Library

feed icon rss

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
  • 1
    ISSN: 1432-0568
    Keywords: Key words Reptiles ; Gastrointestinal tract ; Nitric oxide ; VIP ; Galanin
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract  The distribution of neurons containing the enzymes NADPH-diaphorase (NADPH-d) and nitric oxide synthase (NOS) has been studied in the gastrointestinal tract of lizard (Podarcis s. sicula) and snake (Thamnophis sirtalis). The techniques employed were the NADPH-d/nitroblue tetrazolium histochemical method, and the indirect immunofluorescence applied to cryostat sections and to whole-mount preparations. The colocalization of NADPH-d with NOS, with vasoactive intestinal polypeptide (VIP) and with galanin (Gal) was also studied, and a Western blot analysis using an antibody directed against mammalian Gal was performed on lizard stomach extracts. NADPH-d positive nerve cell bodies and fibres were found in the myenteric and submucous plexuses throughout the gastrointestinal tract of both reptiles. These nerve structures were also present in the other intramural nerve plexuses, although in smaller quantities. Both in lizard and snake, the stomach revealed a positive nerve population that was more dense than elsewhere in the gut. The population of the NADPH-d-positive neurons observed in the lizard was larger than that observed in the snake. The distribution of both populations was similar to those that have been described in the gut of several mammalian and non-mammalian vertebrates. Both in lizard and snake, a one-to-one correspondence was noted between NOS- and NADPH-d-containing nerve cell bodies, and the nitrergic neurons containing Gal appeared to be more numerous than those containing VIP. Western blot analysis recognised a single band with a molecular weight (3.4 kDa) very similar to that of porcine Gal. It is hypothesised that at least some of the nitrergic neurons of the lizard and snake gut are inhibitory motor neurons innervating the circular smooth musculature. In addition, the colocalization of NOS and VIP in neurons enhances their inhibitory action. The role of the neurons containing both NOS and Gal remains unknown.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Journal of molecular medicine 56 (1978), S. 17-30 
    ISSN: 1432-1440
    Keywords: Eine neue Glyko-Lipidose, die meerblaue Hystiocytose ; Genotypische Formen ; Erworbene Zustände ; Klinische Symptomatologie ; Zytologische Forschungen ; Nosographische Bemerkungen ; Identität der meerblauen Histiozytose ; A new glyco-lipidosis: the Sea-Blue Histiocytosis ; Genotypical forms ; Acquired Conditions ; Clinical features ; Cytological studies ; Nosographic discussion ; Identity of S-B Histiocytosis
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Summary The authors examine the main clinical, cytologic and nosographic aspects of conditions and syndromes associated with SBH on the basis of the literature data (about 40 cases) and 23 personal ones. It is necessary to distinguish between three nosological conditions of SBH: hereditary disease, hereditary asymptomatic, acquired per se asymptomatic. From the clinical viewpoint less a half of all SBH cases are hereditary and present a syndrome based on splenomegaly, periodic hemorrhagic diathesis (due to variable thrombocytopenia), not rarely associated with hepatomegaly and lung or nervous system changes (often eyes are involved). There is also a second SBH hereditary form, vary rare and clinically different from the former, determined by deficiency of plasma-lecitin-cholesterol acyltransferase. The peculiar features of SBH are discussed by means of optical, cytochemical, electron microscopical investigations which point out the polymorphous aspect of these “famished” macrophages. The material stored by SBH is heterogeneous and the enzymatic defect of the most frequent form still remains obscure. The presence of SBH in different haemopathies has an analogous significance as Gaucher's cells found outside Gaucher's disease. It is impossible today to deny the existence of two well-identified SBHS.
    Notes: Zusammenfassung An 23 Fällen sowie Daten der Literatur (etwa 40 Fälle) untersuchen die Autoren die hauptsächlichen klinischen, zytologischen und nosographischen Aspekte von Krankheitszuständen und Syndromen, die mit Sea-Blue Histiozytosis (SBH) einhergehen. Es müssen 3 Krankheitsformen von SBH unterschieden werden: hereditäre Erkrankungen; hereditär asymptomatische Form; erworbene und asymptomatische Form. Vom klinischen Standpunkt ist um die Hälfte weniger aller Fälle von SBH als hereditär einzustufen. Sie bieten ein Syndrom, welches auf Splenomegalie und periodischer haemorrhagischer Diathese (infolge wechselnder Thrompozytopenie) basiert und nicht selten mit Hepatomegalie und Veränderungen der Lungen oder des Nervensystems (häufig mit Beteiligung der Augen) einhergeht. Es gibt außerdem eine zweite hereditäre Form von SBH, welche sehr selten ist und sich klinisch von der ersten Form unterscheidet. Sie ist charakterisiert durch einen Mangel von Plasma-Lecithin-Cholesterin-Acetyltransferase. Die speziellen Eigenschaften des SBH-Syndroms werden besprochen aufgrund licht- und elektronenmikroskopischer sowie zytochemischer Untersuchungen, welche das polymorphe Aussehen dieser „verhungerten“ Makrophagen betonen. Das in SBH-Zellen gespeicherte Material ist heterogen, und der enzymatische Defekt der häufigsten Form von SBH ist noch unbekannt. Der Befund von SBH-Zellen bei verschiedenen Bluterkrankungen hat eine analoge Bedeutung wie der Nachweis von Gaucher-Zellen, die außerhalb der Gaucher'schen Krankheit gefunden werden. Die Existenz von 2 definierten Formen von SBH kann heute nicht mehr bestritten werden.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 3
    Electronic Resource
    Electronic Resource
    Amsterdam : Elsevier
    Ultramicroscopy 12 (1983), S. 134 
    ISSN: 0304-3991
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Electrical Engineering, Measurement and Control Technology , Natural Sciences in General , Physics
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 4
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Anatomia, histologia, embryologia 18 (1989), S. 0 
    ISSN: 1439-0264
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Endocrine cells scattered in organic mucosae were defined “Neuroendocrine” (NE) cells because they constitute a section of the Diffuse Neuroendocrine System (DNES). Such cells have never been evidentiated in the normal endometrium. By means of histochemical and immunohistochemical techniques NE celis, some of which contain the hormone somatostatin, are described in the glandular epithelium of the uterine horn in non-pregnant, non-castrated, young and adult sows. As is known, the uterine horn is the organ of pregnancy in the pig. The localization, distribution and morphology of the uterine NE and somatostatin-containing cells are reported and the importance of their function, in the pregnant and non-pregnant porcine uterus, is mooted.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 5
    Electronic Resource
    Electronic Resource
    Berlin, Germany : Blackwell Verlag GmbH
    Anatomia, histologia, embryologia 34 (2005), S. 0 
    ISSN: 1439-0264
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: The endocannabinoid anandamide may regulate intestinal motility through activation of CB1 receptors. Anandamide is then inactivated by fatty acid amide hydrolase (FAAH), a membrane bound enzyme. Under pathological conditions, inactivation of such enzymatic activity may lead to inhibition of the intestinal motility. Here, preliminary reports on the distribution of Fatty Acid Amide Hydrolase (FAAH) immunoreactivity in the mouse gastrointestinal neurons, and the pharmacological effects of N-arachidonoylserotonin (AA-5HT), a selective inhibitor of FAAH, are reported. FAAH was revealed by an indirect immunofluorescence. Laminar preparations containing the myenteric or the submucous plexus adhered, were peeled off after the whole gut wall had been stretched out and fixed in 4% paraformaldehyde. They were subsequently incubated with a polyclonal anti-serum directed against a region near the N-terminus of the human FAAH and revealed by a FITC-conjugated goat anti-rabbit secondary anti-serum. FAAH-immunoreactive neurons were observed within the myenteric ganglia throughout the GIT. The positive nerve cells varied in size and density of immunoreactivity. Stomach and large intestine showed the highest neuronal density. AA-5HT significantly reduced both gastric emptying and gastrointestinal tract transit. Such inhibitory effect was reduced by the C1 receptor antagonist SR141716A. Both morphological and pharmacological results suggest that FAAH may play a critical role in controlling gut anandamide levels.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 6
    ISSN: 1432-1459
    Keywords: Mucopolysaccharidosis ; Mucopolysaccharides ; Lysosomal disease
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary A case of a child with Sanfilippo B syndrome (MPS III B), born of a consanguineous marriage, is reported. Urinary mucopolysaccharide analysis showed an abnormal excretion mainly of heparan sulphate. N-acetyl-a-glucosaminidase activity was absent in the patient but was present in the heterozygous range in parents and siblings. CSF mucopolysaccharides were also abnormally high. In fibrocytes from conjunctival biopsy and CSF cells numerous vacuoles containing storage material were found. The presence of vacuoles in fibrocytes from conjunctival biopsy and/or in CSF cells can be useful in the diagnosis of many suspected lysosomal storage disorders.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 7
    Electronic Resource
    Electronic Resource
    Springer
    Bioscience reports 13 (1993), S. 251-258 
    ISSN: 1573-4935
    Keywords: cholecystokinin ; neuroendocrine cells ; prostatic adenomas
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology
    Notes: Abstract The presence of CCK-containing neuroendocrine cells in human adenomatous prostates, and the colocalization of CCK together with serotonin in the same cell, have been demonstrated by means of an immunohistochemical technique and by a double labeling immunofluorescent staining. CCK-containing neuroendocrine cells had a focal distribution in the prostates and sometimes showed dendrite-like cytoplasmic processes. The major part of CCK (96.55%) colocalized with serotonin. CCK probably stimulates muscle contraction and endocrine/exocrine secretions in the urogenital tract.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 8
    ISSN: 1573-2630
    Keywords: keratitis ; tyrosinemia II ; familial aminoacid disorder ; palmo-plantar hyperkeratosis ; abnormal urinary tyrosine excretion
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Type II tyrosinemia (Richner-Hanhart syndrome) is a familial aminoacid disorder, clinically characterized by ocular changes (keratitis), palmo-plantar hyperkeratosis, no constant mental changes with mental deterioration, abnormal urinary excretion and high serum tyrosine level in consequence of the absence of tyrosine-aminotransferase. Almost 20 families have been described in the literature of which 50% are of Italian origin, suggesting that this disorder is particularly frequent in our country. We report a family with 2 affected members with typical clinical and biochemical findings (keratitis, palmo-plantar hyperkeratosis, abnormal urinary and serum tyrosine concentrations), not suffering from mental retardation. Clinical symptoms completely disappeared after the decrease of urinary and serum tyrosine levels following a tyrosine- and phenylalanine-free diet. These cases are compared with those reported in literature, and the usefulness of diet for the improvement of clinical and metabolic symptoms is discussed.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 9
    Electronic Resource
    Electronic Resource
    Springer
    Cell & tissue research 83 (1967), S. 30-39 
    ISSN: 1432-0878
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary The vegetative, motor, and sensitive innervation of the oesophagus of rabbit was studied by means of several neurohistological techniques. A great deal of vegetative and somatic nervous formations were found and described within the various segments of the organ; namely at level of the cervical, thoracic, prediaphragmatic, and abdominal oesophageal tracts. In particular, isolated and grouped ganglion cells, interstitial and associative neurons, free nervous terminations, and an amyelinated subepithelial network sending delicate fibrils to the basal layers of the impending epithelium were described. The vegetative nervous component is organized into an extramural oesophageal plexus, and into an intramural one. The numerous motor endplates lying on the striated muscle fibres show different forms and several other structural pecularities. The sensitive terminations are represented by simple and non-capsulated Ruffini's corpuscles contained within the submucous connective tissue. The possible functional correlations of these morphological findings are discussed.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...