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https://www.readbyqxmd.com/read/28192499/vitamin-d-status-in-pediatric-irritable-bowel-syndrome
#1
Benjamin Udoka Nwosu, Louise Maranda, Ninfa Candela
IMPORTANCE: Irritable bowel syndrome (IBS) is associated with significant morbidity in children and adolescents, and the therapeutic efficacy of available treatment options is limited. The role of vitamin D supplementation in pediatric IBS is unclear as the vitamin D status of pediatric patients with IBS is unknown. Equally, the relationship of vitamin D status with psychosomatic symptoms in children and adolescents is unclear. AIM: To characterize the vitamin D status of pediatric patients with IBS using a case-control study design...
2017: PloS One
https://www.readbyqxmd.com/read/28186201/speed-versus-endurance-tradeoff-in-plants-leaves-with-higher-photosynthetic-rates-show-stronger-seasonal-declines
#2
Yong-Jiang Zhang, Lawren Sack, Kun-Fang Cao, Xue-Mei Wei, Nan Li
We tested for a tradeoff across species between plant maximum photosynthetic rate and the ability to maintain photosynthesis under adverse conditions in the unfavorable season. Such a trade-off would be consistent with the observed trade-off between maximum speed and endurance in athletes and some animals that has been explained by cost-benefit theory. This trend would have importance for the general understanding of leaf design, and would simplify models of annual leaf carbon relations. We tested for such a trade-off using a database analysis across vascular plants and using an experimental approach for 29 cycad species, representing an ancient plant lineage with diversified evergreen leaves...
February 10, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28182445/state-dependent-alterations-in-inhibitory-control-and-emotional-face-identification-in-seasonal-affective-disorder
#3
Liv V Hjordt, Dea S Stenbæk, Kathrine Skak Madsen, Brenda Mc Mahon, Christian G Jensen, Martin Vestergaard, Ida Hageman, David Meder, Steen G Hasselbalch, Gitte M Knudsen
BACKGROUND: Depressed individuals often exhibit impaired inhibition to negative input and identification of positive stimuli, but it is unclear whether this is a state or trait feature. We here exploited a naturalistic model, namely individuals with seasonal affective disorder (SAD), to study this feature longitudinally. AIM: The goal of this study was to examine seasonal changes in inhibitory control and identification of emotional faces in individuals with SAD...
February 9, 2017: Journal of Abnormal Psychology
https://www.readbyqxmd.com/read/28154539/temporal-association-of-certain-neuropsychiatric-disorders-following-vaccination-of-children-and-adolescents-a-pilot-case-control-study
#4
Douglas L Leslie, Robert A Kobre, Brian J Richmand, Selin Aktan Guloksuz, James F Leckman
BACKGROUND: Although the association of the measles, mumps, and rubella vaccine with autism spectrum disorder has been convincingly disproven, the onset of certain brain-related autoimmune and inflammatory disorders has been found to be temporally associated with the antecedent administration of various vaccines. This study examines whether antecedent vaccinations are associated with increased incidence of obsessive-compulsive disorder (OCD), anorexia nervosa (AN), anxiety disorder, chronic tic disorder, attention deficit hyperactivity disorder, major depressive disorder, and bipolar disorder in a national sample of privately insured children...
2017: Frontiers in Psychiatry
https://www.readbyqxmd.com/read/28135573/retinal-venous-blood-carbon-monoxide-response-to-bright-light-in-male-pigs-a-preliminary-study
#5
Dan A Oren, Magdalena Duda, Katarzyna Kozioł, Maria Romerowicz-Misielak, Anna Koziorowska, Przemysław Sołek, Sławomir Nowak, Magdalena Kulpa, Marek Koziorowski
The physical mechanism by which light is absorbed in the eye and has antidepressant and energizing effects in Seasonal Affective Disorder and other forms of psychiatric major depression is of scientific interest. This study was designed to explore one specific aspect of a proposed humoral phototransduction mechanism, namely that carbon monoxide (CO) levels increase in retinal venous blood in response to bright light. Eleven mature male pigs approximately six months of age were kept for 7days in darkness and fasted for 12h prior to surgery...
January 21, 2017: Journal of Photochemistry and Photobiology. B, Biology
https://www.readbyqxmd.com/read/28129487/predictors-of-tanning-dependence-in-white-non-hispanic-females-and-males
#6
B Cartmel, A E Bale, S T Mayne, J E Gelernter, A T DeWan, P Spain, D J Leffell, S Pagoto, L M Ferrucci
BACKGROUND: Growing evidence suggests that some individuals may exhibit symptoms of dependence on ultraviolet (UV) light, a known carcinogen, in the context of tanning; however, few studies have investigated predictors of tanning dependence (TD). OBJECTIVE: To identify predictors of tanning dependence (TD). METHODS: Non-Hispanics of European-ancestry who had previously participated in a case-control study of early-onset basal cell carcinoma completed an online survey to ascertain TD and other behaviors (alcohol dependence, nicotine dependence, seasonal affective disorder (SAD), exercise 'addiction', and depression)...
January 27, 2017: Journal of the European Academy of Dermatology and Venereology: JEADV
https://www.readbyqxmd.com/read/28123670/associations-of-common-chronic-non-communicable-diseases-and-medical-conditions-with-sleep-related-problems-in-a-population-based-health-examination-study
#7
Syaron Basnet, Ilona Merikanto, Tuuli Lahti, Satu Männistö, Tiina Laatikainen, Erkki Vartiainen, Timo Partonen
A cross-sectional population-based survey, the National FINRISK 2012 Study, designed to monitor chronic diseases and their risk factors in Finland. A random sample of 10,000 adults aged 25-74 years, and of them, 64% (n=6424) participated the study. Participants subjectively reported the total durations for sleep and naps (n=6238), sleep quality (n=5878), bedtimes and wake-up times separately for working days and weekends yielding the amount of sleep debt (n=5878), and the seasonal variation in sleep duration (n=4852)...
July 2016: Sleep Science
https://www.readbyqxmd.com/read/28107218/depression-anxiety-and-alcohol-use-in-elite-rugby-league-players-over-a-competitive-season
#8
Etienne J Du Preez, Kenneth S Graham, Thomas Y Gan, Bassam Moses, Chris Ball, Donald E Kuah
OBJECTIVE: To assess the prevalence of symptoms of depression, anxiety, and rates of alcohol misuse in elite rugby league players in Australasia. DESIGN: A cross-sectional, epidemiological study with repeated measures. SETTING: Surveys were conducted during the 2015 preseason and in-season. PARTICIPANTS: Four hundred four elite rugby league players participated preseason and 278 players in-season. MAIN OUTCOME MEASURES: Symptoms of depression were measured using the Patient Health Questionnaire-9 scale, symptoms of generalized anxiety disorder (GAD) with the GAD-7 scale, and the Alcohol Use Disorders Identification Test Consumption scale was used to assess hazardous alcohol use...
January 17, 2017: Clinical Journal of Sport Medicine: Official Journal of the Canadian Academy of Sport Medicine
https://www.readbyqxmd.com/read/28098225/the-impacts-of-air-pollution-on-maternal-stress-during-pregnancy
#9
Yanfen Lin, Leilei Zhou, Jian Xu, Zhongcheng Luo, Haidong Kan, Jinsong Zhang, Chonghuai Yan, Jun Zhang
To investigate the association of air pollution with maternal stress during pregnancy, we enrolled 1,931 women during mid-to-late pregnancy in Shanghai in 2010. The "Life-Event Scale for Pregnant Women" and "Symptom-Checklist-90-Revised Scale" (SCL-90-R) were used to evaluate life event stress and emotional stress, respectively. Air pollution data were collected for each district where pregnant women lived during pregnancy. We associated ambient air pollution with stress scores using multivariable logistic regression models...
January 18, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28073447/potential-impact-of-an-exceptional-bloom-of-karenia-mikimotoi-on-dissolved-oxygen-levels-in-waters-off-western-ireland
#10
Shane O'Boyle, Georgina McDermott, Joe Silke, Caroline Cusack
In the summer of 2005 an exceptional bloom of the dinoflagellate Karenia mikimotoi occurred along Ireland's Atlantic seaboard and was associated with the mass mortality of both benthic and pelagic marine life. Oxygen depletion, cellular toxicity and physical smothering, are considered to be the main factors involved in mortality. In this paper we use a theoretical approach based on stoichiometry (the Anderson ratio) and an average K. mikimotoi cellular carbon content of 329pgCcell(-1) (n=20) to calculate the carbonaceous and nitrogenous oxygen demand following bloom collapse...
March 2016: Harmful Algae
https://www.readbyqxmd.com/read/28056406/the-impact-of-maternal-factors-on-the-association-between-temperature-and-preterm-delivery
#11
Rupa Basu, Hong Chen, De-Kun Li, Lyndsay A Avalos
BACKGROUND: Few studies have examined maternal modifiers of temperature and adverse birth outcomes because of lack of data. We assessed the relationship between apparent temperature, preterm delivery (PTD) and maternal demographics, medical and mental health conditions, and behaviors. METHODS: A time-stratified case-crossover analysis was conducted using 14,466 women who had a PTD (20 to less than 37 gestational weeks) from 1995 to 2009 using medical records from a large health maintenance organization in Northern California...
January 2, 2017: Environmental Research
https://www.readbyqxmd.com/read/28012610/secondary-to-excessive-melatonin-synthesis-the-consumption-of-tryptophan-from-outside-the-blood-brain-barrier-and-melatonin-over-signaling-in-the-pars-tuberalis-may-be-central-to-the-pathophysiology-of-winter-depression
#12
José Carlos Pereira, Márcia Pradella Hallinan, Rosana Cardoso Alves
Seasonal affective disorder is defined as recurrent episodes of major depression, mania, or hypomania with seasonal onset and remission. In this class of mood disturbances, a unipolar major depressive disorder known as winter depression is common in populations living in northern latitudes far from the equator. Winter depression repeatedly occurs in the autumn or winter and remits in the spring or summer, and its etiopathogenesis is currently unknown. However, one can surmise that excessive melatonin production during the reduced duration of daily sunlight in the autumn and winter plays a role in its pathophysiology...
January 2017: Medical Hypotheses
https://www.readbyqxmd.com/read/27979316/seasonal-mood-changes-in-patients-with-obsessive-compulsive-disorder
#13
Oğuz Tan, Barış Metin, Barış Önen Ünsalver, Gökben Hızlı Sayar
Obsessive-compulsive disorder (OCD) is frequently associated with mood disorders. However, to date, the co-occurrence of OCD with seasonal affective disorder (SAD) has not been investigated. We have aimed to estimate the prevalence of seasonal mood changes in patients with OCD and explore the contribution of seasonality in mood to the severity of OCD. The Seasonal Pattern Assessment Questionnaire (SPAQ), the Yale-Brown Obsession and Compulsion Scale (Y-BOCS), the Hamilton Depression Rating Scale-17 Items (HDRS-17), and the Beck Anxiety Inventory (BAI) were administered to patients with OCD (n=104) and controls (n=125)...
June 16, 2016: Psychiatry Research
https://www.readbyqxmd.com/read/27965366/expression-of-cyanobacterial-fbp-sbpase-in-soybean-prevents-yield-depression-under-future-climate-conditions
#14
Iris H Köhler, Ursula M Ruiz-Vera, Andy VanLoocke, Michell L Thomey, Tom Clemente, Stephen P Long, Donald R Ort, Carl J Bernacchi
Predictions suggest that current crop production needs to double by 2050 to meet global food and energy demands. Based on theory and experimental studies, overexpression of the photosynthetic enzyme sedoheptulose-1,7-bisphosphatase (SBPase) is expected to enhance C3 crop photosynthesis and yields. Here we test how expression of the cyanobacterial, bifunctional fructose-1,6/sedoheptulose-1,7-bisphosphatase (FBP/SBPase) affects carbon assimilation and seed yield (SY) in a major crop (soybean, Glycine max). For three growing seasons, wild-type (WT) and FBP/SBPase-expressing (FS) plants were grown in the field under ambient (400 μmol mol(-1)) and elevated (600 μmol mol(-1)) CO2 concentrations [CO2] and under ambient and elevated temperatures (+2...
December 12, 2016: Journal of Experimental Botany
https://www.readbyqxmd.com/read/27942239/seasonal-affective-disorder-winter-type-current-insights-and-treatment-options
#15
REVIEW
Ybe Meesters, Marijke Cm Gordijn
Seasonal affective disorder (SAD), winter type, is a seasonal pattern of recurrent major depressive episodes most commonly occurring in autumn or winter and remitting in spring/summer. The syndrome has been well-known for more than three decades, with light treatment being the treatment of first choice. In this paper, an overview is presented of the present insights in SAD. Description of the syndrome, etiology, and treatment options are mentioned. Apart from light treatment, medication and psychotherapy are other treatment options...
2016: Psychology Research and Behavior Management
https://www.readbyqxmd.com/read/27923182/sociodemographic-lifestyle-and-psychosocial-determinants-of-hair-cortisol-in-a-south-london-community-sample
#16
Susanne Fischer, Roman Duncko, Stephani L Hatch, Andrew Papadopoulos, Laura Goodwin, Souci Frissa, Matthew Hotopf, Anthony J Cleare
OBJECTIVE: Hypothalamic-pituitary-adrenal (HPA) measures are crucial for research into stress and stress-related disorders. Most HPA measures fluctuate depending on diurnal rhythms and state confounders. Hair cortisol concentrations (HCC) are less susceptible to such fluctuations, but less is known about trait-like confounders. Using a community sample, we tested the relationship between HCC and a range of variables including demographic variables, hair treatment, and medication, as well as psychosocial variables, namely childhood trauma, critical life events, and depressive symptoms...
February 2017: Psychoneuroendocrinology
https://www.readbyqxmd.com/read/27919923/clonality-increases-with-snow-depth-in-the-arctic-dwarf-shrub-empetrum-hermaphroditum
#17
Miriam J Bienau, R Lutz Eckstein, Annette Otte, Walter Durka
PREMISE OF THE STUDY: Vegetative reproduction and spread through clonal growth plays an important role in arctic-alpine ecosystems with short cool growing seasons. Local variation in winter snow accumulation leads to discrete habitat types that may provide divergent conditions for sexual and vegetative reproduction. Therefore, we studied variation in clonal structure of a dominant, evergreen, dwarf shrub (Empetrum nigrum s.l. with the two taxa E. nigrum L. s.s. and E. hermaphroditum Hagerup) along a snow cover gradient and compared clonal diversity and spatial genetic structure between habitats...
December 2016: American Journal of Botany
https://www.readbyqxmd.com/read/27912106/a-multicenter-randomized-controlled-trial-for-bright-light-therapy-in-adults-with-intellectual-disabilities-and-depression-study-protocol-and-obstacle-management
#18
Pauline C M Hamers, Heleen M Evenhuis, Heidi Hermans
Due to the limited cognitive and communicative abilities of adults with intellectual disabilities (ID), current treatment options for depression are often limited to lifestyle changes and pharmacological treatment. Bright light therapy (BLT) is an effective intervention for both seasonal and non-seasonal depression in the general population. BLT is an inexpensive, easy to carry out intervention with minimal side effects. However, knowledge on its anti-depressant effect in adults with ID is lacking. Obstacles in realizing a controlled intervention study in this particular study population may have contributed to this lack...
January 2017: Research in Developmental Disabilities
https://www.readbyqxmd.com/read/27903144/parent-burden-in-accessing-outpatient-psychiatric-services-for-adolescent-depression-in-a-large-state-system
#19
Kaitlin P Gallo, S Serene Olin, Amy Storfer-Isser, Briannon C O'Connor, Emma D Whitmyre, Kimberly E Hoagwood, Sarah McCue Horwitz
OBJECTIVE: This study examined barriers facing parents who seek outpatient psychiatric care in a large state system for adolescents with depression. METHODS: A total of 264 outpatient facilities licensed to treat youths in New York were contacted by using a mystery shopper methodology. Callers tracked the number of call attempts, in-person appointments, and other steps required prior to seeing a psychiatrist. RESULTS: Fewer than two-thirds of parents made a psychiatry, therapy, or intake appointment...
December 1, 2016: Psychiatric Services: a Journal of the American Psychiatric Association
https://www.readbyqxmd.com/read/27858294/sleep-quality-morningness-eveningness-preference-mood-profile-and-levels-of-serum-melatonin-in-migraine-patients-a-case-control-study
#20
Hasan Hüseyin Kozak, Murat Boysan, Ali Ulvi Uca, Adem Aydın, İbrahim Kılınç, Emine Genç, Mustafa Altaş, Dilara Cari Güngör, Keziban Turgut, Nejla Özer
The melatonin as the pineal gland's secretory product is implicated in the pathophysiology of migraine. Melatonin has critical functions in human physiology, and research underscores the importance of melatonin in circadian rhythm, sleep, and mood regulation. Clinical observations have indicated that migraine attacks have a seasonal, menstrual, and circadian timing, suggesting that chronobiological mechanisms and their alterations may causally involve in the etiology of the disease. However, the topic has received relatively little attention in the migraine literature...
November 17, 2016: Acta Neurologica Belgica
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