Effectiveness of spaced education pedagogy in enhancing Nurses' knowledge on emotional resilience-A quasi-experimental trial.

INTRODUCTION: Building resilience among nurses has been postulated as one of the key strategies to support nurses and retain them in the profession. This study aimed to evaluate the effectiveness, of spaced education pedagogy in enhancing Nurses' knowledge on emotional resilience. Secondary objectives include evaluation of the usability and acceptability of delivery of the training via a mobile application in one's own mobile device. DESIGN: A quasi-experimental study with single group pre-test and post-test trial was conducted. METHODS: Full-time registered nurses working in an acute care hospital were invited to participate from June 2021 to June 2022. The group used the mobile application daily for 1 month. Pre-test measurement includes socio-demographic data and baseline resilience level before the intervention. Post-test measurement includes resilience level, usability and acceptability of mobile-assisted cognitive-behavioral therapy measured upon completion of the training. The mobile application enabled the delivery of resilience educational content in small quantities through a repeating manner, with a concurrent evaluation of learner's understanding. RESULTS: When compared to their baseline (mean = 24.38, SD = 5.50), participants reported significant increase in the Connor-Davison Resilience Scale score (mean = 26.33, SD = 5.57) (t = -4.40, p < 0.001). Upon 1 month usage of the mobile application, a higher percentage of the participants reported intermediate to high level of resilience (57.4%), as compared to prior usage (54.7%). Respondents reported knowledge of most useful strategies for their daily lives including: (i) managing negative emotions (54.1%); (ii) psychoeducation about mental health and the risks of burnout (44.7%); (iii) achieving work and life balance (43.5%); and (iv) depiction of workplace scenarios to demonstrate what can be and cannot be controlled during times of change (43.5%). Participants reported usability of the mobile application with a mean SUS score 70.5 (SD = 13.0), which was considered "acceptable." Overall, 82.3% of the participants found the mobile application appealing, 64.7% reported they were likely to use the mobile application in the future and 72.9% would recommend it to other nurses. CONCLUSION: The mobile application provided nurses with the availability and convenience to access resilience building learning content integrated with the spaced education pedagogy. CLINICAL RELEVANCE: The use of mobile-assisted cognitive behavioral training can aid in increasing nurses' resilience level. Nurses provided acceptable usability ratings and satisfactory acceptance of receiving training via the mobile application, showing promising opportunities in the improvement of overall well-being.

Reducing anxiety and enhancing satisfaction in thyroid patients with DietLens application during radioactive iodine therapy: A quasi-experimental study.

Hyperthyroidism and thyroid cancer significantly impact health, and often require Radioactive Iodine (RAI) therapy. Anxiety is common in patients undergoing RAI, particularly related to dietary compliance. This study aimed to assess the effectiveness of the mobile health application, DietLens in reducing anxiety and increasing satisfaction in patients preparing for RAI therapy, focusing on low-iodine diet (LID). A quasi-experimental study was conducted in a Singapore tertiary hospital outpatient department from March 13, 2019 to March 27, 2020, involving patients scheduled for their first RAI treatment. Participants were divided into a control group receiving standard care and an intervention group using DietLens alongside standard care. Anxiety levels were assessed using the Zung Self-Rating Anxiety Scale, and satisfaction levels were measured through self-reported questionnaires. In the study, 56 participants were initially divided into control (n = 28) and intervention (n = 28) groups. After accounting for dropouts, 50 participants finished the study, with each group comprising 25 individuals. Anxiety levels were similar between groups pre-intervention. Post-intervention, the intervention group displayed a significant decrease in anxiety levels compared to the control group (independent t-test: t (48) = 2.50, p = 0.02). The multivariate linear regression analysis indicated that being in the intervention group was significantly associated with a decrease in post-intervention anxiety score (ß = -4.03, 95 % CI: -7.33 to -0.72, p = 0.02). Fisher's Exact Test revealed a borderline significant difference in satisfaction with educational materials and the overall treatment process, with 100 % of the intervention group expressing satisfaction compared to 80 % in the control group, resulting in a p-value of 0.052 in both instances. DietLens was effective in reducing anxiety and enhancing satisfaction related to RAI therapy preparation, particularly in managing a LID, highlighting a beneficial role for digital interventions in healthcare settings.

Reporting guidelines for precision medicine research of clinical relevance: the BePRECISE checklist.

Precision medicine should aspire to reduce error and improve accuracy in medical and health recommendations by comparison with contemporary practice, while maintaining safety and cost-effectiveness. The etiology, clinical manifestation and prognosis of diseases such as obesity, diabetes, cardiovascular disease, kidney disease and fatty liver disease are heterogeneous. Without standardized reporting, this heterogeneity, combined with the diversity of research tools used in precision medicine studies, makes comparisons across studies and implementation of the findings challenging. Specific recommendations for reporting precision medicine research do not currently exist. The BePRECISE (Better Precision-data Reporting of Evidence from Clinical Intervention Studies & Epidemiology) consortium, comprising 23 experts in precision medicine, cardiometabolic diseases, statistics, editorial and lived experience, conducted a scoping review and participated in a modified Delphi and nominal group technique process to develop guidelines for reporting precision medicine research. The BePRECISE checklist comprises 23 items organized into 5 sections that align with typical sections of a scientific publication. A specific section about health equity serves to encourage precision medicine research to be inclusive of individuals and communities that are traditionally under-represented in clinical research and/or underserved by health systems. Adoption of BePRECISE by investigators, reviewers and editors will facilitate and accelerate equitable clinical implementation of precision medicine.

Peperomia pellucida (L.) Kunth suppresses glycation-induced inflammatory response in human retinal pigment epithelial cell line ARPE-19 via JAK-STAT3 signaling.

The formation of advanced glycation end product (AGE) is a risk factor for diabetic retinopathy. Since the current treatment for diabetic retinopathy is accompanied by side effects, preliminary findings have suggested Peperomia pellucida (L.) Kunth as a potential alternative therapeutic option for diabetic retinopathy. This study aimed to elucidate the anti-inflammatory mechanism of P. pellucida in the AGE-stimulated human retinal pigment epithelial cell line ARPE-19. Phytochemical analysis revealed phenylpronanoids, terpenes, and fatty acids in P. pellucida. Through in vitro cell viability assay, the P. pellucida methanolic extract (IC50 = 8.70 mg/mL) and ethyl acetate fraction (IC50 = 7.34 mg/mL) were considered as non toxic for ARPE-19. AGE induced an inflammatory response in ARPE-19 by upregulating the gene (2.4-5.8-fold) and protein (1.4-2.3-fold) expression of signal transducer and activator of transcription 3 (STAT3), interleukin-8 (IL-8), monocyte chemoattractant protein-1, matrix metalloproteinase 2, and vascular endothelial growth factor. At 1.5 mg/mL, P. pellucida methanolic extract suppressed IL-8 expression (p < 0.05), implying its anti-inflammatory action at the early inflammatory stage through the Janus kinase (JAK)-STAT3 pathway. The methanolic extract also restored the ARPE-19 viability under AGE-induced inflammatory stress. The downregulation of inflammatory biomarkers along the JAK-STAT3 pathway suggested P. pellucida as a promising anti-inflammatory source for diabetic retinopathy.

Preferred lifestyle intervention characteristics and behaviour change needs of postpartum women following cardiometabolic pregnancy complications.

BACKGROUND: Women with cardiometabolic pregnancy complications are at increased risk of future diabetes and heart disease which can be reduced through lifestyle management postpartum. OBJECTIVES: This study aimed to explore preferred intervention characteristics and behaviour change needs of women with or without prior cardiometabolic pregnancy complications for engaging in postpartum lifestyle interventions. DESIGN: Quantitative cross-sectional study. METHODS: Online survey. RESULTS: Overall, 473 women were included, 207 (gestational diabetes (n = 105), gestational hypertension (n = 39), preeclampsia (n = 35), preterm birth (n = 65) and small for gestational age (n = 23)) with and 266 without prior cardiometabolic pregnancy complications. Women with and without complications had similar intervention preferences, with delivery ideally by a healthcare professional with expertise in women's health, occurring during maternal child health nurse visits or online, commencing 7 weeks to 3 months post birth, with 15- to 30-min monthly sessions, lasting 1 year and including monitoring of progress and social support. Women with prior complications preferred intervention content on women's health, mental health, exercise, mother's diet and their children's health and needed to know more about how to change behaviour, have more time to do it and feel they want to do it enough to participate. There were significant differences between groups, with more women with prior cardiometabolic pregnancy complications wanting content on women's health (87.9% vs 80.8%, p = 0.037), mother's diet (72.5% vs 60.5%, p = 0.007), preventing diabetes or heart disease (43.5% vs 27.4%, p < 0.001) and exercise after birth (78.3% vs 68.0%, p = 0.014), having someone to monitor their progress (69.6% vs 58.6%, p = 0.014), needing the necessary materials (47.3% vs 37.6%, p = 0.033), triggers to prompt them (44.0% vs 31.6%, p = 0.006) and feeling they want to do it enough (73.4%, 63.2%, p = 0.018). CONCLUSION: These unique preferences should be considered in future postpartum lifestyle interventions to enhance engagement, improve health and reduce risk of future cardiometabolic disease in these high-risk women.

Medium-term storage of frozen residual antenatal sera in gel separator tube is suitable for subsequent serological investigation of intrauterine infection.

AIM: We assessed the feasibility of storing sera in primary gel separator tube over medium-term for retrospective serological tests to facilitate investigation of intra-uterine infection. METHOD: 120 residual serum samples, consisting of 30 positive samples each for rubella, cytomegalovirus, parvovirus B19 and varicella zoster IgG were aliquoted into secondary propylene tubes and stored together with the original primary tubes at -20°C for 1 year. The serum was subsequently retested to compare results from both storage methods. RESULTS: Haemolysis was observed in 49.2% of serum stored in the primary tubes. However, there was no difference in both the qualitative and quantitative results after storage of serum samples in either receptacle. CONCLUSION: Sera can be stored in primary blood tube for up to 1 year without affecting serological results. For laboratories with adequate freezer space to store samples in primary blood tubes, this would streamline workflow saving manpower and time, avoid mislabelling of aliquots, reduce consumable costs and prevent unnecessary biohazard exposures.

An SNP Marker Predicts Colorectal Cancer Outcomes with 5-Fluorouracil-Based Adjuvant Chemotherapy Post-Resection.

Colorectal cancer (CRC) is a global health concern, necessitating adjuvant chemotherapy post-curative surgery to mitigate recurrence and enhance survival, particularly in intermediate-stage patients. However, existing therapeutic disparities highlight the need for biomarker-guided adjuvant chemotherapy to achieve better CRC inhibition. This study explores the molecular mechanisms underlying the inhibition of CRC through a genome-wide association study (GWAS) focused on 5-fluorouracil (5-FU)-based adjuvant therapy in intermediate-stage CRC patients, a domain previously unexplored. We retrospectively included 226 intermediate-stage CRC patients undergoing surgical resection followed by 5-FU-based adjuvant chemotherapy. The exploration cohort comprised 31 patients, and the validation cohort included 195 individuals. Genotyping was carried out using either Axiom Genome-Wide TWB 2.0 Array Plate-based or polymerase chain reaction-based methods on genomic DNA derived from collected tissue samples. Statistical analyses involved descriptive statistics, Kaplan-Meier analyses, and Cox proportional hazard analyses. From the GWAS, potential genetic predictors, GALNT14-rs62139523 and DNMBP-rs10786578 genotypes, of 5-FU-based adjuvant therapy following surgery in intermediate-stage CRC patients were identified. Validation in a larger cohort of 195 patients emphasized the predictive significance of GALNT14-rs62139523 genotypes, especially the "A/G" genotype, for improved overall and progression-free survival. This predictive association remained robust across various subgroups, with exceptions for specific demographic and clinical parameters such as age < 58 years old, CEA ≤ 2.5 ng/mL, tumor diameter > 44.0 mm, and tumor-free margin ≥ 50 mm. This study identifies that the GALNT14-rs62139523 "A/G" genotype modulates therapeutic outcomes, establishing it as a promising biomarker for predicting favorable responses to 5-FU-based adjuvant chemotherapy in intermediate-stage CRC patients, although further investigations are needed to detail these mechanisms.

Effects of Parental Predictors on Postpartum Depression.

BACKGROUND: Postpartum depression (PPD) is highly prevalent and plagues a significant proportion of parents. Postpartum depression also exerts various negative consequences on infant development and parent-infant relationships. Social support is identified as an important factor influencing many parental predictors, and may affect the development of PPD. OBJECTIVE: This study aimed to investigate how perceived social support can indirectly influence PPD symptoms in parents at 6 months postpartum by influencing postpartum anxiety, parental satisfaction, and parental self-efficacy (PSE). METHODS: A secondary analysis of data from a randomized controlled trial was used with a cross-sectional exploratory design. A total of 400 Singaporean parents (200 couples) were included, and structural equation modeling was used to analyze the relationships between PPD and potential predictors. RESULTS: Findings revealed a less adequate fit between the hypothesized model and the data collected. Social support was found to be a significant predictor of postpartum anxiety, PSE, and parental satisfaction. Postpartum anxiety was a significant predictor of PPD, but PSE and parental satisfaction were not. CONCLUSION: This study provides an overview of how different parental predictors may be associated with PPD among Asian parents. Postpartum anxiety significantly predicted PPD, but social support had negative effects on postpartum anxiety, parenting satisfaction, and PSE. The findings provide further insight into how parents at risk of PPD can be identified and demonstrated how social support might negatively impact parental outcomes. More qualitative research with Asian parents is needed to further explain these findings and inform the development of future interventions.

Second victim experiences and impact among acute care nurses: An exploratory study.

AIM: To explore the experience of second victim symptoms and adverse outcomes among nurses working in public healthcare institutions; understand the preferred components of a structured support programme; and explore the barriers to accessing existing support strategies. BACKGROUND: The second victim phenomenon is experienced by nurses during patient-related adverse events, requiring further exploration. METHODS: A mixed-methods design. Second Victim Experience and Support Tool and semi-structured individual interviews were used among nurses involved in adverse events that occurred from January 2022 to April 2023. Descriptive statistics was used to describe sociodemographic characteristics and survey responses. Thematic analysis was used to analyse qualitative data. RESULTS: Nurses (n = 12) experienced second victim-related physical, psychological and professional distress (58.3% to 83.3%) within one month after the event. Nurses continued to experience second victim-related distress (58.3%) three months after and turnover intentions (58.4%). Having a respected peer to discuss what happened was the most desired component of a support programme (75.0%). Five qualitative themes: (i) whirlwind of immediate emotions, (ii) lasting impact of adverse events, (iii) organisational barriers, (iv) coping resources at organisational level and (v) positive individual coping strategies. DISCUSSION: Nurses experienced immediate and profound distress, highlighting the pervasive and distressing nature of the second victim phenomenon. CONCLUSION: It is critical to recognise the second victim phenomenon and improve organisational climate to provide adequate support to affected nurses. IMPLICATIONS FOR NURSING AND HEALTH POLICY: Organisations can establish a structured second victim support system, allowing nurses to seek emotional aid during the occurrence of adverse events. Establishing national policies as guidelines for organisations to refer to, raise awareness of the second victim phenomenon, and provide a standardised approach for identification and intervention for affected nurses.

Health System and Individual Barriers to Supporting Healthy Gestational Weight Gain and Nutrition: A Qualitative Study of the Experiences of Midwives and Obstetricians in Publicly Funded Antenatal Care in Tasmania, Australia.

Individual and health system barriers can impede clinicians from supporting weight-related behaviour change for pregnant women, particularly in publicly funded antenatal care accessed by women from diverse socioeconomic backgrounds. The aim was to understand clinicians' experiences of supporting healthy gestational weight gain for pregnant women in a publicly funded antenatal setting. The work was undertaken to guide the implementation of systems changes, resource development, and workforce capacity building related to nutrition, physical activity, and gestational weight gain in the service. The qualitative descriptive study used purposive sampling and semi-structured interviews conducted between October 2019 and February 2020. Nine midwives and five obstetricians from a publicly funded hospital antenatal service in Tasmania, Australia participated. Interview transcripts were analysed using inductive thematic analysis. The three dominant themes were prioritising immediate needs, continuity of care support weight-related conversations, and limited service capacity for weight- and nutrition-related support. The subthemes were different practices for women according to weight and the need for appropriately tailored resources. Improving access to continuity of care and clinician training, and providing resources that appropriately consider women's socioeconomic circumstances and health literacy would enhance the ability and opportunities for clinicians to better support all women.

Molecular profiling of metastatic breast cancer and target-based therapeutic matching in an Asian tertiary phase I oncology unit.

Introduction: Molecular profiling of metastatic breast cancer (MBC) through the widespread use of next-generation sequencing (NGS) has highlighted actionable mutations and driven trials of targeted therapy matched to tumour molecular profiles, with improved outcomes reported using such an approach. Here, we review NGS results and treatment outcomes for a cohort of Asian MBC patients in the phase I unit of a tertiary centre. Methods: Patients with MBC referred to a phase I unit underwent NGS via Ion AmpliSeq Cancer Hotspot v2 (ACH v2, 2014-2017) prior to institutional change to FoundationOne CDx (FM1; 2017-2022). Patients were counselled on findings and enrolled on matched therapeutic trials, where available. Outcomes for all subsequent treatment events were recorded to data cut-off on January 31, 2022. Results: A total of 215 patients were enrolled with successful NGS in 158 patients. The PI3K/AKT/PTEN pathway was the most altered with one or more of the pathway member genes PIK3/AKT/PTEN affected in 62% (98/158) patients and 43% of tumours harbouring a PIK3CA alteration. Tumour mutational burden (TMB) was reported in 96/109 FM1 sequenced patients, with a mean TMB of 5.04 mt/Mb and 13% (12/96) with TMB ≥ 10 mt/Mb. Treatment outcomes were evaluable in 105/158 patients, with a pooled total of 216 treatment events recorded. Matched treatment was administered in 47/216 (22%) events and associated with prolonged median progression-free survival (PFS) of 21.0 weeks [95% confidence interval (CI) 11.7, 26.0 weeks] versus 12.1 weeks (95% CI 10.0, 15.4 weeks) in unmatched, with hazard ratio (HR) for progression or death of 0.63 (95% CI 0.41, 0.97; p = 0.034). In the subgroup of PIK3/AKT/PTEN-altered MBC, the HR for progression or death was 0.57 (95% CI 0.35, 0.92; p = 0.02), favouring matched treatment. Per-patient overall survival (OS) analysis (n = 105) showed improved survival for patients receiving matched treatment versus unmatched, with median OS (mOS) of 30.1 versus 11.8 months, HR = 0.45 (95% CI 0.24, 0.84; p = 0.013). Objective response rate (ORR) in the overall population was similar in matched and unmatched treatment events (23.7% versus 17.2%, odds ratio of response 1.14 95% CI 0.50, 2.62; p = 0.75). Conclusions: Broad-panel NGS in MBC is feasible, allowing therapeutic matching, which was associated with improvements in PFS and OS.

Detection of Volatile Organic Compounds through Spectroscopic Signatures in Nanoporous Fabry-Pérot Optical Microcavities.

Increasingly complex modern gas-monitoring scenarios necessitate advanced sensing capabilities to detect and identify a diverse range of gases under varying conditions. There is a rising demand for individual sensors with multiple responses capable of recognizing gases, identifying components in mixtures, and providing stable responses. Inspired by gas sensors employing multivariable response principles, we develop a nanoporous anodic alumina high-order microcavity (NAA-HOµCV) gas sensor with multiple optical outputs for discriminative gas detection. The NAA-HOµCV architecture, formed by a Fabry-Pérot microcavity with distributed Bragg reflector (DBR) mirrors and an extended-length microcavity layer supporting multiple resonant modes, serves as an effective solid-state fingerprint platform for distinguishing volatile organic compound (VOC) gases. Our research reveals that the coupling strength of light into resonant modes and their evolution depend on the thickness of the DBR mirrors and the dimension of the microcavity layer, which allows us to optimize the discriminative sensing capability of the NAA-HOµCV sensor through structural engineering of the microcavity and photonic crystal mirrors. Gas-sensing experiments conducted on the NAA-HOµCV sensor demonstrate real-time discrimination between physiosorbed VOC gases (isopropanol, ethanol, or acetone) in reversible gas sensing. It also achieves superior ppb-level sensing in irreversible gas sensing of model silane molecules. Our study presents promising avenues for designing compact, cost-effective, and highly efficient gas sensors with tailored properties for discriminative gas detection.

Effective interventions in preventing gestational diabetes mellitus: A systematic review and meta-analysis.

BACKGROUND: Lifestyle choices, metformin, and dietary supplements may prevent GDM, but the effect of intervention characteristics has not been identified. This review evaluated intervention characteristics to inform the implementation of GDM prevention interventions. METHODS: Ovid, MEDLINE/PubMed, and EMBASE databases were searched. The Template for Intervention Description and Replication (TIDieR) framework was used to examine intervention characteristics (who, what, when, where, and how). Subgroup analysis was performed by intervention characteristics. RESULTS: 116 studies involving 40,940 participants are included. Group-based physical activity interventions (RR 0.66; 95% CI 0.46, 0.95) reduce the incidence of GDM compared with individual or mixed (individual and group) delivery format (subgroup p-value = 0.04). Physical activity interventions delivered at healthcare facilities reduce the risk of GDM (RR 0.59; 95% CI 0.49, 0.72) compared with home-based interventions (subgroup p-value = 0.03). No other intervention characteristics impact the effectiveness of all other interventions. CONCLUSIONS: Dietary, physical activity, diet plus physical activity, metformin, and myoinositol interventions reduce the incidence of GDM compared with control interventions. Group and healthcare facility-based physical activity interventions show better effectiveness in preventing GDM than individual and community-based interventions. Other intervention characteristics (e.g. utilization of e-health) don't impact the effectiveness of lifestyle interventions, and thus, interventions may require consideration of the local context.

The effect of any given intervention to prevent gestational diabetes (high blood sugar levels that arise during pregnancy) may depend on the way it is delivered (how, when, what, etc). This study reviewed published literature to investigate if the effects of interventions (diet, exercise, metformin, probiotics, myoinositol) to prevent gestational diabetes differ according to the way it is being delivered (e.g., online vs in-person, by health professionals or others, etc.). Exercise delivered to group settings, or those delivered at a healthcare facility worked better to prevent gestational diabetes. Although we did not observe any differences with other delivery characteristics (e.g., online vs in-person), it does not mean they are always equally effective, it is important to consider individual situations when prescribing or developing interventions.

Evaluation of nurse-reported missed care in a post-anesthesia care unit: A mixed-methods study.

BACKGROUND: Nurse-reported missed care (NRMC) is considered as any significant delay or omission in provision of nursing care. AIM: (i) Evaluate the frequency, types, and reasons for NRMC in the Post-anesthesia Care Unit (PACU). (ii) Evaluate associations between nurse demographic and workload factors with NRMC. (iii) Explore nurses' perception of NRMC in the PACU. METHODS: A cross-sectional study was conducted in the PACU in a tertiary acute care hospital over 3 months. Full-time PACU nurses were conveniently sampled to complete an anonymous survey after their daily shift over different shifts. It contained three sections: (i) nurse demographics; (ii) elements of NRMC; and (iii) reasons for NRMC. Qualitative interviews employed a semi-structured guide to explore perceptions and experiences of NRMC. Descriptive, inferential statistics, and thematic analyses were applied. RESULTS: Sixty-six survey responses were collected. 48.5% of respondents indicated at least one NRMC activity. Activities more clinically sensitive were less missed. Eight nurses were interviewed. Four main themes were identified: (i) communication with patients; (ii) communication and teamwork with colleagues; (iii) dual role of documentation; and (iv) staffing inadequacy. Language barriers made communication challenging. Staff shortage exacerbates workload but effective teamwork and documentation facilitates nursing care. CONCLUSION: Communication and staffing concerns aggravate NRMC. Teamwork and personal contentment were satisfactory. Nurses' turnover intention may worsen staffing. CLINICAL RELEVANCE: Timeliness and quality of nursing care is impacted by elements such as manpower, allocation of resources, work processes, and workplace environmental or interpersonal factors such as culture and language fit. Re-evaluation of nursing resources and work processes may assist post-anesthesia care unit nurses in fulfilling their role, decreasing the prevalence of nurse-reported missed care.

Comprehensive characterization of genomic features and clinical outcomes following targeted therapy and secondary cytoreductive surgery in OCCC: a single center experience.

OBJECTIVE: Ovarian clear cell carcinoma (OCCC) is associated with chemoresistance. Limited data exists regarding the efficacy of targeted therapies such as immune checkpoint inhibitors (ICI) and bevacizumab, and the role of secondary cytoreductive surgery (SCS). METHODS: We retrospectively analyzed genomic features and treatment outcomes of 172 OCCC patients treated at our institution from January 2000 to May 2022. Next-generation sequencing (NGS) was performed where sufficient archival tissue was available. RESULTS: 64.0% of patients were diagnosed at an early stage, and 36.0% at an advanced stage. Patients with advanced/relapsed OCCC who received platinum-based chemotherapy plus bevacizumab followed by maintenance bevacizumab had a median first-line progression-free survival (PFS) of 12.2 months, compared with 9.3 months for chemotherapy alone (hazard ratio=0.69; 95% confidence interval [CI]=0.33, 1.45). In 27 patients who received an ICI, the overall response rate was 18.5% and median duration of response was 7.4 months (95% CI=6.5, 8.3). In 17 carefully selected patients with fewer than 3 sites of relapse, median PFS was 35 months (95% CI=0, 73.5) and median overall survival was 96.8 months (95% CI=44.6, 149.0) after SCS. NGS on 58 tumors revealed common mutations in ARID1A (48.3%), PIK3CA (46.6%), and KRAS (20.7%). Pathogenic alterations in PIK3CA, FGFR2, and NBN were associated with worse survival outcomes. Median tumor mutational burden was 3.78 (range, 0-16). All 26 patients with available loss of heterozygosity (LOH) scores had LOH <16%. CONCLUSION: Our study demonstrates encouraging outcomes with bevacizumab and ICI, and SCS in select relapsed OCCC patients. Prospective trials are warranted.

Intervention Strategies to Address Barriers and Facilitators to a Healthy Lifestyle Using the Behaviour Change Wheel: A Qualitative Analysis of the Perspectives of Postpartum Women.

Postpartum women experience unique barriers to maintaining healthy lifestyles after birth. Theory-based behaviour change techniques and intervention strategies can be integrated into postpartum lifestyle interventions to enable women to overcome barriers to change. This study aims to explore barriers and facilitators to engaging in healthy postpartum lifestyle behaviours and develop intervention strategies for integration in a postpartum lifestyle intervention using the Behaviour Change Wheel (BCW). Semi-structured interviews were conducted with women up to two years postpartum (n = 21). Interviews were thematically analysed, themes were mapped to the Capability, Opportunity, and Motivation Model of Behaviour Change and intervention strategies were developed using the BCW. Findings suggest that women face barriers and facilitators within capability (sleep deprivation, mental exhaustion, ability to plan), opportunity (support of friends, partners and extended families) and motivation (challenges with prioritising self, exercise to cope with stress). Intervention strategies included supporting behaviour regulation and sleep to enhance capability, engaging partners, strengthening peer support to create opportunities and highlighting the mental health benefits of healthy lifestyles to inspire motivation. Integrating targeted evidence-based behaviour change strategies into postpartum lifestyle interventions may support women in overcoming commonly reported barriers to a healthy lifestyle.

Case report: Metastatic ovarian mucinous carcinoma to the breast: diagnostic challenges and pitfalls.

Metastases to the breast from extramammary sources are extremely rare, with the ovary, primarily high-grade serous carcinoma, being the most common origin. We report a case of breast metastases from advanced stage ovarian mucinous carcinoma in a 48-year-old female- a case hitherto unreported in the literature. The case is noteworthy for its atypical presentation marked by an areolar rash, clinically suggestive of Paget disease of the nipple. This unique clinical scenario, coupled with histopathological examination revealing in-situ-like carcinoma component, posed a diagnostic challenge in discerning the tumour origin. We emphasize the need for heightened awareness among pathologists to avoid misdiagnosing metastatic carcinomas as primary breast tumours, a potential pitfall with significant clinical implications.

Engineering of Solid-State Nanoporous Laser through Dendrimer-Encapsulated Fluorophores.

Dendrimers─nanosized macromolecules that can function as hosts for encapsulation of guest molecules─provide new avenues to engineer gain media for lasing systems. In this context, this study investigates the interplay between the geometric features of a model porous scattering medium, nanoporous anodic alumina (NAA), and the chemical features of a model fluorophore-dendrimer encapsulation system to maximize random lasing. The inner surface of the NAA platforms is functionalized with fluorophore molecules encapsulated within dendrimers via an electrostatic interaction. The resulting solid-state composite structures emit well-resolved, intense random lasing when subjected to optical pumping. By engineering fluorophore-dendrimer and geometric features of scattering medium, we can precisely tune the characteristics of random lasing emissions. It is found that lasing structures with low porosity and thickness functionalized with fluorophore molecules encapsulated in second-generation dendrimers provide the best platforms for lasing generation, resulting in a strongly polarized laser at ∼594 nm that has a high quality-gain product of ∼1588 au, a polarization quality of ∼0.86, and a lasing threshold of ∼0.05 mJ pulse-1. Comparative analysis indicates that dendrimers achieve 2.5 times better random lasing than conventional surfactants due to improved encapsulation and minimization of photobleaching. Our results reveal the importance of the fluorophore encapsulation method and design of scattering media in the engineering of random lasing platforms for applications in optical and optoelectrical systems.

Clinical Research into Central Nervous System Inflammatory Demyelinating Diseases Related to COVID-19 Vaccines.

Various vaccines have been developed in response to the SARS-CoV-2 pandemic, and the safety of vaccines has become an important issue. COVID-19 vaccine-related central nervous system inflammatory demyelinating diseases (CNS IDDs) have been reported recently. We present one case of AstraZeneca vaccine-related myelin oligodendrocyte glycoprotein (MOG) antibody-associated disease and a literature review of another 78 patients published from January 2020 to October 2022. Patients were divided into three vaccine types (viral vector, mRNA, and inactivated vaccines) for further analyses. Among 79 patients with COVID-19 vaccine-related CNS IDDs, 49 (62%) cases received viral vector vaccines, 20 (25.3%) received mRNA vaccines, and 10 (12.7%) received inactivated vaccines. Twenty-seven cases (34.2%) were confirmed with autoantibodies, including fifteen patients (19%) with anti-MOG, eleven (13.9%) with anti-aquaporin 4 (AQP4), and one (1.3%) with both antibodies. Significantly, more males developed CNS IDDs post viral vector vaccines compared to mRNA and inactivated vaccines. Patients receiving mRNA vaccines were older than those receiving other types. Furthermore, mRNA and inactivated vaccines correlated more with anti-AQP4 antibodies, while viral vector vaccines showed higher MOG positivity. This research suggests potential associations between COVID-19 vaccine-related CNS IDDs and gender, age, and autoantibodies, contingent on vaccine types. Protein sequence analysis implies similarities between the S protein and AQP4/MOG. Further studies may elucidate the mechanisms of CNS IDDs, aiding vaccine selection for specific types.

Translating evidence into practice in primary care management of adolescents and women with polycystic ovary syndrome: a mixed-methods study.

BACKGROUND: The international guideline on polycystic ovary syndrome (PCOS) provides evidence-based recommendations on the management of PCOS. Guideline implementation tools (GItools) were developed for general practitioner (GP) use to aid rapid translation of guidelines into practice. This mixed-methods study aimed to evaluate barriers and enablers of the uptake of PCOS GItools in general practice. DESIGN AND SETTING: A cross-sectional survey was distributed through professional networks and social media to GPs and GPs in training in Australia. Survey respondents were invited to contribute to semi-structured interviews. Interviews were audio-recorded and transcribed verbatim. Qualitative data were thematically analysed and mapped deductively to the Theoretical Domains Framework and Capability, Opportunity, Motivation and Behaviour model. RESULTS: The study engaged 146 GPs through surveys, supplemented by interviews with 14 participants. A key enabler to capability was reflective practice. Barriers relating to opportunity included limited awareness and difficulty locating and using GItools due to length and lack of integration into practice software, while enablers included ensuring recommendations were relevant to GP scope of practice. Enablers relevant to motivation included co-use with patients, and evidence of improved outcomes with the use of GItools. DISCUSSION: This study highlights inherent barriers within the Australian healthcare system that hinder GPs from integrating evidence for PCOS. Findings will underpin behaviour change interventions to assist GPs in effectively utilising guidelines in clinical practice, therefore minimising variations in care. While our findings will have a direct influence on guideline translation initiatives, changes at organisational and policy levels are also needed to address identified barriers.