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Dong Y, Qi Y, Chen J, Han S, Su W, Ma X, Yu Y, Wang Y. Neuroprotective Effects of Bifidobacterium animalis subsp. lactis NJ241 in a Mouse Model of Parkinson's Disease: Implications for Gut Microbiota and PGC-1α. Mol Neurobiol 2024:10.1007/s12035-024-04038-2. [PMID: 38409641 DOI: 10.1007/s12035-024-04038-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2023] [Accepted: 02/09/2024] [Indexed: 02/28/2024]
Abstract
Intestinal dysbiosis plays a critical role in the pathogenesis of Parkinson's disease (PD), and probiotics have emerged as potential modulators of central nervous system function through the microbiota-gut-brain axis. This study aimed to elucidate the anti-inflammatory effects and underlying mechanisms of the probiotic strain Bifidobacterium animalis subsp. lactis NJ241 (NJ241) in a mouse model of PD induced by 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP). The impact of NJ241 was comprehensively assessed in PD mice through behavioral tests, immunofluorescence, Western blotting, enzyme-linked immunosorbent assay (ELISA), 16S rRNA sequencing, and short-chain fatty acid (SCFA) detection. NJ241 exhibited notable efficacy in mitigating MPTP-induced weight loss, gastrointestinal dysfunction, and behavioral deficits in mice. Furthermore, it demonstrated protected against MPTP-induced dopaminergic neuron death and inhibited the activation of glial cells in the substantia nigra (SN). NJ241 demonstrated the ability to normalized dysbiosis in the intestinal microbiota and elevate SCFA levels in PD mice. Additionally, NJ241 reversed MPTP-induced reductions in colonic GLP-1 levels and the expression of GLP-1R and PGC-1α in the SN. Notably, GLP-1R antagonists partially reversed the inhibitory effects of NJ241 on the activation of glial cells in the SN. In summary, NJ241 exerts a neuroprotective effect against MPTP-induced neuroinflammation by enhancing intestinal GLP-1 levels and activating nigral PGC-1α signaling. These findings provide a rationale for the exploration and development of probiotic-based therapeutic strategies for PD.
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Affiliation(s)
- Yuxuan Dong
- Hebei Research Center of the Basic Discipline of Cell Biology, Hebei Collaborative Innovation Center for Eco-Environment, Hebei Key Laboratory of Physiology, College of Life Sciences, Hebei Normal University, Shijiazhuang, 050024, China
| | - Yueyan Qi
- Hebei Research Center of the Basic Discipline of Cell Biology, Hebei Collaborative Innovation Center for Eco-Environment, Hebei Key Laboratory of Physiology, College of Life Sciences, Hebei Normal University, Shijiazhuang, 050024, China
| | - Jinhu Chen
- Department of Endocrinology, Hebei General Hospital, Shijiazhuang, 050051, China
| | - Siyuan Han
- Hebei Research Center of the Basic Discipline of Cell Biology, Hebei Collaborative Innovation Center for Eco-Environment, Hebei Key Laboratory of Physiology, College of Life Sciences, Hebei Normal University, Shijiazhuang, 050024, China
| | - Wenjing Su
- Hebei Research Center of the Basic Discipline of Cell Biology, Hebei Collaborative Innovation Center for Eco-Environment, Hebei Key Laboratory of Physiology, College of Life Sciences, Hebei Normal University, Shijiazhuang, 050024, China
| | - Xin Ma
- Thankcome Biotechnology (Su Zhou) Co., Suzhou, China
| | - Yang Yu
- Thankcome Biotechnology (Su Zhou) Co., Suzhou, China
| | - Yanqin Wang
- Hebei Research Center of the Basic Discipline of Cell Biology, Hebei Collaborative Innovation Center for Eco-Environment, Hebei Key Laboratory of Physiology, College of Life Sciences, Hebei Normal University, Shijiazhuang, 050024, China.
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Qi W, Zeng D, Xiong X, Hu Q. Knockdown of SEMA7A alleviates MPP + -induced apoptosis and inflammation in BV2 microglia via PPAR-γ activation and MAPK inactivation. Immun Inflamm Dis 2023; 11:e756. [PMID: 36705403 PMCID: PMC9837934 DOI: 10.1002/iid3.756] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2022] [Revised: 11/10/2022] [Accepted: 11/30/2022] [Indexed: 01/15/2023] Open
Abstract
INTRODUCTION The inflammation mediated by microglial cells plays an important role in the process of neurodegenerative diseases. Recent evidence indicates that semaphorin 7A (SEMA7A) is implicated in various neurodegenerative diseases, but whether it plays a role in Parkinson's disease (PD) remains unclear. METHODS In this study, 1.0 mmol/L 1-methyl-4-phenylpyridinium (MPP+ )-stimulated mouse microglia (BV2) cells were used as an in vitro model of PD. The expression of SEMA7A was detected by quantitative polymerase chain reaction. Cell Counting Kit-8 and apoptosis kits were used to analyze the viability and apoptosis of BV-2 cells. The content of IL-6, IL-β, and tumor necrosis factor-α was determined by ELISA (enzyme-linked immunosorbent assay) kit. Western blot was used to detect the protein expression level of the inducible NO synthase and cyclooxygenase-2. RESULTS Our findings indicated that SEMA7A expression in BV2 cells was upregulated after MPP+ stimulation. Knockdown of SEMA7A promoted cell viability while it inhibited apoptosis and the expression of proinflammatory enzymes and proinflammatory cytokines. Silencing SEMA7A-induced peroxisome proliferator-activated receptor-gamma (PPAR-γ) activation and mitogen-activated protein kinase (MAPK) signaling pathway inactivation. Furthermore, a PPAR-γ inhibitor and an MAPK activator promoted the effect of MPP+ on cell viability, apoptosis, and inflammation of BV2 cells; what is more, the PPAR-γ inhibitor and MAPK activator blocked the inhibitory effect of SEMA7A downregulation on MPP+ -induced injury. CONCLUSION In general, knockdown of SEMA7A inhibits MPP+ -induced BV2 cell apoptosis and inflammation via PPAR-γ activation and MAPK inactivation, which may provide a new therapy target for PD.
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Affiliation(s)
- Weinan Qi
- Department of NeurologyYantian District People's HospitalShenzhenChina
| | - Dan Zeng
- Department of RadiologyYantian District People's HospitalShenzhenChina
| | - Xiaoshuan Xiong
- Department of CardiologyYantian District People's HospitalShenzhenChina
| | - Qun Hu
- Department of AnesthesiologyYichun People's HospitalYichunChina
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Yang L, Yu S, Yang Y, Wu H, Zhang X, Lei Y, Lei Z. Berberine improves liver injury induced glucose and lipid metabolic disorders via alleviating ER stress of hepatocytes and modulating gut microbiota in mice. Bioorg Med Chem 2022; 55:116598. [PMID: 34979291 DOI: 10.1016/j.bmc.2021.116598] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2021] [Revised: 12/20/2021] [Accepted: 12/27/2021] [Indexed: 12/16/2022]
Abstract
Liver injury mediated by endoplasmic reticulum (ER) stress can cause many kinds of liver diseases including hepatic glucose and lipid metabolic disorders, and long term liver injury would lead to cirrhosis and hepatic cancer. Therefore, effective drugs for treating liver injury are urgent in need. Berberine is a multifunctional drug of traditional Chinese medicine, and it can improve various liver diseases. To study the effects of berberine on ER stress-induced liver injury, tunicamycin was administrated to C57BL/6 mice with or without berberine pre-treatment. H&E staining was used to check the morphology and histology of liver tissues. The serum and liver tissues were harvested to test biochemical indexes and the expression levels of genes related with glucose and lipid metabolism, ER stress and unfold protein response (UPR). 16S rDNA sequence technology was conducted to check the fecal microbiota. Pre-administration with berberine could alleviate the excess accumulation of triglyceride (TG) in the liver of mice treated with tunicamycin. Tunicamycin administration caused significant increase of the expression level of genes related to ER stress and UPR, such as CHOP, Grp78 and ATF6, but the berberine pre-treatment could significantly downregulate the expression level of these genes. Tunicamycin administration resulted in increased ratio of Prevotellaceae to Erysipelotrichaceae at the family level of the fecal microbiota in mice, and this trend was reversed by the pre-treatment of berberine. These results demonstrated that berberine could improve liver injury induced hepatic metabolic disorders through relieving ER stress in hepatocytes and regulating gut microbiota in mice.
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Affiliation(s)
- Lanxiang Yang
- Guangdong Metabolic Diseases Research Center of Integrated Chinese and Western Medicine; Key Laboratory of Glucolipid Metabolic Disorder, Ministry of Education of China; Institute of Chinese Medicine, Guangdong Pharmaceutical University; Guangdong TCM Key Laboratory for Metabolic Diseases, Guangzhou 510006, P.R. China; School of Biological Engineering, Wuhu Institute of Technology, Wenjin West Road 201#, Wuhu 241003, P.R. China; School of Traditional Chinese Medicine, Guangdong Pharmaceutical University, Guangzhou Higher Education Mega Center, Guangzhou 510006, P.R. China
| | - Siping Yu
- Guangdong Metabolic Diseases Research Center of Integrated Chinese and Western Medicine; Key Laboratory of Glucolipid Metabolic Disorder, Ministry of Education of China; Institute of Chinese Medicine, Guangdong Pharmaceutical University; Guangdong TCM Key Laboratory for Metabolic Diseases, Guangzhou 510006, P.R. China; School of Traditional Chinese Medicine, Guangdong Pharmaceutical University, Guangzhou Higher Education Mega Center, Guangzhou 510006, P.R. China
| | - Yanhong Yang
- The First Affiliated Hospital (School of Clinical Medicine), Guangdong Pharmaceutical University, Nong-Lin-Xia Road 19#, Yue-Xiu District, Guangzhou 510080, P.R. China
| | - Huijuan Wu
- Guangdong Metabolic Diseases Research Center of Integrated Chinese and Western Medicine; Key Laboratory of Glucolipid Metabolic Disorder, Ministry of Education of China; Institute of Chinese Medicine, Guangdong Pharmaceutical University; Guangdong TCM Key Laboratory for Metabolic Diseases, Guangzhou 510006, P.R. China; School of Biological Engineering, Wuhu Institute of Technology, Wenjin West Road 201#, Wuhu 241003, P.R. China
| | - Xueying Zhang
- Guangdong Metabolic Diseases Research Center of Integrated Chinese and Western Medicine; Key Laboratory of Glucolipid Metabolic Disorder, Ministry of Education of China; Institute of Chinese Medicine, Guangdong Pharmaceutical University; Guangdong TCM Key Laboratory for Metabolic Diseases, Guangzhou 510006, P.R. China; School of Biological Engineering, Wuhu Institute of Technology, Wenjin West Road 201#, Wuhu 241003, P.R. China
| | - Yuting Lei
- Guangdong Metabolic Diseases Research Center of Integrated Chinese and Western Medicine; Key Laboratory of Glucolipid Metabolic Disorder, Ministry of Education of China; Institute of Chinese Medicine, Guangdong Pharmaceutical University; Guangdong TCM Key Laboratory for Metabolic Diseases, Guangzhou 510006, P.R. China
| | - Zili Lei
- Guangdong Metabolic Diseases Research Center of Integrated Chinese and Western Medicine; Key Laboratory of Glucolipid Metabolic Disorder, Ministry of Education of China; Institute of Chinese Medicine, Guangdong Pharmaceutical University; Guangdong TCM Key Laboratory for Metabolic Diseases, Guangzhou 510006, P.R. China.
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Liu J, Hu H, Wu B. RIPK1 inhibitor ameliorates the MPP +/MPTP-induced Parkinson's disease through the ASK1/JNK signalling pathway. Brain Res 2021; 1757:147310. [PMID: 33524379 DOI: 10.1016/j.brainres.2021.147310] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2020] [Revised: 01/14/2021] [Accepted: 01/16/2021] [Indexed: 12/22/2022]
Abstract
Receptor-interacting protein kinase 1 (RIPK1) is up-regulated in patients with neurodegenerative diseases. Our study aimed to explore the underlying mechanisms that involved in the neurotoxic function of RIPK1 in Parkinson's disease (PD). MPP+/MPTP-induced PD cellular and mice models were used in this study. The results showed that RIPK1 was high expressed and activated in MPP+-treated SH-SY5Y cells and MPTP-induced PD mice. Overexpression of RIPK1 facilitated cell apoptosis, necrosis, inflammation response, ROS production and mitochondrial dysfunction in MPP+- treated SH-SY5Y cells, while the RIPK1 inhibitor Nec-1s has an opposite effect. In addition, the Apoptosis-signaling kinase-1 (ASK1)/c-Jun N-terminal kinase (JNK) signalling pathway was activated during the overexpression of RIPK1, and inhibiting the ASK1/JNK signal by the ASK1 inhibitor partially reversed the decline of cell viability, the increase of cell apoptosis, necrosis and inflammation induced by RIPK1 overexpression in MPP+-treated SH-SY5Y cells. Further studies suggested that the inhibition of RIPK1 by Nec-1s largely alleviated the behavioural impairment in PD mice. Hence, our study indicated that the RIPK1 inhibitor Nec-1s has neuroprotective effects against PD through inactivating the ASK1/JNK signalling pathway.
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Affiliation(s)
- Jing Liu
- Department of Clinical Laboratory, No. 215 Hospital of Shaanxi Nuclear Industry, Xianyang 712000, Shaanxi, China
| | - Huizheng Hu
- Department of Clinical Laboratory, No. 215 Hospital of Shaanxi Nuclear Industry, Xianyang 712000, Shaanxi, China.
| | - Binyan Wu
- Department of Clinical Laboratory, No. 215 Hospital of Shaanxi Nuclear Industry, Xianyang 712000, Shaanxi, China
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Exendin-4 Reversed the PC12 Cell Damage Induced by circRNA CDR1as/miR-671/GSK3β Signaling Pathway. J Mol Neurosci 2020; 71:778-789. [PMID: 32889692 DOI: 10.1007/s12031-020-01698-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2020] [Accepted: 09/01/2020] [Indexed: 10/23/2022]
Abstract
The purpose of this paper is to study the effect of circRNA cerebellar degeneration-related protein 1 antisense RNA(CDR1as)/miR-671/GSK3β signaling pathway on PC12 cell injury and the mechanism of Exendin-4 (Ex-4) in PC12 cell injury protection. Quantitative reverse-transcription polymerase chain reaction (qRT-PCR) was used to detect the expression levels of circular RNA CDR1as and miR-671 in PC12 cells. By overexpressing or knocking out CDR1as, miR-671, and GSK3β, the role of CDR1as, miR-671, and GSK3β in PC12 cell injury was analyzed. The binding of CDR1as to miR-671 and GSK3β to miR-671 was verified by dual luciferase reporter assay. PC12 cells were treated with 1-methyl-4 phenyl-pyridine ion (MPP+) to construct a PC12 cell damage model. PC12 cell transfection experiments were used to confirm the role of CDR1as/miR-671/GSK3β signal axis in PC12 cell damage, and the role of Ex-4 in the association of circRNA CDR1as/miR-671/GSK3β signaling axis and PC12 cell damage. PC12 cell damage was detected by 3-(4,5-dimethyl thiazol-2-yl)-2,5-diphenyl tetrazolium bromide (MTT) and cellular lactate dehydrogenase (LDH) release. Ex-4 reversed the phosphorylation levels of PI3K, AKT, and GSK-3β in MPP+-treated PC12 cells, and reduced MPP+-induced PC12 cell damage. CircRNA CDR1as upregulated the expression of GSK3β by sponge miR-671. Ex-4 downregulated CDR1as expression and upregulated miR-671 expression in MPP+-induced PC12 cell. Silencing of CDR1as reduced MPP+-induced PC12 cell damage. CDR1as transfection downregulated the expression of miR-671 in PC12 cells, promoted the expression and phosphorylated of GSK3β, and induced PC12 cell damage. GSK3β silencing reversed CDR1as-induced PC12 cell damage. CDR1as promoted the phosphorylation level of GSK3β in PC12 cells to cause cell damage; Ex-4 reversed the phosphorylation of GSK3β caused by CDR1as in PC12 cells and reduced the PC12 cell damage caused by CDR1as. Ex-4 reverses the damage of PC12 cells induced by CDR1as/miR-671/GSK3β signaling pathway.
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Jiang D, Peng Y. The protective effect of decoction of Rehmanniae via PI3K/Akt/mTOR pathway in MPP +-induced Parkinson's disease model cells. J Recept Signal Transduct Res 2020; 41:74-84. [PMID: 32611232 DOI: 10.1080/10799893.2020.1787445] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
This research aims to explore the function of DOR in 1-methyl-4-phenylpyridinium (MPP+)-induced Parkinson's disease model cell SH-SY5Y. SH-SY5Y cells were exposed with various doses of MPP + or DOR. Cell counting Kit-8 (CCK-8) assay and flow cytometry (FCM) were used to detect the cell viability, apoptosis and reactive oxygen species (ROS) levels in MPP+ Parkinson's disease model cells SH-SY5Y. The oxidative stress markers were measured by Enzyme-linked immunosorbent assay (ELISA), Western blot and quantitative real-time reverse transcription PCR (qRT-PCR) assays. To further determine the protective effect of DOR on acute injury via PI3K/Akt/mTOR pathway, cells were treated with LY294002 (LY), a PI3K/Akt/mTOR pathway inhibitor, with MMP + or DOR or not. MPP+ at various doses caused cell injury with decrease of viability, increase of apoptosis and ROS level, while DOR partly prevented the cell against injury induced by MPP+. Bax, Cyt-c and cleaved-Caspase-12, 9 and 3 were increased, and meanwhile Bcl-2 was decreased in MPP+ stimulated cells, while those changes could be partly inhibited by DOR incubation. Furthermore, the phosphorylation level of PI3K, AKT and mTOR was suppressed by MPP+, while DOR treatment could enhanced the level of phosphorylated-PI3K (p-PI3K), AKT (P-AKT) and mTOR. LY aggravated the injury of SH-SY5Y cells treated with MPP+, and DOR could partly alleviate those effects. DOR had a protective effect against MPP+ induced injury of Parkinson's disease model cell through activating the PI3K/Akt/mTOR pathway. It suggests that DOR should be further explored in Parkinson's disease.
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Affiliation(s)
- Dajing Jiang
- Department of Neurology, First People's Hospital of Jingzhou, Jingzhou, China
| | - Yang Peng
- Department of Emergency, First People's Hospital of Jingmen, Jingmen, China
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Jia E, Zhou Y, Liu Z, Wang L, Ouyang T, Pan M, Bai Y, Ge Q. Transcriptomic Profiling of Circular RNA in Different Brain Regions of Parkinson's Disease in a Mouse Model. Int J Mol Sci 2020; 21:ijms21083006. [PMID: 32344560 PMCID: PMC7216060 DOI: 10.3390/ijms21083006] [Citation(s) in RCA: 42] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2020] [Revised: 04/22/2020] [Accepted: 04/23/2020] [Indexed: 01/20/2023] Open
Abstract
Parkinson's disease (PD) is the second most common neurodegenerative disease and although many studies have been done on this disease, the underlying mechanisms are still poorly understood and further studies are warranted. Therefore, this study identified circRNA expression profiles in the cerebral cortex (CC), hippocampus (HP), striatum (ST), and cerebellum (CB) regions of the 1-methyl-1,2,3,6-tetrahydropyridine (MPTP)-induced PD mouse model using RNA sequencing (RNA-seq), and differentially expressed circRNA were validated using reverse transcription quantitative real-time PCR (qRT-PCR). Gene ontology (GO), Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway, and competing endogenous RNA (ceRNA) network analyses were also performed to explore the potential function of circRNAs. The results show that, compared with the control group, 24, 66, 71, and 121 differentially expressed circRNAs (DE-circRNAs) were found in the CC, HP, ST, and CB, respectively. PDST vs. PDCB, PDST vs. PDHP, and PDCB vs. PDHP groups have 578, 110, and 749 DE-circRNAs, respectively. Then, seven DE-cirRNAs were selected for qRT-PCR verification, where the expressions were consistent with the sequencing analysis. The GO and KEGG pathway analyses revealed that these DE-circRNAs participate in several biological functions and signaling pathways, including glutamic synapse, neuron to neuron synapse, cell morphogenesis involved in neuron differentiation, Parkinson's disease, axon guidance, cGMP-PKG signaling pathway, and PI3K-Akt signaling pathway. Furthermore, the KEGG analysis of the target genes predicted by DE-circRNAs indicated that the target genes predicted by mmu_circRNA_0003292, mmu_circRNA_0001320, mmu_circRNA_0005976, and mmu_circRNA_0005388 were involved in the PD-related pathway. Overall, this is the first study on the expression profile of circRNAs in the different brain regions of PD mouse model. These results might facilitate our understanding of the potential roles of circRNAs in the pathogenesis of PD. Moreover, the results also indicate that the mmu_circRNA_0003292-miRNA-132-Nr4a2 pathway might be involved in the regulation of the molecular mechanism of Parkinson's disease.
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Affiliation(s)
- Erteng Jia
- State Key Laboratory of Bioelectronics, School of Biological Science & Medical Engineering, Southeast University, Nanjing 210096, China; (E.J.); (Y.Z.); (Z.L.); (L.W.); (T.O.); (Y.B.)
| | - Ying Zhou
- State Key Laboratory of Bioelectronics, School of Biological Science & Medical Engineering, Southeast University, Nanjing 210096, China; (E.J.); (Y.Z.); (Z.L.); (L.W.); (T.O.); (Y.B.)
| | - Zhiyu Liu
- State Key Laboratory of Bioelectronics, School of Biological Science & Medical Engineering, Southeast University, Nanjing 210096, China; (E.J.); (Y.Z.); (Z.L.); (L.W.); (T.O.); (Y.B.)
| | - Liujing Wang
- State Key Laboratory of Bioelectronics, School of Biological Science & Medical Engineering, Southeast University, Nanjing 210096, China; (E.J.); (Y.Z.); (Z.L.); (L.W.); (T.O.); (Y.B.)
| | - Tinglan Ouyang
- State Key Laboratory of Bioelectronics, School of Biological Science & Medical Engineering, Southeast University, Nanjing 210096, China; (E.J.); (Y.Z.); (Z.L.); (L.W.); (T.O.); (Y.B.)
| | - Min Pan
- School of Medicine, Southeast University, Nanjing 210097, China;
| | - Yunfei Bai
- State Key Laboratory of Bioelectronics, School of Biological Science & Medical Engineering, Southeast University, Nanjing 210096, China; (E.J.); (Y.Z.); (Z.L.); (L.W.); (T.O.); (Y.B.)
| | - Qinyu Ge
- State Key Laboratory of Bioelectronics, School of Biological Science & Medical Engineering, Southeast University, Nanjing 210096, China; (E.J.); (Y.Z.); (Z.L.); (L.W.); (T.O.); (Y.B.)
- Correspondence: ; Tel.: +86-25-8379-2396
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