Method and device for collecting and stabilizing a...

G - Physics – 01 – N

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G01N 33/96 (2006.01) C12Q 1/68 (2006.01)

Patent

CA 2428864

A collection container and method for collecting a predetermined volume of a biological sample, and particularly a whole blood sample, includes at least one gene induction blocking agent in an amount effective to stabilize and inhibit gene induction. The gene induction blocking agent is able to stabilize nucleic acids in the biological sample at the point of collection to block ex vivo gene induction in the sample when stored at room temperature. The stabilizing agents include cationic compounds, detergents, particularly cationic detergents, chaotropic salts, ribonuclease inhibitors, chelating agents, organic solvents, organic reducing reagents, and mixtures thereof. The biological sample is collected directly from the animal and immediately mixed with the gene induction blocking agent without any intermediate processing or handling.

L'invention concerne un récipient collecteur et une méthode destinée à prélever un volume prédéterminé d'un échantillon biologique, et notamment un échantillon de sang total. Cette méthode fait intervenir au moins un agent de blocage de l'induction génique en quantité efficace pour stabiliser et inhiber l'induction génique. Cet agent de blocage de l'induction génique est capable de stabiliser des acides nucléiques dans l'échantillon biologique au niveau du point de prélèvement de manière à bloquer l'induction génique ex vivo dans l'échantillon lors d'un stockage à température ambiante. Les agents de stabilisation comprennent des composés cationiques, des détergents, et notamment des détergents cationiques, des sels chaotropiques, des inhibiteurs de ribonucléase, des agents chélateurs, des solvants organiques, des réactifs réducteurs organiques et des mélanges desdits composés. L'échantillon biologique est prélevé directement sur un animal et immédiatement mélangé avec l'agent de blocage de l'induction génique sans opération ou traitement intermédiaire.

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