scholarly journals The Influence of Corn Silk Polysaccharide on Signal Pathway of TGF-β1 in Type 2 Diabetic Mellitus Rat

2015 ◽  
Vol 9 (1) ◽  
pp. 204-208 ◽  
Author(s):  
Xianchun Wen ◽  
Liling Yue

The study performed some experiments and made following conclusions. In the prevention stage, comparing with normal control group, triglycerides, blood sugar (BG), 24-hour urinary protein and cholesterol (CHO) were higher in T2DM group, but weight and urea nitrogen (BUN) was less in that group. 24-hour urinary protein and cholesterol (CHO) were higher in T2DM group than the intervention group. 24-hour urinary protein and BG in the intervention group were also observed to be higher than the normal control group, but BUN was less than the normal control group. In the intervention group, the weight of kidney and the weight of rat were also higher than T2DM group, but CHO and 24-hour urinary protein were less than T2DM group. The expression of TGF-β1 in T2DM group was also observed to be more than the other groups. However, in the treatment stage, serum creatinine (Cr), weight, BG and CHO, TGand 24-hour urinary protein were significantly higher in the DN rats than those in the normal control rats (P>0.05). The expression level of TGF-β1 and triglyceride level in the corn silk dihydroxycorn silk3 treated group were noticeably lower than those in the DN rats.

2020 ◽  
Vol 18 ◽  
pp. 205873922094262
Author(s):  
Yi-Hao Che ◽  
Zhi-Bin Yang ◽  
Han-Chao Zhang ◽  
Xiu-Mei Wu ◽  
Min-Zhe Sun ◽  
...  

Ulcerative colitis (UC) is a chronic inflammatory disease of intestinal tract, and Periplaneta americana has been found to be effective in the treatment for UC. The purpose of the study was to investigate the therapeutic effect of Periplaneta americana extract Ento-A on UC in rats induced by 2,4,6-trinitrobenzene sulfonic acid (TNBS) and to explore its mechanism. The Sprague-Dawley (SD) rats were randomly divided into normal control group; TNBS-treated group; sulfasalazine (SASP) treated group; Ento-A low- (50 mg/kg), medium- (100 mg/kg), and high-dose (200 mg/kg) groups, respectively. The UC model of rats was induced via TNBS. Disease activity index (DAI) was used to evaluate the severity of UC in rats. The macroscopic and microscopic damages of colon were accessed by colon mucosa damage index (CMDI) and histopathological score (HS), respectively. The levels of interleukin-4 (IL-4), interleukin-17 (IL-17), tumor necrosis factor-α (TNF-α), and interferon-γ (IFN-γ) in serum and the contents of myeloperoxidase (MPO), transforming growth factor-β1 (TGF-β1), and epidermal growth factor (EGF) in colonic mucosa were measured by enzyme-linked immunosorbent assay (ELISA). Compared with the normal control group, the TNBS-treated group showed increase in DAI, CMDI, HS, IL-17, TNF-α, IFN-γ as well as MPO and decrease in the levels of IL-4, EGF, and TGF-β1. However, Ento-A-administrated groups reversed the changes in the DAI, CMDI, HS, and the cytokines caused by TNBS. The study indicates that Periplaneta americana extract Ento-A can effectively alleviate the inflammation in TNBS-induced UC of rats, and the mechanism of that may be related to restoring the balance of T helper 1 (Th1)/Th2/Th17/T regulatory (Treg) cytokines.


2011 ◽  
Vol 39 (03) ◽  
pp. 489-502 ◽  
Author(s):  
Cheng Jin ◽  
Pei-Jian Zhang ◽  
Chuan-Qing Bao ◽  
Yuan-Long Gu ◽  
Bing-Hua Xu ◽  
...  

Atractylodes macrocephala polysaccharide (AMP), a traditional Chinese medicine, is thought to have protective effects against liver injury. Therefore, this study was designed to explore the effects of AMP on hepatic ischemia–reperfusion injury (IRI) and elucidate the possible mechanisms. Ninety-six Sprague-Dawley rats were randomly divided into four groups with 24 rats per group: a normal control group, an IRI group, an AMP-treated group (0.4 g/kg/d) and a bifendate-treated group (100 mg/kg). Rats were treated with AMP or bifendate once daily for seven days by gastric gavage. The normal control group and the IRI model group received an equivalent volume of physiological saline. At 1, 6 and 24 h after surgery, the rats were killed and liver tissue samples were obtained to determine interleukin-1 (IL-1) expression by Western blotting and nuclear factor-κB (NF-κB) expression by immunohistochemistry. Liver morphology was assessed by microscopy and transmission electron microscopy. Blood samples were obtained to measure liver function (alanine aminotransferase, aspartate aminotransferase, total bilirubin and direct bilirubin). AMP significantly reduced the elevated expression of markers of liver dysfunction and the hepatic morphologic changes induced by hepatic IRI in rats. AMP also markedly inhibited IRI-induced lipid peroxidation and altered the activities of the antioxidant enzyme superoxide dismutase and malondialdehyde levels. Moreover, pretreatment with AMP suppressed the expression of interleukin-1β and NF-kB in IRI-treated rats. These results suggest that AMP exerts protective and therapeutic effects against hepatic IRI in rats, which might be associated with its antioxidant properties and inhibition of NF-κB activation. More studies are needed to better understand the mechanisms underlying the protective effects of AMP on hepatic IRI.


2021 ◽  
Vol 271 ◽  
pp. 03027
Author(s):  
Wang Tailin ◽  
Wang Zhiwen ◽  
Liu Yi ◽  
Huang Li

To study the therapeutic effect of corn silk polysaccharide (CSP) on NAFLD mice induced by high fat diet. C57BL/6J mice were divided into normal control group (NC), high fat diet (HFD) group, HFD+200 mg/kg CSP group, and HFD+600 mg/kg CSP group. NAFLD mouse model was established by HFD feeding. Blood and liver tissues of each group were collected and biochemical and pathological tests were performed. The energy intake of NAFLD model group was higher than that of normal control group, and the food intake, water intake, and excretion of NAFLD model group were lower than that of normal control group. There was no statistical significance in the food intake, energy intake, water intake, and excretion of CSP group compared with that of NAFLD model group, nor was there any statistical significance between CSP and two doses of CSP. Biochemical tests showed that CSP decreased the levels of alanine aminotransferase, aspartate aminotransferase, triglyceride and total cholesterol in serum of HFDfed mice, and inhibited the expressions of IL-6 and TNF-α in liver tissue. Pathological results showed that CSP improved HFD-induced hepatic steatosis.


Author(s):  
E. Eteng Ofem ◽  
Kenyoh Abam ◽  
Grace Ekpo ◽  
Savour Ufot ◽  
Joe Enobong ◽  
...  

The study was carried out to investigate the anti-diabetic effects of two medicinal plants Cataranthus roseus (C.R) and Nauclea latifolium (N.L) on some biochemical indices of streptozotocin induced diabetic albino wistar rats. Methods: Ethanolic leaf extracts of C.R. and N.L. were given at daily doses of 500 mg/kg body weight in two divided doses each for 14 days. Thirty albino wistar rats were divided into five (5) groups, consisting of 6 rats each viz: Group 1(normal control), Group 2 (diabetic control), Group 3 (insulin treated), Group 4 (received N.L) and Group 5 (received C.R.). Results: The results of the phytochemical screening contain flavonoids, polyphenols, and alkaloids were found to be present in appreciable amount in N.L while saponins and tannins were found in traceable concentration. Fasting blood glucose levels showed significant decrease (P<0.05) in all the test groups compared to diabetic control and closely related to the insulin treated groups. A significant increase (P<0.05) was observed in (TG) and (TC) concentration of all treated groups compared to the diabetic control group. The concentration of HDL was significantly increased while there was also a significant decreased (P<0.05) in VLDL and LDL in the diabetic control group and insulin group when compared to the normal control group, except for C.R treated group that shows a significant decrease compared with the diabetic control group. Enzymes activities were increased in insulin and diabetic groups. A significant reduction (P<0.05) was observed with the treated group of C.R. and N.L compared to the normal control group. Also, observed was a decrease in albumin level in groups treated with the extracts. Marked reduction in total protein level was observed in groups treated with extracts and insulin, compared to the normal control group. Serum concentrations of Na+, K+, Cl- in diabetic control groups showed a significant increase (P<0.05) compared to the normal control group. K+ concentration was observed to be significantly decreased (P<0.05) in all groups treated with extract and insulin compared to the normal control group. Conclusions: The results demonstrated that C. roseus and N. latifolium have anti-diabetic and antihepatotoxic properties and could be potential herbal remedy in treating and managing diabetic conditions.


Author(s):  
L. C. Chuku ◽  
N. C. Chinaka

The influenceof antioxidant supplementation on high fat diet-streptozotocin (HFD-STZ) induced type 2 diabetes mellitus in Wistar albino rats was investigated. Appropriate (RDA) proportions of some antioxidant rich substances which includes; vitamins (A, B3, B6, B12, C and E), minerals (calcium, selenium, chromium, magnesium, potassium and zinc), α-lipoic acid, cinnamon powder, curcumin (Meriva®), cordyceps, resveratrol, quercetin, D-ribose-L-cysteine were pulled together in corn oil and stored at 4°C for use. Serum glutathione (GSH) and malondialdehyde (MDA) levels, as well as activities of antioxidant enzymes: superoxide dismutases (SOD), catalase (CAT), glutathione-s-transferase (GST), glutathione peroxidise (GPx) and glutathione reductase (GR) were measured using standard methods. Data analysis was done with SPSS version 20.0 and significant level was set at P≤0.05. Results of in vitro oxidative stress indices and antioxidant enzyme activity indicate that after 4 weeks of treatment, there was no significant change (p≥0.05) in serum FBS levels of treated groups compared to the normal control group, but there was a significant decrease (p≤0.05) after 8 and 12 weeks of treatment when compared to the diabetic control group. There was no significant difference (p≥0.05) in the activities of antioxidant enzymes when compared to the normal control group, while in the diabetic control there was significant increase (p≤0.05) compared to the other groups. The results after 4, 8 and 12 weeks of treatment showed a significant increase (p≤0.05) in serum GSH level of normal and treated groups compared to diabetic control group, whereas there was a significant decline (p≤0.05) in serum MDA level of treated and normal control groups when compared to diabetic control. The results therefore suggest that the supplement may possess significant (p≤0.05) free radical scavenging potentials which could be beneficial to health.


2021 ◽  
Vol 22 (1) ◽  
Author(s):  
Anja Wollny ◽  
Christin Löffler ◽  
Eva Drewelow ◽  
Attila Altiner ◽  
Christian Helbig ◽  
...  

Abstract Background We investigate whether an educational intervention of GPs increases patient-centeredness and perceived shared decision making in the treatment of patients with poorly controlled type 2 diabetes mellitus? Methods We performed a cluster-randomized controlled trial in German primary care. Patients with type 2 diabetes mellitus defined as HbA1c levels ≥ 8.0% (64 mmol/mol) at the time of recruitment (n = 833) from general practitioners (n = 108) were included. Outcome measures included subjective shared decision making (SDM-Q-9; scale from 0 to 45 (high)) and patient-centeredness (PACIC-D; scale from 1 to 5 (high)) as secondary outcomes. Data collection was performed before intervention (baseline, T0), at 6 months (T1), at 12 months (T2), at 18 months (T3), and at 24 months (T4) after baseline. Results Subjective shared decision making decreased in both groups during the course of the study (intervention group: -3.17 between T0 and T4 (95% CI: -4.66, -1.69; p < 0.0001) control group: -2.80 (95% CI: -4.30, -1.30; p = 0.0003)). There were no significant differences between the two groups (-0.37; 95% CI: -2.20, 1.45; p = 0.6847). The intervention's impact on patient-centeredness was minor. Values increased in both groups, but the increase was not statistically significant, nor was the difference between the groups. Conclusions The intervention did not increase patient perceived subjective shared decision making and patient-centeredness in the intervention group as compared to the control group. Effects in both groups might be partially attributed to the Hawthorne-effect. Future trials should focus on patient-based intervention elements to investigate effects on shared decision making and patient-centeredness. Trial registration The trial was registered on March 10th, 2011 at ISRCTN registry under the reference ISRCTN70713571.


Author(s):  
Xitong Yang ◽  
Pengyu Wang ◽  
Shanquan Yan ◽  
Guangming Wang

AbstractStroke is a sudden cerebrovascular circulatory disorder with high morbidity, disability, mortality, and recurrence rate, but its pathogenesis and key genes are still unclear. In this study, bioinformatics was used to deeply analyze the pathogenesis of stroke and related key genes, so as to study the potential pathogenesis of stroke and provide guidance for clinical treatment. Gene Expression profiles of GSE58294 and GSE16561 were obtained from Gene Expression Omnibus (GEO), the differentially expressed genes (DEGs) were identified between IS and normal control group. The different expression genes (DEGs) between IS and normal control group were screened with the GEO2R online tool. The Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway enrichment analyses of the DEGs were performed. Using the Database for Annotation, Visualization and Integrated Discovery (DAVID) and gene set enrichment analysis (GSEA), the function and pathway enrichment analysis of DEGS were performed. Then, a protein–protein interaction (PPI) network was constructed via the Search Tool for the Retrieval of Interacting Genes (STRING) database. Cytoscape with CytoHubba were used to identify the hub genes. Finally, NetworkAnalyst was used to construct the targeted microRNAs (miRNAs) of the hub genes. A total of 85 DEGs were screened out in this study, including 65 upward genes and 20 downward genes. In addition, 3 KEGG pathways, cytokine − cytokine receptor interaction, hematopoietic cell lineage, B cell receptor signaling pathway, were significantly enriched using a database for labeling, visualization, and synthetic discovery. In combination with the results of the PPI network and CytoHubba, 10 hub genes including CEACAM8, CD19, MMP9, ARG1, CKAP4, CCR7, MGAM, CD79A, CD79B, and CLEC4D were selected. Combined with DEG-miRNAs visualization, 5 miRNAs, including hsa-mir-146a-5p, hsa-mir-7-5p, hsa-mir-335-5p, and hsa-mir-27a- 3p, were predicted as possibly the key miRNAs. Our findings will contribute to identification of potential biomarkers and novel strategies for the treatment of ischemic stroke, and provide a new strategy for clinical therapy.


Author(s):  
K. Wernicke ◽  
J. Grischke ◽  
M. Stiesch ◽  
S. Zeissler ◽  
K. Krüger ◽  
...  

Abstract Objectives The aim was to investigate the effect of physical activity on periodontal health and HbA1c levels in patients with type 2 diabetes mellitus (T2DM) over a period of 6 months. Materials and methods Thirty-seven patients with non-insulin-dependent T2DM were included in the study. The intervention group (n=20) performed physical activity over a period of 6 months. The control group (n=17) did not receive any intervention. Baseline and final examinations included dental parameters and concentrations of glycosylated hemoglobin (HbA1c) and high-sensitivity C-reactive protein (hsCRP). Results Physical activity showed a positive effect on periodontal health. Both the BOP (p= 0.005) and the severity of periodontitis (p= 0.001) were significantly reduced in the intervention group compared to the control group. Furthermore, HbA1c levels were reduced (p= 0.010) significantly in the intervention group while hsCRP levels significantly increased in the control group (p= 0.04). Conclusions Within the limitations of this randomized, controlled trial, physical activity over a period of 6 months is a health-promoting measure for patients with T2DM and improves both periodontal health and HbA1c concentrations.


2017 ◽  
Vol 127 (4) ◽  
pp. 633-644 ◽  
Author(s):  

Abstract Background Postoperative pain and opioid use are associated with postoperative delirium. We designed a single-center, randomized, placebo-controlled, parallel-arm, double-blinded trial to determine whether perioperative administration of gabapentin reduced postoperative delirium after noncardiac surgery. Methods Patients were randomly assigned to receive placebo (N = 347) or gabapentin 900 mg (N = 350) administered preoperatively and for the first 3 postoperative days. The primary outcome was postoperative delirium as measured by the Confusion Assessment Method. Secondary outcomes were postoperative pain, opioid use, and length of hospital stay. Results Data for 697 patients were included, with a mean ± SD age of 72 ± 6 yr. The overall incidence of postoperative delirium in any of the first 3 days was 22.4% (24.0% in the gabapentin and 20.8% in the placebo groups; the difference was 3.20%; 95% CI, 3.22% to 9.72%; P = 0.30). The incidence of delirium did not differ between the two groups when stratified by surgery type, anesthesia type, or preoperative risk status. Gabapentin was shown to be opioid sparing, with lower doses for the intervention group versus the control group. For example, the morphine equivalents for the gabapentin-treated group, median 6.7 mg (25th, 75th quartiles: 1.3, 20.0 mg), versus control group, median 6.7 mg (25th, 75th quartiles: 2.7, 24.8 mg), differed on the first postoperative day (P = 0.04). Conclusions Although postoperative opioid use was reduced, perioperative administration of gabapentin did not result in a reduction of postoperative delirium or hospital length of stay.


2014 ◽  
Vol 1033-1034 ◽  
pp. 220-223
Author(s):  
Xue Mei Han ◽  
Li Bo Wang ◽  
Ni Ni Li ◽  
Song Yan Liu

To examine the effect of GDM on the expression of MT1-MMP and u-PA genes in glioma cells. Glioma cell lines U251 and U87 were cultured in DMEM medium supplemented with 10% fetal bovine serum. RT-PCR was used to identify gene expression level. The level of u-PA mRNA was up-regulated significantly in the HGF group compared with the normal control group (P<0.05). The expression of MT1-MMP and u-PA was significantly lower in the GDM group than in the normal control and HGF groups (P<0.05). The expression of u-PA in the HGF+GDM group was down-regulated significantly compared with the normal control and HGF groups (P<0.05).GDM can inhibit expression of both MT1-MMP and u-PA in glioma cells.


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