Ten previously undescribed iridoid glycosides (-), including monoiridoids, hybrid iridoid-alkaloids, bis-iridoids, noriridoid-iridoid dimers, and tetramers, were isolated from the roots of Merr. Structural elucidation revealed unique sugar chains not previously observed for iridoids and complex tetrameric configurations that are rare in nature. Compounds , , and demonstrated significant anti-inflammatory effects, with IC values ranging from 6.
View Article and Find Full Text PDFMultidrug resistance in bacteria poses a significant threat to global health, creating an urgent need for new sources of antibiotics. Nut grass or L., a common Asian medicinal herbal remedy, is gaining increasing attention in the scientific community as a potential source of antimicrobial agents.
View Article and Find Full Text PDFBased on molecular networking-guided isolation, 15 previously undescribed hydrogenated phenanthrene glycosides, including eight hexahydro-phenanthrenone glycosides, four tetrahydro-phenanthrenone glycosides, one dihydro-phenanthrenol glycoside, two dimers, and two known dihydrophenanthrene glycosides, were isolated from W.T.Wang, a popular regional edible vegetable at the northwest region of Vietnam.
View Article and Find Full Text PDFBackground: HER2-positive breast cancer is an aggressive subtype where innate/acquired resistance to targeted drugs remains a challenge. This study aims to uncover the underlying mechanisms of HER2 drug resistance through miRNA analysis and target identification.
Methods: MiRNA datasets were systematically retrieved from the GEO database, and differential expression analysis was conducted for both miRNA and mRNA datasets.
Background And Objectives: The biofilm formation has been widely recognized as one of the main mechanisms of antimicrobial resistance development in microorganisms. However, few studies are focusing on this phenomenon in spp. in clinical settings, especially on immuno-compromised patients.
View Article and Find Full Text PDFThe phytochemical composition of the leaves was studied for the first time. Two new triterpenoid saponins, named comtrifoside A () and comtrifoside B (), together with two other saponins () were purified by variously chromatographic techniques. For the first time, compound was informed from the genus, as well as all of the isolated compounds () were reported from .
View Article and Find Full Text PDFXanthine oxidase (XO) has been widely recognized as a pivotal enzyme in developing hyperuricemia, primarily contributing to the excessive production of uric acid during purine metabolism in the liver. One of the standard treatment approaches involves reducing uric acid levels by inhibiting XO activity. In this study, the leaf extract of , traditionally used in folk medicine, was found to inhibit XO activity in the ethyl acetate and butanol fractions at a concentration of 100 µg/mL, their values were 78.
View Article and Find Full Text PDFIn the nature, species are normal inhabitants and can be observed in a wide variety of vertebrates. In humans, especially for cancer patients who fall prey to opportunistic pathogens, this group of susceptible multi-drug resistant and biofilm-forming yeasts, are among the commonest ones. In this study, species in 76 oral lesion samples from Vietnamese nasopharyngeal-cancer patients were isolated, morphologically identified using CHROMagar™, germ tube formation, and chlamydospore formation tests, and molecularly confirmed by PCR-RFLP.
View Article and Find Full Text PDFBreast cancer is the most common type of lethal cancer in women globally. Women have a 1 in 8 chance of developing breast cancer in their lifetime. Among the four primary molecular subtypes (luminal A, luminal B, HER2+, and triple-negative), HER2+ accounts for 20-25 % of all breast cancer and is rather aggressive.
View Article and Find Full Text PDFLung cancer has been the most common and the leading cause of cancer deaths globally. Besides clinicopathological observations and traditional molecular tests, the advent of robust and scalable techniques for nucleic acid analysis has revolutionized biological research and medicinal practice in lung cancer treatment. In response to the demands for minimally invasive procedures and technology development over the past decade, many types of multi-omics data at various genome levels have been generated.
View Article and Find Full Text PDFComput Struct Biotechnol J
February 2023
Lung adenocarcinoma (LUAD) is the most prevalent lung cancer and one of the leading causes of death. Previous research found a link between LUAD and Aldehyde Dehydrogenase 2 (ALDH2), a member of aldehyde dehydrogenase gene (ALDH) superfamily. In this study, we identified additional useful prognostic markers for early LUAD identification and targeting LUAD therapy by analyzing the expression level, epigenetic mechanism, and signaling activities of ALDH2 in LUAD patients.
View Article and Find Full Text PDFAsian children are increasingly being diagnosed with type 1 diabetes (T1D) or type 2 diabetes (T2D), and the presence of coexisting islet autoimmune antibodies complicate diagnosis. Here, we aimed to determine the prevalence of islet cell autoantibodies (ICAs) and glutamic acid decarboxylase 65 autoantibodies (GADAs) in children with T1D versus T2D living in Vietnam. This cross-sectional study included 145 pediatric patients aged 10.
View Article and Find Full Text PDFComput Struct Biotechnol J
April 2022
Over the past decade, polypharmacy instances have been common in multi-diseases treatment. However, unwanted drug-drug interactions (DDIs) that might cause unexpected adverse drug events (ADEs) in multiple regimens therapy remain a significant issue. Since artificial intelligence (AI) is ubiquitous today, many AI prediction models have been developed to predict DDIs to support clinicians in pharmacotherapy-related decisions.
View Article and Find Full Text PDFGlioblastoma multiforme (GBM) is the most malignant brain tumor in the world, only 25% of GBM patients were alive one year after diagnosis. Although Temozolamide combined with radiation therapy more effectively prolonged the survival rate than radiation alone, the overall survival rate is still dismal. Therefore, a new therapeutic strategy is urgently needed.
View Article and Find Full Text PDFis traditionally used for treating diseases, including joint pain, fever, anemia, and allergies. It is also a potential resource of natural flavonoid derivatives, which represents major constituents of this plant. This study aimed to isolate the major compounds from radix, develop and validate the HPLC-PDA method to determine their contents, and optimize its extraction.
View Article and Find Full Text PDFSeven new polyhydroxylated oleanane-type triterpene saponins, arenarosides A-G (-), together with four known compounds, were isolated from an ethanol extract of the aerial parts of the Vietnamese plant . The chemical structures of the newly isolated oleanane saponins were elucidated on the basis of spectroscopic and spectrometric analysis, especially 2D NMR and HRMS. Biological evaluation revealed that , , , and showed moderate activities against four human cancer cell lines (A549, HTC116, PC3, and RT112) with IC values of 6.
View Article and Find Full Text PDFIn folk medicine, Gagnep. has been used to treat diseases related to inflammation, ulcers, and cancer. There are no reports concerning the chemical components and bioactivities of ; thus, this study aims to explore the phytochemicals, quantify the main compounds, and test the anticancer activity of isolates from Dried rhizomes were extracted with 95% ethanol and, then, partitioned, fractionated, and isolated.
View Article and Find Full Text PDFSix new dammarane-type saponins, gypenosides CP1-6 (), along with 19 known compounds ⁻, were isolated and characterized from the aerial parts of . Among these compounds, eight dammarane-type saponins, , , , , , , , and exhibited the greatest antiproliferative effects against two human tumor cell lines (A549 and HepG2).
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