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https://www.readbyqxmd.com/read/28420285/dry-powders-for-the-inhalation-of-ciprofloxacin-or-levofloxacin-combined-with-a-mucolytic-agent-for-cystic-fibrosis-patients
#1
Yagmur Akdag Cayli, Selma Sahin, Francesca Buttini, Anna Giulia Balducci, Serena Montanari, Imran Vural, Levent Oner
OBJECTIVE: This study aimed to design and characterize an inhalable dry powder of ciprofloxacin or levofloxacin combined with the mucolytics acetylcysteine and dornase alfa for the management of pulmonary infections in patients with cystic fibrosis. METHODS: Ball milling, homogenization in isopropyl alcohol, and spray drying processes were used to prepare dry powders for inhalation. Physico-chemical characteristics of the dry powders were assessed via thermogravimetric analysis, differential scanning calorimetry (DSC), Fourier transform infrared spectroscopy (FT-IR), X-ray diffractometry, and scanning electron microscopy...
April 19, 2017: Drug Development and Industrial Pharmacy
https://www.readbyqxmd.com/read/28402103/patient-derived-airway-secretion-dissociation-technique-to-isolate-and-concentrate-immune-cells-using-closed-loop-inertial-microfluidics
#2
Hyunryul Ryu, Kyungyong Choi, Yanyan Qu, Taehong Kwon, Janet S Lee, Jongyoon Han
Assessment of airway secretion cells, both for research and clinical purposes, is a highly desired goal in patients with acute and chronic pulmonary diseases. However, lack of proper cell isolation and enrichment techniques hinder downstream evaluation and characterization of cells found in airway secretions. Here, we demonstrate a novel enrichment method to capture immune-related cells from clinical airway secretions using closed-loop separation of spiral inertial microfluidics (C-sep). By recirculating the output focusing stream back to the input reservoir and running continuously with a high flow processing rate, one can achieve optimal concentration, recovery and purity of airway immune cells from a large volume of diluent, which was not readily possible in the single-pass operation...
April 21, 2017: Analytical Chemistry
https://www.readbyqxmd.com/read/28393062/the-likelihood-of-preventing-respiratory-exacerbations-in-children-and-adolescents-with-either-chronic-suppurative-lung-disease-or-bronchiectasis
#3
REVIEW
Kerry-Ann F O'Grady, Keith Grimwood
Chronic suppurative lung disease (CSLD) and bronchiectasis in children and adolescents are important causes of respiratory morbidity and reduced quality of life (QoL), also leading to subsequent premature death during adulthood. Acute respiratory exacerbations in pediatric CSLD and bronchiectasis are important markers of disease control clinically, given that they impact upon QoL and increase health-care-associated costs and can adversely affect future lung functioning. Preventing exacerbations in this population is, therefore, likely to have significant individual, familial, societal, and health-sector benefits...
2017: Frontiers in Pediatrics
https://www.readbyqxmd.com/read/28377314/clarithromycin-and-n-acetylcysteine-co-spray-dried-powders-for-pulmonary-drug-delivery-a-focus-on-drug-solubility
#4
Michele Dario Manniello, Pasquale Del Gaudio, Rita P Aquino, Paola Russo
Cystic fibrosis (CF) lungs are usually susceptible to Pseudomonas aeruginosa colonization and this bacterium is resistant to immune system clearance and drug control. Particularly, the biofilm mode of growth protects several microorganisms from host defenses and antibacterial drugs, mainly due to a delayed penetration of the drug through the biofilm matrix. Biofilm, together with lung mucus viscosity and tenacity, reduces, therefore, the effectiveness of conventional antibiotic therapy in CF. The aim of this research was to design and develop a stable, portable, easy to use dry powder inhaler (DPI) for CF patients, able to release directly to the lung an association of macrolide antibiotics (clarithromycin) and a mucolytic agent (N-Acetyl-Cysteine)...
April 1, 2017: International Journal of Pharmaceutics
https://www.readbyqxmd.com/read/28371943/bioassay-guided-isolation-of-iridoids-and-phenylpropanoids-from-aerial-parts-of-lamium-album-and-their-anti-inflammatory-activity-in-human-neutrophils
#5
Monika E Czerwińska, Anita Świerczewska, Marta Woźniak, Anna K Kiss
In traditional medicine, flowers and aerial parts of Lamium album are assigned by their anti-inflammatory, antiseptic, and mucolytic activities, and are used in chronic bronchitis and pharyngitis as well as skin, vaginal, and cervical inflammation.The aim of the present study was to compare effects of ethanolic extracts prepared from flowers and aerial parts of L. album on selected functions of human neutrophils, which are involved in an inflammatory response. In order to identify the compounds engaged in the anti-inflammatory activity of extracts, the bioassay-guided isolation of compounds was performed based on the inhibition of cytokine secretion by stimulated neutrophils...
April 3, 2017: Planta Medica
https://www.readbyqxmd.com/read/28367412/a-review-on-various-uses-of-n-acetyl-cysteine
#6
REVIEW
Vida Mokhtari, Parvaneh Afsharian, Maryam Shahhoseini, Seyed Mehdi Kalantar, Ashraf Moini
N-acetyl cysteine (NAC), as a nutritional supplement, is a greatly applied antioxidant in vivo and in vitro. NAC is a precursor of L-cysteine that results in glutathione elevation biosynthesis. It acts directly as a scavenger of free radicals, especially oxygen radicals. NAC is a powerful antioxidant. It is also recommended as a potential treatment option for different disorders resulted from generation of free oxygen radicals. Additionally, it is a protected and endured mucolytic drug that mellows tenacious mucous discharges...
April 2017: Cell Journal
https://www.readbyqxmd.com/read/28356227/production-and-characterization-of-a-pegylated-derivative-of-recombinant-human-deoxyribonuclease-i-for-cystic-fibrosis-therapy
#7
Marie-Julie Guichard, Harshad P Patil, Salome Juliette Koussoroplis, Ruddy Wattiez, Teresinha Leal, Rita Vanbever
Recombinant human deoxyribonuclease I (rhDNase) is the mucolytic agent most widely used for the treatment of respiratory disease in cystic fibrosis. However, rhDNase is rapidly cleared from the lungs which implies a high dosing frequency and limited patient adherence. The aim of this study was to produce a long-acting PEGylated derivative of rhDNase presenting a preserved enzymatic activity. Site-specific PEGylation on the N-terminal (N-ter) leucine residue of rhDNase was achieved by reductive alkylation at acidic pH using linear 20kDa, linear 30kDa or two-arm 40kDa polyethylene glycol (PEG) propionaldehydes...
March 27, 2017: International Journal of Pharmaceutics
https://www.readbyqxmd.com/read/28188210/management-of-oral-secretions-in-neurological-disease
#8
REVIEW
Alexander J McGeachan, Christopher J Mcdermott
Sialorrhoea is a common and problematic symptom that arises from a range of neurological conditions associated with bulbar or facial muscle dysfunction. Drooling can significantly affect quality of life due to both physical complications such as oral chapping, and psychological complications such as embarrassment and social isolation. Thicker, tenacious oral and pharyngeal secretions may result from the drying management approach to sialorrhoea. The management of sialorrhoea in neurological diseases depends on the underlying pathology and severity of symptoms...
April 2017: Practical Neurology
https://www.readbyqxmd.com/read/28178715/infectious-causes-of-right-middle-lobe-syndrome
#9
Aatif Rashid, Sowmya Nanjappa, John N Greene
Right middle lobe (RML) syndrome is defined as recurrent or chronic obstruction or infection of the middle lobe of the right lung. Nonobstructive causes of middle lobe syndrome include inflammatory processes and defects in the bronchial anatomy and collateral ventilation. We report on 2 case patients with RML syndrome, one due to infection with Mycobacterium avium complex followed by M asiaticum infection and the other due to allergic bronchopulmonary aspergillosis. A history of atopy, asthma, or chronic obstructive pulmonary disease has been reported in up to one-half of those with RML...
January 2017: Cancer Control: Journal of the Moffitt Cancer Center
https://www.readbyqxmd.com/read/28138305/physical-and-chemical-characteristics-of-mucin-secreted-by-pseudomyxoma-peritonei-pmp
#10
Krishna Pillai, Javed Akhter, Ahmed Mekkawy, Terence C Chua, David L Morris
Background: Pseudomyxoma peritonei (PMP) is a rare disease with excess intraperitoneal mucin secretion. Treatment involves laparotomy, cytoreduction and chemotherapy that is very invasive with patients often acquiring numerous compromises. Hence a mucolytic comprising of bromelain and N-acetyl cystein has been developed to solubilise mucin in situ for removal by catherization. Owing to differences in mucin appearance and hardness, dissolution varies. Therefore the current study investigates the inter-mucin physical and chemical characteristics, in order to reformulate an effective mucolytic for all mucin...
2017: International Journal of Medical Sciences
https://www.readbyqxmd.com/read/28122105/acetylcysteine-in-the-treatment-of-subacute-sinusitis-a-double-blind-placebo-controlled-clinical-trial
#11
Mehrzad Bahtouee, Gholamhosein Monavarsadegh, Mohammadjavad Ahmadipour, Mazyar Motieilangroodi, Niloofar Motamed, Jamshid Saberifard, Seyyedsajjad Eghbali, Hooman Adibi, Hesam Maneshi, Hasan Malekizadeh
Sinusitis is a common disease with harmful effects on the health and finances of patients and the economy of the community. It is easily treated in most of its acute stages but is associated with some management difficulties as it goes toward chronicity. Therefore, we tried to improve the treatment of subacute sinusitis by using acetylcysteine, which is a safe mucolytic and antioxidant agent. Thirty-nine adult patients with subacute sinusitis proved by computed tomography (CT) were enrolled in a double-blind, placebo-controlled trial...
January 2017: Ear, Nose, & Throat Journal
https://www.readbyqxmd.com/read/28118826/pharmacological-investigation-on-the-anti-oxidant-and-anti-inflammatory-activity-of-n-acetylcysteine-in-an-ex-vivo-model-of-copd-exacerbation
#12
Mario Cazzola, Luigino Calzetta, Francesco Facciolo, Paola Rogliani, Maria Gabriella Matera
BACKGROUND: Oxidative stress is recognized to be one of predisposing factor in the pathogenesis of COPD. The oxidant/antioxidant imbalance is significantly pronounced in patients with COPD exacerbation. N-acetylcysteine (NAC) seems to be able to reduce COPD exacerbations by modulating the oxidative stress in addition to its well-known mucolytic activity, but there are discordant findings on the actual anti-oxidant activity of NAC. METHODS: The anti-oxidant effect of NAC and its impact on the inflammatory response have been pharmacologically characterized on a human ex vivo model of COPD exacerbation induced by lipopolysaccharide (LPS)...
January 24, 2017: Respiratory Research
https://www.readbyqxmd.com/read/28024668/potential-risks-of-maternal-administration-of-mucophylline-on-the-pups-of-albino-rats-during-lactation
#13
Hamida Hamdi, Heba Ali
The present study was undertaken to evaluate the potential risks of the mucolytic and broncholytic drug, Theophylline derivatives (Mucophylline) maternally administered on the pups. The nursing rats orally administered from 1st postpartum day (PPD) to 21th PPD with two different doses 30.83mg/kg (low dose) and 66.61mg/kg (Human equivalent dose (HED)). On the 21th PPD, the postnatal developmental signs, skeletal malformation and the histopathology of neonatal liver, kidney and brain were examined. Our results showed that Mucophylline induced a significant reduction in the neonatal weight and length, delayed, weak and incomplete ossification, wavy ribs and the neonatal liver revealed histopathological changes, pyknotic hepatocytes, cytoplasmic vacuolization, dilated sinusoid and necrotic area...
March 2, 2017: Experimental and Toxicologic Pathology: Official Journal of the Gesellschaft Für Toxikologische Pathologie
https://www.readbyqxmd.com/read/28011677/n-acetylcysteine-in-preclinical-mouse-and-baboon-models-of-thrombotic-thrombocytopenic-purpura
#14
Claudia Tersteeg, Jan Roodt, Walter J Van Rensburg, Charlotte Dekimpe, Nele Vandeputte, Inge Pareyn, Aline Vandenbulcke, Barbara Plaimauer, Seb Lamprecht, Hans Deckmyn, José A Lopez, Simon F De Meyer, Karen Vanhoorelbeke
Thrombotic thrombocytopenic purpura (TTP) is a microangiopathic disorder diagnosed by thrombocytopenia and hemolytic anemia, associated with a deficiency in von Willebrand factor (VWF)-cleaving protease ADAMTS13. Current treatment is based on plasma infusion for congenital TTP, or plasma exchange, often in combination with immunosuppressive agents, for acquired TTP. These treatment methods are not always effective; therefore, new treatment methods are highly necessary. N-acetylcysteine (NAC), an FDA-approved anti-mucolytic agent, is a possible new treatment strategy for TTP, as it was demonstrated to reduce disulfide bonds in VWF, thereby decreasing VWF multimers size and hence their prothrombotic potential...
February 23, 2017: Blood
https://www.readbyqxmd.com/read/27992707/inappropriate-prescription-of-cough-remedies-among-children-hospitalised-with-respiratory-illness-over-the-period-2002-2015-in-kenya
#15
Michuki Maina, Samuel Akech, Paul Mwaniki, Susan Gachau, Morris Ogero, Thomas Julius, Phillip Ayieko, Grace Irimu, Mike English
OBJECTIVE: To examine trends in prescription of cough medicines over the period 2002-2015 in children aged 1 month to 12 years admitted to Kenyan hospitals with cough, difficulty breathing or diagnosed with a respiratory tract infection. METHODS: We reviewed hospitalisation records of children included in four studies providing cross-sectional prevalence estimates from government hospitals for six time periods between 2002 and 2015. Children with an atopic illness were excluded...
March 2017: Tropical Medicine & International Health: TM & IH
https://www.readbyqxmd.com/read/27957326/increased-rhinovirus-replication-in-nasal-mucosa-cells-in-allergic-subjects-is-associated-with-increased-icam-1-levels-and-endosomal-acidification-and-is-inhibited-by-l-carbocisteine
#16
Mutsuo Yamaya, Kazuhiro Nomura, Kazuya Arakawa, Hidekazu Nishimura, Nadine Lusamba Kalonji, Hiroshi Kubo, Ryoichi Nagatomi, Tetsuaki Kawase
Increased viral replication and cytokine production may be associated with the pathogenesis of asthma attacks in rhinovirus (RV) infections. However, the association between increased RV replication and enhanced expression of intercellular adhesion molecule-1 (ICAM-1), a receptor for a major RV group, in airway epithelial cells has remained unclear. Furthermore, the inhibitory effects of mucolytics, which have clinical benefits in asthmatic subjects, are uncertain. Human nasal epithelial (HNE) cells were infected with type 14 rhinovirus (RV14), a major RV group...
June 2016: Immunity, Inflammation and Disease
https://www.readbyqxmd.com/read/27881029/pemphigus-herpetiformis-type-drug-reaction-caused-by-erdosteine-containing-mucolytic-in-a-child
#17
Gulsen Akoglu, Sibel Orhun Yavuz
Drug-related pemphigus is very rare in children. Erdosteine is a thiol compound having mucoactive, antioxidant, anti-inflammatory, and antitussive effects and is reported to be safe for treatment of acute respiratory tract diseases in children. Herein, we report a 9-year-old boy presented with pemphigus herpetiformis associated with anti-desmoglein 1 antibodies due to erdosteine consumption.
November 23, 2016: Cutaneous and Ocular Toxicology
https://www.readbyqxmd.com/read/27793104/n-acetyl-cysteine-exhibits-potent-anti-mycobacterial-activity-in-addition-to-its-known-anti-oxidative-functions
#18
Eduardo P Amaral, Elisabete L Conceição, Diego L Costa, Michael S Rocha, Jamocyr M Marinho, Marcelo Cordeiro-Santos, Maria Regina D'Império-Lima, Theolis Barbosa, Alan Sher, Bruno B Andrade
BACKGROUND: Mycobacterium tuberculosis infection is thought to induce oxidative stress. N-acetyl-cysteine (NAC) is widely used in patients with chronic pulmonary diseases including tuberculosis due to its mucolytic and anti-oxidant activities. Here, we tested whether NAC exerts a direct antibiotic activity against mycobacteria. METHODS: Oxidative stress status in plasma was compared between pulmonary TB (PTB) patients and those with latent M. tuberculosis infection (LTBI) or healthy uninfected individuals...
October 28, 2016: BMC Microbiology
https://www.readbyqxmd.com/read/27787715/bifunctional-drugs-for-the-treatment-of-respiratory-diseases
#19
Clive Page, Mario Cazzola
Over the last decade, there has been a steady increase in the use of fixed dose combinations for the treatment of a range of diseases, including cancer, AIDS, tuberculosis and other infectious diseases. It is now evident that patients with asthma or chronic obstructive pulmonary disease (COPD) can also benefit from the use of fixed dose combinations, including combinations of a long-acting β2-agonist (LABA) and an inhaled corticosteroid (ICS), and combinations of LABAs and long-acting muscarinic receptor antagonists (LAMAs)...
October 28, 2016: Handbook of Experimental Pharmacology
https://www.readbyqxmd.com/read/27775548/il-33-regulates-the-iga-microbiota-axis-to-restrain-il-1%C3%AE-dependent-colitis-and-tumorigenesis
#20
Ankit Malik, Deepika Sharma, Qifan Zhu, Rajendra Karki, Clifford S Guy, Peter Vogel, Thirumala-Devi Kanneganti
Inflammatory bowel diseases (IBD) affect over 5 million individuals in the industrialized world, with an increasing incidence rate worldwide. IBD also predisposes affected individuals to development of colorectal cancer, which is a leading cause of cancer-related deaths in adults. Mutations in genes encoding molecules in the IL-33 signaling pathway are associated with colitis and colitis-associated cancer (CAC), but how IL-33 modulates gut homeostasis is unclear. Here, we have shown that Il33-deficient mice are highly susceptible to colitis and CAC...
December 1, 2016: Journal of Clinical Investigation
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