Part 2 Flashcards

0
Q

In a study on women with colorectal cancer, what association was there with telomere length?

A

There was a U shaped curve. In other words, there was an increased risk for colorectal cancer with telomeres that were too long or too short

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1
Q

short telomeres put you at increased risk for what?

A

Cancer, diabetes, cardiovascular disease and death

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2
Q

What is glycation?

A

The nonenzymatic addition of simple sugars to proteins

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3
Q

What is a fibroblast?

A

A cell that synthesizes the extracellular matrix and collagen

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4
Q

What is carnosine made of?

A

It is a dipeptide of beta-alanine and histidine

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5
Q

What organs is carnosine primarily found in?

A

Brain and muscle, less in the heart, liver and kidneys as well as some other organs. It is primarily found in red meat.

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6
Q

What is the MOA of carnosine?

A

It decreases glycation and cross-linking of proteins. It is also an antioxidant.

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7
Q

What effect did carnosine have on human diploid fibroblasts?

A

It decreased the rate of telomere shortening and damage

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8
Q

What effect did carnosine have on fruit flies in one study?

A

It increased the lifespan of male fruit flies by 16% and female fruit flies by 36%

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9
Q

What effect does carnosine have on lipids?

A

It decreases oxidative stress

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10
Q

What effect does carnosine have on platelet aggregation?

A

It decreases platelet aggregation in patients with a high clotting index and increases platelet aggregation in patients with a low clotting index

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11
Q

What effect does carnosine have on cataracts and skin?

A

It decreases cataract formation and decreases skin aging

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12
Q

Carnosine + what is used to treat peptic ulcers?

A

Zinc

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13
Q

what effect does carnosine have on exercise?

A

It increases muscle strength and endurance

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14
Q

What is the typical dose of carnosine supplementation?

A

100 - 200 mg per day

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15
Q

What is another name for vitamin C?

A

L-ascorbic acid

16
Q

Is vitamin C an essential or nonessential vitamin?

A

Essential: it must be eaten.

17
Q

Is vitamin C an antioxidant and what does this mean?

A

Yes. It is an electron doner. It is the major water-soluble antioxidant in the body.

18
Q

What reduces vitamin C back to its active form?

A

Glutathione

19
Q

Vitamin C plays what major structural role in the body?

A

Collagen synthesis

20
Q

In the epidemiologic study NHANEs, what relationship was there in men and women with vitamin C concentration?

A

There was an inverse relationship with vitamin C concentration and mortality in men. The association was weaker with women.

21
Q

What effect did vitamin C have on human vascular endothelial cells?

A

It decreased age-dependent telomere shortening by 52 to 62% which therefore increased lifespan of the cells

22
Q

What is the typical dosing for vitamin C?

A

Up to 1000 mg per day

23
Q

Is CoQ10 fat-soluble or water-soluble?

A

Fat soluble

24
Q

What role does CoQ10 have in the mitochondria?

A

It accepts electrons from complex I and II and helps transport these electrons through the mitochondrial electron transport chain to create ATP

25
Q

What effect did CoQ10 have on aging in one animal study?

A

It did not increase lifespan but one study showed decreased age-related DNA damage

26
Q

What disease states have been shown to benefit from CoQ10? (7 of them)

A

Cancer, endothelial dysfunction, Parkinson’s disease (animal studies), congestive heart failure, hypertension, periodontal disease and Alzheimer’s disease

27
Q

What disease states need to be considered before prescribing CoQ10?

A

Atrial fibrillation as it can interact with Coumadin and decrease the INR. Also diabetes as it can lower glucose. Additionally hypertension as it can lower blood pressure

28
Q

What are the typical doses for CoQ10 based on age?

A

20 to 35: 30 mg per day. 35 to 50: 50 to 100 mg per day. Greater than 50: 50 to 100 mg b.i.d.

29
Q

If the patient is on statin medication, what dosage of CoQ10 would you recommend?

A

50–100 mg b.i.d.

30
Q

Taurine is an amino acid composed of what three components?

A

Vitamin B6, methionine and cysteine

31
Q

What vitamins does taurine need to function properly?

A

Zinc

32
Q

What can deplete the body of taurine?

A

Chronic stress

33
Q

What are the primary food sources of taurine?

A

Meat, fish, poultry, eggs and dairy. Beans and nuts contain methionine and cysteine which can then be combined with vitamin B6 to make taurine.

34
Q

What is the most abundant intracellular sulfur containing amino acid in the body?

A

Taurine

35
Q

What 4 diseases does taurine benefit?

A

Congestive heart failure, hypertension, arrhythmias and diabetes (it increases insulin sensitivity)

36
Q

What effect does taurine have on lipids?

A

Decreased LDL, decreased ApoB, decreased oxidative LDL and decreased triglycerides

37
Q

What anti-aging functions does taurine have in the body?

A

Conjugation of bile acids, antioxidant, Osmo regulation, membrane stabilization and modulation of calcium signaling

38
Q

What is the typical dosing for taurine?

A

2–3 g QD – b.i.d.