Substance Abuse Detection

PLoS ONE: an inclusive, peer-reviewed, open-access resource from the PUBLIC LIBRARY OF SCIENCE. Reports of well-performed scientific studies from all disciplines freely available to the whole world.

DSM-IV. Axis I diagnosis; ( 2) no lifetime history of alcohol or substance abuse or dependence; ( 3) no concomitant or past severe medical conditions, including head trauma; ( 4) no pregnancy, ( 5) ... Inclusion criteria for the control group were

The American Journal of Psychiatry VOL 169 No 4. AJP. Articles | April 01, 2012 . Neural Mechanisms Underlying 5-HTTLPR-Related Sensitivity to Acute Stress. Emily M. Drabant, Ph.D.; Wiveka Ramel, Ph.D.; Michael D. Edge, M.S.; Luke W. Hyde,

PLoS ONE: an inclusive, peer-reviewed, open-access resource from the PUBLIC LIBRARY OF SCIENCE. Reports of well-performed scientific studies from all disciplines freely available to the whole world.

PLoS ONE: an inclusive, peer-reviewed, open-access resource from the PUBLIC LIBRARY OF SCIENCE. Reports of well-performed scientific studies from all disciplines freely available to the whole world.

As substance abusers need to demonstrate abstinence prior to transplant, valid/reliable drug tests are needed. Patients may deny use, fearing surgery will be delayed. Breath, blood and urine tests have brief detection windows that allow patients to evade detection. Routine laboratory tests do not include all substances of abuse. Hair analysis overcomes these barriers, increasing the likelihood that active users will be identified. This study compared results for alcohol, opioids and cocaine based on 445 self-report, breath, urine and hair samples from 42 patients who had been denied a transplant due to recent substance abuse. Compared to hair toxicology, sensitivity for conventional drug tests was moderate for cocaine and opioids, but poor for alcohol. Of positive hair tests, only half were corroborated through other tests. In contrast, specificity was high across tests and substances, with positive findings from conventional tests confirmed through hair toxicology. Based on a 90-day

Since the late 1990s the illicit drug market has undergone considerable change: along with the traditional drugs of abuse that still dominate, more than 100 psychotropic substances designed to bypass controlled substances legislation have appeared and led to intoxications and fatalities. Starting from the huge class of phenylalkylamines, containing many subgroups, the spectrum of structures has grown from tryptamines, piperazines, phenylcyclohexyl derivates and pyrrolidinophenones to synthetic cannabinoids and the first synthetic cocaine. Due to the small prevalence and high number of unknown substances, the detection of new designer drugs is a challenge for clinical and forensic toxicologists. Standard screening procedures might fail because a recently discovered or yet unknown substance has not been incorporated in the library used. Nevertheless, many metabolism studies, case reports, screening methods and substance-profiling papers concentrating on single compounds have been

Human immunodeficiency virus (HIV) and AIDS continue to be associated with an underrecognized risk for suicidal ideation, attempted suicide, and completed suicide. Suicidal ideation represents an important predictor for subsequent attempted and completed suicide. We sought to implement routine screening of suicidal ideation and associated conditions using computerized patient-reported outcome (PRO) assessments.|Two geographically distinct academic HIV primary care clinics enrolled patients who attended scheduled visits from December 2005 through February 2009. Touch-screen, computer-based PRO assessments were implemented into routine clinical care. Substance abuse, alcohol consumption, depression, and anxiety were assessed. The 9-item Patient Health Questionnaire assesses the frequency of suicidal ideation in the preceding 2 weeks. A response of "nearly every day" triggered an automated page to predetermined clinic personnel, who completed more detailed self-harm assessments.|Overall,

11-Nor-Delta(9)-tetrahydrocannabinol-9-carboxylic acid ethyl ester (THC-COOEt) can be presumed to be a mixed metabolite formed during combined consumption of cannabinoids and alcohol. In order to examine this hypothesis, THC-COOEt and its deuterated analogue D(3)-THC-COOEt were synthesized as reference substance and internal standard from the corresponding carboxylic acids and diazoethane and methods were developed for the sensitive detection of THC-COOEt in plasma and hair based on gas chromatography-electron impact mass spectrometry after silylation with N-methyl-N-tert-butyldimethylsilyl-trifluoroacetamide and gas chromatography-negative chemical ionization mass spectrometry (GC-NCI-MS) as well as tandem mass spectrometry (GC-NCI-MS-MS) after derivatization with pentafluoropropionyl anhydride. The methods were applied for THC-COOEt determination to plasma samples from 22 drunk driving cases which contained both ethanol (0.30-2.16 mg/g) and THC-COOH (15-252 ng/mL) as well as to 12

Reviews the evidence for and against hundreds of preventive health services, recommending tests, and counseling interventions when evidence exists that it is effective.

Reviews the evidence for and against hundreds of preventive health services, recommending tests, and counseling interventions when evidence exists that it is effective.

Dr Alice Ordean received funding from National Institute on Drug Abuse grant R01 DA015741. ... Recommendations 1. All pregnant women and women of childbearing age should be screened periodically for alcohol, tobacco, and prescription and illicit drug use.