NEW DRUGS TO DISSOLVE KIDNEY STONES
If you have gone
through that excruciating pain from a kidney stone and are prone to develop
more, here comes good news.
According to a new
study, a class of drugs approved to treat leukemia and epilepsy also may be
effective against kidney stones.
The drugs are histone
deacetylase inhibitors or HDAC inhibitors.
Researchers found that
two of them – Vorinostat and trichostatin A – lower levels of calcium and
magnesium in the urine.
Both calcium and
magnesium are key components of kidney stones.
“We are hopeful this
class of drugs can dissolve kidney stones because its effects on reducing
calcium and magnesium are exclusive to kidney cells,” said Jianghui Hou, an
assistant professor of medicine at Washington University’s school of medicine
in St Louis.
In the mice, they
achieved dramatic effects at a fraction of the dosage used to treat leukemia
and without significant side effects.
Some people are
genetically prone to developing kidney stones and they naturally release too
much calcium into the urine.
Typically, doctors
recommend drinking lots of water to help pass kidney stones from the body.
In the new study on
mice, Hou and his colleagues showed that small doses of Vorinostat reduced
calcium levels in the urine by more than 50 percent and magnesium levels by
more than 40 percent.
Similar results were
noted for trichostatin A.
“We now want to test
the drug in clinical trials for patients with kidney stones,” Hou concluded.
The research appeared
online in the Journal of the American Society of Nephrology.
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