Impact of melatonin on gene expression in colonic epithelium of pinealectomized rats
Ontology highlight
ABSTRACT:
ORGANISM(S): Rattus norvegicus
PROVIDER: GSE90837 | GEO | 2016/12/04
SECONDARY ACCESSION(S): PRJNA356122
REPOSITORIES: GEO
Similar Datasets
Project description:Intervention 1: intervention:
6 mg melatonin every night for 30 days. Intervention 2: control:
10 mg zolpidem at night for 30 days.;Treatment - Drugs;Treatment - Drugs;intervention:
6 mg melatonin every night for 30 days;control:
10 mg zolpidem at night for 30 days
Primary outcome(s): Sleep quality. Timepoint: At baseline, 1 month after the baseline and 2 months after baseline. Method of measurement: Pittsburgh Questionnaire.;Sleep quality. Timepoint: At baseline, 2 weeks and 1 month after the baseline and 2 months after baseline. Method of measurement: GSQS Questionnaire.
Study Design: Randomization: Randomized, Blinding: Double blinded, Placebo: Not used, Assignment: Parallel, Purpose: Treatment.
| 2488847 | ecrin-mdr-crc
Project description:Melatonin is a well-known agent that plays multiple roles in animals. Its possible function in plants is less clear. In the present study, we tested the effect of melatonin (N-acetyl-5-methoxytryptamine) on soybean growth and development. Both spraying of leaves and seed-coating with melatonin significantly promoted soybean growth as judged from leaf size and plant height. This enhancement was also observed in soybean production and their fatty acid content. Melatonin increased pod number, seed number and seed weight. However, the 100-seed weight was not influenced by melatonin application. Melatonin also improved soybean tolerance to salt and drought stresses. Transcriptome analysis revealed that melatonin up-regulated the expression of many genes and alleviated the inhibitory effects of salt stress on gene expressions. Further detailed analysis of the affected pathways documents that melatonin likely achieved its promotional roles in soybean through enhancement of genes involved in cell division, photosynthesis, carbohydrate metabolism, fatty acid biosynthesis and ascorbate metabolism. Our results demonstrate that melatonin has significant potential for improving of soybean growth and seed production. Further study should uncover more about the molecular mechanisms of melatoninM-bM-^@M-^Ys function in soybeans and other crops. Four different treatments were chosen, water, salt, 100M-BM-5M melatonin and salt plus 100M-BM-5M melatonin. The comparison of salt/melatonin-treated sample versus water-treated sample reveals salt or melatonin induced transcriptome changes. The comparison of melatonin plus salt treated sample versus salt-treated sample reveals melatonin induced changes when salt exists.
2014-08-31 | E-GEOD-57960 | biostudies-arrayexpress
Project description:Melatonin is a known modulator of follicle development, it acts through several molecular cascades via binding to its two high-affinity, G-protein coupled receptors MT1 and MT2. Even though it is believed that melatonin can modulate granulosa cell (GC) functions, there is still limited knowledge of how it can act in human GC through MT1 and MT2 and which one is the major receptor implicated in the effects of melatonin on the metabolic processes in the dominant follicle. To better characterize the roles of the MT1 and MT2 receptors on the effects of melatonin on follicular atresia and the regulation of proliferation and differentiation of granulosa cells during the antral stage, human granulosa-like tumor cells (KGN) were treated with specific melatonin receptor agonists and antagonists, and gene expression was analyzed with RNA-seq technology. Following appropriate normalization and the application of a fold change cut-off of 1.5 (FC 1.5, p ≤ 0.05) for each treatment, lists of the principal differentially expressed genes (DEGs) are generated. Analysis of major upstream regulators suggested that the MT1 receptor may be involved in the melatonin antiproliferative effect by reprogramming the metabolism of human GC by activating the PKB signaling pathway. Our data suggest that melatonin may act complementary through both MT1 and MT2 receptors to modulate human GC steroidogenesis, proliferation, and differentiation. However, MT2 receptors may be the ones implicated in transducing the effects of melatonin on the prevention of GC luteinization and follicle atresia at the antral follicular stage through stimulating the PKA pathway.
2022-10-26 | GSE201943 | GEO
Project description:We used microarrays to identify genes that respond to SA differently during the subjective morning and subjective night.
2015-06-22 | GSE61059 | GEO
Project description:Purpose:In this study, we observed the effect of exogenous melatonin on the proliferation and pathogenicity of Alternaria alternata, judged the biological function of melatonin on Alternaria alternata, and found the key genes of melatonin regulating Alternaria alternata traits at the transcription level by RNA SEQ, and preliminarily revealed its mechanism of action. Methods:SNA medium with melatonin concentration of 50, 100, 500, 1000 and 1500 μ m was prepared and 30 ml plate was made. Take sterilized circular filter paper with a diameter of 1 cm, add 100 UL 50 CFU / cm3 spore suspension, transfer to SNA medium center, and culture upside down for 7 days Results:In this study, 20 metabolic pathways with the most significant KEGG enrichment were selected from the four control groups by P value analysis (Fig. 9). In 500 μ m vs control group, DEGs were mainly enriched in ribosome, glyoxylic acid and dicarboxylic acid metabolism pathways. In 1500 μ m vs control group, the metabolic pathways such as glyoxylic acid and dicarboxylic acid metabolism, valine, leucine and isoleucine degradation, ketone body synthesis and degradation, terpenoid main chain biosynthesis were the most significant; in 500 μ m vs 1500 μ m, DEGs were mainly enriched in eukaryotic ribosome biosynthesis and RNA polymerase pathway; 500 μ m vs 1500 μ M Compared with the control treatment, DEGs were significantly enriched among the three groups, and the pathways were rich, such as amino acid metabolism, glyoxylic acid and dicarboxylic acid metabolism, valine, leucine and isoleucine degradation, glyceride metabolism, glycolysis / gluconeogenesis, ABC transporter and so on. Conclusions:Nine DEGs related to the development and pathogenesis of streptozospora were obtained by transcriptional sequencing. The results showed that melatonin involved aflatoxin biosynthesis (sld1 and sld2, s-adenosine-l-methionine dependent methyltransferase synthesis), MAPK signal pathway (GLP), linoleic acid metabolism (HP1), heme peroxidase synthesis ）The results showed that the metabolism of selenium (THR), protein processing in endoplasmic reticulum (KHP, 30kda heat shock protein synthesis), glycolysis / glycometagenesis (PPL), and synthesis of non reductive poly ketoacetase (NPS) and heme peroxidase (HP2) were also studied. Among them, THR is related to proliferation regulation [49], sld1, sld2, NPs and ppl are related to pathogenicity , GLP is related to colony growth and pathogenicity, KHP is related to stress , HP1 and HP2 are related to antioxidant activity .
2021-03-28 | GSE170796 | GEO
Project description:The proper response to shear stress involves multiple cell components of the vascular wall including endothelial cells (ECs), smooth muscle cells (SMCs), and the intercellular communications between them. Mounting evidence indicates that retinoid acid receptor-related orphan receptor-α (RORα) mediates many biological activities of melatonin including transactivation of transcriptional factors, and anti-inflammation. In this study we investigated the effect of melatonin on endothelial cells-derived exosomal miRNA expression. We used microarrays to detail the global program of gene expression underlying melatonin treatment and identified distinct classes of dys-regulated genes during this process.
2020-10-20 | GSE159641 | GEO
Project description:Objective: Melatonin and auxin are both tryptophan-derived indole molecules. Much attention has been given to proposed auxin-like activities of melatonin (regulating growth concentration-dependently). However, it still largely remains unclear whether melatonin and auxin regulate signalling pathways in a similar fashion. The purpose of this study is to directly compare the transcriptome response of Arabidopsis with melatonin or auxin. Method: mRNA profiles of 12-day old rosettes treated for a further of 3 days with +/- melatonin (5µM, 1005µM) or NAA(4.5µM) were generated by RNA-sequencing in triplicates (three independent biological experiments), using Illumina NextSeq 550 technology. Results: Comparative global transcriptome analysis conducted on Arabidopsis rosette treated with melatonin or NAA under exact same set of experimental conditions revealed differential number of genes and type of pathways. While auxin (4.5µM) regulated a large number of genes and elicited a diverse response, melatonin (100µM) showed a modest effect on transcriptome with only few genes significantly regulated whereas none regulated at approximately equimolar concentration with NAA (5µM) as compared to untreated solvent control (0.1% EtOH). Interestingly, the most prominent category of genes regulated by melatonin trended towards biotic stress defense pathways. Conclusions: These findings indicate that melatonin and auxin act quite differently toward signaling pathways in Arabidopsis. Melatonin has its own set of mechanisms to exert its functions, with strong inclination toward biotic defense pathways.
2019-12-02 | GSE134079 | GEO
Project description:Chloroquine (CQ) could function as a lysosomotropic inhibitor to impair the autophagy-lysosome pathway, and is widely used to treat malarial, tumor and recently COVID-19. However, the effect of CQ treatment on porcine immature Sertoli cells (iSCs) remains unclear.;Here we showed that CQ treatment reduced iSCs viability in a dose-dependent manner. CQ treatment (20µM) of iSCs for 36h could elevate oxidative stress, damage mitochondrial function and promote apoptosis. Melatonin (MT) (10nM) could partially rescue CQ-induced phenotypic defects. Transcriptome profiling (RNA-seq) identified 1611 differentially expressed genes (DEGs) (776 up- and 835 down-regulated) (20µM CQ vs. DMSO control group), mainly involved in MAPK cascade, cell proliferation/apoptosis, HIF-1, PI3K-Akt and lysosome signaling pathways. In contrast, MT addition identified only 467 (224 up- and 243 down-regulated) DEGs (CQ+MT vs. DMSO), enriched in cell cycle, regulation of apoptotic process, lysosome and reproduction, respectively.Collectively, CQ treatment could impair porcine iSC viability by deranging apoptosis- and autophagy related signaling pathways, which could be partially rescued by MT supplementation.
2024-07-06 | GSE180995 | GEO
Project description:Biological processes are optimized by circadian and circannual biological timing systems. In vertebrates, the pineal gland plays an essential role in these systems by converting time into a hormonal signal, melatonin; in all vertebrates, circulating melatonin is elevated at night, independent of lifestyle. We have analyzed the rat pineal transcriptome at mid-day and mid-night to identify genes that exhibit night/day changes in expression. Keywords: Time course (2 points)
2009-01-15 | GSE12342 | GEO
Project description:Female reproduction depends on the metabolic status especially during the period of folliculogenesis. Even though it is believed that melatonin can improve oocyte competence, there is still limited knowledge of how it can modulate metabolic processes during folliculogenesis, and of which signaling pathways are involved in regulating gene expression. To investigate the effects of melatonin on metabolic signals during the antral stage of follicular development, human granulosa-like tumour cells (KGN) were treated with melatonin or forskolin and gene expression was analyzed with RNA seq technology. Following appropriate normalization and the application of a fold change cut-off of 1.5 (FC 1.5, P ≤ 0.05), 1,009 and 922 genes were identified as differentially expressed in response to melatonin and forskolin, respectively. Analysis of major upstream regulators suggested that melatonin may activate PKB/mTOR signaling pathways to program the metabolism of KGN cells to support slower growth and differentiation and to prevent follicular atresia. Similarly, PKA activation through stimulation of cAMP synthesis with FSK seemed to exert the same effects as melatonin in reducing follicular growth and regulating differentiation. This study suggests that it is possible that melatonin acts through PKA and PKB simultaneously in human granulosa cells to prevent follicular atresia and early luteinisation at the antral stage.
2022-03-09 | GSE189124 | GEO