Mizerska-Wasiak Małgorzata, Such-Gruchot Agnieszka, Cichoń-Kawa Karolina, Turczyn Agnieszka, Małdyk Jadwiga, Miklaszewska Monika, Drożdż Dorota, Firszt-Adamczyk Agnieszka, Stankiewicz Roman, Rybi-Szumińska Agnieszka, Wasilewska Anna, Szczepańska Maria, Bieniaś Beata, Sikora Przemysław, Pukajło-Marczyk Agnieszka, Zwolińska Danuta, Pawlak-Bratkowska Monika, Tkaczyk Marcin, Zachwieja Jacek, Drożyńska-Duklas Magdalena, Żurowska Aleksandra, Gadomska-Prokop Katarzyna, Grenda Ryszard, Pańczyk-Tomaszewska Małgorzata
Department of Pediatrics and Nephrology, Medical University of Warsaw, 02-091 Warsaw, Poland.
Department of Pathology, Medical University of Warsaw, 02-091 Warsaw, Poland.
J Clin Med. 2021 Sep 26;10(19):4405. doi: 10.3390/jcm10194405.
The aim of the study was to evaluate the influence of the intensity of mesangial C3 deposits in kidney biopsy and the serum C3 level on the clinical course and outcomes of IgAN in children. The study included 148 children from the Polish Pediatric IgAN Registry, diagnosed based on kidney biopsy. Proteinuria, creatinine, IgA, C3 were evaluated twice in the study group, at baseline and the end of follow-up. Kidney biopsy was categorized using the Oxford classification, with a calculation of the MEST-C score. The intensity of IgA and C3 deposits were rated from 0 to +4 in immunofluorescence microscopy. The intensity of mesangial C3 > +1 deposits in kidney biopsy has an effect on renal survival with normal GFR in children with IgAN. A reduced serum C3 level has not been a prognostic factor in children but perhaps this finding should be confirmed in a larger group of children.
本研究的目的是评估肾活检中系膜C3沉积强度和血清C3水平对儿童IgA肾病临床病程及预后的影响。该研究纳入了波兰儿童IgA肾病登记处的148名儿童，均基于肾活检确诊。在研究组中，于基线期和随访结束时对蛋白尿、肌酐、IgA、C3进行了两次评估。肾活检采用牛津分类法进行分类，并计算MEST-C评分。在免疫荧光显微镜下，IgA和C3沉积强度从0至+4进行分级。肾活检中系膜C3> +1沉积强度对IgA肾病儿童正常肾小球滤过率下的肾脏存活率有影响。血清C3水平降低在儿童中并非预后因素，但或许这一发现应在更大规模的儿童群体中得到证实。
