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1.
J Ethnopharmacol ; : 112445, 2019 Dec 01.
Artigo em Inglês | MEDLINE | ID: mdl-31801688

RESUMO

ETHNOPHARMACOLOGICAL RELEVANCE: San Wei Gan jiang San (SWGJS) also called Jia Ga Song Tang, is widely used in ancient medicine for liver diseases. THE AIM OF THIS STUDY: To identify the blood components of SWGJS. To determine the hepatoprotective effect and the mechanism of SWGJS by observing its effect on different degrees of liver damage and gene knockdown cells. MATERIALS AND METHODS: SWGJS treated serum was analyzed by UPLC-MS to identify blood components. CCl4-induced chronic liver injury in rats was treated with SWGJS. The viscera index was calculated. Pathological changes of the liver were determined by HE staining and analysis of by following: GSH-Px and MDA in liver homogenate; ALT and AST in serum; mRNA expression of Nrf2, Bach1, and HO-1 by RT-PCR; Nrf2 and Bach1 in the nucleus and cytoplasm; HO-1 total expression by Western blot; silencing Nrf2 and Bach1 in human L-02 cells by siRNA; MDA, GSH-Px, GST, and GR in cell supernatants; and GSH/GSSG within the cell. RESULTS: We found that 6-gingerol was one of the blood components in the serum treated with SWGJS. In CCl4-induced chronic liver injury in rats, SWGJS repaired the liver structure in the early stages of liver damage as evidenced by reduced ALT and AST in the serum, increased GSH-Px activity and decreased MDA levels in the liver over time. SWGJS has excellent antioxidant and hepatoprotective effects and prevents disease progression. The mechanism of SWGJS is related to the dynamics promoting Nrf2 entry to the nucleus and Bach1 exit from the nucleus. In L-02 cells with silenced Nrf2, the antioxidant enzyme system was disordered, and the change in the cellular redox state was not conducive to antioxidative stress. However, in cells with silenced Bach1, the antioxidant enzyme system could be activated to promote cellular antioxidant stress. SWGJS had a combined effect on Nrf2 and Bach1 contributing to antioxidant properties and liver protection. SWGJS increased GSH-Px and HO-1, decreased MDA and increased the ratio of GSH/GSSG by upregulating the expression of Nrf2 to enhance its antioxidant effects. At the same time, SWGJS had a specific impact on decreasing Bach1. Its elevation of GST is due to the overall performance of increasing Nrf2 and decreasing Bach1. This mechanism of action embodies the characteristics of the multitarget impact of traditional medicine and the antioxidation effect of SWGJS. CONCLUSIONS: 6-Gingerol is one of the blood components of SWGJS. SWGJS can regulate antioxidant enzymes, protect against liver damage in different stages, and slow the progression of liver cell damage and liver disease by increasing Nrf2 and reducing Bach1 in the nucleus, dynamically regulating Nrf2/Bach1.

2.
Blood Cells Mol Dis ; 77: 129-136, 2019 07.
Artigo em Inglês | MEDLINE | ID: mdl-31059942

RESUMO

Autophagy is primarily considered as an important survival mechanism for both normal cells and cancer cells in response to metabolic stress or chemotherapy; but the role of autophagy in leukemogenesis is not fully understood. The aim of this study is to explore the role of intrinsic autophagy in the leukemogenesis of B-cell acute lymphoblastic leukemia (B-ALL). In this study, conditional knockout mice Atg7f/f;Ubc-Cre, in which an autophagy-essential gene Atg7 is universally deleted, were used as recipients, B-ALL cell line 697 was used as donor cells to generate leukemia mouse model. Compared to wild-type mice, Atg7 knockout mice were more susceptible to engrafted leukemogenesis, shown by increase in white blood cells, lymphocytes, and platelets, decrease in HSPC number and its colony-forming unit (CFU). The liver and spleen displayed hepatosplenomegaly and inflammatory cell infiltration. Furthermore, second competitive transplantation revealed dysfunction of the HSPC in Atg7-knockout leukemia mice represented by destructive self-renew ability (CFU) and reconstitution ability including decreased B220, Ter 119 cells, and increased Gr-1 cell percentage. In summary, Mice with universal deletion of Atg7 are more inclined to the occurrence of engrafted human leukemia, which is largely attributed to the deterioration of the function of HSPC in autophagy deficient mice.

3.
Wei Sheng Yan Jiu ; 44(4): 586-92, 2015 Jul.
Artigo em Chinês | MEDLINE | ID: mdl-26454956

RESUMO

OBJECTIVE: To evaluate the usefulness and efficiency of a novel dietary method among urban pregnant women. METHODS: Sixty one pregnant women were recruited from the ward and provided with a meal accurately weighed before cooking. The meal was photographed from three different angles before and after eating. The subjects were also interviewed for 24 h dietary recall by the investigators. Food weighting, image quantification and 24 h dietary recall were conducted by investigators from three different groups, and the messages were isolated from each other. Food consumption was analyzed on bases of classification and total summation. Nutrient intake from the meal was calculated for each subject. The data obtained from the dietary recall and the image quantification were compared with the actual values. Correlation and regression analyses were carried out on values between weight method and image quantification as well as dietary recall. RESULTS: Total twenty three kinds of food including rice, vegetables, fish, meats and soy bean curd were included in the experimental meal for the study. Compared with data from 24 h dietary recall (r = 0.413, P < 0.05), food weight estimated by image quantification (r = 0.778, P < 0.05, n = 308) were more correlated with weighed data, and show more concentrated linear distribution. Absolute difference distribution between image quantification and weight method of all food was 77.23 ± 56.02 (P < 0.05, n = 61), which was much small than the difference (172.77 ± 115.18) between 24 h recall and weight method. Values of almost all nutrients, including energy, protein, fat, carbohydrate, vitamin A, vitamin C, calcium, iron and zine calculated based on food weight from image quantification were more close to those of weighed data compared with 24 h dietary recall (P < 0.01). The results found by the Bland Altman analysis showed that the majority of the measurements for nutrient intake, were scattered along the mean difference line and close to the equality line (difference = 0). The plots show fairly good agreement between estimated and actual food consumption. It indicate that the differences (including the outliers) were random and did not exhibit any systematic bias, being consistent over different levels of mean food amount. On the other hand, the questionnaire showed that fifty six pregnant women considered the image quantification was less time-consuming and burdened than 24 h recall. Fifty eight of them would like to use image quantification to know their dietary status. CONCLUSION: The novel method which called instant photography (image quantification) for dietary assessment is more effective than conventional 24 h dietary recall and it also can obtain food intake values close to weighed data.


Assuntos
Inquéritos sobre Dietas , Comportamento Alimentar , Rememoração Mental , Avaliação Nutricional , Fotografação , População Urbana/estatística & dados numéricos , Viés , Peso Corporal , China/epidemiologia , Dieta , Registros de Dieta , Ingestão de Alimentos , Ingestão de Energia , Feminino , Alimentos , Humanos , Gravidez , Gestantes , Análise de Regressão , Inquéritos e Questionários
4.
Wei Sheng Yan Jiu ; 43(4): 562-6, 2014 Jul.
Artigo em Chinês | MEDLINE | ID: mdl-25199282

RESUMO

OBJECTIVE: To evaluate the difference between estimations on dietary iron intake based on the China and US food composition databases. METHODS: Total 368 records of 24-h dietary recall on mid-term pregnant women and lactating rural women were analyzed for their iron intakes with the China Food Composition Table 2002 and the USDA National Nutrient Database for Standard Reference release 25, respectively. The values of dietary iron intake derived from two composition databases were compared statistically. RESULTS: The dietary iron intakes of total 368 dietary records estimated with China and US databases were (24.37 +/- 9.66) mg and (16.20 +/- 9.13) mg respectively (with paired t test, t = 20.081, P < 0.01, correlation coefficient r = 0.657, P < 0.01), with average ratio of 1.69 +/- 0.55 between China and US values. In terms of food classification, the most significant differences were with dairy products, fishes, fruits, meats and cereals, with ratios of (10.66 +/- 2.24), (5.10 +/- 5.51), (3.01 +/- 2.26), (3.01 +/- 7.85) and (2.33 +/- 0.77), respectively. Only iron intake values from tuberous crops and soy products had inverse ratio as (0.83 +/- 0.50) and (0.75 +/- 0.53). CONCLUSION: The averaged dietary iron intake value for total records was very close to the reported national levels when estimated with the China Food Composition Table 2002, but much decreased when estimated with US food composition database with values as only approximately 66% of reported levels.


Assuntos
Ferro na Dieta , Lactação , Estado Nutricional , Gravidez/fisiologia , China , Laticínios , Dieta , Registros de Dieta , Feminino , Frutas , Humanos , Ferro , População Rural , Estados Unidos
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