Journals / Bezmiâlem Science / 2019 / Cilt: 7 - Sayı: 2

Cytogenetic Studies of Chromosome Abnormalities in Thyroid Cancer Patients Before and After Iodine-131 Treatment

Tiroid Kanseri Hastalarında İyot-131 Tedavisi Öncesi ve Sonrası Kromozom Anomalileri Üzerine Sitogenetik Araştırmalar

Pages
118–123
DOI
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AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

Conclusion: Our results demonstrate that applied therapeutic clinical dose does not show cytogenetic abnormalities risks of the early period in patients.I-131 treatment is a good option for the treatment of thyroid cancer,but also we recommend that physicians should perform long term follow-up examinations for IR exposed patients and prevent possible complications.

📌 3 Key Takeaways

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Objective & Hypothesis:Objective: Thyroid cancer is among the most common endocrine malignancies.
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Key Findings & Data:I-131,which is used to damage surgically unremoved thyroid tissue or treat metastases, is a source for ionizing radiation (IR), also generates potential mutagenic and carcinogenic effects.The purpose of research is to investigate the damage on chromosomes at the I-131 treatment of thyroid cancer patients exposed to the same dose of genotoxic agent.
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Conclusion & Impact:Conclusion: Our results demonstrate that applied therapeutic clinical dose does not show cytogenetic abnormalities risks of the early period in patients.I-131 treatment is a good option for the treatment of thyroid cancer,but also we recommend that physicians should perform long term follow-up examinations for IR exposed patients and prevent possible complications.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Domain Parameters

Abstract

Objective: Thyroid cancer is among the most common endocrine malignancies. Initial management consists surgery and ablation. I-131,which is used to damage surgically unremoved thyroid tissue or treat metastases, is a source for ionizing radiation (IR), also generates potential mutagenic and carcinogenic effects.The purpose of research is to investigate the damage on chromosomes at the I-131 treatment of thyroid cancer patients exposed to the same dose of genotoxic agent. Methods: Peripheral blood of 20 patients and 20 healthy control individuals were used in study. Materials were collected from patients before the I-131 treatment and three times on the 15th day, the first and second month after the I-131 treatment. All chromosome abnormalities, spontaneous chromosomal breakages, and sister chromatid exchange (SCE) were analyzed by cytogenetic methods in the samples. Results: The results obtained from peripheral blood of patiens who received ablation therapy revealed no significant increase for chromosome breakages, chromosome abnormalities, and SCE. Karyotyped metaphase spreads showed none of the structural and numerical chromosome abnormalities.The results of chromosome breakages and SCE have been statistically assessed by Aspin Welch test and did not differ from the control group. The t values of this variability were found to be -1.001,-1.654, respectively, and p>0.05. Conclusion: Our results demonstrate that applied therapeutic clinical dose does not show cytogenetic abnormalities risks of the early period in patients.I-131 treatment is a good option for the treatment of thyroid cancer,but also we recommend that physicians should perform long term follow-up examinations for IR exposed patients and prevent possible complications.

Özet

Amaç: Tiroid kanseri, endokrin sistemin en sık görülen kötü huylu tümörleri arasındadır. Tedavisinde cerrahi ve iyi diferansiye tiroid kanserlerinde risk grubuna göre iyot-131 (I-131) ablasyonu uygulanmaktadır. Cerrahi yöntemle tümüyle çıkarılamayan tiroid dokusunu harap etmek veya metastazların tedavisi için kullanılan I-131, iyonize edici radyasyona (IR) sahip olup, potansiyel mutajenik ve karsinojenik etkiler oluşturabilmektedir. Amacımız; aynı dozda genotoksik ajana maruz kalmış tiroid kanserli hastalarda I-131 tedavisinin kromozomlar üzerinde oluşturduğu hasarı araştırmaktır. Yöntemler: Yirmi hastanın ve kontrol olarak 20 sağlıklı bireyin perifer kanları çalışma materyali olarak kullanılmıştır. Hastalardan I-131 tedavisi öncesi bir sefer, tedavi bittikten sonra 15. gün, 1. ay ve 2. ay olmak üç sefer kan alınmıştır. Örneklerde meydana gelen tüm kromozom anomalileri, spontan kromozom kırıkları ve kardeş kromatid değişimi (KKD) sitogenetik yöntemlerle analiz edilmiştir. Bulgular: Ablasyon tedavisi alan hastaların perifer kanlarından elde ettiğimiz sonuçlar değerlendirildiğinde, çalışmamızda kromozom kırıkları, kromozom anomalisi ve KKD için anlamlı bir artış gözlenmemiştir. Olguların karyotiplenen metafaz sahalarında sayısal ve yapısal açıdan kromozom anomalisi gözlenmemiştir. İstatistiksel olarak Aspin Welch test ile değerlendirilen kromozom kırıkları ve KKD sonuçları kontrol grubuna oranla değişkenlik göstermemiştir. Bu değişkenliğin t değerleri sırasıyla -1,001, -1,654 ve p>0,05 olmak üzere anlamlı bulunamamıştır. Sonuç: Bulgularımız uygulanan bu terapötik dozda hastaların erken dönemde gözlenebilecek sitogenetik anomali risklerini içermediğini göstermektedir. I-131 kullanımının tiroid kanser tedavisinde iyi bir seçenek olduğu, fakat tedavi sırasında hastaların IR maruziyeti dikkate alındığında, uzun süre takip edilmesi ve olası komplikasyonların önlenmesi için gerekli kontrollerin hekim tarafından yapılmasını önermekteyiz.

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Cite This Article

ÖDEN, S., ATASOY, S., DEVİREN, A., DEMİR, M. (2019). Cytogenetic Studies of Chromosome Abnormalities in Thyroid Cancer Patients Before and After Iodine-131 Treatment. Bezmiâlem Science, Cilt: 7 - Sayı: 2, 118–123. https://ajindex.com/articles/184128

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