Concerning cystinuria and diamines

Cystinuria and renal transplantation.

Cystinuria—Diagnosis and Management

Cystinuria is an autosomal recessive disorder of cystine and dibasic amino acid transport across the luminal membrane of proximal tubule and small intestine. Two responsible genes have been identified: mutations in the SLC3A1 gene, located on the chromosome 2p, cause cystinuria type I, while variants in SLC7A9 have been demonstrated in nontype I cystinuria. The poor urinary solubility of cystin...

Cyclobutane-derived diamines: synthesis and molecular structure.

Cyclobutane diamines (i.e., cis- and trans-1,3-diaminocyclobutane, 6-amino-3-azaspiro[3.3]heptane, and 3,6-diaminospiro[3.3]heptane) are considered as promising sterically constrained diamine building blocks for drug discovery. An approach to the syntheses of their Boc-monoprotected derivatives has been developed aimed at the preparation of multigram amounts of the compounds. These novel synthe...

Amino acid imbalance in cystinuria.

After oral ingestion of a free amino acid mixture by three cystinuric patients, plasma increments of lysine and arginine were lower and those of many other amino acids were significantly higher than those found in control subjects. Similar results were obtained in control subjects after amino acid imbalance had been artificially induced by the omission of cystine, lysine, and arginine from the ...

The aetiology of canine cystinuria.