نتایج جستجو برای: reactive oxygen specious ros
تعداد نتایج: 321725 فیلتر نتایج به سال:
Reactive oxygen species (ROS) are a paradox for plants. ROS can be deleterious to cellular functions yet also are important signaling molecules. They are an unavoidable consequence of life in an oxygen-rich environment, and plants have devised numerous ways to deal with them, including changes in gene expression upon exposure. An article in the June 2006 Focus Issue on ROS, ‘‘Transcriptomic foo...
Reactive oxygen species (ROS) are a paradox for plants. ROS can be deleterious to cellular functions yet also are important signaling molecules. They are an unavoidable consequence of life in an oxygen-rich environment, and plants have devised numerous ways to deal with them, including changes in gene expression upon exposure. An article in the June 2006 Focus Issue on ROS, ‘‘Transcriptomic foo...
Oxidative energy production is inevitably associated with the generation of reactive oxygen species (ROS), excessive concentrations of which can lead to cellular pathol‐ ogy. A free radical may be defined as any molecule that has one or more unpaired electrons. The superoxide anion, the hydroxyl radical, and the hypochlorite radical are some of the highest reactive radicals of oxygen. Owing to ...
Sepsis and septic shock remain as leading cause of death in adult intensive care units. It is widely accepted that sepsis and septic shock are caused predominantly by gram-negative bacteria and their endotoxins. Endotoxin or Lipopolysaccharide (LPS) have important roles as host responses and trigger the inflammatory processes, caused by gram-negative bacterial infection. Production of oxygen ra...
Intracellular reactive oxygen species (ROS) play an important role in cancer stem cell (CSC) function. Hesperetin (Hst) is a flavonoid that has been shown to affect cellular ROS level. The goal of this study was to investigate the effect of Hst on the level of ROS in gastric CSCs (GCSCs). MTT assay was used to evaluate cell survival. Cellular ROS level was measured using 2′,7′-dichlorofluoresci...
The generation of reactive oxygen radicals in mammalian cells profoundly affects numerous critical cellular functions, and the absence of efficient cellular detoxification mechanisms which remove these radicals can result in several human diseases. Growing evidence suggests that reactive oxygen species (ROS) within cells act as second messengers in intracellular signaling cascades which induce ...
سندروم تخمدان پلی کیستیک (polycystic ovary syndrome (pcos)) شایع ترین اندوکرینوپاتی در زنان است که 10-5% زنان در سنین باروری را مبتلا می کند و در حدود 20% از علل ناباروری زوجین را به خود اختصاص می دهد. براساس مطالعاتی که به تازگی صورت گرفته است ارتباط معناداری بین بروز استرس اکسیداتیو و pcos وجود دارد. در مواردی از آسیب های سیستم تولید مثلی مانند اندومتریوزیس و pcos دخالت سایتوکین های التهابی i...
Reactive oxygen species (ROS) are highly reactive reduced oxygen molecules. Recent studies have shown that production of ROS occurs in response to many physiological stimuli in plant cells, including pathogen attack, hormone signaling, polar growth, and gravitropism. Evidence is emerging that ROS can function as cellular second messengers that are likely to modulate many different proteins lead...
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