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  • Articles  (16)
  • Immunocytochemistry  (16)
  • Springer  (16)
  • National Academy of Sciences
  • Periodicals Archive Online (PAO)
  • Springer Nature
  • Wiley-Blackwell
  • 1985-1989
  • 1980-1984  (16)
  • 1975-1979
  • 1970-1974
  • 1980  (16)
  • Medicine  (16)
  • Sociology
  • Electrical Engineering, Measurement and Control Technology
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  • Articles  (16)
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Keywords
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  • Springer  (16)
  • National Academy of Sciences
  • Periodicals Archive Online (PAO)
  • Springer Nature
  • Wiley-Blackwell
Years
  • 1985-1989
  • 1980-1984  (16)
  • 1975-1979
  • 1970-1974
Year
Topic
  • Medicine  (16)
  • Sociology
  • Electrical Engineering, Measurement and Control Technology
  • Biology  (17)
  • 1
    Electronic Resource
    Electronic Resource
    Immunocytochemical localization of somatostatin-containing neurons in the brain of Rana temporaria (1980)
    Springer
    Cell & tissue research 205 (1980), S. 43-53 
    Details
    ISSN: 1432-0878
    Keywords: Brain ; Rana temporaria ; Somatostatin-containing neurons ; Immunocytochemistry
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary The brain of the frog Rana temporaria was studied at the light microscopic level with the use of a double immunocytochemical staining method. The telencephalon, diencephalon and rhombencephalon contain somatostatin perikarya and fibers. In the telencephalon, the location of the somatostatin neurons largely corresponds to that of mammals. In the hypothalamus, the somatostatin perikarya are located in and near the magnocellular preoptic nucleus and also in the pars ventralis of the tuber cinereum. Like the somatostatin neurons of the rat hypothalamus, they form a separate subpopulation, different from the neurons producing neurohypophysial hormones. In Rana, somatostatin neurons are also present in (as well as in the vicinity of) the subfornical organ, in the thalamus, the tectum opticum, the interpeduncular nucleus and the caudal end of the roof of the calamus scriptorius. A precise localization of the perikarya of most somatostatin fibers, including those found in the median eminence and the neural lobe, was not attained.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00234441
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  • 2
    Electronic Resource
    Electronic Resource
    Immunofluorescence study of LRH-producing neurons in prosimians (Tupaia and Galago) (1980)
    Springer
    Cell & tissue research 206 (1980), S. 355-365 
    Details
    ISSN: 1432-0878
    Keywords: LRH neurons ; Prosimians (Tupaia, Galago) ; Fluorescence ; microscopy ; Immunocytochemistry
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary Reactive LRH neurons were characterized in prosimians (Tupaia and Galago) by immunofluorescence using rabbit immunesera against unconjugated synthetic LRH, or LRH conjugated with bovine serum albumin. These neurons, which vary individually in number in one species, are mainly concentrated in the rostral hypothalamus (medial preoptic area and anterior hypothalamic area) and in the lamina terminalis. In contrast to the simians and man, immunoreactive perikarya were not routinely found in the mediobasal hypothalamus of the prosimians investigated in the present study. Reactive axons of the hypothalamo-hypophyseal tract are more numerous and conspicuous in the retrochiasmatic area and in the postinfundibular eminence. They give rise to radiating collaterals ending mainly around the capillaries of the primary portal plexus of the median eminence and of the infundibular stem (where they are generally more numerous). Reactive axons of the preopticoterminal tract, originating from the perikarya of the lamina terminalis, end around the capillaries of the vascular organ or below and between the ependymal cells lining its ventricular side. In Galago a small but very distinct tract of reactive axons runs under the optic chiasma, between the lamina terminalis and the ventral labium of the infundibulum. Very fine reactive extrahypothalamic axons were observed in the posterior part of the habenular ganglia, along the preamygdaloid portion of the stria terminalis and along the blood vessels of the parolfactory area.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00237965
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  • 3
    Electronic Resource
    Electronic Resource
    Gut hormones in Salamandra salamandra (1980)
    Springer
    Cell & tissue research 211 (1980), S. 331-343 
    Details
    ISSN: 1432-0878
    Keywords: Gut hormones ; Endocrine cells ; Electron microscopy ; Immunocytochemistry ; Peptidergic innervation
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary Histological, cytochemical and immunocytochemical methods were used in light and electron microscopical studies to demonstrate the presence of a neuroendocrine system in the gut of the urodele, Salamandra salamandra. Cytochemical stains capable of detecting peptide-producing endocrine cells demonstrate cells reacting with Masson's silver (argentaffin) method, Grimelius' argyrophil silver method, masked metachromasia method and the lead haematoxylin stain. Using antisera raised to a variety of mammalian gut peptides, cells containing bombesin-, gastrin-, somatostatin-, substance P- and glucagon-like immunoreactivity were identified; vasoactive intestinal polypeptide- and substance P-like immunoreactivities were found in nerve fibres in the submucous and myenteric plexus. No immunoreactivity was detected for motilin, gastric inhibitory polypeptide, cholecystokinin or secretin. The ultrastructure of the immunoreactive cells and nerves was revealed by the semithin/thin method. All the cells identified contained numerous electrondense secretory granules, which varied in their chracteristic morphological structure from one cell type to another. The evidence collected in this study indicates that a complex neuroendocrine system regulating gut function is present in this amphibian and may have developed prior to the emergence of the phylum.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00236453
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  • 4
    Electronic Resource
    Electronic Resource
    Differentiation of embryonic hypothalamic transplants cultured on the choroidal pia in brains of adult rats (1980)
    Springer
    Cell & tissue research 205 (1980), S. 217-228 
    Details
    ISSN: 1432-0878
    Keywords: Hypothalamus (rat) ; Differentiation ; Transplant ; Histofluorescence ; Immunocytochemistry ; Autoradiography
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary Hypothalamic tissue from 16 to 18-day fetal rats was transplanted onto the choroidal pia overlying the superior colliculus in adult female rats. After survival periods of 2 weeks to 19 months, brains containing transplants were processed for monoamine fluorescence histochemistry, immunohistochemistry for three neuropeptides (LHRH, somatostatin, neurophysin), or for autoradiography in ovariectomized hosts that received [3H] estradiol. Most of the transplants survived and retained or increased in size; 14 of 25 transplants examined by fluorescence histochemistry were found to contain median eminence-like structures. In almost all of the transplants that were stained for neuropeptides, beaded processes and occasional cell bodies were observed. Although immunoreactive fibers were found near blood vessels, no palisade arrangement typical of the normal median eminence was evident. Each of the hypothalamic transplants on which steroid autoradiography was performed contained clusters of estrophilic neurons, the intensity of labeling of which was comparable to that seen in the host hypothalamus. These results indicate that many characteristic morphological and chemical features of the hypothalamus, which are not evident in the 16 to 18-day fetus, are elaborated in transplants during the survival period in the host. Transplantation of fetal hypothalamus to adult choroidal pia thus appears to be a valuable approach for studying the factors, humoral or neural, that regulate the differentiation of this brain region.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00234681
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  • 5
    Electronic Resource
    Electronic Resource
    Evidence that lipolytic peptide B occurs in the ACTH/MSH-cells of the pituitary and in the brain (1980)
    Springer
    Cell & tissue research 205 (1980), S. 349-359 
    Details
    ISSN: 1432-0878
    Keywords: Lipolytic peptide B ; Pituitary ; ACTH/MSH cells ; Brain ; Immunocytochemistry
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary Several lipid-mobilizing peptides occur in the pituitary, among them β-lipotropin and “lipolytic peptide A and peptide B”. The latter two peptides are distinct from β-lipotropin and appear to be chemically related to the neurophysins. Immunohistochemistry has now revealed that the lipolytic peptide B of the pituitary is localized in the ACTH- and MSH-cells. In addition, immunoreactive peptide B was found in axons of the posterior lobe of the pituitary. Immunoreactive peptide B was found also in nerve fibers and nerve cell bodies in the hypothalamus, particularly in the hypothalamo-hypophyseal tract and in the magnocellular neuronal system. Immunoreactive nerve fibers were numerous also in the periventricular nucleus of the thalamus. The antiserum against peptide B cross-reacts with neurophysin I, and hence, it cannot be excluded that at least part of the immunostaining in the brain reflects the presence of the latter component. However, the regional distribution of immunoreactive peptide B and neurophysin was not identical. Therefore, it is possible that authentic peptide B occurs not only in the pituitary but also in the brain.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00232277
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  • 6
    Electronic Resource
    Electronic Resource
    Localisation of pancreatic polypeptide (PP)-like immunoreactive material in neurones of the brain of the blowfly, Calliphora erythrocephala (Diptera) (1980)
    Springer
    Cell & tissue research 210 (1980), S. 101-109 
    Details
    ISSN: 1432-0878
    Keywords: Pancreatic polypeptide (PP)-like material ; Immunocytochemistry ; Neuropeptides ; Neurosecretory cells ; Calliphora erythrocephala
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary The brain of the blowfly, Calliphora erythrocephala, has been studied by means of the peroxidase-antiperoxidase immunocytochemical method, with the use of antibodies to bovine pancreatic polypeptide (BPP). A number of immunoreactive neurones have been localised, some corresponding to neurones previously identified tentatively as neurosecretory. This finding is further evidence that biologically active peptides, previously considered to be “vertebrate”, also exist in invertebrates. It also supports the concept of their evolutionary origin in nervous tissue.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00232146
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  • 7
    Electronic Resource
    Electronic Resource
    The topography of mesotocin and vasotocin systems in the brain of the domestic mallard and japanese quail: Immunocytochemical identification (1980)
    Springer
    Cell & tissue research 213 (1980), S. 37-51 
    Details
    ISSN: 1432-0878
    Keywords: Mesotocin neurons ; Vasotocin neurons ; Avian hypothalamus ; Preoptic area ; Immunocytochemistry
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary The neurosecretory systems producing mesotocin (MT) and vasotocin (VT) (the avian homologues of oxytocin and vasopressin, respectively) were characterized in the brains of the domestic mallard and Japanese quail by means of indirect immunofluorescence techniques using specific antisera. In the anterior preoptic region, including the organum vasculosum of the lamina terminalis, and at different levels of the supraoptic and paraventricular nuclei, separate mesotocin- and vasotocin-producing neurons were identified. Mesotocinergic and vasotocinergic neurons were also located in the tuberomammillary area, among the ectomammillary tract fibers. The supraoptico-neurohypophysial tract, formed by vasotocin- and mesotocincontaining axons, enters the internal zone of the median eminence and ends in the posterior lobe of the pituitary. The external zone of the rostral median eminence appears to contain vasotocin and mesotocin fibers, which terminate in close contact with the capillaries of the hypophysial portal system.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00236919
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  • 8
    Electronic Resource
    Electronic Resource
    Immunocytochemical localization of myosin in the brush border region of the intestinal epithelium (1980)
    Springer
    Cell & tissue research 205 (1980), S. 163-166 
    Details
    ISSN: 1432-0878
    Keywords: Myosin ; Intestinal epithelium ; Brush border ; Immunocytochemistry
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary Myosin was localized in rat intestinal epithelium by means of indirect immunofluorescence and immunoelectron microscopy (unlabeled antibody peroxidase method), using a specific antibody to myosin from chicken gizzard. Immunoreactivity was localized in the apical cytoplasm, where it was concentrated along the rootlets of the microvillar filament bundles and in the terminal web. A model of microvillar contraction is proposed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00234452
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  • 9
    Electronic Resource
    Electronic Resource
    Immunocytochemical localization of somatostatin in the brain of the lizard, Ctenosauria pectinata (1980)
    Springer
    Cell & tissue research 208 (1980), S. 499-505 
    Details
    ISSN: 1432-0878
    Keywords: Somatostatin-immunoreactive elements ; Brain ; Lizard ; Immunocytochemistry
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary The brain of the lizard, Ctenosauria pectinata, was studied light microscopically using an immunocytochemical staining method that is specific for neurohypophysial hormones and somatostatin. It was shown that the telencephalon and particularly the diencephalon contain somatostatin-producing perikarya, while somatostatinergic fibers occur in the entire brain. Similar to the situation in other vertebrates, somatostatin neurons in Ctenosauria pectinata form a population distinct from the neurohypophysial hormone-producing neurons. The small-sized somatostatin neurons were found in the cortex and the hypopallium of the telencephalon, and in two distinct clusters in the diencephalon: (1) ventral from, and partially overlapping with, the classical neurosecretory para ventricular nucleus; and (2) in the region of the infundibular (tuberal) nucleus. Somatostatin fibers were found among the classical neurosecretory fibers of the supraoptico-paraventricular system (tract, median eminence, neural lobe), near to and within the epiphysis, in the septum, in the vicinity of the tectum opticum and the cerebellum, and in the tegmentum.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00233881
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  • 10
    Electronic Resource
    Electronic Resource
    The cell types in the adenohypophysis of the South-American lungfish, Lepidosiren paradoxa, with special reference to immunocytochemical identification of the corticotropin-containing cells (1980)
    Springer
    Cell & tissue research 209 (1980), S. 147-160 
    Details
    ISSN: 1432-0878
    Keywords: Pituitary ; Immunocytochemistry ; ACTH ; Lepidosiren
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary The histological features and distribution of cell types in the distal lobe of Lepidosiren resemble those of Protopterus. Three “basophilic” cell types are described, whereas the identification of two acidophilic cell types is uncertain. In the intermediate lobe two cell types have been found. Anti-(1–24) ACTH IgG was used in the unlabeled antibody-enzyme method to identify corticotropin-containing cells in the adenohypophysis of Lepidosiren with light and electron microscopy. Corticotropin was demonstrated in cells of the distal lobe and the intermediate lobe. The staining reaction in the distal lobe is localized in the rostrally distributed lead-hematoxylin positive cells. At the ultrastructural level the immunoreaction in these distal lobe cells is localized on polymorphic granules ranging from 130 to 210 nm. Absorption experiments show that the immunoreactive cells in the distal lobe contain at least residues 1–3 and 14–17 of the naturally occurring corticotropin hormone, while the intermediate lobe cells contain α-MSH or at least residues 1–3 of ACTH. The plasma level of corticotropin was determined to be 71 ng/l by means of radioimmunoassay (RIA).
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00219931
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