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细柱五加叶中羽扇豆烷型三萜成分(英文)

兰州大学学报（自然科学版） 2006年第4期42卷 86-91页

作者：刘向前 chang Seung-Yeup yook chang-soo 中南大学化学化工学院湖南长沙410083 韩国食品医药品安全厅庆熙大学药学系

从细柱五加(Acanthopanax gracilistylus W．W．Smith)叶的热MeOH提取液中分离得到了4个lupane型三萜化合物,根据它们的理化性质和波谱数据,鉴定出其化学结构分别为acankoreagenin(1), 3-epi-betulinic acid 28-O-α-L-rhamnopyranosyl-(1→4)-β-D-glucopyranosyl-(1→6)-β-D-glucopyranosyl ester(2),acantrifoside A(3)和acankoreoside C(4)．其中化合物1是首次从天然植物中分离得到的新化合物,化合物2是首次从五加科植物中分离得到的化合物,且这4个化合物都是第一次从细柱五加中分离得到．

关键词：细柱五加 acankoreagenin acantrifoside A acankoreoside C

Absence of enhancement in a lesion does not preclude primary central nervous system T-cell lymphoma:A case report

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World Journal of Clinical Cases 2024年第2期12卷 374-382页

作者： Chan-Seop Kim Chi-Hoon Choi Kyung Sik Yi yook Kim Jisun Lee chang Gok Woo Young Hun Jeon Department of Radiology Chungbuk National University HospitalChungbuk National University College of MedicineCheongju-si 28644Chungcheongbuk-doSouth Korea Department of Pathology Chungbuk National University HospitalChungbuk National University College of MedicineCheongju-si 28644Chungcheongbuk-doSouth Korea Department of Radiology Seoul National University HosptialSeoul 03080South Korea

BACKGROUND Primary central nervous system lymphoma(PCNSL)is a non-Hodgkin lymphoma that originates in the central nervous system(CNS)and is exclusively limited to the CNS.Although most PCNSLs are diffuse large B-cell lymphomas,primary CNS T-cell lymphomas(PCNSTLs)are rare.PCNSTLs typically demonstrate some degree of enhancement on contrast-enhanced magnetic resonance imaging(MRI).To the best of our knowledge,non-enhancing PCNSTL has not been reported previously.CASE SUMMARY A 69-year-old male presented to the neurology department with complaints of mild cognitive impairment and gradual onset of left lower leg weakness over a span of two weeks.Initial MRI showed asymmetric T2-hyperintense lesions within the brain.No enhancement was observed on the contrast-enhanced T1 image.The initial diagnosis was neuro-Behçet’s disease.Despite high-dose steroid therapy,no alterations in the lesions were identified on initial MRI.The patient’s symptoms deteriorated further.An MRI performed one month after the initial scan revealed an increased lesion extent.Subsequently,brain biopsy confirmed the diagnosis of PCNSTL.The patient underwent definitive combined chemoradiotherapy.However,the patient developed bacteremia and died of septic shock approximately three months after diagnosis.CONCLUSION The absence of enhancement in the lesion did not rule out PCNSTL.A biopsy approach is advisable for pathological confirmation.

关键词： Central nervous system neoplasms Non-Hodgkin Lymphoma T-cell Lymphoma Primary central nervous system lymphoma Primary central nervous system T-cell lymphoma Case report

Immediate secondary rhinoplasty using a folded dermofat graft for resolving complications related to silicone implants: A case report

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World Journal of Clinical Cases 2024年第14期12卷 2426-2430页

作者： Hoon Kim Jong Hyup Kim In chang Koh soo Yeon Lim Department of Plastic and Reconstructive Surgery Konyang University HospitalUniversity of Konyang College of MedicineMyunggok Medical Research InstituteDaejeon 35365South Korea

BACKGROUND Various surgical techniques have been developed to enhance the nose shapes of Asian patients.Silicone implant augmentation rhinoplasty is widely used because it is relatively easy to perform and often yields satisfactory outcomes.However,this technique may lead to complications,including ischemia,necrosis,and over-augmentation.The most appropriate management of these complications,including infection,is immediate implant removal and revision surgery once the accompanying inflammation has healed.Occasionally,the patient may experience distress from nasal deformities during the intervention period.CASE SUMMARY Herein,we describe the case of a patient who underwent a secondary dorsal augmentation,with a folded dermofat graft harvested from the inguinal area and simultaneous implant removal,successfully preventing dimpling of the nasal deformity.CONCLUSION This surgical method can effectively manage implant-related complications following augmentation rhinoplasty using a silicone implant and provide satis-factory patient outcomes.

关键词： Complications Nose deformities Acquired Rhinoplasty Dermofat Surgery Plastic Case report

Porocarcinoma in a palm reconstructed with a full thickness skin graft: A case report

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World Journal of Clinical Cases 2024年第3期12卷 665-670页

作者： Seok Beom Lim Kun Young Kwon Hoon Kim soo Yeon Lim In chang Koh Department of Plastic and Reconstructive Surgery Konyang University Medical CenterKonyang University of College of MedicineDaejeon 35365South Korea Department of Pathology Konyang University Medical CenterKonyang University of College of MedicineDaejeon 35365South Korea

BACKGROUND Porocarcinoma is a rare type of skin cancer that originates from sweat gland tumors.It is an aggressive malignant skin cancer that is difficult to diagnose clinically owing to its rarity and similarity to squamous cell carcinoma(SCC).CASE SUMMARY This case involved a 92-year-old woman,a farmer by profession,presented with an exophytic and verrucous mass on her left palm that had formed 2 years prior and caused chronic pain and frequent bleeding.Initially,the patient was diagnosed with SCC using a punch biopsy;however,a repeat biopsy with addi-tional immunohistochemical tests was performed for porocarcinoma.Ultimately,the patient was diagnosed with porocarcinoma and reconstruction was planned using a full-thickness skin graft.After treatment,the range of motion of the palm was preserved,and the aesthetic outcome was favorable.At 6 mo of follow-up,the patient was satisfied with the outcome.CONCLUSION Porocarcinoma is commonly misdiagnosed as SCC;therefore,clinicians should consider porocarcinomas when evaluating mass-like lesions on the hands.

关键词： Eccrine porocarcinoma Hand defects Reconstructive surgery Sweat gland tumor Skin graft Case report

Surface-modified Ag@Ru-P25 for photocatalytic CO_(2) conversion with high selectivity over CH_(4) formation at the solid–gas interface

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Carbon Energy 2024年第1期6卷 182-196页

作者： Chaitanya B.Hiragond Sohag Biswas Niket SPowar Junho Lee Eunhee Gong Hwapyong Kim Hong soo Kim Jin-Woo Jung chang-Hee Cho Bryan M.Wong Su-Il In Department of Energy Science&Engineering Daegu Gyeongbuk Institute of Science and Technology(DGIST)DaeguRepublic of Korea Department of Chemical&Environmental Engineering Materials Science&Engineering ProgramDepartment of ChemistryDepartment of Physics&AstronomyUniversity of California-RiversideRiversideCaliforniaUSA Department of Physics and Chemistry Daegu Gyeongbuk Institute of Science and Technology(DGIST)DaeguRepublic of Korea NiceScience Corporation DaeguRepublic of Korea

Systematic optimization of the photocatalyst and investigation of the role of each component is important to maximizing catalytic activity and comprehending the photocatalytic conversion of CO_(2) reduction to solar fuels.A surface-modified Ag@Ru-P25 photocatalyst with H_(2)O_(2) treatment was designed in this study to convert CO_(2) and H_(2)O vapor into highly selective CH4.Ru doping followed by Ag nanoparticles(NPs)cocatalyst deposition on P25(TiO_(2))enhances visible light absorption and charge separation,whereas H_(2)O_(2) treatment modifies the surface of the photocatalyst with hydroxyl(–OH)groups and promotes CO_(2) adsorption.High-resonance transmission electron microscopy,X-ray photoelectron spectroscopy,X-ray absorption near-edge structure,and extended X-ray absorption fine structure techniques were used to analyze the surface and chemical composition of the photocatalyst,while thermogravimetric analysis,CO_(2) adsorption isotherm,and temperature programmed desorption study were performed to examine the significance of H_(2)O_(2) treatment in increasing CO_(2) reduction activity.The optimized Ag1.0@Ru1.0-P25 photocatalyst performed excellent CO_(2) reduction activity into CO,CH4,and C2H6 with a~95%selectivity of CH4,where the activity was~135 times higher than that of pristine TiO_(2)(P25).For the first time,this work explored the effect of H_(2)O_(2) treatment on the photocatalyst that dramatically increases CO_(2) reduction activity.

关键词： gas-phase CO_(2) reduction H_(2)O_(2) treatment plasmonic nanoparticles solar fuel photocatalyst surface modification

基于NF-κB信号通路的细柱五加中impressic acid的抗炎作用研究

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中草药 2020年第22期51卷 5781-5787页

作者：肖瑾李小军黄建军高圣权陆昌洙刘向前湖南中医药大学药学院湖南长沙410208 赣南医学院药学院江西赣州341000 中南大学湘雅医学院湖南长沙41001 世明大学韩方食品营养学部韩国堤川27136 庆熙大学药学院韩国首尔13070

目的研究细柱五加Acanthopanax gracilistylus W.W.Smith中impressic acid(IA)对脂多糖(LPS)诱导的小鼠单核巨噬细胞RAW264.7的抗炎作用。方法以LPS诱导RAW264.7细胞建立炎症模型;使用EZ4U细胞增殖与细胞毒性分析试剂盒检测IA对RAW264.7细胞的毒性作用;Griess法测定一氧化氮(NO)水平;ELISA法测肿瘤坏死因子-α(TNF-α)、白介素-1β(IL-1β)水平;RT-PCR法检测TNF-α、IL-1βmRNA表达;Western blotting检测高迁移率族蛋白B1(HMGB1)蛋白表达;ELISA法细胞质和细胞核的核因子-κB(NF-κB)水平。结果Impressic acid可以显著抑制LPS诱导的RAW264.7细胞中TNF-α、IL-1β水平和HMGB1蛋白表达,并抑制NF-κB从细胞质向细胞核的转移(P<0.05、0.01)。结论细柱五加中IA对LPS诱导的RAW264.7细胞具有抗炎作用。

关键词：细柱五加 impressic acid 三萜抗炎高迁移率族蛋白B1 核因子-κB

糙叶五加中三萜皂苷等次生代谢产物的研究及其化学分类学意义（英文）

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天然产物研究与开发 2016年第12期28卷 1903-1910,1942页

作者：王翔李小军李芝张晓丹陆昌洙刘向前湖南中医药大学药学院长沙410208 浙江理工大学生命科学学院杭州310018 庆熙大学药学院

基于化学分类学意义的成分研究，采用多种柱层析手段和波谱学方法，从糙叶五加叶中分离鉴定了23种化合物，包括3种黄酮类物质（1-3）、一个有机酸（4）、16种三萜皂苷（5-20）、一个蒽醌（21）、一个甾体皂苷（22）和一个脑苷N（23）。... 详细信息

基于化学分类学意义的成分研究，采用多种柱层析手段和波谱学方法，从糙叶五加叶中分离鉴定了23种化合物，包括3种黄酮类物质（1-3）、一个有机酸（4）、16种三萜皂苷（5-20）、一个蒽醌（21）、一个甾体皂苷（22）和一个脑苷N（23）。化合物5、6,11、12、14、15、17、19和20为首次从五加属植物中分离得到；化合物8、13和21为首次从五加科中分得。同时基于这些分离所得的次生代谢产物进一步探讨它们在化学分类上的意义。

关键词：五加科糙叶五加三萜皂苷蒽醌黄酮

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小前胡中香豆素类成分研究

天然产物研究与开发 2006年第1期18卷 7-10页

作者：金京玉刘向前陆昌洙朴相勇韩国庆熙大学药学系中南大学化学化工学院制药工程系长沙410083

本文对韩国植物新种小前胡(Angelica czernaeviaKita forma dentate yook)的根部进行了化学成分研究,从中得到了7个香豆素类化合物,利用波谱方法分别鉴定为异欧前胡素(1),川白芷内酯(2),紫花前胡素(3),7-羟基香豆素(4),紫花前胡醇(5),... 详细信息

本文对韩国植物新种小前胡(Angelica czernaeviaKita forma dentate yook)的根部进行了化学成分研究,从中得到了7个香豆素类化合物,利用波谱方法分别鉴定为异欧前胡素(1),川白芷内酯(2),紫花前胡素(3),7-羟基香豆素(4),紫花前胡醇(5),紫花前胡苷元(6)和紫花前胡苷(7);同时采用高效液相色谱法对该植物的根、茎、叶和果实进行了主成分川白芷内酯(2)和紫花前胡素(3)定量分析。

关键词：伞形科小前胡香豆素高效液相色谱法主成分定量分析

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天然产物中羽扇豆烷型三萜波谱特征

湖南中医药大学学报 2013年第9期33卷 10-32页

作者：刘向前邹亲朋陆昌洙湖南中医药大学药学院湖南长沙410208 中南大学化学化工学院湖南长沙410083 长沙博海生物科技有限公司湖南长沙410205 庆熙大学药学院

对天然产物中羽扇豆烷型三萜的化学结构及其UV、IR、MS、NMR等谱学特征进行总结分析,以期为天然产物研究者减少天然产物结构鉴定工作的盲目性和重复性提供参考,为降低羽扇豆烷型三萜结构鉴定的难度提供帮助,为进一步研究分析羽扇豆烷型... 详细信息

对天然产物中羽扇豆烷型三萜的化学结构及其UV、IR、MS、NMR等谱学特征进行总结分析,以期为天然产物研究者减少天然产物结构鉴定工作的盲目性和重复性提供参考,为降低羽扇豆烷型三萜结构鉴定的难度提供帮助,为进一步研究分析羽扇豆烷型三萜提供经验借鉴和理论基础。

关键词：羽扇豆烷型三萜波谱特征结构鉴定