Recurrence of complement factor H-related protein 5 nephropathy in a renal transplant.

Complement factor H-related protein 5 (CFHR5) nephropathy is a familial renal disease endemic in Cyprus. It is characterized by persistent microscopic hematuria, synpharyngitic macroscopic hematuria and progressive renal impairment. Isolated glomerular accumulation of complement component 3 (C3) is typical with variable degrees of glomerular inflammation.

Atypical hemolytic uremic syndrome: telling the difference between H and Y.

Mutations in the complement factor H (CFH) gene are frequently associated with atypical hemolytic uremic syndrome (aHUS). Hakobyan et al. have developed novel reagents that can rapidly determine the contribution of each CFH allele to the total plasma CFH pool, showing that low-expression CFH alleles are important risk factors for the development of aHUS.