Results 131 to 140 of about 5,391,787 (331)

Structural Elucidation of Phenylethyl Etonitazene in Seized Powders

Chinese Journal of Magnetic Resonance
The chemical structure of one seized yellow powder sample was elucidated by Fourier transform infrared spectroscopy (FTIR), gas chromatography-mass spectrometry (GC-MS), ultra-performance liquid chromatography-high resolution mass spectrometry (UPLC-HRMS)
LIU Yonghong, LIAO Qi, JIAO Ying, SUN Wei, XIAO Lei, JIA Wei, LIU Cuimei   +6 more
doaj   +1 more source

Fragmentation reactions using electrospray ionization mass spectrometry: an important tool for the structural elucidation and characterization of synthetic and natural products.

Natural product reports (Print), 2016
Over the last decade, the number of studies reporting the use of electrospray ionization mass spectrometry (ESI-MS) in combination with collision cells (or other activation methods) to promote fragmentation of synthetic and natural products for ...
D. Demarque, A. Crotti, R. Vessecchi, J. Lopes, N. Lopes   +4 more
semanticscholar   +1 more source

Keratin 19 as a prognostic marker and contributing factor of metastasis and chemoresistance in high‐grade serous ovarian cancer

Molecular Oncology, EarlyView.
Keratin 19 (KRT19) is overexpressed in high‐grade serous ovarian cancer with high levels of Kallikrein‐related peptidases (KLK) 4–7 and is associated with poor survival. In vivo analyses demonstrate that elevated KRT19 increases peritoneal tumour burden.
Sophia Bielesch, Isabel Vogel, Sina Nokodian, Johanna Moeller, Antonia Blechschmidt, Vicky Hecht, Vanessa Kuentzel, Katharina Thiedig, Melissa Schwab, Oliver Schilling, Holger Bronger, Marion Kiechle, Viktor Magdolen, Tobias Dreyer   +13 more
wiley   +1 more source

Bromophenolics from the Red Alga Polysiphonia decipiens

Marine Drugs, 2019
The isolation and the structure determination of a new bromophenolic compound, polysiphonol (10), as well as five previously reported compounds, (4−8), from the red alga Polysiphonia decipiens is reported. In addition, the absolute configuration of
James Lever, Grace Curtis, Robert Brkljača, Sylvia Urban   +3 more
doaj   +1 more source

The Physics of Living Neural Networks

, 2007
Improvements in technique in conjunction with an evolution of the theoretical and conceptual approach to neuronal networks provide a new perspective on living neurons in culture.
Eckmann, Jean-Pierre, Feinerman, Ofer, Gruendlinger, Leor, Moses, Elisha, Soriano, Jordi, Tlusty, Tsvi   +5 more
core   +2 more sources

DDX3X induces mesenchymal transition of endothelial cells by disrupting BMPR2 signaling

FEBS Open Bio, EarlyView.
Elevated DDX3X expression led to downregulation of BMPR2, a key regulator of endothelial homeostasis and function. Our co‐immunoprecipitation assays further demonstrated a molecular interaction between DDX3X and BMPR2. Notably, DDX3X promoted lysosomal degradation of BMPR2, thereby impairing its downstream signaling and facilitating endothelial‐to ...
Yu Zhang, Jing Wang, De‐Hui Qian, Yang‐Fan Lv, Tian‐Le Cheng, Da‐Peng Wang, Jing Zhang, Ye Fan   +7 more
wiley   +1 more source

Aspergoterpenins A–D: Four New Antimicrobial Bisabolane Sesquiterpenoid Derivatives from an Endophytic Fungus Aspergillus versicolor

Molecules, 2018
Aspergoterpenins A–D (1–4), four new bisabolane sesquiterpenoid derivatives, were obtained from the endophytic fungus, Aspergillus versicolor, together with eight known compounds (5–12), and their structures were elucidated by a ...
Zhi-Yong Guo, Ming-Hui Tan, Cheng-Xiong Liu, Meng-Meng Lv, Zhang-Shuang Deng, Fei Cao, Kun Zou, Peter Proksch   +7 more
doaj   +1 more source

A review on structural elucidation of metabolites of environmental steroid hormones via liquid chromatography–mass spectrometry

Trends in Analytical Chemistry (TrAC), 2018
This review covers liquid chromatography–mass spectrometry (LC-MS) strategies for structural elucidation of degradation and transformation products of environmental steroid hormones due to their estrogenic and/or androgenic effects on environmental ...
Li Ma, S. Yates
semanticscholar   +1 more source

Antibiofilm activity of a chionodracine‐derived peptide by NMR‐based metabolomics of cell‐free supernatant of Acinetobacter baumannii clinical strains

FEBS Open Bio, EarlyView.
KHS‐Cnd peptide is able to impair biofilm formation and disaggregate mature biofilms in Acinetobacter baumannii clinical isolates. Differences in extracellular metabolites reflect changes in biofilm metabolism due to KHS‐Cnd treatment. Among the differentially represented extracellular metabolites upon KHS‐Cnd treatment, the significantly altered ...
Fernando Porcelli, Enrico Landi, Francesco Maiurano, Irene Paris, Rosanna Papa, Marco Artini, Laura Selan, Stefano Borocci, Francesco Buonocore, Esther Imperlini   +9 more
wiley   +1 more source

Chemical diversity from the Tibetan Plateau fungi Penicillium kongii and P. brasilianum

Mycology, 2018
Two new secondary metabolites, kongiilines A and B (1, 7), and two asperphenamate derivatives, asperphenamates B and C (5–6), together with 16 known compounds (2–4, 8–20), were isolated from Tibetan Plateau fungi Penicillium kongii and Penicillium ...
Zhi-Guo Liu, Li Bao, Hong-Wei Liu, Jin-Wei Ren, Wen-Zhao Wang, Long Wang, Wei Li, Wen-Bing Yin   +7 more
doaj   +1 more source