Depression is a multifactorial psychiatric condition with complex pathophysiology, increasingly linked to neuroinflammatory processes. The present review explores the role of neuroinflammation in depression, focusing on glial cell activation, cytokine signaling, blood–brain barrier dysfunction, and disruptions in neurotransmitter systems. The article highlights how inflammatory mediators influence brain regions implicated in mood regulation, such as the hippocampus, amygdala, and prefrontal cortex. The review further discusses the involvement of the hypothalamic–pituitary–adrenal (HPA) axis, oxidative stress, and the kynurenine pathway, providing mechanistic insights into how chronic inflammation may underlie emotional and cognitive symptoms of depression. The bidirectional relationship between inflammation and depressive symptoms is emphasized, along with the role of peripheral immune responses and systemic stress. By integrating molecular, cellular, and neuroendocrine perspectives, this review supports the growing field of immunopsychiatry and lays the foundation for novel diagnostic biomarkers and anti-inflammatory treatment approaches in depression. Further research in this field holds promise for developing more effective and personalized interventions for individuals suffering from depression.

The relationship between neuroinflammation and depression is a complex area of research that has garnered significant attention in recent years. Neuroinflammation, characterized by the activation of glial cells and the release of pro-inflammatory cytokines, has been implicated in the pathophysiology of depression. The relationship between neuroinflammation and depression is bidirectional; not only can inflammation contribute to the onset of depressive symptoms, but depression itself can also exacerbate inflammatory responses, creating a vicious cycle that complicates treatment and recovery. The present comprehensive review aimed to explore the current findings on the interplay between neuroinflammation and depression, as well as the mechanisms, risk factors, and therapeutic implications. The mechanisms by which neuroinflammation induces depressive-like behaviors are diverse. Neuroinflammation can increase pro-inflammatory cytokines, activate the hypothalamus–pituitary–adrenal (HPA) axis, and impair serotonin synthesis, all of which contribute to depressive symptoms. Furthermore, the activation of microglia has been linked to the release of inflammatory mediators that can disrupt neuronal function and contribute to mood disorders. Stress-induced neuroinflammatory responses can lead to the release of pro-inflammatory cytokines that not only affect brain function but also influence behavior and mood. Understanding these mechanisms is crucial for developing targeted therapies that can mitigate the effects of neuroinflammation on mood disorders.

(1) Background: Family factors play an important role in the management of diabetes, establishing a relationship between conflicts and non-adherence to therapy. High values of HbA1c are involved in specific complications of the disease (retinopathy, nephropathy, neuropathy, ketoacidosis). This study aimed to determine the role of systemic family psychotherapeutic interventions in increasing the quality of parent–child/adolescent relationships and in optimizing the child’s glycemic control. (2) Methods: In this prospective observational study, 64 parents of children and adolescents with type 1 diabetes were evaluated regarding their relationship with their children, using the Child–Parent Relationship Scale-Short Form (CPRS-short form). The children were divided into three groups: one participated for 6 months in systemic family psychotherapy with children and their parents (FT), the second group participated in individual psychotherapy (IT), and the control group (CG) received no intervention. HbA1c values were recorded before and after the interventions. (3) Results: HbA1c means decreased significantly after the family psychotherapy program. The scores on closeness in the family therapy group increased significantly, and the scores on conflict decreased significantly after the intervention, compared with IT and CG. (4) Conclusions: Systemic family psychotherapy produces better results in disease management and in strengthening parent–child relationships.

Inflammatory bowel disease (IBD), which includes Crohn’s disease, ulcerative colitis, and unspecified inflammatory bowel disease, is a chronic, unpredictable and immune-mediated condition of the gastrointestinal tract. In pediatric populations, the diagnosis of a chronic and debilitating pathology significantly reduces quality of life. Children diagnosed with IBD may cope with physical symptoms such as abdominal pain or fatigue, but mental and emotional well-being are also important for preventing and reducing the risk of developing psychiatric conditions. Short stature, growth delay and delayed puberty can contribute to poor body image and low self-esteem. Furthermore, treatment per se can alter psycho-social functioning due to the side effects of medication and surgical procedures such as colostomy. It is essential to acknowledge and treat early signs and symptoms of psychiatric distress in order to prevent the development of serious psychiatric disorders in adult life. The literature underlines the importance of incorporating psychological and mental health services as part of the management of inflammatory bowel disease. Diagnosing mental health problems in pediatric patients with IBD can improve their adherence to treatment and pathology course and, consequently, reduce long-term morbidity and mortality.

Assessing mental health in children and adolescents with insulin-dependent diabetes (IDD) is an issue that is underperformed in clinical practice and outpatient clinics. The evaluation of their thoughts, emotions and behaviors has an important role in understanding the interaction between the individual and the disease, the factors that can influence this interaction, as well as the effective methods of intervention. The aim of this study is to identify psychopathology in adolescents with diabetes and the impact on treatment management. A total of 54 adolescents with IDD and 52 adolescents without diabetes, aged 12–18 years, completed APS–SF (Adolescent Psychopathology Scale–Short Form) for the evaluation of psychopathology and adjustment problems. There were no significant differences between adolescents with diabetes and control group regarding psychopathology. Between adolescents with good treatment adherence (HbA1c < 7.6) and those with low treatment adherence (HbA1c > 7.6), significant differences were found. In addition, results showed higher scores in girls compared with boys with IDD with regard to anxiety (GAD), Major Depression (DEP), Post-Traumatic Stress Disorder (PTSD), Eating Disturbance (EAT), Suicide (SUI) and Interpersonal Problems (IPP). No significant differences were found regarding the duration of the disease. Strategies such as maladaptive coping, passivity, distorted conception of the self and the surrounding world and using the negative problem-solving strategies of non-involvement and abandonment had positive correlation with poor glycemic control (bad management of the disease). The study highlighted the importance of promoting mental health in insulin-dependent diabetes management.

Adolescence represents a critical developmental stage where diet, gut microorganisms, and mental health are strongly interconnected. The current literature evidences the bidirectional role between dietary habits and psychological well-being, which is mediated by the gut–brain axis. The purpose of this review is to highlight the importance of dietary habits in adolescence period and the impact of different food choices on microbiota and secondary on mental health. Gut microbiota plays a vital role in the synthesis of neurotransmitters such as serotonin, dopamine, noradrenaline, and metabolites like short-chain fatty acids (SCFAs). The disruption in the composition of microbiota is called dysbiosis, which has been associated with a systemic inflammation state and chronic stress. They contribute to the onset of psychiatric disorders including MDD, anxiety, ADHD, and autism. Diets with a high quantity of sugar and low fiber contribute to alteration of microbiota and poor mental health. Additionally, early-life stress, antibiotic usage, and chronic inflammation may alter bacterial communities, with long-term implications for adolescents mental health. Dietary interventions, including the intake of prebiotics, probiotics, SCFAs, and micronutrients could restore microbial balance and improve psychiatric symptoms. This literature review highlights the critical role of diet and gut microbiota for adolescent mental health and emphasizes the need for integrative strategies to promote psychological resilience through microbiome regulation.