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1.
Zhonghua Jie He He Hu Xi Za Zhi ; 45(2): 222-226, 2022 Feb 12.
Artigo em Chinês | MEDLINE | ID: mdl-35135094

RESUMO

Recently investigators pay more attention to the relationship between obesity and bronchial asthma (asthma).Obesity is increasingly recognized as a possible risk factor for childhood asthma, and 70% of patients with difficult-to-treat asthma are overweight or obese. In recent years, ketogenic diet, as one of the natural therapies, has been shown to have positive effects on weight loss process; and recent studies showed that ketogenic diet reduced airway inflammation in asthma. This review summarized the mechanisms of associations between obesity and asthma, and described the potential mechanisms of ketogenic diet affecting obese asthma, such as controlling body weight, reducing inflammatory response, regulating intestinal flora and modifying epigenetics, to provide new ideas for the prevention and treatment of obesity asthma.


Assuntos
Asma , Dieta Cetogênica , Peso Corporal , Criança , Humanos , Obesidade/complicações , Sobrepeso
2.
Zhonghua Xin Xue Guan Bing Za Zhi ; 46(7): 543-548, 2018 Jul 24.
Artigo em Chinês | MEDLINE | ID: mdl-30032545

RESUMO

Objective: To investigate the efficacy of periprocedural use of bivalirudin for patients with chronic total occlusion(CTO) lesion undergoing percutaneous coronary intervention(PCI) therapy. Methods: In this randomized controlled study, 74 patients with CTO lesions confirmed by coronary angiography or CT angiography, hospitalized in the general hospital of Shenyang military region from September 2015 to December 2016, were randomly divided into unfractionated heparin(UFH) group (n=38) and bivalirudin group (n=36) by the random number table.Patients in the UFH group were treated with injection of UFH 5 000 U through the artery sheath catheter before coronary angiography,and the UFH was intravenously administered at 100 U/kg before PCI. Patients in the bivalirudin group received intravenous injection of bivalirudin (0.75 mg/kg) before coronary angiography, followed by intravenous infusion of 1.75 mg·kg(-1)·h(-1) until at least 2 hours after the PCI. The values of the activated coagulation time (ACT) were measured,and the value was remained at 250 to 350 seconds during the PCI. The incidence rate of adverse events including hemorrhage events, no-reflow/slow flow, and contact thrombus in perioperative period were observed in all patients. In addition, the incidence rate of the major adverse cardiovascular events (MACE) including recurrent angina, heart failure, target vessel revascularization, cardiac death, non-fatal myocardial infarction,and stroke within 1 year follow-up period were also observed in the 2 groups. Results: Baseline clinical and PCI data were similar between the 2 groups (all P>0.05). During the perioperative period, the incidence of the bleeding was significantly lower in the bivalirudin group than in the UFH group(5.6% (2/36) vs. 23.7% (9/38) , P=0.028).The incidence of no-reflow/slow flow was also significantly lower in the bivalirudin group than in the UFH group(0 vs. 15.8% (6/38) , P=0.025). There was no significant difference in the incidence of contact thrombosis between bivalirudin group and UFH group(8.3% (3/36) vs. 0, P=0.110). There was no cardiac death or non-fatal myocardial infarction in the 2 groups within 1 year after PCI, and there was no significant difference in the incidence of MACE in 1 year follow-up after operation between bivalirudin group and UFH group (11.1% (4/36) vs. 21.1% (8/38) , P=0.246). Conclusion: The application of the anticoagulant bivalirudin during PCI in patients with CTO lesion can reduce the incidence of perioperative bleeding and no-reflow/slow flow, and does not increase the risk of MACE within 1 year after PCI.


Assuntos
Antitrombinas , Oclusão Coronária , Hirudinas , Fragmentos de Peptídeos , Intervenção Coronária Percutânea , Anticoagulantes , Antitrombinas/administração & dosagem , Oclusão Coronária/terapia , Heparina/administração & dosagem , Hirudinas/administração & dosagem , Humanos , Fragmentos de Peptídeos/administração & dosagem , Proteínas Recombinantes/administração & dosagem , Resultado do Tratamento
3.
J Ethnopharmacol ; 110(2): 356-63, 2007 Mar 21.
Artigo em Inglês | MEDLINE | ID: mdl-17134862

RESUMO

Curcuma longa L. (turmeric) has been used for centuries in traditional Chinese medicine as a treatment for mental disorders including depression. The studies described here were undertaken to determine the behavioral, neurochemical and neuroendocrine effects of the ethanolic extract from Curcuma longa using the forced swimming test (FST) in male ICR strain of mice. The ethanolic extract was found to reduce the duration of immobility in the mouse FST when orally administered for 21 days. The extract markedly attenuated swim stress-induced decreases in serotonin, 5-hydroxyindoleacetic acid, noradrenaline and dopamine concentrations, as well as increases in serotonin turnover. Furthermore, the ethanolic extract of Curcuma longa significantly reversed the swim stress-induced increases in serum corticotropin-releasing factor and cortisol levels. Under these conditions, the ethanolic extract of Curcuma longa was partly different from fluoxetine and amitriptyline. These results suggested that antidepressant properties of the ethanolic extract of Curcuma longa was mediated through regulations of neurochemical and neuroendocrine systems and it may be a useful agent against depression.


Assuntos
Comportamento Animal/efeitos dos fármacos , Curcuma , Depressão/tratamento farmacológico , Sistemas Neurossecretores/efeitos dos fármacos , Extratos Vegetais/farmacologia , Amitriptilina/farmacologia , Animais , Antidepressivos/farmacologia , Dopamina/metabolismo , Etanol , Fluoxetina/farmacologia , Ácido Hidroxi-Indolacético/metabolismo , Masculino , Camundongos , Camundongos Endogâmicos ICR , Norepinefrina/metabolismo , Fitoterapia , Serotonina/metabolismo , Estresse Psicológico/tratamento farmacológico , Natação
4.
J Ethnopharmacol ; 103(3): 357-65, 2006 Feb 20.
Artigo em Inglês | MEDLINE | ID: mdl-16182482

RESUMO

We investigated the hypouricemic effects of cassia oil extracted from Cinnamomum cassia using hyperuricemic mice induced by potassium oxonate, and its inhibitory actions against liver xanthine dehydrogenase (XDH) and xanthine oxidase (XOD) activities. Oral administration of cassia oil significantly reduced serum and hepatic urate levels in hyperuricemic mice in a time- and dose-dependent manner. At doses of 450 mg/kg of cassia oil or above, serum urate levels of the oxonate-pretreated mice were not different from the normal control mice. Cassia oil at 600 mg/kg was found to be as potent as allopurinol, which reduced hepatic urate levels to lower than normal. In normal mice, urate levels in liver, but not in serum, were altered with dose-dependent decrease after cassia oil treatment. Furthermore, the ratio, liver uric acid/serum uric acid, was determined after cassia oil administration with time- and dose-dependent decreases in hyperuricemic mice. The positive dose-dependent decrease ratio was also observed after cassia oil treatment in the normal animals. The decreased extent of ratio elicited by cassia oil in normal mice appeared to be greater than that in the hyperuricemic animal. In addition, cassia oil significantly exhibited marked reductions in liver XDH/XOD activities, with an apparent dose-dependence in the normal and hyperuricemic mice. The onset of inhibition in enzyme activities elicited by allopurinol was much higher than that elicited by cassia oil. These results suggested that hypouricemic effects of cassia oil could be explained, at least partly, by inhibiting liver in vivo activities of XDH/XOD.


Assuntos
Cinnamomum aromaticum , Fígado/efeitos dos fármacos , Óleos de Plantas/farmacologia , Xantina Desidrogenase/antagonistas & inibidores , Xantina Oxidase/antagonistas & inibidores , Administração Oral , Alopurinol/administração & dosagem , Alopurinol/farmacologia , Animais , Relação Dose-Resposta a Droga , Inibidores Enzimáticos/farmacologia , Hiperuricemia/sangue , Hiperuricemia/induzido quimicamente , Hiperuricemia/enzimologia , Fígado/metabolismo , Masculino , Camundongos , Camundongos Endogâmicos ICR , Ácido Oxônico , Casca de Planta , Óleos de Plantas/administração & dosagem , Fatores de Tempo , Ácido Úrico/sangue , Xantina Desidrogenase/metabolismo , Xantina Oxidase/metabolismo
5.
Hum Exp Toxicol ; 34(11): 1148-61, 2015 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-25669660

RESUMO

Levo-Carnitine (l-carnitine) is widely used in health and food. This study was to focus on the adverse effects of 8-week oral supplementation of l-carnitine (0.3 and 0.6 g/kg) in female and male Sprague Dawley rats. l-carnitine reduced body and fat weights, as well as serum, liver, and kidney lipid levels in rats. Simultaneously, hepatic fatty acid ß-oxidation and lipid synthesis were disturbed in l-carnitine-fed rats. Moreover, l-carnitine accelerated reactive oxygen species production in serum and liver, thereby triggering hepatic NOD-like receptor 3 (NLRP3) inflammasome activation to elevate serum interleukin (IL)-1ß and IL-18 levels in rats. Alteration of serum alkaline phosphatase levels further confirmed liver dysfunction in l-carnitine-fed rats. Additionally, l-carnitine may potentially disturb kidney function by altering renal protein levels of rat organic ion transporters. These observations may provide the caution information for the safety of long-term l-carnitine supplementation.


Assuntos
Carnitina/efeitos adversos , Suplementos Nutricionais/efeitos adversos , Rim/efeitos dos fármacos , Fígado/efeitos dos fármacos , Fosfatase Alcalina/metabolismo , Animais , Nitrogênio da Ureia Sanguínea , Peso Corporal/efeitos dos fármacos , Proteínas de Transporte/metabolismo , Feminino , Interleucina-18/sangue , Interleucina-1beta/sangue , Rim/metabolismo , Rim/patologia , Metabolismo dos Lipídeos/efeitos dos fármacos , Lipídeos/sangue , Fígado/metabolismo , Fígado/patologia , Masculino , Proteína 3 que Contém Domínio de Pirina da Família NLR , Ratos Sprague-Dawley
6.
Phytochemistry ; 46(6): 1035-8, 1997 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-9396170

RESUMO

Repeated fractionations of the methanol extract of the subterranean parts (rhizomes and roots) of Gentiana siphonantha afforded two new and five known secoiridoids, in addition to the widespread plant constituents beta-sitiosterol, daucosterol and oleanolic acid. The structures of the new acyl secoiridoid glycosides were elucidated as 6'-gentisoyl 8-epikingiside and 2'-gentisoyl gelidoside mainly by a combination of high field NMR techniques. The known secoiridoids were identified as gentiolactone, gentiopicroside, sweroside, gelidoside and trifloroside. None of these constituents was active against human pathogenic fungi (Candida albican, Aspergillus flavus and Trichoderma viride). The chemotaxonomic significance of the isolates is discussed briefly.


Assuntos
Glucosídeos/química , Glucosídeos/isolamento & purificação , Extratos Vegetais/química , Extratos Vegetais/isolamento & purificação , Plantas Medicinais , Piranos/química , Piranos/isolamento & purificação , Rauwolfia/química , Antifúngicos/farmacologia , Glucosídeos/farmacologia , Humanos , Glucosídeos Iridoides , Iridoides , Espectroscopia de Ressonância Magnética , Extratos Vegetais/farmacologia , Plantas Medicinais/química , Piranos/farmacologia , Espectrometria de Massas de Bombardeamento Rápido de Átomos
7.
Phytochemistry ; 47(7): 1223-6, 1998 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-9611826

RESUMO

Repetitive chromatography of the methanol extract of the roots of Gentiana tibetica afforded two new secoiridoid glycosides and a novel antifungal anthranilic acid derivative, together with beta-sitosterol, daucosterol, oleanolic acid, loganic acid, gentiopicroside, sweroside, 2'-(2,3-dihydroxybenzoyl)sweroside, trifloroside, rindoside and macrophylloside A. The structures of the new products were determined mainly by spectroscopic methods as 8-hydroxy-10-hydrosweroside, isomacrophylloside and ethyl N-docosanoylanthranilate. Ethyl N-docosanoylanthranilate inhibited the growth of the human pathogenic fungi Candida albicans and Aspergillus flavus. The taxonomic significance of the constituent is discussed briefly.


Assuntos
Antifúngicos/isolamento & purificação , Glucosídeos/isolamento & purificação , Iridoides , Raízes de Plantas/química , Plantas Medicinais/química , Piranos/isolamento & purificação , ortoaminobenzoatos/isolamento & purificação , Antifúngicos/química , Antifúngicos/farmacologia , Aspergillus flavus/efeitos dos fármacos , Candida albicans/efeitos dos fármacos , Configuração de Carboidratos , Cromatografia em Gel , Cromatografia por Troca Iônica , Glucosídeos/química , Glucosídeos/farmacologia , Glucosídeos Iridoides , Espectroscopia de Ressonância Magnética , Medicina Tradicional Chinesa , Piranos/química , Piranos/farmacologia , ortoaminobenzoatos/química , ortoaminobenzoatos/farmacologia
8.
Phytochemistry ; 58(4): 645-51, 2001 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-11576616

RESUMO

Fractionation of the xanthine oxidase inhibitory methanol extract of Conyza bonariensis afforded three glycosides, in addition to nine known compounds including amyrin, beta-sitostero1 daucosterol, syringic acid 3-hydroxy-5-methoxybenzoic acid, eugenol 4-O-glucopyranoside, and luteolin, apigenin and takakin 8-O-glucuronide. The structures of the glycosides were established by a combination of spectroscopic methods (IR, MS, 1H and 13C NMR, DEPT, COSY, HMQC and HMBC) as 4-hydroxypyridin-3-carboxylic acid 4-O-glucopyranoside, 8-hydroxy-6,7-dihydrolinalool 8-O-glucopyranoside and bonaroside [viz. 1,3,4,12-tetrahydroxy-2-(9-hexadecenoylamino)octadecane 1-O-glucopyranoside]. The in vitro enzyme assay showed that syringic acid and takakin 8-O-glucuronide displayed weak inhibitory activity against xanthine oxidase with IC50 values of 500+/-41 microM and 170+/-12 microM, respectively.


Assuntos
Asteraceae/química , Inibidores Enzimáticos/isolamento & purificação , Glucosídeos/isolamento & purificação , Xantina Oxidase/antagonistas & inibidores , Configuração de Carboidratos , Inibidores Enzimáticos/química , Glucosídeos/química , Análise Espectral
9.
Med Hypotheses ; 59(4): 367-72, 2002 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-12208173

RESUMO

Cancer remains one of the leading causes of death throughout the world. One of the important reasons why conventional treatments fail is the development of resistance to therapeutics. The dual effect concept and self-defense mechanism plus the threshold theory might in part explain the development of resistance, however, the primary cause is unclear. A novel theory, 'cell brain', where, selective crystallization of the 'brain' of a cell (comprising centrosome, centrioles and the connecting filaments) occurs, may be a potential alternate approach to cancer therapy.


Assuntos
Encéfalo/fisiopatologia , Neoplasias/terapia , Animais , Centrossomo/fisiologia , Humanos , Modelos Neurológicos , Neoplasias/genética
10.
J Ethnopharmacol ; 83(1-2): 161-5, 2002 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-12413724

RESUMO

Curcuma longa (turmeric) is a well-known indigenous herbal medicine. The aqueous extracts, when administered orally to the mice from 140 to 560 mg/kg for 14 days, were able to elicit dose-dependent relation of immobility reduction in the tail suspension test and the forced swimming test in mice. The effects of the extracts at the dose of 560 mg/kg were more potent than that of reference antidepressant fluoxetine. The extracts, at the dose of 140 mg/kg or above for 14 days, significantly inhibited the monoamine oxidize A (MAO) activity in mouse whole brain at a dose-dependent manner, however, oral administration of the extract only at a dose of 560 mg/kg produced observable MAO B inhibitory activity in animal brain. Fluoxetine showed only a tendency to inhibit MAO A and B activity in animal brain in the study. Neither the extracts of C. longa nor fluoxetine, at the doses tested, produced significant effects on locomotor activity. These results demonstrated that C. longa had specifically antidepressant effects in vivo. The activity of C. longa in antidepression may mediated in part through MAO A inhibition in mouse brain.


Assuntos
Antidepressivos/farmacologia , Curcuma , Monoaminoxidase/metabolismo , Fitoterapia , Extratos Vegetais/farmacologia , Administração Oral , Animais , Antidepressivos/administração & dosagem , Antidepressivos/uso terapêutico , Encéfalo/efeitos dos fármacos , Encéfalo/metabolismo , Depressão/tratamento farmacológico , Relação Dose-Resposta a Droga , Fluoxetina/administração & dosagem , Fluoxetina/farmacologia , Fluoxetina/uso terapêutico , Masculino , Camundongos , Camundongos Endogâmicos ICR , Mitocôndrias/efeitos dos fármacos , Mitocôndrias/metabolismo , Atividade Motora/efeitos dos fármacos , Extratos Vegetais/administração & dosagem , Extratos Vegetais/uso terapêutico
11.
J Ethnopharmacol ; 91(2-3): 351-5, 2004 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-15120460

RESUMO

A total of seventeen phytochemicals including seven alkaloids (piperine, strychnine, brucine, stachydrine, tetrandrine, frangchinoline and sinomenine), four phenols (paeonol, honokiol, magnolol and eugenol) and six anthraquinones (emodin, rhein, chrysorphanol, aloe-emodin, physcion and 1,8-dihydroxyanthraquinone) was examined for inhibitory activity of monoamine oxidase (MAO) A and B from rat brain mitochondrial. Among these compounds, piperine and paeonol were found to be inhibitory against MAO A in a dose-dependent manner with IC(50) values of 49.3 and 54.6 microM, respectively. Piperine, paeonol and emodin were shown to inhibit MAO B in a dose-dependent manner with the IC(50) data of 91.3, 42.5 and 35.4 microM, respectively. Lineweaver-Burk transformation of the inhibition data indicated that the inhibitory action of piperine on MAO A was of mixed type, and that of paeonol on the same type of the enzyme was of non-competitive type. For piperine, the K(i) and K(I) were determined to be 35.8 and 25.7microM, respectively. For paeonol, the K(i) was estimated to be 51.1 microM. The inhibition of piperine and paeonol on MAO B was of competitive type with K(i) values of 79.9 and 38.2 microM, respectively. The inhibition of emodin on MAO B was of mixed type with the K(i) and K(I) data of 15.1 and 22.9 microM, respectively. The present investigation showed that the phytochemicals piperine, paeonol and emodin are potent MAO inhibitors whereas other compounds were inactive against any type of MAO at 100 microM in the present assay.


Assuntos
Inibidores da Monoaminoxidase/farmacologia , Monoaminoxidase/efeitos dos fármacos , Fitoterapia , Extratos Vegetais/farmacologia , Plantas Medicinais , Alcaloides/administração & dosagem , Alcaloides/farmacologia , Alcaloides/uso terapêutico , Animais , Antraquinonas/administração & dosagem , Antraquinonas/farmacologia , Antraquinonas/uso terapêutico , Encéfalo/efeitos dos fármacos , Encéfalo/enzimologia , Mitocôndrias/efeitos dos fármacos , Mitocôndrias/enzimologia , Inibidores da Monoaminoxidase/administração & dosagem , Inibidores da Monoaminoxidase/uso terapêutico , Fenóis/administração & dosagem , Fenóis/farmacologia , Fenóis/uso terapêutico , Extratos Vegetais/administração & dosagem , Extratos Vegetais/uso terapêutico , Ratos
12.
J Ethnopharmacol ; 73(1-2): 199-207, 2000 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-11025157

RESUMO

The enzyme xanthine oxidase catalyses the oxidation of hypoxanthine to xanthine and then to uric acid, which plays a crucial role in gout. A total of 122 traditional Chinese medicinal plants, selected according to the clinical efficacy and prescription frequency for the treatment of gout and other hyperuricemia-related disorders, have been evaluated for the enzyme inhibitory activity. Among the 122 methanol extracts derived from these species, 69 were shown to be inhibitory at 100 microg/ml, with 29 having greater than 50% inhibition. As to the equal amount of water extracts, 40 were disclosed to be active at 100 microg/ml, with 13 possessing more than 50% inhibition. At 50 microg/ml, 58 methanol and 24 water extracts exhibited inhibitory activity, with 15 of the former and two of the latter showing greater than 50% inhibition. The most active was the methanol extract of the twig of Cinnamomum cassia (Lauraceae) (IC(50), 18 microg/ml), which was followed immediately by those of the flower of Chrysanthemum indicum (Asteraceae) (IC(50), 22 microg/ml) and the leaves of Lycopus europaeus (Lamiatae) (IC(50), 26 microg/ml). Among the water extracts, the strongest inhibition of the enzyme was observed with that of the rhizome of Polygonum cuspidatum (Polygonaceae) (IC(50), 38 microg/ml). The IC(50) value of allopurinol used as a positive control was 1.06 microg/ml. The study demonstrated that the effects for these medicinal plants used for the gout treatment were based, at least in part, on the xanthine oxidase inhibitory action.


Assuntos
Inibidores Enzimáticos/uso terapêutico , Gota/tratamento farmacológico , Medicina Tradicional Chinesa , Extratos Vegetais/uso terapêutico , Plantas Medicinais/enzimologia , Xantina Oxidase/antagonistas & inibidores , Inibidores Enzimáticos/isolamento & purificação , Etnobotânica , Humanos , Extratos Vegetais/isolamento & purificação , Plantas Medicinais/química
13.
J Ethnopharmacol ; 73(1-2): 277-81, 2000 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-11025166

RESUMO

Banxia Houpu Decoction, having been used for the treatment of depression-related diseases since ancient times, is a traditional Chinese medicinal empirical formula consisting of Pinellia ternata, Poria cocos, Magnolia officinalis, Perilla frutescens and Zingiber officinale. The effects of the total decoction extract and five fractions therefrom, were evaluated in mice by tail suspension and forced swimming tests. The total 90% ethanol extract of the decoction was shown to possess an antidepressant activity that was close to that of Prozac, an antidepressant agent being applied clinically. Furthermore, the active principles were desmonstrated to be mainly in the aqueous (Bx4) and lipophic (Bx5) parts of the decoction extract while the polyphenol fraction (Bx2) exhibited a moderate action.


Assuntos
Antidepressivos/farmacologia , Medicamentos de Ervas Chinesas/farmacologia , Medicina Tradicional Chinesa , Esforço Físico/efeitos dos fármacos , Extratos Vegetais/farmacologia , Animais , Antidepressivos/isolamento & purificação , Comportamento Animal/efeitos dos fármacos , Medicamentos de Ervas Chinesas/isolamento & purificação , Masculino , Camundongos , Camundongos Endogâmicos ICR , Extratos Vegetais/isolamento & purificação , Natação
14.
Zhongguo Zhong Yao Za Zhi ; 26(6): 388-91, 2001 Jun.
Artigo em Chinês | MEDLINE | ID: mdl-12528506

RESUMO

OBJECTIVE: To investigate the effects of Processing on antioxidation of Radix et Rhizoma Rhei and Rhizoma Polygoni Cuspidati. METHOD: The oxygen free radicals generation system and mouse liver homogenate lipid peroxidation in vitro were used. RESULT: The processed products of Radix et Rhizoma Rhei and Rhizoma Polygoni Cuspidati could scavenge superoxide radical (O2-.) generated through hypoxanthine-oxidase system and (.OH) generated through Fenton action, and inhibit lipid peroxidation induced by hydroxyl radical generation system, respectively. There existed significant differences among the different processed products. CONCLUSION: After Radix et Rhizoma Rhei and Rhizoma Polygoni Cuspidati were processed, their effects became weaker.


Assuntos
Medicamentos de Ervas Chinesas/farmacologia , Sequestradores de Radicais Livres/farmacologia , Polygonum , Rheum , Animais , Temperatura Alta , Radical Hidroxila , Peroxidação de Lipídeos/efeitos dos fármacos , Masculino , Camundongos , Camundongos Endogâmicos ICR , Raízes de Plantas/química , Plantas Medicinais/química , Polygonum/química , Rheum/química , Rizoma/química , Superóxidos , Tecnologia Farmacêutica/métodos
15.
Zhongguo Zhong Yao Za Zhi ; 26(4): 245-8, 2001 Apr.
Artigo em Chinês | MEDLINE | ID: mdl-12525047

RESUMO

OBJECTIVE: To investigate the effects of different processing products of Cortex Phellodendri on scavenging oxygen free radicals and anti-lipid peroxidation. METHOD: The oxygen free radicals generation system and mouse liver homogenate lipid peroxidation in vitro were used. RESULT: The aqueous and 80% alcohol extracts of raw, stir-fried, stir-fried with salt, stir-fried with yellow alcohol products of Cortex Phellodendri could scavenge superoxide radical(O2-.) generated through hypoxanthine-oxidase system and(.OH) generated through Fenton action, and inhibit lipid peroxidation induced by hydroxyl radical generation system, respectively. But the carbonized product has no effect. There are differences among these processed products. CONCLUSION: 80% alcohol extract of stir-fried with yellow alcohol products of Cortex Phellodendri was more intense.


Assuntos
Medicamentos de Ervas Chinesas/farmacologia , Sequestradores de Radicais Livres/farmacologia , Peroxidação de Lipídeos/efeitos dos fármacos , Phellodendron/química , Plantas Medicinais/química , Animais , Temperatura Alta , Camundongos , Casca de Planta/química , Tecnologia Farmacêutica/métodos
16.
Zhongguo Zhong Yao Za Zhi ; 18(11): 692-4, 704, 1993 Nov.
Artigo em Chinês | MEDLINE | ID: mdl-8003235

RESUMO

As a kind of anti-inflammatory protein fractionated and purified from the larva of parasa sinica, CCP (ip) has a significant anti-inflammatory effect on ear odema induced by croton oil in mice. Its ID50 is 1.6mg/kg, but a dose of 2.5mg/kg can also significantly inhibit the rat ankle odema induced by carrageenan and egg white.


Assuntos
Anti-Inflamatórios não Esteroides/uso terapêutico , Edema/tratamento farmacológico , Hormônios de Inseto/uso terapêutico , Materia Medica/uso terapêutico , Mariposas , Animais , Anti-Inflamatórios não Esteroides/isolamento & purificação , Carragenina , Óleo de Cróton , Edema/induzido quimicamente , Feminino , Hormônios de Inseto/isolamento & purificação , Masculino , Materia Medica/química , Camundongos , Camundongos Endogâmicos C57BL , Mariposas/química , Ovalbumina , Ratos , Ratos Sprague-Dawley
17.
Zhongguo Zhong Yao Za Zhi ; 18(9): 535-8, 573-4, 1993 Sep.
Artigo em Chinês | MEDLINE | ID: mdl-8011107

RESUMO

It has been shown that the fatsoluble extract SeE from carbonized Schizonepeta tenuifolia has an obvious hemostatic action. In a given range of dose there is a significant linear correlation between the logarithms of its doses and the reciprocal of the bleeding and coagulating times in mice. Obvious hemostatic action was observed after mice had been administered in ip and po respectively for 0.5h and 1h. The hemostatic time of the former was 6h and the latter 12h. The LD50 of StE in po was 2.652 +/- 0.286 g/kg, while in ip 1.945 4/- 0.207 g/kg.


Assuntos
Medicamentos de Ervas Chinesas/farmacologia , Hemostáticos/farmacologia , Animais , Medicamentos de Ervas Chinesas/toxicidade , Feminino , Hemostáticos/toxicidade , Masculino , Camundongos , Camundongos Endogâmicos ICR , Coelhos , Tempo de Coagulação do Sangue Total
18.
Zhongguo Zhong Yao Za Zhi ; 18(10): 598-600, 638, 1993 Oct.
Artigo em Chinês | MEDLINE | ID: mdl-8003212

RESUMO

It has been shown that StE can significantly shorten PT, TT, KPTT and RT of experimental animals and has an antiheparin function in the body. Meanwhile, it can significantly shorten ELT and strengthen FA. Its hemostatic action is accomplished through promoting coagulation and inhibiting fibrinolysis. 3P test and EG test were negative, it is thus impossible for a large dosage of StE to lead to DIC.


Assuntos
Medicamentos de Ervas Chinesas/farmacologia , Hemostáticos/farmacologia , Animais , Testes de Coagulação Sanguínea , Feminino , Fibrinólise/efeitos dos fármacos , Masculino , Camundongos , Coelhos , Ratos , Ratos Sprague-Dawley , Soroglobulinas/metabolismo
20.
Phytomedicine ; 14(7-8): 523-9, 2007 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-17085027

RESUMO

Depression is related to alterations of the monoamine oxidase (MAO), hypothalamic-pituitary-adrenal (HPA) axis, and oxidative systems, and some antidepressants achieve their therapeutic effects through alteration of following biochemical markers of depression: MAO-A and MAO-B activities, cortisol levels, superoxide dismutase (SOD) activity and malondialdehyde (MDA) levels. The seeds of Psoralea corylifolia, otherwise known as Buguzhi, have long been used for treatments of various symptoms associated with aging in China. Furocoumarins are the most widespread secondary metabolites in this species. The present study was designed to evaluate the potential antidepressant-like activity of total furocoumarins of P. corylifolia (TFPC) in the chronic mild stress (CMS) model of depression. Mice subjected to CMS exhibited a reduction in sucrose intake. Conversely, brain MAO-A and MAO-B activities, plasma cortisol levels, and liver SOD activity and MDA levels were increased following CMS exposures. The time-course for reversal of CMS-induced deficits in sucrose consumption by TFPC was dose-dependent. Thus, the statistically significant effect of the higher dose of TFPC (50 mg/kg body wt.) was observed after 3 days of treatment, while 6 days of treatment were required in the group receiving a lower dose (30 mg/kg body wt.) of TFPC. TFPC reversed these biochemical changes. These results suggest that TFPC may possess potent and rapid antidepressant properties that are mediated via MAO, the HPA axis and oxidative systems and these antidepressant actions could make TFPC a potentially valuable drug for the treatment of depression in the elderly.


Assuntos
Antidepressivos/farmacologia , Depressão/tratamento farmacológico , Modelos Animais de Doenças , Furocumarinas/farmacologia , Psoralea/química , Sementes/química , Estresse Fisiológico/tratamento farmacológico , Animais , Comportamento Alimentar , Furocumarinas/química , Furocumarinas/isolamento & purificação , Hidrocortisona/sangue , Fígado/efeitos dos fármacos , Fígado/enzimologia , Masculino , Camundongos , Camundongos Endogâmicos ICR , Monoaminoxidase/metabolismo , Fitoterapia , Extratos Vegetais/química , Extratos Vegetais/farmacologia , Sacarose , Superóxido Dismutase
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