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https://www.readbyqxmd.com/read/28106720/25-hydroxy-vitamin-d-concentration-is-not-affected-by-severe-or-non-severe-pneumonia-or-inflammation-in-young-children
#1
Johanne Haugen, Ram K Chandyo, Manjeswori Ulak, Maria Mathisen, Sudha Basnet, Karl A Brokstad, Palle Valentiner-Branth, Prakash S Shrestha, Tor A Strand
Poor vitamin D status has been associated with increased risk and severity of respiratory tract infections. Whether or not inflammation and infection affects 25-hydroxy vitamin D (25(OH)D) concentration is controversial and is important in the interpretation of observational studies using plasma-25(OH)D as a biomarker for status. Our objectives were to measure whether 25(OH)D concentration was altered by an episode of acute lower respiratory tract infection and whether markers of inflammation predicted the 25(OH)D concentration...
January 17, 2017: Nutrients
https://www.readbyqxmd.com/read/28106375/acinetodin-and-klebsidin-rna-polymerase-targeting-lasso-peptides-produced-by-human-isolates-of-acinetobacter-gyllenbergii-and-klebsiella-pneumoniae
#2
Mikhail Metelev, Anatolii Arseniev, Leah B Bushin, Konstantin Kuznedelov, Tatiana O Artamonova, Ruslan Kondratenko, Mikhail Khodorkovskii, Mohammad R Seyedsayamdost, Konstantin Severinov
We report the bioinformatic prediction and structural validation of two lasso peptides, acinetodin and klebsidin, encoded by the genomes of several human-associated strains of Acinetobacter and Klebsiella. Computation of the three-dimensional structures of these peptides using NMR NOESY constraints verifies that they contain a lasso motif. Despite the lack of sequence similarity to each other or to microcin J25, a prototypical lasso peptide and transcription inhibitor from Escherichia coli, acinetodin and klebsidin also inhibit transcript elongation by the E...
January 20, 2017: ACS Chemical Biology
https://www.readbyqxmd.com/read/28105127/clinical-study-on-cluster-care-to-prevent-multi-drug-resistant-infection-in-icu-patients-with-severe-encephalopathy
#3
Liu Qiong, Zhu Hui
The value of clinical cluster nursing in the prevention of multi-drug resistant (MDR) infection in patients with severe encephalopathy in ICU was evaluated. ICU patients (n=129) diagnosed with severe encephalopathy between 2012 and 2014 were selected as the study group, while 106 cases of ICU patients diagnosed with severe encephalopathy between 2010 and 2012 were retrospectively selected as the control group. Control group patients were offered conventional integrated nursing care, while the study group patients were offered cluster nursing care...
December 2016: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28103460/-pneumocystis-pneumonia-in-107-hiv-infected-patients-admitted-to-the-department-of-infectious-diseases-at-santa-maria-hospital-lisbon-2002-2013
#4
Vilma Grilo, Aida Pereira
INTRODUCTION: Pneumocystis jirovecii pneumonia remains one of the most common opportunistic illnesses in patients infected with the human immunodeficiency virus. It is currently the most reported AIDS-defining infection in Portugal. The aims of this study were to analyze the features of a human immunodeficiency virus /Pneumocystis jirovecii pneumonia coinfected population, to compare it with the current literature, and to evaluate comparatively subpopulations of patients based on the previous knowledge of the human immunodeficiency virus infection, Pneumocystis jirovecii pneumonia diagnostic method and discharge results...
October 2016: Acta Médica Portuguesa
https://www.readbyqxmd.com/read/28103139/endotoxin-neutralization-by-an-o-antigen-specific-monoclonal-antibody-a-potential-novel-therapeutic-approach-against-klebsiella-pneumoniaest258
#5
Valéria Szijártó, Luis M Guachalla, Katharina Hartl, Cecília Varga, Adriana Badarau, Irina Mirkina, Zehra C Visram, Lukas Stulik, Christine A Power, Eszter Nagy, Gábor Nagy
Klebsiella pneumoniae ST258 is a globally distributed multi-drug resistant pathogen responsible for severe invasive infections. In this study, the different virulence potential of K. pneumoniae ST258 isolates in endotoxin susceptible versus resistant animal models was shown. Furthermore, ST258 clinical isolates were found highly sensitive to the bactericidal effect of naive animal and human serum. These observations imply that LPS, released from the rapidly lysed bacteria, may contribute to the high mortality associated with ST258 bacteremia cases...
January 19, 2017: Virulence
https://www.readbyqxmd.com/read/28103015/antimicrobial-activity-ame-resistance-and-translation-inhibition-studies-of-anthraquinone-neomycin-conjugates
#6
Natalya N Degtyareva, Changjun Gong, Sandra Story, Nathanael Levinson, Adegboyega K Oyelere, Keith D Green, Sylvie Garneau-Tsodikova, Dev Priya Arya
The antibacterial effects of aminoglycosides are based on their association with the A-site of bacterial ribosomal RNA and interference with the translational process in the bacterial cell, causing cell death. The clinical use of aminoglycosides is complicated by resistance and side effects, some of which arise from their interactions with the human mitochondrial 12S rRNA and its deafness-associated mutations, C1494U and A1555G. We report a rapid assay that allows screening of aminoglycoside compounds to these classes of rRNAs...
January 19, 2017: ACS Infectious Diseases
https://www.readbyqxmd.com/read/28102754/enhancement-of-antibody-functions-through-fc-multiplications
#7
Qun Wang, Yan Chen, Mark Pelletier, Romana Cvitkovic, Jessica Bonnell, Chien-Ying Chang, Adem C Koksal, Ellen O'Connor, Xizhe Gao, Xiang-Qing Yu, Herren Wu, C Kendall Stover, William F Dall'Acqua, Xiaodong Xiao
Antibodies carry out a plethora of functions through their crystallizable fragment (Fc) regions, which can be naturally tuned by the adoption of several isotypes and post-translational modifications. Protein engineering enables further Fc function modulations through modifications of the interactions between the Fc and its functional partners, including FcγR, FcRn, complement complex, and additions of auxiliary functional units. Due to the many functions embedded within the confinement of an Fc, a suitable balance must be maintained for a therapeutic antibody to be effective and safe...
January 19, 2017: MAbs
https://www.readbyqxmd.com/read/28101187/severe-pneumonia-due-to-infection-with-candida-krusei-in-a-case-of-suspected-middle-east-respiratory-syndrome-a-case-report-and-literature-review
#8
Mingming Tan, Junwei Wang, Peiyang Hu, Bin Wang, Wanghua Xu, Jiao Chen
Candida krusei (C. krusei) pneumonia is a rare infection that is frequently associated with a poor outcome. The present study reports an unusual case of C. krusei pneumonia that was initially suspected to be a Middle East respiratory syndrome (MERS) case. A 64-year-old Saudi Arabian male patient was admitted to our hospital with complaints of cough and dyspnea that persisted for 6 days. The patient presented fever (oral temperature, 38.5°C) and slight tachypnea (25 respirations/min). A chest computerized tomography demonstrated unclear lung fields, diffuse pathological changes in the two lungs and multiple lymphadenectasis in the retrocaval and para-aortic arch area...
December 2016: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28100903/rhodoccocus-equi-pneumonia-and-paradoxical-immune-reconstitution-inflammatory-syndrome-in-a-patient-with-acquired-immune-deficiency-syndrome-aids
#9
Ritika Zijoo, Ahmed Dirweesh, Nigahus Karabulut
BACKGROUND Pulmonary infections are a major cause of mortality and morbidity in patients infected with human immunodeficiency virus (HIV) and can progress rapidly to respiratory failure and death without appropriate therapy. Herein, we present a rare case of an advanced HIV infection and Rhodoccocus equi (R. equi) pneumonia in a young male who had severe paradoxical immune reconstitution inflammatory syndrome (IRIS). CASE REPORT A 47-year-old nonsmoking Hispanic man with advanced HIV infection presented with severe acute necrotizing pneumonia secondary to R...
January 19, 2017: American Journal of Case Reports
https://www.readbyqxmd.com/read/28100714/the-dynamics-of-the-pulmonary-microbiome-during-mechanical-ventilation-in-the-intensive-care-unit-and-the-association-with-occurrence-of-pneumonia
#10
Tetyana Zakharkina, Ignacio Martin-Loeches, Sébastien Matamoros, Pedro Povoa, Antoni Torres, Janine B Kastelijn, Jorrit J Hofstra, B de Wever, Menno de Jong, Marcus J Schultz, Peter J Sterk, Antonio Artigas, Lieuwe D J Bos
RATIONALE: Ventilator-associated pneumonia (VAP) is the most common nosocomial infections in patients admitted to the ICU. The adapted island model predicts several changes in the respiratory microbiome during intubation and mechanical ventilation. OBJECTIVES: We hypothesised that mechanical ventilation and antibiotic administration decrease the diversity of the respiratory microbiome and that these changes are more profound in patients who develop VAP. METHODS: Intubated and mechanically ventilated ICU-patients were included...
January 18, 2017: Thorax
https://www.readbyqxmd.com/read/28100279/severe-community-acquired-adenovirus-pneumonia-treated-with-oral-ribavirin-a-case-report
#11
Byung Woo Yoon, Yong Geon Song, Seung Hyeun Lee
BACKGROUND: Adenovirus is a common pathogen of acute upper respiratory infection in children and is generally self-limiting. Severe adenovirus infections have been reported in immunocompromised hosts especially bone marrow transplantation recipients due to hematologic malignancy. Severe adenovirus pneumonia in immunocompetent hosts has rarely been reported and optimal treatment has not been established. We report a case of community-acquired severe adenovirus pneumonia which was successfully treated with early administration of oral ribavirin...
January 18, 2017: BMC Research Notes
https://www.readbyqxmd.com/read/28100060/boerhaave-s-syndrome-diagnostic-gastroscopy
#12
Rocío Ferreiro-Iglesias, Manuel Narciso Blanco Freire, Manuel Paz Novo, J Enrique Domínguez Muñoz
A 47-year-old man was attended at the emergency room for severe chest pain after eating sausage with subsequent vomiting and mild upper gastrointestinal bleeding. In the chest radiography we could not see abnormalities. He referred previous episodes of choking without consulting. The urgent gastroscopy detected tertiary contractile activity (nutcracker esophagus) and a foreign body in the lower third of the esophagus. After removing the food bolus, we observed a 4 cm longitudinal tear compatible with esophageal rupture or Boerhaave's syndrome in the right posterior wall of the lower esophagus, proximal to the gastroesophageal junction...
January 2017: Revista Española de Enfermedades Digestivas
https://www.readbyqxmd.com/read/28099716/long-hospitalization-for-severe-ovarian-hyperstimulation-syndrome-with-persistent-right-hydrothorax-and-two-occurrences-of-pneumonia
#13
Jinli Lin, Xueying Li, Linhao Zhang
No abstract text is available yet for this article.
December 10, 2016: International Journal of Gynaecology and Obstetrics
https://www.readbyqxmd.com/read/28099645/mechanical-ventilation-in-coffin-lowry-syndrome-a-case-report
#14
Edmilson Bastos de Moura, Érica Leal Teixeira de Moura, Fábio Ferreira Amorim, Vânia Maria Oliveira
We describe a 27-year-old patient with Coffin-Lowry syndrome with severe community pneumonia, septic shock and respiratory failure. We summarize both the mechanical ventilatory assistance and the hospitalization period in the intensive care unit.
October 2016: Revista Brasileira de Terapia Intensiva
https://www.readbyqxmd.com/read/28099077/disease-complexity-in-a-declining-alaskan-muskox-ovibos-moschatus-population
#15
Josephine A Afema, Kimberlee B Beckmen, Stephen M Arthur, Kathy Burek Huntington, Jonna A K Mazet
The muskox ( Ovibos moschatus ) population inhabiting the eastern North Slope (ENS) of Alaska declined dramatically during 1999-2006, whereas populations in western Alaska (WA) were stable or increasing. To understand morbidity and mortality factors contributing to the decline, Alaska Department of Fish and Game conducted pathologic investigations of carcasses from 2005 until 2008. Additionally, archived sera from both ENS and WA muskoxen collected during 1984-1992, before the documented beginning of the ENS decline; sera collected during 2000, near the beginning of the decline; and contemporary sera (from live capture-release, adult females) collected during 2006, 2007, and 2008 were analyzed to determine whether prevalence of antibody to potential pathogens differed in the two areas or changed over time...
January 18, 2017: Journal of Wildlife Diseases
https://www.readbyqxmd.com/read/28097633/meropenem-dosing-based-on-a-population-pharmacokinetic-pharmacodynamic-model-in-elderly-patients-with-infection-of-the-lower-respiratory-tract
#16
Qing-Tao Zhou, Bei He, Ning Shen, Ying Liang, Li-Na Sun
BACKGROUND: Meropenem is used for the treatment of severe lower respiratory tract infections (LRTIs) caused by multidrug-resistant Gram-negative bacilli. OBJECTIVE: We evaluated the clinical benefits of a strategy of meropenem dosing based on a population pharmacokinetics/pharmacodynamics (PK/PD) model in elderly patients with an LRTI. METHODS: In this prospective single-center open-label randomized controlled trial, 79 elderly patients with an LRTI caused by Gram-negative bacilli were randomized to a study group (SG) or a control group (CG)...
January 17, 2017: Drugs & Aging
https://www.readbyqxmd.com/read/28096986/extracorporeal-membrane-oxygenation-rescue-in-adolescent-with-bronchiolitis-obliterans-organizing-pneumonia-like-wegener-s-granulomatosis
#17
Lars Falk, Lars Mikael Broman
We report a 17-year-old woman with bronchiolitis obliterans-organizing pneumonia (BOOP)-like granulomatosis with polyangiitis developing severe airway obliterations. Pending age, phase and grade of autoimmune treatment, and offering ECMO treatment may be crucial for survival but occasionally preface futility. ECMO-treated patient with BOOP-like GPA has never been described before.
January 2017: Clinical Case Reports
https://www.readbyqxmd.com/read/28096486/phage-derived-protein-induces-increased-platelet-activation-and-is-associated-with-mortality-in-patients-with-invasive-pneumococcal-disease
#18
Rahajeng N Tunjungputri, Fredrick M Mobegi, Amelieke J Cremers, Christa E van der Gaast-de Jongh, Gerben Ferwerda, Jacques F Meis, Nel Roeleveld, Stephen D Bentley, Alexander S Pastura, Sacha A F T van Hijum, Andre J van der Ven, Quirijn de Mast, Aldert Zomer, Marien I de Jonge
: To improve our understanding about the severity of invasive pneumococcal disease (IPD), we investigated the association between the genotype of Streptococcus pneumoniae and disease outcomes for 349 bacteremic patients. A pneumococcal genome-wide association study (GWAS) demonstrated a strong correlation between 30-day mortality and the presence of the phage-derived gene pblB, encoding a platelet-binding protein whose effects on platelet activation were previously unknown. Platelets are increasingly recognized as key players of the innate immune system, and in sepsis, excessive platelet activation contributes to microvascular obstruction, tissue hypoperfusion, and finally multiorgan failure, leading to mortality...
January 17, 2017: MBio
https://www.readbyqxmd.com/read/28096418/multi-institute-analysis-of-carbapenem-resistance-reveals-remarkable-diversity-unexplained-mechanisms-and-limited-clonal-outbreaks
#19
Gustavo C Cerqueira, Ashlee M Earl, Christoph M Ernst, Yonatan H Grad, John P Dekker, Michael Feldgarden, Sinéad B Chapman, João L Reis-Cunha, Terrance P Shea, Sarah Young, Qiandong Zeng, Mary L Delaney, Diane Kim, Ellena M Peterson, Thomas F O'Brien, Mary Jane Ferraro, David C Hooper, Susan S Huang, James E Kirby, Andrew B Onderdonk, Bruce W Birren, Deborah T Hung, Lisa A Cosimi, Jennifer R Wortman, Cheryl I Murphy, William P Hanage
Carbapenem-resistant Enterobacteriaceae (CRE) are among the most severe threats to the antibiotic era. Multiple different species can exhibit resistance due to many different mechanisms, and many different mobile elements are capable of transferring resistance between lineages. We prospectively sampled CRE from hospitalized patients from three Boston-area hospitals, together with a collection of CRE from a single California hospital, to define the frequency and characteristics of outbreaks and determine whether there is evidence for transfer of strains within and between hospitals and the frequency with which resistance is transferred between lineages or species...
January 17, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28096226/disseminated-adenovirus-infection-causing-severe-ards
#20
Steven J Campbell, Jessica A Kynyk, John A Davis
A previously healthy young man with a rare genetic condition presented with severe acute respiratory distress syndrome secondary to pneumonia with septic shock. He did not improve with conventional therapy for his known causal organism thus prompting further workup. He was found to be profoundly immunosuppressed raising our suspicion for atypical organisms. A bronchoalveolar lavage sample was positive via PCR for adenovirus which we suspect exacerbated a pre-existing bacterial pneumonia and led to a severe and non-responsive respiratory failure...
January 17, 2017: BMJ Case Reports
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