659 results for ""option,com_discussions"+y+19"

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• Presence of rare potential pathogenic variants in subjects under 65 years old with very severe or fatal COVID‑19

  Rare variants affecting host defense against pathogens could be involved in COVID‑19 severity and may help explain fatal outcomes in young and middle‑aged patients. Our aim was to report the presence of rare genetic variants in certain genes, by using whole exome sequencing, in a selected group of COVID‑19 patients under 65 years who required intubation or resulting in death (n = 44). To this end, different etiopathogenic mechanisms were explored using gene prioritization‑based analysis in which genes involved in immune response, immunodeficiencies or blood coagulation were studied. We detected 44 different variants of interest, in 29 different patients (66%). Some of these variants were previously described as pathogenic and were located in genes mainly involved in immune response. A network analysis, including the 42 genes with candidate variants, showed three main components, consisting of 25 highly interconnected genes related to immune response and two additional networks composed by genes enriched in carbohydrate metabolism and in DNA metabolism and repair processes. In conclusion, we have detected candidate variants that may potentially influence COVID‑19 outcome in our cohort of patients. Further studies are needed to confirm the ultimate role of the genetic variants described in the present study on COVID‑19 severity.

  Study EGAS00001006372

• ESGI - Whole Genome Sequencing of NSPHS samples (2019-08-19)

  Whole genome sequencing of sampels from the NSPHS cohort. The samples are sequenced using the Illumina HiSeq X Ten system. . This dataset contains all the data available for this study on 2019-08-19.

  Dataset EGAD00001005267

• scRNAseq of neuroblastoma patients

  This dataset contains 19 scRNAseq realized on neuroblastoma patients biopsies straight after surgical act.

  Dataset EGAD00001006556

• Whole-genome enzymatic DNA methylation sequencing and single-cell RNA sequencing data from nasal cells of COVID-19 patients

  Nasal swabs were collected from COVID-19 patients during the acute phase of infection as well as 3 and 12-months post-infection. Cells isolated from nasal swabs were subjected to whole-genome enzymatic DNA methylation sequencing (n=33) and scRNA-seq (n=24). For n=12 former COVID-19 pateints, follow-up samples were collected at 3 and 12 months post-infection and subjected to scRNA-seq.

  Dataset EGAD50000000398

• ESGI - Whole Genome Sequencing of samples from the Cilentogen isolates (2019-08-19)

  Deep whole genome sequencing of sampels from the Cilento isolates. The samples are sequenced using the Illumina HiSeq X Ten system. . This dataset contains all the data available for this study on 2019-08-19.

  Dataset EGAD00001005266

• Sequence data of 28 Samples (19 chronic lymphocytic leukemia, 9 control)

  Sequence data of 28 Samples (19 chronic lymphocytic leukemia, 9 control) Including RNA-Seq and ChIP-Seq of following histone modifications: H3, H3K4me1, H3K4me3, H3K9ac, H3K9me3, H3K27ac, H3K27me3, H3K36me3 Project see: http://www.cancerepisys.org/

  Dataset EGAD00001003421

• MBL2 genetic variation in critical Covid-19

  The data set includes MBL2 genotypes and clinical phenotypes of a cohort of patients with critical Covid-19. The files included in the data set include a vcf file with single nucleotide variants, and a file with clinical phenotypes.

  Dataset EGAD00001008771

• Thymic epithelial transplantation for complete DiGeorge syndrome Spatial (2026-01-19)

  Spatial transcriptome analysis of thymic cells from children with syndromic diseases such as Trisomy 21 and inflammatory/autoimmune diseases such as myasthenia gravis. . This dataset contains all the data available for this study on 2026-01-19.

  Dataset EGAD00001015798

• 86 paired-end MiSeq 16S rRNA sequencing samples

  We compared bacterial communities in breast milk from teen (≤19 yr, n = 26) vs. adult (>19 yr, n = 56) mothers, normal weight (BMI 18.5-24.9, n = 63) vs. overweight (BMI ≥ 25, n = 19) mothers, primiparous (parity = 1, n = 41) vs. multiparous (parity > 1, n = 44), early (5-46d postpartum, n = 39) vs. established lactation (4-6 mo postpartum, n = 45), breastfeeding (EBF: PBF, n = 72) vs. mixed feeding (n = 11) and mothers with (Na/K ratio < 0.6, n = 75) and without SCM (Na/K ration ≥ 0.6, n = 10).

  Dataset EGAD00001004160

• Evaluating the immune response in treatment-naive hospitalised patients with influenza and COVID-19

  Clinical characteristics and peripheral blood were acquired upon hospital admission from two well characterised cohorts, a cohort of patients infected with influenza and a cohort of patients infected with SARS-CoV-2 during the first wave of the pandemic and prior to availability of COVID-19 treatments and vaccines.

  Study EGAS00001005971

• WGS data of Japanese including COVID-19 patients and healthy subjects

  This dataset contains WGS data of 234 Japanese, including 88 COVID-19 patients and 146 healthy subjects. Libraries were sequenced on the HiSeqX or NovaSeq 6000 system. Sequenced reads were aligned against the Genome Reference Consortium human genome build 38 using BWA-MEM.

  Dataset EGAD00010002742

• Kidney tumour_DNA (2018-09-19)

  This is a bulk DNA and RNA sequencing study of human renal tumours . This dataset contains all the data available for this study on 2018-09-19.

  Dataset EGAD00001004346

• Single-cell RNA sequencing of bronchoalveolar lavages from COVID-19 patients

  Single-cell RNA sequencing of bronchoalveolar lavages from COVID-19 patients.

  Dataset EGAD00001006893

• COVID-19 scRNA-seq, TCR-seq and BCR-seq

  COVID-19 scRNA-seq, TCR-seq and BCR-seq for 291 samples collected from 109 patients. Among 291 samples, 249 of them have two libraries (sequencing runs) for each assay, while 42 have only one library.

  Dataset EGAD00001007995

• Exome Sequencing of 44 subjects with very severe or fatal COVID-19

  In this study, the DNA of 44 subjects with severe COVID-19 have been sequenced in order to explore rare genetic variants.

  Dataset EGAD00001008993

• COVID-19 Postmortem Lung snRNA-seq

  A deeper understanding of the pathological mechanisms of SARS-CoV-2 infection is required to combat COVID-19. Through this dataset, we analyze postmortem lung cells from patients that are infected/uninfected with SARS-CoV-2 with snRNA-seq.

  Dataset EGAD00001006584

• Variables of diversity, clonality, V and J usage and main COVID-19-reactive GLIPH2 frequencies.

  Main results of the T cell repertorie analysis of a cohort of 61 patients. For each patient, repertorie diversity and clonality metrics, V an J alelle frequency and COVID-19-reactive sequencies have been calculated using open.source code. For more information about the study, please visit DOI: 10.1186/s40246-024-00654-0

  Study EGAS50000000587

• Single-cell multi-omics analysis of COVID-19 patients with pre-existing autoimmune diseases

  Single-cell analysis of the transcriptome, T cell immune receptors, and surface proteome (CITE-seq) from peripheral blood mononuclear cells (PBMCs) of COVID-19 patients with pre-existing autoimmune diseases (rheumatoid arthritis n = 5, psoriasis n = 4, or multiple sclerosis n = 3), as well as COVID-19 patients without pre-existing autoimmunity as controls (n = 10) to investigate altered immune responses.

  Dataset EGAD00001007982

• Age-dependent association of clonal hematopoiesis with COVID-19 mortality in patients over 60 years

  Targeted sequencing with the Myeloid Solutions™ Panel (MYS) of SOPHiA Genetics for COVID-19 patientds (n=241 deceased, n=239 survivors).

  Dataset EGAD50000000001

• scRNA-seq of bronchoalveolar lavage (BAL) samples from patients with severe COVID-19 to assess dexamethasone response in the lungs

  Single-cell RNA-sequencing of bronchoalveolar lavage (BAL) samples from patients with severe COVID-19 with or without Dexamethasone treatment and for responders and non-responders was performed using 10x Genomics technology.

  Dataset EGAD50000000292

• Elucidation of male-specific genetic regulation through multi-layered omics analysis

  We performed single-cell RNA-sequencing of peripheral blood mononuclear cells from asthma patients and single-cell multiome (RNA+ATAC) profiling from COVID-19 patients.

  Study JGAS000862

• WES CRAM files of HUG-CEL Covid-19 Genomics Study

  Whole Exome Sequencing Dataset (CRAM files) of 415 admixed Brazilians with Covid-19 extreme phenotypes from recovered nonagenarians and centenarians to deceased adults.

  Dataset EGAD00001009652

• ESGI - Whole Genome Sequencing of samples from the INGI-Val Borbera genetic isolate (X10) (2019-08-19)

  Whole genome sequencing of sampels from an isolated population from the Val Borbera valley in Italy. The samples are sequenced using the Illumina HiSeq X Ten system. . This dataset contains all the data available for this study on 2019-08-19.

  Dataset EGAD00001005268

• CONTAGIOUS trial - COVID-19 16S dataset

  16S amplicon data of nasopharyngeal swabs in a COVID-19 cohort recruited at UZ Leuven. The dataset contains a single experiment, comprising 150 runs corresponding to 125 unique samples. Runs comprise paired fastq files (2*250 bases) obtained from an Illumina MiSeq instrument.

  Dataset EGAD00001006864

• Shedding light over COVID-19 susceptibility and severity

  “One of the most remarkable features of SARS-CoV-2 infection is the variation in consequence ranging from asymptomatic to life-threatening” state the authors of the majestic Nature paper released in accelerated pre-view on July 2021. This variation in consequences represent not only an issue of burning medical relevance, but also a scientific and intellectual challenge for scientists around the globe. Researchers are known to be easily triggered by a challenge, and they recently demonstrated to be even better at double their efforts to focus on an urgent societal need. In this work led and coordinated by the COVID-19 Host Genetics Initiative (COVID-19 HGI), researchers gathered data from 49,562 cases and two million controls from 46 studies performed worldwide. The majority of the data has been deposited at the EGA, where 29 datasets have been collected under the study number EGAS00001005304. Data gathered from diverse sources conferred a huge robustness to the results. Genetic data from different ancestry origin were included in the analyses, even though data from patients with European origin was highly predominant (approx. 75%). Separated analysis of the different ancestries gave rise to relevant differences in the results, highlighting how important it is to take this aspect in consideration for future studies. Data from the individual studies was compiled into three categories according to COVID-19 severity for a meta-analysis: (a) critically ill cases (b) moderate or severe cases (c) all cases. They were paired with non-COVID-19-reported controls. All three analysis resulted in a total of 13 genetic loci associated with COVID-19 severity. Out of those, 9 loci associated specifically with critical illness, while 6 (a few overlapped) associated with moderated illness. Some genomic position matched previous findings. Interestingly, working with such an enormous amount of data allowed the depth to discriminate association with disease susceptibility vs severity, an issue of large medical relevance. Several loci mapped into biological relevant genes, like TYK2, PPP1R15A and FOXP4, previously implicated in immune response and/or lung functions. Researchers participating in the COVID-19 Host Genetics Initiative have worked in an unprecedented time-tight collaboration, prioritizing data sharing and collective results to tackle the pandemic affecting the world. The scientific community won’t miss any of the lessons to learn from this, and the EGA is ready to keep working to enable safe data sharing and fruitful collaborations.

  Blog covid-19-susceptibility-and-severity