Results 41 to 50 of about 3,366,142 (289)

A new approach to ion exchange chromatography with conductivity detection for adulterants investigation in dietary supplements

, 2020
The extent of adulteration of dietary supplements has significantly increased in recent years. This situation worries health authorities and requires auxiliary analytical tools for the investigation of illegal substances purposely added.
Dal Molin, Thais Ramos, da Silveira, Gessica Domingos, Viana, Carine, Leal, Gabriela Camera, Mulleri, Larissa Sabo, Muratt, Diana Tomazi, de Carvalho, Leandro Machado   +6 more
core   +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

Simultaneous determination of several forms of phosphate in food by ion exchange chromatography

Tạp chí Kiểm nghiệm và An toàn thực phẩm
The phosphate group is a group of food additives commonly used for moisturizing, improving the structure, and retaining the color and flavor of products prepared from meat, fish, milk, baked goods, and beverages.
Do Thi Hong Thuy, Nguyen Nhu Thuong, Vu Thi Trang, Le Thi Hong Hao, Le Thi Thuy, Le Viet Ngan, Luu Thi Huyen Trang, Cao Cong Khanh, Dinh Viet Chien, Le Thi Phuong Thao, Nguyen Thi Anh Huong   +10 more
doaj   +1 more source

Formation of dimers in refolding of recombinant human interferon-γ by ion-exchange chromatography

浙江大学学报. 农业与生命科学版, 2006
The refolding process was performed by gradually decreasing the concentration of urea in the buffer after the denatured rhIFN-γ proteins had been bound onto the ion-exchange gel SP Sepharose Fast Flow.
JIN Ting, GUAN Yi-xin, YAO Shan-jing
doaj   +1 more source

Ion chromatography and ion chromatography / mass spectrometry as a complementary analysis technique for amino acid analysis in food, a review

, 2023
Background: Amino acids are the building blocks of life. Nine of the 20 common amino acids need to be consumed from food, as they are not created within the body.
M.T. Fletcher, N.L. Hungerford, J.F. Carter, Yates, HSA, Hungerford, NL, Fletcher, MT, H.S.A. Yates, Carter, JF   +7 more
core   +1 more source

The crystal structure of the Borrelia burgdorferi nicotinamidase BBE22 resolves a long‐standing annotation error

FEBS Open Bio, EarlyView.
The crystal structure of Borrelia burgdorferi nicotinamidase (PncA/BBE22) reveals the correct full‐length protein initiated from a non‐canonical AUU start codon. The structure validates previous biochemical findings and resolves a long‐standing annotation error, demonstrating that the truncated database sequence is structurally incompatible with the ...
Kalvis Brangulis
wiley   +1 more source

The fabrication and modification of capillary polymer monoliths for the separation of small ions [PDF]

, 2012
The fabrication and modification of polymer monoliths, in capillary formats, for the separation of small ions is presented. The separation of small ions using polymer monoliths has limitations and this work aims to investigate increasing the ion exchange
Moyna, Aine
core   +2 more sources

Importin 7 mediates the nuclear import of HIV‐1 integrase via a specific interacting interface

FEBS Open Bio, EarlyView.
HIV‐1 integrase enables viral DNA integration into the host genome. By binding to the core domain of the host protein Importin 7 via its C‐terminal domain, the integrase is transported across the nuclear membrane into the nucleus, where integration of the viral genome into host DNA takes place. This translocation is a critical step for subsequent viral
Juana Bana, Avigail Yariv, Tal Oppenheim, Hadar Amartely, Dana Reichmann, Oded Livnah   +5 more
wiley   +1 more source

A method for suppressing pH excursion during elution in ion-exchange chromatography

Journal of Chromatography Open
A simple method for reducing pH excursion during salt-induced elution in cation exchange chromatography is presented in this paper. Connecting a preequilibrated anion exchange cartridge in series in front of the cation exchange device just prior to the ...
Raja Ghosh
doaj   +1 more source

Extraction and Purification of Lactoferrin from Camel Milk and Investigation of Its Amylase Activity

Journal of Mazandaran University of Medical Sciences, 2022
Background and purpose: Lactoferrin is found in mucus, milk, and colostrum secretions and has antimicrobial activities, improves iron absorption, and enhances immune responses. Lactoferrin has the ability to degrade starch.
Saeed Zibaei, Anis Bakhshani, Ali Bidmeshkipour   +2 more
doaj