Should tumors be clamped in radiobiological fractionation experiments?
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Should tumors be clamped in radiobiological fractionation experiments? / Beck-Bornholdt, Hans-Peter.
in: INT J RADIAT ONCOL, Jahrgang 21, Nr. 3, 3, 1991, S. 675-682.Publikationen: SCORING: Beitrag in Fachzeitschrift/Zeitung › SCORING: Zeitschriftenaufsatz › Forschung › Begutachtung
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TY - JOUR
T1 - Should tumors be clamped in radiobiological fractionation experiments?
AU - Beck-Bornholdt, Hans-Peter
PY - 1991
Y1 - 1991
N2 - In radiobiological fractionation experiments tumors are often clamped during irradiation. This is done not only to facilitate the interpretation of the data by eliminating the influence of reoxygenation but also to avoid uncontrolled changes in the hypoxic fraction that are caused by anesthesia or stress from physical restraint. In this study it is shown that clamping of tumors during irradiation also affects repair, repopulation, and redistribution. From these results it is concluded that clamping of tumors during fractionated irradiation treatment does not appear to be an adequate measure to elucidate the mechanisms that determine tumor response to radiotherapy. Even some of the fundamental concepts of tumor radiobiology might contain some uncertainties, since they are often based on data resulting from clamped tumors.
AB - In radiobiological fractionation experiments tumors are often clamped during irradiation. This is done not only to facilitate the interpretation of the data by eliminating the influence of reoxygenation but also to avoid uncontrolled changes in the hypoxic fraction that are caused by anesthesia or stress from physical restraint. In this study it is shown that clamping of tumors during irradiation also affects repair, repopulation, and redistribution. From these results it is concluded that clamping of tumors during fractionated irradiation treatment does not appear to be an adequate measure to elucidate the mechanisms that determine tumor response to radiotherapy. Even some of the fundamental concepts of tumor radiobiology might contain some uncertainties, since they are often based on data resulting from clamped tumors.
M3 - SCORING: Zeitschriftenaufsatz
VL - 21
SP - 675
EP - 682
JO - INT J RADIAT ONCOL
JF - INT J RADIAT ONCOL
SN - 0360-3016
IS - 3
M1 - 3
ER -