Gene Expression and DNA Variation Analysis of Sacs to Identify the Pathophysiology of Indirect Inguinal Hernia

• ClinicalTrials.gov Identifier: NCT04634032
• Recruitment Status: Active, not recruiting
• First Posted: November 18, 2020
• Last Update Posted: November 24, 2020
• Sponsor: Trakya University
• Information provided by (Responsible Party): Oguz Kizilkaya, Trakya University

Study Description

Brief Summary:

The aim of the project is to show that gene expression levels change in at least one of the GATA6 and T-box transcription factor 3 (TBX3) genes in indirect inguinal hernia sacs, thus revealing that this pathway causes an error in the sac closure pathway.

Indirect inguinal hernia is an important condition for human health as it is common in the community and can lead to life-threatening or permanent loss of function. In addition, since the treatment is performed surgically, the follow-up and treatment process of the patients should be managed carefully in terms of complications and costs. By explaining the mechanisms of the occurrence of this disease, important steps will be taken in terms of both human health and the development of science. Moreover, the data to be collected may open new horizons in the treatment of inguinal hernia.

20 inguinal hernia patients those consecutively applied to Trakya University Medical Faculty Department of Pediatric Surgery and 20 circumcision patients as control group will be included in the study.

Condition or disease	Intervention/treatment
Indirect Inguinal Hernia; Genetic Predisposition to Disease	Genetic: mRNA expression and SNP analysis; Diagnostic Test: Blood sampling

Detailed Description:

Indirect inguinal hernia is one of the pathologies that is widely researched in national and international studies because of its high prevalence in the community and its life-threatening or permanent loss of function. However, no point has been reached regarding the etiology of this disease and a consensus has been reached.

The investigators believe that the study will contribute to the explanation of the formation mechanisms of the mentioned disease. Considering the high prevalence of this disease and its potential for life-threatening, the investigators anticipate that the analysis of the relevant genes for the Turkish population will make significant contributions to the public health. In the literature, analysis of GATA6 SNPs in the Chinese population has subsequently associated certain polymorphisms with indirect inguinal hernia. It is also been stated that TBX3 gene pathologies may be associated with inguinal hernia.

However, there is no study in the literature about the patent processus vaginalis expression levels of these genes. There is no study on the SNP analysis of these genes in Turkish population. For these reasons, the first time the expression / SNP analysis of the specified genes in Turkish society will be carried out will make an additional contribution to scientific knowledge. As stated clearly in the studies, the implementation of medical treatment of indirect inguinal hernia may change the approach of the pediatric surgical community to indirect inguinal hernia. In order for medical treatment to be carried out, the formation pathways and genetic origins of the disease must be clearly revealed.

Investigating the relationship of GATA6 and TBX3 genes, which are known to be involved in connective tissue homeostasis, with the mechanisms of indirect inguinal hernia formation, will contribute to the studies in the literature and is important in terms of revealing whether the treatment of these diseases can be performed medically in the future.

The study aims to reveal that gene expression levels in indirect inguinal hernia sacs due to SNPs in at least one of the GATA6 and TBX3 genes, thus causing an error in the sac closure pathway. The hypothesis of the study; It is stated that the gene expression levels of at least one of GATA6 and TBX3 in the sacs of inguinal hernia patients are altered.

The primary goal of this study is; To determine the level of GATA6 and TBX3 gene expression in sacs obtained from indirect inguinal hernia patients. The secondary goal is to investigate SNPs in the leukocytes of these patients and to investigate whether the genetic elements in our hypothesis in these diseases are regulated by different genes acting as transcription factors.

Considering that indirect inguinal hernia poses significant health risks, especially in children, it is predicted that the results to be obtained may contribute to clarification of the etiology and non-invasive methods other than surgery.

Study Design

• Study Type: Observational [Patient Registry]
• Actual Enrollment: 40 participants
• Observational Model: Case-Control
• Time Perspective: Prospective
• Target Follow-Up Duration: 14 Days
• Official Title: Gene Expression and DNA Variation Analysis of Sacs to Identify the Pathophysiology of Indirect Inguinal Hernia
• Actual Study Start Date: October 22, 2019
• Actual Primary Completion Date: November 1, 2020
• Estimated Study Completion Date: November 20, 2020

Groups and Cohorts

Group/Cohort	Intervention/treatment
Hernia; Patients planned to undergo routine indirect inguinal hernia repair procedure	Genetic: mRNA expression and SNP analysis; mRNA expression and SNP analysis from samples; Diagnostic Test: Blood sampling; Peripheral blood sampling for SNP analysis
Control; Patients planned to undergo routine circumcision procedure	Genetic: mRNA expression and SNP analysis; mRNA expression and SNP analysis from samples; Diagnostic Test: Blood sampling; Peripheral blood sampling for SNP analysis

Outcome Measures

Primary Outcome Measures :

1. Gene expression and Single Nucleotide Polymorphism analysis [ Time Frame: up to 3 months after completion of the study ]
   Determining the varieties of messenger ribonucleic acid (mRNA) expression levels between groups and possible Single Nucleotide Polymorphisms (SNP)

Biospecimen Retention:   Samples With DNA

Patent processus vaginalis and preputial tissue samples for mRNA expression analysis, peripheral white blood cells for SNP analysis

Eligibility Criteria

• Ages Eligible for Study: up to 18 Years (Child, Adult)
• Sexes Eligible for Study: Male
• Gender Based Eligibility: Yes
• Gender Eligibility Description: Indirect inguinal hernia development differs between both sexes , our study aims to research indirect inguinal hernia in male population
• Accepts Healthy Volunteers: Yes
• Sampling Method: Probability Sample

Study Population

All patients applied to the Trakya University Hospital Pediatric Surgery Clinic that meet the inclusion criteria and whose legal representative gave consent to be enrolled included to the study.

Criteria

Inclusion Criteria:

• to accept to participate the study
• pediatric age
• isolated indirect inguinal hernia patient with no additional systemic/congenital disease
• patients requesting circumcision procedure with no additional systemic/congenital disease

Exclusion Criteria:

• patients with any syndromic disease
• patients with hypospadias
• patients with undescended testes
• patients with umbilical hernia

Contacts and Locations

Locations

Turkey

Trakya University

Edirne, Turkey, 22030

Sponsors and Collaborators

Trakya University

Investigators

• Principal Investigator: Oguz Kizilkaya; Trakya University

More Information

• Responsible Party: Oguz Kizilkaya, Resident, Trakya University
• ClinicalTrials.gov Identifier: NCT04634032
• Other Study ID Numbers: HerniaOK
• First Posted: November 18, 2020
• Last Update Posted: November 24, 2020
• Last Verified: November 2020

Individual Participant Data (IPD) Sharing Statement:

• Plan to Share IPD: No
• Plan Description: There is no plan to share the data at this time but it may be possible after completion of the publication process.

• Studies a U.S. FDA-regulated Drug Product: No
• Studies a U.S. FDA-regulated Device Product: No

Keywords provided by Oguz Kizilkaya, Trakya University:

indirect inguinal hernia; GATA6; TBX3; SNP; gene expression

Additional relevant MeSH terms:

Hernia; Hernia, Inguinal; Disease Susceptibility; Genetic Predisposition to Disease; Pathological Conditions, Anatomical; Hernia, Abdominal; Disease Attributes; Pathologic Processes