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  • Eosinophils  (1)
  • Mouse yolk sac  (1)
  • Thymus  (1)
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Materialart
Erscheinungszeitraum
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  • 1
    Digitale Medien
    Digitale Medien
    A light and electron microscopic study of myelopoietic cells in the perihepatic subcapsular region of the liver in the adult aquatic newt, Notophthalmus viridescens (1975)
    Springer
    Cell & tissue research 159 (1975), S. 63-71 
    Details
    ISSN: 1432-0878
    Schlagwort(e): Urodele liver ; Myelopoiesis ; Neutrophils ; Eosinophils ; Stem cells
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie , Medizin
    Notizen: Summary The liver of the newt, Notophthalmus viridescens, consists of several incompletely separated lobes of parenchymal tissue each of which is covered by a perihepatic subcapsular region (PSR) of myeloid tissue. This tissue contains neutrophils and eosinophils in various stages of differentiation. As neutrophils develop from myeloblasts to late neutrophilic myelocytes, two types of granules appear. The primary granules (type of granules formed first) are more electron dense and smaller than the secondary granules (type of granules formed later). The primary granules first appear at the stage designated early neutrophilic myelocyte, and the secondary granules appear at the stage of the maturing neutrophilic myelocyte. The eosinophils present are characterized by much larger granules than those observed in neutrophils. Cells in the PSR which superficially resemble small lymphocytes are primitive stem cells that give rise to neutrophils and eosinophils. The liver PSR is invested by a visceral peritoneum of simple squamous mesothelial cells some of which are ciliated.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00231995
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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  • 2
    Digitale Medien
    Digitale Medien
    Separation of non-proliferating from proliferating thymic lymphocytes based on light scatter analysis (1979)
    Springer
    Cell & tissue research 200 (1979), S. 443-451 
    Details
    ISSN: 1432-0878
    Schlagwort(e): Light scatter sorting ; Thymus ; Cell cycle ; Morphology
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie , Medizin
    Notizen: Summary Two populations of thymic lymphocytes from eight-week-old mice were separated based on the light scatter intensity they generated while passing through a flow cell analyser. The two populations were subsequently studied morphologically and analysed for the relative amount of DNA present in each cell. Cells having a low light scatter intensity had a high nuclear: cytoplasmic ratio, a heterochromatic nucleus, and a proliferative index (S + G2 + M) of only 23%. Cells with a high light scatter intensity had a low nuclear: cytoplasmic ratio, dispersed chromatin, frequently a uropod with budding microvilli and a proliferative index of 71%. The low light scatter cells resemble small cortical thymocytes or lymphocytes from the thoracic duct described by others. The highest light scatter cells resemble medium lymphocytes shown by others to be proliferative.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00234855
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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    Artikel (Nationallizenzen)
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  • 3
    Digitale Medien
    Digitale Medien
    An in vitro morphological study of the mouse visceral yolk sac and possible yolk sac immunocyte precursors (1977)
    Springer
    Cell & tissue research 184 (1977), S. 113-119 
    Details
    ISSN: 1432-0878
    Schlagwort(e): Mouse yolk sac ; Immunocyte precursors ; Organ culture
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie , Medizin
    Notizen: Summary Mouse visceral yolk sac has been organ cultured from 9 days of gestation, a time prior to the thymus being lymphoid, until 12 days of gestation, a time after which the thymus is lymphoid. During the culture period the endodermal epithelial cells survived well, erythropoiesis diminished, endothelial-lined cavities formed in the mesodermal mass, and cells developed which have been classified as large, medium and small immunocyte precursors. The cytoplasm of the immunocyte precursors contains polysomes, spherical mitochondria, a few profiles of rough endoplasmic reticulum, occasional granules and a large Golgi complex. This study offers morphological support for the yolk sac origin of immunocyte precursors in the mouse which may seed the thymus and liver.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00220531
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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