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
    ISSN: 1432-2072
    Keywords: Positron emission tomography ; Pharmacodynamics ; 11C-raclopride ; Dopamine D2 receptors ; CP-88,059-1
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Positron emission tomography (PET) and11C-raclopride were used to measure the occupancy of central dopamine D2 receptors by a new neuroleptic, CP-88,059-1. In a double blind dose escalation study, seven healthy male subjects received a predose of between 2 mg and 60 mg CP-88,059-1, 5 h before PET scanning. One additional subject was assigned to placebo predose. Receptor occupancy was defined as the percentage reduction in binding potential compared with that seen in the subject predosed with placebo and with that seen in seven unmedicated normal volunteers previously studied. Binding of11C-raclopride decreased in a dose dependent manner, and 85% dopamine D2 receptor occupancy was achieved with the highest dose of CP-88,059-1. The findings confirm that brain dopamine D2 receptors are blocked by CP-88,059-1 and suggest that an effective antipsychotic dose will be between 20 mg and 40 mg. The study highlights the potential of positron emission tomography in the preclinical evaluation of new drugs.
    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 thermal analysis and calorimetry 38 (1992), S. 641-648 
    ISSN: 1572-8943
    Keywords: pyrotechnic system ; titanium-sodium nitrate-alloprene ; simultaneous TG-DTA-MS and TG-DSC
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Zusammenfassung Zur Untersuchung der im Bereich um 300°C eintretenden komplexen Reaktion bei Zusatz des chloriertem Kautschuks Alloprene zu pyrotechnischen Gemischen aus Titan und Natriumnitrat wurden simultane TG-DTA-MS und TG-DSC angewendet. Die Ergebnisse wurden mit denen verglichen, die man im System Titan-Strontiumnitrat-Alloprene erhielt.
    Notes: Abstract Simultaneous TG-DTA-MS and TG-DSC have been used to investigate the complex reaction which takes place in the region of 300°C when the chlorinated rubber Alloprene is added to pyrotechnic compositions containing equal parts by weight of titanium and sodium nitrate. The results have been compared with those obtained for the titanium-strontium nitrate-Alloprene system.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 3
    ISSN: 1573-2568
    Keywords: Helicobacter pylori ; nonsteroidal antiinflammatory drugs ; gastroduodenal mucosal injury
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Helicobacter pylori and nonsteroidal antiinflammatory drugs independently cause gastroduodenal mucosal injury but the relationship between them remains unclear. We have performed a double-blind, parallel-group, placebo-controlled prospective study in 77 healthy volunteers aged 19–35 years who were randomly allocated to indomethacin (N=15), one of three oxicams (piroxicam, chlortenoxicam, or CHF 1194;N=36), or placebo (N=26). Esophagogastroduodenoscopy was performed before and after four weeks of treatment and the mucosal appearances graded. Colonization withH. pylori was established at each endoscopy and gastrointestinal symptoms were assessed by daily diary card. Seven subjects (9%) were positive forH. pylori before treatment (one placebo, one indomethacin, and five an oxicam); theirH. pylori status remained unchanged. Two of 70H. pylori-negative subjects becameH. pylori-positive (2.9%), both of whom had received placebo. The endoscopic score deteriorated in 1/6 drug-treatedH. pylori-positive subjects and in 0/1 taking placebo. Of theH. pylori-negative subjects whose endoscopic score deteriorated, three (13%) were taking placebo, four (28.6%) indomethacin, and eight (25.8%) an oxicam. Upper gastrointestinal symptoms were reported in eight (30.8%) of the subjects taking placebo (one subject negative forH. pylori became positive), eight (53.3%) indomethacin (oneH. pylori-positive), and 10 (27.8%) an oxicam (oneH. pylori-positive). There were no statistically significant differences between theH. pylori-negative andH. pylori-positive groups whether on drug or placebo. These findings suggest thatH. pylori infection, at least in the short term, neither influences the propensity of nonsteroidal antiinflammatory drugs to produce macroscopic gastroduodenal mucosal injury nor does it effect the occurrence of upper gastrointestinal symptoms.
    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...