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Changes in Cannabis Potency Over the Last 2 Decades (1995–2014): Analysis of Current Data in the United States
Chemical constituents of marijuana: the complex mixture of natural cannabinoids.
Potency Trends of Δ9‐THC and Other Cannabinoids in Confiscated Cannabis Preparations from 1993 to 2008 *
The data showed an upward trend in the mean Δ9‐tetrahydrocannabinol (Δ9‐THC) content of all confiscated cannabis preparations, which increased from 3.4% in 1993 to 8.8% in 2008, mainly due to the increase in the potency of nondomestic versus domestic samples.
Prevalence of drugs used in cases of alleged sexual assault.
This study indicates that the prevalence of ethanol is very high, followed by cannabinoids, cocaine, benzodiazepines, amphetamines, and GHB in alleged sexual assault cases, and suggests the need to test for a range of drugs in these cases.
GC-MS analysis of the total delta9-THC content of both drug- and fiber-type cannabis seeds.
- S. Ross, Zlatko Mehmedic, T. Murphy, M. Elsohly
- BiologyJournal of analytical toxicology
- 1 November 2000
A GC-MS method was performed to determine the total delta9-THC content in both drug- and fiber-type cannabis seeds, finding that drug-type seeds were found to contain much higher levels than fiber (hemp) seeds, and the bulk of delta9/g is located in the testa, mainly on the outside.
Constituents of Cannabis sativa L. XVII. A review of the natural constituents.
Gene duplication and divergence affecting drug content in Cannabis sativa.
Phylogenetic analysis suggests a history of duplication and divergence affecting drug content, and the diversity of THCA and CBDA synthase sequences observed in the mapping population, the position of enzyme coding loci on the map, and patterns of expression suggest multiple linked loci.
The Maternal Lifestyle Study: drug use by meconium toxicology and maternal self-report.
Accurate identification of prenatal drug exposure is improved withGC/MS confirmation and when the meconium assay is coupled with a maternal hospital interview, however, the use of GC/MS may have different implications for research than for public policy.
Pharmacokinetics and excretion of gamma-hydroxybutyrate (GHB) in healthy subjects.
- R. Brenneisen, M. Elsohly, D. Watson
- Medicine, BiologyJournal of analytical toxicology
- 1 November 2004
The aim of this controlled clinical study was to acquire pharmacokinetic profiles, detection times, and excretion rates in human subjects, and common side-effects were confusion, sleepiness, and dizziness.
Potency trends of delta9-THC and other cannabinoids in confiscated marijuana from 1980-1997.
- M. Elsohly, S. Ross, Zlatko Mehmedic, R. Arafat, B. Yi, B. Banahan
- MedicineJournal of forensic sciences
The analysis of 35,312 cannabis preparations confiscated in the USA over a period of 18 years for delta-9-tetrahydrocannabinol (delta9-THC) and other major cannabinoids is reported, showing that the potency of confiscated marijuana samples has continuously risen, going from 3.1% in 1992 to 4.2% in 1997.