María Antonia Martínez

Prevalence study of drugs and new psychoactive substances in hair of ketamine consumers using a methanolic direct extraction prior to high-resolution mass spectrometry

José Manuel Matey, Gemma Montalvo, Carmen García‐Ruiz, Félix Zapata et autres

Few studies have reported the prevalence or incidence about the consumption of new psychoactive substances (NPS). The hair analysis can be useful for this purpose. At the present, ketamine is the most consumed arylcyclohexylamine associated to young consumers and polyconsumption profiles. For …

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Response of human cancer cells to simultaneous treatment with sorafenib and radiofrequency current

María Luisa Hernández‐Bule, María Antonia Martínez, María Ángeles Trillo, Lidia Martínez et autres

Due to their alleged analgesic, anti-inflammatory and tissue regenerative effects, capacitive-resistive electrothermal therapy (CRET), which is based on non-invasive exposure to radiofrequency (RF) currents, is often applied to chemotherapeutically treated patients with cancer. Our previous studies have demonstrated that subthermal CRET currents …

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Identification of 2C-B in Hair by UHPLC-HRMS/MS. A Real Forensic Case

José Manuel Matey, Adrián López-Fernández, Carmen García‐Ruiz, Gemma Montalvo et autres

The analysis of drugs of abuse in hair and other biological matrices of forensic interest requires great selectivity and sensitivity. This has been traditionally achieved through target analysis, using one or more analytical methods that include different preanalytical stages, and more complex …

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Potential of High-Resolution Mass Spectrometry for the Detection of Drugs and Metabolites in Hair: Methoxetamine in a Real Forensic Case

José Manuel Matey, Adrián López-Fernández, Carmen García‐Ruiz, Gemma Montalvo et autres

The analysis of drugs of abuse in hair and other biological matrices of forensic interest requires great selectivity and sensitivity. This is done traditionally through target analysis, with one or more analytical methods, or with different and specific preanalytical phases, and complex …

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Effects of the signal modulation on the response of human fibroblasts to in vitro stimulation with subthermal RF currents

María Ángeles Trillo, María Antonia Martínez, Alejandro Úbeda

Capacitive-Resistive Electric Transfer (CRET) thermotherapies aim at tissue repair and regeneration through non-invasive application of RF currents. We have reported that the cellular response to subthermal CRET currents is non-linearly dependent on the signal frequency, and that in vitro exposure to a …

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Opium poisoning in modern times. An overview

María Antonia Martínez, Salomé Ballesteros

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Medical and Biochemical Effects of Intervention Program in Patients with Poor Adherence to rhGH Treatment

María Antonia Martínez, Marta Murillo, Estefania Guerrini, María Luisa Granada et autres

Xylazine intoxication in humans and its importance as an emerging adulterant in abused drugs: A comprehensive review of the literature

Kazandra Ruiz-Colón, Carlos Chavez-Arias, José Eric Díaz-Alcalá, María Antonia Martínez

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Simultaneous Determination of Xylazine, Free Morphine, Codeine, 6-Acetylmorphine, Cocaine and Benzoylecgonine in Postmortem Blood by UPLC-MS-MS

Kazandra Ruiz-Colón, María Antonia Martínez, L. A. Silva-Torres, Carlos Chavez-Arias et autres

Xylazine, a veterinary sedative, has been found as an adulterant of heroin in street drugs in Puerto Rico. It was found in combination with free morphine and 6-acetylmorphine, codeine, cocaine and benzoylecgonine in postmortem cases at the Puerto Rico Institute of Forensic …

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Reporting a fatality during tumescent liposuction

María Antonia Martínez, Salomé Ballesteros, Luis J. Segura, M Zorita Garcia

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Three-dimensional reconstruction of the Ephrin-B2 female mouse model of anorectal malformations

Juan Carlos Prieto, Nilda M. García, María Antonia Martínez, Christopher Dravis et autres

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A Comparative Solid-Phase Extraction Study for the Simultaneous Determination of Fluvoxamine, Mianserin, Doxepin, Citalopram, Paroxetine, and Etoperidone in Whole Blood by Capillary Gas-Liquid Chromatography with Nitrogen-Phosphorus Detection

María Antonia Martínez, Carolina Sánchez de la Torre, Elena Almarza

This paper reports a simple and reliable gas chromatographic method with nitrogen-phosphorus detection without derivatization for the simultaneous detection of fluvoxamine, mianserin, doxepin, citalopram, paroxetine, and etoperidone in whole blood as part of a systematic toxicological analysis (STA). All drugs were studied …

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