Investigation of the molecular mechanism of Danggui Buxue tang in treating lung cancer using network pharmacology and molecular docking techniques.

This study used network pharmacology and molecular docking techniques to investigate the molecular targets and pathways of Danggui Buxue Tang (DBT) in treating lung cancer. The compound-target network was constructed using the Traditional Chinese Medicine Systems Pharmacology Database (TCMSP), and a lung cancer-specific network was created using the GEO database and Cytoscape software. GO and KEGG pathway analyses were performed to understand the biological processes associated with DBT. The key compounds from Astragalus, kaempferol, and quercetin, and the potential targets are IL-6, IL-1ß, FOS, ICAM1, and CCL2. GO enrichment analysis revealed numerous biological process-related entries, while KEGG pathway analysis highlighted the TNF and IL-17 signalling pathways. Molecular docking confirmed the stable binding activity between the main active compounds of DBT and the target proteins. Overall, these findings shed light on the molecular mechanism of DBT in treating lung cancer, providing insights into targets, pathways, and biological processes involved.

Danggui Buxue Tang improves therapeutic efficacy of doxorubicin in triple negative breast cancer via ferroptosis.

ETHNOPHARMACOLOGICAL RELEVANCE: Danggui Buxue Tang (DBT) has been used for over 800 years to enhance Qi and nourish Blood, and it is particularly beneficial for cancer patients. Recent research has shown that combining DBT with chemotherapy agents leads to superior anti-cancer effects, thereby enhancing therapeutic efficacy. AIM OF THE STUDY: The aim of this study was to evaluate the effectiveness of a combination therapy involving doxorubicin (DOX) and Danggui Buxue Tang (DBT) in the treatment of triple-negative breast cancer (TNBC) and to elucidate the underlying mechanisms of action. MATERIALS AND METHODS: In vitro experiments were performed using MDA-MB-231 and 4T1 cells, while in vivo experiments were carried out using MDA-MB-231 xenograft mice. The therapeutic effects of the combination therapy were evaluated using various techniques, including MTT assay, colony formation assay, flow cytometry, transwell assay, immunofluorescence, transmission electron microscopy (TEM), histological analysis, western blotting, and bioluminescence assay. RESULTS: DBT was found to enhance DOX's anti-TNBC activity in vitro by promoting ferroptosis, as evidenced by the observed mitochondrial morphological changes using TEM. The combination therapy was also found to reduce the expression of Nrf2, HO-1, and GPX4, which are all targets for ferroptosis induction, while simultaneously increasing ROS production. Additionally, the combination therapy reduced nuclear accumulation and constitutive activation of Nrf2, which is a significant cause of chemotherapy resistance and promotes cancer growth. In vivo experiments using an MDA-MB-231 xenograft animal model revealed that the combination therapy significantly reduced tumor cell proliferation and accelerated TNBC deaths by modulating the Nrf2/HO-1/GPX4 axis, with no evidence of tissue abnormalities. Moreover, the combination therapy exhibited a liver protective effect, and administration of Fer-1 was able to reduce the ROS formation produced by the DBT + DOX combination therapy. CONCLUSION: This study provides evidence that the combination therapy of DOX and DBT has the potential to treat TNBC by promoting ferroptosis through the Nrf2/HO-1/GPX4 axis.

Danggui Buxue Tang potentiates the cytotoxicity of 5-fluorouracil on colorectal adenocarcinoma cells: A signaling mediated by c-Jun N-terminal kinase.

Danggui Buxue Tang (DBT) is a well-known Chinese herbal recipe often prescribed in clinical treatment for menopausal and cardiovascular symptoms. 5-Fluorouracil (5-FU) is a chemotherapy drug that treats several cancers; however, it causes severe adverse effects and multidrug resistance. Combining natural medications can reduce the side effects of 5-FU use. Hence, we aimed to determine the role of DBT in strengthening the anticancer capabilities of 5-FU in a cultured colorectal adenocarcinoma cell line (HT-29 cell) and xenograft nude mice. HT-29 cells cultured with DBT did not exhibit cytotoxicity. However, co-administration of DBT with 5-FU significantly increased apoptosis and the expression of apoptotic markers. The inhibition of proliferation induced by DBT and 5-FU was shown to be mediated by c-Jun N-terminal kinase signaling. In addition, the potentiation effect of 5-FU and DBT was demonstrated in reducing tumor size, expressions of Ki67 and CD34 in HT-29 xenograft mice. This finding suggests that DBT can work with 5-FU as a novel chemotherapeutic strategy for treating colon cancer.

[The Antiapoptotic Effect of Danggui Buxue Tang and Its Main Components on Hematopoietic Cells in Mice with Bone Marrow Suppression].

OBJECTIVE: To explore the hematopoiesis protection effect of Danggui Buxue Tang (DBT) and its main components Angelica polysaccharide (APS) and Astragalus polysaccharide (ASPS) on myelosuppression mice, and the mechanism of anti-apoptosis of Meg-01 cells. METHODS: Mice were radiated with 4 Gy of 137Csγ ray to establish the model of radiation-induced myelosuppression. DBT, APS or ASPS (10 mg/kg) were injected into irradiated mice. Peripheral blood cell counts were performed on mice before radiation (day 0) and day 7, 14 and 21 after radiation. On the 21st day, poor plasma platelets were collected from mice to detect TPO concentration and then the mice were sacrificed. The femoral bone marrow cells were cultured for colony cell forming units (CFU). Meg-01 cells were cultured without FBS for 24 h to induce apoptosis, and then treated with DBT/APS/ASPS for 72 h. Flow cytometry (FCM) was used to detect early apoptosis (Annexin V), mitochondrial membrane potential (JC-1) and the expression of Caspase-3 to analyze the effect of DBT/APS/ASPS on cell apoptosis. RESULTS: DBT can stimulate the recovery of white blood cells (WBC), red blood cells (RBC) and platelets (PLT) of myelosuppression mice, especially for WBC and PLT (P<0.01, P<0.05). Compared with the control group, the number of BFU-E, CFU-MK and CFU-GM increased after adding DBT (BFU-E & CFU-GM: P<0.05； CFU-MK: P<0.01). The effect of DBT on blood TPO concentration in mice was not obvious (P=0.89). RBC, WBC and PLT were increased in APS group compared with control group (P<0.05). WBC increased after the treatment of ASPS (P<0.05). APS stimulated the formation of CFU-F, CFU-MK and CFU-GM (P<0.05). Only CFU-GM increased in ASPS group(P<0.05). Besides, DBT decreased the apoptosis of Meg-01 cells (P<0.05). The early apoptosis rate and total death rate in APS (100 µg/ml) group were lower than that of control group (P<0.01, P<0.05). The early apoptosis rate of ASPS (100 µg/ml) group was lower than that of control group (P<0.05). JC-1 and Caspase-3 showed that APS (100 µg/ml) significantly reduced apoptosis rate (P<0.01, P<0.05). CONCLUSION: DBT has protective effect on hematopoietic system, especially WBC and PLT, and has anti-apoptotic effect on Meg-01. It was found that the above effects of DBT were mainly caused by APS, and its anti-apoptosis mechanism was carried out mainly through JC-1 and Caspase-3 pathways.

The Latest Research Advances of Danggui Buxue Tang as an Effective Prescription for Various Diseases: A Comprehensive Review.

Danggui Buxue Tang (DBT) is composed of Astragali Radix and Angelicae Sinensis Radix in a weight ratio of 5:1. The recipe of the decoction is simple, and DBT has been widely used in the treatment of blood deficiency syndrome for more than 800 years in China. Studies on its chemical constituents show that saponins, flavonoids, volatile oils, organic acids, and polysaccharides are the main components of DBT. Many techniques such as third-generation sequencing, PCR-denaturing gradient gel electrophoresis, and HPLC-MS have been used for the quality control of DBT. DBT has a wide range of biological activities, including blood enhancement, antagonizing diabetic nephropathy, cardiovascular protection, immunity stimulation, estrogen-like effect, and antifibrosis, among others. In this paper, we summarize the recent research advances of DBT in terms of its components, pharmacological activities, and possible mechanisms of action as well as provide suggestions for further research.

Mechanisms of Danggui Buxue Tang on Hematopoiesis via Multiple Targets and Multiple Components: Metabonomics Combined with Database Mining Technology.

This study aimed to explore the mechanism of action of Danggui Buxue Tang (DBT) with its multiple components and targets in the synergistic regulation of hematopoiesis. Mouse models of hematopoiesis were established using antibiotics. Metabolomics was used to detect body metabolites and enriched pathways. The active ingredients, targets, and pathways of DBT were analyzed using system pharmacology. The results of metabolomics and system pharmacology were integrated to identify the key pathways and targets. A total of 515 metabolites were identified using metabolomics. After the action of antibiotics, 49 metabolites were markedly changed: 23 were increased, 26 were decreased, and 11 were significantly reversed after DBT administration. Pathway enrichment analysis showed that these 11 metabolites were related to bile secretion, cofactor biosynthesis, and fatty acid biosynthesis. The results of the pharmacological analysis showed that 616 targets were related to DBT-induced anemia, which were mainly enriched in biological processes, such as bile secretion, biosynthesis of cofactors, and cholesterol metabolism. Combined with the results of metabolomics and system pharmacology, we found that bile acid metabolism and biotin synthesis were the key pathways for DBT. Forty-two targets of DBT were related to these two metabolic pathways. PPI analysis revealed that the top 10 targets were CYP3A4, ABCG2, and UGT1A8. Twenty-one components interacted with these 10 targets. In one case, a target corresponds to multiple components, and a component corresponds to multiple targets. DBT acts on multiple targets of ABCG2, UGT1A8, and CYP3A4 through multiple components, affecting the biosynthesis of cofactors and bile secretion pathways to regulate hematopoiesis.

Metabolomics study of the effect of Danggui Buxue Tang on rats with chronic fatigue syndrome.

Danggui Buxue Tang (DBT), a traditional Chinese medicine (TCM) formula for 'invigorating qi and enriching blood', has been reported to produce a good effect on chronic fatigue syndrome (CFS). However, the related mechanism remains largely undetermined. This study devised a metabolomics approach with GC-MS combined with pattern recognition to estimate the extent to which DBT alleviated CFS induced by food restriction and force swimming in rats. After 4 weeks of treatment, the endurance capability of rats was significantly better, and the motionless time was significantly shorter in the DBT group than in the CFS model group. Moreover, the activities of superoxide dismutase and glutathione peroxidase increased, whereas the levels of malondialdehyde, interleukin 6, and tumor necrosis factor alpha decreased in the DBT treatment group. Fifteen significantly changed metabolites were observed in the serum of rats with CFS, which was reversed markedly by DBT treatment. Metabolic pathway analysis showed that DBT could possibly alleviate CFS in rats by regulating the biosynthesis of phenylalanine, tyrosine, and tryptophan and the metabolism of glycine, serine, threonine, glycerolipid, glyoxylate, dicarboxylate, and tyrosine. It was observed that the metabolism of glycine, serine, and threonine was most closely related to the improvement in CFS by DBT treatment. This study showed that DBT could improve CFS effectively, and metabolomics was a powerful means to gain insights into the TCM formulas against CFS.

Gut microbiota affects the efficacy of Danggui Buxue Tang by affecting plasma concentration of active ingredients.

ETHNOPHARMACOLOGICAL RELEVANCE: Danggui Buxue Tang (DBT) is a traditional Chinese medicine, which has the function of supporting Qi and enriching blood. Antibiotics can cause Gut microbiota disorder and affect efficacy of DBT. AIM OF THE STUDY: Explore the manner in which Gut microbiota affects the efficacy of Danggui Buxue Tang. MATERIALS AND METHODS: In this study, antibiotics were used to destroy gut microbiota. The changes of DBT efficacy were detected to verify the effect of gut microbiota on DBT efficacy. The changes of gut microbiota was detected using 16S rRNA sequencing, and UPLC-MS/MS was used to analyze the plasma concentration of active ingredients. Correlation analysis was used to establish the relationship between gut microbiota, blood components and drug efficacy, and to explore the role of gut microbiota in the efficacy of DBT. RESULTS: The results showed that the efficacy in the DBT group was significantly improved compared with the control group (p<0.05). Compared with DBT group, the efficacy in antibiotic DBT treatment (ABXDBT) group was significantly reduced, 194 plasma metabolites and 18 DBT blood components were significantly altered in ABXDBT group, and 11 DBT blood components such as caffeic acid and formononetin were significantly decreased. Correlation analysis showed that 6 DBT blood components were related with the decrease of efficacy. Network pharmacology analysis showed that the above 6 DBT blood components participated in the hematopoietic regulation through PI3K-Akt and HIF-1 signaling pathways. Correlation analysis showed that Bacteroides and other intestinal bacteria were related to the absorption of DBT active ingredients. The drug metabolic pathway of gut microbiota was significantly decreased after antibiotic treatment (p = 0.033). CONCLUSIONS: Gut microbiota such as Bacteroides affects the efficacy of DBT by affecting the metabolism and absorption of DBT active ingredients such as caffeic acid and formononetin.

A standardized extract of Danggui Buxue Tang decoction selectively exerts estrogenic activities distinctly from tamoxifen.

More and more menopausal women use Danggui Buxue Tang (DBT) for relieving their symptoms. Concerns for its safety have been raised as it contains phytoestrogen and acts via estrogen receptors (ERs). Our study aimed to determine whether DBT could selectively exert estrogenic activities and interact with tamoxifen in bone, brain, uterus, and breast by using ovariectomized (OVX) rats and ER-positive cells. In OVX rats, DBT induced a 31.4% increase in bone mineral density and restored the mRNA expression of dopamine biomarker in striatum, 3.32-fold for tyrosine hydrolase (p < .001) and 0.21-fold for dopamine transporter (p < .001), which was similar to tamoxifen; tamoxifen, but not DBT, increased uterus weight and Complement component 3 expression by more than twofold (p < .001); unlike tamoxifen, DBT induced mild proliferation in mammary gland. Two-way ANOVA indicated the interactions between them in OVX rats (p < .05) but DBT did not alter the responses to tamoxifen. DBT stimulated proliferation or differentiation and estrogen response element in MCF-7, MG-63, Ishikawa, and SHSY5Y cells and altered the effects of tamoxifen. In summary, DBT exerted estrogenic effects in tissue-selective manner, which was different from tamoxifen. DBT interacted with tamoxifen but did not significantly alter its effects in OVX rats.

Fermentation of Danggui Buxue Tang, an ancient Chinese herbal mixture, together with Lactobacillus plantarum enhances the anti-diabetic functions of herbal product.

BACKGROUND: Danggui Buxue Tang (DBT), an ancient Chinese herbal decoction containing Astragali Radix and Angelicae Sinensis Radix at a ratio of 5: 1, is prescribed for menopausal women. Flavonoids and its flavonoid glycosides are considered as the major active ingredients within the herbal decoction; however, their amount is not controllable during the preparation. Besides, the aglycons within DBT are believed to have better gut absorption and pharmacological efficacy. METHODS: The herbal extract of DBT was fermented with Lactobacillus plantarum. The amounts of flavonoid glucosides and its aglycones in the fermented product were analyzed by using UPLC-MS/MS. In addition, in vitro assays were employed to evaluate the efficacy of the fermented DBT in regulating the activities of α-glucosidase, α-amylase and lipase, as well as their antioxidant capacity (DPPH and T-AOC assays) and anti-glycation property (BSA-methylglyoxal, BSA-fructose, and arginine-methylglyoxal models). RESULTS: The fermentation of DBT with L. plantarum drove a completed conversion of calycosin-7-O-ß-D-glucoside and ononin to calycosin and formononetin, respectively. The chemical transformation could be probably mediated by ß-glycosidase within the fermented product. Several in vitro assays corresponding to anti-diabetic functions were compared between parental DBT against its fermented product, which included the activities against α-glucosidase, α-amylase and lipase, as well as anti-oxidation and anti-glycation. The fermented DBT showed increased activities in inhibiting α-glycosidase, suppressing DPPH radical-scavenging and anti-glycation, as compared to the original herbal product. CONCLUSION: These results suggested that DBT being fermented with the probiotic L. plantarum could pave a new direction for fermentation of herbal extract, as to strengthen its pharmacological properties in providing health benefits.

Danggui Buxue Tang restores antibiotic-induced metabolic disorders by remodeling the gut microbiota.

ETHNOPHARMACOLOGICAL RELEVANCE: Danggui Buxue Tang (DBT) has been used to promote hematopoiesis and relieve myelosuppression in China. Antibiotics can cause myelosuppression through gut microbiota disorders. AIM OF THE STUDY: This study aims to explore the way of DBT to alleviate the metabolic disorder caused by antibiotics. MATERIALS AND METHODS: In this study, 16S rRNA sequencing was used to detect the change of gut microbiota, metabolomics to analyze the change of metabolites. Correlation analysis was used to establishment the correlation between gut microbiota and metabolites. PICRUST 2 was used to predict the function of gut microbiota. RESULTS: Results showed that eighty-two genera of gut microbiota were affected by antibiotic, while twelve were significantly restored after DBT. Seventy-four potential metabolites were significantly different from the antibiotics and DBT. We found significant recovery by the Bacteroides and Rikenellaceae RC9 after DBT. The metabolic pathways influenced by the antibiotic treatment included primary and secondary bile biosynthesis, etc. The metabolic pathways that could be restored after DBT included the primary and secondary bile acid biosynthesis pathway, etc. Through correlation analysis, we found a correlation between the Bacteroides, Rikenellaceae_RC9_gut_group and other potential differential metabolisms such as those of taurodeoxycholic acid, N-phenylacetyl glycine, etc. The functional prediction showed that the biosynthesis of primary bile acid, secondary bile acid was significantly affected. CONCLUSIONS: DBT can restore the gut and reverse the metabolic disorder caused by antibiotics through Bacteroides, and it provides a new medical idea regarding the gut microbiota balance.

[Metabolomics study of Danggui Buxue Tang on treatment of type 2 diabetes mice using UHPLC-Q-TOF-MS].

In this paper, ultra-high-performance liquid chromatography coupled with quadrupole time-of-flight tandem mass spectrometry(UHPLC-Q-TOF-MS)-based metabolomics approach was used to explore the mechanism of Danggui Buxue Tang(DBT) in treating type 2 diabetes mellitus(T2 DM). T2 DM mice model was induced by high-sugar and high-fat fodder and streptozotocin(STZ). The routine indexes such as body weight, blood glucose, plasma insulin, IL-6 and related organ indexes were determined. The UHPLC-Q-TOF-MS technique was used to analyze the metabolism profile of serum samples between the control group and model group, and multiple statistical analysis methods including principal component analysis(PCA) and orthogonal partial least squares discriminant analysis(OPLS-DA) were used to screen and identify biomarkers. Metabolic profiling revealed 16 metabolites as the most potential biomarkers distinguishing mice in model group from those in control group. The metabolomics pathway analysis(MetPA) was used to investigate the underlying metabolic pathways. Seven major metabolic pathways such the valine, leucine and isoleucine biosynthesis, glycerophospholipid metabolism, primary bile acid biosynthesis, taurine and hypotaurine metabolism, phenylalanine metabolism, fatty acid metabolism and biosynthesis of unsaturated fatty acid. Eleven metabolites such as taurocholic acid and palmitic acid were down-regulated in T2 DM mice, and five metabolites such as L-leucine and leukotriene E4 were up-regulated. Moreover, the sixteen biomar-kers of each administration group had a trend of returning to mice in control group. The significantly-altered metabolite levels indicated that DBT can improve the progression of type 2 diabetes by increasing insulin sensitivity, regulating sugar and lipid metabolism disorders, and relieving inflammation.

Danggui Buxue Tang ameliorates bleomycin-induced pulmonary fibrosis in rats through inhibiting transforming growth factor-ß1/Smad3/ plasminogen activator inhibitor-1 signaling pathway.

OBJECTIVE: To investigate the effect of Danggui Buxue Tang (DBT), a decoction from Traditional Chinese Medicine, on bleomycin-induced pulmonary fibrosis in rats, and to propose the possible underlying mechanism. METHODS: Forty male Sprague-Dawley rats were randomly divided into sham group, model group, prednisone group and DBT group. Pulmonary fibrosis rat model was established by intratracheal injection with bleomycin. Body weight and lung index were monitored. Histopathologic examination and collagen deposition were determined using Hematoxylin and eosin (HE) and Masson's trichrome staining. Immunohistochemistry staining was applied to observe the expression of alpha-smooth muscle actin (α-SMA). mRNA expression of α-SMA, collagen Ⅰ and collagen Ⅲ were measured by real-time fluorescence quantitative PCR (RT-qPCR). Inflammatory cytokines, including tumor necrosis factor alpha (TNF-α), interleukin-6 (IL-6) and IL-1ß in serum were detected by Enzyme-linked immunosorbent assay. Alkali hydrolysis method was conducted to investigate the content of hydroxyproline (HYP). Transforming growth factor-ß1 (TGF-ß1), Smad3 and plasminogen activator inhibitor-1 (PAI-1) protein level were examined by Western blot assay. RESULTS: DBT significantly reduced the severity of bleomycin-induced pulmonary fibrosis and inflammation as indicated by minimizing the lost of weight, and by lowering the levels of lung index, inflammation score, Ashcroft score, collagen volume fraction (%), HYP, α-SMA, collagen Ⅰ, collagen Ⅲ, TNF-α, IL-6, IL-1ß, TGF-ß1, Smad3 and PAI-1, consistent with the effect of prednisone. CONCLUSION: Our findings suggest that DBT is able to ameliorate the pulmonary fibrosis, the possible mechanism may involve inhibition of pulmonary inflammation and collagen deposition, possibly via suppressing TGF-ß1/Smad3/PAI-1 signaling pathway.

An oligosaccharide-marker approach to quantify specific polysaccharides in herbal formula by LC-qTOF-MS: Danggui Buxue Tang, a case study.

Polysaccharides have broad bioactivities and are major components of water decoction of herb formulae. However, the quality control of polysaccharides remains a challenge. Oligosaccharide-fragment approach has been considered in elucidating chemical structures of polysaccharides, but never been used for quantitation. Using reference chemicals and a real sample Danggui Buxue Tang (DBT) in this study, an oligosaccharide-marker approach was established to quantify specific polysaccharides. Firstly, linear relationships between parent polysaccharides and hydrolysis-produced daughter oligosaccharides were verified using reference polysaccharides. Then in case of DBT, two fluorescence-labeled oligosaccharides with high specificity to individual parent polysaccharides were selected as markers. They were easily isolated and identified. Their potential in quantification of parent polysaccharides were satisfactorily validated in terms of linearity (r≥0.99), repeatability (RSD ≤ 8.4 %), and spike recovery (≥80 %). This method could be a promising approach for quality assessment of polysaccharides in herbal formulae.

Metabolomic analysis of serum reveals the potential effective ingredients and pathways of Danggui Buxue Tang in promoting erythropoiesis.

Danggui Buxue Tang has been used for menopausal women in China for more than 800 years. However, the potential effective ingredients and pathways require further investigation. The main objective of this work was to explore the potential effective ingredients and pathways. The optimal administration time was optimized by detecting the changes of reticulocytes in peripheral blood. Drug-containing serum (DCS) was taken every 30 min after last administration. Because of the different concentration of effective ingredients absorbed into blood at different time, the pharmacodynamic effect is different. Therefore, bone marrow stromal cells as a member of hematopoietic microenvironment were used to evaluate the pharmacodynamics of DCS. Metabolomics was used to detect changes of metabolites (DBT and endogenous metabolites). The correlation of the metabolites and pharmacodynamics was used to identify the metabolites associated with erythropoiesis. After 14 days, the number of reticulocytes in peripheral blood, erythroid-related cells and erythroid progenitor cells in bone marrow in the DBT group were significantly increased. In vitro experiments showed that DCS at different time had different proliferation effects on BMSCs. Metabolomic analysis showed that the concentration of metabolites in DCS at different time was significantly different. The correlation analysis identified 7 DBT metabolites and 15 endogenous metabolites related to erythropoiesis. 15 endogenous metabolites were finally connected to different pathways. Glutamate is a node molecule. 7 potential effective ingredients of DBT were found. DBT promoted erythropoiesis via promoting the metabolism of glutamate and further affect other pathways.

Metabolomics study of Danggui Buxue Tang on treatment of type 2 diabetes mice using UHPLC-Q-TOF-MS / 中国中药杂志

In this paper, ultra-high-performance liquid chromatography coupled with quadrupole time-of-flight tandem mass spectrometry(UHPLC-Q-TOF-MS)-based metabolomics approach was used to explore the mechanism of Danggui Buxue Tang(DBT) in treating type 2 diabetes mellitus(T2 DM). T2 DM mice model was induced by high-sugar and high-fat fodder and streptozotocin(STZ). The routine indexes such as body weight, blood glucose, plasma insulin, IL-6 and related organ indexes were determined. The UHPLC-Q-TOF-MS technique was used to analyze the metabolism profile of serum samples between the control group and model group, and multiple statistical analysis methods including principal component analysis(PCA) and orthogonal partial least squares discriminant analysis(OPLS-DA) were used to screen and identify biomarkers. Metabolic profiling revealed 16 metabolites as the most potential biomarkers distinguishing mice in model group from those in control group. The metabolomics pathway analysis(MetPA) was used to investigate the underlying metabolic pathways. Seven major metabolic pathways such the valine, leucine and isoleucine biosynthesis, glycerophospholipid metabolism, primary bile acid biosynthesis, taurine and hypotaurine metabolism, phenylalanine metabolism, fatty acid metabolism and biosynthesis of unsaturated fatty acid. Eleven metabolites such as taurocholic acid and palmitic acid were down-regulated in T2 DM mice, and five metabolites such as L-leucine and leukotriene E4 were up-regulated. Moreover, the sixteen biomar-kers of each administration group had a trend of returning to mice in control group. The significantly-altered metabolite levels indicated that DBT can improve the progression of type 2 diabetes by increasing insulin sensitivity, regulating sugar and lipid metabolism disorders, and relieving inflammation.

A novel approach based on metabolomics coupled with network pharmacology to explain the effect mechanisms of Danggui Buxue Tang in anaemia.

Danggui Buxue Tang (DBT) is a famous Chinese medicinal decoction. Mechanism of DBT action is wide ranging and unclear. Exploring new ways of treatment with DBT is useful. Sprague-Dawley(SD) rats were randomly divided into 3 groups including control (NC, Saline), the DBT (at a dose of 8.10 g-1), and blood deficiency(BD) (Cyclophosphamide (APH)-andCyclophosphamide(CTX)-induced anaemia). A metabolomics approach using Liquid Chromatography-Quadrupole-Time-of-Flight/Mass Spectrometry (LC/Q-TOFMS) was developed to perform the plasma metabolic profiling analysis and differential metaboliteswerescreened according to the multivariate statistical analysiscomparing the NC and BD groups, andthe hub metabolites were outliers with high scores of the centrality indices. Anaemia disease-related protein target and compound of DBT databases were constructed. The TCMSP, ChemMapper and STITCH databases were used to predict the protein targets of DBT. Using the Cytoscape 3.2.1 to establish a phytochemical component-target protein interaction network and establish a component, protein and hub metabolite protein-protein interaction (PPI) network and merging the three PPI networks basing on BisoGenet. The gene enrichment analysis was used to analyse the relationship between proteins based on the relevant genetic similarity by ClueGO. The results shown DBT effectively treated anaemia in vivo. 11 metabolic pathways are involved in the therapeutic effect of DBT in vivo; S-adenosyl-l-methionine, glycine, l-cysteine, arachidonic acid (AA) and phosphatidylcholine(PC) were screened as hub metabolites in APH-and CTX-induced anaemia. A total of 288 targets were identified as major candidates for anaemia progression. The gene-set enrichment analysis revealed that the targets are involved in iron ion binding, haemopoiesis, reactive oxygen species production, inflammation and apoptosis. The results also showed that these targets were associated with iron ion binding, haemopoiesis, ROS production, apoptosis, inflammation and related signalling pathways. DBT can promote iron ion binding and haemopoiesis activities, restrain inflammation, production of reactive oxygen, block apoptosis, and contribute significantly to the DBT treat anaemia.

Danggui Buxue Tang, an ancient Chinese herbal decoction, protects ß-amyloid-induced cell death in cultured cortical neurons.

BACKGROUND: Danggui Buxue Tang (DBT) is a historical Chinese herbal decoction, and which has more than 800 years of applications. This herbal decoction solely contains two materials: Astragali Radix (AR) and Angelicae Sinensis Radix (ASR) at a weight ratio of 5:1. Clinically, DBT aims to improve anemia syndrome. In complementary and alternative medicine theory, the cause of neurodegenerative disease is proposed to be related with anemia. In line to this notion, low levels of hemoglobin and red blood cell have been reported in patients suffering from Alzheimer's disease (AD), a chronic neurodegenerative disease caused by ß-amyloid peptide (Aß) accumulation. Therefore, we would like to probe the neuroprotective functions of this ancient herbal formula in vitro. METHOD: The neuroprotective effects of DBT in the Aß-induced cell death were detected in cultured cortical neurons by multiple techniques, i.e. confocal and western blot. RESULTS: In the cultures, application of DBT reduced Aß-induced apoptosis rate in a dose-dependent manner. In Aß-treated cortical neurons, the expression ratio of Bcl2 to Bax was altered by DBT. In parallel, application of DBT markedly suppressed the Aß-induced expressions of apoptotic markers, i.e. cleaved-caspase 3/9 and PARP. CONCLUSION: Taken these results, DBT shows promising protective effects against Aß-induced stress or insult in cultured neurons.

Danggui Buxue Tang promotes the adhesion and migration of bone marrow stromal cells via the focal adhesion pathway in vitro.

ETHNOPHARMACOLOGY RELEVANCE: Danggui Buxue Tang has been used in China to treat clinical anemia for more than 800 years. However, there is no scientific report on its effect on bone marrow stromal cells. AIM OF THE STUDY: Here, we aimed to explore the effect of Danggui Buxue Tang on bone marrow stromal cell adhesion and migration. MATERIALS AND METHODS: Bone marrow stromal cells were used as a model to evaluate the effect of Danggui Buxue Tang on the adhesion and migration of bone marrow stromal cells. RNA-sequencing, quantitative polymerase chain reaction, and western blotting were used to detect and confirm the expression of genes related to the focal adhesion pathway before and after drug delivery. RESULTS: Danggui Buxue Tang significantly increased the number of bone marrow stromal cells. After 12 days of 16 mg/mL Danggui Buxue Tang treatment, bone marrow stromal cells were significantly increased (by 0.527 ±â€¯0.008 fold; p < 0.001) as compared to the control group (0.180 ±â€¯0.019). The effect was not due to enhanced cell proliferation, as there was no difference in the cell cycle (p > 0.05). The adhesion area of a single cell was doubled by Danggui Buxue Tang treatment (p < 0.001), and the time required for cell adhesion to a Petri dish was shortened. Thus, Danggui Buxue Tang increases the number of bone marrow stromal cells by promoting adhesion. Danggui Buxue Tang also significantly promoted bone marrow stromal cell migration (p <  0.001). Transcript analysis revealed that the focal adhesion and PI3K-Akt signaling pathways were activated. Expression analysis confirmed that the gene and protein expression of focal adhesion-related factors were upregulated. CONCLUSION: Danggui Buxue Tangaffects bone marrow stromal cell adhesion and migration by enhancing the focal adhesion pathway in vitro, and bone marrow stromal cells are a target of DBT-regulated hematopoiesis, and the active ingredients of DBT involved in the effects require further investigation.

Research Progress on Pharmacodynamic Material Basis and Quality Control of Danggui Buxue Tang / 中国实验方剂学杂志

Danggui Buxue Tang(DBT) is a famous classical formula of traditional Chinese medicine(TCM) for invigorating Qi and activating blood circulation.It is composed of Angelicae Sinensis Radix and Astragali Radix.It has the effect of enriching blood,invigorating Qi and regulating immunity,and has a high application value in clinical treatment.Because of its definite curative effect and simple compatibility,it has become a hot spot in the research field of TCM.This paper summarized and analyzed the research status of DBT from the pharmacological action,pharmacodynamic material basis,pharmacokinetics,quality control,compatibility and decoction process,so as to provide reference for the development of DBT and formulating its quality standard.