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Gao X, Sun H, Wei Y, Niu J, Hao S, Sun H, Tang G, Qi C, Ge J. Protective effect of melatonin against metabolic disorders and neuropsychiatric injuries in type 2 diabetes mellitus mice. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2024; 131:155805. [PMID: 38851097 DOI: 10.1016/j.phymed.2024.155805] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/23/2024] [Revised: 05/11/2024] [Accepted: 06/03/2024] [Indexed: 06/10/2024]
Abstract
BACKGROUND Type 2 diabetes mellitus (T2DM) is a metabolic disease characterized by hyperglycemia and progressive cognitive dysfunction, and our clinical investigation revealed that the plasma concentration of melatonin (Mlt) decreased and was closely related to cognition in T2DM patients. However, although many studies have suggested that Mlt has a certain protective effect on glucose and lipid metabolism disorders and neuropsychiatric injury, the underlying mechanism of Mlt against T2DM-related metabolic and cognitive impairments remains unclear. PURPOSE The aim of the present study was to investigate the therapeutic effect of Mlt on metabolic disorders and Alzheimer's disease (AD)-like neuropsychiatric injuries in T2DM mice and to explore the possible underlying molecular mechanism involved. METHODS A T2DM mouse model was established by a combination of a high-fat diet (HFD) and streptozotocin (STZ, 100 mg/kg, i.p.), and Mlt (5, 10 or 20 mg/kg) was intragastrically administered for six consecutive weeks. The serum levels of glycolipid metabolism indicators were measured, behavioral performance was tested, and the protein expression of key molecules involved in the regulation of synaptic plasticity, circadian rhythms, and neuroinflammation in the hippocampus was detected. Moreover, the fluorescence intensities of glial fibrillary acidic protein (GFAP), ionized calcium binding adapter molecule 1 (IBA-1), amyloid β-protein (Aβ) and phosphorylated Tau (p-Tau) in the hippocampus were also observed. RESULTS Treatment with Mlt not only improved T2DM-related metabolic disorders, as indicated by increased serum concentrations of fasting blood glucose (FBG), glycosylated hemoglobin (HbAlc), insulin (INS), total cholesterol (TC) and triglyceride (TG), improved glucose tolerance and liver and pancreas function but also alleviated AD-like neuropsychiatric injuries in a HFD/STZ-induced mouse model, as indicated by decreased immobility time in the tail suspension test (TST) and forced swimming test (FST), increased preference indices of novel objects or novel arms in the novel object recognition test (NOR) and Y-maze test (Y-maze), and improved platform positioning capability in the Morris water maze (MWM) test. Moreover, treatment with Mlt also improved the hyperactivation of astrocytes and microglia in the hippocampus of mice, accompanied by reduced expression of interleukin 1β (IL-1β), interleukin 6 (IL-6), tumor necrosis factor (TNF-α), Aβ, and p-Tau and increased expression of brain-derived neurotrophic factor (BDNF), Synapsin I, Synaptotagmin I, melatonin receptor 1B (MT1B), brain muscle arnt-like protein 1 (Bmal1), circadian locomotor output cycles kaput (Clock), period 2 (Per2), and cryptochrome 2 (Cry2). CONCLUSION Mlt alleviated T2DM-related metabolic disorders and AD-like neuropsychiatric injuries in a HFD/STZ-induced mouse model, possibly through a mechanism involving the regulation of glial activation and associated neuroinflammation and the balancing of synaptic plasticity and circadian rhythms in the hippocampus.
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Affiliation(s)
- Xinran Gao
- School of Pharmacy, Anhui Medical University, 81 Meishan Road, Hefei 230032, PR China; The Key Laboratory of Anti-inflammatory and Immune Medicine, Ministry of Education, Anhui Medical University, Hefei, PR China; Anhui Provincial Laboratory of Inflammatory and Immune Disease, Anhui Institute of Innovative Drugs, Hefei, PR China
| | - Huaizhi Sun
- School of Pharmacy, Anhui Medical University, 81 Meishan Road, Hefei 230032, PR China; The Key Laboratory of Anti-inflammatory and Immune Medicine, Ministry of Education, Anhui Medical University, Hefei, PR China; Anhui Provincial Laboratory of Inflammatory and Immune Disease, Anhui Institute of Innovative Drugs, Hefei, PR China
| | - Yadong Wei
- School of Pharmacy, Anhui Medical University, 81 Meishan Road, Hefei 230032, PR China; The Key Laboratory of Anti-inflammatory and Immune Medicine, Ministry of Education, Anhui Medical University, Hefei, PR China; Anhui Provincial Laboratory of Inflammatory and Immune Disease, Anhui Institute of Innovative Drugs, Hefei, PR China
| | - Jiachun Niu
- School of Pharmacy, Anhui Medical University, 81 Meishan Road, Hefei 230032, PR China; The Key Laboratory of Anti-inflammatory and Immune Medicine, Ministry of Education, Anhui Medical University, Hefei, PR China; Anhui Provincial Laboratory of Inflammatory and Immune Disease, Anhui Institute of Innovative Drugs, Hefei, PR China
| | - Shengwei Hao
- School of Pharmacy, Anhui Medical University, 81 Meishan Road, Hefei 230032, PR China; The Key Laboratory of Anti-inflammatory and Immune Medicine, Ministry of Education, Anhui Medical University, Hefei, PR China; Anhui Provincial Laboratory of Inflammatory and Immune Disease, Anhui Institute of Innovative Drugs, Hefei, PR China
| | - Huimin Sun
- School of Pharmacy, Anhui Medical University, 81 Meishan Road, Hefei 230032, PR China; The Key Laboratory of Anti-inflammatory and Immune Medicine, Ministry of Education, Anhui Medical University, Hefei, PR China; Anhui Provincial Laboratory of Inflammatory and Immune Disease, Anhui Institute of Innovative Drugs, Hefei, PR China
| | - Guozhang Tang
- School of 1st Clinic Medicine, Anhui Medical University, 81 Meishan Road, Hefei 230032, PR China
| | - Congcong Qi
- Department of Laboratory Animal Science, Fudan University, Shanghai, PR China.
| | - Jinfang Ge
- School of Pharmacy, Anhui Medical University, 81 Meishan Road, Hefei 230032, PR China; The Key Laboratory of Anti-inflammatory and Immune Medicine, Ministry of Education, Anhui Medical University, Hefei, PR China; Anhui Provincial Laboratory of Inflammatory and Immune Disease, Anhui Institute of Innovative Drugs, Hefei, PR China.
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Hong H, Li J, Tong T, Yang T, Wang H, Xu Y, Lin X, Lin J, Liu S, Luo K, Yu Z, Yuan W, Pi H, Zhou Z. Paraquat disrupts KIF5A-mediated axonal mitochondrial transport in midbrain neurons and its antagonism by melatonin. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 934:173119. [PMID: 38750743 DOI: 10.1016/j.scitotenv.2024.173119] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/18/2024] [Revised: 05/07/2024] [Accepted: 05/08/2024] [Indexed: 05/20/2024]
Abstract
Paraquat (PQ) is a broad-spectrum herbicide used worldwide and is a hazardous chemical to human health. Cumulative evidence strengthens the association between PQ exposure and the development of Parkinson's disease (PD). However, the underlying mechanism and effective interventions against PQ-induced neurotoxicity remain unclear. In this study, C57BL/6 J mice were treated with PQ (i.p., 10 mg/kg, twice a week) and melatonin (i.g., 20 mg/kg, twice a week) for 8 weeks. Results showed that PQ-induced motor deficits and midbrain dopaminergic neuronal damage in C57BL/6 J mice were protected by melatonin pretreatment. In isolated primary midbrain neurons and SK-N-SH cells, reduction of cell viability, elevation of total ROS levels, axonal mitochondrial transport defects and mitochondrial dysfunction caused by PQ were attenuated by melatonin. After screening of expression of main motors driving axonal mitochondrial transport, data showed that PQ-decreased KIF5A expression in mice midbrain and in SK-N-SH cell was antagonized by melatonin. Using the in vitro KIF5A-overexpression model, it was found that KIF5A overexpression inhibited PQ-caused neurotoxicity and mitochondrial dysfunction in SK-N-SH cells. In addition, application of MTNR1B (MT2) receptor antagonist, 4-P-PDOT, significantly counteracted the protection of melatonin against PQ-induced neurotoxicity. Further, Kif5a-knockdown diminished melatonin-induced alleviation of motor deficits and neuronal damage against PQ in C57BL/6 J mice. The present study establishes a causal link between environmental neurotoxicants exposure and PD etiology and provides effective interventive targets in the pathogenesis of PD.
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Affiliation(s)
- Huihui Hong
- Department of Environmental Medicine, School of Medicine, Chongqing University, Chongqing, China
| | - Jingdian Li
- Department of Occupational Health, Third Military Medical University, Chongqing, China
| | - Tong Tong
- Department of Environmental Medicine, Zhejiang University School of Medicine, Hangzhou, China
| | - Ting Yang
- Department of Otolaryngology, Chongqing General Hospital, Chongqing University, China
| | - Hui Wang
- Department of Occupational Health, Third Military Medical University, Chongqing, China
| | - Yudong Xu
- Department of Environmental Medicine, Zhejiang University School of Medicine, Hangzhou, China
| | - Xiqin Lin
- Department of Environmental Medicine, Zhejiang University School of Medicine, Hangzhou, China
| | - Jinxian Lin
- Department of Environmental Medicine, School of Medicine, Chongqing University, Chongqing, China
| | - Sicheng Liu
- Department of Environmental Medicine, School of Medicine, Chongqing University, Chongqing, China
| | - Kun Luo
- Department of Environmental Medicine, School of Medicine, Chongqing University, Chongqing, China
| | - Zhengping Yu
- Department of Occupational Health, Third Military Medical University, Chongqing, China
| | - Wei Yuan
- Department of Otolaryngology, Chongqing General Hospital, Chongqing University, China.
| | - Huifeng Pi
- Department of Occupational Health, Third Military Medical University, Chongqing, China.
| | - Zhou Zhou
- Department of Environmental Medicine, School of Medicine, Chongqing University, Chongqing, China.
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Zhang Y, Wei R, Li Z, Li X, Zhang K, Ge Y, Kong X, Liu X, Chen G. Melatonin improves maternal sleep deprivation-induced learning and memory impairment, inflammation, and synaptic dysfunction in murine male adult offspring. Brain Behav 2024; 14:e3515. [PMID: 38702895 PMCID: PMC11069022 DOI: 10.1002/brb3.3515] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/06/2023] [Revised: 03/20/2024] [Accepted: 04/08/2024] [Indexed: 05/06/2024] Open
Abstract
INTRODUCTION Maternal sleep deprivation (MSD), which induces inflammation and synaptic dysfunction in the hippocampus, has been associated with learning and memory impairment in offspring. Melatonin (Mel) has been shown to have anti-inflammatory, antioxidant, and neuroprotective function. However, the beneficial effect of Mel on MSD-induced cognitive impairment and its mechanisms are unknown. METHODS In the present study, adult offspring suffered from MSD were injected with Mel (20 mg/kg) once a day during postnatal days 61-88. The cognitive function was evaluated by the Morris water maze test. Levels of proinflammatory cytokines were examined by enzyme-linked immunosorbent assay. The mRNA and protein levels of synaptic plasticity associated proteins were examined using reverse transcription-polymerase chain reaction and western blotting. RESULTS The results showed that MSD impaired learning and memory in the offspring mice. MSD increased the levels of interleukin (IL)-1creIL-6, and tumor necrosis factor-α and decreased the expression levels of brain-derived neurotrophic factor, tyrosine kinase receptor B, postsynaptic density protein-95, and synaptophysin in the hippocampus. Furthermore, Mel attenuated cognitive impairment and restored markers of inflammation and synaptic plasticity to control levels. CONCLUSIONS These findings indicated that Mel could ameliorate learning and memory impairment induced by MSD, and these beneficial effects were related to improvement in inflammation and synaptic dysfunction.
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Affiliation(s)
- Yue‐Ming Zhang
- Department of Neurology (Sleep Disorders)The Affiliated Chaohu Hospital of Anhui Medical UniversityHefeiAnhuiChina
| | - Ru‐Meng Wei
- Department of Neurology (Sleep Disorders)The Affiliated Chaohu Hospital of Anhui Medical UniversityHefeiAnhuiChina
| | - Zong‐Yin Li
- Department of Neurology (Sleep Disorders)The Affiliated Chaohu Hospital of Anhui Medical UniversityHefeiAnhuiChina
| | - Xue‐Yan Li
- Department of Neurology (Sleep Disorders)The Affiliated Chaohu Hospital of Anhui Medical UniversityHefeiAnhuiChina
| | - Kai‐Xuan Zhang
- Department of Neurology (Sleep Disorders)The Affiliated Chaohu Hospital of Anhui Medical UniversityHefeiAnhuiChina
| | - Yi‐Jun Ge
- Department of Neurology (Sleep Disorders)The Affiliated Chaohu Hospital of Anhui Medical UniversityHefeiAnhuiChina
| | - Xiao‐Yi Kong
- Department of Neurology (Sleep Disorders)The Affiliated Chaohu Hospital of Anhui Medical UniversityHefeiAnhuiChina
| | - Xue‐Chun Liu
- Department of NeurologyThe Second People's Hospital of HefeiHefei Hospital Affiliated to Anhui Medical UniversityHefeiAnhuiChina
| | - Gui‐Hai Chen
- Department of Neurology (Sleep Disorders)The Affiliated Chaohu Hospital of Anhui Medical UniversityHefeiAnhuiChina
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Jin Q, Ma F, Liu T, Yang L, Mao H, Wang Y, Peng L, Li P, Zhan Y. Sirtuins in kidney diseases: potential mechanism and therapeutic targets. Cell Commun Signal 2024; 22:114. [PMID: 38347622 PMCID: PMC10860260 DOI: 10.1186/s12964-023-01442-4] [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: 08/04/2023] [Accepted: 12/12/2023] [Indexed: 02/15/2024] Open
Abstract
Sirtuins, which are NAD+-dependent class III histone deacetylases, are involved in various biological processes, including DNA damage repair, immune inflammation, oxidative stress, mitochondrial homeostasis, autophagy, and apoptosis. Sirtuins are essential regulators of cellular function and organismal health. Increasing evidence suggests that the development of age-related diseases, including kidney diseases, is associated with aberrant expression of sirtuins, and that regulation of sirtuins expression and activity can effectively improve kidney function and delay the progression of kidney disease. In this review, we summarise current studies highlighting the role of sirtuins in renal diseases. First, we discuss sirtuin family members and their main mechanisms of action. We then outline the possible roles of sirtuins in various cell types in kidney diseases. Finally, we summarise the compounds that activate or inhibit sirtuin activity and that consequently ameliorate renal diseases. In conclusion, targeted modulation of sirtuins is a potential therapeutic strategy for kidney diseases. Video Abstract.
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Affiliation(s)
- Qi Jin
- Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, China
| | - Fang Ma
- Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, China
| | - Tongtong Liu
- Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, China
| | - Liping Yang
- Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, China
| | - Huimin Mao
- Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, China
| | - Yuyang Wang
- Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, China
| | - Liang Peng
- China-Japan Friendship Hospital, Institute of Clinical Medical Sciences, Beijing, China.
| | - Ping Li
- China-Japan Friendship Hospital, Institute of Clinical Medical Sciences, Beijing, China.
| | - Yongli Zhan
- Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, China.
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Yang Y, Jin Y, Zhu X, Rao Q, Zhao Z, Yang J. Hepatotoxicity evaluation and possible mechanisms of decabrominated diphenyl ethers (BDE-209) in broilers: Oxidative stress, inflammatory, and transcriptomics. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2023; 264:115460. [PMID: 37696076 DOI: 10.1016/j.ecoenv.2023.115460] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/13/2023] [Revised: 08/25/2023] [Accepted: 09/07/2023] [Indexed: 09/13/2023]
Abstract
Decabrominated diphenyl ether (BDE-209), a persistent organic pollutant, is linked to a great number of health problems, the most severe of which impact the liver due to its role in the elimination and degradation of exogenous harmful substances. Though the hepatotoxicity of BDE-209 has been observed, its underlying mechanism is yet unknown. The purpose of this study is to thoroughly investigate the hepatotoxicity of BDE-209 and its molecular processes in broilers by subjecting 120 male broilers to varied concentrations of BDE-209 for 42 days. We observed that the bioaccumulation of BDE-209 in the liver in a dose-dependent manner, and that BDE-209 exposure can raise the concentrations of ALT, AST, and GGT, accompanied by hepatocyte fatty degeneration and inflammatory foci. In the hepatic homogenates, oxidative stress was evidenced by elevated levels of MDA and ROS and decreased activies of SOD and CAT. Additionally, pro-inflammatory cytokines including IL-1, IL-1β, TNF-α, IL-8 levels were increased, whereas anti-inflammatory cytokine IL-4 level was declined. Furthermore, RNA sequencing revealed that genes involved in inflammation were considerably dysregulated, and real-time PCR verified the expressed alterations of numerous genes related to the MAPK and WNT signaling pathways. The protein concentrations of NF-κB, β-catenin, and WNT5A, and the phosphorylation levels of JNK and ERK were all dramatically enhanced. The current study indicates that BDE-209 exposure can cause hepatotoxicity in broilers via bioaccumulation and oxidative stress, which then activates the MAPK and WNT signaling pathways, subsequently generating inflammation and hepatic injury.
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Affiliation(s)
- Yi Yang
- Institute for Agri-Food Standard and Testing, Shanghai Academy of Agricultural Sciences, Shanghai 201403, China
| | - Yuhong Jin
- College of Food Science and Engineering, Shandong Agricultural University, Tai'an, Shandong 271018, China
| | - Xing Zhu
- College of Animal Science, Guizhou University, Guiyang, Guizhou 550025, China
| | - Qinxiong Rao
- Institute for Agri-Food Standard and Testing, Shanghai Academy of Agricultural Sciences, Shanghai 201403, China
| | - Zhihui Zhao
- Institute for Agri-Food Standard and Testing, Shanghai Academy of Agricultural Sciences, Shanghai 201403, China
| | - Junhua Yang
- Institute for Agri-Food Standard and Testing, Shanghai Academy of Agricultural Sciences, Shanghai 201403, China.
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