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L-carnitine

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https://www.readbyqxmd.com/read/28199883/acetyl-l-carnitine-protects-dopaminergic-nigrostriatal-pathway-in-6-hydroxydopamine-induced-model-of-parkinson-s-disease-in-the-rat
#1
Siamak Afshin-Majd, Keyhan Bashiri, Zahra Kiasalari, Tourandokht Baluchnejadmojarad, Reza Sedaghat, Mehrdad Roghani
Parkinson's disease (PD) is a movement disorder and the second most common neurodegenerative disease worldwide in which nigrostriatal dopaminergic neurons within substantia nigra pars compacta (SNC) are lost, with clinical motor and non-motor symptoms including bradykinesia, resting tremor, rigidity, stooping posture and cognitive deficits. This study was undertaken to evaluate the neuroprotective potential of acetyl-l-carnitine (ALC) against unilateral striatal 6-hydroxydopamine (6-OHDA)-induced model of PD and to explore some involved mechanisms...
February 12, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28197778/evaluating-effects-of-l-carnitine-on-human-bone-marrow-derived-mesenchymal-stem-cells
#2
Koichi Fujisawa, Taro Takami, Yumi Fukui, Luiz Fernando Quintanilha, Toshihiko Matsumoto, Naoki Yamamoto, Isao Sakaida
Mesenchymal stem cells (MSCs) are multipotent cells showing potential for use in regenerative medicine. Culture techniques that are more stable and methods for the more efficient production of MSCs with therapeutic efficacy are needed. We evaluate the effects of growing bone marrow (Bm)-derived MSCs in the presence of L-carnitine, which is believed to promote lipid metabolism and to suppress apoptosis. The presence of L-carnitine decreased the degree of drug-induced apoptosis and suppressed adipogenic differentiation...
February 14, 2017: Cell and Tissue Research
https://www.readbyqxmd.com/read/28168106/untargeted-metabolomics-approach-for-unraveling-robust-biomarkers-of-nutritional-status-in-fasted-gilthead-sea-bream-sparus-aurata
#3
Ruben Gil-Solsona, Jaime Nácher-Mestre, Leticia Lacalle-Bergeron, Juan Vicente Sancho, Josep Alvar Calduch-Giner, Félix Hernández, Jaume Pérez-Sánchez
A metabolomic study has been performed to identify sensitive and robust biomarkers of malnutrition in farmed fish, using gilthead sea bream (Sparus aurata) as a model. The metabolomic fingerprinting of serum from fasted fish was assessed by means of ultra-high performance liquid chromatography coupled to quadrupole time-of-flight mass spectrometry. More than 15,000 different m/z ions were detected and Partial Least Squares-Discriminant analysis allowed a clear differentiation between the two experimental groups (fed and 10-day fasted fish) with more than 90% of total variance explained by the two first components...
2017: PeerJ
https://www.readbyqxmd.com/read/28163216/possible-promoting-effects-of-melatonin-leptin-and-alcar-on-regeneration-of-the-sciatic-nerve
#4
Mehmet Emin Onger, Suleyman Kaplan, Ömür Gülsüm Deniz, Gamze Altun, Berrin Zuhal Altunkaynak, Kemal Balcı, Stefania Raimondo, Stefano Geuna
Peripheral nerve injury is a widespread and disabling condition that can impair the individual's daily life. Studies involving medications that may positively affect peripheral nerve regeneration are rare. The aim of this study was to investigate new treatments after peripheral nerve injury using various neuroprotectants, melatonin, alcar and leptin, in the regenerative process in an experimental rat model. Wistar albino rats were randomly divided into eight groups containing equal number of animals. Intraperitoneal injection of melatonin (50mg/kg, for 21days), leptin (1mg/kg, for 21days) and acetyl-l-carnitine (50mg/kg, for six weeks) was performed postoperatively...
February 3, 2017: Journal of Chemical Neuroanatomy
https://www.readbyqxmd.com/read/28161696/l-carnitine-ameliorates-the-decrease-of-aquaporin-2-levels-in-rats-with-cisplatin-induced-kidney-injury
#5
Jianjun Gao, Zhaoyan Gu, Min Li, Yongxing Xu, Yuehua Gao, Jiamei Wei, Boran Liang, Yu Na
BACKGROUND: It has been found that L-carnitine ameliorated cisplatin-induced acute kidney injury (AKI) in rats. However, the detailed role of L-carnitine in improving the renal urinary concentration function in cisplatin-induced AKI is not fully understood. METHODS: In this study, 30 Sprague-Dawley rats were divided randomly into 5 groups: control, cisplatin (CIS), L-carnitine (CAR), L-carnitine plus cisplatin (CAR + CIS), and cisplatin plus L-carnitine (CIS + CAR) groups...
February 4, 2017: Nephron
https://www.readbyqxmd.com/read/28152637/l-arginine-in-the-treatment-of-valproate-overdose-five-clinical-cases
#6
Verena Schrettl, Norbert Felgenhauer, Christian Rabe, Malkanthi Fernando, Florian Eyer
BACKGROUND: Valproic acid and its metabolites - particularly valproyl-CoA - are inhibitors of the enzyme N-acetylglutamate synthetase. The amino acid l-arginine can stimulate N-acetylglutamate synthetase activity and could be potentially used therapeutically to correct hyperammonemia caused by valproate therapy or overdose. Severely valproic-acid-poisoned patients are usually treated with l-carnitine or hemodialysis in order to decrease hyperammonemia. We herein report of five cases, in which l-arginine was administered...
February 3, 2017: Clinical Toxicology
https://www.readbyqxmd.com/read/28141959/plasma-l-carnitine-levels-of-obese-and-non-obese-polycystic-ovary-syndrome-patients
#7
Fatih Celik, Mesut Kose, Mehmet Yilmazer, Gülengül N Köken, Dagistan Tolga Arioz, Mine Kanat Pektas
It is well-known that plasma L-carnitine concentrations are significantly decreased in obese individuals. A study showed that L-carnitine concentrations are significantly lower in lean PCOS patients than in lean healthy women. Thus, it has been suggested that lowered L-carnitine is associated with PCOS. This study also showed that the women with PCOS had significantly lower L-carnitine levels than those of the healthy controls. In addition, this study hypothesised that low L-carnitine levels in PCOS patients were associated with obesity and/or insulin resistance...
January 31, 2017: Journal of Obstetrics and Gynaecology: the Journal of the Institute of Obstetrics and Gynaecology
https://www.readbyqxmd.com/read/28139067/the-effects-of-graded-levels-of-calorie-restriction-ix-global-metabolomic-screen-reveals-modulation-of-carnitines-sphingolipids-and-bile-acids-in-the-liver-of-c57bl-6-mice
#8
Cara L Green, Sharon E Mitchell, Davina Derous, Yingchun Wang, Luonan Chen, Jing-Dong J Han, Daniel E L Promislow, David Lusseau, Alex Douglas, John R Speakman
Calorie restriction (CR) remains the most robust intervention to extend lifespan and improve health span. Using a global mass spectrometry-based metabolomic approach, we identified 193 metabolites that were significantly differentially expressed (SDE) in the livers of C57BL/6 mice, fed graded levels of CR (10, 20, 30 and 40% CR) compared to mice fed ad libitum for 12 h a day. The differential expression of metabolites also varied with the different feeding groups. Pathway analysis revealed that graded CR had an impact on carnitine synthesis and the carnitine shuttle pathway, sphingosine-1-phosphate (S1P) signalling and methionine metabolism...
January 31, 2017: Aging Cell
https://www.readbyqxmd.com/read/28138186/relationship-of-seminal-free-l-carnitine-with-functional-spermatozoal-characteristics-results-from-an-observational-study-conducted-in-a-tertiary-care-hospital-of-karachi-pakistan
#9
Syed Danish Haseen Ahmed, Shahid Ahsan, Tehseen Iqbal, Syed Intesar Ahmed Burney
OBJECTIVE: To investigate the relationship of seminal free L-carnitine with functional spermatozoal characteristics. METHODS: This observational study was conducted at the Jinnah Postgraduate Medical Centre, Karachi, from August 2009 to June 2013, and comprised fertile and infertile subjects. Semen analysis was performed and reported for its volume, sperm count, motility and morphology according to the World Health Organisation's guidelines. Seminal free L-carnitine was estimated by high-performance liquid chromatography...
February 2017: JPMA. the Journal of the Pakistan Medical Association
https://www.readbyqxmd.com/read/28129603/metabolomics-for-informing-adverse-outcome-pathways-androgen-receptor-activation-and-the-pharmaceutical-spironolactone
#10
J M Davis, D R Ekman, D M Skelton, C A LaLone, G T Ankley, J E Cavallin, D L Villeneuve, T W Collette
One objective in developing adverse outcome pathways (AOPs) is to connect biological changes that are relevant to risk assessors (i.e., fecundity) to molecular and cellular-level alterations that might be detectable at earlier stages of a chemical exposure. Here, we examined biochemical responses of fathead minnows (Pimephales promelas) to inform an AOP relevant to spironolactone's activation of the androgen receptor, as well as explore other biological impacts possibly unrelated to this receptor. Liquid chromatography with high resolution mass spectrometry (LC-MS) was used to measure changes in endogenous polar metabolites in livers of male and female fish that were exposed to five water concentrations of spironolactone (0, 0...
March 2017: Aquatic Toxicology
https://www.readbyqxmd.com/read/28123134/effects-of-combined-treatment-with-branched-chain-amino-acids-citric-acid-l-carnitine-coenzyme-q10-zinc-and-various-vitamins-in-tumor-bearing-mice
#11
Hiroko Awa, Akihiko Futamura, Takashi Higashiguchi, Akihiro Ito, Naoharu Mori, Miyo Murai, Hiroshi Ohara, Takeshi Chihara, Takaaki Kaneko
A functional dietary supplement (FDS) containing Coenzyme Q10, Branched-chain Amino Acids and L-carnitine was administered to tumor-bearing mice, investigating its effects on tumor and muscle tissues. Experiment (A): B16 melanoma cells were implanted subcutaneously into the right side of the abdomen of 8- to 9-week-old C57BL/6J mice. The mice were divided into two groups: a FDS group that received oral administration of FDS (n=10), and a control group that received oral administration of glucose (n=10).The moribund condition was used as the endpoint, and median survival time was determined...
January 26, 2017: Biological & Pharmaceutical Bulletin
https://www.readbyqxmd.com/read/28120718/nutraceuticals-and-dietary-supplements-to-improve-quality-of-life-and-outcomes-in-heart-failure-patients
#12
Arrigo Fg Cicero, Alessandro Colletti
BACKGROUND: Heart failure (HF) is a complex clinical syndrome that can result from any structural or functional cardiac disorder that impairs the ability of the ventricle to fill or eject blood. It represents a major public health issue, with a prevalence of over 23 million worldwide. The lifetime risk of developing HF is one in five and the most important risk factors identified are ischemic heart disease, hypertension, smoking, obesity and diabetes. Preventive approaches are based on improvements of lifestyle, associated with pharmacological therapy...
January 24, 2017: Current Pharmaceutical Design
https://www.readbyqxmd.com/read/28115977/efficacy-of-a-novel-formulation-of-l-carnitine-creatine-and-leucine-on-lean-body-mass-and-functional-muscle-strength-in-healthy-older-adults-a-randomized-double-blind-placebo-controlled-study
#13
Malkanthi Evans, Najla Guthrie, John Pezzullo, Toran Sanli, Roger A Fielding, Aouatef Bellamine
BACKGROUND: Progressive decline in skeletal muscle mass and function are growing concerns in an aging population. Diet and physical activity are important for muscle maintenance but these requirements are not always met. This highlights the potential for nutritional supplementation. As a primary objective, we sought to assess the effect of a novel combination of L-Carnitine, creatine and leucine on muscle mass and performance in older subjects. METHOD: Forty-two healthy older adults aged 55-70 years were randomized to receive either a novel L-Carnitine (1500 mg), L-leucine (2000 mg), creatine (3000 mg), Vitamin D3 (10 μg) (L-Carnitine-combination) product (n = 14), L-Carnitine (1500 mg) (n = 14), or a placebo (n = 14) for eight weeks...
2017: Nutrition & Metabolism
https://www.readbyqxmd.com/read/28115274/toxicity-of-the-amphetamine-metabolites-4-hydroxyamphetamine-and-4-hydroxynorephedrine-in-human-dopaminergic-differentiated-sh-sy5y-cells
#14
R Feio-Azevedo, V M Costa, L M Ferreira, P S Branco, F C Pereira, M L Bastos, F Carvalho, J P Capela
Amphetamine (AMPH) is a psychostimulant used worldwide by millions of patients in the clinical treatment of attention deficit hyperactivity disorder, narcolepsy or even obesity, and is also a drug of abuse. 4-Hydroxynorephedrine (4-OHNE) and 4-hydroxyamphetamine (4-OHAMPH) are two major metabolites known to persist in the brain longer than AMPH. The contribution of AMPH metabolites for its neurotoxicity is undetermined. We evaluated the toxicity of AMPH and its metabolites 4-OHNE and 4-OHAMPH, obtained by chemical synthesis, in human dopaminergic differentiated SH-SY5Y neurons...
January 20, 2017: Toxicology Letters
https://www.readbyqxmd.com/read/28105133/a-prospective-study-to-evaluate-the-efficacy-and-safety-of-oral-acetyl-l-carnitine-for-the-treatment-of-chemotherapy-induced-peripheral-neuropathy
#15
Yuanjue Sun, Yongqian Shu, Baorui Liu, Ping Liu, Changping Wu, Rongsheng Zheng, Xiaohua Zhang, Zhixiang Zhuang, Yongchuan Deng, Leizhen Zheng, Qing Xu, Bin Jiang, Xuenong Ouyang, Jianfei Gao, Nong Xu, Xiaoyi Li, Su Jiang, Chaofan Liang, Yang Yao
The present study aimed to evaluate the efficacy and safety of acetyl-L-carnitine (ALC) for the treatment of chemotherapy-induced peripheral neuropathy (CIPN). The study was carried out as a prospective, randomized, double-blind, placebo-controlled and paralleled clinical study. A total of 239 patients with CIPN were selected as the study subjects. Of the 239 subjects, 118 subjects received 3 g/day ALC orally for 8 weeks and 121 received a placebo. The primary endpoint was improvement of peripheral neuropathy by at least one grade...
December 2016: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28102299/systemic-regulation-of-l-carnitine-in-nutritional-metabolism-in-zebrafish-danio-rerio
#16
Jia-Min Li, Ling-Yu Li, Xun Qin, Li-Jun Ning, Dong-Liang Lu, Dong-Liang Li, Mei-Ling Zhang, Xin Wang, Zhen-Yu Du
Excess fat accumulation has been observed widely in farmed fish; therefore, efficient lipid-lowering factors have obtained high attention in the current fish nutrition studies. Dietary L-carnitine can increase fatty acid β-oxidation in mammals, but has produced contradictory results in different fish species. To date, the mechanisms of metabolic regulation of L-carnitine in fish have not been fully determined. The present study used zebrafish to investigate the systemic regulation of nutrient metabolism by dietary L-carnitine supplementation...
January 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28101459/venlafaxine-induced-cytotoxicity-towards-isolated-rat-hepatocytes-involves-oxidative-stress-and-mitochondrial-lysosomal-dysfunction
#17
Elham Ahmadian, Hossein Babaei, Alireza Mohajjel Nayebi, Aziz Eftekhari, Mohammad Ali Eghbal
Purpose: Depression is a public disorder worldwide. Despite the widespread use of venlafaxine in the treatment of depression, it has been associated with the incidence of toxicities. Hence, the goal of the current investigation was to evaluate the mechanisms of venlafaxine-induced cell death in the model of the freshly isolated rat hepatocytes. Methods: Collagenase-perfused rat hepatocytes were treated with venlafaxine and other agents. Cell damage, reactive oxygen species (ROS) formation, lipid peroxidation, mitochondrial membrane potential decline, lysosomal damage, glutathione (GSH) level were analyzed...
December 2016: Advanced Pharmaceutical Bulletin
https://www.readbyqxmd.com/read/28079870/impact-of-l-carnitine-supplementation-on-metabolic-profiles-in-premature-infants
#18
R H Clark, D H Chace, A R Spitzer
OBJECTIVE: To describe the influence that of l-carnitine supplementation on acylcarnitine (AC) profiles and hospital outcomes in premature infants. STUDY DESIGN: This study is a secondary analysis of previously reported work. Metabolic profiles were obtained using standard newborn techniques on infants born between 23 and 31 completed weeks of gestation. The profiles were drawn within the first 24 h after birth and on approximately days 7, 28 and 42 of life, or at the time of discharge...
January 12, 2017: Journal of Perinatology: Official Journal of the California Perinatal Association
https://www.readbyqxmd.com/read/28070248/childhood-cardiomyopathies-a-study-in-tertiary-care-hospital-in-upper-egypt
#19
Mohamed Abd Elaal Bakeet, Montaser Mohamed Mohamed, Ahmed Ahmed Allam, Rania Gamal
INTRODUCTION: Cardiomyopathy (CMP) is defined by the World Health Organization (WHO) as a disease of the myocardium associated with cardiac dysfunction. An understanding of CMP is very important, as it is a common cause of heart failure in children, and the most common indication for heart transplantation in children older than one year, but data on CMP in Egypt are scarce. The aim of this study was to determine the number, risk factors, clinical presentation, complications and outcome of different types of childhood cardiomyopathies in Sohag University Hospital...
November 2016: Electronic Physician
https://www.readbyqxmd.com/read/28065453/protective-effects-of-l-carnitine-against-delayed-graft-function-in-kidney-transplant-recipients-a-pilot-randomized-double-blinded-placebo-controlled-clinical-trial
#20
Atefeh Jafari, Mohammad-Reza Khatami, Simin Dashti-Khavidaki, Mahboob Lessan-Pezeshki, Alireza Abdollahi, Azadeh Moghaddas
OBJECTIVE: Delayed graft function (DGF) is an early complication after deceased donor kidney transplantation with significant adverse effects on graft outcomes. Ischemia-reperfusion injury during transplantation is a major cause of DGF. Tissue concentrations of carnitine, an antioxidant and regulator of cellular energy supply, decrease in the kidney following ischemia-reperfusion insult. Based on promising animal data, this study evaluated the possible protective effect of L-carnitine against DGF...
January 3, 2017: Journal of Renal Nutrition
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