biology

DNA helped crack 1983 rape case

A Florida woman who woke up to a stranger sexually assaulting her 36 years ago may finally get justice after DNA helped crack the brutal rape case.

LA police officer accused of 2 rapes in past 4 years

A Los Angeles police officer has been arrested on suspicion of committing two rapes over the past four years -- the oldest of which was linked to him through DNA records while he was being investigated in the other case, prosecutors say.

Lifestyle can lower dementia risk, study says

A good diet and ample exercise don't just help your waistline. Healthy lifestyle factors may also help lower your risk of dementia, even if you have a higher genetic risk, according to a study published Sunday in the medical journal JAMA.

Mini-brains grown from stem cells show ‘complex' neural activity

Floating disembodied conscious brains that issue commands to luckless human minions may be a cliché of science fiction, but they are a far cry from the primitive, lab-grown "cerebral organoids" that real scientists study today. New research suggests that contemporary mini-brains -- even if inferior to their fictional counterparts -- are still capable of a surprise or two.

CRISPR gene-edited babies may be at increased risk of early death

Our genomes contain two copies of the CCR5 gene. It is known that people who carry two defective copies of this gene are highly resistant to HIV. But this double mutation of the CCR5 gene, which a Chinese scientist intentionally edited into human embryos last year, is also associated with a 21% increased risk of dying early, a new study showed.

Genetically modified virus saves teen's life

Isabelle Carnell-Holdaway, 17, has faced not one but two unrelenting threats to her life. Diagnosed at 11 months of age with cystic fibrosis, the progressive genetic disease that causes lung infections and breathing impairment, Isabelle has also combated an on-again, off-again infection caused by antibiotic-resistant bacteria since age 8.