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  • 28 June 1999 Volume 8 Issue 2
      

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  • Tu Yu, et al
    1999, 8(2): 65-67.
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    Purpose: To know the dose of spermary when the patient was radiotherapied in head-neck, in thorax, in abdomen with 6MV-X rays, so as to afford experimantal dependencies for clinical therapy plan.Methods and Materials: Put the thermoluminescent dosimeters (TLD) in a tisssue-epuivalent anthropomorphic phantom's spermary and irradiated with 6MV-X rays in different unit of the phantom to measure absorbed doses of spermary.Rusults: irradiated in the same unit, both of spermaries' doses are not different, while in different unit, the doses of spermary are different.If 1 Gy dose was given in head-neck or in thorax or in abdomen, the doses that spermary absorbed were 0.155mGy, 0.340mGy and 32.075 mGy.Conclusion: The routine radiotherapy to the tumour in abdomen will damage spermary, the effective mothod to decrease the dose of spermary is to use screen blanker.
  • Luo Can, et al
    1999, 8(2): 68-69.
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    Using direct immunoflurescence and flow cytometric analysis, Transferrin recepor (TfR) expression and adaprtive response were examined in lymphocytes in mouse spleens 24 hours after whole body irradiation (WBI) with low dose X-rays.The results showed that WBI with 75 mGy X-rays could enhance TfR expression in lymphocytes in mouse spleens, and could reduce the inhibition to TfR expression by 2Gy irradiation after given 75 mGy irradiation and induce adaptive response of TfR expression.It is demonstrated that TfRs may play a role in immune adaptive response induced by low dose radiation.