Alpha lipoic acid is the most efficient of all known antioxidants for its lipo and hydrosolubility which enable easy penetrability in cytoplasm making its protection of free reactive radicals, energetic metabolism, regulation of genetic expresion etc. It has wide application in prevention and in therapy of diabetic angiopathy, neuropathy, cardiovascular, cerebrovascular, neurodegenerative disease, lesion, (insufficiency) of liver, HIV, intoxication with hard metals, mycotoxins etc. An important proprety of lipoic acid is its possibility to prevent or remove lesions which are caused by application aminogycosides and haloperidol (ototoxicity, nephrotoxicity) according to its wide application. R isomer of lipoic acid is physiological substance presented in organism which synthesize in in liver enabling its its application in relatively high dose for a longer period of time.

Chronic vein insufficiency (CVI) is abnormal functioning of a system of veins resulted from incompetence of vein valves, with or without vein obstruction covering both surface and deep veins. Nowadays there are various standars in the diagnosis of CVI and variations of treatment modalities, which increases the importance of occuracy and foundations of the diagnosis. In the consideration of diagnostic needs of patients with CVI, CEAP classification is suggested. This classification defines clinic categories, etiology of problem, covered anatomical segments and pathological mechanisms of CVI.

L-carnitine is assorted with non-vitamin nutritives (metavitamines) on the grounds of importance to the living process, while itb similar to aminoacids in terms of structure. It has multistructural role in functioning of an organism while one of the most important and best investigated roles is the sphere of energizing metabolism because it is needed for the transport of the longchain fatty acids into the mitochondria where they are subject to a β oxidation. It has widespread clinical application in prevention and therapy of: genetic and secondarycarnithine deficiency, cardiovascular disease, lipid metabolism disorder, carbohydrate metabolism disorder, aciduria of organic acids, renal and liver insuficiency, neuropathy, miopathy, as well as the means for improvent of fitness capacites of sportsmen. L-carnitine is crucial part of organism of mamals, therefore it can be applied in relatively big doses whereby it requires no detoxication in liver, on the contrary, it significaty increases its detoxication capacites. Key words: L-carnitine, Physiology, Prevention , Therapy. L-carnitine is assorted with non-vitamin nutritives (metavitamines) on the grounds of importance to the living process, while itb similar to aminoacids in terms of structure. It has multistructural role in functioning of an organism while one of the most important and best investigated rol condarycarnithine deficiency, cardiovascular disease, lipid metabolism disorder, carbohydrate metabolism disorder, aciduria of organic acids, renal and liver insuficiency, neuropathy, miopathy, as well as the means for improvent of fitness capacites of sportsmen. L-carnitine is crucial part of organism of mamals, therefore it can be applied in relatively big doses whereby it requires no detoxication in liver, on the contrary, it significaty increases its detoxication capacites.

Artrial hypertension is a very serious social-medical probleme as such has an epidemic characteristics according to high prevalence at incidence frequency disease of young, a high death rate, there is also a somewhat difficult erly diagnosis at the early stages of illnes due to unspecified clinical examination in majority of diseased. On the basis of etiology, arterial hypertension is divived into: primary (essential) and secondary (symptomatologic). According to the current criteria, primary arterial hypertension is considered to be all the cases where etiology cannot identify only the cause or a specific structural change in a organ. It instead causes a larger number of etiological factors by their group actions which are called risk factors.Including the secondary hypertension all cases at arterial hypertension are classified und there can be seen a specific structural change in an organ and disorder of it's function. The aim of our work was to determinate which were the familiar risk factors in development of arterial hypertension and it's domination to inhabitants of Zubin Potok considering high prevalence of arterial hypertension out of 6500 inhabitants in the infirmary of Zubin Potok, 2450 patients are registrated with arterial hypertension. Examination is performed to 100 patients with primary arterial hypertension by prospectus analysis which are registrated consecutively in the interval of two months by biochemicals parametars, a height of systolic and dyastolic arterial pressure and BMI. By means of questionnaire the rest of risk factors are gathered with a piece of data smoking, alchoholism and stress. During the examination we determined that the most typics risk factor is disorder of metabolism of lypoproteins, and important pathothysiological mechanism in development of arterial hypertension is reduction of HDLcholesterol, which can be one of indirect indentifier of oxidative stress.

Breast cancer is mostfreqency malignant tumor in womans, cardinal causer of death in malignant tumots with continous ascendig of incidence and mortality. Actual therapy of breast cancer is multidisclipinary to consist in surgical, irradiant, cytostatic, hormonal and imunological therapy with specific directive based in disease stage. Surgical therapy is now more effectiveness metod of therapy and base of multidisclipinary therapy. In aim of prognosis desease conclusion and risk ratio of local relapse in currency is prognostic factors. With combination a few factors derive prognostic indexes with whose can acquire more information aggainst biologic behaviour of each neoplasm.

Cardiovascular diseases are one of the most significant social-medical problems. Having on mind their importance, the risk factors have been defined. Numerous clinical and epidemiological studies showed that deficit of magnesium in the human organism has a certain contribution in etiology, pathogenesis and evolution of cardiovascular diseases. RASKO, Rakovica's study of cardiovascular diseases, found out that these diseases are more frequent at the locations where
soft water with decreased content of magnesium is being used as drinking water. Magnesium is an integral part of about 300 enzyme systems in which catalyst's role have adenositriphospathase as Mg-ATP, a part of NaKATP-ase, exogenous and endogenous pumps for calcium, etc. A normal plasmatic concentration of magnesium is 0,8-1 mmol/l. Plasmatic level of magnesium is not directly correlated with actually content in an organism since 33% of plasmatic magnesium is connected with plasma's proteins and that's why hypoproteinemia can cause a false hypomagnesemia. The normal values of magnesemia don't exclude deficit of magnesium in an organism since PTH and calcitonin mobilize magnesium from the bones. Hypomegnesemia is caused by improper and irrational nutrition, hormone disturbances, and different conditions and diseases of an organism. Magnesium has vasodiletatoric, antianginosic, hypolipemic, antiagregatic effects. Mechanism of magnesium's effect is based on its physiological role in an organism, i.e. on correction of hypomagnesemia. In preventive and therapeutic purposes magnesium's compounds are used peroraly and parenteraly. With parenteral use the plasmatic concentrations of more than physiological 2,5-7,5 mEq/l can be attained in which case somnolentia can be appeared but not a coma nor depression of breathing. In prevention and therapy of cardiovascular diseases magnesium has a significant place in the largest number of cases as an adjuvant drug