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Author: Paolo Vineis Publisher: ISBN: Category : Medical Languages : en Pages : 530
Book Description
The study of interactions between genes and environmental exposures ha s expanded considerably in recent years. Highly penetrant genes that a re involved in familial cancer have been identified, but are likely to account for a relatively small proportion of total cancers. Other pre disposing genes have low penetrance, resulting in a moderate increase in the risk of specific cancers, but are widespread in the general pop ulation. This is the case for so-called metabolic polymorphisms. Scien tific interest in metabolic polymorphisms is based on the possibility of identifying subgroups of the population which are at elevated risk of developing environmentally-induced cancer. However, such studies ra ise a series of problems that are methodological - related to the stud y design and analysis - and ethical - related to the practical use tha t can be made of genetic information. This volume deals thoroughly wit h such problems.
Author: Paolo Vineis Publisher: ISBN: Category : Medical Languages : en Pages : 530
Book Description
The study of interactions between genes and environmental exposures ha s expanded considerably in recent years. Highly penetrant genes that a re involved in familial cancer have been identified, but are likely to account for a relatively small proportion of total cancers. Other pre disposing genes have low penetrance, resulting in a moderate increase in the risk of specific cancers, but are widespread in the general pop ulation. This is the case for so-called metabolic polymorphisms. Scien tific interest in metabolic polymorphisms is based on the possibility of identifying subgroups of the population which are at elevated risk of developing environmentally-induced cancer. However, such studies ra ise a series of problems that are methodological - related to the stud y design and analysis - and ethical - related to the practical use tha t can be made of genetic information. This volume deals thoroughly wit h such problems.
Author: Aga Syed Sameer Publisher: Springer Nature ISBN: 9813366990 Category : Medical Languages : en Pages : 353
Book Description
This book discusses the role of genetic polymorphism in susceptibility to cancers. The book explores the understanding of differences between the genetic polymorphisms and mutations.It reviews the mechanisms underlying the effect of polymorphism in genes encoding proteins that play an essential role in metabolism, signal transduction, cell cycle, and DNA repair mechanisms. Further, it investigates various techniques that are used for analyzing the genetic polymorphisms. The book contains many chapters which summarize the importance of genetic information obtained from polymorphism-based pharmaco-genetic tests to predict better drug response and life-threatening adverse reactions to chemotherapeutic agents, help in understanding of the impact of SNPs on gene function, and gives overview of the different SNP databases for examination. This book, therefore, serves as an essential guidebook for independent researchers as well as institutions working in this specialised field.
Author: Dr.A. Anuradha Publisher: Lulu.com ISBN: 1387457489 Category : Education Languages : en Pages : 164
Book Description
Cancer is a term used to describe diseases in which abnormal cells divide without control and are able to invade different tissues. Cancer cells can spread to various parts of the body through the blood and lymph systems. There are more than 100 different kinds of cancers. Cancers are often named for the organ or type of cell in which they start - for example, colon cancer means cancer in the colon. Different Cancers can be grouped into broader categories.
Author: Maria Shuk Mun Lam Publisher: ISBN: Category : Languages : en Pages : 0
Book Description
Bioactivation of environmental procarcinogens and prolonged exposure to 17ß-estradiol and catechol estrogens have been implicated in the etiology of mammary carcinogenesis. Endogenous 17ß-estradiol is oxidized to catechol estrogens by cytochrome P450 CYP1A2 and CYP1B1 enzymes which are transcriptionally regulated by the AH receptor. These enzymes are also involved in the bioactivation of numerous environmental procarcinogens such as benzo['a']pyrene. Consequently, those genetic polymorphisms in 'CYP1A2, CYP1B1' and 'AHR' that result in changes of enzyme or receptor function may affect 17ß-estradiol clearance and metabolic activation of procarcinogens. I genotyped two populations for a total of 7 polymorphisms in the 'AHR, CYP1A2' and ' CYP1B1' genes to examine whether these gene polymorphisms modify estrogen metabolism (Project 1) and breast cancer susceptibility (Project 2). Data of our estrogen metabolism study (Project 1) suggest that the 'AHR ' 554 polymorphism is related to alterations in 17ß-estradiol metabolism. Results of our Quebec French Canadian breast cancer case-control study (Project 2) indicate that the 'AHR' 554, 'CYP1A2*1F, CYP1B1*3' and 'CYP1B1*4' polymorphisms may modify breast cancer susceptibility.
Author: United States. Public Health Service. Office of the Surgeon General Publisher: ISBN: Category : Government publications Languages : en Pages : 728
Book Description
This report considers the biological and behavioral mechanisms that may underlie the pathogenicity of tobacco smoke. Many Surgeon General's reports have considered research findings on mechanisms in assessing the biological plausibility of associations observed in epidemiologic studies. Mechanisms of disease are important because they may provide plausibility, which is one of the guideline criteria for assessing evidence on causation. This report specifically reviews the evidence on the potential mechanisms by which smoking causes diseases and considers whether a mechanism is likely to be operative in the production of human disease by tobacco smoke. This evidence is relevant to understanding how smoking causes disease, to identifying those who may be particularly susceptible, and to assessing the potential risks of tobacco products.
Author: Syed Sameer Aga Publisher: CRC Press ISBN: 1000688216 Category : Science Languages : en Pages : 1256
Book Description
Genetic polymorphisms are important determinants of phenotypic variations and may modulate the risk to or even cause various diseases including genetic disorders and multifactorial diseases. Genetic polymorphisms also serve as important genetic, population and evolutionary markers that allow the study of genetic and evolutionary aspects of individuals, populations and organisms and aid in tracing the evolutionary and parental lineages. Genetic polymorphisms in low penetrance genes are responsible for the alterations in the gene expression of critical signal transduction proteins and metabolic enzymes. Some of these polymorphisms are linked to increased susceptibility to various diseases especially cancers, cardiovascular diseases, immune disorders, neurological pathologies. This book collates the reviews on the roles played by polymorphisms in critical metabolic, signal transduction, cell cycle or DNA repair genes either directly or indirectly in the disease mechanisms. The focus is on various techniques for identifying the various Single Nucleotide Polymorphisms (SNPs). Polymorphism studies document the affect SNPs, and their expressions have upon the functionality of the enzymes, proteins. Key Features Describes the genetic polymorphism and its various types Discusses the role of genetic polymorphisms in modulating the risk of various human diseases Explores various molecular techniques used for detecting GPs Characterizes the role of SNPs in modulating the susceptibility of human diseases Provides a genetic basis for individual variations in response to therapeutics
Author: Paolo Vineis
Author: Paolo Vineis
Author: Aga Syed Sameer
Author: Amy Yu-Ling Liu
Author: Nigel Trevellyan Brockton
Author: Dr.A. Anuradha
Author: Menghua Tao
Author: Maria Shuk Mun Lam
Author: United States. Public Health Service. Office of the Surgeon General
Author: Syed Sameer Aga
Author: Harriet Wikman