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Navas-Enamorado C, Capo X, Galmes-Panades AM, Ortega-Moral A, Sánchez-Polo A, Masmiquel L, Torrens-Mas M, Navas P, Gonzalez-Freire M. The association of circulating bioenergetic metabolites with healthy human aging. Exp Gerontol 2024; 194:112488. [PMID: 38879093 DOI: 10.1016/j.exger.2024.112488] [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: 03/01/2024] [Revised: 04/25/2024] [Accepted: 06/10/2024] [Indexed: 06/18/2024]
Abstract
Aging is an inevitable and gradual decline in several biological functions. Mitochondrial dysfunction is one of the most important hallmarks of aging. In this context, alterations in metabolites associated with mitochondrial dysfunction may serve as a significant biomarker. This study aimed to investigate the existence of a relationship between the key metabolites involved in bioenergetics metabolism and aging. 53 volunteers ranged 20-85 years participated in the study. We tested the association between different tricarboxylic acid (TCA) cycle metabolites, fatty acid metabolism, and amino acid metabolism with age, sex, body composition, and proxy markers of aging such as walking speed, grip strength and chair test. We found that lactic acid negatively correlated with age while several fatty acid metabolites, such as azelaic, sebacic, and linoleic acids, showed positive correlations with age (p < 0.05). Sex-specific trends, such as glycerol, and dodecanoic acid, were also observed for certain metabolites. Furthermore, citric acid levels were found to have a significant association with physical function and body composition measures. Participants with higher citric acid levels displayed improved performance in physical tests and favorable body composition indices. Additionally, fumaric acid and adipic acid showed positive correlations with fat-free body mass, while sebacic acid was negatively associated with measures of fat mass. These findings underscore the importance of understanding the role of circulating bioenergetics metabolites with age, sex variations, and their potential implications in body composition and physical performance.
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Affiliation(s)
- C Navas-Enamorado
- Translational Research in Aging and Longevity (TRIAL) Group, Health Research Institute of the Balearic Islands (IdISBa), 07120 Palma de Mallorca, Spain
| | - X Capo
- Translational Research in Aging and Longevity (TRIAL) Group, Health Research Institute of the Balearic Islands (IdISBa), 07120 Palma de Mallorca, Spain
| | - A M Galmes-Panades
- Physical Activity and Sport Sciences Research Group (GICAFE), Institute for Educational Research and Innovation (IRIE), University of the Balearic Islands, 07120 Palma de Mallorca, Spain; Consorcio CIBER, M.P. Fisiopatología de la Obesidad y Nutrición (CIBERObn), Instituto de Salud Carlos III (ISCIII), 28029 Madrid, Spain
| | - A Ortega-Moral
- Translational Research in Aging and Longevity (TRIAL) Group, Health Research Institute of the Balearic Islands (IdISBa), 07120 Palma de Mallorca, Spain
| | - A Sánchez-Polo
- Translational Research in Aging and Longevity (TRIAL) Group, Health Research Institute of the Balearic Islands (IdISBa), 07120 Palma de Mallorca, Spain
| | - L Masmiquel
- Vascular and Metabolic Pathologies Group, Health Research Institute of the Balearic Islands (IdISBa), 07120 Palma de Mallorca, Spain
| | - M Torrens-Mas
- Translational Research in Aging and Longevity (TRIAL) Group, Health Research Institute of the Balearic Islands (IdISBa), 07120 Palma de Mallorca, Spain.
| | - P Navas
- Centro Andaluz de Biología del Desarrollo, Universidad Pablo de Olavide- Consejo superior de Investigaciones Científicas- Junta de Andalucía, Sevilla, Spain; CIBERER, Instituto de Salud Carlos III, Madrid, Spain.
| | - M Gonzalez-Freire
- Translational Research in Aging and Longevity (TRIAL) Group, Health Research Institute of the Balearic Islands (IdISBa), 07120 Palma de Mallorca, Spain; Faculty of Experimental Sciences, Universidad Francisco de Vitoria (UFV), Pozuelo de Alarcon, Madrid, Spain.
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2
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Jahanian S, Pareja-Cajiao M, Gransee HM, Sieck GC, Mantilla CB. Autophagy markers LC3 and p62 in aging lumbar motor neurons. Exp Gerontol 2024; 194:112483. [PMID: 38885913 PMCID: PMC11326290 DOI: 10.1016/j.exger.2024.112483] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2024] [Revised: 06/03/2024] [Accepted: 06/06/2024] [Indexed: 06/20/2024]
Abstract
Autophagy is a ubiquitous process through which damaged cytoplasmic structures are recycled and degraded within cells. Aging can affect autophagy regulation in different steps leading to the accumulation of damaged organelles and proteins, which can contribute to cell dysfunction and death. Motor neuron (MN) loss and sarcopenia are prominent features of neuromuscular aging. Previous studies on phrenic MNs showed increased levels of the autophagy proteins LC3 and p62 in 24 month compared to 6 month old mice, consistent with the onset of diaphragm muscle sarcopenia. In the present study, we hypothesized that aging leads to increased expression of the autophagy markers LC3 and p62 in single lumbar MNs. Expression of LC3 and p62 in lumbar MNs (spinal levels L1-L6) was assessed using immunofluorescence and confocal imaging of male and female mice at 6, 18 and 24 months of age, reflecting 100 %, 90 % and 75 % survival, respectively. A mixed linear model with animal as a random effect was used to compare relative LC3 and p62 expression in choline acetyl transferase-positive MNs across age groups. Expression of LC3 and p62 decreased in the white matter of the lumbar spinal cord with aging, with ~29 % decrease in LC3 and ~ 7 % decrease in p62 expression at 24 months of age compared to 6 months of age. There was no change in LC3 or p62 expression in the gray matter with age. LC3 expression in MNs relative to white matter increased significantly with age, with 150 % increase at 24 months of age compared to 6 months of age. Similarly, p62 expression in MNs relative to white matter increased significantly with age, with ~14 % increase at 24 months of age compared to 6 months of age. No effect of sex or MN pool was observed in LC3 and p62 expression in MNs. Overall, these data suggest autophagy impairment during elongation (increased LC3) and degradation (increased p62) phases with aging in lumbar MNs.
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Affiliation(s)
- Sepideh Jahanian
- Department of Anesthesiology & Perioperative Medicine, Mayo Clinic, 200 First Street SW, Rochester, MN 55905, USA
| | - Miguel Pareja-Cajiao
- Department of Anesthesiology & Perioperative Medicine, Mayo Clinic, 200 First Street SW, Rochester, MN 55905, USA
| | - Heather M Gransee
- Department of Anesthesiology & Perioperative Medicine, Mayo Clinic, 200 First Street SW, Rochester, MN 55905, USA
| | - Gary C Sieck
- Department of Anesthesiology & Perioperative Medicine, Mayo Clinic, 200 First Street SW, Rochester, MN 55905, USA; Department of Physiology & Biomedical Engineering, Mayo Clinic, 200 First Street SW, Rochester, MN 55905, USA
| | - Carlos B Mantilla
- Department of Anesthesiology & Perioperative Medicine, Mayo Clinic, 200 First Street SW, Rochester, MN 55905, USA; Department of Physiology & Biomedical Engineering, Mayo Clinic, 200 First Street SW, Rochester, MN 55905, USA.
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3
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Ma Y, Wang X, Li X, Chen X, Teng Z, Wang X, Yang J, Liu G. COP-22 Alleviates D-Galactose-Induced Brain Aging by Attenuating Oxidative Stress, Inflammation, and Apoptosis in Mice. Mol Neurobiol 2024; 61:6708-6720. [PMID: 38347285 PMCID: PMC11339142 DOI: 10.1007/s12035-024-03976-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2023] [Accepted: 01/18/2024] [Indexed: 08/22/2024]
Abstract
Aging is a natural and inevitable process of organisms. With the intensification of population aging, research on aging has become a hot topic of global attention. The most obvious manifestation of human aging is the aging of brain function, which has been linked to the development of neurodegenerative diseases. In this study, COP-22, a mono-carbonyl curcumin derivative, was evaluated for its anti-aging ability, especially its ability to resist brain aging induced by D-galactose (D-gal) in mice. For brain protection, COP-22 could resist D-gal-induced oxidative stress by increasing the activity of antioxidative defense enzymes and enhancing antioxidant capacity in the brain tissue; COP-22 could improve the dysfunction of the cholinergic system by decreasing the increased activity of acetylcholinesterase and increasing the reduced content of acetylcholine induced by D-gal; and COP-22 could protect nerve cells of the brain. Further, western blot was used to determine related proteins of the brain. We found that COP-22 could effectively protect against brain injury (SIRT1, p53, p21, and p16) by inhibiting oxidative stress (Nrf2 and HO-1), inflammation (IL-6 and TNF-α), and apoptosis (Bax and caspase-3) in D-gal-induced aging mice. Additionally, COP-22 demonstrated the ability to reduce oxidative stress in serum and liver caused by D-gal, as well as relieve the damages in the liver and kidney induced by D-gal. These results indicated that COP-22 had potential anti-aging activity and could be used in the therapy of aging and aging-associated diseases like Alzheimer disease.
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Affiliation(s)
- Yazhong Ma
- School of Pharmaceutical Sciences, Liaocheng University, 1 Hunan Street, Liaocheng, 252059, Shandong, China
| | - Xiaotong Wang
- School of Pharmaceutical Sciences, Liaocheng University, 1 Hunan Street, Liaocheng, 252059, Shandong, China
| | - Xin Li
- School of Pharmaceutical Sciences, Liaocheng University, 1 Hunan Street, Liaocheng, 252059, Shandong, China
| | - Xi Chen
- School of Pharmaceutical Sciences, Liaocheng University, 1 Hunan Street, Liaocheng, 252059, Shandong, China
| | - Zhifeng Teng
- School of Pharmaceutical Sciences, Liaocheng University, 1 Hunan Street, Liaocheng, 252059, Shandong, China
| | - Xuekun Wang
- School of Pharmaceutical Sciences, Liaocheng University, 1 Hunan Street, Liaocheng, 252059, Shandong, China.
| | - Jie Yang
- School of Pharmaceutical Sciences, Liaocheng University, 1 Hunan Street, Liaocheng, 252059, Shandong, China.
- Liaocheng Key Laboratory of Quality Control and Pharmacodynamic Evaluation of Ganoderma Lucidum, Liaocheng University, 1 Hunan Street, Liaocheng, 252059, Shandong, China.
| | - Guoyun Liu
- School of Pharmaceutical Sciences, Liaocheng University, 1 Hunan Street, Liaocheng, 252059, Shandong, China.
- Liaocheng Key Laboratory of Quality Control and Pharmacodynamic Evaluation of Ganoderma Lucidum, Liaocheng University, 1 Hunan Street, Liaocheng, 252059, Shandong, China.
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Boismal F, Peltier S, Ly Ka So S, Chevreux G, Blondel L, Serror K, Setterblab N, Zuelgaray E, Boccara D, Mimoun M, Guere C, Benssussan A, Dorr M, Beauchef G, Vie K, Michel L. Proteomic and secretomic comparison of young and aged dermal fibroblasts highlights cytoskeleton as a key component during aging. Aging (Albany NY) 2024; 16:206055. [PMID: 39197170 DOI: 10.18632/aging.206055] [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: 07/26/2023] [Accepted: 05/29/2024] [Indexed: 08/30/2024]
Abstract
Crucial for skin homeostasis, synthesis and degradation of extracellular matrix components are orchestrated by dermal fibroblasts. During aging, alterations of component expression, such as collagens and enzymes, lead to reduction of the mechanical cutaneous tension and defects of skin wound healing. The aim of this study was to better understand the molecular alterations underwent by fibroblasts during aging by comparing secretomic and proteomic signatures of fibroblasts from young (<35years) and aged (>55years) skin donors, in quiescence or TGF-stimulated conditions, using HLPC/MS. The comparison of the secretome from young and aged fibroblasts revealed that 16 proteins in resting condition, and 11 proteins after a 24h-lasting TGF-β1-treatment, were expressed in significant different ways between the two cell groups (fold change>2, p-value <0.05), with a 77% decrease in the number of secreted proteins in aged cells. Proteome comparison between young and aged fibroblasts identified a significant change of 63 proteins in resting condition, and 73 proteins in TGF-β1-stimulated condition, with a 67% increase in the number of proteins in aged fibroblasts. The majority of the differentially-expressed molecules belongs to the cytoskeleton-associated proteins and aging was characterized by an increase in Coronin 1C (CORO1C), and Filamin B (FLNB) expression in fibroblasts together with a decrease in Cofilin (CFL1), and Actin alpha cardiac muscle 1 (ACTC1) detection in aged cells, these proteins being involved in actin-filament polymerization and sharing co-activity in cell motility. Our present data reinforce knowledge about an age-related alteration in the synthesis of major proteins linked to the migratory and contractile functions of dermal human fibroblasts.
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Affiliation(s)
- Françoise Boismal
- INSERM UMR_S 976, Skin Research Center, Saint-Louis Hospital, Paris, France
- Paris University, Paris Cité, Paris, France
| | - Sandy Peltier
- INSERM UMR_S 976, Skin Research Center, Saint-Louis Hospital, Paris, France
| | - Sophie Ly Ka So
- INSERM UMR_S 976, Skin Research Center, Saint-Louis Hospital, Paris, France
| | | | - Loïse Blondel
- INSERM UMR_S 976, Skin Research Center, Saint-Louis Hospital, Paris, France
| | - Kévin Serror
- INSERM UMR_S 976, Skin Research Center, Saint-Louis Hospital, Paris, France
- Paris University, Paris Cité, Paris, France
- Department of Reconstructive and Plastic Surgery, Saint-Louis Hospital, Paris, France
| | | | | | - David Boccara
- INSERM UMR_S 976, Skin Research Center, Saint-Louis Hospital, Paris, France
- Paris University, Paris Cité, Paris, France
- Department of Reconstructive and Plastic Surgery, Saint-Louis Hospital, Paris, France
| | - Maurice Mimoun
- INSERM UMR_S 976, Skin Research Center, Saint-Louis Hospital, Paris, France
- Paris University, Paris Cité, Paris, France
- Department of Reconstructive and Plastic Surgery, Saint-Louis Hospital, Paris, France
| | | | - Armand Benssussan
- INSERM UMR_S 976, Skin Research Center, Saint-Louis Hospital, Paris, France
- Paris University, Paris Cité, Paris, France
| | | | | | | | - Laurence Michel
- INSERM UMR_S 976, Skin Research Center, Saint-Louis Hospital, Paris, France
- Paris University, Paris Cité, Paris, France
- Dermatology Department, Saint-Louis Hospital, Paris, France
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5
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Tamvaka N, Heckman MG, Johnson PW, Soto-Beasley AI, Walton RL, Koga S, Uitti RJ, Parfitt F, Graff-Radford MR, Wszolek ZK, Graff-Radford N, Valentino RR, Ross OA. Associations of mitochondrial genomic variation with successful neurological aging. Mitochondrion 2024:101948. [PMID: 39179138 DOI: 10.1016/j.mito.2024.101948] [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: 03/01/2024] [Revised: 07/25/2024] [Accepted: 08/18/2024] [Indexed: 08/26/2024]
Abstract
Mitochondrial health is an integral factor in aging, with mitochondrial dysfunction known to increase with age and contribute to the development of age-related neurodegenerative disorders. Additionally, the mitochondrial genome (mtDNA) has been shown to acquire potentially damaging somatic variation as part of the aging process, while mtDNA single nucleotide polymorphism (SNPs) have been shown to be both protective and detrimental for various neurodegenerative diseases. Yet, little is known about the involvement of mtDNA variation in longevity and successful neurological aging. In this study, we examined the association of mtDNA SNPs, in the form of mitochondrial haplogroups, with successful neurological aging in 1,405 unrelated neurologically healthy subjects. Although not quite significant after correcting for multiple testing (P < 0.0017 considered as significant), we detected a nominally significant association between the I haplogroup (N = 45, 3.2 %) and a younger age (β: -5.00, P = 0.006), indicating that this haplogroup is observed less frequently in older neurologically healthy individuals and may be associated with decreased survival. Replication of this finding in independent neurologically healthy cohorts will be imperative for shaping our understanding of the biological processes underlying healthy neurological aging.
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Affiliation(s)
- Nicole Tamvaka
- Department of Neuroscience, Mayo Clinic, Jacksonville, FL 32224, USA; Mayo Graduate School, Neuroscience Track, Mayo Clinic, Jacksonville, FL, USA
| | - Michael G Heckman
- Division of Biomedical Statistics and Informatics, Mayo Clinic, Jacksonville, FL 32224, USA
| | - Patrick W Johnson
- Division of Biomedical Statistics and Informatics, Mayo Clinic, Jacksonville, FL 32224, USA
| | | | - Ronald L Walton
- Department of Neuroscience, Mayo Clinic, Jacksonville, FL 32224, USA
| | - Shunsuke Koga
- Department of Neuroscience, Mayo Clinic, Jacksonville, FL 32224, USA
| | - Ryan J Uitti
- Department of Neurology, Mayo Clinic, Jacksonville, FL 32224, USA
| | - Francine Parfitt
- Department of Neurology, Mayo Clinic, Jacksonville, FL 32224, USA
| | | | | | | | | | - Owen A Ross
- Department of Neuroscience, Mayo Clinic, Jacksonville, FL 32224, USA; Mayo Graduate School, Neuroscience Track, Mayo Clinic, Jacksonville, FL, USA; Department of Clinical Genomics, Mayo Clinic, Jacksonville, FL 32224, USA; Department of Biology, University of North Florida, Jacksonville, FL 32224, USA; Department of Medicine, University College Dublin, Dublin, Ireland.
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6
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Varghese N, Grimm A, Cader MZ, Eckert A. From Young to Old: Mimicking Neuronal Aging in Directly Converted Neurons from Young Donors. Cells 2024; 13:1260. [PMID: 39120291 PMCID: PMC11311457 DOI: 10.3390/cells13151260] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2024] [Revised: 07/23/2024] [Accepted: 07/24/2024] [Indexed: 08/10/2024] Open
Abstract
A substantial challenge in human brain aging is to find a suitable model to mimic neuronal aging in vitro as accurately as possible. Using directly converted neurons (iNs) from human fibroblasts is considered a promising tool in human aging since it retains the aging-associated mitochondrial donor signature. Still, using iNs from aged donors can pose certain restrictions due to their lower reprogramming and conversion efficacy than those from younger individuals. To overcome these limitations, our study aimed to establish an in vitro neuronal aging model mirroring features of in vivo aging by acute exposure on young iNs to either human stress hormone cortisol or the mitochondrial stressor rotenone, considering stress as a trigger of in vivo aging. The impact of rotenone was evident in mitochondrial bioenergetic properties by showing aging-associated deficits in mitochondrial respiration, cellular ATP, and MMP and a rise in glycolysis, mitochondrial superoxide, and mitochondrial ROS; meanwhile, cortisol only partially induced an aging-associated mitochondrial dysfunction. To replicate the in vivo aging-associated mitochondrial dysfunctions, using rotenone, a mitochondrial complex I inhibitor, proved to be superior to the cortisol model. This work is the first to use stress on young iNs to recreate aging-related mitochondrial impairments.
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Affiliation(s)
- Nimmy Varghese
- Research Cluster Molecular and Cognitive Neurosciences, University of Basel, 4002 Basel, Switzerland; (N.V.); (A.G.)
- Neurobiology Lab for Brain Aging and Mental Health, University Psychiatric Clinics Basel, 4002 Basel, Switzerland
| | - Amandine Grimm
- Research Cluster Molecular and Cognitive Neurosciences, University of Basel, 4002 Basel, Switzerland; (N.V.); (A.G.)
- Neurobiology Lab for Brain Aging and Mental Health, University Psychiatric Clinics Basel, 4002 Basel, Switzerland
- Department of Biomedicine, University of Basel, 4055 Basel, Switzerland
| | - M. Zameel Cader
- Nuffield Department of Clinical Neuroscience, University of Oxford, Oxford OX3 9DS, UK;
| | - Anne Eckert
- Research Cluster Molecular and Cognitive Neurosciences, University of Basel, 4002 Basel, Switzerland; (N.V.); (A.G.)
- Neurobiology Lab for Brain Aging and Mental Health, University Psychiatric Clinics Basel, 4002 Basel, Switzerland
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7
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Pádua MS, Guil-Guerrero JL, Lopes PA. Behaviour Hallmarks in Alzheimer's Disease 5xFAD Mouse Model. Int J Mol Sci 2024; 25:6766. [PMID: 38928472 PMCID: PMC11204382 DOI: 10.3390/ijms25126766] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2024] [Revised: 06/14/2024] [Accepted: 06/16/2024] [Indexed: 06/28/2024] Open
Abstract
The 5xFAD transgenic mouse model widely used in Alzheimer's disease (AD) research recapitulates many AD-related phenotypes with a relatively early onset and aggressive age-dependent progression. Besides developing amyloid peptide deposits alongside neuroinflammation by the age of 2 months, as well as exhibiting neuronal decline by the age of 4 months that intensifies by the age of 9 months, these mice manifest a broad spectrum of behavioural impairments. In this review, we present the extensive repertoire of behavioural dysfunctions in 5xFAD mice, organised into four categories: motor skills, sensory function, learning and memory abilities, and neuropsychiatric-like symptoms. The motor problems, associated with agility and reflex movements, as well as balance and coordination, and skeletal muscle function, typically arise by the time mice reach 9 months of age. The sensory function (such as taste, smell, hearing, and vision) starts to deteriorate when amyloid peptide buildups and neuroinflammation spread into related anatomical structures. The cognitive functions, encompassing learning and memory abilities, such as visual recognition, associative, spatial working, reference learning, and memory show signs of decline from 4 to 6 months of age. Concerning neuropsychiatric-like symptoms, comprising apathy, anxiety and depression, and the willingness for exploratory behaviour, it is believed that motivational changes emerge by approximately 6 months of age. Unfortunately, numerous studies from different laboratories are often contradictory on the conclusions drawn and the identification of onset age, making preclinical studies in rodent models not easily translatable to humans. This variability is likely due to a range of factors associated with animals themselves, housing and husbandry conditions, and experimental settings. In the forthcoming studies, greater clarity in experimental details when conducting behavioural testing in 5xFAD transgenic mice could minimise the inconsistencies and could ensure the reliability and the reproducibility of the results.
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Affiliation(s)
- Mafalda Soares Pádua
- CIISA—Centro de Investigação Interdisciplinar em Sanidade Animal, Faculdade de Medicina Veterinária, Universidade de Lisboa, 1300-477 Lisboa, Portugal;
- Laboratório Associado para Ciência Animal e Veterinária (AL4AnimalS), Faculdade de Medicina Veterinária, Universidade de Lisboa, 1300-477 Lisboa, Portugal
| | - José L. Guil-Guerrero
- Departamento de Tecnología de Alimentos, Universidad de Almería, 04120 Almería, Spain;
| | - Paula Alexandra Lopes
- CIISA—Centro de Investigação Interdisciplinar em Sanidade Animal, Faculdade de Medicina Veterinária, Universidade de Lisboa, 1300-477 Lisboa, Portugal;
- Laboratório Associado para Ciência Animal e Veterinária (AL4AnimalS), Faculdade de Medicina Veterinária, Universidade de Lisboa, 1300-477 Lisboa, Portugal
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Mahdi I, Imbimbo P, Annaz H, Bakrim WB, Sahri N, Alaoui A, Monti DM, Sobeh M. Profiling of Petroselinum sativum (mill.) fuss phytoconstituents and assessment of their biocompatibility, antioxidant, anti-aging, wound healing, and antibacterial activities. Front Nutr 2024; 11:1338482. [PMID: 38505264 PMCID: PMC10948610 DOI: 10.3389/fnut.2024.1338482] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2023] [Accepted: 02/21/2024] [Indexed: 03/21/2024] Open
Abstract
Petroselinum sativum, known as parsley, is a fragrant herb that possesses a rich heritage of utilization in traditional medicinal practices. In this study, we annotated the phytocontents of the aqueous and ethanolic extracts of P. sativum and investigated their antioxidant, cytoprotective, antiaging, wound healing, and antibacterial activities. LC-MS/MS analysis of both extracts revealed the presence of 47 compounds belonging to diverse groups including organic acids, phenolic acids, and flavonoids. By MTT assay, the extracts were fully biocompatible on immortalized human keratinocytes (HaCaT) while they inhibited intracellular ROS formation (DCFDA assay) and prevented GSH depletion (DTNB assay) upon UVA exposure. In addition, the extracts were potent in inhibiting the in vitro activities of skin-related enzymes mainly elastase, tyrosinase, collagenase and hyaluronidase. Using the scratch assay, P. sativum aqueous extract significantly enhanced wound closure when compared to untreated HaCaT cells. Moreover, both extracts inhibited Pseudomonas aeruginosa's growth, reduced biofilm formation, and impaired the swimming and swarming motilities. Also, the aqueous extract was able to inhibit the production of bacterial pigments on plates. These findings strongly suggest the usefulness of P. sativum as a source of phytochemicals suitable for dermo-cosmeceutical applications.
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Affiliation(s)
- Ismail Mahdi
- AgroBioSciences Program, College of Agriculture and Environmental Sciences, University Mohammed VI Polytechnic, Ben Guerir, Morocco
| | - Paola Imbimbo
- Department of Chemical Sciences, University of Napoli Federico II, Complesso Universitario Monte Sant’Angelo, Napoli, Italy
| | - Hassan Annaz
- AgroBioSciences Program, College of Agriculture and Environmental Sciences, University Mohammed VI Polytechnic, Ben Guerir, Morocco
| | - Widad Ben Bakrim
- AgroBioSciences Program, College of Agriculture and Environmental Sciences, University Mohammed VI Polytechnic, Ben Guerir, Morocco
| | - Nihad Sahri
- AgroBioSciences Program, College of Agriculture and Environmental Sciences, University Mohammed VI Polytechnic, Ben Guerir, Morocco
- Physio-Chemical Laboratory of Inorganic and Organic Materials (LPCMIO), Materials Science Center (MSC), Ecole Normale Supérieure, Mohammed V University, Rabat, Morocco
| | - Asmae Alaoui
- Physio-Chemical Laboratory of Inorganic and Organic Materials (LPCMIO), Materials Science Center (MSC), Ecole Normale Supérieure, Mohammed V University, Rabat, Morocco
| | - Daria Maria Monti
- Department of Chemical Sciences, University of Napoli Federico II, Complesso Universitario Monte Sant’Angelo, Napoli, Italy
| | - Mansour Sobeh
- AgroBioSciences Program, College of Agriculture and Environmental Sciences, University Mohammed VI Polytechnic, Ben Guerir, Morocco
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9
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Pádua MS, Guil-Guerrero JL, Prates JAM, Lopes PA. Insights on the Use of Transgenic Mice Models in Alzheimer's Disease Research. Int J Mol Sci 2024; 25:2805. [PMID: 38474051 DOI: 10.3390/ijms25052805] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2024] [Revised: 02/26/2024] [Accepted: 02/27/2024] [Indexed: 03/14/2024] Open
Abstract
Alzheimer's disease (AD), the leading cause of dementia, presents a significant global health challenge with no known cure to date. Central to our understanding of AD pathogenesis is the β-amyloid cascade hypothesis, which underlies drug research and discovery efforts. Despite extensive studies, no animal models of AD have completely validated this hypothesis. Effective AD models are essential for accurately replicating key pathological features of the disease, notably the formation of β-amyloid plaques and neurofibrillary tangles. These pathological markers are primarily driven by mutations in the amyloid precursor protein (APP) and presenilin 1 (PS1) genes in familial AD (FAD) and by tau protein mutations for the tangle pathology. Transgenic mice models have been instrumental in AD research, heavily relying on the overexpression of mutated APP genes to simulate disease conditions. However, these models do not entirely replicate the human condition of AD. This review aims to provide a comprehensive evaluation of the historical and ongoing research efforts in AD, particularly through the use of transgenic mice models. It is focused on the benefits gathered from these transgenic mice models in understanding β-amyloid toxicity and the broader biological underpinnings of AD. Additionally, the review critically assesses the application of these models in the preclinical testing of new therapeutic interventions, highlighting the gap between animal models and human clinical realities. This analysis underscores the need for refinement in AD research methodologies to bridge this gap and enhance the translational value of preclinical studies.
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Affiliation(s)
- Mafalda Soares Pádua
- CIISA-Centro de Investigação Interdisciplinar em Sanidade Animal, Faculdade de Medicina Veterinária, Universidade de Lisboa, 1300-477 Lisbon, Portugal
- Laboratório Associado para Ciência Animal e Veterinária (AL4AnimalS), Faculdade de Medicina Veterinária, Universidade de Lisboa, 1300-477 Lisbon, Portugal
| | - José L Guil-Guerrero
- Departamento de Tecnología de Alimentos, Universidad de Almería, 04120 Almería, Spain
| | - José A M Prates
- CIISA-Centro de Investigação Interdisciplinar em Sanidade Animal, Faculdade de Medicina Veterinária, Universidade de Lisboa, 1300-477 Lisbon, Portugal
- Laboratório Associado para Ciência Animal e Veterinária (AL4AnimalS), Faculdade de Medicina Veterinária, Universidade de Lisboa, 1300-477 Lisbon, Portugal
| | - Paula Alexandra Lopes
- CIISA-Centro de Investigação Interdisciplinar em Sanidade Animal, Faculdade de Medicina Veterinária, Universidade de Lisboa, 1300-477 Lisbon, Portugal
- Laboratório Associado para Ciência Animal e Veterinária (AL4AnimalS), Faculdade de Medicina Veterinária, Universidade de Lisboa, 1300-477 Lisbon, Portugal
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10
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Miller BC, Mathai M, Yadav H, Jain S. Geroprotective potential of microbiome modulators in the Caenorhabditis elegans model. GeroScience 2024; 46:129-151. [PMID: 37561384 PMCID: PMC10828408 DOI: 10.1007/s11357-023-00901-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2023] [Accepted: 08/01/2023] [Indexed: 08/11/2023] Open
Abstract
Aging is associated with cellular and physiological changes, which significantly reduce the quality of life and increase the risk for disease. Geroprotectors improve lifespan and slow the progression of detrimental aging-related changes such as immune system senescence, mitochondrial dysfunction, and dysregulated nutrient sensing and metabolism. Emerging evidence suggests that gut microbiota dysbiosis is a hallmark of aging-related diseases and microbiome modulators, such as probiotics (live bacteria) or postbiotics (non-viable bacteria/bacterial byproducts) may be promising geroprotectors. However, because they are strain-specific, the geroprotective effects of probiotics and postbiotics remain poorly understood and understudied. Drosophila melanogaster, Caenorhabditis elegans, and rodents are well-validated preclinical models for studying lifespan and the role of probiotics and/or postbiotics, but each have their limitations, including cost and their translation to human aging biology. C. elegans is an excellent model for large-scale screening to determine the geroprotective potential of drugs or probiotics/postbiotics due to its short lifecycle, easy maintenance, low cost, and homology to humans. The purpose of this article is to review the geroprotective effects of microbiome modulators and their future scope, using C. elegans as a model. The proposed geroprotective mechanisms of these probiotics and postbiotics include delaying immune system senescence, preventing or reducing mitochondrial dysfunction, and regulating food intake (dietary restriction) and metabolism. More studies are warranted to understand the geroprotective potential of probiotics and postbiotics, as well as other microbiome modulators, like prebiotics and fermented foods, and use them to develop effective therapeutics to extend lifespan and reduce the risk of debilitating aging-related diseases.
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Affiliation(s)
- Brandi C Miller
- USF Center for Microbiome Research, Microbiomes Institute, University of South Florida, 12901 Bruce B Downs Blvd, MDC 78, Tampa, FL, 33612, USA
- Department of Neurosurgery and Brain Repair, University of South Florida, Tampa, FL, USA
| | - Megha Mathai
- USF Center for Microbiome Research, Microbiomes Institute, University of South Florida, 12901 Bruce B Downs Blvd, MDC 78, Tampa, FL, 33612, USA
- Department of Neurosurgery and Brain Repair, University of South Florida, Tampa, FL, USA
| | - Hariom Yadav
- USF Center for Microbiome Research, Microbiomes Institute, University of South Florida, 12901 Bruce B Downs Blvd, MDC 78, Tampa, FL, 33612, USA
- Department of Neurosurgery and Brain Repair, University of South Florida, Tampa, FL, USA
| | - Shalini Jain
- USF Center for Microbiome Research, Microbiomes Institute, University of South Florida, 12901 Bruce B Downs Blvd, MDC 78, Tampa, FL, 33612, USA.
- Department of Neurosurgery and Brain Repair, University of South Florida, Tampa, FL, USA.
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11
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Gilad N, Mohanam MP, Darlyuk-Saadon I, Heng CKM, Plaschkes I, Benyamini H, Berezhnoy NV, Engelberg D. Asynchronous Pattern of MAPKs' Activity during Aging of Different Tissues and of Distinct Types of Skeletal Muscle. Int J Mol Sci 2024; 25:1713. [PMID: 38338990 PMCID: PMC10855984 DOI: 10.3390/ijms25031713] [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: 11/28/2023] [Revised: 01/17/2024] [Accepted: 01/25/2024] [Indexed: 02/12/2024] Open
Abstract
The MAPK p38α was proposed to be a prominent promoter of skeletal muscle aging. The skeletal muscle tissue is composed of various muscle types, and it is not known if p38α is associated with aging in all of them. It is also not known if p38α is associated with aging of other tissues. JNK and ERK were also proposed to be associated with aging of several tissues. Nevertheless, the pattern of p38α, JNK, and ERK activity during aging was not documented. Here, we documented the levels of phosphorylated/active p38α, Erk1/2, and JNKs in several organs as well as the soleus, tibialis anterior, quadriceps, gastrocnemius, and EDL muscles of 1-, 3-, 6-, 13-, 18-, and 24-month-old mice. We report that in most tissues and skeletal muscles, the MAPKs' activity does not change in the course of aging. In most tissues and muscles, p38α is in fact active at younger ages. The quadriceps and the lungs are exceptions, where p38α is significantly active only in mice 13 months old or older. Curiously, levels of active JNK and ERKs are also elevated in aged lungs and quadriceps. RNA-seq analysis of the quadriceps during aging revealed downregulation of proteins related to the extra-cellular matrix (ECM) and ERK signaling. A panel of mRNAs encoding cell cycle inhibitors and senescence-associated proteins, considered to be aging markers, was not found to be elevated. It seems that the pattern of MAPKs' activation in aging, as well as expression of known 'aging' components, are tissue- and muscle type-specific, supporting a notion that the process of aging is tissue- and even cell-specific.
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Affiliation(s)
- Nechama Gilad
- Department of Biological Chemistry, The Institute of Life Science, The Hebrew University of Jerusalem, Jerusalem 91904, Israel;
- Singapore-HUJ Alliance for Research and Enterprise, Mechanisms of Liver Inflammatory Diseases Program, National University of Singapore, Singapore 138602, Singapore
| | - Manju Payini Mohanam
- Singapore-HUJ Alliance for Research and Enterprise, Mechanisms of Liver Inflammatory Diseases Program, National University of Singapore, Singapore 138602, Singapore
- Department of Microbiology and Immunology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117456, Singapore
| | - Ilona Darlyuk-Saadon
- Singapore-HUJ Alliance for Research and Enterprise, Mechanisms of Liver Inflammatory Diseases Program, National University of Singapore, Singapore 138602, Singapore
| | - C. K. Matthew Heng
- Singapore-HUJ Alliance for Research and Enterprise, Mechanisms of Liver Inflammatory Diseases Program, National University of Singapore, Singapore 138602, Singapore
- Department of Microbiology and Immunology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117456, Singapore
| | - Inbar Plaschkes
- Info-CORE, Bioinformatics Unit of the I-CORE, The Hebrew University of Jerusalem, Jerusalem 91120, Israel
| | - Hadar Benyamini
- Info-CORE, Bioinformatics Unit of the I-CORE, The Hebrew University of Jerusalem, Jerusalem 91120, Israel
| | - Nikolay V. Berezhnoy
- Singapore-HUJ Alliance for Research and Enterprise, Mechanisms of Liver Inflammatory Diseases Program, National University of Singapore, Singapore 138602, Singapore
- Department of Microbiology and Immunology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117456, Singapore
| | - David Engelberg
- Department of Biological Chemistry, The Institute of Life Science, The Hebrew University of Jerusalem, Jerusalem 91904, Israel;
- Singapore-HUJ Alliance for Research and Enterprise, Mechanisms of Liver Inflammatory Diseases Program, National University of Singapore, Singapore 138602, Singapore
- Department of Microbiology and Immunology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117456, Singapore
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12
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Urman MA, John NS, Jung T, Lee C. Aging disrupts spatiotemporal regulation of germline stem cells and niche integrity. Biol Open 2024; 13:bio060261. [PMID: 38156664 PMCID: PMC10810562 DOI: 10.1242/bio.060261] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2023] [Accepted: 12/13/2023] [Indexed: 01/03/2024] Open
Abstract
A major factor driving stem cell decline is stem cell niche aging, but its molecular mechanism remains elusive. We use the Caenorhabditis elegans distal tip cell (DTC), the mesenchymal niche that employs Notch signaling to regulate germline stem cells (GSCs), as an in vivo niche aging model and delineate the molecular details of the DTC/niche aging process. Here, we demonstrate that a drastic decrease in C. elegans germline fecundity, which begins even in early adulthood, is mainly due to an age-induced disruption in spatial regulation of Notch-dependent transcription in the germline combined with a moderate reduction in Notch transcription at both tissue and cellular levels. Consequently, the Notch-responsive GSC pool shifts from the distal end of the gonad to a more proximal region, disrupting the distal-to-proximal germline polarity. We find that this GSC pool shift is due to a dislocation of the DTC/niche nucleus, which is associated with age-induced changes in the structure and morphology of the DTC/niche. Our findings reveal a critical link between physiological changes in the aging niche, their consequences in stem cell regulation, and germline tissue functions.
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Affiliation(s)
- Michelle A. Urman
- Department of Biological Sciences, University at Albany, State University of New York, Albany, NY, 12222, USA
- The RNA Institute, University at Albany, State University of New York, Albany, NY, 12222, USA
| | - Nimmy S. John
- Department of Biological Sciences, University at Albany, State University of New York, Albany, NY, 12222, USA
- The RNA Institute, University at Albany, State University of New York, Albany, NY, 12222, USA
| | - Tyler Jung
- Department of Biological Sciences, University at Albany, State University of New York, Albany, NY, 12222, USA
| | - ChangHwan Lee
- Department of Biological Sciences, University at Albany, State University of New York, Albany, NY, 12222, USA
- The RNA Institute, University at Albany, State University of New York, Albany, NY, 12222, USA
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13
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Raghuram GV, Tripathy BK, Avadhani K, Shabrish S, Khare NK, Lopes R, Pal K, Mittra I. Cell-free chromatin particles released from dying cells inflict mitochondrial damage and ROS production in living cells. Cell Death Discov 2024; 10:30. [PMID: 38225229 PMCID: PMC10789803 DOI: 10.1038/s41420-023-01728-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2023] [Revised: 11/06/2023] [Accepted: 11/16/2023] [Indexed: 01/17/2024] Open
Abstract
Mitochondrial damage and the resultant oxidative stress are associated with neurodegenerative diseases, ageing, and cancer. However, the triggers of mitochondrial damage remain unclear. We previously reported that cell-free chromatin particles (cfChPs) released from the billions of cells that die in the body every day can readily enter healthy cells and damage their DNA. Here, we show that cfChPs isolated from the sera of healthy individuals, when applied to NIH3T3 mouse fibroblast cells, cause physical damage to mitochondrial DNA (mtDNA). cfChPs also induce ultrastructural changes, increase mitochondrial mass, alter mitochondrial shape, upregulate mitochondrial outer membrane protein translocase of the outer membrane 20, and change mitochondrial membrane potential. Furthermore, a marked increase was observed in mitochondrial superoxide (ROS) production, as detected by MitoSOX Red, and intracellular superoxide dismutase-1 activation. ROS production was also activated when a conditioned medium containing cfChPs released from hypoxia-induced dying NIH3T3 cells was applied to healthy NIH3T3 cells. ROS activation was significantly reduced when the conditioned medium was pre-treated with three different cfChP-deactivating agents: anti-histone antibody-complexed nanoparticles, DNase I, and the novel pro-oxidant combination of the nutraceuticals resveratrol and copper. Given that 1 × 109-1 × 1012 cells die in the body every day, we hypothesise that cfChPs from dying cells are the major physiological triggers for mtDNA damage and ROS production. Deactivation of cfChPs may provide a novel therapeutic approach to retard ageing and associated degenerative conditions linked to oxidative stress.
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Affiliation(s)
- Gorantla V Raghuram
- Translational Research Laboratory Advanced Centre for Treatment, Research and Education in Cancer, Tata Memorial Centre, Kharghar, Navi Mumbai, 410210, India
- Homi Bhabha National Institute, Anushakti Nagar, Mumbai, 400094, India
| | - Bhabesh Kumar Tripathy
- Translational Research Laboratory Advanced Centre for Treatment, Research and Education in Cancer, Tata Memorial Centre, Kharghar, Navi Mumbai, 410210, India
- Homi Bhabha National Institute, Anushakti Nagar, Mumbai, 400094, India
| | - Kartikeya Avadhani
- Translational Research Laboratory Advanced Centre for Treatment, Research and Education in Cancer, Tata Memorial Centre, Kharghar, Navi Mumbai, 410210, India
- Homi Bhabha National Institute, Anushakti Nagar, Mumbai, 400094, India
| | - Snehal Shabrish
- Translational Research Laboratory Advanced Centre for Treatment, Research and Education in Cancer, Tata Memorial Centre, Kharghar, Navi Mumbai, 410210, India
- Homi Bhabha National Institute, Anushakti Nagar, Mumbai, 400094, India
| | - Naveen Kumar Khare
- Translational Research Laboratory Advanced Centre for Treatment, Research and Education in Cancer, Tata Memorial Centre, Kharghar, Navi Mumbai, 410210, India
- Homi Bhabha National Institute, Anushakti Nagar, Mumbai, 400094, India
| | - Relestina Lopes
- Translational Research Laboratory Advanced Centre for Treatment, Research and Education in Cancer, Tata Memorial Centre, Kharghar, Navi Mumbai, 410210, India
- Homi Bhabha National Institute, Anushakti Nagar, Mumbai, 400094, India
| | - Kavita Pal
- Translational Research Laboratory Advanced Centre for Treatment, Research and Education in Cancer, Tata Memorial Centre, Kharghar, Navi Mumbai, 410210, India
- Homi Bhabha National Institute, Anushakti Nagar, Mumbai, 400094, India
| | - Indraneel Mittra
- Translational Research Laboratory Advanced Centre for Treatment, Research and Education in Cancer, Tata Memorial Centre, Kharghar, Navi Mumbai, 410210, India.
- Homi Bhabha National Institute, Anushakti Nagar, Mumbai, 400094, India.
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14
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Li Q, Wang L, Tang C, Wang X, Yu Z, Ping X, Ding M, Zheng L. Adipose Tissue Exosome circ_sxc Mediates the Modulatory of Adiposomes on Brain Aging by Inhibiting Brain dme-miR-87-3p. Mol Neurobiol 2024; 61:224-238. [PMID: 37597108 DOI: 10.1007/s12035-023-03516-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2023] [Accepted: 07/14/2023] [Indexed: 08/21/2023]
Abstract
Aging of the brain usually leads to the decline of neurological processes and is a major risk factor for various neurodegenerative diseases, including sleep disturbances and cognitive decline. Adipose tissue exosomes, as adipocyte-derived vesicles, may mediate the regulatory processes of adipose tissue on other organs, including the brain; however, the regulatory mechanisms remain unclear. We analyzed the sleep-wake behavior of young (10 days) and old (40 days) Drosophila and found that older Drosophila showed increased sleep fragmentation, which is similar to mammalian aging characteristics. To investigate the cross-tissue regulatory mechanisms of adiposity on brain aging, we extracted 10-day and 40-day Drosophila adipose tissue exosomes and identified circRNAs with age-dependent expression differences by RNA-seq and differential analysis. Furthermore, by combining data from 3 datasets of the GEO database (GSE130158, GSE24992, and GSE184559), circ_sxc that was significantly downregulated with age was finally screened out. Moreover, dme-miR-87-3p, a conserved target of circ_sxc, accumulates in the brain with age and exhibits inhibitory effects in predicted binding relationships with neuroreceptor ligand genes. In summary, the current study showed that the Drosophila brain could obtain circ_sxc by uptake of adipose tissue exosomes which crossed the blood-brain barrier. And circ_sxc suppressed brain miR-87-3p expression through sponge adsorption, which in turn regulated the expression of neurological receptor ligand proteins (5-HT1B, GABA-B-R1, Rdl, Rh7, qvr, NaCP60E) and ensured brain neuronal synaptic signaling normal function of synaptic signaling. However, with aging, this regulatory mechanism is dysregulated by the downregulation of the adipose exosome circ_sxc, which contributes to the brain exhibiting sleep disturbances and other "aging" features.
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Affiliation(s)
- Qiufang Li
- Key Laboratory of Physical Fitness and Exercise Rehabilitation of Hunan Province, Hunan Normal University, Changsha, Hunan, China
| | - Lingxiao Wang
- The Center for Heart Development, State Key Laboratory of Development Biology of Freshwater Fish, College of Life Sciences, Hunan Normal University, Changsha, Hunan, China.
| | - Chao Tang
- Key Laboratory of Physical Fitness and Exercise Rehabilitation of Hunan Province, Hunan Normal University, Changsha, Hunan, China
| | - Xiaoya Wang
- Key Laboratory of Physical Fitness and Exercise Rehabilitation of Hunan Province, Hunan Normal University, Changsha, Hunan, China
| | - Zhengwen Yu
- Key Laboratory of Physical Fitness and Exercise Rehabilitation of Hunan Province, Hunan Normal University, Changsha, Hunan, China
| | - Xu Ping
- Key Laboratory of Physical Fitness and Exercise Rehabilitation of Hunan Province, Hunan Normal University, Changsha, Hunan, China
| | - Meng Ding
- Key Laboratory of Physical Fitness and Exercise Rehabilitation of Hunan Province, Hunan Normal University, Changsha, Hunan, China
| | - Lan Zheng
- Key Laboratory of Physical Fitness and Exercise Rehabilitation of Hunan Province, Hunan Normal University, Changsha, Hunan, China.
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15
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Kumar S, Srivastava VK, Kaushik S, Saxena J, Jyoti A. Free Radicals, Mitochondrial Dysfunction and Sepsis-induced Organ Dysfunction: A Mechanistic Insight. Curr Pharm Des 2024; 30:161-168. [PMID: 38243948 DOI: 10.2174/0113816128279655231228055842] [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: 09/30/2023] [Revised: 12/06/2023] [Accepted: 12/14/2023] [Indexed: 01/22/2024]
Abstract
Sepsis is a complex clinical condition and a leading cause of death worldwide. During Sepsis, there is a derailment in the host response to infection, which can progress to severe sepsis and multiple organ dysfunction or failure, which leads to death. Free radicals, including reactive oxygen species (ROS) generated predominantly in mitochondria, are one of the key players in impairing normal organ function in sepsis. ROS contributing to oxidative stress has been reported to be the main culprit in the injury of the lung, heart, liver, kidney, gastrointestinal, and other organs. Here in the present review, we describe the generation, and essential properties of various types of ROS, their effect on macromolecules, and their role in mitochondrial dysfunction. Furthermore, the mechanism involved in the ROS-mediated pathogenesis of sepsis-induced organ dysfunction has also been discussed.
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Affiliation(s)
- Sanni Kumar
- Department of Biotechnology Engineering and Food Technology, University Institute of Engineering, Chandigarh University, Mohali, Punjab 140413, India
| | | | - Sanket Kaushik
- Amity Institute of Biotechnology, Amity University, Rajasthan, Jaipur 303007, India
| | - Juhi Saxena
- Department of Biotechnology, Parul Institute of Technology, Parul University, Vadodara, Gujarat 391760, India
| | - Anupam Jyoti
- Department of Life Sciences, Parul Institute of Applied Sciences, Parul University, Vadodara, Gujarat 391760, India
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16
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Boen CE, Yang YC, Aiello AE, Dennis AC, Harris KM, Kwon D, Belsky DW. Patterns and Life Course Determinants of Black-White Disparities in Biological Age Acceleration: A Decomposition Analysis. Demography 2023; 60:1815-1841. [PMID: 37982570 PMCID: PMC10842850 DOI: 10.1215/00703370-11057546] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2023]
Abstract
Despite the prominence of the weathering hypothesis as a mechanism underlying racialized inequities in morbidity and mortality, the life course social and economic determinants of Black-White disparities in biological aging remain inadequately understood. This study uses data from the Health and Retirement Study (n = 6,782), multivariable regression, and Kitagawa-Blinder-Oaxaca decomposition to assess Black-White disparities across three measures of biological aging: PhenoAge, Klemera-Doubal biological age, and homeostatic dysregulation. It also examines the contributions of racial differences in life course socioeconomic and stress exposures and vulnerability to those exposures to Black-White disparities in biological aging. Across the outcomes, Black individuals exhibited accelerated biological aging relative to White individuals. Decomposition analyses showed that racial differences in life course socioeconomic exposures accounted for roughly 27% to 55% of the racial disparities across the biological aging measures, and racial disparities in psychosocial stress exposure explained 7% to 11%. We found less evidence that heterogeneity in the associations between social exposures and biological aging by race contributed substantially to Black-White disparities in biological aging. Our findings offer new evidence of the role of life course social exposures in generating disparities in biological aging, with implications for understanding age patterns of morbidity and mortality risks.
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Affiliation(s)
- Courtney E Boen
- Department of Sociology and Population Studies Center, University of Pennsylvania, Philadelphia, PA, USA
| | - Y Claire Yang
- Department of Sociology and Carolina Population Center, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Allison E Aiello
- Robert N. Butler Columbia Aging Center, Columbia University, New York, NY, USA
| | - Alexis C Dennis
- Department of Sociology, McGill University, Montreal, Quebec, Canada
| | - Kathleen Mullan Harris
- Department of Sociology and Carolina Population Center, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Dayoon Kwon
- Fielding School of Public Health, University of California at Los Angeles, Los Angeles, CA, USA
| | - Daniel W Belsky
- Columbia Mailman School of Public Health and Robert N. Butler Columbia Aging Center, Columbia University, New York, NY, USA
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17
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Jo MJ, Lee JK, Kim JE, Ko GJ. Molecular Mechanisms Associated with Aging Kidneys and Future Perspectives. Int J Mol Sci 2023; 24:16912. [PMID: 38069234 PMCID: PMC10707287 DOI: 10.3390/ijms242316912] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2023] [Revised: 11/24/2023] [Accepted: 11/27/2023] [Indexed: 12/18/2023] Open
Abstract
The rapid growth of the elderly population is making the need for extensive and advanced information about age-related organ dysfunction a crucial research area. The kidney is one of the organs most affected by aging. Aged kidneys undergo functional decline, characterized by a reduction in kidney size, decreased glomerular filtration rate, alterations in renal blood flow, and increased inflammation and fibrosis. This review offers a foundation for understanding the functional and molecular mechanisms of aging kidneys and for selecting identifying appropriate targets for future treatments of age-related kidney issues.
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Affiliation(s)
- Min-Jee Jo
- Department of Internal Medicine, Korea University College of Medicine, Korea University Guro Hospital, Seoul 08308, Republic of Korea; (M.-J.J.); (J.-K.L.); (J.-E.K.)
- Institute of Convergence New Drug Development, Korea University College of Medicine, Seoul 08308, Republic of Korea
| | - Joo-Kyung Lee
- Department of Internal Medicine, Korea University College of Medicine, Korea University Guro Hospital, Seoul 08308, Republic of Korea; (M.-J.J.); (J.-K.L.); (J.-E.K.)
| | - Ji-Eun Kim
- Department of Internal Medicine, Korea University College of Medicine, Korea University Guro Hospital, Seoul 08308, Republic of Korea; (M.-J.J.); (J.-K.L.); (J.-E.K.)
| | - Gang-Jee Ko
- Department of Internal Medicine, Korea University College of Medicine, Korea University Guro Hospital, Seoul 08308, Republic of Korea; (M.-J.J.); (J.-K.L.); (J.-E.K.)
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18
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Corrales P, Martin‐Taboada M, Vivas‐García Y, Torres L, Ramirez‐Jimenez L, Lopez Y, Horrillo D, Vila‐Bedmar R, Barber‐Cano E, Izquierdo‐Lahuerta A, Peña‐Chilet M, Martínez C, Dopazo J, Ros M, Medina‐Gomez G. microRNAs-mediated regulation of insulin signaling in white adipose tissue during aging: Role of caloric restriction. Aging Cell 2023; 22:e13919. [PMID: 37403257 PMCID: PMC10652342 DOI: 10.1111/acel.13919] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2022] [Revised: 05/29/2023] [Accepted: 06/03/2023] [Indexed: 07/06/2023] Open
Abstract
Caloric restriction is a non-pharmacological intervention known to ameliorate the metabolic defects associated with aging, including insulin resistance. The levels of miRNA expression may represent a predictive tool for aging-related alterations. In order to investigate the role of miRNAs underlying insulin resistance in adipose tissue during the early stages of aging, 3- and 12-month-old male animals fed ad libitum, and 12-month-old male animals fed with a 20% caloric restricted diet were used. In this work we demonstrate that specific miRNAs may contribute to the impaired insulin-stimulated glucose metabolism specifically in the subcutaneous white adipose tissue, through the regulation of target genes implicated in the insulin signaling cascade. Moreover, the expression of these miRNAs is modified by caloric restriction in middle-aged animals, in accordance with the improvement of the metabolic state. Overall, our work demonstrates that alterations in posttranscriptional gene expression because of miRNAs dysregulation might represent an endogenous mechanism by which insulin response in the subcutaneous fat depot is already affected at middle age. Importantly, caloric restriction could prevent this modulation, demonstrating that certain miRNAs could constitute potential biomarkers of age-related metabolic alterations.
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Affiliation(s)
- Patricia Corrales
- Department of Basic Sciences of Health, Area of Biochemistry and Molecular BiologyUniversidad Rey Juan Carlos, AlcorconMadridSpain
| | - Marina Martin‐Taboada
- Department of Basic Sciences of Health, Area of Biochemistry and Molecular BiologyUniversidad Rey Juan Carlos, AlcorconMadridSpain
| | - Yurena Vivas‐García
- Department of Basic Sciences of Health, Area of Biochemistry and Molecular BiologyUniversidad Rey Juan Carlos, AlcorconMadridSpain
- Metabolism and Cell Signalling LaboratorySpanish National Cancer Research CentreMadridSpain
| | - Lucia Torres
- Department of Basic Sciences of Health, Area of Biochemistry and Molecular BiologyUniversidad Rey Juan Carlos, AlcorconMadridSpain
| | | | - Yamila Lopez
- Department of Basic Sciences of Health, Area of Biochemistry and Molecular BiologyUniversidad Rey Juan Carlos, AlcorconMadridSpain
| | - Daniel Horrillo
- Department of Basic Sciences of Health, Area of Biochemistry and Molecular BiologyUniversidad Rey Juan Carlos, AlcorconMadridSpain
| | - Rocio Vila‐Bedmar
- Department of Basic Sciences of Health, Area of Biochemistry and Molecular BiologyUniversidad Rey Juan Carlos, AlcorconMadridSpain
| | - Eloisa Barber‐Cano
- Genomics and Genetics UnitCentro de Investigación Príncipe FelipeValenciaSpain
| | - Adriana Izquierdo‐Lahuerta
- Department of Basic Sciences of Health, Area of Biochemistry and Molecular BiologyUniversidad Rey Juan Carlos, AlcorconMadridSpain
| | - Maria Peña‐Chilet
- Platform for Computational Medicine, Fundación Progreso y SaludSevillaSpain
- Systems and Computational Medicine Unit, Biomedical Institute of Seville (IBiS)SevillaSpain
- Plataforma BiER, Consorcio de Investigaciones Biomédicas en Red en Enfermedades Raras (CIBERER)SevillaSpain
| | - Carmen Martínez
- Department of Basic Sciences of Health, Area of Biochemistry and Molecular BiologyUniversidad Rey Juan Carlos, AlcorconMadridSpain
| | - Joaquín Dopazo
- Platform for Computational Medicine, Fundación Progreso y SaludSevillaSpain
- Systems and Computational Medicine Unit, Biomedical Institute of Seville (IBiS)SevillaSpain
- Plataforma BiER, Consorcio de Investigaciones Biomédicas en Red en Enfermedades Raras (CIBERER)SevillaSpain
| | - Manuel Ros
- Department of Basic Sciences of Health, Area of Biochemistry and Molecular BiologyUniversidad Rey Juan Carlos, AlcorconMadridSpain
| | - Gema Medina‐Gomez
- Department of Basic Sciences of Health, Area of Biochemistry and Molecular BiologyUniversidad Rey Juan Carlos, AlcorconMadridSpain
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19
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Song L, Zhang S. Anti-Aging Activity and Modes of Action of Compounds from Natural Food Sources. Biomolecules 2023; 13:1600. [PMID: 38002283 PMCID: PMC10669485 DOI: 10.3390/biom13111600] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2023] [Revised: 10/21/2023] [Accepted: 10/28/2023] [Indexed: 11/26/2023] Open
Abstract
Aging is a natural and inescapable phenomenon characterized by a progressive deterioration of physiological functions, leading to increased vulnerability to chronic diseases and death. With economic and medical development, the elderly population is gradually increasing, which poses a great burden to society, the economy and the medical field. Thus, healthy aging has now become a common aspiration among people over the world. Accumulating evidence indicates that substances that can mediate the deteriorated physiological processes are highly likely to have the potential to prolong lifespan and improve aging-associated diseases. Foods from natural sources are full of bioactive compounds, such as polysaccharides, polyphenols, carotenoids, sterols, terpenoids and vitamins. These bioactive compounds and their derivatives have been shown to be able to delay aging and/or improve aging-associated diseases, thereby prolonging lifespan, via regulation of various physiological processes. Here, we summarize the current understanding of the anti-aging activities of the compounds, polysaccharides, polyphenols, carotenoids, sterols, terpenoids and vitamins from natural food sources, and their modes of action in delaying aging and improving aging-associated diseases. This will certainly provide a reference for further research on the anti-aging effects of bioactive compounds from natural food sources.
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Affiliation(s)
- Lili Song
- Key Laboratory of Biomedical Materials of Zhangjiakou, College of Lab Medicine, Hebei North University, Zhangjiakou 075000, China;
| | - Shicui Zhang
- College of Life and Geographic Sciences, Kashi University, Kashi 844000, China
- Xinjiang Key Laboratory of Biological Resources and Ecology of Pamirs Plateau, Kashi 844000, China
- Department of Marine Biology, Institute of Evolution & Marine Biodiversity, Ocean University of China, 5 Yushan Road, Qingdao 266003, China
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Feng S, Yang M, Liu S, He Y, Deng S, Gong Y. Oxidative stress as a bridge between age and stroke: A narrative review. JOURNAL OF INTENSIVE MEDICINE 2023; 3:313-319. [PMID: 38028635 PMCID: PMC10658045 DOI: 10.1016/j.jointm.2023.02.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/31/2022] [Revised: 12/09/2022] [Accepted: 02/07/2023] [Indexed: 12/01/2023]
Abstract
Stroke is the third most common cause of death globally and a leading cause of disability. The cellular and molecular changes following stroke and causes of neuronal death are not fully understood, and there are few effective treatments currently available. A rapid increase in the levels of reactive oxygen species (ROS) post stroke can overwhelm antioxidant defenses and trigger a series of pathophysiologic events including the inflammatory response, blood-brain barrier (BBB) disruption, apoptosis, and autophagy, ultimately leading to neuron degeneration and apoptosis. It is thought that beyond a certain age, the ROS accumulation resulting from stroke increases the risk of morbidity and mortality. In the present review, we summarize the role of oxidative stress (OS) as a link between aging and stroke pathogenesis. We also discuss how antioxidants can play a beneficial role in the prevention and treatment of stroke by eliminating harmful ROS, delaying aging, and alleviating damage to neurons.
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Affiliation(s)
- Shengjie Feng
- Department of Critical Care Medicine, Huashan Hospital, Fudan University, Shanghai 200040, China
| | - Miaoxian Yang
- Department of Critical Care Medicine, Huashan Hospital, Fudan University, Shanghai 200040, China
| | - Shengpeng Liu
- Department of Pediatrics, Shenzhen People's Hospital, The Second Clinical Medical College of Jinan University, Shenzhen, Guangdong, 518020,China
| | - Yu He
- Department of Critical Care Medicine, Huashan Hospital, Fudan University, Shanghai 200040, China
| | - Shuixiang Deng
- Department of Critical Care Medicine, Huashan Hospital, Fudan University, Shanghai 200040, China
| | - Ye Gong
- Department of Critical Care Medicine, Huashan Hospital, Fudan University, Shanghai 200040, China
- Department of Neurosurgery, Huashan Hospital, Fudan University, Shanghai 200040, China
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de Lima Gonçalves V, Ribeiro CT, Cavalheiro GL, Zaruz MJF, da Silva DH, Milagre ST, de Oliveira Andrade A, Pereira AA. A hybrid linear discriminant analysis and genetic algorithm to create a linear model of aging when performing motor tasks through inertial sensors positioned on the hand and forearm. Biomed Eng Online 2023; 22:98. [PMID: 37845723 PMCID: PMC10580547 DOI: 10.1186/s12938-023-01161-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2023] [Accepted: 10/01/2023] [Indexed: 10/18/2023] Open
Abstract
BACKGROUND During the aging process, cognitive functions and performance of the muscular and neural system show signs of decline, thus making the elderly more susceptible to disease and death. These alterations, which occur with advanced age, affect functional performance in both the lower and upper members, and consequently human motor functions. Objective measurements are important tools to help understand and characterize the dysfunctions and limitations that occur due to neuromuscular changes related to advancing age. Therefore, the objective of this study is to attest to the difference between groups of young and old individuals through manual movements and whether the combination of features can produce a linear correlation concerning the different age groups. METHODS This study counted on 99 participants, these were divided into 8 groups, which were grouped by age. The data collection was performed using inertial sensors (positioned on the back of the hand and on the back of the forearm). Firstly, the participants were divided into groups of young and elderly to verify if the groups could be distinguished through the features alone. Following this, the features were combined using the linear discriminant analysis (LDA), which gave rise to a singular feature called the LDA-value that aided in verifying the correlation between the different age ranges and the LDA-value. RESULTS The results demonstrated that 125 features are able to distinguish the difference between the groups of young and elderly individuals. The use of the LDA-value allows for the obtaining of a linear model of the changes that occur with aging in the performance of tasks in line with advancing age, the correlation obtained, using Pearson's coefficient, was 0.86. CONCLUSION When we compare only the young and elderly groups, the results indicate that there is a difference in the way tasks are performed between young and elderly individuals. When the 8 groups were analyzed, the linear correlation obtained was strong, with the LDA-value being effective in obtaining a linear correlation of the eight groups, demonstrating that although the features alone do not demonstrate gradual changes as a function of age, their combination established these changes.
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Affiliation(s)
- Veronica de Lima Gonçalves
- Postgraduate Program in Electrical and Biomedical Engineering, Faculty of Electrical Engineering, Centre for Innovation and Technology Assessment in Health, Federal University of Uberlândia, Uberlândia, Brazil
| | - Caio Tonus Ribeiro
- Postgraduate Program in Electrical and Biomedical Engineering, Faculty of Electrical Engineering, Centre for Innovation and Technology Assessment in Health, Federal University of Uberlândia, Uberlândia, Brazil
| | - Guilherme Lopes Cavalheiro
- Postgraduate Program in Electrical and Biomedical Engineering, Faculty of Electrical Engineering, Centre for Innovation and Technology Assessment in Health, Federal University of Uberlândia, Uberlândia, Brazil
| | - Maria José Ferreira Zaruz
- Postgraduate Program in Electrical and Biomedical Engineering, Faculty of Electrical Engineering, Centre for Innovation and Technology Assessment in Health, Federal University of Uberlândia, Uberlândia, Brazil
| | - Daniel Hilário da Silva
- Postgraduate Program in Electrical and Biomedical Engineering, Faculty of Electrical Engineering, Centre for Innovation and Technology Assessment in Health, Federal University of Uberlândia, Uberlândia, Brazil
| | - Selma Terezinha Milagre
- Postgraduate Program in Electrical and Biomedical Engineering, Faculty of Electrical Engineering, Centre for Innovation and Technology Assessment in Health, Federal University of Uberlândia, Uberlândia, Brazil
| | - Adriano de Oliveira Andrade
- Postgraduate Program in Electrical and Biomedical Engineering, Faculty of Electrical Engineering, Centre for Innovation and Technology Assessment in Health, Federal University of Uberlândia, Uberlândia, Brazil
| | - Adriano Alves Pereira
- Postgraduate Program in Electrical and Biomedical Engineering, Faculty of Electrical Engineering, Centre for Innovation and Technology Assessment in Health, Federal University of Uberlândia, Uberlândia, Brazil.
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Tsikas D, Tsikas SA, Mikuteit M, Ückert S. Circulating and Urinary Concentrations of Malondialdehyde in Aging Humans in Health and Disease: Review and Discussion. Biomedicines 2023; 11:2744. [PMID: 37893117 PMCID: PMC10604150 DOI: 10.3390/biomedicines11102744] [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: 09/06/2023] [Revised: 09/21/2023] [Accepted: 09/25/2023] [Indexed: 10/29/2023] Open
Abstract
(1) Background: Malondialdehyde (MDA) is a major and stable product of oxidative stress. MDA circulates in the blood and is excreted in the urine in its free and conjugated forms, notably with L-lysine and L-serine. MDA is the most frequently measured biomarker of oxidative stress, namely lipid peroxidation. Oxidative stress is generally assumed to be associated with disease and to increase with age. Here, we review and discuss the literature concerning circulating and excretory MDA as a biomarker of lipid peroxidation in aging subjects with regard to health and disease, such as kidney disease, erectile dysfunction, and COVID-19. (2) Methods: Scientific articles, notably those reporting on circulating (plasma, serum) and urinary MDA, which concern health and disease, and which appeared in PubMed were considered; they formed the basis for evaluating the potential increase in oxidative stress, particularly lipid peroxidation, as humans age. (3) Results and Conclusions: The results reported in the literature thus far are contradictory. The articles considered in the present study are not supportive of the general view that oxidative stress increases with aging. Many functions of several organs, including the filtration efficiency of the kidneys, are physiologically reduced in men and women as they age. This effect is likely to result in the apparent "accumulation" of biomarkers of oxidative stress, concomitantly with the "accumulation" of biomarkers of an organ's function, such as creatinine. How free and conjugated MDA forms are transported in various organs (including the brain) and how they are excreted in the urine via the kidney is not known, and investigating these questions should be the objective of forthcoming studies. The age- and gender-related increase in circulating creatinine might be a useful factor to be taken into consideration when investigating oxidative stress and aging.
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Affiliation(s)
- Dimitrios Tsikas
- Core Unit Proteomics, Institute of Toxicology, Hannover Medical School, 30623 Hannover, Germany
| | - Stefanos A. Tsikas
- Dean’s of Office of Studies, Academic Controlling, Hannover Medical School, 30623 Hannover, Germany
| | - Marie Mikuteit
- Department of Rheumatology and Immunology, Hannover Medical School, 30623 Hannover, Germany
- Dean’s Office, Curriculum Development, Hannover Medical School, 30623 Hannover, Germany
| | - Stefan Ückert
- Department of Urology and Urological Oncology, Division of Surgery, Hannover Medical School, 30623 Hannover, Germany
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Rothermund K, Englert C, Gerstorf D. Explaining Variation in Individual Aging, Its Sources, and Consequences: A Comprehensive Conceptual Model of Human Aging. Gerontology 2023; 69:1437-1447. [PMID: 37769642 PMCID: PMC10711769 DOI: 10.1159/000534324] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2023] [Accepted: 09/23/2023] [Indexed: 10/03/2023] Open
Abstract
We define aging as a characteristic deterioration in one (or more) observable attributes of an organism that typically occurs during later life. With this narrow functional definition, we gain the freedom to separate aging from other processes of age-related change (e.g., maturation, growth, illness, terminal decline). We introduce a structural model that distinguishes between (1) the phenomenon of aging, (2) the subjective experience of aging, (3) sources of aging, and (4) consequences of aging. A core focus of the model is on the role of buffering mechanisms of biological repair and personal adaptation that regulate the relations between sources of aging, aging proper, and its consequences. The quality and level of functioning of these buffering mechanisms also varies across the life span, which directly affects the sources of aging, resulting in either resilience against or accelerated aging, and thus can be considered to be a major source of the variation in aging processes among different individuals. External factors comprising attributes of the physical environment and sociocultural characteristics are considered as contexts in which aging occurs. These contextual factors are assumed to feed into the various components of the model. Our model provides an interdisciplinary account of human aging, its sources and consequences, and also its subjective experience, by integrating biological, psychological, lifestyle, and sociocultural factors, and by specifying their interrelations and interactions. The model provides a comprehensive understanding of individual human aging, its underlying processes, and modulating factors. It allows for the derivation of empirically testable hypotheses, and it helps practitioners to identify elements that lend themselves to targeted intervention efforts aimed at increasing the resilience of individuals against aging and buffering its negative consequences.
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Affiliation(s)
- Klaus Rothermund
- Department of Psychology, Friedrich Schiller University Jena, Jena, Germany
- Zentrum für Alternsforschung Jena (ZAJ), Jena, Germany
| | - Christoph Englert
- Zentrum für Alternsforschung Jena (ZAJ), Jena, Germany
- Institute of Biochemistry and Biophysics, Friedrich Schiller University Jena, Jena, Germany
- Leibniz Institute on Aging – Fritz Lipmann Institute, Jena, Germany
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Khodasevich D, Holland N, Hubbard A, Harley K, Deardorff J, Eskenazi B, Cardenas A. Associations between prenatal phthalate exposure and childhood epigenetic age acceleration. ENVIRONMENTAL RESEARCH 2023; 231:116067. [PMID: 37149020 PMCID: PMC10330458 DOI: 10.1016/j.envres.2023.116067] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/15/2022] [Revised: 03/06/2023] [Accepted: 05/04/2023] [Indexed: 05/08/2023]
Abstract
BACKGROUND Phthalates, a group of pervasive endocrine-disrupting chemicals found in plastics and personal care products, have been associated with a wide range of developmental and health outcomes. However, their impact on biomarkers of aging has not been characterized. We tested associations between prenatal exposure to 11 phthalate metabolites on epigenetic aging in children at birth, 7, 9, and 14 years of age. We hypothesized that prenatal phthalate exposure will be associated with epigenetic age acceleration measures at birth and in early childhood, with patterns dependent on sex and timing of DNAm measurement. METHODS Among 385 mother-child pairs from the CHAMACOS cohort, we measured DNAm at birth, 7, 9, and 14 years of age, and utilized adjusted linear regression to assess the association between prenatal phthalate exposure and Bohlin's Gestational Age Acceleration (GAA) at birth and Intrinsic Epigenetic Age Acceleration (IEAA) throughout childhood. Additionally, quantile g-computation was utilized to assess the effect of the phthalate mixture on GAA at birth and IEAA throughout childhood. RESULTS We found a negative association between prenatal di (2-ethylhexyl) phthalate (DEHP) exposure and IEAA among males at age 7 (-0.62 years; 95% CI:-1.06 to -0.18), and a marginal negative association between the whole phthalate mixture and GAA among males at birth (-1.54 days, 95% CI: -2.79 to -0.28), while most other associations were nonsignificant. CONCLUSIONS Our results suggest that prenatal exposure to certain phthalates is associated with epigenetic aging in children. Additionally, our findings suggest that the influence of prenatal exposures on epigenetic age may only manifest during specific periods of child development, and studies relying on DNAm measurements solely from cord blood or single time points may overlook potential relationships.
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Affiliation(s)
- Dennis Khodasevich
- Division of Environmental Health Sciences, School of Public Health, University of California, Berkeley, CA, USA; Center for Computational Biology, University of California, Berkeley, CA, USA
| | - Nina Holland
- Division of Environmental Health Sciences, School of Public Health, University of California, Berkeley, CA, USA; Center for Environmental Research and Children's Health (CERCH), School of Public Health, University of California, Berkeley, Berkeley, CA, USA
| | - Alan Hubbard
- Division of Biostatistics, School of Public Health, University of California, Berkeley, CA, USA
| | - Kim Harley
- Center for Environmental Research and Children's Health (CERCH), School of Public Health, University of California, Berkeley, Berkeley, CA, USA
| | - Julianna Deardorff
- Center for Environmental Research and Children's Health (CERCH), School of Public Health, University of California, Berkeley, Berkeley, CA, USA; Division of Community Health Sciences, School of Public Health, University of California, Berkeley, CA, USA
| | - Brenda Eskenazi
- Center for Environmental Research and Children's Health (CERCH), School of Public Health, University of California, Berkeley, Berkeley, CA, USA
| | - Andres Cardenas
- Department of Epidemiology and Population Health, Stanford University School of Medicine, Stanford, CA, USA.
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Park M, Song R, Ju K, Shin JC, Seo J, Fan X, Gao X, Ryu A, Li Y. Effects of Tai Chi and Qigong on cognitive and physical functions in older adults: systematic review, meta-analysis, and meta-regression of randomized clinical trials. BMC Geriatr 2023; 23:352. [PMID: 37280512 DOI: 10.1186/s12877-023-04070-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2023] [Accepted: 05/25/2023] [Indexed: 06/08/2023] Open
Abstract
BACKGROUND Older adults experience age-related declines in physical and cognitive functions due to interactions between aging and chronic diseases. Tai Chi and Qigong (TCQ) might be beneficial in improving the physical function and delaying the cognitive decline of this population. The potential underlying mechanism was explored to determine the effects of TCQ on cognitive function via direct or indirect pathways. PURPOSE The objective of this systematic review was to determine the effects of TCQ on cognitive and physical functions in older adults using meta-analysis, and to determine the impact of TCQ on cognitive function while controlling for physical function using a meta-regression approach. METHODS A systematic search of 13 electronic databases (in English, Korean, and Chinese languages) identified 10,292 potentially eligible studies published between inception and May 2022. The bias in individual studies was assessed using the Cochrane Risk of Bias (version 2.0) tool. The heterogeneity of the studies was evaluated using a 95% prediction interval, and the meta-analysis and meta-regression were implemented using the Comprehensive Meta-Analysis (version 3) software. RESULTS Our search identified 17 randomized studies (n = 2,365, mean age = 70.3 years). The results of the meta-analysis that used a random-effects model indicated that TCQ had significant effects on both cognitive (Hedges' g = 0.29, 95% confidence interval [CI] = 0.17 to 0.42) and physical (Hedges' g = 0.32, 95% CI = 0.19 to 0.44) functions. We used meta-regression to explore the effect size of TCQ in association with physical function level. The regression model was significant (Q = 25.01, p = .070), and 55% of the heterogeneity was explained by physical function as a moderator variable. The effects of TCQ on cognitive function remained significant in this model when controlling for the effect of physical function (β = 0.46, p = .011). CONCLUSION This meta-regression of 17 randomized studies strongly suggests that TCQ has beneficial effects on physical and cognitive functions in older adults. The effect of TCQ on cognitive function remained significant after taking into account the significant effects of physical function as a moderator. The findings imply the potential health benefits of TCQ by promoting cognitive function in older adults directly and indirectly through enhancing physical function. PROSPERO REGISTRATION NUMBER: *PROSPERO international prospective register of systematic reviews, registration ID CRD42023394358.
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Affiliation(s)
- Moonkyoung Park
- Chungnam National University, College of Nursing, Daejeon, 35015, Republic of Korea
| | - Rhayun Song
- Chungnam National University, College of Nursing, Daejeon, 35015, Republic of Korea.
| | - Kyoungok Ju
- Chungnam National University, College of Nursing, Daejeon, 35015, Republic of Korea
| | - Jacqueline C Shin
- Indiana State University, Department of Psychology, Terre Haute, IN, 47802, USA
| | - Jisu Seo
- Chungnam National University, College of Nursing, Daejeon, 35015, Republic of Korea
| | - Xing Fan
- Chungnam National University, College of Nursing, Daejeon, 35015, Republic of Korea
| | - Xianqi Gao
- Chungnam National University, College of Nursing, Daejeon, 35015, Republic of Korea
| | - Ahyun Ryu
- Chungnam National University, College of Nursing, Daejeon, 35015, Republic of Korea
| | - Yuelin Li
- Chungnam National University, College of Nursing, Daejeon, 35015, Republic of Korea
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Fišar Z, Hroudová J, Zvěřová M, Jirák R, Raboch J, Kitzlerová E. Age-Dependent Alterations in Platelet Mitochondrial Respiration. Biomedicines 2023; 11:1564. [PMID: 37371659 DOI: 10.3390/biomedicines11061564] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2023] [Revised: 05/25/2023] [Accepted: 05/26/2023] [Indexed: 06/29/2023] Open
Abstract
Mitochondrial dysfunction is an important cellular hallmark of aging and neurodegeneration. Platelets are a useful model to study the systemic manifestations of mitochondrial dysfunction. To evaluate the age dependence of mitochondrial parameters, citrate synthase activity, respiratory chain complex activity, and oxygen consumption kinetics were assessed. The effect of cognitive impairment was examined by comparing the age dependence of mitochondrial parameters in healthy individuals and those with neuropsychiatric disease. The study found a significant negative slope of age-dependence for both the activity of individual mitochondrial enzymes (citrate synthase and complex II) and parameters of mitochondrial respiration in intact platelets (routine respiration, maximum capacity of electron transport system, and respiratory rate after complex I inhibition). However, there was no significant difference in the age-related changes of mitochondrial parameters between individuals with and without cognitive impairment. These findings highlight the potential of measuring mitochondrial respiration in intact platelets as a means to assess age-related mitochondrial dysfunction. The results indicate that drugs and interventions targeting mitochondrial respiration may have the potential to slow down or eliminate certain aging and neurodegenerative processes. Mitochondrial respiration in platelets holds promise as a biomarker of aging, irrespective of the degree of cognitive impairment.
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Affiliation(s)
- Zdeněk Fišar
- Department of Psychiatry, First Faculty of Medicine, Charles University and General University Hospital in Prague, Ke Karlovu 11, 120 00 Prague, Czech Republic
| | - Jana Hroudová
- Department of Psychiatry, First Faculty of Medicine, Charles University and General University Hospital in Prague, Ke Karlovu 11, 120 00 Prague, Czech Republic
| | - Martina Zvěřová
- Department of Psychiatry, First Faculty of Medicine, Charles University and General University Hospital in Prague, Ke Karlovu 11, 120 00 Prague, Czech Republic
| | - Roman Jirák
- Department of Psychiatry, First Faculty of Medicine, Charles University and General University Hospital in Prague, Ke Karlovu 11, 120 00 Prague, Czech Republic
| | - Jiří Raboch
- Department of Psychiatry, First Faculty of Medicine, Charles University and General University Hospital in Prague, Ke Karlovu 11, 120 00 Prague, Czech Republic
| | - Eva Kitzlerová
- Department of Psychiatry, First Faculty of Medicine, Charles University and General University Hospital in Prague, Ke Karlovu 11, 120 00 Prague, Czech Republic
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Zhang J, Zhang T, Zeng S, Zhang X, Zhou F, Gillies MC, Zhu L. The Role of Nrf2/sMAF Signalling in Retina Ageing and Retinal Diseases. Biomedicines 2023; 11:1512. [PMID: 37371607 DOI: 10.3390/biomedicines11061512] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2023] [Revised: 05/10/2023] [Accepted: 05/19/2023] [Indexed: 06/29/2023] Open
Abstract
Age-related diseases, such as Parkinson's disease, Alzheimer's disease, cardiovascular diseases, cancers, and age-related macular disease, have become increasingly prominent as the population ages. Oxygen is essential for living organisms, but it may also cause disease when it is transformed into reactive oxygen species via biological processes in cells. Most of the production of ROS occurs in mitochondrial complexes I and III. The accumulation of ROS in cells causes oxidative stress, which plays a crucial role in human ageing and many diseases. Nuclear factor-erythroid 2-related factor 2 (Nrf2) is a key antioxidant transcription factor that plays a central role in many diseases and ageing in general. It regulates many downstream antioxidative enzymes when cells are exposed to oxidative stress. A basic-region leucine zipper (bZIP) transcription factor, MAF, specifically the small MAF subfamily (sMAFs), forms heterodimers with Nrf2, which bind with Maf-recognition elements (MAREs) in response to oxidative stress. The role of this complex in the human retina remains unclear. This review summarises the current knowledge about Nrf2 and its downstream signalling, especially its cofactor-MAF, in ageing and diseases, with a focus on the retina. Since Nrf2 is the master regulator of redox homeostasis in cells, we hypothesise that targeting Nrf2 is a promising therapeutic approach for many age-related diseases.
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Affiliation(s)
- Jialing Zhang
- Save Sight Institute, Sydney Medical School, Faculty of Medicine and Health, The University of Sydney, Sydney, NSW 2006, Australia
| | - Ting Zhang
- Save Sight Institute, Sydney Medical School, Faculty of Medicine and Health, The University of Sydney, Sydney, NSW 2006, Australia
| | - Shaoxue Zeng
- Save Sight Institute, Sydney Medical School, Faculty of Medicine and Health, The University of Sydney, Sydney, NSW 2006, Australia
| | - Xinyuan Zhang
- Department of Ocular Fundus Diseases, Beijing Tongren Eye Centre, Tongren Hospital, Capital Medical University, Beijing 100073, China
| | - Fanfan Zhou
- Faculty of Pharmacy, The University of Sydney, Sydney, NSW 2006, Australia
| | - Mark C Gillies
- Save Sight Institute, Sydney Medical School, Faculty of Medicine and Health, The University of Sydney, Sydney, NSW 2006, Australia
| | - Ling Zhu
- Save Sight Institute, Sydney Medical School, Faculty of Medicine and Health, The University of Sydney, Sydney, NSW 2006, Australia
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Plekratoke K, Boonyarat C, Monthakantirat O, Nualkaew N, Wangboonskul J, Awale S, Chulikhit Y, Daodee S, Khamphukdee C, Chaiwiwatrakul S, Waiwut P. The Effect of Ethanol Extract from Mesua ferrea Linn Flower on Alzheimer's Disease and Its Underlying Mechanism. Curr Issues Mol Biol 2023; 45:4063-4079. [PMID: 37232728 DOI: 10.3390/cimb45050259] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2023] [Revised: 04/27/2023] [Accepted: 05/03/2023] [Indexed: 05/27/2023] Open
Abstract
The effects of Mesua ferrea Linn flower (MFE) extract on the pathogenic cascade of Alzheimer's disease (AD) were determined by an in vitro and cell culture model in the search for a potential candidate for the treatment of AD. The 2,2'-azino-bis-3-ethylbenzthiazoline-6-sulphonic acid (ABTS) and 1,1-diphenyl-2-picrylhydrazyl (DPPH) assay exhibited that the MFE extract had antioxidant activities. According to the Ellman and the thioflavin T method's result, the extracts could inhibit acetylcholinesterase and β-amyloid (Aβ) aggregation. Studies on neuroprotection in cell culture found that the MFE extract could reduce the death of human neuroblastoma cells (SH-SY5Y) caused by H2O2 and Aβ. Western blot analysis exhibited that the MFE extract alleviated H2O2-induced neuronal cell damage by downregulating the pro-apoptotic proteins, including cleaved caspase-3, Bax, and by enhancing the expression of anti-apoptotic markers including MCl1, BClxl, and survivin. Moreover, MFE extract inhibited the expression of APP, presenilin 1, and BACE, and increased the expression of neprilysin. In addition, the MFE extract could enhance scopolamine-induced memory deficit in mice. Overall, results showed that the MFE extract had several modes of action related to the AD pathogenesis cascade, including antioxidants, anti-acetylcholinesterase, anti-Aβ aggregation, and neuroprotection against oxidative stress and Aβ. Therefore, the M. ferrea L. flower might be a possibility for further development as a medication for AD.
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Affiliation(s)
- Kusawadee Plekratoke
- Biomedical Science Program, Graduate School, Khon Kaen University, Khon Kaen 40002, Thailand
| | - Chantana Boonyarat
- Faculty of Pharmaceutical Sciences, Khon Kaen University, Khon Kaen 40002, Thailand
| | | | - Natsajee Nualkaew
- Faculty of Pharmaceutical Sciences, Khon Kaen University, Khon Kaen 40002, Thailand
| | - Jinda Wangboonskul
- Faculty of Pharmaceutical Sciences, Thummasart University, Bangkok 10330, Thailand
| | - Suresh Awale
- Division of Natural Drug Discovery, Institute of Natural Medicine, University of Toyama, 2630 Sugitani, Toyama 930-0194, Japan
| | - Yaowared Chulikhit
- Faculty of Pharmaceutical Sciences, Khon Kaen University, Khon Kaen 40002, Thailand
| | - Supawadee Daodee
- Faculty of Pharmaceutical Sciences, Khon Kaen University, Khon Kaen 40002, Thailand
| | - Charinya Khamphukdee
- Faculty of Pharmaceutical Sciences, Khon Kaen University, Khon Kaen 40002, Thailand
| | - Suchada Chaiwiwatrakul
- Department of English, Faculty of Humanities and Social Sciences, Ubon Ratchathani Rajabhat University, Ubon Ratchathani 34000, Thailand
| | - Pornthip Waiwut
- Faculty of Pharmaceutical Sciences, Ubon Ratchathani University, Ubon Ratchathani 34190, Thailand
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Lathe R, St Clair D. Programmed ageing: decline of stem cell renewal, immunosenescence, and Alzheimer's disease. Biol Rev Camb Philos Soc 2023. [PMID: 37068798 DOI: 10.1111/brv.12959] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2022] [Revised: 03/27/2023] [Accepted: 03/30/2023] [Indexed: 04/19/2023]
Abstract
The characteristic maximum lifespan varies enormously across animal species from a few hours to hundreds of years. This argues that maximum lifespan, and the ageing process that itself dictates lifespan, are to a large extent genetically determined. Although controversial, this is supported by firm evidence that semelparous species display evolutionarily programmed ageing in response to reproductive and environmental cues. Parabiosis experiments reveal that ageing is orchestrated systemically through the circulation, accompanied by programmed changes in hormone levels across a lifetime. This implies that, like the circadian and circannual clocks, there is a master 'clock of age' (circavital clock) located in the limbic brain of mammals that modulates systemic changes in growth factor and hormone secretion over the lifespan, as well as systemic alterations in gene expression as revealed by genomic methylation analysis. Studies on accelerated ageing in mice, as well as human longevity genes, converge on evolutionarily conserved fibroblast growth factors (FGFs) and their receptors, including KLOTHO, as well as insulin-like growth factors (IGFs) and steroid hormones, as key players mediating the systemic effects of ageing. Age-related changes in these and multiple other factors are inferred to cause a progressive decline in tissue maintenance through failure of stem cell replenishment. This most severely affects the immune system, which requires constant renewal from bone marrow stem cells. Age-related immune decline increases risk of infection whereas lifespan can be extended in germfree animals. This and other evidence suggests that infection is the major cause of death in higher organisms. Immune decline is also associated with age-related diseases. Taking the example of Alzheimer's disease (AD), we assess the evidence that AD is caused by immunosenescence and infection. The signature protein of AD brain, Aβ, is now known to be an antimicrobial peptide, and Aβ deposits in AD brain may be a response to infection rather than a cause of disease. Because some cognitively normal elderly individuals show extensive neuropathology, we argue that the location of the pathology is crucial - specifically, lesions to limbic brain are likely to accentuate immunosenescence, and could thus underlie a vicious cycle of accelerated immune decline and microbial proliferation that culminates in AD. This general model may extend to other age-related diseases, and we propose a general paradigm of organismal senescence in which declining stem cell proliferation leads to programmed immunosenescence and mortality.
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Affiliation(s)
- Richard Lathe
- Division of Infection Medicine, Chancellor's Building, University of Edinburgh Medical School, Little France, Edinburgh, EH16 4SB, UK
| | - David St Clair
- Institute of Medical Sciences, School of Medicine, University of Aberdeen, Aberdeen, AB25 2ZD, UK
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la Torre A, Lo Vecchio F, Greco A. Epigenetic Mechanisms of Aging and Aging-Associated Diseases. Cells 2023; 12:cells12081163. [PMID: 37190071 DOI: 10.3390/cells12081163] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2022] [Revised: 04/04/2023] [Accepted: 04/07/2023] [Indexed: 05/17/2023] Open
Abstract
Aging is an inevitable outcome of life, characterized by a progressive decline in tissue and organ function. At a molecular level, it is marked by the gradual alterations of biomolecules. Indeed, important changes are observed on the DNA, as well as at a protein level, that are influenced by both genetic and environmental parameters. These molecular changes directly contribute to the development or progression of several human pathologies, including cancer, diabetes, osteoporosis, neurodegenerative disorders and others aging-related diseases. Additionally, they increase the risk of mortality. Therefore, deciphering the hallmarks of aging represents a possibility for identifying potential druggable targets to attenuate the aging process, and then the age-related comorbidities. Given the link between aging, genetic, and epigenetic alterations, and given the reversible nature of epigenetic mechanisms, the precisely understanding of these factors may provide a potential therapeutic approach for age-related decline and disease. In this review, we center on epigenetic regulatory mechanisms and their aging-associated changes, highlighting their inferences in age-associated diseases.
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Affiliation(s)
- Annamaria la Torre
- Laboratory of Gerontology and Geriatrics, Fondazione IRCCS Casa Sollievo della Sofferenza, San Giovanni Rotondo, 71013 Foggia, Italy
| | - Filomena Lo Vecchio
- Laboratory of Gerontology and Geriatrics, Fondazione IRCCS Casa Sollievo della Sofferenza, San Giovanni Rotondo, 71013 Foggia, Italy
| | - Antonio Greco
- Complex Unit of Geriatrics, Department of Medical Sciences, Fondazione IRCCS Casa Sollievo della Sofferenza, San Giovanni Rotondo, 71013 Foggia, Italy
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Grammatikopoulou MG, Skoufas E, Kanellakis S, Sanoudou D, Pavlopoulos GA, Eliopoulos AG, Gkouskou KK. Ageotypes revisited: The brain and central nervous system dysfunction as a major nutritional and lifestyle target for healthy aging. Maturitas 2023; 170:51-57. [PMID: 36773500 DOI: 10.1016/j.maturitas.2023.01.013] [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: 09/02/2022] [Revised: 01/13/2023] [Accepted: 01/18/2023] [Indexed: 02/09/2023]
Abstract
Undeniably, biological age can significantly differ between individuals of similar chronological age. Longitudinal, deep multi-omic profiling has recently enabled the identification of individuals with distinct aging phenotypes, termed 'ageotypes'. This effort has provided a plethora of data and new insights into the diverse molecular mechanisms presumed to drive aging. Translational opportunities stemming from this knowledge continue to evolve, providing an opportunity for the provision of nutritional interventions aiming to decelerate the aging process. In this framework, the contemporary ageotypes classification was revisited via in silico analyses, with the brain and nervous system being identified as the primary targets of age-related biomolecules, acting through inflammatory and metabolic pathways. Nutritional and lifestyle factors affecting these pathways in the brain and central nervous system that could help guide personalized recommendations for the attainment of healthy aging are discussed.
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Affiliation(s)
- Maria G Grammatikopoulou
- Unit of Immunonutrition and Clinical Nutrition, Department of Rheumatology and Clinical Immunology, University General Hospital of Larissa, Faculty of Medicine, School of Health Sciences, University of Thessaly, Biopolis, Larissa GR-41110, Greece.
| | - Efstathios Skoufas
- Department of Biology, School of Medicine, National and Kapodistrian University of Athens, Mikras Asias 75, Athens GR-11527, Greece.
| | - Spyridon Kanellakis
- Department of Nutrition and Dietetics, Harokopio University, Kallithea, Athens, Greece.
| | - Despina Sanoudou
- Clinical Genomics and Pharmacogenomics Unit, 4th Department of Internal Medicine, School of Medicine, National and Kapodistrian University of Athens, Athens, Greece; Center for New Biotechnologies and Precision Medicine, School of Medicine, National and Kapodistrian University of Athens, Athens, Greece; Center of Basic Research, Biomedical Research Foundation of the Academy of Athens, Athens, Greece.
| | - Georgios A Pavlopoulos
- Institute for Fundamental Biomedical Research, Biomedical Sciences Research Center Alexander Fleming, Vari, Greece
| | - Aristides G Eliopoulos
- Department of Biology, School of Medicine, National and Kapodistrian University of Athens, Mikras Asias 75, Athens GR-11527, Greece; Center for New Biotechnologies and Precision Medicine, School of Medicine, National and Kapodistrian University of Athens, Athens, Greece; Center of Basic Research, Biomedical Research Foundation of the Academy of Athens, Athens, Greece.
| | - Kalliopi K Gkouskou
- Department of Biology, School of Medicine, National and Kapodistrian University of Athens, Mikras Asias 75, Athens GR-11527, Greece; Embiodiagnostics Biology Research Company, 1 Melissinon and Damvergidon Street, Heraklion GR-71305, Crete, Greece.
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32
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Hajzler I, Nenadović K, Vučinić M. Health changes of old cats. J Vet Behav 2023. [DOI: 10.1016/j.jveb.2023.04.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/09/2023]
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33
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Huang L, Li R, Ye L, Zhang S, Tian H, Du M, Qu C, Li S, Li J, Yang M, Wu B, Chen R, Huang G, Zhong L, Yang H, Yu M, Shi Y, Wang C, Zhang H, Chen W, Yang Z. Deep Sc-RNA sequencing decoding the molecular dynamic architecture of the human retina. SCIENCE CHINA. LIFE SCIENCES 2023; 66:496-515. [PMID: 36115892 DOI: 10.1007/s11427-021-2163-1] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/21/2021] [Accepted: 07/13/2022] [Indexed: 10/14/2022]
Abstract
The human retina serves as a light detector and signals transmission tissue. Advanced insights into retinal disease mechanisms and therapeutic strategies require a deep understanding of healthy retina molecular events. Here, we sequenced the mRNA of over 0.6 million single cells from human retinas across six regions at nine different ages. Sixty cell sub-types have been identified from the human mature retinas with unique markers. We revealed regional and age differences of gene expression profiles within the human retina. Cell-cell interaction analysis indicated a rich synaptic connection within the retinal cells. Gene expression regulon analysis revealed the specific expression of transcription factors and their regulated genes in human retina cell types. Some of the gene's expression, such as DKK3, are elevated in aged retinas. A further functional investigation suggested that over expression of DKK3 could impact mitochondrial stability. Overall, decoding the molecular dynamic architecture of the human retina improves our understanding of the vision system.
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Affiliation(s)
- Lulin Huang
- The Key Laboratory for Human Disease Gene Study of Sichuan Province and the Department of Laboratory Medicine, Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, Chengdu, 610075, China
- Research Unit for Blindness Prevention of Chinese Academy of Medical Sciences (2019RU026), Sichuan Academy of Medical Sciences, Chengdu, 610075, China
| | - Runze Li
- The Key Laboratory for Human Disease Gene Study of Sichuan Province and the Department of Laboratory Medicine, Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, Chengdu, 610075, China
| | - Lin Ye
- The Key Laboratory for Human Disease Gene Study of Sichuan Province and the Department of Laboratory Medicine, Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, Chengdu, 610075, China
| | - Shanshan Zhang
- The Key Laboratory for Human Disease Gene Study of Sichuan Province and the Department of Laboratory Medicine, Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, Chengdu, 610075, China
| | - Huaping Tian
- The Key Laboratory for Human Disease Gene Study of Sichuan Province and the Department of Laboratory Medicine, Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, Chengdu, 610075, China
| | - Mingyan Du
- The Key Laboratory for Human Disease Gene Study of Sichuan Province and the Department of Laboratory Medicine, Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, Chengdu, 610075, China
| | - Chao Qu
- Department of Ophthalmology, Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, Chengdu, 610075, China
| | - Shujin Li
- The Key Laboratory for Human Disease Gene Study of Sichuan Province and the Department of Laboratory Medicine, Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, Chengdu, 610075, China
| | - Jie Li
- Department of Ophthalmology, Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, Chengdu, 610075, China
| | - Mu Yang
- The Key Laboratory for Human Disease Gene Study of Sichuan Province and the Department of Laboratory Medicine, Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, Chengdu, 610075, China
| | - Biao Wu
- School of Ophthalmology and Optometry, Wenzhou Medical College, Wenzhou, 325035, China
| | - Ran Chen
- School of Ophthalmology and Optometry, Wenzhou Medical College, Wenzhou, 325035, China
| | - Guo Huang
- The Key Laboratory for Human Disease Gene Study of Sichuan Province and the Department of Laboratory Medicine, Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, Chengdu, 610075, China
| | - Ling Zhong
- The Key Laboratory for Human Disease Gene Study of Sichuan Province and the Department of Laboratory Medicine, Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, Chengdu, 610075, China
| | - Hongjie Yang
- Department of Organ Transplant Center, Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, Chengdu, 610075, China
| | - Man Yu
- Department of Ophthalmology, Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, Chengdu, 610075, China
| | - Yi Shi
- The Key Laboratory for Human Disease Gene Study of Sichuan Province and the Department of Laboratory Medicine, Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, Chengdu, 610075, China
| | - Changguan Wang
- Department of Ophthalmology, Peking University Third Hospital, Beijing, 100730, China
| | - Houbin Zhang
- The Key Laboratory for Human Disease Gene Study of Sichuan Province and the Department of Laboratory Medicine, Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, Chengdu, 610075, China
| | - Wei Chen
- School of Ophthalmology and Optometry, Wenzhou Medical College, Wenzhou, 325035, China
| | - Zhenglin Yang
- The Key Laboratory for Human Disease Gene Study of Sichuan Province and the Department of Laboratory Medicine, Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, Chengdu, 610075, China.
- Research Unit for Blindness Prevention of Chinese Academy of Medical Sciences (2019RU026), Sichuan Academy of Medical Sciences, Chengdu, 610075, China.
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Sharma V, Mehdi MM. Oxidative stress, inflammation and hormesis: The role of dietary and lifestyle modifications on aging. Neurochem Int 2023; 164:105490. [PMID: 36702401 DOI: 10.1016/j.neuint.2023.105490] [Citation(s) in RCA: 15] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2022] [Revised: 12/01/2022] [Accepted: 01/19/2023] [Indexed: 01/25/2023]
Abstract
Oxidative stress (OS) is primarily caused by the formation of free radicals and reactive oxygen species; it is considered as one of the prominent factors in slowing down and degrading cellular machinery of an individual, and it eventually leads to aging and age-related diseases by its continuous higher state. The relation between molecular damage and OS should be particularized to understand the beginning of destruction at the cellular levels, extending outwards to affect tissues, organs, and ultimately to the organism. Several OS biomarkers, which are established at the biomolecular level, are useful in investigating the disease susceptibility during aging. Slowing down the aging process is a matter of reducing the rate of oxidative damage to the cellular machinery over time. The breakdown of homeostasis, the mild overcompensation, the reestablishment of homeostasis, and the adaptive nature of the process are the essential features of hormesis, which incorporates several factors, including calorie restriction, nutrition and lifestyle modifications that play an important role in reducing the OS. In the current review, along with the concept and theories of aging (with emphasis on free radical theory), various manifestations of OS with special attention on mitochondrial dysfunction and age-related diseases have been discussed. To alleviate the OS, hormetic approaches including caloric restriction, exercise, and nutrition have also been discussed.
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Affiliation(s)
- Vinita Sharma
- School of Bioengineering and Biosciences, Lovely Professional University, Punjab, 144401, India
| | - Mohammad Murtaza Mehdi
- School of Bioengineering and Biosciences, Lovely Professional University, Punjab, 144401, India.
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Endogenous DAF-16 spatiotemporal activity quantitatively predicts lifespan extension induced by dietary restriction. Commun Biol 2023; 6:203. [PMID: 36807646 PMCID: PMC9941123 DOI: 10.1038/s42003-023-04562-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2022] [Accepted: 02/07/2023] [Indexed: 02/22/2023] Open
Abstract
In many organisms, dietary restriction (DR) leads to lifespan extension through the activation of cell protection and pro-longevity gene expression programs. In the nematode C. elegans, the DAF-16 transcription factor is a key aging regulator that governs the Insulin/IGF-1 signaling pathway and undergoes translocation from the cytoplasm to the nucleus of cells when animals are exposed to food limitation. However, how large is the influence of DR on DAF-16 activity, and its subsequent impact on lifespan has not been quantitatively determined. In this work, we assess the endogenous activity of DAF-16 under various DR regimes by coupling CRISPR/Cas9-enabled fluorescent tagging of DAF-16 with quantitative image analysis and machine learning. Our results indicate that DR regimes induce strong endogenous DAF-16 activity, although DAF-16 is less responsive in aged individuals. DAF-16 activity is in turn a robust predictor of mean lifespan in C. elegans, accounting for 78% of its variability under DR. Analysis of tissue-specific expression aided by a machine learning tissue classifier reveals that, under DR, the largest contribution to DAF-16 nuclear intensity originates from the intestine and neurons. DR also drives DAF-16 activity in unexpected locations such as the germline and intestinal nucleoli.
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36
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Shi X, Tian Y, Zhai S, Liu Y, Chu S, Xiong Z. The progress of research on the application of redox nanomaterials in disease therapy. Front Chem 2023; 11:1115440. [PMID: 36814542 PMCID: PMC9939781 DOI: 10.3389/fchem.2023.1115440] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2022] [Accepted: 01/23/2023] [Indexed: 02/08/2023] Open
Abstract
Redox imbalance can trigger cell dysfunction and damage and plays a vital role in the origin and progression of many diseases. Maintaining the balance between oxidants and antioxidants in vivo is a complicated and arduous task, leading to ongoing research into the construction of redox nanomaterials. Nanodrug platforms with redox characteristics can not only reduce the adverse effects of oxidative stress on tissues by removing excess oxidants from the body but also have multienzyme-like activity, which can play a cytotoxic role in tumor tissues through the catalytic oxidation of their substrates to produce harmful reactive oxygen species such as hydroxyl radicals. In this review, various redox nanomaterials currently used in disease therapy are discussed, emphasizing the treatment methods and their applications in tumors and other human tissues. Finally, the limitations of the current clinical application of redox nanomaterials are considered.
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Affiliation(s)
- Xiaolu Shi
- Department of Implantology, Hospital of Stomatology, Jilin University, Changchun, China
| | - Ye Tian
- Department of Implantology, Hospital of Stomatology, Jilin University, Changchun, China
| | - Shaobo Zhai
- Department of Implantology, Hospital of Stomatology, Jilin University, Changchun, China
| | - Yang Liu
- Department of Implantology, Hospital of Stomatology, Jilin University, Changchun, China
| | - Shunli Chu
- Department of Implantology, Hospital of Stomatology, Jilin University, Changchun, China,*Correspondence: Shunli Chu, ; Zhengrong Xiong,
| | - Zhengrong Xiong
- Polymer Composites Engineering Laboratory, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences (CAS), Changchun, China,Department of Applied Chemistry, University of Science and Technology of China, Hefei, China,*Correspondence: Shunli Chu, ; Zhengrong Xiong,
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Linghui D, Simin Y, Zilong Z, Yuxiao L, Shi Q, Birong D. The relationship between serum klotho and cognitive performance in a nationally representative sample of US adults. Front Aging Neurosci 2023; 15:1053390. [PMID: 36819720 PMCID: PMC9932504 DOI: 10.3389/fnagi.2023.1053390] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2022] [Accepted: 01/05/2023] [Indexed: 02/05/2023] Open
Abstract
Purpose Aging is the primary risk factor for cognitive decline. Serum klotho, as an anti-aging protein, may be involved in cognitive decline. Thus, we aim to explorer the correlation between serum klotho and cognitive performance among an older adult population in the United States. Methods We performed a cross-sectional study using data from NHANES 2011-2014. Serum klotho was analyzed by ELISA. Cognitive function was measured by Establish a Registry for Alzheimer's Disease (CERAD) test, Animal Fluency test and Digit Symbol Substitution Test (DSST) score. The relationship between serum klotho and cognition was analyzed by a multivariable regression model. Results A total of 2,171 participants aged 60-79 years were included. Median serum klotho concentration was 851.52 pg./ml (SD = 294.07). We also categorized serum klotho concentrates into quartiles. After fully adjusting pertinent variables, compared to those with lowest klotho levels (206.3-658.4 pg./ml), individuals with highest klotho concentrates (983.3-3,456 pg./ml) had a higher CERAD score [β (95%CI): 0.97 (0.25, 1.69) p = 0.008] and DSST score [β (95%CI): 1.86 (0.25, 3.47), p = 0.024]. Conclusion Our findings indicated that, among the general population of American older adults, serum klotho concentrates may serve as a marker of cognitive health. The benefits of klotho on aging process and neurodegenerative disorders should be paid more attention.
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Affiliation(s)
- Deng Linghui
- National Clinical Research Center of Geriatrics, The Center of Gerontology and Geriatrics, West China Hospital, Sichuan University, Chengdu, China
| | - Yu Simin
- Department of Urology, Institute of Urology and National Clinical Research Center for Geriatrics, West China Hospital of Sichuan University, Chengdu, China
| | - Zhang Zilong
- Department of Urology, Institute of Urology and National Clinical Research Center for Geriatrics, West China Hospital of Sichuan University, Chengdu, China
| | - Li Yuxiao
- National Clinical Research Center of Geriatrics, The Center of Gerontology and Geriatrics, West China Hospital, Sichuan University, Chengdu, China
| | - Qiu Shi
- Department of Urology, Institute of Urology and National Clinical Research Center for Geriatrics, West China Hospital of Sichuan University, Chengdu, China,*Correspondence: Qiu Shi, ✉
| | - Dong Birong
- National Clinical Research Center of Geriatrics, The Center of Gerontology and Geriatrics, West China Hospital, Sichuan University, Chengdu, China,Dong Birong, ✉
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Arya JK, Kumar R, Singh A, Srivastava P, Yadawa AK, Rizvi SI. Acarbose, an α-Glucosidase Inhibitor, Maintains Altered Redox Homeostasis During Aging by Targeting Glucose Metabolism in Rat Erythrocytes. Rejuvenation Res 2023; 26:21-31. [PMID: 36524249 DOI: 10.1089/rej.2022.0032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
Increasing age is the single largest risk factor for a variety of chronic illnesses. As a result, improving the capability to target the aging process leads to an increased health span. A lack of appropriate glucoregulatory control is a recurring issue associated with aging and chronic illness, even though many longevity therapies result in the preservation of glucoregulatory control. In this study, we suggest that targeting glucose metabolism to improve regulatory control can help slow the aging process. Male Wistar rats, both young (age 4 months) and old (age 24 months), were given acarbose (ACA) (30 mg/kg b.w.) for 6 weeks. An array of oxidative stress indicators was assessed after the treatment period, including plasma antioxidant capacity as determined by the ferric reducing ability of plasma (FRAP), reactive oxygen species (ROS), lipid peroxidation (malondialdehyde [MDA]), reduced glutathione (GSH), total plasma thiol (sulfhydryl [SH]), plasma membrane redox system (PMRS), protein carbonyl (PCO), advanced oxidation protein products (AOPPs), advanced glycation end products (AGEs), and sialic acid (SA) in control and treated groups. When compared with controls, ACA administration increased FRAP, GSH, SH, and PMRS activities in both age groups. The treated groups, on the contrary, showed substantial decreases in ROS, MDA, PCO, AOPP, AGE, and SA levels. The effect of ACA on almost all parameters was more evident in old-age rats. ACA significantly increased PMRS activity in young rats; here the effect was less prominent in old rats. Our data support the restoration of antioxidant levels in older rats after short-term ACA treatment. The findings corroborate the potential role of ACA as a putative calorie restriction mimetic.
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Affiliation(s)
- Jitendra Kumar Arya
- Department of Biochemistry, University of Allahabad, Allahabad, Uttar Pradesh, India
| | - Raushan Kumar
- Department of Biochemistry, University of Allahabad, Allahabad, Uttar Pradesh, India
| | - Akanksha Singh
- Department of Biochemistry, University of Allahabad, Allahabad, Uttar Pradesh, India
| | - Parisha Srivastava
- Department of Biochemistry, University of Allahabad, Allahabad, Uttar Pradesh, India
| | - Arun Kumar Yadawa
- Department of Biochemistry, University of Allahabad, Allahabad, Uttar Pradesh, India
| | - Syed Ibrahim Rizvi
- Department of Biochemistry, University of Allahabad, Allahabad, Uttar Pradesh, India
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Kim H, Noh M, Zhang H, Kim Y, Park S, Park J, Kwon YG. Long-term administration of CU06-1004 ameliorates cerebrovascular aging and BBB injury in aging mouse model. Fluids Barriers CNS 2023; 20:9. [PMID: 36726154 PMCID: PMC9893613 DOI: 10.1186/s12987-023-00410-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2022] [Accepted: 01/23/2023] [Indexed: 02/03/2023] Open
Abstract
BACKGROUND Age-related changes in the cerebrovasculature, including blood-brain barrier (BBB) disruption and vascular dementia, are emerging as potential risks for many neurodegenerative diseases. Therefore, the endothelial cells that constitute the cerebrovasculature may play key roles in preventing brain injury. Our previous study showed that CU06-1004, an endothelial cell dysfunction blocker, prevented vascular leakage, enhanced vascular integrity in ischemic reperfusion injury, and promoted the normalization of tumor vasculature. Here, we evaluated the effects of CU06-1004 on age-related cerebrovascular functional decline in the aged mouse brain. RESULTS In this study, we investigated the protective effects of CU06-1004 against oxidative stress-induced damage in human brain microvascular endothelial cells (HBMECs). HBMECs were treated with hydrogen peroxide (H2O2) to establish an oxidative stress-induced model of cellular injury. Compared with H2O2 treatment alone, pretreatment of HBMECs with CU06-1004 considerably reduced oxidative stress-induced cytotoxicity, reactive oxygen species generation, senescence-associated β-galactosidase activity, senescence marker expression, and the expression levels of inflammatory proteins. Based on the observed cytoprotective effects of CU06-1004 in HBMECs, we examined whether CU06-1004 displayed protective effects against cerebrovascular aging in mice. Long-term administration of CU06-1004 alleviated age-associated cerebral microvascular rarefaction and cerebrovascular senescence in the aged mouse brain. CU06-1004 supplementation also reduced the extravasation of plasma IgG by improving BBB integrity in the aged mouse brain, associated with reductions in neuronal injury. A series of behavioral tests also revealed improved motor and cognitive functions in aged mice that received long-term CU06-1004 administration. CONCLUSIONS These findings suggest that CU06-1004 may represent a promising therapeutic approach for delaying age-related cerebrovascular impairment and improving cognitive function in old age.
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Affiliation(s)
- Hyejeong Kim
- grid.15444.300000 0004 0470 5454Department of Biochemistry, College of Life Science and Biotechnology, Yonsei University, Seoul, 03722 Korea
| | - Minyoung Noh
- grid.15444.300000 0004 0470 5454Department of Biochemistry, College of Life Science and Biotechnology, Yonsei University, Seoul, 03722 Korea
| | | | - Yeomyeong Kim
- grid.15444.300000 0004 0470 5454Department of Biochemistry, College of Life Science and Biotechnology, Yonsei University, Seoul, 03722 Korea
| | - Songyi Park
- grid.15444.300000 0004 0470 5454Department of Biochemistry, College of Life Science and Biotechnology, Yonsei University, Seoul, 03722 Korea
| | - Jeongeun Park
- grid.15444.300000 0004 0470 5454Department of Biochemistry, College of Life Science and Biotechnology, Yonsei University, Seoul, 03722 Korea
| | - Young-Guen Kwon
- grid.15444.300000 0004 0470 5454Department of Biochemistry, College of Life Science and Biotechnology, Yonsei University, Seoul, 03722 Korea
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Farhadi F, Rajagopal JR, Veziroglu EM, Abdollahi H, Shiri I, Nikpanah M, Morris MA, Zaidi H, Rahmim A, Saboury B. Multi-Scale Temporal Imaging: From Micro- and Meso- to Macro-scale-time Nuclear Medicine. PET Clin 2023; 18:135-148. [DOI: 10.1016/j.cpet.2022.09.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Draganova-Filipova M, Bojilova V, Zagorchev P. Alzheimer's disease: the hypotheses, known and unknown connections between UV-radiation, mtDNA haplotypes and life span - a review. Folia Med (Plovdiv) 2022; 64:878-883. [PMID: 36876565 DOI: 10.3897/folmed.64.e68268] [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: 05/04/2021] [Accepted: 08/03/2021] [Indexed: 01/01/2023] Open
Abstract
Alzheimer's disease (AD) is the most common neurodegenerative disease with controversial etiology. One theory claims that AD is due to brain aging affecting mainly the functions of mitochondria, therefore, the factors leading to mitochondrial ageing should lead to the development of Alzheimer's disease. Another theory is that different mitochondrial DNA haplogroups can be predisposition for the onset of the condition. Here we focused on the possible connection between AD and UV radiation using the data on the monthly UV index in Europe, its correlation with mortality rate due to AD and mitochondrial DNA haplogroups distribution. If a link between the two theories is proved, it will mean that UV radiation is a risk factor not only for skin cancer but also for a large group of neurodegenerative diseases amongst which is the Alzheimer's disease.
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Yi W, Chen F, Zhang H, Tang P, Yuan M, Wen J, Wang S, Cai Z. Role of angiotensin II in aging. Front Aging Neurosci 2022; 14:1002138. [PMID: 36533172 PMCID: PMC9755866 DOI: 10.3389/fnagi.2022.1002138] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2022] [Accepted: 11/08/2022] [Indexed: 10/29/2023] Open
Abstract
Aging is an inevitable progressive decline in physiological organ function that increases the chance of disease and death. The renin-angiotensin system (RAS) is involved in the regulation of vasoconstriction, fluid homeostasis, cell growth, fibrosis, inflammation, and oxidative stress. In recent years, unprecedented advancement has been made in the RAS study, particularly with the observation that angiotensin II (Ang II), the central product of the RAS, plays a significant role in aging and chronic disease burden with aging. Binding to its receptors (Ang II type 1 receptor - AT1R in particular), Ang II acts as a mediator in the aging process by increasing free radical production and, consequently, mitochondrial dysfunction and telomere attrition. In this review, we examine the physiological function of the RAS and reactive oxygen species (ROS) sources in detail, highlighting how Ang II amplifies or drives mitochondrial dysfunction and telomere attrition underlying each hallmark of aging and contributes to the development of aging and age-linked diseases. Accordingly, the Ang II/AT1R pathway opens a new preventive and therapeutic direction for delaying aging and reducing the incidence of age-related diseases in the future.
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Affiliation(s)
- Wenmin Yi
- Department of Neurology, Chongqing Medical University, Chongqing, China
- Chongqing Institute Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing, China
- Chongqing School, University of Chinese Academy of Sciences, Chongqing, China
- Department of Neurology, Chongqing General Hospital, Chongqing, China
- Chongqing Key Laboratory of Neurodegenerative Diseases, Chongqing, China
| | - Fei Chen
- Department of Neurology, Chongqing Medical University, Chongqing, China
- Chongqing Institute Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing, China
- Chongqing School, University of Chinese Academy of Sciences, Chongqing, China
- Department of Neurology, Chongqing General Hospital, Chongqing, China
- Chongqing Key Laboratory of Neurodegenerative Diseases, Chongqing, China
| | - Huiji Zhang
- Department of Neurology, Chongqing Medical University, Chongqing, China
- Chongqing Institute Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing, China
- Chongqing School, University of Chinese Academy of Sciences, Chongqing, China
- Department of Neurology, Chongqing General Hospital, Chongqing, China
| | - Peng Tang
- Chongqing Institute Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing, China
- Chongqing School, University of Chinese Academy of Sciences, Chongqing, China
| | - Minghao Yuan
- Department of Neurology, Chongqing Medical University, Chongqing, China
- Chongqing Institute Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing, China
- Chongqing School, University of Chinese Academy of Sciences, Chongqing, China
- Department of Neurology, Chongqing General Hospital, Chongqing, China
- Chongqing Key Laboratory of Neurodegenerative Diseases, Chongqing, China
| | - Jie Wen
- Chongqing Key Laboratory of Neurodegenerative Diseases, Chongqing, China
- Department and Institute of Neurology, Guangdong Medical University, Zhanjiang, Guangdong, China
| | - Shengyuan Wang
- Department of Neurology, Chongqing Medical University, Chongqing, China
- Chongqing Institute Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing, China
- Chongqing School, University of Chinese Academy of Sciences, Chongqing, China
- Department of Neurology, Chongqing General Hospital, Chongqing, China
- Chongqing Key Laboratory of Neurodegenerative Diseases, Chongqing, China
| | - Zhiyou Cai
- Department of Neurology, Chongqing Medical University, Chongqing, China
- Chongqing Institute Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing, China
- Chongqing School, University of Chinese Academy of Sciences, Chongqing, China
- Department of Neurology, Chongqing General Hospital, Chongqing, China
- Chongqing Key Laboratory of Neurodegenerative Diseases, Chongqing, China
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Kang AN, Mun D, Ryu S, Jae Lee J, Oh S, Kyu Kim M, Song M, Oh S, Kim Y. Culturomic-, metagenomic-, and transcriptomic-based characterization of commensal lactic acid bacteria isolated from domestic dogs using Caenorhabditis elegans as a model for aging. J Anim Sci 2022; 100:skac323. [PMID: 36194530 PMCID: PMC9733531 DOI: 10.1093/jas/skac323] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2022] [Accepted: 10/03/2022] [Indexed: 12/15/2022] Open
Abstract
In tandem with the fast expansion of the pet-economy industry, the present aging research has been noticing the function of probiotics in extending the healthy lifetime of domestic animals. In this study, we aimed to understand the bacterial compositions of canine feces and isolating lactic acid bacteria (LAB) as commensal LAB as novel potential probiotics for the use of antiaging using Caenorhabditis elegans surrogate animal model. Under an anaerobic, culturomic, and metagenomic analysis, a total of 305 commensal LAB were isolated from diverse domestic dogs, and four strains, Lactobacillus amylolyticus, L. salivarius, Enterococcus hirae, and E. faecium, made prominence as commensal LAB by enhancing C. elegans life span and restored neuronal degeneration induced by aging by upregulating skn-1, ser-7, and odr-3, 7, 10. Importantly, whole transcriptome results and integrative network analysis revealed extensive mRNA encoding protein domains and functional pathways of naturally aging C. elegans were examined and we built the gene informatics basis. Taken together, our findings proposed that a specific gene network corresponding to the pathways differentially expressed during the aging and selected commensal LAB as potential probiotic strains could be provided beneficial effects in the aging of domestic animals by modulating the dynamics of gut microbiota.
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Affiliation(s)
- An Na Kang
- Department of Agricultural Biotechnology and Research Institute of Agriculture and Life Science, Seoul National University, Seoul 08826, Korea
| | - Daye Mun
- Department of Agricultural Biotechnology and Research Institute of Agriculture and Life Science, Seoul National University, Seoul 08826, Korea
| | - Sangdon Ryu
- Department of Agricultural Biotechnology and Research Institute of Agriculture and Life Science, Seoul National University, Seoul 08826, Korea
| | - Jeong Jae Lee
- Institute of Agricultural Science and Technology, Kyungpook National University, Daegu 41566, Korea
| | - Sejong Oh
- Division of Animal Science, Chonnam National University, Gwangju 61186, Korea
| | - Min Kyu Kim
- Division of Animal and Dairy Science, Chungnam National University, Daejeon 34134, Korea
| | - Minho Song
- Division of Animal and Dairy Science, Chungnam National University, Daejeon 34134, Korea
| | - Sangnam Oh
- Department of Functional Food and Biotechnology, Jeonju University, Jeonju 55069, Korea
| | - Younghoon Kim
- Department of Agricultural Biotechnology and Research Institute of Agriculture and Life Science, Seoul National University, Seoul 08826, Korea
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Dual stimulus-responsive core-satellite SERS nanoprobes for reactive oxygen species sensing during autophagy. Talanta 2022; 250:123712. [DOI: 10.1016/j.talanta.2022.123712] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2022] [Revised: 06/19/2022] [Accepted: 06/22/2022] [Indexed: 11/17/2022]
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Zhang W, Chen S, Jiang W, Zhang Q, Liu N, Wang Z, Li Z, Zhang D. Double-network hydrogels for biomaterials: Structure-property relationships and drug delivery. Eur Polym J 2022. [DOI: 10.1016/j.eurpolymj.2022.111807] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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De Maio M, Castellani L, Cugusi L, Cortis C, Fusco A. The Effect of a Combined Exercise Program on Postural Control and Fine Motor Skills in Parkinson's Disease: Study Design. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:15216. [PMID: 36429935 PMCID: PMC9691118 DOI: 10.3390/ijerph192215216] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/24/2022] [Revised: 11/11/2022] [Accepted: 11/17/2022] [Indexed: 06/16/2023]
Abstract
Parkinson's disease (PD) is a progressive and neurodegenerative disorder defined by physical symptoms such as hand disability and postural instability. To counteract the detrimental effects of PD, physical activity programs showed improvements in overall aspects of physical functioning. Therefore, this protocol will aim to evaluate the effect a of postural and fine motor skills training program in older adults with PD. PD individuals, with mild to moderate stage PD, aged between 65 to 80 years, will be voluntary selected from the Nursing Home Residences and Rehabilitation Centers. Subsequently, they will be randomly assigned to intervention group (PD) to receive a combined training program (postural control and fine motor skills exercises) or to the Control group (CON) to receive a stretching program. Before (PRE) and after (POST) a 12-week program both groups will perform wobble board (WB) and grooved pegboard (GPT) tests. Different performances between groups will be expected: (1) no significant differences between PD and CON group for WB and GPT test values before the beginning of the training intervention (PRE); (2) significantly better WB and GPT test values in PD subjects after the training intervention (POST) when compared to the base values (PRE); and (3) no significant differences in WB and GPT test values in CON subjects after the training intervention (POST) when compared to the base values (PRE). The findings of the present study protocol could be used for future studies investigating clinical populations, such as PD, and the effects of different rehabilitative interventions aiming to improve postural control and fine motor skills performances assessed by WB and GPT tests.
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Affiliation(s)
- Marianna De Maio
- Department of Human Sciences, Society and Health, University of Cassino and Lazio Meridionale, Viale dell’Università, 03043 Cassino, Italy
| | - Loriana Castellani
- Department of Human Sciences, Society and Health, University of Cassino and Lazio Meridionale, Viale dell’Università, 03043 Cassino, Italy
| | - Lucia Cugusi
- Department of Biomedical Sciences, University of Sassari, Viale San Pietro 43/B, 07100 Sassari, Italy
| | - Cristina Cortis
- Department of Human Sciences, Society and Health, University of Cassino and Lazio Meridionale, Viale dell’Università, 03043 Cassino, Italy
| | - Andrea Fusco
- Department of Human Sciences, Society and Health, University of Cassino and Lazio Meridionale, Viale dell’Università, 03043 Cassino, Italy
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Selenium: An Antioxidant with a Critical Role in Anti-Aging. Molecules 2022; 27:molecules27196613. [PMID: 36235150 PMCID: PMC9570904 DOI: 10.3390/molecules27196613] [Citation(s) in RCA: 53] [Impact Index Per Article: 26.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2022] [Revised: 09/28/2022] [Accepted: 10/01/2022] [Indexed: 02/08/2023] Open
Abstract
Aging is characterized by an imbalance between damage inflicted by reactive oxygen species (ROS) and the antioxidative defenses of the organism. As a significant nutritional factor, the trace element selenium (Se) may remodel gradual and spontaneous physiological changes caused by oxidative stress, potentially leading to disease prevention and healthy aging. Se is involved in improving antioxidant defense, immune functions, and metabolic homeostasis. An inadequate Se status may reduce human life expectancy by accelerating the aging process or increasing vulnerability to various disorders, including immunity dysfunction, and cancer risk. This review highlights the available studies on the effective role of Se in aging mechanisms and shows the potential clinical implications related to its consumption. The main sources of organic Se and the advantages of its nanoformulations were also discussed.
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Tian S, Zhao H, Liu J, Ma X, Zheng L, Guo H, Jiang Y. Metabolomics reveals that alcohol extract of propolis alleviates D-gal-induced skeletal muscle senescence in mice. FOOD BIOSCI 2022. [DOI: 10.1016/j.fbio.2022.101885] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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49
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Siddique YH, Naz F, Rahul, Varshney H. Comparative study of rivastigmine and galantamine on the transgenic Drosophila model of Alzheimer's disease. CURRENT RESEARCH IN PHARMACOLOGY AND DRUG DISCOVERY 2022; 3:100120. [PMID: 35992376 PMCID: PMC9389239 DOI: 10.1016/j.crphar.2022.100120] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2022] [Revised: 07/20/2022] [Accepted: 07/21/2022] [Indexed: 12/13/2022] Open
Abstract
Alzheimer's Disease (AD) is characterized as a progressive neurodegenerative disease most commonly associated with memory deficits and cognitive decline. The formation of amyloid plaques and neurofibrillary tangles are important pathological markers of AD. The accumulation of amyloid plaques and neurofibrillary tangles leads to the loss of neurons including the cholinergic neurons thus decreasing the levels of acetylcholine (a neurotransmitter). To reduce the AD symptoms cholinesterase inhibitors are widely used to decrease the hydrolysis of acetylcholine released from presynaptic neurons. In the present study we have studied the effect of rivastigmine and galantamine (commonly used cholinesterase inhibitors) on the transgenic Drosophila model of AD expressing human Aβ-42 in the neurons. The effect of similar doses of rivastigmine and galantamine (i.e. 0.1,1 and 10 mM) was studied on the climbing ability, lifespan, oxidative stress markers, caspase 9 and 3, acetylcholinesterase activity and on the formation of Aβ-42 aggregates. The results suggest that the rivastigmine is more potent in reducing the oxidative stress and improving climbing ability of AD flies. Both the drugs were found to be effective in increasing the lifespan of AD flies. Galantamine was found to be a more potent inhibitor of acetylcholinesterase compared to rivastigmine. Galantamine prevents the formation of Aβ-42 aggregates more effectively compared to rivastigmine.
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Affiliation(s)
- Yasir Hasan Siddique
- Drosophila Transgenic Laboratory, Section of Genetics, Department of Zoology, Faculty of Life Sciences, Aligarh Muslim University, Aligarh-202002, Uttar Pradesh, India
| | - Falaq Naz
- Drosophila Transgenic Laboratory, Section of Genetics, Department of Zoology, Faculty of Life Sciences, Aligarh Muslim University, Aligarh-202002, Uttar Pradesh, India
| | - Rahul
- Drosophila Transgenic Laboratory, Section of Genetics, Department of Zoology, Faculty of Life Sciences, Aligarh Muslim University, Aligarh-202002, Uttar Pradesh, India
| | - Himanshi Varshney
- Drosophila Transgenic Laboratory, Section of Genetics, Department of Zoology, Faculty of Life Sciences, Aligarh Muslim University, Aligarh-202002, Uttar Pradesh, India
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Inagaki E, Yoshimatsu S, Okano H. Accelerated neuronal aging in vitro ∼melting watch ∼. Front Aging Neurosci 2022; 14:868770. [PMID: 36016855 PMCID: PMC9397486 DOI: 10.3389/fnagi.2022.868770] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2022] [Accepted: 07/04/2022] [Indexed: 11/13/2022] Open
Abstract
In developed countries, the aging of the population and the associated increase in age-related diseases are causing major unresolved medical, social, and environmental matters. Therefore, research on aging has become one of the most important and urgent issues in life sciences. If the molecular mechanisms of the onset and progression of neurodegenerative diseases are elucidated, we can expect to develop disease-modifying methods to prevent neurodegeneration itself. Since the discovery of induced pluripotent stem cells (iPSCs), there has been an explosion of disease models using disease-specific iPSCs derived from patient-derived somatic cells. By inducing the differentiation of iPSCs into neurons, disease models that reflect the patient-derived pathology can be reproduced in culture dishes, and are playing an active role in elucidating new pathological mechanisms and as a platform for new drug discovery. At the same time, however, we are faced with a new problem: how to recapitulate aging in culture dishes. It has been pointed out that cells differentiated from pluripotent stem cells are juvenile, retain embryonic traits, and may not be fully mature. Therefore, attempts are being made to induce cell maturation, senescence, and stress signals through culture conditions. It has also been reported that direct conversion of fibroblasts into neurons can reproduce human neurons with an aged phenotype. Here, we outline some state-of-the-art insights into models of neuronal aging in vitro. New frontiers in which stem cells and methods for inducing differentiation of tissue regeneration can be applied to aging research are just now approaching, and we need to keep a close eye on them. These models are forefront and intended to advance our knowledge of the molecular mechanisms of aging and contribute to the development of novel therapies for human neurodegenerative diseases associated with aging.
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Affiliation(s)
- Emi Inagaki
- Department of Physiology, Keio University School of Medicine, Tokyo, Japan
- Department of Ophthalmology, Keio University School of Medicine, Tokyo, Japan
- Japanese Society for the Promotion of Science (JSPS), Tokyo, Japan
| | - Sho Yoshimatsu
- Department of Physiology, Keio University School of Medicine, Tokyo, Japan
- Department of Ophthalmology, Keio University School of Medicine, Tokyo, Japan
| | - Hideyuki Okano
- Department of Physiology, Keio University School of Medicine, Tokyo, Japan
- *Correspondence: Hideyuki Okano,
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