Comparative Studies on the Effect of Noise and Electromagnetic Fields on Rabbit Blood

This study have shown the comparison between the effect exposure to the noise and electromagnetic waves radiation on rabbit. Environmental noise and electromagnetic fields are a known stressful factor that induces alterations of various physiological responses in the exposed individuals. The electromagnetic field applied was generated by using an antenna installed at the laboratory of Islamic University of Gaza. The mobile system used in Gaza is GSM with frequency equals 900 MHz. The antenna place at 20 cm away from the animals such that the whole body exposed to the electromagnetic field on the days of the test the rabbits were brought to the laboratory. The experiment was conducted at Gaza strip laboratory. Twenty two adult male rabbit were used throughout the study. Rabbits were randomly divided into three groups. The first group consists of ten rabbits (w1000-1200gm) served as the control group. During the course of the study the animals were housed in pairs in the animal house with food and water and kept under standard environmental conditions for light (12: 12 h light: dark cycle) temperature (27°C). The second group was subjected to the noise levels (60-70 dB) for 18 days. The animals were exposed to noise product from generator with 1KW and dimension of 1200 mmx1100 mmx1300 mm. They exposure for 3-4 hour in each day. The third one of animals were exposed to split dose of electromagnetic field with constant power in the range from (1.4–4.7) mw/cm2 and electric field with the range (60-130) V/m. The treated animals were subjected to electromagnetic field for eight hours then rest eight hours without exposure. The process of exposure and rest for the same time interval were repeated for two weeks. Animals from both control and experimental groups were decapitated at the end of the experiment. Blood samples were collected in 10 ml plain tubes for serum preparation. The effect of electromagnetic exposure is greater than noise one in urea, uric acid, creatinine, Alpha., AST, ALT and PLT. Exposure to noise caused increase triglycerides, white blood cell counts, mean corpuscular volume, mean corpuscular hemoglobin and mean corpuscular hemoglobin concentration. It was found to be directly related to the duration of exposure, the intensity and the characteristics of the noise with loud intermittent noise and longer duration of exposure producing more analgesia.