Medical research

Zinc deficiency mechanism linked to aging, multiple diseases

(Medical Xpress)—A new study has outlined for the first time a biological mechanism by which zinc deficiency can develop with age, leading to a decline of the immune system and increased inflammation associated with many ...

Oncology & Cancer

Scientists show how BRCA1 cancer gene mutations harm breast cells

(Medical Xpress) -- Working with human breast cells, researchers at the Johns Hopkins Kimmel Cancer Center have shown how the inactivation of a single copy of the breast cancer gene BRCA1 leaves breast cells vulnerable to ...

Medical research

Low-dose X-ray exposure does not harm human stem cells

Biophysicists have shown that following low-dose exposure to X-rays (at 80 milligrays), stem cells remain healthy, proliferate, and do not accumulate DNA damage to be passed on to their progeny. The paper was published in ...

Genetics

Scientists link rapid brain growth in autism to DNA damage

Researchers at the Salk Institute have discovered a unique pattern of DNA damage that arises in brain cells derived from individuals with a macrocephalic form of autism spectrum disorder (ASD). The observation, published ...

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