Results 11 to 20 of about 70,919 (240)

Chemical and Metabolic Aspects of Antimetabolite Toxins Produced by Pseudomonas syringae Pathovars

open access: yesToxins, 2011
Pseudomonas syringae is a phytopathogenic bacterium present in a wide variety of host plants where it causes diseases with economic impact. The symptoms produced by Pseudomonas syringae include chlorosis and necrosis of plant tissues, which are caused ...
Eva Arrebola   +3 more
doaj   +1 more source

Proline: a key player in plant abiotic stress tolerance

open access: yesBiologia Plantarum, 2015
Dramatic accumulation of proline is a common physiological response in plants exposed to various abiotic stresses. Accumulation of proline could be due to de novo synthesis, decreased degradation, lower utilization, or hydrolysis of proteins.
G. Kaur, B. Asthir
doaj   +1 more source

Enzymes Involved in the Biosynthesis of Arginine from Ornithine in Maritime Pine (Pinus pinaster Ait.)

open access: yesPlants, 2020
The amino acids arginine and ornithine are the precursors of a wide range of nitrogenous compounds in all living organisms. The metabolic conversion of ornithine into arginine is catalyzed by the sequential activities of the enzymes ornithine ...
José Alberto Urbano-Gámez   +4 more
doaj   +1 more source

L-Ornithine L-Aspartate Restores Mitochondrial Function and Modulates Intracellular Calcium Homeostasis in Parkinson’s Disease Models

open access: yesCells, 2022
The altered crosstalk between mitochondrial dysfunction, intracellular Ca2+ homeostasis, and oxidative stress has a central role in the dopaminergic neurodegeneration.
Maria Josè Sisalli   +5 more
doaj   +1 more source

Ammonia as a neuro- and hepatotoxin: clinical aspects

open access: yesМедицинский совет, 2015
Ammonia is the most studied and, apparently, the most critical pathogenetic factor for hepatic encephalopathy (HE). The pathogenesis of PE is varied depending on the type of liver damage. Apart from neurotoxic properties, ammonia has general cytotoxic as
A. O. Bueverov
doaj   +1 more source

Interconnected Set of Enzymes Provide Lysine Biosynthetic Intermediates and Ornithine Derivatives as Key Precursors for the Biosynthesis of Bioactive Secondary Metabolites

open access: yesAntibiotics, 2023
Bacteria, filamentous fungi, and plants synthesize thousands of secondary metabolites with important biological and pharmacological activities. The biosynthesis of these metabolites is performed by networks of complex enzymes such as non-ribosomal ...
Paloma Liras, Juan Francisco Martín
doaj   +1 more source

A Nano-Liposomal Formulation of Caffeic Acid Phenethyl Ester Modulates Nrf2 and NF-κβ Signaling and Alleviates Experimentally Induced Acute Pancreatitis in a Rat Model

open access: yesAntioxidants, 2022
The currently available management strategies for acute pancreatitis are inadequately effective which calls for exploration of new approaches to treat this condition.
Nancy Nabil Shahin   +2 more
doaj   +1 more source

Characterization of High-Ornithine-Producing Weissella koreensis DB1 Isolated from Kimchi and Its Application in Rice Bran Fermentation as a Starter Culture

open access: yesFoods, 2020
High-ornithine-producing Weissella koreensis DB1 were isolated from kimchi. Ornithine is produced from arginine via the intracellular arginine deiminase pathway in microorganisms; thus, high cell growth is important for producing ornithine in large ...
Mun So Yeong   +2 more
doaj   +1 more source

AIF1+CSF1R+ MSCs, induced by TNF‐α, act to generate an inflammatory microenvironment and promote hepatocarcinogenesis

open access: yesHepatology, EarlyView., 2022
Mesenchymal stem cells subset, educated by TNF‐α, are involved to generate inflammatory microenvironment and promote hepatocarcinogenesis Abstract Background and Aims Increasing evidence suggests that mesenchymal stem cells (MSCs) home to injured local tissues and the tumor microenvironment in the liver.
Chen Zong   +9 more
wiley   +1 more source

Combinatorial targeting of G‐protein‐coupled bile acid receptor 1 and cysteinyl leukotriene receptor 1 reveals a mechanistic role for bile acids and leukotrienes in drug‐induced liver injury

open access: yesHepatology, EarlyView., 2022
CHIN117 is a dual cysteinyl leukotriene receptor 1 (CYSLTR1) antagonist and G‐protein‐coupled bile acid receptor 1 (GPBAR1) agonist. In the liver, GPBAR1 and CYSLTR1 are coexpressed by liver sinusoidal endothelial cells (LSECs), HSCs, circulating monocytes/macrophages, and liver resident macrophages (Kupffer cells).
Michele Biagioli   +13 more
wiley   +1 more source

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