Neonatal rats refer to rats that are in the early stages of life, typically within the first few days or weeks after birth. Research involving neonatal rats often focuses on studying the development and function of various physiological systems, including the nervous system, cardiovascular system, and immune system. These studies can provide valuable insights into the processes that occur during early development and how disruptions or abnormalities in these processes may lead to disease or dysfunction later in life. Additionally, neonatal rats are commonly used as models for studying a wide range of health conditions and diseases, such as neurodevelopmental disorders, cardiovascular diseases, and metabolic disorders. By using neonatal rats as research subjects, scientists can better understand the underlying mechanisms of these conditions and develop potential therapies or interventions to improve outcomes.