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Catabolic Pathway - Crossref

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Last Updated: 10 January 2023

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13C-tryptophan breath test detects increased catabolic turnover of tryptophan along the kynurenine pathway in patients with major depressive disorder

The l -[1-13 C]tryptophan breath test is a noninvasive, stable-isotope tracer technique in which exhaled 13 CO 2 is attributed to tryptophan catabolism via the KYN route. Patients with MDD were significantly higher in patients with MDD during the 180-min test, under the u0394 13 CO2 -time curve, and the maximum u0394 13 CO 2 maxim were significantly higher in patients with MDD than in the controls compared to the controls. In both patients and controls, plasma tryptophan concentrations were inversely associated with C max.

Source link: https://doi.org/10.1038/srep15994


Sargahydroquinoic Acid in Sargassum Serratifolium Activates Lipid Catabolic Pathways in 3T3-L1 Preadipocytes by Inducing White Adipocyte Browning (P06-108-19)

Abstract Objectives Sargassum serratifolium, a marine brown alga consumed in Asian countries, has shown an anti-obesity effect by stimulating white adipose tissue browning. Therefore, the purpose of this research was to investigate the lipid catabolic effects of sargahydroquinoic acid, one of the primary bioactive chemicals of S. serratifolium by white adipocyte browning effect. Methods Isolated and Purified SHQA from S. serratifolium was used to treat 3T3-L1 preadipocytes to see the effects of lipid catabolism and white adipocyte browning in 3T3-L1 preadipocytes. SHQA has also reduced cellular lipid accumulation, which has also significantly reduced cellular lipid accumulation. In addition, SHQA therapy markedly raised lipolysis and mitochondria levels in 3T3-L1 cells. Funding Sources This report was part of the research, "u201dDevelopment of functional food products using natural materials derived from marine resources," according to the Ministry of Oceans and Fisheries, Republic of Korea's Ministry of Oceans and Fisheries, who was part of the program.

Source link: https://doi.org/10.1093/cdn/nzz031.p06-108-19


Metabolic Study of Human IgE: Evidence for an Extravascular Catabolic Pathway

Abstract Immunoglobulin E is a faster rate of release of neutrophilin E than those immunoglobulins. The IgE results were found to be the best fit to the former model, while IgG metabolism results could be the most comparable to the new model. This method gives an intercept value from plots of estimated values derived from the amount of radioiodinated immunoglobulin in the serum and radioiodide in the urine at various time points after injecting labeled immunoglobulin. The findings indicate that there is already extravascular catabolism of IgE and potential extravascular catabolism of IgD, with no evidence of significant extravascular absorption of the other three major immunoglobulin classes. It is easy to say that this extravascular catabolism is part of a unique catabolic function specific for IgE that is linked to specific interactions of IgE with basophils and mast cells.

Source link: https://doi.org/10.4049/jimmunol.120.5.1696


Characteristics of the heme catabolic pathway in mild unconjugated hyperbilirubinemia and their associations with inflammation and disease prevention

Abstract Heme catabolism has physiological roles that influence health by decreasing inflammation. Inter-group correlations in heme catabolism were investigated for GS, based on reduced inflammation and improved metabolic health. For GS, lower inflammation and improved metabolic stability had been reported. HMOX-1 and BLVRA's genetic expressions were determined. The use of isolated PBMCs was used to determine intracellular heme oxygenase. In GS vs. C, inflammation markers were significantly reduced. In addition, HMOX n short alleles were non-significantly higher in female GS people. We propose a model to clarify why GS people suffer reduced inflammation and are thus less vulnerable to oxidative-stress-mediated diseases.

Source link: https://doi.org/10.1038/s41598-017-00933-y


Increased glutarate production by blocking the glutaryl-CoA dehydrogenation pathway and a catabolic pathway involving l-2-hydroxyglutarate

We discover that Pseudomonas putida KT2440 has an additional glutarate catabolic pathway involving l-2-hydroxyglutarate, unusual metabolite made from 2-ketoglutarate. It can produce glutarate from l -lysine with a yield of 0. 85 mol glutarate/mol lysine. Therefore, l-Hysine anabolism and catabolism in P. putida's KT2440 is a metabolic alternative to the glutaryl-CoA dehydrogenation pathway; l-lysine can be both ketogenic and glucogenic.

Source link: https://doi.org/10.1038/s41467-018-04513-0


Electrochemically active bacteria sense electrode potentials for regulating catabolic pathways

Although electrode potentials are known to influence EAB's metabolic function, it is unknown if EAB's electrode potentials can be detected and respond to electrode potentials. A model EAB Shewanella oneidensis MR-1 can be used to achieve high growth yield in the presence of a high-growth catalyst as a result of a high-growth path.

Source link: https://doi.org/10.1038/s41467-018-03416-4


Structural basis for broad substrate specificity of UDP-glucose 4-epimerase in the human milk oligosaccharide catabolic pathway of Bifidobacterium longum

Abstract Infant gut-associated bifidobacteria has a metabolic pathway that specifically uses lacto-N -biose I and galacto-N -biose from human milk and mucin glycans. Bifidobacterium longum catalyzes epimerization reactions of UDP-Gal and UDP-GalNAc into UDP-Glc and UDP-GlcNAc with the same degree of activity as required to convert galactophores into glycolysis, according to Bifidobacterium longum's Bifidobacterium longum's peptide 4-epimerase from Bifidobacterium 4-e e 4et-Gal Glucose 4-e reaction of epimerizes in UDP-Glc and UDP-Glc and UDP-Glc and UDP-Glc and UDP-Glc and UDP-Glc and UDP-Glc and UDP-Glc and UDP-Glc. We analyzed the crystal structures of bGalE in three ternary complex versions: NAD +/UDP, NAD + /UDP-GlcNAc, and NAD +/UDP-Glc. During sugar ring rotation in the catalytic cycle, the versatile C2 pocket and the large C5 pocket of bGalE are suitable for housing both the hydroxy and N acetyl groups of the substrate during the substrate's cyclic cycle's sugar ring rotation. bGalE's substrate specificity and active site structure were different from those of Esherichia coli GalE, but they were nonetheless similar to those of human GalE.

Source link: https://doi.org/10.1038/s41598-019-47591-w


Development of a Synthetic 3-ketosteroid Δ1-dehydrogenase for the Generation of a Novel Catabolic Pathway Enabling Cholesterol Degradation in Human Cells

The discovery of cholesterol catabolic enzymes in Actinomycetes led to the conclusion that if enzymes that promote cholesterol catabolism could be genetically engineered and introduced into human cells, the atherosclerotic process may be avoided or reversed. Humans lack a 3-ketosteroid dehydrogenase, which catalyzes ring A's C-1 and C-2 desaturation. Here we discuss the creation, heterologous expression, and activities of a synthetic humanized u0394 1 -KstD expressed in Hep3B and U-937 cells, demonstrating that one of three primary enzymes essential for cholesterol ring opening can be functionally expressed in human cells.

Source link: https://doi.org/10.1038/s41598-019-42046-8


A novel prognostic model for prostate cancer based on androgen biosynthetic and catabolic pathways

Androgen deprivation therapy reduces tumor formation by lowering androgen levels, either surgically or pharmacologically. However, patients treated with ADT eventually experience biochemical recurrence and post-castration-resistant prostate cancer, which has been traced to androgen biosynthetic and catabolic pathways. According to this, gene expression profiles and clinical data of PCa patients were obtained from TCGA, MSKCC, and GEO databases for consensus clustering based on androgen biosynthetic and catabolic pathways. Patients were divided into two groups based on their risk profiles: high risk and low risk, respectively, and survival analysis was used to determine the difference between the two groups in biochemical recurrence-free time. These findings show that the prognostic model can be used as a predictive instrument to guide clinical therapy and provide new insight into prostate cancer basic research.

Source link: https://doi.org/10.3389/fonc.2022.950094

* 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