Soraya Emamgholizadeh Minaei, Hossein Mozdarani , Seyed Mahmoud Reza Aghamiri , Morteza Motazakker , Mohsen Mansouri ,
Volume 72, Issue 8 (November 2014)
Abstract
Background: Radiotherapy can cause DNA damage in normal cells, misrepaired or unrepaired double strand breaks in DNA lead to chromosomal breaks. As a result patient experience early and late effects in normal tissue during and after radiotherapy. Cytogenetic techniques can be used as a cancer predictive assay because there is an association between chromosome abnormalities and the risk of developing cancer. Also it can assess patient's complications during the therapy. The aim of the present study was evaluation of the cytogenetic alteration in peripheral blood lymphocytes of esophageal cancer patients treated with radiotherapy.
Methods: The present study is an experimental and prospective research. It was done at radiotherapy department at Omid Center in Urmia from January to December 2012. Blood samples were obtained from 15 esophageal cancer patients, before (0 Gy), during (21.6 Gy), and after radiotherapy treatment (43.2 Gy). Blood samples were cultured in RPMI-1640 complete medium containing 1% phytohaemagglutinin and incubated in a CO2 incubator. Cytochalasin-B was added to the cultures at a final concentration of 5 µg/ml. Finally, harvesting, slide making, and analysis were performed according to standard procedures.
Results: This study consisted of 15 patients, including 7 men and 8 women from 55 to 84 years old (70.07±11.548). Results indicate that, in the middle of treatment the average frequency of micronuclei increased significantly compared with their concurrent pre-treatment samples (greater than four-fold). Also, an increase in chromosome damage (MN frequency) proportional increasing radiation doses at the end of treatment was observed (P=0.001).
Conclusion: Increasing in the MN frequency in the second and third stages is due to radiation effects. Thus, the use of the MN technique for assessing of the side effects in patients during the therapy is very helpful. Moreover, MN assay can be used as a predictive assay for detecting individuals (patient or healthy) with intrinsic radiosensitivity.
Mohammad Parsa Mahjoub , Naser Kechuian, Mohammad Haji Aghajani , Hossein Aghamiri , Ainaz Samadi, Fateme Omidi ,
Volume 82, Issue 7 (October 2024)
Abstract
Background: Cardiovascular surgery is sometimes associated with brain consequences such as cognitive disorders. Diagnosis of cognitive disorders risk factors in cardiovascular patients is important for increasing patient satisfaction and success after (CABG). In the present study, the frequency of cognitive disorders in cardiovascular patients and its effective factors were investigated.
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Methods: In the current cross-sectional study that was conducted from September 2019 to the February 2022, 60 cardiovascular patients undergoing CABG surgery were selected by convenience sampling method. Demographic, clinical, and intraoperative information was recorded for participants in the data collection form. Mini–Mental State Examination quesionary.
Results: The results showed that 15% of participants had cognitive impairment. Gender and age were the actual variables on the incidence of cognitive disorders after CABG surgery. The frequency of cognitive disorders in women was 14 times higher than men and 6.5 times higher in the elderly. Elderely population was considered as 65 years old or above. The clinical variables such as blood transfusion under surgery and ejection fraction<40% were effective factor for incidence of cognitive disorders in cardiovascular patients.
Conclusion: The CABG surgery may be associated with cognitive disorders in cardiovascular patients, which is more common in women and the elderly. Further studies are recommended to confirm the results of the present study and identify the related risk factors.
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