1.Effects of cassia seed,red yeast rice,ginkgo biloba leaf and salvia miltiorrhiza compounds on blood lipid level of rats
Meitong LIU ; Luwei CUI ; Zimin LI ; Yuming HU
Journal of Preventive Medicine 2019;31(2):132-135
Objective :
To learn the effects of cassia seed extract,ginkgo biloba leaf extract,salvia miltiorrhiza extract and red yeast rice compounds on blood lipid level of rats with hyperlipidemia.
Methods :
The model of hyperlipidemia in SD rats was established. The rats in the low,moderate and high dose groups were given 0.267 g/kg body weight,0.533 g/kg body weight and 1.600 g/kg body weight of cassia seed,red yeast rice,ginkgo biloba leaf and salvia miltiorrhiza compounds by gavage for 30 days. A blank control group and a model control group were also set. The levels of serum total cholesterol(TC),triglyceride(TG),high-density lipoprotein cholesterol(HDL-C)and low-density lipoprotein cholesterol(LDL-C)in the five groups were measured before and after the intragastric administration.
Results :
One week after the model was founded,the levels of serum TC,TG and LDL-C in the model control group were higher than those in the blank control group(P<0.05). Before the intragastric administration,there were no significant differences in the levels of serum TC,TG,HDL-C and LDL-C between the model control group and each dosage group(P>0.05). After the intragastric administration,there were no significant differences in the levels of serum HDL-C and LDL-C between the model control group and each dosage group(P>0.05). The levels of serum TC and TG in the high dose group were significantly lower than those in the model control group(P<0.05);There was no significant differences in the levels of serum TC and TG between the moderate dose,low dose group and the model control group(P>0.05).
Conclusion
The compounds of cassia seed extract,red yeast rice,ginkgo biloba extract and salvia miltiorrhiza extract with a dosage of 1.600 g/kg body weight can reduce serum TC and TG levels in rats with hyperlipidemia.
2.Amelioration of low dose enteral nutrition on the intestinal barrier and systemic inflammation for septic shock patients combined with acute gastrointestinal injury
Luwei YE ; Zhigang WANG ; Shifang HUANG ; Jiangjiang GONG ; Longzhu LI ; Xinglong ZHENG ; Haiyan HUANG ; Liyan CUI ; Minjie ZHANG
Parenteral & Enteral Nutrition 2017;24(3):143-145,149
Objective:To analyze the value of low dose enteral nutrition (EN) in treatment of septic shock combined with acute gastrointestinal injury Ⅲ (AGI Ⅲ).Methods:Clinical data of septic shock patients combined with AGI Ⅲ admitted at our hospital were analyzed.Patients were divided into two groups according to the nutrition therapy they received:treatment group (EN,n =41) and control group (no EN,n =46).The mortality and ICU hospital stays were collected.The intestinal barrier,inflammatory cytokines,and oxidative stress were evaluated before and after EN treatment.Results:For patients in the treatment group,the dosages of EN ranged from 200 to 410 kcal/d,with the median dose of 350 kcal/d.No significant differences were found on death rates between the two groups (24.4%vs 32.6%,P =0.398).Patients in the treatment group had shorter ICU hospital stays than those of the control group (11.8 ± 3.7 vs 16.2 ± 5.3,P <0.01).After one week EN treatment,patients in the treatment group had lower levels of CRP,IL-6,TNF-α,diamine oxidase,endotoxin and D-lactate than those of the control group (P < 0.05).Conclusion:For septic shock patients combined with AGI Ⅲ,low dose EN can improve the intestinal barrier function and systemic inflammatory responses.
3.Effect of Mahuang Xixin Fuzitang on Migration of Dendritic Cells in Mice by Regulating Rho/ROCK Signaling Pathway
Shuyue FAN ; Luwei WU ; Tongtong SUN ; Yuying NI ; Jing GAO ; Ying CUI ; Min LIU
Chinese Journal of Experimental Traditional Medical Formulae 2024;30(18):35-42
ObjectiveTo investigate the inhibitory effect of Mahuang Xixin Fuzitang on the migration of dendritic cells (DCs) in mice and its underlying mechanism. MethodMouse bone marrow-derived DCs were isolated and cultured. The morphological changes of the cells at different stages were observed under a microscope, and the CD11c+ proportion was detected by flow cytometry to identify DC purity. Cells were treated with Mahuang Xixin Fuzitang (1, 2, 5, 10, 20, 40, 50, 100 g·L-1) for 24 hours, and the effect of Mahuang Xixin Fuzitang on cell proliferation was assessed using the cell counting kit-8 (CCK-8) assay to determine the appropriate concentrations for treatment. After modeling by lipopolysaccharide (LPS) induction, DCs were divided into a blank group, a model group, and Mahuang Xixin Fuzitang groups (2, 4, 8 g·L-1). The expression of surface molecules CD80, CD86, and major histocompatibility complex-Ⅱ (MHC-Ⅱ) were detected by flow cytometry. Transwell chamber assay was used to observe cell migration. The levels of chemokine C-C-primitive receptor 7 (CCR7) and chemokine C-X-C-primitive receptor 4 (CXCR4) on the cell surface were detected by enzyme-linked immunosorbent assay (ELISA). The expression of filamentous actin (F-actin) in the cell microfilament cytoskeleton was detected by immunofluorescence (IF) staining. Real-time quantitative polymerase chain reaction (Real-time PCR) was employed to determine the mRNA expression levels of Ras homolog family member A (RhoA) and Rho-associated coiled-coil containing protein kinase 1 (ROCK1). Western blot analysis was performed to detect the protein expression of RhoA and ROCK1. ResultCompared with the blank group, the model group exhibited significantly higher expression levels of CD80, CD86, and MHC-Ⅱ (P<0.01), a significantly increased number of cells migrating to the lower chamber (P<0.01), and significantly elevated levels of CCR7 and CXCR4 (P<0.05, P<0.01). Additionally, F-actin expression was significantly increased (P<0.01), and both RhoA and ROCK1 mRNA and protein expression levels were significantly higher (P<0.05, P<0.01). Compared with the model group, treatment with Mahuang Xixin Fuzitang (2, 4, 8 g·L-1) for 24 hours resulted in significantly lower expression levels of CD80, CD86, and MHC-Ⅱ (P<0.01), a significantly reduced number of cells migrating to the lower chamber (P<0.05), and significantly decreased levels of CCR7 and CXCR4 (P<0.05, P<0.01). Furthermore, F-actin expression was significantly reduced (P<0.01), and both RhoA and ROCK1 mRNA and protein expression levels were significantly decreased (P<0.05, P<0.01). ConclusionMahuang Xixin Fuzitang can inhibit the migration of DCs in mice, and its mechanism of action may be related to reducing the activity of the Rho/ROCK signaling pathway, thereby affecting changes in the cell cytoskeleton.