Cardiovascular risk factors in affective disorder

The Role of the Gut Microbiome in Bipolar Disorder and its Common Comorbidities

Bipolar disorder is a decidedly heterogeneous and multifactorial disease, with significant psychosocial and medical disease burden. Much difficulty has been encountered in developing novel therapeutics and objective biomarkers for clinical use in this population. In that regard, gut-microbial homeostasis appears to modulate several key pathways relevant to a variety of psychiatric, metabolic, and inflammatory disorders. Microbial impact on immune, endocrine, endocannabinoid, kynurenine, and other pathways are discussed throughout this review. Emphasis is placed on this system's relevance to current pharmacology, diet, and comorbid illness in bipolar disorder. Despite the high level of optimism promoted in many reviews on this topic, substantial obstacles exist before any microbiome-related findings can provide meaningful clinical utility. Beyond a comprehensive overview of pathophysiology, this review hopes to highlight several key areas where progress is needed. As well, novel microbiome-associated suggestions are presented for future research.

La dépression dans les populations médicales

La prévalence élevée des états dépressifs dans la clientèle du généraliste (environ 10% des consultants) et chez les patients de médecine interne (15 à 25% des hospitalisés) est maintenant bien établie. Ce fait a été longtemps négligé par les praticiens et les psychiatres; même actuellement son importance reste sous-estimée.

La proportion d’états dépressifs non-identifiés par les praticiens varie de 1/3 à 2/3 selon les études. Les dépressions méconnues sont source de surconsommation médicale (consultations répétées, examens paracliniques, hospitalisations pour bilans) et ont une évolution moins favorable, plus chronique, que les dépressions identifiées et correctement traitées. Des cas sévères de dépression échappent souvent au dépistage, ce qui n’est pas sans conséquences graves: on sait en effet que la majorité des gens qui se suicident ont consulté un médecin dans le mois qui a précédé leur décès.

Parmi les facteurs qui rendent compte de la méconnaissance des états dépressifs par les médecins non-spécialistes, les uns tiennent aux patients qui, dans leur dialogue avec le généraliste, utilisent davantage le langage de la somatisation qu’ils ne verbalisent explicitement un vécu dépressif. D’autres tiennent aux praticiens, à leur intérêt prévalent et parlois exclusif pour les problèmes somatiques, à leur souci légitime de ne pas passer à côté du diagnostic d’une affection médicale, à l’idée qu’ils se font de la dépression et des déprimés, à leur propension à considérer toutes les manifestations dysphoriques comme conséquences légitimes de la maladie physique. Il faut aussi compter avec les conditions d’exercice du généraliste, le temps très court de sa consultation où il n’est pas facile de différencier une réelle pathologie dépressive, généralement liée à des troubles anxieux et moins nette que dans les consultations Psychiatriques, de troubles émotionnels mineurs, situationnels et transitoires.

Les instruments habituellement utilisés pour le dépistage et le diagnostic de la dépression (échelles d’autoévaluation, critères de diagnostic type RDC ou critères du DSM III) n’ont pas été validés pour les populations de patients somatiques. Récemment deux nouveaux instruments viennent d’être mis au point pour la détection de la symptomatologie dépressive chez les patients somatiques: I'échelle HAD (Hospital Anxiety and Depression Scale) de Zigmond et Snaith (1983) et le Questionnaire Abrégé d’Auto-Évaluation de la Symptomatologie Dépressive (QD2A) de Pichot et al. (1984). Ces échelles, de passation rapide et bien acceptées par les patients, peuvent servir d’aide au diagnostic pour le praticien dans la perspective d’un meilleur dépistage de la dépression et d’une prise en charge plus efficace des déprimés.

Is Mania the Hypertension of the Mood? Discussion of A Hypothesis

Beyond both being biphasic/bidirectional disorders (hypo)mania and essential hypertension share a surprising number of similarities and an overlap between their genetics, biological background, underlying personality and temperamental factors, precipitating factors, comorbidity and response to treatment, indicating a possibly partially shared biological background. Based on theoretical knowledge, similarities related to characteristics, manifestation and course, and the results of pharmacological studies related to the effects and side effects of pharmacotherapies used in the treatment of these two distinct disorders, the authors outline a hypothesis discussing the similar origins of these two phenomena and thus mania being the hypertension of mood in memory of Athanasios Koukopoulos, one of the greatest researchers and theoreticists of mania of all time.

African Americans, Depression, and Suicide Risk

The aim of the current study was to determine which variable would be a better predictor of suicide risk: perceived social support or serum cholesterol level. There was a significant negative correlation between suicide risk and perceived social support but no significant correlation between suicide risk and serum cholesterol. Perceived social support was a better predictor of suicide risk than was serum cholesterol level and accounted for 17% of the variance. Depressed patients with a history of suicide attempt had a significantly lower serum cholesterol level, scored significantly higher on the Suicide Risk Scale, and scored significantly lower on the Perceived Social Support Scale than did depressed patients with no history of suicide attempt. Findings suggest that perceived social support is a better predictor of suicide risk for depressed African Americans.

Suicide in stroke survivors: epidemiology and prevention

Stroke is a dramatic event and is associated with potentially severe consequences, including disability, mortality, and social costs. Stroke may occur at any age; however, most strokes occur in individuals aged 65 years and older. Previous research has found that stroke increases suicide risk, especially among women and younger patients. The aim of the current review is to investigate the relationship between suicide and stroke in order to determine which stroke patients are at elevated risk for suicide. Moreover, we review the literature in order to provide pharmacological treatment strategies for stroke patients at high risk of suicide. We performed a careful search to identify articles and book chapters focused on this issue, selecting only English-language articles published from 1990 to 2014 that addressed the issue of suicide after stroke and its pharmacological management. We found 12 clinical trials that explored the relationship between stroke and suicidal ideation and/or suicidal plans and 11 investigating suicide as the cause of death after stroke. We identified stroke as a significant risk factor for both suicide and suicidal ideation, especially among younger adult depressed patients in all articles, providing further support for the association between post-stroke and suicidality. Suicide risk is particularly high in the first 5 years following stroke. Depression, previous mood disorder, prior history of stroke, and cognitive impairment were found to be the most important risk factors for suicide. Selective serotonin reuptake inhibitors (SSRIs) represent the treatment of choice for stroke survivors with suicide risk, and studies in rats have suggested that carbolithium is a promising treatment in these patients. Early identification and treatment of post-stroke depression may significantly reduce suicide risk in stroke patients.

The impact of periventricular white matter lesions in patients with bipolar disorder type I

INTRODUCTION

White matter hyperintensities (WMHs) are one the most common neuroimaging findings in patients with bipolar disorder (BD). It has been suggested that WMHs are associated with impaired insight in schizophrenia and schizoaffective patients; however, the relationship between insight and WMHs in BD type I has not been directly investigated.

METHODS

Patients with BD-I (148) were recruited and underwent brain magnetic resonance imaging (MRI). Affective symptoms were assessed using Young Mania Rating Scale (YMRS) and Hamilton Depression Rating Scale (HDRS17); the presence of impaired insight was based on the corresponding items of YMRS and HDRS17.

RESULTS

Multiple punctate periventricular WMHs (PWMHs) and deep WMHs (DWMHs) were observed in 49.3% and 39.9% of the cases, respectively. Subjects with lower insight for mania had significantly more PWMHs (54.6% vs 22.2%; p < 0.05) when compared to BD-I patients with higher insight for mania. The presence of PWMHs was independently associated with lower insight for mania: patients who denied illness according to the YMRS were 4 times more likely to have PWMHs (95% CI: 1.21/13.42) than other patients.

CONCLUSIONS

Impaired insight in BD-I is associated with periventricular WMHs. The early identification of BD-I subjects with PWMHs and impaired insight may be crucial for clinicians.

A combined analysis of worldwide studies demonstrates an association between bipolar disorder and tobacco smoking behaviors in adults

OBJECTIVES

Worldwide studies were combined to examine two hypotheses: (i) bipolar disorder is associated with smoking behaviors, compared with the general population; and (ii) smoking behavior prevalences in bipolar disorder are intermediate between those in major depressive disorder and those in schizophrenia.

METHODS

Combined analyses used 56 articles on adults obtained from a PubMed search or the senior author's article collection. Odds ratios (ORs) and their 95% confidence intervals (CIs) compared current smoking, heavy smoking among current smokers, smoking cessation in ever smokers, and ever smoking in bipolar disorder versus control groups.

RESULTS

The combined OR was 3.5 (CI: 3.39-3.54) in 51 current smoking studies of bipolar disorder versus the general population from 16 countries. More limited data provided an OR = 0.34 (CI: 0.31-0.37) for smoking cessation and an OR = 3.6 (CI: 3.30-3.80) for ever smoking. The combined OR was 0.76 (CI: 0.74-0.79) for current smoking in bipolar disorder versus schizophrenia in 20 studies from ten countries. Ever smoking may be lower in bipolar disorder than in schizophrenia (OR = 0.83, CI: 0.75-0.91). The OR was 2.05 (CI: 2.00-2.10) for current smoking in bipolar disorder versus major depression in 18 studies from seven countries. Ever smoking may be higher (OR = 1.5, CI: 1.40-1.70) and smoking cessation lower (OR = 0.51, CI: 0.45-0.59) in bipolar disorder than in major depression.

CONCLUSIONS

Increased current smoking in bipolar disorder versus the general population reflected increased ever smoking (initiation) and decreased smoking cessation. Smoking behavior frequencies in bipolar disorder may be between those in depressive disorder and schizophrenia, with schizophrenia showing the highest severity level.

Do stroke patients have an increased risk of developing suicidal ideation or dying by suicide? An overview of the current literature

Stroke is a leading cause of death that affects 15 million people worldwide each year. Increasing evidence suggests that stroke confers substantial risk for suicide and following a stroke, patients frequently develop poststroke depression, which is a well-established risk factor for suicide. In this overview of the current literature, we examined the association between suffering a stroke and subsequent risk for suicide and suicidal ideation. We performed a careful MedLine, Excerpta Medica, PsycLit, PsycInfo, and Index Medicus search to identify all articles and book chapters in English. We initially selected 31 articles published between 1990 and 2011; however, only 16 studies were included in this review. All articles identified stroke as a significant risk factor for suicide, especially among depressed patients, providing further support for poststroke depression and suicidality. The results also indicated that there were differences between patients who developed acute-onset suicidal plans and those who reported delayed-onset plans, which occurred more frequently. Many of the stroke patients who died by suicide suffered from depression prior to their death, suggesting that being diagnosed with a mood disorder contributes to an increased risk of suicide in this population. Suffering from a stroke increases the risk of dying by suicide and developing suicidal ideation, particularly in young adults and women. The factors found to confer the most risk for suicidality were depression, previous mood disorder, prior history of stroke, and cognitive impairment.

Can bipolar disorder be viewed as a multi-system inflammatory disease?

BACKGROUND

Patients with bipolar disorder are known to be at high risk of premature death. Comorbid cardio-vascular diseases are a leading cause of excess mortality, well above the risk associated with suicide. In this review, we explore comorbid medical disorders, highlighting evidence that bipolar disorder can be effectively conceptualized as a multi-systemic inflammatory disease.

METHODS

We conducted a systematic PubMed search of all English-language articles recently published with bipolar disorder cross-referenced with the following terms: mortality and morbidity, cardio-vascular, diabetes, obesity, metabolic syndrome, inflammation, auto-antibody, retro-virus, stress, sleep and circadian rhythm.

RESULTS

Evidence gathered so far suggests that the multi-system involvement is present from the early stages, and therefore requires proactive screening and diagnostic procedures, as well as comprehensive treatment to reduce progression and premature mortality. Exploring the biological pathways that could account for the observed link show that dysregulated inflammatory background could be a common factor underlying cardio-vascular and bipolar disorders. Viewing bipolar disorder as a multi-system disorder should help us to re-conceptualize disorders of the mind as "disorders of the brain and the body".

LIMITATIONS

The current literature substantially lacks longitudinal and mechanistic studies, as well as comparison studies to explore the magnitude of the medical burden in bipolar disorder compared to major mood disorders as well as psychotic disorders. It is also necessary to look for subgroups of bipolar disorder based on their rates of comorbid disorders.

CONCLUSIONS

Comorbid medical illnesses in bipolar disorder might be viewed not only as the consequence of health behaviors and of psychotropic medications, but rather as an early manifestation of a multi-systemic disorder. Medical monitoring is thus a critical component of case assessment. Exploring common biological pathways of inflammation should help biomarkers discovery, ultimately leading to innovative diagnostic tools, new methods of prevention and personalized treatments.

Metabolic syndrome in bipolar disorders

To review the data with respect to prevalence and risk factors of metabolic syndrome (MetS) in bipolar disorder patients. Electronic searches were done in PUBMED, Google Scholar and Science direct. From 2004 to June 2011, 34 articles were found which reported on the prevalence of MetS. The sample size of these studies varied from 15 to 822 patients, and the rates of MetS vary widely from 16.7% to 67% across different studies. None of the sociodemographic variable has emerged as a consistent risk factor for MetS. Among the clinical variables longer duration of illness, bipolar disorder- I, with greater number of lifetime depressive and manic episodes, and with more severe and difficult-to-treat index affective episode, with depression at onset and during acute episodes, lower in severity of mania during the index episode, later age of onset at first manic episode, later age at first treatment for the first treatment for both phases, less healthy diet as rated by patients themselves, absence of physical activity and family history of diabetes mellitus have been reported as clinical risk factors of MetS. Data suggests that metabolic syndrome is fairly prevalent in bipolar disorder patients.

Vascular function is not impaired early in the course of bipolar disorder

OBJECTIVE

Individuals with bipolar disorder face a nearly two-fold increased risk of cardiovascular mortality relative to the general population. Endothelial dysfunction precedes cardiovascular disease and serves as a quantifiable phenotype for vasculopathy. We investigated whether individuals with bipolar disorder had poorer vascular function than controls using a case-control design.

METHODS

The sample of 54 participants included 27 individuals with bipolar disorder and 27 age- and gender-matched controls. Participants underwent an assessment of metabolic (weight, lipids, and insulin resistance) and vascular parameters (endothelial function using flow-mediated dilation; arterial stiffness using pulse wave velocity and estimated aortic pressure).

RESULTS

Participants had a mean age of 32 years and 41% were female. No significant differences were found between groups in endothelial function or arterial stiffness. Individuals with bipolar disorder demonstrated 100% greater insulin resistance.

CONCLUSION

The lack of clinically significant differences in vascular function in this young sample suggests any increased risk either occurs later in the course of illness or is largely due to behavioral risk factors, such as smoking, which was balanced between groups. Substantial insulin resistance is identifiable early in course of illness, perhaps secondary to treatment.

Affective temperamental profiles are associated with white matter hyperintensity and suicidal risk in patients with mood disorders

BACKGROUND

Patients with white matter hyperintensities (WMH) may be at higher risk for affective disorders and suicide. Affective temperaments may play a significant role in mood disorders. This study aimed to evaluate the eventual association between WMH, affective temperaments and suicidal behaviour in major affective disorder.

METHODS

A total of 318 patients with major affective disorders were consecutively admitted as psychiatric inpatient. A total of 247 were included and given, brain magnetic resonance imaging (MRI) and assessed with the Mini International Neuropsychiatric Interview (MINI), the Beck Hopelessness Scale (BHS), the Hamilton Depression Rating Scale (HDRS(17)), the Young Mania Rating Scale (YMRS) and the Temperament Evaluation of Memphis, Pisa, Paris and San Diego (TEMPS-A).

RESULTS

A total of 48% of patients had periventricular WMH (PWMH) and 39% of them had deep WMH (DWMH). Patients with higher dysthymia and lower hyperthymia (H-DCIA group) were more likely to have higher BHS scores (BHS≥9=77% vs. 52%; p>0.001), more WMH (46% vs. 29%; χ(2)(n=3)=9.90; p<0.05), higher MINI suicidal risk (54% vs. 42%; p<0.05), and more recent suicide attempts (24% vs. 14%; p<0.05), than patients with higher hyperthymia and lower dysthymia (H-H group).

LIMITATIONS

The small sample size did not allow the generalization of the present findings.

CONCLUSIONS

Differences among temperament groups measured by the TEMPS-A are associated with differences in their MRIs, indicating that different temperament profiles are associated with differences in the subcortical structures of the brain. The implications of the results were discussed.

The association between mood and anxiety disorders with vascular diseases and risk factors in a nationally representative sample

OBJECTIVE

To investigate the association between mood and anxiety disorders and vascular diseases after controlling for vascular disease risk factors.

METHODS

Using a nationally representative sample of adults (N=5692) from the National Comorbidity Survey-Replication (NCS-R), participants with mood disorders were hierarchically classified as having any lifetime history of mania, hypomania, or major depression. Anxiety disorders were also assessed. The reference group consisted of those without mental disorders. Vascular disease was determined by self-reported history of heart disease, heart attack, or stroke on the NCS-R survey. Vascular risk factors included diabetes, high blood pressure, and obesity.

RESULTS

In multivariate logistic regression models that controlled for obesity, high blood pressure, smoking and diabetes, vascular disease was associated with bipolar disorder in women [odds ratio (OR) 2.80, 95% confidence interval (CI) 1.63-4.80], and major depressive disorder in men (OR 1.85, 95% CI 1.17-2.92). Controlling for anxiety disorders reduced the associations in both men and women, and in fact, anxiety disorders were more strongly associated with vascular diseases in men, whereas bipolar disorder continued to be an important correlate of vascular disease in women.

CONCLUSION

These findings demonstrate the importance of evaluation of sex differences, mood disorder subtype and co-occurring anxiety disorders in assessing the association between mood disorders and vascular diseases. Future research should investigate potential biologic mechanisms for these associations in order to define potential targets for intervention.

Cardiovascular disease and hypertension among adults with bipolar I disorder in the United States

OBJECTIVE

Despite ample evidence of excess cardiovascular mortality in bipolar disorder (BD), few studies have demonstrated increased prevalence of cardiovascular disease (CVD) and/or hypertension (HTN) in BD. We therefore examined this topic in a representative epidemiologic sample.

METHOD

The 2001-2002 National Epidemiologic Survey on Alcohol and Related Conditions was used to determine whether prevalence of physician-diagnosed CVD and HTN is elevated among subjects with lifetime bipolar I disorder (BD-I), and whether CVD and HTN are prevalent at earlier ages among subjects with BD-I.

RESULTS

The age-, race-, and sex-adjusted prevalence of CVD was significantly greater among subjects with BD-I versus controls [odds ratio (OR) = 4.95, 95% confidence interval (CI): 4.27-5.75] and versus subjects with major depressive disorder [(MDD); OR =1.80, 95% CI: 1.52-2.14], as was the prevalence of HTN (OR = 2.38, 95% CI: 2.16-2.62 versus controls, OR = 1.44, 95% CI: 1.30-1.61 versus MDD; p < 0.0001 for all). Controlling additionally for marital status, education, income, obesity, smoking, anxiety disorders, and substance use disorders did not substantially alter these findings. The mean age of BD-I subjects with CVD and HTN was 14 and 13 years younger, respectively, than controls with CVD and HTN.

CONCLUSIONS

Adults with BD-I are at increased risk of CVD and HTN, prevalent over a decade earlier than non-BD adults. Strategies are needed to prevent excessive and premature cardiovascular burden in BD-I.

Manic/hypomanic symptom burden and cardiovascular mortality in bipolar disorder

OBJECTIVES

To compare the risk for cardiovascular mortality between bipolar I and bipolar II subtypes and determine correlates of cardiovascular mortality. Bipolar disorder conveys an increased risk of cardiovascular mortality.

METHODS

Participants with major affective disorders were recruited for the National Institute of Mental Health Collaborative Depression Study and followed prospectively for up to 25 years. A total of 435 participants met the diagnostic criteria for bipolar I (n = 288) or bipolar II (n = 147) disorder based on Research Diagnostic Criteria at intake and measures of psychiatric symptoms during follow-up. Diagnostic subtypes were contrasted by cardiovascular mortality risk using Cox proportional hazards regression. Affective symptom burden (the proportion of time with clinically significant manic/hypomanic or depressive symptoms) and treatment exposure were additionally included in the models.

RESULTS

Thirty-three participants died from cardiovascular causes. Participants with bipolar I disorder had more than double the cardiovascular mortality risk of those with bipolar II disorder, after controlling for age and gender (hazard ratio = 2.35, 95% Confidence Interval = 1.04-5.33; p = .04). The observed difference in cardiovascular mortality between these subtypes was at least partially confounded by the burden of clinically significant manic/hypomanic symptoms which predicted cardiovascular mortality independent of diagnosis, treatment exposure, age, gender, and cardiovascular risk factors at intake. Selective serotonin uptake inhibitors seemed protective although they were introduced late in follow-up. Depressive symptom burden was not related to cardiovascular mortality.

CONCLUSIONS

Participants with bipolar I disorder may face a greater risk of cardiovascular mortality than those with bipolar II disorder. This difference in cardiovascular mortality risk may reflect manic/hypomanic symptom burden.

Ghrelin, paraoxonase and arylesterase levels in depressive patients before and after citalopram treatment

OBJECTIVES

The purpose of this study was to examine alterations in lipid profiles and in the serum concentrations of acylated and desacylated ghrelin, paraoxonase and arylesterase in psychiatric patients before and after treatment with 40 mg citalopram daily for 3 months.

DESIGN AND METHODS

Samples were collected from 22 healthy controls and 24 psychiatric patients before and after citalopram treatment. Blood levels of acylated and desacylated ghrelin were measured by radioimmunoassay. Paraoxonase and arylesterase activities were determined spectrophotometrically. Lipid parameters were measured on the OLYMPUS-AU400.

RESULTS

It was found that the levels of acylated, desacylated ghrelin, paraoxonase arylesterase, total cholesterol and triglyceride were lower in depressive patients before citalopram treatment than in the control group. Those parameters were not restored after citalopram treatment except for the arylesterase level.

CONCLUSION

Decreased PON1 and ghrelin levels as well as fluctuations in lipid profiles may be involved in the etiology of depressive disorders.

A prospective observational study of obesity, body composition, and insulin resistance in 18 women with bipolar disorder and 17 matched control subjects

OBJECTIVE

Patients with bipolar disorder are at increased risk for diabetes and cardiovascular diseases, possibly because of more severe insulin resistance. The primary purpose of this study was to determine whether insulin resistance is characteristic of bipolar disorder.

METHOD

The Homeostatic Model Assessment of Insulin Resistance (HOMA-IR) was performed in 18 women with DSM-IV bipolar I disorder, and results were compared to those of 17 matched controls. Other risk factors were compared, including blood pressure, blood lipids, and abdominal obesity by computed tomography (CT). Additionally, substrate utilization was measured by indirect calorimetry, and free-living energy expenditure was estimated using wearable activity monitors. All data were collected between February 2006 and December 2007.

RESULTS

Patients with bipolar disorder were no more insulin resistant than controls after accounting for generalized obesity (mean +/- SEM HOMA-IR = 2.7 +/- 0.7 vs. 2.5 +/- 0.7, for patients and controls, respectively; p = .79). Although blood lipid profiles were generally similar in patients and controls, obese patients had higher blood pressure than controls. Obese patients had more mean +/- SEM total abdominal fat (718.1 +/- 35.1 cm² vs. 607.4 +/- 33.6 cm²; p = .04), and tended (p = .06) to have more visceral abdominal fat. Patients oxidized 13% less fat during resting conditions, although their resting metabolic rate was similar to that of controls.

CONCLUSION

Women with bipolar I disorder were no more insulin resistant than matched controls after accounting for their level of obesity. However, they were more hypertensive, had higher amounts of abdominal obesity, and had reduced rates of fat oxidation. Therefore, women with bipolar I disorder may be at a heightened risk for future weight gain and concomitant risk for diabetes and cardiovascular disease.

Increased rates of white matter hyperintensities in late-onset bipolar disorder

OBJECTIVES

Magnetic resonance imaging (MRI) studies have reported an increased frequency of white matter hyperintensities (WMH) in association with late-onset (LO) depression, and this has supported the notion that vascular-related mechanisms may be implicated in the pathophysiology of LO mood disorders. Recent clinical studies have also suggested a link between LO bipolar disorder (LO-BD) and cerebrovascular risk factors, but this has been little investigated with neuroimaging techniques. In order to ascertain whether there could be a specific association between WMH and LO-BD, we directly compared WMH rates between LO-BD subjects (illness onset >or= 60 years), early-onset BD subjects (EO-BD, illness onset <60 years), and elderly healthy volunteers.

METHODS

T2-weighted MRI data were acquired in LO-BD subjects (n = 10, age = 73.60 +/- 4.09), EO-BD patients (n = 49, age = 67.78 +/- 4.44), and healthy subjects (n = 24, age = 69.00 +/- 7.22). WMH rates were assessed using the Scheltens scale.

RESULTS

There was a greater prevalence of WMH in LO-BD patients relative to the two other groups in the deep parietal region (p = 0.018) and basal ganglia (p < 0.045). When between-group comparisons of mean WMH scores were conducted taking account of age differences (ANCOVA), there were more severe scores in LO-BD patients relative to the two other groups in deep frontal and parietal regions, as well as in the putamen (p < 0.05).

CONCLUSIONS

Our results provide empirical support to the proposed link between vascular risk factors and LO-BD. If extended in future studies with larger samples, these findings may help to clarify the pathophysiological distinctions between bipolar disorder emerging at early and late stages of life.

Relative risk of diabetes, dyslipidaemia, hypertension and the metabolic syndrome in people with severe mental illnesses: systematic review and metaanalysis

BACKGROUND

Severe mental illnesses (SMI) may be independently associated with cardiovascular risk factors and the metabolic syndrome. We aimed to systematically assess studies that compared diabetes, dyslipidaemia, hypertension and metabolic syndrome in people with and without SMI.

METHODS

We systematically searched MEDLINE, EMBASE, CINAHL & PsycINFO. We hand searched reference lists of key articles. We employed three search main themes: SMI, cardiovascular disease, and each cardiovascular risk factor. We selected cross-sectional, case control, cohort or intervention studies comparing one or more risk factor in both SMI and a reference group. We excluded studies without any reference group. We extracted data on: study design, cardiovascular risk factor(s) and their measurement, diagnosis of SMI, study setting, sampling method, nature of comparison group and data on key risk factors.

RESULTS

Of 14592 citations, 134 papers met criteria and 36 were finally included. 26 reported on diabetes, 12 hypertension, 11 dyslipidaemia, and 4 metabolic syndrome. Most studies were cross sectional, small and several lacked comparison data suitable for extraction. Meta-analysis was possible for diabetes, cholesterol and hypertension; revealing a pooled risk ratio of 1.70 (1.21 to 2.37) for diabetes and 1.11 (0.91 to 1.35) of hypertension. Restricting SMI to schizophreniform illnesses yielded a pooled risk ratio for diabetes of 1.87 (1.68 to 2.09). Total cholesterol was not higher in people with SMI (Standardized Mean Difference -0.10 (-0.55 to 0.36)) and there were inconsistent data on HDL, LDL and triglycerides with some, but not all, reporting lower levels of HDL cholesterol and raised triglyceride levels. Metabolic syndrome appeared more common in SMI.

CONCLUSION

Diabetes (but not hypertension) is more common in SMI. Data on other risk factors were limited by poor quality or inconsistent research findings, but a small number of studies show greater prevalence of the metabolic syndrome in SMI.

Medical burden in late-life bipolar and major depressive disorders

BACKGROUND

Elderly patients with bipolar disorder have been found to have higher mortality than those with major depressive disorder. The authors compare medical burden in elderly patients with bipolar disorder with that in those with major depressive disorder.

METHODS

Fifty-four patients with bipolar I or II disorder who were 60 years of age and older were equated 1-to-2 to 108 patients with nonpsychotic, major depressive disorder according to age, sex, race, and lifetime duration of mood disorder illness. Variables examined included the following: Cumulative Illness Rating Scale for Geriatrics (CIRS-G) total scores, body mass index (BMI), and CIRS-G subscale scores.

RESULTS

Compared with patients with major depressive disorder, patients with bipolar disorder had similar levels of general medical comorbidity on the CIRS-G total score and number of systems affected but higher BMI. After controlling for multiple comparisons, the endocrine/metabolic and respiratory subscale scores on the CIRS-G were higher for patients with bipolar disorder.

CONCLUSION

Although overall medical burden appears comparable in elderly patients with bipolar and those with major depressive disorder, patients with bipolar disorder have higher BMI and greater burden of endocrine/metabolic and respiratory disease.

Health care utilization and receipt of cholesterol testing by veterans with and those without mental illness

OBJECTIVE

We examined the relationship between mental illness, health care utilization and rates of cholesterol testing.

METHODS

We conducted a retrospective cohort study using Veterans Affairs (VA) administrative data on 64,490 United States veterans who used VA New England Health Care System outpatient services between January 1998 and June 2001. A total of 10,100 veterans (15.7%) had a mental illness treated with medication. We examined the interaction between mental illness and outpatient service utilization with respect to the likelihood of receiving a cholesterol test, adjusting for major demographic and clinical covariates.

RESULTS

Among veterans using VA outpatient services infrequently, those with mental illness were less likely than non-mentally ill control subjects to receive a cholesterol test during the study period (first quartile adjusted OR=0.45, 95% CI=0.37-0.54; second quartile adjusted OR=0.50, 95% CI=0.45-0.57). Mentally ill subjects with more frequent utilization of VA services were as likely as (third quartile adjusted OR=1.01, 95% CI=0.91-1.13) or more likely than (fourth quartile adjusted OR=2.73, 95% CI=2.46-3.03) non-mentally ill subjects to receive cholesterol testing.

CONCLUSIONS

Mental illness was associated with a lower likelihood of cholesterol testing in subjects who used fewer VA outpatient services. The observed disparity attenuated at higher levels of service utilization.

Metabolism, lifestyle and bipolar affective disorder

Lifestyle, illness and treatment factors in people with bipolar disorder (BD) may confer additional risk of morbidity and mortality to the increasing rates of obesity, metabolic syndrome, diabetes mellitus and cardiovascular mortality in the general population.The aim of this review is to examine whether the risk of obesity and related morbidity and mortality are raised in BD, and possible contributory effects of lifestyle, illness and treatment factors to this risk.Systematic search of Medline and Cochrane Collaboration for relevant studies followed by a critical review of literature was carried out.Mortality from cardiovascular causes and pulmonary embolism (standardized mortality ratio approximately 2.0), and morbidity from obesity and type 2 diabetes mellitus may be increased in BD compared to the general population. Reduced exercise and poor diet, frequent depressive episodes, comorbidity with substance misuse and poor quality general medical care contribute to the additional risk of these medical problems in people with BD. There is no evidence that patients with BD are more sensitive than other patients to weight gain and medical problems associated with long-term use of psychotropic medication; in fact long-term treatment with lithium, antipsychotics and tricyclic antidepressants may reduce overall mortality. Psychiatrists, general practitioners and other health professionals should work together to systematically assess and manage weight gain and related medical problems to reduce the morbidity and mortality associated with obesity in BD. There is insufficient evidence to associate any of these factors with specific drug treatments. More research is required to understand how BD changes the risk for physical health comorbidity.

Metabolic syndrome in bipolar disorder: findings from the Bipolar Disorder Center for Pennsylvanians

OBJECTIVE

This study sought to evaluate the presence of the metabolic syndrome in a group of 171 patients with bipolar disorder who were consecutively recruited in the Bipolar Disorder Center for Pennsylvanians.

METHODS

Data were collected from participants entering the Bipolar Disorder Center for Pennsylvanians protocol between 2003 and 2004. The study focused on the presence of the metabolic syndrome, as defined by the National Cholesterol Education Program Expert Panel on Detection, Evaluation And Treatment of High Blood Cholesterol in Adults (NCEP ATP III).

RESULTS

Thirty percent of the sample met the NCEP ATP III criterion for the metabolic syndrome, 49% met the criterion for abdominal obesity, 41% met the criterion for hypertriglyceridemia, 48% met the criterion for hypertriglyceridemia or were on a cholesterol-lowering medication, 23% met the criterion for low high-density lipoprotein cholesterol, 39% met the criterion for hypertension and 8% met the criterion for high fasting glucose or antidiabetic medication use. Patients with the metabolic syndrome and patients endorsing the obesity criterion were more likely (p = 0.05 and p = 0.004, respectively) to report a lifetime history of suicide attempt/s.

CONCLUSIONS

The prevalence of the metabolic syndrome in patients with bipolar disorder is alarmingly high, as it is for the general population. The prevalence of obesity is even higher than the already very high prevalence that has been estimated for the US general population. Our findings are a reason for concern, considering the difficulty in implementing prevention and treatment programs in the bipolar population. We strongly support the development and testing of interventions specifically designed for preventing and treating the metabolic syndrome and its components in patients with bipolar disorder.

White matter hyperintensities in subjects with bipolar disorder

There have been divergent reports on the prevalence and severity of white matter hyperintensities (WMH) on brain magnetic resonance (MR) images in subjects with bipolar disorder. In the present study, evaluations were made on the prevalence and severity of WMH in subjects with bipolar disorder using contiguous 3-mm thick MR slices as well as fluid attenuated inversion recovery (FLAIR) images. A detailed WMH rating system was employed to assess these WMH. A total of 43 bipolar patients, as diagnosed by the Structured Clinical Interview from the Diagnostic and Statistical Manual-IV (SCID-IV), and 39 healthy comparison subjects were scanned using a 1.5-T whole body GE magnetic resonance scanner. WMH were assessed with a modified composite version of the Fazekas' and Coffey's rating scales to detect less severe WMH. Periventricular and subcortical WMH were coded separately. Subjects with bipolar disorder had greater prevalence of WMH abnormalities than comparison subjects (Bipolar, grade 1 = 11.6%, grade 2 = 9.3%, grade 3 = 7.0%; Comparison, grade 1 = 5.1%, grade 2 = 2.6%, grade 3 = 0%). This difference is mainly due to the differences in deep WMH (Bipolar, grade 1 = 14.0%, grade 2 = 14.0%; Comparison, grade 1 = 7.7%, grade 2 = 0%). The current study confirms the higher prevalence of WMH in subjects with bipolar disorder. Differences of small-sized WMH abnormalities between groups were successfully detected using a large number of bipolar subjects and thinner sliced MR images with FLAIR.

Serum lipid concentrations in Croatian veterans with post-traumatic stress disorder,post-traumatic stress disorder comorbid with major depressive disorder,or major depressive disorder

The aim of this study was to assess eventual differences in serum cholesterol, low-density lipoprotein cholesterol (LDL-C), high-density lipoprotein cholesterol (HDL-C), triglycerides, LDL-C/HDL-C ratio between veterans with combat-related post-traumatic stress disorder (PTSD) only or comorbid with major depressive disorder (MDD), veterans with combat experiences with MDD, and healthy control group. PTSD and/ or MDD were diagnose according to structured clinical interview based on DSM-IV criteria. Additional criteria to diagnose PTSD were Clinician Administered PTSD Scale (CAPS), and to diagnose MDD Montgomery-Asberg Depression Rating Scale (MADRAS). Serum lipid concentrations were determined by using the enzyme-assay method. Veterans with combat-related PTSD as well as veterans with combat-related PTSD comorbid with MDD showed significantly higher concentrations of cholesterol (F=9.858, p<0.01), triglycerides (F=10.112, p<0.01), LDL-C (F=11.145, p<0.01), and LDL-C/HDL-C ratio (F=8.346, p<0.01) vs. veterans with MDD or healthy control group. Contrary healthy control group and veterans with MDD showed significantly higher concentrations of HDL-C (F=8.421, p<0.01), vs. veterans with PTSD or PTSD comorbid with MDD. In conclusion, there are no differences in serum lipid concentrations between veterans with combat-related PTSD and PTSD comorbid with MDD, but they have higher lipid concentrations than veterans with MDD or healthy control subjects.

Cigarette smoking in a student sample: neurocognitive and clinical correlates

Why do adolescents begin to smoke in the face of profound health risks and aggressive antismoking campaigns? The present study tested predictions based on two theoretical models of tobacco use in young adults: (1) the self-medication model; and (2) the orbitofrontal/disinhibition model. Investigators speculated that a significant number of smokers were self-medicating since nicotine possesses mood-elevating and hedonic properties. The self-medication model predicts that smokers will demonstrate increased rates of psychopathology relative to nonsmokers. Similarly, researchers have suggested that individuals with attention-deficit/hyperactivity disorder (ADHD) employ nicotine to enhance cognitive function. The ADHD/self-medication model predicts that smokers will perform poorly on tests of executive function and report a greater number of ADHD symptoms. A considerable body of research indicates that tobacco use is associated with several related personality traits including extraversion, impulsivity, risk taking, sensation seeking, novelty seeking, and antisocial personality features. Antisocial behavior and related personality traits as well as tobacco use may reflect, in part, a failure to effectively employ reward and punishment cues to guide behavior. This failure may reflect orbitofrontal dysfunction. The orbitofrontal/disinhibition model predicts that smokers will perform poorly on neurocognitive tasks considered sensitive to orbitofrontal dysfunction and will obtain significantly higher scores on measures of behavioral disinhibition and antisocial personality relative to nonsmokers. To test these predictions, we administered a battery of neuropsychological tests, clinical scales, and personality questionnaires to university student smokers and nonsmokers. Results did not support the self-medication model or the ADHD/self-medication model; however, findings were consistent with the orbitofrontal/disinhibition model.

No evidence for an association between serum cholesterol and the course of depression and suicidality

In a number of previous reports, an association of altered, in most cases lower, serum cholesterol levels with depression, suicidal ideation and current or past suicidal behavior has been suggested. In this investigation, the course of serum cholesterol concentrations was measured in depressed patients during treatment. Ninety-two inpatients with a major depressive episode were included. Serum lipid concentrations were assessed at admission, after 1 week and after 4 weeks of antidepressant treatment. Degrees of depression and suicidality were measured with the Hamilton Depression Rating Scale. Although there was a significant reduction in depression and suicidality scores, neither a significant change in serum cholesterol levels nor a correlation between cholesterol levels and clinical improvement was found. Further, there were no significant differences in lipid levels between patients with and without a history of attempted suicide. In patients who had used a violent method, there was a trend for lower total cholesterol levels compared to those who had poisoned themselves. The results of this study do not support the hypothesis of an association of serum cholesterol with the course of depression and suicidal ideation. Cholesterol levels do not appear to be an appropriate biological marker for suicidality during the first 4 weeks of treatment in patients with a major depressive episode.

Biological predictors of treatment response in affective illness

Attempts to identify biological response predictors generally have met with limited success, particularly where the goal is to develop clinically useful indices. This article reviews the biological approaches to predicting treatment response, beginning with neuroendocrine studies and electroencephalogram analysis and concluding with structural and functional neuroimaging. The article describes the designs of typical studies to aid in interpreting their results and concludes by addressing some of the problems and limitations associated with these approaches and suggesting future directions for this research.

Serum leptin and cholesterol levels in patients with bipolar disorder

Low cholesterol levels have been reported in patients with manic episodes. Leptin seems to be strongly associated with lipid metabolism. In the present study, therefore, serum total cholesterol and leptin levels were compared in 16 patients with manic episodes, 16 with bipolar I disorder in full remission and 16 healthy controls. The serum total cholesterol and leptin levels were measured and Young Mania Rating (YMRS) and Hamilton Depression Rating Scales (HAM-D) were administered for each subject. Both the patients with manic episodes and the patients with bipolar I disorder in full remission had markedly low serum cholesterol and leptin levels compared with controls, though the difference was more obvious in patients with manic episodes. In addition, there were negative correlations between YMRS scores and serum cholesterol or leptin levels in the patients with manic episodes. Our results suggest that the patients with manic episodes and those with bipolar I disorder in full remission seem to be associated with decreased serum cholesterol and leptin levels.

Neuroimaging in bipolar disorder: what have we learned?

New technologies are offering increasingly powerful means to obtain structural, chemical, and functional images of the brain during life, often without the use of ionizing radiation. Bipolar disorder, with its clear physiologic features, would appear to be a prime candidate for the application of current brain imaging; however, only a modest number of studies have been reported to date, and most studies have small sample sizes and heterogeneous subject groups. Nonetheless, there are a few consistent findings among these studies, including the following: 1) Structural imaging studies suggest an increased number of white matter hyperintensities in patients with bipolar disorder. These may be lesions unique to bipolar disorder and its treatment, or related to cardiovascular risk factors, which are more common in bipolar patients. Decreased cerebellar size and anomalies of cerebellar blood volume have also been reported. Increased sulcal prominence and enlargement of the lateral and third ventricles are less consistently observed findings. 2) Spectroscopic imaging suggests abnormalities of metabolism of choline-containing compounds in symptomatically ill bipolar patients and, possibly, treatment-induced changes in choline- and myoinositol-containing compounds. Each of these groups of metabolites serves as a component of membrane phospholipids and cellular second-messenger cycles. 3) Metabolic and blood flow studies provide evidence for decreased activity of the prefrontal cortex (PFC) in bipolar patients during depression. It is not clear if these changes are restricted to particular subregions of the PFC, nor if they are reversed with mania. No single pathophysiologic mechanism yet explains these findings, although all might be due to regional alterations in cellular activity and metabolism or changes in cell membrane composition and turnover. The development of imaging technologies has far outpaced their use in bipolar disorder. The promise of future studies is great, with more powerful magnetic resonance scanners, additional ligands for positron emission tomography and single photon emission computed tomography imaging, and improved image generation and processing already available.

Relation between myocardial infarction, depression, hostility, and death

OBJECTIVE

To examine the independent impact of major depression and hostility on mortality rate at 6 months and 12 months after discharge from the hospital in patients with a myocardial infarction.

METHOD

Three hundred thirty-one patients were prospectively evaluated for depression with a modified version of the National Institute of Mental Health Diagnostic Interview Schedule for major depressive episode. The Cook Medley Hostility Scale data were analyzed by chi(2) procedures for nominal and categoric data, and Student t test was used for continuous data types.

RESULTS

Depression was a significant predictor of death at 12 months (P =. 04) but not at 6 months (P =.08). Hostility was not found to be a predictor of death at 6 months or 12 months.

CONCLUSIONS

Major depression in patients hospitalized after myocardial infarction is a significant univariable predictor of death at 12 months, although it was not a statistically significant predictor after adjusting for other variables. Hostility is not a predictor of death. Prospective studies are needed to determine the impact of aggressive treatment of depression on post-myocardial infarction survival.

Elevated lipid levels in Vietnam veterans with chronic posttraumatic stress disorder

BACKGROUND

Elevated cholesterol levels have been reported in panic disorder and anger attacks, but not major depression. No data have been reported in posttraumatic stress disorder (PTSD).

METHODS

Seventy-three male Vietnam veterans with chronic (PTSD) had serum lipid screening upon entry to a 90-day inpatient program.

RESULTS

Elevated cholesterol, low-density lipoprotein, triglycerides, and reduced high-density lipoprotein, were frequent in Vietnam veterans with chronic PTSD and are significant risk factors for coronary artery disease.

CONCLUSIONS

Routine lipid screening may be warranted in this at-risk population. Altered lipid levels may result from activation of the noradrenergic system.

Neuroimaging in psychiatry

The promise of neuroimaging as an aid to diagnosis is discussed, and findings from the most accessible imaging techniques are reviewed. In addition, some of the earliest findings from functional MR imaging and other technologies are presented with several illustrations. Strategies for interpretation, critique of imaging techniques, and review of major findings for brain injury, mood, anxiety, schizophrenia, and attention deficit disorders are offered. Examples of normal and pathologic images illustrate actual cases and examples of the newer imaging technologies.

Cholesterol and mental disorder

BACKGROUND

Cholesterol plays an important part in cellular structure and function and changes in serum levels may affect neurotransmission in the central nervous system.

METHOD

A MEDLINE literature search was made covering the period 1990-95 with systematic searching of citations from the articles identified. Representative articles were selected, focusing on those aspects which had not been thoroughly reviewed elsewhere, namely suicidal ideation, depression, personality and schizophrenia.

RESULTS

Lowering cholesterol levels have been associated with an increase in violent deaths in cardiovascular primary prevention studies. However, altered cholesterol levels have also been reported in relation to other psychiatric disorders.

CONCLUSION

There is substantial evidence that serum cholesterol levels may be associated with variations in mental state or personality. Further work is needed to clarify this and to elucidate the mechanisms involved.

Cardiovascular variability in major depressive disorder and effects of imipramine or mirtazapine (Org 3770)

Spectral analysis of fluctuations in heart rate (HR) and blood pressure (BP) was applied to assess sympathetic and parasympathetic cardiovascular control mechanisms in patients with unipolar affective disorder before and after treatment with imipramine (IMI) or mirtazapine (MIR). In a double-blind randomized study, 10 patients received treatment with IMI and 10 patients received treatment with MIR. Cardiovascular parameters were studied before and after 4 weeks of treatment: HR and BP (Finapres) were recorded continuously during supine rest (SR) and orthostatic challenge (OC; 60-degrees head-up tilting). During SR and OC, power spectra were calculated for HR and systolic BP. Spectral density was assessed for three frequency bands: low (0.02-0.06 Hz), mid (0.07-0.14 Hz), and high (0.15-0.50 Hz). Before treatment, the depressed patients (N = 20) differed from age-matched controls (N = 20) only in their response to OC: the depressed patients showed more suppression of HR variability (both mid- and high-frequency band fluctuations), indicating stronger vagal inhibition, and a reduced increase of BP variability (mid-frequency band fluctuations), indicating reduced sympathetic activation. After 4 weeks of treatment, patients treated with either antidepressant drug showed significant changes of HR (increase) and HR variability (decrease) during SR and OC; the suppression of mid- and high-frequency fluctuations of HR was larger for IMI than for MIR. The increase in HR and decrease in HR variability may be attributed to the anticholinergic properties of IMI (strong) and MIR (weak), resulting in cardiac vagal inhibition. Whereas MIR had no effect on BP or BP variability, IMI specifically reduced mid-frequency band fluctuations of BP as the result of a suppression of central sympathetic activity. Our data confirm and extend previous observations on the presence of autonomic dysfunctions in unmedicated depressed patients: spectral analysis of HR and BP fluctuations suggested that both parasympathetic and sympathetic mechanisms are involved, specifically during OC. The preexisting autonomic cardiovascular dysfunctions were not normalized by antidepressant drugs. In fact, some of the components of the cardiovascular autonomic dysfunction were further aggravated, depending on the pharmacologic profile of the drug under investigation.

Cardiovascular risk factors in depression. The role of anxiety and anger

The authors hypothesized that patients with anxious or hostile depression may have a greater risk of mortality from coronary artery disease (CAD) than other depressed patients and therefore proceeded to assess the possible relationship between CAD risk factors and anger and anxiety in a sample of 138 depressed outpatients. The authors observed that increased anxiety scores were associated with higher cholesterol levels and with prolonged QTc intervals. Similarly, the patients with anger attacks tended to have higher cholesterol levels compared with the patients without these attacks. The study's findings partially support the authors' hypothesis that hostile or anxious depressed patients are at greater risk for CAD than other depressed patients.

Depression and suicide on Gotland. An intensive study of all suicides before and after a depression-training programme for general practitioners

In 1983 and 1984, the Swedish Committee for the Prevention and Treatment of Depression (PTD) organised a postgraduate training programme on the diagnosis and treatment to all the general practitioners on Gotland, Sweden. In the following years, the frequency of suicide and inpatient care for depression decreased significantly, as well as the frequency of sick leave for depression. The results of the Gotland study have provided evidence for the view that early recognition and adequate treatment of depression is one essential method of suicide prevention (Rutz et al., 1989; Rutz et al., 1992). A detailed retrospective clinical analysis, of all 115 consecutive suicide victims on Gotland between 1981 and 1992 presented in this study, showed that male gender and violent methods were overrepresented. 50 suicides had a DSM-III-R axis I diagnosis and half of them (n = 25) had primary major depression. Bipolar II disorder was relatively overrepresented in this sample. After the PTD programme, the proportion of depressive suicides was significantly lower than before. This finding strongly suggests that the significant decrease in the suicide rate after the PTD programme is a direct result of the robust decrease in depressive suicides of the area served by trained GPs. The practical importance of this finding is briefly discussed.

Cholesterol and psychological well-being

The debate about possible adverse effects associated with low or lowered serum cholesterol has raised important scientific questions concerning the links between lipids and behaviour. One of the most unexpected findings has been an association between cholesterol-lowering treatment and accidental death. A similar association has also emerged among the prospective cohort studies, with higher-than-expected numbers of suicide deaths in the lowest cholesterol groups. These observations have prompted speculation that behavioural or emotional disturbances could be part of the process linking lipids and accidental death. In this paper, the epidemiological literature is reviewed briefly, then the evidence for depression as a mediating condition is discussed. Two conclusions are drawn from this review of the literature. One is that understanding the relationship between the biology of lipids and the psychobiology of mood is demonstrably an important scientific and public health issue. The second is that the introduction of new treatments or preventive programmes should include a careful evaluation of the psychological as well as the physical effects.

Hypocholesterolemia and affective disorders

The authors' specific aim was to assess hypocholesterolemia in 203 patients hospitalized because of affective disorders (depression, bipolar disorder, and schizoaffective disorder) compared with 1,595 self-referred subjects in an urban supermarket screening and with 11,864 subjects in the National Health and Nutrition Examination Survey II, a national probability sample. Low plasma cholesterol concentrations (< 160 mg/dL) were much more common in patients with affective disorders (20%) than in urban supermarket screenees (4%, P < or = 0.001) or in the National Health and Nutrition Examination Survey II subjects (10%, P < or = 0.001). When paired with supermarket screenees by age and sex, patients with affective disorders had much lower plasma total cholesterol (P < or = 0.0002), low-density lipoprotein cholesterol (P < or = 0.001), and high-density lipoprotein cholesterol (P < or = 0.0001), and higher triglyceride concentrations (P < or = 0.03). Neither the severity of the affective disorders nor severity-age interactions were associated with plasma cholesterol concentrations (P > 0.1); age and plasma cholesterol were positively associated (P = 0.01). None of the psychoactive drugs had a significant independent association with the patients' low-density lipoprotein cholesterol. Plasma cholesterol in patients hospitalized with affective disorders is shifted markedly downward toward hypocholesterolemic concentrations (< 160 mg/dL). There is no evidence that low plasma cholesterol could cause or worsen affective disorders.

Improvement in symptoms of depression and in an index of life stressors accompany treatment of severe hypertriglyceridemia

In 14 men and nine women referred because of severe primary hypertriglyceridemia, our specific aim in a 54-week single-blind treatment (Rx) period was to determine whether triglyceride (TG) lowering with a Type V diet and Lopid would lead to improvement in symptoms of depression, improvement in an index of life stressors, change in locus of control index, and improved cognition, as serially tested by Beck (BDI), Hassles (HAS) and HAS intensity indices, Locus of Control index, and the Folstein Mini-Mental status exam. On Rx, median TG fell 47%, total cholesterol (TC) fell 15%, and HDLC rose 19% (all p < or = 0.001). BDI fell at all nine Rx visits (p < or = 0.001), a major reduction in a test of depressive symptoms. The HAS score also fell at all nine visits (p < or = 0.05 - < or = 0.001). Comparing pre-Rx baseline BDI vs BDI at 30 and 54 weeks on Rx, there was a major shift towards absence or amelioration of depressive symptoms (chi 2= 5.9, p = 0.016). On Rx, the greater the percent reduction in TG, the greater the percent fall in BDI (r = 0.47, p < or = 0.05); the greater the percent reduction in TC, the greater the percent fall in HAS (r = 0.41, p < or = 0.05). Improvement in the BDI and HAS accompanied treatment of severe hypertriglyceridemia, possibly by virtue of improved cerebral perfusion and oxygenation. There may be a reversible causal relationship between high TG and symptoms of depression.

Psychiatric morbidity during the early phase of coronary care for myocardial infarction: association with cardiac diagnosis and outcome

We evaluated the association of psychiatric morbidity during the early phase of admission to a coronary care unit with cardiac diagnosis and subsequent morbidity. Ninety-two patients admitted for the first time for presumed myocardial infarction were evaluated within 48 hours of hospitalization. Anxiety and depressive symptoms and cognitive impairment were rated. Data were collected on cardiac diagnosis and morbidity. Three and 12 months after hospitalization, cardiac morbidity, psychiatric symptoms and psychosocial morbidity were assessed.

Occurrence of subcortical hyperintensities in elderly subjects with mania

In a retrospective study, brain magnetic resonance images of 12 patients with the onset of manic symptoms after the age of 50 years were compared to age- and sex-matched control subjects for the incidence, size, and location of subcortical hyperintensities. Compared with controls, the patients demonstrated a significantly greater number of large subcortical hyperintensities, particularly in the middle third of the brain parenchyma. The lesions occurred with equal frequency in the right and left hemisphere. There were no differences between the two groups in the size of the ventricles or the presence of periventricular hyperintensities.

Relationships between health behaviour and depression in the aged

Relationships between the occurrence of depression, drinking alcohol, performing physical exercise and smoking were explored in Finns aged 60 years or over. A multivariate analysis based on log-linear models showed a positive relationship between higher occurrence of depression, smoking and no regular physical exercise in men, and between higher occurrence of depression, not smoking, abstaining and no regular physical exercise in women. We suggest that factors related to personality traits and coping styles explain both the relationship between depression and smoking, and sex differences in smoking habits; the relaxing and euphoric effect of a small amount of alcohol may explain the association between lower occurrence of depression and non-abstaining in women. The association between higher occurrence of depression and no regular physical exercise may reflect either the cause of depression, or the effects of depressive disorder.