Association of Candidate Single Nucleotide Polymorphisms Related to Candidate Genes in Patients With Schizophrenia.

INTRODUCTION: Schizophrenia is a chronic heterogenic neurodevelopment disorder. Many genes interfere in the development of SCZ. All four genes, NrCAM, PRODH, ANK3, and ANKK1, which were evaluated in this study, were previously reported to be associated with Schizophrenia. The NrCAM contributes to creating cognitive deficiencies through the CAM's signaling pathway. PRODH plays a vital role in creating SCZ negative symptoms through the signaling pathway of glutamatergic and NMDA receptors. ANK3 affects ion channel and molecular adhesion in Ranvier and initial segments of axons, leading to mental retardation, sleep disorder, and SCZ. ANKK1 encodes a protein kinase and was reported to be associated with alcohol addiction, Attention Deficit Hyperactivity Disorder (ADHD), and SCZ. METHODS: The subjects were selected from Schizophrenic patients referring to the Psychiatric Ward of Imam-Hussein Hospital and Schizophrenic Patients Support Institution (AHEBBA). 95 (30 Schizoaffective patients, 57 Paranoid patients, and 8 disorganized) patients were recruited as the subjects in the present case-control association study. 120 healthy subjects were recruited from the Tehran Medical Genetics Laboratory staff and a group of students from the Islamic Azad University of Science and Research in Tehran. The genotypes were determined with molecular genotyping techniques of PCR-RFLP, ARMS-PCR, and Cycle sequencing. Results were analyzed by the Chi-Square test using SPSS V. 24 and R, SNP STATE Package to investigate significant differences between cases and controls. RESULTS: The incidence of schizophrenia was 68% and 32% among men and women, respectively. The evaluation of the allelic association between schizophrenia and all the candidate SNPs showed a significant association between NrCAM's SNP rs10235968 and SCZ (P=0.001). Haplotype T, T, C in rs10235968, rs6967368, rs3763463, respectively, within the NrCAM gene, showed significant association with schizophrenia disorder (P=0.0001). CONCLUSION: No association was found between other candidate SNPs and SCZ among the subjects.

Factors Affecting the Choice of Psychiatry as a Specialty in Psychiatry Residents in Iran.

Objective: The aim of this study was to investigate the current factors affecting the choice of psychiatry as a specialty and to detect the main factors in their choice. Method: This descriptive study included 75 first year psychiatry residents in the academic year of 2014/2015. A Likert-type anonymous questionnaire consisting of academic and demographic data with 43 questions, which evaluated the reason for choosing psychiatry as a specialty, was given to the residents. Results: The participants had a positive opinion about 28 items of the questionnaire, meaning that these items had a positive effect in choosing psychiatry as a specialty (questions with P value less than 0.05 and a positive mean). More than 80% of the residents had a positive opinion about six items of the questionnaire (amount of intellectual challenge, variety of knowledge fields relevant to psychiatry, emphasis on the patient as a whole person, the importance of treating mental illnesses in the future, work pressure and stress of the field during residency and coordinating with the person's life style). The participants had a negative opinion about two items of the questionnaire (questions with a P value less than 0.05 and a negative mean). They included experiencing mental illness personally through relatives or close friends as well as the income in psychiatry. Moreover, 36% of the residents with a more definite opinion mentioned that they chose psychiatry as a specialty because of the limitations in residency exam. Conclusion: Assistants had a positive opinion about most of the questions and this positive attitude seemed to be an important factor in their specialty choice. However, attending to the preventing factors may increase the selection of psychiatry as a specialty. .

Premenstrual syndrome and comorbid depression among medical students in the internship stage: a descriptive study.

OBJECTIVE: Premenstrual syndrome (PMS) is a cluster of physical and emotional changes that typically begins several days before the menstrual period that disappears quickly after menstruation. It seems that co-occurrence of depression increases the risk and severity of this syndrome. In this cross-sectional research, we evaluated an association between PMS and depression in medical students. METHODS: A hundred female medical students of Shahid Beheshti University of Medical Sciences that were available assigned for research. They were divided into two groups after administration of demographic questionnaire and PMS questionnaire made by researchers based on Diagnostic and Statistical Manual of Mental Disorders, Fourth Edition-Technical Revision; group with or without PMS diagnosis. Then, they completed Beck's Depression Inventory. RESULTS: From 100 participants, 55% (n = 55) met the PMS criteria and 45% had no PMS. In the PMS group 30% (n = 17) had no depression; 38% (n = 21) had mild depression; 23% (n = 13) had moderate depression; and 7% (n = 4) had severe depression. In the group with no PMS 60% (n = 27) had no depression; 20% (n = 9) had mild depression; 17% (n = 8) had moderate depression; 2% (n = 1) had severe depression. The rate of depression was significantly higher in PMS group (p = 0.04). CONCLUSION: In this research, PMS had an elevated frequency in medical students. In students with PMS, rate of depression was higher than students without PMS.

Undiagnosed Bipolar Disorders in Patients with Major Depressive Episode: Iran's part of a Multicenter Cross-Sectional Study.

OBJECTIVE: Bipolar spectrum disorders may often go undiagnosed or unrecognized. The aim of this study was to determine the proportion of bipolar disorder symptoms in Iranian patients with a major depressive episode. METHODS: 313 patients with a current DSM-IV-TR (Diagnostic and Statistical Manual of Mental Disorders 4th ed. Text rev.) diagnosed with a major depressive episode entered this cross-sectional study. Thirty two items revised Hypomania/ mania Symptoms Checklist (HCL-32) was used to determine the frequency of bipolar episodes. RESULTS: Considerable proportion of patients (53.9%) previously diagnosed as major depressive disorder fulfilled the criteria for bipolar disorder by Bipolarity Specifier. The Bipolarity Specifier additionally identified significant association for manic / hypomanic states during antidepressants therapy (p<0.0003) and current mixed mood symptoms (p<0.0001). CONCLUSION: Bipolar symptoms meeting the criteria for bipolar disorders in depressed patients who have not been previously diagnosed with bipolar disorder are frequent. Current DSM criteria may not be sufficient to diagnose more subtle or atypical forms of bipolar disorders.