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Kaleta M, Oklestkova J, Klíčová K, Kvasnica M, Koníčková D, Menšíková K, Strnad M, Novák O. Simultaneous Determination of Selected Steroids with Neuroactive Effects in Human Serum by Ultrahigh-Performance Liquid Chromatography-Tandem Mass Spectrometry. ACS Chem Neurosci 2024; 15:1990-2005. [PMID: 38655788 PMCID: PMC11099924 DOI: 10.1021/acschemneuro.3c00824] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2023] [Revised: 03/27/2024] [Accepted: 04/15/2024] [Indexed: 04/26/2024] Open
Abstract
Neuroactive steroids are a group of steroid molecules that are involved in the regulation of functions of the nervous system. The nervous system is not only the site of their action, but their biosynthesis can also occur there. Neuroactive steroid levels depend not only on the physiological state of an individual (person's sex, age, diurnal variation, etc.), but they are also affected by various pathological processes in the nervous system (some neurological and psychiatric diseases or injuries), and new knowledge can be gained by monitoring these processes. The aim of our research was to develop and validate a comprehensive method for the simultaneous determination of selected steroids with neuroactive effects in human serum. The developed method enables high throughput and a sensitive quantitative analysis of nine neuroactive steroid substances (pregnenolone, progesterone, 5α-dihydroprogesterone, allopregnanolone, testosterone, 5α-dihydrotestosterone, androstenedione, dehydroepiandrosterone, and epiandrosterone) in 150 μL of human serum by ultrahigh-performance liquid chromatography with tandem mass spectrometry. The correlation coefficients above 0.999 indicated that the developed analytical procedure was linear in the range of 0.90 nmol/L to 28.46 μmol/L in human serum. The accuracy and precision of the method for all analytes ranged from 83 to 118% and from 0.9 to 14.1%, respectively. This described method could contribute to a deeper understanding of the pathophysiology of various diseases. Similarly, it can also be helpful in the search for new biomarkers and diagnostic options or therapeutic approaches.
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Affiliation(s)
- Michal Kaleta
- Laboratory
of Growth Regulators, Faculty of Science, Palacký University & Institute of Experimental Botany
of the Czech Academy of Sciences, Šlechtitelů 27, Olomouc 783 71, Czech Republic
- Department
of Neurology, Faculty of Medicine and Dentistry, Palacký University, Olomouc 779 00, Czech Republic
| | - Jana Oklestkova
- Laboratory
of Growth Regulators, Faculty of Science, Palacký University & Institute of Experimental Botany
of the Czech Academy of Sciences, Šlechtitelů 27, Olomouc 783 71, Czech Republic
| | - Kateřina Klíčová
- Department
of Neurology, Faculty of Medicine and Dentistry, Palacký University, Olomouc 779 00, Czech Republic
- Department
of Neurology, University Hospital Olomouc, Olomouc 779 00, Czech Republic
| | - Miroslav Kvasnica
- Laboratory
of Growth Regulators, Faculty of Science, Palacký University & Institute of Experimental Botany
of the Czech Academy of Sciences, Šlechtitelů 27, Olomouc 783 71, Czech Republic
| | - Dorota Koníčková
- Department
of Neurology, Faculty of Medicine and Dentistry, Palacký University, Olomouc 779 00, Czech Republic
- Department
of Neurology, University Hospital Olomouc, Olomouc 779 00, Czech Republic
| | - Kateřina Menšíková
- Department
of Neurology, Faculty of Medicine and Dentistry, Palacký University, Olomouc 779 00, Czech Republic
- Department
of Neurology, University Hospital Olomouc, Olomouc 779 00, Czech Republic
| | - Miroslav Strnad
- Laboratory
of Growth Regulators, Faculty of Science, Palacký University & Institute of Experimental Botany
of the Czech Academy of Sciences, Šlechtitelů 27, Olomouc 783 71, Czech Republic
| | - Ondřej Novák
- Laboratory
of Growth Regulators, Faculty of Science, Palacký University & Institute of Experimental Botany
of the Czech Academy of Sciences, Šlechtitelů 27, Olomouc 783 71, Czech Republic
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Hou Y, Lu X, Yang J, Tang C, Jiang H, Cai T, Chen M, Wei Z, Yu P. A label-free fluorescent aptamer sensor for testosterone based on SYBR Green I. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2023; 15:1546-1552. [PMID: 36883443 DOI: 10.1039/d3ay00055a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
Testosterone is a steroid hormone that plays an indispensable role in the normal metabolism of organisms. However, exogenous testosterone, even as low as nmol L-1, will harm the human body due to accumulation. In this study, we developed an unlabeled fluorescent sensor for testosterone based on SYBR Green I. SYBR Green I is a fluorescent dye that can be embedded into the G-quadruplex of the testosterone aptamer T5. The fluorescence quenching effect is utilized to achieve quantitative detection, which occurs by the competition between testosterone and SYBR Green I for the T5 aptamer binding sites. In this work, we optimized the detection conditions to make the fluorescent sensor more sensitive and verify the specificity, linear range, and detection ability in the buffer and real water samples. The sensor's LOD and LOQ values were 0.27 nmol L-1 and 0.91 nmol L-1, respectively, while the detection range was linear from 0.91 nmol L-1 to 2000 nmol L-1. According to the results, the sensor shows high specificity and good performance even in real sample detection such as tap water and river water, providing an alternative method for the quantitative detection of testosterone in the environment, which is more convenient and efficient.
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Affiliation(s)
- Yucui Hou
- Xiangya School of Pharmaceutical Sciences, Central South University, No. 172, Tongzipo Road, Changsha 410013, Hunan Province, China.
| | - Xiaoling Lu
- Xiangya School of Pharmaceutical Sciences, Central South University, No. 172, Tongzipo Road, Changsha 410013, Hunan Province, China.
| | - Jie Yang
- Xiangya School of Pharmaceutical Sciences, Central South University, No. 172, Tongzipo Road, Changsha 410013, Hunan Province, China.
| | - Chunhua Tang
- Xiangya School of Pharmaceutical Sciences, Central South University, No. 172, Tongzipo Road, Changsha 410013, Hunan Province, China.
| | - Hanbing Jiang
- Xiangya School of Pharmaceutical Sciences, Central South University, No. 172, Tongzipo Road, Changsha 410013, Hunan Province, China.
| | - Tongji Cai
- Xiangya School of Pharmaceutical Sciences, Central South University, No. 172, Tongzipo Road, Changsha 410013, Hunan Province, China.
| | - Meilun Chen
- Xiangya School of Pharmaceutical Sciences, Central South University, No. 172, Tongzipo Road, Changsha 410013, Hunan Province, China.
| | - Zheng Wei
- Xiangya School of Pharmaceutical Sciences, Central South University, No. 172, Tongzipo Road, Changsha 410013, Hunan Province, China.
| | - Peng Yu
- Xiangya School of Pharmaceutical Sciences, Central South University, No. 172, Tongzipo Road, Changsha 410013, Hunan Province, China.
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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: 38] [Impact Index Per Article: 19.0] [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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Kaleta M, Oklestkova J, Novák O, Strnad M. Analytical Methods for the Determination of Neuroactive Steroids. Biomolecules 2021; 11:553. [PMID: 33918915 PMCID: PMC8068886 DOI: 10.3390/biom11040553] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2021] [Revised: 04/01/2021] [Accepted: 04/08/2021] [Indexed: 12/27/2022] Open
Abstract
Neuroactive steroids are a family of all steroid-based compounds, of both natural and synthetic origin, which can affect the nervous system functions. Their biosynthesis occurs directly in the nervous system (so-called neurosteroids) or in peripheral endocrine tissues (hormonal steroids). Steroid hormone levels may fluctuate due to physiological changes during life and various pathological conditions affecting individuals. A deeper understanding of neuroactive steroids' production, in addition to reliable monitoring of their levels in various biological matrices, may be useful in the prevention, diagnosis, monitoring, and treatment of some neurodegenerative and psychiatric diseases. The aim of this review is to highlight the most relevant methods currently available for analysis of neuroactive steroids, with an emphasis on immunoanalytical methods and gas, or liquid chromatography combined with mass spectrometry.
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Affiliation(s)
| | - Jana Oklestkova
- Laboratory of Growth Regulators, Faculty of Science and Institute of Experimental Botany of the Czech Academy of Sciences, Palacký University, Šlechtitelů 27, CZ-78371 Olomouc, Czech Republic; (M.K.); (O.N.); (M.S.)
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LH supplementation of ovarian stimulation protocols influences follicular fluid steroid composition contributing to the improvement of ovarian response in poor responder women. Sci Rep 2020; 10:12907. [PMID: 32737326 PMCID: PMC7395161 DOI: 10.1038/s41598-020-69325-z] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2020] [Accepted: 07/09/2020] [Indexed: 11/15/2022] Open
Abstract
In this prospective study, we evaluated the steroid levels in 111 follicular fluids (FF) collected from 13 women stimulated with FSH monotherapy and 205 FF collected from 28 women stimulated with FSH + LH because of a previous history of hypo-responsiveness to FSH. Steroid levels were measured by HPLC/MS–MS and related to ovarian stimulation protocol, oocyte maturity, fertilization and quality of blastocysts, after individually tracking the fate of all retrieved oocytes. 17-Hydroxy-Progesterone, Androstenedione, Estradiol and Estrone were significantly higher in the FSH + LH protocol. Progesterone, 17-Hydroxy-Progesterone and Estradiol were more expressed in FF yielding a mature oocyte (p < 0.01) in the FSH + LH protocol. FF Progesterone concentration was correlated with the rate of normal fertilization in the FSH protocol. None of the FF steroids measured were associated with blastocyst quality and achievement of pregnancy. Our results indicate that LH supplementation in hypo-responsive women modifies ovarian steroid production, mimicking physiological production better and likely contributing to an improved ovarian response. Employing a correct methodological procedure to evaluate the relationship between FF steroid hormones and assisted reproduction outcomes, our study reveals that some steroids in single follicles may be helpful in predicting oocyte maturity and fertilization.
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Weiss RV, Hohl A, Athayde A, Pardini D, Gomes L, de Oliveira M, Meirelles R, Clapauch R, Spritzer PM. Testosterone therapy for women with low sexual desire: a position statement from the Brazilian Society of Endocrinology and Metabolism. ARCHIVES OF ENDOCRINOLOGY AND METABOLISM 2019; 63:190-198. [PMID: 31340240 PMCID: PMC10522198 DOI: 10.20945/2359-3997000000152] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/02/2019] [Accepted: 04/22/2019] [Indexed: 11/23/2022]
Abstract
OBJECTIVE To summarize current evidence regarding testosterone treatment for women with low sexual desire. MATERIALS AND METHODS The Female Endocrinology and Andrology Department of the Brazilian Society of Endocrinology and Metabolism invited nine experts to review the physiology of testosterone secretion and the use, misuse, and side effects of exogenous testosterone therapy in women, based on the available literature and guidelines and statements from international societies. RESULTS Low sexual desire is a common complaint in clinical practice, especially in postmenopausal women, and may negatively interfere with quality of life. Testosterone seems to exert a positive effect on sexual desire in women with sexual dysfunction, despite a small magnitude of effect, a lack of long-term safety data, and insufficient evidence to make a broad recommendation for testosterone therapy. Furthermore, there are currently no testosterone formulations approved for women by the relevant regulatory agencies in the United States, Brazil, and most other countries, and testosterone formulations approved for men are not recommended for use by women. CONCLUSION Therefore, testosterone therapy might be considered if other strategies fail, but the risks and benefits must be discussed with the patient before prescription. Arch Endocrinol Metab. 2019;63(3):190-8.
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Affiliation(s)
- Rita V. Weiss
- Pontifícia Universidade Católica do Rio de JaneiroInstituto Estadual de Diabetes e Endocrinologia Luiz CapriglionePontifícia Universidade Católica do Rio de JaneiroEscola Médica de Pós-Graduação em EndocrinologiaRio de JaneiroRJBrasilInstituto Estadual de Diabetes e Endocrinologia Luiz Capriglione, Pontifícia Universidade Católica do Rio de Janeiro, Escola Médica de Pós-Graduação em Endocrinologia (IEDE-PUC/RJ), Rio de Janeiro, RJ, Brasil
| | - Alexandre Hohl
- Universidade Federal de Santa CatarinaDepartamento de Medicina InternaHospital UniversitárioUniversidade Federal de Santa CatarinaFlorianópolisSCBrasilServiço de Endocrinologia e Metabolismo, Departamento de Medicina Interna, Hospital Universitário (HU), Universidade Federal de Santa Catarina (UFSC), Florianópolis, SC, Brasil
| | - Amanda Athayde
- Pontifícia Universidade Católica do Rio de JaneiroInstituto Estadual de Diabetes e Endocrinologia Luiz CapriglionePontifícia Universidade Católica do Rio de JaneiroEscola Médica de Pós-Graduação em EndocrinologiaRio de JaneiroRJBrasilInstituto Estadual de Diabetes e Endocrinologia Luiz Capriglione, Pontifícia Universidade Católica do Rio de Janeiro, Escola Médica de Pós-Graduação em Endocrinologia (IEDE-PUC/RJ), Rio de Janeiro, RJ, Brasil
- Universidade Federal do Rio de JaneiroUniversidade Federal do Rio de JaneiroRio de JaneiroRJBrasilUniversidade Federal do Rio de Janeiro (UFRJ), Rio de Janeiro, RJ, Brasil
| | - Dolores Pardini
- Universidade Federal de São PauloUniversidade Federal de São PauloSão PauloSPBrasilDisciplina de Endocrinologia, Universidade Federal de São Paulo (UNIFESP), São Paulo, SP, Brasil
| | - Larissa Gomes
- Universidade de São PauloFaculdade de MedicinaHospital de ClínicasUniversidade de São PauloSão PauloSPBrasilDisciplina de Endocrinologia, Faculdade de Medicina, Hospital de Clínicas, Universidade de São Paulo (USP), São Paulo, SP, Brasil
| | - Monica de Oliveira
- Instituto de Medicina Integral Professor Fernando FigueiraInstituto de Medicina Integral Professor Fernando FigueiraRecifePEBrasilInstituto de Medicina Integral Professor Fernando Figueira, Recife, PE, Brasil
| | - Ricardo Meirelles
- Pontifícia Universidade Católica do Rio de JaneiroInstituto Estadual de Diabetes e Endocrinologia Luiz CapriglionePontifícia Universidade Católica do Rio de JaneiroEscola Médica de Pós-Graduação em EndocrinologiaRio de JaneiroRJBrasilInstituto Estadual de Diabetes e Endocrinologia Luiz Capriglione, Pontifícia Universidade Católica do Rio de Janeiro, Escola Médica de Pós-Graduação em Endocrinologia (IEDE-PUC/RJ), Rio de Janeiro, RJ, Brasil
| | - Ruth Clapauch
- Departamento de Fisiologia Endócrina e FisiologiaLaboratório de Pesquisas Clínicas e Experimentais em Biologia VascularRio de JaneiroRJBrasilDepartamento de Fisiologia Endócrina e Fisiologia e Laboratório de Pesquisas Clínicas e Experimentais em Biologia Vascular (BIOVASC), Rio de Janeiro, RJ, Brasil
| | - Poli Mara Spritzer
- Universidade Federal do Rio Grande do SulHospital de Clínicas de Porto AlegreDepartamento de FisiologiaUniversidade Federal do Rio Grande do SulPorto AlegreRSBrasilUnidade de Endocrinologia Ginecológica, Serviço de Endocrinologia, Hospital de Clínicas de Porto Alegre e Departamento de Fisiologia, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brasil
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Shayegan B, Pouliot F, So A, Fernandes J, Macri J. Testosterone monitoring for men with advanced prostate cancer: Review of current practices and a survey of Canadian physicians. Can Urol Assoc J 2017; 11:204-209. [PMID: 28652880 PMCID: PMC5472467 DOI: 10.5489/cuaj.4539] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Androgen-deprivation therapy (ADT) is a standard of care in the treatment of advanced prostate cancer; however, testosterone monitoring practices for men undergoing ADT vary across Canada. Although a testosterone level of 1.7 nmol/L or lower has historically been defined as the accepted castrate level, newer assays with improved sensitivity have shown that both medical and surgical castration can suppress testosterone levels to below 0.7 nmol/L. This review explores the evidence supporting a redefinition of the castrate testosterone level as 0.7 nmol/L or lower, and presents results of a survey of testosterone monitoring practices among 153 Canadian urologists, uro-oncologists, and radiation oncologists who manage the treatment of men with hormone-sensitive prostate cancer.
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Affiliation(s)
- Bobby Shayegan
- Division of Urology, Department of Surgery, McMaster University, Hamilton, ON
| | - Frédéric Pouliot
- Division of Urology, Department of Surgery, Université Laval, Quebec, QC
| | - Alan So
- Department of Urologic Sciences, University of British Columbia, Vancouver, BC
| | - John Fernandes
- Department of Pathology and Molecular Medicine, McMaster University, Hamilton, ON
| | - Joseph Macri
- Department of Pathology and Molecular Medicine, McMaster University, Hamilton, ON
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Mirmonsef P, Hotton AL, Gilbert D, Gioia CJ, Maric D, Hope TJ, Landay AL, Spear GT. Glycogen Levels in Undiluted Genital Fluid and Their Relationship to Vaginal pH, Estrogen, and Progesterone. PLoS One 2016; 11:e0153553. [PMID: 27093050 PMCID: PMC4836725 DOI: 10.1371/journal.pone.0153553] [Citation(s) in RCA: 63] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2015] [Accepted: 03/31/2016] [Indexed: 11/22/2022] Open
Abstract
Background Colonization of the female lower genital tract with Lactobacillus provides protection against STIs and adverse pregnancy outcomes. Growth of genital Lactobacillus is postulated to depend on epithelial cell-produced glycogen. However, the amount of cell-free glycogen in genital fluid available for utilization by Lactobacillus is not known. Methods Eighty-five genital fluid samples from 7 pre-menopausal women taken over 4–6 weeks were obtained using the Instead SoftCup® (EvoFem, Inc., San Diego, CA, USA) by consented donors. Cell-free glycogen and glucose in genital fluids and estrogen and progesterone in blood were quantified. Findings Glycogen ranged from 0.1–32 μg/μl. There were significant differences between women in glycogen over the observation period. There was a strong negative correlation between glycogen and vaginal pH (r = -0.542, p<0.0001). In multivariable analysis, free glycogen levels were significantly negatively associated with both vaginal pH and progesterone (p < 0.001 and p = 0.004, respectively). Estrogen, glucose, age, sexual intercourse 24 hours prior to visit, and days after the initial visit were not significantly associated with free glycogen levels. Conclusion Cell-free glycogen concentrations can be very high, up to 3% of genital fluid, and are strongly associated with acidic vaginal pH. However, the fluctuations in glycogen levels in individuals and differences between individuals do not appear to be associated with estrogen.
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Affiliation(s)
- Paria Mirmonsef
- Department of Immunology/Microbiology, Rush University Medical Center, Chicago, Illinois, United States of America
- * E-mail:
| | - Anna L. Hotton
- The CORE Center, Cook County Health & Hospital System, Chicago, Illinois, United States of America
| | - Douglas Gilbert
- Department of Immunology/Microbiology, Rush University Medical Center, Chicago, Illinois, United States of America
| | - Casey J. Gioia
- Robert H. Lurie Medical Research Center, Northwestern University Feinberg School of Medicine, Chicago, Illinois, United States of America
| | - Danijela Maric
- Robert H. Lurie Medical Research Center, Northwestern University Feinberg School of Medicine, Chicago, Illinois, United States of America
| | - Thomas J. Hope
- Robert H. Lurie Medical Research Center, Northwestern University Feinberg School of Medicine, Chicago, Illinois, United States of America
| | - Alan L. Landay
- Department of Immunology/Microbiology, Rush University Medical Center, Chicago, Illinois, United States of America
| | - Gregory T. Spear
- Department of Immunology/Microbiology, Rush University Medical Center, Chicago, Illinois, United States of America
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