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Introduction: This case report presents the intentional periodontal maintenance of two periodontal hopeless lower central incisors with a multidisciplinary approach and 20-year follow-up. Case presentation: A 36-year-old male, in 2001, was diagnosed with aggressive periodontitis, gingival swelling, bleeding, and mandibular central incisors with mobility and poor prognosis. Following periodontal therapy (phase I), root canal treatment, and occlusal adjustment, #31 and #41 were gently extracted to remove the granulation tissues, calculus, and infected cementum from the root surface. Then, tetracycline-HCl was applied for 5 minutes on the root surfaces. The teeth were repositioned into the sockets and splinted with a lingual bar. At 3 months, the bar was removed, and a free gingival autogenous graft was done to improve the local keratinized tissue width. Mobility scores, pocket depths, and clinical attachment levels were recorded, and radiographs were taken at 1, 5, and 20 years. The 5-year follow-up showed that the teeth were clinically and radiographically in function. There was a reduction in probing depth and a gain in clinical attachment and radiographic alveolar bone levels. After 20 years, #41 was stable, but #31 had external root resorption, leading to a new treatment plan (dental implants) and extraction. Conclusion: The clinical result of this case was satisfactory for 20 years. Intentional periodontal maintenance of the teeth may be an alternative treatment, even considering the high level of complexity.

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Extensive spatiotemporal analyses of long-trend surface ozone in the Yangtze River Delta (YRD) region and its meteorology-related and emission-related have not been systematically analyzed. In this study, by using 8-year-long (2015-2022) surface ozone observation data, we attempted to reveal the variation of multiple timescale components using the Kolmogorov-Zurbenko filter, and the effects of meteorology and emissions were quantitatively isolated using multiple linear regression with meteorological variables. The results showed that the short-term, seasonal, and long-term components accounted for daily maximum 8-hr average O3 (O3-8 hr) concentration, 46.4%, 45.9%, and 1.0%, respectively. The meteorological impacts account for an average of 71.8% of O3-8 hr, and the YRD's eastern and northern sections are meteorology-sensitive areas. Based on statistical analysis technology with empirical orthogonal function, the contribution of meteorology, local emission, and transport in the long-term component of O3-8 hr were 0.21%, 0.12%, and 0.6%, respectively. The spatiotemporal analysis indicated that a distinct decreasing spatial pattern could be observed from coastal cities towards the northwest, influenced by the monsoon and synoptic conditions. The central urban agglomeration north and south of the YRD was particularly susceptible to local pollution. Among the cities studied, Shanghai, Anqing, and Xuancheng, located at similar latitudes, were significantly impacted by atmospheric transmission-the contribution of Shanghai, the maximum accounting for 3.6%.

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Introduction: Long-term imaging of live cells is commonly used for the study of dynamic cell behaviors. It is crucial to keep the cell viability during the investigation of physiological and biological processes by live cell imaging. Conventional incubators that providing stable temperature, carbon dioxide (CO2) concentration, and humidity are often incompatible with most imaging tools. Available commercial or custom-made stage-top incubators are bulky or unable to provide constant environmental conditions during long time culture. Methods: In this study, we reported the development of the microscope incubation system (MIS) that can be easily adapted to any inverted microscope stage. Incremental PID control algorithm was introduced to keep stable temperature and gas concentration of the system. Moreover, efficient translucent materials were applied for the top and bottom of the incubator which make it possible for images taken during culture. Results: The MIS could support cell viability comparable to standard incubators. When used in real time imaging, the MIS was able to trace single cell migration in scratch assay, T cell mediated tumor cells killing in co-culture assay, inflation-collapse and fusion of organoids in 3D culture. And the viability and drug responses of cells cultured in the MIS were able to be calculated by a label-free methods based on long term imaging. Discussion: We offer new insights into monitoring cell behaviors during long term culture by using the stage adapted MIS. This study illustrates that the newly developed MIS is a viable solution for long-term imaging during in vitro cell culture and demonstrates its potential in cell biology, cancer biology and drug discovery research where long-term real-time recording is required.

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Several predictive factors of immune checkpoint inhibitor response have been reported, but there has not been sufficient exploration of which patients benefit from immune checkpoint inhibitor rechallenge. We report the case of a patient with non-small cell lung cancer who had 6 years of complete response with initial nivolumab treatment. After relapse, however, rechallenge with nivolumab did not result in tumour shrinkage or long-term response. Even in patients who had an exceptional response to the initial immune checkpoint inhibitor, long-term efficacy may not be achieved by immune checkpoint inhibitor rechallenge. Thorough investigation of biomarkers that predict efficacy of immune checkpoint inhibitor rechallenge is warranted.

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In the past decade, China has motivated proactive emission control measures that have successfully reduced emissions of many air pollutants. For atmospheric mercury, which is a globally transported neurotoxin, much less is known about the long-term changes in its concentrations and anthropogenic emissions in China. In this study, over a decade of continuous observations at four Chinese sites show that gaseous elemental mercury (GEM) concentrations continuously increased until the early 2010s, followed by significant declines at rates of 1.8%-6.1% yr-1 until 2022. The GEM decline from 2013 to 2022 (by 38.6% ± 12.7%) coincided with the decreasing concentrations of criteria air pollutants in China and were larger than those observed elsewhere in the northern hemisphere (5.7%-14.2%). The co-benefits of emission control measures contributed to the reduced anthropogenic Hg emissions and led to the GEM decline in China. We estimated that anthropogenic GEM emissions in China were reduced by 38%-50% (116-151 tons) from 2013 to 2022 using the machine-learning and relationship models.

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A 41-year-old woman, never-smoker, accessed the emergency room for an episode of hemoptysis in September 2019. CT scan showed a defect of opacification in the left pulmonary artery and a solid mass of 12 cm in the left annex. PET confirmed high metabolic activity in the ovarian mass and, surprisingly, in the left hilar lung. The patient underwent a left annessiectomy and the histological examination showed a metastasis of small-cell lung cancer (SCLC) that mimicked a primary ovarian cancer. Fibrobronchoscopy and echo-guided biopsy confirmed the diagnosis of pulmonary SCLC. From January 2020, we started systemic therapy with carboplatin, etoposide, and atezolizumab. After six cycles of induction therapy with a complete response, thoracic and prophylactic cranial radiotherapy was done and maintenance therapy with atezolizumab was administered. After 53 months, the patient is still under treatment with a complete radiological response. This case report describes a rare instance of ovarian metastasis from SCLC that responded exceptionally well to immunotherapy. By reviewing literature from 1950 to the present, we identified other cases of ovarian metastases from SCLC, highlighting shared clinical and pathological traits and distinguishing them from primary ovarian tumors. We also examined the potential mechanisms behind the prolonged immunotherapy response observed in this case. As research on SCLC and immunotherapy evolves, this case may offer valuable insights into prognostic and predictive factors for this typically fatal cancer.

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OBJECTIVES: Long-term care (LTC) residents are susceptible to falling and the risk of subsequent morbidity and mortality may be compounded with concurrent anticoagulation use. Uncertainty exists around the benefit and harm of anticoagulation use for residents with a high risk for falls because of concerns of major bleeding complications. We aimed to examine if anticoagulant use increases mortality risk among LTC residents who fall. DESIGN: A retrospective cohort study. SETTING AND PARTICIPANTS: Older adults (≥65 years) admitted to a LTC facility in Ontario, Canada between January 1, 2010, and December 1, 2019, who were transferred to emergency departments for fall-related injuries. METHODS: The exposure was the use of an oral anticoagulant (OAC). The primary outcome was mortality within 30 days of transfer. Secondary outcomes were major hemorrhage and care utilization. We used hierarchical logistic regression models to examine the association between the use of OAC and 30-day mortality. RESULTS: There were 56,419 residents transferred to the hospital for a fall, of whom 9611 (17.0%) were on an OAC. At 30 days, 5794 (10.3%) of the cohort had died: 12.0% (1151) on an OAC and 9.90% (4643) not on an OAC (risk difference [RD], 2.1%; 95% CI, 1.40%-2.82%). There were 485 major hemorrhage cases: 1.3% (125) on an OAC and 0.8% (360) not on an OAC (RD, 0.5%; 95% CI, 0.26%-0.74%). Multivariable analysis found no significant association between OAC use and 30-day mortality (odds ratio [OR], 0.98; 95% CI, 0.90-1.06), but an increased risk of major hemorrhage (OR, 1.31; 95% CI, 1.04-1.66). Both groups had similar health system and neurosurgical care utilization. CONCLUSIONS AND IMPLICATIONS: Among LTC residents transferred to the emergency department for fall-related injuries, OACs did not increase the risk of post-fall mortality. OAC prescribing for frail older adults who experience falls should consider their individual risk profile.

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OBJECTIVE: To assess the cumulative rates of re-operations after hypospadias repair and evaluate long-term surgical outcomes at a tertiary paediatric urology centre. PATIENTS AND METHODS: Retrospective analysis of 293 boys born between 1991 and 2003 undergoing hypospadias surgery was conducted. The study included 274 patients: 165 with distal, 34 with midshaft, and 75 with proximal hypospadias. Kaplan-Meier methods were used to evaluate the re-operation data. RESULTS: The median age at primary surgery was 1.3 years, with a median follow-up of 14.4 years. The overall re-operation rate was 48.2%, with approximately half of the problems detected within the first 3 months after surgery. The risk of re-operation was correlated with hypospadias severity, with 5- and 15-year re-operation risks at 39.3% and 51.8%, respectively. Limitations of the study include its retrospective nature and variations in surgical techniques from current standards. CONCLUSION: There is a significant risk of unplanned re-operations following hypospadias repair, increasing with the severity of the original condition. This underscores the need for extended follow-up and effective communication with patients and their families about the likelihood of requiring multiple surgeries for optimal outcomes.

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BACKGROUND: Worldwide, three million deaths each year are reported due to the harmful use of alcohol. To date, only a few drugs have been approved for the treatment of Alcohol Use Disorder (AUD). This systematic review and meta-analysis aim to assess the long-term efficacy and safety of sodium oxybate (SMO) treatment in patients with AUD. METHODS: We followed the PRISMA statement guidelines and searched PubMed and ISI Web of Science to retrieve the studies of interest. In total, 13 studies on long-term (>12 weeks) SMO administra- tion in patients with AUD were included in this systematic review, and 7 were included in the meta- analysis. RESULTS: Overall, the abstinence rate after 12 weeks of treatment was similar in the SMO and placebo groups, while it was significantly in favour of SMO compared to Naltrexone (NTX). The completion rate was similar in all three conditions. Mean corpuscular volume (MCV) levels favoured SMO over NTX, while Alcohol Craving Scale (ACS) scores did not favour SMO. The incidence of adverse reactions varied widely between studies. CONCLUSION: SMO in the chronic treatment of patients with AUD showed no superiority to placebo in our analysis of published RCTs, although many observational studies reported its beneficial effect in the long term. On the contrary, SMO was superior to NTX treatment on abstinence. The rate of study completion was similar in the three groups. Safety was not an issue in any of the studies included. Further studies are needed to better assess SMO efficacy and safety in the long term.

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OBJECTIVE: Schizophrenia disorders severely impact social and occupational function and reduce quality of life, furthermore patients often suffer from social withdrawal and isolation. The aim of this study was to investigate long-term quality of life and social disconnection and determine 10-year changes in quality of life and social disconnection later in life in association with changes in symptom severity, cognition, and global function. METHODS: We used assessments of quality of life and assessor rated social disconnection from the 10- and 20-year follow-up of the OPUS trial to examined 10-year changes in self-rated quality of life and social disconnection in the later stage of illness following a first episode psychosis. Self-rated social disconnection was only assessed in the 174 participants of the 20-year follow-up. RESULTS: Twenty years after a first episode psychosis only half of the participants reported having face-to-face contact with someone in their network more than once a week, while 90 % reported often or always being able to get emotional support when needed. Quality of life ratings were lower in our study population compared to the general population. On average physical and environmental quality of life worsened from the 10- to the 20-year follow-up while psychological and social quality of life remained stable. All quality-of-life domains were associated with negative symptoms (physical QoL: b = -6.6, p < 0.001, psychological QoL: b = -8, p < 0.001, social QoL: b = -5.7, p < 0.001 and environmental QoL: b = -6.5, p < 0.001) and global function (physical QoL: b = -0. 47, p < 0.001, psychological QoL: b = 0.52, p < 0.001, social QoL: b = 0.31, p < 0.001 and environmental QoL: b = 0.49, p < 0.001). CONCLUSION: Social disconnection seems to persist over time. Social disconnection and quality of life were associated with negative symptoms and poor functioning, therefore interventions aimed at improving global and social function might likely also improve quality of life.

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BACKGROUND: In Germany, around 2.250 children and adolescents are diagnosed with cancer each year. Despite generally positive long-term survival rates, many patients must cope with late effects of the disease and its treatment. This highlights the need for a well-structured, long-term approach addressing both physical and mental health issues. Currently, the German healthcare system lacks such comprehensive structures. Our study aims to evaluate the effectiveness of a structured, multidisciplinary long-term approach compared to conventional "treatment as usual" (TAU). METHODS: A prospective, multicenter study with ten pediatric university clinics in Germany will be conducted. The cluster-randomization takes place at the clinic level. Children and adolescents who completed their cancer treatment at least five years ago and their parents will be eligible to participate. While the control group (CG) receives TAU, the intervention group (IG) participates in a structured program. This program includes risk-based medical treatment and psychosocial interventions tailored to each patient's individual needs within a two-month timeframe. The primary outcome is the improvement of self-efficacy. Secondary outcomes are satisfaction with health care, improvement of health-related quality of life (HRQoL), reduction of mental health problems, and improvement of transition readiness. DISCUSSION: This approach has the potential to optimize the health care for individuals who survived cancer during childhood or adolescence. It addresses the challenges of overuse, underuse, and misuse of health care resources. By considering both medical and psychosocial factors and promoting increased self-efficacy, independent from parental involvement, it may facilitate a smoother transition to adult medicine and enhance adherence to lifelong aftercare. If proven successful, this approach will contribute to the integration of multidisciplinary strategies into standard healthcare practice. TRIAL REGISTRATION: German Clinical Trials Register DRKS00029269. Registered on December 23, 2022.

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BACKGROUND: Nursing students' learning during clinical practice is largely influenced by the quality of the guidance they receive from their nurse preceptors. Students that have attended placement in nursing home settings have called for more time with nurse preceptors and an opportunity for more help from the nurses for reflection and developing critical thinking skills. To strengthen students' guidance and assessment and enhance students' learning in the practice setting, it has also been recommended to improve the collaboration between faculties and nurse preceptors. OBJECTIVE: This study explores first-year nursing students' experiences of using the Technology-Optimized Practice Process in Nursing (TOPP-N) application in 4 nursing homes in Norway. TOPP-N was developed to support guidance and assessment in clinical practice in nursing education. METHODS: Four focus groups were conducted with 19 nursing students from 2 university campuses in Norway. The data collection and directed content analysis were based on DeLone and McLean's information system success model. RESULTS: Some participants had difficulties learning to use the TOPP-N tool, particularly those who had not attended the 1-hour digital course. Furthermore, participants remarked that the content of the TOPP-N guidance module could be better adjusted to the current clinical placement, level of education, and individual achievements to be more usable. Despite this, most participants liked the TOPP-N application's concept. Using the TOPP-N mobile app for guidance and assessment was found to be very flexible. The frequency and ways of using the application varied among the participants. Most participants perceived that the use of TOPP-N facilitated awareness of learning objectives and enabled continuous reflection and feedback from nurse preceptors. However, the findings indicate that the TOPP-N application's perceived usefulness was highly dependent on the preparedness and use of the app among nurse preceptors (or absence thereof). CONCLUSIONS: This study offers information about critical success factors perceived by nursing students related to the use of the TOPP-N application. To develop similar learning management systems that are usable and efficient, developers should focus on personalizing the content, clarifying procedures for use, and enhancing the training and motivation of users, that is, students, nurse preceptors, and educators.

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This systematic review explored the instruments used to measure Shared Decision Making (SDM) within long-term care (LTC) settings. Relevant publications from the period between January 2000 and October 2022 were searched across five databases. Thirty-six SDM assessment instruments were identified, which encompassed those measuring SDM for LTC recipients/family caregivers and/or healthcare providers. These instruments were either specifically tailored for LTC settings or more broadly applicable across healthcare contexts, including LTC. In terms of psychometric properties of the instruments, internal consistency reliability, content validity, structural validity, and hypothesis testing were commonly tested. The findings of this research can aid health researchers, managers, and scholars in choosing suitable instruments for assessing SDM in specific LTC scenarios, considering factors such as measurement scope, assessment methods, and instrument reliability. Additionally, these findings offer valuable insights for the future development of high-quality SDM assessment instruments in LTC field.

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OBJECTIVES: To assess the staffing patterns of direct care nursing staff by shift in nursing homes (NHs), assisted living communities (ALCs), and their corresponding memory care units (MCUs). DESIGN: Observational study of the 2021 Ohio Biennial Survey of Long-Term Care Facilities and the Payroll-Based Journal data for December 2021. SETTING AND PARTICIPANTS: NHs (n = 678) and ALCs (n = 542) that reported staffing by shift in Ohio. METHODS: Resident-to-staff ratios in Ohio were calculated from staffing data. The proportion of daily nursing staff assigned to each shift was based on staffing data from the Biennial Survey for NHs and ALCs. Outcomes were calculated for aides and licensed nursing staff. RESULTS: Ohio's NHs and ALCs had lower resident-to-staff ratios on the day shift. Lower resident-to-staff ratios mean there were more staff per resident (ie, better staffed). For both types of staff and all shifts, overall resident-to-staff ratios were lower in NHs than ALCs. However, resident-to-staff ratios for ALC MCUs were on par with NH MCUs. This was consistent with ALC and NH MCUs staffing in a more similar manner. Across all settings, the day shift had the most staff members present, while a number of ALCs had no licensed nurses on duty during the overnight shift. CONCLUSIONS AND IMPLICATIONS: NHs and ALCs have different staffing patterns due to differences in resident needs. However, as ALCs provide for more residents that need NH level of care, ALCs may require additional staffing, especially on the overnight shift where some ALCs have no licensed nurses on duty. The evidence here can be used for decision making about future staffing policies, whether facility-wide policies that encompass MCUs or state-wide policies, so that care delivery aligns with care needs.

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Multisystem inflammatory syndrome is a severe complication of SARS-CoV-2 infection in children (MIS-C). To date, data on long-term sequelae mainly concern cardiac outcomes. All ≤ 18 year olds consecutively admitted to the Buzzi Children's Hospital with a diagnosis of MIS-C between October 1, 2020, and May 31, 2022, were followed up for up to 12 months by a dedicated multidisciplinary team. They underwent laboratory tests, multi-organ clinical and instrumental assessments, and psychosocial evaluation. 56/62 patients, 40 M, mean age 8.7 years (95% CI 7.7, 9.7), completed the follow-up. Cardiological, gastroenterological, pneumological, and neurological evaluations, including IQ and EEG, were normal. Alterations of HOMA-IR index and/or TyG index, observed in almost all patients during hospitalisation, persisted in about a third of the population at 12 months. At 6 and 12 months respectively, impairment of adaptive functions was observed in 38/56 patients (67.9%) and 25/56 (44.6%), emotional and behavioural problems in 10/56 (17.9%) and 9/56 (16.1%), and decline in QoL in 14/56 (25.0%) and 9/56 (16.1%). Psychosocial well-being impairment was significantly more frequent in the subgroup with persistent glycometabolic dysfunction at 12 months (75% vs. 40.9% p < 0.001). CONLUSION: The mechanisms that might explain the long-term persistence of both metabolic alterations and neuro-behavioural outcomes and their possible relationship are far from being clarified. Our study points out to the potential long-term effects of pandemics and to the importance of a multidisciplinary follow-up to detect potential negative sequelae in different areas of health, both physical and psychosocial. WHAT IS KNOWN: • Multisystem inflammatory syndrome in children (MIS-C) is a severe complication of SARS-CoV-2 infection. • Few data exist on the medium- and long-term outcomes of MIS-C, mostly focused on cardiac involvement. Emerging evidence shows neurological and psychological sequelae at mid- and long-term follow-up. WHAT IS NEW: • This study reveals that MIS-C may lead to long-term glycometabolic dysfunctions joined to impairment in the realm of general well-being and decline in quality of life, in a subgroup of children. • This study highlights the importance of a long-term multidisciplinary follow-up of children hospitalised with MIS-C, in order to detect the potential long-term sequelae in different areas of health, both physical and psychosocial well-being.

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PURPOSE: This study aimed to explore healthcare providers' perceptions of support provision for people who have experienced stroke. MATERIALS AND METHODS: A qualitative descriptive study was conducted. Snowball sampling was used to recruit Australian healthcare workers providing care to people with stroke. Semi-structured one-on-one interviews were audiotaped and transcribed. An inductive thematic analysis of all transcripts was undertaken by two authors. RESULTS: Fourteen participants who worked across the care continuum in three Australian states were interviewed. Responses fit into three overarching themes: (1) attitudes to supports; (2) availability and accessibility of supports; and (3) awareness of supports. These themes encompassed perceptions of the support options available for people with stroke and the factors affecting support provision decision making among healthcare providers. CONCLUSIONS: The healthcare providers in this study thought people with stroke would benefit from a greater range of available supports. Supports should take into account the diverse experiences and acute and long-term needs of people with stroke, as well as be accessible to people from all cultural, linguistic, and socioeconomic backgrounds. Healthcare providers and people who have experienced stroke may benefit from a roadmap for post-stroke support that clearly outlines where responsibility lies for support provision.

Healthcare providers across the care continuum feel that current post-stroke supports and services do not adequately serve the diversity of experiences and needs of stroke survivors.Stroke survivors who do not attend rehabilitation, including those with "mild" stroke or who do not fit within limb-focused rehabilitation services, may be missing out on key post-stroke information and support.The development of a roadmap for post stroke support that identifies minimum support provisions and where responsibility lies for provision could benefit healthcare providers, stroke survivors and their carers.

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Background: Brain arteriovenous malformations (AVMs) are challenging vascular lesions. Extensive follow-up studies are necessary to refine the therapeutic algorithm, and to improve long-term survival in these patients. The aim of the study was to assess surgical outcomes, and to evaluate overall long-term mortality in patients treated for brain AVMs. Methods: This retrospective single-center study included 191 patients with brain AVMs, admitted between 2012 and 2022. Clinical and angiographical particularities have been analyzed, to identify factors that might influence early outcome and overall long-term mortality. Results: Out of 79 patients undergoing surgery, 51 had ruptured AVMs with total resection achieved in 68 cases (86.1%). Deep venous drainage was associated with incomplete resection. Female sex, admission modified Rankin Scale (mRS) > 2, and eloquent location were independent predictors of poor outcomes. Multiple venous drainage was associated with a higher risk of worsened early outcome. Eloquent brain region involvement, conservative treatment, increasing age, admission mRS > 2, and comorbidities significantly decrease survival in brain AVM patients. Patients treated with interventional treatments had significantly better survival than the conservatively managed ones, when adjusting for age and admission mRS. Conclusion: The study identified female sex, poor neurologic status on admission and eloquence as independent prognostic factors for a negative outcome after surgery. Patients who received interventional treatment had significantly better survival than patients managed conservatively. We recommend employing tailored, proactive management strategies as they significantly enhance long-term survival in brain AVM patients.

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The preservation of microorganisms is pivotal in microbiological practice. Currently, cryopreservation is assumed to be an effective and inexpensive approach for the storage of microorganisms, including bacteria. The key point of cryopreservation is optimal cryoprotectant selection. In the present study, different cryoprotectant compositions were tested for long-term storage of 15 Enterobacterales bacterial strains at - 20 °C. The survival rates of the bacterial strains were evaluated in four different cryoprotectant solutions containing 70% glycerin only (cryoprotectants 1 and 4), 10% dimethyl sulfoxide (DMSO) with 70% glycerin (cryoprotectant 2), and 10% DMSO (cryoprotectant 3). In addition, cryoprotectants 1 and 2 contained peptone and yeast extract as nutritional supplements. The general survival rates of the bacterial strains were evaluated after 12 months of storage. After 12 months, the survival rates of the different cryoprotectants were as follows: cryoprotectant 1-88.87%; cryoprotectant 2-84.85%; cryoprotectant 3-83.50%; and cryoprotectant 4-44.81%. Thus, the composition of cryoprotectant 1 (70% glycerin with nutrient supplements) was optimal for preserving 15 tested strains of the order Enterobacterales. Despite these findings, the biochemical properties of the tested strains changed after cryopreservation for 12 months in the presence of 1 or 3 cryoprotectants. Alterations in the biochemical profile could be related to changes in environmental conditions and cold adaptation. We assume that the composition of cryoprotectant 1 can be optimal for storing the order Enterobacterales at - 20 °C. However, further investigations are needed to elucidate the problem of cryopreservation and to support our assumption.

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BACKGROUND: A Strategic Guiding Council (SGC) was created within a Family Carer Decisions Support study, to engage family carers of persons with advanced dementia as advisors to inform the design and implementation of the study. The SGC consists of an international group of family advisors from Canada, the Republic of Ireland, the United Kingdom, the Netherlands, and the Czech Republic. There are limited studies that have explored the integration of Patient and Public Involvement (PPI) in dementia research, end-of-life care and long-term care. Therefore, this study explores PPI engagement in health research with family carers to understand further their interest in being involved in the SCG within the FCDS intervention which is focused on supporting caregivers to make decisions about end-of-life care for residents with advanced dementia. METHODS: This study utilized an interpretive descriptive design and explored the motivations of ten family advisors from Canada, the Republic of Ireland, the United Kingdom, and the Netherlands in being part of the SGC. Semi-structured interviews were conducted by phone or videoconferencing and were recorded, transcribed, and analyzed using thematic analysis. RESULTS: Three themes generated from the findings of the study were (1) engaging in reciprocal learning; (2) using lived experience to support other family carers; and (3) creating a collective momentum for advocacy and change. CONCLUSIONS: Family carers motivations to being part of the SCG was driven by their intent to help carers navigate the health system and to create a psychosocial support system for other carers experiencing end-of-life with their loved ones. Being part of the SCG provided a benefit to family carers which provided a venue for them to contribute meaningful information from their experience, learn from other health professionals, research and other advisors and an avenue for advocacy work to improve access to end-of-life care supports through education. To our knowledge, this is the first study that explores the motivations of an international group of family advisors' engagement in health research to promote integration of a palliative approach to dementia care in long-term care homes. This study further contributes to the literature from an international perspective the importance of PPI in research. Further research is warranted that explores PPI in research to improve access to end-of-life supports.

Patient and public involvement (PPI) in research has been growing worldwide and ensures that research conducted is relevant to the needs of patients. Within the Family Carer Decisions Support study, we created a Strategic Guiding Council (SGC) to engage family carers of persons with advanced dementia as advisors to improve access to a palliative approach to care. The SGC includes family advisors from Canada, the Republic of Ireland, the United Kingdom, the Netherlands, Italy and the Czech Republic. The goal of the strategy was to engage with family advisors in research activities to improve access to a palliative approach and quality of care provided to people with dementia receiving end-of-life care. Including patients and family in research is extremely important, therefore our aim in this study was to explore family advisors' motivations to engaging in the SGC. Family advisors reported encountering challenges with navigating the health system with end-of-life care and they chose to participate in the SGC to support other carers who are experiencing a similar situation. Being part of the SGC also provided the family advisors with an avenue to advocate on the importance of improving access to end-of-lifesupports and the opportunity to learn from other advisors, health professionals and researchers.

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BACKGROUND: While genetic, hormonal, and lifestyle factors partially elucidate the incidence of breast cancer, emerging research has underscored the potential contribution of air pollution. Polychlorinated biphenyls (PCBs) and benzo[a]pyrene (BaP) are of particular concern due to endocrine-disrupting properties and their carcinogenetic effect. OBJECTIVE: To identify distinct long term trajectories of exposure to PCB153 and BaP, and estimate their associations with breast cancer risk. METHODS: We used data from the XENAIR case-control study, nested within the ongoing prospective French E3N cohort which enrolled 98,995 women aged 40-65 years in 1990-1991. Cases were incident cases of primary invasive breast cancer diagnosed from cohort entry to 2011. Controls were randomly selected by incidence density sampling, and individually matched to cases on delay since cohort entry, and date, age, department of residence, and menopausal status at cohort entry. Annual mean outdoor PCB153 and BaP concentrations at residential addresses from 1990 to 2011 were estimated using the CHIMERE chemistry-transport model. Latent class mixed models were used to identify profiles of exposure trajectories from cohort entry to the index date, and conditional logistic regression to estimate their association with the odds of breast cancer. RESULTS: 5058 cases and 5059 controls contributed to the analysis. Five profiles of trajectories of PCB153 exposure were identified. The class with the highest PCB153 concentrations had a 69% increased odds of breast cancer compared to the class with the lowest concentrations (95% CI 1.08, 2.64), after adjustment for education and matching factors. The association between identified BaP trajectories and breast cancer was weaker and suffered from large CI. CONCLUSIONS: Our results support an association between long term exposure to PCB153 and the risk of breast cancer, and encourage further studies to account for lifetime exposure to persistent organic pollutants.

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