检索结果-南通市图书馆

Acute mesenteric ischemia and small bowel imaging findings in COVID-19:A comprehensive review of the literature

World Journal of Gastrointestinal Surgery 2021年第7期13卷 702-716页

作者： lorena Pirola Andrea Palermo Giacomo Mulinacci Laura Ratti Maria Fichera Pietro Invernizzi Chiara Viganò Sara Massironi Division of Gastroenterology and Center for Autoimmune Liver Diseases Department of Medicine and SurgeryUniversity of Milano-BicoccaMonza 20900Italy European Reference Network on Hepatological Diseases San Gerardo HospitalMonza 20900Italy

BACKGROUND Coronavirus disease 2019(COVID-19),an infectious condition caused by severe acute respiratory syndrome coronavirus 2(SARS-Co V-2),has rapidly spread worldwide since its first description in Wuhan in December *** though respiratory manifestations are the most prevalent and responsible for disease morbidity and mortality,extrapulmonary involvement has progressively gained *** particular,gastrointestinal(GI)signs and symptoms,reported in up to two-thirds of patients with COVID-19,might represent the first and,in some cases,the only disease *** presence has been associated in some studies with an increased risk of a severe disease *** pathogenic mechanisms explaining GI tract involvement are either direct viral access to intestinal cells via angiotensin-converting enzyme 2 or indirect damage of the intestinal wall through mesenteric ischemia induced by the hypercoagulable state associated with COVID-19 *** not typical of SARS-Co V-2 infection,several small bowel manifestations have been described in infected patients who underwent any form of abdominal *** radiological findings were mainly reported in patients with abdominal symptoms,among which abdominal pain was the most *** To discuss small bowel radiological manifestations of SARS-Co V-2 infection in abdominal imaging *** Bibliographical searches were performed in Pub Med,using the following keywords:"COVID-19"AND"imaging"AND"gastrointestinal"OR"abdominal"OR"small bowel".RESULTS Of 62 patients with described radiologic small bowel alterations,mesenteric ischemia was diagnosed in 31 cases(50%),small bowel wall thickening in 10 cases(16%),pneumatosis in nine cases(15%),intussusception in eight cases(13%),pneumoperitoneum in two cases(3%)and paralytic ileus in two cases(3%).We also reported mesenteric adipose tissue hypertrophy and lymph nodes enlargement in a young *** So far it is difficult to establish whether

关键词： COVID-19 SARS-CoV-2 Radiology Small intestine Abdomen

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

Hepatobiliar manifestations in inflammatory bowel disease: A practical approach

引用

World Journal of Hepatology 2022年第2期14卷 319-337页

作者： Paulina Núñez F Fabiola Castro Gabriel Mezzano Rodrigo Quera Diego Diaz lorena Castro Universidad de los Andes Inflammatory Bowel Disease ProgramDigestive Disease CenterSantiago 7600976RMChile Inflammatory Bowel Disease Program Hospital San Juan de DiosUniversidad de ChileSantiago 7701230RMChile Universidad de los Andes Hepatology ProgramDigestive Disease CenterSantiago 7600976RMChile Department of Gastroenterology Hospital del Salvador/Universidad de ChileSantiago 7600976RMChile Universidad de los Andes Santiago 770976RMChile

Inflammatory bowel diseases(IBD)are associated with various hepatobiliary *** can occur at any moment in the course of the disease or associated with the *** prevalence of liver dysfunction can reach up to 50%in different *** fatty liver disease is considered the most common hepatobiliary complication in IBD,while primary sclerosing cholangitis is the most *** of hepatic manifestations in IBD involves a multidisciplinary approach that includes a high index of suspicion and joint management with *** medical confrontation with abnormal liver tests must include an exhaustive study to determine if these patterns can be related to IBD,associated diseases or to the therapies used.

关键词： Extraintestinal manifestations Inflammatory bowel disease Sclerosing primary cholangitis Hepatic steatosis Liver toxicity

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

Fluid-dynamics evaluation in a conical spouted bed and characterization of foxtail millet seeds

引用

Particuology 2015年第6期13卷 75-81页

作者： Lidiane Diniz do.Nascimento lorena Gomes Corumba Sandra Cristina dos Santos Rocha Osvaldir Pereira Taranto Cristiane Maria Leal Costa Lenio Jose Guerreiro de Faria Federal University of Pard Faculty of Chemical Engineering Laboratory of Drying and Particle Coating Augusto Correa Street w/n 66075-110 BelemPA Brazil University of Campinas School of Chemical Engineering. Albert Einstein Avenue 500 13083-852 Campinas $8o Paulo Brazil

Foxtail millet （Setaria italica） is one of the most valuable species in economic terms in the genus Setaria and plays an important role in human nutrition, animal feed, and agriculture. The present study described chemical, physical, and quality aspects of seeds of foxtail millet. Furthermore, the fluid-dynamic behavior of the seeds was evaluated in a conical spouted bed, which has advantages in terms of promoting the cyclic and regular movement of the seed particles. Dynamic parameters of spouting （minimum spouting veloc- ity, stable and peak pressure drop） were determined and compared with those obtained from empirical correlations available in the literature. The results obtained from physical characterization showed that the seeds can be classified as belonging to Group D of Geldart, having a non-rough surface, mean diameter of 1.75 mm, and sphericity of 0.74. Fluid-dynamics analysis showed that the seeds are suitable for processing in a spouted bed, which is in agreement with the results of particle physical characterization.

关键词： Foxtail millet Parameters of spouting Characterization Conical spouted bed

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

Epidemiological profile of alcoholic liver disease hospital admissions in a Latin American country over a 10-year period

引用

World Journal of Hepatology 2020年第5期12卷 230-238页

作者： Andre Castro Lyra lorena Mascarenhas Carneiro de Almeida Yukari Figueroa Mise Lourianne Nascimento Cavalcante Gastro-Hepatology Service Hospital Sao RafaelSalvadorBahia 41253-190Brazil Gastro-Hepatology Service Hospital Universitario Prof.Edgard SantosFederal University of BahiaSalvadorBahia 40301-155Brazil de Saude Coletiva-Federal University of Bahia SalvadorBahia 40110-040Brazil

BACKGROUND Alcoholic liver disease(ALD)is a major cause of chronic liver disease *** To describe the epidemiological profile and mortality rates of patients with ALD admitted to public hospitals in different regions of Brazil from 2006 to *** This is a descriptive study that evaluated aggregate data from the five Brazilian geographic *** A total of 160093 public hospitalizations for ALD were *** was a 34.07%increase in the total number of admissions over 10 years,from 12879 in 2006 to 17267 in *** region with the highest proportion(49.01%)of ALD hospitalizations was Southeast(n=78463).The North region had the lowest absolute number of patients throughout the study period,corresponding to 3.9%of the total(n=6242).There was a 24.72%increase in the total number of ALD deaths between 2006 and *** found that the age group between 50 and 59 years had the highest proportion of both hospitalizations and deaths:28.94%(n=46329)of total hospital admissions and 29.43%(n=28864)of all *** were more frequently hospitalized than women and had the highest proportions of deaths in all *** coefficient rates increased over the years,and simple linear regression analysis indicated a statistically significant upward trend in this mortality(R^2=0.744).CONCLUSION Our study provides a landscape of the epidemiological profile of public hospital admissions due to ALD in *** detected an increase in the total number of admissions and deaths due to ALD over 10 years.

关键词： Alcoholic liver disease Epidemiology Mortality Liver Cirrhosis Hospital admissions

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

Endocytic Trafficking towards the Vacuole Plays a Key Role in the Auxin Receptor SCF^TIR-Independent Mechanism of Lateral Root Formation in A. thaliana

引用

Molecular Plant 2012年第6期5卷 1195-1209页

作者： Patricio Perez-Henrique Natasha V. Raikhel lorena Norambuena Plant Molecular Biology Laboratory Department of Biology Faculty of Sciences University of Chile Santiago Chile Millenium Nucleus in Plant Cell Biotechnology Chile Center for Plant Cell Biology and Department of Botany and Plant Sciences University of California Riverside CA 92521 USA

Plants＇ developmental plasticity plays a pivotal role in responding to environmental conditions. One of the most plastic plant organs is the root system. Different environmental stimuli such as nutrients and water deficiency may induce lateral root formation to compensate for a low level of water and/or nutrients. It has been shown that the hor- mone auxin tunes lateral root development and components for its signaling pathway have been identified. Using chemi- cal biology, we discovered an Arabidopsis thaliana lateral root formation mechanism that is independent of the auxin receptor SCFTM. The bioactive compound Sortin2 increased lateral root occurrence by acting upstream from the morpho- logical marker of lateral root primordium formation, the mitotic activity. The compound did not display auxin activity. At the cellular level, Sortin2 accelerated endosomal trafficking, resulting in increased trafficking of plasma membrane recy- cling proteins to the vacuole. Sortin2 affected Late endosome/PVC/MVB trafficking and morphology. Combining Sortin2 with well-known drugs showed that endocytic trafficking of Late E/PVC/MVB towards the vacuole is pivotal for Sortin2- induced SCFTm-independent lateral root initiation. Our results revealed a distinctive role for endosomal trafficking in the promotion of lateral root formation via a process that does not rely on the auxin receptor complex SCFTM.

关键词： lateral root development endocytic trafficking Sortin2 endosomes Arabidopsis.

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

Electrochemically assisted production of biogenic palladium nanoparticles for the catalytic removal of micropollutants in wastewater treatment plants effluent

引用

Journal of Environmental Sciences 2023年第6期128卷 203-212页

作者： Cindy Ka Y Law Kankana Kundu Luiza Bonin lorena Peñcoba-Antona Eduardo Bolea-Fernandez Frank Vanhaecke Korneel Rabaey Abraham Esteve-Nez Bart De Gusseme Nico Boon Center for Microbial Ecology and Technology(CMET) Ghent UniversityCoupure Links 653B-9000 GentBelgium Centre for Advanced Process Technology for Urban Resource recovery(CAPTURE) P.O.Frieda Saeysstraat 1B-9000 GentBelgium METfilter S.L. Autovía A49 Sevilla-Huelva Km 2841820 Carrión de los CéspedesSevillaSpain IMDEA Water Institute Av.Punto Com2Parque Científico Tecnológico28805 Alcaláde HenaresMadridSpain Atomic&Mass Spectrometry(A&MS)research group Department of ChemistryGhent UniversityCampus SterreKrijgslaan 281-S12B-9000 GhentBelgium Universidad de Alcalá Department of Analytical ChemistryPhysical Chemistry and Chemical EngineeringCtra.Madrid-Barcelona Km 33.60028871 Alcaláde HenaresMadridSpain

Biogenic palladium nanoparticles(bio-Pd NPs)are used for the reductive transformation and/or dehalogenation of persistent *** this work,H2(electron donor)was produced in situ by an electrochemical cell,permitting steered production of differently sized bio-Pd *** catalytic activity was first assessed by the degradation of methyl *** NPs showing the highest catalytic activity were selected for the removal of micropollutants from secondary treated municipal *** synthesis at different H2 flow rates(0.310 L/hr or 0.646 L/hr)influenced the bio-Pd NPs *** NPs produced over 6 hr at a lowH2 flow rate had a larger size(D50=39.0 nm)than those produced in 3 hr at a high H2 flow rate(D50=23.2 nm).Removal of 92.1%and 44.3%of methyl orange was obtained after 30 min for the NPs with sizes of 39.0 nm and 23.2 nm,***-Pd NPs of 39.0 nm were used to treat micropollutants present in secondary treated municipal wastewater at concentrations ranging fromμg/L to ng/*** removal of 8 compounds was observed:ibuprofen(69.5%)94.3%)90%***,these data indicate that the size,and thus the catalytic activity of the NPs can be steered and that the removal of challengingmicropollutants at environmentally relevant concentrations can be achieved through the use of bio-Pd NPs.

关键词： Antibiotics Adsorption Biogenic palladium nanoparticles Catalytic activity H2 Secondary treated municipal wastewater

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

An Integrated and Evolutionary Dynamical Systems View of Climate Complexity

引用

International Journal of Geosciences 2013年第1期4卷 49-57页

作者： Walter Ritter Ortíz lorena Cruz Sección de Bioclimatología Centro de Ciencias de la Atmósfera UNAM Circuito Interior s/n Ciudad Universitaria Coyoacan México

The Earth shows a constant display of an organized complexity system, and its intrinsic capacity for sporadic self-organization constitutes its fundamental and profound mysterious property. A graphical method derived from the logistic phase space of precipitation is proposed to identify periods of abundance-scarcity of rain as well as El Nino presence in order to cope with climate change. The most striking result is that the majority of El Nino events on this graph are chaotic, in which the sign of the dominant eigenvalues of precipitation gives trends of scarcity on negative signs and abundance on positive signs, with eleven years periods.

关键词： Climate Change Complexity System Earth

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

Distribution Pattern of Trees in a Hydrological Gradient below the Paraná-Paraguay River Confluence

引用

American Journal of Plant Sciences 2013年第3期4卷 663-673页

作者： Sylvina lorena Casco Juan José Neiff Centro de Ecología Aplicada del Litoral Consejo Nacional de Investigaciones Científicas y Técnicas Universidad Nacional del Nordeste Corrientes Argentina

Riparian and riverine aquatic plant species have evolved within the context of flowing water habitats for which the flooding and droughts are the forcing factors that shape the community features, either through a positive or negative effect on the ecosystem’s function, according to the timing, frequency and magnitude of such events. In the Paraná floodplain landscape, topographic position is a crude indicator of the position along the complex gradient, but it also includes information about flood/drought periods and trees’ resilience to extreme hydrological phases. We present the occurrence of major tree species in riparian forests of the Paraná River on islands of different topographies in a section of the Paraná River downstream from the confluence with the Paraguay River. Our results suggest that each tree species had a preferred position in the topographic gradient, sites where the observed counts were more frequent. This trees species were more frequent between 2 and 8 m in the topographic position and were affected by 5 and 202 hydrosedimentologic pulses between 1949 and 1999. We suggest that knowledge of the distribution curves of the vegetation species present can help draw possible future scenarios of the river landscape. Future engineering works to alter the hydrological dynamics of Paraná should pay more attention to the distribution of riparian forests because they are indicators of changes at the landscape level and they are the support for the wildlife of the river.

关键词： Riverine Forests River Pulse Paraná Floodplain Ecohydrology Fluvial Landscape

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

Identification of Alkaloid’s Profile in Ficus benjamina L. Extracts with Higher Antioxidant Power

引用

American Journal of Plant Sciences 2014年第26期5卷 4029-4039页

作者： Silvia Novelli Canuti lorena Canini Antonella Department of Biology University of Rome 'Tor Vergata' Rome Italy

Different classes of known alkaloid compounds were identified for the first time in leaves and barks of Ficus benjamina L. from Moraceae family. The identification of 28 alkaloids in F. benjamina leaves and 14 alkaloids in its barks was identified using chromatographic analysis as Gas Chromatography associated to Mass Spectrometry (GC-MS). This characterization analysis allows to verifying the presence of different alkaloids type-classes in both leaves and barks, such as isoquinoline class, indole class and quinolizidine class. The quantification results are deduced by analysis with spectrophotometric assay, using a calibration curve of boldine as standard alkaloid that reveals the presence of 26 ± 0.1 μg of alkaloids boldine equivalent in 1 gram of F. benjamina leaves and 3.8 ± 0.1 μg alkaloids boldine equivalent in 1 gram of its barks. A significant correlation was observed between the total alkaloid content of crude extracts and 2,2-diphenyl-1-picrylhydrazyl assay (DPPH), suggesting that the level of antioxidant activity in this species is strongly correlated to the alkaloid content. These findings should provide useful information for future on the pharmaceutical properties of these alkaloids from F. benjamina.

关键词： Ficus benjamina Alkaloids Columbamine Antioxidant Power

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

Innate immunity–the hallmark of Helicobacter pylori infection in pediatric chronic gastritis

引用

World Journal of Clinical Cases 2021年第23期9卷 6686-6697页

作者： lorena Elena Meliț Cristina Oana Mărginean Maria Oana Săsăran Simona Mocan Dana Valentina Ghiga Alina Bogliş Carmen Duicu Department of Pediatrics I “George Emil Palade”University of MedicinePharmacySciences and Technology Târgu MureșTârgu Mureș540136Romania Department of Pediatrics III “George Emil Palade”University of MedicinePharmacySciences and Technology Târgu MureșTârgu Mureș540136Romania Department of Pathology Emergency County Hospital Târgu MureșTârgu Mureș540139Romania Scientific Medical Research Methodology “George Emil Palade”University of MedicinePharmacySciences and Technology Târgu MureșTârgu Mureș540136Romania Department of Genetics Center for Advanced Medical and Pharmaceutical Research“George Emil Palade”University of MedicinePharmacySciences and Technology Târgu MureșTârgu Mureș540136Romania

BACKGROUND Innate immunity was found to be associated with both persistence of Helicobacter pylori(***)infection and increased risk of gastric *** To identify the risk factors associated with *** infection and to establish the role of TLR9 rs352140 in suppressing or promoting inflammation related to this infection in *** We performed a study of 155 children with digestive symptoms,who were divided into two groups according to the histopathological exam:Group 1–48 children with ***-induced chronic gastritis,and Group 2–control *** Rural area and poor living conditions were significantly associated with *** chronic gastritis(P=0.0042/P<0.0001).Both positive immunoglobulin A anti *** and the rapid urease test were significantly associated with *** infection(P<0.0001).Significantly higher values of leukocytes and neutrophils within the peripheral blood were found in children with *** chronic gastritis(P=0.111/P=0.284).We found a significant positive correlation between the variant TT genotype of TLR9 rs352140 polymorphism and both leucocytes and neutrophils(P=0.0225/P=0.0292).CONCLUSION Variant TT genotype carriers of the TLR9 rs352140 gene polymorphism might have a more severe degree of inflammation.

关键词： Innate immunity Helicobacter pylori infection Children Chronic gastritis TLR9 Systemic inflammation

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：