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  • 2000-2004  (3)
  • Dihydroartemisinin  (1)
  • Immunocytochemistry  (1)
  • MHC  (1)
  • 1
    Electronic Resource
    Electronic Resource
    Pharmacokinetics and bioequivalence evaluation of three commercial tablet formulations of mefloquine when given in combination with dihydroartemisinin in patients with acute uncomplicated falciparum malaria (2000)
    Springer
    European journal of clinical pharmacology 55 (2000), S. 743-748 
    Details
    ISSN: 1432-1041
    Keywords: Key words Pharmacokinetics ; Bioequivalence ; Mefloquine ; Uncomplicated falciparum malaria ; Dihydroartemisinin
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Medicine
    Notes: Abstract Objective: To assess the pharmacokinetics and relative bioavailability/bioequivalence of three commercial tablet formulations of mefloquine, i.e. Lariam (reference formulation), Mephaquin 100 Lactab and Eloquin-250, when given sequentially after dihydroartemisinin in Thai patients with acute uncomplicated falciparum malaria. Methods: Twenty-nine Thai patients with acute uncomplicated falciparum malaria were randomised to receive an initial dose of 300 mg dihydroartemisinin, followed by 1250 mg mefloquine (at 24 h and 30 h after dihydroartemisinin) given as either Lariam (n=10 cases), Mephaquin (n=9 cases) or Eloquin-250 (n=10 cases). Serial blood samples were obtained up to day 42 after treatment with mefloquine. Mefloquine concentrations were determined in whole blood by means of ultraviolet high-performance liquid chromatography. The pharmacokinetic parameters of mefloquine were estimated using non-compartmental and compartmental analysis. Results: The three combination regimens were well tolerated. Patients in all treatment groups had a rapid initial response. However, nine patients (four and five cases in regimen containing Mephaquin 100 Lactab and Eloquin-250, respectively) had reappearance of parasitaemia during the follow-up period. Mefloquine from the three formulations showed significantly different pharmacokinetic and bioavailability metrics. Significantly lower peak plasma concentrations (Cmax) and areas under the plasma concentration–time curve (AUC; AUC0–48h, AUC0–7days, and total AUC) were observed with Mephaquin 100 Lactab than with the other two formulations. Mean values for relative bioavailability of the test to standard products were 49.1% (Mephaquin 100 Lactab) and 72.4% (Eloquine-250). Based on the criteria set, the bioavailability of the two test products (Mephaquin 100 Lactab and Eloquine-250) was considered non-equivalent to the reference product with respect to the rate (tmax, Cmax) and extent (AUC0–48h, AUC0–7days, total AUC) of mefloquine absorption.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s002280050008
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    The [HLA-B18, F1C30, DR3] Conserved Extended Haplotype Carries a Susceptibility Gene for IgD Deficiency (2000)
    Springer
    Journal of clinical immunology 20 (2000), S. 216-220 
    Details
    ISSN: 1573-2592
    Keywords: IgD deficiency ; MHC ; extended haplotype ; Basques
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract We showed previously that the conserved extended MHC haplotype [HLA-B8, SC01, DR3] carries recessive susceptibility genes for IgA and IgG4 deficiency and dominant genes for IgD and IgG3 deficiency. [HLA-B18, F1C30, DR3] has similar class II and III regions to [HLA-B8, SC01, DR3] and is common in the Basques. We therefore studied serum immunoglobulin concentrations in Basque homozygotes, heterozygotes, and noncarriers of (F1C30, DRB1*0301, DRB3*02, DQA1*0501, DQB1*0201) (F1C30, DR3). As shown by others, no subjects were deficient in IgA, IgM, or IgG subclasses. In contrast, 29% of homozygotes and three of seven double heterozygotes with (SC01, DRB1*0301, DRB3*0101, DQA1*0501, DQB1*0201) (presumed homozygotes for IgD deficiency susceptibility genes) were IgD deficient. Thus, 32% of presumed homozygotes were IgD deficient compared with 1.6% of noncarriers. Of haplotype heterozygotes, 25% were IgD deficient. The high frequency of IgD deficiency in both homozygotes and heterozygotes for (F1C30, DR3) suggests a partially penetrant dominant susceptibility gene for IgD deficiency on [HLA-B18, F1C30, DR3].
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1006693614974
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Calcium-binding Proteins Calbindin D28K, Calretinin, and Parvalbumin Immunoreactivity in the Rabbit Visual Cortex (2000)
    Springer
    Molecules and cells 10 (2000), S. 206-212 
    Details
    ISSN: 0219-1032
    Keywords: Calcium-binding Protein ; Immunocytochemistry ; Localization ; Visual Cortex
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract The distribution and morphology of neurons containing three calcium-binding proteins, calbindin D28K, calretinin, and parvalbumin in the adult rabbit visual cortex were studied. The calcium-binding proteins were identified using antibody immunocytochemistry. Calbindin D28K-immunoreactive (IR) neurons were located throughout the cortical layers with the highest density in layer V. However, calbindin D28K-IR neurons were rarely encountered in layer I. Calretinin-IR neurons were mainly located in layers II and III. Considerably lower densities of calretinin-IR neurons were observed in the other layers. Parvalbumin-IR neurons were predominantly located in layers III, IV, V, and VI. In layers I and II, parvalbumin-IR neurons were only rarely seen. The majority of the calbindin D28K-IR neurons were stellate, round or oval cells with multipolar dendrites. The majority of calretinin-IR neurons were vertical fusiform cells with long processes traveling perpendicularly to the pial surface. The morphology of the majority of parvalbumin-IR neurons was similar to that of calbindin D28K: stellate, round or oval with multipolar dendrites. These results indicate that these three different calcium-binding proteins are contained in specific layers and cells in the rabbit visual cortex.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s10059-000-0206-2
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    Paper (German National Licenses)
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