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Coeliac sprue-associated membranoproliferative glomerulonephritis (MPGN).

AbstractCoeliac sprue (CS) may occur in association with immune complex-mediated diseases, including IgA nephropathy, dermatitis herpetiformis and thyroiditis. An association of CS with membranoproliferative glomerulonephritis (MPGN) type 1 is rare, with only two prior cases reported. Here we describe a 45-year-old man with no prior medical history who presented initially with microhaematuria, subnephrotic proteinuria and hypocomplementaemia. A renal biopsy revealed MPGN type 1 with negative serologic workup for secondary causes. The patient was treated conservatively with angiotensin-converting enzyme inhibitors. Several months later, he developed daily non-bloody diarrhoea and was found to have worsening hypoalbuminaemia, hypophosphataemia and severe iron deficiency anaemia. A diagnosis of CS was established based on elevated tTGA (IgA anti-tissue transglutaminase) antibody and positive IgA antiendomysial antibody titres. Proteinuria resolved completely following the initiation of a gluten-free diet, without the use of immunosuppressive therapy and despite tapering of angiotensin-converting enzyme inhibitor. This case illustrates that CS-associated MPGN may precede overt clinical evidence of coeliac disease and may respond to gluten-free diet, without resort to immunosuppressive therapy.
AuthorsKenar D Jhaveri, Vivette D D'Agati, Robert Pursell, David Serur (Affiliation: Division of Nephrology and Hypertension, New York Presbyterian Hospital at Weill Cornell Medical Centre, College of Physicians and Surgeons, Columbia University, New York, NY, USA. Kdj200 at gmail.com)
JournalNephrology, dialysis, transplantation : official publication of the European Dialysis and Transplant Association - European Renal Association (Nephrol Dial Transplant) Vol. 24 Issue 11 Pg. 3545-8 (Nov 2009) ISSN: 1460-2385 [Electronic] England
PMID19625370 (Publication Type: Journal Article)