Herb pair of Huangqi-Danggui exerts anti-tumor immunity to breast cancer by upregulating PIK3R1

Background:According to traditional Chinese medicine(TCM),drugs supplementing the vital energy,Qi,can eliminate tumors by restoring host immunity.The objective of this study is to investigate the underlying immune mechanisms of anti-tumor activity associated with Qi-supplementing herbs,specifically the paired use of Huangqi and Danggui.Methods:Analysis of compatibility regularity was conducted to screen the combination of Qi-supplementing TCMs.Using the MTT assay and a transplanted tumor mice model,the anti-tumor effects of combination TCMs were investigated in vitro and in vivo.High content analysis and flow cytometry were then used to evaluate cellular immunity,followed by network pharmacology and molecular docking to dissect the significant active compounds and potential mechanisms.Finally,the anti-tumor activity and the mechanism of the active ingredients were verified by molecular experiments.Results:There is an optimal combination of Huangqi and Danggui that,administered as an aqueous extract,can activate immunity to suppress tumor and is more effective than each drug on its own in vitro and in vivo.Based on network pharmacology analysis,PIK3R1 is the core target for the anti-tumor immunity activity of combined Huangqi and Danggui.Molecular docking analysis shows 6 components of the combined Danggui and Huangqi extract(quercetin,jaranol,isorhamnetin,kaempferol,calycosin,and suchilactone)that bind to PIK3R1.Jaranol is the most important component against breast cancer.The suchilactone/jaranol combination and,especially,the suchilactone/kaempferol combination are key for immunity enhancement and the anti-tumor effects of the extract.Conclusions:The combination of Huangqi and Danggui can activate immunity to suppress breast cancer and is more effective than the individual drugs alone.

Danggui Shaoyao powder improves hepatic lipid metabolism in atherosclerosis mice via PPARγ-LXRα-ABCA1 pathway regulation

Objective:To observe the effects of Danggui Shaoyao powder(DSP)on hepatic lipid metabolism and further explore its mechanism of action by peroxisome proliferator-activated receptor(PPARγ)-liver X receptor(LXRα)-adenosine triphosphate(ATP)-binding cassette transporter A1(ABCA1)pathway regulation.Methods: Eight C57BL/6J male mice were selected as the control group,and 24 ApoE^(−/−)male mice were randomly divided into the atherosclerosis model(AS)group,atorvastatin calcium(AC)group,and DSP group(n=8 each group).To establish an AS model,ApoE^(−/−)mice were fed a high-fat diet for 16 weeks.Pathologic changes in the aortic vasculature and liver were identified using Oil Red O staining.Triglyceride(TG),cholesterol(TC),and low-density lipoprotein cholesterol(LDL-C)levels were determined in the livers using a single-reagent GPO-PAP method.Fluorescence quantitative polymerase chain reaction and western blot were used to observe and evaluate the mRNA and protein expression of the PPARγ-LXRα-ABCA1 intermediates in the liver.Results: After 16 weeks of a high-fat diet,ApoE^(−/−)mice showed more Oil Red O staining in the aorta and liver compared to the CONT group.Compared to the AS group,the DSP and AC treatment reduced aortic plaque and hepatic lipid deposition to varying degrees.Furthermore,DSP significantly reduced the hepatic lipid area in ApoE^(−/−)mice(P<.001)and decreased the levels of TG,TC,and LDL-C in liver(P<.001,P=.027,P<.001,respectively).DSP also significantly increased the levels of PPARγ,LXRα,ABCA1,and ABCG1 mRNA expression,as well as the PPARγ,LXRα,ABCA1,and ABCG1 protein expression in liver.Conclusion: DSP improved hepatic lipid metabolism via PPARγ-LXRα-ABCA1 pathway modulation for AS treatment.

Network pharmacology to decipher the mechanism of Danggui Longhui Wan against chronic myeloid leukemia

Chronic myeloid leukemia(CML)is a hematopoietic myeloproliferative disorder.The Chinese prescription Danggui Longhui Wan(DGLHW)has been utilized in CML treatment,but its underlying mechanisms remain unclear.In this study,we gathered 794 constituents,1249 drug targets,1654 disease genes and 129 intersection genes.GO and KEGG were used to analyze the function of these genes.Compatibility of prescription study showed that monarch drug,minister drug,assistant and guide drug played a synergistic role in the treatment of CML.In addition,we obtained 20 hub genes and 12 key components.Molecular docking indicated that the main compounds and core proteins had good binding ability.The results of this study also showed that DGLHW might play a role in the treatment of CML by affecting MAPK,PI3K/AKT,FoxO and p53 signaling pathways.

当归不同药用部位的化学成分及药理作用研究进展

当归作为“分根梢”理论的代表药材,其以不同药用部位分别入药起源于唐代,形成于金元,兴盛于明清;经历代医家临床实践总结,逐渐确立了归头止血、归身补血、归尾活血的作用功效。现代研究表明,当归中含有当归多糖、挥发油、有机酸、无机盐等药效部位及阿魏酸、绿原酸、欧前胡素、藁本内酯等药效成分;在当归头、当归身及当归尾等不同药用部位中,上述药效物质基础的种类分布均匀、区别不大,但含量及相关比例差异明显;多数学者认为,含量、比例差异可能是导致当归不同药用部位存在较大药理作用差异的主要原因。通过对相关文献的检索,梳理和总结近年来国内外对当归不同药用部位中药效物质基础分布情况及相关药理作用的研究,从当归不同药用部位中药效物质基础的种类分布和含量差异两个方面综合分析,并结合相关药效物质基础对应的药理作用研究,找寻当归不同药用部位间存在的“成分-效用”关系,以期为历代医家将当归按当归头、当归身、当归尾分别入药提供更强有力的佐证,同时为当归提出进一步研究的主要方向和思路。

Danggui Niantong decoction ameliorates joint inflammation and cardiopulmonary injury in TNF-Tg mice

Objective:Rheumatoid arthritis(RA)is a common autoimmune disease characterized by multiple joint lesions and systemic complications.Danggui Niantong decoction(DGNTT)has been clinically used for RA treatment;however,its beneficial effect on cardiopulmonary complications has not been reported.Methods:Female tumor necrosis factor-transgenic(TNF-Tg)mice were used to evaluate the therapeutic effects of DGNTT on arthritis and cardiopulmonary complications.Methotrexate(MTX)served as a positive control.Histopathological assessment of the joint sections was performed using hematoxylin and eosin(HE),Alcian Blue/Orange G,and tartrate-resistant acid phosphatase staining.Bone mass was assessed by micro-computed tomography,inflammatory infiltrates in the heart and lungs were evaluated by HE staining,cardiopulmonary fibrotic injury was identified by Masson’s trichrome staining,and hypertrophy of mouse cardiomyocytes was measured by wheat germ agglutinin(WGA)staining.Results:DGNTT mitigated the inflammation of the ankle joint synovium,decreased the number of osteoclasts,and increased the area of cartilage and bone mass in TNF-Tg mice.In addition,DGNTT decreased the infiltration of inflammatory cells into the lung and heart tissues,accompanied by a reduction in cardiopulmonary fibrosis and myocardial cell hypertrophy in TNF-Tg mice.As a positive control drug,MTX attenuated the pathological changes in joints,but had no beneficial effect on cardiopulmonary inflammation and fibrosis in TNF-Tg mice.Conclusions:DGNTT improved joint lesions and alleviated cardiopulmonary complications in TNF-Tg mice.

Effects of Jiawei Danggui Buxuetang on miRNA-155 and SOCS1 in renal tissue of DKD rats

Objective:To observe the effect of Jiawei Danggui Buxuetang on the expression of microRNA-155(miR-155)and cytokine signal transduction inhibitor 1(SOCS1)in renal tissue of rats with diabetic nephropathy(DKD),and to explore the mechanism of Jiawei Danggui Buxuetang in the treatment of DKD.Methods:Firty 6-week-old SPF male SD rats were randomly divided into normal group(CON)and model group.The model group was fed with high-sugar and high-fat diet for 6 weeks,and the DKD rat model was established by intraperitoneal injection of streptozotocin(STZ)(35 mg/kg).Then the rats were randomly divided into model group(MOD),low dose group(DBTL),medium dose group(DBTM),high dose group(DBTH)and irbesartan group(IRB).Each group was given intragastric administration for 20 weeks,during which CON group and MOD group were given the same amount of normal saline.Urine samples were collected after administration,and the ratio of urinary Microalbumin to urinary creatinine(UACR)was analyzed by automatic analyzer.The renal changes in each group were observed by hematoxylin-eosin(HE)staining,Masson pine(Masson)trichromatic staining and PASM staining.The expression of miR-155 and SOCS1mRNA in renal tissue of DKD rats was detected by Real-time PCR,and the expression of SOCS1 was detected by Western blotting.Results:By comparison with CON group,UACR value,MIR-155 mRNA expression and SOCS1 mRNA expression in MOD group increased significantly,while SOCS1 mRNA expression decreased significantly compared with MOD group,UACR decreased significantly in IRB group and DBT group,SOCS1 expression increased significantly in DBTM group,DBTH group and IRB group.The expression of MIR-155 decreased significantly in all treatment groups(P<0.05),and the expression of SOCS1 in DBTM group,DBTH group and IRB group increased significantly(P<0.05).Conclusion:Jiawei Danggui Buxuetang can reduce the expression of miR-155 in high glucose and increase the expression of SOCS1 in renal tissue,so as to significantly reduce renal damage and play a role in renal protection.

Study on the Molecular Mechanism of Danggui Buxue Decoction in Intervention of Perimenopausal Syndrome Based on Network Pharmacology and Molecular Docking

[Objectives]This study was conducted to explore the intervention mechanism of Danggui Buxue Decoction in perimenopausal syndrome based on network pharmacology and molecular docking.[Methods]The chemical components and targets of Danggui Buxue Decoction were acquired through the TCMSP database,and the main targets of perimenopausal syndrome were obtained through the GeneCards database.The component targets and disease targets were intersected,and combining with active components and Chinese herbs in the decoction,a traditional Chinese medicine-component-target network was constructed using Cytoscape 3.7.1 software.The STRING platform was employed for protein-protein interaction analysis.The DAVID analysis platform was used to conduct target GO and KEGG enrichment analysis,so as to predict the action mechanism Danggui Buxue Decoction.Finally,an active component-disease target-signal pathway network diagram was constructed.[Results]Twenty two components in Danggui Buxue Decoction related to perimenopausal syndrome and 120 corresponding targets were obtained,including active components such as 1,7-dihydroxy-3,9-dimquercetin and kaempferol,and key targets such as TNF,ESR1 and PPARG.The results of GO analysis and KEEG analysis indicated that Danggui Buxue Decoction might regulate the transcription of RNA polymerase II promoter,DNA templating,gene expression,signal transduction,hypoxia response and other biological processes by regulating multiple signal pathways such as chemical carcinogenesis-receptor activation,cancer pathways,lipid and atherosclerosis,tryptophan metabolism,malaria,steroid hormone biosynthesis and chemical carcinogenesis-DNA adduct.[Conclusions]Danggui Buxue Decoction intervenes in perimenopausal syndrome through multiple components,targets and pathways,providing a basis for elucidating the intervention mechanism of Danggui Buxue Decoction and expanding its clinical application.

基于化学成分与药理作用评价当归-黄芪药对配方颗粒汤剂与传统汤剂的差异

目的评价当归-黄芪药对配方颗粒汤剂(DGD)与传统汤剂在化学成分和药理效应方面的差异,为合理应用该配方颗粒提供参考。方法以原料来源批次统一和不统一2种对比方式,设不同样品组,采用高效液相色谱(HPLC)法建立特征图谱,从特征图谱相似度、成分种类、指标成分含量、共有峰面积等角度对化学成分进行评价;采用失血性血虚模型小鼠评价药效。结果①DGD特征图谱与传统汤剂相似度较高(相似度>0.87);②共有色谱峰数目不一致,传统汤剂-自购饮片和传统汤剂-A厂饮片共有色谱峰各12个,A厂DGD共有色谱峰15个,B厂DGD共有色谱峰10个;③A厂DGD中阿魏酸、毛蕊异黄酮苷含量高于传统汤剂(P<0.05);B厂DGD与传统汤剂阿魏酸含量差异无统计学意义,但毛蕊异黄酮苷含量较传统汤剂低(P<0.05);④DGD共有峰面积总和与传统汤剂相比,自购传统汤剂、A厂传统汤剂及A厂配方颗粒、B厂配方颗粒中各成分含量相对比值分别为1.00、0.96、2.14、0.60;⑤DGD及传统汤剂均能明显促进失血性贫血模型小鼠血红蛋白(Hb)、红细胞(RBC)恢复(P<0.01);与模型对照组比较,除B厂DGD组外均差异有统计学意义(P<0.05);A厂DGD与传统汤剂差异无统计学意义,B厂DGD与传统汤剂差异有统计学意义(P<0.01)。结论无论原料来源批次是否一致,DGD与传统汤剂在化学成分上均存在一定差异;在药理作用上,来源于同一批次饮片制备的DGD与传统汤剂对改善失血性贫血药效相当,来源于不同批次饮片制备的DGD与传统汤剂在药效上存在一定差异;不同来源批次的饮片和不同制备工艺造成不同厂家配方颗粒存在质量差异,说明国家统一配方颗粒质量标准及制定相关过程规范具有必要性与紧迫性。

当归多糖对再生障碍性贫血小鼠骨髓Th17/Treg细胞平衡及相关炎性因子蛋白表达的影响

目的探究当归多糖(Angelica polysaccharide,APS)对再生障碍性贫血(aplastic anemia,AA)小鼠骨髓Th17/Treg细胞平衡及相关炎性因子蛋白表达的影响。方法50只雄性BALB/c小鼠随机分为正常组、模型组、环孢素A组、APS低、高剂量组,利用射线照射联合异源淋巴细胞输注的方法制备再生障碍性贫血小鼠模型。建模后灌胃给药28 d,观察小鼠一般情况、体重变化、脾指数,检测外周血基本血液学参数变化,HE染色评价小鼠骨髓组织病理变化;ELSIA法检测骨髓TGF-β1、IL-10、IL-17A、IL-6等蛋白表达水平;FCM检测骨髓Th17、Treg细胞比例及Th17/Treg细胞平衡变化。结果与正常组相比,模型组小鼠活动笨拙,精神萎靡,眼睑唇色耳廓颜色苍白,进食饮水量减少;体重及脾指数均明显下降;外周血红细胞、白细胞、血小板计数及血红蛋白浓度均明显降低;骨髓组织结构紊乱,造血组织增生度明显减低;IL-17A、IL-6蛋白表达明显上调,TGF-β1、IL-10蛋白表达明显下调;骨髓Th17细胞比例明显增高,Treg细胞比例明显降低,Th17/Treg细胞比值显著升高(P<0.01)。与模型组相比,APS低、高剂量组一般状况均改善,进食量及饮水量增加,体重、脾指数明显升高,外周血红细胞、白细胞、血小板计数及血红蛋白浓度明显升高(P<0.05),骨髓组织结构改善,造血组织增生度升高(P<0.05);IL-17A、IL-6蛋白表达明显下调,TGF-β1、IL-10蛋白表达明显上调(P<0.05或P<0.01);骨髓Th17细胞比例明显降低,Treg细胞比例明显升高,Th17/Treg细胞比值显著下降(P<0.01)。结论当归多糖能改善AA小鼠骨髓造血功能,其机制可能是通过调节Th17/Treg细胞平衡来实现。

Mechanism prediction of Astragalus mongholicus Bunge and Angelica sinensis Diels in treating interstitial lung disease based on network pharmacology and molecular docking

Objective:To investigate the mechanism by which Astragalus mongholicus Bunge(AM),and Angelica sinensis Diels(AS)act in interstitial lung disease(ILD)based on computational prediction.Methods:We screened the ingredients of AM and AS in PubMed,the Web of Science,China National Knowledge Infrastructure(CNKI)Databases,etc.Then obtained the potential effective components.By sharing the same molecular with ILD,we got the possible target genes for ILD treatment and constructed components–targets–disease network with Cytoscape software.The CTD(Comparative Toxicogenomics Database)database was used for GO and KEGG enrichment analysis of these target genes.Results:59 active ingredients that can be druggable were chosen from AM,67 active ingredients were chosen from AS.77 overlapping target genes for AM and ILD and 36 overlapping target genes for AS and ILD were acquired.The hub targets of AM were PTGS2,PTGS1,CDK2,MAOA,ESR1,TOP2A,GSK3B,ESR2,PPARG,NOS2,The hub targets of AS were PTGS2,GABRA1,PTGS1,CHRM1,SLC6A2,ADRA1B,ADRAIA,ADRB2,CHRM3,GABRA2,CHRM2.Quercetin,kaempferol,daidzein,pavilion,7-Hydroxycoumarin,and 5-Hydroxycoumarin were the main active ingredients which have more effective targets.Prediction of the protein-protein interaction network showed PTGS2,GSK3B,PPARG,etc.,were the important predicted targets.The enriched KEGG pathways,including the Immune System,Metabolism of lipids and lipoproteins,Cytokine Signaling in the Immune system,Generic Transcription Pathway,The interleukin pathway,Metabolism of proteins,PI3K-Akt signaling pathway,Metabolic pathways,Innate Immune System,Neuroactive ligand-receptor interaction,Metabolism,GPCR downstream signaling,Amine ligand-binding receptors,Class A/1,Calcium signaling pathway.Molecular docking showed that quercetin,kaempferol,daidzein,pavilion,7-Hydroxycoumarin,5-Hydroxycoumarin had good binding activities with PTGS2 and GSK3B,which mainly mediated PI3K/Akt and other important signaling pathways in the pathogenesis of ILD.Conclusion:The components in AS and AM share some common targets,such as PTGS2.AM and AS may ameliorate ILD through the PI3K-Akt signaling pathway which is mediated by GSK3B.PTGS2,PPARG may also be vital target genes in the treatment of ILD with AM and AS.

Study on mechanism and molecular docking verification of Angelicae Sinensis Radix and Astragali Radix in treating ischemic stroke

Background:Traditional Chinese medicine(TCM)has been shown to be effective in treating ischemic stroke(IS),and the combination of Angelicae Sinensis Radix(ASR)and Astragali Radix(AR)is a core TCM prescription that is widely acknowledged for its efficacy in IS treatment.This study utilized network pharmacology methods to explore the molecular mechanisms underlying the therapeutic effects of Angelicae Sinensis Radix and Astragali Radix in IS treatment,with preliminary validation conducted through molecular docking.Methods:Information on the structure,targets,main biological functions,and pathways of the active components in Angelicae Sinensis Radix and Astragali Radix was collected using databases such as PubChem,PharmMapper,UniProt,and GeneCards.The results were visualized using software such as Cytoscape 3.6.1,Ledock,and pymol.Results:We retrieved 20 active components and 149 targets associated with the compatibility of Angelicae Sinensis Radix and Astragali Radix from various databases,and GeneCards database was used to search 3350 IS-related gene targets,including 78 key targets of Angelicae Sinensis Radix and Astragali Radix for the treatment of IS.Enrichment analysis of these 78 targets using gene ontology(GO)and Kyoto Encyclopedia of Genes and Genomes(KEGG)revealed the involvement of 48 GO terms in the treatment of IS,mainly in biological processes such as metabolism,biological regulation,and stress response.The composition of biological devices such as supercavitary membrane,cell fluid,and extracellular space was also involved.The biological functions mainly included protein binding,ion binding,hydrolytic enzyme activity,and others.The identified pathways were estrogen signaling pathway,mitogen-activated protein kinase(MAPK)signaling pathway,PI3K-AKT signaling pathway,RAP1 signaling pathway,P53 signaling pathway,PPAR signaling pathway,FOXO signaling pathway,RAS signaling pathway,prolactin signaling pathway,HIF-1 signaling pathway,and TNF signaling pathway.Molecular docking analysis showed that the 17 key active components of Angelicae Sinensis Radix and Astragali Radix had strong binding activity with 13 IS key targets.Conclusion:Through the application of network pharmacology methods,it was found that the use of Angelicae Sinensis Radix and Astragali Radix for treating ischemic stroke mainly targets the MAPK and PI3K-AKT signaling pathways,involving several crucial compounds and genes.Nevertheless,additional in vitro and in vivo studies are needed to verify these findings.

西兰花复种绿肥-当归高效轮作种植技术规程

为进一步挖掘和发挥地区农业资源优势,推进高原夏菜和当归产业健康可持续发展,经过试验示范和生产实践,从范围、规范性引用文件、术语和定义、产地环境、西兰花栽培技术、绿肥复种技术、轮作当归栽培技术等方面制订了西兰花复种绿肥-当归高效轮作种植技术规程,以更好地指导生产。

土炒当归、油当归和当归炭的质量标准研究

目的:建立土炒当归、油当归和当归炭的质量标准。方法:参照2020年版《中华人民共和国药典》当归项下的技术要求,通过对甘肃产10批土炒当归、8批油当归和11批当归炭的性状比较,描述土炒当归、油当归和当归炭的性状特征,建立土炒当归、油当归和当归炭的粉末显微鉴别和薄层鉴别方法,并测定水分、总灰分、酸不溶性灰分、醇溶性浸出物和阿魏酸含量。结果:土炒当归、油当归和当归炭的性状特征基本相同,呈圆形、类圆形或不规则的条形薄片,但各具不同的颜色和细微特征;土炒当归和油当归均具有当归对照药材的粉末显微特征;土炒当归、油当归和当归炭均具有当归对照药材的薄层色谱行为,土炒当归、油当归中检出阿魏酸和藁本内酯。10批土炒当归中阿魏酸平均含量为0.067%,8批油当归中阿魏酸平均含量为0.062%。结论:研究所测得的各项指标,可为当归炮制品的地方标准制订提供依据。

当归化学成分及药理作用研究进展

当归在补血药中因“补而不滞”的特点,被广泛用于临床。其化学成分主要包括挥发油类、多糖类、有机酸类、氨基酸类、黄酮类等,常用水蒸气蒸馏法、超临界CO_(2)萃取法、有机溶剂萃取法、煎煮法、渗漉法、超声提取等方法进行提取,而炮制方式、地域、物候期、药用部位的不同皆可影响其化学成分。关于当归药理作用的研究亦愈发深入,当前已证实的包括调节血液循环、缺血后损伤保护、抗组织纤维化、镇痛、保护脑和神经、改善机体骨损伤状态、提高机体免疫力等。参考文献76篇。

基于特征图谱及化学模式识别的当归补血汤质量评价研究

目的:建立当归补血汤超高效液相色谱-串联四极杆飞行时间质谱(UPLC-Q-TOF-MS)的特征图谱,综合评价其质量。方法:采用Waters Acquity UPLC BEH C18柱(100 mm×2.1 mm,1.7μm),以0.1%甲酸水(A)-乙腈(B)溶液为流动相,梯度洗脱,流速为0.3 mL/min,进样量2μL;使用电离子喷雾源(ESI),负离子模式扫描。并以指纹图谱相似度评价软件结合聚类分析(HCA)、主成分分析(PCA)和偏最小二乘判别分析(PLS-DA)对11批当归补血汤进行评价。结果:通过对照品比对及软件预测,从当归补血汤中鉴别出24种成分。图谱标定出41个共有峰,指认出6个色谱峰,分别为毛蕊异黄酮葡萄糖苷、阿魏酸、芒柄花苷、毛蕊异黄酮、黄芪甲苷、芒柄花素。HCA、PCA和PLS-DA3种方法均将11批样品分为3类,对黄芪统货、选货和精品饮片进行了明显区分,说明当归补血汤的特征图谱与原药材的质量和等级具有强相关性。结论:构建的高分辨质谱的特征图谱结合化学模式识别方法快速高效全面,适用于当归补血汤整体质量的评价,同时也为中药复方质量标准建立与全程质量控制提供了重要支撑。

当归多糖对低氧环境中骨髓间充质干细胞成骨分化潜能的影响

目的探讨当归多糖对低氧环境中骨髓间充质干细胞(BMSC)成骨分化潜能的影响。方法将BMSC随机分为空白组、低氧组、当归多糖组。使用OriCellTM成人BMSC成骨诱导分化完全培养基对3组细胞进行培养,其中当归多糖组的培养基含有50μg/mL的当归多糖。对空白组BMSC进行常规培养(21%氧浓度),将低氧组与当归多糖组BMSC置于6%氧浓度环境中进行培养。培养14 d后,观察3组的BMSC形态学变化和钙盐沉积情况,检测3组BMSC的成骨分化相关蛋白(骨桥蛋白和骨钙素)表达水平,以及成骨分化关键转录因子RUNT相关转录因子2(RUNX2)表达情况。结果与空白组相比,低氧组BMSC的骨钙素、骨桥蛋白、RUNX2的表达水平均降低(P<0.05),高密度钙结节及钙盐沉积减少。与低氧组相比,当归多糖组BMSC骨钙素、骨桥蛋白、RUNX2的表达升高(P<0.05),高密度钙结节及钙盐沉积增多。结论低氧环境可以抑制BMSC的成骨分化潜能,而当归多糖能够有效维持低氧环境中BMSC成骨分化潜能的稳定。

当归化肥农药减施增效栽培技术规程

当归是甘肃道地大宗中药材,化肥和农药作为当归生产的主要投入品,过量施用直接影响当归的产量和品质,同时造成产地环境污染和耕地质量下降等问题。经过试验研究和生产示范,按照化肥农药减施增效目标,从范围、规范性引用文件、术语和定义、产地环境、化肥减施、种苗移栽、田间管理、主要病虫害防控、采收等方面总结提出了当归化肥农药减施增效栽培技术规程,以更好地指导当归生产。

不同有机肥与配方肥配施对当归产量及品质的影响

为确定当归成药期适宜的商品有机肥及合理的当归专用配方肥施用量。本研究采用随机区组试验设计,研究不同有机质源有机肥与当归专用配方肥,配施下当归成药期根部形态、药材产量及指标性成分阿魏酸和挥发油等的变化。结果表明,羊粪源、鸡粪源、牛粪源3种商品有机肥均对当归商品性状无显著差异。羊粪源有机肥1800kg/hm~2与配方肥1050kg/hm~2配合施用,当归药材主根长、根粗和单根鲜重及药材产量均最大;等量有机肥施用条件下,药材浸出物和阿魏酸含量依次为羊粪源有机肥>鸡粪源有机肥>牛粪源有机肥,而鸡粪源有机肥挥发油含量最高,羊粪源有机肥则是随着施入量的增加,药材浸出物、阿魏酸和挥发油含量呈增加趋势。综上所述,当归成药期施肥采用羊粪源有机肥1800 kg/hm~2和专用配方肥1050 kg/hm~2配合施用,可有效提高当归产量并保证其品质。

黄芪甲苷对再生障碍性贫血模型小鼠骨髓造血功能及Th17/Treg细胞平衡的影响

目的:观察黄芪甲苷对免疫介导的再生障碍性贫血模型小鼠骨髓造血功能、相关细胞因子蛋白表达水平及辅助性T淋巴细胞17/调节性T淋巴细胞(Th17/Treg)平衡的影响。方法:采用免疫介导的方法制备再生障碍性贫血小鼠模型。将60只BALB/c小鼠随机分为正常对照组、模型对照组、黄芪甲苷25 mg/kg组、黄芪甲苷50 mg/kg组,每组15只。建模成功后各组灌胃相应药物,每日1次,连续给药28 d。观察小鼠一般情况、体质量、脾脏质量、外周血基本血液学参数;苏木精-伊红(HE)染色法观察骨髓组织病理变化;酶联免疫吸附试验(ELISA)法检测骨髓白细胞介素(IL)-17A、IL-6、转化生长因子-β1(TGF-β1)、IL-10蛋白表达水平;流式细胞术检测黄芪甲苷对小鼠骨髓Th17、Treg细胞比例及Th17/Treg细胞平衡的影响。结果:与模型对照组比较,黄芪甲苷各给药组小鼠一般症状均改善。与正常对照组比较,模型对照组小鼠体质量及脾脏质量下降明显,与模型对照组比较,黄芪甲苷各给药组小鼠体质量、脾脏质量均明显上升(P<0.05)。与模型对照组比较,黄芪甲苷25 mg/kg组白细胞、血小板计数明显升高(P<0.05);黄芪甲苷50 mg/kg组血红蛋白浓度、白细胞、血小板计数明显升高(P<0.05或P<0.01)。黄芪甲苷25 mg/kg组可见造血组织结构修复,造血组织增生度改善;黄芪甲苷50 mg/kg组骨髓组织结构紧密,造血组织增生度明显升高(P<0.05)。黄芪甲苷各给药组骨髓IL-17A、IL-6蛋白表达明显下调,TGF-β1、IL-10蛋白表达明显上调(P<0.05或P<0.01)。流式细胞术检测显示,黄芪甲苷给药组小鼠骨髓Th17细胞比例明显降低,Treg细胞比例明显升高(P<0.05或P<0.01),Th17/Treg细胞比值显著下降(P<0.01)。结论:黄芪甲苷能改善再生障碍性贫血小鼠骨髓造血功能,其机制可能是通过升高Treg细胞比例、降低Th17细胞比例,调节Th17/Treg细胞平衡来实现的。

糖尿病周围神经病变经当归四逆汤治疗后的神经传导速度与疗效观察

目的探讨糖尿病周围神经病变(diabetic peripheral neuropathy,DPN)经当归四逆汤治疗后的神经传导速度与疗效。方法采用随机数字表法将104例于2021年12月—2022年12月在河南省中医院接受治疗的DPN患者分为A组和B组,各52例。B组患者采用常规治疗,A组在B组基础上给予当归四逆汤治疗。以4周为1个周期,两组均维持治疗1个周期。比较两组治疗4周后的临床疗效,治疗前、治疗4周后的中医证候评分、血清学指标、血糖指标、神经传导情况及治疗期间的不良反应发生情况。结果与B组比较,A组治疗4周后的临床总有效率较高,[98.08%(51/52)vs 84.62%(44/52)];相较于治疗前,两组治疗4周后的肌肉萎缩、感觉减退、肢体麻木、四肢疼痛、四肢发凉各项评分、血清餐后2 h血糖(2 h postprandial blood glucose,2 h PBG)、糖化血红蛋白(glycated hemoglobin,HbA1c)、丙二醛(malondialdehyde,MDA)、肿瘤坏死因子-α(tumor necrosis factor-α,TNF-α)、白细胞介素-23(interleukin-23,IL-23)水平、胰岛素抵抗指数(insulin resistance index,HOMA-IR)值均降低,且相较于B组,A组更低,两组治疗4周后的正中神经感觉神经传导速度(sensory nerve conduction velocity,SNCV)、腓总神经SNCV、正中神经腓总神经运动神经传导速度(motor nerve conduction velocity,MNCV)、腓总神经MNCV、血清总抗氧化能力(T-AOC)水平均升高,且与B组比较,A组较高(P<0.05)。两组均未发生明显不良反应。结论当归四逆汤治疗DPN可有效改善患者临床症状,减轻机体炎症以及氧化应激反应,稳定患者血糖水平,增强神经传导速度,疗效显著,且安全性较高。