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https://www.readbyqxmd.com/read/28730574/mechanical-ventilation-guided-by-electrical-impedance-tomography-in-pediatric-acute-respiratory-distress-syndrome
#1
Jeffrey Dmytrowich, Tanya Holt, Karen Schmid, Gregory Hansen
Mechanical ventilation strategies in pediatric acute respiratory distress syndrome (pARDS) continue to advance. Optimizing positive end expiratory pressure (PEEP) and ventilation to recruitable lung can be difficult to clinically achieve. This is in part, due to disease evolution, unpredictable changes in lung compliance, and the inability to assess regional tidal volumes in real time at the bedside. Here we report the utilization of thoracic electrical impedance tomography to guide daily PEEP settings and recruitment maneuvers in a child with pARDS...
July 20, 2017: Journal of Clinical Monitoring and Computing
https://www.readbyqxmd.com/read/28683928/aging-leads-to-inferior-achilles-tendon-mechanics-and-altered-ankle-function-in-rodents
#2
A M Pardes, Z M Beach, H Raja, A B Rodriguez, B R Freedman, L J Soslowsky
Spontaneous rupture of the Achilles tendon is increasingly common in the middle aged population. However, the cause for the particularly high incidence of injury in this age group is not well understood. Therefore, the objective of this study was to identify age-specific differences in the Achilles tendon-muscle complex using an animal model. Functional measures were performed in vivo and tissues were harvested following euthanasia for mechanical, structural, and histological analysis from young, middle aged, and old rats...
June 20, 2017: Journal of Biomechanics
https://www.readbyqxmd.com/read/28652146/downregulation-of-pkc%C3%AE-pard3-pard6b-is-responsible-for-lung-adenocarcinoma-cell-emt-and-invasion
#3
Qiyuan Zhou, Jingbo Dai, Tianji Chen, Laura A Dada, Xu Zhang, Wei Zhang, Malcolm M DeCamp, Robert A Winn, Jacob I Sznajder, Guofei Zhou
Atypical protein kinase C ζ (PKCζ) forms an apico-basal polarity complex with Partitioning Defective (Pard) 3 and Pard6 to regulate normal epithelial cell apico-basolateral polarization. The dissociation of the PKCζ/Pard3/Pard6 complex is essential for the disassembly of the tight/adherens junction and epithelial-mesenchymal transition (EMT) that is critical for tumor spreading. Loss of cell polarity and epithelial organization is strongly correlated with malignancy and tumor progression in some other cancer types...
June 24, 2017: Cellular Signalling
https://www.readbyqxmd.com/read/28546374/pediatric-ards
#4
Ira M Cheifetz
The Pediatric Acute Lung Injury Consensus Conference (PALICC) has provided the critical care community with the first pediatric-focused definition for ARDS. The PALICC recommendations provide guidance on conventional ventilator management, gas exchange goals, use of high-frequency ventilation, adjunct management approaches, and the application of extracorporeal membrane oxygenation for pediatric ARDS (PARDS). Although outcomes for PARDS have improved over the past decade, mortality and morbidity remain significant...
June 2017: Respiratory Care
https://www.readbyqxmd.com/read/28395008/derivation-and-validation-of-a-serum-biomarker-panel-to-identify-infants-with-acute-intracranial-hemorrhage
#5
Rachel Pardes Berger, Brian J Pak, Mariya D Kolesnikova, Janet Fromkin, Richard Saladino, Bruce E Herman, Mary Clyde Pierce, David Englert, Paul T Smith, Patrick M Kochanek
Importance: Abusive head trauma is the leading cause of death from physical abuse. Missing the diagnosis of abusive head trauma, particularly in its mild form, is common and contributes to increased morbidity and mortality. Serum biomarkers may have potential as quantitative point-of-care screening tools to alert physicians to the possibility of intracranial hemorrhage. Objective: To identify and validate a set of biomarkers that could be the basis of a multivariable model to identify intracranial hemorrhage in well-appearing infants using the Ziplex System...
June 5, 2017: JAMA Pediatrics
https://www.readbyqxmd.com/read/28242691/specific-phospholipid-binding-to-na-k-atpase-at-two-distinct-sites
#6
Michael Habeck, Einat Kapri-Pardes, Michal Sharon, Steven J D Karlish
Membrane protein function can be affected by the physical state of the lipid bilayer and specific lipid-protein interactions. For Na,K-ATPase, bilayer properties can modulate pump activity, and, as observed in crystal structures, several lipids are bound within the transmembrane domain. Furthermore, Na,K-ATPase activity depends on phosphatidylserine (PS) and cholesterol, which stabilize the protein, and polyunsaturated phosphatidylcholine (PC) or phosphatidylethanolamine (PE), known to stimulate Na,K-ATPase activity...
March 14, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28127698/estrogen-attenuates-local-inflammasome-expression-and-activation-after-spinal-cord-injury
#7
Adib Zendedel, Fabian Mönnink, Gholamreza Hassanzadeh, Arash Zaminy, Malek Masoud Ansar, Pardes Habib, Alexander Slowik, Markus Kipp, Cordian Beyer
17-estradiol (E2) is a neuroprotective hormone with a high anti-inflammatory potential in different neurological disorders. The inflammatory response initiated by spinal cord injury (SCI) involves the processing of interleukin-1beta (IL-1b) and IL-18 mediated by caspase-1 which is under the control of an intracellular multiprotein complex called inflammasome. We recently described in a SCI model that between 24 and 72 h post-injury, most of inflammasome components including IL-18, IL-1b, NLRP3, ASC, and caspase-1 are upregulated...
January 27, 2017: Molecular Neurobiology
https://www.readbyqxmd.com/read/28073635/pcna-dependent-cellular-activities-tolerate-dramatic-perturbations-in-pcna-client-interactions
#8
Rosemary H C Wilson, Antonio J Biasutto, Lihao Wang, Roman Fischer, Emma L Baple, Andrew H Crosby, Erika J Mancini, Catherine M Green
Proliferating cell nuclear antigen (PCNA) is an essential cofactor for DNA replication and repair, recruiting multiple proteins to their sites of action. We examined the effects of the PCNA(S228I) mutation that causes PCNA-associated DNA repair disorder (PARD). Cells from individuals affected by PARD are sensitive to the PCNA inhibitors T3 and T2AA, showing that the S228I mutation has consequences for undamaged cells. Analysis of the binding between PCNA and PCNA-interacting proteins (PIPs) shows that the S228I change dramatically impairs the majority of these interactions, including that of Cdt1, DNMT1, PolD3(p66) and PolD4(p12)...
February 2017: DNA Repair
https://www.readbyqxmd.com/read/27850572/934-safety-and-efficacy-of-a-preventive-strategy-for-fluid-overload-in-children-with-sepsis-and-pards
#9
Katherine Blaha, Franco Diaz, Julio Quilodran, Tania Medina, Maria Jose Nuñez, Pablo Cruces
No abstract text is available yet for this article.
December 2016: Critical Care Medicine
https://www.readbyqxmd.com/read/27799777/high-frequency-oscillatory-ventilation-is-an-effective-treatment-for-severe-pediatric-acute-respiratory-distress-syndrome-with-refractory-hypoxemia
#10
Yu-Xiong Guo, Zhao-Ni Wang, Ya-Ting Li, Li Pan, Li-Fen Yang, Yan Hu, Yue-Yu Sun, Liang-Ming Cai, Zhuang-Gui Chen
BACKGROUND AND PURPOSE: Early or primary application of high-frequency oscillatory ventilation (HFOV) has been recently suggested not to offer benefit to patients with acute respiratory distress syndrome (ARDS). However, the rescue effects of HFOV on severe pediatric acute respiratory distress syndrome (PARDS) with hypoxemia refractory to conventional mechanical ventilation (CMV) remain unclear. This study aimed to determine whether severe PARDS children would benefit from HFOV when oxygenation deteriorated on CMV and to identify any potential risk factors related to mortality...
2016: Therapeutics and Clinical Risk Management
https://www.readbyqxmd.com/read/27790203/characterization-and-comparative-overview-of-complete-sequences-of-the-first-plasmids-of-pandoraea-across-clinical-and-non-clinical-strains
#11
Delicia Yong, Kok Keng Tee, Wai-Fong Yin, Kok-Gan Chan
To date, information on plasmid analysis in Pandoraea spp. is scarce. To address the gap of knowledge on this, the complete sequences of eight plasmids from Pandoraea spp. namely Pandoraea faecigallinarum DSM 23572(T) (pPF72-1, pPF72-2), Pandoraea oxalativorans DSM 23570(T) (pPO70-1, pPO70-2, pPO70-3, pPO70-4), Pandoraea vervacti NS15 (pPV15) and Pandoraea apista DSM 16535(T) (pPA35) were studied for the first time in this study. The information on plasmid sequences in Pandoraea spp. is useful as the sequences did not match any known plasmid sequence deposited in public databases...
2016: Frontiers in Microbiology
https://www.readbyqxmd.com/read/27783382/short-term-effects-of-neuromuscular-blockade-on-global-and-regional-lung-mechanics-oxygenation-and-ventilation-in-pediatric-acute-hypoxemic-respiratory-failure
#12
Marlon E F Wilsterman, Pauline de Jager, Robert Blokpoel, Inez Frerichs, Sandra K Dijkstra, Marcel J I J Albers, Johannes G M Burgerhof, Dick G Markhorst, Martin C J Kneyber
BACKGROUND: Neuromuscular blockade (NMB) has been shown to improve outcome in acute respiratory distress syndrome (ARDS) in adults, challenging maintaining spontaneous breathing when there is severe lung injury. We tested in a prospective physiological study the hypothesis that continuous administration of NMB agents in mechanically ventilated children with severe acute hypoxemic respiratory failure (AHRF) improves the oxygenation index without a redistribution of tidal volume V T toward non-dependent lung zones...
December 2016: Annals of Intensive Care
https://www.readbyqxmd.com/read/27743763/-fatal-central-nervous-system-hemorrhage-during-acute-lymphoblastic-leukemia-induction
#13
P Pardes-Chavanes, M Afanetti, C Boyer, M Poirée
Intracerebral hemorrhage (ICH) remains a cause of death in hematologic malignancies. Asparaginase represents a key agent in the treatment of acute lymphoblastic leukemia (ALL). The toxicity of asparaginase includes coagulopathy such as thrombotic or bleeding tendency. We report a case of fatal cerebral hemorrhage in a 12-year-old girl treated for ALL. Cerebral hemorrhage occurred after three injections of L-asparaginase. The patient presented with hypofibrinogenemia (0.36g/L), associated with thrombocytopenia (24,000/mm(3))...
December 2016: Archives de Pédiatrie: Organe Officiel de la Sociéte Française de Pédiatrie
https://www.readbyqxmd.com/read/27706723/association-between-functional-polymorphisms-in-the-nitric-oxide-synthase-3-gene-and-pediatric-acute-respiratory-distress-syndrome
#14
L Wei, Y An, J Wang
Nitric oxide mediates multiple physiological functions, including neurotransmission, immune regulation, angiogenesis, antiplatelet activity, and surfactant maturation or secretion. Mice deficient in the nitric oxide synthase 3 (NOS3) gene displayed defective lung vascular development and fatal respiratory distress. Polymorphisms in NOS3 have been reported to be associated with respiratory distress syndrome (RDS). The role of NOS3 polymorphisms as a risk factor for pediatric acute respiratory distress syndrome (PARDS) was evaluated by analyzing the possible functional single nucleotide polymorphisms (SNPs) in the regulatory and coding regions of NOS3...
September 16, 2016: Genetics and Molecular Research: GMR
https://www.readbyqxmd.com/read/27633741/postinjury-biomechanics-of-achilles-tendon-vary-by-sex-and-hormone-status
#15
George W Fryhofer, Benjamin R Freedman, Cody D Hillin, Nabeel S Salka, Adam M Pardes, Stephanie N Weiss, Daniel C Farber, Louis J Soslowsky
Achilles tendon ruptures are common injuries. Sex differences are present in mechanical properties of uninjured Achilles tendon, but it remains unknown if these differences extend to tendon healing. We hypothesized that ovariectomized females (OVX) and males would exhibit inferior postinjury tendon properties compared with females. Male, female, and OVX Sprague-Dawley rats (n = 32/group) underwent acclimation and treadmill training before blunt transection of the Achilles tendon midsubstance. Injured hindlimbs were immobilized for 1 wk, followed by gradual return to activity and assessment of active and passive hindlimb function...
November 1, 2016: Journal of Applied Physiology
https://www.readbyqxmd.com/read/27566735/significance-and-reliability-of-mard-for-the-accuracy-of-cgm-systems
#16
Florian Reiterer, Philipp Polterauer, Michael Schoemaker, Guenther Schmelzeisen-Redecker, Guido Freckmann, Lutz Heinemann, Luigi Del Re
BACKGROUND: There is a need to assess the accuracy of continuous glucose monitoring (CGM) systems for several uses. Mean absolute relative difference (MARD) is the measure of choice for this. Unfortunately, it is frequently overlooked that MARD values computed with data acquired during clinical studies do not reflect the accuracy of the CGM system only, but are strongly influenced by the design of the study. Thus, published MARD values must be understood not as precise values but as indications with some uncertainty...
January 2017: Journal of Diabetes Science and Technology
https://www.readbyqxmd.com/read/27532031/role-of-inhaled-nitric-oxide-in-the-management-of-severe-acute-respiratory-distress-syndrome
#17
REVIEW
Juliette Lucinda Hunt, Ronald A Bronicki, Nick Anas
To date, there have been several systematic reviews with meta-analysis that have shown no reduction in mortality with the use of inhaled nitric oxide (iNO) in patients with acute respiratory distress syndrome (ARDS). Importantly, these reports fail to make a distinction between the pediatric and adult patient. The number of adult patients in these reviews are far greater than the number of pediatric patients, which makes it difficult to interpret the data regarding the role of iNO on the pediatric population...
2016: Frontiers in Pediatrics
https://www.readbyqxmd.com/read/27500782/autologous-tendon-derived-cell-seeded-nanofibrous-scaffolds-improve-rotator-cuff-repair-in-an-age-dependent-fashion
#18
Julianne Huegel, Dong Hwa Kim, James M Cirone, Adam M Pardes, Tyler R Morris, Courtney A Nuss, Robert L Mauck, Louis J Soslowsky, Andrew F Kuntz
Rotator cuff tendon tears are one of the most common shoulder pathologies, especially in the aging population. Due to a poor healing response and degenerative changes associated with aging, rotator cuff repair failure remains common. Although cell-based therapies to augment rotator cuff repair appear promising, it is unknown whether the success of such a therapy is age-dependent. We hypothesized that autologous cell therapy would improve tendon-to-bone healing across age groups, with autologous juvenile cells realizing the greatest benefit...
June 2017: Journal of Orthopaedic Research: Official Publication of the Orthopaedic Research Society
https://www.readbyqxmd.com/read/27440211/stressful-life-events-social-class-and-symptoms-of-schizophrenia
#19
Bernard J Gallagher, Brian J Jones, Mariana Pardes
We test to see if severe stressful life events precede onset of specific symptoms of schizophrenia. Our analyses extend to possible variations in the effect by socioeconomic status (SES) of origin. The medical records of 431 schizophrenic patients were categorized into negative and positive subtypes by application of SANS, SAPS and PANSS scales. SES was bifurcated into low-SES and high-SES groups. Stressful life events were classified into four domains. The study variables were tested by the use of chi-square analysis...
2016: Clinical Schizophrenia & related Psychoses
https://www.readbyqxmd.com/read/27379219/bpd-following-preterm-birth-a-model-for-chronic-lung-disease-and-a-substrate-for-ards-in-childhood
#20
REVIEW
Anita Bhandari, Christopher Carroll, Vineet Bhandari
It has been suggested that pediatric acute respiratory distress syndrome (PARDS) may be a different entity, vis-à-vis adult acute respiratory distress syndrome (ARDS), based on its epidemiology and outcomes. A more pediatric-specific definition of PARDS to include the subgroup of patients with underlying lung (and heart) disease has been proposed. Epidemiological data suggest that up to 13% of the children with ARDS have a history of prematurity and/or underlying chronic lung disease. However, the specific contribution of bronchopulmonary dysplasia (BPD), the most common chronic lung disease in infants, to the development of PARDS is not known...
2016: Frontiers in Pediatrics
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