Results 161 to 170 of about 197,924 (340)

Author response for "Evaluation of cooking effects on otolith stable carbon and oxygen isotope values of teleostean fish Pomadasys kaakan (Cuvier, 1830)"

, 2021
Yen‐Chun Wang, Yi‐Jay Chang, Pei‐Ling Wang, Jen‐Chieh Shiao   +3 more
openalex   +1 more source

Alternative Pathway for Methyl Supply through the Coupling of SHMT1 and PEMT to Maintain Astrocytic Homeostasis in Parkinson's Disease

Advanced Science, EarlyView.
In Parkinson's disease, SHMT1 downregulation disrupts its interaction with PEMT in astrocytes, reducing SAM levels. This leads to H3K4me1 hypomethylation and decreased Slc1a2/Glul expression, ultimately exacerbating neuroexcitotoxicity and dopaminergic neuron loss.
Yue‐Han Chen, Rong‐Xin Zhu, Nuo‐Xi Zhang, Ting‐Ting Sun, Xi‐Wei Zhang, Yu‐Jie Zhao, Ben‐Yu He, Hang Yao, Ren‐Hong Du, Lei Cao, Wen‐Bin Zhang, Wei‐Guo Liu, Yun Cai, Cong Wang, Gang Hu, Yao Wei, Yang Liu, Ming Lu   +17 more
wiley   +1 more source

Structure‐Guided Engineering of a Promiscuous O‐Methyltransferase for a SAM Regeneration Biocatalysis Platform of Methylated Pharmaceuticals

Advanced Science, EarlyView.
A substrate promiscuous and regioselective O‐methyltransferase, SmOMT, is functionally and structurally characterized. A double mutant, SmOMTE152A/I306A, exhibited enhanced catalytic activity. By coupling this mutant with a mutant halide methyltransferase, AtHMTV140T, for SAM regeneration, a superior artificial fusion enzyme, AtHMTV140T‐L95‐SmOMTE152A ...
Xiran Xiong, Jun Song, Shihan Li, Lu Jin, Qi He, Baohui Zhang, Yan Cao, Shanyong Yi, Yanfang Yang, Xiang Li, Juan Li, Wei Huang   +11 more
wiley   +1 more source

Carbon isotopes and carbon cycling [PDF]

Nature, 1992
openaire   +1 more source

Elucidation of different forms of organic carbon in marine sediments from the Atlantic coast of Spain using thermal analysis coupled to isotope ratio and quadrupole mass spectrometry

, 2006
E. López Capel, José M. de la Rosa Arranz, Francisco Javier González-Vila, José Antonío González‐Pérez, David A.C. Manning   +4 more
openalex   +2 more sources

Mechanisms of Aristolochic Acid Resistance in Specialist Butterflies and Evolutionary Insights for Potential Protective Pathways

Advanced Science, EarlyView.
The study provides an extreme example of insect adaptation to highly toxic defenses of host plants, and investigates the complex strategies to resist carcinogenic aristolochic acids, including physical isolation, metabolic detoxification, and DNA repair.
Yang Luan, Yubo Zhang, Jingjing Li, Jianqing Zhu, Yuyang Lei, Yushi Hu, Zhenqiang Xin, Tianpei Xie, Jiang Zheng, Yuanyuan Lin, Jingjing Shen, Yiyi Cao, Xinyue You, Jing Xi, Jiaying Wu, Weiying Liu, Xinyu Zhang, Yuanting Zheng, David J. Lohman, Leming Shi, Wei Zhang   +20 more
wiley   +1 more source

Estimation of Residence Times and Recharge Area of Groundwater in the Moulares Mining Basin by Using Carbon and Oxygen Isotopes (South Western Tunisia)

, 2010
Younes Hamed, Moncef Zaïri, Wassim Ali, Hamed Ben Dhia   +3 more
openalex   +2 more sources

Characteristic decay patterns of the linear-chain states in carbon isotopes [PDF]

, 2018
T. Baba, Masaaki Kimura
openalex   +1 more source

Microdroplet Stabilization Enabled Direct Mass Spectrometric Identification of Electrogenerated Transient Carbocation Intermediates

Advanced Science, EarlyView.
The in situ mass spectrometric identification of the electrogenerated benzylic and phenylic carbocations, whose half‐lives in bulk solutions are on the nanosecond scale, is achieved by taking advantage of the unique stabilization effect of the electrosprayed microdroplets.
Guo‐Shan Zhu, Ren‐Jie Hui, Jun Hu
wiley   +1 more source

Ultra‐Clean Isotope Engineered Double‐Walled Carbon Nanotubes as Tailored Hosts to Trace the Growth of Carbyne

, 2022
Weili Cui, Ferenc Simon, Yifan Zhang, Lei Shi, Paola Ayala, Thomas Pichler   +5 more
openalex   +1 more source