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Hippocampal RNA-Seq Data and Behavioral Data from Rats Selectively-Bred to Show High or Low Levels of Locomotor Activity in a Novel Environment (bred High Responders vs. bred Low Responders)

ABSTRACT: Hippocampal RNA-Seq Data and Behavioral Data from Rats Selectively-Bred to Show High or Low Levels of Locomotor Activity in a Novel Environment (bred High Responders vs. bred Low Responders)

PROVIDER: PRJNA937261 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR23571300_1.fastq.gz	Fastqsanger.gz
	SRR23571300_2.fastq.gz	Fastqsanger.gz
	SRR23571301_1.fastq.gz	Fastqsanger.gz
	SRR23571301_2.fastq.gz	Fastqsanger.gz
	SRR23571302_1.fastq.gz	Fastqsanger.gz

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Hippocampal RNA-Seq Data and Behavioral Data from Rats Selectively-Bred to Show High or Low Levels of Locomotor Activity in a Novel Environment (bred High Responders vs. bred Low Responders)

Project description:Using selective breeding, we have produced two rat lines with highly contrasting heritable behaviors: bred Low Responders (bLR) are extremely inhibited and anxious in a novel environment, whereas bred High Responders (bHR) are exploratory and sensation-seeking. These traits map onto temperamental extremes predictive of internalizing vs. externalizing psychiatric disorders in humans and can model two divergent paths to drug abuse. To elucidate gene expression underlying these behavioral extremes, bHRxbLR were bred to produce a F0-F1-F2 cross. We then measured exploratory locomotion, anxiety-like behavior, and sensitivity to reward cues (Pavlovian Conditioned Approach) and performed hippocampal RNA sequencing in both F0s (n=24, n=6/phenotype/sex) and F2s (n=250, n=125/sex). The data included in this GEO upload is the data from the F0s from this experiment.

2025-02-07 | GSE225744 | GEO

Hippocampal RNA-Seq Data and Behavioral Data from an F2 intercross of Rats Selectively-Bred to Show High or Low Levels of Locomotor Activity in a Novel Environment (bred High Responders vs. bred Low Responders)

2025-02-07 | GSE225746 | GEO

Project description:Hippocampal RNA-Seq Data and Behavioral Data from an F2 intercross of Rats Selectively-Bred to Show High or Low Levels of Locomotor Activity in a Novel Environment (bred High Responders vs. bred Low Responders)

| PRJNA937260 | ENA

Hippocampal Gene Expression in bred High Responder (bHR) vs. bred Low Responder (bLR) Rats: RNA-Seq Data from Generation F37

Project description:The strong pattern of comorbidity amongst psychiatric disorders is believed to be generated by a spectrum of latent liability, arising from a complex interplay of genetic risk and environmental factors, such as stress and childhood adversity. At one end of this spectrum are internalizing disorders, which are associated with neuroticism, anxiety, and depression. At the other end of the spectrum are externalizing disorders, which are associated with risk-taking and novelty-seeking, as seen in mania, substance abuse, and impulse-control disorders. We model the genetic contributions underlying both extremes of this spectrum by selectively breeding rats that react differently to a novel environment. “Bred high responder” (bHR) rats are highly exploratory with a disinhibited, novelty-seeking temperament, including hyperactivity, aggression, and drug-seeking. “Bred low responder” (bLR) rats are highly-inhibited, exhibiting reduced locomotor activity and anxious and depressive-like behavior. These behavioral propensities are robust and stable, beginning early in development similar to temperament in humans. This RNA-sequencing study examined gene expression in the hippocampus, a region critical for emotional regulation, in generation F37 adult male bHR rats and bLR rats (n=6/group), as well as in rats that showed an intermediate locomotor response to a novel field (“bred Intermediate Responder” or bIR rats, n=6), which were obtained by cross-breeding F37 bHR and bLR rats. Prior to sacrifice, the animals experienced behavioral testing. Locomotor response to a novel environment was assessed between age P50–75 as part of our selective breeding paradigm. We also measured anxiety-like behavior in adulthood (bHR/bLR: P160-P167; bIR: P65-75) using the percent time spent in the open arms of an Elevated Plus Maze (EPM; 5 min test). These behavioral testing results are provided here along with the gene expression data.

2020-06-02 | GSE140598 | GEO

Hippocampal Gene Expression in bred High Responder (bHR) vs. bred Low Responder (bLR) Rats: Illumina Microarray Data from Generation F15

2020-06-02 | GSE140594 | GEO

Hippocampal Gene Expression in bred High Responder (bHR) vs. bred Low Responder (bLR) Rats: RNA-Seq Data from Generation F29

2020-06-02 | GSE140597 | GEO

Hippocampal Gene Expression in bred High Responder (bHR) vs. bred Low Responder (bLR) Rats: Affymetrix Microarray Data from Generation F4

2020-06-02 | GSE140596 | GEO

Hippocampal Gene Expression in bred High Responder (bHR) vs. bred Low Responder (bLR) Rats: Affymetrix Microarray Data from Generation F15

2020-06-02 | GSE140595 | GEO

Low responders to endurance training exhibit greater atrophy

Project description:Divergent skeletal muscle phenotypes result from chronic resistance-type versus endurance-type contraction, reflecting the principle of training specificity. However, it is unclear whether there is a common set of genetic factors that influence skeletal muscle adaptation to disuse. Female rats were obtained from out-bred lines selectively bred from high responders to endurance training (HRT) or low responders to endurance training (LRT; n=6/group; generation 19). Both groups underwent 3 d of hindlimb immobilization to induce atrophy of the plantaris and soleus muscles prior to comparison to non-immobilization controls of the same genotype. RNA sequencing was performed to identify Gene Ontology Biological Processes with differential (LRT vs HRT) gene set enrichment. Running distance, determined well in advance of hindlimb immobilization, increased in response to aerobic training in HRT but not LRT. The atrophy response to hindlimb immobilization was exaggerated in LRT versus HRT. There were between-group differences for 140 processes in plantaris muscle and 118 processes in soleus muscle. In conclusion, low responders to aerobic endurance training exhibited exaggerated atrophy, and this was associated with differential gene expression. Thus, our findings suggest that genetic factors that underpin aerobic training maladaptation may also dysregulate the transcriptional activity of biological processes that contribute to adaptation to hindlimb immobilization.

2021-10-24 | GSE159861 | GEO

Cortex and Hypothalamus Gene Expression in bred High Responder (bHR) vs. bred Low Responder (bLR) Rats: Affymetrix Microarray Data from Generation F4

Project description:The strong pattern of comorbidity amongst psychiatric disorders is believed to be generated by a spectrum of latent liability, arising from a complex interplay of genetic risk and environmental factors, such as stress and childhood adversity. At one end of this spectrum are internalizing disorders, which are associated with neuroticism, anxiety, and depression. At the other end of the spectrum are externalizing disorders, which are associated with risk-taking and novelty-seeking, as seen in mania, substance abuse, and impulse-control disorders. We model the genetic contributions underlying both extremes of this spectrum by selectively breeding rats that react differently to a novel environment. “Bred high responder” (bHR) rats are highly exploratory with a disinhibited, novelty-seeking temperament, including hyperactivity, aggression, and drug-seeking. “Bred low responder” (bLR) rats are highly-inhibited, exhibiting reduced locomotor activity and anxious and depressive-like behavior. These behavioral propensities are robust and stable, beginning early in development similar to temperament in humans. This Affymetrix (Rat Expression Set 230 A) microarray study examined gene expression in the hippocampus, cortex, and hypothalamus in generation F4 adult male bHR rats and bLR rats (n=6 per group). The hippocampal data was previously analyzed and uploaded as GSE140596, whereas the cortex and hypothalamus data are included in this GEO record.

2025-02-05 | GSE286181 | GEO

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