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Catalase - Europe PMC

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Last Updated: 10 January 2023

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SEMI-ROLLED LEAF 10 stabilizes catalase isozyme B to regulate leaf morphology and thermotolerance in rice (Oryza sativa L.).

Rice breeding's important factors include plant design and stress tolerance. Both abiotic stress resistance and rice grain yield can be increased by specific leaf morphologies and appropriate plant architecture. However, the mechanism by which plants simultaneously control leaf morphogenesis and stress resistance remains elusive. In both the field and the growth chamber, the natural Hap3 type of SRL10 allele was found to be present in the majority of aus rice accessions and was classified as a thermotolerant allele under extreme temperature stress. Moreover, the seed-setting rates were 3. 19 times higher and grain yield per plant was 1. 68 times higher in a near-isogenic line carrying Hap3 allele plants, which were previously unknown to plants carrying Hap1 allele under heat stress. In addition, our results provide a theoretical basis for simultaneous breeding for plant architecture and stress resistance.

Source link: https://europepmc.org/article/MED/36597711


Lactate oxidase/catalase-displaying nanoparticles efficiently consume lactate in the tumor microenvironment to effectively suppress tumor growth.

Therefore, regulating appropriate lactate levels in the TME may be a promising way to limit tumor cell proliferation and immune suppression. Both normoxic and hypoxic conditions, these complexes ate lactate produced by CT26 murine colon carcinoma cells. Specifically, AaLS/LOX made a significant amount of H 2 O 2 with complete lactate intake in order to cause dramatic necrotic cell death in spite of culture. Although the local administration of AaLS/LOX/Cat resulted in mice death, mice's death was caused by mice, AaLS/LOX/CAT's program notably reduced tumor formation with no noticeable side effects, there were no side effects. These results, combined, showed that protein nanoparticles modified with multiple metabolic enzymes could provide the opportunity to design new enzyme complex-based therapeutic devices that can modulate the TME by altering cancer metabolism.

Source link: https://europepmc.org/article/MED/36597089


Association of Catalase Gene Polymorphisms with Idiopathic Nephrotic Syndrome in a Chinese Pediatric Population.

No significant differences were observed between INS patients and controls for the CAT SNVs' allele and genotype frequencies. Patients with a C allele of CAT 769217 had a higher risk of developing steroid-dependent nephrotic syndrome than those with steroid-sensitive nephrotic syndrome. Conclusion Conclusions Our results show that genetic variations in CAT were unlikely to give susceptibility to INS in Chinese children, according to our results, although C alleles of the CAT rs769217 polymorphism showed a strong correlation with steroid-dependent responses in Chinese INS children.

Source link: https://europepmc.org/article/MED/35964233


Decolorization and detoxication of plant-based proteins using hydrogen peroxide and catalase.

Despite ongoing technological advancements, one of plant-based meat analogs' unresolved problems is to safely and effectively decolor plant proteins that had previously been labeled yellow-brown or strong brown color. Using catalase, first, soy-based protein isolate and textured vegetable protein were treated with hydrogen peroxide, and then the remaining hydrogen peroxide was degraded. In addition, cooking loss and juiciness of decolored TVP-based foods were increased relative to those of non-treated foods. These findings show that the decoloring process also improves the physical characteristics of soy-based protein products.

Source link: https://europepmc.org/article/MED/36575236


Critical Parameters in an Enzymatic Way to Obtain the Unsweet Lactose-Free Milk Using Catalase and Glucose Oxidase Co-Encapsulated into Hydrogel with Chemical Cross-Linking.

The present work involves the discovery and evaluation of a two-enzymatic one-pot bioreactor, including encapsulated glucose oxidase and catalase. All experiments were conducted at 12 u00b0C, which is corresponding to milk storage and transportation temperature. During the process, the presented findings demonstrated the importance of regulating pH and aeration of the reaction mixture in the continuous mode. While carbodiimide showed improved enzyme retention inside alginate capsules, the procedure of coimmobilization was carried out in an alginate matrix with the cross-linking of glutaraldehyde or carbodiimide. The coencapsulated enzymes may be used for nine cycles, preserving only around half of the initial production.

Source link: https://europepmc.org/article/MED/36613329


A novel role of catalase in cholesterol uptake of Helicobacter pylori.

H. pylori converts exogenous cholesterol into biomembranes and cholesterol as the membrane lipid constituents, specifically. In addition, an H. pylori mutant strain that lacks catalase activity was significantly lower in total cholesterol levels than the wild-type H. pylori strain. KatA's putative amino acid sequence domains contained a number of the cholesterol recognition/interaction amino acid consensus sequence domains. According to these results, H. pylori KatA with normal folding conformation functions as the cholesterol-binding or storage protein.

Source link: https://europepmc.org/article/MED/36574870


Fish oil nano-emulsion kills macrophage: Ferroptosis triggered by catalase-catalysed superoxide eruption.

Fish oil is increasingly used in the form of nanoemulsion as a nutrient and function fortifier. The nano-emulsions' exceptionally high proportion of polyunsaturated fatty acids and electron donors at the oil/water interface make an excellent site for the redox reaction. In acellular and cellular contexts, we demonstrate that mammalian catalase catalyzed a strong superoxide production in the fish oil nanoemulsion.

Source link: https://europepmc.org/article/MED/36566546


The Genetic Diversity and Dysfunctionality of Catalase Associated with a Worse Outcome in Crohn's Disease.

An increase in oxidative stress and an absence of antioxidant enzymes are both contributing to chronic gut inflammation in Crohn's disease. In addition, we used protein and regulation studies to see what causes long-term CAT inhibition in peripheral white mononuclear cells in both active and inactive CDs. Patients with the CAT SNP rs475043 A/G genotype had a significantly higher incidence of penetrating disease than those with no cigarette smoking CDs. The lowering of CAT protein expression in the PWMCs of the CD patients' indicated by a low amount of CAT protein as a result of poor CAT gene transcription downregulation. CAT SNPs and the risk of CD have been found in our research, which may have explains permanent CAT inhibition in CD patients with low CAT gene and protein expression.

Source link: https://europepmc.org/article/MED/36555526


Spectroscopic investigations on the interaction between nano plastic and catalase on molecular level.

Nano plastics have been consistently detected in numerous environmental mediums, even in human blood, as an emerging pollutant that is rapidly linked to certain functional proteins and the consequences of their physiological expressions. Compared to microplastics, there is less data on NP-protein interactions. Here, UV-visible spectroscopy, circular dichroism, and dynamic light scattering investigated the interaction between common polystyrene nano plastics and catalase under two common physiological conditions, pH 7. 4 and 4. 0. A trend of initial inhibition and increased activity was observed at pH 4. 0, which contrasted the enhanced catalytic effects at increasing PSNPs at pH 7. 4. This report will help determine the health risks of nano plastic pollution and provide a theoretical basis for investigating their toxicological effects.

Source link: https://europepmc.org/article/MED/36526206


Catalase and interleukin-6 serum elevation in a prediction of treatment-resistance in male schizophrenia patients.

MDA levels in both TRS and CSS male patients were significantly lower in comparison to healthy controls, blue Mn-SOD, CuZn-SOD, T-SOD, GSH-Px, and MDA; however, serum and serum IL-6 levels were both elevated. After an examination of covariance, there were significant differences in the operation of CAT and IL-6 levels among TRS and CSS male patients. In addition, a strong positive correlation was found between IL-6 levels and PANSS general psychopathology subscores, as well as between CAT participation and PANSS total scores in TRS male patients. In addition, a strong positive correlation was established between IL-6 and GSH-Px, and the interaction between IL-6 and GSH-Px was positively associated with PANSS general psychopathology results. Conclusions This preliminary research revealed that variations in OS and inflammatory cytokines may be involved in psychopathology for patients with persistent schizophrenia, particularly in male patients with TRS.

Source link: https://europepmc.org/article/MED/36521406

* Please keep in mind that all text is summarized by machine, we do not bear any responsibility, and you should always check original source before taking any actions

* Please keep in mind that all text is summarized by machine, we do not bear any responsibility, and you should always check original source before taking any actions