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Imaging of pneumonia

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https://www.readbyqxmd.com/read/28826205/construction-of-recombinant-pdu-metabolosome-shells-for-small-molecule-production-in-corynebacterium-glutamicum
#1
Isabel Huber, David J Palmer, Kira N Ludwig, Ian Brown, Martin J Warren, Julia Frunzke
Bacterial microcompartments have significant potential in the area of industrial biotechnology for the production of small molecules, especially involving metabolic pathways with toxic or volatile intermediates. Corynebacterium glutamicum is an established industrial workhorse for the production of amino acids and has been investigated for the production of a variety of further value-added products. Herein, we describe components for the establishment of bacterial microcompartments as production chambers in C...
August 21, 2017: ACS Synthetic Biology
https://www.readbyqxmd.com/read/28822441/-clinical-characteristics-of-bronchopulmonary-foregut-malformation
#2
J Liu, J Yin, X Y Liu, Y H Hu, X L Ma, R Zhang, Q Zeng, B P Xu, K L Shen
Objective: To analyze the clinical characteristics, diagnosis and treatment of bronchopulmonary foregut malformation(BPFM). Method: The clinical manifestations, imaging findings and treatment of 8 patients with BPFM were analyzed retrospectively from January 2006 to May 2016 in Beijing Children's Hospital. Result: The age of children varied from 2 months to 7 years and 3 children were male while 5 female. Symptoms showed cough in 6 cases, fever in 4 cases, bucking when intaking of fluids or foods in 3 cases, tachypnea in 1 case, wheezing in 1 case, vomiting in 1 case, haematemesis in 1 case Pulmonary signs were decreased breath sounds in 4 cases, phlegm rale in 3 cases, shortness of breath in 2 cases, wheeze in 1 case, and retraction in 1 case...
August 2, 2017: Zhonghua Er Ke za Zhi. Chinese Journal of Pediatrics
https://www.readbyqxmd.com/read/28816877/fractures-in-spinal-ankylosing-disorders-a-narrative-review-of-disease-and-injury-types-treatment-techniques-and-outcomes
#3
Tarush Rustagi, Doniel Drazin, Cumhur Oner, Jonathan York, Gregory D Schroeder, Alexander R Vaccaro, Rod J Oskouian, Jens R Chapman
INTRODUCTION: Spinal ankylosing disorders encompass ankylosing spondylitis (AS), disseminated hyperostosis of the spine, and end-stage spondylosis. All these result in a stiffened and frequently deformed spinal column. This makes the spinal column highly susceptible to severe injuries that are commonly associated with unfavorable outcomes. Improved understanding of the underlying disease processes and clinical comorbidities may alter the poor injury related morbidity and mortality outcomes...
September 2017: Journal of Orthopaedic Trauma
https://www.readbyqxmd.com/read/28812367/the-usefulness-of-diffusion-weighted-magnetic-resonance-imaging-performed-in-the-acute-phase-as-an-early-predictor-of-delayed-neuropsychiatric-sequelae-in-acute-carbon-monoxide-poisoning
#4
Y S Kim, Y S Cha, M S Kim, H J Kim, Y S Lee, H Youk, H I Kim, O H Kim, K-C Cha, H Kim, K H Lee, S O Hwang
Delayed onset of neuropsychiatric symptoms after apparent recovery from acute carbon monoxide (CO) poisoning has been described as delayed neuropsychiatric sequelae (DNS). No previous study has determined whether early use of diffusion-weighted magnetic resonance imaging (DWI) can predict which patients will develop DNS in the acute CO poisoning. This retrospective observational study was performed on adult patients with acute CO poisoning consecutively treated over a 17-month period. All included patients with acute CO poisoning underwent DWI to evaluate brain injury within 72 h after CO exposure...
January 1, 2017: Human & Experimental Toxicology
https://www.readbyqxmd.com/read/28809473/aggregation-induced-emission-materials-with-different-electric-charges-as-an-artificial-tongue-design-construction-and-assembly-with-various-pathogenic-bacteria-for-effective-bacterial-imaging-and-discrimination
#5
Guang-Jian Liu, Sheng-Nan Tian, Cui-Yun Li, Guo-Wen Xing, Lei Zhou
Imaging-based total bacterial count and type identification of bacteria play crucial roles in clinical diagnostics, public health, biological and medical science, and environmental protection. Herein, we designed and synthesized a series of tetraphenylethenes (TPEs) functionalized with one or two aldehyde, carboxylic acid, and quaternary ammonium groups, which were successfully used as fluorescent materials for rapid and efficient staining of eight kinds of representative bacterial species, including pathogenic bacteria Vibrio cholera, Klebsiella pneumoniae, and Listeria monocytogenes and potential bioterrorism agent Yersinia pestis...
August 21, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28802696/community-acquired-pneumonia-visualized-on-computed-tomography-but-not-chest-x-ray-pathogens-severity-and-clinical-outcomes
#6
Cameron P Upchurch, Carlos G Grijalva, Richard G Wunderink, Derek J Williams, Grant W Waterer, Evan J Anderson, Yuwei Zhu, Eric M Hart, Frank Carroll, Anna M Bramley, Seema Jain, Kathryn M Edwards, Wesley H Self
BACKGROUND: The clinical significance of pneumonia visualized on computed tomography (CT) in the setting of a normal chest x-ray (CXR) is uncertain. METHODS: In a multicenter prospective surveillance study of adults hospitalized with community-acquired pneumonia (CAP), we compared the presenting clinical features, pathogens, and outcomes of patients with pneumonia visualized on CT but not on concurrent CXR (CT-only pneumonia) and those with pneumonia visualized on CXR...
August 9, 2017: Chest
https://www.readbyqxmd.com/read/28794826/incidental-extravascular-findings-in-computed-tomographic-angiography-for-planning-or-monitoring-endovascular-aortic-aneurysm-repair-smoker-patients-increased-lung-cancer-prevalence
#7
Maria Antonietta Mazzei, Susanna Guerrini, Francesco Gentili, Giuseppe Galzerano, Francesco Setacci, Domenico Benevento, Francesco Giuseppe Mazzei, Luca Volterrani, Carlo Setacci
AIM: To validate the feasibility of high resolution computed tomography (HRCT) of the lung prior to computed tomography angiography (CTA) in assessing incidental thoracic findings during endovascular aortic aneurysm repair (EVAR) planning or follow-up. METHODS: We conducted a retrospective study among 181 patients (143 men, mean age 71 years, range 50-94) referred to our centre for CTA EVAR planning or follow-up. HRCT and CTA were performed before or after 1 or 12 mo respectively to EVAR in all patients...
July 28, 2017: World Journal of Radiology
https://www.readbyqxmd.com/read/28794361/nivolumab-induced-acute-fibrinous-and-organizing-pneumonia-afop
#8
Tsukasa Ishiwata, Takahiro Ebata, Shunichiro Iwasawa, Jun Matsushima, Satoshi Ota, Yukio Nakatani, Kenji Tsushima, Yuji Tada, Koichiro Tatsumi, Yuichi Takiguchi
Although nivolumab is known to cause immune-related interstitial lung diseases (ILD), the detailed characteristics of ILD are still not fully understood. A 68-year-old man was treated with nivolumab because of unresectable sinonasal melanoma, he achieved a complete response soon after the initiation of the therapy and a complete response was thereafter maintained for 30 weeks until the patient experienced dyspnea of subacute onset. CT images revealed patchy infiltrates and ground-glass opacifications. The bronchoalveolar lavage fluid (BALF) contained elevated percentages of lymphocytes (53%) and neutrophils (30%)...
August 10, 2017: Internal Medicine
https://www.readbyqxmd.com/read/28793969/lung-ultrasound-in-internal-medicine-a-bedside-help-to-increase-accuracy-in-the-diagnosis-of-dyspnea
#9
Tiziano Perrone, Alessia Maggi, Carmelo Sgarlata, Ilaria Palumbo, Elisa Mossolani, Sara Ferrari, Ariel Melloul, Roberta Mussinelli, Michele Boldrini, Ambra Raimondi, Aderville Cabassi, Francesco Salinaro, Stefano Perlini
BACKGROUND: Dyspnea is one of the most frequent causes of admission in Internal Medicine wards, leading to a sizeable utilization of medical resources. STUDY DESIGN AND METHODS: The role of bedside lung ultrasound (LUS) was evaluated in 130 consecutive patients (age: 81±9years), in whom blindly collected LUS results were compared with data obtained by clinical examination, medical history, blood analysis, and chest X-ray. Dyspnea etiology was classified as "cardiac" (n=80), "respiratory" (n=36) or "mixed" (n=14), according to the discharge diagnosis (congestive heart failure either alone [n=80] or associated with pneumonia [n=14], pneumonia [n=24], and obstructive disventilatory syndrome [n=12])...
August 6, 2017: European Journal of Internal Medicine
https://www.readbyqxmd.com/read/28790814/bacteriological-incidence-in-pneumonia-patients-with-pulmonary-emphysema-a-bacterial-floral-analysis-using-the-16s-ribosomal-rna-gene-in-bronchoalveolar-lavage-fluid
#10
Keisuke Naito, Kei Yamasaki, Kazuhiro Yatera, Kentaro Akata, Shingo Noguchi, Toshinori Kawanami, Kazumasa Fukuda, Takashi Kido, Hiroshi Ishimoto, Hiroshi Mukae
Pulmonary emphysema is an important radiological finding in chronic obstructive pulmonary disease patients, but bacteriological differences in pneumonia patients according to the severity of emphysematous changes have not been reported. Therefore, we evaluated the bacteriological incidence in the bronchoalveolar lavage fluid (BALF) of pneumonia patients using cultivation and a culture-independent molecular method. Japanese patients with community-acquired pneumonia (83) and healthcare-associated pneumonia (94) between April 2010 and February 2014 were evaluated...
2017: International Journal of Chronic Obstructive Pulmonary Disease
https://www.readbyqxmd.com/read/28778052/interaction-of-levofloxacin-with-lung-surfactant-at-the-air-water-interface
#11
Stephanie Ortiz-Collazos, Evelina D Estrada-López, Alline A Pedreira, Paulo H S Picciani, Osvaldo N Oliveira, Andre S Pimentel
The molecular-level interaction of levofloxacin with lung surfactant was investigated using Langmuir monolayers and atomistic molecular dynamics (MD) simulations. In the simulation, the DPPC/POPC mixed monolayer was used as a lung surfactant model and the molecules of levofloxacin were placed at the air-lipid interface to mimic the adsorption process on the lung surfactant model. The simulation results indicate that amphoteric levofloxacin expands the lung surfactant, also stabilizing the film for levofloxacin fractions until 10% w/w at least...
July 27, 2017: Colloids and Surfaces. B, Biointerfaces
https://www.readbyqxmd.com/read/28774702/candida-and-invasive-mould-diseases-in-non-neutropenic-critically-ill-patients-and-patients-with-haematological-cancer
#12
REVIEW
A L Colombo, J N de Almeida Júnior, Monica A Slavin, Sharon C-A Chen, Tania C Sorrell
Critically ill patients and patients with haematological cancer are HIV-negative populations at high risk of invasive fungal infections. In intensive-care units, candidaemia and intra-abdominal candidiasis predominate, but aspergillosis has emerged as a lethal, under-recognised cause of pneumonia. In patients with haematological malignancies or who have undergone stem-cell transplantations, pulmonary disease due to aspergillus and other mould diseases predominate. In this Series paper, we provide an update on risk assessment, new diagnostic strategies, and therapeutic approaches...
July 31, 2017: Lancet Infectious Diseases
https://www.readbyqxmd.com/read/28772204/automated-patterning-and-probing-with-multiple-nanoscale-tools-for-single-cell-analysis
#13
Jiayao Li, Yeonuk Kim, Boyin Liu, Ruwen Qin, Jian Li, Jing Fu
The nano-manipulation approach that combines Focused Ion Beam (FIB) milling and various imaging and probing techniques enables researchers to investigate the cellular structures in three dimensions. Such fusion approach, however, requires extensive effort on locating and examining randomly-distributed targets due to limited Field of View (FOV) when high magnification is desired. In the present study, we present the development that automates 'pattern and probe' particularly for single-cell analysis, achieved by computer aided tools including feature recognition and geometric planning algorithms...
July 31, 2017: Micron: the International Research and Review Journal for Microscopy
https://www.readbyqxmd.com/read/28770121/necrotizing-pneumonia-an-emerging-problem-in-children
#14
REVIEW
I Brent Masters, Alan F Isles, Keith Grimwood
BACKGROUND: In children, necrotizing pneumonia (NP) is an uncommon, severe complication of pneumonia. It is characterized by destruction of the underlying lung parenchyma resulting in multiple small, thin-walled cavities and is often accompanied by empyema and bronchopleural fistulae. REVIEW: NP in children was first reported in children in 1994, and since then there has been a gradual increase in cases, which is partially explained by greater physician awareness and use of contrast computed tomography (CT) scans, and by temporal changes in circulating respiratory pathogens and antibiotic prescribing...
2017: Pneumonia
https://www.readbyqxmd.com/read/28769901/fluorescence-imaging-of-streptococcus-pneumoniae-with-the-helix-pomatia-agglutinin-hpa-as-a-potential-rapid-diagnostic-tool
#15
Mirian Domenech, Ernesto García
Streptococcus pneumoniae is a common human pathogen and a major causal agent of life-threatening infections that can either be respiratory or non-respiratory. It is well known that the Helix pomatia (edible snail) agglutinin (HPA) lectin shows specificity for terminal αGalNAc residues present, among other locations, in the Forssman pentasaccharide (αGalNAc1→3βGalNAc1→3αGal1→4βGal1→4βGlc). Based on experiments involving choline-independent mutants and different growth conditions, we propose here that HPA recognizes the αGalNAc terminal residues of the cell wall teichoic and lipoteichoic acids of S...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28760082/mycoplasma-pneumoniae-23s-rrna-a2063g-mutation-does-not-influence-chest-radiography-features-in-children-with-pneumonia
#16
Huan Deng, Jun Rui, Deyu Zhao, Feng Liu
Objective To measure the rate of the A2063G mutation in the Mycoplasma pneumoniae ( M. pneumoniae) 23S rRNA domain V in children with pneumonia and to determine the correlation between radiographic findings and the presence of the A2063G mutation. Methods Patients who were hospitalized with a confirmed diagnosis of M. pneumoniae pneumonia were enrolled in this study. M. pneumoniae strains were collected for genotype analysis. Chest radiography was performed on all children prior to and following macrolide treatment...
January 1, 2017: Journal of International Medical Research
https://www.readbyqxmd.com/read/28748093/pathological-features-of-explant-lungs-with-fibrosis-in-autoimmune-pulmonary-alveolar-proteinosis
#17
Manabu Ono, Ryoko Saito, Junya Tominaga, Yoshinori Okada, Shinya Ohkouchi, Tamiko Takemura
Association of fibrosis with autoimmune pulmonary alveolar proteinosis (aPAP) is rare. However, prognoses of such cases are poor and the process of the formation of fibrosis is still unknown. In this study, we report a case of aPAP with progressive fibrosis occurring in a 46-year-old woman. She had undergone several repetitions of whole lung lavage (WLL) for 7 years and granulocyte-macrophage colony-stimulating factor (GM-CSF) inhalation for 3 months; however, the progression of fibrosis was not hindered...
September 2017: Respirology Case Reports
https://www.readbyqxmd.com/read/28747379/advances-in-the-diagnosis-of-pneumonia-in-children
#18
REVIEW
Heather J Zar, Savvas Andronikou, Mark P Nicol
Pneumonia remains a major cause of childhood mortality and morbidity globally. Accurate diagnosis and attribution of the causes of pneumonia are important for measuring the burden of disease, implementing appropriate preventive or treatment strategies, and developing more effective interventions. This review summarizes recent diagnostic advances in radiological techniques, specimen collection, and laboratory methods. Although chest ultrasound and chest magnetic resonance imaging are promising modalities for radiological diagnosis, their role in clinical management and their impact on outcomes need further study...
July 26, 2017: BMJ: British Medical Journal
https://www.readbyqxmd.com/read/28743917/a-rapid-low-cost-and-microfluidic-chip-based-system-for-parallel-identification-of-multiple-pathogens-related-to-clinical-pneumonia
#19
Guoliang Huang, Qin Huang, Lan Xie, Guangxin Xiang, Lei Wang, Hui Xu, Li Ma, Xianbo Luo, Juan Xin, Xinying Zhou, Xiangyu Jin, Lei Zhang
An air-insulated microfluidic chip was designed for the automatic centrifugal distribution of samples to 24-test cells, enabling the parallel identification of multiple clinical pneumonia-related pathogens in 1.45-μL reactions without cross-contamination in 45 min. A portable nucleic acid analyzer that integrates mechanical, confocal optical, electronic, and software functions was also developed to collect fluorescence data in a Ø3 mm imaging field near the optical diffraction limit for highly sensitive fluorescence detection of nucleic acid amplification in real time...
July 25, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28740928/magnetic-resonance-imaging-guided-reirradiation-of-recurrent-and-second-primary-head-and-neck-cancer
#20
Allen M Chen, Minsong Cao, Sophia Hsu, James Lamb, Argin Mikaeilian, Yingli Yang, Nzhde Agazaryan, Daniel A Low, Michael L Steinberg
PURPOSE: To report a single-institutional experience using magnetic resonance imaging (MRI) guided radiation therapy for the reirradiation of recurrent and second cancers of the head and neck. METHODS AND MATERIALS: Between October 2014 and August 2016, 13 consecutive patients with recurrent or new primary cancers of the head and neck that occurred in a previously irradiated field were prospectively enrolled in an institutional registry trial to investigate the feasibility and efficacy of MRI guided radiation therapy using a 0...
April 2017: Advances in Radiation Oncology
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