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https://www.readbyqxmd.com/read/28212274/role-of-splice-variants-of-gtf2i-a-transcription-factor-localizing-at-postsynaptic-sites-and-its-relation-to-neuropsychiatric-diseases
#1
REVIEW
Yoshinori Shirai, Weidong Li, Tatsuo Suzuki
We previously reported that various mRNAs were associated with postsynaptic density (PSD) purified from rat forebrain. Among the thousands of PSD-associated mRNAs, we highlight the biology of the general transcription factor II-I (Gtf2i) mRNA, focusing on the significance of its versatile splicing for targeting its own mRNA into dendrites, regulation of translation, and the effects of Gtf2i expression level as well as its relationship with neuropsychiatric disorders.
February 15, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28211452/early-onset-and-delayed-onset-poststroke-dementia-revisiting-the-mechanisms
#2
REVIEW
Vincent C T Mok, Bonnie Y K Lam, Adrian Wong, Ho Ko, Hugh S Markus, Lawrence K S Wong
Incident stroke has long been recognized to cause dementia shortly after the event. Patients who survive stroke without early-onset poststroke dementia (PSD) are at a high risk of developing dementia months to years after the initial stroke incident, which has generated enthusiasm for exploring treatments to prevent delayed-onset PSD in survivors of stroke. However, results from clinical trials completed in the past 10-15 years have been disappointing. In light of these results, the present Review revisits the mechanisms of both early-onset and delayed-onset PSD and proposes preventive strategies and directions for future clinical trials...
February 17, 2017: Nature Reviews. Neurology
https://www.readbyqxmd.com/read/28210709/clinical-outcomes-of-eus-guided-drainage-of-debris-containing-pancreatic-pseudocysts-a-large-multicenter-study
#3
Dennis Yang, Sunil Amin, Susana Gonzalez, Daniel Mullady, Steven A Edmundowicz, John M DeWitt, Mouen A Khashab, Andrew Y Wang, Satish Nagula, Jonathan M Buscaglia, Juan Carlos Bucobo, Mihir S Wagh, Peter V Draganov, Tyler Stevens, John J Vargo, Harshit S Khara, David L Diehl, Rajesh N Keswani, Srinadh Komanduri, Patrick S Yachimski, Anoop Prabhu, Richard S Kwon, Rabindra R Watson, Adam J Goodman, Petros Benias, David L Carr-Locke, Christopher J DiMaio
Background and study aims Data on clinical outcomes of endoscopic drainage of debris-free pseudocysts (PDF) versus pseudocysts containing solid debris (PSD) are very limited. The aims of this study were to compare treatment outcomes between patients with PDF vs. PSD undergoing endoscopic ultrasound (EUS)-guided drainage via transmural stents. Patients and methods Retrospective review of 142 consecutive patients with pseudocysts who underwent EUS-guided transmural drainage (TM) from 2008 to 2014 at 15 academic centers in the United States...
February 2017: Endoscopy International Open
https://www.readbyqxmd.com/read/28210212/differential-behavioral-and-neurobiological-effects-of-chronic-corticosterone-treatment-in-adolescent-and-adult-rats
#4
Jitao Li, Xiaomeng Xie, Youhong Li, Xiao Liu, Xuemei Liao, Yun-Ai Su, Tianmei Si
Adolescence is a critical period with ongoing maturational processes in stress-sensitive systems. While adolescent individuals show heightened stress-induced hormonal responses compared to adults, it is unclear whether and how the behavioral and neurobiological consequences of chronic stress would differ between the two age groups. Here we address this issue by examining the effects of chronic exposure to the stress hormone, corticosterone (CORT), in both adolescent and adult animals. Male Sprague-Dawley (SD) rats were injected intraperitoneally with CORT (40 mg/kg) or vehicle for 21 days during adolescence (post-natal day (PND) 29-49) or adulthood (PND 71-91) and then subjected to behavioral testing or sacrifice for western blot analyses...
2017: Frontiers in Molecular Neuroscience
https://www.readbyqxmd.com/read/28207782/incorporating-interspecific-competition-into-species-distribution-mapping-by-upward-scaling-of-small-scale-model-projections-to-the-landscape
#5
Mark Baah-Acheamfour, Charles P-A Bourque, Fan-Rui Meng, D Edwin Swift
There are a number of overarching questions and debate in the scientific community concerning the importance of biotic interactions in species distribution models at large spatial scales. In this paper, we present a framework for revising the potential distribution of tree species native to the Western Ecoregion of Nova Scotia, Canada, by integrating the long-term effects of interspecific competition into an existing abiotic-factor-based definition of potential species distribution (PSD). The PSD model is developed by combining spatially explicit data of individualistic species' response to normalized incident photosynthetically active radiation, soil water content, and growing degree days...
2017: PloS One
https://www.readbyqxmd.com/read/28207523/pharmacological-and-psychotherapeutic-interventions-for-management-of-poststroke-depression-a-bayesian-network-meta-analysis-of-randomized-controlled-trials
#6
Xuejun Sun, Linghui Deng, Shi Qiu, Xiang Tu, Deren Wang, Ming Liu
INTRODUCTION: Poststroke depression (PSD) constitutes an important complication of stroke, leading to great disability as well as increased mortality. Since which treatment for PSD should be preferred are still matters of controversy, we are aiming to compare and rank these pharmacological and nonpharmacological interventions. METHODS AND ANALYSIS: We will employ a network meta-analysis to incorporate both direct and indirect evidence from relevant trials. We will search PubMed, the Cochrane Library Central Register of Controlled Trials, Embase, and the reference lists of relevant articles for randomized controlled trials (RCT) of different PSD treatment strategies...
February 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28198672/integrated-metagenomic-data-analysis-demonstrates-that-a-loss-of-diversity-in-oral-microbiota-is-associated-with-periodontitis
#7
Dongmei Ai, Ruocheng Huang, Jin Wen, Chao Li, Jiangping Zhu, Li Charlie Xia
BACKGROUND: Periodontitis is an inflammatory disease affecting the tissues supporting teeth (periodontium). Integrative analysis of metagenomic samples from multiple periodontitis studies is a powerful way to examine microbiota diversity and interactions within host oral cavity. METHODS: A total of 43 subjects were recruited to participate in two previous studies profiling the microbial community of human subgingival plaque samples using shotgun metagenomic sequencing...
January 25, 2017: BMC Genomics
https://www.readbyqxmd.com/read/28190466/the-total-triterpenoid-saponins-of-xanthoceras-sorbifolia-improve-learning-and-memory-impairments-through-against-oxidative-stress-and-synaptic-damage
#8
Xue-Fei Ji, Tian-Yan Chi, Peng Liu, Lu-Yi Li, Ji-Kai Xu, Qian Xu, Li-Bo Zou, Da-Li Meng
BACKGROUND: X. sorbifolia is a widely cultivated ecologicalcrop in the north of China which is used to produce biodiesel fuel. It also possesses special medicinal value and has attracted keen interests of researchers to explore its bioactivity. PURPOSE: To extract the total triterpenoid saponins from the husk of X. sorbifolia (TSX) and investigate its effects on Alzheimer's disease (AD). STUDY DESIGN: TSX was prepared via modern extraction techniques...
February 15, 2017: Phytomedicine: International Journal of Phytotherapy and Phytopharmacology
https://www.readbyqxmd.com/read/28186199/ubiquitination-mediates-kv1-3-endocytosis-as-a-mechanism-for-protein-kinase-c-dependent-modulation
#9
Ramón Martínez-Mármol, Katarzyna Styrczewska, Mireia Pérez-Verdaguer, Albert Vallejo-Gracia, Núria Comes, Alexander Sorkin, Antonio Felipe
The voltage-dependent potassium channel Kv1.3 plays essential physiological functions in the immune system. Kv1.3, regulating the membrane potential, facilitates downstream Ca(2+) -dependent pathways and becomes concentrated in specific membrane microdomains that serve as signaling platforms. Increased and/or delocalized expression of the channel is observed at the onset of several autoimmune diseases. In this work, we show that adenosine (ADO), which is a potent endogenous modulator, stimulates PKC, thereby causing immunosuppression...
February 10, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28182837/fibromyalgia-predicts-two-year-changes-in-functional-status-in-rheumatoid-arthritis-patients
#10
Hyein Kim, Jing Cui, Michelle Frits, Christine Iannaccone, Jonathan Coblyn, Nancy A Shadick, Michael E Weinblatt, Yvonne C Lee
BACKGROUND/PURPOSE: Previous cross sectional studies have shown that rheumatoid arthritis (RA) patients with fibromyalgia (FM) have higher disease activity, greater medical costs and worse quality of life compared to RA patients without FM. We determined the impact of FM on 2-year changes in functional status of RA patients in a prospective study. METHODS: Subjects included participants in the Brigham Rheumatoid Arthritis Sequential Study enrolled in a substudy of the effects of pain in RA...
February 9, 2017: Arthritis Care & Research
https://www.readbyqxmd.com/read/28164793/small-rnas-regulate-the-biocontrol-property-of-fluorescent-pseudomonas-strain-psd
#11
Anamika Upadhyay, Mandira Kochar, Ashutosh Upadhyay, Soumya Tripathy, Manchikatla Venkat Rajam, Sheela Srivastava
The production of biocontrol factors by Pseudomonads is reported to be controlled at the post-transcriptional level by the GacS/GacA signal transduction pathway. This involves RNA-binding translational repressor proteins, RsmA and RsmE, and the small regulatory RNAs (sRNAs) RsmX, RsmY, and RsmZ. While the former represses genes involved in secondary metabolite production, the latter relieves this repression at the end of exponential growth. We have studied the fluorescent Pseudomonas strain Psd, possessing good biocontrol potential, and confirmed the presence of rsmY and rsmZ by PCR amplification...
March 2017: Microbiological Research
https://www.readbyqxmd.com/read/28161831/peripapillary-retinal-vessel-density-in-eyes-with-acute-primary-angle-closure-an-optical-coherence-tomography-angiography-study
#12
Xiaolei Wang, Chunhui Jiang, Xiangmei Kong, Xiaobo Yu, Xinghuai Sun
PURPOSE: The purpose was to investigate peripapillary retinal vessel density in resolved acute primary angle closure (APAC) eyes. METHODS: This was a prospective, cross-sectional observational study. Thirty-four eyes of 34 patients with unilateral APAC were included, together with the fellow eyes with primary angle closure suspect (PACS) as controls. Peripapillary retinal vessel density was measured using optical coherence tomography (OCT) angiography. Peripapillary retinal vessel density was compared in both eyes and the potential relationship with visual field (VF) test results was evaluated...
February 4, 2017: Graefe's Archive for Clinical and Experimental Ophthalmology
https://www.readbyqxmd.com/read/28157099/sex-impact-on-tau-aggregation-and-postsynaptic-protein-levels-in-the-p301l-mouse-model-of-tauopathy
#13
Lucia Buccarello, Giuliano Grignaschi, Anna Maria Castaldo, Alessia Di Giancamillo, Cinzia Domeneghini, Roberto Cosimo Melcangi, Tiziana Borsello
P301L transgenic (tg) mice well mimic features of human tauopathies and provide a good model for investigating the role of tau in neurodegenerative events. We here analyzed the possible interaction among phosphorylation of tau (p-tau), spine injury, neuronal death, and sex in the P301L mouse model of tauopathy. When compared to control mice (ctr), P301L transgenic mice (tg) presented with lower body weight, reduced survival rate, hyperphosphorylated tau, spine injury, and neuronal loss in both cerebral cortex and hippocampus at 15 months of age...
February 1, 2017: Journal of Alzheimer's Disease: JAD
https://www.readbyqxmd.com/read/28156433/psychosocial-distress-screening-in-the-health-care-safety-net
#14
Theora Cimino, Anne Kinderman, Leslie Safier, Heather A Harris
: 91 Background: Recognizing that psychosocial distress (PSD) is underestimated in patients with cancer, the Commission on Cancer mandated screening using a validated tool. Studies of PSD screening exist, but none to date in a diverse, multicultural safety net setting where patients face challenges such as homelessness, mental illness, and substance abuse, which may augment PSD. METHODS: We performed a retrospective cohort study of patients with cancer offered PSD screening during 2015...
October 9, 2016: Journal of Clinical Oncology: Official Journal of the American Society of Clinical Oncology
https://www.readbyqxmd.com/read/28151940/paid-sick-days-and-stay-at-home-behavior-for-influenza
#15
Kaitlin Piper, Ada Youk, A Everette James, Supriya Kumar
Access to paid sick days (PSD) differs by workplace size, race/ethnicity, gender, and income in the United States. It is not known to what extent decisions to stay home from work when sick with infectious illnesses such as influenza depend on PSD access, and whether access impacts certain demographic groups more than others. We examined demographic and workplace characteristics (including access to PSD) associated with employees' decisions to stay home from work for their own or a child's illness. Linking the 2009 Medical Expenditure Panel Survey (MEPS) consolidated data file to the medical conditions file, we used multivariate Poisson regression models with robust variance estimates to identify factors associated with missed work for an employee's own or a child's illness/injury, influenza-like-illness (ILI), and influenza...
2017: PloS One
https://www.readbyqxmd.com/read/28144811/influence-of-acquisition-orbit-on-phase-analysis-of-gated-single-photon-emission-computed-tomography-myocardial-perfusion-imaging-for-assessment-of-left-ventricular-mechanical-dyssynchrony
#16
Tomofumi Misaka, Makoto Hosono, Takashi Kudo, Takamichi Ito, Tsutomu Syomura, Masanobu Uemura, Kaoru Okajima
OBJECTIVE: The association between left ventricular (LV) dyssynchrony parameters, given by phase analysis of gated single photon emission computed tomography (SPECT) myocardial perfusion imaging (MPI), and acquisition orbits is unclear. The aim of this study was to assess the dependence of LV dyssynchrony parameters on acquisition orbits. METHODS: Ninety-nine patients who underwent (201)Tl-gated SPECT MPI were categorized into minor hypoperfusion or major hypoperfusion groups...
January 31, 2017: Annals of Nuclear Medicine
https://www.readbyqxmd.com/read/28137412/application-of-noninvasive-brain-stimulation-for-post-stroke-dysphagia-rehabilitation
#17
REVIEW
Zhuo Wang, Wei-Qun Song, Liang Wang
Noninvasive brain stimulation (NIBS), commonly consisting of transcranial magnetic stimulation (TMS), transcranial direct-current stimulation (tDCS), as well as paired associative stimulation (PAS), has attracted increased interest and been applied experimentally in the treatment of post-stroke dysphagia (PSD). This review presented a synopsis of the current research for the application of NIBS on PSD. The intention here was to understand the current research progress and limitations in this field and to stimulate potential research questions not yet investigated for the application of NIBS on patients with PSD...
February 2017: Kaohsiung Journal of Medical Sciences
https://www.readbyqxmd.com/read/28134614/ablation-of-snx6-leads-to-defects-in-synaptic-function-of-ca1-pyramidal-neurons-and-spatial-memory
#18
Yang Niu, Zhonghua Dai, Wenxue Liu, Cheng Zhang, Yanrui Yang, Zhenzhen Guo, Xiaoyu Li, Chenchang Xu, Xiahe Huang, Yingchun Wang, Yun S Shi, Jia-Jia Liu
SNX6 is a ubiquitously expressed PX-BAR protein that plays important roles in retromer-mediated retrograde vesicular transport from endosomes. Here we report that CNS-specific Snx6 knockout mice exhibit deficits in spatial learning and memory, accompanied with loss of spines from distal dendrites of hippocampal CA1 pyramidal cells. SNX6 interacts with Homer1b/c, a postsynaptic scaffold protein crucial for synaptic distribution of other postsynaptic density (PSD) proteins and structural integrity of dendritic spines...
January 30, 2017: ELife
https://www.readbyqxmd.com/read/28132827/optogenetic-control-of-synaptic-composition-and-function
#19
Brooke L Sinnen, Aaron B Bowen, Jeffrey S Forte, Brian G Hiester, Kevin C Crosby, Emily S Gibson, Mark L Dell'Acqua, Matthew J Kennedy
The molecular composition of the postsynaptic membrane is sculpted by synaptic activity. During synaptic plasticity at excitatory synapses, numerous structural, signaling, and receptor molecules concentrate at the postsynaptic density (PSD) to regulate synaptic strength. We developed an approach that uses light to tune the abundance of specific molecules in the PSD. We used this approach to investigate the relationship between the number of AMPA-type glutamate receptors in the PSD and synaptic strength. Surprisingly, adding more AMPA receptors to excitatory contacts had little effect on synaptic strength...
February 8, 2017: Neuron
https://www.readbyqxmd.com/read/28131850/design-of-spray-dried-ternary-solid-dispersions-comprising-itraconazole-soluplus-and-hpmcp-effect-of-constituent-compositions
#20
Mark T Davis, Catherine B Potter, Maryam Mohammadpour, Ahmad B Albadarin, Gavin M Walker
A range of 17 ternary formulations of itraconazole (ITZ), HPMCP and Soluplus have been manufactured using spray drying. These amorphous solid dispersions (ASDs) were very stable against crystallisation and ITZ was found to be amorphous in all formulations after one year at 40°C/75% RH. A number of solid state analytical techniques including PXRD, DSC, small angle X-ray scattering, FTIR and solid state NMR were used to characterise the physicochemical properties of the ASDs following processing and storage and to assess any interactions between components...
January 25, 2017: International Journal of Pharmaceutics
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