The correlation between indoor and soil gas radon concentrations in Kiraz district, İzmir.

All humans are exposed to radon, the primary source of natural radiation, which can harm people due to natural processes rather than human activity. Thus, it is of significant importance to determine the levels of radon in indoor, soil gas, water, and outdoors. Radon concentration (C) was measured in Kiraz district, İzmir, and the correlation between the indoor and soil gas C values was investigated.

Survival and Prognostic Factors in Re-irradiation for Recurrent/Progressive Malignant Gliomas: Turkish Society of Radiation Oncology Neuro-Oncology Group, TROD 007-006 Study.

Aim: To evaluate survival and prognostic factors associated with survival among patients who underwent reirradiation for recurrent/ progressive primary brain tumors.

Material And Methods: A multicenter, retrospective study (7 centers, N=236) was conducted by the Neuro-oncology Group of the Turkish Radiation Oncology Association.

Results: Median overall survival (OS) was 11 months and 1- and 2-year survival rates were 48% and 22%, respectively.

Administration of low dose intranasal ketamine exerts a neuroprotective effect on whole brain irradiation injury model in wistar rats.

Exposure to ionizing radiation leads to oxidative stress and neuroinflammation, resulting in neurocognitive impairments. Adverse effects are also associated with glutamate-induced excitotoxicity due to alterations in the composition of glutamate receptors. Ketamine, which is a noncompetitive NMDA glutamate receptor antagonist, has been stated to exert an impact on glutamatergic receptors.

Investigation on radiation attenuation properties of natural stone samples traded in Turkey.

Although radioprotection is globally regulated for high radiation exposure, formal guidelines concerning natural radiation exposure that causes stochastic radiation effects have not been established. The commonly used absorbers lead, tungsten and bismuth are not appropriate for the radioprotection of the public. The primary barrier against natural radiation is the structural components of buildings, where humans spend approximately 80 % of their lifetime.

Investigation of the risk factors in the development of radionecrosis in patients with brain metastases undergoing stereotactic radiotherapy.

Objective: To investigate the incidence, timing, and the factors predictors radionecrosis (RN) development in brain metastases (BMs) undergoing stereotactic radiotherapy (SRT).

Methods: The study evaluated 245 BMs who exclusively received SRT between 2010 and 2020. RN was detected pathologically or radiologically.