The Principles of Clinical Cytogenetics

Download The Principles of Clinical Cytogenetics PDF Online Free

Author :
Publisher : Springer
ISBN 13 :
Total Pages : 580 pages
Book Rating : 4.3/5 (91 download)

DOWNLOAD NOW!


Book Synopsis The Principles of Clinical Cytogenetics by : Steven L. Gersen

Download or read book The Principles of Clinical Cytogenetics written by Steven L. Gersen and published by Springer. This book was released on 1999-03-17 with total page 580 pages. Available in PDF, EPUB and Kindle. Book excerpt: Enlightening and accessible, The Principles of Clinical Cytogenetics constitutes an indispensable reference for today's physicians who depend on the cytogenetics laboratory for the diagnosis of their patients.

Clinical Precision Medicine

Download Clinical Precision Medicine PDF Online Free

Author :
Publisher : Academic Press
ISBN 13 : 0128204028
Total Pages : 114 pages
Book Rating : 4.1/5 (282 download)

DOWNLOAD NOW!


Book Synopsis Clinical Precision Medicine by : Judy S. Crabtree

Download or read book Clinical Precision Medicine written by Judy S. Crabtree and published by Academic Press. This book was released on 2019-11-15 with total page 114 pages. Available in PDF, EPUB and Kindle. Book excerpt: Clinical Precision Medicine: A Primer offers clinicians, researchers and students a practical, up-to-date resource on precision medicine, its evolving technologies, and pathways towards clinical implementation. Early chapters address the fundamentals of molecular biology and gene regulation as they relate to precision medicine, as well as the foundations of heredity and epigenetics. Oncology, an early adopter of precision approaches, is considered with its relationship to genetic variation in drug metabolism, along with tumor immunology and the impact of DNA variation in clinical care. Contributions by Stephanie Kramer, a Clinical Genetic Counselor, also provide current information on prenatal diagnostics and adult genetics that highlight the critical role of genetic counselors in the era of precision medicine. - Includes applied discussions of chromosomes and chromosomal abnormalities, molecular genetics, epigenetic regulation, heredity, clinical genetics, pharmacogenomics and immunogenomics - Features chapter contributions from leaders in the field - Consolidates fundamental concepts and current practices of precision medicine in one convenient resource

Medical Cytogenetics

Download Medical Cytogenetics PDF Online Free

Author :
Publisher : CRC Press
ISBN 13 : 1482292998
Total Pages : 703 pages
Book Rating : 4.4/5 (822 download)

DOWNLOAD NOW!


Book Synopsis Medical Cytogenetics by : Hon Fong L. Mark

Download or read book Medical Cytogenetics written by Hon Fong L. Mark and published by CRC Press. This book was released on 2000-04-11 with total page 703 pages. Available in PDF, EPUB and Kindle. Book excerpt: The only monograph on cytogenetics for the pathologist, this up-to-the-minute reference/text contains the most up-to-date research findings on many important topics in medical genetics-notably FISH (fluorescent in situ hybridation)-based molecular cytogenetic technologies and spectral karyotyping. An excellent resource for cytogeneticists prepar

Cytogenetic Abnormalities

Download Cytogenetic Abnormalities PDF Online Free

Author :
Publisher : John Wiley & Sons
ISBN 13 : 1118412567
Total Pages : 672 pages
Book Rating : 4.1/5 (184 download)

DOWNLOAD NOW!


Book Synopsis Cytogenetic Abnormalities by : Susan Mahler Zneimer

Download or read book Cytogenetic Abnormalities written by Susan Mahler Zneimer and published by John Wiley & Sons. This book was released on 2014-08-21 with total page 672 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cytogenetics is the study of the structure and function of chromosomes in relation to phenotypic expression.Chromosomal abnormalities underlie the development of a wide variety of diseases and disorders ranging from Down syndrome to cancer, and are of widespread interest in both basic and clinical research. Cytogenetic Abnormalities: Chromosomal, FISH, and Microarray-Based Clinical Reporting is a practical guide that describes cytogenetic abnormalities, their clinical implications and how best to report and communicate laboratory findings in research and clinical settings. The text first examines chromosomal, FISH, and microarray-based analyses in constitutional disorders. Using these same methodologies, the book's focus shifts to acquired abnormalities in cancers. Both sections provide illustrative examples of cytogenetic abnormalities and how to communicate these findings in standardized laboratory reports. Providing both a wealth of cytogenetic information, as well as practical guidance on how best to communicate findings to fellow research and medical professionals, Cytogenetic Abnormalities will be an essential resource for cytogeneticists, laboratory personnel, clinicians, research scientists, and students in the field. A guide to interpreting and reporting cytogenetic laboratory results involved in constitutional disorders and cancers Guides the reader on implementing the International System for Human Cytogenetic Nomenclature in written reports Provides information to allow scientists and medical professionals to fully understand and communicate cytogenetic abnormalities Describes a wide array of cytogenetic abnormalities observed in the laboratory Divided into user-friendly sections devoted to methodologies and implications of specific diseases

The AGT Cytogenetics Laboratory Manual

Download The AGT Cytogenetics Laboratory Manual PDF Online Free

Author :
Publisher : John Wiley & Sons
ISBN 13 : 1119061229
Total Pages : 1216 pages
Book Rating : 4.1/5 (19 download)

DOWNLOAD NOW!


Book Synopsis The AGT Cytogenetics Laboratory Manual by : Marilyn S. Arsham

Download or read book The AGT Cytogenetics Laboratory Manual written by Marilyn S. Arsham and published by John Wiley & Sons. This book was released on 2017-04-24 with total page 1216 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cytogenetics is the study of chromosome morphology, structure, pathology, function, and behavior. The field has evolved to embrace molecular cytogenetic changes, now termed cytogenomics. Cytogeneticists utilize an assortment of procedures to investigate the full complement of chromosomes and/or a targeted region within a specific chromosome in metaphase or interphase. Tools include routine analysis of G-banded chromosomes, specialized stains that address specific chromosomal structures, and molecular probes, such as fluorescence in situ hybridization (FISH) and chromosome microarray analysis, which employ a variety of methods to highlight a region as small as a single, specific genetic sequence under investigation. The AGT Cytogenetics Laboratory Manual, Fourth Edition offers a comprehensive description of the diagnostic tests offered by the clinical laboratory and explains the science behind them. One of the most valuable assets is its rich compilation of laboratory-tested protocols currently being used in leading laboratories, along with practical advice for nearly every area of interest to cytogeneticists. In addition to covering essential topics that have been the backbone of cytogenetics for over 60 years, such as the basic components of a cell, use of a microscope, human tissue processing for cytogenetic analysis (prenatal, constitutional, and neoplastic), laboratory safety, and the mechanisms behind chromosome rearrangement and aneuploidy, this edition introduces new and expanded chapters by experts in the field. Some of these new topics include a unique collection of chromosome heteromorphisms; clinical examples of genomic imprinting; an example-driven overview of chromosomal microarray; mathematics specifically geared for the cytogeneticist; usage of ISCN’s cytogenetic language to describe chromosome changes; tips for laboratory management; examples of laboratory information systems; a collection of internet and library resources; and a special chapter on animal chromosomes for the research and zoo cytogeneticist. The range of topics is thus broad yet comprehensive, offering the student a resource that teaches the procedures performed in the cytogenetics laboratory environment, and the laboratory professional with a peer-reviewed reference that explores the basis of each of these procedures. This makes it a useful resource for researchers, clinicians, and lab professionals, as well as students in a university or medical school setting.

Medical Genetics

Download Medical Genetics PDF Online Free

Author :
Publisher : McGraw Hill Professional
ISBN 13 : 0071819282
Total Pages : 385 pages
Book Rating : 4.0/5 (718 download)

DOWNLOAD NOW!


Book Synopsis Medical Genetics by : G. Bradley Schaefer

Download or read book Medical Genetics written by G. Bradley Schaefer and published by McGraw Hill Professional. This book was released on 2013-11-22 with total page 385 pages. Available in PDF, EPUB and Kindle. Book excerpt: A complete introductory text on how to integrate basic genetic principles into the practice of clinical medicine Medical Genetics is the first text to focus on the everyday application of genetic assessment and its diagnostic, therapeutic, and preventive implications in clinical practice. It is intended to be a text that you can use throughout medical school and refer back to when questions arise during residency and, eventually, practice. Medical Genetics is written as a narrative where each chapter builds upon the foundation laid by previous ones. Chapters can also be used as stand-alone learning aids for specific topics. Taken as a whole, this timely book delivers a complete overview of genetics in medicine. You will find in-depth, expert coverage of such key topics as: The structure and function of genes Cytogenetics Mendelian inheritance Mutations Genetic testing and screening Genetic therapies Disorders of organelles Key genetic diseases, disorders, and syndromes Each chapter of Medical Genetics is logically organized into three sections: Background and Systems – Includes the basic genetic principles needed to understand the medical application Medical Genetics – Contains all the pertinent information necessary to build a strong knowledge base for being successful on every step of the USMLE Case Study Application – Incorporates case study examples to illustrate how basic principles apply to real-world patent care Today, with every component of health care delivery requiring a working knowledge of core genetic principles, Medical Genetics is a true must-read for every clinician.

Cancer Cytogenetics

Download Cancer Cytogenetics PDF Online Free

Author :
Publisher : John Wiley & Sons
ISBN 13 : 1118795512
Total Pages : 645 pages
Book Rating : 4.1/5 (187 download)

DOWNLOAD NOW!


Book Synopsis Cancer Cytogenetics by : Sverre Heim

Download or read book Cancer Cytogenetics written by Sverre Heim and published by John Wiley & Sons. This book was released on 2015-06-29 with total page 645 pages. Available in PDF, EPUB and Kindle. Book excerpt: The first three editions of this acclaimed book presented a much-needed conceptual synthesis of this rapidly moving field. Now, Cancer Cytogenetics, Fourth Edition, offers a comprehensive, expanded, and up-to-date review of recent dramatic advances in this area, incorporating a vast amount of new data from the latest basic and clinical investigations. New contributors reflecting broader international authorship and even greater expertise Greater emphasis throughout on the clinical importance and application of information about cytogenetic and molecular aberrations Includes a complete coverage of chromosome aberrations in cancer based on an assessment of the 60,000 neoplasms cytogenetically investigated to date Now produced in full color for enhanced clarity Covers how molecular genetic data (PCR-based and sequencing information) are collated with the cytogenetic data where pertinent Discusses how molecular cytogenetic data (based on studies using FISH, CGH, SNP, etc) are fused with karyotyping data to enable an as comprehensive understanding of cancer cytogenetics as is currently possible

The Principles of Clinical Cytogenetics

Download The Principles of Clinical Cytogenetics PDF Online Free

Author :
Publisher : Springer Science & Business Media
ISBN 13 : 1592598331
Total Pages : 589 pages
Book Rating : 4.5/5 (925 download)

DOWNLOAD NOW!


Book Synopsis The Principles of Clinical Cytogenetics by : Steven L. Gersen

Download or read book The Principles of Clinical Cytogenetics written by Steven L. Gersen and published by Springer Science & Business Media. This book was released on 2008-08-17 with total page 589 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the summer of 1989, one of us (SLG), along with his mentor, Dorothy Warb- ton, attended the Tenth International Workshop on Human Gene Mapping. The me- ing was held at Yale University in celebration of the first such event, which also took place there. This meeting was not open to the general public; one had to have contributed to mapping a gene to be permitted to attend. The posters, of course, were therefore all related to gene mapping, and many were covered with pretty, colorful pictures of a novel, fluorescent application of an old technology, in situ hybridization. Walking through the room, Dorothy remarked that, because of this new FISH technique, ch- mosomes, which had become yesterday’s news, were once again “back in style. ” Approximately three years later, a commercial genetics company launched a FISH assay for prenatal ploidy detection. A substantial number of cytogeneticists across the country reacted with a combination of outrage and panic. Many were concerned that physicians would be quick to adopt this newfangled upstart test and put us all on the unemployment line. They did not at the time realize what Dorothy instinctively already knew—that FISH would not spell the doom of the cytogenetics laboratory, but it would, rather, take it to new heights.

Cytogenetic Laboratory Management

Download Cytogenetic Laboratory Management PDF Online Free

Author :
Publisher : John Wiley & Sons
ISBN 13 : 1119069742
Total Pages : 844 pages
Book Rating : 4.1/5 (19 download)

DOWNLOAD NOW!


Book Synopsis Cytogenetic Laboratory Management by : Susan Mahler Zneimer

Download or read book Cytogenetic Laboratory Management written by Susan Mahler Zneimer and published by John Wiley & Sons. This book was released on 2016-11-21 with total page 844 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cytogenetic Laboratory Management Cytogenetic Laboratory Management Chromosomal, FISH and Microarray-Based Best Practices and Procedures Cytogenetic Laboratory Management: Chromosomal, FISH and Microarray-Based Best Practices and Procedures is a practical guide that describes how to develop and implement best practice processes and procedures in the genetic laboratory setting. The text first describes good laboratory practices, including quality management, design control of tests, and FDA guidelines for laboratory-developed tests, and preclinical validation study designs. The second focus of the book is on best practices for staffing and training, including cost of testing, staffing requirements, process improvement using Six Sigma techniques, training and competency guidelines, and complete training programs for cytogenetic and molecular genetic technologists. The third part of the text provides stepwise standard operating procedures for chromosomal, FISH and microarray-based tests, including preanalytic, analytic, and postanalytic steps in testing, which are divided into categories by specimen type and test type. All three sections of the book include example worksheets, procedures, and other illustrative examples that can be downloaded from the Wiley website to be used directly without having to develop prototypes in your laboratory. Providing a wealth of information on both laboratory management and molecular and cytogenetic testing, Cytogenetic Laboratory Management will be an essential tool for laboratorians worldwide in the field of laboratory testing and genetic testing in particular. This book gives the essentials of: Developing and implementing good quality management programs in laboratories Understanding design control of tests and preclinical validation studies and reports FDA guidelines for laboratory-developed tests Use of reagents, instruments, and equipment Cost of testing assessment and process improvement using Six Sigma methodology Staffing training and competency objectives Complete training programs for molecular and cytogenetic technologists Standard operating procedures for all components of chromosomal analysis, FISH, and microarray testing of different specimen types This volume is a companion to Cytogenetic Abnormalities: Chromosomal, FISH and Microarray-Based Clinical Reporting. The combined volumes give an expansive approach to performing, reporting, and interpreting cytogenetic laboratory testing and the necessary management practices, staff and testing requirements.

Diagnostic Cytogenetics

Download Diagnostic Cytogenetics PDF Online Free

Author :
Publisher : Springer Science & Business Media
ISBN 13 : 3642599184
Total Pages : 464 pages
Book Rating : 4.6/5 (425 download)

DOWNLOAD NOW!


Book Synopsis Diagnostic Cytogenetics by : Rolf-Dieter Wegner

Download or read book Diagnostic Cytogenetics written by Rolf-Dieter Wegner and published by Springer Science & Business Media. This book was released on 2013-11-11 with total page 464 pages. Available in PDF, EPUB and Kindle. Book excerpt: Following a section on tissue culture, chromosome staining and basic information about karyotyping, this text presents nomenclature and quality standards, as well as protocols of relevance to comprehensive cytogenetic diagnostics.

Cytogenomics

Download Cytogenomics PDF Online Free

Author :
Publisher : Academic Press
ISBN 13 : 0128235802
Total Pages : 430 pages
Book Rating : 4.1/5 (282 download)

DOWNLOAD NOW!


Book Synopsis Cytogenomics by : Thomas Liehr

Download or read book Cytogenomics written by Thomas Liehr and published by Academic Press. This book was released on 2021-05-25 with total page 430 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cytogenomics demonstrates that chromosomes are crucial in understanding the human genome and that new high-throughput approaches are central to advancing cytogenetics in the 21st century. After an introduction to (molecular) cytogenetics, being the basic of all cytogenomic research, this book highlights the strengths and newfound advantages of cytogenomic research methods and technologies, enabling researchers to jump-start their own projects and more effectively gather and interpret chromosomal data. Methods discussed include banding and molecular cytogenetics, molecular combing, molecular karyotyping, next-generation sequencing, epigenetic study approaches, optical mapping/karyomapping, and CRISPR-cas9 applications for cytogenomics. The book's second half demonstrates recent applications of cytogenomic techniques, such as characterizing 3D chromosome structure across different tissue types and insights into multilayer organization of chromosomes, role of repetitive elements and noncoding RNAs in human genome, studies in topologically associated domains, interchromosomal interactions, and chromoanagenesis. This book is an important reference source for researchers, students, basic and translational scientists, and clinicians in the areas of human genetics, genomics, reproductive medicine, gynecology, obstetrics, internal medicine, oncology, bioinformatics, medical genetics, and prenatal testing, as well as genetic counselors, clinical laboratory geneticists, bioethicists, and fertility specialists. - Offers applied approaches empowering a new generation of cytogenomic research using a balanced combination of classical and advanced technologies - Provides a framework for interpreting chromosome structure and how this affects the functioning of the genome in health and disease - Features chapter contributions from international leaders in the field

Molecular Cytogenetics

Download Molecular Cytogenetics PDF Online Free

Author :
Publisher : Springer Science & Business Media
ISBN 13 : 1592593003
Total Pages : 409 pages
Book Rating : 4.5/5 (925 download)

DOWNLOAD NOW!


Book Synopsis Molecular Cytogenetics by : Yao-Shan Fan

Download or read book Molecular Cytogenetics written by Yao-Shan Fan and published by Springer Science & Business Media. This book was released on 2008-02-05 with total page 409 pages. Available in PDF, EPUB and Kindle. Book excerpt: The new techniques of molecular cytogenetics, mainly fluorescence in situ hybridization (FISH) of DNA probes to metaphase chromosomes or interphase nuclei, have been developed in the past two decades. Many FISH techniques have been implemented for diagnostic services, whereas some others are mainly used for investigational purposes. Several hundreds of FISH probes and hybridization kits are now commercially available, and the list is growing rapidly. FISH has been widely used as a powerful diagnostic tool in many areas of medicine including pediatrics, medical genetics, maternal–fetal medicine, reproductive medicine, pathology, hematology, and oncology. Frequently, a physician may be puzzled by the variety of FISH techniques and wonder what test to order. It is not uncommon that a sample is referred to a laboratory for FISH without indicating a specific test. On the other hand, a cytogeneticist or a technologist in a laboratory needs, from case to case, to determine which procedure to perform and which probe to use for an informative result. To obtain the best results, one must use the right DNA probes and have reliable protocols and measures of quality assurance in place. Also, one must have sufficient knowledge in both traditional and molecular cytogenetics, as well as the particular areas of medicine for which the test is used in order to appropriately interpret the FISH results, and to correlate them with clinical diagnosis, treatment, and prognosis.

Human Cytogenetics: General cytogenetics

Download Human Cytogenetics: General cytogenetics PDF Online Free

Author :
Publisher : New York : Academic Press
ISBN 13 :
Total Pages : 442 pages
Book Rating : 4.3/5 (91 download)

DOWNLOAD NOW!


Book Synopsis Human Cytogenetics: General cytogenetics by : John Laurence Hamerton

Download or read book Human Cytogenetics: General cytogenetics written by John Laurence Hamerton and published by New York : Academic Press. This book was released on 1971 with total page 442 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Small Supernumerary Marker Chromosomes (sSMC)

Download Small Supernumerary Marker Chromosomes (sSMC) PDF Online Free

Author :
Publisher : Springer Science & Business Media
ISBN 13 : 3642207669
Total Pages : 233 pages
Book Rating : 4.6/5 (422 download)

DOWNLOAD NOW!


Book Synopsis Small Supernumerary Marker Chromosomes (sSMC) by : Thomas Liehr

Download or read book Small Supernumerary Marker Chromosomes (sSMC) written by Thomas Liehr and published by Springer Science & Business Media. This book was released on 2011-11-03 with total page 233 pages. Available in PDF, EPUB and Kindle. Book excerpt: Human beings normally have a total of 46 chromosomes, with each chromosome present twice, apart from the X and Y chromosomes in males. Some three million people worldwide, however, have 47 chromosomes: they have a small supernumerary marker chromosome (sSMC) in addition to the 46 normal ones. This sSMC can originate from any one of the 24 human chromosomes and can have different shapes. Approximately one third of sSMC carriers show clinical symptoms, while the remaining two thirds manifest no phenotypic effects. This guide represents the first book ever published on this topic. It presents the latest research results on sSMC and current knowledge about the genotype-phenotype correlation. The focus is on genetic diagnostics as well as on prenatal and fertility-related genetic counseling. A unique feature is that research meets practice: numerous patient reports complement the clinical aspects and depict the experiences of families living with a family member with an sSMC.

Clinical Cytogenetics, An Issue of Clinics in Laboratory Medicine

Download Clinical Cytogenetics, An Issue of Clinics in Laboratory Medicine PDF Online Free

Author :
Publisher : Elsevier Health Sciences
ISBN 13 : 1455709352
Total Pages : 385 pages
Book Rating : 4.4/5 (557 download)

DOWNLOAD NOW!


Book Synopsis Clinical Cytogenetics, An Issue of Clinics in Laboratory Medicine by : Caroline Astbury

Download or read book Clinical Cytogenetics, An Issue of Clinics in Laboratory Medicine written by Caroline Astbury and published by Elsevier Health Sciences. This book was released on 2011-12-28 with total page 385 pages. Available in PDF, EPUB and Kindle. Book excerpt: This issue of Clinics in Laboratory Medicine, Guest Edited by Caroline Astbury, PhD, FACMG, will focus on Cytogenetics, with topics including: Chronic lymphocytic leukemia; Acute lymphocytic leukemia; Acute myelogenous leukemia; Chronic myelogenous leukemia; Plasma cell myeloma; Lymphomas; Solid tumors; Myelodysplastic syndromes; SNP arrays in clinical practice; Prenatal arrays; FISH (including Paraffin-embedded (PET) FISH); New and old microdeletion and microduplication syndromes; Sex chromosome and sex chromosome abnormalities; Autosomal aneuploidy; Microarray-CGH interpretation and Genomic Integrity; Structural chromosome rearrangements and complex chromosome rearrangements; and UPD/imprinting.

Molecular Genetic Pathology

Download Molecular Genetic Pathology PDF Online Free

Author :
Publisher : Springer
ISBN 13 : 9781461447993
Total Pages : 1136 pages
Book Rating : 4.4/5 (479 download)

DOWNLOAD NOW!


Book Synopsis Molecular Genetic Pathology by : Liang Cheng

Download or read book Molecular Genetic Pathology written by Liang Cheng and published by Springer. This book was released on 2013-03-05 with total page 1136 pages. Available in PDF, EPUB and Kindle. Book excerpt: Molecular Genetic Pathology, Second Edition presents up-to-date material containing fundamental information relevant to the clinical practice of molecular genetic pathology. Fully updated in each area and expanded to include identification of new infectious agents (H1N1), new diagnostic biomarkers and biomarkers for targeted cancer therapy. This edition is also expanded to include the many new technologies that have become available in the past few years such as microarray (AmpliChip) and high throughput deep sequencing, which will certainly change the clinical practice of molecular genetic pathology. Part I examines the clinical aspects of molecular biology and technology, genomics. Poharmacogenomics and proteomics, while Part II covers the clinically relevant information of medical genetics, hematology, transfusion medicine, oncology, and forensic pathology. Supplemented with many useful figures and presented in a helpful bullet-point format, Molecular Genetic Pathology, Second Edition provides a unique reference for practicing pathologists, oncologists, internists, and medical genetisists. Furthermore, a book with concise overview of the field and highlights of clinical applications will certainly help those trainees, including pathology residents, genetics residents, molecular pathology fellows, internists, hematology/oncology fellows, and medical technologists in preparing for their board examination/certification.

Uniparental Disomy (UPD) in Clinical Genetics

Download Uniparental Disomy (UPD) in Clinical Genetics PDF Online Free

Author :
Publisher : Springer
ISBN 13 : 3642552889
Total Pages : 201 pages
Book Rating : 4.6/5 (425 download)

DOWNLOAD NOW!


Book Synopsis Uniparental Disomy (UPD) in Clinical Genetics by : Thomas Liehr

Download or read book Uniparental Disomy (UPD) in Clinical Genetics written by Thomas Liehr and published by Springer. This book was released on 2014-06-26 with total page 201 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book focus on genetic diagnostics for Uniparental Disomy (UPD), a chromosomal disorder defined by the exceptional presence of a chromosome pair derived from only one parent, which leads to a group of rare diseases in humans. First the molecular and cytogenetic background of UPD is described in detail; subsequently, all available information of the various chromosomal origins and the latest findings on genotype-phenotype correlations and clinical consequences are discussed. Numerous personal reports from families with a child suffering from a UPD-induced syndrome serve to complement the scientific and clinical aspects. Their experiences with genetic counseling and living with a family member affected by this chromosomal aberration present a vivid picture of what UPD means for its victims.