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https://www.readbyqxmd.com/read/28221367/transcriptomic-analyses-and-leukocyte-telomere-length-measurement-in-subjects-exposed-to-severe-recent-stressful-life-events
#1
N Lopizzo, S Tosato, V Begni, S Tomassi, N Cattane, M Barcella, G Turco, M Ruggeri, M A Riva, C M Pariante, A Cattaneo
Stressful life events occurring in adulthood have been found able to affect mood and behavior, thus increasing the vulnerability for several stress-related psychiatric disorders. However, although there is plenty of clinical data supporting an association between stressful life events in adulthood and an enhanced vulnerability for psychopathology, the underlying molecular mechanisms are still poorly investigated. Thus, in this study we performed peripheral/whole-genome transcriptomic analyses in blood samples obtained from 53 adult subjects characterized for recent stressful life events occurred within the previous 6 months...
February 21, 2017: Translational Psychiatry
https://www.readbyqxmd.com/read/28220473/risk-of-stroke-after-bereavement-a-systematic-literature-review
#2
REVIEW
F S Aalbaek, S Graff, M Vestergaard
Several studies have suggested that psychological stress may increase the risk of stroke. However, this link remains a controversial issue because of conflicting findings. Bereavement, the loss of a close relative, is considered a severely stressful life event. Increased risk of stroke could thus be expected after bereavement if stress plays a causal role. We aimed to evaluate the association between bereavement and stroke by performing a systematic review of the existing literature. The literature search was conducted according to the PRISMA guidelines for systematic reviews...
February 20, 2017: Acta Neurologica Scandinavica
https://www.readbyqxmd.com/read/28215149/gastroprotective-effect-of-stress-preconditioning-involvement-of-glucocorticoids
#3
Ludmila Filaretova
Stress plays a leading role in maintaining the physical health of the body. Various health effects of preconditioning mild stress strongly confirm this statement. Preconditioning mild stress, which is everyday event of animal and human life, may attenuate the development and aggravation of diseases including such widespread pathology as gastric ulceration. Preconditioning mild stress may diminish gastric injury formation caused by severe stress. Gastroprotective influence of preconditioning mild stress is known to be mediated by prostaglandins...
February 15, 2017: Current Pharmaceutical Design
https://www.readbyqxmd.com/read/28214871/restraint-stress-during-pregnancy-rapidly-raises-kynurenic-acid-levels-in-mouse-placenta-and-fetal-brain
#4
Francesca M Notarangelo, Robert Schwarcz
Stressful events during pregnancy adversely affect brain development and may increase the risk of psychiatric disorders later in life. Early changes in the kynurenine (KYN) pathway (KP) of tryptophan (TRP) degradation, which contains several neuroactive metabolites, including kynurenic acid (KYNA), 3-hydroxykynurenine (3-HK), and quinolinic acid (QUIN), may constitute a molecular link between prenatal stress and delayed pathological consequences. To begin testing this hypothesis experimentally, we examined the effects of a 2-h restraint stress on KP metabolism in pregnant FVB/N mice on gestational day 17...
February 18, 2017: Developmental Neuroscience
https://www.readbyqxmd.com/read/28214073/older-adults-with-ptsd-brief-state-of-research-and-evidence-based-psychotherapy-case-illustration
#5
Joan M Cook, Elissa McCarthy, Steven R Thorp
Although lifetime exposure to potentially traumatic events among older adults is fairly high, rates of full-blown post-traumatic stress disorder (PTSD) are estimated at about 4.5%, a rate lower than that for middle-aged and young adults. Nevertheless, PTSD seems to be an under-recognized and under-treated condition in older adults. Assessment and treatment can be challenging in this population for various reasons, including potential cognitive or sensory decline and comorbid mental and physical disorders. This article provides highlights of the empirical research on PTSD in late life, including information on its effects on cognition and physical health...
January 4, 2017: American Journal of Geriatric Psychiatry
https://www.readbyqxmd.com/read/28211478/ecology-and-genetics-affect-relative-invasion-success-of-two-echium-species-in-southern-australia
#6
Xiaocheng Zhu, Paul A Weston, Dominik Skoneczny, David Gopurenko, Lucie Meyer, Brendan J Lepschi, Ragan M Callaway, Geoff M Gurr, Leslie A Weston
Echium plantagineum and E. vulgare are congeneric exotics first introduced to Australia in the early 1800 s. There, E. plantagineum is now highly invasive, whereas E. vulgare has a limited distribution. Studies were conducted to evaluate distribution, ecology, genetics and secondary chemistry to shed light on factors associated with their respective invasive success. When sampled across geographically diverse locales, E. plantagineum was widespread and exhibited a small genome size (1 C = 0.34 pg), an annual life cycle, and greater genetic diversity as assessed by DNA sequence analysis...
February 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28207685/trends-in-postpartum-depressive-symptoms-27-states-2004-2008-and-2012
#7
Jean Y Ko, Karilynn M Rockhill, Van T Tong, Brian Morrow, Sherry L Farr
Postpartum depression is common and associated with adverse infant and maternal outcomes (e.g., lower breastfeeding initiation and duration and poor maternal and infant bonding) (1-3). A developmental Healthy People 2020 objective is to decrease the proportion of women delivering a live birth who experience postpartum depressive symptoms (PDS).* To provide a baseline for this objective, CDC sought to describe self-reported PDS overall, by reporting state, and by selected sociodemographic factors, using 2004, 2008, and 2012 data from the Pregnancy Risk Assessment Monitoring System (PRAMS)...
February 17, 2017: MMWR. Morbidity and Mortality Weekly Report
https://www.readbyqxmd.com/read/28199068/the-relationship-between-stressful-life-events-and-axis-i-diagnoses-among-adolescent-offspring-of-probands-with-bipolar-and-non-bipolar-psychiatric-disorders-and-healthy-controls-the-pittsburgh-bipolar-offspring-study-bios
#8
Lisa A Pan, Tina R Goldstein, Brian T Rooks, Mary Hickey, Jie Yu Fan, John Merranko, Kelly Monk, Rasim S Diler, Dara J Sakolsky, Daniella Hafeman, Satish Iyengar, Benjamin Goldstein, David J Kupfer, David A Axelson, David A Brent, Boris Birmaher
BACKGROUND: Previous studies have explored the role of stressful life events in the development of mood disorders. We examined the frequency and nature of stressful life events as measured by the Stressful Life Events Schedule (SLES) among 3 groups of adolescent offspring of probands with bipolar (BD), with non-BD psychiatric disorders, and healthy controls. Furthermore, we examined the relationship between stressful life events and the presence of DSM-IV Axis I disorders in these offspring...
February 14, 2017: Journal of Clinical Psychiatry
https://www.readbyqxmd.com/read/28198454/preliminary-evidence-for-a-role-of-the-adrenergic-nervous-system-in-generalized-anxiety-disorder
#9
Xiaobin Zhang, Joanna Norton, Isabelle Carrière, Karen Ritchie, Isabelle Chaudieu, Joanne Ryan, Marie-Laure Ancelin
Generalized anxiety disorder (GAD) is a common chronic condition that is understudied compared to other psychiatric disorders. An altered adrenergic function has been reported in GAD, however direct evidence for genetic susceptibility is missing. This study evaluated the associations of gene variants in adrenergic receptors (ADRs) with GAD, with the involvement of stressful events. Data were obtained from 844 French community-dwelling elderly aged 65 or over. Anxiety disorders were assessed using the Mini-International Neuropsychiatry Interview, according to DSM-IV criteria...
February 15, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28198138/do-cognitive-distortions-explain-the-longitudinal-relationship-between-life-adversity-and-emotional-and-behavioural-problems-in-secondary-school-children
#10
Constantina Panourgia, Amanda Comoretto
Research has shown that children exposed to life adversity are at higher risk of negative developmental outcomes than those enduring lower stress levels. Life adversity can lead, among other things, to emotional and behavioural problems. Several factors have been studied to explain this relationship, with several investigators underlining the role of thought structures such as cognitive distortions, which refer to negatively biased information-processing of external events. This can help explain why some individuals characterised by adverse personal life stories interpret ambiguous events in a negatively biased way...
February 15, 2017: Stress and Health: Journal of the International Society for the Investigation of Stress
https://www.readbyqxmd.com/read/28196559/the-link-between-childhood-adversity-and-late-life-mental-health-evidence-for-the-influence-of-early-life-experiences-or-illusory-correlations
#11
Tracy D Vannorsdall, Cynthia A Munro
Adverse childhood experiences (ACEs) reflect stressful or traumatic early life events such as abuse, neglect, and significant household challenges. These experiences are increasingly appreciated as factors that exert influence on physical and mental functioning throughout the lifespan. Numerous studies have demonstrated dose-response relationships between the number of ACEs reported and negative health outcomes in adulthood (Anda et al., 2006). At the same time, evidence points to the role of ACEs in the development of heightened biological reactivity to stress that may serve to increase vulnerability to the development of mental and substance use disorders (e...
March 2017: International Psychogeriatrics
https://www.readbyqxmd.com/read/28196108/post-traumatic-stress-disorder-symptom-burden-and-gender-each-affect-generalization-in-a-reward-and-punishment-learning-task
#12
Milen L Radell, Kevin D Beck, Mark W Gilbertson, Catherine E Myers
Post-traumatic stress disorder (PTSD) can develop following exposure to a traumatic event. Re-experiencing, which includes intrusive memories or flashbacks of the trauma, is a core symptom cluster of PTSD. From an associative learning perspective, this cluster may be attributed to cues associated with the trauma, which have come to elicit symptoms in a variety of situations encountered in daily life due to a tendency to overgeneralize. Consistent with this, prior studies have indicated that both individuals with clinically diagnosed with PTSD, and those with self-reported symptoms who may not meet full diagnostic criteria, show changes in generalization...
2017: PloS One
https://www.readbyqxmd.com/read/28195577/hippocampus-glutamate-and-n-acetyl-aspartate-markers-of-excitotoxic-neuronal-compromise-in-posttraumatic-stress-disorder
#13
Isabelle M Rosso, David J Crowley, Marisa M Silveri, Scott L Rauch, J Eric Jensen
Hippocampus atrophy is implicated in posttraumatic stress disorder (PTSD), and may partly reflect stress-induced glutamate excitotoxicity that culminates in neuron injury and manifests as re-experiencing symptoms and other memory abnormalities. This study used high-field proton magnetic resonance spectroscopy (MRS) to determine whether PTSD is associated with lower hippocampus levels of the neuron marker N-acetyl aspartate (NAA), along with higher levels of glutamate (Glu) and Glu/NAA. We also predicted that metabolite levels would correlate with re-experiencing symptoms and lifetime trauma load...
February 13, 2017: Neuropsychopharmacology: Official Publication of the American College of Neuropsychopharmacology
https://www.readbyqxmd.com/read/28194719/the-impact-of-ptsd-on-functioning-in-patients-seeking-treatment-for-chronic-pain-and-validation-of-the-posttraumatic-diagnostic-scale
#14
Sophia Åkerblom, Sean Perrin, Marcelo Rivano Fischer, Lance M McCracken
PURPOSE: The purpose of this study was to assess the psychometric properties of a Swedish version of the Posttraumatic Diagnostic Scale (PDS); to investigate the prevalence of traumatic experiences, trauma types, and posttraumatic stress disorder (PTSD) in a sample of patients seeking treatment for chronic pain; and to examine how indices of pain-related functioning vary with a history of traumatic exposure and PTSD diagnostic status. METHOD: Participants were 463 consecutive patients with chronic pain referred for assessment at the Pain Rehabilitation Unit at Skåne University Hospital...
February 13, 2017: International Journal of Behavioral Medicine
https://www.readbyqxmd.com/read/28193287/a-comparison-of-stress-levels-coping-styles-and-psychological-morbidity-between-graduate-entry-and-traditional-undergraduate-medical-students-during-the-first-2%C3%A2-years-at-a-uk-medical-school
#15
R Zvauya, F Oyebode, E J Day, C P Thomas, L A Jones
BACKGROUND: Stress levels and psychological morbidity are high among undergraduate medical students (UGs), but there is a lack of research into the psychological health of UK graduate-entry medical students (GEs). GEs are likely to experience different (perhaps more severe) stressors and to cope with stress differently. We compared stress levels, psychological morbidity and coping styles in GE versus UG medical students studying at the same UK medical school in the same academic year...
February 13, 2017: BMC Research Notes
https://www.readbyqxmd.com/read/28190398/transforming-cytosolic-proteins-into-insoluble-and-membrane-toxic-forms-by-genetic-pathological-or-environmental-factors
#16
Jianxing Song
An increasing spectrum of diseases other than neurodegenerative diseases is characteristic of aggregation of specific proteins, while aggregation of a large number of non-specific proteins are associated with aging down to Escherichia coli. Triggered by disease-causing mutations and aging-associated damages, many well-folded cytosolic proteins become "completely insoluble" in vivo. As facilitated by our discovery in 2005 that "completely insoluble" proteins could be solubilized in unsalted water, we have deciphered that disease- and aging-associated factors act to eliminate the native folds of human VAPB-MSP and SOD1, as well as E...
February 9, 2017: Protein and Peptide Letters
https://www.readbyqxmd.com/read/28185591/life-stress-and-suicidal-ideation-in-australian-men-cross-sectional-analysis-of-the-australian-longitudinal-study-on-male-health-baseline-data
#17
Dianne Currier, Matthew J Spittal, George Patton, Jane Pirkis
BACKGROUND: Suicide is a leading cause of death in Australian males aged 18 to 55. Non-fatal suicidal behaviours and thoughts are indicators of increased risk for future suicide. Suicidal behaviour is complex and multi-determined. Research supports the involvement of stressful life events in suicide and suicidal behaviour, however the evidence regarding suicidal thoughts is less developed. This study investigates stressful life events in relation to suicidal ideation in a large cohort of adult males recruited into Ten to Men, the Australian Longitudinal Study on Male Health...
October 31, 2016: BMC Public Health
https://www.readbyqxmd.com/read/28185343/birth-and-death-evidence-for-the-same-biologic-clock
#18
Mark Phillippe, Shiela M Phillippe
In mammals, there exists a strong correlation between the average life span (in years) and the length of gestation (in days), suggesting that the same biologic clock mechanisms control both of these physiologic events. Life span is determined by a complex sequence of events leading to organismal senescence, and ultimately death. Although multiple biochemical and cellular phenomena are believed to be involved, progressive telomere shortening due to oxidative stress and loss during DNA replication is believed to be an important determinant contributing to aging, senescence, and adult death...
February 10, 2017: American Journal of Reproductive Immunology: AJRI
https://www.readbyqxmd.com/read/28184190/long-term-effects-of-chronic-buspirone-during-adolescence-reduce-the-adverse-influences-of-neonatal-inflammatory-pain-and-stress-on-adaptive-behavior-in-adult-male-rats
#19
Irina P Butkevich, Viktor A Mikhailenko, Elena A Vershinina, Anna M Aloisi, Gordon A Barr
Neonatal pain and stress induce long-term changes in pain sensitivity and behavior. Previously we found alterations in pain sensitivity in adolescent rats exposed to early-life adverse events. We tested whether these alterations have long-lasting effects and if those effects can be improved by the 5-hydroxytryptamine 1A (5-HT1A) receptor agonist buspirone injected chronically during the adolescent period. This study investigates: (1) effects of inflammatory pain (the injection of formalin into the pad of a hind paw) or stress (short maternal deprivation-isolation, MI), or their combination in 1-2-day-old rats on the adult basal pain, formalin-induced pain, anxiety and depression; (2) effects of adolescent buspirone in adult rats that experienced similar early-life insults...
2017: Frontiers in Behavioral Neuroscience
https://www.readbyqxmd.com/read/28176924/high-stakes-and-high-emotions-providing-safe-care-in-canadian-emergency-departments
#20
Samina Ali, Denise Thomson, Timothy A D Graham, Sean E Rickard, Antonia S Stang
BACKGROUND: The high-paced, unpredictable environment of the emergency department (ED) contributes to errors in patient safety. The ED setting becomes even more challenging when dealing with critically ill patients, particularly with children, where variations in size, weight, and form present practical difficulties in many aspects of care. In this commentary, we will explore the impact of the health care providers' emotional reactions while caring for critically ill patients, and how this can be interpreted and addressed as a patient safety issue...
2017: Open Access Emergency Medicine: OAEM
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