Results 31 to 40 of about 647,511 (278)

Study of Foaming Properties and Effect of the Isomeric Distribution of Some Anionic Surfactants [PDF]

, 2008
Using different reaction conditions of photosulfochlorination of n-dodecane, two samples of anionic surfactants of sulfonate type are obtained. Their micellar behavior has been already reported and the relationship between their isomeric distribution and
Azira, Hakima, Jean Paul Canselier, Amel Tazerouti, Canselier, Jean-Paul, Hakima Azira, Tazerouti, Amel   +5 more
core   +1 more source

Procedural success and safety of a standardized less invasive surfactant administration protocol using fentanyl premedication and video laryngoscopy in preterm infants <32 weeks’ gestation

Frontiers in Pediatrics
BackgroundLess Invasive Surfactant Administration (LISA) has been established for treating respiratory distress syndrome (RDS) in preterm infants, but the impact of pharmacological analgesia or video laryngoscopy on procedural success and safety remains ...
Mircea-Horia Popa-Todirenchi, Benedikt Bubl, Fabian Keller, Marta Busso, Sophie Jaisli, Lisa Marie Bünte, Marc-Alexander Oestreich, Marc-Alexander Oestreich, André Kidszun   +8 more
doaj   +1 more source

Budesonide/formoterol enhances the expression of pro Surfactant Protein-B in lungs of COPD patients. [PDF]

PLoS ONE, 2013
Pulmonary surfactants are essential components of lung homeostasis. In chronic obstructive pulmonary disease (COPD), surfactant expression decreases in lungs whereas, there is a paradoxical increase in protein expression in plasma.
Soo Jung Um, Stephen Lam, Harvey Coxson, Shu Fan Paul Man, Don D Sin   +4 more
doaj   +1 more source

YAP regulates alveolar epithelial cell differentiation and AGER via NFIB/KLF5/NKX2-1

iScience, 2021
Summary: Ventilation is dependent upon pulmonary alveoli lined by two major epithelial cell types, alveolar type-1 (AT1) and 2 (AT2) cells. AT1 cells mediate gas exchange while AT2 cells synthesize and secrete pulmonary surfactants and serve as ...
Jason J. Gokey, John Snowball, Anusha Sridharan, Parvathi Sudha, Joseph A. Kitzmiller, Yan Xu, Jeffrey A. Whitsett   +6 more
doaj   +1 more source

Unraveling the enigma: The emerging significance of pulmonary surfactant proteins in predicting, diagnosing, and managing COVID‐19

Immunity, Inflammation and Disease
Background Severe cases of COVID‐19 often lead to the development of acute respiratory syndrome, a critical condition believed to be caused by the harmful effects of SARS‐CoV‐2 on type II alveolar cells.
Mohammad Navid Bastani, Shahram Jalilian
doaj   +1 more source

COVID-19 and Toll-Like Receptor 4 (TLR4): SARS-CoV-2 May Bind and Activate TLR4 to Increase ACE2 Expression, Facilitating Entry and Causing Hyperinflammation

Mediators of Inflammation, 2021
Causes of mortality from COVID-19 include respiratory failure, heart failure, and sepsis/multiorgan failure. TLR4 is an innate immune receptor on the cell surface that recognizes pathogen-associated molecular patterns (PAMPs) including viral proteins and
Mohamed M. Aboudounya, Richard J. Heads
doaj   +1 more source

Mechanoactive Biomaterials for Cell–Matrix Mechanotransduction

Advanced Materials, EarlyView.
The graphical abstract shows how individual triggers (force, light, or temperature) and combined optothermal or receptor‐targeted actuation induce material responses at the tissue, cellular, and receptor scales. Their spatial (global or focused) and temporal (continuous or cyclic) modulation determines the resulting mechanical output.
Yi‐Tung Lu, Alison E. John, Marc A. Fernández‐Yagüe   +2 more
wiley   +1 more source

Effect of exogenous surfactant on Paediatric Bronchoalveolar lavage derived macrophages’ cytokine secretion

BMC Pulmonary Medicine, 2019
Background Bronchoalveolar lavage is a useful bronchoscopy technique. However, studies in “normal” children populations are few. Furthermore, the anti-inflammatory effects of exogenous pulmonary surfactants on the bronchoalveolar cellular components are ...
Lyné van Rensburg, Johann M. van Zyl, Johan Smith, Pierre Goussard   +3 more
doaj   +1 more source

Bioinspired Adaptive Artificial Cilia With Tunable Sensitivity and Dynamic Range for Airflow Monitoring in the Central Airway

Advanced Materials Technologies, EarlyView.
A magnetically reconfigurable airflow sensor integrated with an airway stent enables tunable sensitivity and dynamic sensing range. Airflow‐induced cantilever deformation generates resistance changes, while an external magnetic field modulates sensor stiffness, enhancing sensitivity at low airflow velocities and extending the sensing range at higher ...
Darren Wang, Ruijian Ge, Shuda Dong, Zhongming Lyu, Yusheng Wang, Nicholas Strymish, Hanwen Fan, Fabien Maldonado, Caitlin T. Demarest, Yuxiao Zhou, Xiaoguang Dong   +10 more
wiley   +1 more source

A case of autoimmune pulmonary alveolar proteinosis with severe respiratory failure treated with segmental lung lavage and oral statin therapy

Respiratory Medicine Case Reports, 2022
Pulmonary alveolar proteinosis (PAP) is a diffuse lung disease characterized by the accumulation of alveolar surfactants due to dysfunction of granulocyte-macrophage colony-stimulating factor-dependent cholesterol clearance.
Tomotsugu Takano, Keisuke Takeda, Satoshi Nakamura, Genta Akiyama, Nobuhisa Ando, Masashi Komori   +5 more
doaj   +1 more source