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Sharma R, Chiang YH, Chen HC, Lin HY, Yang WB, Nepali K, Lai MJ, Chen KY, Liou JP, Hsu TI. Dual inhibition of CYP17A1 and HDAC6 by abiraterone-installed hydroxamic acid overcomes temozolomide resistance in glioblastoma through inducing DNA damage and oxidative stress. Cancer Lett 2024; 586:216666. [PMID: 38311053 DOI: 10.1016/j.canlet.2024.216666] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2023] [Revised: 01/17/2024] [Accepted: 01/18/2024] [Indexed: 02/06/2024]
Abstract
Glioblastoma (GBM) is a highly aggressive and treatment-resistant brain tumor, necessitating novel therapeutic strategies. In this study, we present a mechanistic breakthrough by designing and evaluating a series of abiraterone-installed hydroxamic acids as potential dual inhibitors of CYP17A1 and HDAC6 for GBM treatment. We established the correlation of CYP17A1/HDAC6 overexpression with tumor recurrence and temozolomide resistance in GBM patients. Compound 12, a dual inhibitor, demonstrated significant anti-GBM activity in vitro, particularly against TMZ-resistant cell lines. Mechanistically, compound 12 induced apoptosis, suppressed recurrence-associated genes, induced oxidative stress and initiated DNA damage response. Furthermore, molecular modeling studies confirmed its potent inhibitory activity against CYP17A1 and HDAC6. In vivo studies revealed that compound 12 effectively suppressed tumor growth in xenograft and orthotopic mouse models without inducing significant adverse effects. These findings highlight the potential of dual CYP17A1 and HDAC6 inhibition as a promising strategy for overcoming treatment resistance in GBM and offer new hope for improved therapeutic outcomes.
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Affiliation(s)
- Ram Sharma
- School of Pharmacy, College of Pharmacy, Taipei Medical University, Taipei, Taiwan
| | - Yung-Hsiao Chiang
- Department of Neurosurgery, Taipei Medical University Hospital, Taipei Medical University, Taipei, Taiwan; Ph.D. Program in Medical Neuroscience, College of Medical Science and Technology, Taipei Medical University and National Health Research Institutes, Taipei, Taiwan; Department of Surgery, College of Medicine, Taipei Medical University, Taipei, Taiwan; Taipei Neuroscience Institute, Taipei Medical University, Taipei, Taiwan; TMU Research Center of Neuroscience, Taipei Medical University, Taipei, Taiwan; Department of Neurosurgery, Shuang Ho Hospital, Taipei Medical University, Taipei, Taiwan
| | - Hsien-Chung Chen
- Ph.D. Program in Medical Neuroscience, College of Medical Science and Technology, Taipei Medical University and National Health Research Institutes, Taipei, Taiwan; Taipei Neuroscience Institute, Taipei Medical University, Taipei, Taiwan; TMU Research Center of Neuroscience, Taipei Medical University, Taipei, Taiwan; Department of Neurosurgery, Shuang Ho Hospital, Taipei Medical University, Taipei, Taiwan
| | - Hong-Yi Lin
- Taipei Neuroscience Institute, Taipei Medical University, Taipei, Taiwan; Graduate Institute of Medical Sciences, College of Medicine, Taipei Medical University, Taipei, Taiwan
| | - Wen-Bin Yang
- Ph.D. Program in Medical Neuroscience, College of Medical Science and Technology, Taipei Medical University and National Health Research Institutes, Taipei, Taiwan; TMU Research Center of Neuroscience, Taipei Medical University, Taipei, Taiwan; International Master Program in Medical Neuroscience, College of Medical Science and Technology, Taipei Medical University, Taipei, Taiwan
| | - Kunal Nepali
- School of Pharmacy, College of Pharmacy, Taipei Medical University, Taipei, Taiwan; TMU Research Center for Drug Discovery, Taipei Medical University, Taipei, Taiwan; Ph.D. Program in Drug Discovery and Development Industry, College of Pharmacy, Taipei Medical University, Taiwan
| | - Mei-Jung Lai
- TMU Research Center for Drug Discovery, Taipei Medical University, Taipei, Taiwan; Ph.D. Program in Drug Discovery and Development Industry, College of Pharmacy, Taipei Medical University, Taiwan
| | - Kai-Yun Chen
- Ph.D. Program in Medical Neuroscience, College of Medical Science and Technology, Taipei Medical University and National Health Research Institutes, Taipei, Taiwan; TMU Research Center of Neuroscience, Taipei Medical University, Taipei, Taiwan; International Master Program in Medical Neuroscience, College of Medical Science and Technology, Taipei Medical University, Taipei, Taiwan
| | - Jing-Ping Liou
- School of Pharmacy, College of Pharmacy, Taipei Medical University, Taipei, Taiwan; TMU Research Center for Drug Discovery, Taipei Medical University, Taipei, Taiwan; Ph.D. Program in Drug Discovery and Development Industry, College of Pharmacy, Taipei Medical University, Taiwan; TMU Research Center of Cancer Translational Medicine, Taipei, Taiwan.
| | - Tsung-I Hsu
- Ph.D. Program in Medical Neuroscience, College of Medical Science and Technology, Taipei Medical University and National Health Research Institutes, Taipei, Taiwan; TMU Research Center of Neuroscience, Taipei Medical University, Taipei, Taiwan; TMU Research Center for Drug Discovery, Taipei Medical University, Taipei, Taiwan; Ph.D. Program in Drug Discovery and Development Industry, College of Pharmacy, Taipei Medical University, Taiwan; International Master Program in Medical Neuroscience, College of Medical Science and Technology, Taipei Medical University, Taipei, Taiwan; TMU Research Center of Cancer Translational Medicine, Taipei, Taiwan.
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Zhou Y, He LN, Wang LN, Chen KY, Qian SD, Li XH, Zang J, Wang DM, Yu XF, Gao J. Human amniotic mesenchymal stromal cell-derived exosomes promote neuronal function by inhibiting excessive apoptosis in a hypoxia/ischemia-induced cerebral palsy model: A preclinical study. Biomed Pharmacother 2024; 173:116321. [PMID: 38394849 DOI: 10.1016/j.biopha.2024.116321] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2023] [Revised: 02/14/2024] [Accepted: 02/19/2024] [Indexed: 02/25/2024] Open
Abstract
BACKGROUND Cerebral palsy (CP) is a condition resulting from perinatal brain injury and can lead to physical disabilities. Exosomes derived from human amniotic mesenchymal stromal cells (hAMSC-Exos) hold promise as potential therapeutic options. OBJECTIVE This study aimed to investigate the impact of hAMSC-Exos on neuronal cells and their role in regulating apoptosis both in vitro and in vivo. METHODS hAMSC-Exos were isolated via ultracentrifugation and characterized via transmission electron microscopy, particle size analysis, and flow cytometry. In vitro, neuronal damage was induced by lipopolysaccharide (LPS). CP rat models were established via left common carotid artery ligation. Apoptosis levels in cells and CP rats were assessed using flow cytometry, quantitative reverse transcription polymerase chain reaction (RT-qPCR), Western blotting, and TUNEL analysis. RESULTS The results demonstrated successful isolation of hAMSC-Exos via ultracentrifugation, as the isolated cells were positive for CD9 (79.7%) and CD63 (80.2%). Treatment with hAMSC-Exos significantly mitigated the reduction in cell viability induced by LPS. Flow cytometry revealed that LPS-induced damage promoted apoptosis, but this effect was attenuated by treatment with hAMSC-Exos. Additionally, the expression of caspase-3 and caspase-9 and the Bcl-2/Bax ratio indicated that excessive apoptosis could be attenuated by treatment with hAMSC-Exos. Furthermore, tail vein injection of hAMSC-Exos improved the neurobehavioral function of CP rats. Histological analysis via HE and TUNEL staining showed that apoptosis-related damage was attenuated following hAMSC-Exo treatment. CONCLUSIONS In conclusion, hAMSC-Exos effectively promote neuronal cell survival by regulating apoptosis, indicating their potential as a promising therapeutic option for CP that merits further investigation.
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Affiliation(s)
- Yu Zhou
- Department of Pediatric Rehabilitation, Huai'an Maternal and Child Health Care Center, Huai'an, Jiangsu 223021, China; Affiliated Hospital of Yang Zhou University Huai'an Maternal and Child Health Care Center, Huai'an, Jiangsu 223021, China
| | - Lu-Na He
- Department of Pediatric Rehabilitation, Huai'an Maternal and Child Health Care Center, Huai'an, Jiangsu 223021, China; Affiliated Hospital of Yang Zhou University Huai'an Maternal and Child Health Care Center, Huai'an, Jiangsu 223021, China
| | - Li-Na Wang
- Department of Pediatric Rehabilitation, Huai'an Maternal and Child Health Care Center, Huai'an, Jiangsu 223021, China; Affiliated Hospital of Yang Zhou University Huai'an Maternal and Child Health Care Center, Huai'an, Jiangsu 223021, China
| | - Kai-Yun Chen
- Drug Clinical Trials Office, The Fourth Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330003, China
| | - Shi-Da Qian
- Department of Orthopedics, The Fourth Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330003, China
| | - Xu-Huan Li
- Department of General Medicine, The Fourth Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330003, China
| | - Jing Zang
- Department of Pediatric Rehabilitation, Huai'an Maternal and Child Health Care Center, Huai'an, Jiangsu 223021, China; Affiliated Hospital of Yang Zhou University Huai'an Maternal and Child Health Care Center, Huai'an, Jiangsu 223021, China
| | - Dong-Ming Wang
- Department of Pediatric Rehabilitation, Huai'an Maternal and Child Health Care Center, Huai'an, Jiangsu 223021, China; Affiliated Hospital of Yang Zhou University Huai'an Maternal and Child Health Care Center, Huai'an, Jiangsu 223021, China
| | - Xue-Feng Yu
- Department of Orthopedics, The Fourth Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330003, China.
| | - Jing Gao
- Department of Pediatric Rehabilitation, Huai'an Maternal and Child Health Care Center, Huai'an, Jiangsu 223021, China; Affiliated Hospital of Yang Zhou University Huai'an Maternal and Child Health Care Center, Huai'an, Jiangsu 223021, China.
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Guo RX, Chen KY. [Research progress in artificial intelligence assisted non-invasive hemodynamic monitoring]. Zhonghua Xin Xue Guan Bing Za Zhi 2023; 51:1305-1310. [PMID: 38123218 DOI: 10.3760/cma.j.cn112148-20231019-00347] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/23/2023]
Affiliation(s)
- R X Guo
- Department of Cardiology, Tianjin Key Laboratory of Ionic-Molecular Function of Cardiovascular Disease, Tianjin Institute of Cardiology, Second Hospital of Tianjin Medical University, Tianjin 300211, China
| | - K Y Chen
- Department of Cardiology, Tianjin Key Laboratory of Ionic-Molecular Function of Cardiovascular Disease, Tianjin Institute of Cardiology, Second Hospital of Tianjin Medical University, Tianjin 300211, China
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Ou JC, Feng YH, Chen KY, Chiang YH, Hsu TI, Wu CC. Correlation of Insulin-Like Growth Factor 1 With Cognitive Functions in Mild Traumatic Brain Injury Patients. Neurotrauma Rep 2023; 4:751-760. [PMID: 38028275 PMCID: PMC10659011 DOI: 10.1089/neur.2023.0085] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2023] Open
Abstract
Mild traumatic brain injury (mTBI) is a prevalent health concern with variable recovery trajectories, necessitating reliable prognostic markers. Insulin-like growth factor 1 (IGF-1) emerges as a potential candidate because of its role in cellular growth, repair, and neuroprotection. However, limited studies investigate IGF-1 as a prognostic marker in mTBI patients. This study aimed to explore the correlation of IGF-1 with cognitive functions assessed using the Wisconsin Card Sorting Test (WCST) in mTBI patients. We analyzed data from 295 mTBI and 200 healthy control participants, assessing demographic characteristics, injury causes, and IGF-1 levels. Cognitive functions were evaluated using the WCST. Correlation analyses and regression models were used to investigate the associations between IGF-1 levels, demographic factors, and WCST scores. Significant differences were observed between mTBI and control groups in the proportion of females and average education years. Falls and traffic accidents were identified as the primary causes of mTBI. The mTBI group demonstrated worse cognitive outcomes on the WCST, except for the "Learning to Learn" index. Correlation analyses revealed significant relationships between IGF-1 levels, demographic factors, and specific WCST scores. Regression models demonstrated that IGF-1, age, and education years significantly influenced various WCST scores, suggesting their roles as potential prognostic markers for cognitive outcomes in mTBI patients. We provide valuable insights into the potential correlation of IGF-1 with cognitive functions in mTBI patients, particularly in tasks requiring cognitive flexibility and problem solving.
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Affiliation(s)
- Ju-Chi Ou
- Neuroscience Research Center, Taipei Medical University, Taipei, Taiwan
- Department of Surgery, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
| | | | - Kai-Yun Chen
- Neuroscience Research Center, Taipei Medical University, Taipei, Taiwan
- PhD Program in Medical Neuroscience, Taipei Medical University, Taipei, Taiwan
- International Master Program in Medical Neuroscience, College of Medical Science and Technology, Taipei Medical University, Taipei, Taiwan
| | - Yung-Hsiao Chiang
- Neuroscience Research Center, Taipei Medical University, Taipei, Taiwan
- Department of Surgery, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
- Department of Neurosurgery, Taipei Medical University Hospital, Taipei, Taiwan
| | - Tsung-I Hsu
- Neuroscience Research Center, Taipei Medical University, Taipei, Taiwan
- PhD Program in Medical Neuroscience, Taipei Medical University, Taipei, Taiwan
- International Master Program in Medical Neuroscience, College of Medical Science and Technology, Taipei Medical University, Taipei, Taiwan
- National Health Research Institutes, Taipei, Taiwan
- TMU Research Center of Cancer Translational Medicine, Taipei Medical University, Taipei, Taiwan
- PhD Program in Drug Discovery and Development Industry, College of Pharmacy, Taipei Medical University, Taipei, Taiwan
| | - Chung-Che Wu
- Neuroscience Research Center, Taipei Medical University, Taipei, Taiwan
- Department of Surgery, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
- Department of Neurosurgery, Taipei Medical University Hospital, Taipei, Taiwan
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Ding YD, Shu LZ, He RS, Chen KY, Deng YJ, Zhou ZB, Xiong Y, Deng H. Listeria monocytogenes: a promising vector for tumor immunotherapy. Front Immunol 2023; 14:1278011. [PMID: 37868979 PMCID: PMC10587691 DOI: 10.3389/fimmu.2023.1278011] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2023] [Accepted: 09/25/2023] [Indexed: 10/24/2023] Open
Abstract
Cancer receives enduring international attention due to its extremely high morbidity and mortality. Immunotherapy, which is generally expected to overcome the limits of traditional treatments, serves as a promising direction for patients with recurrent or metastatic malignancies. Bacteria-based vectors such as Listeria monocytogenes take advantage of their unique characteristics, including preferential infection of host antigen presenting cells, intracellular growth within immune cells, and intercellular dissemination, to further improve the efficacy and minimize off-target effects of tailed immune treatments. Listeria monocytogenes can reshape the tumor microenvironment to bolster the anti-tumor effects both through the enhancement of T cells activity and a decrease in the frequency and population of immunosuppressive cells. Modified Listeria monocytogenes has been employed as a tool to elicit immune responses against different tumor cells. Currently, Listeria monocytogenes vaccine alone is insufficient to treat all patients effectively, which can be addressed if combined with other treatments, such as immune checkpoint inhibitors, reactivated adoptive cell therapy, and radiotherapy. This review summarizes the recent advances in the molecular mechanisms underlying the involvement of Listeria monocytogenes vaccine in anti-tumor immunity, and discusses the most concerned issues for future research.
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Affiliation(s)
- Yi-Dan Ding
- Medical College, Nanchang University, Nanchang, China
| | - Lin-Zhen Shu
- Medical College, Nanchang University, Nanchang, China
| | - Rui-Shan He
- Medical College, Nanchang University, Nanchang, China
| | - Kai-Yun Chen
- Office of Clinical Trials Administration, The Fourth Affiliated Hospital of Nanchang University, Nanchang, China
| | - Yan-Juan Deng
- Department of Pathology, The Fourth Affiliated Hospital of Nanchang University, Nanchang, China
- Tumor Immunology Institute, Nanchang University, Nanchang, China
| | - Zhi-Bin Zhou
- Department of Pathology, The Fourth Affiliated Hospital of Nanchang University, Nanchang, China
- Tumor Immunology Institute, Nanchang University, Nanchang, China
| | - Ying Xiong
- Department of General Medicine, The Second Affiliated Hospital of Nanchang University, Nanchang, China
| | - Huan Deng
- Department of Pathology, The Fourth Affiliated Hospital of Nanchang University, Nanchang, China
- Tumor Immunology Institute, Nanchang University, Nanchang, China
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Do PT, Chuang DM, Wu CC, Huang CZ, Chen YH, Kang SJ, Chiang YH, Hu CJ, Chen KY. Mesenchymal Stem Cells Overexpressing FGF21 Preserve Blood-Brain Barrier Integrity in Experimental Ischemic Stroke. Transl Stroke Res 2023:10.1007/s12975-023-01196-8. [PMID: 37783839 DOI: 10.1007/s12975-023-01196-8] [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: 08/05/2023] [Revised: 09/06/2023] [Accepted: 09/19/2023] [Indexed: 10/04/2023]
Abstract
Blood-brain barrier (BBB) disruption is a prominent pathophysiological mechanism in stroke. Transplantation of mesenchymal stem cells (MSCs) preserves BBB integrity following ischemic stroke. Fibroblast growth factor 21 (FGF21) has been shown to be a potent neuroprotective agent that reduces neuroinflammation and protects against BBB leakage. In this study, we assessed the effects of transplantation of MSCs overexpressing FGF21 (MSCs-FGF21) on ischemia-induced neurological deficits and BBB breakdown. MSCs-FGF21 was injected into the rat brain via the intracerebroventricular route 24 h after middle cerebral artery occlusion (MCAO) surgery. The behavioral performance was assessed using modified neurological severity scores and Y-maze tests. BBB disruption was measured using Evans blue staining, IgG extravasation, and brain water content. The levels of tight junction proteins, aquaporin 4, and neuroinflammatory markers were analyzed by western blotting and immunohistochemistry. The activity of matrix metalloproteinase-9 (MMP-9) was determined using gelatin zymography. At day-5 after MCAO surgery, intraventricular injection of MSCs-FGF21 was found to significantly mitigate the neurological deficits and BBB disruption. The MCAO-induced loss of tight junction proteins, including ZO-1, occludin, and claudin-5, and upregulation of the edema inducer, aquaporin 4, were also remarkably inhibited. In addition, brain infarct volume, pro-inflammatory protein expression, and MMP-9 activation were effectively suppressed. These MCAO-induced changes were only marginally improved by treatment with MSCs-mCherry, which did not overexpress FGF21. Overexpression of FGF21 dramatically improved the therapeutic efficacy of MSCs in treating ischemic stroke. Given its multiple benefits and long therapeutic window, MSC-FGF21 therapy may be a promising treatment strategy for ischemic stroke.
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Affiliation(s)
- Phuong Thao Do
- International Ph.D. Program for Cell Therapy and Regeneration Medicine, College of Medicine, Taipei Medical University, Taipei, 110, Taiwan
- Department of Pediatrics, Hanoi Medical University, Hanoi, 100000, Vietnam
| | - De-Maw Chuang
- Intramural Research Program, National Institute of Mental Health, National Institutes of Health, Bethesda, MD, USA
| | - Chung-Che Wu
- TMU Neuroscience Research Center, Taipei Medical University, Taipei, 110, Taiwan
- Taipei Neuroscience Institute, Taipei Medical University, Taipei, 110, Taiwan
- Department of Surgery, School of Medicine, College of Medicine, Taipei Medical University, Taipei, 110, Taiwan
- Department of Neurosurgery, Taipei Medical University Hospital, Taipei, 110, Taiwan
| | - Chi-Zong Huang
- TMU Neuroscience Research Center, Taipei Medical University, Taipei, 110, Taiwan
- Department of Surgery, School of Medicine, College of Medicine, Taipei Medical University, Taipei, 110, Taiwan
- The PhD Program in Medical Neuroscience, College of Medical Science and Technology, Taipei Medical University, Taipei, 110, Taiwan
| | - Yen-Hua Chen
- TMU Neuroscience Research Center, Taipei Medical University, Taipei, 110, Taiwan
- Department of Surgery, School of Medicine, College of Medicine, Taipei Medical University, Taipei, 110, Taiwan
| | - Shuo-Jhen Kang
- TMU Neuroscience Research Center, Taipei Medical University, Taipei, 110, Taiwan
- Department of Surgery, School of Medicine, College of Medicine, Taipei Medical University, Taipei, 110, Taiwan
| | - Yung-Hsiao Chiang
- TMU Neuroscience Research Center, Taipei Medical University, Taipei, 110, Taiwan
- Taipei Neuroscience Institute, Taipei Medical University, Taipei, 110, Taiwan
- Department of Surgery, School of Medicine, College of Medicine, Taipei Medical University, Taipei, 110, Taiwan
- Department of Neurosurgery, Taipei Medical University Hospital, Taipei, 110, Taiwan
| | - Chaur-Jong Hu
- TMU Neuroscience Research Center, Taipei Medical University, Taipei, 110, Taiwan.
- Taipei Neuroscience Institute, Taipei Medical University, Taipei, 110, Taiwan.
- Department of Neurology, School of Medicine, College of Medicine, Taipei Medical University, Taipei, 110, Taiwan.
- Department of Neurology and Stroke Center, Shuang Ho Hospital, Taipei Medical University, New Taipei City, 235, Taiwan.
| | - Kai-Yun Chen
- TMU Neuroscience Research Center, Taipei Medical University, Taipei, 110, Taiwan.
- The PhD Program in Medical Neuroscience, College of Medical Science and Technology, Taipei Medical University, Taipei, 110, Taiwan.
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Chan L, Hsu W, Chen KY, Wang W, Hung YC, Hong CT. Therapeutic Effect of Human Adipocyte-derived Stem Cell-derived Exosomes on a Transgenic Mouse Model of Parkinson's Disease. In Vivo 2023; 37:2028-2038. [PMID: 37652511 PMCID: PMC10500537 DOI: 10.21873/invivo.13300] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2023] [Revised: 06/27/2023] [Accepted: 07/13/2023] [Indexed: 09/02/2023]
Abstract
BACKGROUND/AIM Stem cell therapy and regenerative medicine are promising for treating Parkinson's disease (PD) not only for the potential for cell replacement but also for the paracrine effect of stem cell secretion, especially proteins and nucleotide-enriched exosomes. This study investigated the neuroprotective effect of exosomes secreted from human adipocyte-derived stem cells (hADSCs) on PD. MATERIALS AND METHODS hADSCs were isolated from the visceral fat tissue of individuals without PD who underwent bariatric surgery and were validated using surface markers and differentiation ability. Exosomes were isolated from the culture medium of hADSCs through serial ultracentrifugation and validated. Condensed exosomes were administered intravenously to 12-week-old MitoPark mice, transgenic parkinsonism mouse model with conditional knockout of mitochondrial transcription factor A in dopaminergic neurons, monthly for 3 months. Motor function, gait, and memory were assessed monthly, and immunohistochemical analysis of neuronal and inflammatory markers was performed at the end of the experiments. RESULTS The hADSC-derived exosome-treated mice exhibited better motor function in beam walking and gait analyses than did the untreated mice. In the novel object recognition tests, the exosome-treated mice retained better memory function. Immunohistochemical analysis revealed that although exosome treatment did not prevent the loss of dopaminergic neurons in the substantia nigra of mice, it down-regulated microglial activation and neuroinflammation in the midbrain. CONCLUSION hADSC-derived exosomes were neuroprotective in this in vivo mouse model of PD, likely because of their anti-inflammatory effect. Use of hADSC-derived exosomes may offer several beneficial effects in stem cell therapy. Since they can also be produced at an industrial level, they are a promising treatment option for PD and other neurodegenerative diseases.
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Affiliation(s)
- Lung Chan
- Department of Neurology, Shuang Ho Hospital, Taipei Medical University, New Taipei City, Taiwan, R.O.C
- Department of Neurology, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan, R.O.C
- Taipei Neuroscience Institute, Taipei Medical University, Taipei, Taiwan, R.O.C
| | - Wayne Hsu
- Division of General Surgery, Department of Surgery, Taipei Medical University Hospital, Taipei, Taiwan, R.O.C
| | - Kai-Yun Chen
- Ph.D. Program in Medical Neuroscience, College of Medical Science and Technology, Taipei Medical University, Taipei, Taiwan, R.O.C
| | - Weu Wang
- Division of General Surgery, Department of Surgery, Taipei Medical University Hospital, Taipei, Taiwan, R.O.C
- Department of Surgery, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan, R.O.C
| | - Yi-Chieh Hung
- Department of Neurosurgery, Chi-Mei Medical Center, Tainan, Taiwan, R.O.C.;
- Department of Recreation and Healthcare Management, Chia Nan University of Pharmacy and Science, Tainan, Taiwan, R.O.C
| | - Chien-Tai Hong
- Department of Neurology, Shuang Ho Hospital, Taipei Medical University, New Taipei City, Taiwan, R.O.C.;
- Department of Neurology, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan, R.O.C
- Taipei Neuroscience Institute, Taipei Medical University, Taipei, Taiwan, R.O.C
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Tang YH, Chen KY, Hu YC, Li MX, Yin R, Lu ZQ. [Predictive value of serum lactate dehydrogenase on prognosis of patients with paraquat poisoning]. Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi 2023; 41:528-533. [PMID: 37524677 DOI: 10.3760/cma.j.cn121094-20220311-00124] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 08/02/2023]
Abstract
Objective: To investigate the predictive value of serum lactate dehydrogenase (LDH) in the prognosis of patients with paraquat (PQ) poisoning, and to provide evidence for early prognosis assessment. Methods: In February 2022, 50 patients with PQ poisoning who completed serum LDH detection admitted to the Department of Emergency Medicine, the First Affiliated Hospital of Wenzhou Medical University from January 2012 to December 2021 were selected as the observation group, and 50 healthy physical examination personnel were randomly selected as the control group. Patients with PQ poisoning were divided into survival group and death group according to the prognosis, and the differences of blood routine routine, liver and kidney function and other indicators in the first admission between the two groups were compared. Multivariate logisitic regression model was established, ROC curve was drawn, and the influencing factors of prognosis of patients with PQ poisoning were analyzed. Results: Compared with the control group, the white blood cell count (WBC), total bilirubin (TBil), alanine aminotransferase (ALT), aspartate aminotransferase (AST), LDH, glucose (GLU) and creatinine (Cr) in observation group were significantly increased, while albumin (ALB) and total cholesterol (TC) were significantly decreased (P<0.05). Univariate analysis showed that WBC, elevated LDH (>247 U/L), TBil, ALT, AST and Cr were significantly different between PQ poisoning survival group and death group (P<0.05). Multivariate logisitic regression analysis showed that elevated serum LDH was an independent risk factor for the prognosis of PQ poisoning patients (OR=9.95, 95%CI: 1.34-73.82, P=0.025). The area under the ROC curve of LDH was 0.811 (95%CI: 0.692-0.930). When the cut-off value was 340 U/L, the sensitivity was 0.889 and the specificity was 0.719. Log-rank test showed that there was a statistically significant difference in survival rate between the normal LDH group and the elevated LDH group (P=0.001) . Conclusion: Serum LDH has a good predictive value in evaluating the prognosis of patients with PQ poisoning. Elevated LDH is a risk factor for poor prognosis of patients with PQ poisoning.
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Affiliation(s)
- Y H Tang
- Department of Emergency Medicine, the First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325000, China Wenzhou Key Laboratory of Emergency and Disaster Medicine, Wenzhou 325000, China
| | - K Y Chen
- Department of Emergency Medicine, the First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325000, China
| | - Y C Hu
- Department of Hand Surgery, the First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325000, China
| | - M X Li
- Department of Emergency Medicine, the First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325000, China
| | - R Yin
- Department of Emergency Medicine, the First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325000, China
| | - Z Q Lu
- Department of Emergency Medicine, the First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325000, China Wenzhou Key Laboratory of Emergency and Disaster Medicine, Wenzhou 325000, China
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Wang SH, Zhou Q, Chen KY, Ceng CQ, Zhan GD, You C, Xing Y, Zou YY, Deng HZ. Cognitive-adaptive Functioning Gap and Mediating Factors that Impact Adaptive Functioning in Chinese Preschool-aged Children with Autism Spectrum Disorder. J Autism Dev Disord 2023:10.1007/s10803-023-06029-z. [PMID: 37326789 DOI: 10.1007/s10803-023-06029-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/29/2023] [Indexed: 06/17/2023]
Abstract
This study aimed to investigate the gap between adaptive functioning and cognitive functioning, especially verbal and nonverbal intelligence quotient (IQ) in Chinese children with ASD. We systematically explored cognitive functioning, ASD severity, early signs of developmental abnormalities, and socioeconomic factors as mediating factors of adaptive functioning. We enrolled 151 children (age: 2.5?6 years) with ASD and categorized them into one group with IQ ≥ 70 and another with IQ < 70. The two groups were calibrated for age, age at diagnosis, and IQ, and the relationship of adaptive skills with vocabulary acquisition index (VAI) and nonverbal index (NVI) were separately analyzed. Results show that the gap between IQ and adaptive functioning was significant in children with ASD having IQ ≥ 70, with both VAI and NVI showing statistically significant differences (all P < 0.001). VAI correlated positively with scores for overall adaptive skills and specific domains, whereas NVI had no significant correlations with adaptive skill scores. Age of first walking unaided had an independent positive correlation (all P < 0.05) with scores of adaptive skills and specific domains. IQ-adaptive functioning gap is significant in children with ASD having IQ ≥ 70, suggesting that defining "high-functioning autism" merely on the basis of IQ is not appropriate. Verbal IQ and early signs of motor development are specific and possible predictors of adaptive functioning in children with ASD, respectively.
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Affiliation(s)
- Shi-Huan Wang
- Child Developmental and Behavioral Center, the Third Affiliated Hospital of Sun Yat-sen University, No.600, Tianhe Road, Guangzhou, 510630, China.
| | - Qing Zhou
- Department of Nursing, Third Affiliated Hospital of Sun Yat-Sen University, Guangzhou, Guangdong, 510630, China
| | - Kai-Yun Chen
- Child Developmental and Behavioral Center, the Third Affiliated Hospital of Sun Yat-sen University, No.600, Tianhe Road, Guangzhou, 510630, China
| | - Chao-Qun Ceng
- Child Developmental and Behavioral Center, the Third Affiliated Hospital of Sun Yat-sen University, No.600, Tianhe Road, Guangzhou, 510630, China
| | - Guo-Dong Zhan
- Child Developmental and Behavioral Center, the Third Affiliated Hospital of Sun Yat-sen University, No.600, Tianhe Road, Guangzhou, 510630, China
| | - Cong You
- Child Developmental and Behavioral Center, the Third Affiliated Hospital of Sun Yat-sen University, No.600, Tianhe Road, Guangzhou, 510630, China
| | - Yu Xing
- Child Developmental and Behavioral Center, the Third Affiliated Hospital of Sun Yat-sen University, No.600, Tianhe Road, Guangzhou, 510630, China
| | - Yuan-Yuan Zou
- Child Developmental and Behavioral Center, the Third Affiliated Hospital of Sun Yat-sen University, No.600, Tianhe Road, Guangzhou, 510630, China
| | - Hong-Zhu Deng
- Child Developmental and Behavioral Center, the Third Affiliated Hospital of Sun Yat-sen University, No.600, Tianhe Road, Guangzhou, 510630, China.
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10
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Lin TC, Tsai YC, Chen YA, Young TH, Wu CC, Chiang YH, Kao CH, Huang APH, Hsu YH, Chen KY, Tsai LK. Brain-derived neurotrophic factor contributes to neurogenesis after intracerebral hemorrhage: a rodent model and human study. Front Cell Neurosci 2023; 17:1170251. [PMID: 37252187 PMCID: PMC10210133 DOI: 10.3389/fncel.2023.1170251] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2023] [Accepted: 04/27/2023] [Indexed: 05/31/2023] Open
Abstract
Background and purpose Intracerebral hemorrhage (ICH) enhances neurogenesis in the subventricular zone (SVZ); however, the mechanism is not fully understood. We investigated the role of brain-derived neurotrophic factor (BDNF) in post-ICH neurogenesis in a rodent model and in patients with ICH using cerebrospinal fluid (CSF). Methods A rat model of ICH was constructed via stereotaxic injection of collagenase into the left striatum. Patients with ICH receiving an external ventricular drain were prospectively enrolled. CSF was collected from rats and patients at different post-ICH times. Primary cultured rat neural stem cells (NSCs) were treated with CSF with or without BDNF-neutralized antibody. Immunohistochemistry and immunocytochemistry were used to detect NSC proliferation and differentiation. The BDNF concentration in CSF was quantified using enzyme-linked immunosorbent assays (ELISA). Results In the rat model of ICH, the percentage of proliferating NSCs and neuroblasts in SVZ was elevated in bilateral hemispheres. The cultured rat NSCs treated with CSF from both rats and patients showed an increased capacity for proliferation and differentiation toward neuroblasts. BDNF concentration was higher in CSF collected from rats and patients with ICH than in controls. Blocking BDNF decreased the above-noted promotion of proliferation and differentiation of cultured NSCs by CSF treatment. In patients with ICH, the BDNF concentration in CSF and the neurogenesis-promoting capacity of post-ICH CSF correlated positively with ICH volume. Conclusion BDNF in CSF contributes to post-ICH neurogenesis, including NSC proliferation and differentiation toward neuroblasts in a rat model and patients with ICH.
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Affiliation(s)
- Ting-Chun Lin
- Graduate Institute of Clinical Medicine, College of Medicine, National Taiwan University, Taipei, Taiwan
| | - Yi-Chieh Tsai
- Department of Neurology and Stroke Center, National Taiwan University Hospital, Taipei, Taiwan
| | - Yun-An Chen
- Institute of Biomedical Engineering, College of Medicine and College of Engineering, National Taiwan University, Taipei, Taiwan
| | - Tai-Horng Young
- Institute of Biomedical Engineering, College of Medicine and College of Engineering, National Taiwan University, Taipei, Taiwan
| | - Chung-Che Wu
- Department of Surgery, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
- Department of Neurosurgery, Taipei Medical University Hospital, Taipei, Taiwan
- TMU Neuroscience Research Center, Taipei Medical University, Taipei, Taiwan
- Taipei Neuroscience Institute, Taipei Medical University, Taipei, Taiwan
| | - Yung-Hsiao Chiang
- Department of Surgery, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
- Department of Neurosurgery, Taipei Medical University Hospital, Taipei, Taiwan
- TMU Neuroscience Research Center, Taipei Medical University, Taipei, Taiwan
- Taipei Neuroscience Institute, Taipei Medical University, Taipei, Taiwan
| | - Chia-Hsin Kao
- Department of Neurology and Stroke Center, National Taiwan University Hospital, Taipei, Taiwan
| | - Abel Po-Hao Huang
- Department of Surgery, National Taiwan University Hospital, Taipei, Taiwan
| | - Yi-Hua Hsu
- Department of Surgery, National Taiwan University Hospital, Taipei, Taiwan
| | - Kai-Yun Chen
- TMU Neuroscience Research Center, Taipei Medical University, Taipei, Taiwan
- Ph.D. Program in Medical Neuroscience, College of Medical Science and Technology, Taipei Medical University, Taipei, Taiwan
| | - Li-Kai Tsai
- Department of Neurology and Stroke Center, National Taiwan University Hospital, Taipei, Taiwan
- Department of Neurology, National Taiwan University Hospital Hsin-Chu Branch, Hsinchu, Taiwan
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11
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Chen KY, Wang CG, Zhang Y, He RX, He JY, Zhu JM, Liang WN. [Improvement of China's legal system for public health emergency management from the perspective of lifecycle management]. Zhonghua Liu Xing Bing Xue Za Zhi 2023; 44:689-693. [PMID: 37221054 DOI: 10.3760/cma.j.cn112338-20221102-00936] [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] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
A crucial lesson gained through the pandemic preparedness and response to COVID-19 is that all measures for epidemic control must be law-based. The legal system is related not only to public health emergency management per se but also to all aspects of the institutional supporting system throughout the lifecycle. Based on the lifecycle emergency management model, this article analyses the problems of the current legal system and the potential solutions. It is suggested that the lifecycle emergency management model shall be followed to establish a more comprehensive public health legal system and to gather the intelligence and consensus of experts with different expertise, including epidemiologists, sociologists, economists, jurist and others, which will collaboratively promote the science-based legislation in the field of epidemic preparedness and response for the establishment of a comprehensive legal system for public health emergency management and with Chinese characteristics.
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Affiliation(s)
- K Y Chen
- Vanke School of Public Health, Tsinghua University, Beijing 100084, China Institute for Healthy China, Tsinghua University, Beijing 100084, China
| | - C G Wang
- Vanke School of Public Health, Tsinghua University, Beijing 100084, China Institute for Healthy China, Tsinghua University, Beijing 100084, China
| | - Y Zhang
- Vanke School of Public Health, Tsinghua University, Beijing 100084, China Institute for Healthy China, Tsinghua University, Beijing 100084, China
| | - R X He
- Vanke School of Public Health, Tsinghua University, Beijing 100084, China Institute for Healthy China, Tsinghua University, Beijing 100084, China
| | - J Y He
- Vanke School of Public Health, Tsinghua University, Beijing 100084, China
| | - J M Zhu
- Vanke School of Public Health, Tsinghua University, Beijing 100084, China Institute for Healthy China, Tsinghua University, Beijing 100084, China
| | - W N Liang
- Vanke School of Public Health, Tsinghua University, Beijing 100084, China Institute for Healthy China, Tsinghua University, Beijing 100084, China
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12
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Gao CQ, Chu ZZ, Zhang D, Xiao Y, Zhou XY, Wu JR, Yuan H, Jiang YC, Chen D, Zhang JC, Yao N, Chen KY, Hong J. Serine/threonine kinase TBK1 promotes cholangiocarcinoma progression via direct regulation of β-catenin. Oncogene 2023; 42:1492-1507. [PMID: 36928362 PMCID: PMC10154201 DOI: 10.1038/s41388-023-02651-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2022] [Revised: 02/18/2023] [Accepted: 02/23/2023] [Indexed: 03/18/2023]
Abstract
Cholangiocarcinoma (CCA) is a highly heterogeneous and metastatic malignancy with a poor prognosis even after curative hepatectomy. Studies exploring its pathogenesis and identifying effective therapeutic targets are urgently needed. In this study, we found that TANK-binding kinase 1 (TBK1), a serine/threonine-protein kinase, showed a dynamic increase during the different stages of murine spontaneous CCA carcinogenesis (hyperplasia, dysplasia, and CCA). TBK1 was upregulated in human tissues, including intrahepatic (n = 182) and extrahepatic (n = 40) CCA tissues, compared with nontumor tissues, and the elevated expression of TBK1 was positively correlated with larger tumour diameter, lymph node metastasis, and advanced TNM stage. Functional studies indicated that TBK1 promoted CCA growth and metastasis both in vitro and in vivo. TBK1 directly interacts with β-catenin, promoting its phosphorylation at the S552 site and its nuclear translocation, which further activates EMT-related transcriptional reprogramming. GSK-8612, a TBK1 inhibitor or a kinase-inactivating mutation, effectively suppresses the above processes. In addition, we found that low-density lipoprotein receptor (LDLR), which mediates the endocytosis of cholesterol, was upregulated in CCA. Therefore, we designed a cholesterol-conjugated DNA/RNA heteroduplex oligonucleotide targeting TBK1 (Cho-TBK1-HDO), which could accumulate in CCA cells via LDLR, reduce the TBK1 mRNA level and inhibit intrahepatic metastasis of CCA. Besides, in the experimental group of 182 ICC patients, high TBK1 expression combined with high nuclear β-catenin expression predicted a worse prognosis. In summary, TBK1 might serve as a potential prognostic biomarker and therapeutic target for patients with CCA.
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Affiliation(s)
- Chong-Qing Gao
- Department of Pathophysiology, School of Medicine, Jinan University, Guangzhou, Guangdong, 510630, China
| | - Zhen-Zhen Chu
- Department of Pathophysiology, School of Medicine, Jinan University, Guangzhou, Guangdong, 510630, China
| | - Di Zhang
- Department of Pathophysiology, School of Medicine, Jinan University, Guangzhou, Guangdong, 510630, China
| | - Yang Xiao
- Department of Hepatological Surgery, the First Affiliated Hospital, Jinan University, Guangzhou, Guangdong, 510632, China
| | - Xing-Yan Zhou
- School of Medicine, Jinan University, Guangzhou, Guangdong, 510632, China
| | - Jun-Ru Wu
- Department of Pathophysiology, School of Medicine, Jinan University, Guangzhou, Guangdong, 510630, China
| | - Hui Yuan
- Department of Gastroenterology, Huizhou Municipal Central Hospital, Huizhou, 516001, Guangdong, China
| | - Yu-Chuan Jiang
- Department of Hepatological Surgery, the First Affiliated Hospital, Jinan University, Guangzhou, Guangdong, 510632, China
| | - Dong Chen
- Center of Hepato-Pancreato-Biliary Surgery, the First Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510080, China
| | - Ji-Chun Zhang
- Department of Physiology, School of Medicine, Jinan University, Guangzhou, 510632, China
| | - Nan Yao
- Department of Pathophysiology, School of Medicine, Jinan University, Guangzhou, Guangdong, 510630, China.
| | - Kai-Yun Chen
- Department of General Surgery, Guangzhou Hospital Of Integrated Traditional And West Medicine, Guangzhou, Guangdong, 510632, China.
| | - Jian Hong
- Department of Pathophysiology, School of Medicine, Jinan University, Guangzhou, Guangdong, 510630, China. .,Department of Hepatological Surgery, the First Affiliated Hospital, Jinan University, Guangzhou, Guangdong, 510632, China.
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Hong CT, Chan L, Chen KY, Lee HH, Huang LK, Yang YCSH, Liu YR, Hu CJ. Rifaximin Modifies Gut Microbiota and Attenuates Inflammation in Parkinson's Disease: Preclinical and Clinical Studies. Cells 2022; 11:3468. [PMID: 36359864 PMCID: PMC9656351 DOI: 10.3390/cells11213468] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2022] [Revised: 09/30/2022] [Accepted: 10/27/2022] [Indexed: 09/15/2023] Open
Abstract
Patients with Parkinson's disease (PD) exhibit distinct gut microbiota, which may promote gut-derived inflammation. Rifaximin is a nonabsorbable antibiotic that can modify gut microbiota. The present study investigated the effect of rifaximin on gut microbiota and inflammation status in PD. The study examined the effect of long-term rifaximin treatment on in vivo transgenic PD mice (MitoPark) and short-term rifaximin treatment on patients with PD. Rifaximin treatment caused a significant change in gut microbiota in the transgenic PD mice; in particular, it reduced the relative abundance of Prevotellaceae UCG-001 and increased the relative abundance of Bacteroides, Muribaculum, and Lachnospiraceae UCG-001. Rifaximin treatment attenuated serum interleukin-1β, interleukin-6 and tumor necrosis factor-α, claudin-5 and occludin, which indicated the reduction of systemic inflammation and the protection of the blood-brain barrier integrity. The rifaximin-treated MitoPark mice exhibited better motor and memory performance than did the control mice, with lower microglial activation and increased neuronal survival in the hippocampus. In the patients with PD, 7-day rifaximin treatment caused an increase in the relative abundance of Flavonifractor 6 months after treatment, and the change in plasma proinflammatory cytokine levels was negatively associated with the baseline plasma interleukin-1α level. In conclusion, the present study demonstrated that rifaximin exerted a neuroprotective effect on the transgenic PD mice by modulating gut microbiota. We observed that patients with higher baseline inflammation possibly benefited from rifaximin treatment. With consideration for the tolerability and safety of rifaximin, randomized controlled trials should investigate the disease-modification effect of long-term treatment on select patients with PD.
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Affiliation(s)
- Chien-Tai Hong
- Department of Neurology, Shuang Ho Hospital, Taipei Medical University, New Taipei City 23561, Taiwan
- Department of Neurology, School of Medicine, College of Medicine, Taipei Medical University, Taipei 11031, Taiwan
| | - Lung Chan
- Department of Neurology, Shuang Ho Hospital, Taipei Medical University, New Taipei City 23561, Taiwan
- Department of Neurology, School of Medicine, College of Medicine, Taipei Medical University, Taipei 11031, Taiwan
| | - Kai-Yun Chen
- Ph.D. Program in Medical Neuroscience, College of Medical Science and Technology, Taipei Medical University, Taipei 11031, Taiwan
| | - Hsun-Hua Lee
- Department of Neurology, Shuang Ho Hospital, Taipei Medical University, New Taipei City 23561, Taiwan
- Department of Neurology, School of Medicine, College of Medicine, Taipei Medical University, Taipei 11031, Taiwan
| | - Li-Kai Huang
- Department of Neurology, Shuang Ho Hospital, Taipei Medical University, New Taipei City 23561, Taiwan
| | - Yu-Chen S. H. Yang
- Joint Biobank, Office of Human Research, Taipei Medical University, Taipei 11031, Taiwan
| | - Yun-Ru Liu
- Joint Biobank, Office of Human Research, Taipei Medical University, Taipei 11031, Taiwan
| | - Chaur-Jong Hu
- Department of Neurology, Shuang Ho Hospital, Taipei Medical University, New Taipei City 23561, Taiwan
- Department of Neurology, School of Medicine, College of Medicine, Taipei Medical University, Taipei 11031, Taiwan
- Ph.D. Program in Medical Neuroscience, College of Medical Science and Technology, Taipei Medical University, Taipei 11031, Taiwan
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14
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Wang Q, Chen KY, Yan J. [Artificial intelligence based prognostic studies in patients with heart failure]. Zhonghua Xin Xue Guan Bing Za Zhi 2022; 50:637-645. [PMID: 35856219 DOI: 10.3760/cma.j.cn112148-20210721-00606] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Affiliation(s)
- Q Wang
- Department of Cardiology, First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei 230001, China
| | - K Y Chen
- Department of Cardiology, First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei 230001, China
| | - J Yan
- Department of Cardiology, First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei 230001, China
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15
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Chen KY, Zhu SG, He JW, Duan XP. LncRNA CRNDE is involved in radiation resistance in hepatocellular carcinoma via modulating the SP1/PDK1 axis. Neoplasma 2022; 69:918-930. [PMID: 35652619 DOI: 10.4149/neo_2022_211230n1853] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2021] [Accepted: 05/19/2022] [Indexed: 11/08/2022]
Abstract
Hepatocellular carcinoma (HCC) is defined as a universal malignancy while radiation therapy is the effective treatment for it. This study validated the mechanism of long non-coding RNA (lncRNA) colorectal neoplasia differentially expressed gene (CRNDE) in radiation resistance in HCC. LncRNA CRNDE upregulation was detected in HCC cells. The radiation-resistant cell strains Huh7R and SNU-387R were established. After silencing lncRNA CRNDE, the cell colony formation ability, cell activity, apoptosis, cell cycles, and γ-H2AX positive rate in Huh7R and SNU-387R were detected. Silencing lncRNA CRNDE decreased the cell activity, colony formation ability, and cell number in the G2 phase and facilitated DNA damage and apoptosis. The binding relations of specificity protein 1 (SP1) with lncRNA CRNDE and 3-phosphoinositide dependent protein kinase 1 (PDK1) were verified. LncRNA CRNDE regulated PDK1 transcription by binding to transcription factor SP1. PDK1 overexpression partially reversed the inhibition of silencing lncRNA CRNDE on radiation resistance in HCC cells. The transplanted tumor mouse model was established and showed that silencing lncRNA CRNDE decreased tumor volume and weight and Ki67-positive cells in HCC mice in vivo. Collectively, lncRNA CRNDE was upregulated in HCC cells and promoted PDK1 transcription by binding to SP1, thus enhancing radiation resistance in HCC cells.
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Affiliation(s)
- Kai-Yun Chen
- Department of General Surgery, Guangdong Second Provincial General Hospital; Jinan University Affiliated Hospital, Jinan University; Guangdong Provincial Emergency Hospital, South Medical University, Guangzhou, Guangdong, China
| | - Shu-Guang Zhu
- Department of Hepatology Surgery, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Ji-Wen He
- Department of General Surgery, Guangdong Second Provincial General Hospital; Jinan University Affiliated Hospital, Jinan University; Guangdong Provincial Emergency Hospital, South Medical University, Guangzhou, Guangdong, China
| | - Xiao-Peng Duan
- Department of General Surgery, Guangdong Second Provincial General Hospital; Jinan University Affiliated Hospital, Jinan University; Guangdong Provincial Emergency Hospital, South Medical University, Guangzhou, Guangdong, China
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Tsai YR, Kim DS, Hsueh SC, Chen KY, Wu JCC, Wang JY, Tsou YS, Hwang I, Kim Y, Gil D, Jo EJ, Han BS, Tweedie D, Lecca D, Scerba MT, Selman WR, Hoffer BJ, Greig NH, Chiang YH. 3,6'- and 1,6'-Dithiopomalidomide Mitigate Ischemic Stroke in Rats and Blunt Inflammation. Pharmaceutics 2022; 14:950. [PMID: 35631536 PMCID: PMC9146426 DOI: 10.3390/pharmaceutics14050950] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2022] [Revised: 04/11/2022] [Accepted: 04/25/2022] [Indexed: 01/20/2023] Open
Abstract
(1) Background: An important concomitant of stroke is neuroinflammation. Pomalidomide, a clinically available immunomodulatory imide drug (IMiD) used in cancer therapy, lowers TNF-α generation and thus has potent anti-inflammatory actions. Well-tolerated analogs may provide a stroke treatment and allow evaluation of the role of neuroinflammation in the ischemic brain. (2) Methods: Two novel pomalidomide derivatives, 3,6'-dithiopomalidomide (3,6'-DP) and 1,6'-dithiopomalidomide (1,6'-DP), were evaluated alongside pomalidomide in a rat middle cerebral artery occlusion (MCAo) stroke model, and their anti-inflammatory actions were characterized. (3) Results: Post-MCAo administration of all drugs lowered pro-inflammatory TNF-α and IL1-β levels, and reduced stroke-induced postural asymmetry and infarct size. Whereas 3,6'- and 1,6'-DP, like pomalidomide, potently bound to cereblon in cellular studies, 3,6'-DP did not lower Ikaros, Aiolos or SALL4 levels-critical intermediates mediating the anticancer/teratogenic actions of pomalidomide and IMiDs. 3,6'-DP and 1,6'-DP lacked activity in mammalian chromosome aberration, AMES and hERG channel assays -critical FDA regulatory tests. Finally, 3,6'- and 1,6'-DP mitigated inflammation across rat primary dopaminergic neuron and microglia mixed cultures challenged with α-synuclein and mouse LPS-challenged RAW 264.7 cells. (4) Conclusion: Neuroinflammation mediated via TNF-α plays a key role in stroke outcome, and 3,6'-DP and 1,6'-DP may prove valuable as stroke therapies and thus warrant further preclinical development.
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Affiliation(s)
- Yan-Rou Tsai
- Neuroscience Research Center, Taipei Medical University, Taipei 110, Taiwan; (Y.-R.T.); (K.-Y.C.); (J.C.-C.W.); (J.-Y.W.)
- Department of Neurosurgery, Taipei Medical University Hospital, Taipei Medical University, Taipei 110, Taiwan;
| | - Dong Seok Kim
- Aevisbio Inc., Gaithersburg, MD 20878, USA;
- Aevis Bio Inc., Daejeon 34141, Korea; (I.H.); (Y.K.); (D.G.); (E.J.J.)
| | - Shih-Chang Hsueh
- Drug Design & Development Section, Translational Gerontology Branch, Intramural Research Program National Institute on Aging, NIH, Baltimore, MD 21224, USA; (S.-C.H.); (D.T.); (D.L.); (M.T.S.)
| | - Kai-Yun Chen
- Neuroscience Research Center, Taipei Medical University, Taipei 110, Taiwan; (Y.-R.T.); (K.-Y.C.); (J.C.-C.W.); (J.-Y.W.)
- The Ph.D. Program for Neural Regenerative Medicine, College of Medical Science and Technology, Taipei Medical University, Taipei 110, Taiwan
| | - John Chung-Che Wu
- Neuroscience Research Center, Taipei Medical University, Taipei 110, Taiwan; (Y.-R.T.); (K.-Y.C.); (J.C.-C.W.); (J.-Y.W.)
- Department of Neurosurgery, Taipei Medical University Hospital, Taipei Medical University, Taipei 110, Taiwan;
- Department of Surgery, College of Medicine, Taipei Medical University, Taipei 110, Taiwan
| | - Jia-Yi Wang
- Neuroscience Research Center, Taipei Medical University, Taipei 110, Taiwan; (Y.-R.T.); (K.-Y.C.); (J.C.-C.W.); (J.-Y.W.)
- Department of Neurosurgery, Taipei Medical University Hospital, Taipei Medical University, Taipei 110, Taiwan;
| | - Yi-Syue Tsou
- Department of Neurosurgery, Taipei Medical University Hospital, Taipei Medical University, Taipei 110, Taiwan;
- The Ph.D. Program for Neural Regenerative Medicine, College of Medical Science and Technology, Taipei Medical University, Taipei 110, Taiwan
- Taipei Neuroscience Institute, Taipei Medical University, Taipei 110, Taiwan
| | - Inho Hwang
- Aevis Bio Inc., Daejeon 34141, Korea; (I.H.); (Y.K.); (D.G.); (E.J.J.)
| | - Yukyung Kim
- Aevis Bio Inc., Daejeon 34141, Korea; (I.H.); (Y.K.); (D.G.); (E.J.J.)
| | - Dayeon Gil
- Aevis Bio Inc., Daejeon 34141, Korea; (I.H.); (Y.K.); (D.G.); (E.J.J.)
| | - Eui Jung Jo
- Aevis Bio Inc., Daejeon 34141, Korea; (I.H.); (Y.K.); (D.G.); (E.J.J.)
| | - Baek-Soo Han
- Research Center for Biodefence, Korea Research Institute of Bioscience and Biotechnology, Daejeon 305-806, Korea;
| | - David Tweedie
- Drug Design & Development Section, Translational Gerontology Branch, Intramural Research Program National Institute on Aging, NIH, Baltimore, MD 21224, USA; (S.-C.H.); (D.T.); (D.L.); (M.T.S.)
| | - Daniela Lecca
- Drug Design & Development Section, Translational Gerontology Branch, Intramural Research Program National Institute on Aging, NIH, Baltimore, MD 21224, USA; (S.-C.H.); (D.T.); (D.L.); (M.T.S.)
| | - Michael T. Scerba
- Drug Design & Development Section, Translational Gerontology Branch, Intramural Research Program National Institute on Aging, NIH, Baltimore, MD 21224, USA; (S.-C.H.); (D.T.); (D.L.); (M.T.S.)
| | - Warren R. Selman
- Department of Neurological Surgery, Case Western Reserve University, Cleveland, OH 44106, USA; (W.R.S.); (B.J.H.)
- University Hospitals Cleveland Medical Center, Cleveland, OH 44106, USA
| | - Barry J. Hoffer
- Department of Neurological Surgery, Case Western Reserve University, Cleveland, OH 44106, USA; (W.R.S.); (B.J.H.)
| | - Nigel H. Greig
- Drug Design & Development Section, Translational Gerontology Branch, Intramural Research Program National Institute on Aging, NIH, Baltimore, MD 21224, USA; (S.-C.H.); (D.T.); (D.L.); (M.T.S.)
| | - Yung-Hsiao Chiang
- Neuroscience Research Center, Taipei Medical University, Taipei 110, Taiwan; (Y.-R.T.); (K.-Y.C.); (J.C.-C.W.); (J.-Y.W.)
- Department of Neurosurgery, Taipei Medical University Hospital, Taipei Medical University, Taipei 110, Taiwan;
- The Ph.D. Program for Neural Regenerative Medicine, College of Medical Science and Technology, Taipei Medical University, Taipei 110, Taiwan
- Department of Surgery, College of Medicine, Taipei Medical University, Taipei 110, Taiwan
- Taipei Neuroscience Institute, Taipei Medical University, Taipei 110, Taiwan
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Chen KY, Krischuns T, Ortega Varga L, Harigua-Souiai E, Paisant S, Zettor A, Chiaravalli J, Courtney D, O’Brien A, Baker SC, Isel C, Agou F, Jacob Y, Blondel A, Naffakh N. A highly sensitive cell-based luciferase assay for high-throughput automated screening of SARS-CoV-2 nsp5/3CLpro inhibitors. bioRxiv 2021:2021.12.18.473303. [PMID: 34981051 PMCID: PMC8722588 DOI: 10.1101/2021.12.18.473303] [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] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Effective drugs against SARS-CoV-2 are urgently needed to treat severe cases of infection and for prophylactic use. The main viral protease (nsp5 or 3CLpro) represents an attractive and possibly broad-spectrum target for drug development as it is essential to the virus life cycle and highly conserved among betacoronaviruses. Sensitive and efficient high-throughput screening methods are key for drug discovery. Here we report the development of a gain-of-signal, highly sensitive cell-based luciferase assay to monitor SARS-CoV-2 nsp5 activity and show that it is suitable for high-throughput screening of compounds in a 384-well format. A benefit of miniaturisation and automation is that screening can be performed in parallel on a wild-type and a catalytically inactive nsp5, which improves the selectivity of the assay. We performed molecular docking-based screening on a set of 14,468 compounds from an in-house chemical database, selected 359 candidate nsp5 inhibitors and tested them experimentally. We identified four molecules, including the broad-spectrum antiviral merimepodib/VX-497, which show anti-nsp5 activity and inhibit SARS-CoV-2 replication in A549-ACE2 cells with IC 50 values in the 4-21 µM range. The here described assay will allow the screening of large-scale compound libraries for SARS-CoV-2 nsp5 inhibitors. Moreover, we provide evidence that this assay can be adapted to other coronaviruses and viruses which rely on a viral protease.
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Affiliation(s)
- KY Chen
- RNA Biology and Influenza Virus Unit, Institut Pasteur, CNRS UMR3569, Université de Paris, Paris, France
| | - T Krischuns
- RNA Biology and Influenza Virus Unit, Institut Pasteur, CNRS UMR3569, Université de Paris, Paris, France
| | - L Ortega Varga
- Structural Bioinformatics Unit, Institut Pasteur, Université de Paris, Paris, France
| | - E Harigua-Souiai
- Laboratory of Molecular Epidemiology and Experimental Pathology – LR16IPT04, Institut Pasteur de Tunis, Université de Tunis El Manar, Tunis, Tunisia
| | - S Paisant
- RNA Biology and Influenza Virus Unit, Institut Pasteur, CNRS UMR3569, Université de Paris, Paris, France
| | - A Zettor
- Chemogenomic and Biological Screening Platform, Institut Pasteur, Université de Paris, Paris, France
| | - J Chiaravalli
- Chemogenomic and Biological Screening Platform, Institut Pasteur, Université de Paris, Paris, France
| | - D Courtney
- RNA Biology and Influenza Virus Unit, Institut Pasteur, CNRS UMR3569, Université de Paris, Paris, France
| | - A O’Brien
- Department of Microbiology and Immunology, Loyola University Chicago, Stritch School of Medicine, Maywood, IL, USA
| | - SC Baker
- Department of Microbiology and Immunology, Loyola University Chicago, Stritch School of Medicine, Maywood, IL, USA
| | - C Isel
- RNA Biology and Influenza Virus Unit, Institut Pasteur, CNRS UMR3569, Université de Paris, Paris, France
| | - F Agou
- Chemogenomic and Biological Screening Platform, Institut Pasteur, Université de Paris, Paris, France
| | - Y Jacob
- Molecular Genetics of RNA Viruses, Institut Pasteur, CNRS UMR3569, Université de Paris, Paris, France
| | - A Blondel
- Structural Bioinformatics Unit, Institut Pasteur, Université de Paris, Paris, France
| | - N Naffakh
- RNA Biology and Influenza Virus Unit, Institut Pasteur, CNRS UMR3569, Université de Paris, Paris, France
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Ma HP, Ou JC, Chen KY, Liao KH, Kang SJ, Wang JY, Chiang YH, Wu JCC. Screening for Poor Self-Reported Sleep Quality at 12 Weeks in Post-Mild Traumatic Brain Injury Patients Using the HF-Age-Gender (HAG) Index. Brain Sci 2021; 11:1369. [PMID: 34827369 PMCID: PMC8615360 DOI: 10.3390/brainsci11111369] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2021] [Revised: 10/15/2021] [Accepted: 10/17/2021] [Indexed: 11/18/2022] Open
Abstract
To identify a screening tool for poor self-reported sleep quality at 12 weeks according to non-invasive measurements and patients' characteristics in the first week after mild traumatic brain injury (mTBI), data from 473 mTBI participants were collected and follow-ups were performed at 12 weeks. Patients with previous poor self-reported sleep quality prior to the injury were excluded. Patients were then divided into two groups at 12 weeks according to the Pittsburgh Sleep Quality Index based on whether or not they experienced poor sleep quality. The analysis was performed on personal profiles and heart rate variability (HRV) for 1 week. After analyzing the non-invasive measurements and characteristics of mTBI patients who did not complain of poor sleep quality, several factors were found to be relevant to the delayed onset of poor sleep quality, including age, gender, and HRV measurements. The HRV-age-gender (HAG) index was proposed and found to have 100% sensitivity (cut-off, 7; specificity, 0.537) to predicting whether the patient will experience poor sleep quality after mTBI at the 12-week follow-up. The HAG index helps us to identify patients with mTBI who have no sleep quality complaints but are prone to developing poor self-reported sleep quality. Additional interventions to improve sleep quality would be important for these particular patients in the future.
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Affiliation(s)
- Hon-Ping Ma
- Department of Emergency Medicine, Shuang Ho Hospital, Taipei Medical University, New Taipei City 235, Taiwan;
- Department of Emergency Medicine, School of Medicine, Taipei Medical University, Taipei 110, Taiwan
- Graduate Institute of Injury Prevention and Control, Taipei Medical University, Taipei 110, Taiwan
- Neuroscience Research Center, Taipei Medical University, Taipei 110, Taiwan; (J.-C.O.); (K.-Y.C.); (K.-H.L.); (S.-J.K.); (J.-Y.W.); (Y.-H.C.)
| | - Ju-Chi Ou
- Neuroscience Research Center, Taipei Medical University, Taipei 110, Taiwan; (J.-C.O.); (K.-Y.C.); (K.-H.L.); (S.-J.K.); (J.-Y.W.); (Y.-H.C.)
- Division of Neurosurgery, Department of Surgery, School of Medicine, College of Medicine, Taipei Medical University, Taipei 110, Taiwan
| | - Kai-Yun Chen
- Neuroscience Research Center, Taipei Medical University, Taipei 110, Taiwan; (J.-C.O.); (K.-Y.C.); (K.-H.L.); (S.-J.K.); (J.-Y.W.); (Y.-H.C.)
- Graduate Institute of Neural Regenerative Medicine, College of Medical Science and Technology, Taipei Medical University, Taipei 110, Taiwan
| | - Kuo-Hsing Liao
- Neuroscience Research Center, Taipei Medical University, Taipei 110, Taiwan; (J.-C.O.); (K.-Y.C.); (K.-H.L.); (S.-J.K.); (J.-Y.W.); (Y.-H.C.)
- Department of Neurosurgery, Wan Fang Hospital, Taipei Medical University, Taipei 116, Taiwan
| | - Shuo-Jhen Kang
- Neuroscience Research Center, Taipei Medical University, Taipei 110, Taiwan; (J.-C.O.); (K.-Y.C.); (K.-H.L.); (S.-J.K.); (J.-Y.W.); (Y.-H.C.)
- Division of Neurosurgery, Department of Surgery, School of Medicine, College of Medicine, Taipei Medical University, Taipei 110, Taiwan
| | - Jia-Yi Wang
- Neuroscience Research Center, Taipei Medical University, Taipei 110, Taiwan; (J.-C.O.); (K.-Y.C.); (K.-H.L.); (S.-J.K.); (J.-Y.W.); (Y.-H.C.)
- Division of Neurosurgery, Department of Neurosurgery, Taipei Medical University Hospital, Taipei 110, Taiwan
| | - Yung-Hsiao Chiang
- Neuroscience Research Center, Taipei Medical University, Taipei 110, Taiwan; (J.-C.O.); (K.-Y.C.); (K.-H.L.); (S.-J.K.); (J.-Y.W.); (Y.-H.C.)
- Division of Neurosurgery, Department of Surgery, School of Medicine, College of Medicine, Taipei Medical University, Taipei 110, Taiwan
- Division of Neurosurgery, Department of Neurosurgery, Taipei Medical University Hospital, Taipei 110, Taiwan
| | - John Chung-Che Wu
- Neuroscience Research Center, Taipei Medical University, Taipei 110, Taiwan; (J.-C.O.); (K.-Y.C.); (K.-H.L.); (S.-J.K.); (J.-Y.W.); (Y.-H.C.)
- Division of Neurosurgery, Department of Surgery, School of Medicine, College of Medicine, Taipei Medical University, Taipei 110, Taiwan
- Division of Neurosurgery, Department of Neurosurgery, Taipei Medical University Hospital, Taipei 110, Taiwan
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19
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Qu LX, Shi Y, Chen KY, Lu YH, Ren H. The distribution of hepatitis C virus infection in Shanghai, China: a time-spatial study. BMC Infect Dis 2021; 21:974. [PMID: 34536999 PMCID: PMC8449884 DOI: 10.1186/s12879-021-06577-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [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: 01/06/2021] [Accepted: 08/13/2021] [Indexed: 01/05/2023] Open
Abstract
BACKGROUND Shanghai, as a pilot city of China to achieve the goal of eliminating hepatitis C, its strategy of allocating medical resources is a pressing problem to be solved. This study aims to infer the time-spatial clustering patterns of HCV-infected cases, and grasp the dynamic genotype distribution of HCV, thereby inform elimination strategies of HCV with efficacy and efficiency. METHODS Reported HCV cases including their demographic information in Shanghai city from 2005 to 2018 were released from the National Infectious Disease Reporting Information System, population data at community scale, geographical layers of hospitals, communities and districts were gathered from former research. Blood samples of HCV-infected individuals were collected during 2014-2018 from 24 sentinel hospitals, HCV-antibody test, qualitative nucleic acid test and NS5B/5'UTR gene amplification were performed accordingly to determine the genotypes of the specimen. Furthermore, global and local spatial self-correlation analysis of both acute and chronic HCV infections were conducted at community scale year by year, then time-spatial clusters of acute and chronic HCV infections and HCV genotype distribution of specimen collected from sentinel hospitals by districts were mapped by using Arcmap10.1. RESULTS A total of 2631 acute HCV cases and 15,063 chronic HCV cases were reported in Shanghai from 2005 to 2018, with a peak in 2010 and 2017, respectively. The mean age of chronic HCV patients was 49.70 ± 14.55 years, 3.34 ± 0.32 years older than the acute (t = 10.55, P-value < 0.01). The spatial distribution of acute HCV infection formed one primary cluster (Relative Risk = 2.71), and the chronic formed one primary cluster and three secondary clusters with Relative Risk ranged from 1.94 to 14.42, meanwhile, an overlap of 34 communities between acute and chronic HCV clusters were found with time period spans varied from 6 to 12 years. Genotype 1 (N = 257, 49.71%) was the most prevalent HCV genotype in Shanghai, genotype 3 infections have increased in recent years. Baoshan district presented cluster of acute HCV and the highest proportion of genotype 2, Pudong new area was the cluster of chronic HCV and occupied the highest proportion of genotype 3. CONCLUSIONS Despite the low prevalence of HCV infection, it is still needed to push forward the elimination process in Shanghai, as there is a certain amount of HCV infected people waiting to be treated. The time-spatial clustering patterns and the dynamic of HCV genotype distribution together indicated a changing constitution of different transmission routes of HCV infection, thus, a focused strategy may be needed for high-risk population related to genotype 3 infection like drug users, in addition to an enforcement of the existing measures of preventing the iatrogenic and hematogenic transmission of HCV.
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Affiliation(s)
- Ling-Xiao Qu
- Department of Viral Hepatitis Control and prevention, Division of TB and HIV/AIDS Prevention, Shanghai Municipal Center for Disease Control and Prevention, Shanghai, China
| | - Yang Shi
- Department of Viral Hepatitis Control and prevention, Division of TB and HIV/AIDS Prevention, Shanghai Municipal Center for Disease Control and Prevention, Shanghai, China
| | - Kai-Yun Chen
- Department of Viral Hepatitis Control and prevention, Division of TB and HIV/AIDS Prevention, Shanghai Municipal Center for Disease Control and Prevention, Shanghai, China.,Department of Epidemiology, Fudan University School of Public Health, Shanghai, China.,Ministry of Education Key Laboratory of Public Health Safety (Fudan University), Shanghai, China
| | - Yi-Han Lu
- Department of Epidemiology, Fudan University School of Public Health, Shanghai, China.,Ministry of Education Key Laboratory of Public Health Safety (Fudan University), Shanghai, China
| | - Hong Ren
- Department of Viral Hepatitis Control and prevention, Division of TB and HIV/AIDS Prevention, Shanghai Municipal Center for Disease Control and Prevention, Shanghai, China.
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20
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Do PT, Wu CC, Chiang YH, Hu CJ, Chen KY. Mesenchymal Stem/Stromal Cell Therapy in Blood-Brain Barrier Preservation Following Ischemia: Molecular Mechanisms and Prospects. Int J Mol Sci 2021; 22:ijms221810045. [PMID: 34576209 PMCID: PMC8468469 DOI: 10.3390/ijms221810045] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2021] [Revised: 09/13/2021] [Accepted: 09/14/2021] [Indexed: 12/15/2022] Open
Abstract
Ischemic stroke is the leading cause of mortality and long-term disability worldwide. Disruption of the blood-brain barrier (BBB) is a prominent pathophysiological mechanism, responsible for a series of subsequent inflammatory cascades that exacerbate the damage to brain tissue. However, the benefit of recanalization is limited in most patients because of the narrow therapeutic time window. Recently, mesenchymal stem cells (MSCs) have been assessed as excellent candidates for cell-based therapy in cerebral ischemia, including neuroinflammatory alleviation, angiogenesis and neurogenesis promotion through their paracrine actions. In addition, accumulating evidence on how MSC therapy preserves BBB integrity after stroke may open up novel therapeutic targets for treating cerebrovascular diseases. In this review, we focus on the molecular mechanisms of MSC-based therapy in the ischemia-induced prevention of BBB compromise. Currently, therapeutic effects of MSCs for stroke are primarily based on the fundamental pathogenesis of BBB breakdown, such as attenuating leukocyte infiltration, matrix metalloproteinase (MMP) regulation, antioxidant, anti-inflammation, stabilizing morphology and crosstalk between cellular components of the BBB. We also discuss prospective studies to improve the effectiveness of MSC therapy through enhanced migration into defined brain regions of stem cells. Targeted therapy is a promising new direction and is being prioritized for extensive research.
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Affiliation(s)
- Phuong Thao Do
- International Ph.D. Program for Cell Therapy and Regeneration Medicine, College of Medicine, Taipei Medical University, Taipei 110, Taiwan;
- Department of Pediatrics, Hanoi Medical University, Hanoi 100000, Vietnam
| | - Chung-Che Wu
- Department of Neurosurgery, Taipei Medical University Hospital, Taipei 110, Taiwan; (C.-C.W.); (Y.-H.C.)
- Department of Surgery, School of Medicine, College of Medicine, Taipei Medical University, Taipei 110, Taiwan
- TMU Neuroscience Research Center, Taipei Medical University, Taipei 110, Taiwan
- Taipei Neuroscience Institute, Taipei Medical University, Taipei 110, Taiwan
| | - Yung-Hsiao Chiang
- Department of Neurosurgery, Taipei Medical University Hospital, Taipei 110, Taiwan; (C.-C.W.); (Y.-H.C.)
- Department of Surgery, School of Medicine, College of Medicine, Taipei Medical University, Taipei 110, Taiwan
- TMU Neuroscience Research Center, Taipei Medical University, Taipei 110, Taiwan
- Taipei Neuroscience Institute, Taipei Medical University, Taipei 110, Taiwan
| | - Chaur-Jong Hu
- TMU Neuroscience Research Center, Taipei Medical University, Taipei 110, Taiwan
- Taipei Neuroscience Institute, Taipei Medical University, Taipei 110, Taiwan
- Department of Neurology, School of Medicine, College of Medicine, Taipei Medical University, Taipei 110, Taiwan
- Department of Neurology and Stroke Center, Shuang Ho Hospital, Taipei Medical University, New Taipei City 235, Taiwan
- Correspondence: (C.-J.H.); (K.-Y.C.); Tel.: +886-227361661 (ext. 3032) (C.-J.H.); +886-227361661 (ext. 7602) (K.-Y.C.)
| | - Kai-Yun Chen
- TMU Neuroscience Research Center, Taipei Medical University, Taipei 110, Taiwan
- The PhD Program for Neural Regenerative Medicine, College of Medical Science and Technology, Taipei Medical University, Taipei 110, Taiwan
- Correspondence: (C.-J.H.); (K.-Y.C.); Tel.: +886-227361661 (ext. 3032) (C.-J.H.); +886-227361661 (ext. 7602) (K.-Y.C.)
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21
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Chen KY, Wang NN, Yin QW, Gu YH, Jiang K, Tu ZJ, Gong CS, Uwatoko Y, Sun JP, Lei HC, Hu JP, Cheng JG. Double Superconducting Dome and Triple Enhancement of T_{c} in the Kagome Superconductor CsV_{3}Sb_{5} under High Pressure. Phys Rev Lett 2021; 126:247001. [PMID: 34213920 DOI: 10.1103/physrevlett.126.247001] [Citation(s) in RCA: 57] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/28/2021] [Accepted: 05/18/2021] [Indexed: 05/12/2023]
Abstract
CsV_{3}Sb_{5} is a newly discovered Z_{2} topological kagome metal showing the coexistence of a charge-density-wave (CDW)-like order at T^{*}=94 K and superconductivity (SC) at T_{c}=2.5 K at ambient pressure. Here, we study the interplay between CDW and SC in CsV_{3}Sb_{5} via measurements of resistivity, dc and ac magnetic susceptibility under various pressures up to 6.6 GPa. We find that the CDW transition decreases with pressure and experience a subtle modification at P_{c1}≈0.6-0.9 GPa before it vanishes completely at P_{c2}≈2 GPa. Correspondingly, T_{c}(P) displays an unusual M-shaped double dome with two maxima around P_{c1} and P_{c2}, respectively, leading to a tripled enhancement of T_{c} to about 8 K at 2 GPa. The obtained temperature-pressure phase diagram resembles those of unconventional superconductors, illustrating an intimated competition between CDW-like order and SC. The competition is found to be particularly strong for the intermediate pressure range P_{c1}≤P≤P_{c2} as evidenced by the broad superconducting transition and reduced superconducting volume fraction. The modification of CDW order around P_{c1} has been discussed based on the band structure calculations. This work not only demonstrates the potential to raise T_{c} of the V-based kagome superconductors, but also offers more insights into the rich physics related to the electron correlations in this novel family of topological kagome metals.
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Affiliation(s)
- K Y Chen
- Beijing National Laboratory for Condensed Matter Physics and Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China
- School of Physical Sciences, University of Chinese Academy of Sciences, Beijing 100190, China
| | - N N Wang
- Beijing National Laboratory for Condensed Matter Physics and Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China
- School of Physical Sciences, University of Chinese Academy of Sciences, Beijing 100190, China
| | - Q W Yin
- Department of Physics and Beijing Key Laboratory of Opto-electronic Functional Materials & Micro-nano Devices, Renmin University of China, Beijing 100872, China
| | - Y H Gu
- Beijing National Laboratory for Condensed Matter Physics and Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China
- School of Physical Sciences, University of Chinese Academy of Sciences, Beijing 100190, China
| | - K Jiang
- Beijing National Laboratory for Condensed Matter Physics and Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China
- School of Physical Sciences, University of Chinese Academy of Sciences, Beijing 100190, China
| | - Z J Tu
- Department of Physics and Beijing Key Laboratory of Opto-electronic Functional Materials & Micro-nano Devices, Renmin University of China, Beijing 100872, China
| | - C S Gong
- Department of Physics and Beijing Key Laboratory of Opto-electronic Functional Materials & Micro-nano Devices, Renmin University of China, Beijing 100872, China
| | - Y Uwatoko
- Institute for Solid State Physics, University of Tokyo, Kashiwa, Chiba 277-8581, Japan
| | - J P Sun
- Beijing National Laboratory for Condensed Matter Physics and Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China
- School of Physical Sciences, University of Chinese Academy of Sciences, Beijing 100190, China
| | - H C Lei
- Department of Physics and Beijing Key Laboratory of Opto-electronic Functional Materials & Micro-nano Devices, Renmin University of China, Beijing 100872, China
| | - J P Hu
- Beijing National Laboratory for Condensed Matter Physics and Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China
- School of Physical Sciences, University of Chinese Academy of Sciences, Beijing 100190, China
| | - J-G Cheng
- Beijing National Laboratory for Condensed Matter Physics and Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China
- School of Physical Sciences, University of Chinese Academy of Sciences, Beijing 100190, China
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22
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Chen KY, Tsai TY, Chang CF, Ou JC, Tsai YR, Ma HP, Chiu WT, Tsai SH, Liao KH, Lin JW, Lin CM, Wu JCC, Chiang YH. Worsening of Dizziness Impairment Is Associated with Bone Marrow Kinase on Chromosome X Level in Patients after Mild Traumatic Brain Injury. J Neurotrauma 2021; 38:1445-1449. [PMID: 25747875 DOI: 10.1089/neu.2014.3691] [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] [Indexed: 11/12/2022] Open
Abstract
Over 2 million people suffer from mild traumatic brain injury (mTBI) each year. Predicting symptoms of mTBI and the characterization of those symptoms has been challenging. Biomarkers that correlate clinical symptoms to disease outcome are desired to improve understanding of the disease and optimize patient care. Bone marrow kinase on chromosome X (BMX), a member of the TEC family of nonreceptor tyrosine kinases, is up-regulated after traumatic neural injury in a rat model of mTBI. The aim of this investigation was to determine whether BMX serum concentrations can effectively be used to predict outcomes after mTBI in a clinical setting. A total of 63 patients with mTBI (Glasgow Coma Score [GCS] between 13 and 15) were included. Blood samples taken at the time of hospital admission were analyzed for BMX. Data collected included demographic and clinical variables. Outcomes were assessed using the Dizziness Handicap Inventory (DHI) questionnaire at baseline and 6 weeks postinjury. The participant was asssigned to the case group if the subject's complaints of dizziness became worse at the sixth week assessment; otherwise, the participant was assigned to the control group. A receiver operating characteristic curve was constructed to explore BMX level. Significant associations were found between serum levels of BMX and dizziness. Areas under the curve for prediction of change in DHI postinjury were 0.76 for total score, 0.69 for physical score, 0.65 for emotional score, and 0.66 for functional score. Specificities were between 0.69 and 0.77 for total score and emotional score, respectively. Therefore, BMX demonstrates potential as a candidate serum biomarker of exacerbating dizziness post-mTBI.
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Affiliation(s)
- Kai-Yun Chen
- Graduate Institute of Neural Regenerative Medicine, College of Medical Science and Technology, Taipei Medical University, Taipei, Taiwan.,Center for Neurotrauma and Neuroregeneration, Taipei Medical University, Taipei, Taiwan
| | - Tung-Yao Tsai
- Department of Emergency Medicine, Shuang-Ho Hospital, Taipei Medical University, New Taipei City, Taiwan
| | - Cheng-Fu Chang
- Department of Surgery, College of Medicine, Taipei Medical University, Taipei, Taiwan.,Department of Neurosurgery, Taipei Medical University Hospital, Taipei, Taiwan
| | - Ju-Chi Ou
- Department of Emergency Medicine, Shuang-Ho Hospital, Taipei Medical University, New Taipei City, Taiwan
| | - Yan-Rou Tsai
- Graduate Institute of Neural Regenerative Medicine, College of Medical Science and Technology, Taipei Medical University, Taipei, Taiwan.,Center for Neurotrauma and Neuroregeneration, Taipei Medical University, Taipei, Taiwan
| | - Hon-Ping Ma
- Department of Emergency Medicine, Shuang-Ho Hospital, Taipei Medical University, New Taipei City, Taiwan
| | - Wen-Ta Chiu
- Department of Neurosurgery, Taipei Medical University Hospital, Taipei, Taiwan
| | - Shin-Han Tsai
- Graduate Institute of Neural Regenerative Medicine, College of Medical Science and Technology, Taipei Medical University, Taipei, Taiwan.,Center for Neurotrauma and Neuroregeneration, Taipei Medical University, Taipei, Taiwan.,Department of Emergency Medicine, Shuang-Ho Hospital, Taipei Medical University, New Taipei City, Taiwan.,College of Public Health and Nutrition, Taipei Medical University, Taipei, Taiwan
| | - Kuo-Hsing Liao
- Department of Neurosurgery, Wan Fang Hospital, Taipei, Taiwan
| | - Jia-Wei Lin
- Department of Surgery, College of Medicine, Taipei Medical University, Taipei, Taiwan.,Department of Neurosurgery, Shuang-Ho Hospital, Taipei Medical University, New Taipei City, Taiwan
| | - Chien-Min Lin
- Department of Surgery, College of Medicine, Taipei Medical University, Taipei, Taiwan.,Department of Neurosurgery, Shuang-Ho Hospital, Taipei Medical University, New Taipei City, Taiwan
| | - John Chung-Che Wu
- Department of Surgery, College of Medicine, Taipei Medical University, Taipei, Taiwan.,Department of Neurosurgery, Taipei Medical University Hospital, Taipei, Taiwan
| | - Yung-Hsiao Chiang
- Graduate Institute of Neural Regenerative Medicine, College of Medical Science and Technology, Taipei Medical University, Taipei, Taiwan.,Center for Neurotrauma and Neuroregeneration, Taipei Medical University, Taipei, Taiwan.,Department of Surgery, College of Medicine, Taipei Medical University, Taipei, Taiwan.,Department of Neurosurgery, Taipei Medical University Hospital, Taipei, Taiwan.,Translational Research Laboratory, Cancer Center, Taipei Medical University Hospital, Taipei, Taiwan
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23
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Abstract
Objective: The purpose of this study is to analyze the surveillance data of the Integrated HCV surveillance in Shanghai and provide a scientific basis for HCV's elimination strategies. Methods: Descriptive statistical analysis and multivariate logistic regression analysis were performed using the multi-dimension results of the Integrated HCV surveillance in Shanghai from 2014 to 2019. Data related to reported HCV cases, HCV gene subtypes surveillance, HCV behavioral risk factors surveillance and HCV-antibody testing results of the community-based general population and high-risk/key populations. Results: The reported incidence rate of acute hepatitis C in Shanghai decreased from 2014 to 2019 (Z=-4.07, P<0.01); meanwhile, the reported incidence rate of chronic hepatitis C met an upward trend (Z=10.26,P<0.01), with an annual average, reported incidence rates of 0.18 per 100 000 and 8.60 per 100 000, respectively. Seven hundred forty-four blood samples were subtyped with 16 subtypes from 4 genotypes (GT1, GT2, GT3, and GT6). Among above, 1b (324 cases, 43.55%), 3a (121 cases, 16.26%), 3b (111 cases, 14.92%) and 6a (47 cases, 6.32%) were the principal subtypes. The composition of genotypes varied with decreased 1b and increased 3b and 6a. The major risk factors for HCV infection were blood transfusion (OR=4.18, 95%CI: 2.79-6.27), surgery (OR=1.63, 95%CI: 1.26-2.12), sharing syringe (OR=4.18, 95%CI: 2.75-6.34), pedicure (OR=2.01, 95%CI: 1.54-2.62), sharing razors (OR=4.09, 95%CI:1.24-13.51), and unsafe beauty practices (OR=3.15, 95%CI: 2.13-4.65). HCV antibody screening of 11 groups of high-risk/key populations showed that drug users had the highest HCV-antibody positive rate of 18.81% (1 008/5 358). The anti-HCV positive rate of the general population was 0.16% (7/4 268), which was significantly lower than that of high-risk/key populations from the same year, 2.50%(501/20 002) (χ2=94.04, P<0.01). Conclusions: Shanghai is a low-endemic area of HCV. Constantly carrying out integrated surveillance and analysis is of great value for early identification of HCV infected people and its risk factors, timely adjustment of prevention and control strategies, and eliminating the public health threat of HCV.
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Affiliation(s)
- L X Qu
- Shanghai Municipal Center for Disease Control & Prevention, Shanghai 200336, China
| | - Y Shi
- Shanghai Municipal Center for Disease Control & Prevention, Shanghai 200336, China
| | - K Y Chen
- Shanghai Municipal Center for Disease Control & Prevention, Shanghai 200336, China Department of Epidemiology, School of Public Health, Key Laboratory of Public Health Safety, Ministry of Education Fudan University, Shanghai 200032, China
| | - W Wang
- Shanghai Municipal Center for Disease Control & Prevention, Shanghai 200336, China
| | - H Ren
- Shanghai Municipal Center for Disease Control & Prevention, Shanghai 200336, China
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24
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Abstract
BACKGROUND Supplemental oxygen is often required to treat preterm infants with respiratory disorders. Experimental studies have demonstrated that hyperoxia results in the disruption of intestinal and neuronal plasticity and myelination of the brain. The association between the neonatal hyperoxia and changes of phenotypes in gut microbiota and in behaviors is not clear to date. METHODS We designed an animal experiment that C57BL/6 mice pups were reared in either room air (RA) or hyperoxia (85% O2) from postnatal days 1 to 7. From postnatal days 8 to 42, the mice were reared in RA. Intestinal microbiota was sampled from the lower gastrointestinal tract on postnatal days 7 and 42, and behavioral tests were performed and brain tissues were collected on postnatal day 42. RESULTS Neonatal hyperoxia decreased intestinal tight junction protein expression and altered intestinal bacterial composition and diversity on postnatal day 7. Among the concrete discriminative features, Proteobacteria and Epsilonbacteraeota were significantly elevated in hyperoxia-reared mice on postnatal days 7 and 42, respectively. Hyperoxia-reared mice exhibited significantly reduced sociability and interest in social novelty and impaired motor coordination compared with RA-reared mice on postnatal day 42. Hyperoxia-reared mice also exhibited significantly reduced myelination and a significantly higher number of apoptotic cells in the brain compared with RA-reared mice on postnatal day 42. CONCLUSION Neonatal hyperoxia during the first week of life altered gut microbiota and reduced brain myelination that might associate with the deficits of social interaction and motor coordination in adolescent mice.
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Affiliation(s)
- Yu-Chun Lo
- The Ph.D. Program for Neural Regenerative Medicine, College of Medical Science and Technology, Taipei Medical University, Taipei, Taiwan, ROC
| | - Kai-Yun Chen
- The Ph.D. Program for Neural Regenerative Medicine, College of Medical Science and Technology, Taipei Medical University, Taipei, Taiwan, ROC
| | - Hsiu-Chu Chou
- Department of Anatomy and Cell Biology, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan, ROC
| | - I-Hsuan Lin
- Research Center of Cancer Translational Medicine, Taipei Medical University, Taipei, Taiwan, ROC
| | - Chung-Ming Chen
- Department of Pediatrics, Taipei Medical University Hospital, Taipei, Taiwan, ROC
- Department of Pediatrics, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan, ROC
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Chen KY, Xu JX, Wang MM, Hu D, Xie F, Huang D, Chen J, Yang T, Zhang J, Song F, Huang S, Zhong T. Single probe PCR melting curve analysis MTHFR C677T SNP sites. Anal Biochem 2021; 619:114102. [PMID: 33450284 DOI: 10.1016/j.ab.2021.114102] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2020] [Revised: 01/05/2021] [Accepted: 01/07/2021] [Indexed: 10/22/2022]
Abstract
BACKGROUND The detection and analysis of methylene tetrahydrofolate reductase (MTHFR) C677T single nucleotide polymorphism (SNP) from blood samples is time-consuming and costly. We aimed to establish a method to detect these SNPs by direct whole blood PCR and without DNA extraction. METHODS Probes modified by different fluorescent groups on the same sequence were designed. Various MTHFR genotypes from direct blood PCR experiments were used to verify the similarity of the obtained and sequencing results. The SNP sites adjacent to the MTHFR C677T SNP were used to verify whether the method can accurately distinguish these sites. RESULTS The ROX probe was found to be the most suitable for this study. We tested 291 samples with 1 μL whole blood as a template, and obtained 126, 43, and 122 cases of C677C, C677T, and C677 C/T genotypes, respectively. The melting curve was consistent with the sequencing results. The detection limit was approximately 1000 white blood cells/μL. Through PCR and the melting curve method, the adjacent sites were accurately distinguished. CONCLUSION We established a reliable, simple, rapid, and low-cost direct blood PCR method for the detection of MTHFR C677T SNPs. This could also be used as a potential diagnostic tool for a variety of diseases.
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Affiliation(s)
- Kai-Yun Chen
- Department of Drug Clinical Trial, The Fourth Affiliated Hospital of Nanchang University, Nanchang, Jiangxi Province, China
| | - Jiang-Xia Xu
- Department of Laboratory Medicine, The Fourth Affiliated Hospital of Nanchang University, Nanchang, Jiangxi Province, China
| | - Meng-Meng Wang
- Department of Pathology, The Fourth Affiliated Hospital of Nanchang University, Nanchang, Jiangxi Province, China
| | - Die Hu
- The First School of Clinical Medicine, Gannan Medical University, Ganzhou, Jiangxi Province, China
| | - Fangfang Xie
- The First School of Clinical Medicine, Gannan Medical University, Ganzhou, Jiangxi Province, China
| | - Defa Huang
- The First School of Clinical Medicine, Gannan Medical University, Ganzhou, Jiangxi Province, China
| | - Jie Chen
- The First School of Clinical Medicine, Gannan Medical University, Ganzhou, Jiangxi Province, China
| | - Tong Yang
- The First School of Clinical Medicine, Gannan Medical University, Ganzhou, Jiangxi Province, China
| | | | | | | | - Tianyu Zhong
- Department of Laboratory Medicine, First Affiliated Hospital of Gannan Medical University, Ganzhou, Jiangxi Province, China.
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Hsieh YL, Su FY, Tsai LK, Huang CC, Ko YL, Su LW, Chen KY, Shih HM, Hu CM, Lee WH. NPGPx-Mediated Adaptation to Oxidative Stress Protects Motor Neurons from Degeneration in Aging by Directly Modulating O-GlcNAcase. Cell Rep 2020; 29:2134-2143.e7. [PMID: 31747588 DOI: 10.1016/j.celrep.2019.10.053] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [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: 04/03/2019] [Revised: 07/10/2019] [Accepted: 10/11/2019] [Indexed: 12/14/2022] Open
Abstract
Amyotrophic lateral sclerosis (ALS), the most common motor neuron disease, usually occurs in middle-aged people. However, the molecular basis of age-related cumulative stress in ALS pathogenesis remains elusive. Here, we found that mice deficient in NPGPx (GPx7), an oxidative stress sensor, develop ALS-like phenotypes, including paralysis, muscle denervation, and motor neurons loss. Unlike normal spinal motor neurons that exhibit elevated O-GlcNAcylation against age-dependent oxidative stress, NPGPx-deficient spinal motor neurons fail to boost O-GlcNAcylation and exacerbate ROS accumulation, leading to cell death. Mechanistically, stress-activated NPGPx inhibits O-GlcNAcase (OGA) through disulfide bonding to fine-tune global O-GlcNAcylation. Pharmacological inhibition of OGA rescues spinal motor neuron loss in aged NPGPx-deficient mice. Furthermore, expression of NPGPx in ALS patients is significantly lower than in unaffected adults. These results suggest that NPGPx modulates O-GlcNAcylation by inhibiting OGA to cope with age-dependent oxidative stress and protect motor neurons from degeneration, providing a potential therapeutic axis for ALS.
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Affiliation(s)
- Yung-Lin Hsieh
- Genomics Research Center, Academia Sinica, Taipei 115, Taiwan
| | - Fang-Yi Su
- Genomics Research Center, Academia Sinica, Taipei 115, Taiwan; Institute of Biochemistry and Molecular Biology, National Yang-Ming University, Taipei 112, Taiwan
| | - Li-Kai Tsai
- Department of Neurology, National Taiwan University Hospital, Taipei 100, Taiwan
| | | | - Yi-Ling Ko
- Genomics Research Center, Academia Sinica, Taipei 115, Taiwan
| | - Li-Wen Su
- Genomics Research Center, Academia Sinica, Taipei 115, Taiwan
| | - Kai-Yun Chen
- Graduate Institute of Neural Regenerative Medicine, College of Medical Science and Technology, Taipei Medical University, Taipei 110, Taiwan
| | - Hsiu-Ming Shih
- Institute of Biomedical Sciences, Academia Sinica, Taipei 115, Taiwan; Institute of Molecular and Genomic Medicine, National Health Research Institutes, Miaoli 350, Taiwan
| | - Chun-Mei Hu
- Genomics Research Center, Academia Sinica, Taipei 115, Taiwan
| | - Wen-Hwa Lee
- Genomics Research Center, Academia Sinica, Taipei 115, Taiwan; Department of Biological Chemistry, University of California, Irvine, Irvine, CA 92697, USA; Drug Development Center, China Medical University, Taichung 404, Taiwan.
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Stefansdottir R, Gundersen HS, Haraldsson H, Rognvaldsdottir V, Lundervold AS, Gestsdottir S, Gudmundsdottir SL, Chen KY, Brychta RJ, Johannsson E. 0337 Association Between Free-living Sleep and Memory and Attention in Healthy Adolescents. Sleep 2020. [DOI: 10.1093/sleep/zsaa056.334] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Abstract
Introduction
Sleep is important for people of all ages, especially children during development. However, adolescents often sleep less than the recommended eight hours per night. Clinical trials have found that even partial sleep deprivation- shorter than the recommended duration- can reduce cognitive function in adolescents. The association between objectively measured free-living sleep and cognition function in adolescents has not been studied.
Methods
Free-living sleep duration and sleep efficiency were measured over one week with wrist actigraphy in 199 healthy normal adolescents (140 girls, mean±SD, 17.7±0.3 years). The day after the sleep measurement concluded, sustained attention was assessed with a validated Posner cue-target task, and working memory was measured with an n-back task. Associations between sleep measures and response times during attention and memory tasks were explored with multiple linear regression adjusted for task accuracy.
Results
Over the entire week, participants’ average sleep duration was 6.2±0.7 h/night and average sleep efficiency was 88±4.4% and averages for sleep the night prior to the cognitive testing were similar. Response times on memory (1-back: 420.6±73.9, 2-back: 522.6±101.9, and 3-back: 551.8±137.2 msec) and attention tasks (valid cue: 309±31.2, invalid cue: 365.8±36, and no cue: 393.6±38.9 msec) were similar to previous reports and not associated with average weekly sleep measures. Sleep duration of the night before cognitive testing was negatively associated with response times for the most challenging memory task (3-back; p=0.02). However, sleep measures of the night before did not correlate with any of the attention task scores.
Conclusion
Our data suggests that performance on difficult memory tasks may be negatively impacted by shorter free-living sleep durations the night prior to testing, even in healthy adolescents who average less than the recommended amount of sleep. Future studies should explore whether recovery sleep or other improvements in sleep habit might mitigate such effects on memory.
Support
The Eimskip University of Iceland Fund, Icelandic Centre for Research, National Institute of Diabetes and Digestive and Kidney Diseases.
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Affiliation(s)
| | - H S Gundersen
- Western Norway University of Applied Sciences, Bergen, NORWAY
| | | | | | - A S Lundervold
- Western Norway University of Applied Sciences, Bergen, NORWAY
| | | | | | - K Y Chen
- Diabetes, Endocrinology, and Obesity Branch, National Institute of Diabetes and Digestive and Kidney Diseases, Bethesda, DC
| | - R J Brychta
- Diabetes, Endocrinology, and Obesity Branch, National Institute of Diabetes and Digestive and Kidney Diseases, Bethesda, DC
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Hsieh TH, Kuo CW, Hsieh KH, Shieh MJ, Peng CW, Chen YC, Chang YL, Huang YZ, Chen CC, Chang PK, Chen KY, Chen HY. Probiotics Alleviate the Progressive Deterioration of Motor Functions in a Mouse Model of Parkinson's Disease. Brain Sci 2020; 10:brainsci10040206. [PMID: 32244769 PMCID: PMC7226147 DOI: 10.3390/brainsci10040206] [Citation(s) in RCA: 83] [Impact Index Per Article: 20.8] [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: 02/28/2020] [Revised: 03/24/2020] [Accepted: 03/27/2020] [Indexed: 12/21/2022] Open
Abstract
Parkinson’s disease (PD) is one of the common long-term degenerative disorders that primarily affect motor systems. Gastrointestinal (GI) symptoms are common in individuals with PD and often present before motor symptoms. It has been found that gut dysbiosis to PD pathology is related to the severity of motor and non-motor symptoms in PD. Probiotics have been reported to have the ability to improve the symptoms related to constipation in PD patients. However, the evidence from preclinical or clinical research to verify the beneficial effects of probiotics for the motor functions in PD is still limited. An experimental PD animal model could be helpful in exploring the potential therapeutic strategy using probiotics. In the current study, we examined whether daily and long-term administration of probiotics has neuroprotective effects on nigrostriatal dopamine neurons and whether it can further alleviate the motor dysfunctions in PD mice. Transgenic MitoPark PD mice were chosen for this study and the effects of daily probiotic treatment on gait, beam balance, motor coordination, and the degeneration levels of dopaminergic neurons were identified. From the results, compared with the sham treatment group, we found that the daily administration of probiotics significantly reduced the motor impairments in gait pattern, balance function, and motor coordination. Immunohistochemically, a tyrosine hydroxylase (TH)-positive cell in the substantia nigra was significantly preserved in the probiotic-treated PD mice. These results showed that long-term administration of probiotics has neuroprotective effects on dopamine neurons and further attenuates the deterioration of motor dysfunctions in MitoPark PD mice. Our data further highlighted the promising possibility of the potential use of probiotics, which could be the relevant approach for further application on human PD subjects.
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Affiliation(s)
- Tsung-Hsun Hsieh
- School of Physical Therapy and Graduate Institute of Rehabilitation Science, Chang Gung University, Taoyuan 33302, Taiwan; (T.-H.H.); (C.-W.K.); (K.-H.H.); (C.-C.C.)
- Neuroscience Research Center, Chang Gung Memorial Hospital, Taoyuan 33305, Taiwan;
- Healthy Aging Research Center, Chang Gung University, Taoyuan 33302, Taiwan
| | - Chi-Wei Kuo
- School of Physical Therapy and Graduate Institute of Rehabilitation Science, Chang Gung University, Taoyuan 33302, Taiwan; (T.-H.H.); (C.-W.K.); (K.-H.H.); (C.-C.C.)
- Department of Life Science, National Taiwan University, Taipei 10617, Taiwan
| | - Kai-Hsuan Hsieh
- School of Physical Therapy and Graduate Institute of Rehabilitation Science, Chang Gung University, Taoyuan 33302, Taiwan; (T.-H.H.); (C.-W.K.); (K.-H.H.); (C.-C.C.)
| | - Meng-Jyh Shieh
- Department of Biotechnology, Tajen Institute of Technology, Pingtung 90741, Taiwan;
| | - Chih-Wei Peng
- School of Biomedical Engineering, College of Biomedical Engineering, Taipei Medical University, Taipei 11031, Taiwan;
| | - Yen-Chien Chen
- Department of Food and Nutrition, Taichung General Veteran Hospital, Taichung 40705, Taiwan;
| | - Ying-Ling Chang
- School and Graduate Institute of Traditional Chinese Medicine, College of Medicine, Chang Gung University, Taoyuan 33302, Taiwan;
- Division of Chinese Internal Medicine, Center for Traditional Chinese Medicine, Chang Gung Memorial Hospital, Taoyuan 33305, Taiwan
| | - Ying-Zu Huang
- Neuroscience Research Center, Chang Gung Memorial Hospital, Taoyuan 33305, Taiwan;
- Healthy Aging Research Center, Chang Gung University, Taoyuan 33302, Taiwan
- Department of Neurology, Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Taoyuan 33305, Taiwan;
| | - Chih-Chung Chen
- School of Physical Therapy and Graduate Institute of Rehabilitation Science, Chang Gung University, Taoyuan 33302, Taiwan; (T.-H.H.); (C.-W.K.); (K.-H.H.); (C.-C.C.)
- Healthy Aging Research Center, Chang Gung University, Taoyuan 33302, Taiwan
| | - Pi-Kai Chang
- Department of Neurology, Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Taoyuan 33305, Taiwan;
| | - Kai-Yun Chen
- Graduate Institute of Neural Regenerative Medicine, College of Medical Science and Technology, Taipei Medical University, Taipei 11031, Taiwan;
| | - Hsin-Yung Chen
- Department of Occupational Therapy and Graduate Institute of Behavioral Sciences, College of Medicine, Chang Gung University, Taoyuan 33302, Taiwan
- Department of Neurology and Dementia Center, Chang Gung Memorial Hospital, Taoyuan 33378, Taiwan
- Correspondence: ; Tel.: +886-3-2118800 (ext. 3633)
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Chen YF, Chen KY, Liu YC, Chen CM, Tsou CH, Liang HC. Criterion for optimizing high-power acousto-optically Q-switched self-Raman yellow lasers with repetition rates up to 500 kHz. Opt Lett 2020; 45:1922-1925. [PMID: 32236033 DOI: 10.1364/ol.390991] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/19/2020] [Accepted: 02/25/2020] [Indexed: 06/11/2023]
Abstract
The criterion for optimizing the high-power acousto-optically ${Q}$Q-switched self-Raman yellow laser is originally explored for the repetition rate within 100-500 kHz. The minimum allowed value for the gate-open time is experimentally verified to be determined by the pulse buildup time. By using the minimum allowed gate-open time, the highest conversion efficiency can be achieved to raise the output power by approximately 20% in comparison with the conventional results. At a repetition rate of 200 kHz, the maximum output power at 588 nm can be up to 8.8 W at an incident pump power of 26 W. Furthermore, a practical formula is developed to accurately calculate the threshold pump power as a function of the gate-open time for a given repetition rate.
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Feng XJ, Huang YT, Huang YZ, Kuo CW, Peng CW, Rotenberg A, Juan CH, Pei YC, Chen YH, Chen KY, Chiang YH, Liu HH, Wu JX, Hsieh TH. Early transcranial direct current stimulation treatment exerts neuroprotective effects on 6-OHDA-induced Parkinsonism in rats. Brain Stimul 2020; 13:655-663. [PMID: 32289694 DOI: 10.1016/j.brs.2020.02.002] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [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: 10/07/2019] [Revised: 01/30/2020] [Accepted: 02/01/2020] [Indexed: 12/16/2022] Open
Abstract
BACKGROUND Transcranial direct current stimulation (tDCS) has been proven to be able to modulate motor cortical plasticity might have potential as an alternative, adjunctive therapy for Parkinson's disease (PD). However, the efficacy of tDCS in PD is still uncertain. A disease animal model may be useful to clarify the existence of a treatment effect and to explore an effective therapeutic strategy using tDCS protocols. OBJECTIVE The current study was designed to identify the comprehensive therapeutic effects of tDCS in 6-hydroxydopamine (6-OHDA)-lesioned PD rats. METHODS Following early and long-term tDCS application (starting 24 h after PD lesion, 300 μA anodal tDCS, 20 min/day, 5 days/week) in awake PD animals for a total of 4 weeks, the effects of tDCS on motor and non-motor behaviors as well as dopaminergic neuron degeneration levels, were identified. RESULTS We found that the 4-week tDCS intervention significantly alleviated 6-OHDA-induced motor deficits in locomotor activity, akinesia, gait pattern and anxiety-like behavior, but not in apomorphine-induced rotations, recognition memory and depression-like behavior. Immunohistochemically, tyrosine hydroxylase (TH)-positive neurons in the substantia nigra were significantly preserved in the tDCS intervention group. CONCLUSIONS These results suggest that early and long-term tDCS could exert neuroprotective effects and reduce the aggravation of motor dysfunctions in a 6-OHDA-induced PD rat model. Furthermore, this preclinical model may enhance the promising possibility of the potential use of tDCS and serve as a translational platform to further identify the therapeutic mechanism of tDCS for PD or other neurological disorders.
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Affiliation(s)
- Xiao-Jun Feng
- Department of Rehabilitation Medicine, The Second Affiliated Hospital of Anhui Medical University and The Second Clinical Institute of Anhui Medical University, Hefei, China
| | - Yu-Ting Huang
- School of Physical Therapy and Graduate Institute of Rehabilitation Science, Chang Gung University, Taoyuan, Taiwan
| | - Ying-Zu Huang
- Department of Neurology, Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Taoyuan, Taiwan; Neuroscience Research Center, Chang Gung Memorial Hospital, Linkou, Taoyuan, Taiwan; Healthy Aging Research Center, Chang Gung University, Taoyuan, Taiwan
| | - Chi-Wei Kuo
- School of Physical Therapy and Graduate Institute of Rehabilitation Science, Chang Gung University, Taoyuan, Taiwan; Department of Life Science, National Taiwan University, Taipei, Taiwan
| | - Chih-Wei Peng
- School of Biomedical Engineering, College of Biomedical Engineering, Taipei Medical University, Taipei, Taiwan
| | - Alexander Rotenberg
- Department of Neurology, Boston Children's Hospital, Harvard Medical School, Boston, MA, USA
| | - Chi-Hung Juan
- Institute of Cognitive Neuroscience, National Central University, Taoyuan, Taiwan; Brain Research Center, National Central University, Taoyuan, Taiwan
| | - Yu-Cheng Pei
- Department of Physical Medicine and Rehabilitation, Chang Gung Memorial Hospital, Taoyuan, Taiwan
| | - Yuan-Hao Chen
- Department of Neurological Surgery, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan
| | - Kai-Yun Chen
- Graduate Institute of Neural Regenerative Medicine, College of Medical Science and Technology, Taipei Medical University, Taipei, Taiwan
| | - Yung-Hsiao Chiang
- Department of Surgery, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
| | - Hui-Hua Liu
- Department of Rehabilitation Medicine, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China
| | - Jian-Xian Wu
- Department of Rehabilitation Medicine, The Second Affiliated Hospital of Anhui Medical University and The Second Clinical Institute of Anhui Medical University, Hefei, China.
| | - Tsung-Hsun Hsieh
- School of Physical Therapy and Graduate Institute of Rehabilitation Science, Chang Gung University, Taoyuan, Taiwan; Neuroscience Research Center, Chang Gung Memorial Hospital, Linkou, Taoyuan, Taiwan; Healthy Aging Research Center, Chang Gung University, Taoyuan, Taiwan.
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31
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Ali AAA, Shahror RA, Chen KY. Efficient Labeling Of Mesenchymal Stem Cells For High Sensitivity Long-Term MRI Monitoring In Live Mice Brains. Int J Nanomedicine 2020; 15:97-114. [PMID: 32021167 PMCID: PMC6955624 DOI: 10.2147/ijn.s211205] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [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: 04/05/2019] [Accepted: 11/08/2019] [Indexed: 01/07/2023] Open
Abstract
BACKGROUND Regenerative medicine field is still lagging due to the lack of adequate knowledge regarding the homing of therapeutic cells towards disease sites, tracking of cells during treatment, and monitoring the biodistribution and fate of cells. Such necessities require labeling of cells with imaging agents that do not alter their biological characteristics, and development of suitable non-invasive imaging modalities. PURPOSE We aimed to develop, characterize, and standardize a facile labeling strategy for engineered mesenchymal stem cells without altering their viability, secretion of FGF21 protein (neuroprotective), and differentiation capabilities for non-invasive longitudinal MRI monitoring in live mice brains with high sensitivity. METHODS We compared the labeling efficiency of different commercial iron oxide nanoparticles towards our stem cells and determined the optimum labeling conditions using prussian blue staining, confocal microscopy, transmission electron microscopy, and flow cytometry. To investigate any change in biological characteristics of labeled cells, we tested their viability by WST-1 assay, expression of FGF21 by Western blot, and adipogenic and osteogenic differentiation capabilities. MRI contrast-enhancing properties of labeled cells were investigated in vitro using cell-agarose phantoms and in mice brains transplanted with the therapeutic stem cells. RESULTS We determined the nanoparticles that showed best labeling efficiency and least extracellular aggregation. We further optimized their labeling conditions (nanoparticles concentration and media supplementation) to achieve high cellular uptake and minimal extracellular aggregation of nanoparticles. Cell viability, expression of FGF21 protein, and differentiation capabilities were not impeded by nanoparticles labeling. Low number of labeled cells produced strong MRI signal decay in phantoms and in live mice brains which were visible for 4 weeks post transplantation. CONCLUSION We established a standardized magnetic nanoparticle labeling platform for stem cells that were monitored longitudinally with high sensitivity in mice brains using MRI for regenerative medicine applications.
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Affiliation(s)
- Ahmed Atef Ahmed Ali
- TMU Neuroscience Research Center – NeuroImage, College of Medicine, Taipei Medical University, Taipei110, Taiwan,Correspondence: Ahmed Atef Ahmed Ali Taipei Medical University, No. 250, Wuxing Street, Xinyi District, Taipei110, Taiwan ROCTel +886-2-2736-1661 ext 3215 Email
| | - Rami Ahmad Shahror
- Ph.D. Program for Neural Regenerative Medicine, College of Medical Science and Technology, Taipei Medical University and National Health Research Institutes, Taipei110, Taiwan,Center for Neurotrauma and Neuroregeneration, Taipei Medical University, Taipei110, Taiwan
| | - Kai-Yun Chen
- Ph.D. Program for Neural Regenerative Medicine, College of Medical Science and Technology, Taipei Medical University and National Health Research Institutes, Taipei110, Taiwan,Center for Neurotrauma and Neuroregeneration, Taipei Medical University, Taipei110, Taiwan
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32
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Liu LL, You J, Zhu Z, Chen KY, Hu MM, Gu H, Liu ZW, Wang ZY, Wang YH, Liu SJ, Chen LM, Liu X, Tian YL, Zhou SR, Jiang L, Wan JM. WHITE STRIPE LEAF8, encoding a deoxyribonucleoside kinase, is involved in chloroplast development in rice. Plant Cell Rep 2020; 39:19-33. [PMID: 31485784 DOI: 10.1007/s00299-019-02470-6] [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: 07/20/2019] [Accepted: 08/29/2019] [Indexed: 06/10/2023]
Abstract
WSL8 encoding a deoxyribonucleoside kinase (dNK) that catalyzes the first step in the salvage pathway of nucleotide synthesis plays an important role in early chloroplast development in rice. The chloroplast is an organelle that converts light energy into chemical energy; therefore, the normal differentiation and development of chloroplast are pivotal for plant survival. Deoxyribonucleoside kinases (dNKs) play an important role in the salvage pathway of nucleotides. However, the relationship between dNKs and chloroplast development remains elusive. Here, we identified a white stripe leaf 8 (wsl8) mutant that exhibited a white stripe leaf phenotype at seedling stage (before the four-leaf stage). The mutant showed a significantly lower chlorophyll content and defective chloroplast morphology, whereas higher reactive oxygen species than the wild type. As the leaf developed, the chlorotic mutant plants gradually turned green, accompanied by the restoration in chlorophyll accumulation and chloroplast ultrastructure. Map-based cloning revealed that WSL8 encodes a dNK on chromosome 5. Compared with the wild type, a C-to-G single base substitution occurred in the wsl8 mutant, which caused a missense mutation (Leu 349 Val) and significantly reduced dNK enzyme activity. A subcellular localization experiment showed the WSL8 protein was targeted in the chloroplast and its transcripts were expressed in various tissues, with more abundance in young leaves and nodes. Ribosome and RNA-sequencing analysis indicated that some components and genes related to ribosome biosynthesis were down-regulated in the mutant. An exogenous feeding experiment suggested that the WSL8 performed the enzymic activity of thymidine kinase, especially functioning in the salvage synthesis of thymidine monophosphate. Our results highlight that the salvage pathway mediated by the dNK is essential for early chloroplast development in rice.
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Affiliation(s)
- L L Liu
- State Key Laboratory for Crop Genetics and Germplasm Enhancement, Jiangsu Plant Gene Engineering Research Center, Nanjing Agricultural University, Nanjing, 210095, China
| | - J You
- State Key Laboratory for Crop Genetics and Germplasm Enhancement, Jiangsu Plant Gene Engineering Research Center, Nanjing Agricultural University, Nanjing, 210095, China
| | - Z Zhu
- State Key Laboratory for Crop Genetics and Germplasm Enhancement, Jiangsu Plant Gene Engineering Research Center, Nanjing Agricultural University, Nanjing, 210095, China
| | - K Y Chen
- State Key Laboratory for Crop Genetics and Germplasm Enhancement, Jiangsu Plant Gene Engineering Research Center, Nanjing Agricultural University, Nanjing, 210095, China
| | - M M Hu
- State Key Laboratory for Crop Genetics and Germplasm Enhancement, Jiangsu Plant Gene Engineering Research Center, Nanjing Agricultural University, Nanjing, 210095, China
| | - H Gu
- State Key Laboratory for Crop Genetics and Germplasm Enhancement, Jiangsu Plant Gene Engineering Research Center, Nanjing Agricultural University, Nanjing, 210095, China
| | - Z W Liu
- State Key Laboratory for Crop Genetics and Germplasm Enhancement, Jiangsu Plant Gene Engineering Research Center, Nanjing Agricultural University, Nanjing, 210095, China
| | - Z Y Wang
- State Key Laboratory for Crop Genetics and Germplasm Enhancement, Jiangsu Plant Gene Engineering Research Center, Nanjing Agricultural University, Nanjing, 210095, China
| | - Y H Wang
- State Key Laboratory for Crop Genetics and Germplasm Enhancement, Jiangsu Plant Gene Engineering Research Center, Nanjing Agricultural University, Nanjing, 210095, China
| | - S J Liu
- State Key Laboratory for Crop Genetics and Germplasm Enhancement, Jiangsu Plant Gene Engineering Research Center, Nanjing Agricultural University, Nanjing, 210095, China
| | - L M Chen
- State Key Laboratory for Crop Genetics and Germplasm Enhancement, Jiangsu Plant Gene Engineering Research Center, Nanjing Agricultural University, Nanjing, 210095, China
| | - X Liu
- State Key Laboratory for Crop Genetics and Germplasm Enhancement, Jiangsu Plant Gene Engineering Research Center, Nanjing Agricultural University, Nanjing, 210095, China
| | - Y L Tian
- State Key Laboratory for Crop Genetics and Germplasm Enhancement, Jiangsu Plant Gene Engineering Research Center, Nanjing Agricultural University, Nanjing, 210095, China
| | - S R Zhou
- State Key Laboratory for Crop Genetics and Germplasm Enhancement, Jiangsu Plant Gene Engineering Research Center, Nanjing Agricultural University, Nanjing, 210095, China
| | - L Jiang
- State Key Laboratory for Crop Genetics and Germplasm Enhancement, Jiangsu Plant Gene Engineering Research Center, Nanjing Agricultural University, Nanjing, 210095, China
| | - J M Wan
- State Key Laboratory for Crop Genetics and Germplasm Enhancement, Jiangsu Plant Gene Engineering Research Center, Nanjing Agricultural University, Nanjing, 210095, China.
- National Key Facility for Crop Gene Resources and Genetic Improvement, Institute of Crop Science, Chinese Academy of Agricultural Sciences, Beijing, 100081, China.
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Ren H, Wagner AL, Xie JY, Chen KY, Lu YH, Zheng XB, Huang T, Boulton ML, Chen XX. How Do Experts and Nonexperts Want to Promote Vaccines? Hepatitis E Vaccine as Example. Health Serv Insights 2019; 12:1178632919897276. [PMID: 31908473 PMCID: PMC6935764 DOI: 10.1177/1178632919897276] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2019] [Accepted: 12/05/2019] [Indexed: 01/22/2023] Open
Abstract
Low- and middle-income countries receive limited guidance from external entities about how to introduce vaccines. This is especially true for the Hepatitis E (HepE) vaccine, which is currently only commercially available in China. The aims of this qualitative study are to identify which attributes of the HepE disease and vaccine are considered important, and to compare desired promotion methods between different stakeholders. Stakeholders included experts (Centers for Disease Control and Prevention staff, health care providers, and researchers), and nonexperts included members of high-risk populations, HepE cases, and vaccinees. Participants’ thoughts were coded and broadly summarized. We contacted 63 persons—35 experts and 28 nonexperts. Safety and effectiveness (but not price) of the vaccine, along with severity of disease and transmission route of infection, were all listed as important attributes. Emphasizing the importance of sharing stories from cases, relying on personal experiences, staying away from statistical explanations, and using the government as a source of promotion were other points repeatedly raised by the participants. Qualitative interviews with experts and nonexperts has revealed that focusing on attributes of disease severity and susceptibility to infection, as well as vaccine safety and effectiveness within stories of cases, are preferred ways to promote the vaccine.
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Affiliation(s)
- Hong Ren
- Department of Viral Hepatitis Control and Prevention, Shanghai Municipal Center for Disease Control and Prevention, Shanghai, China
| | - Abram L Wagner
- Department of Epidemiology, School of Public Health, University of Michigan, Ann Arbor, MI, USA
| | - Jia-Yu Xie
- Department of Epidemiology, School of Public Health, University of Michigan, Ann Arbor, MI, USA
| | - Kai-Yun Chen
- Department of Viral Hepatitis Control and Prevention, Shanghai Municipal Center for Disease Control and Prevention, Shanghai, China
| | - Yi-Han Lu
- Department of Epidemiology, Key Laboratory of Public Health Safety, Ministry of Education, School of Public Health, Fudan University, Shanghai, China
| | - Xu-Bin Zheng
- Department of Epidemiology, Key Laboratory of Public Health Safety, Ministry of Education, School of Public Health, Fudan University, Shanghai, China
| | - Tao Huang
- Department of Epidemiology, School of Public Health, University of Michigan, Ann Arbor, MI, USA
| | - Matthew L Boulton
- Department of Epidemiology, School of Public Health, University of Michigan, Ann Arbor, MI, USA.,Department of Internal Medicine, Division of Infectious Diseases, Michigan Medicine, Ann Arbor, MI, USA
| | - Xiang-Xiang Chen
- Department of Epidemiology, Key Laboratory of Public Health Safety, Ministry of Education, School of Public Health, Fudan University, Shanghai, China
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Wang YJ, Wong HSC, Wu CC, Chiang YH, Chiu WT, Chen KY, Chang WC. The functional roles of IGF-1 variants in the susceptibility and clinical outcomes of mild traumatic brain injury. J Biomed Sci 2019; 26:94. [PMID: 31787098 PMCID: PMC6886173 DOI: 10.1186/s12929-019-0587-9] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2019] [Accepted: 10/24/2019] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Insulin-like growth factor 1 (IGF-1) is an important pleiotropic hormone that exerts neuroprotective and neuroreparative effects after a brain injury. However, the roles of IGF-1 variants in mild traumatic brain injury (mTBI) are not yet fully understood. This study attempted to elucidate the effects of IGF-1 variants on the risk and neuropsychiatric outcomes of mTBI. METHODS Based on 176 recruited mTBI patients and 1517 control subjects from the Taiwan Biobank project, we first compared the genotypic distributions of IGF-1 variants between the two groups. Then, we analyzed associations of IGF-1 variants with neuropsychiatric symptoms after mTBI, including anxiety, depression, dizziness, and sleep disturbances. Functional annotation of IGF-1 variants was also performed through bioinformatics databases. RESULTS The minor allele of rs7136446 was over-represented in mTBI patients compared to community-based control subjects. Patients carrying minor alleles of rs7136446 and rs972936 showed more dizziness and multiple neuropsychiatric symptoms after brain injury. CONCLUSIONS IGF-1 variants were associated with the risk and neuropsychiatric symptoms of mTBI. The findings highlight the important role of IGF-1 in the susceptibility and clinical outcomes of mTBI.
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Affiliation(s)
- Yu-Jia Wang
- Ph.D. Program for Neural Regenerative Medicine, College of Medical Science and Technology, Taipei Medical University and National Health Research Institutes, Taipei, Taiwan
| | - Henry Sung-Ching Wong
- Department of Clinical Pharmacy, School of Pharmacy, Taipei Medical University, Taipei, Taiwan
| | - Chung-Che Wu
- Department of Surgery, College of Medicine, Taipei Medical University, Taipei, Taiwan
- Department of Neurosurgery, Taipei Medical University Hospital, Taipei, Taiwan
| | - Yung-Hsiao Chiang
- Department of Surgery, College of Medicine, Taipei Medical University, Taipei, Taiwan
- Department of Neurosurgery, Taipei Medical University Hospital, Taipei, Taiwan
| | - Wen-Ta Chiu
- Institute of Injury Prevention and Control, College of Public Health and Nutrition, Taipei Medical University, Taipei, Taiwan
| | - Kai-Yun Chen
- Ph.D. Program for Neural Regenerative Medicine, College of Medical Science and Technology, Taipei Medical University and National Health Research Institutes, Taipei, Taiwan
| | - Wei-Chiao Chang
- Department of Clinical Pharmacy, School of Pharmacy, Taipei Medical University, Taipei, Taiwan
- Department of Pharmacy, Wan Fang Hospital, Taipei Medical University, Taipei, Taiwan
- Master Program for Clinical Pharmacogenomics and Pharmacoproteomics, School of Pharmacy, Taipei Medical University, Taipei, Taiwan
- Department of Medical Research, Shuang Ho Hospital, Taipei Medical University, New Taipei City, Taiwan
- Pain Research Center, Wan Fang Hospital, Taipei Medical University, Taipei, Taiwan
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35
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Shahror RA, Wu CC, Chiang YH, Chen KY. Tracking Superparamagnetic Iron Oxide-labeled Mesenchymal Stem Cells using MRI after Intranasal Delivery in a Traumatic Brain Injury Murine Model. J Vis Exp 2019. [DOI: 10.3791/60450] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022] Open
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36
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Chen JH, Huang Y, Brachi B, Yun QZ, Zhang W, Lu W, Li HN, Li WQ, Sun XD, Wang GY, He J, Zhou Z, Chen KY, Ji YH, Shi MM, Sun WG, Yang YP, Zhang RG, Abbott RJ, Sun H. Genome-wide analysis of Cushion willow provides insights into alpine plant divergence in a biodiversity hotspot. Nat Commun 2019; 10:5230. [PMID: 31745089 PMCID: PMC6864086 DOI: 10.1038/s41467-019-13128-y] [Citation(s) in RCA: 48] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2019] [Accepted: 10/22/2019] [Indexed: 01/25/2023] Open
Abstract
The Hengduan Mountains (HDM) biodiversity hotspot exhibits exceptional alpine plant diversity. Here, we investigate factors driving intraspecific divergence within a HDM alpine species Salix brachista (Cushion willow), a common component of subnival assemblages. We produce a high-quality genome assembly for this species and characterize its genetic diversity, population structure and pattern of evolution by resequencing individuals collected across its distribution. We detect population divergence that has been shaped by a landscape of isolated sky island-like habitats displaying strong environmental heterogeneity across elevational gradients, combined with population size fluctuations that have occurred since approximately the late Miocene. These factors are likely important drivers of intraspecific divergence within Cushion willow and possibly other alpine plants with a similar distribution. Since intraspecific divergence is often the first step toward speciation, the same factors can be important contributors to the high alpine species diversity in the HDM.
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Affiliation(s)
- Jia-Hui Chen
- CAS Key Laboratory for Plant Diversity and Biogeography of East Asia, Kunming Institute of Botany, Chinese Academy of Sciences, 650201, Kunming, Yunnan, P. R. China.
| | - Yuan Huang
- School of Life Sciences, Yunnan Normal University, 650092, Kunming, Yunnan, P. R. China
| | | | - Quan-Zheng Yun
- Beijing Ori-Gene Science and Technology Co., Ltd, 102206, Beijing, P.R. China
| | - Wei Zhang
- State Key Laboratory of Protein and Plant Gene Research, Peking-Tsinghua Center for Life Sciences, and School of Life Sciences, Peking University, 100871, Beijing, P.R. China
- School of Life Sciences, Peking University, 100871, Beijing, P.R. China
| | - Wei Lu
- School of Life Sciences, Peking University, 100871, Beijing, P.R. China
| | - Hong-Na Li
- Beijing Ori-Gene Science and Technology Co., Ltd, 102206, Beijing, P.R. China
| | - Wen-Qing Li
- CAS Key Laboratory for Plant Diversity and Biogeography of East Asia, Kunming Institute of Botany, Chinese Academy of Sciences, 650201, Kunming, Yunnan, P. R. China
| | - Xu-Dong Sun
- Institute of Tibetan Plateau Research at Kunming, Kunming Institute of Botany, Chinese Academy of Sciences, 650201, Kunming, Yunnan, P. R. China
- The Germplasm Bank of Wild Species, Kunming Institute of Botany, Chinese Academy of Sciences, 650201, Kunming, Yunnan, P. R. China
| | - Guang-Yan Wang
- Institute of Tibetan Plateau Research at Kunming, Kunming Institute of Botany, Chinese Academy of Sciences, 650201, Kunming, Yunnan, P. R. China
- The Germplasm Bank of Wild Species, Kunming Institute of Botany, Chinese Academy of Sciences, 650201, Kunming, Yunnan, P. R. China
| | - Jun He
- The Germplasm Bank of Wild Species, Kunming Institute of Botany, Chinese Academy of Sciences, 650201, Kunming, Yunnan, P. R. China
| | - Zhuo Zhou
- CAS Key Laboratory for Plant Diversity and Biogeography of East Asia, Kunming Institute of Botany, Chinese Academy of Sciences, 650201, Kunming, Yunnan, P. R. China
| | - Kai-Yun Chen
- CAS Key Laboratory for Plant Diversity and Biogeography of East Asia, Kunming Institute of Botany, Chinese Academy of Sciences, 650201, Kunming, Yunnan, P. R. China
| | - Yun-Heng Ji
- CAS Key Laboratory for Plant Diversity and Biogeography of East Asia, Kunming Institute of Botany, Chinese Academy of Sciences, 650201, Kunming, Yunnan, P. R. China
| | - Ming-Ming Shi
- CAS Key Laboratory for Plant Diversity and Biogeography of East Asia, Kunming Institute of Botany, Chinese Academy of Sciences, 650201, Kunming, Yunnan, P. R. China
| | - Wen-Guang Sun
- CAS Key Laboratory for Plant Diversity and Biogeography of East Asia, Kunming Institute of Botany, Chinese Academy of Sciences, 650201, Kunming, Yunnan, P. R. China
| | - Yong-Ping Yang
- Institute of Tibetan Plateau Research at Kunming, Kunming Institute of Botany, Chinese Academy of Sciences, 650201, Kunming, Yunnan, P. R. China.
- The Germplasm Bank of Wild Species, Kunming Institute of Botany, Chinese Academy of Sciences, 650201, Kunming, Yunnan, P. R. China.
| | - Ren-Gang Zhang
- Beijing Ori-Gene Science and Technology Co., Ltd, 102206, Beijing, P.R. China
| | - Richard J Abbott
- School of Biology, University of St. Andrews, St. Andrews, Fife, KY16 9TH, UK.
| | - Hang Sun
- CAS Key Laboratory for Plant Diversity and Biogeography of East Asia, Kunming Institute of Botany, Chinese Academy of Sciences, 650201, Kunming, Yunnan, P. R. China.
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Wang YJ, Chang WC, Wu CC, Chiang YH, Chiu WT, Chen KY, Chang WP. Increased short- and long-term risk of sleep disorders in people with traumatic brain injury. Neuropsychol Rehabil 2019; 31:211-230. [PMID: 31696782 DOI: 10.1080/09602011.2019.1682622] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
This study aims to evaluate the relationship between traumatic brain injury (TBI) and sleep disorders (SDs). We first initiated a questionnaire-based clinical survey to assess sleep problems in the early stage after a TBI, followed by a population-based cohort study to evaluate the long-term risk of SDs in TBI patients. For short-term clinical survey, mild (m)TBI patients and healthy controls were recruited to evaluate the sleep quality and daytime sleepiness using the Pittsburg Sleep Quality Index (PSQI) and Epworth Sleepiness Scale (ESS) within two weeks after a TBI. For long-term observation, a 5-year nationwide population-based cohort study that utilized a large administrative database was conducted. In the short-term survey, 236 mTBI patients and 223 controls were analyzed. Total scores of the PSQI and ESS were significantly higher in mTBI patients than in the controls. In the long-term cohort study, 6932 TBI cases and 34,660 matched controls were included. TBI cases had a 1.36-fold greater risk of SDs compared to the non-TBI controls during the 5-year follow-up period. Results showed that patients with TBI had a significantly higher risk of SDs than did controls both in the early stage and during a 5-year follow-up period.
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Affiliation(s)
- Yu-Jia Wang
- Ph.D. Program for Neural Regenerative Medicine, College of Medical Science and Technology, Taipei Medical University and National Health Research Institutes, Taipei, Taiwan
| | - Wei-Chiao Chang
- Master Program for Clinical Pharmacogenomics and Pharmacoproteomics, School of Pharmacy, Taipei Medical University, Taipei, Taiwan.,Department of Clinical Pharmacy, School of Pharmacy, Taipei Medical University, Taipei, Taiwan.,Department of Pharmacy, Wan Fang Hospital, Taipei Medical University, Taipei, Taiwan.,Pain Research Center, Wan Fang Hospital, Taipei Medical University, Taipei, Taiwan.,Department of Medical Research, Shuang Ho Hospital, Taipei Medical University, New Taipei City, Taiwan
| | - Chung-Che Wu
- Department of Neurosurgery, Taipei Medical University Hospital, Taipei, Taiwan
| | - Yung-Hsiao Chiang
- Ph.D. Program for Neural Regenerative Medicine, College of Medical Science and Technology, Taipei Medical University and National Health Research Institutes, Taipei, Taiwan.,Department of Neurosurgery, Taipei Medical University Hospital, Taipei, Taiwan
| | - Wen-Ta Chiu
- Graduate Institute of Injury Prevention and Control, College of Public Health, Taipei Medical University, Taipei, Taiwan
| | - Kai-Yun Chen
- Ph.D. Program for Neural Regenerative Medicine, College of Medical Science and Technology, Taipei Medical University and National Health Research Institutes, Taipei, Taiwan
| | - Wei-Pin Chang
- School of Health Care Administration, Taipei Medical University, Taipei, Taiwan
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38
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Chen XX, Wagner AL, Zheng XB, Xie JY, Boulton ML, Chen KY, Ren H, Lu YH. Hepatitis E vaccine in China: Public health professional perspectives on vaccine promotion and strategies for control. Vaccine 2019; 37:6566-6572. [DOI: 10.1016/j.vaccine.2019.07.067] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2019] [Revised: 06/06/2019] [Accepted: 07/18/2019] [Indexed: 02/07/2023]
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Shahror RA, Linares GR, Wang Y, Hsueh SC, Wu CC, Chuang DM, Chiang YH, Chen KY. Transplantation of Mesenchymal Stem Cells Overexpressing Fibroblast Growth Factor 21 Facilitates Cognitive Recovery and Enhances Neurogenesis in a Mouse Model of Traumatic Brain Injury. J Neurotrauma 2019; 37:14-26. [PMID: 31298621 DOI: 10.1089/neu.2019.6422] [Citation(s) in RCA: 43] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Traumatic brain injury (TBI) is a progressive and complex pathological condition that results in multiple adverse consequences, including impaired learning and memory. Transplantation of mesenchymal stem cells (MSCs) has produced limited benefits in experimental TBI models. Fibroblast growth factor 21 (FGF21) is a novel metabolic regulator that has neuroprotective effects, promotes remyelination, enhances angiogenesis, and elongates astrocytic processes. In this study, MSCs were genetically engineered to overexpress FGF21 in order to improve their efficacy in TBI. MSCs overexpressing FGF21 (MSC-FGF21) were transplanted to mouse brain by intracerebroventricular injection 24 h after TBI was induced by controlled cortical impact (CCI). Hippocampus-dependent spatial learning and memory, assessed by the Morris water maze test, was markedly decreased 3-4 weeks after TBI, a deficit that was robustly recovered by treatment with MSC-FGF21, but not MSC-mCherry control. Hippocampus-independent learning and memory, assessed by the novel object recognition test, was also impaired; these effects were blocked by treatment with both MSC-FGF21 and MSC-mCherry control. FGF21 protein levels in the ipsilateral hippocampus were drastically reduced 4 weeks post-TBI, a loss that was restored by treatment with MSC-FGF21, but not MSC-mCherry. MSC-FGF21 treatment also partially restored TBI-induced deficits in neurogenesis and maturation of immature hippocampal neurons, whereas MSC-mCherry was less effective. Finally, MSC-FGF21 treatment also normalized TBI-induced impairments in dendritic arborization of hippocampal neurons. Taken together, the results indicate that MSC-FGF21 treatment significantly improved TBI-induced spatial memory deficits, impaired hippocampal neurogenesis, and abnormal dendritic morphology. Future clinical investigations using MSC-FGF21 to improve post-TBI outcomes are warranted.
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Affiliation(s)
- Rami Ahmad Shahror
- Ph.D. Program for Neural Regenerative Medicine, College of Medical Science and Technology, Taipei Medical University and National Health Research Institutes, Taipei, Taiwan.,TMU Neuroscience Research Center, Taipei Medical University, Taipei, Taiwan
| | - Gabriel R Linares
- Intramural Research Program, National Institute of Mental Health, National Institutes of Health, Bethesda, Maryland.,Department of Stem Cell Biology and Regenerative Medicine, Keck School of Medicine, University of Southern California, Los Angeles, California
| | - Yun Wang
- Center for Neuropsychiatric Research, National Health Research Institutes, Miaoli, Taiwan
| | - Shih-Chang Hsueh
- Ph.D. Program for Neural Regenerative Medicine, College of Medical Science and Technology, Taipei Medical University and National Health Research Institutes, Taipei, Taiwan.,TMU Neuroscience Research Center, Taipei Medical University, Taipei, Taiwan
| | - Chung-Che Wu
- TMU Neuroscience Research Center, Taipei Medical University, Taipei, Taiwan.,Department of Neurosurgery, Taipei Medical University Hospital, Taipei, Taiwan.,Department of Surgery, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
| | - De-Maw Chuang
- Ph.D. Program for Neural Regenerative Medicine, College of Medical Science and Technology, Taipei Medical University and National Health Research Institutes, Taipei, Taiwan.,Intramural Research Program, National Institute of Mental Health, National Institutes of Health, Bethesda, Maryland
| | - Yung-Hsiao Chiang
- Ph.D. Program for Neural Regenerative Medicine, College of Medical Science and Technology, Taipei Medical University and National Health Research Institutes, Taipei, Taiwan.,TMU Neuroscience Research Center, Taipei Medical University, Taipei, Taiwan.,Department of Neurosurgery, Taipei Medical University Hospital, Taipei, Taiwan.,Department of Surgery, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
| | - Kai-Yun Chen
- Ph.D. Program for Neural Regenerative Medicine, College of Medical Science and Technology, Taipei Medical University and National Health Research Institutes, Taipei, Taiwan.,TMU Neuroscience Research Center, Taipei Medical University, Taipei, Taiwan
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40
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Chen KY, Shahror RA, Wu CC, Chiang YH. Abstract 701: Mesenchymal Stem Cells Overexpressing FGF21 Improve Functional Recovery After Traumatic Brain Injury. Circ Res 2019. [DOI: 10.1161/res.125.suppl_1.701] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Traumatic Brain Injury (TBI) is a progressive and complex brain injury that results in many adverse and long term neurological consequences. Fibroblast growth factor 21 (FGF21) is a novel metabolic regulator that has emerged as a therapeutic agent for the treatment of neurodegenerative diseases and brain injuries, as it has been shown to exhibit neuroprotective effects, promote remyelination, enhances angiogenesis, and to stimulate the neurite growth of glia-like cells. In this study, MSCs were genetically engineered to overexpress fibroblast growth factor 21 (FGF21) in order to improve their efficacy in TBI. MSCs overexpressing FGF21 (MSC-FGF21) were transplanted to mouse brain by intracerebroventricular (ICV) injection 24 hours after TBI. Spatial learning and memory tests were performed to examine the effects of MSC-FGF21 at 24 hours following controlled cortical impact (CCI) insult in TBI mice model. We found the FGF21 levels were reduced in the hippocampus of vehicle- treated group mice and that MSC-FGF21 treatment restored the FGF21 level significantly. MSC-FGF21 treatment significantly reduced spatial learning/memory decline at 21 days post injury as measured in the Morris water maze test. Both MSC-mCherry (vehicle control) and MSC-FGF21 treatments induced a significant improvement in short term memory formation as determined by the novel object recognition test (NOR) after 14 days of injury. In addition, MSC-FGF21treatment significantly increased the impaired neurogenesis and restored the dendritic process and morphology of immature neurons in the hippocampal dentate gyrus (DG). Taken together, these data provide compelling evidence that MSC-FGF21 treatment promotes neurogenesis and hippocampal neuroplasticity following TBI insult.
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Lai JH, Chen KY, Wu JCC, Olson L, Brené S, Huang CZ, Chen YH, Kang SJ, Ma KH, Hoffer BJ, Hsieh TH, Chiang YH. Voluntary exercise delays progressive deterioration of markers of metabolism and behavior in a mouse model of Parkinson's disease. Brain Res 2019; 1720:146301. [PMID: 31226324 DOI: 10.1016/j.brainres.2019.146301] [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] [Subscribe] [Scholar Register] [Received: 05/08/2019] [Revised: 06/15/2019] [Accepted: 06/17/2019] [Indexed: 12/21/2022]
Abstract
Although a good deal is known about the genetics and pathophysiology of Parkinson's disease (PD), and information is emerging about its cause, there are no pharmacological treatments shown to have a significant, sustained capacity to prevent or attenuate the ongoing neurodegenerative processes. However, there is accumulating clinical results to suggest that physical exercise is such a treatment, and studies of animal models of the dopamine (DA) deficiency associated with the motor symptoms of PD further support this hypothesis. Exercise is a non-pharmacological, economically practical, and sustainable intervention with little or no risk and with significant additional health benefits. In this study, we investigated the long-term effects of voluntary exercise on motor behavior and brain biochemistry in the transgenic MitoPark mouse PD model with progressive degeneration of the DA systems caused by DAT-driven deletion of the mitochondrial transcription factor TFAM in DA neurons. We found that voluntary exercise markedly improved behavioral function, including overall motor activity, narrow beam walking, and rotarod performance. There was also improvement of biochemical markers of nigrostriatal DA input. This was manifested by increased levels of DA measured by HPLC, and of the DA membrane transporter measured by PET. Moreover, exercise increased oxygen consumption and, by inference, ATP production via oxidative phosphorylation. Thus, exercise augmented aerobic mitochondrial oxidative metabolism vs glycolysis in the nigrostriatal system. We conclude that there are clear-cut physiological mechanisms for beneficial effects of exercise in PD.
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Affiliation(s)
- Jing-Huei Lai
- Core Laboratory of Neuroscience, Office of R&D, Taipei Medical University, Taipei, Taiwan; Center for Neurotrauma and Neuroregeneration, Taipei Medical University, Taipei, Taiwan
| | - Kai-Yun Chen
- Center for Neurotrauma and Neuroregeneration, Taipei Medical University, Taipei, Taiwan; Graduate Institute of Neural Regenerative Medicine, College of Medical Science and Technology, Taipei Medical University, Taipei, Taiwan
| | - John Chung-Che Wu
- Center for Neurotrauma and Neuroregeneration, Taipei Medical University, Taipei, Taiwan; Department of Surgery, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan; Department of Neurosurgery, Taipei Medical University Hospital, Taipei, Taiwan
| | - Lars Olson
- Department of Neuroscience, Karolinska Institutet, SE-171 77 Stockholm, Sweden
| | - Stefan Brené
- Department of Neuroscience, Karolinska Institutet, SE-171 77 Stockholm, Sweden
| | - Chi-Zong Huang
- Center for Neurotrauma and Neuroregeneration, Taipei Medical University, Taipei, Taiwan; Graduate Institute of Neural Regenerative Medicine, College of Medical Science and Technology, Taipei Medical University, Taipei, Taiwan
| | - Yen-Hua Chen
- Center for Neurotrauma and Neuroregeneration, Taipei Medical University, Taipei, Taiwan; Department of Surgery, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
| | - Shuo-Jhen Kang
- Center for Neurotrauma and Neuroregeneration, Taipei Medical University, Taipei, Taiwan; Department of Surgery, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
| | - Kuo-Hsing Ma
- Department of Biology and Anatomy, National Defense Medical Center, Taipei, Taiwan
| | - Barry J Hoffer
- Department of Neurosurgery, Case Western Reserve University, School of Medicine, Cleveland, OH, USA
| | - Tsung-Hsun Hsieh
- Department of Physical Therapy and Graduate Institute of Rehabilitation Science, College of Medicine, Chang Gung University, Taoyuan, Taiwan
| | - Yung-Hsiao Chiang
- Core Laboratory of Neuroscience, Office of R&D, Taipei Medical University, Taipei, Taiwan; Center for Neurotrauma and Neuroregeneration, Taipei Medical University, Taipei, Taiwan; Department of Surgery, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan; Department of Neurosurgery, Taipei Medical University Hospital, Taipei, Taiwan.
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Tsai YR, Tweedie D, Navas-Enamorado I, Scerba MT, Chang CF, Lai JH, Wu JCC, Chen YH, Kang SJ, Hoffer BJ, de Cabo R, Greig NH, Chiang YH, Chen KY. Pomalidomide Reduces Ischemic Brain Injury in Rodents. Cell Transplant 2019; 28:439-450. [PMID: 31094216 PMCID: PMC6628558 DOI: 10.1177/0963689719850078] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023] Open
Abstract
Stroke is a leading cause of death and severe disability worldwide. After cerebral
ischemia, inflammation plays a central role in the development of permanent neurological
damage. Reactive oxygen species (ROS) are involved in the mechanism of post-ischemic
inflammation. The activation of several inflammatory enzymes produces ROS, which
subsequently suppress mitochondrial activity, leading to further tissue damage.
Pomalidomide (POM) is a clinically available immunomodulatory and anti-inflammatory agent.
Prior cellular studies demonstrate that POM can mitigate oxidative stress and lower levels
of pro-inflammatory cytokines, particularly TNF-α, which plays a prominent role in
ischemic stroke-induced brain damage and functional deficits. To evaluate the potential
value of POM in cerebral ischemia, POM was initially administered to transgenic mice
chronically over-expressing TNF-α surfactant protein (SP)-C promoter (SP-C/TNF-α mice) to
assess whether systemically administered drug could lower systemic TNF-α level. POM
significantly lowered serum levels of TNF-α and IL-5. Pharmacokinetic studies were then
undertaken in mice to evaluate brain POM levels following systemic drug administration.
POM possessed a brain/plasma concentration ratio of 0.71. Finally, rats were subjected to
transient middle cerebral artery occlusion (MCAo) for 60 min, and subsequently treated
with POM 30 min thereafter to evaluate action on cerebral ischemia. POM reduced the
cerebral infarct volume in MCAo-challenged rats and improved motor activity, as evaluated
by the elevated body swing test. POM’s neuroprotective actions on ischemic injury
represent a potential therapeutic approach for ischemic brain damage and related
disorders, and warrant further evaluation.
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Affiliation(s)
- Yan-Rou Tsai
- 1 The PhD Program for Neural Regenerative Medicine, College of Medical Science and Technology, Taipei Medical University, Taipei.,2 Center for Neurotrauma and Neuroregeneration, Taipei Medical University, Taipei
| | - David Tweedie
- 3 Translational Gerontology Branch, Intramural Research Program, National Institute on Aging, National Institutes of Health, Baltimore, MD, USA
| | - Ignacio Navas-Enamorado
- 3 Translational Gerontology Branch, Intramural Research Program, National Institute on Aging, National Institutes of Health, Baltimore, MD, USA
| | - Michael T Scerba
- 3 Translational Gerontology Branch, Intramural Research Program, National Institute on Aging, National Institutes of Health, Baltimore, MD, USA
| | - Cheng-Fu Chang
- 2 Center for Neurotrauma and Neuroregeneration, Taipei Medical University, Taipei.,4 Department of Neurosurgery, Taipei City Hospital, Zhongxiao Branch, Taipei.,5 Department of Surgery, College of Medicine, Taipei Medical University, Taipei
| | - Jing-Huei Lai
- 2 Center for Neurotrauma and Neuroregeneration, Taipei Medical University, Taipei.,5 Department of Surgery, College of Medicine, Taipei Medical University, Taipei
| | - John Chung-Che Wu
- 2 Center for Neurotrauma and Neuroregeneration, Taipei Medical University, Taipei.,5 Department of Surgery, College of Medicine, Taipei Medical University, Taipei.,6 Department of Neurosurgery, Taipei Medical University Hospital, Taipei
| | - Yen-Hua Chen
- 2 Center for Neurotrauma and Neuroregeneration, Taipei Medical University, Taipei
| | - Shuo-Jhen Kang
- 2 Center for Neurotrauma and Neuroregeneration, Taipei Medical University, Taipei.,5 Department of Surgery, College of Medicine, Taipei Medical University, Taipei
| | - Barry J Hoffer
- 2 Center for Neurotrauma and Neuroregeneration, Taipei Medical University, Taipei.,7 Department of Neurosurgery, Case Western Reserve University, School of Medicine, Cleveland, OH, USA
| | - Rafael de Cabo
- 3 Translational Gerontology Branch, Intramural Research Program, National Institute on Aging, National Institutes of Health, Baltimore, MD, USA
| | - Nigel H Greig
- 3 Translational Gerontology Branch, Intramural Research Program, National Institute on Aging, National Institutes of Health, Baltimore, MD, USA
| | - Yung-Hsiao Chiang
- 1 The PhD Program for Neural Regenerative Medicine, College of Medical Science and Technology, Taipei Medical University, Taipei.,2 Center for Neurotrauma and Neuroregeneration, Taipei Medical University, Taipei.,5 Department of Surgery, College of Medicine, Taipei Medical University, Taipei.,6 Department of Neurosurgery, Taipei Medical University Hospital, Taipei
| | - Kai-Yun Chen
- 1 The PhD Program for Neural Regenerative Medicine, College of Medical Science and Technology, Taipei Medical University, Taipei.,2 Center for Neurotrauma and Neuroregeneration, Taipei Medical University, Taipei
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43
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Wang RR, Lv ZM, Dan YP, Chen KY, Zhang C. Effects of acarbose and siglitine on blood glucose fluctuation and islet β-cell function in patients with type 2 diabetes mellitus. J BIOL REG HOMEOS AG 2019; 33:365-374. [PMID: 30972995] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
The effects of acarbose and sitagliptin on blood glucose fluctuation and islet β-cell function in patients with type 2 diabetes mellitus (T2DM) were studied. One hundred and three patients with poorly controlled T2DM with insulin aspart 30 were selected and randomly divided into three groups: group A [continuous subcutaneous insulin infusion (CSII) treatment group], group B (CSII combined with acarbose treatment), group C (CSII combined with sitagliptin treatment). The treatment lasted for two weeks and the clinical indicators in the three groups were measured. The insulin dosage was adjusted according to the blood glucose statuses of the three groups of patients. In the final three days, 72 h of continuous glucose monitoring (CGM) were carried out, and the OGTT test was performed again. The results showed that the MODD (absolute means of daily difference), intra-day blood glucose fluctuation indices [(24 h MBG (mean blood glucose), LAGE (largest amplitude of glycemic excursions) and MAGE (average blood glucose fluctuation)] and postprandial blood glucose fluctuation indices [PGS (postprandial glucose spike), △t, PPGE (postprandial glucose excursion) and T (time) total] in group C and group B were significantly lower than those in group A. Compared with group B, the difference in blood glucose fluctuation indices in group C was not statistically significant (P>0.05). The HOMA-islet (homeostasis model assessment of islet) (CP-DM) index and FC-P (Fasting c-peptide) levels in group C and group B were significantly higher than those in group A (P less than 0.01). The HOMA-IR (CP) index of groups B and C was significantly lower than that of group A (P less than 0.01), and there was no statistically significant difference between groups B and C (P less than 0.05). Sitagliptin combined with intensive insulin pump therapy can reduce blood glucose fluctuation throughout the day, reduce insulin dosage, improve islet B cell function and reduce hypoglycemia better than intensive insulin pump therapy alone.
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Affiliation(s)
- R R Wang
- Department of Endocrinology, Jiamusi Central Hospital of Heilongjiang Province, Jiamusi, Heilongjiang, China
| | - Z M Lv
- Department of Endocrinology, The First Affiliated Hospital of Jiamusi University, Jiamusi, Heilongjiang, China
| | - Y P Dan
- Department of Endocrinology, The First Affiliated Hospital of Jiamusi University, Jiamusi, Heilongjiang, China
| | - K Y Chen
- Department of Endocrinology, The First Affiliated Hospital of Jiamusi University, Jiamusi, Heilongjiang, China
| | - C Zhang
- Department of Endocrinology, The First Affiliated Hospital of Jiamusi University, Jiamusi, Heilongjiang, China
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44
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Lee HH, Ma HP, Ou JC, Ong JR, Chen KY, Wu CC, Chiu WT, Liao KH, Lin CM, Lin SY, Wu D, Huang YH, Wang YH, Hu CJ, Hong CT. Association Between Acid-Sensing Ion Channel 3 Gene Variants and Balance Impairment in People With Mild Traumatic Brain Injury. Front Neurol 2019; 10:88. [PMID: 30804886 PMCID: PMC6378888 DOI: 10.3389/fneur.2019.00088] [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] [Received: 09/18/2018] [Accepted: 01/22/2019] [Indexed: 11/13/2022] Open
Abstract
Introduction: Dizziness and balance impairment are common symptoms of mild traumatic brain injury (mTBI). Acid-sensing ion channel 3 (ASIC3) is expressed in the vestibular and proprioceptive systems and associated with balance functions. However, whether the genetic variants of ASIC3 are associated with people who suffer dizziness and balance impairment after mTBI remained unknown. Materials and methods: A total of 200 people with mTBI and 109 non-mTBI controls were recruited. Dizziness, balance functions, and the ability to perform daily activities were assessed by Dizziness Handicap Inventory (DHI), and objective balance functions were investigated by the postural stability test. Three diseases-related genetic variants of ASIC3 were determined through polymerase chain reaction and followed by restriction fragment length polymorphism. The Student's t-test and Mann-Whitney U-test were used for normal and abnormal distributed data, respectively. The regression was applied to adjust gender and age. The normality of continuous data was evaluated by Shapiro-Wilk test. Results: In the mTBI people, the rs2288645-A allele carriers exhibited a significantly worse physical domain DHI score (A-allele carriers: 11.39 ± 8.42, non-A carriers: 8.76 ± 7.87, p = 0.03). The rs4148855-GTC deletion carriers an exhibited significantly worse overall postural stability (GTC deletion carriers: 0.53 ± 0.33, non-carriers: 0.46 ± 0.20, p = 0.03). In the controls, rs2288646-A allele carriers were significant worse in the medial-to-lateral postural stability (A-allele carriers: 0.31 ± 0.17, non-A carriers: 0.21 ± 0.10, p = 0.01). Conclusion: The present study demonstrated that ASIC3 genetic variants were associated with certain aspects of balance functions and dizziness questionnaires in people of mTBI and non-mTBI. It provides a possible evidence that ASIC3 could be a new target for the management of the balancing disorders. However, further investigations are warranted to elucidate the underlying mechanisms and clinical significance.
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Affiliation(s)
- Hsun-Hua Lee
- College of Medicine, Graduate Institute of Clinical Medicine, Taipei Medical University, Taipei, Taiwan.,Department of Neurology, Shuang Ho Hospital, Taipei Medical University, New Taipei City, Taiwan.,Department of Neurology, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan.,Dizziness and Balance Disorder Center, Taipei Medical University-Shuang Ho Hospital, New Taipei City, Taiwan
| | - Hon-Ping Ma
- Department of Emergency Medicine, Shuang Ho Hospital, Taipei Medical University, New Taipei City, Taiwan.,Department of Emergency Medicine, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan.,College of Public Health and Nutrition, Graduate Institute of Injury Prevention and Control, Taipei Medical University, Taipei, Taiwan
| | - Ju-Chi Ou
- Department of Emergency Medicine, Shuang Ho Hospital, Taipei Medical University, New Taipei City, Taiwan
| | - Jiann Ruey Ong
- Department of Emergency Medicine, Shuang Ho Hospital, Taipei Medical University, New Taipei City, Taiwan.,Department of Emergency Medicine, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
| | - Kai-Yun Chen
- College of Medical Science and Technology, Graduate Institute of Neural Regenerative Medicine, Taipei Medical University, Taipei, Taiwan
| | - Chung-Che Wu
- Department of Neurosurgery, Taipei Medical University, Taipei, Taiwan
| | - Wen-Ta Chiu
- College of Public Health and Nutrition, Graduate Institute of Injury Prevention and Control, Taipei Medical University, Taipei, Taiwan
| | - Kuo-Hsing Liao
- Department of Neurosurgery, Wan Fang Hospital, Taipei Medical University, Taipei, Taiwan
| | - Chien-Min Lin
- Department of Neurosurgery, Shuang Ho Hospital, Taipei Medical University, New Taipei City, Taiwan
| | - Shu-Yu Lin
- Graduate Institute of Biomedical Informatics, Taipei Medical University, Taipei, Taiwan
| | - Dean Wu
- Department of Neurology, Shuang Ho Hospital, Taipei Medical University, New Taipei City, Taiwan.,Department of Neurology, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan.,Dizziness and Balance Disorder Center, Taipei Medical University-Shuang Ho Hospital, New Taipei City, Taiwan.,Sleep Center, Shuang Ho Hospital, Taipei Medical University, New Taipei City, Taiwan
| | - Yao-Hsien Huang
- Department of Neurology, Shuang Ho Hospital, Taipei Medical University, New Taipei City, Taiwan.,Department of Neurology, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan.,Dizziness and Balance Disorder Center, Taipei Medical University-Shuang Ho Hospital, New Taipei City, Taiwan
| | - Yuan-Hung Wang
- College of Medicine, Graduate Institute of Clinical Medicine, Taipei Medical University, Taipei, Taiwan
| | - Chaur-Jong Hu
- Department of Neurology, Shuang Ho Hospital, Taipei Medical University, New Taipei City, Taiwan.,Department of Neurology, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan.,Dizziness and Balance Disorder Center, Taipei Medical University-Shuang Ho Hospital, New Taipei City, Taiwan
| | - Chien-Tai Hong
- Department of Neurology, Shuang Ho Hospital, Taipei Medical University, New Taipei City, Taiwan.,Department of Neurology, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan.,Dizziness and Balance Disorder Center, Taipei Medical University-Shuang Ho Hospital, New Taipei City, Taiwan
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45
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Deng W, Chen KY, Liu WY, Lv ZM, Zhang C. Effects of vitamin D on pancreatic islet β cell injury induced by low concentration cadmium in mice. J BIOL REG HOMEOS AG 2019; 33:245-250. [PMID: 30693736] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Affiliation(s)
- W Deng
- Endocrinology Department, Shanghai Songjiang Jiuting Hospital, Shanghai, China
| | - K Y Chen
- Endocrinology Department, First Affiliated Hospital of Jiamusi University, Jiamusi, Heilongjiang, China
| | - W Y Liu
- Endocrinology Department, First Affiliated Hospital of Jiamusi University, Jiamusi, Heilongjiang, China
| | - Z M Lv
- Endocrinology Department, First Affiliated Hospital of Jiamusi University, Jiamusi, Heilongjiang, China
| | - C Zhang
- Endocrinology Department, First Affiliated Hospital of Jiamusi University, Jiamusi, Heilongjiang, China
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46
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Lai JH, Karlsson TE, Wu JCC, Huang CZ, Chen YH, Kang SJ, Brodin ATS, Hoffer BJ, Olson L, Chiang YH, Chen KY. Role of Nogo Receptor-1 for Recovery of Balance, Cognition, and Emotion after Mild Traumatic Brain Injury in Mice. J Neurotrauma 2018; 36:1054-1059. [PMID: 30226403 DOI: 10.1089/neu.2018.5949] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Mild traumatic brain injury (mTBI) constitutes 75 ∼ 90% of all TBI cases and causes various physical, cognitive, emotional, and other psychological symptoms. Nogo receptor 1 (NgR1) is a regulator of structural brain plasticity during development and in adulthood. Here, we used mice that, in the absence of doxycycline, overexpress NgR1 in forebrain neurons (MemoFlex) to determine the role of NgR1 in recovery from mTBI with respect to balance, cognition, memory, and emotion. We compared wild-type (WT), MemoFlex, and MemoFlex + doxycycline mice to the same three groups subjected to mTBI. mTBI was induced by a controlled 30-g weight drop. We found that inability to downregulate NgR1 significantly impairs recovery from mTBI-induced impairments. When the NgR1 transgene was turned off, recovery was similar to that of WT mice. The results suggest that the ability to regulate NgR1 signaling is needed for optimal recovery of motor coordination and balance, spatial memory, cognition, and emotional functions after mTBI.
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Affiliation(s)
- Jing-Huei Lai
- 1 Core Laboratory of Neuroscience, Office of R&D, Taipei Medical University, Taipei, Taiwan.,2 Translational Laboratory, Department of Medical Research, Taipei Medical University Hospital, Taipei, Taiwan.,3 Center for Neurotrauma and Neuroregeneration, Taipei Medical University, Taipei, Taiwan
| | - Tobias E Karlsson
- 4 Department of Neuroscience, Karolinska Institutet, Stockholm, Sweden
| | - John Chung-Che Wu
- 2 Translational Laboratory, Department of Medical Research, Taipei Medical University Hospital, Taipei, Taiwan.,3 Center for Neurotrauma and Neuroregeneration, Taipei Medical University, Taipei, Taiwan.,5 Department of Surgery, College of Medicine, Taipei Medical University, Taipei, Taiwan.,6 Graduate Institute of Neural Regenerative Medicine, College of Medical Science and Technology, Taipei Medical University, Taipei, Taiwan
| | - Chi-Zong Huang
- 2 Translational Laboratory, Department of Medical Research, Taipei Medical University Hospital, Taipei, Taiwan.,3 Center for Neurotrauma and Neuroregeneration, Taipei Medical University, Taipei, Taiwan.,6 Graduate Institute of Neural Regenerative Medicine, College of Medical Science and Technology, Taipei Medical University, Taipei, Taiwan
| | - Yen-Hua Chen
- 2 Translational Laboratory, Department of Medical Research, Taipei Medical University Hospital, Taipei, Taiwan.,3 Center for Neurotrauma and Neuroregeneration, Taipei Medical University, Taipei, Taiwan.,5 Department of Surgery, College of Medicine, Taipei Medical University, Taipei, Taiwan
| | - Shuo-Jhen Kang
- 2 Translational Laboratory, Department of Medical Research, Taipei Medical University Hospital, Taipei, Taiwan.,3 Center for Neurotrauma and Neuroregeneration, Taipei Medical University, Taipei, Taiwan.,5 Department of Surgery, College of Medicine, Taipei Medical University, Taipei, Taiwan
| | - Alvin T S Brodin
- 4 Department of Neuroscience, Karolinska Institutet, Stockholm, Sweden
| | - Barry J Hoffer
- 7 Department of Neurosurgery, Case Western Reserve University, School of Medicine, Cleveland, Ohio
| | - Lars Olson
- 4 Department of Neuroscience, Karolinska Institutet, Stockholm, Sweden
| | - Yung-Hsiao Chiang
- 1 Core Laboratory of Neuroscience, Office of R&D, Taipei Medical University, Taipei, Taiwan.,2 Translational Laboratory, Department of Medical Research, Taipei Medical University Hospital, Taipei, Taiwan.,3 Center for Neurotrauma and Neuroregeneration, Taipei Medical University, Taipei, Taiwan.,5 Department of Surgery, College of Medicine, Taipei Medical University, Taipei, Taiwan.,6 Graduate Institute of Neural Regenerative Medicine, College of Medical Science and Technology, Taipei Medical University, Taipei, Taiwan
| | - Kai-Yun Chen
- 2 Translational Laboratory, Department of Medical Research, Taipei Medical University Hospital, Taipei, Taiwan.,3 Center for Neurotrauma and Neuroregeneration, Taipei Medical University, Taipei, Taiwan.,6 Graduate Institute of Neural Regenerative Medicine, College of Medical Science and Technology, Taipei Medical University, Taipei, Taiwan
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47
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Tsai YR, Chang CF, Lai JH, Wu JCC, Chen YH, Kang SJ, Hoffer BJ, Tweedie D, Luo W, Greig NH, Chiang YH, Chen KY. Pomalidomide Ameliorates H₂O₂-Induced Oxidative Stress Injury and Cell Death in Rat Primary Cortical Neuronal Cultures by Inducing Anti-Oxidative and Anti-Apoptosis Effects. Int J Mol Sci 2018; 19:ijms19103252. [PMID: 30347766 PMCID: PMC6213994 DOI: 10.3390/ijms19103252] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2018] [Revised: 10/16/2018] [Accepted: 10/17/2018] [Indexed: 12/12/2022] Open
Abstract
Due to its high oxygen demand and abundance of peroxidation-susceptible lipid cells, the brain is particularly vulnerable to oxidative stress. Induced by a redox state imbalance involving either excessive generation of reactive oxygen species (ROS) or dysfunction of the antioxidant system, oxidative stress plays a central role in a common pathophysiology that underpins neuronal cell death in acute neurological disorders epitomized by stroke and chronic ones such as Alzheimer’s disease. After cerebral ischemia, for example, inflammation bears a key responsibility in the development of permanent neurological damage. ROS are involved in the mechanism of post-ischemic inflammation. The activation of several inflammatory enzymes produces ROS, which subsequently suppress mitochondrial activity, leading to further tissue damage. Pomalidomide (POM) is a clinically available immunomodulatory and anti-inflammatory agent. Using H2O2-treated rat primary cortical neuronal cultures, we found POM displayed neuroprotective effects against oxidative stress and cell death that associated with changes in the nuclear factor erythroid derived 2/superoxide dismutase 2/catalase signaling pathway. POM also suppressed nuclear factor kappa-light-chain-enhancer (NF-κB) levels and significantly mitigated cortical neuronal apoptosis by regulating Bax, Cytochrome c and Poly (ADP-ribose) polymerase. In summary, POM exerted neuroprotective effects via its anti-oxidative and anti-inflammatory actions against H2O2-induced injury. POM consequently represents a potential therapeutic agent against brain damage and related disorders and warrants further evaluation.
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Affiliation(s)
- Yan-Rou Tsai
- Ph.D. Program for Neural Regenerative Medicine, College of Medical Science and Technology, Taipei Medical University and National Health Research Institutes, Taipei 11031, Taiwan.
- Center for Neurotrauma and Neuroregeneration, Taipei Medical University, Taipei 11031, Taiwan.
| | - Cheng-Fu Chang
- Center for Neurotrauma and Neuroregeneration, Taipei Medical University, Taipei 11031, Taiwan.
- Department of Neurosurgery, Taipei City Hospital, Zhongxiao Branch, Taipei 11556, Taiwan.
- Department of Surgery, College of Medicine, Taipei Medical University, Taipei 11031, Taiwan.
| | - Jing-Huei Lai
- Center for Neurotrauma and Neuroregeneration, Taipei Medical University, Taipei 11031, Taiwan.
- Department of Surgery, College of Medicine, Taipei Medical University, Taipei 11031, Taiwan.
| | - John Chung-Che Wu
- Center for Neurotrauma and Neuroregeneration, Taipei Medical University, Taipei 11031, Taiwan.
- Department of Surgery, College of Medicine, Taipei Medical University, Taipei 11031, Taiwan.
- Department of Neurosurgery, Taipei Medical University Hospital, Taipei 11031, Taiwan.
| | - Yen-Hua Chen
- Center for Neurotrauma and Neuroregeneration, Taipei Medical University, Taipei 11031, Taiwan.
- Department of Surgery, College of Medicine, Taipei Medical University, Taipei 11031, Taiwan.
| | - Shuo-Jhen Kang
- Center for Neurotrauma and Neuroregeneration, Taipei Medical University, Taipei 11031, Taiwan.
- Department of Surgery, College of Medicine, Taipei Medical University, Taipei 11031, Taiwan.
| | - Barry J Hoffer
- Center for Neurotrauma and Neuroregeneration, Taipei Medical University, Taipei 11031, Taiwan.
- Department of Neurosurgery, Case Western Reserve University, School of Medicine, Cleveland, OH 44106, USA.
| | - David Tweedie
- Drug Design & Development Section, Translational Gerontology Branch, Intramural Research Program, National Institute on Aging, National Institutes of Health, Baltimore, MD 20892, USA.
| | - Weiming Luo
- Drug Design & Development Section, Translational Gerontology Branch, Intramural Research Program, National Institute on Aging, National Institutes of Health, Baltimore, MD 20892, USA.
| | - Nigel H Greig
- Drug Design & Development Section, Translational Gerontology Branch, Intramural Research Program, National Institute on Aging, National Institutes of Health, Baltimore, MD 20892, USA.
| | - Yung-Hsiao Chiang
- Ph.D. Program for Neural Regenerative Medicine, College of Medical Science and Technology, Taipei Medical University and National Health Research Institutes, Taipei 11031, Taiwan.
- Center for Neurotrauma and Neuroregeneration, Taipei Medical University, Taipei 11031, Taiwan.
- Department of Surgery, College of Medicine, Taipei Medical University, Taipei 11031, Taiwan.
- Department of Neurosurgery, Taipei Medical University Hospital, Taipei 11031, Taiwan.
| | - Kai-Yun Chen
- Ph.D. Program for Neural Regenerative Medicine, College of Medical Science and Technology, Taipei Medical University and National Health Research Institutes, Taipei 11031, Taiwan.
- Center for Neurotrauma and Neuroregeneration, Taipei Medical University, Taipei 11031, Taiwan.
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48
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Chang CJ, Chang MY, Lee YC, Chen KY, Hsu TI, Wu YH, Chuang JY, Kao TJ. Nck2 is essential for limb trajectory selection by spinal motor axons. Dev Dyn 2018; 247:1043-1056. [DOI: 10.1002/dvdy.24656] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2018] [Revised: 07/02/2018] [Accepted: 07/03/2018] [Indexed: 11/08/2022] Open
Affiliation(s)
- Chih-Ju Chang
- Department of Neurosurgery; Cathay General Hospital; Taipei Taiwan
- School of Medicine; Fu Jen Catholic University; New Taipei Taiwan
- Departemnt of Mechanical Engineering; National Central University; Taiwan
| | - Ming-Yuan Chang
- Division of Neurosurgery, Department of Surgery; Min-Sheng General Hospital; Taiwan
- Graduate Institute of Neural Regenerative Medicine, College of Medical Science and Technology; Taipei Medical University; Taipei Taiwan
| | - Yi-Chao Lee
- Graduate Institute of Neural Regenerative Medicine, College of Medical Science and Technology; Taipei Medical University; Taipei Taiwan
- Center for Neurotrauma and Neuroregeneration; Taipei Medical University; Taipei Taiwan
| | - Kai-Yun Chen
- Graduate Institute of Neural Regenerative Medicine, College of Medical Science and Technology; Taipei Medical University; Taipei Taiwan
- Center for Neurotrauma and Neuroregeneration; Taipei Medical University; Taipei Taiwan
| | - Tsung-I Hsu
- Center for Neurotrauma and Neuroregeneration; Taipei Medical University; Taipei Taiwan
| | - Yi-Hsin Wu
- Graduate Institute of Neural Regenerative Medicine, College of Medical Science and Technology; Taipei Medical University; Taipei Taiwan
- Center for Neurotrauma and Neuroregeneration; Taipei Medical University; Taipei Taiwan
| | - Jian-Ying Chuang
- Graduate Institute of Neural Regenerative Medicine, College of Medical Science and Technology; Taipei Medical University; Taipei Taiwan
- Center for Neurotrauma and Neuroregeneration; Taipei Medical University; Taipei Taiwan
| | - Tzu-Jen Kao
- Graduate Institute of Neural Regenerative Medicine, College of Medical Science and Technology; Taipei Medical University; Taipei Taiwan
- Center for Neurotrauma and Neuroregeneration; Taipei Medical University; Taipei Taiwan
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49
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Lee KH, Chen CL, Lee YC, Kao TJ, Chen KY, Fang CY, Chang WC, Chiang YH, Huang CC. Author Correction: Znf179 induces differentiation and growth arrest of human primary glioblastoma multiforme in a p53-dependent cell cycle pathway. Sci Rep 2018; 8:13375. [PMID: 30177766 PMCID: PMC6120929 DOI: 10.1038/s41598-018-30081-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
A correction to this article has been published and is linked from the HTML and PDF versions of this paper. The error has been fixed in the paper.
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Affiliation(s)
- Kuen-Haur Lee
- Graduate Institute of Cancer Biology and Drug Discovery, College of Medical Science and Technology, Taipei Medical University, Taipei, Taiwan
| | - Chi-Long Chen
- Department of Pathology, Taipei Medical University Hospital, Taipei, Taiwan.,Department of Pathology, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
| | - Yi-Chao Lee
- Graduate Institute of Neural Regenerative Medicine, College of Medical Science and Technology, Taipei Medical University, Taipei, Taiwan
| | - Tzu-Jen Kao
- Graduate Institute of Neural Regenerative Medicine, College of Medical Science and Technology, Taipei Medical University, Taipei, Taiwan
| | - Kai-Yun Chen
- Graduate Institute of Neural Regenerative Medicine, College of Medical Science and Technology, Taipei Medical University, Taipei, Taiwan
| | - Chih-Yeu Fang
- Department of Pathology, Wan Fang Hospital, Taipei Medical University, Taipei, Taiwan
| | - Wen-Chang Chang
- Graduate Institute of Medical Sciences, College of Medicine, Taipei Medical University, Taipei, Taiwan
| | - Yung-Hsaio Chiang
- Graduate Institute of Neural Regenerative Medicine, College of Medical Science and Technology, Taipei Medical University, Taipei, Taiwan
| | - Chi-Chen Huang
- Graduate Institute of Neural Regenerative Medicine, College of Medical Science and Technology, Taipei Medical University, Taipei, Taiwan.
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50
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Chen XX, Shi Y, Lu YH, Chen YH, Chen KY, Ren H. [Spatial-temporal distribution characteristics of hepatitis E in Shanghai, 2006-2016]. Zhonghua Liu Xing Bing Xue Za Zhi 2018; 39:971-976. [PMID: 30060314 DOI: 10.3760/cma.j.issn.0254-6450.2018.07.020] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Objective: To understand the epidemiologic characteristics and spatial-temporal distribution of hepatitis E in Shanghai between 2006 and 2016. Methods: The reported incidence of hepatitis E and health facilities' information between 2006 and 2016 were collected from the China Information System for Disease Control and Prevention. The geographic information were from Shanghai Surveying and Mapping Institute. The map scale was 1∶750 000. Global and local autocorrelation, and spatial-temporal detection methods were applied to determine the spatial-temporal characteristics of hepatitis E. Software ArcGIS 10.1 was used to analyze global and local spatial auto correlation of hepatitis E spatial clusters. Software SaTScan 9.4.4 was used to conduct scan for exploring the areas of hepatitis E temporal spatial clusters. Results: A total of 6 048 cases of hepatitis E were reported in Shanghai during 2006-2016. The average incidence was 2.14/100 000. Spatial auto correlation analysis indicated that there was significant spatial positive correlations and spatial-temporal clustering of hepatitis E in Shanghai, and the "high-high cluster" was mainly located in the downtown of the city. Conclusion: Understanding the spatial-temporal clustering areas of hepatitis E cases in Shanghai from 2006 to 2016 is important to the reasonable allocation of public health resources and effective prevention and control of hepatitis E.
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Affiliation(s)
- X X Chen
- Key Laboratory for Public Health Safety, School of Public Health, Fudan University, Shanghai 200032, China
| | - Y Shi
- Shanghai Municipal Center for Disease Control and Prevention, Shanghai 200336, China
| | - Y H Lu
- Key Laboratory for Public Health Safety, School of Public Health, Fudan University, Shanghai 200032, China
| | - Y H Chen
- Shanghai Municipal Center for Disease Control and Prevention, Shanghai 200336, China
| | - K Y Chen
- Shanghai Municipal Center for Disease Control and Prevention, Shanghai 200336, China
| | - H Ren
- Shanghai Municipal Center for Disease Control and Prevention, Shanghai 200336, China
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