[ effect of extremely low frequency electromagnetic field[50Hz] on induction of chromosomal damages on bone marrow erythrocytes of male Balb/C mouse]

The increasing use of the electromagnetic field producer sets in daily living causes concerns about these waves on human health. The effects of extremely low frequency electromagnetic field [50 Hz] on induction of chromosomal damages on bone marrow erythrocytes of male Balb/C mouse has been investigated in this research. This is an experimental study in which the laboratory system of producing electromagnetic field with low frequency [50 Hz] was used. Five week old male Balb/C mice were divided into three controls, Sham-exposed and experimental groups. The experimental mice exposed were exposed to electromagnetic field [50 gauss] for 4 days [12 hours/day]. After treatment, the chromosomal damages were assessed using micronucleus test in polychromatic erythrocytes and resultant quantity data were analyzed using t and Mann-Whitney test. Results showed that frequency of micronucleated polychromatic erythrocytes of experimental group [14/35 +/- 1/589] was more than Sham-exposed [8/958 +/- 1/049] and control group [7/65 +/- 0/768] significantly [p<0/05]. Extremely low frequency electromagnetic field [50 Hz] causes chromosomal damages induction in polychromatic erythrocytes of bone marrow male Balb/C mouse

Hyperuricemia and hypertension in primary hyperparathyroidism

Serum urate levels were studied in 18 patients with primary hyperparathyroidism [pHPT] and in 36 controls [group2] matched for age, sex, nationality and blood pressure. These two groups were compared with general surgical inpatients [group 3]. The prevalence of hyperuricemia was markedly higher in the pHPT patient group [especially for men] than in the other two groups [44, 17 and 9%, respectively; p [0.05 and; <0.001]. The prevalence of hypertension was markedly higher in the pHPT patient group [66.7%] than in the surgical inpatients [15%; p < 0.0001]. Five of the 9 male patients had both hypertension and hyperuricemia, the pathogenesis of which may be related to the action of hypercalcemia on renal functions. As the prevalence of hypertension and hyperuricemia were markedly higher than previously noted, it is suggested that more attention should be paid to blood pressure, serum urate and renal function in patients with primary hyperparathyroidism, in order to improve diagnosis and therapy