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Phenotypic plasticity Gasterosteus aculeatus ence in captivity of the threespine stickleback telencephalon in response to experi-

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Current Zoology 2012年第1期58卷 189-210页

Threespine stickleback were used to examine phenotypic plasticity of telencephala in relation to inferred ecology. Fish from derived, allopatric, freshwater populations were sampled from three shallow, structurally complex lakes with ben- thic-foraging stickleback （benthics） and from three deep, structurally simple lakes with planktivores （limnetics）. The telencepha- Ion of specimens preserved immediately after capture （field-preserved）, field-caught fish held in aquaria for 90 days （lab-held）, and lab-bred fish from crosses and raised in aquaria were compared. Field-preserved sea-run （ancestral） stickleback were col- lected from two separate sites, and parents of lab-bred sea-run stickleback were collected from one of these sites. In field-preserved and lab-held fish, the telencephala of limnetics exhibited triangular dorsal shape, while those of benthics and sea-run fish had rounder shapes. No such pattern was detected in lab-bred fish. Within each treatment type, benthics had larger relative telencephalon sizes, using overall brain size as the covariate, than limnetics. Among field-preserved samples, sea-run fish had smaller telencephalon sizes than lake fish. Intra-population analyses of lake samples showed that field-preserved fish consis- tently had larger relative telencephalon sizes than lab-bred fish. The opposite was true of the sea-run population. In a separate study using one benthic population and one limnetic population, samples were preserved in the field immediately or held in the lab for 30, 60, and 90 days before they were sacrificed. In both populations, the telencephalon shapes of lab-held fish were similar to those of field-preserved fish but became progressively more like lab-bred ones over 90 days. In contrast, relative telencephalon size decreased dramatically by 30 days after which there was littie change. In freshwater threespine stickleback, the telencephalon exhibits considerable phenotypic plasticity, which was probably present in the an

关键词： telencephalon Phenotypic plasticity Brain plasticity Spatial learning Adaptive radiation Hippocampus

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Histological studies on the telencephalon of Hynobius leechii at the metamorphosis phase and the adult phase

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Neuroscience Bulletin 2009年第4期25卷 196-202页

作者：周莹莹邵然梁传成王勇王丽文沈阳师范大学化学与生命科学学院沈阳110034 沈阳师范大学实验中心沈阳110034

Objective To investigate the telencephalon developmental characteristics of Hynobius leehii, and enrich the research data of comparable neurobiology and nervous system development of amphibian. Methods HE staining and Nissl staining methods were used to study the telencephalon histological structure of Hynobius leechii at both the metamorphosis and the adult phases, and to explore the developmental phases of telencephalon. Results The olfactory bulb could be roughly divided into 6 layers from lateral to medial. The lateral cerebral ventricles at the metamorphosis phase were smaller than those at the adult phase, and there were no clear borderlines between the primordial pallium and the primordial hippocampus, or between the primordial pallium and the primordial piriform area. Moreover, the cells in the primordial piriform area were more closely distributed than those in the primordial hippocampus or the primordial pallium. Compared with those at the adult phase, cells in nucleuses at the metamorphosis phase were larger in number and more closely distributed. Conclusion The telencephalon of Hvnobius leehii at the metamorphosis phase has generally formed the adult structure, however, it is still at a transition state of differentiation to maturity during the development of Hynobius leehii.

关键词： Hynobius leehii telencephalon histology metamorphosis phase adult phase

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Morphological and histological studies on the telencephalon of the salamander Onychodactylus fischeri

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Neuroscience Bulletin 2007年第3期23卷 170-174页

作者：王欢欢李丽妍王丽文梁传成沈阳师范大学化学与生命科学学院沈阳110034

Objective In order to probe into the morphological and histological characteristics of the telencephalon of Onychodactylusfischeri, and to enrich the comparable neurobiology. Method HE-staining method was used to describe the characters of the telencephalon of Onychodactylus fischeri. Results The olfactory bulb of Onychodactylus fischeri locates in the rastral and lateral to the cerebral hemisphere, and six distinct layers can be identified from the lateral to the medial, quite similar to Batrachuperus tibetanus and Hynobius leechii. In the cerebrum, the primordial hippocampus developed better than the primordial piriform. The former belongs to archipallium and the latter is paleopallium. Ventral to the primordial hippocampus there is a septal area which cannot be divided into medial and lateral parts. In the ventrical wall, there is neither medial limiting sulcus nor lateral limiting sulcus to saperate the primordial hippocampus and the septal area, or the primordial piriform and the corpus striatum. The corpus striatum of Onychodactylusfischeri is paleostriatum. There is choroids plexus anterior in the lateral ventricle. The cell group that located at two sides of the third ventricle is the amygdale. Besides, the shape and size of neurons within the telencephalon are poorly differentiated. Conclusion Onychodactylusfischeri is a relatively primitive type in the amphibian. The present data will help us to further understand the nerve system of tailed amphibian.

关键词： salamander telencephalon morphology histology

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Choline acetyltransferase expressed by radial neuroglia cells in the development of telencephalon: A validated study

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Neural Regeneration Research 2007年第2期2卷 70-73页

作者： Li Zhou Lingling Ding Zhisuo Xiao Yuanyuan Qin Guibin Li Department of Histology and Embryology Basic Medical College of Jilin University Changchun 130021 Jilin Province China

BACKGROUND： Cholinergic neuron directly participants in human motion, learning and memory and is a target cell for multiple degenerative diseases of central nervous system. OBJECTIVE： To investigate whether the mitotic cell is the radial glial cell expressing choline acetyltransferase （CHAT） in ventricle zone （VZ） of telencephalon and whether cholinergic neuron is derived from radial glial cell in ventricle zone of telencephalon. DESIGN： Observational study. SETTING： Department of Histology and Embryology, Basic Medical College of Jilin University. MATERIALS： Nine healthy Wistar rats included 6 females and 3 male. Male and female rats were mated routinely, and the day when spermatozoa or vaginal plug were found was regarded as embryonic 0 （E0）. Primary monoclonal antibodies ChAT and vimentin were provided respectively by Wuhan Boster Company, and Biogenex Company, USA. METHODS： The experiment was carried out in the Laboratory of Cell Culture and Immunohistochemistry, Department of Histology and Embryology from march 2002 to January 2003. Firstly, fluorescence-activated cell sorting （FACS） was used to confirm the time of generation of cholinergic neuron; secondly, telencephalons of rats at embryonic 14 days （E14） were performed coronary sections, then immunohistochemistry double staining for vimentin （a protein marker of radial neuroglia cell） and ChAT （a protein marker of cholinergic neuron） were used to test whether ChAT was expressed in the radial neuroglia cells. MAIN OUTCOME MEASURES：（1） Fluorescence-activated cell numbers of ChAT in telencephalon; （2） results of immunohistochemistry double staining. RESULTS： It is confirmed using by flow cytometer that embryogenesis time of cholinergic neuron was at E12, and shown the population of cells in VZ of dorsal telencephalon of E14 rat co-expressed vimentin and ChAT through immunohistochemistry double staining. A lot of vimentin-positive cells and ChAT-positive cells respectively were observed in VZ of later

关键词： telencephalon choline o-acetyltransferase vimentin immunohistochemistry

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Morphological and histological studies on the telencephalon of the salamander Onychodactylus fischeri at different stages after embryo

Morphological and histological studies on the telencephalon ...

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中国神经科学学会第四次会员代表大会暨第八届全国学术会议

作者： Ying-Ying ZHOU~1,Huan-Huan WANG~1,Li-Jie GUO~1,Ran SHAO~1,Li-Wen WANG~(1,*) 1 College of Chemistry and Life Science,Shenyang Normal University,Shenyang 110034 China

＜正＞Objective To dissect the developmental process of never system in amphibian and identify the classified status of salamander Onychodactylus fischeri in the *** The morphological and histological investigation on telencephalon of salamander Onychodactylus fischeri at different developmental stages were conducted using paraffin section technique and HE-staining *** The morphological investigation showed that the telencephalon of Onychodactylus fischeri in each age group is composed of a hemisphere and an olfactory bulb,and the latter locates at the ventrolateral portion of the rostral *** line between the olfactory bulb and the hemisphere is obscure in dorsal view of the *** GroupⅠtoⅣ,the proportion of telencephalon length to brain length increased gradually, whereas that of brain length to body length exhibited a decreasing *** histology,lamination of the olfactory bulb in larva was not obvious,but in subadult and adult individuals,the multi-layered structure was distinct and six layers can be identified from the lateral portion to the medial portion,including stratum nervosum,glomerular layer,external plexiform layer,mitral cell layer,internal plexiform layer and granule cell *** could be easily distinguished from cells in primordial piriform *** general pallium which locates at the most dorsal extent of the ventricle,is difficult to distinguish from the dorsal primordial hippocampus medially and from the primordial piriform *** in the primordial general pallium equably distribute in GroupⅠ,ⅡandⅢ,that is,cells take up almost the whole region in the dorsal part of the *** in the telencephalon of GroupⅣ,ⅤandⅥ,neurons of the primordial general pallium distribute in a confined area of the dorsal *** far as the thickness of area where cells distribute in the primordial general pallium,GroupⅠis similar with GroupⅡ,which is more than 100 ***Ⅲis 162μm

关键词： salamander development telencephalon morphology histology

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Electrophysiological characteristics of telencephalon of the salamander Hynobius leechii in process of occurrence and development

Electrophysiological characteristics of telencephalon of the...

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中国神经科学学会第十届全国学术会议

作者： Yan ZHENG Min SUN Chuan-Cheng LIANG Li-Wen WANG College of Chemistry and Life Science Shenyang Normal University

Objective To probe into electrophysiological characteristics of telencephalon of the salamander Hynobius leechii in process of occurrence and *** Microelectrode technique was used to record extracellularly spontaneous electrical activities of neurons in telencephalon of Hynobius leechii different periods in occurrence and *** The occurrence of telencephalon refers to the period when the nervous system from the initial neural tube formation to the emergence of telencephalon tissue morphological characteristics,containing the early phase of tail bud,the phase of outside-gill and the heart palpitates phase were recorded to the 22,15 and 11discharge *** early phase of tail bud has two kinds of discharge types-single spontaneous firing and consecutive single spontaneous firing,single spontaneous firing is main and accounting for 73%.The phase of outside-gill and the heart palpitates phase both have three kinds of discharge types- single spontaneous firing,consecutive single spontaneous firing and burst spontaneous *** single spontaneous firing is mainly for the phase of outside-gill,and accounting for 73%.The single spontaneous firing and consecutive single spontaneous firing are main for the heart palpitates phase,and accounting for 73%.The development of telencephalon is the emergence of telencephalon tissue morphological characteristics to mature stage,containing with the incubate phase,forelimbs bud phase,hind limb bud phase,metamorphosis phase and adult *** respectively,were recorded to the 24,41,15,55and 70 discharge *** incubate phase and the forelimbs bud phase both have three kinds of discharge types,single spontaneous firing is main and accounting for 48%and 66%*** hind limb bud phase has four kinds of discharge types,single spontaneous firing is main and accounting for 53%.The metamorphosis phase and the adult phase both have five kinds of discharge types,single spontaneous firing is

关键词： Hynobius leechii telencephalon occurrence development Electrophysiological characteristics

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Occurrence and Development of Spontaneous Firings in the telencephalon Neurons of Hynobius leechii

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Agricultural Science & Technology 2014年第8期15卷 1359-1363页

作者：郑妍王丽文李丽妍孙敏梁传成沈阳师范大学化学与生命科学学院辽宁沈阳110034 辽宁省教育厅生物系统进化与农业生态重点实验室辽宁沈阳110034 黄河科技学院医学院河南郑州450063

This study aimed to probe into occurrence and development of spontaneous firings in the telencephalon neurons of Hynobius leechi . [Method] Mi-croelectrode technique was used to record extracellular spontaneous electrical activi-ties of the telencephalon neurons of H. leechi in occurrence and development. [Re-sult] There were three discharge types in the occurrence of telencephalon in H. leechi , with single spontaneous firing and consecutive single spontaneous firing being main-ly apparent. And among the five types in the development of telencephalon, the main discharge type was single spontaneous firing. Along with the occurrence and development of telencephalon, the extracellular discharge intensity enhanced gradual-ly, the discharge duration increased, and the spontaneous firing frequency accelerat-ed, al of which reached the maximum in the adult phase. Fol owing the process of occurrence and development, other discharge types appeared successively. [Conclu-sion] Along with the occurrence and development of the telencephalon in H. leechi , the neuronal excitability increases step by step and the neuronal electrical activities diversify gradual y.

关键词： Hynobius leechi telencephalon Occurrence Development Sponta-neous firings

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Telencephalic stab wound injury induces regenerative angiogenesis and neurogenesis in zebrafish:unveiling the role of vascular endothelial growth factor signaling and microglia

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Neural Regeneration Research 2025年第10期20卷 2938-2954页

作者： Danielle Fernezelian Philippe Rondeau Laura Gence Nicolas Diotel Universitéde La Réunion INSERMUMR 1188Diabète athérothrombose Thérapies Réunion Océan Indien(DéTROI)Saint PierreLa RéunionFrance

After brain damage,regenerative angiogenesis and neurogenesis have been shown to occur simultaneously in mammals,suggesting a close link between these ***,the mechanisms by which these processes interact are not well *** this work,we aimed to study the correlation between angiogenesis and neurogenesis after a telencephalic stab wound *** this end,we used zebrafish as a relevant model of neuroplasticity and brain repair ***,using the Tg(fli1:EGFP×mpeg1.1:mCherry)zebrafish line,which enables visualization of blood vessels and microglia respectively,we analyzed regenerative angiogenesis from 1 to 21 days *** parallel,we monitored brain cell proliferation in neurogenic niches localized in the ventricular zone by using *** found that after brain damage,the blood vessel area and width as well as expression of the fli1 transgene and vascular endothelial growth factor(vegfaa and vegfbb)were *** the same time,neural stem cell proliferation was also increased,peaking between 3 and 5 days post-lesion in a manner similar to angiogenesis,along with the recruitment of ***,through pharmacological manipulation by injecting an anti-angiogenic drug(Tivozanib)or Vegf at the lesion site,we demonstrated that blocking or activating Vegf signaling modulated both angiogenic and neurogenic processes,as well as microglial ***,we showed that inhibition of microglia by clodronate-containing liposome injection or dexamethasone treatment impairs regenerative neurogenesis,as previously described,as well as injury-induced *** conclusion,we have described regenerative angiogenesis in zebrafish for the first time and have highlighted the role of inflammation in this *** addition,we have shown that both angiogenesis and neurogenesis are involved in brain repair and that microglia and inflammation-dependent mechanisms activated by Vegf signaling are important contributors to

关键词： angiogenesis cerebral damage inflammation neurogenesis stab wound telencephalon vascular endothelial growth factor zebrafish

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Role of brain-derived neurotrophic factor during the regenerative response after traumatic brain injury in adult zebrafish

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Neural Regeneration Research 2018年第6期13卷 941-944页

作者： Pietro Cacialli Antonio Palladino Carla Lucini Department of Veterinary Medicine University of Naples Federico Ⅱ

Several mammalian animal models of traumatic brain injury have been used, mostly rodents. However, reparative mechanisms in mammalian brain are very limited, and newly formed neurons do not survive for long time. The brain of adult zebrafish, a teleost fish widely used as vertebrate model, possesses high regenerative properties after injury due to the presence of numerous stem cells niches. The ventricular lining of the zebrafish dorsal telencephalon is the most studied neuronal stem cell niche because its dorso-lateral zone is considered the equivalent to the hippocampus of mammals which contains one of the two constitutive neurogenic niches of mammals. To mimic TBI, stab wound in the dorso-lateral telencephalon of zebrafish was used in studies devoted to fish regenerative properties. Brain-derived neurotrophic factor, which is known to play key roles in the repair process after traumatic brain lesions, persists around the lesioned area of injured telencephalon of adult zebrafish. These results are extensively compared to reparative processes in rodent brain. Considering the complete repair of the damaged area in fish, it could be tempting to consider brain-derived neurotrophic factor as a factor contributing to create a permissive environment that enables the establishment of new neuronal population in damaged brain.

关键词： brain-derived neurotrophic factor neurotrophins neurotrophic factors brain telencephalon teleost fish traumatic brain injury lesion neurons

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Defining the telencephalic pallial and subpallial progenitor domains and rostral migratory stream in the fetal human brain

Defining the telencephalic pallial and subpallial progenitor...

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中国神经科学学会第九届全国学术会议暨第五次会员代表大会

作者： Congmin WANG~1,Tong MA~1,Yan YOU~1,Zhengang YANG~(1,*) 1 Institutes of Brain Science and State Key Laboratory of Medical Neurobiology,Fudan University,Shanghai 200032, China

＜正＞The human telencephalon,comprising a large number of distinct types of neurons,is considered the most complex biological structure known to ***,our understanding of the origin of neural diversity in the mammalian telencephalon has been largely obtained from ***,we have revealed that the expression patterns of several transcription factors in the developing human telencephalon are similar to that of the murine brain,which enables us to successfully identify four main proliferative domains:the dorsal telencephalon ventricular/subventricular zone and the lateral,medial,caudal ganglionic ***,we also demonstrate the existence and general configuration of the rostral migratory stream in the fetal human *** study generates a molecular map of the different progenitor domains present in the developing human telencephalon and should serve as a basis for a better understanding of the generation of neuronal diversity in the human forebrain.

关键词： human telencephalon neural progenitors pallium ganglionic eminences subventricular zone rostral migratory stream

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