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Yang S, Ma Y, Song Y, Wang X, Cong P, Meng N, Xu J, Xue C. Establishment of a targeted analysis method for gangliosides in mouse tissues by HILIC-ESI-MS/MS. Anal Bioanal Chem 2024:10.1007/s00216-024-05169-0. [PMID: 38305860 DOI: 10.1007/s00216-024-05169-0] [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: 10/07/2023] [Revised: 01/10/2024] [Accepted: 01/22/2024] [Indexed: 02/03/2024]
Abstract
Gangliosides play an imperative role in cell signaling, neuronal recovery, apoptosis, and other physiological processes. For example, GM3 can regulate hypothalamic leptin resistance and control energy homeostasis, GD3 can mediate cell proliferation and differentiation and induce apoptosis, and GQ1b can stimulate neurogenesis. Therefore, the present study sought to establish and optimize the targeted analysis method for ganglioside subclasses and their molecular species using hydrophilic interaction liquid chromatography-triple quadrupole-MS/MS (HILIC-QQQ-MS/MS). Additionally, the fragmentation pattern of different ganglioside subclasses and their retention time patterns were analyzed, providing more accurate qualitative results. The limit of quantitation (LOQ) was as low as 10-4 ng. Moreover, the molecular species of gangliosides in the liver, cortex, and hypothalamus of C57BL/6 mice were analyzed using the established method. A total of 23 ganglioside subclasses with 164 molecular species, including 40 O-acetylated ganglioside molecular species and 28 NeuGc ganglioside molecular species, were identified using the semi-quantitative analysis method of an external standard curve corrected by an internal standard. In addition to NeuGc gangliosides, the contents of ganglioside subclasses were more abundant in the mouse brain than those in the mouse liver; especially, the contents of unsaturated gangliosides in the hypothalamus were much higher than those in the liver. Among them, O-acetylated gangliosides were detected only in the cortex and hypothalamus at a concentration of up to 100 μg/mg protein (40 molecular species). Overall, the proposed method expanded the detectable number of ganglioside subclasses and molecular species in biological samples and provided more opportunities for further study of the biological functions of gangliosides.
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Affiliation(s)
- Shuo Yang
- State Key Laboratory of Marine Food Processing & Safety Control, College of Food Science and Engineering, Ocean University of China, No. 1299, Sansha Road, Qingdao, 266404, Shandong, China
| | - Yingxu Ma
- State Key Laboratory of Marine Food Processing & Safety Control, College of Food Science and Engineering, Ocean University of China, No. 1299, Sansha Road, Qingdao, 266404, Shandong, China
| | - Yu Song
- State Key Laboratory of Marine Food Processing & Safety Control, College of Food Science and Engineering, Ocean University of China, No. 1299, Sansha Road, Qingdao, 266404, Shandong, China
| | - Xiaoxu Wang
- State Key Laboratory of Marine Food Processing & Safety Control, College of Food Science and Engineering, Ocean University of China, No. 1299, Sansha Road, Qingdao, 266404, Shandong, China
| | - Peixu Cong
- State Key Laboratory of Marine Food Processing & Safety Control, College of Food Science and Engineering, Ocean University of China, No. 1299, Sansha Road, Qingdao, 266404, Shandong, China.
| | - Nan Meng
- State Key Laboratory of Marine Food Processing & Safety Control, College of Food Science and Engineering, Ocean University of China, No. 1299, Sansha Road, Qingdao, 266404, Shandong, China
| | - Jie Xu
- State Key Laboratory of Marine Food Processing & Safety Control, College of Food Science and Engineering, Ocean University of China, No. 1299, Sansha Road, Qingdao, 266404, Shandong, China.
| | - Changhu Xue
- State Key Laboratory of Marine Food Processing & Safety Control, College of Food Science and Engineering, Ocean University of China, No. 1299, Sansha Road, Qingdao, 266404, Shandong, China
- Qingdao Marine Science and Technology Center, Qingdao, 266235, China
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Wan J, Ma L, Jiao X, Dong W, Lin J, Qiu Y, Wu W, Liu Q, Chen C, Huang H, Li S, Zheng H, Wu Y. Impaired synaptic plasticity and decreased excitability of hippocampal glutamatergic neurons mediated by BDNF downregulation contribute to cognitive dysfunction in mice induced by repeated neonatal exposure to ketamine. CNS Neurosci Ther 2024; 30:e14604. [PMID: 38332635 PMCID: PMC10853651 DOI: 10.1111/cns.14604] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2023] [Revised: 12/22/2023] [Accepted: 01/03/2024] [Indexed: 02/10/2024] Open
Abstract
AIM Repeated exposure to ketamine during the neonatal period in mice leads to cognitive impairments in adulthood. These impairments are likely caused by synaptic plasticity and excitability damage. We investigated the precise role of brain-derived neurotrophic factor (BDNF) in the cognitive impairments induced by repeated ketamine exposure during the neonatal period. METHODS We evaluated the cognitive function of mice using the Morris water maze test and novel object recognition test. Western blotting and immunofluorescence were used to detect the protein levels of BDNF. Western blotting, Golgi-Cox staining, transmission electron microscopy, and long-term potentiation (LTP) recordings were used to assess synaptic plasticity in the hippocampus. The excitability of neurons was evaluated using c-Fos. In the intervention experiment, pAdeno-CaMKIIα-BDNF-mNeuronGreen was injected into the hippocampal CA1 region of mice to increase the level of BDNF. The excitability of neurons was enhanced using a chemogenetic approach. RESULTS Our findings suggest that cognitive impairments in mice repeatedly exposed to ketamine during the neonatal period are associated with downregulated BDNF protein level, synaptic plasticity damage, and decreased excitability of glutamatergic neurons in the hippocampal CA1 region. Furthermore, the specific upregulation of BDNF in glutamatergic neurons of the hippocampal CA1 region and the enhancement of excitability can improve impaired synaptic plasticity and cognitive function in mice. CONCLUSION BDNF downregulation mediates synaptic plasticity and excitability damage, leading to cognitive impairments in adulthood following repeated ketamine exposure during the neonatal period.
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Affiliation(s)
- Jie Wan
- Jiangsu Province Key Laboratory of Anesthesiology, Jiangsu Province Key Laboratory of Anesthesia and Analgesia Application Technology, NMPA Key Laboratory for Research and Evaluation of Narcotic and Psychotropic DrugsXuzhou Medical UniversityXuzhouChina
| | - Linhui Ma
- Jiangsu Province Key Laboratory of Anesthesiology, Jiangsu Province Key Laboratory of Anesthesia and Analgesia Application Technology, NMPA Key Laboratory for Research and Evaluation of Narcotic and Psychotropic DrugsXuzhou Medical UniversityXuzhouChina
- Department of Anesthesiology, National Cancer Center/National Clinical Research Center for Cancer/Cancer HospitalChinese Academy of Medical Sciences and Peking Union Medical CollegeBeijingChina
| | - Xinhao Jiao
- Jiangsu Province Key Laboratory of Anesthesiology, Jiangsu Province Key Laboratory of Anesthesia and Analgesia Application Technology, NMPA Key Laboratory for Research and Evaluation of Narcotic and Psychotropic DrugsXuzhou Medical UniversityXuzhouChina
| | - Wei Dong
- Jiangsu Province Key Laboratory of Anesthesiology, Jiangsu Province Key Laboratory of Anesthesia and Analgesia Application Technology, NMPA Key Laboratory for Research and Evaluation of Narcotic and Psychotropic DrugsXuzhou Medical UniversityXuzhouChina
| | - Jiatao Lin
- Jiangsu Province Key Laboratory of Anesthesiology, Jiangsu Province Key Laboratory of Anesthesia and Analgesia Application Technology, NMPA Key Laboratory for Research and Evaluation of Narcotic and Psychotropic DrugsXuzhou Medical UniversityXuzhouChina
| | - Yongkang Qiu
- Jiangsu Province Key Laboratory of Anesthesiology, Jiangsu Province Key Laboratory of Anesthesia and Analgesia Application Technology, NMPA Key Laboratory for Research and Evaluation of Narcotic and Psychotropic DrugsXuzhou Medical UniversityXuzhouChina
| | - Weifeng Wu
- Jiangsu Province Key Laboratory of Anesthesiology, Jiangsu Province Key Laboratory of Anesthesia and Analgesia Application Technology, NMPA Key Laboratory for Research and Evaluation of Narcotic and Psychotropic DrugsXuzhou Medical UniversityXuzhouChina
| | - Qiang Liu
- Jiangsu Province Key Laboratory of Anesthesiology, Jiangsu Province Key Laboratory of Anesthesia and Analgesia Application Technology, NMPA Key Laboratory for Research and Evaluation of Narcotic and Psychotropic DrugsXuzhou Medical UniversityXuzhouChina
| | - Chen Chen
- Jiangsu Province Key Laboratory of Anesthesiology, Jiangsu Province Key Laboratory of Anesthesia and Analgesia Application Technology, NMPA Key Laboratory for Research and Evaluation of Narcotic and Psychotropic DrugsXuzhou Medical UniversityXuzhouChina
| | - He Huang
- Jiangsu Province Key Laboratory of Anesthesiology, Jiangsu Province Key Laboratory of Anesthesia and Analgesia Application Technology, NMPA Key Laboratory for Research and Evaluation of Narcotic and Psychotropic DrugsXuzhou Medical UniversityXuzhouChina
| | - Shuai Li
- Department of Anesthesiology, National Cancer Center/National Clinical Research Center for Cancer/Cancer HospitalChinese Academy of Medical Sciences and Peking Union Medical CollegeBeijingChina
| | - Hui Zheng
- Department of Anesthesiology, National Cancer Center/National Clinical Research Center for Cancer/Cancer HospitalChinese Academy of Medical Sciences and Peking Union Medical CollegeBeijingChina
| | - Yuqing Wu
- Jiangsu Province Key Laboratory of Anesthesiology, Jiangsu Province Key Laboratory of Anesthesia and Analgesia Application Technology, NMPA Key Laboratory for Research and Evaluation of Narcotic and Psychotropic DrugsXuzhou Medical UniversityXuzhouChina
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Liu Y, Guo W, Hong SL. Aerobic exercise mitigates hippocampal neuronal apoptosis by regulating DAPK1/CDKN2A/REDD1/FoXO1/FasL signaling pathway in D-galactose-induced aging mice. FASEB J 2023; 37:e23205. [PMID: 37768886 DOI: 10.1096/fj.202300847rr] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2023] [Revised: 08/25/2023] [Accepted: 09/06/2023] [Indexed: 09/30/2023]
Abstract
Brain aging is the most important risk factor for neurodegenerative disorders, and abnormal apoptosis is linked to neuronal dysfunction. Specifically, studies have found that exercise effectively inhibits hippocampal neuronal apoptosis, while the molecular mechanism remains unclear. In the present study, we investigated the impact of aerobic exercise on hippocampal neuronal apoptosis in aging mice and the potential involvement of DAPK1 and its downstream pathways based on recent data that DAPK1 may be associated with neuronal death in neurodegenerative diseases. Senescent mice were subjected to 8 weeks of Aerobic training. Following behavioral testing, hippocampal samples were examined histologically and biochemically to detect pathological changes, neuronal apoptosis, and mRNA and protein levels. We found that the exercise intervention improved spatial memory and alleviated neuronal apoptosis in the brain. Notably, exercise down-regulated DAPK1 expression and inhibited Fas death receptor transactivation and the mitochondrial apoptotic pathway in the hippocampus. These results shed new light on the protective effect of regular exercise against brain aging though modulating the DAPK1 pathway.
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Affiliation(s)
- Yang Liu
- Key Laboratory of Physical Fitness and Exercise Rehabilitation of Hunan Province, College of Physical Education, Hunan Normal University, Changsha, China
| | - Wen Guo
- Key Laboratory of Physical Fitness and Exercise Rehabilitation of Hunan Province, College of Physical Education, Hunan Normal University, Changsha, China
| | - Si-Lu Hong
- Key Laboratory of Physical Fitness and Exercise Rehabilitation of Hunan Province, College of Physical Education, Hunan Normal University, Changsha, China
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Wu GH, Guo QH, Xu XD, Lin JC, You GT, Lin CH, Zhang LC. Ketamine exerts dual effects on the apoptosis of primary cultured hippocampal neurons from fetal rats in vitro. Metab Brain Dis 2023; 38:2417-2426. [PMID: 37273081 DOI: 10.1007/s11011-023-01236-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/06/2022] [Accepted: 05/16/2023] [Indexed: 06/06/2023]
Abstract
Ketamine, a noncompetitive N-methyl D-aspartate (NMDA) receptor antagonist, is widely used in pediatric clinical practice. The neuroprotective and neurotoxic effects of ketamine on brain neurons during development remain controversial. The reason may be related to the different concentrations of ketamine used in practice and the small range of concentrations used in previous studies. In this study, cultured hippocampal neurons were treated with ketamine in a wide range of concentrations to comprehensively observe the effects of different concentrations of ketamine on neurons. We demonstrated that low concentrations of ketamine (10 μM, 100 μM and 1000 μM) promoted neuronal survival (p < 0.05) and reduced neuronal apoptosis (p < 0.05) compared with those of the control group. High concentrations of ketamine (2000 μM, 2500 μM and 3000 μM) reduced neuronal survival (p < 0.05) and promoted neuronal apoptosis (p < 0.05). The p38 MAPK inhibitor SB203580 reduced neuronal apoptosis induced by high concentrations of ketamine (2500 μM) (p < 0.05). Our findings indicate that ketamine exerts a dual effect on the apoptosis of primary cultured fetal rat hippocampal neurons in vitro and that the neurotoxic effects of ketamine are related to activation of the p38 MAPK signaling pathway.
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Affiliation(s)
- Guo-Hua Wu
- Fujian Provincial Key Laboratory of Burn and Trauma, Fujian Burn Institute, Fujian Burn Medical Center, Fujian Medical University Union Hospital, Fuzhou, 350001, Fujian, China
| | - Que-Hui Guo
- Department of Ultrasound, the Second Affiliated Hospital of Fujian University of Traditional Chinese Medicine, Fuzhou, 350003, Fujian, China
| | - Xiao-Dong Xu
- Department of Anesthesiology, Fujian Medical University Union Hospital, No. 29 Xinquan Road, Fujian, 350001, Fuzhou, China
| | - Jian-Chang Lin
- Fujian Provincial Key Laboratory of Burn and Trauma, Fujian Burn Institute, Fujian Burn Medical Center, Fujian Medical University Union Hospital, Fuzhou, 350001, Fujian, China
| | - Gui-Ting You
- Department of Neurosurgery, Fujian Medical University Union Hospital, No. 29 Xinquan Road, Fuzhou, 350001, Fujian, China
| | - Cai-Hou Lin
- Department of Neurosurgery, Fujian Medical University Union Hospital, No. 29 Xinquan Road, Fuzhou, 350001, Fujian, China.
| | - Liang-Cheng Zhang
- Department of Anesthesiology, Fujian Medical University Union Hospital, No. 29 Xinquan Road, Fujian, 350001, Fuzhou, China.
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Deng D, Xie J, Tian Y, Zhu L, Liu X, Liu J, Huang G, Li J. Effects of meiotic stage-specific oocyte vitrification on mouse oocyte quality and developmental competence. Front Endocrinol (Lausanne) 2023; 14:1200051. [PMID: 37455899 PMCID: PMC10338221 DOI: 10.3389/fendo.2023.1200051] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/04/2023] [Accepted: 06/05/2023] [Indexed: 07/18/2023] Open
Abstract
Introduction Acquisition of germinal vesicle (GV) stage oocytes for fertility preservation (FP) offers several benefits over in vivo matured oocyte cryopreservation following ovarian stimulation, particularly for cancer patients necessitating immediate treatment. Two FP approaches for GV oocytes are available: vitrification before in vitro maturation (IVM) at the GV stage (GV-VI) or post-IVM at the metaphase II (MII) stage (MII-VI). The optimal method remains to be determined. Methods In this study, mouse oocytes were collected without hormonal stimulation and vitrified either at the GV stage or the MII stage following IVM; non-vitrified in vitro matured MII oocytes served as the control (CON). The oocyte quality and developmental competence were assessed to obtain a better method for immediate FP. Results No significant differences in IVM and survival rates were observed among the three groups. Nevertheless, GV-VI oocytes exhibited inferior quality, including abnormal spindle arrangement, mitochondrial dysfunction, and early apoptosis, compared to MII-VI and CON oocytes. Oocyte vitrification at the GV stage impacted maternal mRNA degradation during IVM. In addition, the GV-VI group demonstrated significantly lower embryonic developmental competence relative to the MII-VI group. RNA sequencing of 2-cell stage embryos revealed abnormal minor zygotic genome activation in the GV-VI group. Conclusion Vitrification at the GV stage compromised oocyte quality and reduced developmental competence. Consequently, compared to the GV stage, oocyte vitrification at the MII stage after IVM is more suitable for patients who require immediate FP.
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Affiliation(s)
- Dongmei Deng
- Chongqing Key Laboratory of Human Embryo Engineering, Center for Reproductive Medicine, Chongqing Health Center for Women and Children, Chongqing, China
- Chongqing Clinical Research Center for Reproductive Medicine, Center for Reproductive Medicine, Women and Children’s Hospital of Chongqing Medical University, Chongqing, China
| | - Juan Xie
- Chongqing Key Laboratory of Human Embryo Engineering, Center for Reproductive Medicine, Chongqing Health Center for Women and Children, Chongqing, China
- Chongqing Clinical Research Center for Reproductive Medicine, Center for Reproductive Medicine, Women and Children’s Hospital of Chongqing Medical University, Chongqing, China
| | - Yin Tian
- Chongqing Key Laboratory of Human Embryo Engineering, Center for Reproductive Medicine, Chongqing Health Center for Women and Children, Chongqing, China
- Chongqing Clinical Research Center for Reproductive Medicine, Center for Reproductive Medicine, Women and Children’s Hospital of Chongqing Medical University, Chongqing, China
| | - Ling Zhu
- Chongqing Key Laboratory of Human Embryo Engineering, Center for Reproductive Medicine, Chongqing Health Center for Women and Children, Chongqing, China
- Chongqing Clinical Research Center for Reproductive Medicine, Center for Reproductive Medicine, Women and Children’s Hospital of Chongqing Medical University, Chongqing, China
| | - Xuemei Liu
- Chongqing Key Laboratory of Human Embryo Engineering, Center for Reproductive Medicine, Chongqing Health Center for Women and Children, Chongqing, China
- Chongqing Clinical Research Center for Reproductive Medicine, Center for Reproductive Medicine, Women and Children’s Hospital of Chongqing Medical University, Chongqing, China
| | - Junxia Liu
- Chongqing Key Laboratory of Human Embryo Engineering, Center for Reproductive Medicine, Chongqing Health Center for Women and Children, Chongqing, China
- Chongqing Clinical Research Center for Reproductive Medicine, Center for Reproductive Medicine, Women and Children’s Hospital of Chongqing Medical University, Chongqing, China
| | - Guoning Huang
- Chongqing Key Laboratory of Human Embryo Engineering, Center for Reproductive Medicine, Chongqing Health Center for Women and Children, Chongqing, China
- Chongqing Clinical Research Center for Reproductive Medicine, Center for Reproductive Medicine, Women and Children’s Hospital of Chongqing Medical University, Chongqing, China
| | - Jingyu Li
- Chongqing Key Laboratory of Human Embryo Engineering, Center for Reproductive Medicine, Chongqing Health Center for Women and Children, Chongqing, China
- Chongqing Clinical Research Center for Reproductive Medicine, Center for Reproductive Medicine, Women and Children’s Hospital of Chongqing Medical University, Chongqing, China
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Guo Z. Ganglioside GM1 and the Central Nervous System. Int J Mol Sci 2023; 24:ijms24119558. [PMID: 37298512 DOI: 10.3390/ijms24119558] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2023] [Revised: 04/18/2023] [Accepted: 05/04/2023] [Indexed: 06/12/2023] Open
Abstract
GM1 is one of the major glycosphingolipids (GSLs) on the cell surface in the central nervous system (CNS). Its expression level, distribution pattern, and lipid composition are dependent upon cell and tissue type, developmental stage, and disease state, which suggests a potentially broad spectrum of functions of GM1 in various neurological and neuropathological processes. The major focus of this review is the roles that GM1 plays in the development and activities of brains, such as cell differentiation, neuritogenesis, neuroregeneration, signal transducing, memory, and cognition, as well as the molecular basis and mechanisms for these functions. Overall, GM1 is protective for the CNS. Additionally, this review has also examined the relationships between GM1 and neurological disorders, such as Alzheimer's disease, Parkinson's disease, GM1 gangliosidosis, Huntington's disease, epilepsy and seizure, amyotrophic lateral sclerosis, depression, alcohol dependence, etc., and the functional roles and therapeutic applications of GM1 in these disorders. Finally, current obstacles that hinder more in-depth investigations and understanding of GM1 and the future directions in this field are discussed.
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Affiliation(s)
- Zhongwu Guo
- Department of Chemistry, University of Florida, Gainesville, FL 32611, USA
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7
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Schneider JS. GM1 Ganglioside as a Disease-Modifying Therapeutic for Parkinson's Disease: A Multi-Functional Glycosphingolipid That Targets Multiple Parkinson's Disease-Relevant Pathogenic Mechanisms. Int J Mol Sci 2023; 24:9183. [PMID: 37298133 PMCID: PMC10252733 DOI: 10.3390/ijms24119183] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2023] [Revised: 05/18/2023] [Accepted: 05/19/2023] [Indexed: 06/12/2023] Open
Abstract
Parkinson's disease (PD) is a progressive neurodegenerative disorder affecting millions of patients worldwide. Many therapeutics are available for treating PD symptoms but there is no disease-modifying therapeutic that has been unequivocally shown to slow or stop the progression of the disease. There are several factors contributing to the failure of many putative disease-modifying agents in clinical trials and these include the choice of patients and clinical trial designs for disease modification trials. Perhaps more important, however, is the choice of therapeutic, which for the most part, has not taken into account the multiple and complex pathogenic mechanisms and processes involved in PD. This paper discusses some of the factors contributing to the lack of success in PD disease-modification trials, which have mostly investigated therapeutics with a singular mechanism of action directed at one of the many PD pathogenic processes, and suggests that an alternative strategy for success may be to employ multi-functional therapeutics that target multiple PD-relevant pathogenic mechanisms. Evidence is presented that the multi-functional glycosphingolipid GM1 ganglioside may be just such a therapeutic.
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Affiliation(s)
- Jay S Schneider
- Department of Pathology and Genomic Medicine, Thomas Jefferson University, Philadelphia, PA 19107, USA
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Zhang R, Wang X, Xie Z, Cao T, Jiang S, Huang L. Lipoxin A4 methyl ester attenuated ketamine-induced neurotoxicity in SH-SY5Y cells via regulating leptin pathway. Toxicol In Vitro 2023; 89:105581. [PMID: 36907275 DOI: 10.1016/j.tiv.2023.105581] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2022] [Revised: 02/18/2023] [Accepted: 03/08/2023] [Indexed: 03/13/2023]
Abstract
Ketamine, the widely used intravenous anesthetic, has been reported to cause neurotoxicity and disturbs normal neurogenesis. However, the efficacy of current treatment strategies targeting ketamine's neurotoxicity remains limited. Lipoxin A4 methyl ester (LXA4 ME) is relatively stable lipoxin analog, which serves an important role in protecting against early brain injury. The purpose of this study was to investigate the protective effect of LXA4 ME on ketamine-caused cytotoxicity in SH-SY5Y cells, as well as the underlying mechanisms. Cell viability, apoptosis and endoplasmic reticulum stress (ER stress) were detected by adopting experimental techniques including CCK-8 assay, flow cytometry, western blotting and transmission electron microscope. Furthermore, examining the expression of leptin and its receptor (LepRb), we also measured the levels of activation of the leptin signaling pathway. Our results showed that LXA4 ME intervention promoted the cell viability, inhibited cell apoptosis, and reduced the expression of ER stress related protein and morphological changes induced by ketamine. In addition, inhibition of leptin signaling pathway caused by ketamine could be reversed by LXA4 ME. However, as the specific inhibitor of leptin pathway, leptin antagonist triple mutant human recombinant (leptin tA) attenuated the cytoprotective effect of LXA4 ME against ketamine-induced neurotoxicity. In conclusion, our findings demonstrated LXA4 ME could exert a neuroprotective effect on ketamine-induced neuronal injury via activation of the leptin signaling pathway.
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Affiliation(s)
- Rui Zhang
- Department of Anesthesiology, The Second Hospital of Hebei Medical University, No 215 Heping west road, Shijiazhuang, Hebei, China; Qilu Hospital of Shandong University Dezhou Hospital (Dezhou People's Hospital), No. 1166, Dongfanghong West Road, Decheng District, Dezhou City, Shandong Province, China
| | - Xueji Wang
- Department of Anesthesiology, The Second Hospital of Hebei Medical University, No 215 Heping west road, Shijiazhuang, Hebei, China; Hebei Medical University, No.48, Donggang Road, Shijiazhuang, Hebei, China
| | - Ziyu Xie
- Hebei Medical University, No.48, Donggang Road, Shijiazhuang, Hebei, China
| | - Tianyu Cao
- Department of Anesthesiology, The Second Hospital of Hebei Medical University, No 215 Heping west road, Shijiazhuang, Hebei, China
| | - Sufang Jiang
- Department of Anesthesiology, The Second Hospital of Hebei Medical University, No 215 Heping west road, Shijiazhuang, Hebei, China
| | - Lining Huang
- Department of Anesthesiology, The Second Hospital of Hebei Medical University, No 215 Heping west road, Shijiazhuang, Hebei, China.
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She YJ, Pan J, Peng LM, Ma L, Guo X, Lei DX, Wang HZ. Ketamine modulates neural stem cell differentiation by regulating TRPC3 expression through the GSK3β/β-catenin pathway. Neurotoxicology 2023; 94:1-10. [PMID: 36334642 DOI: 10.1016/j.neuro.2022.10.018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2022] [Revised: 10/24/2022] [Accepted: 10/31/2022] [Indexed: 11/06/2022]
Abstract
Ketamine, a popular anesthetic, is often abused by people for its hallucinogenic effect. Thus, the safety of ketamine in pediatric populations has been called into question for potential neurotoxic effects. However, ketamine also has neuroprotective effects in many brain injury models. The differentiation of neural stem cells (NSCs) was influenced significantly by ketamine, but the molecular mechanism is still unclear. NSCs were extracted from the hippocampi of postnatal day 1 rats and treated with ketamine to induce NSCs differentiation. Our results found that ketamine promoted neuronal differentiation of NSCs dose-dependently in a small dose range (P < 0.001). The main types of neurons from NSCs were cholinergic (51 ± 4 %; 95 % CI: 41-61 %) and glutamatergic neurons (34 ± 3 %; 95 % CI: 27-42 %). Furthermore, we performed RNA sequencing to promise a more comprehensive understanding of the molecules regulated by ketamine. Finally, we combined bioimaging and multiple molecular biology techniques to clarify that ketamine influences NSC differentiation by regulating transient receptor potential canonical 3 (TRPC3) expressions. Ketamine dramatically repressed TRPC3 expression (MD [95 % CI]=0.67 [0.40-0.95], P < 0.001) with a significant increase of phosphorylated glycogen synthase kinase 3β (p-GSK3β; MD [95 % CI]=1.00 [0.74-1.27], P < 0.001) and a decrease of β-catenin protein expression (MD [95 % CI]=0.60 [0.32-0.89], P = 0.001), thereby promoting the differentiation of NSCs into neurons and inhibiting their differentiation into astrocytes. These results suggest that TRPC3 is necessary for ketamine to modulate NSC differentiation, which occurs partly via regulation of the GSK3β/β-catenin pathway.
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Affiliation(s)
- Ying-Jun She
- Department of Anesthesiology and Perioperative Medicine, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, China
| | - Junping Pan
- Department of Pharmacology, College of Basic Medicine, Jinan University, Guangzhou, China
| | - Liang-Ming Peng
- Department of Anesthesiology and Perioperative Medicine, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, China
| | - Li Ma
- Department of Cardiac Surgery, Guangzhou Women and Children's Medical Center, Guangzhou, China
| | - Xinying Guo
- Department of Anesthesiology and Perioperative Medicine, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, China
| | - Dong-Xu Lei
- Department of Anesthesiology and Perioperative Medicine, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, China
| | - Huai-Zhen Wang
- Department of Anesthesiology and Perioperative Medicine, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, China.
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Anti-Inflammation and Anti-Pyroptosis Activities of Mangiferin via Suppressing NF-κB/NLRP3/GSDMD Signaling Cascades. Int J Mol Sci 2022; 23:ijms231710124. [PMID: 36077522 PMCID: PMC9456045 DOI: 10.3390/ijms231710124] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2022] [Revised: 08/30/2022] [Accepted: 09/01/2022] [Indexed: 11/16/2022] Open
Abstract
Mangiferin (MF), a xanthone that extensively exists in many herbal medicines, processes significant activities of anti-inflammation and immunomodulation. The potential regulatory effect and mechanism of mangiferin on cell pyroptosis remain unclear. In this study, mouse bone-marrow-derived macrophages (BMDMs) were stimulated with 1 μg/mL LPS to induce cell pyroptosis and were treated with 10, 50, or 100 μg/mL MF for regulating pyroptosis. The cell supernatants TNF-α, IL-1β, IL-6, and IL-18 were detected by enzyme-linked immunosorbent assay (ELISA); gene expression of TNF-α, IL-1β, IL-6, IL-18, Caspase-1, Caspase-11, and gasdermin D (GSDMD) was tested by real-time polymerase chain reaction (RT-PCR), and protein expression levels of apoptosis-associated speck-like protein containing a caspase-recruitment domain (ASC), nod-like receptor protein-3 (NLRP3), caspase-1, caspase-11, GSDMD, and NF-κB were detected by Western blot. The results showed that MF significantly inhibited the secretion and gene expression of TNF-α, IL-6, IL-1β, and IL-18 that were elevated by LPS. Moreover, MF significantly suppressed the gene expression of Caspase-1, Caspase-11, and GSDMD, and decreased the protein levels of NLRP3, caspase-1, caspase-11, full-length GSDMD (GSDMD-FL), GSDMD N-terminal (GSDMD-N), and NF-κB. In conclusion, mangiferin has a multi-target regulating effect on inflammation and pyroptosis by inhibiting the NF-κB pathway, suppressing inflammatory caspase-mediated pyroptosis cascades, and reducing GSDMD cleavage in LPS-induced BMDMs.
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Design, synthesis and neurite outgrowth activity of novel ganglioside GM1 derivatives by remodeling of the fatty acid moiety. Eur J Med Chem 2022; 241:114636. [DOI: 10.1016/j.ejmech.2022.114636] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2022] [Revised: 07/21/2022] [Accepted: 07/25/2022] [Indexed: 11/22/2022]
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Inhibition of the NLRP3/caspase-1 signaling cascades ameliorates ketamine-induced renal injury and pyroptosis in neonatal rats. Biomed Pharmacother 2022; 152:113229. [PMID: 35679721 DOI: 10.1016/j.biopha.2022.113229] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2022] [Revised: 05/22/2022] [Accepted: 05/31/2022] [Indexed: 11/21/2022] Open
Abstract
Ketamine is a widely-used anesthetic in the field of pediatrics and obstetrics. Multiple studies have revealed that ketamine causes neurotoxicity in developing animals. However, further studies are needed to determine whether clinical doses of ketamine (20 mg/kg) are able to cause kidney damage in developing animals. Herein, we investigated the effects of continuous ketamine exposure on kidney injury and pyroptosis in seven-day-old rats. Serum renal function indicators, renal histopathological analysis, pyroptosis, as well as oxidative stress indicators, were tested. Additionally, the NLRP3 inhibitor MCC950 and the Caspase-1 inhibitor VX765 were used to evaluate the role of the NLRP3/Caspase-1 axis in ketamine-induced kidney injury among developing rats. Our findings indicate that ketamine exposure causes renal histopathological injury, increased the levels of blood urea nitrogen (BUN) and creatinine (Cre), and led to upregulation in the levels of pyroptosis. Furthermore, we found that ketamine induced an increase in levels of reactive oxygen species (ROS) and malonaldehyde (MDA), as well as a decrease in the content of glutathione (GSH) and catalase (CAT) in the kidneys of neonatal rats. Moreover, targeting NLRP3 and caspase-1 with MCC950 or VX765 improved pyroptosis and reduced renal damage after continuous ketamine exposure. In conclusion, this study suggested that continued exposure to ketamine caused kidney damage among neonatal rats and that the NLRP3/Caspase-1 axis-related pyroptosis may be involved in this process.
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Wang Q, Li Y, Tan H, Wang Y. Sevoflurane-Induced Apoptosis in the Mouse Cerebral Cortex Follows Similar Characteristics of Physiological Apoptosis. Front Mol Neurosci 2022; 15:873658. [PMID: 35465098 PMCID: PMC9024292 DOI: 10.3389/fnmol.2022.873658] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2022] [Accepted: 03/17/2022] [Indexed: 11/13/2022] Open
Abstract
General anesthetics are capable of inducing neuronal apoptosis during the rapid synaptogenesis of immature mammalian brains. In this vulnerable time window, physiological apoptosis also occurs to eliminate excess and inappropriately integrated neurons. We previously showed that physiological and ketamine-induced apoptosis in mouse primary somatosensory cortex (S1) followed similar developmental patterns. However, since sevoflurane is more widely used in pediatric anesthesia, and targets mainly on different receptors, as compared with ketamine, it is important to determine whether sevoflurane-induced apoptosis also follows similar developmental patterns as physiological apoptosis or not. Mice at postnatal days 5 (P5) and P9 were anesthetized with 1.5% sevoflurane for 4 h, and the apoptotic neurons in S1 were quantitated by immunohistochemistry. The results showed that sevoflurane raised the levels of apoptosis in S1 without interfering with the developmental patterns of physiological apoptosis. The cells more vulnerable to both physiological and sevoflurane-induced apoptosis shifted from layer V pyramidal neurons at P5 to layers II–IV GABAergic neurons by P9. The magnitude of both sevoflurane-induced and physiological apoptosis was more attenuated at P9 than P5. To determine whether the Akt-FoxO1-PUMA pathway contributes to the developmental decrease in magnitude of both physiological and sevoflurane-induced apoptosis, Western blot was used to measure the levels of related proteins in S1 of P5 and P9 mice. We observed higher levels of antiapoptotic phosphorylated Akt (p-Akt) and phosphorylated FoxO1 (p-FoxO1), and lower levels of the downstream proapoptotic factor PUMA in control and anesthetized mice at P9 than P5. In addition, the Akt-FoxO1-PUMA pathway may also be responsible for sevoflurane-induced apoptosis. Together, these results suggest that magnitude, lamination pattern and cell-type specificity to sevoflurane-induced apoptosis are age-dependent and follow physiological apoptosis pattern. Moreover, The Akt-FoxO1-PUMA pathway may mediate the developmental decreases in magnitude of both physiological and sevoflurane-induced apoptosis in neonatal mouse S1.
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Zakharova IO, Bayunova LV, Zorina II, Shpakov AO, Avrova NF. Insulin and Brain Gangliosides Prevent Metabolic Disorders Caused by Activation of Free Radical Reactions after Two-Vessel Ischemia–Reperfusion Injury to the Rat Forebrain. J EVOL BIOCHEM PHYS+ 2022. [DOI: 10.1134/s0022093022010240] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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15
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Chen Y, Li L, Zhang J, Cui H, Wang J, Wang C, Shi M, Fan H. Dexmedetomidine Alleviates Lipopolysaccharide-Induced Hippocampal Neuronal Apoptosis via Inhibiting the p38 MAPK/c-Myc/CLIC4 Signaling Pathway in Rats. Mol Neurobiol 2021; 58:5533-5547. [PMID: 34363182 DOI: 10.1007/s12035-021-02512-9] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2021] [Accepted: 08/02/2021] [Indexed: 12/11/2022]
Abstract
Dexmedetomidine (DEX) has multiple biological effects. Here, we investigated the neuroprotective role and molecular mechanism of DEX against lipopolysaccharide (LPS)-induced hippocampal neuronal apoptosis. Sprague Dawley rats were intraperitoneally injected with LPS (10 mg/kg) and/or DEX (30 µg/kg). We found that DEX improved LPS-induced alterations of hippocampal microstructure (necrosis and neuronal loss in the CA1 and CA3 regions) and ultrastructure (mitochondrial damage). DEX also attenuated LPS-induced inflammation and hippocampal apoptosis by inhibiting the increase of interleukin-1β, interleukin-6, interleukin-18, and tumor necrosis factor-α levels and downregulating the expression of mitochondrial apoptosis pathway-related proteins. Moreover, DEX prevented the LPS-induced activation of the c-Myc/chloride intracellular channel 4 (CLIC4) pathway. DEX inhibited the p38 MAPK pathway, but not JNK and ERK. To further clarify whether DEX alleviated LPS-induced neuronal apoptosis through the p38 MAPK/c-Myc/CLIC4 pathway, we treated PC12 cells with p38 MAPK inhibitor SB203582 (10 µM). DEX had the same effect as SB203582 in reducing the protein and mRNA expression of c-Myc and CLIC4. Furthermore, DEX and SB203582 diminished LPS-induced apoptosis, indicated by decreased Bax and Tom20 fluorescent double-stained cells, reduced annexin V-FITC/PI apoptosis rate, and reduced protein expression levels of Bax, cytochrome C, cleaved caspase-9, and cleaved caspase-3. Taken together, the findings indicate that DEX attenuates LPS-induced hippocampal neuronal apoptosis by regulating the p38 MAPK/c-Myc/CLIC4 signaling pathway. These findings provide new insights into the mechanism of Alzheimer's disease and depression and may help aid in drug development for these diseases.
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Affiliation(s)
- Yongping Chen
- College of Veterinary Medicine, Northeast Agricultural University, Heilongjiang Province, Harbin, 150030, People's Republic of China
| | - Lin Li
- College of Veterinary Medicine, Northeast Agricultural University, Heilongjiang Province, Harbin, 150030, People's Republic of China
| | - Jiuyan Zhang
- College of Veterinary Medicine, Northeast Agricultural University, Heilongjiang Province, Harbin, 150030, People's Republic of China
| | - Hailin Cui
- College of Veterinary Medicine, Northeast Agricultural University, Heilongjiang Province, Harbin, 150030, People's Republic of China
| | - Jiucheng Wang
- College of Veterinary Medicine, Northeast Agricultural University, Heilongjiang Province, Harbin, 150030, People's Republic of China
| | - Chuqiao Wang
- College of Veterinary Medicine, Northeast Agricultural University, Heilongjiang Province, Harbin, 150030, People's Republic of China
| | - Mingxian Shi
- College of Veterinary Medicine, Northeast Agricultural University, Heilongjiang Province, Harbin, 150030, People's Republic of China
| | - Honggang Fan
- College of Veterinary Medicine, Northeast Agricultural University, Heilongjiang Province, Harbin, 150030, People's Republic of China.
- Heilongjiang Key Laboratory for Laboratory Animals and Comparative Medicine, Northeast Agricultural University, Harbin, 150030, People's Republic of China.
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Zhang Z, Bai H, Ma X, Shen M, Li R, Qiu D, Li S, Gao L. Blockade of the NLRP3/caspase-1 axis attenuates ketamine-induced hippocampus pyroptosis and cognitive impairment in neonatal rats. J Neuroinflammation 2021; 18:239. [PMID: 34666787 PMCID: PMC8527745 DOI: 10.1186/s12974-021-02295-9] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2021] [Accepted: 10/11/2021] [Indexed: 01/23/2023] Open
Abstract
Background Multiple studies have revealed that repeated or long-term exposure to ketamine causes neurodegeneration and cognitive dysfunction. Pyroptosis is an inflammatory form of programmed cell death that has been linked to various neurological diseases. However, the role of NLRP3/caspase-1 axis-related pyroptosis in ketamine-induced neurotoxicity and cognitive dysfunction remains uncertain. Methods To evaluate whether ketamine caused NLRP3/caspase1-dependent pyroptosis, flow cytometry analysis, western blotting, ELISA test, histopathological analysis, Morris water maze (MWM) test, cell viability assay, and lactate dehydrogenase release (LDH) assay were carried out on PC12 cells, HAPI cells, and 7-day-old rats. In addition, the NLRP3 inhibitor MCC950 or the caspase-1 inhibitor VX-765 was used to investigate the role of the NLRP3/caspase-1 axis in ketamine-induced neurotoxicity and cognitive dysfunction. Results Our findings demonstrated that ketamine exposure caused cell damage and increased the levels of pyroptosis in PC12 cells, HAPI cells, and the hippocampus of neonatal rats. After continuous exposure to ketamine, targeting NLRP3 and caspase-1 with MCC950 or VX765 improved pyroptosis, reduced neuropathological damages, and alleviated cognitive dysfunction. Conclusion NLRP3/Caspase-1 axis-dependent pyroptosis is involved in ketamine-induced neuroinflammation and cognitive dysfunction, and it provides a promising strategy to treat ketamine-related neurotoxicity. Supplementary Information The online version contains supplementary material available at 10.1186/s12974-021-02295-9.
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Affiliation(s)
- Zhiheng Zhang
- College of Veterinary Medicine, Northeast Agricultural University, No. 600 Changjiang Rd, Xiangfang District, Harbin, 150030, China.,Heilongjiang Key Laboratory for Laboratory Animals and Comparative Medicine, College of Veterinary Medicine, Northeast Agriculture University, Harbin, China
| | - Hui Bai
- College of Veterinary Medicine, Northeast Agricultural University, No. 600 Changjiang Rd, Xiangfang District, Harbin, 150030, China.,Heilongjiang Key Laboratory for Laboratory Animals and Comparative Medicine, College of Veterinary Medicine, Northeast Agriculture University, Harbin, China
| | - Xiangying Ma
- College of Veterinary Medicine, Northeast Agricultural University, No. 600 Changjiang Rd, Xiangfang District, Harbin, 150030, China.,Heilongjiang Key Laboratory for Laboratory Animals and Comparative Medicine, College of Veterinary Medicine, Northeast Agriculture University, Harbin, China
| | - Meilun Shen
- College of Veterinary Medicine, Northeast Agricultural University, No. 600 Changjiang Rd, Xiangfang District, Harbin, 150030, China.,Heilongjiang Key Laboratory for Laboratory Animals and Comparative Medicine, College of Veterinary Medicine, Northeast Agriculture University, Harbin, China
| | - Rouqian Li
- College of Veterinary Medicine, Northeast Agricultural University, No. 600 Changjiang Rd, Xiangfang District, Harbin, 150030, China.,Heilongjiang Key Laboratory for Laboratory Animals and Comparative Medicine, College of Veterinary Medicine, Northeast Agriculture University, Harbin, China
| | - Di Qiu
- College of Veterinary Medicine, Northeast Agricultural University, No. 600 Changjiang Rd, Xiangfang District, Harbin, 150030, China.,Heilongjiang Key Laboratory for Laboratory Animals and Comparative Medicine, College of Veterinary Medicine, Northeast Agriculture University, Harbin, China
| | - Siyao Li
- College of Veterinary Medicine, Northeast Agricultural University, No. 600 Changjiang Rd, Xiangfang District, Harbin, 150030, China.,Heilongjiang Key Laboratory for Laboratory Animals and Comparative Medicine, College of Veterinary Medicine, Northeast Agriculture University, Harbin, China
| | - Li Gao
- College of Veterinary Medicine, Northeast Agricultural University, No. 600 Changjiang Rd, Xiangfang District, Harbin, 150030, China. .,Heilongjiang Key Laboratory for Laboratory Animals and Comparative Medicine, College of Veterinary Medicine, Northeast Agriculture University, Harbin, China.
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