19: Sport Doping Flashcards

1
Q

Doping is defined as what by the Canadian Policy on Doping in Sport?

A

“The presence in the body of banned substances as determined by a positive test result or evidence of the use of banned practice.”

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2
Q

List three historical uses of doping.

A

The name of an alcoholic beverage made from grape skins by Zulu warriors to enhance their prowess in battle.

Ancient Greek athletes are known to have used special diets and stimulating potions to fortify themselves.

In the 19th century cyclists and other endurance athletes often used strychnine, caffeine, cocaine, and alcohol.

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3
Q

What was the first international sports federation to ban the use of doping and when was it founded? Why were rules difficult to execute?

A

International Amateur Athletic Federation (IAAF) in 1928.

Rules difficult to execute due to lack of screening methods.

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4
Q

In what Olympics were drug tests first introduced?

A

1968 X Olympic winter games in Grenoble, France and at the Olympic summer games in Mexico in the same year.

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5
Q

What are the three purposes of drug testing?

A

1) protection of the health of athletes.
2) respect for both medical and sports ethics.
3) equality for all competing athletes.

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6
Q

What are the four most popular performance-enhancing drugs?

A

Stimulants
Anabolic steroids
Human growth hormone
Erythropoietin (EPO)

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7
Q

Describe the process of drug testing. Describe three ways to test cheating.

A

Urine sample divided into 2 portions, A and B. Samples may be re-tested later (up to 8 years for some high-profile events, e.g. Olympic Games).

Test cheating:
Urine replacement
Diuretics
Blood transfusion

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8
Q

What is the trend of testing anabolic steroids?

A

Number of samples tested constantly increases. The percentage of positive results remains low (~1%).

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9
Q

List the penalties for violating Major League Baseball policies with regards to steroids.

A

First positive: 50-game suspension
Second positive: 100-game suspension
Third positive: Lifetime suspension, possibility of reinstatement after 2 years

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10
Q

List the penalties for violating Major League Baseball policies with regards to amphetamines.

A

First positive: Mandatory follow-up testing
Second positive: 25-game suspension
Third positive: 80-game suspension
Fourth positive: Commissioner’s discretion

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11
Q

What are the seven prohibited substances? Describe them in brief.

A

Stimulants (e.g. amphetamine, ephedrine). Possibility to obtain exemption for Ritalin used to treat ADH.

Beta-blockers (propranolol most common) in certain sports (e.g. shooting). Calming, anti-tremor and, anti-anxiety effects.

Diuretics. Concerns that urinary dilution enables athletes using prohibited drugs, especially androgenic anabolic steroids (AAS), to escape detection. Currently approved in some sports and some conditions (e.g. to treat hypertension).

Glucocorticosteroids (GCS). Controversial data about performance enhancement and difficult to prove misuse.

Insulin. Athletes without insulin-dependent diabetes mellitus (IDDM) were misusing it for its anabolic and anti-catabolic effects.

Human chorionic gonadotrophin (hCG). Athletes administering it to restore endogenous production of testosterone after misusing anabolic steroids.

Human growth hormone (hGH).

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12
Q

What is the most infamous use of androgenic anabolic steroids?

A

East Germany team during 1980s, mainly used by female athletes, shortly after introduction resulted in 4-fold increase in Olympic medal scores.

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13
Q

Why does detecting doping with testosterone remain a challenge?

A

Need to distinguish exogenously administered testosterone from that produced endogenously.

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14
Q

What was the initial method of detecting doping with testosterone and why was it problematic? What is the current method?

A

Initial method based on elevation of the urinary testosterone/epitestosterone ratio above 6. Problem: ethnic differences.

Now detected using Isotope Ratio Mass Spectrometry (IRMS).

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15
Q

Why is detection of AAS doping challenging?

A

New synthetic AAS constantly appear on the market.

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16
Q

What is blood doping and how was it first used?

A

Considered as use of drugs and methods to alter blood parameters and enhance performance, especially in endurance events.

First used as a method to withdraw athlete’s blood, store it, and re-infuse it before competition to improve maximal aerobic capacity.

17
Q

List two ways considered to be blood doping.

A

Erythropoietin: kidney hormone that stimulates production of red blood cells.

Darbepoietinalfa (Aranesp): drug used in anemia.

18
Q

What is the controversy regarding Lance Armstrong and erythropoietin? What is a recently discovered use for erythropoietin?

A

Researchers from Netherlands found no effect of erythropoietin on cyclists’ performance.

Found to be useful in improving cognitive functions. Epo receptors in the brain were shown to be important for neuroprotection.

19
Q

What is a beta blocker used to improve marksmen shooting? What is the effect of the drug? In what sports may beta blocker abuse be a problem?

A

Metoprolol, a beta-adrenergic blocker.

Effect of drug on heart rate and blood pressure is low, improvement probably due to a nervous effect on hand tremor.

Abuse may be a problem in sports that are connected with high emotional stress.

20
Q

What is the controversy regarding cannabinoids and doping? Why?

A

Cannabis does not improve performance but athletes are penalized.

Supporters of cannabis ban argue that use of any drug is against idea of sportsmanship.

21
Q

What is an issue with therapeutic exemptions?

A

Abuse, e.g. anti-asthma drugs used for better oxygen supply to the body.

22
Q

Where did the risk of gene doping originate?

A

1980s: transgenic mice with an extra copy of rat growth hormone achieved almost twice the weight of the control.

23
Q

Genes that can affect the performance include those encoding what three things?

A

Erythropoietin, myostatin, insulin-like growth factor 1.

24
Q

The genetic procedure to obtain individuals with increased fitness may use what technique? How does it work?

A

Ooplasmic transfer technique.

In the ooplasmic transfer, the cytoplasm from healthy donor oocytes is injected to parent oocytes.