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https://www.readbyqxmd.com/read/28813781/bee-venom-decreases-lps-induced-inflammatory-responses-in-bovine-mammary-epithelial-cells
#1
Chang Hee Jeong, Wei Nee Cheng, Hyojin Bae, Kyung Woo Lee, Sang Mi Han, Michael C Petriello, Hong Gu Lee, Han Geuk Seo, Sung Gu Han
The world dairy industry has long been challenged by bovine mastitis, an inflammatory disease, which causes economic loss due to decreased milk production and quality. Attempts have been made to prevent or treat this disease with multiple approaches, primarily through increased abuse of antibiotics, but effective natural solutions remain elusive. Bee venom (BV) contains a variety of peptides (e.g., melittin) and that shows multiple bioactivities including prevention of inflammation. Thus, in the current study, it was hypothesized that BV can reduce inflammation in bovine mammary epithelial cells (MAC-T)...
August 17, 2017: Journal of Microbiology and Biotechnology
https://www.readbyqxmd.com/read/28813617/environmental-stress-affects-the-formation-of-staphylococcus-aureus-persisters-tolerant-to-antibiotics
#2
Lucie Kubistova, Lukas Dvoracek, Jan Tkadlec, Oto Melter, Irena Licha
The ability to form persisters has been observed in many microorganisms, including Staphylococcus aureus, mainly in the context of chronic infections and the pathogenicity of these microbes. In our research, we have demonstrated that salt or oxidative stress could play a role in the formation of S. aureus persisters outside the host's intracellular interface. We pre-exposed planktonic growing bacterial culture to an oxidative or salt stress and monitored the dynamics of persister formation after ciprofloxacin and gentamicin treatment...
August 16, 2017: Microbial Drug Resistance: MDR: Mechanisms, Epidemiology, and Disease
https://www.readbyqxmd.com/read/28813612/role-of-zinc-oxide-nanoparticles-in-alleviating-hepatic-fibrosis-and-nephrotoxicity-induced-by-thioacetamide-in-rats
#3
Samir Ae Bashandy, Abdulaziz Alaamer, Sherif Abdelmawgoud Moussa, Enayat Omara
The present research studied the influence of zinc oxide nanoparticles (ZnO-NPs; 5mg, 7.5mg, 10 mg/Kg IP) on the liver and kidney injuries motivated by thioacetamide (TAA; 100mg/Kg IP).Each treatment was carried out three times weekly for eight weeks .ZnO-NPs relieved the decrease of hepatic or renal reduced glutathione (GSH), catalase (CAT) and superoxide dismutase (SOD) induced by TAA. Moreover, ZnO-NPs lowered tissues malondialdehyde (MDA, an indicator for lipid peroxidation). TAA treatment led to a significant increase in plasma inflammatory markers (TNF-α, IL-6), liver enzymes (Gamma-glutamyltransferase (GGT), Aspartate aminotransferase (AST), Alanine aminotransferase (ALT) and kidney function parameters (Creatinine, urea, uric acid)...
August 16, 2017: Canadian Journal of Physiology and Pharmacology
https://www.readbyqxmd.com/read/28813475/evaluation-of-the-adaptogenic-potential-exerted-by-ginsenosides-rb1-and-rg1-against-oxidative-stress-mediated-neurotoxicity-in-an-in-vitro-neuronal-model
#4
Carlos Fernández-Moriano, Elena González-Burgos, Irene Iglesias, Rafael Lozano, M Pilar Gómez-Serranillos
BACKGROUND: Ginseng (Panax sp.) is a drug with multiple pharmacological actions that has been largely used in traditional medicines for the treatment of many health problems. In the therapy of neurodegenerative disorders, it has been employed due to its capacity to strengthen mental processes by enhancing cognitive performance and psychological function. Current work aimed at evaluating the adaptogenic potential of Rb1 and Rg1 against oxidative-stress mediated degeneration in a model of nervous cells...
2017: PloS One
https://www.readbyqxmd.com/read/28813012/inhibitory-effect-of-lycopene-on-amyloid-%C3%AE-induced-apoptosis-in-neuronal-cells
#5
Sinwoo Hwang, Joo Weon Lim, Hyeyoung Kim
Alzheimer's disease (AD) is a fatal neurodegenerative disease. Brain amyloid-β deposition is a crucial feature of AD, causing neuronal cell death by inducing oxidative damage. Reactive oxygen species (ROS) activate NF-κB, which induces expression of Nucling. Nucling is a pro-apoptotic factor recruiting the apoptosome complex. Lycopene is an antioxidant protecting from oxidative stress-induced cell damage. We investigated whether lycopene inhibits amyloid-β-stimulated apoptosis through reducing ROS and inhibiting mitochondrial dysfunction and NF-κB-mediated Nucling expression in neuronal SH-SY5Y cells...
August 16, 2017: Nutrients
https://www.readbyqxmd.com/read/28812474/protective-effect-of-raisin-currant-against-spatial-memory-impairment-and-oxidative-stress-in-alzheimer-disease-model
#6
Mohammad Gol, Davoud Ghorbanian, Nabiollah Soltanpour, Jamshid Faraji, Mohsen Pourghasem
OBJECTIVES: Alzheimer's disease (AD) is a neurodegenerative disorder characterized by progressive pathological changes of the brain. A number of studies demonstrated compelling evidence of the importance of oxidative processes in AD pathogenesis. Raisin contains polyphenol, phenolic acid, and tannin compounds, which have antioxidant and anti-inflammatory properties. The present study was aimed to evaluate the protective effect of raisin on neurobehavioral and histological changes in rats with Alzheimer...
August 16, 2017: Nutritional Neuroscience
https://www.readbyqxmd.com/read/28812438/acute-formaldehyde-exposure-induced-early-alzheimer-like-changes-in-mouse-brain
#7
Xudong Liu, Yuchao Zhang, Ruliu Wu, Meng Ye, Yuqing Zhao, Jun Kang, Ping Ma, Jinquan Li, Xu Yang
Alzheimer's disease (AD) is a serious, common, global disease, yet its etiology and pathogenesis are incompletely understood. Although an association between AD and exposure to air pollutants has been discussed, the effects of pollutants on the functioning of the brain remain unclear. The indoor environment is where exposure to formaldehyde (FA) can occur. Whether exposure to FA contributes to the development of AD needs to be investigated. To determine the objective, C57BL/6 mice were exposed daily to FA (0, 0...
August 16, 2017: Toxicology Mechanisms and Methods
https://www.readbyqxmd.com/read/28812436/the-mechanism-of-protective-effect-of-crocin-against-liver-mitochondrial-toxicity-caused-by-arsenic-iii
#8
Bahareh Sadat Yousefsani, Jalal Pourahmad, Hossein Hosseinzadeh
In this study, we want to understand whether crocin could prevent mitochondrial damage caused by As III. For this purpose, we determined different mitochondrial toxicity endpoints caused by As III. We evaluated mitochondrial ROS formation, lipid peroxidation, mitochondrial membrane potential collapse, mitochondrial outer membrane integrity and cytochrome c release. Our results showed that pretreatment with crocin at a concentration of 25 µg/ml significantly (P < 0.001) reduced As III induced mitochondrial ROS formation, lipid peroxidation, mitochondrial membrane potential collapse and mitochondrial swelling...
August 16, 2017: Toxicology Mechanisms and Methods
https://www.readbyqxmd.com/read/28812379/dietary-polyphenols-for-atherosclerosis-a-comprehensive-review-and-future-perspectives
#9
Roodabeh Bahramsoltani, Farnaz Ebrahimi, Mohammad Hosein Farzaei, Armaghan Baratpourmoghaddam, Pardis Ahmadi Borkani, Pourouchista Rostamiasrabadi, Amir Hosein Rasouli Amirabadi, Roja Rahimi
Atherosclerosis is one of the most prevalent reasons for premature death in adults. Despite the several conventional drugs in the market; many patients are not completely treated. Here we comprehensively review current clinical evidence regarding the efficacy of dietary polyphenols in atherosclerosis and related complications. PubMed, Cochrane library and Scopus were searched from inception until August 2016 to obtain clinical trials in which polyphenols were evaluated in cardiovascular parameters related to atherosclerosis...
August 16, 2017: Critical Reviews in Food Science and Nutrition
https://www.readbyqxmd.com/read/28812260/zinc-metabolism-and-metallothioneins
#10
REVIEW
Abdulkerim Kasim Baltaci, Kemal Yuce, Rasim Mogulkoc
Among the trace elements, zinc is one of the most used elements in biological systems. Zinc is found in the structure of more than 2700 enzymes, including hydrolases, transferases, oxyreductases, ligases, isomerases, and lyases. Not surprisingly, it is present in almost all body cells. Preserving the stability and integrity of biological membranes and ion channels, zinc is also an intracellular regulator and provides structural support to proteins during molecular interactions. It acts as a structural element in nucleic acids or other gene-regulating proteins...
August 15, 2017: Biological Trace Element Research
https://www.readbyqxmd.com/read/28812231/the-neuroprotective-effect-of-conditioned-medium-from-human-adipose-derived-mesenchymal-stem-cells-is-impaired-by-n-acetyl-cysteine-supplementation
#11
Teodoro Palomares, María Cordero, Cristina Bruzos-Cidon, María Torrecilla, Luisa Ugedo, Ana Alonso-Varona
Oxidative stress is a common feature in neurodegenerative diseases associated with neuroinflammation, and therefore, has been proposed as a key target for novel therapies for these diseases. Recently, adipose-derived stem cell (ASC)-based cell therapy has emerged as a novel strategy for neuroprotection. In this study, we evaluate the therapeutic role of ASC-conditioned medium (ASC-CM) against H2O2-induced neurotoxicity in a new in vitro model of ec23/brain-derived neurotrophic factor (BDNF)-differentiated human SH-SY5Y neuron-like cells (SH-SY5Yd)...
August 15, 2017: Molecular Neurobiology
https://www.readbyqxmd.com/read/28812165/methane-enhances-aluminum-resistance-in-alfalfa-seedlings-by-reducing-aluminum-accumulation-and-reestablishing-redox-homeostasis
#12
Weiti Cui, Hong Cao, Ping Yao, Jincheng Pan, Quan Gu, Sheng Xu, Ren Wang, Zhaozeng Ouyang, Qingya Wang, Wenbiao Shen
Methane (CH4) is emerging as a candidate of signal molecule recently. However, whether or how CH4 enhances plant adaptation to aluminum (Al)-contaminated environment is still unknown. In this report, the physiological roles and possible molecular mechanisms of CH4 in the modulation of Al toxicity in alfalfa seedlings were characterized. Our results showed that, CH4 pretreatment could alleviate Al-induced seedling growth inhibition and redox imbalance. The defensive effects of CH4 against Al toxicity including the remission of Al-induced root elongation inhibition, nutrient disorder, and relative electrolyte leakage...
August 15, 2017: Biometals: An International Journal on the Role of Metal Ions in Biology, Biochemistry, and Medicine
https://www.readbyqxmd.com/read/28811869/pro-and-antioxidant-functions-of-the-peroxisome-mitochondria-connection-and-its-impact-on-aging-and-disease
#13
REVIEW
Amparo Pascual-Ahuir, Sara Manzanares-Estreder, Markus Proft
Peroxisomes and mitochondria are the main intracellular sources for reactive oxygen species. At the same time, both organelles are critical for the maintenance of a healthy redox balance in the cell. Consequently, failure in the function of both organelles is causally linked to oxidative stress and accelerated aging. However, it has become clear that peroxisomes and mitochondria are much more intimately connected both physiologically and structurally. Both organelles share common fission components to dynamically respond to environmental cues, and the autophagic turnover of both peroxisomes and mitochondria is decisive for cellular homeostasis...
2017: Oxidative Medicine and Cellular Longevity
https://www.readbyqxmd.com/read/28811866/preliminary-data-on-the-interaction-between-some-biometals-and-oxidative-stress-status-in-mild-cognitive-impairment-and-alzheimer-s-disease-patients
#14
Ioana-Miruna Balmuș, Stefan-Adrian Strungaru, Alin Ciobica, Mircea-Nicusor Nicoara, Romeo Dobrin, Gabriel Plavan, Cristinel Ștefănescu
Increased interest regarding the biometal mechanisms of action and the pathways in which they have regulatory roles was lately observed. Particularly, it was shown that biometal homeostasis dysregulation may lead to neurodegeneration including Alzheimer's disease, Parkinson disease, or prion protein disease, since important molecular signaling mechanisms in brain functions implicate both oxidative stress and redox active biometals. Oxidative stress could be a result of a breakdown in metal-ion homeostasis which leads to abnormal metal protein chelation...
2017: Oxidative Medicine and Cellular Longevity
https://www.readbyqxmd.com/read/28811865/oxidative-biochemistry-disbalance-and-changes-on-proteomic-profile-in-salivary-glands-of-rats-induced-by-chronic-exposure-to-methylmercury
#15
Leonardo Oliveira Bittencourt, Bruna Puty, Senda Charone, Walessa Alana Bragança Aragão, Paulo Mecenas Farias-Junior, Marcia Cristina Freitas Silva, Maria Elena Crespo-Lopez, Aline de Lima Leite, Marilia Afonso Rabelo Buzalaf, Rafael Rodrigues Lima
Methylmercury (MeHg) is one of the most toxic mercury species, which can cause many systemic damages, but little is known about its effect in the salivary glands. This study aimed to analyze the mercury levels, oxidative stress, and proteomic profile in parotid, submandibular, and sublingual salivary glands of rats, after chronic MeHg intoxication. Two groups of twenty male Wistar rats (90 days of age) were used on the experiment. MeHg group was intoxicated by intragastric gavage with MeHg at a dose of 0.04 mg/kg/day for 60 days, while the control group received only oil...
2017: Oxidative Medicine and Cellular Longevity
https://www.readbyqxmd.com/read/28811864/identification-of-four-oxidative-stress-responsive-micrornas-mir-34a-5p-mir-1915-3p-mir-638-and-mir-150-3p-in-hepatocellular-carcinoma
#16
Yong Wan, Ruixia Cui, Jingxian Gu, Xing Zhang, Xiaohong Xiang, Chang Liu, Kai Qu, Ting Lin
Increasing evidence suggests that oxidative stress plays an essential role during carcinogenesis. However, the underlying mechanism between oxidative stress and carcinogenesis remains unknown. Recently, microRNAs (miRNAs) are revealed to be involved in oxidative stress response and carcinogenesis. This study aims to identify miRNAs in hepatocellular carcinoma (HCC) cells which might involve in oxidative stress response. An integrated analysis of miRNA expression signature was performed by employing robust rank aggregation (RRA) method, and four miRNAs (miR-34a-5p, miR-1915-3p, miR-638, and miR-150-3p) were identified as the oxidative stress-responsive miRNAs...
2017: Oxidative Medicine and Cellular Longevity
https://www.readbyqxmd.com/read/28811863/long-noncoding-rnas-and-rna-binding-proteins-in-oxidative-stress-cellular-senescence-and-age-related-diseases
#17
REVIEW
Chongtae Kim, Donghee Kang, Eun Kyung Lee, Jae-Seon Lee
Cellular senescence is a complex biological process that leads to irreversible cell-cycle arrest. Various extrinsic and intrinsic insults are associated with the onset of cellular senescence and frequently accompany genomic or epigenomic alterations. Cellular senescence is believed to contribute to tumor suppression, immune response, and tissue repair as well as aging and age-related diseases. Long noncoding RNAs (lncRNAs) are >200 nucleotides long, poorly conserved, and transcribed in a manner similar to that of mRNAs...
2017: Oxidative Medicine and Cellular Longevity
https://www.readbyqxmd.com/read/28811749/acute-cocoa-flavanols-intake-has-minimal-effects-on-exercise-induced-oxidative-stress-and-nitric-oxide-production-in-healthy-cyclists-a-randomized-controlled-trial
#18
Lieselot Decroix, Cajsa Tonoli, Danusa Dias Soares, Amandine Descat, Marie-José Drittij-Reijnders, Antje R Weseler, Aalt Bast, Wilhelm Stahl, Elsa Heyman, Romain Meeusen
BACKGROUND: Cocoa flavanols (CF) can stimulate vasodilation by improved nitric oxide (NO) synthesis and have antioxidant and anti-inflammatory capacities. This study aimed to examine whether acute CF intake can affect exercise-induced changes in antioxidant capacity, oxidative stress, inflammation and NO production, as well as exercise performance and recovery in well-trained cyclists. METHODS: Twelve well-trained male cyclists (mean ± SD age, VO2max: 30 ± 3 years, 63...
2017: Journal of the International Society of Sports Nutrition
https://www.readbyqxmd.com/read/28811709/bone-marrow-derived-monocyte-infusion-improves-hepatic-fibrosis-by-decreasing-osteopontin-tgf-%C3%AE-1-il-13-and-oxidative-stress
#19
Veruska Cintia Alexandrino de Souza, Thiago Almeida Pereira, Valéria Wanderley Teixeira, Helotonio Carvalho, Maria Carolina Accioly Brelaz de Castro, Carolline Guimarães D'assunção, Andréia Ferreira de Barros, Camila Lima Carvalho, Virgínia Maria Barros de Lorena, Vláudia Maria Assis Costa, Álvaro Aguiar Coelho Teixeira, Regina Celia Bressan Queiroz Figueiredo, Sheilla Andrade de Oliveira
AIM: To evaluate the therapeutic effects of bone marrow-derived CD11b(+)CD14(+) monocytes in a murine model of chronic liver damage. METHODS: Chronic liver damage was induced in C57BL/6 mice by administration of carbon tetrachloride and ethanol for 6 mo. Bone marrow-derived monocytes isolated by immunomagnetic separation were used for therapy. The cell transplantation effects were evaluated by morphometry, biochemical assessment, immunohistochemistry and enzyme-linked immunosorbent assay...
July 28, 2017: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/28811697/role-of-iron-and-copper-in-the-pathogenesis-of-parkinson-s-disease
#20
Mohit Kumar Gangania, Jyoti Batra, Suman Kushwaha, Rachna Agarwal
Parkinson's disease (PD) is an old age disorder of basal ganglia which involves oligomerization of α-synuclein protein and formation of intercellular inclusions known as "Lewy bodies" in substantia nigra and caudate nuclei in brain which is progressive in nature. It is second most prevalent neurodegenerative disorder characterized by tremor at rest, muscle rigidity, slowness of movement (bradykinesia, akinesia), and changes in posture (instability). Both excess and deficiency in levels of transition metals (especially iron, copper) can be detrimental to the central nervous system...
July 2017: Indian Journal of Clinical Biochemistry: IJCB
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