Commercially available alkaline water has minimal alkali content and offers no benefits compared with tap water and other methods for adults with uric acid and cystine urolithiasis, data show ...

There are three types of cystinuria with the current classification system as follows: Type A: mutation in both SLC3A1 alleles, with normal cystine and dibasic amino acid excretion in the urine.

During the control period in Case 1 the urine manifested a + + + + test for crystals, a strongly positive qualitative nitroprusside test and an average of 1334 mg. of cystine per twenty-four hours ...

The cystine content of such a medium was less than 0.002 μmole of one-half cystine per 100 ml. Amino acids in plasma and tissues were measured with a Beckman Spinco model 120B amino acid analyzer ...

The cystine crystals accumulate in a large range of tissues and organs including the kidneys, conjunctiva, cornea, liver, spleen, lymph nodes, muscle, brain, thyroid, intestines and bone marrow.

The formation of L-cystine stones is a consequence of excessive levels of L-cystine in the urine. L-cystine forms into crystals, which aggregate into stones, reaching up to a centimeter in diameter.

Researchers have developed a method for curbing the growth of crystals that form cystine kidney stones. Their findings may offer a pathway to a new method for the prevention of kidney stones.