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The Effect of Light Therapy on Cellular Energy and Oxidative Stress in Healthy Adults and Type 1 Diabetic Patients (PBM-T1D)

2026年10月12日 更新者：Joudi Shaker、University of Thi-Qar

Biochemical Study of Metabolic Regulation and Extraction of Mitochondrial Biomarkers in Type 1 Diabetes Mellitus in Thi-Qar Governorate, Iraq

The goal of this clinical trial is to evaluate the effects of low-level light therapy on cellular energy and oxidative stress in healthy adults and patients with Type 1 diabetes. The main questions it aims to answer are:

Does light therapy change adenosine triphosphate (ATP) levels and cytochrome c oxidase activity in blood cells? How does the intervention affect oxidative stress markers, specifically glutathione and malondialdehyde concentrations? Researchers will compare blood samples collected before the light therapy to those collected afterward to see if the intervention alters mitochondrial function. Researchers will also compare the responses of healthy volunteers to those of diabetic patients.

Participants will:

Provide a baseline blood sample. Receive red and near-infrared light exposure (660 nm and 850 nm) on their arms for 10 to 20 minutes using a therapy pad.

Provide a final blood sample immediately after the light exposure.

研究概览

地位

尚未招聘

条件

干预/治疗

详细说明

This study evaluates the metabolic effects of photobiomodulation on peripheral blood mononuclear cells in patients with Type 1 diabetes and healthy volunteers. The intervention applies red (660 nm) and near-infrared (850 nm) light to stimulate cytochrome c oxidase within the mitochondrial electron transport chain. This photon absorption increases cellular respiration and alters oxidative stress markers.

Researchers collect baseline venous blood samples from all participants to establish initial biochemical parameters. The clinical team isolates peripheral blood mononuclear cells using density gradient centrifugation. Following baseline collection, participants receive a single 10-to-20-minute light therapy session on the upper arm using a flexible light pad. Researchers collect a second venous blood sample immediately after the light exposure.

The laboratory analysis quantifies specific mitochondrial and metabolic variables in the cell lysates before and after the intervention. The primary metrics are adenosine triphosphate (ATP) concentration and cytochrome c oxidase specific activity. Secondary measures include malondialdehyde and glutathione to assess lipid peroxidation and antioxidant capacity. The research team also measures lactate and pyruvate levels to evaluate shifts in cellular glycolysis, alongside standard fasting plasma glucose monitoring. The comparative analysis evaluates differences in metabolic response between the diabetic cohort and the healthy matched controls.

研究类型

介入性

注册 (估计的)

30

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。

学习联系方式

学习地点

  • 伊拉克
    • TQ
      • Nasiriyah、TQ、伊拉克、64001
        • Al Nasiriya Teaching Hospital
        • 接触：

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

12年 至 40年 (孩子、成人)

接受健康志愿者

是的

有资格学习的性别

全部

描述

Inclusion Criteria:

  • Age 12 to 40 years.
  • Confirmed diagnosis of Type 1 Diabetes Mellitus based on American Diabetes Association criteria (patient group).
  • Insulin dependence (patient group).
  • Low serum C-peptide levels (patient group).
  • Fasting plasma glucose concentration <100 mg/dL (healthy control group).
  • Glycated haemoglobin (HbA1c) <5.7% (healthy control group).
  • Diabetes duration of at least 1 year (patient group).

Exclusion Criteria:

  • Diabetic ketoacidosis within the preceding month.
  • High-sensitivity C-reactive protein (hs-CRP) >10 mg/L or active infection.
  • Renal insufficiency.
  • Liver disease.
  • Pregnancy.
  • Smoking.
  • Use of antioxidant supplements, vitamin C, or vitamin E within the preceding month.
  • Autoimmune diseases other than Type 1 Diabetes Mellitus.
  • Haematological disorders.

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：基础科学
  • 分配：不适用
  • 介入模型：单组作业
  • 屏蔽：无（打开标签）

武器和干预

参与者组/臂
干预/治疗
实验性的：Photobiomodulation Intervention

Researchers apply the photobiomodulation device to the arm of every enrolled participant, encompassing both the healthy volunteers and the patients diagnosed with Type 1 diabetes, for a strictly timed session lasting between 10 and 20 minutes.
设备：Red and Near-Infrared Light Therapy Pad

Participants receive a single photobiomodulation session using a flexible light therapy pad. The device delivers red light at 660 nm and near-infrared light at 850 nm with an operating voltage of 5V and a working current of 1.7A. The pad is placed in direct contact with the upper arm of each participant for a timed duration of 10 to 20 minutes. Researchers evaluate cellular responses before and immediately after this single application.

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
Change in Adenosine Triphosphate (ATP) Concentration
大体时间：Baseline and immediately after the 10-to-20-minute light therapy session

Researchers measure ATP levels in blood cells using a specific assay kit to evaluate cellular energy production.
Baseline and immediately after the 10-to-20-minute light therapy session
Change in Cytochrome c Oxidase Activity
大体时间：Baseline and immediately after the 10-to-20-minute light therapy session

Researchers assess the specific activity of cytochrome c oxidase in blood samples via a biochemical assay to determine mitochondrial function.
Baseline and immediately after the 10-to-20-minute light therapy session

次要结果测量

结果测量
措施说明
大体时间
Change in Malondialdehyde (MDA) Levels
大体时间：Baseline and immediately after the 10-to-20-minute light therapy session

Researchers quantify MDA concentration in the collected blood samples to assess oxidative stress.
Baseline and immediately after the 10-to-20-minute light therapy session
Change in Lactate and Pyruvate Concentrations
大体时间：Baseline and immediately after the 10 to 20-minute light therapy session

Researchers determine the concentrations of lactate and pyruvate in blood cells to analyze metabolic shifts.
Baseline and immediately after the 10 to 20-minute light therapy session
Change in Glutathione (GSH) Levels
大体时间：Baseline and immediately after the 10-to-20-minute light therapy session

Researchers measure glutathione concentration in the blood samples to evaluate antioxidant capacity.
Baseline and immediately after the 10-to-20-minute light therapy session
Change in Blood Glucose Levels
大体时间：Baseline and immediately after the 10-to-20-minute light therapy session

Researchers measure blood glucose concentrations in the collected blood samples to evaluate glycemic changes following the light therapy session.
Baseline and immediately after the 10-to-20-minute light therapy session

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。

赞助

University of Thi-Qar

调查人员

  • 研究主任：Hattf B. Farhood, PhD、University of Thi-Qar

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 (估计的)

2026年10月13日

初级完成 (估计的)

2027年1月15日

研究完成 (估计的)

2027年1月15日

研究注册日期

首次提交

2026年9月16日

首先提交符合 QC 标准的

2026年9月16日

首次发布 (实际的)

2026年9月22日

研究记录更新

最后更新发布 (实际的)

2026年10月16日

上次提交的符合 QC 标准的更新

2026年10月12日

最后验证

2026年9月1日

更多信息

与本研究相关的术语

关键字

其他相关的 MeSH 术语

其他研究编号

  • UOTQ-SCI-2026-001

计划个人参与者数据 (IPD)

计划共享个人参与者数据 (IPD)？

是的

IPD 计划说明

All individual participant data (IPD) that underlie the results reported in the published article will be shared after complete de-identification. This includes demographic characteristics and all measured biochemical variables (ATP concentration, cytochrome c oxidase activity, malondialdehyde, glutathione, lactate, pyruvate, and blood glucose) collected at baseline and immediately following the light therapy session.

IPD 共享时间框架

Data will become available immediately following the publication of the study results and will remain accessible for 5 years.

IPD 共享访问标准

Data and supporting documents will be available to academic researchers who submit a methodologically sound proposal. Requesters must outline the specific aims of their intended analysis, such as meta-analyses or secondary evaluations related to photobiomodulation and cellular metabolism. Requests should be sent directly to the corresponding author via email. The principal investigator and the academic supervisory committee at Thi-Qar University will review all requests. This process prevents data misuse. Upon approval, the research team will transmit the de-identified datasets securely to the requester.

IPD 共享支持信息类型

  • 研究方案
  • 树液
  • 分析代码

药物和器械信息、研究文件

研究美国 FDA 监管的药品

不

研究美国 FDA 监管的设备产品

不

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.

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