Results 161 to 170 of about 774,968 (312)

Substrate‐Restricted Asymmetric Evolution of Solid‐State Nanopores

open access: yesAdvanced Theory and Simulations, EarlyView.
Standalone nanopores can either expand or shrink based on the nucleation mechanism. A substrate‐restricted asymmetric pore dynamics are uncovered ‐ top expansion and bottom shrinkage, with minimum aperture reduced and forming a conical geometry, driven by molecular migration along an energy potential gradient within nanopores.
Hongshuai Liu   +4 more
wiley   +1 more source

Hepatic heparan sulfate is a master regulator of hepcidin expression and iron homeostasis in human hepatocytes and mice. [PDF]

open access: yes, 2019
Hepcidin is a liver-derived peptide hormone that controls systemic iron homeostasis. Its expression is regulated by the bone morphogenetic protein 6 (BMP6)/SMAD1/5/8 pathway and by the proinflammatory cytokine interleukin 6 (IL6).
Anower-E-Khuda, Ferdous   +8 more
core  

Excessive DNA Double‐Strand Breaks–Associated 3D Genome Reorganization Contributes to Neural Tube Defects with Folate Deficiency

open access: yesAdvanced Science, EarlyView.
Neural tube defects (NTDs) are among the most common congenital malformations. However, the underlying etiology and mechanism remain elusive. Here, the role of DNA double‐strand breaks (DSBs) in 3D genome organization within the NTDs with folate deficiency is reported.
Ting Zhang   +12 more
wiley   +1 more source

Robertsonian Translocation t (21; 21) Offspring of a Balanced Translocation Carrier Parent; an Unfortunate Scenario

open access: yesMedical Journal of Dr. D.Y. Patil Vidyapeeth
Trisomy of chromosome 21 results in Down Syndrome (DS). It also occurs due to translocation between acrocentric chromosomes, namely 13, 14, 15, and 21.
Pallavi Bajpayee   +3 more
doaj   +1 more source

UCP2 Upregulates ACSL3 to Enhance Lipid Droplet Release from Acinar Cells and Modulates the Sirt1/Smad3 Pathway to Promote Macrophage‐to‐Myofibroblast Transition in Chronic Pancreatitis

open access: yesAdvanced Science, EarlyView.
These findings suggest that UCP2 promotes LD formation and release in acinar cells by upregulating ACSL3 expression. This alteration in the local lipid metabolic environment indirectly drives the MMT process. Additionally, UCP2 may regulate the acetylation of Smad3 through Sirt1, enhancing its nuclear activity and activating the TGF‐β/ Smad3 signaling ...
Kunpeng Wang   +9 more
wiley   +1 more source

Exploring Functionally Enhanced BLP‐Trained Macrophage Subpopulations in S. Aureus Infection: Underlying Mechanisms and Therapeutic Significance

open access: yesAdvanced Science, EarlyView.
BLP‐trained macrophages show augmented resistance to infection, but their mechanisms remain unclear. scRNA‐seq identified 13 BMDM subsets, with two novel anti‐inflammatory/antibacterial subpopulations (C5/C7) emerging post‐BLP training. BLP training activates NRF2, attenuates oxidative stress/ferroptosis, and boosts glycolysis/OXPHOS. Adoptive transfer
Yantong Wan   +13 more
wiley   +1 more source

RELA Ablation Contributes to Progression of Hepatocellular Carcinoma with TP53R249S Mutation and is a Potential Therapeutic Target

open access: yesAdvanced Science, EarlyView.
Genome‐wide CRISPR/Cas9 based screening identified RELA as a key tumor suppressor in TP53R249S‐mutant HCC. Its loss promotes tumorigenesis and metastasis via DVL1‐mediated Wnt/β‐catenin activation, while its agonist betulinic acid suppresses tumor progression.
Zhiping Wu   +17 more
wiley   +1 more source

Life Factors and Melanoma: From the Macroscopic State to the Molecular Mechanism

open access: yesAdvanced Science, EarlyView.
Melanoma, an aggressive skin cancer, arises from dynamic interactions between genetic, environmental, and lifestyle factors. This review explores how age, gender, obesity, diet, exercise, smoking, alcohol, UV exposure, circadian rhythms, and medications influence melanoma risk and progression.
Hanbin Wang   +4 more
wiley   +1 more source

Home - About - Disclaimer - Privacy