Research at Columbia University's Mailman School of Public Health detected significant levels of metals in the blood and urine of marijuana users, suggesting that marijuana is a source of lead and cadmium exposure. Measurements reported by participants showed higher lead levels in blood and urine among exclusive marijuana users compare...
SourceColumbia University's Mailman School of Public Health·JournalEnvironmental Health Perspectives·DateAug 30, 2023
In a study of primary care patients in a state with legal recreational cannabis use, moderate to severe cannabis use disorder (CUD) was common among those who used cannabis. Nonmedical use was associated with more prevalent CUD, highlighting the need for assessing patient cannabis use and symptoms in medical settings.
SourceJAMA Network·JournalJAMA Network Open·DateAug 29, 2023
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A study by Texas A&M University found that pregaming is linked to unsafe alcohol use and other risky behaviors among college students. Pregaming was associated with a two-day increase in alcohol use frequency and was found to be around 2.5 times more likely to lead to cannabis or other drug use.
SourceTexas A&M University·JournalSubstance Use & Misuse·DateAug 25, 2023
A Rutgers-led study found a clear association between mental health disorders, cannabis use, and cannabis use disorder (CUD) among pregnant and postpartum women in the US. The research highlights specific types of mental health disorders linked to cannabis use and CUD.
SourceRutgers University·JournalDrug and Alcohol Dependence·TypeSurvey·DateAug 25, 2023
Researchers found that young vapers are at risk of respiratory symptoms such as bronchitic symptoms and shortness of breath, even if they or others around them smoke cigarettes or cannabis. The study also highlights the need for regulatory oversight of vaping products.
SourceBMJ Group·JournalThorax·TypeObservational study·DateAug 15, 2023
Apple iPhone 17 Pro
Apple iPhone 17 Pro delivers top performance and advanced cameras for field documentation, data collection, and secure research communications.
A new study by UCLA chemists reveals that many HHC products contain less of the biologically active isomer, which can lead to inconsistent effects. The researchers have developed a method for synthesizing the more active isomer, reducing variability in products.
SourceUniversity of California - Los Angeles·JournalACS Chemical Biology·DateAug 14, 2023
Adults increasingly perceive daily cannabis smoking as safer than tobacco and secondhand smoke exposure, despite existing science suggesting otherwise. This survey study of 5,035 adults found a significant shift in perceptions over four years.
SourceJAMA Network·JournalJAMA Network Open·DateAug 11, 2023
A two-year NIH-funded study led by Penn State associate research professor Ashley Linden-Carmichael examines the next-day effects of heavy drinking on young adults' daily cognitive functioning. The study will collect intensive self-reported data from 250 participants to explore the impact of alcohol use on memory and other cognitive fu...
An Oregon State University study found that young adults not in college became more frequent users of cannabis and met criteria for cannabis use disorder after state legalization. The prevalence of frequent cannabis use increased by 5 percentage points among non-college young adults, while college students saw a smaller increase.
SourceOregon State University·JournalAmerican Journal of Preventive Medicine·TypeData/statistical analysis·DateAug 2, 2023
A new meta-analysis published in Addiction journal found that cannabis legalisation is associated with increased rates of cannabis poisoning. The risk of poisoning was higher among studies focused on children, who are particularly vulnerable to severe toxicity, including coma and neurological effects.
SourceSociety for the Study of Addiction·JournalAddiction·TypeMeta-analysis·DateJul 27, 2023
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A University at Buffalo-led study found that THC-O-acetate produces moderate relaxation, euphoria, and pain relief, but no psychedelic effects similar to LSD or psilocybin mushrooms. The study suggests that people may overreport their experiences due to social media hype and online claims.
SourceUniversity at Buffalo·JournalJournal of Psychoactive Drugs·TypeSurvey·DateJul 11, 2023
Research suggests that consuming THC during pregnancy can alter the placental and fetal epigenome, leading to changes in gene regulation and expression associated with neurobehavioral disorders. The study's findings highlight the need for better understanding of the potential long-term health impacts of prenatal cannabis exposure.
SourceOregon Health & Science University·JournalClinical Epigenetics·DateJul 6, 2023
A UTHealth Houston study found that regular cannabis users are more likely to experience complications before, during, and after surgery. Patients with a cannabis use disorder (CUD) were approximately 20% more likely to suffer significant postoperative complications than those without CUD.
SourceUniversity of Texas Health Science Center at Houston·JournalJAMA Surgery·TypeData/statistical analysis·DateJul 5, 2023
A study by Potnuru et al. found cannabis use disorder associated with modestly increased perioperative morbidity and mortality after major elective surgery. The findings support preoperative screening for cannabis use disorder to inform risk stratification.
A study by Weill Cornell Medicine found that state laws allowing medical cannabis use did not reduce prescriptions for opioids or other therapies for chronic non-cancer pain. The results challenge previous studies suggesting a link between medical cannabis laws and reduced opioid prescribing.
SourceWeill Cornell Medicine·JournalAnnals of Internal Medicine·DateJul 5, 2023
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A study of commercially insured adults with chronic noncancer pain found that state medical cannabis laws did not lead to a reduction in the use of opioid or nonopioid pain treatments. The researchers also suggested slow implementation and reluctance among healthcare leaders may have contributed to these findings.
SourceAmerican College of Physicians·JournalAnnals of Internal Medicine·TypeData/statistical analysis·DateJul 3, 2023
A new study found that young people exposed to adverse childhood experiences between ages 0-12 are at high risk of developing problematic adolescent cannabis use. The research, led by Dr Lindsey Hines, analyzed outcomes for over 5,000 participants and found a strong correlation between ACEs and regular cannabis use in teenage years.
SourceUniversity of Bath·JournalThe Lancet Public Health·TypeObservational study·DateJun 29, 2023
A new study by UNM researchers found that patients who reported feeling 'high' experienced 7.7% greater symptom relief, but also a more than 20% increase in negative side effects. The study suggests that feeling 'high' may be an unavoidable component of using cannabis medicinally.
SourceUniversity of New Mexico·JournalFrontiers in Pharmacology·TypeObservational study·DateJun 21, 2023
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A large Danish study suggests that cannabis use disorder is associated with an increased risk of developing depression and bipolar disorder. The research analyzed data from over six million individuals and found a two-to-three-times higher risk of developing bipolar disorder in both men and women.
SourceAarhus University·JournalJAMA Psychiatry·TypeData/statistical analysis·DateJun 15, 2023
Research at Columbia University Mailman School of Public Health found a rise in binge drinking among people aged 31 and over in US states with recreational cannabis laws. Binge drinking declined among younger age groups, including those aged 12-20 and 21-30.
SourceColumbia University's Mailman School of Public Health·JournalInternational Journal of Drug Policy·DateJun 15, 2023
A study found that harm reduction treatment reduced substance use, including cannabis and polysubstance use, among people experiencing homelessness. Participants in the treatment group used cannabis 41% fewer days than the control group. The approach led to improved quality of life and basic needs, making it a sustainable option.
SourceWashington State University·JournalJournal of Addiction Medicine·DateJun 14, 2023
A Phase 2a clinical trial found that AEFO117 significantly reduced the effects of cannabis in daily smokers and decreased both positive mood effects and decision to use cannabis. The drug, developed by Aelis Farma, appears to counteract the high associated with THC without disrupting physiological and behavioral functions.
SourceColumbia University Irving Medical Center·JournalNature Medicine·TypeRandomized controlled/clinical trial·DateJun 8, 2023
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Researchers have uncovered a possible explanation for why frequent cannabis users are leaner and less prone to diabetes than non-users. The study found that adolescent exposure to low-dose THC disrupts energy balance and adipose organ homeostasis in adulthood, leading to reduced fat mass and increased lean mass.
SourceUniversity of California - Irvine·JournalCell Metabolism·DateJun 1, 2023
A study of 6.6 million individuals found a significant association between cannabis use disorder and an increased risk of developing bipolar disorder and unipolar depression. The findings may inform policies regarding cannabis use control.
Researchers from Mount Sinai Health System will present studies on pediatric pulmonary vascular disease, asthma, and sleep disorders. The findings focus on prevalence of pulmonary hypertension in children with severe obstructive sleep apnea and associations between diet and lung function decline.
SourceThe Mount Sinai Hospital / Mount Sinai School of Medicine·DateMay 23, 2023
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A study by NIST and University of Colorado Boulder collected breath samples from participants before and after smoking high-THC cannabis, revealing that distinguishing between recent use and past use remains challenging. The research aimed to develop a reproducible protocol for breath measurements, which will help answer key questions ...
SourceNational Institute of Standards and Technology (NIST)·JournalJournal of Breath Research·TypeExperimental study·DateMay 22, 2023
A new national study of over 50,000 US adolescents reveals a strong association between vaping nicotine and increased likelihood of high-level cannabis usage and binge drinking. The findings highlight the need for sustained interventions to address co-occurring substance use among young people.
SourceTaylor & Francis Group·JournalSubstance Use & Misuse·TypeObservational study·DateMay 18, 2023
Researchers found that conveying simple, scientific facts about THC's harm to a fetus reduced intentions to use cannabis while pregnant. Short and simple communications designed to increase media literacy also had an effect.
SourceWashington State University·JournalPsychology of Addictive Behaviors·TypeSurvey·DateMay 16, 2023
Research found that occasional cannabis use during early pregnancy can significantly reduce birth weight, even if continued use is not observed. Continued exposure results in largest deficiencies, with newborns exposed to marijuana throughout gestation being nearly 200g lighter and having smaller head circumferences.
SourceFrontiers·JournalFrontiers in Pediatrics·TypeObservational study·DateMay 16, 2023
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Patients using medical cannabis reported sustained improvements in health-related quality of life in the study. Adverse events were common but rarely serious, highlighting the need for caution when prescribing medical cannabis.
SourceJAMA Network·JournalJAMA Network Open·DateMay 9, 2023
A Columbia University study found that casual cannabis use by adolescents raises the risk of depression, suicidality, and problem behaviors. Nondisordered cannabis users were 2-2.5 times more likely to have adverse mental health outcomes and behavioral problems compared to teens who didn’t use cannabis.
SourceColumbia University Irving Medical Center·JournalJAMA·TypeSystematic review·DateMay 6, 2023
A recent NIH study reveals that young men with cannabis use disorder are at a higher risk of developing schizophrenia. The study analyzed health records data from over 6 million people in Denmark and found that as many as 30% of schizophrenia cases among young men aged 21-30 might have been prevented by averting cannabis use disorder.
SourceNIH/National Institute on Drug Abuse·JournalPsychological Medicine·DateMay 4, 2023
A multicentre registry study found that medicinal cannabis can safely relieve cancer pain while reducing the total number of medications and opioids taken. Products with an equal balance of THC and CBD were particularly effective in reducing pain intensity and symptoms.
SourceBMJ Group·JournalBMJ Supportive & Palliative Care·TypeObservational study·DateMay 2, 2023
Aranet4 Home CO2 Monitor
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A new study found that cannabis use by cancer patients leads to reduced pain levels, improved sleep quality, and enhanced cognitive function. After two weeks of sustained use, patients reported better thinking clarity and objective measures of cognition also showed improvements.
SourceUniversity of Colorado at Boulder·JournalExploration of Medicine·TypeObservational study·DateMay 1, 2023
A Brazilian study found that prenatal exposure to cannabinoids increases the risk of sudden infant death syndrome, breathing difficulties, and impaired control of breathing. The study suggests that consumption of cannabis or derivatives during pregnancy can have severe effects on the fetus's neural and physiological functions.
SourceFundação de Amparo à Pesquisa do Estado de São Paulo·JournalBritish Journal of Pharmacology·DateApr 25, 2023
A new study on nematode worms reveals that they react to cannabinoids in the same way as humans, increasing hunger for favorite foods and decreasing hunger for non-favored foods. The discovery emphasizes the commonality of cannabinoid effects across species.
SourceCell Press·JournalCurrent Biology·TypeExperimental study·DateApr 20, 2023
A recent study found a significant rise in cannabis exposures in suspected suicide attempts, with the majority involving other substances. The data highlights the need for increased mental health services and awareness about the risks of cannabis use, particularly among youth.
SourceWashington State University·JournalJAMA Network Open·DateApr 19, 2023
A new Twitter analysis reveals that medical dramas like New Amsterdam, Chicago Med, and Grey's Anatomy influenced hundreds of people's thoughts on vaping dangers. The study found that nearly half the tweets commented on the realism of the storylines, with some even expressing intention to quit vaping.
Apple iPad Pro 11-inch (M4)
Apple iPad Pro 11-inch (M4) runs demanding GIS, imaging, and annotation workflows on the go for surveys, briefings, and lab notebooks.
A study in Auckland, New Zealand has detected methamphetamine and other substances in the air for the first time in Oceania. The largest concentration of methamphetamine was found to be 104 picograms per cubic meter, highlighting the need for better air quality monitoring.
SourceUniversity of Auckland·JournalAtmospheric Pollution Research·TypeExperimental study·DateApr 13, 2023
A recent study found that most retail cannabis products in Colorado have lower THC levels than reported on the label, affecting up to 70% of tested samples. The discrepancy may be due to various factors, including production methods and testing protocols.
A new pesticide exposure test has been developed to help protect the health and safety of agricultural workers, particularly those in the emerging cannabis industry. The test uses a bio solid-phase microextraction method that can detect ultra-trace levels of pesticide residues in human blood plasma.
SourceUniversity of Toledo·JournalAnalytical and Bioanalytical Chemistry·TypeExperimental study·DateApr 6, 2023
A new study from the University of Illinois Chicago found a substantial increase in crash fatalities in four states with legalized recreational cannabis, with an average 10% increase in motor vehicle accident deaths. The study suggests that investing in policies and public health initiatives may mitigate this harm.
SourceUniversity of Illinois Chicago·JournalSocial Science & Medicine·TypeData/statistical analysis·DateMar 27, 2023
Sony Alpha a7 IV (Body Only)
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Researchers at Rutgers University propose a new approach to accurately diagnosing cannabis use disorder, particularly for individuals who use cannabis for therapeutic purposes. The current diagnostic manual may misdiagnose these individuals due to the rapid increase in state-level legalization of medical marijuana.
SourceRutgers University·JournalJAMA Psychiatry·TypeData/statistical analysis·DateMar 27, 2023
Researchers at Tel Aviv University found that dedicated hyperbaric oxygen therapy is more effective in reducing pain and healing patients with fibromyalgia caused by traumatic brain injury. The treatment resulted in significant improvements in 2 out of 5 patients, including improved pain threshold tests and quality of life indicators.
Researchers found that clinicians ordered more frequent newborn drug tests for Black newborns after recreational cannabis legalization, highlighting concerns about structural racism and disproportionate testing. The study calls for further exploration of how institutional racism affects healthcare outcomes for Black families.
SourceJAMA Network·JournalJAMA Network Open·DateMar 8, 2023
A recent study published in JAMA Network Open found that racial inequities in newborn drug testing rates remained similar after recreational cannabis legalization in Michigan. The study analyzed data from over 26,000 births between 2014-2020 and found that Black newborns were more likely to receive a drug test than white newborns. Impl...
SourceMichigan Medicine - University of Michigan·JournalJAMA Network Open·DateMar 8, 2023
A study of over 1,300 children aged 9-13 found a significant increase in substance use when combining hair analysis with survey results, nearly doubling the estimated number of child drug users. This suggests that hair analysis is a more accurate method for assessing adolescent substance abuse than self-reporting alone.
SourceTaylor & Francis Group·JournalThe American Journal of Drug and Alcohol Abuse·TypeObservational study·DateMar 6, 2023
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Researchers have found a significant link between frequent marijuana use and an increased risk of coronary artery disease (CAD), with daily cannabis users being about one-third more likely to develop the condition. The study used data from 175,000 people and suggested that cannabis use disorder is associated with a higher risk of CAD.
A recent study published in eClinical Medicine analyzed data from over 210,000 adult patients undergoing non-cardiac surgery in Boston between 2008 and 2020. The researchers found that cannabis users had a higher complexity of co-existing conditions, including mood disorders and substance use disorders, compared to non-users. Patients ...
SourceBeth Israel Deaconess Medical Center·JournalThe Lancet·DateFeb 24, 2023
A recent study found that 27% of twelfth graders in medical marijuana states reported vaping cannabis, compared to 19% in states where all adult use is prohibited. The researchers suspect that the context of medical cannabis and availability may contribute to the higher rates of teen vaping.
SourceWashington State University·JournalDrug and Alcohol Dependence Reports·DateFeb 9, 2023
Research suggests that using cannabis in the first six to 14 weeks of pregnancy is associated with poor fetal growth and an increased risk of developing high blood pressure during pregnancy. The study analyzed urine samples from over 9,200 participants and found a significant link between cannabis use and adverse placental function.
SourceSociety for Maternal-Fetal Medicine·DateFeb 9, 2023
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A new WVU study found nearly one in eight West Virginia infants had in utero exposure to opioids, stimulants, and/or cannabis between 2020 and 2022. The study showed a 40% increased risk of preterm birth among infants exposed to stimulants alone and a 70% increase with concurrent stimulant and cannabis exposures.
SourceWest Virginia University·JournalThe Journal of Pediatrics·DateFeb 7, 2023
A new study by UCL and King's College London researchers found that vaporized cannabis has the same short-term effects on adolescents (16-17 years old) as on adults (26-29 years old), regardless of CBD levels. The study also showed that CBD does not reduce the psychoactive effects of THC in cannabis.
SourceUniversity College London·JournalAddiction·TypeRandomized controlled/clinical trial·DateFeb 7, 2023
Substance use decreased among youths and young adults between 2019 and 2020, except for tobacco use reductions. Cannabis use increased among adults aged 25 and older during the pandemic. These findings should be interpreted with caution due to differences in data collection methods.
SourceJAMA Network·JournalJAMA Network Open·DateJan 31, 2023
A study found that receiving medical cannabis for thirty days or more can lead to a significant reduction in prescription opioid dosages among patients on long-term opioid therapy. Patients who were on higher baseline dosages of prescription opioids experienced larger reductions in opioid dosages.
SourceCUNY Graduate School of Public Health and Health Policy·JournalJAMA Network Open·DateJan 31, 2023
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A study of 4,000 twins found no link between cannabis legalization and increases in cognitive, psychological, social, relationship or financial problems. Twins in states where cannabis is legal showed fewer symptoms of alcohol use disorder.
SourceUniversity of Colorado at Boulder·JournalPsychological Medicine·TypeObservational study·DateJan 26, 2023
A study of commercial and Medicare Advantage claims data from 2003 to 2017 found no statistically significant difference in psychosis-related diagnoses or prescribed antipsychotics between states with medical or recreational cannabis policies and those without. The findings suggest continued evaluation of psychosis as a potential conse...
SourceJAMA Network·JournalJAMA Network Open·DateJan 25, 2023
The American Thoracic Society has issued new guidelines to help prevent future lung injuries from vaping. The report highlights the need for more research on the mechanisms of EVALI, as well as safer standards for e-liquid formulations.
SourceUniversity of Maryland School of Medicine·JournalAnnals of the American Thoracic Society·TypeLiterature review·DateJan 24, 2023
A recent study found that bisexual individuals use cannabis more frequently than their straight counterparts, with a greater likelihood of using it to cope with mental health issues. The researchers also discovered that bisexual people are more likely to experience negative mental health outcomes, including depression and social anxiety.
SourceWashington State University·JournalCannabis and Cannabinoid Research·DateJan 23, 2023
A study by University of Pittsburgh and Cornell University scientists found that states with recreational cannabis laws saw a significant reduction in pharmacy-based codeine distribution. This reduction is promising from a public health perspective, as prescription opioid misuse contributes to thousands of overdose deaths annually.
SourceUniversity of Pittsburgh·JournalHealth Economics·DateJan 19, 2023
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