Results 141 to 150 of about 3,525,166 (333)

Bioorthogonal Engineering of Cellular Microenvironments Using Isonitrile Ligations

open access: yesAdvanced Functional Materials, EarlyView.
Highly selective chemistries are required for fabrication and post‐cross–linking modification of cell‐encapsulating hydrogels used in tissue engineering applications. Isonitrile ligation reactions represent a promising class of bioorthogonal chemistries for engineering hydrogel‐based cellular microenvironments. Isonitrile‐based hydrogels are stable and
Ping Zhou   +2 more
wiley   +1 more source

Optimizing Angiopep‐2 Density on Polymeric Nanoparticles for Enhanced Blood–Brain Barrier Penetration and Glioblastoma Targeting: Insights From In Vitro and In Vivo Experiments

open access: yesAdvanced Functional Materials, EarlyView.
The Angiopep‐2 peptide density on polymeric nanoparticles significantly impacts blood–brain barrier (BBB) penetration. This study explores this nuanced relationship using various in vitro models and in vivo assays, revealing that dynamic models better predict BBB penetration.
Weisen Zhang   +9 more
wiley   +1 more source

MARCH1 regulates insulin sensitivity by controlling cell surface insulin receptor levels

open access: yesNature Communications, 2016
Insulin receptor levels at the cell surface are reduced in insulin resistance, for reasons that are not fully understood. Here, the authors identify the E3 ubiquitin ligase MARCH1 as a direct regulator of basal insulin receptor surface levels and ...
Arvindhan Nagarajan   +16 more
doaj   +1 more source

Intraoral Drug Delivery: Bridging the Gap Between Academic Research and Industrial Innovations

open access: yesAdvanced Functional Materials, EarlyView.
Intraoral drug delivery offers a promising route for systemic and localized therapies, yet challenges such as enzymatic degradation, limited permeability, and microbial interactions hinder efficacy. This figure highlights innovative strategies—mucoadhesive materials, enzyme inhibitors, and permeation enhancers—to overcome these barriers.
Soheil Haddadzadegan   +4 more
wiley   +1 more source

Tunable Thermoshrinkable Hydrogels for 4D Fabrication of Cell‐Seeded Channels

open access: yesAdvanced Functional Materials, EarlyView.
A thermoresponsive polymer with methacrylate groups for photo‐cross‐linking, based on polyethylene glycol, N‐isopropylacrylamide, and 2‐hydroxyethyl acrylate is synthetized to yield hydrogels that shrink upon temperature increase. The new polymer enables the fabrication of cell‐laden perfusable channels with diameters below 200 µm by combining ...
Greta Di Marco   +12 more
wiley   +1 more source

Insulin and insulin receptor abnormality.

open access: yesNihon Naika Gakkai Zasshi, 1993
インスリンあるいはインスリン受容体の異常が糖尿病者で見い出された.インスリン受容体に結合しえない異常インスリンやプロインスリンが産生されるインスリン遺伝子の異常,細胞表面のインスリン受容体の数や機能が減少するインスリン受容体遺伝子の異常あるいはインスリン受容体に対する自己抗体の存在が報告されている.いずれも高インスリン血症の存在が診断への手掛りとなるが,インスリンの異常ではインスリン抵抗性は存在しないがインスリン受容体の異常では存在する点が最大の鑑別点となる.インスリン遺伝子あるいはインスリン受容体遺伝子の異常が見い出された家系について検討すると,糖尿病の発症年齢,重症度は均一でなく,その発症には他の遺伝子異常あるいは環境要因の関与も推定され,糖尿病の発症にはいくつかの因子が関与していると考えられた.
openaire   +3 more sources

A Gpr120-selective agonist improves insulin resistance and chronic inflammation in obese mice. [PDF]

open access: yes, 2014
It is well known that the ω-3 fatty acids (ω-3-FAs; also known as n-3 fatty acids) can exert potent anti-inflammatory effects. Commonly consumed as fish products, dietary supplements and pharmaceuticals, ω-3-FAs have a number of health benefits ascribed ...
Akiyama, Taro E   +20 more
core   +1 more source

“Therapies Through Gut:” Targeted Drug Delivery for Non‐Gastrointestinal Diseases by Oral Administration

open access: yesAdvanced Healthcare Materials, Volume 14, Issue 17, July 4, 2025.
Schematic illustration of the mechanism of targeted delivery of nanoparticles including 1) paracellular, 2) endolysosomal escape, 3) receptor mediated endocytosis, and 4) M cell mediated transport for non‐GI diseases by oral administration such as atherosclerosis, cancer, diabetes, and brain diseases. Abstract Oral drug delivery is a promising approach
Subarna Ray   +2 more
wiley   +1 more source

Lipid Nanoparticle‐Mediated CRISPR‐Cas13a Delivery for the Control of Bacterial Infection

open access: yesAdvanced Healthcare Materials, Volume 14, Issue 7, March 14, 2025.
New formulations of lipid nanoparticles (LNPs) that can deliver nucleic acids to Gram‐negative bacteria are proposed to combat bacterial infection. The delivery of nucleic acids by LNPs is aided by LNP‐helpers which weaken the bacterial outer membrane. LNPs encapsulating the Cas13a/gRNA expression vector achieve an antibacterial effect in both in vivo ...
Bookun Kim   +9 more
wiley   +1 more source

Novel Less Toxic, Lymphoid Tissue‐Targeted Lipid Nanoparticles Containing a Vitamin B5‐Derived Ionizable Lipid for mRNA Vaccine Delivery

open access: yesAdvanced Healthcare Materials, Volume 14, Issue 7, March 14, 2025.
The top‐performing lipid nanoparticle, incorporating a novel ionizable lipid derived from vitamin B5, demonstrates high mRNA transfection efficiency, low toxicity, favorable stability, targeted delivery to lymphoid tissues, and high immunogenicity, showing promise as a carrier for mRNA vaccines for infectious diseases and cancer.
Soyeon Yoo   +11 more
wiley   +1 more source

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