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NatWonk – Dr Bier's Research Reviews

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Month: October 2025

Risk of cancer in long-term levothyroxine users: Retrospective population-based study

October 30, 2025
| No Comments
| Cancer, Levothyroxine

Comment: This is an important, large-scale population study, even with the weaknesses of the study design. An adjusted odds ratio of 1.50 for any cancer is a significant signal that cannot be easily dismissed, particularly given the strong associations noted for brain (AOR 1.90) and breast (AOR 1.24) cancers. While the authors rightly point out […]

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RSV Vaccine Effectiveness Against Hospitalization Among US Adults Aged 60 Years or Older During 2 Seasons

October 29, 2025
| No Comments
| Vaccines

Comment: A critical takeaway from this real-world data is the apparent lack of protection for oncology patients. The finding for the immunocompromised subgroup—which includes many patients with active cancer or on immunosuppressive therapy—is stark. A vaccine effectiveness of 30% that is not statistically significant (95% CI, -9% to 55%) means we cannot conclude there is […]

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No impact of fish oil supplements on bleeding risk: a systematic review

October 27, 2025
| No Comments
| Fish Oil-EFA

Comment:   This is a crucial systematic review that directly addresses a common clinical misconception. For years, the standard advice has been to stop fish oil before surgery due to a theoretical risk of bleeding based on its known effects on platelet aggregation. What this review clearly demonstrates is that this theoretical risk does not […]

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Fish Oil and Peri-operative Bleeding: Insights from the Omega-3 Fatty Acids for Prevention of Postoperative Atrial Fibrillation (OPERA) Randomized Trial

October 27, 2025
| No Comments
| Fish Oil-EFA

Comment: This study is a critical piece of evidence that directly challenges a long-standing piece of medical dogma. For decades, we have routinely advised patients to stop fish oil supplements before surgery, fearing an increased risk of bleeding. This was solely based on hypothesis. This robust analysis of the OPERA trial not only debunks that […]

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OncWonk – Our Sibling Site

October 26, 2025
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| Uncategorized

OncWonk – Oncology Research Reviews

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Association of Skipping Breakfast with Metabolic Syndrome and Its Components: A Systematic Review and Meta-Analysis of Observational Studies

October 24, 2025
| No Comments
| CVD, Fasting

Comment: I am in general not a fan of intermittent fasting as my experience is it puts the body in a state of stress, which may give short term gains, but longer term negative outcomes. This is a study showing that skipping breakfast increases metabolic syndrome, including blood sugar, blood pressure, blood lipids and central […]

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Evaluating the Association Between Low-Density Lipoprotein Cholesterol Reduction and Relative and Absolute Effects of Statin Treatment

October 21, 2025
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| CVD, Mortality-death, Statins

Meta-analyses showed reductions in the absolute risk of 0.8% (95% CI, 0.4%-1.2%) for all-cause mortality, 1.3% (95% CI, 0.9%-1.7%) for myocardial infarction, and 0.4% (95% CI, 0.2%-0.6%) for stroke in those randomized to treatment with statins,

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Lack of an association or an inverse association between low-density-lipoprotein cholesterol and mortality in the elderly: a systematic review

October 20, 2025
| No Comments
| CVD, Mortality-death

Comment: This study shows that in elderly patients, higher LDL/”bad” cholesterol is associated with longer lifespan. Summary: Clinical Bottom Line This systematic review presents a provocative challenge to the conventional cholesterol hypothesis. In an analysis of cohort studies including over 68,000 individuals older than 60, high low-density lipoprotein cholesterol (LDL-C) was not associated with increased […]

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Total cholesterol and all-cause mortality by sex and age: a prospective cohort study among 12.8 million adults

October 19, 2025
| No Comments
| CVD, Mortality-death

Comment: Another in a line of studies showing that our concept of cholesterol is wrong when it comes to the outcomes that matter. This one is particularly interesting as it breaks it down by age, showing that as we get older, higher cholesterol becomes more protective. Summary: Based on this large observational study, the health […]

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A nonlinear association of total cholesterol with all-cause and cause-specific mortality

October 19, 2025
| No Comments
| CVD, Statins

Comment: Another in a series of studies that contradicts the dogma that lower cholesterol is better. Although the authors calculated cut off points, using the spline graphs you can see that cholesterol up to about the 230 range is lowest risk of overall deaths and even 300 is better than 180. For cancer you’re safer and […]

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Recent Posts

  • Levothyroxine and lung cancer in females: the importance of oxidative stress
  • Levothyroxine use and the risk of breast cancer: a nation-wide population-based case-control study
  • Risk of cancer in long-term levothyroxine users: Retrospective population-based study
  • RSV Vaccine Effectiveness Against Hospitalization Among US Adults Aged 60 Years or Older During 2 Seasons
  • No impact of fish oil supplements on bleeding risk: a systematic review

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    Categories

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    • CVD
    • Fasting
    • Fish Oil-EFA
    • HRT – Hormone Replacement Therapy
    • Levothyroxine
    • Mortality-death
    • Nutrition
    • Statins
    • Uncategorized
    • Vaccines
    • Vitamin D

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