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审核状态: Project audit state: |
通过审核 Successful |
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注册号: Registration number: |
ChiCTR2500105525 |
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最近更新日期: Date of Last Refreshed on: |
2025-07-04 16:10:06 |
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注册时间: Date of Registration: |
2025-07-04 00:00:00 |
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注册号状态: |
预注册 |
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Registration Status: |
Prospective registration |
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注册题目: |
探讨腹腔镜袖状胃切除术对肥胖患者肠道微生物群的影响及其机制 |
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Public title: |
Exploring the impact and mechanisms of laparoscopic sleeve gastrectomy on gut microbiota in obese patients |
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注册题目简写: |
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English Acronym: |
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研究课题的正式科学名称: |
探讨腹腔镜袖状胃切除术对肥胖患者肠道微生物群的影响及其机制 |
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Scientific title: |
Exploring the impact and mechanisms of laparoscopic sleeve gastrectomy on gut microbiota in obese patients |
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研究课题代号(代码): Study subject ID: |
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在二级注册机构或其它机构的注册号: The registration number of the Partner Registry or other register: |
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申请注册联系人: |
陈锋 |
研究负责人: |
陈锋 |
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Applicant: |
Feng Chen |
Study leader: |
Feng Chen |
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申请注册联系人电话: Applicant telephone: |
+86 18277167385 |
研究负责人电话:
Study leader's |
+86 771 4808102 |
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申请注册联系人传真 : Applicant Fax: |
研究负责人传真: Study leader's fax: |
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申请注册联系人电子邮件: Applicant E-mail: |
fengchen@sr.gxmu.edu.cn |
研究负责人电子邮件: Study leader's E-mail: |
252775439@qq.com |
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申请单位网址(自愿提供): Applicant website(voluntary supply): |
研究负责人网址(自愿提供): Study leader's website(voluntary supply): |
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申请注册联系人通讯地址: |
广西南宁市淡村路13号 |
研究负责人通讯地址: |
广西南宁市淡村路13号 |
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Applicant address: |
13 Dancun Road, Jiangnan District, Nanning, Guangxi Zhuang Autonomous Region, China |
Study leader's address: |
13 Dancun Road, Jiangnan District, Nanning, Guangxi Zhuang Autonomous Region, China |
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申请注册联系人邮政编码: Applicant postcode: |
研究负责人邮政编码: Study leader's postcode: |
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申请人所在单位: |
南宁市第二人民医院 |
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Applicant's institution: |
The Second Nanning People’s Hospital |
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研究负责人所在单位: |
南宁市第二人民医院 |
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Affiliation of the Leader: |
The Second Nanning People’s Hospital |
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是否获伦理委员会批准: |
是 |
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Approved by ethic committee: |
Yes |
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伦理委员会批件文号: Approved No. of ethic committee: |
Y2025207 |
伦理委员会批件附件: Approved file of Ethical Committee: |
查看附件View |
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批准本研究的伦理委员会名称: |
南宁市第二人民医院医学伦理委员会 |
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Name of the ethic committee: |
Ethics Committee of The Second Nanning People’s Hospital |
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伦理委员会批准日期: Date of approved by ethic committee: |
2025-06-10 00:00:00 | ||
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伦理委员会联系人: |
黄丽娇 |
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Contact Name of the ethic committee: |
Huang Lijiao |
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伦理委员会联系地址: |
广西南宁市淡村路13号 |
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Contact Address of the ethic committee: |
13 Dancun Road, Jiangnan District, Nanning, Guangxi Zhuang Autonomous Region, China |
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伦理委员会联系人电话: Contact phone of the ethic committee: |
+86 771 4808020 |
伦理委员会联系人邮箱: Contact email of the ethic committee: |
804659794@qq.com |
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研究实施负责(组长)单位: |
南宁市第二人民医院 |
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Primary sponsor: |
The Second Nanning People’s Hospital |
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研究实施负责(组长)单位地址: |
广西南宁市淡村路13号 |
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Primary sponsor's address: |
13 Dancun Road, Jiangnan District, Nanning, Guangxi Zhuang Autonomous Region, China |
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试验主办单位(项目批准或申办者): Secondary sponsor: |
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经费或物资来源: |
国家临床重点专科建设项目 |
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Source(s) of funding: |
National Clinical Key Specialty Construction Project |
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研究疾病: |
肥胖症;代谢综合征 |
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Target disease: |
Obesity;Metabolic Syndrome |
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研究疾病代码: |
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Target disease code: |
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研究类型: |
观察性研究 |
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Study type: |
Observational study |
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研究所处阶段: |
其它 | ||||||||||||||||||||||
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Study phase: |
N/A |
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研究设计: |
队列研究 |
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Study design: |
Cohort study |
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研究目的: |
1).明确LSG 手术对肥胖患者肠道微生物群组成的影响:通过对比LSG 手术前后的微生物群数据,明确手术对微生物群多样性和丰度的影响。 2). 论证肠道微生物群变化与代谢改善之间的因果关系:通过统计分析,论证LSG手术后肠道微生物群的变化与患者代谢指标改善之间的相关性。 3). 阐明特定微生物群在宿主代谢调节中的作用:通过动物实验,阐明特定有益菌群在LSG手术后对宿主代谢的调节作用及其机制。 4). 探讨LSG手术对肠道屏障功能的影响及其机制:通过评估肠道通透性和相关生物标志物,探讨LSG手术对肠道屏障功能的影响及其与微生物群变化的关系。 |
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Objectives of Study: |
1. Determine the impact of LSG on gut microbiota composition in obese patients: Compare pre- and post-operative microbiota data to assess changes in microbial diversity and abundance. 2. Establish causality between gut microbiota alterations and metabolic improvement: Perform statistical analyses to correlate post-LSG microbiota shifts with improvements in metabolic parameters. 3.Elucidate the role of specific microbiota in host metabolic regulation: Conduct animal studies to clarify the mechanisms by which beneficial bacterial taxa modulate host metabolism after LSG. 4. Investigate LSG-induced effects on gut barrier function and underlying mechanisms: Evaluate intestinal permeability and related biomarkers to explore the relationship between LSG, gut barrier integrity, and microbiota changes. |
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药物成份或治疗方案详述: |
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Description for medicine or protocol of treatment in detail: |
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纳入标准: |
1.基于 WHO 标准(BMI ≥30 kg/m 2)或结合腰围/体脂率(如亚洲人群 BMI ≥27.5kg/m2); |
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Inclusion criteria |
1.Based on WHO criteria (BMI ▍>=30 kg/m^2) or combined with waist circumference/body fat percentage (e.g., BMI >=27.5 kg/m^2 for Asian populations). 2.Aged 18–65 years; 3.Confirm obesity duration (e.g., >=6 months) to exclude transient weight fluctuations. 4.Behavioral and Pharmacological Controls: Diet/Exercise: Participants must maintain stable lifestyle (e.g., no significant dietary/exercise changes in prior 3 months). Medications: Eligible if no use of metabolism-affecting drugs (e.g., hypoglycemics, anti-obesity agents); detailed documentation required. |
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排除标准: |
1.干扰肠道菌群的医疗因素:1)药物使用:近3个月内使用 抗生素、质子泵抑制剂(PPI)、免疫抑制剂或系统性激素;近 1 个月内 使用益生菌/益生元。2)胃肠道疾病:炎症性肠病(IBD)、肠易激综合征(IBS)、胃肠道手术史(如胃旁路术)。3)全身性疾病:自身免疫病、恶性肿瘤、慢性肝/肾功能不全。 |
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Exclusion criteria: |
1.Gut microbiota modifiers: Medications: Antibiotics, PPIs, immunosuppressants, or systemic hormones within 3 months; probiotics/prebiotics within 1 month. GI disorders: IBD, IBS, or prior GI surgery (e.g., gastric bypass). Systemic diseases: Autoimmune disorders, malignancies, chronic hepatic/renal insufficiency. 2.Metabolic/endocrine confounders: Thyroid dysfunction (e.g., abnormal TSH levels), Cushing’s syndrome, or other endocrine disorders. 3.Behavioral/Physiological Exclusions: Recent weight fluctuation: >=5% change within 3 months (indicating non-stable obesity). Special diets: Ketogenic, very-low-carbohydrate, or high-dose supplement use. Substance use: Heavy alcohol (>40g/day [male]/>20g/day [female]) or smoking (>10 cigarettes/day). 4.Inability to provide fecal samples (e.g., severe constipation/diarrhea) Recent bowel preparation (e.g., within 1 month post-colonoscopy); |
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研究实施时间: Study execute time: |
从 From 2025-05-20 00:00:00至 To 2028-05-20 00:00:00 |
征募观察对象时间: Recruiting time: |
从 From 2025-07-08 00:00:00 至 To 2028-05-20 00:00:00 |
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干预措施: Interventions: |
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研究实施地点: Countries of recruitment and research settings: |
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测量指标: Outcomes: |
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采集人体标本:
Collecting sample(s)
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征募研究对象情况: Recruiting status: |
尚未开始 Not yet recruiting |
年龄范围: Participant age: |
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性别: |
男女均可 |
Gender: |
Both |
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随机方法(请说明由何人用什么方法产生随机序列): |
无 |
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Randomization Procedure (please state who generates the random number sequence and by what method): |
None |
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是否公开试验完成后的统计结果: Calculated Results after the Study Completed public access: |
不公开/Private |
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盲法: |
无 |
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Blinding: |
None |
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是否共享原始数据: IPD sharing |
否No |
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共享原始数据的方式(说明:请填入公开原始数据日期和方式,如采用网络平台,需填该网络平台名称和网址): |
受控访问共享(学术研究用途); 共享平台:国家基因组科学数据中心; 共享时间:2028年12月30日以后 |
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The way of sharing IPD”(include metadata and protocol, If use web-based public database, please provide the url): |
Controlled-access sharing (for academic research purposes) Repository: National Genomics Data Center (NGDC) Data release date: After December 30, 2028 |
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数据采集和管理(说明:数据采集和管理由两部分组成,一为病例记录表(Case Record Form, CRF),二为电子采集和管理系统(Electronic Data Capture, EDC),如ResMan即为一种基于互联网的EDC: |
数据录入:所有研究数据(包括临床数据、实验室检测结果、测序数据等)将由专人负责录入电子数据库(Excel),采用双人独立录入模式以确保准确性。数据录入时需标注时间、样本编号及受试者唯一识别码,避免个人信息泄露。 数据核查:定期(每3个月)对数据进行逻辑核查与一致性检查,发现异常值时需追溯原始记录并修正。 关键指标(如BMI、微生物群多样性指数)需由两名研究人员交叉验证。 数据存档:原始数据(电子版与纸质版)保存于南宁市第二人民医院数据中心,加密存储,访问权限仅限于研究团队成员。生物样本数据(如DNA序列)备份至云端服务器(如NCBI数据库),脱敏处理后仅保留研究编号。研究结束后,数据存档至少10年,销毁需经伦理委员会批准。 |
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Data collection and Management (A standard data collection and management system include a CRF and an electronic data capture: |
Data Management Protocol Data Entry All research data (clinical, laboratory, sequencing) will be entered into electronic databases (Excel) by trained personnel using dual-independent entry to ensure accuracy. Entries must include timestamp, sample ID, and anonymized subject identifier (no personal information). Data Verification Quarterly logic/consistency checks with source documentation review for outliers. Key metrics (BMI, microbial diversity indices) require cross-validation by two researchers. Data Archiving Primary data (electronic/paper) stored in secured servers at Nanning Second People's Hospital with role-based access. Biomolecular data (e.g., DNA sequences) backed up to cloud platforms (e.g., NCBI) under anonymized study IDs. Retention: >=10 years post-study. Destruction requires ethics committee approval. |
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数据与安全监察委员会: Data and Safety Monitoring Committee: |
无/No |