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Total 217 results found since Jan 2013.

Costunolide induces lung adenocarcinoma cell line A549 cells apoptosis through ROS (reactive oxygen species)-mediated endoplasmic reticulum stress.
Abstract Costunolide is an active sesquiterpene lactone derived from many herbal medicines. It has a broad spectrum of bioactivities, including anti-inflammatory and potential anti-tumor effects. The aims of the present study were to evaluate the inhibitory effects of costunolide on A549 cell growth and to explore the underlying molecular mechanisms. Annexin V-FITC/PI flow cytometry analysis revealed that costunolide induced apoptosis. To study the mechanism, we found that costunolide exposure activated the unfolded protein response (UPR) signaling pathways, as shown by the up-regulation of GRP78 and IRE1α and th...
Source: Cell Biology International - November 26, 2015 Category: Cytology Authors: Wang Z, Zhao X, Gong X Tags: Cell Biol Int Source Type: research

Esculentoside A Attenuates Allergic Airway Inflammation via Activation of the Nrf-2 Pathway
Conclusions: This is the first study to illustrate that EsA acts as a novel Nrf-2 activator, which modulates the oxidative stress pathway to improve lung injury and ameliorate the development of airway inflammation.Int Arch Allergy Immunol 2015;167:280-290
Source: International Archives of Allergy and Immunology - October 24, 2015 Category: Allergy & Immunology Source Type: research

Geniposide alleviates inflammation by suppressing MeCP2 in mice with carbon tetrachloride-induced acute liver injury and LPS-treated THP-1 cells.
In this study, GP significantly attenuated inflammation in acute liver injury (ALI) mice model and in lipopolysaccharide (LPS)-induced THP-1 cells. It was demonstrated that GP obviously decreased the expression of Methyl-CpG binding protein 2 (MeCP2) in vivo and in vitro. Knockdown of MeCP2 with siRNA suppressed the expressions of IL-6 and TNF-α, while over-expression of MeCP2 had a proinflammatory effect on the expression of IL-6 and TNF-α in LPS-induced THP-1 cells. Mechanistically, it was indicated that GP had anti-inflammatory effects at least in part, through suppressing MeCP2. Interestingly, GP could attenuate expr...
Source: International Immunopharmacology - September 11, 2015 Category: Allergy & Immunology Authors: Ma TT, Li XF, Li WX, Yang Y, Huang C, Meng XM, Zhang L, Li J Tags: Int Immunopharmacol Source Type: research

7‐Methoxy‐(9H‐β‐Carbolin‐1‐il)‐(E)‐1‐Propenoic Acid, a β‐Carboline Alkaloid From Eurycoma longifolia, Exhibits Anti‐Inflammatory Effects by Activating the Nrf2/Heme Oxygenase‐1 Pathway
ABSTRACT Eurycoma longifolia is an herbal medicinal plant popularly used in Southeast Asian countries. In the present study, we show that 7‐methoxy‐(9H‐β‐carbolin‐1‐il)‐(E)‐1‐propenoic acid (7‐MCPA), a β‐carboline alkaloid isolated from E. longifolia, exerted anti‐inflammatory effects by activating the nuclear factor‐E2‐related factor 2 (Nrf2)/heme oxygenase‐1 (HO‐1) pathway. 7‐MCPA inhibited lipopolysaccharide (LPS)‐induced production of nitric oxide (NO), prostaglandin E2 (PGE2), and interleukin‐6 (IL‐6) in RAW264.7 cells and rescued C57BL/6 mice from LPS‐induced lethality in v...
Source: Journal of Cellular Biochemistry - September 3, 2015 Category: Biochemistry Authors: Nguyen Hai Dang, Young‐Yeon Choo, Nguyen Tien Dat, Nguyen Hoai Nam, Chau Van Minh, Jeong‐Hyung Lee Tags: Article Source Type: research

7‐Methoxy‐(9H‐β‐Carbolin‐1‐Il)‐(E)‐2‐Propenoic Acid, a β‐Carboline Alkaloid from Eurycoma Longifolia, Exhibits Anti‐Inflammatory Effects by Activating the Nrf2/Heme Oxygenase‐1 Pathway
This article is protected by copyright. All rights reserved
Source: Journal of Cellular Biochemistry - August 21, 2015 Category: Biochemistry Authors: Nguyen Hai Dang, Young‐Yeon Choo, Nguyen Tien Dat, Nguyen Hoai Nam, Chau Van Minh, Jeong‐Hyung Lee Tags: Article Source Type: research

Icaritin protects against oxidative stress-induced injury in cardiac H9c2 cells via Akt/Nrf2/HO-1 and calcium signalling pathways
Publication date: October 2015 Source:Journal of Functional Foods, Volume 18, Part A Author(s): Si Wan Lei, Guozhen Cui, George Pak Heng Leung, Sharon Chui Wah Luk, Maggie Pui Man Hoi, Liang Wang, Gail B. Mahady, Simon Ming Yuen Lee Icaritin, a prenylflavonoid isolated from Herbal Epimedii, is well known for its osteoplastic and anti-tumour activities. Here, we examined the cardioprotective actions of icaritin on cardiac H9c2 cells under oxidative stress conditions induced by treatment with tert-butylhydroperoxide (t-BHP). Icaritin at a concentration range between 1 and 4 µM effectively increased cell viabilit...
Source: Journal of Functional Foods - July 30, 2015 Category: Nutrition Source Type: research

Zyflamend, a polyherbal mixture, inhibits lipogenesis and mTORC1 signalling via activation of AMPK
The objective in this study was to determine if the antiproliferative effects are mediated, in part, through the activation of AMPK signalling and inhibition of its downstream targets, lipogenesis and mTORC1 complex. By increasing the phosphorylation of AMPK in CWR22Rv1 and PC3 prostate cancer cell lines, Zyflamend decreased de novo lipid biosynthesis by decreasing the activity of acetyl-CoA carboxylase and the expressions of fatty acid synthase and SREBP-1c, with a concomitant up regulation of fatty acid oxidation. In addition, via AMPK, Zyflamend inhibited the activity of mTORC1 complex by directly phosphorylating raptor...
Source: Journal of Functional Foods - July 25, 2015 Category: Nutrition Source Type: research

Salidroside improves endothelial function and alleviates atherosclerosis by activating a mitochondria-related AMPK/PI3K/Akt/eNOS pathway.
This study was to investigate the molecular mechanism of antiatherogenic effects of SAL. Given the importance of endothelial nitric oxide synthase (eNOS) in atherosclerosis, we sought to elucidate whether SAL could stimulate eNOS activation and also to explore its upstream signaling pathway. Six-week old apoE(-/-) male mice were fed a high-fat diet for 8weeks and then were administered with SAL for another 8weeks. SAL significantly improved endothelial function associated with increasing eNOS activation, thus reduced the atherosclerotic lesion area. SAL increased eNOS-Ser1177 phosphorylation and decreased eNOS-Thr495 phosp...
Source: Vascular Pharmacology - July 15, 2015 Category: Drugs & Pharmacology Authors: Xing SS, Yang XY, Zheng T, Li WJ, Wu D, Chi JY, Bian F, Bai XL, Wu GJ, Zhang YZ, Zhang CT, Zhang YH, Li YS, Jin S Tags: Vascul Pharmacol Source Type: research

Protocatechuic Acid from Alpinia oxyphylla Induces Schwann Cell Migration via ERK1/2, JNK and p38 Activation.
This study investigated the role of PCA in promoting neural regeneration and the underlying molecular mechanisms. Nerve regeneration is a complex physiological response that takes place after injury. Schwann cells play a crucial role in the endogenous repair of peripheral nerves due to their ability to proliferate and migrate. The role of PCA in Schwann cell migration was determined by assessing the induced migration potential of RSC96 Schwann cells. PCA induced changes in the expression of proteins of three MAPK pathways, as determined using Western blot analysis. In order to determine the roles of MAPK (ERK1/2, JNK, and ...
Source: The American Journal of Chinese Medicine - June 28, 2015 Category: Complementary Medicine Authors: Ju DT, Kuo WW, Ho TJ, Paul CR, Kuo CH, Viswanadha VP, Lin CC, Chen YS, Chang YM, Huang CY Tags: Am J Chin Med Source Type: research

Neuroprotection of Sanhua Decoction against Focal Cerebral Ischemia/Reperfusion Injury in Rats through a Mechanism Targeting Aquaporin 4.
In conclusion, SHD exerted neuroprotection against focal cerebral I/R injury in rats mainly through a mechanism targeting AQP4. PMID: 26089944 [PubMed]
Source: Evidence-based Complementary and Alternative Medicine - June 21, 2015 Category: Complementary Medicine Tags: Evid Based Complement Alternat Med Source Type: research

Ginsenoside Rg3 suppresses FUT4 expression through inhibiting NF-κB/p65 signaling pathway to promote melanoma cell death.
In conclusion, Rg3 induces tumor cell apoptosis correlated with its inhibitory effect on NF-κB signaling pathway-mediated FUT4 expression. Results suggest Rg3 might be a novel therapy agent for melanoma treatment. PMID: 26094873 [PubMed - as supplied by publisher]
Source: International Journal of Oncology - June 18, 2015 Category: Cancer & Oncology Authors: Shan X, Tian LL, Zhang YM, Wang XQ, Yan Q, Liu JW Tags: Int J Oncol Source Type: research

Berberine Sensitizes Human Ovarian Cancer Cells to Cisplatin Through miR-93/PTEN/Akt Signaling Pathway
Conclusion: The results suggested that berberine modulated the sensitivity of cisplatin through miR-93/PTEN/AKT signaling pathway in the ovarian cancer cells.Cell Physiol Biochem 2015;36:956-965
Source: Cellular Physiology and Biochemistry - June 16, 2015 Category: Cytology Source Type: research

NBM-T-BMX-OS01, an Osthole Derivative, Sensitizes Human Lung Cancer A549 Cells to Cisplatin through AMPK-Dependent Inhibition of ERK and Akt Pathway
Conclusion: Taken together, this study provides that BMX might modulate cisplatin resistance through AMPK-ERK and AMPK-Akt pathways. These results also support the role of BMX as a potential drug candidate for use in combination with cisplatin in the treatment of human lung cancer.Cell Physiol Biochem 2015;36:893-906
Source: Cellular Physiology and Biochemistry - June 9, 2015 Category: Cytology Source Type: research

Ursolic acid protects hepatocytes against lipotoxicity through activating autophagy via an AMPK pathway
Publication date: August 2015 Source:Journal of Functional Foods, Volume 17 Author(s): Fanyu Meng , Hua Ning , Zongxiang Sun , Fangfang Huang , Yanchuan Li , Xia Chu , Huimin Lu , Changhao Sun , Songtao Li Ursolic acid is a naturally occurring pentacyclic triterpenoid in many plants, such as medicinal herbs and food, and was previously found to be an effective phytochemical that protected against high-fat diet-induced hepatic steatosis and liver injury. However, the molecular mechanisms are not fully determined. The present study examined the protective role of ursolic acid against saturated fatty acid-induced lipotoxici...
Source: Journal of Functional Foods - June 7, 2015 Category: Nutrition Source Type: research

Tanshinones suppress AURKA through up-regulation of miR-32 expression in non-small cell lung cancer.
Authors: Ma ZL, Zhang BJ, Wang DT, Li X, Wei JL, Zhao BT, Jin Y, Li YL, Jin YX Abstract Tanshinone is the liposoluble constituent of Salia miltiorrhiza, a root used in traditional herbal medicine which is known to possess certain health benefits. Although it is known that tanshinones, including tanshinone I (T1), tanshinone IIA (T2A), and cryptotanshinone (CT), can inhibit the growth of lung cancer cells in vitro, the mechanism under which they act is still unclear. AURKA, an oncogene, encodes a serine-threonine kinase which regulates mitotic processes in mammalian cells. Here, we reported that tanshinones mediate ...
Source: Oncotarget - June 5, 2015 Category: Cancer & Oncology Tags: Oncotarget Source Type: research