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1.
Chin J Integr Med ; 29(12): 1059-1065, 2023 Dec.
Article in English | MEDLINE | ID: mdl-37656413

ABSTRACT

BACKGROUND: Ventricular remodeling after acute anterior wall ST-segment elevation myocardial infarction (AAMI) is an important factor in occurrence of heart failure which additionally results in poor prognosis. Therefore, the treatment of ventricular remodeling needs to be further optimized. Compound Danshen Dripping Pills (CDDP), a traditional Chinese medicine, exerts a protective effect on microcirculatory disturbance caused by ischemia-reperfusion injury and attenuates ventricular remodeling after myocardial infarction. OBJECTIVE: This study is designed to evaluate the efficacy and safety of CDDP in improving ventricular remodeling and cardiac function after AAMI on a larger scale. METHODS: This study is a multi-center, randomized, double-blind, placebo-controlled, parallel-group clinical trial. The total of 268 patients with AAMI after primary percutaneous coronary intervention (pPCI) will be randomly assigned 1:1 to the CDDP group (n=134) and control group (n=134) with a follow-up of 48 weeks. Both groups will be treated with standard therapy of ST-segment elevation myocardial infarction (STEMI), with the CDDP group administrating 20 tablets of CDDP before pPCI and 10 tablets 3 times daily after pPCI, and the control group treated with a placebo simultaneously. The primary endpoint is 48-week echocardiographic outcomes including left ventricular ejection fraction (LVEF), left ventricular end-diastolic volume index (LVEDVI), and left ventricular end-systolic volume index (LVESVI). The secondary endpoint includes the change in N terminal pro-B-type natriuretic peptide (NT-proBNP) level, arrhythmias, and cardiovascular events (death, cardiac arrest, or cardiopulmonary resuscitation, rehospitalization due to heart failure or angina pectoris, deterioration of cardiac function, and stroke). Investigators and patients are both blinded to the allocated treatment. DISCUSSION: This prospective study will investigate the efficacy and safety of CDDP in improving ventricular remodeling and cardiac function in patients undergoing pPCI for a first AAMI. Patients in the CDDP group will be compared with those in the control group. If certified to be effective, CDDP treatment in AAMI will probably be advised on a larger scale. (Trial registration No. NCT05000411).


Subject(s)
Drugs, Chinese Herbal , Heart Failure , Myocardial Infarction , Percutaneous Coronary Intervention , ST Elevation Myocardial Infarction , Humans , ST Elevation Myocardial Infarction/etiology , ST Elevation Myocardial Infarction/therapy , Stroke Volume , Ventricular Remodeling , Prospective Studies , Microcirculation , Ventricular Function, Left , Myocardial Infarction/diagnostic imaging , Myocardial Infarction/drug therapy , Myocardial Infarction/etiology , Treatment Outcome , Percutaneous Coronary Intervention/adverse effects , Heart Failure/diagnostic imaging , Heart Failure/drug therapy , Drugs, Chinese Herbal/pharmacology , Drugs, Chinese Herbal/therapeutic use , Randomized Controlled Trials as Topic , Multicenter Studies as Topic
2.
Ann Palliat Med ; 10(4): 4846-4857, 2021 Apr.
Article in English | MEDLINE | ID: mdl-33832318

ABSTRACT

This paper aims to analyze how intestinal flora regulates liver fibrosis pathogenesis and to evaluate the regulatory effect of traditional Chinese medicine (TCM) on the intestinal flora, providing new insights into liver fibrosis treatment. Destruction of the intestinal microbiome can lead to liver fibrosis development, accelerating the intestinal microbiome's disruption. TCM can effectively regulate the intestinal flora, helping prevent and treat liver fibrosis. This review discusses the mechanisms behind intestinal flora changes in liver fibrosis and how TCM can regulate these changes. We searched PubMed, the Wanfang database, and CNKI for "liver fibrosis", "intestinal microflora", and "intestinal microbiota" and reviewed the retrieved literature. We detail the prevention and treatment options for liver fibrosis though the use of TCM in regulating intestinal flora. We also highlight the influence of the intestinal flora on liver fibrosis and present the research regarding the prevention and treatment of liver fibrosis using TCM. We also describe the effects of TCM on the intestinal flora. TCM can effectively regulate the intestinal flora to prevent and treat liver fibrosis through the liver-intestine axis.


Subject(s)
Drugs, Chinese Herbal , Gastrointestinal Microbiome , Drugs, Chinese Herbal/therapeutic use , Humans , Liver Cirrhosis , Medicine, Chinese Traditional
3.
Front Microbiol ; 11: 643, 2020.
Article in English | MEDLINE | ID: mdl-32373091

ABSTRACT

Shiraia bambusicola has long been used as a traditional Chinese medicine and its major medicinal active metabolite is hypocrellin, which exhibits outstanding antiviral and antitumor properties. Here we report the 32 Mb draft genome sequence of S. bambusicola S4201, encoding 11,332 predicted genes. The genome of S. bambusicola is enriched in carbohydrate-active enzymes (CAZy) and pathogenesis-related genes. The phylogenetic tree of S. bambusicola S4201 and nine other sequenced species was constructed and its taxonomic status was supported (Pleosporales, Dothideomycetes). The genome contains a rich set of secondary metabolite biosynthetic gene clusters, suggesting that strain S4201 has a remarkable capacity to produce secondary metabolites. Overexpression of the zinc finger transcription factor zftf, which is involved in hypocrellin A (HA) biosynthesis, increases HA production when compared with wild type. In addition, a new putative HA biosynthetic pathway is proposed. These results provide a framework to study the mechanisms of infection in bamboo and to understand the phylogenetic relationships of S. bambusicola S4201. At the same time, knowledge of the genome sequence may potentially solve the puzzle of HA biosynthesis and lead to the discovery of novel genes and secondary metabolites of importance in medicine and agriculture.

4.
Mater Sci Eng C Mater Biol Appl ; 106: 110230, 2020 Jan.
Article in English | MEDLINE | ID: mdl-31753349

ABSTRACT

There is an urgent need for new antibacterial strategies to overcome the emergence of antibiotic resistance. Antibacterial photodynamic therapy (APDT) may be an effective method to deliver photosensitizers for the treatment of methicillin-resistant Staphylococcus aureus (MRSA) infections. Here, we report that the photosensitizer hypocrellin A (HA) loaded into lipase-sensitive methoxy poly (ethylene glycol)-block-poly(ε-caprolactone) (mPEG-PCL) micelles showed high anti-MRSA activity in vitro and in vivo by PDT. Once the micelles come into contact with bacteria that secrete lipase, the PCL is degraded to release HA. Our results showed that the minimum inhibitory concentration (MIC) and minimum bactericidal concentration (MBC) of mPEG-PCL/HA micelles after light irradiation were 0.69 and 1.38 mg/L (HA concentration), respectively. In the dark, the MIC and MBC of the micelles were 250 and 500 mg/L (HA concentration), respectively. The fluorescent stain results further demonstrated the photodynamic antibacterial activity of mPEG-PCL/HA micelles. The survival rate of mice subjected to experimental acute peritonitis increased to 86% after treated with the micelles. The polymeric micelles showed low hemolytic activity and biocompatibility, simultaneously preventing aggregation in vivo and enhancing the water solubility of HA. Thus, the photosensitizer HA loaded micelles could be used as APDT for infections caused by bacteria without antibiotic resistance.


Subject(s)
Lipase/chemistry , Methicillin-Resistant Staphylococcus aureus/pathogenicity , Perylene/analogs & derivatives , Polymers/chemistry , Quinones/chemistry , Quinones/therapeutic use , Animals , Anti-Bacterial Agents/chemistry , Anti-Bacterial Agents/therapeutic use , Drug Carriers/chemistry , Female , Methicillin-Resistant Staphylococcus aureus/drug effects , Mice , Micelles , Microbial Sensitivity Tests , Perylene/chemistry , Perylene/therapeutic use , Phenol , Photochemotherapy
5.
Article in Chinese | WPRIM | ID: wpr-743465

ABSTRACT

Objective To investigate the clinical efficacy of combined acupuncture and medicine for external hemorrhoids. Method Included 68 patients with external hemorrhoids were allocated, in order of visits, to acupuncture, external application and acupuncture-medicine groups. The acupuncture group received acupuncture at points Chengshan (BL57) and Dachangshu (BL25); the external application group, external application of Divine Pain-Relief Decoction; the acupuncture-medicine group, comprehensive intervention. Result The pain was markedly relieved (P<0.01) but the severity of swelling and the size of hemorrhoids were less reduced (P<0.01, P<0.05) in the acupuncture group compared with the external application group. The therapeutic effect was better in acupuncturemedicine group than in the acupuncture and external application groups with more reduced size of hemorrhoids (P<0.01, P<0.05), lower VAS score (P<0.05, P<0.01) and lower swelling severity score (P<0.01, P<0.05).Conclusion Acupuncture is more effective in relieving the pain, while external application of herbal medicine is more effective in reducing the severity of swelling and the size of hemorrhoids. The combined use of acupuncture and medicine can synergically enhance the clinical therapeutic effect.

6.
Ying Yong Sheng Tai Xue Bao ; 26(4): 1064-70, 2015 Apr.
Article in Chinese | MEDLINE | ID: mdl-26259447

ABSTRACT

To understand the physiological adaptive mechanism of Phyllostachys violascens to intensive mulching management, the effect of mulching management (CK, 1, 3 and 6 years) on the concentrations and ratios of non-structural carbohydrates (NSC), nitrogen (N) and phosphorus (P) in bamboo foliage, and their stoichiometry was investigated. The results showed the concentrations of NSC and soluble sugar increased, while the starch content and N/P decreased markedly in bamboo stand with 1-year mulching, compared to CK stand, which suggested the N limitation to bamboo growth was strengthened. Foliar soluble sugar content decreased significantly, while the starch content increased dramatically, and the NSC content by per unit mass of N and P reached the maximum in the bamboo stand with 3-year mulching, compared to all other treatments. Foliar NSC and soluble sugar contents decreased significantly, while foliar starch content and N/P increased dramatically in the stand with 6-year mulching, which suggested the P limitation to bamboo growth was strengthened. Foliar NSC content was positively correlated with N and P concentrations in a short-term mulching management stand (≤ 3 years), while showed negative relationship with N/P. The foliar starch content in the stand with 6-year mulching was negatively correlated with N and P contents, while was positively correlated with N/P. The results indicated that short-term mulching management accelerated the accumulation of soluble sugar and decomposition of starch in foliage, thus the growth and activity of Ph. violascens was enhanced greatly. Long-term mulching management promoted the starch accumulation, which led to the transition from N limitation to P limitation for bamboo growth. In summary, long-term (6 years) mulching management caused the decrease of growth and activity of Ph. violascens dramatically, thus enhancing the bamboo stand degradation. The utilization efficiency of N and P reached the highest in the stand with 3-year mulching, which implied 3-year was the best suitable period for intensive mulching management for maintaining bamboo stand quality.


Subject(s)
Agriculture/methods , Carbohydrates/chemistry , Nitrogen/chemistry , Phosphorus/chemistry , Poaceae/chemistry , Starch/chemistry
7.
Zhongguo Zhong Yao Za Zhi ; 40(4): 614-8, 2015 Feb.
Article in Chinese | MEDLINE | ID: mdl-26137678

ABSTRACT

In this paper, actinomycetes were isolated from vermicompost by tablet coating method. Antimicrobial activities of actinomycetes were measured by the agar block method. Strains with high activity were identified based on morphology and biochemical characteristics, as well as 16S rDNA gene sequence analysis. The results showed that 26 strains of actinomycetes were isolated, 16 of them had antimicrobial activities to the test strains which accounts for 61.54% of all strains. Among the 16 strains, the strain QYF12 and QYF22 had higher antimicrobial activity to Micrococcus luteus, with a formed inhibition zone of 27 mm and 31 mm, respectively. While the strain QYF26 had higher antimicrobial activity to Bacillus subtilis, and the inhibition zone diameter was 21 mm. Based on the identification of strains with high activity, the strain QYF12 was identified as Streptomyces chartreusis, the strain QYF22 was S. ossamyceticus and the strain QYF26 was S. gancidicus. This study provided a theoretical basis for further separate antibacterial product used for biological control.


Subject(s)
Actinobacteria/chemistry , Actinobacteria/isolation & purification , Anti-Bacterial Agents/isolation & purification , Feces/microbiology , Actinobacteria/classification , Actinobacteria/genetics , Animals , Anti-Bacterial Agents/metabolism , Bacteria/drug effects , Molecular Sequence Data , Oligochaeta , Phylogeny , Quality Control
8.
Asian Pac J Allergy Immunol ; 32(2): 140-4, 2014 Jun.
Article in English | MEDLINE | ID: mdl-25003727

ABSTRACT

OBJECTIVE: To explore the effects of SANPAOCAO (SPC), a compound traditional Chinese folk medicine, on chronic dermatitis/eczema in mice induced by 2, 4-dinitrochlorobenzene (DNCB). METHODS: Thirty-three Balb/c mice were randomly divided into a negative control group, a positive control group, a prednisolone treatment group, an SPC ethanol extract treatment group, a Cardiospermum halicacabum ethanol extract treatment group, a Physalis minima ethanol extract treatment group, and a Jussiaea repens ethanol extract treatment group. Mice in the six treatment groups had twenty-five microliters of 0.1% DNCB in acetone/olive oil (3: 1) applied to each side of their right ears and dorsal skin three times a week, over a 5 week period. They were treated with prednisolone or the various kinds of ethanol extract after each challenge. The weight difference between the two ears, pathological changes in the right ears, dermal inflammatory cell numbers, and total serum Ig E levels were used to assess the effects of the drugs. RESULTS: after the 5 weeks of challenges, the weight differences of the ears in the SPC group and the prednisolone group were significantly less than those in the other groups. There was evidence of significant suppression of the development of dermatitis, as determined by a histological examination and the serum Ig E levels. CONCLUSION: SPC has beneficial effects when used in the treatment of chronic dermatitis-eczema in mice.


Subject(s)
Dermatitis, Atopic/drug therapy , Dermis/metabolism , Drugs, Chinese Herbal/pharmacology , Medicine, Chinese Traditional , Animals , Dermatitis, Atopic/blood , Dermatitis, Atopic/immunology , Dermatitis, Atopic/pathology , Dermis/immunology , Dermis/pathology , Drugs, Chinese Herbal/chemistry , Immunoglobulin E/blood , Immunoglobulin E/immunology , Male , Mice , Mice, Inbred BALB C
9.
Article in Chinese | WPRIM | ID: wpr-313023

ABSTRACT

<p><b>OBJECTIVE</b>To study the effect of extract of Radix Tetrastigma hemsleyani on the proliferation and apoptosis of human lung carcinoma H1299 cells, and to explore its mechanisms. METHODS H1299 cells were treated with the extract of Radix Tetrastigma hemsleyani in different concentrations at different time points. Its inhibition on H1299 cell proliferation was detected by Cell Counting Kit-8 (CCK-8) assay. The morphology of the H1299 cell was observed by inverted microscope. Changes of apoptosis were observed by Hoechst33258 methods. The apoptosis rate was detected by flow cytometry. Expression changes of apoptosis-related proteins pro-caspase-3, pro-caspase-9, cle-caspase-3, cle-caspase-9, and poly-ADP-ribose polymerase (PARP) were detected by Western blot.</p><p><b>RESULTS</b>Compared with the control group, the inhibition rate of H1299 cells increased after acted by 0.5, 1, 5, and 10 mg/mL extract of Radix Tetrastigma hemsleyani (P < 0.05, P < 0.01). The longer the acting time, the higher the inhibition rate (P < 0.01). Under inverted microscope, typical morphological changes could be seen and the number of H1299 cells was reduced. Under fluorescence microscope, dark stained nucleus and formed apoptotic body could be observed. Results of flow cytometry showed that the apoptosis rate was obviously dose-effect correlated with the concentration of extract of Radix Tetrastigma hemsleyani. Results of Western blot indicated that compared with the control. group, the protein expression of pro-caspase-3, pro-caspase-9, and PARP were down-regulated and that of cle-caspase-3, cle-caspase-9, and cle-PARP were up-regulated by 5 and 10 mg/mL extract of Radix Tetrastigma hemsleyani (P < 0.05).</p><p><b>CONCLUSIONS</b>Extract of Radix Tetrastigma hemsleyani had obvious effect in inhibiting the proliferation and inducing apoptosis of human lung carcinoma H1299 cells, which might be achieved by activating the expression of caspase protein.</p>


Subject(s)
Humans , Apoptosis , Caspase 3 , Metabolism , Caspase 9 , Metabolism , Cell Line, Tumor , Cell Proliferation , Drugs, Chinese Herbal , Pharmacology , Flow Cytometry , Poly(ADP-ribose) Polymerases , Metabolism
10.
Ying Yong Sheng Tai Xue Bao ; 24(4): 893-9, 2013 Apr.
Article in Chinese | MEDLINE | ID: mdl-23898642

ABSTRACT

Taking pure Oligostachyum lubricum forest as test object, this paper studied the matured and withered leaves carbon (C), nitrogen (N), and phosphorus (P) stoichiometry and N and P resorption patterns of 1-3 years old stands at the densities of 24600-29800 stem hm-2 (D, ), 37500-42600 stem hm-2 (D2 ), 46500 - 52800 stem hm-2 (D3), and 76500 - 85500 stem hm-2 (D4). With increasing stand density, the matured leaves C, N, and P contents and withered leaves C and P contents had an overall decrease, the withered leaves N content decreased after an initial increase, and the matured leaves C content at density )4 decreased dramatically. The leaf C/N and C/P ratio increased with increasing stand density, whereas the leaf N/P ratio increased first but decreased then. At stand densities D3 and D4, the leaf N and P utilization efficiencies were significantly higher than those at D, and D2. With increasing stand density, the leaf N resorption capacity increased after an initial decrease, while the leaf P resorption capacity increased steadily. At stand densities D,-D3, the matured leaves N/P ratio was 16.24-19.37, suggesting that the P limitation occurred, leaf establishment increased, and population increase and expansion enhanced. At density D4, the matured leaves N/P ratio was 13.42-15.74, implying that the N limitation strengthened, leaf withering and defoliation increased, and population increase inhibited. All the results indicated that O. lubricum could regulate its leaf C, N and P contents and stoichiometry and enhance the leaf N and P utilization efficiency and resorption capacity to adapt to the severe competition of environment resources at high stand density. In our experimental condition, 46500-52800 stem hm-2 could be the appropriate stand density for O. lubricum management.


Subject(s)
Carbon/chemistry , Forestry/methods , Nitrogen/chemistry , Sasa/chemistry , Sasa/metabolism , Ecosystem , Phosphorus/chemistry , Plant Leaves/chemistry , Sasa/growth & development
11.
Zhongguo Zhong Xi Yi Jie He Za Zhi ; 33(2): 208-13, 2013 Feb.
Article in Chinese | MEDLINE | ID: mdl-23646476

ABSTRACT

OBJECTIVE: To compare the effects of Bushen Jiedu Recipe (BJR) and Jianpi Jiedu Recipe (JJR) containing plasma on dendritic cells (DCs) of chronic hepatitis B virus (HBV) infection patients under different immune states. METHODS: Recruited were 36 chronic HBV infection outpatients from First Affiliated Hospital of Hunan University of Traditional Chinese Medicine from April 2010 to January 2011. They were assigned to the immune tolerance group (18 cases) and the immune clearance group (18 cases).Another 10 healthy subjects were recruited as the healthy control group. Their anticoagulated peripheral venous blood was respectively collected. The peripheral blood mononuclear cells (PBMCs) were isolated and further extracted for incubating DCs. The DCs were intervened by BJR and JJR containing plasma. The morphology of DCs was identified. The expressions of CD1alpha, CD80, CD86, and HLA-DR were detected. The level of interferon-alpha (IFN-alpha) in the supernatant was observed by ELISA. RESULTS: The CD80 expression level was lower in the immune clear group than in the healthy control group before intervention (P < 0.05). The expression levels of CD80, CD86, and HLA-DR were lower in the immune tolerance group than in the healthy control group before intervention (P < 0.05).The IFN-alpha expression level was lower in the immune tolerance group and the immune clearance group than in the healthy control group before intervention (P < 0.05). The expression levels of CD80, HLA-DR, and IFN-alpha were lower in the immune tolerance group than in the immune clearance group before intervention (P < 0.05). Compared with the same group before intervention, the CD80 expression significantly increased in each treatment group (P < 0.05). After intervention the expression levels of CD80 and HLA-DR were higher in the immune tolerance group than in the immune clearance group in the same time phase, and the CD86 expression level was higher in the BJR group than in the immune clearance group in the same time phase, showing statistical difference (P < 0.05). CONCLUSIONS: The middle dose BJR and the small dose JJR both could promote the recovery of DCs in chronic HBV infection patients. Besides, BJR showed more prominent effects on the function of DCs in chronic HBV infection patients in the immune tolerance stage.


Subject(s)
Dendritic Cells/drug effects , Drugs, Chinese Herbal/pharmacology , Hepatitis B, Chronic/blood , Hepatitis B, Chronic/immunology , Adult , B7-1 Antigen/metabolism , B7-2 Antigen/metabolism , Case-Control Studies , Dendritic Cells/immunology , Drugs, Chinese Herbal/therapeutic use , Female , HLA-DR Antigens/metabolism , Hepatitis B, Chronic/drug therapy , Humans , Immune Tolerance/drug effects , Interferon-alpha/metabolism , Male , Phytotherapy , Plasma , Young Adult
12.
Article in Chinese | WPRIM | ID: wpr-355562

ABSTRACT

<p><b>OBJECTIVE</b>To compare the effects of Bushen Jiedu Recipe (BJR) and Jianpi Jiedu Recipe (JJR) containing plasma on dendritic cells (DCs) of chronic hepatitis B virus (HBV) infection patients under different immune states.</p><p><b>METHODS</b>Recruited were 36 chronic HBV infection outpatients from First Affiliated Hospital of Hunan University of Traditional Chinese Medicine from April 2010 to January 2011. They were assigned to the immune tolerance group (18 cases) and the immune clearance group (18 cases).Another 10 healthy subjects were recruited as the healthy control group. Their anticoagulated peripheral venous blood was respectively collected. The peripheral blood mononuclear cells (PBMCs) were isolated and further extracted for incubating DCs. The DCs were intervened by BJR and JJR containing plasma. The morphology of DCs was identified. The expressions of CD1alpha, CD80, CD86, and HLA-DR were detected. The level of interferon-alpha (IFN-alpha) in the supernatant was observed by ELISA.</p><p><b>RESULTS</b>The CD80 expression level was lower in the immune clear group than in the healthy control group before intervention (P < 0.05). The expression levels of CD80, CD86, and HLA-DR were lower in the immune tolerance group than in the healthy control group before intervention (P < 0.05).The IFN-alpha expression level was lower in the immune tolerance group and the immune clearance group than in the healthy control group before intervention (P < 0.05). The expression levels of CD80, HLA-DR, and IFN-alpha were lower in the immune tolerance group than in the immune clearance group before intervention (P < 0.05). Compared with the same group before intervention, the CD80 expression significantly increased in each treatment group (P < 0.05). After intervention the expression levels of CD80 and HLA-DR were higher in the immune tolerance group than in the immune clearance group in the same time phase, and the CD86 expression level was higher in the BJR group than in the immune clearance group in the same time phase, showing statistical difference (P < 0.05).</p><p><b>CONCLUSIONS</b>The middle dose BJR and the small dose JJR both could promote the recovery of DCs in chronic HBV infection patients. Besides, BJR showed more prominent effects on the function of DCs in chronic HBV infection patients in the immune tolerance stage.</p>


Subject(s)
Adult , Female , Humans , Male , Young Adult , B7-1 Antigen , Metabolism , B7-2 Antigen , Metabolism , Case-Control Studies , Dendritic Cells , Allergy and Immunology , Drugs, Chinese Herbal , Pharmacology , Therapeutic Uses , HLA-DR Antigens , Metabolism , Hepatitis B, Chronic , Blood , Drug Therapy , Allergy and Immunology , Immune Tolerance , Interferon-alpha , Metabolism , Phytotherapy , Plasma
13.
Nat Prod Commun ; 6(8): 1131-2, 2011 Aug.
Article in English | MEDLINE | ID: mdl-21922917

ABSTRACT

Two compounds, apigenin-8-C-beta-D-glucopyranoside and 2-(hydroxymethylthio)ethanol, were extracted from the fermentation products of a strain of endophytic fungus, Colletotrichum sp. NTB-2, isolated from the leafstalk of Ginkgo biloba. The structures of the two compounds were determined on the basis of extensive spectroscopic analysis, including 1D and 2D NMR spectral data. The compounds wereobtained from microorganisms for the first time.


Subject(s)
Alcohols/chemistry , Apigenin/chemistry , Colletotrichum/chemistry , Ginkgo biloba/microbiology , Glycosides/chemistry , Pyrans/chemistry , Sulfhydryl Compounds/chemistry , Molecular Structure
14.
Xi Bao Yu Fen Zi Mian Yi Xue Za Zhi ; 24(9): 861-3, 2008 Sep.
Article in Chinese | MEDLINE | ID: mdl-18782516

ABSTRACT

AIM: To study the anti-inflammatory effect of petroleum ether extract from Melilotus suaveolens Ledeb. METHODS: Inflammatory cell model was constructed by LPS acting on the RAW264.7 cell line. The expression and distribution of NF-kappaB were detected using immunocytochemical method. The expression of mRNA and protein of Heme oxygenase 1(HO-1) were detected by real-time PCR and Western blot. RESULTS: The immunocytochemical analysis showed that the cytoplasm stained to brown presented NF-kappaB inactivation after the intervention of petroleum ether extract while the cell nucleus stained to brown presented NF-kappaB activation after the only intervention of LPS. The expression of HO-1 mRNA was significantly enhanced by the extract in a dose-dependent manner, and the expression of HO-1 protein was markedly enhanced too. CONCLUSION: The petroleum ether extract from Melilotus suaveolens Ledeb can resist inflammation by inhibiting the activation of proinflammatory factor NF-kappaB and enhancing the expression of anti-inflammatory factor HO-1.


Subject(s)
Anti-Inflammatory Agents/pharmacology , Gene Expression/drug effects , Heme Oxygenase-1/genetics , Melilotus/chemistry , NF-kappa B/genetics , Plant Extracts/pharmacology , Animals , Cell Line, Tumor , Ether/chemistry , Heme Oxygenase-1/immunology , Inflammation/drug therapy , Inflammation/genetics , Inflammation/immunology , Mice , NF-kappa B/immunology
15.
Zhejiang Da Xue Xue Bao Yi Xue Ban ; 32(5): 427-32, 2003 10.
Article in Chinese | MEDLINE | ID: mdl-14610745

ABSTRACT

OBJECTIVE: To observe the cytotoxic effect of thermo-chemotherapy with cisplatin on osteosarcoma OS-732 cell line and to explore its mechanism. METHODS: The osteosarcoma OS-732 cell line was treated with different temperature, cisplatin alone and 43 degrees C +cisplatin for 1 h, respectively and the in vitro cytotoxic effect was observed with MTT assay. The cell cycle and the apoptotic rate were analyzed with flow cytometry (FCM); the cellular apoptosis was observed also with electron microscope. RESULT: The cytotoxicity index increase markedly as the temperature elevated or the concentration of cisplatin increased. While treated with 43 degrees C hyperthermia and cisplatin simultaneously, the cytotoxicity index increased to 72.37%;the cell cycle of the treated OS-732 cells line was changed with marked increase in S phase and decreasing in G(2)/M phase. The apoptotic rate increased markedly with the highest of 56.47%. Electron microscope showed the characteristic apoptotic alterations. CONCLUSION: Hyperthermia with cisplatin enhance cytotoxicity on osteosarcoma OS-732 cell line and the induced cell apoptosis may be one of the mechanisms of enhanced cytotoxicity by thermo-chemotherapy.


Subject(s)
Antineoplastic Agents/pharmacology , Bone Neoplasms/therapy , Cisplatin/pharmacology , Hyperthermia, Induced , Osteosarcoma/therapy , Apoptosis/drug effects , Bone Neoplasms/pathology , Cell Line, Tumor , Combined Modality Therapy , DNA Damage , Flow Cytometry , Humans , Osteosarcoma/pathology
16.
Article in Chinese | WPRIM | ID: wpr-341982

ABSTRACT

<p><b>OBJECTIVE</b>To observe the cytotoxic effect of thermo-chemotherapy with cisplatin on osteosarcoma OS-732 cell line and to explore its mechanism.</p><p><b>METHODS</b>The osteosarcoma OS-732 cell line was treated with different temperature, cisplatin alone and 43 degrees C +cisplatin for 1 h, respectively and the in vitro cytotoxic effect was observed with MTT assay. The cell cycle and the apoptotic rate were analyzed with flow cytometry (FCM); the cellular apoptosis was observed also with electron microscope.</p><p><b>RESULT</b>The cytotoxicity index increase markedly as the temperature elevated or the concentration of cisplatin increased. While treated with 43 degrees C hyperthermia and cisplatin simultaneously, the cytotoxicity index increased to 72.37%;the cell cycle of the treated OS-732 cells line was changed with marked increase in S phase and decreasing in G(2)/M phase. The apoptotic rate increased markedly with the highest of 56.47%. Electron microscope showed the characteristic apoptotic alterations.</p><p><b>CONCLUSION</b>Hyperthermia with cisplatin enhance cytotoxicity on osteosarcoma OS-732 cell line and the induced cell apoptosis may be one of the mechanisms of enhanced cytotoxicity by thermo-chemotherapy.</p>


Subject(s)
Humans , Antineoplastic Agents , Pharmacology , Apoptosis , Bone Neoplasms , Pathology , Therapeutics , Cell Line, Tumor , Cisplatin , Pharmacology , Combined Modality Therapy , DNA Damage , Flow Cytometry , Hyperthermia, Induced , Osteosarcoma , Pathology , Therapeutics
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