titoli, abstracts, parole chiave >>>
Intracellular adenosine 5'-triphosphate, adenosine 5'-diphosphate, and adenosine 5'-monophosphate detection by short-end injection capillary electrophoresis using methylcellulose as the effective electroosmostic flow suppressor

Zinellu, Angelo and Sotgia, Salvatore and Pasciu, Valeria and Madeddu, Manuela and Leoni, Giovanni Giuseppe and Naitana, Salvatore and Deiana, Luca and Carru, Ciriaco (2008) Intracellular adenosine 5'-triphosphate, adenosine 5'-diphosphate, and adenosine 5'-monophosphate detection by short-end injection capillary electrophoresis using methylcellulose as the effective electroosmostic flow suppressor. Electrophoresis, Vol. 29 (14), p. 3069-3073. eISSN 1522-2683. Article.

Full text not available from this repository.

DOI: 10.1002/elps.200800033

Abstract

We present a new rapid CE method to measure adenine nucleotides adenosine 5'-triphosphate (ATP), adenosine 5'-diphosphate (ADP), and adenosine 5'-monophosphate (AMP) in cells. The short-end injection mode allows a decrease in the analysis time by injecting samples at the outlet end of a silica capillary closest to the detection window, reducing the migration distance. Moreover, the use of methylcellulose (MC) as run buffer additive to suppress EOF permits to further reduce the migration times of analytes. Thus, when a capillary with an effective length of 10.2 cm was used with a 60 mmol/L sodium acetate buffer pH 3.80 in the presence of 0.01% of MC, the migration time of analytes were 1.35 min for ATP, 1.85 min for ADP, and 4.64 min for AMP. These conditions gave a good reproducibility for intra- and interassay (CV <4 and 8%, respectively) and all the procedure demonstrated an excellent analytical recovery (from 98.3 to 99 %). The method suitability was proved both on red blood cells and in spermatozoa. We compared our proposed method to a spectrophotometric assay, by measuring ATP levels in 40 spermatozoa samples. The obtained data were analyzed by the Passing and Bablok regression and Bland-Altman test.

Item Type:Article
ID Code:1707
Status:Published
Refereed:Yes
Uncontrolled Keywords:Adenosine 5'-diphosphate , adenosine 5'-monophosphate, adenosine 5'-triphosphate, capillary electrophoresis, methylcellulose
Subjects:Area 07 - Scienze agrarie e veterinarie > VET/02 Fisiologia veterinaria
Area 05 - Scienze biologiche > BIO/10 Biochimica
Area 05 - Scienze biologiche > BIO/12 Biochimica clinica e biologia molecolare clinica
Divisions:001 Università di Sassari > 01 Dipartimenti > Scienze fisiologiche, biochimiche e cellulari
001 Università di Sassari > 01 Dipartimenti > Scienze biomediche
001 Università di Sassari > 01 Dipartimenti > Biologia animale
Publisher:Wiley
eISSN:1522-2683
Additional Information:Pubblicato online il 13 giugno 2008.
Deposited On:18 Aug 2009 10:05

I documenti depositati in UnissResearch sono protetti dalle leggi che regolano il diritto d'autore

Repository Staff Only: item control page