[Depression among adolescents. A hidden problem for public health and clinical practice]

Prevalence of Depression and Generalized Anxiety Disorder Among Mexican Indigenous Adolescents and Young Adults: Challenges for Healthcare

Providing evidence on mental disorders in indigenous adolescents is critical to achieving universal health coverage (UHC). The prevalence of symptoms of depression and generalized anxiety disorder symptoms were estimated for 2082 adolescents aged 14-20 years in Chiapas, Mexico. Mental disorders were assessed using the 9-item Patient-Health Questionnaire and the 7-item Generalized Anxiety Disorder Scale. Among the adolescents evaluated, 35.8% suffered from depression or generalized anxiety disorder. Of those, 6.1% reported a previous diagnosis. 32.1% of adolescents with both mental disorders reported having attempted suicide. Gender, substance use, adverse living experiences and living conditions were correlated to the presence of depression and/or generalized anxiety disorder. It is mandatory for Mexican health authorities to develop effective instruments aiming to screen and diagnose mental health conditions in adolescents, as well as to provide timely treatment in primary health-care units.

Identification of Key Genes and the Pathophysiology Associated With Major Depressive Disorder Patients Based on Integrated Bioinformatics Analysis

Background: At present, laboratory blood tests to support major depressive disorder (MDD) diagnosis are not available. This study aimed to screen potential mRNAs for peripheral blood biomarkers and novel pathophysiology of MDD. Methods: The present study utilized public data from two mRNA microarray datasets to analyze the hub genes changes related to MDD. Gene Ontology (GO) analysis and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway analysis of differentially expressed genes (DEGs) were performed. Finally, some potential mRNA quality biomarkers for hub gene expression in blood were identified. Results: A total of 25 significantly co-upregulated DEGs and 98 co-downregulated DEGs were obtained from two datasets. The pathway enrichment analyses showed that co-upregulated genes were significantly enriched in the regulation of cell-matrix adhesion and mitochondrial membrane permeability which were involved in the apoptotic process. Co-downregulated genes were mainly involved in the neutrophil activation which in turn was involved in the immune response, degranulation and cell-mediated immunity, positive regulation of immune response, the Toll-like receptor signaling pathway, and the NOD-like receptor signaling pathway. From the PPI network, 14 hub genes were obtained. Among them, the subnetworks of PLCG1, BCL2A1, TLR8, FADD, and TLR4 screened out from our study have been shown to play a role in immune and inflammation responses. Discussion: The potential molecular mechanisms that have been identified simultaneously include innate immunity, neuroinflammation, and neurotrophic factors for synapse function and development.

Masculinity and Depression: A Longitudinal Investigation of Multidimensional Masculine Norms Among College Men

The transition from high school to college represents a pivotal developmental period that may result in significant maladjustment for first-year college men. Men may feel pressured to "prove" their masculinity by engaging in traditional masculine behaviors that could be negative for their overall well-being. Although adherence to multidimensional masculine norms has been associated with poorer mental health, no studies have examined the role of masculine norms on prospective depressive symptoms among first-year college men. Examining college men's adherence to multidimensional masculine norms longitudinally can offer a promising theoretical framework to explain within-group variability in depression symptomatology. The sample included 322 men from the Mid-Atlantic region of the United States. Masculine norms were assessed during the beginning of their first year of college. Depressive symptomatology was assessed 6 months after the first wave of data collection. Masculine norms were positively and negatively related to prospective depression scores, such that men who endorsed the masculine norms of Self-Reliance, Playboy (i.e., desire to have multiple sexual partners), and Violence, had heightened risk, whereas men who endorsed Winning and Power Over Women were less likely to report depressive symptomatology. Distinct masculine norms appear to confer risk for depression while other norms appear to be protective. This study was the first to examine the role of multidimensional masculine norms on prospective depressive symptomatology among college men. The results suggest that practitioners working with men should consider assessing their clients' adherence to distinct masculine norms and explore how these might be impacting their current mental health.

Nonmedical use of prescription drugs in emerging adulthood: differentiating sex from gender

Male-female variations in health-behavior continue to be of national and international significance with men generally being more likely to be engaged in behaviors that enhance risk across an array of preventable diseases and injuries as well as premature deaths. The literature has identified non-medical use of prescription drugs (NMUPD) as a developing and particularly dangerous substance use behavior among college students. The literature has reported sex differences (male; female) in NMUPD but has yet to explain how gender-orientation (e.g., masculine, feminine) might impact NMUPD. The purpose of this study is to address this gap by examining the influence of gender-orientation on NMUPD. Using survey data collected during the 2013-2014 academic year from a convenience sample of college students at a mid-sized Midwestern university, we examine the association of gender-orientation with NMUPD (N=796). To do this, we separate masculine and feminine scales from the BEM Sex Role Inventory and use logistic regression to test whether masculine or feminine gender characteristics influence the likelihood of NMUPD (lifetime measure of any use and by category). This analysis shows that self-identified characteristics associated with masculinity increase the odds of NMUPD while femininity is associated with lower odds of NMUPD. Findings from this study increase our knowledge of gender-orientation and sex interactions as factors that might influence NMUPD thus demonstrating the importance of differentiating sex from gender-orientation.