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  • Articles  (4)
  • Glare  (2)
  • Immunohistochemistry  (2)
  • 1990-1994  (4)
  • 1
    ISSN: 1573-2622
    Keywords: Corneal dystrophy ; Glare ; Straylight
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract The direct compensation method allows for an accurate determination of intraocular light scattering between 3.5 and 25 degrees of scattering angle and is suitable for untrained subjects. The method was used to study light scattering in four forms of hereditary corneal dystrophies. Light scattering is the basis of glare complaints and was compared with visual acuity loss. The findings corresponded to the complaint patterns: in central crystalline dystrophy light scattering can be much increased with relatively well preserved visual acuity. In posterior polymorphous dystrophy the reverse is true. In macular dystrophy (Groenouw II) and lattice dystrophy the situation is more or less intermediate between these two extremes.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Documenta ophthalmologica 78 (1991), S. 177-181 
    ISSN: 1573-2622
    Keywords: Glare ; straylight ; contrast sensitivity ; light scatter ; disability glare ; discomfort glare
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract An overview is given of the basic phenomena that may lead to glare complaints in patients. Prominent among them is increased intraocular straylight; this can be measured. Other causes may include: increased sensitivity to normal straylight, the length of (increased) light and dark adaptation times, (small angle) neuronal lateral interaction. Distinction must be made between disability glare and discomfort glare. Tests have been proposed to determine glare-induced loss of various visual functions. Often the test results are thought to be directly related to straylight but this may be untrue.
    Type of Medium: Electronic Resource
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  • 3
    ISSN: 1432-0878
    Keywords: Placenta ; Macrophages ; Reticulum cells ; Immunohistochemistry ; Rat (Wistar)
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary The placenta is a unique mixture of histoincompatible cells derived from mother and fetus. The aim of the present study was to obtain information on the development of macrophage subpopulations and reticulum cells during pregnancy in the placenta. Placentas of Wistar rats were removed at several stages of gestation, and were studied by immunohistochemical techniques applying monoclonal antibodies against macrophage subpopulations, lymphoid cells and reticulum cells. The expression of MHC class-II antigens was also studied. Throughout gestation macrophages were demonstrable in large numbers in the endometrium, in the myometrium and in the metrial gland, which is a compartment developing in the myometrium of pregnant rodents. In the labyrinth, a placenta compartment consisting of fetal cells, macrophages (probably of fetal origin) were already found on day 15. In the spongiotrophoblast and decidua basalis, which are layers of the placenta containing both maternal and fetal cells, only a few macrophages were recognized throughout gestation. The monoclonal antibody ED11, raised against reticulum cells, recognized fiber-like structures lining the blood sinuses of the spongiotrophoblast, in which only maternal blood is circulating. As the antigen recognized by ED11 is believed to play a role in the trapping of immune complexes, the spongiotrophoblast may play a role in the protection of the fetus from circulating immune complexes.
    Type of Medium: Electronic Resource
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  • 4
    ISSN: 1432-0878
    Keywords: Nasal-associated lymphoid tissue ; Reticulam cells ; Immunohistochemistry ; Rat (Wistar, Brown-Norway)
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Abstract This study concerns the ontogeny of reticulum cells (RC) in the nasal-associated lymphoid tissue (NALT) of Wistar and Brown-Norway rats. A panel of monoclonal antibodies (mAb) directed against RC in peripheral lymphoid organs (antibodies ED10≈ED15) was used, together with a recently developed antibody ED17, which recognizes macrophages and Langerhans cells. Early in embryogenesis, staining with common connective tissue markers, ED14 and ED15, was found. ED17-positive cells were present before cells positive to ED1, a pan-macrophage marker, or Ia glycoproteins were observed. The first differentiation of reticulum was seen at the day of birth, when ED10 recognized a distinct area in the nasal mucosa. The first T-lymphocytes were found at the same time. Two days after birth, B-cells and ED11-positive cells were present in the NALT area. Fourteen days after birth, T- and B-cell compartments were recognizable. ED10 was found predominantly in the T-cell area and ED11 was mainly confined to the B-cell compartment. We conclude that the development of the NALT is closely accompanied by the phenotypic specialization of the reticulum. This suggests that the reticulum plays an important role in the compartmentalization of NALT tissue and in the retention of lymphocyte subsets within these compartments.
    Type of Medium: Electronic Resource
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