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https://www.readbyqxmd.com/read/28217134/proteasome-activity-profiling-uncovers-alteration-of-catalytic-%C3%AE-2-and-%C3%AE-5-subunits-of-the-stress-induced-proteasome-during-salinity-stress-in-tomato-roots
#1
Judit Kovács, Péter Poór, Farnusch Kaschani, Balakumaran Chandrasekar, Tram N Hong, Johana C Misas-Villamil, Bo T Xin, Markus Kaiser, Herman S Overkleeft, Irma Tari, Renier A L van der Hoorn
The stress proteasome in the animal kingdom facilitates faster conversion of oxidized proteins during stress conditions by incorporating different catalytic β subunits. Plants deal with similar kind of stresses and also carry multiple paralogous genes encoding for each of the three catalytic β subunits. Here, we investigated the existence of stress proteasomes upon abiotic stress (salt stress) in tomato roots. In contrast to Arabidopsis thaliana, tomato has a simplified proteasome gene set with single genes encoding each β subunit except for two genes encoding β2...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28216137/low-predictive-value-of-histopathological-scoring-system-for-complications-development-in-children-with-crohn-s-disease
#2
Ondrej Fabian, Ondrej Hradsky, Kristyna Potuznikova, Alena Kalfusova, Lenka Krskova, Ludmila Hornofova, Josef Zamecnik, Jiri Bronsky
OBJECTIVES: In pediatric Crohn's disease (PCD), the benefit of microscopy in disease activity assessment and prediction of clinical outcome is, due to the focality and transmurality of the inflammation, disputable. We investigated whether histopathological scoring system predicts complications in pediatric CD and correlates with endoscopical and clinical scores. METHODS: We performed a retrospective study on 63 patients. Endoscopy in the time of diagnosis was evaluated using the Simple Endoscopic Score (SES) and histopathology with the Global Histology Activity Score, both in its original version (GHAS) and its modification (modGHAS)...
January 15, 2017: Pathology, Research and Practice
https://www.readbyqxmd.com/read/28211869/non-apoptotic-cell-death-in-animal-development
#3
REVIEW
Lena M Kutscher, Shai Shaham
Programmed cell death (PCD) is an important process in the development of multicellular organisms. Apoptosis, a form of PCD characterized morphologically by chromatin condensation, membrane blebbing, and cytoplasm compaction, and molecularly by the activation of caspase proteases, has been extensively investigated. Studies in Caenorhabditis elegans, Drosophila, mice, and the developing chick have revealed, however, that developmental PCD also occurs through other mechanisms, morphologically and molecularly distinct from apoptosis...
February 17, 2017: Cell Death and Differentiation
https://www.readbyqxmd.com/read/28205028/the-outcomes-of-initial-endoscopic-transluminal-drainage-are-superior-to-percutaneous-drainage-for-patients-with-infected-pancreatic-necrosis-a-prospective-cohort-study
#4
Wen-Hua He, Yong Zhu, Yin Zhu, Pi Liu, Hao Zeng, Liang Xia, Chen Yu, Hai-Ming Chen, Xu Shu, Zhi-Jian Liu, You-Xiang Chen, Nong-Hua Lu
BACKGROUND AND STUDY AIM: The commonly used minimally invasive methods for patients with infected pancreatic necrosis (IPN) are initial endoscopic transluminal drainage (ETD) and percutaneous catheter drainage (PCD), which are followed, if necessary, by endoscopic or surgical necrosectomy. This study intends to explore which of the two minimally invasive treatments leads to a better prognosis. PATIENTS AND METHODS: Patients with IPN and an indication for intervention were prospectively enrolled and underwent either initial ETD or PCD followed, if necessary, by endoscopic or surgical necrosectomy...
February 15, 2017: Surgical Endoscopy
https://www.readbyqxmd.com/read/28199887/killing-colon-cancer-cells-through-pcd-pathways-by-a-novel-hyaluronic-acid-modified-shell-core-nanoparticle-loaded-with-rip3-in-combination-with-chloroquine
#5
Xueyan Hou, Chengli Yang, Lijing Zhang, Tingting Hu, Dan Sun, Hua Cao, Fan Yang, Gang Guo, Changyang Gong, Xiaoning Zhang, Aiping Tong, Rui Li, Yu Zheng
Due to extensive apoptosis defects and multidrug resistance, there is great interest regarding non-apoptotic programmed cell death (PCD) pathways, such as lysosomal-mediated programmed cell death (LM-PCD), necroptosis and autophagy. Because there is an intricate effector network among these PCD pathways, it is expected that they may act synergistically in cancer therapy. In this study, chloroquine (CQ) was found to significantly upregulate receptor-interacting protein kinase 3 (RIP3) expression, and RIP3 were involved in CQ-related autophagy...
January 2, 2017: Biomaterials
https://www.readbyqxmd.com/read/28199173/accuracy-of-immunofluorescence-in-the-diagnosis-of-primary-ciliary-dyskinesia
#6
Amelia Shoemark, Emily Frost, Mellisa Dixon, Sarah Ollosson, Kate Kilpin, Mitali Patel, Juliet Scully, Andrew V Rogers, Hannah M Mitchison, Andrew Bush, Claire Hogg
Rationale The standard approach to diagnosis of primary ciliary dyskinesia (PCD) in the UK consists of assessing ciliary function by high-speed-microscopy and ultrastructure by election microscopy, but equipment and expertise is not widely available internationally. The identification of bi-allelic disease causing mutations is also diagnostic, but many disease causing genes are unknown, and testing is not widely available outside the USA. Fluorescent antibodies to ciliary proteins are used to validate research genetic studies, but diagnostic utility in this disease has not been systematically evaluated...
February 15, 2017: American Journal of Respiratory and Critical Care Medicine
https://www.readbyqxmd.com/read/28196022/proactive-versus-standard-percutaneous-catheter-drainage-for-infected-necrotizing-pancreatitis
#7
Janneke van Grinsven, Pieter Timmerman, Krijn P van Lienden, Jan Willem Haveman, Djamila Boerma, Casper H J van Eijck, Paul Fockens, Hjalmar C van Santvoort, Marja A Boermeester, Marc G Besselink
OBJECTIVES: Percutaneous catheter drainage (PCD) is often the first invasive treatment step for infected necrotizing pancreatitis. A proactive PCD strategy, including frequent and early drain revising and upsizing, may reduce the need for surgical necrosectomy and could improve outcomes, but data are lacking. METHODS: Necrotizing pancreatitis patients were identified from in-hospital databases (2004-2014). Patients with primary PCD for infected necrotizing pancreatitis were included...
February 14, 2017: Pancreas
https://www.readbyqxmd.com/read/28195612/relationships-between-spatial-contrast-sensitivity-and-parafoveal-cone-density-in-normal-subjects-and-patients-with-retinal-degeneration
#8
Masakazu Hirota, Takeshi Morimoto, Hiroyuki Kanda, Tibor Karl Lohmann, Suguru Miyagawa, Takao Endo, Tomomitsu Miyoshi, Takashi Fujikado
BACKGROUND AND OBJECTIVE: To investigate the relationship between spatial contrast sensitivity (CS) and parafoveal cone density (PCD). PATIENTS AND METHODS: Fifteen healthy individuals (mean age: 26.1 years ± 4.5 years) and nine patients with hereditary retinal degeneration (mean age: 31.6 years ± 13.4 years) without media opacities were studied. The CS was measured by CSV-1000 (VectorVision, Greenville, OH). The cone mosaic was photographed with an adaptive optics scanning laser ophthalmoscope (AOSLO) with a 1° × 1° field of view centered on the fovea...
February 1, 2017: Ophthalmic Surgery, Lasers & Imaging Retina
https://www.readbyqxmd.com/read/28194564/xylogenesis-in-zinnia-zinnia-elegans-cell-cultures-unravelling%C3%A2-the-regulatory-steps-in-a-complex-developmental-programmed-cell-death-event
#9
REVIEW
Elena T Iakimova, Ernst J Woltering
Physiological and molecular studies support the view that xylogenesis can largely be determined as a specific form of vacuolar programmed cell death (PCD). The studies in xylogenic zinnia cell culture have led to many breakthroughs in xylogenesis research and provided a background for investigations in other experimental models in vitro and in planta . This review discusses the most essential earlier and recent findings on the regulation of xylem elements differentiation and PCD in zinnia and other xylogenic systems...
February 13, 2017: Planta
https://www.readbyqxmd.com/read/28180983/scoliosis-convexity-and-organ-anatomy-are-related
#10
Tom P C Schlösser, Tom Semple, Siobhán B Carr, Simon Padley, Michael R Loebinger, Claire Hogg, René M Castelein
PURPOSE: Primary ciliary dyskinesia (PCD) is a respiratory syndrome in which 'random' organ orientation can occur; with approximately 46% of patients developing situs inversus totalis at organogenesis. The aim of this study was to explore the relationship between organ anatomy and curve convexity by studying the prevalence and convexity of idiopathic scoliosis in PCD patients with and without situs inversus. METHODS: Chest radiographs of PCD patients were systematically screened for existence of significant lateral spinal deviation using the Cobb angle...
February 8, 2017: European Spine Journal
https://www.readbyqxmd.com/read/28178307/transcriptional-regulation-of-male-sterility-in-7b-1-male-sterile-tomato-mutant
#11
Vahid Omidvar, Irina Mohorianu, Tamas Dalmay, Yi Zheng, Zhangjun Fei, Anna Pucci, Andrea Mazzucato, Vendula Večeřová, Michaela Sedlářova, Martin Fellner
The 7B-1 tomato (Solanum lycopersicum L. cv Rutgers) is a male-sterile mutant with enhanced tolerance to abiotic stress, which makes it a potential candidate for hybrid seed breeding and stress engineering. To underline the molecular mechanism regulating the male-sterility in 7B-1, transcriptomic profiles of the 7B-1 male-sterile and wild type (WT) anthers were studied using mRNA sequencing (RNA-Seq). In total, 768 differentially expressed genes (DEGs) were identified, including 132 up-regulated and 636 down-regulated transcripts...
2017: PloS One
https://www.readbyqxmd.com/read/28176794/x-linked-primary-ciliary-dyskinesia-due-to-mutations-in-the-cytoplasmic-axonemal-dynein-assembly-factor-pih1d3
#12
Chiara Olcese, Mitali P Patel, Amelia Shoemark, Santeri Kiviluoto, Marie Legendre, Hywel J Williams, Cara K Vaughan, Jane Hayward, Alice Goldenberg, Richard D Emes, Mustafa M Munye, Laura Dyer, Thomas Cahill, Jeremy Bevillard, Corinne Gehrig, Michel Guipponi, Sandra Chantot, Philippe Duquesnoy, Lucie Thomas, Ludovic Jeanson, Bruno Copin, Aline Tamalet, Christel Thauvin-Robinet, Jean-François Papon, Antoine Garin, Isabelle Pin, Gabriella Vera, Paul Aurora, Mahmoud R Fassad, Lucy Jenkins, Christopher Boustred, Thomas Cullup, Mellisa Dixon, Alexandros Onoufriadis, Andrew Bush, Eddie M K Chung, Stylianos E Antonarakis, Michael R Loebinger, Robert Wilson, Miguel Armengot, Estelle Escudier, Claire Hogg, Serge Amselem, Zhaoxia Sun, Lucia Bartoloni, Jean-Louis Blouin, Hannah M Mitchison
By moving essential body fluids and molecules, motile cilia and flagella govern respiratory mucociliary clearance, laterality determination and the transport of gametes and cerebrospinal fluid. Primary ciliary dyskinesia (PCD) is an autosomal recessive disorder frequently caused by non-assembly of dynein arm motors into cilia and flagella axonemes. Before their import into cilia and flagella, multi-subunit axonemal dynein arms are thought to be stabilized and pre-assembled in the cytoplasm through a DNAAF2-DNAAF4-HSP90 complex akin to the HSP90 co-chaperone R2TP complex...
February 8, 2017: Nature Communications
https://www.readbyqxmd.com/read/28167888/localization-of-barley-yellow-dwarf-virus-movement-protein-modulating-programmed-cell-death-in-nicotiana-benthamiana
#13
Jiwon Ju, Kangmin Kim, Kui-Jae Lee, Wang Hu Lee, Ho-Jong Ju
Barley yellow dwarf virus (BYDV) belongs to Luteovirus and is limited only at phloem related tissues. An open reading frame (ORF) 4 of BYDV codes for the movement protein (MP) of BYDV gating plasmodesmata (PD) to facilitate virus movement. Like other Luteoviruses, ORF 4 of BYDV is embedded in the ORF3 but expressed from the different reading frame in leaky scanning manner. Although MP is a very important protein for systemic infection of BYDV, there was a little information. In this study, MP was characterized in terms of subcellular localization and programmed cell death (PCD)...
February 2017: Plant Pathology Journal
https://www.readbyqxmd.com/read/28165668/plant-life-needs-cell-death-but-does-plant-cell-death-need-cys-proteases
#14
REVIEW
Daniela J Sueldo, Renier A L van der Hoorn
Caspases are key regulators of apoptosis in animals. This correlation has driven plant researchers for decades to look for caspases regulating Programmed Cell Death (PCD) in plants. These studies revealed caspase-like activities, caspase-related proteases and cysteine (Cys) proteases regulating PCD in plants, but identified no caspases and no conserved, apoptosis-like death pathway. Here, we critically review the evidence for Cys proteases implicated in PCD in plants. We discuss the role of papain-like Cys proteases, vacuolar processing enzymes and metacaspases in PCD during the development of tracheary elements, seed coat, suspensor and tapetum and during the hypersensitive response...
February 6, 2017: FEBS Journal
https://www.readbyqxmd.com/read/28163591/cytological-characterization-of-a-thermo-sensitive-cytoplasmic-male-sterile-wheat-line-having-k-type-cytoplasm-of-aegilops-kotschyi
#15
Liying Meng, Zihan Liu, Lingli Zhang, Gan Hu, Xiyue Song
Male sterility is an important tool for obtaining crop heterosis. A thermo-sensitive cytoplasmic male-sterile (TCMS) line was developed recently using a new method based on tiller regeneration. In the present study, we explored the critical growth stages required to maintain thermo-sensitive male sterility in TCMS lines and found that fertility is associated with abnormal tapetal and microspore development. We investigated the fertility and cytology of temperature-treated plant anthers at various developmental stages...
December 2016: Breeding Science
https://www.readbyqxmd.com/read/28148529/peripapillary-perfused-capillary-density-in-primary-open-angle-glaucoma-across-disease-stage-an-optical-coherence-tomography-angiography-study
#16
Lawrence S Geyman, Reena A Garg, Yanin Suwan, Vivek Trivedi, Brian D Krawitz, Shelley Mo, Alexander Pinhas, Apichat Tantraworasin, Toco Y P Chui, Robert Ritch, Richard B Rosen
AIMS: To assess peripapillary perfused capillary density (PCD) in primary open-angle glaucoma (POAG) across stage of disease. METHODS: In this observational, cross-sectional study, 60 eyes with varying stages of POAG and 24 control eyes were imaged on a spectral domain optical coherence tomography angiography system (AngioVue, Optovue, Fremont, California, USA) generating images centred on the optic nerve head. Major blood vessels were removed using custom automated software...
February 1, 2017: British Journal of Ophthalmology
https://www.readbyqxmd.com/read/28138947/energy-sensitive-photon-counting-detector-based-x-ray-computed-tomography
#17
REVIEW
Katsuyuki Taguchi
Energy-sensitive photon counting detectors (PCDs) have recently been developed for medical X-ray computed tomography (CT) imaging and a handful of prototype PCD-CT systems have been built and evaluated. PCDs detect X-rays by using mechanisms that are completely different from the current CT detectors (i.e., energy integrating detectors or EIDs); PCDs count photons and obtain the information of the object tissues (i.e., the effective atomic numbers and mass densities) to be imaged. Therefore, these PCDs have the potential not only for evolution-to improve the current CT images such as providing dose reduction-but also for a revolution-to enable novel applications with a new concept such as molecular CT imaging...
January 30, 2017: Radiological Physics and Technology
https://www.readbyqxmd.com/read/28134637/experiences-in-performing-posterior-calvarial-distraction
#18
Kevin McMillan, Mark Lloyd, Martin Evans, Nicholas White, Hiroshi Nishikawa, Desiderio Rodrigues, Melanie Sharp, Pete Noons, Guirish Solanki, Stephen Dover
The use of posterior calvarial distraction (PCD) for the management of craniosynostosis is well recognized. The advantages of using this technique include increased cranial volume, decreased intracranial pressure, relief of posterior fossa crowding, improved cerebrospinal fluid (CSF) circulation at the cranio-cervical junction with cessation, and possible resolution of syrinx.The authors retrospectively review their first 50 patients who have undergone PCD under the senior author's care in our unit.The demographics, diagnoses, intraoperative approach with techniques in distractor placement and outcomes of each patient were obtained through an electronic craniofacial database and written patient records...
January 27, 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28132852/treatment-of-posttransplant-lymphocele-in-children
#19
Romy Gander, Marino Asensio, Gloria Fatou Royo, Jose Andrés Molino, Ramón Vilalta, Ana Coma, Mercedes Perez, Gema Ariceta
OBJECTIVE: To review our single-center experience in managing posttransplant lymphoceles in pediatric kidney recipients. Lymphoceles are well-known complications after pediatric kidney transplantation (KT). However, there is no standard treatment for lymphoceles, and the literature lacks consensus on which is the most appropriate approach. MATERIALS AND METHODS: We reviewed our retrospective institutional database for recipients of pediatric KT performed between January 2000 and December 2015 who developed lymphoceles...
January 26, 2017: Urology
https://www.readbyqxmd.com/read/28129665/optimization-of-the-mechanical-collimation-for-minibeam-generation-in-proton-minibeam-radiation-therapy
#20
Consuelo Guardiola, Cécile Peucelle, Yolanda Prezado
PURPOSE: The dose tolerances of normal tissues continue to be the main barrier in radiation therapy. To lower it, a novel concept based on a combination of proton therapy and the use of arrays of parallel and thin beams has been recently proposed: proton minibeam radiation therapy (pMBRT). It allies the inherent advantages of protons with the remarkable normal tissue preservation observed when irradiated with submillimetric spatially fractionated beams. Due to multiple Coulomb scattering, the tumor receives a homogeneous dose distribution, while normal tissues in the beam's path benefit from the spatial fractionation of the dose...
January 27, 2017: Medical Physics
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