Publications by authors named "Debeljak M"

Background: Arthrogryposis-renal dysfunction-cholestasis (ARC) syndrome, a rare autosomal recessive disorder, exhibits genetic heterogeneity with the VIPAS39 gene pathological variants being a distinct contributor.

Results: We present two related patients from Kosovo, describing the clinical, genetic, and therapeutic aspects of the syndrome. The identified novel VIPAS39 pathological variants (c.

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  • Ductal carcinoma in-situ (DCIS) is a non-invasive breast cancer type that makes up about 25% of breast cancer cases, but it often leads to unnecessary aggressive treatment despite many cases never progressing to invasive cancer.
  • A study analyzed 197 breast tissue samples to explore molecular changes in DCIS, using techniques like mRNA expression and DNA analysis to compare progressing versus non-progressing cases.
  • The research found significant molecular differences among DCIS subtypes and between DCIS and invasive breast cancer, highlighting the complexity of DCIS and the need for more tailored approaches to assess risk and treatment.
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Background And Aims: In contrast to extensively studied hypercholesterolemia, knowledge of hypocholesterolemia is limited. This study aims to assess the prevalence, clinical characteristics, and genetics of children and adolescents with hypocholesterolemia.

Methods: This national prospective cross-sectional cohort study was part of Slovenia's universal opt-out cholesterol screening program.

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Childhood obesity is a significant global health challenge with rising prevalence over the past 50 years, affecting both immediate and long-term health outcomes. The increase in prevalence from 0.7% to 5.

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Congenital heart disease (CHD) is the most commonly detected congenital anomaly and affects up to 1% of all live-born neonates. Current guidelines support the use of chromosomal microarray analysis (CMA) and next-generation sequencing (NGS) as diagnostic approaches to identify genetic causes. The aim of our study was to evaluate the diagnostic yield of CMA and NGS in a cohort of neonates with both isolated and syndromic CHD.

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  • A study at the University Medical Centre, Ljubljana analyzed the management of temporal bone paragangliomas from 2011 to 2023, reviewing 23 cases, with 19 patients undergoing surgery and 4 receiving radiotherapy due to tumor progression.
  • Results indicated that surgical removal for classes A and B tumors is generally effective, while radiotherapy serves as a reliable alternative for managing tumors that continue to grow after surgery is declined.
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Better models are needed to identify active drugs to treat pancreatic adenocarcinoma (PAC) patients. We used 3D hanging drop cultures to produce spheroids from five PAC cell lines and tested nine FDA-approved drugs in clinical use. All PAC cell lines in 2D culture were sensitive to three drugs (gemcitabine, docetaxel and nab-paclitaxel), however most PAC (4/5) 3D spheroids acquired profound chemoresistance even at 10 µM.

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  • The study examined the impact of micro-threaded stem taper surfaces on issues like premature failures, aseptic loosening, and infection in cementless hip replacements.
  • Researchers analyzed both new and retrieved stem tapers using advanced techniques like SEM and EDS to understand their surface properties and corrosion behavior.
  • Findings indicated that ceramic heads on hip implants led to lower corrosion rates and fewer premature failures, suggesting they are beneficial for improving the longevity of total hip arthroplasty.
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In this study, we aimed to identify patients within our B-ALL cohort with altered . Our objective was to use a comprehensive analysis approach to characterize the types of genetic changes, determine their origin (somatic/germline), and analyze the clinical outcomes associated with them. A consecutive cohort of 99 patients with B-ALL treated at the Children's Hospital of the UMC Ljubljana according to the ALL IC-BFM 2009 protocol was included in our study.

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Phenols, and especially their nitrated analogues, are ubiquitous pollutants and known carcinogens which have already been linked to forest decline. Although nitrophenols have been widely recognized as harmful to different aquatic and terrestrial organisms, we could not find any literature assessing their toxicity to terrestrial plants. Maize (monocot) and sunflower (dicot) were exposed to phenolic pollutants, guaiacol (GUA) and 4-nitroguaiacol (4NG), through a hydroponics system under controlled conditions in a growth chamber.

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Introduction: The occurrence of prolactinomas in sex hormone treated patients with central hypogonadism is extremely rare.

Case Presentation: We present a Caucasian male patient who was diagnosed with Kallmann syndrome (KS) at age 15 years. Testosterone treatment was started.

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For the improvement of surface roughness, titanium joint arthroplasty (TJA) components are grit-blasted with AlO (corundum) particles during manufacturing. There is an acute concern, particularly with uncemented implants, about polymeric, metallic, and corundum debris generation and accumulation in TJA, and its association with osteolysis and implant loosening. The surface morphology, chemistry, phase analysis, and surface chemistry of retrieved and new AlO grit-blasted titanium alloy were determined with scanning electron microscopy (SEM), X-ray energy-dispersive spectroscopy (EDS), transmission electron microscopy (TEM), X-ray photoelectron spectroscopy (XPS) and confocal laser fluorescence microscopy, respectively.

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Antithrombin (AT) deficiency increases the risk for venous thromboembolism, therefore, a highly sensitive assay to identify this condition is crucial. The aim of this paper was to perform a meta-analysis comparing AT activities measured by different AT activity assays in patients with heparin binding site AT deficiency. In addition, the diagnostic sensitivity of selected assays was compared depending on the available data.

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Phosphoribosylpyrophosphate synthetase 1 (PRS-I) is an enzyme involved in nucleotide metabolism. Pathogenic variants in the are rare and PRS-I deficiency can manifest as three clinical syndromes: X-linked non-syndromic sensorineural deafness (DFN2), X-linked Charcot-Marie-Tooth neuropathy type 5 (CMTX5) and Arts syndrome. We present a Slovenian patient with PRS-I enzyme deficiency due to a novel pathogenic variant - c.

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Our study aimed to identify relevant transcriptomic biomarkers for the Wilms tumor, the most common pediatric kidney cancer, independent of the histological type and stage. Using next-generation sequencing, we analyzed the miRNA profiles of 74 kidney samples, which were divided into two independent groups: fresh frozen tissue and formalin-fixed paraffin-embedded tissue samples. Subsequent mRNA expression profiling and pathway analysis were performed to establish the interplay and potential involvement of miRNAs and mRNA in the Wilms tumor.

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Haploinsufficiency of A20 was first described in 2016 as a new autoinflammatory disease that clinically presents as early-onset Behcet's disease. After the publication of the first 16 cases, more patients were diagnosed and described in the literature. The spectrum of clinical presentation has expanded.

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  • Familial hypobetalipoproteinemia (FHBL) is a genetic disorder that affects cholesterol levels and can lead to various health issues, including liver disease and vitamin deficiencies.
  • A pediatric patient and their family underwent genetic testing, revealing a novel variant in the gene linked to FHBL, affecting protein production and contributing to their health problems.
  • The study emphasizes the importance of genetic testing and dietary management to prevent complications from low cholesterol levels and associated vitamin deficiencies in affected individuals.
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Aicardi-Goutières syndrome (AGS) is a genetically determined early-onset progressive encephalopathy caused by mutations leading to overexpression of type I interferon (IFN) and resulting in various clinical phenotypes. A gain-of-function (GOF) mutation in the gene is associated with robust production of type I IFN and activation of the Janus kinase (JAK) signal transducer and activator of the transcription (STAT) pathway, which can cause AGS type 7. We detail the clinical case of an infant who initially presented with pneumonia (PCP), had recurrent respiratory infections, and was later treated with a JAK inhibitor, baricitinib, because of a genetically confirmed GOF mutation in the gene.

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  • Manganese superoxide dismutase-2 is important for protecting cells from mitochondrial oxidative damage, and a genetic variation in its targeting sequence has been linked to diseases like prostate cancer.
  • Research by Paller et al. showed that patients with the Ala/Ala genotype saw an increase in PSA doubling time when treated with pomegranate and grape extract antioxidants.
  • A new pyrosequencing assay was developed to detect a specific SNP (rs_4880) to identify men with castrate-resistant prostate cancer who might benefit from antioxidant therapy, and the assay has shown to be both reliable and accurate since its implementation in May 2018.
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BACKGROUND Niemann-Pick disease (NPD) type A is an autosomal recessive lipid storage disorder caused by acid sphingomyelinase deficiency due to a mutation in the SMPD1 gene. Type A is the most severe phenotype of NPD, with early onset in infancy and unfavorable outcome in early childhood. CASE REPORT An 11-month-old boy with hepatosplenomegaly, elevated liver transaminases, and faltering growth was admitted to our hospital for further assessment of potential liver disease.

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Heterozygous variants in the gene, which encodes the B-type natriuretic peptide receptor (NPR-B), a regulator of skeletal growth, were reported in 2-6% cases of idiopathic short stature (ISS). Using next-generation sequencing (NGS), we aimed to assess the frequency of variants in our study cohort consisting of 150 children and adolescents with ISS, describe the phenotypic spectrum with a growth pattern including birth data, and study the response to growth hormone (GH) treatment. A total of ten heterozygous pathogenic/likely pathogenic variants and two heterozygous variants of uncertain significance were detected in twelve participants (frequency of causal variants: 10/150, 6.

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  • DNASE1L3 is an enzyme linked to the breakdown of chromatin from dying cells and is associated with lupus, but its role in interferon signaling in humans is not fully understood.
  • In this study, researchers analyzed five new patients with rare DNASE1L3 mutations, finding that they exhibited a temporary increase in interferon-stimulated genes during disease activity.
  • The findings underscore the severity of DNASE1L3 deficiencies, which often lead to conditions like lupus nephritis and other serious symptoms, with additional patients reviewed revealing a general trend of poor outcomes.
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  • - The study focuses on three family members with a newly identified genetic mutation causing Nicotinamide nucleotide transhydrogenase (NNT) deficiency, leading to primary adrenal insufficiency (PAI) and other symptoms.
  • - The two eldest siblings were diagnosed after an adrenal crisis, while the youngest was identified through genetic screening despite showing no symptoms.
  • - Findings included isolated glucocorticoid deficiency, normal cortisol metabolism, slow pubertal development, and low bone density, but no heart structural issues were noted; this research is significant for its detailed patient descriptions.
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Monogenic obesity is a severe, genetically determined disorder that affects up to 1/1000 newborns. Recent reports on potential new therapeutics and innovative clinical approaches have highlighted the need for early identification of individuals with rare genetic variants that can alter the functioning of the leptin-melanocortin signalling pathway, in order to speed up clinical intervention and reduce the risk of chronic complications. Therefore, next-generation DNA sequencing of central genes in the leptin-melanocortin pathway was performed in 1508 children and adolescents with and without obesity, aged 2-19 years.

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