Tag: Oxidative Stress

In Aging Cell, researchers have described the way that antioxidants work against senescence in muscle cells by altering mTOR signaling. Senescent cells don't sense nutrients properly Deregulated Nutrient SensingThe four pathways of nutrient-sensing regulate metabolism and influence aging. The four associated key protein groups are IGF-1, mTOR, sirtuins, and AMPK. We call these proteins “nutrient-sensing”...

Researchers have outlined a key receptor and protein involved in the formation of cataracts, paving the way for potential treatments targeting them. Oxidative stress and cataracts are closely related Cataracts, which cloud the lenses of the eye, are one of the most common sources of age-related vision loss [1]. While they are treatable through surgery...

A group of researchers, including Matthew O'Connor of Cyclarity Therapeutics, has published a review detailing what effects 7-ketocholesterol (7KC) has in the human body. An oxidized cholesterol 7KC, an oxidized cholesterol (oxysterol) gets its name from being oxidized at the C7 position within the cholesterol molecule [1]. This compound is formed by non-enzymatic processes driven...

Scientists have discovered that directly reducing the production of reactive oxygen species (ROS) at their source in astrocytes, mitochondrial complex III, improves neuronal health and significantly increases lifespan in a mouse model of Alzheimer’s [1]. Dangerous species Reactive oxygen species (ROS) are short-lived, highly reactive oxygen-containing molecules such as superoxide and hydrogen peroxide that are...

Researchers have discovered that infrared lasers promote the clearance of toxic metabolites from the brains of age-accelerated mice by improving lymphatic drainage. Gunking up the works Advanced glycation end-products (AGEs), like their acronym suggests, accumulate with age. These substances, which are formed when sugars bind to other molecules without the assistance of enzymes, drive multiple...

Scientists have given three types of beer to artificially aged male mice and recorded numerous beneficial effects, including improvements in microbiome diversity and lipid profiles [1]. Can alcohol be healthy? While it is firmly established that excessive alcohol consumption negatively impacts health, debates around moderate consumption are still ongoing. Some researchers suggest that the healthy...