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https://www.readbyqxmd.com/read/28732053/dysregulation-of-pulmonary-endothelial-protein-c-receptor-and-thrombomodulin-in-severe-falciparum-malaria-associated-ards-relevant-to-hemozoin
#1
Sitang Maknitikul, Natthanej Luplertlop, Georges E R Grau, Sumate Ampawong
To investigate the role of the protein C system, endothelial protein C receptor (EPCR) and thrombomodulin (TM) in the pathogenesis of malaria-associated acute respiratory distress syndrome (ARDS) in relation to hemozoin and proinflammatory cytokines-induced type II pneumocyte injury and -aggravated pulmonary resolution. A total of 29 left-over lung specimens that were obtained from patients who died from severe falciparum malaria were examined. Histopathological, immunohistochemical and electron microscopic analyses revealed that ARDS coexisted with pulmonary edema and systemic bleeding; the severity was dependent on the level of hemozoin deposition in the lung and internal alveolar hemorrhaging...
2017: PloS One
https://www.readbyqxmd.com/read/28731690/the-metal-drives-the-chemistry-dual-functions-of-acireductone-dioxygenase
#2
Aditi R Deshpande, Thomas C Pochapsky, Dagmar Ringe
Acireductone dioxygenase (ARD) from the methionine salvage pathway (MSP) is a unique enzyme that exhibits dual chemistry determined solely by the identity of the divalent transition-metal ion (Fe(2+) or Ni(2+)) in the active site. The Fe(2+)-containing isozyme catalyzes the on-pathway reaction using substrates 1,2-dihydroxy-3-keto-5-methylthiopent-1-ene (acireductone) and dioxygen to generate formate and the ketoacid precursor of methionine, 2-keto-4-methylthiobutyrate, whereas the Ni(2+)-containing isozyme catalyzes an off-pathway shunt with the same substrates, generating methylthiopropionate, carbon monoxide, and formate...
July 21, 2017: Chemical Reviews
https://www.readbyqxmd.com/read/28731666/pulmonary-complications-of-chemical-pneumonia-a-case-report
#3
Semiha Bahceci Erdem, Hikmet T Nacaroglu, Rana Isgüder, Canan S Unsal Karkiner, Hüdaver Alper, Demet Can
Hydrocarbon aspiration (HA) can cause significant lung disease by inducing an inflammatory response, hemorrhagic exudative alveolitis, and loss of surfactant function. The most serious side effect of HA is aspiration pneumonia. Pneumothorax, pneumatocele, acute respiratory distress syndrome (ARDS), pulmonary abscess, bronchopleural fistula, bilateral hemorrhagic pleural effusion and pyopneumothorax were previously reported. Hereby we report a patient hospitalized due to aspiration pneumonia who developed pleurisy and pneumothorax after drinking paint thinner...
August 1, 2017: Archivos Argentinos de Pediatría
https://www.readbyqxmd.com/read/28731431/association-between-cholesterol-exposure-and-neuropathological-findings-the-act-study
#4
Brianne M Bettcher, M Colin Ard, Bruce R Reed, Andreana Benitez, Amanda Simmons, Eric B Larson, Josh A Sonnen, Thomas J Montine, Ge Li, C Dirk Keene, Paul K Crane, Dan Mungas
We characterized the relationship between late life cholesterol exposure and neuropathological outcomes in a community-based, older adult cohort. Adult Changes in Thought (ACT) is a cohort study that enrolls consenting, randomly selected, non-demented people aged ≥65 from a healthcare delivery system. We used late life HDL and total cholesterol lab values from Group Health computerized records, and calculated HDL and non-HDL levels. We evaluated neuropathological outcomes of Alzheimer's disease, cerebral amyloid angiopathy, vascular brain injury, and Lewy body disease...
July 19, 2017: Journal of Alzheimer's Disease: JAD
https://www.readbyqxmd.com/read/28731363/fifty-years-of-research-in-ards-ards-how-it-all-began
#5
Bernard E Levine
No abstract text is available yet for this article.
July 21, 2017: American Journal of Respiratory and Critical Care Medicine
https://www.readbyqxmd.com/read/28730554/bedside-selection-of-positive-end-expiratory-pressure-by-electrical-impedance-tomography-in-hypoxemic-patients-a-feasibility-study
#6
Nilde Eronia, Tommaso Mauri, Elisabetta Maffezzini, Stefano Gatti, Alfio Bronco, Laura Alban, Filippo Binda, Tommaso Sasso, Cristina Marenghi, Giacomo Grasselli, Giuseppe Foti, Antonio Pesenti, Giacomo Bellani
BACKGROUND: Positive end-expiratory pressure (PEEP) is a key element of mechanical ventilation. It should optimize recruitment, without causing excessive overdistension, but controversy exists on the best method to set it. The purpose of the study was to test the feasibility of setting PEEP with electrical impedance tomography in order to prevent lung de-recruitment following a recruitment maneuver. We enrolled 16 patients undergoing mechanical ventilation with PaO2/FiO2 <300 mmHg...
December 2017: Annals of Intensive Care
https://www.readbyqxmd.com/read/28725546/pulmonary-involvement-in-adult-still-s-disease-case-report-and-brief-review-of-literature
#7
Aldo Guerrieri, Giulia Angeletti, Massimiliano Mazzolini, Ilaria Bassi, Stefano Nava
BACKGROUND: Adult onset Still disease (AOSD) is a rare condition characterized by elevated fever along with arthritic symptoms, elevated polymorphonuclear neutrophil count, evanescent rash, and hyperferritinemia. Diagnosis can be made only after have ruled out more frequent conditions, and Yamagouchi or Fautrel criteria should be applied. Parenchimal lung involvement (PLI) is present in less than 5% of AOSD cases and ranges from aspecific reticular interstitial opacities to life threatening conditions, such as acute respiratory distress syndrome (ARDS)...
2017: Respiratory Medicine Case Reports
https://www.readbyqxmd.com/read/28725223/gas-exchange-disturbances-regulate-alveolar-fluid-clearance-during-acute-lung-injury
#8
REVIEW
István Vadász, Jacob I Sznajder
Disruption of the alveolar-capillary barrier and accumulation of pulmonary edema, if not resolved, result in poor alveolar gas exchange leading to hypoxia and hypercapnia, which are hallmarks of acute lung injury and the acute respiratory distress syndrome (ARDS). Alveolar fluid clearance (AFC) is a major function of the alveolar epithelium and is mediated by the concerted action of apically-located Na(+) channels [epithelial Na(+) channel (ENaC)] and the basolateral Na,K-ATPase driving vectorial Na(+) transport...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28724884/effects-of-zinc-finger-protein-a20-on-lipopolysaccharide-lps-induced-pulmonary-inflammation-anti-inflammatory-mediators-in-an-acute-lung-injury-acute-respiratory-distress-syndrome-rat-model
#9
Ding-Qian Wu, Hong-Bo Wu, Mao Zhang, Jian-An Wang
BACKGROUND The aim of this study was to investigate the effects of zinc finger protein A20 on lipopolysaccharide (LPS)-induced pulmonary inflammation/anti-inflammatory mediators in an acute lung injury/acute respiratory distress syndrome (ALI/ARDS) rat model. MATERIAL AND METHODS Forty-eight ALI/ARDS rats were selected and assigned into normal saline (NS) (injected with NS), LPS (injected with LPS), LPS-C1 (injected with pEGFP-C1, NS and LPS), and A20 groups (injected with pEGFP-C1-A20, NS, and LPS). The wet/dry (W/D) ratio of rat lung tissues and total protein concentration and the number of neutrophils in bronchoalveolar lavage fluid (BALF) were detected...
July 20, 2017: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/28724041/effect-of-rhubarb-on-extravascular-lung-water-in-patients-with-acute-respiratory-distress-syndrome
#10
Jianxin He, Xiaoshui Si, Mingxia Ji, Jing Huang, Wenjuan Zheng, Jiao Wang, Junfeng Wang, Lijun Zhu
Objective: The aim of this study was to evaluate the effect of rhubarb on extravascular lung water (EVLW) in patients with acute respiratory distress syndrome (ARDS). Method: A total of 80 patients with ARDS were randomly divided into a treatment group (40 cases) and control group (40 cases). Patients in the treatment group received rhubarb (30.0 g/d) and patients in the control group received conventional therapy for seven consecutive days. Extravascular lung water index (EVLWI) and pulmonary vascular permeability index (PVPI) were determined using pulse contour cardiac output (PiCCO) technology, and the oxygenation index was measured by blood gas analysis at baseline and on days 3, 5 and 7 after treatment...
May 2017: Revista da Associação Médica Brasileira
https://www.readbyqxmd.com/read/28723707/towards-standardised-definitions-for-monitoring-the-continuum-of-hiv-care-in-europe
#11
Annabelle J Gourlay, Anastasia M Pharris, Teymur Noori, Virginie Supervie, Magdalena Rosinska, Ard van Sighem, Giota Touloumi, Kholoud Porter
No abstract text is available yet for this article.
July 18, 2017: AIDS
https://www.readbyqxmd.com/read/28722625/respiratory-complications-of-plasmodium-vivax-malaria-systematic-review-and-meta-analysis
#12
Fernando Val, Kim Machado, Lisiane Barbosa, Jorge Luis Salinas, André Machado Siqueira, Maria Graças Costa Alecrim, Hernando Del Portillo, Quique Bassat, Wuelton Marcelo Monteiro, Marcus Vinícius Guimarães Lacerda
Malaria, a major global public health problem, is mainly caused by Plasmodium falciparum and Plasmodium vivax, and is responsible for nearly half a million deaths annually. Although P. vivax malaria was not believed to cause severe disease, recent robust studies have proved otherwise. However, the clinical spectrum and pathogenesis of severe vivax malaria and, especially, its respiratory complications remain poorly understood. A systematic search for articles reporting respiratory complications associated with vivax malaria was performed in Lilacs, Cochrane, Scielo, Web of Science, and Medline databases irrespective of publication date...
June 12, 2017: American Journal of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/28720039/the-revamp-trial-to-evaluate-hiv-resistance-testing-in-sub-saharan-africa-a-case-study-in-clinical-trial-design-in-resource-limited-settings-to-optimize-effectiveness-and-cost-effectiveness-estimates
#13
Mark J Siedner, Mwebesa B Bwana, Mahomed-Yunus S Moosa, Michelle Paul, Selvan Pillay, Suzanne McCluskey, Isaac Aturinda, Kevin Ard, Winnie Muyindike, Pravikrishnen Moodley, Jaysingh Brijkumar, Tamlyn Rautenberg, Gavin George, Brent Johnson, Rajesh T Gandhi, Henry Sunpath, Vincent C Marconi
BACKGROUND: In sub-Saharan Africa, rates of sustained HIV virologic suppression remain below international goals. HIV resistance testing, while common in resource-rich settings, has not gained traction due to concerns about cost and sustainability. OBJECTIVE: We designed a randomized clinical trial to determine the feasibility, effectiveness, and cost-effectiveness of routine HIV resistance testing in sub-Saharan Africa. APPROACH: We describe challenges common to intervention studies in resource-limited settings, and strategies used to address them, including: (1) optimizing generalizability and cost-effectiveness estimates to promote transition from study results to policy; (2) minimizing bias due to patient attrition; and (3) addressing ethical issues related to enrollment of pregnant women...
July 18, 2017: HIV Clinical Trials
https://www.readbyqxmd.com/read/28719691/associations-of-weight-gain-from-early-to-middle-adulthood-with-major-health-outcomes-later-in-life
#14
Yan Zheng, JoAnn E Manson, Changzheng Yuan, Matthew H Liang, Francine Grodstein, Meir J Stampfer, Walter C Willett, Frank B Hu
Importance: Data describing the effects of weight gain across adulthood on overall health are important for weight control. Objective: To examine the association of weight gain from early to middle adulthood with health outcomes later in life. Design, Setting, and Participants: Cohort analysis of US women from the Nurses' Health Study (1976-June 30, 2012) and US men from the Health Professionals Follow-Up Study (1986-January 31, 2012) who recalled weight during early adulthood (at age of 18 years in women; 21 years in men), and reported current weight during middle adulthood (at age of 55 years)...
July 18, 2017: JAMA: the Journal of the American Medical Association
https://www.readbyqxmd.com/read/28718819/akanthopyrones-a-d-%C3%AE-pyrones-bearing-a-4-o-methyl-%C3%AE-d-glucopyranose-moiety-from-the-spider-associated-ascomycete-akanthomyces-novoguineensis
#15
Wilawan Kuephadungphan, Soleiman E Helaly, Charuwan Daengrot, Souwalak Phongpaichit, Janet Jennifer Luangsa-Ard, Vatcharin Rukachaisirikul, Marc Stadler
Hypocrealean fungi have proved to be prolific bioactive metabolite producers; they have caught the attention of mycologists throughout the world. However, only a few studies on the insect and spider parasitic genus Akanthomyces have so far been carried out. In this study, we report the isolation, structural elucidation and biological activities of four unprecedented glycosylated α-pyrone derivatives, akanthopyrones A-D (1-4), from a culture of Akanthomyces novoguineensis collected in Thailand. The chemical structures of the akanthopyrones were determined by extensive 1D- and 2D-NMR, and HRMS spectroscopic analysis...
July 18, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28717835/focus-on-ecmo-and-ecco2r-in-ards-patients
#16
EDITORIAL
Thomas Bein, Cécile Aubron, Laurent Papazian
No abstract text is available yet for this article.
July 17, 2017: Intensive Care Medicine
https://www.readbyqxmd.com/read/28716645/update-in-management-of-severe-hypoxemic-respiratory-failure
#17
REVIEW
Dharani Kumari Narendra, Dean R Hess, Curtis N Sessler, Habtamu M Belete, Kalpalatha K Guntupalli, Felix Khusid, Charles Mark Carpati, Mark Elton Astiz, Suhail Raoof
Mortality related to severe-moderate and severe ARDS remains high. We searched the literature to update this topic. We defined severe hypoxemic respiratory failure as PaO2/FIO2 < 150 mm Hg (i.e., severe-moderate and severe ARDS). For these patients, we support setting the ventilator to a tidal volume of 4-8 mL/kg predicted body weight (PBW) with plateau pressure ≤30 cm H2O, and initial PEEP of 10 - 12 cm H2O. To promote alveolar recruitment, we propose increasing PEEP in increments of 2 - 3 cm, provided plateau pressure remains ≤30 cm H2O and driving pressure does not increase...
July 14, 2017: Chest
https://www.readbyqxmd.com/read/28714069/discriminant-biomarkers-of-acute-respiratory-distress-syndrome-associated-to-h1n1-influenza-identified-by-metabolomics-hplc-qtof-ms-ms-platform
#18
Alessia Ferrarini, Laura Righetti, Ma Paz Martínez, Mariano Fernández, Annalaura Mastrangelo, Juan P Horcajada, Antoni Betbesé, Andrés Esteban, Jordi Ordóñez, Joaquín de Gea, Jesús Ruiz Cabello, Federica Pellati, José A Lorente, Nicolás Nin, Francisco J Rupérez
Acute Respiratory Distress Syndrome (ARDS) is a serious complication of influenza A (H1N1) virus infection. Its pathogenesis is unknown, and biomarkers are lacking. Untargeted metabolomics allows the analysis of the whole metabolome in a biological compartment, identifying patterns associated with specific conditions. We hypothesized that LC-MS could help identify discriminant metabolites able to define the metabolic alterations occurring in patients with influenza A (H1N1) virus infection that developed ARDS...
July 17, 2017: Electrophoresis
https://www.readbyqxmd.com/read/28713998/identification-of-micrornas-in-acute-respiratory-distress-syndrome-based-on-microrna-expression-profile-in-rats
#19
Yinghui Guan, Xiang Jin, Xingang Liu, Yuanping Huang, Man Wang, Xiaodan Li
Acute respiratory distress syndrome (ARDS) remains a severe disease associated with an ~40% mortality rate and as many as 200,000 new cases annually. MicroRNAs (miRNAs) have important roles in gene regulation and cancer development. The present study aimed to identify the potential roles of miRNAs in the pathogenesis and progression of ARDS. The miRNA expression profile of the GSE57223 dataset was downloaded from the Gene Expression Omnibus database. Following data normalization, differentially expressed miRNAs were identified using the t‑test method...
July 12, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28709419/the-clinical-and-virological-features-of-the-first-imported-case-causing-mers-cov-outbreak-in-south-korea-2015
#20
Ji Yeon Lee, You-Jin Kim, Eun Hee Chung, Dae-Won Kim, Ina Jeong, Yeonjae Kim, Mi-Ran Yun, Sung Soon Kim, Gayeon Kim, Joon-Sung Joh
BACKGROUND: In 2015, the largest outbreak of Middle East respiratory syndrome coronavirus (MERS-CoV) infection outside the Middle East occurred in South Korea. We summarized the epidemiological, clinical, and laboratory findings of the first Korean case of MERS-CoV and analyzed whole-genome sequences of MERS-CoV derived from the patient. CASE PRESENTATION: A 68-year-old man developed fever and myalgia 7 days after returning to Korea, following a 10-day trip to the Middle East...
July 14, 2017: BMC Infectious Diseases
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