Medical research

Cholesterol's effects on cellular membranes

For more than a decade, scientists have accepted that cholesterol—a key component of cell membranes—did not uniformly affect membranes of different types. But a new study led by Assistant Professor Rana Ashkar of the ...

Medical research

How mechanical forces nudge tumors toward malignancy

All cancers are the result of cells that have gone haywire, multiplying out of control and expanding beyond their normal constraints. But not all tumors are the same: for reasons that remain poorly understood, some are more ...

Genetics

Genetic mutations may be linked to infertility, early menopause

A new study from Washington University School of Medicine in St. Louis identifies a specific gene's previously unknown role in fertility. When the gene is missing in fruit flies, roundworms, zebrafish and mice, the animals ...

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