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Çağatay NU, Maviş ME, Erarpat S, Bakırdere S. Development of Fe 3O 4/reduced graphene oxide nanocomposite-based dispersive solid-phase extraction for the quantification of five steroid hormones. Bioanalysis 2023. [PMID: 37125877 DOI: 10.4155/bio-2023-0025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/02/2023] Open
Abstract
Aim: An accurate and sensitive analytical method was proposed to detect some steroid hormones in biological samples. Materials & methods: An Fe3O4/reduced graphene oxide nanocomposite-based dispersive solid-phase extraction was developed for the effective and simple preconcentration of steroid hormones from human serum samples. Results & conclusion: The nanocomposite was firstly used as adsorbent to simultaneously extract the selected hormones. Limit of detection values for the selected hormones were calculated between 5.5 and 39.2 ng/kg (mass based). An artificial serum sample was used to test the applicability and accuracy of the developed method; percentage recovery results obtained from two different spiked concentrations were found to be in the range of 80.5-99.9%.
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Affiliation(s)
- Neşe Ular Çağatay
- Yıldız Technical University, Faculty of Art & Science, Department of Chemistry, 34220, İstanbul, Türkiye
- Sem Laboratuar Cihazları Pazarlama San. ve Tic. A.Ş., R&D Center, Barbaros Mah. Temmuz Sok, no: 6, 34746, Ataşehir, İstanbul, Türkiye
| | - Murat Emrah Maviş
- Sem Laboratuar Cihazları Pazarlama San. ve Tic. A.Ş., R&D Center, Barbaros Mah. Temmuz Sok, no: 6, 34746, Ataşehir, İstanbul, Türkiye
| | - Sezin Erarpat
- Yıldız Technical University, Faculty of Art & Science, Department of Chemistry, 34220, İstanbul, Türkiye
| | - Sezgin Bakırdere
- Yıldız Technical University, Faculty of Art & Science, Department of Chemistry, 34220, İstanbul, Türkiye
- Turkish Academy of Sciences (TÜBA), Vedat Dalokay Street, no. 112, Çankaya, 06670, Ankara, Türkiye
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Vechin FC, Vingren JL, Telles GD, Conceicao MS, Libardi CA, Lixandrao ME, Damas F, Cunha TF, Brum PC, Riani LA, Ugrinowitsch C. Acute changes in serum and skeletal muscle steroids in resistance-trained men. Front Endocrinol (Lausanne) 2023; 14:1081056. [PMID: 37077354 PMCID: PMC10106780 DOI: 10.3389/fendo.2023.1081056] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/26/2022] [Accepted: 03/20/2023] [Indexed: 04/05/2023] Open
Abstract
INTRODUCTION Resistance exercise can significantly increase serum steroid concentrations after an exercise bout. Steroid hormones are involved in the regulation of several important bodily functions (e.g., muscle growth) through both systemic delivery and local production. Thus, we aimed to determine whether resistance exercise-induced increases in serum steroid hormone concentrations are accompanied by enhanced skeletal muscle steroid concentrations, or whether muscle contractions per se induced by resistance exercise can increase intramuscular steroid concentrations. METHODS A counterbalanced, within-subject, crossover design was applied. Six resistance-trained men (26 ± 5 years; 79 ± 8 kg; 179 ± 10 cm) performed a single-arm lateral raise exercise (10 sets of 8 to 12 RM - 3 min rest between sets) targeting the deltoid muscle followed by either squat exercise (10 sets of 8 to 12 RM - 1 min rest) to induce a hormonal response (high hormone [HH] condition) or rest (low hormone [LH] condition). Blood samples were obtained pre-exercise and 15 min and 30 min post-exercise; muscle specimens were harvested pre-exercise and 45 min post-exercise. Immunoassays were used to measure serum and muscle steroids (total and free testosterone, dehydroepiandrosterone sulfate, dihydrotestosterone, and cortisol; free testosterone measured only in serum and dehydroepiandrosterone only in muscle) at these time points. RESULTS In the serum, only cortisol significantly increased after the HH protocol. There were no significant changes in muscle steroid concentrations after the protocols. DISCUSSION Our study provides evidence that serum steroid concentration increases (cortisol only) seem not to be aligned with muscle steroid concentrations. The lack of change in muscle steroid after protocols suggests that resistance-trained individuals were desensitized to the exercise stimuli. It is also possible that the single postexercise timepoint investigated in this study might be too early or too late to observe changes. Thus, additional timepoints should be examined to determine if RE can indeed change muscle steroid concentrations either by skeletal muscle uptake of these hormones or the intramuscular steroidogenesis process.
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Affiliation(s)
- Felipe C. Vechin
- School of Physical Education and Sport, University of São Paulo, São Paulo, Brazil
| | - Jakob L. Vingren
- Department of Kinesiology, Health Promotion, and Recreation, University of North Texas, Denton, TX, United States
| | - Guilherme D. Telles
- School of Physical Education and Sport, University of São Paulo, São Paulo, Brazil
| | - Miguel S. Conceicao
- School of Physical Education and Sport, University of São Paulo, São Paulo, Brazil
| | - Cleiton A. Libardi
- MUSCULAB - Laboratory of Neuromuscular Adaptations to Resistance Training, Department of Physical Education, Federal University of São Carlos, São Carlos, Brazil
| | - Manoel E. Lixandrao
- School of Physical Education and Sport, University of São Paulo, São Paulo, Brazil
| | - Felipe Damas
- School of Physical Education and Sport, University of São Paulo, São Paulo, Brazil
- MUSCULAB - Laboratory of Neuromuscular Adaptations to Resistance Training, Department of Physical Education, Federal University of São Carlos, São Carlos, Brazil
| | - Telma F. Cunha
- School of Physical Education and Sport, University of São Paulo, São Paulo, Brazil
| | - Patricia C. Brum
- School of Physical Education and Sport, University of São Paulo, São Paulo, Brazil
| | - Luiz A. Riani
- School of Physical Education and Sport, University of São Paulo, São Paulo, Brazil
| | - Carlos Ugrinowitsch
- School of Physical Education and Sport, University of São Paulo, São Paulo, Brazil
- *Correspondence: Carlos Ugrinowitsch,
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Briegel J, Möhnle P, Keh D, Lindner JM, Vetter AC, Bogatsch H, Lange D, Frank S, Hinske LC, Annane D, Vogeser M, Bauer M, Brenner T, Meybohm P, Weigand M, Gründling M, Löffler M, Kiehntopf M, Bloos F, Elke G, Meersch-Dini M, Putensen C, Kaasch A, Kluge S. Corticotropin-stimulated steroid profiles to predict shock development and mortality in sepsis: From the HYPRESS study. Crit Care 2022; 26:343. [DOI: 10.1186/s13054-022-04224-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2022] [Accepted: 10/28/2022] [Indexed: 11/09/2022] Open
Abstract
Abstract
Rationale
Steroid profiles in combination with a corticotropin stimulation test provide information about steroidogenesis and its functional reserves in critically ill patients.
Objectives
We investigated whether steroid profiles before and after corticotropin stimulation can predict the risk of in-hospital death in sepsis.
Methods
An exploratory data analysis of a double blind, randomized trial in sepsis (HYPRESS [HYdrocortisone for PRevention of Septic Shock]) was performed. The trial included adult patients with sepsis who were not in shock and were randomly assigned to placebo or hydrocortisone treatment. Corticotropin tests were performed in patients prior to randomization and in healthy subjects. Cortisol and precursors of glucocorticoids (17-OH-progesterone, 11-desoxycortisol) and mineralocorticoids (11-desoxycorticosterone, corticosterone) were analyzed using the multi-analyte stable isotope dilution method (LC–MS/MS). Measurement results from healthy subjects were used to determine reference ranges, and those from placebo patients to predict in-hospital mortality.
Measurements and main results
Corticotropin tests from 180 patients and 20 volunteers were included. Compared to healthy subjects, patients with sepsis had elevated levels of 11-desoxycorticosterone and 11-desoxycortisol, consistent with activation of both glucocorticoid and mineralocorticoid pathways. After stimulation with corticotropin, the cortisol response was subnormal in 12% and the corticosterone response in 50% of sepsis patients. In placebo patients (n = 90), a corticotropin-stimulated cortisol-to-corticosterone ratio > 32.2 predicted in-hospital mortality (AUC 0.8 CI 0.70–0.88; sensitivity 83%; and specificity 78%). This ratio also predicted risk of shock development and 90-day mortality.
Conclusions
In this exploratory analysis, we found that in sepsis mineralocorticoid steroidogenesis was more frequently impaired than glucocorticoid steroidogenesis. The corticotropin-stimulated cortisol-to-corticosterone ratio predicts the risk of in-hospital death.
Trial registration Clinical trial registered with www.clinicaltrials.gov Identifier: NCT00670254. Registered 1 May 2008, https://clinicaltrials.gov/ct2/show/NCT00670254.
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Choi MH. Clinical and Technical Aspects in Free Cortisol Measurement. Endocrinol Metab (Seoul) 2022; 37:599-607. [PMID: 35982612 PMCID: PMC9449105 DOI: 10.3803/enm.2022.1549] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/11/2022] [Revised: 07/22/2022] [Accepted: 07/28/2022] [Indexed: 11/11/2022] Open
Abstract
Accurate measurement of cortisol is critical in adrenal insufficiency as it reduces the risk associated with misdiagnosis and supports the optimization of stress dose. Comprehensive assays have been developed to determine the levels of bioactive free cortisol and their clinical and analytical efficacies have been extensively discussed because the level of total cortisol is affected by changes in the structure or circulating levels of corticoid-binding globulin and albumin, which are the main reservoirs of cortisol in the human body. Antibody-based immunoassays are routinely used in clinical laboratories; however, the lack of molecular specificity in cortisol assessment limits their applicability to characterize adrenocortical function. Improved specificity and sensitivity can be achieved by mass spectrometry coupled with chromatographic separation methods, which is a cutting-edge technology to measure individual as well as a panel of steroids in a single analytical run. The purpose of this review is to introduce recent advances in free cortisol measurement from the perspectives of clinical specimens and issues associated with prospective analytical technologies.
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Affiliation(s)
- Man Ho Choi
- Center for Advanced Biomolecular Recognition, Korea Institute of Science and Technology, Seoul, Korea
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Thomas SN, French D, Jannetto PJ, Rappold BA, Clarke WA. Liquid chromatography–tandem mass spectrometry for clinical diagnostics. NATURE REVIEWS. METHODS PRIMERS 2022; 2:96. [PMCID: PMC9735147 DOI: 10.1038/s43586-022-00175-x] [Citation(s) in RCA: 30] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Accepted: 10/07/2022] [Indexed: 12/13/2022]
Abstract
Mass spectrometry is a powerful analytical tool used for the analysis of a wide range of substances and matrices; it is increasingly utilized for clinical applications in laboratory medicine. This Primer includes an overview of basic mass spectrometry concepts, focusing primarily on tandem mass spectrometry. We discuss experimental considerations and quality management, and provide an overview of some key applications in the clinic. Lastly, the Primer discusses significant challenges for implementation of mass spectrometry in clinical laboratories and provides an outlook of where there are emerging clinical applications for this technology. Tandem mass spectrometry is increasingly utilized for clinical applications in laboratory medicine. In this Primer, Thomas et al. discuss experimental considerations and quality management for implementing clinical tandem mass spectrometry in the clinic with an overview of some key applications.
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Affiliation(s)
- Stefani N. Thomas
- grid.17635.360000000419368657Laboratory Medicine and Pathology, University of Minnesota, Minneapolis, MN USA
| | - Deborah French
- grid.266102.10000 0001 2297 6811Laboratory Medicine, University of California San Francisco, San Francisco, CA USA
| | - Paul J. Jannetto
- grid.66875.3a0000 0004 0459 167XDepartment of Pathology & Laboratory Medicine, Mayo Clinic, Rochester, MN USA
| | - Brian A. Rappold
- grid.419316.80000 0004 0550 1859Research and Development, Labcorp, Burlington, NC USA
| | - William A. Clarke
- grid.21107.350000 0001 2171 9311Department of Pathology, Johns Hopkins University School of Medicine, Baltimore, MD USA
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Ku EJ, Lee C, Shim J, Lee S, Kim KA, Kim SW, Rhee Y, Kim HJ, Lim JS, Chung CH, Chun SW, Yoo SJ, Ryu OH, Cho HC, Hong AR, Ahn CH, Kim JH, Choi MH. Metabolic Subtyping of Adrenal Tumors: Prospective Multi-Center Cohort Study in Korea. Endocrinol Metab (Seoul) 2021; 36:1131-1141. [PMID: 34674508 PMCID: PMC8566125 DOI: 10.3803/enm.2021.1149] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/11/2021] [Revised: 09/01/2021] [Accepted: 09/10/2021] [Indexed: 12/27/2022] Open
Abstract
BACKGROUND Conventional diagnostic approaches for adrenal tumors require multi-step processes, including imaging studies and dynamic hormone tests. Therefore, this study aimed to discriminate adrenal tumors from a single blood sample based on the combination of liquid chromatography-mass spectrometry (LC-MS) and machine learning algorithms in serum profiling of adrenal steroids. METHODS The LC-MS-based steroid profiling was applied to serum samples obtained from patients with nonfunctioning adenoma (NFA, n=73), Cushing's syndrome (CS, n=30), and primary aldosteronism (PA, n=40) in a prospective multicenter study of adrenal disease. The decision tree (DT), random forest (RF), and extreme gradient boost (XGBoost) were performed to categorize the subtypes of adrenal tumors. RESULTS The CS group showed higher serum levels of 11-deoxycortisol than the NFA group, and increased levels of tetrahydrocortisone (THE), 20α-dihydrocortisol, and 6β-hydroxycortisol were found in the PA group. However, the CS group showed lower levels of dehydroepiandrosterone (DHEA) and its sulfate derivative (DHEA-S) than both the NFA and PA groups. Patients with PA expressed higher serum 18-hydroxycortisol and DHEA but lower THE than NFA patients. The balanced accuracies of DT, RF, and XGBoost for classifying each type were 78%, 96%, and 97%, respectively. In receiver operating characteristics (ROC) analysis for CS, XGBoost, and RF showed a significantly greater diagnostic power than the DT. However, in ROC analysis for PA, only RF exhibited better diagnostic performance than DT. CONCLUSION The combination of LC-MS-based steroid profiling with machine learning algorithms could be a promising one-step diagnostic approach for the classification of adrenal tumor subtypes.
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Affiliation(s)
- Eu Jeong Ku
- Department of Internal Medicine, Chungbuk National University Hospital, Chungbuk National University College of Medicine, Cheongju,
Korea
| | - Chaelin Lee
- Molecular Recognition Research Center, Korea Institute of Science and Technology, Seoul,
Korea
| | - Jaeyoon Shim
- Molecular Recognition Research Center, Korea Institute of Science and Technology, Seoul,
Korea
| | - Sihoon Lee
- Department of Internal Medicine, Gachon University College of Medicine, Incheon,
Korea
| | - Kyoung-Ah Kim
- Department of Internal Medicine, Dongguk University Ilsan Hospital, Dongguk University College of Medicine, Goyang,
Korea
| | - Sang Wan Kim
- Department of Internal Medicine, Seoul Metropolitan Government Seoul National University Boramae Medical Center, Seoul National University College of Medicine, Seoul,
Korea
| | - Yumie Rhee
- Department of Internal Medicine, Yonsei University College of Medicine, Seoul,
Korea
| | - Hyo-Jeong Kim
- Department of Internal Medicine, Nowon Eulji Medical Center, Eulji University, Seoul,
Korea
| | - Jung Soo Lim
- Department of Internal Medicine, Yonsei University Wonju College of Medicine, Wonju,
Korea
| | - Choon Hee Chung
- Department of Internal Medicine, Yonsei University Wonju College of Medicine, Wonju,
Korea
| | - Sung Wan Chun
- Department of Internal Medicine, Soonchunhyang University Cheonan Hospital, Soonchunhyang University College of Medicine, Cheonan,
Korea
| | - Soon-Jib Yoo
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Bucheon St. Mary’s Hospital, College of Medicine, The Catholic University of Korea, Bucheon,
Korea
| | - Ohk-Hyun Ryu
- Department of Internal Medicine, Hallym University Chuncheon Sacred Heart Hospital, Hallym University College of Medicine, Chuncheon,
Korea
| | - Ho Chan Cho
- Department of Internal Medicine, Keimyung University School of Medicine, Daegu,
Korea
| | - A Ram Hong
- Department of Internal Medicine, Chonnam National University Medical School, Gwangju,
Korea
| | - Chang Ho Ahn
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seongnam,
Korea
| | - Jung Hee Kim
- Department of Internal Medicine, Seoul National University Hospital, Seoul National University College of Medicine, Seoul,
Korea
| | - Man Ho Choi
- Molecular Recognition Research Center, Korea Institute of Science and Technology, Seoul,
Korea
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