Tales from the crypt: Study on gut cell regeneration reconciles long-standing research controversy

The cells that help to absorb food and liquid that humans consume are constantly being produced. The various cell types that do this come from stem cells that reside deep in the inner recesses of the accordion-like folds of the intestines, called villi and crypts. But exactly where the most important stem cell type is located -- and how to identify it -- has been something of a mystery.

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