Endocardial endothelium (EE) is a barrier which controls the passage of macromolecules and fluids between the blood and the adjacent miocardial interstitium. At the same time it is the place of synthesis of numerous endothelial mediators. Histamine as an inflammation mediator increases the permeability of the endothelium, but also has a positive inotropic and chronotropic effects on the heart through the activation of histamine H1 and H2 receptors. The aim of this study was to determine the importance of the role of endocardial endothelium in the effect of histamine on myocardial contraction in the conditions of histamine receptors blockade. The study was carried out on the samples of the right ventricle of the albino Wistar rats (n = 42, age 8 weeks, body mass 180-200g) presented in two experimental models. The first experimental model presented the right ventricle of the rat heart with an intact endocardial endothelium and the second with the endothelium chemically removed by immersion of the chamber in a 1% solution of Triton X-100. Histamine (1x10-4 mol/l) increases the contraction of the right ventricle of the heart with intact endocardial endothelium but also with the removed endocardial endothelium. The effect of the histamine on the contraction was significantly increased in the absence of endocardial endothelium (p<0.05). H1 receptor antagonist, pyrilamine (1x10-6 mol/l) significantly inhibites the positive inotropic effect of histamine on the heart in both groups, with or without endocardial endothelium. Modulatory role of endocardial endothelium in the effect of histamine after the receptors blockade by pyrilamine is not significant. H2 receptor antagonist, cimetidine (1x10-4 mol/l), blocks the positive inotropic effect of histamine on the heart reagardless of the preservation of the endocardial endothelium. Our results indicate the undoubted importance of the modulatory role of endocardial endothelial in the effect of histamine on myocardial contraction.

Cataract is a dysfunction of the lens of the eye caused by clouding. By far the most common type of cataract is the senile cataract. The immediate cause of the occurrence of cataract is unknown, but oxidative stress is considered important in its etiopathogenesis. The aim: to examine the intensity of oxidative stress, depending on the type and maturity of senile cataract, through the activity of the superoxide dismutase enzyme (SOD) in the aqueous humor of the patients diagnosed with senile cataract. The average activity of the superoxide dismutase enzyme in the aqueous humor of the patients with early nuclear cataract was 41.16 U/mL, which is a significantly higher value (p<0.01) when compared with that of the patients with other types of early cataract, as well as with that of the patients with total cataract (33.88 U/mL). With aging the activity of the superoxide dismutase enzyme decreases, hence the average activity of the enzyme was significantly lower (p<0.05) in the group of patients over 75 years of age (36.28 U/mL vs. 28.91 U/mL).

Basal cell carcinoma is a slow-growing malignant skin tumor and its often found in elderly patients on sun exposed areas that confirming chronic UV radiation. Demographic, clinical and histological characteristics of the patients have been analyzed of nodular type of basal cell carcinoma in order to determine correlation between localization, duration and tumor size. Database was searched for medical records of patients with nodular BCC evaluated in Health Center of Kosovska Mitrovica and Clinical Center of Nis during the period of 2006 through 2008 year with the focus on demographic characteristics, localization, duration, size and clinical and histological characteristics of the tumor. Results: 36 patients with nodular BCC, 14 female and 22 male, in average old between 72.5±7.26 years of age. Two thirds of patients is older than 60 years and only 3 (8.33%) male patients are younger than 60 years of age. 72.11% of patients living in rural areas unlike 27.77% that lives in urban areas. Nodular type is occurring more often in males on skin of frontal and zygomatical region and in females on zygomatic and nose region. We found that the size of the tumor is in close correlation with length of duration of illness. Nodal BCC is more common in elderly male patients. Nodular type is occurring more often in males on skin of frontal and zygomatical region with a different distribution among women.

Hronični B virusni hepatitis (HHB) i dalje predstavlja veliki zdravstveni svetski problem uprkos obaveznoj i univerzalnoj imunizaciji protiv infekcije hepatitis B virusom (HBV). Kod određenog broja bolesnika hronična hepatitis B virusna infekcija u prirodnom toku bolesti progredira ka cirozi i hepatocelularnom karcionomu te je primarni cilj antivirusne terapije HHB zaustavljanje progresije bolesti. Danas na tržištu postoje dve grupe lekova za lečenje HHB: a)imunomodulatorna terapija konvencionalim interferonom alfa (INF) i pegilovanim interferonom alfa 2 a ( PEG-INF), b) peroralna antivirusna terapija analozima nukleot(z)ida. Lamivudin je dugo bio jedini medikament na našem tržištu za lečenje HBV te je kod većine naših pacijenata došlo do razvoja rezistencije. Od pre dve godine, na tržištu Srbije se registruje novi oralni analog iz grupe nukleotida : tenofovir disoproksil fumarat (TDF). U radu smo analizirali 69 bolesnika sa hroničnim hepatitisom B lečenih u Klinici za Infektivne i tropske bolesti KCS Beograd u periodu od 2012 do 2014 godine. Svi bolesnici uključeni u ovo istraživanje prethodno su bili lečeni LAM, a nakon razvoja rezistencije na LAM, primenjivan je TDF. TDF je pokazao odličnu efikasnost, visoku barijeru za rezistenciju i vrlo malo neželjenih efekata u višegodišnjoj primeni. Naša iskustva sa primenom ovog leka nisu dugotrajna imajući u vidu njegovu krakotrajnu dostupnost na našem tržištu.

Aging of population leads to limitations in functional abilities and in activities of daily living (ADL) which are the essential elements of independent care of oneself. Limitations in performing these activities result in increasing need for assistance and institutionalizing of the elderly. The aim of this study was to investigate the influence of fear of movement, or kinesiophobia, on ADL in elder institutionalized people with chronic pain. The research included 60 individuals older than 65 suffering from chronic musculoskeletal pain, institutionalized in Gerontoloski Centar Nis. The participants` fear of movement was assesed by Tampa Scale of Kinesiophobia, performing ADL was assesed by Katz index and pain intensity was evaluated by Numerical Rating Scale. We found that a large number of participants had high degree of kinesiophobia (63%), as well as that there is statistically significant negative correlation between the values of Katz index and Tampa Scale (r=-0.583, p<0.01). There is no statistically significant negative correlation between the values of Numerical Rating Scale and Katz index (r=0.139, p<0.289). There is no statistically significant positive correlation between the values of Numerical Rating Scale and Tampa Scale (r=0.215, p=0.098). The research showed that kinesiophobia has influence on ADL in elder institutionalized people with chronic pain. Higher degree of fear of movement corresponds to greater dependence of the participants in performing ADL. Pain intensity influenced neither the fear of movement nor the dependence/independence in performing ADL.

Patient fear from dental intervention is the most common cause of permanent disposal of the visits to the dentist by the patient , and there arise some magic circle in which symptoms of disease becomes more intensive , which proportionally increase the already present fear and further delay the visits to the dentist . The ultimate outcome is compromised oral health with early loss of teeth and chewing function , speech , etc. The aim of work is to determine the frequency of fear from dental intervention , occurrence of pain during certain phases of tooth extraction , its intensity , and justified fear of the patient from the most common oral surgery . The study includes 96 patients , aged 16-45 years , of whom 55 were male and 41 were female . For the assessment of fear of dental intervention was used Korah modified anxiety scale consisted of four questions ,in which every question has an answer and they are scored on a five point Likert scale . To determine the prevalence of pain in various stages of extraction there was used interview about the pain made up of three questions , and the sample consisted of patients divided by Kore scale into high and very high anxiety person. People who have positively responded to the questionnaire, the pain was further determined with visual analogue scale. For statistical analysis we used hi square test at a significance of level p<0,05. Modified Kore scale in a group of very highly anxious individuals were classified as 8 (7.68%), highly anxious individuals 15 (14.4%), moderately anxious individuals 31 (29.76%)and in the group of people without anxiety 42 patients (40, 32%).From a total of 23 patients identified as high and very high anxiety , only three (14%) felt the pain during the observation and characterized as a mild by using visual analogue scale as mild. By using Hi-square test (p<0,05) there were significant differences in responses( x²=12,6>5,92) . Five patients (22,74%) felt the pain during anesthesia where was found statistically significant differences in responses (X ²=7.34> 5.91) . Two patients (8.7%) registered the pain during tooth extraction and all the pain was characterized as mild to moderate. There was no statistically significant difference using the Hi square in the responses (x²=15,69>5,91 za p<0,05). The frequency of dental anxiety in our sample was very high in comparison with similar studies in the west of Europe, and the possible cause among other things, can be considered as a lower level of education of the population on which we must work. The emergence of real pain in high and very high anxiety patients during tooth extraction is very small, which indicate the unjustified fear of this type of intervention .

Introduction: In adults the diagnosis of acute pyelonephritis and glomerulonephritis is primarily based on clinical and laboratory-biochemical testing. In patients where the clinical picture atypical, even if a person does not respond to therapy resorts to radiographic examination. Echotomographic examination is unavoidable in the diagnostic algorithm. Objective: The aim of this study was to establish the individual echotomographic parameters, as well as to determine their diagnostic power in patients with acute infections (pyelonephritis and glomerulonephritis), and comparing them with the appropriate reference tests. Materials and methods: We performed a cross sectional study in the period from October 2014. until May 2015. It included 50 patients with acute inflammation of the kidney which was made echotomographic examination of the abdomen and pelvis, within the Department of Radiological Diagnostics KBC "Dragisa Mišović-Dedinje" in Belgrade. The echotomographic examination of the kidneys included testing of numerous parameters that could indicate the existence of an acute inflammation of the kidney. For the gold standard, we take the findings obtained by CT (computed tomography) imaging of the abdomen and pelvis, as well as histopathological findings obtained by fine needle bio-psy. Results: At 50 patients with acute inflammation of the upper urinary tract, 41 patients (82%) had acute pyelonephritis, and 9 (18%) had acute glomerulonephritis. In 70% of patients with acute pyelonephritis (29 people) were present enlargement of the kidney where the test sensitivity was 79.3% and specificity of 91.7%. The accuracy of the method was 82.9% when the monitored parameters: loss of central echo complex and cortico-medullary differentiation. The sensitivity of the test in which the observed thickening of the pelvic and ureteric wall was 65% and specificity of 90%. The analysis of the presence of calculus in renal parenchyma leads to the values of sensitivity test of 54.8% and specificity of 80%. Hypoechoic focus in the renal parenchyma, enlargement of the kidneys and loss corticomedullar limits are parameters who with great sensitivity and specificity suggest acute glomerulonephritis. Conclusion: On the basis of high values of sensitivity and specificity of the test survey estimates that ultrasound has a required place in the following diagnostics algorithm. The use of echotomography that offer the possibility of high resolutive views, as well as the wide availability and good reproducibility of the method, the low cost of inspection, in favor of the first exploration ultrasound examination. Multidetector CT scan and fine needle biopsy remains the method of choice for the definitive diagnosis.