Obesity and T2D metabolism Flashcards

1
Q

what is diabetes

A

high blood glucose

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2
Q

what causes diabetes (2)

A

not producing insulin or use insulin effectively

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3
Q

what makes insulin

A

pancreas

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4
Q

what does insulin do

A

control blood glucose

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5
Q

what does diabetes controls (5)

A

blindness, kidney failure, heart attack, stroke, lower limb amputation

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6
Q

when does T1D normally get diagnosed

A

childhood

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7
Q

what type of disease is T1D

A

autoimmune

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8
Q

what % is T2D

A

90%

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9
Q

what is gestational diabetes

A

diabetes in pregnanacy

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10
Q

what is diabetes not diagnosed by a health professional

A

undiagnosed diabetes

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11
Q

what is it called when blood sugars are elevated but not high enough for diabetes

A

pre diabetes

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12
Q

T2D risk factors (5)

A

lack of exercise, overweight, family history, unhealthy eating, polycystic ovary syndrome

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13
Q

T2D symptoms (7)

A

excessive thirst and dry mouth, increased urination, tiredness, tingling/numbness in hands/feet, recurrent skin fungal infections, slow wound healing, blurred vision

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14
Q

in which gender is T2D more common

A

males

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15
Q

T2D risk increases with

A

age

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16
Q

what % of people over 18 hav T2D

A

20%

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17
Q

total annual cost for T2D

A

6 billion

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18
Q

increased blood glucose leads to

A

insulin release

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19
Q

insulin release leads to (3)

A

increased adipose and skeletal muscle glucose uptake, increased hepatic glycogenesis, decreased hepatic gluconeogenesis

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20
Q

increased adipose and skeletal muscle glucose uptake, increased hepatic glycogenesis, decreased hepatic gluconeogenesis leads to

A

decreased blood glucose

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21
Q

what happens to blood glucose overnight

A

decreases

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22
Q

low blood glucose leads to

A

glucagon release

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23
Q

glucagon leads to (2)

A

increased glycogenolysis and increased gluconeogenesis

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24
Q

increased glycogenolysis and increased gluconeogenesis leads to

A

increased blood glucose

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25
glucose from the GI tract goes to the
portal vein
26
glucose is converted to what in the liver (2)
pyruvate and glycogen
27
pyruvate is converted to
fat
28
glucose is uptaken to the (4)
brain, skeletal muscle, erythrocytes, fat
29
erythrocytes and skeletal muscle produce
lactate
30
lactate goes to
liver
31
what produces glucagon
pancreas
32
glucagon and insulin go to the
portal vein
33
in glycogenolysis glycogen is conveted to
glucose
34
lactate becomes
glucose
35
skeletal muscle produces
alanine
36
alanine goes to
liver
37
what organs contribute to hyperglycaemia (6)
intestine, kidney, fat, pancreas, muscle, liver, brain
38
what contributes to hyperglycaemia (3)
peripheral insulin resistance, hepatic insulin resistance, defective insulin secretion
39
defective insulin secretion
beta cell dysfunction
40
kidney in hyperglycaemia (2)
increased gluconeogenesis and increased glucose reabsorption
41
intestine in hyperglycaemia
decreased GLP1 secretion
42
pancreas in hyperglycaemia (2)
decreased insulin secretion and increased glucagon secretion
43
liver in hyperglycaemia
increased gluconeogenesis
44
brain in hyperglycaemia
reduced satiety
45
muscle in hyperglycaemia
decreased glucose uptake
46
fat in hyperglycaemia (3)
increased free fatty acids, decreased adiponectin, increased inflammatory cytokines
47
factors that affect insulin secretion and action (8)
body weight, physical activity, smoking, alcohol consumption, genetics, gene environment interaction, epigenetics, pregnancy
48
positive risk profile leads to
normoglycaemia
49
what type of complications develop first
macrovascular
50
impaired insulin pulsatility leads to
loss of first phase insulin response
51
loss of first phase insulin response leads to
beta cell failure
52
beta cell failure leads to
beta cell loss
53
pancreas structural elements (9)
spleen, pancreatic islets, splenic artery, pancreas, bile duct, common bile duct, duodenum, pancreatic duct, acinar cells
54
what do acinar cells do
secrete digestive enzymes
55
pancreratic islet histology elements (5)
alpha, beta, delta, eta, PP cells
56
alpha produces
glucagon
57
beta produces
insulin
58
delta produces
somatostatin
59
PP cells produce
pancreatic polypeptide
60
eta produce
ghrelin
61
how many phases of insulin secretion
2
62
which phase of insulin secretion is longer
phase 2
63
which phase of insulin secretion is bigger
phase 1
64
glucose gets into cell throu
GLUT2
65
glucose undergoes
glycolysis
66
glycolysis produces
pyruvate
67
pyuvate undergoes
Krebs cycle
68
Kreb cycle produces (2)
ATP and ADP
69
ATP closes -70 mv
potassium channel
70
potassium closure opens -30 mV
calcium VDCC
71
calcium filling leads to
insulin release
72
treatments for early diabetes (4)
life style changes, metformin, sulfonylureas, insulin
73