Journal fur Hirnforschung最新文献_第2页

Eye muscle nerves nuclear size in a breed of domestic rabbits with floppy ears. 一种耳朵松软的家兔的眼肌神经核大小。

Journal fur Hirnforschung Pub Date : 1999-01-01

G Rehkämper, H D Frahm, M Dion

引用次数: 0

Axon collaterals projection from nucleus reticularis tegmenti pontis onto the cerebellar paramedian lobule in the rabbit: a fluorescent double labelling study. 兔桥织网状核轴突侧支投射到小脑旁脉小叶:荧光双标记研究。

Journal fur Hirnforschung Pub Date : 1999-01-01

B Mierzejewska-Krzyzowska

{"title":"Axon collaterals projection from nucleus reticularis tegmenti pontis onto the cerebellar paramedian lobule in the rabbit: a fluorescent double labelling study.","authors":"B Mierzejewska-Krzyzowska","doi":"","DOIUrl":"","url":null,"abstract":"Double labelling method with retrograde transport of fluorescent tracers (Fast Blue; FB and Diamidino Yellow; DY) was employed in the rabbit to investigate whether neurones of the nucleus reticularis tegmenti pontis (NRTP) give off axon collaterals to the cerebellar paramedian lobule (PML) of both sides. Following injections to various regions of the homotopic or heterotopic sublobules of the left (FB) and right (DY) PML cortex, distribution of double labelled neurones within NRTP was analyzed. NRTP of the rabbit consists of a medial principal part (the nucleus papillioformis: PLF) and smaller lateral part (the processus tegmentosus lateralis: PTL). Within PLF three subdivisions are to be distinguished: the dorsomedial part -- zone A, the main part -- zone B and the ventrolateral part -- zone C. The present study in the rabbit indicated collateral projections from neurones in some NRTP regions to the both PML. The cells of origin of these projections were located prominently through the rostrocaudal extent of zone B. Projections from zone A were sparse and those from zone C were absent. Moreover, a weak projection arose mainly from the caudal aspect of PTL. It is concluded that the rostral (e and f) and middle (c and d) sublobules are the main targets for the NRTP-PML branching projections.","PeriodicalId":14790,"journal":{"name":"Journal fur Hirnforschung","volume":"39 3","pages":"321-33"},"PeriodicalIF":0.0,"publicationDate":"1999-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"21397981","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

PCNA positivity in the telencephalic matrix areas in the adult of a newt, Triturus carnifex. 肉三角蝾螈成年后端脑基质区PCNA阳性。

Journal fur Hirnforschung Pub Date : 1999-01-01

V Margotta, A Morelli, L Alfei

{"title":"PCNA positivity in the telencephalic matrix areas in the adult of a newt, Triturus carnifex.","authors":"V Margotta, A Morelli, L Alfei","doi":"","DOIUrl":"","url":null,"abstract":"The Proliferating Cell Nuclear Antigen (PCNA) is an auxiliary protein of the DNA polymerase delta, belonging to the cyclin family, which attains appreciable levels only in those phases of the cell cycle in which DNA synthesis occurs. Using an immunocytochemical method that exploits this proliferative marker, we observed a certain PCNA positivity in the telencephalon of normal adult individuals of Triturus carnifex. The elements that display this peculiarity occupy an ependymal and/or sub-ependymal site. They are located in the anterior portion of the telencephalon only at the dorsal level and tend to decrease in number until they disappear temporarily as the intermediate portion is approached. In the posterior portion of the telencephalon, the dorsal labelling patterns, the size of which is however smaller than that observed more anteriorly, reappear and in the ventral region a large population of labelled cells appears. Then, again proceeding in a caudal direction, while the PCNA-positive elements lying dorsally diminish and disappear, they persist in the ventral region and gradually taper off until they final disappear where the telencephalic ventricles come together. This immunocytochemical picture supports the findings of other authors in adult Urodeles under both normal and experimental conditions (with classical and autoradiographic histological techniques) concerning the persistence of the telencephalon in dorsal and ventral germinative areas responsible for physiological and plastic neurogenetic events.","PeriodicalId":14790,"journal":{"name":"Journal fur Hirnforschung","volume":"39 4","pages":"525-30"},"PeriodicalIF":0.0,"publicationDate":"1999-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"21686998","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Infraorbital nerve transection increases NADPH-diaphorase activity in the rat mesencephalic trigeminal nucleus. 眶下神经横断增加大鼠中脑三叉神经核nadph - diaphase活性。

Journal fur Hirnforschung Pub Date : 1999-01-01

J M De Gandarias, P L Mendez, L Vegas, E Echevarría, J L Maza, L Casis

引用次数: 0

Cell-cell coupling in cultures of striatal and cortical astrocytes of the monkey Cebus apella. 猴无鳞头纹状体和皮质星形细胞的细胞-细胞偶联培养。

Journal fur Hirnforschung Pub Date : 1999-01-01

S Gayol, T Pannicke, A Reichenbach, J A Colombo

引用次数: 0

The pigmentarchitectonic divisions and neuronal types of the central nucleus and intercalated masses of the human amygdala. 人类杏仁核中央核和插层团块的色素结构分裂和神经元类型。

Journal fur Hirnforschung Pub Date : 1999-01-01

S Urban, D M Yilmazer-Hanke

{"title":"The pigmentarchitectonic divisions and neuronal types of the central nucleus and intercalated masses of the human amygdala.","authors":"S Urban, D M Yilmazer-Hanke","doi":"","DOIUrl":"","url":null,"abstract":"The central nucleus of the amygdala is a high level limbic center which controls vegetative functions and is involved in neurodegenerative diseases. In the present study, the central nucleus and intercalated masses of the human amygdala have been investigated with the pigment Nissl technique. The central nucleus of the amygdala consists of a main body surrounded by fiber tracts and accessory islands located dorsal to the main body. In the main body, one can distinguish the medial central nucleus with heavily pigmented neuronal types and the lateral central nucleus, which is composed of three subnuclei: the centro-lateral central nucleus has heavily and sparsely pigmented neuronal types, the apico-lateral central nucleus sparsely pigmented neuronal types and the capsular-lateral central nucleus heavily pigmented neuronal types. Based on the pigmentarchitecture, the accessory islands of the central nucleus are part of the apico-lateral and capsular-lateral central nuclei. Altogether, there are eight neuronal types in the medial central nucleus, while four to six neuronal types are found in the subnuclei of the lateral central nucleus. In the intercalated masses, there are four neuronal types, and the predominating cell types are small and sparsely pigmented. In conclusion, the pigment Nissl stain shows that the lateral central nucleus of the human amygdala has three subnuclei, and the accessory islands are part of two of these subnuclei. Furthermore, numerous neuronal types are identified within the central nucleus and intercalated masses of the amygdala, which may reflect the variability in their neurochemical characteristics.","PeriodicalId":14790,"journal":{"name":"Journal fur Hirnforschung","volume":"39 3","pages":"311-9"},"PeriodicalIF":0.0,"publicationDate":"1999-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"21397980","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Establishment of the FMRFamide-immunoreactive olfacto-retinalis pathway during ontogeny of the rainbow trout (Oncorhynchus mykiss). 虹鳟个体发育过程中fmrfamily -免疫反应性嗅觉-视网膜通路的建立。

Journal fur Hirnforschung Pub Date : 1999-01-01

C R Malz, U Kindermann

引用次数: 0

Substance P receptor-like immunoreactive neurons in the caudal spinal trigeminal nucleus send axons to the gelatinosus thalamic nucleus in the rat. 大鼠三叉神经脊髓核尾侧P物质受体样免疫反应神经元向丘脑明胶核发送轴突。

Journal fur Hirnforschung Pub Date : 1999-01-01

Y Q Li

引用次数: 0

A light and electron microscopic study of GAT-1 positive cells in the monkey brainstem and spinal cord. 猴脑干和脊髓GAT-1阳性细胞的光镜和电镜研究。

Journal fur Hirnforschung Pub Date : 1999-01-01

C H Ng, W Y Ong

引用次数: 0

Small brain, large brain -- a quest for nature's scale-up rules. 小脑袋，大脑袋——这是对大自然按比例放大法则的探索。

Journal fur Hirnforschung Pub Date : 1999-01-01

J Prothero

{"title":"Small brain, large brain -- a quest for nature's scale-up rules.","authors":"J Prothero","doi":"","DOIUrl":"","url":null,"abstract":"A scaling model of the gyrencephalic mammalian brain, invoking identical repeating cortical units, whose number and size both increase with increasing brain size, was described previously (Prothero, 1997a,b). Each repeating unit, of microscopic dimensions, is viewed as extending from the pial membrane to the underlying white matter. The model predicts discrete scaling exponents, all integral multiples of 1/9, as a function of brain size, as follows: cortical thickness (1/9), outer cortical surface area (6/9), total (folded) cortical surface area (8/9), cortical volume (9/9), white matter volume (9/9), neuron line-count (0/9) and neuron volume density (-3/9). In the present paper extensions to the model give discrete exponents for the scaling of the cross-sectional area of the corpus callosum (6/9), for mean foliar and gyral width (each 1/9), for foliar number (2/9), for mean foliar length (3/9), for mean foliar and gyral perimeter (each 3/9) and for total foliar and total gyral length (each 5/9). The predicted scaling exponent for cross-sectional area of the corpus callosum is in reasonable agreement with the empirical observations. Needed are more precise and more extensive data on cortical folding to stringently test the model predictions relating to cortical folding. On the whole, the model is in good agreement with a diverse body of empirical data bearing on the scaling of the gyrencephalic mammalian brain.","PeriodicalId":14790,"journal":{"name":"Journal fur Hirnforschung","volume":"39 3","pages":"335-47"},"PeriodicalIF":0.0,"publicationDate":"1999-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"21397982","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0