Gluten-Free Diet in Childhood Difficult-to-Treat Nephrotic Syndrome: A Pilot Feasibility Study

Introduction: Minimal change disease in childhood can follow a frequently relapsing or steroid-dependent course in up to 40% of cases. Second-line immunosuppressive medications that are used to manage these patients are associated with significant adverse effects. There is a need for safer alternati...

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Main Authors: Tarak Srivastava, Katherine M. Dell, Kevin V. Lemley, Debbie S. Gipson, Frederick J. Kaskel, Kevin Edward Meyers, Christian Faul, Ayelet Goldhaber, LauraJane Pehrson, Howard Trachtman
Format: Article
Language:English
Published: Karger Publishers 2022-06-01
Series:Glomerular Diseases
Subjects:
Online Access:https://www.karger.com/Article/FullText/525587
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author Tarak Srivastava
Katherine M. Dell
Kevin V. Lemley
Debbie S. Gipson
Frederick J. Kaskel
Kevin Edward Meyers
Christian Faul
Ayelet Goldhaber
LauraJane Pehrson
Howard Trachtman
author_facet Tarak Srivastava
Katherine M. Dell
Kevin V. Lemley
Debbie S. Gipson
Frederick J. Kaskel
Kevin Edward Meyers
Christian Faul
Ayelet Goldhaber
LauraJane Pehrson
Howard Trachtman
author_sort Tarak Srivastava
collection DOAJ
description Introduction: Minimal change disease in childhood can follow a frequently relapsing or steroid-dependent course in up to 40% of cases. Second-line immunosuppressive medications that are used to manage these patients are associated with significant adverse effects. There is a need for safer alternative treatments for difficult-to-treat nephrotic syndrome. Therefore, we conducted an open-label feasibility study to assess the safety and efficacy of a gluten-free diet as treatment for pediatric patients with difficult-to-treat nephrotic syndrome. As a second aim, we sought to determine if the plasma zonulin concentration can identify those who are more likely to respond to this intervention. Methods: Seventeen patients were placed on a gluten-free diet for 6 months. A positive response was defined as a 50% reduction in the relapse rate compared to the preceding 6 months or the ability to discontinue 1 immunosuppressive drug. Results: Five (29%) participants had a positive response to the dietary intervention. The gluten-free diet was well tolerated with no clinical or laboratory adverse events. Plasma zonulin concentration was elevated in patients who failed to benefit from the gluten-free diet. Discussion/Conclusion: A gluten-free diet may be a useful adjunctive intervention for patients with difficult-to-treat nephrotic syndrome that can be implemented prior to resorting to second-line immunosuppressive therapy. Development of the plasma zonulin level as a biomarker to predict efficacy would facilitate rational use of a gluten-free diet in the management of nephrotic syndrome.
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spelling doaj.art-47cf391d09624317bd22d0ca8697b20f2022-12-22T02:29:37ZengKarger PublishersGlomerular Diseases2673-36332022-06-011810.1159/000525587525587Gluten-Free Diet in Childhood Difficult-to-Treat Nephrotic Syndrome: A Pilot Feasibility StudyTarak Srivastava0Katherine M. Dell1Kevin V. Lemley2Debbie S. Gipson3https://orcid.org/0000-0003-4473-9045Frederick J. Kaskel4Kevin Edward Meyers5https://orcid.org/0000-0001-6653-269XChristian Faul6https://orcid.org/0000-0002-7512-0977Ayelet Goldhaber7LauraJane Pehrson8https://orcid.org/0000-0002-4612-1751Howard Trachtman9https://orcid.org/0000-0001-7447-9489Children’s Mercy Hospital, Kansas City, MO, USACleveland Clinic-Children’s, Case Western Reserve University, Cleveland, OH, USAChildren’s Hospital Los Angeles, Los Angeles, CA, USAC S Mott Hospital, Ann Arbor, MI, USAChilden’s Hospital at Montefiore, Bronx, NY, USAChildren’s Hospital of Philadelphia, Philadelphia, PA, USAUniversty of Alabama-Birmingham, Birmingham, AL, USAHassenfeld Children’s Hospital, NYU Grossman School of Medicine, New York, NY, USAHassenfeld Children’s Hospital, NYU Grossman School of Medicine, New York, NY, USAHassenfeld Children’s Hospital, NYU Grossman School of Medicine, New York, NY, USAIntroduction: Minimal change disease in childhood can follow a frequently relapsing or steroid-dependent course in up to 40% of cases. Second-line immunosuppressive medications that are used to manage these patients are associated with significant adverse effects. There is a need for safer alternative treatments for difficult-to-treat nephrotic syndrome. Therefore, we conducted an open-label feasibility study to assess the safety and efficacy of a gluten-free diet as treatment for pediatric patients with difficult-to-treat nephrotic syndrome. As a second aim, we sought to determine if the plasma zonulin concentration can identify those who are more likely to respond to this intervention. Methods: Seventeen patients were placed on a gluten-free diet for 6 months. A positive response was defined as a 50% reduction in the relapse rate compared to the preceding 6 months or the ability to discontinue 1 immunosuppressive drug. Results: Five (29%) participants had a positive response to the dietary intervention. The gluten-free diet was well tolerated with no clinical or laboratory adverse events. Plasma zonulin concentration was elevated in patients who failed to benefit from the gluten-free diet. Discussion/Conclusion: A gluten-free diet may be a useful adjunctive intervention for patients with difficult-to-treat nephrotic syndrome that can be implemented prior to resorting to second-line immunosuppressive therapy. Development of the plasma zonulin level as a biomarker to predict efficacy would facilitate rational use of a gluten-free diet in the management of nephrotic syndrome.https://www.karger.com/Article/FullText/525587glomerular diseasenephrotic syndromeproteinuriagluten-free dietpilot studychildhooddifficult-to-treat diseasezonulin
spellingShingle Tarak Srivastava
Katherine M. Dell
Kevin V. Lemley
Debbie S. Gipson
Frederick J. Kaskel
Kevin Edward Meyers
Christian Faul
Ayelet Goldhaber
LauraJane Pehrson
Howard Trachtman
Gluten-Free Diet in Childhood Difficult-to-Treat Nephrotic Syndrome: A Pilot Feasibility Study
Glomerular Diseases
glomerular disease
nephrotic syndrome
proteinuria
gluten-free diet
pilot study
childhood
difficult-to-treat disease
zonulin
title Gluten-Free Diet in Childhood Difficult-to-Treat Nephrotic Syndrome: A Pilot Feasibility Study
title_full Gluten-Free Diet in Childhood Difficult-to-Treat Nephrotic Syndrome: A Pilot Feasibility Study
title_fullStr Gluten-Free Diet in Childhood Difficult-to-Treat Nephrotic Syndrome: A Pilot Feasibility Study
title_full_unstemmed Gluten-Free Diet in Childhood Difficult-to-Treat Nephrotic Syndrome: A Pilot Feasibility Study
title_short Gluten-Free Diet in Childhood Difficult-to-Treat Nephrotic Syndrome: A Pilot Feasibility Study
title_sort gluten free diet in childhood difficult to treat nephrotic syndrome a pilot feasibility study
topic glomerular disease
nephrotic syndrome
proteinuria
gluten-free diet
pilot study
childhood
difficult-to-treat disease
zonulin
url https://www.karger.com/Article/FullText/525587
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