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3 protocols using mx3005p rt qpcr system

1

Quantitative RT-PCR for Gene Expression

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Total RNA was isolated using TRIzol reagent according to the manufacturer’s instructions (Invitrogen, Thermo Scientific). Then, cDNA was synthesized using random hexamer primers and MuLV reverse-transcriptase enzyme (Thermo Scientific). RT-qPCR was performed using Maxima SYBR Green/Rox reagents (Thermo Scientific) and the Mx3005P RT-qPCR system (Agilent Technologies, Santa Clara, CA, USA). The relative mRNA levels obtained using the comparative Ct method, and were normalized to GAPDH, SDHA, and ACTB expression47 (link). Primer sequences are provided in Supplementary Table 1.
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2

RT-qPCR Analysis of Gene Expression

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Snap-frozen half brains were homogenized using Lysing Matrix D tubes (MP Biomedicals, Cambridge, United Kingdom) and a Ribolyser tissue homogenizer (Bio-Rad Laboratories, Watford, United Kingdom). Total RNA was extracted using RNABee (AmsBio, Abingdon, United Kingdom), purified using an RNeasy Mini kit (Qiagen, Manchester, United Kingdom), and treated with RNase-free DNase I (Promega, Southampton, United Kingdom) to remove genomic DNA. First-strand cDNA synthesis was performed using 1 μg total RNA and the SuperScript III Reverse Transcriptase (Life Technologies, Waltham, MA, United States), and mRNA amplified using Oligo DT (Promega). RT-qPCR was then performed using the primers listed in Table 1 and FastStart Universal SYBR Green Master mix (Rox; Sigma-Aldrich) on an MX3005P RT-qPCR system (Agilent Technologies LDA UK Ltd., Stockport, Cheshire, United Kingdom). Cycle threshold values were analyzed using MxPro software (Agilent Technologies LDA UK Ltd.) and normalized relative to the reference gene Rpl19 using the ΔΔCT method. Expression values were normalized so that the mean level in the 1xPBS-treated controls was 1.0.
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3

Quantifying Gene Expression via qPCR

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A cDNA sample (1 µg; ×10 dilution) was used for qPCR with SYBR® Premix Ex Taq (Takara Biotechnology Co., Ltd., Dalian, China). qPCR amplification was conducted in a 20 µl reaction mixture containing 10 µl SYBR® Premix Ex Taq, 0.5 µl upstream and downstream primers with a concentration 10 µmol/l and 8 µl nuclease-free double-distilled water in the Mx3005P RT-qPCR System (Stratagene; Agilent Technologies Inc., Santa Clara, CA, USA). The thermocycling conditions were as follows: 95°C for 10 min; 40 cycles of 95°C for 15 sec, 60°C for 20 sec, 72°C for 20 sec and 95°C for 1 min, 55°C for 30 sec and 95°C for 30 sec. Following the reaction, 10 µl assay mixture was used for 1.5% agarose gel electrophoresis using Tris, acetic acid and EDTA buffer (1x), following a standard procedure. GAPDH was used as the reference gene and each sample was run at least in triplicate. The results were quantified using the 2−∆∆Cq method (13 (link)). All PCR primers were designed with Primer Premier 6.0 (VoyaGene Biotech Co., Ltd., Hangzhou, China) according to the mRNA sequence from the National Centre for Biotechnology Information (https://www.ncbi.nlm.nih.gov/; ACSL1, NM_001995; GAPDH, NM_001256799) and synthesized by Shanghai Biological Technology Ltd. (Shanghai, China) and the sequences are presented in Table I.
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