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SRX2011252: GSM2266540: BFR2_X14-2; Rattus norvegicus; RNA-Seq
4 ILLUMINA (NextSeq 500) runs: 72M spots, 5.4G bases, 2.4Gb downloads

Submitted by: NCBI (GEO)
Study: Perinatal Exposure to 2,2',4'4' –Tetrabromodiphenyl Ether Impairs Male Reproductive Health in Adult Rats
show Abstracthide Abstract
Toxicity of PBDE for male reproductive system was shown in several human and animal studies, however long lasting effects of perinatal exposures on male reproduction are yet poorly understood. In this study pregnant Wistar rats were exposed to 0.2 mg/kg 2,2',4,4'-tetrabromodiphenyl ether (BDE-47) from gestation day 8 till postnatal day 21 and testis transcriptome was analyzed on postnatal day 120 in offspring. Exposed animals had significant change in testes transcriptome including suppression of genes essential for spermatogenesis and activation of immune response genes. In particular exposed animals had on average 4 fold decreased expression of protamine and transition protein genes in testes suggesting that histone-protamine exchange may be dysregulated in the course of spermatogenesis resulting in exposure legacy transfer to the next generation via aberrant sperm epigenome. Overall design: Rats were exposed perinataly to vehicle or BDE-47. Total RNA was extracted from testis of 5 control and 5 exposed animals on postnatal day 120 and sequenced with multiplexing on NextSeq500.
Sample: BFR2_X14-2
SAMN05557876 • SRS1608534 • All experiments • All runs
Library:
Instrument: NextSeq 500
Strategy: RNA-Seq
Source: TRANSCRIPTOMIC
Selection: cDNA
Layout: SINGLE
Construction protocol: Total RNA was isolated from liver tissue using TRIzol reagent (Invitrogen). Samples of RNA isolated from testis samples with integrity values > 9 were used for library preparation. RS-122-2101-TruSeq® Stranded mRNA LT – SetA kit (Illumina, San-Diego, CA) was used to isolate intact poly(A)+ RNA from 4 µg of total RNA and construct strand-specific libraries with multiplexing indexes. The quality and purity of the libraries was assessed by The Agilent 2200 TapeStation system, and the concentration of the libraries was measured by real time PCR with primers for P5 and P7 flow cell oligo sequences using KAPA Library Quantification Kit (KR0405, Kapa Biosystems, Boston, MA) in a 384-well plate on a CFX384 Touch Real-Time PCR Detection System (Bio-Rad, Hercules, CA).
Experiment attributes:
GEO Accession: GSM2266540
Links:
Runs: 4 runs, 72M spots, 5.4G bases, 2.4Gb
Run# of Spots# of BasesSizePublished
SRR401744517,245,3791.3G578.7Mb2019-08-10
SRR401744617,559,7631.3G586.6Mb2019-08-10
SRR401744718,489,8391.4G621.4Mb2019-08-10
SRR401744818,665,4711.4G626Mb2019-08-10

ID:
2895200

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