Results 91 to 100 of about 303,562 (310)

New trends in sample preparation methods for the determination of flavour compound in beers.

Kvasný průmysl, 2002
The  most popular  sample preparation  methods for  the determination  of  flavour  compounds  in  beers are usually based  on  steam  distillation  or liquid-liquid extraction.
T. HORÁK, J. ČULÍK, M. JURKOVÁ, P. ČEJKA, V. KELLNER   +4 more
doaj   +1 more source

Tumor B‐cell infiltration in platinum‐treated advanced muscle‐invasive urothelial carcinoma

Molecular Oncology, EarlyView.
Bladder tumors with higher pretreatment memory B‐cell infiltration were linked to longer survival after cisplatin chemotherapy, but not carboplatin. These tumors also showed more organized immune structures (tertiary lymphoid structures) and a shared pro‐inflammatory B‐cell‐rich community, suggesting that memory B cells may help identify patients most ...
Konrad Stawiski, Júlia Perera‐Bel, Alejo Rodriguez‐Vida, Nuria Juanpere, Jihyun Lee, Daniel E. Michaud, Jennifer L. Guerriero, Kent W. Mouw, Aristotelis Bamias, Filipe L. F. Carvalho, Joaquim Bellmunt   +10 more
wiley   +1 more source

Trends in extraction and purification methods of Lignans in plant-derived foods

Food Chemistry: X
Lignans are widely used as dietary supplements within health foods. However, excess addition of lignans can induce adverse reactions, therefore, it is necessary to develop rapid, effective, economical, and environmentally friendly extraction and ...
Yu-tong Yang, Yuan Zhang, Yu Bian, Juan Zhu, Xue-song Feng   +4 more
doaj   +1 more source

Distinguishing species using NMR-based Metabolomics

Natural Product Communications, 2018
Glycyrrhiza species are widely used as natural medicines and as well as food additives. Quality control during methods development is therefore critically important.
Ryuichiro Suzuki, Fusako Nakano, Hirokazu Ohno, Toshiyuki Murakami, Yoshihito Okada, Yoshiaki Shirataki   +5 more
doaj   +1 more source

Silver ion chromatography using solid-phase extraction columns packed with a bonded-sulfonic acid phase.

Journal of Lipid Research, 1989
Commercial solid-phase extraction columns packed with a stationary phase with bonded benzenesulfonic acid groups are readily converted to the silver ion form and can then be used for silver ion chromatography of lipids.
W W Christie
doaj   +1 more source

Patient therapy outcome modeling in cancer organoids is improved by cancer‐associated fibroblasts and organoid assembly convolution

Molecular Oncology, EarlyView.
Patient‐derived organoids (PDOs) from pancreatic, colorectal, and gastric cancers were used to evaluate standard and experimental therapies. Incorporating cancer‐associated fibroblasts (CAFs) into organoid cultures improved patient therapy outcome prediction.
Marcin Grochowski, Liudmyla Dolinchuk, Michał Jerzak, Albert Gandurski, Tomasz Grochowski, Weronika Wojtyś, Maciej Zadrożny, Wojciech Kaźmierczak, Małgorzata Lenarcik, Marta Matejak‐Górska, Radosław Samsel, Tomasz Olesiński, Dawid Walerych   +12 more
wiley   +1 more source

PAK1 activation drives divergent resistance mechanisms to aromatase inhibition and tamoxifen in a luminal: A breast cancer model

Molecular Oncology, EarlyView.
Breast cancer remains a major cause of cancer death in women, frequently developing endocrine therapy resistance. This study demonstrates that upregulated p21‐activated kinase 1 (PAK1) activity drives resistance to tamoxifen and long‐term estrogen deprivation in ER+ breast cancer models.
Luisa Schwarzmüller, Janina Müller, Efstathios‐Iason Vlachavas, Lukas Beumers, Lena Fleischhacker, Sara Burmester, Angelika Wörner, Sabine Karolus, Dominic Helm, Cindy Körner, Stefan Wiemann   +10 more
wiley   +1 more source

Solid phase extraction conditions.

, 2014
1Flow rate was ∼3 mL/min for washing and elution steps.Solid phase extraction conditions.
Kang Xia (655743), Chao Shang (133698), Partha Ray (655741), Katharine F. Knowlton (655742)   +3 more
core   +1 more source

3D-Printed Magnetic Stirring Cages for Semidispersive Extraction of Bisphenols from Water Using Polymer Micro- and Nanofibers

, 2020
A magnetic stirring device allowing semidispersive solid phase extraction of eight bisphenols (A, AF, AP, C, BP, G, M, and Z) from river waters using polymer nano- and microfibers followed by HPLC with spectrophotometric detection has been developed and ...
Švec, František, Satinský, Dalibor, Erben, Jakub, Šrámková, Ivana, Horstkotte, Burkhard, Solich, Petr, Chvojka, Jiří   +6 more
core   +1 more source

Mycobacterial cell division arrest and smooth‐to‐rough envelope transition using CRISPRi‐mediated genetic repression systems

FEBS Open Bio, EarlyView.
CRISPRI‐mediated gene silencing and phenotypic exploration in nontuberculous mycobacteria. In this Research Protocol, we describe approaches to control, monitor, and quantitatively assess CRISPRI‐mediated gene silencing in M. smegmatis and M. abscessus model organisms.
Vanessa Point, Wafaa Achache, Janïs Laudouze, Eliana Sepulveda Ramos, Mickaël Maziero, Céline Crauste, Stéphane Canaan, Pierre Santucci   +7 more
wiley   +1 more source