1
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Mekkawy MH, Abdou FY, Ali MM, Abd-ElRaouf A. A novel approach of using Maca root as a radioprotector in a rat testicular damage model focusing on GRP78/CHOP/Caspase-3 pathway. Arch Biochem Biophys 2024; 755:109963. [PMID: 38518815 DOI: 10.1016/j.abb.2024.109963] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2023] [Revised: 03/03/2024] [Accepted: 03/19/2024] [Indexed: 03/24/2024]
Abstract
PURPOSE Despite the effectiveness of ionizing radiation in treating cancer, it can damage healthy tissues in the vicinity. Due to the high radio-sensitivity of testicular tissues, radiation therapy may affect spermatogenesis, which may result in infertility. Hence, in this study testicular damage model is constructed to investigate the mitigation effect of Maca root powder and its potential radioprotective activity through both oxidative and endoplasmic reticulum (ER) stresses, besides the apoptotic pathway. METHODS Male albino rats were exposed to 6Gy of whole-body gamma radiation single dose. Maca root powder (1 g/kg b.wt./day, by oral gavage) was administered for a week before irradiation, then d-galactose (300 mg/kg, by oral gavage) and Maca daily for another week. RESULTS Gamma radiation and d-galactose revealed a significant decrease in serum testosterone, sperm count, and motility and higher percentage of the sperm head abnormality, while Maca root treatment maintained all sperm morphology parameters. Maca root treatment demonstrated a notable defense against radiation-induced oxidative stress and ameliorated malonaldehyde (MDA), reactive oxygen species (ROS), nitric oxide (NO), glutathione-S-transferase (GST) levels, reduced glutathione (GSH), oxidized glutathione (GSSG) and the ratio of GSH/GSSG in testis tissues. Exposure to gamma rays and d-galactose displayed a significant elevation in GRP78, CHOP, total caspase-3 as well as active (cleaved) caspase-3 levels, whereas treatment with Maca significantly reduced the ER and apoptotic markers levels. Also, Maca improved the histological changes of the disorganized seminiferous tubules induced by irradiation. CONCLUSION Our findings show for the first time that Maca has a protective effect on male reproductive damage induced by radiotherapy. Maca root reveals anti-apoptotic effect and protection against testicular damage via GRP78/CHOP/caspase-3 pathway.
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Affiliation(s)
- Mai H Mekkawy
- Drug Radiation Research Department, National Center for Radiation Research and Technology (NCRRT), Egyptian Atomic Energy Authority (EAEA), Cairo, Egypt.
| | - Fatma Y Abdou
- Drug Radiation Research Department, National Center for Radiation Research and Technology (NCRRT), Egyptian Atomic Energy Authority (EAEA), Cairo, Egypt.
| | - Maha M Ali
- Drug Radiation Research Department, National Center for Radiation Research and Technology (NCRRT), Egyptian Atomic Energy Authority (EAEA), Cairo, Egypt.
| | - Amira Abd-ElRaouf
- Drug Radiation Research Department, National Center for Radiation Research and Technology (NCRRT), Egyptian Atomic Energy Authority (EAEA), Cairo, Egypt.
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2
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Wang P, Mi Y, Yu H, Teng X, Jin S, Xiao L, Xue H, Tian D, Guo Q, Wu Y. Trimethylamine-N-oxide aggravated the sympathetic excitation in D-galactose induced aging rats by down-regulating P2Y12 receptor in microglia. Biomed Pharmacother 2024; 174:116549. [PMID: 38593701 DOI: 10.1016/j.biopha.2024.116549] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2024] [Revised: 03/26/2024] [Accepted: 04/04/2024] [Indexed: 04/11/2024] Open
Abstract
This study aimed to determine whether trimethylamine N-oxide (TMAO) was involved in sympathetic activation in aging and the underlying mechanisms. Our hypothesis is TMAO reduces P2Y12 receptor (P2Y12R) and induces microglia-mediated inflammation in the paraventricular nucleus (PVN), then leading to sympathetic activation in aging. This study involved 18 young adults and 16 old adults. Aging rats were established by injecting D-galactose (D-gal, 200 mg/kg/d) subcutaneously for 12 weeks. TMAO (120 mg/kg/d) or 1% 3, 3-dimethyl-l-butanol (DMB) was administrated via drinking water for 12 weeks to investigate their effects on neuroinflammation and sympathetic activation in aging rats. Plasma TMAO, NE and IL-1β levels were higher in old adults than in young adults. In addition, standard deviation of all normal to normal intervals (SDNN) and standard deviation of the average of normal to normal intervals (SDANN) were lower in old adults and negatively correlated with TMAO, indicating sympathetic activation in old adults, which is associated with an increase in TMAO levels. Treatment of rats with D-gal showed increased senescence-associated protein levels and microglia-mediated inflammation, as well as decreased P2Y12R protein levels in PVN. Plasma TMAO, NE and IL-1β levels were increased, accompanied by enhanced renal sympathetic nerve activity (RSNA). While TMAO treatment exacerbated the above phenomenon, DMB mitigated it. These findings suggest that TMAO contributes to sympathetic hyperactivity in aging by downregulating P2Y12R in microglia and increasing inflammation in the PVN. These results may provide promising new target for the prevention and treatment of aging and aging-related diseases.
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Affiliation(s)
- Ping Wang
- Department of Physiology, Institute of Basic Medicine, Hebei Medical University, 361 Zhongshan East Road, Shijiazhuang 050017, China
| | - Yuan Mi
- Department of Physiology, Institute of Basic Medicine, Hebei Medical University, 361 Zhongshan East Road, Shijiazhuang 050017, China; Department of Emergency, the Fourth Hospital of Hebei Medical University, Shijiazhuang 050011, China
| | - Hao Yu
- Department of Physiology, Institute of Basic Medicine, Hebei Medical University, 361 Zhongshan East Road, Shijiazhuang 050017, China
| | - Xu Teng
- Department of Physiology, Institute of Basic Medicine, Hebei Medical University, 361 Zhongshan East Road, Shijiazhuang 050017, China
| | - Sheng Jin
- Department of Physiology, Institute of Basic Medicine, Hebei Medical University, 361 Zhongshan East Road, Shijiazhuang 050017, China
| | - Lin Xiao
- Department of Physiology, Institute of Basic Medicine, Hebei Medical University, 361 Zhongshan East Road, Shijiazhuang 050017, China
| | - Hongmei Xue
- Department of Physiology, Institute of Basic Medicine, Hebei Medical University, 361 Zhongshan East Road, Shijiazhuang 050017, China
| | - Danyang Tian
- Department of Physiology, Institute of Basic Medicine, Hebei Medical University, 361 Zhongshan East Road, Shijiazhuang 050017, China
| | - Qi Guo
- Department of Physiology, Institute of Basic Medicine, Hebei Medical University, 361 Zhongshan East Road, Shijiazhuang 050017, China; Experimental Center for Teaching, Hebei Medical University, Shijiazhuang 050017, China; Hebei Key Laboratory of Cardiovascular Homeostasis and Aging, China.
| | - Yuming Wu
- Department of Physiology, Institute of Basic Medicine, Hebei Medical University, 361 Zhongshan East Road, Shijiazhuang 050017, China; Hebei Collaborative Innovation Center for Cardio-Cerebrovascular Disease, Shijiazhuang 050017, China; The Key Laboratory of Neural and Vascular Biology, Ministry of Education, China; Hebei Key Laboratory of Cardiovascular Homeostasis and Aging, China.
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3
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Chen ZL, Guo C, Zou YY, Feng C, Yang DX, Sun CC, Wen W, Jian ZJ, Zhao Z, Xiao Q, Zheng L, Peng XY, Zhou ZQ, Tang CF. Aerobic exercise enhances mitochondrial homeostasis to counteract D-galactose-induced sarcopenia in zebrafish. Exp Gerontol 2023; 180:112265. [PMID: 37482108 DOI: 10.1016/j.exger.2023.112265] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2023] [Revised: 07/18/2023] [Accepted: 07/20/2023] [Indexed: 07/25/2023]
Abstract
Sarcopenia is a common skeletal muscle degenerative disease characterized by decreased skeletal muscle mass and mitochondrial dysfunction that involves microRNAs (miR) as regulatory factors in various pathways. Exercise reduces age-related oxidative damage and chronic inflammation and increases autophagy, among others. Moreover, whether aerobic exercise can regulate mitochondrial homeostasis by modulating the miR-128/insulin-like growth factor-1 (IGF-1) signaling pathway and can improve sarcopenia requires further investigation. Interestingly, zebrafish have been used as a model for aging research for over a decade due to their many outstanding advantages. Therefore, we established a model of zebrafish sarcopenia using d-galactose immersion and observed substantial changes, including reduced skeletal muscle cross-sectional area, increased tissue fibrosis, decreased motility, increased skeletal muscle reactive oxygen species, and notable alterations in mitochondrial morphology and function. We found that miR-128 expression was considerably upregulated, where as Igf1 and peroxisome proliferator-activated receptor gamma coactivator 1-alpha were significantly downregulated; moreover, mitochondrial homeostasis was reduced. Four weeks of aerobic exercise delayed sarcopenia progression and prevented the disruption of mitochondrial function and homeostasis. The genes related to atrophy and miR-128 were downregulated, Igf1 expression was considerably upregulated, and the phosphorylation levels of Pi3k, Akt, and Foxo3a were upregulated. Furthermore, mitochondrial respiration and homeostasis were enhanced. In conclusion, aerobic exercise improved skeletal muscle quality and function via the miR-128/IGF-1 signaling pathway, consequently ameliorating mitochondrial homeostasis in aging skeletal muscle.
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Affiliation(s)
- Zhang-Lin Chen
- Key Laboratory of Physical Fitness and Exercise Rehabilitation of Hunan Province, College of Physical Education, Hunan Normal University, 410012 Changsha, China
| | - Cheng Guo
- Key Laboratory of Physical Fitness and Exercise Rehabilitation of Hunan Province, College of Physical Education, Hunan Normal University, 410012 Changsha, China
| | - Yun-Yi Zou
- Key Laboratory of Physical Fitness and Exercise Rehabilitation of Hunan Province, College of Physical Education, Hunan Normal University, 410012 Changsha, China
| | - Chen Feng
- Key Laboratory of Physical Fitness and Exercise Rehabilitation of Hunan Province, College of Physical Education, Hunan Normal University, 410012 Changsha, China
| | - Di-Xuan Yang
- Key Laboratory of Physical Fitness and Exercise Rehabilitation of Hunan Province, College of Physical Education, Hunan Normal University, 410012 Changsha, China
| | - Chen-Chen Sun
- Key Laboratory of Physical Fitness and Exercise Rehabilitation of Hunan Province, College of Physical Education, Hunan Normal University, 410012 Changsha, China
| | - Wei Wen
- Key Laboratory of Physical Fitness and Exercise Rehabilitation of Hunan Province, College of Physical Education, Hunan Normal University, 410012 Changsha, China
| | - Zhen-Jie Jian
- Key Laboratory of Physical Fitness and Exercise Rehabilitation of Hunan Province, College of Physical Education, Hunan Normal University, 410012 Changsha, China
| | - Zhe Zhao
- Key Laboratory of Physical Fitness and Exercise Rehabilitation of Hunan Province, College of Physical Education, Hunan Normal University, 410012 Changsha, China
| | - Qin Xiao
- Key Laboratory of Physical Fitness and Exercise Rehabilitation of Hunan Province, College of Physical Education, Hunan Normal University, 410012 Changsha, China
| | - Lan Zheng
- Key Laboratory of Physical Fitness and Exercise Rehabilitation of Hunan Province, College of Physical Education, Hunan Normal University, 410012 Changsha, China
| | - Xi-Yang Peng
- Key Laboratory of Physical Fitness and Exercise Rehabilitation of Hunan Province, College of Physical Education, Hunan Normal University, 410012 Changsha, China.
| | - Zuo-Qiong Zhou
- Key Laboratory of Physical Fitness and Exercise Rehabilitation of Hunan Province, College of Physical Education, Hunan Normal University, 410012 Changsha, China.
| | - Chang-Fa Tang
- Key Laboratory of Physical Fitness and Exercise Rehabilitation of Hunan Province, College of Physical Education, Hunan Normal University, 410012 Changsha, China.
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4
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Osthole Alleviates D-Galactose-Induced Liver Injury In Vivo via the TLR4/MAPK/NF-κB Pathways. MOLECULES (BASEL, SWITZERLAND) 2023; 28:molecules28010443. [PMID: 36615637 PMCID: PMC9824625 DOI: 10.3390/molecules28010443] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/01/2022] [Revised: 11/22/2022] [Accepted: 11/25/2022] [Indexed: 01/06/2023]
Abstract
Osthole, a coumarin derivative, is found in several medicinal herbs. However, the protective effects of osthole against D-galactose (D-Gal)-induced liver injury still remain unclear. In this study, osthole treatment effectively reversed D-Gal-induced liver injury, according to the results of liver HE staining, and improved ALT and AST activities. Feeding with D-Gal significantly increased MDA content, and reduced the level or activity of SOD, CAT and GSH-Px, which were all alleviated by osthole intervention. Meanwhile, osthole treatment significantly inhibited the D-Gal-induced secretion of pro-inflammatory cytokines, such as TNF-α, IL-1β and IL-6, in both serum and liver tissue. Investigations revealed that osthole ameliorated the D-Gal-induced activation of TLR4, MYD88 and its downstream signaling pathways of MAPK (p38 and JNK) and NF-κB (nucleus p65). Therefore, osthole mediates a protective effect against D-Gal-induced liver injury via the TLR4/MAPK/NF-κB pathways, and this coumarin derivative could be developed as a candidate bioactive component for functional food.
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5
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Alejandro SP. ER stress in cardiac aging, a current view on the D-galactose model. Exp Gerontol 2022; 169:111953. [PMID: 36116694 DOI: 10.1016/j.exger.2022.111953] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2022] [Revised: 09/07/2022] [Accepted: 09/12/2022] [Indexed: 12/15/2022]
Abstract
Longitudinal studies are mandatory to study aging, however, they have certain drawbacks, for example, they require strict maintenance that is expensive given the breeding time (approximately 2 years) and with a low survival rate, having some animals to study very limitedly. In vitro studies provide useful and invaluable information on the cellular and molecular mechanisms that help understand the aging process to overcome these aspects. In particular, the model of premature aging induced by chronic exposure to D-galactose (D-Gal) offers a very similar picture to that which occurs in natural aging. This model mimics most of the old animals' cellular processes, such as oxidative stress, mitochondrial dysfunction, increased advanced glycation end products (AGEs), inflammation, and senescence-associated secretory phenotype (SASP). However, the information related to the endoplasmic reticulum (ER) stress and, subsequently, the unfolded protein response (UPR) is not fully elucidated. Therefore, this review brings together the most current information on this response in the D-Gal-induced aging model and its effect on cardiac structure and function.
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Affiliation(s)
- Silva-Palacios Alejandro
- Department of Cardiovascular Biomedicine, National Institute of Cardiology "Ignacio Chávez", Mexico City, Mexico.
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6
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Zhou J, Chen H, Du J, Tai H, Han X, Huang N, Wang X, Gong H, Yang M, Xiao H. Glutamine Availability Regulates the Development of Aging Mediated by mTOR Signaling and Autophagy. Front Pharmacol 2022; 13:924081. [PMID: 35860029 PMCID: PMC9289448 DOI: 10.3389/fphar.2022.924081] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2022] [Accepted: 06/17/2022] [Indexed: 11/13/2022] Open
Abstract
Glutamine is a conditionally essential amino acid involved in energy production and redox homeostasis. Aging is commonly characterized by energy generation reduction and redox homeostasis dysfunction. Various aging-related diseases have been reported to be accompanied by glutamine exhaustion. Glutamine supplementation has been used as a nutritional therapy for patients and the elderly, although the mechanism by which glutamine availability affects aging remains elusive. Here, we show that chronic glutamine deprivation induces senescence in fibroblasts and aging in Drosophila melanogaster, while glutamine supplementation protects against oxidative stress-induced cellular senescence and rescues the D-galactose-prompted progeria phenotype in mice. Intriguingly, we found that long-term glutamine deprivation activates the Akt-mTOR pathway, together with the suppression of autolysosome function. However, the inhibition of the Akt-mTOR pathway effectively rescued the autophagy impairment and cellular senescence caused by glutamine deprivation. Collectively, our study demonstrates a novel interplay between glutamine availability and the aging process. Mechanistically, long-term glutamine deprivation could evoke mammalian target of rapamycin (mTOR) pathway activation and autophagy impairment. These findings provide new insights into the connection between glutamine availability and the aging process.
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Affiliation(s)
- Jiao Zhou
- Department of Geriatrics, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, China
| | - Honghan Chen
- Department of Geriatrics, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, China
| | - Jintao Du
- Department of Otorhinolaryngology Head and Neck Surgery, West China Hospital, Sichuan University, Chengdu, China
| | - Haoran Tai
- Department of Geriatrics, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, China
- Development and Regeneration Key Laboratory of Sichuan Province, Department of Anatomy and Histology and Embryology, Chengdu Medical College, Chengdu, China
| | - Xiaojuan Han
- Department of Geriatrics, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, China
| | - Ning Huang
- Department of Geriatrics, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, China
| | - Xiaobo Wang
- Department of Geriatrics, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, China
| | - Hui Gong
- Department of Geriatrics, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, China
| | - Mingyao Yang
- Institute of Animal Genetics and Breeding, Sichuan Agricultural University, Chengdu, China
| | - Hengyi Xiao
- Department of Geriatrics, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, China
- *Correspondence: Hengyi Xiao,
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7
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Wang Y, Wang K, Bao Y, Zhang T, Ainiwaer D, Xiong X, Wang G, Sun Z. The serum soluble Klotho alleviates cardiac aging and regulates M2a/M2c macrophage polarization via inhibiting TLR4/Myd88/NF-κB pathway. Tissue Cell 2022; 76:101812. [DOI: 10.1016/j.tice.2022.101812] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2022] [Revised: 04/15/2022] [Accepted: 04/26/2022] [Indexed: 11/27/2022]
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8
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Chu W, Wang P, Ma Z, Peng L, Wang Z, Chen Z. Ultrasonic treatment of
Dendrobium officinale
polysaccharide enhances antioxidant and anti‐inflammatory activity in a mouse D‐galactose‐induced aging model. Food Sci Nutr 2022; 10:2620-2630. [PMID: 35959255 PMCID: PMC9361453 DOI: 10.1002/fsn3.2867] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2021] [Revised: 10/14/2021] [Accepted: 03/21/2022] [Indexed: 01/24/2023] Open
Abstract
Utilization of the biological macromolecule Dendrobium officinale polysaccharide (DOP) as a functional ingredient is limited by its high intrinsic viscosity and molecular weight. The goal of the present study was to improve rheological properties of DOP by ultrasonic treatment. Such a treatment resulted in the degradation of DOP and consequent reduction of rheological properties. Among DOP samples treated with ultrasonication at low (L), medium (M), and high (H) power intensities (25, 50, 75 w/cm2), M‐DOP displayed the highest reactive oxygen species (ROS) and reactive nitrogen species (RNS) radical scavenging activity in vitro. In a mouse D‐galactose (D‐Gal)‐induced aging model, M‐DOP significantly increased activities of antioxidant enzymes and reduced levels of pro‐inflammatory cytokines in liver. Real‐time polymerase chain reaction (RT‐PCR) analysis indicated that M‐DOP upregulated messenger RNA (mRNA) expression of anti‐inflammatory/antioxidant proteins such as Nrf2 (nuclear factor erythroid 2‐related factor), hemeoxygenase‐1 (HO‐1), and NAD(P)H:quinone oxidoreductase (NQO1) in liver. In summary, M‐DOP displayed a strong radical scavenging activity in vitro, and ameliorated liver injury in the mouse aging model through the promotion of Nrf2/HO‐1/NQO1 signaling pathway.
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Affiliation(s)
- Wenhui Chu
- School of Life Science Taizhou University Taizhou China
| | - Pan Wang
- Traditional Chinese Medicine Industry Development and Promotion Center of Pan'an County Pan'an China
| | - Zhe Ma
- School of Life Science Taizhou University Taizhou China
| | - Lin Peng
- School of Life Science Taizhou University Taizhou China
| | - Zongmin Wang
- School of Agriculture and Food Engineering Shandong University of Technology Zibo China
| | - Zilin Chen
- Traditional Chinese Medicine Industry Development and Promotion Center of Pan'an County Pan'an China
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9
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Yasom S, Watcharanurak P, Bhummaphan N, Thongsroy J, Puttipanyalears C, Settayanon S, Chalertpet K, Khumsri W, Kongkaew A, Patchsung M, Siriwattanakankul C, Pongpanich M, Pin‐on P, Jindatip D, Wanotayan R, Odton M, Supasai S, Oo TT, Arunsak B, Pratchayasakul W, Chattipakorn N, Chattipakorn S, Mutirangura A. The roles of HMGB1-produced DNA gaps in DNA protection and aging biomarker reversal. FASEB Bioadv 2022; 4:408-434. [PMID: 35664831 PMCID: PMC9164245 DOI: 10.1096/fba.2021-00131] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2021] [Revised: 02/23/2022] [Accepted: 02/28/2022] [Indexed: 11/24/2022] Open
Abstract
The endogenous DNA damage triggering an aging progression in the elderly is prevented in the youth, probably by naturally occurring DNA gaps. Decreased DNA gaps are found during chronological aging in yeast. So we named the gaps "Youth-DNA-GAPs." The gaps are hidden by histone deacetylation to prevent DNA break response and were also reduced in cells lacking either the high-mobility group box (HMGB) or the NAD-dependent histone deacetylase, SIR2. A reduction in DNA gaps results in shearing DNA strands and decreasing cell viability. Here, we show the roles of DNA gaps in genomic stability and aging prevention in mammals. The number of Youth-DNA-GAPs were low in senescent cells, two aging rat models, and the elderly. Box A domain of HMGB1 acts as molecular scissors in producing DNA gaps. Increased gaps consolidated DNA durability, leading to DNA protection and improved aging features in senescent cells and two aging rat models similar to those of young organisms. Like the naturally occurring Youth-DNA-GAPs, Box A-produced DNA gaps avoided DNA double-strand break response by histone deacetylation and SIRT1, a Sir2 homolog. In conclusion, Youth-DNA-GAPs are a biomarker determining the DNA aging stage (young/old). Box A-produced DNA gaps ultimately reverse aging features. Therefore, DNA gap formation is a potential strategy to monitor and treat aging-associated diseases.
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Affiliation(s)
- Sakawdaurn Yasom
- Center of Excellence in Molecular Genetics of Cancer and Human Disease, Department of Anatomy, Faculty of MedicineChulalongkorn UniversityBangkokThailand,Interdisciplinary Program of Biomedical Sciences, Graduate SchoolChulalongkorn UniversityBangkokThailand
| | - Papitchaya Watcharanurak
- Center of Excellence in Molecular Genetics of Cancer and Human Disease, Department of Anatomy, Faculty of MedicineChulalongkorn UniversityBangkokThailand,Interdisciplinary Program of Biomedical Sciences, Graduate SchoolChulalongkorn UniversityBangkokThailand
| | - Narumol Bhummaphan
- Center of Excellence in Molecular Genetics of Cancer and Human Disease, Department of Anatomy, Faculty of MedicineChulalongkorn UniversityBangkokThailand
| | | | - Charoenchai Puttipanyalears
- Center of Excellence in Molecular Genetics of Cancer and Human Disease, Department of Anatomy, Faculty of MedicineChulalongkorn UniversityBangkokThailand
| | - Sirapat Settayanon
- Center of Excellence in Molecular Genetics of Cancer and Human Disease, Department of Anatomy, Faculty of MedicineChulalongkorn UniversityBangkokThailand,Interdisciplinary Program of Biomedical Sciences, Graduate SchoolChulalongkorn UniversityBangkokThailand
| | - Kanwalat Chalertpet
- Center of Excellence in Molecular Genetics of Cancer and Human Disease, Department of Anatomy, Faculty of MedicineChulalongkorn UniversityBangkokThailand,Interdisciplinary Program of Biomedical Sciences, Graduate SchoolChulalongkorn UniversityBangkokThailand
| | - Wilunplus Khumsri
- Center of Excellence in Molecular Genetics of Cancer and Human Disease, Department of Anatomy, Faculty of MedicineChulalongkorn UniversityBangkokThailand,Interdisciplinary Program of Biomedical Sciences, Graduate SchoolChulalongkorn UniversityBangkokThailand
| | - Aphisek Kongkaew
- Research Administration Section, Faculty of MedicineChiang Mai UniversityChiang MaiThailand
| | - Maturada Patchsung
- Center of Excellence in Molecular Genetics of Cancer and Human Disease, Department of Anatomy, Faculty of MedicineChulalongkorn UniversityBangkokThailand
| | - Chutha Siriwattanakankul
- Center of Excellence in Molecular Genetics of Cancer and Human Disease, Department of Anatomy, Faculty of MedicineChulalongkorn UniversityBangkokThailand
| | - Monnat Pongpanich
- Department of Mathematics and Computer Science, Faculty of ScienceChulalongkorn UniversityBangkokThailand,Omics Sciences and Bioinformatics Center, Faculty of ScienceChulalongkorn UniversityBangkokThailand
| | - Piyapat Pin‐on
- Center of Excellence in Molecular Genetics of Cancer and Human Disease, Department of Anatomy, Faculty of MedicineChulalongkorn UniversityBangkokThailand
| | - Depicha Jindatip
- Center of Excellence in Molecular Genetics of Cancer and Human Disease, Department of Anatomy, Faculty of MedicineChulalongkorn UniversityBangkokThailand
| | - Rujira Wanotayan
- Department of Radiological Technology, Faculty of Medical TechnologyMahidol UniversityNakhon PathomThailand
| | - Mingkwan Odton
- Department of Molecular Tropical Medicine and Genetics, Faculty of Tropical MedicineMahidol UniversityBangkokThailand
| | - Suangsuda Supasai
- Department of Molecular Tropical Medicine and Genetics, Faculty of Tropical MedicineMahidol UniversityBangkokThailand
| | - Thura Tun Oo
- Neurophysiology Unit, Cardiac Electrophysiology Research and Training Center, Faculty of MedicineChiang Mai UniversityChiang MaiThailand,Center of Excellence in Cardiac Electrophysiology ResearchChiang Mai UniversityChiang MaiThailand
| | - Busarin Arunsak
- Neurophysiology Unit, Cardiac Electrophysiology Research and Training Center, Faculty of MedicineChiang Mai UniversityChiang MaiThailand,Center of Excellence in Cardiac Electrophysiology ResearchChiang Mai UniversityChiang MaiThailand
| | - Wasana Pratchayasakul
- Neurophysiology Unit, Cardiac Electrophysiology Research and Training Center, Faculty of MedicineChiang Mai UniversityChiang MaiThailand,Center of Excellence in Cardiac Electrophysiology ResearchChiang Mai UniversityChiang MaiThailand
| | - Nipon Chattipakorn
- Center of Excellence in Cardiac Electrophysiology ResearchChiang Mai UniversityChiang MaiThailand,Cardiac Electrophysiology Unit, Department of Physiology, Faculty of MedicineChiang Mai UniversityChiang MaiThailand
| | - Siriporn Chattipakorn
- Neurophysiology Unit, Cardiac Electrophysiology Research and Training Center, Faculty of MedicineChiang Mai UniversityChiang MaiThailand,Center of Excellence in Cardiac Electrophysiology ResearchChiang Mai UniversityChiang MaiThailand
| | - Apiwat Mutirangura
- Center of Excellence in Molecular Genetics of Cancer and Human Disease, Department of Anatomy, Faculty of MedicineChulalongkorn UniversityBangkokThailand
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10
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Ye L, Huang J, Xiang X, Song S, Huang G, Ruan Y, Wu S. 17β-Estradiol alleviates cardiac aging induced by d-galactose by downregulating the methylation of autophagy-related genes. Steroids 2021; 170:108829. [PMID: 33811924 DOI: 10.1016/j.steroids.2021.108829] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/28/2020] [Revised: 02/23/2021] [Accepted: 03/19/2021] [Indexed: 10/21/2022]
Abstract
Intrinsic cardiac aging increases cardiovascular mortality and morbidity in the elderly. Estrogen helps reduce the risk of cardiovascular disease in women, with 17β-estradiol (17β-E2) activating the autophagy pathway and inhibiting vascular aging, mainly through estrogen receptor alpha (ER α) to prevent atherosclerosis. Abnormal methylation of autophagy-related genes can impact autophagic regulation. We hypothesized that 17β-E2, specifically 17β-E2 α, downregulates the methylation of autophagy factors and delays cardiac aging. Here, we used d-galactose, 17β-E2, and ER α receptor antagonist methyl-piperidino-pyrazole (MPP) to establish different aging models in mice divided into four groups, namely negative control, D.gal, D.gal + 17β-E2, and D.gal + 17β-E2 + MPP groups. Echocardiography showed that compared with the D.gal group group, the D.gal + 17β-E2 showed substantially increased cardiac function. The level of cardiac aging markers in mice in the D.gal + 17β-E2 group was lower than that in mice in the D.gal group. Beclin1, LC3, and Atg5 mRNA and protein expression levels in mice in the D.gal + 17β-E2 group were significantly increased compared with those in the D.gal group. Additionally, Beclin1, LC3, and Atg5 methylation levels were significantly decreased in the D.gal + 17β-E2 group. All the above values of the D.gal + 17β-E2 + MPP group were between those of the D.gal and D.gal + 17β-E2 groups. The expression of Dnmt1, Dnmt2, and Dnmt3A genes was the highest in the D.gal group. In summary, our results suggest that 17β-E2, specifically 17β-E2 α, promotes autophagy by downregulating the methylation of autophagy factors, thereby inhibiting galactose-induced cardiac aging in mice. 17β-E2 may be a potential therapeutic target to mitigate the effects of cardiac aging.
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Affiliation(s)
- Lili Ye
- Department of Geriatrics, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong 510515, China; Department of Cardiology, The Fifth Affiliated Hospital of Guangzhou Medical University, Guangzhou Key Laboratory of Enhanced Recovery after Abdominal Surgery, Guangzhou, Guangdong 510700, China
| | - Jianming Huang
- Department of Geriatrics, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong 510515, China
| | - Xiuting Xiang
- Department of Geriatrics, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong 510515, China
| | - Shicong Song
- Department of Geriatrics, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong 510515, China
| | - Guanshen Huang
- Department of Geriatrics, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong 510515, China
| | - Yunjun Ruan
- Department of Geriatrics, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong 510515, China.
| | - Saizhu Wu
- Department of Geriatrics, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong 510515, China.
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11
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Melnik BC, Schmitz G. Pasteurized non-fermented cow's milk but not fermented milk is a promoter of mTORC1-driven aging and increased mortality. Ageing Res Rev 2021; 67:101270. [PMID: 33571703 DOI: 10.1016/j.arr.2021.101270] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2020] [Revised: 01/16/2021] [Accepted: 02/03/2021] [Indexed: 02/07/2023]
Abstract
Recent epidemiological studies in Sweden, a country with traditionally high milk consumption, revealed that the intake of non-fermented pasteurized milk increased all-cause mortality in a dose-dependent manner. In contrast, the majority of epidemiological and clinical studies report beneficial health effects of fermented milk products, especially of yogurt. It is the intention of this review to delineate potential molecular aging mechanisms related to the intake of non-fermented milk versus yogurt on the basis of mechanistic target of rapamycin complex 1 (mTORC1) signaling. Non-fermented pasteurized milk via its high bioavailability of insulinotropic branched-chain amino acids (BCAAs), abundance of lactose (glucosyl-galactose) and bioactive exosomal microRNAs (miRs) enhances mTORC1 signaling, which shortens lifespan and increases all-cause mortality. In contrast, fermentation-associated lactic acid bacteria metabolize BCAAs and degrade galactose and milk exosomes including their mTORC1-activating microRNAs. The Industrial Revolution, with the introduction of pasteurization and refrigeration of milk, restricted the action of beneficial milk-fermenting bacteria, which degrade milk's BCAAs, galactose and bioactive miRs that synergistically activate mTORC1. This unrecognized behavior change in humans after the Neolithic revolution increased aging-related over-activation of mTORC1 signaling in humans, who persistently consume large quantities of non-fermented pasteurized cow's milk, a potential risk factor for aging and all-cause mortality.
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12
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Hakimizadeh E, Zamanian M, Giménez-Llort L, Sciorati C, Nikbakhtzadeh M, Kujawska M, Kaeidi A, Hassanshahi J, Fatemi I. Calcium Dobesilate Reverses Cognitive Deficits and Anxiety-Like Behaviors in the D-Galactose-Induced Aging Mouse Model through Modulation of Oxidative Stress. Antioxidants (Basel) 2021; 10:649. [PMID: 33922431 PMCID: PMC8145666 DOI: 10.3390/antiox10050649] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2021] [Revised: 04/15/2021] [Accepted: 04/17/2021] [Indexed: 11/24/2022] Open
Abstract
The long-term treatment of mice with D-galactose (D-gal) induces the overproduction of reactive oxygen species (ROS) and is a well-accepted experimental model of oxidative stress-linked cognitive disorders in physiological aging. Calcium dobesilate (CaD, Doxium®) is an established vasoactive and angioprotective drug commonly used for the clinical treatment of diabetic retinopathy and chronic venous insufficiency. It has antioxidant properties and controls vascular permeability. In the current study, we evaluated the protective effects of CaD (50 and 100 mg/kg/day p.o.) in male mice treated with D-gal (500 mg/kg/day p.o.) for six weeks. Results demonstrated that body weight loss, anxiety-like and cognitive impairments of D-gal-treated animals were reversed by CaD administration as evaluated by the measurement of mice performance in elevated plus-maze, Y-maze, and shuttle box tests. CaD treatment also inhibited the oxidative stress in aging mouse brains by decreasing malondialdehyde (MDA) levels and increasing superoxide dismutase (SOD), glutathione peroxidase (GPx), and catalase (CAT) enzyme activities. These results could open new perspectives for the clinical use of CaD in treating and preventing cognitive impairment in older people.
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Affiliation(s)
- Elham Hakimizadeh
- Physiology-Pharmacology Research Center, Research Institute of Basic Medical Sciences, Rafsanjan University of Medical Sciences, Rafsanjan 7717933777, Iran; (E.H.); (A.K.); (J.H.)
| | - Mohammad Zamanian
- School of Nahavand Paramedical, Hamadan University of Medical Sciences, Hamadan 6718773654, Iran;
- Neurophysiology Research Center, Hamadan University of Medical Sciences, Hamadan 6718773654, Iran
| | - Lydia Giménez-Llort
- Institute of Neuroscience & Department of Psychiatry and Forensic Medicine, Universitat Autònoma de Barcelona, E-08193 Barcelona, Spain;
| | - Clara Sciorati
- Division of Immunology, Transplantation and Infectious Diseases, IRCCS Ospedale San Raffaele Scientific Institute, 20132 Milan, Italy;
| | - Marjan Nikbakhtzadeh
- Department of Physiology, School of Medicine, Tehran University of Medical Sciences, Tehran 14155-6559, Iran;
| | - Małgorzata Kujawska
- Department of Toxicology, Poznan University of Medical Sciences, Dojazd 30, 60-631 Poznań, Poland;
| | - Ayat Kaeidi
- Physiology-Pharmacology Research Center, Research Institute of Basic Medical Sciences, Rafsanjan University of Medical Sciences, Rafsanjan 7717933777, Iran; (E.H.); (A.K.); (J.H.)
- Department of Physiology and Pharmacology, School of Medicine, Rafsanjan University of Medical Sciences, Rafsanjan 7717933777, Iran
| | - Jalal Hassanshahi
- Physiology-Pharmacology Research Center, Research Institute of Basic Medical Sciences, Rafsanjan University of Medical Sciences, Rafsanjan 7717933777, Iran; (E.H.); (A.K.); (J.H.)
- Department of Physiology and Pharmacology, School of Medicine, Rafsanjan University of Medical Sciences, Rafsanjan 7717933777, Iran
| | - Iman Fatemi
- Research Center of Tropical and Infectious Diseases, Kerman University of Medical Sciences, Kerman 7616913555, Iran
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13
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Shwe T, Bo-Htay C, Ongnok B, Chunchai T, Jaiwongkam T, Kerdphoo S, Kumfu S, Pratchayasakul W, Pattarasakulchai T, Chattipakorn N, Chattipakorn SC. Hyperbaric oxygen therapy restores cognitive function and hippocampal pathologies in both aging and aging-obese rats. Mech Ageing Dev 2021; 195:111465. [PMID: 33662435 DOI: 10.1016/j.mad.2021.111465] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2020] [Revised: 01/10/2021] [Accepted: 02/24/2021] [Indexed: 12/14/2022]
Abstract
The population of obese-elderly has increased prominently around the world. Both aging and obesity are major factors of neurodegeneration. The present study hypothesizes that HBOT attenuates metabolic disturbance, cognitive decline, hippocampal pathologies in aging and aging-obese model. Sixty Wistar rats were separated into 2 groups to receive normal-diet (ND) or high-fat diet (HFD) for 22 weeks. At week 13, ND rats were divided into two subgroups to receive vehicle (0.9 % NSS, s.c) or d-gal (150 mg/kg/d, s.c) for total 10 weeks. HFD rats were injected only d-gal (150 mg/kg/d, s.c; HFDD) for total 10 weeks. At week 20, rats in each subgroup were given sham-treatment (1ATA, 80 L/min, 80 min/day), or HBOT (2ATA, pure O2, 250 L/min, 80 min/day) for 14 days. Novel object location test, metabolic parameters, and hippocampal pathologies were determined after HBOT. d-gal induced insulin resistance, increased oxidative stress, autophagy impairment, microglial hyperactivation, apoptosis, synaptic dysplasticity which resulted in cognitive impairment. d-gal-treated HFD-fed rats had the highest levels of oxidative stress, apoptosis, dendritic spine loss. HBOT attenuated insulin resistance, cognitive impairment, hippocampal aging and pathologies in both models. These findings suggest that HBOT restored insulin sensitivity, hippocampal functions, cognition in aging and aging-obese models.
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Affiliation(s)
- Thazin Shwe
- Neurophysiology Unit, Cardiac Electrophysiology Research and Training Center, Faculty of Medicine, Chiang Mai University, Chiang Mai, 50200, Thailand; Cardiac Electrophysiology Unit, Department of Physiology, Faculty of Medicine, Chiang Mai University, Chiang Mai, 50200, Thailand; Center of Excellence in Cardiac Electrophysiology, Chiang Mai University, Chiang Mai, 50200, Thailand
| | - Cherry Bo-Htay
- Neurophysiology Unit, Cardiac Electrophysiology Research and Training Center, Faculty of Medicine, Chiang Mai University, Chiang Mai, 50200, Thailand; Cardiac Electrophysiology Unit, Department of Physiology, Faculty of Medicine, Chiang Mai University, Chiang Mai, 50200, Thailand; Center of Excellence in Cardiac Electrophysiology, Chiang Mai University, Chiang Mai, 50200, Thailand
| | - Benjamin Ongnok
- Neurophysiology Unit, Cardiac Electrophysiology Research and Training Center, Faculty of Medicine, Chiang Mai University, Chiang Mai, 50200, Thailand; Cardiac Electrophysiology Unit, Department of Physiology, Faculty of Medicine, Chiang Mai University, Chiang Mai, 50200, Thailand; Center of Excellence in Cardiac Electrophysiology, Chiang Mai University, Chiang Mai, 50200, Thailand
| | - Titikorn Chunchai
- Neurophysiology Unit, Cardiac Electrophysiology Research and Training Center, Faculty of Medicine, Chiang Mai University, Chiang Mai, 50200, Thailand; Center of Excellence in Cardiac Electrophysiology, Chiang Mai University, Chiang Mai, 50200, Thailand
| | - Thidarat Jaiwongkam
- Neurophysiology Unit, Cardiac Electrophysiology Research and Training Center, Faculty of Medicine, Chiang Mai University, Chiang Mai, 50200, Thailand; Center of Excellence in Cardiac Electrophysiology, Chiang Mai University, Chiang Mai, 50200, Thailand
| | - Sasiwan Kerdphoo
- Neurophysiology Unit, Cardiac Electrophysiology Research and Training Center, Faculty of Medicine, Chiang Mai University, Chiang Mai, 50200, Thailand; Center of Excellence in Cardiac Electrophysiology, Chiang Mai University, Chiang Mai, 50200, Thailand
| | - Sirinart Kumfu
- Neurophysiology Unit, Cardiac Electrophysiology Research and Training Center, Faculty of Medicine, Chiang Mai University, Chiang Mai, 50200, Thailand; Cardiac Electrophysiology Unit, Department of Physiology, Faculty of Medicine, Chiang Mai University, Chiang Mai, 50200, Thailand; Center of Excellence in Cardiac Electrophysiology, Chiang Mai University, Chiang Mai, 50200, Thailand
| | - Wasana Pratchayasakul
- Neurophysiology Unit, Cardiac Electrophysiology Research and Training Center, Faculty of Medicine, Chiang Mai University, Chiang Mai, 50200, Thailand; Cardiac Electrophysiology Unit, Department of Physiology, Faculty of Medicine, Chiang Mai University, Chiang Mai, 50200, Thailand; Center of Excellence in Cardiac Electrophysiology, Chiang Mai University, Chiang Mai, 50200, Thailand
| | - Thienchai Pattarasakulchai
- Hyperbaric Oxygen Therapy Center, Faculty of Medicine, Chiang Mai University, Chiang Mai, 50200, Thailand
| | - Nipon Chattipakorn
- Neurophysiology Unit, Cardiac Electrophysiology Research and Training Center, Faculty of Medicine, Chiang Mai University, Chiang Mai, 50200, Thailand; Cardiac Electrophysiology Unit, Department of Physiology, Faculty of Medicine, Chiang Mai University, Chiang Mai, 50200, Thailand; Center of Excellence in Cardiac Electrophysiology, Chiang Mai University, Chiang Mai, 50200, Thailand
| | - Siriporn C Chattipakorn
- Neurophysiology Unit, Cardiac Electrophysiology Research and Training Center, Faculty of Medicine, Chiang Mai University, Chiang Mai, 50200, Thailand; Center of Excellence in Cardiac Electrophysiology, Chiang Mai University, Chiang Mai, 50200, Thailand; Department of Oral Biology and Diagnostic Sciences, Faculty of Dentistry, Chiang Mai University, Chiang Mai, 50200, Thailand.
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14
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Melchioretto EF, Zeni M, Veronez DADL, Filipak Neto F, Digner IDS, Fraga RD. Stereological study and analysis of oxidative stress during renal aging in rats. Acta Cir Bras 2020; 35:e351106. [PMID: 33331456 PMCID: PMC7748077 DOI: 10.1590/acta351106] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2020] [Accepted: 10/21/2020] [Indexed: 11/22/2022] Open
Abstract
PURPOSE To evaluate renal histological changes by stereology and morphometry and analyze the main markers of oxidative stress in rats undergoing natural aging. METHODS Seventy two Wistar rats were divided into six groups of 12 rats each, which were euthanized at 3, 6, 9, 12, 18, and 24 months of age. Right kidney was stereologically and morphometrically analyzed to calculate the volumetric density (Vv[glom]), numerical density (Nv[glom]) and glomerular volume (Vol[glom]). Left kidney was used to determine the levels of nonprotein thiols, lipid peroxidation, and protein carbonylation, as well as the activities of superoxide-dismutase and catalase enzymes. RESULTS Both Vv[glom] and Nv[glom] values showed gradual decreases between groups. Activity of superoxide-dismutase was elevated at 24 months of age, and the levels of nonprotein thiols were higher in older animals. Greater catalase activity and protein carbonylation were observed in animals between 6 and 12 months of age but lessened in older rats. Lipid peroxidation decreased in the older groups. CONCLUSIONS Morphometric and stereological analyses revealed a gradual decrease in the volume and density of renal glomeruli during aging, as well as kidney atrophy. These findings related to oxidative stress clarify many changes occurring in kidney tissues during senescence in rats.
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Affiliation(s)
- Eduardo Felippe Melchioretto
- Fellow PhD degree, Postgraduate Program in Surgical Clinic, Universidade Federal do Paraná, Curitiba - PR, Brazil. Conception and design, manuscript preparation and writing, critical revision
| | - Marcelo Zeni
- Fellow Master degree, Department of Urology, Medical School, Universidade Federal da Fronteira Sul, Chapecó - SC, Brazil. Design
| | - Djanira Aparecida da Luz Veronez
- PhD, Associate Professor, Department of Anatomy, Medical School, Universidade Federal do Paraná, Curitiba - PR, Brazil. Conception and design
| | - Francisco Filipak Neto
- PhD, Associate Professor, Department of Cellular and Molecular Biology, Medical School, Universidade Federal do Paraná, Curitiba - PR, Brazil. Conception and design
| | - Ingridy de Souza Digner
- Graduate student, Little Prince College, Curitiba - PR, Brazil. Design, manuscript preparation and writing, critical revision
| | - Rogerio de Fraga
- PhD, Associate Professor, Department of Urology, Medical School, Universidade Federal do Paraná, Curitiba - PR, Brazil. Conception and design
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15
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Feng W, Yang X, Feng M, Pan H, Liu J, Hu Y, Wang S, Zhang D, Ma F, Mao Y. Alginate Oligosaccharide Prevents against D-galactose-mediated Cataract in C57BL/6J Mice via Regulating Oxidative Stress and Antioxidant System. Curr Eye Res 2020; 46:802-810. [PMID: 33153341 DOI: 10.1080/02713683.2020.1842456] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
PURPOSE Alginate oligosaccharides (AOS), obtained from depolymerizing alginate, has multiple pharmacological benefits. Cataract is a common disease caused by turbidity of the lens protein due to lens metabolism disorders. This study aimed to test the effects and the underlying mechanisms of AOS on D-galactose (D-gal)-mediated cataract. MATERIALS AND METHODS A total of 45 8-week-old C57BL/6 J male mice were randomly divided into 5 groups. After eight weeks' intervention, the score of cataract was calculated depending on the turbidity of the lens. Hematoxylin and eosin (HE) and transmission electron microscope (TEM) images were observed. Superoxide dismutase (SOD) activity and malondialdehyde (MDA) level were measured by corresponding detection kits, respectively. SOD1, SOD2, catalase (CAT) and p53 protein expressions were examined by Western blot. Nuclear factor erythroid-2 related factor (Nrf2) and heme oxygenase-1 (HO-1) mRNA expressions were examined by Quantitative Real Time-PCR (RT-qPCR). RESULTS The score of the turbidity of the lens showed that AOS significantly delayed the cataractogenesis. HE staining and TEM imaging showed that AOS decreased the damage and senescence of lenses in D-gal-induced C57BL/6 J mice. We further detected aging marker p53 expression in crystalline lenses, and our result showed that AOS significantly inhibited p53 protein expression in D-gal-induced mice. In addition, SOD activity and MDA level detection results showed that AOS significantly increased the activity of SOD, and decreased the level of MDA in crystalline lenses homogenates of D-gal-induced aging mice. Western blot results showed that AOS attenuated the damage of D-gal in the protein expressions of antioxidative enzymes SOD1, SOD2 and CAT. RT-qPCR results showed that AOS suppressed the down-regulation of Nrf2 and HO-1 mRNA expressions induced by D-gal. CONCLUSIONS AOS prevents against D-gal-mediated cataract in C57BL/6 J mice via inhibiting oxidative stress and up-regulating antioxidant system. Consequently, our results suggest that AOS may be an effective therapeutic strategy against cataract.
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Affiliation(s)
- Wenjing Feng
- Department of Geriatric Medicine, The Affiliated Hospital of Qingdao University, Qingdao, China.,Department of Epidemiology and Health Statistics, The School of Public Health of Qingdao University, Qingdao, Shandong, China
| | - Xuejiao Yang
- Department of Ophthalmology, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Meiping Feng
- Department of Geriatric Medicine, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Hui Pan
- Department of Geriatric Medicine, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Jianya Liu
- Department of Geriatric Medicine, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Yi Hu
- Department of Geriatric Medicine, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Shan Wang
- Department of Geriatric Medicine, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Dongfeng Zhang
- Department of Epidemiology and Health Statistics, The School of Public Health of Qingdao University, Qingdao, Shandong, China
| | - Fenghua Ma
- Department of Geriatric Medicine, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Yongjun Mao
- Department of Geriatric Medicine, The Affiliated Hospital of Qingdao University, Qingdao, China
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16
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Ali A, Shah SA, Zaman N, Uddin MN, Khan W, Ali A, Riaz M, Kamil A. Vitamin D exerts neuroprotection via SIRT1/nrf-2/ NF-kB signaling pathways against D-galactose-induced memory impairment in adult mice. Neurochem Int 2020; 142:104893. [PMID: 33159979 DOI: 10.1016/j.neuint.2020.104893] [Citation(s) in RCA: 47] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2020] [Revised: 10/16/2020] [Accepted: 10/27/2020] [Indexed: 12/14/2022]
Abstract
Vitamin D (Vt. D) is one of the vital hormone having multiple functions in various tissues, including brain. Several evidences reported that Vt. D plays a significant part in memory and cognition as its inadequate amount may accelerate cognitive impairment. This study shows for the first time the antioxidant potential of Vt. D against D-Galactose (D-gal) induced oxidative stress mediated Alzheimer disease (AD) pathology in male adult albino mice. The result reveals that the mice exposed to D-gal (120 mg/kg) for eight weeks have pre-and post-synaptic dysfunction and impaired memory investigated through Morris water maze and Y-maze tests. This is followed by the suppressed Nuclear factor erythroid 2-related factor 2 (NRF2), Heme Oxygenase-1 (HO-1) and elevated expressions of Nuclear Factor kappa B (NF-kB), Tumor Necrosis Factor alpha (TNF-α) and Interleukin 1 beta (IL-1β) proteins in the brain homogenates evaluated through western blotting technique. On the other hand Vt. D (100 μg/kg) administration (three times a week for 4 weeks) activated Silent mating type information regulation 2 homolog 1 (SIRT1) and significantly improved both the neuronal synapse and memory, reduced oxidative stress by upregulating NRF-2 and HO-1 and downregulating NF-kB, TNF-α and IL-1β proteins expression. Most importantly, Vt. D significantly abrogate the amyloidogenic pathway of amyloid beta (Aβ) production against D-gal in the brains of adult male albino mice. These results reveal that Vt. D being an antioxidant agent plays a vital role in reducing the AD pathophysiology in D-gal induced animal model of aging, therefore act as a potential drug candidate in neurodegenerative diseases.
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Affiliation(s)
- Ammar Ali
- Department of Biotechnology, Abdul Wali Khan University, Mardan, Pakistan
| | - Shahid Ali Shah
- Department of Chemistry, Sarhad University of Information and Technology, Peshawar, Pakistan; Neuro Molecular Medicine Research Center (NMMRC), Ring Road, Peshawar, Pakistan
| | - Nasib Zaman
- Center for Biotechnology and Microbiology, University of Swat, Pakistan
| | | | - Wajid Khan
- Center for Biotechnology and Microbiology, University of Swat, Pakistan
| | - Abid Ali
- Department of Zoology, Abdul Wali Khan University, Mardan, Pakistan
| | - Muhammad Riaz
- Department of Biochemistry, Abdul Wali Khan University, Mardan, Pakistan
| | - Atif Kamil
- Department of Biotechnology, Abdul Wali Khan University, Mardan, Pakistan.
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17
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Shwe T, Bo-Htay C, Leech T, Ongnok B, Jaiwongkum T, Kerdphoo S, Palee S, Pratchayasakul W, Chattipakorn N, Chattipakorn SC. D-galactose-induced aging does not cause further deterioration in brain pathologies and cognitive decline in the obese condition. Exp Gerontol 2020; 138:111001. [DOI: 10.1016/j.exger.2020.111001] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2020] [Revised: 06/04/2020] [Accepted: 06/05/2020] [Indexed: 10/24/2022]
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18
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Galactose-Induced Skin Aging: The Role of Oxidative Stress. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2020; 2020:7145656. [PMID: 32655772 PMCID: PMC7317321 DOI: 10.1155/2020/7145656] [Citation(s) in RCA: 44] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/16/2020] [Revised: 05/17/2020] [Accepted: 05/26/2020] [Indexed: 02/07/2023]
Abstract
Skin aging has been associated with a higher dietary intake of carbohydrates, particularly glucose and galactose. In fact, the carbohydrates are capable of damaging the skin's vital components through nonenzymatic glycation, the covalent attachment of sugar to a protein, and subsequent production of advanced glycation end products (AGEs). This review is focused on the role of D-galactose in the development of skin aging and its relation to oxidative stress. The interest in this problem was dictated by recent findings that used in vitro and in vivo models. The review highlights the recent advances in the underlying molecular mechanisms of D-galactose-mediated cell senescence and cytotoxicity. We have also proposed the possible impact of galactosemia on skin aging and its clinical relevance. The understanding of molecular mechanisms of skin aging mediated by D-galactose can help dermatologists optimize methods for prevention and treatment of skin senescence and aging-related skin diseases.
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19
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Bo-Htay C, Shwe T, Higgins L, Palee S, Shinlapawittayatorn K, Chattipakorn SC, Chattipakorn N. Aging induced by D-galactose aggravates cardiac dysfunction via exacerbating mitochondrial dysfunction in obese insulin-resistant rats. GeroScience 2019; 42:233-249. [PMID: 31768765 DOI: 10.1007/s11357-019-00132-9] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2019] [Accepted: 10/24/2019] [Indexed: 12/20/2022] Open
Abstract
The prevalence of obesity and an aging population are increasing worldwide. Both obesity and aging are independently known to be associated with cardiac dysfunction. However, in obese insulin-resistant subjects, the effects of aging on metabolic status and cardiac and mitochondrial functions are not completely understood. We hypothesized that in the obese insulin-resistant condition, aging induced by D-galactose increases cardiac senescence markers and aggravates the impairment of metabolic parameters, cardiac and mitochondrial function, and increases oxidative stress, inflammation, apoptosis, and autophagy. Sixty-four male Wistar rats were fed with either normal diet (ND) or high-fat diet (HFD) for 12 weeks. Then, rats were divided into vehicle groups (0.9% NSS, subcutaneous injection (SC)) or D-galactose groups (150 mg/kg/day, SC). After 0.9%NSS or D-galactose treatment for 4 weeks and 8 weeks, metabolic and cardiac functions were determined. The heart was then removed to determine mitochondrial functions and enable biochemical studies. After 4 weeks of D-galactose injection, ND rats treated with D-galactose (NDD4), HFD rats treated with vehicle (HFV4), and HFD rats treated with D-galactose (HFD4) had reduced cardiac function, impaired cardiac mitochondrial function and autophagy, and increased oxidative stress, inflammation, and apoptosis. Interestingly, after 8 weeks, HFD rats treated with D-galactose (HFD8) had the worst impairment of cardiac and mitochondrial function, autophagy, and apoptosis in comparison to the other groups. Aging induced by D-galactose aggravated cardiac dysfunction in obese insulin-resistant rats through the worsening of cardiac mitochondrial function, autophagy, and increased apoptosis in a time-dependent manner.
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Affiliation(s)
- Cherry Bo-Htay
- Cardiac Electrophysiology Research and Training Center, Faculty of Medicine, Chiang Mai University, Chiang Mai, 50200, Thailand.,Cardiac Electrophysiology Unit, Department of Physiology, Faculty of Medicine, Chiang Mai University, Chiang Mai, 50200, Thailand.,Center of Excellence in Cardiac Electrophysiology Research, Chiang Mai University, Chiang Mai, 50200, Thailand
| | - Thazin Shwe
- Cardiac Electrophysiology Research and Training Center, Faculty of Medicine, Chiang Mai University, Chiang Mai, 50200, Thailand.,Cardiac Electrophysiology Unit, Department of Physiology, Faculty of Medicine, Chiang Mai University, Chiang Mai, 50200, Thailand.,Center of Excellence in Cardiac Electrophysiology Research, Chiang Mai University, Chiang Mai, 50200, Thailand
| | - Louis Higgins
- Cardiac Electrophysiology Research and Training Center, Faculty of Medicine, Chiang Mai University, Chiang Mai, 50200, Thailand.,Cardiac Electrophysiology Unit, Department of Physiology, Faculty of Medicine, Chiang Mai University, Chiang Mai, 50200, Thailand.,Center of Excellence in Cardiac Electrophysiology Research, Chiang Mai University, Chiang Mai, 50200, Thailand
| | - Siripong Palee
- Cardiac Electrophysiology Research and Training Center, Faculty of Medicine, Chiang Mai University, Chiang Mai, 50200, Thailand.,Center of Excellence in Cardiac Electrophysiology Research, Chiang Mai University, Chiang Mai, 50200, Thailand
| | - Krekwit Shinlapawittayatorn
- Cardiac Electrophysiology Research and Training Center, Faculty of Medicine, Chiang Mai University, Chiang Mai, 50200, Thailand.,Cardiac Electrophysiology Unit, Department of Physiology, Faculty of Medicine, Chiang Mai University, Chiang Mai, 50200, Thailand.,Center of Excellence in Cardiac Electrophysiology Research, Chiang Mai University, Chiang Mai, 50200, Thailand
| | - Siriporn C Chattipakorn
- Cardiac Electrophysiology Research and Training Center, Faculty of Medicine, Chiang Mai University, Chiang Mai, 50200, Thailand.,Center of Excellence in Cardiac Electrophysiology Research, Chiang Mai University, Chiang Mai, 50200, Thailand
| | - Nipon Chattipakorn
- Cardiac Electrophysiology Research and Training Center, Faculty of Medicine, Chiang Mai University, Chiang Mai, 50200, Thailand. .,Cardiac Electrophysiology Unit, Department of Physiology, Faculty of Medicine, Chiang Mai University, Chiang Mai, 50200, Thailand. .,Center of Excellence in Cardiac Electrophysiology Research, Chiang Mai University, Chiang Mai, 50200, Thailand.
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20
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Niedernhofer LJ, Gurkar AU, Wang Y, Vijg J, Hoeijmakers JHJ, Robbins PD. Nuclear Genomic Instability and Aging. Annu Rev Biochem 2019; 87:295-322. [PMID: 29925262 DOI: 10.1146/annurev-biochem-062917-012239] [Citation(s) in RCA: 148] [Impact Index Per Article: 29.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
The nuclear genome decays as organisms age. Numerous studies demonstrate that the burden of several classes of DNA lesions is greater in older mammals than in young mammals. More challenging is proving this is a cause rather than a consequence of aging. The DNA damage theory of aging, which argues that genomic instability plays a causal role in aging, has recently gained momentum. Support for this theory stems partly from progeroid syndromes in which inherited defects in DNA repair increase the burden of DNA damage leading to accelerated aging of one or more organs. Additionally, growing evidence shows that DNA damage accrual triggers cellular senescence and metabolic changes that promote a decline in tissue function and increased susceptibility to age-related diseases. Here, we examine multiple lines of evidence correlating nuclear DNA damage with aging. We then consider how, mechanistically, nuclear genotoxic stress could promote aging. We conclude that the evidence, in toto, supports a role for DNA damage as a nidus of aging.
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Affiliation(s)
- Laura J Niedernhofer
- Department of Molecular Medicine and the Center on Aging, The Scripps Research Institute Florida, Jupiter, Florida 33458, USA;
| | - Aditi U Gurkar
- Department of Molecular Medicine and the Center on Aging, The Scripps Research Institute Florida, Jupiter, Florida 33458, USA; .,Department of Medicine, Vascular Medicine Institute, University of Pittsburgh, Pittsburgh, Pennsylvania 15261, USA
| | - Yinsheng Wang
- Department of Chemistry, University of California, Riverside, California 92521, USA
| | - Jan Vijg
- Department of Genetics, Albert Einstein College of Medicine, Michael F. Price Center, Bronx, New York 10461, USA
| | - Jan H J Hoeijmakers
- Department of Molecular Genetics, Erasmus University Medical Center, 3015 CE Rotterdam, The Netherlands
| | - Paul D Robbins
- Department of Molecular Medicine and the Center on Aging, The Scripps Research Institute Florida, Jupiter, Florida 33458, USA;
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21
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How Acute Kidney Injury Contributes to Renal Fibrosis. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2019; 1165:117-142. [PMID: 31399964 DOI: 10.1007/978-981-13-8871-2_7] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Acute kidney injury (AKI) is a widespread clinical syndrome directly associated with patient short-term and long-term morbidity and mortality. During the last decade, the incidence rate of AKI has been increasing, the repeated and severe episodes of AKI have been recognized as a major risk factor chronic kidney diseases (CKD) and end-stage kidney disease (ESRD) leading to global disease burden. Proposed pathological processes and risk factors that add to the transition of AKI to CKD and ESRD include severity and frequency of kidney injury, older age, gender, genetics and chronic health conditions like diabetes, hypertension, and obesity. Therefore, there is a great interest in learning about the mechanism of AKI leading to renal fibrosis, the ultimate renal lesions of CKD. Over the last several years, a significant attention has been given to the field of renal fibrosis with impressive progression in knowing the mechanism of renal fibrosis to detailed cellular characterization and molecular pathways implicated in tubulointerstitial fibrosis. Research and clinical trial are underway for emerging biomarkers detecting early kidney injury, predicting kidney disease progression and developing strategies to efficiently treat AKI and to minimize AKI progression to CKD and ESRD. Specific interventions to prevent renal fibrosis are still experimental. Potential therapeutic advances based on those molecular mechanisms will hopefully offer promising insights into the development of new therapeutic interventions for patients in the near future.
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22
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Yanar K, Simsek B, Çaylı N, Övül Bozkır H, Mengi M, Belce A, Aydin S, Çakatay U. Caloric restriction and redox homeostasis in various regions of aging male rat brain: Is caloric restriction still worth trying even after early-adulthood?: Redox homeostasis and caloric restriction in brain. J Food Biochem 2018; 43:e12740. [PMID: 31353564 DOI: 10.1111/jfbc.12740] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2018] [Revised: 10/30/2018] [Accepted: 11/05/2018] [Indexed: 01/02/2023]
Abstract
Despite recent studies have shown that caloric restriction (CR) could improve some functional loss associated with brain aging, the biochemical effects of CR on brain aging are still not well understood on a quantifiable biochemical basis, including whether CR could be protective when started around middle adulthood, when age-related neurodegenerative diseases are thought to set in. Therefore, in the light of more than ever aging societies and increasing neurodegenerative diseases, we aimed to test the biochemical effects of CR on redox homeostasis in different parts of male Sprague-Dawley rat brain by using the biomarkers we consistently validated in our previous work (TOS, PCO, AOPP, AGEs, sRAGE, P-SH, LHPs, 4-HNE, TAS, Cu, Zn-SOD). Our results indicate that oxidative stress biomarkers are lower in CR group, implying a more favorable redox status that has been previously shown to be correlated with better neural function. PRACTICAL APPLICATIONS: We report that the beneficial effects of caloric restriction (CR) on various brain tissues result in significant improvements in biochemical markers, even though CR is not started in early adulthood. Hence, our select age group provides a sound redox status-related neurochemical understanding for many recent CR studies, where a functional loss was detected at this age.
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Affiliation(s)
- Karolin Yanar
- Cerrahpasa Faculty of Medicine, Department of Medical Biochemistry, Istanbul University-Cerrahpasa, Istanbul, Turkey
| | - Bahadir Simsek
- Cerrahpasa Faculty of Medicine, Department of Medical Biochemistry, Istanbul University-Cerrahpasa, Istanbul, Turkey
| | - Nisanur Çaylı
- Cerrahpasa Faculty of Medicine, Department of Medical Biochemistry, Istanbul University-Cerrahpasa, Istanbul, Turkey
| | - Haktan Övül Bozkır
- Cerrahpasa Faculty of Medicine, Department of Medical Biochemistry, Istanbul University-Cerrahpasa, Istanbul, Turkey
| | - Murat Mengi
- Faculty of Medicine, Department of Physiology, Namik Kemal University, Tekirdag, Turkey
| | - Ahmet Belce
- Faculty of Health Sciences, Bezmialem Vakif University, Istanbul, Turkey
| | - Seval Aydin
- Cerrahpasa Faculty of Medicine, Department of Medical Biochemistry, Istanbul University-Cerrahpasa, Istanbul, Turkey
| | - Ufuk Çakatay
- Cerrahpasa Faculty of Medicine, Department of Medical Biochemistry, Istanbul University-Cerrahpasa, Istanbul, Turkey
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23
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Zhao P, Wang J, Zhao W, Ma X, Sun H. Antifatigue and antiaging effects of Chinese rice wine in mice. Food Sci Nutr 2018; 6:2386-2394. [PMID: 30510739 PMCID: PMC6261172 DOI: 10.1002/fsn3.830] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2018] [Revised: 09/11/2018] [Accepted: 09/13/2018] [Indexed: 12/20/2022] Open
Abstract
Chinese rice wine (CRW) is widely known for keeping good health and commonly used in the traditional Chinese medicine prescription guiding drug. This study assesses the effects of CRW on antifatigue and antiaging activities in mice models. Mice were randomly divided into four groups performing with 0.25 ml of distilled water, 0.15, 0.25, and 0.4 ml of CRW for 15 consecutive days. The CRW could obviously increase the content of liver glycogen (LG) and decrease the levels of blood lactic acid (BLA)and blood urea nitrogen (BUN) to improve antifatigue ability. In antiaging assay, CRW significantly increased the activity of SOD in liver, the activities of GSH-Px and CAT in brain cortex, body quality, thymus index, and spleen index, and decreased liver MDA levels, liver total cholesterol content, and AChE levels in hippocampus. The CRW has potent antifatigue ability and could minimize the occurrence of age-associated disorders.
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Affiliation(s)
- Pan Zhao
- Key Laboratory of Animal Resistance Biology of Shandong ProvinceSchool of Life ScienceShandong Normal UniversityJinanChina
| | - Jing Wang
- Key Laboratory of Animal Resistance Biology of Shandong ProvinceSchool of Life ScienceShandong Normal UniversityJinanChina
| | - Wei Zhao
- Institute of Millet CropsHebei Academy of Agriculture and Forestry SciencesJiazhuang ShiChina
| | - Xiaoli Ma
- Central LaboratoryJinan Central Hospital Affiliated to Shandong UniversityJinanChina
| | - Haiji Sun
- Key Laboratory of Animal Resistance Biology of Shandong ProvinceSchool of Life ScienceShandong Normal UniversityJinanChina
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24
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Sun J, Zhang L, Zhang J, Ran R, Shao Y, Li J, Jia D, Zhang Y, Zhang M, Wang L, Wang Y. Protective effects of ginsenoside Rg1 on splenocytes and thymocytes in an aging rat model induced by d -galactose. Int Immunopharmacol 2018; 58:94-102. [DOI: 10.1016/j.intimp.2018.03.017] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2017] [Revised: 03/15/2018] [Accepted: 03/16/2018] [Indexed: 12/16/2022]
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Bo-Htay C, Palee S, Apaijai N, Chattipakorn SC, Chattipakorn N. Effects of d-galactose-induced ageing on the heart and its potential interventions. J Cell Mol Med 2018; 22:1392-1410. [PMID: 29363871 PMCID: PMC5824366 DOI: 10.1111/jcmm.13472] [Citation(s) in RCA: 66] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2017] [Accepted: 10/29/2017] [Indexed: 01/08/2023] Open
Abstract
Ageing is a strong independent risk factor for disability, morbidity and mortality. Post-mitotic cells including those in the heart are a particular risk to age-related deterioration. As the occurrence of heart disease is increasing rapidly with an ageing population, knowledge regarding the mechanisms of age-related cardiac susceptibility and possible therapeutic interventions needs to be acquired to prevent advancing levels of heart disease. To understand more about the ageing heart, numerous aged animal models are being used to explore the underlying mechanisms. Due to time-consuming for investigations involving naturally aged animals, mimetic ageing models are being utilized to assess the related effects of ageing on disease occurrence. d-galactose is one of the substances used to instigate ageing in various models, and techniques involving this have been widely used since 1991. However, the mechanism through which d-galactose induces ageing in the heart remains unclear. The aim of this review was to comprehensively summarize the current findings from in vitro and in vivo studies on the effects of d-galactose-induced ageing on the heart, and possible therapeutic interventions against ageing heart models. From this review, we hope to provide invaluable information for future studies and based on the findings from experiments involving animals, we can inform possible therapeutic strategies for the prevention of age-related heart diseases in clinical settings.
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Affiliation(s)
- Cherry Bo-Htay
- Cardiac Electrophysiology Research Training Center, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand.,Department of Physiology, Faculty of Medicine, Cardiac Electrophysiology Unit, Chiang Mai University, Chiang Mai, Thailand.,Center of Excellence in Cardiac Electrophysiology, Chiang Mai University, Chiang Mai, Thailand
| | - Siripong Palee
- Cardiac Electrophysiology Research Training Center, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand.,Department of Physiology, Faculty of Medicine, Cardiac Electrophysiology Unit, Chiang Mai University, Chiang Mai, Thailand.,Center of Excellence in Cardiac Electrophysiology, Chiang Mai University, Chiang Mai, Thailand
| | - Nattayaporn Apaijai
- Cardiac Electrophysiology Research Training Center, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand.,Department of Physiology, Faculty of Medicine, Cardiac Electrophysiology Unit, Chiang Mai University, Chiang Mai, Thailand.,Center of Excellence in Cardiac Electrophysiology, Chiang Mai University, Chiang Mai, Thailand
| | - Siriporn C Chattipakorn
- Cardiac Electrophysiology Research Training Center, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand.,Center of Excellence in Cardiac Electrophysiology, Chiang Mai University, Chiang Mai, Thailand.,Department of Oral Biology and Diagnostic Science, Faculty of Dentistry, Chiang Mai University, Chiang Mai, Thailand
| | - Nipon Chattipakorn
- Cardiac Electrophysiology Research Training Center, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand.,Department of Physiology, Faculty of Medicine, Cardiac Electrophysiology Unit, Chiang Mai University, Chiang Mai, Thailand.,Center of Excellence in Cardiac Electrophysiology, Chiang Mai University, Chiang Mai, Thailand
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26
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Zuo H, Liu X, Wang D, Li Y, Xu X, Peng R, Song T. RKIP-Mediated NF-κB Signaling is involved in ELF-MF-mediated improvement in AD rat. Int J Med Sci 2018; 15:1658-1666. [PMID: 30588189 PMCID: PMC6299414 DOI: 10.7150/ijms.28411] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/09/2018] [Accepted: 10/12/2018] [Indexed: 12/24/2022] Open
Abstract
In a previous study, we reported the positive effects of extremely low frequency electromagnetic field (ELF-MF) exposure on Alzheimer's disease (AD) rats; however, the underlying mechanism remains unclear. In addition, we found that Raf-1 kinase inhibitor protein (RKIP) was downregulated by microwave exposure in the rat hippocampus. Our hypothesis was that RKIP-mediated NF-κB pathway signaling is involved in the effect of ELF-MF on the AD rat. In this study, D-galactose intraperitoneal (50 mg/kg/d for 42 d) and Aβ25-35 hippocampal (5 μL/unilateral, bilateral, single-dose) injection were implemented to establish an AD rat model. Animals were exposed to 50 Hz and 400 µT ELF-MF for 60 continuous days. The spatial memory ability of the rat was then tested using the Morris water maze. Protein expression and interaction were detected by western blotting and co-immunoprecipitation for RKIP-mediated NF-κB pathway factors. The results showed that ELF-MF exposure partially improved the cognitive disorder, upregulated the levels of RKIP, TAK1, and the RKIP/TAK1 interaction, but downregulated p-IKK levels in AD rats. These results indicated that RKIP-mediated NF-κB pathway signaling plays an important role in the ELF-MF exposure-mediated improvements in the AD rat. Our study suggested that ELF-MF exposure might have a potential therapeutic value for AD. Further in depth studies are required in the future.
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Affiliation(s)
- Hongyan Zuo
- Department of Experimental Pathology, Beijing Institute of Radiation Medicine, Beijing, China
| | - Xiao Liu
- Department of Experimental Pathology, Beijing Institute of Radiation Medicine, Beijing, China
| | - Dewen Wang
- Department of Experimental Pathology, Beijing Institute of Radiation Medicine, Beijing, China
| | - Yang Li
- Department of Experimental Pathology, Beijing Institute of Radiation Medicine, Beijing, China
| | - Xinping Xu
- Department of Experimental Pathology, Beijing Institute of Radiation Medicine, Beijing, China
| | - Ruiyun Peng
- Department of Experimental Pathology, Beijing Institute of Radiation Medicine, Beijing, China
| | - Tao Song
- Beijing Key Laboratory of Bioelectromagnetism, Institute of Electrical Engineering, Chinese Academy of Sciences, Beijing, China
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27
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Role of D-galactose-induced brain aging and its potential used for therapeutic interventions. Exp Gerontol 2017; 101:13-36. [PMID: 29129736 DOI: 10.1016/j.exger.2017.10.029] [Citation(s) in RCA: 160] [Impact Index Per Article: 22.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2017] [Revised: 10/27/2017] [Accepted: 10/30/2017] [Indexed: 12/12/2022]
Abstract
Aging is a phenomenon that all living organisms inevitably face. Every year, 9.9million people, globally, suffer from dementia, an indicator of the aging brain. Brain aging is significantly associated with mitochondrial dysfunction. This is characterized by a decrease in the activity of respiratory chain enzymes and ATP production, and increased free radical generation, mitochondrial deoxyribonucleic acid (DNA) mutations, and impaired mitochondrial structures. To get a better understanding of aging and to prevent its effects on many organs, chronic systemic administration of D-galactose was used to artificially create brain senescence in animal models and established to be beneficial for studies of anti-aging therapeutic interventions. Several studies have shown that D-galactose-induced brain aging which does so not only by causing mitochondrial dysfunction, but also by increasing oxidative stress, inflammation, and apoptosis, as well as lowering brain-derived neurotrophic factors. All of these defects finally lead to cognitive decline. Various therapeutic approaches which act on mitochondria and cognition were evaluated to assess their effectiveness in the battle to reverse brain aging. The aim of this article is to comprehensively summarize and discuss the underlying mechanisms involved in D-galactose-induced brain aging, particularly as regards alterations in brain mitochondria and cognitive function. In addition, the aim is to summarize the different therapeutic approaches which have been utilized to address D-galactose-induced brain aging.
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28
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Hewitson TD, Holt SG, Smith ER. Progression of Tubulointerstitial Fibrosis and the Chronic Kidney Disease Phenotype - Role of Risk Factors and Epigenetics. Front Pharmacol 2017; 8:520. [PMID: 28848437 PMCID: PMC5550676 DOI: 10.3389/fphar.2017.00520] [Citation(s) in RCA: 47] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2017] [Accepted: 07/24/2017] [Indexed: 12/11/2022] Open
Abstract
Although the kidney has capacity to repair after mild injury, ongoing or severe damage results in scarring (fibrosis) and an associated progressive loss of kidney function. However, despite its universal significance, evidence highlights a population based heterogeneity in the trajectory of chronic kidney disease (CKD) in these patients. To explain the heterogeneity of the CKD phenotype requires an understanding of the relevant risk factors for fibrosis. These factors include both the extrinsic nature of injury, and intrinsic factors such as age, gender, genetics, and perpetual activation of fibroblasts through priming. In many cases an additional level of regulation is provided by epigenetic mechanisms which integrate the various pro-fibrotic and anti-fibrotic triggers in fibrogenesis. In this review we therefore examine the various molecular and structural changes of fibrosis, and how they are influenced by extrinsic and intrinsic factors. Our aim is to provide a unifying hypothesis to help explain the transition from acute to CKD.
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Affiliation(s)
- Timothy D Hewitson
- Department of Nephrology, The Royal Melbourne Hospital, MelbourneVIC, Australia.,Department of Medicine, The Royal Melbourne Hospital, The University of Melbourne, MelbourneVIC, Australia
| | - Stephen G Holt
- Department of Nephrology, The Royal Melbourne Hospital, MelbourneVIC, Australia.,Department of Medicine, The Royal Melbourne Hospital, The University of Melbourne, MelbourneVIC, Australia
| | - Edward R Smith
- Department of Nephrology, The Royal Melbourne Hospital, MelbourneVIC, Australia.,Department of Medicine, The Royal Melbourne Hospital, The University of Melbourne, MelbourneVIC, Australia
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29
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Mo ZZ, Liu YH, Li CL, Xu LQ, Wen LL, Xian YF, Lin ZX, Zhan JYX, Chen JN, Xu FF, Su ZR. Protective Effect of SFE-CO2 of Ligusticum chuanxiong Hort Against d-Galactose-Induced Injury in the Mouse Liver and Kidney. Rejuvenation Res 2017; 20:231-243. [DOI: 10.1089/rej.2016.1870] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- Zhi-Zhun Mo
- Guangdong Provincial Key Laboratory of New Chinese Medicinals Development and Research, Guangzhou University of Chinese Medicine, Guangzhou, P.R. China
- School of Chinese Medicine, The Chinese University of Hong Kong, Shatin, N.T., Hong Kong SAR, China
| | - Yu-Hong Liu
- Guangdong Provincial Key Laboratory of New Chinese Medicinals Development and Research, Guangzhou University of Chinese Medicine, Guangzhou, P.R. China
| | - Cai-Lan Li
- Guangdong Provincial Key Laboratory of New Chinese Medicinals Development and Research, Guangzhou University of Chinese Medicine, Guangzhou, P.R. China
| | - Lie-Qiang Xu
- Guangdong Provincial Key Laboratory of New Chinese Medicinals Development and Research, Guangzhou University of Chinese Medicine, Guangzhou, P.R. China
| | - Ling-Ling Wen
- Guangdong Provincial Key Laboratory of New Chinese Medicinals Development and Research, Guangzhou University of Chinese Medicine, Guangzhou, P.R. China
| | - Yan-Fang Xian
- School of Chinese Medicine, The Chinese University of Hong Kong, Shatin, N.T., Hong Kong SAR, China
| | - Zhi-Xiu Lin
- School of Chinese Medicine, The Chinese University of Hong Kong, Shatin, N.T., Hong Kong SAR, China
| | - Janis Ya-Xian Zhan
- Guangdong Provincial Key Laboratory of New Chinese Medicinals Development and Research, Guangzhou University of Chinese Medicine, Guangzhou, P.R. China
| | - Jian-Nan Chen
- Guangdong Provincial Key Laboratory of New Chinese Medicinals Development and Research, Guangzhou University of Chinese Medicine, Guangzhou, P.R. China
| | - Fang-Fang Xu
- The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangdong Provincial Academy of Chinese Medical Sciences, Guangzhou, P.R. China
| | - Zi-Ren Su
- Guangdong Provincial Key Laboratory of New Chinese Medicinals Development and Research, Guangzhou University of Chinese Medicine, Guangzhou, P.R. China
- Dongguan Mathematical Engineering Academy of Chinese Medicine, Guangzhou University of Chinese Medicine, Dongguan, P.R. China
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30
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Liu C, Hu J, Mao Z, Kang H, Liu H, Fu W, Lv Y, Zhou F. Acute kidney injury and inflammatory response of sepsis following cecal ligation and puncture in d-galactose-induced aging rats. Clin Interv Aging 2017; 12:593-602. [PMID: 28408808 PMCID: PMC5384694 DOI: 10.2147/cia.s132277] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023] Open
Abstract
Background Recently, the d-galactose (d-gal)-induced mimetic aging rat model has been widely used in studies of age-associated diseases, which have shown that chronic d-gal exposure induces premature aging similar to natural aging in rats. With the increasing rate of sepsis in the geriatric population, an easy-access animal model for preclinical studies of elderly sepsis is urgently needed. This study investigates whether a sepsis model that is established in d-gal-induced aging rats can serve as a suitable model for preclinical studies of elderly patients with sepsis. Objective To investigate the acute kidney injury (AKI) and inflammatory response of sepsis following cecal ligation and puncture (CLP) in d-gal-induced aging rats. Methods Twelve-week-old male Sprague Dawley rats were divided into low-dose d-gal (L d-gal, 125 mg/kg/d), high-dose d-gal (H d-gal, 500 mg/kg/d), and control groups. After daily subcutaneous injection of d-gal for 6 weeks, the CLP method was used to establish a sepsis model. Results The mortality was 73.3%, 40%, and 33.3% in the H d-gal, L d-gal, and control groups, respectively. Blood urea nitrogen, creatinine, plasma neutrophil gelatinase-associated lipocalin, interleukin-6, interleukin-10, and tumor necrosis factor-α were markedly increased in the H d-gal group after establishment of the sepsis model (H d-gal vs control, P<0.05 at 12 h and 24 h post-CLP). The rate of severe AKI (RIFLE-F) at 24 h post-CLP was 43% for both the control and L d-gal groups and 80% for the H d-gal group. Conclusion High-dose- d-gal-induced aging rats are more likely to die from sepsis than are young rats, and probably this is associated with increased severity of septic AKI and an increased inflammatory response. Therefore, use of the high-dose- d-gal-induced aging rat model of sepsis for preclinical studies can provide more useful information for the treatment of sepsis in elderly patients.
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Affiliation(s)
- Chao Liu
- Department of Critical Care Medicine, Chinese People's Liberation Army General Hospital, Beijing, People's Republic of China
| | - Jie Hu
- Department of Critical Care Medicine, Chinese People's Liberation Army General Hospital, Beijing, People's Republic of China
| | - Zhi Mao
- Department of Critical Care Medicine, Chinese People's Liberation Army General Hospital, Beijing, People's Republic of China
| | - Hongjun Kang
- Department of Critical Care Medicine, Chinese People's Liberation Army General Hospital, Beijing, People's Republic of China
| | - Hui Liu
- Department of Critical Care Medicine, Chinese People's Liberation Army General Hospital, Beijing, People's Republic of China
| | - Wanlei Fu
- Department of Pathology, Xinqiao Hospital, Third Military Medical University, Chongqing, People's Republic of China
| | - Yangfan Lv
- Department of Pathology, Xinqiao Hospital, Third Military Medical University, Chongqing, People's Republic of China
| | - Feihu Zhou
- Department of Critical Care Medicine, Chinese People's Liberation Army General Hospital, Beijing, People's Republic of China
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31
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Sang Y, Zhang F, Wang H, Yao J, Chen R, Zhou Z, Yang K, Xie Y, Wan T, Ding H. Apigenin exhibits protective effects in a mouse model of d-galactose-induced aging via activating the Nrf2 pathway. Food Funct 2017; 8:2331-2340. [DOI: 10.1039/c7fo00037e] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
The aim of the present research was to study the protective effects and underlying mechanisms of apigenin on d-galactose-induced aging mice.
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32
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Fan Y, Xia J, Jia D, Zhang M, Zhang Y, Huang G, Wang Y. Mechanism of ginsenoside Rg1 renal protection in a mouse model of d-galactose-induced subacute damage. PHARMACEUTICAL BIOLOGY 2016; 54:1815-1821. [PMID: 26730750 DOI: 10.3109/13880209.2015.1129543] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/11/2015] [Revised: 10/14/2015] [Accepted: 12/04/2015] [Indexed: 06/05/2023]
Abstract
Context Ginseng is a widely used herbal medicine in China but its mechanism of action remains unclear. Objective The objectives of this work were to study the protective effect of ginsenoside Rg1 on subacute murine renal damage induced by d-galactose and its mechanism. Materials and methods C57BL/6J mice were injected with 120 mg/kg/d (sc) d-galactose for 1 week, followed by a combined treatment of Rg1 20 mg/kg/d (ip) and 120 mg/kg/d d-galactose (sc) for 5 weeks. Mice were injected with the 0.9% saline 0.2 mL/d (sc) and 120 mg/kg/d d-galactose (sc) for 6 weeks in the control group and the d-galactose group, respectively. After 6 weeks, urea, creatinine, uric acid, cystatin (Cys-C), senescence-associated β-galactosidase (SA-β-gal) staining positive kidney cells, superoxide dismutase (SOD), glutathione peroxidase (GSH-PX), malondialdehyde (MDA), glycation end products (AGEs) and 8-hydroxy-2 deoxyguanosine (8-OH-dG) were measured. Results Treatment with Rg1 ameliorated kidney function and aging state (urea from 17.19 ± 1.09 to 15.77 ± 1.22 mmol·L (-) (1), creatinine from 29.40 ± 5.72 to 22.60 ± 3.97 μmol·L (-) (1), uric acid from 86.80 ± 5.97 to 72.80 ± 10.61 μmol·L (-) (1), Cys-C from 0.23 ± 0.03 to 0.18 ± 0.05 mg·L (-) (1), ROD of SA-β-gal from 56.32 ± 10.48 to 26.78 ± 7.34, SOD from 150.22 ± 19.07 to 190.56 ± 15.83 U·(mg·prot) (-1), MDA from 9.28 ± 1.59 to 3.17 ± 0.82 nmol·(mg·prot) (-1), GSH-PX from 15.68 ± 2.11 to 20.32 ± 2.96 U·(mg·prot) (-1) as well as regulated glomerulus morphology (glomerulus diameter from 775.77 ± 18.41 to 695.04 ± 14.61 μm, renal capsule width from 39.56 ± 3.51 to 31.42 ± 2.70 μm, glomerulus basement membrane from 206.03 ± 16.22 to 157.27 ± 15.70 nm, podocyte slit from 55.21 ± 8.55 to 37.63 ± 6.65 nm). Conclusions Ginsenoside Rg1 can antagonise d-galactose subacute renal damage in mice and this may occur due to alleviating oxidative stress injury.
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Affiliation(s)
- Yanling Fan
- a Department of Histology and Embryology, Laboratory of Stem Cells and Tissue Engineering , Chongqing Medical University , Chongqing , China
| | - Jieyu Xia
- a Department of Histology and Embryology, Laboratory of Stem Cells and Tissue Engineering , Chongqing Medical University , Chongqing , China
| | - Daoyong Jia
- a Department of Histology and Embryology, Laboratory of Stem Cells and Tissue Engineering , Chongqing Medical University , Chongqing , China
| | - Mengsi Zhang
- a Department of Histology and Embryology, Laboratory of Stem Cells and Tissue Engineering , Chongqing Medical University , Chongqing , China
| | - Yanyan Zhang
- a Department of Histology and Embryology, Laboratory of Stem Cells and Tissue Engineering , Chongqing Medical University , Chongqing , China
| | - Guoning Huang
- b Chongqing Reproductive and Genetic Institute , Chongqing , China
| | - Yaping Wang
- a Department of Histology and Embryology, Laboratory of Stem Cells and Tissue Engineering , Chongqing Medical University , Chongqing , China
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Hydrogen sulfide mediates the protection of dietary restriction against renal senescence in aged F344 rats. Sci Rep 2016; 6:30292. [PMID: 27456368 PMCID: PMC4960595 DOI: 10.1038/srep30292] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2016] [Accepted: 07/01/2016] [Indexed: 12/02/2022] Open
Abstract
Renal aging is always accompanied by increased oxidative stress. Hydrogen sulfide (H2S) can be up-regulated by 50% dietary restriction (DR) for 7-day and can block mitochondrial oxidative stress. H2S production exerts a critical role in yeast, worm, and fruit fly models of DR-mediated longevity. In this study, we found that renal aging could be attenuated by 30% DR for 6-month (DR-6M) and life-long (DR-LL), but not for 6-week (DR-6W). The expressions of cystathionine-γ-lyase (CGL) and cystathionine-β- synthase (CBS) were improved by DR-6M and DR-LL. Endogenous H2S production shared the same trend with CBS and CGL, while glutathione (GSH) didn’t. When comparing efficiencies of DR for different durations, more evident production of H2S was found in DR-6M and DR-LL than in DR-6W. Finally the level of oxidative stress was improved by DR-6M and DR-LL rather than by DR-6W. It concluded that aged rats had the ability to produce enough H2S on 30% DR interventions protecting against renal aging, and the effect of DR for long-term were more significant than that of DR for short-term.
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Yanar K, Atukeren P, Cebe T, Kunbaz A, Ozan T, Kansu AD, Durmaz S, Güleç V, Belce A, Aydın S, Çakatay U, Rizvi SI. Ameliorative Effects of Testosterone Administration on Renal Redox Homeostasis in Naturally Aged Rats. Rejuvenation Res 2015; 18:299-312. [DOI: 10.1089/rej.2014.1640] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- Karolin Yanar
- Department of Medical Biochemistry, Cerrahpaşa Faculty of Medicine, Istanbul University, Istanbul, Turkey
| | - Pınar Atukeren
- Department of Medical Biochemistry, Cerrahpaşa Faculty of Medicine, Istanbul University, Istanbul, Turkey
| | - Tamer Cebe
- Basic Sciences, Cerrahpaşa Faculty of Medicine, Istanbul University, Istanbul, Turkey
| | - Ahmad Kunbaz
- Basic Sciences, Cerrahpaşa Faculty of Medicine, Istanbul University, Istanbul, Turkey
| | - Tuna Ozan
- Basic Sciences, Cerrahpaşa Faculty of Medicine, Istanbul University, Istanbul, Turkey
| | - Ahmet Doğukan Kansu
- Basic Sciences, Cerrahpaşa Faculty of Medicine, Istanbul University, Istanbul, Turkey
| | - Selahattin Durmaz
- Basic Sciences, Cerrahpaşa Faculty of Medicine, Istanbul University, Istanbul, Turkey
| | - Veysel Güleç
- Basic Sciences, Cerrahpaşa Faculty of Medicine, Istanbul University, Istanbul, Turkey
| | - Ahmet Belce
- Department of Nursing, Faculty of Health Sciences, Bezmialem Vakıf University, Istanbul, Turkey
| | - Seval Aydın
- Department of Medical Biochemistry, Cerrahpaşa Faculty of Medicine, Istanbul University, Istanbul, Turkey
| | - Ufuk Çakatay
- Department of Medical Biochemistry, Cerrahpaşa Faculty of Medicine, Istanbul University, Istanbul, Turkey
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Liu X, Zuo H, Wang D, Peng R, Song T, Wang S, Xu X, Gao Y, Li Y, Wang S, Wang L, Zhao L. Improvement of spatial memory disorder and hippocampal damage by exposure to electromagnetic fields in an Alzheimer's disease rat model. PLoS One 2015; 10:e0126963. [PMID: 25978363 PMCID: PMC4433192 DOI: 10.1371/journal.pone.0126963] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2014] [Accepted: 04/09/2015] [Indexed: 01/05/2023] Open
Abstract
Although some epidemiological investigations showed a potential association between long-term exposure of extremely low frequency electromagnetic fields (ELF-EMF) and Alzheimer’s disease (AD), no reasonable mechanism can explain this association, and the related animal experiments are rare. In this study, ELF-EMF exposure (50Hz 400µT 60d) combined with D-galactose intraperitoneal (50mg/kg, q.d., 42d) and Aβ25–35 hippocampal (5μl/unilateral, bilateral, single-dose) injection was implemented to establish a complex rat model. Then the effects of ELF-EMF exposure on AD development was studied by using the Morris water maze, pathological analysis, and comparative proteomics. The results showed that ELF-EMF exposure delayed the weight gain of rats, and partially improved cognitive and clinicopathologic symptoms of AD rats. The differential proteomic analysis results suggest that synaptic transmission, oxidative stress, protein degradation, energy metabolism, Tau aggregation, and inflammation involved in the effects mentioned above. Therefore, our findings indicate that certain conditions of ELF-EMF exposure could delay the development of AD in rats.
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Affiliation(s)
- Xiao Liu
- Department of Experimental Pathology, Beijing Institute of Radiation Medicine, 27 Taiping Road, Haidian District, Beijing, China
| | - Hongyan Zuo
- Department of Experimental Pathology, Beijing Institute of Radiation Medicine, 27 Taiping Road, Haidian District, Beijing, China
- * E-mail: (HZ); (DW)
| | - Dewen Wang
- Department of Experimental Pathology, Beijing Institute of Radiation Medicine, 27 Taiping Road, Haidian District, Beijing, China
- * E-mail: (HZ); (DW)
| | - Ruiyun Peng
- Department of Experimental Pathology, Beijing Institute of Radiation Medicine, 27 Taiping Road, Haidian District, Beijing, China
| | - Tao Song
- Beijing Key Laboratory of Bioelectromagnetism, Institute of Electrical Engineering, Chinese Academy of Sciences, 6 North Second Street, Zhongguancun, Beijing, China
| | - Shuiming Wang
- Department of Experimental Pathology, Beijing Institute of Radiation Medicine, 27 Taiping Road, Haidian District, Beijing, China
| | - Xinping Xu
- Department of Experimental Pathology, Beijing Institute of Radiation Medicine, 27 Taiping Road, Haidian District, Beijing, China
| | - Yabing Gao
- Department of Experimental Pathology, Beijing Institute of Radiation Medicine, 27 Taiping Road, Haidian District, Beijing, China
| | - Yang Li
- Department of Experimental Pathology, Beijing Institute of Radiation Medicine, 27 Taiping Road, Haidian District, Beijing, China
| | - Shaoxia Wang
- Department of Experimental Pathology, Beijing Institute of Radiation Medicine, 27 Taiping Road, Haidian District, Beijing, China
| | - Lifeng Wang
- Department of Experimental Pathology, Beijing Institute of Radiation Medicine, 27 Taiping Road, Haidian District, Beijing, China
| | - Li Zhao
- Department of Experimental Pathology, Beijing Institute of Radiation Medicine, 27 Taiping Road, Haidian District, Beijing, China
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Uzun D, Yanar K, Atukeren P, Cebe T, Mengi M, Ozan T, Kunbaz A, Kuruç AI, Çakatay U, Aydın S. Age-related changes in rat prostate tissue; perspective of protein oxidation. Aging Male 2015; 18:54-9. [PMID: 25166625 DOI: 10.3109/13685538.2014.951921] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
BACKGROUND Increased systemic oxidative stress is considered as an important risk factor for prostate cancer occurrence; however, the relationship between impaired redox homeostasis of prostate tissue and aging remains unclear. OBJECTIVE In our study, we hypothesized that age-related deterioration of redox homeostasis in prostate tissue may be considered as a predisposing factor for prostate cancer occurrence. METHODS Sprague-Dawley rats were divided into two groups as young control (5 months) and naturally aged (24 months). We investigated the levels of oxidant and antioxidant parameters in prostate tissue. RESULTS Advanced oxidation protein products, protein carbonyl, non-protein thiol and lipid hydroperoxides levels of aged rats were significantly higher than in the young control rats (p < 0.01, p < 0.05, p < 0.001, p < 0.05, respectively). Additionally, antioxidant activity of Cu-Zn-superoxide dismutase in elderly group was significantly lower than young controls (p < 0.05). CONCLUSIONS We suggest that increased non-protein thiol levels found in aged rats may prevent further dissemination of oxidative protein damage. We also propose that the increased levels of oxidative protein damage markers and decreased Cu-Zn superoxide dismutase activity in aged prostate may be considered as a predisposing factor for prostate cancer. Further studies are warranted to clarify all these oxidative changes as initiation factors for prostate cancer in the association of aging with prostate cancer.
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Affiliation(s)
- Duygu Uzun
- Basic Sciences, Istanbul Faculty of Medicine, Istanbul University , Istanbul , Turkey
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Cebe T, Yanar K, Atukeren P, Ozan T, Kuruç AI, Kunbaz A, Sitar ME, Mengi M, Aydın MŞ, Eşrefoğlu M, Aydın S, Çakatay U. A comprehensive study of myocardial redox homeostasis in naturally and mimetically aged rats. AGE (DORDRECHT, NETHERLANDS) 2014; 36:9728. [PMID: 25384832 PMCID: PMC4226800 DOI: 10.1007/s11357-014-9728-y] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/22/2014] [Accepted: 10/29/2014] [Indexed: 05/31/2023]
Abstract
Age-related myocardial dysfunction has important implications with impaired redox homeostasis. Current study focused on investigation of redox homeostasis and histopathological changes in the myocardium of mimetically (MA), naturally aged (NA), and young control (YC) rats. Chronic D-galactose administration to young male Wistar rats (5 months old) was used to set up experimental aging models. We investigated 16 different oxidative damage biomarkers which have evaluated redox homeostasis of cellular macromolecules such as protein, lipid, and DNA. As a protein oxidation biomarker, advanced oxidation end products, protein carbonyl groups, protein-bound advanced glycation end products, dityrosine, kynurenine, and N-formylkynurenine concentrations in MA and NA rats were found to be significantly higher compared to those in YC rats. On the other hand, the levels of protein thiol groups were not significantly different between groups, whereas lipid peroxidation biomarkers such as conjugated diens, lipid hydroperoxides, and malondialdehyde in MA and NA rats were found to be significantly higher in comparison to those in YCs. For the assessment of oxidative DNA damage, we analyzed eight hydroxy-5'-deoxyguanosine concentrations of MA and NA groups which were higher than YCs. As an antioxidant status in the MA and NA groups, Cu-Zn superoxide dismutase, ferric reducing antioxidant power, and total thiol levels were lower than those in the YCs. Only nonprotein thiol levels were not significantly different. We also observed similar histopathological changes in MA and NA rats. We concluded that the mimetic aging model could be considered as a reliable experimental model for myocardial senescence.
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Affiliation(s)
- Tamer Cebe
- />Basic Sciences, Cerrahpaşa Faculty of Medicine, Istanbul University, Istanbul, Turkey
| | - Karolin Yanar
- />Department of Medical Biochemistry, Cerrahpaşa Faculty of Medicine, Istanbul University, 34098 Fatih, Istanbul Turkey
| | - Pınar Atukeren
- />Department of Medical Biochemistry, Cerrahpaşa Faculty of Medicine, Istanbul University, 34098 Fatih, Istanbul Turkey
| | - Tuna Ozan
- />Basic Sciences, Cerrahpaşa Faculty of Medicine, Istanbul University, Istanbul, Turkey
| | - Aylin Irmak Kuruç
- />Basic Sciences, Cerrahpaşa Faculty of Medicine, Istanbul University, Istanbul, Turkey
| | - Ahmad Kunbaz
- />Basic Sciences, Cerrahpaşa Faculty of Medicine, Istanbul University, Istanbul, Turkey
| | - Mustafa Erinç Sitar
- />Department of Medical Biochemistry, Cerrahpaşa Faculty of Medicine, Istanbul University, 34098 Fatih, Istanbul Turkey
| | - Murat Mengi
- />Department of Physiology, Cerrahpaşa Faculty of Medicine, Istanbul University, Istanbul, Turkey
| | - Mehmet Şerif Aydın
- />Department of Histology and Embryology, Bezmialem Vakif University Medical Faculty, Istanbul, Turkey
| | - Mukaddes Eşrefoğlu
- />Department of Histology and Embryology, Bezmialem Vakif University Medical Faculty, Istanbul, Turkey
| | - Seval Aydın
- />Department of Medical Biochemistry, Cerrahpaşa Faculty of Medicine, Istanbul University, 34098 Fatih, Istanbul Turkey
| | - Ufuk Çakatay
- />Department of Medical Biochemistry, Cerrahpaşa Faculty of Medicine, Istanbul University, 34098 Fatih, Istanbul Turkey
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Aksu U, Yanar K, Terzioglu D, Erkol T, Ece E, Aydin S, Uslu E, Çakatay U. Effect of tempol on redox homeostasis and stress tolerance in mimetically aged Drosophila. ARCHIVES OF INSECT BIOCHEMISTRY AND PHYSIOLOGY 2014; 87:13-25. [PMID: 25044374 DOI: 10.1002/arch.21176] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
We aimed to test our hypothesis that scavenging reactive oxygen species (ROS) with tempol, a membrane permeable antioxidant, affects the type and magnitude of oxidative damage and stress tolerance through mimetic aging process in Drosophila. Drosophila colonies were randomly divided into three groups: (1) no D-galactose, no tempol; (2) D-galactose without tempol; (3) D-galactose, but with tempol. Mimetic aging was induced by d-galactose administration. The tempol-administered flies received tempol at the concentration of 0.2% in addition to d-galactose. Thiobarbituric acid reacting substance (TBARS) concentrations, advanced oxidation protein products (AOPPs), Cu,Zn-superoxide dismutase (Cu,Zn-SOD), sialic acid (SA) were determined. Additionally, stress tolerances were tested. Mimetically aged group without tempol led to a significant decrease in tolerance to heat, cold, and starvation (P < 0.05), but tempol was used for these parameters. The Cu,Zn-SOD activity and SA concentrations were lower in both mimetically aged and tempol-administered Drosophila groups compared to control (P < 0.05), whereas there were no significantly difference between mimetically aged and tempol-administered groups. Mimetically aged group without tempol led to a significant increase in tissue TBARS and AOPPs concentrations (P < 0.05). Coadministration of tempol could prevent these alterations. Scavenging ROS using tempol also restores redox homeostasis in mimetically aged group. Tempol partly restores age-related oxidative injury and increases stress tolerance.
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Affiliation(s)
- Ugur Aksu
- Department of Biology, Science Faculty, Zoology Division, Istanbul University, Istanbul, Turkey
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Wu W, Wang X, Xiang Q, Meng X, Peng Y, Du N, Liu Z, Sun Q, Wang C, Liu X. Astaxanthin alleviates brain aging in rats by attenuating oxidative stress and increasing BDNF levels. Food Funct 2014; 5:158-66. [PMID: 24326685 DOI: 10.1039/c3fo60400d] [Citation(s) in RCA: 104] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Astaxanthin (AST) is a carotenoid pigment which possesses potent antioxidative, anti-inflammatory, and neuroprotective properties. The aim of this study was to investigate whether administration of AST had protective effects on D-galactose-induced brain aging in rats, and further examined its protective mechanisms. The results showed that AST treatment significantly restored the activities of glutathione peroxidase (GSH-PX) and superoxide dismutase (SOD), and increased glutathione (GSH) contents and total antioxidant capacity (T-AOC), but decreased malondialdehyde (MDA), protein carbonylation and 8-hydroxy-2- deoxyguanosine (8-OHdG) levels in the brains of aging rats. Furthermore, AST increased the ratio of Bcl-2/Bax, but decreased the expression of Cyclooxygenase-2 (COX-2) in the brains of aging rats. Additionally, AST ameliorated histopathological changes in the hippocampus and restored brain derived neurotrophic factor (BDNF) levels in both the brains and hippocampus of aging rats. These results suggested that AST could alleviate brain aging, which may be due to attenuating oxidative stress, ameliorating hippocampus damage, and upregulating BDNF expression.
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Affiliation(s)
- Wanqiang Wu
- College of Food Science and Engineering, Northwest A&F University, 28. Xi-nong Road, Yangling 712100, China.
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Cebe T, Atukeren P, Yanar K, Kuruç AI, Ozan T, Kunbaz A, Sitar ME, Mirmaroufizibandeh R, Aydın S, Çakatay U. Oxidation scrutiny in persuaded aging and chronological aging at systemic redox homeostasis level. Exp Gerontol 2014; 57:132-40. [PMID: 24879971 DOI: 10.1016/j.exger.2014.05.017] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2014] [Revised: 05/14/2014] [Accepted: 05/27/2014] [Indexed: 12/18/2022]
Abstract
BACKGROUND The effect of the natural aging process on systemic redox homeostasis is previously documented. However, none of the studies specify the effect of experimental aging on systemic redox homeostasis. The purpose of this study is to clarify the ambiguity raised in preliminary reports as to mimetic aging dependency of the type and magnitude of oxidative damage on constituents of plasma. METHODS In the current study, we investigated the interrelationship among various groups of the systemic oxidative damage markers such as protein oxidation products (protein carbonyl groups, protein hydroperoxides, advanced oxidation protein products, protein thiol groups), lipid peroxidation products (malondialdehyde, lipid hydroperoxides, conjugated dienes), glycoxidation adducts (advanced glycation end products), and antioxidant capacity (ferric reducing/antioxidant power, Cu,Zn-superoxide dismutase, total thiol, non-protein thiol). All these markers were measured in plasma of mimetically aged (MA) rats (5-month-old rats subjected to d-galactose-induced experimental aging), naturally aged (NA) rats (24-month-old), and their corresponding young controls (YC) (5months old). RESULTS AND CONCLUSIONS Our current results show that systemic oxidation markers of the MA group share significant similarities in terms of impaired redox homeostasis with the NA rats and may be considered as a reliable experimental aging model for intravascular aging. Additional methodological studies including d-galactose dosage and application time are warranted to clarify the potential involvement of all these systemic redox variations as mechanistic factors in the development of mimetic aging related intravascular deterioration. Reversing or preventing systemic oxidative damage in experimental and natural aging should therefore be considered the primary target for the development of effective therapeutic strategies to prevent or treat age-related vascular disorders.
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Affiliation(s)
- Tamer Cebe
- Cerrahpaşa Faculty of Medicine, Istanbul University, Turkey
| | - Pınar Atukeren
- Department of Medical Biochemistry, Cerrahpaşa Faculty of Medicine, Istanbul University, Turkey
| | - Karolin Yanar
- Department of Medical Biochemistry, Cerrahpaşa Faculty of Medicine, Istanbul University, Turkey
| | | | - Tuna Ozan
- Cerrahpaşa Faculty of Medicine, Istanbul University, Turkey
| | - Ahmad Kunbaz
- Cerrahpaşa Faculty of Medicine, Istanbul University, Turkey
| | - Mustafa Erinç Sitar
- Department of Medical Biochemistry, Cerrahpaşa Faculty of Medicine, Istanbul University, Turkey
| | | | - Seval Aydın
- Department of Medical Biochemistry, Cerrahpaşa Faculty of Medicine, Istanbul University, Turkey
| | - Ufuk Çakatay
- Department of Medical Biochemistry, Cerrahpaşa Faculty of Medicine, Istanbul University, Turkey.
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Saponins from Aralia taibaiensis attenuate D-galactose-induced aging in rats by activating FOXO3a and Nrf2 pathways. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2014; 2014:320513. [PMID: 24669284 PMCID: PMC3942195 DOI: 10.1155/2014/320513] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/26/2013] [Revised: 11/12/2013] [Accepted: 12/01/2013] [Indexed: 11/17/2022]
Abstract
Reactive oxygen species (ROS) are closely related to the aging process. In our previous studies, we found that the saponins from Aralia taibaiensis have potent antioxidant activity, suggesting the potential protective activity on the aging. However, the protective effect of the saponins and the possible underlying molecular mechanism remain unknown. In the present study, we employed a D-galactose-induced aging rat model to investigate the protective effect of the saponins. We found that D-galactose treatment induced obvious aging-related changes such as the decreased thymus and spleen coefficients, the increased advanced glycation end products (AGEs) level, senescence-associated β-galactosidase (SAβ-gal) activity, and malondialdehyde (MDA) level. Further results showed that Forkhead box O3a (FOXO3a), nuclear factor-erythroid 2-related factor 2 (Nrf2), and their targeted antioxidants such as superoxide dismutase 2 (SOD2), catalase (CAT), glutathione reductase (GR), glutathione (GSH), glutamate-cysteine ligase (GCL), and heme oxygenase 1 (HO-1) were all inhibited in the aging rats induced by D-galactose treatment. Saponins supplementation showed effective protection on these changes. These results demonstrate that saponins from Aralia taibaiensis attenuate the D-galactose-induced rat aging. By activating FOXO3a and Nrf2 pathways, saponins increase their downstream multiple antioxidants expression and function, at least in part contributing to the protection on the D-galactose-induced aging in rats.
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Ruan Q, Hu X, Ao H, Ma H, Gao Z, Liu F, Kong D, Bao Z, Yu Z. The Neurovascular Protective Effects of Huperzine A on D-Galactose-Induced Inflammatory Damage in the Rat Hippocampus. Gerontology 2014; 60:424-39. [DOI: 10.1159/000358235] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2013] [Accepted: 12/27/2013] [Indexed: 11/19/2022] Open
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da Silva ACA, Salomon TB, Behling CS, Putti J, Hackenhaar FS, Alabarse PVG, Schüller AK, Benfato MS. Oxidative stress in the kidney of reproductive female rats during aging. Biogerontology 2013; 14:411-22. [DOI: 10.1007/s10522-013-9440-9] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2013] [Accepted: 06/17/2013] [Indexed: 02/03/2023]
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Uzun D, Korkmaz GG, Sitar ME, Cebe T, Yanar K, Cakatay U, Aydın S. Oxidative damage parameters in renal tissues of aged and young rats based on gender. Clin Interv Aging 2013; 8:809-15. [PMID: 23847413 PMCID: PMC3700783 DOI: 10.2147/cia.s46188] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
PURPOSE Aging is characterized by a gradual functional decrease of all systems including the kidneys. Growing evidence links altered lipid protein redox-homeostasis with renal dysfunction. The effect of sexual dimorphism on the lipid protein redox-homeostasis mechanisms in the aging kidney is obscure. In the current study, we aimed to investigate redox homeostasis as it related to sexual dimorphism on protein oxidation and lipid peroxidation parameters, as protein carbonyl (PCO), total thiol (T-SH), advanced oxidation protein products (AOPP), malondialdehyde, glutathione (GSH), and superoxide dismutase (SOD) activity, as potential aging biomarkers, which may contribute to an analysis of the free radical theory of aging. MATERIALS AND METHODS The study was carried out with 16 naturally aged rats (24 months old; eight males and eight females) and their corresponding young rat groups as controls (6 months old; eight males and eight females). All of the aforementioned parameters (PCO, T-SH, AOPP, MDA, GSH, SOD) were measured manually instead of automated devices or ELISA kits. RESULTS PCO, AOPP, and malondialdehyde levels in aged rats were significantly higher in the older rat group than in the younger rat group, whereas SOD activities were significantly lower in old rats. T-SH levels were not significantly different in male groups; however, T-SH levels were lower in the aged female group than in the young female control group. In addition, GSH levels were significantly different between the aged rat group and the corresponding young control group for both genders. CONCLUSION With respect to PCO and AOPP, impaired redox homeostasis is substantially more prominent in males than females. The decrease of G-SH levels in male groups could be attributed to stabilizing the redox status of protein thiol groups by the depletion of the GSH groups. Considering the results, the renal tissue proteins and lipids in different genders may have different susceptibilities to oxidative damage.
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Affiliation(s)
- Duygu Uzun
- Istanbul University, Istanbul Faculty of Medicine, Istanbul, Turkey
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