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Suppression of Autophagy and Activation of Glycogen Synthase Kinase 3beta Facilitate the Aggregate Formation of Tau

Kim SI, Lee WK, Kang SS, Lee SY, Jeong MJ, Lee HJ, Kim SS, Johnson GV, Chun W

Neurofibrillary tangle (NFT) is a characteristic hallmark of Alzheimer's disease. GSK3beta has been reported to play a major role in the NFT formation of tau. Dysfunction of autophagy might facilitate...
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Increased Glycogen Synthase Kinase-3beta mRNA Level in the Hippocampus of Patients with Major Depression: A Study Using the Stanley Neuropathology Consortium Integrative Database

Oh DH, Park YC, Kim SH

  • KMID: 2315889
  • Psychiatry Investig.
  • 2010 Sep;7(3):202-207.
OBJECTIVE: Glycogen synthase kinase-3beta (GSK-3beta) has become recognized as a broadly influential enzyme affecting diverse range of biological functions, including gene expression, cellular architecture, and apoptosis. The results of previous...
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Glycogen Synthase Kinase 3 Inactivation Induces Cell Senescence through Sterol Regulatory Element Binding Protein 1-Mediated Lipogenesis in Chang Cells

Kim YM, Song I, Seo YH, Yoon G

BACKGROUND: Enhanced lipogenesis plays a critical role in cell senescence via induction of expression of the mature form of sterol regulatory element binding protein 1 (SREBP1), which contributes to an...
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The Role of Akt-1/PKBalpha on Insulin Action in 3T3-L1 Adipocyte

Lee JM, Son HS, Kwon HS, Kwack SK, Ko SH, Chang SA, Yoon KH, Cha BY, Lee KW, Son HY, Kang SK, Sharma P

  • KMID: 2177818
  • J Korean Diabetes Assoc.
  • 2002 Aug;26(4):274-285.
BACKGROUNDS: Akt/PKB as a serine/threonine kinase is stimulated by insulin and other growth factors. And insulin stimulates glucose uptake by promoting the translocation of glucose transporter 4 (GLUT4) to the...
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Potential involvement of glycogen synthase kinase (GSK)-3β in a rat model of multiple sclerosis: evidenced by lithium treatment

Ahn M, Kim J, Park C, Cho J, Jee Y, Jung K, Moon C, Shin T

Glycogen synthase kinase (GSK)-3β has been known as a pro-inflammatory molecule in neuroinflammation. The involvement of GSK-3β remains unsolved in acute monophasic rat experimental autoimmune encephalomyelitis (EAE). The aim of...
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The Regulation of ERK, GSK3beta and AKT after Acute Ethanol Exposure and Withdrawal in SH-SY5Y Human Neuroblastoma Cell-line

Roh J, Cui FJ, Kang UG

  • KMID: 2341725
  • J Korean Neuropsychiatr Assoc.
  • 2010 Mar;49(2):241-247.
OBJECTIVES: This study aimed to demonstrate the activities and phosphorylation changes induced by acute ethanol treatment and withdrawal conditions in the intracellular signal transduction molecules [such as extracellular signal-regulated kinase...
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Phosphorylation of glycogen synthase kinase-3beta at serine-9 by phospholipase Cgamma1 through protein kinase C in rat 3Y1 fibroblasts

Shin SY, Yoon SC, Kim YH, Kim YS, Lee YH

  • KMID: 1121098
  • Exp Mol Med.
  • 2002 Dec;34(6):444-450.
Phospholipase Cgamma1 (PLCgamma1) plays an important role in controlling cellular proliferation and differentiation. PLCgamma1 is overexpressed in some tumors, and its overexpression induces solid tumors in nude mice. However,...
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Insulin-Like Growth Factor 1 Actions in Developing Brain and the Interaction with Wnt Pathway

Lee SY

Insulin like growth factor (IGF)-1 signaling through type 1 IGF receptor (IGF1R) is essential to the normal growth and development of the central nervous system. IGF-1 stimulates proliferation of neural...
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GSK3beta Inhibitor Peptide Protects Mice from LPS-induced Endotoxin Shock

Ko R, Jang HD, Lee SY

BACKGROUND: Glycogen synthase kinase 3beta (GSK3beta) is a ubiquitous serine/threonine kinase that is regulated by serine phosphorylation at 9. Recent studies have reported the beneficial effects of a number of...
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Ferulic acid regulates the AKT/GSK-3beta/CRMP-2 signaling pathway in a middle cerebral artery occlusion animal model

Gim SA, Sung JH, Shah FA, Kim MO, Koh PO

Ferulic acid, a component of the plants Angelica sinensis (Oliv.) Diels and Ligusticum chuanxiong Hort, exerts a neuroprotective effect by regulating various signaling pathways. This study showed that ferulic acid...
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Regulatory B Subunits of Protein Phosphatase 2A Are Involved in Site-specific Regulation of Tau Protein Phosphorylation

Yu UY, Yoo BC, Ahn JH

Overexpression of amyloid precursor protein with the Swedish mutation causes abnormal hyperphosphorylation of the microtubule-associated protein tau. Hyperphosphorylated isoforms of tau are major components of neurofibrillary tangles, which are histopathological...
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Melatonin Potentiates the Neuroprotective Properties of Resveratrol Against Beta-Amyloid-Induced Neurodegeneration by Modulating AMP-Activated Protein Kinase Pathways

Kwon KJ, Kim HJ, Shin CY, Han SH

BACKGROUND AND PURPOSE: Recent studies have demonstrated that resveratrol (RSV) reduces the incidence of age-related macular degeneration, Alzheimer's disease (AD), and stroke, while melatonin (MEL) supplementation reduces the progression of...
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Cardioprotective signaling cascade of A2 adenosine receptor agonist 5'-N-ethylcarboxaminidoadenosine against myocardial reperfusion injury

Lee YC, Jang YH, Kim CJ, Kim JM

BACKGROUND: This experiments investigated the signaling cascade responsible for anti-infarct effect by an A2 adenosine receptor (AR) agonist 5'-N-Ethylcarboxaminidoadenosine (NECA). METHODS: Langendorff perfused isolated rat hearts were subjected to 30 minutes...
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Ischemic Postconditioning Inhibits Mitochondrial Permeability Transition Pore via Opioid Receptor Activation in Intact Rat Heart

Lee YC, Jang YH, Kim JM, Kim AR, Lee SR, Kim YN, Hong JH

BACKGROUND: Ischemic postconditioning (Post-C), brief cycles of myocardial ischemia and reperfusion during the early phase of reperfusion, is considered as a novel adjunct strategy to protect myocardium.However, the exact mechanism...
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Amyloid-beta oligomers regulate the properties of human neural stem cells through GSK-3beta signaling

Lee IS, Jung K, Kim IS, Park KI

  • KMID: 2154279
  • Exp Mol Med.
  • 2013 Nov;45(11):e60.
Alzheimer's disease (AD) is the most common cause of age-related dementia. The neuropathological hallmarks of AD include extracellular deposition of amyloid-beta peptides and neurofibrillary tangles that lead to intracellular hyperphosphorylated...
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Increased glucose metabolism and alpha-glucosidase inhibition in Cordyceps militaris water extract-treated HepG2 cells

Kim DJ, Kang YH, Kim KK, Kim TW, Park JB, Choe M

BACKGROUND/OBJECTIVES: Recent living condition improvements, changes in dietary habits, and reductions in physical activity are contributing to an increase in metabolic syndrome symptoms including diabetes and obesity. Through such societal...
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Microarray Analysis of Short Heterodimer Partner (SHP)-induced Changes in Gene Expression in INS-1 Cells

Jung ED, Lee JH, Jang WG, Kim JG, Kim BW, Lee IK

BACKGROUND: Nuclear receptors are involved in the cell growth, development, differentiation, and metabolism. The orphan nuclear receptor SHP which lacks a DNA-binding domain is a negative regulator of nuclear receptor...
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Protective Effect of Sauchinone Against Regional Myocardial Ischemia/Reperfusion Injury: Inhibition of p38 MAPK and JNK Death Signaling Pathways

Kim SJ, Jeong CW, Bae HB, Kwak SH, Son JK, Seo CS, Lee HJ, Lee J, Yoo KY

Sauchinone has been known to have anti-inflammatory and antioxidant effects. We determined whether sauchinone is beneficial in regional myocardial ischemia/reperfusion (I/R) injury. Rats were subjected to 20 min occlusion of...
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The Mycobacterium avium subsp. paratuberculosis fibronectin attachment protein, a toll-like receptor 4 agonist, enhances dendritic cell-based cancer vaccine potency

Noh KT, Shin SJ, Son KH, Jung ID, Kang HK, Lee SJ, Lee EK, Shin YK, You JC, Park YM

  • KMID: 1383795
  • Exp Mol Med.
  • 2012 May;44(5):340-349.
In this study, we showed the direct interaction between Mycobacterium avium subsp. paratuberculosis fibronectin attachment protein (FAP) and toll-like receptor4 (TLR4) via co-localization and binding by using confocal microscopy and...
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Effects of Treadmill Exercise on the Recovery of Dopaminergic Neuron Loss and Muscle Atrophy in the 6-OHDA Lesioned Parkinson's Disease Rat Model

Choe MA, Koo BS, An GJ, Jeon S

This study was to determine the effect of exercise on the recovery of dopaminergic neuron loss and muscle atrophy in 6-OHDA-induced hemi Parkinson's disease model. Exercise was loaded twice per...
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