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- 검색키워드
- 저자 : Wardani Sudjarwo (검색결과 2 건)
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이강파,최난희,Wardani Sudjarwo,안상현,박인식,이상락,홍희옥 한국식품영양과학회 2016 Journal of medicinal food Vol.19 No.2
Gastric ulcer is a common digestive disorder that results in considerable suffering. Hence, this digestive pathology has been the focus of a number of recent studies. Although numerous drugs have been developed to treat gastric ulcers, therapeutic approaches for many of the complications associated with these drugs remain to be identified. For this reason, many natural compounds have been explored as alternatives for these drugs. In this study, we have investigated the effectiveness of Areca catechu leaf ethanol extract (ACE) for treating ethanol-induced gastric ulcers in mice. We performed histological as well as immunohistochemical examinations to explore the therapeutic properties of ACE. We also examined the levels of inflammatory signaling molecules to confirm the anti-inflammatory effects of ACE. The histochemical data demonstrate that ACE can protect the mucosal epithelium as well as the vascular supply in the gastric tract. Furthermore, ACE significantly reduced the expression levels of tumor necrosis factor-alpha (TNF-α), interleukin-6 receptor (IL-6R), inducible NO synthase (iNOS), cyclooxygenase 2 (COX2), and nuclear factor-kappa B (NF-κB). Taken together, these data suggest that ACE administration may have the potential as an alternative treatment for gastric ulcer because of its cytoprotective and anti-inflammatory effects and ability to promote the rejuvenation and revascularization of the damaged gastric epithelium.
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The anti-inflammatory effect of Indonesian Areca catechu leaf extract in vitro and in vivo
Kang Pa Lee,Giftania Wardani Sudjarwo,Ji-Su Kim,Septrianto Dirgantara,Won Jai Maeng,Heeok Hong 한국영양학회 2014 Nutrition Research and Practice Vol.8 No.3
BACKGROUND/OBJECTIVES: Overproduction of nitric oxide (NO) by the inducible nitric oxide synthase (iNOS) enzyme can cause inflammation. Cyclooxygenase-2 (COX-2) is also involved in the inflammatory response through regulation of nuclear factor-kappa B (NF-κB). Areca catechu is one of the known fruit plants of the Palmaceae family. It has been used for a long time as a source of herbal medicine in Indonesia. In this study, we explored the effect of Indonesian Areca catechu leaf ethanol extract (ACE) in lipopolysaccharide (LPS)-induced inflammation and carrageenan-induced paw edema models. Recently, this natural extract has been in the spotlight because of its efficacy and limited or no toxic side effects. However, the mechanism underlying its anti-inflammatory effect remains to be elucidated. MATERIALS/METHODS: We measured NO production by using the Griess reagent, and determined the expression levels of inflammation-related proteins, such as iNOS, COX2, and NF-κB, by western blot. To confirm the effect of ACE in vivo, we used the carrageenan-induced paw edema model. RESULTS: Compared to untreated cells, LPS-stimulated RAW 264.7 cells treated with ACE showed reduced NO generation and reduced iNOS and COX-2 expression. We found that the acute inflammatory response was significantly reduced by ACE in the carrageenan-induced paw edema model. CONCLUSION: Taken together, these results suggest that ACE can inhibit inflammation and modulate NO generation via downregulation of iNOS levels and NF-κB signaling in vitro and in vivo. ACE may have a potential medical benefit as an anti-inflammation agent.
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