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https://www.readbyqxmd.com/read/29163511/lactoferrin-in-a-context-of-inflammation-induced-pathology
#1
REVIEW
Marian L Kruzel, Michal Zimecki, Jeffrey K Actor
Much progress has been achieved to elucidate the function of lactoferrin (LTF), an iron-binding glycoprotein, in the milieu of immune functionality. This review represents a unique examination of LTF toward its importance in physiologic homeostasis as related to development of disease-associated pathology. The immunomodulatory nature of this protein derives from its unique ability to "sense" the immune activation status of an organism and act accordingly. Underlying mechanisms are proposed whereby LTF controls disease states, thereby pinpointing regions of entry for LTF in maintenance of various physiological pathways to limit the magnitude of tissue damage...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/29163164/lassbio-897-reduces-lung-injury-induced-by-silica-particles-in-mice-potential-interaction-with-the-a2a-receptor
#2
Vinicius F Carvalho, Tatiana P T Ferreira, Ana C S de Arantes, François Noël, Roberta Tesch, Carlos M R Sant'Anna, Eliezer J L Barreiro, Carlos A M Fraga, Patrícia M Rodrigues E Silva, Marco A Martins
Silicosis is a lethal fibro-granulomatous pulmonary disease highly prevalent in developing countries, for which no proper therapy is available. Among a small series of N-acylhydrazones, the safrole-derived compound LASSBio-897 (3-thienylidene-3, 4-methylenedioxybenzoylhydrazide) raised interest due to its ability to bind to the adenosine A2A receptor. Here, we evaluated the anti-inflammatory and anti-fibrotic potential of LASSBio-897, exploring translation to a mouse model of silicosis and the A2A receptor as a site of action...
2017: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/29159964/blocking-antibodies-induced-by-allergen-specific-immunotherapy-ameliorate-allergic-airway-disease-in-a-human-mouse-chimeric-model
#3
Caterina Vizzardelli, Miriam Gindl, Simone Roos, Christian Möbs, Birgit Nagl, Felix Zimmann, Veronika Sexl, Lukas Kenner, Alina Neunkirchner, Gerhard J Zlabinger, Winfried F Pickl, Wolfgang Pfützner, Barbara Bohle
BACKGROUND: Allergen-specific immunotherapy (AIT) induces specific blocking antibodies (Ab) which are claimed to prevent IgE-mediated reactions to allergens. Additionally, AIT modulates cellular responses to allergens, e.g. by desensitizing effector cells, inducing regulatory T and B lymphocytes and immune deviation. It is still enigmatic which of these mechanisms mediate(s) clinical tolerance. We sought to address the role of AIT-induced blocking Ab separately from cellular responses in a chimeric human/mouse model of respiratory allergy...
November 21, 2017: Allergy
https://www.readbyqxmd.com/read/29135617/lessons-to-learn-from-epidemiologic-studies-in-ards
#4
Bairbre A McNicholas, Grainne M Rooney, John G Laffey
PURPOSE OF REVIEW: Recent advances in our understanding of the epidemiology of ARDS has generated key insights into the incidence, risk factors, demographics, management and outcomes from this devastating clinical syndrome. RECENT FINDINGS: ARDS occurs in 10% of all ICU patients, in 23% of all mechanically ventilated patients, with 5.5 cases per ICU bed each year. Although some regional variation exists regarding ARDS incidence, this may be less than previously thought...
November 11, 2017: Current Opinion in Critical Care
https://www.readbyqxmd.com/read/29114418/stop-being-so-sensitive-an-exceptionally-rare-report-of-ustekinumab-induced-sub-acute-hypersensitivity-pneumonitis
#5
Azka Ali, Jason Chertoff, Christopher Harden, Dara Wakefield, James Wynne
Hypersensitivity pneumonitis (HSP) is a rare syndrome characterised by granulomatous inflammatory lung disease due to repeated sensitisation from a specific antigen. We present the case of a 61-year old male veteran with a history of nodular eczema who presented with 2 weeks of progressive dyspnoea on exertion and pleuritic chest pain. The patient was started on ustekinumab 5 weeks prior to presentation. Initial workup revealed ground-glass opacities on computed tomography (CT) scan of the chest. Cardiac workup was unrevealing with a normal myocardial perfusion stress test...
October 2017: Turkish Journal of Anaesthesiology and Reanimation
https://www.readbyqxmd.com/read/29103416/inhibitory-effect-of-phlai-capsules-on-skin-test-responses-among-allergic-rhinitis-patients-a-randomized-three-way-crossover-study
#6
Pattara Tanticharoenwiwat, Prapasri Kulalert, Thaweephol Dechatiwongse Na Ayudhya, Sittichai Koontongkaew, Weena Jiratchariyakul, Ruedee Soawakontha, Prakongsiri Booncong, Orapan Poachanukoon
BACKGROUND: Zingiber cassumunar Roxb., commonly known as Phlai in Thai, has been used as a traditional medicine in Thailand for the treatment of various diseases, including inflammation and chronic airway disease. OBJECTIVE: The purpose of this study was to assess the antihistaminic effect of Phlai on skin testing. DESIGN, SETTING, PARTICIPANTS AND INTERVENTION: This was a randomized, open-label, three-way crossover study. Twenty allergic rhinitis (AR) patients were enrolled...
November 2017: Journal of Integrative Medicine
https://www.readbyqxmd.com/read/29047085/redox-dependent-calpain-signaling-in-airway-and-pulmonary-vascular-remodeling-in-copd
#7
Laszlo Kovacs, Yunchao Su
The calcium-dependent cytosolic, neutral, thiol endopeptidases, calpains, perform limited cleavage of their substrates thereby irreversibly changing their functions. Calpains have been shown to be involved in several physiological processes such as cell motility, proliferation, cell cycle, signal transduction, and apoptosis. Overactivation of calpain or mutations in the calpain genes contribute to a number of pathological conditions including neurodegenerative disorders, rheumatoid arthritis, cancer, and lung diseases...
2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/29047083/altered-redox-balance-in-the-development-of-chronic-hypoxia-induced-pulmonary-hypertension
#8
Nikki L Jernigan, Thomas C Resta, Laura V Gonzalez Bosc
Normally, the pulmonary circulation is maintained in a low-pressure, low-resistance state with little resting tone. Pulmonary arteries are thin-walled and rely heavily on pulmonary arterial distension and recruitment for reducing pulmonary vascular resistance when cardiac output is elevated. Under pathophysiological conditions, however, active vasoconstriction and vascular remodeling lead to enhanced pulmonary vascular resistance and subsequent pulmonary hypertension (PH). Chronic hypoxia is a critical pathological factor associated with the development of PH resulting from airway obstruction (COPD, sleep apnea), diffusion impairment (interstitial lung disease), developmental lung abnormalities, or high altitude exposure (World Health Organization [WHO]; Group III)...
2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/29029603/the-pathophysiological-role-of-mitochondrial-oxidative-stress-in-lung-diseases
#9
REVIEW
Xiaojing Liu, Zhihong Chen
Mitochondria are critically involved in reactive oxygen species (ROS)-dependent lung diseases, such as lung fibrosis, asbestos, chronic airway diseases and lung cancer. Mitochondrial DNA (mtDNA) encodes mitochondrial proteins and is more sensitive to oxidants than nuclear DNA. Damage to mtDNA causes mitochondrial dysfunction, including electron transport chain impairment and mitochondrial membrane potential loss. Furthermore, damaged mtDNA also acts as a damage-associated molecular pattern (DAMP) that drives inflammatory and immune responses...
October 13, 2017: Journal of Translational Medicine
https://www.readbyqxmd.com/read/29029237/cpap-does-not-reduce-inflammatory-biomarkers-in-patients-with-coronary-artery-disease-and-nonsleepy-obstructive-sleep-apnea-a-randomized-controlled-trial
#10
Erik Thunström, Helena Glantz, Tülay Yucel-Lindberg, Kristin Lindberg, Mustafa Saygin, Yüksel Peker
Objectives: Obstructive sleep apnea (OSA) and enhanced vascular inflammation coexist in patients with coronary artery disease (CAD). Continuous positive airway pressure (CPAP) is first-line treatment for OSA with daytime sleepiness. This analysis of data from the RICCADSA (Randomized Intervention with CPAP in Coronary Artery Disease and Sleep Apnea) trial investigated the effects of CPAP on inflammatory markers in patients with CAD and nonsleepy OSA. Methods: This single-center, randomized, controlled, open-label trial enrolled consecutive revascularized patients with nonsleepy OSA (apnea-hypopnea index >15/h; Epworth Sleepiness Scale score <10)...
November 1, 2017: Sleep
https://www.readbyqxmd.com/read/29028798/obstructive-sleep-apnea-and-rhonchopathy-are-associated-with-downregulation-of-trefoil-factor-family-peptide-3-tff3-implications-of-changes-in-oral-mucus-composition
#11
Regina Siber-Hoogeboom, Martin Schicht, Sebastian Hoogeboom, Friedrich Paulsen, Maximilian Traxdorf
STUDY OBJECTIVES: Trefoil factor family (TFF) peptides belong to the family of mucin-associated peptides and are expressed in most mucosal surfaces. TFF peptides carry out functions such as proliferation and migration enhancement, anti-apoptosis, and wound healing. Moreover, TFFs are associated with mucins and interact with them as "linker peptides", thereby influencing mucus viscosity. To test the hypothesis that in rhonchopathy and obstructive sleep apnea (OSA) changes occur in the expression of TFF3 and -2 that could contribute to changes in mucus viscosity, leading to an increase in upper airway resistance during breathing...
2017: PloS One
https://www.readbyqxmd.com/read/29027869/acceptance-of-telemonitoring-among-patients-with-obstructive-sleep-apnea-syndrome-how-is-the-perceived-interest-by-and-for-patients
#12
Julie S Bros, Caroline Poulet, Nathalie Arnol, Chrystèle Deschaux, Marc Gandit, Marie Charavel
BACKGROUND: Obstructive sleep apnea syndrome, a chronic respiratory disease, requires regular adherence to Continuous Positive Airway Pressure (CPAP) therapy. Telemonitoring may be relevant to support adherence, but nonetheless this raises ethical issues around the intrusive nature of the daily life of patients Objective: To explore the acceptance of telemonitoring by patients and the impact of this on adherence. MATERIALS AND METHODS: A prospective and observational study has been performed with 160 patients who initiated their CPAP therapy...
October 13, 2017: Telemedicine Journal and E-health: the Official Journal of the American Telemedicine Association
https://www.readbyqxmd.com/read/28993393/recurrent-wheeze-and-its-relationship-with-lung-function-and-airway-inflammation-in-preschool-children-a-cross-sectional-study-in-south-korea
#13
Ji Eun Soh, Kyung-Moon Kim, Ji-Won Kwon, Hyung Young Kim, Ju-Hee Seo, Hyo-Bin Kim, So-Yeon Lee, Gwang-Cheon Jang, Dae-Jin Song, Woo Kyung Kim, Young-Ho Jung, Soo-Jong Hong, Jung Yeon Shim
BACKGROUND: Relationship between recurrent wheeze and airway function and inflammation in preschool children is not fully known. OBJECTIVE: To investigate the relationship between recurrent wheeze and airway inflammation, lung function, airway hyper-reactivity (AHR) and atopy in preschool children. DESIGN: Observational study, comparing forced expiratory volume in 1 s (FEV1), forced vital capacity (FVC) and mid-forced expiratory flow (FEF25%-75%), dose-response slope (DRS), exhaled nitric oxide (eNO) and atopic sensitisation between children with recurrent wheeze and those without...
October 8, 2017: BMJ Open
https://www.readbyqxmd.com/read/28983782/electronic-cigarettes-their-constituents-and-potential-links-to-asthma
#14
REVIEW
Phillip W Clapp, Ilona Jaspers
PURPOSE OF REVIEW: Vaping is gaining popularity in the USA, particularly among teens and young adults. While e-cigs are commonly represented as safer alternatives to tobacco cigarettes, little is known regarding the health effects of their short- or long-term use, especially in individuals with pre-existing respiratory diseases such as asthma. Flavored e-cig liquids (e-liquids) and e-cig aerosols contain airway irritants and toxicants that have been implicated in the pathogenesis and worsening of lung diseases...
October 5, 2017: Current Allergy and Asthma Reports
https://www.readbyqxmd.com/read/28982074/autophagy-regulates-duox1-localization-and-superoxide-production-in-airway-epithelial-cells-during-chronic-il-13-stimulation
#15
John D Dickinson, Jenea M Sweeter, Kristi J Warren, Iman M Ahmad, Xavier De Deken, Matthew C Zimmerman, Steven L Brody
The airway epithelium is a broad interface with the environment, mandating well-orchestrated responses to properly modulate inflammation. Classically, autophagy is a homeostatic pathway triggered in response to external cellular stresses, and is elevated in chronic airway diseases. Recent findings highlight the additional role of autophagy in vesicle trafficking and protein secretion, implicating autophagy pathways in complex cellular responses in disease. Th2 cytokines, IL-13 and IL-4, are increased in asthma and other airway diseases contributing to chronic inflammation...
September 22, 2017: Redox Biology
https://www.readbyqxmd.com/read/28978522/cigarette-smoke-activates-cftr-through-ros-stimulated-camp-signaling-in-human-bronchial-epithelial-cells
#16
Francis H Wong, Asmahan AbuArish, Elizabeth Matthes, Mark J Turner, Lana E Greene, Alexandre Cloutier, Renaud Robert, David Y Thomas, Gonzalo Cosa, Andre M Cantin, John W Hanrahan
Air pollution stimulates airway epithelial secretion through a cholinergic reflex that is unaffected in cystic fibrosis (CF), yet a strong correlation is observed between passive smoke exposure in the home and impaired lung function in CF children. Our aim was to study the effects of low smoke concentrations on CFTR function in vitro. Cigarette smoke extract stimulated robust anion secretion that was transient, mediated by cystic fibrosis transmembrane conductance regulator (CFTR), and dependent on cAMP-dependent protein kinase activation...
October 4, 2017: American Journal of Physiology. Cell Physiology
https://www.readbyqxmd.com/read/28968668/rhinovirus-viremia-in-patients-hospitalized-with-community-acquired-pneumonia
#17
Xiaoyan Lu, Eileen Schneider, Seema Jain, Anna M Bramley, Weston Hymas, Chris Stockmann, Krow Ampofo, Sandra R Arnold, Derek J Williams, Wesley H Self, Anami Patel, James D Chappell, Carlos G Grijalva, Evan J Anderson, Richard G Wunderink, Jonathan A McCullers, Kathryn M Edwards, Andrew T Pavia, Dean D Erdman
Background: Rhinoviruses (RVs) are ubiquitous respiratory pathogens that often cause mild or subclinical infections. Molecular detection of RV from the upper respiratory tract can be prolonged, complicating etiologic association in persons with severe lower respiratory tract infections. Little is known about RV viremia and its value as a diagnostic indicator in persons hospitalized with community-acquired pneumonia (CAP). Methods: Sera from RV-positive children and adults hospitalized with CAP were tested for RV by real-time RT-PCR...
August 29, 2017: Journal of Infectious Diseases
https://www.readbyqxmd.com/read/28959121/inhaled-steroids-and-active-smoking-drive-chronic-obstructive-pulmonary-disease-symptoms-and-biomarkers-to-a-greater-degree-than-airflow-limitation
#18
Philip E Silkoff, Dave Singh, J Mark FitzGerald, Andreas Eich, Andrea Ludwig-Sengpiel, Geoffrey C Chupp, Vibeke Backer, Celeste Porsbjerg, Pierre-Olivier Girodet, Mark T Dransfield, Frederic Baribaud, Vedrana S Susulic, Matthew J Loza
RATIONALE: Chronic obstructive pulmonary disease (COPD) is a heterogeneous disease, and development of novel therapeutics requires an understanding of pathophysiologic phenotypes. OBJECTIVES: The purpose of the Airways Disease Endotyping for Personalized Therapeutics (ADEPT) study was to correlate clinical features and biomarkers with molecular characteristics in a well-profiled COPD cohort. METHODS: A total of 67 COPD subjects (forced expiratory volume in the first second of expiration [FEV1]: 45%-80% predicted) and 63 healthy smoking and nonsmoking controls underwent multiple assessments including patient questionnaires, lung function, and clinical biomarkers including fractional exhaled nitric oxide (FENO), induced sputum, and blood...
2017: Biomarker Insights
https://www.readbyqxmd.com/read/28949372/physalis-peruviana-l-inhibits-airway-inflammation-induced-by-cigarette-smoke-and-lipopolysaccharide-through-inhibition-of-extracellular-signal-regulated-kinase-and-induction-of-heme-oxygenase-1
#19
Hyun Ah Park, Jae-Won Lee, Ok-Kyoung Kwon, Gilhye Lee, Yourim Lim, Jung Hee Kim, Jin-Hyub Paik, Sangho Choi, Imam Paryanto, Prasetyawan Yuniato, Doo-Young Kim, Hyung Won Ryu, Sei-Ryang Oh, Seung Jin Lee, Kyung-Seop Ahn
Physalis peruviana L. (PP) is a medicinal herb that has been confirmed to have several biological activities, including anticancer, antioxidant and anti-inflammatory properties. The aim of the present study was to evaluate the protective effect of PP on cigarette smoke (CS)- and lipopolysaccharide (LPS)-induced pulmonary inflammation. Treatment with PP significantly reduced the influx of inflammatory cells in the bronchoalveolar lavage fluid (BALF) and lung of mice with CS- and LPS-induced pulmonary inflammation...
September 15, 2017: International Journal of Molecular Medicine
https://www.readbyqxmd.com/read/28937232/physiology-of-nitric-oxide-in-the-respiratory-system
#20
M Antosova, D Mokra, L Pepucha, J Plevkova, T Buday, M Sterusky, A Bencova
Nitric oxide (NO) is an important endogenous neurotransmitter and mediator. It participates in regulation of physiological processes in different organ systems including airways. Therefore, it is important to clarify its role in the regulation of both airway and vascular smooth muscle, neurotransmission and neurotoxicity, mucus transport, lung development and in the. surfactant production. The bioactivity of NO is highly variable and depends on many factors: the presence and activity of NO-producing enzymes, activity of competitive enzymes (e...
September 22, 2017: Physiological Research
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