+ All Categories
Home > Documents > Neurobiology of Addiction - ACMT · The Neurobiology of Addiction 2. Psychosocial Treatments 3....

Neurobiology of Addiction - ACMT · The Neurobiology of Addiction 2. Psychosocial Treatments 3....

Date post: 28-May-2020
Category:
Upload: others
View: 8 times
Download: 1 times
Share this document with a friend
14
1 Petros Levounis, MD, MA Chair, Department of Psychiatry Rutgers New Jersey Medical School ADDICTION MEDICINE ACADEMY Clearwater Beach, Florida March 26, 2015 Bench to Bedside: From the Science to the Practice of Addiction Medicine 2 1. The Neurobiology of Addiction 2. Psychosocial Treatments 3. Pharmacological Treatments 4. Conclusions Outline 2 1 Neurobiology of Addiction 3
Transcript
Page 1: Neurobiology of Addiction - ACMT · The Neurobiology of Addiction 2. Psychosocial Treatments 3. Pharmacological Treatments 4. Conclusions Outline 1 Neurobiology of Addiction 3 . 2

1

Petros Levounis, MD, MA Chair, Department of Psychiatry

Rutgers New Jersey Medical School

ADDICTION MEDICINE ACADEMY Clearwater Beach, Florida

March 26, 2015

Bench to Bedside: From the Science to the Practice of

Addiction Medicine

2

1. The Neurobiology of Addiction 2. Psychosocial Treatments 3. Pharmacological Treatments 4. Conclusions

Outline

2

1 Neurobiology of Addiction

3

Page 2: Neurobiology of Addiction - ACMT · The Neurobiology of Addiction 2. Psychosocial Treatments 3. Pharmacological Treatments 4. Conclusions Outline 1 Neurobiology of Addiction 3 . 2

2

4

~ 2000

The Fundamental Model

Biological

Psychological

Social

Use Brain Switch

Addiction

5

Olsen and Levounis, Sober Siblings, 2008.

6

2015

Page 3: Neurobiology of Addiction - ACMT · The Neurobiology of Addiction 2. Psychosocial Treatments 3. Pharmacological Treatments 4. Conclusions Outline 1 Neurobiology of Addiction 3 . 2

3

7

1.  Continuum of Illness

2.  Motivational Circuitry

3.  Antireward Pathways

7

Three Novel Areas

GAME 1 ?

A. A sure gain of $250.

B. 25% chance to gain $1,000, 75% chance to gain nothing.

Adapted from: Tversky and Kahneman, Science, 1981.

Reward Systems

8

GAME 1 ?

A. A sure gain of $250. 84%

B. 25% chance to gain $1,000, 16% 75% chance to gain nothing.

Reward Systems

Adapted from: Tversky and Kahneman, Science, 1981.

9

Page 4: Neurobiology of Addiction - ACMT · The Neurobiology of Addiction 2. Psychosocial Treatments 3. Pharmacological Treatments 4. Conclusions Outline 1 Neurobiology of Addiction 3 . 2

4

GAME 2 ?

A. A sure loss of $750.

B. 25% chance to lose nothing, 75% chance to lose $1,000.

Antireward Systems

Adapted from: Tversky and Kahneman, Science, 1981.

10

GAME 2 ?

A. A sure loss of $750. 13%

B. 25% chance to lose nothing, 87% 75% chance to lose $1,000.

Adapted from: Tversky and Kahneman, Science, 1981.

Antireward Systems

11

GAME 1

25% + 750 25% - 250 25% - 250 25% - 250

GAME 2

25% + 750 25% - 250 25% - 250 25% - 250

MATHEMATICS

12

Page 5: Neurobiology of Addiction - ACMT · The Neurobiology of Addiction 2. Psychosocial Treatments 3. Pharmacological Treatments 4. Conclusions Outline 1 Neurobiology of Addiction 3 . 2

5

§  People avoid risks to ensure gains (even small gains).

§  People take risks (even big risks) to avoid definite losses.

§  Psychology trumps probability.

HUMAN NATURE

13

2 Psychosocial Treatments

14

15 15

1.  Psychoanalysis works for all treatable mental illness.

2.  Psychoanalysis does not work for addiction.

3.  Therefore, addiction cannot be treated.

1st Wave: Psychoanalysis

15

Page 6: Neurobiology of Addiction - ACMT · The Neurobiology of Addiction 2. Psychosocial Treatments 3. Pharmacological Treatments 4. Conclusions Outline 1 Neurobiology of Addiction 3 . 2

6

16 16

The prototype, Synanon, was founded in California in 1958 to address heroin addiction.

The goal was to: Ø  break down defenses, Ø  bust through denial, and Ø  reshape the addict’s personality.

2nd Wave: Boot Camps

16

17

The Frying Pan

17

Volkow et al, J Neuroscience, 2001

18 18

1.  Mutual Help Groups (12-step)

2.  Cognitive Behavioral Therapy

3.  Family Therapy

4.  Primary Care Services

5.  Mental Health Services

6.  Aftercare

3rd: The Kitchen Sink Approach

18

Nunes, Selzer, Levounis, Davies, Substance Dependence and Co-Occurring Psychiatric Disorders, 2010.

Page 7: Neurobiology of Addiction - ACMT · The Neurobiology of Addiction 2. Psychosocial Treatments 3. Pharmacological Treatments 4. Conclusions Outline 1 Neurobiology of Addiction 3 . 2

7

Mutual Help

19

20 20

Attitudes and Perceptions

20

PATIENTS

1.  Inner peace 2.  God 3.  Medical Services 4.  AA 5.  Housing 6.  Spirituality 7.  Outpatient Tx 8.  Community 9.  Gov’t Services 10. Trusting People 11.  Job

What Medicine Thinks

Patients Think 1.  Housing 2.  Outpatient Tx 3.  Medical Services 4.  Job 5.  Trusting People 6.  AA 7.  Inner Peace 8.  Community 9.  Gov’t Services 10. Spirituality 11. God

MEDICAL STAFF

1.  Housing 2.  Gov’t Services 3.  Medical Services 4.  Outpatient Tx 5.  Job 6.  Community 7.  Trusting People 8.  Inner peace 9.  God 10. Spirituality 11. AA

Goldfarb, Am J Drug Alcohol Abuse, 1996.

21 21 Levounis and Arnaout, Handbook of Motivation and Change: A Practical Guide for Clinicians, 2010. Graphic by Lukas Hassel.

4th: Motivational Interviewing (MI)

Page 8: Neurobiology of Addiction - ACMT · The Neurobiology of Addiction 2. Psychosocial Treatments 3. Pharmacological Treatments 4. Conclusions Outline 1 Neurobiology of Addiction 3 . 2

8

“Between stimulus and response there is a space. In that space is our power to choose our response. In our response lie our growth and our freedom.”

Viktor E. Frankl

5th: Mentalization

Frankl V, Man’s Search for Meaning, 1959.

22

23

24

11.4

17.7

24.2 25

9.612.213.2

18.5

5.6

15.7

0

10

20

30

40

Only same-sex Mostly same-sex Equally both sexes Mostly other sex Only other sex

Women Men

% re

port

ing

any

subs

tanc

e us

e di

sord

ers

* ***

* Ref

*p<0.05, ***p<.001 based on logistic regression analysis adjusted for race, age, educational level, personal income, employment status, relationship status, health insurance status, geographic location, MSA, age at alcohol onset, and family history of AOD problems. Reference group was “heterosexual” group.

***

And Back to Psychodynamics…

Courtesy of Sean McCabe, PhD.

Page 9: Neurobiology of Addiction - ACMT · The Neurobiology of Addiction 2. Psychosocial Treatments 3. Pharmacological Treatments 4. Conclusions Outline 1 Neurobiology of Addiction 3 . 2

9

3 Pharmacological

Treatments 25

Porter and Jick, N Engl J Med, January 10, 1980.

26

The Prescription Opioids Epidemic: The Root of the Disaster

27

Chronic Non-Cancer Pain

Page 10: Neurobiology of Addiction - ACMT · The Neurobiology of Addiction 2. Psychosocial Treatments 3. Pharmacological Treatments 4. Conclusions Outline 1 Neurobiology of Addiction 3 . 2

10

Admissions: 1999 Primary non-heroin opioid admission rates (per 100,000)

28

Admissions: 2001 Primary non-heroin opioid admission rates (per 100,000)

29

Admissions: 2003 Primary non-heroin opioid admission rates (per 100,000)

30

Page 11: Neurobiology of Addiction - ACMT · The Neurobiology of Addiction 2. Psychosocial Treatments 3. Pharmacological Treatments 4. Conclusions Outline 1 Neurobiology of Addiction 3 . 2

11

Admissions: 2005 Primary non-heroin opioid admission rates (per 100,000)

31

Admissions: 2007 Primary non-heroin opioid admission rates (per 100,000)

32

Admissions: 2009 Primary non-heroin opioid admission rates (per 100,000)

33

Page 12: Neurobiology of Addiction - ACMT · The Neurobiology of Addiction 2. Psychosocial Treatments 3. Pharmacological Treatments 4. Conclusions Outline 1 Neurobiology of Addiction 3 . 2

12

0

1

2

3

4

5

6

7

8

9

10

'70 '72 '74 '76 '78 '80 '82 '84 '86 '88 '90 '92 '94 '96 '98 '00 '02 '04 '06

Dea

th ra

te p

er 1

00,0

00

Heroin Cocaine

Unintentional Drug Poisoning Deaths United States: 1970 – 2007

Year

National Vital Statistics System, http://wonder.cdc.gov. 34

35

Alcorn, The Lancet, June 5, 2014.

Unintentional Drug Poisoning Deaths United States: 1999 – 2011

36 36

Ø  Agonists: Methadone Nicotine Replacement

Ø  Partial Agonists: Buprenorphine Varenicline

Ø  Antagonists: Naltrexone

Addiction Strategies

36

Levounis and Herron, The Addiction Casebook, 2014.

Page 13: Neurobiology of Addiction - ACMT · The Neurobiology of Addiction 2. Psychosocial Treatments 3. Pharmacological Treatments 4. Conclusions Outline 1 Neurobiology of Addiction 3 . 2

13

37

-10 -9 -8 -7 -6 -5 -4 0

10

20

30

40

50

60

70

80

90

100

% Efficacy

Log Dose of Opioid

Full Agonist (Methadone)

Partial Agonist (Buprenorphine)

Antagonist (Naloxone)

The Ceiling Effect

37

Adapted from: Renner and Levounis, Office-Based Buprenorphine Treatment of Opioid Dependence, 2011.

4 Conclusions

38

1.  Addiction hijacks the pleasure/reward and anti-reward pathways of the brain, as well as the person’s internal motivation.

2.  Cognitive Behavior Therapy, mutual help groups, and Motivational Interviewing revolutionized addiction treatment.

3.  In 2015, buprenorphine is the first line treatment of opioid use disorder.

39

Page 14: Neurobiology of Addiction - ACMT · The Neurobiology of Addiction 2. Psychosocial Treatments 3. Pharmacological Treatments 4. Conclusions Outline 1 Neurobiology of Addiction 3 . 2

14

Thank you

NJMS.Rutgers.edu/Psychiatry

40


Recommended