These data indicate that propionyl-l-carnitine is of value in preventing decline of renal function that occurs during ischemia-reperfusion. The beneficial effect of propionyl-l-carnitine possibly relates to lowering lipid peroxidation and free radical generation that eventually results in the preservation of tubular cell structure. The efficacy of propionyl-l-carnitine to modulate ischemia-reperfusion injury in these models opens new perspectives for preventing post-transplant delayed graft function.

MA-QoL II is a useful tool in assessing bariatric surgery, including quality of life. Long-term monitoring will be essential in determining psychological changes and the degree of weight loss.

To our knowledge, such case of the necrotizing fasciitis has not been previously reported. The mechanism of derivatives of oil influence on tissues is not investigated yet; therefore, treatment method is uncertain and sometimes ineffective.

Background. Rural areas in Poland are inhabited by over 15 million people, i.e. 39.5% of Polish population, including about 5 million rural residents in the Podlaskie province. The incidence of obesity is associated with increased prevalence of obesity-related conditions. Studies that have been conducted do not confirm the efficacy of conservative treatment of obesity, but show that bariatric procedures produce the best longterm results.