Early treatment of women with alcohol addiction (EWA): a comprehensive evaluation and outcome study. I. Patterns of psychiatric comorbidity at intake

Rescue of glutamate transport in the lateral habenula alleviates depression- and anxiety-like behaviors in ethanol-withdrawn rats

Alcoholism and psychiatric disorders like depression and anxiety are often comorbid. Although the mechanisms underlying this comorbidity are unclear, emerging evidence suggests that maladaptation of the glial glutamate transporter GLT-1 may play a role. Findings from animal and human studies have linked aversive states, including those related to drugs of abuse and depression, to aberrant activity in the lateral habenula (LHb). The relationship between GLT-1 maladaptation, LHb activity, and abnormal behaviors related to alcohol withdrawal, however, remains unknown. Here we show that dihydrokainic acid (DHK), a GLT-1 blocker, potentiated glutamatergic transmission to LHb neurons in slices from ethanol naïve rats; this potentiation, though, was not observed in slices from rats withdrawn from repeated in vivo ethanol administration, suggesting reduced GLT-1 function. Furthermore, GLT-1 protein expression was reduced in the LHb of withdrawn rats. This reduction was restored by systemic administration of ceftriaxone, a β-lactam antibiotic known to increase GLT-1 expression. Systemic ceftriaxone treatment also normalized the hyperactivity of LHb neurons in slices from withdrawn rats, which was reversed by bath-applied DHK. Finally, systemic administration of ceftriaxone alleviated depression- and anxiety-like behaviors, which was fully blocked by intra-LHb administrations of DHK, suggesting that GLT-1's function in the LHb is critical. These findings highlight the significant role of LHb astrocytic GLT-1 in the hyperactivity of LHb neurons, and in depressive- and anxiety-like behaviors during ethanol withdrawal. Thus, GLT-1 in the LHb could serve as a therapeutic target for psychiatric disorders comorbid with ethanol withdrawal.

Mortality risk up to 25 years after initiation of treatment among 420 Swedish women with alcohol addiction

AIMS

Women treated for alcohol addiction have mortality rates three to five times those of women from the general population (GP). However, these figures may be inflated because socially disadvantaged women with advanced drinking careers are over-represented in previous studies. Our aim was to study the long-term mortality of socially relatively well-functioning patients coming to their first treatment, compared to matched GP controls.

DESIGN

The mortality rates and causes of death were compared between patients and their matched GP controls, using data from the Causes of Death Register throughout the follow-up period (0-25 years).

SETTING

A specialized treatment programme for women only, called 'Early treatment for Women with Alcohol Addiction' (EWA) at the Karolinska Hospital, Stockholm, Sweden.

PARTICIPANTS

Subjects (n = 420) receiving their first treatment at the EWA programme, compared to a group of matched GP women (n = 2037).

FINDINGS

The women patients had significantly higher mortality than matched GP controls throughout the whole follow-up period, with a relative risk of 2.4. However, the younger women had four times higher mortality than their matched controls. The peak of deaths occurred during the first 5 years, and alcohol-related causes of death were highly over-represented, as were uncertain suicides and accidents.

CONCLUSIONS

First-time-treated women with alcohol addiction have a substantially lower mortality than reported previously from clinical samples, except for the youngest group. Our figures were corrected for confounding factors such as socio-demographic status. We believe our results could apply to broader groups of heavy drinking women, inside or outside specialized treatment settings.

Comorbid psychiatric disorders predict and influence treatment outcome in female alcoholics

Drinking patterns, psychiatric comorbidity and personality disorders (PD) at intake and at a 2-year follow-up were studied in 120 female alcoholics early in their treatment career. At follow-up, the women had improved their drinking patterns, but their mental health still differed significantly from women of the general population. Psychiatric comorbidity at intake correlated with a significantly worse drinking and mental health outcome. Subjects with high scores on phobias more frequently dropped out of treatment and thereby had a worse drinking outcome. Subjects with depression at follow-up also had a poorer drinking outcome, as well as subjects with schizoid PD. When tested by multivariate analyses, only depression at follow-up contributed significantly to the increased explained variance in drinking outcome when controlling for drinking pattern and treatment duration.