98%
921
2 minutes
20
Objectives: This study aimed to characterize the genomic epidemiology of human adenoviruses (HAdVs) in Hubei, China, using metagenomic next-generation sequencing (mNGS).
Methods: In total, 25 HAdV-positive samples collected from 21 pediatric patients were sequenced and subjected to mNGS using the NextSeq 550 and GenoLab M sequencing platforms. The metagenomic data were assembled for molecular typing, phylogenetic and recombination analyzes.
Results: We assembled 50 HAdV genomes, 88% (22/25) genomes from GenoLab M, and 84% (21/25) genomes from NextSeq 550 have perfect alignments to reference genomes with greater than 90%. The most fully assembled 25 genomes were categorized into 7 HAdV genotypes, the most abundant of which were HAdV-B3 (9/25) and HAdV-C2 (6/25). Phylogenetic analyzes revealed that the newly isolated HAdV-B3 strains diverged into separate clusters according to their genotypes. Vigilance is needed that HAdV-B3 isolates have begun to form new distinct clusters. High nucleotide identity was observed in the whole genome level within the same HAdV genotypes, while marked differences of three capsid genes across HAdV genotypes were noted. The high nucleotide diversity regions were concordant with the reported hypervariable regions. Further, three recombinant strains were identified: S64 and S71 originated from the parental strains HAdV-B14 and HAdV-B11, and S28 originated from HAdV-C1, HAdV-C5, and HAdV-CBJ113. GenoLab M and NextSeq 550 showed comparable performance with respect to data yield, duplication rate, human ratio, and assembly completeness.
Conclusion: The sequencing quality and assembly accuracy showed that mNGS assembled genomes can be used for subsequently HAdV genotyping and genomic characterization. The high nucleotide diversity of capsid genes and high frequency of recombination events has highlighted the necessity for HAdV epidemiological surveillance in China.
Download full-text PDF |
Source |
---|---|
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC10060807 | PMC |
http://dx.doi.org/10.3389/fmicb.2023.1153728 | DOI Listing |
Anim Reprod Sci
September 2025
Department of Biomedical & Clinical Sciences (BKV), BKH/Obstetrics & Gynecology, Faculty of Medicine and Health Sciences, Linköping University, Linköping SE-58185, Sweden.
Embryo transfer (ET) is a valuable reproductive technology in pigs, albeit its efficiency remains significantly lower than that of natural mating or artificial insemination (AI), owing to high embryonic death rates. Critical for embryo survival and pregnancy success is the placenta, which supports conceptus development through nutrient exchange, hormone production, and immune modulation. Alterations in placental development and function may therefore underlie the reduced efficiency of ET.
View Article and Find Full Text PDFAnn Rheum Dis
August 2025
Department of Pediatrics, Division of Pediatric Rheumatology, Hacettepe University Faculty of Medicine, Ankara, Türkiye; Translational Medicine Laboratories, Pediatric Rheumatology Unit, Hacettepe University, Ankara, Türkiye. Electronic address:
Objectives: Familial Mediterranean fever (FMF) is traditionally viewed as an autosomal recessive autoinflammatory disorder. However, a significant subset of patients harbouring a single pathogenic MEFV mutation exhibit a clinical phenotype indistinguishable from that of homozygous patients. We aimed to compare the transcriptomic profiles of patients carrying a single pathogenic mutation who exhibit the classical FMF phenotype with those of healthy carriers (with 1 pathogenic mutation), as well as with homozygous or compound heterozygous patients (with 2 pathogenic mutations), to identify differential molecular signatures and potential diagnostic pathways.
View Article and Find Full Text PDFMicrobiol Spectr
September 2025
Research Service, Iowa City Veterans Healthcare System, Iowa City, Iowa, USA.
There are limited data directly comparing SARS-CoV-2 sequencing methods using two major commercial approaches, Oxford Nanopore Technologies Clear DX (ONTDX) and Illumina. RNA was extracted from 1,513 SARS-CoV-2 RNA-positive respiratory samples, split into two aliquots, and sequenced using both ONTDX and Illumina sequencing methods. FASTQ sequences generated by the ONTDX and Illumina (550 or 2,000) platforms used to test these samples were analyzed using either the same assembly and alignment strategy or using the platform default methodologies.
View Article and Find Full Text PDFBiomedicines
June 2025
Genomic Medicine Laboratory UILDM, IRCCS Santa Lucia Foundation, 00179 Rome, Italy.
: Pathogenic variants in the gene are implicated in a wide spectrum of Inherited Retinal Dystrophies (IRDs), which show significant phenotypic heterogeneity. This study combines genomic, clinical, and instrumental data, including BCVA, OCT, ERG, and visual field testing, using a multimodal approach to identify known and novel variants, with the aim of refine genotype-phenotype correlations and improving the diagnosis of IRDs. : A total of 830 Italian subjects diagnosed with IRDs by the multimodal clinical approach underwent WES on the Illumina Next-Seq 550 system.
View Article and Find Full Text PDFInt J Mol Sci
June 2025
Department of Molecular Biology, Faculty of Pharmaceutical Sciences in Sosnowiec, Medical University of Silesia in Katowice, Jednosci 8, 41-200 Katowice, Poland.
The leading causes of pediatric arterial ischemic stroke (PAIS) are arteriopathies, which refer to pathologies of the arterial walls in the brain. Since traditional risk factors for cardiovascular diseases in children play a smaller role than in adults, it can be supposed that genetic factors may be of particular importance in this age group. Therefore, this study aimed to identify mutations affecting the formation of vascular wall pathologies, which can subsequently lead to ischemic stroke.
View Article and Find Full Text PDF