Results 11 to 20 of about 3,933,717 (303)

Persistent free radicals in leaves as a stable standard for quantifying free radicals [PDF]

MethodsX
This study explored plant‐derived biogenic persistent free radicals (BPFRs) in crape myrtle leaves as an alternative standard to 2,2‐diphenyl‐1‐picrylhydrazyl (DPPH) for quantifying organic radicals.
Eric P. Vejerano, Khushboo Khushboo, Juan Vejerano   +2 more
doaj   +2 more sources

Methotrexate – pharmacological properties and its application in pharmacotherapy [PDF]

Farmacja Polska, 2020
Methotrexate (MTX), a structural analogue of folic acid, is one of the most extensively used and effective drugs for treating many kinds of tumour and autoimmune diseases.
Dawid Frączkowski, Łukasz Szeleszczuk
doaj   +1 more source

Nitric Oxide (NO) Differentially Modulates the Ascorbate Peroxidase (APX) Isozymes of Sweet Pepper (Capsicum annuum L.) Fruits

Antioxidants, 2022
Nitric oxide (NO) is a free radical which modulates protein function and gene expression throughout all stages of plant development. Fruit ripening involves a complex scenario where drastic phenotypical and metabolic changes take place. Pepper fruits are
Salvador González-Gordo, Marta Rodríguez-Ruiz, Javier López-Jaramillo, María A. Muñoz-Vargas, José M. Palma, Francisco J. Corpas   +5 more
doaj   +1 more source

Class III Peroxidases (POD) in Pepper (Capsicum annuum L.): Genome-Wide Identification and Regulation during Nitric Oxide (NO)-Influenced Fruit Ripening

Antioxidants, 2023
The class III peroxidases (PODs) catalyze the oxidation of several substrates coupled to the reduction of H2O2 to water, and play important roles in diverse plant processes.
Salvador González-Gordo, María A. Muñoz-Vargas, José M. Palma, Francisco J. Corpas   +3 more
doaj   +1 more source

Small Heat Shock Protein (sHSP) Gene Family from Sweet Pepper (Capsicum annuum L.) Fruits: Involvement in Ripening and Modulation by Nitric Oxide (NO)

Plants, 2023
Small heat shock proteins (sHSPs) are usually upregulated in plants under diverse environmental stresses. These proteins have been suggested to function as molecular chaperones to safeguard other proteins from stress-induced damage.
Salvador González-Gordo, José M. Palma, Francisco J. Corpas   +2 more
doaj   +1 more source

Potassium (K⁺) Starvation-Induced Oxidative Stress Triggers a General Boost of Antioxidant and NADPH-Generating Systems in the Halophyte Cakile maritima

Antioxidants, 2022
Potassium (K+) is an essential macro-element for plant growth and development given its implication in major processes such as photosynthesis, osmoregulation, protein synthesis, and enzyme function.
Hayet Houmani, Ahmed Debez, Larisse de Freitas-Silva, Chedly Abdelly, José M. Palma, Francisco J. Corpas   +5 more
doaj   +1 more source

Analysis of Protein Oxidative Modifications in Follicular Fluid from Fertile Women: Natural Versus Stimulated Cycles

Antioxidants, 2018
Oxidative stress is associated with obstetric complications during ovarian hyperstimulation in women undergoing in vitro fertilization. The follicular fluid contains high levels of proteins, which are the main targets of free radicals.
Irantzu Pérez-Ruiz, Susana Meijide, María-Luisa Hérnandez, Rosaura Navarro, Zaloa Larreategui, Marcos Ferrando, María-Begoña Ruiz-Larrea, José-Ignacio Ruiz-Sanz   +7 more
doaj   +1 more source

Sweet Pepper (Capsicum annuum L.) Fruits Contain an Atypical Peroxisomal Catalase That Is Modulated by Reactive Oxygen and Nitrogen Species

Antioxidants, 2019
During the ripening of sweet pepper (Capsicum annuum L.) fruits, in a genetically controlled scenario, enormous metabolic changes occur that affect the physiology of most cell compartments.
Marta Rodríguez-Ruiz, Salvador González-Gordo, Amanda Cañas, María Jesús Campos, Alberto Paradela, Francisco J. Corpas, José M. Palma   +6 more
doaj   +1 more source

Zawartość polifenoli i aktywność przeciwutleniająca ekstraktów z Hyperici herba w zależności od miejsca zbioru

Herbalism, 2022
Dziurawiec zwyczajny (Hypericum perforatum, Hypericaceae – dziurawcowate), znany też jako ziele św. Jana (St. John’s Wort), jest rośliną ruderalną powszechnie występującą w Europie, Azji, Ameryce Północnej, Australii oraz w północnej części Afryki, na ...
Aleksandra Wasiak, Ilona Bodek, Agnieszka Zielińska, Katarzyna Paradowska   +3 more
doaj   +1 more source

Assay of the antioxidant capacity of foods using an iron(II)-catalysed lipid peroxidation model for greater nutritional relevance [PDF]

, 2010
The formation of free radicals by the iron-catalysed Fenton reaction is a major cause of oxidative damage in the body. Here a common assay of antioxidant capacity, inhibition of the β-carotene-linoleic acid model of lipid peroxidation, has been modified ...
Molan, Peter C., Peter C. Molan, Hélène L. Brangoulo, Brangoulo, Helene L.   +3 more
core   +1 more source