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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 cells. METHODS： Culture of the esophageal smooth muscle cells from cat was prepared. Specific inhibitors were treated before applying the IL-β3. Western blot analysis was performed to detect the expressions of COX, iNOS and MAP kinases. RESULTS： In the primary cultured cells, although IL-β3 failed to upregulate the COX and iNOS levels, the levels of the phosphorylated forms of 1344142 HAP kinase and p38 MAP kinase increased in both concentration- and time-dependent manner, of which the level of activation reached a maximum within 3 and 18 h, respectively. The pertussis toxin reduced the level of p44/42 MAP kinase phosphorylation. Tyrphostin 51 and genistein also inhibited this activation. Neomycin decreased the density of the p44/42 HAP kinase band to the basal level. Phosphokinase C （PKC） was found to play a mediating role in the IL-1β-induced p44/42 MAP kinase activity. In contrast, the activation of p38 MAP kinase was inhibited only by a pretreatment with forskolin, and was unaffected by the other compounds. CONCLUSION： Based on these results, IL-1β-induced p44/42 MAP kinase activation is mediated by the Gi protein, tyrosine kinase, phospholipase C （PLC） and PKC. The pathway for p38 MAP kinase phosphorylation is different from that of p44/42 MAP kinase, suggesting that it plays a different role in the cellular response to IL- 1β.

关键词： IL-1β MAP kinase Esophageal smoothmuscle cells

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Endoscopic repair of delayed stomach perforation caused by penetrating trauma:A case report

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World Journal of Clinical Cases 2021年第5期9卷 1228-1236页

作者： Jae hyun yoon Chung Hwan Jun Jae Pil Han Ji-Woong Yeom Seung-Ku Kang hyun Yi Kook Sung KyuChoi Department of Gastroenterology and Hepatology Chonnam National University Hospital and College of MedicineGwangju 61469South Korea Department of Internal Medicine Mokpo Hankook HospitalMokpo 58643South Korea Department of Surgery Mokpo Hankook HospitalMokpo 58643South Korea Department of Cardiothoracic Surgery Mokpo Hankook HospitalMokpo 58643South Korea Department of Nursing Chonnam National University Hospitaland College of NursingGwangju 61469South Korea

BACKGROUND Primary endoscopic closure of a perforated gastric wall during endoscopic procedures is mostly effective and well-tolerated;however,there are very few studies on the efficacy of endoscopic management of delayed traumatic gastric ***,we report a novel case of a patient who was successfully treated for delayed traumatic stomach perforation using an alternative endoscopic *** SUMMARY A 39-year-old woman presented with multiple penetrating traumas in the back and left abdominal *** imaging studies revealed left diaphragmatic disruption and peri-splenic hemorrhage without gastric *** emergency primary repair of the disrupted diaphragm with omental reduction and suturing of the lacerated lung was performed;however,delayed free perforation of the gastric wall was noted on computed tomography after 3 *** an emergency abdominal surgery for the primary repair of the gastric wall,re-perforation was noted 15 d *** high risk associated with re-surgery prompted an endoscopic intervention using 2 endoloops and 11 endoscopic clips using a novel modified purse-string suture *** free perforated gastric wall was successfully repaired without additional surgery or *** patient was discharged after 46 d without any *** Endoscopic closure with endoloops and clips can be a useful therapeutic alternative to re-surgery for delayed traumatic gastric perforation.

关键词： Surgical endoscopy Trauma Stomach Re-perforation Endoloop Case report

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Malignant mesothelioma of the greater omentum mimicking omental infarction:A case report

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World Journal of Gastroenterology 2009年第38期15卷 4856-4859页

作者： Min-Kee Shin Ok-Jae Lee Chang-yoon Ha hyun-Joo Min Tae-Hyo Kim Department of Internal Medicine & Institute of Health Science Gyeongsang National University School of Medicine

Mesothelioma develops most commonly in the pleura, and less frequently in the peritoneum. Usually, it manifests as diffuse peritoneal thickening and multiple nodules, and rarely as a solitary mass. We report a rare case of primary malignant mesothelioma of the greater omentum, which mimicked omental infarct. A 54-year-old Korean man was admitted because of severe abdominal pain of sudden onset. A tender mass with indistinct margins was palpated in the upper abdomen. Abdominal ultrasound and computed tomography showed an ill- def ined mass in the greater omentum and little ascites in the peri-hepatic space, and neutrophil-dominant exudates were documented on paracentesis. Intravenous antibiotics and analgesics were given for omental infarction with superimposed infection, which resulted in symptomatic improvement. The imaging studies after a week revealed a growing mass and ascites. Laparoscopic surgery was performed and an 8 cm×3.3 cm greater omental mass was found, with multiple small nodules on the peritoneum, diaphragm, and pelvic cavity wall. Histological examination showed proliferating malignant epithelioid cells that stained strongly for calretinin, which was compatible with malignant mesothelioma. We recommend that primary omental mesothelioma should be included in the differential diagnosis of patients with omental infarction, despite its rarity.

关键词： Infarction Mesothelioma, Omentum

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Acute myopathy associated with liver cirrhosis

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World Journal of Gastroenterology 2006年第14期12卷 2254-2258页

作者： Ok-Jae Lee Jee-Hyang yoon Eun-Jeong Lee hyun-Jin Kim Tae-Hyo Kim Department of Internal Medicine and Gyeongsang Institute of Health Science Gyeongsang National University College of Medicine JinjuRepublic of Korea

AIM： Many cirrhotic patients have muscular symptoms and rhabdomyolysis. However, myopathy associated with liver cirrhosis has not been established as a disease entity. We evaluated the clinical significance of acute myopathy associated with liver cirrhosis. METHODS： We retrospectively reviewed the medical records of 5440 cirrhotic patients who had been admitted to Gyeongsang National University Hospital from August 1997 to January 2003. Among these, 99 developed acute myopathies, and they were analyzed with respect to clinical and laboratory parameters, and outcomes. RESULTS： The Child-Pugh classification at the time of myopathy onset was A in 3（3.1%） cases, B in 33（33.3%）, and C in 63 （63.6%）. Infection was identified as the most predisposing factor to myopathy. Fifty percent of 18 idiopathic cases who were tested for influenza antibody were positive. Forty-two of the 99 cases were complicated by acute renal failure, and 25 （59.5%） of these expired. Apart from 6 cases lost to follow-up, 64 of 93 recovered, giving a mortality rate of 31.2%. Mortality was higher in Child-Pugh class C than in B or A. CONCLUSION： Acute myopathy can develop as a serious complication in liver cirrhosis. Its frequency, severity and mortality depend on underlying liver function, and are higher in decompensated liver cirrhosis. Influenza should be considered as an etiologic factor in idiopathic cases. It is proposed that acute myopathy associated with liver cirrhosis be called ＇hepatic myopathy; and that careful monitoring for hepatic myopathy is necessary in the patients with advanced liver cirrhosis.

关键词： Myopathy Rhabdomyolysis Liver cirrhosis

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Congenital retinal macrovessel with intracranial venous malformation in a pediatric patient: a case report

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International Journal of Ophthalmology(English edition) 2022年第7期15卷 1214-1216页

作者： Hyeon Jin Park Sook hyun yoon Sook Young Kim Donghun Lee Department of Ophthalmology Daegu Catholic University School of MedicineDaegu 42472Republic of Korea

Dear Editor,Congenital retinal macrovessel (CRM) is defined as an abnormal large retinal vessel that encircles the foveal avascular zone (FAZ).Since the first description of a large aberrant vessel crossing the macula by Mauthnerin 1868,there have been several case reports about *** recently,Pichi et alreported clinical manifestations and multimodal retinal imaging of 49 eyes with *** their study,they had identified an association between macrovessel in the retina and venous anomalies of the brain and they emphasized the importance of systemic workups including brain magnetic resonance imaging (MRI).

关键词： venous Congenital malformation

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Keystone design perforator island flap in facial defect reconstruction

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World Journal of Clinical Cases 2020年第10期8卷 1832-1847页

作者： Soo Yeon Lim Chi Sun yoon hyun Gun Lee Kyu Nam Kim Department of Plastic and Reconstructive Surgery Konyang University HospitalUniversity of Konyang College of MedicineMyunggok Medical Research CenterDaejeon 35365South Korea Department of Plastic and Reconstructive Surgery Wonkwang University HospitalWonkwang University School of MedicineIksan 54538South Korea

Facial defect coverage is a common subject in the field of reconstructive *** are many methods for facial defect reconstruction,and reconstructive surgeons should choose the most appropriate method on a case-by-case basis to achieve both functional and aesthetic *** various options for facial reconstruction,the local flap technique is considered the best reconstructive modality to provide good tissue matches of color and texture,which is consistent with the ideal goal of reconstruction(replacement of like-with-like).Keystone design perforator island flap(KDPIF),devised by Behan in 2003,has been applied to various fields of reconstructive surgery in the past decade due to its design simplicity,robust vascular supply,and *** studies have reported KDPIF reconstruction of facial defects,such as large parotid defects,small-to-moderate nasal defects,and eyelid ***,KDPIF has been used relatively less in facial defects than in other body regions,such as the trunk and *** purpose of this review is to provide an organized overview of facial KDPIF reconstruction including the classification of KDPIF,modifications,physiology,mechanism of flap movement,consideration of facial relaxed skin tension lines and aesthetics,surgical techniques,clinical applications,and precautions for successful execution of KDPIF reconstruction.

关键词： Keystone design perforator island flap Reconstructive surgery Facial defects Aesthetics Plastic surgery Flap surgery

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SnO2@Co3O4 hollow nano-spheres for a Li-ion battery anode with extraordinary performance

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Nano Research 2014年第8期7卷 1128-1136页

作者： Won-Sik Kim yoon Hwa Hong-Chan Kim Jong-hyun Choi Hun-Joon Sohn Seong-Hyeon Hong Department of Materials Science and Engineering and Research Institute of Advanced Materials Seoul National University Seoul151-744 Republic of Korea

SnO2@Co3O4 hollow nano-spheres have been prepared using the template-based sol-gel coating technique and their electrochemical performance as an anode for lithium-ion battery （LIB） was investigated. The size of synthesized hollow spheres was about 50 nm with the shell thickness of 7-8 nm. The fabricated SnO2@Co3O4 hollow nano-sphere electrode exhibited an extraordinary reversible capacity （962 mAh-g-1 after 100 cycles at 100 mA-g-1）, good cyclability, and high rate capability, which was attributed to the Co-enhanced reversibility of the Li20 reduction reaction during cycling.

关键词： hollow sphere lithium-ion battery anode SnO2 Co3O4

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Cytomegalovirus colitis induced segmental colonic hypoganglionosis in an immunocompetent patient: A case report

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World Journal of Clinical Cases 2021年第20期9卷 5631-5636页

作者： Ban Seok Kim Seon-Young Park Dong hyun Kim Nah Ihm Kim Jae hyun yoon Jae Kyun Ju Chang Hwan Park hyun Soo Kim Sung Kyu Choi Department of Gastroenterology Chonnam National University HospitalGwangju 501-757South Korea Department of Pathology Chonnam National University HospitalGwangju 501-757South Korea Department of Surgery Chonnam University HospitalGwangju 501-757South Korea

BACKGROUND Cytomegalovirus(CMV)colitis is usually seen in immunocompromised patients with risk factors such as human immunodeficiency virus infection,solid organ transplant,inflammatory bowel disease,or ***,many clinicians usually do not consider the possibility of CMV colitis in immunocompetent *** reported a rare case of segmental colonic hypoganglionosis associated with CMV colitis in an immunocompetent *** SUMMARY A 48-year-old woman with no underlying disease was admitted to our hospital for severe abdominal pain and *** tomography of the abdomen showed diffuse dilatation of the small intestine and the entire *** sigmoidoscopic findings and result of polymerase chain reaction(PCR)for CMV revealed the compatible findings of CMV colitis,the patient was treated with intravenous *** treatment,sigmoidoscopic findings and CMV PCR results *** the patient continued to suffered from *** months after the initial admission,patient visited the emergency department with severe abdominal pain and imaging revealed aggravation of fecal impaction and bowel *** performed subtotal colectomy to control patient’s *** examination of the resected specimen showed significantly reduced number of mature ganglion cells in the sigmoid colon compared to that in the proximal *** Our case demonstrates that CMV colitis can develop even in patients with no other underlying disease,and that CMV colitis can be one of the causes for developing colonic hypoganglionosis.

关键词： Colonic pseudo-obstruction Colitis Cytomegalovirus Ganglia Case report

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Mononeuropathy multiplex associated with systemic vasculitis:A case report

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World Journal of Clinical Cases 2021年第7期9卷 1741-1747页

作者： hyun Jun Chae Jung Woo Kim Yae Lim Lee Jeong Hwan Park Sang yoon Lee Department of Rehabilitation Medicine Seoul National University College of MedicineSeoul National University HospitalSeoul 07061South Korea Department of Pathology Seoul National University College of MedicineSMG-SNU Boramae Medical CenterSeoul 07061South Korea Department of Rehabilitation Medicine Seoul National University College of MedicineSMG-SNU Boramae Medical CenterSeoul 07061South Korea

BACKGROUND Vasculitis,a systemic disorder with inflammation of blood vessel walls,can develop broad spectrum of signs and symptoms according to involvement of various organs,and therefore,early diagnosis of vasculitis is *** herein describe a patient who developed a special case of systemic vasculitis with mononeuropathy multiplex,rectal perforation and antiphospholipid syndrome(APS)presented with pulmonary *** SUMMARY A 61-year-old woman visited hospital with complaints of myalgia and occasional *** was initially diagnosed as proctitis and treated with antibiotics,however,there was no *** addition,she also complained right foot drop with hypesthesia,and left 2^(nd) and 3^(rd) finger tingling *** underwent nerve conduction study for evaluation,and it revealed sensorimotor polyneuropathy in the left arm and bilateral *** sural nerve biopsy strongly suggested vasculitic *** on nerve biopsy and clinical manifestation,she was diagnosed with vasculitis and treated with immunosuppressive *** treatment,sudden rectal perforation and pulmonary thromboembolism occurred,and further laboratory study suggested probable concomitant *** Hartmann operation was performed for rectal perforation,and anti-coagulation therapy was started for *** few cycles of immunosuppressive therapy,tingling sensation and weakness in her hand and foot had been partially recovered and vasculitis was considered to be *** Vasculitis can be presented with a variety of signs and symptoms,therefore,clinicians should always consider the possibility of diagnosis.

关键词： Systemic Vasculitis Peripheral nervous system diseases Mononeuropathies Antiphospholipid syndrome Pulmonary embolism Case report

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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 (H. pylori) infection following failed first-line treatment.

关键词： Fluoroquinolones Helicobacter pylori Disease eradication Drug resistance Second-line

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