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Abortus chromosom

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Abortus Chromosomal Abnormalities Denny Suwanto
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Page 1: Abortus chromosom

AbortusChromosomal Abnormalities

Denny Suwanto

Page 2: Abortus chromosom

Chromosome Abnormalities

• Numerical– Euploid---multiple of haploid number (N)– Aneuploid---trisomy or monosomy

• Structural

Milward,K. 2001. Genetics Disease

Page 3: Abortus chromosom

Nondisjunction Meiosis

Page 4: Abortus chromosom

Chromosome Numeric Anomalies

Trisomy 21

Aneuplody

Page 5: Abortus chromosom

Euplody

• 69,XXX• Dyandric• Dygynic

Page 6: Abortus chromosom

Structural Abnormalities

Page 7: Abortus chromosom

Chromosomal findings in early miscarriages

40% apparently normal

60% abnormal:Trisomy (47 chromosomes – one extra) 30%

45,X (45 chromosomes – one missing) 10%

Triploidy (69 chromosomes – three sets) 10%

Tetraploidy (92 chromosomes – four sets) 5%

Other chromosome anomalies 5%(e.g. structural anomalies)

National Genetics Education and Development centre, 2009

Page 8: Abortus chromosom

Effect of Chromosomal Abnormalities

• Preimplantation – Implantation Losses

• Simpson, J, Carson, S, Glob. libr. women's med.,(ISSN: 1756-2228) 2013; DOI 10.3843/GLOWM.10319


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