Rbp4 In Ageing
As we age, our bodies undergo numerous changes, and scientists are constantly working to understand the factors that contribute to these shifts. One such factor gaining attention is a protein called Retinol Binding Protein 4, or RBP4. This protein is primarily responsible for transporting vitamin A throughout the body.
Recent research indicates that the amount of RBP4 circulating in our blood tends to increase as we get older. This rise in RBP4 levels has been linked to a range of age-related conditions. For instance, it appears to play a role in sarcopenia, which is the age-related loss of muscle mass, and has been associated with elevated markers of neurodegeneration in the brain. It can also lead to an increase in thyroid-stimulating hormone (TSH) levels.
Furthermore, higher RBP4 levels in aging individuals are connected to the development of serious health issues like atherogenesis, a process where plaque builds up in the arteries, chronic kidney disease, and osteoarthritis, a common form of arthritis that causes joint pain and stiffness. These detrimental effects seem to be driven by several underlying mechanisms, including persistent low-grade inflammation, the body’s reduced ability to respond to insulin (insulin resistance), increased cellular damage from unstable molecules (oxidative stress), problems with the energy-producing parts of our cells (mitochondrial dysfunction), impaired cellular “housekeeping” processes (inhibition of autophagy), and an imbalance in gut bacteria (intestinal dysbiosis).
Understanding the role of this protein is crucial, as elevated levels in older individuals appear to contribute to and accelerate the deterioration of various organs and systems throughout the body.
Source: link to paper