Absorption Toxicity And Deposition Of Transition Metal Based Pharmaceuticals Following Oral Administration

Many of the pesticides applied to food crops in this country are present in foods and may pose risks to human health. Current regulations are intended to protect the health of the general population by controlling pesticide use. This book explores whether the present regulatory approaches adequately protect infants and children, who may differ from adults in susceptibility and in dietary exposures to pesticide residues. The committee focuses on four major areas: Susceptibility: Are children more susceptible or less susceptible than adults to the effects of dietary exposure to pesticides? Exposure: What foods do infants and children eat, and which pesticides and how much of them are present in those foods? Is the current information on consumption and residues adequate to estimate exposure? Toxicity: Are toxicity tests in laboratory animals adequate to predict toxicity in human infants and children? Do the extent and type of toxicity of some chemicals vary by species and by age? Assessing risk: How is dietary exposure to pesticide residues associated with response? How can laboratory data on lifetime exposures of animals be used to derive meaningful estimates of risk to children? Does risk accumulate more rapidly during the early years of life? This book will be of interest to policymakers, administrators of research in the public and private sectors, toxicologists, pediatricians and other health professionals, and the pesticide industry.

Oral Delivery of Therapeutic Peptides and Proteins provides a complete overview of the journey scientists pursue to attain protein and peptide oral delivery. The book highlights the physiological challenges that must be accounted for in addition to overcoming protease inhibition and acid stability issues that are commonly mentioned in this area of research. Primary topics include formulation technologies being adopted for oral delivery of proteins and peptides, modification of actives to make them more suited for oral delivery, animal models and their shortcomings in assessing oral bioavailability, and in vitro models to simulate drug absorption and transport. Academics and industry researchers working in formulation development and researchers and advanced students in biotechnology and pharmacy will find this a useful resource. Demonstrates how proteins and peptides transport throughout the gastrointestinal tract and how to evaluate their biological fate when encapsulated into certain delivery systems Examines developing technologies to improve future oral bioavailability Includes the in vitro and preclinical techniques needed for development

Highlighted in this compilation of papers is the role and importance of heavy metals in the environment. It provides up-to-date information in a field of active research and progress, where the focus is on effects and interactions between the environment and organisms, as well as contaminant dynamics. Several papers address the impact of heavy metals on our health. The influence of metals on plants is described in an exhaustive study on lichens, which have been widely used as biomonitors for environmental contamination by heavy metals. Metals are also accumulated by animals, as seen in a chapter which focusses on sediment/benthic organism interactions and biomonitoring in fish. Soil interactions are discussed, as well as regional studies of freshwater sediments and the marine environment. The final part of the book addresses a crucial problem: the management of stabilized municipal waste sludges. As a result, the most important and significant recent trends are included, emphasizing interactions with and impacts of heavy metals on humans, animals, plants and soils.

This book reviews the current diagnostic and therapeutic uses of metal-containing compounds in medicine, as well as the role of metals in disease.