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  • Adolescent  (1)
  • Asymptotic approximations  (1)
  • Bone marrow culture  (1)
Materialart
Erscheinungszeitraum
  • 1
    Digitale Medien
    Digitale Medien
    Springer
    Annals of hematology 48 (1984), S. 153-159 
    ISSN: 1432-0584
    Schlagwort(e): Cyclical neutropenia ; Prednisolone ; Remission ; Bone marrow culture
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Medizin
    Notizen: Summary A 19-year old girl with severe cyclical neutropenia associated with life-threatening infection and who responded dramatically to the administration of oral prednisolone is described. During reduction and eventual cessation of steroid therapy normal or near normal neutrophil counts have been maintained, and there has been parallel improvement in clinical well-being. Prior to therapy and at a time of peak blood neutrophil count low numbers of granulocyte-macrophage progenitor cells (CFU-C) were found in the patient's bone marrow, and her lymphocytes co-cultured with normal marrow failed to show the inhibitory effect normally seen with normal lymphocytes. The findings in this patient are compared with those in the two other cases where cyclical neutropenia has been shown to respond to steroids.
    Materialart: Digitale Medien
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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  • 2
    ISSN: 1432-198X
    Schlagwort(e): Key words Fechtner syndrome ; Alport syndrome ; Thrombocytopenia ; End-stage renal disease ; Adolescent
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Medizin
    Notizen: Abstract  Fechtner syndrome, a disease in the spectrum of the hereditary nephridites, is a macrothrombocytopenia associated with sensorineural hearing loss, cataracts, nephritis, and characteristic leukocyte inclusions. Renal biopsy findings are consistent with those of Alport syndrome, and the associated renal disease is said to be unusual before mid to late adulthood. Here, we review the available literature on this disease and report two African-American pediatric patients with Fechtner syndrome who rapidly progressed to end-stage renal disease during adolescence. We conclude that chronic renal failure can occur at a young age in patients with Fechtner syndrome, with a possible relation to race/ethnicity. Fechtner syndrome, or other variants of Alport syndrome, need to be considered in patients presenting with proteinuria and thrombocytopenia.
    Materialart: Digitale Medien
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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  • 3
    Digitale Medien
    Digitale Medien
    Springer
    Statistics and computing 2 (1992), S. 161-171 
    ISSN: 1573-1375
    Schlagwort(e): Asymptotic approximations ; bootstrap calibration ; coverage accuracy ; resampling ; saddlepoint methods ; tail probability approximations
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Informatik , Mathematik
    Notizen: Abstract Standard algorithms for the construction of iterated bootstrap confidence intervals are computationally very demanding, requiring nested levels of bootstrap resampling. We propose an alternative approach to constructing double bootstrap confidence intervals that involves replacing the inner level of resampling by an analytical approximation. This approximation is based on saddlepoint methods and a tail probability approximation of DiCiccio and Martin (1991). Our technique significantly reduces the computational expense of iterated bootstrap calculations. A formal algorithm for the construction of our approximate iterated bootstrap confidence intervals is presented, and some crucial practical issues arising in its implementation are discussed. Our procedure is illustrated in the case of constructing confidence intervals for ratios of means using both real and simulated data. We repeat an experiment of Schenker (1985) involving the construction of bootstrap confidence intervals for a variance and demonstrate that our technique makes feasible the construction of accurate bootstrap confidence intervals in that context. Finally, we investigate the use of our technique in a more complex setting, that of constructing confidence intervals for a correlation coefficient.
    Materialart: Digitale Medien
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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