This situation made it difficult for spiders to excrete
from their hunting sites without soiling nearby vegetation.
In salt-sensitive rats, the team demonstrated that reducing brain Gaq proteins returned plasma vasopressin to normal levels, decreased salt-induced water retention, and restored the animal's ability to excrete
Most people who get kidney stones made of calcium oxalate (the most common kind) excrete
too much calcium in their urine.
Their studies confirmed that the more salt people consume, the more fluid their kidneys excrete
, and the thirstier they are.
An unaffected person can excrete
up to 100 mg/day of cystine into the urine, as do many heterozygotes.
Saltwater Fish: Drink lots of seawater; excrete
salt through gills; excrete
urine with a low salt concentration.
(How much sodium you excrete
is the best gauge of how much you consume.)
Pharmaceuticals taint waterways because people excrete
many of the drugs they take but treatment plants don't extract all the chemicals (SN: 4/1/00, p.
"We do not recommend daily doses higher than 1,000 mg," he adds, "because there is no clear benefit...and there may be adverse consequences." Above 1,000 mg, he says, people excrete
more oxalate and urate in their urine, and that could increase the risk of kidney stones.
The flies seem to readily excrete
the metal once they reach maturity, Marc Amyot of the University of Montreal in Quebec and his colleagues say in the March Environmental Toxicology and Chemistry.
The babies had far lower levels of mercury in their hair than other infants, leading to speculation autistic children either don't absorb mercury or more likely, can't excrete
The reason is simple: The more sodium you excrete
, the more calcium you lose.