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| 1 | Dynamic recrystallization behavior and microstructural evolution of Mg alloy AZ31 through high-speed rolling显示文摘High-speed rolling(HSR) is known to improve the workability of Mg alloys significantly, which makes it possible to impose a large reduction in a single pass without fracture. In the present study, dynamic recrystallization(DRX) behavior and microstructural and textural variations of Mg alloy AZ31 during a HSR process were investigated by conducting rolling with different imposed reductions in the range of 20%–80% at a high rolling speed of 470 m/min and 400?C. High-strain-rate deformation during HSR suppresses dislocation slips but promotes twinning, which results in the formation of numerous twins of several types, i.e., {10–12} extension twins, {10–11} and {10–13} contraction twins,and {10–11}–{10–12} double twins. After twinning, high strain energy is accumulated in twin bands because their crystallographic orientations are favorable for basal slips, leading to subsequent DRX at the twin bands. Accordingly, twinning activation and twinning-induced DRX behavior play crucial roles in accommodating plastic deformation during HSR and in varying microstructure and texture of the highspeed-rolled(HSRed) sheets. Area fraction of fine DRXed grains formed at the twin bands increases with increasing rolling reduction, which is attributed to the combined effects of increased strain, strain rate,and deformation temperature and a decreased critical strain for DRX. Size, internal strain, and texture intensity of the DRXed grains are smaller than those of unDRXed grains. Therefore, as rolling reduction increases, average grain size, stored internal energy, microstructural inhomogeneity, and basal texture intensity of the HSRed sheets gradually decrease owing to an increase in the area fraction of the DRXed grains. | Jeong Hun Lee Jong Un Lee Sang-Hoon Kim Seok Weon Song Chong Soo Lee Sung Hyuk Park | 2018 | Journal of Materials Science & Technology2018,34,10: | 8 |
| 2 | The role of extracellular vesicles in animal reproduction and diseases显示文摘Extracellular vesicles(EVs)are nanosized membrane-enclosed compartments that serve as messengers in cell-to-cell communication,both in normal physiology and in pathological conditions.EVs can transfer functional proteins and genetic information to alter the phenotype and function of recipient cells,which undergo different changes that positively affect their structural and functional integrity.Biological fluids are enriched with several subpopulations of EVs,including exosomes,microvesicles(MVs),and apoptotic bodies carrying several cargoes,such as lipids,proteins,and nucleic acids.EVs associated with the reproductive system are actively involved in the regulation of different physiological events,including gamete maturation,fertilization,and embryo and fetal development.EVs can influence follicle development,oocyte maturation,embryo production,and endometrial-conceptus communication.EVs loaded with cargoes are used to diagnose various diseases,including pregnancy disorders;however,these are dependent on the type of cell of origin and pathological characteristics.EV-derived microRNAs(miRNAs)and proteins in the placenta regulate inflammatory responses and trophoblast invasion through intercellular delivery in the placental microenvironment.This review presents evidence regarding the types of extracellular vesicles,and general aspects of isolation,purification,and characterization of EVs,particularly from various types of embryos.Further,we discuss EVs as mediators and messengers in reproductive biology,the effects of EVs on placentation and pregnancy disorders,the role of EVs in animal reproduction,in the male reproductive system,and mother and embryo cross-communication.In addition,we emphasize the role of microRNAs in embryo implantation and the role of EVs in reproductive and therapeutic medicine.Finally,we discuss the future perspectives of EVs in reproductive biology. | Sangiliyandi Gurunathan Min-Hee Kang Hyuk Song Nam Hyung Kim Jin-Hoi Kim | 2022 | Journal of Animal Science and Biotechnology2022,13,6: | 4 |
| 3 | Involvement of heme oxygenase-1 induction in anti-vascular inflammation effects of Xanthoceras sorbifolia in human umbilical vein endothelial cells显示文摘OBJECTIVE: To define the effects of Xanthoceras sorbifolia(EXS) on vascular inflammation and the mechanisms in endothelial cells.METHODS: Vascular protective effects of an ethanol extract of seeds from EXS(1-50 μg/mL) against tumor necrosis factor-α(TNF-α)-induced vascularinflammation were examined in human umbilical vein endothelial cells(HUVECs).RESULTS: EXS significantly decreased TNF-α-induced expression of cell adhesion molecules, such as intracellular adhesion molecule-1, vascular cell adhesion molecule-1, and endothelial cell selectin,in a dose-dependent manner. Pre-treatment with EXS significantly inhibited translocation and transcriptional activity of nuclear factor-κB(NF-κB) increased by TNF-α. EXS also significantly inhibited formation of intracellular reactive oxygen species(ROS). Moreover, the vascular protective effects of EXS were linked to up-regulation of heme oxygenase-1(HO-1) and nuclear factor E2-related factor-2(Nrf-2) expression. EXS-induced HO-1 expression was significantly decreased in SnPP(HO-1 inhibitor)-and HO-1 siRNA-treated cells, whereas an increase was found in cobalt protoporphyrin IX(CoPP)(HO-1 inducer)-treated cells. In addition, pretreatment with EXS increased HO-1 and Nrf-2 expression under TNF-α stimulation with or without N-acetyl-L-cysteine. Furthermore, the inhibitory effects of EXS on TNF-α-induced vascular inflammation were partially reversed in SnPP-and of HO-1siRNA-treated cells but increased by CoPP.CONCLUSION: These results suggest that EXS may have important implications for prevention of vascular complications associated with vascular inflammation by inhibition of the NF-κB/ROS pathway and activation of the Nrf-2/HO-1 pathway. | Jung Joo Yoon Byung Hyuk Han Eun Sik Choi Seung Namgung Da Hye Jeong Song Nan Jin Yun Jung Lee Dae Gill Kang Ho Sub Lee | 2018 | Journal of Traditional Chinese Medicine2018,38,6: | 4 |
| 4 | Interstitial tissue-specific gene expression in mouse testis by intra-tunica albuguineal injection of recombinant baculovirus显示文摘这研究的目的是用修改 recombinant baculovirus 在鼠标睾丸为空隙的织物特定的蛋白质表示建立一个基因交货系统。格林荧光灯表示 recombinant baculovirus (GFP-baculovirus ) 的蛋白质(GFP ) ,在哪个昆虫房间特定的多面体倡导者被 cytomegalovirus (CMV ) 代替 IE 倡导者,习惯于 transfect 在 vitro 的阴囊的房间,并且为睾丸的空隙的织物的 intra-tunica albuguineal 注射。GFP 表示被荧光显微镜学在冻结的睾丸节监视。在阴囊的纸巾的 GFP 的表示被反向的抄写聚合酶链反应(RT-PCR ) 也估计,并且蛋白质表示被西方的污点估计。在 vitro 的阴囊的房间被修改 recombinant GFP-baculovirus 高效地感染。进老鼠睾丸的 GFP-baculovirus 的 Intra-tunica albuguineal 注射在空隙的纸巾导致了 GFP 表示的高水平。RT-PCR 分析清楚地在睾丸显示出 GFP 基因表示,特别地空隙的纸巾。编码了 recombinant 老鼠的修改 baculovirus 的 Intra-tunica albuguineal 注射像胰岛素的生长因素绑定蛋白质(IGFBP )-5 导致了睾丸和精液的 IGFBP-5 的增加。在结论,我们在阴囊的房间在 vivo 为基因表示开发了一个有效交货系统,特别地用修改 recombinant baculovirus 的 intra-tunica albuguineal 注射的空隙的织物的房间。这个方法将为在睾丸的外部生精的小管的阴囊的房间要求基因交货和蛋白质表示的申请是特别地相关的。 | Hyun Jung Park Won Young Lee Jin Hoi Kim Jae Hwan Kim Hun Jong Jung Nam Hyung Kim Bo Kyung Kim Hyuk Song | 2009 | Asian Journal of Andrology2009,11,3: | 3 |
| 5 | Risk factors for metachronous gastric carcinoma development after endoscopic resection of gastric dysplasia: Retrospective, single-center study显示文摘AIM To determine the gastric adenocarcinoma(GAC)occurrence rate and related factors,we evaluated the follow-up results of patients confirmed to have gastric dysplasia after endoscopic resection(ER).METHODS We retrospectively analyzed the medical records,endoscopic examination records,endoscopic procedure records,and histological records of 667 cases from641 patients who were followed-up for at least 12mo,from among 1273 patients who were conformed to have gastric dysplasia after Endoscopic mucosal resection(EMR)or endoscopic submucosal dissection (ESD)of gastric mucosal lesions between January 2007and August 2013 at the Chungnam National University Hospital.RESULTS The mean follow-up period was 33.8 mo,and the median follow-up period was 29 mo(range:12-87).During the follow-up period,the occurrence of metachronous GAC was 4.0%(27/667).The mean and median interval periods between the occurrence of metachronous GAC and endoscopic treatment of gastric dysplasia were 36.3 and 34 mo,respectively(range:16-71).The factors related to metachronous GAC occurrence after ER for gastric dysplasia were male sex(5.3%vs 1.0%),open-type atrophic gastritis(9.5%vs3.4%),intestinal metaplasia(6.8%vs 2.4%),and highgrade dysplasia(HGD;8.4%vs 3.2%).Among them,male sex[OR:5.05(1.18-21.68),P=0.029],intestinal metaplasia[OR:2.78(1.24-6.23),P=0.013],and HGD[OR:2.70(1.16-6.26),P=0.021]were independent related factors in multivariate analysis.Furthermore,24of 27 GAC cases(88.9%)occurred at sites other than the previous resection sites,and 3(11.1%)occurred at the same site as the previous resection site.CONCLUSION Male sex,intestinal metaplasia,and HGD were significantly related to the occurrence of metachronous GAC after ER of gastric dysplasia,and most GACs occurred at sites other than the previous resection sites. | Hee Seok Moon Gee Young Yun Ju Seok Kim Hyuk Soo Eun Sun Hyung Kang Jae Kyu Sung Hyun Yong Jeong Kyu-Sang Song | 2017 | World Journal of Gastroenterology2017,23,24: | 3 |
| 6 | The Effect of a Multispecies Probiotic Mixture on the Symptoms and Fecal Microbiota in Diarrhea-dominant Irritable Bowel Syndrome: A Randomized, Double-blind, Placebo-controlled Trial显示文摘 | Bong Ki Cha Seung Mun Jung Chang Hwan Choi In-Do Song Hyun Woong Lee Hyung Joon Kim Jae Hyuk Sae Kyung Chang Kijeong Kim Won-Seok Chung Jae-Gu Seo | 2012 | Journal of Clinical Gastroenterology2012,,3: | 3 |
| 7 | Differential diagnosis between gallbladder adenomas and cholesterol polyps on contrast-enhanced harmonic endoscopic ultrasonography显示文摘 | Chan Hyuk Park Moon Jae Chung Tak Geun Oh Jeong Youp Park Seungmin Bang Seung Woo Park Hyunki Kim Ho Kyoung Hwang Woo Jung Lee Si Young Song | 2013 | Surgical Endoscopy2013,,4: | 2 |
| 8 | A case of hypereosinophilic syndrome presenting with intractable gastric ulcers显示文摘We report a rare case of hypereosinophilic syndrome(HES)presenting with intractable gastric ulcers.A 71-year-old man was admitted with epigastric pain.Initial endoscopic findings revealed multiple,active gastric ulcers in the gastric antrum.He underwent Helicobacter pylori(H pylori)eradication therapy followed by proton pump inhibitor(PPI)therapy.However,follow-up endoscopy at 4,6,10 and 14 mo revealed persistent multiple gastric ulcers without significant improvement.The proportion of his eosinophil count increased to 43%(total count:7903/mm 3).Abdominal-pelvic and chest computed tomography scans showed multiple small nodules in the liver and both lungs.The endoscopic biopsy specimen taken from the gastric antrum revealed prominent eosinophilic infiltration,and the liver biopsy specimen also showed eosinophilic infiltration in the portal tract and sinusoid.A bone marrow biopsy disclosed eosinophilic hyperplasia as well as increased cellularity of 70%.The patient was finally diagnosed with HES involving the stomach,liver,lung,and bone marrow.When gastric ulcers do not improve despite H pylori eradication and prolonged PPI therapy,infiltrative gastric disorders such as HES should be considered. | Tae Young Park Chang Hwan Choi Suh Yoon Yang InSoo Oh In-Do Song Hyun Woong Lee Hyung Joon Kim Jae Hyuk Do Sae Kyung Chang Ah Ra Cho Young Joo Cha | 2009 | World Journal of Gastroenterology2009,15,48: | 2 |
| 9 | Risk Factors Associated with Complication Following Laparoscopy-Assisted Gastrectomy for Gastric Cancer: A Large-Scale Korean Multicenter Study显示文摘 | Min Chan Kim MD Wook Kim MD Hyung Ho Kim MD Seung Wan Ryu MD Seong Yeob Ryu MD Kyo Young Song MD Hyuk Joon Lee MD Gyu Seok Cho MD Sang Uk Han MD Woo Jin Hyung MD | 2008 | Annals of Surgical Oncology2008,,10: | 2 |
| 10 | Occult gastric cancer with distant metastasis proven by random gastric biopsy显示文摘Krukenberg tumor, a rare metastatic ovarian tumor arising from gastrointestinal adenocarcinoma mainly, tends to occur in premenopausal females. Finding the origin of a Krukenberg tumor is crucial for determining prognosis. In Eastern countries, the most common origin of Krukenberg tumor is stomach cancer, which is generally diagnosed via endoscopic biopsy to investigate an abnormal mucosal lesion. Here, we describe a case of huge adnexal mass in a 33-year-old woman who presented with abdominal distension. Two independent endoscopic examinations performed by experts in two tertiary university hospitals revealed no abnormal mucosal lesion. The patient was diagnosed with a Krukenberg tumor according to findings from random endoscopic biopsies taken from normal-looking gastric mucosa in our hospital. It is very rare to be diagnosed via a random biopsy in cases where three well-trained endoscopists had not found any mucosal lesion previously. Thus, in this case, random biopsy was helpful in finding the origin of a Krukenberg tumor. | Sang Hyuk Lee Kyu-Hyoung Lim Seo-Young Song Hui-Young Lee Sung Chul Park Chang Don Kang Sung Joon Lee Dong Wook Choi Sung Bae Park Young-Joon Ryu | 2016 | World Journal of Gastroenterology2016,22,16: | 2 |
| 11 | Randomized controlled trial of standardized education and telemonitoring for pain in outpatients with advanced solid tumors显示文摘 | Han Sang Kim Sang Joon Shin Sang Cheol Kim Surim An Sun Young Rha Joong Bae Ahn Byoung Chul Cho Hye Jin Choi Joo Hyuk Sohn Hyo Song Kim Hyun Cheol Chung Joo Hang Kim Jae Kyung Roh Soohyeon Lee | 2013 | Supportive Care in Cancer2013,,6: | 1 |
| 12 | A mathematical model and a genetic algorithm for two - sided assembly line balancing 显示文摘 | Yeo Keun Kim Won Seop Song Jun Hyuk Kim | 2009 | Computers & Industrial Engineering2009,36,: | 1 |
| 13 | Hospital‐based influenza surveillance in Korea: Hospital‐based influenza morbidity and mortality study group显示文摘 | Joon Young Song Hee Jin Cheong Sung Hyuk Choi Ji Hyeon Baek Seung Baik Han Seong‐Heon Wie Byung Hak So Hyo Youl Kim Young Keun Kim Won Suk Choi Sung Woo Moon Jacob Lee Gu Hyun Kang Hye Won Jeong Jung Soo Park Woo Joo Kim | 2013 | J Med Virol2013,,5: | 1 |
| 14 | Regulation of Differentiation Potential of Human Mesenchymal Stem Cells by Intracytoplasmic Delivery of Coactivator‐Associated Arginine Methyltransferase 1 Protein Using Cell‐Penetrating Peptide显示文摘 | Junghyun Jo Haengseok Song Sang Gyu Park Soo‐Hong Lee Jung‐Jae Ko Jong‐Hyuk Park Jaemin Jeong Yong‐Pil Cheon Dong Ryul Lee | 2012 | STEM CELLS2012,,8: | 1 |
| 15 | Impact of Ischemia-Guided Revascularization With Myocardial Perfusion Imaging for Patients With Multivessel Coronary Disease显示文摘 | Young-Hak Kim Jung-Min Ahn Duk-Woo Park Hae Geun Song Jong-Young Lee Won-Jang Kim Sung-Cheol Yun Soo-Jin Kang Seung-Whan Lee Cheol Whan Lee Dae Hyuk Moon Cheol-Hyun Chung Jae-Won Lee Seong-Wook Park Seung-Jung Park | 2012 | Journal of the American College of Cardiology2012,,3: | 1 |
| 16 | IgG4-related sclerosing esophagitis: a case report显示文摘 | Hyuk Lee Mee Joo Tae Jun Song Sun Hee Chang Hanseong Kim Yeon Soo Kim Ji Yoon Ryoo | 2011 | Gastrointestinal Endoscopy2011,,4: | 1 |
| 17 | The brain activation pattern of the medial temporal lobe during chewing gum: a functional MRI study显示文摘The human brain is known to be influenced by environmental stimuli(Feeney et al.,1982;Kaplan,1988).Therefore,research on the brain activation pattern by external stimuli has been an important topic in neuroscience(Kaplan,1988).Chewing gum has been known to have a positive effect on cognition,including alertness,attention,cognitive processing speed, | Youn-Hee Choi Woo Hyuk Jang Sang-Uk Im Keun-Bae Song Hee-Kyung Lee Han Do Lee You Sung Seo Sung Ho Jang | 2017 | Neural Regeneration Research2017,12,5: | 1 |
| 18 | Poly-Si thin film transistors fabricated by combining excimer laser annealing and metal induced lateral crystallization显示文摘 | KEE CHAN PARK JAE HOON LEE IN HYUK SONG | 2002 | Journal of Non-crystalline Solids2002,,: | 1 |
| 19 | The Effect of a Multispecies Probiotic Mixture on the Symptoms and Fecal Microbiota in Diarrhea-dominant Irritable Bowel Syndrome: A Randomized, Double-blind, Placebo-controlled Trial显示文摘 | Bong Ki Cha Seung Mun Jung Chang Hwan Choi In-Do Song Hyun Woong Lee Hyung Joon Kim Jae Hyuk Sae Kyung Chang Kijeong Kim Won-Seok Chung Jae-Gu Seo | 2012 | Journal of Clinical Gastroenterology2012,,3: | 1 |
| 20 | Luminescent properties of CaTiO3 ∶ Pr thin-film phosphor deposited on ZnO/ITO/glass substrate显示文摘 | Sung Mook Chung Sang Hyuk Han Kuk Hyun Song | 2005 | J Lumin2005,114,34: | 1 |