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Chronic non-cancer pain, defined by the Center for Disease Control and Prevention (CDC) as lasting beyond three months, significantly affects individuals' quality of life and is often linked to various medical conditions or injuries. Its management is complex. Cannabis, containing the key compounds Delta-9-tetrahydrocannabinol (THC) and cannabidiol (CBD), has garnered interest for its potential in pain management, though it remains controversial due to its psychoactive effects and illegal status in many countries.

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3,4-Methylenedioxymethamphetamine (MDMA) is a synthetic amphetamine derivative with notable psychoactive properties and emerging therapeutic potential, particularly for treating post-traumatic stress disorders (PTSD) and substance use disorders. However, its use remains controversial due to inter-individual variability influenced by both environmental and genetic factors. In this context, pharmacogenomics could play a crucial role in guiding MDMA treatment by identifying individuals with genetic predispositions affecting their response to MDMA.

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Insight into selectivity of photocatalytic methane oxidation to formaldehyde on tungsten trioxide.

Nat Commun

June 2024

Chinese Academy of Science (CAS) Key Laboratory of Nanosystem and Hierarchy Fabrication, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, 100190, Beijing, PR China.

Tungsten trioxide (WO) has been recognized as the most promising photocatalyst for highly selective oxidation of methane (CH) to formaldehyde (HCHO), but the origin of catalytic activity and the reaction manner remain controversial. Here, we take {001} and {110} facets dominated WO as the model photocatalysts. Distinctly, {001} facet can readily achieve 100% selectivity of HCHO via the active site mechanism whereas {110} facet hardly guarantees a high selectivity of HCHO along with many intermediate products via the radical way.

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Purpose Of Review: The worldwide spread of novel psychoactive substances (NPS) in the illicit drug market and their continuous increase in number and type, for the purpose of bypassing controlled substance legislation, represents a continuing challenge for forensic scientists, clinicians and enforcement authorities. We aim to provide information regarding the most urgent harms related to NPS consumption in different world regions and the current state of the art for NPS analysis.

Recent Findings: Unfortunately, the identification of NPS in biological samples is controversial, especially when samples are limited, or the drug is promptly and extensively metabolized.

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Effects of antidepressant and antipsychotic medication on peripheral brain-derived neurotrophic factor concentration: Systematic review and meta-analysis.

Psychiatry Res

July 2024

Inserm U1094, IRD UMR270, Univ. Limoges, CHU Limoges, EpiMaCT - Epidemiology of chronic diseases in tropical zone, Institute of Epidemiology and Tropical Neurology, Omega Health, Limoges, France; Pharmacy Department, University Hospital of Limoges, Avenue Martin Luther King 87000 Limoges, France.

Brain-derived neurotrophic factor (BDNF) is an important regulatory protein in the pathophysiology of psychiatric disorders. Several studies have reported the relationship between peripheral BDNF concentrations and the use of psychoactive drugs. However, the results remain controversial.

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