TY - JOUR TI - Association of Leucocyte Telomere Length with Nasopharyngeal Carcinoma Risk and Prognosis AB - Objectives: Cancer development and/or progression can be imputed to telomere shortening or lengthening. The cur- rent research was planned to assess the relation between leucocyte telomere length (LTL) and nasopharyngeal carci- noma (NPC) development, and to evaluate the association between this biomarker and patients' clinical outcomes, mainly response to chemo-radiotherapy, survival and EBV-DNA load. Methods: Leucocyte telomere length was measured using a singleplex quantitative polymerase chain reaction (qPCR) method in 104 NPC patients and 52 healthy controls. The association between LTL and NPC development was assessed using a Khi-deux test. Odds ratios (ORs) and 95% confidence intervals (CI) were calculated by conditional logistic re- gression to evaluate the relationship LTL and patient’s characteristics. The correlation between LTL and 4-years patient’s survival outcomes was assessed by Kaplan–Meier and Cox-regression analyses. Results: Data analysis revealed a significant association between LTL and risk of NPC development (p<0.0001). LTL was also significantly associated with gender (p=0.003), cigarette smoking (p=0.02) and pre-EBV-DNA load (p=0.017) in NPC. However, no significant association was obtained between LTL and age, alcohol consumption, TNM classification, disease stage, response to chemo-radiotherapy and survival outcomes of NPC patients (p>0.05). Conclusion: The study finding highlighted the close association between LTL and NPC development and showed a sig- nificant association with gender, cigarette smoking and pre-EBV-DNA load, suggesting that LTL could be a promising biomarker for better management of NPC in Morocco. Nevertheless, more studies are needed to highlight the value of LTL as a biomarker for the prediction of the response to treatment and prognosis of NPC. AU - El Mzibri, Mohammed AU - chaoui, imane AU - ALAMI, Imane El AU - Benchakroun, Nadia AU - BENIDER, Abdellatif AU - amina, gihbid AU - Charoute, Hicham AU - TAWFIQ, Nezha AU - Benani, abdelouaheb AU - BRAHIM, Selma Mohamed AU - AZZOUZI, Meryem El AU - BELGHMI, Khalid AU - Khyatti, Meriem DO - 10.14744/ejmo.2023.19019 PY - 2023 JO - Eurasian Journal of Medicine and Oncology VL - 7 IS - 2 SN - 2587-2400 SP - 135 EP - 142 DB - TRDizin UR - http://search/yayin/detay/1184002 ER -