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Oral squamous cell carcinoma and serum paraoxonase 1

  • Z Boy Metin (a1), S Aydin (a2), M Unur (a1), B Cakmakoglu (a3), B Toptas (a3), G Hafiz (a4) and T İsbir (a3)...



Serum paraoxonase 1 is involved in mechanisms that protect cells from oxidative stress damage. This study aimed to investigate the correlation between serum paraoxonase 1 activity and polymorphisms in patients with oral squamous cell carcinoma.

Methods and materials:

Fifty-seven patients with oral squamous cell carcinoma and 59 matched healthy controls participated in the study. Serum paraoxonase 1 activity and polymorphisms in blood samples were compared with results for polymerase chain reaction and restriction fragment length polymorphism tests.


Mean serum paraoxonase 1 activity levels were lower in patients than controls (mean ± standard deviation, 21.9 ± 5 units/l and 120.4 ± 2 units/l, respectively) (p = 0.001). The serum paraoxonase 1 192 glutamine polymorphism was more common in patients than controls.


Patients with oral squamous cell carcinoma had significantly lower serum paraoxonase 1 activity levels and a greater prevalence of the serum paraoxonase 1 192 glutamine allele, compared with controls. Serum paraoxonase 1 may play a role in the aetiology of oral squamous cell carcinoma.


Corresponding author

Address for correspondence: Dr Salih Aydın, Bağcilar Eğitim Araştirma Hastanesi, Kulak Burun Boğaz Kliniği, Bağcilar, Istanbul, Turkey43200 E-mail:


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Oral squamous cell carcinoma and serum paraoxonase 1

  • Z Boy Metin (a1), S Aydin (a2), M Unur (a1), B Cakmakoglu (a3), B Toptas (a3), G Hafiz (a4) and T İsbir (a3)...


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