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Fukui K, You F, Kato Y, Yuzawa S, Kishimoto A, Hara T, Kanome Y, Harakawa Y, Yoshikawa T, Inufusa H. A mixed antioxidant supplement improves cognitive function, and coordination in aged mice. J Clin Biochem Nutr 2024; 74:119-126. [PMID: 38510681 PMCID: PMC10948352 DOI: 10.3164/jcbn.23-71] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2023] [Accepted: 10/09/2023] [Indexed: 03/22/2024] Open
Abstract
Accumulation of oxidative damage increases the risk of several disorders. To prevent these diseases, people consume supplements. However, there is little evidence of the impact of supplement intake on cognitive function. Recently, frailty and sarcopenia have become serious issues, and these phenomena include a risk of mild cognitive impairment. In this study, aged mice were fed the combination supplement and cognitive and motor functions were measured. Following 1 month of treatment with the supplement, significant improvements in cognitive function and neuromuscular coordination were observed. Following 2 weeks of treadmill training, treatment with the supplement dramatically increased running distance compared to that in untreated normal aged mice. Serum indices such as triglyceride and total cholesterol were significantly decreased in the supplement-treated aged mice compared to untreated aged mice. These results indicate that the combination supplement may play a role in maintaining cognitive function, coordination ability and improving lipid metabolism.
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Affiliation(s)
- Koji Fukui
- Molecular Cell Biology Laboratory, Department of Bioscience and Engineering, College of System Engineering and Science, Shibaura Institute of Technology, 307 Fukasaku, Minuma-ku, Saitama 337-8570, Japan
| | - Fukka You
- Division of Anti-oxidant Research, Life Science Research Center, Gifu University, 1-1 Yanagito, Gifu 501-1194, Japan
- Anti-oxidant Research Laboratory, Louis Pasteur Center for Medical Research, 103-5 Tanakamonzen-cho, Sakyo-ku, Kyoto 606-8225, Japan
| | - Yugo Kato
- Molecular Cell Biology Laboratory, Department of Bioscience and Engineering, College of System Engineering and Science, Shibaura Institute of Technology, 307 Fukasaku, Minuma-ku, Saitama 337-8570, Japan
| | - Shuya Yuzawa
- Molecular Cell Biology Laboratory, Department of Bioscience and Engineering, College of System Engineering and Science, Shibaura Institute of Technology, 307 Fukasaku, Minuma-ku, Saitama 337-8570, Japan
| | - Ayuta Kishimoto
- Molecular Cell Biology Laboratory, Department of Bioscience and Engineering, College of System Engineering and Science, Shibaura Institute of Technology, 307 Fukasaku, Minuma-ku, Saitama 337-8570, Japan
| | - Takuma Hara
- Molecular Cell Biology Laboratory, Department of Bioscience and Engineering, College of System Engineering and Science, Shibaura Institute of Technology, 307 Fukasaku, Minuma-ku, Saitama 337-8570, Japan
| | - Yuki Kanome
- Molecular Cell Biology Laboratory, Department of Bioscience and Engineering, College of System Engineering and Science, Shibaura Institute of Technology, 307 Fukasaku, Minuma-ku, Saitama 337-8570, Japan
| | - Yoshiaki Harakawa
- Division of Anti-oxidant Research, Life Science Research Center, Gifu University, 1-1 Yanagito, Gifu 501-1194, Japan
| | - Toshikazu Yoshikawa
- Louis Pasteur Center for Medical Research, 103-5 Tanakamonzen-cho, Sakyo-ku, Kyoto 606-8225, Japan
- Kyoto Prefectural University of Medicine, Kajii-cho, Kawaramachi-Hirokoji, Kamigyo-ku, Kyoto 602-8566, Japan
| | - Haruhiko Inufusa
- Division of Anti-oxidant Research, Life Science Research Center, Gifu University, 1-1 Yanagito, Gifu 501-1194, Japan
- Anti-oxidant Research Laboratory, Louis Pasteur Center for Medical Research, 103-5 Tanakamonzen-cho, Sakyo-ku, Kyoto 606-8225, Japan
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Fukui K, You F, Kato Y, Yuzawa S, Kishimoto A, Hara T, Kanome Y, Harakawa Y, Yoshikawa T. A Blended Vitamin Supplement Improves Spatial Cognitive and Short-Term Memory in Aged Mice. Int J Mol Sci 2024; 25:2804. [PMID: 38474050 DOI: 10.3390/ijms25052804] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2024] [Revised: 02/14/2024] [Accepted: 02/24/2024] [Indexed: 03/14/2024] Open
Abstract
Although many types of antioxidant supplements are available, the effect is greater if multiple types are taken simultaneously rather than one type. However, it is difficult to know which type and how much to take, as it is possible to take too many of some vitamins. As it is difficult for general consumers to make this choice, it is important to provide information based on scientific evidence. This study investigated the various effects of continuous administration of a blended supplement to aging mice. In 18-month-old C57BL/6 mice given a blended supplement ad libitum for 1 month, spatial cognition and short-term memory in the Morris water maze and Y-maze improved compared with the normal aged mice (spontaneous alternative ratio, normal aged mice, 49.5%, supplement-treated mice, 68.67%, p < 0.01). No significant differences in brain levels of secreted neurotrophic factors, such as nerve growth factor and brain-derived neurotrophic factor, were observed between these two groups. In treadmill durability tests before and after administration, the rate of increase in running distance after administration was significantly higher than that of the untreated group (increase rate, normal aged mice, 91.17%, supplement-treated aged mice, 111.4%, p < 0.04). However, training had no reinforcing effect, and post-mortem serum tests showed a significant decrease in aspartate aminotransferase, alanine aminotransferase, and total cholesterol values. These results suggest continuous intake of a blended supplement may improve cognitive function and suppress age-related muscle decline.
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Affiliation(s)
- Koji Fukui
- Molecular Cell Biology Laboratory, Department of Bioscience and Engineering, College of System Engineering and Science, Shibaura Institute of Technology, 307 Fukasaku, Minuma-ku, Saitama 337-8570, Japan
| | - Fukka You
- Division of Anti-Oxidant Research, Life Science Research Center, Gifu University, 1-1 Yanagito, Gifu 501-1194, Japan
- Antioxidant Research, Louis Pasteur Center for Medical Research, 103-5 Tanakamonzen-cho, Sakyo-ku, Kyoto 606-8225, Japan
| | - Yugo Kato
- Molecular Cell Biology Laboratory, Department of Bioscience and Engineering, College of System Engineering and Science, Shibaura Institute of Technology, 307 Fukasaku, Minuma-ku, Saitama 337-8570, Japan
| | - Shuya Yuzawa
- Molecular Cell Biology Laboratory, Department of Bioscience and Engineering, College of System Engineering and Science, Shibaura Institute of Technology, 307 Fukasaku, Minuma-ku, Saitama 337-8570, Japan
| | - Ayuta Kishimoto
- Molecular Cell Biology Laboratory, Department of Bioscience and Engineering, College of System Engineering and Science, Shibaura Institute of Technology, 307 Fukasaku, Minuma-ku, Saitama 337-8570, Japan
| | - Takuma Hara
- Molecular Cell Biology Laboratory, Department of Bioscience and Engineering, College of System Engineering and Science, Shibaura Institute of Technology, 307 Fukasaku, Minuma-ku, Saitama 337-8570, Japan
| | - Yuki Kanome
- Molecular Cell Biology Laboratory, Department of Bioscience and Engineering, College of System Engineering and Science, Shibaura Institute of Technology, 307 Fukasaku, Minuma-ku, Saitama 337-8570, Japan
| | - Yoshiaki Harakawa
- Division of Anti-Oxidant Research, Life Science Research Center, Gifu University, 1-1 Yanagito, Gifu 501-1194, Japan
| | - Toshikazu Yoshikawa
- Antioxidant Research, Louis Pasteur Center for Medical Research, 103-5 Tanakamonzen-cho, Sakyo-ku, Kyoto 606-8225, Japan
- Kyoto Prefectural University of Medicine, Kajii-cho, Kawaramachi-Hirokoji, Kamigyo-ku, Kyoto 602-8566, Japan
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Huang W, Bates R, Zou X, Queen NJ, Mo X, Arnold WD, Ray A, Owendoff G, Cao L. Environmental Enrichment Improves Motor Function and Muscle Transcriptome of Aged Mice. Adv Biol (Weinh) 2024; 8:e2300148. [PMID: 37518850 PMCID: PMC10825065 DOI: 10.1002/adbi.202300148] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2023] [Revised: 06/29/2023] [Indexed: 08/01/2023]
Abstract
Aging results in the progressive decline of muscle strength. Interventions to maintain muscle strength may mitigate the age-related loss of physical function, thus maximizing health span. The work on environmental enrichment (EE), an experimental paradigm recapitulating aspects of an active lifestyle, has revealed EE-induced metabolic benefits mediated by a brain-fat axis across the lifespan of mice. EE initiated at 18-month of age shows a trend toward an increased mean lifespan. While previous work described EE's influences on the aging dynamics of several central-peripheral processes, its influence on muscle remained understudied. Here, the impact of EE is investigated on motor function, neuromuscular physiology, and the skeletal muscle transcriptome. EE is initiated in 20-month-old mice for a five-month period. EE mice exhibit greater relative lean mass that is associated with improved mobility and hindlimb grip strength. Transcriptomic profiling of muscle tissue reveals an EE-associated enrichment of gene expression within several metabolic pathways related to oxidative phosphorylation and the TCA cycle. Many mitochondrial-related genes-several of which participate in the electron transport chain-are upregulated. Stress-responsive signaling pathways are downregulated because of EE. The results suggest that EE improves motor function-possibly through preservation of mitochondrial function-even late in life.
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Affiliation(s)
- Wei Huang
- Department of Cancer Biology & Genetics, College of Medicine, The Ohio State University, Columbus, OH 43210, USA
- The Ohio State University Comprehensive Cancer Center, Columbus, OH 43210, USA
| | - Rhiannon Bates
- The Ohio State University Comprehensive Cancer Center, Columbus, OH 43210, USA
| | - Xunchang Zou
- Department of Cancer Biology & Genetics, College of Medicine, The Ohio State University, Columbus, OH 43210, USA
- The Ohio State University Comprehensive Cancer Center, Columbus, OH 43210, USA
| | - Nicholas J. Queen
- Department of Cancer Biology & Genetics, College of Medicine, The Ohio State University, Columbus, OH 43210, USA
- The Ohio State University Comprehensive Cancer Center, Columbus, OH 43210, USA
| | - Xiaokui Mo
- Department of Biomedical Informatics, College of Medicine, The Ohio State University, Columbus, OH 43210, USA
| | - W. David Arnold
- Department of Neurology, College of Medicine, The Ohio State University, Columbus, OH 43210, USA
- Department of Physiology and Cell Biology, College of Medicine, The Ohio State University, Columbus, OH 43210, USA
- Department of Neuroscience, College of Medicine, The Ohio State University, Columbus, OH 43210, USA
| | - Alissa Ray
- Department of Neurology, College of Medicine, The Ohio State University, Columbus, OH 43210, USA
| | - Gregory Owendoff
- Department of Neurology, College of Medicine, The Ohio State University, Columbus, OH 43210, USA
| | - Lei Cao
- Department of Cancer Biology & Genetics, College of Medicine, The Ohio State University, Columbus, OH 43210, USA
- The Ohio State University Comprehensive Cancer Center, Columbus, OH 43210, USA
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Bai S, Kang Y, Chen W, Xie H, Zhang L, Lv M, Wang J, Wu J, Zhao W. Comparison of Immunogenicity of Alum and MF59-Like Adjuvant Inactivated SARS-CoV-2 Vaccines Against SARS-CoV-2 Variants in Elderly Mice. Viral Immunol 2023; 36:526-533. [PMID: 37625037 DOI: 10.1089/vim.2023.0041] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/27/2023] Open
Abstract
The constant emergence of variants of concern (VOCs) challenges the effectiveness of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) vaccines over time. This is most concerning in clinically vulnerable groups, such as older adults. This study aimed to determine whether the novel adjuvant MF59-like adjuvant can improve cross-immunity against VOCs in aged animals. We compared the humoral and cellular immune responses of Alum and MF59-like adjuvant-formulated inactivated coronavirus disease 2019 (COVID-19) vaccines against prototype and SARS-CoV-2 variants in 18-month-old mice. Our results showed that two doses of the MF59-like adjuvant inactivated vaccines induced more robust binding and pseudo-neutralizing antibodies (Nabs) against the SARS-CoV-2 prototype and VOCs compared to the Alum-adjuvant and reduced Omicron variant escapes from Nabs in aged mice. The humoral immune responses of inactivated vaccines were much lower against VOCs than the prototype with or without adjuvants; however, T cell responses against VOCs were not affected. In addition, Alum and MF59-like adjuvanted vaccines induced Th1-biased immune responses with increased interferon-gamma and interleukin (IL)-2 secreting cells, and hardly detectable IL-4 and IL-5. Furthermore, the MF59-like adjuvant vaccine produced 1.9-2.0 times higher cross-reactive T cell responses against the SARS-CoV-2 prototype and VOCs than the Alum adjuvant. Therefore, our data have important implications for vaccine adjuvant strategies against SARS-CoV-2 VOCs in older adults.
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Affiliation(s)
- Shuang Bai
- Beijing Center for Disease Prevention and Control, Beijing Research Center for Respiratory Infectious Diseases, Beijing, China
| | - Yanli Kang
- Beijing Center for Disease Prevention and Control, Beijing Research Center for Respiratory Infectious Diseases, Beijing, China
| | - Weixin Chen
- Beijing Center for Disease Prevention and Control, Beijing Research Center for Respiratory Infectious Diseases, Beijing, China
| | - Hui Xie
- Beijing Center for Disease Prevention and Control, Beijing Research Center for Respiratory Infectious Diseases, Beijing, China
| | - Lichi Zhang
- Beijing Center for Disease Prevention and Control, Beijing Research Center for Respiratory Infectious Diseases, Beijing, China
| | - Min Lv
- Beijing Center for Disease Prevention and Control, Beijing Research Center for Respiratory Infectious Diseases, Beijing, China
| | - Jian Wang
- Beijing Center for Disease Prevention and Control, Beijing Research Center for Respiratory Infectious Diseases, Beijing, China
| | - Jiang Wu
- Beijing Center for Disease Prevention and Control, Beijing Research Center for Respiratory Infectious Diseases, Beijing, China
| | - Wei Zhao
- Beijing Center for Disease Prevention and Control, Beijing Research Center for Respiratory Infectious Diseases, Beijing, China
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Liu L, Liu M, Zhang D, Song Z, Zhang H. DHT inhibits REDOX damage and neuroinflammation to reduce PND occurrence in aged mice via mmu_circ_0001442/miR-125a-3p/NUFIP2 axis. Brain Behav 2023; 13:e3180. [PMID: 37550899 PMCID: PMC10570480 DOI: 10.1002/brb3.3180] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/11/2023] [Revised: 07/10/2023] [Accepted: 07/12/2023] [Indexed: 08/09/2023] Open
Abstract
BACKGROUND Perioperative neurocognitive disorder (PND) is the main cause of poor postoperative recovery in elderly patients with age-related reductions in androgen levels. However, the underlying mechanisms have not been completely elucidated. METHODS A mouse model of PND was constructed using abdominal surgery. Dihydrotestosterone (DHT), as the primary androgen, can improve the cognitive function of mice with PNDs by reducing REDOX damage. To clarify the role of circular RNA (circRNA) in DHT in improving cognitive function in mice with PND, circRNA sequencing was performed to analyze the expression of circRNA in the hippocampus of mice. RESULTS We confirmed that mmu_circ_0001442 is the primary circRNA responsive to DHT stimulation in mice with PND. The mmu_circ_0001442/miR-125a-3p/NUFIP2 axis was predicted and constructed according to the analysis of databases, including pita, miRanda, TargetScan, miRDB, micro-CDS, PolymiRTS, and TarBase v.8. Subsequently, the axis was verified by qPCR and double-luciferase reporter gene assays. In vitro, we found that DHT rarely had an effect on the growth of BV2 cells using the CCK-8 assay, but it attenuated the cytotoxic effect of lipopolysaccharide (LPS) on BV2 cells. In addition, we found that LPS stimulation promoted the release of proinflammatory cytokines, including IL-6 and TNF-α, in BV2 cells, whereas mmu_circ_0001442 knockdown and NUFIP2 knockdown partially abrogated this effect. CONCLUSIONS Taken together, DHT inhibited REDOX damage and neuroinflammation in the hippocampus to alleviate cognitive disorders in mice with PNDs via activation of the mmu_circ_0001442/miR-125a-3p/NUFIP2 axis. This study provides a novel rationale for developing DHT as a potential therapeutic agent for PND prevention.
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Affiliation(s)
- Li Liu
- Department of OncologyJiangxi Provincial People's HospitalNanchangJiangxiP. R. China
| | - Mei Liu
- Department of AnesthesiologyThe First Affiliated Hospital of Nanchang UniversityNanchangJiangxiP. R. China
| | - Daying Zhang
- Department of Pain ManagementThe First Affiliated Hospital of Nanchang UniversityNanchangJiangxiP. R. China
| | - Zhiping Song
- Department of AnesthesiologyThe First Affiliated Hospital of Nanchang UniversityNanchangJiangxiP. R. China
| | - Huaigen Zhang
- Department of AnesthesiologyThe First Affiliated Hospital of Nanchang UniversityNanchangJiangxiP. R. China
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Zhao JY, Sheng XL, Li CJ, Qin T, He RD, Dai GY, Cao Y, Lu HB, Duan CY, Hu JZ. Metformin promotes angiogenesis and functional recovery in aged mice after spinal cord injury by adenosine monophosphate-activated protein kinase/endothelial nitric oxide synthase pathway. Neural Regen Res 2023; 18:1553-1562. [PMID: 36571362 PMCID: PMC10075126 DOI: 10.4103/1673-5374.360245] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
Treatment with metformin can lead to the recovery of pleiotropic biological activities after spinal cord injury. However, its effect on spinal cord injury in aged mice remains unclear. Considering the essential role of angiogenesis during the regeneration process, we hypothesized that metformin activates the adenosine monophosphate-activated protein kinase/endothelial nitric oxide synthase pathway in endothelial cells, thereby promoting microvascular regeneration in aged mice after spinal cord injury. In this study, we established young and aged mouse models of contusive spinal cord injury using a modified Allen method. We found that aging hindered the recovery of neurological function and the formation of blood vessels in the spinal cord. Treatment with metformin promoted spinal cord microvascular endothelial cell migration and blood vessel formation in vitro. Furthermore, intraperitoneal injection of metformin in an in vivo model promoted endothelial cell proliferation and increased the density of new blood vessels in the spinal cord, thereby improving neurological function. The role of metformin was reversed by compound C, an adenosine monophosphate-activated protein kinase inhibitor, both in vivo and in vitro, suggesting that the adenosine monophosphate-activated protein kinase/endothelial nitric oxide synthase pathway likely regulates metformin-mediated angiogenesis after spinal cord injury. These findings suggest that metformin promotes vascular regeneration in the injured spinal cord by activating the adenosine monophosphate-activated protein kinase/endothelial nitric oxide synthase pathway, thereby improving the neurological function of aged mice after spinal cord injury.
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Affiliation(s)
- Jin-Yun Zhao
- Department of Spine Surgery and Orthopedics, Xiangya Hospital, Central South University; Key Laboratory of Organ Injury, Aging and Regenerative Medicine of Hunan Province; National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University; Hunan Engineering Research Center of Sports and Health, Changsha, Hunan Province, China
| | - Xiao-Long Sheng
- Department of Spine Surgery and Orthopedics, Xiangya Hospital, Central South University; Key Laboratory of Organ Injury, Aging and Regenerative Medicine of Hunan Province; National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University; Hunan Engineering Research Center of Sports and Health, Changsha, Hunan Province, China
| | - Cheng-Jun Li
- Department of Spine Surgery and Orthopedics, Xiangya Hospital, Central South University; Key Laboratory of Organ Injury, Aging and Regenerative Medicine of Hunan Province; National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University; Hunan Engineering Research Center of Sports and Health, Changsha, Hunan Province, China
| | - Tian Qin
- Department of Spine Surgery and Orthopedics, Xiangya Hospital, Central South University; Key Laboratory of Organ Injury, Aging and Regenerative Medicine of Hunan Province; National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University; Hunan Engineering Research Center of Sports and Health, Changsha, Hunan Province, China
| | - Run-Dong He
- Department of Spine Surgery and Orthopedics, Xiangya Hospital, Central South University; Key Laboratory of Organ Injury, Aging and Regenerative Medicine of Hunan Province; National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University; Hunan Engineering Research Center of Sports and Health, Changsha, Hunan Province, China
| | - Guo-Yu Dai
- Department of Spine Surgery and Orthopedics, Xiangya Hospital, Central South University; Key Laboratory of Organ Injury, Aging and Regenerative Medicine of Hunan Province; National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University; Hunan Engineering Research Center of Sports and Health, Changsha, Hunan Province, China
| | - Yong Cao
- Department of Spine Surgery and Orthopedics, Xiangya Hospital, Central South University; Key Laboratory of Organ Injury, Aging and Regenerative Medicine of Hunan Province; National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University; Hunan Engineering Research Center of Sports and Health, Changsha, Hunan Province, China
| | - Hong-Bin Lu
- Key Laboratory of Organ Injury, Aging and Regenerative Medicine of Hunan Province; National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University; Hunan Engineering Research Center of Sports and Health; Department of Sports Medicine, Research Centre of Sports Medicine, Xiangya Hospital, Central South University, Changsha, Hunan Province, China
| | - Chun-Yue Duan
- Department of Spine Surgery and Orthopedics, Xiangya Hospital, Central South University; Key Laboratory of Organ Injury, Aging and Regenerative Medicine of Hunan Province; National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University; Hunan Engineering Research Center of Sports and Health, Changsha, Hunan Province, China
| | - Jian-Zhong Hu
- Department of Spine Surgery and Orthopedics, Xiangya Hospital, Central South University; Key Laboratory of Organ Injury, Aging and Regenerative Medicine of Hunan Province; National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University; Hunan Engineering Research Center of Sports and Health, Changsha, Hunan Province, China
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Shimizu K, Kaneko K, Koyama D, Ohinata K. Soy-fortelin: A ghrelin sensitivity-enhancing peptide that stimulates food intake in aged mice. FASEB J 2023; 37:e22836. [PMID: 36856734 DOI: 10.1096/fj.202201482r] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2022] [Revised: 01/24/2023] [Accepted: 02/13/2023] [Indexed: 03/02/2023]
Abstract
Ghrelin sensitivity is known to decrease with aging in mice and humans, and the decrease contributes to anorexia with aging. In this study, we discovered novel ghrelin sensitivity-enhancing peptides. Ghrelin sensitivity was evaluated by examining whether dipeptide samples enhanced the calcium response to ghrelin in the growth hormone secretagogue receptor-transfected cell line. First, dipeptides were screened using a 336-dipeptide library and we revealed that Ser-Tyr (SY) potentiated ghrelin sensitivity in particular. Based on the structure-activity relationship determined using the dipeptide library and comprehensive analysis of peptides in the chymotrypsin digest of soy β-conglycinin (β-CG), which enhanced ghrelin sensitivity, candidate peptides were narrowed down. Among the chemosynthesized peptides, we discovered that an undecapeptide, SLVNNDDRDSY, corresponding to β-CGα(267-277), stimulated ghrelin sensitivity in vitro. This peptide enhanced the orexigenic activity of ghrelin in C57BL/6 mice and stimulated food intake. Thus, we demonstrated that SLVNNDDRDSY stimulated ghrelin sensitivity in vitro and in vivo and named it "soy-fortelin". Moreover, orally administered soy-fortelin had a similar but smaller effect in the young C57BL/6 mice, whereas it strongly stimulated food intake in 2-year-old aged mice that exhibited high blood ghrelin levels and low ghrelin sensitivity. In conclusion, we discovered soy-fortelin as a novel peptide that enhances ghrelin sensitivity in vivo and in vitro and increases food intake in young and aged ghrelin-resistant mice. Soy-fortelin is the first food-derived peptide reported to enhance ghrelin sensitivity.
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Affiliation(s)
- Ken Shimizu
- Division of Food Science and Biotechnology, Graduate School of Agriculture, Kyoto University, Kyoto, Japan
| | - Kentaro Kaneko
- Division of Food Science and Biotechnology, Graduate School of Agriculture, Kyoto University, Kyoto, Japan
| | - Daiki Koyama
- Division of Food Science and Biotechnology, Graduate School of Agriculture, Kyoto University, Kyoto, Japan
| | - Kousaku Ohinata
- Division of Food Science and Biotechnology, Graduate School of Agriculture, Kyoto University, Kyoto, Japan
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Garrick JM, Cole TB, Dao K, Phillips A, Costa LG. Perinatal diesel exhaust exposure causes persistent changes in the brains of aged mice: An assessment of behavioral and biochemical endpoints related to neurodegenerative disease. Environ Toxicol 2023; 38:899-913. [PMID: 36629036 DOI: 10.1002/tox.23733] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/10/2022] [Revised: 11/23/2022] [Accepted: 12/25/2022] [Indexed: 06/17/2023]
Abstract
Epidemiological studies support an association between air pollution exposure, specifically particulate matter (PM), and neurodegenerative disease. Diesel exhaust (DE) is a principal component of ambient air pollution and a major contributor of PM. Our study aimed to examine whether early-life perinatal DE exposure is sufficient to affect behavioral and biochemical endpoints related to Alzheimer's disease later in life. To achieve this, mice were perinatally exposed (embryonic day 0-postnatal day 21) to DE (250-300 μg/m3 ) or filtered air (FA), and allowed to reach aged status (>18 months). Mice underwent behavioral assessment at 6 and 20 months of age, with tissue collected at 22 months for biochemical endpoints. At 6 months, minimal changes were noted in home-cage behavior of DE treated animals. At 20 months, an alternation deficit was noted with the T-maze, although no difference was seen in the object location task or any home-cage metrics. DE exposure did not alter the expression of Aβ42, phosphorylated tau S199, or total tau. However, IBA-1 protein, a microglial activation marker, was significantly higher in DE exposed animals. Further, lipid peroxidation levels were significantly higher in the DE exposed animals compared to FA controls. Cytokine levels were largely unchanged with DE exposure, suggesting a lack of inflammation despite persistent lipid peroxidation. Taken together, the findings of this study support that perinatal exposure alone is sufficient to cause lasting changes in the brain, although the effects appear to be less striking than those previously reported in younger animals, suggesting some effects do not persist over time. These findings are encouraging from a public health standpoint and support the aggressive reduction of DE emissions to reduce lifetime exposure and potentially reduce disease outcome.
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Affiliation(s)
- Jacqueline M Garrick
- Department of Environmental and Occupational Health Sciences, University of Washington, Seattle, Washington, USA
| | - Toby B Cole
- Department of Environmental and Occupational Health Sciences, University of Washington, Seattle, Washington, USA
- Center on Human Development and Disabilities, University of Washington, Seattle, Washington, USA
| | - Khoi Dao
- Department of Environmental and Occupational Health Sciences, University of Washington, Seattle, Washington, USA
| | - Ashley Phillips
- Department of Environmental and Occupational Health Sciences, University of Washington, Seattle, Washington, USA
| | - Lucio G Costa
- Department of Environmental and Occupational Health Sciences, University of Washington, Seattle, Washington, USA
- Department of Medicine and Surgery, University of Parma, Parma, Italy
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Zhao J, Zhang Z, Lai KC, Lai L. Recombinant FOXN1 fusion protein increases T cell generation in aged mice. Res Sq 2023:rs.3.rs-2557067. [PMID: 36798162 PMCID: PMC9934747 DOI: 10.21203/rs.3.rs-2557067/v1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Indexed: 02/11/2023]
Abstract
Background Although the thymus continues to export T cells throughout life, it undergoes a profound involution/atrophy with age, resulting in decreased numbers of T cells in the older adult, which has direct etiological linkages with many diseases. T cell development in the thymus is dependent on the thymic microenvironment, in which thymic epithelial cells (TECs) are the major component. However, TECs undergo both a qualitative and quantitative loss during aging, which is believed to be the major factor responsible for age-dependent thymic atrophy. FOXN1 plays a critical role in TEC development and adult TECs maintenance. We have previously reported that intrathymic injection of a recombinant (r) protein containing FOXN1 and a protein transduction domain increases the number of TECs in mice, leading to enhanced thymopoiesis. However, intrathymic injection may not be an ideal choice for clinical applications. In this study, we produce a rFOXN1 fusion protein containing the N-terminal of CCR9, FOXN1 and a protein transduction domain. Results We show here that, when injected intravenously into aged mice, the rFOXN1 fusion protein migrates into the thymus and enhances thymopoiesis, resulting in increased T cell generation in the thymus and increased number of T cells in peripheral lymphoid organ. Conclusions Our results suggest that the rFOXN1 fusion protein has the potential to be used in preventing and treating T cell immunodeficiency in the older adult.
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Kaneko K, Tokuyama Y, Taniguchi E, Abe S, Nakato J, Iwakura H, Sato M, Kurabayashi A, Suzuki H, Ito A, Higuchi Y, Nakayama R, Uchiyama K, Takahashi H, Ohinata K. Rice Endoplasmic Protein-Derived Peptides, Rice-Ghretropins A and B, Stimulate Ghrelin Release in MGN3-1 Cells and Increase Plasma Acylated Ghrelin and Food Intake in Mice. J Agric Food Chem 2023; 71:421-429. [PMID: 36580688 DOI: 10.1021/acs.jafc.2c05965] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
In this study, we demonstrated that novel rice-derived bioactive peptides promote the secretion of ghrelin, an endogenous orexigenic hormone secreted from the stomach. The enzymatic digest of rice endosperm protein with subtilisin, a microorganism-derived enzyme, stimulated acylated ghrelin secretion in the ghrelin-releasing cell line MGN3-1 and increased food intake after oral administration in mice. By performing a comprehensive analysis based on structure-activity relationships, we selected candidate peptides from over 30,000 peptides in the rice digest. Among them, we found that QAFEPIRSV and TNPWHSPRQGSF, corresponding to the amino acid sequence of the rice endoplasmic proteins glutelin A1 or A2(52-60) and B1 or B2(31-42), respectively, stimulated acylated ghrelin release in MGN3-1 cells. We named them rice-ghretropins A and B. Pyroglutamate formation of rice-ghretropin A, [pyr1]-rice-ghretropin A, also promoted ghrelin secretion. Furthermore, oral administration of rice-ghretropins increased food intake, plasma ghrelin concentration, and small intestinal transit in mice. In addition, the subtilisin digest of the rice protein significantly increased food intake for 4 h in 9 month-old (control: 0.61 ± 0.049 g; digest: 0.83 ± 0.059 g) and 24 month-old mice (control: 0.52 ± 0.067 g; digest: 1.01 ± 0.064 g). In summary, we found that novel bioactive peptides, namely, rice-ghretropins, from the enzymatic digest of rice endosperm stimulated acylated ghrelin secretion and increased food intake. This is the first report of rice-derived exogenous bioactive peptides that increase acylated ghrelin secretion.
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Affiliation(s)
- Kentaro Kaneko
- Division of Food Science and Biotechnology, Graduate School of Agriculture, Kyoto University, Gokasho, Uji, Kyoto 611-0011, Japan
| | - Yuki Tokuyama
- Division of Food Science and Biotechnology, Graduate School of Agriculture, Kyoto University, Gokasho, Uji, Kyoto 611-0011, Japan
| | - Eriko Taniguchi
- Division of Food Science and Biotechnology, Graduate School of Agriculture, Kyoto University, Gokasho, Uji, Kyoto 611-0011, Japan
| | - Shimon Abe
- Division of Food Science and Biotechnology, Graduate School of Agriculture, Kyoto University, Gokasho, Uji, Kyoto 611-0011, Japan
| | - Junya Nakato
- Division of Food Science and Biotechnology, Graduate School of Agriculture, Kyoto University, Gokasho, Uji, Kyoto 611-0011, Japan
| | - Hiroshi Iwakura
- The First Department of Medicine, Wakayama Medical University, Wakayama 841-8509, Japan
| | - Masaru Sato
- Department of Applied Genomics, Kazusa DNA Research Institute, 2-6-7 Kazusakamatari, Kisarazu, Chiba 292-0818, Japan
| | - Atsushi Kurabayashi
- Department of Applied Genomics, Kazusa DNA Research Institute, 2-6-7 Kazusakamatari, Kisarazu, Chiba 292-0818, Japan
| | - Hideyuki Suzuki
- Department of Applied Genomics, Kazusa DNA Research Institute, 2-6-7 Kazusakamatari, Kisarazu, Chiba 292-0818, Japan
| | - Akira Ito
- Rice Research Institute, Kameda Seika CO., LTD. 3-1-1Kameda-kogyodanchi, Konan, Niigata, Niigata 950-0198, Japan
| | - Yuki Higuchi
- Rice Research Institute, Kameda Seika CO., LTD. 3-1-1Kameda-kogyodanchi, Konan, Niigata, Niigata 950-0198, Japan
| | - Ryoko Nakayama
- Rice Research Institute, Kameda Seika CO., LTD. 3-1-1Kameda-kogyodanchi, Konan, Niigata, Niigata 950-0198, Japan
| | - Kimiko Uchiyama
- Rice Research Institute, Kameda Seika CO., LTD. 3-1-1Kameda-kogyodanchi, Konan, Niigata, Niigata 950-0198, Japan
| | - Hajime Takahashi
- Rice Research Institute, Kameda Seika CO., LTD. 3-1-1Kameda-kogyodanchi, Konan, Niigata, Niigata 950-0198, Japan
| | - Kousaku Ohinata
- Division of Food Science and Biotechnology, Graduate School of Agriculture, Kyoto University, Gokasho, Uji, Kyoto 611-0011, Japan
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Yuan Y, Liu S, Ding X, Li Y, Zhang X, Song H, Qi X, Zhang Z, Guo K, Sun T. Early intestinal microbiota changes in aged and adult mice with sepsis. Front Cell Infect Microbiol 2022; 12:1061444. [PMID: 36636721 PMCID: PMC9831679 DOI: 10.3389/fcimb.2022.1061444] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2022] [Accepted: 11/29/2022] [Indexed: 12/28/2022] Open
Abstract
Background The mortality rate associated with sepsis in elderly individuals is higher than that in younger individuals. The intestinal microbiota has been demonstrated to play an important role in the occurrence and development of sepsis. The purpose of this study was to investigate the differences in the intestinal microbiota between aged and adult mice with sepsis. Methods Thirty male C57BL mice were randomly divided into two groups: 15 in the adult group (AD group) and 15 in the age group (Age group). All the mice underwent caecal ligation and puncture to induce sepsis. Mice faeces were collected, and analysed using 16S rRNA sequencing. The liver and colon tissues were collected. Results There were significant differences in intestinal microbiota composition between the two groups. Compared with adult sepsis mice, the diversity of intestinal microbiota in the aged group was significantly reduced and the structure of dominant intestinal microbiota was changed. In the Age group, the microbiota associated with inflammatory factors increased, and the microbiota associated with the production of SCFAs (Ruminiclostridium, Prevotellaceae_UCG-001, Rikenella, Parabacteroides, Oscillibacter, Odoribacter, Muribaculum, Lachnoclostridium, Intestinimonas, Faecalibaculum, Anaerotruncus, Alloprevotella and Absiella) decreased. The metabolic pathways related to the microbiota also changed. Moreover, the proportion of inflammatory factors in Age group was higher than that in AD group. Conclusion Our results showed that there were significant differences in the abundance and structure of microbiota between aged and adult sepsis mice, Aged sepsis mice have more severe intestinal microbiota destruction and liver tissue inflammation than adult sepsis mice.
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Affiliation(s)
- Yangyang Yuan
- General Intensive Care Unit, The First Affiliated Hospital of Zhengzhou University, Henan Key Laboratory of Critical Care Medicine, Henan Engineering Research Center for Critical Care Medicine, Zhengzhou, China
- Zhengzhou Key Laboratory of Sepsis, Zhengzhou, China
| | - Shaohua Liu
- General Intensive Care Unit, The First Affiliated Hospital of Zhengzhou University, Henan Key Laboratory of Critical Care Medicine, Henan Engineering Research Center for Critical Care Medicine, Zhengzhou, China
- Zhengzhou Key Laboratory of Sepsis, Zhengzhou, China
| | - Xianfei Ding
- General Intensive Care Unit, The First Affiliated Hospital of Zhengzhou University, Henan Key Laboratory of Critical Care Medicine, Henan Engineering Research Center for Critical Care Medicine, Zhengzhou, China
- Zhengzhou Key Laboratory of Sepsis, Zhengzhou, China
| | - Ying Li
- Academy of Medical Sciences, Zhengzhou University, Zhengzhou, China
| | - Xiaojuan Zhang
- General Intensive Care Unit, The First Affiliated Hospital of Zhengzhou University, Henan Key Laboratory of Critical Care Medicine, Henan Engineering Research Center for Critical Care Medicine, Zhengzhou, China
- Zhengzhou Key Laboratory of Sepsis, Zhengzhou, China
| | - Heng Song
- General Intensive Care Unit, The First Affiliated Hospital of Zhengzhou University, Henan Key Laboratory of Critical Care Medicine, Henan Engineering Research Center for Critical Care Medicine, Zhengzhou, China
- Zhengzhou Key Laboratory of Sepsis, Zhengzhou, China
- Academy of Medical Sciences, Zhengzhou University, Zhengzhou, China
| | - Xueyan Qi
- General Intensive Care Unit, The First Affiliated Hospital of Zhengzhou University, Henan Key Laboratory of Critical Care Medicine, Henan Engineering Research Center for Critical Care Medicine, Zhengzhou, China
- Zhengzhou Key Laboratory of Sepsis, Zhengzhou, China
| | - Zihao Zhang
- Sanquan College Of Xinxiang Medical University, Xinxiang, China
| | - Kaiyuan Guo
- Academy of Medical Sciences, Zhengzhou University, Zhengzhou, China
| | - Tongwen Sun
- General Intensive Care Unit, The First Affiliated Hospital of Zhengzhou University, Henan Key Laboratory of Critical Care Medicine, Henan Engineering Research Center for Critical Care Medicine, Zhengzhou, China
- Zhengzhou Key Laboratory of Sepsis, Zhengzhou, China
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Wang X, Li Y, Zhao J, Yu J, Zhang Q, Xu F, Zhang Y, Zhou Q, Yin C, Hou Z, Wang Q. Activation of astrocyte Gq pathway in hippocampal CA1 region attenuates anesthesia/surgery induced cognitive dysfunction in aged mice. Front Aging Neurosci 2022; 14:1040569. [PMID: 36437995 PMCID: PMC9692004 DOI: 10.3389/fnagi.2022.1040569] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2022] [Accepted: 10/25/2022] [Indexed: 10/21/2023] Open
Abstract
The elderly are particularly vulnerable to brain dysfunction after fracture surgery, but the mechanism underlying the cognitive decline due to anesthesia/surgery is not well understood. In this study, we observed hippocampus-dependent cognitive impairment in aged mice undergoing anesthesia and tibial fracture surgery, a common model of postoperative cognitive dysfunction in aged mice. We used Golgi staining and neuroelectrophysiological techniques to detect structurally and functionally impaired synaptic plasticity in hippocampal CA1 region of Postoperative cognitive dysfunction aged mice, respectively. Based on the 'third party synapse' hypothesis of astrocytes, we used glial fibrillary acidic protein to label astrocytes and found an increase in abnormal activation of astrocytes in the CA1 region of hippocampus. We hypothesize that abnormal astrocyte function is the driving force for impaired synaptic plasticity. So we used chemogenetic methods to intervene astrocytes. Injection of adeno-associated virus into the CA1 region of the hippocampus bilateral to aged mice resulted in the specific expression of the Gq receptor, a receptor specially designed to be activated only by certain drugs, within astrocytes. The results of novel object recognition and conditioned fear experiments showed that CNO activation of astrocyte Gq pathway could improve the learning and memory ability and the synaptic plasticity of Postoperative cognitive dysfunction aged mice was also improved. The results of this study suggest that activation of the Gq pathway in astrocytes alleviates Postoperative cognitive dysfunction induced by anesthesia and surgery in aged mice.
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Affiliation(s)
- Xupeng Wang
- Department of Anesthesiology, Third Hospital of Hebei Medical University, Shijiazhuang, Hebei, China
| | - Yanan Li
- Department of Anesthesiology, Third Hospital of Hebei Medical University, Shijiazhuang, Hebei, China
| | - Juan Zhao
- Teaching Experiment Center, Hebei Medical University, Shijiazhuang, Hebei, China
| | - Jiaxu Yu
- Department of Anesthesiology, Third Hospital of Hebei Medical University, Shijiazhuang, Hebei, China
| | - Qi Zhang
- Department of Anesthesiology, Third Hospital of Hebei Medical University, Shijiazhuang, Hebei, China
- Department of Anesthesiology, Hebei Children’s Hospital Affiliated to Hebei Medical University, Shijiazhuang, Hebei, China
| | - Fang Xu
- Department of Anesthesiology, Third Hospital of Hebei Medical University, Shijiazhuang, Hebei, China
| | - Yahui Zhang
- Department of Anesthesiology, Third Hospital of Hebei Medical University, Shijiazhuang, Hebei, China
| | - Qi Zhou
- Department of Anesthesiology, Third Hospital of Hebei Medical University, Shijiazhuang, Hebei, China
| | - Chunping Yin
- Department of Anesthesiology, Third Hospital of Hebei Medical University, Shijiazhuang, Hebei, China
| | - Zhiyong Hou
- Department of Orthopedics, The Third Hospital of Hebei Medical University, Shijiazhuang, Hebei, China
- NHC Key Laboratory of Intelligent Orthopaedic Equipment, The Third Hospital of Hebei Medical University, Shijiazhuang, Hebei, China
| | - Qiujun Wang
- Department of Anesthesiology, Third Hospital of Hebei Medical University, Shijiazhuang, Hebei, China
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13
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Kang X, Li Y, Zhao Y, Chen X. Overcoming Aging-Associated Poor Influenza Vaccine Responses with CpG 1018 Adjuvant. Vaccines (Basel) 2022; 10. [PMID: 36366402 DOI: 10.3390/vaccines10111894] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2022] [Revised: 11/06/2022] [Accepted: 11/07/2022] [Indexed: 11/11/2022] Open
Abstract
Aging is associated with diminished immune system function, which renders old people vulnerable to influenza infection and also less responsive to influenza vaccination. This study explored whether the CpG 1018 adjuvant was effective in enhancing influenza vaccine efficacy in aged mice equivalent to human beings in their late 50s to early 60s. Using the influenza pandemic 2009 H1N1 (pdm09) vaccine as a model, we found that the CpG 1018 adjuvant could significantly enhance the pdm09 vaccine-induced serum antibody titer, while the pdm09 vaccine alone failed to elicit significant antibody titer. In contrast, the pdm09 vaccine alone elicited significant antibody titer in young adult mice. Antibody subtype analysis found that the pdm09 vaccine alone elicited Th2-biased antibody responses in young adult mice, while incorporation of the CpG 1018 adjuvant promoted the elicitation of potent Th1-biased antibody responses in aged mice. The pdm09 vaccine alone was further found to induce significant expansion of Th2 cells in young adult mice, while incorporation of the CpG 1018 adjuvant stimulated significant expansion of Th1 cells in aged mice. The CpG 1018 adjuvant also stimulated vaccine-specific cytotoxic T lymphocytes in aged mice. The pdm09 vaccine in the presence of CpG 1018 elicited significant protection against lethal viral challenges, while the pdm09 vaccine alone failed to confer significant protection in young adult or aged mice. Our study provided strong evidence to support the high effectiveness of the CpG 1018 adjuvant to boost influenza vaccination in aged mouse models.
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14
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Liu L, Liu J, Li M, Lyu J, Su W, Feng S, Ji X. Selective brain hypothermia attenuates focal cerebral ischemic injury and improves long-term neurological outcome in aged female mice. CNS Neurosci Ther 2022; 29:129-139. [PMID: 36341958 PMCID: PMC9804044 DOI: 10.1111/cns.14017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2022] [Revised: 10/09/2022] [Accepted: 10/20/2022] [Indexed: 11/09/2022] Open
Abstract
AIMS This study aimed to investigate the effects of mild selective brain hypothermia on aged female ischemic mice. METHODS A distal middle cerebral artery occlusion (dMCAO) model was established in aged female mice, who were then subjected to mild selective brain hypothermia immediately after the dMCAO procedure. Neurological behavioral examinations were conducted prior to and up to 35 days post-ischemia. Infarct volume, brain atrophy, pro-inflammation, and anti-inflammation microglia/macrophages phenotype and white matter injury were evaluated by immunofluorescence staining. Correlations between neurological behaviors and histological parameters were evaluated by Pearson product linear regression analysis. RESULTS Sensorimotor and cognitive function tests confirmed the protective effect of mild selective brain hypothermia in elderly female ischemic mice. In addition, hypothermia decreased the infarct volume and brain atrophy induced by focal cerebral ischemia. Furthermore, hypothermia alleviated ischemia-induced short-term and long-term white matter injury, which was correlated with behavioral deficits. Finally, hypothermia suppressed the harmful immunological response by promoting the transformation of pro-inflammatory microglia/macrophages to anti-inflammatory phenotype. This polarization was negatively correlated with neuronal loss and white matter injury. CONCLUSION Mild selective brain hypothermia promoted long-term functional recovery by alleviating white matter damage in an aged female mouse model of ischemia.
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Affiliation(s)
- Liqiang Liu
- Beijing Institute of Brain Disorders, Laboratory of Brain Disorders, Ministry of Science and Technology, Collaborative Innovation Center for Brain DisordersCapital Medical UniversityBeijingChina
| | - Jia Liu
- Beijing Institute of Brain Disorders, Laboratory of Brain Disorders, Ministry of Science and Technology, Collaborative Innovation Center for Brain DisordersCapital Medical UniversityBeijingChina
| | - Ming Li
- Beijing Institute of Geriatrics, Xuanwu HospitalCapital Medical UniversityBeijingChina
| | - Junxuan Lyu
- Department of Neurology, Xuanwu HospitalCapital Medical UniversityBeijingChina
| | - Wei Su
- Department of Neurosurgery, Beijing Tsing Hua Chang Gung Hospital, School of Clinical MedicineTsing Hua UniversityBeijingChina
| | - Shejun Feng
- Beijing Institute of Brain Disorders, Laboratory of Brain Disorders, Ministry of Science and Technology, Collaborative Innovation Center for Brain DisordersCapital Medical UniversityBeijingChina
| | - Xunming Ji
- Beijing Institute of Brain Disorders, Laboratory of Brain Disorders, Ministry of Science and Technology, Collaborative Innovation Center for Brain DisordersCapital Medical UniversityBeijingChina,Department of Neurosurgery, Xuanwu HospitalCapital Medical UniversityBeijingChina
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15
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Cao Y, Wang Z, Zhang C, Bian Y, Zhang X, Liu X, Chen W, Zhao Y. Metformin promotes in vitro maturation of oocytes from aged mice by attenuating mitochondrial oxidative stress via SIRT3-dependent SOD2ac. Front Cell Dev Biol 2022; 10:1028510. [PMID: 36393869 PMCID: PMC9640937 DOI: 10.3389/fcell.2022.1028510] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2022] [Accepted: 10/10/2022] [Indexed: 11/30/2022] Open
Abstract
Human female fecundity decreases irreversibly as chronological age rises, adversely affecting oocyte quality, consequently worsening pregnancy outcomes and increasing the extent of birth defects. The first-line type 2 diabetes treatment metformin has been associated with delayed aging and reduction of oxidative stress; yet it remains unclear if metformin confers any benefits for oocytes from aged mice, particularly in the context of the assisted human reproductive technology (ART) known as in vitro maturation (IVM). Here, we found that adding metformin into the M16 culture medium of oocytes from aged mice significantly improved both oocyte maturation and early embryonic development. This study showed that metformin reduced the extent of meiotic defects and maintained a normal distribution of cortical granules (CGs). RNA-seq analysis of metformin-treated oocytes revealed genes apparently involved in the reduction of mitochondrial ROS. Further, the results supported that the metformin improved mitochondrial function, reduced apoptosis, increased the extent of autophagy, and reduced mitochondrial ROS via SIRT3-mediated acetylation status of SOD2K68 in oocytes from aged mice. Thus, this finding demonstrated a protective effect for metformin against the decreased quality of oocytes from aged mice to potentially improve ART success rates and illustrated a potential strategy to prevent or delay reproductive aging.
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Affiliation(s)
- Yongzhi Cao
- Center for Reproductive Medicine, Shandong University, Jinan, Shandong, China,Key Laboratory of Reproductive Endocrinology of Ministry of Education, Shandong University, Jinan, Shandong, China,Shandong Key Laboratory of Reproductive Medicine, Jinan, Shandong, China,Shandong Provincial Clinical Research Center for Reproductive Health, Jinan, Shandong, China,Shandong Technology Innovation Center for Reproductive Health, Jinan, Shandong, China,National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Shandong University, Jinan, Shandong, China,Laboratory Animal Center, Shandong University, Jinan, Shandong, China
| | - Zhao Wang
- Center for Reproductive Medicine, Shandong University, Jinan, Shandong, China,Key Laboratory of Reproductive Endocrinology of Ministry of Education, Shandong University, Jinan, Shandong, China,Shandong Key Laboratory of Reproductive Medicine, Jinan, Shandong, China,Shandong Provincial Clinical Research Center for Reproductive Health, Jinan, Shandong, China,Shandong Technology Innovation Center for Reproductive Health, Jinan, Shandong, China,National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Shandong University, Jinan, Shandong, China
| | - Changming Zhang
- Center for Reproductive Medicine, Shandong University, Jinan, Shandong, China,Key Laboratory of Reproductive Endocrinology of Ministry of Education, Shandong University, Jinan, Shandong, China,Shandong Key Laboratory of Reproductive Medicine, Jinan, Shandong, China,Shandong Provincial Clinical Research Center for Reproductive Health, Jinan, Shandong, China,Shandong Technology Innovation Center for Reproductive Health, Jinan, Shandong, China,National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Shandong University, Jinan, Shandong, China
| | - Yuehong Bian
- Center for Reproductive Medicine, Shandong University, Jinan, Shandong, China,Key Laboratory of Reproductive Endocrinology of Ministry of Education, Shandong University, Jinan, Shandong, China,Shandong Key Laboratory of Reproductive Medicine, Jinan, Shandong, China,Shandong Provincial Clinical Research Center for Reproductive Health, Jinan, Shandong, China,Shandong Technology Innovation Center for Reproductive Health, Jinan, Shandong, China,National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Shandong University, Jinan, Shandong, China
| | - Xin Zhang
- Center for Reproductive Medicine, Shandong University, Jinan, Shandong, China,Key Laboratory of Reproductive Endocrinology of Ministry of Education, Shandong University, Jinan, Shandong, China,Shandong Key Laboratory of Reproductive Medicine, Jinan, Shandong, China,Shandong Provincial Clinical Research Center for Reproductive Health, Jinan, Shandong, China,Shandong Technology Innovation Center for Reproductive Health, Jinan, Shandong, China,National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Shandong University, Jinan, Shandong, China
| | - Xin Liu
- Center for Reproductive Medicine, Shandong University, Jinan, Shandong, China,Key Laboratory of Reproductive Endocrinology of Ministry of Education, Shandong University, Jinan, Shandong, China,Shandong Key Laboratory of Reproductive Medicine, Jinan, Shandong, China,Shandong Provincial Clinical Research Center for Reproductive Health, Jinan, Shandong, China,Shandong Technology Innovation Center for Reproductive Health, Jinan, Shandong, China,National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Shandong University, Jinan, Shandong, China
| | - Wendi Chen
- Center for Reproductive Medicine, Shandong University, Jinan, Shandong, China,Key Laboratory of Reproductive Endocrinology of Ministry of Education, Shandong University, Jinan, Shandong, China,Shandong Key Laboratory of Reproductive Medicine, Jinan, Shandong, China,Shandong Provincial Clinical Research Center for Reproductive Health, Jinan, Shandong, China,Shandong Technology Innovation Center for Reproductive Health, Jinan, Shandong, China,National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Shandong University, Jinan, Shandong, China
| | - Yueran Zhao
- Center for Reproductive Medicine, Shandong University, Jinan, Shandong, China,Key Laboratory of Reproductive Endocrinology of Ministry of Education, Shandong University, Jinan, Shandong, China,Shandong Key Laboratory of Reproductive Medicine, Jinan, Shandong, China,Shandong Provincial Clinical Research Center for Reproductive Health, Jinan, Shandong, China,Shandong Technology Innovation Center for Reproductive Health, Jinan, Shandong, China,National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Shandong University, Jinan, Shandong, China,Central Laboratory, Shandong Provincial Hospital, Shandong University, Jinan, Shandong, China,*Correspondence: Yueran Zhao,
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Garrido A, de la Fuente M. SOCIAL ENVIRONMENT IMPROVES THE CYTOKINE PROFILE AND LYMPHOPROLIFERATIVE RESPONSE IN CHRONOLOGICALLY OLD AND PREMATURELY AGING MICE. Mech Ageing Dev 2022;:111692. [PMID: 35760213 DOI: 10.1016/j.mad.2022.111692] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2022] [Revised: 06/07/2022] [Accepted: 06/22/2022] [Indexed: 11/21/2022]
Abstract
Among the age-associated changes in the immune system, the most evident is the decrease in proliferative responses of lymphocytes to mitogenic stimuli, which is accompanied by the loss of cytokine network homeostasis. Chronic low-grade inflammatory stress, termed as sterile inflammation, is also observed during aging. In chronologically and prematurely aging mice, cohabitation with adult animals for two months favored improvements in several immune functions. This study aimed to determine whether cohabitation could restore several cytokine networks, improve lymphoproliferative responses to mitogens, and diminish sterile inflammation. Chronologically old mice (76±4 weeks) and prematurely aging mice (33±4 weeks) (PAM and TH-HZ) were cohabited with adults (without premature aging) for two months. Subsequently, lymphoproliferation in both basal (unstimulated) conditions and in the presence of mitogenic stimuli lipopolysaccharide A (LPS) or concanavalin A (ConA) was analyzed in cultures of peritoneal leukocytes for 48h. Cytokine secretions (IL-1β, TNF-α, IL-6, IL-10, and IL-17) in these cultures were also evaluated. The results showed that cohabitation restored the levels of these cytokines in old and prematurely aging mice and improved the subsequent lymphoproliferative responses. In addition, this social strategy diminished sterile inflammation and decreased inflammatory stress in unstimulated conditions. Therefore, this strategy seems to be capable of restoring the relevant immune function of lymphocytes and reducing the inflammatory stress, which are the improvements required for an adequate immune response.
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Schepelmann M, Kupper N, Gushchina V, Mesteri I, Manhardt T, Moritsch S, Müller C, Piatek K, Salzmann M, Vlasaty A, Eferl R, Kallay E. AOM/DSS Induced Colitis-Associated Colorectal Cancer in 14-Month-Old Female Balb/C and C57/Bl6 Mice-A Pilot Study. Int J Mol Sci 2022; 23. [PMID: 35563665 DOI: 10.3390/ijms23095278] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2022] [Revised: 05/02/2022] [Accepted: 05/06/2022] [Indexed: 01/19/2023] Open
Abstract
Colitis is a major risk factor for the development of colorectal cancer, leading to colitis-associated colorectal cancer (CAC). The most commonly used animal model to study CAC is the azoxymethane-dextran sulphate-sodium (AOM/DSS) model. The ideal experimental conditions of this model depend on several factors, including the used mouse strain. No data on feasibility and conditions for older mice, e.g., for aging studies, have yet been reported. Thus, we conducted a descriptive, observational pilot study where CAC was induced in 14-month-old female Balb/C and C57/Bl6 mice using 12.5 mg/kg AOM i.p. and three different concentrations of DSS (1, 2, and 3%) in drinking water (ad. lib.). The mice were monitored regularly during the three-month experimental phase. After euthanasia, the colons of the mice were evaluated macroscopically and microscopically. Both the mouse strains showed a DSS-concentration-dependent induction of CAC. Carcinomas were only observed at 3% DSS. The DSS dose was found to be significantly correlated with the histology score and % Ki67 positive cells only in C57/Bl6 mice but not in Balb/C mice, which showed a variable response to the CAC induction. No differences in colon length, weight, or mucin content were observed. Optimal conditions for CAC induction in these aged animals are thus considered to be 3% DSS, as carcinomas did not develop when 2% DSS was used. On the other hand, Balb/C mice reacted severely to 3% DSS, indicating that 2.5% DSS may be the "sweet spot" for future experiments comparing CAC in aged Balb/C and C57/Bl6 mice. This model will allow investigation of the effect of aging on CAC development and therapy.
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Jin C, Shao Y, Zhang X, Xiang J, Zhang R, Sun Z, Mei S, Zhou J, Zhang J, Shi L. A Unique Type of Highly-Activated Microglia Evoking Brain Inflammation via Mif/Cd74 Signaling Axis in Aged Mice. Aging Dis 2021; 12:2125-2139. [PMID: 34881090 PMCID: PMC8612608 DOI: 10.14336/ad.2021.0520] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2021] [Accepted: 05/20/2021] [Indexed: 12/30/2022] Open
Abstract
Senescence-associated alterations of microglia have only recently been appreciated in the aged brain. Although our previous study has reported chronic inflammation in aged microglia, the mechanism remains poorly understood. Here, we performed morphological detection and transcriptomic analysis of aged microglia at the single cell level. Aged mice showed a large quantity and a large body volume of microglia in the brain. Six subgroups of microglia with unique function were identified by single cell RNA sequencing. Three out of six subgroups showed dramatic variations in microglia between aged and young mice. A unique type of highly-activated microglia (HAM) was observed in aged mice only, with specific expression of several markers, including Lpl, Lgals3, Cst7, and Cd74. Gene clusters with functional implications in cell survival, energy metabolism, and immuno-inflammatory responses were markedly activated in HAM. Mechanistically, neuron-released Mif, acting through Cd74 receptor in HAM, promoted the immunochemotactic activity of microglia, which then triggered immuno-inflammatory responses in aged brains. These findings may reveal new targets for reducing age-related brain inflammation to maintain brain health.
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Affiliation(s)
- Chenghao Jin
- 1Department of Neurosurgery, Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Yijie Shao
- 1Department of Neurosurgery, Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Xiaotao Zhang
- 1Department of Neurosurgery, Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Jiani Xiang
- 1Department of Neurosurgery, Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Ruize Zhang
- 1Department of Neurosurgery, Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Zeyu Sun
- 1Department of Neurosurgery, Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Shuhao Mei
- 1Department of Neurosurgery, Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Jingyi Zhou
- 1Department of Neurosurgery, Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Jianmin Zhang
- 1Department of Neurosurgery, Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China.,2Brain Research Institute, Zhejiang University, Hangzhou, Zhejiang, China.,3Collaborative Innovation Center for Brain Science, Zhejiang University, Hangzhou, Zhejiang, China
| | - Ligen Shi
- 1Department of Neurosurgery, Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
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19
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Kim JE, Kwon EY, Han Y. Allulose Attenuated Age-Associated Sarcopenia via Regulating IGF-1 and Myostatin in Aged Mice. Mol Nutr Food Res 2021; 66:e2100549. [PMID: 34710274 DOI: 10.1002/mnfr.202100549] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2021] [Revised: 09/29/2021] [Indexed: 12/25/2022]
Abstract
SCOPE Allulose is shown to increase the muscle weight in diet-induced obese mice. However, there are no studies on the effects of allulose in age-associated sarcopenia. This study aims to elucidate the mechanisms of action for allulose in age associated by analyzing the transcriptional patterns in aged mice. METHODS AND RESULTS The 48-week-old mice are fed with AIN-93diet containing allulose for 12 weeks. Allulose supplementation increases the muscle mass and grip strength in aged mice. Allulose increases the insulin-like growth factor 1 (IGF-1) and its downstream factor expressions which 40 are related protein synthesis, while inhibits the myostatin expression related protein degradation. In mRNA-seq analysis, allulose supplementation significantly decreases in Adiponectin, Adipsin, cell death inducing DFFA like effector (CIDEC), Haptoglobin, Neuroglobin, and stearoyl-CoA desaturase-1 (SCD1) and increases in cytokine-inducible SH2-containing protein (CISH) and ceramide synthase 1 (CerS1) that are regulate protein turn over in gastrocnemius. Also, allulose alleviates autophagy in muscle with regulated mammalian target of rapamycin (mTOR) signaling pathway and increases the anti-oxidant enzyme activity. CONCLUSION These findings suggest that allulose improves the age-associated sarcopenia with enhancing antioxidant properties by altering mRNA and protein expression.
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Affiliation(s)
- Ji-Eun Kim
- Department of Food Science and Nutrition, Kyungpook National University, 1370 San-Kyuk Dong, Puk-Ku, Daegu, 702-701, Republic of Korea.,Center for Food and Nutritional Genomics Research, Kyungpook National University, 1370 San-Kyuk Dong, Puk-Ku, Daegu, 702-701, Republic of Korea.,Center for Beautiful Aging, Kyungpook National University, 1370 San-Kyuk Dong, Puk-Ku, Daegu, 702-701, Republic of Korea
| | - Eun-Young Kwon
- Department of Food Science and Nutrition, Kyungpook National University, 1370 San-Kyuk Dong, Puk-Ku, Daegu, 702-701, Republic of Korea.,Center for Food and Nutritional Genomics Research, Kyungpook National University, 1370 San-Kyuk Dong, Puk-Ku, Daegu, 702-701, Republic of Korea.,Center for Beautiful Aging, Kyungpook National University, 1370 San-Kyuk Dong, Puk-Ku, Daegu, 702-701, Republic of Korea
| | - Youngji Han
- Department of Food Science and Nutrition, Kyungpook National University, 1370 San-Kyuk Dong, Puk-Ku, Daegu, 702-701, Republic of Korea.,Center for Food and Nutritional Genomics Research, Kyungpook National University, 1370 San-Kyuk Dong, Puk-Ku, Daegu, 702-701, Republic of Korea.,Center for Beautiful Aging, Kyungpook National University, 1370 San-Kyuk Dong, Puk-Ku, Daegu, 702-701, Republic of Korea
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20
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Hamada N, Kawano KI, Nomura T, Furukawa K, Yusoff FM, Maruhashi T, Maeda M, Nakashima A, Higashi Y. Vascular Damage in the Aorta of Wild-Type Mice Exposed to Ionizing Radiation: Sparing and Enhancing Effects of Dose Protraction. Cancers (Basel) 2021; 13:5344. [PMID: 34771507 PMCID: PMC8582417 DOI: 10.3390/cancers13215344] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2021] [Revised: 10/22/2021] [Accepted: 10/22/2021] [Indexed: 12/12/2022] Open
Abstract
During medical (therapeutic or diagnostic) procedures or in other settings, the circulatory system receives ionizing radiation at various dose rates. Here, we analyzed prelesional changes in the circulatory system of wild-type mice at six months after starting acute, intermittent, or continuous irradiation with 5 Gy of photons. Independent of irradiation regimens, irradiation had little impact on left ventricular function, heart weight, and kidney weight. In the aorta, a single acute exposure delivered in 10 minutes led to structural disorganizations and detachment of the aortic endothelium, and intima-media thickening. These morphological changes were accompanied by increases in markers for profibrosis (TGF-β1), fibrosis (collagen fibers), proinflammation (TNF-α), and macrophages (F4/80 and CD68), with concurrent decreases in markers for cell adhesion (CD31 and VE-cadherin) and vascular functionality (eNOS) in the aortic endothelium. Compared with acute exposure, the magnitude of such aortic changes was overall greater when the same dose was delivered in 25 fractions spread over 6 weeks, smaller in 100 fractions over 5 months, and much smaller in chronic exposure over 5 months. These findings suggest that dose protraction alters vascular damage in the aorta, but in a way that is not a simple function of dose rate.
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Affiliation(s)
- Nobuyuki Hamada
- Radiation Safety Unit, Biology and Environmental Chemistry Division, Sustainable System Research Laboratory, Central Research Institute of Electric Power Industry (CRIEPI), Tokyo 201-8511, Japan;
| | - Ki-ichiro Kawano
- Department of Cardiovascular Regeneration and Medicine, Research Institute for Radiation Biology and Medicine, Hiroshima University, Hiroshima 734-8551, Japan; (K.-i.K.); (F.M.Y.); (T.M.)
| | - Takaharu Nomura
- Radiation Safety Unit, Biology and Environmental Chemistry Division, Sustainable System Research Laboratory, Central Research Institute of Electric Power Industry (CRIEPI), Tokyo 201-8511, Japan;
| | - Kyoji Furukawa
- Biostatistics Center, Kurume University, Kurume 830-0011, Japan;
| | - Farina Mohamad Yusoff
- Department of Cardiovascular Regeneration and Medicine, Research Institute for Radiation Biology and Medicine, Hiroshima University, Hiroshima 734-8551, Japan; (K.-i.K.); (F.M.Y.); (T.M.)
| | - Tatsuya Maruhashi
- Department of Cardiovascular Regeneration and Medicine, Research Institute for Radiation Biology and Medicine, Hiroshima University, Hiroshima 734-8551, Japan; (K.-i.K.); (F.M.Y.); (T.M.)
| | - Makoto Maeda
- Natural Science Center for Basic Research and Development, Hiroshima 739-8526, Japan;
| | - Ayumu Nakashima
- Department of Stem Cell Biology and Medicine, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima 734-8551, Japan;
| | - Yukihito Higashi
- Department of Cardiovascular Regeneration and Medicine, Research Institute for Radiation Biology and Medicine, Hiroshima University, Hiroshima 734-8551, Japan; (K.-i.K.); (F.M.Y.); (T.M.)
- Division of Regeneration and Medicine, Medical Center for Translational and Clinical Research, Hiroshima University Hospital, Hiroshima 734-8551, Japan
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21
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Ahn J, Son HJ, Seo HD, Ha TY, Ahn J, Lee H, Shin SH, Jung CH, Jang YJ. γ-Oryzanol Improves Exercise Endurance and Muscle Strength by Upregulating PPARδ and ERRγ Activity in Aged Mice. Mol Nutr Food Res 2021; 65:e2000652. [PMID: 33932312 DOI: 10.1002/mnfr.202000652] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2020] [Revised: 04/05/2021] [Indexed: 12/24/2022]
Abstract
SCOPE γ-Oryzanol, a well-known antioxidant, has been used by body builders and athletes to boost strength and increase muscle gain, without major side effects. However, the effect of γ-Oryzanol on sarcopenia and the underlying molecular mechanism is poorly understood. RESULTS Aged mice fed with the γ-Oryzanol diet do not show significant changes in muscle weight, but show increased running endurance as well as improved grip strength. The expression and activity of PPARδ and ERRγ are increased in skeletal muscle of γ-Oryzanol supplemented mice. γ-Oryzanol upregulates oxidative muscle fibers by MEF2 transcription factor, and PGC-1α and ERRα expressions. Fatty acid oxidation related genes and mitochondria biogenesis are upregulated by γ-Oryzanol. In addition, γ-Oryzanol inhibits TGF-β-Smad-NADPH oxidase 4 pathway and inflammatory cytokines such as TNF-α, IL-1β, IL-6, and p65 NF-κB subunit, which cause skeletal muscle weakness. Collectively, γ-Oryzanol attenuates muscle weakness pathway and increases oxidative capacity by increasing PPARδ and ERRγ activity, which contributes to enhance strength and improve oxidative capacity in muscles, consequently enhancing exercise capacity in aged mice. Particularly, γ-Oryzanol directly binds to PPARδ. CONCLUSIONS These are the first findings showing that γ-Oryzanol enhances skeletal muscle function in aged mice by regulating PPARδ and ERRγ activity without muscle gain.
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Affiliation(s)
- Jisong Ahn
- Natural Materials and Metabolism Research Group, Korea Food Research Institute, Wanju, 55365, Republic of Korea
- Department of Food Science and Technology, Chonbuk National University, Jeonju, 54896, Republic of Korea
| | - Hyo Jeong Son
- Natural Materials and Metabolism Research Group, Korea Food Research Institute, Wanju, 55365, Republic of Korea
| | - Hyo Deok Seo
- Natural Materials and Metabolism Research Group, Korea Food Research Institute, Wanju, 55365, Republic of Korea
| | - Tae Youl Ha
- Natural Materials and Metabolism Research Group, Korea Food Research Institute, Wanju, 55365, Republic of Korea
- Division of Food Biotechnology, University of Science and Technology, Daejeon, 34113, Republic of Korea
| | - Jiyun Ahn
- Natural Materials and Metabolism Research Group, Korea Food Research Institute, Wanju, 55365, Republic of Korea
- Division of Food Biotechnology, University of Science and Technology, Daejeon, 34113, Republic of Korea
| | - Hyunjung Lee
- Natural Materials and Metabolism Research Group, Korea Food Research Institute, Wanju, 55365, Republic of Korea
| | - Seung Ho Shin
- Department of Food and Nutrition, Gyeongsang National University, Jinju, 52828, Republic of Korea
- The Hormel Institute, University of Minnesota, Austin, MN, 55912, USA
| | - Chang Hwa Jung
- Natural Materials and Metabolism Research Group, Korea Food Research Institute, Wanju, 55365, Republic of Korea
- Division of Food Biotechnology, University of Science and Technology, Daejeon, 34113, Republic of Korea
| | - Young Jin Jang
- Natural Materials and Metabolism Research Group, Korea Food Research Institute, Wanju, 55365, Republic of Korea
- Major of Food Science & Technology, Seoul Women's University, Seoul, 01797, Republic of Korea
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22
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Kim KH, Bhatnagar N, Jeeva S, Oh J, Park BR, Shin CH, Wang BZ, Kang SM. Immunogenicity and Neutralizing Activity Comparison of SARS-CoV-2 Spike Full-Length and Subunit Domain Proteins in Young Adult and Old- Aged Mice. Vaccines (Basel) 2021; 9:316. [PMID: 33805473 DOI: 10.3390/vaccines9040316] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2021] [Revised: 03/23/2021] [Accepted: 03/24/2021] [Indexed: 12/30/2022] Open
Abstract
Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) continues to be expanding the pandemic disease across the globe. Although SARS-CoV-2 vaccines were rapidly developed and approved for emergency use of vaccination in humans, supply and production difficulties are slowing down the global vaccination program. The efficacy of many different versions of vaccine candidates and adjuvant effects remain unknown, particularly in the elderly. In this study, we compared the immunogenic properties of SARS-CoV-2 full-length spike (S) ectodomain in young adult and aged mice, S1 with receptor binding domain, and S2 with fusion domain. Full-length S was more immunogenic and effective in inducing IgG antibodies after low dose vaccination, compared to the S1 subunit. Old-aged mice induced SARS-CoV-2 spike-specific IgG antibodies with neutralizing activity after high dose S vaccination. With an increased vaccine dose, S1 was highly effective in inducing neutralizing and receptor-binding inhibiting antibodies, although both S1 and S2 subunit domain vaccines were similarly immunogenic. Adjuvant effects were significant for effective induction of IgG1 and IgG2a isotypes, neutralizing and receptor-binding inhibiting antibodies, and antibody-secreting B cell and interferon-γ secreting T cell immune responses. Results of this study provide information in designing SARS-CoV-2 spike vaccine antigens and effective vaccination in the elderly.
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23
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Vassilieva EV, Li S, Korniychuk H, Taylor DM, Wang S, Prausnitz MR, Compans RW. cGAMP/Saponin Adjuvant Combination Improves Protective Response to Influenza Vaccination by Microneedle Patch in an Aged Mouse Model. Front Immunol 2021; 11:583251. [PMID: 33603732 PMCID: PMC7884748 DOI: 10.3389/fimmu.2020.583251] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2020] [Accepted: 12/10/2020] [Indexed: 12/13/2022] Open
Abstract
Current strategies for improving protective response to influenza vaccines during immunosenescence do not adequately protect individuals over 65 years of age. Here, we used an aged mouse model to investigate the potential of co-delivery of influenza vaccine with the recently identified combination of a saponin adjuvant Quil-A and an activator of the STING pathway, 2’3 cyclic guanosine monophosphate–adenosine monophosphate (cGAMP) via dissolving microneedle patches (MNPs) applied to skin. We demonstrate that synergy between the two adjuvant components is observed after their incorporation with H1N1 vaccine into MNPs as revealed by analysis of the immune responses in adult mice. Aged 21-month-old mice were found to be completely protected against live influenza challenge after vaccination with the MNPs adjuvanted with the Quil-A/cGAMP combination (5 µg each) and demonstrated significantly reduced morbidity compared to the observed responses in these mice vaccinated with unadjuvanted MNPs. Analysis of the lung lysates of the surviving aged mice post challenge revealed the lowest level of residual inflammation in the adjuvanted groups. We conclude that combining influenza vaccine with a STING pathway activator and saponin-based adjuvant in MNPs is a novel option for skin vaccination of the immunosenescent population, which is at high risk for influenza.
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Affiliation(s)
- Elena V Vassilieva
- Department of Microbiology & Immunology and Emory Vaccine Center, Emory University School of Medicine, Atlanta, GA, United States
| | - Song Li
- School of Chemical and Biomolecular Engineering, Georgia Institute of Technology, Atlanta, GA, United States
| | - Heorhiy Korniychuk
- Department of Microbiology & Immunology and Emory Vaccine Center, Emory University School of Medicine, Atlanta, GA, United States
| | - Dahnide M Taylor
- Department of Microbiology & Immunology and Emory Vaccine Center, Emory University School of Medicine, Atlanta, GA, United States
| | - Shelly Wang
- Department of Microbiology & Immunology and Emory Vaccine Center, Emory University School of Medicine, Atlanta, GA, United States
| | - Mark R Prausnitz
- School of Chemical and Biomolecular Engineering, Georgia Institute of Technology, Atlanta, GA, United States
| | - Richard W Compans
- Department of Microbiology & Immunology and Emory Vaccine Center, Emory University School of Medicine, Atlanta, GA, United States
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24
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Rathnasinghe R, Jangra S, Cupic A, Martínez-Romero C, Mulder LCF, Kehrer T, Yildiz S, Choi A, Mena I, De Vrieze J, Aslam S, Stadlbauer D, Meekins DA, McDowell CD, Balaraman V, Richt JA, De Geest BG, Miorin L, Krammer F, Simon V, García-Sastre A, Schotsaert M. The N501Y mutation in SARS-CoV-2 spike leads to morbidity in obese and aged mice and is neutralized by convalescent and post-vaccination human sera. medRxiv 2021:2021.01.19.21249592. [PMID: 33501468 PMCID: PMC7836140 DOI: 10.1101/2021.01.19.21249592] [Citation(s) in RCA: 53] [Impact Index Per Article: 17.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
The current COVID-19 (coronavirus disease 19) pandemic, caused by SARS-CoV-2, disproportionally affects the elderly and people with comorbidities like obesity and associated type 2 diabetes mellitus. Small animal models are crucial for the successful development and validation of antiviral vaccines, therapies and to study the role that comorbidities have on the outcome of viral infections. The initially available SARS-CoV-2 isolates require adaptation in order to use the mouse angiotensin converting enzyme 2 (mACE-2) entry receptor and to productively infect the cells of the murine respiratory tract. We have "mouse-adapted" SARS-CoV-2 by serial passaging a clinical virus isolate in the lungs of mice. We then used low doses of this virus in mouse models for advanced age, diabetes and obesity. Similar to SARS-CoV-2 infection in humans, the outcome of infection with mouse-adapted SARS-CoV-2 resulted in enhanced morbidity in aged and diabetic obese mice. Mutations associated with mouse adaptation occurred in the S, M, N and ORF8 genes. Interestingly, one mutation in the receptor binding domain of the S protein results in the change of an asparagine to tyrosine residue at position 501 (N501Y). This mutation is also present in the newly emerging SARS-CoV-2 variant viruses reported in the U.K. (20B/501Y.V1, B1.1.7 lineage) that is epidemiologically associated with high human to human transmission. We show that human convalescent and post vaccination sera can neutralize the newly emerging N501Y virus variant with similar efficiency as that of the reference USA-WA1/2020 virus, suggesting that current SARS-CoV-2 vaccines will protect against the 20B/501Y.V1 strain.
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Affiliation(s)
- Raveen Rathnasinghe
- Department of Microbiology, Icahn School of Medicine at Mount Sinai New York, NY, USA
- Graduate School of Biomedical Sciences, Icahn School of Medicine at Mount Sinai, New York, NY, USA
- Global Health and Emerging Pathogens Institute, Icahn School of Medicine at Mount Sinai New York, NY, USA
| | - Sonia Jangra
- Department of Microbiology, Icahn School of Medicine at Mount Sinai New York, NY, USA
- Global Health and Emerging Pathogens Institute, Icahn School of Medicine at Mount Sinai New York, NY, USA
| | - Anastasija Cupic
- Department of Microbiology, Icahn School of Medicine at Mount Sinai New York, NY, USA
- Graduate School of Biomedical Sciences, Icahn School of Medicine at Mount Sinai, New York, NY, USA
- Global Health and Emerging Pathogens Institute, Icahn School of Medicine at Mount Sinai New York, NY, USA
| | - Carles Martínez-Romero
- Department of Microbiology, Icahn School of Medicine at Mount Sinai New York, NY, USA
- Global Health and Emerging Pathogens Institute, Icahn School of Medicine at Mount Sinai New York, NY, USA
| | - Lubbertus C F Mulder
- Department of Microbiology, Icahn School of Medicine at Mount Sinai New York, NY, USA
- Global Health and Emerging Pathogens Institute, Icahn School of Medicine at Mount Sinai New York, NY, USA
| | - Thomas Kehrer
- Department of Microbiology, Icahn School of Medicine at Mount Sinai New York, NY, USA
- Graduate School of Biomedical Sciences, Icahn School of Medicine at Mount Sinai, New York, NY, USA
- Global Health and Emerging Pathogens Institute, Icahn School of Medicine at Mount Sinai New York, NY, USA
| | - Soner Yildiz
- Department of Microbiology, Icahn School of Medicine at Mount Sinai New York, NY, USA
- Global Health and Emerging Pathogens Institute, Icahn School of Medicine at Mount Sinai New York, NY, USA
| | - Angela Choi
- Department of Microbiology, Icahn School of Medicine at Mount Sinai New York, NY, USA
- Graduate School of Biomedical Sciences, Icahn School of Medicine at Mount Sinai, New York, NY, USA
- Global Health and Emerging Pathogens Institute, Icahn School of Medicine at Mount Sinai New York, NY, USA
| | - Ignacio Mena
- Department of Microbiology, Icahn School of Medicine at Mount Sinai New York, NY, USA
- Global Health and Emerging Pathogens Institute, Icahn School of Medicine at Mount Sinai New York, NY, USA
| | - Jana De Vrieze
- Department of Pharmaceutics, Ghent University, Ghent, Belgium
| | - Sadaf Aslam
- Department of Microbiology, Icahn School of Medicine at Mount Sinai New York, NY, USA
- Global Health and Emerging Pathogens Institute, Icahn School of Medicine at Mount Sinai New York, NY, USA
| | - Daniel Stadlbauer
- Department of Microbiology, Icahn School of Medicine at Mount Sinai New York, NY, USA
| | - David A Meekins
- Department of Diagnostic Medicine/Pathobiology, College of Veterinary Medicine, Kansas State University, Manhattan, KS, USA
| | - Chester D McDowell
- Department of Diagnostic Medicine/Pathobiology, College of Veterinary Medicine, Kansas State University, Manhattan, KS, USA
| | - Velmurugan Balaraman
- Department of Diagnostic Medicine/Pathobiology, College of Veterinary Medicine, Kansas State University, Manhattan, KS, USA
| | - Juergen A Richt
- Department of Diagnostic Medicine/Pathobiology, College of Veterinary Medicine, Kansas State University, Manhattan, KS, USA
| | | | - Lisa Miorin
- Department of Microbiology, Icahn School of Medicine at Mount Sinai New York, NY, USA
- Global Health and Emerging Pathogens Institute, Icahn School of Medicine at Mount Sinai New York, NY, USA
| | - Florian Krammer
- Department of Microbiology, Icahn School of Medicine at Mount Sinai New York, NY, USA
| | - Viviana Simon
- Department of Microbiology, Icahn School of Medicine at Mount Sinai New York, NY, USA
- Global Health and Emerging Pathogens Institute, Icahn School of Medicine at Mount Sinai New York, NY, USA
- Department of Medicine, Division of Infectious Diseases, Icahn School of Medicine at Mount Sinai New York, NY, USA
| | - Adolfo García-Sastre
- Department of Microbiology, Icahn School of Medicine at Mount Sinai New York, NY, USA
- Global Health and Emerging Pathogens Institute, Icahn School of Medicine at Mount Sinai New York, NY, USA
- Department of Medicine, Division of Infectious Diseases, Icahn School of Medicine at Mount Sinai New York, NY, USA
- The Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai New York, NY, USA
| | - Michael Schotsaert
- Department of Microbiology, Icahn School of Medicine at Mount Sinai New York, NY, USA
- Global Health and Emerging Pathogens Institute, Icahn School of Medicine at Mount Sinai New York, NY, USA
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25
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Liu MJ, Chen H, Li W, Chen XX, Wang CH, Sun QY, Heng XY. SRT1720 enhances maturity and quality of oocytes in aged mice. Anim Sci J 2021; 92:e13608. [PMID: 34405491 DOI: 10.1111/asj.13608] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2021] [Revised: 04/01/2021] [Accepted: 04/21/2021] [Indexed: 11/29/2022]
Abstract
This study aims to investigate the morphology and distribution of mitochondria, spindles, and chromosomes in oocytes of aged mice and examine the effects of SRT1720 on oocyte maturation. C57BL/6J mice were divided into young (4-8 weeks) and aged groups (48-52 weeks). In vitro maturation media contained (0.05, 0.1, and 1.0 μM) SRT1720 and 0.1-μM dimethyl sulfoxide (DMSO control). The rate of chromosome misalignment and spindle misorientation in oocytes of aged mice were significantly higher than that of young mice (P < 0.01). Fluorescence intensity of mitochondria from oocytes of aged mice was significantly lower than that of young mice (P < 0.01). SRT1720 at 0.1 μM significantly improved oocyte maturation, fertilization, and blastocyst formation in aged mice compared with young mice (P < 0.01). Additionally, immunofluorescence intensity of mitochondria, normal spindle morphology, and chromosome alignment were notably enhanced with SRT1720 when compared with the DSMO control group for metaphase II (MII)-stage oocytes matured in vitro (P < 0.01); 0.1-μM SRT1720 enhanced the expression level of SRIT1 in oocytes from aged mice. In summary, the aged mice oocytes showed increased nuclear and cytoplasmic defects, whereas SRT1720 enhanced oocyte maturation and quality. We concluded that 0.1-μM SRT1720 was an appropriate concentration for in vitro maturation media.
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Affiliation(s)
- Mei-Ju Liu
- Department of Reproductive Medicine, Linyi People's Hospital, Shandong University, Linyi, China
- Institute of Zoology, Chinese Academy of Sciences, Beijing, China
| | - Hong Chen
- Department of Reproductive Medicine, Linyi People's Hospital, Shandong University, Linyi, China
- School of Clinical Medicine, Shandong First Medical University, Tai'an, China
| | - Wen Li
- Department of Reproductive Medicine, Linyi People's Hospital, Shandong University, Linyi, China
| | - Xin-Xia Chen
- School of Nursing, Shandong University, Jinan, China
| | - Chuan-Hong Wang
- Department of Reproductive Medicine, Linyi People's Hospital, Shandong University, Linyi, China
- School of Clinical Medicine, Shandong First Medical University, Tai'an, China
| | - Qing-Yuan Sun
- Fertility Preservation Lab, Reproductive Medicine Center, Guangdong Second Provincial General Hospital, Guangzhou, China
| | - Xue-Yuan Heng
- Department of Neurological Surgery, Linyi People's Hospital, Shandong University, Linyi, China
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26
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Long P, He M, Yan W, Chen W, Wei D, Wang S, Zhang Z, Ge W, Chen T. ALDH2 protects naturally aged mouse retina via inhibiting oxidative stress-related apoptosis and enhancing unfolded protein response in endoplasmic reticulum. Aging (Albany NY) 2020; 13:2750-2767. [PMID: 33411685 PMCID: PMC7880320 DOI: 10.18632/aging.202325] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2020] [Accepted: 10/01/2020] [Indexed: 12/14/2022]
Abstract
During the process of aging, the retina exhibits chronic oxidative stress (OS) damage. Our preliminary experiment showed that acetaldehyde dehydrogenase 2 (ALDH2) could alleviate retinal damage caused by OS. This study aimed to explore whether ALDH2 could inhibit mice retinal cell apoptosis and enhance the function of unfolded protein response in endoplasmic reticulum (UPRER) through reducing OS in aging process. Retinal function and structure in vivo and in vitro were examined in aged ALDH2+ overexpression mice and ALDH2 agonist Alda1-treated aged mice. Levels of ALDH2, endoplasmic reticulum stress (ERS), apoptosis and inflammatory cytokines were evaluated. Higher expression of ALDH2 was observed at the outer nuclear layer (ONL) and the inner nuclear layer (INL) in aged ALDH2+ overexpression and aged Alda1-treated mice. Moreover, aged ALDH2+ overexpression mice and aged Alda1-treated mice exhibited better retinal function and structure. Increased expression of glucose-regulated protein 78 (GRP78) and ERS-related protein phosphorylated eukaryotic initiation factor 2 (peIF2α) and decreased expression of apoptosis-related protein, including C/EBP homologous protein (CHOP), caspase12 and caspase9, and retinal inflammatory cytokines were detected in the retina of aged ALDH2+ overexpression mice and aged Alda1-treated mice. The expression of ALDH2 in the retina was decreased in aging process. ALDH2 could reduce retinal oxidative stress and apoptosis, strengthen UPRER during the aging process to improve retinal function and structure.
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Affiliation(s)
- Pan Long
- Department of General Practice, Xijing Hospital, Fourth Military Medical University, Xi'an 710032, Shaanxi Province, China.,Department of Ophthalmology, The General Hospital of Western Theater Command, Chengdu 610083, Sichuan Province, China.,Center of Clinical Aerospace Medicine, Fourth Military Medical University, Xi'an 710032, Shaanxi Province, China
| | - Mengshan He
- Department of Chinese Material Medical and Natural Medicines, Fourth Military Medical University, Xi'an 710032, Shaanxi Province, China.,Department of Pharmacy, Xijing Hospital, Fourth Military Medical University, Xi'an 710032, Shaanxi Province, China
| | - Weiming Yan
- Department of Ophthalmology, The 900th Hospital of Joint Logistic Support Force, PLA (Clinical Medical College of Fujian Medical University, Dongfang Hospital Affiliated to Xiamen University), Fuzhou 350025, Fujian Province, China
| | - Wei Chen
- Department of General Practice, Xijing Hospital, Fourth Military Medical University, Xi'an 710032, Shaanxi Province, China
| | - Dongyu Wei
- Center of Clinical Aerospace Medicine, Fourth Military Medical University, Xi'an 710032, Shaanxi Province, China.,Department of Aviation Medicine, Xijing Hospital, Fourth Military Medical University, Xi'an 710032, Shaanxi Province, China
| | - Siwang Wang
- Department of Chinese Material Medical and Natural Medicines, Fourth Military Medical University, Xi'an 710032, Shaanxi Province, China
| | - Zuoming Zhang
- Center of Clinical Aerospace Medicine, Fourth Military Medical University, Xi'an 710032, Shaanxi Province, China.,Department of Aviation Medicine, Xijing Hospital, Fourth Military Medical University, Xi'an 710032, Shaanxi Province, China
| | - Wei Ge
- Department of General Practice, Xijing Hospital, Fourth Military Medical University, Xi'an 710032, Shaanxi Province, China
| | - Tao Chen
- Center of Clinical Aerospace Medicine, Fourth Military Medical University, Xi'an 710032, Shaanxi Province, China.,Department of Aviation Medicine, Xijing Hospital, Fourth Military Medical University, Xi'an 710032, Shaanxi Province, China
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Xiao H, Wang L, Zhang T, Chen C, Chen H, Li S, Hu J, Lu H. Periosteum progenitors could stimulate bone regeneration in aged murine bone defect model. J Cell Mol Med 2020; 24:12199-12210. [PMID: 32931157 PMCID: PMC7579685 DOI: 10.1111/jcmm.15891] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2020] [Revised: 08/20/2020] [Accepted: 08/28/2020] [Indexed: 12/12/2022] Open
Abstract
Periosteal stem cells are critical for bone regeneration, while the numbers will decrease with age. This study focused on whether Prx1+ cell, a kind of periosteal stem cell, could stimulate bone regeneration in aged mice. Four weeks and 12 months old Prx1CreER‐GFP; Rosa26tdTomato mice were used to reveal the degree of Prx1+ cells participating in the femoral fracture healing procedure. One week, 8 weeks, 12 and 24 months old Prx1CreER‐GFP mice were used to analyse the real‐time distribution of Prx1+ cells. Twelve months old C57BL/6 male mice (n = 96) were used to create the bone defect model and, respectively, received hydrogel, hydrogel with Prx1− mesenchymal stem cells and hydrogel with Prx1+ cells. H&E staining, Synchrotron radiation‐microcomputed tomography and mechanical test were used to analyse the healing results. The results showed that tdTomato+ cells were involved in bone regeneration, especially in young mice. At the same time, GFP+ cells decreased significantly with age. The Prx1+ cells group could significantly improve bone regeneration in the murine bone defect model via directly differentiating into osteoblasts and had better osteogenic differentiation ability than Prx1− mesenchymal stem cells. Our finding revealed that the quantity of Prx1+ cells might account for decreased bone regeneration ability in aged mice, and transplantation of Prx1+ cells could improve bone regeneration at the bone defect site.
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Affiliation(s)
- Han Xiao
- Department of Sports Medicine, Xiangya Hospital, Central South University, Changsha, China.,Key Laboratory of Organ Injury, Aging and Regenerative Medicine of Hunan Province, Changsha, China.,Xiangya Hospital-International Chinese Musculoskeletal Research Society Sports Medicine Research Centre, Changsha, China.,Hunan Engineering Research Center of Sport and Health, Changsha, China
| | - Linfeng Wang
- Department of Sports Medicine, Xiangya Hospital, Central South University, Changsha, China.,Key Laboratory of Organ Injury, Aging and Regenerative Medicine of Hunan Province, Changsha, China.,Xiangya Hospital-International Chinese Musculoskeletal Research Society Sports Medicine Research Centre, Changsha, China.,Hunan Engineering Research Center of Sport and Health, Changsha, China
| | - Tao Zhang
- Department of Sports Medicine, Xiangya Hospital, Central South University, Changsha, China.,Key Laboratory of Organ Injury, Aging and Regenerative Medicine of Hunan Province, Changsha, China.,Xiangya Hospital-International Chinese Musculoskeletal Research Society Sports Medicine Research Centre, Changsha, China.,Hunan Engineering Research Center of Sport and Health, Changsha, China
| | - Can Chen
- Department of Sports Medicine, Xiangya Hospital, Central South University, Changsha, China.,Key Laboratory of Organ Injury, Aging and Regenerative Medicine of Hunan Province, Changsha, China.,Xiangya Hospital-International Chinese Musculoskeletal Research Society Sports Medicine Research Centre, Changsha, China.,Hunan Engineering Research Center of Sport and Health, Changsha, China
| | - Huabin Chen
- Department of Sports Medicine, Xiangya Hospital, Central South University, Changsha, China.,Key Laboratory of Organ Injury, Aging and Regenerative Medicine of Hunan Province, Changsha, China.,Xiangya Hospital-International Chinese Musculoskeletal Research Society Sports Medicine Research Centre, Changsha, China.,Hunan Engineering Research Center of Sport and Health, Changsha, China
| | - Shengcan Li
- Department of Sports Medicine, Xiangya Hospital, Central South University, Changsha, China.,Key Laboratory of Organ Injury, Aging and Regenerative Medicine of Hunan Province, Changsha, China.,Xiangya Hospital-International Chinese Musculoskeletal Research Society Sports Medicine Research Centre, Changsha, China.,Hunan Engineering Research Center of Sport and Health, Changsha, China
| | - Jianzhong Hu
- Key Laboratory of Organ Injury, Aging and Regenerative Medicine of Hunan Province, Changsha, China.,Xiangya Hospital-International Chinese Musculoskeletal Research Society Sports Medicine Research Centre, Changsha, China.,Hunan Engineering Research Center of Sport and Health, Changsha, China.,Department of Spine Surgery, Xiangya Hospital, Central South University, Changsha, China
| | - Hongbin Lu
- Department of Sports Medicine, Xiangya Hospital, Central South University, Changsha, China.,Key Laboratory of Organ Injury, Aging and Regenerative Medicine of Hunan Province, Changsha, China.,Xiangya Hospital-International Chinese Musculoskeletal Research Society Sports Medicine Research Centre, Changsha, China.,Hunan Engineering Research Center of Sport and Health, Changsha, China
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28
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Nishikawa N, Chakrabarty B, Kitney D, Jabr R, Kanai A, Fry C. Stretch- and carbachol-induced ATP release from bladder wall preparations of young and aged mice. Neurourol Urodyn 2020; 39:1644-1652. [PMID: 32531080 DOI: 10.1002/nau.24426] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2020] [Revised: 05/28/2020] [Accepted: 05/31/2020] [Indexed: 12/19/2022]
Abstract
AIMS Bladder wall stretch increases tissue tension and releases adenosine 5'-triphosphate (ATP) as part of a transduction process to sense bladder filling. Aging is associated with bladder fibrosis to produce a stiffer bladder wall: this may augment ATP release and contribute to age-dependent urgency. Muscarinic agonists also release ATP and present a potential target for antimuscarinic agents, but its age-dependency is unknown. This study aimed, in young and old mice, to: (a) quantify the relationship between bladder wall stiffness and stretch-dependent ATP release and; (b) characterize muscarinic agonist-dependent release. METHODS ATP release from young (9-12 weeks) and aged (24 months) mouse bladder wall was measured in vitro, with a luciferin-luciferase assay, after stretch or carbachol exposure. Bladder wall stiffness, measured simultaneously during stretch, was compared to histological proportions of connective tissue and detrusor muscle. RESULTS With young mice, stretch-activated ATP release required an intact mucosa and was positively associated with wall stiffness. ATP release by carbachol was about four-fold greater compared to stretch. With aged mice: ATP release varied a hundred-fold and no association with stiffness; carbachol release diminished; connective tissue and mucosa thickness increased. CONCLUSIONS With young mice, stretch, or muscarinic agonists potently induce bladder wall ATP release. Stretch-dependent release is proportional to bladder wall stiffness, independent of the extent of stretch. With aged mice dependence of stretch-activated ATP release with stiffness was lost. The huge variability of release suggests that aged mice do not form a homogenous cohort and may underlie the heterogeneity in bladder filling sensations.
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Affiliation(s)
- Nobuyuki Nishikawa
- The School of Physiology, Pharmacology & Neuroscience, University of Bristol, Bristol, UK.,School of Biosciences and Medicine, University of Surrey, Guildford, UK
| | - Basu Chakrabarty
- The School of Physiology, Pharmacology & Neuroscience, University of Bristol, Bristol, UK
| | - Darryl Kitney
- The School of Physiology, Pharmacology & Neuroscience, University of Bristol, Bristol, UK.,School of Biosciences and Medicine, University of Surrey, Guildford, UK
| | - Rita Jabr
- School of Biosciences and Medicine, University of Surrey, Guildford, UK
| | - Anthony Kanai
- School of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Christopher Fry
- The School of Physiology, Pharmacology & Neuroscience, University of Bristol, Bristol, UK
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Vassilieva EV, Taylor DW, Compans RW. Combination of STING Pathway Agonist With Saponin Is an Effective Adjuvant in Immunosenescent Mice. Front Immunol 2019; 10:3006. [PMID: 31921219 PMCID: PMC6935580 DOI: 10.3389/fimmu.2019.03006] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2019] [Accepted: 12/09/2019] [Indexed: 12/19/2022] Open
Abstract
There is an urgent need to improve protective responses to influenza vaccination in the elderly population, which is at especially high risk for adverse outcomes from influenza infection. Currently available inactivated vaccines provide limited protection, even when a 4-fold higher dose of the vaccine is administered. Adjuvants are often added to vaccines to boost protective efficacy. Here we describe a novel combination of an activator of the STING pathway, 2′,3′-cyclic guanosine monophosphate–adenosine monophosphate (cGAMP) with a saponin adjuvant, that we found to be highly effective in boosting protective immunity from vaccination in an aged mouse model. Using this combination with a subunit influenza vaccine, we observed that survival of vaccinated 20 month-old mice after lethal challenge increased from 0 to 20% with unadjuvanted vaccine to 80–100%, depending on the vaccination route. Compared to unadjuvanted vaccine, the levels of vaccine-specific IgG and IgG2a increased by almost two orders of magnitude as early as 2 weeks after a single immunization with the adjuvanted formulation. By analyzing phosphorylation of interferon regulatory factor 3 (IRF3) in cell culture, we provide evidence that the saponin component increases access of exogenous cGAMP to the intracellular STING pathway. Our findings suggest that combining a STING activator with a saponin-based adjuvant increases the effectiveness of influenza vaccine in aged hosts, without having to increase dose or perform additional vaccinations. This study reports a novel adjuvant combination that (a) is more effective than current methods of boosting vaccine efficacy, (b) can be used to enhance efficacy of licensed influenza vaccines, and (c) results in effective protection using a single vaccine dose.
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Affiliation(s)
- Elena V Vassilieva
- Department of Microbiology and Immunology, Emory Vaccine Center, Emory University School of Medicine, Atlanta, GA, United States
| | - Dahnide W Taylor
- Department of Microbiology and Immunology, Emory Vaccine Center, Emory University School of Medicine, Atlanta, GA, United States
| | - Richard W Compans
- Department of Microbiology and Immunology, Emory Vaccine Center, Emory University School of Medicine, Atlanta, GA, United States
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30
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Li H, Chen Q, Li C, Zhong R, Zhao Y, Zhang Q, Tong W, Zhu D, Zhang Y. Muscle-secreted granulocyte colony-stimulating factor functions as metabolic niche factor ameliorating loss of muscle stem cells in aged mice. EMBO J 2019; 38:e102154. [PMID: 31736098 DOI: 10.15252/embj.2019102154] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2019] [Revised: 09/18/2019] [Accepted: 10/07/2019] [Indexed: 01/14/2023] Open
Abstract
The function and number of muscle stem cells (satellite cells, SCs) decline with muscle aging. Although SCs are heterogeneous and different subpopulations have been identified, it remains unknown whether a specific subpopulation of muscle SCs selectively decreases during aging. Here, we find that the number of SCs expressing high level of transcription factor Pax7 (Pax7Hi ) is dramatically reduced in aged mice. Myofiber-secreted granulocyte colony-stimulating factor (G-CSF) regulates age-dependent loss of Pax7Hi cells, as the Pax7Hi SCs are replenished by exercise-induced G-CSF in aged mice. Mechanistically, we show that transcription of G-CSF (Csf3) gene in myofibers is regulated by MyoD in a metabolism-dependent manner. Furthermore, myofiber-secreted G-CSF acts as a metabolic niche factor required for establishing and maintaining the Pax7Hi SC subpopulation in adult and physiological aged mice by promoting the asymmetric division of Pax7Hi and Pax7Mi SCs. Together, our findings uncover that muscles provide a metabolic niche regulating Pax7 SC heterogeneity in mice.
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Affiliation(s)
- Hu Li
- The State Key Laboratory of Medical Molecular Biology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences and School of Basic Medicine, Peking Union Medical College, Beijing, China
| | - Qian Chen
- The State Key Laboratory of Medical Molecular Biology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences and School of Basic Medicine, Peking Union Medical College, Beijing, China
| | - Changyin Li
- The State Key Laboratory of Medical Molecular Biology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences and School of Basic Medicine, Peking Union Medical College, Beijing, China
| | - Ran Zhong
- The State Key Laboratory of Medical Molecular Biology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences and School of Basic Medicine, Peking Union Medical College, Beijing, China
| | - Yixia Zhao
- The State Key Laboratory of Medical Molecular Biology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences and School of Basic Medicine, Peking Union Medical College, Beijing, China
| | - Qianying Zhang
- The State Key Laboratory of Medical Molecular Biology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences and School of Basic Medicine, Peking Union Medical College, Beijing, China
| | - Weimin Tong
- Department of Pathology, Institute of Basic Medical Sciences Chinese Academy of Medical Science, School of Basic Medicine, Peking Union Medical College, Beijing, China.,Neuroscience Center, Chinese Academy of Medical Sciences, Beijing, China
| | - Dahai Zhu
- The State Key Laboratory of Medical Molecular Biology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences and School of Basic Medicine, Peking Union Medical College, Beijing, China.,Guangzhou Regenerative Medicine and Health Guangdong Laboratory, Guangzhou, China
| | - Yong Zhang
- The State Key Laboratory of Medical Molecular Biology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences and School of Basic Medicine, Peking Union Medical College, Beijing, China
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31
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Carcea M, Turfani V, Narducci V, Durazzo A, Finamore A, Roselli M, Rami R. Bread for the Aging Population: The Effect of a Functional Wheat-Lentil Bread on the Immune Function of Aged Mice. Foods 2019; 8:E510. [PMID: 31635240 DOI: 10.3390/foods8100510] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2019] [Revised: 10/15/2019] [Accepted: 10/16/2019] [Indexed: 01/01/2023] Open
Abstract
A functional bread tailored for the needs of the aging population was baked by substituting 24% of wheat flour with red lentil flour and compared with wheat bread. Its nutritional profile was assessed by analysing proteins, amino acids, lipids, soluble and insoluble dietary fibre, resistant starch, total polyphenols, lignans and the antioxidant capacity (FRAP assay). The wheat-lentil bread had 30% more proteins than wheat bread (8.3%, as is), a more balanced amino acids composition, an almost double mineral (0.63%, as is) as well as total dietary fibre content (4.6%, as is), double the amount of polyphenols (939.1 mg GAE/100g on dry matter, d.m.), higher amounts and variety of lignans, and more than double the antioxidant capacity (71.6 µmoL/g d.m.). The in vivo effect of 60 days bread consumption on the immune response was studied by means of a murine model of elderly mice. Serum cytokines and intraepithelial lymphocyte immunophenotype from the mice intestine were analysed as markers of systemic and intestinal inflammatory status, respectively. Analysis of immune parameters in intraepithelial lymphocytes showed significant differences among the two types of bread indicating a positive effect of the wheat-lentil bread on the intestinal immune system, whereas both breads induced a reduction in serum IL-10.
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Fujihara H, Nozaki T, Tsutsumi M, Isumi M, Shimoda S, Hamada Y, Masutani M. Spontaneous Development of Dental Dysplasia in Aged Parp-1 Knockout Mice. Cells 2019; 8:cells8101157. [PMID: 31569682 PMCID: PMC6829344 DOI: 10.3390/cells8101157] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2019] [Revised: 09/16/2019] [Accepted: 09/17/2019] [Indexed: 01/14/2023] Open
Abstract
Poly(ADP-ribose) polymerase (Parp)-1 catalyzes polyADP-ribosylation using NAD+ and is involved in the DNA damage response, genome stability, and transcription. In this study, we demonstrated that aged Parp-1-/- mouse incisors showed more frequent dental dysplasia in both ICR/129Sv mixed background and C57BL/6 strain compared to aged Parp-1+/+ incisors, suggesting that Parp-1 deficiency could be involved in development of dental dysplasia at an advanced age. Computed tomography images confirmed that dental dysplasia was observed at significantly higher incidences in Parp-1-/- mice. The relative calcification levels of Parp-1-/- incisors were higher in both enamel and dentin (p < 0.05). Immunohistochemical analysis revealed (1) Parp-1 positivity in ameloblasts and odontoblasts in Parp-1+/+ incisor, (2) weaker dentin sialoprotein positivity in dentin of Parp-1-/- incisor, and (3) bone sialoprotein positivity in dentin of Parp-1-/- incisor, suggesting ectopic osteogenic formation in dentin of Parp-1-/- incisor. These results indicate that Parp-1 deficiency promotes odontogenic failure in incisors at an advanced age. Parp-1 deficiency did not affect dentinogenesis during the development of mice, suggesting that Parp-1 is not essential in dentinogenesis during development but is possibly involved in the regulation of continuous dentinogenesis in the incisors at an advanced age.
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Affiliation(s)
- Hisako Fujihara
- Biochemistry Division, National Cancer Center Research Institute 5-1-1 Tsukiji, Chuo-ku, Tokyo 104-0045, Japan.
- Department of Oral and Maxillofacial Surgery, School of Dental Medicine, Tsurumi University 2-1-3 Tsurumi, Tsurumi-ku, Yokohama, Kanagawa 230-8501, Japan.
| | - Tadashige Nozaki
- Biochemistry Division, National Cancer Center Research Institute 5-1-1 Tsukiji, Chuo-ku, Tokyo 104-0045, Japan.
- Department of Pharmacology, Faculty of Dentistry, Osaka Dental University 8-1, Kuzuhahanazono-cho, Hirakata, Osaka 573-1121, Japan.
| | - Masahiro Tsutsumi
- Department of Pathology, Saiseikai Chuwa Hospital 323 Oaza Abe, Sakurai City, Nara 633-0054, Japan.
| | - Mayu Isumi
- Department of Frontier Life Sciences, Graduate School of Biochemical Science, Nagasaki University 1-7-1 Sakamoto, Nagasaki 852-8588, Japan.
| | - Shinji Shimoda
- Department of Oral Anatomy-1, School of Dental Medicine, Tsurumi University 2-1-3 Tsurumi, Tsurumi-ku, Yokohama, Kanagawa 230-8501, Japan.
| | - Yoshiki Hamada
- Department of Oral and Maxillofacial Surgery, School of Dental Medicine, Tsurumi University 2-1-3 Tsurumi, Tsurumi-ku, Yokohama, Kanagawa 230-8501, Japan.
| | - Mitsuko Masutani
- Biochemistry Division, National Cancer Center Research Institute 5-1-1 Tsukiji, Chuo-ku, Tokyo 104-0045, Japan.
- Department of Frontier Life Sciences, Graduate School of Biochemical Science, Nagasaki University 1-7-1 Sakamoto, Nagasaki 852-8588, Japan.
- Division of Cellular Signaling, National Cancer Center Research Institute 5-1-1 Tsukiji, Chuo-ku, Tokyo 104-0045, Japan.
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Abstract
Aging is associated with distinct changes in immune cells and a decline in immune function, leading to increased susceptibility to infection and reduced responses to vaccination. Certain strains of lactic acid bacteria exert beneficial effects on the immune system. Previously, we reported that Weissella cibaria JW15 isolated from kimchi possesses immune stimulatory activity in vitro. In the present study, we further investigated whether oral administration of JW15 improves immune function in aged mice. Eighteen-month-old female mice were administered JW15 daily at low (JW15-L; 1 × 10⁸ CFU/mouse) or high dosage (JW15-H; 1 × 10⁹ CFU/mouse), or with Lactobacillus rhamnosus GG (LGG) using oral gavage. Twomonth- old female mice were included as healthy young mice. After 4 weeks, the mice were euthanized and immune profiles were analyzed using whole blood and spleen. In complete blood count analysis, the numbers of white and red blood cells were significantly increased in the JW15-L group compared with those in the old mouse (OM) control group. In addition, administration of either JW15 of LGG resulted in higher numbers of splenocytes in comparison with the OM group. Furthermore, proliferative potentials were higher in all probiotic groups than OM. Cytokines such as IFN-γ and IL-6 were secreted at higher levels in splenocytes isolated from JW15-fed mice than in OM control mice. Similarly, mRNA expression of various cytokines was altered in the JW15 groups. Collectively, these results suggest that JW15 supplementation induces immunomodulatory effects in aged mice and indicate JW15 as a potential probiotic strain to improve immune function in aged animals.
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Affiliation(s)
- Ho-Eun Park
- Veterinary Medical Center and College of Veterinary Medicine, Chungbuk National University, Cheongju 28644, Republic of Korea
| | - Kyung-Won Kang
- College of Environmental and Bioresource Sciences, Chonbuk National University, Iksan 54596, Republic of Korea
| | - Bum-Seok Kim
- College of Veterinary Medicine, Chonbuk National University, Iksan 54596, Republic of Korea
| | - Sang-Myeong Lee
- College of Environmental and Bioresource Sciences, Chonbuk National University, Iksan 54596, Republic of Korea
| | - Wan-Kyu Lee
- Veterinary Medical Center and College of Veterinary Medicine, Chungbuk National University, Cheongju 28644, Republic of Korea
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McKenzie JA, Maschhoff C, Liu X, Migotsky N, Silva MJ, Gardner MJ. Activation of hedgehog signaling by systemic agonist improves fracture healing in aged mice. J Orthop Res 2019; 37:51-59. [PMID: 29663560 PMCID: PMC6226344 DOI: 10.1002/jor.24017] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/21/2017] [Accepted: 04/04/2018] [Indexed: 02/04/2023]
Abstract
Fracture healing is a complex process of many coordinated biological pathways. This system can go awry resulting in nonunion, which leads to significant patient morbidity. The Hedgehog (Hh) signaling pathway is upregulated in fracture healing. We hypothesized that the Hh signaling pathway can be pharmacologically modulated to positively affect fracture healing. Diaphyseal femur fractures were created in elderly mice (18 months, C57BL/6 females), which have a blunted and delayed healing response compared to younger mice, and were stabilized with intramedullary pins. To activate the Hh pathway we targeted the receptor Smoothened using an agonist (Hh-Ag1.5 [Hh-Ag]) and compared this to a vehicle control. Expression of Hh target genes were significantly increased in the fracture callus of the agonist group compared to controls, indicating pathway activation. Expression of osteogenic and chondrogenic-related genes was greatly upregulated in fracture callus versus intact femora, although Hh agonist treatment did not consistently enhance this response. Blindly graded, radiographic callus healing scores were significantly higher in the Hh-Ag groups at post operative day (POD) 14, indicating earlier callus bridging. On microCT, Hh-Ag treatment led to greater callus volume (+40%) and bone volume (+25%) at POD21. By day 14, callus vascularity, as assessed by 3D microCT angiography vessel volume, was 85% greater in the Hh-Ag group. Finally, mechanical strength of the calluses in the Hh-Ag groups was significantly greater than in the control groups at POD21. In conclusion, systemic administration of a Hh agonist appears to improve the osseous and vascular healing responses in a mouse fracture healing-impaired model. © 2018 Orthopaedic Research Society. Published by Wiley Periodicals, Inc. J Orthop Res.
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Affiliation(s)
| | | | - Xiaochen Liu
- Washington University Orthopedics, St. Louis, MO
| | | | | | - Michael J. Gardner
- Washington University Orthopedics, St. Louis, MO,Stanford University Orthopedics, Stanford, CA
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Liu MJ, Sun AG, Zhao SG, Liu H, Ma SY, Li M, Huai YX, Zhao H, Liu HB. Resveratrol improves in vitro maturation of oocytes in aged mice and humans. Fertil Steril 2018; 109:900-907. [PMID: 29778389 DOI: 10.1016/j.fertnstert.2018.01.020] [Citation(s) in RCA: 68] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2017] [Revised: 01/10/2018] [Accepted: 01/16/2018] [Indexed: 12/31/2022]
Abstract
OBJECTIVE To evaluate the effects of resveratrol on oocyte maturation in aged mice and humans. DESIGN Experimental laboratory study. SETTING University-based reproductive medicine center. PATIENT(S) A total of 64 women 38-45 years of age undergoing intracytoplasmic sperm injection (ICSI) and 48-52-week-old female C57BL/6J mice. INTERVENTION(S) In vitro culture in the presence of three different concentrations of resveratrol (0.1, 1.0, and 10 μm) or dimethylsulfoxide. MAIN OUTCOME MEASURE(S) Parameters of oocyte nuclear maturation, fertilization, immunofluorescence intensity of mitochondria, and normal morphology of spindle and chromosome of oocytes undergoing in vitro maturation (IVM) in aged mice and humans; blastocyst formation and levels of SRIT1, CAT, SOD1, and GPX4 gene expressions in aged mice. RESULT(S) Resveratrol at 1.0 μm significantly increased first polar body emission rate in oocytes derived from aged mice and humans, and an increased percentage of fertilization and blastocyst formation was observed in aged mice. In addition, immunofluorescence intensity of mitochondria and normal morphology of spindle and chromosome of oocytes undergoing IVM were notably improved compared with control samples in aged mice and human. Furthermore, the use of resveratrol exhibited enhanced expression patterns of SRIT1, CAT, SOD1, and GPX4 in aged mice. CONCLUSION(S) Resveratrol induced oocyte maturation and blastocyst formation in aged mice, and improved oocyte maturation and quality was examined in aged humans. In conclusion, 1.0 μm resveratrol was the appropriate concentration in IVM medium.
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Affiliation(s)
- Mei-Ju Liu
- Center for Reproductive Medicine, Shandong University, Jinan, People's Republic of China; Key Laboratory of Reproductive Endocrinology, Shandong University, Jinan, People's Republic of China; National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Jinan, People's Republic of China; Department of Reproductive Medicine, Linyi People's Hospital, Linyi, People's Republic of China
| | - Ai-Gang Sun
- Department of Neurological Surgery, Linyi People's Hospital, Linyi, People's Republic of China
| | - Shi-Gang Zhao
- Center for Reproductive Medicine, Shandong University, Jinan, People's Republic of China
| | - Hui Liu
- Center for Reproductive Medicine, Shandong University, Jinan, People's Republic of China
| | - Shui-Ying Ma
- Center for Reproductive Medicine, Shandong University, Jinan, People's Republic of China
| | - Mei Li
- Center for Reproductive Medicine, Shandong University, Jinan, People's Republic of China
| | - Ying-Xue Huai
- Center for Reproductive Medicine, Shandong University, Jinan, People's Republic of China
| | - Han Zhao
- Center for Reproductive Medicine, Shandong University, Jinan, People's Republic of China
| | - Hong-Bin Liu
- Center for Reproductive Medicine, Shandong University, Jinan, People's Republic of China.
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Wang L, Cao M, Pu T, Huang H, Marshall C, Xiao M. Enriched Physical Environment Attenuates Spatial and Social Memory Impairments of Aged Socially Isolated Mice. Int J Neuropsychopharmacol 2018; 21:1114-1127. [PMID: 30247630 PMCID: PMC6276026 DOI: 10.1093/ijnp/pyy084] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/13/2018] [Accepted: 09/19/2018] [Indexed: 12/25/2022] Open
Abstract
BACKGROUND Social isolation in the elderly is one of the principal health risks in an aging society. Physical environmental enrichment is shown to improve sensory, cognitive, and motor functions, but it is unknown whether environmental enrichment can protect against brain impairments caused by social isolation. METHODS Eighteen-month-old mice were housed, either grouped or isolated, in a standard or enriched environment for 2 months, respectively. Behavioral tests were performed to evaluate cognitive functional and social interaction ability. Synaptic protein levels, myelination, neuroinflammation, brain derived neurotrophic factor, and NOD-like receptor protein 3 inflammasome signaling pathways were examined in the medial prefrontal cortex and hippocampus. RESULTS Isolated aged mice exhibited declines in spatial memory and social memory compared with age-matched littermates living within group housing. The aforementioned memory malfunctions were mitigated in isolated aged mice that were housed in a large cage with a running wheel and novel toys. Enriched housing prevented synaptic protein loss, myelination defects, and downregulation of brain derived neurotrophic factor, while also increasing interleukin 1 beta and tumor necrosis factor alpha in the medial prefrontal cortex and hippocampus of isolated mice. In addition, activation of glial cells and NOD-like receptor protein 3 inflammasomes was partially ameliorated in the hippocampus of isolated mice treated with physical environmental enrichment. CONCLUSIONS These results suggest that an enriched physical environment program may serve as a nonpharmacological intervention candidate to help maintain healthy brain function of elderly people living alone.
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Affiliation(s)
- Linmei Wang
- Jiangsu Key Laboratory of Neurodegeneration, Nanjing Medical University, Nanjing, Jiangsu, China
| | - Min Cao
- Key Laboratory for Aging & Disease, Sir Run Run Shaw Hospital, Nanjing Medical University, Nanjing, Jiangsu, China
| | - Tinglin Pu
- Jiangsu Key Laboratory of Neurodegeneration, Nanjing Medical University, Nanjing, Jiangsu, China
| | - Huang Huang
- Key Laboratory for Aging & Disease, Sir Run Run Shaw Hospital, Nanjing Medical University, Nanjing, Jiangsu, China
| | - Charles Marshall
- Department of Rehabilitation Sciences, University of Kentucky Center for Excellence in Rural Health, Hazard, Kentucky
| | - Ming Xiao
- Jiangsu Key Laboratory of Neurodegeneration, Nanjing Medical University, Nanjing, Jiangsu, China,Correspondence: Ming Xiao, MD, PhD, Jiangsu Key Laboratory of Neurodegeneration, Nanjing Medical University, 101 Longmian Avenue, Nanjing, Jiangsu, 211166, China ()
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Gruden MA, Davydova TV, Kudrin VS, Wang C, Narkevich VB, Morozova-Roche LA, Sewell RDE. S100A9 Protein Aggregates Boost Hippocampal Glutamate Modifying Monoaminergic Neurochemistry: A Glutamate Antibody Sensitive Outcome on Alzheimer-like Memory Decline. ACS Chem Neurosci 2018; 9:568-577. [PMID: 29160692 DOI: 10.1021/acschemneuro.7b00379] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
Alzheimer's disease (AD) involves dementia conceivably arising from integrated inflammatory processes, amyloidogenesis, and neuronal apoptosis. Glutamate can also cause neuronal death via excitotoxicity, and this is similarly implicated in some neurological diseases. The aim was to examine treatment with in vitro generated proinflammatory protein S100A9 aggregate species alone or with glutamate antibodies (Glu-Abs) on Morris water maze (MWM) spatial learning and memory performance in 12 month old mice. Amino acid and monoamine cerebral neurotransmitter metabolic changes were concurrently monitored. Initially, S100A9 fibrils were morphologically verified by atomic force microscopy and Thioflavin T assay. They were then administered intranasally alone or with Glu-Abs for 14 days followed by a 5 day MWM protocol before hippocampal and prefrontal cortical neurochemical analysis. S100A9 aggregates evoked spatial amnesia which correlated with disrupted glutamate and dopaminergic neurochemistry. Hippocampal glutamate release, elevation of DOPAC and HVA, as well as DOPAC/DA and HVA/DA ratios were subsequently reduced by Glu-Abs which simultaneously prevented the spatial memory deficit. The present outcomes emphasized the pathogenic nature of S100A9 fibrillar aggregates in causing spatial memory amnesia associated with enhanced hippocampal glutamate release and DA-ergic disruption in the aging brain. This finding might be exploited during dementia management through a neuroprotective strategy.
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Affiliation(s)
- Marina A. Gruden
- P. K. Anokhin Research Institute of Normal Physiology, Moscow 125315 Russia
| | - Tatiana V. Davydova
- Research Institute of General Pathology and Pathophysiology, Moscow 125315 Russia
| | | | - Chao Wang
- Department of Medical Biochemistry and Biophysics, Umeå University, Umeå SE-90187, Sweden
| | | | | | - Robert D. E. Sewell
- Cardiff School of Pharmacy and Pharmaceutical Sciences, Cardiff University, Cardiff CF10 3NB, United Kingdom
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Abstract
The gut microbiota is a contributing factor in obesity-related metabolic disorders. The effect of metformin on the gut microbiota has been reported; however, the relationship between the gut microbiota and the mechanism of action of metformin in elderly individuals is unclear. In this study, the effect of metformin on the gut microbiota was investigated in aged obese mice. The abundance of the genera Akkermansia, Bacteroides, Butyricimonas, and Parabacteroides was significantly increased by metformin in mice fed a high-fat diet. Metformin treatment decreased the expression of IL-1β and IL-6 in epididymal fat, which was correlated with the abundance of various bacterial genera. In addition, both fecal microbiota transplantation from metformin-treated mice and extracellular vesicles of Akkermansia muciniphila improved the body weight and lipid profiles of the mice. Our findings suggest that modulation of the gut microbiota by metformin results in metabolic improvements in aged mice, and that these effects are associated with inflammatory immune responses.
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Affiliation(s)
- Heetae Lee
- College of Pharmacy, Sahmyook University, Seoul, Korea
| | - Youngjoo Lee
- College of Pharmacy, Sahmyook University, Seoul, Korea
| | - Jiyeon Kim
- College of Pharmacy, Sahmyook University, Seoul, Korea
| | - Jinho An
- College of Pharmacy, Sahmyook University, Seoul, Korea
| | - Sungwon Lee
- College of Pharmacy, Sahmyook University, Seoul, Korea
| | - Hyunseok Kong
- College of Pharmacy, Sahmyook University, Seoul, Korea
| | | | - Chong-Kil Lee
- College of Pharmacy, Chungbuk National University, Cheongju, Korea
| | - Kyungjae Kim
- College of Pharmacy, Sahmyook University, Seoul, Korea,CONTACT Kyungjae Kim College of Pharmacy, Sahmyook University, 815 Hwarang-ro, Nowon-gu, Seoul 01795, Korea
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Yamada C, Mogami S, Hattori T. Psychological stress exposure to aged mice causes abnormal feeding patterns with changes in the bout number. Aging (Albany NY) 2017; 9:2269-2287. [PMID: 29129830 PMCID: PMC5723686 DOI: 10.18632/aging.101320] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2017] [Accepted: 11/02/2017] [Indexed: 12/11/2022]
Abstract
Stress responses are affected by aging. However, studies on stress-related changes in feeding patterns with aging subject are minimal. We investigated feeding patterns induced by two psychological stress models, revealing characteristics of stress-induced feeding patterns as “meal” and “bout” (defined as the minimum feeding behavior parameters) in aged mice. Feeding behaviors of C57BL/6J mice were monitored for 24 h by an automatic monitoring device. Novelty stress reduced the meal amount over the 24 h in both young and aged mice, but as a result of a time course study it was persistent in aged mice. In addition, the decreased bout number was more pronounced in aged mice than in young mice. The 24-h meal and bout parameters did not change in either the young or aged mice following water avoidance stress (WAS). However, the meal amount and bout number increased in aged mice for 0–6 h after WAS exposure but remained unchanged in young mice. Our findings suggest that changes in bout number may lead to abnormal stress-related feeding patterns and may be one tool for evaluating eating abnormality in aged mice.
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Affiliation(s)
- Chihiro Yamada
- Tsumura Research Laboratories, Tsumura & Co., Ibaraki, Japan
| | - Sachiko Mogami
- Tsumura Research Laboratories, Tsumura & Co., Ibaraki, Japan
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Tashiro J, Rubio GA, Limper AH, Williams K, Elliot SJ, Ninou I, Aidinis V, Tzouvelekis A, Glassberg MK. Exploring Animal Models That Resemble Idiopathic Pulmonary Fibrosis. Front Med (Lausanne) 2017; 4:118. [PMID: 28804709 PMCID: PMC5532376 DOI: 10.3389/fmed.2017.00118] [Citation(s) in RCA: 168] [Impact Index Per Article: 24.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2017] [Accepted: 07/11/2017] [Indexed: 02/03/2023] Open
Abstract
Large multicenter clinical trials have led to two recently approved drugs for patients with idiopathic pulmonary fibrosis (IPF); yet, both of these therapies only slow disease progression and do not provide a definitive cure. Traditionally, preclinical trials have utilized mouse models of bleomycin (BLM)-induced pulmonary fibrosis—though several limitations prevent direct translation to human IPF. Spontaneous pulmonary fibrosis occurs in other animal species, including dogs, horses, donkeys, and cats. While the fibrotic lungs of these animals share many characteristics with lungs of patients with IPF, current veterinary classifications of fibrotic lung disease are not entirely equivalent. Additional studies that profile these examples of spontaneous fibroses in animals for similarities to human IPF should prove useful for both human and animal investigators. In the meantime, studies of BLM-induced fibrosis in aged male mice remain the most clinically relevant model for preclinical study for human IPF. Addressing issues such as time course of treatment, animal size and characteristics, clinically irrelevant treatment endpoints, and reproducibility of therapeutic outcomes will improve the current status of preclinical studies. Elucidating the mechanisms responsible for the development of fibrosis and disrepair associated with aging through a collaborative approach between researchers will promote the development of models that more accurately represent the realm of interstitial lung diseases in humans.
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Affiliation(s)
- Jun Tashiro
- Department of Surgery, University of Miami Miller School of Medicine, Miami, FL, United States
| | - Gustavo A Rubio
- Department of Surgery, University of Miami Miller School of Medicine, Miami, FL, United States
| | - Andrew H Limper
- Department of Medicine, Mayo Clinic College of Medicine, Rochester, MN, United States
| | - Kurt Williams
- Department Pathobiology and Diagnostic Investigations, College of Veterinary Medicine, Michigan State University, East Lansing, MI, United States
| | - Sharon J Elliot
- Department of Surgery, University of Miami Miller School of Medicine, Miami, FL, United States
| | - Ioanna Ninou
- Division of Immunology, Biomedical Sciences Research Center "Alexander Fleming", Athens, Greece
| | - Vassilis Aidinis
- Division of Immunology, Biomedical Sciences Research Center "Alexander Fleming", Athens, Greece
| | - Argyrios Tzouvelekis
- Division of Immunology, Biomedical Sciences Research Center "Alexander Fleming", Athens, Greece
| | - Marilyn K Glassberg
- Department of Surgery, University of Miami Miller School of Medicine, Miami, FL, United States.,Department of Medicine, University of Miami Miller School of Medicine, Miami, FL, United States
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Wang L, Pang M, Wang X, Wang P, Xiao Y, Liu Q. Characteristics, composition, and antioxidant activities in vitro and in vivo of Gynostemma pentaphyllum (Thunb.) Makino seed oil. J Sci Food Agric 2017; 97:2084-2093. [PMID: 27569782 DOI: 10.1002/jsfa.8013] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/08/2015] [Revised: 08/07/2016] [Accepted: 08/25/2016] [Indexed: 06/06/2023]
Abstract
BACKGROUND In order to further develop and utilise Gynostemma pentaphyllum (Thunb.) Makino seeds, a detailed analysis of the characteristics of G. pentaphyllum seed oil (GPSO), including its physico-chemical parameters, fatty acid composition and unsaponifiable matter constituents, has been investigated in this study. The antioxidant potential of GPSO was evaluated by radical-scavenging activity and ferric-reducing antioxidant power assay in vitro, and the antioxidant activity in vivo was examined by using an aged mice model. RESULTS The main components of the seeds are lipids (485.54 g kg-1 ) and proteins (203.26 g kg-1 ). The GPSO obtained by supercritical CO2 fluid extraction was rich in polyunsaturated fatty acids (92.85%), especially conjugated linolenic acid (88.17%); and various useful compounds (squalene, tocopherol and phytosterols) were identified in the unsaponifiable matter. The overall antioxidant capacity of GPSO in vitro was shown to be comparable to that of Camellia seed oil as a positive control. GPSO could provide protection to the aged mice against oxidative stress and minimised the impact of ageing. CONCLUSION All the results suggest that GPSO has direct and potent antioxidant activities; it could be utilised as a functional food to supplement or replace some conventional oils. © 2016 Society of Chemical Industry.
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Affiliation(s)
- Lu Wang
- Key Laboratory of Medicinal Plant Resources and Natural Pharmaceutical Chemistry, College of Life Sciences, Shaanxi Normal University, Xi'an, 710062, P.R. China
| | - Min Pang
- School of Biotechnology and Food Engineering, Hefei University of Technology, Hefei, 230009, P.R. China
| | - Xiaobing Wang
- Key Laboratory of Medicinal Plant Resources and Natural Pharmaceutical Chemistry, College of Life Sciences, Shaanxi Normal University, Xi'an, 710062, P.R. China
| | - Pan Wang
- Key Laboratory of Medicinal Plant Resources and Natural Pharmaceutical Chemistry, College of Life Sciences, Shaanxi Normal University, Xi'an, 710062, P.R. China
| | - Yaping Xiao
- Key Laboratory of Medicinal Plant Resources and Natural Pharmaceutical Chemistry, College of Life Sciences, Shaanxi Normal University, Xi'an, 710062, P.R. China
| | - Quanhong Liu
- Key Laboratory of Medicinal Plant Resources and Natural Pharmaceutical Chemistry, College of Life Sciences, Shaanxi Normal University, Xi'an, 710062, P.R. China
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Mecklenburg J, Patil MJ, Koek W, Akopian AN. Effects of local and spinal administrations of mu-opioids on postoperative pain in aged versus adult mice. Pain Rep 2017; 2:e584. [PMID: 28626834 PMCID: PMC5469295 DOI: 10.1097/pr9.0000000000000584] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2016] [Revised: 11/28/2016] [Accepted: 11/30/2016] [Indexed: 11/26/2022] Open
Abstract
Introduction Suboptimal management of postoperative pain leads to increased risk of chronic opioid therapy, especially in elderly patients. Objectives Although this age-dependent phenomenon has been observed clinically, basic mechanisms including baseline nociception, postoperative hypersensitivity, and mu-opioid efficiency in aged animals have never been evaluated. Methods We tested these criteria using incision model on adult (3–6 months) and aged (24 months) mice to assess translatability of postoperative animal studies to clinical observations. Results Thermal and mechanical testing revealed lower baseline nociception in aged vs adult mice, while behavioral assays after hind paw plantar incision showed similar hypersensitivity levels for both age groups. Efficiency of local and spinal mu-opioid injections on postoperative pain was assessed next. DAMGO, a pure mu-opioid, was effective in reducing postoperative hypersensitivity in aged and adult mice, although adult mice displayed increased sensitivity to higher doses (50 μg local; 1–15 μg spinal). Buprenorphine, a mixed mu-opioid agonist, produced dose-dependent antihypersensitivity with adult mice more sensitive to lower doses (0.1 μg local; 0.02 μg spinal), and aged mice more sensitive to higher doses (1, 10 μg local; 0.1, 1 μg spinal). Finally, exploratory locomotor activity was used to evaluate the suppression of incision-induced spontaneous pain by DAMGO. Spinal and systemic (intraperitoneal) DAMGO inhibited ongoing pain more in adults compared with aged mice. Conclusion As in humans, baseline nociception was lower in aged vs adult mice, while postoperative hypersensitivity magnitudes were comparable between groups. Unlike in humans, adult mice were more sensitive to mu-opioids, although higher doses of mixed mu-opioids were more effective for postoperative antihypersensitivity in aged mice.
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Affiliation(s)
- Jennifer Mecklenburg
- Department of Endodontics, School of Dentistry, UT Health Science Center, San Antonio, TX, USA
| | - Mayur J. Patil
- Department of Psychiatry, School of Medicine, UT Health Science Center, San Antonio, TX, USA
| | - Wouter Koek
- Department of Psychiatry, School of Medicine, UT Health Science Center, San Antonio, TX, USA
- Department of Pharmacology, UT Health Science Center, San Antonio, TX, USA
| | - Armen N. Akopian
- Department of Endodontics, School of Dentistry, UT Health Science Center, San Antonio, TX, USA
- Department of Pharmacology, UT Health Science Center, San Antonio, TX, USA
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Neri-Gómez T, Espinosa-Raya J, Díaz-Cintra S, Segura-Uribe J, Orozco-Suárez S, Gallardo JM, Guerra-Araiza C. Tibolone modulates neuronal plasticity through regulating Tau, GSK3β/Akt/PI3K pathway and CDK5 p35/p25 complexes in the hippocampus of aged male mice. Neural Regen Res 2017; 12:588-595. [PMID: 28553339 PMCID: PMC5436357 DOI: 10.4103/1673-5374.205098] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
Aging is a key risk factor for cognitive decline and age-related neurodegenerative disorders. Also, an age-related decrease in sex steroid hormones may have a negative impact on the formation of neurofibrillary tangles (NFTs); these hormones can regulate Tau phosphorylation and the principal kinase GSK3β involved in this process. Hormone replacement therapy decreases NFTs, but it increases the risk of some types of cancer. However, other synthetic hormones such as tibolone (TIB) have been used for hormone replacement therapy. The aim of this work was to evaluate the long-term effects of TIB (0.01 mg/kg and 1 mg/kg, intragastrically for 12 weeks) on the content of total and hyperphosphorylated Tau (PHF-1) proteins and the regulation of GSK3β/Akt/PI3K pathway and CDK5/p35/p25 complexes in the hippocampus of aged male mice. We observed that the content of PHF-1 decreased with TIB administration. In contrast, no changes were observed in the active form of GSK3β or PI3K. TIB decreased the expression of the total and phosphorylated form of Akt while increased that of p110 and p85. The content of CDK5 was differentially modified with TIB: it was increased at low doses and decreased at high doses. When we analyzed the content of CDK5 activators, an increase was found on p35; however, the content of p25 decreased with administration of low dose of TIB. Our results suggest a possible mechanism of action of TIB in the hippocampus of aged male mice. Through the regulation of Tau and GSK3β/Akt/PI3K pathway, and CDK5/p35/p25 complexes, TIB may modulate neuronal plasticity and regulate learning and memory processes.
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Affiliation(s)
- Teresa Neri-Gómez
- Unidad de Investigación Médica en Farmacología, Hospital de Especialidades, Centro Médico Nacional Siglo XXI, Instituto Mexicano del Seguro Social, Ciudad de México, México.,Laboratorio de Farmacología Conductual, Escuela Superior de Medicina, Instituto Politécnico Nacional, Plan de San Luis y Díaz Mirón Col. Sto. Tomás, Ciudad de México, México
| | - Judith Espinosa-Raya
- Laboratorio de Farmacología Conductual, Escuela Superior de Medicina, Instituto Politécnico Nacional, Plan de San Luis y Díaz Mirón Col. Sto. Tomás, Ciudad de México, México
| | - Sofía Díaz-Cintra
- Departamento de Neurobiología del Desarrollo y Neurofisiología, Instituto de Neurobiología, Universidad Nacional Autónoma de México Campus Juriquilla, Querétaro, Querétaro, México
| | - Julia Segura-Uribe
- Enfermedades Neurológicas (Neurological Diseases), Hospital de Especialidades, Centro Médico Nacional Siglo XXI, Instituto Mexicano del Seguro Social, Ciudad de México, México
| | - Sandra Orozco-Suárez
- Enfermedades Neurológicas (Neurological Diseases), Hospital de Especialidades, Centro Médico Nacional Siglo XXI, Instituto Mexicano del Seguro Social, Ciudad de México, México
| | - Juan Manuel Gallardo
- Enfermedades Nefrológicas (Kidney Diseases), Hospital de Especialidades, Centro Medico Nacional Siglo XXI, Instituto Mexicano del Seguro Social, Ciudad de Mexico, Mexico
| | - Christian Guerra-Araiza
- Unidad de Investigación Médica en Farmacología, Hospital de Especialidades, Centro Médico Nacional Siglo XXI, Instituto Mexicano del Seguro Social, Ciudad de México, México
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Gao W, Wu J, Wei J, Pu L, Guo C, Yang J, Yang M, Luo H. Brazilian green propolis improves immune function in aged mice. J Clin Biochem Nutr 2014; 55:7-10. [PMID: 25120274 PMCID: PMC4078064 DOI: 10.3164/jcbn.13-70] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2013] [Accepted: 12/04/2013] [Indexed: 01/18/2023] Open
Abstract
Aging weakened innate and adaptive immunity both quantitatively and qualitatively. Some components in propolis could stimulate immune function in young animals or cultured immune cells in vitro. Few studies had been carried out in the aged. The present study was to evaluate the effects of Brazilian green propolis supplementation on the immunological parameters in aged mice. Eighty Kunming mice, aged 15–18 months, were randomly assigned to the control and three experimental groups supplemented with different doses (83.3, 157.4 and 352.9 mg/kg.bw respectively) of Brazilian green propolis. The experiment lasted for 4 weeks. Contents of total polyphenol, flavonoid, cinnamic acid and artepillin-C in Brazilian green propolis were analyzed. Splenic NK cytotoxic, T lymphocyte proliferation and antibody generation cells, as well as the phagocytosis of peritoneal macrophages, ear swelling, and serum contents of IgG, IgM, hemolysin and cytokines were measured. After 4 weeks of treatment, the phagocytosis of peritoneal macrophages was enhanced in 157.4 mg/kg and 352.9 mg/kg groups. Ear swelling increased in all propolis treatmented groups. Antibodies specific to sheep erythrocytes were higher in the groups receiving 157.4 and 352.9 mg/kg.bw than that of control group. IgG level dramatically increased in the groups receiving 83.3 and 157.4 mg/kg.bw in comparison to the control group. These results indicate that administration of Brazilian green propolis have a positive effect on innate and adaptive immunity in aged mice.
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Affiliation(s)
- Weina Gao
- Institute of Health and Environmental Medicine, Tianjin, 300050, China
| | - Jianquan Wu
- Institute of Health and Environmental Medicine, Tianjin, 300050, China
| | - Jingyu Wei
- Institute of Health and Environmental Medicine, Tianjin, 300050, China
| | - Lingling Pu
- Institute of Health and Environmental Medicine, Tianjin, 300050, China
| | - Changjiang Guo
- Institute of Health and Environmental Medicine, Tianjin, 300050, China
| | - Jijun Yang
- Institute of Health and Environmental Medicine, Tianjin, 300050, China
| | - Ming Yang
- By-Health Nutrition and Health Research Center, 510620, China
| | - Haiji Luo
- By-Health Nutrition and Health Research Center, 510620, China
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Concannon MA, Jiang J. The effect of adjuvants on vaccine-induced antibody response against influenza in aged mice. ACTA ACUST UNITED AC 2014; 9:89-94. [PMID: 32215006 PMCID: PMC7089211 DOI: 10.1007/s11515-014-1301-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2014] [Accepted: 02/21/2014] [Indexed: 11/26/2022]
Abstract
While influenza remains a major threat to public health, researchers continue to search for a universal solution to improving the efficacy of the influenza vaccine. Even though influenza affects people of all different ages, it can be extremely hazardous to people of 65 years of age or older since that is the population that makes up the high majority of the death toll caused by influenza-related diseases. Elderly individuals suffer the effects of immunosenescence as they age, which is the diminishing of the overall immune response. Immunosenescence occurs by specifically affecting the adaptive immune response which controls the establishment of immunity after vaccination or infection. There are many studies under way that are trying to find a resolution to the problem of the influenza vaccine not providing enough protection in the elderly population. One of the possible strategies is to seek the use of an optimal adjuvant, an immunological agent that can enhance immune responses, with the current vaccine formulation. Here, we used the murine model to review the effects of adjuvants on the antibody response to influenza vaccines in aged mice. Since adjuvants can enhance the production of important inflammatory cytokines and activation of dendritic cells, the stimulation of these cells are boosted to increase the effectiveness of the influenza vaccine in aged mice which would hopefully translate to the elderly.
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Affiliation(s)
- Mark A. Concannon
- Department of Biology, Drexel University, Philadelphia, PA 19104 USA
| | - Jiu Jiang
- Department of Biology, Drexel University, Philadelphia, PA 19104 USA
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Miao J, Shen LH, Tang YH, Wang YT, Tao MX, Jin KL, Zhao YJ, Yang GY. Overexpression of adiponectin improves neurobehavioral outcomes after focal cerebral ischemia in aged mice. CNS Neurosci Ther 2013; 19:969-77. [PMID: 24164711 DOI: 10.1111/cns.12198] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2013] [Revised: 09/25/2013] [Accepted: 09/25/2013] [Indexed: 12/14/2022] Open
Abstract
AIMS To study whether adiponectin (APN) could improve neurological outcomes in aged mice after ischemic stroke. METHODS Adeno-associated virus carrying APN gene was injected into aged and young adult mice 7 days before transient middle cerebral artery occlusion (tMCAO). Atrophic volumes and neurobehavioral deficiencies were determined up to 28 days after tMCAO. Focal angiogenesis was determined based on blood vessel number in the ischemic regions. RESULTS Increased atrophic volume and more sever neurobehavioral deficits were found in the aged mice compared with young adult mice (P < 0.05). AAV-APN gene transfer attenuated atrophic volume and improved neurobehavioral outcomes, along with increased focal angiogenesis in both aged and young adult mice, compared with control animals (P < 0.05). In addition, the attenuation of atrophic volume and the improvement in neurobehavioral outcomes were much more significant in aged mice than in young adult mice after AAV-APN administration (P < 0.05). The number of microvessels in aged AAV-APN mouse ischemic brain was higher than in young adult AAV-APN treated mouse brain (P < 0.05). CONCLUSIONS Our results demonstrate that APN overexpression reduces ischemic brain injury and improves neurobehavioral function recovery in aged mice than in young mice, suggesting APN is more beneficial in aged animals after ischemic stroke.
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Affiliation(s)
- Jie Miao
- Department of Geriatrics, Ruijin Hospital, Shanghai Jiao Tong University, School of Medicine, Shanghai, China
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Asanuma H, Zamri NB, Sekine SI, Fukuyama Y, Tokuhara D, Gilbert RS, Fukuiwa T, Sata T, Tashiro M, Fujihashi K. A novel combined adjuvant for nasal delivery elicits mucosal immunity to influenza in aging. Vaccine 2012; 30:803-12. [PMID: 22100889 PMCID: PMC3253905 DOI: 10.1016/j.vaccine.2011.10.093] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2011] [Revised: 10/24/2011] [Accepted: 10/30/2011] [Indexed: 10/15/2022]
Abstract
Since a combination of flt3 ligand plasmid (pFL) and CpG-oligodeoxynucleotides (ODN)(3) as a dendritic cell (DC)-targeting double mucosal adjuvant elicited ovalbumin-specific secretory IgA (S-IgA) antibody (Ab) responses, we examined whether this double adjuvant could induce influenza-specific protective immunity in aged mice. A double adjuvant plus A/Puerto Rico/8/34 (PR8) hemagglutinin (HA) induced increased numbers of CD11b(+) CD11c(+) DCs and both CD4(+) Th1- and Th2-type responses in the nasopharyngeal-associated lymphoreticular tissue, nasal passages and cervical lymph nodes. Further, increased levels of PR8 HA-specific S-IgA Ab responses were detected in the upper respiratory tact (URT) of aged and young adult mice given nasal PR8 HA with this double adjuvant. Thus, when mice were challenged with PR8 virus via the nasal route, both aged and young adult mice given nasal vaccine exhibited complete protection. Further, IgA-deficient mice nasally immunized with a double adjuvant influenza vaccine failed to provide protection against PR8 challenge. These results indicate that a nasal double adjuvant successfully induces PR8 HA-specific IgA Ab responses in both young adult and aged mice, which are essential for the prevention of influenza infection in the murine URT.
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Affiliation(s)
- Hideki Asanuma
- Influenza Virus Research Center, National Institute of Infectious Diseases, Musashimurayama-shi, Tokyo, JAPAN
- Department of Pediatric Dentistry, The Immunobiology Vaccine Center, The University of Alabama at Birmingham, Birmingham, AL 35294-0007, USA
| | - Normaiza Binti Zamri
- Department of Applied Biochemistry, School or Engineering, Tokai University, Hiratsuka-shi, Kanagawa, JAPAN
| | - Shin-ichi Sekine
- Department of Pediatric Dentistry, The Immunobiology Vaccine Center, The University of Alabama at Birmingham, Birmingham, AL 35294-0007, USA
| | - Yoshiko Fukuyama
- Department of Pediatric Dentistry, The Immunobiology Vaccine Center, The University of Alabama at Birmingham, Birmingham, AL 35294-0007, USA
| | - Daisuke Tokuhara
- Department of Pediatric Dentistry, The Immunobiology Vaccine Center, The University of Alabama at Birmingham, Birmingham, AL 35294-0007, USA
| | - Rebekah S. Gilbert
- Department of Pediatric Dentistry, The Immunobiology Vaccine Center, The University of Alabama at Birmingham, Birmingham, AL 35294-0007, USA
| | - Tatsuya Fukuiwa
- Department of Pediatric Dentistry, The Immunobiology Vaccine Center, The University of Alabama at Birmingham, Birmingham, AL 35294-0007, USA
| | - Tetsutaro Sata
- Department of Pathology, National Institute of Infectious Diseases, Shinjuku-ku, Tokyo, JAPAN
| | - Masato Tashiro
- Influenza Virus Research Center, National Institute of Infectious Diseases, Musashimurayama-shi, Tokyo, JAPAN
| | - Kohtaro Fujihashi
- Department of Pediatric Dentistry, The Immunobiology Vaccine Center, The University of Alabama at Birmingham, Birmingham, AL 35294-0007, USA
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48
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Buchanan JB, Sparkman NL, Chen J, Johnson RW. Cognitive and neuroinflammatory consequences of mild repeated stress are exacerbated in aged mice. Psychoneuroendocrinology 2008; 33:755-65. [PMID: 18407425 DOI: 10.1016/j.psyneuen.2008.02.013] [Citation(s) in RCA: 96] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/29/2007] [Revised: 02/21/2008] [Accepted: 02/25/2008] [Indexed: 11/23/2022]
Abstract
Peripheral immune stimulation as well as certain types of psychological stress increases brain levels of inflammatory cytokines such as interleukin-1beta (IL-1beta), IL-6 and tumor necrosis factor alpha (TNFalpha). We have demonstrated that aged mice show greater increases in central inflammatory cytokines, as well as greater cognitive deficits, compared to adults in response to peripheral lipopolysaccharide (LPS) administration. Because aged mice are typically more sensitive to systemic stressors such as LPS, and certain psychological stressors induce physiological responses similar to those that follow LPS, we hypothesized that aged mice would be more sensitive to the physiological and cognitive effects of mild stress than adult mice. Here, adult (3-5 months) and aged (22-23 months) male BALB/c mice were trained in the Morris water maze for 5 days. Mice were then exposed to a mild restraint stress of 30 min before being tested in a working memory version of the water maze over a 3-day period. On day 4 mice were stressed and then killed for collection of blood and brain. In a separate group of animals, mice were killed immediately after one, two or three 30 min restraint sessions and blood was collected for peripheral corticosterone and cytokine protein measurement, and brains were dissected for central cytokine mRNA measurement. Stress disrupted spatial working memory in both adult and aged mice but to a much greater extent in the aged mice. In addition, aged mice showed an increase in stress-induced expression of hippocampal IL-1beta mRNA and MHC class II protein compared to non-stressed controls while expression in adult mice was unaffected by stress. These data show that aged mice are more sensitive to both the cognitive and inflammatory effects of mild stress than are adult mice and suggest a possible role for IL-1beta.
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