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Macaca nemestrina

ABSTRACT: Fetal Brain lesions after subcutaneous inoculation of Zika virus in a pregnant nonhuman primate

PROVIDER: PRJNA330665 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR3932676_1.fastq.gz	Fastqsanger.gz
	SRR3932676_2.fastq.gz	Fastqsanger.gz
	SRR3932677_1.fastq.gz	Fastqsanger.gz
	SRR3932677_2.fastq.gz	Fastqsanger.gz
	SRR3932678_1.fastq.gz	Fastqsanger.gz

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Choriodecidual Infection Downregulates Angiogenesis and Morphogenesis Pathways in Fetal Lungs from Macaca Nemestrina

Project description:Intrauterine exposure to amniotic fluid (AF) cytokines is thought to predispose to bronchopulmonary dysplasia (BPD). We evaluated the effects of GBS exposure on RNA expression in fetal lung tissue to determine early molecular pathways associated with fetal lung injury that may progress to BPD. Ten chronically catheterized pregnant monkeys (Macaca nemestrina) at 118-125 days gestation (term=172 days) received choriodecidual inoculation of either: 1) Group B Streptococcus (n=5) or 2) saline (n=5). Cesarean section and fetal necropsy was performed in the first week after GBS or saline inoculation regardless of labor. RNA was extracted from fetal lungs and profiled by microarray. Results were analyzed using single gene, Gene Set, and Ingenuity Pathway Analysis. Validation was by RT-PCR and immunohistochemistry.

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Large-scale downregulation of cytokeratins in amniotic epithelium after Group B Streptococcus choriodecidual infection in Macaca nemestrina: a pathway to PPROM

Project description:Early events leading to intrauterine infection remain poorly defined, but may hold the key to a therapeutic intervention for preterm delivery. To determine early molecular pathways associated with membrane weakening that may progress to preterm premature rupture of membranes (PPROM), we examined the effects of Group B Streptococcus (GBS) on fetal membranes after a choriodecidual infection. Ten chronically catheterized pregnant monkeys (Macaca nemestrina) at 118-125 days gestation (term=172 days) received choriodecidual inoculation of either: 1) Group B Streptococcus (n=5) or 2) saline (n=5). Cesarean section and fetal necropsy was performed in the first week after GBS or saline inoculation regardless of labor. Macaca nemestrina chorioamnion samples were obtained at the site of inocculation immediately after cesarean delivery 4 days after GBS inoculation and 7 days after saline inoculation. RNA was extracted and profiled by microarray. Results were analyzed using single gene, Gene Set, and Ingenuity Pathway Analysis. Validation was by RT-PCR and immunohistochemistry.

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Project description:A bacterial hemolytic lipid toxin subverts neutrophils and neutrophil extracellular traps to promote gbs invasion, fetal injury and preterm labor in nonhuman primates

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Project description:Uterine stretch is thought to induce preterm labor in women with twin and higher order pregnancies, but the pathophysiology remains unclear. We investigated the pathogenesis of stretch-induced preterm birth for the first time in a pregnant nonhuman primate model. Eleven chronically catheterized pregnant monkeys (Macaca nemestrina) at 118-125 days gestation (term=172 days) received either: 1) inflation of intra-amniotic balloons (N=6) or 2) saline inoculation (N=5). Cesarean section and fetal necropsy was performed due to preterm labor or to collect tissues, except in one case where the animal delivered spontaneously, reducing samples for microarray analysis to ten (five stretch and five control animals). Amniotic fluid and maternal plasma were analyzed for multiple cytokines and prostaglandins using Luminex, enzyme-linked immunosorbent assay and Analysis of Covariance. Ribonucleic acid was extracted from the myometrium in the lower uterus at Cesarean section and analyzed by microarray and quantitative reverse transcriptase polymerase chain reaction.

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