Search results for genetics

“The existence of a fixed age limit for humans is an area of debate, with some scientists theorizing that biological processes like the shortening of telomeres are irreversible, determined by genetics, and a strong predictor of death.”

“CPT also reduced neuron loss, improved movement, learning, and memory, and extended lifespan in adult flies with a disease-associated tau mutation. A genetic method of inhibiting reverse electron transport produced similar behavioral and lifespan benefits.”

“Findings of a new investigation detail the relationship between healthy eating and epigenetic and biological age. While a person’s genetic code does not change over time, the pattern of epigenetic markers attached to DNA does change with age.”

“The first U.S. case was recently detected in a fully-vaccinated person living in California, and several other states are now reporting Omicron cases. The WHO has classified Omicron as a variant of concern. To be considered a variant, a virus must have sufficient mutations to change a portion of its genetic code.”

“A variant in the APOE gene, called apolipoprotein E4 (APOE4), is the major genetic risk factor for Alzheimer's disease. Having one APOE4 allele increases a person's Alzheimer's disease risk as much as threefold; carrying two APOE4 alleles increases risk as much as 15-fold.”

“Their investigation, which involved nearly 1,500 adults (65 years and older) who did not have dementia, examined whether red blood cell concentrations of DHA influenced the participants' Alzheimer's disease risk, especially those who carried the APOE4 gene, the primary genetic risk factor for the disease.”

“Because the trial had an exploratory approach, relied on genetic markers of bacteria rather than full genomic profiling and assessed nitric oxide only indirectly through nitrate and nitrite levels, further studies are needed to confirm these results.”

“Still, the pattern suggests that nutrient status may interact with genetic risk to shape brain aging. In Q&A #55, I discuss the effects of astaxanthin, lutein, and zeaxanthin on cardiovascular and brain health in more detail.”

“Because the age at which a female experiences menopause is heritable, they conducted a Mendelian randomization analysis to identify genetic links between age at menopause and epigenetic aging. They found that menopause markedly accelerated epigenetic aging.”

“It also activates some of the same genetic pathways as caloric restriction. The authors of this study defined intermittent fasting as 25 percent of the participants' usual dietary intake two days per week.”