The methanol extracts from five different plant families (Asteraceae, Euphorbiaceae, Melastomataceae, Rubiaceae, and Solanaceae) collected at Regional Natural Park Ucumarí (Colombia), were screened for their acetylcholinesterase inhibitory activity through the modified Ellman's spectrophotometric method. The best inhibitory activities on this study were shown by the extracts of Solanum leucocarpum Dunal (IC50 = 204.59 mg/l) and Witheringia coccoloboides (Damm) (IC50 = 220.68 mg/l), both plants belonging to the Solanaceae family.
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http://dx.doi.org/10.1590/s0074-02762006000700013 | DOI Listing |
Nat Prod Res
January 2025
School of Pharmaceutical Science, Guangzhou University of Chinese Medicine, Guangzhou, P. R. China.
The extract of the stems of R. Br. yielded three new terpenes () including two diterpenes and one triterpene, named euryachins C-E, as well as three known diterpenes ().
View Article and Find Full Text PDFCancer Res
January 2025
University of California, San Diego, La Jolla, CA, United States.
Pancreatic ductal adenocarcinoma (PDAC) remains one of the deadliest solid cancers; thus, identifying more effective therapies is a major unmet need. In this study, we characterized the super enhancer (SE) landscape of human PDAC to identify drivers of the disease that might be targetable. This analysis revealed MICAL2 as a super enhancer-associated gene in human PDAC, which encodes the flavin monooxygenase MICAL2 that induces actin depolymerization and indirectly promotes SRF transcription by modulating the availability of serum response factor coactivators myocardin-related transcription factors (MRTF-A and MRTF-B).
View Article and Find Full Text PDFACS Appl Mater Interfaces
January 2025
Clinical Biochemistry, Drug Delivery & Therapy (CB-DDT), Vall d'Hebron Institute of Research (VHIR), 08035 Barcelona, Spain.
Pancreatic ductal adenocarcinoma (PDAC) is a very challenging disease with a very poor prognosis. It is characterized by a dense desmoplastic stroma that hampers drug penetration and limits the effectiveness of conventional chemotherapy (CT). As an alternative, the combination of CT with hyperthermia (HT) has been proposed as an innovative treatment modality for PDAC.
View Article and Find Full Text PDFJ Clin Invest
January 2025
Jeff and Penny Vinik Center for Allergic Disease Research, Division of Allergy and Clinical Immunology, Brigham and Women's Hospital, Boston, Massachusetts, USA.
Mast cells (MCs) expressing a distinctive protease phenotype (MCTs) selectively expand within the epithelium of human mucosal tissues during type 2 (T2) inflammation. While MCTs are phenotypically distinct from subepithelial MCs (MCTCs), signals driving human MCT differentiation and this subset's contribution to inflammation remain unexplored. Here, we have identified TGF-β as a key driver of the MCT transcriptome in nasal polyps.
View Article and Find Full Text PDFAm J Mens Health
January 2025
Department of Emergency Ward, The Fourth Hospital of Hebei Medical University, Shijiazhuang, China.
This study aims to investigate the effect and mechanism of cyclosporine A (CsA) on paclitaxel-resistant prostate cancer cells. Paclitaxel-resistant prostate cancer cell lines were established by gradual increment method. The proliferation of cells was tested using MTT and colony formation assay.
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