81. Microstructural analysis of tungsten single crystals irradiated by MeV W ions : the effect of irradiation dose and temperatureJanez Zavašnik, Andreja Šestan, Thomas Schwarz-Selinger, Esther Punzón Quijorna, Mitja Kelemen, Jan Predrag, Sabina Markelj, 2025, izvirni znanstveni članek Povzetek: We investigated the microstructural evolution of W(111) single crystals under high-energy self-ion irradiation at 290 K and 800 K, using complementary characterization techniques, including Scanning electron microscopy (SEM), Transmission electron microscopy (TEM), Rutherford backscattering spectrometry in channelling regime (RBS-C), Positron annihilation spectroscopy (PAS), and Nuclear reaction analysis (NRA). Irradiation with MeV W ions allowed for controlled defect formation, with dose and temperature significantly affecting defect type and distribution. At 290 K, interstitial defects evolved from dislocation loops at low doses (0.02 dpa) to dislocation networks at higher doses (0.2 dpa). In contrast, at 800 K, lower dislocation densities were observed, with nm-sized dots and isolated lines forming at 0.02 dpa and developing into longer dislocation lines (~30 nm) at 0.2 dpa. RBS-C spectra support these findings, showing a trend of increasing dislocation density with dose but decreasing with temperature. PAS analyses revealed mono-vacancies and small vacancy clusters (V2–V4) at 290 K, coalescing into larger clusters (V25–V50) at 800 K. NRA measurements indicated greater deuterium retention at 290 K than at 800 K, consistent with lower vacancy mobility at the lower temperature. Combined TEM, RBS-C, PAS, and NRA observations highlight increased vacancy mobility and defect recombination with temperature, forming larger vacancy clusters at 800 K. This comprehensive study provides quantitative insights into defect formation and evolution in W single crystals, presenting a comparative analysis of defect distributions across multiple techniques and revealing temperature-dependent mechanisms of microstructural change.
Ključne besede: heavy-ion irradiation, structural defects
Objavljeno v DiRROS: 11.12.2025; Ogledov: 107; Prenosov: 106
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82. Universal screening for familial hypercholesterolemia in preschool children and their families in Slovenia (FH-FAMILIES) : a protocol for a study of four-stage screening programMia Becker, Bernarda Vogrin, Jan Kafol, Barbara Čugalj Kern, Urh Grošelj, 2025, izvirni znanstveni članek Povzetek: Familial hypercholesterolemia (FH) is the most common metabolic disease, with prevalence estimated between 1:250 and 1:300. The affected individuals have a significantly higher risk for developing atherosclerosis and cardiovascular disease (CVD) compared to non-affected individuals. Early CVD can be prevented with early detection and treatment of FH. In Slovenia we have been conducting a national three-staged program of universal screening for FH of preschoolers. Goals: Our goal is to collect data for 5000 children, which is approximately one-quarter of one generation of preschoolers for the year 2023 (n = 5000). Methods: Our study includes both prospective and retrospective components and is a non-interventional cohort study. The prospective component began in 2023, when a questionnaire was distributed to multiple community health centers and outpatient practices in Slovenia. Pediatricians or school medicine specialists completed these questionnaires. The retrospective component involves our research team collecting the remaining necessary data from existing medical records. We are going to follow our algorithm for the implementation of the universal cholesterol screening program and seek all children that will be referred to the Pediatric Lipid Clinic at the University Children’s Hospital, University Medical Centre (UCH-UMC), Ljubljana, for further genetic testing. If a child has a positive genetic result, their parents and siblings will undergo genetic testing. Conclusions: Despite being a common genetic disorder, familial hypercholesterolemia (FH) is still largely underdiagnosed globally; fewer than 10% of affected individuals are thought to be identified. Early detection through effective screening is therefore essential to improve outcomes and prevent premature cardiovascular events.
Ključne besede: hypercholesterolemia, universal screening, preschoolers, total cholesterol, genetic testing
Objavljeno v DiRROS: 11.12.2025; Ogledov: 108; Prenosov: 38
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83. L-FABP as a potential biomolecular marker of liver graft injuryAna Kalamutova, Danaja Plevel, Mihajlo Djokić, Aleš Jerin, Blaž Trotovšek, Miha Petrič, 2025, izvirni znanstveni članek Povzetek: Background: In recent years, indications for liver transplantation have expanded, while the age of transplant recipients has significantly increased due to improvements in perioperative management. As clinical manifestations of posttransplant complications vary and are often nonspecific, the identification of appropriate biomarkers is important for the assessment of graft quality and early recognition of potential complications following liver transplantation. Liver-type FABP (L-FABP) is a small cytoplasmic protein found abundantly in hepatocytes and is involved in the intracellular transport of long-chain fatty acids. Elevated serum levels have been detected in acute and chronic liver failure, kidney failure, and some malignancies. Materials and Methods: We conducted a prospective, single-center study from July 2023 to January 2025, including 29 adult patients who underwent deceased-donor transplantation. Three patients were excluded due to inadequate sample withdrawals. Serum L-FABP was measured preoperatively and on postoperative days 1, 3, 5, 7, and 14. Clinical, surgical, and biochemical data were collected and analyzed using non-parametric statistical tests. Results: L-FABP levels were significantly higher on POD 7 in recipients of grafts from donors ≥ 65 years (p = 0.035), with no corresponding changes in standard liver function markers. While no significant differences in L-FABP levels were found between patients with and without infectious biliary or vascular complications (all p > 0.05), we proved a strong negative correlation between intraoperative blood transfusion volume and L-FABP levels on POD 5 (ρ = −0.677, p < 0.001) and POD 7 (ρ = −0.455, p = 0.025). Conclusions: Our findings suggest that L-FABP holds promise as a biomarker for the early detection of subclinical hepatic graft cellular injury, which is not detected by means of conventional biomarkers for liver function.
Ključne besede: liver transplantation, biomarker, L-FABP, hepatic graft injury, marginal liver graft
Objavljeno v DiRROS: 11.12.2025; Ogledov: 99; Prenosov: 50
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84. Palliative care for children and adults with inherited metabolic disease in Europe : an underutilised service for supportive treatment and careAnja Lee, Yngve Thomas Bliksrud, Michela Onali, Julia Neugebauer, Francois Eyskens, 2025, izvirni znanstveni članek Povzetek: Palliative care should be an integral part of follow-up for patients with life-limiting/life-threatening conditions, irrespective of age and diagnosis. Many patients with inherited metabolic disorders (IMD) have palliative care needs due to multi-systemic conditions without curative treatment options. To map the organisation and accessibility of palliative care across European IMD expert centres, and to explore the experiences of IMD physicians with palliative care, the European Reference Network for Hereditary Metabolic Disorders (MetabERN) invited physicians from all 103 member institutions to participate in a survey covering various aspects of palliative care. Ninety-two physicians from 63 institutions in 23 countries participated. A national plan or strategy for palliative care had been established in most countries (87%). Both children (91%) and adults (89%) had access to palliative care services. Most paediatric (86%) and many adult IMD physicians (67%) used advance care planning. A total of 284 referrals to palliative care were reported, mostly IMD patients with lysosomal and mitochondrial disorders, and neurological, respiratory, cognitive and gastrointestinal comorbidities. However, during the past 5 years, the majority of physicians (60%) had referred 20% or fewer of their deceased patients to palliative care. Although palliative care is available in most European IMD expert centres, only a small proportion of deceased IMD patients has been referred. The findings of this study indicate both a misconception and underutilisation of modern palliative care services. Addressing existing barriers is essential, and both IMD physicians and patients may need more information about available palliative care services and up-to-date indications for referral.
Ključne besede: palliative care, quality of life, patients, paediatric palliative care, inherited metabolic diseases, genetic disorders, MetabERN, The European Reference Network for Hereditary Metabolic Disorders
Objavljeno v DiRROS: 11.12.2025; Ogledov: 96; Prenosov: 45
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86. Hypotension-induced transverse spinal cord ischemiaPeter Kordiš, Fuad Colakovic, Eva Pipan, 2025, drugi znanstveni članki Povzetek: Background: Spinal cord infarction is rare, with spontaneous, non-traumatic cases being extremely uncommon. Severe atherosclerosis may predispose to spinal ischemia during episodes of systemic hypotension, particularly in mid-thoracic watershed zones. Case report: We present a case of a 56-year-old woman with schizophrenia, a history of heavy smoking, and chronic use of nonsteroidal anti-inflammatory drugs. She presented with ischemic lower limbs and hypotension, following a self-inflicted neck wound. Computed tomography angiography revealed extensive chronic atherosclerotic disease of the distal aorta and iliac arteries with collateral circulation but no acute occlusion. After surgical control of bleeding and stabilization, she was found to have flaccid paraplegia and sensory loss below the TH10 level. Magnetic resonance imaging confirmed acute spinal cord infarction with well-demarcated ischemia, that was treated conservatively. Despite prompt hemodynamic stabilization, her neurological deficits did not resolve. Conclusion: This case highlights spontaneous spinal cord infarction as a rare but serious complication of transient hypotension in patients with severe atherosclerosis. Prompt recognition is essential, though therapeutic options remain limited.
Ključne besede: spinal cord ischemia, hypotension, atherosclerosis, artery of Adamkiewicz, arteria radicularis magna
Objavljeno v DiRROS: 11.12.2025; Ogledov: 116; Prenosov: 38
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87. Adattamento e prevenzione di catastrofi sulla base degli ecosistemi : prospettive per le aree costiere del Nord AdriaticoA. Rosa, Rachele Dandolo, Eleonora Camastra, T. De Lorenzi, Saul Ciriaco, Suzana Škof, Liliana Vižintin, Alessandro Manzardo, Alberto Barausse, 2025, izvirni znanstveni članek Objavljeno v DiRROS: 11.12.2025; Ogledov: 117; Prenosov: 52
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88. Prepoznavanje neželenih učinkov zdravil na Interni kliniki Univerzitetnega kliničnega centra LjubljanaMatej Dobravc Verbič, Mojca Kerec Kos, Miran Brvar, 2025, pregledni znanstveni članek Povzetek: Farmakovigilanca zajema odkrivanje in obravnavo neželenih učinkov zdravil ter drugih težav, povezanih z zdravili. V Univerzitetnem kliničnem centru Ljubljana smo v okviru Centra za klinično toksikologijo in farmakologijo v preteklih letih izvedli več raziskav, osredotočenih na prepoznavanje in obravnavo neželenih učinkov zdravil na Interni kliniki. Posebno pozornost smo namenili ocenjevanju vzročne povezanosti med domnevnimi neželenimi učinki zdravil in povzročitelji. V ta namen smo razvili orodje, ki poleg objektivne ocene vzročne povezanosti po lestvici Naranjo vključuje tudi ločeni strokovni oceni zdravnika in raziskovalcev. Novo orodje omogoča razvrstitev večjega števila primerov med potrjene neželene učinke. Pri prepoznavi neželenih učinkov zdravil iz elektronske dokumentacije bolnikov pomembno vlogo igrajo ključne besede, ki zajemajo nespecifične in specifične ključne besede, imena zdravil in laboratorijske kazalce. Žal ima večina ključnih besed nizko napovedno vrednost, zato si v prihodnosti želimo razvoj programskih orodij, ki bodo omogočila kompleksnejše načine iskanja in prepoznave neželenih učinkov ter s tem zmanjšala količino zamudnega ročnega dela
Ključne besede: farmakovigilanca, neželeni učinki zdravi, ocena vzročne povezanost
Objavljeno v DiRROS: 11.12.2025; Ogledov: 114; Prenosov: 42
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89. Postural sway in multiple sclerosis patients : interaction of vision, surface, and fatigue effectsŽiga Kozinc, Eva Žura, Gregor Brecl Jakob, 2025, izvirni znanstveni članek Povzetek: Introduction: Postural control impairments are common in patients with multiple sclerosis (MS), resulting in postural instability and increased fall risk. Sensory inputs are crucial to maintain balance adequately. Additionally, fatigue is one of the common and most disabling symptoms of MS, possibly contributing to postural deficits. Previous studies have examined the effects of fatigue and altered sensory conditions on postural control in patients with MS. The present study aimed to extend this knowledge by jointly assessing these factors within the same experimental framework, providing additional insight into how fatigue modulates sensory contributions to balance. Methods: A total of 21 patients with MS (age = 41.1 ± 10.1 years; EDSS = 1.9 ± 1.0; disease duration = 6.8 ± 4.9 years) completed balance assessments on firm and compliant surfaces with both eyes open and eyes closed, before and after a 6-min walk test used to induce fatigue. Postural sway was quantified using sway velocity and root mean square (RMS). Results: There was a significant effect of surface on sway velocity (p < 0.001, η2 = 0.60), with a greater sway on the compliant surface compared to the firm surface. Fatigue significantly increased sway RMS (p = 0.023, η2 = 0.23) but did not affect sway velocity (p > 0.05). The absence of visual input (eyes closed) also significantly increased sway RMS (p = 0.001, η2 = 0.46). There was a significant interaction between surface and vision for sway RMS (p < 0.001, η2 = 0.54), with a larger effect of surface instability in the eyes-closed condition. Discussion: Patients with MS face increased challenges in maintaining postural control under conditions of fatigue, surface instability, and lack of visual input. Sway RMS may be more sensitive to these effects than sway velocity.
Ključne besede: balance control, sensory integration, proprioception, motor impairments, fall prevention, neurological disorders, physical fatigue
Objavljeno v DiRROS: 11.12.2025; Ogledov: 58; Prenosov: 35
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90. Pro-inflammatory markers as predictors of arterial thrombosis in aged patients with peripheral arterial disease post revascularizationAdriana A. Rodriguez Alvarez, Isabella F. Cieri, Mounika Naidu Boya, Shiv Patel, Aniket Agrawal, Sasha P. Suarez Ferreira, Christianah Alli, Shruti Sharma, Anahita Dua, 2025, izvirni znanstveni članek Povzetek: Introduction: Inflammation occurs in the initial stage of arterial atherosclerosis and serves as the first step in thrombus generation, with elevated inflammatory markers predicting myocardial infarction in coronary artery disease patients. Inflammation is known to alter the course of multiple diseases and can thus, also impact recovery post-treatment and surgical outcomes. Yet, there is a paucity of data regarding the relationship between inflammatory biomarkers and arterial thrombotic potential in peripheral artery disease (PAD) patients post-revascularization. Our pilot study attempts to fill this gap by evaluating if the expression of inflammatory biomarkers in PAD patients correlates with the incidence of thrombotic events post-revascularization. Methods: Plasma samples were prospectively collected from PAD patients who underwent revascularization from 2021 to 2023 at monthly time points for 6 months from the procedure. Patients were followed for a total of 6 months post-procedure and those who experienced thrombotic events were identified. Nine patients with thrombotic events and 16 with non-thrombotic events along with 5 healthy volunteers were analyzed. Plasma samples were analyzed for the following pro-inflammatory markers: IL-1β (Interleukin-1 beta), IL-6, and TNF-α (Tumor Necrosis Factor - alpha), GM-CSF (Granulocyte-Macrophage Colony-Stimulating Factor), IFNγ (Interferon-gamma), IL-8, MCP-1 (Monocyte Chemoattractant Protein-1). The Kruskal-Wallis test was performed to compare bio-inflammatory marker levels between groups. Results: A total of 303 patients were enrolled, of which 59 had thrombotic events. There were no differences between medications or disease burden between groups. Levels of circulating IL-6 and TNF- α were significantly higher in the thrombosis cohort compared to the non-thrombosis cohort (55 vs. 38, p < 0.02) and (159 vs. 110, p < 0.02) respectively. Although there was a trend toward significance for IL-1β between the thrombotic cohort and non-thrombotic cohort, it did not reach statistical significance (18 vs. 11.5, p = NS). There was no difference observed in aspirin's ability to dampen the inflammatory response between the two groups as all patients were on aspirin between the groups evaluated. Conclusion: Pro-inflammatory markers IL-6 and TNF-α are significantly increased in patients, 1 month prior to an arterial thrombotic event, as compared to patients without thrombotic events. These biomarkers could predict impending thrombosis in patients with PAD post-revascularization.
Ključne besede: inflammation, interleukin-6, peripheral artery disease (PAD), thrombosis, tumor necrosis factor-alpha
Objavljeno v DiRROS: 11.12.2025; Ogledov: 66; Prenosov: 36
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