In the May 27 SN: Genetic intruders, seeing Chaco in a new light, an artificial womb, Mars’ origin revisited, domestication of the horse, glimpsing Earth’s glacial past, what’s in a fang blenny’s bite and more.
CHOW TIME When scientists used light to stimulate select nerve cells in a region of the brain called the zona incerta, mice began eating voraciously. The results suggest that the little-studied brain region may have a role in eating behavior.
Anthony van den Pol
CHIP OF HOLES When an antibody-coated chip with nano-sized holes (left) binds proteins in extracellular vesicles (droplets in image at right) shed from pancreatic tumors, a sensor detects a shift in the wavelength of light shining through the holes.
K.S. Yang et al/STM 2017
Statins did not cause a meaningful reduction in heart attacks, coronary heart disease deaths or deaths from any cause in people age 65 and older, a new analysis finds.