Publications by authors named "Renjing Yang"

Jacaranone derived from , a traditional Chinese medicine used for centuries, has been documented to exhibit anti-inflammatory and antiproliferative properties in various tumor cell lines. However, the mechanism of action and relationship between inflammation and apoptosis induced by jacaranone remain inadequately elucidated. In this study, the targets of jacaranone and cancer were identified from various databases, while potential targets and pathways were predicted through the analysis of the protein-protein interactions (PPI) network and pathway enrichment.

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  • A novel two-stage carbon sequestration strategy showed feasibility through pilot-scale cultivation, leading to a significant increase in astaxanthin production and efficiency in harvesting microalgae.
  • The introduction of sedimentation rate (SR) measurements indicated an impressive 82.2% SR after 2 hours, optimizing microalgae culture methods.
  • The use of a 40 L tubular photobioreactor resulted in high carbon sequestration rates and low production costs for astaxanthin-enriched microalgae, suggesting promising advancements for carbon capture and astaxanthin market development.
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  • Differential scanning fluorimetry (DSF) is a technique used to evaluate protein stability and interactions but is limited by detergents affecting results.
  • The researchers developed a new method called fluorescence-labeled DSF (FL-DSF), which effectively tracks protein denaturation and works well in the presence of detergents.
  • A novel mathematical model was introduced to better characterize protein denaturation and ligand binding, leading to successful binding affinity evaluations and the discovery of promising ligands for key proteins.
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Vernonia amygdalina Delile is generally used as green vegetables for cuisine in Nigeria and health tea or products in southeast of china. It was also used as folk medicine for the treatment of anti-helminth, febrifuge, digestive tonic and wounds. In this study, eleven undescribed phytosterols (1-2, 4-12) and six known analogues (3, 13-17) were isolated from the stems of V.

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The phytochemical assessment of Vernonia amygdalina resulted in the isolation and identification of seven undescribed bisabolane-type sesquiterpenes designated amygdanoids A-G and one known analogue. This is the first report of this type of sesquiterpene from V. amygdalina.

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Thirteen lignans were isolated from 60% ethanol extract of Agrimonia pilosa by column chromatography over silica gel, ODS, and MCI and preparative high performance liquid chromatography(HPLC). Their chemical structures were identified by physiochemical properties and spectral data as(7S,8S)-threo-4,7,9,9'-tetrahydroxy-3,3',5'-trimethoxy-8-O-4'-neolignan(1),(+)-4,9,9'-trihydroxy-3-methoxy-3',7-epoxy-8,4'-oxyneolignan(2), dihydrodehydro-diconiferyl alcohol(3), 4,9,9'-trihydroxy-3,3',5-trimethoxy-4',7-epoxy-8,5'-neolignan(4),(-)-secoisolariciresinol(5), 4,7,9,9'-tetrahydroxy-3,3',5'-trimethoxy-8-O-4'-neolignan(6),(+)-isolariciresinol(7), 4,7,9,9'-tetrahydroxy-3,3'-dimethoxy-8-O-4'-neolignan(8), burselignan(9),(-)-evofolin B(10), icariol A2(11), ciwujiatone(12), and(+)-4″,4-dihydroxy-3,3',3″,3,5,5'-hexamethoxy-7,9';7',9-diepoxy-4,8″;4',8-bisoxy-8,8'-dineolignan-7″,7,9″,9-tetraol(13). Compound 1 was a new compound, and compounds 1-13 were isolated from Agrimonia plant for the first time.

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Two undescribed phenolic glycosides, trochinenols B and C (1 and2), together with four known analogues (3-6), were isolated from the functional tea Bunge and their α-glucosidase inhibitory kinetics and mechanisms were investigated. It was found that 1 inhibited α-glucosidase in a noncompetitive manner with an IC value of 25.96 μM, while 3 showed a notable inhibitory effect against α-glucosidase in an uncompetitive manner with an IC value of 3.

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Ursodeoxycholic acid (UDCA) is a first-line clinical drug for the treatment of liver diseases. U12, a derivative of UDCA, showed effective anti-hepatoma activities in previous works. However, the low polarity and large doses limited the druglikeness of U12.

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