期刊
PEDIATRIC NEPHROLOGY
卷 26, 期 10, 页码 1775-1780出版社
SPRINGER
DOI: 10.1007/s00467-010-1725-5
关键词
Electrokinetic; Permselectivity; Albumin; Endothelial cells; Filtration
资金
- German Research Foundation (DFG) [TP17 SFB/Transregio 57]
- NephCure Foundation
- ERC
- Excellence Initiative by the DFG [OPBo45]
- Medical Faculty of the RWTH Aachen
In recent years, the podocyte, with its elaborate cytoarchitecture and slit diaphragm, has been the focus of extensive research, yet its precise role in the glomerular filtration barrier is still debated. There are puzzling observations indicating that a comprehensive mechanistic model for glomerular filtration is still necessary. There is no doubt that podocytes are essential for glomerular filtration barrier integrity. However, most albumin never reaches the podocyte because it is prevented from entering the glomerular filter at the endothelium level. Another puzzling observation is that the glomerular filter never clogs despite its high load of several kilograms of plasma proteins per day. Recently, we proposed a novel model in which an electrical potential difference is generated across the glomerular filtration barrier by filtration. The model offers novel potential solutions to some of the riddles regarding the glomerular filter.
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