PURPOSE: We assessed whether the infusion of Coenzyme Q10-loaded liposomes (CoQ10-L) in rabbits with an experimental myocardial infarction can result in increased intracellular delivery of CoQ10 and thus limit the fraction of the irreversibly damaged myocardium. METHODS: CoQ10-L, empty liposomes (EL), or Krebs-Henseleit (KH) buffer were administered by intracoronary infusion, followed by 30 min of occlusion and 3 h of reperfusion. Unisperse Blue dye was used to demarcate the net size of the occlusion-induced ischemic zone ("area at risk") while nitroblue tetrazolium staining was used to detect the final fraction of the irreversibly damaged myocardium within the total area at risk. RESULTS: The total size of the area at risk in all experimental animals was approx. 20% wt. of the left ventricle (LV). The final irreversible damage in CoQ10-L-treated animals was only ca. 30% of the total area at risk as compared with ca. 60% in the group treated with EL (p < 0.006) and ca. 70% in the KH buffer-treated group (p < 0.001). CONCLUSIONS: CoQ10-L effectively protected the ischemic heart muscle by enhancing the intracellular delivery of CoQ10 in hypoxic cardiocytes in rabbits with an experimental myocardial infarction as evidenced by a significantly decreased fraction of the irreversibly damaged heart within the total area at risk. CoQ10-L may provide an effective exogenous source of the CoQ10 in vivo to protect ischemic cells.
PURPOSE: We assessed whether the infusion of Coenzyme Q10-loaded liposomes (CoQ10-L) in rabbits with an experimental myocardial infarction can result in increased intracellular delivery of CoQ10 and thus limit the fraction of the irreversibly damaged myocardium. METHODS: CoQ10-L, empty liposomes (EL), or Krebs-Henseleit (KH) buffer were administered by intracoronary infusion, followed by 30 min of occlusion and 3 h of reperfusion. Unisperse Blue dye was used to demarcate the net size of the occlusion-induced ischemic zone ("area at risk") while nitroblue tetrazolium staining was used to detect the final fraction of the irreversibly damaged myocardium within the total area at risk. RESULTS: The total size of the area at risk in all experimental animals was approx. 20% wt. of the left ventricle (LV). The final irreversible damage in CoQ10-L-treated animals was only ca. 30% of the total area at risk as compared with ca. 60% in the group treated with EL (p < 0.006) and ca. 70% in the KH buffer-treated group (p < 0.001). CONCLUSIONS: CoQ10-L effectively protected the ischemic heart muscle by enhancing the intracellular delivery of CoQ10 in hypoxic cardiocytes in rabbits with an experimental myocardial infarction as evidenced by a significantly decreased fraction of the irreversibly damaged heart within the total area at risk. CoQ10-L may provide an effective exogenous source of the CoQ10 in vivo to protect ischemic cells.
Authors: Daya D Verma; William C Hartner; Tatayana S Levchenko; Eugene A Bernstein; Vladimir P Torchilin Journal: Pharm Res Date: 2005-11-05 Impact factor: 4.200
Authors: F Yamamoto; H Yamamoto; S Yoshida; H Ichikawa; A Takahashi; K Tanaka; Y Kosakai; T Yagihara; T Fujita Journal: Cardiovasc Drugs Ther Date: 1991-03 Impact factor: 3.727
Authors: Mohammad Javad Hajipour; Mehdi Mehrani; Seyed Hesameddin Abbasi; Ahmad Amin; Seyed Ebrahim Kassaian; Jessica C Garbern; Giulio Caracciolo; Steven Zanganeh; Mitra Chitsazan; Haniyeh Aghaverdi; Seyed Mehdi Kamali Shahri; Aliakbar Ashkarran; Mohammad Raoufi; Holly Bauser-Heaton; Jianyi Zhang; Jochen D Muehlschlegel; Anna Moore; Richard T Lee; Joseph C Wu; Vahid Serpooshan; Morteza Mahmoudi Journal: Chem Rev Date: 2019-09-06 Impact factor: 60.622
Authors: Tessa Geelen; Sin Yuin Yeo; Leonie E M Paulis; Lucas W E Starmans; Klaas Nicolay; Gustav J Strijkers Journal: J Nanobiotechnology Date: 2012-08-28 Impact factor: 10.435