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Rationale and practical techniques for mouse models of early vein graft adaptations  Peng Yu, MD, Binh T. Nguyen, MD, Ming Tao, MD, Christina Campagna,

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Presentation on theme: "Rationale and practical techniques for mouse models of early vein graft adaptations  Peng Yu, MD, Binh T. Nguyen, MD, Ming Tao, MD, Christina Campagna,"— Presentation transcript:

1 Rationale and practical techniques for mouse models of early vein graft adaptations 
Peng Yu, MD, Binh T. Nguyen, MD, Ming Tao, MD, Christina Campagna, BS, C. Keith Ozaki, MD  Journal of Vascular Surgery  Volume 52, Issue 2, Pages (August 2010) DOI: /j.jvs Copyright © 2010 Society for Vascular Surgery Terms and Conditions

2 Fig 1 Cuff-technique mouse vein graft model. A, An example of a rodent survival operating suite with operating microscope and table-top small animal anesthesia system. B, Schematic representation of the cuff-technique vein bypass graft model. C, Two everted and secured carotid artery ends. D, Completed mouse carotid interposition vein graft. E, Hand-made polyetheretherketone anastomotic cuff with handle. Journal of Vascular Surgery  , DOI: ( /j.jvs ) Copyright © 2010 Society for Vascular Surgery Terms and Conditions

3 Fig 2 Mouse carotid artery anatomy and partial ligation methods (A, Photographed right carotid anatomy [cut surgical glove background]. B, Schematic representation). a, Right common carotid artery. b, Internal carotid artery. c, External carotid artery. d, Occipital artery. e, Superior thyroid artery. (1), Ligation of external carotid artery, including superior thyroid artery but not occipital artery. (2), Ligation of internal carotid artery. (3), Ligation of internal carotid artery plus occipital artery. Journal of Vascular Surgery  , DOI: ( /j.jvs ) Copyright © 2010 Society for Vascular Surgery Terms and Conditions

4 Fig 3 Masson trichrome staining (A-F) and α-actin immunohistochemistry staining (G, H) of cross-sections of mouse vein grafts/vein. Black arrows depict the internal elastic lamina (A-D, F-H); red arrows show the tunica adventitia/perivascular tissue boundary (A-D); and green arrows show the vasa vasorum (H). A, Normal flow vein graft at day 28. B, Vein graft with distal arterial partial (internal carotid + occipital artery) ligation at day 28. C, Vein graft with distal arterial partial (external carotid + internal carotid) ligation (leaving the occipital artery patent) at day 14. D, Negative wall remodeling in a mouse vein graft at day 28. E, Normal IVC. F, Enlarged area defined by the black box of Fig 3, E. G (normal IVC) and H (mouse vein graft at day 28), note some rose-red or brownish-red positive expression of α-actin in the tunica media (beyond the internal elastic lamina). Journal of Vascular Surgery  , DOI: ( /j.jvs ) Copyright © 2010 Society for Vascular Surgery Terms and Conditions

5 Fig 4 Masson trichrome staining of two longitudinally sectioned mouse vein grafts (cuff technique, cuffs were removed at ends, leading to artifact). Note variations in intimal thickness along the length of the graft. Journal of Vascular Surgery  , DOI: ( /j.jvs ) Copyright © 2010 Society for Vascular Surgery Terms and Conditions

6 Fig 5 Upper left: Duplex ultrasound scanning of mouse right carotid vein graft model (cuff technique), taken by Vevo 2100 Imaging System (VisualSonics Inc, Toronto, Canada). Red arrows show vein graft wall. Lower: Velocity of vein graft blood flow. Journal of Vascular Surgery  , DOI: ( /j.jvs ) Copyright © 2010 Society for Vascular Surgery Terms and Conditions

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