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Li Z, Zhao T, Shi M, Wei Y, Huang X, Shen J, Zhang X, Xie Z, Huang P, Yuan K, Li Z, Li N, Qin D. Polyphenols: Natural food grade biomolecules for treating neurodegenerative diseases from a multi-target perspective. Front Nutr 2023; 10:1139558. [PMID: 36925964 PMCID: PMC10011110 DOI: 10.3389/fnut.2023.1139558] [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: 01/23/2023] [Accepted: 02/13/2023] [Indexed: 03/04/2023] Open
Abstract
As natural functional bioactive ingredients found in foods and plants, polyphenols play various antioxidant and anti-inflammatory roles to prevent the development of disease and restore human health. The multi-target modulation of polyphenols provides a novel practical therapeutic strategy for neurodegenerative diseases that are difficult to treat with traditional drugs like glutathione and cholinesterase inhibitors. This review mainly focuses on the efficacy of polyphenols on ischemic stroke, Parkinson's disease and Alzheimer's disease, including in vivo and in vitro experimental studies. It is further emphasized that polyphenols exert neuroprotective effects primarily through inhibiting production of oxidative stress and inflammatory cytokines, which may be the underlying mechanism. However, polyphenols are still rarely used as medicines to treat neurodegenerative diseases. Due to the lack of clinical trials, the mechanism of polyphenols is still in the stage of insufficient exploration. Future large-scale multi-center randomized controlled trials and in-depth mechanism studies are still needed to fully assess the safety, efficacy and side effects of polyphenols.
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Affiliation(s)
- Zhenmin Li
- School of Basic Medical Sciences, Yunnan University of Chinese Medicine, Kunming, China
| | - Ting Zhao
- The First Clinical Medical School, Yunnan University of Chinese Medicine, Kunming, Yunnan, China
| | - Mingqin Shi
- School of Basic Medical Sciences, Yunnan University of Chinese Medicine, Kunming, China
| | - Yuanyuan Wei
- School of Basic Medical Sciences, Yunnan University of Chinese Medicine, Kunming, China
| | - Xiaoyi Huang
- School of Basic Medical Sciences, Yunnan University of Chinese Medicine, Kunming, China
| | - Jiayan Shen
- The First Clinical Medical School, Yunnan University of Chinese Medicine, Kunming, Yunnan, China
| | - Xiaoyu Zhang
- The First Clinical Medical School, Yunnan University of Chinese Medicine, Kunming, Yunnan, China
| | - Zhaohu Xie
- School of Basic Medical Sciences, Yunnan University of Chinese Medicine, Kunming, China
| | - Peidong Huang
- The Second Clinical Medical School, Yunnan University of Chinese Medicine, Kunming, Yunnan, China
| | - Kai Yuan
- The Second Clinical Medical School, Yunnan University of Chinese Medicine, Kunming, Yunnan, China
| | - Zhaofu Li
- School of Basic Medical Sciences, Yunnan University of Chinese Medicine, Kunming, China
| | - Ning Li
- School of Basic Medical Sciences, Yunnan University of Chinese Medicine, Kunming, China
| | - Dongdong Qin
- School of Basic Medical Sciences, Yunnan University of Chinese Medicine, Kunming, China
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Piccialli I, Tedeschi V, Caputo L, D’Errico S, Ciccone R, De Feo V, Secondo A, Pannaccione A. Exploring the Therapeutic Potential of Phytochemicals in Alzheimer’s Disease: Focus on Polyphenols and Monoterpenes. Front Pharmacol 2022; 13:876614. [PMID: 35600880 PMCID: PMC9114803 DOI: 10.3389/fphar.2022.876614] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2022] [Accepted: 04/11/2022] [Indexed: 12/21/2022] Open
Abstract
Alzheimer’s disease (AD) is a chronic, complex neurodegenerative disorder mainly characterized by the irreversible loss of memory and cognitive functions. Different hypotheses have been proposed thus far to explain the etiology of this devastating disorder, including those centered on the Amyloid-β (Aβ) peptide aggregation, Tau hyperphosphorylation, neuroinflammation and oxidative stress. Nonetheless, the therapeutic strategies conceived thus far to treat AD neurodegeneration have proven unsuccessful, probably due to the use of single-target drugs unable to arrest the progressive deterioration of brain functions. For this reason, the theoretical description of the AD etiology has recently switched from over-emphasizing a single deleterious process to considering AD neurodegeneration as the result of different pathogenic mechanisms and their interplay. Moreover, much relevance has recently been conferred to several comorbidities inducing insulin resistance and brain energy hypometabolism, including diabetes and obesity. As consequence, much interest is currently accorded in AD treatment to a multi-target approach interfering with different pathways at the same time, and to life-style interventions aimed at preventing the modifiable risk-factors strictly associated with aging. In this context, phytochemical compounds are emerging as an enormous source to draw on in the search for multi-target agents completing or assisting the traditional pharmacological medicine. Intriguingly, many plant-derived compounds have proven their efficacy in counteracting several pathogenic processes such as the Aβ aggregation, neuroinflammation, oxidative stress and insulin resistance. Many strategies have also been conceived to overcome the limitations of some promising phytochemicals related to their poor pharmacokinetic profiles, including nanotechnology and synthetic routes. Considering the emerging therapeutic potential of natural medicine, the aim of the present review is therefore to highlight the most promising phytochemical compounds belonging to two major classes, polyphenols and monoterpenes, and to report the main findings about their mechanisms of action relating to the AD pathogenesis.
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Affiliation(s)
- Ilaria Piccialli
- Division of Pharmacology, Department of Neuroscience, Reproductive and Dentistry Sciences, School of Medicine, University of Naples “Federico II”, Naples, Italy
| | - Valentina Tedeschi
- Division of Pharmacology, Department of Neuroscience, Reproductive and Dentistry Sciences, School of Medicine, University of Naples “Federico II”, Naples, Italy
| | - Lucia Caputo
- Department of Pharmacy, University of Salerno, Salerno, Italy
| | - Stefano D’Errico
- Department of Pharmacy, University of Naples “Federico II”, Naples, Italy
| | - Roselia Ciccone
- Division of Pharmacology, Department of Neuroscience, Reproductive and Dentistry Sciences, School of Medicine, University of Naples “Federico II”, Naples, Italy
| | - Vincenzo De Feo
- Department of Pharmacy, University of Salerno, Salerno, Italy
| | - Agnese Secondo
- Division of Pharmacology, Department of Neuroscience, Reproductive and Dentistry Sciences, School of Medicine, University of Naples “Federico II”, Naples, Italy
| | - Anna Pannaccione
- Division of Pharmacology, Department of Neuroscience, Reproductive and Dentistry Sciences, School of Medicine, University of Naples “Federico II”, Naples, Italy
- *Correspondence: Anna Pannaccione,
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Yan L, Yang J, Yu M, Sun W, Han Y, Lu X, Jin C, Wu S, Cai Y. Lanthanum Impairs Learning and Memory by Activating Microglia in the Hippocampus of Mice. Biol Trace Elem Res 2022; 200:1640-1649. [PMID: 35178682 DOI: 10.1007/s12011-021-02637-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/12/2021] [Accepted: 02/10/2021] [Indexed: 12/20/2022]
Abstract
Lanthanum can induce neurotoxicity and impair cognitive function; therefore, research on the mechanism by which the ability to learning and memory is decreased by lanthanum is vitally important for protecting health. Microglia are a type of neuroglia located throughout the brain and spinal cord that play an important role in the central nervous system. When overactive, these cells can cause the excessive production of inflammatory cytokines that can damage neighboring neurons. The purpose of this study was to explore the effect of lanthanum in the form of lanthanum chloride (LaCl3) on learning and the memory of mice and determine whether there is a relationship between hippocampal neurons or learning and memory damage and excessive production of inflammatory cytokines. Four groups of pregnant Chinese Kun Ming mice were exposed to 0, 18, 36, or 72 mM LaCl3 in their drinking water during lactation. The offspring were then exposed to LaCl3 in the breast milk at birth until weaning and then exposed to these concentrations in their drinking water for 2 months after weaning. The results showed that LaCl3 impaired learning and memory in mice and injured their neurons, activated the microglia, and significantly overregulated the mRNA and protein expression of tumor necrosis factor alpha, interleukin (IL)-1β, IL-6, monocyte chemoattractant protein-1, and nitric oxide in the hippocampus. The results of this study suggest that lanthanum can impair learning and memory in mice, possibly by over-activating the microglia.
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Affiliation(s)
- Licheng Yan
- Department of Toxicology, School of Public Health, China Medical University, No.77 Puhe road, Shenyang North New Area, Shenyang, 110122, Liaoning province, People's Republic of China
- Department of Toxicology, School of Public Health, North China University of Science and Technology, No.21 Bohai road, Caofeidian New Area, Tangshan, 063210, Hebei province, People's Republic of China
| | - Jinghua Yang
- Department of Toxicology, School of Public Health, China Medical University, No.77 Puhe road, Shenyang North New Area, Shenyang, 110122, Liaoning province, People's Republic of China
| | - Miao Yu
- Department of Toxicology, School of Public Health, China Medical University, No.77 Puhe road, Shenyang North New Area, Shenyang, 110122, Liaoning province, People's Republic of China
| | - Wenchang Sun
- Department of Toxicology, School of Public Health, China Medical University, No.77 Puhe road, Shenyang North New Area, Shenyang, 110122, Liaoning province, People's Republic of China
| | - Yarao Han
- Department of Toxicology, School of Public Health, China Medical University, No.77 Puhe road, Shenyang North New Area, Shenyang, 110122, Liaoning province, People's Republic of China
| | - Xiaobo Lu
- Department of Toxicology, School of Public Health, China Medical University, No.77 Puhe road, Shenyang North New Area, Shenyang, 110122, Liaoning province, People's Republic of China
| | - Cuihong Jin
- Department of Toxicology, School of Public Health, China Medical University, No.77 Puhe road, Shenyang North New Area, Shenyang, 110122, Liaoning province, People's Republic of China
| | - Shengwen Wu
- Department of Toxicology, School of Public Health, China Medical University, No.77 Puhe road, Shenyang North New Area, Shenyang, 110122, Liaoning province, People's Republic of China
| | - Yuan Cai
- Department of Toxicology, School of Public Health, China Medical University, No.77 Puhe road, Shenyang North New Area, Shenyang, 110122, Liaoning province, People's Republic of China.
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Xu H, Yu ZH, Ge MJ, Shen JX, Han F, Pan C, Chen JJ, Zhu XL, Hou WY, Hou YQ, Lu YP. Estradiol attenuates chronic restraint stress-induced dendrite and dendritic spine loss and cofilin1 activation in ovariectomized mice. Horm Behav 2021; 135:105040. [PMID: 34358948 DOI: 10.1016/j.yhbeh.2021.105040] [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: 01/20/2021] [Revised: 07/18/2021] [Accepted: 07/22/2021] [Indexed: 10/20/2022]
Abstract
Ovarian hormone deprivation is associated with mood disorders, such as depression, and estradiol therapy is significantly more effective than placebos in treating major depression associated with menopause onset. However, the effect of estradiol on neuronal plasticity and its mechanisms remain to be further elucidated. In this study, behavioral assessments were used to examine the antidepressant effect of estradiol in ovariectomized (OVX) B6.Cg-TgN (Thy-YFP-H)-2Jrs transgenic mice on chronic restraint stress (CRS)-induced dendrite and dendritic spine loss; Yellow fluorescent protein (YFP) is characteristically expressed in excitatory neurons in transgenic mice, and its three-dimensional images were used to evaluate the effect of estradiol on the density of different types of dendritic spines. Quantification and distribution of cofilin1 and p-cofilin1 were determined by qPCR, Western blots, and immunohistochemistry, respectively. The results revealed that treatment with estradiol or clomipramine significantly improved depression-like behaviors. Estradiol treatment also significantly upregulated the dendritic density in all areas examined and increased the density of filopodia-type, thin-type and mushroom-type spines in the hippocampal CA1 and elevated the thin-type and mushroom-type spine density in the PFC. Consistent with these changes, estradiol treatment significantly increased the density of p-cofilin1 immunopositive dendritic spines. Thus, these data reveal a possible estradiol antidepressant mechanism, in that estradiol promoted the phosphorylation of cofilin1 and reduced the loss of dendrites and dendritic spines, which of these dendritic spines include not only immature spines such as filopodia-type, but also mature spines such as mushroom-type, and attenuated the depression-like behavior.
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Affiliation(s)
- Hui Xu
- College of Life Science, Anhui Normal University, No. 1 Beijing East Road, Wuhu 241000, China; Anhui College of Traditional Chinese Medicine, No. 18 Wuxiashan West Road, Wuhu 241002, China
| | - Zong-Hao Yu
- College of Life Science, Anhui Normal University, No. 1 Beijing East Road, Wuhu 241000, China
| | - Ming-Jun Ge
- College of Life Science, Anhui Normal University, No. 1 Beijing East Road, Wuhu 241000, China
| | - Jun-Xian Shen
- College of Life Science, Anhui Normal University, No. 1 Beijing East Road, Wuhu 241000, China
| | - Fei Han
- College of Life Science, Anhui Normal University, No. 1 Beijing East Road, Wuhu 241000, China
| | - Chuan Pan
- College of Life Science, Anhui Normal University, No. 1 Beijing East Road, Wuhu 241000, China
| | - Jing-Jing Chen
- College of Life Science, Anhui Normal University, No. 1 Beijing East Road, Wuhu 241000, China
| | - Xiu-Ling Zhu
- College of Life Science, Anhui Normal University, No. 1 Beijing East Road, Wuhu 241000, China; Department of Anatomy, Wannan Medical College, No. 22 Wenchang West Road, Wuhu 241002, China
| | - Wen-Yu Hou
- College of Life Science, Anhui Normal University, No. 1 Beijing East Road, Wuhu 241000, China
| | - Yu-Qiao Hou
- College of Life Science, Anhui Normal University, No. 1 Beijing East Road, Wuhu 241000, China
| | - Ya-Ping Lu
- College of Life Science, Anhui Normal University, No. 1 Beijing East Road, Wuhu 241000, China.
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Liu H, Hu X, Jiang R, Cai J, Lin Q, Fan Z, Zhao P, Wang S, Zou C, Du W, Dong Z, Liu Y. CQMUH-011 Inhibits LPS-Induced Microglia Activation and Ameliorates Brain Ischemic Injury in Mice. Inflammation 2021; 44:1345-1358. [PMID: 33528726 PMCID: PMC8285337 DOI: 10.1007/s10753-021-01420-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2019] [Revised: 12/28/2020] [Accepted: 01/11/2021] [Indexed: 12/23/2022]
Abstract
Excessive microglial activation-mediated neuroinflammation is closely involved in the pathogenesis of several neurological diseases. CQMUH-011, as a novel adamantane sulfonamide compound, has been shown anti-inflammatory properties in activated macrophages (RAW264.7). However, the role of CQMUH-011 in microglial activation-induced neuroinflammation and neuroprotective properties has yet to be elucidated. In the present study, we investigated the potential effects and mechanisms of CQMUH-011 on lipopolysaccharide (LPS)-stimulated primary microglia in vitro and transient middle cerebral artery occlusion (t-MCAO)-induced acute cerebral ischemia/reperfusion (I/R) injury in vivo. The results demonstrated that CQMUH-011 significantly suppressed the production of tumor necrosis factor (TNF)-α and interleukin (IL)-1β by LPS-stimulated primary microglia. In addition, CQMUH-011 inhibited the proliferation of activated microglia by arresting the cell cycle at the G1/S phase accompanied by downregulating the expression of cell cycle regulatory proteins such as proliferating cell nuclear antigen (PCNA) and cyclin D1. CQMUH-011 was seen to induce apoptosis in activated microglia by regulating the expression of Bax and Bcl-2. Furthermore, CQMUH-011 markedly attenuated the protein expression of Toll-like receptor 4 (TLR4) and myeloid differentiation factor 88 (MyD88) as well as the phosphorylation levels of nuclear factor-kappa (NF-κB) subunit p65, inhibitory kappa B-alpha (IκBα), and mitogen-activated protein kinases (MAPKs) such as extracellular signal-regulated kinase (ERK) and p38 kinases. In vivo, CQMUH-011 administration significantly improved neurological function and infarct volume, and ameliorated the inflammatory cytokines and microglia amount around the injury site of mice. In conclusion, these results suggested that CQMUH-011 has a notable anti-inflammatory effect and protects mice from I/R injure. Thus, CQMUH-011 may be a candidate drug for the treatment of cerebral ischemia patients.
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Affiliation(s)
- Hailin Liu
- Department of Pharmacology, the Key Laboratory of Biochemistry and Molecular Pharmacology, Chongqing Medical University, Chongqing, 400016, China
- Department of Pharmacy, First People's Hospital of Chongqing Liangjiang New zone, Chongqing, 401121, China
| | - Xiangnan Hu
- Department of Pharmacology, the Key Laboratory of Biochemistry and Molecular Pharmacology, Chongqing Medical University, Chongqing, 400016, China
| | - Rong Jiang
- College of Basic Medicine, Chongqing Medical University, Chongqing, 400016, China
| | - Jianghui Cai
- Department of Pharmacology, the Key Laboratory of Biochemistry and Molecular Pharmacology, Chongqing Medical University, Chongqing, 400016, China
| | - Qiao Lin
- Department of Pharmacology, the Key Laboratory of Biochemistry and Molecular Pharmacology, Chongqing Medical University, Chongqing, 400016, China
| | - Zhiguo Fan
- Department of Pharmacy, First People's Hospital of Chongqing Liangjiang New zone, Chongqing, 401121, China
| | - Pan Zhao
- Department of Pharmacy, First People's Hospital of Chongqing Liangjiang New zone, Chongqing, 401121, China
| | - Song Wang
- Department of Pharmacy, First People's Hospital of Chongqing Liangjiang New zone, Chongqing, 401121, China
| | - Chunqiao Zou
- Department of Pharmacy, First People's Hospital of Chongqing Liangjiang New zone, Chongqing, 401121, China
| | - Weimin Du
- Department of Pharmacology, the Key Laboratory of Biochemistry and Molecular Pharmacology, Chongqing Medical University, Chongqing, 400016, China
| | - Zhi Dong
- Department of Pharmacology, the Key Laboratory of Biochemistry and Molecular Pharmacology, Chongqing Medical University, Chongqing, 400016, China
| | - Yingju Liu
- Department of Pharmacology, the Key Laboratory of Biochemistry and Molecular Pharmacology, Chongqing Medical University, Chongqing, 400016, China.
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Yu P, Wang L, Tang F, Guo S, Liao H, Fan C, Yang Q. Resveratrol-mediated neurorestoration after cerebral ischemic injury - Sonic Hedgehog signaling pathway. Life Sci 2021; 280:119715. [PMID: 34116113 DOI: 10.1016/j.lfs.2021.119715] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2020] [Revised: 05/11/2021] [Accepted: 05/22/2021] [Indexed: 11/16/2022]
Abstract
AIMS Resveratrol pretreatment can decrease ischemic cerebral injury and enhance proliferation of neural stem cells via mediation of Sonic Hedgehog signaling. However, it is relatively little known about whether neurorestorative effects of resveratrol are mediated by Shh signaling in ischemic cerebral injury. The present study tests whether the Shh signaling pathway mediates resveratrol to promote neurorestoration of ischemic cerebral injury. MATERIALS AND METHODS Rats or neurons before middle cerebral artery occlusion/reperfusion (MCAO/R) or oxygen-glucose deprivation/reoxygenation (OGD/R) injury were pretreated with resveratrol. Immunohistochemistry is used to be determined BrdU+/DCX+, BrdU+/Nestin+ and BrdU+/NG2+ cell (markers of new proliferated neural stem/progenitor and oligodendrocyte precursor cell, respectively), BrdU+/MAP2+ and BrdU+/CNPase+ cell (markers of new mature neuron and oligodendrocyte, respectively), BrdU+/TUNEL+ cell (marker of apoptosis for new proliferated cell), SY, NF200, Iba-1 and GFAP (markers of synaptogenesis, axon, microglia and astrocyte, respectively). Shh and Gli-1 mRNAs were detected by RT-PCR assay. Iba-1, GFAP, Shh and Gli-1 proteins were detected by Western blot. KEY FINDINGS Resveratrol pretreatment significantly reduced neurological deficit scores, promoted proliferation, differentiation, migration and survival of neural stem/progenitor and oligodendrocyte precursor cells, inhibited astrocyte and microglia activation, strengthened synaptophysin and NF200 expression, at the same time, promoted neurite outgrowth of neurons. Meanwhile, expression levels of Shh and Gli-1 proteins were significantly increased and Gli-1 translocated into the nucleus. However, cyclopamine, a Smo inhibitor, canceled the above effects of resveratrol. CONCLUSIONS It may be mediated, at least partly, by the Shh signaling pathway that resveratrol pretreament promote neurorestoration of ischemic cerebral injury.
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Affiliation(s)
- Pingping Yu
- Department of Neurology, the First Affiliated Hospital of Chongqing Medical University, Chongqing, China; Physical Examination Center, the Second Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Li Wang
- Department of Neurology, the First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Fanren Tang
- Department of Neurology, the First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Shuang Guo
- Department of Neurology, the First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Hongyan Liao
- Department of Neurology, the First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Cengceng Fan
- Department of Neurology, the First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Qin Yang
- Department of Neurology, the First Affiliated Hospital of Chongqing Medical University, Chongqing, China.
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Zwart SR, Mulavara AP, Williams TJ, George K, Smith SM. The role of nutrition in space exploration: Implications for sensorimotor, cognition, behavior and the cerebral changes due to the exposure to radiation, altered gravity, and isolation/confinement hazards of spaceflight. Neurosci Biobehav Rev 2021; 127:307-331. [PMID: 33915203 DOI: 10.1016/j.neubiorev.2021.04.026] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2020] [Revised: 02/16/2021] [Accepted: 04/23/2021] [Indexed: 12/19/2022]
Abstract
Multi-year crewed space exploration missions are now on the horizon; therefore, it is important that we understand and mitigate the physiological effects of spaceflight. The spaceflight hazards-radiation, isolation, confinement, and altered gravity-have the potential to contribute to neuroinflammation and produce long-term cognitive and behavioral effects-while the fifth hazard, distance from earth, limits capabilities to mitigate these risks. Accumulated evidence suggests that nutrition has an important role in optimizing cognition and reducing the risk of neurodegenerative diseases caused by neuroinflammation. Here we review the nutritional perspective of how these spaceflight hazards affect the astronaut's brain, behavior, performance, and sensorimotor function. We also assess potential nutrient/nutritional countermeasures that could prevent or mitigate spaceflight risks and ensure that crewmembers remain healthy and perform well during their missions. Just as history has taught us the importance of nutrition in terrestrial exploration, we must understand the role of nutrition in the development and mitigation of spaceflight risks before humans can successfully explore beyond low-Earth orbit.
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Affiliation(s)
- Sara R Zwart
- Univerity of Texas Medical Branch, 301 University Blvd, Galveston, TX, 77555, USA.
| | | | - Thomas J Williams
- NASA Johnson Space Center, Mail Code SK3, 2101 NASA Parkway, Houston, TX, 77058, USA
| | - Kerry George
- KBR, 2400 E NASA Parkway, Houston, TX, 77058, USA
| | - Scott M Smith
- NASA Johnson Space Center, Mail Code SK3, 2101 NASA Parkway, Houston, TX, 77058, USA
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8
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CQMUH-011 Inhibits LPS-Induced Microglia Activation and Ameliorates Brain Ischemic Injury in Mice. Inflammation 2021. [PMID: 33528726 DOI: 10.1007/s10753-021-01420-3.] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/29/2022]
Abstract
Excessive microglial activation-mediated neuroinflammation is closely involved in the pathogenesis of several neurological diseases. CQMUH-011, as a novel adamantane sulfonamide compound, has been shown anti-inflammatory properties in activated macrophages (RAW264.7). However, the role of CQMUH-011 in microglial activation-induced neuroinflammation and neuroprotective properties has yet to be elucidated. In the present study, we investigated the potential effects and mechanisms of CQMUH-011 on lipopolysaccharide (LPS)-stimulated primary microglia in vitro and transient middle cerebral artery occlusion (t-MCAO)-induced acute cerebral ischemia/reperfusion (I/R) injury in vivo. The results demonstrated that CQMUH-011 significantly suppressed the production of tumor necrosis factor (TNF)-α and interleukin (IL)-1β by LPS-stimulated primary microglia. In addition, CQMUH-011 inhibited the proliferation of activated microglia by arresting the cell cycle at the G1/S phase accompanied by downregulating the expression of cell cycle regulatory proteins such as proliferating cell nuclear antigen (PCNA) and cyclin D1. CQMUH-011 was seen to induce apoptosis in activated microglia by regulating the expression of Bax and Bcl-2. Furthermore, CQMUH-011 markedly attenuated the protein expression of Toll-like receptor 4 (TLR4) and myeloid differentiation factor 88 (MyD88) as well as the phosphorylation levels of nuclear factor-kappa (NF-κB) subunit p65, inhibitory kappa B-alpha (IκBα), and mitogen-activated protein kinases (MAPKs) such as extracellular signal-regulated kinase (ERK) and p38 kinases. In vivo, CQMUH-011 administration significantly improved neurological function and infarct volume, and ameliorated the inflammatory cytokines and microglia amount around the injury site of mice. In conclusion, these results suggested that CQMUH-011 has a notable anti-inflammatory effect and protects mice from I/R injure. Thus, CQMUH-011 may be a candidate drug for the treatment of cerebral ischemia patients.
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9
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Zhao L, Zhang B, Huang S, Zhou Z, Jia X, Qiao C, Wang F, Sun M, Shi Y, Yao L, Cui C, Shen Y. Insulin-Like Growth Factor-1 Enhances Motoneuron Survival and Inhibits Neuroinflammation After Spinal Cord Transection in Zebrafish. Cell Mol Neurobiol 2021; 42:1373-1384. [PMID: 33481118 DOI: 10.1007/s10571-020-01022-x] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2020] [Accepted: 11/27/2020] [Indexed: 12/13/2022]
Abstract
Insulin-like growth factor-1 (IGF-1) is a neurotrophic factor produced locally in the central nervous system which can promote axonal regeneration, protect motoneurons, and inhibit neuroinflammation. In this study, we used the zebrafish spinal transection model to investigate whether IGF-1 plays an important role in the recovery of motor function. Unlike mammals, zebrafish can regenerate axons and restore mobility in remarkably short period after spinal cord transection. Quantitative real-time PCR and immunofluorescence showed decreased IGF-1 expression in the lesion site. Double immunostaining for IGF-1 and Islet-1 (motoneuron marker)/GFAP (astrocyte marker)/Iba-1 (microglia marker) showed that IGF-1 was mainly expressed in motoneurons and was surrounded by astrocyte and microglia. Following administration of IGF-1 morpholino at the lesion site of spinal-transected zebrafish, swimming test showed retarded recovery of mobility, the number of motoneurons was reduced, and increased immunofluorescence density of microglia was caused. Our data suggested that IGF-1 enhances motoneuron survival and inhibits neuroinflammation after spinal cord transection in zebrafish, which suggested that IGF-1 might be involved in the motor recovery.
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Affiliation(s)
- Liping Zhao
- Wuxi Medical School, Jiangnan University, Wuxi, 214122, Jiangsu, China
- Public Health Research Center, Jiangnan University, Wuxi, 214122, Jiangsu, China
| | - Boping Zhang
- Wuxi Medical School, Jiangnan University, Wuxi, 214122, Jiangsu, China
- Public Health Research Center, Jiangnan University, Wuxi, 214122, Jiangsu, China
| | - Shubing Huang
- Wuxi Medical School, Jiangnan University, Wuxi, 214122, Jiangsu, China
- Public Health Research Center, Jiangnan University, Wuxi, 214122, Jiangsu, China
| | - Zhilan Zhou
- Wuxi Medical School, Jiangnan University, Wuxi, 214122, Jiangsu, China
- Public Health Research Center, Jiangnan University, Wuxi, 214122, Jiangsu, China
| | - Xuebing Jia
- Wuxi Medical School, Jiangnan University, Wuxi, 214122, Jiangsu, China
- Public Health Research Center, Jiangnan University, Wuxi, 214122, Jiangsu, China
| | - Chenmeng Qiao
- Wuxi Medical School, Jiangnan University, Wuxi, 214122, Jiangsu, China
- Public Health Research Center, Jiangnan University, Wuxi, 214122, Jiangsu, China
| | - Fang Wang
- Wuxi Medical School, Jiangnan University, Wuxi, 214122, Jiangsu, China
- Public Health Research Center, Jiangnan University, Wuxi, 214122, Jiangsu, China
| | - Mengfei Sun
- Wuxi Medical School, Jiangnan University, Wuxi, 214122, Jiangsu, China
- Public Health Research Center, Jiangnan University, Wuxi, 214122, Jiangsu, China
| | - Yun Shi
- Wuxi Medical School, Jiangnan University, Wuxi, 214122, Jiangsu, China
- Public Health Research Center, Jiangnan University, Wuxi, 214122, Jiangsu, China
| | - Li Yao
- Wuxi Medical School, Jiangnan University, Wuxi, 214122, Jiangsu, China
- Public Health Research Center, Jiangnan University, Wuxi, 214122, Jiangsu, China
| | - Chun Cui
- Wuxi Medical School, Jiangnan University, Wuxi, 214122, Jiangsu, China.
- Public Health Research Center, Jiangnan University, Wuxi, 214122, Jiangsu, China.
| | - Yanqin Shen
- Wuxi Medical School, Jiangnan University, Wuxi, 214122, Jiangsu, China.
- Public Health Research Center, Jiangnan University, Wuxi, 214122, Jiangsu, China.
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10
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Resveratrol Mitigates Hippocampal Tau Acetylation and Cognitive Deficit by Activation SIRT1 in Aged Rats following Anesthesia and Surgery. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2020; 2020:4635163. [PMID: 33381265 PMCID: PMC7758127 DOI: 10.1155/2020/4635163] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/11/2020] [Revised: 11/09/2020] [Accepted: 11/28/2020] [Indexed: 12/14/2022]
Abstract
Postoperative cognitive dysfunction (POCD) is a sever postsurgical neurological complication in the elderly population. As the global acceleration of population ageing, POCD is proved to be a great challenge to the present labor market and healthcare system. In the present study, our findings showed that tau acetylation mediated by SIRT1 deficiency resulted in tau hyperphosphorylation in the hippocampus of the aged POCD model and consequently contributed to cognitive impairment. Interestingly, pretreatment with resveratrol almost restored the expression of SIRT1, reduced the levels of acetylated tau and hyperphosphorylated tau in the hippocampus, and improved the cognitive performance in the behavioral tests. What is more, we observed that microglia-derived neuroinflammation resulting from SIRT1 inhibition in microglia probably aggravated the tau acetylation in cultured neurons in vitro. Our findings supported the notion that activation SIRT1 provided dually beneficial effect in the aged POCD model. Taken together, our findings provided the initial evidence that tau acetylation was associated with cognitive impairment in the aged POCD model and paved a promising avenue to prevent POCD by inhibiting tau acetylation in a SIRT1-dependent manner.
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11
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Olajide OA, Sarker SD. Alzheimer's disease: natural products as inhibitors of neuroinflammation. Inflammopharmacology 2020; 28:1439-1455. [PMID: 32930914 PMCID: PMC7572326 DOI: 10.1007/s10787-020-00751-1] [Citation(s) in RCA: 39] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2020] [Accepted: 08/28/2020] [Indexed: 12/17/2022]
Abstract
Alzheimer’s disease (AD) is the most common form of dementia and affects 44 million people worldwide. New emerging evidence from pre-clinical and clinical investigations shows that neuroinflammation is a major pathological component of AD suggesting that anti-inflammatory strategies are important in delaying the onset or slowing the progression of the disease. However, efforts to employ current anti-inflammatory agents in AD clinical trials have produced limited success. Consequently, there is a need to explore anti-inflammatory natural products, which target neuroinflammatory pathways relevant to AD pathogenesis. This review summarises important druggable molecular targets of neuroinflammation and presents classes of anti-neuroinflammatory natural products with potentials for preventing and reducing symptoms of AD.
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Affiliation(s)
- Olumayokun A Olajide
- Department of Pharmacy, School of Applied Sciences, University of Huddersfield, Queensgate, Huddersfield, HD1 3DH, UK.
| | - Satyajit D Sarker
- Centre for Natural Products Discovery, School of Pharmacy and Biomolecular Sciences, Liverpool John Moores University, James Parsons Building, Byrom Street, Liverpool, L3 3AF, UK
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12
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Hornedo-Ortega R, Cerezo AB, de Pablos RM, Krisa S, Richard T, García-Parrilla MC, Troncoso AM. Phenolic Compounds Characteristic of the Mediterranean Diet in Mitigating Microglia-Mediated Neuroinflammation. Front Cell Neurosci 2018; 12:373. [PMID: 30405355 PMCID: PMC6206263 DOI: 10.3389/fncel.2018.00373] [Citation(s) in RCA: 65] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2018] [Accepted: 10/01/2018] [Indexed: 12/21/2022] Open
Abstract
Neuroinflammation is a pathological feature of quite a number of Central Nervous System diseases such as Alzheimer and Parkinson's disease among others. The hallmark of brain neuroinflammation is the activation of microglia, which are the immune resident cells in the brain and represents the first line of defense when injury or disease occur. Microglial activated cells can adopt different phenotypes to carry out its diverse functions. Thus, the shift into pro-inflammatory/neurotoxic or anti-inflammatory/neuroprotective phenotypes, depending of the brain environment, has totally changed the understanding of microglia in neurodegenerative disease. For this reason, novel therapeutic strategies which aim to modify the microglia polarization are being developed. Additionally, the understanding of how nutrition may influence the prevention and/or treatment of neurodegenerative diseases has grown greatly in recent years. The protective role of Mediterranean diet (MD) in preventing neurodegenerative diseases has been reported in a number of studies. The Mediterranean dietary pattern includes as distinctive features the moderate intake of red wine and extra virgin olive oil, both of them rich in polyphenolic compounds, such as resveratrol, oleuropein and hydroxytyrosol and their derivatives, which have demonstrated anti-inflammatory effects on microglia on in vitro studies. This review summarizes our understanding of the role of dietary phenolic compounds characteristic of the MD in mitigating microglia-mediated neuroinflammation, including explanation regarding their bioavailability, metabolism and blood-brain barrier.
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Affiliation(s)
- Ruth Hornedo-Ortega
- MIB, Unité de Recherche Oenologie, EA4577, USC 1366 INRA, ISVV, Unive. de Bordeaux, Bordeaux, France
| | - Ana B. Cerezo
- Departamento de Nutrición y Bromatología, Toxicología y Medicina Legal, Área de Nutrición y Bromatología, Facultad de Farmacia, Universidad de Sevilla, Seville, Spain
| | - Rocío M. de Pablos
- Departamento de Bioquímica y Biología Molecular, Facultad de Farmacia, Universidad de Sevilla, Seville, Spain
| | - Stéphanie Krisa
- MIB, Unité de Recherche Oenologie, EA4577, USC 1366 INRA, ISVV, Unive. de Bordeaux, Bordeaux, France
| | - Tristan Richard
- MIB, Unité de Recherche Oenologie, EA4577, USC 1366 INRA, ISVV, Unive. de Bordeaux, Bordeaux, France
| | - M. Carmen García-Parrilla
- Departamento de Nutrición y Bromatología, Toxicología y Medicina Legal, Área de Nutrición y Bromatología, Facultad de Farmacia, Universidad de Sevilla, Seville, Spain
| | - Ana M. Troncoso
- Departamento de Nutrición y Bromatología, Toxicología y Medicina Legal, Área de Nutrición y Bromatología, Facultad de Farmacia, Universidad de Sevilla, Seville, Spain
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13
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Lee SH, Suk K. Identification of glia phenotype modulators based on select glial function regulatory signaling pathways. Expert Opin Drug Discov 2018; 13:627-641. [DOI: 10.1080/17460441.2018.1465925] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- Sun-Hwa Lee
- New Drug Development Center, Daegu-Gyeongbuk Medical Innovation Foundation, Daegu, Republic of Korea
| | - Kyoungho Suk
- Department of Pharmacology, Brain Science & Engineering Institute, School of Medicine, Kyungpook National University, Daegu, Republic of Korea
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14
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Zhang X, Wu Q, Zhang Q, Lu Y, Liu J, Li W, Lv S, Zhou M, Zhang X, Hang C. Resveratrol Attenuates Early Brain Injury after Experimental Subarachnoid Hemorrhage via Inhibition of NLRP3 Inflammasome Activation. Front Neurosci 2017; 11:611. [PMID: 29163015 PMCID: PMC5675880 DOI: 10.3389/fnins.2017.00611] [Citation(s) in RCA: 82] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2017] [Accepted: 10/18/2017] [Indexed: 12/22/2022] Open
Abstract
Previous studies have demonstrated resveratrol (RSV) has beneficial effects in early brain injury (EBI) after subarachnoid hemorrhage (SAH). However, the beneficial effects of RSV and the underlying mechanisms have not been clearly identified. The nucleotide-binding oligomerization domain-like receptor family pyrin domain-containing 3 (NLRP3) inflammasome activation plays a crucial role in the EBI pathogenesis. The aim of this study was to investigate the role of RSV on the NLRP3 inflammasome signaling pathway and EBI in rats after SAH. A prechiasmatic cistern injection model was established in rats, and the primary cultured cortical neurons were stimulated with oxyhemoglobin (oxyHb) to induce SAH in vitro. It showed that the NLRP3 inflammasome components, including NLRP3, apoptosis-associated speck-like protein containing a caspase recruitment domain (ASC), caspase-1, mature interleukin-1β (IL-1β), and interleukin-18 (IL-18) were upregulated after SAH, and the enhanced NLRP3 after SAH was mainly located in microglia. Treatment with 60 or 90 mg/kg RSV after SAH dramatically inhibited the expression of NLRP3, but there was no significant difference in the expression of NLRP3 between the SAH + 60 mg/kg RSV and SAH + 90 mg/kg RSV groups. In addition, treatment with 30 mg/kg RSV did not significantly reduced the expression of NLRP3. We next evaluated the neuroprotective effects of RSV against SAH. We determined that SAH-induced NLRP3 inflammasome activation was significantly inhibited in the SAH + 60 mg/kg RSV group. Meanwhile, 60 mg/kg RSV administration could markedly inhibit microglia activation and neutrophils infiltration after SAH. Concomitant with the decreased cerebral inflammation, RSV evidently reduced cortical apoptosis, brain edema, and neurobehavioral impairment after SAH. In vitro experiments, RSV treatment also clearly protected primary cortical neurons against oxyHb insults, including reduced the proportion of neuronal apoptosis, alleviated neuronal degeneration, and improved cell viabilities. These in vitro data further confirm that RSV has an efficient neuroprotection against SAH. Taken together, these in vivo and in vitro findings suggested RSV could protect against EBI after SAH, at least partially via inhibiting NLRP3 inflammasome signaling pathway.
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Affiliation(s)
- Xiangsheng Zhang
- Department of Neurosurgery, Jinling Hospital, School of Medicine, Nanjing University, Nanjing, China
| | - Qi Wu
- Department of Neurosurgery, Jinling Hospital, School of Medicine, Nanjing University, Nanjing, China
| | - Qingrong Zhang
- Department of Neurosurgery, Jinling Hospital, School of Medicine, Nanjing University, Nanjing, China
| | - Yue Lu
- Department of Neurosurgery, Jinling Hospital, School of Medicine, Nanjing University, Nanjing, China
| | - Jingpeng Liu
- Department of Neurosurgery, Jinling Hospital, School of Medicine, Southern Medical University, Nanjing, China
| | - Wei Li
- Department of Neurosurgery, Jinling Hospital, School of Medicine, Nanjing University, Nanjing, China
| | - Shengyin Lv
- Department of Neurosurgery, Jinling Hospital, School of Medicine, Southern Medical University, Nanjing, China
| | - Mengliang Zhou
- Department of Neurosurgery, Jinling Hospital, School of Medicine, Nanjing University, Nanjing, China
| | - Xin Zhang
- Department of Neurosurgery, Jinling Hospital, School of Medicine, Nanjing University, Nanjing, China.,Department of Neurosurgery, Jinling Hospital, School of Medicine, Southern Medical University, Nanjing, China
| | - Chunhua Hang
- Department of Neurosurgery, Jinling Hospital, School of Medicine, Nanjing University, Nanjing, China.,Department of Neurosurgery, Jinling Hospital, School of Medicine, Southern Medical University, Nanjing, China
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15
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The Polarization States of Microglia in TBI: A New Paradigm for Pharmacological Intervention. Neural Plast 2017; 2017:5405104. [PMID: 28255460 PMCID: PMC5309408 DOI: 10.1155/2017/5405104] [Citation(s) in RCA: 85] [Impact Index Per Article: 12.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2016] [Revised: 12/17/2016] [Accepted: 01/11/2017] [Indexed: 01/04/2023] Open
Abstract
Traumatic brain injury (TBI) is a serious medical and social problem worldwide. Because of the complex pathophysiological mechanisms of TBI, effective pharmacotherapy is still lacking. The microglial cells are resident tissue macrophages located in the brain and have two major polarization states, M1 phenotype and M2 phenotype, when activated. The M1 phenotype is related to the release of proinflammatory cytokines and secondary brain injury, while the M2 phenotype has been proved to be responsible for the release of anti-inflammation cytokines and for central nervous system (CNS) repair. In animal models, pharmacological strategies inhibiting the M1 phenotype and promoting the M2 phenotype of microglial cells could alleviate cerebral damage and improve neurological function recovery after TBI. In this review, we aimed to summarize the current knowledge about the pathological significance of microglial M1/M2 polarization in the pathophysiology of TBI. In addition, we reviewed several drugs that have provided neuroprotective effects against brain injury following TBI by altering the polarization states of the microglia. We emphasized that future investigation of the regulation mechanisms of microglial M1/M2 polarization in TBI is anticipated, which could contribute to the development of new targets of pharmacological intervention in TBI.
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