Molecular Biology Reports

, Volume 41, Issue 2, pp 997–1001 | Cite as

Lack of association between cyclooxygenase 2−765G/C gene polymorphism and breast cancer risk in Ahvaz, west-south Iran

  • Behnaz Ahmadi
  • Abdolrahim Nikzamir
  • Seid Mohamadali Ghafari
  • Ghorban Mohamadzadeh
  • Mahmod Latifi
  • Ahmad Bafandeh
  • Mohammad Fathi
  • Mir Saeed Yekaninejad
  • Mahfam Nikzamir


Cyclooxygenases are key enzymes in conversion of arachidonic acid into prostaglandin H2. Cyclooxygenase-2 (COX-2) increases prostaglandins in neoplastic tissue. COX-2 has important roles in cell proliferation cancers, angiogenesis, and alzheimer. COX-2 is up-regulated in several types of cancer, and it is hypothesized that COX-2 expression may be genetically influenced. Our main objective was to evaluated the association of polymorphism COX-2 with risk of breast cancer in khouzestan province, and the second objective of the study was to evaluate the association with biochemistry parameters. This study consisting of 150 patients with breast cancer and 120 normal DNA was extracted from the white blood cells. Polymorphism cox2 gene was detected by polymerase chain reaction according to the standard methods. The profile lipids and estrogen were measured in two groups by standard methods. Chi square analysis showed that there was no association between breast cancer risk and COX-2 −765G>C genotype and alleles. Also, no association were observed between −765G>C polymorphism and biochemistry parameters. A multiple logistic regression model with cox2 genotypes and LDL and HDL as covariates revealed that there is no significant association between cox2 genotypes and risk of breast cancer, but higher values of LDL and HDL significantly increase risk of breast cancer.


Cyclooxygenase gene Breast cancer Polymorphism 



The authors thank all the subjects for participating. This study was supported by the Department of Biochemistry, Faculty of Medicine, Ahvaz Jondishapour University of Medical sciences, Ahvaz, Iran.


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Copyright information

© Springer Science+Business Media Dordrecht 2014

Authors and Affiliations

  • Behnaz Ahmadi
    • 1
  • Abdolrahim Nikzamir
    • 1
    • 2
  • Seid Mohamadali Ghafari
    • 1
  • Ghorban Mohamadzadeh
    • 1
  • Mahmod Latifi
    • 3
  • Ahmad Bafandeh
    • 1
  • Mohammad Fathi
    • 4
  • Mir Saeed Yekaninejad
    • 5
  • Mahfam Nikzamir
    • 6
  1. 1.Department of Biochemistry, Faculty of MedicineAhvaz Jondishapour University of Medical SciencesAhvazIran
  2. 2.Endocrine Research CenterValiasr Hospital, Tehran University of Medical SciencesTehranIran
  3. 3.Health Department, Faculty of HealthAhvaz Jondishapour University of Medical SciencesAhvazIran
  4. 4.Anesthesiology Department, Faculty of MedicineMofid Children’s Hospital, Shahid Beheshti University of Medical SciencesTehranIran
  5. 5.Department of Epidemiology and BiostatisticsSchool of Public Health, Tehran University of Medical SciencesTehranIran
  6. 6.Farzanegan 2 High SchoolNational Organization of Developing Exceptional TalentsTehranIran

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