Radiation therapy is extensively used for treatment of malignancies, but angiosarcomas occurring in an irradiated area are uncommon. We report a rare case of high-grade epithelioid angiosarcoma of upper end of right humerus in a 67-year-old male occurring ten years following irradiation for giant cell tumor of the same anatomical site. The patient presented with progressive painful swelling ove...

background: dosimetry is a fundamental part of the radiation processing industry. aqueous inorganic dosimeters have been used for gamma radiation dosimetry such as standard ferrous sulfate dosimeter. the purpose of this study was to investigate the effect of gamma radiation on the diethyl fumarate def in dimethyl sulfoxide dmso solution and its possible use in chemical dosimetry. materials and ...

OBJECTIVE The purpose of this study was to evaluate the Knoop hardness number (KHN) of dual-cured core build-up resin composites (DCBRCs) at 6 depths of cavity after 3 post-irradiation times by 4 light-exposure methods. MATERIAL AND METHODS Five specimens each of DCBRCs (Clearfil DC Core Plus [DCP] and Unifil Core EM [UCE]) were filled in acrylic resin blocks with a semi-cylindrical cavity an...

BACKGROUND Bone-related complications are commonly reported in cancer patients receiving radiotherapy and are collectively referred to as the abscopal effect of irradiation, the mechanism of which remains poorly understood. When patients receive targeted radiotherapy to a tumor, the local skeleton is exposed to radiation, particularly within the bone marrow. We therefore investigated the hypoth...

The sulfhydryl enzyme malate synthase was inactivated by X-irradiation in air-saturated aqueous solution, in the absence or presence of a variety of additives (thiols, antioxienzymes, typical radical scavengers, inorganic salts, buffer components, substrates, products, analogues). Radiation-induced changes of enzymic activity were registered immediately after stop of irradiation and in the post...

Effect of 50 mg/kg body weight of leaf extract of jamun (Syzygium Cumini Linn. Skeels) was studied on the radiation-induced changes in the jejunum of mice exposed to 7, 10 or 15 Gy γradiation on day 1, 3 and 7 days post-irradiation. Histological examination of mouse jejunum on day 1, 3 or 7 revealed a dose dependent increase in the radiation-induced damage after exposure to 7, 10 or 15 Gy. Irra...