Extract
An extract is a preparation obtained by separating biologically active or chemically informative constituents from a source material, such as a plant root, leaf, endocarp, aerial part, or other botanical tissue.
An extract is a preparation obtained by separating biologically active or chemically informative constituents from a source material, such as a plant root, leaf, endocarp, aerial part, or other botanical tissue. In the publications considered here, “extract” refers to diverse preparations—including decoctions, aqueous fractions, aqueous extracts, enzymatically prepared leaf extracts, alkaloid preparations, standardized fractions, and solvent-associated botanical preparations—rather than to a single chemical substance or standardized clinical product.
The biomedical significance of an extract depends on its source, extraction procedure, chemical composition, and intended application. The recent literature is dominated by plant extract bioactivity, with investigations of phenolic compounds, phytochemical profiles, antioxidant activity, antimicrobial effects, anti-inflammatory responses, oxidative stress, wound healing, antiparasitic activity, and agricultural toxicity. Reported experimental systems include mice, rats, cultured or cell-based assays, microorganisms, molluscs, and plant seedlings. Mechanistic investigations have involved nitric oxide, cyclic GMP, cyclooxygenase 2, NLRP3-linked inflammation, interleukin-1β, interleukin-6, tumor necrosis factor alpha, and oxidative-stress markers, although the specific mechanism varies by extract.
Rebuilt from PubMed 17 Sept 2026 · no new papers today
Where the papers sit
14 papers study extract directly. Those 14 are one subject: Plant Compound Bioactivity. Plant compounds are being profiled for antioxidant, antimicrobial, anti-inflammatory, antiparasitic, molluscicidal and wound-healing activity. Recurring emphasis falls on linking phytochemical composition to protective or inhibitory effects. No way of splitting those 14 scores better than chance. 2 new directions follow.
Helleborus thibetanus extract is recast as an ecological molluscicide rather than a biomedical preparation
Helleborus thibetanus extract acting on the schistosomiasis vector Oncomelania hupensis was evaluated as a field molluscicide, killing 85.19% of snails at 10 g/m² while remaining generally safe for several non-target organisms. This places the extract in an ecological disease-control role outside the set’s usual use of extracts as antioxidant, anti-inflammatory, antimicrobial, antiparasitic, wound-healing, or neuroprotective preparations, and suggests plant extracts can target transmission by removing an intermediate host rather than treating disease in the host itself 42726775Sep.
Acroptilon repens extract is positioned as a selective bioherbicide that discriminates between weeds and crops
Acroptilon repens aqueous extract acting on weed, forage, and crop seeds was tested as an agricultural intervention rather than a therapeutic or protective biomedical agent. It inhibited weed germination and seedling growth at lower concentrations than those affecting the crops, indicating a selective bioherbicidal role that could reduce reliance on conventional chemical herbicides and extends the extract concept into crop-protection chemistry 42658813Aug.
Recent Findings on extract
Plant-Derived Bioactive Compounds: Pomegranate, Salvia, Rumex, Juglans, and other plant extracts show that solvent, tissue, chemotype, and processing shape phytochemical composition and bioactivity 42743233Sep42726891Sep42625396Aug42287884Jun. Across models, phenolic-rich preparations produced antioxidant, antibacterial, anti-inflammatory, wound-healing, antiparasitic, molluscicidal, neuroprotective, and phytotoxic effects 42732010Sep42726775Sep42686804Sep42429225Jul42107754May42658813Aug. Reported mechanisms include oxidative-stress reduction, TLR4-NF-κB/AHR inhibition, L-arginine/NO/cGMP signaling, NLRP3 inflammasome interactions, and quorum-sensing suppression 42287884Jun42097345May42625396Aug42686804Sep. Ethanolic pomegranate extracts and lower-concentration Acroptilon repens extracts showed stronger activity than nonpolar extracts or against crops, while Tetraena gaetula alkaloids showed low acute toxicity but dose-dependent subacute organ injury 42743233Sep42658813Aug42092477May. Enzymatic olive-leaf processing, standardized goldenseal evaluation, and field testing of molluscicidal and anticoccidial preparations are moving this work toward optimized extracts and broader validation 42287884Jun42686804Sep42726775Sep42732010Sep.
Written from 14 PubMed abstracts, each one cited by PMID above. Published: 2026-09-16. Last written: 2026-09-17 by GPT. Drafted by language models from published abstracts; not medical advice.