Genetic Syndromes Flashcards

1
Q

Most common genetic disorder

A

Down Syndrome

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Maternal factors

A

Intrauterine infections (STORCH), alcohol-related birth defects, Fetal alcohol syndrome

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Fetal factors

A

Birth defects, inborn errors of metabolism, chromosomal abnormalities, CHARGE syndrome

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Tay-Sachs

A

Almost exclusively from people of Jewish heritage

Progressive disorder, results in early death

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Mucopolysaccharidosis

A

Error in gene code for enzyme that affects multiple body systems

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Mucopolysaccharidosis 1

A

Hurler syndrome:
Build-up of abnormal proteins in body; worsens with age
Gibbus = thoracolumbar kyphosis (hallmark feature)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Mucopolysaccharidosis 2

A

Hunter syndrome:

Less intense version of hurler syndrome

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Sanfillipo syndrome

A

Difficulty with metabolism; bony protrusions and deformities

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Krabbe disease

A

Hypertonicity, contractures; intractable seizures that further developmental delay; brain atrophy –> eventual death

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Lesch-Nyan disease

A

Born normally but with gross motor delay. Hallmark feature is self-mutilation; psychological problem but one that’s based physiologically

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

PKU

A

Tremors, seizures, and always involves MR

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Cytomegalovirus

A

CP, microcephaly, seizure disorders

Litter boxes not being changed can breed this virus

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Fetal alcohol syndrome

A

Most common fetal disorder; Can be prevented

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Fragile X

A

Congenital hip dislocation, mild MR

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Prader-Willi syndrome

A

Chromosome 15 inherited from father. Hyperphasia > eats a ton and gets obese

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Angelmen syndrome

A

Chromosome 15 inherited from mother. Mild MR, high steppage gait during ambulation

17
Q

Rett syndrome

A

Child develops normally until 6 y/o where they plateau. Rapid motor and language regression. Stereotypic hand-wringing and teeth grinding. Also apraxia and seizures

18
Q

Williams sydrome

A

Elfin facial features. Slow and abnormal growth. Hypotonic and grow into normal tone

19
Q

Genetic inheritance patterns

A

Autosomal, dominant, recessive, x-linked

20
Q

Autosomal inheritance

A

Only need to have gene from one parent to inherit disease

21
Q

Recessive inheritance

A

Need 2 copies of genes (one from each parent) to inherit disease

22
Q

Dominant inheritance

A

One gene from one parent needed to inherit disease

23
Q

X-linked

A

Involve the X chromosome, if it’s inherited as damaged or altered

24
Q

Down Syndrome

A

“Trisome 21”

When person has 3 instead of 2 copies of the 21st chromosome

25
Down syndrome symptoms
AAI, cognitive delay, hypotonia, small stature, single deep crease on the palm of each hand, gross motor development delays, poor language development
26
Dysmorphology
Malformation Dysplasia Deformation Syndrome
27
Malformation
Structural defect in organ or body part (cleft lip)
28
Dysplasia
Abnormal organization of cells in tissue (limb defect)
29
Deformation
Alteration in form or shape of normal body part (plagiocephaly)
30
Syndrome
Pattern of multiple malformations due to a single cause (Down Syndrome)
31
Lissencephaly
Absence of cerebral sulci
32
MELAS
``` Progressive neurodegenerative disorder Mitochondrial Encephalomyopathy Lactic Acidosis Stroke-like symptoms ```