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Macrophages from newly hatched chicks [set2]

ABSTRACT: To identify markers associated with inherent cellular sex-identity, we analysed macrophages from newly-hatched chicks. We found that male and female macrophages respond differently to stimulation by bacterial lipopolysaccharide and that female macrophages constitutively express higher levels of interferon target genes than male macrophages.

ORGANISM(S): Gallus gallus

PROVIDER: GSE59920 | GEO | 2014/07/31

SECONDARY ACCESSION(S): PRJNA257068

REPOSITORIES: GEO

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Macrophages from newly hatched chicks [set2]

Project description:To identify markers associated with inherent cellular sex-identity, we analysed macrophages from newly-hatched chicks. We found that male and female macrophages respond differently to stimulation by bacterial lipopolysaccharide and that female macrophages constitutively express higher levels of interferon target genes than male macrophages. Macrophages were collected from leg-bones of chickens between 1 and 3 days after hatch. Three pools of macrophage cells were made for male and female cultures. Cells were cultured in either standard medium or in medium containing lipopolysaccharide (LPS) to activate the macrophages. Macrophages were harvested and RNA collected for microarray analysis.

2014-07-31 | E-GEOD-59920 | biostudies-arrayexpress

Microarray analysis of up-regulated genes accompanying filial imprinting in domestic chicks (Gallus gallus domesticus)

Project description:Newly-hatched domestic chick serves as an important model for studies of neural and behavioral plasticity, particularly with respect to learning and memory such as filial imprinting. Imprinting is assumed to be a unique case of recognition learning with some characteristic features, such as sensitive period and irreversibility. However, the molecules involved in the memory process are yet to be fully identified. To address this issue, we attempted to identify the genes differentially expressed at an earlier phase of filial imprinting than described in our previous report (Brain Res. Bull.76, 275-281 (2008)). One-day-old chicks were trained for imprinting for 1 h and whole brains were collected and used for cDNA microarray analysis and quantitative RT-PCR. We identified 18 genes upregulated accompanying filial imprinting. These results suggested that the increase of these 18 genes associated with filial imprinting might play an important role in the acquisition of memory in the filial imprinting. Total RNA was extracted from whole brains of trained chicks (n=16) and control dark-reared chicks (n=16). Using these total RNAs, we performed RT-PCR to distinguish male chicks from females. Then total RNAs were separated and mixed in four groups (1, male trained (n=8); 2, female trained (n=8); 3, male dark-reared (n=8); and 4, female dark-reared chicks (n=8)), and we performed cDNA microarray expression analysis to identify the upregulated genes following imprinting (1 versus 3 and 2 versus 4).

2012-08-20 | E-GEOD-31055 | biostudies-arrayexpress

An integrated transcriptomics and metabolomics study of the immune response of newly hatched chicks to the CpG-ODN stimulation

Project description:This study aims at identifying a dual transcriptomics and metabolomics blood signature following administration of CpG-ODN (cytosine-phosphate-guanine oligodeoxynucleotides), a reference immune-stimulatory molecule. A clinical study was conducted with chicks and transcriptomics and metabolomics analyses were performed on whole-blood and plasma samples respectively. Statistical analyses resulting in lists of differentially expressed genes and metabolites with different abundance were identified in chicks treated with CpG-ODN. The results showed that CpG-ODN activates the innate immune systems within hours following administration and its effect lasts over time, as metabolomic and transcriptomic profiles are still varying at 6 days after administration.

2019-10-17 | GSE138956 | GEO

Gallus gallus

Project description:Macrophages from newly hatched chicks [set2]

| PRJNA257068 | ENA

An integrated transcriptomics and metabolomics study of the immune response of newly hatched chicks to the CpG-ODN stimulation

Project description:An integrated transcriptomics and metabolomics study of the immune response of newly hatched chicks to the CpG-ODN stimulation

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Embryonic Exposure to Valproic Acid Impairs Social Predispositions of Newly-Hatched Chicks.

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Ratio abstraction over discrete magnitudes by newly hatched domestic chicks (Gallus gallus).

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Retinal gene expression in chicks during imposed myopic defocus

Project description:The retina plays an important regulatory role in ocular growth. To screen for new retinal candidate genes that could be involved in the inhibition of ocular growth, we used chick microarrays to analyze the changes in retinal mRNA expression after myopic defocus was imposed by positive lens-wear. Chicks were raised under a 12h-light/12h-dark cycle (light-onset: 8:00 am and light-offset: 8:00 pm) with unrestricted access to water and food. On the day prior to the experiment, velcro rings were glued to the feathers around the eye under diethylether anaesthesia. Four male white leghorn chicks, aged 9 days, wore +6.9D spectacle lenses over both eyes for 24 hours. Four untreated age-matched male chicks from the same batch served as controls. After decapitation of the chicks, the eyes were enucleated and the retina was prepared. The retinae from both eyes of each chick were pooled for RNA isolation. Keywords: gene expression comparison

2008-08-22 | GSE11439 | GEO

Lactobacillus plantarum Restores Intestinal Permeability Disrupted by Salmonella Infection in Newly-hatched Chicks.

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Contact with adult hen affects development of caecal microbiota in newly hatched chicks.

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