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https://www.readbyqxmd.com/read/29156427/a-longitudinal-analysis-of-the-effects-of-neuroticism-and-extraversion-on-subjective-well-being-in-patients-with-schizophrenia
#1
Floor A van Dijk, Frederike Schirmbeck, Lieuwe de Haan
One in five patients with a psychotic disorder has persistent low subjective well-being (SWB), which is associated with a poorer prognosis. In schizophrenia patients, personality traits are associated with SWB. The present study aims to evaluate whether neuroticism and extraversion influence SWB in patients with a psychotic disorder and healthy controls over the course of time. In 186 patients and 126 healthy control subjects, SWB was measured with the Subjective Well-being under Neuroleptics-20 (SWN) scale at baseline, three years and six years...
November 8, 2017: Psychiatry Research
https://www.readbyqxmd.com/read/29155005/effects-of-genetic-and-environmental-risk-for-schizophrenia-on-hippocampal-activity-and-psychosis-like-behavior-in-mice
#2
Daniel Scott, Carol A Tamminga
Schizophrenia is a serious mental illness most notably characterized by psychotic symptoms. In humans, psychotic disorders are associated with specific hippocampal pathology. However, animal model systems for psychosis often lack this pathology, and have been weak in providing a representation of psychosis. We utilized a double-risk model system combining genetic risk with environmental stress. We hypothesized these factors will induce hippocampal subfield pathology consistent with human findings, as well as behavioral phenotypes relevant to psychosis...
November 15, 2017: Behavioural Brain Research
https://www.readbyqxmd.com/read/29154800/the-use-of-model-fish-as-tools-for-research-the-biological-mechanisms-of-cooperative-behaviour-a-future-for-translational-research-concerning-social-anxiety-disorders
#3
REVIEW
Marta C Soares, Sónia C Cardoso, Tamires Dos Santos Carvalho, Caio Maximino
Human societies demand of its composing members the development of a wide array of social tools and strategies. A notable example is human outstanding ability to cooperate with others, in all its complex forms, depicting the reality of a highly demanding social framework in which humans need to be integrated as to attain physical and mental benefits. Considering the importance of social engagement, it's not entirely unexpected that most psychiatric disorders involve some disruption of normal social behaviour, ranging from an abnormal absence to a significant increase of social functioning...
November 14, 2017: Progress in Neuro-psychopharmacology & Biological Psychiatry
https://www.readbyqxmd.com/read/29153020/-williams-beuren-syndrome-williams-syndrome-case-report
#4
Györgyi Miklós, György Fekete, Irén Haltrich, Miklós Tóth, Péter Reismann
Williams syndrome is a rare genetic disorder, that occurs equally in all ethnic groups and both sexes. The diagnosis might be missed during childhood in mild cases. However, establishing the diagnosis is important, not only to find the cause of intellectual disability but to look for cardiovascular, endocrine, psychiatry, urology and other conditions, which can occur at any age in the patients' lifetime. This case report presents the story of 47-year-old woman, who was admitted with haematemesis. During her stay on the ward, in the light of the distinctive facial features, mental retardation, and social behaviour patterns, the possibility of Williams syndrome emerged...
November 2017: Orvosi Hetilap
https://www.readbyqxmd.com/read/29152902/the-genetics-of-human-personality
#5
REVIEW
Sandra Sanchez-Roige, Joshua C Gray, James K MacKillop, Chi-Hua Chen, Abraham A Palmer
Personality traits are the relatively enduring patterns of thoughts, feelings, and behaviors that reflect the tendency to respond in certain ways under certain circumstances. Twin and family studies have demonstrated that personality traits are moderately heritable, and can predict various lifetime outcomes, including psychopathology. The Research Domain Criteria (RDoC) characterizes psychiatric diseases as extremes of normal tendencies, including specific personality traits. This implies that heritable variation in personality traits, such as neuroticism, would share a common genetic basis with psychiatric diseases, such as major depressive disorder (MDD)...
November 20, 2017: Genes, Brain, and Behavior
https://www.readbyqxmd.com/read/29151084/formal-neurocognitive-testing-in-60-patients-with-congenital-hyperinsulinism
#6
Anja Ludwig, Simone Enke, Janine Heindorf, Susann Empting, Thomas Meissner, Klaus Mohnike
BACKGROUND: Congenital hyperinsulinism (CHI) is hallmarked by persistent hypoketotic hypoglycemia in infancy. In the majority of all patients, CHI is caused by mutations in the KATP channel genes ABCC8 and KCNJ11, but other genes in the insulin-regulatory pathway have also been described. Repeated episodes of hypoglycemia include an increased risk of seizures and intellectual disability. So far, controlled psychometric studies on cognitive, motor, speech, and social-emotional outcome of CHI patients are missing...
November 17, 2017: Hormone Research in Pædiatrics
https://www.readbyqxmd.com/read/29150991/population-based-differences-in-immune-system-response-contribute-to-an-increased-risk-of-schizophrenia-in-african-migrants
#7
Milica J Nesic, Nadja P Maric
Among the highest incidences of schizophrenia is the one documented in second-generation migrants of African descent in the Western countries. Interestingly, people of African and European ancestry demonstrate significant genetic-based differences in immune system regulation and response. As a result, the pro-inflammatory phenotype is more pronounced in people of African descent than it is in Europeans. At the same time, the role of the immune system in the etiology of schizophrenia is gaining increased recognition...
November 18, 2017: Reviews in the Neurosciences
https://www.readbyqxmd.com/read/29150144/atypical-depression-and-non-atypical-depression-is-hpa-axis-function-a-biomarker-a-systematic-review
#8
REVIEW
Mario F Juruena, Mariia Bocharova, Bruno Agustini, Allan H Young
BACKGROUND: The link between the abnormalities of the Hypothalamic-pituitary-adrenal (HPA) axis and depression has been one of the most consistently reported findings in psychiatry. At the same time, multiple studies have demonstrated a stronger association between the increased activation of HPA-axis and melancholic, or endogenous depression subtype. This association has not been confirmed for the atypical subtype, and some researchers have suggested that as an antinomic depressive subtype, it may be associated with the opposite type, i...
October 6, 2017: Journal of Affective Disorders
https://www.readbyqxmd.com/read/29148569/exome-sequence-analysis-and-follow-up-genotyping-implicates-rare-ulk1-variants-to-be-involved-in-susceptibility-to-schizophrenia
#9
Mariam M Al Eissa, Alessia Fiorentino, Sally I Sharp, Niamh L O'Brien, Kate Wolfe, Giovanni Giaroli, David Curtis, Nicholas J Bass, Andrew McQuillin
Schizophrenia (SCZ) is a severe, highly heritable psychiatric disorder. Elucidation of the genetic architecture of the disorder will facilitate greater understanding of the altered underlying neurobiological mechanisms. The aim of this study was to identify likely aetiological variants in subjects affected with SCZ. Exome sequence data from a SCZ cas-control sample from Sweden was analysed for likely aetiological variants using a weighted burden test. Suggestive evidence implicated the UNC-51-like kinase (ULK1) gene, and it was observed that four rare variants that were more common in the Swedish SCZ cases were also more common in UK10K SCZ cases, as compared to obesity cases...
November 17, 2017: Annals of Human Genetics
https://www.readbyqxmd.com/read/29144220/is-low-cognitive-functioning-a-predictor-or-consequence-of-major-depressive-disorder-a-test-in-two-longitudinal-birth-cohorts
#10
Jonathan D Schaefer, Matthew A Scult, Avshalom Caspi, Louise Arseneault, Daniel W Belsky, Ahmad R Hariri, Honalee Harrington, Renate Houts, Sandhya Ramrakha, Richie Poulton, Terrie E Moffitt
Cognitive impairment has been identified as an important aspect of major depressive disorder (MDD). We tested two theories regarding the association between MDD and cognitive functioning using data from longitudinal cohort studies. One theory, the cognitive reserve hypothesis, suggests that higher cognitive ability in childhood decreases risk of later MDD. The second, the scarring hypothesis, instead suggests that MDD leads to persistent cognitive deficits following disorder onset. We tested both theories in the Dunedin Study, a population-representative cohort followed from birth to midlife and assessed repeatedly for both cognitive functioning and psychopathology...
November 16, 2017: Development and Psychopathology
https://www.readbyqxmd.com/read/29144157/the-influence-of-sunlight-exposure-on-hospitalization-in-emergency-psychiatry
#11
Andrea Aguglia, Antonio Borsotti, Francesco Cuniberti, Gianluca Serafini, Mario Amore, Giuseppe Maina
OBJECTIVE: Environmental conditions during early life may affect individual vulnerability to both physiological changes as well as psychiatric conditions, especially in those with a genetic susceptibility. Among all factors, sunlight exposure intensity has a crucial effect on affecting circadian functions high-risk individuals. A potential explanation of this relation is that excessive sunlight exposure is able to impair biological mechanisms, possibly through the dysregulation of serotonin and/or melatonin production/metabolism...
November 16, 2017: Chronobiology International
https://www.readbyqxmd.com/read/29143597/genotypic-and-phenotypic-features-of-all-spanish-patients-with-mcardle-disease-a-2016-update
#12
Alfredo Santalla, Gisela Nogales-Gadea, Alberto Blázquez Encinar, Irene Vieitez, Adrian González-Quintana, Pablo Serrano-Lorenzo, Inés García Consuegra, Sara Asensio, Alfonsina Ballester-Lopez, Guillem Pintos-Morell, Jaume Coll-Cantí, Helios Pareja-Galeano, Jorge Díez-Bermejo, Margarita Pérez, Antoni L Andreu, Tomàs Pinós, Joaquín Arenas, Miguel A Martín, Alejandro Lucia
BACKGROUND: We recently described the genotype/phenotype features of all Spanish patients diagnosed with McArdle disease as of January 2011 (n = 239, prevalence of ~1/167,000) (J Neurol Neurosurg Psychiatry 2012;83:322-8). Several caveats were however identified suggesting that the prevalence of the disease is actually higher. METHODS: We have now updated main genotype/phenotype data, as well as potential associations within/between them, of all Spanish individuals currently diagnosed with McArdle disease (December 2016)...
November 14, 2017: BMC Genomics
https://www.readbyqxmd.com/read/29142105/the-nde1-genomic-locus-can-affect-treatment-of-psychiatric-illness-through-gene-expression-changes-related-to-microrna-484
#13
Nicholas J Bradshaw, Liisa Ukkola-Vuoti, Maiju Pankakoski, Amanda B Zheutlin, Alfredo Ortega-Alonso, Minna Torniainen-Holm, Vishal Sinha, Sebastian Therman, Tiina Paunio, Jaana Suvisaari, Jouko Lönnqvist, Tyrone D Cannon, Jari Haukka, William Hennah
Genetic studies of familial schizophrenia in Finland have observed significant associations with a group of biologically related genes, DISC1, NDE1, NDEL1, PDE4B and PDE4D, the 'DISC1 network'. Here, we use gene expression and psychoactive medication use data to study their biological consequences and potential treatment implications. Gene expression levels were determined in 64 individuals from 18 families, while prescription medication information has been collected over a 10-year period for 931 affected individuals...
November 2017: Open Biology
https://www.readbyqxmd.com/read/29139377/laboratory-colonization-and-mass-rearing-of-phlebotomine-sand-flies-diptera-psychodidae
#14
Jérôme Depaquit, Bernard Pesson, Denis Augot, James Gordon Campbell Hamilton, Phillip Lawyer, Nicole Léger, Phillip Lawyer, Mireille Killick-Kendrick, Tobin Rowland, Edgar Rowton, Petr Volf
Laboratory colonies of phlebotomine sand flies are necessary for experimental study of their biology, behaviour and mutual relations with disease agents and for testing new methods of vector control. They are indispensable in genetic studies and controlled observations on the physiology and behaviour of sand flies, neglected subjects of high priority. Colonies are of particular value for screening insecticides. Colonized sand flies are used as live vector models in a diverse array of research projects, including xenodiagnosis, that are directed toward control of leishmaniasis and other sand fly-associated diseases...
2017: Parasite: Journal de la Société Française de Parasitologie
https://www.readbyqxmd.com/read/29138398/characterization-of-macrophages-from-schizophrenia-patients
#15
Paul R Ormel, Hans C van Mierlo, Manja Litjens, Miriam E van Strien, Elly M Hol, René S Kahn, Lot D de Witte
Genetic, epidemiological and post mortem studies have described an association between schizophrenia (SCZ) and the immune system. Microglia, the tissue-resident macrophages of the brain, not only play an essential role in inflammatory processes, but also in neurodevelopment and synapse refinement. It has therefore been hypothesized that aberrant functioning of these myeloid immune cells is involved in SCZ pathogenesis. Until now cellular research into the role of myeloid cells in SCZ has been limited to monocytes and functional assays are lacking...
November 14, 2017: NPJ Schizophrenia
https://www.readbyqxmd.com/read/29137046/multiple-adverse-drug-reactions-and-genetic-polymorphism-testing-a-case-report-with-negative-result
#16
Ana Lucía Arellano, Marta Martin-Subero, Mar Monerris, Adrián LLerena, Magí Farré, Eva Montané
RATIONALE: Defects in drug metabolic pathways could explain why some patients have a history of multiple adverse drug reactions (ADR); therefore we aimed to analyze genetic polymorphisms in a patient with multiple ADR related to drugs with a common hepatic metabolic pathway through CYP2D6. PATIENT CONCERNS: We report a patient with psychosis and hypertension related to amitriptyline, tramadol, and duloxetine within a 2-year period. INTERVENTIONS AND OUTCOMES: A pharmacogenetic test was performed to assess the causative role of the CYP2D6 enzyme, but did not demonstrate a metabolic deficiency...
November 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29136284/patient-outcomes-of-genetic-counseling-assessing-the-impact-of-different-approaches-to-family-history-collection
#17
C Slomp, E Morris, A Inglis, A Lehman, J Austin
No studies have evaluated whether different modalities for collection of family history data influence patient outcomes of genetic counseling. We retrospectively compared outcomes of genetic counseling between patients whose family history (Fhx) was collected: a) via telephone prior to their appointment (FhxPrior), or b) during the appointment (FhxDuring). We used a psychiatric genetic counseling clinic database, where information about demographics and Fhx timing is recorded and patients complete the Genetic Counseling Outcomes Scale (GCOS, measuring empowerment) and Illness Management Self-Efficacy Scale (IMSES) immediately prior to (T1) and one-month after their appointment (T2)...
November 14, 2017: Clinical Genetics
https://www.readbyqxmd.com/read/29134781/clinical-and-molecular-genetic-characterization-of-a-male-patient-with-sensenbrenner-syndrome-cranioectodermal-dysplasia-and-biallelic-wdr35-mutations
#18
Joanna Walczak-Sztulpa, Anna Wawrocka, Anna Swiader-Lesniak, Magdalena Socha, Aleksander Jamsheer, Dorota Drozdz, Anna Latos-Bielenska, Katarzyna Zachwieja
BACKGROUND: Sensenbrenner syndrome (cranioectodermal dysplasia, CED) is a very rare autosomal recessive ciliopathy first described by Judith Sensenbrenner in 1975. CED is a complex disorder characterized by craniofacial, skeletal, and ectodermal abnormalities. The clinical symptoms are variable and the CED phenotype may present intrafamilial and interfamilial differences. Sensenbrenner syndrome belongs to a group of ciliary chondrodysplasias and is a genetically heterogeneous disease...
November 14, 2017: Birth defects research
https://www.readbyqxmd.com/read/29132028/dna-methylation-and-genetic-variation-of-the-angiotensin-converting-enzyme-ace-in-depression
#19
Dilys Lam, Marie-Laure Ancelin, Karen Ritchie, Richard Saffery, Joanne Ryan
BACKGROUND: Depression is one of the most prevalent psychiatric disorders, and in older persons is associated with high levels of comorbidity and under-treatment. Dysfunction of the hypothalamic-pituitary-adrenal (HPA) stress axis is consistently observed in the older population as well as depressed patients, with the angiotensin converting enzyme (ACE) a key regulator of the stress response. Epigenetic regulation of ACE may play an important role in HPA axis (dys)regulation. OBJECTIVE: To investigate ACE promoter methylation as a biomarker of late-life depression, and its association with genetic variation and cortisol secretion...
November 8, 2017: Psychoneuroendocrinology
https://www.readbyqxmd.com/read/29131050/the-clinical-inadequacy-of-the-placebo-model-and-the-development-of-an-alternative-conceptual-framework
#20
Giovanni A Fava, Jenny Guidi, Chiara Rafanelli, Karl Rickels
Placebo effects are often attributed to clinical interactions and contextual factors that affect expectations of the patient about the treatment and result in symptom changes. The prevailing conceptualization consists of an undifferentiated placebo response that needs to be minimized in controlled investigations and maximized in clinical practice. However, treatment outcome is the cumulative result of the interaction of several classes of variables with a selected treatment: living conditions (housing, nutrition, work environment, social support), patient characteristics (age, sex, genetics, general health conditions, personality, well-being), illness features and previous therapeutic experience, self-management, and treatment setting (physician's attitude and attention, illness behavior)...
November 3, 2017: Psychotherapy and Psychosomatics
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