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A 3D Computational Study on the Formation and Progression of Tumor Cells in Diffuse Gastric Cancer.
Bull Math Biol
January 2025
CFisUC, Department of Physics, University of Coimbra, Rua Larga, 3004-516, Coimbra, Portugal.
Hereditary diffuse gastric cancer is characterized by an increased risk of diffuse gastric cancer and lobular breast cancer, and is caused by pathogenic germline variants of E-cadherin and -E-catenin, which are key regulators of cell-cell adhesion. However, how the loss of cell-cell adhesion promotes cell dissemination remains to be fully understood. Therefore, a three-dimensional computer model was developed to describe the initial steps of diffuse gastric cancer development.
View Article and Find Full Text PDFRevealing the mechanism underlying the viscosity improvement of rice protein yogurt by the presence of in-situ-produced dextrans.
Int J Biol Macromol
January 2025
College of Food Science and Technology, Huazhong Agricultural University, Wuhan, Hubei Province 430070, PR China. Electronic address:
The in-situ-produced dextrans (DXs) could effectively enhance the viscosity of rice protein (RP) yogurt, but the reason for this improvement has not been elucidated. This study aims to reveal the mechanism underlying the viscosity improvement of RP yogurt by the presence of in-situ DXs. DXs synthesized in RP yogurts under different optimum conditions were purified and fully characterized.
View Article and Find Full Text PDFHederagenin ameliorates ferroptosis-induced damage by regulating PPARα/Nrf2/GPX4 signaling pathway in HT22 cells: An in vitro and in silico study.
Bioorg Chem
December 2024
Institute of Geriatrics, The 2nd Medical Center, China National Clinical Research Center for Geriatric Disease, Chinese People's Liberation Army General Hospital, Beijing, China. Electronic address:
Background: Hederagenin (HG), derived from ivy seeds, is known to offer protection against Alzheimer's disease (AD). However, the specific molecular pathways through which it counters ferroptosis-induced neurotoxicity are not fully elucidated. This investigation seeks to delineate the processes by which HG mitigates neurotoxic effects in HT22 cells subjected to glutamate (Glu)-induced ferroptosis.
View Article and Find Full Text PDFNoise power properties of a cone-beam CT scanner with unconventional scanning geometry.
Phys Med
January 2025
Department of Physics "A. Pontremoli", University of Milan & INFN sez. Milano, Milano, Italy. Electronic address:
Purpose: This work aims at investigating, via in-silico evaluations, the noise properties of an innovative scanning geometry in cone-beam CT (CBCT): eCT. This scanning geometry substitutes each of the projections in CBCT with a series of collimated projections acquired over an oscillating scanning trajectory. The analysis focused on the impact of the number of the projections per period (PP) on the noise characteristics.
View Article and Find Full Text PDFElectronic Polarizability Tunes the Function of the Human Bestrophin 1 Cl Channel.
J Chem Theory Comput
January 2025
Department of Physics, Clarendon Laboratory, University of Oxford, Oxford OX1 3PU, U.K.
Mechanisms of anion permeation within ion channels and nanopores remain poorly understood. Recent cryo-electron microscopy structures of the human bestrophin 1 Cl channel (hBest1) provide an opportunity to evaluate ion interactions predicted by molecular dynamics (MD) simulations against experimental observations. Here, we implement the fully polarizable force field AMOEBA in MD simulations on different conformations of hBest1.
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