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  • 1
    Electronic Resource
    Electronic Resource
    The reversibility of disuse osteoporosis (1977)
    Springer
    Calcified tissue international 23 (1977), S. 179-184 
    Details
    ISSN: 1432-0827
    Keywords: Immobilization ; Osteoporosis ; Reversibility ; Rats ; 3H-Thymidine
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine , Physics
    Notes: Summary One hind leg of 80 adult rats of the Sprague-Dawley strain was made osteoporotic by immobilization for 9 weeks. Osteoporosis was noted in both the femur and the tibia when the hydrated gross bone density and the bone surface areas were measured. No signs of reversibility were observed during 10 weeks after the period of immobilization. Tetracycline and DCAF labelling failed to show significant signs of increased bone formation during the 10 weeks after remobilization. At the moment of remobilization and for some weeks thereafter, there were signs of depressed mitotic activity in the bone cells when expressed as the3H-thymidine/DNA ratio. The conclusion was that neither the cell-proliferation rate nor the cellular activity increases sufficiently for restitution of the disuse osteoporosis.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02012784
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Calcification of intervertebral discs in childhood (1979)
    Springer
    Pediatric radiology 8 (1979), S. 23-26 
    Details
    ISSN: 1432-1998
    Keywords: Calcification of intervertebral discs in children
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Fifteen cases of intervertebral disc calcifications have been diagnosed in Umeå during a period of 14 years. In the literature up to now about 100 cases of intervertebral disc calcification have been reported. Our findings suggest that these calcifications are not as rare as has been stated. There are both symptomatic and silent cases. When present the clinical symptoms comprise local painin the neck, limitation of spinal movements and sometimes fever and the condition may simulate meningitis. The radiological findings are pathognomonic. The disc calcifications are most frequently found in boys especially in the cervical region. The etiology is unknown. The symptoms appear when the calcification, for some unknown reason, resorbs or herniates. Neurological symptoms are rare. The treatment is symptomatic and the clinical course self-limiting with complete recovery within a few weeks.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00973672
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Medically used radionuclides in sewage sludge (1978)
    Springer
    Water, air & soil pollution 9 (1978), S. 199-206 
    Details
    ISSN: 1573-2932
    Source: Springer Online Journal Archives 1860-2000
    Topics: Energy, Environment Protection, Nuclear Power Engineering
    Notes: Abstract The concentration of medically used radionuclides has been studied in sludge from the sewage treatment plant serving the borough of Malmo. In this area all nuclear medicine procedures are carried out in one hospital and almost all patients live in the borough. Therefore, the input of medically used radionuclides into the sewage system can be estimated with good accuracy. Samples of digested sludge have been taken once or twice a week during half a year. Iodine-131 (physical half life (T) = R.05 d) was detected in all samples. The 131I-activity concentration due to medical use varied between (0.03±0.01) and (0.12±0.02) nCi kg−1. The ratio between the total output of 131I via the sludge and an adherent input of the radionuclide into the sewage system was determined to (2.6 ± 0.6) × 10−3, which is equivalent to a ratio of (2 ± 1) × 10−2 for stable I. Occasionally measurable activities of 198Au (T=2.7 d) and 201T1(T=3.l d) have been found. The radioactivity concentration of medically used radionuclides in the sludge is low and constitutes no health problems for the persons involved. The sludge however has proved to be a very sensitive and suitable integrator of radioactive material released from a large urban area.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00280706
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    Paper (German National Licenses)
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