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Publication
Journal: Zhongguo Zhongyao Zazhi
April/2/2020
Abstract
With the improvement of living standard,the theory of " medicine and food homology" has developed rapidly in the field of diet,medicine and health preservation. In recent years,many literatures have been reported on the active ingredients and pharmacological effects of medicinal and edible plants,but relatively few reports have been reported on their safety investigation. Therefore,to further evaluate the quality and safety of medicinal and edible plants,Astragali Radix,Codonopsis Radix and Laminariae Thallus were selected as our research objects in this study. Moreover,the pollution level and the potential health risk of heavy metals were deeply assessed in different types of medicinal and edible plants. Especially,the contents of chromium,copper,arsenic,cadmium,mercury and lead in these three herbs were determined by inductively coupled plasma mass spectrometry( ICP-MS),and their health risk level was evaluated by target hazard coefficient method. The results showed that under the international heavy metal limit standard( ISO 18664-2015,GB 2762-2017),the over-standard rates were 25%,77% and 100% in 16 batches of Astragali Radix,26 batches of Codonopsis Radix and 9 batches of Laminariae Thallus,respectively. Besides,the values of target hazard quotients( THQ) for adults and children are 0. 028 244,0. 063 505 and 0. 014 485,0. 032 568 in Astragalus membranaceus and Codonopsis pilosula,respectively,which were higher than the standard values of 0. 02 and 0. 011 25. While,the total heavy metals THQ values for adults and children are 0. 023 734 and 0. 020 287 in Laminariae Thallus,which were much higher than the standard values of 0. 008 0 and 0. 007 5. However,the CR values of As,Cd and Pb in the three herbs were lower than 1×10~(-6). Above results indicated that those six harmful elements have certain health hazards to the exposed population,but there is no potential carcinogenic effect. It can be seen that,there were still presence of the pollution of harmful elements,and it is necessary to establish the reasonable limit standards and quality control methods of medicinal and edible plants in time.
Publication
Journal: Molecules
January/29/2019
Abstract
The root of Astragalus membranaceus var. mongholicus is one of the most popular herbal medicines worldwide. In order to increase the yield of underground roots of A.membranaceus var. mongholicus, its flowers (AMF) have often been removed in their flowering stage, which produces the flowers as waste being discarded. To explore its phytochemicals and potential value for utilization, the antioxidant activities of extracts from AMF were evaluated by a free radical scavenging assay and reducing power assay. The total phenols and flavonoids, as well as the individual compounds, in different extracts of AMF were also investigated. The results showed that the extract ME obtained from AMF through macroporous resins separation exhibited strong antioxidant activities, which were close to those of positive control BHT. ME was rich in phenolic acids and flavonoids, and the contents reached 108.42 mg gallic acid equivalents/g and 265.70 mg rutin equivalents/g, respectively. A total of 31 compounds, including four phenolic acids, nineteen flavonoids, three isoflavones, two pterocarpans, and three saponins, were identified using UPLC-QTOF-MS in ME. Quantitative analysis of sixteen components in the extracts of AMF showed that flavonoids were the predominant constituents, especially for the compounds of hyperoside, rutin, and isorhamnetin-3-O-β-d-glucoside.
Publication
Journal: Animal Science Journal
April/16/2019
Abstract
This study was designed to evaluate the potential application of the stems and leaves of Astragalus membranaceus (AMSL) in the poultry industry. Quails were divided into four groups and fed daily with an AMSL-free diet (control) or with 1%, 3%, or 5% (w/w) AMSL-incorporated diets for 35 days. The results showed that supplementing AMSL in the diet, especially at a concentration of 3%, increased daily gain and feed intake during the entire experiment (p < 0.05). The immune organ development of the thymus and bursa of Fabricius was promoted, and the immune system was enhanced by increasing the quantities of IgA and complements C3 and C4 (p < 0.05). The total antioxidant capacity and the activities of glutathione peroxidase and catalase were increased (p < 0.05). Moreover, the 3%-5% AMSL groups regulated the intestinal flora by promoting the proliferation of lactic acid bacteria and inhibiting the growth of coliform bacteria (p < 0.05). In conclusion, feeding incorporated diets with appropriate AMSL levels significantly increased growth performance, strengthened the immune system, improved antioxidative status, and regulated the intestinal microflora of quails, suggesting that AMSL has the potential to serve as a feed additive in the poultry industry.
Publication
Journal: Journal of Traditional Chinese Medicine
March/22/1987
Publication
Journal: Journal of Ethnopharmacology
November/27/2014
Abstract
BACKGROUND
Aqueous extract of Qu Feng Xuan Bi Formula (QFXBF, a Chinese herb formula) which composed of Radix Glycyrrhizae, Radix Glycyrrhizae Preparata, Paeonia sterniana Fletcher in Journ, Pheretima, Allium macrostemon Bunge, Astragalus membranaceus (Fisch) Bunge and Divaricate Saposhnikovia Root has been used in treatment of allergic rhinitis and asthma (ARA) as an approved hospital prescription for many years in Jiangsu Province Hospital of Traditional Chinese Medicine, China. The present study was designed to investigate the effect of the aqueous extract of QFXBF in the gene expression of Toll-like receptor 9 (TLR9) and the manners of immune modulation of T cell-associated interleukin (IL-4 and IL-13) in rat ARA models.
METHODS
Fifty SD male rats were divided into five groups: not treated group, OVA only group (treated only with OVA), dexamethasone (DXM) group, low dose QFXBF group and high dose QFXBF group randomly (n=10 per group). Rat allergic rhinitis and asthma model was developed by ovalbumin (OVA) sensitization and nose infusion. Pathological changes of nasal tissue and lungs were examined by H&E staining. Gene expressions of TLR9, Stat 3, Jak-1 and C-Jun in nasal tissue were assayed by real-time polymerase chain reaction (RT-PCR). The serum and broncho-alveolar lavage fluid (BALF) levels of T cell-associated interleukin (IL-4 and IL-13) were determined by enzyme-linked immunosorbent assay (ELISA).
RESULTS
The ARA model was successfully established. Marked EOS count was observed in BALF from ARA models. The aqueous extract of QFXBF could reduce EOS levels and increase TLR9 expression, but did not affect the gene expression of Stat-3 and Jak-1 and C-Jun. The reduction of IL-13 concentration in serum from high dose QFXBF group was observed in BALF, albeit not significantly. Despite the not treated group, serum levels of IL-4 had significantly increased in other four groups (P<0.001, n=4-6) but made higher in low dose QFXBF group and DXM group (P<0.05, n=4-6).
CONCLUSIONS
This study originally provides the evidence that the aqueous extract of Qu Feng Xuan Bi Formula alone is effective in the treatment of anaphylactic rhinitis-asthma symptoms. The extract of Qu Feng Xuan Bi Formula was effective to reduce the eosophil recruitment to the lung. In addition it increased the IL-4 concentration in the BALF and expression of TLR9 in the nasal tissue. No alteration was observed in the IL-13 concentration in the BALF and expression of STAT-3, JAK-1 and C-Jun in nasal tissue. The results thereby scientifically provided mechanism of these aqueous extract of QFXBF in improvement of ARA and supported its clinical use.
Publication
Journal: Biomolecules
May/14/2019
Abstract
Astragalus membranaceus is an important medicinal plant widely cultivated in East Asia. MicroRNAs (miRNAs) are endogenous regulatory molecules that play essential roles in plant growth, development, and the response to environmental stresses. Cold is one of the key environmental factors affecting the yield and quality of A. membranaceus, and miRNAs may mediate the gene regulation network under cold stress in A. membranaceus. To identify miRNAs and reveal their functions in cold stress response in A. membranaceus, small RNA sequencing was conducted followed by bioinformatics analysis, and quantitative real time PCR (qRT-PCR) analysis was performed to profile the expression of miRNAs under cold stress. A total of 168 conserved miRNAs belonging to 34 families and 14 putative non-conserved miRNAs were identified. Many miRNA targets were predicted and these targets were involved in diversified regulatory and metabolic pathways. By using qRT-PCR, 27 miRNAs were found to be responsive to cold stress, including 4 cold stress-induced and 17 cold-repressed conserved miRNAs, and 6 cold-induced non-conserved miRNAs. These cold-responsive miRNAs probably mediate the response to cold stress by regulating development, hormone signaling, defense, redox homeostasis, and secondary metabolism in A. membranaceus. These cold-corresponsive miRNAs may be used as the candidate genes in further molecular breeding for improving cold tolerance of A. membranaceus.
Publication
Journal: Phytotherapy Research
March/29/2015
Abstract
Jasin-hwan-gagambang (BHH10), a modified prescription of Jasin-hwan, contains Astragalus membranaceus, Cinnamomum cassia, and Phellodendron amurense, and it has been traditionally used to treat osteoporosis and other inflammatory diseases. In this study, we systematically investigated the protective effects of BHH10 in ovariectomy (OVX)-induced rats. Sprague-Dawley rats were randomly divided into sham and OVX subgroups. The rats in the OVX group were treated with vehicle, BHH10, alendronate (ALN), and 17β-estradiol (E2). BHH10 treatment significantly inhibited OVX-induced increases in body weight and uterus atrophy. In addition, it significantly increased the bone mineral density (BMD) and prevented a decrease in trabecular bone volume, connectivity density, trabecular number, thickness, and separation at the total femur and femur neck. The OVX rats showed significant decreases in the serum levels of calcium and phosphorous and significant increases in the serum levels of cholesterol, low-density lipoprotein cholesterol, alkaline phosphatase, osteocalcin, C-telopeptide type 1 collagen, and bone morphogenetic protein-2. These changes were significantly reduced to near sham levels by administration of BHH10 to OVX rats. BHH10-treated rats had a greater bone mass, a better structural architecture of the bone, and higher levels of biochemical markers of the bone than did the ALN-treated or E2-treated rats. These results suggest that BHH10 reverses osteoporosis in OVX rats by stimulating bone formation or regulating bone resorption and is not associated with toxicity.
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Publication
Journal: Journal of Ethnopharmacology
January/23/1991
Abstract
Oral administration of an ethanol extract of the root of Astragalus membranaceus alleviated liver injury induced by stilbenemidine. Pre-administration in mice reduced elevated SGPT levels and subacute toxicity of stilbenemidine, decreased pentobarbital-induced loss of righting reflex and protected hepatic cells from pathological changes.
Publication
Journal: Zhongguo zhong xi yi jie he za zhi Zhongguo Zhongxiyi jiehe zazhi = Chinese journal of integrated traditional and Western medicine / Zhongguo Zhong xi yi jie he xue hui, Zhongguo Zhong yi yan jiu yuan zhu ban
December/12/1993
Abstract
The extracts of Astragalus membranaceus have been further isolated by liquid chromatography. One of the fractions (Astragalan, M.W. 20,000-25,000) could enhance the secretion of tumor necrosis factor (TNF) from human peripheral blood mononuclear cells (PBMC) in vitro. After isolation of adherent and nonadherent mononuclear cells from PBMC, Astragalan increased the secretion of TNF-alpha and TNF-beta respectively. These results suggest further study of Astragalan would promote the application of Astragalan in cancer immunotherapy.
Publication
Journal: Zhong yao cai = Zhongyaocai = Journal of Chinese medicinal materials
May/3/2004
Abstract
By using culture of bone marrow cells in vitro and flowcytometry, effect of Astragalus membranaceus injection (AMI) on proliferative cycle phase of bone marrow cells in normal and anemic mice was studied. AMI 40 micrograms/ml (concentration in culture system) can promote normal murine bone marrow cells (BMC) entering proliferative cycle phase (S + M/G2 phase), so do AMI 40 micrograms/ml and AMI 400 micrograms/ml to anemic murine BMC. The results suggested AMI maybe enhance hematopoietic function in mice.
Authors
Publication
Journal: American Journal of Kidney Diseases
April/27/2010
Publication
Journal: Zhong xi yi jie he za zhi = Chinese journal of modern developments in traditional medicine
December/13/1984
Authors
Publication
Journal: European Journal of Pharmacology
March/7/2016
Abstract
Astragaloside IV (AS-IV) is one of the main active ingredients of Astragalus membranaceus. This study is aimed to investigate AS-IV׳s effects on Ca(2+) channel activity of single cardiomyocytes and single Ca(2+) channels. Whole-cell Ca(2+) currents in freshly dissociated cardiomyocytes were measured using the whole-cell patch-clamp technique. Single Ca(2+) channel currents were examined in cell-attached patches and inside-out patches. In the whole-cell recording, AS-IV reduced the amplitude of L-type Ca(2+) currents (ICaL) in a concentration-dependent manner. Although AS-IV did not alter the steady-state activation curves, the voltage dependence of the current inactivation curves was negatively shifted by AS-IV in a concentration dependent manner. Consistent with the results of the whole-cell recording, in the inside-out configuration the ensemble average of single Ba(2+) current via L-type Ca(2+) channel was dose-dependently reduced by AS-IV. The reduction of unitary Ba(2+) current at 0.1 or 1 µM AS-IV was accounted for a decrease in the channel activity (NPo). In addition to the decrease in NPo, there was a reduction of Po without a change in channel number or an apparent change in single channel current. Furthermore, we found that the open-closed kinetics of the channel were affected by AS-IV. AS-IV induced the shift of L-type Ca(2+) channels from either brief openings (mode 1) or long-lasting openings (mode 2) to no active opening (mode 0). Our results suggest that AS-IV blocks the currents through Ca(2+) channels in guinea-pig ventricular myocytes by affecting the open-closed kinetics of L-type Ca(2+) channels to inhibit the channel activities. This study could provide theoretical basis for the drug exploiting of the monomer of Astragalus membranaceus.
Publication
Journal: Journal of Traditional and Complementary Medicine
April/8/2014
Abstract
The antihepatoma activity and liver protective function of the fermentation products (5 L fermenator) of Ganoderma lucidum (GL; Ling Zhi) cultivated in a medium containing black soybean (BS; Hēi Dòu) and Astragalus membranaceus (AM; Shēng Huáng Qí) at different fermentation temperatures were investigated in this study. Hep 3B cells pretreated with lovastatin were used to study the antihepatoma activity, and possible active components were analyzed by reverse-phase high-performance liquid chromatography. Carbon tetrachloride (CCl4)-induced primary rat hepatocyte injury was further used to evaluate the liver protective activity of the fermentation products. While all the GL broth filtrates do not inhibit the growth of Hep 3B cells, the ethanolic extract from GL-2 mycelia (GL-2-mE), cultivated in the medium containing BS (50 g/L) and AM (20 g/L) at 24°C for 11 days showed the best antihepatoma activity (IC50 26.6 μg/mL) than the other ethanolic extracts from GL mycelia, GL fruiting body, BS, and AM did. The antihepatoma activities were correlated with some unknown active components in these samples. Furthermore, GL-2-mE (100 μg/mL) without harmful effect on the growth of normal primary rat hepatocytes significantly maintained cell viability, reduced lactate dehydrogenase leakage, lowered lipid peroxidation, and increased glutathione peroxidase and glutathione S-transferase activities in the CCl4-induced damaged primary rat hepatocytes.
Publication
Journal: Journal of integrative medicine
September/18/2016
Abstract
While much progress has been made in the field of hematopoietic stem cell transplantation (HSCT), headway in the promotion of recovery following this procedure has been limited. Data regarding the potential of Chinese herbal medicine (CHM) for patients with hematologic disorders who received HSCT are gradually increasing; however, these data are mostly in Chinese. Therefore, we set out to summarize the existing data. We searched PubMed, the Cochrane Library and the China National Knowledge Infrastructure and retrieved 9 clinical studies related to this group of patients, in whom CHM was used as an intervention. Of the 9 papers, 6 were published by the same group of researchers. The focus of the reviewed studies was heterogeneous, and the objectives varied widely. With the exception of one randomized control trial, all of the studies were retrospective and observational; the median number of patients was 11.5, with the largest study containing 104 patients. CHM treatment was largely divided into two stages: (1) pre-HSCT, which was initiated as soon as conditioning chemotherapy was administered and aimed to counterbalance the adverse effects of these potent agents; (2) post-HSCT, which began immediately after transplantation and was intended to promote engraftment, control graft-versus-host disease and prolong survival. In addition, the 9 Chinese materia medica most commonly prescribed (appearing in four studies) were: Shengdihuang (Rehmannia glutinosa), Baizhu (Atractylodes macrocephala), Renshen (Panax ginseng), Dangshen (Codonopsis pilosula), Maimendong (Ophiopogon japonicus), Danggui (Angelica sinensis), Taizishen (Pseudostellaria heterophylla), Huangqi (Astragalus membranaceus) and Ejiao (Equus asinus).
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Journal: Zhonghua nei ke za zhi [Chinese journal of internal medicine]
March/26/1995
Abstract
54 consecutive cases of small cell lung cancer (SCLC) were treated with longterm short-interval combined treatment modalities of chemotherapy, radiotherapy (55-65 GY), immunotherapy, traditional Chinese medicine (leaf of Asiatic Ginseng, root of Astragalus membranaceus Bge, etc) and other adjuvants. Chemotherapy consisted of vincristine, cyclophosphamide, methotrexate and carmustine. A complete response of 59.2%, partial response of 38.9% and an overall response of 98.1% were achieved. According to Kaplan-Meier, the survival rates of SCLC with limited disease for 1, 3, 5 and 10 years were 78.1%, 42.6%, 32.1% and 21.4% respectively; while those with extensive disease for 1, 3, and 5 years 90.5%, 13.4% and 13.4%. According to classification of international TNM staging (1988), the survival rates of stage II SCLC for 1, 3, 5 and 10 years were 92.9%, 61.9%, 53.1% and 31.8% respectively; of stage IIIa for 1, 3 and 5 years 80.0%, 30.0% and 20.0%, and of stage IIIb 83.3%, 20.8% and 15.6%. Our combined modalities raised the survival rates considerably; the improved effect was mainly due to the long-term (especially more than 2 years or 10 courses), short-interval, effective and timely combined treatment with chemotherapy, radiotherapy and adjuvants such as traditional Chinese medicine and immunotherapy. By using the above therapeutic strategy, 10 out of 12 SCLC patients including 4 with extensive disease, who were relatives of our hospital staffs, have gained more than 3-17 years of survival. Therefore small cell lung cancer even with extensive disease was a hopeful curable disease.
Publication
Journal: Analytical Sciences
May/23/2007
Abstract
Some raw materials that have different places of production for the plant sources of the drugs Astragalus membranaceus and ginseng have been studied, based on their near-infrared reflectance spectra. The experimentally recorded spectra represent heavily ill-posed and highly correlative data sets. Three related methods, i.e. the Fisher linear discriminant analysis (FLDA), the ridge-type linear discriminant analysis (RLDA) and a newly proposed penalized ridge-type linear discriminant analysis (PRLDA), have been investigated. FLDA over-fits for the training objects of the two data sets to a high extent and is unstable for the predictive objects of the two data sets. RLDA shows obvious improvement in terms of over-fitting and unstability, but the stability for the predictive objects of the two data sets is too sensitive to their ridge-type penalized weights, tending to produce erroneous discrimination results. The proposed PRLDA can circumvent the two aforementioned problems with a large domain of penalized weights for correct discriminant analysis of the two data sets studied. The combination of the PRLDA method and near infrared reflectance spectroscopy can be adapted for the discrimination of the production places of plant sources of these drugs.
Publication
Journal: Journal of Ethnopharmacology
December/21/2006
Abstract
Previous studies have demonstrated that traditional Chinese medicine Bao Gan Ning, which contains six different drugs: Trionyx sinensis Wiegmann shell, Prunus persica (L.) Batsch seed, Salvia miltiorrhiza Bge. root, Mallotus opelta (Lour.) Muell-Arg root, Astragalus membranaceus (Fisch.) Bge. var. mongho-licus (Bge.) Hsiao root and Scutellaria baicalensis Georgi root, was able to protect liver against fibrosis in CCL4 models. In an effort to elucidate molecular mechanisms by which Bao Gan Ning exerts its anti-fibrosis activity, effects of Bao Gan Ning on liver fibrosis and cAMP response element binding protein (CREB), an important transcription factor involved in liver fibrosis, were evaluated in animal and cell models in this work. Results showed that Bao Gan Ning (2.16 or 4.32 g/kg/day) significantly decreased alanine aminotransferase (ALT) and hyaluronidase levels and reversed liver fibrosis in rat liver fibrosis models. The proliferation of HSC-T6, a hepatic stellate cell line, was also significantly inhibited by incubation with serums that were prepared from rats fed with Bao Gan Ning. Most interestingly, results from Western blot, immunohistochemistry and electrophoretic mobility shift assay (EMSA) showed that Bao Gan Ning up-regulated CREB phosphorylation both in rat liver fibrosis models and in HSC-T6 cells, but did not affect protein level of CREB and the DNA binding activity of CREB. These results suggested that up-regulation of CREB phosphorylation may be involved in anti-fibrosis activity of Chinese medicine Bao Gan Ning.
Publication
Journal: Zhongguo Zhongyao Zazhi
September/17/2017
Abstract
Basically, Dao-di hers are produced in specific area which has a long history, good quality, good medicine, curative effect. However genuine medicinal material area in history is not static, this makes the establishment of genuine medicinal material origin and the in-depth research be very difficult. This paper has profoundly analyzed the origin of different historical periods taking Astragalus membranaceus and Salvia miltiorrhiza as examples, and then summarized the reasons of herbal origin changes from the humanities, social and natural three aspects. This paper provides a basis for establishment and the further research of high-quality genuine producing area.
Publication
Journal: Oxidative Medicine and Cellular Longevity
July/29/2020
Abstract
Astragalus membranaceus (AM), used in traditional Chinese medicine, has been shown to enhance immune functions, and recently, its anti-inflammatory effects were identified. However, the mechanisms of action remain unclear. Most studies have shown that autophagy might be involved in the immune response of the body, including inflammation. Here, we developed an inflammatory model by stimulating macrophages with lipopolysaccharides (LPS) to explore the anti-inflammatory effect and mechanisms of AM injection from the perspective of the regulation of autophagy. Immunoblot, immunofluorescence, and ELISA were used to determine the effects of AM injection on the production of interleukin-6 (IL-6) and alterations of autophagy markers. It was found that AM injection reduced the expression of IL-6 in LPS-stimulated macrophages and reversed the LPS-induced inhibition of cellular autophagy. After treatment with inhibitors of signaling pathways, it was shown that LPS downregulated autophagy and upregulated the production of IL-6 in macrophages via the protein kinase B (Akt)/mammalian target of rapamycin (mTOR) pathway. AM injection reversed the effects of LPS by activating the AMP-activated protein kinase (AMPK) instead of inhibiting Akt. These results were further confirmed by testing activators and siRNA silencing of AMPK. Hence, these 2 distinct signaling molecules appear to exert opposite effects on mTOR, which integrates information from multiple upstream signaling pathways, negatively regulating autophagy. In addition, we demonstrated that autophagy might play a key role in regulating the production of IL-6 by testing activators and inhibitors of autophagy and siRNA silencing of ATG5. These findings showed that AM injection might enhance autophagy by activating AMPK and might further play a repressive effect on the LPS-stimulated expression of IL-6. This study explored the relationship between autophagy, signaling pathways, and the production of inflammatory factors in a model of endotoxin infection and treatment with AM injection.
Publication
Journal: Life Sciences
March/27/2021
Abstract
Astragaloside IV (AS-IV), the major active constituent purified from Astragalus membranaceus, was previously reported to have protective effects against cardiac dysfunction. However, the underlying mechanism remains unknown. In the present study, we investigated the protective effect of AS-IV on lipopolysaccharide (LPS)-induced cardiac dysfunction and explored the potential mechanism by focusing on miRNA-1 (miR-1) at the animal and cellular levels. A series of methods were used, including echocardiography, flow cytometry, ELISA, immunofluorescence, transmission electron microscopy, RT-PCR, and western blotting. The results showed that both AS-IV and the miR-1 inhibitor improved cardiac dysfunction, reduced heart injury, inhibited apoptosis and autophagy, and regulated the expression of calcium- and mitochondrial energy metabolism-related proteins in the heart tissue of rats treated with LPS. Importantly, AS-IV downregulated the expression of miR-1 mRNA in heart tissue. All effects of AS-IV were at least partly abolished by miR-1 mimics. In the in vitro study, both AS-IV and the miR-1 inhibitor inhibited apoptosis and autophagy and regulated the expression of calcium- and mitochondrial energy metabolism-related proteins in heart cells treated with LPS. Similarly, AS-IV downregulated the expression of miR-1 mRNA in heart cells. All effects of AS-IV on cells were at least partly abolished by miR-1 mimics. Furthermore, miR-1 mimics exhibited effects similar to LPS both in animal and cellular studies. Taken together, these results suggest that AS-IV protects against LPS-induced cardiac dysfunction by inhibiting calcium-mediated apoptosis and autophagy by targeting miR-1, highlighting a new mechanism for the therapeutic effect of AS-IV on cardiac dysfunction.
Keywords: Apoptosis; Astragaloside IV; Autophagy; Cardiac dysfunction; Lipopolysaccharide; miRNA-1.
Publication
Journal: BMC Complementary and Alternative Medicine
February/10/2016
Abstract
BACKGROUND
Astragalus membranaceus (AM) is a Chinese traditional herb which has been reported to have broad positive effects on many diseases, including hepatitis, heart disease, diabetes and skin disease. AM can promote cell proliferation, increase the activities of superoxide dismutase (SOD) and glutathione peroxidase (GPx), and inhibit apoptosis by regulating the transcription of proto-oncogenes controlling cell death. While AM is included in some commercially available "testosterone boosting supplements", studies directly testing ability of AM to modulate testosterone production are lacking. In the present study, we examined the effects of AM on Leydig cell function in vitro.
METHODS
Rat Leydig cells were purified and treated with AM at different concentrations (0 μg/mL, 10 μg/mL, 20 μg/mL, 50 μg/mL, 100 μg/mL and 150 μg/mL) and cell counting-8 (CCK-8) assay, Enzyme-linked immunosorbent assay, quantitative real time PCR and analysis of activities of SOD and GPx were done respectively.
RESULTS
Treatment with 100 μg/mL (P<0.05) and 150 μg/mL AM (P<0.01) significantly increased Leydig cell numbers. Treatment with AM (20 μg/mL, 50 μg/mL and 100 μg/mL) significantly increased testosterone production (P<0.01). In addition, increased Leydig cell SOD and GPx activities were observed in response to 20 μg/mL and 50 μg/mL AM treatment (P<0.01). Furthermore, expression of Bax mRNA was significantly decreased (P<0.01), and the ratio of Bcl-2/Bax mRNA was significantly increased in response to 20 μg/mL AM in the culture medium (P<0.05).
CONCLUSIONS
Results supported a beneficial effect of AM on multiple aspects of rat Leydig cell function in vitro including testosterone production.
Publication
Journal: Zhongguo zhong xi yi jie he za zhi Zhongguo Zhongxiyi jiehe zazhi = Chinese journal of integrated traditional and Western medicine / Zhongguo Zhong xi yi jie he xue hui, Zhongguo Zhong yi yan jiu yuan zhu ban
September/25/1995
Abstract
Dynamic observations for 4 weeks were made on left ventricular function and oxygen free radical (OFR) in 43 patients first suffering from acute myocardial infarction and hospitalized in Coronary Care Unit with an attack less than 36 hours. The results showed that the Astragalus membranaceus (AM) could strengthen the left ventricular function and had an effect of anti-OFR. After administration of AM, the ratio of pre-ejection period/left ventricular ejection time (PEP/LVET) was decreased, the superoxide dismutase (SOD) activity of red blood cell was increased, and the lipid peroxidation (LPO) content of plasma was reduced. There was a significant difference between the AM group and the control group in the parameters above-mentioned. The study demonstrated that the PEP/LVET ratio was closely correlated with the SOD and LPO. It suggested that the anti-OFR effect of AM was one of the mechanisms of its cardiotonic action.
Publication
Journal: Journal of Medicinal Food
April/23/2017
Abstract
Despite the promising advances in therapeutic discovery, there still is a major challenge in the development of a safe, effective, and economical intervention for managing alcohol-related liver disorders. In this study, we describe the potential use of "MAP," a standardized composition comprising three extracts from Myristica fragrans, Astragalus membranaceus, and Poria cocos, in ameliorating alcohol-induced acute liver toxicity. Ethanol-induced acute hepatotoxicity as an animal model of binge drinking was utilized. Mice received oral doses of MAP at 300 mg/kg for four consecutive days. Mice were orally gavaged with 50% ethanol in 12 mL/kg dosing volume following the third dose of MAP every 12 h thereafter for a total of three doses. Hepatic functional tests from serum collected at T12, and hepatic glutathione (GSH), superoxide dismutases (SODs), and triglyceride from liver homogenates were evaluated. Histopathology analysis and alcoholic steatohepatitis (ASH) scoring were also determined. Excessive increases of serum alanine aminotransferase and aspartate aminotransferase were significantly inhibited at 46.3% and 43.6%, respectively, when mice were treated with MAP. MAP replenished the depleted SOD by more than 60%, while causing significant stimulation of GSH productions. MAP showed statistically significant reduction in ballooning degeneration, vascular steatosis, cytoplasmic or nuclear condensation, and shrinkage, as well as inflammations when compared to vehicle-treated alcohol-induced liver toxicity model. Mice treated with MAP showed statistically significant reduction in ASH scoring when compared to vehicle control. Therefore, the composition MAP could be potentially utilized as an effective hepatic-detoxifying agent for the protection of liver damage caused by alcohol consumptions.
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