Results 31 to 40 of about 152,403 (204)

Role of Spermidine in Photosynthesis and Polyamine Metabolism in Lettuce Seedlings under High-Temperature Stress

Plants, 2022
High temperature is a huge threat to lettuce production in the world, and spermidine (Spd) has been shown to improve heat tolerance in lettuce, but the action mechanism of Spd and the role of polyamine metabolism are still unclear. The effects of Spd and
Xin He, Jinghong Hao, Shuangxi Fan, Chaojie Liu, Yingyan Han   +4 more
doaj   +1 more source

Drought Stress Mediated Changes in Food Crops: Mechanisms and Remediation Strategies

Advanced Science, EarlyView.
This work presents a multi‐scale framework for flavonoid‐mediated drought tolerance in staple food crops, integrating ROS redox regulation, antioxidant defense, rhizosphere microbial interactions, and sustainable agronomic practices. This interdisciplinary model provides core insights to develop climate‐resilient cropping systems and enhance global ...
Xiaoyi Duan, Litao Wang, Tuuli‐Marjaana Koski, Lizhe An, Thomas Efferth, Yujie Fu   +5 more
wiley   +1 more source

Polyamine Oxidase and Diamine Oxidase Activities in Human Milk during the First Month of Lactation [PDF]

, 2013
Objective: Human milk (HM) is the ideal food for all newborns and infants. Apart from various bioactive compounds, including cytokines, antibodies, hormones, vitamines, it also contains polyamines, such as spermine (Sp), spermidine (Spd) and putrescine ...
Pop-Trajkovic, Zoran, Najman, Stevo, Bjelakovic, Bojko, Bjelakovic, Ljiljana, Stojanović, Dusica, Jonovic, Marina, Kocic, Gordana   +6 more
core   +2 more sources

Molecular Cloning, Subcellular Localization, and Abiotic Stress Induction Analysis of a Polyamine Oxidase Gene from Oryza sativa

International Journal of Agronomy, 2023
Abiotic stress is a major bottleneck for crop productivity. To counter abiotic stresses, plants have developed several strategies, and the accumulation of polyamine (PA) serving as an osmolyte is one of them.
Ishita Samanta, Shweta Chaturvedi, Pamela Chanda Roy, Gopal Chowdhary   +3 more
doaj   +1 more source

The Cancer Cell Metabolic Reprogramming Remodels the Tumor Microenvironment: Molecular Mechanisms and Therapeutic Strategies

Advanced Science, EarlyView.
This review elucidates how cancer cell metabolic reprogramming—across glucose, lipid, amino acid, and nucleotide pathways—remodels the tumor microenvironment to suppress anti‐tumor immunity and promote immune escape. Targeting these metabolic axes offers promising strategies to overcome immunotherapy resistance and enhance cancer treatment.
Guoqing Xiang, Zhicheng Zhou, Xue Jiang, Zhenguang Du, Yangyang Zhan, Xinli Liu   +5 more
wiley   +1 more source

Alterations of renal polyamine metabolism in mice with folic acid-induced chronic kidney disease

Biochemistry and Biophysics Reports
Chronic kidney disease (CKD) often follows acute kidney injury, leading to renal fibrosis and progressive renal failure. Spermine, a polyamine with antioxidant and anti-inflammatory properties, helps reduce renal fibrosis and may serve as a biomarker for
Cheng Xue, Jiaxin Chen, Xinming Li, Chenchen Zhou, Zhiguo Mao   +4 more
doaj   +1 more source

Activation of endoplasmic reticulum stress response by enhanced polyamine catabolism is important in the mediation of cisplatin-induced acute kidney injury.

PLoS ONE, 2017
Cisplatin-induced nephrotoxicity limits its use in many cancer patients. The expression of enzymes involved in polyamine catabolism, spermidine/spermine N1-acetyltransferase (SSAT) and spermine oxidase (SMOX) increase in the kidneys of mice treated with ...
Kamyar Zahedi, Sharon Barone, Christina Destefano-Shields, Marybeth Brooks, Tracy Murray-Stewart, Matthew Dunworth, Weimin Li, Joanne R Doherty, Mark A Hall, Roger D Smith, John L Cleveland, Robert A Casero, Manoocher Soleimani   +12 more
doaj   +1 more source

Gut Health in Ostriches (Struthio camelus): Insights Into Intestinal Structure, Functions, Microbiome, and Improvement Strategies

Animal Research and One Health, EarlyView.
Our paper systematically reviews the intestinal structure, function, and microbiota of ostriches, along with strategies for improving their gut health. We analyze how these factors collectively influence intestinal homeostasis and ostrich welfare, emphasizing probiotics as a promising intervention to enhance gut health, boost population well‐being, and
Zi‐Qun Zhang, Fang‐Fang Guo, Wen‐Juan Du, Meng Li, Aftab Shaukat, Zhu‐Qing Jia, Shu‐Cheng Huang   +6 more
wiley   +1 more source

Transient kinetics of polyamine oxidase from Zea mais L.

, 1997
The catalytic cycle of polyamine oxidase from Zea mais was characterized by means of stopped flow ...
FEDERICO R., BELLELLI, Andrea, LAURENZI M., ANGELINI R.   +3 more
core   +1 more source

Comparative genomics and evidence for an unusual polyamine oxidation pathway in aquatic duckweed (Spirodela polyrhiza L.)

Current Plant Biology
Polyamines (PA) cellular levels are maintained through a balance between synthesis and catabolism, achieved by two classes of enzymes polyamine oxidases (PAOs) and copper amine oxidases (CuAO). Here we investigated the occurrence, molecular evolution and
Rakesh K. Upadhyay, Jonathan Shao, Grace E. Roberts, Autar K. Mattoo   +3 more
doaj   +1 more source