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https://www.readbyqxmd.com/read/28921675/altered-cav1-2-function-in-the-timothy-syndrome-mouse-model-produces-ascending-serotonergic-abnormalities
#1
Daniel G Ehlinger, Kathryn G Commons
Polymorphism in the gene CACNA1C, encoding the pore-forming subunit of Cav1.2 L-type calcium channels, has one of the strongest genetic linkages to schizophrenia, bipolar disorder, and major depressive disorder: psychopathologies in which serotonin signaling has been implicated. Additionally, a gain-of-function mutation in CACNA1C is responsible for the neurodevelopmental disorder Timothy Syndrome that presents with prominent behavioral features on the autism spectrum. Given an emerging role for serotonin in the etiology of autism spectrum disorders, we investigate the relationship between Cav1...
September 16, 2017: European Journal of Neuroscience
https://www.readbyqxmd.com/read/28921462/bifidobacterium-pseudocatenulatum-cect-7765-ameliorates-neuroendocrine-alterations-associated-with-an-exaggerated-stress-response-and-anhedonia-in-obese-mice
#2
Ana Agusti, A Moya-Pérez, I Campillo, S Montserrat-de la Paz, V Cerrudo, A Perez-Villalba, Yolanda Sanz
Obesity, besides being a problem of metabolic dysfunction, constitutes a risk factor for psychological disorders. Experimental models of diet-induced obesity have revealed that obese animals are prone to anxious and depressive-like behaviors. The present study aimed to evaluate whether Bifidobacterium pseudocatenulatum CECT 7765 could reverse the neurobehavioral consequences of obesity in a high-fat diet (HFD) fed mouse model via regulation of the gut-brain axis. Adult male wild-type C57BL-6 mice were fed a standard diet or HFD, supplemented with either placebo or the bifidobacterial strain for 13 weeks...
September 18, 2017: Molecular Neurobiology
https://www.readbyqxmd.com/read/28917394/childhood-maltreatment-severity-and-alcohol-use-in-adult-psychiatric-inpatients-the-mediating-role-of-emotion-regulation-difficulties
#3
Christina D Dutcher, Anka A Vujanovic, Daniel J Paulus, Brooke A Bartlett
OBJECTIVE: Emotion regulation difficulties are a potentially key mechanism underlying the association between childhood maltreatment and alcohol use in adulthood. The current study examined the mediating role of emotion regulation difficulties in the association between childhood maltreatment severity (i.e., Childhood Trauma Questionnaire total score) and past-month alcohol use severity, including alcohol consumption frequency and alcohol-related problems (i.e., number of days of alcohol problems, ratings of "bother" caused by alcohol problems, ratings of treatment importance for alcohol problems)...
September 2017: General Hospital Psychiatry
https://www.readbyqxmd.com/read/28916405/love-death-a-retrospective-and-prospective-follow-up-mortality-study-over-45-years
#4
Lena Lange, Barbra Zedler, Marcel A Verhoff, Markus Parzeller
BACKGROUND: Although sexual activity can cause moderate stress, it can cause natural death in individuals with pre-existing illness. The aim of this study was to identify additional pre-existing health problems, sexual practices, and potential circumstances that may trigger fatal events. METHODS: This medicolegal postmortem, retrospective, and prospective study is based on data of autopsies performed at the Institute of Legal Medicine of the University hospital, Goethe-University, Frankfurt/Main, Germany...
September 12, 2017: Journal of Sexual Medicine
https://www.readbyqxmd.com/read/28915145/posttraumatic-stress-disorder-symptoms-among-trauma-exposed-inpatient-adolescents-the-role-of-emotional-nonacceptance-and-anxiety-symptom-severity
#5
Andres G Viana, Abigail E Hanna, Elizabeth M Raines, Emma C Woodward, Daniel J Paulus, Erin C Berenz, Michael J Zvolensky
The present investigation examined the role of anxiety symptom severity in the relation between emotional nonacceptance and posttraumatic stress disorder (PTSD) symptoms in a diverse sample of trauma-exposed adolescents admitted for acute psychiatric care at an inpatient state hospital (N = 50; 52.0% women; 44% white; mean [SD] age, 15.1 [0.51] years; range, 12-17 years). Anxiety symptom severity partially accounted for the association between emotional nonacceptance and PTSD total symptoms, and fully accounted for the association between emotional nonacceptance and PTSD symptom cluster severity, even after controlling for covariates...
September 14, 2017: Journal of Nervous and Mental Disease
https://www.readbyqxmd.com/read/28913926/dangers-on-the-road-a-longitudinal-examination-of-passenger-initiated-violence-against-bus-drivers
#6
Biru Zhou, Richard Boyer, Stéphane Guay
This study examined the impact of workplace violence against 109 bus drivers over a 1-year span. Workplace violence is related to both psychological and work-related consequences. Our findings showed that bus drivers experienced a wide range of violence at work and the psychological consequences were devastating: Half of the participants met the diagnostic criteria for acute stress disorder within the first month following the index event. Majority of them experienced at least moderate levels of post-traumatic stress disorder (PTSD) problems over the 1-year span...
September 15, 2017: Stress and Health: Journal of the International Society for the Investigation of Stress
https://www.readbyqxmd.com/read/28905076/-life-after-ards
#7
REVIEW
B Sensen, S Braune, G de Heer, T Bein, S Kluge
Patients who survive acute respiratory distress syndrome (ARDS) often suffer from long-term physical and psychological sequelae. Lung function is commonly only mildly reduced, whereas general physical activity and walking distance are often compromised. Most markedly, these patients have a high incidence of depression, anxiety, and posttraumatic stress disorder. The rate of cognitive dysfunction is as high as 70-100% at the time of hospital discharge, and remains 46-80% and 20% one year and five years post discharge, respectively...
September 13, 2017: Medizinische Klinik, Intensivmedizin und Notfallmedizin
https://www.readbyqxmd.com/read/28900784/liver-involvement-in-urea-cycle-disorders-a-review-of-the-literature
#8
REVIEW
Adrien Bigot, Michel C Tchan, Benjamin Thoreau, Hélène Blasco, François Maillot
Urea cycle disorders (UCDs) are inborn errors of metabolism of the nitrogen detoxification pathway and encompass six principal enzymatic deficiencies. The aging of UCD patients leads to a better knowledge of the long-term natural history of the condition and to the reporting of previously unnoticed manifestations. Despite historical evidence of liver involvement in UCDs, little attention has been paid to this organ until recently. Hence, we reviewed the available scientific evidence on acute and chronic liver dysfunction and liver carcinogenesis in UCDs and discuss their pathophysiology...
September 12, 2017: Journal of Inherited Metabolic Disease
https://www.readbyqxmd.com/read/28895451/risk-factors-for-mild-traumatic-brain-injury-and-subsequent-post-traumatic-stress-disorder-and-mental-health-disorders-among-us-army-soldiers
#9
Dennis Edward Scofield, Susan P Proctor, Joseph R Kardouni, Owen T Hill, Craig J McKinnon
To determine the association of mild traumatic brain injury (mTBI) with subsequent Post-traumatic Stress Disorder (PTSD) and mental health disorders (MHD) and the intervening role of Acute Stress Disorder (ASD). This matched case-control study utilized the Total Army Injury and Health Outcomes Database (TAIHOD) to analyze Soldiers' (N=1,261,297) medical encounter data between 2002 and 2011. International Classification of Diseases, Ninth Revision (ICD-9) codes were used to identify: mTBI (following CDC surveillance definition for mTBI), MHD (ICD-9 codes for depression and anxiety, excluding PTSD), PTSD (ICD-9 309...
September 12, 2017: Journal of Neurotrauma
https://www.readbyqxmd.com/read/28894112/perinatal-malnutrition-leads-to-sexually-dimorphic-behavioral-responses-with-associated-epigenetic-changes-in-the-mouse-brain
#10
Daniel Nätt, Riccardo Barchiesi, Josef Murad, Jian Feng, Eric J Nestler, Frances A Champagne, Annika Thorsell
Childhood malnutrition is a risk factor for mental disorders, such as major depression and anxiety. Evidence shows that similar early life adversities induce sex-dependent epigenetic reprogramming. However, little is known about how genes are specifically affected by early malnutrition and the implications for males and females respectively. One relevant target is neuropeptide Y (NPY), which regulates both stress and food-intake. We studied maternal low protein diet (LPD) during pregnancy/lactation in mice...
September 11, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28893930/how-human-amygdala-and-bed-nucleus-of-the-stria-terminalis-may-drive-distinct-defensive-responses
#11
Floris Klumpers, Marijn C W Kroes, Johanna Baas, Guillén Fernández
The ability to adaptively regulate responses to the proximity of potential danger is critical to survival and imbalance in this system may contribute to psychopathology. The bed nucleus of the stria terminalis (BNST) is implicated in defensive responding during uncertain threat anticipation whereas the amygdala may drive responding upon more acute danger. This functional dissociation between the BNST and amygdala is however controversial, and human evidence scarce. Here we utilized data from two independent functional magnetic resonance imaging studies (N=108 males & N=70 (45 females)) to probe how coordination between the BNST and amygdala may regulate responses during shock anticipation and actual shock confrontation...
September 11, 2017: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/28893670/acute-psychophysiological-stress-impairs-human-associative-learning
#12
M R Ehlers, R M Todd
Addiction is increasingly discussed asa disorder of associative learning processes, with both operant and classical conditioning contributing to the development of maladaptive habits. Stress has long been known to promote drug taking and relapse and has further been shown to shift behavior from goal-directed actions towards more habitual ones. However, it remains to be investigated how acute stress may influence simple associative learning processes that occur before a habit can be established. In the present study, healthy young adults were exposed to either acute stress or a control condition half an hour before performing simple classical and operant conditioning tasks...
September 8, 2017: Neurobiology of Learning and Memory
https://www.readbyqxmd.com/read/28893381/the-association-between-prenatal-stress-and%C3%A2-externalizing-symptoms-in-childhood-evidence-from-the-avon-longitudinal-study-of%C3%A2-parents-and-children
#13
Nathalie MacKinnon, Mila Kingsbury, Liam Mahedy, Jonathan Evans, Ian Colman
BACKGROUND: It has been suggested that prenatal maternal stress may increase the risk of childhood externalizing disorders, yet no large cohort study has investigated this association across a large range of acute stressors. Our objective was to estimate the association between prenatal stressful events and risk of offspring conduct disorder and hyperactivity. METHODS: We used data from 10,184 mother-offspring pairs from the United Kingdom-based Avon Longitudinal Study of Parents and Children...
July 27, 2017: Biological Psychiatry
https://www.readbyqxmd.com/read/28879798/inhalation-exposure-of-nano-diamond-induced-oxidative-stress-in-lung-heart-and-brain
#14
Yahya Khosravi, Ahmad Salimi, Jalal Pourahmad, Parvaneh Naserzadeh, Enayatollah Seydi
1. Today, diamond nanoparticles have several industrial applications. Nano diamond (ND) as a carbon allotrope diffuses in the air easily during producing and processing procedures. 2. In this study, we investigated sub-acute exposed to ND at the exposure chamber in mice. The animals were divided into two groups (control and exposed a group to ND at the concentration of 3 µg/m(3) for 3 h/day, 5 days/week, for 30-days) in a whole-body inhalation chamber. 3. Our result showed that exposure to ND-induced the hematological and biochemical changes...
September 7, 2017: Xenobiotica; the Fate of Foreign Compounds in Biological Systems
https://www.readbyqxmd.com/read/28875851/urotensin-ii-molecular-mechanisms-of-biological-activity
#15
Andrey A Svistunov, Vadim V Tarasov, Svetlana A Shakhmardanova, Susanna S Sologova, Ekaterina T Bagaturija, Vladimir N Chubarev, Pavel A Galenko-Yaroshevsky, George E Barreto, Gjumrakch Aliev
Urotensin II (UT II) is an important factor of cellular homeostasis. This regulatory peptide is involved in the pathophysiology of many disorders. For example, it plays an important role in the pathogenesis of acute and chronic diseases, stressful and adaptive reactions of the body, in the development of cardiovascular pathologies, metabolic syndrome, inflammation, liver cirrhosis, renal failure, diabetic nephropathy, reproductive dysfunction, progression of psychosomatic, psychoendocrinal and psychiatric disorders...
August 29, 2017: Current Protein & Peptide Science
https://www.readbyqxmd.com/read/28871440/triheptanoin-versus-trioctanoin-for-long-chain-fatty-acid-oxidation-disorders-a-double-blinded-randomized-controlled-trial
#16
Melanie B Gillingham, Stephen B Heitner, Julie Martin, Sarah Rose, Amy Goldstein, Areeg Hassan El-Gharbawy, Stephanie Deward, Michael R Lasarev, Jim Pollaro, James P DeLany, Luke J Burchill, Bret Goodpaster, James Shoemaker, Dietrich Matern, Cary O Harding, Jerry Vockley
BACKGROUND: Observational reports suggest that supplementation that increases citric acid cycle intermediates via anaplerosis may have therapeutic advantages over traditional medium-chain triglyceride (MCT) treatment of long-chain fatty acid oxidation disorders (LC-FAODs) but controlled trials have not been reported. The goal of our study was to compare the effects of triheptanoin (C7), an anaplerotic seven-carbon fatty acid triglyceride, to trioctanoin (C8), an eight-carbon fatty acid triglyceride, in patients with LC-FAODs...
September 4, 2017: Journal of Inherited Metabolic Disease
https://www.readbyqxmd.com/read/28865495/repetitive-transcranial-magnetic-stimulation-rtms-for-treatment-resistant-major-depression-trmd-veteran-patients-study-protocol-for-a-randomized-controlled-trial
#17
Zhibao Mi, Kousick Biswas, J Kaci Fairchild, Anne Davis-Karim, Ciaran S Phibbs, Steven D Forman, Michael Thase, Gerald Georgette, Tamara Beale, David Pittman, Margaret Windy McNerney, Allyson Rosen, Grant D Huang, Mark George, Art Noda, Jerome A Yesavage
BACKGROUND: Evaluation of repetitive transcranial magnetic stimulation (rTMS) for treatment-resistant major depression (TRMD) in Veterans offers unique clinical trial challenges. Here we describe a randomized, double-blinded, intent-to-treat, two-arm, superiority parallel design, a multicenter study funded by the Cooperative Studies Program (CSP No. 556) of the US Department of Veterans Affairs. METHODS: We recruited medical providers with clinical expertise in treating TRMD at nine Veterans Affairs (VA) medical centers as the trial local investigators...
September 2, 2017: Trials
https://www.readbyqxmd.com/read/28864439/post-intensive-care-syndrome-in-family-decision-makers-of-long-term-acute-care-hospital-patients
#18
Amy Petrinec
BACKGROUND: Family members of critically ill patients experience indications of post-intensive care syndrome, including anxiety, depression, and posttraumatic stress disorder. Despite increased use of long-term acute care hospitals for critically ill patients, little is known about the impact of long-term hospitalization on patients' family members. OBJECTIVES: To examine indications of post-intensive care syndrome, coping strategies, and health-related quality of life among family decision makers during and after patients' long-term hospitalization...
September 2017: American Journal of Critical Care: An Official Publication, American Association of Critical-Care Nurses
https://www.readbyqxmd.com/read/28860710/alginate-oligosaccharide-alleviates-myocardial-reperfusion-injury-by-inhibiting-nitrative-and-oxidative-stress-and-endoplasmic-reticulum-stress-mediated-apoptosis
#19
Jun-Jie Guo, Feng-Qiang Xu, Yong-Hong Li, Jian Li, Xin Liu, Xiao-Fan Wang, Long-Gang Hu, Yi An
Alginate oligosaccharide (AOS) has recently demonstrated the ability to protect against acute doxorubicin cardiotoxicity and neurodegenerative disorders by inhibiting oxidative stress and endoplasmic reticulum (ER) stress-mediated apoptosis, which are both involved in myocardial ischemia/reperfusion (I/R) injury. In the present study, we investigated whether pretreatment with AOS protects against myocardial I/R injury in mice and explored potential cardioprotective mechanisms. AOS pretreatment significantly decreased the infarct size, reduced the cardiac troponin-I concentration, and ameliorated the cardiac dysfunction...
2017: Drug Design, Development and Therapy
https://www.readbyqxmd.com/read/28859530/hypothalamic-pituitary-adrenal-and-hypothalamic-pituitary-gonadal-axes-sex-differences-in-regulation-of-stress-responsivity
#20
Mario G Oyola, Robert J Handa
Gonadal hormones play a key role in the establishment, activation, and regulation of the hypothalamic-pituitary-adrenal (HPA) axis. By influencing the response and sensitivity to releasing factors, neurotransmitters, and hormones, gonadal steroids help orchestrate the gain of the HPA axis to fine-tune the levels of stress hormones in the general circulation. From early life to adulthood, gonadal steroids can differentially affect the HPA axis, resulting in sex differences in the responsivity of this axis. The HPA axis influences many physiological functions making an organism's response to changes in the environment appropriate for its reproductive status...
August 31, 2017: Stress: the International Journal on the Biology of Stress
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