Rattus norvegicus
Ontology highlight
ABSTRACT:
PROVIDER: PRJNA124409 | ENA |
REPOSITORIES: ENA
Similar Datasets
Project description:Gene expression in response to axotomy in organotypical slices co-cultures
| PRJNA125143 | ENA
Project description:Identification of genes expressed by spinal cord neurons after axotomy and during axon regeneration
| PRJNA92617 | ENA
Project description:Distal axotomy enhances retrograde presynaptic excitability onto injured pyramidal neurons via trans-synaptic signaling
| PRJNA352071 | ENA
Project description:Few studies have assessed the patterns of parasite populations of rodents over a longitudinal gradient in Chile. In this work, the gastrointestinal helminthic fauna of invasive rodents in Chile was examined to assess the association between their presence/absence and abundance with latitude, host sex, and host body condition, and to assess the coexistence and correlation of the abundance between parasite species. Rodents were obtained from 20 localities between 33 and 43°S. Helminths were extracted from the gastrointestinal tract and identified morphologically. Overall, 13 helminth taxa were obtained. The most frequently identified parasite species was Heterakis spumosa, and the most abundant was Syphacia muris, while Physaloptera sp. was the most widely distributed. No locality presented with a coexistence that was different from that expected by chance, while the abundance of five helminthic species correlated with the abundance of another in at least one locality, most likely due to co-infection rather than interaction. Host sex was associated with parasite presence or abundance, and female sex-biased parasitism was notably observed in all cases. Body condition and latitude presented either a positive or negative association with the presence or abundance of parasites depending on the species. It is notable that the likely native Physaloptera sp. is widely distributed among invasive rodents. Further, gravid females were found, suggesting spillback of this species to the native fauna. The low frequency and abundance of highly zoonotic hymenolepid species suggest that rodents are of low concern regarding gastrointestinal zoonotic helminths.
| S-EPMC9277659 | biostudies-literature
Project description:This SuperSeries is composed of the SubSeries listed below.
2015-01-01 | GSE58692 | GEO
Project description:Injury of descending motor tracts remodels cortical circuitry and leads to enhanced neuronal excitability, thus influencing recovery following injury. The neuron-specific contributions remain unclear due to the complex cellular composition and connectivity of the CNS. We developed a microfluidics-based in vitro model system to examine intrinsic synaptic remodeling following axon damage. We found that distal axotomy of cultured rat pyramidal neurons caused dendritic spine loss at synapses onto the injured neurons followed by a persistent retrograde enhancement in presynaptic excitability over days. These in vitro results mirrored hyper-activity of directly injured corticospinal neurons in hindlimb motor cortex layer Vb following spinal cord contusion. In vitro axotomy-induced hyper-excitability coincided with elimination of inhibitory presynaptic terminals, including those formed onto dendritic spines. We identified netrin-1 as downregulated following axotomy and exogenous netrin-1 applied 2 days after injury normalized spine density, presynaptic excitability, and the fraction of inhibitory inputs onto injured neurons. These findings demonstrate a novel model system for studying the response of pyramidal circuitry to axotomy and provide new insights of neuron-specific mechanisms that contribute to synaptic remodeling.
2016-11-02 | GSE89407 | GEO
Project description:The Norway rat has important impacts on our life. They are amongst the most used research subjects, resulting in ground-breaking advances. At the same time, wild rats live in close association with us, leading to various adverse interactions. In face of this relevance, it is surprising how little is known about their natural behaviour. While recent laboratory studies revealed their complex social skills, little is known about their social behaviour in the wild. An integration of these different scientific approaches is crucial to understand their social life, which will enable us to design more valid research paradigms, develop more effective management strategies, and to provide better welfare standards. Hence, I first summarise the literature on their natural social behaviour. Second, I provide an overview of recent developments concerning their social cognition. Third, I illustrate why an integration of these areas would be beneficial to optimise our interactions with them.
| S-EPMC7145424 | biostudies-literature
Project description:BackgroundMurine kobuviruses (MuKV) are newly recognized picornaviruses first detected in murine rodents in the USA in 2011. Little information on MuKV epidemiology in murine rodents is available. Therefore, we conducted a survey of the prevalence and genomic characteristics of rat kobuvirus in Guangdong, China.ResultsFecal samples from 223 rats (Rattus norvegicus) were collected from Guangdong and kobuviruses were detected in 12.6% (28) of samples. Phylogenetic analysis based on partial 3D and complete VP1 sequence regions showed that rat kobuvirus obtained in this study were genetically closely related to those of rat/mouse kobuvirus reported in other geographical areas. Two near full-length rat kobuvirus genomes (MM33, GZ85) were acquired and phylogenetic analysis of these revealed that they shared very high nucleotide/amino acids identity with one another (95.4%/99.4%) and a sewage-derived sequence (86.9%/93.5% and 87.5%/93.7%, respectively). Comparison with original Aichivirus A strains, such human kobuvirus, revealed amino acid identity values of approximately 80%.ConclusionOur findings indicate that rat kobuvirus have distinctive genetic characteristics from other Aichivirus A viruses. Additionally, rat kobuvirus may spread via sewage.
| S-EPMC7161169 | biostudies-literature
Project description:Comparison of rat thoracic duct to vena cava
| PRJNA98293 | ENA
Project description:Inflammation is a key component of pathological angiogenesis. Here we induce cornea neovascularisation using sutures placed into the cornea, and sutures are removed to induce a regression phase. We used whole transcriptome microarray to monitor gene expression profies of several genes
2016-08-18 | GSE81418 | GEO