title: Impact of Indoxyl Sulfate on Progenitor Cell-Related Neovascularization of Peripheral Arterial Disease and Post-Angioplasty Thrombosis of Dialysis Vascular Access.
abstract: Patients with chronic kidney disease (CKD) have an increased risk of vascular disease, which is associated with considerable health care costs. Vascular disease in CKD differs clinically and pathobiologically from that in patients with normal renal function. Besides the traditional risk factors, retention of uremic toxins contributes to the pathogenesis of vascular disease in patients with CKD. Indoxyl sulfate is a protein-bound uremic toxin and is inefficiently removed by conventional dialysis. Accumulating evidence suggests that indoxyl sulfate is a vascular toxin involved in atherosclerosis, arteriosclerosis, vascular calcification and vascular repair. Clinically, indoxyl sulfate is associated with total and cardiovascular mortality in patients with CKD. Recent studies have indicated that in addition to coronary and cerebral arteries, indoxyl sulfate plays a role in peripheral artery disease (PAD) and dialysis graft thrombosis. Emerging evidence suggests that indoxyl sulfate is implicated via novel mechanisms, including progenitor cell-related neovascularization and tissue factor-related hypercoagulability. These findings raise the possibility that strategies targeting serum indoxyl sulfate may have the potential to improve the outcomes of PAD and dialysis vascular access in patients with CKD.
authors.affiliation: Cardiovascular Center, National Taiwan University Hospital, Hsinchu Branch, Hsinchu 30059, Taiwan. chihchengwumd@gmail.com.|National Tsing-Hua University, Institute of Biomedical Engineering, Hsinchu 30013, Taiwan. chihchengwumd@gmail.com.|School of Medicine, National Yang-Ming University, Taipei 11217, Taiwan. chihchengwumd@gmail.com.
authors.forename: Chih-Cheng
authors.initials: CC
authors.lastname: Wu
authors.affiliation: Division of Nephrology, Taipei Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation and School of Medicine, Tzu Chi University, Hualien 97004, Taiwan. szuchun.hung@gmail.com.
authors.forename: Szu-Chun
authors.initials: SC
authors.lastname: Hung
authors.affiliation: Division of Nephrology, Taipei Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation and School of Medicine, Tzu Chi University, Hualien 97004, Taiwan. kolinkuo8@gmail.com.
authors.forename: Ko-Lin
authors.initials: KL
authors.lastname: Kuo
authors.affiliation: Institutes of Physiology and Clinical Medicine, National Yang-Ming University, Taipei 11217, Taiwan. dctarng@vghtpe.gov.tw.|Division of Nephrology, Department of Medicine, Taipei Veterans General Hospital, Taipei 11217, Taiwan. dctarng@vghtpe.gov.tw.
authors.forename: Der-Cherng
authors.initials: DC
authors.lastname: Tarng
mesh_terms: D017130:Angioplasty / Q000009:adverse effects*; D000818:Animals; D001777:Blood Coagulation; D019917:Blood Vessel Prosthesis Implantation / Q000009:adverse effects*; D066026:Endothelial Progenitor Cells / Q000378:metabolism* / Q000473:pathology; D006083:Graft Occlusion, Vascular / Q000209:etiology / Q000378:metabolism / Q000473:pathology / Q000628:therapy*; D006801:Humans; D007200:Indican / Q000378:metabolism*; D009389:Neovascularization, Pathologic; D058729:Peripheral Arterial Disease / Q000378:metabolism* / Q000473:pathology / Q000628:therapy; D011379:Prognosis; D006435:Renal Dialysis; D051436:Renal Insufficiency, Chronic / Q000378:metabolism / Q000473:pathology / Q000628:therapy*; D012307:Risk Factors; D013927:Thrombosis / Q000209:etiology / Q000378:metabolism* / Q000473:pathology / Q000628:therapy
chemical_list: D007200:Indican
keywords: chronic kidney disease; dialysis vascular access; indoxyl sulfate; peripheral artery disease; thrombosis; uremic toxin