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SUSTAINABLE DEVELoPMENT of CRoP-LIVESToCK fARMS IN AfRICA

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frontiers of Agricultural Science and Engineering 2021年第1期8卷 175-181页

作者： Mariana C.RUfINo Charles K.K.GACHENE Rodrigue V.C.DIoGo James HAWKINS alice A.oNYANGo ousmane M.SANoGo Ibrahim WANYAMA Gabriel YESUf David E.PELSTER Lancaster Environment Centre Lancaster UniversityLancasterLA14YQUK Department of Land Resource Management and Agricultural Technology University of NairobiNairobiP.O.Box 29053-00625Kenya faculty of Agricultural Sciences University of ParakouParakouP.O.Box 123Benin International Livestock Research Institute(ILRI) NairobiP.O.Box 30709-00100Kenya Institut d'Economie Rurale SikassoBP 16Mali Agriculture and Agri-food Canada 2560 Blvd HochelagaQuebec CityG1V 2J3Canada

Crop-livestock farms across Africa are highly variable due to in agroecological and socioeconomic factors,the latter shaping the demand and supply of livestock ***-livestock farms in Africa in the 20-first century are very different from most mixed farms elsewhere in the *** crop-livestock farms are smaller in size,have fewer livestock,lower productivity and less dependency on imported feed than farms in most countries of Europe,the Americas and the intensive agricultural systems of *** paper discusses the role African crop-livestock farms have in the broader socio-agricultural economy,and how these are likely to change adapting to pressures brought on by the intensification of food *** intensification implies increasing land productivity(more food per hectare),often leading to more livestock heads per farm,producing fertilized feeds in croplands and importing feed supplements from the *** discussion includes(1)the links between crop yields,soil fertility and crop-livestock integration,(2)the increasing demand for livestock products and the land resources required to meet to this demand,and(3)the opportunities to integrate broader societal goals into the development of crop-livestock *** is ample room for development of crop-livestock farms in Africa,and keeping integration as part of the development will help prevent many of the mistakes and environmental problems related to the intensification of livestock production observed elsewhere in the *** development can integrate biodiversity,climate change adaptation and mitigation to the current goals of increasing productivity and food *** inclusion of broader goals could help farmers access the level of finance required to implement changes.

关键词： finance integrate goals

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猪塞内卡病毒感染的最新研究进展(续2)

国外畜牧学（猪与禽） 2019年第4期39卷 25-26页

作者：唐彩琰(译) Raquel A. Leme alice f. Alfieri Amauri A. Alfieri[巴西] 不详

主要介绍塞内卡病毒的致病性证据、免疫应答和诊断等。

关键词：猪塞内卡病毒水疱性疾病

胰岛素瘤相关蛋白-2高表达对胰岛细胞增殖的影响

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南京医科大学学报（自然科学版） 2004年第6期24卷 565-567页

作者：刘煜 alice H 朱虎曾丽玲陈家伟陈小章南京医科大学第一附属医院内分泌科南京210029 香港中文大学上皮细胞研究中心

目的:探讨1型糖尿病自身抗原胰岛素瘤相关蛋白-2(IA鄄2)高表达对胰岛细胞系RIN5f细胞增殖、生长周期和细胞凋亡的影响。方法:利用分子克隆技术构建IA鄄2真核表达载体,转染RIN5f细胞后筛选稳定高表达IA鄄2的细胞系,采用3鄄(4,5鄄二甲基)... 详细信息

目的:探讨1型糖尿病自身抗原胰岛素瘤相关蛋白-2(IA鄄2)高表达对胰岛细胞系RIN5f细胞增殖、生长周期和细胞凋亡的影响。方法:利用分子克隆技术构建IA鄄2真核表达载体,转染RIN5f细胞后筛选稳定高表达IA鄄2的细胞系,采用3鄄(4,5鄄二甲基)鄄5鄄(3鄄羧甲基苯环)鄄2鄄(4鄄硫基苯)鄄2H鄄四唑盐复合物(MTS)检测法确定细胞增殖速率,运用流式细胞术检测细胞生长周期和细胞凋亡水平。结果:IA鄄2高表达细胞增殖速率显著低于载体对照组细胞(P<0.05)。IA鄄2高表达细胞的细胞凋亡数显著高于载体对照组细胞(P<0.01)。IA鄄2高表达细胞中位于S期的细胞比率显著增加,而G2/M期的细胞比率减少(P<0.05)。结论:IA鄄2在胰岛细胞内高表达可抑制胰岛细胞的增殖,促进细胞凋亡,在G2鄄M期细胞生长阻滞。

关键词：胰岛细胞增殖 Ⅰ型糖尿病 IA—2 生长周期凋亡

葡萄糖、促炎症因子和生长因子影响胰岛自身抗原的表达

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南京医科大学学报（自然科学版） 2005年第12期25卷 853-856页

作者：刘煜曾丽玲 alice H 朱虎陈家伟陈小章南京医科大学第一附属医院内分泌科南京210029 香港中文大学上皮细胞研究中心

目的:探讨葡萄糖、细胞因子TNf-α,IfN-γ和生长因子IGf-1,EGf,fGf对胰岛细胞自身抗原IA-2表达水平及胰岛功能的影响。方法:以不同浓度的葡萄糖(3,7,11和30mmol/L)、IfN-γ(10ng/ml)、TNf-α(100ng/ml)及IGf-1,EfG,fGf-10(10ng/ml),分别刺激胰岛细胞系RIN5f24h和48h,用RT-PCR方法检测各组RIN5f细胞中IA-2的mRNA表达水平,用放射免疫法检测上清中胰岛素的浓度,3-(4,5-二甲基)-5-(3-羧甲基苯环)-2-(4-硫基苯)-2H-四唑盐复合物(MTS)法检测细胞生长速率。结果:RT-PCR结果显示以不同浓度葡萄糖(3,7,11和30mmol/L)分别刺激RIN5f细胞系后,IA-2mRNA水平呈浓度依赖性和时间依赖性增加;TNf-α、IfN-γ可抑制IA-2mRNA的水平(Pf-1、fGf使IA2的表达增加(Pf-α或IfN-γ刺激RIN5f细胞系后,上清中胰岛素水平均较基础值降低,并且作用48h后差异有显著性(Pf-1,bfGf作用于RIN5f细胞系48h,上清中胰岛素较基础值显著增加(Pf-1使胰岛细胞增殖速率显著增加(Pf-α、IfN-γ和一些生长因子可改变胰岛自身抗原的表达,参与1型糖尿病的发病。

关键词：胰岛素瘤相关蛋白2 葡萄糖细胞因子

Antioxidant properties of cell wall polysaccharides of Stevia rebaudiana leaves

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Journal of Coastal Life Medicine 2014年第12期 962-969页

作者： Mediesse Kengne francine Woguia alice Louise fogue Souopgui Pythagore Atogho-Tiedeu Barbara Simo Gustave Thaddée Boudjeko Laboratory of Phytoprotection and Valorization of Plants Resources Biotechnology Centre-NkolbissonPo.Box 3851MessaYaoundeCameroon Department of Biochemistry Faculty of ScienceUniversity of Yaounde IPo.Box 812 YaoundeCameroon Department of Biochemistry Faculty of ScienceUniversity of DschangPo.Box 67 DschangCameroon Laboratory for Metabolic and Molecular Medicine Biotechnology Centre-NkolbissonPo.Box 3851MessaYaoundeCameroon

objective:To examine the total phenolic and protein contents,and the antioxidant activities of cell wall polysaccharide fractions of Stevia rebaudiana ***:Three different polysaccharide-enriched fractions,namely fPE(extract with 50 mmol/L ethylene diamine tetra acetic acid),fPK(extract with 0.05 mol/L KoH)and fH(extract with 4 mol/L KoH)were extracted from Stevia rebaudiana *** antioxidant activity of these fractions was evaluated based on their ability to scavenge DPPH(1,1-diphenyl-2-picryl hydrazyl)free radical,to reduce ferric power,to chelate ferrous ion and to protect human ***:The results indicated that protein content was found to be higher in fPK polysaccharide enriched fraction(47.48μg per mg of fPK).furthermore,the phenolic compound analysis according to the folin-Ciocalteu method was higher in fPK(17.71μg ferulic acid).The DPPH maximal inhibition percentage of the three polysaccharide-enriched fractions at 400μg/mL was 27.66%,59.90%and 23.21%respectively for fPE,fPK and *** the polysaccharide fractions exhibited a ferric reducing power except the fH *** three fractions also exhibited lipid peroxidation inhibition,and they completely reverted the DNA damage induced by H_(2)o_(2)/feCl_(2).fPK showed the strongest scavenging activity against the DPPH radical,the best chelating ability and lipid peroxidation ***:Stevia cell wall polysaccharide fractions are potent protective agents against oxidative *** analysis revealed major differences in the antioxidant activity in the three polysaccharides ***,the 0.05 mol/L KoH pectin fraction(fPK)showed better antioxidant activity.

关键词： Stevia rebaudiana Cell wall polysaccharides fractions Antioxidant properties

Global evolution of organochlorine pesticides research in biological and environmental matrices from 1992 to 2018:A bibliometric approach

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Emerging Contaminants 2019年第1期5卷 157-167页

作者： Chijioke olisah omobola o.okoh Anthony I.okoh Department of Pure and Applied Chemistry University of Fort HareAlice5700South Africa Applied and Environmental Microbiology Research Group(AEMREG) Alice5700South Africa SAMRC Microbial Water Quality Monitoring CentreUniversity of Fort HareAlice5700South Africa

The analysis of organochlorine pesticides(oCPs)in ecosystem components has been a major niche area among environmental scientists,probably due to their endocrine-disruptive ***,we evaluated the global research productivity of oCPs research from 1992 to 2018 using various bibliometric indices.A total of 2326 articles that focused on oCPs research in biological and environmental matrices were retrieved from the Web of Science(WoS).A steady progression on oCPs article production was noticed during the survey period with regression and Lokta distribution models suggesting that more research outputs on this pollutant class is imminent in years to *** People's Republic of China and the United States were respectively ranked first and second in both‘most productive countries’and‘countries with the highest number of citations.’Not surprisingly,these two countries also had the most collaborative network with not less than ten collaboration linkages with other *** study shows the high involvement of oCPs research from scientists domiciled in developed ***,international collaboration should be encouraged particularly between developed and developing *** this end,more research programs should be established to monitor oCPs in regions where they have been used in the past especially in *** bibliometric survey will assist policymakers and researchers in designing future research and allocating funds involving oCPs research.

关键词： Bibliometric China Ecosystem organochlorine pesticides Web of science

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以食物为基础的膳食模式与慢性疾病预防

英国医学杂志中文版 2021年第3期24卷 133-138页

作者： Matthias B Schulze Miguel A Martínez-González Teresa T fung alice H Lichtenstein Nita G forouhi 陈夏燕(译) 王燕芳(译) 武阳丰(校) Department of Molecular Epidemiology German Institute of Human Nutrition Potsdam-RehbrueckeNuthetalGermany University of Potsdam Institute of Nutritional SciencesNuthetalGermany NutriAct—Competence Cluster Nutrition Research Berlin-Potsdam Germany Department of Preventive Medicine and Public Health University of Navarra-ⅠdiSNAPamplonaSpain CIBER fisiopatología de la obesidad y Nutrición(CIBERobn) Instituto de Salud Carlos III(ISCIII)Spain Department of Nutrition Harvard T H Chan School of Public HealthBostonUSA Department of Nutrition Simmons CollegeBostonUSA friedman School of Nutrition Science and Policy Tufts UniversityBostonUSA Cardiovascular Nutrition Laboratory Jean Mayer USDA Human Nutrition Research Center on Aging at Tufts UniversityBostonUSA Medical Research Council Epidemiology Unit University of CambridgeCambridgeUK 北京大学临床研究所

Matthias B Schulze及其同事讨论了目前已知的膳食模式与癌症、冠心病、卒中及2型糖尿病的关联,重点在仍不确定的领域和未来的研究方向。

关键词：膳食模式 2型糖尿病慢性疾病冠心病

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猪塞内卡病毒感染的最新研究进展

国外畜牧学（猪与禽） 2019年第2期39卷 19-21页

作者：唐彩琰张配配 Raquel A.Leme alice f.Alfieri Amauri A.Alfieri

A型塞内卡病毒(SenecavirusA,SVA)是一种正义单链RNA病毒,属于小核糖核酸病毒科(Picornaviridae)塞内卡病毒属(Senecavirus)。该病毒自1988年以来在美国的猪群中悄然流行。加拿大和美国分别于2007年和2012年报告了该病毒相关的水疱性病... 详细信息

A型塞内卡病毒(SenecavirusA,SVA)是一种正义单链RNA病毒,属于小核糖核酸病毒科(Picornaviridae)塞内卡病毒属(Senecavirus)。该病毒自1988年以来在美国的猪群中悄然流行。加拿大和美国分别于2007年和2012年报告了该病毒相关的水疱性病例。自2014年年末和2015年年初以来,有关不同生产阶段的猪群暴发塞内卡病毒感染的报告越来越多,巴西、中国和泰国都在各自的猪群中检测到了该病毒。就现有的塞内卡病毒感染和疾病最新资料而言,2015年可能是该病毒流行病学上的一个分水岭。该病毒的地理分布、受影响猪群所处的生产阶段、感染引发的临床症状以及疾病的严重性都可以充实上述假设。本综述将介绍当前,尤其是近2年有关塞内卡病毒感染及其所引发疾病的知识,并将探讨塞内卡病毒的流行病学、致病力、宿主免疫反应、诊断方法以及预防和控制措施。展望部分则集中于人们对塞内卡病毒完整进化的流行病学和致病性数据的需求以及对其感染进行快速诊断的可能性。其在养猪业中固有的健康风险不容忽视。

关键词：猪小核糖核酸病毒塞内卡谷病毒突发疾病水疱病初生仔畜死亡率

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猪塞内卡病毒感染的最新研究进展(续3)

国外畜牧学（猪与禽） 2019年第5期39卷 10-11页

作者：唐彩琰张配配 Raquel A.Leme alice f. Alfieri Amauri A.Alfieri

目前养猪界尚无可用的疫苗或治疗方法用于塞内卡病毒感染,文章主要介绍塞内卡病毒的预防控制管理和未来愿景。

关键词：猪塞内卡病毒水疱性疾病