检索结果-南通市图书馆

Effects of Saccharomycesboulardiion fecal short-chain fatty acids and microflora in patients on long-term total enteral nutrition

引用

World Journal of Gastroenterology 2005年第39期11卷 6165-6169页

作者： Stéphane M Schneider Fernand Girard-Pipau Jér(o|^)me Filippi Xavier Hébuterne Dominique Moyse Gustavo Calle Hinojosa Anne Pompei patrick rampal Department of Hepato-Gastroenterology and Clinical Nutrition Archet University Hospital NiceFrance Bacteriology Laboratory Archet University Hospital NiceFrance Biostatistician Paris France Department of Hepato-Gastroenterology Princess Grace Hospital Monte-CarloMonaco

AIM: To assess the effects of Sb on fecal flora and shortchain fatty acids (SCFA) in patients on long-term ***: Ten patients (3 females, 7 males, 59±5.5 years),on TEN for a median of 13 mo (1-125), and 15 healthy volunteers (4 females, 11 males, 32±2.0 years) received Sb (0.5 g bid PO) for 6 d. Two stool samples were taken before, on the last 2 d and 9-10 d after treatment, for SCFA measurement and for culture and bacterial *** (mean±SE) were compared using sign tests and ***: Fecal butyrate levels were lower in patients(10.1±2.9 mmol/kg) than in controls (19.2±3.9, P= 0.02).Treatment with Sb increased total fecal SCFA levels in patients (150.2±27.2 vs 107.5±18.2 mmol/kg, P = 0.02)but not in controls (129.0±28.6 vs 113.0±15.2 mmol/kg,NS). At the end of treatment with Sb, patients had higher fecal butyrate (16.0±4.4 vs 10.1 [2.9] mmol/kg, P = 0.004).Total SCFAs remained high 9 d after treatment was discontinued. Before the treatment, the anaerobe to aerobe ratio was lower in patients compared to controls (2.4±2.3 vs69.8±1.8, P = 0.003). There were no significant changes in the fecal flora of TEN ***: Sb-induced increase of fecal SCFA concentrations (especially butyrate) may explain the preventive effects of this yeast on TEN-induced diarrhea.

关键词：酵母脂肪酸肠内营养腹泻

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

肝内CD4^+淋巴细胞增高与慢性丙型肝炎病人的肝组织损伤

引用

实用肝脏病杂志 1999年第1期4卷 9-11页

作者：杨光杨黎红 Sylvia Benzakcn Alain Doglio Alain Bernard patrick rampal Albert Tran 中国-拖集团洛阳中心医院洛阳市471003 Department of Immunology Department of Virology Department of Hepatology and Gastroenterology Medical College of Nice Sophia-Antipolis University nicefrance06202

目的该实验旨在研究慢性丙型肝炎病人周围血和肝内淋巴细胞各亚群变化与丙型肝炎病毒血症、肝脏组织病变活动指数等之间的关系。方法采用流式细胞仪三色荧光标记单克隆抗体技术对慢性丙型肝炎病人和正常对照的周围血和肝内淋巴细胞各... 详细信息

目的该实验旨在研究慢性丙型肝炎病人周围血和肝内淋巴细胞各亚群变化与丙型肝炎病毒血症、肝脏组织病变活动指数等之间的关系。方法采用流式细胞仪三色荧光标记单克隆抗体技术对慢性丙型肝炎病人和正常对照的周围血和肝内淋巴细胞各亚群进行了测定,同时应用逆转录—多聚酶链反应技术对丙型肝炎病毒血清浓度进行检测并进行了肝组织活检确定肝脏组织病变活动程度。结果发现慢性丙型肝炎病人肝内CD4^+辅助淋巴细胞比例数显著高于正常对照(20.7±7.3％对10.2±4.6％,p=0.027),并与肝脏组织病变活动指数(Knodell score)呈显著正相关(r=0.48,p=0.004)。周围血淋巴细胞和肝内淋巴细胞亚群堤活性变化有很大不同,但该实验未发现周围血淋巴细胞与病变程度有任何相关。结论提示机体的免疫反应特别是肝内的区域免疫反应的确在引起肝脏组织细胞损伤的过程中起重要作用,活性CD4^+辅助淋巴细胞可能通过正性调节CD8^+细胞毒性淋巴细胞在肝内造成肝脏组织细胞损伤。

关键词：慢性丙型肝炎淋巴细胞流式细胞仪 Knodell指数

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

Age structure in neutral theory resolves inconsistencies related to reproductive-size threshold

引用

Journal of Plant Ecology 2012年第1期5卷 64-71页

作者： James Rosindell patrick A.Jansen rampal S.Etienne Institute of Integrative and Comparative Biology Faculty of Biological SciencesUniversity of LeedsLeeds LS29JTWest YorkshireUK Institute of Bioinformatics and Evolutionary Studies University of IdahoMoscowID 83844USA Center for Tropical Forest Science Smithsonian Tropical Research InstitutePO Box 0843-03092BalboaAnconRepublic of Panama Centre of Ecosystem Studies Wageningen UniversityPO Box 476700 AA Wageningenthe Netherlands Community and Conservation Ecology Centre for Ecological and Evolutionary StudiesUniversity of GroningenPO Box 111039700 CC Groningenthe Netherlands

Aims Neutral theory consists of a suite of models that assume ecological equivalence among individual *** have been most commonly applied to tropical forest tree communities either as null models or as *** models typically only include reproductive adults;therefore,fitting to empirical tree community data requires defining a reproductive-size threshold,which for trees is usually set arbitrarily to a diameter at breast height(DBH)of 100 *** inevitable exclusion of some reproductive adults and inclusion of some saplings cause a non-random sampling bias in neutral model ***,we investigate this problem and resolve it by introducing simple age structure into a neutral *** We compared the performance and sensitivity of DBH threshold of three variants of a spatially explicit neutral model:the traditional model,a model incorporating random sampling and a model with two distinct age classes—reproductive adults and *** the age-structured model,saplings are offspring from adults that disperse according to a Gaussian dispersal kernel around the *** only extra parameter is the ratio of adults to saplings,which is not a free parameter but directly *** used species–area relationships(SARs)to explore the predicted effect of saplings on the species richness at different scales in our *** then evaluated the three model variations to find the parameters required to maintain the observed level of species richness in the 50-ha plot on Barro Colorado Island(BCI).We repeated our analysis filtering the data at different minimum tree-size thresholds in order to find the effect this threshold has on our ***,we used empirical species–individual relationships(SIRs)to test the pre-existing hypothesis that environmental filtering is the primary cause of differences between the assemblage of saplings and that of adults on *** Findings Our age-structured neutral model was characterized by SARs that

关键词： neutral theory age structure sampling DBH

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

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

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：