Results 141 to 150 of about 300,160 (284)

Mechanisms of Mitochondrial Toxicity and Cytotoxicity Caused by Pseudomonas aeruginosa Pyocyanin in Human Nasal Epithelial Cells

International Forum of Allergy &Rhinology, EarlyView.
ABSTRACT Background Pseudomonas aeruginosa is an opportunistic pathogen in cystic fibrosis‐related chronic rhinosinusitis (CF‐CRS) that produces phenazine metabolites pyocyanin and 1‐hydroxyphenazine (1‐HP), which may have detrimental effects on mitochondria, reactive oxygen species (ROS), Ca2+ signaling, and apoptosis.
Joel C. Thompson, April Park, Yobouet Ines Kouakou, Zoey A. Miller, Nabil F. Darwich, Nithin D. Adappa, James N. Palmer, Ryan M. Carey, Robert J. Lee   +8 more
wiley   +1 more source

NF-{kappa}B-dependent induction of microRNA miR-146, an inhibitor targeted to signaling proteins of innate immune responses [PDF]

, 2006
Activation of mammalian innate and acquired immune responses must be tightly regulated by elaborate mechanisms to control their onset and termination. MicroRNAs have been implicated as negative regulators controlling diverse biological processes at the ...
Baltimore, David, Boldin, Mark P., Chang, Kuang-Jung, Taganov, Konstantin D.   +3 more
core  

Heterodimers of Toll-like receptors (TLR) in the pathogenesis of systemic inflammation (Review article)

Acta Biomedica Scientifica
In recent decades, fundamental discoveries in biology and medicine have allowed for a new look at the main pathophysiological mechanisms of systemic inflammation formation in many pathological conditions, both infectious and non-infectious etiology.
I. R. Prokhorenko, N. I. Kosyakova, S. V. Grachev   +2 more
doaj   +1 more source

Polydatin alleviates mitochondrial damage and apoptosis of lung epithelial cells by inhibiting toll‐like receptor 4‐dependent macrophage activation in asthma

Animal Models and Experimental Medicine, EarlyView.
The alleviation of asthma by polydatin is dependent on the blockage of the toll‐like receptor 4 (TLR4)/P2X7R synergy in macrophages. The blockage of the TLR4/P2X7R synergy results in decreased release and secretion of interleukin‐1β (IL‐1β) and IL‐18. In epithelial cells, low IL‐1β and IL‐18 levels inhibit mitochondrial damage and apoptosis.
Guangxing Li, Ruobai Liu, Chang Xu, Jianing Yang, Yilan Song, Li Li, Jingzhi Jiang, Liangchang Li, Chongyang Wang, Guanghai Yan   +9 more
wiley   +1 more source

Effect of agar and biofilm culture of Francisella tularensis on TLR2 and TLR4 genes expression in blood and spleen cells of experimental animals

Acta Biomedica Scientifica
Biofilm as a form of existence of many bacteria that allows them to survive in unfavorable environmental conditions. Such pathogens include some strains of tularemia pathogen.
V. I. Dubrovina, A. B. Pyatidesyatnikova, O. V. Yuryeva, K. M. Korytov, T. P. Starovoitova, A. V. Mazepa, K. V. Naumova, S. V. Balakhonov   +7 more
doaj   +1 more source

Decoding the Pathophysiology of Autoimmune Diseases—Mechanism, Triggers, and Nanotherapeutics: A Review

Advanced NanoBiomed Research, EarlyView.
This review highlights how autoimmune diseases arise from intertwined immunological, genetic, and environmental factors, emphasizing gut microbiota dysbiosis as a pivotal driver. It outlines emerging nanotechnology‐based strategies—such as liposomes, hydrogels, and polymeric nanoparticles—that enhance targeted drug delivery, minimize systemic toxicity,
Md. Meraj Ansari, Yunhui Min, Eun‐Ju Ko, Doyoung Kwon, Rehan Khan, Young‐Ok Son   +5 more
wiley   +1 more source

Dietary Mannan‐Rich Fractions Attenuate Weaning Stress in Piglets via Modulating Gut Microbiota and TLR5/NF‐κB Signaling

Animal Research and One Health, EarlyView.
This study aimed to investigate the potential of a mannan‐rich fraction (MRF) as a dietary intervention to alleviate weaning stress in piglets. Our results revealed that MRF could alleviate weaning stress by modulating the gut microbiota and the TLR5/NF‐κB signaling pathway, offering a novel and sustainable alternative to antibiotic use in swine ...
Yutong Lu, Yiwei Sun, Kun Cai, Pingli He, Gang Lin, Zengkai Qi, Hu Liu, Junshu Yan, Ning Ma   +8 more
wiley   +1 more source

PRRs in pathogen recognition

Open Life Sciences, 2006
Uematsu Satoshi, Akira Shizuo
doaj   +1 more source

Short-term thermal stratification and partial overturning events in a warm polymictic reservoir: effects on distribution of phytoplankton community

Brazilian Journal of Biology
In lentic freshwater ecosystems, patterns of thermal stratification play a considerable part in determining the population dynamics of phytoplankton.
RM. Santos, AA. Saggio, TLR. Silva, NF. Negreiros, O. Rocha   +4 more
doaj   +1 more source

The Role of miRNAs in Chicken Immune Regulation and Prospects for Disease‐Resistant Breeding

Animal Research and One Health, EarlyView.
A schematic workflow illustrating the screening of disease‐resistant miRNAs and the generation of miRNA‐based disease‐resistant chickens via PGC‐mediated germline genome editing. ABSTRACT MicroRNAs (miRNAs) are emerging as pivotal regulators of the immune system, playing a decisive role in shaping disease resistance in chicken.
Qiangzhou Wang, Weiran Wu, Qingqing Cai, Jiaxing Wang, Qi Gao, Muhammad Iftikhar, Yulin Bi, Hao Bai, Lihong Gu, Guobin Chang, Shihao Chen   +10 more
wiley   +1 more source