Related Experiment Video
Updated: Oct 14, 2025

Analyses of Proteinuria, Renal Infiltration of Leukocytes, and Renal Deposition of Proteins in Lupus-prone MRL/lpr Mice
Published on: June 8, 2022
Low disease activity state in juvenile-onset systemic lupus erythematosus
Kubra Ozturk1, Senğul Caglayan2, Ayse Tanatar3
1Department of Pediatric Rheumatology, Goztepe Prof. Dr Suleyman Yalcın City Hospital, Istanbul Medeniyet University, Istanbul, Turkey.
Objectives:
To determine the rate of achieving The Lupus Low Disease Activity State (LLDAS) in children with systemic lupus erythematosus (SLE) for tracing pertinent treatment modalities.
Methods:
A total of 122 juvenile-onset SLE (jSLE) patients from six pediatric rheumatology centers in Turkey were enrolled in the study. LLDAS-50 was defined as encountering LLDAS for at least 50% of the observation time. According to the achievement of LLDAS-50, clinical features, immunological profiles, and treatments of patients with jSLE have been revealed.
Results:
LLDAS of any duration was achieved by 82% of the cohort. Although only 10.8% of the patients achieved remission, 68.9% reached LLDAS-50. A significant difference was found between patients who reached LLDAS-50 and those who did not, in terms of the time to reach low-dose corticosteroid treatment (p = 0.002), the presence of subacute cutaneous findings (p = 0.007), and the presence of proteinuria (p = 0.002). Both of the groups were under similar treatment approaches. However, the number of patients being treated with corticosteroids at the last visit was found to be significantly higher in patients who achieved LLDAS-50 (p<0.001).
Conclusion:
Targeting LLDAS in jSLE, even with long-term, low-dose corticosteroid use, seems to be an achievable goal in clinical practice.
Related Concept Videos
Nephrotic Syndrome II : Assessment and Medical Management
Nephrotic Syndrome I : Introduction
Chronic Kidney Disease II: Clinical Manifestations
Autoimmune Disorders
Concept and Mechanism of Autoimmune Diseases
The immune...
Secondary Lymphoid Organs
The spleen is a vital organ in the lymphatic system, nestled in the upper left side of the abdomen. It is composed of two primary regions: the red pulp and the white pulp, each having distinct functions. The red pulp performs a significant role in blood filtration. It efficiently purges the blood of old or damaged red blood cells and...
Primary Lymphoid Organs
The red bone marrow is a soft, spongy tissue nestled in the interior of long bones such as the humerus and femur. It is the site...

