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In nonvalvular atrial fibrillation patients, rivaroxaban was noninferior to warfarin for the prevention of stroke or systemic embolism. However, an intention-to-treat analysis did not show superiority of rivaroxaban over warfarin.
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It has been well recognized that a peak in stroke onset occurs during the early morning hours. This possible circadian periodicity is not well understood, and may in part represent stroke onset earlier during the night that goes unrecognized until the patient arouses.
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A prospective, randomized controlled trial measured the impact of a low-fat diet that included high levels of omega-3 fatty acids from fish oil on biomarkers for prostate cancer. No significant differences were found for the primary outcome during an interim analysis and the trial was stopped early. Analysis of secondary endpoints showed some significant differences between the groups, although other biomarkers did not differ.
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A randomized controlled trial of weekly clinical hypnosis sessions plus home self-hypnosis practice over 5 weeks for breast cancer survivors with hot flashes resulted in significant symptomatic improvement when compared to a matched group of women who received no additional treatment.
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We all know that we should be drinking more green tea; every few days, either the media or medical journals are touting a new use for the Asian staple. Can it really cure breast cancer while preventing liver disease, simultaneously increasing knee range of motion in people suffering from osteroarthritis? The answer is "possibly, yes," but an evidence-based review refines the glowing reports with some clinical pearls, dosing specifics, and hopeful avenues of future research, as detailed below.
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A well-done meta-analysis showed that green tea, either as a beverage or as a supplement, could help lower total and LDL cholesterol levels in a statistically significant manner, but has no effect on HDL. The degree of clinical impact is debatable; what is not debatable is the poor quality of most studies on green tea and cholesterol.
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The SELECT Trial investigators report on nearly 10 years of follow-up of participants in a study of selenium and vitamin E and the risk of prostate cancer. A small but statistically significant increased risk of prostate cancer appears to be associated with taking vitamin E supplements. These results are in disagreement with others in the literature, and the authors present no plausible biological explanation for them. Nonetheless, the balance of evidence does not appear to support any recommendation that physicians advise their middle-aged and elderly patients to begin vitamin E supplementation for prostate cancer prevention.
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Thousands of Chinese used a compound called maxingshigan-yinqiaosan (MY) for treatment of flu symptoms during the 2009 H1N1 epidemic. MY is a concoction of 12 different herbs, including toasted Herba ephedra, as well as qinghao, gypsum fibrosum, and rhizoma.
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In a case-control study using a biomarker for lignan intake, women with breast cancer who had higher levels of the biomarker post-diagnosis had a reduced risk of mortality over a median follow-up period of 6 years compared to women with low levels of the biomarker.
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Data from this large observational trial with an average follow-up of over 8 years suggest that even 15 minutes a day of moderate-intensity exercise, such as taking a brisk walk, provides significant health benefits in terms of lowered mortality risks and life extension.
