Increased mortality has been observed in patients who develop acute kidney injury (AKI) in the setting of coronavirus disease 2019 (COVID-19), which has led to the approval of extracorporeal kidney support by the FDA. We analyzed the existing literature to compare the efficacy and therapeutic benefits of various extracorporeal modalities for the oXiris membranes and CytoSorb cartridge in high-flow continuous kidney replacement therapy (HFCKRT). AKI due to COVID-19 is mediated by a state of systemic inflammation (cytokine storm syndrome), leading to multiple organ dysfunction. Although there is no consensus on a protocol for providing kidney support therapy, clinically oriented studies have shown the capacities of oXiris and CytoSorb filters to effectively filter out pro-inflammatory components, leading to improved clinical outcomes in critically ill patients. In this review, we study the development of cytokine storm syndrome, important clinical evidence regarding the roles of various adsorption techniques in kidney support therapy in this setting, and a protocol influenced by FDA recommendations for oXiris and CytoSorb membranes.

Exploration into the causes of hereditary renal cystic diseases demonstrates a deep-rooted connection with the proteomic components of the cellular organelle cilia. Cilia are essential to the signaling cascades, and their dysfunction has been tied to a range of renal cystic diseases initiating with studies on the oak ridge polycystic kidney (ORPK) mouse model. Here, we delve into renal cystic pathologies that have been tied with ciliary proteosome and highlight the genetics associated with each. The pathologies are grouped based on the mode of inheritance, where inherited causes that result in cystic kidney disease phenotypes include autosomal dominant and autosomal recessive polycystic kidney disease, nephronophthisis (Bardet–Biedl syndrome and Joubert Syndrome), and autosomal dominant tubulointerstitial kidney disease. Alternatively, phakomatoses-, also known as neurocutaneous syndromes, associated cystic kidney diseases include tuberous sclerosis (TS) and Von Hippel–Lindau (VHL) disease. Additionally, we group the pathologies by the mode of inheritance to discuss variations in recommendations for genetic testing for biological relatives of a diagnosed individual.

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