443 - EFFECTS OF METOPROLOL ON REMODELING AND SPONTANEOUS DIASTOLIC CONTRACTILE ACTIVITY OF MYOCARDIUM IN RATS WITH CONGESTIVE HEART FAILURE FOLLOWING A LARGE INFARCTION
M Obayashi, B Stuyvers, HE ter Keurs
Calgary, Alberta

444 - NATURAL TIME COURSE OF REPAIR AND REGENERATION AFTER MYOCARDIAL INFARCTION IN A CHIMERIC MOUSE MODEL
RR Lowe, GE Pate, L Bohunek, PM Fong, H Walinski, H Heine, E Martinez, TJ Podor, JN Hamburger
Vancouver, British Columbia

445 - ASSESSMENT OF MOLECULAR DIAGNOSTIC STRATEGIES FOR THE IDENTIFICATION OF GENETIC DEFECTS IN HYPERTROPHIC CARDIOMYOPATHY
A Woo, A Khan, H Rakowski, M Yazdanpanah , R Hayeems, S Horsburgh, ED Wigle, K Fedwick, K Siminovitch
Toronto, Ontario

446 - S100B EXPRESSION MODULATES LEFT VENTRICULAR HYPERTROPHY AND APOPTOSIS FOLLOWING PRESSURE-OVERLOAD IN MICE
JN Tsoporis, A Marks, F Dawood, PP Liu, TG Parker
Toronto, Ontario

447 - MECHANISMS UNDERLYING CA²⁺ WAVES AND TRIGGERED PROPAGATED CONTRACTIONS IN NON-UNIFORM EXCITATION-CONTRACTION COUPLING: EFFECT OF TRANSIENT STRETCH
Y Sugai, BD Stuyvers, HE ter Keurs
Calgary, Alberta

448 - ACTIVATION OF MAP KINASE SIGNALING PATHWAYS AND APOPTOSIS DUE TO DOXORUBICIN IS MEDIATED BY OXIDATIVE STRESS
H Lou, PK Singal
Winnipeg, Manitoba

449 - N-ACETYLCYSTEINE IMPROVES CARDIOVASCULAR DEPRESSION IN ACUTE DIABETES
PR Nagareddy, Z Xia, K MacLeod, JH McNeill
Vancouver, British Columbia