Science News for July 4, 2003

Estrogens as antioxidants – reducing heart disease in younger postmenopausal women

Research shows estrogens can act as antioxidants, protecting HDL from oxidation and enhancing its ability to shield LDL from damage. High levels of HDL also protect LDL when estrogens are present, with different estrogens displaying varying antioxidant potency.

SourceBMC (BioMed Central)·JournalLipids in Health and Disease·DateJul 4, 2003

A two-lane road to ruin

Granzyme A, a double-headed protease, is assembled into a dimer with identical catalytic domains connected by a covalent disulfide bond. This unique configuration enables the enzyme to recognize specific sequences and activate cell death machinery in tumor cells and virally infected cells.

SourceMax-Planck-Gesellschaft·JournalNature Structural & Molecular Biology·DateJul 4, 2003

Apple iPhone 17 Pro

Apple iPhone 17 Pro delivers top performance and advanced cameras for field documentation, data collection, and secure research communications.