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Seasonal affective disorder

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https://www.readbyqxmd.com/read/27912863/circadian-rhythm-and-sleep-during-prolonged-antarctic-residence-at-chinese-zhongshan-station
#1
Nan Chen, Quan Wu, Yanlei Xiong, Guang Chen, Dandan Song, Chengli Xu
OBJECTIVE: Residence at Zhongshan Station (69°22'24″S, 76°22'40″E) for over 1 year exposes winter-over members to marked changes of light-dark cycle, ranging from the constant daylight of polar days to the constant darkness of polar nights, in addition to geographic and social isolation. This extreme photoperiodic environment may increase the risk of sleep disturbances and circadian desynchrony. The aim of this study was to investigate the circadian rhythm and sleep phase of Chinese winter-over expeditioners at Zhongshan Station...
December 2016: Wilderness & Environmental Medicine
https://www.readbyqxmd.com/read/27854196/determination-of-flavonoids-polyphenols-and-antioxidant-activity-of-tephrosia-purpurea-a-seasonal-study
#2
Madan Mohan Pandey, Sayyada Khatoon, Subha Rastogi, Ajay Kumar Singh Rawat
OBJECTIVE: Tephrosia purpurea (Linn·) Pers. is widely used in traditional medicine to treat liver disorders, febrile attacks, enlargement and obstruction of liver, spleen, and kidney. In the present study, investigations were carried out to determine the seasonal impact on the content of flavonoid glycosides and on antioxidant activities so as to identify the optimal time of harvesting. METHODS: The plant materials were collected in different seasons during 2013-2014...
November 2016: Journal of Integrative Medicine
https://www.readbyqxmd.com/read/27835725/bright-light-therapy-as-augmentation-of-pharmacotherapy-for-treatment-of-depression-a-systematic-review-and-meta-analysis
#3
Thomas M Penders, Cornel N Stanciu, Alexander M Schoemann, Philip T Ninan, Richard Bloch, Sy A Saeed
Background: Bright light therapy has demonstrated efficacy and is an accepted treatment for seasonal depression. It has been suggested that bright light therapy may have efficacy in nonseasonal depressions. Also, there is evidence that bright light therapy may improve responsiveness to antidepressant pharmacotherapy. Data Sources: We searched PubMed/MEDLINE, PsycINFO, PsycARTICLES, CINAHL, EMBASE, Scopus, and Academic OneFile for English-language literature published between January 1998 and April 2016, using the keywords bright light therapy AND major depression, bright light therapy AND depress*, bright light therapy AND bipolar depression, bright light therapy AND affective disorders, circadian rhythm AND major depression, circadian rhythm AND depress*, and circadian rhythm AND affective disorder...
October 20, 2016: Primary Care Companion to CNS Disorders
https://www.readbyqxmd.com/read/27821410/sad-schmad-is-seasonal-affective-disorder-a-valid-construct
#4
Greg Murray
No abstract text is available yet for this article.
November 7, 2016: Australian and New Zealand Journal of Psychiatry
https://www.readbyqxmd.com/read/27821359/pupillary-response-abnormalities-in-depressive-disorders
#5
Scott A Laurenzo, Randy Kardon, Johannes Ledolter, Pieter Poolman, Ashley M Schumacher, James B Potash, Jan M Full, Olivia Rice, Anna Ketcham, Cole Starkey, Jess G Fiedorowicz
Depressive disorders lack objective physiological measurements to characterize the affected population and facilitate study of relevant mechanisms. The melanopsin-mediated light signaling pathway may contribute to seasonal variation and can be measured non-invasively by pupillometry. We prospectively studied changes in melanopsin-mediated pupillary constriction in 19 participants with major depressive disorder (MDD) and 10 control across the summer and winter solstices. The melanopsin-mediated response, as measured by the pupil's sustained constriction six s after a high intensity blue light stimulus, was marginally attenuated in those with MDD relative to controls (p=0...
October 21, 2016: Psychiatry Research
https://www.readbyqxmd.com/read/27821114/bright-light-therapy-in-pregnant-women-with-major-depressive-disorder-study-protocol-for-a-randomized-double-blind-controlled-clinical-trial
#6
Babette Bais, Astrid M Kamperman, Marjolein D van der Zwaag, Gwen C Dieleman, Hanneke W Harmsen van der Vliet-Torij, Hilmar H Bijma, Ritsaert Lieverse, Witte J G Hoogendijk, Mijke P Lambregtse-van den Berg
BACKGROUND: Depression during pregnancy is a common and high impact disease. Generally, 5-10 % of pregnant women suffer from depression. Children who have been exposed to maternal depression during pregnancy have a higher risk of adverse birth outcomes and more often show cognitive, emotional and behavioural problems. Therefore, early detection and treatment of antepartum depression is necessary. Both psychotherapy and antidepressant medication, first choice treatments in a non-pregnant population, have limitations in treating depression during pregnancy...
November 8, 2016: BMC Psychiatry
https://www.readbyqxmd.com/read/27792402/is-18-f-fdg-pet-suitable-to-predict-clinical-response-to-the-treatment-of-geriatric-depression-a-systematic-review-of-pet-studies
#7
Franco De Crescenzo, Mario Ciliberto, Deny Menghini, Giorgio Treglia, Klaus P Ebmeier, Luigi Janiri
BACKGROUND: Geriatric depression is one of the most common psychiatric disorders in later life. It differs from earlier depression in its presentation, etiology, risk factors, protective factors and outcome. Positron emission tomography (PET) can be used to detect changes in neural circuitry in neuropsychiatric disorders, and several authors have assessed its role in the diagnosis and follow-up of patients with geriatric depression. We reviewed the current evidence on the use of fluorine-18-fluorodeoxyglucose positron emission tomography ((18)F-FDG-PET) in geriatric depressed patients to find predictors of treatment response...
October 28, 2016: Aging & Mental Health
https://www.readbyqxmd.com/read/27780802/association-between-short-term-exposure-to-pm2-5-and-pm10-and-mortality-in-susceptible-subgroups-a-multisite-case-crossover-analysis-of-individual-effect-modifiers
#8
Ester Rita Alessandrini, Massimo Stafoggia, Annunziata Faustini, Giovanna Berti, Cristina Canova, Aldo De Togni, Katiuscia Di Biagio, Bianca Gherardi, Simone Giannini, Paolo Lauriola, Paolo Pandolfi, Giorgia Randi, Andrea Ranzi, Lorenzo Simonato, Stefano Zauli Sajani, Ennio Cadum, Francesco Forastiere
We performed a multisite study to evaluate demographic and clinical conditions as potential modifiers of the particulate matter (PM)-mortality association. We selected 228,619 natural deaths of elderly persons (ages ≥65 years) that occurred in 12 Italian cities during the period 2006-2010. Individual data on causes of death, age, sex, location of death, and preexisting chronic and acute conditions from the previous 5 years' hospitalizations were collected. City-specific conditional logistic regression models were applied within the case-crossover "time-stratified" framework, followed by random-effects meta-analysis...
October 25, 2016: American Journal of Epidemiology
https://www.readbyqxmd.com/read/27768751/chronology-of-onset-of-mental-disorders-and-physical-diseases-in-mental-physical-comorbidity-a-national-representative-survey-of-adolescents
#9
Marion Tegethoff, Esther Stalujanis, Angelo Belardi, Gunther Meinlschmidt
BACKGROUND: The objective was to estimate temporal associations between mental disorders and physical diseases in adolescents with mental-physical comorbidities. METHODS: This article bases upon weighted data (N = 6483) from the National Comorbidity Survey Adolescent Supplement (participant age: 13-18 years), a nationally representative United States cohort. Onset of Diagnostic and Statistical Manual of Mental Disorders, Fourth Edition lifetime mental disorders was assessed with the fully structured World Health Organization Composite International Diagnostic Interview, complemented by parent report...
2016: PloS One
https://www.readbyqxmd.com/read/27749646/epidemiology-of-acne-vulgaris-in-adolescent-male-students-in-arar-kingdom-of-saudi-arabia
#10
Nagah M Abo El-Fetoh, Naif G Alenezi, Nasser G Alshamari, Omar G Alenezi
BACKGROUND: Acne vulgaris is the most common cutaneous disorder affecting adolescents and young adults. Small, noninflamed acne lesions may not be more than a slight nuisance, but, in individuals with more severe inflammatory disease, pain, social embarrassment, and both physical and psychological scarring can be life altering. Despite its high prevalence, no previous community-based studies have been conducted in Arar, northern border of Kingdom of Saudi Arabia, addressing this issue...
September 2016: Journal of the Egyptian Public Health Association
https://www.readbyqxmd.com/read/27744609/seasonality-of-hospital-admissions-and-birth-dates-among-inpatients-with-eating-disorders-a-nationwide-population-based-retrospective-study
#11
Chih-Sung Liang, Chi-Hsiang Chung, Chia-Kuang Tsai, Wu-Chien Chien
PURPOSE: Seasonal variation exists in the psychopathology of eating disorders. However, it is still unknown whether there is seasonal variation in eating disorder symptom severity. This study investigated seasonal trends in hospital admissions and birth dates among patients with eating disorders in Taiwan (25°N). Subgroup analyses by gender and comorbid affective disorders were also of interest. METHODS: Data on all hospital admissions between 2000 and 2013 were collected from the Taiwan National Health Insurance Research Database, and 1954 patients with eating disorders were identified...
October 15, 2016: Eating and Weight Disorders: EWD
https://www.readbyqxmd.com/read/27703764/light-therapy-for-non-seasonal-depression-systematic-review-and-meta-analysis
#12
Stefan Perera, Rebecca Eisen, Meha Bhatt, Neera Bhatnagar, Russell de Souza, Lehana Thabane, Zainab Samaan
BACKGROUND: Light therapy is a known treatment for patients with seasonal affective disorder. However, the efficacy of light therapy in treating patients with non-seasonal depression remains inconclusive. AIMS: To provide the current state of evidence for efficacy of light therapy in non-seasonal depressive disorders. METHOD: Systematic review of randomised controlled trials (RCTs) was conducted by searching MEDLINE, EMBASE, PsycINFO, CINAHL, and CENTRAL from their inception to September 2015...
March 2016: BJPsych Open
https://www.readbyqxmd.com/read/27651381/month-of-conception-and-learning-disabilities-a-record-linkage-study-of-801-592-children
#13
Daniel F Mackay, Gordon C S Smith, Sally-Ann Cooper, Rachael Wood, Albert King, David N Clark, Jill P Pell
Learning disabilities have profound, long-lasting health sequelae. Affected children born over the course of 1 year in the United States of America generated an estimated lifetime cost of $51.2 billion. Results from some studies have suggested that autistic spectrum disorder may vary by season of birth, but there have been few studies in which investigators examined whether this is also true of other causes of learning disabilities. We undertook Scotland-wide record linkage of education (annual pupil census) and maternity (Scottish Morbidity Record 02) databases for 801,592 singleton children attending Scottish schools in 2006-2011...
October 1, 2016: American Journal of Epidemiology
https://www.readbyqxmd.com/read/27649017/-epidemiology-of-vertigo-on-hospital-emergency
#14
Luis Roque Reis, Rita Lameiras, Pedro Cavilhas, Pedro Escada
INTRODUCTION: Vertigo is one of the most frequent motives in seeking specialized medical care in an emergency. The aim of this study was to evaluate the relevance of balance disorders in the Otorhinolaryngology urgency, the epidemiological characteristics and the possible seasonality. It was used a sample of patients who were assisted in a health care emergency department of this specialty, of a universitary hospital and during a period of four years. MATERIAL AND METHODS: The project was conceived as a descriptive epidemiological study of population type, retrospective, during the period from 2010 to 2013...
May 2016: Acta Médica Portuguesa
https://www.readbyqxmd.com/read/27614831/peripartal-rumination-dynamics-and-health-status-in-cows-calving-in-hot-and-cool-seasons
#15
S Paudyal, F Maunsell, J Richeson, C Risco, A Donovan, P Pinedo
Our objective was to evaluate the effect of season of calving, associated with variable levels of heat stress, on the dynamics of rumination during the prepartum period and early lactation of cows that were healthy or affected by peripartal health disorders. Three weeks before the estimated due date, 210 multiparous Holstein cows at the University of Florida Dairy Unit were affixed with a neck collar containing rumination loggers, providing rumination time (RT) in 2-h periods. One blood sample was collected in a subpopulation of cows (n = 76) at 12 to 48 h postcalving to assess metabolic status by determining serum calcium, nonesterified fatty acid, and β-hydroxybutyrate concentrations...
September 7, 2016: Journal of Dairy Science
https://www.readbyqxmd.com/read/27565102/purls-light-therapy-for-nonseasonal-major-depressive-disorder
#16
Kehinde Eniola, Angela Bacigalupo, Anne Mounsey
While bright light therapy already has a place in the treatment of seasonal affective disorder, a recent trial spotlights its utility beyond the winter months.
July 2016: Journal of Family Practice
https://www.readbyqxmd.com/read/27553523/serotonin-transporter-binding-is-reduced-in-seasonal-affective-disorder-following-light-therapy
#17
A E Tyrer, R D Levitan, S Houle, A A Wilson, J N Nobrega, P M Rusjan, J H Meyer
OBJECTIVE: To investigate the effects of light therapy on serotonin transporter binding (5-HTT BPND ), an index of 5-HTT levels, in the anterior cingulate and prefrontal cortices (ACC and PFC) during winter in seasonal affective disorder (SAD). 5-HTT BPND fluctuates seasonally to a greater extent in SAD relative to health. We hypothesized that in SAD, 5-HTT BPND would be reduced in the ACC and PFC following light therapy. METHODS: Eleven SAD participants underwent [(11) C] DASB positron emission tomography (PET) scans to measure 5-HTT BPND before and after 2 weeks of daily morning light therapy...
November 2016: Acta Psychiatrica Scandinavica
https://www.readbyqxmd.com/read/27539946/seasonal-variations-in-sleep-disorders-of-nurses
#18
Yuanmay Chang, Calvin Lam, Su-Ru Chen, Trevor Sithole, Min-Huey Chung
AIMS AND OBJECTIVES: To investigate the difference between nurses and the general population regarding seasonal variations in sleep disorders (SDs) during 2004-2008. The effects of season and group interaction on SDs with regard to different comorbidities were also examined. BACKGROUND: Studies on seasonal variations in SDs were mainly conducted in Norway for the general population. Furthermore, whether different comorbidities cause seasonal variations in SDs in nurses remains unknown...
August 18, 2016: Journal of Clinical Nursing
https://www.readbyqxmd.com/read/27494399/are-short-blue-wavelengths-necessary-for-light-treatment-of-seasonal-affective-disorder
#19
J L Anderson, M A St Hilaire, R R Auger, C A Glod, S J Crow, A N Rivera, S M Fuentes Salgado, S J Pullen, T K Kaufman, A J Selby, D J Wolfe
Despite widely published speculation regarding a potential potency advantage of short-wavelength (blue-appearing) light for Seasonal Affective Disorder (SAD) treatment, there have been few systematic studies. Those comparing short-wavelength to broad-wavelength (white) light under actual clinical conditions suggest equivalent effectiveness. This multicenter, parallel-group design trial was undertaken to compare the effects of light therapy on SAD using blue (~465 nm) versus blue-free (595-612 nm) LED lights...
August 5, 2016: Chronobiology International
https://www.readbyqxmd.com/read/27470330/shining-evolutionary-light-on-human-sleep-and-sleep-disorders
#20
REVIEW
Charles L Nunn, David R Samson, Andrew D Krystal
Sleep is essential to cognitive function and health in humans, yet the ultimate reasons for sleep-i.e. 'why' sleep evolved-remain mysterious. We integrate findings from human sleep studies, the ethnographic record, and the ecology and evolution of mammalian sleep to better understand sleep along the human lineage and in the modern world. Compared to other primates, sleep in great apes has undergone substantial evolutionary change, with all great apes building a sleeping platform or 'nest'. Further evolutionary change characterizes human sleep, with humans having the shortest sleep duration, yet the highest proportion of rapid eye movement sleep among primates...
2016: Evolution, Medicine, and Public Health
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