Immunology

Study casts light on deadly immune response

(Medical Xpress)—Examining a case study of near-death experiences for six healthy men who volunteered to test an experimental drug in London has yielded important insights into potentially deadly over-reactions of the human ...

Immunology

Natural killer cells played a vital role in human evolution

(Medical Xpress)—Natural killer cells – a vital part of the immune system – have a dual role in protecting against infection and ensuring reproduction. Scientists suggest that the multi-tasking ability of these cells ...

Medical research

Bacteria and people: In it together

Next time your digestive system malfunctions in some embarrassing way, you can always blame man's best friend - not the dog, but the bacterial cells that live in your intestines. Not everyone has a dog but we all have enormous ...

Other

Men with deep voice may be lacking in sperm: study

(Medical Xpress) -- Women look for tall, dark and handsome. Those chiseled features and that deep sexy voice have gained the attention of women for generations. However, a new study published in PLoS ONE shows that those ...

Medical research

Sexual selection by sugar molecule helped determine human origins

Researchers at the University of California, San Diego School of Medicine say that losing the ability to make a particular kind of sugar molecule boosted disease protection in early hominids, and may have directed the evolutionary ...

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