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  • 1
    ISSN: 1749-6632
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Natural Sciences in General
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Annals of the New York Academy of Sciences 805 (1996), S. 0 
    ISSN: 1749-6632
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Natural Sciences in General
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Springer
    Der Ophthalmologe 94 (1997), S. 659-664 
    ISSN: 1433-0423
    Keywords: Schlüsselwörter Primäre Offenwinkelglaukome ; Aderhaut ; Okuläre Pulsamplitude ; Choroidale Perfusion ; Vasospasmus ; Key words Primary open-angle glaucomas ; Choroid ; Ocular pulse amplitude ; Choroidal perfusion ; Topical carbonic anhydrase inhibitor ; Dorzolamide
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Ocular perfusion is increasingly being discussed in the pathogenesis of glaucoma. The present study was designed to investigate ocular pulse amplitude (OPA) in primary open-angle glaucoma (POAG) patients with elevated intraocular pressure (HTG) and nonglaucomatous controls (CTL) following topical application of the carbonic anhydrase inhibitor dorzolamide. Methods: OPA (Ocular Blood Flow System, OBF Labs UK) intraocular pressure (IOP), heart rate (HR), and systolic (BPsyst) and diastolic (BPdiast) bronchial artery pressures were measured before and 2 days after initiating treatment in 33 cataract patients with (n = 14) and without (n = 19) POAG. Results: Following application of dorzolamide, IOP (mmHg) in drug-treated HTG and CTL eyes was highly significantly reduced (p〈0.001) and in vehicle-treated HTG and CTL eyes significantly reduced (p〈0.03) compared to respective baseline measurements. OPA (mmHg) in drug-treated HTG and CTL eyes was significantly increased (p〈0.05) and in vehicle-treated eyes in affected compared to respective baseline measurements. Systemic perfusion parameters were also unchanged. Conclusion: Dorzolamide increased OPA in HTG and CTL eyes. An increase in OPA may improve the prognosis of HTG.
    Notes: Hintergrund: Die Bedeutung der okulären Perfusion in der Pathogenese der Glaukome wird zunehmend diskutiert. Ziel der vorliegenden Studie war es, die okuläre Pulsamplitude (OPA) bei Patienten mit primärem Offenwinkelglaukom mit erhöhtem IOD (HDG) und einer Kontrollgruppe ohne Glaukom (KTL) nach Gabe des lokalen Karboanhydrasehemmers Dorzolamid zu untersuchen. Methode: Die OPA, der intraokulare Druck (IOD), systolischer und diastolischer Blutdruck und die Herzfrequenz wurden bei 33 Kataraktpatienten mit (n = 14) und ohne (n = 19) HDG vor und 2 Tage nach Therapiebeginn bestimmt. Ergebnisse: Nach Gabe von Dorzolamid sank der IOD in den behandelten Augen der Patienten mit HDG und KTL hochsignifikant und in den Kontrollaugen signifikant ab, die OPA war nur in den behandelten Augen der Patienten mit HDG und KTL signifikant erhöht. Die systemischen Perfusionsparameter waren unbeeinflußt. Schlußfolgerung: Dorzolamid führt zu einem Anstieg der OPA bei Patienten mit HDG und KTL. Eine Steigerung der OPA könnte die Prognose beim HDG verbessern.
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Springer
    Monatsschrift Kinderheilkunde 146 (1998), S. 323-327 
    ISSN: 1433-0474
    Keywords: Schlüsselwörter Fukosidose ; α-L-Fukosidase ; Lysosomale Speichererkrankung ; Mutationen ; Molekulargenetik ; Key words Fucosidosis ; α-L-fucosidase ; Lysosomal storage disease ; Mutations ; Molecular genetics
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Summary Fucosidosis, a rare lysosomal storage disease due to nearly complete deficiency of α-L- fucosidase, was diagnosed in two unrelated male German patients who exhibited typical symptoms of this disorder including mental retardation, dysostosis multiplex, vacuolization of lymphocytes and progressive neurologic deterioration by the age of 3.2 and 4 years, respectively. In both cases, activity of α-L-fucosidase in leukocytes and cultivated fibroblasts was negligible. DNA analysis revealed a nonsense mutation (G401X) in exon 7 of the fucosidase gene; this leads to a premature stop codon and C-terminal deletion of 61 amino acids from the protein. Discussion: On account of the mutation a unique PFlMI restriction site is obliterated; this simplifies molecular diagnosis of the G401X mutation. So far, the mutation G401X has not been found in any other population.
    Notes: Zusammenfassung Die Fukosidose ist eine seltene lysosomale Speicherkrankheit, die durch eine starke Verminderung der Enzymaktivität der α-L-Fukosidase verursacht wird. Wir beschreiben 2 nicht verwandte, deutsche, männliche Patienten mit typischen Symptomen. Beide zeigten bis zum Alter von 3,2 bzw. 4 Jahren einen progredienten neurologischen Abbau, eine schwere mentale Retardierung, Zeichen einer Dysostosis multiplex und Speicherphänomene in Lymphozyten. Die α-L-Fukosi- dase-Aktivität in Leukozyten und Fibroblasten war stark vermindert (〈3% des Normalwertes). Die molekulargenetische Diagnostik deckte eine Nonsense-Mutation (G401X) in Exon 7 des α-L-Fukosidase-Gens auf, die zu einem vorzeitigen Stopkodon und so zum C-terminalen Verlust von 61 Aminosäuren des Enzymproteins führt. Diskussion: Durch die Mutation geht eine Spaltstelle des Restriktionsenzyms PflMI verloren, so daß ein rascher Nachweis mit Hilfe dieses Polymorphismus möglich ist. Bisher wurde die Mutation G401X in keiner anderen Population nachgewiesen.
    Type of Medium: Electronic Resource
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  • 5
    Electronic Resource
    Electronic Resource
    Springer
    Psychopharmacology 149 (2000), S. 93-97 
    ISSN: 1432-2072
    Keywords: Key words Yohimbine ; Alpha2A-adrenergic receptor ; 8OH-DPAT ; Serotonin1A receptor ; Nociception ; Formalin test
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract  Rationale: Previous studies have suggested that the α2-adrenergic receptor antagonist yohimbine produced antinociceptive effects in the formalin test in rats. However, yohimbine is also an agonist at serotonin (5-HT)1A receptors, suggesting the possibility that the antinociceptive effects of yohimbine might be mediated via these receptors. Objective: The purpose of the present studies was to evaluate the potential role of 5-HT1A receptors in mediating the antinociceptive effects of yohimbine. Methods: The antinociceptive effects of yohimbine were evaluated using the formalin test in rats. Results: Yohimbine (2.5–10 mg/kg s.c.) produced dose-related antinociception during both phase I and phase II of the formalin test, and was approximately equipotent and equiefficacious to morphine. The selective 5-HT1A receptor antagonist WAY 100,635 (0.03–3.0 mg/kg s.c.) produced a partial reversal of yohimbine. In comparison, the selective 5-HT1A receptor agonist (±)8-hydroxy- dipropylaminotetralin HBr (8OH-DPAT; 1.0 mg/kg s.c.) also produced a dose-related antinociception in the formalin test, although 8OH-DPAT was completely reversed by WAY 100,635 (3.0 mg/kg s.c.). The antinociceptive effects of yohimbine were not antagonized by the 5-HT1B/1D antagonist GR 127935 (1.0 mg/kg and 3.0 mg/kg s.c.), the 5-HT2 antagonist LY53857 (1.0 mg/kg s.c.), or the 5-HT3 antagonist zatosetron (3.0 mg/kg s.c.). Conclusions: The present results demonstrate that yohimbine produces a dose-related antinociception in the formalin test in rats which is mediated in part by the agonistic actions at 5-HT1A receptors.
    Type of Medium: Electronic Resource
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  • 6
    ISSN: 1573-8353
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
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  • 7
    ISSN: 1612-1112
    Keywords: Electrospray ionization ; Mass spectrometric detection ; Microdialysis ; Peptide analysis
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Summary Electrospray ionization mass spectrometry (ESI-MS) is an important tool for biomolecule analysis. Because the salt content of small-volume peptide samples can hamper analyte ionization, such samples require treatment before ESI-MS. The approach described here consists in interfacing ESI-MS with on-line microdialysis which affords rapid desalting and buffer-exchange. On-line microdialysis was performed by means of a hollow fiber (i.d. 200 μm) coupled to fused silica capillaries. Peptide samples were introduced into the capillary flow system as plugs and transferred to the dialysis cell and the electrospray by means of hydrodynamic pressure. As a result, the ionization efficiency of peptidic analytes was increased and adduct formation with, e.g., sodium, was reduced owing to reduced levels of nonvolatile salts. The feasibility of on-line microdialysis-ESI-MS is shown with a proteolytic digest originating from two-dimensional gel electrophoresis.
    Type of Medium: Electronic Resource
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  • 8
    Electronic Resource
    Electronic Resource
    New York, NY [u.a.] : Wiley-Blackwell
    Journal of Applied Biomaterials 6 (1995), S. 35-41 
    ISSN: 1045-4861
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Medicine , Technology
    Notes: In ligament replacement cases where the artificial ligament has worn and partially or totally ruptured, the released wear particles have been associated with a chronic synovitis that inhibits integration of the ligament and contributes to the ultimate failure of the device. In this study, the biological response to ligament wear particles from nine different artificial ligaments was quantitatively evaluated in vivo. Wear particles, the majority of which were 〈7 μm, were generated in vitro. These particles were injected into rabbit knee joints, and the biological response as well as the systemic migration of the particles were evaluated histologically after 4 weeks. The extent of the inflammatory reaction to the ligament wear particles was found to be significantly (p 〈 0.05) influenced by the type of material implanted. No particles were found in the regional lymph nodes or in the spleen, liver, kidney, or lung. © 1995 John Wiley & Sons, Inc.
    Additional Material: 4 Ill.
    Type of Medium: Electronic Resource
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