Using Network Pharmacology to Explore Therapeutic Effect of Polygonum capitatum on Renal Calculus in Rats

[Objectives]To explore the therapeutic effect of Polygonum capitatum on renal calculus in rats based on network pharmacology.[Methods]Through the preliminary construction of P.capitatum-urolithiasis disease target network,explore the active components,action pathway and action target of P.capitatum-urolithiasis treatment,and use 1%ethylene glycol+2%ammonium chloride to induce SD rat kidney calcium oxalate stone model to verify the efficacy of P.capitatum-urolithiasis treatment.[Results]Through the network pharmacological prediction,it is found that the important active components in P.capitatum were quercetin,gallic acid,rutin,silybin,catechin,kaempferol and so on;potential active targets include INS,CAT,IL-6,MOCOS,etc.The results also suggest that forkhead transcription factor signaling pathway(FoxO signaling pathway),tumor necrosis factor signaling pathway(TNF signaling pathway)and hypoxia-inducible factor signaling pathway(HIF-1 signaling pathway)are the core pathways.The results of biochemical indicators in animal experiment showed that the contents of serum urea nitrogen(BUN),creatinine(Cr)and malondialdehyde(MDA)in renal tissue in the treatment group(200,500 mg/kg)were significantly lower than those in the model group,while the content of superoxide dismutase(SOD)was significantly higher than that in the model group.In addition,the kidney tissue H&E staining sections showed that P.capitatum alcohol extract administration group rats kidney calcium oxalate crystals were significantly reduced compared with the model group,the degree of renal tubular lumen expansion was lighter than the model group,suggesting that P.capitatum alcohol extract has the effect of improving renal calculus in rats.[Conclusions]This study provides a theoretical reference for the deep development of P.capitatum in the treatment of renal calculus.

Screening for Antioxidant Phenolic Compounds from Polygonum capitatum

[Objectives]To discover antioxidant natural products from the famous Hmong medicinal plant Polygonum capitatum.[Methods]The antioxidant activities of the isolated components were evaluated by ABTS and DPPH assays.[Results]A total of 27 free phenolics were isolated form P.capitatum.Then the in vitro antioxidant potential of these components was evaluated according to the DPPH and ABTS radical scavenging assays.Among them,five compounds(13,14,17,23,and 25)showed most significant ABTS radical-scavenging activity(IC 50 values of 3.81-15.09μg/mL).And 12 components(1,2,6,7,9,12,13,14,16,17,23,and 25)showed notable radical scavenging activity against DPPH(inhibition rates>88%).[Conclusions]Most of the above bioactive compounds were reported for the first time.

A New Flavonoid Glycoside from Polygonum capitatum

[Objectives]To discover novel compounds with significant anti-inflammatory activity in the alcohol extract of Polygonum capitatum.[Methods]Firstly,a new flavonoid glycoside,capitaone B(1),was isolated from the ethyl acetate extract from P.capitatum,and then 27 compounds were screened using NO anti-inflammatory activity model.[Results]Four compounds,such as kaempferol(12),1,2,6-trigalloyl-β-d-glucose(15),catechin(16)andβ-sitosterol(26),could significantly inhibit LPS-induced NO production in macrophages,with IC 50 values of 15.31,8.43,6.92 and 5.72μM,respectively.[Conclusions]The chemical composition and anti-inflammatory activity of P.capitatum were preliminarily studied,and the results provide a theoretical basis for further research on the action mechanism of subsequent anti-inflammatory active compounds of P.capitatum.

In vivo recognition of bioactive substances of Polygonum multiflorum for protecting mitochondria against metabolic dysfunction-associated fatty liver disease

BACKGROUND Metabolic dysfunction-associated fatty liver disease(MAFLD)is a severe threat to human health.Polygonum multiflorum(PM)has been proven to remedy mitochondria and relieve MAFLD,but the main pharmacodynamic ingredients for mitigating MAFLD remain unclear.AIM To research the active ingredients of PM adjusting mitochondria to relieve highfat diet(HFD)-induced MAFLD in rats.METHODS Fat emulsion-induced L02 adipocyte model and HFD-induced MAFLD rat model were used to investigate the anti-MAFLD ability of PM and explore their action mechanisms.The adipocyte model was also applied to evaluate the activities of PM-derived constituents in liver mitochondria from HFD-fed rats(mitochondrial pharmacology).PM-derived constituents in liver mitochondria were confirmed by ultra-high-performance liquid chromatography/mass spectrometry(mitochondrial pharmacochemistry).The abilities of PM-derived monomer and monomer groups were evaluated by the adipocyte model and MAFLD mouse model,respectively.RESULTS PM repaired mitochondrial ultrastructure and prevented oxidative stress and energy production disorder of liver mitochondria to mitigate fat emulsion-induced cellular steatosis and HFD-induced MAFLD.PM-derived constituents that entered the liver mitochondria inhibited oxidative stress damage and improved energy production against cellular steatosis.Eight chemicals were found in the liver mitochondria of PM-administrated rats.The anti-steatosis ability of one monomer and the anti-MAFLD activity of the monomer group were validated.CONCLUSION PM restored mitochondrial structure and function and alleviated MAFLD,which may be associated with the remedy of oxidative stress and energy production.The identified eight chemicals may be the main bioactive ingredients in PM that adjusted mitochondria to prevent MAFLD.Thus,PM provides a new approach to prevent MAFLD-related mitochondrial dysfunction.Mitochondrial pharmacology and pharmacochemistry further showed efficient strategies for determining the bioactive ingredients of Chinese medicines that adjust mitochondria to prevent diseases.

Systematic Evaluation of Pharmacognostic Identification of Polygonum capitatum

[Objectives] To investigate the systematic evaluation of pharmacognostic identification of Polygonum capitatum . [Methods] 10 batches of P. capitatum cultivated in Guizhou were chosen for plant samples. Macroscopical identification was conducted on plant roots, stems, leaves, flowers and fruits. The P. capitatum powder was processed for physical and chemical distinction by FeCl 3 chromogenic reaction, hydrochloric acid magnesium powder reaction, AlCl 3 color development reaction and thin-layer chromatography.Microscope identification was carried out on the powder. Plant genome DNeasy Plant Kit was adopted for DNA molecular marker identification. [Results] The results showed that the stem of P. capitatum was tufted, the leaves were oval, 2 to 5 cm long, and 1 to 2 cm wide;the leaf apex was acute and cuneate at the base, the inflorescence was capitate, paired or solitary;the raceme was erect and nearly spherical, and the perianth was light red. Furthermore, for the chromogenic reaction of FeCl 3 ethanol extract of P. capitatum , appeared blue and turned to dark blue after long time storing at room temperature. For the reaction of hydrochloric acid magnesium powder, the alcohol extract of P. capitatum , exhibited deep red. In the color reaction of AlCl 3, the alcohol extract revealed yellow fluorescence under 360 nm UV lamp. Microscope identification of the powder displayed pollen grains, crystal sheath fibers, cellulose, vessels, starch grains, cork cells, and other characteristic fragments. In addition, DNA barcoding electrophoresis results showed that P. capitatum showed a clear and bright single band near 500 bp, and further sequencing results showed that the sequence differences were mainly concentrated in ITS1 and ITS2 region. [Conclusions] Systematic evaluation for the identification of P. capitatum is established, which combines with macroscopic identification, physicochemical identification, powder microscope identification, and DNA molecular identification. Finally, the original medicinal material is identified as P. capitatum Buch.-Ham. ex D. Don.

Antioxidant,Anti-inflammatory,and Antibacterial Activities of Different Extracts from Polygonum capitatum

[Objectives]To investigate the antioxidant,anti-inflammatory and antibacterial activities of different extracts(aqueous,ethanol,ethyl acetate and n-butanol extracts)of Miao medicine Polygonum capitatum.[Methods]Eleven batches of P.capitatum in Guizhou province were collected,and water,ethanol,ethyl acetate and n-butanol extracts were prepared by reflux extraction.Antioxidant activity was determined by radical scavenging capacity of 1,1 diphenyl-2-picyl hydrazine(DPPH),anti-inflammatory activity was screened by lipopolysaccharide(LPS)induced RAW264.7 cells to produce NO,and the minimum inhibitory concentration(MIC)was screened by broth microdilution method.[Results]When the concentration of ethyl acetate extract was 10 mg/L,the scavenging rate of DPPH ranged from 90%to 99%.The(MIC of the ethyl acetate extract against Staphylococcus aureus(SA),Pseudomonas aeruginosa(PA)and Escherichia coli(EC)was 0.18-0.65,0.13-0.82,and 0.15-0.78 g/L,respectively.In the anti-inflammatory activity,ethyl acetate extract inhibited NO production with inhibition rate of 70%.[Conclusions]The ethyl acetate extract and ethanol extract of Miao medicine P.capitatum have strong antioxidant,anti-inflammatory and antibacterial activities.

扛板归粗多糖抗氧化、抗炎、镇痛和抑菌活性研究

目的:研究扛板归粗多糖体内外抗氧化、抗炎、镇痛和抑菌活性。方法:水提醇沉法制备扛板归粗多糖。以清除1,1-二苯基-2-三硝基苯肼(1,1-Diphenyl-2-picrylhydrazyl,DPPH)自由基、羟自由基和超氧阴离子自由基的能力为体外抗氧化评价方法,以测定总超氧化物歧化酶(Total superoxide dismutase,T-SOD)活力、过氧化氢酶(Catalase,CAT)活力和丙二醛(Malondialdehyde,MDA)含量为体内抗氧化指标,综合考察粗多糖抗氧化活性;采用二甲苯诱导小鼠耳廓肿胀法,评价粗多糖抗炎效果;测定小鼠热板痛阈值评价粗多糖镇痛作用;采用牛津杯法评价粗多糖体外抑菌效果。结果:扛板归粗多糖对DPPH自由基、羟自由基和超氧阴离子自由基具有较好的清除能力,呈剂量依懒性,半抑制浓度值(IC_(50))分别为420.93、171.53和575.40μg/mL;与对照组相比,粗多糖在体内能提高组织T-SOD活力和CAT活力,降低MDA水平。粗多糖能抑制二甲苯诱导的肿胀作用,抑制率高达40.95%。但是,该粗多糖镇痛作用不明显,对大肠埃希氏菌和金黄色葡萄球菌均无抑制作用。结论:扛板归粗多糖具有抗氧化和抗炎活性,有望开发成天然抗氧化剂。

何首乌叶不同萃取物的抗炎活性及其化学成分鉴定

目的:研究何首乌叶的成分,为其功能食品的研发提供基础数据。方法:对何首乌叶醇提取物进行有机溶剂萃取,分别得到何首乌叶石油醚、二氯甲烷、乙酸乙酯、正丁醇、水等不同萃取物,并对不同萃取物进行抗炎活性检测,后续通过硅胶柱色谱、C18柱色谱结合半制备液相等方法对抗炎活性较好的成分进行分离、纯化以及结构鉴定,结果:在质量浓度0~100μg/mL范围内,乙酸乙酯萃取物对RAW264.7细胞存活率无明显的抑制作用,且剂量依赖地抑制NO的生成。石油醚和二氯甲烷萃取物在质量浓度0~25μg/mL时,均无明显细胞毒性,并在25μg/mL时,二氯甲烷萃取物对NO的抑制率(51.47%)高于石油醚萃取物的抑制率(43.91%)。从二氯甲烷和乙酸乙酯萃取物中分离、鉴定出11个化合物,分别为2,3,4,6-三羟基苯乙酮-3-O-β-D-glucoside(1)、杨梅苷(2)、槲皮苷(3)、阿福豆苷(4)、β-谷甾醇(5)、正十六烷-5,8,11三烯酸(6)、二十六烷(7)、α-亚麻酸(8)、山柰酚-3-O-芸香糖苷(9)、肉豆蔻酸(10)和槲皮素(11)。结论:何首乌叶具有很好的抗炎活性,化合物2,4,6,7,8,9,10,11均为首次从何首乌中分离得到。

赤地利总黄酮灌胃对小鼠肝肾的影响

目的研究赤地利总黄酮对肝肾代谢的安全性及其指导用量。方法采用灌胃法连续给药15 d,摘取肝脏和肾脏称重并计算脏器系数,检验血清丙氨酸转氨酶(alanine aminotransferase,ALT)、天冬氨酸转氨酶(aspartate transaminase,AST)、血肌酐(serum screatinine,Scr)、血尿素氮(blood urea nitrogen,BUN)水平,并进行肝肾组织病理切片。结果小鼠的肝脏系数出现剂量双向性、脾脏系数发生浓度负效应;ALT、AST与对照组差异不显著,Scr与对照组间差异有统计学意义,但其浓度间差异无统计学意义,低浓度组BUN值与对照组差异显著且处理组的BUN值存在浓度正效应(P<0.05),但低于对照组,肝脏组织气球样变呈浓度正效应,肾脏组织无明显变化。结论赤地利总黄酮,口服剂量不能超过1 mg/kg。

石家庄地区水蓼引种驯化及园林应用

水蓼是一年生蓼科草本植物,植株密,易繁殖,花期长,开花效果好,管理粗放,非常适合观赏栽植。通过对水蓼的调查、引种驯化试验、耐性试验及与不同园林植物进行搭配种植等,分析总结出水蓼在石家庄地区栽植的各种优良属性,提出水蓼可作为园林景观植物被予以推广使用,拟为今后该植物的广泛应用及推广提供参考依据。

HPLC法同时测定杠板归不同部位中5种成分的含量

目的建立高效液相色谱法同时测定杠板归不同部位(茎、叶、根)中5种成分的含量。方法采用Luna?-C18(4.6 mm×250 mm,5μm)色谱柱,以乙腈-0.1%磷酸水为流动相梯度洗脱,流速为1.0 mL/min,检测波长为320 nm,柱温为30℃,测定杠板归不同部位中绿原酸、咖啡酸、芦丁、阿魏酸、槲皮素的含量。结果绿原酸、咖啡酸、芦丁、阿魏酸、槲皮素分别在0.046~4.6μg/mL,0.212~21.2μg/mL,0.055~5.5μg/mL,0.084~8.4μg/mL,0.114~11.4μg/mL范围内质量浓度与峰面积呈线性关系良好(r>0.9990),平均加样回收率为97.65%~102.09%,RSD为1.76%~2.44%。不同部位中5种成分含量差异较大,绿原酸和咖啡酸2个成分在叶中含量高,且远远高于根和茎中的含量;芦丁和阿魏酸主要存在于茎和根中,叶中未检测到;槲皮素在茎中含量最高,叶中次之,根中最低。结论建立的HPLC方法准确可靠、重复性好、专属性强,可用于杠板归不同部位中5个成分含量的同时测定。

苗药花蝴蝶回调CIA模型鼠血细胞变化的初步研究

目的 观察苗药花蝴蝶回调胶原诱导关节炎(CIA)模型鼠外周血细胞变化的初步作用机制。方法 40只大鼠随机分为花蝴蝶低剂量治疗组(花蝴蝶低组)、花蝴蝶高剂量治疗组(花蝴蝶高组)、甲氨蝶呤治疗组(甲氨蝶呤组)、CIA模型组(模型组)和正常组,分别按相关文献资料并结合民间用药经验灌胃给药。观察大鼠足关节肿胀度,检测大鼠外周血白细胞计数、淋巴细胞计数、单核细胞计数、淋巴细胞/单核细胞、红细胞计数、血细胞比容、血小板计数和平均血小板体积等指标,研究大鼠足关节病理切片等。结果 模型组大鼠足关节肿胀指数评分明显高于花蝴蝶低组、花蝴蝶高组、甲氨蝶呤组和正常组(P<0.01);正常组、甲氨蝶呤组、花蝴蝶高组、花蝴蝶低组足关节肿胀指数评分各组间比较差异无统计学意义(P>0.05)。与其他各组比较,模型组大鼠外周血白细胞计数、淋巴细胞计数、单核细胞计数、红细胞计数、血细胞比容、血小板计数均明显升高,而模型组大鼠外周血淋巴细胞/单核细胞、平均血小板体积均降低(P<0.01)。正常组、甲氨蝶呤组、花蝴蝶高组、花蝴蝶低组外周血相关检测指标各组间比较差异无统计学意义(P>0.05)。与其他各组比较,模型组大鼠膝关节骨髓腔淋巴细胞、单核细胞评分升高,而脂肪细胞评分降低(P<0.01)。正常组、甲氨蝶呤组、花蝴蝶高组、花蝴蝶低组大鼠膝关节骨髓腔淋巴细胞、单核细胞和脂肪细胞评分各组间比较差异无统计学意义(P>0.05)。结论 苗药花蝴蝶可能通过回调骨髓淋巴细胞、单核细胞、红细胞、血细胞比容、血小板等指标升高和平均血小板体积、淋巴细胞/单核细胞比值降低,回转CIA模型鼠外周血相应血细胞变化,最终缓解CIA模型鼠症状,这可能是苗药花蝴蝶治疗类风湿关节炎的初步作用机制之一。

何首乌肝损伤机制及减毒方法研究进展

何首乌Polygonum multiforum Thunb.是临床常用滋补中药,同时作为一种保健中药在药膳和食膳中广泛应用,但是近年来由于不时出现何首乌及其制品致肝损伤的报道,引起了研究者的警觉及关注。本文通过整理分析关于何首乌致肝损伤的国内外临床相关报道,从何首乌致肝毒性的物质基础二苯乙烯苷类、蒽醌类化合物和没食子酸等成分及其潜在肝毒性机制(包括代谢酶改变、氧化应激、炎症反应、线粒体损伤、肝细胞异常凋亡等方面)进行归纳总结,探讨炮制减毒和配伍减毒两种减毒方法对何首乌肝毒性的影响和机制。

虎杖研究进展及质量标志物预测

虎杖是我国常用的大宗中药材,资源丰富且分布较广,具有广阔的开发利用前景。虎杖中化学成分类型丰富,包括二苯乙烯、醌、黄酮等类化合物,虎杖的药理作用主要体现在抗炎、抗氧化、抗病毒、抗菌、抗癌、肝保护、心血管保护、免疫调节等方面。在对其化学成分、药理作用综述的基础上,根据中药质量标志物(Q-marker)理论,从生源途径、化学成分有效性、化学成分可测性及不同配伍环境几方面对虎杖Q-marker进行预测分析,为明确虎杖的Q-marker和制定科学的质量标准提供参考。

Qualitative and Quantitative Analysis of Rhizoma of Polygonum cuspidatum

Aim To establish reliable methods for evaluating the quality of rhizoma of Polygonum cuspidatum( Huzhang in Chinese). Methods TLC and HPLC were employed for the chemical identification and content determination,respectively. Results A qualitative TLC method and a quantitative HPLC method with piceid as the reference substance were established, respectively. With piceid as the reference substance and ethyl acetate-methanol-formic acid-water ( 19:3:0.5:1) as the mobile phase, a TLC method for the identification of Huzhang from the commonly used crude drugs of the same family was also set up. Conclusion The established TLC method can reasonably appraise the quality of the drug and easily distinguish Huzhang from the other commonly used crude drugs of the same family. The HPLC method for determining piceid is simple, reproducible, accurate, and feasible.

Comparison of Photosynthetic Adaptability Between Kobresia humilis and Polygonum viviparum on Qinghai Plateau

The chlorophyll fluorescence parameters of Kobresia humilis Serg. and Polygonum viviparum L. grown at two different altitudes (3?200 m, 3?980 m) were measured and the ultrastructure of chloroplasts were observed for studying the photosynthetic adaptability of plants to the influences of stress conditions in alpine environment. Rfd _values, the vitality index, in leaves of K. humilis and P.viviparum grown at 3?980 m were higher than those at 3?200 m. The higher ratio of F v/F o and F v/F m in leaves of K. humilis and P.viviparum indicated that the rate of photosynthetic conversion of light energy increased at higher altitude. Ratios of F v/F o and F v/F m and Rfd _values in K.humilis were higher than that in P.viviparum grown at the same altitude. There were more irregular chloroplasts in leaves of both species grown at higher altitude. Many irregular chloroplasts such as swollen thylakoid, deformed chloroplast envelope, were observed in P.viviparum grown at 3?980 m, but few in K. humilis . These results were discussed in relation to the photosynthetic adaptability of alpine plants and the different adaptive competence between K.humilis and P.viviparum .

何首乌属化学成分与药理作用研究进展

何首乌属植物作为一类重要的药用植物资源,一直以来都是国内外学者研究的热点。何首乌属植物化学成分的研究表明,该属植物中主要含有二苯乙烯类、黄酮类、醌类、生物碱类等多种化学成分。民间用药经验及现代研究证实何首乌属植物具有抗肿瘤、抗炎、抗菌、调节免疫等药理活性。现对何首乌属植物近年来化学成分和药理作用的研究进行总结归纳,旨在为何首乌属植物进一步的研究和合理开发利用提供参考。

Variation and Cluster Analysis on Leaf Characters from Different Provenance Sources of Polygonum multiflorum Thunb

[Objective] The aim was to study the variation of leaf characters from different provenance sources of Polygonum multiflorum Thunb,as well as to carry out cluster analysis on P.multiflorum from different provenance sources to provide basis for the classification,identification,breeding and improved variety selection of P.multiflorum.[Method] Leaf shape characters of 31 copies of germplasm resources in the major distribution region of the whole country were determined,and the genetic variation of P.multiflorum leaves from different producing areas was analyzed.[Result] The leaf characters of single plant of the same experimental provenance source of P.multiflorum were relatively stable,the variation was mainly found on the single leaf area,1/2 leaf width,leaf width and other indicators;the variation of each leaf character among different provenance sources was obvious,and the variation was mainly found on the single leaf weight,leaf area,1/2 leaf width,leaf length and other indicators.The correlation analysis of each leaf character in P.multiflorum suggested that the single leaf area and single leaf weight showed extremely significant positive correlation with leaf length,1/2 leaf width,leaf width,leaf thickness and leaf stem length,while the single leaf area and single leaf weight showed significant negative correlation with WWR（leaf width/1/2 leaf width）and LWR（leaf length/1/2 leaf length）,in addition,several macroscopic leaf characters such as leaf length,1/2 leaf width,leaf width,leaf stem length showed extremely positive correlation.The main component analysis result suggested that the contribution rate of accumulation variance of the front three main components was up to 97.4%,which could better reflect the comprehensive performance of leaf characters of different provenance sources of P.multiflorum.The cluster analysis showed that the experimental 31 copies of P.multiflorum provenance sources should be divided into three classes,the first class was distributed in the Middle,Western of Guizhou,northwestern of Guangxi and western areas with higher altitude;the second class was distributed in Hunan,Hubei,Sichuan,Guangdong and the most area of Guangxi;the third class was distributed in Anhui,Jiangsu and Henan and Shandong.[Conclusion] Cluster analysis of leaf characters indicated that the kinds of provenance sources which the geographical position was closer could be got together.The study had provided a certain basis for the classification of P.multiflorum.

Novel Stilbene Glycosides from Polygonum multiflorum

Two new stilbene glycosides (1 and 2), together with nine known compounds (3-11), were isolated from the water extract of Polygonum multiflorum Thunb. The structures of the new compounds were elucidated by their chemical properties and spectroscopic analyses, including extensive 2D NMR experiments. Compound 2 showed strong DNA cleavage activity, and compounds 1, 2 and 10 (2, 3, 4′, 5_tetrahydroxy_ trans _stilbene_2_O_β_ D _glucopyranoside) exhibited significant inhibition of lipid peroxidation.

辣蓼黄酮通过调控核因子E2相关因子2信号通路及组蛋白乙酰化缓解伪狂犬病毒感染小鼠诱导的脾脏和肺脏氧化应激

本研究通过探索辣蓼黄酮对核因子E2相关因子2(Nrf2)信号通路及组蛋白乙酰化的调控效果,以阐明辣蓼黄酮干预伪狂犬病毒(PRV)感染小鼠诱导氧化应激的分子机制。将60只无特定病原体(SPF)级昆明种小鼠,随机分为6个组(每组10只小鼠),即空白对照组、PRV组、维生素C(VC)组(灌服100 mg/kg BW VC)及辣蓼黄酮高、中、低剂量组(灌服200、100和50 mg/kg BW辣蓼黄酮混悬液),各组灌服量均为0.2 mL。PRV感染小鼠7 d后,通过荧光定量PCR测定小鼠脾脏和肺脏组织中诱导型一氧化氮合酶(iNOS)、Nrf2、血红素加氧酶-1(HO-1)、依赖还原型辅酶Ⅰ(Ⅱ)醌氧化还原酶1(NQO1)、乙酰转移酶(HAT)和去乙酰转移酶(HDAC)的mRNA表达水平;通过免疫组化和蛋白免疫印迹法(Western Blot)测定iNOS、Nrf2、HO-1、NQO1、乙酰化组蛋白H3(AcH3)和乙酰化组蛋白H4(AcH4)的蛋白表达水平。结果表明:与空白对照组相比,PRV组脾脏组织中iNOS、HAT的mRNA表达水平和AcH3的蛋白表达水平显著或极显著升高(P<0.05或P<0.01),脾脏组织中HO-1、HDAC的mRNA表达水平极显著降低(P<0.01);PRV组肺脏组织中iNOS、Nrf2、HO-1、NQO1、HAT的mRNA表达水平和iNOS、Nrf2、AcH3的蛋白表达水平显著或极显著升高(P<0.05或P<0.01),肺脏组织中AcH4的蛋白表达水平极显著降低(P<0.01)。与PRV组相比,辣蓼黄酮高、中、低剂量组脾脏组织中Nrf2、HO-1和HDAC的mRNA表达水平和AcH4的蛋白表达水平显著或极显著升高(P<0.05或P<0.01),脾脏组织中HAT的mRNA表达水平和AcH3的蛋白表达水平显著或极显著下降(P<0.05或P<0.01);辣蓼黄酮高、中、低剂量组肺脏组织中iNOS的mRNA表达水平和AcH3的蛋白表达水平显著或极显著下降(P<0.05或P<0.01),肺脏组织中AcH4的蛋白表达水平极显著升高(P<0.01)。由此可见,辣蓼黄酮对Nrf2信号通路和组蛋白乙酰化修饰具有调控作用,且其通过该调控作用缓解PRV感染小鼠脾脏和肺脏诱导的氧化应激。