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Fan R, Zhang Y, Liu R, Wei C, Wang X, Wu X, Yu X, Li Z, Mao R, Hu J, Zhu N, Liu X, Li Y, Xu M. Exogenous Nucleotides Improve the Skin Aging of SAMP8 Mice by Modulating Autophagy through MAPKs and AMPK Pathways. Nutrients 2024; 16:1907. [PMID: 38931262 PMCID: PMC11206724 DOI: 10.3390/nu16121907] [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: 05/04/2024] [Revised: 06/07/2024] [Accepted: 06/15/2024] [Indexed: 06/28/2024] Open
Abstract
The skin, serving as the body's primary defense against external elements, plays a crucial role in protecting the body from infections and injuries, as well as maintaining overall homeostasis. Skin aging, a common manifestation of the aging process, involves the gradual deterioration of its normal structure and repair mechanisms. Addressing the issue of skin aging is increasingly imperative. Multiple pieces of evidence indicate the potential anti-aging effects of exogenous nucleotides (NTs) through their ability to inhibit oxidative stress and inflammation. This study aims to investigate whether exogenous NTs can slow down skin aging and elucidate the underlying mechanisms. To achieve this objective, senescence-accelerated mouse prone-8 (SAMP8) mice were utilized and randomly allocated into Aging, NTs-low, NTs-middle, and NTs-high groups, while senescence-accelerated mouse resistant 1 (SAMR1) mice were employed as the control group. After 9 months of NT intervention, dorsal skin samples were collected to analyze the pathology and assess the presence and expression of substances related to the aging process. The findings indicated that a high-dose NT treatment led to a significant increase in the thickness of the epithelium and dermal layers, as well as Hyp content (p < 0.05). Additionally, it was observed that low-dose NT intervention resulted in improved aging, as evidenced by a significant decrease in p16 expression (p < 0.05). Importantly, the administration of high doses of NTs could improve, in some ways, mitochondrial function, which is known to reduce oxidative stress and promote ATP and NAD+ production significantly. These observed effects may be linked to NT-induced autophagy, as evidenced by the decreased expression of p62 and increased expression of LC3BI/II in the intervention groups. Furthermore, NTs were found to upregulate pAMPK and PGC-1α expression while inhibiting the phosphorylation of p38MAPK, JNK, and ERK, suggesting that autophagy may be regulated through the AMPK and MAPK pathways. Therefore, the potential induction of autophagy by NTs may offer benefits in addressing skin aging through the activation of the AMPK pathway and the inhibition of the MAPK pathway.
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Affiliation(s)
- Rui Fan
- Department of Nutrition and Food Hygiene, School of Public Health, Peking University, Beijing 100191, China; (R.F.); (Y.Z.); (R.L.); (C.W.); (X.W.); (X.W.); (X.Y.); (Z.L.); (R.M.); (J.H.); (N.Z.); (X.L.); (Y.L.)
- Beijing Key Laboratory of Toxicological Research and Risk Assessment for Food Safety, Peking University, Beijing 100191, China
| | - Ying Zhang
- Department of Nutrition and Food Hygiene, School of Public Health, Peking University, Beijing 100191, China; (R.F.); (Y.Z.); (R.L.); (C.W.); (X.W.); (X.W.); (X.Y.); (Z.L.); (R.M.); (J.H.); (N.Z.); (X.L.); (Y.L.)
- Beijing Key Laboratory of Toxicological Research and Risk Assessment for Food Safety, Peking University, Beijing 100191, China
| | - Rui Liu
- Department of Nutrition and Food Hygiene, School of Public Health, Peking University, Beijing 100191, China; (R.F.); (Y.Z.); (R.L.); (C.W.); (X.W.); (X.W.); (X.Y.); (Z.L.); (R.M.); (J.H.); (N.Z.); (X.L.); (Y.L.)
- Beijing Key Laboratory of Toxicological Research and Risk Assessment for Food Safety, Peking University, Beijing 100191, China
| | - Chan Wei
- Department of Nutrition and Food Hygiene, School of Public Health, Peking University, Beijing 100191, China; (R.F.); (Y.Z.); (R.L.); (C.W.); (X.W.); (X.W.); (X.Y.); (Z.L.); (R.M.); (J.H.); (N.Z.); (X.L.); (Y.L.)
- Beijing Key Laboratory of Toxicological Research and Risk Assessment for Food Safety, Peking University, Beijing 100191, China
| | - Xiujuan Wang
- Department of Nutrition and Food Hygiene, School of Public Health, Peking University, Beijing 100191, China; (R.F.); (Y.Z.); (R.L.); (C.W.); (X.W.); (X.W.); (X.Y.); (Z.L.); (R.M.); (J.H.); (N.Z.); (X.L.); (Y.L.)
- Beijing Key Laboratory of Toxicological Research and Risk Assessment for Food Safety, Peking University, Beijing 100191, China
| | - Xin Wu
- Department of Nutrition and Food Hygiene, School of Public Health, Peking University, Beijing 100191, China; (R.F.); (Y.Z.); (R.L.); (C.W.); (X.W.); (X.W.); (X.Y.); (Z.L.); (R.M.); (J.H.); (N.Z.); (X.L.); (Y.L.)
- Beijing Key Laboratory of Toxicological Research and Risk Assessment for Food Safety, Peking University, Beijing 100191, China
| | - Xiaochen Yu
- Department of Nutrition and Food Hygiene, School of Public Health, Peking University, Beijing 100191, China; (R.F.); (Y.Z.); (R.L.); (C.W.); (X.W.); (X.W.); (X.Y.); (Z.L.); (R.M.); (J.H.); (N.Z.); (X.L.); (Y.L.)
- Beijing Key Laboratory of Toxicological Research and Risk Assessment for Food Safety, Peking University, Beijing 100191, China
| | - Zhen Li
- Department of Nutrition and Food Hygiene, School of Public Health, Peking University, Beijing 100191, China; (R.F.); (Y.Z.); (R.L.); (C.W.); (X.W.); (X.W.); (X.Y.); (Z.L.); (R.M.); (J.H.); (N.Z.); (X.L.); (Y.L.)
- Beijing Key Laboratory of Toxicological Research and Risk Assessment for Food Safety, Peking University, Beijing 100191, China
| | - Ruixue Mao
- Department of Nutrition and Food Hygiene, School of Public Health, Peking University, Beijing 100191, China; (R.F.); (Y.Z.); (R.L.); (C.W.); (X.W.); (X.W.); (X.Y.); (Z.L.); (R.M.); (J.H.); (N.Z.); (X.L.); (Y.L.)
- Beijing Key Laboratory of Toxicological Research and Risk Assessment for Food Safety, Peking University, Beijing 100191, China
| | - Jiani Hu
- Department of Nutrition and Food Hygiene, School of Public Health, Peking University, Beijing 100191, China; (R.F.); (Y.Z.); (R.L.); (C.W.); (X.W.); (X.W.); (X.Y.); (Z.L.); (R.M.); (J.H.); (N.Z.); (X.L.); (Y.L.)
- Beijing Key Laboratory of Toxicological Research and Risk Assessment for Food Safety, Peking University, Beijing 100191, China
| | - Na Zhu
- Department of Nutrition and Food Hygiene, School of Public Health, Peking University, Beijing 100191, China; (R.F.); (Y.Z.); (R.L.); (C.W.); (X.W.); (X.W.); (X.Y.); (Z.L.); (R.M.); (J.H.); (N.Z.); (X.L.); (Y.L.)
- Beijing Key Laboratory of Toxicological Research and Risk Assessment for Food Safety, Peking University, Beijing 100191, China
| | - Xinran Liu
- Department of Nutrition and Food Hygiene, School of Public Health, Peking University, Beijing 100191, China; (R.F.); (Y.Z.); (R.L.); (C.W.); (X.W.); (X.W.); (X.Y.); (Z.L.); (R.M.); (J.H.); (N.Z.); (X.L.); (Y.L.)
- Beijing Key Laboratory of Toxicological Research and Risk Assessment for Food Safety, Peking University, Beijing 100191, China
| | - Yong Li
- Department of Nutrition and Food Hygiene, School of Public Health, Peking University, Beijing 100191, China; (R.F.); (Y.Z.); (R.L.); (C.W.); (X.W.); (X.W.); (X.Y.); (Z.L.); (R.M.); (J.H.); (N.Z.); (X.L.); (Y.L.)
- Beijing Key Laboratory of Toxicological Research and Risk Assessment for Food Safety, Peking University, Beijing 100191, China
| | - Meihong Xu
- Department of Nutrition and Food Hygiene, School of Public Health, Peking University, Beijing 100191, China; (R.F.); (Y.Z.); (R.L.); (C.W.); (X.W.); (X.W.); (X.Y.); (Z.L.); (R.M.); (J.H.); (N.Z.); (X.L.); (Y.L.)
- Beijing Key Laboratory of Toxicological Research and Risk Assessment for Food Safety, Peking University, Beijing 100191, China
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Pereira AAR, Pinto AM, Malerba HN, Toricelli M, Buck HS, Viel TA. Microdose lithium improves behavioral deficits and modulates molecular mechanisms of memory formation in female SAMP-8, a mouse model of accelerated aging. PLoS One 2024; 19:e0299534. [PMID: 38574297 PMCID: PMC10994667 DOI: 10.1371/journal.pone.0299534] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2023] [Accepted: 02/12/2024] [Indexed: 04/06/2024] Open
Abstract
Alzheimer's disease (AD) is the most common neuronal disorder that leads to the development of dementia. Until nowadays, some therapies may alleviate the symptoms, but there is no pharmacological treatment. Microdosing lithium has been used to modify the pathological characteristics of the disease, with effects in both experimental and clinical conditions. The present work aimed to analyze the effects of this treatment on spatial memory, anxiety, and molecular mechanisms related to long-term memory formation during the aging process of a mouse model of accelerated aging (SAMP-8). Female SAMP-8 showed learning and memory impairments together with disruption of memory mechanisms, neuronal loss, and increased density of senile plaques compared to their natural control strain, the senescence-accelerated mouse resistant (SAMR-1). Chronic treatment with lithium promoted memory maintenance, reduction in anxiety, and maintenance of proteins related to memory formation and neuronal density. The density of senile plaques was also reduced. An increase in the density of gamma-aminobutyric acid A (GABAA) and α7 nicotinic cholinergic receptors was also observed and related to neuroprotection and anxiety reduction. In addition, this microdose of lithium inhibited the activation of glycogen synthase kinase-3beta (GSK-3β), the classical mechanism of lithium cell effects, which could contribute to the preservation of the memory mechanism and reduction in senile plaque formation. This work shows that lithium effects in neuroprotection along the aging process are not related to a unique cellular mechanism but produce multiple effects that slowly protect the brain along the aging process.
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Affiliation(s)
- Arthur Antonio Ruiz Pereira
- Department of Pharmacology, Institute of Biomedical Sciences, Graduate Course on Pharmacology, Universidade de Sao Paulo, Sao Paulo, Sao Paulo, Brazil
- Laboratory of Neuropharmacology of Aging, School of Arts, Sciences and Humanities, Universidade de São Paulo, Sao Paulo, Sao Paulo, Brazil
| | - Alessandra Macedo Pinto
- Graduate Course on Gerontology, School of Arts, Sciences and Humanities, Universidade de São Paulo, Sao Paulo, Sao Paulo, Brazil
| | - Helena Nascimento Malerba
- Department of Pharmacology, Institute of Biomedical Sciences, Graduate Course on Pharmacology, Universidade de Sao Paulo, Sao Paulo, Sao Paulo, Brazil
- Laboratory of Neuropharmacology of Aging, School of Arts, Sciences and Humanities, Universidade de São Paulo, Sao Paulo, Sao Paulo, Brazil
| | - Mariana Toricelli
- Laboratory of Neuropharmacology of Aging, School of Arts, Sciences and Humanities, Universidade de São Paulo, Sao Paulo, Sao Paulo, Brazil
| | - Hudson Sousa Buck
- Laboratory of Neuropharmacology of Aging, School of Arts, Sciences and Humanities, Universidade de São Paulo, Sao Paulo, Sao Paulo, Brazil
- Department of Physiology, University of Mogi das Cruzes, Mogi das Cruzes, Sao Paulo, Brazil
| | - Tania Araujo Viel
- Department of Pharmacology, Institute of Biomedical Sciences, Graduate Course on Pharmacology, Universidade de Sao Paulo, Sao Paulo, Sao Paulo, Brazil
- Laboratory of Neuropharmacology of Aging, School of Arts, Sciences and Humanities, Universidade de São Paulo, Sao Paulo, Sao Paulo, Brazil
- Graduate Course on Gerontology, School of Arts, Sciences and Humanities, Universidade de São Paulo, Sao Paulo, Sao Paulo, Brazil
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Wang K, Pu Y, Chen L, Hoshino M, Uesugi K, Yagi N, Chen X, Usui Y, Hanashima A, Hashimoto K, Mohri S, Pierscionek BK. Optical development in the murine eye lens of accelerated senescence-prone SAMP8 and senescence-resistant SAMR1 strains. Exp Eye Res 2024; 241:109858. [PMID: 38467176 DOI: 10.1016/j.exer.2024.109858] [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: 01/07/2024] [Revised: 02/28/2024] [Accepted: 03/08/2024] [Indexed: 03/13/2024]
Abstract
The eye lens is responsible for focusing objects at various distances onto the retina and its refractive power is determined by its surface curvature as well as its internal gradient refractive index (GRIN). The lens continues to grow with age resulting in changes to the shape and to the GRIN profile. The present study aims to investigate how the ageing process may influence lens optical development. Murine lenses of accelerated senescence-prone strain (SAMP8) aged from 4 to 50 weeks; senescence-resistant strain (SAMR1) aged from 5 to 52 weeks as well as AKR strain (served as control) aged from 6 to 70 weeks were measured using the X-ray interferometer at the SPring-8 synchrotron Japan within three consecutive years from 2020 to 2022. Three dimensional distributions of the lens GRIN were reconstructed using the measured data and the lens shapes were determined using image segmentation in MatLab. Variations in the parameters describing the lens shape and the GRIN profile with age were compared amongst three mouse strains. With advancing age, both the lens anterior and posterior surface flattens and the lens sagittal thickness increase in all three mouse strains (Anterior radius of curvature increase at 0.008 mm/week, 0.007 mm/week and 0.002 mm/week while posterior radius of curvature increase at 0.002 mm/week, 0.007 mm/week and 0.003 mm/week respectively in AKR, SAMP8 and SAMR1 lenses). Compared with the AKR strain, the SAMP8 samples demonstrate a higher rate of increase in the posterior curvature radius (0.007 mm/week) and the thickness (0.015 mm/week), whilst the SAMR1 samples show slower increases in the anterior curvature radius (0.002 mm/week) and its thickness (0.013 mm/week). There are similar age-related trends in GRIN shape in the radial direction (in all three types of murine lenses nr2 and nr6 increase with age while nr4 decrease with age consistently) but not in the axial direction amongst three mouse strains (nz1 of AKR lens decrease while of SAMP8 and SAMR1 increase with age; nz2 of all three models increase with age; nz3 of AKR lens increase while of SAMP8 and SAMR1 decrease with age). The ageing process can influence the speed of lens shape change and affect the GRIN profile mainly in the axial direction, contributing to an accelerated decline rate of the optical power in the senescence-prone strain (3.5 D/week compared to 2.3 D/week in the AKR control model) but a retardatory decrease in the senescence-resistant strain (2.1 D/week compared to the 2.3D/week in the AKR control model).
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Affiliation(s)
- Kehao Wang
- School of Engineering Medicine and School of Biological Science and Medical Engineering, Beihang University, Beijing, China.
| | - Yutian Pu
- School of Engineering Medicine and School of Biological Science and Medical Engineering, Beihang University, Beijing, China.
| | - Leran Chen
- Peking University First Hospital, Beijing, China.
| | - Masato Hoshino
- Japan Synchrotron Radiation Research Institute (Spring-8), 1-1-1, Kouto, Sayo-cho, Sayo-gun, Hyogo, 679-5198, Japan.
| | - Kentaro Uesugi
- Japan Synchrotron Radiation Research Institute (Spring-8), 1-1-1, Kouto, Sayo-cho, Sayo-gun, Hyogo, 679-5198, Japan.
| | - Naoto Yagi
- Japan Synchrotron Radiation Research Institute (Spring-8), 1-1-1, Kouto, Sayo-cho, Sayo-gun, Hyogo, 679-5198, Japan.
| | - Xiaoyong Chen
- Department of Ophthalmology, Peking University Third Hospital, Beijing Key Laboratory of Restoration of Damaged Ocular Nerve, Peking University Third Hospital, China.
| | - Yuu Usui
- First Department of Physiology, Kawasaki Medical School, Kurashiki, Okayama, Japan.
| | - Akira Hanashima
- First Department of Physiology, Kawasaki Medical School, Kurashiki, Okayama, Japan.
| | - Ken Hashimoto
- First Department of Physiology, Kawasaki Medical School, Kurashiki, Okayama, Japan.
| | - Satoshi Mohri
- First Department of Physiology, Kawasaki Medical School, Kurashiki, Okayama, Japan.
| | - Barbara K Pierscionek
- Faculty of Health, Education, Medicine and Social Care, Medical Technology Research Centre, Anglia Ruskin University, Bishops Hall Lane, Chelmsford, United Kingdom.
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Barros RDS, Queiroz LAD, de Assis JB, Pantoja KC, Bustia SX, de Sousa ESA, Rodrigues SF, Akamine EH, Sá-Nunes A, Martins JO. Effects of low-dose rapamycin on lymphoid organs of mice prone and resistant to accelerated senescence. Front Immunol 2024; 15:1310505. [PMID: 38515742 PMCID: PMC10954823 DOI: 10.3389/fimmu.2024.1310505] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2023] [Accepted: 02/15/2024] [Indexed: 03/23/2024] Open
Abstract
Aging is a complex, natural, and irreversible phenomenon that subjects the body to numerous changes in the physiological process, characterized by a gradual decline in the organism's homeostatic mechanisms, closely related to immunosenescence. Here, we evaluated the regulation of immunosenescence in lymphoid organs of senescence-accelerated prone 8 (SAM-P8) and senescence-accelerated resistant 1 (SAM-R1) mice treated with a low dose of rapamycin (RAPA). Mice were treated with a dose of 7.1 µg/kg RAPA for 2 months and had body mass and hematological parameters analyzed prior and during treatment. Cellular and humoral parameters of serum, bone marrow, thymus, and spleen samples were evaluated by ELISA, histology, and flow cytometry. Changes in body mass, hematological parameters, cell number, and in the secretion of IL-1β, IL-6, TNF-α, IL-7, and IL-15 cytokines were different between the 2 models used. In histological analyses, we observed that SAM-P8 mice showed faster thymic involution than SAM-R1 mice. Regarding the T lymphocyte subpopulations in the spleen, CD4+ and CD8+ T cell numbers were higher and lower, respectively, in SAM-P8 mice treated with RAPA, with the opposite observed in SAM-R1. Additionally, we found that the low dose of RAPA used did not trigger changes that could compromise the immune response of these mice and the administered dose may have contributed to changes in important lymphocyte populations in the adaptive immune response and the secretion of cytokines that directly collaborate with the maturation and proliferation of these cells.
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Affiliation(s)
- Rafael dos Santos Barros
- Laboratory of Immunoendocrinology, School of Pharmaceutical Sciences, Department of Clinical and Toxicological Analyses, University of São Paulo, São Paulo, Brazil
| | - Luiz Adriano Damasceno Queiroz
- Laboratory of Immunoendocrinology, School of Pharmaceutical Sciences, Department of Clinical and Toxicological Analyses, University of São Paulo, São Paulo, Brazil
| | - Josiane Betim de Assis
- Laboratory of Experimental Immunology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
| | - Kamilla Costa Pantoja
- Laboratory of Immunoendocrinology, School of Pharmaceutical Sciences, Department of Clinical and Toxicological Analyses, University of São Paulo, São Paulo, Brazil
| | - Sofia Xavier Bustia
- Laboratory of Immunoendocrinology, School of Pharmaceutical Sciences, Department of Clinical and Toxicological Analyses, University of São Paulo, São Paulo, Brazil
| | - Emanuella Sarmento Alho de Sousa
- Laboratory of Immunoendocrinology, School of Pharmaceutical Sciences, Department of Clinical and Toxicological Analyses, University of São Paulo, São Paulo, Brazil
| | - Stephen Fernandes Rodrigues
- Laboratory of Vascular Nanopharmacology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
| | - Eliana Hiromi Akamine
- Laboratory of Vascular Biology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
| | - Anderson Sá-Nunes
- Laboratory of Experimental Immunology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
| | - Joilson O. Martins
- Laboratory of Immunoendocrinology, School of Pharmaceutical Sciences, Department of Clinical and Toxicological Analyses, University of São Paulo, São Paulo, Brazil
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Hagiwara K, Watanabe A, Harimoto N, Araki K, Yokobori T, Muranushi R, Hoshino K, Ishii N, Tsukagoshi M, Shirabe K. Liver regeneration after hepatectomy is significantly suppressed in a muscular atrophy mouse model. JOURNAL OF HEPATO-BILIARY-PANCREATIC SCIENCES 2024; 31:152-161. [PMID: 37909250 DOI: 10.1002/jhbp.1386] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/03/2022] [Revised: 08/31/2023] [Accepted: 09/07/2023] [Indexed: 11/02/2023]
Abstract
BACKGROUND Sarcopenia is a syndrome characterized by progressive and generalized loss of skeletal muscle mass and strength. As reported in previous studies, the loss of skeletal muscle mass is associated with poor liver regeneration after hepatectomy. It is considered important to clarify the effect of sarcopenia on liver regeneration; however, there are no reports about model animals for sarcopenia. We focused on the peroxisome proliferator-activated receptor-gamma coactivator-1alpha (PGC-1α) transgenic mice that overexpressed PGC-1α, specifically for skeletal muscle, and showed significant atrophy of type 2B fiber-rich muscles like sarcopenia. METHODS We performed 70% hepatectomy using PGC-1α transgenic mice and examined the liver regeneration rate and the effects of branched-chain amino acids (BCAA) after hepatectomy. RESULTS Liver regeneration after 70% hepatectomy was significantly suppressed in the PGC-1α transgenic mice. In addition, a decrease in the blood BCAA concentration and a decrease in the liver glycogen content after 70% hepatectomy were observed in the PGC-1α transgenic mice. By administering BCAA before and after surgery, it was clarified that a significant increase in the blood BCAA concentration was observed and the liver regeneration rate was improved in the PGC-1α transgenic mice. CONCLUSIONS BCAA administration may improve the suppression of liver regeneration in patients with sarcopenia.
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Affiliation(s)
- Kei Hagiwara
- Division of Hepatobiliary and Pancreatic Surgery, Department of General Surgical Science, Gunma University Graduate School of Medicine, Maebashi, Gunma, Japan
| | - Akira Watanabe
- Division of Hepatobiliary and Pancreatic Surgery, Department of General Surgical Science, Gunma University Graduate School of Medicine, Maebashi, Gunma, Japan
| | - Norifumi Harimoto
- Division of Hepatobiliary and Pancreatic Surgery, Department of General Surgical Science, Gunma University Graduate School of Medicine, Maebashi, Gunma, Japan
| | - Kenichiro Araki
- Division of Hepatobiliary and Pancreatic Surgery, Department of General Surgical Science, Gunma University Graduate School of Medicine, Maebashi, Gunma, Japan
| | - Takehiko Yokobori
- Division of Integrated Oncology Research, Gunma University Initiative for Advanced Research (GIAR), Maebashi, Gunma, Japan
| | - Ryo Muranushi
- Division of Hepatobiliary and Pancreatic Surgery, Department of General Surgical Science, Gunma University Graduate School of Medicine, Maebashi, Gunma, Japan
| | - Kouki Hoshino
- Division of Hepatobiliary and Pancreatic Surgery, Department of General Surgical Science, Gunma University Graduate School of Medicine, Maebashi, Gunma, Japan
| | - Norihiro Ishii
- Division of Hepatobiliary and Pancreatic Surgery, Department of General Surgical Science, Gunma University Graduate School of Medicine, Maebashi, Gunma, Japan
| | - Mariko Tsukagoshi
- Division of Hepatobiliary and Pancreatic Surgery, Department of General Surgical Science, Gunma University Graduate School of Medicine, Maebashi, Gunma, Japan
| | - Ken Shirabe
- Division of Hepatobiliary and Pancreatic Surgery, Department of General Surgical Science, Gunma University Graduate School of Medicine, Maebashi, Gunma, Japan
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Perez-Villalba A, Sirerol-Piquer MS, Soriano-Cantón R, Folgado V, Pérez-Cañamás A, Kirstein M, Fariñas I, Pérez-Sánchez F. Dopaminergic neuron loss in mice due to increased levels of wild-type human α-Synuclein only takes place under conditions of accelerated aging. Sci Rep 2024; 14:2490. [PMID: 38291230 PMCID: PMC10828501 DOI: 10.1038/s41598-024-53093-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2023] [Accepted: 01/27/2024] [Indexed: 02/01/2024] Open
Abstract
Understanding the intricate pathogenic mechanisms behind Parkinson's disease (PD) and its multifactorial nature presents a significant challenge in disease modeling. To address this, we explore genetic models that better capture the disease's complexity. Given that aging is the primary risk factor for PD, this study investigates the impact of aging in conjunction with overexpression of wild-type human α-synuclein (α-Syn) in the dopaminergic system. This is achieved by introducing a novel transgenic mouse strain overexpressing α-Syn under the TH-promoter within the senescence-accelerated SAMP8 (P8) genetic background. Behavioral assessments, conducted at both 10 and 16 months of age, unveil motor impairments exclusive to P8 α-SynTg mice, a phenomenon conspicuously absent in α-SynTg mice. These findings suggest a synergistic interplay between heightened α-Syn levels and the aging process, resulting in motor deficits. These motor disturbances correlate with reduced dopamine (DA) levels, increased DA turnover, synaptic terminal loss, and notably, the depletion of dopaminergic neurons in the substantia nigra and noradrenergic neurons in the locus coeruleus. Furthermore, P8 α-SynTg mice exhibit alterations in gut transit time, mirroring early PD symptoms. In summary, P8 α-SynTg mice effectively replicate parkinsonian phenotypes by combining α-Syn transgene expression with accelerated aging. This model offers valuable insights into the understanding of PD and serves as a valuable platform for further research.
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Affiliation(s)
- Ana Perez-Villalba
- Departamento de Biología Celular, Biología Funcional y Antropología Física, Universitat de València, Valencia, Spain
- Instituto de Biotecnología y Biomedicina (BioTecMed), Universitat de València, Valencia, Spain
- Centro de Investigación Biomédica en Red de Enfermedades Neurodegenerativas (CIBERNED), Madrid, Spain
- Laboratory of Animal Behavior Phenotype (L.A.B.P.), Department of Neuropsychology, Faculty of Psychology, Catholic University of Valencia, Valencia, Spain
| | - María Salomé Sirerol-Piquer
- Departamento de Biología Celular, Biología Funcional y Antropología Física, Universitat de València, Valencia, Spain
- Instituto de Biotecnología y Biomedicina (BioTecMed), Universitat de València, Valencia, Spain
- Centro de Investigación Biomédica en Red de Enfermedades Neurodegenerativas (CIBERNED), Madrid, Spain
| | - Raúl Soriano-Cantón
- Departamento de Biología Celular, Biología Funcional y Antropología Física, Universitat de València, Valencia, Spain
- Instituto de Biotecnología y Biomedicina (BioTecMed), Universitat de València, Valencia, Spain
| | - Virginia Folgado
- Departamento de Biología Celular, Biología Funcional y Antropología Física, Universitat de València, Valencia, Spain
- Instituto de Biotecnología y Biomedicina (BioTecMed), Universitat de València, Valencia, Spain
| | - Azucena Pérez-Cañamás
- Departamento de Biología Celular, Biología Funcional y Antropología Física, Universitat de València, Valencia, Spain
- Instituto de Biotecnología y Biomedicina (BioTecMed), Universitat de València, Valencia, Spain
- Centro de Investigación Biomédica en Red de Enfermedades Neurodegenerativas (CIBERNED), Madrid, Spain
| | - Martina Kirstein
- Departamento de Biología Celular, Biología Funcional y Antropología Física, Universitat de València, Valencia, Spain
- Instituto de Biotecnología y Biomedicina (BioTecMed), Universitat de València, Valencia, Spain
| | - Isabel Fariñas
- Departamento de Biología Celular, Biología Funcional y Antropología Física, Universitat de València, Valencia, Spain.
- Instituto de Biotecnología y Biomedicina (BioTecMed), Universitat de València, Valencia, Spain.
- Centro de Investigación Biomédica en Red de Enfermedades Neurodegenerativas (CIBERNED), Madrid, Spain.
| | - Francisco Pérez-Sánchez
- Departamento de Biología Celular, Biología Funcional y Antropología Física, Universitat de València, Valencia, Spain.
- Instituto de Biotecnología y Biomedicina (BioTecMed), Universitat de València, Valencia, Spain.
- Centro de Investigación Biomédica en Red de Enfermedades Neurodegenerativas (CIBERNED), Madrid, Spain.
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Yılmaz D, Mathavan N, Wehrle E, Kuhn GA, Müller R. Mouse models of accelerated aging in musculoskeletal research for assessing frailty, sarcopenia, and osteoporosis - A review. Ageing Res Rev 2024; 93:102118. [PMID: 37935249 DOI: 10.1016/j.arr.2023.102118] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2023] [Revised: 10/01/2023] [Accepted: 11/03/2023] [Indexed: 11/09/2023]
Abstract
Musculoskeletal aging encompasses the decline in bone and muscle function, leading to conditions such as frailty, osteoporosis, and sarcopenia. Unraveling the underlying molecular mechanisms and developing effective treatments are crucial for improving the quality of life for those affected. In this context, accelerated aging models offer valuable insights into these conditions by displaying the hallmarks of human aging. Herein, this review focuses on relevant mouse models of musculoskeletal aging with particular emphasis on frailty, osteoporosis, and sarcopenia. Among the discussed models, PolgA mice in particular exhibit hallmarks of musculoskeletal aging, presenting early-onset frailty, as well as reduced bone and muscle mass that closely resemble human musculoskeletal aging. Ultimately, findings from these models hold promise for advancing interventions targeted at age-related musculoskeletal disorders, effectively addressing the challenges posed by musculoskeletal aging and associated conditions in humans.
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Affiliation(s)
- Dilara Yılmaz
- Institute for Biomechanics, ETH Zurich, Zurich, Switzerland
| | | | - Esther Wehrle
- Institute for Biomechanics, ETH Zurich, Zurich, Switzerland; AO Research Institute Davos, Davos Platz, Switzerland
| | - Gisela A Kuhn
- Institute for Biomechanics, ETH Zurich, Zurich, Switzerland
| | - Ralph Müller
- Institute for Biomechanics, ETH Zurich, Zurich, Switzerland.
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8
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Shinozaki Y, Ikarashi N, Tabata K, Miyazawa A, Kon R, Sakai H, Hosoe T. Expression analysis of genes important for maintaining skin function in a senescence-accelerated mouse prone model. Geriatr Gerontol Int 2023; 23:951-957. [PMID: 37908183 DOI: 10.1111/ggi.14718] [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: 06/30/2023] [Revised: 09/07/2023] [Accepted: 10/12/2023] [Indexed: 11/02/2023]
Abstract
AIM Senescence-accelerated mouse prone (SAMP) mice can reproduce the same conditions as normal aging mice in a short period. Although SAMP mice have been widely used in aging research, research on skin function in SAMP mice is lacking. In this study, to investigate the skin function of SAMP mice, we analyzed the expression of genes important for maintaining skin function. METHODS Eight-month-old SAMP mice and senescence-accelerated mouse resistant (SAMR) mice with normal aging were used. The expression levels of various functional genes in the skin were analyzed. RESULTS The dermal water content of SAMP mice was significantly lower than that of SAMR mice, indicating dry skin. The mRNA expression levels of elastin (Ela), filaggrin (Flg), loricrin (Lor), collagen type I alpha 1 chain (Col1a1) and Col1a2 in the skin of SAMP mice were all significantly decreased compared with those of SAMR mice. Hyaluronan-degrading enzyme (Hyal1) expression levels in SAMP mice were similar to those in SAMR mice, but hyaluronan synthase (Has2) levels were significantly decreased. In addition, the expression level of aquaporin-3 in the skin of SAMP mice was significantly decreased at both the mRNA and protein levels. CONCLUSIONS In the skin of SAMP mice, the expression levels of various skin function-regulating genes were decreased, and this phenomenon might cause skin dryness. The SAMP mouse could be a tool for analyzing skin aging. Geriatr Gerontol Int 2023; 23: 951-957.
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Affiliation(s)
- Yui Shinozaki
- Department of Biomolecular Pharmacology, Hoshi University, Tokyo, Japan
| | - Nobutomo Ikarashi
- Department of Biomolecular Pharmacology, Hoshi University, Tokyo, Japan
| | - Keito Tabata
- Department of Biomolecular Pharmacology, Hoshi University, Tokyo, Japan
| | - Ayuka Miyazawa
- Department of Biomolecular Pharmacology, Hoshi University, Tokyo, Japan
| | - Risako Kon
- Department of Biomolecular Pharmacology, Hoshi University, Tokyo, Japan
| | - Hiroyasu Sakai
- Department of Biomolecular Pharmacology, Hoshi University, Tokyo, Japan
| | - Tomoo Hosoe
- Department of Biomolecular Pharmacology, Hoshi University, Tokyo, Japan
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9
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Xu Z, Man SS, Gong BY, Li ZD, Zhou HF, Peng YF, Zhao SW, Hou YL, Wang L, Bian YH. Bazi Bushen maintains intestinal homeostasis through inhibiting TLR4/NFκB signaling pathway and regulating gut microbiota in SAMP6 mice. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2023; 103:7273-7283. [PMID: 37450639 DOI: 10.1002/jsfa.12812] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/11/2023] [Revised: 06/23/2023] [Accepted: 07/14/2023] [Indexed: 07/18/2023]
Abstract
BACKGROUND Bazi Bushen is a Chinese patented medicine with multiple health benefits and geroprotective effects, yet, no research has explored its effects on intestinal homeostasis. In this study, we aimed to investigate the effect of Bazi Bushen on intestinal inflammation and the potential mechanism of gut microbiota dysbiosis and intestinal homeostasis in senescence-accelerated mouse prone 6 (SAMP6). The hematoxylin and eosin (H&E) staining and immunohistochemistry were performed to assess the function of the intestinal mucosal barrier. The enzyme-linked immunosorbent assay (ELISA) and Western blotting were used to determine the level of intestinal inflammation. The aging-related β-galactosidase (SA-β-gal) staining and Western blotting were used to measure the extent of intestinal aging. The 16S ribosomal RNA (16S rRNA) was performed to analyze the change in gut microbiota composition and distribution. RESULTS Bazi Bushen exerted remarkable protective effects in SAMP6, showing a regulated mucosal barrier and increased barrier integrity. It also suppressed intestinal inflammation through down-regulating pro-inflammatory cytokines (IL-6, IL-1β, and TNF-α) and inhibiting TLR4/NFκB signaling pathway (MYD88, p-p65, and TLR4). Bazi Bushen improved intestinal aging by reducing the area of SA-β-gal-positive cells and the expression of senescence markers p16, p21, and p53. In addition, Bazi Bushen effectively rebuilt the gut microbiota ecosystem by decreasing the abundance of Bacteroides and Klebsiella, whiles increasing the ratio of Lactobacillus/Bacteroides and the abundance of Akkermansia. CONCLUSION Our study shows that Bazi Bushen could serve as a potential therapy for maintaining intestinal homeostasis. © 2023 The Authors. Journal of The Science of Food and Agriculture published by John Wiley & Sons Ltd on behalf of Society of Chemical Industry.
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Affiliation(s)
- Zhe Xu
- School of Integrative Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Shan-Shan Man
- Pharmaceutical Department, Tianjin Second People's Hospital, Tianjin, China
| | - Bo-Yang Gong
- School of Integrative Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Zhao-Dong Li
- School of Integrative Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Hui-Fang Zhou
- School of Integrative Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Yan-Fei Peng
- School of Integrative Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Shu-Wu Zhao
- School of Integrative Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Yun-Long Hou
- National Key Laboratory of Luobing Research and Innovative Chinese Medicine, Hebei, China
| | - Li Wang
- Pharmaceutical Department, Tianjin Second People's Hospital, Tianjin, China
| | - Yu-Hong Bian
- School of Integrative Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, China
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10
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Bernstein LR, Mackenzie ACL, Durkin K, Kraemer DC, Chaffin CL, Merchenthaler I. Maternal age and gonadotrophin elevation cooperatively decrease viable ovulated oocytes and increase ootoxicity, chromosome-, and spindle-misalignments: '2-Hit' and 'FSH-OoToxicity' mechanisms as new reproductive aging hypotheses. Mol Hum Reprod 2023; 29:gaad030. [PMID: 37643633 DOI: 10.1093/molehr/gaad030] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2023] [Revised: 07/18/2023] [Indexed: 08/31/2023] Open
Abstract
While there is consensus that advanced maternal age (AMA) reduces oocyte yield and quality, the notion that high FSH reduces oocyte quality and causes aneuploidy remains controversial, perhaps due to difficulties controlling the confounding variables of age and FSH levels. Here, contributions of age and gonadotrophin elevation were separately controlled using a mouse model of human female reproductive aging. Ovulated oocytes were collected from young and midlife mice after 0-, 2.6-, or 17-day treatment with the FSH analog equine chorionic gonadotrophin (eCG), to model both exogenous FSH elevation within a single treatment cycle (as in controlled ovarian stimulation (COS)), and chronic endogenous FSH elevation during multiple cycles (as in diminished ovarian reserve). After 17-day eCG, fewer total oocytes/mouse are ovulated in midlife than young mice, and a precipitous decline in viable oocytes/mouse is observed in midlife but not young mice throughout eCG treatment. eCG is potently ootoxic to ovulatory oocytes and strongly induces chromosome- and spindle-misalignments within 2.6 days of eCG in midlife, but only after 17 days in young mice. These data indicate that AMA increases susceptibility to multiple adverse effects of elevated FSH activity in ovulated oocytes, including declines in total and viable oocytes/mouse, and induction of ootoxicity and aneuploidy. Two hypotheses are proposed for underlying causes of infertility in women. The FSH OOToxicity Hypothesis ('FOOT Hypothesis') posits that high FSH is ootoxic to ovulatory oocytes and that FSH ootoxicity is a root cause of low pregnancy success rates in naturally cycling women with high FSH and IUI patients undergoing COS. The '2-Hit Hypothesis' posits that AMA increases susceptibility to FSH-induced ootoxicity and aneuploidy.
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Affiliation(s)
- Lori R Bernstein
- Pregmama LLC, Gaithersburg, MD, USA
- Department of Cell Biology and Genetics, Texas A & M School of Medicine, College Station, TX, USA
- Department of Epidemiology and Public Health, University of Maryland School of Medicine, Baltimore, MD, USA
- Department of Veterinary Integrative Biosciences, Texas A&M School of Veterinary Medicine, College Station, TX, USA
| | - Amelia C L Mackenzie
- Department of Epidemiology and Public Health, University of Maryland School of Medicine, Baltimore, MD, USA
| | - Keith Durkin
- Department of Veterinary Integrative Biosciences, Texas A&M School of Veterinary Medicine, College Station, TX, USA
| | - Duane C Kraemer
- Department of Veterinary Physiology and Pharmacology, Texas A & M College of Veterinary Medicine, College Station, TX, USA
| | - Charles L Chaffin
- Department of Obstetrics, Gynecology, and Reproductive Sciences, University of Maryland School of Medicine, Baltimore, MD, USA
| | - Istvan Merchenthaler
- Department of Epidemiology and Public Health, University of Maryland School of Medicine, Baltimore, MD, USA
- Department of Anatomy and Neurobiology, University of Maryland School of Medicine, Baltimore, MD, USA
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11
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Fujiwara M, Ferdousi F, Isoda H. Investigation into Molecular Brain Aging in Senescence-Accelerated Mouse (SAM) Model Employing Whole Transcriptomic Analysis in Search of Potential Molecular Targets for Therapeutic Interventions. Int J Mol Sci 2023; 24:13867. [PMID: 37762170 PMCID: PMC10530366 DOI: 10.3390/ijms241813867] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2023] [Revised: 09/06/2023] [Accepted: 09/07/2023] [Indexed: 09/29/2023] Open
Abstract
With the progression of an aging society, cognitive aging has emerged as a pressing concern necessitating attention. The senescence-accelerated mouse-prone 8 (SAMP8) model has proven instrumental in investigating the early stages of cognitive aging. Through an extensive examination of molecular changes in the brain cortex, utilizing integrated whole-genome transcriptomics, our principal aim was to uncover potential molecular targets with therapeutic applications and relevance to drug screening. Our investigation encompassed four distinct conditions, comparing the same strain at different time points (1 year vs. 16 weeks) and the same time point across different strains (SAMP8 vs. SAMR1), namely: physiological aging, accelerated aging, early events in accelerated aging, and late events in accelerated aging. Focusing on key functional alterations associated with aging in the brain, including neurogenesis, synapse dynamics, neurometabolism, and neuroinflammation, we identified candidate genes linked to these processes. Furthermore, employing protein-protein interaction (PPI) analysis, we identified pivotal hub genes involved in interactions within these functional domains. Additionally, gene-set perturbation analysis allowed us to uncover potential upstream genes or transcription factors that exhibited activation or inhibition across the four conditions. In summary, our comprehensive analysis of the SAMP8 mouse brain through whole-genome transcriptomics not only deepens our understanding of age-related changes but also lays the groundwork for a predictive model to facilitate drug screening for cognitive aging.
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Affiliation(s)
- Michitaka Fujiwara
- Graduate School of Environmental Science Program, University of Tsukuba, 1-1-1 Tennodai, Tsukuba 305-8577, Japan
- Open Innovation Laboratory for Food and Medicinal Resource Engineering, National Institute of Advanced Industrial Science and Technology (AIST), 1-1-1 Tennodai, Tsukuba 305-8572, Japan
| | - Farhana Ferdousi
- Faculty of Life and Environmental Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba 305-8572, Japan
- Alliance for Research on the Mediterranean and North Africa (ARENA), University of Tsukuba, 1-1-1 Tennodai, Tsukuba 305-8572, Japan
| | - Hiroko Isoda
- Open Innovation Laboratory for Food and Medicinal Resource Engineering, National Institute of Advanced Industrial Science and Technology (AIST), 1-1-1 Tennodai, Tsukuba 305-8572, Japan
- Faculty of Life and Environmental Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba 305-8572, Japan
- Alliance for Research on the Mediterranean and North Africa (ARENA), University of Tsukuba, 1-1-1 Tennodai, Tsukuba 305-8572, Japan
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12
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Xu Z, Gong B, Li Z, Wang Y, Zhao Z, Xie L, Peng Y, Zhao S, Zhou H, Bian Y. Bazi Bushen alleviates skin senescence by orchestrating skin homeostasis in SAMP6 mice. J Cell Mol Med 2023; 27:2651-2660. [PMID: 37614114 PMCID: PMC10494291 DOI: 10.1111/jcmm.17833] [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: 02/16/2023] [Revised: 06/12/2023] [Accepted: 06/24/2023] [Indexed: 08/25/2023] Open
Abstract
Bazi Bushen, a Chinese-patented drug with the function of relieving fatigue and delaying ageing, has been proven effective for extenuating skin senescence. To investigate the potential mechanism, senescence-accelerated mouse prone 6 (SAMP6) was intragastrically administered with Bazi Bushen for 9 weeks to induce skin homeostasis. Skin homeostasis is important in mitigating skin senescence, and it is related to many factors such as oxidative stress, SASP, apoptosis, autophagy and stem cell. In our study, skin damage in SAMP6 mice was observed using HE, Masson and SA-β-gal staining. The content of hydroxyproline and the activities of SOD, MDA, GSH-PX and T-AOC in the skin were measured using commercial assay kits. The level of SASP factors (IL-6, IL-1β, TNF-α, MMP2 and MMP9) in skin were measured using ELISA kits. The protein expressions of p16, p21, p53, Bax, Bcl-2, Cleaved caspase-3, LC3, p62, Beclin1, OCT4, SOX2 and NANOG were measured by western blotting. The expression of ITGA6 and COL17A1 was measured by immunofluorescence staining and western blotting. Our findings demonstrated that Bazi Bushen alleviated skin senescence by orchestrating skin homeostasis, reducing the level of oxidative stress and the expression of SASP, regulating the balance of apoptosis and autophagy and enhancing the protein expressions of ITGA6 and COL17A1 to improve skin structure in SAMP6 mice. This study indicated that Bazi Bushen could serve as a potential therapy for alleviating skin senescence.
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Affiliation(s)
- Zhe Xu
- School of Integrative MedicineTianjin University of Traditional Chinese MedicineTianjinChina
| | - Boyang Gong
- School of Integrative MedicineTianjin University of Traditional Chinese MedicineTianjinChina
| | - Zhaodong Li
- School of Integrative MedicineTianjin University of Traditional Chinese MedicineTianjinChina
| | - Ying Wang
- School of Integrative MedicineTianjin University of Traditional Chinese MedicineTianjinChina
| | - Zeyu Zhao
- School of Integrative MedicineTianjin University of Traditional Chinese MedicineTianjinChina
| | - Lulu Xie
- School of MedicineNankai UniversityTianjinChina
| | - Yanfei Peng
- School of Integrative MedicineTianjin University of Traditional Chinese MedicineTianjinChina
| | - Shuwu Zhao
- School of Integrative MedicineTianjin University of Traditional Chinese MedicineTianjinChina
| | - Huifang Zhou
- School of Integrative MedicineTianjin University of Traditional Chinese MedicineTianjinChina
| | - Yuhong Bian
- School of Integrative MedicineTianjin University of Traditional Chinese MedicineTianjinChina
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13
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Polonio AM, Medrano M, Chico-Sordo L, Córdova-Oriz I, Cozzolino M, Montans J, Herraiz S, Seli E, Pellicer A, García-Velasco JA, Varela E. Impaired telomere pathway and fertility in Senescence-Accelerated Mice Prone 8 females with reproductive senescence. Aging (Albany NY) 2023; 15:4600-4624. [PMID: 37338562 DOI: 10.18632/aging.204731] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2022] [Accepted: 05/04/2023] [Indexed: 06/21/2023]
Abstract
Ovarian aging is the main cause of infertility and telomere attrition is common to both aging and fertility disorders. Senescence-Accelerated Mouse Prone 8 (SAMP8) model has shortened lifespan and premature infertility, reflecting signs of reproductive senescence described in middle-aged women. Thus, our objective was to study SAMP8 female fertility and the telomere pathway at the point of reproductive senescence. The lifespan of SAMP8 and control mice was monitored. Telomere length (TL) was measured by in situ hybridization in blood and ovary. Telomerase activity (TA) was analyzed by telomere-repeat amplification protocol, and telomerase expression, by real-time quantitative PCR in ovaries from 7-month-old SAMP8 and controls. Ovarian follicles at different stages of maturation were evaluated by immunohistochemistry. Reproductive outcomes were analyzed after ovarian stimulation. Unpaired t-test or Mann-Whitney test were used to calculate p-values, depending on the variable distribution. Long-rank test was used to compare survival curves and Fisher's exact test was used in contingency tables. Median lifespan of SAMP8 females was reduced compared to SAMP8 males (p = 0.0138) and control females (p < 0.0001). In blood, 7-month-old SAMP8 females presented lower mean TL compared to age-matched controls (p = 0.041). Accordingly, the accumulation of short telomeres was higher in 7-month-old SAMP8 females (p = 0.0202). Ovarian TA was lower in 7-month-old SAMP8 females compared to controls. Similarly, telomerase expression was lower in the ovaries of 7-month-old SAMP8 females (p = 0.04). Globally, mean TL in ovaries and granulosa cells (GCs) were similar. However, the percentage of long telomeres in ovaries (p = 0.004) and GCs (p = 0.004) from 7-month-old SAMP8 females was lower compared to controls. In early-antral and antral follicles, mean TL of SAMP8 GCs was lower than in age-matched controls (p = 0.0156 for early-antral and p = 0.0037 for antral follicles). Middle-aged SAMP8 showed similar numbers of follicles than controls, although recovered oocytes after ovarian stimulation were lower (p = 0.0068). Fertilization rate in oocytes from SAMP8 was not impaired, but SAMP8 mice produced significantly more morphologically abnormal embryos than controls (27.03% in SAMP8 vs. 1.22% in controls; p < 0.001). Our findings suggest telomere dysfunction in SAMP8 females, at the time of reproductive senescence.
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Affiliation(s)
- Alba M Polonio
- IVI Foundation, The Health Research Institute La Fe (IIS La Fe), Valencia, Spain
| | - Marta Medrano
- IVI Foundation, The Health Research Institute La Fe (IIS La Fe), Valencia, Spain
| | - Lucía Chico-Sordo
- IVI Foundation, The Health Research Institute La Fe (IIS La Fe), Valencia, Spain
| | - Isabel Córdova-Oriz
- IVI Foundation, The Health Research Institute La Fe (IIS La Fe), Valencia, Spain
| | | | | | - Sonia Herraiz
- IVI Foundation, The Health Research Institute La Fe (IIS La Fe), Valencia, Spain
| | - Emre Seli
- IVIRMA New Jersey, Basking Ridge, NJ 07920, USA
- Department of Obstetrics, Gynecology and Reproductive Sciences, Yale School of Medicine, New Heaven, CT 06510, USA
| | - Antonio Pellicer
- IVIRMA Rome, Rome, Italy
- Department of Pediatrics, Obstetrics and Gynecology, University of Valencia, Valencia, Spain
| | - Juan A García-Velasco
- IVI Foundation, The Health Research Institute La Fe (IIS La Fe), Valencia, Spain
- IVIRMA Madrid, Madrid, Spain
- Department of Obstetrics and Gynecology, Rey Juan Carlos University, Madrid, Spain
| | - Elisa Varela
- IVI Foundation, The Health Research Institute La Fe (IIS La Fe), Valencia, Spain
- Department of Obstetrics and Gynecology, Rey Juan Carlos University, Madrid, Spain
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14
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Lyu W, Kousaka M, Jia H, Kato H. Effects of Turmeric Extract on Age-Related Skeletal Muscle Atrophy in Senescence-Accelerated Mice. Life (Basel) 2023; 13:life13040941. [PMID: 37109470 PMCID: PMC10141758 DOI: 10.3390/life13040941] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2023] [Revised: 03/14/2023] [Accepted: 03/31/2023] [Indexed: 04/07/2023] Open
Abstract
Muscle atrophy is one of the main causes of sarcopenia—the age-related loss of skeletal muscle. In this study, we investigated the effect of turmeric (Curcuma longa) extract (TE) supplementation on age-related muscle atrophy in a senescence-accelerated mouse model and explored the underlying mechanisms. Twenty-six-week-old male, senescence-accelerated mouse resistant (SAMR) mice received the AIN-93G basal diet, while twenty-six-week-old male, senescence-accelerated mouse prone 8 (SAMP8) mice received the AIN-93G basal diet or a 2% TE powder-supplemented diet for ten weeks. Our findings revealed that TE supplementation showed certain effects on ameliorating the decrease in body weight, tibialis anterior weight, and mesenteric fat tissue weight in SAMP8 mice. TE improved gene expression in the glucocorticoid receptor-FoxO signaling pathway in skeletal muscle, including redd1, klf15, foxo1, murf1, and mafbx. Furthermore, TE might have the certain potential on improving the dynamic balance between anabolic and catabolic processes by inhibiting the binding of glucocorticoid receptor or FoxO1 to the glucocorticoid response element or FoxO-binding element in the MuRF1 promoter in skeletal muscle, thereby promoting muscle mass and strength, and preventing muscle atrophy and sarcopenia prevention. Moreover, TE may have reduced mitochondrial damage and maintained cell growth and division by downregulating the mRNA expression of the genes mfn2 and tsc2. Thus, the results indicated TE’s potential for preventing age-related muscle atrophy and sarcopenia.
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Affiliation(s)
- Weida Lyu
- Health Nutrition, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Hongo 7-3-1, Bunkyo-ku, Tokyo 113-0032, Japan
- Department of Geriatric Medicine, Graduate School of Medicine, The University of Tokyo, Hongo 7-3-1, Bunkyo-ku, Tokyo 113-0032, Japan
| | - Marika Kousaka
- Health Nutrition, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Hongo 7-3-1, Bunkyo-ku, Tokyo 113-0032, Japan
| | - Huijuan Jia
- Health Nutrition, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Hongo 7-3-1, Bunkyo-ku, Tokyo 113-0032, Japan
| | - Hisanori Kato
- Health Nutrition, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Hongo 7-3-1, Bunkyo-ku, Tokyo 113-0032, Japan
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15
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Mankhong S, Kim S, Moon S, Lee JS, Cho EJ, Kwak HB, Park DH, Ryu JK, Kang JH. Melatonin and Exercise Counteract Sarcopenic Obesity through Preservation of Satellite Cell Function. Int J Mol Sci 2023; 24:ijms24076097. [PMID: 37047070 PMCID: PMC10094434 DOI: 10.3390/ijms24076097] [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: 02/06/2023] [Revised: 03/22/2023] [Accepted: 03/22/2023] [Indexed: 04/14/2023] Open
Abstract
Sarcopenic obesity (SO) is characterized by atrophic skeletal muscle impairment (sarcopenia) and obesity, which is associated with adverse outcomes of morbidity and mortality in elderly people. We investigated the effects of melatonin and exercise training on SO in 32-week-old senescence-accelerated mouse-prone-8 (SAMP8) mice fed a normal diet or a high-fat diet for 16 weeks. Melatonin, exercise, or melatonin and exercise for 8 weeks displayed reductions in the SO-induced impairment of skeletal muscle function and atrophy. Specifically, a decrease in mitochondrial calcium retention capacity in skeletal muscles observed in the HFD-con group was attenuated in melatonin and/or exercise intervention groups. More importantly, HFD-con mice displayed a lower number of Pax7+ satellite cells (SCs) and higher expression of p16ink than P8ND mice, which were attenuated by melatonin and/or exercise interventions. The cellular senescence in SC-derived primary myoblasts from HFD-con mice was significantly attenuated in myoblasts from the melatonin and/or exercise groups, which was reproduced in a senescence model of H2O2-treated C2C12 myoblasts. Our results suggest that melatonin and exercise training attenuate SO-induced skeletal muscle dysfunction, at least in part, through preserving the SC pool by inhibiting cellular senescence and attenuating mitochondrial dysfunction.
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Affiliation(s)
- Sakulrat Mankhong
- Department of Pharmacology, College of Medicine, Inha University, Incheon 22212, Republic of Korea
- Research Center for Controlling Intercellular Communication, College of Medicine, Inha University, Incheon 22212, Republic of Korea
- Program in Biomedical Science and Engineering, Inha University, Incheon 22212, Republic of Korea
| | - Sujin Kim
- Department of Pharmacology, College of Medicine, Inha University, Incheon 22212, Republic of Korea
- Research Center for Controlling Intercellular Communication, College of Medicine, Inha University, Incheon 22212, Republic of Korea
| | - Sohee Moon
- Department of Pharmacology, College of Medicine, Inha University, Incheon 22212, Republic of Korea
- Research Center for Controlling Intercellular Communication, College of Medicine, Inha University, Incheon 22212, Republic of Korea
| | - Jae-Seon Lee
- Research Center for Controlling Intercellular Communication, College of Medicine, Inha University, Incheon 22212, Republic of Korea
- Program in Biomedical Science and Engineering, Inha University, Incheon 22212, Republic of Korea
- Department of Molecular Medicine, Inha University, Incheon 22212, Republic of Korea
| | - Eun-Jeong Cho
- Program in Biomedical Science and Engineering, Inha University, Incheon 22212, Republic of Korea
- Department of Kinesiology, Inha University, Incheon 22212, Republic of Korea
| | - Hyo-Bum Kwak
- Program in Biomedical Science and Engineering, Inha University, Incheon 22212, Republic of Korea
- Department of Kinesiology, Inha University, Incheon 22212, Republic of Korea
| | - Dong-Ho Park
- Program in Biomedical Science and Engineering, Inha University, Incheon 22212, Republic of Korea
- Department of Kinesiology, Inha University, Incheon 22212, Republic of Korea
| | - Ji-Kan Ryu
- Research Center for Controlling Intercellular Communication, College of Medicine, Inha University, Incheon 22212, Republic of Korea
- Program in Biomedical Science and Engineering, Inha University, Incheon 22212, Republic of Korea
- Department of Urology, College of Medicine, Inha University, Incheon 22212, Republic of Korea
| | - Ju-Hee Kang
- Department of Pharmacology, College of Medicine, Inha University, Incheon 22212, Republic of Korea
- Research Center for Controlling Intercellular Communication, College of Medicine, Inha University, Incheon 22212, Republic of Korea
- Program in Biomedical Science and Engineering, Inha University, Incheon 22212, Republic of Korea
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16
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Li Z, Cai K, Sun Y, Zhou D, Yan J, Luo S, Huang G, Gao Y, Li W. Folic acid protects against age-associated apoptosis and telomere attrition of neural stem cells in senescence-accelerated mouse prone 8. Appl Physiol Nutr Metab 2023; 48:393-402. [PMID: 36809211 DOI: 10.1139/apnm-2022-0111] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/23/2023]
Abstract
Folic acid (FA) could improve cognitive performance and attenuate brain cell injury in the aging brain; FA supplementation is also associated with inhibiting neural stem cell (NSC) apoptosis. However, its role in age-associated telomere attrition remains unclear. We hypothesized that FA supplementation attenuates age-associated apoptosis of NSCs in mice via alleviating telomere attrition in senescence-accelerated mouse prone 8 (SAMP8). In this study, 4-month-old male SAMP8 mice were assigned equal numbers to four different diet groups (n = 15). Fifteen age-matched senescence-accelerated mouse resistant 1 mice, fed with the FA-normal diet, were used as the standard aging control group. After FA treatment for 6 months, all mice were sacrificed. NSC apoptosis, proliferation, oxidative damage, and telomere length were evaluated by immunofluorescence and Q-fluorescent in situ hybridization. The results showed that FA supplementation inhibited age-associated NSC apoptosis and prevented telomere attrition in the cerebral cortex of SAMP8 mice. Importantly, this effect might be explained by the decreased levels of oxidative damage. In conclusion, we demonstrate it may be one of the mechanisms by which FA inhibits age-associated NSC apoptosis by alleviating telomere length shortening.
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Affiliation(s)
- Zhenshu Li
- Department of Nutrition and Food Science, School of Public Health, Tianjin Medical University, Tianjin 300070, China
| | - Ke Cai
- Department of Cardiology, Tianjin Medical University General Hospital, Tianjin 300052, China
| | - Yue Sun
- Department of Nutrition and Food Science, School of Public Health, Tianjin Medical University, Tianjin 300070, China
| | - Dezheng Zhou
- Department of Nutrition and Food Science, School of Public Health, Tianjin Medical University, Tianjin 300070, China
| | - Jing Yan
- Department of Social Medicine and Health Administration, School of Public Health, Tianjin Medical University, Tianjin 300070, China
| | - Suhui Luo
- Tianjin Key Laboratory of Environment, Nutrition and Public Health, Tianjin 300070, China
| | - Guowei Huang
- Department of Nutrition and Food Science, School of Public Health, Tianjin Medical University, Tianjin 300070, China.,Tianjin Key Laboratory of Environment, Nutrition and Public Health, Tianjin 300070, China
| | - Yuxia Gao
- Department of Cardiology, Tianjin Medical University General Hospital, Tianjin 300052, China
| | - Wen Li
- Department of Nutrition and Food Science, School of Public Health, Tianjin Medical University, Tianjin 300070, China.,Tianjin Key Laboratory of Environment, Nutrition and Public Health, Tianjin 300070, China
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17
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Sanada Y, Ikuta Y, Ding C, Shinohara M, Yimiti D, Ishitobi H, Nagira K, Lee M, Akimoto T, Shibata S, Ishikawa M, Nakasa T, Matsubara K, Lotz MK, Adachi N, Miyaki S. Senescence-accelerated mice prone 8 (SAMP8) in male as a spontaneous osteoarthritis model. Arthritis Res Ther 2022; 24:235. [PMID: 36258202 PMCID: PMC9578281 DOI: 10.1186/s13075-022-02916-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2022] [Accepted: 09/24/2022] [Indexed: 11/28/2022] Open
Abstract
BACKGROUND Animal models of spontaneous osteoarthritis (OA) are sparse and not well characterized. The purpose of the present study is to examine OA-related changes and mechanisms in senescence-accelerated mouse prone 8 (SAMP8) that displays a phenotype of accelerated aging. METHODS: Knees of male SAMP8 and SAM-resistant 1 (SAMR1) mice as control from 6 to 33 weeks of age were evaluated by histological grading systems for joint tissues (cartilage, meniscus, synovium, and subchondral bone), and µCT analysis. Gene expression patterns in articular cartilage were analyzed by real-time PCR. Immunohistochemistry was performed for OA-related factors, senescence markers, and apoptosis. RESULTS Starting at 14 weeks of age, SAMP8 exhibited mild OA-like changes such as proteoglycan loss and cartilage fibrillation. From 18 to 33 weeks of age, SAMP8 progressed to partial or full-thickness defects with exposure of subchondral bone on the medial tibia and exhibited synovitis. Histological scoring indicated significantly more severe OA in SAMP8 compared with SAMR1 from 14 weeks [median (interquartile range): SAMR1: 0.89 (0.56-1.81) vs SAMP8: 1.78 (1.35-4.62)] to 33 weeks of age [SAMR1: 1.67 (1.61-1.04) vs SAMP8: 13.03 (12.26-13.57)]. Subchondral bone sclerosis in the medial tibia, bone mineral density (BMD) loss of femoral metaphysis, and meniscus degeneration occurred much earlier than the onset of cartilage degeneration in SAMP8 at 14 weeks of age. CONCLUSIONS SAMP8 are a spontaneous OA model that is useful for investigating the pathogenesis of primary OA and evaluating therapeutic interventions.
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Affiliation(s)
- Yohei Sanada
- Medical Center for Translational and Clinical Research, Hiroshima University Hospital, 1-2-3 Kasumi Minami-ku, Hiroshima, 734-8551, Japan
- Department of Orthopaedic Surgery, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Yasunari Ikuta
- Department of Orthopaedic Surgery, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Chenyang Ding
- Department of Orthopaedic Surgery, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Masahiro Shinohara
- Department of Rehabilitation for the Movement Functions, National Rehabilitation Center for Persons With Disabilities, Saitama, Japan
| | - Dilimulati Yimiti
- Department of Orthopaedic Surgery, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Hiroyuki Ishitobi
- Medical Center for Translational and Clinical Research, Hiroshima University Hospital, 1-2-3 Kasumi Minami-ku, Hiroshima, 734-8551, Japan
- Department of Orthopaedic Surgery, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Keita Nagira
- Department of Orthopaedic Surgery, Tottori University, Tottori, Japan
| | - Minjung Lee
- Faculty of Sport Sciences, Waseda University, Saitama, Japan
| | | | - Sachi Shibata
- Department of Human Life Science Education, Graduate School of Education, Hiroshima University, Higashi-Hiroshima, Japan
| | - Masakazu Ishikawa
- Department of Orthopaedic Surgery, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Tomoyuki Nakasa
- Department of Orthopaedic Surgery, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Kiminori Matsubara
- Department of Human Life Science Education, Graduate School of Education, Hiroshima University, Higashi-Hiroshima, Japan
| | - Martin K Lotz
- Department of Molecular Medicine, Scripps Research, La Jolla, San Diego, CA, USA
| | - Nobuo Adachi
- Department of Orthopaedic Surgery, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Shigeru Miyaki
- Medical Center for Translational and Clinical Research, Hiroshima University Hospital, 1-2-3 Kasumi Minami-ku, Hiroshima, 734-8551, Japan.
- Department of Orthopaedic Surgery, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan.
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18
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Effects of GH on the Aging Process in Several Organs: Mechanisms of Action. Int J Mol Sci 2022; 23:ijms23147848. [PMID: 35887196 PMCID: PMC9318627 DOI: 10.3390/ijms23147848] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2022] [Revised: 06/26/2022] [Accepted: 07/11/2022] [Indexed: 11/17/2022] Open
Abstract
In order to investigate the possible beneficial effects of GH administration on the aging process, 24-month-old rats of both sexes and 10-month-old SAMP8 mice were used. Male rats showed increased fat content and decreased lean body mass together with enhanced vasoconstriction and reduced vasodilation of their aortic rings compared to young adult animals. Chronic GH treatment for 10 weeks increased lean body mass and reduced fat weight together with inducing an enhancement of the vasodilatory response by increasing eNOS and a reduction of the constrictory responses. Old SAMP8 male mice also showed insulin resistance together with a decrease in insulin production by the endocrine pancreas and a reduced expression of differentiation parameters. GH treatment decreased plasma levels and increased pancreatic production of insulin and restored differentiation parameters in these animals. Ovariectomy plus low calcium diet in rabbits induced osteoporosis Titanium implants inserted into these rabbit tibiae showed after one month lesser bone to implant (BIC) surface and bone mineral density (BMD). Local application of GH in the surgical opening was able to increase BIC in the osteoporotic group. The hippocampus of old rats showed a reduction in the number of neurons and also in neurogenesis compared to young ones, together with an increase of caspases and a reduction of Bcl-2. GH treatment was able to enhance significantly only the total number of neurons. In conclusion, GH treatment was able to show beneficial effects in old animals on all the different organs and metabolic functions studied.
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19
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Finger CE, Moreno-Gonzalez I, Gutierrez A, Moruno-Manchon JF, McCullough LD. Age-related immune alterations and cerebrovascular inflammation. Mol Psychiatry 2022; 27:803-818. [PMID: 34711943 PMCID: PMC9046462 DOI: 10.1038/s41380-021-01361-1] [Citation(s) in RCA: 66] [Impact Index Per Article: 33.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/23/2021] [Revised: 09/20/2021] [Accepted: 10/12/2021] [Indexed: 12/11/2022]
Abstract
Aging is associated with chronic systemic inflammation, which contributes to the development of many age-related diseases, including vascular disease. The world's population is aging, leading to an increasing prevalence of both stroke and vascular dementia. The inflammatory response to ischemic stroke is critical to both stroke pathophysiology and recovery. Age is a predictor of poor outcomes after stroke. The immune response to stroke is altered in aged individuals, which contributes to the disparate outcomes between young and aged patients. In this review, we describe the current knowledge of the effects of aging on the immune system and the cerebral vasculature and how these changes alter the immune response to stroke and vascular dementia in animal and human studies. Potential implications of these age-related immune alterations on chronic inflammation in vascular disease outcome are highlighted.
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Affiliation(s)
- Carson E. Finger
- Department of Neurology, McGovern Medical School, UTHealth Science Center at Houston, Houston, TX USA
| | - Ines Moreno-Gonzalez
- Department of Neurology, McGovern Medical School, UTHealth Science Center at Houston, Houston, TX USA ,grid.10215.370000 0001 2298 7828Department of Cell Biology, Genetics and Physiology, Instituto de Investigacion Biomedica de Malaga-IBIMA, Faculty of Sciences, Malaga University, Malaga, Spain ,grid.418264.d0000 0004 1762 4012Biomedical Research Networking Center on Neurodegenerative Diseases (CIBERNED), Malaga, Spain
| | - Antonia Gutierrez
- grid.10215.370000 0001 2298 7828Department of Cell Biology, Genetics and Physiology, Instituto de Investigacion Biomedica de Malaga-IBIMA, Faculty of Sciences, Malaga University, Malaga, Spain ,grid.418264.d0000 0004 1762 4012Biomedical Research Networking Center on Neurodegenerative Diseases (CIBERNED), Malaga, Spain
| | - Jose Felix Moruno-Manchon
- Department of Neurology, McGovern Medical School, UTHealth Science Center at Houston, Houston, TX USA
| | - Louise D. McCullough
- Department of Neurology, McGovern Medical School, UTHealth Science Center at Houston, Houston, TX USA
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20
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Baek KW, Jung YK, Park JS, Kim JS, Hah YS, Kim SJ, Yoo JI. Two Types of Mouse Models for Sarcopenia Research: Senescence Acceleration and Genetic Modification Models. J Bone Metab 2021; 28:179-191. [PMID: 34520651 PMCID: PMC8441530 DOI: 10.11005/jbm.2021.28.3.179] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/08/2021] [Accepted: 06/03/2021] [Indexed: 12/13/2022] Open
Abstract
Sarcopenia leads to loss of skeletal muscle mass, quality, and strength due to aging; it was recently given a disease code (International Classification of Diseases, Tenth Revision, Clinical Modification, M62.84). As a result, in recent years, sarcopenia-related research has increased. In addition, various studies seeking to prevent and treat sarcopenia by identifying the various mechanisms related to the reduction of skeletal muscle properties have been conducted. Previous studies have identified muscle synthesis and breakdown; investigating them has generated evidence for preventing and treating sarcopenia. Mouse models are still the most useful ones for determining mechanisms underlying sarcopenia through correlations and interventions involving specific genes and their phenotypes. Mouse models used to study sarcopenia often induce muscle atrophy by hindlimb unloading, denervation, or immobilization. Though it is less frequently used, the senescence-accelerated mouse can also be useful for sarcopenia research. Herein, we discuss cases where senescence-accelerated and genetically engineered mouse models were used in sarcopenia research and different perspectives to use them.
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Affiliation(s)
- Kyung-Wan Baek
- Department of Physical Education, Gyeongsang National University, Jinju, Korea.,Department of Orthopaedic Surgery, Gyeongsang National University Hospital, Gyeongsang National University, Jinju, Korea
| | - Youn-Kwan Jung
- Biomedical Research Institute, Gyeongsang National University Hospital, Gyeongsang National University, Jinju, Korea
| | - Jin Sung Park
- Department of Orthopaedic Surgery and Institute of Health Sciences, Gyeongsang National University School of Medicine and Gyeongsang National University Hospital, Jinju, Korea
| | - Ji-Seok Kim
- Department of Physical Education, Gyeongsang National University, Jinju, Korea
| | - Young-Sool Hah
- Biomedical Research Institute, Gyeongsang National University Hospital, Gyeongsang National University, Jinju, Korea
| | - So-Jeong Kim
- Department of Convergence Medical Science, Gyeongsang National University, Jinju, Korea
| | - Jun-Il Yoo
- Department of Orthopaedic Surgery, Gyeongsang National University Hospital, Gyeongsang National University, Jinju, Korea
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21
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Malerba HN, Pereira AAR, Pierrobon MF, Abrao GS, Toricelli M, Akamine EH, Buck HS, Viel TA. Combined Neuroprotective Strategies Blocked Neurodegeneration and Improved Brain Function in Senescence-Accelerated Mice. Front Aging Neurosci 2021; 13:681498. [PMID: 34497504 PMCID: PMC8419356 DOI: 10.3389/fnagi.2021.681498] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2021] [Accepted: 07/19/2021] [Indexed: 01/22/2023] Open
Abstract
Increase in the quality of life, combined with drug strategies, has been studied as possibilities for improving memory and delaying the onset of neurodegenerative diseases. A previous study published by the group of the authors has shown that microdose lithium and enriched environment can improve memory in both mice and humans. To elucidate this relationship better, this study aimed to evaluate whether the chronic combination of these two strategies could increase healthy aging in Senescence Accelerated Mouse-Prone 8 (SAMP8). Animals were submitted to either one or both of these strategies until the age of 10 months when they were anesthetized and killed and their hippocampus was extracted. The untreated SAMP-8 group exhibited worse memory and reduced neuronal density with greater neurodegeneration and increased amyloid-β plaque density compared with the control group. Moreover, significant alterations in proteins related to long-term potentiation, such as, synaptophysin and brain-derived neurotrophic factor (BDNF), were observed in this group. The strategies used in the study maintained long-term memory, reduced anxiety, and increased neuroprotection. Both strategies were efficient in reducing neurodegeneration and increasing parameters related to memory maintenance. In many experiments, the combination of the two strategies was more effective in improving healthy aging. This study sheds light on the combination of strategies that choose to improve the quality of life and drugs with low side effects. Moreover, it opens perspectives for a new field of study for healthy aging.
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Affiliation(s)
- Helena Nascimento Malerba
- Graduate Course on Pharmacology, Institute of Biomedical Sciences, Universidade de São Paulo, São Paulo, Brazil.,Laboratory of Neuropharmacology of Aging, School of Arts, Sciences and Humanities, Universidade de São Paulo, São Paulo, Brazil
| | - Arthur Antonio Ruiz Pereira
- Graduate Course on Pharmacology, Institute of Biomedical Sciences, Universidade de São Paulo, São Paulo, Brazil.,Laboratory of Neuropharmacology of Aging, School of Arts, Sciences and Humanities, Universidade de São Paulo, São Paulo, Brazil
| | - Marcela Favoretto Pierrobon
- Laboratory of Neuropharmacology of Aging, School of Arts, Sciences and Humanities, Universidade de São Paulo, São Paulo, Brazil
| | - Guilherme Souza Abrao
- Graduate Course on Pharmacology, Institute of Biomedical Sciences, Universidade de São Paulo, São Paulo, Brazil.,Laboratory of Neuropharmacology of Aging, School of Arts, Sciences and Humanities, Universidade de São Paulo, São Paulo, Brazil
| | - Mariana Toricelli
- Department of Physiological Sciences, Santa Casa de São Paulo School of Medical Sciences, São Paulo, Brazil
| | - Eliana Hiromi Akamine
- Graduate Course on Pharmacology, Institute of Biomedical Sciences, Universidade de São Paulo, São Paulo, Brazil
| | - Hudson Sousa Buck
- Department of Physiological Sciences, Santa Casa de São Paulo School of Medical Sciences, São Paulo, Brazil
| | - Tania Araujo Viel
- Graduate Course on Pharmacology, Institute of Biomedical Sciences, Universidade de São Paulo, São Paulo, Brazil.,Laboratory of Neuropharmacology of Aging, School of Arts, Sciences and Humanities, Universidade de São Paulo, São Paulo, Brazil
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22
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Barros PR, Costa TJ, Akamine EH, Tostes RC. Vascular Aging in Rodent Models: Contrasting Mechanisms Driving the Female and Male Vascular Senescence. FRONTIERS IN AGING 2021; 2:727604. [PMID: 35821995 PMCID: PMC9261394 DOI: 10.3389/fragi.2021.727604] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/19/2021] [Accepted: 08/25/2021] [Indexed: 12/12/2022]
Abstract
Increasing scientific interest has been directed to sex as a biological and decisive factor on several diseases. Several different mechanisms orchestrate vascular function, as well as vascular dysfunction in cardiovascular and metabolic diseases in males and females. Certain vascular sex differences are present throughout life, while others are more evident before the menopause, suggesting two important and correlated drivers: genetic and hormonal factors. With the increasing life expectancy and aging population, studies on aging-related diseases and aging-related physiological changes have steeply grown and, with them, the use of aging animal models. Mouse and rat models of aging, the most studied laboratory animals in aging research, exhibit sex differences in many systems and physiological functions, as well as sex differences in the aging process and aging-associated cardiovascular changes. In the present review, we introduce the most common aging and senescence-accelerated animal models and emphasize that sex is a biological variable that should be considered in aging studies. Sex differences in the cardiovascular system, with a focus on sex differences in aging-associated vascular alterations (endothelial dysfunction, remodeling and oxidative and inflammatory processes) in these animal models are reviewed and discussed.
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Affiliation(s)
- Paula R. Barros
- Department of Pharmacology, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, Brazil
| | - Tiago J. Costa
- Department of Pharmacology, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, Brazil
| | - Eliana H. Akamine
- Department of Pharmacology, Institute of Biomedical Science, University of São Paulo, São Paulo, Brazil
- *Correspondence: Rita C. Tostes, ; Eliana H. Akamine,
| | - Rita C. Tostes
- Department of Pharmacology, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, Brazil
- *Correspondence: Rita C. Tostes, ; Eliana H. Akamine,
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23
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Ma D, Li Y, Zhu Y, Wei W, Zhang L, Li Y, Li L, Zhang L. Cornel Iridoid Glycoside Ameliorated Alzheimer's Disease-Like Pathologies and Necroptosis through RIPK1/MLKL Pathway in Young and Aged SAMP8 Mice. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE : ECAM 2021; 2021:9920962. [PMID: 34475966 PMCID: PMC8407981 DOI: 10.1155/2021/9920962] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/09/2021] [Accepted: 08/17/2021] [Indexed: 12/26/2022]
Abstract
BACKGROUND Aging is an important risk factor for sporadic Alzheimer's disease (AD) and other neurodegenerative diseases. Senescence-accelerated mouse-prone 8 (SAMP8) is used as an animal model for brain aging and sporadic AD research studies. The aim of the current study was to investigate the pharmacological effects of cornel iridoid glycoside (CIG), an active ingredient of Cornus officinalis, on AD-type pathological changes in young and aged SAMP8 mice. METHODS Locomotor activity test was used to detect the aging process of SAMP8 mice. Nissl staining and immunohistochemical staining were applied to detect neurons and myelin basic protein-labelled myelin sheath. Western blotting was used to detect the expression levels of related proteins of synapse, APP processing, and necroptosis. RESULTS The results showed that SAMP8 mice at the age of 6 and 14 months exhibited lower locomotor activity, age-related neuronal loss, demyelination, synaptic damage, and APP amyloidogenic processing. In addition, the increased levels of receptor-interacting protein kinase-1 (RIPK1), mixed lineage kinase domain-like protein (MLKL), and p-MLKL indicating necroptosis were found in the brain of SAMP8 mice. Intragastric administration of CIG for 2 months improved locomotor activity; alleviated neuronal loss and demyelination; increased the expression of synaptophysin, postsynaptic density protein 95, and AMPA receptor subunit 1; elevated the levels of soluble APPα fragment and disintegrin and metalloproteinase 10 (ADAM10); and decreased the levels of RIPK1, p-MLKL, and MLKL in the brain of young and aged SAMP8 mice. CONCLUSION This study denoted that CIG might be a potential drug for aging-related neurodegenerative diseases such as AD.
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Affiliation(s)
- Denglei Ma
- Department of Pharmacy, Xuanwu Hospital of Capital Medical University, National Center for Neurological Disorders, National Clinical Research Center for Geriatric Diseases, Beijing Engineering Research Center for Nervous System Drugs, Beijing Institute for Brain Disorders, Key Laboratory for Neurodegenerative Diseases of Ministry of Education, Beijing 100053, China
| | - Yanzheng Li
- Department of Pharmacy, Xuanwu Hospital of Capital Medical University, National Center for Neurological Disorders, National Clinical Research Center for Geriatric Diseases, Beijing Engineering Research Center for Nervous System Drugs, Beijing Institute for Brain Disorders, Key Laboratory for Neurodegenerative Diseases of Ministry of Education, Beijing 100053, China
- Hebei Medical University, Shijiazhuang, Hebei 050017, China
| | - Yanqiu Zhu
- Department of Pharmacy, Xuanwu Hospital of Capital Medical University, National Center for Neurological Disorders, National Clinical Research Center for Geriatric Diseases, Beijing Engineering Research Center for Nervous System Drugs, Beijing Institute for Brain Disorders, Key Laboratory for Neurodegenerative Diseases of Ministry of Education, Beijing 100053, China
| | - Weipeng Wei
- Department of Pharmacy, Xuanwu Hospital of Capital Medical University, National Center for Neurological Disorders, National Clinical Research Center for Geriatric Diseases, Beijing Engineering Research Center for Nervous System Drugs, Beijing Institute for Brain Disorders, Key Laboratory for Neurodegenerative Diseases of Ministry of Education, Beijing 100053, China
| | - Li Zhang
- Department of Pharmacy, Xuanwu Hospital of Capital Medical University, National Center for Neurological Disorders, National Clinical Research Center for Geriatric Diseases, Beijing Engineering Research Center for Nervous System Drugs, Beijing Institute for Brain Disorders, Key Laboratory for Neurodegenerative Diseases of Ministry of Education, Beijing 100053, China
| | - Yali Li
- Department of Pharmacy, Xuanwu Hospital of Capital Medical University, National Center for Neurological Disorders, National Clinical Research Center for Geriatric Diseases, Beijing Engineering Research Center for Nervous System Drugs, Beijing Institute for Brain Disorders, Key Laboratory for Neurodegenerative Diseases of Ministry of Education, Beijing 100053, China
| | - Lin Li
- Department of Pharmacy, Xuanwu Hospital of Capital Medical University, National Center for Neurological Disorders, National Clinical Research Center for Geriatric Diseases, Beijing Engineering Research Center for Nervous System Drugs, Beijing Institute for Brain Disorders, Key Laboratory for Neurodegenerative Diseases of Ministry of Education, Beijing 100053, China
| | - Lan Zhang
- Department of Pharmacy, Xuanwu Hospital of Capital Medical University, National Center for Neurological Disorders, National Clinical Research Center for Geriatric Diseases, Beijing Engineering Research Center for Nervous System Drugs, Beijing Institute for Brain Disorders, Key Laboratory for Neurodegenerative Diseases of Ministry of Education, Beijing 100053, China
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24
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Xie WQ, He M, Yu DJ, Wu YX, Wang XH, Lv S, Xiao WF, Li YS. Mouse models of sarcopenia: classification and evaluation. J Cachexia Sarcopenia Muscle 2021; 12:538-554. [PMID: 33951340 PMCID: PMC8200444 DOI: 10.1002/jcsm.12709] [Citation(s) in RCA: 86] [Impact Index Per Article: 28.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/06/2020] [Revised: 03/09/2021] [Accepted: 03/29/2021] [Indexed: 02/06/2023] Open
Abstract
Sarcopenia is a progressive and widespread skeletal muscle disease that is related to an increased possibility of adverse consequences such as falls, fractures, physical disabilities and death, and its risk increases with age. With the deepening of the understanding of sarcopenia, the disease has become a major clinical disease of the elderly and a key challenge of healthy ageing. However, the exact molecular mechanism of this disease is still unclear, and the selection of treatment strategies and the evaluation of its effect are not the same. Most importantly, the early symptoms of this disease are not obvious and are easy to ignore. In addition, the clinical manifestations of each patient are not exactly the same, which makes it difficult to effectively study the progression of sarcopenia. Therefore, it is necessary to develop and use animal models to understand the pathophysiology of sarcopenia and develop therapeutic strategies. This paper reviews the mouse models that can be used in the study of sarcopenia, including ageing models, genetically engineered models, hindlimb suspension models, chemical induction models, denervation models, and immobilization models; analyses their advantages and disadvantages and application scope; and finally summarizes the evaluation of sarcopenia in mouse models.
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Affiliation(s)
- Wen-Qing Xie
- Department of Orthopedics, Xiangya Hospital, Central South University, Changsha, Hunan, China.,National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Miao He
- Department of Orthopedics, Xiangya Hospital, Central South University, Changsha, Hunan, China.,National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Deng-Jie Yu
- Department of Orthopedics, Xiangya Hospital, Central South University, Changsha, Hunan, China.,National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Yu-Xiang Wu
- School of Kinesiology, Jianghan University, Wuhan, Hubei, China
| | - Xiu-Hua Wang
- Xiang Ya Nursing School, The Central South University, Changsha, Hunan, China
| | - Shan Lv
- Department of Geriatric Endocrinology, First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, China
| | - Wen-Feng Xiao
- Department of Orthopedics, Xiangya Hospital, Central South University, Changsha, Hunan, China.,National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Yu-Sheng Li
- Department of Orthopedics, Xiangya Hospital, Central South University, Changsha, Hunan, China.,National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan, China
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25
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Zhang J, Chen Z, Yu H, Lu Y, Yu W, Miao M, Shi H. Anti-aging effects of a functional food via the action of gut microbiota and metabolites in aging mice. Aging (Albany NY) 2021; 13:17880-17900. [PMID: 33878733 PMCID: PMC8312451 DOI: 10.18632/aging.202873] [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: 10/08/2020] [Accepted: 03/13/2021] [Indexed: 12/13/2022]
Abstract
Wushen (WS) is a mixed food containing 55 natural products that is beneficial to human health. This study aimed to reveal the preventive effect of WS on aging via a combined analysis of gut microbiome and metabolome. Senescence-accelerated mouse prone 8 (SAMP8) mice were used as aging model and senescence-accelerated mouse resistant 1 (SAMR1) mice as control. The mice were fed four diet types; control diet (for SAMR1 mice), standard diet (for SAMP8 mice, as SD group), WS diet, and fecal microbiota transplantation (FMT; transplanted from aging-WS mice). Our results showed that the weight, food intake, neurological function, and general physical conditions significantly improved in WS-fed mice compared to those fed with SD. The CA1 hippocampal region in WS-fed aged mice showed fewer shriveled neurons and increased neuronal layers compared to that of the SD group. WS-fed mice showed a decrease in malondialdehyde and an increase in superoxide dismutase levels in the brain; additionally, IL-6 and TNF-α levels significantly decreased, whereas IL-2 levels and the proportion of lymphocytes, CD3+CD8+ T, and CD4+IFNγ+T cells increased in WS-fed mice. After fed with WS, the abundance of Ruminococcus and Butyrivibrio markedly increased, whereas Lachnoclostridium and Ruminiclostridium significantly decreased in the aging mice. In addition, 887 differentially expressed metabolites were identified in fecal samples, among these, Butyrivibrio was positively correlated with D-glucuronic acid and Ruminococcus was positively associated with 5-acetamidovalerate. These findings provide mechanistic insight into the impact of WS on aging, and WS may be a valuable diet for preventing aging.
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Affiliation(s)
- Jie Zhang
- Department of Endocrinology, The Affiliated Huai'an Hospital of Xuzhou Medical University, Huai'an 223002, Jiangsu, China
| | - Zhewen Chen
- Department of Nutrition, Zhejiang Provincial People's Hospital, Hangzhou 310000, Zhejiang, China
| | - Huaixi Yu
- Department of Orthopedics, The Affiliated Huai'an Hospital of Xuzhou Medical University, Huai'an 223002, Jiangsu, China
| | - Yanwen Lu
- Department of Endocrinology, The Affiliated Huai'an Hospital of Xuzhou Medical University, Huai'an 223002, Jiangsu, China
| | - Weinan Yu
- Department of Endocrinology, The Affiliated Huai'an Hospital of Xuzhou Medical University, Huai'an 223002, Jiangsu, China
| | - Mingyong Miao
- Institute of BioPharmaceutical Research, Liaocheng University, Liaocheng 252059, Shandong, China.,Department of Biochemistry and Molecular Biology, The Naval Medical University, Shanghai 200433, China
| | - Hanping Shi
- Department of Gastrointestinal Surgery, Department of Clinical Nutrition, Beijing Shijitan Hospital, Capital Medical University, Beijing 100038, China
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Chandra A, Rajawat J. Skeletal Aging and Osteoporosis: Mechanisms and Therapeutics. Int J Mol Sci 2021; 22:ijms22073553. [PMID: 33805567 PMCID: PMC8037620 DOI: 10.3390/ijms22073553] [Citation(s) in RCA: 90] [Impact Index Per Article: 30.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2021] [Revised: 03/23/2021] [Accepted: 03/25/2021] [Indexed: 02/06/2023] Open
Abstract
Bone is a dynamic organ maintained by tightly regulated mechanisms. With old age, bone homeostasis, which is maintained by an intricate balance between bone formation and bone resorption, undergoes deregulation. Oxidative stress-induced DNA damage, cellular apoptosis, and cellular senescence are all responsible for this tissue dysfunction and the imbalance in the bone homeostasis. These cellular mechanisms have become a target for therapeutics to treat age-related osteoporosis. Genetic mouse models have shown the importance of senescent cell clearance in alleviating age-related osteoporosis. Furthermore, we and others have shown that targeting cellular senescence pharmacologically was an effective tool to alleviate age- and radiation-induced osteoporosis. Senescent cells also have an altered secretome known as the senescence associated secretory phenotype (SASP), which may have autocrine, paracrine, or endocrine function. The current review discusses the current and potential pathways which lead to a senescence profile in an aged skeleton and how bone homeostasis is affected during age-related osteoporosis. The review has also discussed existing therapeutics for the treatment of osteoporosis and rationalizes for novel therapeutic options based on cellular senescence and the SASP as an underlying pathogenesis of an aging bone.
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Affiliation(s)
- Abhishek Chandra
- Department of Physiology and Biomedical Engineering, Mayo Clinic, Rochester, MN 55902, USA
- Department of Internal Medicine, Division of Geriatric Medicine and Gerontology, Mayo Clinic, Rochester, MN 55902, USA
- Robert and Arlene Kogod Aging Center, Mayo Clinic, Rochester, MN 55902, USA
- Correspondence: ; Tel.: +1-507-266-1847
| | - Jyotika Rajawat
- Department of Zoology, University of Lucknow, University Rd, Babuganj, Hasanganj, Lucknow, Uttar Pradesh 226007, India;
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Xu H, Wang W, Ellenbroek B, You Z. Editorial: Cognitive Dysfunctions in Psychiatric Disorders: Brain-Immune Interaction Mechanisms and Integrative Therapeutic Approaches. Front Integr Neurosci 2021; 15:649425. [PMID: 33679338 PMCID: PMC7929987 DOI: 10.3389/fnint.2021.649425] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2021] [Accepted: 01/25/2021] [Indexed: 12/02/2022] Open
Affiliation(s)
- Haiyun Xu
- School of Mental Health, Wenzhou Medical University, Wenzhou, China
| | - Weiwen Wang
- CAS Key Laboratory of Mental Health, Institute of Psychology, Beijing, China.,Department of Psychology, University of Chinese Academy of Sciences, Beijing, China
| | - Bart Ellenbroek
- School of Psychology, Victoria University of Wellington, Wellington, New Zealand
| | - Zili You
- School of Life Science and Technology, Center for Informational Biology, University of Electronic Science and Technology of China, Chengdu, China
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Tsumagari R, Maruo K, Nakao T, Ueda S, Yamanoue M, Shirai Y. Motor Dyscoordination and Alteration of Functional Correlation Between DGKγ and PKCγ in Senescence-Accelerated Mouse Prone 8 (SAMP8). Front Aging Neurosci 2021; 13:573966. [PMID: 33584249 PMCID: PMC7876064 DOI: 10.3389/fnagi.2021.573966] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2020] [Accepted: 01/11/2021] [Indexed: 11/13/2022] Open
Abstract
Senescence-accelerated mouse prone 8 (SAMP8) is an animal model of age-related central nervous system (CNS) disorders. Although SAMP8 shows deficits in learning, memory, and emotion, its motor coordination has not been clarified. We have recently reported that DGKγ-regulated PKCγ activity is important for cerebellar motor coordination. However, involvement of the functional correlation between the kinases in age-related motor dyscoordination still remains unknown. Therefore, we have investigated the motor coordination in SAMP8 and involvement of the functional correlation between DGKγ and PKCγ in the age-related motor dyscoordination. Although 6 weeks old SAMP8 showed equivalent motor coordination with control mice (SAMR1) in the rotarod test, 24 weeks old SAMP8 exhibited significantly less latency in the rotarod test and more frequent slips in the beam test compared to the age-matched SAMR1. Furthermore, 24 weeks old SAMP8 showed the higher locomotor activity in open field test and Y-maze test. Western blotting revealed that DGKγ expression decreased in the cerebellum of 24 weeks old SAMP8, while PKCγ was upregulated. These results suggest that SAMP8 is a useful model of age-related motor dysfunction and that the DGKγ-regulated PKCγ activity is involved in the age-related motor dyscoordination.
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Affiliation(s)
- Ryosuke Tsumagari
- Department of Applied Chemistry in Bioscience, Graduate School of Agricultural Sciences, Kobe University, Kobe, Japan
| | - Kenta Maruo
- Department of Applied Chemistry in Bioscience, Graduate School of Agricultural Sciences, Kobe University, Kobe, Japan
| | - Takaaki Nakao
- Department of Applied Chemistry in Bioscience, Graduate School of Agricultural Sciences, Kobe University, Kobe, Japan
| | - Shuji Ueda
- Department of Applied Chemistry in Bioscience, Graduate School of Agricultural Sciences, Kobe University, Kobe, Japan
| | - Minoru Yamanoue
- Department of Applied Chemistry in Bioscience, Graduate School of Agricultural Sciences, Kobe University, Kobe, Japan
| | - Yasuhito Shirai
- Department of Applied Chemistry in Bioscience, Graduate School of Agricultural Sciences, Kobe University, Kobe, Japan
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Abstract
Cellular senescence is a cell cycle arrest in damaged or aged cells. Although this represents a critical mechanism of tumor suppression, persistence of senescent cells during aging induces chronic inflammation and tissue dysfunction through the adoption of the senescence-associated secretory phenotype (SASP). This has been shown to promote the progression of age-associated diseases such as Alzheimer's disease, pulmonary fibrosis, and atherosclerosis. As the global population ages, the role of cellular senescence in disease is becoming a more critical area of research. In this review, mechanisms, biomarkers, and pathology of cellular senescence and SASP are described with a brief discussion of literature supporting a role for cellular senescence in veterinary diseases. Cell culture and mouse models used in senescence studies are also reviewed including the senescence-accelerated mouse-prone (SAMP), senescence pathway knockout mice (p53, p21 [CDKN1A], and p16 [CDKN2A]), and the more recently developed senolysis mice, which allow for direct visualization and elimination (or lysis) of senescent cells in live mice (p16-3MR and INK-ATTAC). These and other mouse models have demonstrated the importance of cellular senescence in embryogenesis and wound healing but have also identified a therapeutic benefit for targeting persistent senescent cells in age-associated diseases including neurodegeneration, diabetes, and cardiac fibrosis.
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Affiliation(s)
- Jessica Beck
- Laboratory of Human Carcinogenesis, 313611National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
- Purdue University, West Lafayette, IN, USA
| | - Izumi Horikawa
- Laboratory of Human Carcinogenesis, 313611National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Curtis Harris
- Laboratory of Human Carcinogenesis, 313611National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
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30
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Senescence-accelerated mouse prone 8 mice exhibit specific morphological changes in the small intestine during senescence and after pectin supplemented diet. Exp Gerontol 2020; 142:111099. [PMID: 33011215 DOI: 10.1016/j.exger.2020.111099] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2020] [Revised: 09/23/2020] [Accepted: 09/23/2020] [Indexed: 12/13/2022]
Abstract
Impairment of gastrointestinal function and reduction of nutrient absorption associated with aging contribute to increased risk of malnutrition in the elderly population, resulting in physical weakness and vulnerability to disease. The present study was performed to examine the relationships between aging-associated morphological changes of the small intestine and nutrient malabsorption using senescence-accelerated mouse prone 8 (SAMP8) mice. Comparison of the morphology of the small intestine of young (22-week-old) and senescent (43-week-old) SAMP8 mice showed no significant changes in villus length, while the mRNA expression levels of secretory cell marker genes were significantly reduced in senescent mice. In addition, crypts recovered from the small intestine of senescent mice showed a good capacity to form intestinal organoids ex vivo, suggesting that the regenerative capacity of intestinal stem cells (ISCs) was unaffected by accelerated senescence. These results indicated that changes induced by accelerated senescence in the small intestine of SAMP8 mice are different from changes reported previously in normal aging mouse models. Biochemical analyses of serum before and during senescence also indicated that senescent SAMP8 mice are not in a malabsorption state. Furthermore, a diet supplemented with persimmon pectin had a mild effect on the small intestine of senescent SAMP8 mice. Intestinal villus length was slightly increased in the medial part of the small intestine of pectin-fed mice. In contrast, intestinal crypt formation capacity was enhanced by the pectin diet. Organoid culture derived from the small intestine of mice fed pectin exhibited a greater number of lobes per organoid compared with those from mice fed a control diet, and Lyz1 and Olfm4 mRNA levels were significantly increased. In conclusion, accelerated senescence induced exclusive changes in the small intestine, which were not related to nutrient malabsorption. Therefore, the SAMP8 strain may not be a suitable model to evaluate the effects of aging on intestinal homeostasis and nutrient absorption impairment.
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Kelley KW, Peng YP, Liu Q, Chang HC, Spencer SJ, Hutchinson MR, Shimada A. Psychoneuroimmunology goes East: Development of the PNIRS China affiliate and its expansion into PNIRS Asia-Pacific. Brain Behav Immun 2020; 88:75-87. [PMID: 32304882 PMCID: PMC7156953 DOI: 10.1016/j.bbi.2020.04.026] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/09/2020] [Accepted: 04/09/2020] [Indexed: 12/14/2022] Open
Abstract
The Psychoneuroimmunology Research Society (PNIRS) created an official Chinese regional affiliate in 2012, designated PNIRSChina. Now, just eight years later, the program has been so successful in advancing the science of psychoneuroimmunology that it has expanded to the whole of Asia-Oceania. In 2017, PNIRSChina became PNIRSAsia-Pacific. Between 2012 and 2019, this outreach affiliate of PNIRS organized seven symposia at major scientific meetings in China as well as nine others in Taiwan, Japan, South Korea, Australia and New Zealand. This paper summarizes the remarkable growth of PNIRSAsia-Pacific. Here, regional experts who have been instrumental in organizing these PNIRSAsia-Pacific symposia briefly review and share their views about the past, present and future state of psychoneuroimmunology research in China, Taiwan, Australia and Japan. The newest initiative of PNIRSAsia-Pacific is connecting Asia-Pacific laboratories with those in Western countries through a simple web-based registration system. These efforts not only contribute to the efforts of PNIRS to serve a truly global scientific society but also to answer the imperative call of increasing diversity in our science.
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Affiliation(s)
- Keith W Kelley
- Department of Pathology, College of Medicine and Department of Animal Sciences, College of ACES, University of Illinois at Urbana-Champaign, 212 Edward R. Madigan Laboratory, 1201 West Gregory Drive, Urbana, IL 61801, USA.
| | - Yu-Ping Peng
- Department of Physiology and Laboratory of Neuroimmunology, School of Medicine, Nantong University, 19 Qixiu Road, Nantong 226001, People's Republic of China
| | - Quentin Liu
- Dalian Medical University, Institute of Cancer Stem Cell, Cancer Center Room 317, 9 Lvshun Road South, Dalian 116000, People's Republic of China
| | - Hui-Chih Chang
- Mind-Body Interface Center, China Medical University Hospital, Taichung, Taiwan
| | - Sarah J Spencer
- School of Health and Biomedical Sciences, RMIT University, Melbourne, Victoria, Australia
| | - Mark R Hutchinson
- Adelaide Medical School, University of Adelaide, Adelaide, South Australia 5005, Australia and the ARC Centre of Excellence for Nanoscale Biophotonics
| | - Atsuyoshi Shimada
- Faculty of Health Sciences, Kyorin University, 5-4-1 Shimorenjaku, Mitaka, 181-8612 Tokyo, Japan
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32
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Toricelli M, Evangelista SR, Buck HS, Viel TA. Microdose Lithium Treatment Reduced Inflammatory Factors and Neurodegeneration in Organotypic Hippocampal Culture of Old SAMP-8 Mice. Cell Mol Neurobiol 2020; 41:1509-1520. [PMID: 32642922 DOI: 10.1007/s10571-020-00916-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2020] [Accepted: 07/02/2020] [Indexed: 12/14/2022]
Abstract
It was already shown that microdoses of lithium carbonate (Li2CO3) promoted memory stabilization in humans and mice. Prolonged treatment also reduced neuronal loss and increased the density of the neurotrophin BDNF in transgenic mice for Alzheimer's disease. The aim of this study was to evaluate whether lithium ions affect inflammatory profiles and neuronal integrity in an animal model of accelerated senescence (SAMP-8). Organotypic hippocampal cultures obtained from 11 to 12-month-old SAMP-8 mice were treated with 2 µM, 20 µM and 200 µM Li2CO3. 2 µM Li2CO3 promoted a significant reduction in propidium iodide uptake in the CA2 area of hippocampus, whereas 20 µM promoted neuroprotection in the CA3 and GrDG areas. 200 µM caused an increase in cellular death, showing toxicity. Measured with quantitative PCR, IL-1α, IL-6 and MIP-1B/CCL-4 gene expression was significantly reduced with 20 µM Li2CO3, whereas IL-10 gene expression was significantly increased with the same concentration. In addition, 2 µM and 20 µM Li2CO3 were also effective in reducing the activation of NFkB and inflammatory cytokines densities, as evaluated by ELISA. It is concluded that very low doses of Li2CO3 can play an important role in neuroprotection as it can reduce neuronal loss and neuroinflammation in older individuals.
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Affiliation(s)
- Mariana Toricelli
- Department of Physiological Sciences, Santa Casa de Sao Paulo School of Medical Sciences, São Paulo, Brazil
| | | | - Hudson Sousa Buck
- Department of Physiological Sciences, Santa Casa de Sao Paulo School of Medical Sciences, São Paulo, Brazil
| | - Tania Araujo Viel
- Laboratory of Neuropharmacology of Aging, School of Arts, Sciences and Humanities, Universidade de São Paulo, São Paulo, Brazil.
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Histological scoring system for subchondral bone changes in murine models of joint aging and osteoarthritis. Sci Rep 2020; 10:10077. [PMID: 32572077 PMCID: PMC7308327 DOI: 10.1038/s41598-020-66979-7] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2019] [Accepted: 06/01/2020] [Indexed: 01/09/2023] Open
Abstract
To establish a histopathological scoring system for changes in subchondral bone in murine models of knee osteoarthritis (OA), three key parameters, subchondral bone plate (Subcho.BP) consisting of the combination of Subcho.BP.thickness (Subcho.BP.Th) and angiogenesis, bone volume (BV/TV) and osteophytes, were selected. The new grading system was tested in two mouse OA models, (1) senescence accelerated mouse (SAM)-prone 8 (SAMP8) as spontaneous OA model with SAM-resistant 1 (SAMR1) as control; (2) destabilization of the medial meniscus in C57BL/6 mice as surgical OA model. Results of the spontaneous OA model showed that Subcho.BP.Th was significantly wider, angiogenesis was greater, and BV/TV was higher in SAMP8 than SAMR1. Notably, subchondral bone score was dramatically higher in SAMP8 at 6 weeks than SAMR1, while OARSI cartilage scores became higher only at 14 weeks. In the surgical OA model, the results were similar to the spontaneous OA model, but osteophytes appeared earlier. There were strong correlations both in Subcho.BP.Th and BV/TV between this scoring system and µCT (r = 0.89, 0.84, respectively). Inter-rater reliabilities for each parameter using this system were more than 0.943. We conclude that this new histopathological scoring system is readily applicable for evaluating the early changes in aging and OA-affected murine subchondral bone.
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34
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Forman K, Martínez F, Cifuentes M, Fernández M, Bertinat R, Torres P, Salazar K, Godoy A, Nualart F. Dehydroascorbic acid, the oxidized form of vitamin C, improves renal histology and function in old mice. J Cell Physiol 2020; 235:9773-9784. [PMID: 32437012 DOI: 10.1002/jcp.29791] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2020] [Revised: 04/27/2020] [Accepted: 05/04/2020] [Indexed: 12/18/2022]
Abstract
Oxidative stress and inflammation are crucial factors that increase with age. In the progression of multiple age-related diseases, antioxidants and bioactive compounds have been recognized as useful antiaging agents. Oxidized or reduced vitamin C exerts different actions on tissues and has different metabolism and uptake. In this study, we analyzed the antiaging effect of vitamin C, both oxidized and reduced forms, in renal aging using laser microdissection, quantitative reverse-transcription polymerase chain reaction, and immunohistochemical analyses. In the kidneys of old SAM mice (10 months of age), a model of accelerated senescence, vitamin C, especially in the oxidized form (dehydroascorbic acid [DHA]) improves renal histology and function. Serum creatinine levels and microalbuminuria also decrease after treatment with a decline in azotemia. In addition, sodium-vitamin C cotransporter isoform 1 levels, which were increased during aging, are normalized. In contrast, the pattern of glucose transporter 1 expression is not affected by aging or vitamin C treatment. We conclude that oxidized and reduced vitamin C are potent antiaging therapies and that DHA reverses the kidney damage observed in senescence-accelerated prone mouse 8 to a greater degree.
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Affiliation(s)
- Katherine Forman
- Center for Advanced Microscopy CMA BIO BIO, University of Concepcion, Concepcion, Chile.,Department of Nutrition and Dietetics, Pharmacy School, University of Concepcion, Concepcion, Chile
| | - Fernando Martínez
- Center for Advanced Microscopy CMA BIO BIO, University of Concepcion, Concepcion, Chile.,Laboratory of Neurobiology and Stem Cells NeuroCellT, Department of Cellular Biology, Faculty of Biological Sciences, University of Concepcion, Concepcion, Chile
| | - Manuel Cifuentes
- Department of Cell Biology, Genetics and Physiology, University of Malaga, IBIMA, BIONAND, Andalusian Center for Nanomedicine and Biotechnology and Networking Research Center on Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Malaga, Spain
| | - Marcos Fernández
- Department of Pharmacy, Pharmacy School, University of Concepcion, Concepcion, Chile
| | - Romina Bertinat
- Center for Advanced Microscopy CMA BIO BIO, University of Concepcion, Concepcion, Chile.,Laboratory of Neurobiology and Stem Cells NeuroCellT, Department of Cellular Biology, Faculty of Biological Sciences, University of Concepcion, Concepcion, Chile
| | - Pablo Torres
- Department of Pharmacy, Pharmacy School, University of Concepcion, Concepcion, Chile
| | - Katterine Salazar
- Center for Advanced Microscopy CMA BIO BIO, University of Concepcion, Concepcion, Chile.,Laboratory of Neurobiology and Stem Cells NeuroCellT, Department of Cellular Biology, Faculty of Biological Sciences, University of Concepcion, Concepcion, Chile
| | - Alejandro Godoy
- Centro de Biología Celular y Biomedicina (CEBICEM), Facultad de Medicina y Ciencias, Universidad San Sebastían, Santiago, Chile.,Department of Urology, Roswell Park Comprehensive Cancer Center, Buffalo, New York
| | - Francisco Nualart
- Center for Advanced Microscopy CMA BIO BIO, University of Concepcion, Concepcion, Chile.,Laboratory of Neurobiology and Stem Cells NeuroCellT, Department of Cellular Biology, Faculty of Biological Sciences, University of Concepcion, Concepcion, Chile
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Hong H, Mo Y, Li D, Xu Z, Liao Y, Yin P, Liu X, Xia Y, Fang J, Wang Q, Fang S. Aberrant Expression Profiles of lncRNAs and Their Associated Nearby Coding Genes in the Hippocampus of the SAMP8 Mouse Model with AD. MOLECULAR THERAPY. NUCLEIC ACIDS 2020; 20:140-154. [PMID: 32169802 PMCID: PMC7066064 DOI: 10.1016/j.omtn.2020.02.008] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/04/2019] [Revised: 12/04/2019] [Accepted: 02/11/2020] [Indexed: 12/25/2022]
Abstract
The senescence-accelerated mouse prone 8 (SAMP8) mouse model is a useful model for investigating the fundamental mechanisms involved in the age-related learning and memory deficits of Alzheimer’s disease (AD), while the SAM/resistant 1 (SAMR1) mouse model shows normal features. Recent evidence has shown that long non-coding RNAs (lncRNAs) may play an important role in AD pathogenesis. However, a comprehensive and systematic understanding of the function of AD-related lncRNAs and their associated nearby coding genes in AD is still lacking. In this study, we collected the hippocampus, the main area of AD pathological processes, of SAMP8 and SAMR1 animals and performed microarray analysis to identify aberrantly expressed lncRNAs and their associated nearby coding genes, which may contribute to AD pathogenesis. We identified 3,112 differentially expressed lncRNAs and 3,191 differentially expressed mRNAs in SAMP8 mice compared to SAMR1 mice. More than 70% of the deregulated lncRNAs were intergenic and exon sense-overlapping lncRNAs. Gene Ontology (GO) and pathway analyses of the AD-related transcripts were also performed and are described in detail, which imply that metabolic process reprograming was likely related to AD. Furthermore, six lncRNAs and six mRNAs were selected for further validation of the microarray results using quantitative PCR, and the results were consistent with the findings from the microarray. Moreover, we analyzed 780 lincRNAs (also called long “intergenic” non-coding RNAs) and their associated nearby coding genes. Among these lincRNAs, AK158400 had the most genes nearby (n = 13), all of which belonged to the histone cluster 1 family, suggesting regulation of the nucleosome structure of the chromosomal fiber by affecting nearby genes during AD progression. In addition, we also identified 97 aberrant antisense lncRNAs and their associated coding genes. It is likely that these dysregulated lncRNAs and their associated nearby coding genes play a role in the development and/or progression of AD.
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Affiliation(s)
- Honghai Hong
- Department of Clinical Laboratory, The Third Affiliated Hospital of Guangzhou Medical University, 63 Duobao Road, Guangzhou, Guangdong Province, China; Department of Pathology and Laboratory Medicine, Indiana University School of Medicine, Indianapolis, IN 46202, USA
| | - Yousheng Mo
- Science and Technology Innovation Center, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong Province, China
| | - Dongli Li
- Science and Technology Innovation Center, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong Province, China
| | - Zhiheng Xu
- Department of Gastrointestinal Surgery, The First Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, Guangdong Province, China
| | - Yanfang Liao
- Science and Technology Innovation Center, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong Province, China
| | - Ping Yin
- Department of Clinical Laboratory, The Third Affiliated Hospital of Guangzhou Medical University, 63 Duobao Road, Guangzhou, Guangdong Province, China
| | - Xinning Liu
- Science and Technology Innovation Center, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong Province, China
| | - Yong Xia
- Department of Clinical Laboratory, The Third Affiliated Hospital of Guangzhou Medical University, 63 Duobao Road, Guangzhou, Guangdong Province, China
| | - Jiansong Fang
- Science and Technology Innovation Center, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong Province, China; DME Center, Institute of Clinical Pharmacology, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong Province, China.
| | - Qi Wang
- Science and Technology Innovation Center, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong Province, China; DME Center, Institute of Clinical Pharmacology, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong Province, China.
| | - Shuhuan Fang
- Science and Technology Innovation Center, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong Province, China; DME Center, Institute of Clinical Pharmacology, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong Province, China; Department of Cardiothoracic Surgery, Stanford University School of Medicine, Stanford, CA, USA.
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36
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Ligustilide improves aging-induced memory deficit by regulating mitochondrial related inflammation in SAMP8 mice. Aging (Albany NY) 2020; 12:3175-3189. [PMID: 32065782 PMCID: PMC7066895 DOI: 10.18632/aging.102793] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2019] [Accepted: 01/12/2020] [Indexed: 02/06/2023]
Abstract
Alzheimer’s disease (AD) is an age-related neurodegenerative disease. The main active component in Angelica sinensis, ligustilide, has been reported to have the protective effect on AD. Whether ligustilide could protect against age-induced dementia is still unknown. In this study, we used an aging model, SAMP8 mice to investigate the neuroprotective effect of ligustilide. The behavioral tests (Morris water maze, object recognition task, open field test and elevated plus maze) results showed that ligustilide could improve the memory deficit in SAMP8 mice. For mechanism study, we found that the protein level of P-Drp1 (fission) was decreased and the levels of Mfn1 and Mfn2 (fusion) were increased after ligustilide treatment in animals and cells. Ligustilide increased P-AMPK and ATP levels. Malondialdehyde and superoxide dismutase activity results indicated that ligustilide exerts antioxidant effects by reducing the level of oxidative stress markers. In addition, ligustilide improved neural function and alieved apoptosis and neuroinflammation. These findings have shown that ligustilide treatment improves mitochondrial function in SAMP8 mice, and improves memory loss.
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Kim SA, Lam TG, Yook JI, Ahn SG. Antioxidant modifications induced by the new metformin derivative HL156A regulate metabolic reprogramming in SAMP1/kl (-/-) mice. Aging (Albany NY) 2019; 10:2338-2355. [PMID: 30222592 PMCID: PMC6188477 DOI: 10.18632/aging.101549] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2018] [Accepted: 09/06/2018] [Indexed: 12/13/2022]
Abstract
Aging is characterized by a reduced ability to defend against stress, an inability to maintain homeostasis, and an increased risk of disease. In this study, a metabolomics approach was used to identify novel metabolic pathways that are perturbed in a mouse model of accelerated aging (SAMP1/kl-/-) and to gain new insights into the metabolic associations of the metformin derivative HL156A. Extensive inflammation and calcification were observed in the tissues of the SAMP1/kl-/- mice with premature aging. In mouse embryonic fibroblasts (MEFs) obtained from SAMP1/kl-/- mice, we observed that HL156A induced FOXO1 expression through inhibition of the IGF-1/AKT/mTOR signaling pathways. Treatment of HL156A decreased reactive oxygen species production and enhanced mitochondrial transmembrane potential in SAMP1/kl-/- MEFs. A metabolomic profile analysis showed that HL156A increased the GSH/GSSG ratio in the kidneys of SAMP1/kl-/- mice (8-12 weeks old). In addition, treating SAMP1/kl-/- mice with HL156A (30 mg/kg) for 4 weeks improved survival and decreased the significant elevation of oxidized GSH (GSSG) that was observed in SAMP1/kl-/- mice. In histological sections, HL156A administered SAMP1/kl-/- mice exhibited a decrease in excessive calcification. Based on these findings, we conclude that the new metformin derivative HL156A may inhibit oxidative damage by inducing glutathione metabolism and antioxidant pathways.
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Affiliation(s)
- Soo-A Kim
- Department of Biochemistry, School of Oriental Medicine, Dongguk University, Gyeongju 38066, Republic of Korea
| | - Thuy Giang Lam
- Department of Pathology, School of Dentistry, Chosun University, Gwangju 61452, Republic of Korea
| | - Jong-In Yook
- Department of Oral Pathology, College of Dentistry, Yonsei University, Seoul 03722, Republic of Korea
| | - Sang-Gun Ahn
- Department of Pathology, School of Dentistry, Chosun University, Gwangju 61452, Republic of Korea
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Chawalitpong S, Ichikawa S, Uchibori Y, Nakamura S, Katayama S. Long-Term Intake of Glucoraphanin-Enriched Kale Suppresses Skin Aging via Activating Nrf2 and the TβRII/Smad Pathway in SAMP1 Mice. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2019; 67:9782-9788. [PMID: 31390859 DOI: 10.1021/acs.jafc.9b02725] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Sulforaphane, a potent antioxidant compound, is unstable at ambient temperature, whereas its precursor glucoraphanin is stable and metabolized to sulforaphane. Thus, we hypothesized that glucoraphanin-rich diet could effectively induce antioxidant enzyme activities and investigated the protective effects of long-term intake of a glucoraphanin-enriched kale (GEK) diet on skin aging in senescence-accelerated mouse prone 1 (SAMP1) mice. The senescence grading score was significantly lower after treatment with GEK for 39 weeks than that of the control mice. GEK also suppressed the thinning of the dorsal skin layer. Moreover, the GEK treatment enhanced the collagen production and increased the nuclear translocation of Nrf2 and HO-1 expression level in the skin tissue. TβRII and Smad3 expressions were clearly higher in the GEK-treated group than in the control group. Thus, GEK suppressed senescence in SAMP1 mice by enhancing the antioxidant activity and collagen production via the TβRII/Smad3 pathway, suggesting its practical applications for protection against skin aging.
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Affiliation(s)
- Supatta Chawalitpong
- Department of Agriculture, Graduate School of Science and Technology , Shinshu University , 8304 Minamiminowa , Kamiina, Nagano 399-4598 , Japan
| | - Saki Ichikawa
- Department of Agriculture, Graduate School of Science and Technology , Shinshu University , 8304 Minamiminowa , Kamiina, Nagano 399-4598 , Japan
| | - Yuki Uchibori
- Department of Agriculture, Graduate School of Science and Technology , Shinshu University , 8304 Minamiminowa , Kamiina, Nagano 399-4598 , Japan
| | - Soichiro Nakamura
- Department of Agriculture, Graduate School of Science and Technology , Shinshu University , 8304 Minamiminowa , Kamiina, Nagano 399-4598 , Japan
| | - Shigeru Katayama
- Department of Agriculture, Graduate School of Science and Technology , Shinshu University , 8304 Minamiminowa , Kamiina, Nagano 399-4598 , Japan
- Institute for Biomedical Sciences, Interdisciplinary Cluster for Cutting Edge Research , Shinshu University , 8304 Minamiminowa , Kamiina, Nagano 399-4598 , Japan
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39
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Maroni L, Pinto C, Giordano DM, Saccomanno S, Banales JM, Spallacci D, Albertini MC, Orlando F, Provinciali M, Milkiewicz M, Melum E, Labiano I, Milkiewicz P, Rychlicki C, Trozzi L, Scarpelli M, Benedetti A, Svegliati Baroni G, Marzioni M. Aging-Related Expression of Twinfilin-1 Regulates Cholangiocyte Biological Response to Injury. Hepatology 2019; 70:883-898. [PMID: 30561764 DOI: 10.1002/hep.30466] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/10/2018] [Accepted: 12/08/2018] [Indexed: 12/14/2022]
Abstract
Disorders of the biliary tree develop and progress differently according to patient age. It is currently not known whether the aging process affects the response to injury of cholangiocytes. The aim of this study was to identify molecular pathways associated with cholangiocyte aging and to determine their effects in the biological response to injury of biliary cells. A panel of microRNAs (miRs) involved in aging processes was evaluated in cholangiocytes of young and old mice (2 months and 22 months of age, respectively) and subjected to a model of sclerosing cholangitis. Intracellular pathways that are common to elevated miRs were identified by in silico analysis. Cell proliferation and senescence were evaluated in Twinfilin-1 (Twf1) knocked-down cells. In vivo, senescence-accelerated prone mice (Samp8, a model for accelerated aging), Twf1-/- , or their respective controls were subjected to DDC (3,5-diethoxycarbonyl-1,4-dihydrocollidine). Cholangiocytes from DDC-treated mice showed up-regulation of a panel of aging-related miRs. Twf1 was identified by in silico analysis as a common target of the up-regulated miRs. Twf1 expression was increased both in aged and diseased cholangiocytes, and in human cholangiopathies. Knock-down of Twf1 in cholangiocytes reduced cell proliferation. Senescence and senescence-associated secretory phenotype marker expression increased in Twf1 knocked-down cholangiocytes following pro-proliferative and pro-senescent (10-day lipopolysaccharide) stimulation. In vivo, Samp8 mice showed increased biliary proliferation, fibrosis, and Twf1 protein expression level, whereas Twf1-/- had a tendency toward lower biliary proliferation and fibrosis following DDC administration compared with control animals. Conclusion: We identified Twf1 as an important mediator of both cholangiocyte adaptation to aging processes and response to injury. Our data suggest that disease and aging might share common intracellular pathways.
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Affiliation(s)
- Luca Maroni
- Department of Gastroenterology and Hepatology, Università Politecnica delle Marche, Ancona, Italy
| | - Claudio Pinto
- Department of Gastroenterology and Hepatology, Università Politecnica delle Marche, Ancona, Italy
| | - Debora Maria Giordano
- Department of Gastroenterology and Hepatology, Università Politecnica delle Marche, Ancona, Italy
| | - Stefania Saccomanno
- Department of Gastroenterology and Hepatology, Università Politecnica delle Marche, Ancona, Italy.,Institute of Pathological Anatomy and Histopathology, Università Politecnica delle Marche, Ancona, Italy
| | - Jesus M Banales
- Department of Liver and Gastrointestinal Diseases, Biodonostia Health Research Institute-Donostia University Hospital, Ikerbasque, CIBERehd, University of the Basque Country (UPV/EHU), San Sebastian, Spain
| | - Daniele Spallacci
- Department of Gastroenterology and Hepatology, Università Politecnica delle Marche, Ancona, Italy
| | | | - Fiorenza Orlando
- Advanced Technology Center for Aging Research, Experimental Animal Models for Aging Unit, Scientific Technological Area, IRCCS INRCA, Ancona, Italy
| | - Mauro Provinciali
- Advanced Technology Center for Aging Research, Experimental Animal Models for Aging Unit, Scientific Technological Area, IRCCS INRCA, Ancona, Italy
| | | | - Espen Melum
- Norwegian PSC Research Center, Department of Transplantation Medicine, Division of Surgery, Inflammatory Diseases and Transplantation, Oslo University Hospital, Rikshospitalet, Oslo, Norway.,Research Institute of Internal Medicine, Division of Surgery, Inflammatory Diseases and Transplantation, Oslo University Hospital, Rikshospitalet, Oslo, Norway
| | - Ibone Labiano
- Department of Liver and Gastrointestinal Diseases, Biodonostia Health Research Institute-Donostia University Hospital, Ikerbasque, CIBERehd, University of the Basque Country (UPV/EHU), San Sebastian, Spain
| | - Piotr Milkiewicz
- Liver and Internal Medicine Unit, Department of General, Transplant and L Surgery, Medical University of Warsaw, Warsaw, Poland
| | - Chiara Rychlicki
- Department of Gastroenterology and Hepatology, Università Politecnica delle Marche, Ancona, Italy
| | - Luciano Trozzi
- Department of Gastroenterology and Hepatology, Università Politecnica delle Marche, Ancona, Italy
| | - Marina Scarpelli
- Institute of Pathological Anatomy and Histopathology, Università Politecnica delle Marche, Ancona, Italy
| | - Antonio Benedetti
- Department of Gastroenterology and Hepatology, Università Politecnica delle Marche, Ancona, Italy
| | | | - Marco Marzioni
- Department of Gastroenterology and Hepatology, Università Politecnica delle Marche, Ancona, Italy
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40
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Gil-Iturbe E, Solas M, Cuadrado-Tejedo M, García-Osta A, Escoté X, Ramírez MJ, Lostao MP. GLUT12 Expression in Brain of Mouse Models of Alzheimer's Disease. Mol Neurobiol 2019; 57:798-805. [PMID: 31473905 DOI: 10.1007/s12035-019-01743-1] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2019] [Accepted: 08/19/2019] [Indexed: 12/12/2022]
Abstract
The brain depends on glucose as a source of energy. This implies the presence of glucose transporters, being GLUT1 and GLUT3 the most relevant. Expression of GLUT12 is found in mouse and human brain at low levels. We previously demonstrated GLUT12 upregulation in the frontal cortex of aged subjects that was even higher in aged Alzheimer's disease (AD) patients. However, the cause and the mechanism through which this increase occurs are still unknown. Here, we aimed to investigate whether the upregulation of GLUT12 in AD is related with aging or Aβ deposition in comparison with GLUT1, GLUT3, and GLUT4. In the frontal cortex of two amyloidogenic mouse models (Tg2576 and APP/PS1) GLUT12 levels were increased. Contrary, expression of GLUT1 and GLUT3 were decreased, while GLUT4 did not change. In aged mice and the senescence-accelerated model SAMP8, GLUT12 and GLUT4 were upregulated in comparison with young animals. GLUT1 and GLUT3 did not show significant changes with age. The effect of β-amyloid (Aβ) deposition was also evaluated in Aβ peptide i.c.v. injected mice. In the hippocampus, GLUT12 expression increased whereas GLUT4 was not modified. Consistent with the results in the amyloidogenic models, GLUT3 and GLUT1 were downregulated. In summary, Aβ increases GLUT12 protein expression in the brain pointing out a central role of the transporter in AD pathology and opening new perspectives for the treatment of this neurodegenerative disease.
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Affiliation(s)
- Eva Gil-Iturbe
- Department of Nutrition, Food Science and Physiology, University of Navarra, Irunlarrea 1, 31008, Pamplona, Spain.,Nutrition Research Centre, University of Navarra, Pamplona, Spain
| | - Maite Solas
- Department of Pharmacology and Toxicology, University of Navarra, Pamplona, Spain.,IdiSNA, Navarra Institute for Health Research, Pamplona, Spain
| | - Mar Cuadrado-Tejedo
- IdiSNA, Navarra Institute for Health Research, Pamplona, Spain.,Center for Applied Medical Research (CIMA), Division of Neurosciences, University of Navarra, Pamplona, Spain.,Department of Pathology, Anatomy and Physiology, University of Navarra, Pamplona, Spain
| | - Ana García-Osta
- IdiSNA, Navarra Institute for Health Research, Pamplona, Spain.,Center for Applied Medical Research (CIMA), Division of Neurosciences, University of Navarra, Pamplona, Spain
| | - Xavier Escoté
- Nutrition Research Centre, University of Navarra, Pamplona, Spain.,Unitat de Nutrició i Salut, Centre Tecnològic de Catalunya, Eurecat, Reus, Spain
| | - María Javier Ramírez
- Department of Pharmacology and Toxicology, University of Navarra, Pamplona, Spain.,IdiSNA, Navarra Institute for Health Research, Pamplona, Spain
| | - María Pilar Lostao
- Department of Nutrition, Food Science and Physiology, University of Navarra, Irunlarrea 1, 31008, Pamplona, Spain. .,Nutrition Research Centre, University of Navarra, Pamplona, Spain. .,IdiSNA, Navarra Institute for Health Research, Pamplona, Spain.
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41
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Li X, Inoue T, Hayashi M, Maejima H. Exercise enhances the expression of brain-derived neurotrophic factor in the hippocampus accompanied by epigenetic alterations in senescence-accelerated mice prone 8. Neurosci Lett 2019; 706:176-181. [DOI: 10.1016/j.neulet.2019.05.031] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2019] [Revised: 04/26/2019] [Accepted: 05/16/2019] [Indexed: 02/05/2023]
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42
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Gao S, Zhang X, Song Q, Liu J, Ji X, Wang P. POLD1 deficiency is involved in cognitive function impairment in AD patients and SAMP8 mice. Biomed Pharmacother 2019; 114:108833. [PMID: 30978525 DOI: 10.1016/j.biopha.2019.108833] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2019] [Revised: 03/27/2019] [Accepted: 03/29/2019] [Indexed: 02/03/2023] Open
Abstract
Age-related changes such as increased oxidative stress and DNA damage are important risk factors for Alzheimer's disease (AD). This study aimed to clarify the role of POLD1, the catalytic subunit of DNA polymerase δ, in neurodegeneration symptoms of AD. POLD1 expression levels were evaluated in patients with different neurodegenerative diseases by ELISA, RT-PCR and Western blot analysis. The impairment of cognitive ability in AD patients and senescence-accelerated mouse prone 8 (SAMP8) mice were evaluated by MMSE/MoCA score and Morris water maze (MWM) test. We found that serum concentration and expression levels of POLD1 in lymphocytes were reduced in AD patients. The cognitive impairment in AD patients and SAMP8 mice was associated with reduced POLD1 expression. In addition, POLD1 knockdown led to premature senescence and increased DNA damage in primary neuronal cells of SAMP8 mice. In conclusion, this is the first study suggesting that the deficiency of POLD1 may aggravate AD progression, and POLD1 is a potential diagnostic marker and therapeutic target for AD.
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Affiliation(s)
- Shichao Gao
- Clinical Laboratory of Xuanwu Hospital, Capital Medical University, Beijing, 100053, PR China
| | - Xiaomin Zhang
- Clinical Laboratory of Xuanwu Hospital, Capital Medical University, Beijing, 100053, PR China
| | - Qiao Song
- Clinical Laboratory of Xuanwu Hospital, Capital Medical University, Beijing, 100053, PR China
| | - Jing Liu
- Clinical Laboratory of Xuanwu Hospital, Capital Medical University, Beijing, 100053, PR China
| | - Xunming Ji
- Beijing Institute of Brain Disorders, Capital Medical University, Beijing, 100053, PR China
| | - Peichang Wang
- Clinical Laboratory of Xuanwu Hospital, Capital Medical University, Beijing, 100053, PR China; Beijing Institute of Brain Disorders, Capital Medical University, Beijing, 100053, PR China.
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43
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Griñán-Ferré C, Corpas R, Puigoriol-Illamola D, Palomera-Ávalos V, Sanfeliu C, Pallàs M. Understanding Epigenetics in the Neurodegeneration of Alzheimer's Disease: SAMP8 Mouse Model. J Alzheimers Dis 2019; 62:943-963. [PMID: 29562529 PMCID: PMC5870033 DOI: 10.3233/jad-170664] [Citation(s) in RCA: 51] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Epigenetics is emerging as the missing link among genetic inheritance, environmental influences, and body and brain health status. In the brain, specific changes in nucleic acids or their associated proteins in neurons and glial cells might imprint differential patterns of gene activation that will favor either cognitive enhancement or cognitive loss for more than one generation. Furthermore, derangement of age-related epigenetic signaling is appearing as a significant risk factor for illnesses of aging, including neurodegeneration and Alzheimer’s disease (AD). In addition, better knowledge of epigenetic mechanisms might provide hints and clues in the triggering and progression of AD. Intense research in experimental models suggests that molecular interventions for modulating epigenetic mechanisms might have therapeutic applications to promote cognitive maintenance through an advanced age. The SAMP8 mouse is a senescence model with AD traits in which the study of epigenetic alterations may unveil epigenetic therapies against the AD.
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Affiliation(s)
- Christian Griñán-Ferré
- Department of Pharmacology, Toxicology and Therapeutic Chemistry (Pharmacology Section) and Institute of Neuroscience, University of Barcelona and CIBERNED, Barcelona, Spain
| | - Rubén Corpas
- Institut d'Investigacions Biomèdiques de Barcelona (IIBB), CSIC, IDIBAPS and CIBERESP, Barcelona, Spain
| | - Dolors Puigoriol-Illamola
- Department of Pharmacology, Toxicology and Therapeutic Chemistry (Pharmacology Section) and Institute of Neuroscience, University of Barcelona and CIBERNED, Barcelona, Spain
| | - Verónica Palomera-Ávalos
- Department of Pharmacology, Toxicology and Therapeutic Chemistry (Pharmacology Section) and Institute of Neuroscience, University of Barcelona and CIBERNED, Barcelona, Spain
| | - Coral Sanfeliu
- Institut d'Investigacions Biomèdiques de Barcelona (IIBB), CSIC, IDIBAPS and CIBERESP, Barcelona, Spain
| | - Mercè Pallàs
- Department of Pharmacology, Toxicology and Therapeutic Chemistry (Pharmacology Section) and Institute of Neuroscience, University of Barcelona and CIBERNED, Barcelona, Spain
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44
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Wasai M, Nonaka H, Murata M, Kitamura R, Sato Y, Tachibana H. Long-term dietary supplementation with the green tea cultivar Sunrouge prevents age-related cognitive decline in the senescence-accelerated mouse Prone8. Biosci Biotechnol Biochem 2019; 83:339-347. [DOI: 10.1080/09168451.2018.1530093] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
ABSTRACT
A majority of the potential health benefits of green tea, including the potential to prevent cognitive decline, have been attributed to epigallocatechin gallate (EGCG). Sunrouge is a green tea cultivar that contains EGCG and several other bioactive components such as quercetin, myricetin, cyanidin and delphinidin. We compared the effects of Sunrouge and Yabukita, the most popular Japanese green tea cultivar, on cognitive function in the senescence-accelerated mouse Prone8. These mice were fed an experimental diet containing Sunrouge extract (SRE) or Yabukita extract (YBE). SRE feeding significantly prevented cognitive decline, whereas YBE feeding had little effect. Moreover, SRE feeding prevented elevation of the amyloid-β42 level while improving the gene expression of neprilysin and decreasing beta-site APP-cleaving enzyme 1 in the brain. These preventive effects of SRE against cognitive decline were attributed to the characteristic composition of Sunrouge and strongly suggest that consumption of this cultivar could protect against age-related cognitive decline.
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Affiliation(s)
- Masafumi Wasai
- Research Laboratory, Nippon Paper Industries Co., Ltd., Tokyo, Japan
- Department of Bioscience and Biotechnology, Faculty of Agriculture, Kyushu University, Fukuoka, Japan
| | - Haruna Nonaka
- Department of Bioscience and Biotechnology, Faculty of Agriculture, Kyushu University, Fukuoka, Japan
| | - Motoki Murata
- Department of Bioscience and Biotechnology, Faculty of Agriculture, Kyushu University, Fukuoka, Japan
| | - Ryo Kitamura
- Department of Bioscience and Biotechnology, Faculty of Agriculture, Kyushu University, Fukuoka, Japan
| | - Yuka Sato
- Department of Bioscience and Biotechnology, Faculty of Agriculture, Kyushu University, Fukuoka, Japan
| | - Hirofumi Tachibana
- Department of Bioscience and Biotechnology, Faculty of Agriculture, Kyushu University, Fukuoka, Japan
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45
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Sato T, Muramatsu N, Ito Y, Yamamoto Y, Nagasawa T. L-Lysine Attenuates Hepatic Steatosis in Senescence-Accelerated Mouse Prone 8 Mice. J Nutr Sci Vitaminol (Tokyo) 2018; 64:192-199. [PMID: 29962430 DOI: 10.3177/jnsv.64.192] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
Non-alcoholic hepatic steatosis is a phenotype of metabolic syndrome, and aging is a risk factor for this condition. Senescence-accelerated mouse prone 8 (SAMP8) is a murine model for studying aging-associated disorders. We here investigated the effect of dietary supplementation with L-lysine (Lys) on non-alcoholic hepatic steatosis in SAMP8 mice. Triglyceride (TG) and cholesterol (Chol) accumulated in the livers of SAMP8 mice fed a standard diet at 36 wk of age. However, intake of a Lys-rich diet for 2 mo prevented the accumulation of TG and Chol in the liver. Plasma alanine aminotransferase activity, an index of liver injury, was decreased by Lys. The mRNA expression levels of peroxisome proliferator-activated receptor gamma coactivator 1-α and carnitine palmitoyltransferase 1a, which regulate β-oxidation, were increased in the livers of SAMP8 mice fed the Lys-rich diet. Taken together, our study suggests dietary intake of Lys prevents hepatic steatosis by stimulating β-oxidation in SAMP8 mice.
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Affiliation(s)
- Tomonori Sato
- Department of Bioresources Science, The United Graduate School of Agricultural Sciences, Iwate University
| | - Nao Muramatsu
- Department of Biological Chemistry and Food Science, Graduate School of Agriculture, Iwate University
| | - Yoshiaki Ito
- Department of Bioresources Science, The United Graduate School of Agricultural Sciences, Iwate University.,Department of Biological Chemistry and Food Science, Graduate School of Agriculture, Iwate University
| | - Yoshio Yamamoto
- Laboratory of Veterinary Anatomy and Cell Biology, Faculty of Agriculture, Iwate University.,Department of Basic Veterinary Science, United Graduate School of Veterinary Science, Gifu University
| | - Takashi Nagasawa
- Department of Bioresources Science, The United Graduate School of Agricultural Sciences, Iwate University.,Department of Biological Chemistry and Food Science, Graduate School of Agriculture, Iwate University
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46
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Narukawa M, Kamiyoshihara A, Kawae M, Kohta R, Misaka T. Analysis of aging-dependent changes in taste sensitivities of the senescence-accelerated mouse SAMP1. Exp Gerontol 2018; 113:64-73. [DOI: 10.1016/j.exger.2018.09.016] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2018] [Revised: 08/29/2018] [Accepted: 09/19/2018] [Indexed: 11/15/2022]
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47
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Combination of Coenzyme Q 10 Intake and Moderate Physical Activity Counteracts Mitochondrial Dysfunctions in a SAMP8 Mouse Model. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2018; 2018:8936251. [PMID: 30473743 PMCID: PMC6220380 DOI: 10.1155/2018/8936251] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/12/2018] [Accepted: 08/29/2018] [Indexed: 12/11/2022]
Abstract
Aging skeletal muscles are characterized by a progressive decline in muscle mass and muscular strength. Such muscular dysfunctions are usually associated with structural and functional alterations of skeletal muscle mitochondria. The senescence-accelerated mouse-prone 8 (SAMP8) model, characterized by premature aging and high degree of oxidative stress, was used to investigate whether a combined intervention with mild physical exercise and ubiquinol supplementation was able to improve mitochondrial function and preserve skeletal muscle health during aging. 5-month-old SAMP8 mice, in a presarcopenia phase, have been randomly divided into 4 groups (n = 10): untreated controls and mice treated for two months with either physical exercise (0.5 km/h, on a 5% inclination, for 30 min, 5/7 days per week), ubiquinol 10 (500 mg/kg/day), or a combination of exercise and ubiquinol. Two months of physical exercise significantly increased mitochondrial damage in the muscles of exercised mice when compared to controls. On the contrary, ubiquinol and physical exercise combination significantly improved the overall status of the skeletal muscle, preserving mitochondrial ultrastructure and limiting mitochondrial depolarization induced by physical exercise alone. Accordingly, combination treatment while promoting mitochondrial biogenesis lowered autophagy and caspase 3-dependent apoptosis. In conclusion, the present study shows that ubiquinol supplementation counteracts the deleterious effects of physical exercise-derived ROS improving mitochondrial functionality in an oxidative stress model, such as SAMP8 in the presarcopenia phase.
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48
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Takeshita H, Yamamoto K, Nozato S, Takeda M, Fukada SI, Inagaki T, Tsuchimochi H, Shirai M, Nozato Y, Fujimoto T, Imaizumi Y, Yokoyama S, Nagasawa M, Hamano G, Hongyo K, Kawai T, Hanasaki-Yamamoto H, Takeda S, Takahashi T, Akasaka H, Itoh N, Takami Y, Takeya Y, Sugimoto K, Nakagami H, Rakugi H. Angiotensin-converting enzyme 2 deficiency accelerates and angiotensin 1-7 restores age-related muscle weakness in mice. J Cachexia Sarcopenia Muscle 2018; 9:975-986. [PMID: 30207087 PMCID: PMC6204583 DOI: 10.1002/jcsm.12334] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/31/2018] [Revised: 06/02/2018] [Accepted: 06/21/2018] [Indexed: 12/21/2022] Open
Abstract
BACKGROUND A pharmacologic strategy for age-related muscle weakness is desired to improve mortality and disability in the elderly. Angiotensin-converting enzyme 2 (ACE2) cleaves angiotensin II into angiotensin 1-7, a peptide known to protect against acute and chronic skeletal muscle injury in rodents. Since physiological aging induces muscle weakness via mechanisms distinct from other muscle disorders, the role of ACE2-angiotensin 1-7 in age-related muscle weakness remains undetermined. Here, we investigated whether deletion of ACE2 alters the development of muscle weakness by aging and whether angiotensin 1-7 reverses muscle weakness in older mice. METHODS After periodic measurement of grip strength and running distance in male ACE2KO and wild-type mice until 24 months of age, we infused angiotensin 1-7 or vehicle for 4 weeks, and measured grip strength, and excised tissues. Tissues were also excised from younger (3-month-old) and middle-aged (15-month-old) mice. Microarray analysis of RNA was performed using tibialis anterior (TA) muscles from middle-aged mice, and some genes were further tested using RT-PCR. RESULTS Grip strength of ACE2KO mice was reduced at 6 months and was persistently lower than that of wild-type mice (p < 0.01 at 6, 12, 18, and 24-month-old). Running distance of ACE2KO mice was shorter than that of wild-type mice only at 24 months of age [371 ± 26 vs. 479 ± 24 (m), p < 0.01]. Angiotensin 1-7 improved grip strength in both types of older mice, with larger effects observed in ACE2KO mice (% increase, 3.8 ± 1.5 and 13.3 ± 3.1 in wild type and ACE2KO mice, respectively). Older, but not middle-aged ACE2KO mice had higher oxygen consumption assessed by a metabolic cage than age-matched wild-type mice. Angiotensin 1-7 infusion modestly increased oxygen consumption in older mice. There was no difference in a wheel-running activity or glucose tolerance between ACE2KO and wild-type mice and between mice with vehicle and angiotensin 1-7 infusion. Analysis of TA muscles revealed that p16INK4a, a senescence-associated gene, and central nuclei of myofibers increased in middle-aged, but not younger ACE2KO mice. p16INK4a and central nuclei increased in TA muscles of older wild-type mice, but the differences between ACE2KO and wild-type mice remained significant (p < 0.01). Angiotensin 1-7 did not alter the expression of p16INK4a or central nuclei in TA muscles of both types of mice. Muscle ACE2 expression of wild-type mice was the lowest at middle age (2.6 times lower than younger age, p < 0.05). CONCLUSIONS Deletion of ACE2 induced the early manifestation of muscle weakness with signatures of muscle senescence. Angiotensin 1-7 improved muscle function in older mice, supporting future application of the peptide or its analogues in the treatment of muscle weakness in the elderly population.
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Affiliation(s)
- Hikari Takeshita
- Department of Geriatric and General Medicine, Graduate School of Medicine, Osaka University, Suita, Osaka, Japan
| | - Koichi Yamamoto
- Department of Geriatric and General Medicine, Graduate School of Medicine, Osaka University, Suita, Osaka, Japan
| | - Satoko Nozato
- Department of Geriatric and General Medicine, Graduate School of Medicine, Osaka University, Suita, Osaka, Japan
| | - Masao Takeda
- Department of Geriatric and General Medicine, Graduate School of Medicine, Osaka University, Suita, Osaka, Japan
| | - So-Ichiro Fukada
- Laboratory of Molecular and Cellular Physiology, Graduate School of Pharmaceutical Sciences, Osaka University, Suita, Osaka, Japan
| | - Tadakatsu Inagaki
- Department of Cardiac Physiology, National Cerebral and Cardiovascular Center Research Institute, Suita, Osaka, Japan
| | - Hirotsugu Tsuchimochi
- Department of Cardiac Physiology, National Cerebral and Cardiovascular Center Research Institute, Suita, Osaka, Japan
| | - Mikiyasu Shirai
- Department of Cardiac Physiology, National Cerebral and Cardiovascular Center Research Institute, Suita, Osaka, Japan
| | - Yoichi Nozato
- Department of Geriatric and General Medicine, Graduate School of Medicine, Osaka University, Suita, Osaka, Japan
| | - Taku Fujimoto
- Department of Geriatric and General Medicine, Graduate School of Medicine, Osaka University, Suita, Osaka, Japan
| | - Yuki Imaizumi
- Department of Geriatric and General Medicine, Graduate School of Medicine, Osaka University, Suita, Osaka, Japan
| | - Serina Yokoyama
- Department of Geriatric and General Medicine, Graduate School of Medicine, Osaka University, Suita, Osaka, Japan
| | - Motonori Nagasawa
- Department of Geriatric and General Medicine, Graduate School of Medicine, Osaka University, Suita, Osaka, Japan
| | - Go Hamano
- Department of Geriatric and General Medicine, Graduate School of Medicine, Osaka University, Suita, Osaka, Japan
| | - Kazuhiro Hongyo
- Department of Geriatric and General Medicine, Graduate School of Medicine, Osaka University, Suita, Osaka, Japan
| | - Tatsuo Kawai
- Department of Geriatric and General Medicine, Graduate School of Medicine, Osaka University, Suita, Osaka, Japan
| | - Hiroko Hanasaki-Yamamoto
- Department of Geriatric and General Medicine, Graduate School of Medicine, Osaka University, Suita, Osaka, Japan
| | - Shuko Takeda
- Department of Clinical Gene Therapy, Graduate School of Medicine, Osaka University, Suita, Osaka, Japan
| | - Toshimasa Takahashi
- Department of Geriatric and General Medicine, Graduate School of Medicine, Osaka University, Suita, Osaka, Japan
| | - Hiroshi Akasaka
- Department of Geriatric and General Medicine, Graduate School of Medicine, Osaka University, Suita, Osaka, Japan
| | - Norihisa Itoh
- Department of Geriatric and General Medicine, Graduate School of Medicine, Osaka University, Suita, Osaka, Japan
| | - Yoichi Takami
- Department of Geriatric and General Medicine, Graduate School of Medicine, Osaka University, Suita, Osaka, Japan
| | - Yasushi Takeya
- Department of Geriatric and General Medicine, Graduate School of Medicine, Osaka University, Suita, Osaka, Japan
| | - Ken Sugimoto
- Department of Geriatric and General Medicine, Graduate School of Medicine, Osaka University, Suita, Osaka, Japan
| | - Hironori Nakagami
- Department of Health Development and Medicine, Graduate School of Medicine, Osaka University, Suita, Osaka, Japan
| | - Hiromi Rakugi
- Department of Geriatric and General Medicine, Graduate School of Medicine, Osaka University, Suita, Osaka, Japan
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49
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Campillo S, Rancan L, Paredes SD, Higuera M, Izquierdo A, García C, Forman K, Tresguerres JA, Vara E. Effect of treatment with xanthohumol on cardiological alterations secondary to ageing. J Funct Foods 2018. [DOI: 10.1016/j.jff.2018.07.059] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
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50
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Lam V, Takechi R, Albrecht MA, D'Alonzo ZJ, Graneri L, Hackett MJ, Coulson S, Fimognari N, Nesbit M, Mamo JCL. Longitudinal Performance of Senescence Accelerated Mouse Prone-Strain 8 (SAMP8) Mice in an Olfactory-Visual Water Maze Challenge. Front Behav Neurosci 2018; 12:174. [PMID: 30210312 PMCID: PMC6121094 DOI: 10.3389/fnbeh.2018.00174] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2018] [Accepted: 07/27/2018] [Indexed: 11/13/2022] Open
Abstract
Morris water maze (MWM) is widely used to assess cognitive deficits in pre-clinical rodent models. Latency time to reach escape platform is frequently reported, but may be confounded by deficits in visual acuity, or differences in locomotor activity. This study compared performance of Senescence Accelerated Mouse Prone-Strain 8 (SAMP8) and control Senescence Accelerated Mouse Resistant-Strain 1 (SAMR1) mice in classical MWM, relative to performance in a newly developed olfactory-visual maze testing protocol. Performance indicated as the escape time to rescue platform for classical MWM testing showed that SAMP8 mice as young as 6 weeks of age did poorly relative to age-matched SAMR1 mice. The olfactory-visual maze challenge described better discriminated SAMP8 vs. SAMR1 mice than classical MWM testing, based on latency time measures. Consideration of the distance traveled rather than latency time in the classical MWM found no treatment effects between SAMP8 and SAMR1 at 40 weeks of age and the olfactory-visual measures of performance confirmed the classical MWM findings. Longitudinal (repeat) assessment of SAMP8 and SAMR1 performance at 6, 20, 30, and 40 weeks of age in the olfactory-visual testing protocol showed no age-associated deficits in SAMP8 mice to the last age end-point indicated. Collectively, the results from this study suggest the olfactory-visual testing protocol may be advantageous compared to classical MWM as it avoids potential confounders of visual impairment in some strains of mice and indeed, may offer insight into cognitive and behavioral deficits that develop with advanced age in the widely used SAMP8 murine model.
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Affiliation(s)
- Virginie Lam
- Curtin Health Innovation Research Institute, Faculty of Health Sciences, Curtin University, Perth, WA, Australia.,School of Public Health, Faculty of Health Sciences, Curtin University, Perth, WA, Australia
| | - Ryusuke Takechi
- Curtin Health Innovation Research Institute, Faculty of Health Sciences, Curtin University, Perth, WA, Australia.,School of Public Health, Faculty of Health Sciences, Curtin University, Perth, WA, Australia
| | - Matthew A Albrecht
- Curtin Health Innovation Research Institute, Faculty of Health Sciences, Curtin University, Perth, WA, Australia.,School of Public Health, Faculty of Health Sciences, Curtin University, Perth, WA, Australia
| | - Zachary John D'Alonzo
- Curtin Health Innovation Research Institute, Faculty of Health Sciences, Curtin University, Perth, WA, Australia.,School of Pharmacy and Biomedical Sciences, Faculty of Health Sciences, Curtin University, Perth, WA, Australia
| | - Liam Graneri
- Curtin Health Innovation Research Institute, Faculty of Health Sciences, Curtin University, Perth, WA, Australia.,School of Pharmacy and Biomedical Sciences, Faculty of Health Sciences, Curtin University, Perth, WA, Australia
| | - Mark J Hackett
- Curtin Health Innovation Research Institute, Faculty of Health Sciences, Curtin University, Perth, WA, Australia.,School of Molecular and Life Sciences, Faculty of Science and Engineering, Curtin University, Perth, WA, Australia
| | - Stephanie Coulson
- Curtin Health Innovation Research Institute, Faculty of Health Sciences, Curtin University, Perth, WA, Australia.,School of Public Health, Faculty of Health Sciences, Curtin University, Perth, WA, Australia
| | - Nicholas Fimognari
- Curtin Health Innovation Research Institute, Faculty of Health Sciences, Curtin University, Perth, WA, Australia.,School of Pharmacy and Biomedical Sciences, Faculty of Health Sciences, Curtin University, Perth, WA, Australia
| | - Michael Nesbit
- Curtin Health Innovation Research Institute, Faculty of Health Sciences, Curtin University, Perth, WA, Australia.,School of Pharmacy and Biomedical Sciences, Faculty of Health Sciences, Curtin University, Perth, WA, Australia
| | - John C L Mamo
- Curtin Health Innovation Research Institute, Faculty of Health Sciences, Curtin University, Perth, WA, Australia.,School of Public Health, Faculty of Health Sciences, Curtin University, Perth, WA, Australia
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