Contribution à l'étude toxicologique du salicylate de méthyle PDF Download

Author: André Queyment
Publisher:
ISBN:
Category :
Languages : fr
Pages : 76

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Author: Gail Cooper
Publisher: Pharmaceutical Press
ISBN: 0857110543
Category : Law
Languages : en
Pages : 657

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This invaluable textbook, written by international experts, covers all the main elements of forensic toxicology and analytical toxicology techniques as well as the important parts of pharmacokinetics, drug metabolism, and pharmacology in general, with a particular focus on drugs of abuse.

Author: Gary Stacey
Publisher: Springer Science & Business Media
ISBN: 1461560535
Category : Science
Languages : en
Pages : 238

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Plant-Microbe Interactions, Volume 2 Volume 1 of this series has made its appearance and dealt forcefully with impor tant current topics in the field of plant-microbe interactions. We believe that the quality of those chapters was high and should serve as a focal point for the state of the art as well as an enduring reference. Volume 2 builds upon these accom plishments. Chapter 1 discusses the fascinating lipo-chitin signal molecules from Rhizo bium, aspects regarding their biosynthesis, and the basis for host specificity. These molecules are a cardinal example of how microorganisms influence plant development and stimulate speculation that they have identified a previously un known aspect of plant hormone activity. Chapter 2 continues the discussion of Rhizobium by considering the trafficking of carbon and nitrogen in nodules. Al though the ostensible advantage of nodules to plants is the fixation of atmos pheric nitrogen, the actual process involved in supplying reduced nitrogen to the plant host is complex.

Author: Ingrid Emerit
Publisher: Springer Science & Business Media
ISBN: 1468457306
Category : Medical
Languages : en
Pages : 585

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Twenty years ago, the enzyme superoxide dismutase which uses the superoxide radical anion as its specific substrate was reported. With this discovery was born a new scientific field, in which oxygen, necessary for aerobi c 1 ife on thi s planet, had to be cons i dered also in terms of its toxicity and stresses. This stimulated the search for knowledge of active oxygen species in biology and medicine. Superoxide and other reactive oxygen species are now implicated in many disease processes. Major advances have been achieved during these past years with respect to free radical generation and mechanisms of free radical action in causing tissue injury. In parallel, the possibil ity of influencing free radical related disease processes by antioxidant treatment was studied in various in vitro and in vivo systems. This was the unique theme of a conference organized in Paris by the Society for Free Radical Research (December 9-10, 1988) which brought together experts from basic sciences and clinicians in order to evaluate the current status of antioxidant therapy. The conference emphasized fundamental processes in antioxidant action. Among the major topics were superoxide dismutase (SOD) and low molecular weight substances with such activity, called SOD mimics. Other antioxidant enzymes were also considered. Antioxidant vitamins, in particular vitamins E and C, other naturally occurri ng antioxidants and vari ous synthet i c antioxidants were included in the presentations as there is now a rapidly developing series of compounds with potentially interesting clinical applications.

Author: Theo Colborn
Publisher:
ISBN: 9780349108780
Category : Environmental health
Languages : en
Pages : 306

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For years, scientists have noticed disruptions in animal breeding cycles, accompanied by increases in birth defects, sexual abnormalities and reproductive failure. Humans are not immune either, with sperm counts dropping by as much as 50% in recent decades and with women seeing a rise in hormone-related cancers, endometriosis and other disorders. This book traces the cause of these aberrations and diseases to the pervasive presence in the environment of chemicals that mimic hormones and trick the reproductive system. The conclusions are as obvious as they are inescapable - unless we make vital changes in the way we manufacture and employ the artefacts of our good life , there will be no life at all.

Author: Axel Wibbertmann
Publisher:
ISBN:
Category : Medical
Languages : en
Pages : 58

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A concise assessment of the risks to human health and the environment posed by exposure to benzoic acid and sodium benzoate. Benzoic acid is used as an intermediate in the synthesis of several compounds, including phenol and caprolactam. The compound is increasingly used in the production of diethylene and dipropylene glycol dibenzoate plasticizers in adhesive formulations, and to improve the properties of alkyd resins for paints and coatings. Most releases of benzoic acid and sodium benzoate into the environment result from their use as preservatives in food, beverages, mouthwashes, dentifrices, and cosmetics. For sodium benzoate, the largest use is as an anticorrosive added to antifreeze coolants. Processed foodstuffs and soft drinks are considered the main sources of exposure for the general population. Concerning behavior in the environment, both compounds are readily biodegraded under aerobic conditions and are unlikely to bioaccumulate. In laboratory animals, exposure to high concentrations caused weight gain and adverse effects on the central nervous system, liver, and kidney. While data are limited, studies suggest that the compounds do not cause adverse effects on development or reproduction and are not carcinogenic. In humans, reports of adverse effects are largely confined to cases of urticaria, asthma, rhinitis, and anaphylactic shock following oral, dermal, or inhalation exposure to these compounds, including for medical purposes. No evaluation of long-term effects on health was possible in view of the limited data available

Author:
Publisher:
ISBN:
Category : Classification
Languages : en
Pages : 884

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Author:
Publisher:
ISBN:
Category : Chemistry
Languages : en
Pages : 884

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Author: National Library of Medicine (U.S.)
Publisher:
ISBN:
Category : Incunabula
Languages : en
Pages : 802

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"Collection of incunabula and early medical prints in the library of the Surgeon-general's office, U.S. Army": Ser. 3, v. 10, p. 1415-1436.

Author: Jean-Pierre Lepoittevin
Publisher: Springer Science & Business Media
ISBN: 3540741658
Category : Medical
Languages : en
Pages : 286

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Book Description
Here is a helpful guide, A-to-Z guide on the structures of chemicals implicated in contact dermatitis. It describes each molecule along with its principal name for classification. The dictionary also lists the most important synonyms, the Chemical Abstract Service (CAS) Registry Number that characterizes the substance and its chemical structure, and relevant literature references. This guide is a must-have for each physician involved with the diagnosis and treatment of patients with contact dermatitis and allergic skin disease.