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  • Articles: DFG German National Licenses  (3)
  • Built-in current sensor  (1)
  • Carboplatin  (1)
  • Caucasian  (1)
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  • Articles: DFG German National Licenses  (3)
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Years
  • 1
    ISSN: 1432-0843
    Keywords: Key words Small-cell lung cancer ; Chemotherapy ; Cisplatin ; Carboplatin ; etoposide
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Purpose: A phase II trial combining cisplatin, carboplatin and etoposide was conducted in previously untreated patients with stage IIIB and IV small-cell lung cancer, in an attempt to increase response rates and prolong survival. Methods: Previously untreated patients with small-cell lung cancer, with measurable disease, aged ≤ 72 years, performance status ≤ 2, and adequate hematologic, hepatic and renal function were enrolled in the study. They were treated with 80 mg/m2 cisplatin on day 1, 100 mg/m2 carboplatin on days 2, 3 and 8, and 50 mg/m2 etoposide on days 1, 2, 3 and 8. Results: A total of 46 patients (20 with stage IIIB and 26 with stage IV disease) were enrolled in the study. A total of 186 courses of chemotherapy were given, and the dose was reduced in 27 courses (15%). The chemotherapy was repeated for four or more courses in 30 patients. There were 10 complete responses and 32 partial responses, for a total response rate of 91% (95% confidence interval, 79% to 98%). The median survival time and 2-year survival rates were 18 months and 22% for stage IIIB disease, and 14 months and 15% for stage IV disease. Major side effects were hematologic: leukopenia, anemia, and thrombocytopenia of grade 3 or more occurred in 48%, 46%, and 43% of patients, respectively. Conclusions: The three-drug regimen of cisplatin, carboplatin and etoposide is feasible and active against small-cell lung cancer.
    Type of Medium: Electronic Resource
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  • 2
    ISSN: 1432-0738
    Keywords: Key wordsCYP2A6 polymorphism ; Coumarin ; Nicotine ; Japanese ; Caucasian
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Genotypes of CYP2A6, namely CYP2A6 * 1 (wild-type), CYP2A6 * 2, and CYP2A6 * 3, were examined in liver DNA of 39 Japanese and 43 Caucasians using two-step polymerase chain reaction (PCR) methods. We first amplified a DNA fragment (1725 bp) located between near middle of exon 1 and end of exon 4 of the CYP2A6 gene and further amplified using a forward primer 't' or 'mut' (middle of exon 3) and a reverse primer 'E3R' (middle of intron 3) for the detection of CYP2A6 * 2-genetic polymorphism. The 1725 bp fragment was also used for the amplification between exon 3 and near middle of intron 3 of the CYP2A6 gene and the fragment thus obtained digested with XcmI or DdeI to detect and confirm the CYP2A6 * 2- and CYP2A6 * 3-types, respectively. Only one DNA sample from a Japanese origin (J18) was not amplified by CYP2A6-specific primers; liver microsomes from this individual had very low activity of coumarin 7-hydroxylation and were devoid of protein(s) immunoreactive to anti-CYP2A6 antibody. Thus, this individual was suggested to be due to the gene deletion in CYP2A6. By analyzing the remaining 38 Japanese and 43 Caucasians, we found that there were no cases of CYP2A6 * 3-type polymorphism in the samples examined in this study, and no cases of CYP2A6 * 2-type polymorphism in the Japanese samples. Of Caucasians studied two individuals were classified into heterozygous CYP2A6 * 1/ * 2-type. Liver microsomal coumarin 7-hydroxylation activities in these two Caucasians were found to be lower than those of the other 41 Caucasians. Kinetic analysis showed that two CYP2A6 * 1/ * 2 individuals had a very low ratio of V max to K m for nicotine C-oxidation as well as coumarin 7-hydroxylation in liver microsomes, compared with those of homozygous CYP2A6 * 1-type. These results suggest that among 39 Japanese and 43 Caucasians examined one Japanese is classified to be CYP2A6 gene deletion and two Caucasians are heterozygous CYP2A6 * 1/ * 2-genotype. Thus the race-related differences in the occurrence of CYP2A6 genetic polymorphisms were supported.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Springer
    Journal of electronic testing 14 (1999), S. 39-48 
    ISSN: 1573-0727
    Keywords: Built-in current sensor ; IDDQ testing ; low-voltage LSIs ; multiple power supplies
    Source: Springer Online Journal Archives 1860-2000
    Topics: Electrical Engineering, Measurement and Control Technology
    Notes: Abstract This paper presents a novel built-in current sensor that uses two additional power supply voltages besides the system power supply voltage, and that is constructed by using a current mirror circuit to pick up an abnormal IDDQ. It is activated only by an abnormal quiescent power supply current and minimizes the voltage drop at the terminal of the circuit under test. Simulation results showed that it could detect 16-μA IDDQ against 0.03-V voltage drop at 3.3-V VDD and that it reduced performance degradation in the circuit under test. It is therefore suitable for testing low-voltage integrated circuits. Moreover, we verified the behavior of the sensor circuit implemented on the board by using discrete devices. Experimental results showed that the real circuit of the sensor functioned properly.
    Type of Medium: Electronic Resource
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