Such decrease remained 2 hr after the administration (Table 4). In locomotor activity, methamphetamine treated group showed approximately 4.2 times increase compared to the negative control treated group. Change of body weight following the treatments with JWH-081 and JWH-210 in mic
Taken together these data further confirmed the structure elucidation of B16. The precursor ion m/z 276 (B1) detected, which was 74 Da lower than that for the 4F-MDMB-BINACA ester hydrolysis metabolite (B22), indicated N-dealkylation of B22. The precursor ion m/z 348 and product ion detected at m/z 217 (B2) identified was 2 Da less than the 4F-MDMB-BINACA ester hydrolysis metabolite (B22), indicating oxidative defluorination (loss of fluorine with addition of hydroxy 4F ADB group
Fig. 2.
Our findings revealed that both victims consumed large amounts of alcohol preceding their deaths (blood alcohol concentrations (BAC) were 2.11 and 2.49 g/L, respectively). Forensic autopsy of both victims was performed four days after the time of death following the Recommendation No.R (99)3 of the Council of Europe on medico-legal autopsies. Elegans demonstrated the ability to form all of the in-vivo metabolites and has the potential to be used as a complementary model to predict and characterize human metabolites, as well as identifying possible drug toxicities for emerging SCBs. Thus, identification of the relevant urinary markers was based primarily upon the prevalence of the in-vivo metabolites instead of the metabolites ranking that was based upon % peak area abundance ratio. Moreover, genetic makeup, physiological conditions (age, gender 4F ADB and ethnicity), environmental influences (diet) and pathological factors (liver diseases, diabetes, and obesity) would further complicate the metabolism of drugs. It should be noted that % peak area abundance ratios do not necessarily reflect absolute concentrations due to differences in ionization capacity and matrix effects bias for each metabolite.
Data concerning the combined effects of SCRAs and other substances are highly limited, which renders forensic evaluation of possible overdose cases difficult . The threshold SCRA concentration for fatal overdose can be estimated ng/mL level (0.37–4.1 ng/mL according to the reported cases) in cases in which 1.5–2.5 g/L of ethanol is present in the blood. The victims were brothers who were both found deceased after consuming 4F-MDMB-BINACA and ethanol. These confusing shorter names were not scientifically adopted but were used by websites selling the drugs to the public. Monitoring metabolism of synthetic cannabinoid 4F-MDMB-BINACA via high-resolution mass spectrometry assessed in cultured hepatoma cell line, fungus, liver microsomes and confirmed using urine samples. This article does not contain any studies with human participants or animals performed by any of the author
LC-QTOF-MS represents a significant advancement in the field of drug detection, offering higher sensitivity, specificity, and a broader spectrum of detectable substances. Despite all negative results in the point-of-care test for recreational drugs, the liquid chromatography-quadrupole time-of-flight mass spectrometry (LC-QTOF-MS) analysis showed that the liquid of the e-cigarette contained ADB-BUTINACA, a synthetic cannabinoid. We report a 27-year-old man who was admitted to the emergency room because of sudden 4F ADB headache, nausea, vertigo, red eyes and palpitations. Synthetic cannabinoids are gaining popularity globally and detection is not commonly available.
Data availability
When clinical presentation and/or initial DOA testing results are inconclusive, additional testing with LC-QTOF-MS can be valuable and is recommended. SCRAs and other NPS may not be detected by point-of-care DOA tests. In this case, the point-of-care DOA urine screening was not able to detect the synthetic cannabinoid ADB-BUTINAC
This might be due to the low activity of numerous metabolizing enzymes resulting in lower drug biotransformation . HepG2 model detected the major ester hydrolysis metabolite of 4F-MDMB-BINACA in abundance but the rest of the metabolites were found in a small amount. Elegans and HLM models detected all of the in-vivo metabolites (100%), whilst HepG2 cells detected 7 out of the 8 in-vivo metabolites (87.5%). Hence, structural elucidation could not be confirmed unless a reference standard is made availabl
Similarly, precursor ion identified at m/z 380 (B19/B21, B23/B25) was 16 Da higher than the 4F-MDMB-BINACA, indicating monohydroxylation at the butyl side chain (B19/B21) and indazole (B23/B25) moieties with product ions m/z 145 and 161, respectively. Metabolites identified at m/z 366 (B8, B9, B13), which was 16 Da higher than the 4F-MDMB-BINACA ester hydrolysis metabolite (B22), confirmed monohydroxylation upon ester hydrolysis. Death involving these drugs have been reported [5,6,7,8,9], and this raises public health and social concerns. Due to their similar physiological effects to the principal psychoactive component of cannabis, Δ9-tetrahydrocannabinol (THC), SCBs are gaining popularity and are often abused as recreational drugs. The fact that similar 4F-MDMB-BINACA and ethanol concentrations were detected in the postmortem blood samples of both victims suggests that both substances played a role in the fatal outcom
Taken together these data further confirmed the structure elucidation of B16. The precursor ion m/z 276 (B1) detected, which was 74 Da lower than that for the 4F-MDMB-BINACA ester hydrolysis metabolite (B22), indicated N-dealkylation of B22. The precursor ion m/z 348 and product ion detected at m/z 217 (B2) identified was 2 Da less than the 4F-MDMB-BINACA ester hydrolysis metabolite (B22), indicating oxidative defluorination (loss of fluorine with addition of hydroxy 4F ADB group
Fig. 2.
Our findings revealed that both victims consumed large amounts of alcohol preceding their deaths (blood alcohol concentrations (BAC) were 2.11 and 2.49 g/L, respectively). Forensic autopsy of both victims was performed four days after the time of death following the Recommendation No.R (99)3 of the Council of Europe on medico-legal autopsies. Elegans demonstrated the ability to form all of the in-vivo metabolites and has the potential to be used as a complementary model to predict and characterize human metabolites, as well as identifying possible drug toxicities for emerging SCBs. Thus, identification of the relevant urinary markers was based primarily upon the prevalence of the in-vivo metabolites instead of the metabolites ranking that was based upon % peak area abundance ratio. Moreover, genetic makeup, physiological conditions (age, gender 4F ADB and ethnicity), environmental influences (diet) and pathological factors (liver diseases, diabetes, and obesity) would further complicate the metabolism of drugs. It should be noted that % peak area abundance ratios do not necessarily reflect absolute concentrations due to differences in ionization capacity and matrix effects bias for each metabolite.
Data concerning the combined effects of SCRAs and other substances are highly limited, which renders forensic evaluation of possible overdose cases difficult . The threshold SCRA concentration for fatal overdose can be estimated ng/mL level (0.37–4.1 ng/mL according to the reported cases) in cases in which 1.5–2.5 g/L of ethanol is present in the blood. The victims were brothers who were both found deceased after consuming 4F-MDMB-BINACA and ethanol. These confusing shorter names were not scientifically adopted but were used by websites selling the drugs to the public. Monitoring metabolism of synthetic cannabinoid 4F-MDMB-BINACA via high-resolution mass spectrometry assessed in cultured hepatoma cell line, fungus, liver microsomes and confirmed using urine samples. This article does not contain any studies with human participants or animals performed by any of the author
LC-QTOF-MS represents a significant advancement in the field of drug detection, offering higher sensitivity, specificity, and a broader spectrum of detectable substances. Despite all negative results in the point-of-care test for recreational drugs, the liquid chromatography-quadrupole time-of-flight mass spectrometry (LC-QTOF-MS) analysis showed that the liquid of the e-cigarette contained ADB-BUTINACA, a synthetic cannabinoid. We report a 27-year-old man who was admitted to the emergency room because of sudden 4F ADB headache, nausea, vertigo, red eyes and palpitations. Synthetic cannabinoids are gaining popularity globally and detection is not commonly available.
Data availability
When clinical presentation and/or initial DOA testing results are inconclusive, additional testing with LC-QTOF-MS can be valuable and is recommended. SCRAs and other NPS may not be detected by point-of-care DOA tests. In this case, the point-of-care DOA urine screening was not able to detect the synthetic cannabinoid ADB-BUTINAC
This might be due to the low activity of numerous metabolizing enzymes resulting in lower drug biotransformation . HepG2 model detected the major ester hydrolysis metabolite of 4F-MDMB-BINACA in abundance but the rest of the metabolites were found in a small amount. Elegans and HLM models detected all of the in-vivo metabolites (100%), whilst HepG2 cells detected 7 out of the 8 in-vivo metabolites (87.5%). Hence, structural elucidation could not be confirmed unless a reference standard is made availabl
Similarly, precursor ion identified at m/z 380 (B19/B21, B23/B25) was 16 Da higher than the 4F-MDMB-BINACA, indicating monohydroxylation at the butyl side chain (B19/B21) and indazole (B23/B25) moieties with product ions m/z 145 and 161, respectively. Metabolites identified at m/z 366 (B8, B9, B13), which was 16 Da higher than the 4F-MDMB-BINACA ester hydrolysis metabolite (B22), confirmed monohydroxylation upon ester hydrolysis. Death involving these drugs have been reported [5,6,7,8,9], and this raises public health and social concerns. Due to their similar physiological effects to the principal psychoactive component of cannabis, Δ9-tetrahydrocannabinol (THC), SCBs are gaining popularity and are often abused as recreational drugs. The fact that similar 4F-MDMB-BINACA and ethanol concentrations were detected in the postmortem blood samples of both victims suggests that both substances played a role in the fatal outcom