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Spots Global Cancer Trial Database for Role of Cytochrome P450 2D6 (CYP2D6) *4 Polymorphism,in Malignant Breast Diseases

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Trial Identification

Brief Title: Role of Cytochrome P450 2D6 (CYP2D6) *4 Polymorphism,in Malignant Breast Diseases

Official Title: Role of Cytochrome P450 2D6 (CYP2D6) *4 Polymorphism, Oxidative Stress and Ferretin in Benign and Malignant Breast Diseases

Study ID: NCT00539422

Conditions

Breast Cancer

Study Description

Brief Summary: The aim of our study is to investigate the potential role of the CYP2D6\*4 polymorphism in breast cancer and furthermore to assess the role of oxidative stress, antioxidant capacity and ferretin in pathogenesis of breast cancer in different CYP2D6\*4 genotypes

Detailed Description: Breast cancer is the most common malignancy among women and the second highest cause of cancer death. Nevertheless most of the breast cancer is sporadic with no family history of the disease, Enhanced CYP2D6 activity has been related to malignancies of the bladder, liver, pharynx, and stomach and, especially, to cigarette-smoking-induced lung cancer. Data support that increased formation of reactive oxygen species (ROS) may play an important role in carcinogenesis Numerous in vitro experiments show that ROS damages DNA, inducing premutagenic modifications of nucleotides and promoting oxidation of proteins and lipid per oxidation The aim of our study is to investigate the potential role of the CYP2D6\*4 polymorphism in breast cancer and furthermore to assess the role of oxidative stress, antioxidant capacity and ferretin in pathogenesis of breast cancer in different CYP2D6\*4 genotypes.patients and methods : This study included 31 women admitted to the general surgery department, Mansoura University Hospital. group I consists of 15 women with benign breast lesion, group II composed of 16 women with cancer breast and 13 healthy women with matched age and clinically free were taken as a control group. DNA extraction and genotyping of cytochrome P450-2D6\*4 gene using conventional PCR followed by restriction enzyme (Mva1) digestion. Separated plasma was used for measurement of plasma malondialdehyde(MDA)concentration, total plasma antioxidant capacity and plasma ferretin level.Results homozygous genotype of 2D6\*4 represent 56.25 %( 9/16) of breast cancer group with lower wild type (31.25%-5/16), while it represent 33.3 %( 5/15) of begnine breast lesion group and 15.3(2/13) of the control group. Where the wild type represent the majority of cases (61.15%-8/13) in the control group and 46.6%-7/15) in the begnine breast lesion group. statistically significant increase in plasma ferretin and MDA mean levels in breast cancer group than begnine breast lesion and the control groups .Also, there is an increase in plasma total antioxidant activity in breast cancer group than the control group with nonstatistical difference between the breast cancer and the benign breast lesion groups . Conclusion CYP2D6\*4 genotype polymorphism interacting with plasma malondialdehyde (MDA) oxidative stress and plasma ferretin level may have a role in the pathogenesis of breast cancer

Eligibility

Minimum Age: 33 Years

Eligible Ages: ADULT

Sex: FEMALE

Healthy Volunteers: Yes

Locations

Mansoura Faculty of Medicine, Mansoura, Dakahlia, Egypt

Contact Details

Name: wagih m ghnnam

Affiliation: mansoura faculty of medicine general surgery department

Role: PRINCIPAL_INVESTIGATOR

Name: Aymen z El Samanoudy

Affiliation: mansoura faculty of medicine biochemistry department

Role: STUDY_DIRECTOR

Useful links and downloads for this trial

Clinicaltrials.gov

Google Search Results

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