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Denizci E, Altun G, Kaplan S. Morphological evidence for the potential protective effects of curcumin and Garcinia kola against diabetes in the rat hippocampus. Brain Res 2024; 1839:149020. [PMID: 38788929 DOI: 10.1016/j.brainres.2024.149020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2024] [Revised: 05/16/2024] [Accepted: 05/22/2024] [Indexed: 05/26/2024]
Abstract
This research investigated the effects of sciatic nerve transection and diabetes on the hippocampus, and the protective effects of Garcinia kola and curcumin. Thirty-five adults male Wistar albino rats were divided into five groups: a control group (Cont), a transected group (Sham group), a transected + diabetes mellitus group (DM), a transected + diabetes mellitus + Garcinia kola group (DM + GK), and a transected + DM + curcumin group (DM + Cur), each containing seven animals. The experimental diabetes model was created with the intraperitoneal injection of a single dose of streptozotocin. No procedure was applied to the Cont group, while sciatic nerve transection was performed on the other groups. Garcinia kola was administered to the rats in DM + GK, and curcumin to those in DM + Cur. Cardiac perfusion was performed at the end of the experimental period. Brain tissues were dissected for stereological, histopathological, and immunohistochemical evaluations. The volume ratios of hippocampal layers to the entire hippocampus volume were compared between the groups. Anti-S100, anti-caspase 3, and anti-SOX 2 antibodies were used for immunohistochemical analysis. No statistically significant difference was observed in the volume ratios of the four hippocampal layers. However, the volume ratio of the stratum lucidum was higher in the Sham, DM, and DM + Cur groups compared to the Cont group. While curcumin exhibited a protective effect on hippocampal tissue following diabetes induction, Garcinia kola had only a weak protective effect. Increased cell density and nuclear deterioration due to diabetes and nerve transection can be partially ameliorated by treatment with Garcinia kola and curcumin.
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Affiliation(s)
- Eda Denizci
- Department of Histology and Embryology, Ondokuz Mayıs University, Samsun 55139, Turkey
| | - Gamze Altun
- Department of Histology and Embryology, Ondokuz Mayıs University, Samsun 55139, Turkey
| | - Süleyman Kaplan
- Department of Histology and Embryology, Ondokuz Mayıs University, Samsun 55139, Turkey; Nelson Mandela African Institution of Science and Technology, Arusha, Tanzania.
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Davis CK, Arruri V, Joshi P, Vemuganti R. Non-pharmacological interventions for traumatic brain injury. J Cereb Blood Flow Metab 2024; 44:641-659. [PMID: 38388365 PMCID: PMC11197135 DOI: 10.1177/0271678x241234770] [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: 11/08/2023] [Revised: 02/05/2024] [Accepted: 02/07/2024] [Indexed: 02/24/2024]
Abstract
Heterogeneity and variability of symptoms due to the type, site, age, sex, and severity of injury make each case of traumatic brain injury (TBI) unique. Considering this, a universal treatment strategy may not be fruitful in managing outcomes after TBI. Most of the pharmacological therapies for TBI aim at modifying a particular pathway or molecular process in the sequelae of secondary injury rather than a holistic approach. On the other hand, non-pharmacological interventions such as hypothermia, hyperbaric oxygen, preconditioning with dietary adaptations, exercise, environmental enrichment, deep brain stimulation, decompressive craniectomy, probiotic use, gene therapy, music therapy, and stem cell therapy can promote healing by modulating multiple neuroprotective mechanisms. In this review, we discussed the major non-pharmacological interventions that are being tested in animal models of TBI as well as in clinical trials. We evaluated the functional outcomes of various interventions with an emphasis on the links between molecular mechanisms and outcomes after TBI.
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Affiliation(s)
- Charles K Davis
- Department of Neurological Surgery, University of Wisconsin, Madison, WI, USA
| | - Vijay Arruri
- Department of Neurological Surgery, University of Wisconsin, Madison, WI, USA
| | - Pallavi Joshi
- Department of Neurological Surgery, University of Wisconsin, Madison, WI, USA
- Neuroscience Training Program, University of Wisconsin, Madison, WI, USA
| | - Raghu Vemuganti
- Department of Neurological Surgery, University of Wisconsin, Madison, WI, USA
- Neuroscience Training Program, University of Wisconsin, Madison, WI, USA
- William S. Middleton Memorial Veterans Hospital, Madison, WI, USA
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3
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Bow H, Dang C, Hillsbery K, Markowski C, Black M, Strand C. Food for Thought: The Effects of Feeding on Neurogenesis in the Ball Python, Python regius. BRAIN, BEHAVIOR AND EVOLUTION 2024:1-14. [PMID: 38657588 DOI: 10.1159/000539052] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/07/2024] [Accepted: 04/16/2024] [Indexed: 04/26/2024]
Abstract
INTRODUCTION Pythons are a well-studied model of postprandial physiological plasticity. Consuming a meal evokes a suite of physiological changes in pythons including one of the largest documented increases in post-feeding metabolic rates relative to resting values. However, little is known about how this plasticity manifests in the brain. Previous work has shown that cell proliferation in the python brain increases 6 days following meal consumption. This study aimed to confirm these findings and build on them in the long term by tracking the survival and maturation of these newly created cells across a 2-month period. METHODS We investigated differences in neural cell proliferation in ball pythons 6 days after a meal with immunofluorescence using the cell-birth marker 5-bromo-12'-deoxyuridine (BrdU). We investigated differences in neural cell maturation in ball pythons 2 months after a meal using double immunofluorescence for BrdU and a reptilian ortholog of the neuronal marker Fox3. RESULTS We did not find significantly greater rates of cell proliferation in snakes 6 days after feeding, but we did observe more new cells in neurogenic regions in fed snakes 2 months after the meal. Feeding was not associated with higher rates of neurogenesis, but snakes that received a meal had higher numbers of newly created nonneuronal cells than fasted controls. We documented particularly high cell survival rates in the olfactory bulbs and lateral cortex. CONCLUSION Consuming a meal stimulates cell proliferation in the brains of ball pythons after digestion is complete, although this effect emerged at a later time point in this study than expected. Higher rates of proliferation partially account for greater numbers of newly created non-neuronal cells in the brains of fed snakes 2 months after the meal, but our results also suggest that feeding may have a mild neuroprotective effect. We captured a slight trend toward higher cell survival rates in fed snakes, and survival rates were particularly high in brain regions associated with olfactory perception and processing. These findings shed light on the relationship between energy balance and the creation of new neural cells in the brains of ball pythons.
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Affiliation(s)
- Hannah Bow
- Biological Sciences Department, California Polytechnic State University, San Luis Obispo, California, USA
| | - Christina Dang
- Biological Sciences Department, California Polytechnic State University, San Luis Obispo, California, USA
| | - Katherine Hillsbery
- Biological Sciences Department, California Polytechnic State University, San Luis Obispo, California, USA
| | - Carly Markowski
- Biomedical Engineering Department, California Polytechnic State University, San Luis Obispo, California, USA
| | - Michael Black
- Biological Sciences Department, California Polytechnic State University, San Luis Obispo, California, USA
| | - Christine Strand
- Biological Sciences Department, California Polytechnic State University, San Luis Obispo, California, USA
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4
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Xin H, Zhang X, Li P, Li H, Feng G, Wang G. Bifidobacterium bifidum supplementation improves ischemic stroke outcomes in elderly patients: A retrospective study. Medicine (Baltimore) 2024; 103:e37682. [PMID: 38579074 PMCID: PMC10994462 DOI: 10.1097/md.0000000000037682] [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: 10/17/2023] [Accepted: 03/01/2024] [Indexed: 04/07/2024] Open
Abstract
This retrospective study aimed to explore the therapeutic potential of Bifidobacterium bifidum supplementation on elderly ischemic stroke patients. We retrospectively analyzed electronic medical records from 153 elderly ischemic stroke patients. Patients were stratified into 2 groups: those receiving B bifidum supplementation (Intervention group, n = 73) and those receiving standard treatment without any additional supplementation (Control group, n = 80). Outcomes were assessed using the National Institutes of Health Stroke Scale (NIHSS), Montreal Cognitive Assessment (MoCA), Self-Rating Depression Scale (SDS), and Self-Rating Anxiety Scale (SAS). Inflammatory markers, immunological indicators, neurotrophic factor, and gut-brain axis (GBA)-related markers were also evaluated at baseline and during 4-week follow-up. Compared to the control group, the intervention group exhibited significant improvements in the NIHSS, MoCA, SDS and SAS scores (P < .001). Enhanced levels of brain-derived neurotrophic factor (BDNF) and reduced levels of NPY were observed in the intervention group. Additionally, inflammatory markers, including IL-6, IL-8, IL-1β, and TNF-α, were significantly reduced in the intervention group, as well as significant increases in immunoglobulin levels (Ig A, Ig G, and Ig M) (P < .001). Besides, lower incidences of diarrhea and constipation were observed in the intervention group (P < .001), while the incidence of abdominal pain was no significant changed. B bifidum supplementation offers promising therapeutic benefits in improving neurological, cognitive, and psychological outcomes in elderly ischemic stroke patients, which may be achieved by regulating the GBA, reducing inflammation and promoting immune function. These findings highlight the importance of integrating gut health strategies in stroke management.
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Affiliation(s)
- Hui Xin
- Department of Rehabilitation Medicine, Xingtai Central Hospital, Xingtai, China
| | - Xinjie Zhang
- Department of Rehabilitation Medicine, Xingtai Central Hospital, Xingtai, China
| | - Peng Li
- Department of Rehabilitation Medicine, Xingtai Central Hospital, Xingtai, China
| | - Hui Li
- Department of Neurology, Xingtai Central Hospital, Xingtai, China
| | - Gang Feng
- Department of Rehabilitation Medicine, Xingtai Central Hospital, Xingtai, China
| | - Guiling Wang
- Department of Neurology, Xingtai Central Hospital, Xingtai, China
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Roberts LD, Hornsby AK, Thomas A, Sassi M, Kinzett A, Hsiao N, David BR, Good M, Wells T, Davies JS. The 5:2 diet does not increase adult hippocampal neurogenesis or enhance spatial memory in mice. EMBO Rep 2023; 24:e57269. [PMID: 37987211 DOI: 10.15252/embr.202357269] [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: 03/30/2023] [Revised: 10/23/2023] [Accepted: 10/30/2023] [Indexed: 11/22/2023] Open
Abstract
New neurones are generated throughout life in the mammalian brain in a process known as adult hippocampal neurogenesis (AHN). Since this phenomenon grants a high degree of neuroplasticity influencing learning and memory, identifying factors that regulate AHN may be important for ameliorating age-related cognitive decline. Calorie restriction (CR) has been shown to enhance AHN and improve memory, mediated by the stomach hormone, ghrelin. Intermittent fasting (IF), a dietary strategy offering more flexibility than conventional CR, has also been shown to promote aspects of AHN. The 5:2 diet is a popular form of IF; however, its effects on AHN are not well characterised. To address this, we quantified AHN in adolescent and adult wild-type and ghrelin-receptor-deficient mice following 6 weeks on a 5:2 diet. We report an age-related decline in neurogenic processes. However, the 5:2 diet does not increase AHN nor enhance memory performance, suggesting that this specific form of IF is ineffective in promoting brain plasticity to support learning.
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Affiliation(s)
- Luke D Roberts
- Molecular Neurobiology, Institute of Life Sciences, School of Medicine, Swansea University, Swansea, UK
| | | | - Alanna Thomas
- Molecular Neurobiology, Institute of Life Sciences, School of Medicine, Swansea University, Swansea, UK
| | - Martina Sassi
- Molecular Neurobiology, Institute of Life Sciences, School of Medicine, Swansea University, Swansea, UK
| | - Aimee Kinzett
- Molecular Neurobiology, Institute of Life Sciences, School of Medicine, Swansea University, Swansea, UK
| | - Nathan Hsiao
- Molecular Neurobiology, Institute of Life Sciences, School of Medicine, Swansea University, Swansea, UK
| | - Bethan R David
- Molecular Neurobiology, Institute of Life Sciences, School of Medicine, Swansea University, Swansea, UK
| | - Mark Good
- School of Psychology, Cardiff University, Cardiff, UK
| | - Timothy Wells
- School of Biosciences, Cardiff University, Cardiff, UK
| | - Jeffrey S Davies
- Molecular Neurobiology, Institute of Life Sciences, School of Medicine, Swansea University, Swansea, UK
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Gabarró-Solanas R, Davaatseren A, Kleifeld J, Kepčija T, Köcher T, Giralt A, Crespo-Enríquez I, Urbán N. Adult neural stem cells and neurogenesis are resilient to intermittent fasting. EMBO Rep 2023; 24:e57268. [PMID: 37987220 DOI: 10.15252/embr.202357268] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2023] [Revised: 09/13/2023] [Accepted: 10/30/2023] [Indexed: 11/22/2023] Open
Abstract
Intermittent fasting (IF) is a promising strategy to counteract ageing shown to increase the number of adult-born neurons in the dentate gyrus of mice. However, it is unclear which steps of the adult neurogenesis process are regulated by IF. The number of adult neural stem cells (NSCs) decreases with age in an activation-dependent manner and, to counteract this loss, adult NSCs are found in a quiescent state which ensures their long-term maintenance. We aimed to determine if and how IF affects adult NSCs in the hippocampus. To identify the effects of every-other-day IF on NSCs and all following steps in the neurogenic lineage, we combined fasting with lineage tracing and label retention assays. We show here that IF does not affect NSC activation or maintenance and, that contrary to previous reports, IF does not increase neurogenesis. The same results are obtained regardless of strain, sex, diet length, tamoxifen administration or new-born neuron identification method. Our data suggest that NSCs maintain homeostasis upon IF and that this intervention is not a reliable strategy to increase adult neurogenesis.
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Affiliation(s)
- Rut Gabarró-Solanas
- Institute of Molecular Biotechnology of the Austrian Academy of Sciences (IMBA), Vienna BioCenter (VBC), Vienna, Austria
- Vienna BioCenter PhD Program, Doctoral School of the University of Vienna and Medical University of Vienna, Vienna, Austria
| | - Amarbayasgalan Davaatseren
- Institute of Molecular Biotechnology of the Austrian Academy of Sciences (IMBA), Vienna BioCenter (VBC), Vienna, Austria
| | - Justus Kleifeld
- Institute of Molecular Biotechnology of the Austrian Academy of Sciences (IMBA), Vienna BioCenter (VBC), Vienna, Austria
- Vienna BioCenter PhD Program, Doctoral School of the University of Vienna and Medical University of Vienna, Vienna, Austria
| | - Tatjana Kepčija
- Institute of Molecular Biotechnology of the Austrian Academy of Sciences (IMBA), Vienna BioCenter (VBC), Vienna, Austria
| | | | - Albert Giralt
- Departament de Biomedicina, Facultat de Medicina, Institut de Neurociències, Universitat de Barcelona, Barcelona, Spain
- Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain
- Centro de Investigación Biomédica en Red Sobre Enfermedades Neurodegenerativas (CIBERNED), Barcelona, Spain
- Production and Validation Center of Advanced Therapies (Creatio), Faculty of Medicine and Health Science, University of Barcelona, Barcelona, Spain
| | - Iván Crespo-Enríquez
- Institute of Molecular Biotechnology of the Austrian Academy of Sciences (IMBA), Vienna BioCenter (VBC), Vienna, Austria
| | - Noelia Urbán
- Institute of Molecular Biotechnology of the Austrian Academy of Sciences (IMBA), Vienna BioCenter (VBC), Vienna, Austria
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7
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Yang Q, Zhang L, Li M, Xu Y, Chen X, Yuan R, Ou X, He M, Liao M, Zhang L, Dai H, Lv M, Xie X, Liang W, Chen X. Single-nucleus transcriptomic mapping uncovers targets for traumatic brain injury. Genome Res 2023; 33:1818-1832. [PMID: 37730437 PMCID: PMC10691476 DOI: 10.1101/gr.277881.123] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2023] [Accepted: 09/11/2023] [Indexed: 09/22/2023]
Abstract
The subventricular zone (SVZ) is a neurogenic niche that contributes to homeostasis and repair after brain injury. However, the effects of mild traumatic brain injury (mTBI) on the divergence of the regulatory DNA landscape within the SVZ and its link to functional alterations remain unexplored. In this study, we mapped the transcriptome atlas of murine SVZ and its responses to mTBI at the single-cell level. We observed cell-specific gene expression changes following mTBI and unveiled diverse cell-to-cell interaction networks that influence a wide array of cellular processes. Moreover, we report novel neurogenesis lineage trajectories and related key transcription factors, which we validate through loss-of-function experiments. Specifically, we validate the role of Tcf7l1, a cell cycle gene regulator, in promoting neural stem cell differentiation toward the neuronal lineage after mTBI, providing a potential target for regenerative medicine. Overall, our study profiles an SVZ transcriptome reference map, which underlies the differential cellular behavior in response to mTBI. The identified key genes and pathways that may ameliorate brain damage or facilitate neural repair serve as a comprehensive resource for drug discovery in the context of mTBI.
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Affiliation(s)
- Qiuyun Yang
- Department of Forensic Genetics, West China School of Basic Medical Sciences and Forensic Medicine, Sichuan University, Chengdu 610000, China
- West China Second University Hospital, Sichuan University, Chengdu 610041, China
| | - Lingxuan Zhang
- West China School of Basic Medical Sciences and Forensic Medicine, Sichuan University, Chengdu 610000, China
| | - Manrui Li
- Department of Forensic Genetics, West China School of Basic Medical Sciences and Forensic Medicine, Sichuan University, Chengdu 610000, China
| | - Yang Xu
- Department of Forensic Genetics, West China School of Basic Medical Sciences and Forensic Medicine, Sichuan University, Chengdu 610000, China
| | - Xiaogang Chen
- Department of Forensic Pathology and Forensic Clinical Medicine, West China School of Basic Medical Sciences and Forensic Medicine, Sichuan University, Chengdu 610000, China
| | - Ruixuan Yuan
- West China School of Basic Medical Sciences and Forensic Medicine, Sichuan University, Chengdu 610000, China
| | - Xiaofeng Ou
- Department of Critical Care Medicine, Sichuan University, Chengdu 610000, China
| | - Min He
- Department of Critical Care Medicine, Sichuan University, Chengdu 610000, China
| | - Miao Liao
- Department of Forensic Genetics, West China School of Basic Medical Sciences and Forensic Medicine, Sichuan University, Chengdu 610000, China
| | - Lin Zhang
- Sichuan University, Chengdu 610041, China
| | - Hao Dai
- Department of Forensic Pathology and Forensic Clinical Medicine, West China School of Basic Medical Sciences and Forensic Medicine, Sichuan University, Chengdu 610000, China
| | - Meili Lv
- Department of Immunology, West China School of Basic Medical Sciences and Forensic Medicine, Sichuan University, Chengdu 610000, China
| | - Xiaoqi Xie
- Department of Critical Care Medicine, Sichuan University, Chengdu 610000, China;
| | - Weibo Liang
- Department of Forensic Genetics, West China School of Basic Medical Sciences and Forensic Medicine, Sichuan University, Chengdu 610000, China;
| | - Xiameng Chen
- Department of Forensic Pathology and Forensic Clinical Medicine, West China School of Basic Medical Sciences and Forensic Medicine, Sichuan University, Chengdu 610000, China;
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8
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Endo S, Uto A, Miyashita K, Sato M, Inoue H, Fujii K, Hagiwara A, Ryuzaki M, Oshida T, Kinouchi K, Itoh H. Intermittent Fasting Sustainably Improves Glucose Tolerance in Normal Weight Male Mice Through Histone Hyperacetylation. J Endocr Soc 2023; 7:bvad082. [PMID: 37362383 PMCID: PMC10290492 DOI: 10.1210/jendso/bvad082] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/02/2022] [Indexed: 06/28/2023] Open
Abstract
To explore the mechanism by which intermittent fasting (IF) exerts prolonged effects after discontinuation, we examined mice that had been subjected to 4 cycles of fasting for 72 hours and ad libitum feeding for 96 hours per week (72hIF), followed by 4 weeks of ad libitum feeding, focusing on expression of genes for lipid metabolism in the skeletal muscle and histone acetylation in the promoter region. The 72hIF regimen resulted in metabolic remodeling, characterized by enhanced lipid utilization and mitochondrial activation in the muscle. This long-term IF (72hIF) caused stronger metabolic effects than alternate day fasting (24hIF) wherein fasting and refeeding are repeated every 24 hours. Upregulation of lipid oxidation genes and an increase in oxygen utilization were sustained even at 4 weeks after discontinuation of 72hIF, associated with histone hyperacetylation of the promoter region of uncoupling protein 3 (Ucp3) and carnitine palmitoyl transferase 1b (Cpt1b) genes. An increase in leucine owing to fasting-induced muscle degradation was suggested to lead to the histone acetylation. These findings support the previously unappreciated notion that sustainable promotion of histone acetylation in lipid oxidation genes of the muscle and adipose tissues during and after IF may contribute to sustained metabolic effects of IF.
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Affiliation(s)
- Sho Endo
- Department of Internal Medicine, Keio University School of Medicine, Tokyo, 160-8582, Japan
| | - Asuka Uto
- Department of Internal Medicine, Keio University School of Medicine, Tokyo, 160-8582, Japan
| | - Kazutoshi Miyashita
- Correspondence: Kazutoshi Miyashita, MD, PhD, Department of Internal Medicine, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan.
| | - Masaaki Sato
- Department of Internal Medicine, Keio University School of Medicine, Tokyo, 160-8582, Japan
| | - Hiroyuki Inoue
- Department of Internal Medicine, Keio University School of Medicine, Tokyo, 160-8582, Japan
| | - Kentaro Fujii
- Department of Internal Medicine, Keio University School of Medicine, Tokyo, 160-8582, Japan
| | - Aika Hagiwara
- Department of Internal Medicine, Keio University School of Medicine, Tokyo, 160-8582, Japan
| | - Masaki Ryuzaki
- Department of Internal Medicine, Keio University School of Medicine, Tokyo, 160-8582, Japan
| | - Takuma Oshida
- Department of Internal Medicine, Keio University School of Medicine, Tokyo, 160-8582, Japan
| | - Kenichiro Kinouchi
- Department of Internal Medicine, Keio University School of Medicine, Tokyo, 160-8582, Japan
| | - Hiroshi Itoh
- Department of Internal Medicine, Keio University School of Medicine, Tokyo, 160-8582, Japan
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Jiang M, Jang SE, Zeng L. The Effects of Extrinsic and Intrinsic Factors on Neurogenesis. Cells 2023; 12:cells12091285. [PMID: 37174685 PMCID: PMC10177620 DOI: 10.3390/cells12091285] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2023] [Revised: 04/18/2023] [Accepted: 04/25/2023] [Indexed: 05/15/2023] Open
Abstract
In the mammalian brain, neurogenesis is maintained throughout adulthood primarily in two typical niches, the subgranular zone (SGZ) of the dentate gyrus and the subventricular zone (SVZ) of the lateral ventricles and in other nonclassic neurogenic areas (e.g., the amygdala and striatum). During prenatal and early postnatal development, neural stem cells (NSCs) differentiate into neurons and migrate to appropriate areas such as the olfactory bulb where they integrate into existing neural networks; these phenomena constitute the multistep process of neurogenesis. Alterations in any of these processes impair neurogenesis and may even lead to brain dysfunction, including cognitive impairment and neurodegeneration. Here, we first summarize the main properties of mammalian neurogenic niches to describe the cellular and molecular mechanisms of neurogenesis. Accumulating evidence indicates that neurogenesis plays an integral role in neuronal plasticity in the brain and cognition in the postnatal period. Given that neurogenesis can be highly modulated by a number of extrinsic and intrinsic factors, we discuss the impact of extrinsic (e.g., alcohol) and intrinsic (e.g., hormones) modulators on neurogenesis. Additionally, we provide an overview of the contribution of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection to persistent neurological sequelae such as neurodegeneration, neurogenic defects and accelerated neuronal cell death. Together, our review provides a link between extrinsic/intrinsic factors and neurogenesis and explains the possible mechanisms of abnormal neurogenesis underlying neurological disorders.
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Affiliation(s)
- Mei Jiang
- Department of Human Anatomy, Dongguan Key Laboratory of Stem Cell and Regenerative Tissue Engineering, Dongguan Campus, Guangdong Medical University, Dongguan 523808, China
| | - Se Eun Jang
- Neural Stem Cell Research Lab, Research Department, National Neuroscience Institute, Singapore 308433, Singapore
| | - Li Zeng
- Neural Stem Cell Research Lab, Research Department, National Neuroscience Institute, Singapore 308433, Singapore
- Neuroscience and Behavioral Disorders Program, DUKE-NUS Graduate Medical School, Singapore 169857, Singapore
- Lee Kong Chian School of Medicine, Nanyang Technology University, Novena Campus, 11 Mandalay Road, Singapore 308232, Singapore
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10
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Yang Q, Li M, Liu J, Zhang L, Yuan R, Xu Y, Zheng J, Cao S, Dai H, Liao M, Lv M, Chen X, Guo Y, Xie X, Zhang L, Chen X, Liang W. Intermittent fasting ameliorates neuronal ferroptosis and cognitive impairment in mice after traumatic brain injury. Nutrition 2023; 109:111992. [PMID: 36871445 DOI: 10.1016/j.nut.2023.111992] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2022] [Revised: 01/21/2023] [Accepted: 01/27/2023] [Indexed: 02/05/2023]
Abstract
Ferroptosis, a newly characterized form of programmed cell death that results from lipid peroxidation and mitochondrial dysfunction, has been demonstrated to be involved in the pathogenesis of traumatic brain injury (TBI). Scientific evidence has shown that intermittent fasting (IF) reduces both the lipid peroxidation and the mitochondrial dysfunction, raising the question of whether IF affects the ferroptosis induced by TBI. Here, based on an established TBI animal model, we examine the effects of IF on the activation of ferroptosis pathway as well as related outcomes. We uncovered that a 1-mo IF elevated the protective Gpx4 and Hspb1 expression, and partly abolished the increase of Nfe2l2, Slc7a11, Alox8, Steap3, and Nox2 in the cortex, which were induced by TBI. Furthermore, the characteristic cellular damage induced by ferroptosis was alleviated by IF, as revealed by Perls' Prussian blue staining, Nissl staining, and transmission electron microscope examination. Consistently, we examined the outcomes of mice subjected to TBI and found an improved cognitive function of the IF mice. In sum, our study demonstrated, to our knowledge for the first time, that a 1-mo IF regimen partly ameliorates ferroptosis in the cortex of mice subjected to TBI, which potentially contributes to a lessening of cognitive impairment.
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Affiliation(s)
- Qiuyun Yang
- Department of Forensic Genetics, West China School of Basic Medical Sciences and Forensic Medicine, Sichuan University, Chengdu, China
| | - Manrui Li
- Department of Forensic Genetics, West China School of Basic Medical Sciences and Forensic Medicine, Sichuan University, Chengdu, China
| | - Jinyuan Liu
- Department of Forensic Genetics, West China School of Basic Medical Sciences and Forensic Medicine, Sichuan University, Chengdu, China
| | | | | | - Yang Xu
- Sichuan University, Chengdu, China
| | | | - Shuqiang Cao
- Department of Forensic Genetics, West China School of Basic Medical Sciences and Forensic Medicine, Sichuan University, Chengdu, China
| | - Hao Dai
- Department of Forensic Pathology and Forensic Clinical Medicine, West China School of Basic Medical Sciences and Forensic Medicine, Sichuan University, Chengdu, China
| | - Miao Liao
- Department of Forensic Genetics, West China School of Basic Medical Sciences and Forensic Medicine, Sichuan University, Chengdu, China
| | - Meili Lv
- Department of Immunology, West China School of Basic Medical Sciences and Forensic Medicine, Sichuan University, Chengdu, China
| | - Xiaogang Chen
- Department of Forensic Pathology and Forensic Clinical Medicine, West China School of Basic Medical Sciences and Forensic Medicine, Sichuan University, Chengdu, China
| | - Yadong Guo
- Department of Forensic Science, School of Basic Medical Sciences, Central South University, Changsha, Hunan, China
| | - Xiaoqi Xie
- Department of Critical Care Medicine, Sichuan University, Chengdu, China
| | | | - Xiameng Chen
- Department of Forensic Pathology and Forensic Clinical Medicine, West China School of Basic Medical Sciences and Forensic Medicine, Sichuan University, Chengdu, China.
| | - Weibo Liang
- Department of Forensic Genetics, West China School of Basic Medical Sciences and Forensic Medicine, Sichuan University, Chengdu, China.
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Melgar-Locatelli S, de Ceglia M, Mañas-Padilla MC, Rodriguez-Pérez C, Castilla-Ortega E, Castro-Zavala A, Rivera P. Nutrition and adult neurogenesis in the hippocampus: Does what you eat help you remember? Front Neurosci 2023; 17:1147269. [PMID: 36908779 PMCID: PMC9995971 DOI: 10.3389/fnins.2023.1147269] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2023] [Accepted: 02/06/2023] [Indexed: 02/25/2023] Open
Abstract
Neurogenesis is a complex process by which neural progenitor cells (NPCs)/neural stem cells (NSCs) proliferate and differentiate into new neurons and other brain cells. In adulthood, the hippocampus is one of the areas with more neurogenesis activity, which is involved in the modulation of both emotional and cognitive hippocampal functions. This complex process is affected by many intrinsic and extrinsic factors, including nutrition. In this regard, preclinical studies performed in rats and mice demonstrate that high fats and/or sugars diets have a negative effect on adult hippocampal neurogenesis (AHN). In contrast, diets enriched with bioactive compounds, such as polyunsaturated fatty acids and polyphenols, as well as intermittent fasting or caloric restriction, can induce AHN. Interestingly, there is also growing evidence demonstrating that offspring AHN can be affected by maternal nutrition in the perinatal period. Therefore, nutritional interventions from early stages and throughout life are a promising perspective to alleviate neurodegenerative diseases by stimulating neurogenesis. The underlying mechanisms by which nutrients and dietary factors affect AHN are still being studied. Interestingly, recent evidence suggests that additional peripheral mediators may be involved. In this sense, the microbiota-gut-brain axis mediates bidirectional communication between the gut and the brain and could act as a link between nutritional factors and AHN. The aim of this mini-review is to summarize, the most recent findings related to the influence of nutrition and diet in the modulation of AHN. The importance of maternal nutrition in the AHN of the offspring and the role of the microbiota-gut-brain axis in the nutrition-neurogenesis relationship have also been included.
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Affiliation(s)
- Sonia Melgar-Locatelli
- Instituto de Investigación Biomédica de Málaga y Plataforma en Nanomedicina-IBIMA Plataforma BIONAND, Málaga, Spain.,Departamento de Psicobiología y Metodología de las Ciencias del Comportamiento, Facultad de Psicología, Universidad de Málaga, Málaga, Spain
| | - Marialuisa de Ceglia
- Instituto de Investigación Biomédica de Málaga y Plataforma en Nanomedicina-IBIMA Plataforma BIONAND, Málaga, Spain.,UGC Salud Mental, Hospital Universitario Regional de Málaga, Málaga, Spain
| | - M Carmen Mañas-Padilla
- Instituto de Investigación Biomédica de Málaga y Plataforma en Nanomedicina-IBIMA Plataforma BIONAND, Málaga, Spain.,Departamento de Psicobiología y Metodología de las Ciencias del Comportamiento, Facultad de Psicología, Universidad de Málaga, Málaga, Spain
| | - Celia Rodriguez-Pérez
- Departamento de Nutrición y Bromatología, Facultad de Ciencias de la Salud, Universidad de Granada, Granada, Spain.,Instituto de Nutrición y Tecnología de los Alimentos 'José Mataix', Universidad de Granada, Granada, Spain.,Instituto de Investigación Biosanitaria ibs.GRANADA, Granada, Spain
| | - Estela Castilla-Ortega
- Instituto de Investigación Biomédica de Málaga y Plataforma en Nanomedicina-IBIMA Plataforma BIONAND, Málaga, Spain.,Departamento de Psicobiología y Metodología de las Ciencias del Comportamiento, Facultad de Psicología, Universidad de Málaga, Málaga, Spain
| | - Adriana Castro-Zavala
- Instituto de Investigación Biomédica de Málaga y Plataforma en Nanomedicina-IBIMA Plataforma BIONAND, Málaga, Spain.,Departamento de Psicobiología y Metodología de las Ciencias del Comportamiento, Facultad de Psicología, Universidad de Málaga, Málaga, Spain
| | - Patricia Rivera
- Instituto de Investigación Biomédica de Málaga y Plataforma en Nanomedicina-IBIMA Plataforma BIONAND, Málaga, Spain.,UGC Salud Mental, Hospital Universitario Regional de Málaga, Málaga, Spain
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Xu Y, Liu Z, Xu S, Li C, Li M, Cao S, Sun Y, Dai H, Guo Y, Chen X, Liang W. Scientific Evidences of Calorie Restriction and Intermittent Fasting for Neuroprotection in Traumatic Brain Injury Animal Models: A Review of the Literature. Nutrients 2022; 14:1431. [PMID: 35406044 PMCID: PMC9002547 DOI: 10.3390/nu14071431] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2022] [Revised: 03/28/2022] [Accepted: 03/28/2022] [Indexed: 12/11/2022] Open
Abstract
It has widely been accepted that food restriction (FR) without malnutrition has multiple health benefits. Various calorie restriction (CR) and intermittent fasting (IF) regimens have recently been reported to exert neuroprotective effects in traumatic brain injury (TBI) through variable mechanisms. However, the evidence connecting CR or IF to neuroprotection in TBI as well as current issues remaining in this research field have yet to be reviewed in literature. The objective of our review was therefore to weigh the evidence that suggests the connection between CR/IF with recovery promotion following TBI. Medline, Google Scholar and Web of Science were searched from inception to 25 February 2022. An overwhelming number of results generated suggest that several types of CR/IF play a promising role in promoting post-TBI recovery. This recovery is believed to be achieved by alleviating mitochondrial dysfunction, promoting hippocampal neurogenesis, inhibiting glial cell responses, shaping neural cell plasticity, as well as targeting apoptosis and autophagy. Further, we represent our views on the current issues and provide thoughts on the future direction of this research field.
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Affiliation(s)
- Yang Xu
- West China School of Basic Medical Sciences and Forensic Medicine, Sichuan University, Chengdu 610041, China; (Y.X.); (S.X.); (C.L.); (Y.S.)
| | - Zejie Liu
- Department of Forensic Pathology and Forensic Clinical Medicine, West China School of Basic Medical Sciences and Forensic Medicine, Sichuan University, Chengdu 610041, China; (Z.L.); (H.D.)
| | - Shuting Xu
- West China School of Basic Medical Sciences and Forensic Medicine, Sichuan University, Chengdu 610041, China; (Y.X.); (S.X.); (C.L.); (Y.S.)
| | - Chengxian Li
- West China School of Basic Medical Sciences and Forensic Medicine, Sichuan University, Chengdu 610041, China; (Y.X.); (S.X.); (C.L.); (Y.S.)
| | - Manrui Li
- Department of Forensic Genetics, West China School of Basic Medical Sciences and Forensic Medicine, Sichuan University, Chengdu 610041, China; (M.L.); (S.C.)
| | - Shuqiang Cao
- Department of Forensic Genetics, West China School of Basic Medical Sciences and Forensic Medicine, Sichuan University, Chengdu 610041, China; (M.L.); (S.C.)
| | - Yuwen Sun
- West China School of Basic Medical Sciences and Forensic Medicine, Sichuan University, Chengdu 610041, China; (Y.X.); (S.X.); (C.L.); (Y.S.)
| | - Hao Dai
- Department of Forensic Pathology and Forensic Clinical Medicine, West China School of Basic Medical Sciences and Forensic Medicine, Sichuan University, Chengdu 610041, China; (Z.L.); (H.D.)
| | - Yadong Guo
- Department of Forensic Science, School of Basic Medical Sciences, Central South University, Changsha 410013, China;
| | - Xiameng Chen
- Department of Forensic Pathology and Forensic Clinical Medicine, West China School of Basic Medical Sciences and Forensic Medicine, Sichuan University, Chengdu 610041, China; (Z.L.); (H.D.)
| | - Weibo Liang
- Department of Forensic Genetics, West China School of Basic Medical Sciences and Forensic Medicine, Sichuan University, Chengdu 610041, China; (M.L.); (S.C.)
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