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L. Ferhatbegović, Farid Ljuca, Z. Kusljugic, Katarina Kovačević, D. Mršić, Sabina Kušljugić, M. Selimović

SUMMARY The aim of this study was to examine the effect of the lipid parameter non-high-density lipoprotein cholesterol (non-HDL-C) on the occurrence of major cardiovascular event (MACE) in patients after first-time ST-elevation myocardial infarction (STEMI) treated with primary percutaneous intervention (pPCI) and implantation of drug-eluting stent (DES). Seventy-eight patients (54 male and 24 female, median age 58.62±11.14 years) with the diagnosis of first-time STEMI who were treated with pPCI with DES implantation in the period from January 2018 until January 2020 were included in the study. Patients were followed for two years of the intervention for the occurrence of MACE and its association with baseline non-HDL-C, as well as total cholesterol, LDL-C, HDL-C and triglycerides. During 2-year follow-up, 20 (25.6%) patients had MACE. There was no significant difference in baseline parameters such as age, hypertension, presence of diabetes mellitus, and post-interventional use of statin therapy between patients with and without MACE. The levels of baseline lipid parameters were significantly higher in patients who experienced MACE, as follows: total cholesterol (p=0.009), LDL-C (p=0.028) and non-HDL-C (p=0.007). Pearson χ2-test showed that both non-HDL-C and LDL-C were significant predictors of MACE occurrence during 2-year follow-up, but non-HDL-C had a more significant correlation than LDL-C (p=0.007 vs. p=0.028). Our initial report shows that baseline non-HDL-C was a more significant predictor of the occurrence of MACE after first-time STEMI than LDL-C, which reflects the importance of the residual risk of MACE occurrence while enabling identification and close monitoring of high-risk patients.

L. Monico, Koen Janssens, M. Cotte, Samuel M. Webb, F. Vanmeert, Victor Gonzalez, G. van der Snickt, K. Keune et al.

The application of X-ray methods (using conventional sources or synchrotron radiation) for investigating degradation phenomena in paintings has significantly increased in the last two decades. This rise is due to their ability to provide spatially resolved elemental, molecular, and structural information from the macroscopic to the nanoscopic levels. This review will focus on the application of latest-generation X-ray techniques, including X-ray fluorescence (XRF), X-ray absorption spectroscopy (XAS), and X-ray diffraction (XRD), to study the alteration processes of pigments in paintings. The first part outlines the fundamentals of XRF, XAS, and XRD techniques and then describes the corresponding instrumental set-ups used for non-invasive macro-scale mapping of paintings and synchrotron radiation-based X-ray analysis of paint micro-samples. Subsequent sections will cover advancements in X-ray data analysis software, workflow management systems, Open Science and FAIR data initiatives, alongside practical aspects of sample preparation and issues concerning X-ray-induced damage to paints. The final section will review degradation phenomena resulting from chemical changes of selected classes of pigments. This will involve describing key findings obtained from paintings, related micro-samples, and artificially aged paint mock-ups. The outcomes discussed in this review highlight their crucial role in developing effective monitoring and preventive conservation strategies for artworks highly susceptible to degradation within heritage sites and museums.

Dragoljub Bajić, M. Stepanović, Sanja Bajić, Miroslav Popović

To address the issue of groundwater vulnerability management and analysis, an algorithm was developed based on which the necessary research was conducted in the broader area surrounding the water source Novoselija used for water supply of the population in the city of Banja Luka (Republic of Srpska, Bosnia and Herzegovina). Within the GIS, as one of the spatial data techniques, the GOD method for vulnerability assessment was used. Data visualization within the GIS program package, combined with the aforementioned GOD method, enabled a clearer understanding of the spatial distribution of groundwater vulnerability in this area, which made it possible to delineate different zones: from negligible to extreme vulnerability. The high degree of the parameter has been determined in the zone of the actual water source and is associated with terrace and gravels sediments. In the alluvial sediment zone, located south of the water source, vulnerability has been assessed as extreme. In this area, there is certainly a potential risk of groundwater vulnerability to all pollutants, with a very rapid impact in most contamination scenarios. From the east and the west side, the aquifer in question is confined by flysch deposits of Cretaceous age, which are hydrogeologically characterized as conditionally “waterless” parts of the terrain, and within them, the vulnerability has been classified as negligible. The results of this research are also important for later delineation of the sanitary protection zone of the aquifer in question.

V. Otašević, Charlotte Gran, Nataša Milić, Jelena Ivanović, Sofija Kozarac, Vojin Vuković, B. Mihaljević, Nikolina Dukić et al.

Thrombosis is a common complication in cancer patients, with a substantial impact on morbidity and mortality. Diffuse large B-cell lymphoma (DLBCL) and other aggressive lymphomas carry a high venous thromboembolism (VTE) risk. Extracellular vesicles (EVs) have gained attention in recent research as a new potential biomarker for VTE development. To determine the profile and association of EVs with VTE in patients with DLBCL, we conducted a prospective cohort study on 62 patients diagnosed with DLBCL. A total of 11 patients (17.7%) developed VTE. The concentrations of platelet-derived EVs (PEVs), E-selectin+ EVs, P-selectin+ EVs, tissue factor (TF)-positive/CD20+ EVs, TF−/CD19+ EVs, TF−/CD45+ EVs, and TF−/CD20+ EVs were significantly higher in DLBCL patients compared to healthy controls. In contrast, the concentration of TF− PEVs was significantly lower in DLBCL patients compared to healthy controls. No statistically significant differences were observed in the concentrations of the EV profiles among the DLBCL patients with and without VTE. Using Cox regression analysis, we found that none of the observed EV populations demonstrated an association with overall survival (OS). In conclusion, patients with DLBCL have elevated concentrations of distinct EV populations—in particular, PEVs, E-selectin EVs, P-selectin EVs, TF+/CD20+ EVs, and TF− DLBCL/B-cell EVs (CD19, CD20, CD45)—compared to healthy controls. DLBCL patients exhibit a specific EV profile, which is not significantly related to the risk of VTE and OS outcomes. Our data provide an intriguing insight into EV profiles in patients with DLBCL. Additional research is needed to elucidate these findings further.

Amra Gadžo, Renata Lučić, Alma Osmanović Đaković

The paper examines the impact of budgetary accounting organization on the perception of corruption in the public sector, focusing on three key independent variables: the financial reporting framework, the accounting basis, and the level of independence of state auditing. The Corruption Perceptions Index (CPI), which measures the perceived level of corruption in the public sector, is used as an indicator of the dependent variable. The study includes data from 89 countries. For statistical analysis, categorical independent variables were encoded using the one-hot encoding method. Statistical tests were applied to assess the correlation between the independent variables and the CPI. The results show variations in correlation depending on the combination of financial reporting factors, the regulatory framework, and the quality of state auditing. The obtained results of multiple linear regression indicate that the model has a statistically significant impact on the CPI (p = 0.0217) and explains 21% of its variability. Keywords: public sector accounting, budgetary accounting organization, perception of corruption, public financial management reform.

N. Lasica, M. Motiwala, Christopher P. Golembeski, K. Arnautović

Intracranial epidermoid cysts are rare, benign lesions accounting for 1% of intracranial tumors.1 They may arise from misplaced squamous epithelium during neural tube closure, and are found in the paramedian position, cerebellopontine angle, or parasellar region with other locations considered rare.2-4 The far lateral approach and its extensions enables access and visualization of ventral and ventrolateral lesions at the craniocervical junction without retraction.5-15 A 32-year-old female presented with gait instability, visual disturbances, and severe headaches. MRI demonstrated a solid, non-contrast enhancing T1 hypointense and T2 hyperintense lesion in the right cerebellomedullary cistern with mass effect on cerebellum and brainstem, consistent with radiological findings of epidermoid cysts. The patient underwent far lateral suboccipital craniotomy with partial posterior medial condylectomy and C-1 hemilaminectomy while prone, which enabled unobstructed ventral view. A 4 hand (ie, 2 surgeon) microsurgical technique in tumor resection enabled dynamic, gentle tissue retraction and safe tumor resection. Apart from transient swallowing problems that resolved 2 weeks post-operation, the patient's postoperative course was uneventful. Follow-up MRI revealed gross total removal. This video demonstrates the steps, anatomy, and technical nuances for vascular and neural preservation during removal of epidermoid cysts in the cerebellomedullary cistern. To the best of our knowledge, this is the first operative video showing the resection of a pure cerebellomedullary cistern epidermoid cyst. The utility of fat graft dural closure enhancement decreased the risk of CSF leak. The patient provided consent. Institutional review board approval was not required for individual cases and thus was not sought.

A. Skrzat-Klapaczyńska, S. Antoniak, Svitlana Antonyak, K. Protopapas, Antonios Papadopoulos, D. Marić, Botond Lakatos, A. Verhaz et al.

Introduction The implementation of nationwide viral hepatitis C elimination programs is challenging in Central and Eastern European countries (CEEC). It is reasonable to start by targeting specific populations, such as people living with HIV (PLWH), who are at higher risk of acquiring HCV or developing HCV-related complications. Methods Euroguidelines in Central and Eastern Europe Network Group consists of experts in the field of infectious diseases from 26 countries in the region. Between April 26th and June 23rd 2023, the group performed an on-line survey consisting of 32 questions. The questionnaire assessed the status of HCV micro-elimination in 2022. Results Twelve HIV centers from 11 countries responded: Albania, Bosnia and Herzegovina, Croatia, Czech Republic, Estonia, Greece, Hungary, Macedonia, Moldova, Serbia and Ukraine. All centers screen for HCV antibody all PLWH at entry into care. The seroprevalence of anti-HCV was <5% in 5 centers (Albania, Croatia, Serbia, North Macedonia and Hungary), 30.2% in Estonia and 29% in Ukraine, Greece and Moldova had high seroprevalence as well, 15.3% and 15.6% respectively. The prevalence of HCV viremia in antibody-positive PLWH was very high in Greece (85%), while in most other treatment centers it ranged from 4.2% to 38.2%. There is also a screening policy of annual HCV-testing of HCV-antibody negative persons in all centers by either testing all PLWH or those considered at risk. Direct-acting antiviral agents (DAA) were not available in one country (Albania). Among PLWH who entered care in 2022, nine out of 12 ECEE centers reported cases of HCV/HIV coinfection, with five centers indicating that at least 50% of these individuals were HCV-viremic. Conclusions HCV screening in PLWH followed by access to DAA treatments were available in all but one center. Microelimination of HCV in PLWH in the majority of surveyed HIV treatment centers in CEEC has not been achieved and efforts to reach this goal need to be strengthened.

D. Čamo, A. Zahirović, D. Preldžić, T. Mutevelić, J. Isović, A. Maksimović

Stray dogs may be highly exposed to vector-borne pathogens (VBP), including zoonotic agents, and therefore may pose a high risk of spreading infection to other animals and humans. Our study is the first large-scale prevalence study of VBP in stray dogs in Canton Sarajevo, Bosnia and Herzegovina. During the period 2016–2018, a total of 3720 blood samples of stray dogs were screened by the SNAP 4Dx plus test for antibodies against Anaplasma spp., Ehrlichia spp., B. burgdorferi s.l., and D. immitis. The 910 dogs (910/3720, 24.46%) were seropositive for one or more CVBPs. The proportion of seropositive dogs against one, two, or three pathogens was 864 (23.23%), 43 (1.15%), and 3 (0.08%), respectively. The most prevalent canine VBP was Anaplasma spp. (21.59%), followed by B. burgdorferi s.l. (2.47%) and Ehrlichia spp. (1.13%). The lowest prevalence was recorded for D. immitis (0.5%). The number of seropositive dogs older than 1 year was 704 (704/2497, 28.19%), while the number of dogs younger than 1 year was 206 (206/1223, 16.84%). The most common dual coinfection detected was with Anaplasma spp. and B. burgdorferi s.l. (26/3720, 0.7%). The results show that stray dogs are exposed to at least one of these four CVBD pathogens. Since some of these pathogens cause zoonoses, controlling these infections is crucial for both veterinary and public health. These findings highlight the need for continuous serological monitoring of CVBD pathogens in stray dogs due to their risks to animal and human health.

Background Non-ST-elevation myocardial infarction (NSTEMI) represents a prevalent form of acute coronary syndrome associated with substantial early risk of adverse outcomes. Inflammatory and metabolic disturbances are increasingly recognized as key contributors to the disease. Hematologic indices such as the neutrophil-to-lymphocyte ratio (NLR), platelet-to-lymphocyte ratio (PLR), lymphocyte-to-monocyte ratio (LMR), systemic immune-inflammation index (SII), systemic inflammation response index (SIRI), and pan-immune-inflammation value (PIV), along with the triglyceride-glucose index adjusted for BMI (TyG-BMI), have emerged as promising prognostic markers. However, their dynamic behavior in early NSTEMI remains insufficiently explored. Materials and methods This prospective study included 170 patients hospitalized for NSTEMI at the University Clinical Centre Tuzla between February 2022 and January 2023. Hematologic and metabolic indices were calculated at admission and repeated 24 hours later. Patients were followed for three months to document major adverse cardiovascular events (MACE), including cardiovascular death, reinfarction, and urgent revascularization. The median age was 67 years, and 60.6% of patients were male. Hypertension, hyperlipidemia, and diabetes mellitus were the most common comorbidities. Results Significant 24-hour reductions were observed in NLR, PLR, SII, SIRI, and PIV (all p < 0.01), while C-reactive protein (CRP) levels more than doubled (p < 0.001). Patients who developed MACE showed persistently elevated inflammatory indices and smaller declines in PIV and SIRI. Change in SIRI (ΔSIRI) demonstrated the strongest predictive value (AUC = 0.63), followed by SII and TyG-BMI. Notably, reduced resolution of PIV and persistently elevated TyG-BMI were significantly associated with adverse outcomes. Overall, MACE occurred in 51.2% of patients, including a 14.7% mortality rate. Conclusion Early changes in systemic inflammation and metabolic stress, particularly SIRI and TyG-BMI dynamics, offer valuable prognostic insight and may enhance early risk stratification in NSTEMI patients.

Daniel F. Schmidt, E. Makalic

We consider the problem of exact maximum likelihood estimation of potentially high‐order () autoregressive models. We propose an extremely fast coordinate‐wise algorithm for fitting autoregressive models. This fast algorithm exploits several properties of the negative log‐likelihood when parameterised in terms of partial autocorrelations. We consider extensions to learning a single autoregressive model from multiple time series and to the more general case of regressions with autoregressive residuals. An implementation of the coordinate‐wise descent algorithm is shown to be the orders of magnitude faster than competing algorithms and appears to be the fastest known algorithm for maximum likelihood estimation of autoregressive models.

Zhiguang Zhang, Chalchisa Abdeta, M. Chelly, J. Cruz, Leyna Germana, Fazlollah F Ghofranipour, Amy S. Ha, A. El Hamdouchi et al.

BACKGROUND Few questionnaires with established measurement properties can globally measure sleep in preschoolers and sleep-related family practices. OBJECTIVE To examine (1) concurrent validity of the SUNRISE parent questionnaire against an accelerometer for measuring sleep in preschoolers and (2) test-retest reliability of the questionnaire for sleep and related family practices. METHODS Sleep was measured using the questionnaire and Actigraph GTX3+ accelerometer using a decision-tree algorithm and the Sadeh algorithm in 1737 preschoolers (4.4±0.6years) from 30 countries. Concurrent validity was examined using correlation analysis (duration, timing, and quality), paired t test or the Wilcoxon signed-rank test, Bland-Altman plot (duration, timing), and analysis of sensitivity, specificity, and accuracy (variability). Test-retest variability was examined for sleep and family practice variables in a subsample of 163 participants (4.3±0.6years) from eight countries. RESULTS Questionnaire measures of sleep timing and duration were correlated with the accelerometer measures (r=0.43-0.75; p<.001). Although statistically significant mean differences were observed between questionnaire and accelerometer measures of sleep timing and duration variables, the difference in nighttime sleep duration had a small effect size (-14 min/d; Cohen's d=-0.2). The questionnaire was less able to provide adequate measurement for sleep quality and variability. High levels of reliability were observed for sleep (ICC=0.63-0.83; Kappa=0.53-0.62) and family practice (ICC=0.81-0.94; Kappa=0.73-0.86) variables. CONCLUSION The SUNRISE questionnaire appears reliable in assessing preschooler sleep characteristics and related family practices, particularly in disadvantaged settings. It could be used in global surveillance of nighttime sleep duration and in studies examining associations of sleep timing and duration with health indicators in preschoolers.

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