Inflammatory Status of Visceral Adipose Tissue in Obese Patients Related to Periodontitis Severity (BACTERIOB)
2020年3月3日 更新者：Centre Hospitalier Universitaire de la Réunion
Comparative Evaluation of the Inflammatory Status of Visceral Adipose Tissue From Obese Patients According to the Presence and Severity of Periodontitis
The research aims to compare the inflammatory status of visceral adipose tissue from obese patients depending on the presence and severity of periodontitis, in order to establish a potential causal link between the severity of the bacterial contamination and insulin resistance.
研究概览
详细说明
Recruitment of patients will be achieved in the department of digestive surgery.
It will involve 122 patients with severe obesity undergoing bariatric surgery scheduled within the digestive surgery department.
Patients recruited will be examined for evaluating the presence and severity of periodontitis, and separated into either group 1: for patients with moderate or severe periodontitis, and or group 2: for patients without or with mild periodontitis.
The day before the surgery, blood sample will be collected for the analysis of circulating metabolic and inflammatory markers.
Collection of stimulated saliva, periodontal sample and faeces samples (50 g) will also be carried out for bacteria determination.
During the surgical procedure, a sample of visceral adipose tissue (50 g) will be collected and used for periodontal bacteria detection and inflammatory markers analyses.
研究类型
介入性
注册 (预期的)
122
阶段
- 不适用
联系人和位置
本节提供了进行研究的人员的详细联系信息，以及有关进行该研究的地点的信息。
学习地点
-
-
-
Saint-Pierre、团圆、97448
- 招聘中
- CHU de la Réunion
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接触：
- Nathalie LE-MOULLEC, MD
- 电话号码：+262(0)262359164
- 邮箱：nathalie.lemoullec@chu-reunion.fr
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首席研究员：
- Nathalie LE MOULLEC, MD
-
-
参与标准
研究人员寻找符合特定描述的人，称为资格标准。这些标准的一些例子是一个人的一般健康状况或先前的治疗。
资格标准
适合学习的年龄
18年 及以上 (成人、年长者)
接受健康志愿者
不
有资格学习的性别
全部
描述
Inclusion Criteria:
- Patient eligible for bariatric surgery scheduled within the digestive surgery
- Patient affiliated to Social Security system or equivalent
Exclusion Criteria:
- Treatment with steroids or anti-inflammatory drugs in progress (or stopped for less than one month)
- Patients who received antibiotics within 3 months prior to the bariatric surgery for whatever duration
- Dental current (or older than 3 months)
- Participation in another research protocol
学习计划
本节提供研究计划的详细信息，包括研究的设计方式和研究的衡量标准。
研究是如何设计的？
设计细节
- 主要用途：诊断
- 分配：非随机化
- 介入模型：并行分配
- 屏蔽：双倍的
武器和干预
参与者组/臂 |
干预/治疗 |
|---|---|
|
实验性的：SEVERE PERIODONTITIS
Periodontal examination Biological samples collection: periodontal, saliva, blood, fecal, visceral adipose tissue
|
Patients exhibiting moderate to severe periodontitis
|
|
其他：NO PERIODONTITIS
Periodontal examination Biological samples collection: periodontal, saliva, blood, fecal, visceral adipose tissue
|
Patients without existing periodontitis or exhibiting mild periodontitis
|
研究衡量的是什么？
主要结果指标
结果测量 |
措施说明 |
大体时间 |
|---|---|---|
|
Inflammatory status of visceral adipose tissue from obese patients depending on the presence and severity of periodontitis
大体时间：Consecutively to visceral fat biopsy (day of surgery)
|
Measurements of major adipocytokines (Interleukine 6, Leptin, Adiponectin, Tumor Necrosis Factor-alpha, Monocyte Chemoattractant Protein-1, macrophage F4/80 receptor, CD11c, nuclear factor-kappa B, Toll Like Receptor 2/4 )
|
Consecutively to visceral fat biopsy (day of surgery)
|
次要结果测量
结果测量 |
措施说明 |
大体时间 |
|---|---|---|
|
Detection of DNA for at least one type of periodontal pathogens in adipose tissue
大体时间：Consecutively to visceral fat biopsy (day of surgery)
|
Aggregatibacter actinomycetemcomitans, Fusibacterium nucleatum, Porphyromonas gingivalis, Prevotella intermedia, Treponema denticola and Tannerella forsythia
|
Consecutively to visceral fat biopsy (day of surgery)
|
|
Description of the metabolic profile of patients relative to periodontitis severity
大体时间：Consecutively to periodontal examination (day before surgery)
|
glycemia, insulinemia, glucose tolerance, plasma and HDL total cholesterol, triglycerides
|
Consecutively to periodontal examination (day before surgery)
|
|
Link between adipose tissue inflammatory status, bacterial contamination and metabolic profile of patients
大体时间：Consecutively to periodontal examination and fat biopsy (day before surgery, day of surgery)
|
adipose tissue inflammatory status, periodontal bacterial contamination,diabetic disorders, lipid metabolic profile of patients
|
Consecutively to periodontal examination and fat biopsy (day before surgery, day of surgery)
|
|
Link between the presence of periodontal pathogens in adipose tissue and their detection in saliva and plasma
大体时间：Consecutively to periodontal examination and fat biopsy (day before surgery, day of surgery)
|
Detection of antibodies directed to periodontal bacteria in saliva and plasma
|
Consecutively to periodontal examination and fat biopsy (day before surgery, day of surgery)
|
其他结果措施
结果测量 |
措施说明 |
大体时间 |
|---|---|---|
|
Collection of biological samples
大体时间：Consecutively to samples collection (day before surgery, day of surgery)
|
Plasma, saliva and adipose tissue.
|
Consecutively to samples collection (day before surgery, day of surgery)
|
合作者和调查者
在这里您可以找到参与这项研究的人员和组织。
研究记录日期
这些日期跟踪向 ClinicalTrials.gov 提交研究记录和摘要结果的进度。研究记录和报告的结果由国家医学图书馆 (NLM) 审查，以确保它们在发布到公共网站之前符合特定的质量控制标准。
研究主要日期
学习开始 (实际的)
2019年3月12日
初级完成 (预期的)
2020年7月1日
研究完成 (预期的)
2021年7月1日
研究注册日期
首次提交
2016年7月26日
首先提交符合 QC 标准的
2016年7月29日
首次发布 (估计)
2016年8月3日
研究记录更新
最后更新发布 (实际的)
2020年3月4日
上次提交的符合 QC 标准的更新
2020年3月3日
最后验证
2020年3月1日
更多信息
此信息直接从 clinicaltrials.gov 网站检索，没有任何更改。如果您有任何更改、删除或更新研究详细信息的请求，请联系 register@clinicaltrials.gov. clinicaltrials.gov 上实施更改，我们的网站上也会自动更新.