Oxidative stress is the major pillar of the theory of aging. As a joke, I often say in my classes that we get old because we have the bad habit of spending our whole life breathing oxygen. B… Read More
Myoglobin is a cytoplasmic hemoprotein composed by a single polypeptide chain of 154 amino acids. It is expressed solely in cardiac myocytes and oxidative skeletal muscle fibers. Myoglobin… Read More
During cellular respiration, electrons are transferred from NADH or FADH2, along 4 protein complexes in the inner mitochondrial membrane, to an O2 molecule (read more about this subject here… Read More
Insulin is a polypeptide hormone produced, stored and secreted in Beta cells of the islets of Langerhans, in the pancreas (in a histological section it is seen that they occupy the central p… Read More
Oxidative stress results primarily from an imbalance between molecules potentially dangerous to our cells, the so-called reactive oxygen species, and molecules that protect the oxidative int… Read More
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