Section 1: Dr. E. Angela Murphy (Exercise, Nutrition and Immunity)
Dr. Murphy’s current research focuses on 1) understanding how exercise stress affects immune functions and 2) understanding whether the use of proper nutrition can ameliorate the immune suppression caused by exercise stress. The overall goal of Dr. Murphy’s lecture was for students to gain an understanding of how exercise stress affects immune function, the mechanisms for these effects, and the benefits of proper nutrition on immune function following exercise stress.
During the presentation, Dr. Murphy discussed two studies focused on elucidating the effect of cells of the immune system, including macrophages and Interleukin-6 (IL-6), on susceptibility to viruses. One study …show more content…
Carson’s lecture was to provide scientific evidence for the effect of endocrine hormones on the regulation of muscle mass. Muscle loss is often the result of chronic illnesses, including COPD, heart failure, kidney disease, and cancer. These changes are often marked by anorexia, inflammation, insulin resistance, hypogonadism, and anemia, which cause muscle and fat loss. Ultimately, multiple endocrine hormones have an effect on the regulation of muscle mass, including insulin, growth hormone, IGF-1, and …show more content…
One study focused on understanding the effect of insulin on muscle protein synthesis using young volunteers. Participants completed resistance exercise under multiple conditions (i.e. 12 hour fast, exercise + amino acids, exercise + amino acids +glucose, etc.) and measures of protein synthesis and breakdown were subsequently measured. Protein synthesis was enhanced and protein breakdown suppressed in all conditions including amino acids and/or glucose. However, protein breakdown was greater than protein synthesis during a 12-hour fast at rest and after exercise (i.e. without consumption of a meal). These results provide evidence for the importance of when an individual eats, which subsequently determines whether exercise stimulates protein synthesis or
Dr. Murphy’s current research focuses on 1) understanding how exercise stress affects immune functions and 2) understanding whether the use of proper nutrition can ameliorate the immune suppression caused by exercise stress. The overall goal of Dr. Murphy’s lecture was for students to gain an understanding of how exercise stress affects immune function, the mechanisms for these effects, and the benefits of proper nutrition on immune function following exercise stress.
During the presentation, Dr. Murphy discussed two studies focused on elucidating the effect of cells of the immune system, including macrophages and Interleukin-6 (IL-6), on susceptibility to viruses. One study …show more content…
Carson’s lecture was to provide scientific evidence for the effect of endocrine hormones on the regulation of muscle mass. Muscle loss is often the result of chronic illnesses, including COPD, heart failure, kidney disease, and cancer. These changes are often marked by anorexia, inflammation, insulin resistance, hypogonadism, and anemia, which cause muscle and fat loss. Ultimately, multiple endocrine hormones have an effect on the regulation of muscle mass, including insulin, growth hormone, IGF-1, and …show more content…
One study focused on understanding the effect of insulin on muscle protein synthesis using young volunteers. Participants completed resistance exercise under multiple conditions (i.e. 12 hour fast, exercise + amino acids, exercise + amino acids +glucose, etc.) and measures of protein synthesis and breakdown were subsequently measured. Protein synthesis was enhanced and protein breakdown suppressed in all conditions including amino acids and/or glucose. However, protein breakdown was greater than protein synthesis during a 12-hour fast at rest and after exercise (i.e. without consumption of a meal). These results provide evidence for the importance of when an individual eats, which subsequently determines whether exercise stimulates protein synthesis or