نتایج جستجو برای: cellular defence system
تعداد نتایج: 2600804 فیلتر نتایج به سال:
The basic pathogenesis of the septic syndrome is a physiological response going beyond control. When organisms infect the body the first line of defence is the interaction with the hosts innate defence system comprising of polymorphs and the various chemicals. In evolutionary terms this defence system has been well conserved with minor alterations up the phylogenetic tree. When looked as a broa...
Probiotics, defined as living micro-organisms that provide a health benefit to the host when ingested in adequate amounts, have been used traditionally as food components to help the body to recover from diarrhoea. They are commonly ingested as part of fermented foods, mostly in fresh fermented dairy products. They can interact with the host through different components of the gut defence syste...
Tamoxifen is the standard adjuvant endocrine therapy for estrogen-receptor positive premenopausal breast cancer patients. However, tamoxifen resistance is frequently observed under therapy. A tamoxifen resistant cell line has been generated from the estrogen receptor positive mamma carcinoma cell line MCF-7 and was analyzed for putative differences in the aldehyde defence system and accumulatio...
Maintenance of equilibrium between free radical production and antioxidant defences (enzymatic and non enzymatic) is an essential condition for normal organism functioning. When this equilibrium has a tendency for the production of free radicals we say that the organism is in oxidative stress. In this situation, excess free radicals may damage cellular lipids, proteins and DNA, affecting normal...
System security involves decisions in at least three areas: identification of well-defined security policies, selection of cost-effective defence strategies, and implementation of real-time defence tactics. Although choices made in each of these areas affect the others, existing decision models typically handle these three decision areas in isolation. There is no comprehensive tool that can int...
introduction: in major b -thalassemia impaired biosynthesis of beta hemoglobin leads to accumulation of unpaired alpha hemoglobin chain. an iron overload generates oxygen-free radicals which ultimately leads to tissue injury. the aim of this investigation was to evaluate serum antioxidants in patients with major b -thalassemia and those with minor thalassemia in comparison with respective age ...
Crystal and solution structural studies of mouse phospholipid hydroperoxide glutathione peroxidase 4
The mammalian glutathione peroxidase (GPx) family is a key component of the cellular antioxidative defence system. Within this family, GPx4 has unique features as it accepts a large class of hydroperoxy lipid substrates and has a plethora of biological functions, including sperm maturation, regulation of apoptosis and cerebral embryogenesis. In this paper, the structure of the cytoplasmic isofo...
Acetaminophen overdose is the leading cause of acute liver failure. One dose of 10-15 g causes severe liver damage in humans, whereas repeated exposure to acetaminophen in humans and animal models results in autoprotection. Insight of this process is limited to select proteins implicated in acetaminophen toxicity and cellular defence. Here we investigate hepatic adaptation to acetaminophen toxi...
Whilst an infecting organism may produce toxins which injure tissues directly, this is often inadequate to explain the clinico-pathological sequelae in severe sepsis. Instead, the dominant role in pathogenesis may lie with components of the host immune response to infection. The highly conserved responses of the innate immune system comprise sequential activation and amplification of humoral an...
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