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1.
J Ethnopharmacol ; 219: 257-268, 2018 Jun 12.
Artigo em Inglês | MEDLINE | ID: mdl-29559373

RESUMO

ETHNOPHARMACOLOGICAL RELEVANCE: Kansui, the root of Euphorbia kansui S.L.Liou ex S.B.Ho (E.kansui), is a classical traditional Chinese medicine (TCM) with certain toxicity. According to the theory of TCM, kansui fry-baked wtith vinegar (VEK) possesses low toxicity and mild diuretic and purgative efficacy. In clinical practice, it is commonly used for the treatmtablent of ascites and oliguria. The present study aimed to evaluate the toxicity and efficacy of different fractions of VEK and reveal the underlying material basis by employing an animal model of malignant ascites effusion (MAE) in rats. MATERIALS AND METHODSTA: The MAE rats as the model were constructed in SPF male wistar rats by intraperitoneal injection of Walker-256 tumor cells. The MAE rats were used and randomly divided into the control group (normal rats), control groups with different fractions (VEKA, VEKB, VEKC and VEKD), model group (MAE rats), positive control group (model group with furosemide), model groups with different fractions (VEKA, VEKB, VEKC and VEKD). Histopathological observation was used to confirm Walker-256 tumor-bearing organ injuries in rats. For the efficacy evaluation, the ascites and urine volumes, the urinary electrolyte concentrations (Na+, K+ and Cl-) and pH, the ascites levels of pro-inflammatory cytokines (IL-2, IL-6, TNF-α, IFN-γ and VEGF), PRA, the serum levels of Ang II, ALD and ADH, as well as AQP8 protein expression in the gastrointestinal tract were detected. Furthermore, different levels of indicators were measured in the toxicity evaluation of different fractions both on normal and model rats, including serum liver enzymes (AST and ALT), serum oxidative damage parameters (GSH, MDA, LDH and SOD), expressions of inflammatory parameters (NF-κB, ICAM-1 and E-cadherin) and apoptosis signals (caspase-3, -8, -9, Bcl-2 and Bax) in the liver and gastrointestinal tract. RESULTS: Walker-256 tumor-bearing malignant ascites effusion rats showed obvious hepatic and gastrointestinal injuries by histopathological observation. In the efficacy evaluation, model rats treated with VEKB and VEKC showed significant urine increase (VEKB, P < 0.01; VEKC, P < 0.01) and ascites reduction (VEKB, P < 0.01; VEKC, P < 0.01). These two fractions also balanced the concentrations of Na+, K+ and Cl- in urine (VEKB, all P < 0.05; VEKC, all P < 0.05), remarkably decreased urinary pH (VEKB, P < 0.01; VEKC, P < 0.01), and reduced the ascites levels of IL-2, IL-6, TNF-α, IFN-γ and VEGF (VEKB, all P < 0.01; VEKC, all P < 0.01) in the model rats. Moreover, levels of PRA, the serum Ang II, ALD and ADH of model rats were decreased after treated by VEKB and VEKC (VEKB, all P < 0.05; VEKC, all P < 0.05). Meanwhile, the expression of gastrointestinal AQP8 of the model rats was also enhanced after treated by VEKB and VEKC (VEKB, P < 0.01; VEKC, P < 0.01). In the toxicity evaluation, although VEKB and VEKC caused toxic indexes moved to the worse aspects in normal rats, nearly all of these indicators notably improved in the model rats. Additionally, VEKA showed no effect on the indicators, either in the efficacy evaluation or in the toxicity evaluation. And VEKD could significantly improve some indicators (urine volume, concentration of K+ in urine, serum MDA, AI and caspase-9) in MAE rats. CONCLUSIONS: VEKB and VEKC were demonstrated a significant efficacy in treating malignant ascites effusion, which could reduce hepatic and gastrointestinal damage on the model rats but cause the same damage to the normal. These data embody the traditional Chinese medicine application principle: You Gu Wu Yun. And these results will provide reference for the safer and better clinical utilization of kansui.


Assuntos
Ácido Acético/uso terapêutico , Ascite/tratamento farmacológico , Medicamentos de Ervas Chinesas/uso terapêutico , Euphorbia , Raízes de Plantas , Animais , Ascite/metabolismo , Ascite/patologia , Avaliação Pré-Clínica de Medicamentos/métodos , Medicamentos de Ervas Chinesas/isolamento & purificação , Masculino , Ratos , Ratos Wistar , Resultado do Tratamento
2.
Zhongguo Zhong Yao Za Zhi ; 41(17): 3218-3225, 2016 Sep.
Artigo em Chinês | MEDLINE | ID: mdl-28920373

RESUMO

This article summarizes the research progress in recent years on interactions between Chinese medicines and gut microbiota based on the physiological functions of gut microbiota, including imbalance impacts of toxic/irritating Chinese medicines on gut microbiota, prognosis effects of Chinese medicines on gut microbiota imbalance, metabolism effects of gut microbiota on Chinese medicine components, and co-metabolism effects between gut microbiota and host. We would think and prospect the specific biological effects of Chinese medicines, gut microbiota structures and the relations between endogenous metabolites from "gut microbiota and host co-metabolism". All of these aim to investigate biological mechanisms and effective components of Chinese medicines based on gut microbiota and offer a new strategy for promoting safe and effective application of Chinese medicines.


Assuntos
Medicamentos de Ervas Chinesas , Microbioma Gastrointestinal , Humanos , Pesquisa
3.
Zhong Yao Cai ; 37(12): 2189-91, 2014 Dec.
Artigo em Chinês | MEDLINE | ID: mdl-26080499

RESUMO

OBJECTIVE: A rapid identification model of the fresh-cut and sulphur fumigation processed Fritillaria thunbergii bulb slices was developed by near-infrared spectroscopy (NIR) with chemometrics method. METHODS: 186 batches of Fritillaria thunbergii bulb slices were collected from the two main producing areas Ningbo and Pan'an in Zhejiang Province, and the near-infrared spectrums were gathered to establish the qualitative identification model by discriminant analysis. RESULTS: The identification model was developed by choosing the spectrum of 9,881.46-4,119.20 cm(-1) and "MSC + spectrum + Ns" to the original spectral preprocessing, and then was verified by prediction set, with 100% identify accuracy. CONCLUSION: The rapid identification model of the fresh-cut and sulphur fumigation processed Fritillaria thunbergii bulb slices by NIR is feasible and efficient.


Assuntos
Fritillaria/classificação , Fumigação , Enxofre , Análise Discriminante , Raízes de Plantas/classificação , Controle de Qualidade , Espectroscopia de Luz Próxima ao Infravermelho
4.
Zhongguo Zhong Yao Za Zhi ; 39(23): 4603-7, 2014 Dec.
Artigo em Chinês | MEDLINE | ID: mdl-25911809

RESUMO

In order to discriminate the crude and sweated Dipsaci Radix correctly and rapidly, the crude and sweated Dipsaci Radix were scanned by the NIR spectrometer, and an identifying model was developed by near infrared spectroscopy combined with principal component-Mahalanobis distance pattern recognition method. The pretreated spectra data of 129 crude samples and 86 sweated ones were analyzed through principal component analysis (PCA). The identifying model was developed by choosing the spectrum for 9 881.46-4 119.20 cm(-1) and "SNV + spectrum + S-G" to the original spectral preprocessing with 14 principal components, and then was verified by prediction set, identifying with 100% accuracy. The rapid identification model of the crude and sweated Dipsaci Radix by NIR is feasible and efficient, and could be used as an assistant means for identifying the crude and sweated Dipsaci Radix.


Assuntos
Química Farmacêutica/métodos , Dipsacaceae/química , Análise de Componente Principal/métodos , Espectroscopia de Luz Próxima ao Infravermelho/métodos , Raízes de Plantas/química , Controle de Qualidade
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