Possible Effect of 2100 Mhz Cell Phone Radiation on Heart and Spleen Tissues of Rats- 2100 Mhz Cep Telefonu Radyasyonun Sıçan Kalp ve Dalak Dokularına olası Etkileri

Introduction:The widespread access of the society to mobile phones and their intensive use cause health concerns. This study is aimed to investigate the possible histopathological effects of exposure to Radio-frequency Radiation (RFR) originating from mobile phones rat heart and spleen tissue.Methods: Totally 14 Sprague Dawley male rats were used and divided into 2 group (n= 7 for each); sham-control group, exposure group. RFR exposure group was exposed to 2100 MHz GSM-like RFR for 5 hours/day, for 14 days. Heart and spleen tissues of all rats were sampled for histopathological examination and hematoxylin-eosin staining was performed. For p53 examination, immunohistochemical staining was also used in both tissues.Results: Histopathological and immunohistochemical evaluation revealed no significant changes in heart tissue, but trabecular irregularity and enlargement of sinusoids were observed in the spleen in histopathological evaluation.Conclusion: It was observed that short-term RFR exposure did not cause significant morphological changes in heart and spleen tissue. This situation may be seen due to the protective effect of the body against RFR

Effects of 2600 MHz Radiofrequency Radiation in Brain Tissue of Male Wistar Rats and Neuroprotective Effects of Melatonin

yegin, korkut/0000-0002-0546-2832; Delen, Kevser/0000-0001-5678-9088WOS:000607293000001PubMed: 33440456The debate on the biological effects of radiofrequency radiation (RFR) still continues due to differences in the design of studies (frequency, power density, specific absorption rate [SAR], exposure duration, cell, tissue, or animal type). The current study aimed to investigate the effects of 2,600 MHz RFR and melatonin on brain tissue biochemistry and histology of male rats. Thirty-six rats were divided into six groups randomly: cage-control, sham, RFR, melatonin, sham melatonin, and RFR melatonin. in RFR groups, animals were exposed to 2,600 MHz RFR for 30 days (30 min/day, 5 days/week) and the melatonin group animals were subcutaneously injected with melatonin (7 days/week, 10 mg/kg/day) for 30 days. SAR in brain gray matter was calculated as 0.44 and 0.295 W/kg for 1 and 10 g averaging, respectively. RFR exposure decreased the GSH, GSH-Px, and SOD levels and increased the MPO, MDA, and NOx levels (P < 0.005) significantly. RFR exposure also led to an increase in structural deformation and apoptosis in the brain tissue. This study revealed that exogenous high-dose melatonin could reduce these adverse effects of RFR. Limiting RFR exposure as much as possible is recommended, and taking daily melatonin supplements may be beneficial. Bioelectromagnetics. (c) 2021 Bioelectromagnetics SocietyGazi University Scientific Research Projects Coordination Unit [01/2018-05]Gazi University Scientific Research Projects Coordination Unit; grant number: 01/2018-05