Results 281 to 290 of about 886,264 (353)

Spatially Resolved Mapping of Voltage‐Gated Proton Channel Activity Reveals Delayed Proton Transport in Local Microenvironments

open access: yesAdvanced Science, EarlyView.
A revolutionary imaging platform integrating quantitative single‐molecule photobleaching with ratiometric fluorescence probes enables high‐throughput (≈2300 individually resolvable channels) mapping of individual proton channels in a large field (≈3000 µm2), overcoming the spatial and temporal limitations of conventional electrophysiology.
Jiahua Zhuang   +5 more
wiley   +1 more source

Dietary Sources of Vitamin B-12 and Their Association with Vitamin B-12 Status Markers in Healthy Older Adults in the B-PROOF Study. [PDF]

open access: yesNutrients, 2015
Brouwer-Brolsma EM   +5 more
europepmc   +1 more source

NQO1/p65/CXCL12 Axis‐Recruited Tregs Mediate Resistance to Anti‐PD‐1 Plus Lenvatinib Therapy in PIVKA‐II‐Positive Hepatocellular Carcinoma

open access: yesAdvanced Science, EarlyView.
High PIVKA‐II expression in HCC correlates with resistance to anti‐PD‐1 plus lenvatinib, driven by an immunosuppressive TME. NQO1/p65/CXCL12 axis recruits Tregs to promote resistance to anti‐PD‐1 plus lenvatinib in HCC with high PIVKA‐II expression.
Biao Gao   +18 more
wiley   +1 more source

Association of dietary folate and vitamin B-12 intake with genome-wide DNA methylation in blood: a large-scale epigenome-wide association analysis in 5841 individuals. [PDF]

open access: yesAm J Clin Nutr, 2019
Mandaviya PR   +46 more
europepmc   +1 more source

Vitamin D Binding Protein, a Ligand of Integrin beta 1, Motivates Both Tumor Cells and Schwann Cells to Promote Perineural Invasion in Pancreatic Ductal Adenocarcinoma

open access: yesAdvanced Science, EarlyView.
Group‐specific component protein (GC) promotes perineural invasion (PNI) in pancreatic ductal adenocarcinoma (PDAC) by activating Schwann cell dedifferentiation and by enhancing tumor–Schwann cell chemoattraction, independently of vitamin D transport. Integrin β1 (ITGB1) functions as a GC receptor in both cancer cells and Schwann cells.
Shan Zhang   +15 more
wiley   +1 more source

Vitamin B-12 Concentrations in Breast Milk Are Low and Are Not Associated with Reported Household Hunger, Recent Animal-Source Food, or Vitamin B-12 Intake in Women in Rural Kenya. [PDF]

open access: yesJ Nutr, 2016
Williams AM   +14 more
europepmc   +1 more source

Punicalagin Enhances Autophagy Through Sirtuin 1/FoxO3a Axis to Inhibit Intracellular Mycobacterium Abscessus Infection

open access: yesAdvanced Science, EarlyView.
Punicalagin, a pomegranate molecule, helps the body fight Mycobacterium abscessus. It preferentially boosts interstitial macrophages in the lung, stabilizing mitochondria and switching on the autophagy via SIRT1/FoxO3a, which lowers bacterial load without directly killing bacteria.
Kefan Bi   +4 more
wiley   +1 more source

The Human Serum Metabolome of Vitamin B-12 Deficiency and Repletion, and Associations with Neurological Function in Elderly Adults. [PDF]

open access: yesJ Nutr, 2017
Brito A   +13 more
europepmc   +1 more source

Transport of Vitamin B 12 in Escherichia coli

open access: bronze, 1971
Paula M. Di Girolamo, Clive Bradbeer
openalex   +1 more source

Enhanced Selenium Supplement Extends Lifespan and Delays Multi‐Organs Aging by Regulating the Sik1 Pathway Through Maintaining Calcium Homeostasis

open access: yesAdvanced Science, EarlyView.
Aging involves physiological decline and heightened disease susceptibility, necessitating effective interventions. Redox‐responsive selenium‐loaded nanoparticles (SeMSNs) are developed, which delay cellular senescence by reducing oxidative stress and senescence markers (p16/p21). In aged mice, SeMSNs extend lifespan, improve organ function, and restore
Yang Yu   +15 more
wiley   +1 more source

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