Melanoma is a particularly aggressive form of skin cancer.
Dlumen/iStock via Getty Images Plus
One enzyme plays a key role in how tumor cells replicate and divide indefinitely. Identifying the genes that give these cells their immortality could provide new drug targets to treat cancer.
Telomeres (red) at the ends of chromosomes protect your DNA from damage.
Thomas Ried/NCI Center for Cancer Research, National Cancer Institute, National Institutes of Health via Flickr
The protective caps at the ends of chromosomes naturally shorten over time. Researchers found that direct damage can prematurely trigger senescence and contribute to age-related diseases like cancer.
At a molecular level, stresses and strains can make your body clock break into a sprint.
Emerging evidence suggests that prolonged stress exposure can accelerate the ticking rate of an internal cellular clock. By doing so, stress can contribute to faster ageing and body deterioration.
A telomere age test kit from Telomere Diagnostics Inc. and saliva.
collection kit from 23andMe.
Genetic testing companies are offering tests that analyze the ends of your chromosomes – telomeres – to gauge your health and your real age. But is there scientific evidence to support such tests?
Are space twin Scott and Earth twin Mark no longer identical?
Before sending humans to Mars or the moon, scientists need to understand what long-term space living does to the human body. Now results are coming in from the Kelly brothers in the TWINS Study,
Bright sun and fatty foods are a bad recipe for your DNA.
Scientists have long thought that regions of DNA called telomeres control how long you live. We are now learning that it is your diet and lifestyle that shape your telomeres, not the other way around.
Telomeres on a chromosome.
Detailed images of the anti-ageing enzyme telomerase are a drug designer’s dream
At just 18 months old, young children can show biological evidence of added stress.
At less than 2 years old, children of mothers with increasing depressive symptoms can show signs of added stress and quicker cellular aging.
More Dollies, cloned from the same cell line.
Courtesy of Kevin Sinclair, University of Nottingham
It took years of attempts before scientists were able to clone a mammal from an adult cell. And with that success came plenty more questions.
Just thinking about death triggers odd behaviour, shows research.
It’s a myth that hair and nails continue to grow after you die. What else have science discovered about death?
You’d be in bad shape if your cells couldn’t fix DNA issues that arise.
Cells must repair the thousands of bits of DNA damage they incur every day. These cellular mechanisms fend off cancerous tumors, and cancer researchers are working to harness their power.
Use-by dates: human chromosomes with their telomeres highlighted.
Men who are unemployed for more than two years show signs of faster ageing in their DNA, according to a study published today in the journal PLOS ONE. Researchers at the University of Oulu, Finland and…
A biological marker in the immune system can predict a persons ability to fight the common cold, a new study has revealed…