When blood samples are not available, other tissues may be used, with buccal samples being the most common due to the non-invasive sampling and the commercial availability of kits for high-quality DNA extraction.
Purified PCR amplicons were barcoded with Illumina TruSeq kit for high-throughput sequencing.
Malondialdehyde (MDA) was measured in EDTA with a reagent kit for high-performance liquid chromatography analyses (Chromsystems Instruments and Chemicals, Munich, Germany; interassay coefficient of variation, 4 11%), and total antioxidative status (TAS) was measured in serum with an enzymatic kit (Randox Diagnostics, County Antrim, U.K.; interassay coefficient of variation 2.5%).
DNA was extracted from 50 to 100 mg of adult insects, which corresponds to 10 20 individuals, following the instruction of DNeasy Blood & Tissue Kit (Qiagen) for high molecular weight DNA purification.
Previous to the measurements, the mass spectrometer was checked using the OQ kit (BioRad) for high voltage conditioning, detector calibration, detector sensitivity, mass drift, mass resolution, and mass accuracy.
Finally, the use of mini kits for extraction and high-quality DNA polymerase and filter tips for amplification increases the cost of this protocol significantly over CTAB extraction, which has clearly been used successfully to obtain high-quality, high-yield DNA in a number of studies (e.g., Korotkova et al., 2011; Majure et al., 2012).
Cartons containing the company's saliva collection kits for customers are stacked high in the middle of the office, and the company's laboratory consists of two tiny rooms.
The kits for leptin, adiponectin, and high sensitivity IL-6 were all purchased from R&D Systems, Inc. (DLP00, DRP300, HS600B, Minneapolis, MN, USA).
The main advantage of coupled colorimetric assay kits is that they are suitable for high throughput screening.
(26) Thus, variation of immunobead and antibody lots obtained from different manufacturers that have not been as rigorously subjected to quality control and cross-calibration as commercially assembled kits may be an additional explanation for high interlaboratory variation in in-house assembled Luminex assays.
