Results 131 to 140 of about 70,737 (245)

The liver‐brain axis: A multidimensional regulatory network implicated in Alzheimer's disease pathogenesis and clinical implications

Animal Models and Experimental Medicine, EarlyView.
Schematic diagram of the core pathways of the liver‐brain axis in regulating AD. The liver regulates cerebral Aβ deposition, tau phosphorylation, and neuroinflammation through pathways such as metabolic detoxification (urea cycle, ketone body metabolism, glutathione antioxidant system), molecular secretion (APOE, CRP, FGF21, IGF‐1), and Aβ clearance ...
Ning Zhang, Wei Chen, Meng Wang
wiley   +1 more source

Water‐Derived Radical Species Initiate Six‐Electron Oxidation of Cyclic Ketones in Microdroplets

Angewandte Chemie, EarlyView.
Spontaneous six‐electron oxidation of cyclic ketones to yield dicarboxylic acids/keto acids is achieved in ethanol microdroplets containing about 2% water under ambient conditions without any metal salts, acids, or oxidants. Mechanistic studies show that trace amounts of water and molecular oxygen serve as active oxidants in this transformation ...
Muhammad Mujahid Ali, Manish Jana, William LeFever, Robert Graham Cooks   +3 more
wiley   +2 more sources

Metabolic controls on the carbon isotope fractionations of bacterial fermentation. [PDF]

Proc Natl Acad Sci U S A
Mueller EP, Heuer VB, Leadbetter JR, Hinrichs KU, Sessions AL.   +4 more
europepmc   +1 more source

Structural and Functional Siderophore Remodeling by Enzymatic Delipidation

Angewandte Chemie, EarlyView.
A surprising functional switch in bacterial siderophores was discovered through genome mining and the analysis of environmental and pathogenic Pandoraea species. Pandorachelin B, a lipocyclopeptide that promotes swarming motility, is cleaved by a specialized acylase, yielding a ring‐contracted, homodetic cyclopeptide, pandorachelin A, which exhibits ...
Elena Herzog, Keishi Ishida, Evelyn M. Molloy, Ron Hermenau, Kirstin Scherlach, Christian Hertweck   +5 more
wiley   +2 more sources

Characterization of trace element impurities and carbon isotope delta in HIPC-1, a high-purity graphite certified reference material. [PDF]

Anal Bioanal Chem
Chartrand MMG, Yang L, Methven B, Mihai O, Hélie JF, Adamowicz-Walczak A, Middlestead P, Mester Z, Meija J.   +8 more
europepmc   +1 more source

Characterization of vanillin carbon isotope delta reference materials. [PDF]

Anal Bioanal Chem, 2022
Chartrand MMG, Meija J, Hélie JF, Middlestead P, Ramalingam M, Aziz AA, Mester Z.   +6 more
europepmc   +1 more source

Refined chronologies of magnetochron M0r reveal asynchronous terrestrial and marine carbon isotope responses to Oceanic Anoxic Event 1a. [PDF]

Sci Adv
Lu GM, Shen ZS, Deng CL, Ogg JG, Sun MD, Li MS, Qin HF, Zhu RX, Zhou ZH, Xu YG.   +9 more
europepmc   +1 more source

Water deficit and potassium affect carbon isotope composition in cassava bulk leaf material and extracted carbohydrates. [PDF]

Front Plant Sci, 2023
Van Laere J, Merckx R, Hood-Nowotny R, Dercon G.   +3 more
europepmc   +1 more source

Enriched and Sustained Oxygen Vacancies in Amorphous NiWOx Enhance and Stabilize Urea Electrooxidation

Angewandte Chemie, EarlyView.
We propose an “amorphous oxygen mechanism (AOM)” for urea electrooxidation on amorphous NiWOx with tunable Ov, which achieves robust UOR activity and stability simultaneously. The “amorphous oxygen” in NiWOx prefers to escape during the UOR, in situ generating and stabilizing Ov, which thermodynamically promotes the reaction.
Yinuo Wang, Ke Zhang, Mingxing Zhou, Shijin Zhang, Ling Zhao, Gongjin Chen, Luca Magagnin, Lu Wang, Yian Wang, Minhua Shao   +9 more
wiley   +2 more sources

Vanadium-Mediated Carbon Isotope Exchange of Terminal Alkenes. [PDF]

J Am Chem Soc
Krivovicheva V, Gangireddy MSR, Liu A, Maya LB, Mebel AM, Bukhryakov KV.   +5 more
europepmc   +1 more source