Johnson, whose name appears in the video, said that many people have been contacting him personally, wanting to hear about his research (which is on gene regulation in cancer and HIV).

约翰逊的名字出现在录像中，他说有很多私下里联系他的人，想听听他的研究(于癌症和艾滋病毒基因调控中)。

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Associated Press writers Donna Gordon Blankinship and Gene Johnson in Seattle, and Terry Tang in Phoenix also contributed to this report.

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Associated Press writer Gene Johnson in Seattle contributed to this report.

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Geneticist Thomas Johnson, now at the University of Colorado, showed that altering a single gene, called age-1, doubled the worms' term of life to one month.

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