Wilsons Disease Flashcards

1
Q

What type of genetic condition is Wilson’s disease? E.g. dominant/recessive

A

Autosomal recessive

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2
Q

What is Wilson’s disease?

A

excessive accumulation of copper in the body tissues, particularly in the liver.

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3
Q

What gene is affected in Wilson’s disease and which chromosome is it found on?

A

Wilson disease protein gene
Chromosome 13

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4
Q

What is the function of the Wilson disease protein?

A

It’s a copper transporting protein
Removes excesss copper from the body via the liver

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5
Q

How is copper excreted from the body?

A

In bile

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6
Q

When does Wilson’s disease usually present?

A

Teenagers or young adults

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7
Q

What does copper deposition in the liver lead to?

A

Chronic hepatitis
Can eventually lead to cirrhosis

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8
Q

Aside from the liver where does copper commonly deposit in Wilson’s disease? What symptoms does this lead to? (2)

A

Central nervous system
Neurological and psychological symptoms

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9
Q

What neurological symptoms can be seen in Wilson’s? (4)

A

Tremor
Dysarthria (speech difficulties)
Dystopia
If deposited in basal ganglia can cause Parkinsonism

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10
Q

What physiological symptoms are seen in Wilson’s? (4)

A

Abnormal behaviour
Depression
Cognitive impairment
Psychosis

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11
Q

How can you differentiate PD from Parkinsonism symptoms from Wilson’s disease?

A

Parkinsonism in Wilson’s is symmetrical

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12
Q

What is the main examination sign of Wilson’s?

A

Kayser fleischer rings
Mainly seen using slit lamp examination

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13
Q

What are the main features of Wilson’s? (6)

A

Psychiatric problems
Neurological problems
Chronic hepatitis
Haemolytic anaemia
Renal tubular damage
Osteopenia

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14
Q

What is the screening test for Wilson’s and what is a positive result?

A

Serum caeruloplasmin
Low serum caeruloplasmin seen in Wilson

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15
Q

What is caeruloplasmin?

A

Protein that carries copper in the blood

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16
Q

When can the screening test for Wilson’s be falsely normal or elevated?

A

Cancer or inflammatory conditions

17
Q

What is shown on a 24hour urine copper assay in Wilson’s?

A

High urinary copper

18
Q

What is used to make a definitive diagnosis of Wilson’s?

A

Liver biopsy to asses liver copper contents and liver disease

19
Q

What is seen on an mri scan in Wilson’s?

A

Characteristic double panda sign
Although this is non-specific

20
Q

What is the main treatment of Wilson’s? Give 2 forms of this

A

Copper chelation

Penicillamine
Trientine

21
Q

What is penicillamine?

A

Used for copper chelation in Wilson’s

22
Q

How are zinc salts used in Wilson’s?

A

Inhibit copper absorption in GI tract