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| Content Provider | Springer Nature Link |
|---|---|
| Author | Guillén, M. Corella, D. Cabello, M.L. García, A.M. Portolés, O. Hernández Yago, J. |
| Copyright Year | 2000 |
| Abstract | Cystinuria is an inherited metabolic disease characterized by an abnormal urinary excretion of cystine and dibasic amino acids. Formation of renal calculi, recurrent infections and renal failure are the main complications of this disease. The SLC3A1 gene, which codes for a dibasic amino acid transporter protein, is involved in the pathogenesis of cystinuria. We investigated the possible association between molecular variants (M467T, E483X, T216 M and 114 C→A) within the SLC3A1 gene and some phenotypical traits in a Spanish area. The study population consisted of 45 cystinuria patients, 42 cystinuria relatives and 81 healthy control subjects. Only the M467T mutation was found in chromosomes of cystinuria patients and relatives. However, the 114 C→A polymorphism was detected in cystinuria patients, in relatives and in control subjects but with different prevalences. Moreover, a statistically significant association between this polymorphism and urinary amino acid levels was found in cystinuria patients (P<0.05). Subjects with the C/C genotype showed significantly higher urinary levels of cystine, arginine and their sum as compared with carriers of the A allele (P<0.05). When multiple linear regression analysis was performed in cystinuria patients, the 114 C→A polymorphism remained significantly associated (P=0.047) with cystine levels even after controlling for age, gender and the M467T mutation. Furthermore, we also found a statistically significant interaction term (P=0.028) between M467T and 114 C→A in determining urinary cystine levels. According to our results, the 114 C→A polymorphism might be a marker of a functional variant in the SLC3A1 gene or in other genes related to urinary amino acid excretion in cystinuria patients. |
| Starting Page | 314 |
| Ending Page | 320 |
| Page Count | 7 |
| File Format | |
| ISSN | 03406717 |
| Journal | Human Genetics |
| Volume Number | 106 |
| Issue Number | 3 |
| e-ISSN | 14321203 |
| Language | English |
| Publisher | Springer-Verlag |
| Publisher Date | 2000-02-24 |
| Publisher Place | Berlin, Heidelberg |
| Access Restriction | One Nation One Subscription (ONOS) |
| Content Type | Text |
| Resource Type | Article |
| Subject | Genetics Genetics (clinical) |
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