Significant outcome• Better response to the treatment in patients with bipolar disorder using folic acid as adjuvant to sodium valproate in the acute phase of mania. Limitation• Patients were followed up for 3 weeks and we suggest further studies with longer follow-up for evaluating the effect of folic acid on long-term treatment and the recurrence of bipolar disorder.

Association studies between attention-deficit hyperactivity disorder (ADHD) and the 10-repeat allele of a polymorphism (a 40 bp variable number of tandem repeats) in the dopamine transporter gene (DAT1) have resulted in mixed findings in different populations. We performed a case/control study to clarify the contribution of this allele with ADHD in the Iranian population. No association was observed between the 10-allele and disease (chi(2) = 0.081, P < 0.9). Furthermore, no significant difference was observed in the homozygosity of this allele between the case and control groups (chi(2) = 0.022, P < 0.9). Implication of the dopamine transporter gene in the pathophysiology of ADHD warrants investigation of other functional polymorphisms within this gene in the Iranian ADHD patients.

Introduction:Emotional stimulus is processed automatically in a bottom-up way or can be processed voluntarily in a top-down way. Imaging studies have indicated that bottom-up and top-down processing are mediated through different neural systems. However, temporal differentiation of top-down versus bottom-up processing of facial emotional expressions has remained to be clarified. The present study aimed to explore the time course of these processes as indexed by the emotion-specific P100 and late positive potential (LPP) event-related potential (ERP) components in a group of healthy women.Methods:Fourteen female students of Alzahra University, Tehran, Iran aged 18–30 years, voluntarily participated in the study. The subjects completed 2 overt and covert emotional tasks during ERP acquisition.Results:The results indicated that fearful expressions significantly produced greater P100 amplitude compared to other expressions. Moreover, the P100 findings showed an interaction between emotion and processing conditions. Further analysis indicated that within the overt condition, fearful expressions elicited more P100 amplitude compared to other emotional expressions. Also, overt conditions created significantly more LPP latencies and amplitudes compared to covert conditions.Conclusion:Based on the results, early perceptual processing of fearful face expressions is enhanced in top-down way compared to bottom-up way. It also suggests that P100 may reflect an attentional bias toward fearful emotions. However, no such differentiation was observed within later processing stages of face expressions, as indexed by the ERP LPP component, in a top-down versus bottom-up way. Overall, this study provides a basis for further exploring of bottom-up and top-down processes underlying emotion and may be typically helpful for investigating the temporal characteristics associated with impaired emotional processing in psychiatric disorders.

Background: Disclosure of the diagnosis is an essential part of the treatment process and an important part of patient rights. However, it can be a very stressful experience, especially in mental health disorders. Patients with bipolar disorder have a unique experience of receiving and managing their diagnosis. The objective of the current study was to explore the experience of patients with bipolar disorder of diagnosis disclosure.Methods: This was a qualitative study. Participants were recruited from patients who knew their disorder's name using purposive sampling method. The inclusion criteria were being diagnosed by a psychiatrist as having bipolar disorder and the disclosure was conducted by a psychiatrist. Sixteen semi-structured, in-depth interviews were conducted with twelve patients. Data were analyzed using thematic content analysis.Results: Patients received their diagnosis name in three steps including Wandering in Unknowns, Limited Brightness and Reaching to a Relative Insight. Patients believed that disclosure of the diagnosis was not accompanied by enough information. Conclusion:The disclosure of diagnosis in patients with bipolar disorder without providing enough information is stressful and is not helpful in empowering these patients. Based on our results, disclosure of diagnosis to patients with bipolar disorder was not conducted with enough information and patients had problems for understanding their symptoms and treatments.

Our statistically significant results suggest that the role of 5HTTLPR in the pathogenesis of BP-1 needs to be clarified by further scrutiny in Iranian population and other populations of Near East.