Vandana Pradhan1, Pallavi Pandit2, Anjali Rajadhyaksha3, Manisha Patwardhan4, Prathamesh Surve5, Pradnya Kamble6, Maxime Lecerf7, Jagadeesh Bayry8, Srinivas Kaveri9, K Ghosh10, Milind Y Nadkar11. 1. Scientist. 2. Senior Research Fellow, Department of Clinical and Experimental Immunology, National Institute of Immunohematology, Mumbai, Maharashtra. 3. Professor of Medicine, KEM Hospital, Mumbai, Maharashtra. 4. Technical Assistant. 5. Research Technician, Department of Clinical and Experimental Immunology. 6. Trainee, National Institute of Immunohaematology, Mumbai, Maharashtra. 7. Biomedical Engineer. 8. Scientist, Biomedical Engineer. 9. Director, INSERM, UMR-S 1138, Centre de Recherche des Cordeliers, Université Pierre et Marie Curie - Paris 6, F-75006, France. 10. Ex-Director, National Institute of Immunohematology, Mumbai, Maharashtra. 11. Professor, Dept. of Medicine and Head of Rheumatology, Seth GS Medical College & KEM Hospital, Mumbai, Maharashtra.
Abstract
OBJECTIVE: To identify the hematological manifestations and its association with serum ferritin levels in SLE patients from Western India. METHODS: Ninety clinically diagnosed SLE patients fulfilling ACR criteria were included. Disease activity was assessed at the time of evaluation using Systemic Lupus Erythematosus Disease Activity Index (SLEDAI). Sera were tested for serum ferritin levels by ELISA (Calbiotech, USA). Autoantibodies such as ANA, anti-dsDNA by indirect immunofluorescence test (IFA- Bio-Rad, USA) and anti-cardiolipin antibodies (ACA) to IgG and IgM isotypes and Anti-β2 GP antibodies to IgG and IgM isotypes were detected by ELISA using commercially available kits (Euroimmun, Lubeck, Germany). RESULTS: Out of 90 SLE patients studied, 41 patients (45.6%) showed hematological abnormalities, where anemia (82.9%), leucopenia (26.8%), autoimmune hemolytic anemia (AIHA) (14.6%) and idiopathic thrombocytopenic purpura (ITP) were noted in (34.1%) patients. Mean±SD serum ferritin levels among SLE patients were 270.2±266.0 ng/ml as compared to 29.0±15.8 ng/ml healthy normal controls (p<0.0001). A positive correlation between serum ferritin levels and SLEDAI scores (r= 0.2640, p=0.0124) and anti-dsDNA positivity was noted (r=0.32, p<0.0001). Serum ferritin levels were negatively correlated with hemoglobin levels (r=-0.5964, p=0.0001), WBC count (r=-0.1705, p=0.2316), platelet count ((r=-0.1701, P=0.2375), C3 levels (r=-0.4417, p=0.0034) and C4 levels (r=-0.0363, p=0.8215). CONCLUSIONS: Serum ferritin is an excellent marker of SLE which can be used for an evaluation of disease activity particularly in active stage of the disease mainly in patients having hematological and renal manifestations.
OBJECTIVE: To identify the hematological manifestations and its association with serum ferritin levels in SLEpatients from Western India. METHODS: Ninety clinically diagnosed SLEpatients fulfilling ACR criteria were included. Disease activity was assessed at the time of evaluation using Systemic Lupus Erythematosus Disease Activity Index (SLEDAI). Sera were tested for serum ferritin levels by ELISA (Calbiotech, USA). Autoantibodies such as ANA, anti-dsDNA by indirect immunofluorescence test (IFA- Bio-Rad, USA) and anti-cardiolipin antibodies (ACA) to IgG and IgM isotypes and Anti-β2 GP antibodies to IgG and IgM isotypes were detected by ELISA using commercially available kits (Euroimmun, Lubeck, Germany). RESULTS: Out of 90 SLEpatients studied, 41 patients (45.6%) showed hematological abnormalities, where anemia (82.9%), leucopenia (26.8%), autoimmune hemolytic anemia (AIHA) (14.6%) and idiopathic thrombocytopenic purpura (ITP) were noted in (34.1%) patients. Mean±SD serum ferritin levels among SLEpatients were 270.2±266.0 ng/ml as compared to 29.0±15.8 ng/ml healthy normal controls (p<0.0001). A positive correlation between serum ferritin levels and SLEDAI scores (r= 0.2640, p=0.0124) and anti-dsDNA positivity was noted (r=0.32, p<0.0001). Serum ferritin levels were negatively correlated with hemoglobin levels (r=-0.5964, p=0.0001), WBC count (r=-0.1705, p=0.2316), platelet count ((r=-0.1701, P=0.2375), C3 levels (r=-0.4417, p=0.0034) and C4 levels (r=-0.0363, p=0.8215). CONCLUSIONS: Serum ferritin is an excellent marker of SLE which can be used for an evaluation of disease activity particularly in active stage of the disease mainly in patients having hematological and renal manifestations.
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