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Path Nutrition
KYCOM Block 12
75
Pathology
Graduate
11/23/2013

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Term
9 causes of malnutrition
Definition
poverty
ignorance: switching baby to rice milk
chronic alcoholism: not buying groceries, malabsorption
self imposed: anorexia, dieting
malabsorption: GI disease, acquired, inherited
drugs
total parentral nutrition
Term
define primary malnutrition
Definition
inasequate diet intake
Term
define secondary malnutrition
Definition
cannot be absorbed, utilized, stored, or used faster than consumed
Term
what are the three most common causes of secondary malnutrition
Definition
GI disease
chronic wasting disease
acute critical illness
Term
what causes protein energy malnutrition, what is the main sign to start looking at protein
Definition
inadequate protein or calorie intake
weight <80% normal
Term
define marasmus
Definition
calorie deficiency > protein deficiency
Term
what organ system is affected by marasmus, why does it cause symptoms
Definition
somatic organs
they are degraded for AA and fat
Term
signs of marasmus
Definition
reduced midarm circumference
loss of muscle and SC fat
growth retardation except in head because body spares brain
weight 60% normal
anemia
vitamin deficiency
immune deficiency mostly T cell
normal serum albumin
Term
define kwashikor
Definition
protein deficiency > calorie deficiency
Term
causes of kwashikor (4)
Definition
classic; baby weaked too early and fed carb based diet (rice milk)
GI malbsorption
burns
nephrotic syndrome
Term
signs of kwashikor
Definition
reduced serum albumin causes generalized dependant edema

hepatomeagly and fatty liver

weight 60-80% normal

skin lesions: altered pigment and peeling (flaky paint)

hair color and texture changes

apathy, appetite loss

immune deficiency less prominent than marasmus

small bowel villous atrophy causes diccaridase deficnecy (lactose intolerance) and malabsorption
Term
why is secondary PEM seen in
Definition
chronically ill or hospitalized (cancer pt)

if seen in healthy suspect anorexia/bulemia
Term
define cachexia
Definition
wasting in cancer pt
Term
what is the cause of cachexia
Definition
TNF acts as cachexin and stimulates acute phase response and uses up SC fat and reduces appetite

proteolysis inducing factor acts as cachexin and reduces appetite
Term
2 eating disorders, define each
Definition
anorexia: self induced starvation
bulemia: binge eating followed by vomiting/laxatives
Term
what is the main difference physiologically between anorexia and bulemia
Definition
bulemia has a better prognosis
weight and gonadotropin levels remain near normal
Term
signs or anorexia
Definition
amenorrhea
decreased T3/4: cold intolerance, bradycardia, constipation

laungo hair

yellow skin due to excess carotene

loss of bone density due to low estrogen
Term
why is amenorrhea important sign of anorexia
Definition
it happens in most pt
anorexia should always be in amenorrhea ddx
Term
signs of bulemia
Definition
50% get amenorrhea
electrolyte imbalance
pulmonary aspiration
esophageal and stomach rupture
Term
complications of eating disorders
Definition
anemia
lymphopenia
hypoalbumina
hypokalemia: cardiac arrhythmia and sudden death
Term
what are the fat and water soluble vitamins
Definition
fat: ADEK
water: BC
Term
what is the most common cause of fat soluble vitamin deficiency
Definition
malabsorption in intestinal disease
Term
sources of vitamin A
Definition
animal derived: liver, egg, milk
polyvitamins/B-carotene: yellow or leafy green veggies
Term
what are forms of vitamin A
Definition
retinol, retinal, retinoic A, retinoids
Term
which form of vitamin A isnt really one, why
Definition
retinoids: structurally related, no vitamin A activity
Term
where is vitamin A stored, how long is the reserve
Definition
90% in liver
lasts 6 mo
Term
explain absorption and distribution of vitamin A
Definition
absorbed in villi and into chylomicron which goes to APO E recepto on liver

binds retinol binding protein in retinyl ester form for transport

oxidized at tissue to retinoic acid
Term
functions of vitamin A
Definition
part of rhodopsin in rods and idopsins in cones

epithelial differentiation

enhance immunity esp in measles and diarrhea diseases
Term
risk factors for vitamin A deficiency
Definition
infants: poor absorption
kids: stores depeleted in infection
malabsorption syndromes: celiac disease example
bariatric surgery
use of mineral oil laxatives
Term
signs of vitamin A deficiency
Definition
night blindnes
squamous metaplasia esp mucosa (and its complications like blindness)
immune deficiency
Term
what are the complications of squamous metaplasia
Definition
xeropthalmia: dry eye due to replacement of lacrimal epithelium with kertinized

biot spots: keritanized plaqye due to epithelial replacement

keritomalacia: softening and destruction of cornea due to keratin

blindness

increased respiratory infection and UTI and renal stones
Term
signs of acute vitamin A toxicity
Definition
headache
dizzy
vomiting
stupor
blurred vision
teratogen
Term
signs of chronic vitamin A toxicity
Definition
weight loss due to anorexia, vomiting, nausea

bone and joint pain due to retinoic acid stimulating osteoclasts

teratogen
Term
signs of vitamin D deficiency
Definition
rickets in kids
osteomalacia in adults
Term
signs of vitamin E deficiency
Definition
spinocerebellar degeneration
Term
signs of vitamin K deficiency
Definition
bleeding disorders
Term
signs of B1 deficiency, aka
Definition
thiamine

dey and wet beriberi, werinke and korsakoff
Term
signs of B2 deficiency, aka
Definition
riboflavin

cheilosis, stomatitis, glossitis, dermatitis, corneal vascularization
Term
signs of niacin deficiency
Definition
pellatra- dermatitis, dementia, diarrhea
Term
signs of B6 deficiency, aka
Definition
pyridoxine

cheilosis, glossitis, dermatitis, peripherial neropathy
Term
signs of B12 deficiency
Definition
combined system disease - anemia, posterolateral spinal cord degeneration
Term
vitamin C aka
Definition
ascorbic acid
Term
sources of vitamin C
Definition
milk and animal products
fruit and veggies
Term
functions of vitamin C
Definition
hydroxylation of procollagen: stabilizes helix and cross links in collage (esp in vessels)

antioxidant: direct and assist in vitamin E production
Term
risk factors for vitamin C deficiency
Definition
food fads
dialysis patients
anorexia
elderly
alcoholic
Term
signs of scurvey
Definition
bleeding and petechiae due to poor vessel support
impaired wound healing
decreased periosteum in joints
Term
signs of vitamin C toxicity
Definition
water soluble and mostly excreted in urine so uncommon

uricosuria: high uric acid
increased Fe absorption
Term
signs of folate deficiency
Definition
anemia
neural tube defects
Term
signs of pantotenic acid deficiency
Definition
none
Term
signs of biotin deficiency
Definition
none
Term
4 ways we define or qualify obesity
Definition
adipose levels high enough to cause adverse health effects

BMI (weight/height) >30 kg/m2

skin fold measurements

body circumferences / hip to waist ratio
Term
7 peripherial or afferent regulators of energy
Definition
leptin
adiponectin
cytokines
chemokines
stored hormones
gherlin
peptide Yy
Term
5 energy regulators adipose releases
Definition
leptin
adiponectin
cytokines
chemokines
stored hormones
Term
what type of molecule is leptin
Definition
cytokine
Term
function of leptin
Definition
reduced food intake and increased energy expendurature
Term
function of adiponectin, cytokines, chemokines, and stored hormone in adipose
Definition
regulate metabolism, nutrition, and inflammation
Term
where is gherlin made
Definition
stomach
Term
explain the changes in gherlin levels
Definition
rises before meals
falls 1-2 hours later
Term
function of gherlin
Definition
stimulate appetite
Term
where is peptide YY made, what sitmulates
Definition
endocrine cells of ileum and colon in response to food
Term
function of peptide YY
Definition
satiety signal
Term
what is the efferent regulator of energy blanace
Definition
hypothalamus arcuate nucleus
Term
what are the 4 neuron regulator of energy paths of the arcuate nucleus, what do they do
Definition
POMC and CART neurons cause energy expendature and weight loss

NPT and AhRP neurons cause food intake and weight gain
Term
define: POMC, CART, NPY, AhRP
Definition
pro-opiomelanocortin neuron
cocaine and aphmetamine regulated transport neuron
neuropeptide Y neuron
aqouti-released peptide neuron
Term
what are the three causes of obesity
Definition
leptin pathway mutation
total adipocyte number is determine as kid so more build up means more obesity
decreased gherlin degration
Term
what are 4 leptin mutations causing obesity
Definition
melanocortin receptor 4 (MCR4) mutation
leptin recptor resistance / high leptin blood levels
Term
what is an exam finding that can determine that someone is more at risk for obesity complications
Definition
central / visceral obesity
Term
11 complications of obesity
Definition
hypertriglyceridemia
cancer
insulin resistance
hyperinsulinemia (diabetes II)
metabolic syndrome
non-alcoholic steatohepatitis
cholelithiasis
hypoventilation syndrome w/ hypersomnolence
osteoarthritis
elevated markers of inflammation (CRP)
Term
when someone has obesity and gets hyperTG what can this cause
Definition
low HDL and coronary artery disease
Term
what are the common obesity associated cancers in men
Definition
esophageal
thyroid
colon
kidney
Term
what are the common obesity associated cancers in women
Definition
esophageal
endometrial
gallbladder
idney
Term
signs of metaoblic syndrome
Definition
visceral obesity
abnormal glucose and lipid metabolism
HTN
pro-inflammatory state
Term
what is non-alcoholic steatohepatitis, what are complications
Definition
fatty liver disease
fibrosis and chirrosis
Term
why do people with obesity get cholelithiasis
Definition
increased cholesterol causes changes in biliary excretion
Term
signs of hypoventilation syndrome w/ hypersomnolence
Definition
apenic pause
polycythemia
right sided heart failure
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