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https://www.readbyqxmd.com/read/28597777/improved-metabolism-and-redox-state-with-a-novel-preservation-solution-implications-for-donor-lungs-after-cardiac-death-dcd
#1
David A Schipper, Anthony V Louis, Destiny S Dicken, Kitsie Johnson, Ryszard T Smolenski, Stephen M Black, Ray Runyan, John Konhilas, Joe G N Garcia, Zain Khalpey
Lungs donated after cardiac death (DCD) are an underutilized resource for a dwindling donor lung transplant pool. Our study investigates the potential of a novel preservation solution, Somah, to better preserve statically stored DCD lungs, for an extended time period, when compared to low-potassium dextran solution (LPD). We hypothesize that Somah is a metabolically superior organ preservation solution for hypothermic statically stored porcine DCD lungs, possibly improving lung transplant outcomes. Porcine DCD lungs (n = 3 per group) were flushed with and submerged in cold preservation solution...
April 2017: Pulmonary Circulation
https://www.readbyqxmd.com/read/28580188/on-the-relationship-between-energy-metabolism-proteostasis-aging-and-parkinson-s-disease-possible-causative-role-of-methylglyoxal-and-alleviative-potential-of-carnosine
#2
REVIEW
Alan R Hipkiss
Recent research shows that energy metabolism can strongly influence proteostasis and thereby affect onset of aging and related disease such as Parkinson's disease (PD). Changes in glycolytic and proteolytic activities (influenced by diet and development) are suggested to synergistically create a self-reinforcing deleterious cycle via enhanced formation of triose phosphates (dihydroxyacetone-phosphate and glyceraldehyde-3-phosphate) and their decomposition product methylglyoxal (MG). It is proposed that triose phosphates and/or MG contribute to the development of PD and its attendant pathophysiological symptoms...
May 2017: Aging and Disease
https://www.readbyqxmd.com/read/28561587/protective-effects-of-functional-chicken-liver-hydrolysates-against-liver-fibrogenesis-antioxidation-anti-inflammation-and-antifibrosis
#3
Po-Ju Chen, Jung-Kai Tseng, Yi-Ling Lin, Yi-Hsieng Samuel Wu, Yi-Tse Hsiao, Jr-Wei Chen, Yi-Chen Chen
Via an assay using an Amino Acid Analyzer, pepsin-digested chicken liver hydrolysates (CLHs) contain taurine (365.57 ± 39.04 mg/100 g), carnosine (14.03 ± 1.98 mg/100 g), and anserine (151.58 ± 27.82 mg/100 g). This study aimed to evaluate whether CLHs could alleviate thioacetamide (TAA)-induced fibrosis. A dose of 100 mg TAA/kg BW significantly increased serum liver damage indices and liver cytokine contents. Cell infiltration and monocytes/macrophages in livers of TAA-treated rats were illustrated by the H&E staining and immunohistochemical analysis of cluster of differentiation 68 (CD68, ED1), respectively...
June 21, 2017: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/28555342/microchip-electrophoresis-with-laser-induced-fluorescence-detection-for-the-determination-of-the-ratio-of-nitric-oxide-to-superoxide-production-in-macrophages-during-inflammation
#4
Giuseppe Caruso, Claudia G Fresta, Joseph M Siegel, Manjula B Wijesinghe, Susan M Lunte
It is well known that excessive production of reactive oxygen and nitrogen species is linked to the development of oxidative stress-driven disorders. In particular, nitric oxide (NO) and superoxide (O2(•-)) play critical roles in many physiological and pathological processes. This article reports the use of 4-amino-5-methylamino-2',7'-difluorofluorescein diacetate and MitoSOX Red in conjunction with microchip electrophoresis and laser-induced fluorescence detection for the simultaneous detection of NO and O2(•-) in RAW 264...
May 29, 2017: Analytical and Bioanalytical Chemistry
https://www.readbyqxmd.com/read/28536640/survival-rates-of-homozygotic-tp53-knockout-rats-as-a-tool-for-preclinical-assessment-of-cancer-prevention-and-treatment
#5
Damian Strzemecki, Magdalena Guzowska, Paweł Grieb
BACKGROUND: The gene that encodes tumor protein p53, Tp53, is mutated or silenced in most human cancers and is recognized as one of the most important cancer drivers. Homozygotic Tp53 knockout mice, which develop lethal cancers early in their lives, are already used in cancer prevention studies, and now Tp53 knockout rats have also been generated. This study assessed feasibility of using homozygous Tp53 knockout rats to evaluate the possible outcome of cancer chemoprevention. METHODS: A small colony of Tp53 knockout rats with a Wistar strain genetic background was initiated and maintained in the animal house at our institution...
2017: Cellular & Molecular Biology Letters
https://www.readbyqxmd.com/read/28534466/validation-of-a-method-for-the-determination-of-balenine-ophidine-in-whale
#6
Stig Valdersnes, Anita Birkenes, Livar Froyland
<p>The aim of this study was to develop and validate a method for the determination of balenine/ophidine (hereafter referred to as “balenine”) in whale extracts and muscle samples from Balaenoptera acutorostrata. Further, the goal was to evaluate the method's applicability for the determination of other histidine-containing dipeptides (HCDs): anserine and carnosine and their amino acids π-methylhistidine, τ-methylhistidine, histidine, and β-alanine. For balenine, the LOD and LOQ were found to be 0...
May 22, 2017: Journal of AOAC International
https://www.readbyqxmd.com/read/28516269/%C3%AE-alanine-intercede-metabolic-recovery-for-amelioration-of-human-cervical-and-renal-tumors
#7
Muthuraman Pandurangan, Gansukh Enkhtaivan, Bhupendra Mistry, Rahul V Patel, Sohyun Moon, Doo Hwan Kim
β-Alanine is a non-essential amino acid and presents as a major component of various sports supplements. It is a non-proteogenic amino acid, formed in vivo by degradation of carnosine, anserine, balenine, and dihydrouracil. The present study was aimed at investigating the anti-tumor effects of β-alanine in renal and cervical tumor cells. Sulforhodamine-B assay and flow cytometric analysis were used to measure cell viability. Lactate dehydrogenase (LDH) expression was analyzed using FITC-conjugated fluorescent antibody...
May 17, 2017: Amino Acids
https://www.readbyqxmd.com/read/28485008/l-carnosine-as-an-adjuvant-to-fluvoxamine-in-treatment-of-obsessive-compulsive-disorder-a-randomized-double-blind-study
#8
Somaye Arabzadeh, Maryam Shahhossenie, Bita Mesgarpour, Farzin Rezaei, Mohammad Reza Shalbafan, Zahra Ghiasi, Shahin Akhondzadeh
BACKGROUND: Dysregulation of glutamate is implicated in the pathogenesis of obsessive-compulsive disorder (OCD). Consistently, glutamate-modulating agents, such as riluzole and memantine have been used in OCD treatment. Previous research has identified some neuroprotective role for L-carnosine potentially via its modulatory effect on glutamate. Here, we assessed the efficacy of L-carnosine as adjuvant to fluvoxamine in OCD treatment. METHODS: Forty-four patients diagnosed with moderate to severe OCD were recruited in a randomized double-blind trial...
May 8, 2017: Human Psychopharmacology
https://www.readbyqxmd.com/read/28475972/multitarget-trehalose-carnosine-conjugates-inhibit-a%C3%AE-aggregation-tune-copper-ii-activity-and-decrease-acrolein-toxicity
#9
Giuseppa Ida Grasso, Francesco Bellia, Giuseppe Arena, Cristina Satriano, Graziella Vecchio, Enrico Rizzarelli
Increasing evidence is accumulating, showing that neurodegenerative disorders are somehow associated with the toxicity of amyloid aggregates, metal ion dyshomeostasis as well as with products generated by oxidative stress. Within the biological oxidation products, acrolein does have a prominent role. A promising strategy to deal with the above neurogenerative disorders is to use multi-functions bio-molecules. Herein, we show how a class of bio-conjugates takes advantage of the antiaggregating, antioxidant and antiglycating properties of trehalose and carnosine...
April 24, 2017: European Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/28426073/ameliorative-effects-of-pepsin-digested-chicken-liver-hydrolysates-on-development-of-alcoholic-fatty-livers-in-mice
#10
Yi-Ling Lin, Szu-Yun Tai, Jr-Wei Chen, Chung-Hsi Chou, Shih-Guei Fu, Yi-Chen Chen
With developments in economics and increasing work loads, alcohol abuse becomes more and more severe, leading to occurrences of alcoholic liver disease (ALD). Pepsin-digested chicken liver hydrolysates (CLHs) contain high amounts of glutamic acid, leucine, lysine, and alanine while the contents of taurine, anserine, and carnosine are also elevated after pepsin hydrolyzation. The objectives of this study were to evaluate the protective effects of CLHs against chronic alcohol consumption. The results indicated that the enlarged (p < 0...
May 24, 2017: Food & Function
https://www.readbyqxmd.com/read/28407658/effect-of-carnosine-on-renal-function-oxidation-and-glycation-products-in-the-kidneys-of-high-fat-diet-streptozotocin-induced-diabetic-rats
#11
Abdurrahman Fatih Aydın, Canan Küçükgergin, İlknur Bingül, Işın Doğan-Ekici, Semra Doğru-Abbasoğlu, Müjdat Uysal
High fat diet (HFD) and low dose of streptozotocin (STZ)-treated rats provide an animal model for type 2 Diabetes Mellitus (T2DM). Oxidative stress plays a role in the development of diabetic complications. Carnosine (CAR) has antioxidant and antiglycating properties. We investigated effects of CAR on renal function, oxidation and glycation products in HFD+STZ-rats. Rats were fed with HFD (60% of total calories from fat) for 4 weeks and then a single dose STZ (40 mg/kg; i.p.) was applied. Rats with blood glucose levels above 200 mg/dL were fed with HFD until the end of the 12(th) week...
April 13, 2017: Experimental and Clinical Endocrinology & Diabetes
https://www.readbyqxmd.com/read/28400979/depression-diabetes-and-dementia-formaldehyde-may-be-a-common-causal-agent-could-carnosine-a-pluripotent-peptide-be-protective
#12
COMMENT
Alan R Hipkiss
No abstract text is available yet for this article.
April 2017: Aging and Disease
https://www.readbyqxmd.com/read/28374107/carnosine-activates-the-creb-pathway-in-caco-2-cells
#13
Kaoru Fujii, Kayoko Abe, Keishi Kadooka, Takashi Matsumoto, Yoshinori Katakura
Imidazole dipeptide, carnosine, is a versatile compound composed of β-Ala and L-His. A recent study showed that carnosine might benefit the treatment of Alzheimer's disease and the maintenance of cognitive function. Based on the observation that carnosine is immediately degraded by serum carnosinase, we hypothesized that carnosine improves brain function by promoting brain-gut interaction. This study sought to present possible mechanisms regulating carnosine-induced activation of brain-gut interaction. We had previously found that carnosine augmented the expression of BDNF in human colorectal cancer cells, thus we became interested in cAMP-responsive element binding protein (CREB), which is a dominant regulator of BDNF transcription...
June 2017: Cytotechnology
https://www.readbyqxmd.com/read/28349727/six-weeks-of-%C3%AE-alanine-supplementation-did-not-enhance-repeated-sprint-ability-or-technical-performances-in-young-elite-basketball-players
#14
Fabio Milioni, Paulo E Redkva, Fabio A Barbieri, Alessandro M Zagatto
Supplementation with β-alanine plays an important role as a precursor of carnosine, the most effective intramuscular buffer, and has been seen as a potential ergogenic aid, especially for high-intensity modalities such as basketball. Thus, the aim of the present study was to investigate the effects of 6 weeks of β-alanine supplementation on repeated sprint ability (RSA) and technical performances in young elite Brazilian basketball players. In total, 27 young basketball players (17±1 years) were randomized into a β-alanine group (Gβ - 6...
January 1, 2017: Nutrition and Health
https://www.readbyqxmd.com/read/28349262/%C3%AE-alanine-supplementation-improves-in-vivo-fresh-and-fatigued-skeletal-muscle-relaxation-speed
#15
Rebecca Louise Jones, Cleveland Thomas Barnett, Joel Davidson, Billy Maritza, William D Fraser, Roger Harris, Craig Sale
PURPOSE: In fresh muscle, supplementation with the rate-limiting precursor of carnosine, β-alanine (BA), results in a decline in muscle half-relaxation time (HRT) potentially via alterations to calcium (Ca(2+)) handling. Accumulation of hydrogen cation (H(+)) has been shown to impact Ca(2+) signalling during muscular contraction, carnosine has the potential to serve as a cytoplasmic regulator of Ca(2+) and H(+) coupling, since it binds to both ions. The present study examined the effect of BA supplementation on intrinsic in-vivo isometric knee extensor force production and muscle contractility in both fresh and fatigued human skeletal muscle assessed during voluntary and electrically evoked (nerve and superficial muscle stimulation) contractions...
May 2017: European Journal of Applied Physiology
https://www.readbyqxmd.com/read/28290048/carnosine-modulates-nitric-oxide-in-stimulated-murine-raw-264-7-macrophages
#16
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
#17
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
#18
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
#19
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...
July 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
#20
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
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