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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

High-resolution multiple reaction monitoring method for quantification of steroidal hormones in plasma

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Ferranti Peti, Ana Paula [1] ; Locachevic, Gisele Aparecida [1] ; Borges Prado, Morgana Kelly [1] ; Beraldo de Moraes, Luiz Alberto [2] ; Faccioli, Lucia Helena [1]
Total Authors: 5
[1] Univ Sao Paulo, Fac Ciencias Farmaceut Ribeirao Preto, Dept Anal Clin Toxicol & Bromatol, Av Cafe S-N, BR-14040903 Ribeirao Preto, SP - Brazil
[2] Univ Sao Paulo, Fac Filosofia Ciencias & Letras Ribeirao Pret, Dept Quim, Av Bandeirantes 3900, BR-14040903 Ribeirao Preto, SP - Brazil
Total Affiliations: 2
Document type: Journal article
Source: Journal of Mass Spectrometry; v. 53, n. 5, p. 423-431, MAY 2018.
Web of Science Citations: 3

Multiple reaction monitoring (MRM) is one of the most powerful modes of analysis in liquid chromatographic tandem mass spectrometry for quantification of low-concentration metabolites in biological samples. The advances in mass spectrometry enabled the development of high-resolution multiple reaction monitoring (MRMHR) and became suitable for the more specific analysis of target analytes. This is important for lipidomic studies and contributes in the medical and pharmaceutical fields, primarily in investigating alterations in cells or fluids relevant to various diseases. Therefore, this work proposes the development of the MRMHR method for quantification of circulating steroids. We focused on the determination of corticosterone, 11-dehydrocorticosterone (11-DHC), cortisol, cortisone, aldosterone, and progesterone concentration in serum, by using 129sv male mice exposed to chronic unpredictable stress to validate the quantification. The method was conducted according to the ANVISA normative, adopting a coefficient of variation, as well as relative standard deviation and relative error lower than 15% in linearity, intraday and interday precision, and accuracy. For cortisol, corticosterone, and their inert metabolites (cortisone and 11-DHC), the lower limit of quantification was 3.9ngmL(-1), while that for progesterone and aldosterone was 7.8 and 15.6ngmL(-1), respectively. MRMHR analysis showed that animals submitted to stressors have 4.5 times more corticosterone in their serum than nonstressed mice. However, 11-DHC concentration does not vary significantly in response to stress for these animals. The results indicate that the method can be applied for quantification of steroids in several biological samples, such as human plasma. (AU)

FAPESP's process: 14/07125-6 - New functional aspects of eicosanoids
Grantee:Lúcia Helena Faccioli
Support Opportunities: Research Projects - Thematic Grants
FAPESP's process: 16/16788-4 - Simultaneous identification and quantification of cytochrome-P450 pathway (CYP450)-derived eicosanoids using high performance liquid chromatography coupled to sequential mass spectrometry (HPLC-MS/MS)
Grantee:Ana Paula Ferranti Peti
Support Opportunities: Scholarships in Brazil - Post-Doctoral
FAPESP's process: 15/00658-1 - New functional aspects of eicosanoids
Grantee:Lúcia Helena Faccioli
Support Opportunities: Multi-user Equipment Program