نتایج جستجو برای: lethal effects
تعداد نتایج: 1579563 فیلتر نتایج به سال:
In view of the importance of medicinal herbs with a wide range of biological activities in cytotoxic discussion, in this study the cytotoxic effects of crude extracts of plants from the family Lamiaceae have been investigated against larvae of Artemia Salina, by in vitro screening method. This plants as, Zataria multiflora, Thymus daenensis and endemic species as Satureja khuzistanica, Satureja...
In the recent years, water pollution by contaminations are increasing rapidly, the problems of aquatic pollution with heavy metals which is one of the important pollutions indicate that necessary to assess in fish as an important source of human food. The aim of this study was investigated the sub-lethal effects of zinc chloride on hepatic enzymes activity in grey mullet (Mugil Cephalus). In th...
Background: Paraquat is a non-selective contact herbicide, widely used to control weeds in agriculture farms and aquatic plants in surface waters. Paraquat can have adverse effects on the health of aquatic organisms. The aim of this study was to detect the alterations in the blood biochemical parameters of common carp exposed to sub-lethal concentrations of commercial formulations of paraquat. ...
Lethal effects of thermal neutrons were compared with those of 60Co-ƒÁ-rays on the two types of Amoeba proteus. D37 doses against ƒÁ-rays were 2.5 •~ 105 (M-type) and 7.2 •~ 105 rads (P type), and those for thermal neutrons were 9.1 and 11.7 •~ 1013 n. cm-2 (total flux) respectively. Additions of AET, D2O or boron failed to increase or decrease the lethal effects of thermal neutrons. The lethal...
Adrenalectomized rats are 1000 times more sensitive to lethal effects of the double-stranded complex polyriboinosinic.polyribocytidylic acid than intact rats. They are protected from such lethal effects by corticosterone. The complex can rapidly induce diffuse, severe necrosis of villous epithelium in small intestine without damage in crypts. Injection of the individual homopolymers, polyriboin...
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