Results 111 to 120 of about 13,271 (276)

In Vivo and In Vitro Evaluation of PTeCA (1H‐Pyrrole‐2,3,4,5‐Tetracarboxylic Acid) in Hair Matrix as a Marker for Oxidative Cosmetic Treatment

open access: yesDrug Testing and Analysis, EarlyView.
A total of 3378 self‐reported treated and untreated hair samples were analyzed for PTCA and PTeCA by LC‐MS/MS. Moreover, their in vitro formation was assessed in 225 untreated hair by different cosmetic treatments with and without oxidative agents. Data suggest that PTeCA could be a reliable marker for oxidative cosmetic treatments in hair.
Sara Casati   +8 more
wiley   +1 more source

Chemical Straightening as a Source of Analytical Variability in Hair Testing: A Dual‐Analyte Case Report

open access: yesDrug Testing and Analysis, EarlyView.
ABSTRACT Hair analysis is increasingly used in forensic toxicology; however, result interpretation may be influenced by cosmetic hair treatments. Although the effects of bleaching, dyeing, and thermal straightening have already been evaluated, data on permanent chemical hair straightening are scarce, particularly under in vivo conditions.
Miriam Blanco‐Ces   +5 more
wiley   +1 more source

Influence of Different Washing Hair Procedures in the Quantitative Determination of THC and THCCOOH

open access: yesDrug Testing and Analysis, EarlyView.
Different hair decontamination protocols significantly affect THC quantification, with marked analyte loss—particularly after aqueous‐organic washing—whereas THCCOOH remains stable. These findings highlight the risk of misinterpretation and the need for standardized washing procedures in hair analysis.
Valentina Martini   +8 more
wiley   +1 more source

Identification and Characterization of the Designer Opioid N‐Pyrrolidino Fluetonitazene in Nasal Spray

open access: yesDrug Testing and Analysis, EarlyView.
N‐Pyrrolidino fluetonitazene, a synthetic opioid, was identified and characterized in a nasal spray using GC‐MS, LC‐QTOF‐MS, NMR and FT‐IR. ABSTRACT Detection of drugs in non‐biological samples serves as a fundamental basis for identifying emerging trends in the field of new psychoactive substances and provides valuable information for optimizing ...
Fabian Picht   +4 more
wiley   +1 more source

The caring experiences of family caregivers for patients with advanced cancer in Uganda: A qualitative study. [PDF]

open access: yesPLoS One, 2023
Najjuka SM   +10 more
europepmc   +1 more source

Detection of the GH Analogue Redalsomatropin Alfa in Sports Drug Testing: Immunological Approaches and LC‐HRMS/MS

open access: yesDrug Testing and Analysis, EarlyView.
After evaluating the compatibility of the GH analogue redalsomatropin alfa with approved doping control immunoassays for rhGH, it was implemented into the existing detection method for somatrogon employing affinity purification with GHR‐Fc‐conjugated magnetic beads, tryptic digestion, and LC‐HRMS/MS to allow for a specific and sensitive detection ...
Katja Walpurgis   +6 more
wiley   +1 more source

Recreational Drug Use at a Music Festival: A Dual Approach Using Hair Biomarkers Analysis and Participant Self‐Reported Drug Use

open access: yesDrug Testing and Analysis, EarlyView.
Combined self‐report and hair analysis in festival attendees (n = 249) revealed substantial discrepancies in drug use reporting, particularly for stimulants and dissociatives. This integrated approach enhances detection of poly‐drug use and provides a more reliable basis for monitoring and harm‐reduction strategies.
A. Y. Simão   +4 more
wiley   +1 more source

The characteristics of older homicide offenders: a systematic review. [PDF]

open access: yesPsychiatr Psychol Law, 2022
Nguyen H, Haeney O, Galletly C.
europepmc   +1 more source

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