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Öğe Bioelectrical parameters of people exposed to radiofrequency in workplace and houses provided to workers(Diagnosis Press Ltd, 2008) Dasdag, S.; Akdag, M. Z.; Celik, M. S.The effects of radiofrequency (RF) and microwave radiation in workplace have been a subject of continuing of the major exposed groups is workers and their families who have been working and living in houses provided to employees of these stations. Therefore, the present study intended to investigate the effect of RF emitted from antenno of 1062 kHz medium wave radio-broadcating station on bioelectrical parameters of workers and their families living in houses provided to employees of these stations. of these stations. The studv was carried out on 20 men working in radio-broadcasting station, 11 women and 30 voluntary children (Boy: 15. Girl: 13) living in houses provided to workers of the station. Five bioelectrical parameters such os resistance, reactance, phase angle, body capacitance and basal metabolic rate (BMR) were measured. E.field and power density inside houses was between 0.48 V/m 7 - 2.86 V/m and 0.0001 mW/cm(2) - 0.0023 mW/cm(2) respectively. However the average E.field and power density in the plaving area of the children was 12.75 V/m and 0.0436 mW/cm(2) E.field crud power density in the control room desk and around the workplace was 4.04 V/m, 0.0042 mW/cm(2) and 31.88 V/m. 0.348 mW/cm(2) respectively. The results of this study showed that the parameters such as phase angle (degrees), body capacitance (pF) and reactance (Omega) of girl group were decreased according to control group (p<0.01). In conclusion, some bioelectrical parameters of the children who have been living in houses provided to employees of radio broadcasting stations can he affected by radio-frequencies.Öğe EFFECT OF LONG TERM MOBILE PHONE EXPOSURE ON OXIDATIVE-ANTIOXIDATIVE PROCESSES AND NITRIC OXIDE IN RATS(Diagnosis Press Ltd, 2008) Dasdag, S.; Bilgin, H. M.; Akdag, M. Z.; Celik, H.; Aksen, F.The effects of radiation emitted from cellular phones oil humans are an emerging area of investigation. The previous studies have shown the role of oxidative stress and NO at radiofrequency exposed rats. Therefore, the purpose of this study was to investigate the effect of microwave /radio/frequency emitted from mobile phones and its possible oxidative damage. Wistar Albino rats were divided into three groups as exposure, sham and cage control. Rats in exposure group were exposed to 900 MHz microwave radiation (0.0782 in W / cm(2)) in a carousel for 2 hours/7 days in a week during ten months. The same process was applied to sham group but the generator was turned off Rats in cage control group were kept ill cage only during the study The levels of catalase (CAT), myeloperoxidase (MPO), malondialdehyde (MDA), total antioxidant capacity (TA C), total oxidant status (TOS), oxidative stress index (OSI) in liver and nitric oxide (NO) levels in serum were determined to demonstrate the role of oxidative mechanisms. The increase of nitric oxide levels in exposure and sham groups were found significant compared to cage control group (p<0.01, p<0.05). Although serum NO levels increased in exposed rats, the difference between exposure and sham groups was not significant (p>0.05). MDA and TOS levels in liver tissue were found higher in exposed group compared to sham and cage control group (p<0.05). However, no significant alterations were found in other endpoints such as CAT MPO, TA C and OSI. In this study we showed that 900 MHz radiofrequency radiation emitted from mobile phones exhibited an increase oil MDA and TOS levels. Therefore, RF radiation emitted from GSM cellular phone may play a role to induce oxidative damage by; increasing lipid peroxidation and oxidative stress.Öğe Effect of mobile phone exposure on nitric oxide production(Lippincott Williams & Wilkins, 2006) Dasdag, S.; Bilgin, H. M.; Akdag, M. Z.[Abstract Not Available]Öğe EFFECT OF MOBILE PHONES ON TRACE ELEMENTS CONTENT IN RAT TEETH(Taylor & Francis Ltd, 2008) Adiguzel, O.; Dasdag, S.; Akdag, M. Z.; Erdogan, S.; Kaya, S.; Yavuz, I.; Kaya, F. A.Widespread use of wireless communication made it necessary to investigate the long term effect of mobile phone, which is the most popular technological equipment in the earth. One of the important parts of body that absorbs, radiation emitted from mobile phones is oral tissue. However mobile phone users and also scientists usually do not pay attention on effect of mobile phone e exposure on oral tissue. Therefore, there is no epidemiological and experimental studies focused on this part of body. The aim of this study was to investigate the of GSM (Global System for Mobile Communication) -Modulated 900 MHz radiofrequency radiation 017 trace element content of rat teeth. Thirty one Wistar Albino adult male rats were divided into three groups: experimental group (each, n=14), shame group (n=7), and cage control group (n=10). Head of the rats in the experimental group were & exposed to GSH-Modulated 900 MHz radiofrequency radiation for 2 hours per day during ten months. At the end of the exposure period, the contents of some trace elements as Ca, Mg, Zn, and P were measured in the oral tissue. The measurements were performed by Atomic Absorption Spectrophotometry (AAS). However phosphorus content of teeth was measured h.); ultraviolet spectrophotometer (UVS). Changes of Mg, and Zn contents in the experimental group were found to be statistically significant according to the sham and cage control groups. Ca and P contents in the (experimental group were higher than the sham and cage control groups. Difference between the groups was not statistically significant (p>0.05). The results of the study showed that GSM-Modulated 900 MHz radiofrequency radiation can be a factor to alter the teeth trace elements' densities. However further studies are necessary to know whether GSM-Modulated 900 MHz radiofrequency, radiations affects the oral tissues such as the teeth.Öğe EXAMINATION OF LONG TERM MAGNETIC FIELDS ON RAT CALVARIAL AND MANDIBULAR BONE MASS(Diagnosis Press Ltd, 2010) Akpolat, V.; Celik, M. S.; Celik, M. Y.; Ozerdem, M. S.; Akdag, M. Z.; Dasdag, S.; Yavas, M. C.By means of long term extremely low frequency magnetic field (ELF), this study examined the effect of long term magnethic field on rat calvarian and mandibular bone mass. Fourty five female Spraque-Dawley rats were selected for the study. The rats were divided into 3 groups (n=15); ELF MF with 50Hz, 1.5mT was applied for 6 months, 4 hours/day. Total cranial and mandibular bone mineral density (BMD) and bone mineral content (BMC) of rats were determined by dual-energy X-ray absorptiometry (DXA; Discovery QDR series, Discovery A, Hologic, Inc.). Measurements were recorded for all groups before and after the applications, all data were collected and analyzed statistically. The variations in Group 1, before and after the ELF MF applications with respect to BMC and BMD were considered significant (p<.01, p<.001). The variations in Group 2, that has bone loss with respect to BMC and BMD were considered not significant (p>0.05). The variations in control group, Group 3, with respect to BMC and BMD were considered significant (p<0.05).Öğe Radiofrequency Radiation Emitted from Cell Phone induces DNA Damage and Oxidative Stress in Rat Brain Tissue(Wiley, 2017) Alkis, M. E.; Akdag, M. Z.; Bilgin, H. M.; Akpolat, V.; Dasdag, S.[Abstract Not Available]
