新しい研究により、ビタミンDが不足している女性は、乳がん手術後に強い痛みを感じやすく、オピオイド鎮痛薬の使用量も多くなることが判明した。研究では、ビタミンD不足の患者は、乳房切除術の翌日に中等度から重度の不快感を経験する確率が3倍高いことがわかった。
エジプトのファイユーム大学病院の研究チームは、片側の修正根治的乳房切除術を控えた女性184人を追跡調査した。この前向き観察研究は、2024年9月から2025年4月にかけて実施された。参加者の半数はビタミンDレベルが30 nmol/L未満で、残りは適切なレベルを維持していた。医療スタッフは治療中、これらの検査結果を知らされていない状態で対応にあたった。
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A study published in the journal *Bone Research* reports that parathyroid hormone (PTH) reduced pain-related behaviors in mouse models of spinal degeneration, apparently by strengthening vertebral endplates and triggering bone-cell signals that repel pain-sensing nerve fibers. The work was led by Dr. Janet L. Crane of Johns Hopkins University School of Medicine.
A major randomized trial led by Mass General Brigham found that a four-week course of high-dose vitamin D3 started soon after a positive COVID-19 test did not reduce acute illness severity, healthcare visits or deaths, and did not curb household spread. But in an analysis limited to participants who consistently took the assigned pills, researchers observed a small, borderline statistically significant difference in lingering symptoms reported eight weeks after infection, a finding they say warrants further study.
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A new study has found that adults with higher vitamin D levels in their 30s and 40s tend to have lower levels of tau protein in their brains about 16 years later. Tau is a key biomarker associated with dementia. The research, published this week, highlights a potential modifiable risk factor for brain health.
Women who frequently sought care before the pandemic faced a much higher risk of postcovid. A new study from Sahlgrenska Academy examined visits by 200,000 Swedish women to primary care.
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A 59-year-old woman achieved remission from a cancerous arm tumor without further treatment after a diagnostic biopsy. The procedure appears to have sparked an immune response that eliminated the myxofibrosarcoma within weeks. This marks one of only nine known similar cases.