Atrial Function 8 Myocardial Contraction 8 Animal 6 Immunoglobulin G 6 Mice 6 Mice, Inbred BALB C 6 Support, Non-U.S. Gov't 6 heart 6 inotropism 6 mouse 6 nonhuman 6 Heart Atrium 4 Lymphocytes 4 Receptors, Adrenergic, beta 4 T-Lymphocytes 4 Thromboxane B2 4 acetylsalicylic acid 4 animal cell 4 animal experiment 4 beta adrenergic receptor 4 heart atrium 4 heart muscle 4 heart muscle contractility 4 immunoglobulin g 4 indometacin 4 priority journal 4 4 oxyprenolol 2 Alloimmunization 2 Animals 2 Arachidonic acid metabolites 2