196 results on '"Tavallai A"'
Search Results
2. The Representation of Iran (Persia) in Young Children's Picture Books in North America
- Author
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Mahshid Tavallai
- Abstract
There are a few empirical studies that examine the portrayal of the Middle East and its people in young children's picture books. Many of these books depict Muslim life and celebrations without delving into the specificities of each Middle Eastern country. This study, which focuses on Iran as a non-Arab Muslim majority Middle Eastern country, investigates how Iran and its diverse cultures are represented in children's picture books published in North America. The analysis was conducted on a sample of 27 picture books written in English between 2000 and 2021, targeting children aged three to nine. The findings reveal that a significant number of these books revolve around Nowruz celebrations (the Persian New Year) or ancient Persia, often presented through popular folktales. These findings underscore the need for books that depict the contemporary lives of Iranians, both within and outside the country, through narratives and illustrations.
- Published
- 2023
3. Religious Diversity at School: Educating for New Pluralistic Contexts by Ednan Aslan and Marcia Hermansen (review)
- Author
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Tavallai, Mahshid
- Published
- 2024
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4. Current status of artificial intelligence technologies in pituitary adenoma surgery: a scoping review
- Author
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Maroufi, Seyed Farzad, Doğruel, Yücel, Pour-Rashidi, Ahmad, Kohli, Gurkirat S., Parker, Colson Tomberlin, Uchida, Tatsuya, Asfour, Mohamed Z., Martin, Clara, Nizzola, Mariagrazia, De Bonis, Alessandro, Tawfik-Helika, Mamdouh, Tavallai, Amin, Cohen-Gadol, Aaron A., and Palmisciano, Paolo
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- 2024
- Full Text
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5. The Representation of Iran (Persia) in Young Children’s Picture Books in North America
- Author
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Tavallai, Mahshid
- Published
- 2023
- Full Text
- View/download PDF
6. Pulmonary Valvar Stenosis from the Fetal to the Infantile Period: A Case Report
- Author
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Mohammad Reza Khalilian, Hassan Zamani, Soraya Salehgargari, Hossein Tavallai, Mohammad Ghazavi, and Hooman Daryoshi
- Subjects
fetal ,infantile ,pulmonary stenosis ,Pediatrics ,RJ1-570 - Abstract
Background: Fetal echocardiography is a useful tool for diagnosing fetuses with congenital heart diseases, and it is best to be conducted between 17 and 19 weeks of gestational age. However, fetal echocardiography can be performed at other ages of pregnancy for a variety of reasons. This study describes one fetus with pulmonary valvar stenosis based on the fetal echocardiogram in the uterus.Case report: This study describes one fetus with pulmonary valve stenosis based on the fetal echocardiogram in the uterus. We referred the family to a hospital with neonatal intensive care unit admission. After birth, we followed her serially and confirmed pulmonary valve stenosis, which increased in severity after two months. Subsequently, we performed a percutaneous balloon valvuloplasty.Conclusion: Our findings showed that some cardiac defects could vary in severity during pregnancy and post-birth. There was clear evidence that pulmonary valvar stenosis was a lesion developed during the fetus's lifetime to tolerate the lesion. Although pulmonary stenosis progressed in the early months after birth, it was easily treated through balloon angioplasty.
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- 2022
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7. Isolated Left Subclavian Artery, Multiple Ventricular Septal Defects, and Pulmonary Hypertension in a Child: A Case Report
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Khalilian, Mohammad Reza, Hekmat, Manouchehr, Sadr, Saeed, Tavallai-Zavvareh, Abdolhossein, and Tahouri, Tahmineh
- Published
- 2024
- Full Text
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8. Acute Myocardits Due to Scorpion Sting in a 9-Year-Old Girl
- Author
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Mohammad Reza Khalilian, Seyyed Abdolhossein Tavallai Zavareh, Ali Reza Norouzi, Mohammad Ghazavi, and Ali Ahmad Goudarzi
- Subjects
Myocardits ,Stng ,Scorpion ,Medicine - Abstract
A 9-year-old girl with signs and symptoms of acute toxic myocarditis and cardiogenic shock with elevated cardiac enzymes was admitted to the Critical Care Unit (CCU) of our hospital with an ejection fraction of 25%. The patient was managed with supportive care and the administration of polyvalent antivenom and inotropes, and after 8 days, she was discharged without any complication with normal ejection fraction. Toxic myocarditis can be a result of scorpion envenomation. After two months of follow-up, the patient recovered completely and medications were discontinued.
- Published
- 2021
- Full Text
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9. Validity and reliability of the Cohen 10-item Perceived Stress Scale in patients with chronic headache: Persian version
- Author
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Khalili, Robabe, Sirati nir, Masoud, Ebadi, Abbas, Tavallai, Abbas, and Habibi, Mehdi
- Published
- 2017
- Full Text
- View/download PDF
10. Vailation of the Persian Version of the Staff Observation Aggression Scale-Revised in Psychiatric Patients
- Author
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Masoud Siratinir, Muhammad Gooshi, Abbas Ebadi, Abbas Tavallai, and Abolfazl Mohammadi
- Subjects
Aggression inpatients ,Psychiatric wards ,SOAS-R ,Reliability ,Validity ,Medicine (General) ,R5-920 ,General works ,R5-130.5 - Abstract
Introduction: In psychiatric settings, aggressive events frequently occur during therapy. These events, which tend to threaten the safety of the patient and the staff, can lead to the enforcement of compulsory measures such as the isolation or restraining of the patient. The use of a proper standard scale to register aggression can facilitate the assessment and control of aggression and help reduce its frequency and severity. The review of literature revealed only a few studies conducted on aggressive behavior in hospitalized psychiatric patients in Iran and showed that the lack of a reliable and valid observation scale for registering in psychiatric settings. The aim of this study is to evaluate the validity and reliability of the Staff Observation Aggression Scale—Revised (SOAS-R). Methods: This psychometric study of the scale was conducted to determine the validity and reliability of the SOAS-R. The validation of the scale was assessed on the basis of 319 aggressive events in the psychiatric wards of the Baqiyatallah and Roozbeh hospitals. Convenience sampling was used for subject selection. Psychometric properties of SOAS-R were studied in two stages. First, the standard scale was translated according to the International Quality of Life Assessment (IQOLA) translation methodology. The face validity, content , and construct validity of the translated version were then determined. The construct validity of the scale was assessed by comparing the known groups. Results: The internal consistency of the whole scale was 0.99. The intra-class correlation coefficients (ICC) were 0.852–0.995 while kappa coefficient was 0.43 to 0.65 for the different aspects of the SOAS-R. The validity of the scale was concurrently assessed by using the Visual Analogue Scale (VAS), with a Spearman-Brown correlation coefficient of 0.90. Conclusion: These results showed a favourable validity and reliability for the Persian version of the SOAS-R for the assessment of aggressive behaviour in psychiatric patients.
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- 2017
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11. Supplementary Figures and Tables from Expressed Gene Fusions as Frequent Drivers of Poor Outcomes in Hormone Receptor–Positive Breast Cancer
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Matissek, Karina J., primary, Onozato, Maristela L., primary, Sun, Sheng, primary, Zheng, Zongli, primary, Schultz, Andrew, primary, Lee, Jesse, primary, Patel, Kristofer, primary, Jerevall, Piiha-Lotta, primary, Saladi, Srinivas Vinod, primary, Macleay, Allison, primary, Tavallai, Mehrad, primary, Badovinac-Crnjevic, Tanja, primary, Barrios, Carlos, primary, Beşe, Nuran, primary, Chan, Arlene, primary, Chavarri-Guerra, Yanin, primary, Debiasi, Marcio, primary, Demirdögen, Elif, primary, Egeli, Ünal, primary, Gökgöz, Sahsuvar, primary, Gomez, Henry, primary, Liedke, Pedro, primary, Tasdelen, Ismet, primary, Tolunay, Sahsine, primary, Werutsky, Gustavo, primary, St. Louis, Jessica, primary, Horick, Nora, primary, Finkelstein, Dianne M., primary, Le, Long Phi, primary, Bardia, Aditya, primary, Goss, Paul E., primary, Sgroi, Dennis C., primary, Iafrate, A. John, primary, and Ellisen, Leif W., primary
- Published
- 2023
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12. Supplementary Figures and Tables from Expressed Gene Fusions as Frequent Drivers of Poor Outcomes in Hormone Receptor–Positive Breast Cancer
- Author
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Leif W. Ellisen, A. John Iafrate, Dennis C. Sgroi, Paul E. Goss, Aditya Bardia, Long Phi Le, Dianne M. Finkelstein, Nora Horick, Jessica St. Louis, Gustavo Werutsky, Sahsine Tolunay, Ismet Tasdelen, Pedro Liedke, Henry Gomez, Sahsuvar Gökgöz, Ünal Egeli, Elif Demirdögen, Marcio Debiasi, Yanin Chavarri-Guerra, Arlene Chan, Nuran Beşe, Carlos Barrios, Tanja Badovinac-Crnjevic, Mehrad Tavallai, Allison Macleay, Srinivas Vinod Saladi, Piiha-Lotta Jerevall, Kristofer Patel, Jesse Lee, Andrew Schultz, Zongli Zheng, Sheng Sun, Maristela L. Onozato, and Karina J. Matissek
- Abstract
Supplementary Figure S1-S6 and Supplementary Tables S1-S8
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- 2023
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13. Hepcidin and HFE Polymorphisms and Ferritin Level in β-Thalassemia Major
- Author
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Kiavash Fekri, Negar Asle Rasouli, Seyyed Abdolhossein Tavallai Zavareh, Milad Jalil, Fahimeh Moradi, Maryam Hosseinpour, and Hossein Teimori
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Ferritin ,Hepcidin ,HFE ,Iron overload ,Thalassemia ,Neoplasms. Tumors. Oncology. Including cancer and carcinogens ,RC254-282 - Abstract
Background: Thalassemia patients need repeated transfusion that lead to increased blood ferritin level and iron overload in the heart and liver. Because the roles of hepcidin antimicrobial peptide (HAMP) and hemocromatosis protein (HFE) in iron metabolism have been confirmed, this study investigated the effects of these gene's polymorphisms on blood ferritin levels and iron overload in the heart and liver in patients with beta thalassemia major Materials and Methods: This cross-sectional study was conducted on 91 patients referring to the Hajar Hospital in Shahrekord, Iran in 2015. After the blood samples were collected, the ferritin levels were measured, DNA was extracted from the blood cells, and the types of polymorphisms were determined using PCR-RFLP. Data of MRI T2* in the heart and liver were drawn from the patients' medical files. Data analysis was conducted by t-test, chi-square test, Fisher's exact test, and Pearson correlation coefficient. Results: There was no significant correlation between blood ferritin level and c.-582 A>G polymorphisms of hepcidin gene (p=0.58), and H63D of HFE gene (p=0.818). In addition, there was no significant association between the polymorphisms and heart and liver MRI, but there was a significant association between blood ferritin level and qualitative heart and liver MRI (r=-0.34, p=0.035 and r=-0.001, p=0.609, respectively). Conclusion: In patients with β-thalassemia major, the presence of c.-582A>G HAMP and H63D HFE polymorphisms is not effective on blood ferritin level and iron overload in the heart and liver in the studied region.
- Published
- 2019
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14. Using Tumor-Informed Circulating Tumor DNA (ctDNA)-Based Testing for Patients with Anal Squamous Cell Carcinoma
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Azzi, Georges, primary, Tavallai, Mehrad, additional, Aushev, Vasily N, additional, Koyen Malashevich, Allyson, additional, Botta, Gregory P, additional, Tejani, Mohamedtaki A, additional, Hanna, Diana, additional, Krinshpun, Shifra, additional, Malhotra, Meenakshi, additional, Jurdi, Adham, additional, Aleshin, Alexey, additional, and Kasi, Pashtoon M, additional
- Published
- 2022
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15. The role of cell signalling in the crosstalk between autophagy and apoptosis
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Booth, Laurence A., Tavallai, Seyedmehrad, Hamed, Hossein A., Cruickshanks, Nichola, and Dent, Paul
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- 2014
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16. How can molecular abnormalities influence our clinical approach
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Wei, W, Giulia, F, Luffer, S, Kumar, R, Wu, B, Tavallai, M, Bekele, R T, and Birrer, M J
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- 2017
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17. Requirement of registering in the correctness of real estate transactions.
- Author
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Tavallai, Reza Tavakoli, Shakri, Belal, Jalali, Mustafa, and Moghadam, Mostafa Rafsanjani
- Abstract
Some of the harms of real estate and land transactions relying on property ownership and normal documents are: land grabbing, shrinking of agricultural land, threat to food security, weakness in managing crises and natural disasters, increase in administrative and judicial corruption, occurrence of fraud, bribery, forgery and etc. In order to solve these harms, the theory of real estate and land registration in the registration system has been proposed. Regarding this theory, there are two challenges of "the legitimacy of the system" and "the monopolization of real estate and land transactions in the system". In this essay, with a descriptive and analytical method, the belief has been strengthened that based on jurisprudential rules and principles, the registration system in question is legitimate and in the assumption that three conditions are met: the existence of a system that leads to certainty of ownership, the accusation of the market and the disruption of people's livelihood in the assumption of referring to the Amarat, real estate and land transactions based on the Amarat of property are void, and in order to accurately identify the owners, the buyer and seller should only refer to the registration system. Therefore, it is necessary to make the transaction of real estate and land according to the registration system become a law, and in the event of a conflict, this system takes precedence over all the property Amarat. [ABSTRACT FROM AUTHOR]
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- 2023
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18. Application of a Head-Up Tilt Table Test in Differentiation Between Epilepsy and Syncope in Children
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Meisam Babaei, Mohammad Mehdi Nasehi, Mohammad Reza Khalilian, Maryam Rasoulinezhad, Hossein Tavallai, and Fargol Farahmandi
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Pediatrics, Perinatology and Child Health - Abstract
Background: Distinguishing between seizure and neurally mediated syncope is challenging because of similar consequences and medical history. A head-up tilt test (HUTT) is a non-invasive, simple, and easy test to distinguish between epilepsy and syncope besides detailed history taking. Objectives: This study aimed to differentiate between epileptic events and reflex syncope (any different type of syncope) using the head-upright tilt test. Methods: We studied 59 patients (37 boys and 22 girls) between 4 to 18 years old (mean age, 10.5 ± 3.7 years) with a previous diagnosis of seizure who did not respond well to treatment. All patients underwent HUTT, and the test was positive in 26 patients. There were no significant differences in sex, age, provocative factors, associated syndrome, and family history between negative and positive groups. Results: There was a history of actual syncope in 26.9% of the positive tilt test group compared to 15.15% of the negative test group. Also, there was a positive family history of syncope in the positive tilt test group. Among 26 patients with a positive tilt test, 17 were diagnosed with vasovagal syncope (VVS) vasodepressor type and 9 with mixed type. Antiepileptic drugs were tapered for patients diagnosed with VVS, and they did not show any seizures after 18 ± 6 months of follow-up. Overemphasizing positive family history and inattention to history taking are 2 crucial factors leading to the misdiagnosis of epilepsy. Conclusions: Our study showed that HUTT is a non-invasive test that can be useful, especially for early and proper diagnosis in children with refractory epilepsy.
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- 2022
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19. The Effect of Physical Illnesses on the Deprivation of Child Custody
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S.S. Mosavi Moqaddam, A. Tavallai, and H. Aboui Mehrizi
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child custody ,physical illness ,infectious illness ,ailmen ,Islamic law ,KBP1-4860 - Abstract
The ultimate goal of child custody is the realization of children's benefits and to keep them out of harm.Therefore, if the parents lack base qualifications and abilities, the child custody will be deprived of them. Also in the article 1173 of the Civil Code, child custody deprivation from its holder is considered. Since one of the qualifications of child's supervisor is his (her) physical health, this paper, by analysis of jurists' opinions, is going to examine the impact of illnesses on child custody. It further surveys that if the guardian has an infectious illness, endangering child's physical health, or he (she) is not able to keep the child due to an incurable disease, his (her) custody will be void. But if the guardian be able to prevent the spread of illness to the child or does the affairs resulting the maintenance and upbringing of the child through an agent for example, child custody will be constant according to the legal rule.
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- 2014
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20. The Influence of Teaching Program of Stress Management and Communication Skills on Improvement of Mental Health of Nurses and Hospital Staff: An Experimental Study
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A Fathi Ashtiani, H Pirzadi, M Shokoohi-Yekta, and SA Tavallai
- Subjects
stress ,communication skills ,mental health ,nurses ,hospital personnel ,Nursing ,RT1-120 - Abstract
Abstract Background & Aim: The occupational nature of health profession is such that employees in these occupations are exposed to various stressors which threaten their mental health. We aimed to investigate the influence of stress management and communication skills training on the improvement of mental health of nurses and hospital staff. Material & Methods: It was a quasi-experimental study. The sample included 32 nurses and other hospital staff of Baqiyatallah hospital in Tehran that were first recruited by voluntary sampling and then were randomly assigned to experimental and control groups. Stress management and communication skills training program based on the cognitive-behavioral theory was performed during a 16 hours period. Data was collected by Depression Anxiety Stress Scale (DASS) before and after the intervention and was analyzed by descriptive statistics and analysis of covariance using SPSS-PC (v. 18). Results: The results of the analysis of covariance indicated that the intervention has significantly reduced stress and anxiety in the experimental group compared to the control group (P< 0/01). However, no significant difference was seen in terms of depression (P=0/861). Conclusion: By reducing symptoms of stress and anxiety, stress management and communication skills training based on cognitive-behavior theory can improve mental health of nurses and hospital staff. Accordingly, using this program by health managers to improve mental health of their staff is recommended.
- Published
- 2014
21. 90P Feasibility of using tumor-informed circulating tumor DNA (ctDNA)-based testing for patients with anal squamous cell carcinoma
- Author
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Azzi, G., primary, Tavallai, M., additional, Aushev, V., additional, Koyen Malashevich, A.E., additional, Botta, G., additional, Tejani, M., additional, Hanna, D.L., additional, Krinshpun, S., additional, Malhotra, M., additional, Olshan, P., additional, Jurdi, A., additional, Aleshin, A., additional, and Kasi, P.M., additional
- Published
- 2022
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22. Application of a Head-Up Tilt Table Test in Differentiation Between Epilepsy and Syncope in Children
- Author
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Babaei, Meisam, primary, Nasehi, Mohammad Mehdi, additional, Khalilian, Mohammad Reza, additional, Rasoulinezhad, Maryam, additional, Tavallai, Hossein, additional, and Farahmandi, Fargol, additional
- Published
- 2022
- Full Text
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23. Using Tumor-Informed Circulating Tumor DNA (ctDNA)-Based Testing for Patients with Anal Squamous Cell Carcinoma
- Author
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Georges Azzi, Mehrad Tavallai, Vasily N Aushev, Allyson Koyen Malashevich, Gregory P Botta, Mohamedtaki A Tejani, Diana Hanna, Shifra Krinshpun, Meenakshi Malhotra, Adham Jurdi, Alexey Aleshin, and Pashtoon M Kasi
- Subjects
Cancer Research ,Oncology - Abstract
Background Anal squamous cell carcinoma (SCCA) is an uncommon malignancy with a rising incidence that has a high cure rate in its early stages. There is an unmet need for a reliable method to monitor response to treatment and assist in surveillance. Circulating tumor DNA (ctDNA) testing has shown great promise in other solid tumors for monitoring disease progression and detecting relapse in real time. This study aimed to determine the feasibility and use of personalized and tumor-informed ctDNA testing in SCCA. Patients and Methods We analyzed real-world data from 251 patients (817 plasma samples) with stages I-IV SCCA, collected between 11/5/19 and 5/31/22. The tumor genomic landscape and feasibility of ctDNA testing was examined for all patients. The prognostic value of longitudinal ctDNA testing was assessed in patients with clinical follow-up (N = 37). Results Whole-exome sequencing analysis revealed PIK3CA as the most commonly mutated gene, and no associations between mutations and stage. Anytime ctDNA positivity and higher ctDNA levels (MTM/mL) were associated with metastatic disease (P = .004). For 37 patients with clinical follow-up, median follow-up time was 21.0 months (range: 4.1-67.3) post-diagnosis. For patients with stages I-III disease, anytime ctDNA-positivity after definitive treatment was associated with reduced DFS (HR: 28.0; P = .005). Conclusions Our study demonstrates the feasibility of personalized and tumor-informed ctDNA testing as an adjunctive tool in patients with SCCA as well as potential use for detection of molecular/minuteimal residual disease, and relapse during surveillance. Prospective studies are needed to better evaluate the use of ctDNA testing in this indication.
- Published
- 2022
24. Using Tumor-Informed Circulating Tumor DNA (ctDNA)-Based Testing for Patients with Anal Squamous Cell Carcinoma.
- Author
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Azzi, Georges, Tavallai, Mehrad, Aushev, Vasily N, Malashevich, Allyson Koyen, Botta, Gregory P, Tejani, Mohamedtaki A, Hanna, Diana, Krinshpun, Shifra, Malhotra, Meenakshi, Jurdi, Adham, Aleshin, Alexey, and Kasi, Pashtoon M
- Subjects
EPITHELIAL cell tumors ,DISEASE progression ,SEQUENCE analysis ,GENETIC mutation ,CANCER relapse ,METASTASIS ,ANAL tumors ,GENES ,EXTRACELLULAR space ,TUMOR markers ,NUCLEIC acids - Abstract
Background Anal squamous cell carcinoma (SCCA) is an uncommon malignancy with a rising incidence that has a high cure rate in its early stages. There is an unmet need for a reliable method to monitor response to treatment and assist in surveillance. Circulating tumor DNA (ctDNA) testing has shown great promise in other solid tumors for monitoring disease progression and detecting relapse in real time. This study aimed to determine the feasibility and use of personalized and tumor-informed ctDNA testing in SCCA. Patients and Methods We analyzed real-world data from 251 patients (817 plasma samples) with stages I-IV SCCA, collected between 11/5/19 and 5/31/22. The tumor genomic landscape and feasibility of ctDNA testing was examined for all patients. The prognostic value of longitudinal ctDNA testing was assessed in patients with clinical follow-up (N = 37). Results Whole-exome sequencing analysis revealed PIK3CA as the most commonly mutated gene, and no associations between mutations and stage. Anytime ctDNA positivity and higher ctDNA levels (MTM/mL) were associated with metastatic disease (P =. 004). For 37 patients with clinical follow-up, median follow-up time was 21.0 months (range: 4.1-67.3) post-diagnosis. For patients with stages I-III disease, anytime ctDNA-positivity after definitive treatment was associated with reduced DFS (HR: 28.0; P =. 005). Conclusions Our study demonstrates the feasibility of personalized and tumor-informed ctDNA testing as an adjunctive tool in patients with SCCA as well as potential use for detection of molecular/minuteimal residual disease, and relapse during surveillance. Prospective studies are needed to better evaluate the use of ctDNA testing in this indication. [ABSTRACT FROM AUTHOR]
- Published
- 2023
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25. The Contribution of Muslim Geographers to the Development of the Subject
- Author
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POURAHMAD, AHMAD and TAVALLAI, SIMIN
- Published
- 2004
26. Circulating tumor DNA-based molecular residual disease detection and recurrence monitoring in patients with advanced or metastatic anal squamous cell carcinoma.
- Author
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Azzi, Georges, primary, Tavallai, Mehrad, additional, Botta, Gregory P., additional, Tejani, Mohamedtaki Abdulaziz, additional, Hanna, Diana L., additional, Jurdi, Adham Adel, additional, Budde, Griffin, additional, Krinshpun, Shifra, additional, Maninder, Minu, additional, Aushev, Vasily N., additional, Olshan, Perry, additional, Billings, Paul R., additional, Aleshin, Alexey, additional, and Kasi, Pashtoon Murtaza, additional
- Published
- 2022
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27. The Impact of Climate & Weather upon Tourism with Particular emphasis on snow Skiing development in Iran
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simin tavallai
- Subjects
Management. Industrial management ,HD28-70 ,Management of special enterprises ,HD62.2-62.8 - Abstract
Tourist actrvrties are not distributed homogeneously in space; rather, certain activities are concentrated in specific points or areas. Numerous factors account for this pattern. Climate is one of the geophysical factors that make up geographical space, contributing to the environmental conditions that facilitate or hinder human settlement in general and tourism activities in particular. Therefore, climate is an important criterion for locating tourism centers, helping to determine how an area is to be used. It has been argued that local climatology and succession of different weather types influence the location of resorts, the calendar of tourist activities, the use and efficiency of the infrastructure, and the return on investments. The impact of climate ad well as climatic changes upon Snow skiing is being pursued as another objective of this study. As such, evaluation of Ski-resort potentials in Iran was conducted as an applied nature of this study. This study suggests that optimum areas regarding snow skiing are basically Elborz ranges between Tehran and Mazandran and to a lesser extent Charmahal province nested in Zagrous mountain.
- Published
- 2004
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28. 90P Feasibility of using tumor-informed circulating tumor DNA (ctDNA)-based testing for patients with anal squamous cell carcinoma
- Author
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G. Azzi, M. Tavallai, V. Aushev, A.E. Koyen Malashevich, G. Botta, M. Tejani, D.L. Hanna, S. Krinshpun, M. Malhotra, P. Olshan, A. Jurdi, A. Aleshin, and P.M. Kasi
- Subjects
Oncology ,Hematology - Published
- 2022
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29. Acute Myocarditis Due to Scorpion Sting in a 9-year-old Girl
- Author
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Khalilian, Mohammad Reza, primary, Tavallai Zavareh, Seyyed Abdolhossein, additional, Norouzi, Ali Reza, additional, Ghazavi, Mohammad, additional, and Goudarzi, Ali Ahmad, additional
- Published
- 2021
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30. 1415P Performance of a tumor-informed circulating tumor DNA assay from over 250 patients with over 600 plasma time points in esophageal and gastric cancer
- Author
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Huffman, B.M., primary, Budde, G., additional, Chao, J., additional, Dayyani, F., additional, Hanna, D., additional, Botta, G., additional, Krinshpun, S., additional, Sharma, S., additional, Aushev, V., additional, Farmer, T., additional, Pela, H., additional, Tavallai, M., additional, Goodman, M., additional, Baker, K., additional, Drummond, B., additional, Aleshin, A., additional, Kasi, P.M., additional, and Klempner, S.J., additional
- Published
- 2021
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31. Some aspects of Tehran's ecological footprint
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Tavallai, Simin and Sasanpour, Farzaneh
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Ecological footprint ,Consumer goods ,Sustainable development ,Dwellings ,Housing ,Environmental issues - Abstract
Ecological footprint is a way of measuring urban and regional ecological impacts and guides communities toward sustainability. This Technique measures how much land is required to supply our living and lifestyle including food, housing, energy/fuel, transport, and consumer goods and services along with their corresponding energy requirements. This study aims to quantify Tehran's ecological impacts through ecological foot prints technique. it suggests that Tehran's metropolitan per capita ecological footprint corresponding with energy in all of the consumption fields is close to 2.9 hectares. This means that taking into consideration the current consumption pattern, Tehran metropolitan require 22 million hectares in order to meet the relevant energy requirements. Tehran's total per capita ecological footprint is 3.79 hectares. This is corresponded with 28 482 098 hectares. The most conspicuous figure is associated with goods and services sector (2.66). In fact, Tehran's citizens are utilizing nearly 2.5 of their actual share of their ecological capacities and thus abusing their hinterlands. Keywords: Tehran, Ecological footprint, Service sector, Urban hinterland, Sustainability, 1. Introduction Most changes in the ecosystem are a result of human land-use practices, including agriculture and industrialization. Urbanization is unique in this regard both in terms of the intensity [...]
- Published
- 2009
32. Evaluation of Informative SNPs in Iranian Azeri Population
- Author
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Mahmood Tavallai, Sayed Mostafa Hosseini, Ali Mohammadi, and Maryam Ramezani
- Subjects
Genetics ,Loss of heterozygosity ,education.field_of_study ,DNA profiling ,Informative snps ,Population ,Microsatellite ,Single-nucleotide polymorphism ,Amplicon ,Biology ,education ,Allele frequency ,Biotechnology - Abstract
Introduction: Two of the most important tests used in the forensic genetics are DNA fingerprinting and paternity testing. Short tandem repeats (STRs) are very frequently used in identification. Nevertheless, there are limitations on the use of these markers in identifying badly degraded DNA. In these cases, single nucleotide polymorphisms (SNPs) are used because of their shorter amplicon lengths. Recognition of SNPs of high informativeness is a vital step in preparing a list of suitable SNPs. The present research aimed to determine the maximum informative SNPs to be used for identification in Iranian Azari population. Materials and Methods: Four SNPs developed by the SNPforID Consortium were selected. The allele frequencies of the SNPs were obtained using HRM Analysis on DNA samples taken from 100 different individuals. The SNPs that satisfied the Hardy-Weinberg equilibrium and had heterozygosity of higher than 0.50 and equal allele frequency were selected as SNPs of the maximum informativeness. Results: Two polymorphisms (Rs2107612 and Rs1355366) had equal allele frequencies and heterozygosity of higher than 50 percent. Therefore, these 2 polymorphisms are considered highly informative among the studied Azeri population and can be considered in preparing a list of suitable SNPs. Conclusions: Results of the present study can be used along with other SNPs to increase the identification power for some samples. It can also help preparing a database of suitable SNPs to be used for identification in Azeri population in Iran.
- Published
- 2018
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33. Genetic Analysis and Genealogy of Ancient Bone Samples
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Mahmood Tavallai, Zeinab Salehi, Hasan Bahmani, Atefeh Ghotbi, Ali Mohammadi, Sajad Habibi, Peyman Zargari, Raheleh Tabkhi, Somaieh Chavoshi, Mostafa Khafaei, Maryam Ramezani, and Fatemeh Ghotbi
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0301 basic medicine ,03 medical and health sciences ,Mitochondrial DNA ,030104 developmental biology ,Ancient DNA ,Genetic marker ,Evolutionary biology ,Genetic genealogy ,Human genome ,Biology ,Genetic analysis ,Haplogroup ,Hypervariable region - Abstract
The analysis of ancient DNA (aDNA) can inspire both the public and the scientific community. Knowing about ancient human genomes and comparing them with those of modern humans can give us a new perspective on evolution and the migration of humans over time. aDNA is DNA isolated from ancient specimens. It can also be loosely described as any DNA recovered from biological samples that have not been preserved specifically for later DNA analysis. Examples include DNA recovered from archaeological and historical skeletal material, mummified tissues, archival collections of non-frozen medical specimens, preserved plant remains, ice and permafrost cores, Holocene plankton in marine and lake sediments, and so on. Due to considerable anthropological, archaeological, and public interest, human remains receive ample attention from the DNA community. Genetic genealogy is the use of DNA testing in combination with traditional genealogical methods to infer relationships between individuals and to find ancestors. Genetic genealogy involves the use of genealogical DNA testing to determine the level and type of genetic relationship between individuals. DNA markers such as autosomal single nucleotide polymorphisms (SNPs), Y SNPs, and mitochondrial DNA (mtDNA) SNPs are used. By analyzing the sequence of mtDNA and the Y-chromosome, the path of human migration throughout history and the common ancestor of humans can be identified. mtDNA analysis is a field of research in genetics and molecular archaeology that is efficient in less than ideal conditions, such as with biologically degraded materials. The mtDNA molecule not only has a high copy number, but it can also be extracted from very decayed biological specimens. Its D-loop region is polymorphic, consisting of two hypervariable regions (HVI and HVII) with a large variety in different human populations. The analysis of such mtDNA regions using ancient excavated human bones will determine the genetic composition of human mtDNA known as haplogroups and can be used to identify ancient ethnic groups, trace descendants of ancestors, and follow man’s migration trails.
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- 2018
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34. Expressed Gene Fusions as Frequent Drivers of Poor Outcomes in Hormone Receptor–Positive Breast Cancer
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Jessica St. Louis, Sahsuvar Gokgoz, Paul E. Goss, Nuran Bese, Henry L. Gomez, Pedro Er Liedke, Nora Horick, Gustavo Werutsky, Piiha Lotta Jerevall, Karina J. Matissek, Leif W. Ellisen, Allison MacLeay, Dianne M. Finkelstein, Dennis C. Sgroi, Tanja Badovinac-Crnjevic, Ismet Tasdelen, Kristofer Patel, Zongli Zheng, Jesse Lee, Srinivas Vinod Saladi, Elif Demirdogen, A. John Iafrate, Unal Egeli, Maristela L. Onozato, Carlos H. Barrios, Mehrad Tavallai, Arlene Chan, Long P. Le, Aditya Bardia, Sheng Sun, Yanin Chavarri-Guerra, Sahsine Tolunay, Andrew Schultz, and Marcio Debiasi
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0301 basic medicine ,Regulation of gene expression ,business.industry ,Cancer ,medicine.disease ,AKT3 ,Fusion gene ,03 medical and health sciences ,030104 developmental biology ,0302 clinical medicine ,Breast cancer ,Oncology ,Hormone receptor ,030220 oncology & carcinogenesis ,medicine ,Cancer research ,Hormonal therapy ,business ,Estrogen receptor alpha - Abstract
We sought to uncover genetic drivers of hormone receptor–positive (HR+) breast cancer, using a targeted next-generation sequencing approach for detecting expressed gene rearrangements without prior knowledge of the fusion partners. We identified intergenic fusions involving driver genes, including PIK3CA, AKT3, RAF1, and ESR1, in 14% (24/173) of unselected patients with advanced HR+ breast cancer. FISH confirmed the corresponding chromosomal rearrangements in both primary and metastatic tumors. Expression of novel kinase fusions in nontransformed cells deregulates phosphoprotein signaling, cell proliferation, and survival in three-dimensional culture, whereas expression in HR+ breast cancer models modulates estrogen-dependent growth and confers hormonal therapy resistance in vitro and in vivo. Strikingly, shorter overall survival was observed in patients with rearrangement-positive versus rearrangement-negative tumors. Correspondingly, fusions were uncommon ( Significance: By using a powerful clinical molecular diagnostic assay, we identified expressed intergenic fusions as frequent contributors to treatment resistance and poor survival in advanced HR+ breast cancer. The prevalence and biological and prognostic significance of these alterations suggests that their detection may alter clinical management and bring to light new therapeutic opportunities. Cancer Discov; 8(3); 336–53. ©2017 AACR. See related commentary by Natrajan et al., p. 272. See related article by Liu et al., p. 354. This article is highlighted in the In This Issue feature, p. 253
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- 2018
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35. Comprehensive genomic profiling (CGP) of 275 male breast cancer (BC) tissue (TBx) and liquid (LBx) biopsies: Comparative analysis to a female cohort (FBC) and therapeutic considerations.
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Kadamkulam Syriac, Arun, primary, Clark, Allison, additional, Tavallai, Mehrad, additional, Jin, Dexter X., additional, Sokol, Ethan, additional, McGregor, Kimberly, additional, Ross, Jeffrey S., additional, Danziger, Natalie, additional, and Leone, Jose Pablo, additional
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- 2021
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36. Isolated Left Subclavian Artery, Multiple Ventricular Septal Defects and Pulmonary Hypertension In A Child: A Case Report
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Khalilian, Mohammadreza, primary, Hekmat, Manouchehr, additional, Sadr, Saeed, additional, Tavallai-Zavvareh, Abdolhossein, additional, and Tahouri, Tahmineh, additional
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- 2021
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37. Circulating tumor DNA-based molecular residual disease detection and recurrence monitoring in patients with advanced or metastatic anal squamous cell carcinoma
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Georges Azzi, Mehrad Tavallai, Gregory P. Botta, Mohamedtaki Abdulaziz Tejani, Diana L. Hanna, Adham Adel Jurdi, Griffin Budde, Shifra Krinshpun, Minu Maninder, Vasily N. Aushev, Perry Olshan, Paul R. Billings, Alexey Aleshin, and Pashtoon Murtaza Kasi
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Cancer Research ,Oncology - Abstract
6 Background: For patients with anal squamous cell carcinoma (ASCC), the current standard of care involves curative-intent definitive chemoradiation. For those that recur locally, salvage surgery maybe a consideration. ASCC, however, still lacks a non-invasive blood-based biomarker, which can be of value in this patient population for monitoring recurrence and/or response to immunotherapy later. Circulating tumor DNA (ctDNA) is a promising non-invasive tool to assess molecular residual disease (MRD) and recurrence in ASCC. Here, we evaluated real-world utility of ctDNA status to identify MRD and recurrence in ASCC patients across all stages. Methods: This is a retrospective analysis of patients with any stage ASCC receiving SOC or/and immunotherapy with immune checkpoint inhibitors. A personalized tumor-informed PCR/NGS-based assay (Signatera) was used for ctDNA detection, in the pre/on/post-treatment and surveillance setting. Results: In this study, plasma samples (n=105) were collected from 25 ASCC patients (13 females, 12 males; median age 66 years) at various timepoints for a median follow-up of 315 days (range: 59-1717), post-diagnosis; 12 patients were HPV-positive, 1 patient was HPV-negative, and 12 had unknown HPV status; 88% (22/25) of the patients had serial timepoints (≥2) available. ctDNA-positivity rates, test results, and ctDNA quantification by stage are summarized in Table. The quantitated ctDNA values (mean tumor molecules (MTM)/mL) increased in concordance with the stage of the disease, with values trending higher in stage III and IV. In addition, complete clinical outcome information was available for 22/25 patients at the time of releasing this data. Of the 96 plasma samples drawn from these patients, 68 (70%) were in the surveillance setting (post-definitive therapy). No recurrences were observed among 15 patients who cleared ctDNA on treatment and/or tested negative post-treatment, whereas, 6/7 ctDNA-positive patients were confirmed to have disease recurrence and 1 was pending confirmatory imaging. This often predated recurrence on scans. Conclusions: Measuring and monitoring MRD in patients with ASCC is feasible and has the potential to impact clinical decision making. Our study is the first to set the benchmark for the feasibility of using a tumor-informed assay in ASCC. Larger prospective studies are needed to explore the clinical utility of ctDNA status to guide disease surveillance and management of ASCC.[Table: see text]
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- 2022
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38. GI oncology molecular tumor board: Fostering collaboration and clinical education for personalized therapy.
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Grossman, Joseph Elan, primary, Bullock, Andrea J., additional, Angarita, Susana, additional, Bockorny, Bruno, additional, Dayyani, Farshid, additional, Hurley, Molly, additional, McGregor, Kimberly, additional, Pectasides, Eirini, additional, Peters, Mary Linton Bounetheau, additional, Reddy, Venkataprasanth P., additional, Schlechter, Benjamin L., additional, Tavallai, Mehrad, additional, and Zerillo, Jessica A., additional
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- 2020
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39. 1415P Performance of a tumor-informed circulating tumor DNA assay from over 250 patients with over 600 plasma time points in esophageal and gastric cancer
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M. Tavallai, Brandon M. Huffman, M. Goodman, Farshid Dayyani, Shruti Sharma, Vasily N. Aushev, Diana L. Hanna, Shifra Krinshpun, Gregory P. Botta, Samuel J. Klempner, Pashtoon Murtaza Kasi, T. Farmer, G. Budde, Joseph Chao, H. Pela, B. Drummond, Alexey Aleshin, and K. Baker
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Oncology ,Circulating tumor DNA ,business.industry ,Cancer research ,medicine ,Cancer ,Hematology ,medicine.disease ,business - Published
- 2021
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40. Psychometric Properties of the Persian Version of the Staff Observation Aggression Scale-Revised (SOAS-R) in Psychiatric Patients
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Gooshi, Muhammad, Siratinir, Masoud, Ebadi, Abbas, Tavallai, Abbas, and Mohammadi, Abolfazl
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Patient aggression ,Psychiatric nursing ,Reliability and validity ,Original Article ,Scale - Abstract
Introduction: In psychiatric settings, aggressive events frequently occur during therapy. The use of a proper standard scale to register aggression can facilitate the assessment and control of aggression and help reduce its frequency and severity. The aim of this study is to evaluate the validity and reliability of the Staff Observation Aggression Scale—Revised (SOAS-R). Methods: This psychometric study of the scale was conducted to determine the validity and reliability of the SOAS-R. The validation of the scale was assessed on the basis of 319 aggressive events in the psychiatric wards of the Baqiyatallah and Roozbeh hospitals. Convenience sampling was used for subject selection. Psychometric properties of SOAS-R were studied in two stages. First, the standard scale was translated according to the International Quality of Life Assessment (IQOLA) translation methodology. The face validity, content, and construct validity of the translated version were then determined. The construct validity of the scale was assessed by comparing the known groups. Results: The internal consistency of the whole scale was 0.99. The intra-class correlation coefficients (ICC) were 0.85–0.99 while kappa coefficient was 0.43 to 0.65 for different aspects of the SOAS-R. The validity of the scale was concurrently assessed by using the Visual Analogue Scale (VAS), with a Spearman-Brown correlation coefficient of 0.90. Conclusion: These results showed a favourable validity and reliability for the Persian version of the SOAS-R for the assessment of aggressive behaviour in psychiatric patients.
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- 2017
41. Hepcidin and
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Kiavash, Fekri, Negar, Asle Rasouli, Seyyed Abdolhossein, Tavallai Zavareh, Milad, Jalil, Fahimeh, Moradi, Maryam, Hosseinpour, and Hossein, Teimori
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congenital, hereditary, and neonatal diseases and abnormalities ,Ferritin ,Hepcidin ,Thalassemia ,Original Article ,HFE* Iron overload - Abstract
Background: Thalassemia patients need repeated transfusion that lead to increased blood ferritin level and iron overload in the heart and liver. Because the roles of hepcidin antimicrobial peptide (HAMP) and hemocromatosis protein (HFE) in iron metabolism have been confirmed, this study investigated the effects of these gene's polymorphisms on blood ferritin levels and iron overload in the heart and liver in patients with beta thalassemia major Materials and Methods: This cross-sectional study was conducted on 91 patients referring to the Hajar Hospital in Shahrekord, Iran in 2015. After the blood samples were collected, the ferritin levels were measured, DNA was extracted from the blood cells, and the types of polymorphisms were determined using PCR-RFLP. Data of MRI T2* in the heart and liver were drawn from the patients' medical files. Data analysis was conducted by t-test, chi-square test, Fisher's exact test, and Pearson correlation coefficient. Results: There was no significant correlation between blood ferritin level and c.-582 A>G polymorphisms of hepcidin gene (p=0.58), and H63D of HFE gene (p=0.818). In addition, there was no significant association between the polymorphisms and heart and liver MRI, but there was a significant association between blood ferritin level and qualitative heart and liver MRI (r=-0.34, p=0.035 and r=-0.001, p=0.609, respectively). Conclusion: In patients with β-thalassemia major, the presence of c.-582A>G HAMP and H63D HFE polymorphisms is not effective on blood ferritin level and iron overload in the heart and liver in the studied region.
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- 2019
42. Pulmonary Valvar Stenosis from the Fetal to the Infantile Period: A Case Report.
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Khalilian, Mohammad Reza, Zamani, Hassan, Salehgargari, Soraya, Tavallai, Abdolhossein, Ghazavi, Mohammad, and Daryoshi, Hooman
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PULMONARY stenosis ,PERCUTANEOUS balloon valvuloplasty ,NEONATAL intensive care units ,CONGENITAL heart disease ,FETAL echocardiography ,MULLERIAN ducts - Abstract
Background: Fetal echocardiography is a useful tool for diagnosing fetuses with congenital heart diseases, and it is best to be conducted between 17 and 19 weeks of gestational age. However, fetal echocardiography can be performed at other ages of pregnancy for a variety of reasons. This study describes one fetus with pulmonary valvar stenosis based on the fetal echocardiogram in the uterus. Case report: This study describes one fetus with pulmonary valve stenosis based on the fetal echocardiogram in the uterus. We referred the family to a hospital with neonatal intensive care unit admission. After birth, we followed her serially and confirmed pulmonary valve stenosis, which increased in severity after two months. Subsequently, we performed a percutaneous balloon valvuloplasty. Conclusion: Our findings showed that some cardiac defects could vary in severity during pregnancy and post-birth. There was clear evidence that pulmonary valvar stenosis was a lesion developed during the fetus's lifetime to tolerate the lesion. Although pulmonary stenosis progressed in the early months after birth, it was easily treated through balloon angioplasty. [ABSTRACT FROM AUTHOR]
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- 2022
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43. Comprehensive genomic profiling (CGP) of 275 male breast cancer (BC) tissue (TBx) and liquid (LBx) biopsies: Comparative analysis to a female cohort (FBC) and therapeutic considerations
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Allison Clark, Ethan Sokol, Mehrad Tavallai, Natalie Danziger, Jose Pablo Leone, Dexter X. Jin, Arun Kadamkulam Syriac, Jeffrey S. Ross, and Kimberly McGregor
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Oncology ,Cancer Research ,medicine.medical_specialty ,Genomic profiling ,business.industry ,Internal medicine ,Male breast cancer ,Cohort ,Medicine ,Stage (cooking) ,business ,medicine.disease - Abstract
539 Background: Male BC accounts for < 1% of all BC and is often diagnosed at later stage, which can result in higher mortality. Due to the rarity of this diagnosis, limited data exist on genomic alterations and prevalence of cancer susceptibility genes (CSG). We aimed to comprehensively describe the genomics of male BC and compare these to a FBC cohort across subtypes to provide insight on tumor biology and opportunities for targeted therapies. Methods: 275 male BC TBx or LBx were sequenced by Foundation Medicine (FM) using hybrid capture-based CGP. Both TBx and LBx were evaluated for all classes of genomic alterations (GA). Histological subtype, receptor status, and biopsy site were extracted from pathology reports. Paired samples with both TBx and LBx were available in 7 cases. The male BC TBx cohort with known receptor status (n = 253) was compared to a FBC cohort (n = 2855). Mutational prevalence in 5 breast CSG (ATM/BRCA1/BRCA2/CHEK2/PALB2) were compared along with their associated genomic LOH (gLOH) values. Results: Among male BCs, subtype distribution was: ER+/HER2- n = 210 (83%), ER+/HER2+ n = 22 (9%), TNBC n = 20 (8%). ER+/HER2+ male BC cases had higher rates of ERBB2 SV (22.7% v. 0.62%, p < 0.0001), PIK3CA (68.2% vs. 34%, p = 0.01), MDM2 amplifications (36% v. 4%, p < 0.0001) and GATA3 (36.6% v. 6.2%, p = 0.0002) than ER+/HER2+ FBC. In the ER+/HER2- cohort, male BC had more alterations in BRCA2 (13.8% v. 5.3%, p < 0.0001) and GATA3 (26% vs. 15%, p = 0.0004) and less alterations in TP53 and ESR1 (p < 0.0001 both). 28.6% of male BC v. 16.6% of FBC (p = 0.004) had one or more variants in one of 5 CSG of potential germline origin with a higher % of BRCA mutations in male BC vs. FBC (17.5% v. 9.9%, p = 0.0006). In the paired male BC Bx’s we saw genomic heterogeneity in a case showing 5 unique ESR1 alts and a PIK3CA SV unique to LBx done at the same time as TBx. We saw evidence of resistance with a shared BRCA1 alteration and several reversion mutations unique to LBx taken 471 days later, and a longitudinal pair with unique ESR1,PIK3CA and MTOR mutations in a LBx 547 days apart. Conclusions: Although male and female BC share some common alterations, our study revealed potentially important findings that may explain biological differences and provide treatment opportunities. Despite HR+/HER2+ male BC being rare, it was notable for increased co-mutations with ERBB2 SV, PIK3CA SV, and GATA3 SV, which can be associated with a worse prognosis but perhaps allow more novel combinations. ESR1 mutations appear more common in ER+/HER2- FBC reflective of treatment with aromatase inhibitors versus tamoxifen for male BC. TP53 mutations were more common in all subtypes of FBC. BRCA2 mutations and other potential germline CSG variants were more common in male BC, suggesting an opportunity for PARP inhibitors. LBx identified additional biomarkers and resistance mutations not seen in TBx.
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- 2021
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44. Prediction of Osteoporosis Preventive Behaviors through the Use of the Health Belief Model (HBM)
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Iraj Zareban, Marzieh Tavallai, Mahnaz Shahrakipour, and Fatemeh Kourki Nejad Gharaei
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Science ,Medicine ,women ,health belief model (hbm) ,preventive behaviors ,osteoporosis - Abstract
Aim: Nowadays, life is endangering women’s health, so that without organizational support, women are engaged in unhealthy life styles. Osteoporosis is the most common metabolic bone disease that increases the risk of bone fracture by creating a structural abnormality in the bone. Osteoporosis is a common disease among middle-age and older persons, especially women. Therefore, the necessity of implementing strategic plans to prevent osteoporosis is significantly important. This study was designed to determine the prediction of osteoporosis preventive behaviors using the Health Belief Model (HBM).Methods: This cross-sectional study was done among 200 women referred to the health centers in Taft in 2016. A stage simple random sampling was used. In order to gather the data a questionnaire consistent with the structures of HBM was used. Data were analyzed using the SPSS v16 and descriptive statistics (frequency, percentage, and mean±SD) and analysis (Linear regression). The significance level was 0.5.Findings: The mean age of the participants was 53 years. Linear regression analysis showed the perceived awareness among the participants (p> 0.001).Conclusion: The results showed that HBM is able to predict well the osteoporosis preventive behaviors in women. The findings of this survey confirm the efficiency of HBM in adopting preventive actions of osteoporosis.
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- 2016
45. Multi-kinase inhibitors interact with sildenafil and ERBB1/2/4 inhibitors to kill tumor cells in vitro and in vivo
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Andrew Poklepovic, Paul Dent, Mehrad Tavallai, Jane L. Roberts, Iryna Lebedyeva, Thomas Albers, and Laurence Booth
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0301 basic medicine ,Receptor, ErbB-4 ,ERBB ,Receptor, ErbB-2 ,Afatinib ,Buparlisib ,Pharmacology ,Cell morphology ,PI3K ,chemistry.chemical_compound ,Mice ,Phosphatidylinositol 3-Kinases ,0302 clinical medicine ,Adenosine Triphosphate ,Neoplasms ,pazopanib ,RNA, Small Interfering ,Endoplasmic Reticulum Chaperone BiP ,Sulfonamides ,3. Good health ,ErbB Receptors ,Oncology ,030220 oncology & carcinogenesis ,Female ,medicine.drug ,Research Paper ,Sorafenib ,Indazoles ,Mice, Nude ,Antineoplastic Agents ,Lapatinib ,Sildenafil Citrate ,Pazopanib ,03 medical and health sciences ,Inhibitory Concentration 50 ,ErbB ,Cell Line, Tumor ,medicine ,Autophagy ,chaperones ,Animals ,Humans ,Protein Kinase Inhibitors ,Copanlisib ,Binding Sites ,business.industry ,Xenograft Model Antitumor Assays ,respiratory tract diseases ,030104 developmental biology ,Pyrimidines ,chemistry ,Microscopy, Fluorescence ,sorafenib ,business ,Molecular Chaperones - Abstract
// Laurence Booth 1 , Thomas Albers 3 , Jane L. Roberts 1 , Mehrad Tavallai 1 , Andrew Poklepovic 2 , Iryna O. Lebedyeva 3 , Paul Dent 1 1 Department of Biochemistry and Molecular Biology, Virginia Commonwealth University, Richmond, VA 23298, USA 2 Department of Medicine, Virginia Commonwealth University, Richmond, VA 23298, USA 3 Department of Chemistry and Physics, Augusta University, Summerville Campus, Augusta GA 30912, USA Correspondence to: Paul Dent, email: pdent@vcu.edu Keywords: sorafenib, pazopanib, chaperones, ERBB, PI3K Received: April 25, 2016 Accepted: May 20, 2016 Published: May 31, 2016 ABSTRACT We have recently demonstrated that multi-kinase inhibitors such as sorafenib and pazopanib can suppress the detection of chaperones by in situ immuno-fluorescence, which is further enhanced by phosphodiesterase 5 inhibitors. Sorafenib and pazopanib inhibited the HSP90 ATPase activity with IC50 values of ~1.0 μM and ~75 nM, respectively. Pazopanib docked in silico with two possible poses into the HSP90 ATP binding pocket. Pazopanib and sildenafil combined to reduce the total protein levels of HSP1H/p105 and c-MYC and to reduce their co-localization. Sorafenib/pazopanib combined with sildenafil in a [GRP78+HSP27] –dependent fashion to: (i) profoundly activate an eIF2α/Beclin1 pathway; (ii) profoundly inactivate mTOR and increase ATG13 phosphorylation, collectively resulting in the formation of toxic autophagosomes. In a fresh PDX isolate of NSCLC combined knock down of [ERBB1+ERBB3] or use of the ERBB1/2/4 inhibitor afatinib altered cell morphology, enhanced ATG13 phosphorylation, inactivated NFκB, and further enhanced [sorafenib/pazopanib + sildenafil] lethality. Identical data to that with afatinib were obtained knocking down PI3K p110α/β or using buparlisib, copanlisib or the specific p110α inhibitor BYL719. Afatinib adapted NSCLC clones were resistant to buparlisib or copanlisib but were more sensitive than control clones to [sorafenib + sildenafil] or [pazopanib + sildenafil]. Lapatinib significantly enhanced the anti-tumor effect of [regorafenib + sildenafil] in vivo ; afatinib and BYL719 enhanced the anti-tumor effects of [sorafenib + sildenafil] and [pazopanib] in vivo , respectively.
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- 2016
46. Ruxolitinib synergizes with DMF to kill via BIM+BAD-induced mitochondrial dysfunction and via reduced SOD2/TRX expression and ROS
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William P. McGuire, Andrew Poklepovic, Jane L. Roberts, Mehrad Tavallai, Paul Dent, and Laurence Booth
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0301 basic medicine ,Ruxolitinib ,ruxolitinib ,Dimethyl Fumarate ,Pharmacology ,JAK-STAT ,chemistry.chemical_compound ,Mice ,0302 clinical medicine ,Neoplasms ,Antineoplastic Combined Chemotherapy Protocols ,Phosphorylation ,STAT3 ,Dimethyl fumarate ,biology ,Janus kinase 1 ,Bcl-2-Like Protein 11 ,JAK-STAT signaling pathway ,ROS ,Drug Synergism ,3. Good health ,Mitochondria ,Oncology ,Paclitaxel ,030220 oncology & carcinogenesis ,bcl-Associated Death Protein ,medicine.drug ,Signal Transduction ,tecfidera ,DMF ,03 medical and health sciences ,Cell Line, Tumor ,Nitriles ,medicine ,Animals ,Humans ,Protein kinase B ,Protein Kinase Inhibitors ,business.industry ,Janus Kinase 1 ,Rats ,030104 developmental biology ,Pyrimidines ,chemistry ,biology.protein ,Pyrazoles ,business ,Janus kinase ,Reactive Oxygen Species ,Priority Research Paper - Abstract
// Mehrad Tavallai 1 , Laurence Booth 1 , Jane L. Roberts 1 , William P. McGuire 2 , Andrew Poklepovic 2 and Paul Dent 1 1 Department of Biochemistry and Molecular Biology, Virginia Commonwealth University, Richmond, VA, USA 2 Department of Medicine, Virginia Commonwealth University, Richmond, VA, USA Correspondence to: Paul Dent, email: // Keywords : ruxolitinib, JAK-STAT, DMF, tecfidera, ROS Received : January 28, 2016 Accepted : February 29, 2016 Published : March 15, 2016 Abstract We determined whether the myelofibrosis drug ruxolitinib, an inhibitor of Janus kinases 1/2 (JAK1 and JAK2), could interact with the multiple sclerosis drug dimethyl-fumarate (DMF) to kill tumor cells; studies used the in vivo active form of the drug, mono-methyl fumarate (MMF). Ruxolitinib interacted with MMF to kill brain, breast, lung and ovarian cancer cells, and enhanced the lethality of standard of care therapies such as paclitaxel and temozolomide. MMF also interacted with other FDA approved drugs to kill tumor cells including Celebrex ® and Gilenya ® . The combination of [ruxolitinib + MMF] inactivated ERK1/2, AKT, STAT3 and STAT5; reduced expression of MCL-1, BCL-XL, SOD2 and TRX; increased BIM expression; decreased BAD S112 S136 phosphorylation; and enhanced pro-caspase 3 cleavage. Expression of activated forms of STAT3, MEK1 or AKT each significantly reduced drug combination lethality; prevented BAD S112 S136 dephosphorylation and decreased BIM expression; and preserved TRX, SOD2, MCL-1 and BCL-XL expression. The drug combination increased the levels of reactive oxygen species in cells, and over-expression of TRX or SOD2 prevented drug combination tumor cell killing. Over-expression of BCL-XL or knock down of BAX, BIM, BAD or apoptosis inducing factor (AIF) protected tumor cells. The drug combination increased AIF : HSP70 co-localization in the cytosol but this event did not prevent AIF : eIF3A association in the nucleus.
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- 2016
47. GI oncology molecular tumor board: Fostering collaboration and clinical education for personalized therapy
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Andrea J. Bullock, Benjamin L. Schlechter, Jessica A. Zerillo, Susana Angarita, Mary Linton B. Peters, Kimberly McGregor, Mehrad Tavallai, Molly Hurley, Joseph Elan Grossman, Bruno Bockorny, Eirini Pectasides, Farshid Dayyani, and Venkataprasanth P. Reddy
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Cancer Research ,medicine.medical_specialty ,Genomic profiling ,Standard of care ,Oncology ,business.industry ,Tumor board ,Medicine ,Medical physics ,Clinical education ,Personalized therapy ,business - Abstract
11029 Background: In recent years, genomic profiling has become standard of care for several gastrointestinal (GI) cancers. In addition to standard of care indications, comprehensive genomic profiling has led to novel and expanded applications of targeted therapy, chemotherapy, and immunotherapy and facilitated identification of potential clinical trials. A GI molecular tumor board (MTB) was developed with a goal of improving understanding of the biological effects of genomic alterations and their therapeutic implications to enhance personalized therapy. Methods: Foundation Medicine (FM) collaborated with physicians in the GI oncology group of an academic medical center to develop a GI MTB starting March 2019. As of December 2019, 27 GI oncology cases were presented where FoundationOneCDx testing was performed and a clinical question was posed. Cases were discussed by faculty, fellows, research staff, and a clinical genomic scientist and oncologist from FM. Impacted signaling pathways and biomarkers were discussed for each case alongside clinical content so that physicians could consider therapeutic options and clinical trials. Presenting faculty were asked to complete a questionnaire for each case presented to assess the impact of the MTB discussion on clinician knowledge and patient-level treatment recommendations. Results: Of 27 questionnaires sent to 7 providers, 17 (63%) were completed. Respondents indicated that as a result of the MTB, the treatment plan was changed in 2 cases (12%), reinforced in 9 cases (53%) and in 6 cases (35%) there was no effect. On a Likert scale of 1-4 where 1 is “rare/poorly” and 4 is “great” mean scores were as follows: Did this MTB help you understand the biological effects of the main genomic alteration(s) reported in the case presented? 3.3. Did this MTB help you understand the possible therapeutic implications of the main genomic alterations in the case presented? 3.3. Did this MTB improve your understanding of the role of next generation sequencing and comprehensive genomic profiling in making treatment decisions? 3.4. Conclusions: The results of our questionnaire indicate that treatment decisions were changed in a minority of cases based on the MTB. In most cases, clinical decision making was reinforced and understanding of the biological effects of genomic alterations and their therapeutic implications were improved. Based on this feedback we will continue to refine and integrate the GI MTB into clinical care for patients with GI malignancies, and share our experience locally with other disease groups.
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- 2020
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48. Hepcidin and HFE Polymorphisms and Ferritin Level in β-Thalassemia Major
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Maryam Hosseinpour, Hossein Teimori, Fahimeh Moradi, Milad Jalil, Seyyed Abdolhossein Tavallai Zavareh, Kiavash Fekri, and Negar Asle Rasouli
- Subjects
medicine.medical_specialty ,congenital, hereditary, and neonatal diseases and abnormalities ,Thalassemia ,Hfe gene ,BETA THALASSEMIA MAJOR ,Gastroenterology ,lcsh:RC254-282 ,03 medical and health sciences ,0302 clinical medicine ,Hepcidin ,Internal medicine ,Medicine ,Transplantation ,biology ,business.industry ,Hematology ,Ferritin ,HFE ,Iron overload ,medicine.disease ,lcsh:Neoplasms. Tumors. Oncology. Including cancer and carcinogens ,Exact test ,Oncology ,030220 oncology & carcinogenesis ,biology.protein ,HAMP ,business ,β thalassemia major ,030215 immunology - Abstract
Background: Thalassemia patients need repeated transfusion that lead to increased blood ferritin level and iron overload in the heart and liver. Because the roles of hepcidin antimicrobial peptide (HAMP) and hemocromatosis protein (HFE) in iron metabolism have been confirmed, this study investigated the effects of these gene's polymorphisms on blood ferritin levels and iron overload in the heart and liver in patients with beta thalassemia major Materials and Methods: This cross-sectional study was conducted on 91 patients referring to the Hajar Hospital in Shahrekord, Iran in 2015. After the blood samples were collected, the ferritin levels were measured, DNA was extracted from the blood cells, and the types of polymorphisms were determined using PCR-RFLP. Data of MRI T2* in the heart and liver were drawn from the patients' medical files. Data analysis was conducted by t-test, chi-square test, Fisher's exact test, and Pearson correlation coefficient. Results: There was no significant correlation between blood ferritin level and c.-582 A>G polymorphisms of hepcidin gene (p=0.58), and H63D of HFE gene (p=0.818). In addition, there was no significant association between the polymorphisms and heart and liver MRI, but there was a significant association between blood ferritin level and qualitative heart and liver MRI (r=-0.34, p=0.035 and r=-0.001, p=0.609, respectively). Conclusion: In patients with β-thalassemia major, the presence of c.-582A>G HAMP and H63D HFE polymorphisms is not effective on blood ferritin level and iron overload in the heart and liver in the studied region.
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- 2019
49. GRP78/Dna K Is a Target for Nexavar/Stivarga/Votrient in the Treatment of Human Malignancies, Viral Infections and Bacterial Diseases
- Author
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Elizabeth P. Smith, Tanya Cruz-Luna, Jane L. Roberts, Abigail Fidanza, Paul Siembida, Kelly A. Cycon, Aida Nourbakhsh, Mehrad Tavallai, Laurence Booth, Christopher D. Doern, Paul Dent, and Pascale Plamondon
- Subjects
Niacinamide ,Sorafenib ,Indazoles ,Polynucleotide 5'-Hydroxyl-Kinase ,Pyridines ,Physiology ,medicine.drug_class ,Antibiotic sensitivity ,Clinical Biochemistry ,Antibiotics ,Biology ,Virus ,Pazopanib ,chemistry.chemical_compound ,Antibiotic resistance ,Original Research Articles ,Cell Line, Tumor ,Neoplasms ,Regorafenib ,Escherichia coli ,medicine ,Animals ,Humans ,Original Research Article ,Endoplasmic Reticulum Chaperone BiP ,Protein Kinase Inhibitors ,Heat-Shock Proteins ,Sulfonamides ,Phenylurea Compounds ,Bacterial Infections ,Cell Biology ,Virology ,3. Good health ,Pyrimidines ,chemistry ,Virus Diseases ,Cell culture ,medicine.drug - Abstract
Prior tumor cell studies have shown that the drugs sorafenib (Nexavar) and regorafenib (Stivarga) reduce expression of the chaperone GRP78. Sorafenib/regorafenib and the multi‐kinase inhibitor pazopanib (Votrient) interacted with sildenafil (Viagra) to further rapidly reduce GRP78 levels in eukaryotes and as single agents to reduce Dna K levels in prokaryotes. Similar data were obtained in tumor cells in vitro and in drug‐treated mice for: HSP70, mitochondrial HSP70, HSP60, HSP56, HSP40, HSP10, and cyclophilin A. Prolonged ‘rafenib/sildenafil treatment killed tumor cells and also rapidly decreased the expression of: the drug efflux pumps ABCB1 and ABCG2; and NPC1 and NTCP, receptors for Ebola/Hepatitis A and B viruses, respectively. Pre‐treatment with the ‘Rafenib/sildenafil combination reduced expression of the Coxsackie and Adenovirus receptor in parallel with it also reducing the ability of a serotype 5 Adenovirus or Coxsackie virus B4 to infect and to reproduce. Sorafenib/pazopanib and sildenafil was much more potent than sorafenib/pazopanib as single agents at preventing Adenovirus, Mumps, Chikungunya, Dengue, Rabies, West Nile, Yellow Fever, and Enterovirus 71 infection and reproduction. ‘Rafenib drugs/pazopanib as single agents killed laboratory generated antibiotic resistant E. coli which was associated with reduced Dna K and Rec A expression. Marginally toxic doses of ‘Rafenib drugs/pazopanib restored antibiotic sensitivity in pan‐antibiotic resistant bacteria including multiple strains of bla kpc Klebsiella pneumoniae. Thus, Dna K is an antibiotic target for sorafenib, and inhibition of GRP78/Dna K has therapeutic utility for cancer and for bacterial and viral infections. J. Cell. Physiol. 230: 2552–2578, 2015. © 2015 The Authors. Journal of Cellular Physiology published by Wiley Periodicals, Inc.
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- 2015
- Full Text
- View/download PDF
50. Targeted Inhibition of Phosphoinositide 3-Kinase/Mammalian Target of Rapamycin Sensitizes Pancreatic Cancer Cells to Doxorubicin without Exacerbating Cardiac Toxicity
- Author
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Samya Dyer, David E. Durrant, Paul Dent, Anindita Das, Rakesh C. Kukreja, and Seyedmehrad Tavallai
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Programmed cell death ,Cell Survival ,Poly ADP ribose polymerase ,Mice, Nude ,Apoptosis ,Pharmacology ,Mice ,Phosphatidylinositol 3-Kinases ,Proto-Oncogene Proteins ,medicine ,Animals ,Humans ,Myocytes, Cardiac ,Doxorubicin ,Viability assay ,Protein Kinase Inhibitors ,Mechanistic target of rapamycin ,Phosphoinositide-3 Kinase Inhibitors ,Antibiotics, Antineoplastic ,Phosphoinositide 3-kinase ,Bcl-2-Like Protein 11 ,biology ,Cell growth ,TOR Serine-Threonine Kinases ,Imidazoles ,Membrane Proteins ,Drug Synergism ,Articles ,HCT116 Cells ,Cardiotoxicity ,Pancreatic Neoplasms ,Quinolines ,biology.protein ,Cancer research ,Molecular Medicine ,Female ,Poly(ADP-ribose) Polymerases ,Apoptosis Regulatory Proteins ,Reactive Oxygen Species ,medicine.drug - Abstract
Pancreatic cancer has the lowest 5-year survival rate of all major cancers despite decades of effort to design and implement novel, more effective treatment options. In this study, we tested whether the dual phosphoinositide 3-kinase/mechanistic target of rapamycin inhibitor BEZ235 (BEZ) potentiates the antitumor effects of doxorubicin (DOX) against pancreatic cancer. Cotreatment of BEZ235 with DOX resulted in dose-dependent inhibition of the phosphoinositide 3-kinase/mechanistic target of rapamycin survival pathway, which corresponded with an increase in poly ADP ribose polymerase cleavage. Moreover, BEZ cotreatment significantly improved the effects of DOX toward both cell viability and cell death in part through reduced Bcl-2 expression and increased expression of the shorter, more cytotoxic forms of BIM. BEZ also facilitated intracellular accumulation of DOX, which led to enhanced DNA damage and reactive oxygen species generation. Furthermore, BEZ in combination with gemcitabine reduced MiaPaca2 cell proliferation but failed to increase reactive oxygen species generation or BIM expression, resulting in reduced necrosis and apoptosis. Treatment with BEZ and DOX in mice bearing tumor xenographs significantly repressed tumor growth as compared with BEZ, DOX, or gemcitabine. Additionally, in contrast to the enhanced expression seen in MiaPaca2 cells, BEZ and DOX cotreatment reduced BIM expression in H9C2 cardiomyocytes. Also, the Bcl-2/Bax ratio was increased, which was associated with a reduction in cell death. In vivo echocardiography showed decreased cardiac function with DOX treatment, which was not improved by combination treatment with BEZ. Thus, we propose that combining BEZ with DOX would be a better option for patients than current standard of care by providing a more effective tumor response without the associated increase in toxicity.
- Published
- 2015
- Full Text
- View/download PDF
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