Male autism spectrum disorder is linked to brain aromatase disruption by prenatal BPA in multimodal investigations and 10HDA ameliorates the related mouse phenotype (BPA)
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ABSTRACT:
ORGANISM(S): Mus musculus
PROVIDER: GSE266401 | GEO | 2024/05/08
REPOSITORIES: GEO
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Project description:Primary cortical neurons were obtained from male Cyp19-EGFP mouse embryos at gestational day 15.5. Embryos were genotyped for SRY to determine sex, and only male embryos were used. Cells were seeded in 24-well plates containing 12 mm glass coverslips, coated with 100 µg/mL poly D-lysine to a density of ~0.45 x 106 cells/well and incubated in a humidified CO2 incubator (5% CO2, 37°C). Primary cortical from Cyp19-EGFP mouse embryos were obtained on GD 15.5. Neuronal cell cultures were treated with vehicle or 1mM 10HDA (Matreya, PA ,USA)
2024-05-14 | GSE266400 | GEO
Project description:Although the effects of thyroid hormones (TH) on the brain development have been extensively studied perinatally, effects of TH of maternal origin on the fetal brain development have been largely unexplored. We applied a high throughput study on the mouse models with aberrant TH levels on gestation day (GD) 16, before the onset of fetal thyroid function. Although 3 day treatment with methimazole (MMI) and perchlorate significantly decreased TH levels in fetal cerebral cortex, few changes in the abundance of mRNA were revealed by the microarray analysis. Injection TH to dams 12 hours before sacrifice on GD 16 induced 161 genes significantly changed in fetal cortex. Nine out of 10 selected genes were confirmed with RT-PCR, including known TH responsive gene Klf9 and other novel TH responsive genes such as Appbp2, Ppap2b and Fgfr1op2. TH regulation of the expression of these genes was also confirmed with cultured N2a? cells. Thyroid responsive elements (TREs) in the promoters of these genes were identified using electrophoresis mobility shift assay. TH effect on microRNA (miRNA) expression in developing cortex on GD 16 and postnatal day (PND) 15 was investigated with microarray and RT-PCR. Some of miRNAs and precursors decreased in fetal cortex from the dams injected with TH on GD 16, including miR-16 and miR-106. Using 3’ untranslate region reporter vector, we identified Klf9 is one of the target genes of miR-106, while Ppap2b is the target of miR-16. These results indicated that TH regulation on gene expression could through TR-TRE interaction and through regulating target miRNA expression. This study is the first report to identify TH responsive genes and miRNAs genome wide in the early fetal brain; it provides evidence to further understand the mechanism of TH effect on brain development. Timed-pregnant C57BL/6 mice (n=20; Harlan, Indianapolis, IN) arrived on gestational day (GD) 11 and were housed individually in plastic cages under a 12:12 light cycle (0600 h–1800 h) with food available ad libitum. Mice were divided randomly into one of 4 groups (control, hypo, hypo+ and hyper; 5 per group) . Mice in the control and hyper groups were provided with fresh drinking water containing 2% sucrose from GD 13 to GD 16 until sacrifice. Mice in hypo and hypo+ were provided with fresh drinking water daily containing 1% Perchlorate (Per) and 0.025% Methimazole (MMI) supplemented with 2% sucrose (to mask bitterness) from GD 13 to sacrifice on GD 16. Twelve hours prior to sacrifice on GD 16 all mice received a single subcutaneous injection. Control and hypo mice received vehicle (0.9% saline in 100 µl volume); the hypo+ group received 25.0 µg/100g body weight thyroxine (T4) with 2.5 µg/100g body weight T3 to restore a physiological level of TH; the hyper group received 100.0 µg/100g body weight T4 with 10.0 µg/100g body weight T3 to model hyperthyroidism. Dams were killed by exposure to CO2. Fetuses were dissected from the uterine horn and embryonic membranes then frozen on pulverized dry ice. Tissue samples were taken from the fetuses to determine sex using PCR for SRY (Yang J and RT Zoeller, 2002). Fetal cerebral cortices were removed from each mouse and used for microarray and RT-PCR analysis. Total RNA was extracted from half cortices of individual female fetuses using RNeasy Lipid tissue Mini kits (Qiagen, Germantown, MD) according to the manufacturer's instructions. The quality of total RNA was evaluated by A260/A280 ratio (found to be at least 1.8 for each sample) and by electrophoresis on the Agilent Bioanalyzer. The Yale Center for the Neuroscience Microarray Consortium carried out the Affymetrix microarray analysis using The GeneChip Rat Genome 230 2.0 Array. Preparation of labeled cRNA for hybridization onto Affymetrix GeneChips followed the recommended Affymetrix protocol. Control versus each of the three treatment groups: hyper, hypo, and hypo+. 1 of 20 samples removed due to poor quality.
2014-02-04 | E-GEOD-43927 | biostudies-arrayexpress
Project description:We performed single-cell RNA sequencing on neurosphere cultures derived from the dorsal telencephalic vesicles of sex segregated gestational day (GD) 12.5 C57BL/6J mouse fetuses.
2021-02-10 | GSE155880 | GEO
Project description:This study describes a temporal profile of gene expression from normal human fetal testes and ovaries. Gonads from 34 fetuses between 9 weeks and 20 weeks of gestation were obtained from the Department of Pathology and the Birth Defects Research Laboratory at the University of Washington. Relative transcript levels were determined using the Affymetrix Human Genome U133A Plus 2.0 arrays. Sex determination occurs in the human gonad at approximately 6 weeks; gestation with development of the testis driven by expression of SRY. In this study, SRY transcript was present and elevated at 9 weeks gestation in the testis but absent in the ovary. The transcript levels of other testis-specific factors SOX9, AMH, and the steroidogenic genes CYP17a1, CYP11a1, STAR and HSD17β3 were all significantly higher in the testis. In contrast, transcripts known to be involved in meiosis including STRA8, SPO11, SYCP3, TEX11, TEX14 and STAG3 showed highest expression in the fetal ovary beginning at week 12. These gene expression profiles will be a resource for understanding and defining normal gonad development and provide the opportunity to dissect abnormal development. Experiment Overall Design: Gonads from 34 fetuses between 9 weeks and 20 weeks of gestation were obtained, total RNA was extracted and hybridized to Affymetrix microarrays.
2009-05-11 | E-GEOD-15431 | biostudies-arrayexpress
Project description:The Long Evans/orl (LE/orl) rat is an animal model of inherited undescended testis (UDT). To explore genetic mechanisms of UDT, we studied differential gene expression in LE/orl and LE wild type (LE/wt) fetal gubernaculum and testis. Analyses of differentially expressed probe sets linked below as supplementary files:; Analysis_methods.txt [A description of the analysis]; gub.txt [Genes differentially expressed in between wt and orl gubernacula]; testes.txt [Genes differentially expressed between wt and orl testes]; wt.txt [Genes differentially expressed in wt gubernacular development] Experiment Overall Design: Fetuses were harvested from timed matings of LE/wt and LE/orl rats at gestational day (GD) 17, 18, 19, and 20. Single gubernaculum and testis were removed from male fetuses and total RNA was isolated from each organ. Left organs were used, except for GD 20 fetuses where both right and left gubernacula were included. For female fetuses, the right and left gubernacula from a single fetus were pooled before RNA isolation. A total of 54 samples were hybridized to GeneChips; 34 gubernacular samples and 20 testes samples. There were 13 sample groups, each included biological replicate arrays. The sample groups were (1) female LE/wt GD18 gubernacula n=4, (2) male LE/wt GD18 left gubernacula n=4, (3) male LE/wt GD19 left gubernacula n=4, (4) male LE/wt GD20 left gubernacula n=4, (5) male LE/wt GD20 right gubernacula n=3, (6) male LE/orl GD18 left gubernacula n=4, (7) male LE/orl GD19 left gubernacula n=4, (8) male LE/orl GD20 left gubernacula n=4, (9) male LE/orl GD20 right gubernacula n=3, (10) male LE/wt GD17 left testes n=5, (11) male LE/wt GD19 left testes n=5, (12) male LE/orl GD17 left testes n=5, and (13) male LE/orl GD19 left testes n=5.
2008-06-15 | E-GEOD-7755 | biostudies-arrayexpress
Project description:Peanut allergy reaction severity correlates with increased intestinal epithelial cell (IEC) barrier permeability. CC027/GeniUnc mice develop peanut allergy by intragastric administration of peanut proteins without adjuvant. We report that peanut-allergic CC027/GeniUnc mice showed increased IEC barrier permeability and systemic peanut allergen Ara h 2 after challenge. Jejunal epithelial cell transcriptomics showed effects of peanut allergy on IEC proliferation, survival, and metabolism, and revealed IEC-predominant angiopoietin like-4 (Angptl4) as a unique feature of CC027/GeniUnc peanut allergy. Peanut-allergic pediatric patients demonstrated significantly higher serum ANGPTL4 compared to non-peanut-allergic but atopic patients, highlighting its potential as a biomarker of peanut allergy.
2021-07-09 | GSE179595 | GEO
Project description:Peanut protein is a remarkably potent food allergen in susceptible individuals. The frequency of peanut allergy is approximately 1% in the US population. Peanut allergy often presents with severe symptoms, and it is seldom outgrown. We sought to understand how peanut protein activates human dendritic cells, which are crucial in promoting the activation and differentiation of pathogenic peanut-specific Th2 cells that drive allergic responses.
2020-10-21 | GSE159706 | GEO
Project description:Investigation of resistance genes from 36,158 peanut ESTs after cold stress treatment, compared with untreated peanut. Yield some useful insights into cold-mediated signal transduction pathways in peanut.
2016-11-09 | GSE53122 | GEO
Project description:Investigation of resistance genes from 36,158 peanut ESTs after salt stress treatment, compared with untreated peanut. Yield some useful insights into salt-mediated signal transduction pathways in peanut.
2018-11-30 | GSE75625 | GEO
Project description:Intercropping is a vital technology in resource-limited agricultural systems with low inputs. Peanut/maize intercropping enhances iron (Fe) nutrition in calcareous soil. Proteomic studies of the differences in peanut leaves, maize leaves and maize roots between intercropping and monocropping systems indicated that peanut/maize intercropping not only improves Fe availability in the rhizosphere but also influences the levels of proteins related to carbon and nitrogen metabolism. Moreover, intercropping may enhance stress resistance in the peanut plant (Xiong et al. 2013b). Although the mechanism and molecular ecological significance of peanut/maize intercropping have been investigated, little is known about the genes and/or gene products in peanut and maize roots that mediate the benefits of intercropping. In the present study, we investigated the transcriptomes of maize roots grown in intercropping and monocropping systems by microarray analysis. The results enabled exploration differentially expressed genes in intercropped maize. Peanut (Arachis hypogaea L. cv. Luhua14) and maize (Zea mays L. cv. Nongda108) seeds were grown in calcareous sandy soil in a greenhouse. The soil was enhanced with basal fertilizers [composition (mg·kg−1 soil): N, 100 (Ca (NO3)2·4H2O); P, 150 (KH2PO4); K, 100 (KCl); Mg, 50 (MgSO4·7H2O); Cu, 5 (CuSO4·5H2O); and Zn, 5 (ZnSO4·7H2O)]. The experiment consisted of three cropping treatments: peanut monocropping, maize monocropping and intercropping of peanut and maize. After germination of peanut for 10 days, maize was sown. Maize samples were harvested after 63 days of growth of peanut plants based on the degree of Fe chlorosis in the leaves of monocropped peanut. The leaves of monocropped peanut plants exhibited symptoms of Fe-deficiency chlorosis at 63 days, while the leaves of peanut plants intercropped with maize maintained a green color.
2017-01-24 | GSE93771 | GEO