Results 181 to 190 of about 13,066,219 (329)

Interpretation of in vitro concentration‐response data for risk assessment and regulatory decision‐making: Report from the 2022 IWGT quantitative analysis expert working group meeting

open access: yesEnvironmental and Molecular Mutagenesis, EarlyView.
Abstract Quantitative risk assessments of chemicals are routinely performed using in vivo data from rodents; however, there is growing recognition that non‐animal approaches can be human‐relevant alternatives. There is an urgent need to build confidence in non‐animal alternatives given the international support to reduce the use of animals in toxicity ...
Marc A. Beal   +14 more
wiley   +1 more source

Comparative Biochemical View of N-Glycans

open access: yesTrends in Glycoscience and Glycotechnology, 2005
N-結合型糖鎖は真核生物共通に存在しており、多くのタンパク質に付加している。ハイマンノース型、少マンノース型、複合型の3種に分類でき、それぞれの生物群によって特徴的な構造を持っている。ハイマンノース型糖鎖が、タンパク質の品質管理に関与することなど、幾つかの機能が知られているが、大部分の機能は未知である。本総説では、系統発生や個体発生の見地からN-結合型糖鎖を眺めている。
openaire   +2 more sources

Severity of effect considerations regarding the use of mutation as a toxicological endpoint for risk assessment: A report from the 8th International Workshop on Genotoxicity Testing (IWGT)

open access: yesEnvironmental and Molecular Mutagenesis, EarlyView.
Abstract Exposure levels without appreciable human health risk may be determined by dividing a point of departure on a dose–response curve (e.g., benchmark dose) by a composite adjustment factor (AF). An “effect severity” AF (ESAF) is employed in some regulatory contexts.
Barbara L. Parsons   +17 more
wiley   +1 more source

Targeting MGAT4A‐Mediated N‐Glycosylation as a Therapeutic Strategy to Inhibit Glioblastoma Stem Cell Invasion

open access: yesExploration, EarlyView.
ABSTRACT Glioblastoma (GBM) is the most aggressive type of primary brain tumor, and its invasive properties contribute significantly to incomplete surgical resection and tumor recurrence. Despite extensive clinical efforts to mitigate GBM invasion, targeted therapies against GBM stem cells (GSCs), which drive invasion, remain incompletely understood ...
Rui Niu   +3 more
wiley   +1 more source

Promiscuous Glycan Site Recognition by Antibodies to the High-Mannose Patch of gp120 Broadens Neutralization of HIV

open access: yesScience Translational Medicine, 2014
D. Sok   +14 more
semanticscholar   +1 more source

Potential neuroprotective and therapeutic agents and their mechanisms for irradiation‐induced brain injury

open access: yesIbrain, EarlyView.
In this review, agents such baicalein, troxerutin, epigallocatechin gallate, quercetin, melatonin, valproic acid, lithium, neurosteroid progesterone, as well as minocycline have been implicated as neuroprotective agents for irradiation‐induced neurological deficits. Also, agents such as glucocorticoids, methylphenidate, vitamin E, bisdemethoxycurcumin,
Seidu A. Richard   +2 more
wiley   +1 more source

Convergent evolution of metabolic functions: Evidence from the gut microbiomes of humans and dogs

open access: yesiMetaOmics, EarlyView.
Dogs have undergone convergent evolution in their genome with humans in long‐term co‐living. Studies have shown that the gut microbiomes of dogs exhibit greater similarity to those of humans compared to mice and pigs. In our study, we first compared the gut microbiomes of macaques, three dog groups, and two wolf groups to those in humans.
Xiaoyang Wang   +10 more
wiley   +1 more source

The evolutionary landscape and serotypic dynamics of avian infectious bronchitis virus from spike protein

open access: yesiMetaOmics, EarlyView.
This study integrates two decades of surveillance with genomic and structural analyses to decipher how spike protein glycosylation haplotypes drive avian coronavirus evolution. We uncover how specific glycosylation patterns associate with receptor‐binding affinity, shape global transmission dynamics, and correlate with clinical outcomes.
Hao Zhang   +21 more
wiley   +1 more source

Nano‐plastics disrupt systemic metabolism by remodeling the bile acid–microbiota axis and driving hepatic–intestinal dysfunction

open access: yesiMeta, EarlyView.
The pervasiveness of microplastic pollution poses a growing health risk, yet its long‐term metabolic consequences remain poorly defined. Here, we exposed mice to polyethylene terephthalate nanoparticle (NP) and combined histopathology, biochemistry, metabolomics, and metagenomics to resolve their interactions.
Yi Zhang   +11 more
wiley   +1 more source

Serum predictors of native liver survival post‐Kasai: Systematic review and meta‐analysis

open access: yesJournal of Pediatric Gastroenterology and Nutrition, EarlyView.
Abstract Objectives After hepatoportoenterostomy (HPE), a minority of biliary atresia (BA) patients reach adolescence without liver transplantation. Several serum markers have been suggested to better predict post‐HPE outcomes in BA patients. We aimed to identify serum predictors of native liver survival (NLS) in post‐HPE BA patients.
Ahmad Anouti   +5 more
wiley   +1 more source

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