Publications by authors named "Xincai Hao"

To investigate the preliminary structural characteristics and functions of polysaccharides from Radix Tinosporae, a neutral α-glucan polysaccharide, RTP-W with a molecular weight of 14.248 kDa was obtained. The potential therapeutic effect of RTP-W on hepatocellular carcinoma was investigated in vivo.

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To investigate the impact and potential mechanisms of extracts from different parts of Liparis nervosa on neuroinflammation by lipopolysaccharide(LPS)-induced BV-2 microglial cells. The materials of L. nervosa were subjected to crushing, ethanol extraction, and concentration to obtain an alcohol extract.

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Hyparillums A (1) and B (2), two previously unidentified polycyclic polyprenylated acylphloroglucinols (PPAPs) with intricate architectures, were isolated from Hypericum patulum Thunb. Hyparillum A was the first PPAP with eight-carbon rings based on an unprecedented 6/6/5/6/6/5/6/4 octocyclic system featuring a rare heptacyclo[10.8.

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In China, Russia, Mongolia, Japan, North Korea, and Mexico, L. () is used as an edible plant. Up to now, over 234 metabolites, including phenolic acids, flavonoids, triterpenes, phytosterols, and alkaloids, among others, have been identified.

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Autoimmune hepatitis is a serious hepatic disorder with unknown nosogenesis, and natural products have been deemed to be one of the most significant sources of new drugs against this disease. Prenyllongnols A-D (-), four undescribed prenylated acylphloroglucinols, were isolated from . Compounds - exhibited remarkable immunosuppressive activities in murine splenocyte proliferation under the induction of concanavalin A (Con A), and IC values ranged from 2.

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Spectasterols A-E (-), aromatic ergosterols with unique ring systems, were isolated from . Compounds and possess a 6/6/6/5/5 ring system with an additional cyclopentene, while and have an uncommon 6/6/6/6 ring system generated by the D-ring expansion via 1,2-alkyl shifts. Compound exhibited cytotoxic activity (IC 6.

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To investigate the effects of Linggui Zhugan Decoction on mitochondrial and oxidative damage in rats with chronic heart failure after myocardial infarction and the related mechanisms. Chronic heart failure after myocardial infarction was established by coronary artery ligation. Heart failure rats were randomly divided into three groups: Model group ( = 11), Linggui Zhugan Decoction group ( = 12), and captopril group ( = 11).

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-resveratrol (RES) exhibits a wide range of biological activities. Various methodological approaches have been established to improve the pharmacokinetic properties of RES. Moreover, additional studies are required to support clinical application.

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Cervical cancer is the second most common cancer in women. Despite advances in cervical cancer therapy, tumor recurrence and metastasis remain the leading causes of mortality. High expression of BMI1 is significantly associated with poor tumor differentiation, high clinical grade, and poor prognosis of cervical cancer, and is an independent prognostic factor in cervical carcinoma.

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High glucose (HG)-induced nucleotide-binding and oligomerization (NACHT) domain, leucine-rich repeat (LRR), and pyrin domain (PYD)-containing protein 3 (NLRP3) inflammasome activation leads to diabetic neuropathic pain. We recently showed that salidroside could suppress NLRP3 inflammasome activation in hepatocytes exposed to HG. The aim of this study was to evaluate the analgesic effect of salidroside on diabetic rats and to explore its underlying mechanisms.

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Two novel cytochalasans, armochaetoglasin J () and armochaetoglasin K (), along with 14 known analogues (-) were isolated from Their structures were elucidated by HRESIMS, NMR spectroscopy, single-crystal X-ray crystallography, and ECD spectra. Armochaetoglasins J and K were found to be inactive against the HepG2, HT-29, K562, HL-60, and A549 cancer cell lines.

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Article Synopsis
  • Nine new monoterpene indole alkaloids, named rauvomitorine A-I, were discovered in Rauvolfia vomitoria, including unique structural types that hadn’t been identified before.
  • Extensive analysis techniques like spectroscopy and X-ray diffraction were used to determine their structures, particularly highlighting rauvomitorine A, which features a novel alkaloid framework.
  • The study evaluated the isolated alkaloids for their potential as acetylcholinesterase inhibitors, revealing some to have promising activity against cancer cell lines, especially noting the importance of suaveoline-type alkaloids in this area for possible drug development.
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Three previously undescribed compounds, including a meroterpenoid, guignardone T (1), and two ophiobolin-type sesterterpenoids, maydispenoids A and B (2 and 3), along with four known compounds (4-7), were isolated from the phytopathogenic fungus Bipolaris maydis collected from Anoectochilus roxburghii (Wall.) Lindl leaves. The structures of all undescribed compounds were elucidated by spectroscopic analysis, electronic circular dichroism (ECD) calculations and single-crystal X-ray diffraction.

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Light is essential for plant organogenesis and development. Light-regulated shoot morphogenesis has been extensively studied; however, the mechanisms by which plant roots perceive and respond to aboveground light are largely unknown, particularly because the roots of most terrestrial plants are usually located underground in darkness. To mimic natural root growth conditions, we developed a root-covered system (RCS) in which the shoots were illuminated and the plant roots could be either exposed to light or cultivated in darkness.

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Two undescribed prenylated quinolinone alkaloids, aspoquinolones E and F, and three undescribed prenylated isoindolinone alkaloids aspernidines F-H, were isolated from the fungus Aspergillus nidulans. Their structures and configurations were elucidated based on spectroscopic analyses and ECD spectra. Aspoquinolones E and F possess a C moiety with an unusual 2,2,4-trimethyl-3oxa-bicyclo[3.

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(Japanese knotweed, also known as Huzhang in Chinese), a plant that produces bioactive components such as stilbenes and quinones, has long been recognized as important in traditional Chinese herbal medicine. To better understand the biological features of this plant and to gain genetic insight into the biosynthesis of its natural products, we assembled a draft genome of using Illumina sequencing technology. The draft genome is ca.

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A preliminary phytochemical investigation on the EtOAc extracts of the fungus sp. TJ403-B1 resulted in the identification of 12 ophiobolin-type phytotoxins (-), including nine new ones, termed bipolaricins A-I (-). The structures of - were elucidated via spectroscopic data (including HRESIMS and 1D and 2D NMR) and single-crystal X-ray diffraction (Cu Kα) analyses.

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Alterbrassinoids A-D (-), the first examples of fusicoccane-derived diterpenoid dimers furnished by forming an undescribed C-12-C-18' linkage, were isolated from modified cultures of . Compounds and represent unprecedented heterodimers, whereas and represent unprecedented homodimers, and also features an undescribed anhydride motif. Their structures were assigned via spectroscopic methods, electronic circular dichroism calculations, and single-crystal X-ray diffraction.

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Bioactive gibberellins (GAs) play multiple roles in plant development and stress responses. GA2-oxidases (GA2oxs) are a class of 2-oxoglutarate-dependent dioxygenases that regulate the deactivation of bioactive GAs. In this study, we investigated the phylogeny and domain structures of the seven GA2ox genes present in the Arabidopsis thaliana genome.

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The study determined the chemical constituents and anti-inflammatory effects of leaf oil from (CS-LO) that has been used in folk medicine to treat various symptoms including inflammation. The anti-inflammatory effects of the oil were evaluated by LPS-stimulated RAW264.7 cells and the Carr-induced hind mouse paw edema model, respectively.

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A rare depsipeptide, chaetomiamide A (1), together with two known diketopiperazines (2, 3) were isolated from the cultures of endophytic fungus Chaetomium sp., which was isolated from the root of Cymbidium goeringii. Compound 1 represents a rare skeleton with a 13-membered ring system.

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Ethnopharmacological Relevance: The seed of Entada phaseoloides (L.) Merr. (Entada phaseoloides) has been long used as a folk medicine for the treatment of Diabetes mellitus by Chinese ethnic minorities.

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