GSM8894641: Female Ovary, 500 mg/kg/day 73FTOH, Animal r93; Rattus norvegicus; RNA-Seq
Treated and control animals are necropsied approximately 24 hours after the last exposure. Carbon dioxide asphyxiation is used as the method of euthanasia, with death confirmed by a secondary method such as exsanguination or cervical dislocation. The following tissues were dissected from each animal: kidney, liver, adrenal gland, brain, heart, lung, ovary (females), spleen, testis (males), thyroid, thymus, and uterus (females). Tissue samples were collected within ten minutes of termination. The left liver lobe, right kidney, left lung, both testis, uterus, heart, spleen, thymus and whole brain were sectioned into 5mm^3 pieces. Samples from these larger tissues were then individually divided into at least 3 cryovials. At least two of the samples from each tissue in each animal were preserved in RNAlater™ (Thermo Fisher Scientific) at 4°C overnight and then frozen at approximately -20°C for up to 3 weeks before transferring to approximately -80°C. At least one sample from each larger tissue is frozen immediately in liquid nitrogen and stored at approximately -80°C.   The smaller bilateral tissues: adrenal glands, thyroid gland, and ovaries (female) are placed into two cryovials and preserved in RNALater with the left side of the tissue or gland going into the first cryovial and the right side going into the second cryovial. The first tube of RNALater preserved tissue is submitted for sequencing. For each tissue undergoing transcriptomic analysis, total RNA is extracted from one of the aliquots stored in RNAlater™. The isolated total RNA is used to perform targeted RNA sequencing (RNA-seq) using the BioSpyder TempO-Seq rat S1500+ assay (v1.2) according to manufacturer's instructions. No specific RNA purity or integrity criteria are applied to the RNA samples as the TempO-Seq assay has been designed to provide high quality gene expression measurements on whole cell lysates, purified RNA, and formalin-fixed paraffin embedded tissue.