The role of lithium carbonate and lithium citrate in regulating urinary citrate level and preventing nephrolithiasis

Xiangbo Zhang, Piyush Aggarwal, Xiaoming Li, Crystale Oakman, Zhiping Wang, Ronald Rodriguez

Research output: Contribution to journalArticle

Abstract

Background and purpose: Urinary Citrate is an inhibitor of Calcium oxalate stone formation. It is reabsorbed in the proximal kidney through sodium dicarboxylate co-transporters (NaDC-1, NaDC-3) present in the renal tubular epithelium. Lithium (Li) is a known potent inhibitor of these transporters. We investigated the effect of lithium carbonate (LiC) and lithium citrate (LiCit) in regulating urinary citrate levels and preventing nephrolithiasis (NL) in the rat model. Experimental approach: We took 220 Wistar rats and induced nephrolithiasis in 130 of them by administering high doses of 5% ammonium oxalate (AmOx) for seven days and labeled them as Group B. Rest were labeled as Group A. Each group was then divided into 3 subgroups. First sub-group acted as control while other two were treated with either lithium carbonate (LiC) or lithium citrate (LiCit) for 21 days. Ten rats from each of the six sub-groups were randomly selected for sacrifice on 3rd, 7th and 14th day and additional 10th and 21st day from Li treated groups. Blood and urine samples were collected and analyzed on these days. The kidneys of the sacrificed rats were dissected and studied under light microscopy for crystal deposition (left kidney) and histological changes (right kidney). Key results: Urinary citrate levels were significantly increased in response to either LiC (p

Original languageEnglish (US)
Pages (from-to)215-222
Number of pages8
JournalInternational Journal of Biomedical Science
Volume5
Issue number3
StatePublished - Sep 15 2009

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Keywords

  • Kidney calculi
  • Lithium
  • Nephrolithiasis
  • Urinary citrate levels
  • Urolithiasis

ASJC Scopus subject areas

  • Biochemistry, Genetics and Molecular Biology(all)
  • Medicine(all)

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