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Xu Q, Cheung RTF. Melatonin mitigates type 1 diabetes-aggravated cerebral ischemia-reperfusion injury through anti-inflammatory and anti-apoptotic effects. Brain Behav 2023; 13:e3118. [PMID: 37327371 PMCID: PMC10498092 DOI: 10.1002/brb3.3118] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/04/2022] [Revised: 05/15/2023] [Accepted: 05/31/2023] [Indexed: 06/18/2023] Open
Abstract
INTRODUCTION Cerebral ischemia and diabetes mellitus (DM) are common diseases that often coexist and interact with each other. DM doubles the risk of ischemic stroke, and cerebral ischemia causes stress-induced hyperglycemia. Most experimental stroke studies used healthy animals. Melatonin is neuroprotective against cerebral ischemia-reperfusion injury (CIRI) in non-DM, normoglycemic animals through anti-oxidant effect, anti-inflammation, and anti-apoptosis. Previous studies have also reported a negative correlation between hyperglycemia and urinary melatonin metabolite. OBJECTIVES The present study investigated the effects of type 1 DM (T1DM) on CIRI in rats and the role of melatonin against CIRI in T1DM animals. RESULTS Our results revealed that T1DM aggravated CIRI, leading to greater weight loss, increased infarct volume, and worse neurological deficit. T1DM aggravated the post-CIRI activation of nuclear factor kappa B (NF-κB) pathway and increase in pro-apoptotic markers. A single intraperitoneal injection of melatonin at 10 mg/kg given 30 min before ischemia onset attenuated CIRI in T1DM rats, resulting in less weight loss, decreased infarct volume, and milder neurological deficit when compared with the vehicle group. Melatonin treatment achieved anti-inflammatory and anti-apoptotic effects with reduced NF-κB pathway activation, reduced mitochondrial cytochrome C release, decreased calpain-mediated spectrin breakdown product (SBDP), and decreased caspase-3-mediated SBDP. The treatment also led to fewer iNOS+ cells, milder CD-68+ macrophage/microglia infiltration, decreased TUNEL+ apoptotic cells, and better neuronal survival. CONCLUSIONS T1DM aggravates CIRI. Melatonin treatment is neuroprotective against CIRI in T1DM rats via anti-inflammatory and anti-apoptotic effects.
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Affiliation(s)
- Qian Xu
- Department of Medicine, School of Clinical Medicine, Li Ka Shing Faculty of MedicineThe University of Hong KongHong Kong
| | - Raymond Tak Fai Cheung
- Department of Medicine, School of Clinical Medicine, Li Ka Shing Faculty of MedicineThe University of Hong KongHong Kong
- Research Centre of Heart, Brain, Hormone & Healthy Aging, Li Ka Shing Faculty of MedicineThe University of Hong KongHong Kong
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Haley MJ, White CS, Roberts D, O'Toole K, Cunningham CJ, Rivers-Auty J, O'Boyle C, Lane C, Heaney O, Allan SM, Lawrence CB. Stroke Induces Prolonged Changes in Lipid Metabolism, the Liver and Body Composition in Mice. Transl Stroke Res 2019; 11:837-850. [PMID: 31865538 PMCID: PMC7340675 DOI: 10.1007/s12975-019-00763-2] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2019] [Revised: 11/22/2019] [Accepted: 11/26/2019] [Indexed: 02/08/2023]
Abstract
During recovery, stroke patients are at risk of developing long-term complications that impact quality of life, including changes in body weight and composition, depression and anxiety, as well as an increased risk of subsequent vascular events. The aetiologies and time-course of these post-stroke complications have not been extensively studied and are poorly understood. Therefore, we assessed long-term changes in body composition, metabolic markers and behaviour after middle cerebral artery occlusion in mice. These outcomes were also studied in the context of obesity, a common stroke co-morbidity proposed to protect against post-stroke weight loss in patients. We found that stroke induced long-term changes in body composition, characterised by a sustained loss of fat mass with a recovery of lean weight loss. These global changes in response to stroke were accompanied by an altered lipid profile (increased plasma free fatty acids and triglycerides) and increased adipokine release at 60 days. After stroke, the liver also showed histological changes indicative of liver damage and a decrease in plasma alanine aminotransferase (ALT) was observed. Stroke induced depression and anxiety-like behaviours in mice, illustrated by deficits in exploration, nest building and burrowing behaviours. When initial infarct volumes were matched between mice with and without comorbid obesity, these outcomes were not drastically altered. Overall, we found that stroke induced long-term changes in depressive/anxiety-like behaviours, and changes in plasma lipids, adipokines and the liver that may impact negatively on future vascular health.
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Affiliation(s)
- Michael J Haley
- Division of Neuroscience and Experimental Psychology and Lydia Becker Institute of Immunology and Inflammation, Faculty of Biology, Medicine and Health, Manchester Academic Health Science Centre, The University of Manchester, Manchester, M13 9PT, UK
| | - Claire S White
- Division of Neuroscience and Experimental Psychology and Lydia Becker Institute of Immunology and Inflammation, Faculty of Biology, Medicine and Health, Manchester Academic Health Science Centre, The University of Manchester, Manchester, M13 9PT, UK
| | - Daisy Roberts
- Division of Neuroscience and Experimental Psychology and Lydia Becker Institute of Immunology and Inflammation, Faculty of Biology, Medicine and Health, Manchester Academic Health Science Centre, The University of Manchester, Manchester, M13 9PT, UK
| | - Kelly O'Toole
- Division of Neuroscience and Experimental Psychology and Lydia Becker Institute of Immunology and Inflammation, Faculty of Biology, Medicine and Health, Manchester Academic Health Science Centre, The University of Manchester, Manchester, M13 9PT, UK
| | - Catriona J Cunningham
- Division of Neuroscience and Experimental Psychology and Lydia Becker Institute of Immunology and Inflammation, Faculty of Biology, Medicine and Health, Manchester Academic Health Science Centre, The University of Manchester, Manchester, M13 9PT, UK
| | - Jack Rivers-Auty
- Division of Neuroscience and Experimental Psychology and Lydia Becker Institute of Immunology and Inflammation, Faculty of Biology, Medicine and Health, Manchester Academic Health Science Centre, The University of Manchester, Manchester, M13 9PT, UK
| | - Conor O'Boyle
- Division of Neuroscience and Experimental Psychology and Lydia Becker Institute of Immunology and Inflammation, Faculty of Biology, Medicine and Health, Manchester Academic Health Science Centre, The University of Manchester, Manchester, M13 9PT, UK
| | - Conor Lane
- Division of Neuroscience and Experimental Psychology and Lydia Becker Institute of Immunology and Inflammation, Faculty of Biology, Medicine and Health, Manchester Academic Health Science Centre, The University of Manchester, Manchester, M13 9PT, UK
| | - Oliver Heaney
- Division of Neuroscience and Experimental Psychology and Lydia Becker Institute of Immunology and Inflammation, Faculty of Biology, Medicine and Health, Manchester Academic Health Science Centre, The University of Manchester, Manchester, M13 9PT, UK
| | - Stuart M Allan
- Division of Neuroscience and Experimental Psychology and Lydia Becker Institute of Immunology and Inflammation, Faculty of Biology, Medicine and Health, Manchester Academic Health Science Centre, The University of Manchester, Manchester, M13 9PT, UK
| | - Catherine B Lawrence
- Division of Neuroscience and Experimental Psychology and Lydia Becker Institute of Immunology and Inflammation, Faculty of Biology, Medicine and Health, Manchester Academic Health Science Centre, The University of Manchester, Manchester, M13 9PT, UK.
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Tong Y, Elkin KB, Peng C, Shen J, Li F, Guan L, Ji Y, Wei W, Geng X, Ding Y. Reduced Apoptotic Injury by Phenothiazine in Ischemic Stroke through the NOX-Akt/PKC Pathway. Brain Sci 2019; 9:brainsci9120378. [PMID: 31847503 PMCID: PMC6955743 DOI: 10.3390/brainsci9120378] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2019] [Revised: 12/12/2019] [Accepted: 12/12/2019] [Indexed: 02/07/2023] Open
Abstract
Phenothiazine treatment has been shown to reduce post-stroke ischemic injury, though the underlying mechanism remains unclear. This study sought to confirm the neuroprotective effects of phenothiazines and to explore the role of the NOX (nicotinamide adenine dinucleotide phosphate oxidase)/Akt/PKC (protein kinase C) pathway in cerebral apoptosis. Sprague-Dawley rats underwent middle cerebral artery occlusion (MCAO) for 2 h and were randomly divided into 3 different cohorts: (1) saline, (2) 8 mg/kg chlorpromazine and promethazine (C+P), and (3) 8 mg/kg C+P as well as apocynin (NOX inhibitor). Brain infarct volumes were examined, and cell death/NOX activity was determined by assays. Western blotting was used to assess protein expression of kinase C-δ (PKC-δ), phosphorylated Akt (p-Akt), Bax, Bcl-XL, and uncleaved/cleaved caspase-3. Both C+P and C+P/NOX inhibitor administration yielded a significant reduction in infarct volumes and cell death, while the C+P/NOX inhibitor did not confer further reduction. In both treatment groups, anti-apoptotic Bcl-XL protein expression generally increased, while pro-apoptotic Bax and caspase-3 proteins generally decreased. PKC protein expression was decreased in both treatment groups, demonstrating a further decrease by C+P/NOX inhibitor at 6 and 24 h of reperfusion. The present study confirms C+P-mediated neuroprotection and suggests that the NOX/Akt/PKC pathway is a potential target for efficacious therapy following ischemic stroke.
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Affiliation(s)
- Yanna Tong
- Luhe Institute of Neuroscience, Capital Medical University, Beijing 101100, China; (Y.T.); (J.S.); (F.L.); (L.G.)
- Department of Neurology, Luhe Clinical Institute, Capital Medical University, Beijing 101100, China
| | - Kenneth B. Elkin
- Department of Neurosurgery, Wayne State University School of Medicine, Detroit, MI 48201, USA; (K.B.E.); (C.P.); (Y.D.)
| | - Changya Peng
- Department of Neurosurgery, Wayne State University School of Medicine, Detroit, MI 48201, USA; (K.B.E.); (C.P.); (Y.D.)
- Department of Research & Development Center, John D. Dingell VA Medical Center, Detroit, MI 4820, USA; (Y.J.); (W.W.)
| | - Jiamei Shen
- Luhe Institute of Neuroscience, Capital Medical University, Beijing 101100, China; (Y.T.); (J.S.); (F.L.); (L.G.)
| | - Fengwu Li
- Luhe Institute of Neuroscience, Capital Medical University, Beijing 101100, China; (Y.T.); (J.S.); (F.L.); (L.G.)
| | - Longfei Guan
- Luhe Institute of Neuroscience, Capital Medical University, Beijing 101100, China; (Y.T.); (J.S.); (F.L.); (L.G.)
- Department of Neurosurgery, Wayne State University School of Medicine, Detroit, MI 48201, USA; (K.B.E.); (C.P.); (Y.D.)
- Department of Research & Development Center, John D. Dingell VA Medical Center, Detroit, MI 4820, USA; (Y.J.); (W.W.)
| | - Yu Ji
- Department of Research & Development Center, John D. Dingell VA Medical Center, Detroit, MI 4820, USA; (Y.J.); (W.W.)
- Department of General Surgery, Luhe Clinical Institute, Capital Medical University, Beijing 101100, China
| | - Wenjing Wei
- Department of Research & Development Center, John D. Dingell VA Medical Center, Detroit, MI 4820, USA; (Y.J.); (W.W.)
- China-America Institute of Neuroscience, Xuanwu Clinical Institute, Capital Medical University, Beijing 100053, China
| | - Xiaokun Geng
- Luhe Institute of Neuroscience, Capital Medical University, Beijing 101100, China; (Y.T.); (J.S.); (F.L.); (L.G.)
- Department of Neurology, Luhe Clinical Institute, Capital Medical University, Beijing 101100, China
- Department of Neurosurgery, Wayne State University School of Medicine, Detroit, MI 48201, USA; (K.B.E.); (C.P.); (Y.D.)
- Correspondence: ; Tel.: +86-183-1105-5270
| | - Yuchuan Ding
- Department of Neurosurgery, Wayne State University School of Medicine, Detroit, MI 48201, USA; (K.B.E.); (C.P.); (Y.D.)
- Department of Research & Development Center, John D. Dingell VA Medical Center, Detroit, MI 4820, USA; (Y.J.); (W.W.)
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Yang J, Kim E, Beltran C, Cho S. Corticosterone-Mediated Body Weight Loss Is an Important Catabolic Process for Poststroke Immunity and Survival. Stroke 2019; 50:2539-2546. [PMID: 31345131 PMCID: PMC6710102 DOI: 10.1161/strokeaha.119.026053] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Background and Purpose- Stroke-induced acute severe body weight (BW) loss is associated with a high rate of mortality during a critical poststroke period. Several interventions to reduce weight loss, however, have not been successful. Currently, the biological significance of this extraordinary catabolic process is not well understood. Spleen-derived monocytes/macrophages (MMs) are the major immune cells recruited to the injured brain. The trafficking of MMs has been shown to be important for tissue repair and recovery. The purpose of the study is to investigate whether the BW reduction is essential for MM-mediated immune response for mice to survive and whether a corticosterone-mediated catabolic event underlies the processes. Methods- C57BL/6 male mice (12-week-old) were subjected to transient middle cerebral artery occlusion. BW, total MMs, and their Ly-6Chigh and Ly-6Clow subsets were determined in the spleen, blood, and the brain in poststroke mice. Poststroke survival rate and MM subsets were determined in mice with adrenalectomy, sham-adrenalectomy, and adrenalectomy mice supplemented with corticosterone. Results- Stroke reduced BW with a maximum reduction at day 3 poststroke (17.2±5.2%). The reduction at day 3 was positively linked to injury severity and selective depletion of MMs, but no other types of immune cells, in the spleen. Notably, the splenic MM depletion was significantly greater in mice with severe BW reduction (≥18% at day 3). In the blood, stroke depleted circulating MMs to a similar degree in animals with moderate and severe BW loss. Ly-6C+ monocyte infiltration in the poststroke brain was greater in mice with severe BW loss. Blocking the catabolic process by adrenalectomy significantly increased poststroke mortality, but the mortality was partially rescued by corticosterone supplement in adrenalectomy mice. Conclusions- Stroke-induced BW loss facilitates MM-mediated immune response, and the adrenal corticosterone-mediated catabolic process is necessary for poststroke survival. Visual Overview- An online visual overview is available for this article.
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Affiliation(s)
- Jiwon Yang
- Burke Neurological Institute, White Plains, NY 10605
| | - Eunhee Kim
- Burke Neurological Institute, White Plains, NY 10605
| | - Cesar Beltran
- Burke Neurological Institute, White Plains, NY 10605
| | - Sunghee Cho
- Burke Neurological Institute, White Plains, NY 10605
- Feil Family Brain and Mind Research Institute, Weill Cornell Medicine, New York, NY 10065
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Li F, Pendy JT, Ding JN, Peng C, Li X, Shen J, Wang S, Geng X. Exercise rehabilitation immediately following ischemic stroke exacerbates inflammatory injury. Neurol Res 2017; 39:530-537. [PMID: 28415917 DOI: 10.1080/01616412.2017.1315882] [Citation(s) in RCA: 44] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Fengwu Li
- China–America Institute of Neuroscience, Department of Neurology, Luhe Hospital, Capital Medical University, Beijing, China
| | - John T. Pendy
- Department of Neurosurgery, Wayne State University School of Medicine, Detroit, MI, USA
| | - Jessie N. Ding
- Department of Neurosurgery, Wayne State University School of Medicine, Detroit, MI, USA
| | - Changya Peng
- Department of Neurosurgery, Wayne State University School of Medicine, Detroit, MI, USA
| | - Xiaorong Li
- China–America Institute of Neuroscience, Department of Neurology, Luhe Hospital, Capital Medical University, Beijing, China
| | - Jiamei Shen
- China–America Institute of Neuroscience, Department of Neurology, Luhe Hospital, Capital Medical University, Beijing, China
- Department of Neurosurgery, Wayne State University School of Medicine, Detroit, MI, USA
| | - Sainan Wang
- China–America Institute of Neuroscience, Department of Neurology, Luhe Hospital, Capital Medical University, Beijing, China
| | - Xiaokun Geng
- China–America Institute of Neuroscience, Department of Neurology, Luhe Hospital, Capital Medical University, Beijing, China
- Department of Neurosurgery, Wayne State University School of Medicine, Detroit, MI, USA
- Department of Neurology, Luhe Hospital, Capital Medical University, Beijing, China
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