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Tag: Reactive oxygen species

March 11, 2020
A new mouse study has found that injecting healthy mitochondria from young mice into older mice improves learning and memory, skeletal muscle function, and immune system activity [1]. The Aging Mitochondria Mitochondria are incredibly important components of our cells, as they produce energy in the form of ATP, the "molecular unit of currency" of intracellular...
August 29, 2018
In a new study, researchers have identified a direct link between mitophagy and inflammation. Aging is accompanied by rising levels of oxidative stress, which is primarily caused by our cellular power plants, the mitochondria. As we age, our mitochondria start to produce an increasing amount of oxidized molecules known as reactive oxygen species (ROS), which...
April 15, 2018
The mitochondria are the powerhouses of the cell, producing ATP, a kind of universal energy used in cellular functions. Mitochondrial dysfunction is an important part of the aging process. As cells age, the effectiveness of the respiratory chain diminishes, increasing electron leakage and reducing ATP generation [1]. As mitochondria become more dysfunctional with age, there...
March 21, 2018
One of the proposed mechanisms driving the aging process is an increase with age of so-called reactive oxygen species (ROS), also known as free radicals. These chemical species contain unpaired electrons in the outermost orbitals of some of their atoms, which makes them extremely reactive as they attempt to snatch electrons from other atoms to...