scholarly journals Therapeutic effect of yinchenhao decoction on cholelithiasis via mucin from gallbladder-intestine

2021 ◽  
Author(s):  
Weijun Liu ◽  
Jinjin Liu ◽  
Teng Wu ◽  
Donghua Li ◽  
Yunfeng Cui
Keyword(s):  
Therapeutic Effect ◽  
Protective Layer ◽  
Cholesterol Absorption ◽  
Normal Group ◽  
High Cholesterol Diet ◽  
Model Group ◽  
Simulated Intestinal Fluid ◽  
Significant Difference ◽  
Muc2 Expression ◽  
Aspirin Group

Abstract Background: Cholelithiasis, known as gallstone, was a common and frequently occurring disease worldwide. Mucus was a viscoelastic protective layer lining the surface of mucosa and synthesized by specialized epithelial cells. Yinchenhao decoction was a classic prescription, first documented in Treatise on Febrile Disease. It had a definite and significant therapeutic effect on cholelithiasis, used as a complement to surgery. Our study aimed to investigate the pathological mechanism of cholelithiasis and the therapeutic mechanism of yinchenhao decoction via mucin from gallbladder-intestine.Methods: The solubility of cholesterol in fasted state simulated intestinal fluid (FaSSIF) without and with mucin was tested. The experiment of supersaturation stability was designed by solvent-shift method. The animal experiment was performed by cholelithiasis model of high cholesterol diet. The stones were observed and the related lipid was tested by automatic biochemical analyzer. The mucin was detected by PCR and western blot. Statistics was analyzed using χ2-tests and t-tests.Results: There was no significant difference in the solubility of cholesterol between FaSSIF without and with mucin. Tss or AUC significantly increased with addition of mucin to FaSSIF (p<0.05). A significant difference was observed in stone rate between the normal group and the model group (p<0.05). Stone rate in the model group showed a significant difference from the yinchenhao decoction group (aspirin group) (p<0.05). The level of related lipid showed a significant increase between the normal group and the model group (p<0.05), while there was a significant decrease between the model group and the yinchenhao decoction group (aspirin group) (p<0.05). A significant increase in the MUC5AC or MUC2 expression was observed between the normal group and the model group (p<0.01). The yinchenhao decoction group (aspirin group) caused a significant decrease in the MUC5AC or MUC2 expression, compared with the model group (p<0.01).Conclusions: In cholelithiasis, the mucin in gallbladder (MUC5AC) highly expressed, shortened cholesterol supersaturation, and promoted cholesterol crystallization; the mucin in small intestine (MUC2) highly expressed, prolonged cholesterol supersaturation, and promoted cholesterol absorption. The yinchenhao decoction inhibited the expression of mucin from gallbladder-intestine for the treatment of cholelithiasis.

scholarly journals Effect of Warm Acupuncture on “Dinghui Acupoint” and “Heart Acupoint” in Traditional Mongolian Medicine on Behaviors and Hypothalamic Inammatory Cytokines in Rats with Chronic Fatigue Syndrome

2019 ◽  
Vol 2 (2) ◽  
pp. 8
Author(s):  
Shumei Bai ◽  
Ling Shui ◽  
Qin Si ◽  
Yingsong Chen
Keyword(s):  
Chronic Fatigue Syndrome ◽  
Chronic Fatigue ◽  
Normal Group ◽  
Acupuncture Group ◽  
Control Group ◽  
Model Group ◽  
Moxibustion Group ◽  
Fatigue Syndrome ◽  
Significant Difference ◽  
Traditional Mongolian Medicine

Objective: To observe the effects of warm acupuncture on “Dinghui Acupoint” and “Heart Acupoint” in Traditional Mongolian Medicine on behavior and hypothalamic inflammatory cytokines IL-1β, IL-6 and IFN-r in Rats with Chronic Fatigue Syndrome. Methods: SD rats were randomly divided into normal group, model group, warm acupuncture group and moxibustion positive control group. The latter three groups of rats were used to establish a model of rats with chronic fatigue syndrome (CFS) using a combination of physical fatigue and mental fatigue. When establishing the model of warm acupuncture group, “Dinghui Acupoint” and “Heart Acupoint” intervention was carried out; when establishing the model of moxibustion positive control group, “Zusanli Acupoint” intervention was carried out on both sides. Behavioral observations (body weight, exhaustive swimming time, tail suspension experiment, water maze) were performed before and after modeling. The hypothalamic inflammatory cytokines IL-1β, IL-6 and IFN-r were detected by ELISA method after warm acupuncture and moxibustion intervention. Results: After 21 days of modeling, the body weight of the rats in each group was significantly lower than that in the normal group, and there was a significant difference (P<0.01); Compared with the model group, the weight of the rats in the warm acupuncture group increased significantly, and there was a significant difference (P<0.01); Compared with the model group, the exhaustive swimming time of the rats in the warm acupuncture group was significantly prolonged, and there was a significant difference (P<0.01); Compared with the moxibustion group, the exhaustion time of the rats in the warm acupuncture group was relatively prolonged, and there was a significant difference (P<0.05); Compared with the normal group, the tail suspension time of the model group was significantly prolonged, and there was a significant difference (P<0.05); Compared with the model group, there was a significant difference in the duration of the suspension of the warm acupuncture group and the moxibustion group (P<0.01); Compared with the normal group, the total distance of the water maze test was shorter in the model group, and there was a significant difference (P<0.01); Compared with the model group, both the warm acupuncture group and the moxibustion group were prolonged, and there was a significant difference (P<0.05); Compared with the moxibustion group, the distance between the rats in the warm acupuncture group was relatively longer, but there was no significant difference (P>0.05); Compared with the normal group, IL-1β, IL-6 and IFN-r increased significantly in the model group and there was a significant difference (P<0.05); Compared with the model group, IL-1β and IL-6 in the warm acupuncture group was significantly decreased (P<0.05), and the IL-6 in the moxibustion group was significantly different (P<0.05); Compared with the model group, there was no significant difference between the IFN-r group and the moxibustion group (P>0.05); Compared with the moxibustion group, the levels of IL-1β, IL-6 and IFN-r were not significantly different (P>0.05). Conclusion: Warm acupuncture on “Dinghui Acupoint” and “Heart Acupoint” in Traditional Mongolian Medicine has the ability to improve the body’s defense and self-healing ability, improve chronic fatigue syndrome (CFS), and thus play a preventive role. The results of this research indicate that the warm acupuncture group and the moxibustion group have the same effect.

scholarly journals The Mechanism of the Yigutang-Mediated P13K/AKT/GSK-3β Signal Pathway to Regulate Osteogenic Differentiation of Bone Marrow Stromal Stem Cells to Treat Osteoporosis

2021 ◽  
Vol 2021 ◽  
pp. 1-8
Author(s):  
Ning Li ◽  
Yichen Gong
Keyword(s):  
Gene Expression ◽  
Bone Marrow ◽  
Protein Expression ◽  
Bone Tissue ◽  
Normal Group ◽  
Femoral Bone ◽  
Model Group ◽  
Significant Difference ◽  
Gsk 3Β ◽  
The Right

Objectives. To explore the mechanism of Yigutang mediating the P13K/AKT/GSK-3β signaling pathway to regulate the osteogenic differentiation of bone marrow stromal stem cells to treat osteoporosis (OP). Methods. Sixty 12-week-old female SD rats were randomly divided into the normal group, model group, Yigutang group, and estrogen group, with 15 cases in each group. In the model group, Yigutang group, and estrogen group, the ovaries on both sides were removed to construct the model, and the bone mineral density (BMD) of the upper metaphysis of the right femur of the rats in each group was detected. The left femur of each group of rats was removed, and the load-deformation curve of the left femur of each group of rats was calculated. The number of osteoblasts was observed by H&E staining. After extracting the right femurs of rats in each group, real-time fluorescent quantitative PCR and Western blot were used to detect the expression levels of genes and proteins related to the P13K/AKT/GSK-3β signaling pathway. Results. The BMD of the upper metaphysis of the right femur in the Yigutang group and the estrogen group was significantly higher than that of the model group ( P < 0.05 ), while both Yigutang and estrogen groups had no significant difference compared with the normal group ( P > 0.05 ). In addition, there was no significant difference between the Yigutang group and the estrogen group ( P > 0.05 ). The elastic load and maximum load of the Yigutang group and the estrogen group were significantly higher than the model group ( P < 0.05 ), but both were lower than the normal group ( P < 0.05 ). There was no significant difference between the Yigutang group and the estrogen group ( P > 0.05 ). The number of osteoblasts in the Yigutang group and the estrogen group was significantly higher than the model group ( P < 0.05 ), but both were lower than the normal group ( P < 0.05 ). There was no significant difference between the Yigutang group and the estrogen group ( P > 0.05 ). The P13K gene expression in the right femoral bone tissue of rats in the Yigutang group and the estrogen group was significantly higher than that in the model group ( P < 0.05 ), and the AKT gene expression did not change significantly ( P > 0.05 ). The gene expression of GSK-3β was significantly lower than that of the model group ( P < 0.05 ). Compared with the normal group, the gene expression of P13K, AKT, and GSK-3β in the right femur bone tissue of the Yigutang group and the estrogen group did not change significantly ( P > 0.05 ). The protein expression of P13K and P-AKt in the right femoral bone tissue of rats in the Yigutang group and the estrogen group was significantly higher than that of the model group ( P < 0.05 ), and the protein expression of AKT did not change significantly ( P > 0.05 ). The protein expression of GSK-3β was significantly lower than the model group ( P < 0.05 ). Compared with the normal group, the protein expression of P13K, AKT, P-AKt, and GSK-3β in the right femoral bone tissue of the Yigutang group and the estrogen group did not change significantly ( P > 0.05 ). Conclusions. Yigutang can regulate the differentiation of bone marrow stromal stem cells into osteoblasts, which may be achieved by regulating the P13K/AKT/GSK-3β signaling pathway.

scholarly journals Mechanisms of Intravascular Linear Ablation Induced Restenosis in Rabbit Abdominal Aorta

2018 ◽  
Vol 2018 ◽  
pp. 1-11
Author(s):  
Qiang Chen ◽  
Manman Wang ◽  
Shuai Shao ◽  
Hongze Liu ◽  
Xiaodong Xia ◽  
...  
Keyword(s):  
Intimal Hyperplasia ◽  
Coronary Intervention ◽  
Transluminal Angioplasty ◽  
Artery Dissection ◽  
Control Group ◽  
High Cholesterol Diet ◽  
Control Groups ◽  
Vsmc Proliferation ◽  
Significant Difference ◽  
And Control

Objectives. Percutaneous coronary intervention (PCI) is the mainstay treatment for coronary artery disease but complications such as in-stent restenosis and thrombosis remain problematic. Radiofrequency balloon angioplasty (RBA) can improve lumen dimension, fusing intimal tears, and artery dissection but is associated with higher restenosis rate. Methods. After establishing an atherosclerosis model based on endothelial abrasion and high cholesterol diet, forty-five rabbits were randomly divided into three groups: RBA (n=20), percutaneous transluminal angioplasty (PTA) (n=20), and control groups (n=5). The RBA and PTA groups were subdivided according to harvested time posttreatment, respectively (1 hour, 7 days, 14 days, and 28 days). Aorta segments were then isolated for hematoxylin and eosin staining, Masson trichrome staining, immunohistochemistry, and Western blot for TLR-4, NF-κB, MCP-1, and VCAM-1expression. Results. At 28 days, intimal area was significantly lower in the RBA group compared to the PTA and control groups, whilst luminal and medial area were comparable in the RBA and PTA group but higher and lower than the control group, respectively. Expression of TLR-4, NF-κB, MCP-1, and VCAM-1 showed no significant difference between RBA and PTA groups. Conclusions. RBA can depress the intimal hyperplasia and promote dilatation of the artery to greater extents than PTA at 28 days. However, this did not involve TLR-4 signaling pathway, which likely plays a negligible role in mediating restenosis. Reduction of intimal hyperplasia may be due to injury of ablation to the tunica media and inhibition of VSMC proliferation and migration.

Simvastatin Reduces Expression and Activity of Lipoprotein-Associated Phospholipase A2 in the Aorta of Hypercholesterolaemic Atherosclerotic Rabbits

2009 ◽  
Vol 37 (4) ◽  
pp. 1029-1037 ◽  
Author(s):  
Z Qiao ◽  
J Ren ◽  
H Chen
Keyword(s):  
Atherosclerotic Lesion ◽  
Statin Treatment ◽  
Control Group ◽  
High Cholesterol Diet ◽  
Atherosclerotic Plaques ◽  
Cholesterol Diet ◽  
High Cholesterol ◽  
Local Inflammatory Response ◽  
Plaque Instability ◽  
Significant Difference

Lipoprotein-associated phospholipase A2 (Lp-PLA2) contributes to atherosclerotic plaque instability and subsequent sudden coronary death. Statins are associated with decreased stroke risk and may improve stability of atherosclerotic plaques. The present study investigated the effect of simvastatin on expression of Lp-PLA2 levels in atherosclerotic plaques and on Lp-PLA2 activity in atherosclerotic aortas. Rabbits were a fed chow (control group) or a high-cholesterol diet (atherosclerosis group) for 12 weeks. An additional group on the high-cholesterol diet received simvastatin (5 mg/kg per day) for the last 4 weeks (simvastatin group). Lp-PLA2 activity in plasma and atherosclerotic aortas was significantly higher in the atherosclerosis group than in the control group and, consistent with this, abundant Lp-PLA2 protein was detected in plaques in the atherosclerosis group. Simvastatin significantly reduced Lp-PLA2 activity in plasma and aorta tissue, and reduced Lp-PLA2 protein level in atherosclerotic plaques. Whereas there was no significant difference in total atherosclerotic lesion area between simvastatin and atherosclerosis groups, simvastatin significantly reduced macrophage content, lipid retention and the intima/media ratio but increased the content of smooth muscle cells in atherosclerotic lesions. Thus, statin treatment markedly reduced Lp-PLA2 in both plasma and atherosclerotic plaques. This was associated with attenuation of the local inflammatory response and improved plaque stability.

A Study on Bolton Anterior Tooth Size Discrepancies among Different Malocclusion Groups

2013 ◽  
Vol 1 (2) ◽  
pp. 1-4
Author(s):  
AW Ali ◽  
MZ Hossain
Keyword(s):  
Cross Sectional Study ◽  
Normal Group ◽  
Anterior Tooth ◽  
Tooth Size ◽  
Class Iii ◽  
Cross Sectional ◽  
Normal Occlusion ◽  
Significant Difference ◽  
The Mean ◽  
Bangladeshi Population

Aim: To investigate the correlation between anterior tooth size discrepancies among Angle's Class l, ll, lll malocclusions and corresponding normal occlusion, as well as their prevalence in Bangladeshi population. This study would act as a reference for diagnosis, treatment planning and assessment of prognosis in some orthodontic cases. Methods: This cross sectional study was conducted in the Department of Orthodontics & Dentofacial Orthopedics, Dhaka Dental College & Hospital. A total number of 200 subjects were selected in Angle's Class l, ll, lll and corresponding normal group. Each group had 50 subjects with males and females. A chi-square test was performed to statistically compare the prevalence of anterior tooth size discrepancies among Angle's Class l, ll, lll malocclusions and corresponding normal occlusion and two genders. Analysis of variance was used to compare the mean Bolton anterior tooth size ratios as a function of angle classification and gender. Statistical differences were determined at the 95% confidence level (p< 0.05). Results: No significant difference was observed in the mean Bolton anterior ratio between normal group and class-I malocclusion group (p = 0.343). Significant differences were observed between Class-II malocclusion and normal group (p=0.001), and also between Class-III malocclusion and normal group (p = 0.001). Individuals with Angle Class lll and Class ll malocclusions showed significantly greater prevalence of tooth size discrepancy than Class l malocclusion and corresponding normal group. Conclusion: The great diversity and ethnic mix of Bangladeshi population should alert our orthodontist to use Bolton analysis as an important diagnostic tool and become aware of the moderate variations that may be present and treated. It may somehow guide planning of this type of study in future. DOI: http://dx.doi.org/10.3329/bjodfo.v1i2.15982 Ban J Orthod & Dentofac Orthop, April 2011; Vol-1, No.2, 1-4

scholarly journals Effects and Mechanism of Oxymatrine Combined with Compound Yinchen Granules on the Apoptosis of Hepatocytes through the Akt/FoxO3a/Bim Pathway

2022 ◽  
Vol 2022 ◽  
pp. 1-11
Author(s):  
Xian Zhang ◽  
Jiajia Ge ◽  
Xuejuan Zhu ◽  
Haifeng Zhang ◽  
Yuanzi Wang ◽  
...  
Keyword(s):  
Flow Cytometry ◽  
Western Blot ◽  
Liver Failure ◽  
Acute Liver Failure ◽  
Rat Liver ◽  
Caspase 3 ◽  
Normal Group ◽  
Model Group ◽  
Apoptosis Rate ◽  
Liver Tissues

The aim of the present study was to investigate the effects and mechanism of oxymatrine (OMT) combined with compound yinchen granules (CYG) on the apoptosis of hepatocytes through the Akt/FoxO3a/Bim pathway in rats with acute liver failure. The rat model of acute liver failure was established using lipopolysaccharide/D-galactosamine (LPS/D-GalN). The expression of proteins in rat liver tissues was detected by western blot analysis. The mRNA expression of FoxO3a, Bim, Bax, Bcl-2, and caspase-3 in rat liver tissues was detected by RT-qPCR. The apoptosis rate of rat hepatocytes was determined by flow cytometry. Western blots showed that when compared with the normal group, the expression of p-Akt and p-FoxO3a in the model group was decreased ( P < 0.05 ), while the expression of Bim was increased ( P < 0.01 ). Compared with the model group, the expression of p-Akt and p-FoxO3a in the OMT group and the OMT combined with CYG groups was increased ( P < 0.05 or P < 0.01 ), while the expression of Bim was decreased ( P < 0.05 ). The Bax/Bcl-2 ratio and caspase-3 protein expression in the model group were significantly higher than those in the normal group ( P < 0.01 ). The Bax/Bcl-2 ratio and the expression of caspase-3 protein in the OMT group and the OMT combined with CYG groups were significantly lower than those in the model group ( P < 0.01 ). The results of RT-qPCR were consistent with those of western blot. The results of flow cytometry showed that the apoptosis rate of hepatocytes in the OMT group and the OMT combined with CYG groups was significantly lower than that in the model group ( P < 0.05 or P < 0.01 ). We concluded that LPS/D-GalN can induce apoptosis of hepatocytes in rats with acute liver failure through the Akt/FoxO3a/Bim pathway. OMT combined with CYG inhibits apoptosis of hepatocytes in rats with acute liver failure via the Akt/FoxO3a/Bim pathway.

scholarly journals Sufficient therapeutic effect of cryopreserved frozen adipose-derived regenerative cells on burn wounds

2018 ◽  
Author(s):  
Yasuhiko Kaita ◽  
Takehiko Tarui ◽  
Hideaki Yoshino ◽  
Takeaki Matsuda ◽  
Yoshihiro Yamaguchi ◽  
...  
Keyword(s):  
Wound Healing ◽  
Therapeutic Effect ◽  
Healing Process ◽  
Control Group ◽  
Type I ◽  
Burn Wound ◽  
Burn Wounds ◽  
Burn Wound Healing ◽  
Significant Difference ◽  
Regenerative Cells

AbstractThe purpose of this study was to evaluate whether cryopreserved (frozen) adipose-derived regenerative cells (ADRCs) have a therapeutic effect on burn wound healing as well as freshly isolated (fresh) ADRCs.Full thickness burns were created on dorsum of nude mice and burn wound was excised. The wound was covered by artificial dermis with; (i) fresh ADRCs, (ii) frozen ADRCs, and (iii) PBS (control). The assessment for wound healing was performed by morphological, histopathological and immunohistochemical analyses.In vivo analyses exhibited the significant therapeutic effect of frozen ADRCs on burn wound healing up to the similar or higher level of fresh ADRCs. There were significant differences of wound closure, epithelized tissue thickness, and neovascularization between the treatment groups and control group. Although there was no significant difference of therapeutic efficacy between fresh ADRC group and frozen ADRC group, frozen ADRCs improved burn wound healing process in dermal regeneration with increased great type I collagen synthesis compared with fresh ADRCs.These findings indicate that frozen ADRCs allow us to apply not only quickly but also for multiple times, and the cryopreserved ADRCs could therefore be useful for the treatment of burn wounds in clinical settings.

scholarly journals Research on the Effects of the Extract of Polygala fallax Hemsl on Sex Hormones and ?-EP in Perimenopausal Rat Models

2020 ◽  
Vol 4 (3) ◽  
Author(s):  
Siyuan Yang ◽  
Zhiyong Cao ◽  
Jiabao Chen ◽  
Gang Fang
Keyword(s):  
Menstrual Cycle ◽  
Sex Hormones ◽  
Dose Group ◽  
Low Dose ◽  
Normal Group ◽  
Dose Effect ◽  
High Dose Group ◽  
High Dose ◽  
Model Group ◽  
Rat Models

Objective: To study the effects of the ethnic medicine Polygala fallax Hemsl with Guangxi characteristics on the sex hormones and ?-EP in research objective perimenopausal rat models. Methods: 40 female SPF rats were randomly divided into 4 groups, including the normal, model, high-dose and low-dose groups. Rats of three groups except for the normal one were treated with perimenopausal modelling through the method of subcutaneous injection of compound 4-VCD for 15 consecutive days. Rats of the normal and model group were normally fed without any treatment. Rats of the high-dose and low-dose groups were administered by high- and low-dose intragastric administration of the extract of Polygala fallax Hemsl. According to the menstrual cycle of the vaginal smear of the rat, each menstrual cycle is a course of treatment and 6 consecutive courses of treatment would be given. The indexes of serum sex hormones (E2, FSH, LH) and ?-EP of rats in each group were observed after treatment. Results: After the treatment of 6 cycles, for the levels of ?-EP and E2, the model group was lowest (P<0.05), the normal group was highest (P<0.05); and the high-dose group was higher than the low-dose group; For the levels of FSH and LH, the normal group was lowest (P<0.05), the model group was highest (P<0.05), and the high-dose group was lower than the low-dose group. Conclusion: Guangxi characteristic national medicine Polygala fallax Hemsl can effectively improve the levels of serum sex hormones and ?-EP in perimenopausal rat models and relieve the related symptoms with a certain dose-effect relationship.

scholarly journals Increased NPC1L1 and serum cholesterol in a chronic rejection rat

2011 ◽  
Vol 34 (3) ◽  
pp. 172 ◽  
Author(s):  
Yanfei Zhu ◽  
Jing Zhou
Keyword(s):  
Serum Cholesterol ◽  
Chronic Rejection ◽  
Interstitial Fibrosis ◽  
Intestinal Transplantation ◽  
Serum Levels ◽  
Cholesterol Absorption ◽  
Rt Pcr ◽  
Inflammatory Infiltration ◽  
Significant Difference ◽  
Group 2

Purpose: To measure serum cholesterol and triglyceride levels and NPC1L1 mRNA and protein as an index of cholesterol absorption during the development of chronic rejection (CR) in a rat model of intestinal transplantation. Methods: Rats were randomly divided into two groups: Group 1 (n=20) underwent syngenic Lewis-to-Lewis transplantation and Group 2 (n=20) underwent allogenic F344-to-Lewis transplantation as well as treatment with FK506. Blood samples and intestinal tissue were procured on the 190th day after operation. Histological changes were analyzed and the semiquantitative scores of histological parameters were compared. The serum levels of cholesterol and triglyceride were determined. The expression of Niemann-Pick C1 Like 1(NPC1L1) mRNA and protein were analyzed by Reverse Transcriptase Polymerase Chain Reaction (RT-PCR) and immunohistochemistry, respectively. Results: All the animals survived for the 190 days. The appearance and histology of isografts were almost normal whereas the allografts displayed thickened bowel wall and mesenteric fibrosis, concentric intimal thickening and interstitial fibrosis and inflammatory infiltration. The histology scores displayed a significant difference between the allografts and isografts (P < 0.001). No differences were observed for triglycerides for the two groups. The serum cholesterol levels increased significantly in the allogenic group in comparison with the syngenic group (P=0.034), while no difference was observed for triglyceride levels between groups. RT-PCR showed that the expression of NPC1L1 of allografts increased significantly (P=0.004). Immunohistochemistry confirmed RT-PCR findings. Conclusions: Neointima formation and mesenteric fibrosis were the dominant pathological features. The increased expression of NPC1L1 might contribute to hypercholesterolemia, which may be involved in the pathogenesis of transplant arteriosclerosis.

Therapeutic Effect of Glycyrrhizin Arginine Salt on Rat Cholestatic Cirrhosis and its Mechanism

2018 ◽  
Vol 46 (05) ◽  
pp. 1111-1127 ◽  
Author(s):  
Huan Zhang ◽  
Yajun Lin ◽  
Yongzhan Zhen ◽  
Gang Hu ◽  
Xu Meng ◽  
...  
Keyword(s):  
Matrix Metalloproteinases ◽  
Therapeutic Effect ◽  
Group Treatment ◽  
Transforming Growth Factor ◽  
Smooth Muscle Actin ◽  
Water Model ◽  
Control Group ◽  
High Dose ◽  
Model Group ◽  
Duct Ligation

To investigate the therapeutic effect of glycyrrhizin arginine salt on rat cholestatic cirrhosis, we subjected male Sprague Dawley rats to common bile duct ligation for 14 days and treated them with distilled water (model group), arginine, or a low or high dose of glycyrrhizin arginine salt by gavage. A sham-operated group was used as a control group. Treatment with glycyrrhizin arginine salt substantially improved animal growth rates, reduced the ratio of liver weight to body weight and decreased total bilirubin, aspartate aminotransferase, 8-isoprostane and malondialdehyde compared with the values measured in the model group. The progress of liver fibrosis, as detected by hematoxylin and eosin and Masson’s trichrome staining, was slower in the glycyrrhizin arginine salt groups than in the model group or the arginine group. Reductions of bile salt pool size, hepatic hydroxyproline content and fibrosis score were also seen in the glycyrrhizin arginine salt groups compared with the model group. Furthermore, glycyrrhizin arginine salt significantly reduced the expression of transforming growth factor [Formula: see text]1 (TGF-[Formula: see text]1), [Formula: see text]-smooth muscle actin, tumor necrosis factor-[Formula: see text] and matrix metalloproteinases 2 and 9. Glycyrrhizin arginine salt also inhibited the expression of [Formula: see text]-SMA and matrix metalloproteinases 2 and 9 in response to TGF-[Formula: see text]1 in LX-2 cells and primary rat hepatic stellate cells and mitigated the cytotoxicity induced by rat bile in HepG2 cells and primary rat hepatocytes.

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