检索结果-南通市图书馆

Single CD271 marker isolates mesenchymal stem cells from human dental pulp

International Journal of Oral Science 2015年第4期7卷 205-212页

作者： Ruth Alvarez Hye-lim lee Christine Hong Cun-Yu Wang Division of Oral Biology and Medicine School of DentistryUniversity of California at Los Angeles Section of Orthodontics School of DentistryUniversity of California at Los Angeles Department of Bioengineering Henry Samueli School of Engineering and Applied ScienceUniversity of California at Los Angeles

Mesenchymal stem cells （MSCs） are a promising tool in regenerative medicine due to their capacity to differentiate into multiple lineages. In addition to MSCs isolated from bone marrow （BMSCs）, adult MSCs are isolated from craniofacial tissues including dental pulp tissues （DPs） using various stem cell surface markers. However, there has been a lack of consensus on a set of surface makers that are reproducibly effective at isolating putative multipotent dental mesenchymal stem cel^s （~M^Cs）. II1 ~his stucly, we used clif^et（~nt combinations of surface markers （CD51/CD140a, CD271, and STRO-1/CD146） to isolate homogeneous populations of DMSCs from heterogeneous dental pulp cells （DPCs） obtained from DP and compared their capacity to undergo multilineage differentiation. Fluorescence-activated cell sorting revealed that 27.3% of DPCs were CD51＋/CD140a＋, 10.6% were CD271＋, and 0.3% were STRO-1＋/CD146＋. Under odontogenic conditions, all three subsets of isolated DMSCs exhibited differentiation capacity into odontogenic lineages. Among these isolated subsets of DMSCs, CD271＋ DMSCs demonstrated the greatest odontogenic potential. While all three combinations of surface markers in this study successfully isolated DMSCs from DPCs, the single CD271 marker presents the most effective stem cell surface marker for identification of DMSCs with high odontogenic potential. Isolated CD271＋ DMSCs could potentially be utilized for future clinical applications in dentistry and regenerative medicine.

关键词： dental mesenchymal stem cells odontogenic differentiation cell surface markers dental pulp fluorescence-activated cellsorting

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Naphthalene emissions from moth repellents or toilet deodorant blocks determined using head-space and small-chamber tests

引用

Journal of Environmental Sciences 2008年第8期20卷 1012-1017页

作者： JO Wan-Kuen lee Jong-Hyo lim Ho-Jin JEONG Woo-Sik Department of Environmental Engineering Kyungpook National UniversityDaegu 702-701Korea. School of Food and Life Science Inje University KimhaeKyungsangnarado 621-749Korea

The present study investigated the emissions of naphthalene and other compounds from several different moth repellents(MRs) and one toilet deodorant block(TDB)currently sold in Korea,using a headspace *** emission factors and emission rates of naphthalene were studied using a small-scale environmental ***-type products emitted a higher concentration of the total volatile organic compounds(VOCs)(normalized to the weight of test piece)than ball-type products,which in turn emitted higher con...

关键词： volatile organic compounds(VOCs) chemical composition ball-type gel-type paper-type

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

RF characteristics of wireless capsule endoscopy in human body

引用

Journal of Central South University 2016年第5期23卷 1198-1207页

作者：王璟琛王炤 Mark Leach lee Sanghyuk Eng Gee lim HUANG Yi Department of Electronic and Electrical Engineering Xi'an Jiaotong-Liverpool University Department of Electrical Engineering and Electronics The University of Liverpool

The wireless capsule endoscope,as a small electronic device,has conquered some limitations of traditional wired diagnosing tools,such as the uncomfortableness of the cables for the patient and the inability to examine the very convoluted small intestine ***,this technique is still encountering a lot of practical challenges and is looking for feasible *** work investigates the RF performance of the wireless capsule endoscope system by studying the electromagnetic(EM) wave propagation within the human body.A wireless capsule endoscopy transmission channel model is constructed to serve the purpose of investigating signal attenuations according to the relative position between the transmitter and the *** 300-500 MHz,the S_(21) results are regular and do not display any sudden changes,which allows a suitable expression to be derived for S_(21) in terms of frequency and *** results provide useful information for capsule localization.

关键词： wireless capsule endoscopy (WCE) electromagnetic wave propagation signal attenuations positioning transmission channel

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Artemisia kruhsiana leaf extract induces autophagic cell death in human prostate cancer cells

引用

Chinese Journal of Natural Medicines 2021年第2期19卷 134-142页

作者： lee Se-Eun SIVTSEVA Sardana lim Chiyeon OKHLOPKOVA Zhanna CHO Suin School of Korean Medicine Pusan National UniversityYangsan-si 50612Republic of Korea Department of Biology North-Eastern Federal UniversityYakutsk 677-027Russia College of Medicine Dongguk UniversityGyeonggi-do 10326Republic of Korea

Some species of Artemisia have been reported to induce apoptosis and autophagy,but little is known of the apoptotic and autophagic effects of the stems and leaves of Artemisia kruhsiana Bess.(AkB).This study was conducted to investigate the antioxidant and anti-autophagic effects of the methanol extracts of the stems(EAkBs)and leaves(EAkBl)of AkB on human prostate cancer PC-3 *** antioxidant effects of EAkBs and EAkBl were measured using in vitro total flavonoid and total phenolic assays and a free radical scavenging *** effects of EAkBl on cell viability,apoptosis,autophagy,intracellular reactive oxygen species(ROS)generation and protein expression levels were also *** was found to induce apoptosis,autophagy,and intracellular ROS generation in PC-3 *** terms of protein levels,EAkBl reduced phospho(p)-protein kinase B(AKT)/AKT,p-mammalian target of rapamycin(mTOR)/mTOR,B-cell lymphoma 2(Bcl-2)/Bcl-2-associated X protein(Bax)ratios,and the activations of beclin 1/β-actin and microtubule-associated protein 1A/1B-light chain 3(LC3)Ⅱ/LC3Ⅰratios in PC-3 *** results of this study indicate EAkBl has antioxidant and anticancer effects on prostate cancer cells,and that these effects are associated with suppressions of p-AKT,p-mTOR,Bcl-2,and Bax,and the activations of beclin 1 and *** results indicate EAkBl has potential as a treatment for prostate cancer.

关键词： Artemisia kruhsiana Pharmacognosy Prostate cancer Autophagy

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Sub-2 nm mixed metal oxide for electrochemical reduction of carbon dioxide to carbon monoxide

引用

Journal of Energy Chemistry 2023年第9期84卷 303-310页

作者： Devina Thasia Wijaya Andi Haryanto Hyun Woo lim Kyoungsuk Jin Chan Woo lee Department of Chemistry Kookmin UniversitySeoul 02707Republic of Korea Department of Materials Science and Engineering Seoul National UniversitySeoul 08826Republic of Korea Department of Chemistry Korea UniversitySeoul 02841Republic of Korea

Mixed metal oxide(MMO) represents a critical class of materials that can allow for obtaining a dynamic interface between its components:reduced metal and its metal oxide counterpart during an electrocatalytic ***,a synthetic method utilizing a MOF-derived micro/mesoporous carbon as a template to prepare sub-2 nm MMO catalysts for CO_(2) electro reduction is *** from the zeolite imidazolate framework(ZIF-8),the pyrolyzed derivatives were used to synthesize sub-2 nm Pd-Ni MMO with different *** Ni-rich(Pd_(20)-Ni_(80)/ZC) catalyst exhibits unexpectedly superior performance for CO production with an improved Faradaic efficiency(FE) of 95.3% at the current density of 200 mA cm^(-2) at-0.56 V *** hydrogen electrode(RHE) compared to other Pd-Ni compositions.X-ray photoelectron spectroscopy(XPS) analysis confirms the presence of Ni^(2+) and Pd^(2+) in all compositions,demonstrating the presence of *** functional theory(DFT) calculation reveals that the lower CO binding energy on the surface of the Pd_(20)-Ni_(80) cluster eases CO desorption,thus increasing its *** work provides a general synthetic strategy for MMO electrocatalysts and can pave a new way for screening multimetallic catalysts with a dynamic electrochemical interface.

关键词： Carbon dioxide reduction Mixed metal oxide Nanoalloy Carbon monoxide Metal-organic framework

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Spontaneous aortic pseudoaneurysm rupture into the sigmoid colon in Behcet's disease patient

引用

World Journal of Gastroenterology 2015年第46期21卷 13201-13204页

作者： Su lim lee Young Mi Ku Yoodong Won Department of Radiology College of MedicineThe Catholic University of Korea

Beh?et's disease(BD) is a multisystem autoimmune disorder characterized by recurrent orogenital ulcers,uveitis,and skin lesions. The vascular manifestations include thrombophlebitis,stenosis,occlusion,and pseudoaneurysm. BD infrequently precipitates aortic pseudoaneurysm rupture into the sigmoid mesocolon and lumen of the adjacent colon. Here we report an extremely rare case of spontaneous abdominal aortic pseudoaneurysm rupture via the sigmoid mesocolon into the lumen of the sigmoid colon in a 37-year-old patient with BD.

关键词： Behcet's disease Aorta Pseudoaneurysm Lower gastrointestinal bleeding Multi-detector computed tomography

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Varicella-zoster virus meningitis after spinal anesthesia:A case report

引用

World Journal of Clinical Cases 2022年第25期10卷 9127-9131页

作者： Ye-Won lee Byunghoon Yoo Yun Hee lim Department of Anesthesiology and Pain Medicine College of MedicineInje UniversitySanggye Paik HospitalSeoul 01757South Korea

BACKGROUND Headache is a common complication of regional *** treatment of post spinal anesthesia headache varies depending on the *** meningitis is rare,it can cause significant harm to the *** dural puncture headache and septic meningitis are the most commonly suspected causes of post spinal anesthesia headache;however,other causes should also be *** SUMMARY A 69-year-old woman was scheduled for varicose vein stripping surgery under spinal *** procedure was performed aseptically,and surgery was completed without any *** 4 d,the patient visited the emergency room with complaints of headache,nausea,and *** examination revealed that the patient was *** the history of spinal anesthesia,post dural puncture headache and septic meningitis was initially suspected,and the patient was treated with empirical ***,varicella-zoster virus PCR test result was positive,and all other test results were *** patient was diagnosed with meningitis caused by varicella-zoster virus and was treated with acyclovir for 5 *** headache improved,and the patient was discharged without any *** Viral meningitis due to virus reactivation may cause headache after regional ***,clinicians should consider multiple etiologies of headache.

关键词： Aseptic meningitis Headache Regional anesthesia Spinal anesthesia Varicella zoster virus infection Case report

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Primary central nervous system lymphoma presenting as a single choroidal lesion mimicking metastasis:A case report

引用

World Journal of Clinical Cases 2022年第4期10卷 1291-1295页

作者： Hee Ryeong Jang Kyu-Hyoung lim Kyungyul lee Department of Internal Medicine Kangwon National University HospitalKangwon National University School of MedicineChuncheon 24289South Korea Department of Pathology Kangwon National University HospitalKangwon National University School of MedicineChuncheon 24289South Korea

BACKGROUND Primary choroidal lymphoma is usually an indolent B-cell lymphoma and rarely progresses to extraocular ***,we report a case of primary choroidal lymphoma diagnosed as diffuse large B-cell lymphoma(DLBL),which progressed to the brain parenchyma after 4 *** SUMMARY A 78-year-old man presented with diminution of vision in his right eye.A choroidal lesion suspected of metastatic lesion was observed in the right eye by ophthalmologic *** discover the primary tumor,imaging investigations were performed but no malignant lesion was *** 4 mo,the patient returned to the clinic presenting with neurological *** magnetic resonance imaging revealed an abnormal contrast-enhancing mass in the left cerebellum.A stereotactic biopsy was performed,and DLBL was *** patient received the high dose methotrexate-based chemotherapy and he achieved complete *** Primary choroidal lymphoma is usually known to have a benign clinical course without systemic *** present a rare case of primary choroidal lymphoma diagnosed as DLBL that progressed to the brain parenchyma within months.

关键词： Primary choroidal lymphoma Diffuse large B-cell lymphoma Primary central nervous system lymphoma Case report

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Preface:molecular,cellular,and tissue mechanobiology

引用

Acta Mechanica Sinica 2017年第2期33卷 219-221页

作者： Xi-Qiao Feng Peter Vee Sin lee Chwee Teck lim Institute of Biomechanics and Medical Engineering Department of Engineering MechanicsTsinghua University Department of Mechanical Engineering University of Melbourne Department of Mechanical Engineering and Mechanobiology Institute National University of Singapore

Mechanics plays a crucial role in a diversity of biological processes at different length(from molecules,cells,tissues,organs to organisms)and time *** a rapidly growing field across the interfaces of mechanics,biology,and medical engineering,mechanobiology aims to identify the mechanical and biological responses of cells and tissues of

关键词： cell ECM Preface:molecular,cellular,and tissue mechanobiology

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

A Study of the Gas Flow through Air Jet Loom

引用

Journal of Thermal Science 2007年第2期16卷 159-163页

作者： Heuy-Dong Kim Chae-Min lim Ho-Joon lee Doo-Hwan Chun School of Mechanical Engineering Andong National University388Songcheon-dongAndong 760-749KoreaE-mail:kimhd Korea Textile Machinery Research Institute 300Sampoong-dongKyeongsan 712-210Korea

Air jet loom, as one of the shuttleless looms, transports a yam into warps using viscosity and kinetic energy of an air jet. Performance of this picking system depends on the ability of instantaneous inhalation/exhaust, configuration of nozzle, operation characteristics of a check valve, etc. In the recent past, many studies have been reported on the air jet discharged from a nozzle exit, but studies for understanding the flow field characteristics associated with shear layer and shock wave/boundary layer interaction in the nozzle were not conducted enough. In this paper, a computational study was performed to explain the flow field in the air jet nozzle with an acceleration tube and validated with previous experimental data available. The results obtained from the computational study show that, in the supersonic flow regime, the flow field depends significantly on the length of acceleration tube. As nozzle pressure ratio increases, drag force acting on the string also increases. For a longer acceleration tube, the total pressure loss is large, owing to the frictional loss.

关键词： compressible flow nozzle shear layer shock wave air jet loom shuttleless loom

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：