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Case Report

Noonan Syndrome and Systemic Lupus Erythematosus: Association or Risk Factor?

Cerpa-Cruz S1*, Martínez-Valles MA1, Olmedo-Gaytan AG2, Pérez-Lizárraga RI2, Rodríguez-Cortes E1, García-Espinosa A1, Aguilera Mora LF2, Anaya Silva I2, Martínez- Bonilla G1, González -Díaz V1 and Gutiérrez-Ureña S1

1Rheumatology and Immunology Department, Civil de Guadalajara “Fray Antonio Alcalde” Jalisco, Mexico

2Internal Medicine Department, Hospital Civil de Guadalajara “Fray Antonio Alcalde” Jalisco, Mexico

*Corresponding Author:
Cerpa-Cruz S
Rheumatology and Immunology Department
Civil de Guadalajara “Fray Antonio Alcalde” Jalisco, Mexico
E-mail: [email protected]

Received date: June 17, 2013; Accepted date: August 21, 2013; Published date: August 27, 2013

Citation: Cerpa-Cruz S, Martínez-Valles MA, Olmedo-Gaytan AG, Pérez- Lizárraga RI, Rodríguez-Cortes E, et al. (2013) Noonan Syndrome and Systemic Lupus Erythematosus: Association or Risk Factor? Int J Genomic Med 1:107. doi: 10.4172/2332-0672.1000107

Copyright: © 2013 Cerpa-Cruz S, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.


Aim: The RAS/MAPK signaling pathway proteins with germline mutations in their respective genes are associated with several disorders such as Noonan, LEOPARD, neurofibromatosis type 1, Costello and cardio-facio-cutaneous syndromes. Some monogenic conditions are associated with the development of systemic lupus erythematosus (SLE), in medical literature are few reports that describe the association of RAS opathies and autoimmune disease. Our aim was to describe the clinical picture of a patient with diagnosis of Noonan and SLE.

Methods: We report a clinical case of a 24-year-old woman with Noonan syndrome who developed SLE according to American College of Rheumatology criteria for the classification of SLE. The patient had arthritis, serositis, lymphopenia, proteinuria, high levels of antinuclear antibodies and anti-ds DNA positive. This rare association then driven to search the medical literature for English articles on the subjects of Noonan and SLE in Pubmed.

Results: Our patient had oligoarthritis, serositis, lymphopenia, ISN/RPS Class IV lupus nephritis, ANA 1:1280 homogeneous pattern and anti-dsDNA antibodies very similar to the 8 patients already reported in literature.

Conclusion: There are nine cases reported with the association of two rare diseases, Noonan syndrome and SLE, this connection could suggests that RAS opathies may be a risk factor to the development of autoimmune disorders.

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