Journal of affective disorders
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General practitioners (GPs) play a key role in identifying and managing patients with suicidal tendencies. Few studies, however, examine both GP and patient characteristics and GP practices associated with suicide assessment. This article aims to evaluate 1) GPs' success in early identification of suicidal ideation (SI) in patients starting antidepressant or anxiolytic treatment, and 2) patient- and GP-related factors associated with this success. ⋯ The percentage of undetected SI in this study population was high. Additional training of GPs increases the chances of detecting SI. Medical training and continuing medical education should include better instruction about SI risk factors and diagnosis, including non-major depressions, and stress that screening requires sufficient consultation time.
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The neurodegeneration hypothesis proposed major depression as a consequence of the imbalance between neuroprotective and neurodegenerative metabolites in the kynurenine pathway. To test the hypothesis, plasma tryptophan and kynurenine pathway metabolites were studied in 58 patients with major depression and 189 normal controls. ⋯ The neuroprotective ratio did not change after treatment in those with repeated episodes of depression but it increased significantly (p=0.044) in those with first episodes. The results suggested that the reduction in neuroprotective markers, which indicated an impaired neuroprotection, might play an important role in pathophysiology of major depression.
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Functional neuroimaging research indicates that depression, and treatment, are associated with neurobiological changes. Changes associated with natural recovery or the placebo effect are unknown. The aim of this study is to assess whether the placebo effect in depression is associated with specific functional neuroimaging changes. ⋯ Recovery from depression in placebo groups correlates with changes in frontal and cingulate cortical activity, although these may also be found in recovery without treatment. It is also speculated that antidepressant treatment delay relates to 'counterbalancing' of an advantageous placebo effect with a disadvantageous initial drug effect.
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Frequent exposure to traumatic situations put police officers under an increased risk for developing post-traumatic stress disorder (PTSD). The goals of this study were to determine the current prevalence of post-traumatic stress symptoms (PTSS) in Brazilian police officers and to compare groups with and without PTSS in terms of associated morbidity. ⋯ PTSD prevalence in our sample was comparable to those reported for North American and Dutch policemen. The presence of "full PTSD" was associated with evidences of considerable morbidity. These findings may contribute to the development of effective policies aimed at the prevention and treatment of PTSD in law enforcement agents.
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Comparative Study
Validity of the patient health questionnaire (PHQ-9) as a screening tool for depression amongst Nigerian university students.
The common self-rated depression scales are lengthy, old and do not reflect the current diagnostic classifications criteria of depressive disorders. This study aimed to validate the Patient Health Questionnaire (PHQ-9) as a screening tool for depression amongst Nigerian university students. ⋯ The PHQ-9 has good psychometric properties amongst Nigerian university students. Because of its validity, reliability, brevity and ease of administration, the PHQ-9 will be a valuable tool for estimating depression amongst college students in Nigerian community. More studies are needed to test the usefulness of the translated local language versions of this instrument amongst the community in sub-Saharan Africa.