0000000000249574
AUTHOR
Belén Arranz
showing 11 related works from this author
Efficacy of quetiapine XR vs. placebo as concomitant treatment to mood stabilizers in the control of subthreshold symptoms of bipolar disorder: Resul…
2017
Patients with bipolar disorder (BD) do not always achieve full remission between episodes. Subthreshold symptoms (depressive, manic or mixed) represent a major cause of relapse and disability in these patients. Immediate release (IR) and extended release (XR) formulations of quetiapine are both indicated for short and long-term treatment of BD. The aim of this study was to evaluate the efficacy of quetiapine XR vs placebo in subthreshold symptomatology when added to previous mood stabilizer treatment. A pilot phase IIIB, multicentre, prospective, placebo controlled, randomized, double blinded study of 12 weeks follow-up was performed (NCT01197846). Patients were randomized to quetiapine XR …
Differential serum acute-phase biomarker profile in schizophrenia and bipolar disorder
2016
There is a growing interest in inflammation and immune dysfunction in severe psychiatric disorders such as schizophrenia and bipolar disorder. This dysfunction seems to consist in abnormal blood levels of cytokines and acute-phase proteins, with increased levels of C-reactive protein (CRP), fibrinogen, homocysteine and erythrocyte sedimentation rate (ESR). Higher levels can be found in acute episodes and in patients with a higher cardiovascular risk.Acute-phase protein serum parameters were determined in a sample of 100 outpatients with schizophrenia (n = 50) or bipolar disorder (n = 50) so as to assess differences in pro-inflammatory state. Metabolic state was assessed through BMI, waist c…
A clinical staging model for bipolar disorder: longitudinal approach
2020
AbstractBipolar disorder (BD) has been identified as a life-course illness with different clinical manifestations from an at-risk to a late stage, supporting the assumption that it would benefit from a staging model. In a previous study, we used a clustering approach to stratify 224 patients with a diagnosis of BD into five clusters based on clinical characteristics, functioning, cognition, general health, and health-related quality of life. This study was design to test the construct validity of our previously developed k-means clustering model and to confirm its longitudinal validity over a span of 3 years. Of the 224 patients included at baseline who were used to develop our model, 129 (…
Sex differences in bipolar disorder: Impact of lifetime cannabis use on clinical course, functioning, and quality of life in bipolar disorder.
2020
Cannabis use is markedly prevalent among patients with bipolar disorder (BD). However, to date, there have been no studies on this issue with a sex-based approach. This study examines if lifetime cannabis use (LCU) is differently associated with clinical course, functioning, and quality of life (QoL) in patients with BD by sex.Secondary analysis of a cross-sectional, naturalistic, multicentre study. LCU was defined as having had at least one day of use per month for at least 12 consecutive months in a patient's life.A total of 224 patients with BD were included (65.2% women). Patients with LCU were younger (p = 0.001) and had their first hospitalization earlier (p0.005) than those without L…
Classification of patients with bipolar disorder using k-means clustering.
2019
Introduction Bipolar disorder (BD) is a heterogeneous disorder needing personalized and shared decisions. We aimed to empirically develop a cluster-based classification that allocates patients according to their severity for helping clinicians in these processes. Methods Naturalistic, cross-sectional, multicenter study. We included 224 subjects with BD (DSM-IV-TR) under outpatient treatment from 4 sites in Spain. We obtained information on sociodemography, clinical course, psychopathology, cognition, functioning, vital signs, anthropometry and lab analysis. Statistical analysis: k-means clustering, comparisons of between group variables, and expert criteria. Results and discussion We obtain…
Spanish validation of the Empirically Developed Clinical Staging Model (EmDe-5) for patients with bipolar disorder
2021
Abstract Introduction Bipolar disorder (BD) has been reconceptualised as a progressive disorder that develops from mild to severe presentations. An empirical staging model – the Empirically Developed Clinical Staging Model for BD (EmDe-5) – was developed in a previous study. This study aims to further validate that model using a larger and more representative Spanish sample. Material and methods 183 BD outpatients were recruited at 11 sites in Spain. Assessment included clinical characteristics of the BD (number of hospitalisations, number of suicide attempts, comorbid personality disorders), physical health (BMI, metabolic syndrome, number of physical illnesses), cognition (SCIP), function…
Are affective temperaments determinants of quality of life in euthymic patients with bipolar disorder?
2018
Background: Bipolar disorder (BD) is a disabling illness that is associated with low quality of life (QoL). This low QoL goes further than mood episodes, which suggests that stable traits, such as affective temperaments, can cause functional impairment. Objective: Our study analyses the impact of affective temperaments on the Physical Component Summary (PCS) and Mental Component Summary (MCS) of QoL in euthymic BD patients. Methods: A multicentre study was conducted in 180 euthymic BD patients and 95 healthy controls. Firstly, statistical analyses were performed to compare QoL and affective temperaments between the two groups. Secondly, Adaptive Lasso Analysis was carried out to identify th…
Gender differences in C-reactive protein and homocysteine modulation of cognitive performance and real-world functioning in bipolar disorder.
2018
Background: Cognitive and psychosocial impairment has been associated with increased levels of C-reactive protein (CRP) and homocysteine in bipolar disorder, but gender differences have seldom been studied. Methods: Two hundred and twenty-four bipolar outpatients were included. Cognitive performance was assessed through the Screen for Cognitive Impairment in Psychiatry (SCIP). Psychosocial functioning was evaluated using the Functioning Assessment Short Test (FAST) and the General Assessment of Functioning (GAF). Homocysteine and CRP levels were determined. Separate analyses were performed by gender. Partial correlations were calculated to test for associations between biomarkers and cognit…
Association between neutrophil-lymphocyte ratio, platelet-lymphocyte ratio, and C-reactive protein levels and metabolic status in patients with a bip…
2022
OBJECTIVES Neutrophil-lymphocyte ratio (NLR), platelet-lymphocyte ratio (PLR), and C-Reactive Protein (CRP) are markers of inflammation that are elevated in bipolar disorder (BD) and are also related to a higher risk of metabolic syndrome (MetS). This study aimed at investigating for the first time the association between NLR, PLR, and CRP and the metabolic status in BD. METHODS We assessed the association between biomarkers and the metabolic status: number of metabolic risk factors, presence of MetS, insulin sensitivity (Quantitative Insulin Sensitivity Check Index, QUICKI) and insulin resistance (Homeostatic Model Assessment for Insulin Resistance, HOMA-IR index), in a sample of 219 outpa…
Development of the insight scale for affective disorders (ISAD): modification from the scale to assess unawareness of mental disorder.
2011
Abstract Background Research on insight in patients with mood disorders has grown in recent years. Several instruments to assess insight have been used, but most of them have been specifically designed for psychosis and may not appear relevant to mood disorders. The aim of the present study is to develop a short, multidimensional, reliable and valid scale to measure insight in patients with mood disorders, based on the Amador's Scale to Assess Unawareness of Mental Disorders (SUMD). Method A Delphi method was used to facilitate expert participation and ensure face and content validity. The SUMD structure and items were used as a reference in the scale development. A new scale with 17 items …
Sexual Dysfunction and Mood Stabilizers in Long-Term Stable Patients With Bipolar Disorder.
2020
Abstract Background In addition to factors intrinsic to bipolar disorder (BD), sexual functioning (SF) can be affected by extrinsic causes, such as psychotropic drugs. However, the effect of mood stabilizers on SF and quality of life (QoL) is an underexplored research area. Aim To analyze SF in BD outpatients in euthymia for at least 6 months treated only with mood stabilizers and the association between SF and QoL. Methods A multicenter cross-sectional study was conducted in 114 BD outpatients treated with (i) lithium alone (L group); (ii) anticonvulsants alone (valproate or lamotrigine; A group); (iii) lithium plus anticonvulsants (L+A group); or (iv) lithium plus benzodiazepines (L+B gro…