Matthew O'Connor

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Bone structure
A new study links STING-mediated signals from marrow fat cells to inflammation and declining NAD⁺ levels in bone-forming cells. Interrupting this pathway helped preserve aging bone [1]. Making old bones Our bones live a complex life, as they are constantly remodeled: cells called osteoclasts break down existing bone, while osteoblasts build new bone. Osteoblasts arise...
Mechanical cell
Reviewers publishing in Biology have elucidated SIRT1 functional reserve as an aspect of aging, describing how its depletion is an upstream cause of age-related disorders at the cellular level and explaining why many prospective therapies that increase SIRT1 and NAD+ have not had promising results. Managing a dangerous byproduct Reactive oxygen species (ROS) are necessarily...
Proteins in the brain
A recent analysis of serum protein changes identified 16 proteins related to inflammatory, synaptic, metabolic, and Alzheimer’s disease processes whose levels change during the menopausal transition [1]. These changes were linked to cognitive health later in life. The time for interventions Menopause is mostly known as a stage that marks the end of female reproduction,...
Vegan buffet
A human trial found that even without caloric restriction, a low-fat, plant-based diet improved blood sugar control, reduced liver fat, and lowered the quantity of advanced glycation end products (AGEs) in the skin [1]. An all-you-can-eat vegan buffet Type 2 diabetes is an age-related metabolic disorder in which the body becomes less able to regulate...
Inflamed lower back discs
In Aging Cell, a team of researchers has described how a little-known gene, ZNF865, has a significant influence on back pain through the regulation of cellular senescence. Lower back pain and senescence are related Cellular SenescenceAs your body ages, more of your cells become senescent. Senescent cells do not divide or support the tissues of...
Gut bacteria
A new study highlights a fatty acid produced by a particular genus of bacteria as a “natural statin,” suggesting a new way of treating atherosclerosis [1]. Bacteria and cholesterol Atherosclerosis develops when cholesterol-rich particles accumulate in arterial walls, driving inflammation and plaque buildup. The liver helps mitigate this process by removing low-density lipoprotein (LDL), which...