scholarly journals Associations between Coenzyme Q10 Status, Oxidative Stress, and Muscle Strength and Endurance in Patients with Osteoarthritis

Antioxidants ◽  
2020 ◽  
Vol 9 (12) ◽  
pp. 1275
Author(s):  
Po-Sheng Chang ◽  
Chi-Hua Yen ◽  
Yu-Yun Huang ◽  
Ching-Ju Chiu ◽  
Ping-Ting Lin
Keyword(s):  
Oxidative Stress ◽  
Muscle Strength ◽  
Antioxidant Capacity ◽  
Muscle Mass ◽  
Coenzyme Q10 ◽  
Muscle Function ◽  
Protein Carbonyl ◽  
Elderly Subjects ◽  
Muscle Endurance ◽  
Age Related

Osteoarthritis (OA) causes oxidative stress. Coenzyme Q10 is an antioxidant that participates in energy production in the human body. The purpose of this study was to investigate the relationships among coenzyme Q10 status, oxidative stress, antioxidant capacity, and muscle function in patients with OA. This case-control study recruited 100 patients with OA and 100 without OA. The coenzyme Q10 status, oxidative stress, antioxidant capacity, muscle mass (by dual-energy X-ray absorptiometry), muscle strength (hand-grip and leg-back strength), and muscle endurance (dumbbell curls, gait speed, chair-stand test, and short physical performance battery) were measured. The results showed that both OA and elderly subjects had a low coenzyme Q10 status (<0.5 μM). Oxidative stress was significantly negatively correlated with muscle function (protein carbonyl, p < 0.05). Coenzyme Q10 level was positively associated with antioxidant capacity, muscle mass, muscle strength and muscle endurance in patients with OA (p < 0.05). Since OA is an age-related disease, coenzyme Q10 may be consumed by oxidative stress and thereby affect muscle function. Raising coenzyme Q10 in patients with OA could be suggested, which may benefit their antioxidant capacity and muscle function.

scholarly journals A Systematic Review and Meta-analysis of Effect of Probiotic Supplementation on Age-related Sarcopenia in Elderly Adults

2021 ◽  
Author(s):  
Sahar Saraf-Bank ◽  
Fatemeh Navab ◽  
Mohammad Hossein Rouhan ◽  
Zahra Hajhashemy ◽  
Nafiseh Shokri-mashhadi
Keyword(s):  
Muscle Strength ◽  
Muscle Mass ◽  
Body Mass ◽  
Positive Impact ◽  
Meta Analysis ◽  
Cochrane Library ◽  
Elderly Subjects ◽  
Probiotic Supplementation ◽  
Anthropometric Indices ◽  
Age Related

Abstract Background: Several clinical studies emphasized the role of bio-diversities of gut microbiota in age-related disorders. Nevertheless, the effect of probiotic administration on sarcopenia indices are unclear. This meta-analysis aimed to investigate the effect of probiotic administration on muscle strength, muscle mass, and muscle function. Methods: We assessed all interventional studies through different electronic databases including PubMed, Scopus, ISI –Web of Science, and Cochrane library using defined keywords from inception to Jun 2021. Studies that investigated the effect of probiotic administration on at least one of the components of sarcopenia or anthropometric indices versus non- probiotics in old adults (>55 years) were included. Results: The initially overall effect of meta-analysis on 1393 participants declared a null effect of probiotic supplementation on main outcomes, including muscle mass (WMD: -0.05, 95% CI: -1.54, 1.43; I-square: 0.0%, P=0.985), and muscle strength (WMD: 0.7, 95% CI: -0.01, 1.40; I-square: 76.8%, P=0.005). Subgroup analysis showed that administration of probiotic supplementation for more than 12 weeks significantly increased muscle strength (WMD: 1.15, 95% CI: 0.86, 1.43; I-square: 0.0%, P=0.679). However, probiotic supplementation had no effect on anthropometric indices, including body mass and body mass index, (WMD: -0.05, 95% CI:-2.57, 1.56; I-square: 0.0%, P=0.976) and (WMD: 0.08, 95% CI:-0.16, 0.32; I-square: 0.0%, P=0.718), respectively. Conclusion: This study confirmed the positive impact of probiotic supplementation on the muscle strength (based on the last definitions by EWGSOP), in particular, probiotic administration for more than 12 weeks. More clinical trials on sarcopenic elderly subjects are wanted to confirm our findings.

scholarly journals Gait disturbances and muscle dysfunction in fibroblast growth factor 2 knockout mice

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
C. Homer-Bouthiette ◽  
L. Xiao ◽  
Marja M. Hurley
Keyword(s):  
Skeletal Muscle ◽  
Growth Factor ◽  
Muscle Strength ◽  
Fibroblast Growth Factor ◽  
Muscle Function ◽  
Fibroblast Growth Factor 2 ◽  
Fibroblast Growth ◽  
Skeletal Muscle Function ◽  
Age Related ◽  
Gait Disturbances

AbstractFibroblast growth factor 2 (FGF2) is important in musculoskeletal homeostasis, therefore the impact of reduction or Fgf2 knockout on skeletal muscle function and phenotype was determined. Gait analysis as well as muscle strength testing in young and old WT and Fgf2KO demonstrated age-related gait disturbances and reduction in muscle strength that were exacerbated in the KO condition. Fgf2 mRNA and protein were significantly decreased in skeletal muscle of old WT compared with young WT. Muscle fiber cross-sectional area was significantly reduced with increased fibrosis and inflammatory infiltrates in old WT and Fgf2KO vs. young WT. Inflammatory cells were further significantly increased in old Fgf2KO compared with old WT. Lipid-related genes and intramuscular fat was increased in old WT and old Fgf2KO with a further increase in fibro-adipocytes in old Fgf2KO compared with old WT. Impaired FGF signaling including Increased β-Klotho, Fgf21 mRNA, FGF21 protein, phosphorylated FGF receptors 1 and 3, was observed in old WT and old Fgf2KO. MAPK/ ERK1/2 was significantly increased in young and old Fgf2KO. We conclude that Fgf2KO, age-related decreased FGF2 in WT mice, and increased FGF21 in the setting of impaired Fgf2 expression likely contribute to impaired skeletal muscle function and sarcopenia in mice.

scholarly journals Coenzyme Q10, Ageing and the Nervous System: An Overview

Antioxidants ◽  
2021 ◽  
Vol 11 (1) ◽  
pp. 2
Author(s):  
David Mantle ◽  
Robert A. Heaton ◽  
Iain P. Hargreaves
Keyword(s):  
Oxidative Stress ◽  
Coenzyme Q10 ◽  
Neurological Disorders ◽  
Neurological Disease ◽  
Age Related ◽  
Increased Risk ◽  
Potential Therapeutic Role ◽  
Ageing Brain ◽  
And Oxidative Stress

The ageing brain is characterised by changes at the physical, histological, biochemical and physiological levels. This ageing process is associated with an increased risk of developing a number of neurological disorders, notably Alzheimer’s disease and Parkinson’s disease. There is evidence that mitochondrial dysfunction and oxidative stress play a key role in the pathogenesis of such disorders. In this article, we review the potential therapeutic role in these age-related neurological disorders of supplementary coenzyme Q10, a vitamin-like substance of vital importance for normal mitochondrial function and as an antioxidant. This review is concerned primarily with studies in humans rather than in vitro studies or studies in animal models of neurological disease. In particular, the reasons why the outcomes of clinical trials supplementing coenzyme Q10 in these neurological disorders is discussed.

The Effects of Aging and Training on Skeletal Muscle

1998 ◽  
Vol 26 (4) ◽  
pp. 598-602 ◽  
Author(s):  
Donald T. Kirkendall ◽  
William E. Garrett
Keyword(s):  
Skeletal Muscle ◽  
Muscle Mass ◽  
Muscle Function ◽  
Cellular Level ◽  
Type I ◽  
Loss Of Function ◽  
Skeletal Muscle Function ◽  
Cross Sectional ◽  
Age Related ◽  
General Slowing

Aging results in a gradual loss of muscle function, and there are predictable age-related alterations in skeletal muscle function. The typical adult will lose muscle mass with age; the loss varies according to sex and the level of muscle activity. At the cellular level, muscles loose both cross-sectional area and fiber numbers, with type II muscle fibers being the most affected by aging. Some denervation of fibers may occur. The combination of these factors leads to an increased percentage of type I fibers in older adults. Metabolically, the glycolytic enzymes seem to be little affected by aging, but the aerobic enzymes appear to decline with age. Aged skeletal muscle produces less force and there is a general “slowing” of the mechanical characteristics of muscle. However, neither reduced muscle demand nor the subsequent loss of function is inevitable with aging. These losses can be minimized or even reversed with training. Endurance training can improve the aerobic capacity of muscle, and resistance training can improve central nervous system recruitment of muscle and increase muscle mass. Therefore, physical activity throughout life is encouraged to prevent much of the age-related impact on skeletal muscle.

scholarly journals NEUROMUSCULAR CHANGES WITH AGING AND SARCOPENIA

2018 ◽  
pp. 1-3
Author(s):  
B.C. Clark
Keyword(s):  
Skeletal Muscle ◽  
Muscle Mass ◽  
Muscle Function ◽  
Skeletal Muscle Mass ◽  
The Past ◽  
Conceptual Definition ◽  
Age Related ◽  
Per Se ◽  
Definition Of ◽  
And Function

Sarcopenia was originally conceptualized as the age-related loss of skeletal muscle mass. Over the ensuing decades, the conceptual definition of sarcopenia has changed to represent a condition in older adults that is characterized by declining muscle mass and function, with “function” most commonly conceived as muscle weakness and/or impaired physical performance (e.g., slow gait speed). Findings over the past 15-years, however, have demonstrated that changes in grip and leg extensor strength are not primarily due to muscle atrophy per se, and that to a large extent, are reflective of declines in the integrity of the nervous system. This article briefly summarizes findings relating to the complex neuromuscular mechanisms that contribute to reductions in muscle function associated with advancing age, and the implications of these findings on the development of effective therapies.

scholarly journals Age-related decline in muscle mass and muscle function in Flemish Caucasians: a 10-year follow-up

AGE ◽  
2016 ◽  
Vol 38 (2) ◽  
Author(s):  
Ruben Charlier ◽  
Sara Knaeps ◽  
Evelien Mertens ◽  
Evelien Van Roie ◽  
Christophe Delecluse ◽  
...  
Keyword(s):  
Muscle Mass ◽  
Muscle Function ◽  
Age Related

scholarly journals Method validation to assess in vivo cellular and subcellular changes in buccal mucosa cells and saliva following CBCT examinations

2019 ◽  
Vol 48 (6) ◽  
pp. 20180428 ◽  
Author(s):  
Niels Belmans ◽  
Liese Gilles ◽  
Piroska Virag ◽  
Mihaela Hedesiu ◽  
Benjamin Salmon ◽  
...  
Keyword(s):  
Oxidative Stress ◽  
Antioxidant Capacity ◽  
Total Antioxidant Capacity ◽  
Cone Beam Ct ◽  
Immunocytochemical Staining ◽  
Dna Double Strand Breaks ◽  
Age Related ◽  
Dna Dsbs ◽  
Total Antioxidant

Objectives: Cone-beam CT (CBCT) is a medical imaging technique used in dental medicine. However, there are no conclusive data available indicating that exposure to X-ray doses used by CBCT are harmless. We aim, for the first time, to characterize the potential age-dependent cellular and subcellular effects related to exposure to CBCT imaging. Current objective is to describe and validate the protocol for characterization of cellular and subcellular changes after diagnostic CBCT. Methods: Development and validation of a dedicated two-part protocol: 1) assessing DNA double strand breaks (DSBs) in buccal mucosal (BM) cells and 2) oxidative stress measurements in saliva samples. BM cells and saliva samples are collected prior to and 0.5 h after CBCT examination. BM cells are also collected 24 h after CBCT examination. DNA DSBs are monitored in BM cells via immunocytochemical staining for γH2AX and 53BP1. 8-oxo-7,8-dihydro-2’-deoxyguanosine (8-oxo-dG) and total antioxidant capacity are measured in saliva to assess oxidative damage. Results: Validation experiments show that sufficient BM cells are collected (97.1 ± 1.4 %) and that γH2AX/53BP1 foci can be detected before and after CBCT examination. Collection and analysis of saliva samples, either sham exposed or exposed to IR, show that changes in 8-oxo-dG and total antioxidant capacity can be detected in saliva samples after CBCT examination. Conclusion: The DIMITRA Research Group presents a two-part protocol to analyze potential age-related biological differences following CBCT examinations. This protocol was validated for collecting BM cells and saliva and for analyzing these samples for DNA DSBs and oxidative stress markers, respectively.

scholarly journals Grape Seed Proanthocyanidin Extract Prevents Ovarian Aging by Inhibiting Oxidative Stress in the Hens

2018 ◽  
Vol 2018 ◽  
pp. 1-16 ◽  
Author(s):  
Xingting Liu ◽  
Xin Lin ◽  
Yuling Mi ◽  
Jian Li ◽  
Caiqiao Zhang
Keyword(s):  
Oxidative Stress ◽  
Antioxidant Capacity ◽  
Chromatin Condensation ◽  
Natural Aging ◽  
Grape Seed ◽  
Protective Effects ◽  
Ovarian Aging ◽  
Grape Seed Proanthocyanidin Extract ◽  
Age Related ◽  
Grape Seed Proanthocyanidin

Oxidative stress is an important inducement in ovarian aging which results in fecundity decline in human and diverse animals. As a potent antioxidant, grape seed proanthocyanidin extract (GSPE) was investigated to ameliorate chicken ovarian aging in this study. Firstly, ovarian antioxidant capacity of hens at different ages (90, 150, 280, and 580 days old) was compared to elucidate its age-related changes. Subsequently, a D-gal-induced (2.5 mg/mL) aging ovarian model was established and the cultured ovarian tissues were treated with GSPE at 5 μg/mL for 72 h to evaluate the putative attenuating effects of GSPE on ovarian aging. Meanwhile, ovaries of D280 (young) and D580 (old) were treated with GSPE for 72 h in culture to verify the protective effects of GSPE on natural aging ovary. The results showed that GSPE could rescue the antioxidant capacity decline by increasing the antioxidase activities and their gene expression in either D-gal-induced or natural aging ovaries. Moreover, GSPE could maintain the homeostasis between cell proliferation and apoptosis in the D-gal-induced and natural aging ovaries, as well as alleviate D-gal-induced nucleus chromatin condensation in the ovarian granulosa cells. In conclusion, GSPE treatment can effectively prevent the ovarian aging process in hens by reducing oxidative stress.

scholarly journals Preserved Capacity for Adaptations in Strength and Muscle Regulatory Factors in Elderly in Response to Resistance Exercise Training and Deconditioning

2020 ◽  
Vol 9 (7) ◽  
pp. 2188 ◽  
Author(s):  
Andreas Mæchel Fritzen ◽  
Frank D. Thøgersen ◽  
Khaled Abdul Nasser Qadri ◽  
Thomas Krag ◽  
Marie-Louise Sveen ◽  
...  
Keyword(s):  
Resistance Training ◽  
Muscle Strength ◽  
Exercise Training ◽  
Resistance Exercise ◽  
Muscle Mass ◽  
Myogenic Regulatory Factors ◽  
Resistance Exercise Training ◽  
Regulatory Factors ◽  
Age Related ◽  
Muscle Regulatory Factors

Aging is related to an inevitable loss of muscle mass and strength. The mechanisms behind age-related loss of muscle tissue are not fully understood but may, among other things, be induced by age-related differences in myogenic regulatory factors. Resistance exercise training and deconditioning offers a model to investigate differences in myogenic regulatory factors that may be important for age-related loss of muscle mass and strength. Nine elderly (82 ± 7 years old) and nine young, healthy persons (22 ± 2 years old) participated in the study. Exercise consisted of six weeks of resistance training of the quadriceps muscle followed by eight weeks of deconditioning. Muscle biopsy samples before and after training and during the deconditioning period were analyzed for MyoD, myogenin, insulin-like growth-factor I receptor, activin receptor IIB, smad2, porin, and citrate synthase. Muscle strength improved with resistance training by 78% (95.0 ± 22.0 kg) in the elderly to a similar extent as in the young participants (83.5%; 178.2 ± 44.2 kg) and returned to baseline in both groups after eight weeks of deconditioning. No difference was seen in expression of muscle regulatory factors between elderly and young in response to exercise training and deconditioning. In conclusion, the capacity to gain muscle strength with resistance exercise training in elderly was not impaired, highlighting this as a potent tool to combat age-related loss of muscle function, possibly due to preserved regulation of myogenic factors in elderly compared with young muscle.

scholarly journals Ferula asafoetida Linn. is effective for early functional recovery following mechanically induced insult to the sciatic nerve of a mouse model

2020 ◽  
Vol 19 (9) ◽  
pp. 1903-1910
Author(s):  
Syed Kashif Shahid Kamran ◽  
Azhar Rasul ◽  
Haseeb Anwar ◽  
Shahzad Irfan ◽  
Khizar Sami Ullah ◽  
...  
Keyword(s):  
Oxidative Stress ◽  
Sciatic Nerve ◽  
Antioxidant Capacity ◽  
Grip Strength ◽  
Nerve Injury ◽  
Muscle Mass ◽  
Motor Function ◽  
Sciatic Nerve Injury ◽  
Sensory Function ◽  
Ferula Asafoetida

Purpose: To evaluate the effect of Ferula asafoetida (oleo gum resin powder) on sensory and motor functions retrieval on an induced sciatic nerve injury in a mouse model.Methods: A mechanical crush was inserted in the sciatic nerve of all the experimental mice after acclimatization. The mice were allocated to four groups; one normal chow group (control, n = 7) and three Ferula asafoetida chow groups (each n = 7) of different doses (50, 100 and 200 mg/kg). Muscle grip strength, muscle mass, and sciatic functional index were measured to evaluate the motor function regain, while sensory function regain was assessed by hot plate test. Oxidative stress and glycemic levels were measured by biochemical assays.Results: The findings of this study indicate that Ferula asafoetida 200 mg/kg has a highly significant (p≤ 0.001) ameliorating effect in terms of improved grip strength (77.7 ± 5.4 % for 200 mg/kg vs. 46 ± 5.1 % for control), reversal of SFI towards normal ( -34 ± 8.1 for 200 mg/kg group vs. –61 ± 6.1 for control), decrease in paw withdrawal latency (7.10 ± 0.06 s for 200 mg/kg group vs. 15 ± 0.5 s for control) on day 12 post-injury, as well as restoration of skeletal muscle mass towards normal. Interestingly, F. asafoetida chow 50 mg/kg and 100 mg/kg groups also impacted significant (p < 0.01) improvement in the ameliorative effect. However, the differences among all treatment groups in ameliorating recovery were not significant (p > 0.05). Moreover, comparatively improved (p < 0.0001) total antioxidant capacity along with reduced total oxidant status (p = 0.01) in the Ferula asafoetida chow (200 mg/kg) group, indicate the antioxidative effect of this plant. Furthermore, the treated mice (200 mg/kg) also expressedan improved glycemic level (p = 0.0005).Conclusion: Ferula asafoetida supplementation helps to accelerate both sensory and motor function retrieval following sciatic nerve injury. This  improvement is thought to be correlated with the antioxidant capacity of the plant. However, further investigations are required to identify the therapeutic principles responsible for the observed actions. Keywords: Sciatic nerve injury, Ferula asafoetida, Function recovery, Oxidative stress, Biochemical analysis

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