selected for this study was much less than the reported LD50 value of sodium arsenate
for rats (Franke and Moxon, 1936), and was comparable to the dose used in
several previous studies to induce the toxic effects (Hood et al., 1988; Hood et al.,
1978, 1987). Since our objective was to study the acute effects of arsenic exposure,
hence sodium arsenate was injected in 4 doses, over a short period of time. Animals
in the control and FXO group received an equivalent amount of distilled water. The
rats were sacrificed on the sixth day after the last NaAs injection under light ether
anesthesia. Blood and urine samples were collected and kidneys were removed and
processed for the preparation of homogenates and brush border membrane vesicles
(BBMV) as described below. Each preparation of BBM/homogenate was made by
pooling the tissue (cortex/medulla) from 2 to 3 animals in each group. Thus, the
number of animals mentioned above contributed to 4–5 different preparations
for each group. Analyses of various parameters were performed simultaneously under
similar experimental conditions to avoid any day to day variations.
selected for this study was much less than the reported LD50 value of sodium arsenate
for rats (Franke and Moxon, 1936), and was comparable to the dose used in
several previous studies to induce the toxic effects (Hood et al., 1988; Hood et al.,
1978, 1987). Since our objective was to study the acute effects of arsenic exposure,
hence sodium arsenate was injected in 4 doses, over a short period of time. Animals
in the control and FXO group received an equivalent amount of distilled water. The
rats were sacrificed on the sixth day after the last NaAs injection under light ether
anesthesia. Blood and urine samples were collected and kidneys were removed and
processed for the preparation of homogenates and brush border membrane vesicles
(BBMV) as described below. Each preparation of BBM/homogenate was made by
pooling the tissue (cortex/medulla) from 2 to 3 animals in each group. Thus, the
number of animals mentioned above contributed to 4–5 different preparations
for each group. Analyses of various parameters were performed simultaneously under
similar experimental conditions to avoid any day to day variations.
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