Appetite And Weight Flashcards
Obesity BMI value
30-39.9
Bio electrical impedance analysis?
Pass radio waves through body to calculate how much water, bone etc
Pro inflammatory cytokines?
TNF alpha and Il6
How many T2DM picked up at routine test?
50%
Obstructive sleep apnoea?
Snoring and awake disrupted sleep
Diabetes can cause in liver?
Non-alcoholic fatty liver disease, 90% of obese people have it
What can NAFLD lead to?
1/5 Non alcoholic steatohepatitis and then 1/5 cirrhosis and chronic liver disease
How does obesity cause cancer?
Increased insulin, oestrogen, adipocytokines, IGF-1 and reflux
What can obesity cause in reproductive system?
POCS, hypogonadism (low Testosterone conversion to oestrogen), adverse pregnancy outcomes
What can obesity cause?
Osteoarthritis, gout
Rare genes disorders causing obesity?
Prader willi and Bardet biedl- children keep eating don’t realise
Cholecystokinin/PPY?
- dont eat
Ghrelin
+ eating
Orlistat works by?
Binds and inhibits lipases, prevents hydrolysis of fat into absorbable free fatty acids/glycerol
So you excrete 1/3 of dietary fat
Orlistat adverse effects?
Flatulence, diarrhoea, oily faecal leakage,
Less absorption of fat soluble vitamins ADEK, supplements
Liraglutide?
GLP 1 receptor agonist Daily sc injection NICE say only if BMI over 35 Risk factors of cardiovascular disease Tier 3 MDT weight management service
Complication of roux en y gastric bypass?
Dumping syndrome: gastric emptying rapid
Post pranial hypoglycaemia
Micronutrient deficiencies: Vitamins calcium iron etc
Surgical treatment weight loss?
Weight loss 25-30%
Bariatric surgery?
Fail other options
BMI over 40
BMI 35 and other comorbidities
But 2014 expedite over 35 with recent t2d
What is pathophysiology of insulin resistance, obesity and metabolic syndrome?
Increased levels of free fatty acids results in gluconeogenesis and dyslipidaemia
Proinflammatory markers and obesity?
TNF alpha and IL6 from overloaded white adipose tissue leads to insulin resistance.
Decreased expression of GLUT 4 and tyrosine kinase activity of insulin receptor.
PYY signals to?
Not eat
Conditions to be given liraglutide?
Bmi over 35
Impaired glucose tolerance
Risk factors for cardiovascular disease
Semaglite injection is?
Once weekly
Physical activity accounts to what percent of total energy expenditure?
20-50
What are NHS guidelines for bariatric surgery?
Must have been obese for at least 5 years
Must engage in non surgical weight loss programme for 12-24 months first
Same as nice
Accelerator neurons to eat?
Neuropeptides y
And agouti related peptide
Brake neurons of hypothalamus are?
POMC neurons
What