Distribution of RET Mutations and Evaluation of Treatment Approaches in Hereditary Medullary Thyroid Carcinoma in Turkey

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dc.authorid0000-0001-9908-7449en_US
dc.contributor.authorAydoğan, Berna İmge
dc.contributor.authorYüksel, Bağdagül
dc.contributor.authorTuna, Mazhar Müslüm
dc.contributor.authorBaşaran, Mehtap Navdar
dc.contributor.authorKocaeli Akkurt, Ayşen
dc.contributor.authorErtörer, Melek Eda
dc.contributor.authorAydın Tezcan, Kadriye
dc.contributor.authorGüldiken, Sibel
dc.contributor.authorŞimşek, Yasin
dc.contributor.authorÖzdamar Karaca, Züleyha Cihan
dc.contributor.authorYılmaz, Merve
dc.contributor.authorAktürk, Müjde Yaşım
dc.contributor.authorAnaforoğlu, İnan
dc.contributor.authorKebapçı, Medine Nur
dc.contributor.authorDuran, Cevdet
dc.contributor.authorTaşlıpınar, Abdullah
dc.contributor.authorKulaksızoğlu, Mustafa
dc.contributor.authorGürsoy, Alptekin
dc.contributor.authorDağdelen, Selçuk
dc.contributor.authorErdoğan, Murat Faik
dc.date.accessioned2020-01-18T21:02:58Z
dc.date.available2020-01-18T21:02:58Z
dc.date.issued2016
dc.departmentNEÜ, Meram Tıp Fakültesi, Dahili Tıp Bilimleri Bölümü, İç Hastalıkları Anabilim Dalıen_US
dc.description.abstractObjective: This retrospective multicenter study, centrally conducted and supported by the Society of Endocrinology and Metabolism of Turkey, aimed to evaluate the impact of free RET proto-oncogene testing in medullary thyroid carcinoma (MTC) patients. Surgical timing, adequacy of the treatment, and frequency of prophylactic thyroidectomy (PTx) in mutation carriers were also assessed. Methods: Genetic testing for MTC and pheochromocytoma was conducted between July 2008 and January 2012 in 512 patients. Application forms and RET mutation analyses of these patients whose blood samples were sent from various centers around Turkey were assessed retrospectively. An evaluation form was sent to the physicians of the eligible 319 patients who had confirmed sporadic MTC, familial MTC (FMTC), multiple endocrine neoplasia type 2 (MEN2), or who were mutation carriers. Physicians were asked to give information about the surgical history, latest calcitonin levels, morbidity, mortality, genetic screening, and PTx among family members. Twenty-five centers responded by filling in the forms of 192 patients. Results: Among the 319 patients, RET mutation was detected in 71 (22.3%). Cys634Arg mutation was the most prevalent mutation (43.7%), followed by Val804Met in 18 patients (25.4%), and Cys634Tyr in 6 patients (8.5%). Among 192 MTC patients, the diagnosis was sporadic MTC in 146 (76.4%), FMTC in 14 (7.3%), MEN2A in 15 patients (7.9%), and MEN2B in one patient. The number of mutation carriers among 154 apparently sporadic MTC patients was 8 (5.2%). Ten patients were submitted to PTx out of twenty-four mutation carriers at a mean age of 35±19 years. Conclusion: Turkish people have a similar RET proto-oncogene mutation distribution when compared to other Mediterranean countries. Despite free RET gene testing, the number of the PTx in Turkey is limited and relatively late in the life span of the carriers. This is mainly due to patient and family incompliance and incomplete family counselling.en_US
dc.identifier.citationİmge, A. B., Yüksel, B., Kulaksızoğlu, M., Tuna, M. M., Başaran, M. N., Kocaeli Akkurt, A., Ertörer, M. E., Aydın Tezacn, K., ... Erdoğan, M. F. (2016). Distribution of RET Mutations and Evaluation of Treatment Approaches in Hereditary Medullary Thyroid Carcinoma in Turkey. Journal of Clinical Research in Pediatric Endocrinology, 8, 1, 13-20.en_US
dc.identifier.doi10.4274/jcrpe.2219en_US
dc.identifier.endpage20en_US
dc.identifier.issn1308-5727en_US
dc.identifier.issn1308-5735en_US
dc.identifier.issue1en_US
dc.identifier.scopusqualityQ2en_US
dc.identifier.startpage13en_US
dc.identifier.urihttp://app.trdizin.gov.tr/publication/paper/detail/TVRrNU16TTBOQT09
dc.identifier.urihttps://hdl.handle.net/20.500.12452/1391
dc.identifier.volume8en_US
dc.identifier.wosWOS:000378168600002en_US
dc.identifier.wosqualityQ3en_US
dc.indekslendigikaynakTR-Dizinen_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.relation.ispartofJournal of Clinical Research in Pediatric Endocrinologyen_US
dc.relation.publicationcategoryMakale - Ulusal Hakemli Dergi - Kurum Öğretim Elemanıen_US]
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.subjectEndokrinoloji ve Metabolizmaen_US
dc.subjectPediatrien_US
dc.subjectSporadic Medullary Thyroid Carcinomaen_US
dc.subjectHereditary Medullary Thyroid Carcinomaen_US
dc.subjectMultiple Endocrine Neoplasiaen_US
dc.subjectRet Mutationen_US
dc.titleDistribution of RET Mutations and Evaluation of Treatment Approaches in Hereditary Medullary Thyroid Carcinoma in Turkeyen_US
dc.typeArticleen_US

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