Oral Human Administration of Red Grape Polyphenol in Nickel-mediated Allergic Contact Dermatitis: an in Vitro Study
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 发起方
- 入组人数
- 50
- 试验地点
- 2
- 主要终点
- Evaluation of Serum Biomarker Concentrations at the Time of Enrollment (T0)
研究概览
简要总结
Nickel (Ni)-mediated allergic contact dermatitis (ACD) is a very common disease worldwide. Our previous findings demonstrated that in vitro supplementation of polyphenols, extracted from seeds of red grape (Nero di Troia cultivar), to peripheral lymphomonocytes from Ni-mediated ACD patients could reduce release of T helper (h)1 [interferon (IFN)-] and Th2 [interleukin (IL)-4] cytokines, on the one hand. On the other hand, IL-10 (an anti-inflammatory cytokine) levels increased with a reduction of IL-17 (an inflammatory cytokine). Also levels of nitric oxide (NO) decreased in response to polyphenol pretreatment.
详细描述
Nickel (Ni) is a transitional metal largely distributed in the environment whose continuous exposure is able to provoke local and systemic allergic contact dermatitis (ACD). Ni-mediated ACD is characterized by loss of epidermal integrity, urticaria/angioedema, flares, and itching, whose extent depends on many variables such as genetic, time of sensitization and environmental exposure.The aim of the present research is to verify whether the oral administration of polyphenols (NATUR-OX®) to patients with Ni-mediated ACD is able to modify immune parameters.
研究设计
- 研究类型
- Interventional
- 分配方式
- Randomized
- 干预模型
- Parallel
- 主要目的
- Supportive Care
- 盲法
- Double (Participant, Investigator)
入排标准
- 年龄范围
- 25 Years 至 60 Years（Adult）
- 性别
- Female
- 接受健康志愿者
- 否
入选标准
- •Female patient; Age: 25-60 Years; Ni-mediated ACD (positive reaction to the nickel patch test)
排除标准
- •Absence of other pathologies such as immune-mediated diseases, metabolic diseases (diabetes and obesity)
- •infectious episodes in the last month and intake of immunosuppressive drugs or drugs influencing the immune response.
结局指标
主要结局
Evaluation of Serum Biomarker Concentrations at the Time of Enrollment (T0)
时间窗: Baseline (T0)
At the time of enrollment (T0) concentrations of serum biomarkers (pg/ml) (IFN-γ, IL-17, IL-4, IL-10, PTX3 and NO) will be evaluated in patients of which, one group (A) will assume polyphenols (NATUR-OX ) while the other group (B) will assume placebo. Of note, from each group 7 spontaneously dropouts occurred. An ELISA method will be use to analyze and to assess serum biomarker concentrations.
次要结局
- Evaluation of Serum Biomarker Concentrations at the End of the Treatment (T1)(After 3 months (T1))
研究者
Thea Magrone
Aggregate Professor of Immunology
University of Bari