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Cyclooxygenase 2 in Gastric Carcinoma Is Expressed in Doublecortin- and CaM Kinase-Like-1-Positive Tuft Cells

Mutoh H, Sashikawa , Sakamoto H, Tateno T

BACKGROUND/AIMS: Doublecortin and CaM kinase-like-1 (DCAMKL1) is a marker of stem cells expressed predominantly in the crypt base in the intestine. However, DCAMKL1-positive cells have been shown to be differentiated...
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Cyclooxygenase-2 Expression Is Related to the Epithelial-to-Mesenchymal Transition in Human Colon Cancers

Jang TJ, Jeon KH, Jung KH

PURPOSE: Down-regulation of E-cadherin is a hallmark of the epithelial-to-mesenchymal transition (EMT). EMT progression in cancer cells is associated with the loss of certain epithelial markers and the acquisition of...
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Ethanol extract of Angelica gigas inhibits croton oil-induced inflammation by suppressing the cyclooxygenase - prostaglandin pathway

Shin S, Joo SS, Park D, Jeon JH, Kim TK, Kim JS, Park SK, Hwang BY, Kim YB

The anti-inflammatory effects of an ethanol extract of Angelica gigas (EAG) were investigated in vitro and in vivo using croton oil-induced inflammation models. Croton oil (20 microgram/mL) up-regulated mRNA expression...
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Chemopreventive and metabolic effects of inulin on colon cancer development

Hijova E, Szabadosova V, Stofilova , Hrckova G

Prebiotics modulate microbial composition and ensure a healthy gastrointestinal tract environment that can prevent colon cancer development. These natural dietary compounds are therefore potential chemopreventive agents. Thirty Sprague-Dawley rats (4...
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Leukotriene-related Gene Polymorphisms in Patients with Aspirin-intolerant Urticaria and Aspirin-intolerant Asthma: Differing Contributions of ALOX5 Polymorphism in Korean Population

Kim SH, Choi JH, Holloway J, Suh CH, Nahm DH, Ha EH, Park CS, Park HS

The pathogenesis of aspirin (acetylsalicylic acid, ASA)-intolerant urticaria (AIU) is still poorly understood but it has recently been suggested that it is associated with the overproduction of leukotriene (LT). This...
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AMP kinase/cyclooxygenase-2 pathway regulates proliferation and apoptosis of cancer cells treated with quercetin

Lee YK, Park SY, Kim YM, Lee WS, Park OJ

AMPK (AMP-activated protein kinase) is highly conserved in eukaryotes, where it functions primarily as a sensor of cellular energy status. Recent studies indicate that AMPK activation strongly suppresses cell proliferation...
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beta-irradiation (166Ho patch)-induced skin injury in mini-pigs: effects on NF-kappaB and COX-2 expression in the skin

Kim JS, Rhim KJ, Jang WS, Lee SJ, Son Y, Lee SS, Park S, Lim SM

In the present study, the detrimental effect of beta-emission on pig skin was evaluated. Skin injury was modeled in mini-pigs by exposing the animals to 50 and 100 Gy of...
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Effect of Pertussis Toxin and Herbimycin A on Proteinase-Activated Receptor 2-Mediated Cyclooxygenase 2 Expression in Helicobacter pylori-Infected Gastric Epithelial AGS Cells

Seo JH, Seo JY, Chung HY, Kim H

Helicobacter pylori (H. pylori) is an important risk factor for chronic gastritis, peptic ulcer, and gastric cancer. Proteinase-activated receptor 2 (PAR2), subgroup of G-protein coupled receptor family, is highly expressed...
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Probiotics may Reduce Inflammation by Enhancing Peroxisome Proliferator Activated Receptor gamma Activation in HT-29 Cells

Eun CS, Han DS, Lee SH, Jeon YC, Sohn JH, Kim YS, Lee J

  • KMID: 782835
  • Korean J Gastroenterol.
  • 2007 Mar;49(3):139-146.
BACKGROUND/AIMS: The peroxisome proliferator-activated receptor gamma (PPARgamma) is a nuclear receptor highly expressed in the colon which plays an anti-inflammatory role through the inhibition of nuclear factor-kappaB (NF-kappaB) pathway. Probiotics...
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Endoplasmic reticulum stress (ER-stress) by 2-deoxy-D-glucose (2DG) reduces cyclooxygenase-2 (COX-2) expression and N-glycosylation and induces a loss of COX-2 activity via a Src kinase-dependent pathway in rabbit articular chondrocytes

Yu SM, Kim SJ

Endoplasmic reticulum (ER) stress regulates a wide range of cellular responses including apoptosis, proliferation, inflammation, and differentiation in mammalian cells. In this study, we observed the role of 2-deoxy-D-glucose (2DG)...
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