Exposure to non-ionizing radiation provokes changes in XXXX thyroid morphology and expression of @entity19515 .

@entity1 @entity6723 @entity19515 @entity1457 @entity2339 @entity158 @entity35
UNASSIGNED: Non-ionizing radiation at 2.45   GHz may modify the morphology and expression of genes that codify @entity1457 proteins (HSP) in the thyroid gland. Diathermy is the therapeutic application of non-ionizing radiation to @entity1 for its beneficial effects in @entity158 processes. We used a diathermy model on @entity35 subjected to maximum exposure in the left front leg, in order to study the effects of radiation on the nearby thyroid tissue. Fifty-six @entity35 were individually exposed once or repeatedly (10 times in two weeks) for 30   min to 2.45   GHz radiation in a commercial chamber at different non-thermal specific absorption rates ( @entity6723 ), which were calculated using the finite difference time domain technique. We used immunohistochemistry methods to study the expression of @entity19515 and morphological changes in thyroid gland tissues. Ninety minutes after radiation with the highest SAR, the central and peripheral follicles presented increased size and the thickness of the peripheral septa had decreased. Twenty-four hours after radiation, only peripheral follicles radiated at 12   W were found to be smaller. Peripheral follicles increased in size with repeated exposure at 3   W power. Morphological changes in the thyroid tissue may indicate a glandular response to acute or repeated stress from radiation in the @entity2339 . Further research is needed to determine if the effect of this physical agent over time may cause disease in the @entity1 thyroid gland.
