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dc.contributor.author Ulloa, Jerónimo Luis
dc.contributor.author Sambrotta, Luis Jorge
dc.contributor.author Redko, Flavia del Carmen
dc.contributor.author Mazza, Osvaldo Néstor
dc.contributor.author Garrido, Gustavo
dc.contributor.author Becher, Edgardo F.
dc.contributor.author Muschietti, Liliana Victoria
dc.date.available 2017-06-19T17:36:50Z
dc.date.issued 2014-11
dc.identifier.citation Ulloa, Jerónimo Luis; Sambrotta, Luis Jorge; Redko, Flavia del Carmen; Mazza, Osvaldo Néstor; Garrido, Gustavo; et al.; Detection of a tadalafil analogue as an adulterant in a dietary supplement for erectile dysfunction; Elsevier; Journal of Sexual Medicine; 12; 1; 11-2014; 152-157
dc.identifier.issn 1743-6095
dc.identifier.uri http://hdl.handle.net/11336/18432
dc.description.abstract INTRODUCTION: Several cases of adulteration of dietary supplements with tadalafil, sildenafil, and vardenafil, or their unapproved analogues have been reported worldwide. Mainly, the presence of the latter represents a serious health risk to consumers as their efficacy and toxic effects have not been assessed and may result in unpredictable adverse effects. AIM: To investigate the suspected adulteration with synthetic phosphodiesterase type 5 (PDE-5) inhibitors in a dietary supplement marketed in Argentina for the treatment of erectile dysfunction (ED). METHODS: The content of the capsules of the dietary supplement (sample A) was analyzed by thin layer chromatography (TLC) and high-performance liquid chromatography (HPLC) diode-array detection. From the organic extract of sample A, a major compound was purified by column chromatography (CC). The isolated compound was identified by proton nuclear magnetic resonance (1H NMR) and carbon NMR (13C NMR), heteronuclear single quantum coherence, distortionless enhancement by polarization transfer (DEPT 135), electrospray ionization mass spectrometry, and ultraviolet, and infrared (Fourier transform infrared spectroscopy) spectroscopy. MAIN OUTCOME MEASURE: Proof of adulteration of herbal products with synthetic PDE-5 inhibitors. RESULTS: By TLC and HPLC analysis, a major compound was detected in sample A organic extract. The purification of this extract by CC led to the isolation of a pure compound which was identified according to its spectral data as (6R,12aR)-2-amino-6-(1,3-benzodioxol-5-yl)-2,3,6,7,12,12a-hexahydropyrazino [1',2':1,6] pyrido [3,4-b] indole-1,4-dione or aminotadalafil. CONCLUSIONS: An unapproved PDE-5 inhibitor analogue, which was identified as aminotadalafil, has been detected in a dietary supplement. This study represents the first report in Latin America and one of the few independent studies of an adulteration with an unapproved PDE-5 inhibitor of an herbal product for ED treatment.
dc.format application/pdf
dc.language.iso eng
dc.publisher Elsevier
dc.rights info:eu-repo/semantics/restrictedAccess
dc.rights.uri https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject ERECTILE DYSFUNCTION
dc.subject DIETARY SUPPLEMENTS
dc.subject PDE-5 INHIBITOR ANALOGUES
dc.subject ADULTERATION AMINOTADALAFIL
dc.subject.classification Ética Médica
dc.subject.classification Ciencias de la Salud
dc.subject.classification CIENCIAS MÉDICAS Y DE LA SALUD
dc.title Detection of a tadalafil analogue as an adulterant in a dietary supplement for erectile dysfunction
dc.type info:eu-repo/semantics/article
dc.type info:ar-repo/semantics/artículo
dc.type info:eu-repo/semantics/publishedVersion
dc.date.updated 2017-06-16T21:32:06Z
dc.journal.volume 12
dc.journal.number 1
dc.journal.pagination 152-157
dc.journal.pais Países Bajos
dc.journal.ciudad Ámsterdam
dc.description.fil Fil: Ulloa, Jerónimo Luis. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay. Instituto de Química y Metabolismo del Fármaco. Universidad de Buenos Aires. Facultad de Farmacia y Bioquímica. Instituto de Química y Metabolismo del Fármaco; Argentina. Universidad de Buenos Aires. Facultad de Farmacia y Bioquímica. Departamento de Farmacología. Cátedra de Farmacognosia; Argentina
dc.description.fil Fil: Sambrotta, Luis Jorge. Universidad de Buenos Aires. Facultad de Farmacia y Bioquímica. Laboratorio Nacional de Investigaciones y Servicios; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
dc.description.fil Fil: Redko, Flavia del Carmen. Universidad de Buenos Aires. Facultad de Farmacia y Bioquímica. Departamento de Farmacología. Cátedra de Farmacognosia; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay. Instituto de Química y Metabolismo del Fármaco. Universidad de Buenos Aires. Facultad de Farmacia y Bioquímica. Instituto de Química y Metabolismo del Fármaco; Argentina
dc.description.fil Fil: Mazza, Osvaldo Néstor. Universidad de Buenos Aires. Facultad de Medicina. Hospital de Clínicas General San Martín; Argentina
dc.description.fil Fil: Garrido, Gustavo. Universidad de Buenos Aires. Facultad de Medicina. Hospital de Clínicas General San Martín; Argentina
dc.description.fil Fil: Becher, Edgardo F.. Universidad de Buenos Aires. Facultad de Medicina. Hospital de Clínicas General San Martín; Argentina
dc.description.fil Fil: Muschietti, Liliana Victoria. Universidad de Buenos Aires. Facultad de Farmacia y Bioquímica. Departamento de Farmacología. Cátedra de Farmacognosia; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay. Instituto de Química y Metabolismo del Fármaco. Universidad de Buenos Aires. Facultad de Farmacia y Bioquímica. Instituto de Química y Metabolismo del Fármaco; Argentina
dc.journal.title Journal of Sexual Medicine
dc.relation.alternativeid info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S1743609515308912?via%3Dihub
dc.relation.alternativeid info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1111/jsm.12759


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