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  • 1
    Electronic Resource
    Electronic Resource
    New strategies in marrow purging for breast cancer patients receiving high-dose chemotherapy with autologous bone marrow transplantation (1993)
    Springer
    Breast cancer research and treatment 26 (1993), S. S19 
    Details
    ISSN: 1573-7217
    Keywords: amifostine ; autologous bone marrow transplantation (ABMT) ; breast cancer ; 4-hydroperoxycyclophoshamide (4-HC) ; marrow purging
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary High-dose chemotherapy and autologous bone marrow transplantation (ABMT) are commonly used to treat selected patients with high-risk breast cancer. A limitation of ABMT is that clonogenic cancer cells could be collected with the bone marrow and produce a relapse of disease when reinfused into patients. Purging the marrowex vivo may eliminate the tumor cells, but it can also delay engraftment. We employed two different purging methods whereby breast cancer cells were depleted without delaying engraftment. The addition of WR-2721 (amifostine) to 4-hydroperoxycyclophosphamide (4-HC) reduced the time to engraftment by 10 days compared with marrow purged with 4-HC alone (26 versus 37 days, respectively). The positive selection of CD34+ hematopoietic progenitors produced engraftment within 21 days. The use of granulocyte colony-stimulating factor (G-CSF) accelerated the engraftment time of CD34+ hematopoietic progenitors to 11 days.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00668356
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Pharmacokinetic/pharmacodynamic interactions of intensive cyclophosphamide, cisplatin, and BCNU in patients with breast cancer (1993)
    Springer
    Breast cancer research and treatment 26 (1993), S. S11 
    Details
    ISSN: 1573-7217
    Keywords: autologous hematopoietic cell support ; BCNU ; breast cancer ; carboplatin ; cisplatin ; cyclophosphamide
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Combinations of alkylating agents in intensive doses with autologous hematopoietic cell support (AHCS) are commonly used to treat advanced, solid tumors. Relatively little is known about the pharmacokinetic or pharmacodynamic aspects of their use. The cyclophosphamide, cisplatin, and BCNU (CPA/cDDP/BCNU) regimen is often used in patients with breast cancer. In these individuals, the blood levels of BCNU vary by more than tenfold. In rats given BCNU, the blood level variability is associated with cisplatin pretreatment, and mean levels are much higher than those that occur when cisplatin pretreatment is omitted. These observations suggest that a major elimination pathway for BCNU is metabolic and is subject to cisplatin disruption. Between 30–50% of patients receiving the CPA/cDDP/BCNU regimen experience a steroid-responsive pulmonary injury that can be fatal if untreated. Blood levels of BCNU are positively correlated with the risk of pulmonary injury in these patients. Others have demonstrated that blood levels of CPA can be inversely correlated with the likelihood of cardiac toxicity and 2-year, relapse-free survival in patients with breast cancer. Emerging data suggest that circulating drug levels, rather than the calculated dose, best explain the variability of outcome in patients treated with combination alkylating agents and AHCS.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00668355
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
  • 3
    Electronic Resource
    Electronic Resource
    Complexation of alkali metal cations by calix[4]Arene-bis-crown-6 in methanol, acetonitrile and propylene carbonate (1996)
    Springer
    Journal of solution chemistry 25 (1996), S. 955-970 
    Details
    ISSN: 1572-8927
    Keywords: Electrolytic conductance ; molar conductance ; ion pair formation ; complex formation ; 18-crown-6 ; calix[4]arene-bis-crown-6 ; lithium perchlorate ; sodium perchlorate ; potassium perchlorate ; rubidium perchlorate ; cesium perchlorate ; acetonitrile ; methanol ; propylene carbonate
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Résumé The interactions of Li+, Na+, K+, Rb+, and Cs+ with the “double-crown calix,” calix[4]arene-bis-crown-6, have been studied in methanol, acetonitrile, and propylene carbonate at 25°C using precise conductivity measurements. For Li+ and Na+ in solutions containing this calix[4]arene, only 1:1 cation:ligand complexes are formed which permit the determination of the thermodynamic complexation formation constants,K f. The conductivity data strongly suggest that 2:1 cationcalixarene complexes form with K+, Rb+, and Cs+. The existence of 2:1 complexes was experimentally confirmed for the potassium systems by a mass spectroscopic method.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00972592
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    Paper (German National Licenses)
    Fulltext
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