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Microbiota in Cystic Fibrosis

ABSTRACT: Bolus weekly vitamin D3 supplementation impacts gut and airway microbiota in adults with cystic fibrosis: a double–blind, randomized, placebo-controlled clinical trial

PROVIDER: PRJEB23120 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	ERR2178480.fastq.gz	Fastqsanger.gz
	ERR2178490.fastq.gz	Fastqsanger.gz
	ERR2178500.fastq.gz	Fastqsanger.gz
	ERR2178510.fastq.gz	Fastqsanger.gz
	ERR2178520.fastq.gz	Fastqsanger.gz

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CHANGES IN THE HUMAN TRANSCRIPTOME UPON VITAMIN D SUPPLEMENTATION

Project description:Subjects of a randomized controlled trial (RCT) received either vitamin D3 (n = 47) in a weekly dose of 20,000 IU or placebo (n = 47) for a period of three to five years

2017-01-28 | GSE94138 | GEO

No effect of calcifediol supplementation on skeletal muscle transcriptome in vitamin D deficient frail older adults.

Project description:Vitamin D deficiency is common among older adults and has been linked to muscle weakness. Vitamin D supplementation has been proposed as a strategy to improve muscle function in older adults. The aim of this study was to investigate the effect of calcifediol (25-hydroxycholecalciferol) on whole genome gene expression in skeletal muscle of vitamin D deficient frail older adults. A double-blind placebo controlled trial was conducted in vitamin D deficient frail older adults (aged above 65), characterized by blood 25-hydroxycholecalciferol concentrations between 20 and 50 nmol/L. Subjects were randomized across the placebo group (n=12) and the calcifediol group (n=10, 10 µg per day). Muscle biopsies were obtained before and after six months of calcifediol or placebo supplementation and subjected to whole genome gene expression profiling using Affymetrix HuGene 2.1ST arrays. Expression of the vitamin D receptor gene was virtually undetectable in human skeletal muscle biopsies. Calcifediol supplementation led to a significant increase in blood 25-hydroxycholecalciferol levels compared to the placebo group. No difference between treatment groups was observed on strength outcomes. The whole transcriptome effects of calcifediol and placebo were very weak. Correcting for multiple testing using false discovery rate did not yield any differentially expressed genes using any sensible cut-offs. P-values were uniformly distributed across all genes, suggesting that low p-values are likely to be false positives. Partial least squares-discriminant analysis and principle component analysis was unable to separate treatment groups. Calcifediol supplementation did not affect the skeletal muscle transcriptome in frail older adults. Our findings indicate that vitamin D supplementation has no effects on skeletal muscle gene expression, suggesting that skeletal muscle may not be a direct target of vitamin D in older adults.

2019-06-10 | GSE123993 | GEO

RNA sequencing of sputum cells from a phase IIa placebo controlled clinical trial of Risankizumb in severe asthma

Project description:Interleukin (IL)-23 is implicated in T2 and T17-mediated airway inflammation, supporting a role in asthma. We undertook a Phase II, randomized, double-blind, placebo-controlled, 24-week, parallel-group, multicenter trial to assess the efficacy and safety of risankizumab, an IL23p19 monoclonal antibody, administered subcutaneously (90 mg 4 weekly) in adults with severe asthma. Sputum samples were collected at several timepoints: visit 1B (week -3), visit 2 (week 0 proir to treatment), visit 7 (week 20), visit 8 (week 24, end of treatment), visit 12 (week 40, end of observation). RNA sequencing of sputum cells.

2024-02-10 | GSE167074 | GEO

Oral vitamin D for the attenuation of sunburn

Project description:Background: The diverse immunomodulatory effects of vitamin D are increasingly being recognized. However, the ability of oral vitamin D to modulate immune responses in vivo has not been established in humans. Methods: Twenty healthy adults were randomized to receive placebo or a single high dose of vitamin D3 (cholecalciferol) one hour after localized skin irradiation with an erythemogenic dose of ultraviolet radiation. Primary outcomes included skin redness, skin thickness, and tissue expression of inflammatory mediators (TNF-α and iNOS). Secondary outcomes included microarray analyses. Results: As compared to placebo, subjects receiving vitamin D3 (200,000 IU) demonstrated reduced expression of TNF-α (p=0.04) and iNOS (p=0.02) in skin biopsies 48 hours after ultraviolet light exposure. Demonstrated trends included reduced skin redness (p=0.17), and reduced skin thickness (p=0.09) in subjects receiving vitamin D3 (200,000 IU). Unsupervised clustering of individuals based on global gene expression revealed that subjects with enhanced skin barrier repair expression profiles had higher serum vitamin D3 levels (p=0.007), increased arginase expression (p=0.005), and a sustained reduction in skin redness (p=0.02) after treatment, as compared to subjects with enhanced inflammatory gene expression profiles. Conclusions: A single high dose of oral vitamin D is capable of attenuating a local sunburn response to ultraviolet radiation, suggesting that oral vitamin D may be clinically therapeutic for its immunomodulatory properties. These results have broad implications for the role of vitamin D in skin homeostasis, and implicate arginase activation as a novel mechanism by which vitamin D exerts anti-inflammatory effects in humans.

2018-02-16 | GSE86406 | GEO

Fezakinumab (anti-IL-22) treatment in adults with moderate-to-severe atopic dermatitis

Project description:We conducted a randomized, double-blind, placebo-controlled trial in adults with moderate-to-severe AD unresponsive to conventional topical or systemic treatment. Fezakinumab (ILV-094; anti IL-22 monoclonal antibody) monotherapy was administered for 12 weeks (primary endpoint), and clinical responses were followed until week 20. AD transcriptome significantly improved at week 12 in fezakinumab vs. placebo (p<1E-18).

2018-09-17 | GSE99802 | GEO

Oral JAK/SYK-inhibition (ASN002) suppresses inflammation and improves epidermal barrier markers in atopic dermatitis

Project description:We conducted a randomized, double-blind, placebo-controlled trial in adults with moderate-to-severe AD to test the efficacy of JAK/SYK-inhibitor ASN002. ASN002 significantly suppressed key AD inflammatory pathways, corresponding to clinical response, and may be an effective novel therapeutic agent for moderate-to-severe AD.

2019-07-18 | GSE133385 | GEO

Modulation of the peripheral blood immune cell transcriptome by vitamin D3 supplementation in people with a first demyelinating event: a randomized placebo-controlled trial

Project description:Vitamin D deficiency is a risk factor for developing multiple sclerosis (MS). Both in vitro and animal studies suggest an immunomodulatory effect of vitamin D. The PrevANZ trial, a phase IIb randomized placebo-controlled trial of oral vitamin D3 supplementation in people with a first demyelinating event (FDE), was conducted to determine if supplementation can prevent recurrent disease activity in this cohort at high risk of developing definite MS. As a sub-study of this trial, we used whole blood transcriptomic analyses to investigate the effect of vitamin D3 supplementation on peripheral immune cells in people with an FDE, and to gain insight into potential mechanisms by which vitamin D3 may regulate MS risk and disease activity. The PrevANZ trial randomized participants to 1000 IU, 5000 IU or 10,000 IU daily of oral vitamin D3 or placebo. Peripheral blood was collected at baseline and 12 weeks in PAXgene Blood RNA tubes. Transcriptomic datasets were generated by RNA sequencing.

| EGAS00001007346 | EGA

Transcriptome of vitamin D3 bolus supplementation in a cohort of 25 individuals

Project description:In this study, we analyse the in-vivo modulation of the transcriptome of human PBMCs by a bolus of vitamin D3 (80,000 IU) after 24 hours.

2024-03-11 | GSE260981 | GEO

Dynamics of in vivo vitamin D signalling in Human immune cells

Project description:In this study, we analyse the in-vivo modulation of the transcriptome of human PBMCs over a time course by a bolus of vitamin D3 (80000 IU).

2025-07-17 | GSE283231 | GEO

In vivo response of the transcriptome of human immune cells to vitamin D3 supplementation in a cohort of 45 individuals

Project description:In this study, we analyse the in-vivo modulation of the transcriptome of human PBMCs by a bolus of vitamin D3 (1000 IU/kg) over 24 hours.

2025-05-22 | GSE278885 | GEO

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