401 Metabolic Syndrome Flashcards

1
Q

Harmonising definition of metabolic syndrome

A

3 of the following. Waist circumference more than 94 cm in males of Europoid, African and Middle Eastern more than 90 cm in south Asian more than 85 cm in Japanese; more than 80 cm in females Europoid, African, Middle Eastern, more than 80 cm in South Asian and more than 90 cm in Japanese; Fasting triglyceride more than 150 mg/dl HDL less than 40 mg/dl; SBP more than 130 mmHg DBP more than 85 mmHg, FBS more than 100 mg/dl

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2
Q

strongly related to insulin resistance and risk of diabetes and CVD

A

intraabdominal circumference

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3
Q

key feature of the metabolic syndrome

A

central adiposity

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4
Q

True or false. No single gene explains the complex phenotype called the metabolic syndrome

A

True.

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5
Q

most accepted and unifying hypothesis to describe pathophysiology of the metabolic syndrome

A

insulin resistance

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6
Q

early major contributor to development of insulin resistance

A

overabundance of circulating fatty acids

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7
Q

most sensitive pathway of insulin action

A

inhibition of lipolysis in adipose tissue

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8
Q

pathologic mechanism to explain metabolic syndrome

A

leptin resistance

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9
Q

provides the unifying theory for aging and the predisposition to the metabolic syndrome

A

oxidative stress hypothesis

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10
Q

recently emerged as an important contributor to the development of obesity and related metabolic disorders

A

??

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11
Q

excellent marker of the insulin resistant condition

A

hypertriglyceridemia

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12
Q

other major lipoprotein disturbance in metabolic syndrome

A

reduction in HDL cholesterol

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13
Q

inhibitory to lipoprotein lipase further controbuting to hypertriglyceridemia

A

Increase in apoC-III

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14
Q

True or false. Hyperuricemia is another consequence of insulin resistance

A

True.

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15
Q

how does uric acid lead to hypertension

A

effect of uric acid on nitric acid synthase in the macula densa of the kidney and stimuation of the renin angiotensin aldosterone system

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16
Q

proinflammatory cytokines the reflect overproduction by the expanded adipose tissue mass

A

IL 1,6,18; resistin, TNF alpha, CRP

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17
Q

may be primary source of pro inflammatory cytokines locally and in the systemic circulation

A

adipose tissue macrophages

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18
Q

anti inflammatory cytokine produced exclusively by adipocytes

A

adiponectin

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19
Q

what is the action of adiponectin

A

enhances insulin sensitivity and inhibits many steps in the inflammatory process

20
Q

True or false. Reductions in adiponectin levels are common in metabolic syndrome

A

True.

21
Q

most common liver disease in part as a consequence of the insulin resistance of metabolic syndrome

A

NAFLD

22
Q

True or false.Women with PCOS are 2-4 times more likely to have metabolic syndrome

A

True.

23
Q

primary approach to metabolic syndrome

A

weight reduction

24
Q

most important component in weight loss

A

calorie restriction

25
Q

important for the maintenance of weight loss

A

increase in physical activity

26
Q

reduction of how much leads to weight reduction of 1 lb per week

A

About 500 kcal restriction daily

27
Q

anti hypertensive of choice for metabolic syndrome

A

ACEI

28
Q

given to inhibit fat absorption in metabolic syndrome

A

orlistat

29
Q

given to improve insulin mediated glucose update in muscle and adipose tissue

A

TZD

30
Q

given to increase HDL cholesterol

A

nicotinic acid

31
Q

can lead to weight loss but causes headache and nasopharyngitis

A

lorcaserin

32
Q

side effect of lorcaserin

A

headache and nasopharyngitis

33
Q

side effect of liraglutide

A

nausea and emesis

34
Q

appetite suppressants approved by US FDA

A

phertermine/topiramate, lorcaserin, naltrexone/bupropion and high dose liraglutide

35
Q

dose of liraglutide for weight loss vs in T2DM

A

3.0 mg liraglutide vs 1.8 mg in T2DM

36
Q

statin dose of those patients with metabolic syndrome with diabetes and known ASCVD

A

high intensity statin atorvastatin 40-80 mg or rosuvastatin 20-40 mg

37
Q

when should statin therapy by initiated if patient has metabolic syndrome but without diabetes

A

ASCVD score of 7.5%

38
Q

first drug of choice for lowering LDL

A

statin

39
Q

second line drug for choice for lowering LDL

A

ezetimibe

40
Q

what drug may be given in patient with familial hypercholesterolemia with insufficient lowering of LDL on statins and ezetimibe

A

Proprotein convertase/kexin type 9 (PCSK9 ) inhibitor

41
Q

why are cholestyramine, colestipol and colesevalam which are more effective than ezetimibe in lowering LDL is not given in patients with metabolic syndrome

A

they can increase triglyceride levels

42
Q

drug of choice to lower triglyceride level

A

fibrate (gemfibrozil or fenofirate)

43
Q

other drugs that lower triglyceride levels

A

nicotinic acid and omega 3 fatty acids

44
Q

is the only currently available drug with predictable HDL cholesterol raiding properties

A

??

45
Q

Physical activity advocated in the management of metabolic syndrome

A

60-90 min daily activity required

46
Q

when is gastric bypass or vertical sleeve gastrectomy an option

A

BMI more than 40 with no cormorbities BMI more than 35 with comorbidites