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2.
BMC Complement Altern Med ; 16(1): 510, 2016 Dec 07.
Artigo em Inglês | MEDLINE | ID: mdl-27927194

RESUMO

BACKGROUND: Natural products use for arthritis treatment is gaining importance in the medical worldt. Various studies reports medical importance of Melastoma malabathricum Linn. (MM) (Melastomataceae), also known as "putki," has a broad range of health benefits, for its free radical scavenging constituents. The current investigation scrutinizes the antioxidant and anti-inflammatory effect of MM against adjuvant-induced arthritis in experimental rats. METHODS: High-performance thin layer chromatography (HPTLC) was used for estimation of phytochemical-constituents present in the MM extract. Protective effect of MM extract in Wistar rats was estimated using CFA-induced model. The rats were divided into different groups with six rats in each group. All animals received oral administration of MM and indomethacin for 28 days. The body weight and arthritic score were scrutinized at regular intervals. At the end of experimental protocol, the rats were sacrificed, and blood samples were used for antioxidant, hematological parameters, pro-inflammatory and inflammatory mediator, respectively. Histopathological observation was used to evaluate the protective effect of MM extract. RESULT & DISCUSSION: Current study confirmed the preventive effect of MM against adjuvant-induced paw edema, paw redness and arthritic progression. MM significantly (P < 0.001) modulated the oxidative stress parameters as well as hematological parameter induced by CFA. The result also altered the distorted level of proinflammatory mediators and inflammatory mediator, which further reinforce the implication of MM in CFA induced arthritis. Histological analyses of joints of rats showed a reduction in the synovial hyperplasia and mononuclear infiltration in the MM treated group which provides evidence for the antiarthritic effect of MM. CONCLUSION: From above parameters our study states that the MM is capable of restraining the alteration produced via adjuvant-induced arthritis in aminals. The repressing effect of MM could be attributed, at least in part, to antioxidant, hematological and anti-inflammatory effect. Figure Caption: Melastoma Malabathricum Linn Attenuates Complete Freund's Adjuvant-Induced Chronic Inflammation in Wistar rats by Inflammation Response.


Assuntos
Artrite/tratamento farmacológico , Inflamação/tratamento farmacológico , Melastomataceae , Fitoterapia , Extratos Vegetais/uso terapêutico , Animais , Antioxidantes/metabolismo , Artrite/sangue , Artrite/induzido quimicamente , Artrite/patologia , Cartilagem Articular/patologia , Avaliação Pré-Clínica de Medicamentos , Feminino , Adjuvante de Freund , Inflamação/sangue , Inflamação/induzido quimicamente , Masculino , Simulação de Acoplamento Molecular , Extratos Vegetais/química , Extratos Vegetais/toxicidade , Quercetina/análise , Distribuição Aleatória , Ratos Wistar
3.
Inflammopharmacology ; 24(5): 233-251, 2016 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-27628241

RESUMO

Melastoma malabathricum Linn (MM) has high valued for its commercial significance. Indian market (northeast) has great demand for the plants, which extended, its use as a traditional home remedy due to its anti-inflammatory effects. In this study, we scrutinize the therapeutic and protective effect of MM against diethylnitrosamine (DEN) and ferric nitrilotriacetate (Fe-NTA)-induced renal carcinogenesis, renal hyperproliferation, and oxidative stress in rats. Liquid chromatography mass spectroscopy (LC-MS) was used for identification of phytoconstituents. Administration of DEN confirmed the initiation the renal carcinogenesis via enhancing the expansion of tumor incidence. Intraperitoneally, administration of Fe-NTA boost the antioxidant enzymes (phase I), viz., superoxide dismutase (SOD), catalase (CAT), glutathione reductase (GR), glutathione peroxidase (GPx) and phase II, viz., quinone reductase (QR) and glutathione-S-transferase (GST). It also increased the content of renal lipid peroxidation (LPO), hydrogen peroxidase (H2O2) with decrease content in glutathione content (GSH). It also increased the renal biochemical and non-biochemical parameter. It also confirmed the augment the level of thymidine [3H] incorporation into renal DNA, ornithine decarboxylase (ODC) activity and increased the generation of proinflammatory (TNF-α, IL-6 and IL-ß) and inflammatory mediator (PGE2). We also analyzed the macroscopic and histologic of renal tissue. In addition, the effect of phytoconstituent of MM extract was evaluated in silico and free radical scavenging activity against the DPPH and ABTS free radicals. LC-MS confirmed the presence of quercetin >gallic acid in MM extract. Renal carcinogenesis rats treated with MM (100, 250, and 500 mg/kg) confirmed the significantly (P < 0.001) protective effect via reduction the antioxidant (phase I and phase II) enzymes, biochemical parameter and restore the proinflammatory and inflammatory mediator at dose dependent manner. MM altered the ODC and thymidine activity in renal DNA. The chemoprotective effect of MM was confirmed via decreased the renal tumor incidence, which was confirmed by the macroscopic and histopathological observation. Consequently, our result suggests that MM is a potent chemoprotective agent and suppresses DEN+ Fe-NTA-induced renal carcinogenesis, inflammatory reaction, and oxidative stress injury in Wister rats.


Assuntos
Biomarcadores Tumorais/metabolismo , Neoplasias Renais/tratamento farmacológico , Neoplasias Renais/metabolismo , Melastomataceae , Estresse Oxidativo/efeitos dos fármacos , Extratos Vegetais/uso terapêutico , Animais , Antineoplásicos Fitogênicos/isolamento & purificação , Antineoplásicos Fitogênicos/farmacologia , Antineoplásicos Fitogênicos/uso terapêutico , Biomarcadores Tumorais/antagonistas & inibidores , Compostos Férricos/toxicidade , Inflamação/tratamento farmacológico , Inflamação/metabolismo , Mediadores da Inflamação/antagonistas & inibidores , Mediadores da Inflamação/metabolismo , Neoplasias Renais/induzido quimicamente , Masculino , Ácido Nitrilotriacético/análogos & derivados , Ácido Nitrilotriacético/toxicidade , Estresse Oxidativo/fisiologia , Extratos Vegetais/isolamento & purificação , Extratos Vegetais/farmacologia , Distribuição Aleatória , Ratos , Ratos Wistar , Resultado do Tratamento , Carga Tumoral/efeitos dos fármacos , Carga Tumoral/fisiologia
4.
Br J Pharmacol ; 172(17): 4228-37, 2015 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-26040571

RESUMO

Breast cancer (BC) is the second most common cause of cancer deaths. Triple-negative breast cancer (TNBC) does not show immunohistochemical expression of oestrogen receptors, progesterone receptors or HER2. At present, no suitable treatment option is available for patients with TNBC. This dearth of effective conventional therapies for the treatment of advanced stage breast cancer has provoked the development of novel strategies for the management of patients with TNBC. This review presents recent information associated with different therapeutic options for the treatment of TNBC focusing on promising targets such as the Notch signalling, Wnt/ß-catenin and Hedgehog pathways, in addition to EGFR, PARP1, mTOR, TGF-ß and angiogenesis inhibitors.


Assuntos
Antineoplásicos/administração & dosagem , Sistemas de Liberação de Medicamentos/tendências , Terapia de Alvo Molecular/tendências , Neoplasias de Mama Triplo Negativas/tratamento farmacológico , Animais , Antineoplásicos/metabolismo , Sistemas de Liberação de Medicamentos/métodos , Feminino , Proteínas Hedgehog/metabolismo , Humanos , Terapia de Alvo Molecular/métodos , Receptor ErbB-2/metabolismo , Receptores de Estrogênio/metabolismo , Receptores Notch/metabolismo , Transdução de Sinais/efeitos dos fármacos , Transdução de Sinais/fisiologia , Neoplasias de Mama Triplo Negativas/metabolismo
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