Obesity/ some of Starvation Flashcards
(35 cards)
how do you calculate BMI
weight(kg)/ height (m2)
value of BMI that is considered obese
> /= 30kg/m2
value of BMI that is considered overweight
25-29.9kg/m2
metabolic effects of obesity
dyslipidemia, glucose intolerance, insulin resistance
those who are obese have an increased risk of…
atherosclerosis, cardiovascular disease, stroke, diabetes, cancer
two kinds of body fat
visceral (worse) and subcutaneous
visceral and abdominal fat are released into _______, then taken up by ______ and contribute to _______ in the blood
portal vein, liver, higher VLDL
subcutaneous fat enters _______ and is used by ______ before reaching the liver
general circulation, muscle
more weight below the waist indicates a higher amount of what fat
subcutaneous (pear shaped figure)
more weight above the waist indicates a higher amount of what fat
visceral (apple shaped figure)
conditions associated with more weight above the waist
syndrome X or metabolic syndrome
percentage of TAGs in chylomicrons
85%
what happens to body’s TAG content as BMI increases from 20 to 30
it doubles
what happens to adipocytes with modest weight gain
hypertrophy
what happens to adipocytes with excessive weight gain
hypertrophy and hyperplasia
molecules and hormones that adipocytes produce
free fatty acid, adiponectin (insulin resistance), cytokines (inflammation), and leptin (appetite control/weight gain)
factors that regulate body weight
genetic and environment
mutation in what gene can produce hyperphagia and massive obesity
leptin gene and its receptors
hyperphagia is excessive hunger/increased appetite
what secretes ghrelin and cholecystokinin(CCK)
ghrelin released by stomach and CCK by small intestine
tissues affected by obesity
liver, muscle, adipose
clustering of atherosclerotic and cardiovascular disease
metabolic syndrome
risk factors of metabolic syndrome
visceral adiposity (obesity), insulin resistance, low levels of HDLs, systemic proinflammatory state
indicators of metabolic syndrome
elevated fasting blood glucose, elevated waist circumference, elevated TAGs, reduced HDL cholesterol, elevated blood pressure
strong correlation between weight gain and …
insulin resistance