Results 91 to 100 of about 197,362 (384)

52-week efficacy and safety of telbivudine with conditional tenofovir intensification at week 24 in HBeAg-positive chronic Hepatitis B [PDF]

open access: yes, 2013
Background and Aims: The Roadmap concept is a therapeutic framework in chronic hepatitis B for the intensification of nucleoside analogue monotherapy based on early virologic response.
Aldo Trylesinski   +41 more
core   +4 more sources

Intestinal Clock Promotes Cognitive Memory Through Adenosine Signaling

open access: yesAdvanced Science, EarlyView.
The intestinal clock controls the expression of an adenosine enzyme that modulates systemic adenosine level and A1R signaling in the hippocampus, and in turn, cognitive function involving long‐term potentiation and BDNF‐dependent synaptic changes.
Min Chen   +13 more
wiley   +1 more source

Developing Biomaterial‐Based mRNA Delivery System for Lung Disease Treatment

open access: yesAdvanced Science, EarlyView.
Schematic illustration of biomaterial delivery mRNA for the treatment of lung diseases. Abstract Lung disease remains a persistent global health challenge. Advances in medical research have led to innovative strategies to combat these conditions, with biomaterials emerging as a promising platform for targeted drug delivery.
Qiancheng Gu   +7 more
wiley   +1 more source

Back-electron transfer suppresses the periodic length dependence of DNA-mediated charge transport across adenine tracts [PDF]

open access: yes, 2008
DNA-mediated charge transport (CT) is exquisitely sensitive to the integrity of the bridging π-stack and is characterized by a shallow distance dependence. These properties are obscured by poor coupling between the donor/acceptor pair and the DNA bridge,
Augustyn, Katherine E.   +4 more
core   +2 more sources

Engineering Neutrophil Vesicles for Synergistic Protection against Ischemia/Reperfusion Injury after Lung Transplant

open access: yesAdvanced Science, EarlyView.
Engineered neutrophil‐derived vesicles (SOD2‐Fer‐1@CVs) co‐delivering antioxidant and ferroptosis‐inhibitory agents enable inflammation‐targeted, ROS‐responsive therapy for ischemia–reperfusion injury in lung transplantation. Synergizing with ex vivo lung perfusion, this strategy alleviates oxidative stress and inflammation, restores vascular integrity,
Hao‐Xiang Yuan   +10 more
wiley   +1 more source

Nucleoside Transporter Proteins

open access: yesCurrent Vascular Pharmacology, 2009
Concentrative nucleoside transporters (CNT; SLC28) and equilibrative nucleoside transporters (ENT; SLC29) mediate the uptake of natural nucleosides and a variety of nucleoside-derived drugs, mostly used in anticancer therapy. SLC28 and SLC29 families consist in three and four members, respectively, which differ in their substrate selectivity and their ...
F. Javier Casado   +2 more
openaire   +4 more sources

HPLC reveals novel features of nucleoside and nucleobase homeostasis, nucleoside metabolism and nucleoside transport

open access: yesBiochimica et Biophysica Acta (BBA) - Biomembranes, 2020
Humans possess three members of the cation-coupled concentrative nucleoside transporter CNT (SLC 28) family, hCNT1-3: hCNT1 is selective for pyrimidine nucleosides but also transports adenosine, hCNT2 transports purine nucleosides and uridine, and hCNT3 transports both pyrimidine and purine nucleosides.
Carol E. Cass   +4 more
openaire   +3 more sources

Cascade‐Targeted Nanoparticles for Enhanced Gemcitabine Delivery and Adenosine Metabolism Modulation to Overcome Treatment Resistance in Pancreatic Cancer

open access: yesAdvanced Science, EarlyView.
The aberrant adenosine metabolism leads to chemoresistance and immunosuppressive microenvironment. A versatile albumin‐polyplexes conjugated nanoparticle B‐PDEA@CPA is prepare for the codelivery of gemcitabine and siCD39. The nanoparticle releases gemcitabine‐loaded albumin upon microenvironment to achieve promoted penetration and cellular uptake ...
Hongrui Fan   +10 more
wiley   +1 more source

An Enzymatic Flow-Based Preparative Route to Vidarabine

open access: yesMolecules, 2020
The bi-enzymatic synthesis of the antiviral drug vidarabine (arabinosyladenine, ara-A), catalyzed by uridine phosphorylase from Clostridium perfringens (CpUP) and a purine nucleoside phosphorylase from Aeromonas hydrophila (AhPNP), was re-designed under ...
Lucia Tamborini   +10 more
doaj   +1 more source

PLAUR+ Neutrophils Drive Anti‐PD‐1 Therapy Resistance in Patients with Hepatocellular Carcinoma by Shaping an Immunosuppressive Microenvironment

open access: yesAdvanced Science, EarlyView.
The present study reveals that PLAUR+ neutrophils are enriched in immunotherapy non‐responders and correlate with poor prognosis. PLAUR+ neutrophils dictate immunotherapy resistance in hepatocellular carcinoma by forming an immunosuppressive tumor microenvironment characterized by CD8+ T cell exclusion and macrophage‐dependent immune suppression.
Shaoqing Liu   +11 more
wiley   +1 more source

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