Results 91 to 100 of about 204,339 (353)

Glycomics expression analysis of sulfated glycosaminoglycans of human colorectal cancer tissues and non-neoplastic mucosa by electrospray ionization mass spectrometry

Einstein (São Paulo)
Objective To determine the presence of glycosaminoglycans in the extracellular matrix of connective tissue from neoplastic and non-neoplastic colorectal tissues, since it has a central role in tumor development and progression.
Ana Paula Cleto Marolla, Jaques Waisberg, Gabriela Tognini Saba, Daniel Reis Waisberg, Fernando Beani Margeotto, Maria Aparecida da Silva Pinhal   +5 more
doaj   +1 more source

NNMT Orchestrates Metabolic‐Epigenetic Reprogramming to Drive Macrophage‐Myofibroblast Transition in Hypertrophic Scarring

Advanced Science, EarlyView.
In macrophage‐myofibroblast transition, upregulated NNMT depletes S‐Adenosylmethionine‌ (SAM) and nicotinamide adenine dinucleotide(NAD+), thereby triggering epigenetic reprogramming via Histone H3 Lysine 27 acetylation (H3K27ac) accumulation at the promoter region of master transcription factor Prrx1.
Xiwen Dong, Weinan Guo, Yuxuan Qian, Wenyan Jin, Xiaozhen Li, Jingyuan Yang, Qingrong Ni, Shuang Wu, Fanni Li, Hua Wang, Chunying Li, Hong Cai   +11 more
wiley   +1 more source

Characterization of Proanthocyanidins from Parkia biglobosa (Jacq.) G. Don. (Fabaceae) by Flow Injection Analysis — Electrospray Ionization Ion Trap Tandem Mass Spectrometry and Liquid Chromatography/Electrospray Ionization Mass Spectrometry

Molecules, 2013
The present study investigates the chemical composition of the African plant Parkia biglobosa (Fabaceae) roots and barks by Liquid Chromatography - Electrospray Ionization and Direct Injection Tandem Mass Spectrometry analysis.
Wagner Vilegas, Lourdes Campaner dos Santos, Augustin Ephrem Nkengfack, Clenilson Martins Rodrigues, Viviane Candida da Silva, Viviane Raïssa Sipowo Tala   +5 more
doaj   +1 more source

Levitated Spinning Graphene [PDF]

, 2010
A method is described for levitating micron-sized few layer graphene flakes in a quadrupole ion trap. Starting from a liquid suspension containing graphene, charged flakes are injected into the trap using the electrospray ionization technique and are ...
Kane, B. E.
core   +1 more source

NDST3‐Induced Epigenetic Reprogramming Reverses Neurodegeneration in Parkinson's Disease

Advanced Science, EarlyView.
NDST3‐mediated epigenetic reprogramming revitalizes neuronal circuits in the substantia nigra and striatum to halt dopaminergic neuron degeneration and restore motor function in Parkinson's disease models. This strategy promotes neuronal maintenance and functional recovery, highlighting NDST3's therapeutic potential in neurodegenerative disorders ...
Yujung Chang, Yongwoo Na, Hyeonjoo Im, Garam Yang, Seungseon Yang, Hyun Soo Shim, Chunggoo Kim, GyeungYun Kim, Hyeok Ju Park, Hee Young Kim, Seung Eun Lee, Wonwoong Lee, Yoon Ha, Sungho Park, Jieun Kim, Won‐Young Cho, Woong Sun, Jong‐Seo Kim, Junsang Yoo   +18 more
wiley   +1 more source

Shaping electrospray plume with convergent sound beams

iScience
Summary: Electrospray ionization (ESI) is one of the mainstream ionization techniques for mass spectrometry (MS) nowadays. Here, we present a new variant of ESI-MS setup, in which an electrospray emitter points to the mass spectrometer’s orifice while ...
Yu-Hao Chen, Min-Min Hung, Pawel L. Urban   +2 more
doaj   +1 more source

The search for exudates from Eurasian watermilfoil and hydrilla [PDF]

, 2002
Secondary metabolites are produced by aquatic plants, and in some instances, exudation of these metabolites into the surrounding water has been detected.
Glomski, Lee Ann M., Lembi, C.A., Nicholson, R.L., Wood, K.V.   +3 more
core  

Amphiregulin and Epiregulin Confer Radioresistance in Esophageal Squamous Cell Carcinoma Through Oxidative Phosphorylation

Advanced Science, EarlyView.
Oxidative phosphorylation (OXPHOS) activity serves as a critical metabolic determinant of radiotherapy outcomes in esophageal squamous cell carcinoma (ESCC). The CEBPB/AREG/EREG axis drives radioresistance in ESCC by reprogramming OXPHOS. AREG and EREG function as predictive biomarkers for nCRT response and prognosis of ESCC patients.
Zhang Lin, Meilian Yao, Xin Xu, Dong Zhang, Lei Xu, Ling Rong, Xiaohang Wang, Yi Duan, Chengkun Chen, Jun Gu, Yao Zhang, Qiang Liu, Qing Ye, Gaoping Cui, Yujun Hao, Xiumei Ma   +15 more
wiley   +1 more source

Lipidomics of cellular and secreted phospholipids from differentiated human fetal type II alveolar epithelial cells

Journal of Lipid Research, 2006
Maturation of fetal alveolar type II epithelial cells in utero is characterized by specific changes to lung surfactant phospholipids. Here, we quantified the effects of hormonal differentiation in vitro on the molecular specificity of cellular and ...
Anthony D. Postle, Linda W. Gonzales, Wolfgang Bernhard, Graeme T. Clark, Marye H. Godinez, Rodolfo I. Godinez, Philip L. Ballard   +6 more
doaj   +1 more source

Electronic Spectroscopy of Isolated DNA Polyanions

, 2018
In solution, UV-vis spectroscopy is often used to investigate structural changes in biomolecules (i.e., nucleic acids), owing to changes in the environment of their chromophores (i.e., the nucleobases).
Daly, Steven, Gabelica, Valérie, Porrini, Massimiliano, Rosu, Frederic   +3 more
core   +2 more sources