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Heat shock protein 70 increases cell proliferation, neuroblast differentiation, and the phosphorylation of CREB in the hippocampus

Kwon HJ, Kim W, Jung HY, Kang MS, Kim JW, Hahn KR, Yoo DY, Yoon YS, Hwang IK, Kim DW

In the present study, we investigated the effects of heat shock protein 70 (HSP70) on novel object recognition, cell proliferation, and neuroblast differentiation in the hippocampus. To facilitate penetration into...
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Decrease in glucose transporter 1 levels and translocation of glucose transporter 3 in the dentate gyrus of C57BL/6 mice and gerbils with aging

Lee KY, Yoo DY, Jung HY, Baek L, Lee H, Kwon HJ, Chung JY, Kang SH, Kim DW, Hwang IK, Choi JH

In the present study, we compared the cell-specific expression and changes protein levels in the glucose transporters (GLUTs) 1 and 3, the major GLUTs in the mouse and gerbil brains...
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Bacopa monnieri extract improves novel object recognition, cell proliferation, neuroblast differentiation, brain-derived neurotrophic factor, and phosphorylation of cAMP response element-binding protein in the dentate gyrus

Kwon HJ, Jung HY, Hahn KR, Kim W, Kim JW, Yoo DY, Yoon YS, Hwang IK, Kim DW

Bacopa monnieri is a medicinal plant with a long history of use in Ayurveda, especially in the treatment of poor memory and cognitive deficits. In the present study, we hypothesized...
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Changes of myelin basic protein in the hippocampus of an animal model of type 2 diabetes

Nam SM, Kwon HJ, Kim W, Kim JW, Hahn KR, Jung HY, Kim DW, Yoo DY, Seong JK, Hwang IK, Yoon YS

In this study, we observed chronological changes in the immunoreactivity and expression level of myelin basic protein (MBP), one of the most abundant proteins in the central nervous system, in...
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Diurnal variation of gonadotropin levels in girls with early stages of puberty

Kang YS, Yoo DY, Chung IH, Yoo EG

PURPOSE: Pubertal gonadotropin secretion shows circadian pattern and the luteinizing hormone (LH) levels tend to rise in later stages of puberty in girls. We studied the usefulness of basal LH...
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The triglyceride-to-high density lipoprotein cholesterol ratio in overweight Korean children and adolescents

Yoo DY, Kang YS, Kwon EB, Yoo EG

PURPOSE: The triglyceride-to-high-density lipoprotein cholesterol (TG/HDL-C) ratio has recently been reported as a biomarker of cardiometabolic risk in obese children and adolescents. The purpose of this study is to describe...
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Immunohistochemical localization of glucose transporter 1 and 3 in the scrotal and abdominal testes of a dog

Hahn KR, Jung HY, Yoo DY, Kim JW, Kim YH, Jo YK, Kim GA, Chung JY, Choi JH, Hwang IK, Jang G, Yoon YS

Glucose is essential for testicular function; the uptake of carbohydrate-derived glucose by cells is mediated by glucose transporters (GLUTs). In the present study, we investigated the activity of GLUT1 and...
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Delayed diagnosis of 22q11 deletion syndrome due to late onset hypocalcemia in a 11-year-old girl with imperforated anus

Yoo DY, Kim HJ, Cho KH, Kwon EB, Yoo EG

Neonatal hypocalcemia and congenital heart defects has been known as the first clinical manifestation of the chromosome 22q11.2 deletion syndrome (22q11DS). However, because of its wide clinical spectrum, diagnosis of...
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Dendropanax morbifera Léveille extract ameliorates D-galactose-induced memory deficits by decreasing inflammatory responses in the hippocampus

Lee KY, Jung HY, Yoo DY, Kim W, Kim JW, Kwon HJ, Kim DW, Yoon YS, Hwang IK, Choi JH

In the present study, we examined the effects of Dendropanax morbifera Léveille leaf extract (DML) on D-galactose-induced morphological changes in microglia and cytokines, including pro-inflammatory cytokines (interleukin [IL]-1β, IL-6, and...
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Effects of aluminum on the reduction of neural stem cells, proliferating cells, and differentiating neuroblasts in the dentate gyrus of D-galactose-treated mice via increasing oxidative stress

Nam SM, Kim JW, Yoo DY, Kim W, Jung HY, Choi JH, Hwang IK, Seong JK, Yoon YS

Aluminum (Al) accumulation increases with aging, and long-term exposure to Al is regarded as a risk factor for Alzheimer's disease. In this study, we investigated the effects of Al and/or...
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Differential expression of estrogen receptor α and progesterone receptor in the normal and cryptorchid testis of a dog

Jung HY, Yoo DY, Jo YK, Kim GA, Chung JY, Choi JH, Jang G, Hwang IK

Descending of the testes is an important process for spermatogenesis and cryptorchidism is one of the most relevant genital defects in dogs. In a previous study, we observed abnormal morphology...
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Reduction of adult hippocampal neurogenesis is amplified by aluminum exposure in a model of type 2 diabetes

Nam SM, Kim JW, Yoo DY, Jung HY, Choi JH, Hwang IK, Seong JK, Yoon YS

In this study, we investigated the effects of chronic aluminum (Al) exposure for 10 weeks on cell proliferation and neuroblast differentiation in the hippocampus of type 2 diabetic rats. Six-week-old...
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Postnatal changes in glucose transporter 3 expression in the dentate gyrus of the C57BL/6 mouse model

Jung HY, Yim HS, Yoo DY, Kim JW, Chung JY, Seong JK, Yoon YS, Kim DW, Hwang IK

In this study, we observed the ontogenetic changes in glucose transporter 3 (GLUT3) immunoreactivity, a major neuronal GLUT, in the dentate gyrus of mouse brains at various ages: postnatal day...
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Sirtuin-2 inhibition affects hippocampal functions and sodium butyrate ameliorates the reduction in novel object memory, cell proliferation, and neuroblast differentiation

Jung HY, Yoo DY, Kim JW, Kim DW, Choi JH, Chung JY, Won MH, Yoon YS, Hwang IK

We investigated the effects of the sirtuin-2 (SIRT2) inhibitor AK-7 on novel object memory, cell proliferation, and neuroblast differentiation in the dentate gyrus. In addition, we also observed the relationships...
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Comparison of pharmacological and genetic inhibition of cyclooxygenase-2: effects on adult neurogenesis in the hippocampal dentate gyrus

Nam SM, Kim JW, Yoo DY, Choi JH, Kim W, Jung HY, Won MH, Hwang IK, Seong JK, Yoon YS

Inducible cyclooxygenase-2 (COX-2) has received much attention because of its role in neuro-inflammation and synaptic plasticity. Even though COX-2 levels are high in healthy animals, the function of this factor...
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Treadmill exercise prevents diabetes-induced increases in lipid peroxidation and decreases in Cu,Zn-superoxide dismutase levels in the hippocampus of Zucker diabetic fatty rats

Kim JW, Chae J, Nam SM, Kim YN, Yoo DY, Choi JH, Jung HY, Song W, Hwang IK, Seong JK, Yoon YS

In the present study, we investigated the effects of treadmill exercise on lipid peroxidation and Cu,Zn-superoxide dismutase (SOD1) levels in the hippocampus of Zucker diabetic fatty (ZDF) rats and lean...
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Cell proliferation and neuroblast differentiation in the dentate gyrus of high-fat diet-fed mice are increased after rosiglitazone treatment

Yoo DY, Kim W, Kim DW, Nam SM, Jung HY, Kim JW, Lee CH, Choi JH, Won MH, Yoon YS, Hwang IK

In this study, we determined how rosiglitazone (RSG) differentially affected hippocampal neurogenesis in mice fed a low-fat diet (LFD) or high-fat diet (HFD; 60% fat). LFD and HFD were given...
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Intragastric gavage with denatonium benzoate acutely induces neuronal activation in the solitary tract nucleus via the vagal afferent pathway

Jung HY, Kim W, Yoo DY, Nam SM, Kim JW, Choi JH, Yoon YS, Kim HY, Hwang IK

Natural toxic substances have a bitter taste and their ingestion sends signals to the brain leading to aversive oral sensations. In the present study, we investigated chronological changes in c-Fos...
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Unilateral cryptorchidism induces morphological changes of testes and hyperplasia of Sertoli cells in a dog

Moon JH, Yoo DY, Jo YK, Kim GA, Jung HY, Choi JH, Hwang IK, Jang G

Cryptorchidism is one of the most common genital defects in dogs. This study investigated the effects of abdominal cryptorchidism on morphology, cell proliferation, and Sertoli cell condition in a dog...
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Detailed Differentiation of Calbindin D-28k-Immunoreactive Cells in the Dentate Gyrus in C57BL/6 Mice at Early Postnatal Stages

Yoo DY, Yoo KY, Park JH, Choi JW, Kim W, Hwang IK, Won MH

The hippocampus makes new memories and is involved in mental cognition, and the hippocampal dentate gyrus (DG) is critical because neurogenesis, which occurs throughout life, occurs in the DG. We...
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