نتایج جستجو برای: marijuana

تعداد نتایج: 13493  

2011
Cristina B Bares Jorge Delva Andrew Grogan-Kaylor Fernando Andrade

OBJECTIVE: Family involvement and several characteristics of parenting have been suggested to be protective factors for adolescent substance use. Some parenting behaviors may have stronger relationships with adolescent behavior while others may have associations with undesirable behavior among youth. Although it is generally acknowledged that families play an important role in the lives of Chil...

Journal: :Annual Review of Clinical Psychology 2017

Journal: :The Canadian journal of neurological sciences. Le journal canadien des sciences neurologiques 2014
Lady Diana Ladino Lizbeth Hernández-Ronquillo José Francisco Téllez-Zenteno

OBJECTIVE To describe the social, clinical and use-patterns characteristics of medicinal marijuana use among patients with epilepsy (PWEs). METHODS Eighteen PWEs with prescriptions for medicinal marijuana from a Canadian adult-epilepsy clinic were included in this study. RESULTS Eighteen patients had a prescription of medicinal marijuana from a total population of 800 PWEs in our center (2....

Journal: :JAMA 2004
Wilson M Compton Bridget F Grant James D Colliver Meyer D Glantz Frederick S Stinson

CONTEXT Among illicit substance use disorders, marijuana use disorders are the most prevalent in the population. Yet, information about the prevalence of current Diagnostic and Statistical Manual of Mental Disorders, Fourth Edition (DSM-IV) marijuana use disorders and how prevalence has changed is lacking. OBJECTIVE To examine changes in the prevalence of marijuana use, abuse, and dependence ...

Journal: :Pharmacology, biochemistry, and behavior 2002
Robert I Block Daniel S O'Leary Richard D Hichwa Jean C Augustinack Laura L Boles Ponto M M Ghoneim Stephan Arndt Richard R Hurtig G Leonard Watkins James A Hall Peter E Nathan Nancy C Andreasen

It is uncertain whether frequent marijuana use adversely affects human brain function. Using positron emission tomography (PET), memory-related regional cerebral blood flow was compared in frequent marijuana users and nonusing control subjects after 26+ h of monitored abstention. Memory-related blood flow in marijuana users, relative to control subjects, showed decreases in prefrontal cortex, i...

Journal: :Journal of psychoactive drugs 2011
Craig Reinarman Helen Nunberg Fran Lanthier Tom Heddleston

Marijuana is a currently illegal psychoactive drug that many physicians believe has substantial therapeutic uses. The medical literature contains a growing number of studies on cannabinoids as well as case studies and anecdotal reports suggesting therapeutic potential. Fifteen states have passed medical marijuana laws, but little is known about the growing population of patients who use marijua...

Journal: :Neurotoxicology and teratology 1990
S J Astley R E Little

Prenatal marijuana exposure is associated with adverse perinatal effects. Very little is known about the effect of postnatal marijuana exposure on infant development. Postnatal exposure can result from maternal use of marijuana during lactation. Delta-9-tetrahydrocannabinol (THC) transfers and concentrates in the mother's milk and is absorbed and metabolized by the nursing infant. The present s...

2017
Hope M Smiley-McDonald Katherine N Moore David C Heller Jeri D Ropero-Miller Gregory L McIntire Frank N Wallace

This study is a 6-month retrospective analysis of urine drug testing (UDT) data from a pain management population among specimens with clinician-ordered marijuana testing (N = 194 809). Descriptive statistics about the specimen positivity of clinician-ordered marijuana UDT are provided as well as other drug positivity. Specimens from men and adults aged 18 to 34 years had the highest prevalence...

Journal: :Monaldi archives for chest disease = Archivio Monaldi per le malattie del torace 2005
D P Tashkin

In many societies, marijuana is the second most commonly smoked substance after tobacco. While delta9-tetrahydrocannabinol (THC) is unique to marijuana and nicotine to tobacco, the smoke of marijuana, like that of tobacco, consists of a toxic mixture of gases and particulates, many of which are known to be harmful to the lung. Although far fewer marijuana than tobacco cigarettes are generally s...

Journal: :South Dakota medicine : the journal of the South Dakota State Medical Association 2015
Shawn Van Gerpen Tamara Vik Timothy J Soundy

With the recent legalization of recreational marijuana in Colorado, Washington, Alaska, the District of Columbia and legislation pending for both medical and recreational marijuana in several other states, it is important for the facts regarding its potential for serious mental health consequences to be known. Little has been said about the psychiatric risks of this substance, particularly in y...

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