Violence is a critical challenge for society and it disproportionately affects young people. Violence experienced in an intimate relationship is associated with attempted suicide, depression and post-traumatic stress disorder, as well as poorer physical health. Interventions to limit intimate partner violence, especially in adolescents and young people, are a priority. This commentary examines a systematic review and meta-analysis of educational interventions for relationship and dating violence in young people aged 12–25 years. Random-effects meta-analysis revealed a small statistical effect on knowledge, but no statistical associations with reduced violence. None of the included studies assessed health outcomes. The reviewers recommend further investigation of educational interventions in low- and middle-income settings, and studies with longer follow-up.

This article discusses findings from the literature and our own research related to the experience of the diagnostic process in mental healthcare, primarily from the perspective of patients, and it focuses on the benefits of collaboration. A common finding throughout our research is that, if a diagnostic process is undertaken, the majority of patients want to be actively involved and feel valued in it. This helps ensure that they find the process and the resulting diagnosis to be meaningful, informative and useful. We believe that collaboration could also mitigate some of the reported negative unintended consequences of diagnosis, including feeling stigmatised, labelled and disempowered. Our work has led us to conceive of diagnosis as having two overarching elements: the diagnostic process and the resulting diagnostic label. This article focuses specifically on the diagnostic process; we do not consider here the debate surrounding the evidence base for the validity of psychiatric classification.

There is growing evidence to support recovery and rehabilitation services and interventions for people with severe mental illness (SMI). However, those from ethnic minority communities face inequitable outcomes and access to mental health services and poorer functional outcomes. This article reviews the evidence and discusses facilitators and barriers in the recovery journey of people with SMI from ethnic minority groups. Although there is limited evidence for specific interventions for ethnic minority patients, areas for future study and action are discussed.

This article describes how the core principles and techniques of transference-focused psychotherapy (TFP) can be used in general psychiatry to help in the management of patients with borderline personality disorder (or other moderate to severe personality disorders). It focuses on: knowledge – appreciating how an understanding of object relations assists the clinician in assessment and treatment; attitude – developing a stance to manage the confusing and negative feelings that may arise in both clinician and patient; and skills – describing how use of TFP techniques (technical neutrality, analysing the transference and countertransference, and judicious use of interpretation) helps the clinician to continue thinking in the fraught clinical encounter. The structural (including contemporary object relations) and structured approach in TFP are exemplified in clinical vignettes.

Transference-focused psychotherapy concepts and techniques have much to offer experienced psychiatrists and psychiatrists in training in their work with patients with borderline personality disorder and, as a consequence, help address the stigmatisation of this group of patients and improve their clinical care.

Evidence from preclinical and clinical studies supports a role for vitamin D deficiency in many mental disorders. In this review, we discuss the role of vitamin D in the aetiology and treatment of schizophrenia and depression and their physical health comorbidities. Although observational studies support a potential association between vitamin D and schizophrenia and depression, sufficient high-quality evidence from clinical trials does not yet exist to establish a place for vitamin D supplementation in optimising clinical response or promoting physical health. Completed randomised controlled trials are needed to provide insights into the efficacy and safety of vitamin D in the management of mental disorders.

A review of studies on vitamin D in schizophrenia and depression found insufficient evidence to inform advice for clinicians. On the basis of the review, I suggest advice for researchers, including better controlling for confounders in observational studies, testing the reverse causality hypothesis, studying vitamin D as a treatment or prevention specifically in patients with more pigmented skin, and prospective community trials of vitamin D supplementation combined with lifestyle advice.

Miscarriages of justice occur as a result of unsafe convictions and findings and inappropriate sentences. In cases involving expert psychiatric evidence it is possible that the way evidence is presented by experts or interpreted by the courts has a direct bearing on the case. Using illustrative cases from the Criminal Division of the Court of Appeal, advice is offered to expert psychiatric witnesses on ways to reduce the likelihood of contributing to such miscarriages of justice and on how they may assist in rectifying such miscarriages, should they occur.

The author reflects on discoveries over the course of a century concerning histamine as a potent chemical signal and neurotransmitter, the development of antihistamines, including promethazine, and chlorpromazine from a common precursor, and the recognition of a major brain pathway involving histamine. Although chlorpromazine has been succeeded by numerous other antipsychotics, promethazine remains the antihistamine recommended for sedation in acutely disturbed patients, largely because it is potently anticholinergic at atropinic muscarinic receptors and therefore anti-Parkinsonian: this means it is also useful in combination with older antipsychotics such as haloperidol.