keyword
MENU ▼
Read by QxMD icon Read
search

surfactant administration

keyword
https://www.readbyqxmd.com/read/29320485/non-invasive-ventilation-and-surfactant-treatment-as-primary-mode-of-respiratory-support-in-surfactant-deficient-newborn-piglets
#1
Carmen Rey-Santano, Victoria E Mielgo, Miguel Angel Gomez-Solaetxe, Francesca Ricci, Federico Bianco, Fabrizio Salomone, Begoña Loureiro, Jon López de Heredia Y Goya
BACKGROUND: Nasal continuous positive airway pressure (NCPAP) and nasal intermittent positive pressure ventilation (NIPPV), forms of non-invasive ventilation (NIV) for respiratory support, are increasingly being chosen as the initial treatment for neonates with surfactant (SF) deficiency. Our objective was to compare NCPAP with NIPPV with or without SF administration as a primary mode of ventilation. METHODS: Twenty-four newborn piglets with SF-deficient lung injury produced by repetitive bronchoalveolar lavages were randomly assigned to NCPAP or NIPPV, with or without SF administration (InSurE method)...
January 10, 2018: Pediatric Research
https://www.readbyqxmd.com/read/29315806/five-country-manikin-study-found-that-neonatologists-preferred-using-the-lisacath-rather-than-the-angiocath-for-less-invasive-surfactant-administration
#2
Laura Fabbri, Katrin Klebermass-Schrehof, Marta Aguar, Catherine Harrison, Ewa Gulczyńska, Debora Santoro, Marco Di Castri, Vincent Rigo
AIM: Less invasive surfactant administration (LISA) has been shown to decrease the risk of death and bronchopulmonary dysplasia in preterm neonates. The LISAcath is the first catheter to be specifically developed for LISA and we compared the clinical impressions of neonatologists using the LISAcath and the commonly-used Angiocath in a simulated setting. METHODS: This was a multinational, multicentre study, conducted in October 2016, which involved 39 neonatologists who were recruited by employees of the sponsor from large, well-recognised neonatal intensive care units across Europe...
January 5, 2018: Acta Paediatrica
https://www.readbyqxmd.com/read/29313261/enhancement-of-in-vivo-efficacy-and-oral-bioavailability-of-aripiprazole-with-solid-lipid-nanoparticles
#3
Silki, Vivek Ranjan Sinha
Aripiprazole (ARP), a second-generation or atypical antipsychotic, is poorly soluble and undergoes extensive hepatic metabolism and P-glycoprotein efflux which lead to reduced in vivo efficacy and increased dose-related side effects. To enhance in vivo efficacy and oral bioavailability of aripiprazole, aripiprazole-loaded solid lipid nanoparticles (SLNs) were developed using tristearin as solid lipid. Tween 80 and sodium taurocholate were used as surfactants to prepare SLNs using microemulsification method...
January 8, 2018: AAPS PharmSciTech
https://www.readbyqxmd.com/read/29313026/transcutaneous-pollinosis-immunotherapy-using-a-solid-in-oil-nanodispersion-system-carrying-t-cell-epitope-peptide-and-r848
#4
Momoko Kitaoka, Ayaka Naritomi, Yoshinori Kawabe, Masamichi Kamihira, Noriho Kamiya, Masahiro Goto
Antigen-specific immunotherapy is the only curative approach for the treatment of allergic diseases such as Japanese cedar pollinosis. Immunotherapy using a T cell epitope vaccine in combination with the adjuvant R848 is of particular interest as a safe and effective approach to treat allergic diseases. Herein, we propose a simple and easy to handle vaccine administration method using the original solid-in-oil (S/O) nanodispersion system that permeates through the skin. The S/O nanodispersion system is composed of nanoparticles of hydrophilic molecules surrounded with hydrophobic surfactants that are dispersed in an oil vehicle...
March 2017: Bioengineering & Translational Medicine
https://www.readbyqxmd.com/read/29311495/fluorescent-imaging-analysis-for-distribution-of-fluorescent-dye-labeled-or-encapsulated-liposome-in-monocrotaline-induced-pulmonary-hypertension-model-rat
#5
Yo Muraki, Midori Yamasaki, Hirohisa Takeuchi, Kimio Tohyama, Noriyasu Sano, Takanori Matsuo
Pulmonary hypertension (PH) is a life-threatening lung disease. Despite the availability of several approved drugs, the development of a new treatment method is needed because of poor prognosis. Tissue selective drug delivery systems can avoid the adverse effects of current therapy and enhance efficacy. We evaluated the possibility of delivering drugs to the lungs of a PH rat model using fluorescence dye-labeled nanosized liposomes. To evaluate the tissue distribution following systemic exposure, fluorescent dye-labeled, 40-180 nm liposomes with and without polyethylene glycol (PEG) were intravenously administered to a monocrotaline-induced PH (MCT) rat model and tissue fluorescence was measured...
January 6, 2018: Chemical & Pharmaceutical Bulletin
https://www.readbyqxmd.com/read/29290827/local-intratracheal-delivery-of-perfluorocarbon-nanoparticles-to-lung-cancer-demonstrated-with-magnetic-resonance-multimodal-imaging
#6
Lina Wu, Xiaofei Wen, Xiance Wang, Chunan Wang, Xilin Sun, Kai Wang, Huiying Zhang, Todd Williams, Allen J Stacy, Junjie Chen, Anne H Schmieder, Gregory M Lanza, Baozhong Shen
Eighty percent of lung cancers originate as subtle premalignant changes in the airway mucosal epithelial layer of bronchi and alveoli, which evolve and penetrate deeper into the parenchyma. Liquid-ventilation, with perfluorocarbons (PFC) was first demonstrated in rodents in 1966 then subsequently applied as lipid-encapsulated PFC emulsions to improve pulmonary function in neonatal infants suffering with respiratory distress syndrome in 1996. Subsequently, PFC nanoparticles (NP) were extensively studied as intravenous (IV) vascular-constrained nanotechnologies for diagnostic imaging and targeted drug delivery applications...
2018: Theranostics
https://www.readbyqxmd.com/read/29289823/toltrazuril-mixed-nanomicelle-delivery-system-based-on-sodium-deoxycholate-brij-c20-polyethylene-ether-triton-x100-characterization-solubility-and-bioavailability-study
#7
Li Zhang, Dandan Ren, Jianyu Zhou, Guangneng Peng, Gang Shu, Zhixiang Yuan, Fei Shi, Ling Zhao, Lizi Yin, Guoqing Fan, Chang Liu, Hualin Fu
Toltrazuril (Tol) is a broad-spectrum anticoccidiosis drug that is widely used in the prevention and treatment of coccidiosis infection in poultry and mammals. However, the drug has poor aqueous solubility (25 °C, 0.41 μg/mL), and its dose escalation for systemic administration remains challenging. We engineered a Tol mixed nanomicelle (TMNM) delivery system based on sodium deoxycholate-Brij C20 polyethylene ether-triton x100 (NaDC-Brij58-Tx100) as surfactants by film hydration method. The physical properties of TMNM were characterized, and the pharmacokinetic parameters of Tol and TMNM were compared...
December 16, 2017: Colloids and Surfaces. B, Biointerfaces
https://www.readbyqxmd.com/read/29289490/positive-end-expiratory-pressure-during-resuscitation-at-birth-in-very-low-birth-weight-infants-a-randomized-controlled-pilot-trial
#8
Ratchada Kitsommart, Kittaya Nakornchai, Buranee Yangthara, Ratchada Jiraprasertwong, Bosco Paes
BACKGROUND: There is limited evidence of the effect of positive end-expiratory pressure (PEEP) during resuscitation soon after birth. Premature neonates may experience respiratory distress from surfactant insufficiency and providing PEEP after the very first breath, may improve outcomes following appropriate resuscitation. The objective of this study was to evaluate the short term respiratory outcomes after positive pressure ventilation (PPV) with PEEP in preterm infants at birth. METHODS: A prospective randomized-controlled, pilot trial was conducted...
December 9, 2017: Pediatrics and Neonatology
https://www.readbyqxmd.com/read/29282263/feasibility-of-2-d-ultrasound-shear-wave-elastography-of-fetal-lungs-in-case-of-threatened-preterm-labour-a-study-protocol
#9
Nicolas Mottet, Sébastien Aubry, Chrystelle Vidal, Guillaume Boiteux, Jean-Patrick Metz, Didier Riethmuller, Lionel Pazart, Rajeev Ramanah
INTRODUCTION: 2-D ultrasound shear wave elastography (SWE) could be considered as a new noninvasive tool for monitoring fetal lung development based on evaluation of mechanical properties during pregnancy. Interesting results are available concerning the use of SWE on developing organs, especially on premature infants and animal models. The main objective in this study is to evaluate the feasibility of 2-D SWE in human fetal lungs between 24 and 34 weeks of gestation (WG). The secondary objective is to modellise fetal lung-to-liver elastography ratio (LLE ratio) and to assess variations between normal lung and lung surfactant-enriched after a corticosteroids course indicated for a threatened preterm labour (TPL)...
December 26, 2017: BMJ Open
https://www.readbyqxmd.com/read/29246209/airway-administration-of-corticosteroids-for-prevention-of-bronchopulmonary-dysplasia-in-premature-infants-a-meta-analysis-with-trial-sequential-analysis
#10
Zhi-Qun Zhang, Ying Zhong, Xian-Mei Huang, Li-Zhong Du
BACKGROUND: Uncertainly prevails with regard to the use of inhalation or instillation steroids to prevent bronchopulmonary dysplasia in preterm infants. The meta-analysis with sequential analysis was designed to evaluate the efficacy and safety of airway administration (inhalation or instillation) of corticosteroids for preventing bronchopulmonary dysplasia (BPD) in premature infants. METHODS: We searched MEDLINE, EMBASE, CINAHL, and Cochrane CENTRAL from their inceptions to February 2017...
December 15, 2017: BMC Pulmonary Medicine
https://www.readbyqxmd.com/read/29232418/nano-emulsions-as-vehicles-for-topical-delivery-of-forskolin
#11
Małgorzata Miastkowska, Elżbieta Sikora, Elwira Lasoń, Maria Jose Garcia-Celma, Elvira Escribano-Ferrer, Conxita Solans, Meritxell Llinas
Two O/W forskolin-loaded nano-emulsions (0.075% wt.) based on medium chain triglycerides (MCT) and stabilized by a nonionic surfactant (Polysorbate 80 or Polysorbate 40) were studied as forskolin delivery systems. The nano-emulsions were prepared by the PIC method. The mean droplet size of the nano-emulsions with Polysorbate 80 and Polysorbate 40 with oil/surfactant (O/S) ratios of 20/80 and 80% water concentration, measured by Dynamic Light Scattering (DLS), was of 118 nm and 111 nm, respectively. Stability of the formulations, as assessed by light backscattering for 24 h, showed that both nano-emulsions were stable at 25ºC...
December 13, 2017: Acta Biochimica Polonica
https://www.readbyqxmd.com/read/29229368/pharmacodynamic-evaluation-of-self-micro-emulsifying-formulation-of-standardized-extract-of-lagerstroemia-speciosa-for-antidiabetic-activity
#12
Vipin Kumar Agarwal, Gupta Amresh, Phool Chandra
BACKGROUND: Lagerstroemia speciosa (SEL) leaves are a popular folk medicine for diabetes treatment due to presence of corosolic acid. It has low water solubility resulting poor absorption after oral administration. Self micro-emulsified drug delivery system is the way by which we can improve the oral absorption of drug. OBJECTIVE: The objective of this study was to develop the self micro-emulsifying formulation of standardized extract of SEL leaves and evaluate its pharmacodynamic performance for antidiabetic activity...
December 8, 2017: Journal of Ayurveda and Integrative Medicine
https://www.readbyqxmd.com/read/29220857/surfactant-administration-through-laryngeal-mask-airway-a-randomized-controlled-study-in-rabbits
#13
Cristian A Bernardo, Gonzalo L Mariani, María de Los Ángeles Virasoro, Sebastián Burgos, María J Labanca, Pablo Otero
No abstract text is available yet for this article.
December 8, 2017: American Journal of Perinatology
https://www.readbyqxmd.com/read/29217176/a-strong-adjuvant-based-on-glycol-chitosan-coated-lipid-polymer-hybrid-nanoparticles-potentiates-mucosal-immune-responses-against-the-recombinant-chlamydia-trachomatis-fusion-antigen-cth522
#14
Fabrice Rose, Jeanette Erbo Wern, Francesca Gavins, Peter Andersen, Frank Follmann, Camilla Foged
Induction of mucosal immunity with vaccines is attractive for the immunological protection against pathogen entrance directly at the site of infection. An example is infection with Chlamydia trachomatis (Ct), which is the most common sexually transmitted infection in the world, and there is an unmet medical need for an effective vaccine. A vaccine against Ct should elicit protective humoral and cell-mediated immune (CMI) responses in the genital tract mucosa. We previously designed an antibody- and CMI-inducing adjuvant based on poly(dl-lactic-co-glycolic acid) (PLGA) nanoparticles modified with the cationic surfactant dimethyldioctadecylammonium bromide and the immunopotentiator trehalose-6,6'-dibehenate...
December 4, 2017: Journal of Controlled Release: Official Journal of the Controlled Release Society
https://www.readbyqxmd.com/read/29214385/sealing-effects-on-the-storage-stability-of-the-cyanide-antidotal-candidate-dimethyl-trisulfide
#15
Lóránd Kiss, Anna Duke, Kristof Kovacs, Tibor Barcza, Márton Kiss, Ilona Petrikovics, David E Thompson
BACKGROUND: Dimethyl trisulfide (DMTS) is a highly lipid-soluble cyanide (CN) antidote candidate molecule. In prior studies with various US FDA-approved co-solvents, surfactants, and their combinations, aqueous solutions containing 15% polysorbate 80 (Poly80) were found to effectively solubilize DMTS in formulations for intramuscular administration. However, DMTS formulated in 15% aqueous Poly80 solutions showed gradual losses over time when stored in vials with septum-based seals. OBJECTIVE: The present study tested whether storing DMTS formulations in hermetically sealed glass ampules could mitigate storage losses...
December 6, 2017: Drugs in R&D
https://www.readbyqxmd.com/read/29199240/improvement-of-the-solubility-and-intestinal-absorption-of-curcumin-by-n-acyl-taurates-and-elucidation-of-the-absorption-enhancing-mechanisms
#16
Xinpeng Li, Ami Kawamura, Yusuke Sato, Masaki Morishita, Kosuke Kusamori, Hidemasa Katsumi, Toshiyasu Sakane, Akira Yamamoto
In this study, the effects of N-acyl taurates (NATs) on the intestinal absorption of curcumin (CUR), a water-insoluble and poorly absorbed compound, were examined in rats. Sodium methyl lauroyl taurate (LMT) and sodium methyl cocoyl taurate (CMT) were the most effective in increasing the solubility and intestinal absorption of CUR. The intestinal membrane toxicity of the NATs was also evaluated by measuring the activity of lactate dehydrogenase (LDH), a toxicity marker. NATs did not increase the activity of LDH, suggesting that they may be safely administered orally...
2017: Biological & Pharmaceutical Bulletin
https://www.readbyqxmd.com/read/29196736/continuous-positive-airway-pressure-delivery-during-less-invasive-surfactant-administration-a-physiologic-study
#17
Gilles Jourdain, Marie De Tersant, Valentina Dell'Orto, Giorgio Conti, Daniele De Luca
OBJECTIVE: We sought to investigate the pressure delivery during less invasive surfactant administration, as we hypothesize that it might be reduced. STUDY DESIGN: Physiologic in vitro study in a ventilation lab, using different pressure generators, levels, and leaks in a model of neonatal airways/lung mimicking mechanical characteristics of respiratory distress syndrome. Pressure was measured at the lung and verified in vivo measuring pharyngeal pressure in 19 neonates under same conditions...
December 1, 2017: Journal of Perinatology: Official Journal of the California Perinatal Association
https://www.readbyqxmd.com/read/29193877/effects-of-probiotics-on-ghrelin-and-lungs-in-children-with-acute-lung-injury-a-double-blind-randomized-controlled-trial
#18
Yu Wang, Li Gao, Zhongwen Yang, Fengmin Chen, Yuhua Zhang
AIM: To assess the effects of probiotics on serum ghrelin levels and protection for lungs in children with acute lung injury (ALI). METHODS: This study was performed as a double-blind, randomized, and controlled trial in a pediatric intensive care unit (PICU). The eligible children with ALI were assigned to either probiotic treatment or an identical placebo for 10 days. Serum ghrelin, SP-A(surfactant protein-A), TNF-α, and IL-6 concentrations were assessed at baseline and at the end of trial...
November 29, 2017: Pediatric Pulmonology
https://www.readbyqxmd.com/read/29193276/review-shows-that-using-surfactant-a-number-of-times-or-as-a-vehicle-for-budesonide-may-reduce-the-risk-of-bronchopulmonary-dysplasia
#19
REVIEW
J M Hascoët, J C Picaud, I Ligi, T Blanc, P Daoud, V Zupan, F Moreau, I Guilhoto, M Rouabah, C Alexandre, E Saliba, L Storme, J Patkai, M Pomedio, I Hamon
AIM: Bronchopulmonary dysplasia (BPD) remains the most common respiratory morbidity in immature infants. This review describes the diagnosis of BPD has evolved and summarises the therapeutic approaches that have made it possible to limit the incidence of BPD. METHOD: We reviewed the literature from the first definition of BPD by Northway in 1967 to the surfactant treatment policies that are currently in use, drawing on more than 50 papers up to 2017. RESULTS: Our review showed that improvements in neonatal survival have been associated with an increased risk of severe BPD, significant levels of long-term morbidity and the increased use of healthcare resources...
November 28, 2017: Acta Paediatrica
https://www.readbyqxmd.com/read/29193065/stereological-assessment-of-the-blood-air-barrier-and-the-surfactant-system-after-mesenchymal-stem-cell-pretreatment-in-a-porcine-non-heart-beating-donor-model-for-lung-transplantation
#20
Anke Schnapper, Astrid Christmann, Lars Knudsen, Parwis Rahmanian, Yeong-Hoon Choi, Mohamed Zeriouh, Samira Karavidic, Klaus Neef, Anja Sterner-Kock, Maria Guschlbauer, Florian Hofmaier, Alexandra C Maul, Thorsten Wittwer, Thorsten Wahlers, Christian Mühlfeld, Matthias Ochs
More frequent utilization of non-heart-beating donor (NHBD) organs for lung transplantation has the potential to relieve the shortage of donor organs. In particular with respect to uncontrolled NHBD, concerns exist regarding the risk of ischaemia/reperfusion (IR) injury-related graft damage or dysfunction. Due to their immunomodulating and tissue-remodelling properties, bone-marrow-derived mesenchymal stem cells (MSCs) have been suspected of playing a beneficial role regarding short- and long-term survival and function of the allograft...
November 28, 2017: Journal of Anatomy
keyword
keyword
41204
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"