan University, Shanghai, China.,Department of Physics, Fudan University, Shanghai, China
| | - S Hu
- Shanghai Key Laboratory of Special Artificial Microstructure Materials and Technology and Pohl Institute of Solid State Physics and School of Physics Science and Engineering, Tongji University, Shanghai, China
| | - Y Y Lv
- Shanghai Key Laboratory of Special Artificial Microstructure Materials and Technology and Pohl Institute of Solid State Physics and School of Physics Science and Engineering, Tongji University, Shanghai, China
| | - Z R Zhao
- Key Laboratory of Micro and Nano Photonic Structures (Ministry of Education), and Shanghai Ultra-precision Optical Manufacturing Engineering Research Center, Department of Optical Science and Engineering, Fudan University, Shanghai, China
| | - J He
- Key Laboratory of Micro and Nano Photonic Structures (Ministry of Education), and Shanghai Ultra-precision Optical Manufacturing Engineering Research Center, Department of Optical Science and Engineering, Fudan University, Shanghai, China
| | - E Liang
- Key Laboratory of Micro and Nano Photonic Structures (Ministry of Education), and Shanghai Ultra-precision Optical Manufacturing Engineering Research Center, Department of Optical Science and Engineering, Fudan University, Shanghai, China
| | - G Ni
- Key Laboratory of Micro and Nano Photonic Structures (Ministry of Education), and Shanghai Ultra-precision Optical Manufacturing Engineering Research Center, Department of Optical Science and Engineering, Fudan University, Shanghai, China.
| | - L Y Chen
- Key Laboratory of Micro and Nano Photonic Structures (Ministry of Education), and Shanghai Ultra-precision Optical Manufacturing Engineering Research Center, Department of Optical Science and Engineering, Fudan University, Shanghai, China
| | - X P Qiu
- Shanghai Key Laboratory of Special Artificial Microstructure Materials and Technology and Pohl Institute of Solid State Physics and School of Physics Science and Engineering, Tongji University, Shanghai, China.
| | - S M Zhou
- Shanghai Key Laboratory of Special Artificial Microstructure Materials and Technology and Pohl Institute of Solid State Physics and School of Physics Science and Engineering, Tongji University, Shanghai, China.
| | - H B Zhao
- Key Laboratory of Micro and Nano Photonic Structures (Ministry of Education), and Shanghai Ultra-precision Optical Manufacturing Engineering Research Center, Department of Optical Science and Engineering, Fudan University, Shanghai, China. .,Shanghai Frontier Base of Intelligent Optoelectronics and Perception, Institute of Optoelectronics, Fudan University, Shanghai, China.
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14
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Xia H, Sun H, He S, Zhao M, Huang W, Zhang Z, Xue Y, Fu P, Chen W. Absent Cortical Venous Filling Is Associated with Aggravated Brain Edema in Acute Ischemic Stroke. AJNR Am J Neuroradiol 2021; 42:1023-1029. [PMID: 33737267 DOI: 10.3174/ajnr.a7039] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2020] [Accepted: 12/01/2020] [Indexed: 12/11/2022]
Abstract
BACKGROUND AND PURPOSE Predicting malignant cerebral edema can help identify patients who may benefit from appropriate evidence-based interventions. We investigated whether absent cortical venous filling is associated with more pronounced early brain edema, which leads to malignant cerebral edema. MATERIALS AND METHODS Patients with acute ischemic stroke caused by large-vessel occlusion in the MCA territory who presented between July 2017 and September 2019 to our hospital were included. Collateral filling was rated using the modified Tan scale on CTA, and good collaterals were defined as a score of 2-3. The Cortical Vein Opacification Score (COVES) was calculated, and absent cortical venous filling was defined as a score of 0. Early brain edema was determined using net water uptake on baseline CT images. Malignant cerebral edema was defined as a midline shift of ≥5 mm on follow-up imaging or a massive cerebral swelling leading to decompressive hemicraniectomy or death. Multivariate linear and logistic regression models were performed to analyze data. RESULTS A total of 163 patients were included. Net water uptake was significantly higher in patients with absent than in those with favorable cortical venous filling (8.1% versus 4.2%; P < .001). In the multivariable regression analysis, absent cortical venous filling (β = 2.04; 95% CI, 0.75-3.32; P = .002) was significantly and independently associated with higher net water uptake. Absent cortical venous filling (OR, 14.68; 95% CI, 4.03-53.45; P < .001) and higher net water uptake (OR, 1.29; 95% CI, 1.05-1.58; P = .016) were significantly associated with increased likelihood of malignant cerebral edema. CONCLUSIONS Patients with absent cortical venous filling were associated with an increased early brain edema and a higher risk of malignant cerebral edema. These patients may be targeted for optimized adjuvant antiedematous treatment.
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Affiliation(s)
- H Xia
- From the Department of Radiology (H.X.), Shaoxing People's Hospital (Shaoxing Hospital, Zhejiang University School of Medicine), Shaoxing, Zhejiang, China
| | - H Sun
- Department of Radiology (H.S., S.H., M.Z., W.H., Z.Z., Y.X., P.F., W.C.), The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - S He
- Department of Radiology (H.S., S.H., M.Z., W.H., Z.Z., Y.X., P.F., W.C.), The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - M Zhao
- Department of Radiology (H.S., S.H., M.Z., W.H., Z.Z., Y.X., P.F., W.C.), The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - W Huang
- Department of Radiology (H.S., S.H., M.Z., W.H., Z.Z., Y.X., P.F., W.C.), The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Z Zhang
- Department of Radiology (H.S., S.H., M.Z., W.H., Z.Z., Y.X., P.F., W.C.), The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Y Xue
- Department of Radiology (H.S., S.H., M.Z., W.H., Z.Z., Y.X., P.F., W.C.), The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - P Fu
- Department of Radiology (H.S., S.H., M.Z., W.H., Z.Z., Y.X., P.F., W.C.), The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - W Chen
- Department of Radiology (H.S., S.H., M.Z., W.H., Z.Z., Y.X., P.F., W.C.), The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China
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15
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Han S, Xia H, Lu YM, Liu WJ, Xu WY, Fang M, Cao PJ, Zhu DL. UV response characteristics of mixed-phase MgZnO thin films with different structure distributions, high I uv/I dark ratios, and fast speed MgZnO UV detectors with tunneling breakdown mechanisms. Nanotechnology 2021; 32:235202. [PMID: 33724929 DOI: 10.1088/1361-6528/abe824] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
High-performance ultraviolet (UV) detectors with both high responses and fast speeds are hard to make on homogeneous crystal semiconductor materials. Here, the UV response characteristics of mixed-phase MgZnO thin films with different internal structure distributions are studied. The mixed-phase MgZnO-based detector with the given crystal composition has a high response at both deep UV light (96 A W-1 at 240 nm) and near UV light (80 A W-1 at 335 nm). Meanwhile, because of the quasi-tunneling breakdown mechanism within the device, the high-response UV detector also shows a fast response speed (tr = 0.11 μs) and recovery speed (td1 = 26 μs) at deep UV light, which is much faster than both low-response mixed-phase MgZnO-based UV detectors with other structure constitutions and reported high-response UV devices on homogenous crystal materials. The Idark of the device is just 4.27 pA under a 5 V bias voltage, so the signal-to-noise ratio of the device reached 23852 at 5.5 uW cm-2 235 nm UV light. The new quasi-tunneling breakdown mechanism is observed in some mixed-phase MgZnO thin films that contain both c-MgZnO and h-MgZnO parts, which introduce a high response, signal-to-noise ratio, and fast speed into mixed-phase MgZnO-based UV detectors at weak deep UV light.
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Affiliation(s)
- Shun Han
- College of Materials Science and Engineering, Shenzhen University, Guangdong Research Center for Interfacial Engineering of Functional Materials, Shenzhen Key Laboratory of Special Functional Materials, Shenzhen 518060, People's Republic of China
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16
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Xia H, Yan JC. [Research progress on the association between neutrophil extracellular traps and myocardial ischemia reperfusion]. Zhonghua Xin Xue Guan Bing Za Zhi 2021; 49:188-192. [PMID: 33611909 DOI: 10.3760/cma.j.cn112148-20200422-00332] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- H Xia
- Department of Cardiology, Affiliated Hospital of Jiangsu University, Zhenjiang 212001, China
| | - J C Yan
- Department of Cardiology, Affiliated Hospital of Jiangsu University, Zhenjiang 212001, China
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17
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Tao ZY, Liu WP, Dong J, Feng XX, Yao DW, Lv QL, Ibrahim U, Dong JJ, Culleton R, Gu W, Su PP, Tao L, Li JY, Fang Q, Xia H. Purification of Plasmodium and Babesia- infected erythrocytes using a non-woven fabric filter. Trop Biomed 2020; 37:911-918. [PMID: 33612745 DOI: 10.47665/tb.37.4.911] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The purification of parasite-infected erythrocytes from whole blood containing leucocytes is crucial for many downstream genetic and molecular assays in parasitology. Current methodologies to achieve this are often costly and time consuming. Here, we demonstrate the successful application of a cheap and simple Non-Woven Fabric (NWF) filter for the purification of parasitized red blood cells from whole blood. NWF filtration was applied to the malaria-parasitized blood of three strains of mice, and one strain of rat, and to Babesia gibsoni parasitized dog blood. Before and after filtration, the white blood cell (WBC) removal rates and red blood cell (RBC) recovery rates were measured. After NWF filter treatment of rodent malaria-infected blood, the WBC removal rates and RBC recovery rates were, for Kunming mice: 99.51%±0.30% and 86.12%±8.37%; for BALB/C mice: 99.61%±0.15% and 80.74%±7.11%; for C57 mice: 99.71%±0.12% and 84.87%±3.83%; for Sprague-Dawley rats: 99.93%±0.03% and 83.30%±2.96%. Microscopy showed WBCs were efficiently removed from infected dog blood samples, and there was no obvious morphological change of B. gibsoni parasites. NWF filters efficiently remove leukocytes from malaria parasite-infected mouse and rat blood, and are also suitable for filtration of B. gibsoni-infected dog blood.
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Affiliation(s)
- Z Y Tao
- Department of Microbiology and Parasitology, Bengbu Medical College, 2600# Donghai Avenue, Bengbu 233030, China.,Anhui Provincial Key Laboratory of Infection and Immunology, Bengbu Medical College, 2600# Donghai Avenue, Bengbu 233030, China
| | - W P Liu
- Department of Microbiology and Parasitology, Bengbu Medical College, 2600# Donghai Avenue, Bengbu 233030, China.,Anhui Provincial Key Laboratory of Infection and Immunology, Bengbu Medical College, 2600# Donghai Avenue, Bengbu 233030, China
| | - J Dong
- Department of Microbiology, Bengbu Center for Disease Control and Prevention, 700# Huayuan Road, Bengbu 233000, China
| | - X X Feng
- College of Veterinary Medicine, Nanjing Agricultural University, No.1 Weigang Road, Nanjing 210095, China
| | - D W Yao
- College of Veterinary Medicine, Nanjing Agricultural University, No.1 Weigang Road, Nanjing 210095, China
| | - Q L Lv
- Department of Microbiology and Parasitology, Bengbu Medical College, 2600# Donghai Avenue, Bengbu 233030, China
| | - U Ibrahim
- Department of Microbiology and Parasitology, Bengbu Medical College, 2600# Donghai Avenue, Bengbu 233030, China.,Anhui Provincial Key Laboratory of Infection and Immunology, Bengbu Medical College, 2600# Donghai Avenue, Bengbu 233030, China
| | - J J Dong
- Department of Microbiology and Parasitology, Bengbu Medical College, 2600# Donghai Avenue, Bengbu 233030, China
| | - R Culleton
- Department of Molecular Parasitology, Proteo-Science Center, Ehime University, Shitsukawa, Toon, Ehime 791-0295, Japan
| | - W Gu
- Department of Microbiology and Parasitology, Bengbu Medical College, 2600# Donghai Avenue, Bengbu 233030, China
| | - P P Su
- Department of Microbiology and Parasitology, Bengbu Medical College, 2600# Donghai Avenue, Bengbu 233030, China
| | - L Tao
- Department of Microbiology and Parasitology, Bengbu Medical College, 2600# Donghai Avenue, Bengbu 233030, China
| | - J Y Li
- Department of Microbiology and Parasitology, Bengbu Medical College, 2600# Donghai Avenue, Bengbu 233030, China
| | - Q Fang
- Department of Microbiology and Parasitology, Bengbu Medical College, 2600# Donghai Avenue, Bengbu 233030, China.,Anhui Provincial Key Laboratory of Infection and Immunology, Bengbu Medical College, 2600# Donghai Avenue, Bengbu 233030, China
| | - H Xia
- Department of Microbiology and Parasitology, Bengbu Medical College, 2600# Donghai Avenue, Bengbu 233030, China.,Anhui Provincial Key Laboratory of Infection and Immunology, Bengbu Medical College, 2600# Donghai Avenue, Bengbu 233030, China
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18
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Zhou B, Xia H, Sun G. A systematic review of bibliometric and meta-analysis on Goji Berry and its bioactive function. Clin Nutr ESPEN 2020. [DOI: 10.1016/j.clnesp.2020.09.714] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Wang Y, Yao X, Tang MY, Liu L, Song SH, Tao ZY, Xia H, Chang XL, Fang Q. [Immune characteristics of Plasmodium reinfections in mice following chloroquine cure of primary Plasmodium infections]. Zhongguo Xue Xi Chong Bing Fang Zhi Za Zhi 2020; 32:569-576. [PMID: 33325190 DOI: 10.16250/j.32.1374.2020164] [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: 11/27/2022]
Abstract
OBJECTIVE To investigate the disease progression and immunoprotective characteristics in mice re-infected with homogeneous/heterogeneous Plasmodium strains following cure of Plasmodium infections with chloroquine at the peak of parasitemia. METHODS C57BL/6 mice were infected with the non-lethal P. yoelii 17XNL strain, and half of mice were given treatment with chloroquine at the peak of parasitemia (9 days post-infection), while the other mice were self-cured naturally. Then, all cured mice were re-infected with the equivalent lethal P. yoelii 17XL or P. berghei ANKA strain 90 days following primary Plasmodium infections. The parasitemia levels during primary infections and reinfections were measured by microscopic examinations of Giemsa-stained thin blood films, and the levels of the IgG antibody in sera and the percentages of memory T cell subsets in spleen cells were detected in mice using ELISA and flow cytometry before and after parasite reinfections, respectively. RESULTS Following primary infections with the P. yoelii 17XNL strain, the serum IgG antibody levels were (5.047 ± 0.924) pg/mL in the selfcured mice and (4.429 ± 0.624) pg/mL in the chloroquine-treated mice, respectively (t = 0.437, P > 0.05), which were both significantly higher than that in the uninfected mice (1.624 pg/mL ± 0.280 pg/mL) (F = 22.522, P < 0.01). There was no significant difference in the serum IgG antibody level among self-cured and chloroquine-treated mice re-infected with the P. yoelii 17XL strain or the P. berghei ANKA strain (F = 0.542, P > 0.05); however, the serum IgG antibody levels were all significantly higher in selfcured and chloroquine-treated mice re-infected with the P. yoelii 17XLstrain[(15.487±1.173)pg/mLand(15.965±1.150)pg/mL] or the P. berghei ANKA strain [(14.644 ± 1.523) pg/mL and (15.185 ± 1.333) pg/mL] relative to primary infections (F = 67.383, P < 0.01). There was no significant difference in the proportion of CD4+ [(34.208 ± 2.106), (32.820 ± 1.930), (34.023 ± 2.289), (35.608 ± 1.779) pg/mL] or CD8+ T memory cells [(17.935 ± 2.092), (18.918 ± 2.823), (17.103 ± 1.627), (17.873 ± 1.425) pg/mL] in self-cured and chloroquine-treated mice with primary infections with the P. yoelii 17XNL strain followed by re-infections with the P. yoelii 17XL strain or the P. berghei ANKA strain (F = 0.944 and 0.390, both P > 0.05); however, the proportions of the CD4+ or CD8+ T memory cells were significantly greater in self-cured and chloroquine-treated mice with primary infections with the P. yoelii 17XNL strain followed by re-infections with the P. yoelii 17XL strain or the P. berghei ANKA strain than in mice with primary infections (F = 50.532 and 21.751, both P < 0.01). CONCLUSIONS The cure of murine Plasmodium infections with chloroquine does not affect the production of effective immune protections in mice during parasite re-infections. Following a primary infection, mice show a protection against re-infections with either homogeneous or heterogeneous Plasmodium strains, and a higher-level resistance to re-infections with homogeneous parasite strains is found than with heterogeneous strains.
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Affiliation(s)
- Y Wang
- Department of Microbiology and Parasitology, Bengbu Medical College, Anhui Key Laboratory of Infection and Immunity, Bengbu 233030, China
| | - X Yao
- ▵Co-first author.,Department of Microbiology and Parasitology, Bengbu Medical College, Anhui Key Laboratory of Infection and Immunity, Bengbu 233030, China
| | - M Y Tang
- Grade 2016, School of Clinical Medical Sciences, Bengbu Medical College, China
| | - L Liu
- Grade 2018, The Second School of Clinical Medical Sciences, Bengbu Medical College, China
| | - S H Song
- Grade 2018, School of Psychiatry, Bengbu Medical College, China
| | - Z Y Tao
- Department of Microbiology and Parasitology, Bengbu Medical College, Anhui Key Laboratory of Infection and Immunity, Bengbu 233030, China
| | - H Xia
- Department of Microbiology and Parasitology, Bengbu Medical College, Anhui Key Laboratory of Infection and Immunity, Bengbu 233030, China
| | - X L Chang
- Department of Microbiology and Parasitology, Bengbu Medical College, Anhui Key Laboratory of Infection and Immunity, Bengbu 233030, China
| | - Q Fang
- Department of Microbiology and Parasitology, Bengbu Medical College, Anhui Key Laboratory of Infection and Immunity, Bengbu 233030, China
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Roydhouse JK, Menapace LA, Xia H, Song P, Berman T, Agarwal R, Suzman DL, Wright K, Beaver JA, Kluetz PG. Concomitant botanical medicine use among patients participating in commercial prostate cancer trials. Complement Ther Med 2020; 54:102549. [PMID: 33183667 DOI: 10.1016/j.ctim.2020.102549] [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] [Subscribe] [Scholar Register] [Received: 03/11/2020] [Revised: 08/24/2020] [Accepted: 08/25/2020] [Indexed: 11/27/2022] Open
Abstract
OBJECTIVES Patients with cancer frequently use botanical medications. The concomitant use of such medications by patients on commercial trials has not been well-described, despite the importance of these trials for evaluating the safety and efficacy of new agents. We sought to describe the use of botanical medications taken by patients with prostate cancer enrolled on global commercial trials. DESIGN Retrospective study. SETTING Regulatory repository of commercial clinical trial data. INTERVENTIONS Anti-cancer therapy. MAIN OUTCOME MEASURES Botanical and medication use data were pooled across six international commercial randomized trials for metastatic prostate cancer with detailed information on medication and indications. Botanical products were considered to have potential for drug interaction if they led to a change in drug exposure in human trials. Potential for interaction was ascertained by PubMed review. Descriptive statistics were used for analysis. RESULTS Of 7318 enrolled patients, 700 (10 %) reported botanical use at any time and 653 (9%) reported use of botanical products while on trial. Nearly half of botanical product types were not classified by plant (43 %). The highest proportion of botanical use was among patients in Asian countries (32 %), followed by patients in North America (13 %). Eighty-six different types of botanical products were used; of these, nineteen had a patient-reported anti-cancer indication. CONCLUSIONS Botanical medicine use among patients with prostate cancer in commercial trials is moderate, although it varies by region. Practitioners should be aware of the use of botanical interventions in a clinical trial context.
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Affiliation(s)
- J K Roydhouse
- ORISE Fellow, Office of Hematology and Oncology Products, Center for Drug Evaluation and Research, Food and Drug Administration (US FDA), Silver Spring, MD, USA; Menzies Institute for Medical Research, University of Tasmania, Hobart TAS, Australia.
| | - L A Menapace
- Office of Hematology and Oncology Products, Center for Drug Evaluation and Research, US FDA, Silver Spring, MD, USA; National Heart, Lung and Blood Institute (NHLBI), National Institutes of Health (NIH), Bethesda, MD, USA
| | - H Xia
- Division of Clinical Pharmacology, Center for Drug Evaluation and Research, US FDA, Silver Spring, MD, USA
| | - P Song
- Division of Clinical Pharmacology, Center for Drug Evaluation and Research, US FDA, Silver Spring, MD, USA
| | - T Berman
- Office of Oncologic Diseases, Center for Drug Evaluation and Research, US FDA, Silver Spring, MD, USA
| | - R Agarwal
- New Drug Products Branch II, Center for Drug Evaluation and Research, US FDA, Silver Spring, MD, USA
| | - D L Suzman
- Office of Oncologic Diseases, Center for Drug Evaluation and Research, US FDA, Silver Spring, MD, USA
| | - K Wright
- Office of Prescription Drug Promotion, Center for Drug Evaluation and Research, US FDA, Silver Spring, MD, USA
| | - J A Beaver
- Office of Oncologic Diseases, Center for Drug Evaluation and Research, US FDA, Silver Spring, MD, USA
| | - P G Kluetz
- Oncology Center of Excellence, US FDA, Silver Spring, MD, USA
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Zhang ZH, Chen GX, Xia H, Yang B, Jiang H, Hu D. [Principle of management among patients with inherited and acquired arrhythmic syndrome complicating with COVID-19 infection]. Zhonghua Xin Xue Guan Bing Za Zhi 2020; 48:799-804. [PMID: 32957768 DOI: 10.3760/cma.j.cn112148-20200503-00366] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Affiliation(s)
- Z H Zhang
- Department of Cardiology, Hubei Key Laboratory of Cardiovascular Diseases, Institute of Cardiovascular Diseases, Renmin Hospital of Wuhan University, Wuhan 430060, China
| | - G X Chen
- Department of Cardiology, Hubei Key Laboratory of Cardiovascular Diseases, Institute of Cardiovascular Diseases, Renmin Hospital of Wuhan University, Wuhan 430060, China
| | - H Xia
- Department of Cardiology, Hubei Key Laboratory of Cardiovascular Diseases, Institute of Cardiovascular Diseases, Renmin Hospital of Wuhan University, Wuhan 430060, China
| | - B Yang
- Department of Cardiology, Hubei Key Laboratory of Cardiovascular Diseases, Institute of Cardiovascular Diseases, Renmin Hospital of Wuhan University, Wuhan 430060, China
| | - H Jiang
- Department of Cardiology, Hubei Key Laboratory of Cardiovascular Diseases, Institute of Cardiovascular Diseases, Renmin Hospital of Wuhan University, Wuhan 430060, China
| | - D Hu
- Department of Cardiology, Hubei Key Laboratory of Cardiovascular Diseases, Institute of Cardiovascular Diseases, Renmin Hospital of Wuhan University, Wuhan 430060, China
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Zhu J, Zhang J, Xia H, Ge J, Ye X, Guo B, Liu M, Dai L, Zhang L, Chen L, Wang Y, Wang X, Liu H, Chen C, Wang Y, Wang G, Cai M, Yang X, Li F, Fan C, Ruan Y, Yu L, Zhang R, Xu H, Zhang J, Ma X, Yuan D, Zhu Y, Wang D, Betran AP, Qi H, Duan T, Zhang J. Stillbirths in China: a nationwide survey. BJOG 2020; 128:67-76. [PMID: 32770714 PMCID: PMC7754392 DOI: 10.1111/1471-0528.16458] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/28/2020] [Indexed: 11/30/2022]
Abstract
Objective To estimate a stillbirth rate at 24 or more gestational weeks in 2015–2016 and to explore potentially preventable causes in China. Design A multi‐centre cross‐sectional study. Setting Ninety‐six hospitals distributed in 24 (of 34) provinces in China. Population A total of 75 132 births at 24 completed weeks of gestation or more. Methods COX Proportional Hazard Models were performed to examine risk factors for antepartum and intrapartum stillbirths. Population attributable risk percentage was calculated for major risk factors. Correspondence analysis was used to explore region‐specific risk factors for stillbirths. Main outcome measures Stillbirth rate and risk factors for stillbirth. Results A total of 75 132 births including 949 stillbirths were used for the final analysis, giving a weighted stillbirth rate of 13.2 per 1000 births (95% CI 7.9–18.5). Small for gestational age (SGA) and pre‐eclampsia/eclampsia increased antepartum stillbirths by 26.2% and 11.7%, respectively. Fetal anomalies increased antepartum and intrapartum stillbirths by 17.9% and 7.4%, respectively. Overall, 31.4% of all stillbirths were potentially preventable. Advanced maternal age, pre‐pregnant obesity, chronic hypertension and diabetes mellitus were important risk factors in East China; low education and SGA were major risk factors in Northwest, Southwest, Northeast and South China; and pre‐eclampsia/eclampsia and intrapartum complications were significant risk factors in Central China. Conclusions The prevalence of stillbirth was 13.2 per 1000 births in China in 2015–2016. Nearly one‐third of all stillbirths may be preventable. Strategies based on regional characteristics should be considered to reduce further the burden of stillbirths in China. Tweetable abstract The stillbirth rate was 13.2 per 1000 births in China in 2015–2016 and nearly one‐third of all stillbirths may be preventable. The stillbirth rate was 13.2 per 1000 births in China in 2015–2016 and nearly one‐third of all stillbirths may be preventable.
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Affiliation(s)
- J Zhu
- MOE-Shanghai Key Laboratory of Children's Environmental Health, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.,Department of Obstetrics and Gynecology, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - J Zhang
- MOE-Shanghai Key Laboratory of Children's Environmental Health, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - H Xia
- Department of Obstetrics, The Maternal and Child Health Hospital of Guangxi Zhuang Autonomous Region, Nanning, China
| | - J Ge
- Department of Obstetrics, Shijiazhuang Obstetrics and Gynecology Hospital, Hebei, China
| | - X Ye
- Department of Obstetrics and Gynecology, Nanjing Drum Tower Hospital, Nanjing University Medical School, Jiangsu, China
| | - B Guo
- Department of Obstetrics, The Maternal and Child Health Hospital of Dongchangfu District, Shangdong, China
| | - M Liu
- Department of Obstetrics, Shanghai First Maternity and Infant Hospital, Tongji University School of Medicine, Shanghai, China
| | - L Dai
- Department of Obstetrics, The Maternal and Child Healthcare Hospital of Xiangtan, Hunan, China
| | - L Zhang
- Department of Obstetrics, Qihetai Maternal and Child Health Hospital, Heilongjiang, China
| | - L Chen
- Department of Obstetrics, Fujian Provincial Maternity and Children's Hospital, Fujian, China
| | - Y Wang
- Department of Obstetrics and Gynecology, Suzhou Municipal Hospital, Nanjing University Medical School, Jiangsu, China
| | - X Wang
- Department of Obstetrics and Gynecology, Traditional Chinese Medicine Integrated Hospital of Tongzhou District, Beijing, China
| | - H Liu
- Department of Obstetrics, Northwest Women's and Children's Hospital, Xi'an Jiao Tong University, Shaanxi, China
| | - C Chen
- Department of Obstetrics, Maternity and Child Care Center of Xingyang, Henan, China
| | - Y Wang
- Department of Obstetrics and Gynecology, Wenzhou People's Hospital, Wenzhou Maternal and Child Health Care Hospital, The Third Clinical Institute Affiliated to Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - G Wang
- Department of Obstetrics, Inner Mongolia Maternity and Child Health Care Hospital, Hohhot, Inner Mongolia Autonomous Region, China
| | - M Cai
- Department of Obstetrics, Changsha Hospital for Maternal and Child Health Care, Hunan, China
| | - X Yang
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - F Li
- Department of Obstetrics, Haidian Maternal and Child Health Hospital, Beijing, China
| | - C Fan
- Department of Obstetrics and Gynecology, Renmin Hospital of Wuhan University, Hubei, China
| | - Y Ruan
- Department of Obstetrics, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Beijing, China
| | - L Yu
- Department of Obstetrics and Gynecology, Jinhua People's Hospital, Zhejiang, China
| | - R Zhang
- Department of Obstetrics and Gynecology, Wenling Maternal and Child Health Hospital, Zhejiang, China
| | - H Xu
- Department of Obstetrics, Shaoxing Maternal and Child Health Hospital, Zhejiang, China
| | - J Zhang
- Department of Obstetrics and Gynecology, The Fifth Hospital of Xiamen, Fujian, China
| | - X Ma
- Department of Obstetrics, Gansu Provincial Maternity and Child-care Hospital, Lanzhou, Gansu, China
| | - D Yuan
- Department of Obstetrics, Gaizhou Maternal and Child Health Hospital, Liaoning, China
| | - Y Zhu
- Department of Obstetrics and Gynecology, Jiangyin People's Hospital, Southeast University School of Medicine, Jiangsu, China
| | - D Wang
- Department of Obstetrics and Gynecology, The First Hospital Affiliated to Army Medical University, Chongqing, China
| | - A P Betran
- UNDP/UNFPA/UNICEF/WHO/World Bank Special Programme of Research, Development and Research Training in Human Reproduction, Department of Reproductive Health and Research, World Health Organization (WHO), Geneva, Switzerland
| | - H Qi
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - T Duan
- Department of Obstetrics, Shanghai First Maternity and Infant Hospital, Tongji University School of Medicine, Shanghai, China
| | - J Zhang
- MOE-Shanghai Key Laboratory of Children's Environmental Health, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
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Shen L, Li J, Miao Z, Xu N, Liu B, Li X, Zhang Q, Gao Q, Zhao Y, Pan H, Pei Z, Li W, Xia H, Wang J, Dai H, Shi Q, Yang J. 1445P CS1001, an anti-PD-L1 antibody, combined with standard of care (SOC) chemotherapy for first line (1L) advanced GC/GEJ and ESCC: Preliminary results from 2 phase Ib cohorts of CS1001-101 study. Ann Oncol 2020. [DOI: 10.1016/j.annonc.2020.08.1951] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
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Francois N, Xia H, Punzmann H, Shats M. Nonequilibrium Thermodynamics of Turbulence-Driven Rotors. Phys Rev Lett 2020; 124:254501. [PMID: 32639782 DOI: 10.1103/physrevlett.124.254501] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/26/2019] [Revised: 03/16/2020] [Accepted: 05/21/2020] [Indexed: 06/11/2023]
Abstract
We characterize a process of energy extraction via rectification of strongly turbulent flow by using tools of stochastic thermodynamics. We study the dynamics of an asymmetric autonomous rotor that shows biased direction of rotation when placed in a stream. We give experimental evidence that a fluctuation theorem can be used to describe the work injected in the rotor via its coupling with the turbulent flow structure. This approach allows to measure the mean power extracted from the chaotic fluid motion over a broad range of turbulent kinetic energy. A nontrivial dependence of the rotor power on flow kinetic energy is identified. This observation is described by a model taking into account the dissipation of the rotor energy and the temporal memory of coherent structures present in the turbulent flow.
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Affiliation(s)
- N Francois
- Research School of Physics, The Australian National University, Canberra ACT 2601, Australia
| | - H Xia
- Research School of Physics, The Australian National University, Canberra ACT 2601, Australia
| | - H Punzmann
- Research School of Physics, The Australian National University, Canberra ACT 2601, Australia
| | - M Shats
- Research School of Physics, The Australian National University, Canberra ACT 2601, Australia
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Sun Y, Gao L, Xia H, Yang Z, Deng S, Yang J, Zhao Y, Wang L, Feng J, Huang F, Huan S, Zhan S. Accuracy of molecular diagnostic tests for drug-resistant tuberculosis detection in China: a systematic review. Int J Tuberc Lung Dis 2020; 23:931-942. [PMID: 31533884 DOI: 10.5588/ijtld.18.0550] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
OBJECTIVE: To evaluate the accuracy of molecular diagnostics for the detection of drug-resistant tuberculosis (TB) in Chinese patients.METHOD: Seven databases were searched for eligible studies that evaluated the accuracy of molecular diagnostics against drug susceptibility testing (DST) for detecting drug resistance. A bivariate random-effects meta-analysis was conducted to pool sensitivity and specificity by the index test and drug resistance type.RESULTS: A total of 159 studies were included. Compared with DST (reference standard), Xpert® could diagnose rifampicin (RMP) resistant TB accurately, with a pooled sensitivity and pooled specificity of 92% (95%CI 90-94) and 98% (95%CI 97-98), respectively. Line-probe assays (LPAs) also performed well for RMP resistance, with a pooled sensitivity of 91% (95%CI 88-93) and pooled specificity of 98% (95%CI 96-99), but not for isoniazid (INH) or second-line drugs due to lower sensitivity (<80%). The pooled sensitivity of GeneChip® microarrays for RMP, INH and multidrug resistance was 89% (95%CI 86-91), 79% (95%CI 75-82) and 79% (95%CI 73-84), respectively, and the specificities were all >97%. Similarly, the MeltPro® TB/STR assay had better sensitivity and specificity for first-line drugs, varying from 87% to 89% and 97% to 98%, respectively, than for second-line drugs.CONCLUSION: The Xpert assay, LPA, GeneChip assay, and MeltPro assay are credible methods with high accuracy for RMP resistance detection, but they may not be appropriate for other anti-tuberculosis drugs due to low sensitivity.
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Affiliation(s)
- Y Sun
- Department of Epidemiology and Biostatistics, Peking University School of Public Health, Beijing
| | - L Gao
- Department of Epidemiology and Biostatistics, Peking University School of Public Health, Beijing
| | - H Xia
- National Center for Tuberculosis Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Z Yang
- Primary Care Unit, University of Cambridge, Cambridge, UK
| | - S Deng
- Department of Epidemiology and Biostatistics, Peking University School of Public Health, Beijing
| | - J Yang
- Department of Epidemiology and Biostatistics, Peking University School of Public Health, Beijing
| | - Y Zhao
- National Center for Tuberculosis Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China
| | - L Wang
- National Center for Tuberculosis Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China
| | - J Feng
- Department of Epidemiology and Biostatistics, Peking University School of Public Health, Beijing
| | - F Huang
- National Center for Tuberculosis Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China
| | - S Huan
- Bill and Melinda Gates Foundation, Beijing Office, Beijing, China
| | - S Zhan
- Department of Epidemiology and Biostatistics, Peking University School of Public Health, Beijing
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Lu M, Hravnak M, Ma J, Lin Y, Zhang X, Shen Y, Xia H. Prediction of Changes in Adherence to Secondary Prevention Among Patients With Coronary Artery Disease. Nurs Res 2020; 69:E199-E207. [DOI: 10.1097/nnr.0000000000000433] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Liu XB, Xia H, Wang G, Zhang W, Hu Y, Zhang J. Propofol relieves oxidative stress response of cerebral ischemiareperfusion injury through SIRT1 signaling pathway. J BIOL REG HOMEOS AG 2020; 34:435-443. [PMID: 32529818 DOI: 10.23812/20-65-a-36] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
This study explored the effects of propofol on the cognitive function and expressions of superoxide dismutase (SOD) and malondialdehyde (MDA) through the silent information regulator 1 (SIRT1) signaling pathway during cerebral ischemia-reperfusion (I/R) injury. C57BL/6J mice were used and divided into Sham group, I/R group (I/R model established via ligation of artery) and Treated group (peritoneal injection of propofol) according to different treatments. The memory ability of mice was evaluated using Morris water maze test, and the motor coordination was assessed using Rota rod test and oblique beam walking test. The brain tissues were prepared into embedded sections, and then the pathological changes in brain neurons were detected via hematoxylin-eosin (HE) staining, and the changes in apoptosis of brain tissues were detected via flow cytometry. Moreover, after the mice were anesthetized and sacrificed, the brain tissues were isolated and whole blood was collected. Then the changes in SIRT1 protein were determined using Western blotting, and the changes in MDA and SOD activity were determined through biochemical assays. The results of Morris water maze test and elevated plus-maze test revealed that transfer latency time (TLT) was significantly prolonged, and escape latency time (ELT) was significantly shortened in the I/R group compared with those in Sham group (*P<0.05), indicating memory impairment after cerebral I/R injury. TLT was shortened, and ELT was significantly prolonged in the Treated group compared with those in I/R group (#P<0.05). In Rota rod test, the falling down time was obviously shorter in the I/R group than in the Sham group (*P<0.05), while it was obviously longer in the Treated group than that in the I/R group (#P<0.05). Compared with the Sham group, the I/R group had neurological impairment, manifested as the evident increase in motor performance score (*P<0.05), and the motor performance score in the Treated group was evidently lower than that in the I/R group (#P<0.05). The apoptosis was markedly enhanced in the I/R group (*P<0.05), while it was markedly weakened in the Treated group (#P<0.05) compared with that in the Sham group. In addition, the results of Western blotting showed that the expression of SIRT1 was evidently higher in I the /R group than that in the Sham group, while it evidently declined after treatment with propofol (#P<0.05).
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Affiliation(s)
- X B Liu
- Department of Anesthesiology, Beijing Jishuitan Hospital, Beijing, China
| | - H Xia
- Department of Anesthesiology, Dongfang Hospital Beijing University of Chinese Medicine, Beijing, China
| | - G Wang
- Department of Anesthesiology, Beijing Jishuitan Hospital, Beijing, China
| | - W Zhang
- Department of Anesthesiology, Beijing Jishuitan Hospital, Beijing, China
| | - Y Hu
- Department of Anesthesiology, Beijing Jishuitan Hospital, Beijing, China
| | - J Zhang
- Department of Anesthesiology, Dongzhimen Hospital Beijing University of Chinese Medicine, Beijing, China
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Chi L, Xiao Y, Zhu L, Zhang M, Xu B, Xia H, Jiang Z, Wu W. microRNA-155 attenuates profibrotic effects of transforming growth factor-beta on human lung fibroblasts. J BIOL REG HOMEOS AG 2019; 33:1415-1424. [PMID: 31556264 DOI: 10.23812/19-41a] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Transforming growth factor-beta (TGF-β) functions in fibrogenesis as a profibrotic mediator, regulating cell proliferation, migration, apoptosis and collagen production of fibroblasts. microRNA-155 (miR-155), the expression of which has been related to bleomycin-induced idiopathic pulmonary fibrosis, has been involved in TGF-β induced epithelial-mesenchymal transition. Here, we found that miR-155 expression was decreased in human pulmonary fibroblasts by TGF-β treatment. We overexpressed miR-155 in fibroblasts to investigate the functional impact of miR-155 on TGF-β-induced fibrotic phenotype of fibroblasts. It is suggested that miR-155 overexpression attenuated the stimulatory effect of TGF-β on fibroblast proliferation, migration and collagen synthesis, by evidence from assessment of cell cycle, viability, apoptosis, migration and collagen content. Furthermore, quantitative measurement showed that SMAD1 gene expression was decreased following miR-155 inhibition, thereby demonstrating an indirect miRNA-SMAD interaction that links miR-155 to TGF-β signaling. Our work helped uncover an miRNA-mediated mechanism of fibroblast response to TGF-β. Moreover, it will help to achieve a better understanding of the regulatory roles of miR-155 in fibrogenesis.
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Affiliation(s)
- L Chi
- School of Basic Medical Sciences, Zhejiang Chinese Medical University, Hangzhou, Zhejiang, China
| | - Y Xiao
- Institute of Occupational Medicine, Zhejiang Academy of Medical Sciences, Hangzhou, Zhejiang, China
| | - L Zhu
- Institute of Occupational Medicine, Zhejiang Academy of Medical Sciences, Hangzhou, Zhejiang, China
| | - M Zhang
- Institute of Occupational Medicine, Zhejiang Academy of Medical Sciences, Hangzhou, Zhejiang, China
| | - B Xu
- Department of General Surgery, Zhejiang Rehabilitation Medical Center, Hangzhou, Zhejiang, China
| | - H Xia
- Institute of Occupational Medicine, Zhejiang Academy of Medical Sciences, Hangzhou, Zhejiang, China
| | - Z Jiang
- Institute of Occupational Medicine, Zhejiang Academy of Medical Sciences, Hangzhou, Zhejiang, China
| | - W Wu
- School of Basic Medical Sciences, Zhejiang Chinese Medical University, Hangzhou, Zhejiang, China
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Xia H, Qu XL, Liu LY, Qian DH, Jing HY. LncRNA MEG3 promotes the sensitivity of vincristine by inhibiting autophagy in lung cancer chemotherapy. Eur Rev Med Pharmacol Sci 2019; 22:1020-1027. [PMID: 29509250 DOI: 10.26355/eurrev_201802_14384] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
OBJECTIVE Lung cancer is one of the most common malignancies worldwide, the morbidity and mortality of which have been on rising in recent years. Moreover, lncRNAs have been implicated in the development of various cancers, as well as cancer treatment and prognosis. In this study, long non-coding RNA (lncRNA) MEG3, an identified tumor suppressor, was explored for its role in the chemotherapy of lung cancer. MATERIALS AND METHODS All cases were divided into (I+II) group and (III+IV) group according to different stages of tumor node metastasis (TNM), and were divided into sensitive group and insensitive group according to chemotherapy sensitivity. A549 and H292 cells were selected as the resistant cell and non-resistant lung cancer cells. Quantitative reverse transcriptase-polymerase chain reaction (qRT-PCR) was performed to detect the expression of MEG3. After transfection with overexpression plasmid pcDNA-MEG3 or/and different concentrations of vincristine, cell viability and proliferation were measured by cell counting kit-8 (CCK-8) assay and plate cloning assay, respectively. Western blotting was used to analyze the expressions of autophagy-related proteins. RESULTS In vivo, lncRNA MEG3 was significantly lower in III+IV group and insensitive group than that in I+II group and sensitive group. In vitro, MEG3 expression in resistant cells was significantly lower than that in non-resistant cells. Overexpression of MEG3 significant inhibited the viability and proliferation of both resistant and non-resistant lung cancer cells. Western blot results showed that autophagy level was higher in resistant cells than that in non-resistant cells, while overexpression of MEG3 significantly reduced the expression of autophagy-related proteins. CCK-8 results also indicated that the cell viability was negatively correlated with the dose of vincristine, while the viability of drug-resistant cells was higher than that of non-drug resistant cells after the treatment of vincristine. The vitality of both cells decreased in a concentration-dependent manner after combined treatment with vincristine and MEG3. CONCLUSIONS Our data indicated that lncRNA MEG3 showed a low expression in chemotherapy-sensitive lung cancer tissues, and overexpression of lncRNA MEG3 attenuated autophagy level, thus increasing the sensitivity of vincristine in chemotherapy of lung cancer.
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Affiliation(s)
- H Xia
- Department of Respiratory Medicine, First Hospital of Jilin University, Changchun, China.
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Lu M, Xia H, Ma J, Lin Y, Zhang X, Shen Y, Hravnak M. Relationship between adherence to secondary prevention and health literacy, self-efficacy and disease knowledge among patients with coronary artery disease in China. Eur J Cardiovasc Nurs 2019; 19:230-237. [PMID: 31595771 DOI: 10.1177/1474515119880059] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Background: Adherence to secondary prevention is an indispensable part of the management of patients with coronary artery disease. Finding patient factors affecting their adherence behaviours is important for improving the treatment effect and limiting further disease progression. Aims: To examine the association between health literacy, self-efficacy, disease knowledge and adherence to secondary coronary artery disease prevention in patients in China. Methods: In this cross-sectional study, 598 patients with coronary artery disease were enrolled in two tertiary hospitals in China during a hospitalisation for receiving percutaneous coronary intervention. Patient-reported data were collected on demographics, health literacy, self-efficacy, disease knowledge and adherence to secondary coronary artery disease prevention (medication-taking and heart-healthy lifestyle (exercise, reducing/eliminating alcohol intake and smoking, low salt and fat diet, stress reduction)). Chi-squared tests and regression analyses were performed. Results: The proportions of recalled self-report of adherence to medication-taking and a heart-healthy lifestyle immediately prior to the coronary artery disease hospitalisation were 84.7% and 53.2%, respectively. In logistic regression, health literacy, self-efficacy and disease knowledge was significantly associated with non-adherence to secondary coronary artery disease prevention. Limited health literacy demonstrated a 1.61-fold odds for non-adherence to a heart-healthy lifestyle. Each score increase of self-efficacy and disease knowledge had 0.98-fold odds and 1.05-fold odds of non-adherence to a heart-healthy lifestyle. Conclusions: Adherence to medication-taking was relatively good in Chinese patients prior to coronary artery disease hospitalisation, but adherence to heart-healthy lifestyle behaviours should be improved. Health literacy, self-efficacy and disease knowledge should be taken into account when intervening to improve secondary coronary artery disease prevention.
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Affiliation(s)
- Minmin Lu
- School of Nursing, Fudan University, China
| | - Haiou Xia
- School of Nursing, Fudan University, China
| | - Jianying Ma
- Zhongshan Hospital, Affiliated to Fudan University, China
| | - Ying Lin
- Zhongshan Hospital, Affiliated to Fudan University, China
| | - Xian Zhang
- Zhongshan Hospital, Affiliated to Fudan University, China
| | - Yunzhi Shen
- Huashan Hospital, Affiliated to Fudan University, China
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Xia H, Chen L, Shao D, Liu X, Wang Q, Zhu F, Guo Z, Gao L, Chen K. Vacuolar protein sorting 4 is required for silkworm metamorphosis. Insect Mol Biol 2019; 28:728-738. [PMID: 30955208 DOI: 10.1111/imb.12586] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Vacuolar protein sorting 4 (Vps4) not only functions with its positive regulator vacuolar protein sorting 20-associated 1 (Vta1) in the multivesicular body (MVB) pathway but also participates alone in MVB-unrelated cellular processes. However, its physiological roles at the organism level remain rarely explored. We previously identified their respective homologues Bombyx mori Vps4 (BmVps4) and BmVta1 from the silkworm, a model organism for insect research. In this study, we performed fluorescence quantitative real-time PCR and Western blot to globally characterize the transcription and protein expression profiles of BmVps4 and BmVta1 during silkworm development and in different silkworm tissues and organs. The results showed that they were significantly up-regulated in metamorphosis, adulthood and embryogenesis relative to larval stages, and displayed a roughly similar tissue-and-organ specificity for transcriptions in silkworm larvae. Importantly, BmVps4 was down-regulated during the early period of the fifth instar, reaching the lowest level of transcription on Day 6, then up-regulated from Day 7 to the wandering, spinning and pupal stages, and down-regulated again in adulthood. Moreover, knocking down BmVps4 by RNA interference significantly inhibited silk gland growth, shortened spinning time, prolonged pupation, reduced pupal size and weight, and increased moth wing defects. Together, our data demonstrate the critical and broad requirements for BmVps4 in silkworm metamorphosis.
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Affiliation(s)
- H Xia
- Institute of Life Sciences, Jiangsu University, Zhenjiang, China
| | - L Chen
- Institute of Life Sciences, Jiangsu University, Zhenjiang, China
| | - D Shao
- Institute of Life Sciences, Jiangsu University, Zhenjiang, China
| | - X Liu
- Institute of Life Sciences, Jiangsu University, Zhenjiang, China
| | - Q Wang
- Institute of Life Sciences, Jiangsu University, Zhenjiang, China
| | - F Zhu
- Institute of Life Sciences, Jiangsu University, Zhenjiang, China
| | - Z Guo
- Institute of Life Sciences, Jiangsu University, Zhenjiang, China
| | - L Gao
- Institute of Life Sciences, Jiangsu University, Zhenjiang, China
| | - K Chen
- Institute of Life Sciences, Jiangsu University, Zhenjiang, China
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Zhang Y, Shi SH, Li FL, Zhao CZ, Li AQ, Hou L, Xia H, Wang BS, Baltazar JL, Wang XJ, Zhao SZ. Global transcriptome analysis provides new insights in Thellungiella salsuginea stress response. Plant Biol (Stuttg) 2019; 21:796-804. [PMID: 31081576 DOI: 10.1111/plb.13006] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/26/2018] [Accepted: 05/08/2019] [Indexed: 05/13/2023]
Abstract
Thellungiella salsuginea is highly tolerant to abiotic stress, while its a close relative Arabidopsis thaliana is sensitive to stress. This characteristic makes T. salsuginea an excellent model for uncovering the mechanisms of abiotic stress tolerance. Abscisic acid (ABA) plays essential roles in plant abiotic and biotic stress tolerance. To test the changes in gene expression of T. salsuginea under ABA treatment, in this study, the transcriptomes of T. salsuginea roots and leaves were compared in response to exogenously application of ABA. The results showed that ABA treatment caused different expression of 2,200 and 3,305 genes in leaves and roots, respectively, compared with the untreated control. In particular, genes encoding transcription factors such as WRKY, MYB, NAC, GATA, ethylene-responsive factors (ERFs), heat stress transcription factors, basic helix-loop-helix, PLATZ and B3 domain-containing family members were enriched. In addition, 49 and 114 differentially expressed genes were identified as ABA-regulated genes, separately in leaves and roots, respectively, which were related to biotic and abiotic stresses. The expression levels of some genes were validated by qRT-PCR. Different responses of genes to ABA treatment were discovered in T. salsuginea and A. thaliana. This transcriptome analysis expands our understanding of the role of ABA in stress tolerance in T. salsuginea. Our study provides a wealth of information for improving stress tolerance in crop plants.
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Affiliation(s)
- Y Zhang
- Shandong Provincial Key Laboratory of Crop Genetic Improvement, Ecology and Physiology, Biotechnology Research Center, Shandong Academy of Agricultural Sciences, Jinan, China
| | - S H Shi
- Shandong Provincial Key Laboratory of Crop Genetic Improvement, Ecology and Physiology, Biotechnology Research Center, Shandong Academy of Agricultural Sciences, Jinan, China
- College of Life Science, Shandong Normal University, Jinan, China
| | - F L Li
- Shandong Provincial Key Laboratory of Crop Genetic Improvement, Ecology and Physiology, Biotechnology Research Center, Shandong Academy of Agricultural Sciences, Jinan, China
- Life Science College of Shandong University, Qingdao, China
| | - C Z Zhao
- Shandong Provincial Key Laboratory of Crop Genetic Improvement, Ecology and Physiology, Biotechnology Research Center, Shandong Academy of Agricultural Sciences, Jinan, China
- College of Life Science, Shandong Normal University, Jinan, China
| | - A Q Li
- Shandong Provincial Key Laboratory of Crop Genetic Improvement, Ecology and Physiology, Biotechnology Research Center, Shandong Academy of Agricultural Sciences, Jinan, China
| | - L Hou
- Shandong Provincial Key Laboratory of Crop Genetic Improvement, Ecology and Physiology, Biotechnology Research Center, Shandong Academy of Agricultural Sciences, Jinan, China
| | - H Xia
- Shandong Provincial Key Laboratory of Crop Genetic Improvement, Ecology and Physiology, Biotechnology Research Center, Shandong Academy of Agricultural Sciences, Jinan, China
- College of Life Science, Shandong Normal University, Jinan, China
| | - B S Wang
- College of Life Science, Shandong Normal University, Jinan, China
| | - J L Baltazar
- Instituto Tecnologico del Valle de Oaxaca, Oaxaca, Mexico
| | - X J Wang
- Shandong Provincial Key Laboratory of Crop Genetic Improvement, Ecology and Physiology, Biotechnology Research Center, Shandong Academy of Agricultural Sciences, Jinan, China
- College of Life Science, Shandong Normal University, Jinan, China
| | - S Z Zhao
- Shandong Provincial Key Laboratory of Crop Genetic Improvement, Ecology and Physiology, Biotechnology Research Center, Shandong Academy of Agricultural Sciences, Jinan, China
- College of Life Science, Shandong Normal University, Jinan, China
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Ma X, Xia H, Wang J, Zhu X, Huang F, Lu L, He L. Correction to: Re‑fracture and correlated risk factors in patients with osteoporotic vertebral fractures. J Bone Miner Metab 2019; 37:729. [PMID: 30941519 DOI: 10.1007/s00774-019-00999-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
In the Original publication of the article, the funding ID has been incorrectly published as (815602390) in the Acknowledgements.
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Affiliation(s)
- Xinling Ma
- School of Nursing, Fudan University, Shanghai, 200032, China
| | - Haiou Xia
- School of Nursing, Fudan University, Shanghai, 200032, China.
| | - Jinhua Wang
- Youjiang Medical University for Nationalities, Baise, 533000, China
- West China School of Basic Medical Sciences and Forensic Medicine, Sichuan University, Sichuan, 610041, China
| | - Xiaoxiao Zhu
- School of Nursing, Fudan University, Shanghai, 200032, China
| | - Fangyan Huang
- Youjiang Medical University for Nationalities, Baise, 533000, China
| | - Liuxue Lu
- The Affiliated Hospital of Youjiang Medical University for Nationalities, Baise, 533000, China
| | - Lanyan He
- The Affiliated Hospital of Youjiang Medical University for Nationalities, Baise, 533000, China
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Ma X, Xia H, Wang J, Zhu X, Huang F, Lu L, He L. Re-fracture and correlated risk factors in patients with osteoporotic vertebral fractures. J Bone Miner Metab 2019; 37:722-728. [PMID: 30465091 DOI: 10.1007/s00774-018-0974-4] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/10/2018] [Accepted: 10/31/2018] [Indexed: 02/07/2023]
Abstract
Re-fracture risk is higher following osteoporotic fracture. However, there is no accurately reported rate of re-fracture incidence in southwest China. The purpose of this study was to describe the osteoporotic vertebral fracture (OVF) survival for re-fracture state and analyze the risk of re-fracture. This historical cohort study was conducted in four hospitals in southwest China. Patients aged ≥ 50 years (n = 586) with OVF who were supposed to receive anti-osteoporosis drugs after the fracture were included (2012-2017). Telephone follow-up and referring case files were used to estimate the survival for re-fracture and identify the determinants of re-fracture. A total of 555 patients completed the follow-up investigation. Overall, 285 patients experienced a re-fracture, and the longest follow-up investigation time was 72 months. The survival rates for re-fracture at 12 months, 24 months, 36 months, and 48 months were 82.0%, 71.5%, 61.7%, and 34.0%, respectively. The factors correlated with re-fracture hazard were advanced age [hazard ratio (HR) = 1.996], being female (HR = 1.342), smoking (HR = 1.435), history of hypertension (HR = 1.219) and diabetes (HR = 3.271), and persistence of taking anti-osteoporosis drugs after fracture [0-3 months, 4-6 months, 7-12 months, and more than 12 months (HR = 0.703)]. OVF patients with advanced age, who were female, smoked, had fracture with hypertension or diabetes, and who complied poorly with anti-osteoporosis drug treatment presented higher prevalence of re-fracture and low anti-osteoporosis adherence in southwest China. The management of anti-osteoporosis after fracture is necessary in this area.
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Affiliation(s)
- Xinling Ma
- School of Nursing, Fudan University, Shanghai, 200032, China
| | - Haiou Xia
- School of Nursing, Fudan University, Shanghai, 200032, China.
| | - Jinhua Wang
- Youjiang Medical University for Nationalities, Baise, 533000, China
- West China School of Basic Medical Sciences and Forensic Medicine, Sichuan University, Sichuan, 610041, China
| | - Xiaoxiao Zhu
- School of Nursing, Fudan University, Shanghai, 200032, China
| | - Fangyan Huang
- Youjiang Medical University for Nationalities, Baise, 533000, China
| | - Liuxue Lu
- The Affiliated Hospital of Youjiang Medical University for Nationalities, Baise, 533000, China
| | - Lanyan He
- The Affiliated Hospital of Youjiang Medical University for Nationalities, Baise, 533000, China
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Lu M, Ma J, Lin Y, Zhang X, Shen Y, Xia H. Relationship between patient's health literacy and adherence to coronary heart disease secondary prevention measures. J Clin Nurs 2019; 28:2833-2843. [PMID: 30938879 DOI: 10.1111/jocn.14865] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [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: 12/27/2018] [Revised: 02/18/2019] [Accepted: 03/23/2019] [Indexed: 12/29/2022]
Abstract
AIMS AND OBJECTIVES To examine the relationship between health literacy (HL) and adherence to secondary coronary heart disease (CHD) prevention behaviours in patients in China. BACKGROUND Adherence of patients to secondary CHD prevention behaviours is important in order to slow or reverse disease progression. The relationship between HL and adherence is varied across populations and warrants further research in order to inform nurses caring for such patients how to direct their teaching. DESIGN A descriptive cross-sectional design. METHODS A total of 598 patients with CHD were recruited during hospitalisation for a myocardial revascularization procedure at either of two tertiary hospitals in China. Data were collected by self-report on demographics, HL and adherence to secondary CHD prevention behaviours (medication-taking and heart-healthy lifestyle) prior to this admission. HL was measured by the short version of European Health Literacy Survey Questionnaire (HLS-EU-Q16), while adherence was measured with the Medical Outcomes Study Specific Adherence Scale (MOS-SAS). Descriptive, chi-square test and regression analyses were conducted. The study was reported based on STROBE checklist. RESULTS Overall, 74.5% of the patients had limited HL. Adherence rates to medication-taking and heart-healthy lifestyle were 84.7% and 53.2%, respectively. HL was not significantly associated with medication adherence, but in regression models patients with limited HL demonstrated significantly increased odds for nonadherence to heart-healthy lifestyle (OR 1.69). CONCLUSION HL was not significantly associated with medication adherence but was related to heart-healthy lifestyle adherence. RELEVANCE TO CLINICAL PRACTICE Nurses should assess the health literacy of discharging patients with CHD and focus on patients with limited health literacy to improve heart-healthy lifestyle behaviours, and not just taking medications.
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Affiliation(s)
- Minmin Lu
- School of Nursing, Fudan University, Shanghai, China
| | - Jianying Ma
- Zhongshan Hospital Affiliated to Fudan University, Shanghai, China
| | - Ying Lin
- Zhongshan Hospital Affiliated to Fudan University, Shanghai, China
| | - Xian Zhang
- Zhongshan Hospital Affiliated to Fudan University, Shanghai, China
| | - Yunzhi Shen
- Huashan Hospital Affiliated to Fudan University, Shanghai, China
| | - Haiou Xia
- School of Nursing, Fudan University, Shanghai, China
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Salzano de Luna M, Ascione C, Santillo C, Verdolotti L, Lavorgna M, Buonocore GG, Castaldo R, Filippone G, Xia H, Ambrosio L. Optimization of dye adsorption capacity and mechanical strength of chitosan aerogels through crosslinking strategy and graphene oxide addition. Carbohydr Polym 2019; 211:195-203. [PMID: 30824079 DOI: 10.1016/j.carbpol.2019.02.002] [Citation(s) in RCA: 64] [Impact Index Per Article: 12.8] [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: 08/11/2018] [Revised: 01/16/2019] [Accepted: 02/01/2019] [Indexed: 10/27/2022]
Abstract
Chitosan (CS) aerogels were prepared by freeze-drying as potential adsorbents for water purification, and the effect of the strategy of crosslinking was investigated by varying the amount of crosslinker (glutaraldehyde) and the sequence of steps for the preparation of the aerogel. Two procedures were compared, in which the crosslinking step was carried out before or after the freeze-drying of the starting CS solution. When crosslinking was postponed after the freeze-drying step, the adsorption capacity towards an anionic dye, such as indigo carmine, considerably increased (up to +45%), reaching values as high as 534.4 ± 30.5 mg g-1. The same crosslinking strategy ensured a comparable improvement also in nanocomposite aerogels containing graphene oxide (GO), which was added to enhance the mechanical strength and provide adsorption capacity towards cationic dyes. Besides possessing good mechanical strength (compressive modulus higher than 1 MPa), the CS/GO aerogels were able to bind also cationic pollutants such as methylene blue. The maximum uptake capacity increased from 4.3 ± 1.6 to 168.6 ± 9.6 mg of cationic dye adsorbed per gram of adsorbent with respect to pristine CS aerogels.
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Affiliation(s)
- M Salzano de Luna
- Department of Chemical, Materials and Production Engineering (INSTM Consortium - UdR Naples), University of Naples Federico II, P.le Tecchio 80, 80125 Naples, Italy; Institute for Polymers, Composites and Biomaterials, National Research Council of Italy, P.le E. Fermi 1, 80055 Portici, Italy.
| | - C Ascione
- Institute for Polymers, Composites and Biomaterials, National Research Council of Italy, Via Campi Flegrei 34, 80078 Pozzuoli, Italy
| | - C Santillo
- Institute for Polymers, Composites and Biomaterials, National Research Council of Italy, P.le E. Fermi 1, 80055 Portici, Italy
| | - L Verdolotti
- Institute for Polymers, Composites and Biomaterials, National Research Council of Italy, P.le E. Fermi 1, 80055 Portici, Italy
| | - M Lavorgna
- Institute for Polymers, Composites and Biomaterials, National Research Council of Italy, P.le E. Fermi 1, 80055 Portici, Italy.
| | - G G Buonocore
- Institute for Polymers, Composites and Biomaterials, National Research Council of Italy, P.le E. Fermi 1, 80055 Portici, Italy
| | - R Castaldo
- Institute for Polymers, Composites and Biomaterials, National Research Council of Italy, Via Campi Flegrei 34, 80078 Pozzuoli, Italy
| | - G Filippone
- Department of Chemical, Materials and Production Engineering (INSTM Consortium - UdR Naples), University of Naples Federico II, P.le Tecchio 80, 80125 Naples, Italy
| | - H Xia
- State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute of Sichuan University, Chengdu 610065, China
| | - L Ambrosio
- Institute for Polymers, Composites and Biomaterials, National Research Council of Italy, Via Campi Flegrei 34, 80078 Pozzuoli, Italy
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Salzano de Luna M, Wang Y, Zhai T, Verdolotti L, Buonocore G, Lavorgna M, Xia H. Nanocomposite polymeric materials with 3D graphene-based architectures: from design strategies to tailored properties and potential applications. Prog Polym Sci 2019. [DOI: 10.1016/j.progpolymsci.2018.11.002] [Citation(s) in RCA: 58] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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Sy SKB, Zhuang L, Xia H, Schuck VJ, Nichols WW, Derendorf H. A model-based analysis of pharmacokinetic-pharmacodynamic (PK/PD) indices of avibactam against Pseudomonas aeruginosa. Clin Microbiol Infect 2018; 25:904.e9-904.e16. [PMID: 30394361 DOI: 10.1016/j.cmi.2018.10.014] [Citation(s) in RCA: 9] [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: 05/24/2018] [Revised: 10/11/2018] [Accepted: 10/17/2018] [Indexed: 11/28/2022]
Abstract
OBJECTIVE The aim of the present work was to use a semi-mechanistic pharmacokinetic-pharmacodynamic (PK/PD) model developed from in vitro time-kill measurements with P. aeruginosa to compare different pharmacodynamic indices derived from simulated human avibactam exposures, with respect to their degree of correlation with the modelled bacterial responses. METHODS A mathematical model of the effect of ceftazidime-avibactam on the growth dynamics of P. aeruginosa was used to simulate bacterial responses to modelled human exposures from fractionated avibactam dosing regimens with a fixed ceftazidime dosing regimen (2 or 8 g q8h as a 2-h infusion). The relatedness of the 24-h change in bacterial density and avibactam exposure parameters was evaluated to determine exposure parameter that closely correlated with bacterial growth/killing responses. RESULTS Frequent dosing was associated with higher efficacy, resulting in a reduction of avibactam daily dose. The best-fit PD index of avibactam determined from the simulation was fT > CT of 1 mg/L avibactam and q8h was the longest dosing interval able to achieve 2-log kill: 41-87% (3.3 h to 7.0 h out of 8-h interval, respectively). The avibactam exposure magnitude required to achieve a 2-log kill in the simulations was dependent on the susceptibility of the bacterial isolate to ceftazidime. CONCLUSIONS Avibactam activity in combination with ceftazidime against multidrug resistant P. aeruginosa correlated with fT > CT. Setting a threshold avibactam concentration to 1 mg/L, superimposed over a simulated human-like exposure of ceftazidime, achieved at least 2-log kill for the clinical dose of 500 mg q8h avibactam as a 2-h infusion, depending on the minimum inhibitory concentration of ceftazidime alone.
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Affiliation(s)
- S K B Sy
- Department of Pharmaceutics, College of Pharmacy, University of Florida, Gainesville, FL, USA
| | - L Zhuang
- Department of Pharmaceutics, College of Pharmacy, University of Florida, Gainesville, FL, USA
| | - H Xia
- Department of Molecular Genetics and Microbiology, College of Medicine, University of Florida, Gainesville, FL, USA
| | | | | | - H Derendorf
- Department of Pharmaceutics, College of Pharmacy, University of Florida, Gainesville, FL, USA.
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Xia H, Li YY, Liu ZC, Li YQ, Chen J. Transgenic Expression of chit42 gene from Metarhiziumanisopliae in Trichoderma harzianum Enhances Antagonistic Activity against Botrytis cinerea. Mol Biol 2018. [DOI: 10.1134/s002689331805014x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Xia H, Li YY, С Liu Z, Li YQ, Chen J. [Transgenic Expression of chit42 gene from Metarhizium anisopliae in Trichoderma harzianum Enhances Antagonistic Activity against Botrytis cinerea]. Mol Biol (Mosk) 2018; 52:773-781. [PMID: 30363052 DOI: 10.1134/s0026898418050142] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2017] [Accepted: 12/18/2017] [Indexed: 06/08/2023]
Abstract
Chitinases expressed by some beneficial fungi are crucial for the biocontrol of phytopathogens. The activity of chitinolytic strains of Trichoderma sp. may be enhanced by increasing the expression of chitinases. We describe the Trichoderma strain Mchit42 which expresses a transgenic chitinase chit42 from Metarhizium anisopliae. Inhibitory effects against plant pathogens were tested. Comparison of WT (T30) and OE (Mchit42) indicated that overexpression of M. anisopliae chit42 did not alter Trichoderma growth, while enhancing the expression of endogenous chitinase, β-l,3-glucanases, and polygalacturonase and increasing the antagonistic activity of Trichoderma against Botrytis cinerea. This work confirmed that the expression of the entomopathogenic fungi-sourced chit42 genes in Trichoderma harzianum enhances the efficiency of Trichoderma biocontrol against targeted pathogens.
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Affiliation(s)
- H Xia
- School of Agriculture and Biology, Shanghai Jiaotong University, Shanghai, 200240 P. R. China
- The key Laboratory of Urban Agriculture (South), Ministry of Agriculture, Shanghai, 200240 P. R. China
| | - Y Y Li
- School of Agriculture and Biology, Shanghai Jiaotong University, Shanghai, 200240 P. R. China
- The key Laboratory of Urban Agriculture (South), Ministry of Agriculture, Shanghai, 200240 P. R. China
| | - Z С Liu
- School of Agriculture and Biology, Shanghai Jiaotong University, Shanghai, 200240 P. R. China
- The key Laboratory of Urban Agriculture (South), Ministry of Agriculture, Shanghai, 200240 P. R. China
| | - Y Q Li
- School of Agriculture and Biology, Shanghai Jiaotong University, Shanghai, 200240 P. R. China
- The key Laboratory of Urban Agriculture (South), Ministry of Agriculture, Shanghai, 200240 P. R. China
| | - J Chen
- School of Agriculture and Biology, Shanghai Jiaotong University, Shanghai, 200240 P. R. China
- The key Laboratory of Urban Agriculture (South), Ministry of Agriculture, Shanghai, 200240 P. R. China
- State Key Laboratory of Microbial Metabolism, Shanghai Jiaotong University, Shanghai, 200240 P. R. China
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Ren HX, Tang QC, Yan L, Xia H, Luo HS. Evodiamine inhibits gastrointestinal motility via CCK and CCK1 receptor in water-avoidence stress rat model. Life Sci 2018; 209:210-216. [PMID: 30086275 DOI: 10.1016/j.lfs.2018.08.003] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2018] [Revised: 07/31/2018] [Accepted: 08/01/2018] [Indexed: 02/08/2023]
Abstract
AIM Evodiamine (EVO) has been reported to play an important role in regulating gastrointestinal motility, but the evidence is insufficient, and the mechanism remains unknown. The aim of this study is to investigate the possible role of EVO in stress-induced colonic hypermotility and the potential mechanisms via both in vivo and in vitro investigations. METHODS Male Sprague-Dawley rats were exposed to water avoidance stress (WAS) for 1 h or sham WAS daily for 10 consecutive days to construct the rat model. The colonic contractile activity was studied in an organ bath system. The serum CCK-8 level was detected using an enzyme immunoassay kit, and gastrointestinal transit was detected by intragastric administration of India ink. RESULTS WAS induced gastrointestinal hypermotility in male rats. EVO significantly inhibited the contractile activity of colonic muscle strips; this effect was not blocked by TTX and the CCK1 receptor antagonist devazepide. Chronic WAS induced a slight but nonsignificant increase in the serum CCK-8 level, while EVO elevated the serum CCK-8 level in the WAS rats in a dose-dependent manner. Exogenous CCK-8 significantly inhibited the contractile activity of the colonic muscle strips; this effect was not blocked by TTX but was completely blocked by devazepide. Both EVO and CCK-8 inhibited gastrointestinal transit, and the effect of EVO could be partially blocked by devazepide. SIGNIFICANCE EVO can reverse stress-induced gastrointestinal hypermotility. This effect may partially occur as a result of promoting the release of CCK and then activating the CCK1 receptor instead of directly activating the CCK1 receptor.
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Affiliation(s)
- H X Ren
- Department of Gastroenterology, Renmin Hospital of Wuhan University, 430060, China
| | - Q C Tang
- Department of Gastroenterology, Renmin Hospital of Wuhan University, 430060, China
| | - L Yan
- Department of Gastroenterology, Renmin Hospital of Wuhan University, 430060, China
| | - H Xia
- Department of Gastroenterology, Renmin Hospital of Wuhan University, Key Laboratory of Hubei Province for Digestive System Diseases, 430060, China
| | - H S Luo
- Department of Gastroenterology, Renmin Hospital of Wuhan University, Key Laboratory of Hubei Province for Digestive System Diseases, 430060, China.
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Xia H, Picart P, Montresor S, Guo R, Li J, Yusuf Solieman O, Durand JC, Fages M. Mechanical behavior of CAD/CAM occlusal ceramic reconstruction assessed by digital color holography. Dent Mater 2018; 34:1222-1234. [DOI: 10.1016/j.dental.2018.05.007] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2017] [Revised: 04/30/2018] [Accepted: 05/04/2018] [Indexed: 10/16/2022]
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Guo X, Song X, Chen X, Liu W, Wang H, Xia H. A novel technique for endobronchial blocker placement for one-lung ventilation in children under 2 years. Acta Anaesthesiol Scand 2018; 62:765-772. [PMID: 29512132 DOI: 10.1111/aas.13099] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2017] [Revised: 01/04/2018] [Accepted: 02/11/2018] [Indexed: 11/29/2022]
Abstract
BACKGROUND The present study aimed to report our clinical experience with intraluminal calculated distance for endobronchial blocker placement (ICEB) and to find out whether ICEB could reduce the number of hypoxemia episodes during blocker placement compared with extraluminal blocker placement for one-lung ventilation in children under the age of 2 years. METHODS The medical records of all children under the age of 2 years with a 5 French (F) or 4F WeiLi (WeiLi medical Inc, Guangzhou, China) endobronchial blocker for one-lung ventilation in thoracic surgery from July 2015 through July 2016 were retrospectively reviewed. After November 2015, one-lung ventilation was achieved using the ICEB technique, while before November 2015, extraluminal blocker placement was used. The success rate of blocker placement, quality of lung deflation, number of hypoxemia episodes, blocker dislodgement, and successful reposition after dislodgement were compared between the two groups. RESULT The incidence of hypoxemia episodes during blocker placement was lower in the ICEB group compared to the extraluminal placement group. Moreover, the success rate of blocker reposition during the operation was higher in the ICEB group than the extraluminal placement group. The success rate of endobronchial blocker placement was similar between the two groups. CONCLUSIONS Intraluminal calculated distance for endobronchial blocker placement is a feasible method to achieve lung isolation and could reduce hypoxemia episodes during blocker placement in children under the age of 2 years.
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Affiliation(s)
- X. Guo
- Department of Anesthesia; Guangzhou Women and Children's Medical Center; Guangzhou Guangdong China
| | - X. Song
- Department of Anesthesia; Guangzhou Women and Children's Medical Center; Guangzhou Guangdong China
| | - X. Chen
- Department of Anesthesia; Guangzhou Women and Children's Medical Center; Guangzhou Guangdong China
| | - W. Liu
- Department of Pediatric Surgery; Guangzhou Women and Children's Medical Center; Guangzhou Guangdong China
| | - H. Wang
- Department of Pediatric Surgery; Guangzhou Women and Children's Medical Center; Guangzhou Guangdong China
| | - H. Xia
- Department of Anesthesia; Guangzhou Women and Children's Medical Center; Guangzhou Guangdong China
- Department of Pediatric Surgery; Guangzhou Women and Children's Medical Center; Guangzhou Guangdong China
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Charlton J, Xia H, Hunt M, Shull P. Over-ground walking validation of a smart shoe for estimating foot progression angle. Osteoarthritis Cartilage 2018. [DOI: 10.1016/j.joca.2018.02.767] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/16/2023]
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Affiliation(s)
- S. Kaciulis
- Institute for the Study of Nanostructured Materials; ISMN-CNR; Rome Italy
| | - A. Mezzi
- Institute for the Study of Nanostructured Materials; ISMN-CNR; Rome Italy
| | - P. Soltani
- Institute for the Study of Nanostructured Materials; ISMN-CNR; Rome Italy
| | - T. de Caro
- Institute for the Study of Nanostructured Materials; ISMN-CNR; Rome Italy
| | - H. Xia
- State Key Laboratory of Polymer Materials and Engineering; Sichuan University; Chengdu China
| | - Y.L. Wang
- Institute of Polymers, Composites and Biomedical Materials; IPCB-CNR; Naples Italy
- Xi'an Modern Chemistry Research Institute; Xi'an China
| | - T. Zhai
- Institute of Polymers, Composites and Biomedical Materials; IPCB-CNR; Naples Italy
- Guizhou Building Material Quality Supervision Testing Center; Guiyang China
| | - M. Lavorgna
- Institute of Polymers, Composites and Biomedical Materials; IPCB-CNR; Naples Italy
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Ragavendran K, Xia H, Mandal P, Arof AK. Jahn-Teller effect in LiMn 2O 4: influence on charge ordering, magnetoresistance and battery performance. Phys Chem Chem Phys 2018; 19:2073-2077. [PMID: 28044160 DOI: 10.1039/c6cp07289e] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The phase transition near room temperature in LiMn2O4 was studied using thermal expansion measurements, and directly compared with the electrochemical performance of the material. Studies based on thermal expansion indicate the onset of a first-order phase transition at Tc ∼ 220 K for the nearly half-doped material, with [Mn3+]/[Mn4+] ≈ 1. The Tc shifts to a higher temperature, ∼290 K, and signatures for Verwey-type charge ordering at 290 K can be observed when the fraction of Jahn-Teller Mn3+ in LiMn2O4 is increased, i.e., [Mn3+]/[Mn4+] > 1. These studies show that the first-order phase transition near room temperature in LiMn2O4 is associated with charge ordering, which ultimately is a consequence of the Jahn-Teller effect. In addition, the Jahn-Teller effect is proven to be an important cause of magnetoresistance and electrochemical capacity fading in LiMn2O4. Electrochemical measurements show that both materials, either with a Tc ∼ 220 K or Tc ∼ 290 K, exhibit capacity fading to almost the same extent. Electrochemical capacity retention is observed only in nanosized LiMn2O4, for which the phase transition anomalies are completely absent.
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Affiliation(s)
- K Ragavendran
- Condensed Matter Physics Division, Saha Institute of Nuclear Physics, Kolkata 700064, India.
| | - H Xia
- School of Materials Science and Engineering, Nanjing University of Science and Technology, Xiaolingwei 200, Nanjing, Jiangsu 210094, China
| | - P Mandal
- Condensed Matter Physics Division, Saha Institute of Nuclear Physics, Kolkata 700064, India.
| | - A K Arof
- Center for Ionics, Department of Physics, University of Malaya, Kuala Lumpur 50603, Malaysia
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Xia H, Ye J, Wang L, Zhu J, He Z. A case of severe glutathione synthetase deficiency with novel GSS mutations. ACTA ACUST UNITED AC 2018; 51:e6853. [PMID: 29340523 PMCID: PMC5769757 DOI: 10.1590/1414-431x20176853] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2017] [Accepted: 10/09/2017] [Indexed: 12/01/2022]
Abstract
Glutathione synthetase deficiency (GSSD) is a rare inborn error of glutathione metabolism with autosomal recessive inheritance. The severe form of the disease is characterized by acute metabolic acidosis, usually present in the neonatal period with hemolytic anemia and progressive encephalopathy. A case of a male newborn infant who had severe metabolic acidosis with high anion gap, hemolytic anemia, and hyperbilirubinemia is reported. A high level of 5-oxoproline was detected in his urine and a diagnosis of generalized GSSD was made. DNA sequence analysis revealed the infant to be compound heterozygous with two mutations, c.738dupG in exon 8 of GSS gene resulting in p.S247fs and a repetitive sequence in exon 3 of GSS gene. Treatment after diagnosis of GSSD included supplementation with antioxidants and oral sodium hydrogen bicarbonate. However, he maintained a variable degree of metabolic acidosis and succumbed shortly after his parents requested discontinuation of therapy because of dismal prognosis and medical futility when he was 18 days old.
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Affiliation(s)
- H Xia
- Department of Neonatology, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - J Ye
- Department of Pediatric Endocrinology and Genetic Metabolism, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.,Shanghai Institute for Pediatric Research, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - L Wang
- Department of Neonatology, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - J Zhu
- Department of Neonatology, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Z He
- Department of Neonatology, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.,Shanghai Institute for Pediatric Research, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
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48
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Li W, Huang L, Zeng J, Lin W, Li K, Sun J, Huang W, Chen J, Wang G, Ke Q, Duan J, Lai X, Chen R, Liu M, Liu Y, Wang T, Yang X, Chen Y, Xia H, Xiang AP. Characterization and transplantation of enteric neural crest cells from human induced pluripotent stem cells. Mol Psychiatry 2018; 23:499-508. [PMID: 27777423 PMCID: PMC5822467 DOI: 10.1038/mp.2016.191] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/05/2015] [Revised: 08/07/2015] [Accepted: 09/14/2016] [Indexed: 12/30/2022]
Abstract
The enteric nervous system (ENS) is recognized as a second brain because of its complexity and its largely autonomic control of bowel function. Recent progress in studying the interactions between the ENS and the central nervous system (CNS) has implicated alterations of the gut/brain axis as a possible mechanism in the pathophysiology of autism spectrum disorders (ASDs), Parkinson's disease (PD) and other human CNS disorders, whereas the underlying mechanisms are largely unknown because of the lack of good model systems. Human induced pluripotent stem cells (hiPSCs) have the ability to proliferate indefinitely and differentiate into cells of all three germ layers, thus making iPSCs an ideal source of cells for disease modelling and cell therapy. Here, hiPSCs were induced to differentiate into neural crest stem cells (NCSCs) efficiently. When co-cultured with smooth muscle layers of ganglionic gut tissue, the NCSCs differentiated into different subtypes of mature enteric-like neurons expressing nitric oxide synthase (nNOS), vasoactive intestinal polypeptide (VIP), choline acetyltransferase (ChAT) or calretinin with typical electrophysiological characteristics of functional neurons. Furthermore, when they were transplanted into aneural or aganglionic chick, mouse or human gut tissues in ovo, in vitro or in vivo, hiPSC-derived NCSCs showed extensive migration and neural differentiation capacity, generating neurons and glial cells that expressed phenotypic markers characteristic of the enteric nervous system. Our results indicate that enteric NCSCs derived from hiPSCs supply a powerful tool for studying the pathogenesis of gastrointestinal disorders and brain/gut dysfunction and represent a potentially ideal cell source for enteric neural transplantation treatments.
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Affiliation(s)
- W Li
- Program of Stem Cells and Regenerative Medicine, Affiliated Guangzhou Women and Children’s Hospital, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China,Center for Stem Cell Biology and Tissue Engineering, Key Laboratory for Stem Cells and Tissue Engineering, Ministry of Education, Sun Yat-sen University, Guangzhou, China,Department of Biochemistry, Zhongshan Medical School, Sun Yat-sen University, Guangzhou, China,Guangdong Key Laboratory of Reproductive Medicine, Guangzhou, Guangdong, China
| | - L Huang
- Program of Stem Cells and Regenerative Medicine, Affiliated Guangzhou Women and Children’s Hospital, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China,Center for Stem Cell Biology and Tissue Engineering, Key Laboratory for Stem Cells and Tissue Engineering, Ministry of Education, Sun Yat-sen University, Guangzhou, China
| | - J Zeng
- Program of Stem Cells and Regenerative Medicine, Affiliated Guangzhou Women and Children’s Hospital, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China,Department of Pediatric Surgery, Guangzhou Women and Children's Medical Centre, Guangzhou, China
| | - W Lin
- Department of Blood Transfusion, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - K Li
- Department of Ultrasound, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - J Sun
- Program of Stem Cells and Regenerative Medicine, Affiliated Guangzhou Women and Children’s Hospital, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China,Center for Stem Cell Biology and Tissue Engineering, Key Laboratory for Stem Cells and Tissue Engineering, Ministry of Education, Sun Yat-sen University, Guangzhou, China
| | - W Huang
- Program of Stem Cells and Regenerative Medicine, Affiliated Guangzhou Women and Children’s Hospital, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China,Center for Stem Cell Biology and Tissue Engineering, Key Laboratory for Stem Cells and Tissue Engineering, Ministry of Education, Sun Yat-sen University, Guangzhou, China
| | - J Chen
- Department of Histology and Embryology, School of Medicine, Jinan University, Guangzhou, China
| | - G Wang
- Department of Histology and Embryology, School of Medicine, Jinan University, Guangzhou, China
| | - Q Ke
- Program of Stem Cells and Regenerative Medicine, Affiliated Guangzhou Women and Children’s Hospital, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China,Center for Stem Cell Biology and Tissue Engineering, Key Laboratory for Stem Cells and Tissue Engineering, Ministry of Education, Sun Yat-sen University, Guangzhou, China,Department of Cell Biology, Zhongshan Medical School, Sun Yat-sen University, Guangzhou, China
| | - J Duan
- Center for Neurobiology, Zhongshan School of Medicine, Sun Yat-Sen University, Guangzhou, China
| | - X Lai
- Program of Stem Cells and Regenerative Medicine, Affiliated Guangzhou Women and Children’s Hospital, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China,Center for Stem Cell Biology and Tissue Engineering, Key Laboratory for Stem Cells and Tissue Engineering, Ministry of Education, Sun Yat-sen University, Guangzhou, China
| | - R Chen
- Center for Reproductive Medicine, Key Laboratory for Reproductive Medicine of Guangdong Province, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - M Liu
- Program of Stem Cells and Regenerative Medicine, Affiliated Guangzhou Women and Children’s Hospital, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China,Center for Stem Cell Biology and Tissue Engineering, Key Laboratory for Stem Cells and Tissue Engineering, Ministry of Education, Sun Yat-sen University, Guangzhou, China
| | - Y Liu
- Shenzhen Beike Cell Engineering Research Institute, Shenzhen, China
| | - T Wang
- Program of Stem Cells and Regenerative Medicine, Affiliated Guangzhou Women and Children’s Hospital, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China,Center for Stem Cell Biology and Tissue Engineering, Key Laboratory for Stem Cells and Tissue Engineering, Ministry of Education, Sun Yat-sen University, Guangzhou, China,Department of Biochemistry, Zhongshan Medical School, Sun Yat-sen University, Guangzhou, China
| | - X Yang
- Department of Histology and Embryology, School of Medicine, Jinan University, Guangzhou, China
| | - Y Chen
- Center for Neurobiology, Zhongshan School of Medicine, Sun Yat-Sen University, Guangzhou, China
| | - H Xia
- Program of Stem Cells and Regenerative Medicine, Affiliated Guangzhou Women and Children’s Hospital, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China,Department of Pediatric Surgery, Guangzhou Women and Children's Medical Centre, Guangzhou, China,Guangzhou Women and Children's Medical Centre, No. 9, Jinsui Road, Guangzhou, Guangdong 510623, China
| | - A P Xiang
- Program of Stem Cells and Regenerative Medicine, Affiliated Guangzhou Women and Children’s Hospital, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China,Center for Stem Cell Biology and Tissue Engineering, Key Laboratory for Stem Cells and Tissue Engineering, Ministry of Education, Sun Yat-sen University, Guangzhou, China,Department of Biochemistry, Zhongshan Medical School, Sun Yat-sen University, Guangzhou, China,Guangdong Key Laboratory of Reproductive Medicine, Guangzhou, Guangdong, China,Center for Stem Cell Biology and Tissue Engineering, Sun Yat-sen University, No. 74, Zhongshan 2nd Road, Guangzhou, Guangdong 510080, China. E-mail: or
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49
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Khanal G, Huynh RA, Torabian K, Xia H, Vörös E, Shevkoplyas SS. Towards bedside washing of stored red blood cells: a prototype of a simple apparatus based on microscale sedimentation in normal gravity. Vox Sang 2017; 113:31-39. [PMID: 29067695 DOI: 10.1111/vox.12605] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [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: 04/23/2017] [Revised: 09/02/2017] [Accepted: 09/20/2017] [Indexed: 12/20/2022]
Abstract
BACKGROUND AND OBJECTIVES Infusion of by-products of red blood cell (RBC) storage-induced degradation as well as of the residual plasma proteins and the anticoagulant-preservative solution contained in units of stored blood serve no therapeutic purpose and may be harmful to some patients. Here, we describe a prototype of a gravity-driven system for bedside washing of stored RBCs. MATERIALS AND METHODS Stored RBCs were diluted to 10% haematocrit (Hct) with normal saline, matching the conventional washing procedure. The dilute RBC suspensions were passed through a column of coiled tubing to allow RBC sedimentation in normal gravity, thus separating them from the washing solution. Washed RBCs were collected using bifurcations located along the tubing. Washing efficiency was quantified by measuring Hct, morphology, deformability, free haemoglobin and total-free protein. RESULTS The gravity-driven washing system operating at 0·5 ml/min produced washed RBCs with final Hct of 36·7 ± 3·4% (32·3-41·2%, n = 10) and waste Hct of 3·4 ± 0·7% (2·4-4·3%, n = 10), while removing 80% of free haemoglobin and 90% of total-free protein. Washing improved the ability of stored RBCs to perfuse an artificial microvascular network by 20%. The efficiency of washing performed using the gravity-driven system was not significantly different than that of conventional centrifugation. CONCLUSIONS This proof-of-concept study demonstrates the feasibility of washing stored RBCs using a simple, disposable system with efficiency comparable to that of conventional centrifugation, and thus represents a significant first step towards enabling low-cost washing of stored blood at bedside.
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Affiliation(s)
- G Khanal
- Department of Biomedical Engineering, University of Houston, Houston, TX, USA
| | - R A Huynh
- Department of Biomedical Engineering, University of Houston, Houston, TX, USA
| | - K Torabian
- Department of Biomedical Engineering, University of Houston, Houston, TX, USA
| | - H Xia
- Department of Biomedical Engineering, University of Houston, Houston, TX, USA
| | - E Vörös
- Department of Biomedical Engineering, University of Houston, Houston, TX, USA
| | - S S Shevkoplyas
- Department of Biomedical Engineering, University of Houston, Houston, TX, USA
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50
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Zhang F, Yang Y, Bai T, Sun L, Sun M, Shi X, Zhu M, Ge M, Xia H. Effect of pumping pressure on onset of lactation after caesarean section: A randomized controlled study. Matern Child Nutr 2017; 14. [PMID: 28752645 DOI: 10.1111/mcn.12486] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/25/2016] [Revised: 06/06/2017] [Accepted: 06/16/2017] [Indexed: 11/28/2022]
Abstract
Caesarean section is associated with weaker newborn suction pressure. This nonblinded, randomized trial explored the effect of suction pressures generating by a breast pump on mothers' onset of lactation and milk supply after caesarean section. A high pressure group (-150 mmHg), a low pressure group (-100 mmHg), and a control group (none) were generated under computer random assignment with concealed allocation in 2 tertiary hospitals. The breast pumping began within 2 hr after caesarean operation (6 times a day and 30 min per time) until onset of lactation. The primary outcomes were the timing of onset of lactation, milk supply, and mother's satisfaction in lactation, using both intention-to-treat and per-protocol analyses. The secondary endpoints were the pumping-related pain, nipple injury, and maternal fatigue. All 164 women randomized were included in analysis. The breast pumping at -150 mmHg optimally advanced the timing of the onset of lactation and increased daytime milk supply. The pumping also appeared to boost mothers' confidence in lactation. The results in the per-protocol population (n = 148) were consistent with those of intention-to-treat population (n = 164). However, the pumping aggravated maternal nipple pain and fatigue, though there was no statistical significance. The findings suggest that a higher pumping pressure within the range of normal vaginally born infant suction could promote onset of lactation and milk supply among mothers giving birth by caesarean section. The pumping could also enhance mothers' confidence in breastfeeding.
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Affiliation(s)
- Feng Zhang
- School of Nursing, Fudan University, Shanghai, China.,School of Nursing, Nantong University, Nantong City, Jiangsu Province, China
| | - Yahui Yang
- School of Nursing, Nantong University, Nantong City, Jiangsu Province, China
| | - Ting Bai
- School of Nursing, Nantong University, Nantong City, Jiangsu Province, China
| | - Lele Sun
- School of Nursing, Nantong University, Nantong City, Jiangsu Province, China
| | - Mingzhu Sun
- School of Nursing, Nantong University, Nantong City, Jiangsu Province, China
| | - Xueling Shi
- School of Nursing, Nantong University, Nantong City, Jiangsu Province, China
| | - Meng Zhu
- School of Nursing, Nantong University, Nantong City, Jiangsu Province, China
| | - Meijuan Ge
- School of Nursing, Nantong University, Nantong City, Jiangsu Province, China
| | - Haiou Xia
- School of Nursing, Fudan University, Shanghai, China
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