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Negative Mood-related Drinking May Mean Vulnerability For Major Depression And Alcohol Dependence

Date:
May 14, 2009
Source:
Alcoholism: Clinical & Experimental Research
Summary:
Major depression and alcohol dependence are strongly connected to one another. New research looks at how mood-related drinking may explain the overlapping familial risk for MD and AD. Drinking related to mood that is based on negative feelings accounted for the majority of the overlapping risk for both MD and AD that is due to genetic and familial environmental factors.

Major depression (MD) and alcohol dependence (AD) co-occur in individuals and within families at higher rates than expected by chance. This study looked at how mood-related drinking motives may explain the overlapping familial risk for MD and AD. Findings suggest that individuals with strong mood-related drinking motives, especially those based on negative feelings, may be vulnerable to developing both MD and AD.

"Although the frequent co-occurrence of AD and MD is widely recognized, the association between the disorders works differently for different people," explained Kelly Young-Wolff, whose master's thesis provided the stimulus for the study. "There are likely multiple mechanisms that result in the disorders co-occurring, for example, having MD increases the risk to develop AD, having AD increases the risk to develop MD; and causal factors – such as genetic risk or social circumstances – also contribute to developing both disorders."

The association can also differ by gender, added Victor Hesselbrock, professor of psychiatry at the University of Connecticut School of Medicine.

"Studies of both clinical and community samples have found that primary depression – depression occurs first, followed by alcoholism – is more typical in females while primary alcoholism – alcoholism followed by depression – is more common among males. Furthermore, while most persons affected with alcoholism do report a lifetime history of significant depressive symptoms, the reverse is not true. Most people with depression do not report long periods of heavy drinking nor do they report significant numbers of lifetime AD symptoms."

"Previous research had shown that individuals with higher than average scores on mood-related drinking scales are at increased risk to develop heavy drinking and AD," said Young-Wolff. "There is also evidence for familial risk factors, such as shared social and environmental or genetic factors, that contribute to overlapping risk for MD and AD, and for AD and mood-related drinking motives. Yet no study had examined whether mood-related drinking motives explain the overlapping familial risk for MD and AD."

Researchers examined 5,181 individuals (2,928 males, 2253 females), aged 30 and older, drawn from the Virginia Adult Twin Study of Psychiatric and Substance Use Disorders, a longitudinal study of psychopathology in two samples of adult twins. Participants completed a clinical interview which assessed lifetime MD, AD, and mood-related drinking motives.

"Our study suggests that the familial factors that underlie mood-related drinking motives are the same factors that contribute to the overlapping familial risk for MD and AD," said Young-Wolff. "The results are consistent with an indirect role for mood-related drinking motives in risk for depression and AD, and suggest that individuals with strong mood-related drinking motives may be vulnerable to developing both MD and AD.

"In short," said Hesselbrock," the findings indicate that the drinking motives for both males and females who are well into the period of risk for both AD and for major depressive disorder are similar. However, it should be noted that the findings do not address motives regarding the initiation of drinking behavior in adolescence; the findings apply only to the subjects' current drinking behavior. Since this was not a longitudinal study that began in adolescence, it cannot be assumed that these subjects' motives for beginning to drink when they were teenagers were to cope with feelings of depression."

"We might remember that there are many people with high mood-related drinking motives who do not have a history of MD or AD," cautioned Carol A. Prescott, professor of psychology at the University of Southern California as well as corresponding author for the study. "We would argue that the occasional use of alcohol to relax or unwind is not necessarily a bad idea. What should be avoided is heavy drinking as a regular coping strategy, since this can lead to other problems and is often a means of avoiding dealing with the issues that are contributing to the negative emotions."

Both Prescott and Hesselbrock said these findings could help clinicians identify individuals at risk for both MD and AD, with a focus on examining motives for drinking, as well as finding alternative strategies for coping with negative mood states.

"I think it is important that family members understand that there is a real link between drinking and depression," said Hesselbrock. "While the family member who is drinking may believe that they are doing so to cope with and relieve their symptoms of depression –and there is some pharmacological basis for this – they probably do not realize that their drinking will only prolong and exacerbate the negative feelings. For the person without AD, reducing/stopping drinking will help reduce the negative effect/depression. For the person with MD, stopping drinking will help reduce depression symptoms but not totally relieve the depression. It is a complex picture."


Story Source:

The above story is based on materials provided by Alcoholism: Clinical & Experimental Research. Note: Materials may be edited for content and length.


Journal Reference:

  1. Young-Wolff et al. Mood-Related Drinking Motives Mediate the Familial Association Between Major Depression and Alcohol Dependence. Alcoholism Clinical and Experimental Research, 2009; DOI: 10.1111/j.1530-0277.2009.00978.x

Cite This Page:

Alcoholism: Clinical & Experimental Research. "Negative Mood-related Drinking May Mean Vulnerability For Major Depression And Alcohol Dependence." ScienceDaily. ScienceDaily, 14 May 2009. <www.sciencedaily.com/releases/2009/05/090512192903.htm>.
Alcoholism: Clinical & Experimental Research. (2009, May 14). Negative Mood-related Drinking May Mean Vulnerability For Major Depression And Alcohol Dependence. ScienceDaily. Retrieved July 28, 2014 from www.sciencedaily.com/releases/2009/05/090512192903.htm
Alcoholism: Clinical & Experimental Research. "Negative Mood-related Drinking May Mean Vulnerability For Major Depression And Alcohol Dependence." ScienceDaily. www.sciencedaily.com/releases/2009/05/090512192903.htm (accessed July 28, 2014).

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