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https://www.readbyqxmd.com/read/28340474/studying-the-effects-of-natural-extracts-with-metabolomics-a-longitudinal-study-on-the-supplementation-of-healthy-rats-with-polygonum-cuspidatum-sieb-et-zucc
#1
Gregorio Peron, Jalal Uddin, Matteo Stocchero, Stefano Mammi, Elisabetta Schievano, Stefano Dall'Acqua
BACKGROUND: A longitudinal study was performed to evaluate the effects of Polygonum cuspidatum extract (standardized at 20% resveratrol) supplementation on healthy rats. The effects were explored by monitoring urinary metabolome changes using UPLC-HRMS and (1)H NMR-based approaches. The aim of the study was to explore the effects of P. cuspidatum supplementation on a healthy animal model using metabolomics, in order to determine possible modes of action and obtain information on bioactivity...
March 16, 2017: Journal of Pharmaceutical and Biomedical Analysis
https://www.readbyqxmd.com/read/28340320/protective-effects-of-alpha-lipoic-acid-on-methotrexate-induced-oxidative-lung-injury-in-rats
#2
Huseyin Arpag, Mehmet Gül, Yusuf Aydemir, Nurhan Atilla, Birgül Yiğitcan, Tugrul Cakir, Cemal Polat, Özer Þehirli, Muhammet Sayan
OBJECTIVE: Oxidative stress is one of the major causes of methotrexate induced lung injury (MILI). Alpha-lipoic acid (ALA), which occurs naturally in human food, has antioxidative and anti-inflammatory activities. The aim of this study was to research the potential protective role of ALA on MILI in rats. METHODS: Twenty one rats were randomly subdivided into three groups: control (group I), methotrexate (MTX) treated (group II), and MTX+ALA treated (group III). Lung injury was performed with a single dose of MTX (20 mg/kg) to groups 2 and 3...
March 24, 2017: Journal of Investigative Surgery: the Official Journal of the Academy of Surgical Research
https://www.readbyqxmd.com/read/28340151/effect-of-excess-dietary-fluoride-on-laying-performance-and-antioxidant-capacity-of-laying-hens
#3
L P Miao, M Y Zhou, X Y Zhang, C Yuan, X Y Dong, X T Zou
The objective of this study was to investigate the effects of excess dietary fluoride (F) on laying performance and antioxidant capacity of laying hens. A total of 576 laying hens, 51 wk old, was randomly divided into 6 groups, each of which included 6 replicates of 16 hens. Graded amounts of sodium fluoride (NaF) were added to the basal diet to achieve concentrations of 16 (control), 200, 400, 600, 800, and 1,000 mg/kg F, respectively. Dietary F at 1,000 mg/kg significantly decreased ADFI, laying rate, and average egg weight, and increased feed conversion ratio (FCR) (P < 0...
March 11, 2017: Poultry Science
https://www.readbyqxmd.com/read/28339984/the-link-between-phenotype-and-fatty-acid-metabolism-in-advanced-chronic-kidney-disease
#4
Dan-Qian Chen, Hua Chen, Lin Chen, Nosratola D Vaziri, Ming Wang, Xiang-Ri Li, Ying-Yong Zhao
Background.: The kidney plays a central role in elimination of metabolic waste products and regulation of low-molecular weight metabolites via glomerular filtration, tubular secretion and reabsorption. Disruption of these processes results in profound changes in the biochemical milieu of the body fluids, which contribute to complications of chronic kidney disease (CKD) by inducing cytotoxicity and inflammation. Insight into the changes of the composition of metabolites and dysregulation of target genes and proteins enhances the understanding of the pathophysiology of CKD and its complications, and the development of novel therapeutic strategies...
March 1, 2017: Nephrology, Dialysis, Transplantation
https://www.readbyqxmd.com/read/28339968/optimization-of-dietary-zinc-for-egg-production-and-antioxidant-capacity-in-chinese-egg-laying-ducks-fed-a-diet-based-on-corn-wheat-bran-and-soybean-meal
#5
W Chen, S Wang, H X Zhang, D Ruan, W G Xia, Y Y Cui, C T Zheng, Y C Lin
The aim of this study was to evaluate the effect of zinc supplementation on productive performance and antioxidant status in laying ducks. Five-hundred-four laying ducks were divided into 7 treatments, each containing 6 replicates of 12 ducks. The ducks were caged individually and fed a corn-soybean meal and wheat bran basal diet (37 mg Zn/kg) or the basal diet supplemented with 15, 30, 45, 60, 75, or 90 mg Zn/kg (as zinc sulfate). During the early laying period of 10 d (daily egg production <80%), egg production, daily egg mass, and FCR increased quadratically with increasing dietary Zn levels (P < 0...
March 2, 2017: Poultry Science
https://www.readbyqxmd.com/read/28339929/dietary-resveratrol-supplementation-prevents-transport-stress-impaired-meat-quality-of-broilers-through-maintaining-muscle-energy-metabolism-and-antioxidant-status
#6
C Zhang, L Wang, X H Zhao, X Y Chen, L Yang, Z Y Geng
This experiment was to evaluate the effect of dietary resveratrol (Res) supplementation (0, 400 mg/kg) on growth performance, meat quality, and muscle anaerobic glycolysis and antioxidant capacity of transported broilers. A total of 360 21-day-old male Cobb broilers was randomly allotted to 2 dietary treatments (Res-free group and Res group) with 12 replicates of 15 birds each. On the morning of d 42, after a 9-hour fast, 24 birds (2 birds of each replicate) were selected from the Res-free group and then equally placed into 2 crates, and the other 12 birds (one bird of each replicate) were selected from the Res group and then placed into the other crate...
March 2, 2017: Poultry Science
https://www.readbyqxmd.com/read/28339814/modulating-oxidative-stress-relieves-stress-induced-behavioral-and-cognitive-impairments-in-rats
#7
Naimesh Solanki, Ankita Salvi, Gaurav Patki, Samina Salim
Background: Persistent psychological stress often leads to anxiety disorders and depression. Benzodiazepines and selective serotonin reuptake inhibitors are popular treatment options but have limited efficacy, supporting the need for alternative treatment. Based on our recent preclinical work suggesting a causal link between neurobehavioral deficits and elevated oxidative stress, we hypothesized that interventions that mitigate oxidative stress can attenuate/overcome neurobehavioral deficits...
February 24, 2017: International Journal of Neuropsychopharmacology
https://www.readbyqxmd.com/read/28339746/in-vitro-cytotoxic-and-ace-inhibitory-activities-of-promod-278p-hydrolysate-of-ovotransferrin-from-chicken-egg-white
#8
S H Moon, J H Lee, J H Kim, H-D Paik, D U Ahn
Peptides released from egg proteins via enzymatic hydrolysis show various bioactivities such as antimicrobial, antioxidant, antihypertensive, and immunomodulatory properties. The objective of this study was to investigate the cytotoxic and Angiotensin Converting Enzyme (ACE)-inhibitory activities of ovotransferrin and its promod 278P enzyme hydrolysate. Ovotransferrin from egg white was hydrolyzed using promod 278P at 45°C for 3 hours. Using the MTT assay, the cytotoxicity of ovotransferrin and promod 278P hydrolysate of ovotransferrin were evaluated in human cancer cell lines of various tissue origins...
February 22, 2017: Poultry Science
https://www.readbyqxmd.com/read/28339706/differential-proliferation-and-metabolic-activity-of-sertoli-cells-in-the-testes-of-broiler-and-layer-breeder-chickens
#9
Mélanie Faure, Edith Guibert, Sabine Crochet, Pascal Chartrin, Jean-Pierre Brillard, Anne Collin, Pascal Froment
Decades of genetic selection have generated 2 different, highly specialized types of chickens in which 1 type, known as the layer-type chicken, expresses high laying performance while the other type, known as the broiler-type chicken, is dedicated to the production of fast-growing birds. Selected lines for the latter type often express disorders in their reproductive performance including early sexual maturation and accelerated, non-reversible seasonal decline of their semen production and mating behavior. The aim of the present study was to characterize some metabolic markers of the Sertoli cell populations...
February 21, 2017: Poultry Science
https://www.readbyqxmd.com/read/28339512/effects-of-mulberry-leaves-on-production-performance-and-the-potential-modulation-of-antioxidative-status-in-laying-hens
#10
W C Lin, M T Lee, S C Chang, Y L Chang, C H Shih, B Yu, T T Lee
This study evaluated the antioxidant ability of Taisung No. 3 mulberry leaf extract (MLE) as well as the potential of mulberry leaf (ML)-based dietary supplementation for modulating the antioxidative status of laying hens. The results showed that the MLE had a total phenolic compound content of 7.4 ± 0.15 mg of gallic acid equivalent/g dry weight (DW) and a total flavonoid content of 4.4 ± 0.19 mg of quercetin equivalent/g DW. The 2, 2-diphenyl-1-picrylhydrazyl free-radical-scavenging ability was 45...
October 6, 2016: Poultry Science
https://www.readbyqxmd.com/read/28339481/proteomic-analysis-of-injured-storage-roots-in-cassava-manihot-esculenta-crantz-under-postharvest-physiological-deterioration
#11
Yuling Qin, Astride Stéphanie Mouafi Djabou, Feifei An, Kaimian Li, Zhaogui Li, Long Yang, Xiaojing Wang, Songbi Chen
Postharvest physiological deterioration (PPD) is a global challenge in the improvement of cassava value chain. However, how to reduce cassava spoilage and reveal the mechanism of injured cassava storage roots in response to PPD were poorly understood. In the present study, we investigated the activities of antioxidant enzymes of cassava injured storage roots in PPD-susceptible (SC9) and PPD-tolerant (QZ1) genotypes at the time-points from 0h to 120h, and further analyzed their proteomic changes using two-dimensional electrophoresis (2-DE) in combination with MALDI-TOF-MS/MS...
2017: PloS One
https://www.readbyqxmd.com/read/28335581/biosynthesis-of-oligomeric-anthocyanins-from-grape-skin-extracts
#12
Jin-Woo Hwang, Sithranga Boopathy Natarajan, Yon-Suk Kim, Eun-Kyung Kim, Jae Woong Lee, Sang-Ho Moon, Byong-Tae Jeon, Pyo-Jam Park
We synthesized oligomeric anthocyanins from grape skin-derived monomeric anthocyanins such as anthocyanidin and proanthocyanidin by a fermentation technique using Aspergillus niger, crude enzymes and glucosidase. The biosyntheses of the oligomeric anthocyanins carried out by the conventional method using Aspergillus niger and crude enzymes were confirmed by ESI-MS. The molecular weight of the synthesized anthocyanin oligomers was determined using MALDI-MS. The yield of anthocyanin oligomers using crude enzymes was higher than that of the synthesis using Aspergillus fermentation...
March 21, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28335518/new-chiral-ebselen-analogues-with-antioxidant-and-cytotoxic-potential
#13
Agata J Pacuła, Katarzyna B Kaczor, Jędrzej Antosiewicz, Anna Janecka, Angelika Długosz, Tomasz Janecki, Andrzej Wojtczak, Jacek Ścianowski
New chiral camphane-derived benzisoselenazol-3(2H)-ones and corresponding diselenides have been synthetized using a convenient one-pot procedure. Se-N bond was efficiently converted to an Se-Se bond, which could also be easily re-oxidized to the initial benzisoselenazolone moiety. The antioxidant activity of camphor derivatives was evaluated and compared to the reactivity of a series of N-amino acid benzisoselenazol-3(2H)-ones obtained by a modified procedure involving the improved synthesis and isolation of the diseleno bis(dibenzoic) acid...
March 20, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28335502/catechins-and-their-therapeutic-benefits-to-inflammatory-bowel-disease
#14
REVIEW
Fei-Yan Fan, Li-Xuan Sang, Min Jiang
Catechins are natural polyphenolic phytochemicals that exist in food and medicinal plants, such as tea, legume and rubiaceae. An increasing number of studies have associated the intake of catechins-rich foods with the prevention and treatment of chronic diseases in humans, such as inflammatory bowel disease (IBD). Some studies have demonstrated that catechins could significantly inhibit the excessive oxidative stress through direct or indirect antioxidant effects and promote the activation of the antioxidative substances such as glutathione peroxidases (GPO) and glutathione (GSH), reducing the oxidative damages to the colon...
March 19, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28335476/inhibition-of-neoplastic-transformation-and-chemically-induced-skin-hyperplasia-in-mice-by-traditional-chinese-medicinal-formula-si-wu-tang
#15
Mandy M Liu, Kevin M Huang, Steven Yeung, Andy Chang, Suhui Zhang, Nan Mei, Cyrus Parsa, Robert Orlando, Ying Huang
Exploring traditional medicines may lead to the development of low-cost and non-toxic cancer preventive agents. Si-Wu-Tang (SWT), comprising the combination of four herbs, Rehmanniae, Angelica, Chuanxiong, and Paeoniae, is one of the most popular traditional Chinese medicines for women's diseases. In our previous studies, the antioxidant Nrf2 pathways were strongly induced by SWT in vitro and in vivo. Since Nrf2 activation has been associated with anticarcinogenic effects, the purpose of this study is to evaluate SWT's activity of cancer prevention...
March 18, 2017: Nutrients
https://www.readbyqxmd.com/read/28335473/assessment-of-antioxidant-and-cytoprotective-potential-of-jatropha-jatropha-curcas-grown-in-southern-italy
#16
Teresa Papalia, Davide Barreca, Maria Rosaria Panuccio
Jatropha (Jatropha curcas L.) is a plant native of Central and South America, but widely distributed in the wild or semi-cultivated areas in Africa, India, and South East Asia. Although studies are available in literature on the polyphenolic content and bioactivity of Jatropha curcas L., no information is currently available on plants grown in pedoclimatic and soil conditions different from the autochthon regions. The aim of the present work was to characterize the antioxidant system developed by the plant under a new growing condition and to evaluate the polyphenol amount in a methanolic extract of leaves...
March 18, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28335462/therapeutic-potentials-of-microalgae-in-the-treatment-of-alzheimer-s-disease
#17
REVIEW
Tosin A Olasehinde, Ademola O Olaniran, Anthony I Okoh
Current research is geared towards the discovery of new compounds with strong neuroprotective potential and few or no side effects compared to synthetic drugs. This review focuses on the potentials of extracts and biologically active compounds derived from microalgal biomass for the treatment and management of Alzheimer's disease (AD). Microalgal research has gained much attention recently due to its contribution to the production of renewable fuels and the ability of alga cells to produce several secondary metabolites such as carotenoids, polyphenols, sterols, polyunsaturated fatty acids and polysaccharides...
March 18, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28335458/in-vitro-antioxidant-activity-and-in-vivo-anti-fatigue-effect-of-sea-horse-hippocampus-peptides
#18
Zebin Guo, Duanquan Lin, Juanjuan Guo, Yi Zhang, Baodong Zheng
This study investigated changes the in vitro antioxidant activity of Hippocampus polypeptides during enzymatic hydrolysis, including the effects of enzyme species, enzyme concentration, material-liquid ratio, hydrolysis time, pH, and temperature of the reaction system. Its in vivo anti-fatigue activity was also studied. Hippocampus peptide prepared by papain digestion exhibited the highest 1,1-diphenyl-2-picryl-hydrazyl free radical scavenging rate (71.89% ± 1.50%) and strong hydroxyl radical scavenging rate (75...
March 18, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28335416/supplementation-with-phycocyanobilin-citrulline-taurine-and-supranutritional-doses-of-folic-acid-and-biotin-potential-for-preventing-or-slowing-the-progression-of-diabetic-complications
#19
Mark F McCarty
Oxidative stress, the resulting uncoupling of endothelial nitric oxide synthase (eNOS), and loss of nitric oxide (NO) bioactivity, are key mediators of the vascular and microvascular complications of diabetes. Much of this oxidative stress arises from up-regulated nicotinamide adenine dinucleotide phosphate (NADPH) oxidase activity. Phycocyanobilin (PhyCB), the light-harvesting chromophore in edible cyanobacteria such as spirulina, is a biliverdin derivative that shares the ability of free bilirubin to inhibit certain isoforms of NADPH oxidase...
March 14, 2017: Healthcare (Basel, Switzerland)
https://www.readbyqxmd.com/read/28335413/chitin-oligosaccharide-cos-reduces-antibiotics-dose-and-prevents-antibiotics-caused-side-effects-in-adolescent-idiopathic-scoliosis-ais-patients-with-spinal-fusion-surgery
#20
Yang Qu, Jinyu Xu, Haohan Zhou, Rongpeng Dong, Mingyang Kang, Jianwu Zhao
Antibiotics are always considered for surgical site infection (SSI) in adolescent idiopathic scoliosis (AIS) surgery. However, the use of antibiotics often causes the antibiotic resistance of pathogens and side effects. Thus, it is necessary to explore natural products as drug candidates. Chitin Oligosaccharide (COS) has anti-inflammation and anti-bacteria functions. The effects of COS on surgical infection in AIS surgery were investigated. A total of 312 AIS patients were evenly and randomly assigned into control group (CG, each patient took one-gram alternative Azithromycin/Erythromycin/Cloxacillin/Aztreonam/Ceftazidime or combined daily), experiment group (EG, each patient took 20 mg COS and half-dose antibiotics daily), and placebo group (PG, each patient took 20 mg placebo and half-dose antibiotics daily)...
March 14, 2017: Marine Drugs
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