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Neural Regeneration Research 2016年第11期11卷 1756-1757页

作者： creed m.stary Department of Anesthesiology Perioperative & Pain MedicineStanford University School of Medicine

Acute cerebral ischemia can occur secondary to embolism, cardiac arrest, hemorrhage, traumatic brain injury, edema, vascular compression, or any physiologic condition resulting in low cardiac output state. Survivors o... 详细信息

关键词： Exploring and exploiting unique properties of the hippocampal dentate gyrus for post-stroke therapy VDAC

Adult neurogenesis from reprogrammed astrocytes

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Neural Regeneration Research 2020年第6期15卷 973-979页

作者： Brian B.Griffiths Anvee Bhutani creed m.stary Department of Anesthesiology Pain & Perioperative Medicine Stanford University School of Medicine

The details of adult neurogenesis,including environmental triggers,region specificity,and species homology remain an area of intense investigation.Slowing or halting age-related cognitive dysfunction,or restoring neurons lost to disease or injury represent just a fraction of potential therapeutic applications.New neurons can derive from stem cells,pluripotent neural progenitor cells,or non-neuronal glial cells,such as astrocytes.Astrocytes must be epigenetically"reprogrammed"to become neurons,which can occur both naturally in vivo,and via artificial exogenous treatments.While neural progenitor cells are localized to a few neurogenic zones in the adult brain,astrocytes populate almost every brain structure.In this review,we will summarize recent research into neurogenesis that arises from conversion of post-mitotic astrocytes,detail the genetic and epigenetic pathways that regulate this process,and discuss the possible clinical relevance in supplementing stem-cell neurogenic therapies.

关键词： astrocyte brain dedifferentiation development disease glia injury neurogenesis

Serum prealbumin as an effective prognostic indicator for determining clinical status and prognosis in patients with hemorrhagic stroke

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Neural Regeneration Research 2017年第7期12卷 1097-1102页

作者： Shen-qi Zhang Bin Peng creed m.stary Zhi-hong Jian Xiao-xing Xiong Qian-xue Chen Department of Neurosurgery Renmin Hospital of Wuhan University Wuhan Hubei Province China Department of Neurology Renmin Hospital of Wuhan University Wuhan Hubei Province China Department of Anesthesiology Stanford University School of Medicine Palo Alto CA USA

Serum prealbumin is a recognized marker of malnutrition,but its prognostic role in patients with hemorrhagic stroke remains unclear.In this study,we retrospectively reviewed the records of 105 patients with hemorrhagic stroke admitted to Renmin Hospital of Wuhan University,China,from January to December 2015.We collected demographic and radiological data,and recorded serum prealbumin levels at admission and on days 1,3,6,9,and 14-21.The existence of infections and gastrointestinal hemorrhage,and clinical condition at discharge were also recorded.Serum prealbumin levels during hospitalization were significantly lower in patients with infections compared with those without infections,and also significantly lower in patients with gastrointestinal hemorrhage compared with those without.Serum prealbumin levels at discharge were significantly higher in patients with good recovery than in those with poor recovery.We conclude that regular serum prealbumin measurements in patients with hemorrhagic stroke may be a useful indicator for determining clinical status and prognosis,which may therefore help to guide clinical decision-making.

关键词： nerve regeneration prealbumin hemorrhagic stroke infection gastrointestinal hemorrhage prognostic indicator prognosis neural regeneration

Influence of Zn^(2+)or Cu^(2+) on Reduction and Recalcination Behavior of Fe_2TiO_5

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Journal of materials Science & Technology 2007年第5期23卷 697-702页

作者： m.Bahgat m.H.Khedr H.S.Abdelmaksoud CmRDI P.O.Box 87-HelwanCairoEgypt Chemistry Department Faculty of ScienceBenisuef UniversityEgypt

Fe2O3, TiO2, CuO and ZnO powders were mixed according to the formula of （1-x）TiO2 xCuO-Fe2O3 or （1-x）TiO2 xZnO-Fe2O3 （x=0, 0.2 0.4, 0.6, 0.8, 1）, and well ball-milled with H2O for 3 h to ensure homogeneity of the powdered solids, then fired at 1200℃ for 4 h. The fired samples were reduced at 500℃ with hydrogen gas. The reduced samples were subjected to recalcination at 500℃ in CO2 atmosphere. Both of fired, reduced and calcined samples were characterized by X-ray diffraction, vibrating sample magnetometry, reflected light microscopy and scanning electron microscopy. Different phases were formed after firing of Cu^＋2 or Zn^2＋ substituted Fe2TiO5. magnetization （Bs） of the formed phases after firing are very low corresponding to diluted magnetic semiconductors （DmS） and increases with increasing the substituted cations （Cu^＋2 or Zn^2＋）. The reduction of the fired samples enhanced the Bs values whereas the reducibility increases with increasing the Cu^＋2 or Zn^2＋ content. Samples show different tendency toward CO2 decomposition which is very important for environmental minimization for CO2.

关键词： Nanosized ferrite Titanate Reduction magnetic properties Reduction-recalcin-ation CO2 decomposition

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人肝二氢蝶啶还原酶的三个活性组分

生物化学杂志 1992年第2期8卷 225-229页

作者：陈震华沈荣森关秀华盛文璐 creedW.Abell 武汉大学化学系生物化学教研组武汉430072 美国德州大学医学院生物化学教研室

本文测定了人肝二氢蝶啶还原酶三个活性组分(Ⅰ,Ⅱ和Ⅲ)的动力学常数。对NADH来说,这三个组分几乎具有相同的Km值,对组分Ⅱ来说,二氢蝶啶还原酶对蝶啶的Km值顺序如下:醌型6,7一二甲基二氢蝶啶(qDmPH_2)>醌型6-甲基二氢蝶啶(q6mPH_2)>醌... 详细信息

本文测定了人肝二氢蝶啶还原酶三个活性组分(Ⅰ,Ⅱ和Ⅲ)的动力学常数。对NADH来说,这三个组分几乎具有相同的Km值,对组分Ⅱ来说,二氢蝶啶还原酶对蝶啶的Km值顺序如下:醌型6,7一二甲基二氢蝶啶(qDmPH_2)>醌型6-甲基二氢蝶啶(q6mPH_2)>醌型生物喋呤(qBH_2)。以qDmPH_2为底物,组分Ⅰ和Ⅱ的Km值大约比组分Ⅲ的Km值高2.5倍。所有三个组分具有不同的Vmax值,因而催化效应也不相同。每一个组分的SDS凝胶电泳均为单一谱带,相当于分子量26kD亚基。这些结果告诉我们,不同组分的DHPR在结构上有某种联系但催化效应却有差别。

关键词：二氢蝶啶还原酶蝶啶动力学常数

Habitat preferences of two sparrow species are modified by abundances of other birds in an urban environment

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Current Zoology 2016年第4期62卷 357-368页

作者： Piotr SKoRKA Katarzyna S,ERPOWSKA Andzelika HAIDT Lukasz mYCZKO Anna EKNER-GRZYB Zuzanna m. ROSIN Zbigniew KWlECNsKI Joanna SUCHODOLSKA Viktoria TAKACS Lukasz JANKOWIAK Oskar WASIELEWSKI Agnieszka GRACLIK Agata J. KRAWCZYK Adam KASPRZAK Przemystaw SZWAJKOWSKI Przemystaw WYLEGAlA Anna W. mALECHA Tadeusz mIZERA Piotr TRYJANOWSKI Institute of Nature Conservation Polish Academy of Sciences AI. Mickiewicza 33 31-120 Krakow Institute of Zoology Poznan University of Life Sciences Wojska Polskiego 71 C 66-625 Poznan Department of Forest Ecology Forest Research Institute Braci Lesej Sekocin Stary 05-090 Raszyn Oepartment of Behavioural Ecology Department of Cell Biology Faculty of Biology Adam Mickiewicz University Umultowska 89 61-614 Poznan Zoological Garden Browarna 25 61-063 Poznan Department of Vertebrate Zoology and Anthropology University of Szczecin Wa ska 13 71-412 Szczecin Department of Systematic Zoology Faculty of Biology Adam Mickiewicz University Umultowska 89 61-614 Poznan Division of Rural Tourism Poznad University of Life Sciences Witosa 45/114b 61-693 Poznan Department of Animal Physiology and Biochemistry Poznan University of Life Sciences Wolynska 35 60-637 Poznan Polish Society for Nature Conservation Salamandra Stolarska 7/3 60-788 Poznan Poland

Every species has certain habitat requirements, which may be altered by interactions with other co-occurring species. These interactions are mostly ignored in predictive models trying to identify key habitat variables correlated with species population abundance/occurrence. We investigated how the structure of the urban landscape, food resources, potential competitors, predators, and interaction between these factors influence the abundance of house sparrow and the tree sparrow in sixty 25 ha plots distributed randomly across residential areas of the city of Poznań (Poland). The abundance of the house sparrow was positively correlated with the abundance of pigeons but negatively correlated with human-related food resources. There were significant interaction terms between abundances of other urban species and habitat variables in statistical models. For example, the abundance of house sparrow was negatively correlated with the abundance of corvids and tree sparrows but only when food resources were low. The abundance of tree sparrows positively correlated with density of streets and the distance from the city center. The abundance of this species positively correlated with the abundance of corvids when food resources were low but negatively correlated at low covers of green area. Our study indicates that associations between food resources, habitat covers, and the relative abundance of two sparrow species are altered by the abundance of other urban species. Competition, niche separation and social facilitation may be responsible for these interactive effects. Thus, biotic interactions should be included not only as an additive effect but also as an interaction term between abundance and habitat variables in statistical models predicting species abundance and occurrence.

关键词： landscape ecology public information spatial autocorrelation urban ecosystems.

Ecology,growth and management of black locust(Robinia pseudoacacia L.),a non-native species integrated into European forests

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Journal of Forestry Research 2020年第4期31卷 1081-1101页

作者： Valeriu-Norocel Nicolescu Károly Rédei William L.mason Torsten Vor Elisabeth Poetzelsberger Jean-Charles Bastien Robert Brus Tibor Bencat martinaDodan Branislav Cvjetkovic Sinisa Andrasev Nicola La Porta Vasyl Lavnyy Dejan mandzukovski Krasimira Petkova Dusan Rozenbergar Radoslaw Wasik Godefridus m.J.mohren maria Cristina monteverdi Brigitte musch marcin Klisz Sanja Peric Ljiljana Keca Debbie Bartlett Cornelia Hernea michal Pástor Faculty of Silviculture and Forest Engineering Transylvania University of Brasov500123 BrasovRomania Forest Research Institute Budapest 9600Hungary Forest Research Northern Research StationRoslinMidlothian EH259SYUK Faculty of Forest Sciences and Forest Ecology University Georg-August37077 GöttingenGermany University of Natural Resources and Life Sciences Peter Jordan Str.821190 ViennaAustria INRA Centre Val de Loire 45075 ArdonOrléansFrance Biotechnical Faculty University of Ljubljana1000 LjubljanaSlovenia Technical University Ul.T.G.Masaryka 2496053 ZvolenSlovakia Croatian Forest Research Institute 10450 JastrebarskoCroatia Faculty of Forestry University of Banja LukaStepe Stepanovica 75a78000 Banja LukaBosnia and Herzegovina Institute of Lowland Forestry and Environment AntonaČehova 13dNovi Sad 21000Serbia Fondazione Edmund mach Via E.Mach 138010 S.Michele a/AdigeItaly Department of Silviculture Ukrainian National Forestry UniversityL’viv 79057Ukraine Public enterprise makedonski sumi Pero Nakov bbKosta Novakovic 12Skopje 1000Republic of North Macedonia University of Forestry 1797 Sofi aBulgaria Faculty of Forestry University of Agriculture31-425 KrakówPoland Department of Forest Ecology and Forest management Group University of Wageningen6700 WageningenThe Netherlands Consiglio per la ricerca in agricoltura e l’analisi dell’economia agraria Viale Santa Margherita8052100 ArezzoItaly UmR 0588 INRA ONF BioForA2163 Avenue de la Pomme de PinCS 4000145075 ArdonOrléans CedexFrance Forest Research Institute Braci Lesnej Streetno.305-090 Sekocin StaryRaszynPoland Faculty of Forestry University of Belgrade1Kneza Viseslava StreetBelgrade 11030Serbia Faculty of Engineering and Science University of GreenwichCentral AvenueChatham MaritimeLondon ME44TBUK Faculty of Horticulture and Forestry Banat’s University of Agricultural Sciences and Veterinary Medicine300645 TimisoaraRomania National Forest Centre Forest Research InstituteT.G.Masaryka 2296092 ZvolenSlovakia

Black locust(Robinia pseudoacacia L.),a species native to the eastern North America,was introduced to Europe probably in 1601 and currently extends over2.3×10~6 ha.It has become naturalized in all sub-mediterranean and temperate regions rivaling Populus spp.as the second most planted broadleaved tree species worldwide after Eucalyptus spp.This wide-spreading planting is because black locust is an important multipurpose species,producing wood,fodder,and a source of honey as well as bio-oil and biomass.It is also important for carbon sequestration,soil stabilization and re-vegetation of landfills,mining areas and wastelands,in biotherapy and landscaping.In Europe,black locust is drought tolerant so grows in areas with annual precipitation as low as 500-550 mm.It tolerates dry,nutrient poor soils but grows best on deep,nutrient-rich,well-drained soils.It is a fast-growing tree and the height,diameter and volume growth peak before the age of 20.It mostly regenerates vegetatively by root suckers under a simple coppice system,which is considered the most cost-effective management system.It also regenerates,but less frequently,by stool sprouts.Its early silviculture in production forests includes release cutting to promote root suckers rather than stool shoots,and cleaning-respacing to remove low-quality stems,reduce the number of shoots per stool,and adjust spacing between root suckers.In addition,early,moderate and frequent thinning as well as limited pruning are carried out focusing on crop trees.The species is regarded as invasive in several European countries and its range here is expected to expand under predicted climate changes.

关键词： Black locust Ecology Invasiveness Climate change management