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García-Arnés JA, García-Casares N. Doping and sports endocrinology: growth hormone, IGF-1, insulin, and erythropoietin. Rev Clin Esp 2023; 223:181-187. [PMID: 36736729 DOI: 10.1016/j.rceng.2023.01.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
Among the substances prohibited by the World Anti-Doping Agency, "peptide hormones, growth factors, related substances, and mimetics" are classified as prohibited both in- and out-of-competition in section S2. This work reviews growth hormone and its releasing peptides, insulin-like growth factor 1 as the main growth factor, insulin, and erythropoietin and other agents that affect erythropoiesis. This review analyzes the prevalence of use among professional athletes and gym clients, the forms of use, dosing, ergogenic effects and effects on physical performance, as well as side effects and anti-doping detection methods.
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Affiliation(s)
- J A García-Arnés
- Departamento de Farmacología, Facultad de Medicina, Universidad de Málaga, Málaga, Spain.
| | - N García-Casares
- Departamento de Medicina, Facultad de Medicina, Universidad de Málaga, Málaga, Spain; Centro de Investigaciones Médico-Sanitarias (CIMES), Universidad de Málaga, Málaga, Spain; Instituto de Investigación Biomédica de Málaga (IBIMA), Málaga, Spain
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2
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Otin J, Tran NT, Benoit A, Buisson C, Taverna M. Online large volume sample staking preconcentration and separation of enantiomeric GHRH analogs by capillary electrophoresis. Electrophoresis 2023; 44:807-817. [PMID: 36787346 DOI: 10.1002/elps.202200278] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2022] [Revised: 01/20/2023] [Accepted: 02/04/2023] [Indexed: 02/15/2023]
Abstract
A capillary electrophoresis method is proposed to analyze the four most well-known growth hormone-releasing hormone (GHRH) analogs that are misused by athletes. Dimethyl-β-cyclodextrin used as a chiral selector allowed, for the first time, the separation of those basic peptide analogs, including enantiopeptides (sermorelin and CJC-1293) that differ by the chirality of only one amino acid. To increase the method sensitivity, electrokinetic preconcentration methods have been investigated. The large volume sample stacking with polarity switching (PS-LVSS) method with an injected sample volume corresponding to 80% of the capillary one was found superior to the sweeping in terms of signal enhancement factor (SEF). Acid and organic solvent addition to the sample (0.1 mM phosphoric acid with 30% methanol) led to a twofold signal improvement, when compared to water as a matrix. We increased capillary dimensions to provide a signal enhancement through the injection of a larger sample volume. Finally, using a combination of the optimized PS-LVSS preconcentration with the chiral capillary zone electrophoresis (CZE), the GHRH analogs were separated and limits of detection between 75 and 200 ng/mL were reached. This method was successfully applied to urine after a desalting step. An optimized C18 SPE was used for that purpose in order to provide low sample conductivity (<130 µS/cm) and preserve the efficiency of LVSS preconcentration. SEF of 640 was obtained with desalted urine spiked with sermorelin by comparison to the CZE (without preconcentration) method.
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Affiliation(s)
- Joanie Otin
- Institut Galien Paris-Saclay, Université Paris-Saclay, Orsay, France
| | - N Thuy Tran
- Institut Galien Paris-Saclay, Université Paris-Saclay, Orsay, France
| | - Aurélie Benoit
- Laboratoire AntiDopage Français (LADF), Université Paris-Saclay, Chatenay-Malabry, France
| | - Corinne Buisson
- Laboratoire AntiDopage Français (LADF), Université Paris-Saclay, Chatenay-Malabry, France
| | - Myriam Taverna
- Institut Galien Paris-Saclay, Université Paris-Saclay, Orsay, France.,Institut universitaire de France, Paris, France
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3
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García-Arnés J, García-Casares N. Endocrinología del dopaje y los deportes: hormona de crecimiento, IGF-1, insulina y eritropoyetina. Rev Clin Esp 2023. [DOI: 10.1016/j.rce.2022.12.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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4
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RASHIDLAMIR A, ROOZBEH B, BAGHERI R, MOAZZAMI M, MOOSAVI Z, JAVADMANESH A, BAKER JS, WONG A. Interactive effect of exercise training and growth hormone administration on histopathological and functional assessment of the liver in male Wistar rats. J Sports Med Phys Fitness 2022; 62:1278-1285. [DOI: 10.23736/s0022-4707.21.12308-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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5
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Huynh HH, Forrest K, Becker JO, Emrick MA, Miller GD, Moncrieffe D, Cowan DA, Thomas A, Thevis M, MacCoss MJ, Hoffstrom B, Byers PH, Eichner D, Hoofnagle AN. A Targeted Liquid Chromatography-Tandem Mass Spectrometry Method for Simultaneous Quantification of Peptides from the Carboxyl-terminal Region of Type III Procollagen, Biomarkers of Collagen Turnover. Clin Chem 2022; 68:1281-1291. [PMID: 35906802 DOI: 10.1093/clinchem/hvac119] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2022] [Accepted: 06/10/2022] [Indexed: 11/12/2022]
Abstract
BACKGROUND The development of analytical approaches to help reduce the risk of growth hormone (GH) doping is important to fair competition and the health of athletes. However, the reliable detection of GH use remains challenging. The identification of novel biomarkers of GH administration could lead to a better understanding of the physiological response to GH, more sensitive detection of the illicit use of GH in sport, and better management of patients treated for GH disorders. METHODS We developed a targeted liquid chromatography-tandem mass spectrometry method to simultaneously quantify the carboxyl-terminal propeptide of type III procollagen (P-III-CP) and type III collagen degradation products in human serum. Following proteolysis, we instituted a simple acid precipitation step to reduce digested sample complexity before peptide immunoenrichment, which improved the recovery of one target peptide from serum. We evaluated the concentration of each biomarker at different age ranges and after GH administration in healthy participants. RESULTS The assay was linear over an estimated concentration range of 0.3 to1.0 nM and 0.1 to 0.4 nM for each surrogate peptide of P-III-CP and collagen fragments, respectively. Intra-day and inter-day coefficients of variation were ≤15%. Biomarker concentrations appeared to vary with age and to reflect age-specific collagen turnover. Moreover, their concentrations changed after GH administration. CONCLUSIONS Our method quantifies the proteins belonging to the family of P-III-CP and type III collagen degradation products in human serum, which could be used to detect GH administration in athletes and better understand diseases involving GH therapy or altered type III collagen turnover.
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Affiliation(s)
- Huu-Hien Huynh
- Department of Laboratory Medicine and Pathology, University of Washington, Seattle, WA, USA
| | - Katrina Forrest
- Department of Laboratory Medicine and Pathology, University of Washington, Seattle, WA, USA
| | - Jessica O Becker
- Department of Laboratory Medicine and Pathology, University of Washington, Seattle, WA, USA
| | - Michelle A Emrick
- Department of Laboratory Medicine and Pathology, University of Washington, Seattle, WA, USA
| | - Geoffrey D Miller
- Sports Medicine Research and Testing Laboratory, Salt Lake City, UT, USA
| | - Danielle Moncrieffe
- Drug Control Centre, Department of Analytical, Environmental and Forensic Science, King's College London, London, UK.,Department of Analytical, Environmental & Forensic Sciences, King's College London, London, UK
| | - David A Cowan
- Department of Analytical, Environmental & Forensic Sciences, King's College London, London, UK
| | - Andreas Thomas
- Center for Preventive Doping Research (ZePraeDo), Institute of Biochemistry, German Sport University, Cologne, Germany
| | - Mario Thevis
- Center for Preventive Doping Research (ZePraeDo), Institute of Biochemistry, German Sport University, Cologne, Germany
| | - Michael J MacCoss
- Department of Genome Sciences, University of Washington, Seattle, WA, USA
| | - Ben Hoffstrom
- Fred Hutchinson Cancer Research Center, Seattle, WA, USA
| | - Peter H Byers
- Department of Laboratory Medicine and Pathology, University of Washington, Seattle, WA, USA.,Department of Medicine, University of Washington, Seattle, WA, USA
| | - Daniel Eichner
- Sports Medicine Research and Testing Laboratory, Salt Lake City, UT, USA
| | - Andrew N Hoofnagle
- Department of Laboratory Medicine and Pathology, University of Washington, Seattle, WA, USA.,Department of Medicine, University of Washington, Seattle, WA, USA
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Bækken LV, Holden G, Gjelstad A, Lauritzen F. Ten years of collecting hematological athlete biological passport samples—perspectives from a National Anti-doping Organization. Front Sports Act Living 2022; 4:954479. [PMID: 35928963 PMCID: PMC9343672 DOI: 10.3389/fspor.2022.954479] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2022] [Accepted: 06/27/2022] [Indexed: 11/26/2022] Open
Abstract
The hematological module of the Athlete Biological Passport (ABP) aims to reveal blood doping indirectly by looking at selected biomarkers of doping over time. For Anti-Doping Organizations (ADOs), the ABP is a vital tool in the fight against doping in sports through improved target testing and analysis, investigations, deterrence, and as indirect evidence for use of prohibited methods or substances. The physiological characteristics of sport disciplines is an important risk factor in the overall risk assessment and when implementing the hematological module. Sharing of experiences with implementing the hematological ABP between ADOs is key to further strengthen and extend its use. In this study, we present 10 years of experience with the hematological ABP program from the perspectives of a National ADO with special attention to sport disciplines' physiological characteristics as a potential risk factor for blood doping. Not surprisingly, most samples were collected in sport disciplines where the aerobic capacity is vital for performance. The study highlights strengths in Anti-Doping Norway's testing program but also areas that could be improved. For example, it was shown that samples were collected both in and out of season in a subset of the data material that included three popular sports in Norway (Cross-Country Skiing, Nordic Combined, and Biathlon), however, from the total data material it was clear that athletes were more likely to be tested out of competition and on certain days of the week and times of the day. The use of doping control officers with a flexible time schedule and testing outside an athlete's 60 min time-slot could help with a more even distribution during the week and day, and thus reduce the predictability of testing. In addition to promoting a discussion on testing strategies, the study can be used as a starting point for other ADOs on how to examine their own testing program.
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Affiliation(s)
- Lasse V. Bækken
- Nordic Athlete Passport Management Unit, Norwegian Doping Control Laboratory, Department of Pharmacology, Oslo University Hospital, Oslo, Norway
- *Correspondence: Lasse V. Bækken
| | - Geir Holden
- Department of Testing, Investigations and Legal, Anti-doping Norway, Oslo, Norway
| | - Astrid Gjelstad
- Science and Medicine, Anti-doping Norway, Oslo, Norway
- Section of Pharmaceutical Chemistry, Department of Pharmacy, University of Oslo, Oslo, Norway
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7
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Giorgetti A, Busardò FP, Giorgetti R. Toxicological Characterization of GHB as a Performance-Enhancing Drug. Front Psychiatry 2022; 13:846983. [PMID: 35509886 PMCID: PMC9058118 DOI: 10.3389/fpsyt.2022.846983] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/04/2022] [Accepted: 02/25/2022] [Indexed: 11/13/2022] Open
Abstract
Performance-enhancing drugs (PEDs) are represented by several compounds used to ameliorate the image, the appearance, or an athletic or non-athletic performance. Gamma-hydroxybutyrate (GHB) is an endogenous molecule first used as anesthetic and then marketed as a nutritional supplement with a wide diffusion in the bodybuilding community. The aim of the present work is to provide a toxicological characterization of the use of GHB as a PED, including the scientific basis for its use, the patterns of use/abuse, and the health risks arising from its consumption in this peculiar recreative setting. A literature search was performed on multiple databases including experimental studies on humans and animals as well as epidemiological reports and forensic case reports/series. Experimental studies demonstrated that the use of GHB as a PED is motivated by the release of growth hormone and the induction of sleep. However, the panel of desired performance-related effects was much wider in real cases and epidemiological studies. Even though the use of GHB among bodybuilders has decreased, its use to enhance some kind of performance, particularly sexual ones or social-communicative ones, as well as means to increase mood and perceived energy, is still common.
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Affiliation(s)
- Arianna Giorgetti
- Unit of Legal Medicine, Department of Medical and Surgical Sciences, University of Bologna, Bologna, Italy
| | - Francesco Paolo Busardò
- Department of Excellence of Biomedical Sciences and Public Health, "Politecnica delle Marche" University of Ancona, Ancona, Italy
| | - Raffaele Giorgetti
- Department of Excellence of Biomedical Sciences and Public Health, "Politecnica delle Marche" University of Ancona, Ancona, Italy
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8
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Sharma A, Tok AIY, Alagappan P, Liedberg B. Point of care testing of sports biomarkers: Potential applications, recent advances and future outlook. Trends Analyt Chem 2021. [DOI: 10.1016/j.trac.2021.116327] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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9
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Cowan DA, Moncrieffe DA. Procollagen type III amino-terminal propeptide and insulin-like growth factor I as biomarkers of growth hormone administration. Drug Test Anal 2021; 14:808-819. [PMID: 34418311 PMCID: PMC9545871 DOI: 10.1002/dta.3155] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2021] [Revised: 08/11/2021] [Accepted: 08/16/2021] [Indexed: 01/19/2023]
Abstract
The acceptance in 2012 by the World Anti‐Doping Agency (WADA) of the biomarker test for human growth hormone (hGH) based on procollagen type III amino‐terminal propeptide (P‐III‐NP) and insulin‐like growth factor I (IGF‐I) was perhaps the first time that such a method has been used for forensic purposes. Developing a biomarker test to anti‐doping standards, where the strict liability principle applies, is discussed. An alternative WADA‐accepted approach is based on the measurement of different hGH isoforms, a method that suffers from the very short half‐life of hGH limiting the detection period. Modification or withdrawal of the immunoassays, on which the biomarker measurements largely depend, has necessitated revalidation of the assays, remeasurement of samples and adjustment of the decision limits above which an athlete will be assumed to have administered hGH. When a liquid chromatography coupled mass spectrometry (LC–MS) method became a reality for the measurement of IGF‐I, more consistency of results was assured. Measurement of P‐III‐NP is still dependent on immunoassays although work is underway to develop an LC–MS method. The promised long‐term detection time for the biomarker assay does not appear to have been realised in practice, and this is perhaps partly the result of decision limits being set too high. Nevertheless, more robust assays are needed before a further adjustment of the decision limit is warranted. In the meantime, WADA is considering using P‐III‐NP and IGF‐I as components of a biomarker passport system recording data from an individual athlete, rather than the population. Using this approach, smaller perturbations in the growth hormone (GH) score would mandate an investigation and possible action for hGH administration.
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Affiliation(s)
- David A Cowan
- Department of Analytical, Environmental and Forensic Science, King's College London, London, UK
| | - Danielle A Moncrieffe
- Department of Analytical, Environmental and Forensic Science, King's College London, London, UK.,Drug Control Centre, Department of Analytical, Environmental and Forensic Science, King's College London, London, UK
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10
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Protti M, Sberna PM, Sberna AE, Ferrante R, Mandrioli R, Mercolini L. Enhanced urinary stability of peptide hormones and growth factors by dried urine microsampling. J Pharm Biomed Anal 2021; 204:114234. [PMID: 34246878 DOI: 10.1016/j.jpba.2021.114234] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2021] [Revised: 06/24/2021] [Accepted: 06/25/2021] [Indexed: 01/03/2023]
Abstract
Volumetric absorptive microsampling (VAMS) and dried urine spot (DUS) strategies were applied for the collection of dried microsamples for anti-doping testing of low-stability peptide hormones and growth factors prohibited by the World Anti-Doping Agency (WADA). Drying, storage and transport conditions, as well as pretreatment steps, were optimised before liquid chromatography - tandem mass spectrometry (LC-MS/MS) analysis. The analytical method has been fully validated in terms of sensitivity (limits of quantitation 0.3-10 ng/mL), precision (RSD% < 6.6 %) and extraction yields (78-91 %). Dried microsample stability studies (90 days) have been performed and compared to fluid urine stability. Significantly higher losses have been observed in fluid urine stored at -20 °C (up to 55 %) and -80 °C (up to 29 %) than in dried urine microsamples stored at room temperature (< 19 %). The final microsampling and analysis protocols allow the collection of urine microvolumes, unlikely to be tampered, stably storable and shippable with no particular precautions for possible anti-doping testing of prohibited peptides and hormones.
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Affiliation(s)
- Michele Protti
- Research Group of Pharmaco-Toxicological Analysis (PTA Lab), Department of Pharmacy and Biotechnology (FaBiT), Alma Mater Studiorum - University of Bologna, Via Belmeloro 6, 40126, Bologna, Italy
| | - Paolo M Sberna
- Electrical Engineering, Mathematics and Computer Science, Else Kooi Laboratory, Delft University of Technology, Feldmannweg 17, 2628 CT, Delft, the Netherlands
| | - Angelo E Sberna
- Italian National Olympic Committee (CONI), Sicily Region Committee, Via Dante Alighieri 9, 94100, Enna, Italy
| | - Renzo Ferrante
- Carabinieri Health Protection Command - NAS Firenze Unit, Via Paisiello 8, 50144, Firenze, Italy
| | - Roberto Mandrioli
- Department for Life Quality Studies (QuVi), Alma Mater Studiorum - University of Bologna, Corso d'Augusto 237, 47921, Rimini, Italy
| | - Laura Mercolini
- Research Group of Pharmaco-Toxicological Analysis (PTA Lab), Department of Pharmacy and Biotechnology (FaBiT), Alma Mater Studiorum - University of Bologna, Via Belmeloro 6, 40126, Bologna, Italy.
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11
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Haynes AZ, Levine M. Detection of Human Growth Hormone (hGH) via Cyclodextrin-Promoted Fluorescence Modulation. ANAL LETT 2020. [DOI: 10.1080/00032719.2020.1828445] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- Anna Z. Haynes
- Department of Chemistry, University of Rhode Island, Kingston, RI, USA
| | - Mindy Levine
- Department of Chemical Sciences, Ariel University, Ariel, Israel
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12
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Minhas RS, Rudd DA, Al Hmoud HZ, Guinan TM, Kirkbride KP, Voelcker NH. Rapid Detection of Anabolic and Narcotic Doping Agents in Saliva and Urine By Means of Nanostructured Silicon SALDI Mass Spectrometry. ACS APPLIED MATERIALS & INTERFACES 2020; 12:31195-31204. [PMID: 32551485 DOI: 10.1021/acsami.0c07849] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Novel doping agents and doping strategies are continually entering the market, placing a burden on analytical methods to detect, adapt, and respond to subtle changes in the composition of biological samples. Therefore, there is a growing interest in rapid, adaptable, and ideally confirmatory analytical methods for the fight against doping. Nanostructured silicon (nano-Si)-based surface-assisted laser desorption/ionization mass spectrometry (SALDI-MS) can effectively address this need, allowing fast and sensitive detection of prohibited compounds used in sport doping. Here, we demonstrate the detection of growth hormone peptides, anabolic-androgenic steroids, and narcotics at low concentrations directly from biological matrices. Molecular confirmation was performed using the fragmentation data of the structures, obtained with the tandem mass spectrometry capabilities of the SALDI instrument. The obtained data were in excellent agreement with those obtained using leading triple quadrupole liquid chromatography-mass spectrometry instruments. Furthermore, nano-Si SALDI-MS has the capacity for high-throughput analysis of hundreds of biological samples, providing opportunities for real-time MS analysis at sporting events.
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Affiliation(s)
- Rajpreet Singh Minhas
- Drug Delivery, Disposition and Dynamics, Monash University, Parkville, Victoria 3052, Australia
- Melbourne Centre for Nanofabrication, Victorian Node of the Australian National Fabrication Facility, Clayton, Victoria 3168, Australia
- Commonwealth Scientific and Industrial Research Organisation (CSIRO), Clayton, Victoria 3168, Australia
| | - David A Rudd
- Drug Delivery, Disposition and Dynamics, Monash University, Parkville, Victoria 3052, Australia
- Melbourne Centre for Nanofabrication, Victorian Node of the Australian National Fabrication Facility, Clayton, Victoria 3168, Australia
| | - Hashim Z Al Hmoud
- Drug Delivery, Disposition and Dynamics, Monash University, Parkville, Victoria 3052, Australia
- Melbourne Centre for Nanofabrication, Victorian Node of the Australian National Fabrication Facility, Clayton, Victoria 3168, Australia
| | - Taryn M Guinan
- Drug Delivery, Disposition and Dynamics, Monash University, Parkville, Victoria 3052, Australia
- Melbourne Centre for Nanofabrication, Victorian Node of the Australian National Fabrication Facility, Clayton, Victoria 3168, Australia
- Leica Microsystems, Mount Waverly, Victoria 3149, Australia
| | - K Paul Kirkbride
- School of Chemical and Physical Sciences, Flinders University, Bedford Park, Adelaide, South Australia 5001, Australia
| | - Nicolas H Voelcker
- Drug Delivery, Disposition and Dynamics, Monash University, Parkville, Victoria 3052, Australia
- Melbourne Centre for Nanofabrication, Victorian Node of the Australian National Fabrication Facility, Clayton, Victoria 3168, Australia
- Commonwealth Scientific and Industrial Research Organisation (CSIRO), Clayton, Victoria 3168, Australia
- Department of Materials Science and Engineering, Monash University, Clayton, Victoria 3800, Australia
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13
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Use of capillary dried blood for quantification of intact IGF-I by LC–HRMS for antidoping analysis. Bioanalysis 2020; 12:737-752. [DOI: 10.4155/bio-2020-0013] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Background: IGF-I is used as a biomarker to detect Growth Hormone doping in athletes’ blood samples. Objective: Our aim was to develop and validate a fast, high-throughput and accurate quantification of intact IGF-I from volumetric absorptive microsampling (VAMS) dried blood using LC coupled to high resolution mass spectrometry (LC–HRMS). Methodology & results: IGF-I was extracted from the VAMS, released from its binding proteins, concentrated using microelution SPE and analyzed by LC–HRMS. The method was successfully validated in accordance with the World Anti-Doping Agency's requirements. Subsequently, IGF-I measurements from capillary dried blood and serum were compared. Conclusion: The combination of VAMS, microelution SPE and LC–HRMS is a promising strategy applicable to IGF-I quantification in athletes’ samples.
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14
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Recent advances in high-sensitivity detection methods for paper-based lateral-flow assay. Biosens Bioelectron 2020; 152:112015. [PMID: 32056735 DOI: 10.1016/j.bios.2020.112015] [Citation(s) in RCA: 180] [Impact Index Per Article: 45.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2019] [Revised: 01/02/2020] [Accepted: 01/08/2020] [Indexed: 12/19/2022]
Abstract
Paper-based lateral-flow assays (LFAs) have achieved considerable commercial success and continue to have a significant impact on medical diagnostics and environmental monitoring. Conventional LFAs are typically performed by examining the color changes in the test bands by naked eye. However, for critical biochemical markers that are present in extremely small amounts in the clinical specimens, this readout method is not quantitative, and does not provide sufficient sensitivity or suitable detection limit for a reliable assay. Diverse technologies for high-sensitivity LFA detection have been developed and commercialization efforts are underway. In this review, we aim to provide a critical and objective overview of the recent progress in high-sensitivity LFA detection technologies, which involve the exploitation of the physical and chemical responses of transducing particles. The features and biomedical applications of the technologies, along with future prospects and challenges, are also discussed.
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15
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Yuen KCJ, Biller BMK, Radovick S, Carmichael JD, Jasim S, Pantalone KM, Hoffman AR. AMERICAN ASSOCIATION OF CLINICAL ENDOCRINOLOGISTS AND AMERICAN COLLEGE OF ENDOCRINOLOGY GUIDELINES FOR MANAGEMENT OF GROWTH HORMONE DEFICIENCY IN ADULTS AND PATIENTS TRANSITIONING FROM PEDIATRIC TO ADULT CARE. Endocr Pract 2019; 25:1191-1232. [PMID: 31760824 DOI: 10.4158/gl-2019-0405] [Citation(s) in RCA: 134] [Impact Index Per Article: 26.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Objective: The development of these guidelines is sponsored by the American Association of Clinical Endocrinologists (AACE) Board of Directors and American College of Endocrinology (ACE) Board of Trustees and adheres with published AACE protocols for the standardized production of clinical practice guidelines (CPG). Methods: Recommendations are based on diligent reviews of clinical evidence with transparent incorporation of subjective factors, according to established AACE/ACE guidelines for guidelines protocols. Results: The Executive Summary of this 2019 updated guideline contains 58 numbered recommendations: 12 are Grade A (21%), 19 are Grade B (33%), 21 are Grade C (36%), and 6 are Grade D (10%). These detailed, evidence-based recommendations allow for nuance-based clinical decision-making that addresses multiple aspects of real-world care of patients. The evidence base presented in the subsequent Appendix provides relevant supporting information for the Executive Summary recommendations. This update contains 357 citations of which 51 (14%) are evidence level (EL) 1 (strong), 168 (47%) are EL 2 (intermediate), 61 (17%) are EL 3 (weak), and 77 (22%) are EL 4 (no clinical evidence). Conclusion: This CPG is a practical tool that practicing endocrinologists and regulatory bodies can refer to regarding the identification, diagnosis, and treatment of adults and patients transitioning from pediatric to adult-care services with growth hormone deficiency (GHD). It provides guidelines on assessment, screening, diagnostic testing, and treatment recommendations for a range of individuals with various causes of adult GHD. The recommendations emphasize the importance of considering testing patients with a reasonable level of clinical suspicion of GHD using appropriate growth hormone (GH) cut-points for various GH-stimulation tests to accurately diagnose adult GHD, and to exercise caution interpreting serum GH and insulin-like growth factor-1 (IGF-1) levels, as various GH and IGF-1 assays are used to support treatment decisions. The intention to treat often requires sound clinical judgment and careful assessment of the benefits and risks specific to each individual patient. Unapproved uses of GH, long-term safety, and the current status of long-acting GH preparations are also discussed in this document. LAY ABSTRACT This updated guideline provides evidence-based recommendations regarding the identification, screening, assessment, diagnosis, and treatment for a range of individuals with various causes of adult growth-hormone deficiency (GHD) and patients with childhood-onset GHD transitioning to adult care. The update summarizes the most current knowledge about the accuracy of available GH-stimulation tests, safety of recombinant human GH (rhGH) replacement, unapproved uses of rhGH related to sports and aging, and new developments such as long-acting GH preparations that use a variety of technologies to prolong GH action. Recommendations offer a framework for physicians to manage patients with GHD effectively during transition to adult care and adulthood. Establishing a correct diagnosis is essential before consideration of replacement therapy with rhGH. Since the diagnosis of GHD in adults can be challenging, GH-stimulation tests are recommended based on individual patient circumstances and use of appropriate GH cut-points. Available GH-stimulation tests are discussed regarding variability, accuracy, reproducibility, safety, and contraindications, among other factors. The regimen for starting and maintaining rhGH treatment now uses individualized dose adjustments, which has improved effectiveness and reduced reported side effects, dependent on age, gender, body mass index, and various other individual characteristics. With careful dosing of rhGH replacement, many features of adult GHD are reversible and side effects of therapy can be minimized. Scientific studies have consistently shown rhGH therapy to be beneficial for adults with GHD, including improvements in body composition and quality of life, and have demonstrated the safety of short- and long-term rhGH replacement. Abbreviations: AACE = American Association of Clinical Endocrinologists; ACE = American College of Endocrinology; AHSG = alpha-2-HS-glycoprotein; AO-GHD = adult-onset growth hormone deficiency; ARG = arginine; BEL = best evidence level; BMD = bone mineral density; BMI = body mass index; CI = confidence interval; CO-GHD = childhood-onset growth hormone deficiency; CPG = clinical practice guideline; CRP = C-reactive protein; DM = diabetes mellitus; DXA = dual-energy X-ray absorptiometry; EL = evidence level; FDA = Food and Drug Administration; FD-GST = fixed-dose glucagon stimulation test; GeNeSIS = Genetics and Neuroendocrinology of Short Stature International Study; GH = growth hormone; GHD = growth hormone deficiency; GHRH = growth hormone-releasing hormone; GST = glucagon stimulation test; HDL = high-density lipoprotein; HypoCCS = Hypopituitary Control and Complications Study; IGF-1 = insulin-like growth factor-1; IGFBP = insulin-like growth factor-binding protein; IGHD = isolated growth hormone deficiency; ITT = insulin tolerance test; KIMS = Kabi International Metabolic Surveillance; LAGH = long-acting growth hormone; LDL = low-density lipoprotein; LIF = leukemia inhibitory factor; MPHD = multiple pituitary hormone deficiencies; MRI = magnetic resonance imaging; P-III-NP = procollagen type-III amino-terminal pro-peptide; PHD = pituitary hormone deficiencies; QoL = quality of life; rhGH = recombinant human growth hormone; ROC = receiver operating characteristic; RR = relative risk; SAH = subarachnoid hemorrhage; SDS = standard deviation score; SIR = standardized incidence ratio; SN = secondary neoplasms; T3 = triiodothyronine; TBI = traumatic brain injury; VDBP = vitamin D-binding protein; WADA = World Anti-Doping Agency; WB-GST = weight-based glucagon stimulation test.
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Khan TMA, Siddiqui AH, Ansari Y, Ansari SA, Siddiqui F. Sternoclavicular Joint Septic Arthritis and Anterior Mediastinal Mass in a Young Athlete: Possible Immune-modulatory Effect of Growth Hormone. Cureus 2019; 11:e6155. [PMID: 31890364 PMCID: PMC6913913 DOI: 10.7759/cureus.6155] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
Septic arthritis of sternoclavicular joint (SCJ) is a rare disease, however, not uncommon in patients who abuse intravenous drugs. It can present with a wide range of manifestations that can pose diagnostic challenges, which can result in a delay in diagnosis and treatment. Over the last few decades, there is a surge in the use of nonprescription recombinant human growth hormone (rhGH) by the young healthy population and athletes for its purported ergogenic effects. Furthermore, we lack quantitative information about the adverse effects of the chronic use of rhGH in a healthy population due to the scarcity of epidemiological data. We are reporting a case of a young male athlete who was chronically using the subcutaneous rhGH formulation to build lean body mass, and presented with septic arthritis of right SCJ due to methicillin-sensitive Staphylococcus aureus (MSSA) complicated by a necrotic inflammatory response involving the mediastinum which infiltrated the apical lung parenchyma. The clinical presentation masqueraded as the mediastinal mass raising the suspicion of mediastinal malignancy. Histological analysis of the tissue of SCJ and mediastinal area revealed no malignant cells but a lymphocyte-predominant inflammatory response with germinal centers was observed, which was an atypical response to MSSA bacterial infection. We have reviewed the literature to elucidate the immune-modulatory effect of rhGH, as the chronic use of rhGH by our patient probably has contributed to an atypical immune response to MSSA. The patient was treated with an extended duration of parenteral antibiotics and multiple incision and debridements to achieve complete resolution of infection over the next six months. This is a unique case of septic arthritis of right SCJ in a patient on chronic subcutaneous rhGH which masqueraded as a mediastinal mass raising concern of malignancy; moreover, it highlights the probable immune-modulatory role of rhGH which instigated an atypical immune response to MSSA infection.
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Affiliation(s)
| | - Abdul Hasan Siddiqui
- Pulmonary and Critical Care Medicine, Staten Island University Hospital / Northwell Health, Staten Island, USA
| | - Yusra Ansari
- Internal Medicine, Rawalpindi Medical College, Rawalpindi, PAK
| | - Saad Ali Ansari
- Internal Medicine, Pakistan Institute of Medical Sciences, Islamabad, PAK
| | - Faraz Siddiqui
- Pulmonary and Critical Care Medicine, Robert Packer Hospital, Sayre, USA
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17
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Husen M, Jäger M. [Doping in elite and popular sport : What orthopedic and trauma surgeons should know]. DER ORTHOPADE 2019; 48:711-724. [PMID: 31346643 DOI: 10.1007/s00132-019-03780-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
The spectacular doping raid during the Nordic World Ski Championships in Seefeld in winter this year is not the first time that illegal performance enhancement by taking drugs is in the spotlight of public interest. Kicked off by the so-called Festina scandal of the 1998 Tour de France, the serial exposure of further doping offences continues up to the present day. Less well-known to the general public is the high prevalence of doping under hobby and amateur athletes. Physicians are confronted by this group of patients in the practice much more frequently than by elite athletes, who are mostly treated in closed medical networks. The aim of the article is to provide an overview of the medical aspects including the most frequent substance classes and the current legal foundations of the anti-doping movement. Furthermore, the official definition of doping and the structure of the anti-doping agencies are presented.
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Affiliation(s)
- Martin Husen
- Zentrum für Orthopädie und Unfallchirurgie, Klinik für Unfall‑, Hand- und Wiederherstellungschirurgie, Universitätsklinik Essen, Universitätsmedizin Essen, Hufelandstr. 55, 45147, Essen, Deutschland.
| | - Marcus Jäger
- Zentrum für Orthopädie und Unfallchirurgie, Universitätsklinik für Orthopädie und Unfallchirurgie, Universität Duisburg-Essen, Universitätsmedizin Essen, Hufelandstr. 55, 45147, Essen, Deutschland
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18
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Holt RIG, Ho KKY. The Use and Abuse of Growth Hormone in Sports. Endocr Rev 2019; 40:1163-1185. [PMID: 31180479 DOI: 10.1210/er.2018-00265] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/08/2018] [Accepted: 02/27/2019] [Indexed: 12/18/2022]
Abstract
GH is banned by the World Anti-Doping Agency as a performance-enhancing anabolic agent. Doping with GH likely began in the early 1980s and became more prevalent with the advent of recombinant technology well before any scientific evidence of benefit. The expectation that GH improves physical function stems from its anabolic and lipolytic properties. Athletic performance depends on muscle strength and the energy required to power muscle function. In recreational athletes, GH selectively improves anaerobic sprint capacity but has not been proven to significantly enhance muscle strength, power, or maximum rate of oxygen consumption. GH is secreted as a family of isoform peptides in a pulsatile manner reflecting intermittent secretion and rapid clearance. Its anabolic actions are largely mediated by IGF-I, which stimulates whole-body protein synthesis, including skeletal muscle and collagen proteins. Two methods have been validated for detecting GH abuse in athletes. The first (the isoform method) is based on distinguishing pure recombinant 22-kDa GH from the heterogeneous isoforms secreted from the pituitary. The second (the marker method) is based on measuring blood levels of GH-responsive proteins, specifically IGF-I and the N-terminal propeptide of type III collagen (P-III-NP). Only a handful of athletes have been caught since the implementation of GH doping tests in 2004. The low rate likely reflects the limitation of in-competition testing using current methods. Improved detection rates may be achieved by more out-of-competition testing, introducing athletes' biological passports, and the development of novel methods. Governance, operational, technical, and political factors influence the effectiveness of an anti-doping program.
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Affiliation(s)
- Richard I G Holt
- Human Development and Health, Faculty of Medicine, University of Southampton, Southampton, United Kingdom
| | - Ken K Y Ho
- Garvan Institute of Medical Research, St. Vincent's Hospital, University of New South Wales, Sydney, New South Wales, Australia
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19
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Pricci F, Villa M, Maccari F, Agazio E, Rotondi D, Panei P, Roazzi P. The Italian Registry of GH Treatment: electronic Clinical Report Form (e-CRF) and web-based platform for the national database of GH prescriptions. J Endocrinol Invest 2019; 42:769-777. [PMID: 30443857 PMCID: PMC6581935 DOI: 10.1007/s40618-018-0980-3] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/06/2018] [Accepted: 11/08/2018] [Indexed: 11/27/2022]
Abstract
BACKGROUND In Italy, the utilization and the reimbursement of Growth Hormone (rGH) therapy by the National Health System (Servizio Sanitario Nazionale) are regulated by the "Note #39" included in the "Notes for the use of drugs" by the Italian Medicines Agency (AIFA), which are published in the Official Gazette, thus having the force of law. The "Note #39" establishes the diagnosis for which the reimbursement is granted and confirms the assignment of the national health surveillance on the use of GH therapy to the Italian National Institute of Health, requesting its computerization. AIM The aim of this work was to realize a dedicated electronic Clinical Report Form based on the mandatory data requested by the Note #39 and allowing the online reporting of the rGH prescriptions by the regional accredited centers. RESULTS AND CONCLUSIONS This interface is at the base of the national database of the Italian Registry of GH Treatment, which allows obtaining and managing correct and complete data to provide public health surveillance on GH therapy, both at national and local levels, necessary for policymakers decisions. In addition, this national database could be a useful instrument for improving knowledge about aspects of this treatment still under discussion.
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Affiliation(s)
- F. Pricci
- Department of Cardiovascular, Endocrine-Metabolic Diseases and Aging, Istituto Superiore di Sanità, Rome, Italy
| | - M. Villa
- Department of Cardiovascular, Endocrine-Metabolic Diseases and Aging, Istituto Superiore di Sanità, Rome, Italy
| | - F. Maccari
- Information Technology Service, Istituto Superiore di Sanità, Rome, Italy
| | - E. Agazio
- Department of Cardiovascular, Endocrine-Metabolic Diseases and Aging, Istituto Superiore di Sanità, Rome, Italy
| | - D. Rotondi
- Department of Cardiovascular, Endocrine-Metabolic Diseases and Aging, Istituto Superiore di Sanità, Rome, Italy
| | - P. Panei
- Grant Office and Technology Transfer, Istituto Superiore di Sanità, Rome, Italy
| | - P. Roazzi
- Health Technology Assessment, Istituto Superiore di Sanità, Rome, Italy
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20
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Affiliation(s)
- Shlomo Melmed
- From the Pituitary Center, Department of Medicine, Cedars-Sinai Medical Center, Los Angeles
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21
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Davani-Davari D, Karimzadeh I, Khalili H. The potential effects of anabolic-androgenic steroids and growth hormone as commonly used sport supplements on the kidney: a systematic review. BMC Nephrol 2019; 20:198. [PMID: 31151420 PMCID: PMC6545019 DOI: 10.1186/s12882-019-1384-0] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2019] [Accepted: 05/15/2019] [Indexed: 12/15/2022] Open
Abstract
BACKGROUND Anabolic-androgenic steroids and growth hormone are among the most commonly used supplements by sportsmen and sportswomen. The aim of this systematic review is to collect and report available data about renal safety of anabolic-androgenic steroids and growth hormone (GH). METHODS The search strategy was in accordance with the PRISMA guideline. Seven databases such as Scopus, Medline, Embase, and ISI Web of Knowledge were searched using keywords, such as "growth hormone", "anabolic-androgenic steroids", and "kidney injury". Articles published from 1950 to December 2017 were considered. Randomized clinical trials, prospective or retrospective human studies, case series as well as case reports, and experimental (in vivo) studies were included. Twenty one clinical and experimental articles were selected (12 for anabolic-androgenic steroids and 9 for GH). RESULTS Anabolic-androgenic steroids can affect the kidney in different aspects. They can induce or aggravate acute kidney injury, chronic kidney disease, and glomerular toxicity. These adverse effects are mediated through pathways such as stimulating renin-angiotensin-aldosterone system, enhancing the production of endothelin, producing reactive oxygen species, over-expression of pro-fibrotic and pro-apoptotic mediators (e.g., TGF-β1), as well as inflammatory cytokines (e.g., TNF-α, IL-1b, and IL-6). Although GH may affect the kidney in different aspects, such as size, glomerular filtration rate, and tubule functions, either directly or indirectly, there is no conclusive clinical evidence about its detrimental effects on the kidney in athletes and body builders. CONCLUSION Evidence regarding effects of anabolic-androgenic steroids exists; However, GH's exact effect on the kidney at doses used by athletes and body builders has not yet been clarified. Cohort clinical studies with long-term follow-up are warranted in this regard.
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Affiliation(s)
- Dorna Davani-Davari
- Department of Clinical Pharmacy, Faculty of Pharmacy, Shiraz University of Medical Sciences, Karafarin street, P O Box: 7146864685, Shiraz, Iran
| | - Iman Karimzadeh
- Department of Clinical Pharmacy, Faculty of Pharmacy, Shiraz University of Medical Sciences, Karafarin street, P O Box: 7146864685, Shiraz, Iran
| | - Hossein Khalili
- Department of Clinical Pharmacy, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran
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22
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Aguiar-Oliveira MH, Bartke A. Growth Hormone Deficiency: Health and Longevity. Endocr Rev 2019; 40:575-601. [PMID: 30576428 PMCID: PMC6416709 DOI: 10.1210/er.2018-00216] [Citation(s) in RCA: 98] [Impact Index Per Article: 19.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/15/2018] [Accepted: 12/07/2018] [Indexed: 12/13/2022]
Abstract
The important role of GH in the control of mammalian longevity was first deduced from extended longevity of mice with genetic GH deficiency (GHD) or GH resistance. Mice with isolated GHD (IGHD) due to GHRH or GHRH receptor mutations, combined deficiency of GH, prolactin, and TSH, or global deletion of GH receptors live longer than do their normal siblings. They also exhibit multiple features of delayed and/or slower aging, accompanied by extension of healthspan. The unexpected, remarkable longevity benefit of severe endocrine defects in these animals presumably represents evolutionarily conserved trade-offs among aging, growth, maturation, fecundity, and the underlying anabolic processes. Importantly, the negative association of GH signaling with longevity extends to other mammalian species, apparently including humans. Data obtained in humans with IGHD type 1B, owing to a mutation of the GHRH receptor gene, in the Itabaianinha County, Brazil, provide a unique opportunity to study the impact of severe reduction in GH signaling on age-related characteristics, health, and functionality. Individuals with IGHD are characterized by proportional short stature, doll facies, high-pitched voices, and central obesity. They have delayed puberty but are fertile and generally healthy. Moreover, these IGHD individuals are partially protected from cancer and some of the common effects of aging and can attain extreme longevity, 103 years of age in one case. We think that low, but detectable, residual GH secretion combined with life-long reduction of circulating IGF-1 and with some tissue levels of IGF-1 and/or IGF-2 preserved may account for the normal longevity and apparent extension of healthspan in these individuals.
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Affiliation(s)
| | - Andrzej Bartke
- Department of Internal Medicine, Southern Illinois University School of Medicine, Springfield, Illinois
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23
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Rigamonti AE, Haenelt M, Bidlingmaier M, De Col A, Tamini S, Tringali G, De Micheli R, Abbruzzese L, Goncalves da Cruz CR, Bernardo-Filho M, Cella SG, Sartorio A. Obese adolescents exhibit a constant ratio of GH isoforms after whole body vibration and maximal voluntary contractions. BMC Endocr Disord 2018; 18:96. [PMID: 30587244 PMCID: PMC6307112 DOI: 10.1186/s12902-018-0323-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/02/2018] [Accepted: 12/04/2018] [Indexed: 12/01/2022] Open
Abstract
BACKGROUND Growth hormone (GH) is a heterogeneous protein composed of several molecular isoforms, the most abundant ones being the 22 kDa- and 20 kDa-GH. Exercise-induced secretion of GH isoforms has been extensively investigated in normal-weight individuals due to antidoping purposes, particularly recombinant human GH (rhGH) abuse. On the other hand, the evaluation of exercise-induced responses in GH isoforms has never been performed in obese subjects. METHODS The acute effects of whole body vibration (WBV) or maximal voluntary contraction (MVC) alone and the combination of MVC with WBV (MVC + WBV) on circulating levels of 22 kDa- and 20 kDa-GH were evaluated in 8 obese male adolescents [mean age ± SD: 17.1 ± 3.3 yrs.; weight: 107.4 ± 17.8 kg; body mass index (BMI): 36.5 ± 6.6 kg/m2; BMI standard deviation score (SDS): 3.1 ± 0.6]. RESULTS MVC (alone or combined with WBV) significantly stimulated 22 kDa- and 20 kDa-GH secretion, while WBV alone was ineffective. In particular, 22 kDa- and 20 kDa-GH peaks were significantly higher after MVC + WBV and MVC than WBV. In addition, 22 kDa-GH (but not 20 kDa-GH) peak was significantly higher after MVC + WBV than MVC. Importantly, the ratio of circulating levels of 22 kDa- to 20 kDa-GH was constant throughout the time window of evaluation after exercise and similar among the three different protocols of exercise. CONCLUSIONS The results of the present study confirm the ability of MVC, alone and in combination with WBV, to stimulate both 22 kDa- and 20 kDa-GH secretion in obese patients, these responses being related to the exercise workload. Since the ratio of 22 kDa- to 20 kDa-GH is constant after exercise and independent from the protocols of exercise as in normal-weight subjects, hyposomatotropism in obesity does not seem to depend on an unbalance of circulating GH isoforms. Since the present study was carried out in a small cohort of obese sedentary adolescents, these preliminary results should be confirmed in further future studies enrolling overweight/obese subjects with a wider age range.
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Affiliation(s)
- A. E. Rigamonti
- Department of Clinical Sciences and Community Health, University of Milan, Milan, Italy
| | - M. Haenelt
- Endocrine Research Laboratories, Medizinische Klinik und Poliklinik IV, Klinikum der Universität München, Munich, Germany
| | - M. Bidlingmaier
- Endocrine Research Laboratories, Medizinische Klinik und Poliklinik IV, Klinikum der Universität München, Munich, Germany
| | - A. De Col
- Istituto Auxologico Italiano, IRCCS, Experimental Laboratory for Auxo-endocrinological Research, Milan and Verbania, Italy
| | - S. Tamini
- Istituto Auxologico Italiano, IRCCS, Experimental Laboratory for Auxo-endocrinological Research, Milan and Verbania, Italy
| | - G. Tringali
- Istituto Auxologico Italiano, IRCCS, Experimental Laboratory for Auxo-endocrinological Research, Milan and Verbania, Italy
| | - R. De Micheli
- Istituto Auxologico Italiano, IRCCS, Experimental Laboratory for Auxo-endocrinological Research, Milan and Verbania, Italy
| | - L. Abbruzzese
- Istituto Auxologico Italiano, IRCCS, Experimental Laboratory for Auxo-endocrinological Research, Milan and Verbania, Italy
- Istituto Auxologico Italiano, IRCCS, Division of Auxology and Metabolic Diseases, Verbania, Italy
| | - C. R. Goncalves da Cruz
- Departamento de Biofisica e Biometria, Laboratório de Vibrações Mecânicas e Praticas Integrativas, Instituto de Biologia Roberto Alcantara Gomes, Universidade do Estado do Rio de Janeiro, Rio de Janeiro, Brazil
- Programa de Pós-Graduação em Ciências Médicas, Faculdade de Ciências Médicas, Universidade do Estado do Rio de Janeiro, Rio de Janeiro, Brazil
| | - M. Bernardo-Filho
- Departamento de Biofisica e Biometria, Laboratório de Vibrações Mecânicas e Praticas Integrativas, Instituto de Biologia Roberto Alcantara Gomes, Universidade do Estado do Rio de Janeiro, Rio de Janeiro, Brazil
| | - S. G. Cella
- Department of Clinical Sciences and Community Health, University of Milan, Milan, Italy
| | - A. Sartorio
- Istituto Auxologico Italiano, IRCCS, Experimental Laboratory for Auxo-endocrinological Research, Milan and Verbania, Italy
- Istituto Auxologico Italiano, IRCCS, Division of Auxology and Metabolic Diseases, Verbania, Italy
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Gajda PM, Holm NB, Hoej LJ, Rasmussen BS, Dalsgaard PW, Reitzel LA, Linnet K. Glycine-modified growth hormone secretagogues identified in seized doping material. Drug Test Anal 2018; 11:350-354. [DOI: 10.1002/dta.2489] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2018] [Revised: 08/14/2018] [Accepted: 08/14/2018] [Indexed: 12/28/2022]
Affiliation(s)
- Paulina Marta Gajda
- Section of Forensic Chemistry, Department of Forensic Medicine, Faculty of Health and Medical Sciences; University of Copenhagen; Denmark
| | - Niels Bjerre Holm
- Section of Forensic Chemistry, Department of Forensic Medicine, Faculty of Health and Medical Sciences; University of Copenhagen; Denmark
| | - Lars Jakobsen Hoej
- Section of Forensic Chemistry, Department of Forensic Medicine, Faculty of Health and Medical Sciences; University of Copenhagen; Denmark
| | - Brian Schou Rasmussen
- Section of Forensic Chemistry, Department of Forensic Medicine, Faculty of Health and Medical Sciences; University of Copenhagen; Denmark
| | - Petur Weihe Dalsgaard
- Section of Forensic Chemistry, Department of Forensic Medicine, Faculty of Health and Medical Sciences; University of Copenhagen; Denmark
| | - Lotte Ask Reitzel
- Section of Forensic Chemistry, Department of Forensic Medicine, Faculty of Health and Medical Sciences; University of Copenhagen; Denmark
| | - Kristian Linnet
- Section of Forensic Chemistry, Department of Forensic Medicine, Faculty of Health and Medical Sciences; University of Copenhagen; Denmark
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Ribeiro de Oliveira Longo Schweizer J, Ribeiro-Oliveira A, Bidlingmaier M. Growth hormone: isoforms, clinical aspects and assays interference. Clin Diabetes Endocrinol 2018; 4:18. [PMID: 30181896 PMCID: PMC6114276 DOI: 10.1186/s40842-018-0068-1] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/01/2018] [Accepted: 08/19/2018] [Indexed: 11/11/2022] Open
Abstract
The measurement of circulating concentrations of growth hormone (GH) is an indispensable tool in the diagnosis of both GH deficiency and GH excess. GH is a heterogeneous protein composed of several molecular isoforms, but the physiological role of these different isoforms has not yet been fully understood. The 22KD GH (22 K-GH) is the main isoform in circulation, followed by 20KD GH (20 K-GH) and other rare isoforms. Studies have been performed to better understand the biological actions of the different isoforms as well as their importance in pathological conditions. Generally, the non-22 K- and 20 K-GH isoforms are secreted in parallel to 22 K-GH, and only very moderate changes in the ratio between isoforms have been described in some pituitary tumors or during exercise. Therefore, in a diagnostic approach, concentrations of 22 K-GH accurately reflect total GH secretion. On the other hand, the differential recognition of GH isoforms by different GH immunoassays used in clinical routine contributes to the known discrepancy in results from different GH assays. This makes the application of uniform decision limits problematic. Therefore, the worldwide efforts to standardize GH assays include the recommendation to use 22 K-GH specific GH assays calibrated against the pure 22 K-GH reference preparation 98/574. Adoption of this recommendation might lead to improvement in diagnosis and follow-up of pathological conditions, and facilitate the comparison of results from different laboratories.
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Affiliation(s)
| | - Antônio Ribeiro-Oliveira
- 1Endocrinology Laboratory of Federal University of Minas Gerais. Alfredo Balena, 190, Santa Efigênia, Belo Horizonte, 30130-100 Brazil
| | - Martin Bidlingmaier
- 2Endocrine Laboratory, Medizinische Klinik und Poliklinik IV, Klinikum der Universität München, Ziemssenstraße 1, 80336 Munich, Germany
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26
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Cevenini A, Orrù S, Mancini A, Alfieri A, Buono P, Imperlini E. Molecular Signatures of the Insulin-like Growth Factor 1-mediated Epithelial-Mesenchymal Transition in Breast, Lung and Gastric Cancers. Int J Mol Sci 2018; 19:ijms19082411. [PMID: 30111747 PMCID: PMC6122069 DOI: 10.3390/ijms19082411] [Citation(s) in RCA: 60] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2018] [Revised: 08/13/2018] [Accepted: 08/14/2018] [Indexed: 02/07/2023] Open
Abstract
The insulin-like growth factor (IGF) system, which is constituted by the IGF-1 and IGF-2 peptide hormones, their corresponding receptors and several IGF binding proteins, is involved in physiological and pathophysiological processes. The IGF system promotes cancer proliferation/survival and its signaling induces the epithelial-mesenchymal transition (EMT) phenotype, which contributes to the migration, invasiveness, and metastasis of epithelial tumors. These cancers share two major IGF-1R signaling transduction pathways, PI3K/AKT and RAS/MEK/ERK. However, as far as we could review at this time, each type of cancer cell undergoes EMT through tumor-specific routes. Here, we review the tumor-specific molecular signatures of IGF-1-mediated EMT in breast, lung, and gastric cancers.
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Affiliation(s)
- Armando Cevenini
- Dipartimento di Medicina Molecolare e Biotecnologie Mediche, Università degli Studi di Napoli "Federico II", Via S. Pansini 5, 80131 Napoli, Italy.
- CEINGE-Biotecnologie Avanzate S.c.a r.l., Via G. Salvatore 486, 80145 Napoli, Italy.
| | - Stefania Orrù
- Dipartimento di Scienze Motorie e del Benessere, Università degli Studi di Napoli "Parthenope", Via Medina 40, 80133 Napoli, Italy.
- IRCCS SDN, Via Francesco Crispi 8, 80121 Napoli, Italy.
| | - Annamaria Mancini
- CEINGE-Biotecnologie Avanzate S.c.a r.l., Via G. Salvatore 486, 80145 Napoli, Italy.
- Dipartimento di Scienze Motorie e del Benessere, Università degli Studi di Napoli "Parthenope", Via Medina 40, 80133 Napoli, Italy.
| | - Andreina Alfieri
- CEINGE-Biotecnologie Avanzate S.c.a r.l., Via G. Salvatore 486, 80145 Napoli, Italy.
- Dipartimento di Scienze Motorie e del Benessere, Università degli Studi di Napoli "Parthenope", Via Medina 40, 80133 Napoli, Italy.
| | - Pasqualina Buono
- Dipartimento di Scienze Motorie e del Benessere, Università degli Studi di Napoli "Parthenope", Via Medina 40, 80133 Napoli, Italy.
- IRCCS SDN, Via Francesco Crispi 8, 80121 Napoli, Italy.
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Abstract
CONTEXT Recombinant human growth hormone (rHGH) has become a target of abuse in the sporting world. Conversely, sports medicine clinicians may encounter athletes using rHGH to achieve normalcy in the context of growth hormone (GH) deficiency. EVIDENCE ACQUISITION Medline and PubMed databases were queried using the following keywords: GH, GH physiology, GH deficiency, acromegaly, GH athlete, GH sports, GH athletic performance, and GH deficiency concussion. Articles focusing on GH physiology, deficiency, excess, and its effects in both deficient and healthy patients were included. STUDY DESIGN Clinical review. LEVEL OF EVIDENCE Level 3. RESULTS GH is a naturally occurring hormone with important roles in human physiology. Patients with GH deficiency (GHD) present variably, and GHD has numerous etiologies. rHGH treatment has substantial therapeutic benefits for patients with GHD. The benefits of rHGH treatment in otherwise-healthy adults are uncertain. GH excess may cause health problems such as acromegaly. Professional, collegiate, and international sports leagues and associations have banned rHGH use to maintain athlete health, safety, and fair play. Athletes misusing GH may face prolonged suspensions from competition. Implementing GH abuse testing is challenging, but new methods, such as the biomarker testing procedure, are being finalized. CONCLUSION rHGH is not only an important therapeutic agent for GH-deficient patients but also a target of abuse in competitive athletics. Its benefits in a healthy, adult population are uncertain. A safe exercise and competition plan, developed with a physician knowledgeable of GH use, physiology, and abuse potential, should be of benefit to a longitudinal clinician-patient relationship.
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Affiliation(s)
- David M Siebert
- Department of Family Medicine, Sports Medicine Section, University of Washington, Seattle, Washington
| | - Ashwin L Rao
- Department of Family Medicine, Sports Medicine Section, University of Washington, Seattle, Washington
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Anderson LJ, Tamayose JM, Garcia JM. Use of growth hormone, IGF-I, and insulin for anabolic purpose: Pharmacological basis, methods of detection, and adverse effects. Mol Cell Endocrinol 2018; 464:65-74. [PMID: 28606865 PMCID: PMC5723243 DOI: 10.1016/j.mce.2017.06.010] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/13/2017] [Revised: 06/02/2017] [Accepted: 06/08/2017] [Indexed: 12/24/2022]
Abstract
Hormones with anabolic properties such as growth hormone (GH), insulin-like growth factor-1 (IGF-I), and insulin are commonly abused among professional and recreational athletes to enhance physical ability. Performance enhancing drugs (PEDs) such as these are also commonly used by recreational athletes to improve body aesthetics. The perception of increased muscle mass due to supraphysiologic hormone supplementation, or doping, is widespread among PED users despite a paucity of evidence-based data in humans. Even still, athletes will continue to abuse PEDs in hopes of replicating anecdotal results. It is important to educate the general public and potential treating physicians of the risks of PED use, including the dangers of polypharmacy and substance dependence. It will also be important for the research community to address the common challenges associated with studying PED use such as the ethical considerations of PED administration, the general reticence of the PED-using community to volunteer information, and the constant need to improve or create new detection methods as athletes continually attempt to circumvent current methods. This review highlights the anabolic mechanisms and suggestive data implicating GH, IGF-I, and insulin for use as PEDs, the specific detection methods with cutoff ranges that may be utilized to diagnose abuse of each substance, and their respective side effects.
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Affiliation(s)
- Lindsey J Anderson
- Geriatric Research, Education and Clinical Center (GRECC), VA Puget Sound Health Care System, Seattle, WA, United States
| | - Jamie M Tamayose
- Geriatric Research, Education and Clinical Center (GRECC), VA Puget Sound Health Care System, Seattle, WA, United States
| | - Jose M Garcia
- Geriatric Research, Education and Clinical Center (GRECC), VA Puget Sound Health Care System, Seattle, WA, United States; Department of Medicine, Division of Gerontology & Geriatric Medicine, University of Washington School of Medicine, Seattle, WA, United States.
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29
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Arsene C, Schulze D, Röthke A, Thevis M, Henrion A. Growth hormone isoform-differential mass spectrometry for doping control purposes. Drug Test Anal 2018; 10:938-946. [DOI: 10.1002/dta.2350] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2017] [Revised: 11/20/2017] [Accepted: 12/05/2017] [Indexed: 12/27/2022]
Affiliation(s)
- Cristian Arsene
- Physikalisch-Technische Bundesanstalt (PTB); Braunschweig Germany
| | - Dirk Schulze
- Physikalisch-Technische Bundesanstalt (PTB); Braunschweig Germany
| | - Anita Röthke
- Physikalisch-Technische Bundesanstalt (PTB); Braunschweig Germany
| | - Mario Thevis
- Zentrum für Präventive Dopingforschung - Institut für Biochemie; Deutsche Sporthochschule Köln; Germany
| | - André Henrion
- Physikalisch-Technische Bundesanstalt (PTB); Braunschweig Germany
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30
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Bonert V, Carmichael J, Wu Z, Mirocha J, Perez DA, Clarke NJ, Reitz RE, McPhaul MJ, Mamelak A. Discordance between mass spectrometry and immunometric IGF-1 assay in pituitary disease: a prospective study. Pituitary 2018; 21:65-75. [PMID: 29218459 DOI: 10.1007/s11102-017-0849-z] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
PURPOSE Measuring IGF-1, a biomarker for GH activity, is critical to evaluating disordered hypothalamic-pituitary GH axis. Inconsistent IGF-1 measurements among different immunoassays are well documented. We switched from Immulite 2000 immunoassay to narrow-mass-extraction, high-resolution liquid chromatography mass-spectrometry (LC-MS) compliant with recent consensus recommendations on assay standardization. Comparability of these two assays in patients with pituitary disease in a clinical practice setting is not known. We sought to compare IGF-1 levels on Immulite 2000 and LC-MS in samples from naïve and treated patients with secretory and non-secretory pituitary masses. METHODS We prospectively collected serum samples from 101 patients treated at the Cedars-Sinai Pituitary Center between February 2012 and March 2014. We intentionally recruited more patients with acromegaly or GH deficiency to ensure a clinically representative cohort. Samples were classified as in or out of the respective reference ranges. Bland-Altman analysis was used to assess agreement between assays. RESULTS Twenty-four percent of samples were classified differently as below, in, or above range. Agreement between the assays was poor overall, with a significant bias for immunoassay reporting higher values than LC-MS. This pattern was also observed in patients with acromegaly and those with ≥ 2 pituitary hormone deficiencies. CONCLUSIONS IGF-1 results may differ after switching from an older immunoassay to a consensus-compliant assay such as LC-MS. Clinicians should consider the potential impact of assay switching before altering treatment due to discrepant results, particularly in patients monitored over time, such as those with acromegaly and GH deficiency.
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Affiliation(s)
- Vivien Bonert
- Pituitary Center, Department of Medicine, Cedars-Sinai Medical Center, 127 S. San Vicente Blvd., Advanced Health Sciences Pavilion, Sixth Floor, A6600, Los Angeles, CA, 90048, USA.
| | - John Carmichael
- Pituitary Center, Department of Medicine, Cedars-Sinai Medical Center, 127 S. San Vicente Blvd., Advanced Health Sciences Pavilion, Sixth Floor, A6600, Los Angeles, CA, 90048, USA
| | - Zengru Wu
- Quest Diagnostics, Inc., San Juan Capistrano, CA, 92675, USA
| | - James Mirocha
- Pituitary Center, Department of Medicine, Cedars-Sinai Medical Center, 127 S. San Vicente Blvd., Advanced Health Sciences Pavilion, Sixth Floor, A6600, Los Angeles, CA, 90048, USA
| | - Daniel A Perez
- Pituitary Center, Department of Medicine, Cedars-Sinai Medical Center, 127 S. San Vicente Blvd., Advanced Health Sciences Pavilion, Sixth Floor, A6600, Los Angeles, CA, 90048, USA
| | - Nigel J Clarke
- Quest Diagnostics, Inc., San Juan Capistrano, CA, 92675, USA
| | - Richard E Reitz
- Quest Diagnostics, Inc., San Juan Capistrano, CA, 92675, USA
| | | | - Adam Mamelak
- Pituitary Center, Department of Medicine, Cedars-Sinai Medical Center, 127 S. San Vicente Blvd., Advanced Health Sciences Pavilion, Sixth Floor, A6600, Los Angeles, CA, 90048, USA
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31
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Orrù S, Nigro E, Mandola A, Alfieri A, Buono P, Daniele A, Mancini A, Imperlini E. A Functional Interplay between IGF-1 and Adiponectin. Int J Mol Sci 2017; 18:E2145. [PMID: 29036907 PMCID: PMC5666827 DOI: 10.3390/ijms18102145] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2017] [Revised: 10/02/2017] [Accepted: 10/09/2017] [Indexed: 02/07/2023] Open
Abstract
A functional relationship is suggested between two well-known protein hormones, insulin-like growth factor 1 (IGF-1) and adiponectin. In the last two decades in fact, different experimental evidence has indicated a non-random link between them. Here, we describe briefly the IGF-1 and adiponectin systems, and we then focus on their putative interplay in relation to several pathological conditions, including obesity, diabetes, insulin resistance, cardiovascular disease, and cancer. Although the existing studies are hardly comparable, they definitely indicate a functional connection between these two protein hormones. In conclusion, the current knowledge strongly encourages further research into the common, as well as novel, mechanisms through which IGF-1 and adiponectin exert their concerted action.
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Affiliation(s)
- Stefania Orrù
- Dipartimento di Scienze Motorie e del Benessere, Università degli Studi di Napoli "Parthenope", via Medina 40, 80133 Napoli, Italy.
- IRCCS SDN, via E. Gianturco 113, 80142 Napoli, Italy.
| | - Ersilia Nigro
- CEINGE-Biotecnologie Avanzate S.c.a r.l., Via G. Salvatore 486, 80145 Napoli, Italy.
- Dipartimento di Medicina e di Scienze della Salute "Vincenzo Tiberio" Università degli Studi del Molise, Campobasso, Italy.
| | - Annalisa Mandola
- Dipartimento di Scienze Motorie e del Benessere, Università degli Studi di Napoli "Parthenope", via Medina 40, 80133 Napoli, Italy.
- CEINGE-Biotecnologie Avanzate S.c.a r.l., Via G. Salvatore 486, 80145 Napoli, Italy.
| | - Andreina Alfieri
- Dipartimento di Scienze Motorie e del Benessere, Università degli Studi di Napoli "Parthenope", via Medina 40, 80133 Napoli, Italy.
- CEINGE-Biotecnologie Avanzate S.c.a r.l., Via G. Salvatore 486, 80145 Napoli, Italy.
| | - Pasqualina Buono
- Dipartimento di Scienze Motorie e del Benessere, Università degli Studi di Napoli "Parthenope", via Medina 40, 80133 Napoli, Italy.
- IRCCS SDN, via E. Gianturco 113, 80142 Napoli, Italy.
| | - Aurora Daniele
- CEINGE-Biotecnologie Avanzate S.c.a r.l., Via G. Salvatore 486, 80145 Napoli, Italy.
- Dipartimento di Scienze e Tecnologie Ambientali Biologiche Farmaceutiche, Università della Campania "Luigi Vanvitelli", Via G. Vivaldi 42, 81100 Caserta, Italy.
| | - Annamaria Mancini
- Dipartimento di Scienze Motorie e del Benessere, Università degli Studi di Napoli "Parthenope", via Medina 40, 80133 Napoli, Italy.
- CEINGE-Biotecnologie Avanzate S.c.a r.l., Via G. Salvatore 486, 80145 Napoli, Italy.
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32
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Determination of doping peptides via solid-phase microelution and accurate-mass quadrupole time-of-flight LC–MS. J Chromatogr B Analyt Technol Biomed Life Sci 2017; 1065-1066:134-144. [DOI: 10.1016/j.jchromb.2017.08.044] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2017] [Revised: 08/03/2017] [Accepted: 08/31/2017] [Indexed: 12/29/2022]
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33
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Plasma biomarker proteins for detection of human growth hormone administration in athletes. Sci Rep 2017; 7:10039. [PMID: 28855568 PMCID: PMC5577294 DOI: 10.1038/s41598-017-09968-7] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2016] [Accepted: 07/31/2017] [Indexed: 11/09/2022] Open
Abstract
Human growth hormone (GH) is a naturally occurring hormone secreted by the pituitary gland with anabolic and growth-promoting activities. Since an increased availability of recombinant GH (rGH) for the treatment of GH-deficient patients, GH has been abused in sports and it is prohibited. "GH-isoform" and "biomarkers" tests are currently available for detection of GH abuse in sports, however both methods suffer from shortcomings. Here, we report on a proteomic approach to search for novel protein biomarkers associated with rGH administration in non-elite athletes. In this study, participants received either placebo or rGH for 8 weeks, and were followed over a 6-week washout period. We used 2-D DIGE and iTRAQ LC-MS/MS analyses to expose rGH-dependent marker proteins. Eight rGH-dependent plasma proteins namely apolipoproptein-L1, alpha-HS-glycoprotein, vitamin D-binding protein, afamin, insulin-like growth factor-binding protein-3, insulin-like growth factor-binding protein-ALS, lumican and extracellular matrix proteins 1 were identified. Apolipoprotein L1 and alpha-HS-glycoprotein were validated by Western blots to confirm their identities and expression patterns in rGH- and placebo-treated subject cohorts. Independent confirmation of these putative GH-responsive biomarkers would be of value for clinical practices and may have sports anti-doping utility.
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Abucham J, Bronstein MD, Dias ML. MANAGEMENT OF ENDOCRINE DISEASE: Acromegaly and pregnancy: a contemporary review. Eur J Endocrinol 2017; 177:R1-R12. [PMID: 28292926 DOI: 10.1530/eje-16-1059] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/23/2016] [Revised: 02/24/2017] [Accepted: 03/09/2017] [Indexed: 12/16/2022]
Abstract
Although fertility is frequently impaired in women with acromegaly, pregnancy is apparently becoming more common due to improvement in acromegaly treatment as well as in fertility therapy. As a result, several studies on pregnancy in patients with acromegaly have been published in recent years adding new and relevant information to the preexisting literature. Also, new GH assays with selective specificities and the knowledge of the expression of the various GH genes have allowed a better understanding of somatotrophic axis function during pregnancy. In this review, we show that pregnancy in women with acromegaly is generally safe, usually with tumoral and hormonal stability. Although the paucity of data limits evidence-based recommendations for preconception counseling and pregnancy surveillance, controlling tumor size and hormonal activity before pregnancy is highly recommended to ensure better outcomes, and surgical control should be attempted when feasible. Treatment interruption at pregnancy confirmation has also proven to be safe, as drugs are not formally allowed to be used during pregnancy. Drug exposure (somatostatin analogs) during early or whole pregnancy might increase the chance of a lower birth weight. Aggressive disease is uncommon and may urge individual decisions such as surgery or drug treatment during pregnancy or lactation.
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Affiliation(s)
- Julio Abucham
- Neuroendocrinology UnitEscola Paulista de Medicina da Universidade Federal de São Paulo, São Paulo, Brazil
| | - Marcello D Bronstein
- Division of Endocrinology and MetabolismNeuroendocrinology Unit, University of São Paulo, São Paulo, Brazil
| | - Monike L Dias
- Endocrinology UnitUniversidade Federal de Goiás, Goiânia, Brazil
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35
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Miočević O, Cole CR, Laughlin MJ, Buck RL, Slowey PD, Shirtcliff EA. Quantitative Lateral Flow Assays for Salivary Biomarker Assessment: A Review. Front Public Health 2017; 5:133. [PMID: 28660183 PMCID: PMC5469882 DOI: 10.3389/fpubh.2017.00133] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2016] [Accepted: 05/22/2017] [Indexed: 12/17/2022] Open
Abstract
Saliva is an emerging biofluid with a significant number of applications in use across research and clinical settings. The present paper explores the reasons why saliva has grown in popularity in recent years, balancing both the potential strengths and weaknesses of this biofluid. Focusing on reasons why saliva is different from other common biological fluids such as blood, urine, or tears, we review how saliva is easily obtained, with minimal risk to the donor, and reduced costs for collection, transportation, and analysis. We then move on to a brief review of the history and progress in rapid salivary testing, again reviewing the strengths and weaknesses of rapid immunoassays (e.g., lateral flow immunoassay) compared to more traditional immunoassays. We consider the potential for saliva as an alternative biofluid in a setting where rapid results are important. We focus the review on salivary tests for small molecule biomarkers using cortisol as an example. Such salivary tests can be applied readily in a variety of settings and for specific measurement purposes, providing researchers and clinicians with opportunities to assess biomarkers in real time with lower transportation, collection, and analysis costs, faster turnaround time, and minimal training requirements. We conclude with a note of cautious optimism that the field will soon gain the ability to collect and analyze salivary specimens at any location and return viable results within minutes.
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Affiliation(s)
| | - Craig R. Cole
- Oasis Diagnostics Corporation, Vancouver, WA, United States
| | | | - Robert L. Buck
- Oasis Diagnostics Corporation, Vancouver, WA, United States
| | - Paul D. Slowey
- Oasis Diagnostics Corporation, Vancouver, WA, United States
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36
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Simultaneous detection of recombinant growth hormones in equine plasma by liquid chromatography/high-resolution tandem mass spectrometry for doping control. J Chromatogr A 2016; 1478:35-42. [DOI: 10.1016/j.chroma.2016.11.032] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2016] [Revised: 10/23/2016] [Accepted: 11/20/2016] [Indexed: 11/21/2022]
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Abstract
Despite inconclusive efficacy data and concerning safety data, the use of performance-enhancing drugs (PEDs) in the adolescent population is on the rise. Anabolic-androgenic steroids, growth hormones, stimulants, and erythropoiesis-stimulating agents are among the most widely known and studied prescription PEDs in the adolescent population. The purpose of this article is to describe the proposed mechanism of action, efficacy and adverse effects of these agents as well as discuss prevention measures and treatment considerations for those patients at risk for, considering, or currently using PEDs.
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Affiliation(s)
- Nicole D White
- School of Pharmacy and Health Professions, Creighton University, Omaha, Nebraska
| | - James Noeun
- School of Pharmacy and Health Professions, Creighton University, Omaha, Nebraska
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38
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Waller CC, McLeod MD. A review of designer anabolic steroids in equine sports. Drug Test Anal 2016; 9:1304-1319. [DOI: 10.1002/dta.2112] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2016] [Revised: 10/05/2016] [Accepted: 10/07/2016] [Indexed: 12/14/2022]
Affiliation(s)
- Christopher C. Waller
- Research School of Chemistry; Australian National University; Canberra ACT Australia
| | - Malcolm D. McLeod
- Research School of Chemistry; Australian National University; Canberra ACT Australia
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39
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Thevis M, Geyer H, Tretzel L, Schänzer W. Sports drug testing using complementary matrices: Advantages and limitations. J Pharm Biomed Anal 2016; 130:220-230. [DOI: 10.1016/j.jpba.2016.03.055] [Citation(s) in RCA: 73] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2016] [Accepted: 03/27/2016] [Indexed: 01/14/2023]
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40
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Reverter-Branchat G, Bosch J, Vall J, Farré M, Papaseit E, Pichini S, Segura J. Determination of Recent Growth Hormone Abuse Using a Single Dried Blood Spot. Clin Chem 2016; 62:1353-60. [DOI: 10.1373/clinchem.2016.257592] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2016] [Accepted: 06/23/2016] [Indexed: 12/28/2022]
Abstract
Abstract
BACKGROUND
Although it is being increasingly applied, blood collection for drug testing in sport presents some logistic issues that complicate full applicability on a large scale. The use of dried blood spots (DBS) could benefit compliant blood testing considerably owing to its simplicity, minimal invasiveness, analyte stability, and reduced costs. The aim of this study was to evaluate the applicability of DBS to the methodology approved by the World Anti-Doping Agency (WADA) for detection of doping by recombinant human growth hormone (rhGH) in serum.
METHODS
A protocol for a single DBS analysis using the hGH isoforms differential immunoassays (kit 1 and kit 2) was developed and validated. A clinical study with healthy volunteers injected for 3 consecutive days with a low subcutaneous dose (0.027 mg · kg−1 · day−1 · person−1) of rhGH was conducted. Finger prick DBS and paired-time serum samples from arm venipuncture were compared.
RESULTS
The analysis of the DBS-based protocol indicated that with only a single blood spot it was possible to detect positivity for growth hormone abuse. In spite of the low rhGH dose administered and independently of the kit used, the window of detection for DBS was confirmed in all analyzed samples up to 8 h after rhGH administration and extended up to 12 h in 50% of the cases. Serum positivity was detected in all studied samples for 12 h after administration.
CONCLUSIONS
These results support the usefulness of DBS as a biological matrix for testing recent growth hormone abuse.
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Affiliation(s)
- Gemma Reverter-Branchat
- Bioanalysis Research Group, Neurosciences Research Program, IMIM (Hospital del Mar Medical Research Institute), Barcelona, Spain
| | - Jaume Bosch
- Bioanalysis Research Group, Neurosciences Research Program, IMIM (Hospital del Mar Medical Research Institute), Barcelona, Spain
| | - Jessica Vall
- Bioanalysis Research Group, Neurosciences Research Program, IMIM (Hospital del Mar Medical Research Institute), Barcelona, Spain
| | - Magí Farré
- Integrative Pharmacology and Systems Neuroscience Research Group, Neurosciences Research Program, IMIM (Hospital del Mar Medical Research Institute), Barcelona, Spain
- Department of Pharmacology, Therapeutics and Toxicology and Department of Psychiatry, Universitat Autònoma de Barcelona (UAB), Cerdanyola del Vallès (Bellaterra), Spain
- Clinical Pharmacology Unit. Hospital Universitari Germans Trias i Pujol-IGTP, Badalona, Spain
| | - Esther Papaseit
- Integrative Pharmacology and Systems Neuroscience Research Group, Neurosciences Research Program, IMIM (Hospital del Mar Medical Research Institute), Barcelona, Spain
- Department of Pharmacology, Therapeutics and Toxicology and Department of Psychiatry, Universitat Autònoma de Barcelona (UAB), Cerdanyola del Vallès (Bellaterra), Spain
- Clinical Pharmacology Unit. Hospital Universitari Germans Trias i Pujol-IGTP, Badalona, Spain
| | | | - Jordi Segura
- Bioanalysis Research Group, Neurosciences Research Program, IMIM (Hospital del Mar Medical Research Institute), Barcelona, Spain
- Department of Experimental and Health Sciences, Pompeu Fabra University, Barcelona, Spain
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41
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Genetic and protein biomarkers in blood for the improved detection of GH abuse. J Pharm Biomed Anal 2016; 128:111-118. [DOI: 10.1016/j.jpba.2016.05.022] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2016] [Revised: 04/29/2016] [Accepted: 05/15/2016] [Indexed: 11/20/2022]
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Abstract
Performance-enhancing substances (PESs) are used commonly by children and adolescents in attempts to improve athletic performance. More recent data reveal that these same substances often are used for appearance-related reasons as well. PESs include both legal over-the-counter dietary supplements and illicit pharmacologic agents. This report reviews the current epidemiology of PES use in the pediatric population, as well as information on those PESs in most common use. Concerns regarding use of legal PESs include high rates of product contamination, correlation with future use of anabolic androgenic steroids, and adverse effects on the focus and experience of youth sports participation. The physical maturation and endogenous hormone production that occur in adolescence are associated with large improvements in strength and athletic performance. For most young athletes, PES use does not produce significant gains over those seen with the onset of puberty and adherence to an appropriate nutrition and training program.
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Miller DJ, Blum AB, Levine WN, Ahmad CS, Popkin CA. Preparticipation Evaluation of the Young Athlete: What an Orthopaedic Surgeon Needs to Know. Am J Sports Med 2016; 44:1605-15. [PMID: 26330569 DOI: 10.1177/0363546515598994] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
The preparticipation evaluation (PPE) is a widely used tool for detecting health conditions that may delay or disqualify athletic participation. The medical interview is the most valuable tool for identifying athletes who may be at increased risk for injury. Physical examination is tailored to identifying cardiac abnormalities or factors that may place an athlete at increased risk for injury. Although practiced in Europe, universal cardiac screening with electrocardiography is not currently recommended in the United States largely due to the high rate of false-positive results. Neuropsychological testing for management of concussion and laboratory testing for sickle cell trait may be indicated in select groups of athletes. Health care providers should view the PPE as a chance for anticipatory guidance and athlete-directed health counseling. Despite widespread acceptance of the PPE, the quality of such examinations varies significantly, which is an area for possible improvement and further research.
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Affiliation(s)
- Daniel J Miller
- Center for Shoulder, Elbow and Sports Medicine, Department of Orthopedic Surgery, Columbia University, New York, New York, USA
| | | | - William N Levine
- Center for Shoulder, Elbow and Sports Medicine, Department of Orthopedic Surgery, Columbia University, New York, New York, USA
| | - Christopher S Ahmad
- Center for Shoulder, Elbow and Sports Medicine, Department of Orthopedic Surgery, Columbia University, New York, New York, USA
| | - Charles A Popkin
- Center for Shoulder, Elbow and Sports Medicine, Department of Orthopedic Surgery, Columbia University, New York, New York, USA
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44
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Vestergaard B, Thygesen P, Kreilgaard M, Fels JJ, Lykkesfeldt J, Agersø H. The kidneys play a central role in the clearance of rhGH in rats. Eur J Pharm Sci 2016; 86:29-33. [PMID: 26946443 DOI: 10.1016/j.ejps.2016.02.019] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2015] [Revised: 02/24/2016] [Accepted: 02/29/2016] [Indexed: 10/22/2022]
Abstract
The kidneys are thought to play an important role in the clearance of recombinant human growth hormone (rhGH), but the relative importance is not clear. Obtaining knowledge of clearance pathway is an important prerequisite for the development of new long acting growth hormone analogues targeted at treatment of patients with growth hormone disorders. The purpose of this study was to investigate the relative importance of the kidneys in the clearance of rhGH. The study employed a newly validated nephrectomy rat model and a population based pharmacokinetic approach to assess renal clearance of rhGH in non-anesthetized rats, anesthetized rats and in nephrectomized anesthetized rats. Clearance in non-anesthetized rats was 290 ml/h/kg. This was reduced to 185 ml/h/kg by anesthesia and further reduced to 18 ml/h/kg by nephrectomy. As nephrectomy was able to reduce clearance with 90%, we conclude that renal clearance plays a pivotal role in the elimination of rhGH in rats.
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Affiliation(s)
- Bill Vestergaard
- Global Research, Novo Nordisk A/S, Novo Nordisk Park, DK-2760 Måløv, Denmark; Faculty of Health and Medical Sciences, University of Copenhagen, Ridebanevej 9, DK-1870 Frederiksberg C, Denmark.
| | - Peter Thygesen
- Global Research, Novo Nordisk A/S, Novo Nordisk Park, DK-2760 Måløv, Denmark
| | - Mads Kreilgaard
- Global Research, Novo Nordisk A/S, Novo Nordisk Park, DK-2760 Måløv, Denmark
| | - Johannes Josef Fels
- Global Research, Novo Nordisk A/S, Novo Nordisk Park, DK-2760 Måløv, Denmark
| | - Jens Lykkesfeldt
- Faculty of Health and Medical Sciences, University of Copenhagen, Ridebanevej 9, DK-1870 Frederiksberg C, Denmark
| | - Henrik Agersø
- Global Research, Novo Nordisk A/S, Novo Nordisk Park, DK-2760 Måløv, Denmark
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Abstract
BACKGROUND Communal online folk pharmacology fuels the drive for short cuts in attaining muscle enhancement, fat loss, and youthful skin. OBJECTIVES The study used "netnography" to explore female use of CJC-1295, a synthetic growth hormone analogue from the perspectives contained in Internet forum activity. METHODS A systematic Internet search was conducted using variation of the term "CJC-1295"; and combined with "forum." Ninety-six hits related to bodybuilding websites where CJC-1295 was mentioned. Following application of exclusion criteria to confine to female use and evidence of forum activity, 9 sites remained. These were searched internally for reference to CJC-1295. Twenty-three discussion threads relating to female use of CJC-1295 formed the end data set, and analyzed using the Empirical Phenomenological Psychological method. RESULTS Forum users appeared well versed and experienced in the poly use of performance and image drug supplementation. Choice to use CJC-1295 centered on weight loss, muscle enhancement, youthful skin, improved sleep, and injury healing. Concerns were described relating to female consequences of use given gender variations in growth hormone pulses affecting estimation of dosage, cycling, and long-term consequences. CONCLUSIONS Public health interventions should consider female self-medicating use of synthetic growth hormone within a repertoire of product supplementation, and related adverse health consequences.
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Affiliation(s)
- Marie Claire Van Hout
- a Waterford Institute of Technology , Health, Sport and Exercise Science , Waterford , Ireland
| | - Evelyn Hearne
- b Liverpool John Moore's University , Liverpool , United Kingdom
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van den Broek I, Blokland M, Nessen MA, Sterk S. Current trends in mass spectrometry of peptides and proteins: Application to veterinary and sports-doping control. MASS SPECTROMETRY REVIEWS 2015; 34:571-594. [PMID: 24375671 DOI: 10.1002/mas.21419] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/05/2013] [Revised: 11/12/2013] [Accepted: 11/12/2013] [Indexed: 06/03/2023]
Abstract
Detection of misuse of peptides and proteins as growth promoters is a major issue for sport and food regulatory agencies. The limitations of current analytical detection strategies for this class of compounds, in combination with their efficacy in growth-promoting effects, make peptide and protein drugs highly susceptible to abuse by either athletes or farmers who seek for products to illicitly enhance muscle growth. Mass spectrometry (MS) for qualitative analysis of peptides and proteins is well-established, particularly due to tremendous efforts in the proteomics community. Similarly, due to advancements in targeted proteomic strategies and the rapid growth of protein-based biopharmaceuticals, MS for quantitative analysis of peptides and proteins is becoming more widely accepted. These continuous advances in MS instrumentation and MS-based methodologies offer enormous opportunities for detection and confirmation of peptides and proteins. Therefore, MS seems to be the method of choice to improve the qualitative and quantitative analysis of peptide and proteins with growth-promoting properties. This review aims to address the opportunities of MS for peptide and protein analysis in veterinary control and sports-doping control with a particular focus on detection of illicit growth promotion. An overview of potential peptide and protein targets, including their amino acid sequence characteristics and current MS-based detection strategies is, therefore, provided. Furthermore, improvements of current and new detection strategies with state-of-the-art MS instrumentation are discussed for qualitative and quantitative approaches.
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Affiliation(s)
- Irene van den Broek
- RIKILT Wageningen UR, Institute of Food Safety, Akkermaalsbos 2, 6708, WB, Wageningen, The Netherlands
- Department of Clinical Chemistry and Laboratory Medicine, Leiden University Medical Center (LUMC), Albinusdreef 2, 2333, ZA, Leiden, The Netherlands
| | - Marco Blokland
- RIKILT Wageningen UR, Institute of Food Safety, Akkermaalsbos 2, 6708, WB, Wageningen, The Netherlands
| | - Merel A Nessen
- RIKILT Wageningen UR, Institute of Food Safety, Akkermaalsbos 2, 6708, WB, Wageningen, The Netherlands
| | - Saskia Sterk
- RIKILT Wageningen UR, Institute of Food Safety, Akkermaalsbos 2, 6708, WB, Wageningen, The Netherlands
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47
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Bird SR, Goebel C, Burke LM, Greaves RF. Doping in sport and exercise: anabolic, ergogenic, health and clinical issues. Ann Clin Biochem 2015; 53:196-221. [DOI: 10.1177/0004563215609952] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/11/2015] [Indexed: 12/11/2022]
Abstract
The use of doping agents is evident within competitive sport in senior and junior age groups, where they are taken by non-elite as well as elite participants. They are also taken in non-sporting contexts by individuals seeking to ‘improve’ their physique through an increase in muscle and/or decrease in fat mass. While attaining accurate data on the prevalence of their use has limitations, studies suggest the illicit use of doping agents by athletes and non-athletes may be 1–5% in the population and greater than 50% in some groups; with the prevalence being higher in males. There is conclusive evidence that some doping agents are anabolic and ergogenic. There is also evidence that the use of doping agents such as anabolic androgenic steroids, growth hormone and other anabolic agents, erythropoietin and stimulants conveys considerable health risks that include, but are not limited to: cardiovascular disease, diabetes, cancer, mental health issues, virilisation in females and the suppression of naturally produced androgens in males. This review will outline the anabolic, ergogenic and health impacts of selected doping agents and methods that may be used in both the sporting and physique development contexts. It also provides a brief tabulated overview of the history of doping and how doping agents may impact upon the analyses of clinical samples.
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Affiliation(s)
- Stephen R Bird
- School of Medical Sciences, RMIT University, Victoria, Australia
| | - Catrin Goebel
- Australian Sports Drug Testing Laboratory, Sydney, Australia
| | | | - Ronda F Greaves
- School of Medical Sciences, RMIT University, Victoria, Australia
- Murdoch Children's Research Institute, Melbourne, Australia
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48
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Abstract
Growth hormone (GH) constitutes a set of closely related protein isoforms. In clinical practice, the disagreement of test results between commercially available ligand-binding assays is still an ongoing issue, and incomplete knowledge about the particular function of the different forms leaves an uncertainty of what should be the appropriate measurand. Mass spectrometry is promising to be a way forward. Not only is it capable of providing SI-traceable reference values for the calibration of current GH-tests, but it also offers an independent approach to highly reliable mass-selective quantification of individual GH-isoforms. This capability may add to reliability in doping control too. The article points out why and how.
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49
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Shinde UP, Moon HJ, Ko DY, Jung BK, Jeong B. Control of rhGH Release Profile from PEG–PAF Thermogel. Biomacromolecules 2015; 16:1461-9. [DOI: 10.1021/acs.biomac.5b00325] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Usha Pramod Shinde
- Department of Chemistry and
Nano Science, Ewha Womans University, 52 Ewhayeodae-gil, Seodaemun-gu, Seoul, 120-750, Korea
| | - Hyo Jung Moon
- Department of Chemistry and
Nano Science, Ewha Womans University, 52 Ewhayeodae-gil, Seodaemun-gu, Seoul, 120-750, Korea
| | - Du Young Ko
- Department of Chemistry and
Nano Science, Ewha Womans University, 52 Ewhayeodae-gil, Seodaemun-gu, Seoul, 120-750, Korea
| | - Bo Kyong Jung
- Department of Chemistry and
Nano Science, Ewha Womans University, 52 Ewhayeodae-gil, Seodaemun-gu, Seoul, 120-750, Korea
| | - Byeongmoon Jeong
- Department of Chemistry and
Nano Science, Ewha Womans University, 52 Ewhayeodae-gil, Seodaemun-gu, Seoul, 120-750, Korea
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