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The Guinea Pig Serves as an Alternative Model to Study Human Preimplantation Development

ABSTRACT: The Guinea Pig Serves as an Alternative Model to Study Human Preimplantation Development

PROVIDER: PRJNA1066746 | ENA |

REPOSITORIES: ENA

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The Guinea Pig Serves as an Alternative Model to Study Human Preimplantation Development

Project description:Preimplantation development is a pivotal phase in human embryogenesis, establishing fundamental lineages and being crucial for overall health. Ethical constraints with human embryos necessitate a model organism, and the guinea pig, with its physiological similarities to humans, emerges as a valuable alternative. This rodent mirrors human preimplantation timing, placental features, and fetal development. Importantly, it serves as a model for studying long-term consequences of prenatal insults. Comparative studies across species, including guinea pigs, are essential for unraveling pluripotency mechanisms, offering insights into conserved and divergent aspects and understanding evolutionary adaptations. Addressing the lack of guinea pig embryonic transcriptomic data, this research employs single-cell RNA sequencing, immunofluorescence, and epigenetic analyses to explore gene expression, metabolic requirements, and X-chromosome inactivation dynamics. The study advances our understanding of early embryogenesis, emphasizing the guinea pig's relevance as a model for developmental and pluripotency research.

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Gene expression pattern after insertion of dexamethasone-eluting electrode into the guinea pig cochlea.

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Gene expression pattern after insertion of dexamethasone-eluting electrode into the guinea pig cochlea.

Project description:To investigate the effect of the dexamethasone-eluting electrode in the guinea pig cochlea, and compared the gene expression after 7 days insertion with that of a normal electrode or non-treated control by microarray. Male Hartley guinea pigs (SLC, Shizuoka, Japan) with an age of seven weeks were used for the study. Three were implanted with normal electrodes while three others received a dexamethasone-eluting electrode. The cochleae from two animals, which did not undergo surgery. Seven days after electrode implantation the whole temporal bone was removed and placed into RNAlater solution (Ambion, Life Technologies Co., Grand Island, NY) to stabilize and protect cellular RNA. The whole cochlea was dissected out under a microscope and total RNA were extracted.

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Project description:mRNA coding for major guinea pig isoallergens of Cav p 1

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