Adsorption of mercury to urinary cells or particles

Urine of a young healthy man was added with varying amounts of mercuric chloride, incubated for 10 to 375 min, and separated into supernatant solution and precipitate by centrifugation at 105,000 X g for 60 min. Percentage of mercury amount in precipitate increased with the increase of mercury amount added. But this adsorption of mercury to urinary cells or particles could not completely account for the amount of mercury in human urine reported (Suzuki and Shishido 1975). The hypothesis that desquamation of tubular cells is a route of urinary mercury excretion in man is still sustained.