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https://www.readbyqxmd.com/read/29144883/what-was-once-essential-may-become-detrimental-the-mediating-role-of-depersonalization-in-the-relationship-between-childhood-emotional-maltreatment-and-psychological-distress-in-adults
#1
Aoife Ó Laoide, Jonathan Egan, Kristin Osborn
Depersonalization (DP) is a dissociative phenomenon, characterised by feeling "unreal" or detached from one's own emotions, thoughts and behaviour (APA, 2013). It is considered a defense mechanism, employed in response to overwhelming events, whereby thoughts and emotions are suppressed in order to enhance the individual's' capacity to function in traumatic environments. DP has been found to co-occur with anxiety and depressive disorders and childhood emotional maltreatment (EM) has been identified as an important predisposing factor...
November 16, 2017: Journal of Trauma & Dissociation
https://www.readbyqxmd.com/read/29143810/next-generation-pacemakers-from-small-devices-to-biological-pacemakers
#2
REVIEW
Eugenio Cingolani, Joshua I Goldhaber, Eduardo Marbán
Electrogenesis in the heart begins in the sinoatrial node and proceeds down the conduction system to originate the heartbeat. Conduction system disorders lead to slow heart rates that are insufficient to support the circulation, necessitating implantation of electronic pacemakers. The typical electronic pacemaker consists of a subcutaneous generator and battery module attached to one or more endocardial leads. New leadless pacemakers can be implanted directly into the right ventricular apex, providing single-chamber pacing without a subcutaneous generator...
November 16, 2017: Nature Reviews. Cardiology
https://www.readbyqxmd.com/read/29143536/time-for-a-new-zeitgeist-in-perinatal-mental-health
#3
Fiona Judd, Louise Kathryn Newman, Angela A Komiti
Perinatal depression, and to a lesser extent anxiety, has been the focus of interest for perinatal psychiatrists for several decades. Policy and substantial funding has supported this. We argue that it is now time to change this focus and to invest greater funding to support clinical and research effort in 'high-risk' caregivers and their infants. We define high-risk caregivers as those who are likely to have attachment and relationship difficulties with their infant as a result of their own developmental experiences, personality difficulties and/or trauma-related mental disorders, often complicated by substance abuse, depression and anxiety...
November 1, 2017: Australian and New Zealand Journal of Psychiatry
https://www.readbyqxmd.com/read/29139159/syntaxin1b-contributes-to-regulation-of-the-dopaminergic-system-through-gaba-transmission-in-the-cns
#4
Tomonori Fujiwara, Takefumi Kofuji, Tatsuya Mishima, Kimio Akagawa
In neuronal plasma membrane, two syntaxin isoforms, HPC-1/syntaxin1A (STX1A) and syntaxin1B (STX1B), are predominantly expressed as soluble N-ethylmaleimide-sensitive fusion attachment protein receptors, also known as t-SNAREs. We previously reported that glutamatergic and GABAergic synaptic transmission is impaired in Stx1b null mutant (Stx1b(-/-) ) mice, but is almost normal in Stx1a null mutant (Stx1a(-/-) ) mice. These observations suggested that STX1A and STX1B have distinct functions in fast synaptic transmission in the central nervous system (CNS)...
November 15, 2017: European Journal of Neuroscience
https://www.readbyqxmd.com/read/29133281/should-medical-assistance-in-dying-be-extended-to-incompetent-patients-with-dementia-research-protocol-of-a-survey-among-four-groups-of-stakeholders-from-quebec-canada
#5
Gina Bravo, Claudie Rodrigue, Vincent Thériault, Marcel Arcand, Jocelyn Downie, Marie-France Dubois, Sharon Kaasalainen, Cees M Hertogh, Sophie Pautex, Lieve Van den Block
BACKGROUND: Alzheimer's disease and related disorders affect a growing number of people worldwide. Quality of life is generally good in the early stages of these diseases. However, many individuals fear living through the advanced stages. Such fears are triggering requests for medical assistance in dying (MAiD) by patients with dementia. Legislation was recently passed in Canada and the province of Quebec allowing MAiD at the explicit request of a patient who meets a set of eligibility criteria, including competence...
November 13, 2017: JMIR Research Protocols
https://www.readbyqxmd.com/read/29130379/trauma-complexity-and-child-abuse-a-qualitative-study-of-attachment-narratives-in-adult-refugees-with-ptsd
#6
Karin Riber
The present study aimed to identify trauma types over the life course among adult refugees and to explore their accounts of childhood maltreatment. A sample of 43 Arabic-speaking refugees with posttraumatic stress disorder (PTSD) attending a treatment context in Denmark were interviewed. Using a "Trauma Coding Manual" developed for this study, trauma types were identified in interview transcripts. In both men and women with Iraqi and Palestinian-Lebanese backgrounds, high levels of trauma complexity and high rates of childhood maltreatment were found (63%, n = 27)...
January 1, 2017: Transcultural Psychiatry
https://www.readbyqxmd.com/read/29125797/is-reduction-of-symptoms-in-eating-disorder-patients-after-1%C3%A2-year-of-treatment-related-to-attachment-security-and-mentalization
#7
Greet S Kuipers, Zara van Loenhout, L Andries van der Ark, Marrie H J Bekker
In a sample of 38 eating disorder (ED) patients who received psychotherapeutic treatment, changes in attachment security, and mentalization in relation to symptoms reduction were investigated. Attachment security improved in 1 year but was unrelated to improvement of ED or comorbid symptoms. Mentalization did not change significantly in 1 year. Pretreatment mentalization was negatively related to the severity of ED symptoms, trait anxiety, psycho-neuroticism, and self-injurious behavior after 1 year of treatment...
November 10, 2017: Eating Disorders
https://www.readbyqxmd.com/read/29123635/er-yag-laser-and-cyclosporin-a-effect-on-cell-cycle-regulation-of-human-gingival-fibroblast-cells
#8
Hojjat-Allah Abbaszadeh, Ali Asghar Peyvandi, Yousef Sadeghi, Akram Safaei, Mona Zamanian-Azodi, Maryam Sadat Khoramgah, Mostafa Rezaei-Tavirani
Introduction: Periodontitis is a set of inflammatory disorders characterized by periodontal attachment loss and alveolar bone resorption. Because of deficiency in periodontitis mechanical therapy, this study was aimed to explore the molecular influence of the erbiumdoped: yttrium aluminum garnet (Er:YAG) laser and cyclosporin A (CsA) on human gingival fibroblasts (HGFs) for improvement in periodontal diseases therapy. Methods: We focused on articles that studied the proteome profiles of HGFs after treatment with laser irradiation and application of CsA...
2017: Journal of Lasers in Medical Sciences
https://www.readbyqxmd.com/read/29123396/use-of-magnetic-nanoparticles-as-a-drug-delivery-system-to-improve-chlorhexidine-antimicrobial-activity
#9
Grażyna Tokajuk, Katarzyna Niemirowicz, Piotr Deptuła, Ewelina Piktel, Mateusz Cieśluk, Agnieszka Z Wilczewska, Jan R Dąbrowski, Robert Bucki
Nanotechnology offers new tools for developing therapies to prevent and treat oral infections, particularly biofilm-dependent disorders, such as dental plaques and endodontic and periodontal diseases. Chlorhexidine (CHX) is a well-characterized antiseptic agent used in dentistry with broad spectrum activity. However, its application is limited due to inactivation in body fluid and cytotoxicity toward human cells, particularly at high concentrations. To overcome these limitations, we synthesized nanosystems composed of aminosilane-coated magnetic nanoparticles functionalized with chlorhexidine (MNP@CHX)...
2017: International Journal of Nanomedicine
https://www.readbyqxmd.com/read/29122663/ftir-study-of-secondary-structure-changes-in-epidermal-growth-factor-by-gold-nanoparticle-conjugation
#10
T T Bhattacharjee, M L Castilho, I R de Oliveira, V P S Jesus, K C Hewitt, L Raniero
Conformation of protein is vital to its function, but may get affected when processing to manufacture products. It is therefore important to understand structural changes during each step of production. In this study, we investigate secondary structure changes in the targeting protein Epidermal Growth Factor (EGF) during synthesis of theranostic bifunctional nanoparticle, devised for Photodynamic therapy of breast cancer. We acquired FTIR spectra of EGF; unconjugated, post treatment with α-lipoic acid, attached to gold nanoparticle, and bound to the bifunctional nanoprobe...
November 6, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/29117427/impact-of-a-nursing-in-psychiatry-course-on-students-attitudes-toward-mental-health-disorders
#11
Goran Arbanas, Dina Bosnjak, Tamara Sabo
Negative attitudes toward patients with mental illnesses are not uncommon among health professionals, and lead to poorer quality and outcomes of care. Because attitudes are formed early in life, the current study aimed to investigate if teaching psychiatry in secondary school nursing students (i.e., adolescents) changes attitudes toward three prevalent psychiatric disorders: schizophrenia, posttraumatic stress disorder (PTSD), and depression. A pilot quasi-experimental study was conducted with 51 fourth-year students in secondary nursing school who completed a questionnaire regarding attitudes toward these disorders on the first and last day of their Nursing in Psychiatry course...
November 8, 2017: Journal of Psychosocial Nursing and Mental Health Services
https://www.readbyqxmd.com/read/29107201/alexithymia-and-problematic-alcohol-use-a-critical-update
#12
REVIEW
K E Cruise, R Becerra
There has been a substantial growth in empirical research aimed at examining the co-occurrence of alexithymia and problematic alcohol use and alcohol use disorder (AUD) since Thorberg, Young, Sullivan, and Lyvers (2009) original review article. The objective of the present paper is therefore to provide a critical update review of research on alexithymia and problematic alcohol use published since 2009. A systematic search was conducted through PsychINFO, Medline, and ProQuest databases to obtain relevant literature published between 2009 and 2016...
October 10, 2017: Addictive Behaviors
https://www.readbyqxmd.com/read/29105008/impact-of-postpartum-mental-illness-upon-infant-development
#13
REVIEW
Casey Hoffman, Dena M Dunn, Wanjiku F M Njoroge
PURPOSE OF REVIEW: This review evaluates the state of the research regarding the effects of postpartum mental illness on the developing infant. It defines the scope of these disorders in the literature, and includes the impact of disorders referred to as perinatal mood and anxiety disorders (PMADs) on infants. RECENT FINDINGS: New research reveals that PMADs apply to not only mothers, but that fathers can also experience perinatal depression and anxiety. When untreated in a primary caregiver, PMADs adversely affect parental cognitions and beliefs, attachment to the infant, and the growing caregiver-infant relationship...
November 6, 2017: Current Psychiatry Reports
https://www.readbyqxmd.com/read/29103808/disc1-regulates-neurogenesis-via-modulating-kinetochore-attachment-of-ndel1-nde1-during-mitosis
#14
Fei Ye, Eunchai Kang, Chuan Yu, Xuyu Qian, Fadi Jacob, Cong Yu, Mao Mao, Randy Y C Poon, Jieun Kim, Hongjun Song, Guo-Li Ming, Mingjie Zhang
Mutations of DISC1 (disrupted-in-schizophrenia 1) have been associated with major psychiatric disorders. Despite the hundreds of DISC1-binding proteins reported, almost nothing is known about how DISC1 interacts with other proteins structurally to impact human brain development. Here we solved the high-resolution structure of DISC1 C-terminal tail in complex with its binding domain of Ndel1. Mechanistically, DISC1 regulates Ndel1's kinetochore attachment, but not its centrosome localization, during mitosis...
November 1, 2017: Neuron
https://www.readbyqxmd.com/read/29102897/the-hypothalamic-pituitary-thyroid-axis-and-personality-in-a-sample-of-healthy-subjects
#15
Aleksei Piskunov, Adela Fusté, Nadezhda Teryaeva, Aleksei Moshkin, José Ruiz
Thyroid hormones influence various brain pathologies, including psychiatric disorders. However, the relationship between these hormones and the psychological state in the normal, non-clinical population is poorly understood. We aimed to test whether serum levels of thyroid hormones are associated with personality in the healthy population. Thyrotropin (TSH), free T3 (FT4), total and free T4 (TT4 and FT4) concentrations were measured in the blood of 104 healthy participants (44% men) aged 18-59 (M=35±9). Personality traits were assessed using the revised short versions of the Temperament and Character Inventory (TCI-140) and the NEO Five-Factor Inventory (NEO-FFI)...
October 31, 2017: Psychoneuroendocrinology
https://www.readbyqxmd.com/read/29102368/-body-dysmorphic-disorder-future-prospects-of-medical-care
#16
E Siegfried, A Ayrolles, H Rahioui
Body dysmorphic disorder (BDD) is characterized by excessive preoccupation with a slight or imagined defect in one's physical appearance, believing they look ugly, abnormal or deformed. While the most common preoccupations focus on the skin, hair and nose, any part of the body may be involved. Preoccupations are intrusive, time-consuming and hard to control. Repetitive behaviors are performed in response to the preoccupations. BDD is associated with marked impairment in socio-professional functioning, poor quality of life and high suicide rates...
November 1, 2017: L'Encéphale
https://www.readbyqxmd.com/read/29097692/quantitative-structural-mechanobiology-of-platelet-driven-blood-clot-contraction
#17
Oleg V Kim, Rustem I Litvinov, Mark S Alber, John W Weisel
Blood clot contraction plays an important role in prevention of bleeding and in thrombotic disorders. Here, we unveil and quantify the structural mechanisms of clot contraction at the level of single platelets. A key elementary step of contraction is sequential extension-retraction of platelet filopodia attached to fibrin fibers. In contrast to other cell-matrix systems in which cells migrate along fibers, the "hand-over-hand" longitudinal pulling causes shortening and bending of platelet-attached fibers, resulting in formation of fiber kinks...
November 2, 2017: Nature Communications
https://www.readbyqxmd.com/read/29089389/the-intrinsically-disordered-c-terminal-linker-of-ftsz-regulates-protofilament-dynamics-and-superstructure-in-vitro
#18
Kousik Sundararajan, Erin D Goley
The bacterial tubulin FtsZ2 polymerizes to form a discontinuous ring that drives bacterial cell division by directing local cell wall synthesis. FtsZ comprises a polymerizing GTPase domain, an intrinsically disordered C-terminal linker (CTL) and a C-terminal conserved peptide (CTC). FtsZ protofilaments align circumferentially in the cell, with the CTC mediating attachment to membrane-associated division proteins. The assembly of FtsZ protofilaments into dynamic clusters is critical for cell division, but the interactions between protofilaments and regulatory mechanisms that mediate cluster assembly and dynamics are unknown...
October 31, 2017: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/29079576/ablation-of-the-riboflavin-binding-protein-retbindin-reduces-flavin-levels-and-leads-to-progressive-and-dose-dependent-degeneration-of-rods-and-cones
#19
Ryan A Kelley, Muayyad R Al-Ubaidi, Tirthankar Sinha, Ayse M Genc, Mustafa S Makia, Larissa Ikelle, Muna I Naash
The interface between the neural retina and the retinal pigment epithelium (RPE) is critical for several processes, including visual pigment regeneration and retinal attachment to the RPE. One of its most important functions is the exchange of metabolites between the photoreceptors and RPE because photoreceptor cells have very high energy demands, largely satisfied by oxidative metabolism. The riboflavin (RF) cofactors, flavin adenine dinucleotide (FAD) and flavin mononucleotide (FMN) are two key cofactors involved in oxidative metabolism...
October 27, 2017: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/29075175/three-dimensional-trunk-and-lower-limbs-characteristics-during-gait-in-patients-with-huntington-s-disease
#20
Elzbieta Mirek, Magdalena Filip, Wiesław Chwała, Krzysztof Banaszkiewicz, Monika Rudzinska-Bar, Jadwiga Szymura, Szymon Pasiut, Andrzej Szczudlik
Objective: A number of studies on gait disturbances have been conducted, however, no clear pattern of gait disorders was described. The aim of the study was to characterize the gait pattern in HD patients by conducting analysis of mean angular movement changes the lower limb joints and trunk (kinematics parameters). Methods: The study group consisted of 30 patients with HD (17 women and 13 men). The reference data include the results of 30 healthy subjects (17 women and 13 men). Registration of gait with the Vicon 250 system was performed using passive markers attached to specific anthropometric points directly on the skin, based on the Golem biomechanical model (Oxford Metrics Ltd...
2017: Frontiers in Neuroscience
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