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Iranian Journal of Medical Physics، جلد ۶، شماره ۱، صفحات ۱-۱۲
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عنوان انگلیسی Treatment of Murine Tumor Models of Breast Adenocarcinoma by Continuous Dual-Frequency Ultrasound
چکیده انگلیسی مقاله Introduction: Acoustic transient cavitation is the primary mechanism of sonochemical reaction and has potential use for tumor treatment. In this study, the in vivo anti-tumor effect of simultaneous dual-frequency ultrasound at low-level intensity (ISATA < 6 W/cm2) was investigated in a spontaneous murine model of breast adenocarcinoma in Balb/c mice. Materials and Methods: Forty tumor bearing mice were divided into four groups (10 in each group). The treated groups received 15 or 30 minutes of combined dual-frequency ultrasound in continuous mode (1 MHzcon + 150 kHzcon) respectively. The control and the sham groups contained the untreated mice. The tumor growth delay parameters including tumor volume, relative tumor volume, T5 and T2 (the needed time for each tumor to reach 5 and 2 times the initial tumor volume, respectively), survival period and percent of tumor growth inhibition ratio were measured on different days after treatment. Results: The results showed that the 30 min treatment was effective in tumor growth delay and percent of tumor growth inhibitory ratio compared to the sham and the control groups. The tumor volume growth and relative volume of tumors in the same treated group showed an anti-tumor effect relative to the sham and the control groups. There was a significant difference in tumor volume growth between this 30 min treatment group and the sham group 12 days after treatment (p-value < 0.05). The mean of the survival period for animals in the 30 min treatment group was 16% more than the control group. The percent of tumor growth inhibition in the 30 and 15 min treatment groups were 23% and 20% respectively, showing a statistically significant difference. Conclusion: Sonodynamic therapy with combined dual–frequency ultrasound in progressive wave mode can be useful in cancer therapy.
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نویسندگان مقاله امیر هوشنگ براتی | amir hoshang barati
ph.d., medical physics dept., tarbiat modares university, tehran, iran.

سازمان اصلی تایید شده: دانشگاه تربیت مدرس (Tarbiat modares university)

منیژه مختاری دیزجی | manijhe mokhtari dizaji
professor, medical physics dept., tarbiat modares university, tehran, iran.

سازمان اصلی تایید شده: دانشگاه تربیت مدرس (Tarbiat modares university)

حسین مزدارانی | hossein mozdarani
professor, medical genetics dept., tarbiat modares university, tehran, iran.

سازمان اصلی تایید شده: دانشگاه تربیت مدرس (Tarbiat modares university)

سیده زهرا بطحایی | seyedeh zahra bathaie
associate professor, clinical biochemistry dept., tarbiat modares university, tehran, iran.

سازمان اصلی تایید شده: دانشگاه تربیت مدرس (Tarbiat modares university)

زهیر محمد حسن | zahir mohammad hassan
associate professor, immunology dept., tarbiat modares university, tehran, iran.

سازمان اصلی تایید شده: دانشگاه تربیت مدرس (Tarbiat modares university)

انوشیروان کاظم نژاد | anoshirvan kazemnejad
associate professor, biostatistics dept., tarbiat modares university, tehran, iran.

سازمان اصلی تایید شده: دانشگاه تربیت مدرس (Tarbiat modares university)

نشانی اینترنتی http://ijmp.mums.ac.ir/article_7385.html
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