نتایج جستجو برای: immunotoxic effect
تعداد نتایج: 1641878 فیلتر نتایج به سال:
2,3,7,8-Tetrachlorodibenzo-p-dioxin (TCDD) and structurally similar halogenated aromatic hydrocarbons cause a broad range of immunologic effects in experimental animals including decreased host resistance to infectious disease and suppressed humoral and cell-mediated immune responses. In the mouse, TCDD immunotoxicity has been shown to be an aryl hydrocarbon (Ah) receptor-dependent process. How...
Trichloroethylene (TCE) is known to induce allergic contact dermatitis and subsequent occupational medicamentosa-like dermatitis (OMLD) with multi-system injuries, including liver, kidney, and skin injuries. However, the mechanisms underlying immune system dysfunction that result in organ injury have not yet been clearly elucidated. In the present study, we measured the levels of secreted cytok...
Recent research has pointed to the developing immune system as a remarkably sensitive toxicologic target for environmental chemicals and drugs. In fact, the perinatal period before and just after birth is replete with dynamic immune changes, many of which do not occur in adults. These include not only the basic maturation and distribution of immune cell types and selection against autoreactive ...
The Bhopal gas tragedy is undoubtedly one of the worst industrial disasters in the history of mankind resulting in mortality of 2500-6000 and debilitating over 200 000 people. Inhabitants in the township were exposed to different degrees and there are more than 500 000 registered victims that survived the tragedy. Clinical studies have shown chronic illnesses such as pulmonary fibrosis, bronchi...
The postemergent herbicide propanil (PRN ; also known as 3,4-dichloropropionanilide) is used on rice and wheat crops and has well-known immunotoxic effects on various compartments of the immune system, including T-helper lymphocytes, B lymphocytes, and macrophages. It is unclear, however, whether PRN also adversely affects cytotoxic T lymphocytes (CTLs) , the primary (1 degrees ) effectors of c...
Monoclonal antibodies specific for the gp120 or gp41 portions of the human immunodeficiency virus (HIV) envelope protein gp160 were conjugated to ricin A chain, and their immunotoxic activities against HIV-infected cells were evaluated in the presence or absence of soluble CD4 (sCD4). Immunotoxin activity was measured in vitro as cytotoxicity and inhibition of secretion of infectious HIV. The e...
Microglial cells have been attributed both neuroprotective and neurodegenerative roles in cerebral ischemia. This study presents an immunotoxic method for depletion of microglia from mouse hippocampal slice cultures and the effect of this on ischemia-like oxygen-glucose deprivation (OGD). For microglial depletion hippocampal slice cultures were exposed for 7 days to saporin coupled to an antibo...
Aflatoxin B2 (AFB2) is a carcinogenic and immunotoxic metabolite produced by Aspergillus flavus growing on crops and food. The immune functions of rat macrophages when exposed to sub-cytotoxic concentrations of AFB2 which may make exposed people susceptible to Candida albicans infections, have been assessed. This level of AFB2 significantly prevents immune functions of macrophages by inhibiting...
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