Research

The serotonin hypothesis of depression is still influential. We aimed to synthesise and evaluate evidence on whether depression is associated with lowered serotonin concentration or activity in a systematic umbrella review of the principal relevant areas of research.The main areas of serotonin research provide no consistent evidence of there being an association between serotonin and depression, and no support for the hypothesis that depression is caused by lowered serotonin activity or concentrations. Some evidence was consistent with the possibility that long-term antidepressant use reduces serotonin concentration.

Because of the role of play in the epigenetic construction of social brain functions, the young of all mammalian species need sufficient play. For the same reason, the nature of that play becomes an important social policy issue for early childhood development and education. Animal research on this topic indicates that play can facilitate the maturation of behavioral inhibition in growing animals, while psychostimulants reduce playfulness. According to the research, our failure to provide adequate opportunities for natural play in modern societies may have contributed to the steady growth in the diagnosis of Attention Deficit Hyperactivity Disorders (ADHD) in children.

In this study researchers conducted a 12-week, double-blind, placebo-controlled trial comparing the effects of high-dose eicosapentaenoic acid (EPA, 1.2 g) and placebo on cognitive function (continuous performance test) in 92 youth (age 6–18-years-old) with Attention Deficit Hyperactivity Disorder (ADHD). Blood erythrocytes PUFAs were measured before and after treatment, to examine the effects of baseline endogenous EPA levels on treatment response and the effects of EPA treatment on PUFAs levels.

Neurodevelopmental disabilities, including autism, attention-deficit hyperactivity disorder, dyslexia, and other cognitive impairments, affect millions of children worldwide, and some diagnoses seem to be increasing in frequency. Industrial chemicals that injure the developing brain are among the known causes for this rise in prevalence. In this 2006 study, researchers completed a systematic review and identified five industrial chemicals as developmental neurotoxicants: lead, methylmercury, polychlorinated biphenyls, arsenic, and toluene with the possibility of others that may be unknown in the environment.

The microbiome consists of microbes that are both helpful and potentially harmful. Most are symbiotic (where both the human body and microbiota benefit) and some, in smaller numbers, are pathogenic (promoting disease). In a healthy body, pathogenic and symbiotic microbiota coexist without problems. But if there is a disturbance in that balance—brought on by infectious illnesses, certain diets, or the prolonged use of antibiotics or other bacteria-destroying medications—dysbiosis occurs, stopping these normal interactions. As a result, the body may become more susceptible to disease. This article provides information about the microbiome and its affect on mental health.

Growing evidence supports the hypothesis that epigenetics is a key mechanism through which environmental exposures interact with an individual’s genetic constitution to determine risk for depression throughout life. Epigenetics, in its broadest meaning, refers to stable changes in gene expression that are mediated via altered chromatin structure without modification of DNA sequence. According to this hypothesis, severe stress triggers changes—in vulnerable individuals—in chromatin structure at particular genomic loci in the brain’s limbic regions, which drive sustained changes in gene expression that contribute to episodes of depression.

In a pilot study aimed at investigating the effectiveness of targeted nutrient therapy, the clinical progress of 567 patients with a range
of mental illnesses receiving established medical treatment in conjunction with a targeted nutrient program were assessed by clinical outcome after 12 months.

In a previous clinical study, a probiotic formulation (PF) consisting of Lactobacillus helveticus R0052 and Bifidobacterium longum R0175 (PF) decreased stress-induced gastrointestinal discomfort. Emerging evidence of a role for gut microbiota on central nervous system functions therefore suggests that oral intake of probiotics may have beneficial consequences on mood and psychological distress. The aim of the present study was to investigate the anxiolytic-like activity of PF in rats, and its possible effects on anxiety, depression, stress and coping strategies in healthy human volunteers.

In this article, the interviewer speaks with Dr. Kelly Brogan, a leading voice in natural approaches to women’s mental health. With degrees from MIT and Weil Cornell Medical College, triple board certification in psychiatry, psychosomatic medicine and integrative holistic medicine, and direct experience practicing within the parameters of conventional psychiatry, Dr. Brogan is uniquely qualified to challenge the pseudoscience of the chemical imbalance theory and the drug regimens that it spawned. This conversation addressed Dr. Brogan’s grave concerns about the recent rollout of Zulresso (brexanolone), a drug specifically designed, and approved by the FDA for the treatment of Postpartum Depression.

Dr. Allen Frances, former Chair of Department of Psychiatry, gives the 50 most important things he has learned in his 50 years studying psychiatry. This list is to better help young psychiatrists better advocate for their patients.

The best approach to ensure you get a variety of vitamins and minerals, and in the proper amounts, is to adopt a broad healthy diet. This involves an emphasis on fruits and vegetables, whole grains, beans and legumes, low-fat protein, and dairy products. The good news is that many common foods contain multiple mineral and vitamin sources, so it is easy to meet your daily needs from everyday meals.