keyword
MENU ▼
Read by QxMD icon Read
search

mucolytic

keyword
https://www.readbyqxmd.com/read/29903912/molecular-principles-for-heparin-oligosaccharide-based-inhibition-of-neutrophil-elastase-in-cystic-fibrosis
#1
Apparao B Kummarapurugu, Daniel K Afosah, Nehru Viji Sankaranarayanan, Rahaman Navaz Gangji, Shuo Zheng, Thomas P Kennedy, Bruce K Rubin, Judith A Voynow, Umesh R Desai
Cystic fibrosis (CF)1 is a multi-factorial disease in which dysfunction of protease-antiprotease balance plays a key role. The current CF therapy relies on dornase alfa, low dose macrolide antibiotics, hypertonic saline and antibiotics, and does not address the high neutrophil elastase (NE) activity observed in the lung and sputum of CF patients. Our hypothesis is that variants of heparin, which potently inhibit NE but are not anticoagulant, would help restore the protease-antiprotease balance in CF. To realize this concept, we studied molecular principles governing the effectiveness of different heparins, especially 2-O,3-O-desulfated heparin (ODSH), in the presence of sputum components and therapeutic agents...
June 14, 2018: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/29894558/interventions-for-preventing-distal-intestinal-obstruction-syndrome-dios-in-cystic-fibrosis
#2
REVIEW
Jessica Green, Francis J Gilchrist, Will Carroll
BACKGROUND: Cystic fibrosis (CF) is the most common, life-limiting, genetically inherited disease. It affects multiple organs, particularly the respiratory system. However, gastrointestinal problems such as constipation and distal intestinal obstruction syndrome (DIOS) are also important and well-recognised complications in CF. They share similar symptoms e.g. bloating, abdominal pain, but are distinct conditions. Constipation occurs when there is gradual faecal impaction of the colon, but DIOS occurs when there is an accumulation of faeces and sticky mucus, forming a mass in the distal part of the small intestine...
June 12, 2018: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/29871879/impact-of-pegylation-on-the-mucolytic-activity-of-recombinant-human-deoxyribonuclease-i-in-cystic-fibrosis-sputum
#3
Marie-Julie Guichard, David Kinoo, Anne-Sophie Aubriot, Nathalie Bauwens, Jordane Gougué, François Vermeulen, Patrick Lebecque, Teresinha Leal, Rita Vanbever
Highly viscous mucus and its impaired clearance characterize the lungs of patients with cystic fibrosis (CF). Pulmonary secretions of patients with CF display increased concentrations of high molecular weight components such as DNA and actin. Recombinant human deoxyribonuclease I (rhDNase) delivered by inhalation cleaves DNA filaments contained in respiratory secretions and thins them. However, rapid clearance of rhDNase from the lungs implies a daily administration and thereby a high therapy burden and a reduced patient compliance...
June 5, 2018: Clinical Science (1979-)
https://www.readbyqxmd.com/read/29868300/-n-acetylcysteine-protects-against-motor-optomotor-and-morphological-deficits-induced-by-6-ohda-in-zebrafish-larvae
#4
Radharani Benvenutti, Matheus Marcon, Carlos G Reis, Laura R Nery, Camila Miguel, Ana P Herrmann, Monica R M Vianna, Angelo Piato
Background: Parkinson's disease (PD) is the second most common neurodegenerative disorder. In addition to its highly debilitating motor symptoms, non-motor symptoms may precede their motor counterparts by many years, which may characterize a prodromal phase of PD. A potential pharmacological strategy is to introduce neuroprotective agents at an earlier stage in order to prevent further neuronal death. N -acetylcysteine (NAC) has been used against paracetamol overdose hepatotoxicity by restoring hepatic concentrations of glutathione (GSH), and as a mucolytic in chronic obstructive pulmonary disease by reducing disulfide bonds in mucoproteins...
2018: PeerJ
https://www.readbyqxmd.com/read/29849907/cigarette-smoke-induced-acquired-dysfunction-of-cystic-fibrosis-transmembrane-conductance-regulator-in-the-pathogenesis-of-chronic-obstructive-pulmonary-disease
#5
REVIEW
Juan Shi, Hui Li, Chao Yuan, Meihui Luo, Jun Wei, Xiaoming Liu
Chronic obstructive pulmonary disease (COPD) is a disease state characterized by airflow limitation that is not fully reversible. Cigarette smoke and oxidative stress are main etiological risks in COPD. Interestingly, recent studies suggest a considerable overlap between chronic bronchitis (CB) phenotypic COPD and cystic fibrosis (CF), a common fatal hereditary lung disease caused by genetic mutations of the cystic fibrosis transmembrane conductance regulator (CFTR) gene. Phenotypically, CF and COPD are associated with an impaired mucociliary clearance and mucus hypersecretion, although they are two distinct entities of unrelated origin...
2018: Oxidative Medicine and Cellular Longevity
https://www.readbyqxmd.com/read/29849877/biological-activities-and-potential-oral-applications-of-n-acetylcysteine-progress-and-prospects
#6
REVIEW
Yanping Pei, Huan Liu, Yi Yang, Yanwei Yang, Yang Jiao, Franklin R Tay, Jihua Chen
N-Acetylcysteine (NAC), a cysteine prodrug and glutathione (GSH) precursor, has been used for several decades in clinical therapeutic practices as a mucolytic agent and for the treatment of disorders associated with GSH deficiency. Other therapeutic activities of NAC include inhibition of inflammation/NF- κ B signaling and expression of proinflammatory cytokines. N-Acetylcysteine is also a nonantibiotic compound possessing antimicrobial property and exerts anticarcinogenic and antimutagenic effects against certain types of cancer...
2018: Oxidative Medicine and Cellular Longevity
https://www.readbyqxmd.com/read/29794203/clinical-pharmacology-of-oral-maintenance-therapies-for-obstructive-lung-diseases
#7
Roy A Pleasants
Although inhaled therapies are typically preferred for the maintenance treatment of obstructive lung diseases, oral drug therapies can also play valuable roles. The most commonly used oral agents are phosphodiesterase inhibitors, theophylline, macrolides, leukotriene modifiers, and mucoactive agents. Advantages of these oral agents include the unique pharmacologic mechanisms of action, the avoidance of the challenges of proper inhalational lung administration, and, in most instances, relative drug cost. For many of these agents, anti-inflammatory or immunomodulatory effects are the predominant pharmacologic mechanism that each provides clinical benefit, with the exception of guaifenesin...
June 2018: Respiratory Care
https://www.readbyqxmd.com/read/29742938/n-acetylcysteine-as-an-antioxidant-and-disulphide-breaking-agent-the-reasons-why
#8
Giancarlo Aldini, Alessandra Altomare, Giovanna Baron, Giulio Vistoli, Marina Carini, Luisa Borsani, Francesco Sergio
The main molecular mechanisms explaining the well-established antioxidant and reducing activity of N-acetylcysteine (NAC), the N-acetyl derivative of the natural amino acid l-cysteine, are summarised and critically reviewed. The antioxidant effect is due to the ability of NAC to act as a reduced glutathione (GSH) precursor; GSH is a well-known direct antioxidant and a substrate of several antioxidant enzymes. Moreover, in some conditions where a significant depletion of endogenous Cys and GSH occurs, NAC can act as a direct antioxidant for some oxidant species such as NO2 and HOX...
May 9, 2018: Free Radical Research
https://www.readbyqxmd.com/read/29733972/application-of-an-inline-dry-powder-inhaler-to-deliver-high-dose-pharmaceutical-aerosols-during-low-flow-nasal-cannula-therapy
#9
Dale Farkas, Michael Hindle, P Worth Longest
Inline dry powder inhalers (DPIs) offer a potentially effective option to deliver high dose inhaled medications simultaneously with mechanical ventilation. The objective of this study was to develop an inline DPI that is actuated using a low volume of air (LV-DPI) to efficiently deliver pharmaceutical aerosols during low flow nasal cannula (LFNC) therapy. A characteristic feature of the new inline LV-DPIs was the use of hollow capillary tubes that both pierced the capsule and provided a pathway for inlet air and exiting aerosol...
May 5, 2018: International Journal of Pharmaceutics
https://www.readbyqxmd.com/read/29683370/nutritional-supplement-bao-khi-khang-as-an-adjuvant-therapy-in-acute-exacerbations-of-chronic-obstructive-pulmonary-disease
#10
Ba X Hoang, Bo Han, Hoang X Nguyen, Khanh T Dang
To investigate the effectiveness of nutritional supplement Bao Khi Khang as an adjuvant therapy in acute exacerbations of chronic obstructive pulmonary disease (COPD) compared to conventional therapy alone. This was a prospective, randomized, open-label controlled trial in 60 patients presenting with acute exacerbation of COPD. Patients were randomized into two groups, the control and the experimental groups. The control group was treated with the standard therapeutic protocol (Antimicrobial+Corticosteroids+Bronchodilator+Mucolytic drugs)...
April 23, 2018: Journal of Medicinal Food
https://www.readbyqxmd.com/read/29669663/nonprescription-medications-for-respiratory-symptoms-facts-and-marketing-fictions
#11
Miles Weinberger, Leslie Hendeles
BACKGROUND: There are many nonprescription (over-the-counter [OTC]) medications available on pharmacy shelves marketed for relief of respiratory symptoms. The number of such medications has been increasing. OBJECTIVE: This review provides an evidence-based examination of OTC products used for respiratory symptoms. METHODS: Antihistamines, decongestants, mucolytics, antitussives, and intranasal steroids were selected as the most common OTC medications taken by adults and children for various respiratory symptoms...
May 1, 2018: Allergy and Asthma Proceedings:
https://www.readbyqxmd.com/read/29566906/action-and-function-of-akkermansia-muciniphila-in-microbiome-ecology-health-and-disease
#12
REVIEW
Noora Ottman, Sharon Y Geerlings, Steven Aalvink, Willem M de Vos, Clara Belzer
The discovery of Akkermansia muciniphila has opened new avenues for the use of this abundant intestinal symbiont in next generation therapeutic products, as well as targeting microbiota dynamics. A. muciniphila is known to colonize the mucosal layer of the human intestine where it triggers both host metabolic and immune responses. A. muciniphila is particularly effective in increasing mucus thickness and increasing gut barrier function. As a result host metabolic markers ameliorate. The mechanism of host regulation is thought to involve the outer membrane composition, including the type IV pili of A...
December 2017: Best Practice & Research. Clinical Gastroenterology
https://www.readbyqxmd.com/read/29540496/exacerbations-of-copd
#13
Christian Viniol, Claus F Vogelmeier
Chronic obstructive pulmonary disease (COPD) is the third leading cause of death worldwide. While COPD is a mainly chronic disease, a substantial number of patients suffer from exacerbations. Severe exacerbations are related to a significantly worse survival outcome. This review summarises the current knowledge on the different aspects of COPD exacerbations. The impact of risk factors and triggers such as smoking, severe airflow limitation, bronchiectasis, bacterial and viral infections and comorbidities is discussed...
March 31, 2018: European Respiratory Review: An Official Journal of the European Respiratory Society
https://www.readbyqxmd.com/read/29527305/influenza-and-influenza-like-syndromes-the-subjects-beliefs-the-attitude-to-prevention-and-treatment-and-the-impact-in-italian-general-population
#14
Roberto W Dal Negro, Alessandro Zanasi, Paola Turco, Massimiliano Povero
Background: Influenza and influenza-like syndromes (I-LSs) are infectious diseases occurring on a seasonal basis which can lead to upper (URTI) and lower respiratory tract illness (LRTI) of different severity. The approach to these disorders is unfortunately not uniform. Aim of the study was to investigate real-life people beliefs, the attitude to their prevention and treatment, and their impact in general population. Methods: A cross-sectional survey via Computer Assisted Telephone Interview (CATI) was carried out using a specific questionnaire investigating influenza episode rates, subjects behavior in case of influenza and I-LSs, and prescribed therapy...
2018: Multidisciplinary Respiratory Medicine
https://www.readbyqxmd.com/read/29521616/n-acetyl-cysteine-increases-the-replication-of-chlamydia-pneumoniae-and-prolongs-the-clearance-of-the-pathogen-from-mice
#15
Dávid Kókai, Tímea Mosolygó, Dezső P Virók, Valéria Endrész, Katalin Burián
PURPOSE: Within the community, 10 % of acquired pneumonia is caused by Chlamydia pneumoniae. N-acetyl-cysteine (NAC) is one of the most commonly used mucolytics in respiratory diseases, but its effect on C. pneumoniae infection has not yet been investigated. In this study, our aim was to investigate whether NAC influences the replication of C. pneumoniae. After determining that NAC does have an effect on C. pneumoniae replication, the effect of an alternative drug called Ambroxol (Ax) was investigated...
March 9, 2018: Journal of Medical Microbiology
https://www.readbyqxmd.com/read/29486489/effect-of-on-demand-vs-routine-nebulization-of-acetylcysteine-with-salbutamol-on-ventilator-free-days-in-intensive-care-unit-patients-receiving-invasive-ventilation-a-randomized-clinical-trial
#16
RANDOMIZED CONTROLLED TRIAL
David M P van Meenen, Sophia M van der Hoeven, Jan M Binnekade, Corianne A J M de Borgie, Maruschka P Merkus, Frank H Bosch, Henrik Endeman, Jasper J Haringman, Nardo J M van der Meer, Hazra S Moeniralam, Mathilde Slabbekoorn, Marcella C A Muller, Willemke Stilma, Bart van Silfhout, Ary Serpa Neto, Hans F M Ter Haar, Jan Van Vliet, Jan Willem Wijnhoven, Janneke Horn, Nicole P Juffermans, Paolo Pelosi, Marcelo Gama de Abreu, Marcus J Schultz, Frederique Paulus
Importance: It remains uncertain whether nebulization of mucolytics with bronchodilators should be applied for clinical indication or preventively in intensive care unit (ICU) patients receiving invasive ventilation. Objective: To determine if a strategy that uses nebulization for clinical indication (on-demand) is noninferior to one that uses preventive (routine) nebulization. Design, Setting, and Participants: Randomized clinical trial enrolling adult patients expected to need invasive ventilation for more than 24 hours at 7 ICUs in the Netherlands...
March 13, 2018: JAMA: the Journal of the American Medical Association
https://www.readbyqxmd.com/read/29460206/deciphering-the-trophic-interaction-between-akkermansia-muciniphila-and-the-butyrogenic-gut-commensal-anaerostipes-caccae-using-a-metatranscriptomic-approach
#17
Loo Wee Chia, Bastian V H Hornung, Steven Aalvink, Peter J Schaap, Willem M de Vos, Jan Knol, Clara Belzer
Host glycans are paramount in regulating the symbiotic relationship between humans and their gut bacteria. The constant flux of host-secreted mucin at the mucosal layer creates a steady niche for bacterial colonization. Mucin degradation by keystone species subsequently shapes the microbial community. This study investigated the transcriptional response during mucin-driven trophic interaction between the specialised mucin-degrader Akkermansia muciniphila and a butyrogenic gut commensal Anaerostipes caccae. A...
February 19, 2018: Antonie Van Leeuwenhoek
https://www.readbyqxmd.com/read/29455115/therapeutic-use-of-heparin-and-derivatives-beyond-anticoagulation-in-patients-with-bronchial-asthma-or-copd
#18
REVIEW
Janis K Shute, Ermanno Puxeddu, Luigino Calzetta
In this review, we identify potential targets for the therapeutic effects of heparin in asthma and chronic obstructive pulmonary disease (COPD), consider the safety and delivery modalities of this therapeutic approach. Specifically, we point to the anti-inflammatory, antioxidant and mucolytic effects of unfractionated heparin with potential to modify disease progression in COPD and asthma when administered via the inhaled route. Inhaled heparin may represent an effective add-on therapy in COPD and asthma patient groups, especially when taking into consideration the relative deficiency in endogenous heparin reported in asthma patients...
February 15, 2018: Current Opinion in Pharmacology
https://www.readbyqxmd.com/read/29441886/effects-and-mechanisms-of-ambroxol-inhalation-mucosolvan-%C3%A2-in-the-treatment-of-neonatal-pneumonia
#19
Zuqin Yang, Xiuman Xiao, Yumei Huang, Xiaoxiao He, Qinqin Lu, Shangqin Chen, Zhenlang Lin
Neonatal pneumonia is the leading cause of mortality in children aged <5 years. Ambroxol (Mucosolvan®) is a mucolytic and secretolytic drug and belongs to the group of expectorants with anti-oxidative and anti-inflammatory effects. The purpose of the present study was to observe the effects and mechanisms of Mucosolvan ® inhalation on neonatal pneumonia. Between January 2014 and October 2015, a total of 80 newborns with pneumonia were randomly divided into control and observation groups. While the patients in the control group were treated with conventional treatment only, those patients in the observation group were treated with Mucosolvan® in addition to the conventional treatment...
October 1, 2017: Die Pharmazie
https://www.readbyqxmd.com/read/29425465/excess-mucin-impairs-subglottic-epithelial-host-defense-in-mechanically-ventilated-patients
#20
Jason Powell, James Garnett, Michael W Mather, Faye A H Cooles, Andrew Nelson, Bernard Verdon, Jon Scott, Kasim Jiwa, Marie-Hélène Ruchaud-Sparagano, Stephen P Cummings, John D Perry, Stephen E Wright, Janet A Wilson, Jeffrey Pearson, Chris Ward, A John Simpson
RATIONALE: Aspiration of infective subglottic secretions causes ventilator-associated pneumonia (VAP) in mechanically ventilated patients. Mechanisms underlying subglottic colonization in critical illness have not been defined, limiting strategies for targeted prevention of VAP. OBJECTIVES: To characterize subglottic host defense dysfunction in mechanically ventilated patients in the intensive care unit (ICU). To determine whether subglottic mucin contributes to neutrophil phagocytic impairment and bacterial growth...
February 9, 2018: American Journal of Respiratory and Critical Care Medicine
keyword
keyword
102954
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"