Washington, October 12 : A study in mice has shown that a gene called SIRT1 prevents cholesterol build-up by activating a cellular pathway that expels cholesterol from the body.

Washington, Oct 12 : A study has found that pp32, a tumour-blocking protein in prostate and breast cancer development, may play a vital role in the growth of pancreatic cancer.

Washington, Oct 12 : Scientists at MIT have discovered a key protein that plays a crucial role in the recycling of iron from blood.