Laboratory Abstracts – The 2022 PEth in Mind Conference

Laboratory #1

Presenting laboratory address and contactMartin Javors, PhD
Biological Psychiatry Analytical Lab
Department of Psychiatry and Behavioral Sciences
UT-Long School of Medicine
7703 Floyd Curl Drive
San Antonio, Texas 78229
CountryUSA
Name of the presenterMartin Javors
Email address of the presenterjavors( @ )uthscsa.edu
Applied Matrices and sampling devicesMatrices: liquid whole blood samples, thawed liquid whole blood samples, dried blood spots on spot cards, dried blood in TASSO plugs, human brain tissue
For what purposes does your laboratory analyze PEth?RESEARCH: contingency management studies, pharmacokinetics of PEth homologs, combined PEth, BrAC, and TAC identifying alcohol consumption in defendants of DUI. FORENSIC: PEth retest measurements for professionals (medical, dental, pilots, nurses)

Laboratory #2

Presenting laboratory address and contactColorado Antiviral Pharmacology (CAVP) Lab

Department of Pharmaceutical Sciences
Skaggs School of Pharmacy and Pharmaceutical Sciences
University of Colorado – Anschutz Medical Campus
12850 E. Montview Blvd
MS C238-V20-4410
Aurora, CO 80045

Contact: Dr. Jennifer Kiser
Email:jennifer.kiser@cuanschutz.edu
Phone:303-724-6131
CountryUnited States
Name of the presenterLana Salah
Email address of the presenterlana.salah ( @ ) cuanschutz.edu
Applied Matrices and sampling devicesOur method utilizes dried blood spot (DBS) samples. During method development, we utilized dried blood spots obtained via whole blood from venipuncture that was then spotted as 25 µL DBS onto Whatman 903 protein saver cards. During validation however, we found that our method is accurate and precise with a wide range of DBS volumes (10 to 75 µL).
For what purposes does your laboratory analyze PEth?We analyze PEth as part of clinical research, to quantify alcohol consumption and associate with clinical outcomes. We assist investigators in several therapeutic areas, but our lab directors and core investigators are primarily focused on antiviral clinical pharmacology research in persons with viral hepatitis, HIV, or at risk for HIV.
Additional comments which you would like to share regarding your upcoming presentationOur group discovered and conceived of the test to measure tenofovir-diphosphate in dried blood spots as a measure of cumulative adherence to tenofovir-based HIV prevention and treatment. We therefore have significant experience in developing DBS-based biomarkers and evaluating the factors that influence DBS measures. In the course of development and validation of our DBS-based PEth method, we followed FDA assay validation guidelines, but also evaluated crucial DBS-specific parameters that could affect PEth quantification (e.g. spot volume, partial volume, hematocrit).

Laboratory #3

Presenting laboratory address and contactMedizinisches Labor Bremen GmbH
Dr. Sebastian Sahler
Haferwende 12
28213 Bremen
CountryGermany
Name of the presenterSebastian Sahler
Email address of the presentersebastian.sahler ( @ ) mlhb.de
Applied Matrices and sampling devicesEDTA/heparine whole blood
For what purposes does your laboratory analyze PEth?We receive most samples from other laboratorys, so the specific purpose is usually not disclosed.

Laboratory #4

Presenting laboratory address and contactFTC München GmbH
Bayerstraße 53
80335 München
CountryGermany
Name of the presenterJosefine Herzog
Email address of the presenterj.herzog ( @ ) ftc-muenchen.de
Applied Matrices and sampling devices20 µL Dried blood samples collected on Whatman 903 purchased from Ahlstrom-Munksjö
For what purposes does your laboratory analyze PEth?traffic medicine, family law, probation control, occupational medicine
Additional comments which you would like to share regarding your upcoming presentationPEth analysis in Germany
(e.g. Standard, collection, ng/mL or µmol/L)

Laboratory #5

Presenting laboratory address and contactLaboratorija 1, UAB
Pamėnkalnio str. 36-2
Vilnius
info ( @ ) lifelab1.com
CountryLithuania
Name of the presenterŽydrūnas Stanius
Email address of the presenterzydrunas ( @ ) lifelab1.com
Applied Matrices and sampling devicesLifelab1 focuses only on dried blood analysis; we are using blood collection cards suitable for automated testing.
For what purposes does your laboratory analyze PEth?For addictive disorders.
Additional comments which you would like to share regarding your upcoming presentationWe would share our experience validating of PEth method under ISO17025 requirements.

Laboratory #6

Presenting laboratory address and contactUniversity of Turin, Pietro Giuria 7, TO
in collaboration with
Centro Regionale Antidoping A. Bertinaria, Orbassano, TO
info ( @ ) antidoping.piemonte.it
CountryItaly
Name of the presenterChristina Ververi
Email address of the presenterchristinavr7 ( @ ) gmail.com
For what purposes does your laboratory analyze PEth?Our proposal is to research a new alcohol biomarker which concerns a period of time that other biomarkers do not cover or in cases that we want to detect a longer period (e.g. months) of abuse in absence of other matrixes.
Additional comments which you would like to share regarding your upcoming presentation (private or publicly)We started with DBS microsampling technique researching NPS in blood, but because of real cases of death where hair matrix was absent and we had to detect alcohol abuse, we decided to focus on this specific alcohol biomarker and develop an extraction procedure.

Laboratory #7

Presenting laboratory address and contactLaboratory of Toxicology
Faculty of Pharmaceutical Sciences (Block A – 4th floor), Ghent University
Ottergemsesteenweg 460, B-9000 Ghent, Belgium
Tel: +32 (0)9 264 81 21
Email: Christophe.stove ( @ ) ugent.be/katleen.vanuytfanghe ( @ ) ugent.be
CountryBelgium 
Name of the presenterKatleen Van Uytfanghe 
Email address of the presenterkatleen.vanuytfanghe ( @ ) ugent.be 
Applied Matrices and sampling devices• Whole blood, EDTA – from which a dried blood sample is generated in the laboratory upon arrival using 10 μL volumetric absorptive microsampling (VAMS) devices (Mitra®, Neoteryx)

• Dried blood samples using 10 μL volumetric absorptive microsampling (VAMS) devices (Mitra®, Neoteryx)
 
For what purposes does your laboratory analyze PEth?• Forensic case work
• Drivers’ license regranting
• Monitoring of transplant patients
 
Additional comments which you would like to share regarding your upcoming presentationThe presentation will focus on how the results are interpreted, including the follow-up strategy we developed (see DOI: 10.1111/add.15811) and the combined interpretation of PEth/hair EtG. 

Laboratory #8

Presenting laboratory address and contactToxicological Centre – University of Antwerp

Campus Drie Eiken, Building S – Room S.551
Universiteitsplein 1
2610 Wilrijk, België
CountryBelgium
Name of the presenterCatalina Dumitrascu
Email address of the presentercatalina.dumitrascu ( @ ) uantwerpen.be
Applied Matrices and sampling deviceswhole blood
For what purposes does your laboratory analyze PEth?alcohol related traffic convictions

Laboratory #9

Presenting laboratory address and contactLaboratory of Toxicology – CHU Lille
Bd du Professeur Jules Leclercq
CS 70 001
59037 LILLE Cedex
https://biologiepathologie.chu-lille.fr/institutbiochimie/1149226.php
CountryFrance
Name of the presenterFlorian Hakim
Email address of the presenterFlorian.hakim ( @ ) chu-lille.fr
Applied Matrices and sampling devices10 µL DBS samples on Wattman 903™ cards obtained from peripheral whole blood sampled from citrated blood (or fluoride, EDTA and heparin) tubes

10 µL DBS using HemaXis DB 10™

10 µL DBS obtained using Neoterix Mitra™
For what purposes does your laboratory analyze PEth?Clinical toxicology
– Liver transplantation (pre and post liver transplantation)
– Addictology (withdrawal, abstinence…)
– Obstetrics (prevention of alcohol use during pregnancy, Fetal Alcohol Spectrum Disorder screening, sudden unexpected infant death …)
-Various differential diagnosis (NASH, pseudo-Cushing’s Syndrome…)

Forensic toxicology
– Road accidents,
– Offenses and crime cases
– Post-mortem
Additional comments which you would like to share regarding your upcoming presentationOur method simultaneously include ethyl glucuronide for a better screening of recent (< 48h) alcohol consumption (> 20 g).

Laboratory #10

Presenting laboratory address and contactForensic Toxicology and Chemistry Unit, CURML,
Geneva University Hospitals
1, rue Michel Servet
1211 Geneva
CountrySwitzerland
Name of the presenterJulien Déglon
Email address of the presenterjulien.deglon ( @ ) hcuge.ch
Applied Matrices and sampling devicesDBS samples obtained using HemaXis DB10
For what purposes does your laboratory analyze PEth?Traffic medicine, organ transplantation check, family law
Additional comments which you would like to share regarding your upcoming presentationconflict of interest:
Julien Deglon is co-founder of DBS System SA that commercializes HemaXis product

Laboratory #11

Presenting laboratory address and contactInstitute of Forensic Medicine
University of Bern
CountrySwitzerland
Name of the presenterWolfgang Weinmann
Email address of the presenterwolfgang.weinmann ( @ ) irm.unibe.ch
Applied Matrices and sampling devicesMatrix: DBS using:   DBSv (a card for self sampling with limited adsorption field for sampling of 20 microliter of blood)   standard DBS cards – automated (DBS-MS 500, CAMAG) or “manual” liquid extraction.
For what purposes does your laboratory analyze PEth?Forensic and clinical cases, studies with volunteers
Additional comments which you would like to share regarding your upcoming presentationDBSv Sampling cards are a product of Protzek, Lörrach (Germany).