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Coenzyme Q10

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https://www.readbyqxmd.com/read/29159460/compound-heterozygous-inheritance-of-mutations-in-coenzyme-q8a-results-in-autosomal-recessive-cerebellar-ataxia-and-coenzyme-q10-deficiency-in-a-female-sib-pair
#1
Jessie C Jacobsen, Whitney Whitford, Brendan Swan, Juliet Taylor, Donald R Love, Rosamund Hill, Sarah Molyneux, Peter M George, Richard Mackay, Stephen P Robertson, Russell G Snell, Klaus Lehnert
Autosomal recessive ataxias are characterised by a fundamental loss in coordination of gait with associated atrophy of the cerebellum. There is significant clinical and genetic heterogeneity amongst inherited ataxias; however, an early molecular diagnosis is essential with low-risk treatments available for some of these conditions. We describe two female siblings who presented early in life with unsteady gait and cerebellar atrophy. Whole exome sequencing revealed compound heterozygous inheritance of two pathogenic mutations (p...
November 21, 2017: JIMD Reports
https://www.readbyqxmd.com/read/29158290/a-comparative-proteome-profile-of-female-mouse-gonads-suggests-a-tight-link-between-the-electron-transport-chain-and-meiosis-initiation
#2
Cong Shen, Mingrui Li, Pan Zhang, Yueshuai Guo, Hao Zhang, Bo Zheng, Hui Teng, Tao Zhou, Xuejiang Guo, Ran Huo
Generation of haploid gametes by meiosis is a unique property of germ cells and is critical for sexual reproduction. Leaving mitosis and entering meiosis is a key step in germ cell development. Several inducers or intrinsic genes are known to be important for meiotic initiation, but the regulation of meiotic initiation, especially at the protein level, is still not well understood. We constructed a comparative proteome profile of female mouse fetal gonads at specific time points (11.5, 12.5, and 13.5 days post coitum), spanning a critical window for initiation of meiosis in female germ cells...
November 20, 2017: Molecular & Cellular Proteomics: MCP
https://www.readbyqxmd.com/read/29155836/genetic-variation-in-dip5-an-amino-acid-permease-and-pdr5-a-multiple-drug-transporter-regulates-glyphosate-resistance-in-s-cerevisiae
#3
Xiaoqing Rong-Mullins, Apoorva Ravishankar, Kirsten A McNeal, Zachery R Lonergan, Audrey C Biega, J Philip Creamer, Jennifer E G Gallagher
S. cerevisiae from different environments are subject to a wide range of selective pressures, whether intentional or by happenstance. Chemicals classified by their application, such as herbicides, fungicides and antibiotics, can affect non-target organisms. First marketed as RoundUp™, glyphosate is the most widely used herbicide. In plants, glyphosate inhibits EPSPS, of the shikimate pathway, which is present in many organisms but lacking in mammals. The shikimate pathway produces chorismate which is the precursor to all the aromatic amino acids, para-aminobenzoic acid, and Coenzyme Q10...
2017: PloS One
https://www.readbyqxmd.com/read/29154270/ubisol-q10-a-nanomicellar-water-soluble-formulation-of-coq10-treatment-inhibits-alzheimer-type-behavioral-and-pathological-symptoms-in-a-double-transgenic%C3%A2-mouse%C3%A2-tgapeswe-%C3%A2-psen1de9-model-of-alzheimer-s-disease
#4
Krithika Muthukumaran, Annie Kanwar, Caleb Vegh, Alexandra Marginean, Austin Elliott, Nicholas Guilbeault, Alexander Badour, Marianna Sikorska, Jerome Cohen, Siyaram Pandey
 Alzheimer's disease (AD) is one of the most common neurodegenerative pathologies for which there are no effective therapies to halt disease progression. Given the increase in the incidence of this disorder, there is an urgent need for pharmacological intervention. Unfortunately, recent clinical trials produced disappointing results. Molecular mechanisms of AD are converging on the notion that mitochondrial dysfunction, oxidative stress, and accumulation of dysfunctional proteins are involved in AD pathology...
November 16, 2017: Journal of Alzheimer's Disease: JAD
https://www.readbyqxmd.com/read/29145311/pulmonary-hypertension-as-a-manifestation-of-mitochondrial-disease-a-case-report-and-review-of-the-literature
#5
Shan Xu, Xiaoling Xu, Jisong Zhang, Kejing Ying, Yuquan Shao, Ruifeng Zhang
BACKGROUND: Mitochondrial diseases are a group of multisystem heterogeneous diseases caused by pathologic dysfunction of the mitochondrial respiratory chain. A wide range of clinical expression has been described. However, pulmonary hypertension has rarely been described in association with mitochondrial disease until the past decade, and there is no currently recognized treatment for the pulmonary hypertension complicated with mitochondrial disorder. PATIENT CONCERNS: We reported the case of a 15-year-old boy who presented with shortness of breath and exercise limitation after a cold, and the diagnosis of pulmonary hypertension was confirmed by right heart catheter...
November 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29143438/protective-effects-of-coenzyme-q10-nanoparticles-on-dichlorvos-induced-hepatotoxicity-and-mitochondrial-lysosomal-injury
#6
Aziz Eftekhari, Elham Ahmadian, Aida Azami, Mohammad Johari-Ahar, Mohammad Ali Eghbal
Development of biocompatible antioxidant nanoparticles for xenobiotic-induced liver disease treatment by oral or parenteral administration is of great interest in medicine. In the current study, we demonstrate the protective effects of coenzyme Q10 nanoparticles (CoQ10-NPs) on hepatotoxicity induced by dichlorvos (DDVP) as an organophosphate. Although CoQ10 is an efficient antioxidant, its poor bioavailability has limited the applications of this useful agent. First, CoQ10-NPs were prepared then characterized using dynamic light scattering (DLS) and transmission electron microscopy (TEM)...
November 16, 2017: Environmental Toxicology
https://www.readbyqxmd.com/read/29143180/oxidative-stress-in-adult-growth-hormone-deficiency-different-plasma-antioxidant-patterns-in-comparison-with-metabolic-syndrome
#7
Antonio Mancini, Chantal Di Segni, Carmine Bruno, Giulio Olivieri, Francesco Guidi, Andrea Silvestrini, Elisabetta Meucci, Patrick Orlando, Sonia Silvestri, Luca Tiano, Alfredo Pontecorvi
BACKGROUND AND AIMS: Growth hormone deficiency (GHD) is a condition associated with increased cardiovascular risk and insulin-resistance. Oxidative stress (OS) could be a mechanism underlying both these phenomena. In order to investigate plasma antioxidant defenses in such condition, we evaluated adults with GHD, compared with controls and metabolic syndrome patients (MetS), studying plasma total antioxidant capacity (TAC) and coenzyme Q10 (CoQ10, lipophilic antioxidant) levels, both in its oxidized and reduced forms, correlating this data with metabolic and hormonal pattern...
November 15, 2017: Endocrine
https://www.readbyqxmd.com/read/29123615/the-combination-of-physical-exercise-with-muscle-directed-antioxidants-to-counteract-sarcopenia-a-biomedical-rationale-for-pleiotropic-treatment-with-creatine-and-coenzyme-q10
#8
REVIEW
Michele Guescini, Luca Tiano, Maria Luisa Genova, Emanuela Polidori, Sonia Silvestri, Patrik Orlando, Carmela Fimognari, Cinzia Calcabrini, Vilberto Stocchi, Piero Sestili
Sarcopenia represents an increasing public health risk due to the rapid aging of the world's population. It is characterized by both low muscle mass and function and is associated with mobility disorders, increased risk of falls and fractures, loss of independence, disabilities, and increased risk of death. Despite the urgency of the problem, the development of treatments for sarcopenia has lagged. Increased reactive oxygen species (ROS) production and decreased antioxidant (AO) defences seem to be important factors contributing to muscle impairment...
2017: Oxidative Medicine and Cellular Longevity
https://www.readbyqxmd.com/read/29115467/coenzyme-q10-promotes-osteoblast-proliferation-and-differentiation-and-protects-against-ovariectomy-induced-osteoporosis
#9
Delu Zheng, Chenli Cui, Meng Yu, Xiang Li, Lu Wang, Xinyan Chen, Yichen Lin
Coenzyme Q10 (CoQ10) is a fat‑soluble vitamin‑like substance used for the treatment of a variety of disorders, including osteoporosis. The exact mechanism underlying CoQ10‑mediated protection against osteoporosis remains to be elucidated. The present study aimed to evaluate the effect of CoQ10 on osteoblastic cell proliferation and differentiation, and therapeutic effects on a rat model of osteoporosis. Following treatment with different concentrations of CoQ10, cell proliferation and differentiation of rat bone marrow stromal cells (BMSCs), and expression of osteoblastogenic markers, were measured...
October 26, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/29111905/the-effects-of-coenzyme-q10-supplementation-on-glucose-metabolism-lipid-profiles-inflammation-and-oxidative-stress-in-patients-with-diabetic-nephropathy-a-randomized-double-blind-placebo-controlled-trial
#10
Tahereh Gholnari, Esmat Aghadavod, Alireza Soleimani, Gholam Ali Hamidi, Nasrin Sharifi, Zatollah Asemi
OBJECTIVE: Data on the effects of coenzyme Q10 (CoQ10) supplementation on glucose metabolism, lipid profiles, inflammation, and oxidative stress in subjects with diabetic nephropathy (DN) are scarce. This research was done to determine the effects of CoQ10 supplementation on metabolic status in subjects with DN. METHODS: This randomized double-blind placebo-controlled clinical trial was done in 50 subjects with DN. Participants were randomly assigned into two groups to intake either 100 mg/day CoQ10 supplements (n = 25) or placebo (n = 25) for 12 weeks...
November 7, 2017: Journal of the American College of Nutrition
https://www.readbyqxmd.com/read/29107645/cerebrospinal-fluid-levels-of-coenzyme-q10-are-reduced-in-multiple-system-atrophy
#11
Yaroslau Compta, Darly M Giraldo, Esteban Muñoz, Francesca Antonelli, Manel Fernández, Paloma Bravo, Marta Soto, Ana Cámara, Ferran Torres, María José Martí
INTRODUCTION: The finding of mutations of the COQ2 gene and reduced coenzyme Q10 levels in the cerebellum in multiple system atrophy (MSA) suggest that coenzyme Q10 is relevant to MSA pathophysiology. Two recent studies have reported reduced coenzyme Q10 levels in plasma and serum (respectively) of MSA patients compared to Parkinson's disease and/or control subjects, but with largely overlapping values, limited comparison with other parkinsonisms, or dependence on cholesterol levels. We hypothesized that cerebrospinal fluid (CSF) is reliable to assess reductions in coenzyme Q10 as a candidate biomarker of MSA...
October 20, 2017: Parkinsonism & related Disorders
https://www.readbyqxmd.com/read/29106966/single-step-preparation-of-selected-biological-fluids-for-the-high-performance-liquid-chromatographic-analysis-of-fat-soluble-vitamins-and-antioxidants
#12
Giacomo Lazzarino, Salvatore Longo, Angela Maria Amorini, Valentina Di Pietro, Serafina D'Urso, Giuseppe Lazzarino, Antonio Belli, Barbara Tavazzi
Fat-soluble vitamins and antioxidants are of relevance in health and disease. Current methods to extract these compounds from biological fluids mainly need use of multi-steps and multi organic solvents. They are time-consuming and difficult to apply to treat simultaneously large sample number. We here describe a single-step, one solvent extraction of fat-soluble vitamins and antioxidants from biological fluids, and the chromatographic separation of all-trans-retinoic acid, 25-hydroxycholecalciferol, all-trans-retinol, astaxanthin, lutein, zeaxanthin, trans-β-apo-8'-carotenal, γ-tocopherol, β-cryptoxanthin, α-tocopherol, phylloquinone, lycopene, α-carotene, β-carotene and coenzyme Q10...
December 8, 2017: Journal of Chromatography. A
https://www.readbyqxmd.com/read/29096550/optimization-of-nutraceutical-coenzyme-q10-nanoemulsion-with-improved-skin-permeability-and-anti-wrinkle-efficiency
#13
Eman S El-Leithy, Amna M Makky, Abeer M Khattab, Doaa G Hussein
Coenzyme Q10 (CoQ10) is an insoluble, poorly permeable antioxidant with great biological value which acts as anti-aging and anti-wrinkle agent. To improve its permeability through topical application, the current study aimed at formulating oil/water (o/w) nanoemulsion (NE) as an efficient vehicle for delivering (CoQ10) through the skin barriers. The solubility of (CoQ10) was tested for various oils, surfactants (S), and co-surfactants (CoS). The NE region was determined by constructing pseudoternary phase diagrams...
November 2, 2017: Drug Development and Industrial Pharmacy
https://www.readbyqxmd.com/read/29082762/application-of-scco2-technology-for-preparing-coq10-solid-dispersion-and-sfc-ms-ms-for-analyzing-in-vivo-bioavailability
#14
Rujie Yang, Yingchao Li, Jing Li, Cuiru Liu, Ping Du, Tianhong Zhang
OBJECTIVE: In this study, solid dispersion (SD) for oral delivery of a poorly water-soluble drug, coenzyme Q10 was developed by supercritical fluid technology and characterized in vitro and in vivo. METHODS: Dissolution was used to optimize the formulations of CoQ10-SD. The physicochemical properties of SD were investigated by differential scanning calorimetry (DSC), powder X-ray diffraction (PXRD), and scanning electron microscopy (SEM). The supercritical fluid chromatography-electrospray ionization tandem mass spectrometry (SFC-ESI-MS/MS) was used for the in vivo study...
October 30, 2017: Drug Development and Industrial Pharmacy
https://www.readbyqxmd.com/read/29081890/role-of-diet-and-nutritional-supplements-in-parkinson-s-disease-progression
#15
Laurie K Mischley, Richard C Lau, Rachel D Bennett
OBJECTIVES: The goal of this study is to describe modifiable lifestyle variables associated with reduced rate of Parkinson's disease (PD) progression. METHODS: The patient-reported outcomes in PD (PRO-PD) were used as the primary outcome measure, and a food frequency questionnaire (FFQ) was used to assess dietary intake. In this cross-sectional analysis, regression analysis was performed on baseline data to identify the nutritional and pharmacological interventions associated with the rate of PD progression...
2017: Oxidative Medicine and Cellular Longevity
https://www.readbyqxmd.com/read/29081748/coq10-augments-rosuvastatin-neuroprotective-effect-in-a-model-of-global-ischemia-via-inhibition-of-nf-%C3%AE%C2%BAb-jnk3-bax-and-activation-of-akt-foxo3a-bim-cues
#16
Sarah A Abd El-Aal, Mai A Abd El-Fattah, Hanan S El-Abhar
Statins were reported to lower the Coenzyme Q10 (CoQ10) content upon their inhibition of HMG-CoA reductase enzyme and both are known to possess neuroprotective potentials; therefore, the aim is to assess the possible use of CoQ10 as an adds-on therapy to rosuvastatin to improve its effect using global I/R model. Rats were allocated into sham, I/R, rosuvastatin (10 mg/kg), CoQ10 (10 mg/kg) and their combination. Drugs were administered orally for 7 days before I/R. Pretreatment with rosuvastatin and/or CoQ10 inhibited the hippocampal content of malondialdehyde, nitric oxide, and boosted glutathione and superoxide dismutase...
2017: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/29081620/cardioprotective-effect-of-coenzyme-q10-on-apoptotic-myocardial-cell-death-by-regulation-of-bcl-2-gene-expression
#17
Najam Ali Khan, M Abid, Aftab Ahmad, Mohammed F Abuzinadah, Mohammed Basheikh, Kamal Kishore
OBJECTIVES: To investigate the effect of coenzyme Q10 (CoQ10) on apoptotic myocardial cell death in rat model of heart ischemia and reperfusion I/R injury. MATERIALS AND METHODS: Eighteen rats (200-250 g) were divided into three groups of 6 rats in each. Group I (sham-operated control group): this is the control group. The animals received the surgical procedure without IR injury or any drug treatment. Group II (I/R group): ischemia was accomplished by the occlusion of coronary artery for 30 min followed by reperfusion for 45 min and Group-III (Coenzyme Q10 treated group): Treated with CoQ10 at a dose of 1 mg/kg, postoperative for 7 days before induction of IR injury...
July 2017: Journal of Pharmacology & Pharmacotherapeutics
https://www.readbyqxmd.com/read/29080629/coenzyme-q10-supplementation-in-orthostatic-hypotension-and-multiple-system-atrophy-a-report-on-7-cases
#18
Christopher M Rembold
BACKGROUND: Multiple-system atrophy is a neurologic disorder characterized by orthostatic hypotension, Parkinsonian signs, and cerebellar signs. Mutations in COQ2, an enzyme involved in coenzyme Q10 (CoQ10) synthesis were recently associated with familial and sporadic cases of multiple-system atrophy. I hypothesized that people with orthostatic hypotension with or without other symptoms of multiple-system atrophy might benefit from oral CoQ10 administration. METHODS: Seven patients with symptomatic orthostatic hypotension were treated in an unrandomized manner with 257±37 mg CoQ10 daily for 10±3 months...
October 25, 2017: American Journal of Medicine
https://www.readbyqxmd.com/read/29070589/mitochondria-targeted-molecules-determine-the-redness-of-the-zebra-finch-bill
#19
Alejandro Cantarero, Carlos Alonso-Alvarez
The evolution and production mechanisms of red carotenoid-based ornaments in animals are poorly understood. Recently, it has been suggested that enzymes transforming yellow carotenoids to red pigments (ketolases) in animal cells may be positioned in the inner mitochondrial membrane (IMM) intimately linked to the electron transport chain. These enzymes may mostly synthesize coenzyme Q10 (coQ10), a key redox-cycler antioxidant molecularly similar to yellow carotenoids. It has been hypothesized that this shared pathway favours the evolution of red traits as sexually selected individual quality indices by revealing a well-adjusted oxidative metabolism...
October 2017: Biology Letters
https://www.readbyqxmd.com/read/29066385/nebulized-coenzyme-q10-nanosuspensions-a-versatile-approach-for-pulmonary-antioxidant-therapy
#20
Irene Rossi, Fabio Sonvico, Jason T McConville, Francesca Rossi, Eleonore Fröhlich, Sarah Zellnitz, Alessandra Rossi, Elena Del Favero, Ruggero Bettini, Francesca Buttini
Coenzyme Q10 (CoQ10) is an antioxidant substance indicated as a dietary supplement which has been proposed as adjuvant in the treatment of cardiovascular disorders and cancer for its protective and immunostimulating activities. The aim of this work was the production by high-pressure homogenization, characterization and stability investigation of three different CoQ10 nanosuspensions designed to be administered to the lungs by nebulization. Three surfactants, i.e. lecithin, PEG32 stearate and vitamin-E TPGS, were selected to stabilize CoQ10 formulations...
October 21, 2017: European Journal of Pharmaceutical Sciences
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