Results 81 to 90 of about 2,289,697 (227)

Oligosaccharides With Defined Glycosidic Bonds Shape Gut Microbial Succession and Metabolism Via Bond‐Specific Microbial Responders

Advanced Science, EarlyView.
Oligosaccharides with defined glycosidic bonds drive divergent gut microbial succession and shape unique metabolic profiles. Absolute time‐series profiling with Bayesian generalized Lotka–Volterra modeling identifies bond‐specific microbial responders, while monoculture validation and metaproteomics reveal linkage‐matched transport and cleavage modules.
Xiaoxuan Lu, Jiaqi Zou, Geng Han, Mengyao Zhao, Ting Luo, Xiangru Feng, Liangliang Zhu, Yijia Chen, Xiaoguo Ji, Jiayang Jin, Liming Zhao   +10 more
wiley   +1 more source

YTHDC1 Orchestrates Glucose and Glutamate Rewiring to Overcome Lethal Metabolic Stress in Triple‐Negative Breast Cancer

Advanced Science, EarlyView.
Lai et al. find that m6A reader YTHDC1 is specifically overexpressed in triple‐negative breast cancer (TNBC) and orchestrates glucose and glutamine metabolism in an m6A‐dependent manner to confer robust adaptability to lethal metabolic stress. Leveraging YTHDC1 knockdown‐induced metabolic vulnerability, an ATF4 mRNA‐targeted nanotherapy is developed to
Zheng‐Hao Lai, Yi Wang, Na‐Na Li, Ling Zeng, Renzhong Liu, Xue Li, Cheukfai Li, Xin‐Yu Ma, Wenkui Fu, Yingsen Tang, Jinjin Chen, Ning Liao, Man‐Li Luo   +12 more
wiley   +1 more source

Targeting the KAT7/H3K14ac/RAC2 Axis Mediates OXPHOS to Promote Stemness Maintenance and Malignancy in Glioblastoma

Advanced Science, EarlyView.
SOX2 upregulates KAT7 in glioma stem cells, where KAT7 deposits H3K14 acetylation at the RAC2 promoter to activate RAC2 transcription. RAC2‐GTP subsequently promotes PAK1/2/3 phosphorylation, increasing tricarboxylic acid cycle flux and mitochondrial respiration to support glioblastoma malignancy.
Jilong Liu, Yanfei Sun, Yuehua Zhu, Guangjing Mu, Jiazheng Wang, Liangliang Wang, Feihu Zhao, Zhimin Zhao, Jian Wang, Ying He, Zheng Jiang, Xingang Li, Mingzhi Han, Bin Huang   +13 more
wiley   +1 more source

Adsorption-induced negative carbon isotope sequence in over-mature coal-type gas from the southwest Ordos Basin

Scientific Reports
The carbon isotope sequence of alkanes is a key indicator used to distinguish organic from inorganic gas. A negative carbon isotope sequence (i.e., δ 13C1 > δ 13C2 > δ 13C3 > δ 13C4) is a characteristic feature of inorganic gas. Some gas samples from the
Xiaoming Wu, Qiang Meng, Haiwei Zhu, Heng Zhao, Yu Xiao, Zhuo Guo, Mengting Zhang, Liyu Liu, Luxing Dou, Zhigang Wen   +9 more
doaj   +1 more source

Linker‐Locking Strategy for the Rigidification of Flexible Metal–Organic Framework: Structural Stabilization and Controlled ESIPT for H2O/D2O Sensing

Advanced Science, EarlyView.
A linker‐locking strategy rigidifies the flexible metal–organic framework (MOF) MIL‐53‐(OH)2 via the cooperative encapsulation of ligands and structural water. This network significantly enhances the framework's aqueous stability. Crucially, rigidification suppresses enol emission to yield a single keto tautomer state with an extended lifetime ...
Amitosh Sharma, Seonghwan Lee, Seo I Park, Hak‐Won Nho, Junmo Seong, Eunseo Lee, Oh‐Hoon Kwon, Myoung Soo Lah, Jaewoong Lim   +8 more
wiley   +1 more source

High‐Density Type I Collagen Promotes IFN‐γ+ CD8+ T Cell Exhaustion via SAT1‐ASS1‐Mediated Glutamine Accumulation and Ferroptosis in Triple‐Negative Breast Cancer

Advanced Science, EarlyView.
High‐density type I collagen promotes glutamine (Gln) accumulation–related ferroptosis of TNBC cells via the spermidine/spermine N1‐acetyltransferase 1 (SAT1)‐ argininosuccinate synthase (ASS1) signaling pathway, thus depriving immune cells of Gln supply and inducing IFN‐γ+ CD8+ T cell exhaustion in the TME.
Jinyan Wang, Shuangyue Pan, Lu Bai, Bin Li, Tiantian Liu, Jianing Cao, Mengdi Yang, Heda Zhang, Duancheng Guo, Wenxiang Zhi, Zhonghua Tao, Xichun Hu   +11 more
wiley   +1 more source

Solvent‐Free Synthesis of Ultrabright Carbon Dots With Near‐Unity Quantum Yield for High‐Performance Light‐Emitting Diodes

Advanced Science, EarlyView.
A rational, solvent‐free synthesis utilizing 2,6‐diaminonaphthalene produces ultrabright green‐emissive carbon dots. Regulated by a self‐limiting oxidative capping mechanism, excitons undergo ultrafast intra‐particle funneling from the nitrogen‐doped carbon core to emissive surface traps.
Hyeonjin Park, Su Hwan Lee, Sejeong Seo, Soye Park, Soo min Ji, Hyunda Jo, Sehyeon Park, Young‐Hoon Kim, Woosung Kwon   +8 more
wiley   +1 more source

Origin of Carbon and Essential Fatty Acids in Higher Trophic Level Fish in Headwater Stream Food Webs

Biomolecules, 2019
Dietary carbon sources in headwater stream food webs are divided into allochthonous and autochthonous organic matters. We hypothesized that: 1) the dietary allochthonous contribution for fish in headwater stream food webs positively relate with canopy ...
Megumu Fujibayashi, Yoshie Miura, Reina Suganuma, Shinji Takahashi, Takashi Sakamaki, Naoyuki Miyata, So Kazama   +6 more
doaj   +1 more source

Infrared Laser-based Method for Measuring Isotope Ratios [PDF]

, 2005
The purpose of this research is to build an inexpensive, compact, and precise spectrometer that will measure the 13C/12C ratio in a sample of carbon dioxide gas.
Fluellen, Jerry
core  

A forensic approach to understanding habitat use from stable isotope analysis of (avian) claw material [PDF]

, 2003
1. The potential of using stable isotope signatures of avian claws in order to infer diet and habitat use was investigated. 2. Highly significant relationships observed between stable carbon and nitrogen isotope ratios (¹³C, &
Bearhop, S., Furness, R. W., Hilton, G.H., Furness, RW, Bearhop, S, Hilton, GM, Votier, S. C.; id_orcid, Waldron, S, Votier, SC, Furness, R.W., Waldron, S., Hilton, G. M.   +11 more
core   +1 more source