Anatomy of the heart and blood vessels at the cellular level: new discoveries in cellular anatomy affecting the treatment of cardiovascular diseases

Аннотация

The article examines the latest advances in the study of the anatomy of the heart and blood vessels at the cellular level, as well as their impact on the treatment of cardiovascular diseases (CVD). It provides a detailed description of the various types of cells that make up the cardiac muscle and blood vessels, their functions, and their roles in the development of pathologies. Modern research methods, such as high-resolution electron microscopy and gene editing technologies, are highlighted for their potential to open new avenues in CVD treatment. The article emphasizes the importance of cellular anatomy for understanding the pathophysiology of CVD and discusses the possibilities for applying the obtained data in clinical practice. Keywords: Cardiovascular diseases (CVD), anatomy of the heart, cellular anatomy, cardiac myocytes, endothelial cells, gene editing, CRISPR/Cas9, research technologies, pathophysiology, myocardial regeneration. methods has identified several genes associated with Introduction: Cardiovascular diseases (CVD) remain an increased predisposition to heart diseases. one of the leading causes of mortality worldwide. Statistical Data on the Prevalence and Mortality of CVD: 2. Cellular Anatomy and Regeneration: Research in cardiac cellular anatomy shows that specialized 1. Prevalence: According to the World Health subtypes of cardiomyocytes have unique Organization (WHO) data from 2021, approximately characteristics affecting heart function and disease 523 million people worldwide suffer from development. Work on tissue engineering and cellular cardiovascular diseases. This number is rapidly therapy continues, aiming to restore damaged heart increasing each year due to factors such as an aging tissue (Gao et al., 2020; Jiang et al., 2023). population and declining lifestyle choices. 3. Influence of the Microbiome: Studies show 2. Mortality: In 2021, more than 17.9 million that the gut microbiome can significantly impact people died from CVD, accounting for about 32% of all cardiovascular health. Certain bacteria and their deaths globally. This makes CVD the leading cause of metabolites can have both protective and harmful death, surpassing cancer and other diseases. effects on the cardiovascular system. 3. Regional Variations: High mortality rates from 4. Technological Advancements: The CVD are observed in low- and middle-income countries, development of new imaging methods, such as 3D while high-income countries are experiencing a trend models of the heart and coronary vessels, provides toward reduced mortality due to advancements in more detailed insights into pathological changes and medical technology and lifestyle improvements. contributes to more precise treatments. Scientific Developments and News in the Study of CRISPR/Cas9 is a revolutionary gene-editing technology CVD: that allows scientists to make precise changes to the 1. Genomic Research: Recent studies indicate DNA of living organisms. It emerged from the study of that genetic markers can predict the risk of developing the adaptive immune system in bacteria, which use this CVD. Research using genome-wide association system to protect against viruses. American Journal Of Biomedical Science & Pharmaceutical Innovation 37 https://theusajournals.com/index.php/ajbspi American Journal of Applied Science and Technology (ISSN: 2771-2745) Key Components of CRISPR/Cas9: and prevention of these diseases. In recent years, research on cellular anatomy, molecular mechanisms, 1. CRISPR (Clustered Regularly Interspaced Short and the dynamics of heart and vessel cells has led to Palindromic Repeats) — These are segments of DNA significant discoveries. This article examines key that consist of arrays of repeating sequences, aspects of the anatomy of the heart and blood vessels interspersed with "spacers" — sequences obtained and their impact on clinical practice. from viral DNA. These spacers serve as "memories" for bacteria, allowing them to recognize viruses during The heart consists of three main layers: the epicardium, subsequent attacks. myocardium, and endocardium. The myocardium, or cardiac muscle, is the thickest layer and primarily 2. Cas9 — This is a nuclease protein capable of consists of cardiac myocytes, which have unique cutting double-stranded DNA. It works in conjunction properties enabling them to contract. Each cardiac cell with a molecule of RNA called gRNA (guide RNA), which contains specialized structures, such as intercalated directs Cas9 to the specific DNA sequence. discs, which ensure efficient transmission of electrical How It Works: signals and coordinated heart contractions (Zhou et al., 1. Designing gRNA: Researchers develop gRNA 2018). that is complementary to the target DNA they want to The heart contains several types of cells: alter. 1. Cardiac myocytes - responsible for the contraction of 2. Targeting DNA: gRNA binds to Cas9 and guides the heart. it to the desired area of DNA, where a cut occurs. 2. Pacemake