RESEARCH IN VETERINARY SCIENCE
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2025
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IF 1.8
Zhiqin Liu,Yufeng Xu,Wei Liu,Lin Wang,Zhen Dong,Jianguo Zeng
Diarrhoea remains a major public health concern, particularly affecting young children and livestock. Macleaya cordata protopine total alkaloids (MPTA), a standardized extract approved in China for poultry diarrhoea, has demonstrated anti-inflammatory properties in intestinal disorders. The study aims to investigate the antidiarrheal mechanism of MPTA using castor oil- and E. coli -induced diarrhoea models in mice. We first tested MPTA for acute oral toxicity. Subsequently, the effect of MPTA on castor oil- and E. coli -induced diarrhoea in mice based on LD 50 results. Network pharmacology analysis and target competition assays (inhibitors and antagonists) were integrated to identify targets for MPTA's antidiarrheal effects. Molecular docking was used to verify the binding ability of MPTA components to these receptors. The LD 50 of MPTA was determined to be 426.1 mg/kg. The optimal MPTA activity was found at 8 mg/kg in both castor oil and in infectious models. Network pharmacology analysis revealed potential targets and pathways of MPTA against intestinal motility. The impact of MPTA on cholinergic, serotonin, dopaminergic, and adrenergic receptors was assessed using standard inhibitors and agonists to induce intestinal smooth muscle contractions or relaxations. Molecular docking confirmed the binding ability of MPTA components to these receptors. In conclusion, MPTA exhibits significant antidiarrheal effects in both castor oil and E. coli -induced diarrhoea models. Its mechanism may involve modulation of cholinergic, serotonin, dopaminergic, and adrenergic receptors, as well as inhibition of ion channels and anti-inflammatory actions. These findings highlight the potential of MPTA as a novel therapeutic agent for diarrhoea.
研究领域:
药理学
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生物医学
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PubMed
高影响因子
Journal of Environmental Sciences
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2025
·
IF 6.3
Jin Ma,Fang Bai,Zichao Gong,Guofei Dai,Licheng Huang,Wei Chen,Yunlu Jia,Lirong Song
A promising solution to combat harmful cyanobacterial blooms (CyanoHABs) is the use of naturally-derived cyanocidal compound. This study found that the crude extracts of the herbaceous plant Macleaya cordata can inhibit the growth of the bloom-forming cyanobacterium Microcystis aeruginosa . Growth inhibition test suggested that the inhibitory effect was significant at a concentration as low as 5 μg/L of the crude extracts. To comprehensively elucidate inhibitory mechanisms, we examined the responses in anti-oxidative systems, changes in triggering signals in cells, and hallmarks of programmed cell death (PCD) under the two levels of exposure to the crude extracts of M. cordata . A notable observation across all treatment groups was the significant increase in the superoxide dismutase activity of M. aeruginosa at 72 h. However, distinct patterns were observed in malondialdehyde (MDA), with no significant difference observed between the low concentration treatment group (5 μg/L) and the control group. In contrast, Microcystis cells subjected to high concentration (10 μg/L) exhibited a significant difference in MDA content at both 24 and 72 h. Furthermore, we observed that the levels of potential signaling molecules, e.g., intracellular reactive oxygen species, nitric oxide, and Ca 2+ were altered in the Microcystis cells after exposure to the crude extracts. This results in alterations to the levels of signaling molecules, which in turn stimulate the upregulation of orthocaspase, leading to PCD and population collapse eventually. This study examines the mechanisms of Microcystis suppression through naturally-derived substances, providing theoretical and technical foundations for the sustainable management of CyanoHABs.
研究领域:
环境生物学
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水生生态学
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植物化学
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DOI
PubMed
高影响因子
Biomass Conversion and Biorefinery
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2023
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IF 4
Zhu Yongbo,Huang Lijun,Liang Meng,Zhang Zuokun,Xie Hao,Sheng Xingxin,Li Xinyi,Zhong Ming,Zhou Binbin
A method of green chemistry approach to synthesize copper oxide nanoparticles (CuONPs) was reported using extracts from the root, stem, and leaves of the Macleaya cordata (Wild.) R.BR as reducing and stabilizing agents. Copper acetate precursor (Cu(CH 3 COO) 2 ) was used for green synthesis of copper oxide nanoparticles through reduction and oxidation reactions. The synthesized CuONPs were characterized using UV-Vis, XRD, FTIR, SEM, TEM, zeta potential, and energy-dispersive X-ray spectroscopy (EDS). The results of these analyses provided valuable insights into the structure, shape, functional groups, and elemental composition of the synthesized CuONPs. The antibacterial activity of the green synthesized CuONPs was evaluated using an agar diffusion assay. The result shows that the inhibition effect was concentration-dependent, and at the highest concentration (5 mg/mL), the CuONPs exhibited strong antibacterial activity against Escherichia coli and Staphylococcus aureus , with inhibition zones of 21 mm and 23 mm, respectively. The photocatalytic degradation of methylene blue (MB) at a concentration of 10 mg/mL by CuONPs (10 mg/mL) was evaluated using a photochemical reaction apparatus under simulated natural light. The degradation rate was found to be 65% within 3 h and 93% after 24 h. The degradation rate of higher concentrations of MB (100 mg/mL) was 47.9%. These results indicate that the synthesized CuONPs have great potential for rapidly breaking down textile dyes and exhibit exceptional antibacterial properties. This suggests that these nanoparticles could play a significant role in the development of sustainable nanotechnology.
研究领域:
材料科学
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环境科学
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微生物学
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DOI
高影响因子
Revista Brasileira de Farmacognosia-Brazilian Journal of Pharmacognosy
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2024
·Vol. 34
·期 3
·637-646
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IF 1.4
Guo Liyang,Xue Xuexue,Zhou Yang,Chen Chunli,Sheng Zunlai
Diarrhea continues to be a major public health problem and is thought to be the cause of 525,000 child fatalities annually. Studies have shown that Macleaya cordata (Willd.) R.Br., Papaveraceae, has a good therapeutic effect on diarrhea due to its action on ion channels. However, its antidiarrheal mechanisms and key targets are not supported by scientific research. This study aimed to identify the mechanisms of action and targets of the primary active antidiarrheal compounds of M. cordata . We used network pharmacology and molecular docking to identify the antidiarrheal mechanisms and the key targets of M. cordata and its main chemical constituents. Subsequently, the experiments performed with dihydrosanguinarine (25, 50, and 100 mg/kg), which included the evaluation of the inhibitory potential of the epidermal growth factor receptor in osimertinib-induced diarrhea, real-time quantitative PCR, and western blotting, were performed for further verification of its mechanism of action. The findings revealed that of all the genes, tyrosine-protein kinase Lck, receptor tyrosine-protein kinase Erbb2, and epidermal growth factor receptor had the highest capacity of action, and the NF-kappa B and the calcium signaling pathways may play essential roles in M. cordata against diarrhea. Dihydrosanguinarine is the most active ingredient, and it significantly inhibits the increase in incidence and decreased the fecal water content of osimertinib-induced diarrhea. Western blot and qRT-PCR showed that dihydrosanguinarine works as an antidiarrheal agent by upregulating the expression of the core target epidermal growth factor receptor, affecting the NF-kappa B and the calcium ion signaling pathways, downregulating the expression of calcium-activated chloride channel and NK-kappa B P-65. Graphical
研究领域:
药理学
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分子生物学
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中药研究
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DOI
高影响因子
JOURNAL OF SEPARATION SCIENCE
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2020
·Vol. 43
·期 12
·2459-2466
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IF 2.878
Yuanyuan Liu,Wenjuan Wang,Fenfang Che,Yanzhen Lu,Aoxin Li,Hao Li,Jiangang Liu,Yun Wei
Macleaya cordata (Willd) R. Br. is a medicinal plant. The most important bioactive compounds of M. cordata are alkaloids that have many biological activities including antifungal, anti-inflammatory, and antitumor. In this study, an ionic-liquid-modified high-speed counter-current chromatography method was established to obtain alkaloids from the fruits of M. cordata . The conditions of ionic-liquid-modified high-speed counter-current chromatography, including solvent systems, the content of ionic liquid (1-butyl-3-methylimidazolium tetrafluoroborate [C 4 mim][BF 4 ]), and the posttreatment of the ionic liquid, were investigated. Five alkaloids protopine, allocryptopine, sanguinarine, 8-O-demethylchelerythrine, and chelerythrine were separated from the extract of the fruits using a high speed counter-current chromatography with two-phase solvent system composed of dichloromethane/methanol/0.3 mol/L hydrochloric acid aqueous solution/[C 4 mim][BF 4 ] (4:2:2:0.015, v/v). Their purities were 96.33, 95.56, 97.94, 96.22, and 97.90%, respectively. The results indicated that a small amount of ionic liquids as modifier of the two-phase solvent system could shorten the separation time and improve the separation efficiency of the alkaloids from the fruits. The ionic-liquid-modified high-speed counter-current chromatography would provide a feasible way for highly effective separation of alkaloids from natural products.
研究领域:
生药学
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分析化学
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药物化学
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PubMed
高影响因子
JOURNAL OF MOLECULAR RECOGNITION
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2020
·Vol. 33
·期 8
·e2844
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IF 2.214
Lu Wang,Yanhong Wang,Binbin Zhou,Ming Zhong
A novel type of magnetic molecularly imprinted polymers (MMIP) as the solid-phase extraction sorbent was prepared, which can extract effectively the allocryptopine from the waster of Macleaya cordata (Willd) R . Br . In this study, MMIP was synthesized by using Fe 3 O 4 @SiO 2 , 4-vinyl-pyridine, ethylene glycol dimethacrylate, and allocryptopine, and these ingredients worked as magnetic core, functional monomer, cross-linker, and template, respectively. Concluded by the calculation of Gaussian 09 software, different ratio models of 4-vinyl-pyridine and allocryptopine were simulated, and the optimal ratio was 1:5 and the energy was −2205.34 kJ/mol. Transmission electron microscopy, vibration sample magnetometry, X-ray diffraction, Fourier transform infrared spectroscopy, and thermogravimetric analysis were used to determine the morphology and structure of MMIP. Furthermore, the results of adsorption experiments indicated that MMIP had high selectivity, excellent recyclability, and good adsorption performance (9.86 mg/g, 298 K). The adsorption process was consistent with the Langmuir adsorption isotherm ( R 2 > 0.98, 298 K) and pseudo-second-order kinetics model ( R 2 > 0.99, 298 K). After six times adsorption-desorption experiments, the adsorption amount of MMIP only reduced to 8.5%. In the experiments of selective adsorption, MMIP has better adsorption properties for allocryptopine (ALL, C 21 H 23 NO 5 ) than those having the same functional group. The limit of detection (LOD) was 0.4 μg/mL. The relative standard deviation ranged from 0.09% to 0.72%. The recovery of allocryptopine in samples ranged from 93.60% to 106.19%. In addition, the synthesized complex had a certain adsorption effect on allocryptopine separating from the wastewater of Macleaya cordata (Willd) R . Br .
研究领域:
环境科学
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分析化学
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材料科学
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DOI
高影响因子
Frontiers in Pharmacology
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2022
·
IF 5.988
Liu Zhi-Hai,Wang Wei-Mei,Zhang Zhen,Sun Liang,Wu Shuai-Cheng
The emergence and spread of antibiotic-resistant bacteria, such as methicillin-resistant Staphylococcus aureus (MRSA), underly the urgent need to develop novel antibacterial drugs. Macleaya cordata, a traditional medicinal plant, has been widely used in livestock animals, plants, and humans. Alkaloids are the primary bioactive compounds of Macleaya cordata and exhibit antibacterial, antiinflammatory, and antioxidant activities. Nevertheless, the antibacterial compounds and mode of action of Macleaya cordata remain unclear. In the present study, we investigated the antibacterial activity and mode of action of alkaloids from Macleaya cordata. Sanguinarine, 6-ethoxysanguinarine (6-ES), 6-methoxydihydrosanguinarine (6-MS), chelerythrine (CH), and dihydrochelerythrine (DICH) exhibited good antibacterial activity against Gram-positive bacteria, including MRSA. 6-ES rapidly killed MRSA, possibly by interfering with membrane and metabolic functions including ROS production by targeting the membrane and FtsZ in S. aureus. Additionally, 6-ES directly suppressed the hemolytic activity of α-hemolysin, alleviated inflammatory responses, and eliminated intracellular MRSA, as well as displayed low development of drug resistance, in vitro. Finally, a 6-ES-loaded thermosensitive hydrogel promoted wound healing in mice infected with MRSA. These results supported 6-ES as a novel potential candidate or leading compound with antibacterial, antivirulence, and host immunomodulatory activities in fighting against bacterial infections.
研究领域:
药理学
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微生物学
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传染病学
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植物科学
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PubMed
高影响因子
JOURNAL OF SEPARATION SCIENCE
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2018
·Vol. 41
·期 16
·3318-3327
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IF 2.415
Ming Zhong,Yan-Hong Wang,Lu Wang,Rui-Qing Long,Chun-Lin Chen
A novel type of magnetic molecularly imprinted polymer was prepared for the selective enrichment and isolation of chelerythrine from Macleaya cordata (Willd) R. Br . The magnetic molecularly imprinted polymers were prepared using functional Fe 3 O 4 @SiO 2 as a magnetic support, chelerythrine as template, methacrylic acid as functional monomer, and ethylene glycol dimethacrylate as cross-linker. Density functional theory at the B3LYP/6-31G (d, p) level with Gaussian 09 software was applied to calculate the interaction energies of chelerythrine, methacrylic acid and the complexes formed from chelerythrine and methacrylic acid in different ratios. The structural features and morphology of the synthesized polymers were characterized by using Fourier transform infrared spectroscopy, X-ray diffraction, transmission electron microscopy, and vibration sample magnetometry. Adsorption experiments revealed that the magnetic molecularly imprinted polymers possessed rapid kinetics, high selectivity, and a higher binding capacity (7.96 mg/g) to chelerythrine than magnetic molecularly non-imprinted polymers (2.36 mg/g). The adsorption process was in good agreement with the Langmuir adsorption isotherm and pseudo-second-order kinetics models. Furthermore, the magnetic molecularly imprinted polymers were successfully employed as adsorbents for the extraction and enrichment of chelerythrine from Macleaya cordata (Willd) R. Br . The results indicated that the magnetic molecularly imprinted polymers were suitable for the selective adsorption of chelerythrine from complex samples such as natural medical plants.
研究领域:
药学
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分析化学
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PubMed
高影响因子
Animals
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2022
·Vol. 12
·期 18
·2480
·
IF 3.231
Cheng Zhang,Weihao Li,Ligong Chen,Zhaoliang Chen,Xuejing Wang,Qianqian Xu,Hailong Zhang,Huan Chen,Juxiang Liu
Simple SummaryDeveloping safe and effective antibiotic growth promoters (AGPs) substitutes is particularly important to improve animal health and production performance. As an essential plant oil, the oregano oil's main bioactive substance is carvacrol, which has been proven to have antioxidant, anti-inflammatory, antibacterial, and antiviral properties. The sanguinarine from macleaya cordata is the primary bioactive substance. Sanguinarine has anti-tumor, immune-enhancing, antibacterial, and anti-inflammatory effects. However, it has not been reported whether the compatibility of oregano oil and macleaya cordata extract could produce better results. This study is the first to report the effect of oregano oil combined with macleaya cordata oral solution on the growth of broilers. The oregano oil combined with macleaya cordata oral solution significantly improved the growth performance of broilers. At the same time, serum biochemical indices, serum antioxidant indices, serum immune indices, serum cytokines, and intestinal morphology were significantly improved. In summary, our results demonstrated that the mixed solution of oregano oil and macleaya cordata has substantial potential to be an alternative to AGPs for broilers to reduce costs and improve benefits. This study provides basic data and technical support for further research.AbstractThe abuse of AGPs in animal husbandry has led to severe problems such as drug resistance and ecological, and environmental destruction, which seriously threaten human health and public health security. In recent years, extracts of oregano oil and macleaya cordata have become a hot spot in the research and application of AGP substitutes for their safety and high efficiency. This study is the first to report the effect of oregano oil combined with macleaya cordata oral solution on broiler growth performance. A total of 960 one-day-old broiler chickens were randomly divided into four treatment groups (240 chickens per group). Each treatment group was divided into six replicate groups (40 birds per replicate group). There were four groups in this study: the solvent control group, the oregano essential oil combined with macleaya cordata extract oral solution group (OS group), the oregano essential oil oral solution group (OEO group), and the macleaya cordata extract oral solution group (MCE group). Two chickens from each replicate group were collected and mixed into a composite sample. Six composite samples were obtained for each treatment group. The results showed that the oregano oil combined with macleaya cordata oral solution significantly improved the growth performance of broiler chickens. At the same time, serum biochemical indices, serum antioxidant indices, serum immune indices, serum cytokines, and intestinal morphology were significantly improved by the OS group. This study shows that oregano oil combined with macleaya cordata oral solution has substantial potential to be an alternative to AGPs for broilers.Keywords:oregano oil;macleaya cordata;oral solution;broilers;growth performance
研究领域:
动物科学
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药理学
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兽医学
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PubMed
高影响因子
Journal of Herbal Medicine
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2023
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IF 2.3
Ying Liu,Xia Zhang,Huaiyu Cheng,Yifang Li,Guangxiong Zhou
ABSTRACT Introduction It has a long history to employ Macleaya cordata (Willd.) R. Br. (Papaveraceae) for the treatment of a variety of diseases in China. Chelerythrine, one of the major of M. cordata with detoxifying and anti-inflammatory effect, is reported to combat bacteria and fungus. This work aims to explore the effect of chelerythrine against fluconazole-resistant C. albicans and also illustrate its potential mechanism. Methods The microdilution method, following CLSI-M27-A3 was used to evaluate the effect of chelerythrine against fluconazole-resistant C. albicans. Meanwhile, biofilm viability was assessed by XTT assay and cell morphology was observed by inverted microscope. RT-qPCR and confocal laser scanning microscope were employed to detect the mRNA expression and DCFH-DA staining, respectively. Fluorescence intensity was quantified by flow cytometry. Results The total alkaloids extract of M. cordata significantly inhibited the viability of C. albicans, concentration of which in 64 μg/mL presented to 40% inhibitory effect . In addition, the MIC 80 for chelerythrine was 8 μM, whereas chelerythrine in 4 μM inhibited biofilm formation by 47.7%. Further studies revealed that chelerythrine reduced the hydrophobicity of cellular surface, inhibited hyphal growth, downregulated the expression of genes related to cAMP pathway, increased cellular permeability and promoted the production of reactive oxygen species (ROS). Conclusion Chelerythrine inhibited biofilm formation by decreasing CSH and inhibiting the cAMP pathway. Chelerythrine increased cellular permeability and promoted the production of reactive oxygen species, which leads to the cell death of fluconazole-resistant C. albicans .
研究领域:
药理学
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微生物学
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植物化学
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抗真菌研究
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产品关联
DOI
高影响因子
Frontiers in Pharmacology
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2022
·
IF 5.988
Dong Zhen,Tang Shu-sheng,Ma Xiao-lan,Tan Bin,Tang Zhao-shan,Li Chang-hong,Yang Zi-hui,Zeng Jian-guo
The protopine alkaloids are widely distributed within the opium poppy family and have a wide range of pharmacological effects. MPTA is a product of the protopine total alkaloids extracted from the Macleaya cordata (Willd.) R. Br. Previously, we reported good anti-inflammatory activity of MPTA as well as oral acute and sub-chronic toxicity studies in rats. In order to perform a systematic toxicological safety assessment of MPTA, oral acute toxicity, genotoxicity (bone marrow cell chromosome aberration test, sperm abnormality test, bone marrow cell micronucleus test, and rat teratogenicity test), and chronic toxicity in mice were performed in this study. In the oral acute toxicity test, the LD50 in ICR mice was 481.99 mg/kg, with 95% confidence limits ranging from 404.27 to 574.70 mg/kg. All three mutagenicity tests tested negative in the range of 60.25–241.00 mg/kg. The results of the teratogenicity test in rats showed no reproductive or embryonic developmental toxicity at only 7.53 mg/kg, which can be considered as a no observed effect level (NOEL) for the teratogenicity test. Therefore, MPTA is safe for use at the doses tested, but attention should be paid to the potential risk to pregnant animals and the safety evaluation and toxicity mechanisms in target animals should be further investigated.
研究领域:
毒理学
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药理学
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遗传学
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DOI
PubMed
高影响因子
Veterinary Sciences
·
2025
·Vol. 12
·期 12
·1206
·
IF 2.3
Yi Lu,Zhenyue Li,Zitong Yang,Ran Zhu,Mengxi Yan,Zhuhua Liu,Mingli Liu,Yuan Wang,Jue Wang,Qi Wang,Juxiang Liu,Cheng Zhang,Xuejing Wang,Huan Cui
Simple SummaryAntibiotic growth promoters have been banned or strictly restricted in many countries, creating an urgent need for safe and effective alternatives to support broiler health and performance. Oregano essential oil andMacleaya cordataextract are two phytogenic additives with promising antimicrobial, antioxidant, and anti-inflammatory properties, but their combined effects in broilers are not fully understood. In this study, 960 broilers were randomly assigned to four treatments: a control group, a group receiving oregano essential oil (OEO), a group receivingMacleaya cordataextract (MCE), and a group receiving a combination of the two (OMS). The combined OMS treatment improved growth performance and feed efficiency, enhanced serum antioxidant and immune indices, and modulated fecal microbiota by enriching beneficial bacteria and reducing potentially harmful taxa. These findings suggest that the combination of OEO and MCE can be used as a practical phytogenic strategy to improve broiler productivity and gut health in antibiotic-free production systems.With the growing demand for antibiotic-free and sustainable poultry production, plant-derived antimicrobials have emerged as promising alternatives. However, a systematic understanding of the combined effects of oregano essential oil (OEO) andMacleaya cordataextract (MCE) on the broiler gut microbiome remains lacking. This study employed an integrated “structure–function–phenotype” framework to investigate the individual and combined (OMS) effects of OEO and MCE on gut microecological remodeling and its coupling with host growth, metabolic, and immune phenotypes. A total of 960 one-day-old broiler chicks were individually weighed and then randomly allocated to four treatments using body-weight-stratified randomization, with 6 replicate pens per treatment and 40 birds per pen, to ensure similar initial body weight across groups. Over a 42-day trial, we evaluated growth performance, serum biochemistry, antioxidant status, and immune parameters. Compared to the control, the OMS treatment significantly enhanced average daily feed intake (ADFI) and average daily gain (ADG), increased serum total protein (TP), and decreased blood urea nitrogen (BUN), triglycerides (TG), total cholesterol (TC), and alkaline phosphatase (ALP). However, the feed-to-gain ratio (F/G) was also higher in the OMS group, indicating that the improvement in growth rate did not translate into enhanced feed efficiency but was primarily driven by increased feed consumption. OMS also improved overall antioxidant capacity and key enzyme activities, elevated immunoglobulin levels, and reduced pro-inflammatory cytokines. Notably, OMS maintainedLactobacillusdominance, enrichedBacteroides, Enterococcus, andButyricicoccus, and reducedEscherichia–Shigella. Functional predictions via PICRUSt2 suggested enhanced metabolic pathways related to antioxidant and immune functions; however, these results represent inference-based predictions and should be interpreted cautiously. Overall, the combination of OEO and MCE exerted synergistic benefits on growth, physiological health, and gut microbiota, supporting its potential as a phytogenic strategy for antibiotic-free broiler production.
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高影响因子
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