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Carnosine

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https://www.readbyqxmd.com/read/28290048/carnosine-modulates-nitric-oxide-in-stimulated-murine-raw-264-7-macrophages
#1
Giuseppe Caruso, Claudia G Fresta, Francisco Martinez-Becerra, Lopalco Antonio, Ryan T Johnson, Richard P S de Campos, Joseph M Siegel, Manjula B Wijesinghe, Giuseppe Lazzarino, Susan M Lunte
Excess nitric oxide (NO) production occurs in several pathological states, including neurodegeneration, ischemia, and inflammation, and is generally accompanied by increased oxidative/nitrosative stress. Carnosine [β-alanine-histidine (β-Ala-His)] has been reported to decrease oxidative/nitrosative stress-associated cell damage by reducing the amount of NO produced. In this study, we evaluated the effect of carnosine on NO production by murine RAW 264.7 macrophages stimulated with lipopolysaccharides + interferon-γ...
March 13, 2017: Molecular and Cellular Biochemistry
https://www.readbyqxmd.com/read/28283328/carnosine-ameliorates-liver-fibrosis-and-hyperammonemia-in-cirrhotic-rats
#2
Akram Jamshidzadeh, Reza Heidari, Zahra Latifpour, Mohammed Mehdi Ommati, Narges Abdoli, Somayeh Mousavi, Negar Azarpira, Azita Zarei, Mahdi Zarei, Behnam Asadi, Mojgan Abasvali, Yasaman Yeganeh, Faezeh Jafari, Arastoo Saeedi, Asma Najibi, Elnaz Mardani
AIM: Chronic liver injury and cirrhosis leads to liver failure. Hyperammonemia is a deleterious consequence of liver failure. On the other hand, oxidative stress seems to play a pivotal role in the pathogenesis of liver fibrosis as well as in the cytotoxic mechanism of ammonia. There is no promising therapeutic agent against ammonia-induced complications. The present study was conducted to evaluate the role of carnosine (CA) administration on liver pathological changes, elevated plasma ammonia, and its consequent events in cirrhotic rats...
March 7, 2017: Clinics and Research in Hepatology and Gastroenterology
https://www.readbyqxmd.com/read/28281693/carnosine-attenuates-the-development-of-both-type-2-diabetes-and-diabetic-nephropathy-in-btbr-ob-ob-mice
#3
Thomas Albrecht, Maaike Schilperoort, Shiqi Zhang, Jana D Braun, Jiedong Qiu, Angelica Rodriguez, Diego O Pastene, Bernhard K Krämer, Hannes Köppel, Hans Baelde, Emile de Heer, Alessandra Anna Altomare, Luca Regazzoni, Alessandra Denisi, Giancarlo Aldini, Jacob van den Born, Benito A Yard, Sibylle J Hauske
We previously demonstrated that polymorphisms in the carnosinase-1 gene (CNDP1) determine the risk of nephropathy in type 2 diabetic patients. Carnosine, the substrate of the enzyme encoded by this gene, is considered renoprotective and could possibly be used to treat diabetic nephropathy (DN). In this study, we examined the effect of carnosine treatment in vivo in BTBR (Black and Tan, BRachyuric) ob/ob mice, a type 2 diabetes model which develops a phenotype that closely resembles advanced human DN. Treatment of BTBR ob/ob mice with 4 mM carnosine for 18 weeks reduced plasma glucose and HbA1c, concomitant with elevated insulin and C-peptide levels...
March 10, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28276708/the-effect-of-carnosine-on-methylglyoxal-induced-oxidative-stress-in-rats
#4
Zülbiye Yılmaz, Esra Betül Kalaz, A Fatih Aydın, Merva Soluk-Tekkeşin, Semra Doğru-Abbasoğlu, Müjdat Uysal, Necla Koçak-Toker
Methylglyoxal (MG) is generated from glycolytic metabolites, lipid peroxidation, glucose autooxidation and protein glycation. It is a prooxidant inducing oxidative stress and formation of advanced glycation end products (AGE). Effect of carnosine (CAR) as an antioxidant on toxicity due to MG has generated interest. In this study, rats were given incrementally increased doses (100-300 mg/kg) of MG in drinking water for ten weeks. CAR (250 mg/kg i.p.) was administered with MG. Plasma thiobarbituric reactive substances (TBARS), protein carbonyl (PC), advanced oxidation protein products (AOPP) and AGE levels were elevated by MG, and CAR decreased PC, AOPP and AGE levels...
March 6, 2017: Archives of Physiology and Biochemistry
https://www.readbyqxmd.com/read/28266762/downregulation-of-hif1-%C3%AE-smad-2-akt-and-bax-gene-expression-in-sodium-nitrite-induced-lung-injury-via-some-antioxidants
#5
Mai O Kadry, Hanaa Mahmoud Ali
The aim of the current study is to evaluate the efficacy of pretreatment with either l-arginine (L-arg) or Carnosine (Car) and their combination in ameliorating some of the biochemical indices induced in the lung of sodium nitrite (NaNO2 )-intoxicated rats. The results revealed that NaNO2 significantly increased serum tumor necrosis factor-α, C-reactive protein, heat shock proteins-70, vascular endothelial growth factor, and Interleukin 6. Moreover, transforming growth factor-β, hypoxia-inducible factor, Smad-2, Protein Kinase B (AKT), and Bax were overexpressed, whereas Bcl2 protein was downregulated compared with the normoxic group...
March 7, 2017: Journal of Biochemical and Molecular Toxicology
https://www.readbyqxmd.com/read/28245346/n-acetylcarnosine-nac-drops-for-age-related-cataract
#6
REVIEW
Vincent Dj-P Dubois, Andrew Bastawrous
BACKGROUND: Cataract is the leading cause of world blindness. The only available treatment for cataract is surgery. Surgery requires highly-trained individuals with expensive operating facilities. Where these are not available, patients go untreated. A form of treatment that did not involve surgery would be a useful alternative for people with symptomatic cataract who are unable or unwilling to undergo surgery. If an eye drop existed that could reverse or even prevent progression of cataract, then this would be a useful additional treatment option...
February 28, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/28205623/preventive-effects-of-carnosine-on-lipopolysaccharide-induced-lung-injury
#7
Ken-Ichiro Tanaka, Toshifumi Sugizaki, Yuki Kanda, Fumiya Tamura, Tomomi Niino, Masahiro Kawahara
Acute respiratory distress syndrome (ARDS) is a potentially devastating form of acute lung injury, which involves neutrophilic inflammation and pulmonary cell death. Reactive oxygen species (ROS) play important roles in ARDS development. New compounds for inhibiting the onset and progression of ARDS are required. Carnosine (β-alanyl-L-histidine) is a small di-peptide with numerous activities, including antioxidant effects, metal chelation, proton buffering capacity and the inhibition of protein carbonylation and glycoxidation...
February 16, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28183595/carbon-nanotube-as-a-carrier-in-drug-delivery-system-for-carnosine-dipeptide-a-computer-simulation-study
#8
Sepideh Ketabi, Leila Rahmani
Biological application of carbon nanotube in drug delivery is our main concern in this investigation. For this purpose interaction of carnosine and carbon nanotube was studied in both gas phase and separately in aqueous media. Three possible interactions of carnosine dipeptide with (5,5) carbon nanotube in physiological media were considered. At first step each species were modeled using quantum mechanical calculations, in the next step, their properties in aqueous solution were studied by applying Monte Carlo simulations...
April 1, 2017: Materials Science & Engineering. C, Materials for Biological Applications
https://www.readbyqxmd.com/read/28173624/evidence-for-the-role-of-histaminergic-pathways-in-neuroprotective-mechanism-of-ischemic-postconditioning-in-mice
#9
Indresh Kaur, Amit Kumar, Amteshwar S Jaggi, Nirmal Singh
The present study has been designed to investigate the possible role of histaminergic pathway in neuroprotective mechanism of ischemic postconditioning (iPoCo). Bilateral carotid artery occlusion (BCAO) for 12 min followed by reperfusion for 24 hr was employed to produce I/R induced cerebral injury in NIH mice. iPoCo involving three episodes of carotid artery occlusion and reperfusion of 10 sec each, was instituted immediately after BCAO just before prolonged reperfusion. Cerebral infarct size was measured using triphenyltetrazolium chloride staining...
February 7, 2017: Fundamental & Clinical Pharmacology
https://www.readbyqxmd.com/read/28161798/behavioral-and-inflammatory-response-in-animals-exposed-to-a-low-pressure-blast-wave-and-supplemented-with-%C3%AE-alanine
#10
Jay R Hoffman, Amitai Zuckerman, Omri Ram, Oren Sadot, Jeffrey R Stout, Ishay Ostfeld, Hagit Cohen
This study investigated the benefit of β-alanine (BA) supplementation on behavioral and cognitive responses relating to mild traumatic brain injury (mTBI) and post-traumatic stress disorder (PTSD) in rats exposed to a low-pressure blast wave. Animals were fed a normal diet with or without (PL) BA supplementation (100 mg kg(-1)) for 30-day, prior to being exposed to a low-pressure blast wave. A third group of animals served as a control (CTL). These animals were fed a normal diet, but were not exposed to the blast...
February 4, 2017: Amino Acids
https://www.readbyqxmd.com/read/28159969/targeted-metabolomics-reveals-early-dominant-optic-atrophy-signature-in-optic-nerves-of-opa1delttag-mice
#11
Juan Manuel Chao de la Barca, Gilles Simard, Emmanuelle Sarzi, Tanguy Chaumette, Guillaume Rousseau, Stéphanie Chupin, Cédric Gadras, Lydie Tessier, Marc Ferré, Arnaud Chevrollier, Valérie Desquiret-Dumas, Naïg Gueguen, Stéphanie Leruez, Christophe Verny, Dan Miléa, Dominique Bonneau, Patrizia Amati-Bonneau, Vincent Procaccio, Christian Hamel, Guy Lenaers, Pascal Reynier, Delphine Prunier-Mirebeau
Purpose: Dominant optic atrophy (MIM No. 165500) is a blinding condition related to mutations in OPA1, a gene encoding a large GTPase involved in mitochondrial inner membrane dynamics. Although several mouse models mimicking the disease have been developed, the pathophysiological mechanisms responsible for retinal ganglion cell degeneration remain poorly understood. Methods: Using a targeted metabolomic approach, we measured the concentrations of 188 metabolites in nine tissues, that is, brain, three types of skeletal muscle, heart, liver, retina, optic nerve, and plasma in symptomatic 11-month-old Opa1delTTAG/+ mice...
February 1, 2017: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/28157726/twenty-four-weeks-%C3%AE-alanine-supplementation-on-carnosine-content-related-genes-and-exercise
#12
Bryan Saunders, Vitor de Salles Painelli, Luana Farias de Oliveira, Vinicius da Eira Silva, Rafael Pires da Silva, Luiz Riani, Mariana Franchi, Lívia de Souza Gonçalves, Roger Charles Harris, Hamilton Roschel, Guilherme Giannini Artioli, Craig Sale, Bruno Gualano
INTRODUCTION: Skeletal muscle carnosine content can be increased through β-alanine supplementation, but the maximum increase achievable with supplementation is unknown. No study has investigated the effects of prolonged supplementation on carnosine-related genes or exercise capacity. PURPOSE: To investigate the effects of 24-weeks of β-alanine supplementation on muscle carnosine content, gene expression and high-intensity cycling capacity (CCT110%). METHODS: Twenty-five active males were supplemented with 6...
December 6, 2016: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/28149008/transforming-growth-factor-%C3%AE-1-smad3-signaling-and-redox-status-in-experimentally-induced-nephrotoxicity-impact-of-carnosine
#13
Walaa Arafa Keshk, Mohamed Alaa Katary
Exposure to various organic compounds including drugs and environmental toxins causes cellular damage through generation of free radicals. Carnosine a dipeptide was used in this study to evaluate its effect against CCl4-induced nephrotoxicity. Sixty male albino rats were involved in this study and were equally divided into four groups. CCl4 (3 ml/kg body weight; biweekly for 4 weeks) was given to group II and III. Carnosine (10 mg/kg body weight; once daily for 4 weeks) was given to group III and VI. Transforming growth factor-β1 (TGF-β1) level by immunoassay and Smad3 mRNA level by real-time PCR were estimated in addition to cytochrome P450 2E1 (CYP2E1) activity, renal functions, redox status assessment and histopathological examination of the kidney...
March 2017: Indian Journal of Clinical Biochemistry: IJCB
https://www.readbyqxmd.com/read/28142304/correction-to-abdel-baky-fadda-al-rasheed-al-rasheed-mohamed-and-yacoub-neuroprotective-effect-of-carnosine-and-cyclosporine-a-against-inflammation-apoptosis-and-oxidative-brain-damage-after-closed-head-injury-in-immature-rats
#14
https://www.readbyqxmd.com/read/28131569/histidine-deficiency-has-a-negative-effect-on-lactational-performance-of-dairy-cows
#15
F Giallongo, M T Harper, J Oh, C Parys, I Shinzato, A N Hristov
A 10-wk randomized complete block design experiment with 24 Holstein cows was conducted to investigate the long-term effects of feeding a His-deficient diet on lactational performance of dairy cows. Cows were blocked by days in milk, milk yield, and parity, and randomly assigned to 1 of the following 2 treatments: (1) His-adequate diet [HAD; providing +166 g/d over metabolizable protein (MP) requirements, according to the National Research Council (2001) and digestible His (dHis) supply of 68 g/d, or 2.5% of MP requirements] and (2) His-deficient diet (HDD; +37 g/d over MP requirements and dHis supply of 49 g/d, or 1...
January 25, 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/28122782/a-metabolomic-study-of-biomarkers-of-meat-and-fish-intake
#16
William Cheung, Pekka Keski-Rahkonen, Nada Assi, Pietro Ferrari, Heinz Freisling, Sabina Rinaldi, Nadia Slimani, Raul Zamora-Ros, Milena Rundle, Gary Frost, Helena Gibbons, Eibhlin Carr, Lorraine Brennan, Amanda J Cross, Valeria Pala, Salvatore Panico, Carlotta Sacerdote, Domenico Palli, Rosario Tumino, Tilman Kühn, Rudolf Kaaks, Heiner Boeing, Anna Floegel, Francesca Mancini, Marie-Christine Boutron-Ruault, Laura Baglietto, Antonia Trichopoulou, Androniki Naska, Philippos Orfanos, Augustin Scalbert
BACKGROUND: Meat and fish intakes have been associated with various chronic diseases. The use of specific biomarkers may help to assess meat and fish intake and improve subject classification according to the amount and type of meat or fish consumed. OBJECTIVE: A metabolomic approach was applied to search for biomarkers of meat and fish intake in a dietary intervention study and in free-living subjects from the European Prospective Investigation into Cancer and Nutrition (EPIC) study...
January 25, 2017: American Journal of Clinical Nutrition
https://www.readbyqxmd.com/read/28120718/nutraceuticals-and-dietary-supplements-to-improve-quality-of-life-and-outcomes-in-heart-failure-patients
#17
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/28120335/effects-of-dietary-supplementation-with-carnosine-on-growth-performance-meat-quality-antioxidant-capacity-and-muscle-fiber-characteristics-in-broiler-chickens
#18
Jiahui Cong, Lin Zhang, Jiaolong Li, Shuhao Wang, Feng Gao, Guanghong Zhou
BACKGROUND: The effects of dietary carnosine were evaluated on the growth performance, meat quality, antioxidant capacity and muscle fiber characteristics in thigh muscle of 256 one-day-old male broilers that were assigned to 4 diets: basal diet supplemented with 0, 100, 200 or 400 mg/kg carnosine during 42-d experiment, respectively. RESULT: Carnosine concentration and carnosine synthase expression in thigh muscle were linearly increased (P < 0.05), and the feed:gain was decreased (P < 0...
January 25, 2017: Journal of the Science of Food and Agriculture
https://www.readbyqxmd.com/read/28117708/methylglyoxal-mediated-stress-correlates-with-high-metabolic-activity-and-promotes-tumor-growth-in-colorectal-cancer
#19
Barbara Chiavarina, Marie-Julie Nokin, Justine Bellier, Florence Durieux, Noëlla Bletard, Félicie Sherer, Pierre Lovinfosse, Olivier Peulen, Laurine Verset, Romain Dehon, Pieter Demetter, Andrei Turtoi, Koji Uchida, Serge Goldman, Roland Hustinx, Philippe Delvenne, Vincent Castronovo, Akeila Bellahcène
Cancer cells generally rely on aerobic glycolysis as a major source of energy. Methylglyoxal (MG), a dicarbonyl compound that is produced as a side product during glycolysis, is highly reactive and induces the formation of advanced glycation end-products that are implicated in several pathologies including cancer. All mammalian cells have an enzymatic defense against MG composed by glyoxalases GLO1 and GLO2 that converts MG to d-lactate. Colorectal cancer (CRC) is one of the most frequently occurring cancers with high morbidity and mortality...
January 21, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28115195/carnosine-modulates-glutamine-synthetase-expression-in-senescent-astrocytes-exposed-to-oxygen-glucose-deprivation-recovery
#20
Xiaojie Shi, Bingyu Wang, Yuan Liu, Jingjing Zhang, Yuyan Huang, Pei Cao, Yao Shen, Jianxin Lyu
Carnosine is believed to be neuroprotective in cerebral ischemia. However, few reports concern its function on senescent astrocytes during cerebral ischemia. The aim of this study was to investigate the effects of carnosine on cell damage and glutamine synthetase (GS) expression in D-galactose-induced senescent astrocytes exposed to oxygen-glucose deprivation/recovery (OGD/R). The results showed that OGD/R caused massive cell damage and a significant decrease in GS expression both in the young and senescent astrocytes...
January 20, 2017: Brain Research Bulletin
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