Results 61 to 70 of about 165,830 (263)

Atom‐Efficient Cerium‐Based Molecular Cages as Biocompatible Reactive Oxygen Scavengers

Advanced Healthcare Materials, EarlyView.
Discrete mixed‐valent cerium molecular cages organize accessible redox centers within confined coordination environments and scavenge superoxide, hydrogen peroxide, and hydroxyl radicals. Encapsulation of the lead cage in an ROS‐responsive DTP nanoplatform enables lesion‐associated delivery, attenuates macrophage oxidative stress and inflammation, and ...
Chao Li, Chunbai Xiang, Ye Xu, Yu Liu, Keze Hong, Fanchu Zeng, Gelin Xu, Zhao‐Xi Wang, Jonathan L. Sessler, Ping Gong   +9 more
wiley   +1 more source

Occurrence of sulfated 5α-cholanoates in rat bile1

Journal of Lipid Research, 1978
Bile acids in bile from male and female rats with cannulated bile ducts have been analyzed by repetitive scanning gas–liquid chromatography–mass spectrometry after initial fractionation of conjugate classes on diethylaminohydroxypropyl Sephadex LH-20 ...
H Eriksson, W Taylor, J Sjövall
doaj   +1 more source

Metal Compound‐Based Non‐Enzymatic Electrochemical Cholesterol Sensors: Emerging Materials and Mechanistic Insights

Advanced Materials Interfaces, EarlyView.
This review discusses recent progress in metal complex‐based, non‐enzymatic electrochemical sensors for cholesterol detection. We examine metal oxides, metal sulfides, and hybrid nanomaterials, highlighting their catalytic mechanisms and material design strategies.
Longfei (Jack) Yin, Chao‐Tsen (Rora) Chen, Jacopo Giaretta, Thanh‐Qua Nguyen, Hoang‐Phuong Phan, Fariba Dehghani, Syamak Farajikhah   +6 more
wiley   +1 more source

Enzymatic methods may underestimate the total serum bile acid concentration.

PLoS ONE, 2020
Enzymatic assays based on bacterial 3α-hydroxysteroid dehydrogenase are the method of choice for quantification of total bile acids (BAs) in serum. Although non-specific, it is generally considered precise and robust.
Kateřina Žížalová, Marek Vecka, Libor Vítek, Martin Leníček   +3 more
doaj   +1 more source

Region‐Specific Profiling of the Gut Microbiome and Metabolite Landscape in Response to Dietary Intervention Using Electronics‐Free Ingestible Smart Sampling Capsules

Advanced Materials Technologies, EarlyView.
Region‐specific profiling of the gut microbiome is achieved non‐invasively using electronics‐free ingestible sampling capsules that activate at defined intestinal sites through stimuli‐responsive coatings. Deployed in a porcine dietary intervention model, the capsules resolve spatially distinct, fiber‐driven shifts in microbial composition and short ...
Devendra Sarnaik, Caitlyn Sullivan, Akshay Krishnakumar, Fangxin Chen, Anna Clapp Organski, Wayne W. Campbell, Jay S. Johnson, Tzu‐Wen L. Cross, Rahim Rahimi   +8 more
wiley   +1 more source

Dietary bile acid supplementation improves the intestinal health and growth performance of piglets partially through the FXR/AQPs pathway

Porcine Health Management
Background Maintaining the integrity of the structure and function of piglet intestines is crucial for their growth and health. This study aims to evaluate the effects of an antibiotic free diet supplemented with bile acid on gut health and growth ...
Beibei Zhang, Min Tian, Yahui Yang, Yueqin Qiu, Li Wang, Hao Xiao, Xiaoping Zhu, Limei Qin, Xuefen Yang, Zongyong Jiang   +9 more
doaj   +1 more source

Hepatic deletion of X-box binding protein 1 impairs bile acid metabolism in mice

Journal of Lipid Research, 2017
The unfolded protein response (UPR) is an adaptive response to endoplasmic reticulum stress and the inositol-requiring enzyme 1α/X-box binding protein 1 (IRE1α/XBP1) pathway of the UPR is important in lipid metabolism.
Xiaoying Liu, Anne S. Henkel, Brian E. LeCuyer, Susan C. Hubchak, Matthew J. Schipma, Eric Zhang, Richard M. Green   +6 more
doaj   +1 more source

Rab1A Promotes Hepatic Steatosis by Suppressing Mitophagy via the Raf‐1/ERK1/2/PINK1 Signaling Axis

Advanced Science, EarlyView.
Why does fat accumulate in the liver? Our study reveals Rab1A as the molecular switch that silences the cell's mitochondrial cleanup crew. Turning Rab1A off reactivates mitophagy, clears excess fat, and reverses fatty liver disease in mice—offering a promising new therapeutic target for MASLD, a growing global health challenge.
Li Zhang, Jianhua Li, Huilu Zhang, Qi Qin, Yichen Huang, Xiaofan Tian, Chao Sun, Binbin Li, Zhengxin Wang, Xin Zhang   +9 more
wiley   +1 more source

Copper‐Driven Epithelial Barrier Disruption: A Novel Mechanism of COPD Acute Exacerbations Mediated by the TNF‐α/ATP7A Axis

Advanced Science, EarlyView.
This study reveals a copper‐driven mechanism of COPD acute exacerbations mediated by the TNF‐α/ATP7A axis. TNF‐α suppresses the copper transporter ATP7A via competitive NF‐κB/CREB1/CBP signaling, resulting in intracellular copper accumulation, mitochondrial oxidative stress, and epithelial barrier disruption.
Xinru Xiao, Yongzhe Hao, Ziqi Ding, Zhipeng Wang, Yujia Shi, Yanhua Huang, Chunjian Qi, Qian Zhang   +7 more
wiley   +1 more source

Phosphorylated STYK1 Promotes Gemcitabine Resistance via Autophagy‐Mediated Cancer Stemness in Pancreatic Cancer

Advanced Science, EarlyView.
Gemcitabine resistance remains a major challenge in pancreatic ductal adenocarcinoma. This study identifies STYK1 as a key mediator of chemoresistance through autophagy‐dependent maintenance of cancer stemness. Gemcitabine‐activated AMPK phosphorylates STYK1 at Ser91 and Ser304, enhancing autophagy and stemness.
Xueying Dong, Shi Li, Chensong Huang, Xuehong Qian, Jieyu Guo, Yahao Guo, Guifang Wu, Qi Zhang, Hongfei Tan, Yu Han, Rui Zhang, Hao Lyu, Shuai Xiao, Dong Guo, Chaojun Yan, Wenying Qin, Changchun Li, Xing‐Zhen Chen, Ying Zhao, Cefan Zhou, Jingfeng Tang   +20 more
wiley   +1 more source