PMID- 32396897 OWN - NLM STAT- MEDLINE DCOM- 20200914 LR - 20210514 IS - 1423-0135 (Electronic) IS - 1018-1172 (Print) IS - 1018-1172 (Linking) VI - 57 IP - 4 DP - 2020 TI - A Novel Model of Balloon Angioplasty Injury in Rat Arteriovenous Fistula. PG - 223-235 LID - 10.1159/000507080 [doi] AB - BACKGROUND: There are very few animal models of balloon angioplasty injury in arteriovenous fistula (AVF), hindering insight into the pathophysiologic processes following angioplasty in AVF. The objective of the study was to develop and characterize a rat model of AVF angioplasty injury. METHODS: Balloon angioplasty in 12- to 16-week-old Sprague-Dawley rats was performed at the arteriovenous anastomosis 14 days post-AVF creation with a 2F Fogarty balloon catheter. Morphometry and protein expression of endothelial nitric oxide synthase (eNOS), monocyte-chemoattractant protein-1 (MCP-1), alpha-smooth muscle actin (alpha-SMA), CD68 (macrophage marker), and collagen expression in AVFs with and without angioplasty were assessed. RESULTS: In AVFs with angioplasty versus without angioplasty: (1) angioplasty increased AVF-vein and artery intimal hyperplasia, (2) angioplasty decreased eNOS protein expression in AVF-vein and artery at 21 days post-AVF creation and remained decreased in the AVF-vein angioplasty group at 35 days, (3) angioplasty increased AVF-vein and artery alpha-SMA expression within the intimal region at 35 days, (4) angioplasty increased the expression of AVF-vein MCP-1 at 21 days and CD68 at 21 and 35 days, and (5) angioplasty increased AVF-vein and artery collagen expression at 35 days. CONCLUSION: Our findings describe a reproducible rat model to better understand the pathophysiologic mechanisms that ensue following AVF angioplasty. CI - (c) 2020 S. Karger AG, Basel. FAU - Somarathna, Maheshika AU - Somarathna M AD - Department of Medicine and Division of Nephrology, Division of Nephrology, Department of Medicine, University of Alabama at Birmingham, Birmingham, Alabama, USA. FAU - Isayeva-Waldrop, Tatyana AU - Isayeva-Waldrop T AD - Department of Medicine and Division of Nephrology, Division of Nephrology, Department of Medicine, University of Alabama at Birmingham, Birmingham, Alabama, USA. FAU - Al-Balas, Alian AU - Al-Balas A AD - Department of Medicine and Division of Nephrology, Division of Nephrology, Department of Medicine, University of Alabama at Birmingham, Birmingham, Alabama, USA. FAU - Guo, Lingling AU - Guo L AD - Department of Medicine and Division of Nephrology, Division of Nephrology, Department of Medicine, University of Alabama at Birmingham, Birmingham, Alabama, USA. FAU - Lee, Timmy AU - Lee T AD - Department of Medicine and Division of Nephrology, Division of Nephrology, Department of Medicine, University of Alabama at Birmingham, Birmingham, Alabama, USA, txlee@uab.edu. AD - Veterans Affairs Medical Center, Section of Nephrology, Birmingham, Alabama, USA, txlee@uab.edu. LA - eng GR - R44 DK109789/DK/NIDDK NIH HHS/United States GR - T32 DK116672/DK/NIDDK NIH HHS/United States GR - P30 DK079337/DK/NIDDK NIH HHS/United States GR - I01 BX003387/BX/BLRD VA/United States GR - R01 HL139692/HL/NHLBI NIH HHS/United States PT - Journal Article PT - Research Support, N.I.H., Extramural PT - Research Support, U.S. Gov't, Non-P.H.S. DEP - 20200512 PL - Switzerland TA - J Vasc Res JT - Journal of vascular research JID - 9206092 RN - 0 (Actins) RN - 0 (Antigens, CD) RN - 0 (Antigens, Differentiation, Myelomonocytic) RN - 0 (CD68 protein, rat) RN - 0 (Ccl2 protein, rat) RN - 0 (Chemokine CCL2) RN - 0 (smooth muscle actin, rat) RN - 9007-34-5 (Collagen) RN - EC 1.14.13.39 (Nitric Oxide Synthase Type III) RN - EC 1.14.13.39 (Nos3 protein, rat) SB - IM MH - Actins/metabolism MH - *Angioplasty, Balloon MH - Animals MH - Antigens, CD/metabolism MH - Antigens, Differentiation, Myelomonocytic/metabolism MH - *Arteriovenous Shunt, Surgical MH - Chemokine CCL2/metabolism MH - Collagen/metabolism MH - Disease Models, Animal MH - Femoral Artery/*injuries/metabolism/pathology/surgery MH - Femoral Vein/*injuries/metabolism/pathology/surgery MH - Male MH - Neointima MH - Nitric Oxide Synthase Type III/metabolism MH - Rats, Sprague-Dawley MH - Time Factors MH - *Vascular Remodeling MH - Vascular System Injuries/*etiology/metabolism/pathology PMC - PMC7381362 MID - NIHMS1580794 OTO - NOTNLM OT - Angioplasty OT - Arteriovenous fistula OT - Intimal hyperplasia EDAT- 2020/05/13 06:00 MHDA- 2020/09/15 06:00 PMCR- 2021/05/12 CRDT- 2020/05/13 06:00 PHST- 2019/05/20 00:00 [received] PHST- 2020/03/09 00:00 [accepted] PHST- 2020/05/13 06:00 [pubmed] PHST- 2020/09/15 06:00 [medline] PHST- 2020/05/13 06:00 [entrez] PHST- 2021/05/12 00:00 [pmc-release] AID - 000507080 [pii] AID - 10.1159/000507080 [doi] PST - ppublish SO - J Vasc Res. 2020;57(4):223-235. doi: 10.1159/000507080. Epub 2020 May 12.