Results 81 to 90 of about 401,690 (283)

Live imaging of airway epithelium reveals that mucociliary clearance modulates SARS-CoV-2 spread

Nature Communications
SARS-CoV-2 initiates infection in the conducting airways, where mucociliary clearance inhibits pathogen penetration. However, it is unclear how mucociliary clearance impacts SARS-CoV-2 spread after infection is established. To investigate viral spread at
Mark E. Becker, Laura Martin-Sancho, Lacy M. Simons, Michael D. McRaven, Sumit K. Chanda, Judd F. Hultquist, Thomas J. Hope   +6 more
doaj   +1 more source

Inflammation promotes stomach epithelial defense by stimulating the secretion of antimicrobial peptides in the mucus

Gut Microbes
The mucus serves as a protective barrier in the gastrointestinal tract against microbial attacks. While its role extends beyond merely being a physical barrier, the extent of its active bactericidal properties remains unclear, and the mechanisms ...
Megi Vllahu, Antonia Voli, Valerio Licursi, Claudia Zagami, Antonella D’Amore, Jan Traulsen, Sara Woelffling, Monika Schmid, Robbie Crickley, Richard Lisle, Alexander Link, Alessandra Tosco, Thomas F. Meyer, Francesco Boccellato   +13 more
doaj   +1 more source

Disrupting Helicobacter pylori Iron Homeostasis With Bismuth Nanodrug‐Mediated Nutritional Trap for Targeted Gastric Infection Therapy

Advanced Science, EarlyView.
A “nutritional trap” strategy centered on disrupting bacterial iron homeostasis is proposed. The synthesized Bi‐TP@FU (TBF) can target Helicobacter pylori, interfere with the bacterial iron uptake and utilization processes to disrupt its iron homeostasis, induce bacterial death, and meanwhile preserve the balance of the intestinal flora.
Tianye Fang, Jinzhe Tong, Feng Feng, Cong Liu, Chang Shu, Jiaying Zhu, Shibo Zhang, Shuyue Deng, Wanchao Zuo, Yuhan Song, Jun Yang, Yanmin Ju, Yingying Xing, Jianjun Dai   +13 more
wiley   +1 more source

Subversion of Atypical Mucin Traps by a Spore‐Coat Effector Blocks Cellular Immunity in Drosophila

Advanced Science, EarlyView.
While the entomopathogenic fungus Metarhizium robertsii can evade insect humoral immunity, its subversion of cellular defenses is still elusive. We identify Eac1 as a spore‐coat protein essential for infecting drosophilids by targeting atypical mucins (Sgf1 and Sgf2), which can entrap spores in a gel matrix and thereby facilitate hemocyte encapsulation.
Shiqin Li, Haimin Chen, Gangqi Fang, Dongxiang Wei, Hongyun Wu, Chen Chen, Song Hong, Chengshu Wang   +7 more
wiley   +1 more source

On muscarinic control of neurogenic mucus secretion in ferret trachea

, 1996
1. Muscarinic receptor subtypes mediating neurogenic mucus secretion in ferret trachea were characterized in vitro and in vivo using 35SO4 as a label for secreted mucus, and the muscarinic receptor antagonists telenzepine for the M1 receptor subtype ...
Rogers, DF, S I Ramnarine, D F Rogers, E B Haddad, A M Khawaja, Ramnarine, SI, Mak, JCW, Haddad, EB, Khawaja, AM, J C Mak   +9 more
core   +1 more source

Review of Gastrointestinal Capsule Robots: Materials, Actuation, Diagnostics, and Therapeutics

Advanced Science, EarlyView.
This review examines gastrointestinal capsule robots through a systems engineering lens, covering shell materials, actuation and localization strategies, diagnostic modalities, therapeutic interventions, and commercialization status. By mapping the complete technological chain from fabrication to clinical deployment, this work identifies critical gaps ...
Zengsheng Li, Zhongguo Ren, Yiliang Lin, Xianfeng Xia, Tianlong Li, Kai Fung Chan, Philip Wai Yan Chiu, Wei Peng Yong, Mengmeng Sun   +8 more
wiley   +1 more source

Polysaccharides and the colon mucus barrier: a review of biophysical interactions and functional impacts

npj Science of Food
Polysaccharides are structurally diverse biopolymers that interact intimately with the colonic mucus barrier, modulating its physicochemical properties and biological functions.
Kit-Leong Cheong, Eric Biney, Min Wang, Hai-Jing Zhong, Saiyi Zhong, Malairaj Sathuvan   +5 more
doaj   +1 more source

Neutrophil elastase promotes mucin secretion in airway epithelial cells through the MARCKS/ACK1/cortactin pathway

Central European Journal of Immunology
Introduction Excessive mucus secretion in airway epithelial cells is a hallmark of various airway inflammatory diseases. Neutrophil elastase (NE) is a recognized inducer of mucus secretion, yet the precise mechanisms underlying this process remain ...
Mingxin He, Qi Li, SHUYUAN OUYANG, Yan Liu, Juliy M. Perelman, Victor P. Kolosov, Xiangdong Zhou, Yanyan Li   +7 more
doaj   +1 more source

Effects of Sodium Fluoride on Water and Acid Secretion, Soluble Mucus and Adherent Mucus of the Rat Stomach

Canadian Journal of Gastroenterology, 2000
Chronic and acute ingestion of fluoride may lead to both structural and functional alterations of the gastric mucosa. The aim of this study was to investigate the effects of sodium fluoride on gastric secretion and mucosal barrier.
Kamel Gharzouli, Smain Amira, Seddik Khennouf, Akila Gharzouli   +3 more
doaj   +1 more source

Overcoming Transmission Barriers: A Dual‐Functional Adhesive Hydrogel for Direct Monkeypox Virus Neutralization and Wound Healing

Advanced Science, EarlyView.
MPXV infection leads to persistent viral replication and severe local inflammation, while existing treatments cannot simultaneously remove viruses and repair injured tissue. This study constructs Polymer@mPDA@Gel hydrogel via a two‐step hierarchical assembly method: mPDA anchors photothermal polymers to form antiviral photothermal subunits, which are ...
Ming Zhang, Jiaxin Tian, Xiaolong Zhu, Xiao Li, Xiangshu Qiu, Yuanyuan Li, Ben Zhong Tang, Ning Shi   +7 more
wiley   +1 more source