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临床试验/NCT03962673
NCT03962673已完成不适用

Intestinal Microbiota Changes After Ultra Violet Radiation B Exposure

University of British Columbia2 个研究点 分布在 1 个国家目标入组 23 人开始时间: 2018年2月19日最近更新:
适应症
干预措施

试验速览

阶段
不适用
状态
已完成
入组人数
23
试验地点
2
主要终点
Serum vitamin D

研究概览

简要总结

This research will explore the potential effects of Narrow-Band Ultra Violet B (NB-UVB) radiation on the intestinal microbiota composition and confirm a regulatory skin-to-gut axis during baseline conditions. Changes in the intestinal microbiota composition caused by NB-UVB phototherapy could be beneficial for patients with chronic/auto-inflammatory diseases like inflammatory bowel disease (IBD) by removing dangerous bacteria, increasing beneficial bacteria, and ultimately modulating immune responses.

详细描述

Purpose:

To explore the potential effects of Narrow-Band Ultra Violet B (NB-UVB) radiation on the intestinal microbiota composition in humans and confirm a regulatory skin-to-gut axis during baseline conditions.

Hypothesis:

Humans exposed to UVB-NB light will show changes in the intestinal microbiota composition with the selection of certain phyla of bacteria.

Justification:

研究设计

研究类型
Interventional
分配方式
Na
干预模型
Single Group
主要目的
Basic Science
盲法
None

入排标准

年龄范围
19 Years 至 40 Years(Adult)
性别
Female
接受健康志愿者

入选标准

  • Healthy Caucasian females
  • Fitzpatrick skin type I, II or III

排除标准

  • Skin photosensitivity due to medication
  • Been on vacation to a sunny destination three months before enrollment
  • Visit tanning beds on a regular basis in the past

研究组 & 干预措施

UVB- exposure

Experimental

Each participant will receive a pre-determined dose of UVB light. Serum Vitamin D and microbiome samples of each participant will be compared before and after the UVB light exposures.

干预措施: NB-UVB light exposure (Radiation)

结局指标

主要结局

Serum vitamin D

时间窗: 1 week

The effect of UVB light exposures on the serum vitamin D concentrations

Microbiome

时间窗: Before and after the UVB exposures (1 week apart)

Changes in the fecal microbiome composition after the UVB light exposures

次要结局

未报告次要终点

研究者

申办方类型
Other
责任方
Principal Investigator
主要研究者

Bruce Vallance

Principle Investigator

University of British Columbia

研究点 (2)

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