Soybean cultivation has expanded among farmers in Benin, yet yields remain below potential, mainly due to declining soil fertility and poor seed quality. This study evaluated the effects of organo-mineral microdose fertilization and rhizobium inoculation on the agronomic performance of three soybean varieties in the sub-humid zone of Northern Benin over two consecutive growing seasons. A...
Background: Depressive disorders affect approximately 280 million globally, with many finding treatments ineffective or limited by side effects. Growing evidence suggests that psychedelic therapies may help alleviate depressive symptoms. Among these, lysergic acid diethylamide (LSD) microdosing shows promise for major depressive disorder (MDD). However, research on LSD microdosing in clinical...
Expectations can impact antidepressant treatment and psychedelic therapy, often enhancing placebo effects and influencing outcomes. However, research in this context is lacking. Our study explored the expectations of participants with major depressive disorder (MDD) before microdosing lysergic acid diethylamide (LSD) in an open-label trial. Twenty-three individuals with MDD completed a...
Post-detoxification phases of methamphetamine dependence are often characterized by neurophysiological instability, including tremors, insomnia, and anxiety, due to suppressed GABAergic activity and hyperdopaminergic rebound. Traditional Filipino distilled spirit, álak or lambanog, contains trace levels of ethanol and minor fusel alcohols which may exert mild GABA-A receptor agonism when...
Introduction High attrition in drug development remains a significant challenge for research and development organisations worldwide. Most novel drug compounds fail at an early stage, often without knowledge of target engagement or molecular efficacy at diseased tissue level. Phase 0 trials provide an opportunity to provide mechanistic data in a small number of patients at the earliest stage of...
The impact of climate change, soil fertility depletion, and land degradation has necessitated the continuous use of fertilizer to enhance crop productivity. However, the high cost of fertilizer, coupled with improper use of fertilizer leading to environmental issues, has encouraged efficient use of fertilizer. This study draws on farm-level data to assess the link between the implementation of...
The analyses described in this SAP will assess the efficacy and safety of LSD (MB-22001) in comparison with active placebo (caffeine). The analysis described cover those for the primary, secondary and safety endpoints described in the Protocol.
Background: Major depressive disorder (MDD) is the leading cause of disability worldwide, affecting roughly 322 million people. Recently, doses of psilocybin have shown promise in treating mood disorders, sparking interest in other dosing practices. According to anecdotal reports and observational studies, microdosing psilocybin yields benefits to mental health; however, rigorously controlled...
Major depressive disorder (MDD) affects approximately 5 % of the global population. Classic psychedelics have shown promise in treating various mental health disorders. This study evaluated the feasibility and tolerability of an 8-week regimen of microdosed lysergic acid diethylamide (LSD) as a treatment for major depressive disorder in an open-label phase 2A trial (LSDDEP1). Nineteen...
BackgroundTaking very small doses of psychedelics (LSD, truffles) over an extended period became prevalent in Western societies for its alleged cognitive benefit, including enhanced creativity. However, in the absence of robust, double-blind-controlled quantitative studies, such claims remain anecdotal.MethodsHere we present results from 3 double-blind placebo-controlled longitudinal trials...
Whole-body dynamic (WB4D) positron emission tomography (PET) imaging data using radiolabeled analogs of drugs are mostly analyzed using descriptive approaches, with no relationship to traditional pharmacokinetic studies based on blood sampling. Here, we build a pharmacokinetic (PK) model from WB4D PET data obtained using a microdose of radiolabeled glyburide ([11C]glyburide) in humans, aiming...
The emergence of microdosing introduced a novel approach to consuming classic psychedelic substances, such as LSD (lysergic acid diethylamide) and psilocybin mushrooms, in ways previously unconventional. Whereas traditional illicit substance use often seeks euphoric experiences, microdosing deliberately avoids such effects in favor of perceived self-enhancing benefits. Increasingly common in...
ObjectiveMicrodosing psychedelics has been widely reported to enhance focus and problem-solving, sparking interest in its potential to treat attentional disorders such as ADHD. However, existing studies largely rely on anecdotal evidence and lack adequate placebo control.MethodsThis study contributes to the literature by examining the longitudinal effects of microdosing psilocybin truffles in...
method was developed for the analysis of serotonin in Caenorhabditis elegans. Samples were subjected to solvent-solvent extraction from basic conditions into n-heptanol. The serotonin was then back-extracted into acetic acid, the solution diluted into basic buffer, and labelled with 3-(2-furoyl) quinoline-2-carboxaldehyde in the presence of cyanide. The sample was analyzed by capillary...
Repeated self-administration of small doses of psychedelics, known as microdosing, has been associated with perceived improvements in psychological functioning. However, few studies have examined effects at the daily level. Drawing on data from a naturalistic, prospective, international survey of adults who microdose (N = 1435), we assessed self-reported within-person changes between...
Surgical endoscopyOctober 1, 2025Ryan C Broderick, Graham J Spurzem, Ana Garcia Cabrera et al.
Fluorescence cholangiography (FC) with indocyanine green (ICG) enables real-time intraoperative visualization of extrahepatic biliary anatomy during laparoscopic cholecystectomy (LC). There is no consensus on the optimal ICG dose or timing of administration for LC. The goal of this study was to implement a simple intraoperative low-dose ("microdose") ICG protocol that facilitates non-inferior...
Psychedelics have recently grown in scientific interest, among this, there have been promising findings regarding its potential to treat a range of health problems (such as depression, anxiety, PTSD). Despite the growing research interest in psychedelics, there is little research investigating the effects of microdoses: tiny doses that produce sub-hallucinogenic effects. Additionally, there is...
Schizophrenia is a highly polygenic disease, and several genetic variants associated with the disease converge on altered synaptic homeostasis. In particular, the gene encoding complement component 4 (C4) showed the strongest association with schizophrenia, and this protein is involved in complement-dependent and microglia-mediated synaptic pruning. As a matter of fact, microglia are overactive...
Background: Preliminary research indicates that psychedelics may hold promise as analgesic agents. This study investigated the potential analgesic effects of lysergic acid diethylamide (LSD) microdosing on pain tolerance and subjective pain perception in healthy participants. Methods: Utilizing a randomised, placebo-controlled design, participants received 15 μg of LSD or placebo over four...
High Resolution Image Download MS PowerPoint Slide Microdosing, the prolonged ingestion of psychedelics at subhallucinogenic doses, has gained popularity for its perceived cognitive and emotional benefits. Psychedelics have high affinity for 5-HT 2B receptors, a receptor known to cause human heart disease with strong chronic activation. We investigated the effects of microdosed psychedelics on...