Publications by authors named "Nicolas Mazer"

Background: This short communication explores the interrelationships between depressed mood and sleep disturbances in one-year postpartum period.

Methods: Utilizing data from the Interaction of Gene and Environment of Depression during PostPartum Cohort (IGEDEPP) involving 3310 French postpartum women, we employed a cross-lagged panel model (CLPM) to analyze the relationships between these two symptoms, across three time points (immediate postpartum [<1 week after delivery], early postpartum [<2 months after delivery], and late postpartum [2 months to 1 years after delivery]).

Results: Depressed mood significantly influences sleep disturbances in late postpartum (β = 0.

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Background: Eating disorders (EDs) are liable to alter the disease course of bipolar disorder (BD). We explored the crossed clinical features between EDs and BD, particularly as a function of BD type (BD1 vs. BD2).

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Objectives: Up to 70% individuals with bipolar disorder (BD) are lifetime tobacco smokers, a major modifiable risk factor for morbidity. However, quitting smoking is rarely proposed to individuals with BD, mainly because of fear of unfavorable metabolic or psychiatric changes. Evaluating the physical and mental impact of tobacco cessation is primordial.

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Article Synopsis
  • Tobacco use is prevalent among individuals with schizophrenia, and while some short-term studies suggest it may have short-term benefits, this research explores its overall impact on cognitive functioning and psychiatric characteristics in stable outpatients with schizophrenia.
  • The study involved 1233 participants, showing that over half were current smokers, with significant associations found between smoking, cognitive impairment (particularly in abstract reasoning), and higher instances of alcohol and cannabis use disorders.
  • The findings indicate that chronic smoking is linked to cognitive decline in schizophrenia patients, challenging the idea that smoking is a form of self-medication, and highlight the need for further research on the long-term effects of tobacco on cognitive development in this population.
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Article Synopsis
  • - A study examined the early kidney damage in 217 bipolar disorder patients treated with lithium, focusing on factors that affect measured glomerular filtration rate (mGFR) and the accuracy of kidney MRI for detection.
  • - Findings revealed that longer lithium treatment, older age, albuminuria, hypertension, and hypothyroidism were linked to lower mGFR, while serum lithium levels showed no significant association.
  • - MRI scans identified renal microcysts in 51% of patients, and their presence correlated with decreased mGFR, indicating that MRI could be a valuable tool for early detection of kidney issues related to lithium treatment.
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Objectives: High rates of non-right-handedness (NRH) including mixed-handedness have been reported in neurodevelopmental disorders. In schizophrenia (SZ), atypical handedness has been inconsistently related to impaired features. We aimed to determine whether SZ subjects with NRH and mixed-handedness had poorer clinical and cognitive outcomes compared to their counterparts.

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Objectives: High rates of non-right-handedness (NRH) and mixed-handedness exist in neurodevelopmental disorders. Dysfunctional neurodevelopmental pathways may be implicated in the underlying pathophysiology of bipolar disorders (BD), at least in some subgroups. Yet little is known about correlates of NRH and mixed-handedness in BD.

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Objectives: The comorbidity of alcohol use disorder (AUD) and bipolar disorder (BD) has been repeatedly associated with poorer clinical outcomes than BD without AUD. We aimed to extend these findings by focusing on the characteristics associated with the sequence of onset of BD and AUD.

Methods: 3,027 outpatients from the Fondamental Advanced Centres of Expertise were ascertained for BD-1, BD-2 and AUD diagnoses, including their respective ages at onset (AAOs, N =2,804).

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Background: Postpartum period is associated with an increased risk of bipolar disorder diagnosis and relapse, mainly major depressive episode. Onset during this period might be associated with specific characteristics.

Aim: To compare the socio-demographic and clinical characteristics of parous women presenting with bipolar disorder and an index depressive episode occurring during or outside the postpartum period.

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Background: Lithium is recommended as a first line treatment for bipolar disorders. However, only 30% of patients show an optimal outcome and variability in lithium response and tolerability is poorly understood. It remains difficult for clinicians to reliably predict which patients will benefit without recourse to a lengthy treatment trial.

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Background: To what extent Psychotic Like Experiences (PLEs) are associated with nonpsychotic psychiatric disorders and whether the number of PLEs is associated with higher rates of psychiatric disorders remains unclear.

Methods: The sample was composed of 34,653 civilian participants, aged 18 years and older from wave 2 National Epidemiologic Survey on Alcohol and Related Conditions (NESARC). This was a representative sample of the non-institutionalized U.

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Objective: Recent findings suggest an association between tobacco and psychosis, but whether this association is mediated by confounding factors is unknown. Psychosis-like experiences (PLEs) are a subclinical expression of psychosis. To disentangle the association of tobacco with PLEs, we examined data from a large US population-based, nationally representative sample.

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