2021
DOI: 10.1007/s00216-021-03393-6
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Sample preparation strategy for the detection of steroid-like compounds using MALDI mass spectrometry imaging: pulmonary distribution of budesonide as a case study

Abstract: Corticosteroids as budesonide can be effective in reducing topic inflammation processes in different organs. Therapeutic use of budesonide in respiratory diseases, like asthma, chronic obstructive pulmonary disease, and allergic rhinitis is well known. However, the pulmonary distribution of budesonide is not well understood, mainly due to the difficulties in tracing the molecule in lung samples without the addition of a label. In this paper, we present a matrix-assisted laser desorption/ionization mass spectro… Show more

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Cited by 15 publications
(16 citation statements)
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References 42 publications
(42 reference statements)
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“…Further studies will be needed to optimize MSI for the assessment of ZF larvae considering various classes of drugs. We plan to further investigate MSI for ZF larvae by applying existing and optimized methods using ZF larvae homogenates [49][50][51] in order to account for possible deviations based on different tissue types [49] and local interfering molecules [45].…”
Section: Spatial Distribution Of 4f-mdmb-binaca and Its Metabolites I...mentioning
confidence: 99%
“…Further studies will be needed to optimize MSI for the assessment of ZF larvae considering various classes of drugs. We plan to further investigate MSI for ZF larvae by applying existing and optimized methods using ZF larvae homogenates [49][50][51] in order to account for possible deviations based on different tissue types [49] and local interfering molecules [45].…”
Section: Spatial Distribution Of 4f-mdmb-binaca and Its Metabolites I...mentioning
confidence: 99%
“…However, the poor ionization of budesonide in lung tissue prevented us from the application of this strategy. To increase the budesonide signal, an on-tissue derivatization step with the GirP reactant had to be performed, as recently described by Zecchi et al [16], which required a dedicated sample preparation. Therefore, SP-C and budesonide images were obtained from consecutive tissue sections.…”
Section: Discussionmentioning
confidence: 99%
“…Budesonide is challenging to detect by MSI as it is not easily protonated or deprotonated. Therefore, to improve the detection of budesonide in lung tissue sections, an on-tissue chemical derivatization protocol was adopted as recently described by Zecchi et al [16]. Briefly, this approach uses GirP as an on tissue derivatizing agent, followed by FA matrix coating.…”
Section: Sample Preparation and Maldi-msi Analysis For Budesonide Det...mentioning
confidence: 99%
“…通常情况下, 萜类植物激素: 如脱落酸(abscisic acid, [207] . Zecchi 等 人 [127] [120,123] 是一种 常用的加成衍生化试剂, 其结合激光辅助组织转移 (laser-assisted tissue transfe, LATT)技术可以增强小分 子组织原位衍生化效率. Guo 等人 [123]…”
Section: F O R R E V I E W O N L Yunclassified