Healthcare professionals' views on supporting young mothers with eating and moving during and after pregnancy: An interview study using the COM-B framework.

Young mothers under the age of 20 often have poor nutrition and low levels of physical activity, adversely affecting outcomes for themselves and their babies. The aim of this qualitative study was to explore the experiences of healthcare professionals in supporting young women around eating and moving during and after pregnancy. Seventeen semi-structured interviews were conducted with midwives, family nurse practitioners and health visitors involved in the care of pregnant and post-natal mothers under the age of 20 in England and Wales. Data were analysed using thematic analysis and coded within the theoretical framework of the COM-B model to three areas of capability, motivation and opportunity. For capability, participants were broadly divided between those who had specialist knowledge and training in communication skills to support health behaviours in this population and professionals reliant on tacit knowledge. For opportunity, having enough time was seen as critical because young women's difficult social contexts meant supporting improved health behaviours required relationships of trust to be built. For motivation, participants reported that supporting young women with eating and moving was part of their role. However, the decision to prioritise this support sometimes related to perceived need based on BMI and this was complicated as young women were still growing. Motivation was additionally connected to professionals' own body experiences and health behaviours. Moving habits were less frequently discussed than eating as professionals described how young women tended to walk a lot in their daily lives or found that young women were not interested. Results suggest that to support eating and moving behaviours with young women, professionals need to be trained in communication techniques, enabled with the time to hold space for young women and be able to reflect on their own attitudes and beliefs to support a rounded model of health and wellbeing.

Quantitative detection of nitroxyl upon trapping with glutathione and labeling with a specific fluorogenic reagent.

Donors of nitroxyl (HNO) have shown promise for treatment of stroke, heart failure, alcoholism and cancer. However, comparing the pharmacological capacities of various donors is difficult without first quantifying the amount of HNO released from each donor. Detection and quantitation of HNO has been complicated by the rapid self-consumption of HNO through irreversible dimerization, poor selectivity of trapping agents against other nitrogen oxides, and/or low sensitivity towards HNO. Here, an assay is described for the trapping of HNO by glutathione (GSH) followed by labeling of GSH with the fluorogenic agent, naphthalene-2,3-dicarboxaldehyde (NDA), and subsequent quantitation by fluorescence difference. The newly developed assay was used to validate the pH-dependence of HNO release from isopropylamine NONOate (IPA/NO), which is a dual donor of HNO and NO at physiological pH. Furthermore, varied assay conditions were utilized to suggest the ratios of the products of the reaction of GSH with HNO. At intracellular concentrations of GSH, the disulfide (GSSG) was the major product, but significant concentrations of glutathione sulfinamide (GS(O)NH2) were also detected. This suggests that GS(O)NH2, which is a selective biomarker of HNO, may be produced in concentrations that are amenable to in vivo analysis.

The specificity of nitroxyl chemistry is unique among nitrogen oxides in biological systems.

The importance of nitric oxide in mammalian physiology has been known for nearly 30 years. Similar attention for other nitrogen oxides such as nitroxyl (HNO) has been more recent. While there has been speculation as to the biosynthesis of HNO, its pharmacological benefits have been demonstrated in several pathophysiological settings such as cardiovascular disorders, cancer, and alcoholism. The chemical biology of HNO has been identified as related to, but unique from, that of its redox congener nitric oxide. A summary of these findings as well as a discussion of possible endogenous sources of HNO is presented in this review.