Molecular regulatory mechanisms of lung cancer initiation and progression are poorly understood. Role of micro RNA (miRNA) 19a in lung cancer is still controversial, as well. Treatments of non-small-cell lung cancer (NSCLC), particularly of the squamous subtype are limited. However increasing evidence point many molecular markers as potential prognostic and therapeutic tools. Purpose of this study was to evaluate differences in miR-19a, as well as miR-126 and let-7b expression profiles between NSCLC tumor tissue and healthy lung tissue. Also, the purpose was to evaluate the relationship of miR-19a, miR-126 and let-7b expression to survival outcomes in NSCLC patients but to evaluate the differences of their prognostic values between squamous and adenocarcinoma subtypes. 50 non-small lung cancer patients (32 squamous and 18 adenocarcinoma) and 45 healthy individuals were included. miRNA expression was detected by quantitative real-time polymerase chain reaction. Microvascular density was immunohistochemicaly quantified by factor VIII-related antigen. One- and two-years survival outcomes were observed. Expression of anti-angiogenic miR-19a, miR-126 and let-7b were significantly lower in tumour tissue compared to control lung tissue. Low miRNAs expression correlated with worse progression-free survival in both squamous and adenocarcinoma of the lung. Poor overall survivals were associated with low miRNAs expression only in the squamous lung cancer. Besides miR-126 and let-7b, our observations confirm also anti-angiogenic role of miR-19a in NSCLC patients and suggest the potential new target therapy in squamous lung cancer.

BACKGROUND: Pulmonary embolism (PE) is many times life treating disease, and the diagnosis should be achieved as soon as possible. Presence of fever may be or not present at the start of PE. Haemoculture should be performed any time if PE is linked with fever. It is very important to check out any symptom and sign of PE. D-dimmer may only exclude the diagnosis, but for this purpose it is very important. AIM: To analyze the most important predictors for clinical course and outcome of septic or no septic PE: METHODS: Patients with PE treated in Department of Pulmology in General Hospital Tesanj. PE was considered if Geneve score was five points or more. For any patient CT scan of the chest, chest X-ray at admission, and 4th, 7th and 14th day of hospitalization. Lactat-dechidrogenase, Creatin-kinase, CRP, D-dimmer, ECG and blood gas analyzes were performed, so. RESULTS: During one year of follow up 36 patients were considered for PE, according to Geneve score, among them 11 with septic embolie. In patients with no septic PE no changes on control Chest X-ray were seen, but in any of septic ones X-ray appearance showed progression. Other parameters were nearly the same, with moderate higher level of CRP in PE. The gold standard for diagnosis of PE rest double scintigrafic imaging of the lung, with ventilation and perfusion phase. D-dimmer is very useful parameter to exclude if PE is not occurred. CONCLUSION: The most important parameter to distinguish septic or no septic PE was dynamic changes of chest X-ray appearance with substantial more progression in septic than in non septic ones.

INTRODUCTION Every clinical trial has to meet all ethical criteria in addition to the scientific ones. The basic ethical principles in the clinical trials are the following: nonmaleficence, beneficence, respect for autonomy and the principle of justice. OBJECTIVE The aim of the study was to analyse clinical cases with the outcomes leading to the changes in regulatory-ethical framework related to the clinical trials, as well as the outcomes of key clinical trials that influenced the introduction of the ethical principles into clinical trials. METHODS This was a descriptive research (methods of analysis and documentation; desk analysis of the secondary data). RESULTS By analysing the cases from the secondary sources as well as clinical and ethical outcomes, it may be noticed that the codes, declarations and regulations have been often preceded by certain events that caused their adoption. Moral concern and public awareness of the ethical issues have initiated not only the development of numerous guidelines, codes, and declarations, but also their incorporation into the legislative acts. CONCLUSION It is desirable that ethical instruments become legally binding documents, because only in this way will be possible to control all phases of the clinical trials and prevent abuse of the respondents.

The process of domestication has arguably provided dogs (Canis familiaris) with decreased emotional reactivity (reduced fear and aggression) and increased socio-cognitive skills adaptive for living with humans. It has been suggested that dogs are uniquely equipped with abilities that have been identified as crucial in cooperative problem-solving, namely social tolerance and the ability to attend to other individuals’ behaviour. Accordingly, dogs might be hypothesised to perform well in tasks in which they have to work together with a human partner. Recently, researchers have found that dogs successfully solved a simple cooperative task with another dog. Due to the simplicity of the task, this study was, however, unable to provide clear evidence as to whether the dogs’ successful performance was based on the cognitive ability of behavioural coordination, namely the capacity to link task requirements to the necessity of adjusting one’s actions to the partner’s behaviour. Here, we tested dogs with the most commonly used cooperative task, appropriate to test behavioural coordination. In addition, we paired dogs with both a conspecific and a human partner. Although dogs had difficulties in inhibiting the necessary action when required to wait for their partner, they successfully attended to the two cues that predicted a successful outcome, namely their partner’s behaviour and the incremental movement of rewards towards themselves. This behavioural coordination was shown with both a conspecific and a human partner, in line with the recent findings suggesting that dogs exhibit highly developed socio-cognitive skills in interactions with both humans and other dogs.

Introduction: Factors of cardiovascular risk (CVR) are often grouped in cases with diabetes mellitus (DM) with significant increasment of risk for CV disease . The aim of this research is to determine the frequency of CVR and and total CVR in cases with DM and to investigate connection of CRP of other factors of CVR in total cardiovascular risks. Material and methods: In 92 cases with DM weist values were taken as well as body mass index (BMI), blood pressure, sugar in blood, cholesterol, triglycerides, C reactive protein (CRP) and according to SCORE system the 10 year period of CVR were determined. Results: Out of 92 tested cases with age 55,22± 8,3 years, 63,05% were males and 36,95% were women, 81,5% were with values of sugar in blood >7mmol/l, 44,6% were with values of HbA1C>7% and 63,0% >6,5%. The value of cholesterol were >4,5mmol/l in 87%, triglycerides >1,7mmol/l in 78.3% of tested cases. 81,5% of tested cases were overweight and 49% with larger weight values. Average cardiovascular factor according to SCORE system was 3, 92± 3,7% with significant difference among sexes (M-4,86; W-2,32, p3mg/l) 52% of tested cases were with high cardiovascular risk. There is significant positive correlation between CRP and cholesterol level (p<0, 01), triglycerides, blood in sugar, HbA1c and upper values of blood pressure (p<0, 05). Significant correlation between CRP and total cardiovascular risk (p=0, 63) was not evident. Conclusion: Cases with diabetes mellitus have high level of non regulated cardiovascular risk factors. Even though there is significant correlation between CRP and and pressure values, sugar in blood, HbA1c, cholesterol, triglycerides, significant correlation between CRP and total cardiovascular risk in cases with diabetes mellitus is not evident.

Functional connectivity between brain regions during swallowing tasks is still not well understood. Understanding these complex interactions is of great interest from both a scientific and a clinical perspective. In this study, functional magnetic resonance imaging (fMRI) was utilized to study brain functional networks during voluntary saliva swallowing in twenty-two adult healthy subjects (all females, years of age). To construct these functional connections, we computed mean partial correlation matrices over ninety brain regions for each participant. Two regions were determined to be functionally connected if their correlation was above a certain threshold. These correlation matrices were then analyzed using graph-theoretical approaches. In particular, we considered several network measures for the whole brain and for swallowing-related brain regions. The results have shown that significant pairwise functional connections were, mostly, either local and intra-hemispheric or symmetrically inter-hemispheric. Furthermore, we showed that all human brain functional network, although varying in some degree, had typical small-world properties as compared to regular networks and random networks. These properties allow information transfer within the network at a relatively high efficiency. Swallowing-related brain regions also had higher values for some of the network measures in comparison to when these measures were calculated for the whole brain. The current results warrant further investigation of graph-theoretical approaches as a potential tool for understanding the neural basis of dysphagia.