Method of diagnosing neoplasms
a neoplasm and neoplasm technology, applied in the field of nucleic acid molecules, can solve the problems of blood loss, unpredictability of current or future risk of cancer, and observation error and confusion of all those other than number and siz
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Extraction of RNA
[0358]RNA extractions were performed using Trizol® reagent (Invitrogen, Carlsbad, Calif., USA) as per manufacturer's instructions. Each sample was homogenised in 300 μL of Trizol reagent using a modified dremel drill and sterilised disposable pestles. Additional 200 μL of Trizol reagent was added to the homogenate and samples were incubated at RT for 10 minutes. 100 μL of chloroform was then added, samples were shaken vortexed for 15 seconds, and incubated at RT for 3 further minutes. The aqueous phase containing target RNA was obtained by centrifugation at 12,000 rpm for 15 min, 40° C. RNA was then precipitated by incubating samples at RT for 10 min with 250 μL of isopropanol. Purified RNA precipitate was collected by centrifugation at 12,000 rpm for 10 minutes, 40° C. and supernatants were discarded. Pellets were then washed with 1 mL 75% ethanol, followed by vortexing and centrifugation at 7,500 g for 8 min, 40° C. Finally, pellets were air-d...
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