Cataract, the opacification of eye lens, is the leading cause of blindness worldwide. At present, the only remedy is surgical removal of the cataractous lens and substitution with a lens made of synthetic polymers. However, besides significant costs of operation and possible complications, an artificial lens just does not have the overall optical qualities of a normal one. Hence it remains a si...

HOSKINS, J. K. 1934 Most probable numbers for evaluation of coli-aerogenes test by fermentation tube method. Public Health Repts., 49, 393-405. LEIFSON, E. 1936 New selenite enrichment media for the isolation of typhoid and paratyphoid (Salmonella) bacilli. Am. J. Hyg., 24, 423-432. National Office of Vital Statistics,|Morbidity and Mentality Report, 1959, 7 (54), 4. NORTH, W. R. AND BARTRAM, M...

Cataract, the opacification of eye lens, is the leading cause of blindness worldwide. At present, the only remedy is surgical removal of the cataractous lens and substitution with a lens made of synthetic polymers. However, besides significant costs of operation and possible complications, an artificial lens just does not have the overall optical qualities of a normal one. Hence it remains a si...

A biofilm-forming strain of sulfate-reducing bacteria (SRB), isolated from a naturally occurring mixed biofilm and identified by 16S rDNA analysis as a strain of Desulfomicrobium norvegicum, rapidly removed 200 micro M selenite from solution during growth on lactate and sulfate. Elemental selenium and elemental sulfur were precipitated outside SRB cells. Precipitation occurred by an abiotic rea...

Selenium (Se) is a problematic contaminant for many regions worldwide. Adsorption is by far the most researched and most promising method in treating Se laden waters. The major limitations in using those adsorbents are the preferential adsorption for either selenite (SeO3) or selenate (SeO4) and interferences by anions such as phosphates. The objective of this study was to remove Se from aqueou...

echium amoenum is an iranian indigenous medicinal plant. in this research the effect of hydroalchoholic extract of this plant on sodium-selenite induced cataract formation was evaluated. fifty five white rat pups were selected and divided into six groups. in first group (control 1) no elements injected. second group (control 2) was received normal saline on 11-18 postpartum. hydroalchoholic ext...

Concentrations of dissolved selenium (Se) as large as 330 pg L-' have been detected in water samples &om bacW aquifers in the southern Powder River Basin (PRB) of northeastern Wyoming. During d a c e coal mining, rock mstwial overiymg the coal is redistributed in relation to its original stratigraphic position; exposure of the prewiously buried material to surface oxidizing conditions decreases...

Various enzymic systems, such as nitrite reductase, sulfite reductase and glutathione reductase, have been proposed for, or suspected to be involved in, the reduction of selenite in bacteria. As alphaproteobacteria have been shown to be highly tolerant to transition metal oxyanions, it seemed interesting to investigate the hypothetical involvement of these different enzymes in the reduction of ...