Library

feed icon rss

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Cellular and molecular life sciences 26 (1970), S. 184-186 
    ISSN: 1420-9071
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary Lymphocyte stimulation in vitro could be obtained with allogeneic but not autochthonous or isogeneic granulocytes. Blastoid transformation, mitosis and activated DNA synthesis measured by H3-thymidine incorporation occurred simultaneously. The cytoimmunological relevance and further applications of the findings are discussed.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Journal of molecular medicine 62 (1984), S. 145-148 
    ISSN: 1432-1440
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 3
    Electronic Resource
    Electronic Resource
    Springer
    Journal of molecular medicine 64 (1986), S. 701-707 
    ISSN: 1432-1440
    Keywords: Carcinoembryonic antigen ; CEA ; Breast cancer
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary The diagnostic validity of serial CEA determinations in metastatic breast cancer was investigated. First, the CEA values within 8 weeks after start of therapy were correlated with the response to therapy. Second, the CEA levels were used to predict progression after remission or stable disease. These investigations were performed in 150 patients with advanced breast cancer who had clinical follow-ups and serial CEA determinations every one to three months. CEA was not useful for monitoring response to therapy (sensitivity 63%, specifity 58%) or prediction of relapse (sensitivity 61%, specifity 82%) if CEA levels were correlated with clinical course in all patients. However, diagnostic validity of CEA was achieved if the patients were selected and appropriate definitions of significant changes in CEA used. Thus, 83% of the responders (sensitivity) could be identified by a significant decrease of CEA titers in patients with CEA levels of ≧10 ng/ml. A decrease of more than 10% of pretreatment levels during the first 4–8 weeks after start of therapy proved to be the appropriate definition of a significant decrease of CEA titers. However, 32% of the non-responders were misclassified as responders (unspecifity) using these criteria. The positive predictive value of a significant decrease of CEA for response to therapy was 72% (prevalence 45%), the negative predictive value 82% (prevalence 55%). Rising CEA titers specifically predicted progression of disease in patients with remission or stable disease. However, an appropriate sensitivity (86%) was achieved only in patients with baseline CEA levels of ≧5 ng/ml. The selection criteria described applied to one-third of the patients in the present study. Prospective studies based on these results have to show whether the definitions used can be generalized and are to be recommended for clinical practice.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 4
    ISSN: 1432-1440
    Keywords: Megestrol acetate ; Medroxyprogesterone acetate ; Cortisol ; Prolactin ; Breast cancer
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Both medroxyprogesterone acetate (MPA) and megestrol acetate (MA) are effective in the treatment of metastatic breast cancer. Although the dose-dependent mode of actions of MPA have been extensively clarified, there is still some uncertainty regarding the mode of actions and dosage of MA. Thirty-three patients with metastatic breast cancer were treated with various dosages of MA under a phase-II study. Eight patients were given 200 mg, 9×400 mg, 10×600 mg and 6×800 mg MA daily per os. The LH, FSH, TBI, T3, T4, TSH, ACTH, aldosterone, testosterone, prolactin and cortisol levels were determined regularly during treatment to enable the investigation of the pharmacodynamics of MA. A complete remission was achieved in two patients, a partial remission in seven patients and there was no change in eight patients (total responder rate 51.5%). The clinical and endocrine changes therefore suggest that the dose-dependent mode of actions of MPA and MA are identical. Equivalent dosages of MPA are 1000–1500 mg per os and of MA 160–200 mg. Furthermore, similar relationships between the endocrine changes and remission behaviour of MA and MPA have been observed. Persisting tumour remissions are inevitable under cortisol suppression and normal prolactin, aldosterone and ACTH levels.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 5
    ISSN: 1432-1440
    Keywords: Breast cancer ; Medroxyprogesteroneacetate ; Prolactin ; Cortisol ; Chemotherapy resistance
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Based upon preliminary observations that tumor response to MPA was correlated to cortisol suppression 42 patients were treated with MPA at different dose levels. 1 500 mg MPA p.o. almost completely suppressed endogenous cortisol production in 23 out of 23 patients. Consequently, 51 patients with advanced stage metastatic breast cancer were treated with Medroxyprogesteroneacetate (HD-MAP) at a dosage of 1 500 mg p.o. daily or 500 mg i.m. on 5 days per week. There were 5 complete and 7 partical remissions, 23 patients with no change and 10 with progressive disease. 7 patients were not evaluable. Clinical results correlated to plasma cortisol and prolactin blood levels bot not to LH, FSH, TSH, TBI, T3, T4, ACTH and aldosterone measurements. There was no patient with relapse and suppressed cortisol or normal prolactin measurements. The development of pituituary resistance to MPA is suggested. HD-MPA was equally effective in estrogen and/or progesterone receptor positive as in receptor negative patients. It is proposed that cortisol and prolactin determinations are useful to monitor for effective MPA treatment and the early detection of MPA resistance.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 6
    ISSN: 1432-1440
    Keywords: Breast cancer ; Immune complexes
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary In 68 patients with metastatic breast cancer a follow-up study was performed to correlate circulating immune complexes (CIC) as detected by the C1q binding assay and the Raji cell radio immunoassay with the state of disease. Clinical examinations and determinations of CIC were carried out all four to eight weeks over at least six months. 19 patients were positive for CIC in the C1q binding assay and 12 in the Raji cell radio-immunoassay. There was no correlation between the results of both tests. In comparison 26 patients out of 68 with rheumatoid arthritis were positive in the C1q binding assay and 32 in the Raji cell assay. In these patients the results of both tests correlated significantly. There was only in a few cases of metastatic breast cancer a positive correlation between levels of CIC and changes of tumor burden. Furthermore, CIC did not prove to be of prognostic value.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 7
    Electronic Resource
    Electronic Resource
    Springer
    Journal of molecular medicine 63 (1985), S. 565-571 
    ISSN: 1432-1440
    Keywords: Blood-brain barrier ; Drug transfer ; Alkylglycerols
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary The penetration of 12 commonly used anticancer agents through the blood-brain barrier (BBB) was measured in a rat model using a single-injection tissue-sampling technique. Two of the tested drugs penetrated the barrier, but only to a limited extent. Entry of the drugs into the brain tissue critically depends on molecular weight and lipophilia of the respective test compound. For drugs with a molecular weight of less than 500, BBB simply behaves like an oil/water interphase, whereas drugs with a molecular weight greater than 500 are practically excluded from transport through the BBB even if they show a favourable oil/water partition coefficient. However, permeability of cytostatics was strongly increased if short chain alkylglycerols, up to final concentrations of about 0.3 mol/l were added to the injected solution. Under these conditions the Brain-Uptake-Index (BUI) reached values up to about 50% (cyclophosphamide), depending on lipid solubility and molecular dimension of the respective test compound and the alkyl chain length of the glycerol derivative.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 8
    ISSN: 1432-1440
    Keywords: Pharmacokinetic ; cis-Dichlorodiamine-Platin (II) ; Pharmakokinetik ; cis-Dichlorodiamino-Platin (II)
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung In Abhängigkeit von 1-, 8- und 24stündiger Infusionsdauer mit cis-DDP 3 mg/kg wurden mit der Methode der Atom-Absorptions-Spektroskopie Platin im Plasma und Urin bis zum 28. Tag nach cis-DDP-Applikation bestimmt. Die höchsten Plasmakonzentrationen wurden jeweils am Ende der cis-DDP-Zufuhr gemessen. Der Minimalwert betrug 1,9 µg/ml, der Maximalwert 5,8 µg/ml. Bis zum 21. und 28. Tag nach Infusion konnten im Plasma Platinkonzentrationen zwischen 0,01 und 0,9 µg/ml nachgewiesen werden. Die Applikationsdauer war bei erheblicher individueller Schwankung ohne Einfluß auf die durchschnittliche Menge des ausgeschiedenen Platins. Nach 24 Stunden wurden zwischen 24 und 25%, nach weiteren 24 Stunden zwischen 4,8 und 7%, zwischen dem 3. und 21. Tag zwischen 1 und 2% und nach dem 21. Tag weniger als 1% der zugeführten Menge an Platin ausgeschieden. Ein Unterschied in der Toxizität konnte nicht eindeutig festgestellt werden.
    Notes: Summary Concentrations of platin were determined with the method of atomic absorption spectroscopy in plasma and urine from the 1st until 28th day after cis-DDP (3 mg/kg) infusion for 1, 8, and 24 h. Maximum of plasmaconcentration was measured always at the end of the application time. Minimal concentration was 1.9 µg/ml, maximal concentration 5.8 µg/ml. Platin could be detected until the 21st respectively 28th day between 0.01 and 0.9 µg/ml. The duration of cis-DDP infusions was without influence on the mean excretion of platin. Between 24 and 25% of the infused platin was excreted after 24 h, between 4.8 and 7% after further 24 h, between 1 and 2% between the 3rd and 21st day, and less than 1% thereafter. Difference in pattern of toxicity could not be clearly detected.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 9
    Electronic Resource
    Electronic Resource
    Springer
    Journal of molecular medicine 65 (1987), S. 317-323 
    ISSN: 1432-1440
    Keywords: Breast cancer ; Complete remission ; Remission maintenance ; Intensive short-term chemotherapy ; Medroxyprogesterone acetate
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Aiming at a high complete remission rate with an intensive induction regimen, 27 patients with advanced breast cancer were given three cycles of VAC chemotherapy consisting of vinde-sine 3 mg/m2 i.v. on days 1 and 12, adriamycin 40 mg/m2 i.v. on days 1 and 12, and cyclophosphamide 200 mg/m2 p.o. on days 3–6 and 14–17 together with medroxyprogesterone acetate (MPA) 1,500 mg p.o. daily during the induction phase and 1,000 mg p.o. thereafter until relapse. These VAC double cycles were repeated twice with 3-weekly intervals for a total induction period of 15 weeks. In responders, including no change, the chemotherapy was discontinued thereafter, and the patients were observed until relapse with a maintenance therapy of MPA 1,000 mg p.o. daily. A complete remission (CR) was achieved in 8 (29.6%) and a partial remission (PR) in 13 (48.2%) of the 27 patients (CR + PR 77.8%). A no change (NC) status was found in 6 patients (22.2%). There were no nonresponders. The median duration of the CR was 20 (5–42) months with two patients still in CR at 33 and 36 months, of the PR 8.3 (4–13.5) months, and of the NC 6.7 (2–13) months. The treatment was tolerated without life-threatening toxicity or interval prolongation by all patients. No dose-limiting cardiac toxicity was observed in these patients regularly controlled by left ventricular ejection fraction (LVEF). The high response rate of this intensive induction regimen warrants further investigation. Complete remission was achieved only in patients without previous chemotherapy, with marked tumor regression after the first chemotherapy cycle and when there was no extensive bone involvement.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 10
    ISSN: 1432-1440
    Keywords: Immunoadsorption ; Protein A ; Immunosuppressive serum factors ; Colorectal cancer ; Mixed lymphocyte culture ; Lymphocyte proliferation
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Serum factors may be responsible for reduced host-anti-tumor defence. Although there is still confusion about their origin, attempts have been made to immobilize serum components by Protein A columns as a therapeutic modality. In our study the in vitro adsorption of 90% of the IgG from cancer sera on “immobilized protein A” did not influence the inhibitory serum activity as measured in a mixed lymphocyte culture. Therefore, IgG or immune complexes do not seem to be the suppressive serum factor in patients with advanced colorectal carcinoma. There is evidence for leakage of small amounts of protein A from the columns which have immunostimulatory activity. Perhaps this may explain necrosis after a therapeutic immunoadsorption.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...