The title compound, sodium calcium trimagnesium tris-(arsenate), an alluaudite-like arsenate, was prepared by solid-state reaction at high temperature. The structure is built up from edge-sharing MgO(6) octa-hedra in chains associated with the AsO(4) arsenate groups. The three-dimensional network leads to two different tunnels occupied statistically by Na(+) and Ca(2+). One As and one Mg atom l...

We have performed two-stage transformation assay using BALB/c 3T3 cells to determine initiating and promoting activities of disodium arsenate, sodium arsenite, monomethylarsonic acid (MMAA) and dimethylarsinic acid (DMAA). Treatment with these arsenic compounds at the initiating stage induced significant numbers of transformed foci when cells were post-treated with 12-O-tetradecanoylphorbol-13-...

Some pesticide chemicals are based on inorganic elements such as sulfur, copper (i.e. copper sulfate ‘Bordeaux mixture’, copper hydroxide, and copper oxychloride), and arsenic salts (i.e. lead arsenate, calcium arsenate, sodium arsenite), or they contain an inorganic element in their chemical structure such as the organometallic pesticides based on manganese dithiocarbamate (maneb), manganese a...

Abstract Previous studies have suggested that arsenic crosses the placenta and affects fetus development. The study under consideration aims to show comparative ameliorative effect of Moringa oleifera leaf flower extracts against sodium arsenate induced toxicity mice. Pregnant mice (N=44) were kept in lab divided into eleven group from (A K) orally administered doses 6 mg/kg, 12 mg/kg for arsen...

1. The methods employed in these and preceding (25-27) studies were shown to allow analysis of true cellular sodium and potassium concentrations. 2. The rate of reaccumulation of potassium by potassium-deficient cells is independent of the presence or absence of sodium in the external medium. 3. Phenylurethane (10(-3)M), a photosynthetic and metabolic inhibitor, causes a marked progressive loss...

In present study, growth, arsenic accumulation, and antioxidant responses in root of Isatis cappadocica were investigated in response to application of arsenate and phosphate. Reduction in root dry weights was significant with 1200 µM arsenate and 5 µM phosphate treatments. Phosphate had a steady effect on root dry weight improvement, especially in high arsenate treatments ≥ 200 μM. As concentr...

Whole embryo culture techniques were used to test the effects of sodium arsenate on the rates of DNA, RNA, and protein accumulation. Rat embryos were isolated on the 10th gestational day (sperm day = Day 0) either 4 or 24 hr after maternal injection. The cultivation period was for 24 or 42 hr. DNA, RNA, and protein values were not significantly different for in utero treatment 4 hr prior to dis...

PURPOSE Heme oxygenase (HO)-1 immunoreactivity (IR) was examined in normal untreated retina and in retinal explants after in vitro treatment with stress agents. METHODS Enucleated eyes from young adult C3H mice were immediately fixed and cryosectioned and the retina sections processed for immunocytochemistry with antibodies against HO-1 and glial fibrillary acidic protein (GFAP). From other e...

esca of grapevine is a serious and injurious disease in grape-growing all over the world, for which no effective control exists. the presented research ,in two separate experiments ,thirteen fungicides (benomyl, thiophanate-methyl thiram, mancozeb, fosetyl-al, metalaxyl mancozeb, caboxin thiram, ortiva, topas, penconazole , tebuconazole ,propiconazole, sodium arsenate, agri-fos ) were evaluated...