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https://www.readbyqxmd.com/read/28101945/epidermal-growth-factor-receptor-egfr-mapk-nuclear-factor-nf-%C3%AE%C2%BAb-il8-a-possible-mechanism-of-particulate-matter-pm-2-5-induced-lung-toxicity
#1
Seung-Chan Jeong, Yoon Cho, Mi-Kyung Song, Eunil Lee, Jae-Chun Ryu
Airway inflammation plays a central role in the pathophysiology of diverse pulmonary diseases. In this study, we investigated whether exposure to particulate matter (PM) 2.5, a PM with an aerodynamic diameter of less than 2.5 µm, enhances inflammation-related toxicity in the human respiratory system through activation of the epidermal growth factor receptor (EGFR) signaling pathway. Through cytokine antibody array analysis of two extracts of PM2.5 [water (W-PM2.5 ) and organic (O-PM2.5 ) soluble extracts] exposed to A549 (human alveolar epithelial cell), we identified eight cytokines changed their expression with W-PM2...
January 19, 2017: Environmental Toxicology
https://www.readbyqxmd.com/read/28099335/micronodular-pattern-of-organizing-pneumonia-case-report-and-systematic-literature-review
#2
François Lebargy, Davy Picard, Jean Hagenburg, Olivier Toubas, Jeanne-Marie Perotin, Sebastian Sandu, Gaëtan Deslee, Sandra Dury
RATIONALE: Organizing pneumonia (OP) is a clinicopathological entity characterized by granulation tissue plugs in the lumen of small airways, alveolar ducts, and alveoli. OP can be cryptogenic (primary) (COP) or secondary to various lung injuries. PATIENT CONCERNS: We report the case of a 38-year-old male smoker with COP presenting in the form of diffuse micronodules on computed tomography (CT) scan and describe the clinical, radiological, and functional characteristics of micronodular pattern of organizing pneumonia (MNOP) based on a review of the literature including 14 cases...
January 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28098883/developmental-expression-of-toll%C3%A2-like-receptors-in-the-guinea-pig-lung
#3
Lingjie Ma, Jiali Yang, Li Yang, Juan Shi, Jing Xue, Yong Li, Xiaoming Liu
The guinea pig is a useful model for investigating infectious and non‑infectious lung diseases due to the sensitivity of its respiratory system and susceptibility to infectious agents. Toll‑like receptors (TLRs) are important components of the innate immune response and are critical for lung immune function. In the present study, the differentiation of epithelial cells in the guinea pig lung was examined during gestation by studying anatomic morphology and the major epithelial cell types using cell type‑specific markers...
January 17, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28097848/-congenital-pulmonary-capillary-hemangiomatosis-in-a-newborn
#4
Sandra L Sposito Cavallo, Luciano A Macias Sobrino, Luifer J Marenco Altamar, Andrés F Mejía Alquichire
Pulmonary capillary hemangiomatosis is a rare entity characterized by the proliferation of capillaries into alveolar walls, interlobular septa, pleura and pulmonary interstitium, without malignant characteristics, with almost constant association with pulmonary hypertension. Until now two cases of congenital presentation have been reported in the literature. This is the third case in a newborn; he has not followed the usual pattern associated with pulmonary hypertension as occurs in most patients with this pathology; the highest incidence is among 20-40 years old...
1, 2017: Archivos Argentinos de Pediatría
https://www.readbyqxmd.com/read/28090053/a-suspected-case-of-an-alveolar-haemorrhage-caused-by-dasatinib
#5
Yoritake Sakoda, Yojiro Arimori, Masakatsu Ueno, Takafumi Matsumoto
A 39-year-old man treated with dasatinib for chronic myelogenous leukaemia presented to our hospital with haemoptysis, coughing, and dyspnoea. Chest radiography and computed tomography revealed ground-glass opacities and a crazy-paving pattern. Bronchoalveolar lavage was not performed due to serious hypoxemia and bleeding. Significant bleeding from the peripheral bronchi led to a diagnosis of an alveolar haemorrhage. Dasatinib-induced alveolar haemorrhaging was suspected based on the clinical findings. His condition improved immediately after dasatinib withdrawal and initiation of steroid therapy...
2017: Internal Medicine
https://www.readbyqxmd.com/read/28081379/direct-gingival-fibroblast-osteoblast-transdifferentiation-via-epigenetics
#6
Y Cho, B Kim, H Bae, W Kim, J Baek, K Woo, G Lee, Y Seol, Y Lee, Y Ku, I Rhyu, H Ryoo
Alveolar bone resorption caused by trauma or periodontal diseases has represented a challenge for both dental clinicians and researchers. In this study, we evaluate the osteogenic potential of human gingival fibroblasts (HGFs) through a direct transdifferentiation from HGFs to functional osteoblasts via epigenetic modification and osteogenic signaling with bone morphogenetic protein 2 (BMP2) in vitro and in vivo. HGF treatment with 5-aza-2'-deoxycytidine (5-aza-dC) induced demethylation in the hypermethylated CpG islands of the osteogenic lineage marker genes RUNX2 and ALP, and subsequent BMP2 treatment successfully drove the fibroblasts to the osteoblasts' lineage...
January 1, 2017: Journal of Dental Research
https://www.readbyqxmd.com/read/28073624/european-college-of-orthodontics-commission-of-affiliation-and-titularisation
#7
Alexis Moreau
: Date of birth: 2/8/1982; sex: male. A. PRETREATMENT RECORDS: 25 years; 7/3/2008. DIAGNOSIS: Very severe Class III malocclusion in adult dentition in hyperdivergent facial pattern; Sagittal dimension: skeletal and dental Class II, severe alveolar retrusion of the mandibular incisors, negative overjet (-11mm); transverse dimension: Class III-related bilateral crossbite with no transverse maxillary deficiency; vertical dimension: incisor overbite, increased height of the lower facial third; Teeth missing prior to treatment: 16-26...
January 7, 2017: International Orthodontics
https://www.readbyqxmd.com/read/28071984/particulate-matter-mediated-release-of-long-pentraxin-3-ptx3-and-vascular-endothelial-growth-factor-vegf-in-vitro-limited-importance-of-endotoxin-and-organic-content
#8
J I Herseth, V Volden, A K Bolling
Exposure to particulate matter (PM) is associated with adverse health effects, but it is still relatively unknown which role PM sources and physicochemical properties play in the observed effects. It was postulated that PM in vitro induces release of long pentraxin 3 (PTX3) and vascular endothelial growth factor (VEGF) and that endotoxin and organic compounds present in the PM regulate this release. A contact coculture of THP-1 human leukemia monocytes and A549 human adenocarcinoma alveolar pneumocytes was exposed to PM from Traffic, Wood, Diesel, and Quartz (10-40 µg/cm(2)) for 12-64 h to determine release of PTX3 and VEGF...
January 10, 2017: Journal of Toxicology and Environmental Health. Part A
https://www.readbyqxmd.com/read/28066875/evaluating-the-effects-of-consolidation-on-intrusion-and-retraction-using-temporary-anchorage-devices-a-fem-study
#9
Monica Namburi, Sleevaraju Nagothu, Chetan S Kumar, N Chakrapani, C H Hanumantharao, Supradeep K Kumar
BACKGROUND: Extraction of premolars and retracting the anterior teeth using mini-implants and anterior retraction hooks became advent now a day. In such treatments, consolidation of arches is not done in regular practice. So, the present study is concentrated on effects of consolidation in two implant and three implant combinations of retraction and intrusion. METHODS: A three-dimensional FEM model of maxillary teeth and periodontal ligament housed in the alveolar bone with the first premolars extracted is generated with appropriate number of elements and nodes...
December 2017: Progress in Orthodontics
https://www.readbyqxmd.com/read/28063015/innate-immunity-against-legionella-pneumophila-during-pulmonary-infections-in-mice
#10
REVIEW
Bonggoo Park, Gayoung Park, Jiyoung Kim, Seon Ah Lim, Kyung-Mi Lee
Legionella pneumophila is an etiological agent of the severe pneumonia known as Legionnaires' disease (LD). This gram-negative bacterium is thought to replicate naturally in various freshwater amoebae, but also replicates in human alveolar macrophages. Inside host cells, legionella induce the production of non-endosomal replicative phagosomes by injecting effector proteins into the cytosol. Innate immune responses are first line defenses against legionella during early phases of infection, and distinguish between legionella and host cells using germline-encoded pattern recognition receptors such as Toll-like receptors , NOD-like receptors, and RIG-I-like receptors, which sense pathogen-associated molecular patterns that are absent in host cells...
January 6, 2017: Archives of Pharmacal Research
https://www.readbyqxmd.com/read/28057540/low-molecular-weight-heparin-coated-and-montelukast-filled-inhalable-particles-a-dual-drug-delivery-system-for-combination-therapy-in-asthma
#11
Brijeshkumar Patel, Jahidur Rashid, Nilesh Gupta, Fakhrul Ahsan
Montelukast, a cysteinyl leukotriene type 1 receptor antagonist, exhibits secondary anti-inflammatory properties when used at higher concentrations. Low molecular weight heparin (LMWH) evokes pronounced anti-inflammatory effects by interrupting leukocyte adhesion and migration. We hypothesized that inhalable particles containing montelukast plus LMWH release both drugs in a sustained fashion and protect the lungs against allergen-induced inflammation. Large porous particles of montelukast and LMWH were prepared using a double-emulsion-solvent-evaporation method...
January 2, 2017: Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/28057010/update-on-lysinuric-protein-intolerance-a-multi-faceted-disease-retrospective-cohort-analysis-from-birth-to-adulthood
#12
Wladimir Mauhin, Florence Habarou, Stéphanie Gobin, Aude Servais, Anaïs Brassier, Coraline Grisel, Célina Roda, Graziella Pinto, Despina Moshous, Fahd Ghalim, Pauline Krug, Nelly Deltour, Clément Pontoizeau, Sandrine Dubois, Murielle Assoun, Louise Galmiche, Jean-Paul Bonnefont, Chris Ottolenghi, Jacques de Blic, Jean-Baptiste Arnoux, Pascale de Lonlay
BACKGROUND: Lysinuric protein intolerance (LPI) is a rare metabolic disease resulting from recessive-inherited mutations in the SLC7A7 gene encoding the cationic amino-acids transporter subunit y(+)LAT1. The disease is characterised by protein-rich food intolerance with secondary urea cycle disorder, but symptoms are heterogeneous ranging from infiltrative lung disease, kidney failure to auto-immune complications. This retrospective study of all cases treated at Necker Hospital (Paris, France) since 1977 describes LPI in both children and adults in order to improve therapeutic management...
January 5, 2017: Orphanet Journal of Rare Diseases
https://www.readbyqxmd.com/read/28054389/health-effects-of-laser-printer-emissions-a-controlled-exposure-study
#13
Stefan Karrasch, Myriam Simon, Britta Herbig, Jeanette Langner, Stefan Seeger, Angelika Kronseder, Stefan Peters, Gisela Dietrich-Gümperlein, Rudolf Schierl, Dennis Nowak, Rudolf A Jörres
Ultrafine particles emitted from laser printers are suspected to elicit adverse health effects. We performed 75-minute exposures to emissions of laser printing devices (LPDs) in a standardized, randomized, cross-over manner in 23 healthy subjects, 14 mild, stable asthmatics and 15 persons reporting symptoms associated with LPD emissions. Low level exposures (LLE) ranged at the particle background (3,000 cm(-3) ), high level exposures (HLE) at 100,000 cm(-3) . Examinations before and after exposures included spirometry, body plethysmography, transfer factors for CO and NO (TLCO, TLNO), bronchial and alveolar NO, cytokines in serum and nasal secretions (IL-1β, IL-5, IL-6, IL-8, GM-CSF, IFNγ, TNFα), serum ECP, and IgE...
January 5, 2017: Indoor Air
https://www.readbyqxmd.com/read/28045846/lung-ultrasound-as-first-line-examination-for-the-diagnosis-of-community-acquired-pneumonia-in-children
#14
Contantinia Boursiani, Maria Tsolia, Chrysoula Koumanidou, Aikaterini Malagari, Marina Vakaki, Georgios Karapostolakis, Argyro Mazioti, Efthymia Alexopoulou
OBJECTIVES: The diagnosis of pediatric community-acquired pneumonia (CAP) is based on clinical criteria. Even though chest x-ray (CXR) is only recommended in severe cases, it is often requested from physicians in mild cases, thus increasing radiation exposure. Lung ultrasound (LUS) is not included in the diagnostic workup. The objective of this study was to evaluate the diagnostic performance of LUS against CXR. METHODS: Children who presented to the emergency department with clinical signs suggesting CAP and had already been evaluated with a CXR were included in the study...
January 2017: Pediatric Emergency Care
https://www.readbyqxmd.com/read/28043506/drug-resistance-pattern-of-mycobacterium-tuberculosis-in-the-province-with-highest-incidence-of-tuberculosis-in-iran
#15
N Mansoori, Masoumeh Douraghi, F Vaziri, A A Rajabloo, M Sheikhi, M Taziki, M Atarjalali
OBJECTIVE/BACKGROUND: Incidence of tuberculosis (TB) in Golestan Province is consistently higher than other provinces of Iran. This study aimed to determine the rate of drug resistance to first-line antibiotics in Mycobacterium tuberculosis (MTB) isolates recovered from new cases in this province. METHODS: The sputum and broncho-alveolar lavage samples from 3828 patients who were suspected for active TB were collected from March 2015 to July 2015. All specimens were subjected to smear microscopy and culture...
December 2016: International Journal of Mycobacteriology
https://www.readbyqxmd.com/read/28042058/eosinophilic-airway-inflammation-in-asthma-is-associated-with-an-altered-airway-microbiome
#16
Asger Sverrild, Pia Kiilerich, Asker Brejnrod, Rebecca Pedersen, Celeste Porsbjerg, Anders Bergqvist, Jonas S Erjefält, Karsten Kristiansen, Vibeke Backer
BACKGROUND: Subjects with asthma have higher microbiome diversity, and an altered composition with more Proteobacteria and less Bacteroidetes compared to healthy controls. Studies comparing airway inflammation and airway microbiome are sparse, especially in subjects not on anti-inflammatory treatment. OBJECTIVE: To describe the relationship between the airway microbiome and patterns of airway inflammation in steroid-free subjects with asthma and healthy controls...
December 29, 2016: Journal of Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/28031838/stromal-micropapillary-predominant-lung-adenocarcinoma-a-rare-histological-phenotype-with-poor-prognosis
#17
Takamitsu Hayakawa, Shogo Tajima, Masaru Tsukui, Yusuke Takanashi, Hiroshi Neyatani, Kazuhito Funai
An extremely rare case of stromal micropapillary predominant lung adenocarcinoma is presented in this study. A 70-year-old woman visited our hospital because of an abnormal shadow on chest X-ray. Chest computed tomography revealed a nodule in the left lower lobe and a mass in the left upper lobe. She underwent an exploratory thoracotomy owing to the suspicion of advanced lung cancer. Pathological examination of the left lower lobe nodule revealed tumour cells with more than half the tumour cells showing stromal micropapillary pattern (SMP), consisting of tumour cells invading the fibrotic stroma...
November 2016: Respirology Case Reports
https://www.readbyqxmd.com/read/28024789/quantitative-evaluation-of-maxillary-alveolar-cortical-bone-thickness-and-density-using-computed-tomography-imaging
#18
Henry Ohiomoba, Andrew Sonis, Alfa Yansane, Bernard Friedland
INTRODUCTION: Primary stability is essential to the success of orthodontic mini-implants (OMIs) and heavily depends on the mechanical retention between OMIs and their supporting bone. Alveolar cortical bone commonly serves as the supporting bone for OMIs during treatment. The purposes of this study were to characterize alveolar cortical bone thickness and density in the maxilla and to explore patient factors that may significantly affect these bone properties. METHODS: Sixty medical computed tomography scans of the maxilla were analyzed from a selected sample of patients seen at the Radiology Department of Boston Children's Hospital...
January 2017: American Journal of Orthodontics and Dentofacial Orthopedics
https://www.readbyqxmd.com/read/28009610/alveolar-soft-part-sarcoma-of-the-female-genital-tract-a-morphologic-immunohistochemical-and-molecular-cytogenetic-study-of-10-cases-with-emphasis-on-its-distinction-from-morphologic-mimics
#19
J Kenneth Schoolmeester, Joseph Carlson, Gary L Keeney, Karen J Fritchie, Esther Oliva, Robert H Young, Marisa R Nucci
Alveolar soft part sarcoma (ASPS) is a morphologically distinctive neoplasm of unknown differentiation that bears a characteristic gene fusion involving ASPSCR1 and TFE3. ASPS can occur in the female genital tract, but is rare. Eleven cases with an initial diagnosis of ASPS at female genital tract sites were evaluated for their morphologic features and immunoprofile using a panel of antibodies (TFE3, HMB45, melan-A, smooth muscle actin, desmin, and h-Caldesmon). In addition, the presence of TFE3 rearrangement and subsequent ASPSCR1-TFE3 fusion were determined by fluorescence in situ hybridization...
December 22, 2016: American Journal of Surgical Pathology
https://www.readbyqxmd.com/read/28004771/spatially-resolved-proteomics-rapid-quantitative-analysis-of-laser-capture-microdissected-alveolar-tissue-samples
#20
Geremy Clair, Paul D Piehowski, Teodora Nicola, Joseph A Kitzmiller, Eric L Huang, Erika M Zink, Ryan L Sontag, Daniel J Orton, Ronald J Moore, James P Carson, Richard D Smith, Jeffrey A Whitsett, Richard A Corley, Namasivayam Ambalavanan, Charles Ansong
Laser capture microdissection (LCM)-enabled region-specific tissue analyses are critical to better understand complex multicellular processes. However, current proteomics workflows entail several manual sample preparation steps and are challenged by the microscopic mass-limited samples generated by LCM, impacting measurement robustness, quantification and throughput. Here, we coupled LCM with a proteomics workflow that provides fully automated analysis of proteomes from microdissected tissues. Benchmarking against the current state-of-the-art in ultrasensitive global proteomics (FASP workflow), our approach demonstrated significant improvements in quantification (~2-fold lower variance) and throughput (>5 times faster)...
December 22, 2016: Scientific Reports
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