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de Amorim Ribeiro IC, da Costa CAS, da Silva VAP, Côrrea LBNS, Boaventura GT, Chagas MA. Flaxseed reduces epithelial proliferation but does not affect basal cells in induced benign prostatic hyperplasia in rats. Eur J Nutr 2016; 56:1201-1210. [PMID: 26857761 DOI: 10.1007/s00394-016-1169-1] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2015] [Accepted: 01/29/2016] [Indexed: 02/04/2023]
Abstract
PURPOSE This study aimed to quantitatively and qualitatively evaluate the effects of a flaxseed-based diet on the histoarchitecture of the prostate of normal Wistar rats and of rats with induced BPH. METHODS The study included four experimental groups of ten animals each: casein control group (CCG), who were fed a casein-based diet; flaxseed control group (FCG), who were fed a flaxseed-based diet; hyperplasia-induced casein group (HICG), who were fed a casein-based diet; and hyperplasia-induced flaxseed group (HIFG), who were fed a flaxseed-based diet. Hyperplasia was induced by the subcutaneous implantation of silicone pellets containing testosterone propionate. After 20 weeks, the rats were euthanized and their prostate fixed in buffered formalin. Tissue sections were stained with HE, picrosirius red and immunostained for nuclear antigen p63. Histomorphometric analysis evaluated the epithelial thickness, epithelial area, individual luminal area, and total area of prostatic alveoli. RESULTS The mean epithelial thickness obtained for HIFG and HICG was 16.52 ± 1.65 and 20.58 ± 2.86 µm, respectively. The mean epithelial thickness in HICG was greater than that in the other groups tested. HIFG had a smaller epithelial thickness and lower percentage of papillary projections in the prostatic alveoli. No significant difference was observed between CCG and FCG. The total area and mean alveolar area showed no significant differences between the groups. The number of cells immunostained for p63 was not significantly different between the groups evaluated. CONCLUSION These results suggest that flaxseed has a protective effect on the prostate epithelium in BPH-induced animals.
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Affiliation(s)
- Ilma Cely de Amorim Ribeiro
- Department of Morphology, Laboratory of Cellular and Extracellular Biomorphology Biomedic Institute, Federal Fluminense University, Rua Hernani Melo, 101, São Domingos, Niterói, Rio de Janeiro, RJ, 24210-130, Brazil
| | - Carlos Alberto Soares da Costa
- Department of Nutrition and Dietetics, Experimental Nutrition Laboratory, College of Nutrition, Federal Fluminense University, 30/5th floor, Rio de Janeiro, 24020-140, Brazil
| | - Vivian Alves Pereira da Silva
- Department of Morphology, Laboratory of Cellular and Extracellular Biomorphology Biomedic Institute, Federal Fluminense University, Rua Hernani Melo, 101, São Domingos, Niterói, Rio de Janeiro, RJ, 24210-130, Brazil
| | - Lanna Beatriz Neves Silva Côrrea
- Department of Morphology, Laboratory of Cellular and Extracellular Biomorphology Biomedic Institute, Federal Fluminense University, Rua Hernani Melo, 101, São Domingos, Niterói, Rio de Janeiro, RJ, 24210-130, Brazil
| | - Gilson Teles Boaventura
- Department of Nutrition and Dietetics, Experimental Nutrition Laboratory, College of Nutrition, Federal Fluminense University, 30/5th floor, Rio de Janeiro, 24020-140, Brazil
| | - Mauricio Alves Chagas
- Department of Morphology, Laboratory of Cellular and Extracellular Biomorphology Biomedic Institute, Federal Fluminense University, Rua Hernani Melo, 101, São Domingos, Niterói, Rio de Janeiro, RJ, 24210-130, Brazil.
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Abushareeda W, Fragkaki A, Vonaparti A, Angelis Y, Tsivou M, Saad K, Kraiem S, Lyris E, Alsayrafi M, Georgakopoulos C. Advances in the detection of designer steroids in anti-doping. Bioanalysis 2014; 6:881-96. [PMID: 24702116 DOI: 10.4155/bio.14.9] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023] Open
Abstract
The abuse of unknown designer androgenic anabolic steroids (AAS) is considered to be an issue of significant importance, as AAS are the choice of doping preference according to World Anti-doping Agency statistics. In addition, unknown designer AAS are preferred since the World Anti-doping Agency mass spectrometric identification criteria cannot be applied to unknown molecules. Consequently, cheating athletes have a strong motive to use designer AAS in order to both achieve performance enhancement and to escape from testing positive in anti-doping tests. To face the problem, a synergy is required between the anti-doping analytical science and sports anti-doping regulations. This Review examines various aspects of the designer AAS. First, the structural modifications of the already known AAS to create new designer molecules are explained. A list of the designer synthetic and endogenous AAS is then presented. Second, we discuss progress in the detection of designer AAS using: mass spectrometry and bioassays; analytical data processing of the unknown designer AAS; metabolite synthesis; and, long-term storage of urine and blood samples. Finally, the introduction of regulations from sports authorities as preventive measures for long-term storage and reprocessing of samples, initially reported as negatives, is discussed.
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Al-Niaimi F, Lyon CC. Acute Kidney Injury Due to Interaction of Methyl-1-testosterone with Ciclosporin Metabolism in a Patient with Severe Atopic Dermatitis. Dermatol Ther (Heidelb) 2013; 3:211-4. [PMID: 24281763 PMCID: PMC3889302 DOI: 10.1007/s13555-013-0038-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2013] [Indexed: 11/04/2022] Open
Abstract
Ciclosporin is widely used in a number of inflammatory disorders and has the potential for drug interactions. We report here a case of acute kidney injury due to the interaction of ciclosporin with methyl-1-testosterone. This has not been previously reported and it is relevant as methyl-1-testosterone can be purchased online. Physicians should be aware of any over the counter or online purchased “supplements” and consider possible drug interactions.
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Affiliation(s)
- Firas Al-Niaimi
- St. John's Institute of Dermatology, Guy's Hospital, London, UK,
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J Pozo O, De Brabanter N, Fabregat A, Segura J, Ventura R, Van Eenoo P, Deventer K. Current status and bioanalytical challenges in the detection of unknown anabolic androgenic steroids in doping control analysis. Bioanalysis 2013; 5:2661-77. [DOI: 10.4155/bio.13.242] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023] Open
Abstract
Androgenic anabolic steroids (AAS) are prohibited in sports due to their anabolic effects. Doping control laboratories usually face the screening of AAS misuse by target methods based on MS detection. Although these methods allow for the sensitive and specific detection of targeted compounds and metabolites, the rest remain undetectable. This fact opens a door for cheaters, since different AAS can be synthesized in order to evade doping control tests. This situation was evidenced in 2003 with the discovery of the designer steroid tetrahydrogestrinone. One decade after this discovery, the detection of unknown AAS still remains one of the main analytical challenges in the doping control field. In this manuscript, the current situation in the detection of unknown AAS is reviewed. Although important steps have been made in order to minimize this analytical problem and different analytical strategies have been proposed, there are still some drawbacks related to each approach.
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Saifullah, Khan S, Azizuddin, Halim SA, Kashif M, Jabeen A, Asif M, Mesaik MA, Ul-Haq Z, Dar A, Choudhary MI. In-vitro immunomodulatory and anti-cancerous activities of biotransformed products of Dianabol through Azadirachta indica and its molecular docking studies. Chem Cent J 2013; 7:163. [PMID: 24764465 PMCID: PMC3874778 DOI: 10.1186/1752-153x-7-163] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2013] [Accepted: 06/06/2013] [Indexed: 12/28/2022] Open
Abstract
Background Plant Biotransformation is one of the tools for structural modifications of the organic substrate of low, moderate or high biological value utilizing plant cultured cells, these modifications of organic structures may lead to biologically augmented products and which may be ultimately substantial in cure or improvement of various morbidities and diseases. Results Azadirachta indica A. Juss. suspension culture was employed for the biotransformation of dianabol (1) for the first time, and two metabolites, 17β-hydroxy-17α-methyl-5α-androst-1-en-3-one (2), and 17β-hydroxy-17α-methyl-5α-androstan-3-one (3) were obtained. Conclusions Most important aspect of this work was the evaluation of metabolite 2, which strongly and differentially suppressed [not affecting whole blood and human polymorphonuclear cells (PMN)] the phytohemagglutinin (PHA)-activated T-cell proliferation (IC50: <10.33 μM), and also found to inhibit IL-2 production (IC50: 16.89 ± 1.32) unlike metabolite 3 and compound 1. Compound 2 also exhibited anticancer activity against lung cancer cell line; NCI-H460, it moderately inhibited the growth of cancer cells (22.5 ± 4.15 μM). Furthermore, a good correlation between the predicted binding energies of the compounds acquired by the FlexX program and the experimental affinities were speculated upon interacting with IL-2 protein during molecular docking studies.
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Affiliation(s)
- Saifullah
- Department of Biotechnology, Faculty of Science, University of Karachi, Karachi 75270, Pakistan
| | - Saifullah Khan
- Department of Biotechnology, Faculty of Science, University of Karachi, Karachi 75270, Pakistan
| | - Azizuddin
- Department of Chemistry, Federal Urdu University for Arts, Science & Technology, Gulshan-e-Iqbal Campus, Karachi 75300, Pakistan
| | - Sobia Ahsan Halim
- Dr. Panjwani Center for Molecular Medicine and Drug Research, International Center for Chemical and Biological Sciences, University of Karachi, Karachi 75270, Pakistan
| | - Muhammad Kashif
- Department of Biotechnology, Faculty of Science, University of Karachi, Karachi 75270, Pakistan
| | - Almas Jabeen
- Dr. Panjwani Center for Molecular Medicine and Drug Research, International Center for Chemical and Biological Sciences, University of Karachi, Karachi 75270, Pakistan
| | - Muhmammad Asif
- Dr. Panjwani Center for Molecular Medicine and Drug Research, International Center for Chemical and Biological Sciences, University of Karachi, Karachi 75270, Pakistan
| | - Muhammad Ahmed Mesaik
- Dr. Panjwani Center for Molecular Medicine and Drug Research, International Center for Chemical and Biological Sciences, University of Karachi, Karachi 75270, Pakistan
| | - Zaheer Ul-Haq
- Dr. Panjwani Center for Molecular Medicine and Drug Research, International Center for Chemical and Biological Sciences, University of Karachi, Karachi 75270, Pakistan
| | - Ahsana Dar
- Department of Biotechnology, Faculty of Science, University of Karachi, Karachi 75270, Pakistan ; Dr. Panjwani Center for Molecular Medicine and Drug Research, International Center for Chemical and Biological Sciences, University of Karachi, Karachi 75270, Pakistan
| | - Muhammad Iqbal Choudhary
- Department of Biotechnology, Faculty of Science, University of Karachi, Karachi 75270, Pakistan ; Dr. Panjwani Center for Molecular Medicine and Drug Research, International Center for Chemical and Biological Sciences, University of Karachi, Karachi 75270, Pakistan
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Vargas RA, Oliveira LP, Frankenfeld S, Souza DBD, Costa WS, Favorito LA, Sampaio FJB. The prostate after administration of anabolic androgenic steroids: a morphometrical study in rats. Int Braz J Urol 2013; 39:675-82. [DOI: 10.1590/s1677-5538.ibju.2013.05.10] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2013] [Accepted: 07/25/2013] [Indexed: 11/22/2022] Open
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Cavalcanti GDA, Leal FD, Garrido BC, Padilha MC, de Aquino Neto FR. Detection of designer steroid methylstenbolone in "nutritional supplement" using gas chromatography and tandem mass spectrometry: elucidation of its urinary metabolites. Steroids 2013. [PMID: 23200734 DOI: 10.1016/j.steroids.2012.11.009] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
The use of "nutritional supplements" containing unapproved substances has become a regular practice in amateur and professional athletes. This represents a dangerous habit for their health once no data about toxicological or pharmacological effects of these supplements are available. Most of them are freely commercialized online and any person can buy them without medical surveillance. Usually, the steroids intentionally added to the "nutritional supplements" are testosterone analogues with some structural modifications. In this study, the analyzed product was bought online and a new anabolic steroid known as methylstenbolone (2,17α-dimethyl-17β-hydroxy-5α-androst-1-en-3-one) was detected, as described on label. Generally, anabolic steroids are extensively metabolized, thus in-depth knowledge of their metabolism is mandatory for doping control purposes. For this reason, a human excretion study was carried out with four volunteers after a single oral dose to determine the urinary metabolites of the steroid. Urine samples were submitted to enzymatic hydrolysis of glucuconjugated metabolites followed by liquid-liquid extraction and analysis of the trimethylsilyl derivatives by gas chromatography coupled to tandem mass spectrometry. Mass spectrometric data allowed the proposal of two plausible metabolites: 2,17α-dimethyl-16ξ,17β-dihydroxy-5α-androst-1-en-3-one (S1), 2,17α-dimethyl-3α,16ξ,17β-trihydroxy-5α-androst-1-ene (S2). Their electron impact mass spectra are compatible with 16-hydroxylated steroids O-TMS derivatives presenting diagnostic ions such as m/z 231 and m/z 218. These metabolites were detectable after one week post administration while unchanged methylstenbolone was only detectable in a brief period of 45 h.
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Rogol AD. How does an anabolic/androgenic steroid get banned from sport competition? Endocrinology 2011; 152:4473-4. [PMID: 22117000 DOI: 10.1210/en.2011-1847] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Affiliation(s)
- Alan D Rogol
- Department of Pediatrics, University of Virginia, Charlottesville, Virginia 22911, USA.
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