Study on Tanshinone Extracted from Salvia miltiorrhiza Bge. Dregs

[Objective]The aim was to extract tanshinone from Salvia miltiorrhiza Bge. dregs and to determine tanshinone components. [Method]Organic solvent method was adopted to extract tanshinone from S. miltiorrhiza dregs and TLC was used to determine the optimum extraction solvent. The components of tanshinone were measured with HPLC. [Result]Ether was the best solvent to extract tanshinone from S. miltiorrhiza dregs. After water immersion,dry dregs of S. miltiorrhiza and Panax notoginseng were extracted with ethanol to obtain fat-soluble extracts. Then with ether as the solvent for Soxhlet extraction,the yield of crude tanshinone was 2.17%. The HPLC detection showed that the contents of tanshinone Ⅱ A,methylene tanshinquinone,cryptotanshinone,tanshinone Ⅰ were 3.62%,1.02%,2.56%,2.75% respectively. [Conclusion]The components of tanshinone in S. miltiorrhiza dregs were basically the same as tanshinone in medicine S. miltiorrhiza. S. miltiorrhiza dregs could be used as a kind of tanshinone resource,which has the value of development and utilization.

Effects of Salvia miltiorrhiza Bge.f.alba on neuronal regeneration following cerebral ischemia/reperfusion

BACKGROUND： Subsequent to cerebral ischemic injury, endogenous neural stem cells are activated, but ischemia-induced neuronal loss is not compensated by ischemic injury-induced neural regeneration. Salvia （S.） miltiorrhiza Bge.f.alba （Baihua Danshen, a Chinese herbal medicine） could enhance learning and memory functions, as well as promote neural regeneration. OBJECTIVE： To observe the effects of S. miltiorrhiza Bge.f.alba on recovery from cerebral ischemia-reperfusion injury, and the influence on neuronal regeneration and differentiation. DESIGN, TIME AND SETTING： Randomized, controlled, animal experiments were performed at the Experimental Animal Center and Neurobiology Laboratory of Taishan Medical College in September of 2006. MATERIALS： S. miltiorrhiza Bge.f.alba was provided by Taishan Medical College Botanic Garden, Taian, China; dl-3n-butylphthalide （NBP） soft capsule was purchased from NBP Pharmaceutical, Shijiazhuang, China; mouse anti-bromodeoxyuridine antibody, rabbit anti-NF200 antibody, and bromodeoxyuridine were purchased from Sigma, Louis, MO, USA; Annexin V-fluorescein isothiocyanate/PI apoptosis kit was purchased from Nanjing Comissariado Biological Technology Development, Nanjing, China. METHODS： Adult Sprague Dawley rats were randomly assigned to sham surgery, model （cerebral ischemia and reperfusion, without administration）, S. miltiorrhiza Bge.f.alba, and NBP groups. Following establishment of the cerebral ischemia/reperfusion model, S. miltiorrhiza Bge.f.alba or NBP （1 mL/100 g） was respectively perfused at 30 minutes following cerebral ischemia/reperfusion. MAIN OUTCOME MEASURES： Alterations in cerebral blood flow before and after ischemia/reperfusion, NF200- and bromodeoxyuridine-double positive cells in striatum of affected tissues, as well as neuronal apoptosis rate at days 5 and 7 following cerebral ischemia/reperfusion. RESULTS： Subsequent to cerebral ischemia reperfusion, cerebral blood flow was reduced. Following treatment with S. miltiorrhiza Bge.f.alba, cerebral blood flow significantly increased （P 〈 0.05）. NBP treatment was inferior to S. miltiorrhiza Bge.f.alba with regard to stabilization of cerebral blood flow （P 〈 0.05）. S. miltiorrhiza Bge.f.alba significantly increased the number of newly formed neurons in rats following cerebral ischemia （P 〈 0.05） and significantly reduced neuronal apoptosis （P 〈 0.05）, with no significant difference compared with NBP treatment （P 〉 0.05）. CONCLUSION： S. miltiorrhiza Bge.f.alba significantly increased cerebral blood flow, reduced neuronal apoptosis, and promoted neuronal regeneration in rats with cerebral ischemia/reperfusion impairment.

Visualizing the spatial distribution and alteration of metabolites in continuously cropped Salvia miltiorrhiza Bge using MALDI-MSI

Salvia miltiorrhiza Bge(SMB)has long been used in traditional Chinese medicine to treat cardiovascular and cerebrovascular diseases.Growing clinical usage has led to a huge demand for artificial planting of SMB.Thus,continuous cropping of SMB is an important challenge that needs to be addressed.Continuous cropping can alter the metabolic profile of plants,resulting in poor growth and low yield.In this study,we tried to image the spatial location and variation of endogenous metabolites in continuously cropped SMB using matrix-assisted laser desorption/ionization mass spectrometry imaging(MALDIMSI).Spatially resolved expressions of tanshinones,salvianolic acids,polyamines,phenolic acids,amino acids,and oligosaccharides in normal and continuously cropped SMB roots were compared.The expressions of dihydrotanshinone Ⅰ,tanshinone Ⅱ A,dehydromiltirone,miltirone,dehydrotanshinone ⅡA,spermine,salvianolic acid B/E,tetrasaccharide,and pentasaccharide in continuously cropped SMB roots were much lower than those in normal roots.There was little difference in the expressions of caffeic acid and salvianolic acid A in normal and continuously cropped SMB roots.Ferulic acid was more widely distributed in xylem of normal SMB but strongly expressed in xylem,phloem,and cambium of continuously cropped SMB.The spatially resolved metabolite information enhances our understanding of the metabolic signature of continuously cropped SMB and also provides insights into the metabolic effects of continuous cropping in other plants.

Effect of Salvia Miltiorrhiza Bge on Left Ventricular Hypertrophy and the Expression of Tumor Necrosis Factor-α in Spontaneously Hypertensive Rats

The effects of salvia miltiorrhiza Bge (SMB) on left ventricular hypertrophy (LVH) and the expression of tumor necrosis factor-α (TNF-α) in the left ventricle of spontaneously hypertensive rats and the action mechanism were investigated. Normal Wistar-kyoto (WKY) rats were used as negative control, and spontaneously hypertensive rats (SHR) were randomly assigned to receive pla- cebo or SMB. SMB (1 g/kg·d) was injected intraperitoneally for 12 weeks. Systolic blood pressure (SBP) and left ventricular mass index (LVMI) were measured. HE, VG and immunohistochemical staining combined with computed morphometry were employed to evaluate the cardiomyocyte size, diameter, the collagen volume fraction (CVF), perivascular circumferential area (PVCA), and tumor necrosis factor-α (TNF-α) expression in the left ventricular tissue. The results showed, as compared with WKY rats, the SBP, LVMI, cardiomyocyte size, diameter, CVF, PCVA, and TNF-α expression were increased markedly in the 20-week-old spontaneously hypertensive rats. SMB decreased LVMI (P<0.01), size of cardiomyocytes (P<0.01), collagen volume fraction (P<0.01), perivascular circum- ferential area (P<0.01), and TNF-α expression (P<0.01), but had no effect on SBP (P>0.05). It was suggested that chronic administration of SMB could inhibit and reverse the development of LVH in spontaneously hypertensive rats independent of BP. TNF-α may be involved in the reversal mecha- nism of LVH by SMB.

Molecular Identification of Salvia miltiorrhiza Bge. and Its Adulterants Based on ITS2 Sequences

[ Objectives] The study was conducted to investigate the molecular identification of Salvia miltiorrhiza Bge. and its adulterants by DNA barcoding andspecific primer PCR. [ Methods] With ITS2 sequenceas DNA barcode, the materials were amplified by PCR and sequenced, and the NJ phylogenetic tree was constructed. The secondary structure of ITS2 was predicted by database and its website established by Koetschan et al. , and the self-designed primers were used to carry out specific primer PCR identification. [Results] ITS2 sequence length was around 470 bp. The results of cluster analysis showed that S. miltiorrhiza Bge. and its adulterants were clustered on different branches and showed monophyly. The comparison of secondary structure showed that S. miltiorrhiza Bge. had little differences from S. przewalskii, while there were significant differences from A. lappa in the number, size and location of stem-loop and the rotation angle of the spiral arm from the central ring. The specific primers could distinguish the S. miltiorrhiza Bge. and its counterfeits by PCR technique. [Conclusions] DNA barcoding and specific primer PCR are effective in distinguishing S. miltiorrhiza Bge. and its adulterants, and it has an important application foreground in the identification of Chinese herbal medicines.

Effects of salvia miltiorrhiza bge on myocardial fibrosis in hypertensive rats

Objective: To study the effects of Salvia Miltiorrhiza Bge (SMB) on myocardial fibrosis in hypertension in rats. Methods: Normal Wistar kyoto rats served as negative control (group A) . The rats with hypertension were divided into 2 groups: the hypertension group (group B) which served as the positive control and the SMB-treated hypertension group (group C). The effects of SMB on the systolic pressure, the myocardial content of aldosterone (ALD) and nitric oxide (NO) and the activity of superoxide dismutase (SOD) in the myocardium were detected. Results: The systolic pressure of the rats of group C showed no marked change after the administration of SMB and showed no difference from that of the rats of group B. The content of collagen Ⅰ and Ⅲ of the left ventricle, the collagen Ⅰ /collagen Ⅲ ratio and the content-of ALD were lower in group C than in group B and higher in group C than in group A. The content of NO and the activity of SOD in the myocardium were higher in group C than in group B and lower in group C than in group A. Conclusion: It was concluded that SMB was able to prevent or reverse the progress of myocardial fibrosis resulting from hypertension. The mechanism of this effect of SMB might be due to the fact that SMB can decrease the collagen synthesis and ALD content and increase collagen decomposition, NO content and SOD activity in the myocardium.

Protective effect and possible mechanisms of Salvia miltiorrhiza Bge. for the treatment of diabetic nephropathy: A systematic review and meta-analysis of animal studies

Objective:To explore the protective effect and potential mechanisms of danshen root(Salvia miltiorrhiza Bge.,S.miltiorrhiza) and its extracts for the treatment of diabetic nephropathy(DN).Methods:Preclinical studies of S.miltiorrhiza and its extracts on DN were systematically searched in nine databases.The primary outcomes were blood glucose,kidney function,proteinuria,and renal histopathology.The secondary outcomes included the related mechanisms.The methodological quality of animal studies was assessed based on the risk of bias tool of the Systematic Review Centre for Laboratory Animal Experimentation(SYRCLE) for animal studies.Meta-analysis was performed using R software(version 4.1.2).Results:Twenty-nine animal experimental studies that met the eligibility criteria were included in this study.Compared to the control group,S.miltiorrhiza reduced the serum creatinine,blood urea nitrogen,24-h urine protein,24-h urine albumin,blood glucose,and kidney index(kidney weight/body weight),and alleviated renal pathological damage.In terms of the mechanism of action,compared to the control group,S.miltiorrhiza reduced the levels of transforming growth factor β1,collagen Ⅳ,malondialdehyde,tumor necrosis factor α,interleukin-6,and monocyte/macrophage(ED-1),and increased the levels of superoxide dismutase,glutathione peroxidase,nuclear factor E2-related factor 2,and heme oxygenase-1.Conclusion:The existing evidence shows that S.miltiorrhiza has beneficial effects on the animal model of DN,and its mechanism is mainly related to improving kidney fibrosis,oxidative stress,and inflammatory response.

Informatics-based prediction of molecular networks targeted by active ingredients in Danshen (Salvia miltiorrhiza)

Salvia miltiorrhiza (Chinese, Danshen) is one of the most famous traditional herbs, and has been used to treat cardiovascular disease. Despite the wide application of Danshen in China, the mechanisms of its bioactive components are poorly understood. The present study used bioinformatics to identify possible mechanisms by which Danshen treats cardiovascular disease. Possible human protein targets of Danshen were identified in the PubChem database, possible human gene targets of cardiovascular disease were identified in the NCBI database, and then both sets of targets were analyzed using Ingenuity Pathway Analysis to predict molecular networks affected by Danshen in cardiovascular disease. The results suggest that signaling proteins affected by Danshen in cardiovascular disease, which include FASN, PAFAH1B2, PLA2G7, PAFAH1B3 and IL1B, are involved primarily in LXR/RXR activation, atherosclerosis signaling, hepatic fibrosis/hepatic stellate cell activation, acute phase response signaling. The main networks affected by Danshen are predicted to involve in cellular movement, immune cell trafficking, hematological system development and function;DNA replication, recombination, and repair, cancer, hematological disease;cardiovascular disease, organismal injury and abnormalities, tissue morphology.These results identify several specific proteins and pathways that may be affected by Danshen in cardiovascular disease, and they illustrate the power of integrative bioinformatics and chemical fragment analysis for focusing mechanistic studies.

Tyrosine Aminotransferase Gene (SmTAT) Revealed Genetic Diversity and Phylogeny of Cultivated Danshen (Salvia miltiorrhiza) Populations

Chinese traditional medicine Danshen is the radix of the perennial herbs of Salvia miltiorrhiza Bunge, which has a variety of pharmacological effects and is traditionally and extensively applied clinically to treat cardiovascular disorders. In this research, the genomic genes for tyrosine aminotransferase (TAT) of 38 cultivated populations of Danshen in China were cloned and bioinformatic analyses were conducted to reveal its genetic diversity and phylogeny. The full-length SmTAT was 2296 - 2444 bp including 6 exons (encoding 411 amino acids) and 5 introns. Overall, the SmTAT genes in cultivated Danshen populations are highly conserved with a relative low level of genetic diversity. The spliced exons (1236 bp) had 23 SNP variations with a rate of 1.86%, of which 22 occurred in the white flower S. miltiorrhiza Bge.f.alba population (W-SCHY-W-1) and led to 5 amino acid variations. The entire 290 SNP variations with a rate of 24% in the 5 introns occurred exclusively in W-SCHY-W-1. Phylogenetic trees based on the full-length, combined introns, the spliced exons, and the deduced amino acid sequences of SmTAT all showed a two-clade basic structure with W-SCHY-W-1 uniquely standing alone. The SmTAT gene of the white flower population (W-SCHY-W-1) is unique and especially rich in variations. The first time clarified genomic SmTAT gene structure and genetic diversity in cultivated Danshen populations laid an excellent foundation for further studies on the biosynthesis of bioactives and the molecular breeding of Danshen as well as in plant tyrosine metabolism.

丹参(Salvia miltiorrhiza)中一对具有新奇结构的立体异构体的结构测定

为了进一步弄清丹参的化学成分，应用化学和色谱分离方法从丹参中分离到一个白色粉末固体，经综合运用先进的波谱分析手段，包括１Ｈ－１ＨＣＯＳＹ、１Ｈ－１３ＣＣＯＳＹ、ＣＯＬＯＣ、ＮＯＥ等二维核磁共振谱确定了它们的化学结构为一对具有螺环缩酮内酯结构的新二萜类立体异构体化合物．

Rheum palmatum L. and Salvia miltiorrhiza Bge. Alleviates Acute Pancreatitis by Regulating Th17 Cell Differentiation: An Integrated Network Pharmacology Analysis, Molecular Dynamics Simulation and Experimental Validation

Objective: To identify the core targets of Rheum palmatum L. and Salvia miltiorrhiza Bge.,(Dahuang-Danshen, DH-DS) and the mechanism underlying its therapeutic efficacy in acute pancreatitis(AP)using a network pharmacology approach and validate the findings in animal experiments. Methods: Network pharmacology analysis was used to elucidate the mechanisms underlying the therapeutic effects of DH-DS in AP. The reliability of the results was verified by molecular docking simulation and molecular dynamics simulation.Finally, the results of network pharmacology enrichment analysis were verified by immunohistochemistry,Western blot analysis and real-time quantitative PCR, respectively. Results: Sixty-seven common targets of DH-DS in AP were identified and mitogen-activated protein kinase 3(MAPK3), Janus kinase 2(JAK2), signal transducer and activator of transcription 3(STAT3), protein c-Fos(FOS) were identified as core targets in the protein interaction(PPI) network analysis. Gene ontology analysis showed that cellular response to organic substance was the main functions of DH-DS in AP, and Kyoto Encyclopedia of Genes and Genomes analysis showed that the main pathway included Th17 cell differentiation. Molecular docking simulation confirmed that DH-DS binds with strong affinity to MAPK3, STAT3 and FOS. Molecular dynamics simulation revealed that FOS-isotanshinone Ⅱ and STAT3-dan-shexinkum d had good binding capacity. Animal experiments indicated that compared with the AP model group, DH-DS treatment effectively alleviated AP by inhibiting the expression of interleukin-1β, interleukin-6 and tumor necrosis factor-α, and blocking the activation of Th17 cell differentiation(P<0.01). Conclusion: DH-DS could inhibit the expression of inflammatory factors and protect pancreatic tissues,which would be functioned by regulating Th17 cell differentiation-related m RNA and protein expressions.

Short term effect of Salvia miltiorrhiza in treating rat acetic acid chronic gastric ulcer and long term effect in preventing recurrence

AIM To study the short term effect of Danshen ( Salvia miltiorrhiza ) on acetic acid induced chronic gastric ulcer in rats and its long term effect in preventing recurrence. METHODS Rats with acetic acid induced gastric ulcer were treated with Danshen and cimetidine for 30 days. Traditional gastric mucosal auto radiography and 3H TdR incorporation into gastric mucosa in vitro were employed to study the effects of Danshen in rat acetic acid induced chronic gastric ulcer, including ulcer index (UI), ulcer inhibitory rate (IR) and label rate (LR). RESULTS On the day 5, 30 and 126 of ulcer making, the UI in the Danshen group was obviously lower than that in the cimetidine group and the control group (42 3±3 9, 3 6±1 2, 4 4±2 3; 49 1±3 6, 5 9±1 4, 9 2±1 3; 61 0±3 8, 8 9±2 5, 12 4±2 4, respectively, P <0 01), the IR (%) in the Danshen group was obviously higher than that in the cimetidine group (31, 59, 64 8; 19, 33, 26, respectively), and the LR in the Danshen group was obviously higher than that in the cimetidine group and the control group (10 0±0 5, 16 2±0 8, 15 0±0 6; 9 0±0 5, 13 9±0 6, 10 8±0 7; 6 5±0 7, 10 1±0 5, 8 0±0 7, respectively, P <0 01). There was no obvious difference in UI in the Danshen group on day 30 as compared with that on day 126. CONCLUSION Danshen is effective in promoting ulcer healing and preventing recurrence. The mechanism of action is to strengthen the gastric mucosal barrier and to promote the gastric mucosal cell proliferation along the edge of the ulcer.

Progress in research into the mechanism of Radix salviae miltiorrhizae in treatment of acute pancreatitis

BACKGROUND: Acute pancreatitis (AP) is a common acute abdomen with high mortality, multiple complications and complicated causes. There is no effective therapy for AP. Radix salviae miltiorrhizae (Danshen), a traditional herbal medicine, has a low price and a wide range of clinical applications. It is effective to promote blood flow, eliminate stagnancy, and relieve pain. It is also found to be effective in treating AP. We reviewed the progress in research into the mechanism of Radix salviae miltiorrhizae in treatment of AP. DATA SOURCES: An english-language literature search was conducted using MEDLINE (1988-2005) on Radix salviae miltiorrhizae (Danshen) and acute pancreatitis. RESULTS: The mechanisms of Danshen in the treatment of AP include improvement of microcirculatory disturbances; elimination of oxygen free radicals; modulation of the metabolism of lipid inflammatory mediator; and blocking of calcium inflow and prevention of calcium overload.CONCLUSION: Danshen can effectively reduce the mortality and complications of AP.

不同垄作方式和种植密度对丹参产量与主要成分含量的影响

为探究不同栽培方式和生长时期对丹参根与地上部产量和主要活性成分含量的影响,本研究以紫花丹参为试验材料,采用小垄单行[三种密度:H1(8万株·hm^(-2))、H2(10万株·hm^(-2))、H3(13.3万株·hm^(-2))]与大垄双行[三种密度:H4(8万株·hm^(-2))、H5(10万株·hm^(-2))、H6(13.3万株·hm^(-2))]两种垄作方式,动态取样,测定并分析不同垄作方式、种植密度和生长时期的单株重、产量、主要活性成分含量及积累规律。结果表明,大垄双行丹参单株干重、产量、根的主要活性成分含量平均值均高于小垄单行。根的单株干重和产量的最佳处理分别为H5(48.09 g)、H4(5986.69 kg·hm^(-2)),均在11月19日最高;地上部单株干重和产量的最佳处理均为H4(50.34 g、6712.75 kg·hm^(-2)),均在10月14日最高。根中主要活性成分总含量(总丹参酮+总黄酮+总酚酸)在两种垄作方式下均呈“升-降-升”的变化趋势,最佳处理为H4(295.4 mg·g^(-1)),在9月7日最高;叶、茎中(总黄酮+总酚酸)总含量的最佳处理分别为H4(238.42 mg·g^(-1))、H6(122.43 mg·g^(-1)),均在10月14日最高;丹参酮ⅡA、丹参酮I、隐丹参酮和丹酚酸B四种活性成分总含量的最佳处理为H6(63.23 mg·g^(-1))。综上,大垄双行栽培方式优于小垄单行。本研究结果为丹参的合理种植及根与地上部综合开发利用提供了理论依据。

山楂丹参分散片的制备工艺研究

目的考察山楂丹参分散片最佳制备工艺。方法以丹参药材中丹参素钠、山楂药材中金丝桃苷为指标,采用L_(9)(3^(4))正交试验设计,对丹参、山楂提取工艺开展研究;通过对山楂丹参分散片中填充剂、润湿剂、崩解剂的考察,以分散均匀度为考察指标,对山楂丹参分散片处方和工艺进行筛选。结果山楂丹参分散片的最佳制备工艺为取丹参药材,加10倍量水回流提取3次,每次2 h,取山楂药材,用10倍量75%乙醇回流提取2次,每次1 h,分别将药液浓度至1.0 g/mL,并通过AB-8型大孔吸附树脂柱洗脱、浓缩、干燥,将上述丹参、山楂提取物混匀,过80目筛,再分别加入微晶纤维素、硫酸钙、羧甲基纤维素钠、交联羧甲基纤维素钠(过100目筛),混合均匀,以50%乙醇为黏合剂,24目筛制粒,60℃干燥。结论按最佳制备工艺制备的丹参、山楂提取物中丹参素钠、金丝桃苷含量较高;山楂丹参分散片在3 min内分散均匀,各项指标均符合2020年版《中华人民共和国药典》(四部)规定,表明山楂丹参分散片制备工艺稳定可行,筛选处方合理,可进一步研发。

丹参对糖尿病肾病保护作用及机制研究

糖尿病肾病(diabetes nephropathy,DN)是导致终末期肾脏病的首位致病因素,严重威胁患者生命健康。传统中医药在糖尿病肾病的治疗中具有重要潜力作用,丹参作为活血化瘀药代表,具有活血祛瘀、清心除烦之功。经研究发现,丹参含有丹酚酸、丹参酮、挥发油、多糖、含氮类化合物等多种成分,能够通过多途径多靶点改善肾小球超滤过状态和间质纤维化等病理改变,其中丹酚酸类和丹参酮类是丹参发挥糖尿病肾病保护作用的主要生物活性成分,具有降糖、调脂、抗炎、抗氧化应激、改善血流动力学、纠正肠道菌群紊乱、调节自噬水平等多种药理作用。该文参考近年来丹参相关制剂干预糖尿病肾病的临床研究和动物实验,对丹参在糖尿病肾病发生发展过程中起到的作用机制进行归纳总结,以期为临床应用丹参治疗糖尿病肾病提供更好的治疗策略和理论依据。

丹参及其有效成分对心血管系统的药理机制研究进展

中国传统药材丹参因极佳的活血祛瘀、通经止痛、清心除烦等功效历来被广泛用于医疗实践中,尤以在心血管系统中的应用突出。现代研究发现,丹参及其活性成分具有抗凝、降脂、抗血栓形成、抗炎抗氧化应激、降压、保护心肌细胞、减少心肌细胞凋亡率、保护血管和促进血管扩张、改善线粒体功能障碍和微循环、防治心室肥大等作用,使得其对心血管系统疾病有着良好的防治效果。综述丹参及其有效活性成分从抗动脉粥样硬化、保护心肌细胞、保护血管、改善心肌缺血和缺血再灌注损伤、防治高血压和心室肥大等内容,力求为丹参在心血管系统疾病的应用和研究提供参考。

丹参有效成分及药理作用研究进展

丹参是一种多年生植物,属于唇形科、丹参属,是一种遮荫草本植物。唇形科植物丹参的干燥根和根茎在中国通常被称为丹参,作为广泛使用的传统中药有着近2000年悠久历史,具有活血化瘀、通经止痛、清心除烦、凉血消痈之功效。丹参的有效成分复杂,并且具有多种药理作用。丹参的化学成分主要为水溶性的酚酸类以及脂溶性的丹参酮类化合物,该植物及其提取物具有抗炎、抗氧化、抗动脉粥样硬化、抗肿瘤、抗纤维化、糖尿病肾病保护等药理作用。文章参阅近些年文献以及相关研究深入阐述丹参有效成分以及药理作用,以期为丹参临床应用研究提供理论依据。目前关于丹参的药理作用研究虽取得了一定的成果,但对其化学成分及药理机制的研究尚不完善,后续可从细胞、组织、分子生物学、代谢学等多学科、多方面进行深入研究,以期为明确丹参的有效成分及开展丹参有效成分机制和临床应用研究提供理论依据。

丹参酚酸类化合物的合成生物学研究进展

丹参酚酸类化合物是丹参发挥保护心血管系统、抗肿瘤与抗纤维化等多种药理作用的一类关键物质基础。以合成丹酚酸A、丹酚酸B和迷迭香酸等丹参酚酸类化合物为目标的微生物细胞工厂的构建,可以实现丹参酚酸类化合物异源高效合成,缓解临床对丹参药材的用药压力。本文就丹参酚酸类化合物的合成生物学、生物合成关键催化酶及其代谢调控等研究现状进行了归纳分析,以期为丹参酚酸类化合物的高效合成与资源应用提供科学依据。

丹参品种、产地及栽培历史本草考证

丹参为我国常用大宗中药材,历代本草均有记载,药用历史悠久,功效显著,具有活血止痛、宁心安神的作用,为常用活血化瘀药,临床医疗价值较高,在治疗心肌缺血、改善肝功能、保护肾脏、对抗肿瘤等方面具有较好的效果。查阅文献发现,近年来对丹参的研究大多集中在药理成分、临床等方面,鲜有从古籍文献出发对丹参品种、产地及栽培历史进行研究。通过系统查阅丹参古今文献发现,丹参近缘品种较多,在民间应用和地方入药中同属多种植物的根均作丹参用;在清代以前为野生丹参,清代以后才出现人工栽培丹参,以山东、四川丹参质量最好;各地虽有栽培,但是栽培品种混杂,品质退化严重,质量参差不齐,为此,有必要对丹参的品种、产地及栽培历史进行考证,为丹参正本清源及资源的进一步开发利用提供理论基础和现实依据。