Publications by authors named "Meng-Ting Tang"

Background: Metastasis is the main reason leading to death in colorectal cancer (CRC) and about 25% of CRC patients developed metastasis when first diagnosed. Thus, unveiling biomarkers of CRC metastasis is of great significance.

Aim: To reveal biomarkers of CRC metastasis.

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Sargassum fusiforme polysaccharide (SFP) is a kind of biologically active macromolecule with biological functions. In this study, oxidative stress and high-fat HepG2 cell models were established to investigate its lipid-lowering activity and mechanism of action. It was found that SFP and its two isolated fractions had antioxidant effects on the cells.

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Ethnopharmacological Relevance: As prevalent acute respiratory condition in clinical practice, acute lung injury has a quick start and severe symptoms which can harm patients physically. Chaihu Qingwen granules (CHQW) is a classic formula for the treatment of respiratory diseases. Clinical observation shows that CHQW has good efficacy in treating colds, coughs, and fevers.

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The biological activities of Sargassum fusiforme polysaccharides (SFP) were affected significantly by the extraction method. In order to screen the optimum extraction technology for SFP with high yield and biological activities, six extraction methods, including hot water extraction (HWE), acid-assisted extraction (ACAE), alkali-assisted extraction (ALAE), ultrasonic-assisted extraction (UAE), microwave-assisted extraction (MAE) and hydrogen peroxide/ascorbic acid-assisted extraction (HAE) were compared for the preparation of SFP. Based on the yield and in vitro antioxidant activity of the crude polysaccharides obtained by the six extraction methods, HAE was selected for the extraction of SFP.

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Article Synopsis
  • The study investigates the effects of exopolysaccharides (EPS) from Lactobacillus rhamnosus ZFM231 on mice with inflammatory bowel disease, showing significant improvements in weight, colonic health, and gut microbiota diversity.
  • EPS treatment resulted in favorable changes in short-chain fatty acid levels and an increase in anti-inflammatory factors, while reducing pro-inflammatory factors in the colons of treated mice.
  • The findings suggest that EPS has potential for use in functional foods to help manage ulcerative colitis, highlighting its probiotic benefits.
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In order to better utilize the citrus pectin (CP) resource, the crude citrus pectin (CCP), obtained from the citrus fruit canning processing waste water, was purified by cellulose DEAE-52 column, providing neutral polysaccharide CP0 and two acidic polysaccharides (CP1 and CP3). CP1 had the highest yield among the three fractions, being 44.29%.

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Article Synopsis
  • A new ligand called 9-AQH was synthesized, leading to the creation of four metal complexes, with one (Cu complex 3) demonstrating significant anticancer activity, particularly due to the presence of copper(I).
  • In vitro studies indicated that complex 3 could catalyze hydroxyl free radicals and showed a unique reaction mechanism involving redox properties of copper, contributing to its anticancer effects without obvious Cu(II) formation.
  • The anticancer effect of complex 3 was primarily through inducing apoptosis in MGC-803 cancer cells via the mitochondrial pathway, while also suggesting complex interactions with autophagy processes, needing further exploration.
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Two new copper(II) complexes, 9-PMAH-Cu (1) and 9-FPMAH-Cu (2), of anthrahydrazone were synthesized and structurally characterized, in which 9-FPMAH (9-(4'-trifluoromethyl)-pyrimidine anthrahydrazone) is the 4'-CF derivative of 9-PMAH (9-pyrimidine anthrahydrazone). Both complexes 1 and 2 showed similar intercalative binding modes towards DNA and might compete with the typical DNA intercalator, GelRed, in the same binding site. They could also act as topoisomerase (type I) suppressor to effectively inhibit its activity, in which complex 1 was more effective than 2.

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