Results 71 to 80 of about 50,195 (270)

Evaluation of Genetic Polymorphisms of the Antioxidant Enzymes and Biomarkers of Oxidative Stress in Preterm Neonates With Respiratory Distress Syndrome Receiving External Surfactant

Biomarker Insights, 2022
Background: Preterm neonates, particularly extremely preterm, are susceptible to respiratory distress syndrome (RDS) due to surfactant deficiency. Single nucleotide polymorphisms (SNPs) in the antioxidant enzymes influence the balance between antioxidant
Kannan Sridharan, Mona Al Jufairi, Aamal AbdulGhani Mahdi Hejab, Abdulraoof Al Madhoob, Reem Al Marzooq, Safa Taha, Muna Jaber Mulla Aljishi, Ameera Abdulhadi, Eman Al Ansari, Masooma Abdulla Ali, Maryam Ali Ahmed Naser, Ola Al Segai, Kevin Dunne   +12 more
doaj   +1 more source

Xylem surfactants introduce a new element to the cohesion-tension theory [PDF]

, 2016
Vascular plants transport water under negative pressure without constantly creating gas bubbles that would disable their hydraulic systems. Attempts to replicate this feat in artificial systems almost invariably result in bubble formation, except under ...
Do, Aissa YT, Espino, Susana, Jansen, Steven, Michaud, Joseph M, Nima, Neda, Papahadjopoulos-Sternberg, Brigitte, Romo, David M, Schenk, H Jochen, Steppe, Kathy, Yang, Jinlong, Zuo, Yi Y   +10 more
core   +1 more source

Endogenous “Time Bomb” – Mislocalized Phospholipase A2 as a Critical Mediator of Ultra‐Rapid Mortality in Sepsis and Acute Lung Injury

Advanced Science, EarlyView.
Phospholipase A2 (PLA2), a dormant enzyme, becomes lethal when activated—collapsing lungs in minutes. Our dual therapy (DOPS + varespladib) boosts survival from 0% to >90% in sepsis/ALI. A breakthrough for acute lung injury treatment. ABSTRACT This study reveals that phospholipase A2 (PLA2), normally stable and nontoxic, can be activated specifically ...
Jianyu Wang, Zhongxing Xu, Lin Wang, Xin Sui, Yuan Luo, Xiuli Zhao, Jun Yang, Yongan Wang   +7 more
wiley   +1 more source

Tracheal suctioning improves gas exchange but not hemodynamics in asphyxiated lambs with meconium aspiration. [PDF]

, 2015
BackgroundCurrent neonatal resuscitation guidelines recommend tracheal suctioning of nonvigorous neonates born through meconium-stained amniotic fluid.MethodsWe evaluated the effect of tracheal suctioning at birth in 29 lambs with asphyxia induced by ...
Gugino, Sylvia F, Koenigsknecht, Carmon, Lakshminrusimha, Satyan, Mathew, Bobby, Nair, Jayasree, Nielsen, Lori, Rawat, Munmun, Swartz, Daniel D   +7 more
core  

Endogenous Ceramide 24:1 Constrains Th17‐Driven Neutrophilic Inflammation by Antagonizing EP2 Signaling

Advanced Science, EarlyView.
Cer24:1 levels are reduced in neutrophilic asthma and inversely correlate with disease severity and airway neutrophilia. Restoring Cer24:1 suppresses pathogenic Th17 differentiation by engaging EP2 on CD4+ T cells, thereby dampening the JAK2–STAT3–RORγt axis and reducing IL‐17 production.
Huan Liu, Abudureyimujiang Aili, Zheng Kuang, Liting Cao, Zemin Li, Ying Shang, Yingying Ge, Tingting Hu, Yongchang Sun, Wuli Zhao, Rong Jin, Chun Chang   +11 more
wiley   +1 more source

The role of surfactant protein D in the colonisation of the respiratory tract and onset of bacteraemia during pneumococcal pneumonia

Respiratory Research, 2005
We have shown previously that surfactant protein D (SP-D) binds and agglutinates Streptococcus pneumoniae in vitro. In this study, the role of SP-D in innate immunity against S.
Andrew PW, Hawgood S, Eggleton P, Clark H, Jounblat R, Kadioglu A   +5 more
doaj   +1 more source

Interaction of pulmonary surfactant-associated protein (SP-A) with surfactant lipids.

Indian journal of biochemistry & biophysics, 1993
A pulmonary surfactant-associated protein complex with components of 36, 32 and 28 kDa was isolated from human lung homogenates and reassembled with surfactant lipids prepared as small unilamellar liposomes. The role of divalent cations in the assembly of this recombinant lipoprotein complex was studied by monitoring the changes in turbidity, intrinsic
A, Walj, K, Dhall, R, Juneja, S, Majumdar, S N, Sanyal   +4 more
openaire   +1 more source

Cascade‐Responsive MXene@Cu‐MOF Heterostructure Integrates Antioxidant Activity, Infection Control, and Vascularization for Tracheal Repair

Advanced Science, EarlyView.
A cascade‐responsive MXene@Cu‐MOF/GelMA hydrogel is engineered as a “skeleton–backpack” platform for extensive tracheal repair. The MXene framework scavenges postoperative ROS and converts NIR light into mild hyperthermia, while the Cu‐MOF component provides pH/NIR‐responsive Cu2+ dosing for infection control, angiogenesis, and chondrogenesis.
Liang Guo, Yingran Shen, Jiaoyu Yi, Juanjuan Li, Ziming Wang, Erji Gao, Siqiang Zheng, Zhe‐Sheng Chen, Bo Tao   +8 more
wiley   +1 more source

Bifunctional Artificial Enzymes‐Loaded Microgels With LOX‐ and CAT‐Like Activities for Metabolic Reprogramming and Scarless Wound Repair

Advanced Science, EarlyView.
A bifunctional lactate oxidase‐like and catalase‐like artificial enzyme (Metazyme) is integrated into a rod‐shaped microgel (MetaRgel) to enable cascade lactate oxidation and oxygen regeneration. By reprogramming the wound metabolic microenvironment, MetaRgel alleviates excessive lactate accumulation, oxidative stress, hypoxia, and inflammation ...
Yongyuan Kang, Pai Peng, Liang Song, Qiaoxuan Wang, Zilong Zhong, Dongchao Qiu, Yunfan Liu, Kefei Zhao, Xiaofei Dong, Changyou Gao   +9 more
wiley   +1 more source

The Evolution of Cell Communication: The Road not Taken. [PDF]

, 2009
In the post-genomic era the complex problem of evolutionary biology can be tackled from the top-down, the bottom-up, or from the middle-out. Given the emergent and contingent nature of this process, we have chosen to take the latter approach, both as a ...
Rehan, VK, Torday, JS
core   +1 more source