The discovery could help with developing new treatments for chronic pain. It may explain why some painkillers work better for women than men and why postmenopausal women, whose bodies produce less of ...

“The fact that there’s a sex-dependent influence on these cells – driven by estrogen and progesterone – and that it’s not related at all to any immune function is very unusual,” said ...

They used various techniques to mess with the estrogen and progesterone levels in the mice. They found that blocking the effects of both hormones seemed to make Tregs work less well in females ...