Sampath Prahalad
Overview
My career vision is to determine who gets juvenile idiopathic arthritis and why? Juvenile idiopathic arthritis (JIA) is the most common cause of chronic arthritis in children, affecting 1 in 1000 children. Although it was once thought that children with JIA outgrew their arthritis it is now clear that a significant number of children with JIA go on to have arthritis as adults. Both genetic and environmental factors predispose to the development of JIA.
Our research focuses on identifying genetic factors that predispose to JIA susceptibility. We have assembled a large cohort of cases with JIA and healthy controls. We have also investigated a number of candidate genes for association with JIA and have demonstrated that variants in genes encoding CCR5, STAT4, TNFAIP3, and C12ORF30 are associated with JIA susceptibility.
We have demonstrated that siblings of children have a twelve fold excess risk of JIA and first cousins of children with JIA have a six fold excess risk of JIA compared to the general population. We have also demonstrated that children with JIA and their family members are at increased risk of autoimmune disorders in general.
We are now focusing on a rare subtype of JIA, which resembles rheumatoid arthritis (RA) seen in adults. RA is a common cause of arthritis in adults occurring around the age of 50. Several children, some as young as 2 develop the same type of arthritis.
We are investigating the factors that predispose to Childhood Onset of RA. As a physician-scientist, I also see children with JIA and other childhood rheumatic diseases from GA and nearby states at Emory Childrens Center and Childrens Healthcare of Atlanta Hospitals.
Academic Appointment
- Professor of Pediatrics, Division of Pediatric Rheumatology, Pediatrics, Emory University School of Medicine
- Professor, Human Genetics, Human Genetics, Emory University School of Medicine
- Marcus Professor of Pediatric Rheumatology, Division of Pediatric Rheumatology, Emory University School of Medicine
Education
Degrees
- MSc from University of Cincinnati
- D.C.H. from Royal College of Physicians
- M.B.B.S from Sri Venkateswara University Medical College
Research
Focus
- My vision is to determine who gets juvenile arthritis and why. I have investigated genetic and epidemiological factors influencing JIA, as well as clustering of JIA and autoimmunity. I have at hand DNA from ~3000 individuals, including > 900 children with JIA( 400 at Emory), and ~1000 controls for candidate-gene and genome-wide studies. I am currently focusing on the childhood onset of RA, which typically affects adults in their 40s. I head a collaborative effort that has assembled a cohort of >250 children with RA from multiple sites in the US
Publications
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Allogeneic haematopoietic stem-cell transplantation for children with refractory systemic juvenile idiopathic arthritis and associated lung disease: outcomes from an international, retrospective cohort study.
Lancet Rheumatol Volume: 7 Page(s): e243 - e251
04/01/2025 Authors: Matt MG; Drozdov D; Bendstrup E; Glerup M; Hauge E-M; Masmas T; Schneider EC; Zeilhofer UB; Abu-Arja RF; Driest KD -
Incidence of Leading Causes of Pediatric Chronic Kidney Disease Using Electronic Health Record-Driven Computable Phenotype.
Kidney360
03/04/2025 Authors: Beus JM; Liu K; Westbrook A; Harding JL; Orenstein EW; Shin HS; Kandaswamy S; Wekon-Kemeni C; Pavkov ME; Xu F -
Active Vibrational Achilles Tendon Sensing for Identifying and Characterizing Inflammatory Symptomatology in Enthesitis Related Arthritis.
IEEE Trans Biomed Eng Volume: 72 Page(s): 645 - 654
02/01/2025 Authors: Goossens Q; Locsin M; Ponder LA; Chan M; Ozmen GC; Prahalad S; Inan OT -
Racial Disparities and Achievement of the Low Lupus Disease Activity State: A CARRA Registry Study.
Arthritis Care Res (Hoboken) Volume: 77 Page(s): 38 - 49
01/01/2025 Authors: Soulsby WD; Olveda R; He J; Berbert L; Weller E; Barbour KE; Greenlund KJ; Schanberg LE; von Scheven E; Hersh A -
Interleukin (IL)-1/IL-6-Inhibitor-Associated Drug Reaction With Eosinophilia and Systemic Symptoms (DReSS) in Systemic Inflammatory Illnesses.
J Allergy Clin Immunol Pract Volume: 12 Page(s): 2996 - 3013.e7
11/01/2024 Authors: Saper VE; Tian L; Verstegen RHJ; Conrad CK; Cidon M; Hopper RK; Kuo CS; Osoegawa K; Baszis K; Bingham CA -
Implementation study of the CARRA Uveitis Consensus Treatment Plans: feasibility for clinical practice and applicability for research.
Pediatr Rheumatol Online J Volume: 22 Page(s): 88
10/07/2024 Authors: Chang MH; Barbar-Smiley F; Akoghlanian S; Drew J; Angeles-Han ST; Quinlan-Waters M; Bohnsack JF; Cooper AM; Edelheit B; Twachtman-Bassett J -
Enrichment of Rare Variants of Hemophagocytic Lymphohistiocytosis Genes in Systemic Juvenile Idiopathic Arthritis.
Volume: 76 Page(s): 1566 - 1572
10/01/2024 Authors: Correia Marques M; Rubin D; Shuldiner EG; Datta M; Schmitz E; Gutierrez Cruz G; Patt A; Bennett E; Grom A; Foell D -
Shared genomic segments analysis identifies MHC class I and class III molecules as genetic risk factors for juvenile idiopathic arthritis.
HGG Adv Volume: 5 Page(s): 100277
04/11/2024 Authors: Avery CN; Russell ND; Steely CJ; Hersh AO; Bohnsack JF; Prahalad S; Jorde LB -
Enrichment of Rare Variants of Hemophagocytic Lymphohistiocytosis Genes in Systemic Juvenile Idiopathic Arthritis.
medRxiv
03/15/2024 Authors: Marques MC; Rubin D; Shuldiner E; Datta M; Schmitz E; Cruz GG; Patt A; Bennett E; Grom A; Foell D -
Part 5: Allogeneic HSCT in refractory SJIA with lung disease; recent cases from centers in North America & Europe.
Pediatr Rheumatol Online J Volume: 21 Page(s): 86
01/05/2024 Authors: Grom AA; Canna SW; Abu-Arja RF; Sinha R; Peixoto L; Cannizzaro E; Chandrakasan S; Driest K; Marsh R; Neven B