Genetics

'Junk DNA' drives embryonic development

An embryo is an amazing thing. From just one initial cell, an entire living, breathing body emerges, full of working cells and organs. It comes as no surprise that embryonic development is a very carefully orchestrated process—everything ...

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 ...

Immunology

The innate immune system condemns weak cells to their death

In cell competition the strong eliminate the weak, thereby ensuring optimal tissue fitness. Molecular biologists at the University of Zurich and Columbia University have now demonstrated that the innate immune system plays ...

Alzheimer's disease & dementia

Why don't we all get Alzheimer's disease?

Researchers at the University of California, San Diego School of Medicine offer an explanation for why we all don't get Alzeimer's disease (AD)—a trick of nature that in most people maintains critical separation between ...

Medical research

Inactivation of taste genes causes male sterility

Scientists from the Monell Center report the surprising finding that two proteins involved in oral taste detection also play a crucial role in sperm development.

Oncology & Cancer

Fighting cancer with microgravity research

(Phys.org) —For lab-coated cancer biologists, peering through microscopes at stained tissue samples under fluorescent lights, the International Space Station may be the last thing that comes to mind. But 40 years of microgravity ...

Neuroscience

Researchers identify critical link in mammalian odor detection

Researchers at the Monell Center and collaborators have identified a protein that is critical to the ability of mammals to smell. Mice engineered to be lacking the Ggamma13 protein in their olfactory receptors were functionally ...

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