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Published on: November 8, 2015
[Increased thrombin-genesis in cyclosporine A-treated idiopathic nephrotic syndrome in children]
Marcin Tkaczyk1, Danuta Owczarek, Michał Nowicki
1Klinika Nefrologii i Dializoterapii Instytutu Centrum Zdrowia Matki Polki. iczmp.nefro@wp.pl
Insights
Cyclosporine A (CsA) treatment for childhood idiopathic nephrotic syndrome (INS) may increase blood clot risk. CsA elevated coagulation markers, suggesting a potential for thromboembolic events in children with INS.
Area of Science:
- Pediatric Nephrology
- Hematology
- Pharmacology
Context:
- Idiopathic nephrotic syndrome (INS) in children often requires immunosuppressive therapy.
- Cyclosporine A (CsA) is an effective treatment for steroid-dependent INS, but carries potential side effects.
- The impact of CsA on coagulation in pediatric INS patients is not fully understood.
Purpose:
- To investigate the effect of Cyclosporine A on the coagulation cascade in children with idiopathic nephrotic syndrome.
- To assess thrombinogenesis markers (F1+2 prothrombin fragments and thrombin-antithrombin complexes) in children treated with CsA.
- To compare coagulation activation between CsA-treated children in remission and those with INS relapse.
Summary:
- Children with INS in remission treated with CsA showed elevated F1+2 prothrombin fragments, indicating increased coagulation activation.
- Children with INS relapse, treated with glucocorticoids but not CsA, had F1+2 levels comparable to healthy controls.
- Biochemical disturbances were similar in both INS groups, suggesting CsA stimulates coagulation.
Impact:
- Cyclosporine A therapy may elevate the risk of thromboembolic events in children with idiopathic nephrotic syndrome.
- Findings highlight the need for monitoring coagulation status in pediatric INS patients on CsA.
- This research contributes to understanding the prothrombotic potential of CsA in pediatric nephrology.
Abstract:
Cyclosporine A (CsA) has been accepted as one of the most efficient therapies of idiopathic nephrotic syndrome (INS) in children. Despite its beneficial effect on clinical course of the disease, its use has been associated with a number of side-effects. This prompted us to study the influence of cyclosporine A on the coagulation cascade in nephrotic children. We examined thrombinogenesis in 16 children in remission of steroid-dependent idiopathic nephrotic syndrome treated with cyclosporine A. The concentrations of F1 + 2 prothrombin fragments and thrombin-antithrombin complexes were used as markers of coagulation cascade activation. The results were compared between 18 children with INS relapse who had responded to 8-week glucocorticoid treatment (not treated with cyclosporine A) and 20 healthy subjects. We found an increased concentration of F1 + 2 prothrombin fragments in children treated with CsA, while in children after 8 weeks of glicocorticoid therapy the concentration of this marker was comparable to that in the controls. Since we observed similar biochemical disturbances in both INS groups, we suggested that cyclosporine A was able to stimulate coagulation that might lead to an increased risk of thomboembolic events in children with clinical remission of INS.
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