Immune complex disease consistent with systemic lupus erythematosus in a patient with lysinuric protein intolerance

1996 ◽  
Vol 19 (5) ◽  
pp. 627-634 ◽  
Author(s):  
H. Parsons ◽  
F. Snyder ◽  
T. Bowen ◽  
J. Klassen ◽  
A. Pinto
1998 ◽  
Vol 157 (2) ◽  
pp. 130-131 ◽  
Author(s):  
T. Kamoda ◽  
Y. Nagai ◽  
M. Shigeta ◽  
C. Kobayashi ◽  
T. Sekijima ◽  
...  

2001 ◽  
Vol 160 (8) ◽  
pp. 522-523 ◽  
Author(s):  
Minako Aoki ◽  
Toshiyuki Fukao ◽  
Yukiko Fujita ◽  
Mizuho Watanabe ◽  
Takahide Teramoto ◽  
...  

2021 ◽  
Vol 9 ◽  
Author(s):  
Josefina Longeri Contreras ◽  
Mabel A. Ladino ◽  
Katherine Aránguiz ◽  
Gonzalo P. Mendez ◽  
Zeynep Coban-Akdemir ◽  
...  

Lysinuric protein intolerance (LPI) is an inborn error of metabolism caused by defective transport of cationic amino acids in epithelial cells of intestines, kidneys and other tissues as well as non-epithelial cells including macrophages. LPI is caused by biallelic, pathogenic variants in SLC7A7. The clinical phenotype of LPI includes failure to thrive and multi-system disease including hematologic, neurologic, pulmonary and renal manifestations. Individual presentations are extremely variable, often leading to misdiagnosis or delayed diagnosis. Here we describe a patient that clinically presented with immune dysregulation in the setting of early-onset systemic lupus erythematosus (SLE), including renal involvement, in whom an LPI diagnosis was suspected post-mortem based on exome sequencing analysis. A review of the literature was performed to provide an overview of the clinical spectrum and immune mechanisms involved in this disease. The precise mechanism by which ineffective amino acid transport triggers systemic inflammatory features is not yet understood. However, LPI should be considered in the differential diagnosis of early-onset SLE, particularly in the absence of response to immunosuppressive therapy.


2021 ◽  
Vol 8 (1) ◽  
pp. e000469
Author(s):  
Alain Cornet ◽  
Jeanette Andersen ◽  
Kirsi Myllys ◽  
Angela Edwards ◽  
Laurent Arnaud

ObjectiveThe aim of this study was to analyse the 2020 burden of Systemic Lupus Erythematosus (SLE) in Europe, from the patients’ perspective.MethodsIn May 2020, Lupus Europe, the European umbrella patient association for SLE, designed and disseminated a multilingual anonymous online survey to individuals with a self-reported physician’s diagnosis of SLE living in Europe.ResultsData from 4375 SLE survey respondents (95.9% women, median age: 45 (IQR: 36–54) years, 70.7% Caucasians) from 35 European countries were analysed. The median age at SLE diagnosis was 30 years (IQR: 22–40) and the median diagnosis delay was 2 years (IQR: 0–6). The most commonly affected organ-systems included the joints (81.8%) and skin (59.4%), with renal involvement in 30%. Another diagnosis was given before that of SLE in 45.0%, including psychological/mental disorders in 9.1% and fibromyalgia in 5.9%. The median number of symptoms reported was 9 (IQR: 6–11) out of 21, with fatigue most common (85.3%) and most bothersome. The median number of SLE-related medications was 5 (IQR: 3–7), including antimalarials (75%), oral glucocorticoids (52.4%), immunosuppressants (39.8%) and biologics (10.9%). Respondents reported significant impact over their studies, career and emotional/sexual life in 50.7%, 57.9% and 38.2%, respectively. Appropriate access to care was highly variable across countries and care component.ConclusionThis survey underlines the 2020 burden and strong heterogeneity in the care of SLE across Europe, from the patient’s perspective. Altogether, these data may prove crucial to physicians, patients and policy-makers to improve the diagnosis and management of this rare and complex disease.


1983 ◽  
Vol 26 (5) ◽  
pp. 637-644 ◽  
Author(s):  
Robert E. Boyd ◽  
Daniel A. Birchmore ◽  
Donald L. Kaiser ◽  
Alice C. Young ◽  
John S. Davis

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