检索结果-南通市图书馆

Multiphase computed tomography radiomics of pancreatic intraductal papillary mucinous neoplasms to predict malignancy

引用

World Journal of Gastroenterology 2020年第24期26卷 3458-3471页

作者： Stuart L Polk Jung W Choi Melissa J McGettigan Trevor Rose Abraham Ahmed Jongphil Kim Kun Jiang Yoganand Balagurunathan Jin Qi Paola T Farah Alisha Rathi Jennifer B Permuth Daniel Jeong University of South florida college of Medicine TampaFL 33612United States Department of Diagnostic and Interventional Radiology H.Lee Moffitt Cancer Center and Research InstituteTampaFL 33612United States Department of Biostatistics and Bioinformatics H.Lee Moffitt Cancer Center and Research InstituteTampaFL 33612United States Department of Anatomic Pathology H.Lee Moffitt Cancer Center and Research InstituteTampaFL 33612United States Department of Cancer Physiology H.Lee Moffitt Cancer Center and Research InstituteTampaFL 33612United States Department of Clinical Science H.Lee Moffitt Cancer Center and Research InstituteTampaFL 33612United States Department of Radiology University of FloridaGainesvilleFL 32610United States Department of Cancer Epidemiology H.Lee Moffitt Cancer Center and Research InstituteTampaFL 33612United States

BACKGROUND Intraductal papillary mucinous neoplasms(IPMNs)are non-invasive pancreatic precursor lesions that can potentially develop into invasive pancreatic ductal ***,the International Consensus Guidelines(ICG)for IPMNs provides the basis for evaluating suspected IPMNs on computed tomography(CT)*** using the ICG,it remains challenging to accurately predict whether IPMNs harbor high grade or invasive disease which would warrant surgical resection.A supplementary quantitative radiological tool,radiomics,may improve diagnostic accuracy of radiological evaluation of *** hypothesized that using CT whole lesion radiomics features in conjunction with the ICG could improve the diagnostic accuracy of predicting IPMN *** To evaluate whole lesion CT radiomic analysis of IPMNs for predicting malignant histology compared to International Consensus *** Fifty-one subjects who had pancreatic surgical resection at our institution with histology demonstrating IPMN and available preoperative CT imaging were included in this retrospective *** lesion semi-automated segmentation was performed on each preoperative CT using Healthmyne software(Healthmyne,Madison,WI).Thirty-nine relevant radiomic features were extracted from each lesion on each available contrast *** analysis of the 39 radiomics features was performed for each contrast phase and values were compared between malignant and benign IPMN groups using logistic *** quantitative and qualitative CT measurements were also compared between groups,viaχ2(categorical)and Mann Whitney U(continuous)*** Twenty-nine subjects(15 males,age 71±9 years)with high grade or invasive tumor histology comprised the"malignant"cohort,while 22 subjects(11 males,age 70±7 years)with low grade tumor histology were included in the"benign"*** analysis showed 18/39 precontrast,19/39 arterial phase,and 21/39 venous phase features

关键词： Radiomics Intraductal papillary mucinous neoplasm Multiphase computed tomography Pancreas Oncology Pancreatic cancer

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

Prevalence of and risk factors associated with Cryptosporidium infection in an underdeveloped rural community of southwest China

引用

Infectious Diseases of Poverty 2017年第1期6卷 9-18页

作者： Ya Yang Yi-Biao Zhou Peng-Lei Xiao Yan Shi Yue Chen Song Liang Wu-Li Yihuo Xiu-Xia Song Qing-Wu Jiang School of Public Health Fudan UniversityBuilding 8130 Dong’an RoadXuhui DistrictShanghai 200032China Key Laboratory of Public Health Safety Fudan UniversityMinistry of EducationBuilding 8130 Dong’an RoadXuhui DistrictShanghai 200032China Center for Tropical Disease Research Fudan UniversityBuilding 8130 Dong’an RoadXuhui DistrictShanghai 200032China School of Epidemiology Public Health and Preventive MedicineFaculty of MedicineUniversity of Ottawa451 Smyth RoadOttawaON K1H 8M5Canada Department of Environmental and Global Health College of Public Health and Health ProfessionsUniversity of Florida2055 Mowry RoadGainesvilleFL 32611USA Emerging Pathogens Institute University of Florida2055 Mowry RoadGainesvilleFL 32611USA Puge Center for Disease Prevention and Control 6 Qingnian RoadPuge CountySichuan 615300China

Background:Cryptosporidium *** an important intestinal protozoan causing diarrhea in humans,livestock,and wild *** infection remains a major public health issue,but its epidemiology in humans is still unclear,particularly in rural *** study was designed to determine the prevalence of and risk factors associated with Cryptosporidium infection in a rural southwestern Chinese ***:A community-based cross-sectional survey was conducted among 687 residents of a small town in a Yi autonomous prefecture of southwest China in *** samples were examined using a broad set of quality-controlled diagnostic methods for hepatitis B virus(HBV)and human immunodeficiency virus(HIV).Stool specimens were processed using the modified acid-fast staining method,and microscopically examined for Cryptosporidium *** and multivariable analyses were performed to determine the risk factors associated with Cryptosporidium ***:The majority of the participants were Yi people with poor living conditions and unsatisfactory hygiene habits,and the study area was of very low socioeconomic *** the 615 individuals included in the analysis,14(2.3%)were HIV positive,51(8.3%)were infected with HBV,and 74(12.0%)had Cryptosporidium *** prevalences of HIV/HBV,HIV/Cryptosporidium,and HBV/Cryptosporidium co-infections were 0.3%,0.3%,and 1.8%,*** prevalence of HBV infection was higher in individuals with Cryptosporidium infection(χ^(2)=5.00,P=0.03).Owning livestock or poultry was an important risk factor for Cryptosporidium infection(aOR=2.27,95%CI:1.01-5.08,P<0.05).Cryptosporidium infection was significantly associated with HBV infection(aOR=3.42,95%CI:1.47-7.92,P<0.01),but not with HIV infection(aOR=0.57,95%CI:0.07-4.39,P=0.59).Conclusions:The prevalence of Cryptosporidium infection was high in the rural area of southwestern China that was investigated,and there was a significant association between HB

关键词： Cryptosporidium Hepatitis B virus Human immunodeficiency virus Prevalence Risk factors Rural areas China

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

Meaning in life and well-being of older stroke survivors in Chinese communities: Mediating effects of mastery and self-esteem

引用

Health 2013年第4期5卷 743-748页

作者： Jingjin Shao Jiliang Shen Qinghua Zhang Tian Lin Department of Psychology University of Florida Gainesville USA Department of Public Administration Chongqing Youth Vocational and Technical College Chongqing China Institute of Developmental Psychology Beijing Normal University Beijing China Research Center of Mental Health Education and Faculty of Psychology Southwest University Chongqing China

The study aims to examine the role of mastery and self-esteem as a potential mediator of the relationship of meaning in life and well-being among older Chinese stroke survivors. A cross-sectional study was conducted in 214 community-dwelling older stroke survivors (128 men and 86 women), ranging from 60 years to 88 years old. The meaning in life, mastery, self-esteem and subjective well-being were measured. The results indicated that: 1) The meaning in life and subjective well-being of stroke survivors were significantly positive correlated;2) Mastery and self-esteem played partial mediating roles between existential vacuum and subjective well-being;Self-esteem played full a mediating role between suffer acceptance and subjective well-being;Mastery played a full mediating role between life control and subjective well-being;Mastery played a partial mediating role between death acceptance and subjective well-being;Self-esteem also played a partial mediating role between mastery and subjective well-being.

关键词： Stroke Meaning in Life Mastery Self-Esteem Well-Being

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

Odontogenic Herpes Zoster Infection: A Case Report and Review

引用

Case Reports in Clinical Medicine 2022年第12期11卷 487-493页

作者： Edlira Maska Austin J. Trent Andrea de Lemos Larry M. Bush Department of Medicine Wellington Regional Medical Center Wellington FL USA Charles E. Schmidt college of Medicine Florida Atlantic University Boca Raton FL USA Department of Medical Education University of Miami-Miller School of Medicine Palm Beach County FL USA

Herpes zoster is a commonly encountered entity of which all clinicians should be aware. The diagnosis is most often considered and made based on a characteristic vesicular rash that presents in a unilateral dermatomal distribution and is usually accompanied by a painful neuritis. Not uncommonly, the pain presents a few days before the rash becomes evident and may even occur without the rash appearing. When this happens patients may be subject to further diagnostic testing seeking alternative diagnoses, as herpes zoster is known to mimic a variety of other non-cutaneous organ system entities. Although the thoracic and lumbar dermatomes are the affected most frequently, in approximately one-fifth of cases the cranial nerves are involved either singularly or in combination. Trigeminal nerve zoster is of particular concern as it poses a risk of developing into zoster ophthalmicus with subsequent keratitis and uveitis resulting in permanent vision impairment. Involvement of the second (maxillary) and third (mandibular) branches of this 5th cranial nerve are less common and may present with signs and symptoms of a primary dental process. The infrequency and unfamiliarity of herpes zoster odontogenic manifestations can lead to unnecessary investigation and treatment. Apropos such a case we review the epidemiology, pathophysiology, signs, and symptoms of odontogenic herpes zoster.

关键词： Herpes Zoster Trigeminal Nerve Odontogenic

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

视力受限

引用

世界核心医学期刊文摘(眼科学分册) 2006年第4期 61-62页

作者： Dorotheo E.U. Bahrani H.M. M.T. Bhatti 潘峰 Dr. college of Medicine University of Florida Dept. of Ophthalmology Gainesville FL 32610-0284 United States

A50-year-old female presentedwith progressive painless vision loss in the left eye and was subsequently diagnosed to have a pituitarymacroadenoma, consistent with a prolactinoma, which was compressing the chiasm primarily on the left and involving the left cavernous sinus. She was treated with oral bromocriptine, resulting in marked shrinkage of the tumor and significant visual field recovery. Subsequently, she again began noting progressive vision loss in both eyes and was initially thought to have pituitary tumor regrowth. Repeat brain MRI, however, showed chiasmal prolapse with inferior tethering into an empty sella. Surgical fat padding to reposition the chiasm resulted in visual improvement with a different visual field pattern in the left eye. The clinical manifestations and etiopathogenesis of the empty sella syndrome are discussed.

关键词：视力视交叉进行性

来源：

同方期刊数据库评论

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

The Effect of China’s Family Structure on Household Nutrition

引用

Food and Nutrition Sciences 2019年第2期10卷 198-206页

作者： Yan Wang Thomas I. Wahl James L. Seale J. Junfei Bai Department of Agribusiness and Applied Economics North Dakota State University Fargo ND USA Beijing Food Safety Policy & Strategy Research Base College of Economics and Management China Agricultural University Beijing China Department of Food and Resource Economics University of Florida Gainesville FL USA

China’s one-child policy has created entitled children or “little kings” who are spoiled by their parents and doting grandparents that want to provide the “best food” for their child to ensure the future of the family. In addition, seniors’ food preferences may influence the household’s diet. The extended family structure, typically including one child and seniors, will likely affect food expenditures, but does this provide the most nutritious or healthiest diet? Using household data collected from 11 Chinese cities, the results of this study suggest that the presence of a child or seniors, as well as higher income levels, and wife’s education level have significant effects on healthy household food consumption.

关键词： Chinese Food Consumption Children Seniors Health Eating Healthy

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

Frontal lobe position after single-layer cadaveric dermal matrix repair of large anterior skull base defects

引用

World Journal of Otorhinolaryngology-Head and Neck Surgery 2022年第1期8卷 36-41页

作者： Corinna G.Levine Abdullah N.Al-Rasheedi Alejandro Mantero Mohammad Al-Bar Roy R.Casiano Rhinology&Skull Base Surgery Department of OtolaryngologyUniversity of Miami Miller School of MedicineMiamiFloridaUSA Otolaryngology Head&Neck Surgery Jouf University-Medical CollegeSkakaSaudi Arabia Department of Public Health Sciences Biostatistics Collaboration and Consulting Core.MiamiFlorida.USA Otolaryngology King Fahad Hospital of the UniversityImam Abdulrahman Bin Faisal UniversityKhobarSaudi Arabia

Objective:Endoscopic repair of large anterior skull base(ASB)defects has excellent results when using multilayered repairs with a nasoseptal ***,in extensive intranasal tumors,a nasoseptal flap may not always be *** alternative option is a flexible single-layer ASB *** studies indicate low cerebrospinal fluid leak rates with a single-layer ***,the level of frontal lobe support,particularly the propensity for a significant inferior displacement of the frontal lobe,is not *** goal of this study is to determine the frontal lobe position after single-layer acellular dermal allograft repair in large ASB *** Design:Retrospective cohort ***:Tertiary care medical *** and Methods:This cohort study compares the frontal lobe position in adults who underwent endoscopic endonasal ASB tumor resection and single-layer cadaveric dermal matrix repair(ASB cohort)with control subjects without intracranial abnormalities(control cohort).The ASB cohort includes subjects with an ASB defect of≥5 cm anterior/posterior and≥1.5 cm wide and who had imaging at least 2 months after *** frontal lobe position is measured on sagittal CT/MRI using a reference line from the base of the sella to the nasion.A value of zero indicates that the inferior-most aspect of the frontal lobe is at the level of the nasion-sellar line.A positive value indicates that the frontal lobe is inferior to the nasion-sellar *** ASB cohort frontal lobe position is compared with the control cohort using the Mann-WhitneyU test.A priori we set an absolute difference of 5 mm as a clinically significant ***:The ASB cohort includes 47 subjects who are 57%male with an average age of 60 years(range:31-89 years).The most common ASB pathology is esthesioneuroblastoma(n=21)and 81%of the ASB cohort had postoperative *** control cohort includes 20 subjects who are 60%male,with a mean age of 45 years(range:19-74 years).The

关键词： anterior skull base cohort study frontal lobe skull base repair skull base tumor

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

Forensic isoscapes based on intra-individual temporal variation of δ^(18)O and ^(206)Pb/^(207)Pb in human teeth

引用

Forensic Sciences Research 2021年第1期6卷 42-52页

作者： Laura A.Regan Nathan W.Bower Samuel J.Brown Craig C.Lundstrom Gideon Bartov Matthew D.Cooney Office of Net Assessment Department of DefenseWashingtonDCUSA Chemistry and Biochemistry Department Colorado CollegeColorado SpringsCOUSA Geology Department University of IllinoisUrbanaILUSA Information Technology Services Colorado CollegeColorado SpringsCOUSA

Isotopic signatures used in the georeferencing of human remains are largely fixed by spatially distinct geologic and environmental ***,location-dependent temporal changes in these isotope ratios should also be considered when determining an individual’s provenance and/or *** of the relevant isotopes can be impacted by predictable external factors such as climate change,delocalisation of food and water sources and changes in sources and uses of *** Multi-Collector Inductively-Coupled Plasma Mass Spectrometer(MC-ICP-MS)analyses of ^(206)Pb/^(207)Pb in tooth enamel and dentin from a population of 21±1-year-old individuals born circa 1984 and isotope ratio mass spectrometry(IRMS)of δ^(18)O in their enamel,we examined the expected influence of some of these *** resulting adjustments to the geographic distribution of isotope ratios(isoscapes)found in tooth enamel and dentin may contain additional useful information for forensic identification,but the shifts in values can also impact the uncertainty and usefulness of identifications if they are not taken into account.

关键词： Forensic sciences dentin enamel environmental geolocation isoscape radiogenic and stable isotopes

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

Isolation of Pleurotus fl orida derived acetylcholinesterase inhibitor for the treatment of cognitive dysfunction in mice

引用

Food Science and Human Wellness 2021年第4期10卷 490-496页

作者： Kudrat Randhawa Varinder Singh Sanimardeep Kaur Ravinder Kaur Suresh Kumar Richa Shri Department of Pharmaceutical Sciences and Drug Research Punjabi UniversityPatiala 147002India Chitkara college of Pharmacy Chitkara UniversityPunjabIndia

Our earlier work showed that hydromethanol extract(HME)of Pleurotus fl orida had antioxidant and anticholinesterase *** study aimed at isolating the constituent responsible for the *** was subjected to bioactivity guided fractionation using in vitro anti-acetylcholinesterase(Ellman method)and antioxidant(DPPH scavenging assay).The most active constituent was evaluated in vivo employing ***(STZ)induced dementia in *** water maze test was used for evaluating memory,followed by biochemical estimations and histopathological *** guided fractionation resulted in isolation of resveratrol(identifi ed by IR,NMR and MS)and its content in *** orida fruiting bodies was 0.0098%(m/m,by a validated TLC densitometric method).It improved STZ induced dementia and neurodegeneration in mice by reducing brain acetylcholinesterase action and oxidative *** observed effects might be the presence of *** results further endorse that *** orida derived resveratrol can be a promising therapy for Alzheimer’s disease.

关键词： Acetylcholinesterase inhibitor Alzheimer’s disease Mushrooms Pleurotus fl orida Resveratrol

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

Evaluating Southern Appalachian Forest Dynamics without Eastern Hemlock: Consequences of Herbivory by the Hemlock Woolly Adelgid

引用

Open Journal of Forestry 2014年第2期4卷 91-99页

作者： Andrew G. Birt Yu Zeng Maria D. Tchakerian Robert N. Coulson Charles W. Lafon David M. Cairns John Waldron Weimin Xi Szu-Hung Chen Douglas A. Street Department of Biological and Health Sciences Texas A&M University-Kingsville Kingsville USA Department of Environmental Studies University of West Florida Pensacola USA Department of Geography Texas A&M University College Station USA Knowledge Engineering Laboratory Department of Entomology Texas A&M University College Station USA Southern Research Station US Forest Service Alexandria Forestry Center Pineville USA

Eastern hemlock (Tsuga canadensis Carriére) and the Carolina hemlock (Tsuga caroliniana Engelmann) are ecologically important tree species in eastern North America forests that are currently threatened by the hemlock woolly adelgid (HWA, Adelges tsugae Annand, Hemiptera: Adelgidae). HWA has spread rapidly from its original introduction site into new areas. Once present, HWA kills its hosts over a period of 4 to 10 years leading to a phenomenon that is known scientifically and colloquially as hemlock decline. To date, quarantine, chemical management, and biocontrol efforts have failed to curb the spread of the HWA. As such, forest management efforts are now being redirected towards developing an understanding of the effects of hemlock removal on vegetation dynamics, changes in forest composition, and changes in ecosystem function. In this study, we parameterize a spatially explicit landscape simulation model LANDIS II for a specific forested region of the southern Appalachians. Parameterization involves defining the life-history attributes of 37 tree species occupying 11 ecological zones and is based on knowledge of: current vegetation composition data, recent historic management and fire regimes, and life-history traits of each species. The parameterized model is used to explore a simple scenario of catastrophic hemlock mortality likely to occur as a result of HWA herbivory. Our results emphasize that hemlock is an important foundation species. When hemlock is removed from the system, forest composition changes considerably with a greater presence of shade intolerant pine and oak species. Additionally, hemlock removal leads to a period of transient, relatively unstable vegetation dynamics as the forest communities restructure.

关键词： Hemlock Forest Dynamics LANDIS II Hemlock Woolly Adelgid Southern Appalachian

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

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：