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Astrocytes modulate a specific paraventricular thalamus-prefrontal cortex projection to enhance consciousness recovery from sevoflurane anesthesia in mice

ABSTRACT: Astrocytes modulate a specific paraventricular thalamus-prefrontal cortex projection to enhance consciousness recovery from sevoflurane anesthesia in mice

PROVIDER: PRJNA1003482 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR25573150_1.fastq.gz	Fastqsanger.gz
	SRR25573150_2.fastq.gz	Fastqsanger.gz
	SRR25573151_1.fastq.gz	Fastqsanger.gz
	SRR25573151_2.fastq.gz	Fastqsanger.gz
	SRR25573152_1.fastq.gz	Fastqsanger.gz

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Astrocytes modulate a specific paraventricular thalamus-prefrontal cortex projection to enhance consciousness recovery from sevoflurane anesthesia in mice

Project description:Previous studies have proved that astrocytes may be a key neural substrate that regulates wakefulness and consciousness recovery from general anesthesia, while the exact molecular target in astrocytes is still unclear. Using virus injection and in vivo fiber photometry in mice, we found both activating astrocytes and knocking down astrocytic Kir4.1 in paraventricular thalamus (PVT) promotes the consciousness recovery from sevoflurane anesthesia. Single-cell RNA sequencing of PVT reveals two distinct cellular subtypes of glutamatergic neurons: PVTGRM and PVTChAT neurons. Patch-clamp recording results proved that Astrocytic Kir4.1-mediated modulation of sevoflurane on PVT mainly works on PVTChAT neurons. Moreover, we found that PVTChAT neurons project mainly to the mPFC. This specific paraventricular thalamus to prefrontal cortex projection is involved in recovery of consciousness from sevoflurane anesthesia indirectly through modulation of astrocytes. In summary, our findings support the novel conception that the volatile anesthetic sevoflurane can inhibit PVT astrocytic Kir 4.1 to maintain and/or increase neuronal firing of PVTChAT neurons, which mainly projects to mPFC and promotes consciousness recovery from anesthesia.

2024-07-20 | GSE240388 | GEO

Expression data from sevoflurane anesthesia treated rat

Project description:Long noncoding RNAs (lncRNAs) play important roles in brain function modulation and neurodegenerative diseases. However, whether lncRNA regulations are involved in the mechanisms of perioperative neurocognitive disorders (PNCD), especially in anesthesia related brain dysfunction, remains unknown. We explored the expression and regulation pattern profiles of lncRNAs in the hippocampus of aged rats after sevoflurane anesthesia with microarrays.

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Comparison of global gene expression profile associated with inhalation anesthesia between sevoflurane and desflurane

Project description:Comparative gene expression profiling analysis of RNA-seq data for livers from rats subjected to inhalational anesthesia with either sevoflurane or desflurane and their controls that were treated with sevoflurane or desflurane only briefly until the loss of their consciousness.

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Expression data from sevoflurane anesthesia treated rat

Project description:Expression data from sevoflurane anesthesia treated rat

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Project description:Although sevoflurane is one of the most commonly used inhalational anesthetic agent, the popularity of desflurane is increasing to a similar level. The main beneficial property of desflurane is the relatively fast emergence of the patient from the anesthetic state after halting its supply compared with anesthesia using other anesthetic agents. However, there has been no comprehensive comparison of the effects of these two anesthetic agents on alterations in liver gene expression profiles in animals, including humans, to assess the kinds of biological abnormalities/changes and their levels in the host. Thus, we compared alterations in the global gene expression profiles in the livers of rats subjected to inhalational anesthesia by sevoflurane or desflurane by a next-generation sequencing method.

2024-02-21 | GSE244436 | GEO

sevoflurane exposures on neonatal and adult mice,LC-MSMS

Project description:Sevoflurane is the most commonly used general anesthetic in pediatric surgery, but it has the potential to be neurotoxic. Previous research found that long-term or multiple sevoflurane exposures could cause cognitive deficits in newborn mice but not adult mice, whereas short-term or single inhalations had little effect on cognitive function at both ages. The mechanisms behind these effects, however, are unclear. In the current study, 6- and 60-day-old C57bl mice in the sevoflurane groups were given 3% sevoflurane plus 60% oxygen for three consecutive days, each lasting 2 hours, while those in the control group only got 60% oxygen. The cortex tissues were harvested on the 8th or 62nd day. The tandem mass tags (TMT)pro-based quantitative proteomics combined with liquid chromatography-tandem mass spectrometry (LC-MS/MS) analysi were applied to analyze the influences of multiple sevoflurane anesthesia on the cerebral cortex in mice with various ages. A total of 6247 proteins were measured using the combined quantitative proteomics methods of TMTpro-labeled and LC-MS/MS, 443 of which were associated to the age-dependent neurotoxic mechanism of repeated sevoflurane anesthesia. Our findings would help to further the mechanistic study of age-dependent anesthetic neurotoxicity and contribute to seek for effective protection in the developing brain under general anesthesia.

2022-12-08 | PXD037294 | Pride

Sevoflurane increases FKBP5 expression in microglia in the brains of aged marmosets and mice

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Project description:The paraventricular nucleus of the thalamus (PVT) is known to regulate various cognitive and behavioral processes. However, while functional diversity among PVT circuits has often been linked to cellular differences, the molecular identity and spatial distribution of PVT cell types remains unclear. To address this gap, here we used single nucleus RNA sequencing (snRNA-seq) and identified five molecularly distinct PVT neuronal subtypes. Additionally, multiplex fluorescent in situ hybridization of top marker genes revealed that PVT subtypes are organized by a combination of previously unidentified molecular gradients. Lastly, comparing our dataset with a recently published single-cell sequencing atlas of thalamus yielded novel insight into the PVT’s connectivity with cortex, including unexpected innervation of auditory and visual areas. This comparison also revealed that our data contains a largely non-overlapping transcriptomic map of multiple midline thalamic nuclei. Collectively, our findings uncover previously unknown features of the molecular diversity and anatomical organization of the PVT and provide a valuable resource for future investigations.

2023-03-06 | GSE208707 | GEO

Molecular and spatial profiling of the paraventricular nucleus of the thalamus

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