Sinusoidal electromagnetic field of 50 hz helps in retaining calcium in tibias of aged rats.

Effect of 50Hz sinusoidal electromagnetic field (SEMF) on normal bone physiology was evaluated in young and old female and male Wistar rats. Exposure to SEMF resulted in increased 45Ca retention in tibias of aged animals only. Levels of serum calcium in young female and male rats were significantly less than in respective aged rats. These were further decreased after 4 weeks of SEMF exposure. SEMF exposure did not change the serum calcium levels in aged rats, and inorganic phosphates in young and aged animals. Similarly, the levels of tartrate resistant acid and alkaline phosphatase were significantly decreased in young rats, whereas the levels remained unchanged in aged rats of either sex. The results revealed that SEMF of 1mT can prevent bone calcium loss due to aging in animals.

Geriforte stimulates antioxidant defense system.

Geriforte, a herbomineral preparation, feeding at 1 g% dose level for 4 weeks significantly increased catalase (CAT), superoxide dismutase (SOD) and glutathione peroxidase (GPx) activities in liver of mice. In rats, in addition to these enzymes, the levels of reduced glutathione (GSH) were also significantly enhanced. However, only SOD in mice and, CAT and SOD activities in rat lung were significantly elevated after Geriforte treatment. A decrease in superoxide (O2-) and H2O2 release by alveolar macrophages obtained from rats fed on Geriforte containing diet was observed. The results suggest that Geriforte feeding stimulates antioxidant defense system and indicate the future preventive/therapeutic prospects of this preparation against free radical damage under various pathological states.