1
|
Zhang K, Han Y, Gu Z, Hou Z, Yu X, Gao M, Cai T, Gao Y, Xie J, Gu F, Chen J, Chen B, Liu T. Association between dietary vitamin E intake and cognitive decline among old American: National Health and Nutrition Examination Survey. Eur Geriatr Med 2023; 14:1027-1036. [PMID: 37615806 DOI: 10.1007/s41999-023-00814-w] [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: 04/07/2023] [Accepted: 06/05/2023] [Indexed: 08/25/2023]
Abstract
PURPOSE Numerous studies have reported that vitamin E plays a key role in nervous system development and neurotransmitter production. This study aimed to investigate changes in vitamin E intake in older adults with low cognitive performance using NHANES. METHODS In this cross-sectional study, we examined a sample of 2255 American adults aged 60 and over between 2011 and 2014. We collected dietary data by averaging two recalls for dietary use to determine vitamin E intake. We assessed cognitive function using five tests and analyzed the association between these variables using a multivariate logistic regression model. RESULTS A total of 2255 participants aged ≥ 60 years from the National Health and Nutrition Examination Survey (NHANES) for the 2011-2014 cycle were included in the analysis. Vitamin E intake was negatively associated with cognitive function. In the Z test, with each 1 mg/day increase in dietary intake of vitamin E, there was a 6% decrease in the correlation with cognitive impairment (OR = 0.94, 95% CI 0.91-0.97) in the fully fitted model (OR = 0.94, 95% CI 0.91-0.97). These findings remained consistent when analyzing the exposure as a categorical variable. In comparison to Q1, Q4 showed a 53% reduction in the incidence of cognitive impairment in the Z test (OR = 0.47, 95% CI 0.33-0.67).No significant statistical interaction between the variables was found. CONCLUSION An increased dietary intake of vitamin E has been associated with decreased cognitive impairment in individuals over 60 years old. The dose-response curve showed an L-shaped association between dietary vitamin E intake and cognitive decline in US adults, with an inflection point of approximately 9.296 mg/day.
Collapse
Affiliation(s)
- Kai Zhang
- The Second Hospital, Jilin University, No. 218, Ziqiang Street, Changchun, Jilin, China.
| | - Yu Han
- Department of Ophthalmology, First Hospital of Jilin University, No.71 Xinmin Street, Changchun, Jilin, China
| | - Zhaoxuan Gu
- The Second Hospital, Jilin University, No. 218, Ziqiang Street, Changchun, Jilin, China
| | - Zhengyan Hou
- Bethune Second School of Clinical Medicine, Jilin University, No.828 Xinmin Street, Changchun, Jilin, China
| | - Xiaoqi Yu
- Bethune Second School of Clinical Medicine, Jilin University, No.828 Xinmin Street, Changchun, Jilin, China
| | - Min Gao
- Bethune Second School of Clinical Medicine, Jilin University, No.828 Xinmin Street, Changchun, Jilin, China
| | - Tianyi Cai
- Bethune Second School of Clinical Medicine, Jilin University, No.828 Xinmin Street, Changchun, Jilin, China
| | - Yafang Gao
- Bethune Second School of Clinical Medicine, Jilin University, No.828 Xinmin Street, Changchun, Jilin, China
| | - Jinyu Xie
- Bethune Second School of Clinical Medicine, Jilin University, No.828 Xinmin Street, Changchun, Jilin, China
| | - Fangming Gu
- Bethune Second School of Clinical Medicine, Jilin University, No.828 Xinmin Street, Changchun, Jilin, China
| | - Jianguo Chen
- Bethune First College of Clinical Medicine, Jilin University, No.828 Xinmin Street, Changchun, Jilin, China
| | - Bowen Chen
- Bethune First College of Clinical Medicine, Jilin University, No.828 Xinmin Street, Changchun, Jilin, China
| | - Tianzhou Liu
- Department of Gastrointestinal Nutrition and Hernia Surgery, The Second Hospital, Jilin University, No. 218, Ziqiang Street, Changchun, Jilin, China.
| |
Collapse
|
2
|
Chali SEN, Khanbabaei R, Juybari AAD, Fatahi E, Kalai RB. Coenzyme Q10 treatment and diazinon exposure in parental male rats: effects of the exposure on their neonatal brains. Toxicol Res (Camb) 2023; 12:264-269. [PMID: 37125340 PMCID: PMC10141774 DOI: 10.1093/toxres/tfad012] [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: 09/13/2022] [Revised: 11/23/2022] [Accepted: 01/26/2023] [Indexed: 03/14/2023] Open
Abstract
Prenatal acute and chronic exposure to organophosphorus pesticides may evoke physical and behavioral impairments in offspring development. However, the mechanism of antioxidant consumption repair to cure these impairments remains unclear. This study aimed to investigate the protective effects of COQ10 against DZN toxicity by measuring Malondialdehyde (MDA) level, superoxide dismutase (SOD) activity, the expression of MH2A, DNMT1, H2AZ, and HDAC3, and the histopathology in the brain of neonatal Wistar albino rats whose male parents were exposed to DZN and COQ10. The results showed that COQ10 could significantly decrease MDA level, histopathological alteration, and expression of DNMT1 and HDAC3 in the neonatal brain (P < 0.05). Also, an increase in SOD activity and expression of MH2A and H2AZ were observed in the neonatal brain of this group (P < 0.05). These investigations suggest that COQ10 can reduce the effects of DZN on neuronal oxidative stress and its damage to the neonatal brain.
Collapse
Affiliation(s)
- Sima Ebadi Naft Chali
- Department of Biology, Qaemshahr Branch, Islamic Azad University, Qaemshahr 3149968111, Iran
| | - Ramzan Khanbabaei
- Department of Biology, Qaemshahr Branch, Islamic Azad University, Qaemshahr 3149968111, Iran
| | | | - Esmail Fatahi
- Department of Biology, Qaemshahr Branch, Islamic Azad University, Qaemshahr 3149968111, Iran
| | - Roya Bisheh Kalai
- Department of Biology, Qaemshahr Branch, Islamic Azad University, Qaemshahr 3149968111, Iran
| |
Collapse
|
3
|
Jiménez-Jiménez FJ, Alonso-Navarro H, García-Martín E, Agúndez JAG. Coenzyme Q10 and Dementia: A Systematic Review. Antioxidants (Basel) 2023; 12:antiox12020533. [PMID: 36830090 PMCID: PMC9952341 DOI: 10.3390/antiox12020533] [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: 01/27/2023] [Revised: 02/09/2023] [Accepted: 02/17/2023] [Indexed: 02/22/2023] Open
Abstract
It is well known that coenzyme Q10 (CoQ10) has important antioxidant properties. Because one of the main mechanisms involved in the pathogenesis of Alzheimer's disease (AD) and other neurodegenerative diseases is oxidative stress, analysis of the concentrations of CoQ10 in different tissues of AD patients and with other dementia syndromes and the possible therapeutic role of CoQ10 in AD have been addressed in several studies. We performed a systematic review and a meta-analysis of these studies measuring tissue CoQ10 levels in patients with dementia and controls which showed that, compared with controls, AD patients had similar serum/plasma CoQ10 levels. We also revised the possible therapeutic effects of CoQ10 in experimental models of AD and other dementias (which showed important neuroprotective effects of coenzyme Q10) and in humans with AD, other dementias, and mild cognitive impairment (with inconclusive results). The potential role of CoQ10 treatment in AD and in improving memory in aged rodents shown in experimental models deserves future studies in patients with AD, other causes of dementia, and mild cognitive impairment.
Collapse
Affiliation(s)
- Félix Javier Jiménez-Jiménez
- Section of Neurology, Hospital Universitario del Sureste, Arganda del Rey, Ronda del Sur 10, E-28500 Arganda del Rey, Spain
- Correspondence: or ; Tel.: +34-636-968395; Fax: +34-91-328-0704
| | - Hortensia Alonso-Navarro
- Section of Neurology, Hospital Universitario del Sureste, Arganda del Rey, Ronda del Sur 10, E-28500 Arganda del Rey, Spain
| | - Elena García-Martín
- University Institute of Molecular Pathology Biomarkers, Universidad de Extremadura, E-10071 Cáceres, Spain
| | - José A. G. Agúndez
- University Institute of Molecular Pathology Biomarkers, Universidad de Extremadura, E-10071 Cáceres, Spain
| |
Collapse
|
4
|
Fernández-Portero C, Amián JG, Bella RDL, López-Lluch G, Alarcón D. Coenzyme Q10 Levels Associated With Cognitive Functioning and Executive Function in Older Adults. J Gerontol A Biol Sci Med Sci 2023; 78:1-8. [PMID: 35908233 DOI: 10.1093/gerona/glac152] [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: 05/10/2022] [Indexed: 01/31/2023] Open
Abstract
Brain deterioration with age is associated with inflammation and oxidative stress that result in structural and functional changes. Recent studies have indicated that coenzyme Q10 (CoQ10) is associated with neurological oxidative stress and cognitive impairment. Studies with older people have shown a relationship between neurodegenerative diseases and CoQ10 levels. However, no studies have analyzed the relationship between CoQ10 and cognitive functioning in older adults. The aim of this study was to analyze the association between CoQ10 and cognitive functioning in an older adult sample, controlling for other factors that may influence aging, such as the level of physical activity and nutritional status. The sample consisted of 64 older adults aged 65-99 years (76.67 ± 8.16 years), among whom 48 were women (75%). The participants were recruited among those who attended community centers to voluntarily participate in leisure activities. According to previous studies, physical activity and nutritional status are positively associated with cognitive functioning. However, the main finding of this study was that plasma CoQ10, controlling for other measures, was significantly associated with cognitive functioning and executive function. The current findings suggest that a decline in cognitive capacities may be related to reduced antioxidant defenses, as reflected by low CoQ10 levels in older adults.
Collapse
Affiliation(s)
- Cristina Fernández-Portero
- Department of Social Anthropology, Psychology and Public Health, Pablo de Olavide University, Seville, Spain
| | - Josué G Amián
- Department of Social Anthropology, Psychology and Public Health, Pablo de Olavide University, Seville, Spain
| | - Rocío de la Bella
- Department of Physiology, Anatomy and Cell Biology, Andalusian Centre of Developmental Biology, Universidad Pablo de Olavide, Seville, Spain
| | - Guillermo López-Lluch
- Department of Physiology, Anatomy and Cell Biology, Andalusian Centre of Developmental Biology, Universidad Pablo de Olavide, Seville, Spain.,Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBERER, U729), IICS-Madrid, Madrid, Spain.,Centro de investigación en Rendimiento Físico y Deportivo, Universidad Pablo de Olavide, Sevilla, Spain
| | - David Alarcón
- Department of Social Anthropology, Psychology and Public Health, Pablo de Olavide University, Seville, Spain
| |
Collapse
|
5
|
Sinclair SH, Miller E, Talekar KS, Schwartz SS. Diabetes mellitus associated neurovascular lesions in the retina and brain: A review. FRONTIERS IN OPHTHALMOLOGY 2022; 2:1012804. [PMID: 38983558 PMCID: PMC11182219 DOI: 10.3389/fopht.2022.1012804] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/05/2022] [Accepted: 10/14/2022] [Indexed: 07/11/2024]
Abstract
Diabetes mellitus (DM) is now recognized as a system-wide, autoimmune, inflammatory, microvascular disorder, which, in the retina and brain results in severe multifocal injury now recognized as a leading cause, world-wide, of progressive vision loss and dementia. To address this problem, resulting primarily from variations in glycemia in the prediabetic and overt diabetic states, it must be realized that, although some of the injury processes associated with diabetes may be system wide, there are varying responses, effector, and repair mechanisms that differ from organ to organ or within varying cell structures. Specifically, within the retina, and similarly within the brain cortex, lesions occur of the "neurovascular unit", comprised of focal microvascular occlusions, inflammatory endothelial and pericyte injury, with small vessel leakage resulting in injury to astrocytes, Müller cells, and microglia, all of which occur with progressive neuronal apoptosis. Such lesions are now recognized to occur before the first microaneurysms are visible to imaging by fundus cameras or before they result in detectable symptoms or signs recognizable to the patient or clinician. Treatments, therefore, which currently are not initiated within the retina until edema develops or there is progression of vascular lesions that define the current staging of retinopathy, and in the brain only after severe signs of cognitive failure. Treatments, therefore are applied relatively late with some reduction in progressive cellular injury but with resultant minimal vision or cognitive improvement. This review article will summarize the multiple inflammatory and remediation processes currently understood to occur in patients with diabetes as well as pre-diabetes and summarize as well the current limitations of methods for assessing the structural and functional alterations within the retina and brain. The goal is to attempt to define future screening, monitoring, and treatment directions that hopefully will prevent progressive injury as well as enable improved repair and attendant function.
Collapse
Affiliation(s)
- Stephen H Sinclair
- Pennsylvania College of Optometry, Salus University, Philadelphia, PA, United States
| | - Elan Miller
- Division of Vascular Neurology, Vickie & Jack Farber Institute for Institute for Neuroscience, Sidney Kimmel Medical College (SKMC) Thomas Jefferson University, Philadelphia, PA, United States
| | - Kiran S Talekar
- Department of Radiology, Section of Neuroradiology and ENT Radiology, Clinical Functional Magnetic Resonance Imaging and Diffusion Tensor Imaging at Thomas Jefferson University Hospital and The Jefferson Integrated Magnetic Resonance Imaging Center (JIMRIC) Sidney Kimmel Medical College at Thomas Jefferson University, Philadelphia, PA, United States
| | - Stanley S Schwartz
- Department of Endocrinology and Medicine, University of Pennsylvania, Philadelphia, PA, United States
- Main Line Health System, Philadelphia, PA, United States
| |
Collapse
|
6
|
Collin BG, Raju D, Katsikas S. Statins, Enzyme CoQ 10 Supplement Use, and Cognitive Functioning. J Geriatr Psychiatry Neurol 2022; 35:698-704. [PMID: 34493115 DOI: 10.1177/08919887211044747] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
OBJECTIVE The current study assessed the effects of statin and CoQ10 supplement use on changes in cognitive functioning in the Wisconsin Registry for Alzheimer's Prevention study. METHODS 1,573 subjects were administered medical histories, the Mini-Mental State Examination (MMSE), Rey Auditory Verbal Learning Test (RAVLT), Wechsler Memory Scale, Logical Memory subtest, and the Trail Making Test, Parts A (TMT-A) and B (TMT-B) 3-4 times over 5-10 years. RESULTS Linear mixed models did not yield significant effects for statin or CoQ10 supplement use on changes in mental status, learning and memory, psychomotor speed, and cognitive flexibility. CONCLUSIONS Statin and/or CoQ10 supplement use was not associated with neuropsychological test performance in the Wisconsin Registry for Alzheimer's Prevention study.
Collapse
Affiliation(s)
- Brian G Collin
- Spalding University School of Professional Psychology, Louisville, KY, USA
| | - Dheeraj Raju
- Cancer Treatment Centers of America Global Inc., Boca Raton, FL, USA
| | - Steven Katsikas
- Spalding University School of Professional Psychology, Louisville, KY, USA
| |
Collapse
|
7
|
Ali AA, Khalil MG, Abd El-Latif DM, Okda T, Abdelaziz AI, Abu-Elfotuh K, Kamal MM, Wahid A. The influence of vinpocetine alone or in combination with Epigallocatechin-3-gallate, Coenzyme COQ10, Vitamin E and Selenium as a potential neuroprotective combination against aluminium-induced Alzheimer's disease in Wistar Albino Rats. Arch Gerontol Geriatr 2021; 98:104557. [PMID: 34706318 DOI: 10.1016/j.archger.2021.104557] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2021] [Revised: 10/09/2021] [Accepted: 10/10/2021] [Indexed: 12/31/2022]
Abstract
Alzheimer's disease (AD) is one of such diseases that represent the most prominent cause of dementia in elderly people. To explore the possible neuroprotective effect as well as mechanism of action of Vinpocetine either alone or in combination with EGCG, CoQ10, or VE & Se in ameliorating aluminum chloride-induced AD in rats. Rats were received AlCl3 (70 mg/kg) intraperitoneal daily dose for 30 days along with EGCG (10 mg/kg, I.P), CoQ10 (200 mg/kg, P.O), VE (100 mg/kg, P.O) & Se (1 mg/kg, P.O) as well as Vinpocetine (20 mg/kg, P.O) either alone or in combination. Results revealed that the combination of Vinpocetine with EGCG showed the best neuroprotection. This protection in the brain was indicated by the significant decrease in Aβ and ACHE. The same pattern of results were shown in the levels of monoamines and BDNF. In addition, the combination of Vinpocetine with EGCG showed more pronounced anti-inflammatory (TNF-α, IL-1β) and antioxidant (MDA, SOD, TAC) effects in comparison to other combinations. These results were confirmed using histopathological examinations as well as DNA fragmentation assays. Vinpocetine with EGCG showed pronounced protection on neurons against AD induced by AlCl3 in rats.
Collapse
Affiliation(s)
- Azza A Ali
- Department of Pharmacology and Toxicology; Faculty of Pharmacy, Al-Azhar University, Cairo, Egypt
| | - Mona G Khalil
- Department of Biochemistry, Faculty of Pharmacy, Al-Azhar University, Cairo, Egypt
| | - Doaa M Abd El-Latif
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Modern University for Technology and Information, Cairo, Egypt
| | - Tarek Okda
- Department of Biochemistry, Faculty of pharmacy, Damanhour University, Egypt
| | - Aya I Abdelaziz
- Medical Research Center, Faculty of pharmacy, Heliopolis University, Egypt
| | - Karema Abu-Elfotuh
- Department of Pharmacology and Toxicology; Faculty of Pharmacy, Al-Azhar University, Cairo, Egypt
| | - Mona M Kamal
- Department of Pharmacology and Toxicology; Faculty of Pharmacy, Al-Azhar University, Cairo, Egypt
| | - Ahmed Wahid
- Department of Pharmaceutical Biochemistry, Faculty of pharmacy, Alexandria University, Egypt.
| |
Collapse
|
8
|
Mitochondrial Functioning and the Relations among Health, Cognition, and Aging: Where Cell Biology Meets Cognitive Science. Int J Mol Sci 2021; 22:ijms22073562. [PMID: 33808109 PMCID: PMC8037956 DOI: 10.3390/ijms22073562] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2021] [Revised: 03/26/2021] [Accepted: 03/28/2021] [Indexed: 12/12/2022] Open
Abstract
Cognitive scientists have determined that there is a set of mechanisms common to all sensory, perceptual, and cognitive abilities and correlated with age- and disease-related declines in cognition. These mechanisms also contribute to the development and functional coherence of the large-scale brain networks that support complex forms of cognition. At the same time, these brain and cognitive patterns are correlated with myriad health outcomes, indicating that at least some of the underlying mechanisms are common to all biological systems. Mitochondrial functions, including cellular energy production and control of oxidative stress, among others, are well situated to explain the relations among the brain, cognition, and health. Here, I provide an overview of the relations among cognitive abilities, associated brain networks, and the importance of mitochondrial energy production for their functioning. These are then linked to the relations between cognition, health, and aging. The discussion closes with implications for better integrating research in cognitive science and cell biology in the context of developing more sensitive measures of age- and disease-related declines in cognition.
Collapse
|
9
|
Pagano G, Pallardó FV, Lyakhovich A, Tiano L, Fittipaldi MR, Toscanesi M, Trifuoggi M. Aging-Related Disorders and Mitochondrial Dysfunction: A Critical Review for Prospect Mitoprotective Strategies Based on Mitochondrial Nutrient Mixtures. Int J Mol Sci 2020; 21:ijms21197060. [PMID: 32992778 PMCID: PMC7582285 DOI: 10.3390/ijms21197060] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2020] [Revised: 09/20/2020] [Accepted: 09/22/2020] [Indexed: 12/16/2022] Open
Abstract
A number of aging-related disorders (ARD) have been related to oxidative stress (OS) and mitochondrial dysfunction (MDF) in a well-established body of literature. Most studies focused on cardiovascular disorders (CVD), type 2 diabetes (T2D), and neurodegenerative disorders. Counteracting OS and MDF has been envisaged to improve the clinical management of ARD, and major roles have been assigned to three mitochondrial cofactors, also termed mitochondrial nutrients (MNs), i.e., α-lipoic acid (ALA), Coenzyme Q10 (CoQ10), and carnitine (CARN). These cofactors exert essential–and distinct—roles in mitochondrial machineries, along with strong antioxidant properties. Clinical trials have mostly relied on the use of only one MN to ARD-affected patients as, e.g., in the case of CoQ10 in CVD, or of ALA in T2D, possibly with the addition of other antioxidants. Only a few clinical and pre-clinical studies reported on the administration of two MNs, with beneficial outcomes, while no available studies reported on the combined administration of three MNs. Based on the literature also from pre-clinical studies, the present review is to recommend the design of clinical trials based on combinations of the three MNs.
Collapse
Affiliation(s)
- Giovanni Pagano
- Department of Chemical Sciences, Federico II Naples University, I-80126 Naples, Italy; (M.T.); (M.T.)
- Correspondence:
| | - Federico V. Pallardó
- Department of Physiology, Faculty of Medicine and Dentistry, University of Valencia-INCLIVA, CIBERER, E-46010 Valencia, Spain;
| | - Alex Lyakhovich
- Vall d’Hebron Institut de Recerca, E-08035 Barcelona, Catalunya, Spain;
- Institute of Molecular Biology and Biophysics of the “Federal Research Center of Fundamental and Translational Medicine”, Novosibirsk 630117, Russia
| | - Luca Tiano
- Department of Life and Environmental Sciences, Polytechnical University of Marche, I-60100 Ancona, Italy;
| | - Maria Rosa Fittipaldi
- Internal Medicine Unit, San Francesco d’Assisi Hospital, I-84020 Oliveto Citra (SA), Italy;
| | - Maria Toscanesi
- Department of Chemical Sciences, Federico II Naples University, I-80126 Naples, Italy; (M.T.); (M.T.)
| | - Marco Trifuoggi
- Department of Chemical Sciences, Federico II Naples University, I-80126 Naples, Italy; (M.T.); (M.T.)
| |
Collapse
|
10
|
Ubiquinol-10 Intake Is Effective in Relieving Mild Fatigue in Healthy Individuals. Nutrients 2020; 12:nu12061640. [PMID: 32498248 PMCID: PMC7352232 DOI: 10.3390/nu12061640] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2020] [Revised: 05/20/2020] [Accepted: 05/28/2020] [Indexed: 12/13/2022] Open
Abstract
Our double-blind, placebo-controlled study evaluated effects of ubiquinol, the reduced form of coenzyme Q10, on mild fatigue in healthy individuals experiencing fatigue in daily life that had continued for more than 1 and less than 6 months. The participants received 100-mg/day (Ubq100; age 44.0 ± 9.8 years; 14 females and 6 males) or 150-mg/day ubiquinol (Ubq150; age 40.4 ± 11.8 years; 14 females and 8 males) or placebo (Plc; age 41.3 ± 13.4 years; 13 females and 7 males) daily for 12 weeks. Measurements of subjective and objective fatigue were conducted by using questionnaires-based fatigue scales/visual analogue scales and autonomic nerve function/biological oxidation index, respectively, prior to the first dosing and every 4 weeks thereafter. Serum ubiquinol level increased three- to four-fold after 4 weeks and remained significantly higher than that after Plc administration throughout the intake period. Although a higher blood level of ubiquinol was observed with Ubq150 than with Ubq100, the difference was not statistically significant. In both Ubq100 and Ubq150 groups, subjective levels of fatigue sensation and sleepiness after cognitive tasks, which consisted of the modified Advanced Trail Making Test, the modified Stroop Color-Word Test, and the Digit Symbol Substitution Test, improved significantly compared with those in the placebo group, suggesting an anti-fatigue effect. The Ubq150 group demonstrated significant improvement compared with the Plc group regarding subjective level of relaxation after task, sleepiness before and after task, motivation for task, and serum level of oxidative stress. Correlation analysis between blood level of ubiquinol and each evaluated effect suggested a positive relationship with relaxation after task, motivation for cognitive task, and parasympathetic activity. The results of the study suggest that ubiquinol intake relieves mild fatigue in healthy individuals.
Collapse
|
11
|
Edgar CJ, Brooker H. Professor Keith Andrew Wesnes (1950 to 2020). ALZHEIMER'S & DEMENTIA: DIAGNOSIS, ASSESSMENT & DISEASE MONITORING 2020; 12:e12086. [PMID: 32995463 PMCID: PMC7507086 DOI: 10.1002/dad2.12086] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
|