Author: H. Schaefer
Publisher: Springer Science & Business Media
ISBN: 3642687342
Category : Medical
Languages : en
Pages : 365

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Book Description

Author: T. Agner
Publisher: Karger Medical and Scientific Publishers
ISBN: 3318055867
Category : Medical
Languages : en
Pages : 172

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Book Description
Although a very fragile structure, the skin barrier is probably one of the most important organs of the body. Inward/out it is responsible for body integrity and outward/in for keeping microbes, chemicals, and allergens from penetrating the skin. Since the role of barrier integrity in atopic dermatitis and the relationship to filaggrin mutations was discovered a decade ago, research focus has been on the skin barrier, and numerous new publications have become available. This book is an interdisciplinary update offering a wide range of information on the subject. It covers new basic research on skin markers, including results on filaggrin and on methods for the assessment of the barrier function. Biological variation and aspects of skin barrier function restoration are discussed as well. Further sections are dedicated to clinical implications of skin barrier integrity, factors influencing the penetration of the skin, influence of wet work, and guidance for prevention and saving the barrier. Distinguished researchers have contributed to this book, providing a comprehensive and thorough overview of the skin barrier function. Researchers in the field, dermatologists, occupational physicians, and related industry will find this publication an essential source of information.

Author: Peter M. Elias
Publisher: CRC Press
ISBN: 084936129X
Category : Medical
Languages : en
Pages : 634

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Book Description
A must-have reference for any researcher or scientist interested in cutaneous protective mechanisms, this guide provides expertly researched chapters on every aspect of stratum corneum structure, function, and development, as well as detailed sections on barrier-repair strategies and the role of barrier function in diseases such as atopic dermatiti

Author: Heather A. E. Benson
Publisher: John Wiley & Sons
ISBN: 1118140494
Category : Medical
Languages : en
Pages : 393

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Book Description
Practical drug development approaches presented by leading experts Designed to support the development of new, effective therapeutics, Topical and Transdermal Drug Delivery: Principles and Practice explains the principles underlying the field and then demonstrates how these principles are put into practice in the design and development of new drug products. Drawing together and reviewing the latest research findings, the book focuses on practical, tested, and proven approaches that are backed by industry case studies and the authors' firsthand experience. Moreover, the book emphasizes the mechanistic information that is essential for successful drug product development. Topical and Transdermal Drug Delivery: Principles and Practice is divided into two parts: Part One, Current Science, Skin Permeation, and Enhancement Approaches, offers readers a fundamental understanding of the underlying science in the field. It describes the principles and techniques needed to successfully perform experimental approaches, covering such issues as skin permeation, enhancement, and assessment. Part Two, Topical and Transdermal Product Development, guides readers through the complete product development process from concept to approval, offering practical tips and cautions from experts in the field. This part also discusses regulations that are specific to the development of dermal drug products. The final chapter explores current and future trends, forecasting new development techniques and therapeutics. Throughout the book, the authors clearly set forth the basic science and experimental procedures, making it possible for researchers to design their own experimental approaches and accurately interpret their results. With contributions from experienced drug researchers, this text is highly recommended for all researchers involved in topical and transdermal product development who need to know both the state of the science and the standards of practice.

Author: Ranjita Shegokar
Publisher: William Andrew
ISBN: 0323401139
Category : Technology & Engineering
Languages : en
Pages : 291

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Book Description
Emerging Nanotechnologies in Immunology aims to deliver a systematic and comprehensive review of data concerning the nature of interaction and nano-related risks between the nanophamaceuticals currently in the pipeline of S&T development for skin, ocular, and nasal drug delivery, including absorption, toxicity, and the ability to distribute after systemic exposure.The scientific development of manufactured nanomaterials for drug delivery is increasing rapidly. One of the most prominent applications is topical drug delivery, where cutaneous, ocular, and nasal exposure becomes even more relevant. These targets are the first barrier that nanoparticles encounter when in contact with the human body.The contributors addresses a representative set of the broad spectrum of nanopharmaceuticals currently being used, including cationic lipid nanoparticles, polymeric PLGA, PLA nanoparticles, biomacromolecules-based nanoparticles, and other scaffolds tissue engineered skin substitutes. Regulation and risk is also covered, since the safety of these nanophamaceuticals still represents a barrier to their wide innovative use. - Provides the reader with a thorough knowledge of the safety aspects of nanopharmaceuticals which are currently under research - Focuses on the characterization and quantification of the nanopharmaceuticals - Allows readers to understand the correlation between the nature of the materials and their potential nanotoxicological effects - Includes an overview of regulatory aspects related to the R&D of nanopharmaceuticals

Author: C. Surber
Publisher: Karger Medical and Scientific Publishers
ISBN: 3318063851
Category : Medical
Languages : en
Pages : 214

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Book Description
The concept of expressing acidity as the negative logarithm of the hydrogen ion concentration was defined and termed pH in the beginning of the 20th century. The general usefulness of the pH concept for life science was recognized and later gained importance to analytical research. Reports on results of pH measurements from living skin established the term acid mantle - the skin's own protective shield that maintains a naturally acid pH. It is invisible to the eye but crucial to the overall wellbeing of skin. Chronic alkalization can throw this acid mantle out of balance, leading to inflammation, dermatitis, and atopic skin diseases. It is therefore no surprise, that skin pH shifts have been observed in various skin pathologies. It is also obvious that the pH in topically applied preparations may play an important role. Optimal pH and buffer capacity within topical preparations not only support stability of active ingredients and auxiliary materials, but may also increase absorption of the non-ionized species of an acidic or a basic active ingredient. They may even open up opportunities to modify and "correct" skin pH and hence accelerate barrier recovery and maintain or enhance barrier integrity. Further efforts are needed to standardize and improve pH measurements in biological media or pharmaceutical/cosmetic vehicles to increase and ensure quality, comparability, and relevance of research data. In this volume, we present a unique collection of papers that address past, present and future issues of the pH of healthy and diseased skin. It is hoped that this collection will foster future efforts in clinical and experimental skin research.

Author: Robert Chilcott
Publisher: John Wiley & Sons
ISBN: 0470773081
Category : Science
Languages : en
Pages : 392

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Book Description
Written by authorities in the field, this book provides a “bottom up” approach to studying skin toxicology. Principles and Practice of Skin Toxicology clearly outlines basic concepts, cites historical and modern references and contains a dictionary for easy reference. The inclusion of global legislation and regulatory aspects on the topic makes this a comprehensive review for every practitioner, clinical researcher in industry and academia, and MSc and PhD student of toxicology. Different sections cover skin structure and function, principles and measurement of skin absorption, clinical aspects of dermal toxicity and in vitro alternatives. A section on regulatory and legislative aspects includes case studies from the UK that fulfill European Union and US FDA requirements. A glossary provides definitions of technical terms, and the chapters contain an introduction, learning boxes and summary section for ease of use. Includes a chapter on drug delivery through the skin. Addresses risk assessment: a key area for the interpretation of skin absorption data that is rarely covered.

Author: Robert L. Bronaugh
Publisher: CRC Press
ISBN: 9781420000948
Category : Science
Languages : en
Pages : 992

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Book Description
Since publication of the Second Edition in 1989, numerous innovations have occurred that affect the way scientists look at issues in the field of percutaneous absorption. Focusing on recent advances as well as updating and expanding the scope of topics covered in the previous edition, Percutaneous Absorption, Third Edition provides thorough coverage of the skin's role as an important portal of entry for chemicals into the body. Assembles the work of nearly 80 experts-30 more than the Second Edition-into a unified, comprehensive volume that contains the latest ideas and research! Complete with nearly 600 drawings, photographs, equations, and tables and more than 1600 bibliographic citations of pertinent literature, Percutaneous Absorption, Third Edition details the applied biology of percutaneous penetration factors that affect skin permeation, such as age, vehicles, metabolism, hydration of skin, and chemical structure in vivo and in vitro techniques for measuring absorption, examining factors influencing methodology such as animal models, volatility of test compound, multiple dosage, and artificial membranes procedures for use in transdermal delivery, exploring topics such as effects of penetration enhancers on absorption, optimizing absorption, and the topical delivery of drugs to muscle tissue And presents new chapters on mathematical models cutaneous metabolism prediction of percutaneous absorption in vitro absorption methodology dermal decontamination concentration of chemicals in skin transdermal drug delivery mechanisms of absorption safety evaluation of cosmetics absorption of drugs and cosmetic ingredients nail penetration Emphasizes human applications-particularly useful for pharmacists, pharmacologists, dermatologists, cosmetic scientists, biochemists, toxicologists, public health officials, manufacturers of cosmetic and toiletry products, and graduate students in these disciplines! An invaluable reference source for readers who need to keep up with the latest developments in the field, Percutaneous Absorption, Third Edition is also an excellent experimental guide for laboratory personnel.

Author: Michael S. Roberts
Publisher: CRC Press
ISBN: 0849375924
Category : Medical
Languages : en
Pages : 706

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Book Description
The source Dermal Absorption and Toxicity Assessment supplies a state-of-the-art overview of the dermal absorption process, and is divided into six well organized sections. Written by internationally recognized experts in the field, this Second Edition is a complete revised and updated text, covering the wide range of methods used to assess skin ab

Author: Kenji Sugibayashi
Publisher: Springer
ISBN: 4431565264
Category : Medical
Languages : en
Pages : 410

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Book Description
This book reviews skin permeation and disposition of chemical compounds. Skin is utilized as an administration site for transdermal drug delivery systems, topical drug formulations, cosmeceuticals, and cosmetics. Their usefulness is closely related to the permeation and disposition of entrapped active ingredients through and into the skin. Skin permeation, disposition, and metabolism of chemicals are first summarized in the general introduction. Then primary topical formulations are explained in the second part, “Basic Formulations Applied to Skin”. The explanation for the active compounds and formulations are of the most important parts required to fabricate these formulations. Skin absorption of chemicals is generally much lower than oral and the other mucosal absorptions, so that skin-penetration enhancement is a key issue to have good formulations topically applied. Part 3 presents “Skin Penetration Enhancement”. In addition, Part 4, “Selection of Topically Applied Chemical Candidates”, deals with selection methods of topically applied ingredients for transdermal drug delivery systems, topical drug formulations, cosmeceuticals, and cosmetics. Parts 5 and 6, “Safety Assessment of Topically Applied Compounds“ and “Experimental Methods of Skin Permeation“, respectively, show safety issues and experimental methods for topical formulations. The final part consists of comments on therapeutic and cosmetic formulations by medical doctors and pharmacists. Their comments are especially helpful for pharmaceutical and cosmetic researchers who study dermatopharmacokinetics and topical formulations. This volume is particularly useful for those working in R&D, graduate students, and educators in the area of pharmaceutics, cosmetic sciences, dermatological sciences, pharmacology, toxicology, biopharmacy, pharmacokinetics, physical pharmacy, chemical engineering, and related fields.