Diabetes Flashcards
(42 cards)
What is the definition of diabetes?
Disorder of the metabolism causing excessive thirst and the production of large amounts of urine
Metabolic disease characterised by hyperglycaemia resulting from defect in insulin secretion, production or both
5 types of diabetes?
Type 1 Type 2 MODY Gestational Other - caused by steroids
What is type 1?
Auto immune - Pancreatic beta cells destruction
Insulin dependant
What is type 1 characterised by?
Presence of anti GAD / anti islet cell antibodies
When is a person thought to have type 2 diabetes?
When they don’t have the 1, monogenic diabetes or other medical conditions or Tx suggestive of secondary diabetes
What is MODY?
Monogenic Diabetes (genetic)
Secondary causes of diabetes?
Drugs
Pancreatic pathology
Endocrine causes
Who discovered insulin in the treatment of diabetes and when?
Banting Best MacLeod Collio 1922
How did they figure out it helped in diabetes?
Dog pancreas removed and treated with insulin injections
Who was the first person to receive insulin to treat their diabetes?
Leonard Thompson
When is type one usually diagnosed?
Childhood
What do people wit type 1 have high levels of in their blood?
Anti islet cell antibodies
What is an insulin pump?
It administers short acting insulin through out the day
The rate can vary depending on the demand
Amount of insulin depends on carbohydrate intake
What is a continuous glucose monitor?
Takes subcutaneous measurements and sends them to the pump
What does the patient still have to decide on if they have a continuous glucose monitor?
How much insulin to take
When is type 2 usually diagnosed?
> 40
What is type 2?
Insulin resistant
What is the underlying physiology of type 2?
Insulin resistance
Beta cell dysfunction
What happens if you are insulin resistant?
Problem with downstream signalling from insulin receptors so the glucose can’t get into the cells and the blood sugar rises
What do people have before developing type 2?
Impaired glucose tolerance
What are the causes of insulin resistance?
Ectopic fat accumulation
Increase inflammatory mediators
Reduction in insulin
What is insulin resistance associated with?
Intra abdominal obesity Medication Smoking Genetics Inactivity Fetal malnutrition Endothelial disease Polycystic ovaries Ageing Hypertension
How are you tested for diabetes? (type 2)
Fasting glucose level >7
Given a high sugar drink and tested 2 hours later and if level >11.1 = diabetes
Treatment for type 2?
Life style changed - can stop need for meds Oral mono therapy Oral combination Injectable and oral therapy Drugs - metformin / sulphonylurea