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69 protocols using prism 7500

1

Evaluating the Impact of Viral Markers

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To test whether eGFP-based marker genes had an important effect on the biological characteristics of the virus, N. tabacum plants were infected with and equivalent doses of virions of TEV or TEV-eGFP [14] (link). Virions were quantified by means of a quantitative real-time RT-PCR (RT-qPCR), using PrimeScript RT-PCR kit II (TaKaRa), on the coat protein (CP) (primers: 5′-TTGGTCTTGATGGCAACGTG-3′ and 5′-TGTGCCGTTCAGTGTCTTCCT-3′). A Prism 7500 sequence analyzer (Applied Biosystems) was used, as well as Prism 7500 software, version 2.0.4 (Applied Biosystems), to analyze the data. All aerial plant tissue except the inoculated leaf were collected 7 dpi, RNA was extracted, and a second RT-qPCR using CP primers was performed to determine accumulation. There was not a significant difference in accumulation levels between TEV and TEV-eGFP (t-test on log10-transformed data: t14 = 0.754, P = 0.463). Therefore, biological properties of the marked virus are similar to those of the wild-type virus. On the other hand, the insertion of marker proteins does appear to affect viral within-host competitive fitness [21] (link), [37] (link).
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2

Quantifying cFLIP Isoforms Expression

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RNA was extracted using PRImeZOL (Canvax Biotech Córdoba, Spain) reagent, following the manufacturer’s instructions. mRNA expression was analyzed in triplicate by RT-qPCR on the ABI Prism7500 sequence detection system using predesigned assay-on-demand primers and probes (Applied Biosystems, Thermo Fisher Scientific, Roskilde, Denmark). Primers and probes used were: cFLIPL (AIN1EV0), cFLIPS (Ss03391532_m1) and Hypoxanthine-guanine phosphoribosyltransferase (HPRT1, Hs01003267_m1). HPRT was used as an internal control and mRNA expression levels were given as a fraction of mRNA levels in control cells.
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3

Cardiac Gene Expression Analysis

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Total RNA was isolated from right ventricular tissues using TRI reagent (Sigma, St. Louis, MO, USA) according to the manufacturer's recommended protocol. First-strand cDNA synthesis was performed using the High-Capacity cDNA Reverse Transcription Kit (Applied BiosystemsTM, Foster City, CA, USA) following the manufacturer's instructions. The qPCR mix consisted of SYBR® Green Master Mix (Applied BiosystemsTM, Foster City, CA, USA), synthesized cDNA, and forward and reverse primers specific for VCP, BNP, αMHC, and βMHC. These genes were chosen to characterize heart failure severity and cardiac hypertrophy. The reaction was carried out in an Applied Biosystems Prism 7500 instrument according to the protocol provided by the manufacturer. The relative expression levels of each of the genes of interest were calculated with the ΔΔCt method and were normalized to the expression level of the VCP gene. The primer sequences used for the qPCR analysis are available in Supplementary Table 1.
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4

RT-qPCR Analysis of Gene Expression

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Total RNA was isolated from cultured cells with RNAiso Plus (Takara, Dalian, China), and cDNA was synthesized with the PrimeScript RT Reagent Kit (Takara). Then, 2 μl of cDNA was used for real-time PCR reactions in a Prism 7500 real-time thermocycler (Applied BioSystems, Foster City, CA, USA) with SYBR Green Ex Taq (Takara) according to the manufacturer's instructions. The primer sequences are provided in Supplementary Table 10. Each group was made in triplicate.
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5

Quantitative RT-PCR Analysis of Gene Expression

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Total RNA was prepared using the RNeasy mini kit as described above. RT-PCR was performed using specific primers and One-Step SYBR Green PCR mix (Takara), according to the manufacturer's manual. qRT-PCR was performed using a Prism 7500 sequence detection system (Applied Biosystems). Samples were run in triplicate and all data were normalized to GAPDH mRNA expression as an internal control.
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6

Circadian Rhythm Gene Expression Analysis

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Total RNA was extracted from tissue using the RNeasy Mini Kit (QIAGEN) and treated with DNase (QIAGEN). The RNA was reversed transcribed using the High-Capacity cDNA Reverse Transcription kit (Applied Biosystems) and analyzed by quantitative PCR. Quantitative PCR was performed with Power SYBR Green PCR Mastermix on the PRISM 7500 (Applied Biosystems). Gene expression was normalized to mRNA levels of housekeeping gene 36B4 and the level of the gene of interest in the control samples. Circadian oscillations in gene expression were calculated using JTK_cyclev3.1 scripts (56 (link)) run on R. Amplitude confidence intervals were calculated according to Miyazaki et al., 2011 (57 (link)).
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7

Quantitative Analysis of Inflammatory Mediators

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Total RNA was extracted from the R28 cells using TRIzol reagent (Invitrogen, Waltham, MA, USA), and cDNA was synthesized with a Hifair III 1st Strand cDNA Synthesis Kit (Yeasen Biotechnology, Shanghai, China). Quantitative real-time polymerase chain reaction (RT-PCR) was performed using a Hieff qPCR SYBR Green Master Mix (Low Rox, Yeasen Biotechnology, Shanghai, China) with a sequence detection system (Prism 7500, Applied Biosystems, Waltham, MA, USA) according to the manufacturer’s instructions. The specific primers were designed by Sangon Biotech (Shanghai, China), including TNF-α (forward 5′-ACCATGAGCACGGAAAGCAT-3′ and reverse 5′-AACTGATGAGAGGGAGCCCA-3′), IL-6 (forward 5′-TCTGGTCTTCTGGAGTTCCGT-3′ and reverse 5′-CTTGGTCCTTAGCCACTCCT-3′), IL-1β (forward 5′-TACCTATGTCTTGCCCGTGG-3′ and reverse 5′-TAGCAGGTCGTCATCATCCC-3′), and GAPDH (forward 5′-AGTGCCAGCCTCGTCTCATA-3′ and reverse 5′-TGAACTTGCCGTGGGTAGAG-3′). Relative mRNA levels were normalized to those of GAPDH and were calculated using the 2−ΔΔCT method. Each sample was measured in triplicate wells, and the experiments were repeated three times.
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8

Cerebral Gene Expression Analysis

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After all experimental procedures, isolated cerebral samples were homogenized, isolating RNA using the trizol reagent (Invitrogen) as previously described by us.
40 (link) Total RNA was then converted into cDNA using the High Capacity cDNA Reverse Transcription Kit (Applied Biosystems). The quantification of gene expression was determined by Prism 7500 real‐time PCR (Applied Biosystems). All reactions were performed under the following conditions: 95°C for 15 min, 40 cycles of 95°C for 10 s, and 60°C for 30 s. β‐actin was used as the control gene, and all data are represented as relative mRNA expression on gene expression. The primers for rat NLRP3, C‐terminal caspase recruitment domain (ASC), IL‐1β, IL‐18, GTPase‐activating protein‐binding protein 1 (G3BP1), T cell‐restricted intracellular antigen‐1 (TIA1), DDX3X, synaptophysin (SYN), post‐synaptic density protein‐95 (PSD‐95), and brain‐derived neurotrophic factor (BDNF), vascular endothelial growth factor (VEGF), angiopoietin‐1 (Ang‐1), and angiopoietin‐2 (Ang‐2), and β‐actin are shown in Table 1.
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9

Quantitative mRNA Expression Analysis

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mRNA expression was analyzed in triplicate by RT-qPCR on the ABI Prism7500 sequence detection system using predesigned assay-on-demand primers and probes (Applied Biosystems). Hypoxanthine-guanine phosphoribosyltransferase (HPRT1 Hs01003267_m1) was used as an internal control and mRNA expression levels were given as fraction of mRNA levels in control cells. Primers and probes used were: CHOP (Hs01090850_m1), FLIP(L) (AIN1EV0), FLIP(S) (Ss03391532_m1), TRAIL-R2 (Hs00366278_m1), GOT1 (Hs00157798_m1), GOT2 (Hs00905827_g1) and GPT2 (Hs00370287_m1).
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10

Quantitative Analysis of mRNA Expression

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mRNA expression was analyzed in triplicate by reverse transcriptase-qPCR on the ABI Prism7500 sequence detection system using predesigned assay-on-demand primers and probes (Applied Biosystems). Hypoxanthine-guanine phosphoribosyltransferase (HPRT1 Hs01003267_m1) was used as an internal control and mRNA expression levels of ATF6, TRAIL, and Puma were given as fraction of mRNA levels in control cells. Primers and probes used were: ATF6 (Hs00232586_m1), TRAIL (Hs00921974_m1), and Puma (Hs0024075_m1).
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