Keywords: Apoptosis; Fluoride; Heart; Myofibrillar lysis; Necrosis; Serum; AST; Aspartate aminotransaminase; Bax; Bcl-2, associated X protein, an apoptosis promoter; Bcl-2; B-cell lymphoma 2, an apoptosis inhibitor; CAT; Catalase; CK-MB; Creatinine kinase-MB; cTnI;