concepts and models for drug permeability studies

Concepts And Models For Drug Permeability Studies
Author: Bruno Sarmento
Publisher: Woodhead Publishing
Release Date: 2015-09-30
Pages: 408
ISBN:
Available Language: English, Spanish, And French
EBOOK SYNOPSIS:

This book intends to be an updated compilation of the most important buccal, gastric, intestinal, pulmonary, nasal, vaginal, ocular, skin and blood-brain barrier in vitro models for predicting the permeability of drugs. Concepts and Models for Drug Permeability Studies focuses on different approaches and comprises of various models. Each model describes the protocol of seeding and conservation, the application for specific drugs, and takes into account the maintenance of physiologic characteristics and functionality of epithelium, from the simplest immortalized cell-based monoculture to the most complex engineered-tissue models. Chapters also discuss the equivalence between in vitro cell and tissue models and in vivo conditions, highlighting how each model may provisionally resemble a different drug absorption route. Updated information regarding the most recent in vitro models to study the permeability of drugs Short and concise chapters covering all the biological barriers with interest in drug permeability A combination of bibliographic information related with individual models and footnote instructions of technical procedures for construction of cell and tissue-based models Simple and clear scientific content, adaptable for young scientists and experimented researchers

Concepts And Models For Drug Permeability Studies  Cell And Tissue Based In Vitro Culture Models
Author:
Publisher:
Release Date:
Pages:
ISBN:
Available Language: English, Spanish, And French
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Nanotechnology For Oral Drug Delivery
Author: João Pedro Martins
Publisher: Academic Press
Release Date: 2020-07-30
Pages: 534
ISBN:
Available Language: English, Spanish, And French
EBOOK SYNOPSIS:

Nanotechnology for Oral Drug Delivery: From Concept to Applications discusses the current challenges of oral drug delivery, broadly revising the different physicochemical barriers faced by nanotechnolgy-based oral drug delivery systems, and highlighting the challenges of improving intestinal permeability and drug absorption. Oral delivery is the most widely used form of drug administration due to ease of ingestion, cost effectiveness, and versatility, by allowing for the accommodation of different types of drugs, having the highest patient compliance. In this book, a comprehensive overview of the most promising and up-to-date engineered and surface functionalized drug carrier systems, as well as opportunities for the development of novel and robust delivery platforms for oral drug administration are discussed. The relevance of controlling the physicochemical properties of the developed particle formulations, from size and shape to drug release profile are broadly reviewed. Advances in both in vitro and in vivo scenarios are discussed, focusing on the possibilities to study the biological-material interface. The industrial perspective on the production of nanotechnology-based oral drug delivery systems is also covered. Nanotechnology for Oral Drug Delivery: From Concept to Applications is essential reading for researchers, professors, advanced students and industry professionals working in the development, manufacturing and/or commercialization of nanotechnology-based systems for oral drug delivery, targeted drug delivery, controlled drug release, materials science and biomaterials, in vitro and in vivo testing of potential oral drug delivery technologies. Highlights the relevance of oral drug delivery in the clinical setting Covers the most recent advances in the field of nanotechnology for oral drug delivery Provides the scientific community with data that can facilitate and guide their research

Characterization Of Pharmaceutical Nano  And Microsystems
Author: Leena Peltonen
Publisher: John Wiley & Sons
Release Date: 2020-10-27
Pages: 416
ISBN:
Available Language: English, Spanish, And French
EBOOK SYNOPSIS:

Learn about the analytical tools used to characterize particulate drug delivery systems with this comprehensive overview Edited by a leading expert in the field, Characterization of Pharmaceutical Nano- and Microsystems provides a complete description of the analytical techniques used to characterize particulate drug systems on the micro- and nanoscale. The book offers readers a full understanding of the basic physicochemical characteristics, material properties and differences between micro- and nanosystems. It explains how and why greater experience and more reliable measurement techniques are required as particle size shrinks, and the measured phenomena grow weaker. Characterization of Pharmaceutical Nano- and Microsystems deals with a wide variety of topics relevant to chemical and solid-state analysis of drug delivery systems, including drug release, permeation, cell interaction, and safety. It is a complete resource for those interested in the development and manufacture of new medicines, the drug development process, and the translation of those drugs into life-enriching and lifesaving medicines. Characterization of Pharmaceutical Nano- and Microsystems covers all of the following topics: An introduction to the analytical tools applied to determine particle size, morphology, and shape Common chemical approaches to drug system characterization A description of solid-state characterization of drug systems Drug release and permeation studies Toxicity and safety issues The interaction of drug particles with cells Perfect for pharmaceutical chemists and engineers, as well as all other industry professionals and researchers who deal with drug delivery systems on a regular basis, Characterization of Pharmaceutical Nano- and Microsystems also belongs on bookshelves of interested students and faculty who interact with this topic.

The Theory Of Endobiogeny
Author: Kamyar M. Hedayat
Publisher: Academic Press
Release Date: 2019-06-18
Pages: 236
ISBN:
Available Language: English, Spanish, And French
EBOOK SYNOPSIS:

The Theory of Endobiogeny Volume 2: Foundational Concepts for Treatments of Common Clinical Conditions addresses the core elements of the adaptation response to stressors: autonomic nervous system (ANS), corticotropic axis, immunity and digestive tract function. The volume is oriented for clinical practice, offering clear discussions on treating the root cause of numerous common disorders, and symptomatically addressing the destabilizing factor in a vast number of disorders ranging from depression to irritable bowel, and from migraines to insomnia called spasmophilia. Extends the concepts of global systems integrative physiology to practical applications in the clinic Detailed explanations of historical, exam and biological modeling indexes related to the ANS, corticotropic axis, hepatobiliary and exocrine pancreatic function Root cause, mechanisms, symptoms and treatments for disorders of immunity, dysbiosis, infectious diseases and spasmophilia, as well as hepatobiliary and pancreatic insufficiency and congestion Materia medica of 22 key medicinal plants with summary of action and indication of usage according to the theory of Endobigoeny Special monodiets and dietary suggestions for disorder discussed

Absorption And Drug Development  Solubility  Permeability  And Charge State
Author: Alex Avdeef
Publisher: John Wiley & Sons
Release Date: 2012-05-22
Pages: 744
ISBN:
Available Language: English, Spanish, And French
EBOOK SYNOPSIS:

Explains how to perform and analyze the results of the latest physicochemical methods With this book as their guide, readers have access to all the current information needed to thoroughly investigate and accurately determine a compound's pharmaceutical properties and their effects on drug absorption. The book emphasizes oral absorption, explaining all the physicochemical methods used today to analyze drug candidates. Moreover, the author provides expert guidance to help readers analyze the results of their studies in order to select the most promising drug candidates. This Second Edition has been thoroughly updated and revised, incorporating all the latest research findings, methods, and resources, including: Descriptions and applications of new PAMPA models, drawing on more than thirty papers published by the author's research group Two new chapters examining permeability and Caco-2/MDCK and permeability and the blood-brain barrier Expanded information and methods to support pKa determination New examples explaining the treatment of practically insoluble test compounds Additional case studies demonstrating the use of the latest physicochemical techniques New, revised, and expanded database tables throughout the book Well over 200 drawings help readers better understand difficult concepts and provide a visual guide to complex procedures. In addition, over 800 references serve as a gateway to the primary literature in the field, facilitating further research into all the topics covered in the book. This Second Edition is recommended as a reference for researchers in pharmaceutical R&D as well as in agrochemical, environmental, and other related areas of research. It is also recommended as a supplemental text for graduate courses in pharmaceutics.

Current Technologies To Increase The Transdermal Delivery Of Drugs
Author: José Juan Escobar-Chávez
Publisher: Bentham Science Publishers
Release Date: 2010
Pages: 146
ISBN:
Available Language: English, Spanish, And French
EBOOK SYNOPSIS:

This e-book provides an overview of current technologies used to increase the topical/transdermal delivery of drugs, its protocols, advantages and limitations. It includes exclusive chapters on chemical enhancers, Iontophoresis, Sonophoresis, Electroporation, Microneedles and the more recent use of micro/nanoparticles to deliver drugs throughout the skin. The e-book's generalized approach on the topic is aimed to be helpful in drug discovery, drug delivery and toxicological research and to provide a broader perspective on the topic to readers with respect to current literature available on the.

CONTROLLED DRUG DELIVERY BASIC CONCEPTS
Author: Stephen D. Bruck
Publisher: CRC-Press
Release Date: 1983-04-12
Pages: 200
ISBN:
Available Language: English, Spanish, And French
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Drug Like Properties
Author: Li Di
Publisher: Academic Press
Release Date: 2015-12-17
Pages: 580
ISBN:
Available Language: English, Spanish, And French
EBOOK SYNOPSIS:

Of the thousands of novel compounds that a drug discovery project team invents and that bind to the therapeutic target, only a fraction have sufficient ADME (absorption, distribution, metabolism, elimination) properties, and acceptable toxicology properties, to become a drug product that will successfully complete human Phase I clinical trials. Drug-Like Properties: Concepts, Structure Design and Methods from ADME to Toxicity Optimization, Second Edition, provides scientists and students the background and tools to understand, discover, and develop optimal clinical candidates. This valuable resource explores physiochemical properties, including solubility and permeability, before exploring how compounds are absorbed, distributed, and metabolized safely and stably. Review chapters provide context and underscore the importance of key concepts such as pharmacokinetics, toxicity, the blood-brain barrier, diagnosing drug limitations, prodrugs, and formulation. Building on those foundations, this thoroughly updated revision covers a wide variety of current methods for the screening (high throughput), diagnosis (medium throughput) and in-depth (low throughput) analysis of drug properties for process and product improvement. From conducting key assays for interpretation and structural analysis, the reader learns to implement modification methods and improve each ADME property. Through valuable case studies, structure-property relationship descriptions, and structure modification strategies, Drug-Like Properties, Second Edition, offers tools and methods for ADME/Tox scientists through all aspects of drug research, discovery, design, development, and optimization. Provides a comprehensive and valuable working handbook for scientists and students in medicinal chemistry Includes expanded coverage of pharmacokinetics fundamentals and effects Contains updates throughout, including the authors’ recent work in the importance of solubility in drug development; new and currently used property methods, with a reduction of seldom-used methods; and exploration of computational modeling methods

Concepts In Biochemical Pharmacology
Author: Bernard B. Brodie
Publisher:
Release Date: 1971
Pages:
ISBN:
Available Language: English, Spanish, And French
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Asthma
Author: A. Louise Sugden
Publisher:
Release Date: 1997
Pages: 60
ISBN:
Available Language: English, Spanish, And French
EBOOK SYNOPSIS:

Despite the great successes in recent years in the treatment of asthma, the problems of this disease are now affecting more people than ever before. Such is the importance of this disease that the British Pharmaceutical Conference (1996) devoted two full days to the matter, exploring the scientific background, the current medical treatment and public attitudes. New advances in understanding the disease and new drug developments were described by a range of experts from the pharmaceutical industry and from clinical academics. The considerable advances being made in understanding the biochemistry of asthma, with the new discipline of biotechnology playing a major role, were also discussed. The papers published in this collection are essential reading for all those who wish to stay abreast of progress in this challenging field.

Oral Bioavailability
Author: Xiaoling Li
Publisher: John Wiley & Sons
Release Date: 2011-08-04
Pages: 560
ISBN:
Available Language: English, Spanish, And French
EBOOK SYNOPSIS:

Understand and assess the design, delivery, and efficacy of orally administered drugs A practical guide to understanding oral bioavailability, one of the major hurdles in drug development and delivery, Oral Bioavailability: Basic Principles, Advanced Concepts, and Applications is designed to help chemists, biologists, life science researchers, pharmaceutical scientists, pharmacologists, clinicians, and graduate and students become familiar with the fundamentals and practices of the science of oral bioavailability. The difference in rate and extent between a drug taken orally and the actual amount of a drug reaching the circulatory system, oral bioavailability is an essential parameter for determining the efficacy and adverse effects of new and developing medications, as well as finding an optimal dosing regimen. This book provides a much-needed one-stop resource to help readers better understand and appreciate the many facets and complex problems of oral bioavailability, including the basic barriers to oral bioavailability, the methods used to determine relevant parameters, and the challenges of drug delivery. In addition, this comprehensive book discusses biological and physicochemical methods for improving bioavailability, integrates physicochemistry with physiology and molecular biology, and includes several state-of-the-art technologies and approaches—Caco-2 cell culture model, MDCK, and other related cell culture models—which are used to study the science of oral bioavailability.

Concepts In Biochemical Pharmacology
Author: H.S. Ackermann
Publisher: Springer
Release Date: 1971
Pages: 472
ISBN:
Available Language: English, Spanish, And French
EBOOK SYNOPSIS:

This volume of the Handbook of Experimental Pharmacology (Concepts in Biochemical Pharmacology) will show that pharma cology has finally arrived as a true discipline in its own right, and is no longer the handmaiden of organic chemistry and physiology. Instead it is an amalgam of all the biological sciences including biochemistry, biophysical chemistry, physiology, pathology and clinical medicine. In the volumes that make up Concepts in Bioche mical Pharmacology we hope to convince Medical Schools what should now be obvious, that pharmacology is no longer that dull topic bridging the basic sciences with medicine, but is probably the most important subject in the medical curriculum. We are grateful for the advice of Dr. BYRON CLARKE, Director of the Pharmacology-Toxicology Program at the National Insti tutes of Health, whose support made possible much of the work described in this volume. Contents Section One: Routes of Drug Administration Chapter 1: Biological Membranes and Their Passage by Drugs. C. A. M. HOGBEN 1 References. . . . . . . . . . . . . . . . . . . . . . . . . . 8 Chapter 2: Absorption of Drugs from the Gastrointestinal Tract. L. S. SCHANKER. With 5 Figures. 9 I. Introduction. . . . . . . . . . . . . . . . . . . . . . . 9 II. Methods of Study. . . . . . . . . . . . . . . . . . . . . 9 III. Absorption from the Stomach . . . . . . . . . . . . . . . 11 IV. Intestinal Absorption of Non-Electrolytes and Weak Electrolytes 15 V. Absorption of Weak Electrolytes from the Colon and Rectum 18 VI. Intestinal Absorption of Organic Ions. . . . . . . . . . 19 VII. Intestinal Absorption of Macromolecules . . . . . . . . . . 19 VIII. Active Transport across the Intestinal Epithelium . . . . . 20 IX. Effect of EDTA on Drug Absorption from the Intestine . . . . . . .

Pharmacokinetic Optimization In Drug Research
Author: Bernard Testa
Publisher: John Wiley & Sons
Release Date: 2001-03-26
Pages: 655
ISBN:
Available Language: English, Spanish, And French
EBOOK SYNOPSIS:

In this age of combinatorial chemistry and high-throughput technologies, bioactive compounds called hits are discovered by the thousands. However, the road that leads from hits to lead compounds and then to pharmacokinetically optimized clinical and drug candidates is very long indeed. As a result, the screening, design, and optimization of pharmacokinetic properties has become the bottleneck and a major challenge in drug research. To shorten the time-consuming develop-ment and high rate of attrition of active compounds ultimately doomed by hidden pharmacokinetic defects, drug researchers are coming to incorporate structure-permeation, structure-distribution, structure-metabolism, and structure-toxicity relations into drug-design strategies. To this end, powerful biological, physicochemical, and computational approaches are being developed whose objectives are to increase the clinical relevance of drug design, and to eliminate as soon as possible compounds with unfavorable physicochemical properties and pharmacokinetic profiles. Toxicological issues are also of utmost importance in this paradigm. There was, hence, an urgent need for a book covering this field in an authoritative, didactic, comprehensive, factual, and conceptual manner. In this work of unique breadth and depth, international authorities and practicing experts from academia and industry present the most modern biological, physicochemical, and computational strategies to optimize gastrointestinal absorption, protein binding and distribution, brain permeation, and metabolic profile. The biological strategies emphasized in the book include cell cultures and high-throughput screens. The physicochemical strategies focus on the determination and interpretation of solubility, lipophilicity, and related molecular properties as factors and predictors of pharmacokinetic bahavior. Particular attention is paid to the lipophilicity profiles of ionized compounds, to lipophilicity measurements in anisotropic media (liposomes/water, IAM columns), and to permeability across artificial membranes. Computational strategies comprise virtual screening, molecular modelling, lipophilicity, and H-bonding fields and their importance for structure-disposition relations. This book is both about theoretical and technological breakthroughs. Thus, molecular properties are contemplated from a dual perspective, namely a) their interpretation in biological and/or physicochemical terms, and b) their value in screening, lead optimization, and drug-candidate selection. In addition to its 33 chapters, the book includes a CD-ROM containing the invited lectures, oral communications and posters (in full version) presented at the Second LogP Symposium, 'Lipophilicity in Drug Disposition—Practical and Computational Approaches to Molecular Properties Related to Drug Permeation, Disposition and Metabolism', held at the University of Lausanne in March 2000.

Drug Discovery And Development   E Book
Author: Raymond G Hill
Publisher: Elsevier Health Sciences
Release Date: 2012-07-20
Pages: 368
ISBN:
Available Language: English, Spanish, And French
EBOOK SYNOPSIS:

The modern pharmacopeia has enormous power to alleviate disease, and owes its existence almost entirely to the work of the pharmaceutical industry. This book provides an introduction to the way the industry goes about the discovery and development of new drugs. The first part gives a brief historical account from its origins in the mediaeval apothecaries’ trade, and discusses the changing understanding of what we mean by disease, and what therapy aims to achieve, as well as summarising case histories of the discovery and development of some important drugs. The second part focuses on the science and technology involved in the discovery process: the stages by which a promising new chemical entity is identified, from the starting point of a medical need and an idea for addressing it. A chapter on biopharmaceuticals, whose discovery and development tend to follow routes somewhat different from synthetic compounds, is included here, as well as accounts of patent issues that arise in the discovery phase, and a chapter on research management in this environment. The third section of the book deals with drug development: the work that has to be undertaken to turn the drug candidate that emerges from the discovery process into a product on the market. The definitive introduction to how a pharmaceutical company goes about its business of discovering and developing drugs. The second edition has a new editor: Professor Raymond Hill ● non-executive director of Addex Pharmaceuticals, Covagen and of Orexo AB ● Visiting Industrial Professor of Pharmacology in the University of Bristol ● Visiting Professor in the School of Medical and Health Sciences at the University of Surrey ● Visiting Professor in Physiology and Pharmacology at the University of Strathclyde ● President and Chair of the Council of the British Pharmacological Society ● member of the Nuffield Council on Bioethics and the Advisory Council on Misuse of Drugs. New to this edition: Completely rewritten chapter on The Role of Medicinal Chemistry in the Drug Discovery Process. New topic - DMPK Optimization Strategy in drug discovery. New chapter on Scaffolds: Small globular proteins as antibody substitutes. Totally updated chapters on Intellectual Property and Marketing 50 new illustrations in full colour Features Accessible, general guide to pharmaceutical research and development. Examines the interfaces between cost and social benefit, quality control and mass production, regulatory bodies, patent management, and all interdisciplinary intersections essential to effective drug development. Written by a strong team of scientists with long experience in the pharmaceutical industry. Solid overview of all the steps from lab bench to market in an easy-to-understand way which will be accessible to non-specialists. From customer reviews of the previous edition: ‘... it will have everything you need to know on this module. Deeply referenced and, thus, deeply reliable. Highly Commended in the medicine category of the BMA 2006 medical book competition Winner of the Royal Society of Medicine Library Prize for Medical Book of the Year

CONCEPTS IN TOPICAL DRUG DELIVERY  VEHICLE INFLUENCES ON THE DELIVERY OF MINOXIDIL FROM A SOLUTION SYSTEM
Author: JUI-CHEN TSAI
Publisher:
Release Date: 1992
Pages: 162
ISBN:
Available Language: English, Spanish, And French
EBOOK SYNOPSIS:

epidermis under in vitro conditions. Dermal concentrations were more comparable. Both the plasma and dermal profiles of minoxidil and propylene glycol seem to suggest a significant role exists for transappendageal absorption of the drug.

Current Concepts In
Author: James Swarbrick
Publisher:
Release Date: 1973
Pages:
ISBN:
Available Language: English, Spanish, And French
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Medical Pharmacology  Principles And Concepts
Author: Andres Goth
Publisher:
Release Date: 1972
Pages: 704
ISBN:
Available Language: English, Spanish, And French
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Concepts In Topical Drug Delivery
Author: Cecily Barbara Lalor
Publisher:
Release Date: 1994
Pages:
ISBN:
Available Language: English, Spanish, And French
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Current Concepts In The Pharmaceutical Sciences  Dosage Form Design And Bioavailability
Author: James Swarbrick
Publisher:
Release Date: 1973
Pages: 230
ISBN:
Available Language: English, Spanish, And French
EBOOK SYNOPSIS: