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Matsuzaki K, Sugimoto N, Hossain S, Islam R, Sumiyoshi E, Hashimoto M, Kishi H, Shido O. Theobromine improves hyperactivity, inattention, and working memory via modulation of dopaminergic neural function in the frontal cortex of spontaneously hypertensive rats. Food Funct 2024; 15:5579-5595. [PMID: 38713055 DOI: 10.1039/d4fo00683f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/08/2024]
Abstract
Attention-deficit/hyperactivity disorder (ADHD) is a developmental disorder and dopaminergic dysfunction in the prefrontal cortex (PFC) may play a role. Our previous research indicated that theobromine (TB), a methylxanthine, enhances cognitive function in rodents via the PFC. This study investigates TB's effects on hyperactivity and cognitive function in stroke-prone spontaneously hypertensive rats (SHR), an ADHD animal model. Male SHRs (6-week old) received a diet containing 0.05% TB for 40 days, while control rats received normal diets. Age-matched male Wistar-Kyoto rats (WKY) served as genetic controls. During the TB administration period, we conducted open-field tests and Y-maze tasks to evaluate hyperactivity and cognitive function, then assessed dopamine concentrations and tyrosine hydroxylase (TH), dopamine receptor D1-5 (DRD1-5), dopamine transporter (DAT), vesicular monoamine transporter-2 (VMAT-2), synaptosome-associated protein-25 (SNAP-25), and brain-derived neurotrophic factor (BDNF) expressions in the PFC. Additionally, the binding affinity of TB for the adenosine receptors (ARs) was evaluated. Compared to WKY, SHR exhibited hyperactivity, inattention and working memory deficits. However, chronic TB administration significantly improved these ADHD-like behaviors in SHR. TB administration also normalized dopamine concentrations and expression levels of TH, DRD2, DRD4, SNAP-25, and BDNF in the PFC of SHR. No changes were observed in DRD1, DRD3, DRD5, DAT, and VMAT-2 expression between SHR and WKY rats, and TB intake had minimal effects. TB was found to have affinity binding to ARs. These results indicate that long-term TB supplementation mitigates hyperactivity, inattention and cognitive deficits in SHR by modulating dopaminergic nervous function and BDNF levels in the PFC, representing a potential adjunctive treatment for ADHD.
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Affiliation(s)
- Kentaro Matsuzaki
- Department of Environmental Physiology, Faculty of Medicine, Shimane University, Izumo, Japan.
| | - Naotoshi Sugimoto
- Department of Environmental Physiology, Faculty of Medicine, Shimane University, Izumo, Japan.
- Faculty of Health Sciences, Institute of Medical, Pharmaceutical and Health Sciences, Kanazawa University, Kanazawa, Japan.
- Department of Pediatrics, School of Medicine, Institute of Medical, Pharmaceutical and Health Sciences, Kanazawa University, Kanazawa, Japan
| | - Shahdat Hossain
- Department of Environmental Physiology, Faculty of Medicine, Shimane University, Izumo, Japan.
- Department of Biochemistry and Molecular Biology, Jahangirnagar University, Savar, Dhaka, Bangladesh.
| | - Rafiad Islam
- Department of Environmental Physiology, Faculty of Medicine, Shimane University, Izumo, Japan.
- Department of Psychiatry, Yale University School of Medicine, CT, USA.
| | - Eri Sumiyoshi
- Department of Environmental Physiology, Faculty of Medicine, Shimane University, Izumo, Japan.
- Department of Sports and Health Science, Faculty of Human Health Science, Matsumoto University, Matsumoto, Japan.
| | - Michio Hashimoto
- Department of Environmental Physiology, Faculty of Medicine, Shimane University, Izumo, Japan.
| | - Hiroko Kishi
- Department of Environmental Physiology, Faculty of Medicine, Shimane University, Izumo, Japan.
| | - Osamu Shido
- Department of Environmental Physiology, Faculty of Medicine, Shimane University, Izumo, Japan.
- Shimane Rehabilitation College, Oku-izumo, Shimane, Japan.
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Guo L, Li S, Zhang Y, Yang X, Zhang Y, Cui H, Li Y. Effects of exercise intensity on spatial memory performance and hippocampal synaptic function in SAMP8 mice. Neurobiol Learn Mem 2023:107791. [PMID: 37380098 DOI: 10.1016/j.nlm.2023.107791] [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: 01/31/2023] [Revised: 06/11/2023] [Accepted: 06/16/2023] [Indexed: 06/30/2023]
Abstract
Learning and memory impairment is commonly noted in Alzheimer's disease (AD), which is regarded as a progressive synaptic failure disease. Exercise is a nonpharmacological strategy that may help prevent cognitive decline and reduce the risk of AD, which is usually thought to be related to synaptic damage in the hippocampus. However, the effects of exercise intensity on hippocampal memory and synaptic function in AD remain unclear. In this study, senescence-accelerated mouse prone-8 (SAMP8) mice were randomly assigned to the control group (Con), low-intensity exercise group (Low), and moderate-intensity exercise group (Mid). Here, we showed that eight weeks of treadmill exercise beginning in four-month-old mice improved spatial memory and recognition memory in six-month-old SAMP8 mice, while the Con group exhibited impaired spatial memory and recognition memory. Treadmill exercise also improved hippocampal neuron morphology in SAMP8 mice. Furthermore, dendritic spine density and the levels of postsynaptic density protein-95 (PSD95) and Synaptophysin (SYN) increased significantly in the Low and Mid groups as compared with the Con group. We further showed that moderate-intensity exercise (60% of maximum speed) was more efficacious in increasing dendritic spine density、PSD95 and SYN, than low-intensity exercise (40% of maximum speed). In conclusion, the positive effect of treadmill exercise is closely related to exercise intensity, with moderate-intensity exercise showing the most optimal effects.
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Affiliation(s)
- Linlin Guo
- College of Nursing, Hebei Medical University, Shijiazhuang, China
| | - Sha Li
- Department of Anatomy, Hebei Medical University, Shijiazhuang, China; Neuroscience Research Center, Hebei Medical University, Shijiazhuang, China; Hebei Key Laboratory of Neurodegenerative Disease Mechanism, Shijiazhuang, China
| | - Yizhou Zhang
- Department of Anatomy, Hebei Medical University, Shijiazhuang, China
| | - Xinxin Yang
- College of Nursing, Hebei Medical University, Shijiazhuang, China
| | - Yuanyuan Zhang
- College of Nursing, Hebei Medical University, Shijiazhuang, China
| | - Huixian Cui
- Department of Anatomy, Hebei Medical University, Shijiazhuang, China; Neuroscience Research Center, Hebei Medical University, Shijiazhuang, China; Hebei Key Laboratory of Neurodegenerative Disease Mechanism, Shijiazhuang, China.
| | - Yan Li
- College of Nursing, Hebei Medical University, Shijiazhuang, China; Neuroscience Research Center, Hebei Medical University, Shijiazhuang, China; Hebei Key Laboratory of Neurodegenerative Disease Mechanism, Shijiazhuang, China.
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A Systematic Review of In Vivo Studies of the Efficacy of Herbal Medicines for Anti-Aging in the Last Five Years. Pharmaceuticals (Basel) 2023; 16:ph16030448. [PMID: 36986547 PMCID: PMC10054545 DOI: 10.3390/ph16030448] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2023] [Revised: 03/10/2023] [Accepted: 03/14/2023] [Indexed: 03/19/2023] Open
Abstract
Background: The world’s population is rapidly aging, and attention to and research on the increase in life expectancy and age-related diseases are needed. This study aimed to review the in vivo studies on the anti-aging effects of herbal medicines. Methods: In vivo studies of single or complex herbal medicines for anti-aging that were published in the last five years were included in this review. The following databases were used: PubMed, Scopus, ScienceDirect, Web of Science and EMBASE. Results: A total of 41 studies were considered eligible for the review. The articles were classified into body organs and functions, experimental country, herbal medicine, extraction method, administration route, dosage, duration, animal model, aging-induced method, sex, number of animals per group, and outcomes and mechanisms A single herbal extract was used in a total of 21 studies including Alpinia oxyphylla Miq., Acanthopanax senticosus and Lyceum barbarum, and a multi-compound herbal prescription was used in a total of 20 studies, including Modified Qiongyu paste, Wuzi Yanzong recipe, etc. Each herbal medicine had anti-aging effects on learning and memory, cognition, emotion, internal organs, gastrointestinal tracts, sexual functions, musculoskeletal function and so on. The common mechanisms of action were antioxidant and anti-inflammatory, and various effects and mechanisms for each organ and function were identified. Conclusions: Herbal medicine exhibited beneficial effects on anti-aging in various parts of the body and its function. Further investigation of the appropriate herbal medicine prescriptions and their components is recommended.
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Hashimoto M, Matsuzaki K, Maruyama K, Sumiyoshi E, Hossain S, Wakatsuki H, Kato S, Ohno M, Tanabe Y, Kuroda Y, Yamaguchi S, Kajima K, Ohizumi Y, Shido O. Perilla frutescens seed oil combined with Anredera cordifolia leaf powder attenuates age-related cognitive decline by reducing serum triglyceride and glucose levels in healthy elderly Japanese individuals: a possible supplement for brain health. Food Funct 2022; 13:7226-7239. [PMID: 35722977 DOI: 10.1039/d2fo00723a] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We have shown that Anredera cordifolia extract improves learning and memory in a senescence-accelerated mouse model, and that α-linolenic acid (ALA)-rich Perilla frutescens seed oil (PO) improves brain function in healthy Japanese adults and elderly individuals. Herein, we present a 12-month, randomised, double-blind, parallel-armed intervention trial examining the effects of PO supplementation alone or in combination with A. cordifolia leaf powder on brain function in healthy elderly Japanese individuals. Participants were randomly divided into two groups: the PO group received 1.47 mL PO (0.88 g ALA) daily via soft gelatine capsules, and the POAC group received 1.47 mL PO and 1.12 g A. cordifolia leaf powder (1.46 mg vitexin and 1.12 mg adenosine) daily. After 12 months of intervention, the POAC group showed generally higher cognitive index scores than the PO group. The beneficial effects of combined supplementation on cognitive function were associated with increased ALA and eicosapentaenoic acid levels in red blood cell plasma membranes, increased serum biological antioxidant potential, and decreased serum triglyceride, glucose, and N-(epsilon)-carboxymethyl-lysine (CML), an advanced glycation end-product and biochemical marker of oxidative stress levels. The effects of combined supplementation on cognitive function also showed a significant negative correlation with serum CML levels after 12 months of intervention. Our findings suggest that combined long-term supplementation with PO and A. cordifolia more effectively ameliorates age-related cognitive decline than PO alone. These findings may serve as a basis for the development of new supplements for brain health. Clinical Trial Registry, UMIN000040863.
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Affiliation(s)
- Michio Hashimoto
- Department of Environmental Physiology, Faculty of Medicine, Shimane University, Izumo, Shimane, Japan.
| | - Kentaro Matsuzaki
- Department of Environmental Physiology, Faculty of Medicine, Shimane University, Izumo, Shimane, Japan.
| | | | - Eri Sumiyoshi
- Department of Environmental Physiology, Faculty of Medicine, Shimane University, Izumo, Shimane, Japan.
| | - Shahdat Hossain
- Department of Biochemistry and Molecular Biology, Jahangirnagar University, Savar, Dhaka, Bangladesh
| | - Harumi Wakatsuki
- Department of Environmental Physiology, Faculty of Medicine, Shimane University, Izumo, Shimane, Japan.
| | - Setsushi Kato
- Kato Hospital, Jinjukai Healthcare Corporation, Kawamoto, Shimane, Japan
| | - Miho Ohno
- Kato Hospital, Jinjukai Healthcare Corporation, Kawamoto, Shimane, Japan
| | - Yoko Tanabe
- Department of Environmental Physiology, Faculty of Medicine, Shimane University, Izumo, Shimane, Japan.
| | - Yoko Kuroda
- Department of Internal Medicine III, Faculty of Medicine, Shimane University, Izumo, Shimane, Japan
| | | | - Koji Kajima
- Sankyo Holdings Co., Ltd, Fuji, Shizuoka, Japan
| | - Yasushi Ohizumi
- Kansei Fukushi Research Institute, Tohoku Fukushi University, Sendai, Miyagi, Japan
| | - Osamu Shido
- Department of Environmental Physiology, Faculty of Medicine, Shimane University, Izumo, Shimane, Japan.
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Al Mamun A, Matsuzaki K, Islam R, Hossain S, Hossain ME, Katakura M, Arai H, Shido O, Hashimoto M. Chronic Administration of Thymoquinone Enhances Adult Hippocampal Neurogenesis and Improves Memory in Rats Via Regulating the BDNF Signaling Pathway. Neurochem Res 2021; 47:933-951. [PMID: 34855048 DOI: 10.1007/s11064-021-03495-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2021] [Revised: 11/01/2021] [Accepted: 11/22/2021] [Indexed: 02/01/2023]
Abstract
Thymoquinone is a pharmacologically active component of Nigella sativa Linn. seeds. Despite the diverse neuropharmacological attributes of TQ, limited reports related to adult neurogenesis and memory research are available. In this study, we investigated the effects of TQ on the proliferation and neural differentiation of cultured neural stem/progenitor cells (NSCs/NPCs). We also investigated the effect of TQ chronic administration on neurogenesis and memory in adult rats. Under proliferation conditions, TQ (0.05-0.3 μM) significantly increased NSCs/NPCs viability, neurosphere diameter, and cell count. TQ treatment under differentiation conditions increased the proportion of cells positive for Tuj1 (a neuronal marker). Furthermore, chronic oral administration of TQ (25 mg/kg/day for 12 weeks) to adult rats increased the number of bromodeoxyuridine (BrdU)-immunopositive cells double-stained with a mature neuronal marker, neuronal nuclei (NeuN), and a proliferation marker, doublecortin (Dcx), in the dentate gyrus of the hippocampus. TQ-administered rats showed a profound beneficial effect on avoidance-related learning ability, associated with an increase in the hippocampal mRNA and protein levels of brain-derived neurotrophic factor (BDNF), as measured by both real-time PCR and ELISA. Western blot analysis revealed that TQ stimulates the phosphorylation of cAMP-response element-binding protein (CREB), the upstream signaling molecule in the BDNF pathway. Furthermore, chronic administration of TQ decreased lipid peroxide and reactive oxygen species levels in the hippocampus. Taken together, our results suggest that TQ plays a role in memory improvement in adult rats and that the CREB/BDNF signaling pathways are involved in mediating the actions of TQ in hippocampal neurogenesis.
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Affiliation(s)
- Abdullah Al Mamun
- Department of Environmental Physiology, Faculty of Medicine, Shimane University, Enya-cho, Izumo, Japan.,Department of Neurology, The University of Texas Health Science Center at Houston McGovern Medical School, Houston, TX, 77030, USA
| | - Kentaro Matsuzaki
- Department of Environmental Physiology, Faculty of Medicine, Shimane University, Enya-cho, Izumo, Japan
| | - Rafiad Islam
- Department of Environmental Physiology, Faculty of Medicine, Shimane University, Enya-cho, Izumo, Japan.,Department of Psychiatry, Yale University School of Medicine, New Haven, CT, 06510, USA
| | - Shahdat Hossain
- Department of Environmental Physiology, Faculty of Medicine, Shimane University, Enya-cho, Izumo, Japan.,Department of Biochemistry and Molecular Biology, Jahangirnagar University, Savar, Dhaka, 1342, Bangladesh
| | - Md Emon Hossain
- Department of Environmental Physiology, Faculty of Medicine, Shimane University, Enya-cho, Izumo, Japan.,Department of Biochemistry and Molecular Genetics, University of Alabama at Birmingham, Birmingham, AL, 35294, USA
| | - Masanori Katakura
- Department of Environmental Physiology, Faculty of Medicine, Shimane University, Enya-cho, Izumo, Japan.,Department of Nutritional Physiology, Faculty of Pharmaceutical Sciences, Josai University, Sakado, 350-0295, Japan
| | - Hiroyuki Arai
- Department of Geriatrics & Gerontology Division of Brain Science Institute of Development, Aging and Cancer (IDAC), Tohoku University, Sendai, Miyagi, Japan
| | - Osamu Shido
- Department of Environmental Physiology, Faculty of Medicine, Shimane University, Enya-cho, Izumo, Japan
| | - Michio Hashimoto
- Department of Environmental Physiology, Faculty of Medicine, Shimane University, Enya-cho, Izumo, Japan.
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Curcuma longa extract ameliorates motor and cognitive deficits of 6-hydroxydopamine-infused Parkinson’s disease model rats. ADVANCES IN TRADITIONAL MEDICINE 2021. [DOI: 10.1007/s13596-021-00606-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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Yang J, Jia Z, Xiao Z, Zhao J, Lu Y, Chu L, Shao H, Pei L, Zhang S, Chen Y. Baicalin Rescues Cognitive Dysfunction, Mitigates Neurodegeneration, and Exerts Anti-Epileptic Effects Through Activating TLR4/MYD88/Caspase-3 Pathway in Rats. Drug Des Devel Ther 2021; 15:3163-3180. [PMID: 34321866 PMCID: PMC8312624 DOI: 10.2147/dddt.s314076] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2021] [Accepted: 07/05/2021] [Indexed: 12/12/2022] Open
Abstract
Purpose This study aims to evaluate the beneficial effects of anti-epileptic mechanisms of baicalin (BA) on cognitive dysfunction and neurodegeneration in pentylenetetrazol (PTZ)-induced epileptic rats. Methods First, PTZ-induced epileptic rats were administered intraperitoneally a sub-convulsive dose of PTZ (40 mg/kg) daily, and the seizure susceptibility (the degree of seizures and latency) was evaluated using Racine’s criterion. Then, classical behavioral experiments were performed to test whether BA ameliorated cognitive dysfunction. Neurodegeneration was assessed using Fluoro Jade-B (FJB), and NeuN staining was used to determine whether BA offered a neuroprotective role. After BA had been proven to possess anti-epileptic effects, its possible mechanisms were analyzed through network pharmacology. Finally, the key targets for predictive mechanisms were experimentally verified. Results The epileptic model was successfully established, and BA had anti-epileptic effects. Epileptic rats displayed significant cognitive dysfunction, and BA markedly ameliorated cognitive dysfunction. Further, we also discovered that BA treatment mitigated neurodegeneration of the hippocampus CA3 regions, thereby ameliorated cognitive dysfunction of epileptic rats. Subsequent network pharmacology analysis was implemented to reveal a possible mechanism of BA in the anti-epileptic process and the TLR4/MYD88/Caspase-3 pathway was predicted. Finally, experimental studies showed that BA exerted an anti-epileptic effect by activating the TLR4/MYD88/Caspase-3 pathway in PTZ-induced epileptic rats. Conclusion In conclusion, BA had a protective effect against PTZ-induced seizures. BA improved cognitive dysfunction and exerted a neuroprotective action. The anti-epileptic effects of BA may be potentially through activation of the TLR4/MYD88/Caspase-3 pathway.
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Affiliation(s)
- Jiali Yang
- School of Integrated Traditional Chinese and Western Medicine, Hebei University of Chinese Medicine, Shijiazhuang, Hebei, 050200, People's Republic of China
| | - Zhixia Jia
- School of Integrated Traditional Chinese and Western Medicine, Hebei University of Chinese Medicine, Shijiazhuang, Hebei, 050200, People's Republic of China
| | - Zhigang Xiao
- School of Integrated Traditional Chinese and Western Medicine, Hebei University of Chinese Medicine, Shijiazhuang, Hebei, 050200, People's Republic of China
| | - Jing Zhao
- Hebei Key Laboratory of Turbidity, Hebei Academy of Chinese Medicine Sciences, Shijiazhuang, Hebei, 050011, People's Republic of China
| | - Ye Lu
- Hebei Key Laboratory of Turbidity, Hebei Academy of Chinese Medicine Sciences, Shijiazhuang, Hebei, 050011, People's Republic of China
| | - Li Chu
- School of Pharmacy, Hebei University of Chinese Medicine, Shijiazhuang, Hebei, 050200, People's Republic of China
| | - Hui Shao
- School of Integrated Traditional Chinese and Western Medicine, Hebei University of Chinese Medicine, Shijiazhuang, Hebei, 050200, People's Republic of China.,Hebei Key Laboratory of Turbidity, Hebei Academy of Chinese Medicine Sciences, Shijiazhuang, Hebei, 050011, People's Republic of China
| | - Lin Pei
- School of Integrated Traditional Chinese and Western Medicine, Hebei University of Chinese Medicine, Shijiazhuang, Hebei, 050200, People's Republic of China.,Hebei Key Laboratory of Turbidity, Hebei Academy of Chinese Medicine Sciences, Shijiazhuang, Hebei, 050011, People's Republic of China
| | - Shaodan Zhang
- Pediatrics, The Second Hospital of Hebei Medical University, Shijiazhuang, Hebei, 050051, People's Republic of China
| | - Yuan Chen
- Pediatrics, The Second Hospital of Hebei Medical University, Shijiazhuang, Hebei, 050051, People's Republic of China
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