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Modified Laser Speckle Imaging with Adaptive Window

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Journal of Measurement Science and Instrumentation 2010年第3期1卷 238-241页

作者： Ho-young JIN hyun-chool shin Kab-mun CHA Ki-won RHEE Nitish Thakor Soongsil University Seoul 156-743 Korea Johrls Hopkins University Baltimore 21218 USA

激光点缀的优点之一正在检测通过图象处理微脉管。这份报纸建议为激光点缀处理方法的一幅新图象，适应地在空格处理激光点缀图象的适应窗口方法。常规固定窗户方法的劣势是它不管目标区域使用一样的窗户尺寸。内在地，激光点缀包含不希... 详细信息

激光点缀的优点之一正在检测通过图象处理微脉管。这份报纸建议为激光点缀处理方法的一幅新图象，适应地在空格处理激光点缀图象的适应窗口方法。常规固定窗户方法的劣势是它不管目标区域使用一样的窗户尺寸。内在地，激光点缀包含不希望得到的噪音。因此一扇大窗户对移开噪音有用，但是它导致图象的低分辨率。否则，一扇小窗户可以检测微脉管但是它在噪音有限制移动。克服这宗交易，适应窗口方法的概念最新被介绍给常规激光点缀图象分析。另外，修改适应窗户方法适用于另外的选择图象。我们以图象质量和处理复杂性把常规激光点缀对比分析(LASCA ) 和它的变体与建议方法作比较。而且比较，伴随的变化选择图象的结果也被比较了。

关键词：自适应窗口激光散斑图像处理方法成像改性散斑噪声自适应处理图像分辨率

Risk of sedation for diagnostic esophagogastroduodenoscopy in obstructive sleep apnea patients

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World Journal of Gastroenterology 2013年第29期19卷 4745-4751页

作者： Jae Myung Cha Jung Won Jeun Kwan Mi Pack Joung Il Lee Kwang Ro Joo hyun Phil shin Won-Chul shin Department of Internal Medicine Kyung Hee University Hospital at Gang Dong Seoul 134-727 South Korea Department of Neurology Kyung Hee University Hospital at Gang Dong Seoul 134-727 South Korea

AIM: To investigate whether patients with obstructive sleep apnea (OSA) are at risk of sedation-related complications during diagnostic esophagogastroduodenoscopy (EGD). METHODS: A prospective study was performed in consecutive patients with OSA, who were confirmed with full-night polysomnography between July 2010 and April 2011. The occurrence of cardiopulmonary complications related to sedation during diagnostic EGD was compared between OSA and control groups. RESULTS: During the study period, 31 patients with OSA and 65 controls were enrolled. Compared with the control group, a higher dosage of midazolam was administered (P = 0.000) and a higher proportion of deep sedation was performed (P = 0.024) in the OSA group. However, all adverse events, including sedation fail-ure, paradoxical responses, snoring or apnea, hypoxia, hypotension, oxygen or flumazenil administration, and other adverse events were not different between the two groups (all P > 0.1). Patients with OSA were not predisposed to hypoxia with multivariate logistic regression analysis (P = 0.068). CONCLUSION: In patients with OSA, this limited sized study did not disclose an increased risk of cardiopulmonary complications during diagnostic EGD under sedation.

关键词： Conscious sedation Obstructive sleep apnea Endoscopy Complications Safety

Monocarboxylate transporter 4 plays a significant role in the neuroprotective mechanism of ischemic preconditioning in transient cerebral ischemia

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Neural Regeneration Research 2015年第10期10卷 1604-1611页

作者： Seongkweon Hong Ji Yun Ahn Geum-Sil Cho In Hye Kim Jeong Hwi Cho Ji Hyeon Ahn Joon Ha Park Moo-Ho Won Bai Hui Chen Bich-Na shin hyun-Jin Tae Seung Min Park Jun Hwi Cho Soo Young Choi Jae-Chul Lee Department of Surgery School of Medicine Kangwon National University Department of Emergency Medicine Sacred Heart Hospital College of Medicine Hallym University Department of Emergency Medicine School of Medicine Kangwon National University Department of Neuroscience College of Medicine Korea University Department of Neurobiology School of Medicine Kangwon National University Department of Physiology College of Medicine Hallym University Department of Biomedical Science Research Institute of Bioscience and Biotechnology Hallym University

Monocarboxylate transporters（MCTs）, which carry monocarboxylates such as lactate across biological membranes, have been associated with cerebral ischemia/reperfusion process. In this study, we studied the effect of ischemic preconditioning（IPC） on MCT4 immunoreactivity after 5 minutes of transient cerebral ischemia in the gerbil. Animals were randomly designated to four groups（sham-operated group, ischemia only group, IPC ＋ sham-operated group and IPC ＋ ischemia group）. A serious loss of neuron was found in the stratum pyramidale of the hippocampal CA1 region（CA1）, not CA2/3, of the ischemia-only group at 5 days post-ischemia; however, in the IPC ＋ ischemia groups, neurons in the stratum pyramidale of the CA1 were well protected. Weak MCT4 immunoreactivity was found in the stratum pyramidale of the CA1 in the sham-operated group. MCT4 immunoreactivity in the stratum pyramidale began to decrease at 2 days post-ischemia and was hardly detected at 5 days post-ischemia; at this time point, MCT4 immunoreactivity was newly expressed in astrocytes. In the IPC ＋ sham-operated group, MCT4 immunoreactivity in the stratum pyramidale of the CA1 was increased compared with the sham-operated group, and, in the IPC ＋ ischemia group, MCT4 immunoreactivity was also increased in the stratum pyramidale compared with the ischemia only group. Briefly, present findings show that IPC apparently protected CA1 pyramidal neurons and increased or maintained MCT4 expression in the stratum pyramidale of the CA1 after transient cerebral ischemia. Our findings suggest that MCT4 appears to play a significant role in the neuroprotective mechanism of IPC in the gerbil with transient cerebral ischemia.

关键词： nerve regeneration monocarboxylate transporters ischemic preconditioning ischemia/ reperfusion injury hippocampus CA1 pyramidal neurons neural regeneration

Methylsulfonylmethane suppresses hepatic tumor development through activation of apoptosis

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World Journal of Hepatology 2014年第2期6卷 98-106页

作者： Joo-hyun Kim Hye-Jun shin Hye-Lin Ha Young-Ho Park Tae-Ho Kwon Mi-Ra Jung hyung-Bae Moon Eun-Sang Cho Hwa-Young Son Dae-Yeul Yu Aging Research Center Korea Research Institute of Bioscience and Biotechnology College of Veterinary Medicine Chungnam National University Wonkwang University College of Medicine

AIM:To investigate the effect of methylsulfonylmethane(MSM), recently reported to have anti-cancer effects, in liver cancer cells and transgenic mice. METHODS: Three liver cancer cell lines, HepG2, Huh7-Mock and Huh7-H-rasG12V, were used. Cell growth was measured by Cell Counting Kit-8 and soft agar assay. Western blot analysis was used to detect caspases, poly(ADP-ribose) polymerase(PARP), and B-cell lymphoma2(Bcl-2) expressions. For in vivo study, we administered MSM to H-ras12V transgenic mice for 3 mo. RESULTS: MSM decreased the growth of HepG2, Huh7-Mock and Huh7-H-rasG12V cells in a dose-dependent manner. That was correlated with significantly increased apoptosis and reduced cell numbers in MSM treated cells. Cleaved caspase-8, cleaved caspase-3 and cleaved PARP were remarkably increased in the liver cancer cells treated with 500 mmol/L of MSM; however, Bcl-2 was slightly decreased in 500 mmol/L. Liver tumor development was greatly inhibited in the H-ras12V transgenic mice treated with MSM, compared to control, by showing reduced tumor size and number. Cleaved PARP was significantly increased in non-tumor treated with MSM compared to control. CONCLUSION: Liver injury was also significantly attenuated in the mice treated with MSM. Taken together, all the results suggest that MSM has anti-cancer effects through inducing apoptosis in liver cancer.

关键词： Methylsulfonylmethane Anti-cancer effects Liver cancer cells Transgenic mice Hepatic tumorigenesis

Pretreated Oenan the Javanica extract increases anti-inflammatory cytokines, attenuates gliosis, and protects hippocampal neurons following transient global cerebral ischemia in gerbils

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Neural Regeneration Research 2019年第9期14卷 1536-1543页

作者： Joon Ha Park In Hye Kim Ji Hyeon Ahn YooHun Noh Sung-Su Kim Tae-Kyeong Lee Jae-Chul Lee Bich-Na shin Tae Heung Sim hyun Sam Lee Jeong Hwi Cho In Koo Hwang Il Jun Kang Jong Dai Kim Moo-Ho Won Department of Biomedical Science and Research Institute for Bioscience and Biotechnology Hallym UniversityChuncheonGangwonRepublic of Korea Famenity Company GwacheonGeyonggiRepublic of Korea Department of Neurobiology School of MedicineKangwon National UniversityChuncheonGangwonRepublic of Korea Danchunok Company ChuncheonGangwonRepublic of Korea Department of Histology College of Veterinary MedicineChonbuk National UniversityIksanJeollabuk.doRepublic of Korea Department of Anatomy and Cell Biology College of Veterinary Medicineand Research Institute for Veterinary ScienceSeoul National UniversitySeoulRepublic of Korea Department of Food Science and Nutrition Hallym UniversityChuncheonGangwonRepublic of Korea Division of Food Biotechnology School of BiotechnologyKangwon National UniversityChuncheonGangwonRepublic of Korea

Recently,we have reported that Oenanthe javanica extract(OJE)displays strong neuroprotective effect against ischemic damage after transient global cerebral ***,neuroprotective mechanisms of OJE have not been fully ***,this study investigated the neuroprotection of OJE in the hippocampal CA1 area and its anti-inflammatory activity in gerbils subjected to 5 minutes of transient global cerebral *** treated the animals by intragastrical injection of OJE(100 and 200 mg/kg)once daily for 1 week prior to transient global cerebral *** of OJE was observed by immunohistochemistry for neuronal nuclear antigen and histofluorescence staining for Fluoro-Jade *** of glial fibrillary acidic protein and ionized calcium-binding adapter molecule 1 was done for astrocytosis and microgliosis,*** investigate the neuroprotective mechanisms of OJE,we performed immunohistochemistry of tumor necrosis factor-alpha and interleukin-2 for pro-inflammatory function and interleukin-4 and interleukin-13 for anti-inflammatory *** we treated the animals by intragastrical administration of 200 mg/kg of OJE,hippocampal CA1 pyramidal neurons were protected from transient global cerebral ischemia and cerebral ischemia-induced gliosis was inhibited in the ischemic hippocampal CA1 *** also found that interleukin-4 and-13 immunoreactivities were significantly increased in pyramidal neurons of the ischemic CA1 area after OJE pretreatment,and the increased immunoreactivities were sustained in the CA1 pyramidal neurons after transient global cerebral ***,OJE pretreatment did not increase interleukin-2 and tumor necrosis factor-alpha immunoreactivities in the CA1 pyramidal *** findings suggest that pretreatment with OJE can protect neurons and attenuate gliosis from transient global cerebral ischemia via increasing expressions of interleukin-4 *** experimental plan of this study was rev

关键词： Oenanthe javanica extract transient global cerebral ischemia hippocampus ischemic damage cerebral ischemia neuroprotection glial activation pro-inflammatory cytokines anti-inflammatory cytokines inflammation neural regeneration

Delayed hippocampal neuronal death in young gerbil following transient global cerebral ischemia is related to higher and longer-term expression of p63 in the ischemic hippocampus

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Neural Regeneration Research 2015年第6期10卷 944-950页

作者： Eun Joo Bae Bai Hui Chen Bing Chun Yan Bich Na shin Jeong Hwi Cho In Hye Kim Ji Hyeon Ahn Jae Chul Lee hyun-Jin Tae Seongkweon Hong Dong Won Kim Jun Hwi Cho Yun Lyul Lee Moo-Ho Won Joon Ha Park Department of Pediatrics Chuncheon Sacred Heart HospitalCollege of MedicineHallym University Department of Physiology College of MedicineInstitute of Neurodegeneration and NeuroregenerationHallym University Institute of Integrative Traditional & Western Medicine Medical CollegeYangzhou University Department of Neurobiology School of MedicineKangwon National University Department of Biomedical Science and Research Institute for Bioscience and Biotechnology Hallym University Department of Surgery School of MedicineKangwon National University Department of Emergency Medicine Chuncheon Sacred Heart HospitalCollege of MedicineHallym University Department of Emergency Medicine School of MedicineKangwon National University

The tumor suppressor p63 is one of p53 family members and plays a vital role as a regulator of neuronal apoptosis in the development of the nervous system. However, the role of p63 in mature neuronal death has not been addressed yet. In this study, we first compared ischemia-induced effects on p63 expression in the hippocampal regions （CA1-3） between the young and adult gerbils subjected to 5 minutes of transient global cerebral ischemia. Neuronal death in the hippocampal CA1 region of young gerbils was significantly slow compared with that in the adult gerbils after transient global cerebral ischemia, p63 immunoreactivity in the hippocampal CA1 pyramidal neurons in the sham-operated young group was significantly low compared with that in the sham-operated adult group, p63 immunoreactivity was apparently changed in ischemic hippocampal CA1 pyramidal neurons in both ischemia-operated young and adult groups. In the ischemia-operated adult groups, p63 immunoreactivity in the hippocampal CA1 pyramidal neurons was significantly decreased at 4 days post-ischemia; however, p63 immunoreactivity in the ischemia-operated young group was significantly higher than that in the ischemia-operated adult group. At 7 days post-ischemia, p63 immunoreactivity was decreased in the hippocampal CA1 pyramidal neurons in both ischemia-operated young and adult groups. Change patterns of p63 level in the hippocampal CA1 region of adult and young gerbils after ischemic damage were similar to those observed in the immunohistochemical results. These findings indicate that higher and longer-term expression of p63 in the hippocampal CA1 region of the young gerbils after ischemia/reperfusion may be related to more delayed neuronal death compared to that in the adults.

关键词： p53 tumor suppressor gene family cerebral ischemia/reperfusion pyramidal neurons CA1 region delayed neuronal death immunohistochemistry western blotting neural regeneration

IL-1β activates p44/42 and p38 mitogen-activated protein kinases via different pathways in cat esophageal smooth muscle cells

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World Journal of Gastroenterology 2006年第5期12卷 716-722页

作者： Tai Sang Lee hyun Ju Song Ji Hoon Jeong Young Sil Min Chang Yell shin Uy Dong Sohn Department of Pharmacology College of PharmacyChung-Ang UniversitySeoul 156-756Republic of Korea Research Laboratory Dong-A Pharmaceuticals Co.LtdKyunggidoRepublic of Korea

AIM:To examine the pathway related to the IL-1β-induced activation of mitogen-activated protein(MAP)kinases in cat esophageal smooth muscle ***:Culture of the esophageal smooth musclecells from cat was *** inhibitors weretreated before applying the IL-1β.Western blot analysiswas performed to detect the expressions of COX,iNOSand MAP ***:In the primary cultured cells,although IL-1βfailed to upregulate the COX and iNOS levels,the levelsof the phosphorylated forms of p44/42 MAP kinase andp38 MAP kinase increased in both concentration-andtime-dependent manner,of which the level of activationreached a maximum within 3 and 18 h,*** pertussis toxin reduced the level of p44/42 MAPkinase *** 51 and genistein alsoinhibited this *** decreased the densityof the p44/42 MAP kinase band to the basal *** C(PKC)was found to play a mediatingrole in the IL-1β-induced p44/42 MAP kinase *** contrast,the activation of p38 MAP kinase wasinhibited only by a pretreatment with forskolin,and wasunaffected by the other ***:Based on these results,IL-1β-inducedp44/42 MAP kinase activation is mediated by the Giprotein,tyrosine kinase,phospholipase C(PLC)*** pathway for p38 MAP kinase phosphorylationis different from that of p44/42 MAP kinase,suggestingthat it piays a different role in the cellular response to IL-1β.

关键词： IL-1β p44 p42 p38 蛋白激酶食管平滑肌肌肉细胞

Helicobacter pylori eradication with moxifloxacin-containing therapy following failed first-line therapies in South korea

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World Journal of Gastroenterology 2014年第22期20卷 6932-6938页

作者： Kyu Keun Kang Dong Ho Lee Dong hyun Oh Hyuk Yoon Cheol Min shin Young Soo Park Nayoung Kim hyun Chae Jung Department of Internal Medicine Seoul National University Bundang HospitalSeongnamGyeongi-do 463-707South Korea Department of Internal Medicine Seoul National University College of MedicineSeoul 100-744South Korea

AIM:To investigate moxifloxacin-containing triple therapy as second-line treatment for Helicobacter pylori(***)infection following failed first-line ***:The sample included 312 patients for whom first-line treatment failed between January 2008and May 2013;27 patients were excluded,and a total of 285 patients received 7-or 14-d moxifloxacincontaining triple therapy as second-line treatment for *** *** line regimens included 7-d standard triple(n=172),10-d bismuth-containing quadruple(n=28),14-d concomitant(n=37),or14-d sequential(n=48)*** status was evaluated using 13C-urea breath testing 4 wk later,aftercompletion of the *** primary outcome was the *** eradication rate analyzed using intentionto-treat(ITT)and per protocol(PP)*** secondary outcome was the occurrence of serious adverse *** and clinical factors were analyzed using Student’s t-tests and Pearson’sχ2 tests according to first-and second-line regimens.A P value of less than 0.05 was considered statistically ***:The eradication rate of moxifloxacincontaining triple therapy was 68.4%(ITT;95%CI:62.8-73.5)and 73.9%(PP;95%CI:68.3-78.8).The eradication rate was significantly higher with 14 d compared to 7 d of treatment(77.5%vs 62.5%,P=0.017).Peptic ulcer patients had a higher eradication rate than the patients without ulcers(82.9%vs 70.6%,P=0.046).The demographic and clinical characteristics were not significantly different between the groups according to first-line *** and PP analyses of the moxifloxacin-containing triple therapy indicated the following eradication rates:70.9%(95%CI:63.8-77.2)and 77.2%(95%CI:70.1-83.1)for standard triple;67.9%(95%CI:51.5-84.2)and 67.9%(95%CI:51.5-84.2)for bismuth-containing quadruple;60.4%(95%CI:46.3-73.0)and 70.7%(95%CI:54.0-80.9)for sequential;and 67.6%(95%CI:51.5-80.4)and67.6%(95%CI:51.5-80.4)for concomitant *** were no statistically significant differe

关键词： Fluoroquinolones Helicobacter pylori Dis-ease erad

Experiments on the Integrity and Performance of the Passive Residual Heat Removal System for SMART design Using VISTA-ITL

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Experiments on the Integrity and Performance of the Passive ...