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MetabolomicsMetabolomic mechanisms of antimicrobial peptides against Helicobacter pylori

Metabolomic mechanisms of antimicrobial peptides against Helicobacter pylori. By establishing treatment and control models combined with untargeted metabolomic analysis, this study aims to reveal the key metabolic pathway alterations and metabolic network reprogramming induced by antimicrobial pe...

2026-02-10 | MTBLS13884 | MetaboLights
MetabolomicsCharacterization of active peptides derived from three leeches and comparison of their anti-thrombotic mechanisms using the tail vein thrombosis model in mice and metabonomics

BACKGROUND AND AIMS: The increasing incidence of cardiovascular diseases has created an urgent need for safe and effective anti-thrombotic agents. Leech, as a traditional Chinese medicine, has the effect of promoting blood circulation and removing blood stasis, but its real mater...

2024-01-18 | MTBLS9306 | MetaboLights
MetabolomicsAlleviation of high-fat diet-induced lipid metabolism disorders: Role of quinoa peptides in inhibiting high-activity BSH-producing gut microbiota and modulating of BA-FXR/TGR5 signaling
Abstract Background: Lipid metabolism disorders contribute significantly to various metabolic diseases and are closely related to gut microbiota dysbiosis. Our previous study showed that oral gavage of quinoa peptides (QPep) restored gut microbiota composition and alleviated liver lipid metabolism d...
2025-06-16 | MTBLS12584 | MetaboLights
MetabolomicsThe genetic origin of evolidine, the first cyclopeptide discovered in plants, and related orbitides

Cyclic peptides are reported to have antibacterial, antifungal and other bioactivities. Orbitides are a class of cyclic peptide that are small, head-to-tail cyclized, composed of proteinogenic amino acids, and lack disulfide bonds; they are also known in several genera of the plant family Rutacea...

2020-10-14 | MTBLS1963 | MetaboLights
TranscriptomicsA new strategy to identify the long-distance mobile peptides from xylem sap.
Total RNAs were extracted from internodes and roots of 18 day-after-germination soybean plants, and the expression levels of the genes that encode xylem sap associated peptides or proteins were analyzed.
ORGANISM(S): Glycine max 
2015-10-23 | E-MTAB-5052 | biostudies-arrayexpress
TranscriptomicsNovel antioxidative peptides with potential to reduce psoriatic changes in PBMCs
Oxidative damage contributes significantly to the pathogenesis of psoriasis. We recently developed antioxidative peptides (UPF peptides) activating the endogenous glutathione system (GSH). In the present study, we analyzed gene expression profiles in the samples of psoriasis patients to find if thes...
ORGANISM(S): Homo sapiens 
2012-08-22 | E-GEOD-40263 | biostudies-arrayexpress
MetabolomicsTransgenic Tobacco Plants Expressing Synthetic Peptides: A Functional and Structural Analysis for Pathogen Resistance
The emergence of multidrug-resistant pathogens poses a significant threat to human health and agriculture. Current antimicrobial strategies against phytopathogens are often ineffective, failing to ensure food security while contributing to environmental pollution. Synthetic antimicrobial peptides (A...
2025-09-25 | MTBLS12255 | MetaboLights
TranscriptomicsAtypical DNA methylation of genes encoding cysteine-rich peptides in Arabidopsis thaliana
In plants, transposons and non-protein-coding repeats are epigenetically silenced by CG and non-CG methylation. This pattern of methylation is mediated in part by small RNAs and two specialized RNA polymerases, Pol IV and Pol V, in a process called RNA-directed DNA methylation. By contrast, many pr...
ORGANISM(S): Arabidopsis thaliana 
2012-11-22 | E-GEOD-34207 | biostudies-arrayexpress
TranscriptomicsTranscription profiling by array of E. coli NCTC 9001 challenged with four different cationic antimicrobial peptides
Obtaining an in depth understanding of the arms races between peptides comprising the innate immune response and bacterial pathogens is of fundamental interest and will inform the development of new antibacterial therapeutics. Many cationic antimicrobial peptides (AMPs) share a range of structural a...
ORGANISM(S): Escherichia coli 
2014-01-21 | E-MTAB-1703 | biostudies-arrayexpress
TranscriptomicsEffect of phenylalanine-rich peptide on growth and survival of Mycobacterium tuberculosis H37Rv (Mtb)
During our efforts to isolate potantial binding partners of Esat6, we isolated few peptides rich in phenylalanine residues that strongly interacted with Esat6. All peptides were less than fifty amino acids in length, One of them, Hcl1, when expressed in mycobacteria showed significant retardation in...
ORGANISM(S): Mycobacterium tuberculosis 
2009-11-10 | E-GEOD-16618 | biostudies-arrayexpress
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