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https://www.readbyqxmd.com/read/28549263/prevalence-reasons-perceived-effects-and-correlates-of-medical-marijuana-use-a-review
#1
REVIEW
Ji-Yeun Park, Li-Tzy Wu
BACKGROUND: The use of marijuana for medical purposes is now legal in some U.S. states and other jurisdictions, such as Canada, and Israel. Despite the widespread legalization of medical marijuana globally, there is limited information on patterns and correlates of medical marijuana use (MMU). We conducted a literature review to assess prevalence, reasons, perceived effects, and correlates of MMU among adolescents and adults. METHODS: We searched peer-reviewed articles in English between January 1996 and August 2016 from several databases (PubMed, Google Scholar, Embase, CINAHL, and PsycINFO) using different combinations of keywords...
May 16, 2017: Drug and Alcohol Dependence
https://www.readbyqxmd.com/read/28549247/individuals-with-clinically-significant-insomnia-symptoms-are-characterised-by-a-negative-sleep-related-expectancy-bias-results-from-a-cognitive-experimental-assessment
#2
Hannah Courtauld, Lies Notebaert, Bronwyn Milkins, Simon D Kyle, Patrick J F Clarke
Cognitive models of insomnia consistently suggest that negative expectations regarding the consequences of poor sleep contribute to the maintenance of insomnia. To date, however, no research has sought to determine whether insomnia is indeed characterised by such a negative sleep-related expectancy bias, using objective cognitive assessment tasks which are more immune to response biases than questionnaire assessments. Therefore, the current study employed a reaction-time task assessing biased expectations among a group with clinically significant insomnia symptoms (n = 30) and a low insomnia symptoms group (n = 40)...
May 17, 2017: Behaviour Research and Therapy
https://www.readbyqxmd.com/read/28549077/clinical-criteria-for-subtyping-parkinson-s-disease-biomarkers-and-longitudinal-progression
#3
Seyed-Mohammad Fereshtehnejad, Yashar Zeighami, Alain Dagher, Ronald B Postuma
Parkinson's disease varies widely in clinical manifestations, course of progression and biomarker profiles from person to person. Identification of distinct Parkinson's disease subtypes is of great priority to illuminate underlying pathophysiology, predict progression and develop more efficient personalized care approaches. There is currently no clear way to define and divide subtypes in Parkinson's disease. Using data from the Parkinson's Progression Markers Initiative, we aimed to identify distinct subgroups via cluster analysis of a comprehensive dataset at baseline (i...
May 25, 2017: Brain: a Journal of Neurology
https://www.readbyqxmd.com/read/28549047/health-related-quality-of-life-and-sleep-disorders-in-patients-with-a-urostomy-is-there-a-relationship
#4
Chie Furukawa, Ikuharu Morioka
PURPOSE: The purpose of this study was to evaluate the relationship between health-related quality of life (HRQOL) and sleep disorders in persons living with a urostomy. DESIGN: A cross-sectional descriptive study. SUBJECTS AND SETTINGS: Eighty-six adults with a urostomy who were cared for in a stoma outpatient clinic of a hospital in Osaka, Japan, for at least 1 month before data collection, and who were attending support group meetings comprised the sample...
May 25, 2017: Journal of Wound, Ostomy, and Continence Nursing
https://www.readbyqxmd.com/read/28548897/evening-light-exposure-to-computer-screens-disrupts-human-sleep-biological-rhythms-and-attention-abilities
#5
A Green, M Cohen-Zion, A Haim, Y Dagan
The use of electronic devices with light-emitting screens has increased exponentially in the last decade. As a result, humans are almost continuously exposed to unintentional artificial light. We explored the independent and combined effects of two aspects of screen illumination, light wavelength, and intensity, on sleep, its biological regulation, and related functional outcomes. The 2 × 2 repeated-measure design included two independent variables: screen light intensity (low ([LI] versus high [HI]) and wavelength (short [SWL] versus long [LWL])...
May 26, 2017: Chronobiology International
https://www.readbyqxmd.com/read/28548869/neurotransmitter-receptor-availability-in-the-rat-brain-is-constant-in-a-24-hour-period
#6
A Oskamp, F Wedekind, T Kroll, D Elmenhorst, A Bauer
Wakefulness and sleep are fundamental characteristics of the brain. We, therefore, hypothesized that transmitter systems contribute to their regulation and will exhibit circadian alterations. We assessed the concentration of various neurotransmitter receptors and transporters including adenosinergic (A1AR, A2AAR, and ENT1), dopaminergic (D1R, D2R, and DAT), and serotonergic (5-HT2AR) target proteins. Adult male Sprague Dawley rats were used and maintained in a 12 h light: 12 h dark cycle (lights on from 07:00 h to 19:00 h)...
May 26, 2017: Chronobiology International
https://www.readbyqxmd.com/read/28548639/rai1%C3%A2-frees-mice-from-the-repression-of-active-wake-behaviors-by-light
#7
Shanaz Diessler, Corinne Kostic, Yvan Arsenijevic, Aki Kawasaki, Paul Franken
Besides its role in vision, light impacts physiology and behavior through circadian and direct (aka 'masking') mechanisms. In Smith-Magenis Syndrome (SMS), the dysregulation of both sleep-wake behavior and melatonin production strongly suggest impaired non-visual light perception. We discovered that mice haploinsufficient for the SMS causal gene, Retinoic acid induced-1 (Rai1), were hypersensitive to light such that light eliminated alert and active-wake behaviors, while leaving time-spent-awake unaffected...
May 26, 2017: ELife
https://www.readbyqxmd.com/read/28548460/internally-generated-hippocampal-sequences-as-a-vantage-point-to-probe-future-oriented-cognition
#8
REVIEW
Giovanni Pezzulo, Caleb Kemere, Matthijs A A van der Meer
Information processing in the rodent hippocampus is fundamentally shaped by internally generated sequences (IGSs), expressed during two different network states: theta sequences, which repeat and reset at the ∼8 Hz theta rhythm associated with active behavior, and punctate sharp wave-ripple (SWR) sequences associated with wakeful rest or slow-wave sleep. A potpourri of diverse functional roles has been proposed for these IGSs, resulting in a fragmented conceptual landscape. Here, we advance a unitary view of IGSs, proposing that they reflect an inferential process that samples a policy from the animal's generative model, supported by hippocampus-specific priors...
May 2017: Annals of the New York Academy of Sciences
https://www.readbyqxmd.com/read/28548389/night-shift-work-is-associated-with-poorer-glycaemic-control-in-patients-with-type-2-diabetes
#9
Areesa Manodpitipong, Sunee Saetung, Hataikarn Nimitphong, Nantaporn Siwasaranond, Thanawat Wongphan, Chotima Sornsiriwong, Pranee Luckanajantachote, Prasitchai Mangjit, Prasit Keesukphan, Stephanie J Crowley, Megan M Hood, Sirimon Reutrakul
The circadian system plays a role in regulating metabolism. Night-shift work, a form of circadian misalignment, is associated with increased type 2 diabetes risk. This study aimed to determine if night-shift workers with type 2 diabetes experience poorer glycaemic control than non-shift workers. Patients with type 2 diabetes (104 unemployed, 85 day workers and 60 night-shift workers) participated. Sleep duration, sleep quality, morningness-eveningness preference, depressive symptoms and dietary intake were assessed using standardized questionnaires...
May 26, 2017: Journal of Sleep Research
https://www.readbyqxmd.com/read/28548308/validation-of-a-french-version-of-the-sleep-condition-indicator-a-clinical-screening-tool-for-insomnia-disorder-according-to-dsm-5-criteria
#10
Sophie Bayard, Cindy Lebrun, Khaalid Hassan Maudarbocus, Vanessa Schellaert, Alicia Joffre, Esther Ferrante, Marie Le Louedec, Alice Cournoulat, Marie-Christine Gely-Nargeot, Annemarie I Luik
Insomnia disorder is frequent in the population, yet there is no French screening instrument available that is based on the updated DSM-5 criteria. We evaluated the validity and reliability of the French version of an insomnia screening instrument based on DSM-5 criteria, the Sleep Condition Indicator, in a population-based sample of adults. A total of 366 community-dwelling participants completed a face-to-face clinical interview to determine insomnia disorder against DSM-5 criteria and several questionnaires including the French Sleep Condition Indicator version...
May 26, 2017: Journal of Sleep Research
https://www.readbyqxmd.com/read/28548303/scalloped-tongue-is-associated-with-nocturnal-intermittent-hypoxia-among-community-dwelling-japanese-the-toon-health-study
#11
Kiyohide Tomooka, Takeshi Tanigawa, Susumu Sakurai, Koutatsu Maruyama, Eri Eguchi, Shinji Nishioka, Noriko Miyoshi, Hiroshi Kakuto, Genki Shimizu, Denichiro Yamaoka, Isao Saito
BACKGROUND: Scalloped tongue is considered as a possible clinical finding of obstructive sleep apnea (OSA). There are few evidence of the association between scalloped tongue and OSA. OBJECTIVE: To examine the association between scalloped tongue and nocturnal intermittent hypoxia (NIH), a surrogate marker of OSA, among a general Japanese population. METHODS: Study participants were 398 men and 732 women aged 30-79 years who participated in the Toon Health Study from 2011 to 2014...
May 26, 2017: Journal of Oral Rehabilitation
https://www.readbyqxmd.com/read/28548301/night-to-night-variability-of-obstructive-sleep-apnea
#12
Anna S Stöberl, Esther I Schwarz, Sarah R Haile, Christopher D Turnbull, Valentina A Rossi, John R Stradling, Malcolm Kohler
One night of a sleep study is the standard for diagnosis and exclusion of obstructive sleep apnea. Single testing requires high sensitivity of the test method and a stable disease of interest to warrant a low rate of false-negative tests. Obstructive sleep apnea is diagnosed and graded by conventional thresholds of apneas and hypopneas per hour of sleep, and treatment is usually initiated in the presence of symptoms. The aim of this study was to assess night-to-night variability of obstructive sleep apnea to reassess the current practice...
May 26, 2017: Journal of Sleep Research
https://www.readbyqxmd.com/read/28548300/first-night-effect-on-cardiac-autonomic-function-in-different-female-reproductive-states
#13
Irina Virtanen, Nea Kalleinen, Anna S Urrila, Päivi Polo-Kantola
Decreases in heart rate variability, a marker of autonomic nervous system function, are associated with increased cardiovascular mortality. Heart rate variability increases in non-rapid eye movement sleep, peaking in slow-wave sleep. Therefore, decreasing the amount of deep sleep, for example, by introducing patients to a sleep laboratory environment, could decrease heart rate variability, increasing cardiovascular risk. We studied four groups of women with no previous sleep laboratory experience: young [n = 11, 23...
May 26, 2017: Journal of Sleep Research
https://www.readbyqxmd.com/read/28547821/effects-of-sleep-on-substance-use-in-adolescents-a-longitudinal-perspective
#14
Tam T Nguyen-Louie, Ty Brumback, Matthew J Worley, Ian M Colrain, Georg E Matt, Lindsay M Squeglia, Susan F Tapert
Substance use (SU) and sleep problems appear interrelated, but few studies have examined the influence of adolescent sleep patterns on development of SU disorders. This study prospectively examined the influence of sleep habits on subsequent SU in youth who later transitioned into heavy drinking. At time 1 (T1), participants (n = 95) were substance-naive 12- to 14-year-olds. Path-analytic models examined whether the effects of T1 risk factors (familial SU disorder, inhibition control, and externalizing and internalizing traits) on time 3 (M = 19...
May 26, 2017: Addiction Biology
https://www.readbyqxmd.com/read/28547800/mass-spawning-aggregation-of-the-giant-bumphead-parrotfish-bolbometopon-muricatum
#15
G Roff, C Doropoulos, G Mereb, P J Mumby
The present study reports a previously undocumented mass spawning aggregation and group spawning phenomena of c. 1200 individual bumphead parrotfish Bolbometopon muricatum in Palau, Micronesia. Although B. muricatum are protected in Palau, it is further recommended that management strategies should consider establishment of no-take zones at B. muricatum spawning aggregations and concomitant sleeping grounds elsewhere.
May 25, 2017: Journal of Fish Biology
https://www.readbyqxmd.com/read/28547658/time-of-day-dependent-expression-of-purinergic-receptors-in-mouse-suprachiasmatic-nucleus
#16
Julian Lommen, Anna Stahr, Marc Ingenwerth, Amira A H Ali, Charlotte von Gall
Purinergic P2X and P2Y receptors are involved in mediating intercellular signalling via purines such as adenosine triphosphate (ATP). P2X and P2Y receptors have been implicated in numerous body functions including learning, memory and sleep. All of these body functions show time-of-day-dependent variations controlled by the master circadian oscillator located in the suprachiasmatic nucleus (SCN). Evidence exists for a role of purinergic signalling in intercellular coupling within SCN. However, few studies have been performed on the expression of purinergic receptors in SCN...
May 26, 2017: Cell and Tissue Research
https://www.readbyqxmd.com/read/28546812/sinonasal-characteristics-in-patients-with-obstructive-sleep-apnea-compared-to-healthy-controls
#17
Mads Henrik Strand Moxness, Vegard Bugten, Wenche Moe Thorstensen, Ståle Nordgård
Background. The difference in nasal obstruction between OSA patients and healthy individuals is not adequately documented. Our aim was to describe the sinonasal quality of life and nasal function in OSA patients and healthy controls using the sinonasal outcome test-20 (SNOT-20), nasal obstruction visual analog scale (NO-VAS), and peak nasal inspiratory flow (PNIF). Methodology and Principal. Ninety-three OSA patients and 92 controls were included in a case-control study from 2010 to 2015. Results. Mean SNOT-20 score in the OSA group was 1...
2017: International Journal of Otolaryngology
https://www.readbyqxmd.com/read/28546800/hyperprolactinaemia-a-problem-in-patients-from-the-reproductive-period-to-the-menopause
#18
Sylwia Pałubska, Aneta Adamiak-Godlewska, Izabela Winkler, Katarzyna Romanek-Piva, Tomasz Rechberger, Marek Gogacz
Hyperprolactinaemia especially affects women in reproductive age (90/100,000) but also often is diagnosed in menopause age and leads to disturbances in functioning of LH-RH neurons and, as a consequence, to a decrease of FSH and LH, which causes inhibition of oestradiol production. Prolactin is a peptide hormone, phylogenetically one of the oldest, stimulating cells of various organs, which is produced and secreted mainly by lactotrophic acidophilic cells of the anterior lobe of the pituitary. It influences the increase in the mass of the mammary glands, and stimulation and maintenance of lactation after delivery...
March 2017: Przeglad Menopauzalny, Menopause Review
https://www.readbyqxmd.com/read/28546416/recognising-paediatric-obstructive-sleep-apnoea-in-primary-care-diagnosis-and-management
#19
Rebecca Harrison, Rachel Edmiston, Caroline Mitchell
No abstract text is available yet for this article.
June 2017: British Journal of General Practice: the Journal of the Royal College of General Practitioners
https://www.readbyqxmd.com/read/28546380/respiratory-implications-of-pediatric-neuromuscular-disease
#20
Howard B Panitch
Children with progressive neuromuscular weakness undergo a stereotypical progression of respiratory involvement, beginning with impaired airway clearance and progressing to nocturnal and then diurnal ventilatory failure. This review examines issues related to airway clearance and mucus mobilization, sleep problems, and use of assisted ventilation in children with neuromuscular diseases. Interventions for each of these problems have been created or adapted for the pediatric population. The use of airway clearance therapies and assisted ventilation have improved survival of children with neuromuscular weakness...
June 2017: Respiratory Care
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