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  • 1
    Keywords: Biomedical Engineering methods ; Skin Diseases diagnosis ; Cosmetic Techniques ; Diagnostic Imaging methods ; Skin Physiological Phenomena ; Skin anatomy & histology ; Dermatology ; Pharmacology ; Occupational Diseases ; Toxicology
    Description / Table of Contents: Non-invasive bioengineering techniques have become indispensable tools both in the development of drugs and cosmetics and in clinical dermatology. These techniques enable researchers to study the structure and function of human skin objectively and quantitatively. Recent technological developments have brought new techniques into the laboratory and the hospital, among them magnetic resonance imaging, optical coherence tomography and microdialysis. This book describes these state-of-the-art developments, details the application of skin bioengineering techniques for clinical purposes, shows their use in the testing of pharmaceutics and cosmetics and provides an overview of the design and legal aspects of skin bioengineering testing. It will be essential reading for dermatologists, cosmetologists, pharmacologists and toxicologists
    Type of Medium: Online Resource
    Pages: X + 252 S
    Edition: Online-Ausg. Online-Ressource Karger eBooks Collection 1997-2009
    ISBN: 9783318002416
    Series Statement: Current problems in dermatology 26
    Language: English
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  • 2
    Keywords: Contact dermatitis ; Textile fabrics Physiological aspects ; Clothing and dress Health aspects ; Skin Diseases prevention & control ; Bandages ; Clothing ; Dermatitis, Contact etiology ; Skin Physiological Phenomena ; Textiles ; Dermatology ; Medical Engineering ; Pharmacology ; Preventive Medicine ; Textilien ; Hautkrankheit
    Description / Table of Contents: Completely new textile technologies have recently been developed with the goal of giving additional functionality to garments. Textiles have been improved to protect against UV radiation and toxic gases or to enhance breathability. In addition, they may have integrated sensors to diagnose medical conditions or may be equipped with carrier molecules to absorb substances from the skin and release therapeutic compounds. At the same time, the awareness of unwanted effects clothing may have on human health has increased. This volume familiarizes the dermatologist, allergologist and occupational physician with what he should know about textiles, and, on the other hand, the textile or chemical engineer with what he should know about the human skin. Further, it is divided into two parts the first of which discusses the functionality of textiles also in medicine, for instance in the prevention of skin infections or wound healing. The last part deals with allergic contact and irritant dermatitis and the risks of possible exposure to hazardous chemical residues in textiles. For the first time the knowledge of textile engineers and dermatologists has been brought together to stimulate a promising interchange
    Type of Medium: Online Resource
    Pages: Online-Ressource
    Edition: Karger eBooks Collection 1997-2009
    ISBN: 9783318008630
    Series Statement: Current problems in dermatology 31
    DDC: 616.97/3
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    Language: English
    Note: Includes bibliographical references and indexes , ""Contents""; ""Foreword""; ""What Dermatologists Should Know about Textiles""; ""What Textile Engineers Should Know about the Human Skin""; ""Clothing and Thermoregulation""; ""Clothing as Solar Radiation Protection""; ""Laundering in the Prevention of Skin Infections""; ""Functional Textiles in Prevention of Chronic Wounds,Wound Healing and Tissue Engineering""; ""Medical Elastic Compression Stockings in the Treatment of Venous Insufficiency""; ""Compression Treatment after Burns""; ""Occupational Contact Dermatitis in the Textile Industry"" , ""Irritant Dermatitis to Detergents in Textiles""""Textile Dyes as Allergic Contact Allergens""; ""Formaldehyde as a Textile Allergen""; ""Cutaneous Immediate-Type Reactions to Textiles""; ""Author Index""; ""Subject Index""
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  • 3
    ISSN: 1432-1173
    Keywords: Schlüsselwörter Berufsdermatosen ; Kontaktekzem ; Asthma bronchiale ; Hydroxychloroquin ; Key words Occupational dermatoses ; Contact dermatitis ; Asthma ; Delayed-type allergy to hydroxychloroquine
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Summary We report the case of a a 60 year-old worker in the pharmaceutical industry who suffered from recurring contact dermatitis. Initially the contact dermatitis was limited to the hands; later on it became generalized. The patient had been working on a drug filling line in a pharmaceutical plant for more than 20 years. Eight years after starting this job he had developed allergic hand dermatitis to 2,6-diaminopyridine (patch test positive); this healed upon cessation of exposure. Ten years later he again developed hand dermatitis which progressed to generalized dermatitis and conjunctivitis. Under systemic and local therapy with corticosteroids and cessation of work, it healed nearly completly. Four months after returning to work, the patient experienced a first episode of severe asthma and generalized dermatitis with conjunctivitis following exposure to hydroxychloroquine the day before. The asthma and dermatitis improved after systemic corticosteroid therapy and stopping work. His condition continued to fluctuate, when though the patient was transferred at work and now wore rubber gloves. Eight months later he again developed a generalized dermatitis. Patch testing revealed delayed-type sensitizations to hydroxychloroquine (tested in concentrations of 0.1%, 0.5%, 1% and 2%). Equivalent tests in five healthy volunteers were negative. The patch test reactions were pustular, while a biopsy was interpreted as a multiform contact dermatitis reaction. Bronchial exposure with hydroxychloroquine dust produced a delayed bronchial obstruction over the next 20 hours, which progressed to fever and generalized erythema (hematogenous contact dermatitis). After removing exposure to 2,6-diaminopyridine and hydroxychloroquine, the patient went on to develop a contact dermatitis to latex (patch test positive). However, skin prick tests with latex and patch tests with rubber additiva were negative. Hydroxychloroquine is well known to cause drug reactions. To our knowledge, contact dermatitis to this substance has not yet been reported. It is noteworthy that the patch test reactions were pustular and of multiform morphology and that bronchial exposure to the allergen resulted in asthma and a generalized drug reaction. Pathogenetically the asthmatic reaction seems to be on a delayed-type mechanism as is also seen with ampicillin, cobalt and nickel induced asthma.
    Notes: Zusammenfassung Bei einem 60jährigen Patienten, der über 20 Jahre in der Verarbeitung von Chemikalien in einer pharmazeutischen Industrie tätig war, traten wiederholt Ekzeme, zunächst an den Händen beschränkt, später generalisiert auf. Acht Jahre nach Arbeitsbeginn entwickelte sich ein allergisches Kontaktekzem der Hände auf 2,6-Diaminopyridin (positiver Epikutantest), welches nach einer strikten Expositionsprophylaxe nahezu abheilte. Zehn Jahre später kam es wieder zu einem Handekzem mit generalisierter Streureaktion und Konjunktivitis, welches unter systemischer Therapie mit Kortikosteroiden intern und lokal sowie Arbeitskarenz deutlich besserte. Weitere 4 Monate nach der Wiederaufnahme der Arbeit mußte der Patient notfallmäßig wegen erstmaligen massiven asthmatischen Beschwerden und einer generalisierten Ekzemreaktion mit Konjunktivitis den Hausarzt aufsuchen, nachdem er am Vortag der Substanz Hydroxychloroquin ausgesetzt war. Unter erneuter systemischer Steroidtherapie und Arbeitskarenz rasches Abheilen sowohl der Asthma- als auch der Hautsymptomatik. Nach einem Wechsel des Arbeitsplatzes und konsequentem Tragen von Gummihandschuhen stellte sich bezüglich des Handekzems ein ondulierender Verlauf ein, 8 Monate später kam es jedoch erneut zu einer generalisierten Ekzemstreuung. Die Epikutantestung ergab eine Typ- IV-Sensibilisierung auf Hydroxychloroquin (in 0,1%, 0,5%, 1% und 2% Konzentration getestet). Die Reaktion bei der höchsten Testkonzentration war pustulös und die histologische Untersuchung ergab eine multiforme-artige kontaktallergische Reaktion. Die Epikutanteste waren bei 5 gesunden Probanden negativ. Ein bronchialer Provokationstest mit Hydroxychloroquin-Staub führte zu einer verzögerten bronchialen Obstruktion 20 h nach der Exposition sowie zu Fieber, Konjunktivitis und zu einem generalisierten Exanthem (hämatogenes Kontaktekzem). Für die späteren Schübe nach Expositionsprophylaxe gegenüber 2,6-Diaminopyridin und Hydroxychloroquin konnte schließlich noch eine Latex-Kontaktallergie festgestellt werden. Der Latex-Prick und die Epikutantestung mit Gummiinhaltsstoffen waren negativ. Arzneimittelreaktionen auf Hydroxychloroquin bei systemischer Verabreichung sind bekannt. Ein Kontaktekzem auf diese Substanz wurde u.W. bisher noch nicht beschrieben. Besonders bemerkenswert sind die ungewöhnliche Testreaktion mit Pustelbildung, das multiforme-artige histologische Bild und die Entwicklung eines Asthma bronchiale mit generalisiertem hämatogenen Kontaktekzem auf die bronchiale Provokation. Pathogenetisch scheint auch der asthmatischen Reaktion ein Spättypmechanismus zugrunde zu liegen, wie etwa beim Ampicillin-, Kobalt- und Nickelasthma in der Literatur beschrieben.
    Type of Medium: Electronic Resource
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