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The Association Between Telomere Length and Propofol Dose in Anesthesia-induction

NCT03429309 · Status: UNKNOWN · Phase: NA · Type: INTERVENTIONAL · Enrollment: 100

Last updated 2018-02-12

No results posted yet for this study

Summary

Telomeres are protein-bound DNA repeat structures at the end of eukaryotic chromosomes that are made up of a simple repetitive sequence (in humans, TTAGGG) and regulate cellular replicative capacity and cellular proliferation, protect chromosomes from fusing together during mitosis and maintain genomic stability, and prevent the loss of genetic data. Telomeres are specialized repetitive DNA sequences, typically ranging from 5,000 to 15,000 bp in humans, which are the critical chromosome capping DNA sequences. The loss of telomere repeats diminishes telomeric functional capacity.Telomere length(TL) is important in determining telomere function.This is known as the end replication problem and results in a gradual decline in TL over time. Consequently,leukocyte TL shortens in a predictable way with age by roughly 20-40 base pairs per year. Cellular senescence and subsequent cell death often occur when the mean telomere length reaches a critical value.Shortened telomeres and lower telomerase are linked to age-related risk factors and disease.Peripheral blood leukocyte express telomerase at low levels, which can be measured over a short duration (hours) to demonstrate immediate, short-term changes. Shorter mean leukocyte telomere length has been shown to be associated with risk of several age-related diseases.The dosage of propofol gradually reduced with the aging process. However,it is not known whether the telomere length and variation of telomerase in PBL relate to the dosage of propofol and time of consciousness disappearance in anesthesia induction. In this exploratory study, the investigators examined that the changes of peripheral blood leukocyte telomere length was associated with the dosage of propofol and time of consciousness disappearance in anesthesia induction.

Given the importance of telomeres in nuclear and cellular function, the central role of telomere length in determining telomere function,the investigator study that the changes of telomere length in peripheral blood leukocyte of patients are associated with the dosage of propofol in anesthesia induction.

Conditions

  • General Anesthesia

Interventions

DRUG

Propofol

Anesthesia was induced by intravenous infusion of propofol via the syringe pump at a rate of 30 mg/kg/h.

Sponsors & Collaborators

  • Guangzhou General Hospital of Guangzhou Military Command

    lead OTHER

Study Design

Allocation
NA
Purpose
DIAGNOSTIC
Masking
NONE
Model
SINGLE_GROUP

Eligibility

Min Age
18 Years
Max Age
80 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2017-12-01
Primary Completion
2018-02-01
Completion
2018-02-28

Countries

  • China

Study Locations

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT03429309 on ClinicalTrials.gov