TY - JOUR A1 - Rodríguez Sánchez, Elena AU - Navarro García, José Alberto AU - Aceves Ripoll, Jennifer AU - Abarca Zabalía, Judith AU - Susmozas Sánchez, Andrea AU - Bada Bosch, Teresa AU - Hernández Martínez, Eduardo AU - Mérida Herrero, Evangelina AU - Ruilope Urioste, Luis Miguel AU - Ruiz Hurtado, Gema AU - Et al. T1 - Variations in Circulating Active MMP-9 Levels during Renal Replacement Therapy Y1 - 2020 SN - 2218-273X UR - http://hdl.handle.net/11268/8985 AB - Renal replacement therapy (RRT) is complicated by a chronic state of inflammation and a high mortality risk. However, different RRT modalities can have a selective impact on markers of inflammation and oxidative stress. We evaluated the levels of active matrix metalloproteinase (MMP)-9 in patients undergoing two types of dialysis (high-flux dialysis (HFD) and on-line hemodiafiltration (OL-HDF)) and in kidney transplantation (KT) recipients. Active MMP-9 was measured by zymography and ELISA before (pre-) and after (post-) one dialysis session, and at baseline and follow-up (7 and 14 days, and 1, 3, 6, and 12 months) after KT. Active MMP-9 decreased post-dialysis only in HFD patients, while the levels in OL-HDF patients were already lower before dialysis. Active MMP-9 increased at 7 and 14 days post-KT and was restored to baseline levels three months post-KT, coinciding with an improvement in renal function and plasma creatinine. Active MMP-9 correlated with pulse pressure as an indicator of arterial stiffness both in dialysis patients and KT recipients. In conclusion, active MMP-9 is better controlled in OL-HDF than in HFD and is restored to baseline levels along with stabilization of renal parameters after KT. Active MMP-9 might act as a biomarker of arterial stiffness in RRT. KW - Diálisis KW - Tecnología médica KW - Enfermedad cardiovascular KW - Tratamiento médico KW - Tecnología médica LA - eng ER -