Results 41 to 50 of about 68,313 (291)

Effects of spermidine supplementation on cognition and biomarkers in older adults with subjective cognitive decline (SmartAge)—study protocol for a randomized controlled trial [PDF]

, 2019
Background: Given the global increase in the aging population and age-related diseases, the promotion of healthy aging is one of the most crucial public health issues.
Benson, Gloria, Buchert, Ralph, Flöel, Agnes, Grittner, Ulrike, Hetzer, Stefan, Horn, Nora, Kopp, Ute, Köbe, Theresa, Lange, Catharina, Madeo, Frank, Maglione, Marta, Mai, Knut, Michael, Eva, Märschenz, Stefanie, Schmitz, Dietmar, Schwarz, Claudia, Sigrist, Stephan J., Stekovic, Slaven, Wirth, Miranka   +18 more
core   +2 more sources

Polyamines mediate cellular energetics and lipid metabolism through mitochondrial respiration to facilitate virus replication.

PLoS Pathogens
Polyamines are critical cellular components that regulate a variety of processes, including translation, cell cycling, and nucleic acid metabolism. The polyamines, putrescine, spermidine, and spermine, are found abundantly within cells and are positively-
Yazmin E Cruz-Pulido, Natalie J LoMascolo, Delaina May, Jomana Hatahet, Caroline E Thomas, Andrea K W Chu, Samantha P Stacey, Maria Del Mar Villanueva Guzman, Gregory Aubert, Bryan C Mounce   +9 more
doaj   +1 more source

Novel Insight into the Multiple Biological Characteristics of Polyamines in the Gut: From Structure to Function

Frontiers in Bioscience-Landmark
This review explores the structure of polyamines, including putrescine, spermidine, and spermine, and their crucial roles in immune cell functions. Polyamines are active compounds derived from ornithine that regulate signaling pathways by interacting ...
Xinyi Yu, Shuzi Xin, Xiaohui Liu, Luming Pan, Weikai Shi, Yize Li, Hongli Wang, Xin Lu, Han Gao, Jingdong Xu   +9 more
doaj   +1 more source

Improvement of plant regeneration efficiency using polyamines for double haploid production in wheat (Triticum aestivum)

The Indian Journal of Agricultural Sciences, 2022
Polyamines are low molecular weight nitrogen containing compounds present in all living organisms. These are considered to be a new class of plant hormones, and play a positive role in plant growth and developmental processes including cell division, in
PRINKA GOYAL, S K THIND, PUJA SRIVASTAVA, ACHLA SHARMA   +3 more
doaj   +1 more source

Polyamine, peroxidase activity and total protein content during storage of bird-of-paradise [PDF]

, 2015
The present study was aimed to the determination of the effect of storage on some biochemical characteristics (PAs content, POX activity and total protein content) of flower tissue of bird-of-paradise.
de Moura, Fabiana Bezerra, de Souza, Angela Vacaro, Lima, Giuseppina Pace Pereira, Sim\uf5es, Adriano do Nascimento, Vianello, Fabio, Vieira, Marcos Ribeiro da Silva   +5 more
core  

Ultra‐High‐Throughput Discovery of Multifunctional Polyphenolic Coatings on Droplet Microarrays

Advanced Materials, EarlyView.
An ultra‐high‐throughput (UHT) combinatorial strategy enables the miniaturized synthesis and screening of ≈30 000 polyamine‐polyphenolic (PaPp) coatings using droplet microarrays (DMA). This approach reveals hundreds of previously unknown fluorescent, redox‐active, and antibacterial materials, including multifunctional, cell‐compatible surfaces ...
Vania Tanda Widyaya, Joaquín E. Urrutia Gómez, Paul Reuß, Alexander Welle, Rolf A. Gattung, Jana Mayer, Peter Krolla, Markus Reischl, Pascal Friederich, Anna A. Popova, Thomas Schwartz, Pavel A. Levkin   +11 more
wiley   +1 more source

One-pot domino synthesis of polyvicinalamine monomers [PDF]

, 2011
On a genere de l'imidazole par une reaction de type domino in situ entre le glyoxal, le formaldehyde et deux unites d'ammoniac aqueux. L'addition de bicarbonate aqueux et d'un anhydride carboxylique ou d'un dicarbonate de dialkyle conduit a la formation ...
Kılıç, Cem Burak, Taralp, Alpay
core   +4 more sources

Osmotic pressure: resisting or promoting DNA ejection from phage [PDF]

, 2008
Recent in vitro experiments have shown that DNA ejection from bacteriophage can be partially stopped by surrounding osmotic pressure when ejected DNA is digested by DNase I on the course of ejection.
Castelnovo, Martin, Evilevitch, Alex,, Jeembaeva, Meerim,, Larsson, Frida, Lund University.   +4 more
core   +3 more sources

Leveraging Macrophage Metabolic Reprogramming for Enhanced Anti‐Tumor Immunity

Advanced Science, EarlyView.
Tumor‐associated macrophages (TAMs) are key regulators of the tumor microenvironment (TME), with their metabolic states playing a critical role in tumor progression or regression. This review summarizes current understanding of TAM metabolic plasticity alongside cutting‐edge bioengineering innovations, outlining a roadmap for transforming the ...
Zhiyun Liu, Lingyao Zeng, Xulin Gan, Yilin Zhou, Han Shen, Dan Wu, Xin Shou, Minmin Jiang, Liyun Shi   +8 more
wiley   +1 more source

Polyamines directly promote antizyme-mediated degradation of ornithine decarboxylase by the proteasome

Microbial Cell, 2015
Ornithine decarboxylase (ODC), a ubiquitin-independent substrate of the proteasome, is a homodimeric protein with a rate-limiting function in polyamine biosynthesis.
R. Roshini Beenukumar, Daniela Gödderz, R. Palanimurugan, R. Jürgen Dohmen   +3 more
doaj   +1 more source