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Relative selenium insufficiency is a risk factor for developing severe Graves’ orbitopathy: a case–control study
BMJ Open Ophthalmology Pub Date : 2021-05-01 , DOI: 10.1136/bmjophth-2021-000713
Mingkwan Lumyongsatien 1 , Unnkade Bhaktikamala 1 , Pennung Thongtong 1 , Sunisa Sintuwong 1 , Ornvenus Nimitwongsakul 1 , Jugchawin Kanokkantapong 1 , Krit Pongpirul 2
Affiliation  

Background/aims Selenium (Se), an antioxidant agent, is effective in preventing mild Graves’ orbitopathy (GO) deterioration. However, the significant risk of low serum Se concentration for GO progression has not been identified. Here, we aimed to investigate the risk of relative Se insufficiency and to identify its optimal cut-off value in the development of disease severity in patients with GO. Methods Serum Se levels were prospectively measured in 100 consecutive patients with GO. The patients were classified into groups with mild and severe GO (logistic regression analysis outcome). A receiver operating characteristic (ROC) curve and the minimum p value corresponding to χ2 statistics were analysed to select the optimal cut-off Se level for the diagnosis of severe orbitopathy. Results Thirty-two patients (32%) had mild GO and 68 (68%) had severe GO. The ROC revealed a cut-off Se level of 93 µg/L. Se levels ≤93 µg/L were observed in 48.5% and 12.5% of the patients in the severe and mild (p<0.001) groups, respectively. The risk estimate (OR) for an Se level ≤93 µg/L was 8.14 (95% CI 2.39 to 27.75). It remained a significant risk factor after adjusting for age, sex, thyroid status, smoking status, thyroidectomy and radioactive iodine. Conclusion Relative Se insufficiency (≤93 µg/L) is a potential risk factor for severe GO development. An evaluation of Se status is recommended in patients with GO for predicting disease progression and guiding supplementation therapy. All data relevant to the study are included in the article.

中文翻译:

相对硒不足是发生严重 Graves 眼眶病的危险因素:病例对照研究

背景/目的硒 (Se) 是一种抗氧化剂,可有效防止轻度 Graves 眼眶病 (GO) 恶化。然而,尚未确定低血清硒浓度对 GO 进展的显着风险。在这里,我们旨在调查相对硒不足的风险,并确定其在 GO 患者疾病严重程度发展中的最佳临界值。方法 对 100 名连续 GO 患者的血清硒水平进行前瞻性测量。将患者分为轻度和重度 GO(逻辑回归分析结果)组。分析受试者工作特征 (ROC) 曲线和对应于 χ2 统计量的最小 p 值,以选择诊断严重眼眶病的最佳 Se 水平截止值。结果 32 名患者(32%)为轻度 GO,68 名(68%)患者为重度 GO。ROC 显示 Se 的临界值水平为 93 µg/L。在严重组和轻度组 (p<0.001) 中,分别有 48.5% 和 12.5% 的患者观察到硒水平≤93 µg/L。Se 水平 ≤93 µg/L 的风险估计值 (OR) 为 8.14(95% CI 2.39 至 27.75)。在调整了年龄、性别、甲状腺状况、吸烟状况、甲状腺切除术和放射性碘后,它仍然是一个重要的危险因素。结论 相对硒不足 (≤93 µg/L) 是严重 GO 发展的潜在危险因素。建议对 GO 患者进行硒状态评估,以预测疾病进展和指导补充治疗。所有与研究相关的数据都包含在文章中。重度组和轻度组(p<0.001)分别有 5% 和 12.5% 的患者。Se 水平 ≤93 µg/L 的风险估计值 (OR) 为 8.14(95% CI 2.39 至 27.75)。在调整了年龄、性别、甲状腺状况、吸烟状况、甲状腺切除术和放射性碘后,它仍然是一个重要的危险因素。结论 相对硒不足 (≤93 µg/L) 是严重 GO 发展的潜在危险因素。建议对 GO 患者进行硒状态评估,以预测疾病进展和指导补充治疗。所有与研究相关的数据都包含在文章中。重度组和轻度组(p<0.001)分别有 5% 和 12.5% 的患者。Se 水平 ≤93 µg/L 的风险估计值 (OR) 为 8.14(95% CI 2.39 至 27.75)。在调整了年龄、性别、甲状腺状况、吸烟状况、甲状腺切除术和放射性碘后,它仍然是一个重要的危险因素。结论 相对硒不足 (≤93 µg/L) 是严重 GO 发展的潜在危险因素。建议对 GO 患者进行硒状态评估,以预测疾病进展和指导补充治疗。所有与研究相关的数据都包含在文章中。吸烟状况、甲状腺切除术和放射性碘。结论 相对硒不足 (≤93 µg/L) 是严重 GO 发展的潜在危险因素。建议对 GO 患者进行硒状态评估,以预测疾病进展和指导补充治疗。所有与研究相关的数据都包含在文章中。吸烟状况、甲状腺切除术和放射性碘。结论 相对硒不足 (≤93 µg/L) 是严重 GO 发展的潜在危险因素。建议对 GO 患者进行硒状态评估,以预测疾病进展和指导补充治疗。所有与研究相关的数据都包含在文章中。
更新日期:2021-05-11
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