Publications by authors named "Julio De Carvalho Ponce"

Purpose: MDA-19 or BZO-HEXOXIZID (N'-[(3Z)-1-(1-hexyl)-2-oxo-1,2-dihydro-3H-indol-3-ylidene]-benzohydrazide), in a more recent nomenclature, was first synthesized in 2008 as a selective type-2 cannabinoid receptor (CB2) agonist due to its potential to treat neuropathic pain. In Brazil, this substance was identified in a series of 53 apprehensions between September 2021 and February 2022. Nevertheless, what intrigues toxicologists is that BZO-HEXOXIZID does not exert significant type-1 cannabinoid receptor (CB1) agonism-which is responsible for the well-known psychoactivity of Δ-9-tetrahydrocannabinol.

View Article and Find Full Text PDF
Article Synopsis
  • * Analysis of 56 infused paper sheet samples revealed that most were collected in 2019-2020, identifying seven different SCRAs, with MDMB-4en-PINACA and 5F-MDMB-PICA being the most prevalent.
  • * The findings indicate a growing trend of SCRAs in Brazilian prisons similar to patterns seen in Europe and the USA, which raises concerns about health risks and emphasizes the need for judicial action against the smuggling of new psychoactive substances.
View Article and Find Full Text PDF

Lucy in the Sky with Diamonds, a John Lennon song that was a hit in the 1960s, was born amidst a social context enlightened by lysergic acid diethylamide (LSD). In Brazil, both the drug and the song were very popular at the time, although it gradually mitigated. Nevertheless, while the song remains out of the spotlight, LSD derivatives are currently gaining attention with the rising of the new psychoactive substances (NPS).

View Article and Find Full Text PDF

This case report deals with an unusual seized drugs case, in which cocaine, more commonly found in powder form or as crack cocaine, was found in herbs similar to those used to deliver synthetic cannabinoids. A comparison with expected physical appearance and chemical results for a genuine coca leaf is also presented.

View Article and Find Full Text PDF

Introduction: Most bioanalytical LC-MS/MS methods are developed for determination of single drugs or classes of drugs, but a multi-compound LC-MS/MS method that can replace several methods could reduce both analysis time and costs. The aim of this study was to develop a high-throughput LC-MS/MS method for determination of the alcohol biomarker phosphatidylethanol 16:0/18:1 (PEth 16:0/18:1) and 33 other compounds from eight different drug classes in whole blood.

Methods: Whole-blood samples were prepared by 96-well supported liquid extraction (SLE).

View Article and Find Full Text PDF

Road traffic crashes (RTCs) are responsible for a large number of deaths worldwide, but low- and middle-income countries frequently present higher rates of deaths; for example, Norway, a high-income country, has a rate of 2.0 drivers killed per 100,000 inhabitants, whereas Brazil, a middle-income country, has a rate of 18.4.

View Article and Find Full Text PDF

Objective: The aim of the study was to evaluate whether the current legislation would encourage drunk drivers to refrain from taking a breathalyzer and thus avoid jail time.

Method: Brazilian traffic laws currently have 3 possible punishments for drivers suspected of driving under the influence: A fine and suspension of license for 12 months if the breathalyzer result is under 0.3 mg/L (by law; a result up to 0.

View Article and Find Full Text PDF

Aims: The aims of the present study were to characterize fatal traffic accident victims in a major urban center in Brazil and their association with alcohol consumption.

Methods: Cross-sectional study of 907 fatal traffic accident victims in Sao Paulo, in 2005.

Results: Adult males between the ages of 25 and 54 represented the majority of cases with positive blood alcohol concentrations (BAC).

View Article and Find Full Text PDF

In Spain, crack cocaine use is silently increasing. In Barcelona, an intentional sample was selected to describe the general characteristics of this consumption. Participants were submitted to an interview and data were analyzed through qualitative research procedures.

View Article and Find Full Text PDF

Background: Cognitive changes due to crack cocaine consumption remain unclear.

Methods: For clarification, 55 subjects were assigned to three groups: control group, crack cocaine current users, and ex-users. Participants were submitted to Mini-Mental State Examination (MMSE) and tasks evaluating executive functioning and verbal memory.

View Article and Find Full Text PDF

Aims: To assess the association between alcohol use and victimization by homicide in individuals autopsied at the Institute of Legal Medicine in São Paulo, Brazil.

Design: Cross-sectional study.

Setting: Excessive consumption of alcohol is a serious public health issue and a major factor in triggering violent situations, which suggests a strong association between alcohol ingestion and becoming a victim of homicide.

View Article and Find Full Text PDF

Objective: To analyze alcohol, tobacco and other drug use among medical students.

Method: Over a five-year period (1996-2001), we evaluated 457 students at the Universidade de São Paulo School of Medicine, located in São Paulo, Brazil. The students participated by filling out an anonymous questionnaire on drug use (lifetime, previous 12 months and previous 30 days).

View Article and Find Full Text PDF

A PHP Error was encountered

Severity: Warning

Message: fopen(/var/lib/php/sessions/ci_sessiondikrogk5lv5hfl86nbb06obphjc06ni1): Failed to open stream: No space left on device

Filename: drivers/Session_files_driver.php

Line Number: 177

Backtrace:

File: /var/www/html/index.php
Line: 316
Function: require_once

A PHP Error was encountered

Severity: Warning

Message: session_start(): Failed to read session data: user (path: /var/lib/php/sessions)

Filename: Session/Session.php

Line Number: 137

Backtrace:

File: /var/www/html/index.php
Line: 316
Function: require_once