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  • 4-hydroxypropranolol  (1)
  • CHIP  (1)
  • Dolichols  (1)
  • Environmental regulation  (1)
  • Springer  (4)
  • 2005-2009
  • 1985-1989  (4)
  • 1965-1969
  • 1910-1914
  • 1905-1909
Collection
Keywords
Publisher
  • Springer  (4)
Years
  • 2005-2009
  • 1985-1989  (4)
  • 1965-1969
  • 1910-1914
  • 1905-1909
Year
  • 1
    Electronic Resource
    Electronic Resource
    Biochemical and morphological characterization of primary kidney cell cultures from beige mutant mice (1987)
    Springer
    Cell & tissue research 250 (1987), S. 627-632 
    Details
    ISSN: 1432-0878
    Keywords: Kidney cell cultures ; Glycosphingolipids ; Dolichols ; D-valine medium ; Beige mouse
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary Primary kidney cultures from adult beige-J (bg J/ bg J) mice were selected for epithelial cell growth using D-valine medium. After 2 weeks of attachment and proliferation in vitro, the cells form a confluent or nearly confluent monolayer that retains several phenotypic characteristics of the beige-J mutant. These include large, multilamellar inclusion bodies that are apparently dysmorphic lysosomes, and higher concentrations of neutral glycosphingolipids and dolichols than control cells. β-Glucuronidase activity, used as a lysosomal enzyme marker, is not elevated in beige-J-cultured kidney cells compared with controls, as it is in the intact kidney. The high levels of β-glucuronidase activity in both control and mutant cells may mask expression of this difference in vitro. The action of the beige-J mutation in kidney cells is thought to be due to a block in exocytosis that results in the accumulation of abnormal lysosomes and their components. The maintenance of the beige phenotype in vitro indicates that the mutation is not suppressed in primary kidney cell cultures. The expression of the beige phenotype in vitro should be useful for studies concerning the primary lesion of this mutation.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00218956
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  • 2
    Electronic Resource
    Electronic Resource
    Organization and differential activation of a gene family encoding the plant defense enzyme chalcone synthase in Phaseolus vulgaris (1987)
    Springer
    Molecular genetics and genomics 210 (1987), S. 219-233 
    Details
    ISSN: 1617-4623
    Keywords: Chalcone synthase ; Multigene family ; cDNA sequence ; Environmental regulation ; Phaseolus vulgaris
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary Chalcone synthase (CHS) catalyzes the first and key regulatory step in the branch pathway of phenylpropanoid biosynthesis specific for synthesis of ubiquitous flavonoid pigments and UV protectants. In bean (Phaseolus vulgaris L.) and other members of the Leguminoseae, chalcone synthase is also involved in the synthesis of the isoflavonoid-derived phytoalexin antibiotics characteristic of this family. We have demonstrated that the haploid genome of bean contains a family of about six to eight CHS genes, some of which are tightly clustered. Treatment of bean cells with fungal elicitor activates several of these genes leading to the accumulation of at least five and probably as many as nine distinct CHS transcripts encoding a set of CHS isopolypeptides of Mr 42–43 kDa but with differing pI in the range pH 6–7. In elicited cells specific transcripts and encoded polypeptides are differentially induced with respect to both the extent and kinetics of accumulation. Wounding or infection of hypocotyl tissue also activates several CHS genes with marked differences in the pattern of accumulation of specific transcripts and encoded polypeptides in wounded compared to infected tissue or elicited cells, indicating operation of more than one cue for defense gene activation. Illumination induces accumulation of a different set of CHS transcripts including only one of the set hitherto demonstrated to be induced by biological stress. The organization and differential regulation of the CHS gene family in bean are discussed in relation to the functions of this enzyme in adaptative and protective responses to diverse enviromental stresses.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00325687
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  • 3
    Electronic Resource
    Electronic Resource
    Clinical trial of iproplatin (cis-dichloro-trans-dihydroxy-bis-isopropylamine platinum IV, CHIP) in patients with advanced breast cancer (1988)
    Springer
    Investigational new drugs 6 (1988), S. 87-91 
    Details
    ISSN: 1573-0646
    Keywords: breast cancer ; Iproplatin ; CHIP ; phase II study
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Medicine
    Notes: Summary Twenty-five women with advanced breast cancer were treated in a phase II trial of iproplatin 275 mg/m2 administered intravenously every 4 weeks. All patients had measurable or evaluable indicator lesions, and had undergone treatment with no more than one previous chemotherapy regimen, including adjuvant chemotherapy. Two of the twenty-four evaluable patients (8%) experienced major therapeutic responses. One patient had a complete regression of pulmonary nodules lasting 18 + months; another had a partial regression of metastatic disease in the liver (4 months). The inevaluable patient was ineligible for the study because of previous radiation to the indicator lesions on her chest wall; nonetheless, she experienced a 10 month partial regression of those nodules. Myelosuppression was generally dose limiting; thrombocytopenia was more profound, but leukopenia was more prolonged. Nausea, vomiting, diarrhea, and general malaise were prominent toxicities, and led to discontinuation of therapy in 4 patients. Iproplatin has limited activity in previously treated women with advanced breast cancer.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00195365
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  • 4
    Electronic Resource
    Electronic Resource
    Etintidine-propranolol interaction study in humans (1987)
    Springer
    Journal of pharmacokinetics and pharmacodynamics 15 (1987), S. 557-568 
    Details
    ISSN: 1573-8744
    Keywords: etintidine ; propranolol ; 4-hydroxypropranolol ; interaction ; pharmacokinetics
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Abstract Etintidine HCl is a potent H2 -blocker. The effect of clinical doses of etintidine on the disposition of a single oral dose of propranolol was investigated in 12 normal subjects. This was a double-blind, two-way crossover study. Each subject received etintidine (400 mg) or placebo twice a day with meals for 4 days on two occasions (separated by 4 days). On each occasion, the subjects were fasted overnight on Day 3 and were given an oral dose of Inderal® (40 mg propranolol hydrochloride) 30 min following the administration of the morning dose of etintidine or placebo on Day 4. Blood samples were collected prior to and up to 24 hr following the administration of propranolol. The plasma samples were analyzed for propranolol and 4-hydroxypropranolol by HPLC. Comparison of the pharmacokinetic parameters of propranolol between etintidine and the placebo groups indicates that etintidine significantly increased the AUC0−∞,values (573.5 vs. 146.4 ng·hr/ml, p=0.0001)and prolonged the elimination half-life (4.61 vs. 2.33 hr) of propranolol. Statistical evaluation of the pharmacokinetic parameters of 4-hydroxypropanolol indicates that etintidine also increased the AUC0−24 values (43.8 vs. 16.4 ng·hr/ml, p=0.0028) and prolonged the elimination half-life (4.87 vs. 1.97 hr) of 4-hydroxypropranolol. The data suggest that etintidine, like cimetidine, impaired the elimination of propranolol. Etintidine also protracted the elimination of 4-hydroxypropranolol, an active metabolite of propranolol.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01068412
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