1. Biallelic RFC1 expansions are a rare cause of early-onset and familial Parkinson's diseaseAnja Kovanda, Lara Šušmelj, Helena Jaklič, Tadeja Lukežič, Aleš Maver, Igor N. Petrović, Borut Peterlin, 2026, drugi znanstveni članki Ključne besede: CANVAS, neurodegenerative disease, vestibular areflexia syndrome, CANVAS, RFC1, PCR
Objavljeno v DiRROS: 18.03.2026; Ogledov: 172; Prenosov: 142
 Celotno besedilo (171,19 KB)
Gradivo ima več datotek! Več... |
2. ACE gene and male infertility : a South Slavic case-control study and multi-omics data integrationTanja Kunej, Rebeka Podgrajšek, Helena Jaklič, Alenka Hodžić, Martin Štimpfel, Olivera Miljanović, Momčilo Ristanović, Ivana Novaković, Dijana Plašeska Karanfilska, Predrag Noveski, Saša Ostojić, Alena Buretić-Tomljanović, Antun Gršković, Borut Peterlin, 2025, izvirni znanstveni članek Povzetek: Components of the renin-angiotensin system (RAS) are expressed in both female and male reproductive tracts, with angiotensin I converting enzyme (ACE) being an important component for male reproductive function, as shown in animal models. The most studied ACE polymorphism is the Alu insertion-deletion (I/D), which has been proposed to have a negative effect on male fertility. Given the conflicting evidence in the literature, we conducted a multicentric case-control study to investigate the association between the ACE Alu I/D polymorphism and impaired spermatogenesis. Using PCR amplification and agarose electrophoresis, we genotyped the ACE gene Alu I/D polymorphism in 745 South Slavic men. The study group consisted of 457 patients with impaired spermatogenesis, 239 with non-obstructive azoospermia (NOA) and 218 with oligoasthenoteratozoospermia (OAT) and a control group of 288 fertile men. No association was found between the Alu I/D polymorphism and these semen phenotypes, suggesting that it is not associated with NOA or severe OAT in this cohort. To provide a broader regulatory context, we also developed an integrative atlas of ACE regulatory elements by in silico multi-omics analysis using genomics databases and bioinformatics tools. Data integration revealed various regulatory mechanisms at multiple omics levels, including genomics, epigenomics, miRNAomics, transcriptomics, proteomics and epiproteomics. These include genomic variants with predicted deleterious effects, a CpG island, microRNAs (miRNAs) and post-translational modifications (PTMs). In addition, protein interaction analysis revealed that ACE is indirectly linked to several proteins previously associated with male infertility and is also targeted by miRNA previously associated with oligozoospermia. This comprehensive, multi-faceted approach, combining genetic association analysis with bioinformatics, provides insights into ACE regulation in its broader molecular context. These results emphasize the importance of further integrative multi-omics and systems biology research to better understand the role of ACE in male reproductive function.
Ključne besede: angiotensin I converting enzyme (ACE), male infertility, azoospermia, oligozoospermia, multi-omics
Objavljeno v DiRROS: 09.12.2025; Ogledov: 321; Prenosov: 192
Celotno besedilo (2,74 MB)
Gradivo ima več datotek! Več... |
3. Unraveling the complexity of skeletal dysplasias in the national health systemDorra Najjar, Aleš Maver, Ana Marija Peterlin, Helena Jaklič, Borut Peterlin, 2025, izvirni znanstveni članek Povzetek: Introduction: Skeletal dysplasia (SD) is a large and heterogeneous group of rare genetic disorders that affects bone and cartilage growth. These disorders are diagnosed based on radiographic, clinical, and molecular criteria. However, the diagnostics is challenging due to clinical and genetic heterogeneity. We present the experience of systematic use of comprehensive genetic testing in the national health system and the molecular epidemiology of SD in Slovenia. Methods: We retrospectively reviewed 470 patients with clinical features of SD, including prenatal, childhood, and adult patients referred for diagnostic genetic evaluation to the national genetic reference center over ten years. In 262 patients, whole exome or whole genome sequencing was performed, while direct gene sequencing was performed in 208 patients with a specific clinical diagnosis. Results: A definitive genetic diagnosis using NGS was achieved in 50% (n=131) of patients. Among the positive cases, 49.61% initially presented with a nonspecific diagnosis of SD, and genetic testing contributed to establishing the diagnosis. Moreover, we demonstrated high genetic heterogeneity in our SD cohort with 66 distinct causative genes, resulting in different types of SD. In detail, we detected 132 causative variants, of which 29 were novel, which expanded the mutational spectrum of SD. Furthermore, pathogenic copy number variants (CNVs) were identified in 4.55% of the total number of variants, highlighting the importance of CNV analysis in expanding the yield of molecular diagnosis of SD. Conclusion: With the systematic use of WES and WGS, we have significantly improved the diagnostic yield of SD in the national health system and access to genetic testing. Moreover, we found significant genetic heterogeneity, and we report the genetic epidemiology of SD in the Slovenian population.
Ključne besede: CNV, copy number variants, NGS, next-generation sequencing, diagnostic yield, molecular pathology, prenatal diagnosis, rare genetic diseases, skeletal dysplasia
Objavljeno v DiRROS: 10.11.2025; Ogledov: 460; Prenosov: 223
Celotno besedilo (1,11 MB)
Gradivo ima več datotek! Več... |
