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Conversion Disorder

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https://www.readbyqxmd.com/read/28436950/mre11-stability-is-regulated-by-ck2-dependent-interaction-with-r2tp-complex
#1
P von Morgen, K Burdova, T G Flower, N J O'Reilly, S J Boulton, S J Smerdon, L Macurek, Z Hořejší
The MRN (MRE11-RAD50-NBS1) complex is essential for repair of DNA double-strand breaks and stalled replication forks. Mutations of the MRN complex subunit MRE11 cause the hereditary cancer-susceptibility disease ataxia-telangiectasia-like disorder (ATLD). Here we show that MRE11 directly interacts with PIH1D1, a subunit of heat-shock protein 90 cochaperone R2TP complex, which is required for the assembly of large protein complexes, such as RNA polymerase II, small nucleolar ribonucleoproteins and mammalian target of rapamycin complex 1...
April 24, 2017: Oncogene
https://www.readbyqxmd.com/read/28435461/recipient-glycemic-micro-environments-govern-therapeutic-effects-of-mesenchymal-stem-cell-infusion-on-osteopenia
#2
Bing-Dong Sui, Cheng-Hu Hu, Chen-Xi Zheng, Yi Shuai, Xiao-Ning He, Ping-Ping Gao, Pan Zhao, Meng Li, Xin-Yi Zhang, Tao He, Kun Xuan, Yan Jin
Therapeutic effects of mesenchymal stem cell (MSC) infusion have been revealed in various human disorders, but impacts of diseased micro-environments are only beginning to be noticed. Donor diabetic hyperglycemia is reported to impair therapeutic efficacy of stem cells. However, whether recipient diabetic condition also affects MSC-mediated therapy is unknown. We and others have previously shown that MSC infusion could cure osteopenia, particularly in ovariectomized (OVX) mice. Here, we discovered impaired MSC therapeutic effects on osteopenia in recipient type 1 diabetes (T1D)...
2017: Theranostics
https://www.readbyqxmd.com/read/28434395/would-adults-with-autism-be-less-likely-to-bury-the-survivors-an-eye-movement-study-of-anomalous-text-reading
#3
Sheena K Au-Yeung, Johanna K Kaakinen, Simon P Liversedge, Valerie Benson
In a single eye movement experiment we investigated the effects of context on the time course of local and global anomaly processing during reading in adults with Autism Spectrum Disorder (ASD). In one condition short paragraph texts contained anomalous target words. Detection of the anomaly was only possible through evaluation of word meaning in relation to the global context of the whole paragraph (Passage Level Anomalies). In another condition the anomaly could be detected via computation of a local thematic violation within a single sentence embedded in the paragraph (Sentence Level Anomalies)...
April 24, 2017: Quarterly Journal of Experimental Psychology: QJEP
https://www.readbyqxmd.com/read/28434123/conversion-disorder-functional-neurological-symptom-disorder-and-chronic-pain-comorbidity-assessment-and-treatment
#4
REVIEW
Patricia Tsui, Andrew Deptula, Derek Y Yuan
PURPOSE OF REVIEW: This paper examines the overlap of conversion disorder with chronic pain conditions, describes ways to assess for conversion disorder, and provides an overview of evidence-based treatments for conversion disorder and chronic pain, with a focus on conversion symptoms. RECENT FINDINGS: Conversion disorder is a significant problem that warrants further study, given that there are not many well-established guidelines. Accurate and timely assessment should help move treatment in a more fruitful direction and avoid unnecessary medical interventions...
June 2017: Current Pain and Headache Reports
https://www.readbyqxmd.com/read/28433096/wilson-disease-neurologic-features
#5
Anna Członkowska, Tomasz Litwin, Grzegorz Chabik
Wilson disease (WD) is a neurodegenerative disorder, which presents as a spectrum of neurologic manifestations that includes tremor, bradykinesia, rigidity, dystonia, chorea, dysarthria, and dysphagia, together with a combination of neurologic symptoms that can easily lead to misdiagnosis. An early diagnosis of WD, and appropriate anticopper treatment, usually leads to a marked improvement in patient health. Conversely, delayed diagnosis can result in persistent pathology, which, left untreated, can ultimately prove lethal...
2017: Handbook of Clinical Neurology
https://www.readbyqxmd.com/read/28431011/the-relationship-between-pain-characteristics-peer-difficulties-and-emotional-functioning-among-adolescents-seeking-treatment-for-chronic-pain-a-test-of-mediational-models
#6
Sherilynn F Chan, Mark Connelly, Dustin P Wallace
To evaluate patterns of relationships between pain characteristics, peer difficulties, and emotional functioning in a sample of adolescents seeking treatment for chronic pain. Participants were 172 adolescents (age M  = 14.88 years; 76% female, 88% White) with heterogeneous chronic pain disorders who completed measures of pain characteristics, peer difficulties, and emotional functioning before their new patient appointment in a pain management clinic. Direct and indirect relationships between variables were tested using path analysis...
April 19, 2017: Journal of Pediatric Psychology
https://www.readbyqxmd.com/read/28429825/validation-of-the-mds-research-criteria-for-prodromal-parkinson-s-disease-longitudinal-assessment-in-a-rem-sleep-behavior-disorder-rbd-cohort
#7
Seyed-Mohammad Fereshtehnejad, Jacques Y Montplaisir, Amelie Pelletier, Jean-François Gagnon, Daniela Berg, Ronald B Postuma
BACKGROUND: Recently, the International Parkinson and Movement Disorder Society introduced the prodromal criteria for PD. Objectives Our study aimed to examine diagnostic accuracy of the criteria as well as the independence of prodromal markers to predict conversion to PD or dementia with Lewy bodies. METHODS: This prospective cohort study was performed on 121 individuals with rapid eye movement sleep behavior disorder who were followed annually for 1 to 12 years...
April 21, 2017: Movement Disorders: Official Journal of the Movement Disorder Society
https://www.readbyqxmd.com/read/28429146/clinical-validity-of-biochemical-and-molecular-analysis-in-diagnosing-leigh-syndrome-a-study-of-106-japanese-patients
#8
Erika Ogawa, Masaru Shimura, Takuya Fushimi, Makiko Tajika, Keiko Ichimoto, Ayako Matsunaga, Tomoko Tsuruoka, Mika Ishige, Tatsuo Fuchigami, Taro Yamazaki, Masato Mori, Masakazu Kohda, Yoshihito Kishita, Yasushi Okazaki, Shori Takahashi, Akira Ohtake, Kei Murayama
Leigh syndrome (LS) is a progressive neurodegenerative disorder of infancy and early childhood. It is clinically diagnosed by typical manifestations and characteristic computed tomography (CT) or magnetic resonance imaging (MRI) studies. Unravelling mitochondrial respiratory chain (MRC) dysfunction behind LS is essential for deeper understanding of the disease, which may lead to the development of new therapies and cure. The aim of this study was to evaluate the clinical validity of various diagnostic tools in confirming MRC disorder in LS and Leigh-like syndrome (LL)...
April 20, 2017: Journal of Inherited Metabolic Disease
https://www.readbyqxmd.com/read/28429098/symptomatic-menopausal-transition-and-subsequent-bipolar-disorder-among-midlife-women-with-major-depression-a-nationwide-longitudinal-study
#9
Li-Chi Chen, Albert C Yang, Tung-Ping Su, Ya-Mei Bai, Cheng-Ta Li, Wen-Han Chang, Tzeng-Ji Chen, Shih-Jen Tsai, Mu-Hong Chen
Previous studies suggested that menopausal transition played an important role in the clinical course of major depression and bipolar disorder. However, the role of symptomatic menopausal transition in diagnostic conversion from major depression to bipolar disorder was still unknown. Using the Taiwan National Health Insurance Research Database, 50,273 midlife women aged between 40 and 60 years in 2002∼2008 with major depression were enrolled in our study and divided into two subgroups based on the presence (n = 21,120) or absence (n = 29,153) of symptomatic menopausal transition...
April 20, 2017: Archives of Women's Mental Health
https://www.readbyqxmd.com/read/28428956/physiological-functions-of-the-cellular-prion-protein
#10
REVIEW
Andrew R Castle, Andrew C Gill
The prion protein, PrP(C), is a small, cell-surface glycoprotein notable primarily for its critical role in pathogenesis of the neurodegenerative disorders known as prion diseases. A hallmark of prion diseases is the conversion of PrP(C) into an abnormally folded isoform, which provides a template for further pathogenic conversion of PrP(C), allowing disease to spread from cell to cell and, in some circumstances, to transfer to a new host. In addition to the putative neurotoxicity caused by the misfolded form(s), loss of normal PrP(C) function could be an integral part of the neurodegenerative processes and, consequently, significant research efforts have been directed toward determining the physiological functions of PrP(C)...
2017: Frontiers in Molecular Biosciences
https://www.readbyqxmd.com/read/28427035/associations-between-executive-functions-and-mental-health-outcomes-for-adults-with-autism-spectrum-disorder
#11
David Zimmerman, Tamara Ownsworth, Analise O'Donovan, Jacqueline Roberts, Matthew J Gullo
Associations between executive functions (EF) and mental-health in adults with autism spectrum disorder (ASD) were examined. Forty-two adults with ASD completed measures of EF, mood and self-concept. Better concept formation and social inference skills were significantly associated with fewer anxiety symptoms. Conversely, participants with better non-verbal reasoning, cognitive flexibility and social cognition reported more negative self-concept and lower self-esteem. Overall, individuals with impaired EF are more prone to anxiety, whereas those with stronger EF are more likely to experience negative self-concept...
April 12, 2017: Psychiatry Research
https://www.readbyqxmd.com/read/28426221/charge-transport-in-nanostructured-materials-implementation-and-verification-of-constrained-density-functional-theory
#12
Matthew B Goldey, Nicholas P Brawand, Márton Vörös, Giulia Galli
The in silico design of novel complex materials for energy conversion requires accurate, ab initio simulation of charge transport. In this work, we present an implementation of constrained density functional theory (CDFT) for the calculation of parameters for charge transport in the hopping regime. We verify our implementation against literature results for molecular systems, and we discuss the dependence of results on numerical parameters and the choice of localization potentials. In addition, we compare CDFT results with those of other commonly used methods for simulating charge transport between nanoscale building blocks...
April 20, 2017: Journal of Chemical Theory and Computation
https://www.readbyqxmd.com/read/28425630/earth-abundant-chalcogenide-photovoltaic-devices-with-over-5-efficiency-based-on-a-cu2-basn-s-se-4-absorber
#13
Donghyeop Shin, Tong Zhu, Xuan Huang, Oki Gunawan, Volker Blum, David B Mitzi
In recent years, Cu2 ZnSn(S,Se)4 (CZTSSe) materials have enabled important progress in associated thin-film photovoltaic (PV) technology, while avoiding scarce and/or toxic metals; however, cationic disorder and associated band tailing fundamentally limit device performance. Cu2 BaSnS4 (CBTS) has recently been proposed as a prospective alternative large bandgap (~2 eV), environmentally friendly PV material, with ~2% power conversion efficiency (PCE) already demonstrated in corresponding devices. In this study, a two-step process (i...
April 20, 2017: Advanced Materials
https://www.readbyqxmd.com/read/28424653/disentangling-stigma-from-functional-neurological-disorders-conference-report-and-roadmap-for-the-future
#14
Karen S Rommelfanger, Stewart A Factor, Suzette LaRoche, Phyllis Rosen, Raymond Young, Mark H Rapaport
A multidisciplinary expert review of key issues and future directions from the conference "Controversial labels and clinical uncertainties: psychogenic disorders, conversion disorder, and functional symptoms." On October 9 and 10, 2015, a conference entitled "Controversial labels and clinical uncertainties: psychogenic disorders, conversion disorder, and functional symptoms" was held at the Center for Ethics, Emory University, Atlanta, GA, USA. This conference brought together a select group of 30 distinguished thought leaders and practitioners, including ethicists, researchers, clinicians, humanities scholars, and advocates to discuss the unique challenges and controversies related to the diagnosis, treatment, and stigma for patients with what is currently recognized as functional ("psychogenic") neurological disorders...
2017: Frontiers in Neurology
https://www.readbyqxmd.com/read/28422755/%C3%AE-klotho-deficiency-protects-against-obesity-through-a-crosstalk-between-liver-microbiota-and-brown-adipose-tissue
#15
Emmanuel Somm, Hugues Henry, Stephen J Bruce, Sébastien Aeby, Marta Rosikiewicz, Gerasimos P Sykiotis, Mohammed Asrih, François R Jornayvaz, Pierre Damien Denechaud, Urs Albrecht, Moosa Mohammadi, Andrew Dwyer, James S Acierno, Kristina Schoonjans, Lluis Fajas, Gilbert Greub, Nelly Pitteloud
β-Klotho (encoded by Klb) is the obligate coreceptor mediating FGF21 and FGF15/19 signaling. Klb-/- mice are refractory to beneficial action of pharmacological FGF21 treatment including stimulation of glucose utilization and thermogenesis. Here, we investigated the energy homeostasis in Klb-/- mice on high-fat diet in order to better understand the consequences of abrogating both endogenous FGF15/19 and FGF21 signaling during caloric overload. Surprisingly, Klb-/- mice are resistant to diet-induced obesity (DIO) owing to enhanced energy expenditure and BAT activity...
April 20, 2017: JCI Insight
https://www.readbyqxmd.com/read/28421765/singlet-fission-in-weakly-interacting-acene-molecules
#16
Sharareh Izadnia, David Schönleber, Alexander Eisfeld, Alex Ruf, Aaron C LaForge, Frank Stienkemeier
The energy conversion in solar cells has conventionally been limited by the Shockley-Queisser limit. Singlet fission (SF), a decay mechanism where a single excited singlet state is converted into two triplet states, can drastically improve this efficiency. For the most part, observation of SF has been limited to crystalline structures in solids and films, where strong ordering was present. Here, we report on singlet fission in a disordered system where organic chromophores are distributed on the surface of a rare gas cluster...
April 19, 2017: Journal of Physical Chemistry Letters
https://www.readbyqxmd.com/read/28421060/the-heme-metabolite-carbon-monoxide-facilitates-kshv-infection-by-inhibiting-tlr4-signaling-in-endothelial-cells
#17
Sara Botto, Jean K Gustin, Ashlee V Moses
Kaposi sarcoma herpesvirus (KSHV) is the etiologic agent of Kaposi sarcoma (KS) and certain rare B cell lymphoproliferative disorders. KSHV infection of endothelial cells (EC) in vitro increases expression of the inducible host-encoded enzyme heme oxygenase-1 (HO-1), which is also strongly expressed in KS tumors. HO-1 catalyzes the rate-limiting step in the conversion of heme into iron, biliverdin and the gasotransmitter carbon monoxide (CO), all of which share anti-apoptotic, anti-inflammatory, pro-survival, and tumorigenic activities...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28420122/the-effect-of-salt-intake-and-potassium-supplementation-on-serum-gastrin-levels-in-chinese-adults-a-randomized-trial
#18
Yuan-Yuan Wang, Wen-Wen He, Yan-Chun Liu, Yi-Feng Lin, Lu-Fei Hong
Excess dietary salt is strongly correlated with cardiovascular disease, morbidity, and mortality. Conversely, potassium likely elicits favorable effects against cardiovascular disorders. Gastrin, which is produced by the G-cells of the stomach and duodenum, can increase renal sodium excretion and regulate blood pressure by acting on the cholecystokinin B receptor. The aim of our study was to assess the effects of altered salt and potassium supplementation on serum gastrin levels in humans. A total of 44 subjects (38-65 years old) were selected from a rural community in northern China...
April 14, 2017: Nutrients
https://www.readbyqxmd.com/read/28417481/chemical-reduction-of-intrinsic-defects-in-thicker-heterojunction-planar-perovskite-solar-cells
#19
Zonghao Liu, Junnan Hu, Haoyang Jiao, Liang Li, Guanhaojie Zheng, Yihua Chen, Yuan Huang, Qing Zhang, Chao Shen, Qi Chen, Huanping Zhou
Minimization of defects in absorber materials is essential for hybrid perovskite solar cells, especially when constructing thick polycrystalline layers in a planar configuration. Here, a simple methylamine solution-based additive is reported to improve film quality with nearly an order of magnitude reduction in intrinsic defect concentration. In the resultant film, an increase in carrier lifetime as a result of a decrease in shallow electronic disorder is observed. This superior crystalline film quality is further evidenced via a doubled spin relaxation time as compared with other reports...
April 18, 2017: Advanced Materials
https://www.readbyqxmd.com/read/28417072/atypical-juvenile-presentation-of-gm2-gangliosidosis-ab-in-a-patient-compound-heterozygote-for-c-259g%C3%A2-%C3%A2-t-and-c-164c%C3%A2-%C3%A2-t-mutations-in-the-gm2a-gene
#20
Carla Martins, Catherine Brunel-Guitton, Anne Lortie, France Gauvin, Carlos R Morales, Grant A Mitchell, Alexey V Pshezhetsky
GM2-gangliosidosis, AB variant is an extremely rare autosomal recessive inherited disorder caused by mutations in the GM2A gene that encodes GM2 ganglioside activator protein (GM2AP). GM2AP is necessary for solubilisation of GM2 ganglioside in endolysosomes and its presentation to β-hexosaminidase A. Conversely GM2AP deficiency impairs lysosomal catabolism of GM2 ganglioside, leading to its storage in cells and tissues. We describe a 9-year-old child with an unusual juvenile clinical onset of GM2-gangliosidosis AB...
June 2017: Molecular Genetics and Metabolism Reports
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