Word: beta
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Dates: during 1990-1990
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Through its ability to scavenge free oxygenions, beta carotene could undermine the dangerousoperation of the LDL molecules and thus reducecancer and heart disease risk...
...earliest to do so was Mathews-Roth,who legitimized beta carotene as a viable medicaldrug in the mid-1970s. Then working onprotoporphyria, an obscure disease which rendersits sufferers highly sensitive to light,Mathews-Roth stumbled across the organic moleculeas a treatment...
Both Hennekens and Mathews-Roth admit that herprotoporphyria research was an important step inthe evolution of the Physicians' Health Study. Bydemonstrating that huge doses of beta carotene hadno adverse effects on the subjects (except for therather unfortunate consequence of turning theirskin yellowish-orange), she was able to sellHennekens on the safety of the drug in alarge-scale clinical trial...
...study published earlier this year,researchers at the Anderson Cancer Center inHouston found that beta carotene did not performas effectively as current treatments in reversingoral cancer...
Within a few days of that announcement,Dartmouth researchers presented a study whichshows beta carotene was ineffective in treatingskin cancer after three to five years. E. RobertGreenberg of the Norris Cotton Cancer Centerauthored the study, which he published in TheNew England Journal of Medicine...