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NatWonk – Dr Bier’s Research Reviews

NatWonk – Dr Bier’s Research Reviews

An Informed Medicine Approach

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Category: Interventions & Treatments

The effect of aged garlic extract on the atherosclerotic process – a randomized double-blind placebo-controlled trial

May 7, 2026
| No Comments
| Cardiovascular Health, Nutritional Supplements

Comment: I use Aged Garlic Extract in my practice for plaques and calcifications as there are no risks to offset the potential benefit. But I do need to apply the same standards to the study as I do to a statin trial. This data reveals presents a conflicting baseline that muddies any clear clinical conclusion. […]

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Pravastatin and cognitive function in the elderly – Results of the PROSPER study

April 12, 2026
| No Comments
| Medications - General Pharmaceuticals, Neurological & Cognitive Health

Comment: The findings in this randomized controlled trial of 5,804 elderly participants are unequivocal: after a mean follow-up of 42 months, pravastatin demonstrated absolutely no difference in cognitive decline across any domain—including executive function, processing speed, or memory. It also celebrates  a 24% RRR in cardiovascular mortality while the Absolute Risk Reduction (ARR) was a […]

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Association of statins use and genetic susceptibility with incidence of Alzheimer’s disease

April 10, 2026
| No Comments
| Medications - General Pharmaceuticals, Neurological & Cognitive Health

Comment: This UK Biobank cohort study highlights a conflict between the narrative of statins as a vascular panacea and the documented reality that their use is associated with a 19% increased risk of incident Alzheimer’s disease (HR = 1.19). Looking carefully at the  “protective” finding in APOE ε 4 homozygotes (HR = 0.72), there are […]

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Postmenopausal Hormone Therapy and Risk of Stroke: Impact of the Route of Estrogen Administration and Type of Progestogen

February 9, 2026
| No Comments
| Cardiovascular Health, Medications - General Pharmaceuticals, Miscellaneous

Comment: There is an assumption that specific routes of hormone therapy (MHT) offer a safe harbor from cardiovascular risk, yet this systematic review of over 5.5 million women identifies a profound disconnect between biochemical promise and systemic biological reality. While early initiation is frequently justified by observational data, we should recognize that these perceived benefits […]

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The risk of ovarian cancer in hormone replacement therapy users: a systematic review and meta-analysis

February 8, 2026
| No Comments
| Cancer, Medications - General Pharmaceuticals

Comment: This article shows an increase in ovarian cancer risk with longer term use of HRT. Both estrogen alone and estrogen-progesterone showed an increase, and the association was stronger in the cohort studies than the case control studies, which are the more robust .   Cohort Studies: The 21 cohort studies showed a slightly higher risk. […]

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The route of administration, timing, duration and dose of postmenopausal hormone therapy and cardiovascular outcomes in women: a systematic review

February 8, 2026
| No Comments
| Cardiovascular Health, Medications - General Pharmaceuticals

Comment: This systematic review of 33 studies and over 2.5 million women reveals a critical tension between biochemical plausibility and actual clinical outcomes, at least for oral dosing. While observational data suggests early initiation reduces coronary heart disease, we should recognize that some of these findings are likely compromised by Healthy User Bias—where healthier women […]

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Antimicrobial Natural Product Berberine Is Efficacious for the Treatment of Atrial Fibrillation

January 31, 2026
| No Comments
| Cardiovascular Health, Nutritional Supplements

Comment: This comparison of 88 completed follow-ups shows that natural alkaloids can function as antiarrhythmics. While amiodarone converts rhythm significantly faster (211 vs. 356 minutes), it does so while maintaining a “brittle” rhythm that is more prone to attrition over time than the rhythm supported by berberine. The statistical parity between the two agents at […]

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TEAS, DHEA, CoQ10, and GH for poor ovarian response undergoing IVF-ET: a systematic review and network meta-analysis

January 31, 2026
| No Comments
| Nutritional Supplements

Comment: The clinical management of Poor Ovarian Response (POR) is historically a cycle of diminishing returns, often relying on aggressive gonadotropin doses that fail to overcome a depleted ovarian reserve. This network meta-analysis disrupts that paradigm, suggesting that the hardest clinical success in IVF—a live birth—is not achieved by simply pushing the ovaries harder, but […]

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Effective management of atherosclerosis progress and hyperlipidemia with nattokinase: A clinical study with 1,062 participants

January 29, 2026
| No Comments
| Cardiovascular Health, Nutritional Supplements

Comment: This study shifted my thinking around nattokinase as it somewhat clarified contradictions in the literature around efficacy, specifically it showed the failure of the “standard” 2,000 FU recommendation to hit the physiological threshold necessary for vascular remodeling. This study of 1,062 participants suggests that biology requires far more significant saturation to move the needle […]

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Use of Sedative-Hypnotics and Mortality: A Population-Based Retrospective Cohort Study

January 12, 2026
| No Comments
| Medications - General Pharmaceuticals, Sleep

Comment: A central discrepancy revealed in this research is the failure of Z-drugs, or specifically zolpidem, to deliver on their promise of clinical safety. Despite conventional wisdom suggesting they are a safer class, the data confirms that sedative-hypnotic users as a whole faced a significantly higher mortality risk than non-users. This human clinical data provides […]

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