scholarly journals Enteral nutrition ameliorates the symptoms of Crohn's disease in mice via activating special pro-resolving mediators through innate lymphoid cells

2021 ◽  
pp. 175342592110570
Author(s):  
Di Zhao ◽  
Bo Yang ◽  
Chen Ye ◽  
Shaoyi Zhang ◽  
Xiaoqiong Lv ◽  
...  

Crohn's disease activates the inflammatory reactions to induce intestinal disorders. Enteral nutrition (EN) could exert general immunomodulatory effects. Cecal ligation and perforation (CLP) surgery was utilized to establish Crohn's disease mice models. Survival analysis, hematoxylin-eosin staining, flow cytometry, ELISA, Western blot and liquid chromatography-tandem MS were applied. Baicalein was added to inhibit lipoxygenases. The survival rate was restored and inflammatory injury, exudate neutrophils in peritoneal lavage and serum levels of IL-6 and TNF-α were ameliorated by EN treatment as compared with CLP treatment. EN also increased ILC-3 content, 5/15-LOX level and RvD1-RvD5 in peritoneal lavage. Baicalein reversed all the detected effects of EN except ILC-3 content. EN could activate special pro-resolving mediators (SPMs) through ILCs to mitigate injuries of Crohn's disease.

2015 ◽  
Vol 16 (4) ◽  
pp. 319-326
Author(s):  
Natasa Zdravkovic ◽  
Ivan Jovanovic ◽  
Gordana Radosavljevic ◽  
Nebojsa Zdravkovic ◽  
Slobodanka Mitrovic ◽  
...  

AbstractThe aim of this study was to investigate the expression patterns of p16, p53 and VEGF in affected tissue and serum levels of cytokines TNF-α, IL-6, TGF-β and IL-17 in patients with ulcerative colitis (UC) and fistulating Crohn’s disease (CD). Serum levels of cytokines in patients with ulcerative colitis (n=24) and with Crohn’s disease (n=7) were analysed by ELISA. In colonoscopically obtained biopsies, p16, p53 and vascular endothelial growth factor expression were evaluated by immunohistochemistry.The results of this study clearly show the predominance of pro-inflammatory type 1 and 17 immune response in patients with CD compared to those with UC. We believe that altered p16 and p53 induce enhanced VEGF expression and implicates enhanced production of pro-inflammatory TNF-α and IL-6. TNF-α and IL-6 further facilitate development of type 1/17 immune response.


1995 ◽  
Vol 108 (4) ◽  
pp. 1056-1067 ◽  
Author(s):  
Anne M. Griffiths ◽  
Arne Ohlsson ◽  
Philip M. Sherman ◽  
Lloyd R. Sutherland

2021 ◽  
Vol 27 (Supplement_1) ◽  
pp. S55-S55
Author(s):  
Marcin Sochal ◽  
Piotr Bialasiewicz ◽  
Agata Gabryelska ◽  
Renata Talar-Wojnarowska ◽  
Jakub Fichna ◽  
...  

Abstract Background and aims Serotonin affects intestinal physiology, mood, as well as circadian rhythm. Moreover, serotonin has proinflammatory function. Therefore, the aim of this study was to investigate the role of serotonin in clinical severity of Crohn’s Disease (CD) and its effect on pain and sleep quality. Methods Fifty-nine CD patients (34 in exacerbation and 25 in remission according to the Harvey-Bradshaw Index-HBI) and 25 health control individuals(HC) were recruited. Sleep quality was assessed by the Pittsburgh Sleep Quality Index (PSQI) and subjective severity of pain by the Visual Analog Scale (VAS). Seventeen patients were treated with anti-TNF-α induction therapy for 14 weeks. Results Serotonin level was higher in CD (145.12ng/mL, IQR:98.14–179.25) compared to HC (87.52ng/mL, IQR:70.04–129.39; p=0.002) and in exacerbation of CD (157.66ng/mL, IQR:111.94–197.64) compared to remission (122.33ng/mL, IQR:83.28–163.67; p=0.029). Serotonin level with cut-off point of 92.45 ng/mL is useful for distinguishing participants with CD from HC (sensitivity: 78%, specificity: 60%, positive predictive value: 82%). Positive correlation between serotonin and HBI (r=0.279, p=0.032) and severity of diarrhoea (r=0.260, p=0.047) were found. Serotonin does not correlate with PSQI (r=0.152, p=0.168), but correlates with presence of sleep fragmentation for example by getting up to use the bathroom (joined 5b-5j PSQI questions; r=0.270, p=0.039). Correlations between serotonin and VAS were also obtained (r=0.220, p=0.045). Moreover, serotonin level significantly decreased after anti-TNF-α therapy (192.35ng/mL, IQR:150.36–225.56 vs. 121.11ng/mL, IQR:91.28–188.87; p=0.006). The study was funded by National Science Centre, Poland (#2018/31/N/NZ5/03715). Conclusions Serotonin level correlates with the severity of CD and decreases after anti-TNF-α therapy. It is associated with sleep fragmentation, which may be caused by diarrhea.


2021 ◽  
Vol 94 (4) ◽  
pp. 252-253
Author(s):  
Alicia Isabel Pascual Pérez ◽  
Gemma Pujol Muncunill ◽  
Patricia Domínguez Sánchez ◽  
Sara Feo Ortega ◽  
Javier Martín de Carpi

2010 ◽  
Vol 10 (2) ◽  
pp. 163-175 ◽  
Author(s):  
Nazila Assasi ◽  
Gord Blackhouse ◽  
Feng Xie ◽  
John K Marshall ◽  
E Jan Irvine ◽  
...  

2015 ◽  
Vol 31 (1) ◽  
pp. 1-7 ◽  
Author(s):  
Maki Nakahigashi ◽  
Takayuki Yamamoto ◽  
Rodolfo Sacco ◽  
Hiroyuki Hanai ◽  
Fumio Kobayashi

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