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https://www.readbyqxmd.com/read/28340089/how-embryophytic-is-the-biosynthesis-of-phenylpropanoids-and-their-derivatives-in-streptophyte-algae
#1
Jan de Vries, Sophie de Vries, Claudio H Slamovits, Laura E Rose, John M Archibald
The origin of land plants from algae is a long-standing question in evolutionary biology. It is becoming increasingly clear that many characters that were once assumed to be "embryophyte-specific" can in fact be found in their closest algal relatives, the streptophyte algae. One such case is the phenylpropanoid pathway. While biochemical data indicate that streptophyte algae harbor lignin-like components, the phenylpropanoid core pathway, which serves as the backbone of lignin biosynthesis, has been proposed to have arisen at the base of the land plants...
March 13, 2017: Plant & Cell Physiology
https://www.readbyqxmd.com/read/28339816/post-mortem-toxicology-in-young-sudden-cardiac-death-victims-a-nationwide-cohort-study
#2
Thea Bjune, Bjarke Risgaard, Line Kruckow, Charlotte Glinge, Ole Ingemann-Hansen, Peter Mygind Leth, Kristian Linnet, Jytte Banner, Bo Gregers Winkel, Jacob Tfelt-Hansen
Aims: Several drugs increase the risk of ventricular fibrillation and sudden cardiac death (SCD). We aimed to investigate in detail the toxicological findings of all young SCD throughout Denmark. Methods and results: Deaths in persons aged 1-49 years were included over a 10-year period. Death certificates and autopsy reports were retrieved and read to identify cases of sudden death and establish cause of death. All medico-legal autopsied SCD were included and toxicological reports collected...
February 27, 2017: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
https://www.readbyqxmd.com/read/28339517/omics-studies-their-use-in-diagnosis-and-reclassification-of-sle-and-other-systemic-autoimmune-diseases
#3
Maria Teruel, Chris Chamberlain, Marta E Alarcón-Riquelme
Omics studies of systemic autoimmune diseases (SADs) in general, and SLE in particular, have delivered isolated information from transcriptome, epigenome, genome, cytokine and metabolome analyses. Such analyses have resulted in the identification of disease susceptibility genes and the description of IFN expression signatures, allowing extensive insight into the mechanisms of disease and the development of new therapies. Access to such technologies allows the recognition of patterns of disease at a pathway level, thereby, to reclassify SLE and other SADs and to develop new therapeutics from a personalized perspective...
October 19, 2016: Rheumatology
https://www.readbyqxmd.com/read/28339467/a-non-canonical-rna-degradation-pathway-suppresses-rnai-dependent-epimutations-in-the-human-fungal-pathogen-mucor-circinelloides
#4
Silvia Calo, Francisco E Nicolás, Soo Chan Lee, Ana Vila, Maria Cervantes, Santiago Torres-Martinez, Rosa M Ruiz-Vazquez, Maria E Cardenas, Joseph Heitman
Mucorales are a group of basal fungi that includes the casual agents of the human emerging disease mucormycosis. Recent studies revealed that these pathogens activate an RNAi-based pathway to rapidly generate drug-resistant epimutant strains when exposed to stressful compounds such as the antifungal drug FK506. To elucidate the molecular mechanism of this epimutation pathway, we performed a genetic analysis in Mucor circinelloides that revealed an inhibitory role for the non-canonical RdRP-dependent Dicer-independent silencing pathway, which is an RNAi-based mechanism involved in mRNA degradation that was recently identified...
March 24, 2017: PLoS Genetics
https://www.readbyqxmd.com/read/28337923/the-communicative-function-of-sad-facial-expressions
#5
Lawrence Ian Reed, Peter DeScioli
What are the communicative functions of sad facial expressions? Research shows that people feel sadness in response to losses but it's unclear whether sad expressions function to communicate losses to others and if so, what makes these signals credible. Here we use economic games to test the hypothesis that sad expressions lend credibility to claims of loss. Participants play the role of either a proposer or recipient in a game with a fictional backstory and real monetary payoffs. The proposers view a (fictional) video of the recipient's character displaying either a neutral or sad expression paired with a claim of loss...
January 2017: Evolutionary Psychology: An International Journal of Evolutionary Approaches to Psychology and Behavior
https://www.readbyqxmd.com/read/28334441/flexible-parasympathetic-responses-to-sadness-facilitate-spontaneous-affect-regulation
#6
Jonathan P Stange, Jessica L Hamilton, David M Fresco, Lauren B Alloy
The ability of the parasympathetic nervous system to flexibly adapt to changes in environmental context is thought to serve as a physiological indicator of self-regulatory capacity, and deficits in parasympathetic flexibility appear to characterize affective disorders such as depression. However, whether parasympathetic flexibility (vagal withdrawal to emotional or environmental challenges such as sadness, and vagal augmentation during recovery from sadness) could facilitate the effectiveness of adaptive affect regulation strategies is not known...
March 23, 2017: Psychophysiology
https://www.readbyqxmd.com/read/28333144/aberrant-ipsc-derived-human-astrocytes-in-alzheimer-s-disease
#7
V C Jones, R Atkinson-Dell, A Verkhratsky, L Mohamet
The pathological potential of human astroglia in Alzheimer's disease (AD) was analysed in vitro using induced pluripotent stem cell (iPSC) technology. Here, we report development of a human iPSC-derived astrocyte model created from healthy individuals and patients with either early-onset familial AD (FAD) or the late-onset sporadic form of AD (SAD). Our chemically defined and highly efficient model provides >95% homogeneous populations of human astrocytes within 30 days of differentiation from cortical neural progenitor cells (NPCs)...
March 23, 2017: Cell Death & Disease
https://www.readbyqxmd.com/read/28332851/empathy-and-facial-expression-recognition-in-children-with-and-without-attention-deficit-hyperactivity-disorder-effects-of-stimulant-medication-on-empathic-skills-in-children-with-attention-deficit-hyperactivity-disorder
#8
Funda Gumustas, Ibrahim Yilmaz, Yasemin Yulaf, Sebla Gokce, Osman Sabuncuoglu
OBJECTIVE: The aim of this study was to compare children and adolescents with attention-deficit/hyperactivity disorder (ADHD) to healthy children and adolescents in terms of state and trait empathy and emotion expression recognition skills. The goal was also to determine whether there are changes in emotion recognition and empathy measures in children with ADHD after methylphenidate (MPH) treatment. METHODS: The research sample consisted of outpatient drug-naive children and adolescents between the age of 8 and 14 years (n = 65) with ADHD according to the Diagnostic and Statistical Manual of Mental Disorders, 4th ed...
March 23, 2017: Journal of Child and Adolescent Psychopharmacology
https://www.readbyqxmd.com/read/28332405/association-between-social-interaction-and-affect-in-nursing-home-residents-with-dementia
#9
Ying-Ling Jao, Eric Loken, Margaret MacAndrew, Kimberly Van Haitsma, Ann Kolanowski
BACKGROUND: Social interactions that lead to positive affect are fundamental to human well-being. However, individuals with dementia are challenged to achieve positive social interaction. It is unclear how social interactions influence affect in people with dementia. This study examined the association between social interactions and affect in nursing home residents with dementia. METHODS: This repeated measures study used baseline data from a clinical trial in which 126 residents from 12 nursing homes were enrolled...
March 23, 2017: Aging & Mental Health
https://www.readbyqxmd.com/read/28332121/impairment-in-emotion-perception-from-body-movements-in-individuals-with-bipolar-i-and-bipolar-ii-disorder-is-associated-with-functional-capacity
#10
Anja Vaskinn, Trine Vik Lagerberg, Thomas D Bjella, Carmen Simonsen, Ole A Andreassen, Torill Ueland, Kjetil Sundet
BACKGROUND: Individuals with bipolar disorder present with moderate impairments in social cognition during the euthymic state. The impairment extends to theory of mind and to the perception of emotion in faces and voices, but it is unclear if emotion perception from body movements is affected. The main aim of this study was to examine if participants with bipolar disorder perform worse than healthy control participants on a task using point-light displays of human full figures moving in a manner indicative of a basic emotion (angry, happy, sad, fearful, neutral/no emotion)...
December 2017: International Journal of Bipolar Disorders
https://www.readbyqxmd.com/read/28331501/is-emotion-recognition-related-to-core-symptoms-of-childhood-adhd
#11
Mehdi Tehrani-Doost, Gholamreza Noorazar, Zahra Shahrivar, Anahita Khorrami Banaraki, Parvane Farhad Beigi, Nahid Noorian
OBJECTIVE: Children with attention deficit/hyperactivity disorder (ADHD) have some problems in social relationships which may be related to their deficit in recognizing emotional expressions. It is not clear if the deficit in emotion recognition is secondary to core symptoms of ADHD or can be considered as an independent symptom. This study aimed to evaluate the ability of detecting emotional faces and its relation to inattention and hyperactivity-impulsivity in children with ADHD compared to a typically developing (TD) group...
2017: Journal of the Canadian Academy of Child and Adolescent Psychiatry
https://www.readbyqxmd.com/read/28329660/predictors-of-tanning-dependence-in-white-non-hispanic-females-and-males
#12
Brenda Cartmel, Susan T Mayne, Allen E Bale, Joel Gelernter, Andrew DeWan, David J Leffell, Sherry Pagoto, Peter Spain, Leah M Ferrucci
Growing evidence suggests some individuals may exhibit dependence to ultraviolet light, a known carcinogen; however, few studies have investigated predictors of tanning dependence (TD).A sub-set of early-onset basal cell carcinoma case-control study participants completed an online survey. The modified-Cut down, Annoyed, Guilty, Eye-opener (mCAGE) and a questionnaire based on the addiction criteria of the Diagnostic and Statistical Manual of Mental Disorders, Fourth Edition, Text Revision (mDSM-IV-TR) were used to classify participants having'Symptoms of TD' if they met criteria for TD on both questionnaires, 'Tendency for TD' if met criteria on only one questionnaire, or 'Not TD'...
September 15, 2016: Dermatology Online Journal
https://www.readbyqxmd.com/read/28326547/behavioural-responses-to-facial-and-postural-expressions-of-emotion-an-interpersonal-circumplex-approach
#13
Marije Aan Het Rot, Violeta Enea, Ion Dafinoiu, Sorina Iancu, Steluţa A Taftă, Mariana Bărbuşelu
While the recognition of emotional expressions has been extensively studied, the behavioural response to these expressions has not. In the interpersonal circumplex, behaviour is defined in terms of communion and agency. In this study, we examined behavioural responses to both facial and postural expressions of emotion. We presented 101 Romanian students with facial and postural stimuli involving individuals ('targets') expressing happiness, sadness, anger, or fear. Using an interpersonal grid, participants simultaneously indicated how communal (i...
March 21, 2017: British Journal of Psychology
https://www.readbyqxmd.com/read/28325901/correlates-of-social-exclusion-in-social-anxiety-disorder-an-fmri-study
#14
Alexandre Heeren, Laurence Dricot, Joël Billieux, Pierre Philippot, Delphine Grynberg, Philippe de Timary, Pierre Maurage
Cognitive models posit that social anxiety disorder (SAD) is maintained by biased information-processing vis-à-vis threat of social exclusion. However, uncertainty still abounds regarding the very nature of this sensitivity to social exclusion in SAD. Especially, brain alterations related to social exclusion have not been explored in SAD. Our primary purpose was thus to determine both the self-report and neural correlates of social exclusion in this population. 23 patients with SAD and 23 matched nonanxious controls played a virtual game ("Cyberball") during fMRI recording...
March 21, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28324317/anxiety-and-depression-symptoms-and-migraine-a-symptom-based-approach-research
#15
Mario Fernando Prieto Peres, Juliane P P Mercante, Patricia R Tobo, Helder Kamei, Marcelo Eduardo Bigal
BACKGROUND: Anxiety and mood disorders have been shown to be the most relevant psychiatric comorbidities associated with migraine, influencing its clinical course, treatment response, and clinical outcomes. Limited information is available on how specific anxiety and depression symptoms are related to migraine. Symptoms-based approach, a current trend in mental health research, may improve our understanding in migraine comorbidity. The purpose of this study was to analyze how anxiety and depression aspects are related to migraine through a symptom-based approach...
December 2017: Journal of Headache and Pain
https://www.readbyqxmd.com/read/28323534/children-s-recognition-of-emotional-facial-expressions-through-photographs-and-drawings
#16
Claire Brechet
The author's purpose was to examine children's recognition of emotional facial expressions, by comparing two types of stimulus: photographs and drawings. The author aimed to investigate whether drawings could be considered as a more evocative material than photographs, as a function of age and emotion. Five- and 7-year-old children were presented with photographs and drawings displaying facial expressions of 4 basic emotions (i.e., happiness, sadness, anger, and fear) and were asked to perform a matching task by pointing to the face corresponding to the target emotion labeled by the experimenter...
March 21, 2017: Journal of Genetic Psychology
https://www.readbyqxmd.com/read/28320692/longitudinal-changes-in-psychological-states-in-online-health-community-members-understanding-the-long-term-effects-of-participating-in-an-online-depression-community
#17
Albert Park, Mike Conway
BACKGROUND: Major depression is a serious challenge at both the individual and population levels. Although online health communities have shown the potential to reduce the symptoms of depression, emotional contagion theory suggests that negative emotion can spread within a community, and prolonged interactions with other depressed individuals has potential to worsen the symptoms of depression. OBJECTIVE: The goals of our study were to investigate longitudinal changes in psychological states that are manifested through linguistic changes in depression community members who are interacting with other depressed individuals...
March 20, 2017: Journal of Medical Internet Research
https://www.readbyqxmd.com/read/28319033/characterization-of-hierarchical-%C3%AE-moo-sub-3-sub-plates-toward-resistive-heating-synthesis-electrochemical-activity-of-%C3%AE-moo-sub-3-sub-pt-modified-electrode-toward-methanol-oxidation-in-neutral-ph
#18
Emanuela Filippo, Francesca Baldassarre, Marco Tepore, Maria Rachele Guascito, Daniela Chirizzi, Antonio Tepore
The growth of MoO<sub>3</sub> hierarchical plates was obtained by direct resistive heating of molybdenum foil at ambient pressure in absence of any catalysts and templates. Plates synthesized after 60 min resistive heating typically growth in an single-crystalline orthorhombic structure that develop preferentially in [001] direction, as characterized by HRTEM, SAD and Raman-scattering measurements. They are about 100-200nm in thickness and a few tens micrometers in length. As heating time proceeds to 80 min, plates of α-MoO<sub>3</sub> form a branched structure...
March 20, 2017: Nanotechnology
https://www.readbyqxmd.com/read/28317414/anxiety-depression-and-the-suicidal-spectrum-a-latent-class-analysis-of-overlapping-and-distinctive-features
#19
Matthew C Podlogar, Megan L Rogers, Ian H Stanley, Melanie A Hom, Bruno Chiurliza, Thomas E Joiner
Anxiety and depression diagnoses are associated with suicidal thoughts and behaviours. However, a categorical understanding of these associations limits insight into identifying dimensional mechanisms of suicide risk. This study investigated anxious and depressive features through a lens of suicide risk, independent of diagnosis. Latent class analysis of 97 depression, anxiety, and suicidality-related items among 616 psychiatric outpatients indicated a 3-class solution, specifically: (1) a higher suicide-risk class uniquely differentiated from both other classes by high reported levels of depression and anxious arousal; (2) a lower suicide-risk class that reported levels of anxiety sensitivity and generalised worry comparable to Class 1, but lower levels of depression and anxious arousal; and (3) a low to non-suicidal class that reported relatively low levels across all depression and anxiety measures...
March 20, 2017: Cognition & Emotion
https://www.readbyqxmd.com/read/28316577/is-sadness-only-one-emotion-psychological-and-physiological-responses-to-sadness-induced-by-two-different-situations-loss-of-someone-and-failure-to-achieve-a-goal
#20
Mariko Shirai, Naoto Suzuki
We investigated whether sadness elicited by two different situations-loss of someone (loss) and failure to achieve a goal (failure)-had different physiological responses. Seventy-four participants were randomly assigned to one of three conditions (loss, failure, and neutral). Physiological responses were recorded during an imagery task that was designed to evoke sadness. The results of characteristics in the subjective ratings indicated that loss-evoked sadness was only associated with expressive words relating to tears...
2017: Frontiers in Psychology
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