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  • 1
    ISSN: 1433-0458
    Keywords: Schlüsselwörter Erbium:YAG-Laser ; Dermablation ; Skin ; resurfacing ; Key words Erbium:YAG laser ; Dermal ablation ; Skin resurfacing
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Summary The erbium:YAG laser (wavelength 2940 nm; pulse duration 0.350 ms; pulse energy 0.1–1.7 J) allows vaporization of very thin skin layers without scarring and minimal lateral thermal injury due to an extremely short pulse duration. It permits exact ablation of relatively large areas of facial skin. We report our results with 216 patients following treatment for different facial lesions (facial wrinkles, acne scars, syringomas, and circumscribed sebaceous gland hyperplasia) using a new erbium:YAG laser system. Good-to-excellent cosmetic results were obtained in these patients. Our findings show that the erbium:YAG laser is an elegant and promising new method for the treatment of facial lesions.
    Notes: Zusammenfassung Der Erbium:YAG-Laser (2940 nm Wellenlänge; 0,350 ms Pulsbreite; 0,1-1,7 J Pulsenergie) gewährleistet durch seine extrem kurze Impulsdauer eine narbenfreie Ablation sehr dünner Hautschichten mit Minimierung thermisch bedingter Schäden in der Umgebung der behandelten Hautareale. Er erlaubt ein kontolliertes, exaktes Arbeiten und ermöglicht eine großflächige Behandlung der Haut im Gesichtsbereich. Wir berichten über unsere Ergebnisse an 216 Patienten, die wegen verschiedener störender Hautveränderungen im Gesichtsbereich (Hautfältchen, Aknenarben, Syringome, Talgdrüsenhyperplasien) mit dem Erbium:YAG-Laser behandelt wurden und gute bis sehr gute kosmetische Ergebnisse nach der Laserbehandlung zeigten. Wir sehen in der Anwendung des Erbium:YAG-Laser eine elegante und vielversprechende neue Methode zur Behandlung verschiedener Gesichtshautveränderungen.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Molecular and cellular biochemistry 20 (1978), S. 85-93 
    ISSN: 1573-4919
    Keywords: Protochordate muscle ; Cyclostome muscle ; Ca2+-binding proteins ; Amphioxus ; Lamprey ; Vertebrate-invertebrate junction ; Mg2+-binding
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology , Medicine
    Notes: Summary A sarcoplasmic calcium-binding protein (SCP) has been purified from the muscle of the protochordate Amphioxus and shown to be more similar to invertebrate SCP's than to their counterpart found in vertebrates, i.e. parvalbumins. The Amphioxus protein has a pI of 4.9, is rich in tyrosine and tryptophan, has a molecular weight of 22,000 and binds strongly 2Ca2+ with a pK of 7.88. Magnesium competes with calcium for only one of the two metal-binding sites and induces positive cooperativity in Ca2+ binding. In cyclostome muscle (lamprey and hagfish), no protein with high affinity for Ca2+ or Mg2+ could be found, irrespective of molecular weight. Instead, a protein with moderate affinity for Ca2+ (⩽105 m −1) was detected: it has a molecular weight of 60,000 and might be quite ubiquitous, as the presence of a similar protein has been reported both in red and white muscle of vertebrates such as chicken and rabbit.
    Type of Medium: Electronic Resource
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