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https://www.readbyqxmd.com/read/29150431/the-e3-ubiquitin-ligase-apc-c-c-dh1-degrades-mcph1-after-mcph1-%C3%AE-trcp2-cdc25a-mediated-mitotic-entry-to-ensure-neurogenesis
#1
Xiaoqian Liu, Wen Zong, Tangliang Li, Yujun Wang, Xingzhi Xu, Zhong-Wei Zhou, Zhao-Qi Wang
Mutations of microcephalin (MCPH1) can cause the neurodevelopmental disorder primary microcephaly type 1. We previously showed that MCPH1 deletion in neural stem cells results in early mitotic entry that distracts cell division mode, leading to exhaustion of the progenitor pool. Here, we show that MCPH1 interacts with and promotes the E3 ligase βTrCP2 to degrade Cdc25A independent of DNA damage. Overexpression of βTrCP2 or the knockdown of Cdc25A remedies the high mitotic index and rescues the premature differentiation of Mcph1-deficient neuroprogenitors in vivo MCPH1 itself is degraded by APC/C(C)(dh1), but not APC/C(C)(dc20), in late mitosis and G1 phase...
November 17, 2017: EMBO Journal
https://www.readbyqxmd.com/read/29150353/barrier-dysfunction-in-the-nasal-allergy
#2
REVIEW
Ayumi Fukuoka, Tomohiro Yoshimoto
Epithelial cells form the first physiological barrier against invasion by pathogens and the infiltration of allergens. Tight junctions (TJ), a cell-cell junctional complex located on the apical side of epithelial cells, have a critical role in the maintenance of epithelial barrier function. Impaired TJ structures are observed in patients with asthma, atopic dermatitis and nasal allergy; therefore, the dysfunction of epithelial barriers might be involved in the initiation or progression of allergic diseases...
November 14, 2017: Allergology International: Official Journal of the Japanese Society of Allergology
https://www.readbyqxmd.com/read/29149938/novel-interventions-what-s-new-and-the-future
#3
REVIEW
Jean-Louis Vincent, David Grimaldi
Despite decades of sepsis research, no specific therapies for sepsis have emerged and current management still relies on source control, antibiotics, and organ support. With improved understanding of sepsis pathophysiology and the development of new techniques to enable better characterization of patients with sepsis, clinical trials are beginning to better target new interventions at those patients most likely to respond. This article discusses advances in sepsis therapeutics designed to improve endothelial cell function, purify the blood to help restore immune homeostasis, and provide immunostimulation for patients with immune exhaustion...
January 2018: Critical Care Clinics
https://www.readbyqxmd.com/read/29149505/an-international-continence-society-ics-report-on-the-terminology-for-adult-neurogenic-lower-urinary-tract-dysfunction-anlutd
#4
Jerzy B Gajewski, Brigitte Schurch, Rizwan Hamid, Márcio Averbeck, Ryuji Sakakibara, Enrico F Agrò, Tamara Dickinson, Christopher K Payne, Marcus J Drake, Bernie T Haylen
INTRODUCTION: The terminology for adult neurogenic lower urinary tract dysfunction (ANLUTD) should be defined and organized in a clinically based consensus Report. METHODS: This Report has been created by a Working Group under the auspices and guidelines of the International Continence Society (ICS) Standardization Steering Committee (SSC) assisted at intervals by external referees. All relevant definitions for ANLUTD were updated on the basis of research over the last 14 years...
November 17, 2017: Neurourology and Urodynamics
https://www.readbyqxmd.com/read/29148629/carbohydrate-mouth-rinse-improves-cycling-performance-carried-out-until-the-volitional-exhaustion
#5
Bruno Bavaresco Gambassi, Ylana Gomes de Santana Barros Leal, Edson R Pinheiro Dos Anjos, Bruna A Antonelli, Daniela C Gomes Gonçalves E Silva, Iracema H Pires de Mélo Montenegro, Rita di Cássia de Oliveira Angelo, Isis S Correia Moura, Paulo A Schwingel
BACKGROUND: Carbohydrates (CHO) are among the most investigated nutritional ergogenic aids, and may be consumed in different forms, e.g., mouth rinse with carbohydrate solution (MRCS). In this sense, the aim of this study was to evaluate the impact of MRCS on the performance of physically active individuals undergoing a physical exercise session carried out until the volitional exhaustion. METHODS: This is a counter-balanced randomized study, with a double-blind design...
November 17, 2017: Journal of Sports Medicine and Physical Fitness
https://www.readbyqxmd.com/read/29148626/effects-of-detraining-on-breathing-pattern-and-ventilatory-efficiency-in-young-soccer-players
#6
José R Alvero Cruz, Mauro Ronconi, Jerónimo Garcia Romero, José Naranjo Orellana
BACKGROUND: This study investigated the effects of detraining on breathing pattern. The aim of this study was to evaluate the effect of a sixweek detraining period on breathing patterns and ventilatory efficiency. METHODS: Fourteen young soccer players were evaluated at the end of a competitive season and after a sixweek detraining period. Assessment of respiratory efficiency was based on VE/VCO2 slope changes below 70% of exercise intensity. All participants underwent twice an incremental graded exercise test up to exhaustion...
November 17, 2017: Journal of Sports Medicine and Physical Fitness
https://www.readbyqxmd.com/read/29148009/preoperative-ultrasound-for-runoff-venous-decompression-of-peripheral-nerves-for-arteriovenous-access-related-pain-in-the-upper-limb
#7
Hiroaki Matsuda, Yoshinari Oka, Ryuichi Yoshida, Yuki Katsura, Hidemi Takeuchi, Yasuo Fujimoto, Shigeko Takatsu, Masashi Miyazaki
INTRODUCTION: Arteriovenous access (AVA)-related pain treated successfully with runoff-venous decompression of the causative nerve, following ultrasound (US)-assisted preoperative evaluation, has never been reported. CASE PRESENTATION: A 57-year-old man suffering from constant exhausting pains along the outflow cephalic vein of the radiocephalic arteriovenous fistula at the wrist and the antecubital fossa, was treated surgically after the diagnosis of AVA-related pain derived from cephalic vein compression on two peripheral cutaneous nerves, the superficial radial nerve (SRN) and the lateral antebrachial cutaneous nerve (LACN)...
November 9, 2017: Journal of Vascular Access
https://www.readbyqxmd.com/read/29148001/an-arterioarterial-prosthetic-graft-as-an-alternative-option-for-haemodialysis-access-a-systematic-review
#8
Matthew J Grima, Bianca Vriens, Peter J Holt, Eric Chemla
INTRODUCTION: All arteriovenous fistula/grafts options should be exhausted before haemodialysis is carried out via central venous catheters (CVC). CVCs carry high morbidity and mortality risks and in some patients, the central veins could be exhausted. In these patients, an arterioarterial prosthetic loop (AAPL) or straight graft can be the only option for haemodialysis. A systematic review was thus carried out to look at the use of arterioarterial graft for haemodialysis, with regards to dialysis adequacy, complications, and patency rates...
November 10, 2017: Journal of Vascular Access
https://www.readbyqxmd.com/read/29147618/programmed-cell-death-ligands-expression-in-phaeochromocytomas-and-paragangliomas-relationship-with-the-hypoxic-response-immune-evasion-and-malignant-behavior
#9
David J Pinato, James R Black, Sebastian Trousil, Roberto E Dina, Pritesh Trivedi, Francesco A Mauri, Rohini Sharma
The hypoxic response underlies the pathogenesis and malignant behavior of PCC/PGL. Regulation of PD-1 receptor-ligand signaling, a therapeutically actionable driver of the anti-tumor immune response, is a hypoxic-driven trait across malignancies. We evaluated the prognostic role of PD ligands in association with biomarkers of hypoxia and angiogenesis in patients with PCC/PGL. Tissue microarrays sections including consecutive cases diagnosed between 1983-2011 were stained for PD-L1 and 2, hypoxia inducible factor 1a (Hif-1a), Carbonic Anhydrase IX (CaIX), Vascular Endothelial Growth Factor-A (VEGF-A)...
2017: Oncoimmunology
https://www.readbyqxmd.com/read/29146687/exercise-induces-muscle-fiber-type-switching-via-transient-receptor-potential-melastatin-2-trpm2-dependent-ca-2-signaling
#10
Seo-Ho Lee, Byung-Ju Kim, Dae-Ryoung Park, Uh-Hyun Kim
The aim of the present study was to examine whether transient receptor potential melastatin 2 (TRPM2) plays a role in muscle fiber type transition during exercise. Mice were trained at a speed of 12 m/min at a slope of 0 ° for 60 min 5 consecutive d/wk for 4-wk. Exhaustion tests were performed on the treadmill (the speed was set at 6 m/min at a slope of 0° and increased at a rate of 1 m/min every 6 min). Isolated primary skeletal muscle cells from TRPM2 knockout (KO) mice showed lower amplitudes of electrical stimuli (ES)-induced Ca(2+) signals when compared to wild-type (WT) mice, due to a defect in Ca(2+) influx...
November 16, 2017: Journal of Applied Physiology
https://www.readbyqxmd.com/read/29146224/joint-trajectories-of-cognition-and-frailty-and-associated-burden-of-patient-reported-outcomes
#11
Zuyun Liu, Ling Han, Evelyne A Gahbauer, Heather G Allore, Thomas M Gill
OBJECTIVES: To evaluate joint trajectories of cognition and frailty and their association with the cumulative burden of patient-reported outcomes, including hospitalization, nursing home admission, and disability. DESIGN: Longitudinal study of 754 community-living persons aged 70 or older. PARTICIPANTS: 690 participants who had a baseline and at least one follow-up assessment of cognition and frailty between 1998 and 2009. MEASUREMENTS: Cognition was assessed using the Mini-Mental State Examination (MMSE)...
November 14, 2017: Journal of the American Medical Directors Association
https://www.readbyqxmd.com/read/29146200/on-board-measurements-of-particle-and-gaseous-emissions-from-a-large-cargo-vessel-at-different-operating-conditions
#12
Thuy Chu-Van, Zoran Ristovski, Ali Mohammad Pourkhesalian, Thomas Rainey, Vikram Garaniya, Rouzbeh Abbassi, Sanaz Jahangiri, Hossein Enshaei, U-Shen Kam, Richard Kimball, Liping Yang, Ali Zare, Harry Bartlett, Richard J Brown
This study investigated particle and gaseous emission factors from a large cargo vessel for her whole voyage including at berth, manoeuvring and cruising. Quantification of these factors assists in minimising the uncertainty in the current methods of exhaust gas emission factor estimation. Engine performance and emissions from the main marine engine were measured on-board while the ship was manoeuvring and cruising at sea. Emissions of an auxiliary engine working at 55% of maximum continuous rating (MCR) were measured when the ship was at actual harbour stopovers...
November 13, 2017: Environmental Pollution
https://www.readbyqxmd.com/read/29145766/environmental-samples-make-soiled-bedding-sentinels-dispensable-for-hygienic-monitoring-of-ivc-reared-mouse-colonies
#13
Manuel Miller, Markus Brielmeier
Accurate knowledge of the health status of experimental animals is pivotal to high scientific and ethical standards in biomedical research. Individually ventilated cages (IVCs) are becoming the predominant system for housing laboratory mice, as they prevent cage-to-cage infections. However, this feature constitutes a major drawback for hygienic monitoring of mouse colonies, as traditional screening programs build on reliable transmission of infectious agents from experimental animals to sentinel mice commonly tested as representatives for the mouse colonies...
January 1, 2017: Laboratory Animals
https://www.readbyqxmd.com/read/29144151/workflow-interruptions-and-employee-work-outcomes-the-moderating-role-of-polychronicity
#14
Daniela Pachler, Angela Kuonath, Julia Specht, Silja Kennecke, Maria Agthe, Dieter Frey
Workflow interruptions are one of the most commonly experienced stressors at work. This research expands existing literature on workflow interruptions in a diary field study. We apply a within-person approach and investigate detrimental effects of daily workflow interruptions on both daily satisfaction with performance and daily emotional exhaustion. Furthermore, we introduce polychronicity (the trait-like preference of a person to deal with several activities at the same time) as a buffering factor in this relationship...
November 16, 2017: Journal of Occupational Health Psychology
https://www.readbyqxmd.com/read/29143226/aligned-ovine-diaphragmatic-myoblasts-overexpressing-human-connexin-43-seeded-on-poly-l-lactic-acid-scaffolds-for-potential-use-in-cardiac-regeneration
#15
Carlos Sebastián Giménez, Paola Locatelli, Florencia Montini Ballarin, Alejandro Orlowski, Ricardo A Dewey, Milagros Pena, Gustavo Abel Abraham, Ernesto Alejandro Aiello, María Del Rosario Bauzá, Luis Cuniberti, Fernanda Daniela Olea, Alberto Crottogini
Diaphragmatic myoblasts (DMs) are precursors of type-1 muscle cells displaying high exhaustion threshold on account that they contract and relax 20 times/min over a lifespan, making them potentially useful in cardiac regeneration strategies. Besides, it has been shown that biomaterials for stem cell delivery improve cell retention and viability in the target organ. In the present study, we aimed at developing a novel approach based on the use of poly (L-lactic acid) (PLLA) scaffolds seeded with DMs overexpressing connexin-43 (cx43), a gap junction protein that promotes inter-cell connectivity...
November 15, 2017: Cytotechnology
https://www.readbyqxmd.com/read/29143194/the-role-of-crowding-in-parallel-search-peripheral-pooling-is-not-responsible-for-logarithmic-efficiency-in-parallel-search
#16
Anna Madison, Alejandro Lleras, Simona Buetti
Recent results from our laboratory showed that, in fixed-target parallel search tasks, reaction times increase in a logarithmic fashion with set size, and the slope of this logarithmic function is modulated by lure-target similarity. These results were interpreted as being consistent with a processing architecture where early vision (stage one) processes elements in the display in exhaustive fashion with unlimited capacity and with a limitation in resolution. Here, we evaluate the contribution of crowding to our recent logarithmic search slope findings, considering the possibility that peripheral pooling of features (as observed in crowding) may be responsible for logarithmic efficiency...
November 15, 2017: Attention, Perception & Psychophysics
https://www.readbyqxmd.com/read/29142466/higher-pd-1-expression-concurrent-with-exhausted-cd8-t-cells-in-patients-with-de-novo-acute-myeloid-leukemia
#17
Jiaxiong Tan, Shaohua Chen, Yuhong Lu, Danlin Yao, Ling Xu, Yikai Zhang, Lijian Yang, Jie Chen, Jing Lai, Zhi Yu, Kanger Zhu, Yangqiu Li
Objective: To investigate the association between the T cell inhibitory receptor programmed death 1 (PD-1) and T cell exhaustion status in T cells from patients with de novo acute myeloid leukemia (AML) and AML in complete remission (CR). Methods: Surface expression of PD-1 and the exhaustion and immunosenescence markers CD244 and CD57 on CD3+, CD4+ and CD8+ T cells from peripheral blood samples from 20 newly diagnosed, untreated AML patients and 10 cases with AML in CR was analyzed by flow cytometry...
October 2017: Chinese Journal of Cancer Research, Chung-kuo Yen Cheng Yen Chiu
https://www.readbyqxmd.com/read/29141882/transparent-anemone-shrimp-ancylomenes-pedersoni-become-opaque-after-exercise-and-physiological-stress-in-correlation-with-increased-hemolymph-perfusion
#18
Laura E Bagge, Stephen T Kinsey, Justin Gladman, Sönke Johnsen
Whole-body transparency, an effective camouflage strategy in many aquatic species, can be disrupted by environmental and/or physiological stressors. We found that tail-flip escape responses temporarily disrupt the transparency of the anemone shrimp Ancylomenes pedersoni After as few as three tail flips, the previously transparent abdominal muscle became cloudy. Eliciting additional tail flips to the point of exhaustion (16±1 s.e.m.; n=23) resulted in complete opacity, though the original transparency returned after 20-60 min of inactivity...
November 15, 2017: Journal of Experimental Biology
https://www.readbyqxmd.com/read/29141666/intron-retention-enhances-gene-regulatory-complexity-in-vertebrates
#19
Ulf Schmitz, Natalia Pinello, Fangzhi Jia, Sultan Alasmari, William Ritchie, Maria-Cristina Keightley, Shaniko Shini, Graham J Lieschke, Justin J-L Wong, John E J Rasko
BACKGROUND: While intron retention (IR) is now widely accepted as an important mechanism of mammalian gene expression control, it remains the least studied form of alternative splicing. To delineate conserved features of IR, we performed an exhaustive phylogenetic analysis in a highly purified and functionally defined cell type comprising neutrophilic granulocytes from five vertebrate species spanning 430 million years of evolution. RESULTS: Our RNA-sequencing-based analysis suggests that IR increases gene regulatory complexity, which is indicated by a strong anti-correlation between the number of genes affected by IR and the number of protein-coding genes in the genome of individual species...
November 16, 2017: Genome Biology
https://www.readbyqxmd.com/read/29141620/treatment-of-genu-valgum-in-children-by-means-of-temporary-hemiepiphysiodesis-using-eight-plates-short-term-findings
#20
Dirk Zajonz, Eckehard Schumann, Magdalena Wojan, Fabian B Kübler, Christoph Josten, Ulf Bühligen, Christoph E Heyde
BACKGROUND: Idiopathic genu valgum is a frequently diagnosed growth disorder in adolescence. Whenever the possibilities of conservative therapy have been exhausted, leg straightening by means of hemiepiphysiodesis has become the standard form of treatment. Because of their flexible screw-plate connection, eight-Plates have been reported in the literature to lead to lower complications regarding implant loosening and fracture compared to other implants. The aim of this retrospective survey was to analyse our own patient population who were treated for genu valgum by means of temporary hemiepiphysiodesis near the knee using eight-Plates to modulate growth...
November 15, 2017: BMC Musculoskeletal Disorders
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