Figure 1From: Rat pro-inflammatory cytokine and cytokine related mRNA quantification by real-time polymerase chain reaction using SYBR greenRepresentative standard curves for TNFa and SOCS3 mRNAs using the LightCycler device. RNA was isolated using spleen cell cultures stimulated with LPS. The primer sets are listed in Tables 1, 2 and amplification conditions are described in "methods". Slopes and statistical value are assessed using LightCycler 3 software. Data are means ± SEM. A) Variation of standard curve for TNFa mRNA quantification according to mRNA extraction: (blue diamond) anion exchange resin RNA extraction (RNeasy mini, QIAGEN), (red diamond) phenol extraction [26]. Each value is the average of four (phenol) or three (RNeasy) independent mRNA quantifications. Only a weak difference is observed in PCR efficiencies between the templates (-3.398 and -3.399). The CT variation is probably due to the difference in mRNA purity between both extraction methods. B) Intra-assay variation for SOCS3 mRNA quantification. Each value is the mean of three repetitions in the same experiment.Back to article page