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Evaluating the benefit of adjuvant chemotherapy in patients with ypT0-1 rectal cancer treated with preoperative chemoradiotherapy

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World Journal of Gastrointestinal Surgery 2021年第9期13卷 1000-1011页

作者： Ye Won Jeon In Ja Park Jeong Eun Kim jin-Hong Park Seok-Byung lim Chan Wook Kim Yong Sik yoon Jong Lyul Lee Chang Sik Yu jin Cheon Kim Department of Surgery Asan Medical Center and University of Ulsan College of MedicineSeoul 05505South Korea Department of Colon and Rectal Surgery Asan Medical Center and University of Ulsan College of MedicineSeoul 05505South Korea Department of Oncology Asan Medical Center and University of Ulsan College of MedicineSeoul 05505South Korea Department of Radiation Oncology Asan Medical Center and University of Ulsan College of MedicineSeoul 05505South Korea

BACKGROUND Adjuvant chemotherapy(ACTx)is recommended in rectal cancer patients after preoperative chemoradiotherapy(PCRT),but its efficacy in patients in the early post-surgical stage who have a favorable prognosis is *** To evaluate the long-term survival benefit of ACTx in patients with ypT0–1 rectal cancer after PCRT and surgical *** We identified rectal cancer patients who underwent PCRT followed by surgical resection at the Asan Medical Center from 2005 to *** with ypT0–1 disease and those who received ACTx were *** 5-year overall survival(OS)and 5-year recurrence-free survival(RFS)were analyzed according to the status of the *** Of 520 included patients,413 received ACTx(ACTx group)and 107 did not(no ACTx group).No significant difference was observed in 5-year RFS(ACTx group,87.9%vs no ACTx group,91.4%,P=0.457)and 5-year OS(ACTx group,90.5%vs no ACTx group,86.2%,P=0.304)between the *** stage was associated with RFS and OS in multivariate analysis[hazard ratio(HR):2.57,95%confidence interval(CI):1.07–6.16,P=0.04 and HR:2.27,95%CI:1.09–4.74,P=0.03,respectively].Furthermore,ypN stage was associated with RFS and OS(HR:4.74,95%CI:2.39–9.42,P<0.00 and HR:4.33,95%CI:2.20–8.53,P<0.00,respectively),but only in the radical resection *** Oncological outcomes of patients with ypT0–1 rectal cancer who received ACTx after PCRT showed no improvement,regardless of the radicality of *** trials are needed to evaluate the efficacy of ACTx in these group of patients.

关键词： Rectal neoplasm Adjuvant chemotherapy ypT0-1 Radical resection Local excision

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Arecoline inhibits catecholamine release from perfused rat adrenal gland

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Acta Pharmacologica Sinica 2006年第1期27卷 71-79页

作者： Dong-yoon lim II-sik KIM Department of Pharmacology,College of Medicine,Chosun University,Gwangju 501-759,Korea Department of Pharmacology College of Medicine Chosun University Gwangju Korea

Aim:To study the effect of arecoline,an alkaloid isolated from Areca catechu,onthe secretion of catecholamines (CA) evoked by cholinergic agonists and themembrane depolarizer from isolated perfused rat adrenal ***:Adrenalglands were isolated from male Sprague-Dawley *** adrenal glands wereperfused with Krebs bicarbonate solution by means of a peristaltic *** CAcontent of the perfusate was measured directly using the fluorometric ***:Arecoline (0.1-1.0 mmol/L) perfused into an adrenal vein for 60 min pro-duced dose-and time-dependent inhibition in CA secretory responses evoked byacetylcholine (ACh) (5.32 mmol/L),1.1-dimethyl-4-phenyl piperazinium iodide(DMPP) (100μmol/L for 2 min) and 3-(m-choloro-phenyl-carbamoyl-oxy)-2-butynyltrimethyl ammonium chloride (McN-A-343)(100μmol/L for 2 min).However,lowerdoses of arecoline did not affect CA secretion of high K~+(56 mmol/L);higherdoses greatly reduced CA secretion of high K~+.Arecoline also failed to affectbasal catecholamine ***,in adrenal glands loaded with arecoline(0.3 mmol/L),CA secretory response evoked by Bay-K-8644 (10μmol/L),an activa-tor of L-type Ca2+channels,was markedly inhibited,whereas CA secretion bycyclopiazonic acid(10μmol/L),an inhibitor of cytoplasmic Ca2+-ATPase,was *** (30μmol/L),which was perfused into the adrenal gland for 60min,however,initially enhanced ACh-evoked CA secretory *** timeelapsed,these responses became more inhibited,whereas the initially enhancedhigh K~+-evoked CA release *** secretion evoked by DMPP and McN-A-343 was significantly depressed in the presence of ***:Arecoline dose-dependently inhibits CA secretion from isolated perfused rat ad-renal gland evoked by activation of cholinergic *** lower doses arecolinedoes not inhibit CA secretion through membrane depolarization,but at largerdoses it *** inhibitory effect of arecoline may be mediated by blocking thecalcium inf

关键词： arecoline catecholamine secretion adrenal gland nicotine

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Cumulative incidence and risk factors for pouch adenomas associated with familial adenomatous polyposis following restorative proctocolectomy

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World Journal of Gastroenterology 2022年第30期28卷 4152-4162页

作者： Hyo Seon Ryu Chang Sik Yu Young Il Kim Jong Lyul Lee Chan Wook Kim Yong Sik yoon In Ja Park Seok-Byung lim jin Cheon Kim Division of Colon and Rectal Surgery Department of SurgeryUniversity of Ulsan College of MedicineAsan Medical CenterSeoul 05505South Korea

BACKGROUND The emergence of restorative total proctocolectomy has significantly reduced the lifetime colorectal cancer risk associated with familial adenomatous polyposis(FAP).However,adenomas may develop in the ileal pouch over time and may even progress to *** evaluated the cumulative incidence,time to development,and risk factors associated with ileal pouch *** To evaluate the cumulative incidence,time to development,and risk factors associated with pouch *** In this retrospective,observational study conducted at a tertiary center,95 patients with FAP who underwent restorative proctocolectomy at our center between 1989 and 2018 were consecutively *** mean follow-up period was 88 *** Pouch adenomas were found in 24(25.3%)patients,with a median time of 52 mo to their first *** adenomas were detected in most patients(95.9%).There were no high-grade dysplasia or *** the 24 patients with pouch adenomas,13 had all detected adenomas *** the 13 patients who underwent complete adenoma removal,four(38.5%)developed *** 11(45.8%)patients with numerous polyps within the pouch,seven(63.6%)exhibited progression of pouch *** cumulative risks of pouch adenoma development at 5,10,and 15 years after pouch surgery were 15.2%,29.6%,and 44.1%,*** colorectal polyposis(with more than 1000 polyps)was a significant risk factor for pouch adenoma development(hazard ratio,2.49;95% confidence interval:1.04-5.96;P=0.041).CONCLUSION Pouch adenomas occur at a fairly high rate in association with FAP after restorative proctocolectomy,and a high colorectal polyp count is associated with pouch adenoma development.

关键词： Adenomatous polyposis coli Familial adenomatous polyposis Adenoma Intestinal polyps Proctocolectomy,restorative Ileal pouch anal anastomosis

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Optic perineuritis as an initial presentation of ocular toxoplasmosis:a case report

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International Journal of Ophthalmology(English edition) 2022年第12期15卷 2043-2046页

作者： Seung Ah Chung Chungwoon Kim Jong yoon lim Yoo-Ri Chung Department of Ophthalmology Ajou University School of MedicineSuwon 16499Republic of Korea The Bright Eye Center Gwangmyeong 14235Republic of Korea

Dear Editor,Ocular toxoplasmosis,caused by Toxoplasma gondii infection,is one of the most common causes of posterior uveitis worldwide[1].It typically manifests as white focal retinitis with overlying vitreous inflammation that results in a chorioretinal scar and associated scotoma[2].However,the diagnosis of ocular toxoplasmosis can be challenging when it presents as an isolated papillitis without other typical signs of retinochoroiditis or vitritis[2].Although optic nerve involvement in ocular toxoplasmosis was present in 5.3%of cases,isolated papillitis was extremely rare(3 eyes out of 926 patients)and was only considered a presumed diagnosis in such cases given the presence of old toxoplasmic retinochoroiditis lesions[3].Few reports have described optic nerve involvement preceding toxoplasmic retinochoroiditis,while perineuritis,an uncommon form of orbital inflammatory disease involving the optic nerve sheath,has not been reported at all[4-5].Herein,we describe a case of ocular toxoplasmosis that initially presented with optic perineuritis followed by typical retinochoroidal *** our knowledge,this is the first case report of ocular toxoplasmosis with perineuritis in an immunocompetent individual.

关键词： ocular diagnosis neuritis

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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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Inhomogeneous lithium-storage reaction triggering the inefficiency of all-solid-state batteries

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Journal of Energy Chemistry 2022年第3期31卷 226-236,I0008页

作者： Jaeyoung Kim Wontae Lee Jangwhan Seok Eunkang Lee Woosung Choi Hyunyoung Park Soyeong Yun Minji Kim Jun lim Won-Sub yoon Department of Energy Science Sungkyunkwan UniversitySuwon 16419South Korea Pohang Accelerator Laboratory Pohang University of Science and TechnologyPohang 37673South Korea

All-solid-state batteries offer an attractive option for developing safe lithium-ion *** the various solid-state electrolyte candidates for their applications,sulfide solid electrolytes are the most suitable owing to their high ionic conductivity and facile ***,their performance is extensively lower compared with those of conventional liquid electrolyte-based batteries mainly because of interfacial reactions between the solid electrolytes and high capacity ***,the kinetic evolution reaction in the composite cathode of all-solid-state lithium batteries has not been actively ***,electrochemical analyses were performed to investigate the differences between the organic liquid electrolyte-based battery and all-solid-state battery *** with electrochemical analyses and synchrotron-based in situ and ex situ X-ray analyses,it was confirmed that inhomogeneous reactions were due to physical *** contacted and/or isolated active material particles account for the inhomogeneously charged regions,which further intensify the inhomogeneous reactions during extended cycles,thereby increasing the polarization of the *** study highlighted the benefits of electrochemo-mechanical integrity for securing a smooth conduction pathway and the development of a reliable homogeneous reaction system for the success of solid-state batteries.

关键词： Liquid electrolyte lithium batteries All-solid-state lithium batteries Ni-rich cathode Synchrotron-based X-ray techniques Inhomogeneous reaction

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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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Devastating complication of negative pressure wound therapy after deep inferior epigastric perforator free flap surgery:A case report

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World Journal of Clinical Cases 2023年第1期11卷 143-149页

作者： SooA lim Dong Yun Lee BumSik Kim Jung Soo yoon Yea Sik Han SuRak Eo Department of Plastic and Reconstructive Surgery DongGuk University Medical CenterGoYang 10326South Korea

BACKGROUND Thermal injuries on free transferred or replanted tissues resulting from loss of sensibility are an infrequent *** require immediate and appropriate management before they progress to an irreversible *** negative pressure wound therapy(NPWT)can prevent wound progression by increasing microcirculation,the inappropriate application of NPWT on complicationthreatened transferred and replanted tissues can induce an adverse *** SUMMARY A 48-year-old woman who underwent immediate breast reconstruction with a deep inferior epigastric artery perforator free *** applying a heating pad directly to the flap site,she sustained a deep second to third-degree contact burn over 30%of the transferred flap on postoperative 7 *** the necrotic changes had progressed,we applied an NPWT dressing over the burned area after en-bloc debridement of the transferred tissues on postoperative 21 *** 4 d of NPWT application,the exposed fatty tissues of the flap changed to dry and browncolored necrotic *** further debridement,we noted that the wound gradually reached total necrosis with a collapsed vascular pedicle of deep inferior epigastric *** Although NPWT has been shown to be successful for treating various wound types,the significant risk of NPWT application in short-lasting reconstructed flap wounds after thermal injury should be reminded.

关键词： Negative Pressure Wound Therapy Complications Breast reconstruction Deep inferior epigastric artery perforator Free flap Burn injury Case report

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Effect of Ca addition on the microstructure and mechanical properties of heat-treated Mg-6.0Zn-1.2Y-0.7Zr alloy

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Journal of Magnesium and Alloys 2021年第5期9卷 1636-1648页

作者： Young Gil Jung Wonseok Yang Yong Joo Kim Shae.K.Kim Young Ok yoon Hyunkyu lim Do Hyang Kim Advanced Materials and Process R&D Department Korea Institute of Industrial Technology156Gaetbeol-roIncheon 21999Republic of Korea Department of Metallurgical Engineering Yonsei University50Yonsei-roSeoulSeodaemun-gu 03722Republic of Korea

In this study,the effects of Ca addition on the microstructure,thermal properties,and mechanical properties of a Mg-6.0Zn-1.2Y-0.7Zr(ZWK611)alloy at room temperature and 150℃ were *** an increase in the Ca content,the ignition resistance of the ZWK611 alloy improved and the grains became *** as-cast ZWK611 alloy consisted mainly of the dendriticα-Mg matrix and I-phase(Mg_(3)Zn_(6)Y)at the grain *** the other hand,theτ-(Ca_(2)Mg_(6)Zn_(3))and I-phases were formed in the Ca-added ZWK611 *** fraction of theτ-phase increased with an increase in the Ca *** the solid-solution treatment,these phases remained partially at the grain boundaries of the Ca-added ZWK611 alloys and an additional W-phase(Mg_(3)Zn_(3)Y)was *** phases remaining at the grain boundaries restricted the grain growth through the grain boundary pinning *** aging treatment resulted in the formation of MgZn'precipitates in theα-Mg matrix of the *** precipitates were more uniformly distributed in the Ca-added alloys than in the alloys without ***,the heat treatment-induced precipitation improved the tensile and creep properties of the T6-treated *** T6-treated ZWK611+0.7Ca alloy exhibited the best mechanical properties at room temperature and 150℃ among all the tested alloys.

关键词： Mg-Zn-Y alloys Heat-treatment Precipitate Mechanical properties Thermal analysis

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Long-term pretreatment with proton pump inhibitor and Helicobacter pylori eradication rates

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World Journal of Gastroenterology 2014年第4期20卷 1061-1066页

作者： Seung Bae yoon Jae Myung Park Jong-Yul Lee Myong Ki Baeg Chul-Hyun lim jin Soo Kim Yu Kyung Cho In Seok Lee Sang Woo Kim Myung-Gyu Choi Division of Gastroenterology Department of Internal Medicine College of Medicine The Catholic University of Korea

AIM: To investigate whether proton pump inhibitor (PPI) pretreatment influences Helicobacter pylori eradication rate.

关键词： Proton pump inhibitor Helicobacter pylori Urea breath test Antibiotics Drug resistance

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