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Zhan Y, Burkel B, Leaman EJ, Ponik SM, Behkam B. Tumor Stroma Content Regulates Penetration and Efficacy of Tumor-targeting Bacteria. bioRxiv 2024:2024.03.29.587035. [PMID: 38585966 PMCID: PMC10996712 DOI: 10.1101/2024.03.29.587035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/09/2024]
Abstract
Bacteria-based cancer therapy (BBCT) strains grow selectively in primary tumors and metastases, colonize solid tumors independent of genetics, and kill cells resistant to standard molecular therapy. Clinical trials of BBCT in solid tumors have not reported any survival advantage yet, partly due to the limited bacterial colonization. Collagen, abundant in primary and metastatic solid tumors, has a well-known role in hindering intratumoral penetration of therapeutics. Nevertheless, the effect of collagen content on the intratumoral penetration and antitumor efficacy of BBCT is rarely unexplored. We hypothesized that the presence of collagen limits the penetration and, thereby, the antitumor effects of tumor-selective Salmonella. Typhimurium VNP20009 cheY+. We tested our hypothesis in low and high collagen content tumor spheroid models of triple-negative murine breast cancer. We found that high collagen content significantly hinders bacteria transport in tumors, reducing bacteria penetration and distribution by ~7-fold. The higher penetration of bacteria in low collagen-content tumors led to an overwhelming antitumor effect (~73% increase in cell death), whereas only a 28% increase in cell death was seen in the high collagen-content tumors. Our mathematical modeling of intratumoral bacterial colonization delineates the role of growth and diffusivity, suggesting an order of magnitude lower diffusivity in the high collagen-content tumors dominates the observed outcomes. Finally, our single-cell resolution analysis reveals a strong spatial correlation between bacterial spatial localization and collagen content, further corroborating that collagen acts as a barrier to bacterial penetration despite S. Typhimurium VNP20009 cheY+ motility. Understanding the effect of collagen on BBCT performance could lead to engineering more efficacious BBCT strains capable of overcoming this barrier to colonization of primary tumors and metastases.
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Affiliation(s)
- Y. Zhan
- Department of Mechanical Engineering, Virginia Tech, Blacksburg, VA, USA
| | - B. Burkel
- Department of Cell and Regenerative Biology, University of Wisconsin-Madison, Madison, WI, USA
| | - E. J. Leaman
- Department of Mechanical Engineering, Virginia Tech, Blacksburg, VA, USA
| | - S. M. Ponik
- Department of Cell and Regenerative Biology, University of Wisconsin-Madison, Madison, WI, USA
| | - B. Behkam
- Department of Mechanical Engineering, Virginia Tech, Blacksburg, VA, USA
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Nie L, Huang Y, Cheng Z, Luo H, Zhan Y, Dou K, Ma C, Yu C, Luo C, Liu Z, Liu S, Zhu Y. An intranasal influenza virus vector vaccine protects against Helicobacter pylori in mice. J Virol 2024; 98:e0192323. [PMID: 38358289 PMCID: PMC10949480 DOI: 10.1128/jvi.01923-23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2023] [Accepted: 01/22/2024] [Indexed: 02/16/2024] Open
Abstract
Helicobacter pylori is a human pathogen that infects almost half of the population. Antibiotic resistance in H. pylori threatens health and increases the demand for prophylactic and therapeutic vaccines. Traditional oral vaccine research faces considerable challenges because of the epithelial barrier, potential enterotoxicity of adjuvants, and the challenging conditions of the gastric environment. We developed an intranasal influenza A virus (IAV) vector vaccine based on two live attenuated influenza viruses with modified acidic polymerase protein (PA) genes encoding the A subunit of H. pylori neutrophil-activating protein (NapA), named IAV-NapA, including influenza virus A/WSN/33 (WSN)-NapA and A/Puerto Rico/8/34 (PR8)-NapA. These recombinant influenza viruses were highly attenuated and exhibited strong immunogenicity in mice. Vaccination with IAV-NapA induced antigen-specific humoral and mucosal immune responses while stimulating robust Th1 and Th17 cell immune responses in mice. Our findings suggest that prophylactic and therapeutic vaccination with influenza virus vector vaccines significantly reduces colonization of H. pylori and inflammation in the stomach of mice.IMPORTANCEHelicobacter pylori is the most common cause of chronic gastritis and leads to severe gastroduodenal pathology in some patients. Many studies have shown that Th1 and Th17 cellular and gastric mucosal immune responses are critical in reducing H. pylori load. IAV vector vaccines can stimulate these immune responses while overcoming potential adjuvant toxicity and antigen dosing issues. To date, no studies have demonstrated the role of live attenuated IAV vector vaccines in preventing and treating H. pylori infection. Our work indicates that vaccination with IAV-NapA induces antigen-specific humoral, cellular, and mucosal immunity, producing a protective and therapeutic effect against H. pylori infection in BALB/c mice. This undescribed H. pylori vaccination approach may provide valuable information for developing vaccines against H. pylori infection.
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Affiliation(s)
- Longyu Nie
- State Key Laboratory of Virology, Modern Virology Research Center, College of Life Sciences, Wuhan University, Wuhan, China
| | - Yu Huang
- State Key Laboratory of Virology, Modern Virology Research Center, College of Life Sciences, Wuhan University, Wuhan, China
| | - Zhikui Cheng
- State Key Laboratory of Virology, Modern Virology Research Center, College of Life Sciences, Wuhan University, Wuhan, China
| | - Hao Luo
- State Key Laboratory of Virology, Modern Virology Research Center, College of Life Sciences, Wuhan University, Wuhan, China
| | - Yuxin Zhan
- State Key Laboratory of Virology, Modern Virology Research Center, College of Life Sciences, Wuhan University, Wuhan, China
| | - Kaiwen Dou
- State Key Laboratory of Virology, Modern Virology Research Center, College of Life Sciences, Wuhan University, Wuhan, China
| | - Caijiao Ma
- State Key Laboratory of Virology, Modern Virology Research Center, College of Life Sciences, Wuhan University, Wuhan, China
| | - Chen Yu
- State Key Laboratory of Virology, Modern Virology Research Center, College of Life Sciences, Wuhan University, Wuhan, China
| | - Chuanjin Luo
- State Key Laboratory of Virology, Modern Virology Research Center, College of Life Sciences, Wuhan University, Wuhan, China
| | - Zhiqiang Liu
- State Key Laboratory of Virology, Modern Virology Research Center, College of Life Sciences, Wuhan University, Wuhan, China
| | - Shi Liu
- State Key Laboratory of Virology, Modern Virology Research Center, College of Life Sciences, Wuhan University, Wuhan, China
| | - Ying Zhu
- State Key Laboratory of Virology, Modern Virology Research Center, College of Life Sciences, Wuhan University, Wuhan, China
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Ji Q, Lian W, Meng Y, Liu W, Zhuang M, Zheng N, Karlsson IK, Zhan Y. Cytomegalovirus Infection and Alzheimer's Disease: A Meta-Analysis. J Prev Alzheimers Dis 2024; 11:422-427. [PMID: 38374748 DOI: 10.14283/jpad.2023.126] [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] [Indexed: 02/21/2024]
Abstract
BACKGROUND Evidence on the association of cytomegalovirus (CMV) infection with Alzheimer's disease (AD) is scarce and the results are inconsistent. OBJECTIVE To investigate the association of CMV infection with the risk of AD. METHODS Observational studies on the relationship between CMV infection and AD were identified from PubMed, Embase, Web of Science, and the Cochrane Library until September 30, 2022. The quality of included studies was assessed using the Newcastle-Ottawa Scale. Random-effect meta-analysis was performed using a generic inverse-variance method, followed by sensitivity analyses and subgroup analyses based on study designs, regions, adjustments, and population types. RESULTS Our search yielded 870 articles, of which 200 were duplicates and 663 did not meet the inclusion criteria, and finally yielded seven studies with 6,772 participants. No strong evidence was observed in the summary analysis for the association of CMV infection and risk of AD (odds ratio [OR] = 1.33; 95% confidence interval [CI]: 0.88, 2.03, I2 =69.9%). However, subgroup analysis showed that an increased risk of AD was detected in East Asians (OR = 2.39; 95% CI: 1.63, 3.50, I2 = 0.00%), cohort studies (OR = 1.99; 95% CI: 1.35, 2.94, I2 = 28.20%), and studies with confounder adjustment (OR = 2.05; 95% CI: 1.52, 2.77, I2 = 0.00%). CONCLUSIONS This meta-analysis provides evidence to support the heterogeneity of the associations between CMV infection and AD. Future studies with larger sample sizes and multi-ethnic populations are necessary.
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Affiliation(s)
- Q Ji
- Yiqiang Zhan, Department of Epidemiology, School of Public Health (Shenzhen), Sun Yat-Sen University, Shenzhen, China; Tel: 0755-23260106; E-mail:
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Liu Y, Wang S, Liu J, Su M, Diao X, Liang X, Zhang J, Wang Q, Zhan Y. Characteristics of vaginal microbiota in various cervical intraepithelial neoplasia: a cross-sectional study. J Transl Med 2023; 21:816. [PMID: 37974192 PMCID: PMC10652498 DOI: 10.1186/s12967-023-04676-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2023] [Accepted: 10/29/2023] [Indexed: 11/19/2023] Open
Abstract
BACKGROUND Precancerous lesions of cervical cancer exhibit characteristics indicative of natural progression. To prevent overtreatment of patients whose cervical intraepithelial neoplasia (CIN) in regression and to predict the onset of invasive cervical cancer at an early stage, we've identified the vaginal microbiome as a potential key factor, which is associated with both HPV infection and the various cervical intraepithelial neoplasia. This study aims to investigate the microbiome characteristics of patients with various cervical intraepithelial neoplasia. METHODS Utilizing high-throughput 16S ribosomal RNA (16S rRNA) sequencing technology, a description of the characteristics and community composition of Vaginal Microbiota (VMB) was conducted among 692 Chinese women infected with the High-risk Human Papillomavirus (HR-HPV). RESULTS As the grade of the lesions increased, the proportions of Lactobacillus and Pseudomonas demonstrated a significant declining trend, while the proportions of Gardnerella, Dialister, and Prevotella significantly increased. The diversity of the VMB was more significant in high-grade CIN. Furthermore, KEGG pathway enrichment analysis indicates that high-grade cervical intraepithelial neoplasia can inhibit various pathways, including those of phosphotransferase system, transcription factors, Fructose and mannose metabolism, amino sugar and nucleotide sugar metabolism, and galactose metabolism, which may contribute to the development of early cervical cancer symptoms. CONCLUSION Patients with CIN exhibit a distinct vaginal microbial profile characterized by a decrease in Lactobacillus and Pseudomonas, and an increase in Gardnerella, Prevotella, and Dialister. The proliferation and diminution of these two types of microbial communities are interrelated, suggesting a mutual restraint and balance among them. Disruption of this regulatory balance could potentially lead to the onset of cervical lesions and carcinogenesis. Retrospectively registered: This study was approved by the Ethics Committee of the Beijing Chaoyang Hospital affiliated with the Capital Medical University (NO.2023-S-415).
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Affiliation(s)
- Yiran Liu
- Department of Obstetrics and Gynecology, Beijing Chaoyang Hospital Affiliated With Capital Medical University, 8 Gongti South Road, Chaoyang District, Beijing, 100020, China
| | - Shuzhen Wang
- Department of Obstetrics and Gynecology, Beijing Chaoyang Hospital Affiliated With Capital Medical University, 8 Gongti South Road, Chaoyang District, Beijing, 100020, China.
| | - Jun Liu
- Department of Obstetrics and Gynecology, Beijing Chaoyang Hospital Affiliated With Capital Medical University, 8 Gongti South Road, Chaoyang District, Beijing, 100020, China.
| | - Mingrui Su
- Department of Obstetrics and Gynecology, Beijing Chaoyang Hospital Affiliated With Capital Medical University, 8 Gongti South Road, Chaoyang District, Beijing, 100020, China
| | - Xiaoli Diao
- Department of Pathology, Beijing Chaoyang Hospital Affiliated With Capital Medical University, 8 Gongti South Road, Chaoyang District, Beijing, 100020, China
| | - Xiaolong Liang
- Department of Pathology, Beijing Chaoyang Hospital Affiliated With Capital Medical University, 8 Gongti South Road, Chaoyang District, Beijing, 100020, China
| | - Jianxin Zhang
- Department of Obstetrics and Gynecology, Beijing Chaoyang Hospital Affiliated With Capital Medical University, 8 Gongti South Road, Chaoyang District, Beijing, 100020, China
| | - Qiuxi Wang
- Department of Obstetrics and Gynecology, Beijing Chaoyang Hospital Affiliated With Capital Medical University, 8 Gongti South Road, Chaoyang District, Beijing, 100020, China
| | - Yuxin Zhan
- Department of Obstetrics and Gynecology, Beijing Chaoyang Hospital Affiliated With Capital Medical University, 8 Gongti South Road, Chaoyang District, Beijing, 100020, China
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Wang Y, Mohnot J, Yin K, Dobrilovic N, Edwards N, Kawabori M, Zhan Y. Type a Aortic Dissection in Heart Transplant Recipients: Patient Characteristics and Outcomes from a National United States Database. J Heart Lung Transplant 2023. [DOI: 10.1016/j.healun.2023.02.651] [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: 04/05/2023] Open
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Liu H, Zhou Z, Liu Y, Tao X, Zhan Y, Zhang M. Prevalence and Associated Factors of Depression Among Frontline Nurses in Wuhan 6 Months After the Outbreak of COVID-19: A Cross-Sectional Study. Med Sci Monit Basic Res 2023; 29:e938633. [PMID: 36849512 PMCID: PMC9840364 DOI: 10.12659/msmbr.938633] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023] Open
Abstract
BACKGROUND Due to the COVID-19 pandemic, frontline nurses have experienced psychological problems. However, the depression of frontline nurses in Wuhan 6 months after the outbreak of COVID-19 has not been studied adequately. The purpose of this study was to investigate the depression of frontline nurses in Wuhan 6 months after the COVID-19 outbreak and to analyze possible risk and protective factors. MATERIAL AND METHODS Data were collected through Wenjuanxing from 612 frontline nurses in Wuhan national COVID-19-designated hospitals between July 27, 2020, and August 12, 2020. The levels of depression, family functioning, and psychological resilience were assessed among frontline nurses in Wuhan with a depression scale, family function scale, and 10-item psychological resilience scale, respectively. The factors associated with depressive symptoms were identified using the chi-square test and binary logistic regression analysis. RESULTS A total of 126 respondents were included in the study. The overall prevalence of depression was 25.2%. The need for mental health services was a potential risk factor for depressive symptoms, while family functioning and psychological resilience were potential protective factors. The COVID-19 pandemic poses a major challenge to the depressive symptoms of frontline nursing in Wuhan, highlighting the need for all frontline nurses in Wuhan to be screened for depression regularly for timely intervention. CONCLUSIONS To mitigate the impact of the pandemic on depression, psychological interventions for frontline nurses need to be implemented to preserve their mental health.
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Affiliation(s)
- Huan Liu
- Department of Hemodialysis, The First AffiliatedHospital of Wannan Medical College (Yijishan Hospital ofWannan Medical College), Wuhu, Anhui, PR China
| | - Zhiqing Zhou
- Department of Nursing, The First AffiliatedHospital of Wannan Medical College (Yijishan Hospital ofWannan Medical College), Wuhu, Anhui, PR China
| | - Yan Liu
- Department of Nursing, Wuhan Third Hospital, Wuhan, Hubei, PR China
| | - Xiubin Tao
- Department of Nursing, The First AffiliatedHospital of Wannan Medical College (Yijishan Hospital ofWannan Medical College), Wuhu, Anhui, PR China
| | - Yuxin Zhan
- Department of Nursing, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, PR China
| | - Ming Zhang
- School of Innovation and Entrepreneurship, Wannan Medical College. Wuhu, Anhui, PR China
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Zhan Y, Yu J, Zhang W, Wan Y, Chen Y, Wang Y, Li S. Cognition and practice on transitional care during the transfer from intensive care unit to a general ward among health care professionals: A qualitative study. J Nurs Manag 2022; 30:4569-4577. [PMID: 36281794 DOI: 10.1111/jonm.13878] [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: 03/28/2022] [Revised: 07/21/2022] [Accepted: 10/02/2022] [Indexed: 12/30/2022]
Abstract
AIM The aim of this study is to explore the cognition and practice on transitional care during the transfer from intensive care unit to a general ward among health care professionals in China. BACKGROUND Due to the significant differences in the medical and humanistic environment at home and abroad, the safety of patients during the transmission from intensive care unit to the general ward is often ignored when their conditions become stable. There are few qualitative studies on the cognition and practice on transitional care during the transfer from intensive care unit to the ward among health care professionals in China. METHODS With a qualitative research design, 20 medical and nursing staff in the neurosurgery intensive care unit and ward were interviewed from May 2021 to August 2021. NVivo 11.0 software was utilized for Colaizzi's (1978) method of data analysis. RESULTS Based on data analysis, perceptions of transitional care, the influencing factors for transitional care and the recommendations for improving transitional care were obtained. CONCLUSION To ensure the continuity of care and improve patient safety during the period from intensive care unit to a general ward in China, we should clarify the expectation for the content of intensive care unit transitional care services, establish the transitional nursing team, guide nursing work, standardize the handover mode and process from intensive care unit to the general ward, promote the communication and coordination of health care professionals and improve the transitional nursing security system from the perspective of institutional level. IMPLICATIONS FOR NURSING MANAGEMENT This study can be used as a guide to help health care professionals provide a reference for the comprehensive development of transitional care services and the formulation of targeted intervention measures during the transfer from intensive care unit to a general ward in China.
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Affiliation(s)
- Yuxin Zhan
- Department of Neurosurgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China.,School of Nursing, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Jiaohua Yu
- Department of Nursing, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Wenya Zhang
- School of Nursing, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yali Wan
- School of Nursing, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yi Chen
- School of Nursing, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yinyue Wang
- School of Nursing, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Suyun Li
- Department of Nursing, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
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Yu H, Zhang L, Cai Y, Hao Z, Luo Z, Peng T, Liu L, Wang N, Wang G, Deng Z, Zhan Y. Seroprevalence of antibodies to classical swine fever virus and porcine reproductive and respiratory syndrome virus in healthy pigs in Hunan Province, China. Pol J Vet Sci 2022; 25:375-381. [PMID: 36155561 DOI: 10.24425/pjvs.2022.142020] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Classical swine fever (CSF) and porcine reproductive and respiratory syndrome (PRRS) are responsible for major economic losses and represent a threat to the swine industry worldwide. Routine surveillance serology for CSF and PRRS viruses is critical to maintaining the health status of sow farms in Hunan Province, which is one of the top pig production provinces in China. The aim of our study was to investigate the serological statistics of CSF virus (CSFV) and PRRS virus (PRRSV) in Hunan Province. The cohort serum samples were collected from vaccinated and unvaccinated pigs. Our findings showed that the average rates of CSFV and PRRSV antibody seropositivity were 82.2% (95% CI: 80.1-84.3) and 84.8% (95% CI: 82.5-87.1), respectively, in the immunized group and that these rates were higher than those in the unvaccinated group (58.6% for CSFV and 47.8% for PRRSV). Additionally, the level of CSFV antibody in piglet serum declined gradually with age, whereas PRRSV-specific antibody level increased initially (1 to 2 weeks old) and then declined with age (2 to 4 weeks old). In summary, we investigated the difference in CSFV/PRRSV antibody levels among piglets at various weeks old (1 to 4 weeks) to further establish the duration of maternal immunity in piglets. In addition, routine monitoring of CSFV/PRRSV antibodies in immunized pigs was carried out to evaluate the efficacy of vaccination.
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Affiliation(s)
- H Yu
- Provincial Key Laboratory of Protein Engineering in Animal Vaccines, Research Center of Reverse Vaccinology (RCRV), and Laboratory of Functional Proteomics (LFP), College of Veterinary Medicine, Hunan Agricultural University, Changsha, Hunan 410128, China
| | - L Zhang
- Provincial Key Laboratory of Protein Engineering in Animal Vaccines, Research Center of Reverse Vaccinology (RCRV), and Laboratory of Functional Proteomics (LFP), College of Veterinary Medicine, Hunan Agricultural University, Changsha, Hunan 410128, China
| | - Y Cai
- Provincial Key Laboratory of Protein Engineering in Animal Vaccines, Research Center of Reverse Vaccinology (RCRV), and Laboratory of Functional Proteomics (LFP), College of Veterinary Medicine, Hunan Agricultural University, Changsha, Hunan 410128, China
| | - Z Hao
- Yongzhou Animal Husbandry and Aquatic Affairs Center, Yongzhou, Hunan 425000, China
| | - Z Luo
- Dingcheng Animal Husbandry and Aquatic Affairs Center, Changde, Hunan 415100, China
| | - T Peng
- Provincial Key Laboratory of Protein Engineering in Animal Vaccines, Research Center of Reverse Vaccinology (RCRV), and Laboratory of Functional Proteomics (LFP), College of Veterinary Medicine, Hunan Agricultural University, Changsha, Hunan 410128, China
| | - L Liu
- Provincial Key Laboratory of Protein Engineering in Animal Vaccines, Research Center of Reverse Vaccinology (RCRV), and Laboratory of Functional Proteomics (LFP), College of Veterinary Medicine, Hunan Agricultural University, Changsha, Hunan 410128, China
| | - N Wang
- Provincial Key Laboratory of Protein Engineering in Animal Vaccines, Research Center of Reverse Vaccinology (RCRV), and Laboratory of Functional Proteomics (LFP), College of Veterinary Medicine, Hunan Agricultural University, Changsha, Hunan 410128, China
| | - G Wang
- Provincial Key Laboratory of Protein Engineering in Animal Vaccines, Research Center of Reverse Vaccinology (RCRV), and Laboratory of Functional Proteomics (LFP), College of Veterinary Medicine, Hunan Agricultural University, Changsha, Hunan 410128, China
| | - Z Deng
- Provincial Key Laboratory of Protein Engineering in Animal Vaccines, Research Center of Reverse Vaccinology (RCRV), and Laboratory of Functional Proteomics (LFP), College of Veterinary Medicine, Hunan Agricultural University, Changsha, Hunan 410128, China
| | - Y Zhan
- Provincial Key Laboratory of Protein Engineering in Animal Vaccines, Research Center of Reverse Vaccinology (RCRV), and Laboratory of Functional Proteomics (LFP), College of Veterinary Medicine, Hunan Agricultural University, Changsha, Hunan 410128, China
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Hou F, Zhan Y, Feng S, Ye J, Wang X, Sun W, Zhang Y. Smart grating coupled whispering-gallery-mode microcavity on tip of multicore optical fiber with response enhancement. Opt Express 2022; 30:25277-25289. [PMID: 36237061 DOI: 10.1364/oe.457870] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/07/2022] [Accepted: 06/08/2022] [Indexed: 06/16/2023]
Abstract
The potential of whispering-gallery-modes (WGMs) microcavities in sensing applications has been being released continuously with improvements from various aspects. Introducing smart materials and structures into the WGMs microcavities based sensing systems are an effective approach to promote their applications in real world. Here, we propose a smart grating as the coupling setup to a WGMs microcavity of polystyrene microsphere to enhance the responses to chemical and thermal stimulations. The changes of the coupling distance due to the deformation of the smart grating induce additional increments to the intrinsic wavelength shifts of the WGMs of the microcavity, which is proved to be the mechanism of the response enhancements. We use two-photon lithography based "lab on fiber" technology to realize the device and the demonstration of the response enhancements. Our results may be of great significance to the design of the WGMs microcavity based chemical and temperature sensors.
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Zhan Y, Liu Y, Chen Y, Liu H, Zhang W, Yan R, Yu J, Li S. The prevalence and influencing factors for compassion fatigue among nurses in Fangcang shelter hospitals: A cross-sectional study. Int J Nurs Pract 2022; 28:e13054. [PMID: 35384160 DOI: 10.1111/ijn.13054] [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: 10/29/2020] [Revised: 02/19/2022] [Accepted: 03/12/2022] [Indexed: 11/30/2022]
Abstract
AIM We aim to investigate the prevalence and associated factors for compassion fatigue among nurses in Fangcang Shelter Hospitals in Wuhan. Studies have shown that compassion fatigue was more common among nurses than other health-care providers, and its predictors were also different. In recent years, most studies have investigated compassion fatigue in emergency and oncology nurses, whereas there is little information on compassion fatigue among nurses from the frontline of Fangcang Shelter Hospitals during the COVID-19 pandemic. METHODS A descriptive, cross-sectional design was used in this study. An online survey was conducted among nurses (n = 972) of five Fangcang Shelter Hospitals in Wuhan, Hubei province, China, from 6 March to 10 March 2020. A self-administered questionnaire including demographic information, work-related information, General Health Questionnaire, Perceived Stress Scale and Compassion Fatigue Scale was used. RESULTS The prevalence of compassion fatigue among nurses in Fangcang Shelter Hospitals was moderate, and most cases were mild. There was a significant relationship between compassion fatigue and work-related factors, mental health and perceived stress among nurses working in Fangcang Shelter Hospitals. CONCLUSIONS Various factors contribute to compassion fatigue, including lower job satisfaction and job adaptability, less praise from patients, more fear of infection and more perceived stress. A good working atmosphere, organizational support and psychological consultation are essential to alleviate nurses' compassion fatigue during the anti-epidemic period.
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Affiliation(s)
- Yuxin Zhan
- Department of Neurosurgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.,School of Nursing, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yunfang Liu
- Department of Thoracic Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yi Chen
- School of Nursing, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Huan Liu
- Department of Hemodialysis, The First Affiliated Hospital of Wannan Medical College, Wuhu, China
| | - Wenya Zhang
- School of Nursing, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Rong Yan
- Department of Orthopedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Jiaohua Yu
- Department of Nursing, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Suyun Li
- Department of Nursing, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
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HE X, Wu X, Zhan Y, Hong D, Li G. POS-626 CONSTRUCTION OF AN EARLY ALERT SYSTEM OF INTRADIALYTIC HYPOTENSION BASED ON ARTIFICIAL INTELLIGENCE. Kidney Int Rep 2022. [DOI: 10.1016/j.ekir.2022.01.659] [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: 10/19/2022] Open
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Zhan Y, Yu J, Chen Y, Liu Y, Wang Y, Wan Y, Li S. Family caregivers' experiences and needs of transitional care during the transfer from intensive care unit to a general ward: A qualitative study. J Nurs Manag 2021; 30:592-599. [PMID: 34799985 DOI: 10.1111/jonm.13518] [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: 08/19/2021] [Revised: 11/11/2021] [Accepted: 11/14/2021] [Indexed: 11/28/2022]
Abstract
AIM To explore the family caregivers' experiences and needs of transitional care during the transfer from an intensive care unit to a general ward in China. BACKGROUND The transfer of patients from the intensive care unit to the ward is a vulnerable time for patients and caregivers, exposing the risk of readmission and death. However, there are few qualitative studies on the family caregivers' views of transitional care for their loved ones in China. METHODS With a qualitative research design, 15 interviews were conducted with 15 family caregivers of hospitalized patients transferred from the neurosurgery ICU to the general ward. Colaizzi's (1978) method of data analysis was performed using the NVivo 11.0 software. RESULTS Based on data analysis, four themes were obtained: perception of transfer decision, the experience of transitional care, the obstacles to maintaining care efficiency and demand for transitional care. CONCLUSION In order to enhance the continuity of care and improve patient safety during the transfer from an ICU to a general ward in China, priorities should be given to the implementation of effective strategies and methods, including providing psychological and emotional support, encouraging active participation of caregivers, and various communication and collaboration procedures. IMPLICATIONS FOR NURSING MANAGEMENT The findings from this study can be used as a guide to better preparation and awareness among health care professionals to achieve the much-needed demands of family caregivers, as well as the increased quality of transitional care.
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Affiliation(s)
- Yuxin Zhan
- Department of Nursing, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.,School of Nursing, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Jiaohua Yu
- School of Nursing, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yi Chen
- Department of Nursing, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yufang Liu
- Department of Nursing, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yingyue Wang
- School of Nursing, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yali Wan
- School of Nursing, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Suyun Li
- Department of Nursing, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
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Quintanal-Villalonga A, Taniguchi H, Zhan Y, Hasan M, Chavan S, Uddin F, Allaj V, Manoj P, Shah N, Chan J, Chow A, Offin M, Bhanot U, Egger J, Qiu J, De Stanchina E, Chang J, Rekhtman N, Houck-Loomis B, Koche R, Yu H, Sen T, Rudin C. MA11.06 Multi-Omic Characterization of Lung Tumors Implicates AKT and MYC Signaling in Adenocarcinoma to Squamous Cell Transdifferentiation. J Thorac Oncol 2021. [DOI: 10.1016/j.jtho.2021.08.167] [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: 10/20/2022]
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14
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Quintanal-Villalonga A, Taniguchi H, Hao Y, Chow A, Zhan Y, Chavan S, Uddin F, Allaj V, Manoj P, Shah N, Chan J, Offin M, Egger J, Bhanot U, Qiu J, De Stanchina E, Sen T, Poirier J, Rudin C. MA16.03 CRISPR Screen Reveals XPO1 as a Therapeutic Target Strongly Sensitizing to First and Second Line Therapy in Small Cell Lung Cancer. J Thorac Oncol 2021. [DOI: 10.1016/j.jtho.2021.08.196] [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: 10/20/2022]
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15
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Zhan Y, Shen X, Chen M, Yang K, Xie H. Bioleaching of tellurium from mine tailings by indigenous Acidithiobacillus ferrooxidans. Lett Appl Microbiol 2021; 75:1076-1083. [PMID: 34586632 DOI: 10.1111/lam.13569] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2021] [Revised: 09/02/2021] [Accepted: 09/12/2021] [Indexed: 11/28/2022]
Abstract
Tellurium (Te) is a scarce and valuable metalloid, which can be found in some mine tailings. In this work, an indigenous Acidithiobacillus ferrooxidans strain was used to leach Te from mine tailings collected in the Shimian Te mine region, China. Under the optimized conditions of initial pH of 2·0, pulp density of 4% and temperature of 30°C, 47·77% of Te can be dissolved after 24 days of bioleaching. The leaching of Te by different systems such as bioleaching, Ferric ion (Fe(III)) leaching and acid leaching was compared. The results showed that the leaching behaviour of Te is similar to that of sulphur in sulphide minerals, that is, Fe(III) first oxidizes telluride (Te(-II)) in minerals to elemental Te, and then elemental Te can be oxidized by bacteria to Te(IV) and Te(VI). Besides, it was also showed by scanning electron microscope observation and Fourier transform infrared spectroscopy analysis of the ore sample before and after bioleaching that some bedded structure covered on the surface of the ore after bioleaching acting as a reaction compartment, and the changing of active groups indicated a possible attachment between bacteria and ore. There is an indirect mechanism involved in bioleaching of Te.
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Affiliation(s)
- Y Zhan
- College of Ecology and Environment, Chengdu University of Technology, Chengdu, P.R. China
| | - X Shen
- College of Ecology and Environment, Chengdu University of Technology, Chengdu, P.R. China
| | - M Chen
- College of Ecology and Environment, Chengdu University of Technology, Chengdu, P.R. China
| | - K Yang
- College of Ecology and Environment, Chengdu University of Technology, Chengdu, P.R. China
| | - H Xie
- College of Ecology and Environment, Chengdu University of Technology, Chengdu, P.R. China
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Liu H, Fan J, Tao X, Zhan Y, Huang L, Wang G. Suboptimal health status of nurses in Wuhan, China during the COVID-19 outbreak. Rev Assoc Med Bras (1992) 2021; 67:1010-1014. [DOI: 10.1590/1806-9282.20210449] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2021] [Accepted: 05/30/2021] [Indexed: 11/21/2022] Open
Affiliation(s)
| | - Jiali Fan
- Wannan Medical College, China; Nanjing Normal University, China
| | | | - Yuxin Zhan
- Huazhong University of Science and Technology, China
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Shen Y, Zhan Y, Zheng H, Liu H, Wan Y, Zhou W. Anxiety and its association with perceived stress and insomnia among nurses fighting against COVID-19 in Wuhan: A cross-sectional survey. J Clin Nurs 2021; 30:2654-2664. [PMID: 33497526 PMCID: PMC8013746 DOI: 10.1111/jocn.15678] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [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: 04/07/2020] [Revised: 11/27/2020] [Accepted: 01/12/2021] [Indexed: 12/15/2022]
Abstract
Aims and Objectives To investigate the present status of anxiety among nurses fighting the spread of COVID‐19 and its association with perceived stress and insomnia. Background With the outbreak of COVID‐19, nurses have been caring for infected patients for a considerable length of time in Wuhan, China. Previous COVID‐19 studies generally focused on patients' medical treatment, but few considered healthcare workers' psychological needs while working with a pandemic involving an unfamiliar infectious disease. Numerous nurses have experienced mental health problems, such as anxiety. Design The STROBE guidelines for a cross‐sectional questionnaire were implemented. Methods An online survey of 643 frontline nurses working with COVID‐19‐infected patients was conducted from 3–10 March 2020. Sociodemographic data were collected, and the Generalized Anxiety Disorder Scale, the Chinese Perceived Stress Scale and the Athens Insomnia Scale were administered. Results One‐third (33.4%) of participants reported anxiety, which was associated with perceived stress and insomnia among Chinese frontline nurses in Wuhan during the COVID‐19 pandemic. Significant associations were found between anxiety, perceived stress, insomnia, working four‐night shifts per week, experience working during more than two epidemics and fear of COVID‐19. Conclusions This study found that a substantial proportion of frontline nurses caring for COVID‐19‐infected patients experienced anxiety. We recommend that nurse managers focus on working conditions and cultivate safe and satisfactory work environments. Meanwhile, frontline nurses should foster awareness of mental health and rely on online resources for psychological training to alleviate anxiety. Relevance to clinical practice The findings of this study could facilitate better understanding of anxiety among frontline nurses; more importantly, healthcare authorities and nursing managers need to pay more attention to ensuring intervention training to reduce anxiety for frontline nurses worldwide.
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Affiliation(s)
- Yue Shen
- Department of Oncology, Renmin Hospital of Wuhan University, Wuhan, China
| | - Yuxin Zhan
- Department of Nursing, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Hong Zheng
- Department of Urology, Renmin Hospital of Wuhan University, Wuhan, China
| | - Huan Liu
- Department of Nursing, Yijishan Hospital Affiliated to Wannan Medical College, Wuhu, China
| | - Yonghui Wan
- Department of Oncology, Renmin Hospital of Wuhan University, Wuhan, China
| | - Wei Zhou
- Department of Oncology, Renmin Hospital of Wuhan University, Wuhan, China
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Osman EK, Wang T, Zhan Y, Juneau CR, Morin SJ, Seli E, Scott RT, Franasiak JM. Varying levels of serum estradiol do not alter the timing of the early endometrial secretory transformation. Hum Reprod 2021; 35:1637-1647. [PMID: 32613240 DOI: 10.1093/humrep/deaa135] [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] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2020] [Revised: 05/06/2020] [Indexed: 11/14/2022] Open
Abstract
STUDY QUESTION Do supraphysiologic estradiol (E2) levels in the ranges attained during normal and high response superovulation cycles modify the onset of endometrial secretory transformation? SUMMARY ANSWER Highly supraphysiologic levels of E2 do not alter the ability of physiologic levels of progesterone (P4) to induce secretory transformation. WHAT IS KNOWN ALREADY Previous studies have demonstrated that premature P4 elevations during IVF cycles are associated with a decrement in clinical pregnancy rates after fresh embryo transfer due to shifts in the window of implantation (WOI). However, alterations in the onset of secretory transformation may not apply uniformly to all patients. High responders with supraphysiologic E2 levels accompanied by similar subtle increases in P4 have not been shown to have decreased sustained implantation rates. This prospective investigation in which whole-genome transcriptomic and methylomic analysis of the endometrium is performed for individual patients under a range of E2 concentrations brings clarity to a long-debated issue. STUDY DESIGN, SIZE, DURATION A randomized, prospective and paired trial was conducted in which 10 participants were enrolled and randomized to the order in which they completed three distinct uterine stimulation cycles, each at a specific E2 concentration: physiologic (∼180 pg/ml), moderately supraphysiologic (600-800 pg/ml) or supraphysiologic (2000 pg/ml). Target E2 ranges were selected to mimic those seen in natural, controlled ovarian stimulation and IVF cycles. E2 valerate was administered in order to maintain stable E2 levels for 12 days followed by intramuscular P4 in oil 10 mg/day for two doses, after which an endometrial biopsy was performed. A total of 30 endometrial biopsies were included in a whole-genome transcriptomic and methylomic analysis. PARTICIPANTS/MATERIALS, SETTING, METHODS Healthy volunteers without a history of infertility were included in this study at a single large infertility center. DNA was isolated from the endometrial biopsy specimens and bisulfite sequencing was performed to construct a methylation array. Differential methylation analysis was conducted based on differences in M-values of individuals across treatment groups for each probe as well as carrying out t-tests. RNA was isolated for RNA-Seq analysis and gene expression values were compared using DESeq2. All analyses were performed in a pairwise fashion to compare among the three stimulation cycles within individuals and secondarily to compare all participants in each of the cycles. MAIN RESULTS AND THE ROLE OF CHANCE The mean peak E2 and P4 levels were 275 pg/ml and 4.17 ng/ml in the physiologic group, 910 pg/ml and 2.69 ng/ml in the moderate group was, and 2043 pg/ml and 2.64 ng/ml in the supraphysiologic group, respectively. Principal component analysis of 834 913 CpG sites was performed on M-values of individuals within the low, moderate and supraphysiologic conditions in a paired approach. There were no differences in genome-wide methylation within participants across E2 groups. A paired analysis revealed that gene expression profiles did not differ within the same individual at each of the three E2 levels. No significant alterations in gene expression as related to endometrial physiology were identified between the low, moderate and supraphysiologic groups in an inter-participant analysis. LIMITATIONS, REASONS FOR CAUTION Although each participant completed a physiologic cycle in which E2 levels were maintained in a range that would simulate a natural cycle, our findings are limited by lack of an unmedicated control to assess if there was a potential effect from E2V. Additionally, our results were obtained in fertile individuals, who may have a different endometrial response compared to an infertile population. Despite the whole genomic endometrial assessment and rigorous, paired study design, the sample size was limited. WIDER IMPLICATIONS OF THE FINDINGS Given that the endometrial response to P4 is unaffected by E2 levels in the supraphysiologic range, diminutions in implantation seen in stimulated cycles may result from embryonic-endometrial dyssynchrony following early P4 elevations or slowly blastulating embryos, which occur independently of the magnitude of the E2 rise. STUDY FUNDING/COMPETING INTEREST(S) This study was funded by the Foundation for Embryonic Competence, Basking Ridge, NJ, USA. Dr E.S. reports consultancy work for The Foundation for Embryonic Competence, Basking Ridge, NJ, USA. The other authors declare no conflict of interests related to this topic. TRIAL REGISTRATION NUMBER NCT02458404.
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Affiliation(s)
- E K Osman
- IVI-RMA New Jersey, Basking Ridge, NJ, USA
| | - T Wang
- The Foundation for Embryonic Competence, Basking Ridge, NJ, USA
| | - Y Zhan
- The Foundation for Embryonic Competence, Basking Ridge, NJ, USA
| | | | - S J Morin
- IVI-RMA Northern California, San Francisco, CA, USA
| | - E Seli
- IVI-RMA New Jersey, Basking Ridge, NJ, USA.,Yale University School of Medicine, New Haven, CT, USA
| | - R T Scott
- IVI-RMA New Jersey, Basking Ridge, NJ, USA
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Jiang M, Zhou YR, Zhan Y, Zhang HQ, Zhang Q, Guo Y, Zhang ZL. [Application of transcriptome sequencing and fusion genes analysis in the diagnosis of myeloid leukemia with normal karyotype]. Zhonghua Yi Xue Za Zhi 2021; 101:939-944. [PMID: 33789375 DOI: 10.3760/cma.j.cn112137-20201103-03005] [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] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To analyze the possible fusion genes with high-throughput transcriptome sequencing in myeloid leukemia patients with normal karyotype. Methods: From May 2017 to January 2019, three cases of myeloid leukemia patients with normal karyotype and negative for common fusion genes from the First Affiliated Hospital of Nanchang University were selected as the research objects. The transcriptome sequencing of bone marrow mononuclear cells was performed by high-throughput gene sequencing technology. Defuse software was used to analyze the gene fusion sequence in the transcriptome data, reverse-transcription polymerase chain reaction (RT-PCR) and Sanger sequencing were used to verify the fusion gene with clear pathological significance. Results: All three patients were diagnosed with myeloid leukemia by clinical manifestations, bone marrow cell morphology, immunology, and histochemical staining. Cytogenetic tests showed normal chromosome karyotypes. Fluorescence in situ hybridization and RT-PCR were used to detect BCR-ABL1, PML-RARA, and other common fusion genes. The results were all negative. Transcriptome sequencing and fusion transcripts analysis revealed that these three patients carried rare fusion genes with clear pathological significance, which included BCR-FGFR1, CPSF6-RARG, and NUP98-RARG, respectively. Conclusion: Transcriptome sequencing can accurately analyze rare but pathologically significant fusion genes that may exist in myeloid leukemia patients with normal karyotypes.
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Affiliation(s)
- M Jiang
- Department of Clinical Laboratory, the First Affiliated Hospital of Nanchang University, Nanchang 330006, China
| | - Y R Zhou
- Department of Transfusion, the First Affiliated Hospital of Nanchang University, Nanchang 330006, China
| | - Y Zhan
- Department of Pathology, the First Affiliated Hospital of Nanchang University, Nanchang 330006, China
| | - H Q Zhang
- Department of Hematology, the First Affiliated Hospital of Nanchang University, Nanchang 330006, China
| | - Q Zhang
- Department of Transfusion, the First Affiliated Hospital of Nanchang University, Nanchang 330006, China
| | - Y Guo
- Department of Clinical Laboratory, the First Affiliated Hospital of Nanchang University, Nanchang 330006, China
| | - Z L Zhang
- Department of Transfusion, the First Affiliated Hospital of Nanchang University, Nanchang 330006, China
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Nordan T, Critsinelis A, Hironaka C, Zhan Y, Chen F, Couper G, Kawabori M. Analysis of Total Survival Benefit in Candidates Listed for Heart Transplantation with Intraaortic Balloon Pump - Direct Bridge to Transplant versus Transplant Following Transition to Durable Left Ventricular Assist Device. J Heart Lung Transplant 2021. [DOI: 10.1016/j.healun.2021.01.732] [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: 10/21/2022] Open
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21
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Critsinelis A, Nordan T, Hironaka C, Zhan Y, Chen F, Couper G, Kawabori M. Geographic Distribution in Use of Extended Criteria Donors. J Heart Lung Transplant 2021. [DOI: 10.1016/j.healun.2021.01.408] [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: 11/30/2022] Open
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22
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Tutunjian A, Kawabori M, Nordan T, Zhan Y, Chen F, Warner K, Rastegar H, Couper G. Effect of Donor Heart Preservation Temperature Monitoring Technology on Primary Graft Dysfunction and Outcomes in Heart Transplantation. J Heart Lung Transplant 2021. [DOI: 10.1016/j.healun.2021.01.1306] [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: 10/21/2022] Open
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Tutunjian A, Ortoleva J, Hironaka C, Nordan T, Zhan Y, Chen F, Couper G, Kawabori M. Using Aortic Arch Short Axis Views during Transesophageal Echocardiographic Examination Facilitates Right Ventricular Assist Device Imaging. J Heart Lung Transplant 2021. [DOI: 10.1016/j.healun.2021.01.2097] [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: 11/16/2022] Open
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24
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Critsinelis A, Nordan T, Hironaka C, Zhan Y, Chen F, Couper G, Kawabori M. Trends in Outcomes of Extended Criteria Donors for Heart Transplants. J Heart Lung Transplant 2021. [DOI: 10.1016/j.healun.2021.01.358] [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: 11/27/2022] Open
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25
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Hironaka C, Nordan T, Kawabori M, Zhan Y, Chen F, Couper G. Immediate ECMO Initiation Leads to Graft Recovery in Delayed Graft Failure after Heart Transplant. J Heart Lung Transplant 2021. [DOI: 10.1016/j.healun.2021.01.1313] [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: 11/17/2022] Open
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26
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Mahrokhian S, Liang C, Nordan T, Zhan Y, Chen F, Couper G, Kawabori M. The Case Number Changes in Adult Heart Transplantation and Waitlist Addition Due to COVID-19. J Heart Lung Transplant 2021. [PMCID: PMC7979414 DOI: 10.1016/j.healun.2021.01.1788] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Purpose To understand the long term effect of COVID-19 on 1) heart transplant waitlist trends and on 2) heart transplant case numbers in the United States. Methods The number of new adult heart transplant waitlist additions and transplant procedures were obtained from the UNOS database. Our time frame includes the 52 weeks between September 3, 2019 and September 4, 2020. Temporal changes in waitlist additions and heart transplants were analyzed using interrupted time series analyses with two transition periods. The first transition from the pre-COVID to the post-COVID era was determined as the week of March 11, 2020, when the first state imposed stay-at-home orders. The second transition period was determined as the first state re-opening during the week of April 22, 2020. Results Weekly waitlist additions were decreasing at -0.19 additions per week (95% CI: -0.35 to -0.03, p=0.018) prior to the COVID-19 era, defined as before the week of March 11, 2020, with a significant decrease in weekly waitlist additions of -2.09 (95% CI: -2.44 to -1.73, p< 0.001) during the post-COVID-19 era and prior to the first state re-opening the week of April 22, 2020 (Figure A). Weekly waitlist additions increased at 2.16 additions per week (95% CI: 1.81 to 2.51, p<0.001) following the first state announcing re-opening the week of April 22, 2020. Weekly transplants were relatively unstable, although decreasing at -0.003 transplants per week (95% CI: -0.279 to 0.273, p=0.984) in the pre-COVID era, and were trending downward at -0.18 transplants per week (95% CI: -0.3702 to 0.0036, p=0.054) thereafter (Figure B). The number of transplants rebounded and increased significantly at 0.49 transplants per week (95% CI: 0.26 to 0.72, p<0.001) after April 22, 2020. Conclusion The number of heart transplants and waitlist additions decreased significantly due to COVID-19 and rebounded following the first US state reopening the week of April 22, 2020. Waitlist additions continue to rise past levels observed during the pre-COVID era.
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Zhan Y, Yang MR, Zhang S, Pan H, Wang WD, Yan L. Phylogenetic diversity contributes more to sediment magnetism than abundance during incubation of iron-reducing sediment from a non-active volcanic lake in Northeast China. J Appl Microbiol 2021; 131:1813-1829. [PMID: 33772951 DOI: 10.1111/jam.15086] [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: 11/06/2020] [Revised: 01/18/2021] [Accepted: 03/22/2021] [Indexed: 12/01/2022]
Abstract
AIM This study aimed to analyse bacterial community and biomineralization products from Wudalianchi non-active volcanic field and the relationship between magnetization and bacterial community. METHODS AND RESULTS Eighteen sediment samples obtained from Wenbo Lake, high-throughput sequencing and quantitative PCR (qPCR) were separately employed to investigate the bacterial community composition dynamics and abundance variation of the sediment sample with the highest iron-reducing capacity during incubation. The mineralization products were characterized by transmission electron microscopy, scanning electron microscopy, X-ray diffraction (XRD), Raman spectroscopy, vibrating sample magnetometer (VSM) and variable-temperature magnetism analyses. The results showed that the highest iron reduction rate was 98·06%. Seven phyla were identified as dominant bacterial phyla during the incubation process. Iron-reducing bacteria (FeRB) including Geobacter, Desulfosporosinus and Clostridium were involved in the iron mineralization process. The 16S rDNA copy numbers of sediment decreased quickly and then stayed steady during the incubation. Bacteria with rod-shaped and spheroid species were involved in extracellular iron reduction to produce magnetic particles with massive aggregation and columnar structures on the mineral surface morphologies. The materials produced by the microbial community over the incubation period were sequentially identified as siderite, magnetite and maghemite. The magnetism of the mineral samples gradually increased from 0·31748 to 33·58423 emu g-1 with increased incubation time. The final products showed relatively stable magnetism under 0-400 K. Meanwhile, the saturation magnetization (MS ) of the mineralized substance was tightly associated with bacterial diversity (P < 0·05). CONCLUSIONS Bacterial community varied during incubation of iron-reducing sediment of volcanic lake. Various iron mineral crystals were in turn formed extracellularly by FeRB. The magnetism of mineralized products was tightly associated with bacterial community. SIGNIFICANCE AND IMPACT OF THE STUDY These results not only help us to better understand the iron mineralization of FeRB in the volcanic lake sediments but also provide basic information for the future application of FeRB in environmental bioremediation.
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Affiliation(s)
- Y Zhan
- Heilongjiang Provincial Key Laboratory of Environmental Microbiology and Recycling of Argo-Waste in Cold Region, College of Life Science and Biotechnology, Heilongjiang Bayi Agricultural University, Daqing, PR China.,Shaanxi Key Laboratory of Agricultural and Environmental Microbiology, College of Life Sciences, Northwest A&F University, Xianyang, PR China
| | - M R Yang
- Heilongjiang Provincial Key Laboratory of Environmental Microbiology and Recycling of Argo-Waste in Cold Region, College of Life Science and Biotechnology, Heilongjiang Bayi Agricultural University, Daqing, PR China
| | - S Zhang
- Heilongjiang Provincial Key Laboratory of Environmental Microbiology and Recycling of Argo-Waste in Cold Region, College of Life Science and Biotechnology, Heilongjiang Bayi Agricultural University, Daqing, PR China
| | - H Pan
- Institute of Volcano and Spring, Heilongjiang Academy of Science, Wudalianchi, PR China
| | - W D Wang
- Heilongjiang Provincial Key Laboratory of Environmental Microbiology and Recycling of Argo-Waste in Cold Region, College of Life Science and Biotechnology, Heilongjiang Bayi Agricultural University, Daqing, PR China
| | - L Yan
- Heilongjiang Provincial Key Laboratory of Environmental Microbiology and Recycling of Argo-Waste in Cold Region, College of Life Science and Biotechnology, Heilongjiang Bayi Agricultural University, Daqing, PR China
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Lu Z, Er Y, Zhan Y, Deng X, Jin Y, Ye P, Duan L. Association of Frailty Status with Risk of Fall among Middle-Aged and Older Adults in China: A Nationally Representative Cohort Study. J Nutr Health Aging 2021; 25:985-992. [PMID: 34545918 DOI: 10.1007/s12603-021-1655-x] [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] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
OBJECTIVES To investigate the association between frailty status and risk of fall among middle-aged and older Chinese people. DESIGN A nationally representative prospective cohort study. SETTING AND PARTICIPANTS The study included 13,877 community-dwelling participants aged 45 years and above from the China Health and Retirement Longitudinal Study. METHODS Frailty status was identified by the frailty index of health deficit accumulation. 34 variables at baseline were selected to calculate the frailty index. We excluded participants with incomplete information in construction of the frailty index at baseline. Falls were measured based on the respondents' self-report. We used a logistic regression model to estimate the associations between the frailty status and risk of fall, and subgroup analyses and sensitivity analyses were further conducted. RESULTS Of 13,877 participants, 2310 (16.6%) had falls during the observation period. 9027 (65.0%) participants were classified as robust, 4019 (29.0%) participants were classified as pre-frail, and 831 (6.0%) participants were classified as frail. Our results indicated per 0.01 increment in the frailty index was significantly associated with an increased risk of fall among middle-aged and older participants (OR: 1.52, 95%CI: 1.45-1.60). Such association was stronger when frailty was presented as a categorical variable, with an OR of 1.75 (95%CI: 1.59-1.93) for pre-frail and 3.04 (95%CI: 2.60-3.56) for frail. The area under the curve of the logistic model was 0.612 (95%CI: 0.600-0.625). Each 0.01 increment of the frailty index was association with a higher risk of fall among middle-aged (45-59years) participants (OR: 1.44, 95%CI: 1.29-1.60) than among older (≥60 years) participants (OR: 1.28, 95%CI: 1.16-1.41) at baseline (p=0.015 for interaction). CONCLUSION Frailty was significantly associated with an increased risk of fall among community-dwelling middle-aged and older people in China. It is necessary to screen and recognize frailty status to prevent falls among middle-aged and older adults.
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Affiliation(s)
- Z Lu
- Leilei Duan and Pengpeng Ye National Center for Chronic and Noncommunicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China, E-mail: duanleilei@ncncd,chinacdc.cn, yepengpeng@ncncd,chinacdc.cn
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Zhang JF, Zhang HY, Zhang SP, Tian T, Du XB, Zhu YL, Wu DK, Gao Y, Ma J, Zhan Y, Li Y, Zhang QJ, Tian WJ, Yu XJ, Zhao YS, Jiao GY, Sun DJ. [COVID-19 epidemic and its characteristics in Heilongjiang province]. Zhonghua Liu Xing Bing Xue Za Zhi 2020; 41:2005-2009. [PMID: 33378811 DOI: 10.3760/cma.j.cn112338-20200521-00752] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Objective: To describe the COVID-19 epidemic and its characteristics in Heilongjiang province, and provide evidence for the further prevention and control of COVID-19 in the province. Methods: The information of COVID-19 cases and clusters were collected from national notifiable disease report system and management information system for reporting public health emergencies of China CDC. The Software's of Excel 2010 and SPSS 23.0 were applied for data cleaning and statistical analysis on the population, time and area distributions of COVID-19 cases. Results: On January 22, 2020, the first confirmed case of COVID-19 was reported in Heilongjiang. By March 11, 2020, a total of 482 cases domestic case of COVID-19, The incidence rate was 1.28/100 000, the mortality rate was 2.70% (13/482) in 13 municipalities in Heilongjiang. There were 81 clusters of COVID-19, The number of confirmed cases accounted for 79.25% (382/482) of the total confirmed cases and 12 cases of deaths. The family clusters accounted for 86.42% (70/81). Compared with the sporadic cases, the mortality rate, proportion of elderly cases aged 60 or above and severe or critical cases of clinical classification were all higher in the clusters especially the family clusters, but the differences were not significant (P>0.05). There were 34 clusters involving more than 5 confirmed cases accounted for 41.98% (34/81) of the total clusters, the involved cases accounted for 68.31% (261/382) of the total cases of clusters. There were significant differences in age distribution of the cases among the case clusters with different case numbers. In the clusters involving 6-9 cases, the proportion of cases aged 65 years or above was more (26.53%, 39/147). Conclusions: The incidence rate of COVID-19 was relatively high and the early epidemic was serious in Heilongjiang, The number of cases was large in clusters especially family clusters.
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Affiliation(s)
- J F Zhang
- Heilongjiang Provincial Center for Disease Control and Prevention, Harbin 150030, China
| | - H Y Zhang
- Public Health Emergency Response Office, Heilongjiang Provincial Center for Disease Control and Prevention, Harbin 150030, China
| | - S P Zhang
- Institute of Aging Health, Heilongjiang Provincial Center for Disease Control and Prevention, Harbin 150030, China
| | - T Tian
- Department of Epidemiology and Health Statistics, School of Public Health, Harbin Medical University, Harbin 150081, China
| | - X B Du
- Institute of Disease Surveillance Information, Heilongjiang Provincial Center for Disease Control and Prevention, Harbin 150030, China
| | - Y L Zhu
- Institute of Infectious Disease Prevention and Control, Heilongjiang Provincial Center for Disease Control and Prevention, Harbin 150030, China
| | - D K Wu
- Public Health Emergency Response Office, Heilongjiang Provincial Center for Disease Control and Prevention, Harbin 150030, China
| | - Y Gao
- Public Health Emergency Response Office, Heilongjiang Provincial Center for Disease Control and Prevention, Harbin 150030, China
| | - J Ma
- Institute of STD/AIDS Prevention and Control, Heilongjiang Provincial Center for Disease Control and Prevention, Harbin 150030, China
| | - Y Zhan
- Institute of Disease Surveillance Information, Heilongjiang Provincial Center for Disease Control and Prevention, Harbin 150030, China
| | - Y Li
- Department of Nutrition and Food Health, School of Public Health, Harbin Medical University, Harbin 150081, China
| | - Q J Zhang
- Department of Epidemiology and Health Statistics, School of Public Health, Harbin Medical University, Harbin 150081, China
| | - W J Tian
- Department of Epidemiology and Health Statistics, School of Public Health, Harbin Medical University, Harbin 150081, China
| | - X J Yu
- Institute of Infectious Disease Prevention and Control, Heilongjiang Provincial Center for Disease Control and Prevention, Harbin 150030, China
| | - Y S Zhao
- Department of Epidemiology and Health Statistics, School of Public Health, Harbin Medical University, Harbin 150081, China
| | - G Y Jiao
- Heilongjiang Provincial Center for Disease Control and Prevention, Harbin 150030, China
| | - D J Sun
- Centre for Endemic Disease Control, Harbin Medical University, Harbin 150081, China
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Abstract
Management of posterior tibial plateau fractures has gained much interest over the past few years. Fracture morphology, trauma mechanism, and soft-tissue injury have been identified as the key factors determining the treatment strategy and outcome. We provide a rationale for the operative management of posterior tibial plateau fractures by discussing the interplay between fracture morphology, trauma mechanism, and soft-tissue injury. The trauma mechanism has proven to be an important tool, not only to understand fracture morphology, but also to assess concomitant soft-tissue (i.e. ligamentous) injury. Subsequently, soft-tissue injury might play a role in future classification and diagnostic work-up of tibial plateau fractures, particularly in fractures with posterior involvement. Plate osteosynthesis using a posterior approach is safe and should be considered routinely in coronal fractures of the posterior tibial plateau, as illustrated.
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Affiliation(s)
- J D Van den Berg
- University Hospitals Leuven, Department of Trauma Surgery, B-3000 Leuven, Belgium
| | - L Quintens
- University Hospitals Leuven, Department of Trauma Surgery, B-3000 Leuven, Belgium
| | - Y Zhan
- Department of Orthopaedic Surgery, Shanghai Jiaotong University, affiliated Shanghai 6th People's Hospital, Shanghai, China
| | - H Hoekstra
- University Hospitals Leuven, Department of Trauma Surgery, B-3000 Leuven, Belgium; KU Leuven - University of Leuven, Department of Development and Regeneration, B-3000 Leuven, Belgium.
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Huang L, Lei W, Liu H, Hang R, Tao X, Zhan Y. Nurses' Sleep Quality of "Fangcang" Hospital in China during the COVID-19 Pandemic. Int J Ment Health Addict 2020; 20:789-799. [PMID: 33132787 PMCID: PMC7587162 DOI: 10.1007/s11469-020-00404-y] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 09/19/2020] [Indexed: 12/22/2022] Open
Affiliation(s)
- Long Huang
- School of Psychology, Jiangxi Normal University, Nanchang, People’s Republic of China
- School of Humanities and Management, Wannan Medical College, Wuhu, People’s Republic of China
| | - Wansheng Lei
- School of Psychology, Jiangxi Normal University, Nanchang, People’s Republic of China
| | - Huan Liu
- Department of Nursing, The First Affiliated Hospital of Wannan Medical College, Wuhu, People’s Republic of China
| | - Ronghua Hang
- School of Humanities and Management, Wannan Medical College, Wuhu, People’s Republic of China
| | - Xiubin Tao
- Department of Nursing, The First Affiliated Hospital of Wannan Medical College, Wuhu, People’s Republic of China
| | - Yuxin Zhan
- Department of Nursing, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, People’s Republic of China
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Zheng XZ, Ma JH, Chen TB, Xu F, Zou ZY, Zhang LH, Jin YL, Zhan Y. [Application of molecular analysis in differential diagnosis of ovarian adult granulosa cell tumors]. Zhonghua Bing Li Xue Za Zhi 2020; 49:794-799. [PMID: 32746545 DOI: 10.3760/cma.j.cn112151-20200313-00198] [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] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the application value of molecular detection in the differential diagnosis of ovarian adult granulosa cell tumors (AGCT) by analyzing FOXL2, AKT1 and DICER1 mutations in these tumors. Methods: A total of 48 cases of ovarian sex cord-stromal tumor (SCST) were selected from July 2012 to June 2019 in Beijing Obstetrics and Gynecology Hospital, including 21 adult granulosa cell tumors (AGCT), 15 fibromas/fibrothecomas, 8 Sertoli-Leydig cell tumors (SLCT) and 4 other types of ovarian SCST. Genomic DNA was extracted from the formalin-fixed paraffin-embedded tissue sections. Polymerase chain reaction amplification for FOXL2, AKT1 and DICER1 genes was performed, followed by sequencing using capillary electrophoresis. Fisher exact test was used to compare the prevalence difference of FOXL2, AKT1 and DICER1 mutations among the groups. P<0.05 was considered significant. Results: Eighteen of the 21 (85.7%) AGCT harbored FOXL2 mutation. Compared with other SCST (13.0%, 3 of 23; including fibromas/fibrothecomas and SLCT), FOXL2 mutation was significantly higher in AGCT (P<0.001). In addition, FOXL2 mutation was also detected in one fibrothecoma, two SLCT and two gynandroblastomas. DICER1 mutation was identified in four of eight SLCT, and these cases were moderately to poorly differentiated. FOXL2 mutation was found in one SLCT with DICER1 mutation. There was no DICER1 mutation in other ovarian SCST. No AKT1 mutation was detected in all the patients. Conclusions: FOXL2 mutation is a highly specific biomarker for adult AGCT and may be helpful to resolve problematic cases. Diagnosis should also be taken into consideration of the clinical and histological features as FOXL2 mutation is also found in other SCST. The detection of DICER1 mutation is helpful for the differential diagnosis of ovarian SLCT. Synchronous DICER1 and FOXL2 mutation in the SLCT has been observed, and its significance needs to be further studied.
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Affiliation(s)
- X Z Zheng
- Department of Pathology, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Beijing 100006, China
| | - J H Ma
- Department of Basic Medical Sciences, Health School, Capital Medical University, Beijing 100070, China
| | - T B Chen
- Department of Pathology, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Beijing 100006, China
| | - F Xu
- Department of Pathology, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Beijing 100006, China
| | - Z Y Zou
- Department of Pathology, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Beijing 100006, China
| | - L H Zhang
- Department of Pathology, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Beijing 100006, China
| | - Y L Jin
- Department of Pathology, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Beijing 100006, China
| | - Y Zhan
- Department of Pathology, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Beijing 100006, China
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Zhan Y, Liu Y, Liu H, Li M, Shen Y, Gui L, Zhang J, Luo Z, Tao X, Yu J. Factors associated with insomnia among Chinese front-line nurses fighting against COVID-19 in Wuhan: A cross-sectional survey. J Nurs Manag 2020; 28:1525-1535. [PMID: 32657449 PMCID: PMC7405094 DOI: 10.1111/jonm.13094] [Citation(s) in RCA: 72] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2020] [Revised: 06/26/2020] [Accepted: 07/06/2020] [Indexed: 01/01/2023]
Abstract
Aim To investigate the prevalence of insomnia among front‐line nurses fighting against COVID‐19 in Wuhan, China, and analyse its influencing factors. Background Insomnia is an important factor that can affect the health and work quality of nurses. However, there is a lack of big‐sample studies exploring factors that affect the insomnia of nurses fighting against COVID‐19. Method This cross‐sectional study using the Ascension Insomnia Scale, Fatigue Scale‐14 and Perceived Stress Scale took place in March 2020. Participants were 1,794 front‐line nurses from four tertiary‐level general hospitals. Results The prevalence of insomnia among participants was 52.8%. Insomnia was predicted by gender, working experience, chronic diseases, midday nap duration, direct participation in the rescue of patients with COVID‐19, frequency of night shifts, professional psychological assistance during the pandemic, negative experiences (such as family, friends or colleagues being seriously ill or dying due to COVID‐19), the degree of fear of COVID‐19, fatigue and perceived stress. Conclusion The level of insomnia among participants was higher than the normal level. Interventions based on influencing factors should be implemented to ensure nurses’ sleep quality. Implications for Nursing Management An in‐depth understanding of the influencing factors of insomnia among front‐line nurses can help nurse managers develop solutions to improve front‐line nurses’ sleep quality, which will enhance the physical and mental conditions of nurses and promote the quality of care.
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Affiliation(s)
- Yuxin Zhan
- Department of Nursing, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yunfang Liu
- Department of Nursing, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Huan Liu
- Department of Nursing, Yijishan Hospital Affiliated to Wannan Medical College, Wuhu, China
| | - Mei Li
- Department of Intensive Care Unit, The Central Hospital of Wuhan Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yue Shen
- Department of Oncology, Renmin Hospital of Wuhan University, Wuhan, China
| | - Lingli Gui
- Nursing Department of Radiation and Medical Oncology, Zhongnan Hospital, Wuhan University, Wuhan, China
| | - Jun Zhang
- Department of Pain, Affiliated Hospital of Jianghan University, Wuhan, China
| | - Zhihua Luo
- Neurosurgery Department, Wuhan NO. 1 Hospital, Wuhan, China
| | - Xiubin Tao
- Department of Nursing, Yijishan Hospital Affiliated to Wannan Medical College, Wuhu, China
| | - Jiaohua Yu
- Department of Nursing, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
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Li S, Zhan Y, Zhang J, Liu Y. Effect of icariside II and metformin on penile erectile function, histological structure, oxidative stress, and mitochondrial autophagy in type 2 diabetic rats with erectile dysfunction. EUR UROL SUPPL 2020. [DOI: 10.1016/s2666-1683(20)33219-5] [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: 11/16/2022] Open
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Liu L, He XM, Feng LL, Duan DY, Zhan Y, Cheng TY. Cloning of four HSPA multigene family members in Haemaphysalis flava ticks. Med Vet Entomol 2020; 34:192-200. [PMID: 31802518 DOI: 10.1111/mve.12423] [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] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/25/2019] [Revised: 10/29/2019] [Accepted: 11/17/2019] [Indexed: 06/10/2023]
Abstract
The heat shock protein 70 (HSPA) family and their genes have been studied in ticks and are considered as possible antigen candidates for the development of anti-tick vaccines. However, knowledge about their members, structure and function in ticks is incomplete. Based on our transcriptomic data, the full length of four HSPA genes in Haemaphysalis flava (Acari: Ixodidae) was cloned via rapid amplification of cDNA ends. The open reading frame of HSPA2A, HSPA2B, HSPA5 and HSPA9 was 1920, 1911, 1983 and 2088 bp in length, respectively. Three family signatures and one localization motif were in the encoding proteins. HSPA2A and HSPA2B were predicted to be located at cytoplasm/nucleus, whereas HSPA5 and HSPA9 were at endoplasmic reticulum and mitochondria, respectively. In silico simulation demonstrated that those proteins had distinct numbers of α-helixes, extended strands and coils, and different antigenic epitopes. Expression of HSPA5 and HSPA9 in the salivary gland was significantly higher in partially-engorged female adult ticks than the fully-engorged (P < 0.01) as shown by a quantitative polymerase chain reaction. Our data indicated that H. flava ticks had at least four HSPA genes encoding proteins with different cellular locations, structures and expression profiles, suggesting their diverse roles in tick biology.
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Affiliation(s)
- L Liu
- College of Veterinary Medicine, Hunan Provincial Key Laboratory of Protein Engineering in Animal Vaccines, Hunan Collaborative Innovation Center for Safety Production of Livestock and Poultry, Hunan Agricultural University, Changsha, Hunan, China
| | - X-M He
- College of Veterinary Medicine, Hunan Provincial Key Laboratory of Protein Engineering in Animal Vaccines, Hunan Collaborative Innovation Center for Safety Production of Livestock and Poultry, Hunan Agricultural University, Changsha, Hunan, China
| | - L-L Feng
- College of Veterinary Medicine, Hunan Provincial Key Laboratory of Protein Engineering in Animal Vaccines, Hunan Collaborative Innovation Center for Safety Production of Livestock and Poultry, Hunan Agricultural University, Changsha, Hunan, China
| | - D-Y Duan
- College of Veterinary Medicine, Hunan Provincial Key Laboratory of Protein Engineering in Animal Vaccines, Hunan Collaborative Innovation Center for Safety Production of Livestock and Poultry, Hunan Agricultural University, Changsha, Hunan, China
| | - Y Zhan
- College of Veterinary Medicine, Hunan Provincial Key Laboratory of Protein Engineering in Animal Vaccines, Hunan Collaborative Innovation Center for Safety Production of Livestock and Poultry, Hunan Agricultural University, Changsha, Hunan, China
| | - T-Y Cheng
- College of Veterinary Medicine, Hunan Provincial Key Laboratory of Protein Engineering in Animal Vaccines, Hunan Collaborative Innovation Center for Safety Production of Livestock and Poultry, Hunan Agricultural University, Changsha, Hunan, China
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Lin H, Sun Y, Li M, Zhan Y, Lin L, Ding Z, Han Y. Sex modulates the apolipoprotein E ε4 effect on white matter and cortical functional connectivity in individuals with amnestic mild cognitive impairment. Eur J Neurol 2020; 27:1415-1421. [PMID: 32304148 DOI: 10.1111/ene.14226] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [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: 02/15/2020] [Accepted: 03/18/2020] [Indexed: 12/31/2022]
Abstract
BACKGROUND AND PURPOSE Recent studies from the Alzheimer's Disease Neuroimaging Initiative show that, in the USA, 75% of patients with Alzheimer's disease are female. To date, there have rarely been any attempts to analyze data by sex or gender, which limits the potential for discovering the effects of sex or gender on disease. Little evidence is available regarding the effect of gender and apolipoprotein E (APOE) ε4 on white matter (WM) connection from the functional perspective due to the lack of appropriate techniques for detecting blood-oxygen-level-dependent signals in WM. METHODS We took advantage of a new framework known as functional tensor imaging to investigate the effect of sex and APOEε4 on WM cortical functional connectivity throughout the brain. RESULTS In a group of female patients with amnestic mild cognitive impairment, we found a significantly reduced functional connectivity in the left posterior limb of the internal capsule, left superior fronto-occipital fasciculus, bilateral temporopolar area and right somatosensory association cortex in APOEε4 carriers in contrast to non-carriers. We also found a significant APOEε4 by sex interaction effect on the right somatosensory association cortex, left temporopolar area and left superior temporal gyrus. The clinical Montreal Cognitive Assessment score was significantly negatively associated with the right somatosensory association cortex with APOEε4 by sex interaction in males. CONCLUSIONS These results indicate that increased APOE-related risk in women may be associated with decreased activity in both gray matter and WM in patients with amnestic mild cognitive impairment compared with men. The finding suggests accounting for sex differences in neuroimaging biomarkers, diagnostics and treatment strategy.
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Affiliation(s)
- H Lin
- Department of Neurology, Xuanwu Hospital of Capital Medical University, Beijing, China
| | - Y Sun
- Department of Neurology, Xuanwu Hospital of Capital Medical University, Beijing, China
| | - M Li
- Vanderbilt University Institute of Imaging Science, Vanderbilt University, Nashville, TN, USA.,Department of Radiology and Radiological Sciences, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Y Zhan
- School of Mechanical, Electrical and Information Engineering, Shandong University, Jinan, China
| | - L Lin
- Department of Neurology, Xuanwu Hospital of Capital Medical University, Beijing, China
| | - Z Ding
- Vanderbilt University Institute of Imaging Science, Vanderbilt University, Nashville, TN, USA.,Department of Electrical Engineering and Computer Science, Vanderbilt University, Nashville, TN, USA.,Department of Biomedical Engineering, Vanderbilt University, Nashville, TN, USA
| | - Y Han
- Department of Neurology, Xuanwu Hospital of Capital Medical University, Beijing, China.,National Clinical Research Center for Geriatric Disorders, Beijing, China.,Center of Alzheimer's Disease, Beijing Institute for Brain Disorders, Beijing, China
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Liu Q, Zhan Y, Zhang S, Feng S, Wang X, Sun W, Ye J, Zhang Y. "Optical tentacle" of suspended polymer micro-rings on a multicore fiber facet for vapor sensing. Opt Express 2020; 28:11730-11741. [PMID: 32403678 DOI: 10.1364/oe.390145] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/14/2020] [Accepted: 03/09/2020] [Indexed: 06/11/2023]
Abstract
We designed a new type of gas sensor, an optical tentacle, made of highly integrated polymer micro-ring resonators in three-dimensional space on the tiny end-facet of a multicore optical fiber. Two pairs of three polymer micro-ring resonators were hung symmetrically on both sides of three suspended micro-waveguides as the sensing units. The micro-waveguides interlace to form a three-layer nested configuration, which makes the multicore optical fiber a "tentacle" for vapors of volatile organic compounds. Both experiments and theoretical simulation confirmed that the symmetrical coupling of multiple pairs of rings with the micro-waveguide had better resonance than the single ring setup. This is because the symmetrical light modes in the waveguides couple with the rings separately. All the optical micro-components were fabricated by the two-photon lithography technology on the end facet of multicore optical fiber. The optical tentacle shows good sensitivity and reversibility. This approach can also be adopted for sensor array design on a chip. Furthermore, optical sensors that can sense vapors with multiple constituents may be achieved in the future by adding selective sensitive materials to or on the surface of the rings.
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Nelson T, Kawabori M, Zhan Y, Warner K, Rastegar H, Chen F, Kiernan M, DeNofrio D, Couper G. Non-Stenotic, “Graft over Graft” LVAD Outflow Graft Protection Technique. J Heart Lung Transplant 2020. [DOI: 10.1016/j.healun.2020.01.254] [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: 11/17/2022] Open
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Hironaka C, Upshaw J, Ortoleva J, Cobey F, Nordan T, Zhan Y, Patel A, Chen F, Kapur N, Couper G, Kawabori M. The Effect of Percutaneous Left Ventricular Assist Device Placement to the Native Aortic Valve Competency. J Heart Lung Transplant 2020. [DOI: 10.1016/j.healun.2020.01.148] [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: 11/16/2022] Open
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Wu J, Yan F, Chai W, Fu C, Yan X, Zhan Y, Sun K. Breast cancer recurrence risk prediction using whole-lesion histogram analysis with diffusion kurtosis imaging. Clin Radiol 2020; 75:239.e1-239.e8. [DOI: 10.1016/j.crad.2019.10.015] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2019] [Accepted: 10/21/2019] [Indexed: 12/16/2022]
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Hu ZW, Xu H, Zhan Y, Xin RH, Sun CY, Tian SR, Zhan XL, Chen D, Wang ZG, Wu JM. [The relationship between acid reflux and esophageal motility, esophagitis and cardiac morphology in gastroesophageal reflux disease]. Zhonghua Yi Xue Za Zhi 2019; 99:3494-3499. [PMID: 31826568 DOI: 10.3760/cma.j.issn.0376-2491.2019.44.009] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Objective: To analyze the relationship between the severity of esophageal acid reflux and esophageal motility, esophageal mucosal injury and morphological anatomy of gastroesophageal junction (GEJ) in patients with gastroesophageal reflux disease (GERD). Methods: The clinicaldata of GERD patients who underwent 24 h pH-impedance monitoring, gastroscopy and high-resolution manometry (HRM) from January 2016 to January 2019 in the Gastroesophageal Surgery Department of PLA Rocket Force Characteristic Medical Center were retrospectively analyzed. The patients were divided into non-pathological acid reflux group, mild pathological acid reflux group and moderate to severe pathological acid reflux group according to the DeMeester score. The gender and age of each group were matched, with 60 cases in each group. Statistical analysiswas performed to analyze thedifferences in upper esophageal sphincter pressure, lower esophageal sphincter pressure (LES), LES length, length of ventral LES, percentage of ineffective swallowing, esophagitis, Hill grade of GEJ, and hiatus hernia (HH) in each group. The comparison and correlation analysis are also carried out between the groups. Results: The male-female ratio was 33/27, and the age was (57±13) years in each group. Non-parametric analysis showed that the LES pressure and the length of the ventral LES decreased with the severity of acid reflux, and there was a statistical difference (P= 0.033, P=0.015). The detection rate of HH by HRM increased significantly (χ(2)=0.001) as well. Esophagitis score increased with the severity of acid reflux and there was statistical difference (P<0.001).The detection rate of esophagitis increased significantly (χ(2)<0.001) as well. Hill grading score of GEJ increased with the severity of acid reflux, and there was statistical difference (P<0.001).The detection rate of HH by endoscopy increased significantly (χ(2)<0.001) as well. The correlation between DeMeester score and LES pressure, length of ventral LES, percentage of ineffective swallowing, esophagitis score, and Hill grade score were statistically significant (P<0.05). Conclusions: The esophageal low motility (such as low LES pressure) and anatomical abnormalities (abdominal esophageal shortening, GEJ flabbiness, and even HH formation) of the GEJ regionare significantly associated with the severity of acid reflux. These factors may be important causes of increased acid reflux. In addition, the aggravation of acid reflux can also increase the incidence and severity of esophagitis.
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Affiliation(s)
- Z W Hu
- Gastroesophageal Surgery Department, PLA Rocket Force Characteristic Medical Center, Beijing 100088, China
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Wang N, Hou MS, Zhan Y, Shen XB, Xue HY. MALAT1 promotes cisplatin resistance in cervical cancer by activating the PI3K/AKT pathway. Eur Rev Med Pharmacol Sci 2019; 22:7653-7659. [PMID: 30536307 DOI: 10.26355/eurrev_201811_16382] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
OBJECTIVE To investigate the role of MALAT1 in the cisplatin treatment of cervical cancer and its underlying mechanism. MATERIALS AND METHODS The effects of different doses of cisplatin on the proliferation and apoptosis of cervical cancer cells were detected by cell counting kit-8 (CCK-8) assay and apoptosis assay, respectively. We used bioinformatics methods to predict the downstream genes of MALAT1 and examined the expression relationship between the target gene BRWD1 and MALAT1 by quantitative Real-time polymerase chain reaction (qRT-PCR). Western blot was performed to detect the expression levels of apoptosis-related proteins and key genes in PI3K/AKT signaling pathway. RESULTS After MALAT1 was knocked down, cisplatin showed an inhibited effect on the proliferation of HeLa and C-33A cells in a concentration-dependent manner. After treatment of cervical cancer cells with 5 μM cisplatin, MALAT1 knockdown enhanced the apoptosis of HeLa and C-33A cells, and up-regulated expression of cleaved caspase-3. Over-expression of MALAT1 in cells showed the opposite results. Starbase website was used to predict that MALAT1 might regulate BRWD1 expression. Over-expression of MALAT1 significantly up-regulated the mRNA expression of BRWD1 in HeLa and C-33A cells. After knockdown of BRWD1, cisplatin markedly decreased the proliferation of HeLa and C-33A cells, and promoted cell apoptosis and cleaved caspase-3 expression. Besides, HeLa and C-33A cells showed increased expressions of p-PI3K and p-AKT after MALAT1 was up-regulated. CONCLUSIONS MALAT1 promoted the cisplatin resistance of cervical cancer, which might be related to regulation of cell apoptosis via BRWD1 and PI3K/AKT pathway.
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Affiliation(s)
- N Wang
- Department of Pathology, Shaoxing Hospital of Traditional Chinese Medicine, Shaoxing, China.
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Wang C, Zhou Y, Zheng W, Liu W, Zhan Y, Li H, Chen L, Zhang B, Walter M, Li M, Li MD, Ning Y. Association between depression subtypes and response to repeated-dose intravenous ketamine. Acta Psychiatr Scand 2019; 140:446-457. [PMID: 31483855 DOI: 10.1111/acps.13096] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 08/26/2019] [Indexed: 12/15/2022]
Abstract
OBJECTIVE About half or more of treatment-resistant depressed patients do not respond to ketamine, and few clinical predictors to gauge the most likely antidepressant response have been proposed. We explored whether depression subtypes are associated with response to ketamine. METHOD Ninety-seven participants with depression were administered six repeated-dose intravenous ketamine and assessed for depression (Montgomery-Åsberg Depression Rating Scale, MADRS), anxiety (Hamilton Anxiety Rating Scale, HAMA), and suicidal ideation (Beck Scale for Suicidal Ideation, SSI) at baseline, 24 h after each infusion, and 2 weeks after the whole treatment. Participants were classified by melancholic/anxious subtype. Individuals who met criteria for neither or both subtypes were classified separately, resulting in four mutually exclusive groups. RESULTS Patients with melancholic or melancholic-anxious features were less likely to respond (e.g., day 13, melancholic-anxious vs. anxious, OR 0.138, 95% CI 0.032-0.584, P = 0.007) or remit (e.g., day 26, melancholic vs. no subtype, OR 0.182, 95% CI 0.035-0.960, P = 0.045) and took longer to achieve response/remission than those with anxious or no subtype features. Faster HAMA score reductions were observed in patients with anxious or melancholic-anxious features, and faster SSI score reductions were observed among those with melancholic-anxious features. CONCLUSION Our study shows promising results for ketamine as a novel antidepressant preferentially for the treatment of non-melancholic or anxious depression.
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Affiliation(s)
- C Wang
- The Affiliated Brain Hospital of Guangzhou Medical University (Guangzhou Huiai Hospital), Guangzhou, China.,Guangdong Engineering Technology Research Center for Translational Medicine of Mental Disorders, Guangzhou, China
| | - Y Zhou
- The Affiliated Brain Hospital of Guangzhou Medical University (Guangzhou Huiai Hospital), Guangzhou, China.,Guangdong Engineering Technology Research Center for Translational Medicine of Mental Disorders, Guangzhou, China
| | - W Zheng
- The Affiliated Brain Hospital of Guangzhou Medical University (Guangzhou Huiai Hospital), Guangzhou, China.,Guangdong Engineering Technology Research Center for Translational Medicine of Mental Disorders, Guangzhou, China
| | - W Liu
- The Affiliated Brain Hospital of Guangzhou Medical University (Guangzhou Huiai Hospital), Guangzhou, China.,Guangdong Engineering Technology Research Center for Translational Medicine of Mental Disorders, Guangzhou, China
| | - Y Zhan
- The Affiliated Brain Hospital of Guangzhou Medical University (Guangzhou Huiai Hospital), Guangzhou, China.,Guangdong Engineering Technology Research Center for Translational Medicine of Mental Disorders, Guangzhou, China
| | - H Li
- The Affiliated Brain Hospital of Guangzhou Medical University (Guangzhou Huiai Hospital), Guangzhou, China.,Guangdong Engineering Technology Research Center for Translational Medicine of Mental Disorders, Guangzhou, China
| | - L Chen
- The Affiliated Brain Hospital of Guangzhou Medical University (Guangzhou Huiai Hospital), Guangzhou, China.,Guangdong Engineering Technology Research Center for Translational Medicine of Mental Disorders, Guangzhou, China
| | - B Zhang
- The Affiliated Brain Hospital of Guangzhou Medical University (Guangzhou Huiai Hospital), Guangzhou, China.,Guangdong Engineering Technology Research Center for Translational Medicine of Mental Disorders, Guangzhou, China
| | - M Walter
- Clinical Affective Neuroimaging Laboratory, Department of Psychiatry and Psychotherapy, University of Tuebingen, Tuebingen, Germany
| | - M Li
- Magnetic Resonance Spectroscopy in Psychiatry, Neuropsychiatric Imaging Group, Max Planck Institute for Biological Cybernetics, Tuebingen, Germany
| | - M D Li
- The Affiliated Brain Hospital of Guangzhou Medical University (Guangzhou Huiai Hospital), Guangzhou, China.,State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, Zhejiang University School of Medicine, Hangzhou, China
| | - Y Ning
- The Affiliated Brain Hospital of Guangzhou Medical University (Guangzhou Huiai Hospital), Guangzhou, China.,Guangdong Engineering Technology Research Center for Translational Medicine of Mental Disorders, Guangzhou, China
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Tendler S, Zhan Y, Pettersson A, Lewensohn R, Viktorsson K, Fang F, De Petris L. P2.12-06 Factors of Importance for Survival After Platinum Re-Challenge in Platinum-Sensitive Small-Cell Lung Cancer Patients. J Thorac Oncol 2019. [DOI: 10.1016/j.jtho.2019.08.1751] [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: 11/28/2022]
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Chen D, Yuan S, Lao M, Zhan Y, Xu H, Liang L, Cai X, Wang X, Zhan Z. Umbilical arterial Doppler ultrasonography predicts late pregnancy outcomes in patients with lupus nephritis: a multicenter study from southern China. Lupus 2019; 28:1312-1319. [PMID: 31495267 DOI: 10.1177/0961203319873702] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
OBJECTIVES To investigate the fetal adverse pregnancy outcomes (APOs) and the predictive value of umbilical arterial Doppler ultrasonography in the third trimester in pregnant women with lupus nephritis (LN). METHODS A retrospective cohort study enrolling 203 LN patients from 2007 to 2017 was performed. Ultrasonic parameters were recorded. RESULTS Fetal APOs occurred in 103 patients (103/203, 50.7%). Sixty-six pregnancies (66/203, 32.5%) ended with preterm births. The incidence rate of intrauterine growth restriction (IUGR) was 18.2% (37/203). Fetal distress was noted in 23 pregnancies (23/203, 11.3%). All the Doppler parameters elevated in patients with IUGR, fetal distress, and composite conditions. Resistance index (RI) indicated the highest risk of IUGR and composite APOs. The cutoff values were 0.66 and 0.67, respectively. Sensitivities were 51.4% and 33.7%, and specificities were 87.4% and 92.1%. Peak velocity of the umbilical arteries at end-systole (Vmax, abbreviated as S) to that at end-diastole (Vmin, abbreviated as D) (S/D) ratio was also a best predictor for IUGR, with the optimal cutoff value of 2.88. Sensitivity and specificity were comparable with RI. Pulsatility index (PI) over 0.84 was an ideal indicator for fetal distress with an optimal combination of sensitivity (89.5%) and specificity (51.6%). CONCLUSIONS Fetal complications were frequent in patients with LN. Umbilical arterial Doppler ultrasonography was a useful measure to predict late IUGR, fetal distress, and the composite APOs.
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Affiliation(s)
- D Chen
- Department of Rheumatology, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - S Yuan
- Department of Rheumatology, South China University of Technology, Guangzhou, China
| | - M Lao
- Department of Rheumatology, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China.,Department of Geriatrics, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Y Zhan
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - H Xu
- Department of Rheumatology, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - L Liang
- Department of Rheumatology, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - X Cai
- Department of Rheumatology, South China University of Technology, Guangzhou, China
| | - X Wang
- Department of Ultrasound, The First Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Z Zhan
- Department of Rheumatology, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
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Abstract
Objectives CT-based three-column classification (TCC) has been widely used in the treatment of tibial plateau fractures (TPFs). In its updated version (updated three-column concept, uTCC), a fracture morphology-based injury mechanism was proposed for effective treatment guidance. In this study, the injury mechanism of TPFs is further explained, and its inter- and intraobserver reliability is evaluated to perfect the uTCC. Methods The radiological images of 90 consecutive TPF patients were collected. A total of 47 men (52.2%) and 43 women (47.8%) with a mean age of 49.8 years (sd 12.4; 17 to 77) were enrolled in our study. Among them, 57 fractures were on the left side (63.3%) and 33 were on the right side (36.7%); no bilateral fracture existed. Four observers were chosen to classify or estimate independently these randomized cases according to the Schatzker classification, TCC, and injury mechanism. With two rounds of evaluation, the kappa values were calculated to estimate the inter- and intrareliability. Results The overall inter- and intraobserver agreements of the injury mechanism were substantial (κinter = 0.699, κintra = 0.749, respectively). The initial position and the force direction, which are two components of the injury mechanism, had substantial agreement for both inter-reliability or intrareliability. The inter- and intraobserver agreements were lower in high-energy fractures (Schatzker types IV to VI; κinter = 0.605, κintra = 0.721) compared with low-energy fractures (Schatzker types I to III; κinter = 0.81, κintra = 0.832). The inter- and intraobserver agreements were relatively higher in one-column fractures (κinter = 0.759, κintra = 0.801) compared with two-column and three-column fractures. Conclusion The complete theory of injury mechanism of TPFs was first put forward to make the TCC consummate. It demonstrates substantial inter- and intraobserver agreement generally. Furthermore, the injury mechanism can be promoted clinically. Cite this article: B-B. Zhang, H. Sun, Y. Zhan, Q-F. He, Y. Zhu, Y-K. Wang, C-F. Luo. Reliability and repeatability of tibial plateau fracture assessment with an injury mechanism-based concept. Bone Joint Res 2019;8:357–366. DOI: 10.1302/2046-3758.88.BJR-2018-0331.R1.
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Affiliation(s)
- B-B Zhang
- Department of Orthopaedic Surgery, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
| | - H Sun
- Department of Orthopaedic Surgery, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
| | - Y Zhan
- Department of Orthopaedic Surgery, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
| | - Q-F He
- Department of Orthopaedic Surgery, Zhejiang University School of Medicine Affiliated Hangzhou First People's Hospital, Shanghai, China
| | - Y Zhu
- Department of Orthopaedic Surgery, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
| | - Y-K Wang
- Department of Orthopaedic Surgery, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
| | - C-F Luo
- Department of Orthopaedic Surgery, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
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MA F, Mao H, Liu H, Yang L, Chen J, Wang Y, Zhan Y. MON-002 YI QI QING RE GAO, A TRADITIONAL CHINESE HERBAL FORMULA, ORCHESTRATES ACTIN CYTOSKELETON REORGANIZATION INDUCED BY PUROMYCIN AMINONUCLEOSIDE IN PODOCYTES VIA RHOA/ROCK SIGNALING PATHWAY. Kidney Int Rep 2019. [DOI: 10.1016/j.ekir.2019.05.756] [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: 10/26/2022] Open
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Zhan Y, DU YT, Yang ZZ, Zhang CL, Qi XR. [Preparation and characterization of paclitaxel microspheres in situ gel and its antitumor efficacy by local injection]. Beijing Da Xue Xue Bao Yi Xue Ban 2019; 51:477-486. [PMID: 31209419 DOI: 10.19723/j.issn.1671-167x.2019.03.015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
OBJECTIVE The current difficulties in the treatment of tumor include repeated administration and high recurrence rate after tumor resection. In order to reduce the number of doses, avoid side effects of chemotherapeutic drugs, suppress tumor growth and delay tumor recurrence after surgery, a temperature-sensitive in situ gel with paclitaxel microspheres (PTX/M gel) was prepared. PTX/M gel was administered by intratumoral injection once a month. METHODS First of all, paclitaxel microspheres (PTX/M) were prepared by emulsion solvent evaporation method. A laser particle size distribution analyzer was used to investigate the size, distribution, specific surface area of microspheres. Paclitaxel content was determined by high performance liquid chromatography (HPLC). Then encapsulation efficiency of paclitaxel was calculated and in vitro release characteristics were studied. Secondly, PTX/M gel was prepared by cold dissolution method. The phase transition temperature, elastic modulus, dissolution curve, correlation between dissolution and release were measured. Finally, U87 MG and 4T1 subcutaneous tumor models were established respectively to study the efficacy of PTX/M gel in suppressing tumor growth and delaying tumor recurrence after surgery. RESULTS The median diameter of the selected PTX/M was (32.24±1.09) μm, the specific surface area was (206.61±10.23) m2/kg, the encapsulation efficiency was 85.29%±1.34%, and the cumulative release percentage of paclitaxel from PTX/M was 33.56%±3.33% in one month. Phase transition temperature of PTX/M gel was 33 °C. The elastic modulus of PTX/M gel at 25 °C and 37 °C were 4.2×103 Pa and 18×103 Pa, respectively. The gel could stay in the body for up to 48 hours. It could be seen from the results of animal experiments that were compared with the saline group and the Taxol group, and the tumor-bearing mice of the PTX/M gel group had the slowest tumor growth (P<0.05). Similarly, in the tumor recurrence experiments, the mice of PTX/M gel group had the latest tumor recurrence after surgery. CONCLUSION As a local sustained-release preparation, PTX/M gel can effectively suppress tumor growth and delay postoperative recurrence of tumors. It has potential advantages in tumor treatment.
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Affiliation(s)
- Y Zhan
- Department of Pharmaceutics, Peking University School of Pharmaceutical Sciences & Beijing Key Laboratory of Molecular Pharmaceutics and New Drug Delivery System, Beijing 100191, China
| | - Y T DU
- Department of Pharmaceutics, Peking University School of Pharmaceutical Sciences & Beijing Key Laboratory of Molecular Pharmaceutics and New Drug Delivery System, Beijing 100191, China
| | - Z Z Yang
- Department of Pharmaceutics, Peking University School of Pharmaceutical Sciences & Beijing Key Laboratory of Molecular Pharmaceutics and New Drug Delivery System, Beijing 100191, China
| | - C L Zhang
- Department of Nuclear Medicine, Peking University First Hospital, Beijing 100034, China
| | - X R Qi
- Department of Pharmaceutics, Peking University School of Pharmaceutical Sciences & Beijing Key Laboratory of Molecular Pharmaceutics and New Drug Delivery System, Beijing 100191, China
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Sun J, Zhan Y, Mariosa D, Larsson H, Almqvist C, Ingre C, Zagai U, Pawitan Y, Fang F. Antibiotics use and risk of amyotrophic lateral sclerosis in Sweden. Eur J Neurol 2019; 26:1355-1361. [DOI: 10.1111/ene.13986] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2019] [Accepted: 05/06/2019] [Indexed: 12/13/2022]
Affiliation(s)
- J. Sun
- Department of Medical Epidemiology and Biostatistics Karolinska Institutet Stockholm Sweden
| | - Y. Zhan
- Department of Medical Epidemiology and Biostatistics Karolinska Institutet Stockholm Sweden
| | - D. Mariosa
- Department of Medical Epidemiology and Biostatistics Karolinska Institutet Stockholm Sweden
| | - H. Larsson
- Department of Medical Epidemiology and Biostatistics Karolinska Institutet Stockholm Sweden
- School of Medical Sciences Örebro University Örebro Sweden
| | - C. Almqvist
- Department of Medical Epidemiology and Biostatistics Karolinska Institutet Stockholm Sweden
- Astrid Lindgren Children's Hospital Karolinska University Hospital Stockholm Sweden
| | - C. Ingre
- Department of Clinical Neuroscience Karolinska Institutet Stockholm Sweden
| | - U. Zagai
- Department of Medical Epidemiology and Biostatistics Karolinska Institutet Stockholm Sweden
| | - Y. Pawitan
- Department of Medical Epidemiology and Biostatistics Karolinska Institutet Stockholm Sweden
| | - F. Fang
- Department of Medical Epidemiology and Biostatistics Karolinska Institutet Stockholm Sweden
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Chen SR, An YY, Zhan Y, Qu J, Lei XW. [Quantitative evaluation of the relationship between femoral trochlear dysplasia and the degeneration of the patellofemoral cartilage by using T2mapping]. Zhonghua Yi Xue Za Zhi 2019; 99:1651-1655. [PMID: 31189265 DOI: 10.3760/cma.j.issn.0376-2491.2019.21.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Objective: To evaluate the relationship between the femoral trochlear dysplasia(FTD) and the degeneration of the patellofemoral cartilage by using MR T2mapping technique. Methods: Sixty two subjects with FTD(aged 18-45 years) were enrolled in Tianjin First Center Hospital from January 2016 to December 2017,the controls which both age and gender were matched.T2mapping scan were aquired for each subject and control. Compare the differences of the T2mapping values for each area between subjects and controls, and compare Dejour types of femoral trochlear in different age groups, respectively. Results: The T2mapping value of subjects was significant lower than controls: the superficial-femoral-lateral layer (sFL) (P=0.000) and the superficial-patella-lateral layer (sPL) (P=0.009). In the group of age less than 30 years, the T2mapping value of subjects was significant lower than controls:sFL (P=0.001) and sPL (P=0.015). In group of age greater than 30 years, the T2mapping value of subjects was significant lower than controls: sFL (P=0.035). In difference Dejour types of FTD, the T2mapping value of type B-D was lowest in sFL(P=0.014),sPL(P=0.000), the superficial-patella-medial layer (sPM) (P=0.020) and the the T2mapping value of type B-D was highest in the deep-femoral-medial layer (dFM) (P=0.006). The difference was statistically significant, P<0.05. Conclusion: The FTD might cause the early degeneration of patellofemoral cartilage, which significantly appear in the young age; The type B-D of FTD is more likely to cause the wider range of superficial cartilage injure and involved some part of deep layer; the injure shows dehydration change in superficial cartilage and edema in deep layer.
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Affiliation(s)
- S R Chen
- Tianjin University of Traditional Chinese Medicine, Tianjin 300110, China
| | - Y Y An
- Department of Radiology, Tianjin First Center Hospital, Tianjin 300110, China
| | - Y Zhan
- Department of Radiology, Tianjin First Center Hospital, Tianjin 300110, China
| | - J Qu
- Department of Radiology, Tianjin First Center Hospital, Tianjin 300110, China
| | - X W Lei
- Department of Radiology, Tianjin First Center Hospital, Tianjin 300110, China
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