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30 results for “Reactive Oxygen (ROS)”
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Research ArticleOpen accessIn the abstractCross Talk between Iron Regulatory Proteins and Proinflammatory Molecules in Ovarian Cancer Patients Based on Menopausal StatusHaritha Padannapurath Manoj, Sudha Kuthethur, Reshma Kumarchandra et al.Micronutrient iron is postulated to contribute to the initiation of cancer mainly by the formation of Reactive Oxygen Species (ROS), the key signaling molecules of inflammatory reactions. Iron may also cause elevation of MMP9, a gelatinase responsible for remodeling extracellular matrix in cancer cells through the ROS pathway. Estrogen the hormone which decreases markedly in post menopause is also known … …OnLine Journal of Biological Sciences, Vol. 24, Issue 4 · 31 May 2024 · 4,491 accessesView PDFCite
Research ArticleOpen accessIn the abstractDifferential Gene Expression of Peroxide Resistant Protein (AhpC) in Planktonic and Biofilm State of Uropathogenic Escherichia coli CellsOmar Sadik Shalal, Ani-Simona SevastreThe gastrointestinal tract seems to be the primary reservoir of Uropathogenic Escherichia coli (UPEC) in humans. UPEC strains harbor the Urinary Tract (UT) and cause Urinary Tract Infections (UTI) which might represent a serious threat to human life. To counteract with the damage caused by the Reactive Oxygen Species (ROS), bacterial strains produce various enzymes and proteins like Alkyl hydroperoxide … …American Journal of Biochemistry and Biotechnology, Vol. 19, Issue 3 · 13 Oct 2023 · 5,324 accessesView PDFCite
Research ArticleOpen accessIn the abstractEffect of Mercuric Ion on the Oxidant Response and Calcium Ion in the Protoplasts of Arabidopsis ThalianaJun Xing, Rui Wu, Hui Yu et al.As a non-essential element for plant growth and development, the heavy metal mercury (Hg) has significant toxicity to plants. The aim of this study was to investigate the effect of mercuric ion (Hg2+) on the oxidant response and calcium ion (Ca2+) in the protoplasts of Arabidopsis thaliana. The protoplast cells were exposed to 5.0, 10.0, and 20.0 mmol/L Hg2+ for … …American Journal of Biochemistry and Biotechnology, Vol. 19, Issue 3 · 29 Aug 2023 · 4,961 accessesView PDFCite
Research ArticleOpen accessIn the abstractInfluence of Intracellular Reactive Oxygen Species in Several Spermatozoa Activity in Indonesian Ongole Bull Cryopreserved SpermKurniawan Dwi Prihantoko, Asmarani Kusumawati, Mulyoto Pangestu et al.Certain factors may affect sperm motility and integrity in a freezing process. Reactive Oxygen Species (ROS) is essential in damaging the sperm, as the previous study revealed that ROS is a major cause damaging the membrane of spermatozoa. This study aimed to understand ROS production and its interaction within the motility, mitochondrial activity and DNA damage to the cryopreservation process … …American Journal of Animal and Veterinary Sciences, Vol. 17, Issue 1 · 26 Jan 2022 · 6,842 accessesView PDFCite
Research ArticleOpen accessIn the abstractThe Bioaccumulation and Detoxification Mechanism of Neodymium on the Shoot of Rice SeedlingsKailun Shi, Cheng Kun Liu, Keliang Lyu et al.Neodymium (Nd) potentially pollutes environment for its wide usage in agriculture and industry. In this study, the chemical forms of Nd and effect of Nd on rice shoots were studied after rice seedlings were exposed with 0, 1, 10, 100 and1000 μM Nd. The higher concentration of Nd inhibited shoot growth, but the lower concentration of Nd induced shoot growth. … …American Journal of Biochemistry and Biotechnology, Vol. 17, Issue 2 · 11 Apr 2021 · 6,291 accessesView PDFCite
Research ArticleOpen accessIn the abstractComparative Effects and Phytotoxicity of Photo Fenton Solutions and Acid Rains on Cucumber (Cucumis Sativus) Plants: Treats and ConsoleFawzy Eissa, Sayuri Bandai, Nour El-Hoda Zidan et al.The Eco-physiological assessments of variable parameters known to be essential for proper plant growth and health were determined in cucumber plants exposed to short term treatments in 42 days using two broad classification types; Photo Fenton solution generating OH radicals and simulated acids. Solutions containing different classification of scavengers of OH radicals and mannitol were employed as Controls. Results indicated … …American Journal of Environmental Sciences, Vol. 16, Issue 2 · 21 May 2020 · 6,974 accessesView PDFCite
Research ArticleOpen accessIn the abstractInhibition Effect of Walnut Leaf Polysaccharide on HepG2 Cells in vitroShuqing Yang, Haifang Xiao, Shuyan Yu et al.In this study, the effect of Walnut Leaf Polysaccharides (WLP) on human liver tumor HepG2 cells was investigated. The results showed that WLP had dose-dependent and time-dependent inhibitory effects on HepG2 cell viability. Typical apoptosis characteristics were observed in WLP-treated HepG2 cells through 5,5',6,6'-tetrachloro-1,1',3,3'-tetraethyl-benzimidazolyl-carbocyanine iodide (DAPI) staining and Acridine Orange (AO)/Ethidium Bromide (EB) dual staining. Meanwhile, significant decrease in Mitochondrial … …American Journal of Biochemistry and Biotechnology, Vol. 15, Issue 4 · 29 Oct 2019 · 7,313 accessesView PDFCite
Research ArticleOpen accessIn the abstractEffect of Heat Stress on the Expression of HSP70, UCP3 and CYP450 Genes in Liver; Longissimus Dorsi and Semitendinosus Muscle of Growing PigsV. Montesinos-Cruz, M. Cota, L. Buenabad et al.High Ambient Temperature (AT) provokes Heat Stress (HS) in animals, which is characterized by increased body temperature, Reactive Oxygen Species (ROS) production and cell damage. Uncoupling Proteins (UCP) may contribute to dissipate body heat, cytochrome P450 (CYP3A4) reduces ROS and Heat Shock Proteins (HSP) prevent protein denaturalization. This study analyzed the expression of HSP70, UCP3 and CYP3A in liver, Longissimus … …American Journal of Animal and Veterinary Sciences, Vol. 14, Issue 4 · 24 Oct 2019 · 7,867 accessesView PDFCite
Research ArticleOpen accessIn the abstractColor Doppler Evaluation of Isovolumetric Relaxation Time and of Signals Arising from Axons of the Median Nerve as a Means to Evaluate Mitochondrial Functionality in the Context of Immunotherapy of Cancer and Chronic Conditions Associated with Mitochondrial DysfunctionStefania Pacini, Marco RuggieroReactive Oxygen Species (ROS) arising from the disruption of mitochondrial respiration act as endogenous mutagens and tumor promoters. When production of ROS exceeds the capacity of DNA repair mechanisms, random mutations and aneuploidy ensue, thousands of genes become unbalanced and genetic/epigenetic chain reactions lead to progressive aneuploidy with only two outcomes: karyotypes so altered that are not viable or karyotypes … …American Journal of Immunology, Vol. 15, Issue 1 · 12 Oct 2019 · 9,690 accessesView PDFCite
Research ArticleOpen accessIn the abstractTaxifolin Potently Diminishes Levels of Reactive Oxygen Species in Living Cells Possibly by Scavenging Peroxyl RadicalsSatoru Sakuma, Yui Kishiwaki, Mayu Matsumura et al.Taxifolin, a naturally occurring dihydroflavonol, has been reported to possess antioxidant activity, whereas there is little information regarding its antioxidant potency as a flavonoid. In the present study, the antioxidant efficacy of taxifolin in living cells was compared to that of catechin, a potent radical scavenger, by using flow cytometry with the redox-sensitive fluorescent dye, 2′,7′-dichlorodihydrofluorescein diacetate. Further, diminishing efficacy … …American Journal of Pharmacology and Toxicology, Vol. 13, Issue 1 · 18 Oct 2018 · 8,056 accessesView PDFCite