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Abi prism 7900ht real time system

Manufactured by Thermo Fisher Scientific
Sourced in United States, China, Germany

The ABI Prism 7900HT Real-Time System is a laboratory instrument designed for real-time PCR analysis. It is capable of performing quantitative, qualitative, and allelic discrimination experiments with high sensitivity and reproducibility.

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30 protocols using abi prism 7900ht real time system

1

Quantitative Real-Time PCR Analysis of Inflammatory Markers

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The total RNA from the brain tissue or cells was extracted and reversed transcribed using TRIzol Reagent (Invitrogen) and a Prime Script reagent RT Kit (Takara Biotechnology) according to the manufacturer's protocol. Real‐time qPCR was performed using an ABI Prism 7900HT Real‐Time System (Applied Biosystems Inc). The following primers were used: IL‐1β, AAATCTCGCAGCAGCACAT (forward) and CACACACCAGCAGGTTATCA (reverse); Cxcl‐1, CTGGGATTCACCTCAAGAACATC (forward) and CAGGGTCAAGGCAAGCCTC (reverse); Cxcl‐2, CCAACCACCAGGCTACAGG (forward) and GCGTCACACTCAAGCTCTG (reverse); TIM‐4, ACACATTTTCCCTGCCTCGT (forward) and GCTGTGGCAAGGATTTCACC(reverse); IL‐6, CCACTTCACAAGTCGGAGGCTTA (forward) and CCAGTTTGGTAGCATCCATCATTTC (reverse); TNF, TATGGCCCAGACCCTCACA (forward) and GGAGTAGACAAGGTACAACCCATC (reverse); and Actin, GACATGGAGAAGATCTGGCACCACA (forward) and ATCTCCTGCTCGAAGTCTAGAGCAA (reverse).
Actin was used as a housekeeping gene. The results were presented as the ratio of the gene to the expression of actin mRNA (sense and antisense).
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2

Quantitative Analysis of Inflammatory Gene Expression

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Total RNA was isolated from HPDLCs with help of TRIzol reagent from Invitrogen followed by reverse transcription into cDNA using a High Capacity cDNA Reverse Transcription Kit from Applied Biosystems (Carlsbad, CA, U.S.A.). qPCR analysis was performed on an ABIPrism 7900HT Real-Time System (Applied Biosystems, Carlsbad, CA, U.S.A.) using the SYBR Green qPCR Master Mix from Applied Biosystems. The expression of TRIM52, TLR4, NF-κB p65, IL-6, IL-8, TNF-α and IL-10 were analyzed using the 2−ΔΔCt method with the β-actin as an internal reference. Primer sequences for these genes were listed as follows: TRIM52 forward: 5′-GCCATCTGCTTGGATTACTTC-3′, and reverse: 5′-TTCATCTTCCTCCTCGTTCTG-3′; TLR4 forward: 5′-CACAGACTTGCGGGTTCTACATC-3′, and reverse: 5′-AGTTCATAGGGTTCAGGGACAGG-3′; NF-κB p65 forward: 5′-AGGCAAGGAATAATGCTGTCCTG-3′, and reverse: 5′-ATCATTCTCTAGTGTCTGGTTGG-3′; IL-6 forward: 5′-AGGGCTCTTCGGGAAATGT-3′, and reverse: 5′-GAAGAAGGAATGCCCATTAACAAC-3′; IL-8 forward: 5′-ATGACTTCCAAGCTGGCCGTGGCT-3′, and reverse: 5′-TCTCAGCCCTCTTCAAAAACTTCTC-3′; TNF-α forward: 5′-CTCATCTACTCCCAGGTCCTCTTC-3′, and reverse: 5′-CGATGCGGCTGATGGTGTG-3′; IL-10 forward: 5′-GACTTTAAGGGTTACCTGGGTTG-3′, and reverse: 5′-TCACATGCGCCTTGATGTCTG-3′; β-actin forward: 5′-AGCGAGCATCCCCCAAAGTT-3′, and reverse: 5′-GGGCACGAAGGCTCATCATT-3′.
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3

Quantitative Analysis of Human Bone Cores

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The collection and processing of human bone cores (containing trabecular and cortical bone) from the posterior iliac crest of young (22 to 40 years old, n = 10) and postmenopausal (64 to 88 years old, n = 10) women were described previously.(42 (link)) All samples were collected with informed consent under an IRB-approved protocol. For qPCR analysis, primers were designed using the Primer Express program (Applied Biosystems, Inc., Foster City, CA, USA) and PCR reactions were run in the ABI Prism 7900HT Real time System (Applied Biosystems) using SYBR Green (Qiagen) as the detection method. Normalization for variations in input RNA was performed using a panel of 10 housekeeping genes with the geNorm algorithm(43 (link)) used to select the three most stable housekeeping genes on the plate (POLR2a, RPL13A, and TUBA1B), which were used for every sample. The PCR Miner algorithm(44 (link)) was used to correct for variations in amplification efficiencies.
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4

RT-qPCR Gene Expression Analysis

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Targeted gene expression analyses were performed by RT-qPCR. Briefly, total RNA was isolated using QIAzol Lysis Reagent and RNeasy Mini Columns (Qiagen, Valencia, CA). RNA quantity and purity were confirmed with a Nanodrop spectrophotometer (Thermo Scientific, Wilmington, DE). Reverse transcriptase was performed using the RevertAid First Strand cDNA Synthesis Kit (Thermo Scientific, CA; Cat#K1622). PCR reactions were run using the ABI Prism 7900HT Real Time System (Applied Biosystems, Carlsbad, CA) with SYBR green (Roche Applied Science; Cat# 04913850001). The primer sequences used in this study are listed in Supplementary Table 1.
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5

Quantitative PCR for Gene Expression

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Total RNA was isolated from cells and reverse-transcribed using the RNeasy Mini and QuantiTect Reverse Transcription Kits (QIAGEN, Tokyo, Japan), respectively. Real-time PCR (qPCR) was performed on ABI PRISM 7900HT Real-time system (Applied Biosystems, Darmstadt, Germany) using SYBR Premix Ex Taq (Takara Bio, Shiga, Japan). Target gene expression levels were normalized by glyceraldehyde-3-phosphate dehydrogenase (G3PDH) levels in each sample. Each reaction was performed in triplicate.
The primers for qPCR were designed and used as follows: human LRG, sense 5′- TTTACAGGTGAAACTCGGGG—3′, antisense 5′—ACCCCAAGCTAAGTGGGACT—3′; G3PDH, sense 5’- AGCAATGCCTCCTGCACCACCAAC—3’, 5’—CCGGAGGGGGCCATCCACAGTCT—3’; SPDEF, sense 5’-AGCCTACAGAAGGGCAGTGA—3’, antisense 5’-AACTCAGGGGTGCAGATGTC-3’; β-actin, sense 5’-AGCCTCGCCTTTGCCGA -3’, antisense 5’-CTGGTGCCTGGGGCG-3’
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6

Quantitative Analysis of Gene Expression

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Total RNA (125 ng) was used to generate cDNA using the High-Capacity cDNA Reverse Transcription Kit (Applied Biosystems, Carlsbad, CA) according to the manufacturer’s instructions. qPCR analysis was performed using the ABI Prism 7900HT Real-Time System instrument (Applied Biosystems) with SYBR Green reagent (Qiagen) for mRNA and as previously described (Farr et al., 2015 (link)). Data normalization was performed based on 5 reference genes (Actb, Gapdh, Polr2a, Rpl13a, Tuba1a) depending on their stability and threshold calculations are as previously described (I. Mödder et al., 2011 (link)). The oligonucleotide sequences for the genes measured in this study were designed using the Primer Express program (Applied Biosystems) and are available upon request. For the miRNA expression data, total RNA (30 ng) including the miRNA fraction was reverse transcribed using the miRCURY LNA RT Kit (Qiagen) as per manufacturer’s protocol. All the individual miRNA assays used in this study were purchased from Qiagen and used with the miRCURY LNA miRNA PCR Starter Kit (Qiagen) according to the manufacturer’s instructions. Data normalization was performed using the Let-7f and RNU6B (U6) small nucleolar RNA (snRNA) as specified in Results.
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7

Validating Microarray Findings via qRT-PCR

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Quantitative real-time polymerase chain reaction (qRT-PCR) was performed on randomly selected samples from each comparison group (18 HCM cases and 13 controls) to validate some of the microarray results. The cDNA was generated from each RNA sample using the iScript cDNA Synthesis Kit (Bio-Rad) according to the manufacturer’s protocol. TaqMan Gene Expression Assays (Applied Biosystems) for the genes of interest and the endogenous control GAPDH were used per the manufacturer’s protocol and were run on the ABI Prism 7900HT Real Time System (Applied Biosystems). Each reaction was run in triplicate. Protein expression of ACE2 was confirmed by Western blot analysis with loading normalized for actin.
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8

Evaluating MDR1 Expression in Drug-Treated Cells

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Cells were treated with DMSO, OSI-027 (double the IC50 concentrations), doxorubicin (IC50 concentrations), or OSI-027 plus doxorubicin for 24 hours, and total RNA was extracted using TRIzol Reagent (Invitrogen) and reverse transcribed using the Prime Script reagent RT Kit (Takara Biotechnology). Primers for MDR1 were designed and purchased from Takara. PCR was performed on an ABI Prism 7900HT Real-Time System (Applied Biosystems Inc). MDR1 mRNA expression was normalized to β-actin and determined using the comparative 2−ΔΔCt method (27 (link)). Detailed sequences of primers for MDR1 and β-actin are given in the Supplementary Materials and Methods.
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9

Targeted Gene Expression Analysis of IL-1β and iMSC-sEVs

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Following treatment of IL-1β with or without iMSC-sEVs for 24h as described above, targeted gene expression analyses were performed by RT-qPCR. Briefly, the total RNA of samples was extracted using EZ-press RNA Purification Kit (EZBioscience, USA). RNA quantity and purity were confirmed with a Nanodrop spectrophotometer (Thermo Scientific, Wilmington, DE). A 4× Reverse Transcription Master Mix (EZBioscience, USA) was used for reverse transcription reaction. PCR reactions were run using the ABI Prism 7900HT Real-Time System (Applied Biosystems, Carlsbad, CA) with 2× SYBR Green qPCR Master Mix (EZBioscience, USA). The primer sequences used in this study are listed in Supplementary Table 1.
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10

Quantifying miR-25 Expression in Cells

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Total RNA was isolated using TRIzol (Takara, Japan) Reagent ®. Reverse transcription of miRNA was conducted using a Mir-X miRNA qRT-PCR TB Green® Kit (Takara, Japan,) according to the manufacturer's instructions. Primers for miR-25 were designed and purchased from Takara. qRT-PCR was performed on an ABI Prism 7900HT Real-Time System (Applied Biosystems Inc; Shanghai, China). Results were analyzed using the 2-ΔΔCt method. The level of miR-25 expression was normalized to U6 RNA. The detailed sequences are listed as follows:
FBWX7-homo-F
Forward primer: 5'-CACTCAAAGTGTGGAATGCAGAGAC-3'
Reverse primer: 5'-GCATCTCGAGAACCGCTAACAA-3'
miR-25-3p sequence: 5'-CAUUGCACUUGUCUCGGUCUGA-3'
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