W J Schirmer

ORCID: 0009-0004-5579-2217
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About
Contact & Profiles
Research Areas
  • Cancer, Hypoxia, and Metabolism
  • Forensic Toxicology and Drug Analysis
  • Cannabis and Cannabinoid Research
  • Alcohol Consumption and Health Effects
  • Neuroendocrine Tumor Research Advances
  • Psychedelics and Drug Studies
  • Biochemical Acid Research Studies
  • Pancreatic and Hepatic Oncology Research
  • Medical History and Innovations
  • Pleural and Pulmonary Diseases
  • Esophageal and GI Pathology
  • Cardiac and Coronary Surgery Techniques
  • Complement system in diseases
  • Hemoglobin structure and function
  • Cancer-related Molecular Pathways
  • Trauma, Hemostasis, Coagulopathy, Resuscitation
  • Neuroblastoma Research and Treatments
  • Hemodynamic Monitoring and Therapy
  • History of Medical Practice
  • DNA Repair Mechanisms
  • Mitochondrial Function and Pathology
  • Dysphagia Assessment and Management
  • Trauma Management and Diagnosis
  • Folate and B Vitamins Research
  • Biochemical and Molecular Research

University of Bern
2023-2025

Universitat de Barcelona
1998

Wayne State University
1998

The Ohio State University
1995-1998

Case Western Reserve University
1988-1991

University Hospitals of Cleveland
1991

United States Department of Veterans Affairs
1989

Hexahydrocannabinol (HHC) is a cannabinoid that has been known since 1940 but only recently found its way into recreational use as psychoactive drug. HHC used legal alternative to tetrahydrocannabinol (THC) in many countries, first countries already placed it under their narcotic substances law. Our aim was evaluate reliable analytical method for the proof of consumption by LC-MS/MS and GC-MS. We identified two epimers metabolites after volunteers (inhalation vaporizer oral intake)....

10.1177/14690667231200139 article EN European Journal of Mass Spectrometry 2023-09-14

Abstract After the Swiss ban of hexahydrocannabinol (HHC) in March 2023, other semisynthetic dibenzopyran cannabinoids emerged on gray market. Hexahydrocannabiphorol (HHCP) was most prominent them due to its potent cannabimimetic effects, as anecdotal reports from recreational users suggest. In October a class wide introduced Switzerland prevent new similar substances entering drug Various vendors online shops claim that HHCP is made CBD, even though they possess different alkyl chain...

10.1002/dta.3759 article EN cc-by-nc Drug Testing and Analysis 2024-07-01

ABSTRACT Hexahydrocannabiphorol (HHCP) is an emerging semisynthetic cannabinoid, which has been known since 1942 from research of tetrahydrocannabinol (THC) analogs and homologs. After the ban hexahydrocannabinol (HHC) in many European Countries HHCP emerged as a replacement among other similar compounds. First countries already placed under their narcotic substance law. The aim this was to identify human Phase I II metabolites urine after oral consumption. Enzymatic immunoassays samples...

10.1002/dta.3871 article EN Drug Testing and Analysis 2025-02-21

Δ9-Tetrahydrocannabiphorol (Δ9-THCP, THCP) a psychoactive cannabinoid recently found in Cannabis sativa L., is widely used as legal marijuana substitute. THCP encountered sprayed Cannabis, edibles, and vape liquids. The distributors of such products claim that the use originates from natural source. status this substance varies country to country. similar cannabinoids with dibenzoyprane structure have been banned Switzerland since October 2023. A liquid, which contains 90% 10% terpenes...

10.3390/psychoactives3040030 article EN cc-by Psychoactives 2024-10-12

10.1016/0196-0709(91)90127-2 article EN American Journal of Otolaryngology 1991-07-01

HAMPTON, W. W.; TOWNSEND, M. C.; SCHIRMER, J.; HAYORON, D. M.; FRY, L. E. Author Information

10.1097/00132586-199004000-00002 article EN Survey of Anesthesiology 1990-04-01
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