Skin absorption

Xem 1-9 trên 9 kết quả Skin absorption
  • Tham khảo sách 'nickel and the skin absorption, immunology, epidemiology, and metallurgy', y tế - sức khoẻ, y học thường thức phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả

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  • Since this book was first published in 1998, there have been significant advances in our understanding of the morphology of the skin and the properties that govern the transport of molecules into and across the three major strata. The multitude of data that has been generated has allowed the development of predictive models for both the rate and extent of dermal absorption and has increased our ability to predict the likelihood of local toxic events subsequent to solute penetration and permeation.

    pdf706p hotmoingay 04-01-2013 20 3   Download

  • Paradoxically, skin is both a primary barrier to systemic absorption of topically exposed chemicals and a portal to systemic delivery of transdermal medicaments. Knowledge of the factors that determine both extent and rate of chemical flux across the skin is an important component of both toxicology and pharmacology studies. The aim of this book is to provide current approaches and techniques by which dermal absorption may be quantitated utilizing end points relative to these two disciplines.

    pdf387p mnemosyne75 02-02-2013 25 6   Download

  • Second, economic adjustment within the euro area is continuing. This is most visible in the reduction of large current-account deficits driven by partly permanent declines in domestic absorption and gains in competitiveness, but is also apparent in gradually rising wages and domestic demand in surplus countries. Internal and external adjustment has farther to go, and it will have to be sustained over time to see an impact on stocks of domestic and external liabilities.

    pdf39p trinhcaidat 19-04-2013 29 3   Download

  • Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành hóa học dành cho các bạn yêu hóa học tham khảo đề tài: Dermal absorption of aromatic amines in workers with different skin lesions: a report on 4 cases

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  • A Abatement: Reducing the degree or intensity of, or eliminating, pollution. Abatement Debris: Waste from remediation activities. Absorbed Dose: In exposure assessment, the amount of a substance that penetrates an exposed organism's absorption barriers (e.g.,, skin, lung tissue, gastrointestinal tract) through physical or biological processes. The term is synonymous with internal dose. Absorption Barrier: Any of the exchange sites of the body that permit uptake of various substances at different rates (e.g., skin, lung tissue, and gastrointestinal-tract wall).

    pdf217p holigon10 15-06-2012 337 146   Download

  • Immunologic Effects Exposure to solar radiation causes local (inhibition of immune responses to antigens applied at the irradiated site) and systemic (inhibition of immune responses to antigens applied at remote unirradiated sites) immunosuppression. The action spectrum for UV-induced immunosuppression closely mimics the absorption spectrum of DNA. Pyrimidine dimers in LCs may inhibit antigen presentation. The absorption spectrum of epidermal urocanic acid closely mimics the action spectrum for UV-B-induced immunosuppression.

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  • Laser hair removal focuses on the endogenous chromophore melanin, which is mainly found in the hair shaft, with a small amount present in the upper third of the follicular epithelium (Figure 1). When an appropriate energy source (such as a laser) is directed at the skin, light is primarily absorbed in the hair shaft melanin. Heat is generated and diffuses to the surrounding follicular epithelium. A similar principle applies to laser treatment of vascular lesions, where the heat generated after absorption by hemoglobin is transferred from the blood to the vascular endothelial cells. ...

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  • Nutritional Iron Balance The balance of iron in humans is tightly controlled and designed to conserve iron for reutilization. There is no regulated excretory pathway for iron, and the only mechanisms by which iron is lost from the body are blood loss (via gastrointestinal bleeding, menses, or other forms of bleeding) and the loss of epithelial cells from the skin, gut, and genitourinary tract. Normally, the only route by which iron comes into the body is via absorption from food or from medicinal iron taken orally.

    pdf5p thanhongan 07-12-2010 29 2   Download

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