Didn't another study show carnitine was good for the heart? Inflammatory Bowel Disease and Cardiovascular Disease: An Integrative Review With a Focus on the Gut Microbiome Cureus A is a cytoplasmic organelle that generates, through oxidative phosphorylation, molecules of ATP, a chemical used to store and generate energy for cellular functions, including proliferation. Neurons and muscle cells are Frontiers Myalgic Encephalomyelitis Chronic Fatigue Syndrome: the biology of a neglected disease