Patient's question:
What is the current status of the development of histology and embryology?Doctor's answer:
Hello, due to the increasing incidence of heart diseases, research on the heart has permeated various fields of life sciences. However, studies on the anatomy and histology of the heart are relatively limited. This discipline employs methods such as histology, histochemistry, immunohistochemistry, electron microscopy, cytochemistry, genetics, and molecular biology to comprehensively explore the morphological basis of the pathogenesis of cardiovascular diseases. It has systematically studied the fine structure of the hearts of rabbits, mice, domestic pigs, sheep, guinea pigs, monkeys, fetuses, and adults, with a particular emphasis on in-depth, comprehensive, and detailed research on the cardiac conduction system. Many new discoveries have been made in morphology, and numerous new theories have been proposed, such as accessory atrioventricular nodes, P cell-like cell clusters, and P cells within atrial muscle. The theory that "atrial ectopic beats are related to the potential pacemaker (P) cells in myocardium" has been proposed, laying a morphological foundation for the pathogenesis of arrhythmias. These findings and theories have attracted attention from physiology and clinical medicine. Regarding the relationship between atrial fibrillation and cell apoptosis, the view that "myocardial apoptosis is a result rather than a cause of atrial fibrillation" has been proposed. Additionally, comprehensive research has been conducted on the development of the heart, the expression of connexins and adhesion molecules in myocardial cells, and the destruction of myocardial collagen fibers caused by myocardial ischemia. This research direction has a history of 15 years, with over 120 articles published on the heart from various perspectives. The results have provided substantial morphological evidence and theoretical references for coronary heart disease, congenital heart disease, cardiac development, electrophysiology, cardiac metabolism, and arrhythmias. The author has edited the book "Cardiac Histology."