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1.
Artículo en Inglés | MEDLINE | ID: mdl-35035500

RESUMEN

BACKGROUND: Traditional Chinese medicine has been widely used, in conjunction with conventional Western medicine, in clinical practice around the world to treat breast cancer. The study systematically reviewed and summarized the quality of life of breast cancer patients treated with integrated treatment method vs. conventional Western medicine. METHODS: Eight databases including PubMed, EMBASE, Web of Science, the Cochrane Library, Chinese National Knowledge Infrastructure, China Biology Medicine Disc, Chinese Scientific Journal Database, and Wanfang Data knowledge service platform were searched in this study. The retrieval period was set from January 1, 2005, to December 31, 2020. RESULTS: Twenty-two high-quality publications were included in this study. The total sample size was 1689 patients including 844 in the intervention group receiving traditional Chinese medicine combined with conventional Western medicine and 845 patients in the control group receiving conventional Western medicine only. Compared with the single-used conventional Western medicine treatment, an integrated approach to treat breast cancer can increase quality of life measured by rating scales (SMD = 1.29, 95% CI (1.07, 1.52) and P=0.01) and ranking scales (RR = 1.53, 95% CI (1.39 1.68) and P=0.02) and also decrease adverse reactions measured by rating scales (Z = 10.89, P < 0.05; Group 1: I 2 = 9.0%, P=0.258, SMD = 1.03; and Group 2: I 2 = 31.6%, P=0.199, SMD = 1.56). For further analysis, chemotherapy with epirubicin exhibited higher quality of life than the chemotherapy without epirubicin among breast cancer patients [Z = 19.80, P < 0.05; Group 1: I 2 = 62.4%, P=0.070, SMD = 1.61; and Group 2: I 2 = 9.0%, P=0.359, SMD = 1.04]. Despite the heterogeneity, which was due to a portion of relative low-quality literature or other factors, the results were satisfactory. In terms of secondary results, the patients with lower tumor markers (CEA and CA153) had better efficiency in quality of life with a statistically significant difference (SMD = 1.39, 95% CI: 1.10,1.67) for rating scales. In addition, secondary results related to high incidence of gastrointestinal adverse reactions (RR = 1.33, 95% CI (1.20, 1.48)) and the traditional Chinese medicine syndrome (RR = 1.50, 95% CI (1.28, 1.80))showed lower quality of life in the intervention group than the control group for ranking scales. CONCLUSION: Traditional Chinese medicine, when used in conjunction with the conventional Western medicine, could be an effective way in improving the quality of life and alleviating incidence of associated adverse symptoms such as gastrointestinal adverse reactions, value of tumor markers, and the incidence of traditional Chinese medicine syndrome. Further investigation of larger and methodologically sound trials with longer follow-up periods and appropriate comparison groups is needed.

2.
J Ethnopharmacol ; 292: 114669, 2022 Jun 28.
Artículo en Inglés | MEDLINE | ID: mdl-34600079

RESUMEN

ETHNOPHARMACOLOGICAL RELEVANCE: Sugemule-3 decoction (SD-3) is a commonly used prescription in Mongolian medicine which composed of the herbs Baidoukou (the fruit of Amomum compactum Sol. ex Maton), Baijusheng (the fruit of Lactuca sativa L.) and Biba (Piper longum L.). SD-3 has remarkable effect on the cardiovascular diseases, but its pharmacological mechanism has not been elucidated. AIM OF THIS STUDY: To evaluate the cardioprotective effects and the potential mechanisms of the ethanol extracts of SD-3 against isoproterenol (ISO)-induced heart failure (HF) in rats. MATERIAL AND METHODS: The ethanol extracts of SD-3 were prepared and analyzed by LC-ESI-MS/MS. One hundred male Wistar rats were randomly divided into five groups: control, ISO (HF) and different doses of SD-3 (0.4, 0.2, 0.1 g/kg/d) groups. HF model rats were established by intraperitoneal injecting of ISO. The left ventricular function was evaluated by echocardiography. Myocardial injury and fibrosis were examined by hematoxylin-eosin (HE) and Masson staining. Western-blot analysis was performed to determine the protein expression of apoptosis and mitochondrial dynamics in all the groups. Moreover, the structural changes in the mitochondria of cardiomyocytes were also observed by transmission electron microscopy. RESULTS: Fifteen compounds were detected in the ethanol extracts of SD-3, include piperine, piperanine, etc. Rats administered with ISO showed a significant decline in the left ventricular function. The cardiac histopathological changes such as local necrosis, interstitial edema, and cardiac fibrosis were also observed in the ISO group. The treatment with SD-3 significantly inhibited these effects of ISO. ISO was found to increase the protein expression of Bax, cleaved-PARP and cleaved-caspase-3, -7 -9, destroy the balance between mitochondrial fusion and fission, and alter the mitochondrial morphology. The ethanol extracts of SD-3 could rebalance mitochondrial fusion and fission, and ameliorates the morphological abnormalities induced by ISO in mitochondria. CONCLUSION: The current study demonstrated that ethanol extracts of SD-3 improved isoprenaline-induced cardiac hypertrophy and fibrosis through inhibiting cardiomyocyte apoptosis and regulating the mitochondrial dynamics.


Asunto(s)
Insuficiencia Cardíaca , Dinámicas Mitocondriales , Animales , Etanol/química , Fibrosis , Insuficiencia Cardíaca/inducido químicamente , Insuficiencia Cardíaca/tratamiento farmacológico , Insuficiencia Cardíaca/prevención & control , Isoproterenol/toxicidad , Masculino , Miocardio/patología , Ratas , Ratas Wistar , Espectrometría de Masas en Tándem
3.
J Ethnopharmacol ; 273: 114002, 2021 Jun 12.
Artículo en Inglés | MEDLINE | ID: mdl-33705924

RESUMEN

ETHNOPHARMACOLOGICAL RELEVANCE: The traditional Chinese medicine Sanweidoukou decoction (DK-3) was a classical formula for the treatment of nervous system diseases, recorded in the Chinese medical classic Sibu Yidian. AIM OF THE STUDY: The present study is aim to investigate the neuroprotective effects of DK-3 on ß-amyloid (Aß) protein -induced AD-like pathologies and underlying molecular mechanisms both in vitro and in vivo studies. MATERIALS AND METHODS: Hydrolysates of DK-3 were analyzed by LC-ESI-MS/MS. In vitro, MTT was utilized to examine effects of DK-3 on Aß25-35-induced cytotoxicity in PC12 cells. In vivo, male Sprague-Dawley rats were administered with Aß25-35 to induce AD-like pathologies and behavioral evaluations were conducted via Morris water maze (MWM) test. Histopathological changes were observed by Hematoxylin-eosin (HE) straining. Immunohistochemistry (IHC) was used to detect the tau hyperphosphorylation at Thr181 site. The expression levels of tau hyperphosphorylation, inflammation-related cytokines such as COX-2, iNOS, TNF-α, IL-1ß, IL-6, the phosphorylated state of various mitogen-activated protein kinase (MAPK) signaling molecules (p38 MAPK, ERK, and JNK) and activation of nuclear factor κB (NF-κB) in vitro and in vivo were assessed via Western blot. RESULTS: In vitro, DK-3 dose-dependently increased cell viability of PC12 cells induced by Aß25-35. In vivo, DK-3 improved learning and memory abilities of Aß25-35-induced AD-like rats. Moreover, DK-3 reversed hyperphosphorylation of tau and reduced the production of inflammation-related cytokines through significantly inhibited MAPK and NF-κB signaling pathways both in vitro and in vivo studies. CONCLUSION: The present study suggested that the traditional Chinese medicine DK-3 may play a role in preventing and treating AD by reducing the hyperphosphorylation of tau protein and the expressions of inflammation-related cytokines via modulating the MAPK/NF-κB signaling pathways.


Asunto(s)
Péptidos beta-Amiloides/toxicidad , Medicamentos Herbarios Chinos/farmacología , Quinasas de Proteína Quinasa Activadas por Mitógenos/metabolismo , FN-kappa B/metabolismo , Neuronas/efectos de los fármacos , Fragmentos de Péptidos/toxicidad , Animales , Supervivencia Celular/efectos de los fármacos , Cromatografía Liquida , Regulación de la Expresión Génica/efectos de los fármacos , Masculino , Quinasas de Proteína Quinasa Activadas por Mitógenos/genética , FN-kappa B/genética , Células PC12 , Fitoterapia , Distribución Aleatoria , Ratas , Ratas Sprague-Dawley , Transducción de Señal , Espectrometría de Masas en Tándem/métodos
4.
Artículo en Inglés | MEDLINE | ID: mdl-32595729

RESUMEN

The traditional Mongolian medicine (TMM) RuXian-I is an empirical formula specifically used for treating the hyperplasia of mammary gland (HMG) in clinic based on the principles of traditional Mongolian medicine, but the treatment mechanism is not completely clear. In this paper, we elaborated the mechanism of RuXian-I in the treatment of HMG induced by estrogen and progestogen from its toxicity and activity. Firstly, RuXian-I exhibited no toxic effect on HMG rats through no changes of body weight and food intake measurement and no pathologic changes of the organs (heart, liver, spleen, lung, and kidney) detected. Secondly, RuXian-I could decrease the increased nipple height and diameter and remarkably relieve the pathologic changes of HMG rats and also alleviate serum sex hormone levels (estradiol (E2), luteinizing hormone (LH), progesterone (P), and testosterone (T)) of HMG rats. Finally, RuXian-I could obviously inhibit the upregulation level of antiapoptotic protein CRYAB of HMG rats and promote mammary gland cell apoptosis of HMG rats via increases of promoting apoptosis protein caspases-3, 8, and 9 and Bax and tumor suppressor protein p53, decreases of antiapoptosis protein Bcl-2, and release of cytochrome c. These results suggested that RuXian-I has protective and therapeutic effects on HMG rats induced by estrogen and progestogen possibly via promoting apoptotic pathway regulated by CRYAB and is a promising agent for treating HMG.

5.
Nat Prod Res ; 34(2): 225-232, 2020 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-30580619

RESUMEN

One new aryldihydronaphthalene-type lignan (1) together with eight known lignans (2-4, 7-11) as well as two caffeic-acid dimers (5, 6) were isolated from an ethanol extract of the whole plant of Corispermum mongolicum Iljin (Chenopodiaceae). The chemical structures of these compounds were determined from 1D and 2D NMR and HR-ESI-MS spectra, and results were compared with data from the literature. This study is the first demonstration of nine compounds (2 and 4-11) isolated from the Chenopodiaceae family, with one of these (3) from the genus Corispermum. Anti-inflammatory effects of the isolated compounds were evaluated in terms of inhibition of production of nitric oxide, tumour necrosis factor-α, and interleukin-6 in lipopolysaccharide-induced RAW 264.7 cells.


Asunto(s)
Antiinflamatorios/aislamiento & purificación , Chenopodiaceae/química , Lignanos/aislamiento & purificación , Extractos Vegetales/química , Animales , Antiinflamatorios/química , Antiinflamatorios/farmacología , Chenopodiaceae/metabolismo , Interleucina-6/biosíntesis , Lignanos/química , Lignanos/farmacología , Lipopolisacáridos , Ratones , Estructura Molecular , Óxido Nítrico/antagonistas & inhibidores , Óxido Nítrico/biosíntesis , Células RAW 264.7 , Factor de Necrosis Tumoral alfa/biosíntesis , Factor de Necrosis Tumoral alfa/efectos de los fármacos
6.
Artículo en Inglés | MEDLINE | ID: mdl-31015848

RESUMEN

Mongolian medicine RuXian-I is composed of 30 Mongolian herbs, which is a traditional Mongolian recipe for clinical treatment of breast "Qi Su Bu Ri Le Du Sen" disease (hyperplasia of mammary glands, HMG). Based on the previous study, this dissertation further explores the therapeutic mechanism of RuXian-I on estrogen-induced HMG in rats. RuXian-I had no effect on the body weight and food intake of HMG rats and had no toxic effects on the five organs (heart, lung, spleen, and kidney). RuXian-I reduced the diameter and height of nipple, organ index, and pathological changes and alleviated the sex hormone levels oh HMG; RuXian-I reduced the upregulation of TCTP, Mcl-1, and Bcl-xL in breast tissue of mammary gland hyperplasia and increased the downregulation of p53, Bax, caspase-9, and caspase-3 protein. RuXian-I has an effective therapeutic activity on HMG rats, and its possible therapeutic mechanism is closely related to antiapoptosis protein TCTP-regulated apoptosis.

7.
Nat Prod Res ; 33(20): 3021-3024, 2019 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-30580580

RESUMEN

A new flavanone glycoside, (2S)-dihydrooroxylin A 7-O-[ß-D-apiosyl(1→2)]-ß-D-glucoside (1), and four known compounds (2-5) were isolated from Tournefortia sibirica L. The chemical structures of these compounds were determined by 1 D and 2 D NMR and HR-ESI-MS spectra, and results were compared with data from the literature. These five compounds (1-5) were isolated from the family Boraginaceae for the first time. Anti-inflammatory effects of compounds (1-5) were evaluated in terms of inhibition of production of NO, TNF-α, and IL-6 in LPS-induced RAW 264.7 cells.


Asunto(s)
Antiinflamatorios/aislamiento & purificación , Boraginaceae/química , Flavanonas/aislamiento & purificación , Glicósidos/aislamiento & purificación , Animales , Antiinflamatorios/farmacología , Flavonoides/química , Flavonoides/aislamiento & purificación , Glicósidos/química , Interleucina-6/antagonistas & inhibidores , Interleucina-6/biosíntesis , Ratones , Estructura Molecular , Óxido Nítrico/antagonistas & inhibidores , Óxido Nítrico/biosíntesis , Extractos Vegetales/química , Células RAW 264.7 , Análisis Espectral , Factor de Necrosis Tumoral alfa/antagonistas & inhibidores , Factor de Necrosis Tumoral alfa/biosíntesis
8.
Nat Prod Res ; 33(2): 226-232, 2019 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-29468903

RESUMEN

A new benzofuran, methyl (2S,2″S,3'E)-[2-(1″-acetoxypropan-2-yl)-2,3-dihydrobenzofuran-5-yl]acrylate (1), and 13 known compounds (2-14) were isolated from an ethanol extract of Artemisia halodendron Turcz. ex Bess. The chemical structures of these compounds were determined by 1D and 2D NMR (1H-1H COSY, HMBC, HMQC and NOESY) and HR-ESI-MS spectra, and results were compared with data from the literature. The effects of compounds 1-14 were measured on NF-κB activation, with compounds 2 and 3 exhibiting inhibitory activities against TNF-α-induced NF-κB reporter gene expression in HeLa cells from 10 to 100 µM.


Asunto(s)
Artemisia/química , Benzofuranos/aislamiento & purificación , Benzofuranos/farmacología , Etanol , Células HeLa/metabolismo , Humanos , Espectroscopía de Resonancia Magnética , Estructura Molecular , FN-kappa B/efectos de los fármacos , FN-kappa B/metabolismo , Extractos Vegetales/química , Extractos Vegetales/farmacología
9.
Zhongguo Ying Yong Sheng Li Xue Za Zhi ; 34(1): 16-18, 2018 Jan 08.
Artículo en Chino | MEDLINE | ID: mdl-29926652

RESUMEN

OBJECTIVE: To investigate the effects of total flavonids of astragalus(TFA) on arrhythmia, endoplasmic reticulum stress and connexcin in mice with viral myocarditis and to clarify the mechanisms of TFA against viral myocarditis complicated with arrhythmia. METHODS: Thirty-six male Balb/c mice were randomly divided into control group, viral myocarditis group and total flavonoids group (n=12). The mice of viral myocarditis were intraperitonealy injected with 0.1 ml/day 10-950 TCID CVB3 for 3 days. The mice of TFA group were intraperitoneal injected with 0.1 ml/day 10-950 TCID CVB3 for 3 days and treated with 0.1ml, 20 mg/L TFA by tail vein injection. At the end of the experiment, arrhythmia was detected by electrocardiogram, the heart of mice were stained by HE, the expressions of glucose-regulated protein 78(GRP78), endoplasmic reticulum stress signaling pathway factor activating transcription factor 4(ATF4) and connexcin 43(Cx43) were detected by Western blot. RESULTS: The expressions of GRP78 and ATF4 were increased and the expression of Cx43 was decreased in viral myocarditis, while TFA inhibited these effect of viral myocarditis in heart of mice. CONCLUSIONS: The antiarrhythmic effect of TFA may be related to the alleviation of endoplasmic reticulum stress and the increase of Cx43 expression.


Asunto(s)
Arritmias Cardíacas/tratamiento farmacológico , Planta del Astrágalo/química , Infecciones por Coxsackievirus/tratamiento farmacológico , Estrés del Retículo Endoplásmico/efectos de los fármacos , Flavonoides/farmacología , Miocarditis/tratamiento farmacológico , Factor de Transcripción Activador 4/metabolismo , Animales , Conexina 43/metabolismo , Medicamentos Herbarios Chinos/farmacología , Chaperón BiP del Retículo Endoplásmico , Proteínas de Choque Térmico/metabolismo , Masculino , Ratones , Ratones Endogámicos BALB C , Miocarditis/virología , Miocardio
10.
Zhongguo Ying Yong Sheng Li Xue Za Zhi ; 34(2): 159-163, 2018 Feb 08.
Artículo en Chino | MEDLINE | ID: mdl-29926682

RESUMEN

OBJECTIVES: To investigate the effect of Astragalus injection on cardiomyocyte apoptosis, endoplasmic reticulum stress and connexin protein in cardiomyopathy rats induced by adriamycin. METHODS: Thirty-six male Wister rats were randomly divided into control group (n=12), adriamycin(ADR) group (n=12) and Astragalus group (n=12). The normal saline (10 ml/kg body weight) was injected intraperitoneally in control group rats, ADR (2 mg/kg body weight) was injected intraperitoneally in ADR group rats, ADR (10 ml/kg body weight) and Astragalus injection (10 ml/kg body weight) were injected intraperitoneally in rats of astragalus group, one time a week, totle 3 times. By the end of the 7th week, the left ventricular end-diastolic diameter(LVEDD), left ventricular end-systolic diameter (LVESD) and left ventricular ejection fraction (LVEF) were measured by echocardiography. Then the rats in the three groups were sacrificed and the left ventricle section was stained by HE, Masson, uranyl acetate/lead citrate respectively, the cardiomyopathy and ultrastructural changes were observed under light microscope and transmission electron microscope. The apoptosis of rat cardiomyocyte were analyzed by TUNEL. The expression of connexin Cx43 and p-Cx43 was detected by immunohistochemistry. The expression of glucose-regulated protein 78 (Grp78),activating transcription factor 4 (ATF-4) and C/EBP homologous protein (CHOP) were detected by real time PCR. RESULTS: Compared with control group, LVEDD, LVESD increased and LVEF decreased, myocardial fibers were disordered and edematous, infiltrated by lymphocytes, the mitochondria were destroyed and vacuolized, and the number of cardiomyocyte apoptosis was increased(P<0.01) in ADR group. The expression of Grp78, ATF-4, CHOP and p-Cx43 were increased, and the expression of Cx43 was decreased in ADR group. However, compared with ADR group, LVEDD, LVESD decreased and LVEF increased, the cardiomyopathy and ultrastructural changes were significantly improved, the number of cardiomyocyte apoptosis was significantly decreased (P<0. 01); the expression of Grp78, ATF-4, CHOP and p-Cx43 decreased (P<0.01); the expression of Cx43 increased in Astragalus group (P<0.01). CONCLUSIONS: Astragalus injection may effectively improve the myocardial damage induced by adriamycin, its mechanism may be related to the inhibition of endoplasmic reticulum stress (ERS) and the decrease of phosphorylation of CX43 in cardiomyopathy rats induced by adriamycin.


Asunto(s)
Apoptosis , Planta del Astrágalo/química , Cardiomiopatías/tratamiento farmacológico , Medicamentos Herbarios Chinos/farmacología , Estrés del Retículo Endoplásmico/efectos de los fármacos , Miocitos Cardíacos/efectos de los fármacos , Animales , Cardiomiopatías/inducido químicamente , Doxorrubicina/efectos adversos , Masculino , Miocitos Cardíacos/citología , Distribución Aleatoria , Ratas , Ratas Wistar
11.
Pharmacogn Mag ; 13(51): 517-522, 2017.
Artículo en Inglés | MEDLINE | ID: mdl-28839382

RESUMEN

BACKGROUND: Sugemule-3 (SD) is a traditional Chinese medicine with protective effect of myocardium. However, the underlying mechanisms of the effect had not been elucidated. MATERIALS AND METHODS: In the present study, the serum of SD was prepared. A model of ß-adrenergic agonist isoprenaline (ISO)-induced H9c2 cardiomyocytes injury was established in vitro. The changes in cell viability were examined to determine the available concentration of ISO and serum of SD. ELISA, terminal deoxynucleotidyl transferase-mediated dUTP nick end-labeling assay, and flow cytometry were used to detect the effect of serum of SD on oxidative stress and apoptosis. The expression levels of the mitochondria-dependent apoptotic pathway and mitogen-activated protein kinase signalling-related proteins were analyzed. RESULTS: Incubation with different dose of ISO (0.015, 0.01, 0.005, and 0.0025 mol/L) for 24 h caused dose-dependent loss of cell viability and 0.01 mol/L of ISO approximately reduced the cell viability to 50%. Pretreatment with 50 µ mol/L serum of SD effectively decreased the levels of ISO-induced cell toxicity. Serum of SD relived ISO-induced oxidative stress and apoptosis in H9c2 cardiomyocytes. A further mechanism study indicated that serum of SD inhibited the mitochondria-dependent apoptotic pathways and regulated the expression levels of Bcl-2 family. ISO activated ERK and P38, whereas serum of SD inhibited their activation. CONCLUSION: Serum of SD inhibits the ISO-induced activation of the mitochondria-dependent apoptotic pathway, oxidative stress, and ERK, P38 inactivation. Serum of SD is used for the treatment of ISO-induced cardiomyopathy. SUMMARY: The serum of SD pretreatment significantly ameliorated ISO-induced H9c2 cardiomyocytes injuries.The protective effect related with apoptosis and oxidative stressInhibition of MAPK pathway was involed in serum of SD induced cardioprotection.The serum of SD is used for the treatment of ISO-induced cardiomyopathy. Abbreviations used: ELISA: Enzyme-linked Immunosorbent Assay; TUNEL: TdT-mediated dUTP nick end labeling; MTT: 3-(4,5-dimethyl-2-thiazolyl)-2,5-diphenyl-2-H-tetrazolium bromide, DMSO: dimethyl sulfoxide; MDA: Malondialdehyde; SOD: Superoxide Dismutase; GSH-Px: Glutathione peroxidase.

12.
Med Chem ; 6(5): 313-20, 2010 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-20977415

RESUMEN

The present study describes the chemical synthesis and anticonvulsant activity evaluation of a series of 7-alkoxy-triazolo-[3, 4-b]benzo[d]thiazoles. Most compounds exhibited good anticonvulsant activity in the Maximal electroshock (MES) test. And the structure-activity relationships (SAR) were analyzed. Among the compounds studied, 7-octyloxy-triazolo-[3, 4-b]benzo[d]thiazole (5g) was found to be the most potent compound with a median effective dose (ED(50)) value of 8.0 mg/kg and a protective index (PI) value of 15.0, possessing better anticonvulsant activity and higher safety than marketed drugs carbamazepine and phenytoin. The mechanism study of compound 5g showed that it displayed broad spectrum activity in several models, and it is likely to have several mechanisms of action (including inhibiting voltage-gated ion channels and GABAergic activity).


Asunto(s)
Anticonvulsivantes/síntesis química , Anticonvulsivantes/farmacología , Benzotiazoles/síntesis química , Benzotiazoles/farmacología , Convulsiones/tratamiento farmacológico , Triazoles/síntesis química , Triazoles/farmacología , Animales , Anticonvulsivantes/química , Anticonvulsivantes/toxicidad , Benzotiazoles/química , Benzotiazoles/toxicidad , Carbamazepina/farmacología , Evaluación Preclínica de Medicamentos , Electrochoque , Ratones , Actividad Motora/efectos de los fármacos , Fenitoína/farmacología , Convulsiones/inducido químicamente , Relación Estructura-Actividad , Triazoles/química
13.
Eur J Med Chem ; 45(11): 4807-12, 2010 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-20813431

RESUMEN

Starting from phthalic anhydride, several new 6-alkoxy(phenoxy)-[1,2,4]triazolo[3,4-a]phthalazine-3-amine derivatives were synthesized as potent anti-inflammatory agent. The study showed that the compounds 6h (6-(2-chlorophenoxy)-[1,2,4]triazolo[3,4-a]phthalazine-3-amine) and 6s (6-(4-aminophenoxy)-[1,2,4] triazolo[3,4-a]phthalazine-3-amine) exhibited the highest anti-inflammatory activity (81% and 83% inhibition, respectively, at 0.5 h after i.p. administration) which were slightly more potent than the reference drug Ibuprofen (61%). Furthermore, the peak activity of 6h and 6s was observed at the 3 h after p.o. administration, and they exhibited stronger anti-inflammatory activity than Ibuprofen at the dose of 50 mg/kg at the peak time.


Asunto(s)
Antiinflamatorios/síntesis química , Antiinflamatorios/farmacología , Ftalazinas/síntesis química , Ftalazinas/farmacología , Animales , Antiinflamatorios/química , Evaluación Preclínica de Medicamentos , Espectroscopía de Resonancia Magnética , Espectrometría de Masas , Ratones , Ftalazinas/química , Espectrofotometría Infrarroja
14.
Arch Pharm Res ; 33(5): 655-62, 2010 May.
Artículo en Inglés | MEDLINE | ID: mdl-20512461

RESUMEN

Using 6-hydroxy-3,4-dihydro-2(1H)-quinolone as the starting material, a series of 1-formamide-triazolo[4, 3-a]quinoline derivatives (6a-6n) was synthesized, the anticonvulsant effect and neurotoxicity of the compounds was calculated with maximal electroshock test and rotarod tests with intraperitoneally injected in KunMing mice. The results demonstrated that compound 7-(hexyloxy)-4,5-dihydro-[1,2,4] triazolo[4,3-a]quinoline-1-carboxamide (6d) was the most active one and also had the lowest toxicity. In the anti-maximal electroshock potency test, it showed median effective dose (ED(50)) of 30.1 mg/kg, median toxicity dose (TD(50)) of 286 mg/kg, and the protective index of 9.5 which is greater than the reference drug carbamazepine with the protective index value of 6.0.


Asunto(s)
Anticonvulsivantes/síntesis química , Anticonvulsivantes/farmacología , Quinolinas/síntesis química , Quinolinas/farmacología , Animales , Anticonvulsivantes/efectos adversos , Carbamazepina/farmacología , Relación Dosis-Respuesta a Droga , Evaluación Preclínica de Medicamentos , Femenino , Masculino , Ratones , Ratones Endogámicos , Estructura Molecular , Relación Estructura-Actividad Cuantitativa , Quinolinas/efectos adversos , Prueba de Desempeño de Rotación con Aceleración Constante
15.
Chem Pharm Bull (Tokyo) ; 58(3): 326-31, 2010 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-20190436

RESUMEN

A series of 7-alkoxy-2H-1,4-benzothiazin-3(4H)-ones and a new series of 7-alkoxy-4H-[1,2,4]triazolo[4,3-d]benzo[b][1,4]thiazine derivatives were synthesized using 5-methoxybenzo[d]thiazol-2-amine as starting material. The structures of the compounds were elucidated by IR, (1)H-NMR spectroscopic data and microanalyses. The anticonvulsant activity of these compounds was evaluated by maximal electroshock (MES) test and rotarod test following intraperitoneal injection in KunMing mice. Among the synthesized compounds 3a-v, 7-(hexyloxy)-2H-benzo[b][1,4]thiazin-3(4H)-one (3f) could be considered potentially the most useful and safe therapeutic compound. Among the synthesized compounds 4a-u, compound 7-(2-fluorobenzyloxy)-4H-[1,2,4]triazolo[4,3-d]benzo[b][1,4]thiazine (4k) was the most active compound with an ED(50) of 17.0 mg/kg, TD(50) of 243.9 mg/kg and protective index (PI) of 14.3. Its neurotoxicity was lower than all the other synthesized compounds and also markedly lower than that of the reference drug carbamazepine.


Asunto(s)
Anticonvulsivantes/síntesis química , Anticonvulsivantes/farmacología , Actividad Motora/efectos de los fármacos , Convulsiones/tratamiento farmacológico , Tiazinas/síntesis química , Tiazinas/farmacología , Animales , Anticonvulsivantes/química , Evaluación Preclínica de Medicamentos , Inyecciones Intraperitoneales , Ratones , Estructura Molecular , Prueba de Desempeño de Rotación con Aceleración Constante/métodos , Estereoisomerismo , Tiazinas/química
16.
Arch Pharm (Weinheim) ; 342(11): 671-5, 2009 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-19856330

RESUMEN

Several 5-alkoxy-tetrazolo[1,5-a]quinazoline derivatives have been synthesized by reacting 2,4-dichloroquinazoline with various phenols or aliphatic alcohol and then with sodium azide. The structures of these compounds have been confirmed by IR, MS,( 1)H-NMR, and elementary analysis. Anticonvulsant activities were evaluated using the maximal electroshock (MES) test. Most of the synthesized compounds displayed weak anticonvulsant activity at a dose of 300 mg/kg. Antidepressant activities were investigated by forced swimming test. Two compounds, namely 5-(hexyloxy)tetrazolo[1,5-a]quinazoline and 5-(4-methoxyphenoxy)tetrazolo[1,5-a]quinazoline, showed significant antidepressant activity, which decreased the immobility time by 62.2 and 51.7% at 100 mg/kg dose level.


Asunto(s)
Anticonvulsivantes/síntesis química , Antidepresivos/síntesis química , Quinazolinas/síntesis química , Animales , Anticonvulsivantes/farmacología , Antidepresivos/farmacología , Relación Dosis-Respuesta a Droga , Evaluación Preclínica de Medicamentos , Ratones , Estructura Molecular , Quinazolinas/farmacología , Relación Estructura-Actividad
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