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By experimenting in cells and mice, the researchers have identified and verified that a protein called Slc12a8 is in fact the mystery transporter, and Slc12a8 requires the presence of sodium ions to transport NMN into cells, showed the study published Monday in the inaugural issue of the journal Nature Metabolism.

By the end of last year, it had 3,618 physical stores across China, including the 2,286 outlets in Shanghai.

By the end of 2018, Longchuan will plant a total of 4,000 hectares of mulberry trees.

CANBERRA－Throughout the final months of 2019, Australia experienced its most destructive bushfire season ever recorded.

CAPE CANAVERAL, Fla. — Apollo 11 astronauts Buzz Aldrin and Michael Collins reunited Friday on the eve of the 50th anniversary of humanity's first moon landing.