Results 51 to 60 of about 44,827 (196)
Molecular Medicine, 2022 Background Acute kidney injury (AKI) is still a critical problem in clinical practice, with a heavy burden for national health system around the world. It is notable that sepsis is the predominant cause of AKI for patients in the intensive care unit and ...
Xianzhi Li +6 more
doaj +1 more source
RIPK3 Orchestrates Scar‐Associated Macrophage Dysfunction to Drive Pulmonary Fibrosis
Advanced Science, EarlyView.Beyond signaling cell death, RIPK3 emerges as a critical metabolic regulator in pulmonary fibrosis. This research reveals that RIPK3 promotes PI3K‐AKT signaling in scar‐associated macrophages to fuel polyamine synthesis, independent of its kinase activity.
Tao Yang +12 more
wiley +1 more source
Spermidine, but not spermine, is essential for pigment pattern formation in zebrafish
Biology Open, 2016 Polyamines are small poly-cations essential for all cellular life. The main polyamines present in metazoans are putrescine, spermidine and spermine.
Hans Georg Frohnhöfer +10 more
doaj +1 more source
T Cell Exhaustion in Cancer Immunotherapy: Heterogeneity, Mechanisms, and Therapeutic Opportunities
Advanced Science, EarlyView.T cell exhaustion limits immunotherapy efficacy. This article delineates its progression from stem‐like to terminally exhausted states, governed by persistent antigen, transcription factors, epigenetics, and metabolism. It maps the exhaustion landscape in the TME and proposes integrated reversal strategies, providing a translational roadmap to overcome
Yang Yu +7 more
wiley +1 more source
Scientific Reports, 2023 Honey bee health has been an important and ongoing topic in recent years. Honey bee is also an important model organism for aging studies. Polyamines, putrescine, spermidine and spermine, are ubiquitous polycations, involved in a wide range of cellular ...
Srđana Đorđievski +6 more
doaj +1 more source
Advanced Science, EarlyView.Resident myonuclei are the molecular “control centers” for large multinuclear muscle fibers. It is presumed that, with aging, these control centers become compromised and contribute to delayed or blunted muscle adaptive potential. This study is a detailed roadmap that exposes how young versus aged myonuclei respond to a hypertrophic loading stimulus ...
Pieter J. Koopmans +8 more
wiley +1 more source
Effect of spermidine intake on overload‐induced skeletal muscle hypertrophy in male mice
Physiological ReportsSkeletal muscles exhibit high plasticity, such as overload‐induced hypertrophy or immobilization‐induced atrophy. During sports, skeletal muscle hypertrophy is induced by training to improve performance.
Tomohiro Iwata +4 more
doaj +1 more source
Mutagenic Properties of Nitrosated Spermidine
Experimental Biology and Medicine, 1978 SummaryThe nitrosation of spermidine results in direct-acting mutagens as shown by the Ames assay utilizing S. typhimurium TA1535. The mutagenic effect is catalyzed by thiocyanate and inhibited by ascorbic acid.The reaction takes place at pH ranges 3.0-6.0. The possibility that this reaction may play a role in human gastric cancer etiology is discussed.
M G, Kokatnur, M L, Murray, P, Correa
openaire +2 more sources
Genetic and Phenotypic Features of the Five Known Polyaminopathies: A Critical Narrative Review
American Journal of Medical Genetics Part A, EarlyView.ABSTRACT Polyaminopathies are a recently described family of rare genetic neurodevelopmental disorders. Polyaminopathies disrupt the biosynthesis of the primary polyamines: putrescine, spermidine, and spermine. Snyder–Robinson syndrome results from hemizygous loss‐of‐function variants in the spermine synthase (SMS) gene, resulting in decreased or ...
Elizabeth A. VanSickle +26 more
wiley +1 more source
BMEMat, EarlyView.Multifunctional nano‐networks (NNWs) are prepared via reaction‐induced self‐assembly (RISA) of spermidine (SPD), epigallocatechin gallate (EGCG), 2‐formylphenylboronic acid (2‐FPBA), and deferoxamine (DFO) through dynamic iminoboronate bonds. These NNWs leverage the oxidative AKI microenvironment to trigger disintegration, enabling site‐specific ...
Juan Jin +17 more
wiley +1 more source