Influence of light exposure during early life on the age of onset of bipolar disorder.

BACKGROUND: Environmental conditions early in life may imprint the circadian system and influence response to environmental signals later in life. We previously determined that a large springtime increase in solar insolation at the onset location was associated with a younger age of onset of bipolar disorder, especially with a family history of mood disorders. This study investigated whether the hours of daylight at the birth location affected this association. METHODS: Data collected previously at 36 collection sites from 23 countries were available for 3896 patients with bipolar I disorder, born between latitudes of 1.4 N and 70.7 N, and 1.2 S and 41.3 S. Hours of daylight variables for the birth location were added to a base model to assess the relation between the age of onset and solar insolation. RESULTS: More hours of daylight at the birth location during early life was associated with an older age of onset, suggesting reduced vulnerability to the future circadian challenge of the springtime increase in solar insolation at the onset location. Addition of the minimum of the average monthly hours of daylight during the first 3 months of life improved the base model, with a significant positive relationship to age of onset. Coefficients for all other variables remained stable, significant and consistent with the base model. CONCLUSIONS: Light exposure during early life may have important consequences for those who are susceptible to bipolar disorder, especially at latitudes with little natural light in winter. This study indirectly supports the concept that early life exposure to light may affect the long term adaptability to respond to a circadian challenge later in life.

Relationship between sunlight and the age of onset of bipolar disorder: an international multisite study.

BACKGROUND: The onset of bipolar disorder is influenced by the interaction of genetic and environmental factors. We previously found that a large increase in sunlight in springtime was associated with a lower age of onset. This study extends this analysis with more collection sites at diverse locations, and includes family history and polarity of first episode. METHODS: Data from 4037 patients with bipolar I disorder were collected at 36 collection sites in 23 countries at latitudes spanning 3.2 north (N) to 63.4 N and 38.2 south (S) of the equator. The age of onset of the first episode, onset location, family history of mood disorders, and polarity of first episode were obtained retrospectively, from patient records and/or direct interview. Solar insolation data were obtained for the onset locations. RESULTS: There was a large, significant inverse relationship between maximum monthly increase in solar insolation and age of onset, controlling for the country median age and the birth cohort. The effect was reduced by half if there was no family history. The maximum monthly increase in solar insolation occurred in springtime. The effect was one-third smaller for initial episodes of mania than depression. The largest maximum monthly increase in solar insolation occurred in northern latitudes such as Oslo, Norway, and warm and dry areas such as Los Angeles, California. LIMITATIONS: Recall bias for onset and family history data. CONCLUSIONS: A large springtime increase in sunlight may have an important influence on the onset of bipolar disorder, especially in those with a family history of mood disorders.

No differences between drug naive and drug experienced unipolar depressed patients in terms of neurobiological testing: a cross sectional study.

Successful antidepressant treatment has been associated with concomitant changes in brain function, consolidated as long as treatment is continued and remission is preserved. The present study aimed at assessing the impact of prior antidepressant treatment on brain function in currently depressed but unmedicated individuals by investigating for any differences between antidepressant-naïve vs. antidepressant-experienced subjects. Fifty right-handed patients (22 medication-naïve vs. 28 medication-experienced), suffering from major depression participated in the study. They all underwent a standardised clinical interview and psychometric assessment combined with neurobiological tests (brain SPECT, Dexamethasone Suppression Test, Dexfenfluramine Challenge Test, electro-oculogram, flash-electroretinogram and flash-visual evoked potentials and pattern-reversal visual evoked potentials). No significant differences between medication-naïve and medication-experienced depressed subjects were found in terms of the neurobiological markers assessed, after controlling for age, sex, age at onset, number of depressive episodes, depression subtype (melancholic, atypical or undifferentiated) and severity of current episode. Unmedicated currently depressed patients, no matter their previous exposure to antidepressants, show similar changes in brain function. This does not necessarily mean that antidepressants do not have a long term effect on brain physiology, since not all patients relapse. However, it seems that those patients who relapse after stopping medication, seem to 'regress' to an 'as if never medicated' state, with regard to brain function. These findings might suggest that continuous maintenance treatment with antidepressants is essential for patients at high risk to relapse. Alternatively, they might suggest that our methodology assesses only a shallow and mainly state part of the pathophysiology of depression.

Nonsensory hallucinations or obsessive symptoms?: a diagnostic and therapeutic dilemma in a psychotic patient.

The study of this particular case provided the opportunity to discuss both diagnostic and therapeutic issues raised, concerning not only the evaluation and diagnostic classification of complex and fluctuating symptoms-including abnormal thought content (obsessions or delusional ideas) accompanied by auditory hallucinations that evolved at a later stage during the process of the disorder-but also the response of such symptoms to the various medications applied. Differential diagnosis should include obsessive-compulsive disorder, unipolar schizoaffective disorder, and tardive Tourette's syndrome. Questions raised concerning the beneficial or worsening effect of specific medications applied with regard to the prominent psychopathology during the course of the disorder as well as the optimal treatment for such a case are also discussed.

Is central auditory processing disorder present in psychosis?

PURPOSE: The scope of this study was to trace central auditory processing issues in patients with first-episode psychosis using a psychoacoustic test battery approach. METHOD: Patients (n = 17) and volunteer control subjects (n = 17) with no personal or family history of schizophrenia were included in the study on the basis of normal hearing sensitivity. The authors implemented a central auditory processing battery consisting of monaural and binaural tests with verbal and nonverbal stimuli. RESULTS: Perceptual deficits in both nonverbal and verbal auditory stimuli are reported in this study, with temporal central auditory processing deficits and a mean left-ear advantage documented in the patient group. CONCLUSION: This study points to the possibility of the existence of central auditory processing deficits in first-episode psychosis leading to schizophrenia. Audiologists should be aware of the psychiatric research pointing to enhanced verbal memory as a result of auditory training, linking bottom-up remediation with top-down improvement.

Trends in suicidality amid the economic crisis in Greece.

For the decade 2000-2010, suicidal rates appear to be both low and stable in Greece and unrelated to the socioeconomic environment. It is highly possible that the recent crisis caused a significant increase in dysphoria, stress, depression and maybe suicidal ideation in the general population, but completed suicides do not seem to have increased so far. Measures are needed to make sure there will be no increase in completed suicides in the near future, since historically, periods of socioeconomic instability might be related to increased suicidality. Community interventions reduce stigma and enhance help-seeking. However, only those including the creation of social support networks are essential in the fight against suicidality.

Antiepileptic drugs and suicidality.

The current study is a systematic review of the literature concerning the possible relationship of antiepileptics and suicide-related clinical features and behaviours. A MEDLINE search returned 863 papers but only five were chosen as relevant. A critical analysis of the Food and Drug Administration report is also included. Overall, the current review suggests there are no convincing data concerning a 'class effect' of antiepileptics in inducing any type of suicide-related behaviours. Further research is needed concerning topiramate, lamotrigine and maybe leviracetam. Clinicians are expected to inform patients and their families on the possible increased risk but it is important not to overemphasise the issue, since stopping or refusing to start antiepileptics may result in serious harm, including death of the patient. Future randomised controlled trials should specifically focus on issues concerning depression and suicidal thoughts in patients with epilepsy.

Development of the Risk Assessment Suicidality Scale (RASS): a population-based study.

BACKGROUND: Suicide and suicide attempts are significant and costly public health problems. In order to prevent suicidal and other self-injurious behaviors, research on the multiple factors involved in these behaviors with comprehensive and user-friendly instruments is necessary. The aim of the current study was to construct a self-report instrument with emphasis on items describing suicide-related behavior itself rather than strongly related clinical features on the basis of a general population study. METHODS: Twelve items comprising a new scale were applied to 734 subjects from the general population (40.6% males and 59.4% females) aged 40.8±11.5 along with the STAI and the CES-D. RESULTS: The scoring method was developed on the basis of frequency table of responses to the individual scale items. The factor analysis returned 3 factors explaining 59.19% of total variance (Intention, Life, and History). The Cronbach's alpha was 0.85 for the Intention, 0.69 for the Life and 0.52 for the History subscale. LIMITATION: The findings need replication in clinical and epidemiologic studies. CONCLUSION: The RASS is a reliable and valid instrument which might prove valuable in the assessment of suicidal risk in the general population as well as in mental patients.

Tardive Tourette-like syndrome: a systematic review.

Tardive Tourette syndrome is characterized by the occurrence of multiple motor and vocal tics in patients on long-term neuroleptic, antiepileptic medication or stimulants, and was first reported by Golden in 1974 and was given its name in 1980 by Steven Stahl who linked it to tardive dyskinesia. The Medline was searched with the combination of the words 'tardive' or 'induced' or 'late' and 'Tourette' or 'Tourettism' and 375 papers were indentified; 42 of them were judged to be relevant. Forty-one cases were identified, caused by antipsychotics, antiepileptics, stimulants and other medication. A number of treatment options are reported in the literature but no systematic study of the syndrome has been done yet.

Bipolar disorder and resembling special psychopathological manifestations in multiple sclerosis: a review.

PURPOSE OF REVIEW: The higher prevalence of psychiatric disorders in multiple sclerosis (MS) compared with the general population is well documented, with depression being the leading disorder. Apart from depression, other psychiatric disorders and symptoms such as bipolar disorder, pseudobulbar affect, euphoria sclerotica, anxiety and personality changes are also reported to be overpresented in MS patients. Psychiatric disorders in MS lead to significant disruption in patients' family, work and social life, affecting patients' quality of life in general. Moreover, they are reported to be associated with poorer adherence to MS medication. The literature concerning bipolar disorder and affect disorders in MS is rather scarce. The purpose of this article is to provide a critical review on the latter subject. RECENT FINDINGS: This review focuses upon the recent findings with regard to the epidemiology and the comorbidity rates of bipolar and affect disorders in MS, questions raised about the potential underlying mechanisms that could explain such a high comorbidity, diagnostic issues and the recent developments in the treatment of those psychiatric disorders in MS. SUMMARY: Despite the fact that the higher prevalence of psychiatric disorders in MS is well established, such disorders still remain underdiagnosed and undertreated. A shift in the clinical suspicion towards the psychiatric morbidity in MS patients and the optimal treatment of those disorders is fundamental.

Delusional disorder and alcohol abuse in a patient with Wilson's disease.

OBJECTIVE: Wilson's disease (WD) or hepatolenticular degeneration is a rare disorder of copper metabolism that results in copper deposition in brain, liver, kidneys and the cornea. Due to the copper deposits in the brain, neurological and psychiatric symptoms may appear. The psychiatric manifestations may vary from mood disorders, behavioral and personality disorders to cognitive impairment, while psychotic symptoms are rarely reported. The objective of this report was to present an unusual case of WD presenting with nonpersecutory delusional disorder and alcohol abuse in the absence of neurological signs. CASE SUMMARY: A 34-year-old male patient, without any previous psychiatric or alcohol abuse history, presented with delusions of jealousy and alcohol abuse when he discontinued his treatment for WD. Although the patient had no previous symptoms or neurological signs, he was receiving treatment for WD for 3 years, after being diagnosed with the disease during family precautionary examination, since his brother developed symptomatic WD. The patient started combined pharmacotherapy, and after 3 months of follow-up the psychiatric manifestations were controlled sufficiently. CONCLUSIONS: Although WD is rarely associated with alcohol abuse and delusions of jealousy, this disease should be taken into account in the differential diagnosis of these psychiatric manifestations.

Revisiting the Dexamethasone Suppression Test in unipolar major depression: an exploratory study.

BACKGROUND: Important methodological questions still exist concerning the Dexamethasone Suppression Test (DST), including the possibility of a better way of interpreting it. The aim of the present study was to explore the feasibility of an alternative way of interpreting DST results. METHODS: A total of 50 patients with major depression aged 41.0 +/- 11.4 years old participated in the study. Past and present suicide attempts were recorded. Psychometric assessment included the Hamilton Depression Rating Scale (HDRS), the Hamilton Anxiety Scale (HAS), the Newcastle Depression Diagnostic Scale (NDDS), the Diagnostic Melancholia Scale (DMS) and the General Assessment of Functioning (GAF) scale. The 1 mg DST protocol was used. Analysis methods included the chi square test and analysis of covariance (ANCOVA) with Fisher least significant difference (LSD) as post hoc tests. RESULTS: In all, 34 patients (68%) were suppressors, 16 (32%) were non-suppressors and 14 patients had cortisol values above 5 microg/dl at baseline. Baseline cortisol level did not influence the classical DST interpretation. A total of 18 patients (36%) showed an increase of their cortisol levels after dexamethasone administration and 32 patients (64%) showed a decrease. Reducers had less melancholic features, similar levels of depression, better sleep and less suicidal thoughts in comparison to increasers. No relationship of DST to suicidality was found. DISCUSSION: The present study explored the pattern of cortisol response to dexamethasone suppression and suggested an alternative way of coding and interpreting the DST on the basis of whether the cortisol levels remain stable or increase vs decrease after the administration of cortisol. The results put forward a complex way of understanding the relationship of the DST results with clinical symptoms.

Factors affecting hospital length of stay: is substance use disorder one of them? A study in a Greek public psychiatric hospital.

Comorbidity of psychiatric disorder and substance use disorder (SUD) is very common. Clinical experience says that comorbidity increases inpatient length of stay. We aimed to discover which factors affect length of stay for inpatients at a psychiatric department in a specialized mental hospital in a Greek urban area, and specifically whether SUD is one of them. All patients admitted over a 12-month period were given the CAGE questionnaire and that part of the EUROPASI questionnaire dealing with substance use. This was followed by a diagnostic interview to establish the final diagnosis in accordance with the DSM-IV criteria. Following this, the patients' characteristics in conjunction with their average length of stay were all evaluated statistically. A total of 313 patients were assessed. Present substance use disorder was identified in 102 individuals (32.6%). The principal substances involved in addiction or abuse were alcohol, cannabis, benzodiazepines, and opiates. Patients differed as to their cooperation with the medication regime. On the other hand, there was no statistical difference regarding the number of hospitalisations. Psychopathology was not found to play a direct role, as no one diagnosis correlated with length of stay. The factors found to affect length of stay in this psychiatric department were the length of time they had been mentally ill and cooperation in taking medication. It appears that SUD is not one of the factors affecting length of stay.

Comorbid mental and somatic disorders: an epidemiological perspective.

PURPOSE OF REVIEW: The comorbidity of mental and somatic disorders is a complicated issue, especially concerning its epidemiological perspective. Complications are usually associated with the research approach, the etiological coherence of co-occurrence, and the obscurity or absence of diagnostic criteria for mental disorders due to a general medical condition or drugs, age, etc. This review aims to investigate contemporary epidemiological data on mental and somatic comorbidity. RECENT FINDINGS: The frequent co-occurrence of certain physical diseases and certain mental disorders is corroborated by contemporary epidemiological data. Cardiovascular disease, hypertension, respiratory disorders, diabetes mellitus and other metabolic disorders seem to be associated with mental disorders; the rates of occurrence, however, depend on the special characteristics of the sample. Utilization of healthcare systems and costs for patients with mental-somatic comorbidities are suggested to be higher than those for patients without comorbidities. SUMMARY: Although it is generally accepted that many physical conditions have been associated with serious mental disorders, the exact nature of the relationship between them is still unclear. Various factors such as unhealthy lifestyle habits, psychotropic medication, and inadequate medical treatment or provision are implicated. Further research is required.

Development of a standardized scoring method for the Graphic Sequence Test suitable for use in psychiatric populations.

Although the graphic version of the Alternating Sequences Test which was introduced by Luria exists for years little has been done to standardize it. The aim of the current study was to develop a novel and detailed standardized method of administration and scoring. The study sample included 93 normal control subjects (53 women and 40 men) aged 35.87+/-12.62 and 127 patients suffering from schizophrenia (54 women and 73 men) aged 34.07+/-9.83. The psychometric assessment included the Positive and Negative Symptoms Scale the Young Mania Rating Scale, and the Montgomery-Asberg Depression Rating Scale. A scoring method was developed and was based on the frequencies of responses of healthy controls. Cronbach alpha and test-retest and interrater reliability were very good. Two indices and 6 subscales of the Standardized Graphic Sequence Test were eventually developed. The Standardized Graphic Sequence Test seems to be a reliable, valid, and sensitive to change instrument based on Luria's graphic sequence test. The great advantage of this instrument is the fact that it is paper and pencil, easily administered and little time consuming. Further research is necessary to test its usefulness as a neuropsychologic test.

Season of birth, clinical manifestations and Dexamethasone Suppression Test in unipolar major depression.

BACKGROUND: Reports in the literature suggest that the season of birth might constitute a risk factor for the development of a major psychiatric disorder, possibly because of the effect environmental factors have during the second trimester of gestation. The aim of the current paper was to study the possible relationship of the season of birth and current clinical symptoms in unipolar major depression. METHODS: The study sample included 45 DSM-IV major depressive patients and 90 matched controls. The SCAN v. 2.0, Hamilton Depression Rating Scale (HDRS) and Hamilton Anxiety Scale (HAS) were used to assess symptomatology, and the 1 mg Dexamethasone Suppression Test (DST) was used to subcategorize patients. RESULTS: Depressed patients as a whole did not show differences in birth season from controls. However, those patients born during the spring manifested higher HDRS while those born during the summer manifested the lowest HAS scores. DST non-suppressors were almost exclusively (90%) likely to be born during autumn and winter. No effect from the season of birth was found concerning the current severity of suicidal ideation or attempts. DISCUSSION: The current study is the first in this area of research using modern and rigid diagnostic methodology and a biological marker (DST) to categorize patients. Its disadvantages are the lack of data concerning DST in controls and a relatively small size of patient sample. The results confirm the effect of seasonality of birth on patients suffering from specific types of depression.