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https://www.readbyqxmd.com/read/29781757/molecular-diagnosis-of-coenzyme-q-10-deficiency-an-update
#1
Delia Yubero, Raquel Montero, Carlos Santos-Ocaña, Leonardo Salviati, Placido Navas, Rafael Artuch
Coenzyme Q10 (CoQ) deficiency syndromes comprise a growing number of genetic disorders. While primary CoQ deficiency syndromes are rare diseases, secondary deficiencies have been related to both genetic and environmental conditions, which are the main causes of biochemical CoQ deficiency. The diagnosis is the essential first step for planning future treatment strategies, as the potential treatability of CoQ deficiency is the most critical issue for the patients. Areas covered: While the quickest and most effective tool to define a CoQ-deficient status is its biochemical determination in biological fluids or tissues, this quantification does not provide a definite diagnosis of a CoQ-deficient status nor insight about the genetic etiology of the disease...
May 21, 2018: Expert Review of Molecular Diagnostics
https://www.readbyqxmd.com/read/29776437/coenzyme-q10-combined-with-trimetazidine-in-the-prevention-of-contrast-induced-nephropathy-in-patients-with-coronary-heart-disease-complicated-with-renal-dysfunction-undergoing-elective-cardiac-catheterization-a-randomized-control-study-and-in-vivo-study
#2
Fei Chen, Fan Liu, Jingchao Lu, Xiuchun Yang, Bing Xiao, Yaqiong Jin, Jie Zhang
BACKGROUND: Contrast-induced nephropathy (CIN) is one of the common hospital-acquired acute renal failures. The purpose of this study was to investigate whether Coenzyme Q10 (CoQ10) and trimetazidine (TMZ) can prevent the occurrence of CIN after elective cardiac catheterization in patients with coronary artery disease complicated with renal dysfunction. METHODS: Consecutive coronary artery disease patients with renal insufficiency scheduled for coronary angiography were enrolled in randomized, paralleled, double-blind, controlled trial...
May 18, 2018: European Journal of Medical Research
https://www.readbyqxmd.com/read/29774972/temperature-response-of-permafrost-soil-carbon-is-attenuated-by-mineral-protection
#3
Norman Gentsch, Birgit Wild, Robert Mikutta, Petr Čapek, Katka Diáková, Marion Schrumpf, Stephanie Turner, Cynthia Minnich, Frank Schaarschmidt, Olga Shibistova, Jörg Schnecker, Tim Urich, Antje Gittel, Hana Šantrůčková, Jiři Bárta, Nikolay Lashchinskiy, Roland Fuß, Andreas Richter, Georg Guggenberger
Climate change in Arctic ecosystems fosters permafrost thaw and makes massive amounts of ancient soil organic carbon (OC) available to microbial breakdown. However, fractions of the organic matter (OM) may be protected from rapid decomposition by their association with minerals. Little is known about the effects of mineral-organic associations (MOA) on the microbial accessibility of OM in permafrost soils and it is not clear which factors control its temperature sensitivity. In order to investigate if and how permafrost soil OC turnover is affected by mineral controls, the heavy fraction (HF) representing mostly MOA was obtained by density fractionation from 27 permafrost soil profiles of the Siberian Arctic...
May 18, 2018: Global Change Biology
https://www.readbyqxmd.com/read/29773394/grafting-of-steroids-to-hyaluronan-towards-the-design-of-delivery-systems-for-antioxidants-the-role-of-hydrophobic-core
#4
Gloria Huerta-Ángeles, Martina Brandejsová, Jaroslav Novotný, Kateřina Kopecká, Jana Šógorková, Daniela Šmejkalová, Vladimír Velebný
In this work, amphiphilic hyaluronic acid (HA) was synthesized by the chemical bonding of steroids. Particularly, succinyl cholesterol (SCH), cholic acid (CA), deoxycholic acid (DOCA), and 18β-glycyrrhetinic acid (GA) were activated by benzoyl chloride towards the esterification reaction of HA in water. The degree of substitution can be controlled by varying the feed ratio of mixed anhydride to HA and up to 25% (mol/mol) can be obtained. Due to mild reaction conditions, no degradation of the polysaccharide was observed...
August 1, 2018: Carbohydrate Polymers
https://www.readbyqxmd.com/read/29766349/recent-developments-in-the-role-of-coenzyme-q10-for-coronary-heart-disease-a-systematic-review
#5
REVIEW
Jessica Ayers, Jamie Cook, Rachel A Koenig, Evan M Sisson, Dave L Dixon
PURPOSE OF REVIEW: This review examines recent randomized clinical trials evaluating the role of coenzyme Q10 (CoQ10) in the management of coronary heart disease. RECENT FINDINGS: CoQ10 is one of the most commonly used dietary supplements in the USA. Due to its antioxidant and anti-inflammatory effects, CoQ10 has been studied extensively for possible use in managing coronary heart disease. One of the most common applications of CoQ10 is to mitigate statin-associated muscle symptoms (SAMS) based on the theory that SAMS are caused by statin depletion of CoQ10 in the muscle...
May 16, 2018: Current Atherosclerosis Reports
https://www.readbyqxmd.com/read/29755918/coq10-a-super-vitamin-review-on-application-and-biosynthesis
#6
REVIEW
Shraddha Shukla, Kashyap Kumar Dubey
Coenzyme Q10 (CoQ) or ubiquinone is found in the biological system which is synthesized by the conjugation of benzoquinone ring with isoprenoid chain of variable length. Coenzyme Q10 supplementation energizes the body and increases body energy production in the form of ATP and helps to treat various human diseases such as cardiomyopathy, muscular dystrophy, periodontal disease, etc. Reports of these potential therapeutic advantages of CoQ10 have resulted in its high market demand, which focus the researchers to work on this molecule and develop better bioprocess methods for commercial level production...
May 2018: 3 Biotech
https://www.readbyqxmd.com/read/29747617/pheochromocytoma-as-a-rare-cause-of-hypertension-in-a-46-x-i-x-q10-turner-syndrome-a-case-report-and-literature-review
#7
Ji Yeon Shin, Bo Hyun Kim, Young Keum Kim, Tae Hwa Kim, Eun Heui Kim, Min Jin Lee, Jong Ho Kim, Yun Kyung Jeon, Sang Soo Kim, In Joo Kim
BACKGROUND: Cardiovascular disease (CVD) presents the most serious health problems and contributes to the increased mortality in young women with Turner syndrome. Arterial hypertension in Turner syndrome patients is significantly more prevalent than that in a general age-matched control group. The aetiology of hypertension in Turner syndrome varies, even in the absence of cardiac anomalies and obvious structural renal abnormalities. Pheochromocytoma is an extremely rare cause among various etiologies for hypertension in patients with Turner syndrome...
May 10, 2018: BMC Endocrine Disorders
https://www.readbyqxmd.com/read/29735117/pediatric-ataxia-focus-on-chronic-disorders
#8
David R Lynch, Ashley McCormick, Kimberly Schadt, Elizabeth Kichula
Evaluation of a pediatric patient presenting with ataxia can be expensive and time consuming. Acute causes tend to have a clear developmental paradigm, but chronic presentations are more likely to be secondary to a genetic disorder, either one that primarily causes ataxia or that presents ataxia as one of a multitude of symptoms. Evaluation should focus on a quick diagnosis for those that have treatment options and for those that require other systemic monitoring. Friedreich ataxia is the most common, and genetic testing can easily confirm the suspicion...
April 2018: Seminars in Pediatric Neurology
https://www.readbyqxmd.com/read/29734881/effect-of-ubiquinol-supplementation-on-biochemical-and-oxidative-stress-indexes-after-intense-exercise-in-young-athletes
#9
Patrick Orlando, Sonia Silvestri, Roberta Galeazzi, Roberto Antonicelli, Fabio Marcheggiani, Ilenia Cirilli, Tiziana Bacchetti, Luca Tiano
OBJECTIVES: Physical exercise significantly impacts the biochemistry of the organism. Ubiquinone is a key component of the mitochondrial respiratory chain and ubiquinol, its reduced and active form, is an emerging molecule in sport nutrition. The aim of this study was to evaluate the effect of ubiquinol supplementation on biochemical and oxidative stress indexes after an intense bout of exercise. METHODS: 21 male young athletes (26 + 5 years of age) were randomized in two groups according to a double blind cross-over study, either supplemented with ubiquinol (200 mg/day) or placebo for 1 month...
December 2018: Redox Report: Communications in Free Radical Research
https://www.readbyqxmd.com/read/29731611/self-reported-adherence-and-biomarker-levels-of-coq10-and-alpha-tocopherol
#10
Mara Z Vitolins, L Douglas Case, Stephen R Rapp, Mark O Lively, Edward G Shaw, Michelle J Naughton, Jeffrey Giguere, Glenn J Lesser
Purpose: Women with breast cancer were randomized to receive coenzyme Q10 (CoQ10) plus Vitamin E or placebo in a clinical trial. The objective of this evaluation is to examine the association between participant self-reported adherence to the study supplements and changes in plasma biomarker levels. Patients and methods: Correlation coefficients quantified the association between changes in alpha-tocopherol and CoQ10 levels and the association between self-reported adherence and changes in biomarkers...
2018: Patient Preference and Adherence
https://www.readbyqxmd.com/read/29728448/the-temperature-dependence-of-kinetics-associated-with-drug-block-of-herg-channels-are-compound-specific-and-an-important-factor-for-proarrhythmic-risk-prediction
#11
Monique J Windley, William Lee, Jamie I Vandenberg, Adam P Hill
Current mandated preclinical tests for drug induced proarrhythmia are very sensitive, but not sufficiently specific. This has led to concern that there is a high attrition rate of potentially safe drugs that could have been beneficial to patients. The comprehensive in vitro pro-arrhythmia (CiPA) initiative has proposed new metrics based around in silico risk predictions, which are informed, amongst other things, by measures of hERG block kinetics. However, high throughput patch-clamp systems set to collect this data largely operate at ambient temperature, while the simulations for risk prediction are carried out at physiological temperature...
May 4, 2018: Molecular Pharmacology
https://www.readbyqxmd.com/read/29725528/-blastoid-variant-of-burkitt-lymphoma-with-additional-partial-1q-tetrasomy
#12
Ahsan Siddiqi, Sheshadri Madhusudhana, Alexey Glazyrin
Burkitt lymphoma is cytogenetically characterized by t(8;14)(q24;q32) translocation, sometimes accompanied by additional cytogenetic abnormalities. These abnormalities usually result in more aggressive clinical presentation and morphology of the disease. The current report presens a case of Burkitt lymphoma with t(8;14)(q24;q32) accompanied by partial tetrasomy of chromosome 1(47,XY,+1,i(1)(q10),t(8;14)(q24;q32)[2]/46,XY[18]). The patient was a 59-year-old male who presented with abdominal pain, leukocytosis and tumor lysis syndrome...
May 2018: Molecular and Clinical Oncology
https://www.readbyqxmd.com/read/29713542/systematic-review-of-antioxidant-types-and-doses-in-male-infertility-benefits-on-semen-parameters-advanced-sperm-function-assisted-reproduction-and-live-birth-rate
#13
Ahmad Majzoub, Ashok Agarwal
Objective: To explore the current evidence concerning the effect of oral antioxidant supplementation on various male fertility outcomes, as antioxidants are widely available compounds that are commonly used for the treatment of male infertility. Materials and methods: PubMed, Medline and Cochrane electronic databases were searched according to a modified Preferred Reporting Items for Systemic Reviews and Meta-Analyses (PRISMA) guidelines looking for studies investigating the effect of antioxidant therapy on infertile men...
March 2018: Arab Journal of Urology
https://www.readbyqxmd.com/read/29710590/temperature-sensitivity-of-biodegradable-dissolved-organic-carbon-increases-with-elevating-humification-degree-in-subtropical-rivers
#14
Rong Mao, Si-Yue Li
Biodegradable dissolved organic carbon (BDOC) plays a key role in C cycle in inland waters. However, the magnitude of temperature sensitivity (Q10 value) of BDOC is still unclear, and the effect of DOC quality on Q10 value of BDOC is not well verified in these aquatic systems. Here, we used a laboratory incubation experiment to determine the Q10 value of BDOC in 57 rivers in the Three Gorges Reservoir area, China, and then tested whether C quality-temperature hypothesis could be applied to BDOC in inland waters...
April 24, 2018: Science of the Total Environment
https://www.readbyqxmd.com/read/29707741/myocardial-energetics-and-heart-failure-a-review-of-recent-therapeutic-trials
#15
REVIEW
Kunal N Bhatt, Javed Butler
PURPOSE OF REVIEW: Several novel therapeutics being tested in patients with heart failure are based on myocardial energetics. This review will provide a summary of the recent trials in this area, including therapeutic options targeting various aspects of cellular and mitochondrial metabolism. RECENT FINDINGS: Agents that improve the energetic balance in myocardial cells have the potential to improve clinical heart failure status. The most promising therapies currently under investigation in this arena include (1) elamipretide, a cardiolipin stabilizer; (2) repletion of iron deficiency with intravenous ferrous carboxymaltose; (3) coenzyme Q10; and (4) the partial adenosine receptor antagonists capadenoson and neladenosone...
April 30, 2018: Current Heart Failure Reports
https://www.readbyqxmd.com/read/29698813/neuropathic-keratopathy
#16
REVIEW
Harminder S Dua, Dalia G Said, Elisabeth M Messmer, Maurizio Rolando, Jose M Benitez-Del-Castillo, Parwez N Hossain, Alex J Shortt, Gerd Gerling, Mario Nubile, Francisco C Figueiredo, Saaeha Rauz, Leonardo Mastropasqua, Paolo Rama, Christophe Baudouin
Neurotrophic Keratopathy (NK) refers to a condition where corneal epitheliopathy leading to frank epithelial defect with or without stromal ulceration (melting) is associated with reduced or absent corneal sensations. Sensory nerves serve nociceptor and trophic functions, which can be affected independently or simultaneously. Loss of trophic function and consequent epithelial breakdown exposes the stroma making it susceptible to enzymatic degradation. Nerve pathology can range from attrition to aberrant re-generation with corresponding symptoms from anaesthesia to hyperaesthesia/allodynia...
April 23, 2018: Progress in Retinal and Eye Research
https://www.readbyqxmd.com/read/29694831/atorvastatin-in-nano-particulate-formulation-abates-muscle-and-liver-affliction-when-coalesced-with-coenzyme-q10-and-or-vitamin-e-in-hyperlipidemic-rats
#17
S M Farrag, M A Hamzawy, M F El-Yamany, M A Saad, N N Nassar
AIMS: Statins are the most widely used to lower elevated low-density lipoprotein levels and preventing cardiovascular diseases in humans. However, about 20% of patients treated with this medication suffer from statin-related myalgia. To this end, this study investigated the potential effect of nano-particulate formulation in alleviating the muscles and liver damage either alone or when co-administered with nano coenzyme Q10 and nano vitamin E. MATERIALS AND METHODS: Male Wistar rats were fed normal diet or high-fat diet for 12 weeks, following which rats were treated with either (i) atorvastatin (5 or 20 mg/kg/day, p...
April 22, 2018: Life Sciences
https://www.readbyqxmd.com/read/29692056/-effects-of-temperature-on-soil-organic-carbon-mineralization-rate-and-enzyme-kinetic-para-meters-in-temperate-and-subtropical-forests
#18
Shuang Liu, Xin Yu Zhang, Yang Yang, Yu Qian Tang, Zhong Qiang Wang
We examined the effects of temperature on SOC mineralization rate (Cmin ) and enzyme kinetic parameters in soils of two different latitudinal forests, i.e., broad-leaved Korean pine forest in Changbai Mountain at higher latitude and evergreen broad-leaved forest in Dinghu Mountain at lower latitude. The results showed that the soil Cmin increased with temperature, and the Cmin and Q10(Cmin ) of the Changbai Mountain forest soil were higher than those of the Dinghu Mountain forest soil. The maximal rates of velocity (Vmax ) and the half-saturation constant (Km ) of the Changbai Mountain forest soil were higher relative to the Dinghu Mountain soil for both soil β-glucosidase (βG) and N-acetyl-β-D-glucosaminidase (NAG), but being opposite for catalytic efficiency (Vmax /Km )...
February 2018: Ying Yong Sheng Tai Xue Bao, the Journal of Applied Ecology
https://www.readbyqxmd.com/read/29683020/premature-ovarian-failure-short-stature-and-hashimoto-s-disease-in-an-18-year-old-adolescent-girl-with-46-x-i-x-q10
#19
Xiang Hu, Qiao Zhang, Feng Gao, Lu-Lu Chen
Premature ovarian failure (POF) is a heterogeneous condition affecting girls and women. We detected a previously healthy 18-year-old adolescent girl, presented with amenorrhea over six months, as well as circulating levels of estradiol lower decreased and follicle-stimulating hormone (FSH) increased. She was 138 cm tall. Results of laboratory tests and/or ultrasound investigations showed 46, X, i(X)(q10) karyotype and Hashimoto's disease. This case suggests that pubertal onset and progression, as well as karyotype analysis, should be evaluated in girls with Hashimoto's disease and short stature...
April 22, 2018: Gynecological Endocrinology
https://www.readbyqxmd.com/read/29682877/temperature-sensitivity-of-soil-microbial-activity-modeled-by-the-square-root-equation-as-a-unifying-model-to-differentiate-between-direct-temperature-effects-and-microbial-community-adaptation
#20
Erland Bååth
Numerous models have been used to express the temperature sensitivity of microbial growth and activity in soil making it difficult to compare results from different habitats. Q10 still is one of the most common way to express temperature relationships. However, Q10 is not constant with temperature and will differ depending on the temperature interval used for the calculation. The use of the square root (Ratkowsky) relationship between microbial activity (A) and temperature below optimum temperature, √A = a x (T-Tmin ), is proposed as a simple and adequate model that allow for one descriptor, Tmin (a theoretical minimum temperature for growth and activity), to estimate correct Q10-values over the entire in situ temperature interval...
April 23, 2018: Global Change Biology
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