Clin Nutrition: 白塞病患者补充葡萄糖酸锌可以调节免疫反应和临床效果

2022-05-10 xuyihan MedSci原创

本研究表明,补锌可显着改善 BD 患者的IBDDAM 评分和 TLR-2 表达, 并进一步改善疾病炎症活动度。

白塞病(BD) 是一种自身免疫性疾病,属于血管炎类风湿性疾病,影响不同器官并导致严重疾病表现,包括皮肤损伤、口腔生殖器溃疡、胃肠道疾病、中枢神经系统(CNS) 受累、静脉炎、关节痛、关节炎和葡萄膜炎等。BD 在“丝绸之路”国家更为普遍;在这些国家中,土耳其和伊朗的 BD 患病率最高(分别约为每 100,000 人中有 421 和 80 例)。男性发病率最高,发病多见于 20-40 岁人群。不同的观察性研究表明,BD 患者中 TLR-2 和 TLR-4 的表达高于对照组,TLRs主要表达在内皮细胞、上皮细胞和先天免疫系统的细胞上,他们可以识别病原体相关分子模式(PAMP)。因此,它们在先天免疫中发挥关键作用。

改善疾病的抗风湿药 (DMARDs),例如硫唑嘌呤、吗替麦考酚酯和甲氨蝶呤,可以用于治疗 BD。作为一种微量元素,锌对williamhill asia 的健康有广泛的影响,并且可能是管理 BD 的一种选择。锌可以通过影响TLR 信号来改变免疫系统的活性。有一些锌指蛋白参与 TLR 介导的途径,此外,锌可以增加一些抗氧化酶的活性并减轻慢性炎症。因此,锌对于先天免疫系统对抗病原体的正常活动至关重要。在此,本项研究旨在评估补充葡萄糖酸锌对BD患者 TLR-2 和 TLR-4 mRNA 和蛋白表达、TNF-α 水平、血压、生活质量和疾病活动的可能影响。

在这项双盲安慰剂对照随机临床试验中,50 名 BD 患者被随机分配到葡萄糖酸锌(30 mg/天)组或安慰剂组,治疗为期 12 周。干预前后白细胞TLR-2和TLR-4表面及mRNA表达水平、血清锌水平和肿瘤坏死因子-α(TNF-α)水平、生活质量、人体测量指标、血压的患者被研究人员详细收集。在干预前和干预后阶段,使用白塞病动态活动测量 (IBDDAM)、白塞病当前活动表 (BDCAF) 和总炎症活动指数 (TIAI) 研究 BD 疾病活动度。

 

研究结果显示与安慰剂相比,锌治疗组的TLR-2 mRNA ( P= 0.038) 和蛋白质表达( P= 0.034) 和IBDDAM 评分 ( P= 0.046) 显着降低。锌治疗组血清锌水平升高(P< 0.001)。补锌显着降低了组内TLR-4蛋白(P= 0.012)和 mRNA表达(P= 0.028)。然而,与安慰剂组相比,这种下降并不显着。两组血清TNF-α、BDCAF、TIAI、生活质量、人体测量指标、血压水平比较,差异均无统计学意义(P> 0.05)。

 

本研究表明,补锌可显着改善 BD 患者的IBDDAM 评分和 TLR-2 表达, 并进一步改善疾病炎症活动度。

原始出处:

Amir HosseinFaghfouri. Et al. Immunomodulatory and clinical responses to zinc gluconate supplementation in patients with Behçet's disease: A double-blind, randomized placebo-controlled clinical trial. Clinical Nutrition.2022.

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