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L-Carnosine

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https://www.readbyqxmd.com/read/29430839/effects-of-l-carnosine-supplementation-on-sleep-disorders-and-disease-severity-in-autistic-children-a-randomized-controlled-clinical-trial
#1
Zahra Mehrazad-Saber, Sorayya Kheirouri, Seyyed-Gholamreza Noorazar
Sleep disorders are frequently reported in autistic patients. Evidences suggest that increased oxidative stress and reduced antioxidants may play a major role in the pathogenesis of these disorders. Carnosine acts as an antioxidant, antitoxic and neuroprotective agent. The aim of this trial study was to examine the effects of carnosine supplementation on the sleep disorders and severity of autism core symptoms in autistic patients. In this double-blind, randomized clinical trial, 43 autistic patients (31 boys and 12 girls; aged 4 to 16 years) were divided into two groups of carnosine and control that received 500 mg of carnosine and 500 mg of placebo per day for two months, respectively...
February 11, 2018: Basic & Clinical Pharmacology & Toxicology
https://www.readbyqxmd.com/read/29427913/l-carnosine-as-an-add-on-to-risperidone-for-treatment-of-negative-symptoms-in-patients-with-stable-schizophrenia-a-double-blind-randomized-placebo-controlled-trial
#2
Alireza Ghajar, Mohammad-Reza Khoaie-Ardakani, Zahara Shahmoradi, Amir-Reza Alavi, Mohsen Afarideh, Mohammad-Reza Shalbafan, Maryam Ghazizadeh-Hashemi, Shahin Akhondzadeh
Since l-carnosine has shown effectiveness in improvement of cognition in patients with schizophrenia, this 8-week, randomized, double-blind, placebo-controlled pilot study was conducted. Sixty-three patients with chronic schizophrenia, who were clinically stable on a stable dose of risperidone, entered the study. The patients were randomly assigned to l-carnosine (2 gr/day in two divided doses) or placebo for eight weeks. The patients were assessed using the positive and negative syndrome scale (PANSS), extrapyramidal symptom rating scale (ESRS), and Hamilton depression rating scale (HDRS) during the study course...
February 3, 2018: Psychiatry Research
https://www.readbyqxmd.com/read/29420997/l-carnosine-supplementation-attenuated-fasting-glucose-triglycerides-advanced-glycation-end-products-and-tumor-necrosis-factor-%C3%AE-levels-in-patients-with-type-2-diabetes-a-double-blind-placebo-controlled-randomized-clinical-trial
#3
Shiva Houjeghani, Sorayya Kheirouri, Esmaeil Faraji, Mohammad Asghari Jafarabadi
Considering the pathologic importance of metabolic disturbances, advanced glycation end products (AGEs), and chronic inflammation in diabetes mellitus and ameliorating potentials of l-carnosine in hampering these detritions and because these effects have not been investigated in patients with type 2 diabetes (T2D) so far, we conducted the current study. We hypothesized that l-carnosine would improve glycemic control, lipid profile, AGE, soluble receptor of AGEs (sRAGE), and inflammatory markers. In a randomized, double-blind, placebo-controlled clinical trial, 54 patients with T2D were recruited and assigned into either intervention group (n=27, receiving 2 capsules of l-carnosine 500 mg each) or control group (n=27)...
January 2018: Nutrition Research
https://www.readbyqxmd.com/read/29275640/lost-in-translation-a-critical-look-at-the-role-that-animal-models-of-obsessive-compulsive-disorder-play-in-current-drug-discovery-strategies
#4
Kurt Leroy Hoffman, Hugo Cano-Ramírez
Obsessive-compulsive disorder (OCD) is a severe neuropsychiatric illness estimated to affect between 1-3% of the population. In today's literature, there are a number well-validated and convincing animal models of OCD described. Areas covered: Herein, the authors look at the role that animal models of OCD (including transgenic models, deer mouse stereotypy, quinpirole sensitization, post-training signal attenuation, and mouse marble burying) have played in determining the current directions of OCD drug discovery...
March 2018: Expert Opinion on Drug Discovery
https://www.readbyqxmd.com/read/29236301/synergistic-effect-of-carnosine-on-browning-of-adipose-tissue-in-exercised-obese-rats-a-focus-on-circulating-irisin-levels
#5
Mona F Schaalan, Basma K Ramadan, Azza H Abd Elwahab
BACKGROUND: The recent appreciation of the energy burning capacity of brown adipose tissue turns it to an attractive target as anti-obesity therapy. OBJECTIVE: to evaluate the effect of L-carnosine on browning of white adipose tissue in exercised obese rats. METHODS: Sixty adult male Wistar albino rats between 7-8 weeks-old weighing 130-150 g were allocated into six groups;(i) normal control rats fed normal diet; (ii) high fat diet (HFD)-induced obese rats, (iii) normal control rats fed normal diet and injected with L-carnosine (250mg/kg), (iv) HFD-rats injected with L-carnosine (250mg/kg),(v): HFD-rats subjected to exercise training; (vi): HFD- rats subjected to exercise training and L-carnosine together...
December 13, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/29064707/l-carnosine-derived-fmoc-tripeptides-forming-ph-sensitive-and-proteolytically-stable-supramolecular-hydrogels
#6
Rita Das Mahapatra, Joykrishna Dey, Richard G Weiss
A series of β-amino acid containing tripeptides has been designed and synthesized in order to develop oligopeptide-based, thermoreversible, pH-sensitive, and proteolytically stable hydrogels. The Fmoc [N-(fluorenyl-9-methoxycarbonyl)]-protected tripeptides were found to produce hydrogels in both pH 7 and 2 buffers at a very low concentration (<0.2% w/v). It has been shown that the Fmoc group plays an important role in the gelation process. Also a dependence of gelation ability on hydrophobicity of the side chain of the Fmoc-protected α-amino acid was observed...
November 3, 2017: Langmuir: the ACS Journal of Surfaces and Colloids
https://www.readbyqxmd.com/read/29053168/fl-926-16-a-novel-bioavailable-carnosinase-resistant-carnosine-derivative-prevents-onset-and-stops-progression-of-diabetic-nephropathy-in-db-db-mice
#7
Carla Iacobini, Stefano Menini, Claudia Blasetti Fantauzzi, Carlo M Pesce, Andrea Giaccari, Enrica Salomone, Annunziata Lapolla, Marica Orioli, Giancarlo Aldini, Giuseppe Pugliese
BACKGROUND AND PURPOSE: The advanced glycation endproducts (AGEs) participate in the pathogenesis of diabetic nephropathy (DN) by promoting renal inflammation and injury. L-carnosine acts as a quencher of the AGE precursors reactive carbonyl species (RCS), but it is rapidly inactivated by carnosinase. This study evaluated the effect of FL-926-16, a carnosinase-resistant and bioavailable carnosine derivative, on the onset and progression of DN in db/db mice. EXPERIMENTAL APPROACH: Adult male db/db mice and coeval db/m controls were left untreated or treated with FL-926-16 (30 mg·kg(-1) body weight) from week 6 to 20 (prevention protocol) or from week 20 to 34 (regression protocol)...
October 20, 2017: British Journal of Pharmacology
https://www.readbyqxmd.com/read/29027815/l-carnosine-as-an-adjunctive-therapy-to-risperidone-in-children-with-autistic-disorder-a-randomized-double-blind-placebo-controlled-trial
#8
Reihaneh Hajizadeh-Zaker, Alireza Ghajar, Bita Mesgarpour, Mohsen Afarideh, Mohammad-Reza Mohammadi, Shahin Akhondzadeh
OBJECTIVES: This study aimed at investigating the efficacy and tolerability of l-carnosine as an add-on to risperidone in the management of children with autism. METHODS: This was a 10-week, randomized, double-blind, placebo-controlled study. Seventy drug-free children aged 4-12 years old with a diagnosis of autism spectrum disorder (ASD), according to the Diagnostic and Statistical Manual of Mental Disorders, fifth edition. (DSM-5) who had an Aberrant Behavior Checklist-Community (ABC-C) scale irritability subscale score of ≥12, entered the study...
February 2018: Journal of Child and Adolescent Psychopharmacology
https://www.readbyqxmd.com/read/28960829/separation-and-determination-of-peptide-metabolite-of-bacillus-licheniformis-in-a-microbial-fuel-cell-by-high-speed-capillary-micellar-electrokinetic-chromatography
#9
Wei Wang, Ruiguang Bai, Xiaoyu Cai, Ping Lin, Lihong Ma
A method using high-speed capillary micellar electrokinetic chromatography and a microbial fuel cell was applied to determine the metabolite of the peptides released by Bacillus licheniformis. Two peptides, l-carnosine and l-alanyl-l-glutamine were used as the substrate to feed Bacillus licheniformis in a microbial fuel cell. The metabolism process of the bacterium was monitored by analyzing the voltage outputs of the microbial fuel cell. A home-made spontaneous injection device was applied to perform high-speed capillary micellar electrokinetic chromatography...
September 27, 2017: Journal of Separation Science
https://www.readbyqxmd.com/read/28932258/the-effect-for-japanese-workers-of-a-self-help-computerized-cognitive-behaviour-therapy-program-with-a-supplement-soft-drink
#10
Kentaro Shirotsuki, Yuji Nonaka, Keiichi Abe, So-Ichiro Adachi, Shohei Adachi, Tomifusa Kuboki, Mutsuhiro Nakao
BACKGROUND: Computerized cognitive behaviour therapy (CCBT) programs can provide a useful self-help approach to the treatment of psychological problems. Previous studies have shown that CCBT has moderate effects on depression, insomnia, and anxiety. The present study investigated whether a supplement drink that includes L-carnosine enhances the effect of CCBT on psychological well-being. METHODS: Eighty-seven participants were randomly allocated to a control group, CCBT, or CCBT with supplement drink...
2017: BioPsychoSocial Medicine
https://www.readbyqxmd.com/read/28926352/zinc-l-carnosine-complex-polaprezinc-for-the-treatment-of-binge-eating-three-case-reports
#11
Kensaku Sakae, Hiroyuki Yanagisawa
No abstract text is available yet for this article.
September 18, 2017: Journal of Clinical Psychopharmacology
https://www.readbyqxmd.com/read/28777736/a-pilot-study-of-the-effect-of-human-breast-milk-on-urinary-metabolome-analysis-in-infants
#12
Hiromichi Shoji, Hikari Taka, Naoko Kaga, Naho Ikeda, Tomohiro Kitamura, Yoshiki Miura, Toshiaki Shimizu
BACKGROUND: This study aimed to examine the nutritional effect of breast feeding on healthy term infants by using urinary metabolome analysis. METHODS: Urine samples were collected from 19 and 14 infants at 1 and 6 months, respectively. Infants were separated into two groups: the breast-fed group receiving <540 mL/week of their intake from formula (n=13 at 1 month; n=9 at 6 months); and the formula-fed group receiving no breast milk (BM) (n=6 at 1 month; n=5 at 6 months)...
August 28, 2017: Journal of Pediatric Endocrinology & Metabolism: JPEM
https://www.readbyqxmd.com/read/28752496/investigations-on-in-vitro-anti-carcinogenic-potential-of-l-carnosine-in-liver-cancer-cells
#13
Minghui Ding, Guihua Jiao, Haizhou Shi, Yanrong Chen
This study was carried out to investigate the anti-carcinogenic effect of L-carnosine in human carcinoma cells (SNU-423). The SNU-423 cancer cells were cultured at a density of 2 × 10(4) cells/well in Dulbecco modified Eagle medium. After 24 h of adherence, the cells were treated with L-carnosine (0.2 and 1 mg/mL) for 48 h. Then, cell viability was assessed by sulforhodamine assay, while mitochondrial dysfunction was measured by fluorescence microscopy using chromatin-specific dye Hoechst 33258. Intracellular levels of ROS were assayed by fluorescence spectroscopy with 2',7'-dichlorofluorescein diacetate (DCFDA)...
July 27, 2017: Cytotechnology
https://www.readbyqxmd.com/read/28744992/the-effect-of-12-weeks-carnosine-supplementation-on-renal-functional-integrity-and-oxidative-stress-in-pediatric-patients-with-diabetic-nephropathy-a-randomized-placebo-controlled-trial
#14
Nancy Samir Elbarbary, Eman Abdel Rahman Ismail, Abdel Rahman El-Naggar, Mahitab Hany Hamouda, Manal El-Hamamsy
BACKGROUND AND OBJECTIVES: Oxidative stress is a significant contributor to the pathogenesis of diabetic nephropathy. Carnosine is a natural radical oxygen species scavenger. We investigated the effect of carnosine as an adjuvant therapy on urinary albumin excretion (UAE), the tubular damage marker alpha 1-microglobulin (A1M), and oxidative stress in pediatric patients with type 1 diabetes and nephropathy. METHODS: This randomized placebo-controlled trial included 90 patients with diabetic nephropathy, despite oral angiotensin-converting enzyme inhibitors (ACE-Is), who were randomly assigned to receive either 12 weeks of carnosine 1 g/day (n = 45), or matching placebo (n = 45)...
July 26, 2017: Pediatric Diabetes
https://www.readbyqxmd.com/read/28697633/zinc-l-carnosine-suppresses-inflammatory-responses-in-lipopolysaccharide-induced-raw-264-7-murine-macrophages-cell-line-via-activation-of-nrf2-ho-1-signaling-pathway
#15
Theng Choon Ooi, Kok Meng Chan, Razinah Sharif
CONTEXT: Zinc L-carnosine (ZnC) is a chelate of Zn and L-carnosine and is used clinically in the treatment of peptic ulcer. OBJECTIVE: In this study, we aim to investigate the involvement of heme oxygenase-1 (HO-1) in the anti-inflammatory effects of ZnC in lipopolysaccharide (LPS)-induced RAW 264.7 murine macrophages. MATERIALS AND METHODS: We used immunoblotting analysis to evaluate the involvement of HO-1 in the anti-inflammatory effects of ZnC and the signaling pathway involved was measured using Dual luciferase reporter assay...
July 11, 2017: Immunopharmacology and Immunotoxicology
https://www.readbyqxmd.com/read/28485008/l-carnosine-as-an-adjuvant-to-fluvoxamine-in-treatment-of-obsessive-compulsive-disorder-a-randomized-double-blind-study
#16
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/28245346/n-acetylcarnosine-nac-drops-for-age-related-cataract
#17
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/28094570/antioxidant-anti-inflammatory-and-genomic-stability-enhancement-effects-of-zinc-l-carnosine-a-potential-cancer-chemopreventive-agent
#18
Theng Choon Ooi, Kok Meng Chan, Razinah Sharif
Cancer is one of the major causes of death worldwide, and the incidence and mortality rates of cancer are expected to rise tremendously in the near future. Despite a better understanding of cancer biology and advancement in cancer management, current strategies in cancer treatment remain costly and ineffective. Hence, instead of putting more efforts to search for new cancer cures, attention has now been shifted to the development of cancer chemopreventive agents as a preventive measure for cancer formation...
February 2017: Nutrition and Cancer
https://www.readbyqxmd.com/read/27822337/on-the-anticataractogenic-effects-of-l-carnosine-is-it-best-described-as-an-antioxidant-metal-chelating-agent-or-glycation-inhibitor
#19
Hamdy Abdelkader, Michael Longman, Raid G Alany, Barbara Pierscionek
Purpose. L-Carnosine is a naturally occurring dipeptide which recently gained popularity as an anticataractogenic agent due to its purported antioxidant activities. There is a paucity of research and conclusive evidence to support such claims. This work offers compelling data that help clarify the mechanism(s) behind the anticataract properties of L-carnosine. Methods. Direct in vitro antioxidant free radical scavenging properties were assayed using three different antioxidant (TEAC, CUPRAC, and DPPH) assays...
2016: Oxidative Medicine and Cellular Longevity
https://www.readbyqxmd.com/read/27801825/a-clinical-trial-about-a-food-supplement-containing-%C3%AE-lipoic-acid-on-oxidative-stress-markers-in-type-2-diabetic-patients
#20
RANDOMIZED CONTROLLED TRIAL
Giuseppe Derosa, Angela D'Angelo, Davide Romano, Pamela Maffioli
The aim of this study was to evaluate the effect of a food supplement containing α-lipoic acid and of a placebo on glyco-metabolic control and on oxidative stress markers in type 2 diabetics. We randomized 105 diabetics to either a supplementation containing 600 mg of α-lipoic acid, 165 mg of L-carnosin, 7.5 mg of zinc, and vitamins of group B, or a placebo, for three months. We evaluated body mass index, fasting plasma glucose (FPG), post-prandial-glucose (PPG), glycated hemoglobin (HbA1c), fasting plasma insulin (FPI), HOMA-index (HOMA-IR), lipid profile, high sensitivity C-reactive protein (Hs-CRP), superoxide dismutase (SOD), glutathione peroxidase (GSH-Px), malondialdehyde (MDA)...
October 28, 2016: International Journal of Molecular Sciences
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