Modulation of potassium channels is a recent modern approach to experimental and clinical investigation of potential better tocolytic medications. Assuming that potassium channels are by far the largest category of cellular ion channels, they are of crucial importance for the regulation of uterine smooth muscle tone. In the vast category of potassium channels, Maxi-K and BKCa (highly conductive, calcium-activated channels) are considered the main channels in the myometrium. It is believed that those have a key role in the modulation of uterine contractility and the homeostasis of myometrial calcium. The total number of Maxi-K channels is doubled during the onset of labor, compared to their number in pregnant and non-pregnant myometrium. We also keep getting more familiar with the characterization and control of myometrial potassium channels. Certain effects of pharmacological potassium channel modulators in isolated parts of both human and animal, both pregnant and non-pregnant myometrium will be presented in this article. Even though there have been a lot of studies on this subject, not many of them mentioned the role and modulation of potassium channels during human labor. We are still looking for the substances that will perform best in the treatment of possible miscarriages and early labor; although the use of beta sympathomimetics and calcium channel antagonists has been a major breakthrough in treatment of these pregnancy disorders. Using new tocolytic medications and a selective approach to cases of early labor, along with the use of other adequate measures, could improve the treatment of early labor in the future.

This research has been done on a sample of 4211 drivers, from which 3886 ( 92,28%) were put in examination for plus measuring alcohol concentration in exhaled air, that is, breath testing with breathalyser type Alcotest® 7410 RS, while 297 of examined people, besides breath testing were put through blood sample analysis, applying ADH enzyme's method. Both sexes were covered in this examination, and they were at the age from 16 to 66, classified according to the clinical phase alcohol taken. Results: Most of the alcoholic drivers were men. The greatest number (94,9% from 4211) didn't participate in a traffic accidents (TA), 3,8% were participants in TA with material damage, and in 1,2% of cases were TA with injuring some of the participants, while in just 4 cases (0,1%) came to mortal injuring participants. The highest number of police controls were registrated on Saturdays, in Summer months, in time from 00:00 to 03:59 hours. Average age of the examined people were 32,5 years old (SD = 0,871), and the greatest number of the examined in this analysed sample belongs to age group from 21 to 30 (1748, that is, 41,51% from 4211). The greatest number of drivers (51,3%) were in clinical phase of mild intoxication. Applying three factor's ANOVA statistical method with one set factor (with part of a day in a month) it is established that arising traffic accidents (TA) depends solely from clinical phase of intoxication. Obtained results taken from breath testing are compared with results received from determinating Blood Alcohol Concentration (BAC) applying enzym's ADH method. Very high coefficient of correlation is established from 0,95 (r 0,198, p>0,0006). In the observed period falling trend of alcoholic drivers is recorded. We can note constant numerical domination of age group of 21 to 30. Driving drunken is typical characteristic for male population. In group of professional drivers it's extremely rare steering a vehicle in alcoholic condition. It is detected that in most cases of TA participants were in mild or medium state of intoxication, what indicates to a major accidental significance precisely these degrees of intoxication

Getting on in years individually becomes the biggest risk factor in appearance of the woman's brest cancer. From the entire number of new discovered woman's breast cancers, 48% are women older then age of 65. Woman's breast cancer discovered by persons got on in years diagnose in getting forward condition of illness besides bigger cancer freqvency with propitious histology and biological profile. There are not enough proper studies about the breast cancer in elderly. For the project development material has been used from the surgical clinic and clinic for Oncology, as wellas institute for Pathology of the clinical centre in the city of Nis.The data from our serial direct attention to rarer conduct of standard diagnostic procedures at elderly with breast cancer. Also the conectivity between years of the patients; and time being passing from the initial diagnosis until treatment has been studied. Using pathhistology exam we were reseiving information about histological type of cancer, about the size of cancer, histological and nuclear grade, as well as absence or hold of metastasis process of lymph nodus. The most frequent used surgical procedure was radical mastectomy modified by Madden and Patey. The presence of complications has been tracked in the postoperative progress. In the postoperative progress depending on condition of breast cancer histological and nuclear grade, hold of the lymph knots,positivism of hormonereceptors, presence of comorbidity female patientswere subjected to adjuvant therapy. With purpose of perception of diagnoses as well as caracteristics and results of treatment of the female patient's survival has been tracked. The average survival in the examined group was 21 months while it was 31 month in the control group

The role of Eustachian tube dysfunction in chronic middle ear inflammation etiopathogenesis is obvious and almost always present. Shorter length of m. tensor velli palatini, the only active opener of the Eustachian tube, is related to tube dysfunction. The aim of the study is to investigate correlation between soft palate length, angle formed between soft and hard palate and chronic middle ear inflammation occurrence. Examinations have been performed on 60 adults. Group A consisted of patients suffering from chronic middle ear inflammation, whereas group B consisted of healthy individuals with respect to their gender and age. Examinations included medical check-up, auditory findings, radiological examinations and craniometrical X- ray measurements performed using lateral head X-ray. Soft palate length and angle formed between soft and hard palate angle were measured. It has been determined that soft palate length (distance from spine nasalis to the top of the uvula) is shorter in patients suffering from chronic middle ear inflammation ( average value for group A= 3,09, SD=0,422, whereas for group B =3,747, SD=0,448). Student test results indicate highly significant difference between examined groups ( value of variable t=6,025). Angle formed between hard and soft palate is higher in group A examinees (average value 138.4, SD=9.379, than in control group (average value 132,17, SD=8.765). Value of the variable t=2,658 indicate the significant differences in values between examined groups. Soft palate in patients suffering from chronic middle ear inflammation is positioned more horizontally and its length is shorter than in control group B. Depth and volume of the nasopharynx is lesser in group A patients. These soft palate dimensions impact soft palate muscular disbalance, mostly m. tensor velli palatini. In dysfunctional tube, medial lamina cartilage rotation is insufficient and muscular movement is minimal. Defining soft palate dimensions and nasopharyngeal morphology Eustachian tube dysfunction can be explained and chronic middle ear inflammation development predicted

Visual acuity in the patients who suffered from end stage renal disease (ESRD) on hemodialysis (HD) treatment is essential prerequisite of good life quality. PURPOSE: to evaluate the prevalence and causes of visual impairment at the patients on HD. METHOD: 71 patients on HD were assessed with this study. The main outcomes were best corrected visual acuity and primary cause of visual impairment. RESULTS: statistical significance obtained for the followed refraction errors: 42 % of patients had hyperopia (p<0.000; 95% CI 0.36-0.48) and 15% of them myopia (p=0.030; 95% CI 0.11-0.19) as well as low vision (amblyopia) at 6% (p=0.024; 95%CI 0.03-0.09). CONCLUSION: it's necessarily to provide regular monitoring of all patients on HD. Prevalence of refractive errors and visual impairment is more often among patients on HD then on general population

Systematic and programmed physical exercise, called training, play a significant role in human health and ability improvement. A moderate physical exercise is considered as a very efficient method of increasing general physical ability and reaching the top results in sport, and simultaneously contributes to health quality of persons having sedentary professions. In active sportspersons, ability of cardiovascular, respiratory and bone-muscle systems are determined by training quality itself. Sportspersons show characteristically better adaptability of neurohumoral system to effort, as well as a higher activity of intracellular enzyme systems. Well-dosed physical exercise has an exceptional influence on human health, above all by regulating cholesterol blood level and electrolyte level of serum, whose minimal change can directly affect human health. This study was aimed to establish quantity and quality of organism response to physical exercise, in regard to level of daily training, by determining lipid fractions level in serum and electrolyte composition of serum. The study involved 50 healthy men in age between 20 and 25, divided into two groups. The first group was composed by physically untrained men, chosen by the random sample method. The other group of subjects was composed by 35 active sportsmen, chosen by direct selection for the best-trained ones among them. In order to reach a submaximal exertion, we used Astrand's test of submaximal exertion on the bicycle-ergometer. Blood samples were taken immediately before and after testing. The following parameters were determined in blood serum: high-density lipoproteins (HDL), low-density lipoproteins (LDL), triglyceride + + 2+ 2+ - content, as well as concentration of sodium (Na ), potassium (K ), calcium (Ca ), magnesium (Mg ) and chlorine (Cl) ions. On the base of our research we concluded that physical exercise of submaximal intensity did not lead to any quantitative and qualitative change of lipid fractions in blood serum of untrained persons. Physically inactive persons had higher serum concentrations of triglycerides and total cholesterol in regard to the investigated sportsmen. At the same time, sportsmen showed a higher HDL content of serum. Physical exertion in sportsmen led to a significant rise of triglycerides and highdensity lipoproteins content of serum, and the levels of total cholesterol and low-density lipoproteins did not changed + ++ significantly. Physical exertion of submaximal intensity in both studied groups caused a significant increase of Na , Ca and ++ + - Mg ion concentration, while concentration of K and Cl ions did not changed significantly. Numerous clinical studies showed that moderate aerobe exercise amplifies endothelial function and reduces cardiovascular risk

Old age can be defined as a variety of changes in structure and function which begin at the stage of reproductive maturity, and that changes are manifested as a lesser ability of adaptation and lesser way of defending from the influence of outside and inside factors. Neurons of sympathetic trunk, as well as the other neuron cells, are changeable during the life. Neurobiological, old age begins at the time of birth, because the number of neurons is not increasing, it's only getting lower, which means that neurons are post mitotic cells. The process of old age is increased with some degenerative changes at some diseases and its hard to know what belongs to, so called, physiologic way of getting old and what is pathologic. Concentration of lipofuscin in cells (pigment of old age), is the parameter for physiologic old age of a person. Concentration is changeable, and it depends from the tissue or the organ, concentration is controlled by the internal regulatory factors and the factors of environment as the way of nutrition, physical activity, stress and hygienic factors.

Work construe problems in children's protenuria.It is about physiology, pathological and insulated protenuria, also observation of examination stages of children with protenuria. It is about glomerul filtration and ultrafiltration barrier. Histochemical aspect show us that membrane is between palmately extensions and electromicroscopically aspect which indicate on subendotel part of basic membrane. About tubular absorption and removing of albumin from primary ultrafiltrate. Work is about proximal tubul and mechanism for reabsorption and transport of protein and peptid. Pathological protenuria is segmented on glomerul,tubul,hiper-production/overflow,and histuria. Work contains protenuria in different forms, transitiv, ortostatic and persistence. There are prepositions of three phases in examinations of protenuria

Periodontal disease is a chronic inflammatory disease that is largely attributable to infections with gram-negative bacteria and is characterised by both gingival inflammation and alveolar bone resorption. Beside macrophages, the second most common cells of the gingival inflammatory infiltrat are mast cells. Mast cells are heterogenous cell population which live from six months to one year. These cells are activated by differnt immunologic and non-immunologic signals. Activated mast cells can secrete a range of substances that regulate angiogenesis, tissue remodeling and wound healing, which include both degradation and synthesis of tissue components. Apart from that, mast cells have an important role in phagocytosis, antigen processing and presentation to T-cells. It is confirmed that gingival mast cells can express matrix metalloproteinases (MMPs) and the tissue inhibitors of metalloproteinases, TIMP-1 and TIMP-2. This indicates that mast cells are likely to play an important role in inflammation and tissue degradation in periodontal diseases.

Allergen-specific immunotherapy (SIT) is the practice of administering gradually increasing quantities of an allergen extractto an allergic subject to ameliorate the symptoms associated with the subsequent exposure to the causative allergen. The major objectives of SIT in alergy disorders are, in the short term, to reduce the allergic triggers precipitating symptoms, and, in the long term, to decrease allergy inflammation and nonspecific bronchial hyperreactivity when bronchial remodeling is not prominent. The mechanisms of SIT are complex but it was convincingly shown to act by modifying Th2 cell responses either by immune deviation (increase in Th0/Th1) or T cell anergy (decrease inTh2/Th0) or more likely both. Specific immunotherapy is the only treatment that may alterthe natural course of allergic disease.