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Assessment of Telomerase Activity in Endometrial Tissue and Serum in Endometriosis Patients

Does Telomerase Activity Have an Effect on Infertility in Patients With Endometriosis ? Assessment of Telomerase Activity in Eutopic, Ectopic Endometrial Tissue and Serum

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT02984774
Enrollment
47
Registered
2016-12-07
Start date
2014-06-30
Completion date
2016-08-31
Last updated
2016-12-07

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Endometriosis Ovaries, Infertility, Female

Keywords

Endometriosis, Infertility, Telomerase activity

Brief summary

The goal of the study was the detection of telomerase activity in eutopic, ectopic endometrial tissue and in peripheral blood and finding the correlation between the telomerase activity and clinic findings. With these results, confirmation of the hypothesis regarding the endometriosis pathogenesis and endometriosis-related infertility was aimed.

Detailed description

Although distorted pelvic anatomy, impaired peritoneal, humoral and cellular functions, decreased implantation rate, oocyte and embryo quality, obstructed utero tubal connection are most researched aspects of endometriosis-related infertility, etiopathogenesis of endometriosis-related infertility still remains controversial. Endometrial cell is a unique eukaryotic somatic cell with cyclic telomerase activity. Hormone-dependent cyclic variation of endometrial telomerase activity was stated in previous studies. On the other hand telomerase, activity was shown in endometriotic lesions, whereas this activity lacks in most of the somatic cells. In this study, assessment of possible relation to increased telomerase activity in infertile patients with endometriosis was aimed. Before published studies were assessed telomerase activity in benign and malign gynecological conditions and in endometriosis tissue, as well. But evaluation of ectopic and eutopic endometrial tissue and serum telomerase activity in infertile and fertile endometriosis and healthy control subjects was not performed. Correlation of telomerase activity and endometriosis-related infertility was aimed in this study.

Interventions

PROCEDURECystectomy

Segment of cystic wall from the patients for planned cystectomy was taken after operation and was preserved at -80º Celsius for further analysis

Endometrial sampling was performed at the same operation with the planned operation for the main indication and was preserved at -80º Celsius for further analysis

PROCEDUREPeripheric blood sampling

4 cc peripheric venous blood was sampled into the EDTA(Ethylenediaminetetraacetic acid)-containing tubes during catheterization for anesthesia was preserved at 4º Celsius for further analysis

PROCEDUREOvarian tissue sampling

2cm linear tissue sample from ovarian cortex was performed at the same operation with the planned operation for the main indication and was preserved at -80º Celsius for further analysis

Sponsors

Istanbul University
Lead SponsorOTHER

Study design

Allocation
NON_RANDOMIZED
Intervention model
PARALLEL
Primary purpose
BASIC_SCIENCE
Masking
NONE

Eligibility

Sex/Gender
FEMALE
Healthy volunteers
Yes

Inclusion criteria

Clinical diagnosis of Infertility Clinical and histological diagnosis of endometriosis

Exclusion criteria

Malign disorders Hormone replacement treatment Oral Contraceptive using

Design outcomes

Primary

MeasureTime frameDescription
Telomerase activitythrough study completion, an average of 1 yearAssessment of telomerase activity with Telomeric Repeat Amplification Protocol Polymerase Chain Reaction method from tissue and blood

Secondary

MeasureTime frameDescription
Age in yearsDuring admission to hospital for surgeryFrom patient anamnesis
Marital status (single, married, divorced, widow)During admission to hospital for surgeryFrom patient anamnesis
Smoking status ( yes/no)During admission to hospital for surgeryFrom patient anamnesis
BMI in kg/m2During admission to hospital for surgeryFrom patient anamnesis
Cystic size in cmDuring operationMacroscopically assessment during surgery

Countries

Turkey (Türkiye)

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026