Chromosomal and oxidative DNA damage in non-functioning pituitary adenomas
| Autor: | Hamiyet Donmez-Altuntas, Ali Kurtsoy, Figen Öztürk, Yasin Simsek, Fahri Bayram, Zuhal Hamurcu, Gulden Baskol, Nazmiye Bitgen |
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| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Oncology
Genome instability Adenoma Pituitary gland medicine.medical_specialty DNA damage Endocrinology Diabetes and Metabolism Chromosomes Endocrinology Pituitary adenoma Internal medicine medicine Humans Pituitary Neoplasms Micronucleus Tests business.industry Chromosome Cancer medicine.disease Oxidative Stress medicine.anatomical_structure Apoptosis 8-Hydroxy-2'-Deoxyguanosine Micronucleus business DNA Damage |
| Popis: | Introduction: Clinically non-functioning pituitary adenomas (NFPA) are common tumours of the pituitary gland and are mainly considered as benign. The primary aim of this study was to research the effects of NFPA on genome instability in patients with non-functioning pituitary adenoma by using the cytokinesis-block micronucleus cytome (CBMN-cyt) assay and 8-hydroxy- 2’-deoxyguanosine (8-OHdG) assay. The second objective of this study was to assess whether there is a relationship between age, pituitary adenoma diameters, 8-OHDG levels, CBMN site assay parameters, and tumour aggressiveness. Material and methods: The study was performed on 30 patients who had been diagnosed with NFPA and were admitted to the Department of Endocrinology and Metabolism, and 20 healthy subjects of similar age and sex. Results: Micronucleus (MN), nucleoplasmic bridges (NPBs), nuclear bud (NBUD) frequencies, and apoptotic and necrotic cell frequencies in patients with NFPA were found to be significantly higher than in control subjects, and plasma 8-OHdG levels in patients with NFPA were statistically significantly lower than control subjects in this study. Conclusions: It is believed that this is the first study to evaluate the aggressiveness of tumour with chromosome/oxidative DNA damage in patients with NFPA. However, further studies are needed in order to understand the cause of NFPA aggression and to evaluate these patients in terms of risk of cancer. |
| Databáze: | OpenAIRE |
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