Mitochondrial Dysfunction, Metabolic Syndrome and the Pathogenesis of Metabolic Diseases

Mitochondria, the powerhouses of the human cell play a crucial role in the production of adenosine triphosphate (ATP), the universal chemical energy that drives all physiological processes in the body. Thus, it stands to reason that mitochondrial dysfunction resulting in decreased ATP production, increased reactive oxygen speciesReactive oxygen species (ROS) generation, and disrupted mitochondrial dynamics can manifest in various diseases. Mitochondrial dysfunction has emerged as an important contributor to the development and progression of metabolic diseases, including liver malfunction, obesity, type 2 diabetes, neurological abnormalities, and cardiovascular disordersCardiovascular disorders. These dysfunctions disrupt cellular metabolism, leading to metabolic imbalances and the subsequent onset of diseases. The impairment of fatty acid oxidation in the mitochondria leads to an excessive accumulation of lipids in tissues, such as the liver, muscle, and pancreas, contributing to insulin resistance, dyslipidemiaDyslipidemia, and hepatic steatosisHepatic steatosis. This dyslipidemiaDyslipidemia can be further compounded by metal imbalance resulting in the disruption of the tricarboxylic acidTricarboxylic acid cycle and oxidation phosphorylation, events conducive to lipogenesis and obesity. Mitochondrial dysfunction enhances the production of ROS distressing the redox balance and promoting cancers and inflammation. Targeting mitochondrial biogenesisMitochondrial biogenesis, enhancing antioxidant defenses, and promoting mitochondrial metabolic networks may provide therapeutic strategies to these diseases. Hence, mitochondrial metabolism is central to a healthy outcome and its proper functioning is crucial to fend off diseases.