Accelerate is managed by the UCSF Clinical and Translational Science Institute (CTSI), part of the Clinical and Translational Science Award program funded by the National Center for Advancing Translational Sciences (Grant Number UL1 TR000004) at the National Institutes of Health (NIH).
Each one can produce a stone. A kidney stone is a solid mass made up of tiny crystals from the minerals calcium, oxalate and uric acid. Gallstones are hard, pebble-like cholesterol or pigment deposits that form inside the gallbladder. They can be as small as a grain of sand or as large as a golf ball.
Types of stones. Stones are made of minerals in the urine that form crystals. Sometimes the crystals grow into stones. About 85% of the stones are composed of calcium, and the remainder are composed of various substances, including uric acid, cystine, or struvite. Struvite stonesâa mixture of magnesium, ammonium, and phosphateâare also called infection stones, because they form only in infected urine.