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Genetic Screening and Counseling, An Issue of Obstetrics and Gynecology Clinics - E-Book

Genetic Screening and Counseling, An Issue of Obstetrics and Gynecology Clinics - E-Book

Anthony R. Gregg | Joe Leigh Simpson

(2010)

Additional Information

Book Details

Abstract

Genetic Screening and Counseling is reviewed in this issue of Obstetrics and Gynecology Clinics, guest edited by Drs. Anthony R. Gregg and Joe Leigh Simpson. Authorities in the field have come together to pen articles on Contemporary Genetics Counseling: New Frontiers and Challenges, Newborn Screening, SMA Carrier Screening, Fragile X, Ashkenazi Jewish Screening in the 21st Century, Thrombophilia in Obstetric Practice, Microarrays in the Practice of Obstetrics and Gynecology, Cancer Genetic Screening, and Cystic Fibrosis.

Table of Contents

Section Title Page Action Price
Front Cover Cover
Contributors v
Contents vii
Foreword xiii
Preface: Genetic Screening and Counseling xv
Chapter 1. Contemporary Genetic Counseling 1
CONNECTING WITH GENETIC COUNSELING RESOURCES 1
OBSTETRICIAN GYNECOLOGISTS AS PRIMARY GENETIC COUNSELORS 3
REFERRAL TO GENETIC SERVICES 3
GENETIC COUNSELING IN OBSTETRICS AND GYNECOLOGY 4
FUTURE POTENTIAL WITHIN PERSONALIZED MEDICINE 8
SUMMARY: THE OBSTETRIC GENETIC CONNECTION 8
REFERENCES 8
Chapter 2. Newborn Screening for Treatable Genetic Conditions: Past, Present and Future 11
THE ROLE OF THE OBSTETRICIAN/GYNECOLOGIST 11
HISTORY OF NBS 12
NBS TODAY 12
ETHICAL, SOCIAL AND FINANCIAL ISSUES 18
FUTURE DIRECTIONS 19
SUMMARY 20
REFERENCES 20
Chapter 3. Spinal Muscular Atrophy: Newborn and Carrier Screening 23
CLINICAL FEATURES 23
GENETICS 24
NEWBORN SCREENING 28
CARRIER TESTING 30
SUMMARY 33
ACKNOWLEDGMENTS 33
REFERENCES 33
Chapter 4. Ashkenazi Jewish Screening in the Twenty-first Century 37
HISTORY OF JEWISH POPULATIONS AND GENETIC EFFECTS 37
HISTORY OF JEWISH GENETIC SCREENING AND TESTING 38
THE JEWISH GENETIC DISORDERS 39
CURRENT RECOMMENDATIONS 43
SUMMARY 44
REFERENCES 44
Chapter 5. Carrier Screening for Cystic Fibrosis 47
DISEASE MANIFESTATIONS 47
MOLECULAR GENETICS AND PATHOPHYSIOLOGY 48
TYPES OF CFTR MUTATIONS: ‘‘SEVERE’’ VERSUS ‘‘MILD’’ ALLELES 49
EPIDEMIOLOGY 50
CLINICAL ASPECTS OF CARRIER TESTING 52
EXPANDED MUTATION SCREENING/FULL GENE SEQUENCING 54
HISTORY OF PRENATAL CARRIER TESTING FOR CF 55
MALE INFERTILITY AND CFTR MUTATIONS 56
INVASIVE PRENATAL TESTING FOR AT-RISK PREGNANCIES 56
PATIENT ACCEPTANCE/UPTAKE OF CARRIER TESTING 56
IMPACT OF CARRIER TESTING ON BIRTH INCIDENCE OF CF 57
SUMMARY 58
REFERENCES 58
Chapter 6. Prenatal Carrier Testing for Fragile X: Counseling Issues and Challenges 61
FRAGILE X–ASSOCIATED DISORDERS 61
FRAGILE X GENETICS 62
EXPANSION OF THE FMR1 TRIPLET REPEAT 62
RNA-MEDIATED PATHOGENESIS OF FRAGILE X–ASSOCIATED DISORDERS 63
FRAGILE X CARRIER SCREENING 64
MOLECULAR TESTING: SCREENING VERSUS DIAGNOSTIC ASSAYS 65
COUNSELING ISSUES AND CHALLENGES 65
FUTURE CONSIDERATIONS 68
SUMMARY 68
REFERENCES 68
Chapter 7. Applications of Array Comparative Genomic Hybridization in Obstetrics 71
A BRIEF HISTORY OF CYTOGENETICS 71
PRINCIPLES OF ARRAY-BASED COMPARATIVE GENOMIC HYBRIDIZATION 73
THE BASIS OF SINGLE NUCLEOTIDE POLYMORPHISM ARRAYS 75
USE OF ACGH FOR DISCOVERY AND DELINEATION OF GENOMIC DISORDERS 75
CLINICAL DIAGNOSTIC USE AND GENERAL BENEFITS OF ACGH 77
GENERAL LIMITATIONS OF ACGH 77
THE PRENATAL EXPERIENCE: SUCCESSES AND LIMITATIONS 78
THE ROLE OF ACGH IN THE CYTOGENETIC ANALYSIS OF PREGNANCY LOSS 80
GENETIC COUNSELING 81
SUMMARY 82
KEY POINTS 82
REFERENCES 83
Chapter 8. Screening, Testing, or Personalized Medicine: Where do Inherited Thrombophilias Fit Best? 87
THE SCREENING PARADIGM 87
GENETIC PRINCIPLES 89
THROMBOPHILIA BIOLOGY 91
PHENOTYPES AND CASE-CONTROL STUDIES 96
PREGNANCY, THROMBOPHILIA, AND COHORT STUDIES 96
FAMILY HISTORY AS A HELPFUL TOOL 97
PERSONALIZED MEDICINE 100
THE POSITION OF PROFESSIONAL ORGANIZATIONS 101
PUBLIC HEALTH SCREENING CRITERIA AND INHERITED THROMBOPHILIA 102
SUMMARY 102
ACKNOWLEDGMENTS 103
REFERENCES 103
Chapter 9. Hereditary Breast and Ovarian Cancer (HBOC): Clinical Features and Counseling for BRCA1 and BRCA2, Lynch Syndrome, Cowden Syndrome, and Li-Fraumeni Syndrome 109
THE GENES AND BIOLOGY 110
CLINICAL FEATURES 113
ASSESSING CANCER RISK 116
OTHER HEREDITARY CANCER SYNDROMES INVOLVING BREAST AND GYNECOLOGIC MALIGNANCIES 121
COUNSELING 123
RISK PERCEPTION AND OTHER COUNSELING ISSUES 128
SUMMARY 129
REFERENCES 130
Chapter 10. Erratum 135
Index 137