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Progranulin gene variability increases the risk for primary progressive multiple sclerosis in males

  • C FENOGLIO
  • , D SCALABRINI
  • , F ESPOSITO
  • , Cristoforo COMI
  • , P CAVALLA
  • , RIZ M DE
  • , V MARTINELLI
  • , PICCIO LM
  • , E VENTURELLI
  • , G FUMAGALLI
  • , R CAPRA
  • , L COLLIMEDAGLIA
  • , A GHEZZI
  • , RODEGHER ME
  • , M VERCELLINO
  • , M LEONE
  • , GIORDANA MT
  • , N BRESOLIN
  • , Francesco MONACO
  • , G COMI
  • E SCARPINI, BONESCHI F MARTINELLI, D. GALIMBERTI

Research output: Contribution to journalArticlepeer-review

Abstract

Progranulin (GRN) gene variability has been analyzed in a sample of 354 patients with multiple sclerosis (MS) compared with 343 controls. No significant differences were observed, but by stratifying according to MS subtypes, a significant increased frequency of the rs2879096 TT genotype was found in primary progressive MS (PPMS) patients versus controls (16.0 vs 3.5%, P0.023, odds ratio (OR) 5.2, 95% confidence interval (CI) 1.2-21.4). In addition, in PPMS, an association with the C allele of rs4792938 was observed (55.3 vs 33.5%, P0.011, OR 2.4, 95% CI 1.2-4.7). An independent population was studied as replication, failing to confirm results previously obtained. Stratifying according to gender, an association with rs4792938 C allele was found in male PPMS patients compared with controls (40.7 vs 26.9%, P0.002, OR 1.87, 95% CI 1.2-2.8). An association with the rs2879096T allele was observed (29.2 in patients compared with 18.9% in controls, P0.012, OR 1.77, 95% CI 1.1-2.8). Haplotype analysis showed that TC haplotype frequency is increased in PPMS male patients compared with male controls (25.7 vs 16.6%; P0.02, OR 1.69, 95% CI 1.1-2.7), whereas the respective GC haplotype seems to exert a protective effect, as its frequency is decreased in patients compared with controls (55.8% vs 70.9%; P0.001, OR 0.52, 95% CI 0.4-0.8). Therefore, GRN haplotypes likely influence the risk of developing PPMS in males.

Original languageEnglish
Pages (from-to)497-503
Number of pages7
JournalGenes and Immunity
Volume11
Issue number6
DOIs
Publication statusPublished - 2010

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