A collaborative US and Chinese study has found that the microbial communities present on our skin and in our mouths can predict your age, within a margin of several years. Additionally, they found a loss of key bacterial species in older participants, suggesting a potential anti-aging target.
A study published in Scientific Reports examined nearly 1,400 mother-child pairs from a multi-centre European birth cohort and found that childhood obesity was associated with shorter telomeres. Telomere length is a useful biomarker of biological ageing, as shorter telomeres are associated with a wide range of diseases. These encompass cancer, premature ageing, and obesity.
Alzheimer’s Disease is a devastating neurological condition affecting 24 million people worldwide. It is the most frequent form of dementia with a heritable risk that is not wholly understood. A study published in the Journal of Neuropathology & Experimental Neurology has identified a new risk gene that was previously overlooked.
Scientists are looking for models of ageing to help determine the causes of many age-related diseases. By using Labradors, the researchers from the University of California have demonstrated a new model for ageing that can be applied to other mammalian species and provide insights into our own genome.
In a major shake-up of the pharmaceutical market, Biogen announced that it intends to seek approval from the FDA for its Alzheimer’s drug aducanumab. This follows their earlier announcement that the two clinical trials evaluating the effectiveness of the drug in patients had been discontinued. However, Biogen state that data from additional patients in the […]
Reducing brain activity could extend human lifespan, new research shows. Although it is known that gene expression changes as people age, the mechanisms that extend human lifespan are not well understood. However, new research has revealed that differences in brain activity could be the reason some people live longer than others. Extended longevity in humans […]
The myth of the goldfish’s three second memory has long prevailed in popular culture. However, new research has suggested that unlike humans, fish are able to conserve memories over generations using epigenetic mechanisms. Epigenetic modifications can change the expression of DNA without changing the DNA code itself. Often this is in the form of DNA […]
Alzheimer’s has previously been understood to be caused by a build up of protein plaques in the brain. However, new research has revealed that alternative metabolic pathways in the brain may be more integral to the formation of the disease. The plaques are formed by proteins known as beta-amyloid and tau. As Alzheimer’s progresses the […]
Fruit flies with a certain genetic mutation have significantly longer lifespans and better resistance to stresses than flies without the mutation. Fruit flies share a significant proportion of their genes with humans, making them good models to study human diseases and ageing. As the fruit flies usually live for about two months their lifespan is […]
Cells discontinuing nucleotide synthesis could be a key factor in ageing, new research has revealed. Understanding this process could enable treatments that ensure healthier ageing. The process by which cells become unable to replicate after a certain number of divisions is known as senescence. As cell division is essential the body’s repair processes, senescence can […]
A gene discovery has explained why current Alzheimer’s drugs don’t work for lots of patients, and why so many new drugs fail in clinical trials. The acetylcholine receptor α7nAChR has long been a target of interest for Alzheimer’s drugs. The neurotransmitter acetylcholine is involved in memory and learning processes. Despite acetylcholine being linked to the […]
Scientists have found that RNA production is behind the regenerative affects of laser skincare treatments. Laser treatments are a widespread cosmetic procedure to make skin appear younger and healthier. The laser slightly damages the skin cells, forcing them to repair themselves. After the repair process, the skin looks younger, but until recently the mechanism to […]
A study has shown that you can reduce your risk of getting dementia by adapting a healthy lifestyle, regardless of your genetic pre-disposition. Genetic factors can increase a person’s likelihood of getting dementia, but until now it was not known if making lifestyle changes could reduce this risk. 196,383 individuals above 60 years of age […]
A gene has been identified in worms that improves their health, but not their lifespan, as they age. Maintaining quality of life is becoming a focus in healthcare for the elderly, as people that live to the same age do not necessarily have the same quality of life. Some maintain both their movement and cognitive […]
New research has indicated that a species’ lifespan can be predicted by the rate of telomere shortening but not by the initial telomere length, as previously thought. Telomeres are repetitive sequences of DNA nucleotides found at the end of chromosomes. They protect the chromosome from degradation during cell division. As species age, the length of […]