Results 71 to 80 of about 130,442 (303)

Shrimp Virus Regulates ROS Dynamics via the Nrf2 Pathway to Facilitate Viral Replication

Advanced Science, EarlyView.
Viruses manipulate host ROS as a strategy to achieve successful infection. WSSV exploits Nrf2 pathway to maintain ROS homeostasis and establishes a positive feedback loop to facilitate WSSV replication. Wsv220 competitively binds to Keap1 to activate Nrf2. Nrf2 up‐regulates LvG6PDH to produce more NADPH and GSH to eliminate excessive ROS.
Honghui He, Kai Yuan, Junming Pan, Shaoping Weng, Chaozheng Li, Yihong Chen, Jianguo He   +6 more
wiley   +1 more source

RONIN/HCF1‐TFEB Axis Protects Against D‐Galactose‐Induced Cochlear Hair Cell Senescence Through Autophagy Activation

Advanced Science, EarlyView.
D‐galactose (D‐gal) induced inner ear hair cell senescence by inhibiting TFEB transcription. RONIN/HCF1 promotes TFEB transcription to prevent cochlear HCs from D‐gal‐induced senescence through autophagy activation. Abstract Age‐related hearing loss is characterized by senescent inner ear hair cells (HCs) and reduced autophagy.
Yongjie Wei, Yuhua Zhang, Wei Cao, Nan Cheng, Yun Xiao, Yongjun Zhu, Yan Xu, Lei Zhang, Lingna Guo, Jun Song, Su‐hua Sha, Buwei Shao, Fang Ma, Jingwen Yang, Zheng Ying, Zuhong He, Renjie Chai, Qiaojun Fang, Jianming Yang   +18 more
wiley   +1 more source

Acid digestion and symbiont: Proton sharing at the origin of mitochondriogenesis?

BioEssays, Volume 45, Issue 1, January 2023., 2023
ADMit hypothesis for the origin of eukaryotes. A bacterial symbiont became associated with a protophagocytic host that captured prey with membrane processes. The symbiont cooperated to kill and digest the prey with reactive oxygen species and the acidification of the microenvironment.
Mario Mencía
wiley   +1 more source

Machine Learning‐Based Radiomics in Malignancy Prediction of Pancreatic Cystic Lesions: Evidence from Cyst Fluid Multi‐Omics

Advanced Science, EarlyView.
This study develops noninvasive clinical‐radiomic models using preoperative CT images to predict the malignant potential of pancreatic cystic lesions. It demonstrates the models' high accuracy across various datasets, with AUCs exceeding 0.92. Additionally, multi‐omics analyses uncover key biological mechanisms, including secretion function and lipid ...
Sihang Cheng, Ge Hu, Shenbo Zhang, Rui Lv, Limeng Sun, Zhe Zhang, Zhengyu Jin, Yanyan Wu, Chen Huang, Lu Ye, Zhe‐Sheng Chen, Yunlu Feng, Aiming Yang, Zhiwei Wang, Huadan Xue   +14 more
wiley   +1 more source

PAF‐induced inflammatory and immuno‐allergic ophthalmic diseases and their mitigation with PAF receptor antagonists: Cell and nuclear effects

BioFactors, Volume 48, Issue 6, Page 1226-1249, November/December 2022., 2022
Abstract Ocular allergies are becoming more prevalent as more airborne pollutants, irritants and microbes pervade our environment. Inflammatory and allergic mediators released by dendritic and mast cells within the conjunctiva cause allergic conjunctivitis (AC), a prevalent ocular surface disorder that affects >40% of the world's human population on a ...
Najam A. Sharif
wiley   +1 more source

INHIBITION AND ACTIVATION OF BARLEY PEPTIDE HYDROLASES I. PEPTIDE HYDROLASE A [PDF]

Journal of the Institute of Brewing, 1971
Barley peptide hydrolase A acting on N-benzoyl-dl-arginine-p-nitroanilide as substrate is inhibited by the sulphydryl reagents N-ethyl maleimide and p-chloro-mercuriphenyl sulphonate. Oxidized glutathione, however, is non-inhibitory and several sulphydryl compounds are not stimulatory.
W.C. Burger, Neville Prentice, Mary Moeller   +2 more
openaire   +2 more sources

Gut Microbiota Colonization in Early Life Influences Susceptibility to Adulthood Hepatic Lipid Accumulation in High‐Fat‐Diet‐Fed Mice

Advanced Science, EarlyView.
This study indicates that perinatal antibiotic exposure elevates susceptibility to high‐fat‐diet‐induced hepatic lipid accumulation via disrupting early‐life gut microbiota colonization. The decreased Lactobacillus colonization inhibits primary‐to‐secondary bile acid conversion, lowering secondary bile acids, enhancing adulthood intestinal lipid ...
Yan‐Yan Zhu, Xin Dong, Hao Zhou, Ze‐Yan Li, Bo Wang, Ya‐Ping Song, Zhi‐Bing Liu, Xue Lu, Yi‐Hao Zhang, Yichao Huang, Hua Wang, De‐Xiang Xu   +11 more
wiley   +1 more source

Illuminating a biologics development challenge: systematic characterization of CHO cell-derived hydrolases identified in monoclonal antibody formulations

mAbs
Monoclonal antibodies (mAb) and other biological drugs are affected by enzymatic polysorbate (PS) degradation that reduces product stability and jeopardizes the supply of innovative medicines.
Melanie Maier, Linus Weiß, Nikolas Zeh, Valerie Schmieder-Todtenhaupt, Alireza Dehghani, Marius Nicolaus Felix, Daniel Heinzelmann, Benjamin Lindner, Moritz Schmidt, Joey Studts, Patrick Schulz, Bernd Reisinger, Kerstin Otte, Matthias Franzreb, Daniel Lakatos, Simon Fischer   +15 more
doaj   +1 more source

Enzymatic diversity in the haloactinomycetes isolated from rhizosphere of the plants in saline soils at the periphery of Dasht-e-Kavir desert

یافته‌های نوین در علوم زیستی, 2022
Saline rhizospheric areas are untouched environments for isolating actinomycetes with the potential of valuable salt tolerant enzyme production. In this study, we isolated and evaluated a total number of of 26 actinomycete strains from plant rhizosphere ...
Ensieh Salehghamari
doaj  

Intricate Knots in Proteins: Function and Evolution [PDF]

P. Virnau, L. A. Mirny, M. Kardar, PLoS Comp Biol 2, 1074-1079 (2006), 2007
A number of recently discovered protein structures incorporate a rather unexpected structural feature: a knot in the polypeptide backbone. These knots are extremely rare, but their occurrence is likely connected to protein function in as yet unexplored fashion.
arxiv