Abstract:
:The ultrastructure of the cuticle, fibrillar glands and stäbchen (see Reichensperger 1908) of the arm spines of the brittle star Amphipholis squamata are described. Stäbchen are shown to be cuticular projections into which pass one or more uniciliate cytoplasmic processes. The proximal tips of the cilia protrude into the external environment to a variable extent. Evidence is presented for considering these ciliated endings to be the terminations of sensory neurites. Stäbchen are, in consequence, presumed to have a receptor function. Groups of stäbchen are spatially associated with fibrillar gland openings on the sides of spines while the bases of fibrillar gland cells are in contact with axons from the spine nerve which are laden with 45-270 nm diameter, electron-dense, membrane-bounded granules. The possible functional significance of these relationships is discussed in the context of a hypothesis in which fibrillar gland secretions are considered to act as food-catching mucus.
journal_name
Cell Tissue Resjournal_title
Cell and tissue researchauthors
Whitfield PJ,Emson RHdoi
10.1007/BF00216433subject
Has Abstractpub_date
1983-01-01 00:00:00pages
609-24issue
3eissn
0302-766Xissn
1432-0878journal_volume
232pub_type
杂志文章abstract::Hepatic peroxisomes in human embryos with a menstrual age of 6 and 7 weeks have been examined via catalase cytochemistry. In the younger sample, the organelles show no catalase activity, their matrix being pale and coarsely reticular. In the 7-week specimen, the peroxisome population consists of catalase-positive and ...
journal_title:Cell and tissue research
pub_type: 杂志文章
doi:10.1007/BF00323574
更新日期:1993-04-01 00:00:00
abstract::Central projections of the nervus terminalis (n.t.) in the goldfish were investigated using cobalt- and horseradish peroxidase-tracing techniques. Single n.t. fibers were identified after unilateral application of cobalt chloride-lysine to the rostral olfactory bulb. The central course and branching patterns of indivi...
journal_title:Cell and tissue research
pub_type: 杂志文章
doi:10.1007/BF00218095
更新日期:1986-01-01 00:00:00
abstract::Corneal fibroblasts, major cellular components of the corneal stroma, are loosely arrayed between collagen lamellae. They play an important role in the metabolic and physiological homeostasis mechanisms by which the cornea is kept transparent. This paper deals with the demonstration of the gap junctions between the co...
journal_title:Cell and tissue research
pub_type: 杂志文章
doi:10.1007/BF00215533
更新日期:1987-08-01 00:00:00
abstract::Denervation of radial and ulnar arteries in the growing and adult domestic fowl was achieved by unilateral sectioning of the brachial plexus. Eight weeks later the denervated arteries and those of the contralateral wing were examined with light- and electron microscopy to determine the effect of denervation on arteria...
journal_title:Cell and tissue research
pub_type: 杂志文章
doi:10.1007/BF00218955
更新日期:1987-12-01 00:00:00
abstract::The globiferous pedicellariae of Psammechinus miliaris are described. Two fixation methods giving minimal distortion and rapid tissue hardening were adapted for soft tissue preparation for scanning electron microscopy. The pedicellarial valves are covered by a microvillous epithelium. The outer valve epithelial microv...
journal_title:Cell and tissue research
pub_type: 杂志文章
doi:10.1007/BF00220184
更新日期:1975-10-13 00:00:00
abstract::Sudden death in athletes occurs because of the existence of hidden cardiovascular disorders which, during effort, may jeopardize the electrical stability of the heart, triggering ventricular tachycardia and/or fibrillation. Apart from rare conditions of ion channel diseases in the setting of a structurally normal hear...
journal_title:Cell and tissue research
pub_type: 杂志文章,评审
doi:10.1007/s00441-012-1398-4
更新日期:2012-05-01 00:00:00
abstract::The origin of cobblestone-like polygonal cells (the most numerous in renal glomerular cell culture) remains controversial; they could be either dedifferentiated podocytes or parietal epithelial cells (PECs) of Bowman's capsule. Poor cellular outgrowth from glomeruli devoid of Bowman's capsule (decapsulated glomeruli) ...
journal_title:Cell and tissue research
pub_type: 杂志文章
doi:10.1007/s004410100380
更新日期:2001-06-01 00:00:00
abstract::The periodontal ligament (PDL) is a highly specialized tissue connecting the cementum with the tooth socket bone and affects the life span of the tooth. However, little is known about the precise characteristics and regenerative mechanism of PDL cells because of the absence of specific markers and cell lines. Therefor...
journal_title:Cell and tissue research
pub_type: 杂志文章
doi:10.1007/s00441-005-0101-4
更新日期:2006-04-01 00:00:00
abstract::Transcription factor p53 regulates the cell cycle and apoptosis and may impair angiogenesis by the deregulation of pro-angiogenic factors and the activation of anti-angiogenic factors. Our aim has been to elucidate further the role of p53 in physiological angiogenesis. By treating hamsters with the wildtype p53 inhibi...
journal_title:Cell and tissue research
pub_type: 杂志文章
doi:10.1007/s00441-005-1078-8
更新日期:2005-06-01 00:00:00
abstract::Affinity of lymphoid cells for the microenvironment of germinal centers (GC), as detectable in transfer experiments by rapid homing in spleen GC from the blood, is a capacity expressed by only a subset of lymphoid cells, in particular by those constituting a GC. However, when introduced into the blood stream, these ce...
journal_title:Cell and tissue research
pub_type: 杂志文章
doi:10.1007/BF00215160
更新日期:1984-01-01 00:00:00
abstract::Osmotic stimulation activates both estivated and inactivated specimens of Helix pomatia and increases their central arousal. High-pressure liquid chromatography has shown that, during activation, the level of both serotonin and dopamine decreases in the central nervous system (CNS) but increases in the foot and heart,...
journal_title:Cell and tissue research
pub_type: 杂志文章
doi:10.1007/s00441-007-0522-3
更新日期:2008-02-01 00:00:00
abstract::Poreless sensilla (np-sensilla) on the antennae of 18 species from 9 insect orders, and on the maxillary palps of Periplaneta americana were investigated using chemo- and cryofixation. The number of np-sensilla is low. Common features of these sensilla are: (a) the presence of a peg, (b) the lack of pores that lead to...
journal_title:Cell and tissue research
pub_type: 杂志文章
doi:10.1007/BF00213769
更新日期:1983-01-01 00:00:00
abstract::An attempt has been made to reveal which of the nine different types of synapses in the fundus striati, discriminated in a previous study, degenerate following experimental lesions in the parafasciculo-center median complex of the cat. Two types of synaptic contacts were found to be degenerated two days after the lesi...
journal_title:Cell and tissue research
pub_type: 杂志文章
doi:10.1007/BF00226045
更新日期:1976-09-06 00:00:00
abstract::The three-dimensional ultrastructure of the pineal body of the rat is described on the basis of freeze-fractured preparations. The pineal capsule consists of irregular cells with very flat and perforated processes. Through these openings, extremely branched canaliculi, extending to almost every pineal cell, communicat...
journal_title:Cell and tissue research
pub_type: 杂志文章
doi:10.1007/BF00238052
更新日期:1979-09-02 00:00:00
abstract::Tactile hairs on the locust thorax can be divided into two classes by their external morphology and their central projection pattern: Short hairs, 10--100 micrometer in length, which are assembled in distinct plates and rows, and long hairs, 100--800 micrometer in length, which are distributed all over the body and ar...
journal_title:Cell and tissue research
pub_type: 杂志文章
doi:10.1007/BF00234546
更新日期:1981-01-01 00:00:00
abstract::Ontogenetic differentiation of the human thymus was investigated in 50 embryos by means of light and electron microscopic methods in an attempt to clarify the morphogenesis of the complicated microecology of thymic tissue. At the 8th gestational week (g.w.), the primordium of the thymus contains almost exclusively und...
journal_title:Cell and tissue research
pub_type: 杂志文章
doi:10.1007/BF00237813
更新日期:1980-01-01 00:00:00
abstract::Comparing the distribution of cytoplasmic particles and organelles between different experimental conditions can be challenging due to the heterogeneous nature of cell morphologies. The border-to-border distribution method was created to enable the quantitative analysis of fluorescently labeled cytoplasmic particles a...
journal_title:Cell and tissue research
pub_type: 杂志文章
doi:10.1007/s00441-015-2265-x
更新日期:2016-02-01 00:00:00
abstract::The pigmentary system of the planaria, Dugesia gonocephala s.l. (Platyhelminthes, Turbellaria, Tricladida), consists of granules contained in chromatophore cells distributed in the parenchyma tissue. The administration of MSH release-inhibiting Factor (M.I.F.) leads to an easily observable general decolouration of the...
journal_title:Cell and tissue research
pub_type: 杂志文章
doi:10.1007/BF00236132
更新日期:1979-06-27 00:00:00
abstract::Histological, histochemical, and electron microscopical investigations of the rat pancreas, one to five hours after pilocarpine injection (4 mg in 1 ml normal saline solution), showed different secretory responses in periinsular and apoinsular acinar cells. The responsiveness to parasympathetic stimulation is markedly...
journal_title:Cell and tissue research
pub_type: 杂志文章
doi:10.1007/BF00222119
更新日期:1975-08-01 00:00:00
abstract::The distribution of MAP2 and actin in dendritic spines of the visual and cerebellar cortices, dentate fascia, and hippocampus was determined by using immunogold electron microscopy. By this approach, we have confirmed the presence of MAP2 in dendritic spines and identified substructures within the spine compartment sh...
journal_title:Cell and tissue research
pub_type: 杂志文章
doi:10.1007/BF00225592
更新日期:1989-06-01 00:00:00
abstract::In humans, pathogenesis in cyclosporine A (CsA)-induced gingival overgrowth (GO) includes the accumulation of extracellular matrix (ECM) constituents, viz., collagen type-1 and type-3 and proteoglycans, in subgingival connective tissue. However, whether this increase is associated with alterations of molecules pivotal...
journal_title:Cell and tissue research
pub_type: 杂志文章
doi:10.1007/s00441-006-0200-x
更新日期:2006-09-01 00:00:00
abstract::The structure of the two integumental layers comprising the carapace of female D. magna was examined at several points through the molt cycle. The epicuticle and procuticle are simple in organisation; pore canalsare absent but intracuticular fibres are present, forming complexes with invaginations of the epidermal pla...
journal_title:Cell and tissue research
pub_type: 杂志文章
doi:10.1007/BF00214213
更新日期:1976-06-14 00:00:00
abstract::We have recently reported that Sox2-expressing pituitary stem/progenitor cells contact each other via a tight-junction protein CAR to form stem/progenitor cell niches in the marginal cell layer facing the lumen and in the clusters scattered in the parenchyma of the anterior lobe. However, the microenvironment of the n...
journal_title:Cell and tissue research
pub_type: 杂志文章
doi:10.1007/s00441-014-2054-y
更新日期:2015-03-01 00:00:00
abstract::An antiserum against the octapeptide Pea-CAH-I, a member of the adipokinetic hormone/red pigment-concentrating hormone family, has been produced for immunocytochemical staining in insects and various other invertebrate species. The anti-Pea-CAH-I serum stains the glandular corpora cardiaca cells of those insect specie...
journal_title:Cell and tissue research
pub_type: 杂志文章
doi:10.1007/s004410050601
更新日期:1996-06-01 00:00:00
abstract::Retinae of Abyssinian cats homozygous for a retinal degeneration gene, and normal controls, have been investigated using antibodies directed against opsin, transducin alpha (TD-alpha), S-antigen (48K protein), interphotoreceptor retinoid-binding protein (IRBP), and cone outer segments. IRBP-immunoreactivity (IR) is mu...
journal_title:Cell and tissue research
pub_type: 杂志文章
doi:10.1007/BF00221474
更新日期:1989-09-01 00:00:00
abstract::Low-temperature-embedded tissue of the subcommissural organ (SCO) of the rabbit was analyzed for the basal route of secretory product by means of indirect immuno-metal cytochemistry (protein A-gold technique) at the electron-microscopic level. By use of (1) an antiserum against bovine Reissner's fibre (see Sterba et a...
journal_title:Cell and tissue research
pub_type: 杂志文章
doi:10.1007/BF00219221
更新日期:1986-01-01 00:00:00
abstract::Colitis is associated with alterations in electrolyte and water transport. These changes give rise to some of the symptoms experienced by patients with colitis. Alterations in fluid flux may also contribute to increased susceptibility to mucosal injury. Recently, endogenous water channel proteins (aquaporins; AQPs), h...
journal_title:Cell and tissue research
pub_type: 杂志文章
doi:10.1007/s00441-004-0932-4
更新日期:2004-11-01 00:00:00
abstract::The retinal projections in adult and juvenile guitar fish (Rhinobatos productus) were determined with the aid of the Nauta-Fink-Heimer techniques. The visual system was found to be more extensive and more differentiated than in any other elasmobranch studied to date. Massive projections exist to the dorsal and ventral...
journal_title:Cell and tissue research
pub_type: 杂志文章
doi:10.1007/BF00232768
更新日期:1980-01-01 00:00:00
abstract::Gravid females of the parasitoid fly species Ormia ochracea (Diptera: Tachinidae) rely on their sense of hearing to detect and localize their hosts, field crickets of the genus Gryllus. As in any hearing insect species, the fly's auditory system consists of a rather complex cascade of mechanical and physiological mech...
journal_title:Cell and tissue research
pub_type: 杂志文章
doi:10.1007/s004410000257
更新日期:2000-09-01 00:00:00
abstract::Enteroendocrine cells containing glucagon-, substance P-, neurotensin- and VIP-like substances have been demonstrated immunocytochemically in the gut of Barbus conchonius. Mainly based on the distribution of the immunoreactive endocrine cells in this and a previous study, at least eight different enteroendocrine cell ...
journal_title:Cell and tissue research
pub_type: 杂志文章
doi:10.1007/BF00229200
更新日期:1984-01-01 00:00:00