scholarly journals 135 FH and FGSH prepared from fish skin gelatin using ginger protease alleviates DSS-induced Colitis via Nrf2 pathway

2019 ◽  
Vol 97 (Supplement_3) ◽  
pp. 115-116
Author(s):  
Zhao Deng ◽  
Jian Peng

Abstract Inflammatory bowel disease (IBD), including Crohn’s disease (CD) and ulcerative colitis (UC), is a chronic inflammatory disease affecting the colon, and its incidence is rising worldwide. Hence, it is important to apply new strategies to cope with the IBD. We previously found that hydrolysate fractions (HF) and fish skin gelatin hydrolysate (FSGH), isolated from fish skin gelatin hydrolysate using ginger protease, could exert antioxidant effects in IPEC-J2 cells. Here, we aimed to evaluate the effects of FH and FGSH in a mouse model of dextran sodium sulfate (DSS)-induced colitis. Mouse were treated with 3% DSS in their drinking water for 7 days to induce acute colitis. FH (200 mg/kg) and FGSH (200 mg/kg) was administered for 7 days before and during DSS treatment via oral gavage once per day. Mouse were sacrificed at day 7 after colitis induction. The results showed that FH and FGSH significantly ameliorated the clinical symptoms of DSS-induced mice colitis, such as weight loss, disease activity index (DAI), colon shortening, spleen hypertrophy and histological scores. For MPO activity, an important indicator of neutrophil infiltration and acute inflammation in DSS-induced mouse colitis, FH and FGSH significantly reduced the level of DSS-induced hyperactivated MPO. Treatment with FH and FGSH also significantly inhibited the secretion proinflammatory cytokines TNF-α, IL-8 and IL-12 in DSS-induced mouse colitis. And FH and FGSH administration significantly increased expression of antioxidant enzymes GCLM, GCLC and GPX4 and maintained tight junction in colon tissues. Furthermore, we found that FH and FGSH significantly increased the level of Nrf2 in colon tissues, it indicated that FH and FGSH may alleviated colitis by Nrf2 pathway. Overall, these results suggested that FH and FGSH could be a potential promising candidate for the treatment of IBD.

2020 ◽  
Vol 11 (1) ◽  
pp. 414-423 ◽  
Author(s):  
Zhao Deng ◽  
Chenbin Cui ◽  
Yanan Wang ◽  
Jiangjin Ni ◽  
Liufeng Zheng ◽  
...  

Inflammatory bowel disease (IBD), including Crohn's disease (CD) and ulcerative colitis (UC), is a chronic inflammatory disease affecting the colon, and its incidence is rising worldwide.


2020 ◽  
Vol 2020 ◽  
pp. 1-18 ◽  
Author(s):  
Zhao Deng ◽  
Qi Liu ◽  
Miaomiao Wang ◽  
Hong-Kui Wei ◽  
Jian Peng

Inflammatory bowel disease (IBD), including Crohn’s disease (CD) and ulcerative colitis (UC), is a chronic inflammatory disease affecting the colon, and its incidence is rising worldwide. Nur77, belongs to the NR4A subfamily of nuclear hormone receptors, plays a critical role in controlling the pathology of colitis. The aim of this study is to investigate the protection effect and mechanism of Gly-Pro-Ala (GPA) peptide, isolated from fish skin gelatin hydrolysate, in a mouse model of dextran sulfate sodium- (DSS-) induced colitis and intestinal epithelial cells (IECs) stimulated by lipopolysaccharide (LPS). In vivo, GPA treatment alleviates DSS-induced weight loss, disease activity index (DAI) increase, colon length shortening, and colonic pathological damage. Production of proinflammatory cytokines, ROS, and MDA is significantly decreased by GPA treatment. In vitro, GPA significantly inhibits proinflammatory cytokine production, cytotoxicity, ROS, and MDA in IECs. Furthermore, GPA induces autophagy to suppress inflammation and oxidative stress. GPA promotes Nur77 translocation from the nucleus to mitochondria where it facilitates Nur77 interaction with TRAF6 and p62, leading to the induction of autophagy. In addition, GPA contributed to the maintenance of tight junction architecture in vivo and in vitro. Taken together, GPA, as a Nur77 modulator, could exert anti-inflammatory and antioxidant effects by inducing autophagy in IECs, suggesting that GPA may be promising for the prevention of colitis.


Author(s):  
Yang-Ju Son ◽  
Ji Min Shin ◽  
In Jin Ha ◽  
Saruul Erdenebileg ◽  
Da Seul Jung ◽  
...  

Artemisia gmelinii Web. ex Stechm. (AG), a popular medicinal herb in Asia, has been used as a common food ingredient in Korea and is traditionally known for its anti-inflammatory properties. Therefore, in this study, we aimed to investigate whether AG relieves IBD, a classic chronic inflammatory disease of the gastrointestinal tract. We identified 35 chemical compounds in AG ethanol extract using ultra-high-performance liquid chromatography-quadrupole time-of-flight tandem mass spectrometry. In mice with DSS-induced IBD, AG administration attenuated the disease activity index and the serum and colonic levels of inflammatory cytokines and chemokines. AG treatment decreased nuclear factor-[Formula: see text]B (NF-[Formula: see text]B) signaling, a key mediator of inflammation, in the mouse colons. Additionally, AG extract enhanced immune responses in lymphoid tissues such as spleen and Peyer’s patches. Thus, AG consumption potently ameliorated IBD symptoms and improved immune signaling in lymphoid tissues.


2011 ◽  
Vol 14 (1) ◽  
pp. 165-171 ◽  
Author(s):  
K. Malewska ◽  
A. Rychlik ◽  
R. Nieradka ◽  
M. Kander

Treatment of inflammatory bowel disease (IBD) in dogs and catsThe treatment of inflammatory bowel disease (IBD) possesses numerous difficulties owing to the unclear etiology of the disease. This article overviews the drugs used in the treatment of IBD depending on the intensity of clinical symptoms (Canine Inflammatory Bowel Disease Activity Index and Canine Chronic Enterophaty Clinical Activity Index). Patients demonstrating mild symptoms of the disease are usually placed on an appropriate diet which may be combined with immunomodulative or probiotic treatment. In moderate progression of IBD, 5-aminosalicylic acid (mesalazine or olsalazine) derivatives may be administered. Patients showing severe symptoms of the disease are usually treated with immunosuppressive drugs, antibiotics and elimination diet. Since the immune system plays an important role in the pathogenesis of the disease, the advancements in biological therapy research will contribute to the progress in the treatment of canine and feline IBD in the coming years.


Nutrients ◽  
2020 ◽  
Vol 12 (2) ◽  
pp. 456 ◽  
Author(s):  
Mia Kim ◽  
Kyung-Sook Chung ◽  
Se-Jung Hwang ◽  
Ye Seul Yoon ◽  
Young Pyo Jang ◽  
...  

Inflammatory bowel disease (IBD) is a major risk factor of colorectal cancer. Drugs currently used for IBD exhibit adverse effects including vomiting, nausea, and diarrhea. Naturally derived novel alternative therapies are required to overcome these limitations. In this study, we investigated the protective effects of ethanol extract of Cicer arietinum (CEE) in a dextran sodium sulfate (DSS)-induced mouse model of colitis. CEE markedly improved DSS-induced clinical symptoms and histological status, such as the disease activity index, spleen weight, and colon length. Moreover, CEE-treated mice showed significant recovery of DSS-induced crypt damage and cell death. CEE suppressed myeloperoxidase (MPO) activity and macrophage marker F4/80 mRNA expression in colonic tissue of mice with DSS-induced colitis, indicating neutrophil infiltration and macrophage accumulation, respectively. Although DSS upregulated pro-inflammatory mediators and activated transcription factors, CEE downregulated the mRNA expression of cytokines including interleukin-6, interleukin-1β, and tumor necrosis factor-α, protein expression of cyclooxygenase-2 and inducible nitric oxide synthase, as well as activation of nuclear factor-kappa B (NF-κB) and signal transducer and activator of transcription 3 (STAT3). Hence, our findings reveal that the anti-inflammatory properties of CEE, involving the downregulation of the expression of pro-inflammatory mediators by inactivating NF-κB and STAT3 in DSS-induced colitis mice.


2017 ◽  
Vol 2017 ◽  
pp. 1-4 ◽  
Author(s):  
Youyou Luo ◽  
Jindan Yu ◽  
Jingan Lou ◽  
Youhong Fang ◽  
Jie Chen

Aim. To compare the effectiveness of exclusive enteral nutrition (EEN) and infliximab (IFX) therapy in pediatric Crohn’s disease (CD). Methods. In a prospective study of children initiating EEN or infliximab therapy for CD, we compared clinical outcomes using the pediatric Crohn’s disease activity index (PCDAI), growth improvement, endoscopic mucosal healing, and adverse effects. Data were measured at baseline and after 8 weeks of therapy. Results. We enrolled 26 children with CD; of whom, 13 were treated with infliximab, 13 with EEN. Clinical response (PCDAI) reduction ≥ 15 or final PCDAI ≤ 10 was achieved by 83.3% in the EEN group and 90.9% in the IFX group. Body mass index for age (BMIFA) z-scores were significantly increased in both groups (P<0.05). No significant differences were observed in PCDAI, height for age (HFA), or BMI recovery between two groups. Adverse effects were detected in 30.7% on infliximab and 0% on EEN. Mucosal healing was achieved in 71.4% cases in the EEN group versus 85.7% in the IFX group. Conclusion. EEN provided similar improvements as IFX in clinical symptoms, mucosal healing, and BMI. EEN therapy has less adverse effects when compared with IFX. This trial is registered with the Clinical Registration Number: ChiCTR-OON-17010834.


2017 ◽  
Vol 2017 ◽  
pp. 1-8 ◽  
Author(s):  
Baohai Liu ◽  
Xuehua Piao ◽  
Lianyi Guo ◽  
Guijun Wang ◽  
Weihua Sun ◽  
...  

Ulcerative colitis (UC) is a chronic lifelong inflammatory disorder of the colon. Current medical treatment of UC relies predominantly on the use of traditional drugs, including aminosalicylates, corticosteroids, and immunosuppressants, which failed to effectively control this disease’s progression and produced various side effects. Here, we report a new Chinese medicine intestine formula (CIF) which greatly improved the effect of mesalazine, an aminosalicylate, on UC. In the present study, 60 patients with chronic UC were treated with oral mesalazine alone or in combination with CIF enema. The combination of mesalazine and CIF greatly and significantly improved the clinical symptoms and colon mucosal condition and improved the Mayo Clinic Disease Activity Index and health-related quality of life, when compared to mesalazine alone. In particular, the addition of CIF further decreased serum levels of tumor necrosis factor-alpha and hypersensitivity C-reactive protein but in contrast increased interleukin-4. Thus, the results demonstrate the beneficial role of CIF in UC treatment, which may be mediated by the regulation of inflammation.


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