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Brain-derived neurotrophic factor mediates macrophage migration inhibitory factor to protect neurons against oxygen-glucose deprivation

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Neural Regeneration Research 2020年第8期15卷 1483-1489页

作者： Su Hwan Bae Mi Ran Yoo Ye Yeong Kim In Kyung Hong Mi hee Kim seung Hak Lee Dae Yul Kim Department of Rehabilitation Medicine Asan Medical CenterUniversity of Ulsan College of MedicineSeoulRepublic of Korea Asan Institute for Life Sciences Asan Medical CenterUniversity of Ulsan College of MedicineSeoulRepublic of Korea

Macrophage migration inhibitory factor(MIF)is a chemokine that plays an essential role in immune system *** studies suggested that MIF protects neurons in ischemic ***,few studies are reported on the role of MIF in neurological recovery after ischemic *** purpose of this study is to identify the molecular mechanism of neuroprotection mediated by *** neuroblastoma cells were incubated in Dulbecco’s modified Eagle’s medium under oxygen-glucose deprivation(OGD)for 4 hours and then returned to normal aerobic environment for reperfusion(OGD/R).30 ng/mL MIF recombinant(30 ng/mL)or ISO-1(MIF antagonist;50μM)was administered to human neuroblastoma *** cell cultures were assigned to one of four groups:control,OGD/R,OGD/R with MIF,OGD/R with *** viability was analyzed using WST-1 *** levels of brain-derived neurotrophic factor(BDNF),microtubule-associated protein 2(MAP2),Caspase-3,Bcl2,and Bax were detected by western blot assay and immunocytochemistry in each group to measure apoptotic ***-1 assay results revealed that compared to the OGD/R group,cell survival rate was significantly higher in the OGD/R with MIF group and lower in the OGD/R with ISO-1 *** blot assay and immunocytochemistry results revealed that expression levels of BDNF,Bcl2,and MAP2 were significantly higher,and expression levels of Caspase-3 and Bax were significantly lower in the MIF group than in the OGD/R *** levels of BDNF,Bcl2,and MAP2 were significantly lower,and expression levels of Caspase-3 and Bax were significantly higher in the ISO-1 group than in the OGD/R *** administration promoted neuronal cell survival and induced high expression levels of BDNF,MAP2,and Bcl2(anti-apoptosis)and low expression levels of Caspase-3 and Bax(pro-apoptosis)in an OGD/R *** results suggest that MIF administration is effective for inducing expression of BDNF and leads to neuroprotection of neuronal cells

关键词： apoptosis brain-derived neurotrophic factor hypoxia in vitro ischemic stroke macrophage migration inhibitory factor nerve regeneration neuroprotective effect reperfusion

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Bidirectional WDM Self-Healing Ring Network for Hub/Remote Nodes

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光学学报 2003年第S1期23卷 715-716页

作者： Sung-Bum Park seung Goo Kang Sang Bae Lee Chang-hee Lee KAIST Dept. of Electrical Engineering and Computer Science 373-1 Kusong-dong Yusong-gu Daejeon 305-701 KoreaCurrent affiliation: Samsung Electronics Co. Ltd. Suwon KoreaXL Photonics Inc.Daejeon KoreaKIST Seoul KoreaKAIST Dept. of Electrical Engineering and Computer Science 373-1 Kusong-dong Yusong-gu Daejeon 305-701 Korea

We demonstrate a bidirectional WDM self-healing ring network for hub/remote nodes with one fiber. In this network, self-healing can be achieved within 8 ms. The transmission capacity can be doubled in the operating st... 详细信息

关键词： WDM on in Bidirectional WDM Self-Healing Ring Network for Hub/Remote Nodes for dBm

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Pediatric appendicitis with appendicolith often presents with prolonged abdominal pain and a high risk of perforation

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World Journal of Pediatrics 2018年第2期14卷 184-190页

作者： hee Mang Yoon Jung Heon Kim Jong seung Lee Jeong-Min Ryu Dae Yeon Kim Jeong-Yong Lee Department of Radiology and Research Institute of Radiology Asan Medical CenterUniversity of Ulsan College of MedicineSeoul 05505South Korea Department of Emergency Medicine Asan Medical CenterUniversity of Ulsan College of MedicineSeoul 05505South Korea Department of Pediatric Surgery Asan Medical CenterUniversity of Ulsan College of MedicineSeoul 05505South Korea Department of Pediatrics Asan Medical CenterUniversity of Ulsan College of Medicine88Olympic-ro 43-gilSongpa-guSeoul 05505South Korea

Background Appendicolith can cause appendiceal obstruction and acute *** high prevalence may be related to the high perforation rate in pediatric *** study assessed the characteristics of appendicolith and its clinical significance in pediatric *** A retrospective study was performed among children and adolescents younger than 17 years who were preopera-tively diagnosed with appendicitis in the pediatric emergency department(ED).A total of 269 patients with a mean age of 9.98±3.37 years were *** features and contrast-enhanced computed tomography findings were *** Among the 269 patients,147(54.6%)had appendicoliths,with a mean maximal diameter of 5.21±2.34 ***-pared to the no appendicolith group,the appendicolith group demonstrated more prolonged abdominal pain(≥48 hours)before the ED visit(23.1%vs.11.5%;P=0.013),clinical features of severe appendicitis(presence of fever,vomiting,posi-tive urine ketone,and increased C-reactive protein),and higher rate of perforation(43.5%vs.9.8%;P<0.001).Multivariate risk factor analysis for perforated appendicitis in the appendicolith group revealed that maximal diameter of 5 mm or more in the appendicolith(adjusted odds ratio[aOR]2.919;95%CI 1.325-6.428,P=0.008)and proximal collapse adjacent to the appendicolith(aOR 2.943;95%CI 1.344-6.443,P=0.007)were *** Pediatric appendicitis with appendicolith often presents with prolonged abdominal pain and severe clinical conditions with a high risk of perforation.

关键词： Appendicitis Appendicolith Computed tomography Pediatrics Risk factors

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Fermented rice bran prevents atopic dermatitis in DNCB-treated NC/Nga mice

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The Journal of Biomedical Research 2016年第4期30卷 334-343页

作者： Evelyn Saba Chun hee Lee Da Hye Jeong Kija Lee Tae-Hwan Kim Seong-Soo Roh seung-Hyung Kim Man hee Rhee Department of Veterinary Medicine College of Veterinary MedicineKyungpook National UniversityDaegu 41566Korea Enzyme LAPA Co. Cheonan 31164 Korea College of Korean Medicine Daegu Haany University Daegu 42158Korea Institute of Traditional Medicine&Bioscience Daejeon University Daejeon 34520 Korea

The fermentation of natural plants has a favorable effect on the functional and biological activities of living systems. These include anti-oxidative, anti-inflammatory, and anti-platelet aggregation activities. This is attributed to the chemical conversion of the parent plants to functional constituents, which show more potent biological activity. In our study, rice bran along with oriental medicinal plants （Angelicae gigantis, Cnidium officinale, Artemisia princeps, and Camellia sinensis） was fermented by Lactobacillus rhamnosus and Pichia deserticola （FRBE）. We evaluated the effects of oral administration of FRBE on atopic dermatitis in 1-chloro-2,4-dinitrobenzene （DNCB）-treated NC/Nga mice. FRBE significantly ameliorated the macroscopic and microscopic appearance of skin lesions in DNCB-induced atopic dermatitis and reduced levels of serum immunoglobulin E and the differential white blood cell count. In addition, it reduced skin thickness compared to that of atopic dermatitis-affected skin. FRBE treatment also reduced mast cell incorporation in skin lesions of atopic dermatitis. The total cell number in dorsal skin tissue and the axillary lymph node increased following DNCB application, and this was normalized by FRBE treatment. Moreover, it decreased the levels ofCD8＋ helper T cells and Gr-1 ＋/CD1 lb＋ B cells in peripheral blood mononuclear cells and skin lesions in DNCB-induced atopic dermatitis. Using real-time polymerase chain reaction analysis, we demonstrated that FRBE significantly inhibited mRNA expression of cytokines （e.g., interleukin-5 and interleukin-13） and cyclooxygenase-2 in AD skin lesions. These results suggest that FRBE could be a valuable herbal remedy for the treatment of atopic dermatitis.

关键词： fermentation rice bran gas chromatography Lactobacillus rhamnosus Pichia deserticola

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Spatial and spectral measurement of laser-driven protons through radioactivation

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Nuclear Science and Techniques 2023年第12期34卷 30-39页

作者： Yin‑Ren Shou Xue‑Zhi Wu Gwang‑Eun Ahn seung Yeon Kim Seong Hoon Kim Hwang Woon Lee Jin Woo Yoon Jae hee Sung Seong Ku Lee Xue‑Qing Yan Il Woo Choi Chang hee Nam Center for Relativistic Laser Science Institute for Basic ScienceGwangju 61005Republic of Korea School of Physics Peking UniversityBeijing 100871China Advanced Photonics Research Institute Gwangju Institute of Science and TechnologyGwangju 61005Republic of Korea Department of Physics and Photon Science Gwangju Institute of Science and TechnologyGwangju 61005Republic of Korea

The simultaneous measurement of the spatial profile and spectrum of laser-accelerated protons is important for further optimization of the beam qualities and *** report a detailed study regarding the underlying physics and regular procedure of such a measurement through the radioactivation of a stack composed of aluminum,copper,and CR-39 plates as well as radiochromic films(RCFs).After being radioactivated,the copper plates are placed on imaging plates(IPs)to detect the positrons emitted by the reaction products through contact *** spectrum and energy-dependent spatial profile of the protons are then obtained from the IPs and confirmed by the measured ones from the RCFs and CR-39 *** also discuss the detection range,influence of electrons,radiation safety,and spatial resolution of this ***,insights regarding the extension of the current method to online measurements and dynamic proton imaging are also provided.

关键词： Laser-driven proton acceleration Proton-induced nuclear reaction Radioactivation measurement Contact imaging

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Mesenchymal stem cells for enhancing biological healing after meniscal injuries

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World Journal of Stem Cells 2021年第8期13卷 1005-1029页

作者： Hye Chang Rhim Ok hee Jeon seung-Beom Han Ji Hoon Bae Dong Won Suh Ki-Mo Jang T.H.Chan School of Public Health Harvard UniversityBostonMA 02115United States Department of Biomedical Sciences Korea University College of MedicineSeoul 02841SeoulSouth Korea Department of Orthopaedic Surgery Anam HospitalKorea University College of MedicineSeoul 02841SeoulSouth Korea Department of Orthopaedic Surgery Guro HospitalKorea University College of MedicineSeoul 08308SeoulSouth Korea Department of Orthopaedic Surgery Barunsesang HospitalSeongnam 13497South Korea

The meniscus is a semilunar fibrocartilage structure that plays important roles in maintaining normal knee biomechanics and *** roles of the meniscus,including load distribution,force transmission,shock absorption,joint stability,lubrication,and proprioception,have been well *** to the meniscus can disrupt overall joint stability and cause various symptoms including pain,swelling,giving-way,and *** treated properly,it can lead to early degeneration of the knee *** meniscal injuries remain a significant challenge due to its low intrinsic healing potential,most notably in avascular and aneural inner two-thirds of the area,more efficient repair methods are *** stem cells(MSCs)have been investigated for their therapeutic potential in vitro and in *** far,the application of MSCs,including bone marrow-derived,synovium-derived,and adipose-derived MSCs,has shown promising results in preclinical studies in different animal *** preclinical studies could be categorized into intra-articular injection and tissueengineered construct application according to delivery *** promising results in preclinical studies,there is still a lack of clinical *** review describes the basic knowledge,current treatment,and recent studies regarding the application of MSCs in treating meniscal *** directions for MSC-based approaches to enhance meniscal healing are suggested.

关键词： Meniscus Meniscus healing Cell-based treatment Mesenchymal stem cell Tissue engineering

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Conjunctival cystectomy assisted by pattern scan laser photocoagulation

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Military Medical Research 2017年第4期4卷 236-239页

作者： hee Kyung Yang Moosang Kim seung-Jun Lee Sang Beom Han Joon Young Hyon Won Ryang Wee Department of Ophthalmology Seoul National University Bundang HospitalSeoul National University College of MedicineSeongnamRepublic of Korea. Department of Ophthalmology Kangwon National University HospitalKangwon National University Graduate School of MedicineChuncheonRepublic of Korea. Department of Ophthalmology Seoul National University HospitalSeoul National University College of MedicineSeoulRepublic of Korea.

Background: To introduce a new technique of laser-assisted conjunctival cystectomy using pattern scan laser(PASCAL) *** presentation: A 50-years-old Asian woman presented with a conjunctival cyst in the left eye. Slit-lamp examination revealed a 5 mm×2 mm sized freely movable conjunctival cyst. After a 1 mm×1 mm sized conjunctival opening was made using PASCAL photocoagulation, the cyst was extracted using a non-toothed forceps without rupture. Two weeks later, complete re-epithelialization of the conjunctiva was observed without any complications. No evidence of recurrence was noted over the 6-month follow-up ***: Conjunctival cystectomy with the adjunctive use of PASCAL photocoagulation can be an effective and safe treatment method.

关键词： Conjunctival cyst Laser PASCAL photocoagulation

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Schizonepeta tenuifolia inhibits collagen stimulated platelet function via suppressing MAPK and Akt signaling

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The Journal of Biomedical Research 2019年第4期33卷 250-257页

作者： Bo-Ra Jeon Muhammad Irfan Minki Kim seung Eun Lee Jeong Hoon Lee Man hee Rhee Laboratory of Physiology and Cell Signaling College of Veterinary MedicineKyungpook National UniversityDaegu 41566Republic of Korea Department of Herbal Crop Research National Institute of Horticultural and Herbal ScienceEumseong 27709Republic of Korea.

The prevalence of cardiovascular diseases(CVDs)is increasing at a rapid pace in developed countries,and CVDs are the leading cause of morbidity and *** products and ethnomedicine have been shown to reduce the risk of ***(S.)tenuifolia is a medicinal plant widely used in China,Korea,and Japan and is known to exhibit anti-inflammatory,antioxidant,and immunomodulatory *** hypothesized that given herbal plant exhibit pharmacological activities against CVDs,we specifically explored its effects on platelet *** aggregation was evaluated using standard light transmission *** calcium mobilization was assessed using Fura-2/AM,and granule secretion(ATP release)was measured in a *** binding to integrin a_(Ⅱb)β_3,was assessed using flow *** of mitogen-activated protein kinase(MAPK)signaling molecules and activation of the protein kinase B(Akt)was assessed using Western blot ***,extract potently and significantly inhibited platelet aggregation,calcium mobilization,granule secretion,and fibrinogen binding to integrin a_(Ⅱb)β_***,all extracts significantly inhibited MAPK and Akt *** extract inhibited platelet aggregation and granule secretion,and attenuated collagen mediated GPVI downstream signaling,indicating the potential therapeutic effects of these plant extracts on the cardiovascular system and platelet *** suggest that *** extract may be a potent candidate to treat platelet-related CVDs and to be used as an antiplatelet and antithrombotic agent.

关键词： S.tenuifolia platelet MAPK Akt natural antithrombotic agent

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Granular cell tumor of colon:Report of a case and review of literature

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World Journal of Gastroenterology 2004年第16期10卷 2452-2454页

作者： Dae-KyungSohn Hyo-SeongChoi Yeon-SooChang Jin-MyeongHuh Dae-HyunKim Dae-YongKim Young-HoonKim hee-JinChang Kyung-HaeJung seung-YongJeong Research Institute and Hospital National Cancer CenterGoyangGyeonggi 411-769Korea

Granular cell tumor (GCT) is uncommon in the colon and *** we report a case of GCT in the transverse colon.A 48-year-old male patient underwent a screening colonoscopy.A yellowish sessile lesion,about 4 mm in diameter,was found in the transverse *** endoscopic snare resection was performed without complication. Histological examination revealed the tumor consisted of plump neoplastic cells with abundant granular eosinophilic cytoplasm containing acidophilic periodic acid Schiff- positive,diastase-resistant *** analysis showed the tumor cells expressed S-100 protein and neuron-specific ***,the resected tumor was diagnosed as a *** GCTs are usually benign,endoscopic resection constitutes an easy and safe treatment. Colonoscopists should consider the possibility of GCT in the differential diagnosis of submucosal tumors of the colon.

关键词： Adenocarcinoma Colon Colonic Neoplasms Humans Intestinal Mucosa Male Middle Aged

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Relationship between insulin resistance, obesity and serum prostate-specific antigen levels in healthy men

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Asian Journal of Andrology 2010年第3期12卷 400-404,I0011页

作者： June Hyun Han Yong Taec Lee Kyung Won Kwak seung Hyun Ahn In Ho Chang Soon Chul Myung seung Young Oh Yong-Seong Lee Wonyong Kim Young-Woo Jin Tae-In Choi Sook hee Sung Department of Urology KEPCO Medical Foundation Hanil General Hospital Seou1132-703 Korea Department of Urology Chung-Ang University Hospital Seoul 140-757 Korea Department of Urology Hyundae General Hospital Namyangju 472-865 Korea Department of Urology Hallym University Hangang Sacred Heart Hospital Seoul 150-719 Korea Department of Microbiology College of Medicine Chung-Ang University Seoul 156- 756 Korea Radiation Health Research Institute Korea Hydro ＆ Nuclear Power Co. LTD Seoul 132-703 Korea

The purpose of this study was to determine the relationship between insulin resistance, obesity and serum prostate-specific antigen （PSA） levels in healthy men with serum PSA level below 4 ng mL-1. The men included in the study cohort were 11 827 healthy male employees of the Korea Hydro and Nuclear Power Co., LTD who had undergone medical checkups including fasting glucose, fasting insulin and serum PSA between January 2003 and December 2008. Insulin resistance was calculated by homeostasis model assessment （HOMA [fasting glucose × fasting insulin]/22.5） and quantitative insulin sensitivity check index （QUICK/; 1/[log （fasting insulin）＋ log （fasting glucose）]）. Age-adjusted body mass index （BMI） was significantly increased according to increasing quartile of insulin resistance as determined by HOMA and QUICKI, respectively, in analysis of variance （ANOVA） test and Duncan＇s multiple comparison test （P 〈 0.001）, but age-adjusted serum PSA concentration was significantly decreased according to increasing quartile of insulin resistance as determined by HOMA and QUICK/（P 〈 0.001）. Age, BMI, insulin resistance by HOMA or QUICK/were significantly independent variables to serum PSA level in a multivariate linear regression analysis （P 〈 0.001）. Insulin resistance was a significant independent variable to serum PSA level along with BMI. Insulin resistance and BMI were negatively correlated with serum PSA level in healthy men. Insulin resistance was positively correlated with BMI.

关键词： body mass index insulin resistance metabolic syndrome X obesity prostate-specific antigen

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