Other Types of Diabetes (Non-T1/T2DM) Flashcards

1
Q

What is LADA?

A

Latent Autoimmune Diabetes of Adulthood - diabetes that appears as Type 2 but actually Type 1

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2
Q

What are included under Type 3 Diabetes?

A
  • Pancreatic diseases
  • Endocrine diseases
  • Drug-induced
  • Genetic diseases
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3
Q

What pancreatic diseases are there in T3DM?

A
  • Chronic or recurrent pancreatitis
  • Haemochromatosis
  • Cystic Fibrosis
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4
Q

What endocrine diseases are there in T3DM?

A
  • Cushing’s syndrome
  • Acromegaly
  • Phaechromocytoma
  • Glucagonoma
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5
Q

What genetic diseases are there in T3DM?

A
  • Cystic fibrosis
  • Myotonic dystrophy
  • Turner’s syndrome
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6
Q

What drug-induced examples are there in T3DM and are associated with other types of DM?

A
  • Glucocorticoids
  • Diuretics (thiazides)
  • B-blockers
  • Statins
  • Abnormalities of insulin and its receptor
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7
Q

What is MODY?

A

Maturity Onset Diabetes of the Young (essentially Type 2 diabetes in the young)

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8
Q

What are the classical signs of MODY?

A
  • Strong Family History
  • Associated Features (renal cysts etc)
  • Young Onset
  • GAD-negative
  • C-peptide positive
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9
Q

What is Type 4 Diabetes?

A

Gestational diabetes - Any degree of glucose intolerance arising or diagnosed during pregnancy

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10
Q

What are the 2 different phenotypes of MODY?

A

Glucokinase and Transcription factor (HNFalpha) defects

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11
Q

What happens in someone with Glucokinase mutation MODY?

A

Glucokinase is the first step in glucose metabolism, so acts as thr glucose sensor, so someone with glucokinase mutation has abnormal glucose sensing, so the set point it higher so have a high fasting glucose. Essentially is just like being normal but with high resting glucose

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12
Q

What test can be used to differentiate Glucokinase mutations and Transcription factor mutations?

A

Oral Glucose Tolerance results (Glucokinase is much higher)

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13
Q

True/False: Glucokinase MODY requires insulin treatment

A

False

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14
Q

How do the clinic features of Glucokinase and transcription factor MODY differ?

A
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15
Q

What is often used to treat transcription factor MODY?

A

Gliclazide and/or SU

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16
Q

What are the 2 main forms of Neonatal diabetes?

A

Transient (resolves) and Permanent (lifelong)

17
Q

What is the mutation in Neonatal Diabetes, and therefore what treatment is used?

A

Mutation was found to be in the potassium channel involved in secretion of insulin in the beta-cell. Basically don’t sense ATP so don’t depolarise. Sulphonylureas act on this faulty potassium channel so can be used to bypass the defect

18
Q

What kind of inheritance is MODY?

A

Autosomal dominant