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  • 1
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    Book
    A new appendicularian, Oikopleura gorskyi N. SP. (Tunicata), from Norwegian fjords (2000)
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    Type of Medium: Book
    Pages: S. 69 - 78 , Ill., graph. Darst
    Series Statement: Beaufortia 50,2
    Language: English
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  • 2
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    A new appendicularian, Oikopleura gorskyi n. sp. (Tunicata), from norwegian fjords (2000)
    In:  Beaufortia vol. 50 no. 2, pp. 69-77
    Details
    Publication Date: 2024-01-12
    Description: A new appendicularian, Oikopleura gorskyi n. sp., recovered from numerous plankton samples taken at depths between 1200 and 400 m in Sognefjorden, western Norway, as well as in more shallow water in this and other western Norwegian fjords, is described. The species is easily identified by the limited extension of its oikoblastic epithelium, the small size of its right stomach lobe and the disposition of its subchordal cells in two segments of an antero-posterior line with some 13 and 8 plateshaped cells respectively. The unique pattern of its house rudiment inclusion body and the unique cell nuclear pattern in its oikoblastic epithelium are additional, although less easily observable, characters of this species.
    Keywords: Urochordata ; Appendicularia ; Oikopleuridae ; Oikopleura gorskyi
    Repository Name: National Museum of Natural History, Netherlands
    Type: info:eu-repo/semantics/article
    Format: application/pdf
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  • 3
    Electronic Resource
    Electronic Resource
    Mast cells in the tubal wall in women using an intrauterine contraceptive device (1986)
    Oxford, UK : Blackwell Publishing Ltd
    BJOG 93 (1986), S. 0 
    Details
    ISSN: 1471-0528
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Summary. The number of mast cells in the tubal wall of 33 healthy non-pregnant women, 17 of whom had an intrauterine contraceptive device (IUCD), was investigated. Light microscopy showed that both the muscularis externa and the lamina propria of the tubal wall contained more mast cells in the 17 IUCD users than in the 16 non-users (control group). In both patient groups the mast cell concentration was higher in the muscularis externa than in the lamina propria. Most mast cells of the muscularis externa were more closely related to smooth muscle cells than to blood vessels. The increased number of mast cells in IUCD users may be a factor in the pathogenesis of pelvic inflammatory disease and the ectopic pregnancies that occur in IUCD users.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1471-0528.1986.tb07978.x
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  • 4
    Electronic Resource
    Electronic Resource
    Mast cells in the tubal wall in women using an intrauterine contraceptive device (1986)
    Oxford, UK : Blackwell Publishing Ltd
    BJOG 93 (1986), S. 0 
    Details
    ISSN: 1471-0528
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Summary. The number of mast cells in the tubal wall of 33 healthy non-pregnant women, 17 of whom had an intrauterine contraceptive device (IUCD), was investigated. Light microscopy showed that both the muscularis externa and the lamina propria of the tubal wall contained more mast cells in the 17 IUCD users than in the 16 non-users (control group). In both patient groups the mast cell concentration was higher in the muscularis externa than in the lamina propria. Most mast cells of the muscularis externa were more closely related to smooth muscle cells than to blood vessels. The increased number of mast cells in IUCD users may be a factor in the pathogenesis of pelvic inflammatory disease and the ectopic pregnancies that occur in IUCD users.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1471-0528.1986.tb08064.x
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  • 5
    Electronic Resource
    Electronic Resource
    Morphological changes in tubal mucosa associated with the use of intrauterine contraceptive devices (1984)
    Oxford, UK : Blackwell Publishing Ltd
    BJOG 91 (1984), S. 0 
    Details
    ISSN: 1471-0528
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Summary. We examined the endosalpinx of 28 healthy non–pregnant women, 12 of whom had an intrauterine contraceptive device (IUCD) and 16 of whom had neither an IUCD nor used oral contraceptives. Measurements made on light– and scanning electron micrographs showed that the percentage area covered by ciliated cells was approximately 40% in non– IUCD users and only 20% in IUCD users.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1471-0528.1984.tb15088.x
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  • 6
    Electronic Resource
    Electronic Resource
    The Ultrastructural Localization of Antigens for Skeletal Muscle Antibodies in Myasthenia Gravis (1987)
    Oxford, UK : Blackwell Publishing Ltd
    Annals of the New York Academy of Sciences 505 (1987), S. 0 
    Details
    ISSN: 1749-6632
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Natural Sciences in General
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1749-6632.1987.tb51353.x
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  • 7
    Electronic Resource
    Electronic Resource
    Filtration of colloidal melanin from sea water by planktonic tunicates (1992)
    [s.l.] : Nature Publishing Group
    Nature 355 (1992), S. 630-632 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] The food-concentrating filters of oikopleurid houses have pores only 0.2|xm wide8"12. These filters are used as a tangential flow filtration device to aggregate and concentrate particles suspended in sea water up to 1,000 times12, before they are ingested by the animal and removed ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/355630a0
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  • 8
    Electronic Resource
    Electronic Resource
    The distribution of lead in human hemopoietic tissue and spongy bone after lead poisoning and Ca-EDTA chelation therapy (1988)
    Springer
    Archives of toxicology 62 (1988), S. 295-300 
    Details
    ISSN: 1432-0738
    Keywords: Lead ; Ca-EDTA ; Bone ; Atomic absorption spectroscopy ; Laser microbeam mass analysis ; Electron microbeam X-ray analysis
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Two iliac crest needle biopsies were taken from a 43-year-old lead-poisoned woman during and after completion of a Ca-EDTA treatment. By atomic absorption spectroscopy the first and second biopsy were found to contain 56, respectively 41.6 μg lead/g wet tissue. In both biopsies 36% of the lead was extractable in 0.1 N HCl. Electron microbeam X-ray analysis proved to have too low sensitivity for quantitation of the lead in these biopsies. Laser microbeam mass analysis (LAMMA), performed only on the second biopsy, revealed a high and fairly constant residual lead concentration in all bone marrow cell nuclei (approximately 55 μg/g) and a low lead concentration in the cytoplasm of the same cells (4–12 (μg/g). The extracellular bone matrix lead was greatly concentrated in the superficial 3–6 μm osteoid zone of the bony trabeculae and totally absent from deeper parts of the mineralized matrix. The LAMMA results are in good agreement with those of subcellular fractionation experiments and atomic absorption spectroscopy, provided that the relative volume fraction of nucleus and cytoplasm is accounted for. The high residual osteoid lead after completed chelation therapy indicates that lead has a stronger affinity for the organic than the mineral components of bone matrix.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00332490
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  • 9
    Electronic Resource
    Electronic Resource
    Early morphological changes in rat cerebellum caused by a single dose of methylmercury (1981)
    Springer
    Archives of toxicology 47 (1981), S. 101-111 
    Details
    ISSN: 1432-0738
    Keywords: Cerebellar cortex ; Methylmercury ; Toxicity ; Rat ; Morphometry ; Electron microscopy
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract A single dose of 10 mg methylmercury chloride per kg body weight was given to 30 days old rats and to adult rats (180–200 g). This resulted in brain levels of 1.4–2.2 μg Hg/g wet weight. In the young rats electron microscopic morphometry showed swelling of the granule cells. The extent of changes was more pronounced in the cerebellar hemispheres than in the vermais and flocculus. At 7 days after giving the methylmercury the granule cells appeared to have returned to normal. Methylmercury produced both light and electron microscopic changes in cerebellar neurons of adult (180–200 g) rats 3 days after dosing. 2.5–10% of the granule cells appeared dark and condensed in toluidine blue stained semithin sections of perfusion fixed and plastic embedded material. In control animals the comparable percentage never exceeded 1. By electron microscopic morphometry the dark cells proved to be shrunken to 70%, whereas the remaining light granule cells were swollen to 130% of the normal cell volume. The heterochromatin and mitochondrial volumes per cell remained constant in both dark and light cells from methylmercury treated animals. In the Purkinje cells from both young and adult rats, geometrical changes in the cisternae of the granulated endoplasmic reticulum were evident. The swelling and shrinkage of the granule cells is supposed to be due to impaired electrolyte control and the disorganized granulated endoplasmic reticulum of the Purkinje cells may be related to the deleterious effects on protein synthesis.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00332352
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  • 10
    Electronic Resource
    Electronic Resource
    Rod-shaped accumulations in cisternae of the endoplasmic reticulum in root cells of Lepidium sativum seedlings (1969)
    Springer
    Planta 86 (1969), S. 295-298 
    Details
    ISSN: 1432-2048
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary Ultrathin sections through the median plane of norm al, 48-hrs-old seedling roots of cress, showed the presence of accumulations of a finely fibrillar material. These inclusions were confined to the cisternae of the granular endoplasmic reticulum of surface cell layers of the root tip and the root-hair zone. The rod-shaped structure and random orientation of these inclusions were clearly seen in 3-dimensional reconstructions of serial ultrathin sections.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00386462
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