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1.
Fitoterapia ; 175: 105965, 2024 Jun.
Article in English | MEDLINE | ID: mdl-38631599

ABSTRACT

Four new diterpenoids, including three secolathyrane diterpenoids (1-3) and one lathyrane diterpenoid (4), together with seven known diterpenoids, were obtained in the shelled seeds of Euphorbia lathyris. In particular, 1-3 possess a rare split ring structure, and currently only one compound with the same skeleton has been identified in E. lathyris. Compound 4 furnishes an unprecedented oxygen bridge structure. The structures were identified using various spectral techniques, including NMR, HR-ESI-MS, single-crystal X-ray diffraction and calculated electronic circular dichroism (ECD). The biosynthetic pathway of 1-4 was inferred. Furthermore, the cytotoxic activities of all compounds (1-11) were measured on three human tumor cells. New compounds 2 and 3 showed moderate cytotoxic activities against U937 cells with IC50 values of 22.18 and 25.41 µM, respectively.


Subject(s)
Antineoplastic Agents, Phytogenic , Diterpenes , Euphorbia , Phytochemicals , Seeds , Euphorbia/chemistry , Diterpenes/isolation & purification , Diterpenes/pharmacology , Diterpenes/chemistry , Humans , Molecular Structure , Seeds/chemistry , Antineoplastic Agents, Phytogenic/pharmacology , Antineoplastic Agents, Phytogenic/isolation & purification , Phytochemicals/pharmacology , Phytochemicals/isolation & purification , Cell Line, Tumor , China , U937 Cells
2.
Plant Dis ; 2024 Apr 08.
Article in English | MEDLINE | ID: mdl-38587792

ABSTRACT

Euphorbia lathyris L. is a biennial herb in the Euphorbiaceae that has been used as a medicinal plant. It is distributed or cultivated worldwide, and the seeds of E. lathyris are the main source of ingenol, which is the precursor of Picato, the first medicine approved by USFDA for the treatment of solar keratosis (Abramovits et al. 2013). However, the production of E. lathyris can be severely hampered by the occurrence of plant diseases. Between 2020-2022 (specifically in October-November of each year), anthracnose-like symptoms were observed on E. lathyris in fields (E 118°49'50″, N 32°3'33″) in Nanjing, Jiangsu Province, China. The incidence of E. lathyris with disease symptoms was between 25%-30% (n = 100). The lesions on the leaves were evident initially as dark brown spots, which expanded into larger necrotic spots, finally resulting in leaves withering and dropping off. In severe cases, stem wilting was also observed. To determine the causal agent, we collected diseased leaf samples (n = 20) from different E. lathyris plants in the field (~ 1800 m2). After cleaning, the junctions of the diseased and healthy parts were excised and sterilized in 75% ethanol for 20-25 seconds, and rinsed with sterile water. After that, they were transferred onto potato sucrose agar (PSA) plates and placed at 25℃ for 3-4 days, until fungal growth was evident. The fungus was purified by recovering single conidia and growing them on PSA (Hu et al. 2015). A consistent fungal colony, based on morphological characteristics, was recovered from 17 samples. The colony color was initially white, green in the middle, and gradually changed into gray green as the colony matured. Conidia were transparent and cylindrical (22-28 µm × 7-9 µm, n = 50). Five loci informative (ITS, TUB, ACT, GAPDH, and CHS-1) (Weir et al. 2012) for Colletotrichum spp. identification were sequenced from two isolates ELC-1 and ELC-2 obtained from different plant individuals. Compared with a reference isolate (Colletotrichum gloeosporioides ZH3), the GAPDH, CHS-1, and TUB2 sequences of ELC-1 and ELC-2 showed 95% (263 bp out of 275 bp), 98% (295 bp out of 299 bp), and 99% (711 bp out of 712 bp and 717 bp out of 719 bp) similarity, respectively. The ITS sequence identities were 100% (577 bp out of 577 bp) and 99% (594 bp out of 597 bp), while the ACT sequence identities were 100% (281 bp out of 281 bp) and 98% (279 bp out of 284 bp). All sequences have been deposited in Genbank database (OR865865-OR865866 and OR873625-OR873632). After performing phylogenetic analysis with Mega 11, the pathogen was confirmed as C. gloeosporioides. To fulfil Koch's postulates, we sprayed six-week-old healthy plants with a conidia suspension of C. gloeosporioides (106 spores/mL) or sterile water (serve as control). The inoculated plants were placed at 25℃, 100% relative humidity, and 12-h photoperiod (Zhang et al. 2021). Six plants were inoculated for each treatment, and the experiment was repeated three times. After 6-8 days, the plants inoculated with C. gloeosporioides showed similar symptoms to those observed on diseased plants in the field, while the control plants remained healthy and free of disease. The pathogens were then re-isolated and identified as C. gloeosporioides. To our knowledge, this is the first report of C. gloeosporioides causing anthracnose on E. lathyris. Anthracnose may cause significant yield losses in E. lathyris production, and our results will provide experimental and theoretical basis for the management of the disease.

3.
Molecules ; 29(5)2024 Feb 28.
Article in English | MEDLINE | ID: mdl-38474571

ABSTRACT

The Euodia genus comprises numerous untapped medicinal plants that warrant thorough evaluation for their potential as valuable natural sources of herbal medicine or food flavorings. In this study, untargeted metabolomics and in vitro functional methods were employed to analyze fruit extracts from 11 significant species of the Euodia genus. An investigation of the distribution of metabolites (quinolone and indole quinazoline alkaloids) in these species indicated that E. rutaecarpa (Euodia rutaecarpa) was the most widely distributed species, followed by E. compacta (Euodia compacta), E. glabrifolia (Euodia glabrifolia), E. austrosinensis (Euodia austrosinensis), and E. fargesii (Euodia fargesii). There have been reports on the close correlation between indole quinazoline alkaloids and their anti-tumor activity, especially in E. rutaecarpa fruits which exhibit effectiveness against various types of cancer, such as SGC-7901, Hela, A549, and other cancer cell lines. Additionally, the E. rutaecarpa plant contains indole quinazoline alkaloids, which possess remarkable antibacterial properties. Our results offer novel insights into the utilization of Euodia resources in the pharmaceutical industry.


Subject(s)
Alkaloids , Evodia , Plants, Medicinal , Quinolones , Rutaceae , Humans , Plant Extracts , Indole Alkaloids , HeLa Cells , Quinazolines
5.
Int J Mol Sci ; 25(2)2024 Jan 22.
Article in English | MEDLINE | ID: mdl-38279341

ABSTRACT

Universal stress proteins (USPs) play an important regulatory role in responses to abiotic stress. Most of the research related to USPs so far has been conducted on plant models such as Arabidopsis (Arabidopsis thaliana), rice (Oryza sativa L.), and cotton (Gossypium hirsutum L.). The potato (Solanum tuberosum L.) is one of the four major food crops in the world. The potato is susceptible to mechanical damage and infection by pathogenic fungi during transport and storage. Deoxynivalenol (DON) released by Fusarium can seriously degrade the quality of potatoes. As a result, it is of great significance to study the expression pattern of the potato StUSP gene family under abiotic stress conditions. In this study, a total of 108 USP genes were identified from the genome of the Atlantic potato, divided into four subgroups. Based on their genetic structure, the physical and chemical properties of their proteins and other aspects of their biological characteristics are comprehensively analyzed. Collinear analysis showed that the homologous genes of StUSPs and four other representative species (Solanum lycopersicum, Arabidopsis, Oryza sativa L., and Nicotiana attenuata) were highly conserved. The cis-regulatory elements of the StUSPs promoter are involved in plant hormones, environmental stress, mechanical damage, and light response. RNA-seq analysis showed that there are differences in the expression patterns of members of each subgroup under different abiotic stresses. A Weighted Gene Coexpression Network Analysis (WGCNA) of the central gene showed that the differential coexpression gene is mainly involved in the plant-pathogen response process, plant hormone signal transduction, and the biosynthesis process of secondary metabolites. Through qRT-PCR analysis, it was confirmed that StUSP13, StUSP14, StUSP15, and StUSP41 may be important candidate genes involved in the response to adversity stress in potatoes. The results of this study provide a basis for further research on the functional analysis of StUSPs in the response of potatoes to adversity stress.


Subject(s)
Arabidopsis , Solanum tuberosum , Trichothecenes , Solanum tuberosum/genetics , Solanum tuberosum/metabolism , Heat-Shock Proteins/metabolism , Arabidopsis/genetics , Arabidopsis/metabolism , Stress, Physiological/genetics , Plant Growth Regulators/metabolism , Plant Proteins/metabolism , Phylogeny , Gene Expression Profiling/methods , Gene Expression Regulation, Plant
6.
Molecules ; 28(22)2023 Nov 15.
Article in English | MEDLINE | ID: mdl-38005337

ABSTRACT

Aging and age-related diseases are important study topics due to their associations with progressive physiological damage to genes, cells, tissues, and the entire organism, which ultimately affects the functional efficiency of organs. Lycium ruthenicum Murr. is a functional food that is known for its high contents of anthocyanins and spermidines, both of which have been demonstrated to have positive effects on anti-aging activity and anti-oxidation. In this study, we used HPLC-MS to analyze the constituents of L. ruthenicum Murr. Extract (LRM) and investigated their potential mechanism for exerting antioxidative effects in D-galactose (D-Gal) aging model mice. LRM (25 mg/kg, 50 mg/kg, and 100 mg/kg) improved cognitive function in D-Gal-treated mice, as shown by reduced escape latencies and increased platform crossings in behavioral tests. We measured the contents of lipid peroxidation (LPO) and malondialdehyde (MDA) and the enzyme activities of the antioxidant enzymes superoxide dismutase (SOD) and glutathione peroxidase (GSH-Px) in mice serum and brain after 6 weeks of D-Gal treatment. LRM decreased the contents of LPO and MDA and increased the enzyme activities of SOD and GSH-Px, indicating the protection effect of LRM against D-Gal-induced oxidative stress. Additionally, LRM can inhibit oxidative stress in cells by reducing intracellular ROS levels and restoring mitochondrial membrane potential, thereby inhibiting paraquat (PQ)-induced cellular senescence and delaying cell aging. Therefore, LRM has the potential to be a healthcare product for the treatment of age-related diseases.


Subject(s)
Lycium , Mice , Animals , Lycium/metabolism , Anthocyanins/pharmacology , Oxidative Stress , Antioxidants/pharmacology , Glutathione Peroxidase/metabolism , Ethanol/pharmacology , Superoxide Dismutase/metabolism , Plant Extracts/pharmacology , Galactose/pharmacology , Malondialdehyde
7.
J Cancer Res Clin Oncol ; 149(12): 10505-10518, 2023 Sep.
Article in English | MEDLINE | ID: mdl-37284841

ABSTRACT

BACKGROUND: Hepatocellular carcinoma (HCC) has a high recurrence rate even after radical surgery. Postoperative adjuvant transhepatic arterial chemoembolization (PA-TACE), postoperative adjuvant hepatic arterial infusion chemotherapy (PA-HAIC), postoperative adjuvant radiotherapy (PA-RT), and postoperative adjuvant molecular targeted therapy have been demonstrated to be effective in reducing the postoperative recurrence rate. The present network meta-analysis was conducted to compare the effects of PA-TACE, PA-HAIC, PA-RT and postoperative adjuvant molecular targeted therapy on the overall survival (OS) and disease-free survival (DFS) in HCC patients after radical resection and to determine the optimal treatment strategy. METHODS: Network meta-analysis was conducted according to the Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines. PubMed, Embase, Cochrane Library, and Web of Science were used to collect eligible studies up to December 25, 2022. Studies related to PA-TACE, PA-HAIC, and postoperative adjuvant molecular targeted therapy after radical HCC resection was included. The endpoints were OS and DFS, and the effect size was determined using hazard ratio with a 95% confidence interval. R software and "gemtc" package were employed to analyze the results. RESULTS: A total of 38 studies involving 7079 patients with HCC after radical resection were ultimately enrolled to be analyzed. Four postoperative adjuvant therapy measures and two oncology indicators were evaluated. In this study, OS-related investigations validated that PA-Sorafenib and PA-RT markedly enhanced the OS rates in patients after radical resection when compared to PA-TACE and PA-HAIC. However, statistical analysis revealed no significant difference between PA-Sorafenib and PA-RT, as well as PA-TACE and PA-HAIC. In the DFS-related investigations, PA-RT demonstrated superior efficacy over PA-Sorafenib, PA-TACE, and PA-HAIC. Additionally, PA-Sorafenib displayed better efficacy than PA-TACE. Nevertheless, there was no statistical significance between PA-Sorafenib and PA-HAIC, as well as PA-TACE and PA-HAIC. We also performed a subgroup analysis of studies focusing on HCC complicated by microvascular invasion after radical resection. In terms of OS, both PA-RT and PA-Sorafenib demonstrated a noteworthy improvement over PA-TACE, whereas no statistical significance was detected between PA-RT and PA-Sorafenib. Likewise, for DFS, both PA-Sorafenib and PA-RT exhibited superior efficacy compared to PA-TACE. CONCLUSION: In patients with HCC after radical resection and a high risk of recurrence, both PA-Sorafenib and PA-RT significantly improved OS and DFS when compared to PA-TACE and PA-HAIC. Notably, PA-RT exhibited superior efficacy over PA-Sorafenib, PA-TACE, and PA-HAIC in terms of DFS. Similarly, PA-Sorafenib appeared to be more effective than PA-TACE for DFS.


Subject(s)
Carcinoma, Hepatocellular , Chemoembolization, Therapeutic , Liver Neoplasms , Humans , Carcinoma, Hepatocellular/surgery , Carcinoma, Hepatocellular/pathology , Liver Neoplasms/drug therapy , Liver Neoplasms/surgery , Sorafenib/therapeutic use , Treatment Outcome , Chemoembolization, Therapeutic/methods , Hepatectomy
8.
BMC Plant Biol ; 23(1): 297, 2023 Jun 02.
Article in English | MEDLINE | ID: mdl-37268959

ABSTRACT

BACKGROUND: Iva xanthiifolia, native to North America, is now widely distributed in northeastern China and has become a vicious invasive plant. This article aims to probe the role of leaf extract in the invasion of I. xanthiifolia. METHODS: We collected the rhizosphere soil of Amaranthus tricolor and Setaria viridis in the invasive zone, the noninvasive zone and the noninvasive zone treated with extract from I. xanthiifolia leaf, and obtained I. xanthiifolia rhizosphere soil in the invasive zone. All wild plants were identified by Xu Yongqing. I. xanthiifolia (collection number: RQSB04100), A. tricolor (collection number: 831,030) and S. viridis (collection number: CF-0002-034) are all included in Chinese Virtual Herbarium ( https://www.cvh.ac.cn/index.php ). The soil bacterial diversity was analyzed based on the Illumina HiSeq sequencing platform. Subsequently, taxonomic analysis and Faprotax functional prediction were performed. RESULTS: The results showed that the leaf extract significantly reduced the diversity of indigenous plant rhizosphere bacteria. A. tricolor and S. viridis rhizobacterial phylum and genus abundances were significantly reduced under the influence of I. xanthiifolia or its leaf extract. The results of functional prediction showed that bacterial abundance changes induced by leaf extracts could potentially hinder nutrient cycling in native plants and increased bacterial abundance in the A. tricolor rhizosphere related to aromatic compound degradation. In addition, the greatest number of sensitive Operational Taxonomic Units (OTUs) appeared in the rhizosphere when S. viridis was in response to the invasion of I. xanthiifolia. It can be seen that A. tricolor and S. viridis have different mechanisms in response to the invasion of I. xanthiifolia. CONCLUSION: I. xanthiifolia leaves material has potential role in invasion by altering indigenous plant rhizosphere bacteria.


Subject(s)
Bacteria , Rhizosphere , China , Soil , Plant Extracts , Soil Microbiology , Plant Roots/microbiology
9.
Genes (Basel) ; 14(6)2023 05 27.
Article in English | MEDLINE | ID: mdl-37372350

ABSTRACT

The NPR1 (nonexpressor of pathogenesis-related genes 1) gene is an activator of the systemic acquisition of resistance (SAR) in plants and is one of the central factors in their response to pathogenic bacterial infestation, playing an important role in plant disease resistance. Potato (Solanum tuberosum) is a crucial non-grain crop that has been extensively studied. However, the identification and analysis of the NPR1-like gene within potato have not been understood well. In this study, a total of six NPR1-like proteins were identified in potato, and phylogenetic analysis showed that the six NPR1-like proteins in Solanum tuberosum could be divided into three major groups with NPR1-related proteins from Arabidopsis thaliana and other plants. Analysis of the exon-intron patterns and protein domains of the six NPR1-like genes from potato showed that the exon-intron patterns and protein domains of the NPR1-like genes belonging to the same Arabidopsis thaliana subfamily were similar. By performing quantitative real-time PCR (qRT-PCR) analysis, we found that six NPR1-like proteins have different expression patterns in different potato tissues. In addition, the expression of three StNPR1 genes was significantly downregulated after being infected by Ralstonia solanacearum (RS), while the difference in the expression of StNPR2/3 was insignificant. We also established potato StNPR1 overexpression lines that showed a significantly increased resistance to R. solanacearum and elevated activities of chitinase, ß-1,3-glucanase, and phenylalanine deaminase. Increased peroxidase (POD), superoxide dismutase (SOD), and catalase (CAT) activities, as well as decreased hydrogen peroxide, regulated the dynamic balance of reactive oxygen species (ROS) in the StNPR1 overexpression lines. The transgenic plants activated the expression of the genes associated with the Salicylic acid (SA) defense response but suppressed the expression of the genes associated with Jasmonic acid (JA) signaling. This resulted in resistance to Ralstonia solanacearum.


Subject(s)
Arabidopsis Proteins , Arabidopsis , Ralstonia solanacearum , Solanum tuberosum , Ralstonia solanacearum/physiology , Solanum tuberosum/genetics , Solanum tuberosum/microbiology , Arabidopsis/genetics , Arabidopsis/microbiology , Phylogeny , Plants, Genetically Modified , Arabidopsis Proteins/metabolism
10.
Int J Mol Sci ; 24(9)2023 Apr 29.
Article in English | MEDLINE | ID: mdl-37175760

ABSTRACT

Phytophthora infestans poses a serious threat to potato production, storage, and processing. Understanding plant immunity triggered by fungal elicitors is important for the effective control of plant diseases. However, the role of the potato stress response to Fusarium toxin deoxynivalenol (DON)-induced stress is still not fully understood. In this study, the metabolites of DON-treated potato tubers were studied for four time intervals using UPLC-MS/MS. We identified 676 metabolites, and differential accumulation metabolite analysis showed that alkaloids, phenolic acids, and flavonoids were the major differential metabolites that directly determined defense response. Transcriptome data showed that differentially expressed genes (DEGs) were significantly enriched in phenylpropane and flavonoid metabolic pathways. Weighted gene co-expression network analysis (WGCNA) identified many hub genes, some of which modulate plant immune responses. This study is important for understanding the metabolic changes, transcriptional regulation, and physiological responses of active and signaling substances during DON induction, and it will help to design defense strategies against Phytophthora infestans in potato.


Subject(s)
Phytophthora infestans , Solanum tuberosum , Transcriptome , Solanum tuberosum/metabolism , Chromatography, Liquid , Tandem Mass Spectrometry , Flavonoids/metabolism , Metabolome , Plant Diseases/microbiology , Phytophthora infestans/genetics , Gene Expression Regulation, Plant
11.
Biochem Biophys Res Commun ; 667: 111-119, 2023 07 30.
Article in English | MEDLINE | ID: mdl-37216826

ABSTRACT

Nasopharyngeal carcinoma (NPC) is a highly recurrent and metastatic malignant tumor affecting a large number of individuals in southern China. Traditional Chinese herbal medicine has been found to be a rich source of natural compounds with mild therapeutic effects and minimal side effects, making them increasingly popular for treating various diseases. Trifolirhizin, a natural flavonoid derived from leguminous plants, has gained significant attention for its therapeutic potential. In this study, we confirmed that trifolirhizin could effectively inhibit the proliferation, migration and invasion of nasopharyngeal carcinoma 6-10B and HK1 cells. Furthermore, our findings demonstrated that trifolirhizin achieves this by suppressing the PI3K/Akt signaling pathway. The findings of the present study provides a valuable perspective on the potential therapeutic applications of trifolirhizin for the treatment of nasopharyngeal carcinoma.


Subject(s)
Nasopharyngeal Neoplasms , Proto-Oncogene Proteins c-akt , Humans , Nasopharyngeal Carcinoma/metabolism , Proto-Oncogene Proteins c-akt/metabolism , Phosphatidylinositol 3-Kinases/metabolism , Nasopharyngeal Neoplasms/metabolism , Cell Line, Tumor , Cell Movement , Signal Transduction , Cell Proliferation , Gene Expression Regulation, Neoplastic
12.
Biomaterials ; 291: 121865, 2022 12.
Article in English | MEDLINE | ID: mdl-36332287

ABSTRACT

OBJECTIVE: While lipid-lowering drugs have become a mainstay of clinical therapy these treatments only slow the progression of the disease and can have side effects. Thus, new treatment options are needed to supplement the effects of lipid lowering therapy for treating atherosclerosis. We examined the use of an inexpensive and widely available marine polysaccharide rhamnan sulfate as an oral therapeutic for limiting vascular inflammation and atherosclerosis. METHODS AND RESULTS: We found rhamnan sulfate enhanced the barrier function of endothelial cells, preventing the deposition of LDL and maintaining barrier function even in the presence of glycocalyx-degrading enzymes. Rhamnan sulfate was also found to bind directly to FGF-2, PDGF-BB and NF-κB subunits with high affinity. In addition, rhamnan sulfate was a potent inhibitor of NF-κB pathway activation in endothelial cells by TNF-α. We treated ApoE-/- mice with a high fat diet for 4 weeks and then an addition 9 weeks of high fat diet with or without rhamnan sulfate. Rhamnan sulfate reduced vascular inflammation and atherosclerosis in both sexes of ApoE-/- mice but had a stronger therapeutic effect in female mice. Oral consumption of rhamnan sulfate induced a significant decrease in cholesterol plasma levels in female mice but not in male mice. In addition, there was a marked reduction in inflammation for female mice in the liver and aortic root in comparison to male mice. CONCLUSIONS: Rhamnan sulfate has beneficial effects in reducing inflammation, binding growth factors and NF-κB, enhancing endothelial barrier function and reducing atherosclerotic plaque formation in ApoE-/- mice.


Subject(s)
Atherosclerosis , Plaque, Atherosclerotic , Male , Female , Mice , Animals , Plaque, Atherosclerotic/drug therapy , NF-kappa B/metabolism , Endothelial Cells/metabolism , Sulfates , Atherosclerosis/drug therapy , Atherosclerosis/metabolism , Apolipoproteins E/metabolism , Inflammation/drug therapy , Inflammation/metabolism , Mice, Inbred C57BL
13.
Chem Biodivers ; 19(11): e202200531, 2022 Nov.
Article in English | MEDLINE | ID: mdl-36208060

ABSTRACT

Cyperus esculentus is cultivated as a crop plant due to its edible and oily tubers (tiger nut). However, little is known about the phytochemicals and bioeffects of the leaves. This study was conducted to identify and quantify the chemical constituents of C. esculentus leaves and evaluate their bioactivities. By liquid chromatography-mass spectrometry, 30 compounds including flavan-3-ols, caffeic acid derivatives, and flavones, were identified from the leaves. The quantitative analysis revealed that gallocatechin (8), procyanidin B1 (15), catechin (16), chlorogenic acid (19), orientin (30), and luteolin 7-O-glucuronide (31) are the major chemical constituents of C. esculentus leaves. The contents of these six chemical constituents in the leaves collected in September in Hohhot, China, reached to 1460.85±7.66, 10178.77±302.65, 1048.35±17.37, 1722.15±26.13, 5318.62±277.16, and 1526.54±11.95 µg, respectively, in one gram of the dried leaves. The leaf extract (CELE) showed strong antioxidant activity in vitro, with compounds 8, 15, and 19 contributing the most. CELE showed significant protection against the agricultural fungicide tebuconazole-induced developmental toxicity and hepatotoxicity in zebrafish.


Subject(s)
Chemical and Drug Induced Liver Injury , Cyperus , Fungicides, Industrial , Animals , Cyperus/chemistry , Fungicides, Industrial/toxicity , Zebrafish , Antioxidants/pharmacology , Plant Extracts/chemistry , Plant Leaves/chemistry
14.
J Food Sci ; 87(11): 4905-4916, 2022 Nov.
Article in English | MEDLINE | ID: mdl-36303405

ABSTRACT

The flavan-3-ols of 10 primarily plant food byproducts, including Muscat Hamburg grape seed, hawthorn sarcocarp, litchi pericarp, cocoa bean, peanut skin, lotus seedpod, Xinyang Maojian green tea, Cinnamomi cortex, Sargentodoxa cuneata stem, and Cyperus esculentus, leaves were analyzed. Ultrahigh-performance liquid chromatography-triple quadrupole mass spectrometry was used for the analysis. Cyperus esculentus leaves contained a high amount of procyanidin B1 (198.9 mg/100 g), second only to Muscat Hamburg grape seed (292.9 mg/100 g). Unlike grape seed that contained several procyanidin B isomers with very similar retention times, C. esculentus leaves contained primarily procyanidin B1 with few isomers. Procyanidin B1 was enriched in the ethyl acetate fraction of a 70% methanol extract of C. esculentus leaves and purified at 95% purity by two runs of open column chromatography. Direct chromatography of the plant extract on octadecylsilane and Sephadex LH20 open columns improved the yield of the resultant leaf procyanidin B1 (95% purity) to 0.21‰. The present research demonstrated that the leaves of C. esculentus, byproducts of tigernut, are ideal plant sources for isolating and providing high-purity procyanidin B1. PRACTICAL APPLICATION: Procyanidin B1 has a broad range of health benefits. Cyperus esculentus is cultivated in many countries with nearly 6190 square hectares (hm2 ) in the Spanish Mediterranean region in 2020-2021 and over 16,700 hm2 in China in recent years, primarily for its tubers. The byproducts, the leaves of C. esculentus, contain high levels of procyanidin B1, with few isomers that interfere with its isolation and purification. Thus, the leaves of this plant provide a viable source for preparing high-purity procyanidin B1.


Subject(s)
Crataegus , Cyperus , Cyperus/chemistry , Plant Extracts/chemistry , Antioxidants
15.
Molecules ; 27(18)2022 Sep 06.
Article in English | MEDLINE | ID: mdl-36144486

ABSTRACT

Secoatractylohexone A (1), an unprecedented secoguaiane lactone glycoside featuring 6/7 cores and dihydroxy-9-guaine-3-one 11-O-ß-d-glucopyranoside (2), a 9,10-unsaturated guaiene-type glycoside possessing an uncommon scaffold, were isolated from the water-soluble portion of the ethanolic extract of Atractylodes lancea rhizomes together with five known compounds (3-7). The structures of 1 and 2 were elucidated on the basis of extensive spectroscopic data and application of the CD technique. The potential biological activities of secoatractylohexone A were predicted by network pharmacology in silico, the result of which indicated that secoatractylohexone A may be used to treat type II diabetes.


Subject(s)
Atractylodes , Diabetes Mellitus, Type 2 , Sesquiterpenes , Atractylodes/chemistry , Glycosides/chemistry , Lactones/analysis , Plant Extracts/chemistry , Rhizome/chemistry , Sesquiterpenes/chemistry , Water/analysis
16.
J Dairy Sci ; 105(6): 4783-4790, 2022 Jun.
Article in English | MEDLINE | ID: mdl-35450713

ABSTRACT

Cynomorium songaricum is a traditional medicine and also a food material that is eaten raw or processed as tea or beverages. As a featured plant in semi-desert grasslands, C. songaricum is also eaten by the cattle and sheep in the area. This research study fed dairy sheep C. songaricum to determine the flavan-3-ols in sheep milk. Catechin (Cat), epicatechin (Epi), procyanidin A1 (A1), procyanidin A2 (A2), and procyanidin B1 (B1) were detected in sheep milk with the concentration being Epi > A2 > Cat > B1 > A1 at 24 h after the administration of C. songaricum. Neither A1 nor A2 were detected in the methanol extract of C. songaricum. Cysteine degradation of the plant revealed that in addition to Epi, A2 was the extending unit of the polymeric flavan-3-ols in C. songaricum, indicating that A2 is released digestively from the polymers and enters the milk. Procyanidin B-1 was converted to A1 on incubation in raw but not heated milk, indicating that the A1 in milk is the enzymatically transformed product of B1. Accelerated oxidation showed that the flavan-3-ols, B1, Cat, and Epi significantly protects the unsaturated triacyglycerols in the milk from oxidation. The flavan-3-ol could slow down the oxidation of glutathione and the latter may play an important role in preventing the milk triglycerides from oxidation. Flavan-3-ols are polyphenols with many health benefits. The present research revealed the antioxidant activities of flavan-3-ols that could be absorbed to sheep milk, adding new evidences for the values of these flavan-3-ols and for the milk.


Subject(s)
Catechin , Cynomorium , Animals , Antioxidants , Catechin/analysis , Cattle , Flavonoids , Milk/chemistry , Plant Extracts/pharmacology , Polyphenols/analysis , Sheep
17.
Journal of Clinical Hepatology ; (12): 676-681, 2022.
Article in Chinese | WPRIM | ID: wpr-922979

ABSTRACT

Hepatocellular carcinoma (HCC) is the second leading cause of disease-related death in China and greatly threatens the health of residents. Recent studies have shown that traditional Chinese medicine plays an important role in the comprehensive treatment of HCC. Huaier granules have been recommended for the treatment of HCC, and its mechanism of action includes inhibiting angiogenesis, inhibiting the proliferation of HCC cells, inhibiting invasion and metastasis, inducing cell apoptosis, and regulating immune function. This article summarizes the research advances in the anti-HCC mechanism of Huaier granules and its application in clinical practice, in order to provide a reference for subsequent research and clinical treatment.

18.
J Invest Surg ; 34(12): 1297-1303, 2021 Dec.
Article in English | MEDLINE | ID: mdl-32727232

ABSTRACT

BACKGROUND: Perioperative neurocognitive disorders (PND) resulting from cardiac surgery is a complication with high morbidity and mortality. However, the pathogenesis is unknown. METHODS: For the sake of investigating the risk factors and mechanism of PND, we collected the characteristics and neurological scores of patients undergoing cardiac surgery in the Affiliated Traditional Chinese Medicine Hospital of Southwest Medical University and Affiliated Hospital of Southwest Medical University from Jan 1, 2016 to Dec 11, 2018. RESULTS: We found that age and left atrial thrombus are independent risk factors for PND after cardiac surgery. Furthermore, the serum of 29 patients was collected on the 7th day after cardiac surgery for detecting the expression of lncRNA-MYL2-2 and miR-124-3p. Increased lncRNA-MYL2-2 and decreased miR-124-3p in serum were associated with the decline of patients' cognition. CONCLUSIONS: LncRNA-MYL2-2 and miRNA-124-3p may jointly participate in the occurrence and development of PND after cardiac surgery. These important findings are advantaged to further understand the pathogenesis of PND and prevent it, provide new biomarkers for the diagnosis and monitoring of PND.


Subject(s)
Cardiac Surgical Procedures , MicroRNAs , Neurocognitive Disorders , RNA, Long Noncoding , Biomarkers , Cardiac Surgical Procedures/adverse effects , Humans , MicroRNAs/genetics , Neurocognitive Disorders/diagnosis , Neurocognitive Disorders/epidemiology , Neurocognitive Disorders/etiology , RNA, Long Noncoding/genetics
19.
Chinese Journal of Dermatology ; (12): 891-897, 2021.
Article in Chinese | WPRIM | ID: wpr-911538

ABSTRACT

Objective:To investigate Chinese dermatologists′ perceptions of the correlation between diet and psoriasis, and to analyze factors influencing their perceptions.Methods:An exploratory survey study was conducted among Chinese dermatologists via the WeChat and Umer doctor platforms. The questionnaire consisted of 3 sections including career background characteristics (11 items) , dietary suggestions (3 items) and perceptions of effects of diet on psoriasis (19 items) . The results were expressed in frequency, assessed by chi-square test, and variables with significant differences were subjected to binary logistic regression analysis.Results:A total of 3 905 valid questionnaires were received. Among these responders, 91% believed psoriasis could be affected by dietary factors, and most believed certain diets could aggravate the severity of psoriasis; most dermatologists (80.1%) suggested patients avoid some foods or drinks, and the top 5 foods or drinks suggested to be avoided were seafood (2 950, 94.34%) , spicy food (2 599, 83.11%) , wine (2 588, 82.76%) , mutton (1 995, 63.8%) and beef (1 979, 63.29%) . Logistic regression analysis revealed that doctors with a college degree, practitioners of traditional Chinese medicine or integrated traditional Chinese and Western medicine, and those from hospitals of traditional Chinese medicine were more likely to suggest food or drink avoidance (all P < 0.001) ; practitioners of Western medicine ( P < 0.001) and those specializing in psoriasis ( P < 0.001) were more likely to inform that there was no need for food or drink avoidance, while those from municipal or county hospitals were less likely to inform that ( P = 0.025, 0.042, respectively) . Practitioners of traditional Chinese medicine ( P < 0.001) or integrated traditional Chinese and Western medicine ( P = 0.004) were more likely to believe that foods could aggravate the disease condition, while clinicians with working experience of more than 20 years ( P < 0.01) and those with a doctor degree ( P = 0.008) were less likely to think so; doctors with a college degree, and those from traditional Chinese medicine hospitals were more likely to believe that drinks could aggravate the disease condition (both P < 0.05) ; practitioners of traditional Chinese medicine or integrated traditional Chinese and Western medicine, those with intermediate and senior professional titles, those working at psoriasis specialty clinics and those engaged in psoriasis basic research were more likely to believe that foods could relieve the disease condition (all P < 0.05) ; doctors from traditional Chinese medicine hospitals, those with working experience of > 5 years, those with a college degree, and those engaged in psoriasis basic research were more likely to believe that drinks could relieve the condition (all P < 0.05) . Conclusion:A relatively high proportion of Chinese dermatologists had the viewpoints that diets were correlated with the severity of psoriasis and there was a need for food or drink avoidance, and this perception was related to academic degree, practicing category of clinicians, as well as the type and location of the hospital.

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Article in Chinese | WPRIM | ID: wpr-907639

ABSTRACT

The cross-cultural sensitivity scale (ISS) and the self-made cross-cultural communication Traditional Chinese Medicine (TCM) professional ability test were used to investigate the ability of 151 young and middle-aged doctors (under 45 years old) in Xiyuan Hospital of Chinese Academy of Chinese Medicine. SPSS 21.0 was used to describe the statistics of the questionnaire data. ANOVA was used to analyze the factors that affected the capability, and Pearson to analyze the relevance of the internal structure of this capability. The final score of the test was 3.73±0.54 points (5 points in total). The capability of spreading TCM of young and middle-aged doctors had a significant positive correlation with their individual professional background, English language proficiency, and oversea experience ( P<0.05). The result showed that the correlation among 5 dimensions of cross-cultural sensitivity was significant, and there was a significant correlation between cross-cultural sensitivity and professional competence to spread TCM ( r>0.5, P<0.01). The young and middle-aged doctors in this hospital had an overall high score in this survey, and it was necessary to improve interaction enjoyment and strengthen professional English training. When selecting relevant talents, it should be noted that those with educational background of TCM and integrated TCM and western medicine were more suitable as workers to spread TCM. Educational background, English ability, and relevant experience showed a significant impact on capability to spread TCM. It was recommended to carry out quantitative testing of the capability to spread TCM of young and middle-aged doctors widely. When selecting talents for cross-cultural spreading of TCM, attention should be paid on factors that related to the capability.

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