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https://www.readbyqxmd.com/read/29150879/modification-of-the-lipid-profile-and-antioxidant-status-of-the-blood-plasma-of-turkey-hens-fed-mixtures-with-raw-or-extruded-linseed
#1
A Czech, K Ognik, M Laszewska, E Cholewińska, A Stępniowska
The aim of the study was to determine the most beneficial proportion of raw linseed in complete feed mixtures for turkey hens on the basis of lipid and redox indicators in the blood. In experiment 1, the turkey hens received the complete mixture with 2%, 4% or 6% linseed. On the basis of the results obtained in experiment 1, we selected the most effective proportion of linseed, which was given to the birds in the group receiving a 4% linseed additive. In experiment 2, the birds were fed mixtures with a 4% addition of raw or extruded linseed...
November 18, 2017: Journal of Animal Physiology and Animal Nutrition
https://www.readbyqxmd.com/read/29150703/transcriptome-analysis-reveals-the-mechanism-of-fungicidal-of-thymol-against-fusarium-oxysporum-f-sp-niveum
#2
Meng Zhang, Jing Ge, Xiangyang Yu
Fusarium oxysporum: f. sp. niveum (Fusarium oxysporum) causes watermelon wilt, drastically reducing its yield. Thymol (5-methyl-2-(1-methylethyl) phenol, PubChem CID: 6989) has been extensively reported to have antimicrobial activity against pathogenic microorganisms. In this study, the growth of F. oxysporum was significantly inhibited by thymol in vitro. The dry weight of F. oxysporum was decreased significantly. Thymol-induced cell membrane damage was observed at 24 hpi (hours post-incubation). Therefore, the changes in the gene expression level of F...
November 17, 2017: Current Microbiology
https://www.readbyqxmd.com/read/29150660/gene-expression-profile-changes-in-the-jejunum-of-weaned-piglets-after-oral-administration-of-lactobacillus-or-an-antibiotic
#3
Dongyan Zhang, Tingting Shang, Yan Huang, Sixin Wang, Hui Liu, Jing Wang, Yamin Wang, Haifeng Ji, Rijun Zhang
The small intestine plays an essential role in the health and well-being of animals. Previous studies have shown that Lactobacillus has a protective effect on intestinal morphology, intestinal epithelium integrity and appropriate maturation of gut-associated tissues. Here, gene expression in jejunum tissue of weaned piglets was investigated by RNA-seq analysis after administration of sterile saline, Lactobacillus reuteri, or an antibiotic (chlortetracycline). In total, 401 and 293 genes were significantly regulated by chlortetracycline and L...
November 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29150633/ketamine-s-antidepressant-effect-is-mediated-by-energy-metabolism-and-antioxidant-defense-system
#4
Katja Weckmann, Michael J Deery, Julie A Howard, Renata Feret, John M Asara, Frederik Dethloff, Michaela D Filiou, Jamie Iannace, Christiana Labermaier, Giuseppina Maccarrone, Christian Webhofer, Larysa Teplytska, Kathryn Lilley, Marianne B Müller, Christoph W Turck
Fewer than 50% of all patients with major depressive disorder (MDD) treated with currently available antidepressants (ADs) show full remission. Moreover, about one third of the patients suffering from MDD does not respond to conventional ADs and develop treatment-resistant depression (TRD). Ketamine, a non-competitive, voltage-dependent N-Methyl-D-aspartate receptor (NMDAR) antagonist, has been shown to have a rapid antidepressant effect, especially in patients suffering from TRD. Hippocampi of ketamine-treated mice were analysed by metabolome and proteome profiling to delineate ketamine treatment-affected molecular pathways and biosignatures...
November 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29150527/transcriptional-regulators-of-redox-balance-and-other-homeostatic-processes-with-the-potential-to-alter-neurodegenerative-disease-trajectory
#5
REVIEW
Scott W Burnside, Giles E Hardingham
Diverse neurodegenerative diseases share some common aspects to their pathology, with many showing evidence of disruption to the brain's numerous homeostatic processes. As such, imbalanced inflammatory status, glutamate dyshomeostasis, hypometabolism and oxidative stress are implicated in many disorders. That these pathological processes can influence each other both up- and downstream makes for a complicated picture, but means that successfully targeting one area may have an effect on others. This targeting requires an understanding of the mechanisms by which homeostasis is maintained during health, in order to uncover strategies to boost homeostasis in disease...
November 17, 2017: Biochemical Society Transactions
https://www.readbyqxmd.com/read/29150514/sinorhizobium-meliloti-glutathione-reductase-is-required-for-both-redox-homeostasis-and-symbiosis
#6
Guirong Tang, Ningning Li, Yumin Liu, Liangliang Yu, Junhui Yan, Li Luo
Glutathione (L-γ-glutamyl-L-cysteinylglycine; GSH), one of the key antioxidants in Sinorhizobium meliloti, is required for the development of alfalfa (Medicago sativa) nitrogen-fixing nodules. Glutathione exists either in a reduced form (GSH) or an oxidized form (GSSG), and its content is regulated by two pathways in S. meliloti The first pathway is the de novo synthesis of glutathione from its constituent amino acids, namely, Glu, Cys, and Gly, catalyzed by γ-glutamyl cysteine synthetase (GshA) and glutathione synthetase (GshB)...
November 17, 2017: Applied and Environmental Microbiology
https://www.readbyqxmd.com/read/29150333/design-synthesis-and-evaluation-of-novel-dihydrostilbene-derivatives-as-potential-anti-melanogenic-skin-protecting-agents
#7
Yu Zhu, Wen-Hui Pan, Chuen Fai Ku, Hong-Jie Zhang, Siu Wai Tsang
The stems of Dendrobium orchids (Orchidaceae), also known as Shi Hu, have been used for medicinal purposes for centuries in oriental countries. In fact, the health benefits of Shi Hu have been evidenced by its modern pharmacological actions on conquering oxidative stress in pathological conditions. From the extracts of two commonly used Dendrobium species, we obtained discernible amounts of stilbenoids, explicitly trans-resveratrol (1) and dihydro-resveratrol (2), which are prototypical antioxidants. When applied to cultured melanocytes, these stilbenoids, dihydro-resveratrol (2) in particular, significantly reduced melanin formation via inhibiting tyrosinase activity and expression of tyrosinase-related proteins...
October 10, 2017: European Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/29150332/organic-arsenicals-target-thioredoxin-reductase-followed-by-oxidative-stress-and-mitochondrial-dysfunction-resulting-in-apoptosis
#8
Xiao-Yang Fan, Yu-Jiao Liu, Kai Chen, Feng-Lei Jiang, Yan-Jun Hu, Dan Liu, Yi Liu, Yu-Shu Ge
Considering the vital role of cellular redox state, more and more researches focus on the design of drugs targeting thioredoxin reductase (TrxR), an important enzyme in maintaining the balance of cellular redox. Here two organic arsenicals, 2-(((4-(1,3,2-dithiarsinan-2-yl) phenyl) imino) methyl) phenol (PIM-PAO-PDT) and N-(4-(1,3,2-dithiarsinan-2-yl) phenyl)-2-hydroxybenzamide (PAM-PAO-PDT), bearing the S-As-S chemical scaffold and different linking groups have been synthesized, and both of them show the better inhibitory activity and selectivity towards HL-60 cells...
May 6, 2017: European Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/29150325/ilex-paraguariensis-potential-antioxidant-on-aluminium-toxicity-in-an-experimental-model-of-alzheimer-s-disease
#9
Pâmela M Bortoli, Carla Alves, Eduarda Costa, Ana Paula Vanin, Jéssica R Sofiatti, Diego P Siqueira, Rogério M Dallago, Helen Treichel, Gean Delise L P Vargas, Rosilene R Kaizer
Ilex paraguariensis, yerba mate is a native plant from the southern region of Brazil. Studies showed that yerba mate has an antioxidant potential, which could help to reduce the risk of developing neurodegenerative diseases, as Alzheimer's Disease (AD). It's known that I. paraguariensis grows in acid soils with aluminium (Al), which is bioavailable in these soils. Al has a neurotoxic potential related with the progression of neurological disorders. This study aim was to evaluate the potential of I. paraguariensis in the etiology of AD using strains of Caenorhabditis elegans and the concentration of Al and antioxidants in the yerba mate extract...
November 7, 2017: Journal of Inorganic Biochemistry
https://www.readbyqxmd.com/read/29150258/a-spent-coffee-grounds-based-biorefinery-for-the-production-of-biofuels-biopolymers-antioxidants-and-biocomposites
#10
REVIEW
Sanjib Kumar Karmee
Spent coffee grounds are composed of lipid, carbohydrates, carbonaceous, and nitrogen containing compounds among others. Using n-hexane and n-hexane/isopropanol mixture highest oil yield was achived during soxhlet extraction of oil from spent coffee grounds. Alternatively, supercritical carbon dioxide can be employed as a green solvent for the extraction of oil. Using advanced chemical and biotechnological methods, spent coffee grounds are converted to various biofuels such as, biodiesel, renewable diesel, bioethanol, bioethers, bio-oil, biochar, and biogas...
November 14, 2017: Waste Management
https://www.readbyqxmd.com/read/29150046/oxidative-stress-and-dna-damage-in-the-cord-blood-of-preterm-infants
#11
Mahmood Norishadkam, Soudeh Andishmand, Javad Zavar Reza, Mohammad Javad Zare Sakhvidi, Vida Rezae Hachesoo
Preterm birth infants are more susceptible to oxidative stress and aftermaths unwanted outcomes such as DNA damage due to hyperoxic stress. In this study, we compared the DNA strand breaks as one of the results of DNA oxidation in white blood cells, malondialdehyde (oxidative stress marker), catalase and superoxide dismutase activity, and total antioxidant capacity (markers of antioxidant defense) in a cord blood plasma of a group of preterm (n=25) and full term births (n=25). The primary DNA damage and plasma oxidative stress markers were significantly higher in a preterm group (p<0...
December 2017: Mutation Research
https://www.readbyqxmd.com/read/29149803/chemical-composition-antioxidant-antibacterial-and-cytotoxic-activities-of-essential-oil-of-leontopodium-leontopodioides-willd-beauverd
#12
Yang Gao, Huijuanzi Rao, Ling-Jing Mao, Qing-Lin Ma
The essential oil (EO) from the aerial parts of Leontopodium leontopodioides (Willd.) Beauverd was obtained by hydrodistillation and analysed by GC-FID and GC-MS. Sixty-five compounds were identified which represent 96.2% of the total composition of the EO. The major components of the EO were palmitic acid (11.6%), n-pentadecanal (5.7%), linalool (3.8%), β-ionone (3.3%), hexahydrofarnesyl acetone (3.2%), bisabolone (3.2%) and β-caryophyllene (3.2%). The EO exhibited an excellent antibacterial activity against Staphylococcus aureus and Bacillus subtilis according to the MIC values tested by micro-dilution method...
November 17, 2017: Natural Product Research
https://www.readbyqxmd.com/read/29149642/oxidative-stress-cell-cycle-arrest-dna-damage-and-apoptosis-in-adult-zebrafish-danio-rerio-induced-by-tris-1-3-dichloro-2-propyl-phosphate
#13
Hanyan Chen, Pingping Wang, Zhongkun Du, Guowei Wang, Shixiang Gao
Tris(1,3-dichloro-2-propyl)phosphate (TDCPP) is an additive flame retardant of high production volume, and frequently detected in biota and environment. However, knowledge on its potential risk and toxicological mechanism still remains limited. In this study, DNA damage, transcriptomic responses and biochemical changes in the liver of zebrafish (Danio rerio) induced by TDCPP were investigated. Zebrafish was exposed to 45.81μg/L (1/100 (96h-LC50)) and 229.05μg/L (1/20 (96h-LC50)) TDCPP for 7 d. The reactive oxygen species (ROS) and GSH contents, in addition to antioxidant enzyme activities in the liver changed significantly, and the mRNA levels of genes related to oxidative stress were alerted in a dose-dependent and/or sex-dependent manner after exposure to TDCPP...
November 10, 2017: Aquatic Toxicology
https://www.readbyqxmd.com/read/29149547/engineering-escherichia-coli-co-cultures-for-production-of-curcuminoids-from-glucose
#14
Zhen Fang, J Andrew Jones, Jingwen Zhou, Mattheos A G Koffas
Curcuminoids have attracted increasing attention because of the antioxidant, anticancer, and antitumor activities while their production is limited because of its main source, turmeric plant, demonstrates extensive seasonal variation. In this study, we constructed Escherichia coli co-culture system for the rapid production of curcuminoids from glucose. Firstly, the overexpression of curcuminoid synthase and four different strategies related to increasing the intracellular malonyl-CoA pool were conducted in engineered E...
November 17, 2017: Biotechnology Journal
https://www.readbyqxmd.com/read/29149482/melatonin-alleviates-low-ps-i-limited-carbon-assimilation-under-elevated-co2-and-enhances-the-cold-tolerance-of-offspring-in-chlorophyll-b-deficient-mutant-wheat
#15
Xiangnan Li, Marian Brestic, Dun-Xian Tan, Marek Zivcak, Xiancan Zhu, Shengqun Liu, Fengbin Song, Russel J Reiter, Fulai Liu
Melatonin is involved in the regulation of carbohydrate metabolism and induction of cold tolerance in plants. The objective of this study was to investigate the roles of melatonin in modulation of carbon assimilation of wild type wheat and the Chl b-deficient mutant ANK32B in response to elevated CO2 concentration ([CO2 ]) and the transgenerational effects of application of exogenous melatonin (hereafter identified as melatonin priming) on the cold tolerance in offspring. The results showed that the melatonin priming enhanced the carbon assimilation in ANK32B under elevated [CO2 ], via boosting the activities of ATPase and sucrose synthesis and maintaining a relatively higher level of total chlorophyll concentration in leaves...
November 17, 2017: Journal of Pineal Research
https://www.readbyqxmd.com/read/29149481/neuroprotective-effects-of-melatonin-on-amphetamine-induced-dopaminergic-fiber-degeneration-in-the-hippocampus-of-postnatal-rats
#16
Tanawan Leeboonngam, Ratchadaporn Pramong, Kwankanit Sae-Ung, Piyarat Govitrapong, Pansiri Phansuwan-Pujito
Chronic amphetamine (AMPH) abuse leads to damage of the hippocampus, the brain area associated with learning and memory process. Previous results have shown that AMPH-induced dopamine neurotransmitter release, reactive oxygen species formation and degenerative protein aggregation lead to neuronal death. Melatonin, a powerful antioxidant, plays a role as a neuroprotective agent. The objective of this study was to investigate whether the protective effect of melatonin on AMPH-induced hippocampal damage in the postnatal rat acts through the dopaminergic pathway...
November 17, 2017: Journal of Pineal Research
https://www.readbyqxmd.com/read/29149089/mnsod-and-cyclin-b1-coordinate-a-mito-checkpoint-during-cell-cycle-response-to-oxidative-stress
#17
Amanda L Kalen, Iman M Ahmad, Maher Y Abdalla, Yunxia Q O'Malley, Prabhat C Goswami, Ehab H Sarsour
Communication between the nucleus and mitochondrion could coordinate many cellular processes. While the mechanisms regulating this communication are not completely understood, we hypothesize that cell cycle checkpoint proteins coordinate the cross-talk between nuclear and mitochondrial functions following oxidative stress. Human normal skin fibroblasts, representative of the G₂-phase, were irradiated with 6 Gy of ionizing radiation and assayed for cyclin B1 translocation, mitochondrial function, reactive oxygen species (ROS) levels, and cytotoxicity...
November 17, 2017: Antioxidants (Basel, Switzerland)
https://www.readbyqxmd.com/read/29149062/polyphenolics-from-albizia-harveyi-exhibit-antioxidant-activities-and-counteract-oxidative-damage-and-ultra-structural-changes-of-cryopreserved-bull-semen
#18
Mansour Sobeh, Soha A Hassan, Mohamed A El Raey, Wael A Khalil, Mahmoud A E Hassan, Michael Wink
Albizia harveyi is a tropical deciduous tree, found across South and Eastern Africa and widely used in traditional medicine. The leaf extract ameliorated the damaging effects of the frozen-thawing process in cryopreserved bull semen. In a dose-dependent pattern, sperm motility, viability, and membrane integrity were improved compared to the untreated control. Furthermore, the extract increased the percentage of viable sperm cells and reduced the percentages of early apoptotic and apoptotic sperm cells as well as the damage in sperm ultra-structure...
November 17, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/29148979/role-of-caftaric-acid-in-lead-associated-nephrotoxicity-in-rats-via-antidiuretic-antioxidant-and-anti-apoptotic-activities
#19
Khaled M M Koriem, Mahmoud S Arbid
Background Lead is a toxic metal that is widely distributed in the environment where caftaric acid (CA) is the ester form of caffeic acid where CA is the major dietary polyphenol present in various foods and beverages. The aim of this study was to evaluate the effect of CA in lead acetate (LA)-associated nephrotoxicity through antidiuretic, antioxidant and anti-apoptotic activities. Methods Forty-eight male albino rats divided into six equal groups; group 1 control injected intraperitoneally (ip) with saline (1 mL/kg of bw) over two weeks period, group 2 injected ip with CA (80 mg/kg of bw) over two weeks period, groups 3, 4, 5 and 6 injected ip with 100 μmol/kg of bw LA over two weeks period where groups 4, 5 & 6 co-injected ip with 1-deamino-8-D-arginine vasopressin (dDAVP) drug (1 mg/kg of bw), CA (40 mg/kg of bw), and CA (80 mg/kg of bw), respectively...
November 17, 2017: Journal of Complementary & Integrative Medicine
https://www.readbyqxmd.com/read/29148978/antidiabetic-and-in-vitro-antioxidant-effects-of-hydromethanol-extract-of-paullinia-pinnata-root-bark-in-alloxan-induced-diabetic-rat
#20
Onoja Samuel Okwudili, Nwachukwu Glory Chimaobi, Ezeja Maxwell Ikechukwu, Omeh Yusuf Ndukaku
Background The study evaluated phytochemical composition, antidiabetic, oral glucose tolerance test and in vitro antioxidant activities of hydromethanol extract of Paullinia pinnata root bark. Methods Cold maceration method was used in extract preparation and scavenging of 2,2-diphenyl-1-picrylhydrazyl radicals was used to evaluate antioxidant properties of the extract. Diabetes was induced with alloxan at the dose of 160 mg/kg. The antidiabetic activity of the extract was tested at doses of 50, 100 and 200 mg/kg, and glibenclamide was used as reference drug...
November 17, 2017: Journal of Complementary & Integrative Medicine
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