Aspirin may help reduce the risk of liver and ovarian cancer October 8, 2018 Source: Xinhua Author: Zhou Zhou Xinhua News Agency, Washington, October 6 (Reporter Zhou Zhou) Two new studies published in the new issue of the Journal of the American Medical Association, Oncology, suggest that long-term use of aspirin may help reduce the risk of liver cancer and ovarian cancer. . In the first study, researchers at Massachusetts General Hospital analyzed data collected by more than 133,000 people since the 1980s. The results showed that taking 325 mg of standard dose of aspirin 2 or more per week reduced the risk of primary hepatocellular carcinoma by 49%; after taking it for more than 5 years, the risk was reduced by 59%. Studies have shown that the longer you take aspirin, the more your risk of developing liver cancer falls. However, after stopping the drug, the effect will gradually decrease. After 8 years of drug withdrawal, this benefit will disappear. In addition, taking non-steroidal anti-inflammatory drugs other than aspirin does not help reduce the risk of liver cancer. In the second study, researchers at Harvard University and other institutions analyzed data from more than 200,000 women, of whom 1054 had ovarian cancer. The study found that women taking aspirin in small doses (100 mg or less) had a 23% lower risk of developing ovarian cancer compared with women who did not take aspirin. However, taking the 325 mg standard dose of aspirin did not have this effect. The study also found that long-term use of non-steroidal anti-inflammatory drugs other than aspirin may increase the risk of ovarian cancer.
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Using sequence-specific primers, the number of copies of a particular DNA or RNA sequence can be determined.
By measuring the amount of amplified product at each stage during the PCR cycle, quantification is possible.
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quantify DNA or RNA in a sample.