نتایج جستجو برای: tcdd

تعداد نتایج: 1593  

Journal: :Journal of Molecular Graphics & Modelling 2021

Unintentionally released in the environment as by-products of industrial activities, dioxins, exemplified by 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD), represent a primary concern for human health. Exposure to these chemicals is known produce broad spectrum adverse effects, including cancer. The main mechanism action TCDD humans involves binding Aryl hydrocarbon Receptor (AhR). Although qualit...

ژورنال: :تحقیقات نظام سلامت 0
گلناز پراهام دانشجوی کارشناسی ارشد، کمیته تحقیقات دانشجویی، گروه مهندسی بهداشت محیط، مرکز تحقیقات محیط زیست، مرکز پژوهش های دانشجویی، دانشکده بهداشت، دانشگاه علوم پزشکی اصفهان، اصفهان، ایران. محمد مهدی امین دانشیار، مرکز تحقیقات محیط زیست، دانشگاه علوم پزشکی اصفهان، اصفهان، ایران افشین ابراهیمی استادیار، مرکز تحقیقات محیط زیست، دانشگاه علوم پزشکی اصفهان، اصفهان، ایران مسعود ریسمانچیان مربی، عضو هیأت علمی، گروه بهداشت حرفه ای، دانشکده بهداشت، دانشگاه علوم پزشکی اصفهان، اصفهان، ایران

مقدمه و هدف: 2، 3، 7، 8 -تترا کلرو دی بنزو- پی- دیوکسین (tcdd یا tetra chlorine dibenzo-p-dioxin) به عنوان سمی ترین ترکیب شناخته شده است که به دلیل سمیت زیاد، پایداری و مقاومت بالایی که در محیط دارد، از اهمیت بالایی برخوردار می باشد. از این رو هدف از انجام این مطالعه بررسی تجزیه بیولوژیکی دیوکسین tcdd در رآکتور asbr (anaerobic sequencing batch reactor) است. روش بررسی: این مطالعه با استفاده از ی...

B MINAEI, M ABDOLLAHI, M GHAZI-KHANSARI, M KARAMI, M REZAYAT, O SABZEVARI,

2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD) is a by-product o f t he trichlorophenol (herbicide) production and is also produced through a variety of combustion processes. It appears that TCDD is a ubiquitous chemical, particularly in industrialised countries, and the liver is the target organ of its toxicity. The prominent hepatotoxic effect of TCDD is progressive centrilobular necrosis. Th...

Journal: :medical journal of islamic republic of iran 0
m karami from the department of toxicology, school of pharmacy, tehran university of medical sciences m ghazi-khansari the departments of pharmacology school of medicine, tehran university of medical sciences, tehran, i.r. iran m rezayat the departments of pharmacology school of medicine, tehran university of medical sciences, tehran, i.r. iran b minaei the departments of histology, school of medicine, tehran university of medical sciences, tehran, i.r. iran m abdollahi from the department of toxicology, school of pharmacy, tehran university of medical sciences o sabzevari from the department of toxicology, school of pharmacy, tehran university of medical sciences

2,3,7,8-tetrachlorodibenzo-p-dioxin (tcdd) is a by-product o f t he trichlorophenol (herbicide) production and is also produced through a variety of combustion processes. it appears that tcdd is a ubiquitous chemical, particularly in industrialised countries, and the liver is the target organ of its toxicity. the prominent hepatotoxic effect of tcdd is progressive centrilobular necrosis. the is...

Journal: : 2022

Bu makalede ülkemizde açık hatlar üzerinde ve özellikle hemzemin geçitlerde meydana gelen kazalar incelenerek değerlendirilmiştir. Ülkemizde demiryolu altyapı işletmecisi olan Türkiye Cumhuriyeti Devlet Demiryolları (TCDD) Genel Müdürlüğü son yıllarda iyileştirme çalışmalarını hızlandırmıştır. Bunun içinde gerek koruma sistemleri yönünden, kaplama cinsi yönünden hızlı bir dönüşüm başlatılmıştır...

Journal: :Journal of Experimental Biology and Agricultural Sciences 2022

Persistent organic pollutant 2,3,7,8-Tetrachlorodiobenzo-p-dioxin (TCDD), known as harmful congeners of dioxin, has many adverse effects on human or animal health. This TCDD enters the body through inhalation, ingestion, and skin contact. Purple Roselle is a well-known herb-medicinal plant having antioxidant properties. study aimed to evaluate capacity purple roselle water extract along yogurt ...

Journal: :Toxicological sciences : an official journal of the Society of Toxicology 2011
Tom Simones David M Shepherd

2,3,7,8-Tetrachlorodibenzo-p-dioxin (TCDD) is the prototypical aryl hydrocarbon receptor (AhR) ligand and a potent immunotoxicant. However, the mechanisms underlying TCDD-induced immunomodulation remain to be defined. Dendritic cells are professional antigen-presenting cells that constitutively express the AhR and are sensitive to TCDD-induced AhR activation. We hypothesized that AhR activation...

Journal: : 2023

Objective: The aim of the study was to investigate preventive effects Taurine against 2,3,7,8-tetracholorodibenzo-p-dioxin (TCDD)-induced organ damage in rats. environmental toxin TCDD has a high toxicity animal and human tissues. is an amino acid found cells that antioxidant properties anti-inflammatory. As result, potential effect taurine on oxidative stress caused by investigated rat liver k...

Journal: :Molecular pharmacology 2008
Kong M Xiong Richard E Peterson Warren Heideman

Exposure to environmental contaminants can disrupt normal development of the early vertebrate skeleton. 2,3,7,8-Tetrachlorodibenzo-p-dioxin (TCDD) impairs craniofacial skeletal development across many vertebrate species, and its effects are especially prominent in early life stages of fish. TCDD activates the aryl hydrocarbon receptor, a transcription factor that mediates most if not all TCDD r...

Journal: :Immunopharmacology and immunotoxicology 2009
Xiao-Hui Wang Xian-Qing Zhou Jian-Ping Xu Ying Wang Jing Lu

The study was conducted to investigate the effects of vitamin E on NK cell activity and lymphocyte proliferation in tr eated female mice by 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD). In chronic TCDD trial, 45 mice were divided into 5 groups, and the levels of TCDD and vitamin E were 0 and 0, 100 and 0, 100 and 20, 100 and 100, and 100 ng/kg/d and 500 mg/kg/d, respectively. In acute TCDD trial,...

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