Results 101 to 110 of about 40,098 (225)

Polyamines: the pivotal amines in influencing the tumor microenvironment

Discover Oncology
Cellular proliferation, function and survival is reliant upon maintaining appropriate intracellular polyamine levels. Due to increased metabolic needs, cancer cells elevate their polyamine pools through coordinated metabolism and uptake.
Cassandra E. Holbert, Robert A. Casero, Tracy Murray Stewart   +2 more
doaj   +1 more source

Exploring polyamines: Functions in embryo/fetal development

Animal Nutrition, 2017
Polyamines such as putrescine, spermidine, spermine and agmatine are aliphatic polycationic compounds present in all living cells, and are derived from amino acids, intestinal bacteria, exfoliated enterocytes and supported from diet.
Tarique Hussain, Bi'e Tan, Wenkai Ren, Najma Rahu, Dildar Hussain Kalhoro, Yulong Yin   +5 more
doaj   +1 more source

Research on the Detoxification of Municipal Solid Waste Incineration Fly Ash: Organic Acid Washing Pretreatment Coupled With Cement/DDTC Stabilization

Asia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT Heavy metals in municipal waste incineration fly ash are potentially harmful to the ecological environment and human health. To mitigate the hazards of fly ash, this study attempts to detoxify fly ash through organic acid washing pretreatment coupled with cement/sodium diethyldithiocarbamate (DDTC) solidification.
Junfeng Pang, Tong Tian, Yaji Huang, Zhicheng Zhu, Zhiyuan Li   +4 more
wiley   +1 more source

Putrescine alleviates cold injury in peach fruit via elevating the conjugated polyamines in tonoplast and thereby maintaining vacuole conformation

Horticultural Science
Exogenous polyamines can elevate postharvest fruit cold resistance and alleviate cold injury. However, the mechanism, by which polyamines mediate cold tolerance, is still to be explored.
Huaipan Liu, Dongxiao Liu
doaj   +1 more source

Role of Polyamines in Immune Cell Functions

Medical Sciences, 2018
The immune system is remarkably responsive to a myriad of invading microorganisms and provides continuous surveillance against tissue damage and developing tumor cells.
Rebecca S. Hesterberg, John L. Cleveland, Pearlie K. Epling-Burnette   +2 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  

Treatments on Polypropylene Macro Synthetic Fibers for Improving Adhesion in Structural Concrete Reinforcement: A Systematic Review

Journal of Applied Polymer Science, EarlyView.
Surface functionalization of polypropylene macrofibers to enhance fiber‐matrix interfacial bonding. ABSTRACT Concrete is the most used higher compressive strength‐building material, albeit brittle to tensile, and flexural loads. Polypropylene (PP) synthetic polymeric macrofibres are commonly employed as reinforcement material to prevent this situation ...
Elena Saccani, Ylenia Ruberto, Daniel Milanese, Corrado Sciancalepore   +3 more
wiley   +1 more source

The influence of chemical polyamines analogs, decarboxylated ornithine and s-(adenosyl)-methionine on the polyamine synthsis velocity in test-systems from tissues with high proliferation

RUDN Journal of Medicine, 2010
The aliphatic (amino)- and (oxy)-derivatives of polyamines effect on the rate of polyamines (Putrescine, Spermidine and Spermine) synthesis in cell-free test-systems from rat's regenerating liver and Hepatoma tissues was examined.
S P Siatkin, Т Т Berezov, T V Fedoronchuk, N Yа Gridina, E A Neborakh, N A Shevkhun, N A Sokueva, E V Ustinova, R I Sokuev   +8 more
doaj  

Overview of Encapsulated Lysine and Methionine and Their Impacts on Transition Cow Performance and Health

Animal Research and One Health, EarlyView.
The transition period in dairy cows, spanning 3 weeks before and after calving, is a critical phase characterized by increased nutrient demands, reduced dry matter intake (DMI), and elevated risk of metabolic disorders such as negative nutrient balance (NNB), lipolysis, proteolysis, and oxidative stress.
Mohammed S. Seleem, Samy A. Elsaadawy, Zhaohai Wu, Lu Ma, Todd R. Callaway, Dengpan Bu   +5 more
wiley   +1 more source

Increased polyamines alter chromatin and stabilize autoantigens in autoimmune diseases

Frontiers in Immunology, 2013
Polyamines are small cations with unique combinations of charge and length that give them many putative interactions in cells. Polyamines are essential since they are involved in replication, transcription, translation, and stabilization of macro ...
Wesley H. Brooks
doaj   +1 more source