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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)

12. oktober 2026 oppdatert av: 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.

Studieoversikt

Status

Har ikke rekruttert ennå

Forhold

Intervensjon / Behandling

Detaljert beskrivelse

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.

Studietype

Intervensjonell

Registrering (Antatt)

30

Fase

  • Ikke aktuelt

Kontakter og plasseringer

Denne delen inneholder kontaktinformasjon for de som utfører studien, og informasjon om hvor denne studien blir utført.

Studiekontakt

Studiesteder

    • TQ
      • Nasiriyah, TQ, Irak, 64001
        • Al Nasiriya Teaching Hospital
        • Ta kontakt med:

Deltakelseskriterier

Forskere ser etter personer som passer til en bestemt beskrivelse, kalt kvalifikasjonskriterier. Noen eksempler på disse kriteriene er en persons generelle helsetilstand eller tidligere behandlinger.

Kvalifikasjonskriterier

Alder som er kvalifisert for studier

12 år til 40 år (Barn, Voksen)

Tar imot friske frivillige

Ja

Kjønn som er kvalifisert for studier

Alle

Beskrivelse

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.

Studieplan

Denne delen gir detaljer om studieplanen, inkludert hvordan studien er utformet og hva studien måler.

Hvordan er studiet utformet?

Designdetaljer

  • Primært formål: Grunnvitenskap
  • Tildeling: N/A
  • Intervensjonsmodell: Enkeltgruppeoppdrag
  • Masking: Ingen (Open Label)

Våpen og intervensjoner

Deltakergruppe / Arm
Intervensjon / Behandling
Eksperimentell: 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.

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.

Hva måler studien?

Primære resultatmål

Resultatmål
Tiltaksbeskrivelse
Tidsramme
Change in Adenosine Triphosphate (ATP) Concentration
Tidsramme: 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
Tidsramme: 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

Sekundære resultatmål

Resultatmål
Tiltaksbeskrivelse
Tidsramme
Change in Malondialdehyde (MDA) Levels
Tidsramme: 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
Tidsramme: 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
Tidsramme: 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
Tidsramme: 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

Samarbeidspartnere og etterforskere

Det er her du vil finne personer og organisasjoner som er involvert i denne studien.

Sponsor

Etterforskere

  • Studieleder: Hattf B. Farhood, PhD, University of Thi-Qar

Studierekorddatoer

Disse datoene sporer fremdriften for innsending av studieposter og sammendragsresultater til ClinicalTrials.gov. Studieposter og rapporterte resultater gjennomgås av National Library of Medicine (NLM) for å sikre at de oppfyller spesifikke kvalitetskontrollstandarder før de legges ut på det offentlige nettstedet.

Studer hoveddatoer

Studiestart (Antatt)

13. oktober 2026

Primær fullføring (Antatt)

15. januar 2027

Studiet fullført (Antatt)

15. januar 2027

Datoer for studieregistrering

Først innsendt

16. september 2026

Først innsendt som oppfylte QC-kriteriene

16. september 2026

Først lagt ut (Faktiske)

22. september 2026

Oppdateringer av studieposter

Sist oppdatering lagt ut (Faktiske)

16. oktober 2026

Siste oppdatering sendt inn som oppfylte QC-kriteriene

12. oktober 2026

Sist bekreftet

1. september 2026

Mer informasjon

Begreper knyttet til denne studien

Andre studie-ID-numre

  • UOTQ-SCI-2026-001

Plan for individuelle deltakerdata (IPD)

Planlegger du å dele individuelle deltakerdata (IPD)?

JA

IPD-planbeskrivelse

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-delingstidsramme

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

Tilgangskriterier for IPD-deling

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-deling Støtteinformasjonstype

  • STUDY_PROTOCOL
  • SEVJE
  • ANALYTIC_CODE

Legemiddel- og utstyrsinformasjon, studiedokumenter

Studerer et amerikansk FDA-regulert medikamentprodukt

Nei

Studerer et amerikansk FDA-regulert enhetsprodukt

Nei

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