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1.
J Ethnopharmacol ; 321: 117202, 2024 Mar 01.
Artigo em Inglês | MEDLINE | ID: mdl-37742878

RESUMO

ETHNOPHARMACOLOGICAL RELEVANCE: Ginkgo biloba L. is a well-known and highly regarded resource in Chinese traditional medicine due to its effectiveness and safety. Ginkgo Folium, the leaf of Ginkgo biloba L., contains biologically active constituents with diverse pharmacological activities. Recent studies have shown promising antitumor effects of the bioactive constituents found in Ginkgo Folium against various types of cancer cells, highlighting its potential as a natural source of antitumor agents. Further research is needed to elucidate the underlying mechanisms and optimize its therapeutic potential. AIM OF THE REVIEW: To provide a detailed understanding of the pharmacological activities of Ginkgo Folium and its potential therapeutic benefits for cancer patients. MATERIALS AND METHODS: In this study, we conducted a thorough and systematic search of multiple online databases, including PubMed, Web of Science, Medline, using relevant keywords such as "Ginkgo Folium," "flavonoids," "terpenoids," "Ginkgo Folium extracts," and "antitumor" to cover a broad range of studies that could inform our review. Additionally, we followed a rigorous selection process to ensure that the studies included in our review met the predetermined inclusion criteria. RESULTS: The active constituents of Ginkgo Folium primarily consist of flavonoids and terpenoids, with quercetin, kaempferol, isorhamnetin, ginkgolides, and bilobalide being the major compounds. These active constituents exert their antitumor effects through crucial biological events such as apoptosis, cell cycle arrest, autophagy, and inhibition of invasion and metastasis via modulating diverse signaling pathways. During the process of apoptosis, active constituents primarily exert their effects by modulating the caspase-8 mediated death receptor pathway and caspase-9 mediated mitochondrial pathway via regulating specific signaling pathways. Furthermore, by modulating multiple signaling pathways, active constituents effectively induce G1, G0/G1, G2, and G2/M phase arrest. Among these, the pathways associated with G2/M phase arrest are particularly extensive, with the cyclin-dependent kinases (CDKs) being most involved. Moreover, active constituents primarily mediate autophagy by modulating certain inflammatory factors and stressors, facilitating the fusion stage between autophagosomes and lysosomes. Additionally, through the modulation of specific chemokines and matrix metalloproteinases, active constituents effectively inhibit the processes of epithelial-mesenchymal transition (EMT) and angiogenesis, exerting a significant impact on cellular invasion and migration. Synergistic effects are observed among the active constituents, particularly quercetin and kaempferol. CONCLUSION: Active components derived from Ginkgo Folium demonstrate a comprehensive antitumor effect across various levels and pathways, presenting compelling evidence for their potential in new drug development. However, in order to facilitate their broad and adaptable clinical application, further extensive experimental investigations are required to thoroughly explore their efficacy, safety, and underlying mechanisms of action.


Assuntos
Ginkgo biloba , Quercetina , Humanos , Quercetina/farmacologia , Quempferóis , Extratos Vegetais/farmacologia , Extratos Vegetais/uso terapêutico , Flavonoides
2.
Zhongguo Zhen Jiu ; 42(4): 385-9, 2022 Apr 12.
Artigo em Chinês | MEDLINE | ID: mdl-35403396

RESUMO

OBJECTIVE: To assess the efficacy on relieving pain and improving the range of motion of shoulder joint in post-stroke shoulder-hand syndrome of phlegm-stasis obstruction in treatment of the combined therapy of eye acupuncture, Tengliao (Chinese herbal warm dressing technique) and rehabilitation training (eye acupuncture + Tengliao + rehabilitation) as compared with the combined treatment of Tengliao and rehabilitation training (Tengliao + rehabilitation) and the simple rehabilitation training (rehabilitation). METHODS: A total of 356 patients with post-stroke shoulder-hand syndrome of phlegm-stasis obstruction were randomized into an eye acupuncture + Tengliao + rehabilitation group (group A, 122 cases, 2 cases dropped off), a Tengliao + rehabilitation group (group B, 120 cases, 3 cases dropped off) and a rehabilitation group (group C, 114 cases, 1 case dropped off). In the group C, the basic treatment was combined with routine rehabilitation training. In the group B, on the base of the treatment as the group C, Tengliao was exerted. A medical bag composed of over 20 Chinese herbal materials was heated and dressed at the affected area, 30 min each time, 5 times weekly. In the group A, besides the treatment as the group B, eye acupuncture was applied to heart region, kidney region, upper jiao region and lower jiao region, 30 min each time, 5 times weekly. The treatment lasted 28 days in all of three groups. Separately, before treatment, in 7, 14, 21 and 28 days of treatment, as well as in 14 days after treatment of follow-up, the score of visual analogue scale (VAS) for pain, the score of guides to evaluation of permanent impairment (GEPI) and the score of National Institutes of Health stroke scale (NIHSS) were observed in each group. RESULTS: The scores of VAS, GEPI and NIHSS were all improved with the treatment lasting in the three groups (P<0.000 1). In 7, 14, 21 and 28 days of treatment and in follow-up as well, VAS scores in the group A were all lower than the group C (P<0.05). After 14 days of treatment, GEPI score showed increasing trend, while NIHSS score showed decreasing trend in the group A compared with the group B. Before treatment, GEPI score was lower and NIHSS score was higher in the group A compared with the group C (P<0.05). It was suggested that the illness was slightly serious in the group A. After propensity score matching, in 14, 21 and 28 days as well as in follow-up, GEPI scores in the group A were higher than the group C respectively (P<0.05). Regarding NIHSS score at each time point, the difference had no statistical significance between the group A and the group C (P>0.05). CONCLUSION: The combined therapy of eye acupuncture, Tengliao and rehabilitation training obtains a better efficacy on post-stroke shoulder-hand syndrome of phlegm-stasis obstruction as compared with rehabilitation training.


Assuntos
Terapia por Acupuntura , Distrofia Simpática Reflexa , Reabilitação do Acidente Vascular Cerebral , Acidente Vascular Cerebral , Pontos de Acupuntura , Terapia por Acupuntura/métodos , Humanos , Dor , Distrofia Simpática Reflexa/terapia , Acidente Vascular Cerebral/complicações , Resultado do Tratamento
3.
Biomed Res Int ; 2021: 1752570, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-34660782

RESUMO

This study is aimed at exploring the possible mechanism of action of the Suanzaoren decoction (SZRD) in the treatment of Parkinson's disease with sleep disorder (PDSD) based on network pharmacology and molecular docking. Traditional Chinese Medicine Systems Pharmacology (TCMSP) was used to screen the bioactive components and targets of SZRD, and their targets were standardized using the UniProt platform. The disease targets of "Parkinson's disease (PD)" and "Sleep disorder (SD)" were collected by OMIM, GeneCards, and DisGeNET databases. Thereafter, the protein-protein interaction (PPI) network was constructed using the STRING platform and visualized by Cytoscape (3.7.2) software. Then, the DAVID platform was used to analyze the Gene Ontology (GO) enrichment analysis and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway. Cytoscape (3.7.2) software was also used to construct the network of the "herb-component-target-pathway." The core active ingredients and core action targets of the drug were verified by molecular docking using AutoDock software. A total of 135 Chinese herbal components and 41 corresponding targets were predicted for the treatment of PDSD using SZRD. Fifteen important signaling pathways were screened, such as the cancer pathway, TNF signaling pathway, PI3K-AKT signaling pathway, HIF-1 signaling pathway, and Toll-like receptor signaling pathway. The results of molecular docking showed that the main active compounds could bind to the representative targets and exhibit good affinity. This study revealed that SZRD has the characteristics and advantages of "multicomponent, multitarget, and multipathway" in the treatment of PDSD; among these, the combination of the main active components of quercetin and kaempferol with the key targets of AKT1, IL6, MAPK1, TP53, and VEGFA may be one of the important mechanisms. This study provides a theoretical basis for further study of the material basis and molecular mechanism of SZRD in the treatment of PDSD.


Assuntos
Medicamentos de Ervas Chinesas/farmacologia , Quempferóis/farmacologia , Simulação de Acoplamento Molecular/métodos , Farmacologia em Rede/métodos , Doença de Parkinson/tratamento farmacológico , Quercetina/farmacologia , Transtornos do Sono-Vigília/tratamento farmacológico , Antioxidantes/farmacologia , Humanos , Medicina Tradicional Chinesa , Doença de Parkinson/complicações , Doença de Parkinson/patologia , Transdução de Sinais , Transtornos do Sono-Vigília/complicações , Transtornos do Sono-Vigília/patologia
4.
Artigo em Inglês | MEDLINE | ID: mdl-31110553

RESUMO

PURPOSE: To comprehensively evaluate the efficacy and safety of acupuncture combined with Chinese herbal medicine (CHM) in treating irritable bowel syndrome with diarrhea (IBS-D). METHODS: Relevant randomized controlled trials (RCTs) were systemically retrieved from electronic databases from inception to March 2018, including the Cochrane Central Register of Controlled Trials (CENTRAL), PubMed, EMBASE, China National Knowledge Infrastructure (CNKI), Chinese Biological Medical Database (CBM, SinoMed), China Science and Technology Journal Database (VIP), and Wan Fang Data. Meanwhile, pooled estimates, including the 95% confidence interval (CI), were calculated for primary and secondary outcomes of IBS-D patients. Besides, quality of relevant articles was evaluated using the Cochrane Collaboration's risk of bias tool, and the Review Manager 5.3 and Stata12.0 softwares were employed for analyses. RESULTS: A total of 21 RCTs related to IBS-D were included into this meta-analysis. Specifically, the pooled results indicated that (1) acupuncture combined with CHM might result in more favorable improvements compared with the control group (relative risk [RR] 1.29; 95% CI 1.24-1.35; P =0.03); (2) the combined method could markedly enhance the clinical efficacy in the meantime of remarkably reducing the scores of abdominal pain (standardized mean difference [SMD] -0.45; 95% CI -0.72, -0.17; P = 0.002), abdominal distention/discomfort (SMD -0.36; 95% CI -0.71, -0.01; P = 0.04), diarrhea (SMD -0.97; 95% CI -1.18, -0.75; P < 0.00001), diet condition (SMD -0.73; 95% CI -0.93, -0.52; P<0.00001), physical strength (SMD -1.25; 95% CI -2.32, -0.19; P = 0.02), and sleep quality (SMD -1.02; 95% CI -1.26, -0.77; P < 0.00001) compared with those in the matched groups treated with western medicine, or western medicine combined with CHM. Additionally, a metaregression analysis was constructed according to the name of prescription, acupuncture type, treatment course and publication year, and subgroup analyses stratified based on the names of prescriptions and acupoints location were also carried out, so as to explore the potential heterogeneities; and (3) IBS-D patients treated with the combined method only developed inconspicuous adverse events; more importantly, the combined treatment had displayed promising long-term efficacy. CONCLUSIONS: Findings in this study indicate that acupuncture combined with CHM is suggestive of an effective and safe treatment approach for IBS-D patients, which may serve as a promising method to treat IBS-D in practical application. However, more large-scale, multicenter, long-term, and high-quality RCTs are required in the future, given the small size, low quality, and high risk of the studies identified in this meta-analysis.

5.
Zhongguo Zhong Yao Za Zhi ; 43(6): 1276-1281, 2018 Mar.
Artigo em Chinês | MEDLINE | ID: mdl-29676140

RESUMO

To study the effect of Shenqi Dihuang decoction on inflammatory factor, renal function and microcirculation in patients with early diabetic nephropathy. A total of 205 cases of patient with early diabetic nephropathy treated in our hospital from March 2014 to April 2016 were selected and divided into two groups according to the admitted order, with 103 cases in clinical group and 102 in control group. Patients in control group were treated with melbine and captopril, which may be adjusted according to the clinical symptom. The clinical group was given Shenqi Dihuang decoction. Then the clinical efficady, inflammatory factors, renal function, endothelial function and hemorheology index were compared. Compared with 77.45% in the control group, the total effective rate of the clinical group was 92.23%. There was a significant increase (P<0.05). The comparison of the values of IL-6, IL-8, TNF-α and CRP between the two groups before and after treatment showed significant differences. The values of inflammatory factors in treatment group were lower than in control group (P<0.05). The comparison of the values of ß2-MG, Cys-C and urine m-ALB between the two groups before and after treatment showed significant differences. The values of renal function in treatment group were lower than those in control group (P<0.05). Compared with before treatment, ET-1 of the two groups after treatment decreased, while NO increased (P<0.05). Compared with the control group, the value of ET-1 in patients of the experimental group was lower after treatment, while NO was higher (P<0.05). The comparison of the values of whole blood viscosity, plasma viscosity, whole blood reduction viscosity, platelet aggregation rate and fibrinogen between the two groups before and after treatment showed significant differences. The value of hemorheology index in treatment group was lower than that in control group (P<0.05). Shenqi Dihuang decoction has a better effect on patients with early diabetic nephropathy. It can significantly intervene with inflammatory response, reduce proteinuria, protect the renal function of patients, and improve the patient's vascular endothelial function and blood rheology, so as to make microcirculation to recover to the normal level.


Assuntos
Nefropatias Diabéticas/tratamento farmacológico , Medicamentos de Ervas Chinesas/uso terapêutico , Humanos , Microcirculação , Proteinúria
6.
Chin J Integr Med ; 24(6): 409-414, 2018 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-28741060

RESUMO

OBJECTIVE: To study the efficacy of modified Wuzhuyu Decoction Granule (, MWDG) in the treatment of migraine patients with cold and stasis obstructing meridian syndrome. METHODS: This study was a randomized, double-blind, placebo-controlled trial. A total of 78 migraine patients with cold and stasis obstructing meridian syndrome were recruited and randomly assigned by a ratio of 2:1 into a treatment group (51 cases) and a placebo group (27 cases). Patients in the treatment group were treated with MWDG while placebo granules were applied in the control group. The treatment course lasted for 12 weeks with a follow-up of 4 weeks. The primary outcome measures included frequency and days of migraine attacks and the secondary outcome measures were analgesics consumption and visual analogue scale (VAS) scores. All outcome assessments were conducted respectively at baseline, the 4th, 8th and 12th week, and the end of follow-up. RESULTS: In the treatment group, significant decrease in frequency of migraine attacks were observed since the 4th week and that of analgesics consumption since the 8th week (both P<0.05). While, in the placebo group, significant decrease in frequency of migraine attacks were observed since the 8th week and that of analgesics consumption since the 12th week (both P<0.05). No significant decrease in days of migraine attacks and VAS scores of migraine pain were observed in both groups. Between the two groups, there were significant differences in VAS scores and intensity of pain appeared in the 8th week (P<0.05). However, no significant differences were found in days and frequency of migraine attacks and analgesics consumption (P>0.05). CONCLUSIONS: MWDG was probably effective in the treatment of migraine especially for alleviating pain intensity. Furthermore, MWDG could reduce the frequency of migraine attacks and analgesics consumption sooner than the placebo.


Assuntos
Meridianos , Transtornos de Enxaqueca/tratamento farmacológico , Adulto , Analgésicos/uso terapêutico , Demografia , Método Duplo-Cego , Medicamentos de Ervas Chinesas/efeitos adversos , Medicamentos de Ervas Chinesas/uso terapêutico , Feminino , Humanos , Masculino , Medição da Dor , Pacientes Desistentes do Tratamento , Placebos , Síndrome , Resultado do Tratamento
7.
Zhongguo Zhong Yao Za Zhi ; 39(7): 1280-4, 2014 Apr.
Artigo em Chinês | MEDLINE | ID: mdl-25011269

RESUMO

OBJECTIVE: To observe the inhibitory effect of different extract fractions from Longdan Xiegan decoction on biofilms of Candida albicans, and discuss its possible mechanism. METHOD: The micro-dilution method and the XTT reduction assay were adopted to explore the antifungal activity of different extract fractions from Longdan Xiegan decoction and detect the inhibitory effect of different extracts on biofilms of C. albicans. The expression quantity of the adhesion related gene ALS1 and hypha formation SUN41 were detected by qRT-PCR. RESULT: The MICs of extracts from Longdan Xiegan decoction, including petroleum ether, water, butanol, methanol and ethyl acetate, against C. albicans were > 1 000, > 1 000, > 1 000, 125, 125 mg x L(-1). The SMIC50 against biofilms of C. albicanswere > 1 000, > 1000, > 1 000, 500, 500 mg x L(-1). The SMIC50 were > 1 000, > 1 000, > 1 000, > 1 000 and 1 000 mg x L(-1). 1 000 mg x L(-1) ethyl acetate extracts could considerably inhibit the expression of the adhesion related gene ALS1 and hypha formation SUN41. CONCLUSION: The ethyl acetate extract showed the greatest activity against Candida albicans biofilms.


Assuntos
Antifúngicos/farmacologia , Biofilmes/efeitos dos fármacos , Candida albicans/efeitos dos fármacos , Medicamentos de Ervas Chinesas/farmacologia , Biofilmes/crescimento & desenvolvimento , Candida albicans/crescimento & desenvolvimento , Candidíase/tratamento farmacológico , Candidíase/microbiologia , Humanos , Hifas/efeitos dos fármacos , Hifas/crescimento & desenvolvimento , Testes de Sensibilidade Microbiana
8.
J Food Sci ; 78(6): H936-42, 2013 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-23772706

RESUMO

Although the anticancer effects of garlic and its products have been demonstrated by a variety of studies; however, few studies were conducted to investigate the effects of garlic on the adverse effects of chemo/radiotherapy. In order to clarify the above question and make a more comprehensive understanding of the anticancer effects of garlic, tumor xenograft mice model was established by subcutaneous injection of H22 tumor cells, and was used for the investigation of effects of garlic oil (GO) on the chemo/radiotherapy. In the chemotherapy test, tumor-bearing mice were treated with cyclophosphamide (CTX) or CTX plus GO (25 or 50 mg/kg bw) for 14 d, while the mice received a single 5 Gy total body radiation or radiation plus GO (25 or 50 mg/kg bw) in radiotherapy test. The results showed that GO did not increase the tumor inhibitory rate of CTX/radiation, which indicated that GO could not enhance the chemo/radiosensitivity of cancer cells. However, the decrease of the peripheral total white blood cells (WBCs) count induced by CTX/radiation was significantly suppressed by GO cotreatment. Furthermore, GO cotreatment significantly inhibited the decrease of the DNA contents and the micronuclei ratio of the bone marrow. Lastly, the reduction of the endogenous spleen colonies induced by CTX/radiation was significantly suppressed by GO cotreatment. These findings support the idea that GO consumption may benefit for the cancer patients receiving chemotherapy or radiotherapy.


Assuntos
Compostos Alílicos/farmacologia , Protocolos de Quimioterapia Combinada Antineoplásica/efeitos adversos , Alho/química , Doenças Hematológicas/tratamento farmacológico , Óleos de Plantas/farmacologia , Sulfetos/farmacologia , Animais , Antineoplásicos , Linhagem Celular Tumoral , Ensaio de Unidades Formadoras de Colônias , Ciclofosfamida/efeitos adversos , Modelos Animais de Doenças , Doenças Hematológicas/etiologia , Masculino , Camundongos , Testes para Micronúcleos , Neoplasias/tratamento farmacológico , Neoplasias/radioterapia , Baço/citologia , Baço/metabolismo
9.
Int J Biol Sci ; 8(3): 363-74, 2012.
Artigo em Inglês | MEDLINE | ID: mdl-22393308

RESUMO

To investigate the protective effects and the possible mechanisms of garlic oil (GO) against N-nitrosodiethylamine (NDEA)-induced hepatocarcinoma in rats, Wistar rats were gavaged with GO (20 or 40 mg/kg) for 1 week, and then were gavaged with GO and NDEA (10 mg/kg) for the next 20 weeks. The changes of morphology, histology, the biochemical indices of serum, and DNA oxidative damage of liver were examined to assess the protective effects. Lipid peroxidation (LPO), antioxidant defense system, and apoptosis-related proteins were measured to investigate potential mechanisms. At the end of the study (21 weeks), GO administration significantly inhibited the increase of the nodule incidence and average nodule number per nodule-bearing liver induced by NDEA, improved hepatocellular architecture, and dramatically inhibited NDEA-induced elevation of serum biochemical indices (alanine aminotransferase , aspartate aminotransferase, alkaline phosphatase and gamma-glutamyl transpeptidase) and hepatic 8-hydroxy-2'-deoxyguanosine (8-OHdG) levels in a dose-dependent manner. The mechanistic studies demonstrated that GO counteracted NDEA-induced oxidative stress in rats illustrated by the restoration of glutathione (GSH), superoxide dismutase (SOD), catalase (CAT), glutathione reductase (GR), glutathione peroxidase (GPx), glutathione-S-transferase (GST) levels, and the reduction of the malondialdehyde (MDA) levels in liver. Furthermore, the mRNA and protein levels of Bcl-2, Bcl-xl, andß-arrestin-2 were significantly decreased whereas those of Bax and caspase-3 were significantly increased. These data suggest that GO exhibited significant protection against NDEA-induced hepatocarcinogenesis, which might be related with the enhancement of the antioxidant activity and the induction of apoptosis.


Assuntos
Compostos Alílicos/uso terapêutico , Anticarcinógenos/uso terapêutico , Antioxidantes/uso terapêutico , Neoplasias Hepáticas Experimentais/prevenção & controle , Sulfetos/uso terapêutico , 8-Hidroxi-2'-Desoxiguanosina , Compostos Alílicos/farmacologia , Animais , Anticarcinógenos/farmacologia , Antioxidantes/farmacologia , Proteínas Reguladoras de Apoptose/análise , Biomarcadores , Peso Corporal/efeitos dos fármacos , Óleo de Milho/farmacologia , Dano ao DNA/efeitos dos fármacos , Desoxiguanosina/análogos & derivados , Desoxiguanosina/análise , Dietilnitrosamina/toxicidade , Ensaios de Seleção de Medicamentos Antitumorais , Perfilação da Expressão Gênica , Peroxidação de Lipídeos/efeitos dos fármacos , Fígado/efeitos dos fármacos , Fígado/metabolismo , Fígado/patologia , Testes de Função Hepática , Neoplasias Hepáticas Experimentais/induzido quimicamente , Masculino , Tamanho do Órgão/efeitos dos fármacos , Estresse Oxidativo/efeitos dos fármacos , Oxirredutases/análise , Distribuição Aleatória , Ratos , Ratos Wistar , Sulfetos/farmacologia
10.
Steroids ; 77(3): 241-9, 2012 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-22198527

RESUMO

Although estradiol has been reported to influence pain sensitivity, the role of estriol (an estradiol metabolite and another widely used female sex hormone) remains unclear. In this study, pain behavior tests, whole-cell patch clamp recording and Western blotting were used to determine whether estriol plays a role in pain signal transduction and transmission. Either systemic or local administration of 17ß-estradiol produced a significant rise of mechanical pain threshold, while estriol lacked this effect in normal and ovariectomized (OVX) rats following estriol replacement. Local administration of 17ß-estradiol or estriol significantly decreased ATP-induced spontaneous hind-paw withdrawal duration (PWD), which was blocked by an estrogen receptor antagonist, ICI 182, 780. However, systemic application of estriol in normal or OVX rats lacked this similar effect. In cultured dorsal root ganglion neurons, estriol attenuated α,ß-methylene ATP-induced transient currents which were blocked by ICI 182, 780. In complete Freund's adjuvant treated (CFA) rats, systemic application of 17ß-estradiol or estriol decreased the mechanical pain threshold significantly, but did not change the inflammatory process. Similar effects were observed after estriol replacement in OVX rats. The expression of c-fos in lumbosacral spinal cord dorsal horn (SCDH) was increased significantly by administration of 17ß-estradiol but not estriol, and not by estriol replacement in OVX rats. These results suggest that 17ß-estradiol but not estriol plays an anti-hyperalgesic role in physiological pain. However, both peripheral 17ß-estradiol and estriol play anti-hyperalgesic roles in ATP-induced inflammatory pain. Systemic application of estriol as well as 17ß-estradiol plays hyperalgesic roles in CFA-induced chronic pain.


Assuntos
Comportamento Animal/efeitos dos fármacos , Dor Crônica/tratamento farmacológico , Estradiol/farmacologia , Estriol/farmacologia , Limiar da Dor/efeitos dos fármacos , Trifosfato de Adenosina/administração & dosagem , Trifosfato de Adenosina/análogos & derivados , Trifosfato de Adenosina/metabolismo , Trifosfato de Adenosina/farmacologia , Analgésicos/administração & dosagem , Analgésicos/farmacologia , Animais , Western Blotting , Células Cultivadas , Dor Crônica/induzido quimicamente , Dor Crônica/metabolismo , Estradiol/administração & dosagem , Estradiol/análogos & derivados , Estriol/administração & dosagem , Feminino , Adjuvante de Freund/efeitos adversos , Fulvestranto , Gânglios Espinais/efeitos dos fármacos , Gânglios Espinais/metabolismo , Inflamação/induzido quimicamente , Inflamação/tratamento farmacológico , Inflamação/metabolismo , Ovariectomia , Técnicas de Patch-Clamp , Células do Corno Posterior/efeitos dos fármacos , Células do Corno Posterior/metabolismo , Proteínas Proto-Oncogênicas c-fos/metabolismo , Ratos , Ratos Sprague-Dawley , Receptores de Estrogênio/antagonistas & inibidores , Transdução de Sinais
11.
Zhonghua Yu Fang Yi Xue Za Zhi ; 45(10): 929-33, 2011 Oct.
Artigo em Chinês | MEDLINE | ID: mdl-22321596

RESUMO

OBJECTIVE: To study the protective impact of tea polyphenols (TP) on the injury of fibrinolytic functions induced by high-methionine dietary in rats. METHODS: 50 male Wistar rats were divided by stratified based on body weight into 5 groups with 10 in each group: namely control group, model group, low-dose TP group, medium-dose TP group and high-dose TP group. The rats in model group and TP groups were fed with 3% methionine dietary, control group rats with routine diet. In addition, rats in low-dose, medium-dose and high-dose TP groups were treated with TP at 50, 100 and 200 mg/kg dosage respectively by gavages every day, control group and model group rats were given with same amount distilled water. The animals were sacrificed after 8 weeks. The levels of tissue-type plasminogen activator (t-PA) and type-1 plasminogen activator inhibitor (PAI-1) in plasma were determined by ELISA assays, mRNA levels of t-PA and PAI-1 in aortic arch were detected by RT-PCR, t-PA and PAI-1 expression in aortic arch were detected by immunohistochemistry strept-avidin-biotin complex (SABC). RESULTS: After experiment, the t-PA expression of aortic arch in control group, model group, low-dose TP group, medium-dose TP group and high-dose TP group were 133.03 ± 10.14, 95.46 ± 11.08, 111.97 ± 11.91, 130.23 ± 10.80, 139.39 ± 9.41 (F = 14.15, P < 0.01), respectively, and the PAI-1 expression were 90.91 ± 8.67, 166.76 ± 12.18, 139.63 ± 12.71, 134.66 ± 13.19, 109.49 ± 10.82 (F = 31.44, P < 0.01). The t-PA concentration of plasma were (10.69 ± 1.26), (6.13 ± 0.92), (8.56 ± 1.19), (9.69 ± 0.92), (11.97 ± 1.08) ng/ml, respectively (F = 41.98, P < 0.01), and the PAI-1 concentration of plasma were (6.31 ± 0.81), (16.98 ± 1.27), (11.39 ± 0.82), (8.46 ± 0.67), (8.08 ± 0.91) ng/ml, respectively (F = 207.74, P < 0.01). The mRNA levels of t-PA in aortic arch were 1.12 ± 0.02, 0.75 ± 0.14, 1.01 ± 0.09, 0.95 ± 0.08, 1.05 ± 0.13 (F = 5.77, P < 0.05), and the mRNA levels of PAI-1 in aortic arch were 1.25 ± 0.11, 1.74 ± 0.06, 1.23 ± 0.05, 1.09 ± 0.14, 1.23 ± 0.04 (F = 23.56, P < 0.01). CONCLUSION: The results indicate that TP seems to have regulatory function on transcription and protein levels of t-PA and PAI-1, in addition to maintaining the balance between PAI-1 and t-PA and healing the injury of fibrinolytic functions in rats induced by high-methionine dietary.


Assuntos
Fibrinólise/efeitos dos fármacos , Metionina/efeitos adversos , Polifenóis/farmacologia , Animais , Dieta , Masculino , Inibidor 1 de Ativador de Plasminogênio/sangue , Ratos , Ratos Wistar , Chá/química , Ativador de Plasminogênio Tecidual/sangue
12.
Zhonghua Zhong Liu Za Zhi ; 26(12): 722-5, 2004 Dec.
Artigo em Chinês | MEDLINE | ID: mdl-15733388

RESUMO

OBJECTIVE: To investigate the effect of ginsenoside-Rg3 on lung metastasis of ribonuclease inhibitor (RI) gene-transfected mouse B16 melanoma. METHODS: C57BL/6 mice were iv injected with parental or RI-transfected B16 melanoma cells. Lung metastasis was assessed by the number of surface tumor nodules. Mice were divided into 6 groups. Group I, II and III of mice were given parental, mock-transfected and RI-transfected B16 melanoma cells, respectively while in group IV, V and VI, Rg3 (1.5 mg/kg, iv q.o.d. x 10) was given to mice bearing parental, mock-transfected and RI-transfected B16 melanoma, respectively. Micovessel density (MVD) of the lung metastatic tumor was assessed by immunohistochemical staining of factor VIII-R expression. RESULTS: The number of tumor nodules was significantly decreased in mice injected with RI-transfected B16 melanoma (Gp III, compared to Gp I and II). Rg3 treatment per se could also decrease the number of lung tumor nodules but to a lesser extent (Gp IV and V compared to Gp III). However, Rg3 synergized with RI transfection resulting in most significant inhibition of lung metastasis (Gp VI). Mice in Gp I and II died within 26 days of the experiment, whereas all the mice in Gp VI were alive during the observation period of one and one half month. MVD was significantly decreased in the lung tumor nodules in mice injected with RI-transfected B16 melanoma. It was further decreased when additional Rg3 was given (Gp VI). CONCLUSION: Transfection of ribonuclease inhibitor gene significantly reduces the metastatic potential of B16 melanoma. Ginsenoside-Rg3 has a synergistic effect.


Assuntos
Ginsenosídeos/farmacologia , Neoplasias Pulmonares/secundário , Melanoma Experimental/patologia , Hormônios Placentários/genética , Transfecção , Animais , Antineoplásicos Fitogênicos/farmacologia , Linhagem Celular Tumoral , Ginsenosídeos/isolamento & purificação , Neoplasias Pulmonares/patologia , Masculino , Melanoma Experimental/genética , Camundongos , Camundongos Endogâmicos C57BL , Transplante de Neoplasias , Panax/química
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