Paraneoplastic pemphigus: Diagnostic mimics, confounders and management challenges in a series of five long-term survivors from a single centre.

We present a series of five cases who presented to our institution with treatment-refractory mucosal ulceration, all of whom were subsequently diagnosed with paraneoplastic pemphigus (PNP). This case series highlights the diagnostic and treatment considerations for PNP - in particular, the steroid-dependent, recalcitrant, polymorphic manifestations; the combination of histopathological and clinical findings that may overlap with clinically similar diseases, for example, pemphigus vulgaris and lichen planus; the importance of immunopathological findings for its diagnosis, and the need for surveillance and management of life-threatening bronchiolitis obliterans.

A Novel Cartesian Plot Analysis for Fixed Monolayers That Relates Cell Phenotype to Transfer of Contents between Fibroblasts and Cancer Cells by Cell-Projection Pumping.

We recently described cell-projection pumping as a mechanism transferring cytoplasm between cells. The uptake of fibroblast cytoplasm by co-cultured SAOS-2 osteosarcoma cells changes SAOS-2 morphology and increases cell migration and proliferation, as seen by single-cell tracking and in FACS separated SAOS-2 from co-cultures. Morphological changes in SAOS-2 seen by single cell tracking are consistent with previous observations in fixed monolayers of SAOS-2 co-cultures. Notably, earlier studies with fixed co-cultures were limited by the absence of a quantitative method for identifying sub-populations of co-cultured cells, or for quantitating transfer relative to control populations of SAOS-2 or fibroblasts cultured alone. We now overcome that limitation by a novel Cartesian plot analysis that identifies individual co-cultured cells as belonging to one of five distinct cell populations, and also gives numerical measure of similarity to control cell populations. We verified the utility of the method by first confirming the previously established relationship between SAOS-2 morphology and uptake of fibroblast contents, and also demonstrated similar effects in other cancer cell lines including from melanomas, and cancers of the ovary and colon. The method was extended to examine global DNA methylation, and while there was no clear effect on SAOS-2 DNA methylation, co-cultured fibroblasts had greatly reduced DNA methylation, similar to cancer associated fibroblasts.

Is oral dysaesthesia a somatic symptom disorder?

Oral dysaesthesia is a condition characterised by persistent alteration to oral sensation, perceived by the patient to be abnormal and unpleasant, in the absence of mucosal pathology. Its aetiology remains uncertain. The condition was attributed as a psychosomatic disease for much of the 20th century, but with newer technologies, recent literature has mostly focused on a possible peripheral or central neuropathic aetiology to oral dysaesthesia. Despite this, psychotropic medications and psychological treatments remain forefront in the armamentarium for the management of oral dysaesthesia. This article aims to review the literature surrounding the pathogenesis of oral dysaesthesia and explore whether oral dysaesthesia is a somatic symptom disorder.

Direct-to-consumer advertising: Australian pharmacists' experiences with non-prescription medicines.

OBJECTIVE: Direct-to-consumer advertising (DTCA) of over-the-counter or prescribed medicines is a highly controversial issue relating to public health care. Advocates highlight the advantages of DTCA in terms of patient awareness and autonomy. Opponents voice concerns about safety and patients' best interests. The views of physicians and consumers about DTCA have been widely investigated. There has been little research, however, in relation to pharmacists' experiences with DTCA and the impact of DTCA on pharmacy practice. The aim of this study was therefore to explore pharmacists' perceptions of DTCA in Australia and its impact on pharmacy practice. METHODS: A semi-structured in-depth interview was conducted with a purposive convenience sample of retail pharmacists in Sydney, Australia. Interviews were recorded, transcribed ad verbatim and continued until data saturation. Emerging themes were extracted and analysed according to the grounded theory approach. KEY FINDINGS: Pharmacists participating in this study reported concern about potential harm to patient health and well-being as a result of the influence of DTCA. DTCA was seen to impede pharmacists in the discharge of their fundamental ethical responsibilities, leading to a strong sense of disempowerment. Pharmacists' gate-keeping role was challenged by DTCA encouraging consumers to self-medicate and inducing a range of drug-seeking behaviours. Although pharmacists acknowledged that DTCA may have a role in promoting patient autonomy, in practice DTCA compromised their role in safeguarding consumers from inappropriate use of medicines. CONCLUSIONS: This study highlighted that the impact of DTCA is not restricted to prescription medicines, but extended also to over-the-counter, pharmacist-only and other pharmacy-related products. Pharmacists perceived that DTCA disempowered them, compromising their role in safeguarding the community from inappropriate medicine use.