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https://www.readbyqxmd.com/read/28645157/secretory-iga-response-against-pseudomonas-aeruginosa-in-the-upper-airways-and-the-link-with-chronic-lung-infection-in-cystic-fibrosis
#1
Renan Mauch, Claudio Rossi, Talita Aiello, José Ribeiro, Antonio Ribeiro, Niels Høiby, Carlos Levy
We assessed the diagnostic ability of an ELISA test for measurement of specific secretory IgA (sIgA) in saliva to identify Cystic Fibrosis (CF) patients with P. aeruginosa chronic lung infection and intermittent lung colonization. A total of 102 Brazilian CF patients and 53 healthy controls were included. Specific serum IgG response was used as a surrogate to distinguish CF patients according to their P. aeruginosa colonization/infection status. The rate of sIgA positivity was 87.1% in CF chronically infected patients (Median value = 181...
June 22, 2017: Pathogens and Disease
https://www.readbyqxmd.com/read/28644724/modeling-long-term-effects-attributed-to-nitrogen-dioxide-no2-and-sulfur-dioxide-so2-exposure-on-asthma-morbidity-in-a-nationwide-cohort-in-israel
#2
N Greenberg, R S Carel, E Derazne, A Tiktinsky, D Tzur, B A Portnov
Studies have provided extensive documentation that acutely elevated environmental exposures contribute to chronic health problems. However, only attention has been paid to the effects of modificate of exposure assessment methods in environmental health investigations, leading to uncertainty and gaps in our understanding of exposure- and dose-response relationships. The goal of the present study was to evaluate whether average or peak concentration exerts a greater influence on asthma outcome, and which of the exposure models may better explain various physiological responses generated by nitrogen dioxide (NO2) or sulfur dioxide (SO2) air pollutants...
June 23, 2017: Journal of Toxicology and Environmental Health. Part A
https://www.readbyqxmd.com/read/28643622/lung-microbiota-and-its-impact-on-the-mucosal-immune-phenotype
#3
Benjamin G Wu, Leopoldo N Segal
The use of culture-independent techniques has allowed us to appreciate that the upper and lower respiratory tract contain a diverse community of microbes in health and disease. Research has only recently explored the effects of the microbiome on the host immune response. The exposure of the human body to the bacterial environment is an important factor for immunological development; thus, the interaction between the microbiome and its host is critical to understanding the pathogenesis of disease. In this article, we discuss the mechanisms that determine the composition of the airway microbiome and its effects on the host immune response...
June 2017: Microbiology Spectrum
https://www.readbyqxmd.com/read/28640478/usefulness-of-office-examination-with-narrow-band-imaging-for-the-diagnosis-of-head-and-neck-squamous-cell-carcinoma-and-follow-up-of-premalignant-lesions
#4
Isabel Vilaseca, Meritxell Valls-Mateus, Anna Nogués, Eduardo Lehrer, Mauricio López-Chacón, Francesc Xavier Avilés-Jurado, José Luis Blanch, Manuel Bernal-Sprekelsen
BACKGROUND: The purpose of this study was to evaluate the value of narrow band imaging (NBI) examination in the office for the diagnosis and follow-up of upper airway premalignant and malignant lesions. METHODS: Four hundred eighty lesions were evaluated with white light endoscopy (WLE) and NBI before a biopsy/excision. Additionally, 151 premalignant lesions were followed up without proven biopsy. Carcinoma-free survival was calculated. The learning curve was analyzed...
June 22, 2017: Head & Neck
https://www.readbyqxmd.com/read/28638495/an-atypical-presentation-of-congenital-pulmonary-airway-malformation-cpam-a-rare-case-with-antenatal-ultrasound-findings-and-review-of-literature
#5
Munnangi Satya Gautam, Srinivas M Naren Satya, Ivvala Sai Prathyusha, K Hema Chandra Reddy, Kamala Retnam Mayilvaganan, Deepthi Raidu
BACKGROUND: Congenital pulmonary airway malformation (CPAM) is a relatively rare congenital anomaly with a wide spectrum of ultrasound features depending on the specific variety of CPAM. Antenatal ultrasound is a valuable, safe, nonionizing, cost-effective, widely available and easily reproducible imaging tool and is indispensable in the diagnosis of CPAM. In this paper, we aimed to report an atypical imaging presentation of CPAM type II in the second trimester, extensively involving all lobes of the left lung...
2017: Polish Journal of Radiology
https://www.readbyqxmd.com/read/28637976/coordinated-control-of-the-tongue-during-suckling-like-activity-and-respiration
#6
Tomio Inoue, Kiyomi Nakayama, Yoshiaki Ihara, Satoshi Tachikawa, Shiro Nakamura, Ayako Mochizuki, Koji Takahashi, Takehiko Iijima
The tongue can move freely and is important in oral motor functions. Tongue movement must be coordinated with movement of the hyoid, mandible, and pharyngeal wall, to which it is attached. Our previous study using isolated brainstem-spinal cord preparations showed that application of N-methyl-D-aspartate induces rhythmic activity in the hypoglossal nerve that is coincident with rhythmic activity in the ipsilateral trigeminal motor nerve. Partial or complete midline transection of the preparation only abolishes activity in the trigeminal motor nerve; therefore, the neuronal network contributing to coordinated activity of the jaw/tongue muscles is located on both sides of the preparation and sends motor commands to contralateral trigeminal motoneurons...
2017: Journal of Oral Science
https://www.readbyqxmd.com/read/28633724/change-in-end-expiratory-lung-volume-during-sleep-in-patients-at-risk-for-obstructive-sleep-apnea
#7
Patrick Koo, Eric J Gartman, Jigme M Sethi, Eyad Kawar, F Dennis McCool
STUDY OBJECTIVES: As lung volume decreases radial traction on the upper airway is reduced, making it more collapsible. The purpose of this study was to measure change in end-expiratory lung volume (EELV) following sleep onset and to evaluate the relationship between change in EELV and sleep-disordered breathing. METHODS: Twenty subjects underwent overnight polysomnography, of whom 14 (70%) had obstructive sleep apnea (OSA). Change in EELV was measured throughout the night using magnetometry...
June 16, 2017: Journal of Clinical Sleep Medicine: JCSM: Official Publication of the American Academy of Sleep Medicine
https://www.readbyqxmd.com/read/28631914/-impact-of-cpap-therapy-on-erectile-function-during-sleep-and-testosterone-level-in-men-with-sleep-apnea-syndrome
#8
I M Madaeva, O N Berdina, N V Semenova, V V Madaev, I N Gutnik, L I Kolesnikova
The article presents the results of a polysomnographic study with simultaneous monitoring spontaneous nocturnal erections - Nocturnal Penile Tumescences (NPT) in 69 men with age-related androgen deficiency (AAD). Of these, 45 patients were diagnosed with obstructive sleep apnea syndrome (OSAS). In 34 of the 45 patients with OSAS, regimens of non-invasive ventilation with positive-positive airway pressure (CPAP) were selected. Titration was carried out using automatic CPAP-devices for 2 months. The control group (n=24) comprised men with AAD, matched by the "copy-pair" type without clinical manifestations of respiratory disturbances during sleep...
June 2017: Urologii︠a︡
https://www.readbyqxmd.com/read/28629917/personalized-management-approach-for-obstructive-sleep-apnea
#9
REVIEW
Jayne C Carberry, Jason Amatoury, Danny J Eckert
Obstructive sleep apnea (OSA) is a heterogeneous disorder. If left untreated, OSA has major health, safety and economic consequences. In addition to varying levels of impairment in pharyngeal anatomy (narrow/collapsible airway), non-anatomical 'phenotypic traits' are also important contributors to OSA for most patients. However, the majority of existing therapies only target the anatomical cause (e.g. continuous positive airway pressure [CPAP], oral appliances, weight loss, positional therapy, and upper airway surgery)...
June 16, 2017: Chest
https://www.readbyqxmd.com/read/28625807/evidence-for-altered-levels-of-immunoglobulin-d-in-the-nasal-airway-mucosa-of-patients-with-chronic-rhinosinusitis
#10
Jin-Young Min, Jayakar V Nayak, Kathryn E Hulse, Whitney W Stevens, Paul A Raju, Julia H Huang, Lydia A Suh, Griet A Van Roey, James E Norton, Roderick G Carter, Caroline P E Price, Ava R Weibman, Ali R Rashan, Eliver E Ghosn, Zara M Patel, Tetsuya Homma, David B Conley, Kevin C Welch, Stephanie Shintani-Smith, Anju T Peters, Leslie C Grammer, Kathleen E Harris, Atsushi Kato, Peter H Hwang, Robert C Kern, Leonore A Herzenberg, Robert P Schleimer, Bruce K Tan
BACKGROUND: Immunoglobulin D (IgD) is an enigmatic antibody isotype best known when co-expressed with IgM on naïve B cells. However, elevated soluble IgD (sIgD) and increased IgD(+)IgM(-) B cell populations have been described in the human upper respiratory mucosa. OBJECTIVE: We assessed whether levels of sIgD and IgD(+) B cells are altered in nasal tissue from patients with chronic rhinosinusitis (CRS). We further characterized IgD(+) B cell populations and explored clinical and local inflammatory factors associated with tissue sIgD levels...
June 15, 2017: Journal of Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/28623043/nasal-airway-evaluation-in-obstructive-sleep-apnoea-patients-volumetric-tomography-and-endoscopic-findings
#11
M M Rodrigues, M F R Gabrielli, O A Garcia Junior, V A Pereira Filho, L A Passeri
Obstructive sleep apnoea (OSA) results from the recurrent collapse of the upper airway during sleep. Nasal abnormalities influence the stability of the pharynx. The aim of this study was to evaluate the volumetric and anatomical changes of the nasal cavity in patients with OSA. The Nasal Obstruction Symptom Evaluation (NOSE) scale was used to grade nasal obstruction. Sleep-related breathing disorders were evaluated by polysomnography. The nasal airway volume was obtained from computed tomography scans through volumetric reconstruction of the nasal airway...
June 13, 2017: International Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28620866/high-levels-of-igf-1-predict-difficult-intubation-of-patients-with-acromegaly
#12
Yu Zhang, Xiaopeng Guo, Lijian Pei, Zhuhua Zhang, Gang Tan, Bing Xing
PURPOSE: To investigate the characteristics of difficult intubation and identify novel efficient predictors in patients with acromegaly. METHODS: Patients with either untreated acromegaly or non-functional pituitary adenomas were enrolled. Patients with acromegaly underwent hormone assays, upper airway computed tomography and magnetic resonance imaging examinations and preoperative overnight polysomnography. The modified Mallampati classification, mouth opening, neck circumference, and neck extension were assessed, and the Cormack-Lehane grades and the time of tracheal intubation were recorded...
June 15, 2017: Endocrine
https://www.readbyqxmd.com/read/28620266/mechanistic-evaluation-of-the-impact-of-smoking-and-chronic-obstructive-pulmonary-disease-on-the-nasal-epithelium
#13
Marja Talikka, Florian Martin, Alain Sewer, Grégory Vuillaume, Patrice Leroy, Karsta Luettich, Nveed Chaudhary, Michael J Peck, Manuel C Peitsch, Julia Hoeng
Chronic obstructive pulmonary disease (COPD) is one of the major causes of chronic morbidity and mortality worldwide. The development of markers of COPD onset is hampered by the lack of accessibility to the primary target tissue, and there is a need to consider other sample sources as surrogates for biomarker research. Airborne toxicants pass through the nasal epithelium before reaching the lower airways, and the similarity with bronchial histology makes it an attractive surrogate for lower airways. In this work, we describe the transcriptomics findings from the nasal epithelia of subjects enrolled in a clinical study focusing on the identification of COPD biomarkers...
2017: Clinical Medicine Insights. Circulatory, Respiratory and Pulmonary Medicine
https://www.readbyqxmd.com/read/28620058/intermittent-hypercapnic-hypoxia-during-sleep-does-not-induce-ventilatory-long-term-facilitation-in-healthy-males
#14
Naomi Louise Deacon, Doug R McEvoy, Daniel L Stadler, Peter G Catcheside
Intermittent hypoxia induced ventilatory neuroplasticity is likely important in obstructive sleep apnea pathophysiology. Although concomitant CO2 levels and arousal state critically influence neuroplastic effects of intermittent hypoxia, no studies have investigated intermittent hypercapnic hypoxia effects during sleep in humans. Thus, the purpose of this study was to investigate if intermittent hypercapnic hypoxia during sleep induces neuroplasticity (ventilatory long-term facilitation and increased chemoreflex responsiveness) in humans...
June 15, 2017: Journal of Applied Physiology
https://www.readbyqxmd.com/read/28619065/open-issues-in-mucopolysaccharidosis-type-i-hurler
#15
REVIEW
Rossella Parini, Federica Deodato, Maja Di Rocco, Edoardo Lanino, Franco Locatelli, Chiara Messina, Attilio Rovelli, Maurizio Scarpa
Mucopolysaccharidosis I-Hurler (MPS I-H) is the most severe form of a metabolic genetic disease caused by mutations of IDUA gene encoding the lysosomal α-L-iduronidase enzyme. MPS I-H is a rare, life-threatening disease, evolving in multisystem morbidity including progressive neurological disease, upper airway obstruction, skeletal deformity and cardiomyopathy. Allogeneic hematopoietic stem cell transplantation (HSCT) is currently the gold standard for the treatment of MPS I-H in patients diagnosed and treated before 2-2...
June 15, 2017: Orphanet Journal of Rare Diseases
https://www.readbyqxmd.com/read/28614224/a-case-report-of-local-treatment-of-inoperable-squamous-cell-lung-carcinoma-with-convex-probe-endobronchial-ultrasound-guided-intratumoral-injection-of-cisplatin-in-a-patient-with-severe-copd
#16
Xiaochen Li, Xiansheng Liu, Xiaoling Rao, Jianping Zhao, Yongjian Xu, Min Xie
RATIONALE: Endobronchial ultrasound as a powerful diagnostic technology can also be used to perform intratumoral chemotherapy for extraluminal tumor. PATIENT CONCERNS: A 69-year-old man with chronic obstructive pulmonary disease (COPD) presented with worsening dyspnea. A pulmonary function test showed severe airway obstruction and that forced expiratory volume in 1 s was 43% of the predicted value after a bronchodilator. DIAGNOSES: A bronchoscopy and histopathological analyses revealed a squamous cell carcinoma mostly located outside of the lumen with central airway obstruction...
June 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28614095/the-value-of-dynamic-preload-variables-during-spontaneous-ventilation
#17
Azriel Perel
PURPOSE OF REVIEW: To discuss the physiological significance and clinical value of dynamic preload variables in spontaneously breathing patients. RECENT FINDINGS: Dynamic preload variables reflect the response of the cardiac output to a modification of preload and can therefore be used to assess fluid responsiveness. Continuous dynamic parameters that are calculated from the variations in the arterial and plethysmographic waveforms following a mechanical breath have been shown to predict fluid responsiveness much better than static preload parameters...
June 12, 2017: Current Opinion in Critical Care
https://www.readbyqxmd.com/read/28612045/lack-of-trpm5-expressing-microvillous-cells-in-mouse-main-olfactory-epithelium-leads-to-impaired-odor-evoked-responses-and-olfactory-guided-behavior-in-a-challenging-chemical-environment
#18
Kayla Lemons, Ziying Fu, Imad Aoudé, Tatsuya Ogura, Julianna Sun, Justin Chang, Kenechukwu Mbonu, Ichiro Matsumoto, Hiroyuki Arakawa, Weihong Lin
The mammalian main olfactory epithelium (MOE) modifies its activities in response to changes in the chemical environment. This process is essential for maintaining the functions of the olfactory system and the upper airway. However, mechanisms involved in this functional maintenance, especially those occurring via paracrine regulatory pathways within the multicellular MOE, are poorly understood. Previously, a population of non-neuronal, transient receptor potential M5-expressing microvillous cells (TRPM5-MCs) was identified in the MOE, and the initial characterization of these cells showed that they are cholinergic and responsive to various xenobiotics including odorants at high concentrations...
May 2017: ENeuro
https://www.readbyqxmd.com/read/28611336/safety-of-non-anesthesia-provider-administered-propofol-sedation-in-non-advanced-gastrointestinal-endoscopic-procedures-a-meta-analysis
#19
REVIEW
Basavana Gouda, Gowri Gouda, Anuradha Borle, Akash Singh, Ashish Sinha, Preet M Singh
BACKGROUND/AIMS: The aim of the study was to evaluate the safety of non-anesthesia provider (NAPP) administered propofol sedation in patients undergoing non-advanced gastrointestinal (GI) endoscopic procedures. MATERIALS AND METHODS: Pubmed, Embase, Cochrane central register of controlled trials, Scopus, and Web of Science databases were searched for prospective observational trials involving non-advanced endoscopic procedures. From a total of 608 publications, 25 [colonoscopy (9), upper GI endoscopy (5), and combined procedures (11)] were identified to meet inclusion criteria and were analyzed...
May 2017: Saudi Journal of Gastroenterology: Official Journal of the Saudi Gastroenterology Association
https://www.readbyqxmd.com/read/28611139/unrecognised-diaphragmatic-hernia-in-a-refugee-child-an-incidental-diagnosis
#20
Dimitri Poddighe, Tiziana Boggini, Salvatore Savasta, Gian Luigi Marseglia
A 4-year-old boy from Syria was evaluated at the emergency department because of an upper airway viral illness. His physical examination showed a significant intensity reduction of all heart sounds in the absence of any other pathological signs. As the child was affected with Down's syndrome and had suffered thoracic and abdominal trauma because of bombardments, a diaphragmatic hernia was immediately suspected and was confirmed through a simple chest X-ray. A careful clinical examination is crucial in refugee children and adolescents, as several medical and surgical disorders could have escaped previously...
June 13, 2017: BMJ Case Reports
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