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Biomedical subjects

A Bulbena

Publications and source records attributed to A Bulbena.

At least 19 recordsLinked to original sources
PubMed2006

Cross validation with the mood disorder questionnaire (MDQ) of an instrument for the detection of hypomania in Spanish: the 32 item hypomania symptom check list (HCL-32).

BACKGROUND: The detection and diagnosis of present or past hypomanic episodes is of key importance for the differential diagnosis between depressive disorders and type II bipolar disorder. However, there are few instruments available to satisfactorily screen for the latter condition. The Hypomania Symptom Checklist-32 (HCL-32) is a self-applied questionnaire with 32 hypomania items and 8 severity and functional impact items which is being developed in several European countries for this purpose. Our aim was to develop and validate the psychometric properties of the HCL-32 scale in Spain in patients with bipolar disorder and to compare its properties with other instruments available for the detection of bipolar II disorder. METHODS: Patients were selected from 15 psychiatric outpatient departments, diagnosed with type I or type II bipolar disorder (BDI and BDII) and unipolar major depression (MD) according to DSM-IV-TR criteria. A control group of healthy subjects (HS) was likewise assessed. The patient selection criteria included a well-established diagnosis and a stable disorder and pharmacological treatment. The HCL-32 was administered to 237 subjects distributed among the above groups, on two occasions four weeks apart. We analysed the internal consistency, test-retest reliability and discriminative capacity of the HCL-32. RESULTS: The internal consistency of the Spanish version of the HCL-32, evaluated by Cronbach's alpha, was 0.94. Mean of affirmative questions by group were 21.2 (SD 5.8) for BDI, 19.3 (SD 6.2) for BDII, 8.6 (SD 6.6) for MD and 6.6 (SD 6.1) for HS, with statistically significant differences between them (Kruskal-Wallis test, p<0.001). Concurrent validity using the diagnosis variable was 0.72. Test-retest reliability was 0.90. We analysed the best cut-off point by means of a ROC curve analysis; for 14 affirmative responses, a sensitivity of 0.85 95%CI (0.78, 0.91) and specificity of 0.79, 95%CI (0.72, 0.87) were obtained. The positive and negative probability ratios were 4.1 and 5.3 (1/0.19 respectively). HCL-32 shows a dual factor structure of items, one as an energy-activity factor and another one as a factor involving items related to disinhibition and problems with self-control and attention. LIMITATIONS: The sample size of bipolar patients (particularly type BDII) should be increased in further studies. CONCLUSIONS: The Spanish version of the HCL-32 has good psychometric properties and sufficient sensitivity and specificity, detecting 8 out of every 10 patients with BD. The HCL-32 is a useful screening tool of patients with bipolar disorder in clinical settings. In its present form it adequately discriminates between bipolar and unipolar or healthy subjects, but not between BD I and BII.

Adult↗
PubMed2006

The relationship between frequency and intensity of fears and a collagen condition.

Encouraged by the positive relationship between joint laxity and panic anxiety, our objective in this study was to compare widespread cultural fears in subjects with and without joint hypermobility syndrome and to assess whether this relationship is sustained for common fears as well. A sample consisting of 1,305 subjects from a rural town were assessed for joint hypermobility syndrome using Beighton's criteria. We assessed fear intensity and frequency using a modified version of the Fear Survey Schedule (FSS-III). Intense fears, defined with a score of 3-4, were compared between hypermobile and nonhypermobile subjects. The analysis was carried out separately for men and women. Nonparametric analysis was applied throughout. Joint hypermobility syndrome was found in 19.9% (141) of women and 6.9% (41) of men. Concerning the fear survey, when we compared the groups with and without joint hypermobility, the mean total scores for both genders were significantly higher for the hypermobile group. When we analyzed each item individually, 43 out of the 44 most severe fears in women and 36 out of the 39 in men, scores were significantly higher in the hypermobile group. We found significant differences between subjects with and without joint hypermobility when assessing specific fears, reinforcing the hypothesis that intensity of fears is greater in subjects with joint hypermobility syndrome. These results show that the association of joint laxity and phobic anxiety is sustained for intense fears and might represent a susceptibility factor for these anxiety conditions.

Adolescent↗
PubMed2005

Global and regional gray matter reductions in ADHD: a voxel-based morphometric study.

Attention deficit hyperactivity disorder (ADHD) is a developmental disorder characterized by inattentiveness, motor hyperactivity and impulsivity. According to neuroimaging data, the neural substrate underlying ADHD seems to involve fronto-striatal circuits and the cerebellum. However, there are important discrepancies between various studies, probably due to the use of different techniques. The aim of this study is to examine cerebral gray (GM) and white (WM) matter abnormalities in a group of ADHD children using a voxel-based morphometry protocol. The sample consisted of 25 children/adolescents with DSM-IV TR diagnosis of ADHD (medicated, aged 6-16 years) who were compared with 25 healthy volunteer children/adolescents. ADHD brains on an average showed a global volume decrease of 5.4% as compared to controls. Additionally, there were regionally specific effects in the left fronto-parietal areas (left motor, premotor and somatosensory cortex), left cingulate cortex (anterior/middle/posterior cingulate), parietal lobe (precuneus bilaterally), temporal cortices (right middle temporal gyrus, left parahippocampal gyrus), and the cerebellum (bilateral posterior). There were no differences in WM volume between ADHD children and control subjects. The results are consistent with previous studies that used different techniques, and may represent a possible neural basis for some of the motor and attentional deficits commonly found in ADHD.

Adolescent↗
PubMed2004

Panic anxiety, under the weather?

The relationship between weather conditions and psychiatric disorders has been a continuous subject of speculation due to contradictory findings. This study attempts to further clarify this relationship by focussing on specific conditions such as panic attacks and non-panic anxiety in relation to specific meteorological variables. All psychiatric emergencies attended at a general hospital in Barcelona (Spain) during 2002 with anxiety as main complaint were classified as panic or non-panic anxiety according to strict independent and retrospective criteria. Both groups were assessed and compared with meteorological data (wind speed and direction, daily rainfall, temperature, humidity and solar radiation). Seasons and weekend days were also included as independent variables. Non-parametric statistics were used throughout since most variables do not follow a normal distribution. Logistic regression models were applied to predict days with and without the clinical condition. Episodes of panic were three times more common with the poniente wind (hot wind), twice less often with rainfall, and one and a half times more common in autumn than in other seasons. These three trends (hot wind, rainfall and autumn) were accumulative for panic episodes in a logistic regression formula. Significant reduction of episodes on weekends was found only for non-panic episodes. Panic attacks, unlike other anxiety episodes, in a psychiatric emergency department in Barcelona seem to show significant meteorotropism. Assessing specific disorders instead of overall emergencies or other variables of a more general quality could shed new light on the relationship between weather conditions and behaviour.

Adult↗
PubMed2001

A polymorphic genomic duplication on human chromosome 15 is a susceptibility factor for panic and phobic disorders.

Anxiety disorders are complex and common psychiatric illnesses associated with considerable morbidity and social cost. We have studied the molecular basis of the cooccurrence of panic and phobic disorders with joint laxity. We have identified an interstitial duplication of human chromosome 15q24-26 (named DUP25), which is significantly associated with panic/agoraphobia/social phobia/joint laxity in families, and with panic disorder in nonfamilial cases. Mosaicism, different forms of DUP25 within the same family, and absence of segregation of 15q24-26 markers with DUP25 and the psychiatric phenotypes suggest a non-Mendelian mechanism of disease-causing mutation. We propose that DUP25, which is present in 7% control subjects, is a susceptibility factor for a clinical phenotype that includes panic and phobic disorders and joint laxity.

Adult↗
PubMed2000

Tardive dyskinesia associated with higher mortality in psychiatric patients: results of a meta-analysis of seven independent studies.

This article reports a meta-analysis of seven independent studies on the association of tardive dyskinesia with all-cause mortality in psychiatric patients. Most of the studies included provide either small sample sizes or follow-up periods too short to reach a substantive conclusion on their own. In the meta-analysis, the overall odds ratio (OR) was significant when calculated either by the fixed-effects model (OR = 1.4, 95% confidence interval [CI] = 1.2-1.7, p < 0.005) or the random-effects model (OR = 1.4, 95% CI = 1.1-1.8, p < 0.005). There was no overall heterogeneity (Q test = 8.1, df = 7,p = 0.32). The overall estimate changed within study designs (OR = 1.4,p = 0.002 in three prospective controlled studies; OR = 2.2, p = 0.02 in two prospective uncontrolled studies; and OR = 0.9, p = 0.80 in two retrospective controlled studies). It was modified upward when the two most influential studies (one prospective and one retrospective) were removed from the overview (OR = 2.2, 95% CI = 1.4-3.5,p = 0.001; Q test = 0.81, df = 4,p = 0.94). The conclusion of the meta-analysis was that tardive dyskinesia must be considered a weak risk factor in terms of mortality. It remains to be elucidated whether it is a risk factor on its own or just a surrogate for any unknown organic liability.

Antipsychotic Agents↗
PubMed1998

Differential effect of haloperidol and clozapine on plasma homovanillic acid in elderly schizophrenic patients with or without tardive dyskinesia.

BACKGROUND: Plasma homovanillic acid (HVA) changes in response to a challenge of several days with haloperidol have been found to be predictive of the therapeutic response to haloperidol over a longer period of treatment. METHODS: Twenty-six elderly women who gave informed consent were divided into two groups, with or without tardive dyskinesia, and subjected to an 80-day washout, after which both the dyskinetic and nondyskinetic group was divided, and half of each group given haloperidol or clozapine. CONCLUSIONS: The nondyskinetic group had a brief rise in plasma HVA, then a decline. The dyskinetic group had no change in plasma HVA. Neither group challenged with clozapine had any change in plasma HVA.

Aged↗
PubMed1998

Association between joint hypermobility syndrome and panic disorder.

OBJECTIVE: The purpose of this study was to assess whether joint hypermobility syndrome is more frequent in patients with panic disorder, agoraphobia, or both than in control subjects and, if so, to determine whether mitral valve prolapse modifies or accounts in part for the association. METHOD: A case-control study was conducted in a general teaching hospital outpatient clinic. Subjects were 99 patients, newly diagnosed and untreated, with panic disorder, agoraphobia, or both and two groups of age- and sex-matched control subjects: 99 psychiatric patients and 64 medical patients who had never suffered from any anxiety disorder. Measures consisted of the Structured Clinical Interview for DSM-III-R, Beighton's criteria for joint hypermobility syndrome, and two-dimensional and M-mode echocardiogram. The presence of mitral valve prolapse and joint hypermobility syndrome was explored by raters who were blind to subjects' psychiatric status. RESULTS: Joint hypermobility syndrome was found in 67.7% of patients with anxiety disorder but in only 10.1% of psychiatric and 12.5% of medical control subjects. On the basis of statistical analysis, patients with anxiety disorder were over 16 times more likely than control subjects to have joint laxity. These findings were not altered after the presence of mitral valve prolapse was taken into account. Of the patients with anxiety disorder, those who had joint hypermobility syndrome were younger and more often women and had an earlier onset of the disorder than those without joint hypermobility syndrome. CONCLUSIONS: Joint laxity is highly prevalent in patients with panic disorder, agoraphobia, or both and may reflect a constitutional disposition to suffer from anxiety. Mitral valve prolapse plays a secondary role in the association between joint hypermobility and anxiety.

Adult↗
PubMed1996

Somatotype in panic patients.

The aim of the study was to test whether an association exists between asthenic somatotype, as measured by the Quetelet index, and panic and or agoraphobia. Ninety-nine cases with panic and/or agoraphobia diagnosed at the psychiatric outpatient clinic of a general teaching hospital were compared to 99 controls with psychiatric conditions other than panic and agoraphobia, and to 64 medical controls, matched by age and gender. No differences in weight, height and raw Quetelet and ponderal indexes were found between panic cases and controls. However, 33.3% of cases, but only 19.2% of psychiatric controls and 18.7% of medical controls, were in the asthenic group as defined by the lower quartile of the Quetelet index (age and sex adjusted odds ratio = 2.33, 95% C.I.: 1.21-4.11). In the entire sample, the asthenic somatotype was associated with lower age and with the presence of hypermobility of joints. Since both panic disorder and mitral valve prolapse may be associated with the joint hypermobility syndrome (JHS), an inherited disorder of collagen synthesis, it is suggested that the relationship found between panic and asthenic somatotype might be mediated through JHS.

Adult↗
PubMed1993

Anxiety disorders in the joint hypermobility syndrome.

A case-control study was designed to test the association between joint hypermobility syndrome (JHS), an inherited disorder of collagen synthesis, and anxiety and phobic disorders. One hundred fourteen cases of JHS diagnosed at the rheumatology outpatient clinic of the Hospital del Mar (Barcelona) were compared to 59 control subjects randomly selected from patients seen at the same clinic. Both cases and controls were examined by a psychologist who used the Structured Clinical Interview for DSM-III-R and who was unaware of their medical diagnoses. DSM-III-R diagnoses of panic disorder, agoraphobia, and simple phobia, but not generalized anxiety disorder, dysthymic disorder, or major depression were found to be highly associated with JHS (age- and sex-adjusted odds ratio = 10.7). Mitral valve prolapse (MVP) was present only among JHS cases. Among cases of JHS, subjects with MVP were almost three times more likely to suffer from anxiety than subjects without MVP (odds ratio = 2.95), although the association was not statistically significant. The strong association between panic anxiety and JHS appears to occur at a higher level than the association between panic and MVP, and provides a new basis for further studies on the genetic background of panic-anxiety.

Adult↗
PubMed1993

Cognitive function in the affective disorders: a prospective study.

A prospective, controlled study of 50 subjects confirmed claims that major depression or mania may cause temporary disorders of attention, memory, visuo-spatial function, and choice reaction time, and cause-independently of medication-the appearance of glabellar tap, positive hand-face test, nuchocephalic reflex, and graphesthesia. On follow-up, all these phenomena either disappeared or markedly improved. Age and age of onset, but not pre-morbid intelligence or history of ECT, seemed to modulate the severity of the cognitive impairment. Presence of delusions predicted poor (but reversible) visuo-spatial function. Cognitive impairment accompanied by reversible soft neurological signs was more marked but patients thus affected surprisingly showed lower depressive scores; this was interpreted as representing a secondary, 'organic' form of affective disorder (i.e. a behavioural phenocopy of depression) characterised by a reduced capacity to experience depressive symptoms and by little improvement at follow-up.

Adult↗
PubMed1992

Feelings of guilt in major depression. Conceptual and psychometric aspects.

A new scale for the evaluation of feelings of guilt is described. Two types of guilt feeling were of potential interest: 'delusional' guilt or shame (experienced in relation to one's actions), and 'affective' guilt (a more general feeling of unworthiness). Reliability and validity analyses for the first (15-item) version of the scale were performed in three separate and contrasting clinical samples. The second and final (seven-item) version was tested in another sample of major depressives and in normal controls. The HRSD was used as a measure of severity throughout. The BDI and Widlöcher psychomotor retardation scale were also used as external criteria for the seven-item scale. Exploratory factor analysis of this sample yielded two factors--'cognitive/attitudinal' and 'mood/feeling'--of which only the first correlated with scores for psychomotor retardation. It is suggested that these two factors represent two forms of guilt, but that only the former is related to a putative dopaminergic disorder. Guilt scores and measures of severity were not correlated. It is suggested that feelings of guilt should be considered as a behavioural marker for a subtype of depression.

Adult↗
PubMed1992

Clomipramine versus phenelzine in obsessive-compulsive disorder. A controlled clinical trial.

A double-blind clinical trial of clomipramine versus phenelzine was carried out on 30 patients suffering from DSM-III obsessive-compulsive disorder. The study period was 12 weeks, and the maximum doses used (from the fifth week on) were 225 mg/day for clomipramine (14 patients) and 75 mg/day for phenelzine (12 patients); four patients dropped out. Obsessive symptoms improved significantly in both drug groups, but there was no significant difference between groups. Depressive symptoms improved before obsessive ones.

Adult↗
PubMed1992

Clinical assessment of hypermobility of joints: assembling criteria.

We carried out a prospective study to determine the validity of different sets of criteria to define the hypermobility syndrome (HMS), as well as the frequency, reliability and clinical features of HMS items. All consecutive cases of HMS attending the rheumatological outpatient clinic of Hospital del Mar (Barcelona, Spain) constituted the index group (n = 114). A control group of non-HMS rheumatological patients (n = 59) was randomly selected to assess suitable cutoff points and particular HMS item prevalences. Beighton's, Carter's and Rotés' HMS scores correlated very highly among them. Both the correlation coefficients obtained between each pair of sets of HMS criteria and the predictive efficiencies were uniformly high, suggesting high concurrent and predictive validity. All but 2 of the major items were more frequent among women. A basic set of criteria to define HMS is proposed. In relation to previous criteria the new scale shows better internal reliability and homogeneity. Results suggest that it may be suitable for screening studies and in clinical rheumatological settings.

Adult↗
PubMed1991

Predictors of antidepressant treatment outcome in melancholia: psychosocial, clinical and biological indicators.

Predictive variables of response to imipramine and to phenelzine at 6 weeks and 6 months were studied in 116 patients suffering from major depression with melancholia (DSM-III). Several sociodemographic, clinical, and biological variables were studied. For imipramine-treated patients, high social support predicted a better response at 6 weeks, while development of hypomania during follow-up was associated with a better response at 6 weeks; absence of life events during the 6-month follow-up and initial non-suppression of dexamethasone predicted a better outcome at 6 months. For phenelzine-treated patients, development of hypomania during follow-up was associated with a better outcome at 6 months and absence of life events prior to the onset of the episode was associated with a worse outcome at 6 months.

Adult↗