Morphine addiction-NAc_small RNA sequencing
Ontology highlight
ABSTRACT:
PROVIDER: PRJNA822089 | ENA |
REPOSITORIES: ENA
Dataset's files
| Action | DRS | |||
|---|---|---|---|---|
| SRR18579104.fastq.gz | Fastqsanger.gz | |||
| SRR18579105.fastq.gz | Fastqsanger.gz | |||
| SRR18579106.fastq.gz | Fastqsanger.gz | |||
| SRR18579107.fastq.gz | Fastqsanger.gz | |||
| SRR18579108.fastq.gz | Fastqsanger.gz |
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Project description:The current study aimed at addressing two questions: 1) How the expression of key miRNAs is altered in the NAc during the morphine-induced addiction? 2) Which is/are the target gene(s) and what is/are the regulatory mechanism(s) of gene(s) in response to the candidate miRNAs? To answer these two questions, the morphine addiction model was first established by using the conditioned place preference (CPP) paradigm. Then, the aberrant expression of miRNAs was identified in the NAc tissue by RNA-sequencing.
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Project description:The current study aimed at addressing two questions: 1) How the expression of key lncRNAs is altered in the NAc during the morphine-induced addiction? 2) Which is/are the target gene(s) and what is/are the regulatory mechanism(s) of gene(s) in response to the candidate lncRNAs? To answer these two questions, the morphine addiction model was first established by using the conditioned place preference (CPP) paradigm. Then, the aberrant expression of lncRNAs was identified in the NAc tissue by RNA-sequencing.
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Project description:Morphine addiction-NAc_RNA sequencing
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Project description:The current study aimed at addressing a question: How the expression of key lncRNAs is altered in the NAc during the formation of morphine addiction memory? To answer these two questions, the mice were trained by using the conditioned place preference (CPP) paradigm. Then, the aberrant expression of lncRNAs was identified in the NAc tissue of the mice by RNA-sequencing.
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Project description:The current study aimed at addressing two questions: 1) How the expression of key miRNAs is altered in the NAc during the cue-induced incubation of morphine craving? 2) Which is/are the target gene(s) and what is/are the regulatory mechanism(s) of gene(s) in response to the candidate miRNAs? To answer these two questions, the cue-induced incubation of the morphine craving model was first established by using the conditioned place preference (CPP) paradigm. Then, the aberrant expression of miRNAs was identified in the NAc tissue by RNA-sequencing.
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Project description:Morphine incubation craving-NAc_small RNA sequencing
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Project description:Morphine addiction causes major medical and social problems worldwide. Chronic morphine exposure results in the development of behavioral sensitization, accompanied by the disruption of brain homeostasis. As a key brain reward region, nucleus accumbens (NAc) plays a central role in brain reward mechanisms. However, the contribution of morphine exposure to NAc is poorly understood. Here we indicated that chronic morphine exposure induced neuroinflammation, abnormal neuronal physiology, and dysregulation of glycolytic metabolism in NAc. In summary, our findings illustrate the effects of morphine in NAc, and provide a new insight for development of future morphine addiction therapeutics.
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Project description:Opioid analgesics are frequently prescribed in the United States and worldwide. However, serious side effects such as addiction, immunosuppression and gastrointestinal symptoms limit long term use. In the current study using a chronic morphine-murine model a longitudinal approach was undertaken to investigate the role of morphine modulation of gut microbiome as a mechanism contributing to the negative consequences associated with opioids use. The results revealed a significant shift in the gut microbiome and metabolome within 24 hours following morphine treatment when compared to placebo. Morphine induced gut microbial dysbiosis exhibited distinct characteristic signatures profiles including significant increase in communities associated with pathogenic function, decrease in communities associated with stress tolerance. Collectively, these results reveal opioids-induced distinct alteration of gut microbiome, may contribute to opioids-induced pathogenesis. Therapeutics directed at these targets may prolong the efficacy long term opioid use with fewer side effects.
2018-04-16 | E-MTAB-5550 | biostudies-arrayexpress
Project description:A great number of studies have investigated changes induced by morphine exposure in gene expression using several experimental models. In this study, we examined gene expression changes during chronic exposure to morphine during maturation and differentiation of zebrafish CNS. Our study identified different functional classes of genes and individual candidates involved in the mechanisms underlying susceptibility to morphine actions related to CNS development. These results open new lines to study the treatment of pain and the molecular mechanisms involved in addiction. We also found a set of zebrafish-specific morphine-induced genes, which may be putative targets in human models for addiction and pain processes. Zebrafish embryos were divided into two experimental groups: control embryos and embryos at 5 hpf exposed to 10 nM morphine and collected at 24 hpf (covering the complete embryogenesis). Morphine was administered to the embryos in their water environment, i.e., diluted in E3 embryonic medium. The exposition to begun at the stage of 5 hpf (end of blastula) is continuous, in order to study the chronic effects of the exposure to drug. Microarray experiments were performed using six replicates for each condition, which contained the RNA of approximately one hundred embryos to minimize the influence of potential individual differences between the animals and technical variation introduced by tissue preparation. We previously reported that a concentration of 10 nM morphine is the highest concentration that can be used without a toxic effect on the embryos, and close to 5% of the morphine diluted in the E3 medium is detected in the embryo.
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