Ginkgo biloba is the oldest tree on the planet. Its healing characteristics have been weel known for more than 3000 years. The aim of this investigation to establish the influence of Ginkgo biloba extract (Egb 761 Tanakan) on bioelectric activity of brain in humans. 30 subjects aged from 52 to 56 years were included in study. The bioelectric activity (EEG) was registrated before and after three month therapy with Ginkgo biloba extract. The obtained results showed that summary bioelectric activity speeds up. Frequency of alpha rhytms increases significantly, number of desinchrayitation desreases, decreases number of non specific activity 

The aim of this study was to show values of dynamometric parameters in elite athletes, and to determine and explain difference in those parameters between persons of various sport specialities and non sportsmen. In the study were included 153 participants: 123 elite athletes (17 boxers, 17 wrestlers, 27 hockey, 23 volleyball, 20 handball, 20 basketball and 19 soccer players) and 30 students, non sportsmen. Muscular strength (A) and power (P) were registrated by dynamometry. As a result of chronic adaptation to training, athletes had significantly higher values of registered parameters than non sportsmen. Lowest values of dynamometric parameters were measured in non sportsmen, at arm flexion A was 57.65 kg and power P285.60 W. Comparing results of athletes of different sport specialties, significant difference was found in values of some parameters. Dynamometric parameter at arm flexion has had the highest value in tested wrestlers 82.0kg, and lowest values were registered in soccer players, but only in absolute values. Differences in some measured parameters between groups of athletes can be explained by specific demands in different sports, during prolonged training and performance activities

Considering its importance in cell replication and differentiation, programmed cell death, DNA transcription, function of hormones, biological membranes and immunological system, zinc probably has a major role in enabling a proper
function of different tissues, organs and organic system in general. As an essential micronutrient wich is directly involved in metabolizm of insulin, zinc play important role in pathogenesis of diabetes mellitus and its complications. On the other hand, low zinc absorption and hyperzincuria in diabetic animals and humans have indicated that diabetics are more susceptibile to zinc deficiency compared to healthy persons. Inasmuch as zinc plays an important role in syntesis, storage and secretion of insulin as well as conformational integrity of insulin in the hexameric form, zinc deficiency may adversely affect the ability of the islet Numerous studies suggested that urinary zinc excretion was higher in diabetes mellitus, probably as result of hyperglycemia. In contribution, there are findings about correlation between urinary zinc excretion and blood glycosylated hemoglobin (HbA1c) levels in non-insulin dependent diabetic patients. Recent experimental investigations showed that zinc supplementation inhibited NF-kB activation in the pancreas and decreased the expression of inducibile nitric oxide synthase, a downstream target gene of NF-kB. The ability of zinc to modulate NF-kB activation in the diabetogenic pathway may be the key mechanism for zinc's protective effect and important criterion for choosing nutritional strategies for diabetes mellitus prevention.