The importance of integrating phycological research, teaching, outreach, and engagement in a changing world.

The ecological, evolutionary, economic, and cultural importance of algae necessitates a continued integration of phycological research, education, outreach, and engagement. Here, we comment on several topics discussed during a networking workshop-Algae and the Environment-that brought together phycological researchers from a variety of institutions and career stages. We share some of our perspectives on the state of phycology by examining gaps in teaching and research. We identify action areas where we urge the phycological community to prepare itself to embrace the rapidly changing world. We emphasize the need for more trained taxonomists as well as integration with molecular techniques, which may be expensive and complicated but are important. An essential benefit of these integrative studies is the creation of high-quality algal reference barcoding libraries augmented with morphological, physiological, and ecological data that are important for studies of systematics and crucial for the accuracy of the metabarcoding bioassessment. We highlight different teaching approaches for engaging undergraduate students in algal studies and the importance of algal field courses, forays, and professional phycological societies in supporting the algal training of students, professionals, and citizen scientists.

Physician-Led Synchronous Telemedicine Compared to Face-To-Face Care in Primary Care: A Systematic Review.

The COVID-19 crisis rapidly introduced telemedicine as the predominate modality to deliver healthcare however this change has not received attention in primary care settings and the health-related impacts are unknown. The study's objective was to explore the effects of physician-led synchronous telemedicine compared to face-to-face care delivered in the primary care setting on healthcare system use and attributes of primary care as reported in recent studies. We performed a comprehensive literature search in five databases (MEDLINE, Embase, Cochrane Database of Systematic Reviews, Cochrane Central Register of Controlled Trials, PsycInfo) and critical appraisal using the Joanna Briggs Institute tools. Of 6,247 studies identified, 157 studies underwent full text review, and 19 studies were included. Most studies were conducted in the U.S. (78.9%) and used video and telephone telemedicine (57.9%). An outcome-based qualitative description and narrative synthesis showed similar or fewer emergency department visits, hospital visits, and prescribing, and fewer diagnostic tests and imaging for telemedicine visits compared to face-to-face care. Our systematic review fills a gap in the literature on telemedicine in primary care settings however our results need to be interpreted cautiously given studies' susceptibility to selection bias, confounding, and limited applicability to other health systems and time periods.

Prevalence of multimorbidity and polypharmacy among adults and older adults: a systematic review.

Multimorbidity (multiple conditions) and polypharmacy (multiple medications) are increasingly common, yet there is a need to better understand the prevalence of co-occurrence. In this systematic review, we examined the prevalence of multimorbidity and polypharmacy among adults (≥18 years) and older adults (≥65 years) in clinical and community settings. Six electronic databases were searched, and 87 studies were retained after two levels of screening. Most studies focused on adults 65 years and older and were done in population-based community settings. Although the operational definitions of multimorbidity and polypharmacy varied across studies, consistent cut-points (two or more conditions and five or more medications) were used across most studies. In older adult samples, the prevalence of multimorbidity ranged from 4·8% to 93·1%, while the prevalence of polypharmacy ranged from 2·6% to 86·6%. High heterogeneity between studies indicates the need for more consistent reporting of specific lists of conditions and medications used in operational definitions.

Global matters of epidemiology and the ethical challenges of addressing the health of populations.

PURPOSE: The American College of Epidemiology (ACE) held its 2022 Annual Meeting, September 8-11, with a conference theme of 'Pandemic of Misinformation: Building Trust in Epidemiology'. The ACE Ethics Committee hosted a symposium session in recognition of the global spotlight placed on epidemiology and public health due to the COVID-19 crisis. The ACE Ethics Committee invited previous Chairs of the Ethics Committee and current President of the International Epidemiological Association to present at the symposium session. This paper aims to highlight the ethical challenges presented during the symposium session. METHODS: Three speakers with diverse backgrounds representing expertize from the fields of ethics, epidemiology, public health, clinical trials, pharmacoepidemiology, statistics, law, and public policy, covering perspectives from the U.S., Europe, and Southeast Asia were selected to present on the ethical challenges in epidemiology and public health applying a global theme. Dr. D. Weed presented on 'Causation, Epidemiology and Ethics'; Dr. C.M. Pandey presented on the 'Ethical Challenges in the Practice of Digital Epidemiology'; and Dr. J. Acquavella presented on 'Departures from Scientific Objectivity: A Cause of Eroding Trust in Epidemiology.' RESULTS: The collective goal to improve the public's health was a mutually shared theme across the three distinct areas. We highlight the common ethical guidance and principle-based approaches that have served epidemiology and public health in framing and critical analysis of novel challenges, including autonomy, beneficence, justice, scientific integrity, duties to the profession and community, and developing and maintaining public trust; however, gaps remain in how best to address health inequalities and the novel emergence and pervasiveness of misinformation and disinformation that have impacted the health of the global community. We introduce an ethical framework of translational bioethics that places considerations of the social determinants of health at the forefront. CONCLUSIONS: The COVID-19 pandemic required an expedited public health response and, at the same time, placed the profession of epidemiology and public health, its system, and structures, under the microscope like never before. This article illustrates that revisiting our foundations in research and practice and orienting contemporary challenges using an ethical lens can assist in identifying and furthering the health of populations globally.

Micro-CT and high-field MRI for studying very early post-mortem human fetal anatomy at 8 weeks of gestation.

OBJECTIVE: This study involved very early post-mortem (PM) examination of human fetal anatomy at 8 weeks of gestation (WG) using whole-body multimodal micro-imaging: micro-CT and high-field MRI (HF-MRI). We discuss the potential place of this imaging in early first-trimester virtual autopsy. METHODS: We performed micro-CT after different contrast-bath protocols including diffusible iodine-based contrast-enhanced (dice) and HF-MRI with a 9.4 T machine with qualitative and quantitative evaluation and obtained histological sections. RESULTS: Nine fetuses were included: the crown-rump length was 10-24 mm and corresponded to 7 and 9 WG according to the Robinson formula. The Carnegie stages were 17-21. Dice micro-CT and HF-MRI presented high signal to noise ratio, >5, according to the Rose criterion, and for allowed anatomical phenotyping in these specimens. Imaging did not alter the histology, allowing immunostaining and pathological examination. CONCLUSION: PM non-destructive whole-body multimodal micro-imaging: dice micro-CT and HF-MRI allows for PM human fetal anatomy study as early as 8 WG. It paves the way to virtual autopsy in the very early first trimester. Obtaining a precision phenotype, even regarding miscarriage products, allows a reverse phenotyping to select variants of interest in genome-wide analysis, offering potential genetic counseling for bereaved parents.

Detection of SARS-CoV-2 RNA in wastewater from dormitory buildings in a university campus: comparison with individual testing results.

Wastewater-based epidemiology (WBE) for monitoring COVID-19 has been largely used to detect the spread of the disease at the community level. From February to December 2022, we collected 24-h composite sewage samples from dormitory buildings in George Mason University (Fairfax, Virginia, USA) housing approximately 5,200 resident students. SARS-CoV-2 RNA extraction was achieved using an automated system based on magnetic nanoparticles. Analysis of SARS-CoV-2 RNA was performed using reverse transcription quantitative PCR based on the Centers for Disease Control and Prevention (CDC) N1 and N2 assays. From the 362 samples collected, 86% showed positive detection of SARS-CoV-2 RNA. Wastewater monitoring was able to detect SARS-CoV-2 RNA in 96% of the samples from buildings housing students with COVID-19. Over the period of study, we observed significant correlations between the SARS-CoV-2 concentration (copy number mL-1) in wastewater and the number of positive cases on campus based on individual saliva testing. Although several reports have been published on the wastewater monitoring of COVID-19 in university campuses, our study is one of the very few that provides results that were obtained during the last phase of the pandemic (roughly the year 2022), when the large majority of students were vaccinated and back on campus.

Theoretical Underpinnings of a Model to Reduce Polypharmacy and Its Negative Health Effects: Introducing the Team Approach to Polypharmacy Evaluation and Reduction (TAPER).

BACKGROUND: Polypharmacy, particularly among older adults, is gaining recognition as an important risk to health. The harmful effects on health arise from disease-drug and drug-drug interactions, the cumulative burden of side effects from multiple medications and the burden to the patient. Single-disease clinical guidelines fail to consider the complex reality of optimising treatments for patients with multiple morbidities and medications. Efforts have been made to develop and implement interventions to reduce the risk of harmful effects, with some promising results. However, the theoretical basis (or pre-clinical work) that informed the development of these efforts, although likely undertaken, is unclear, difficult to find or inadequately described in publications. It is critical in interpreting effects and achieving effectiveness to understand the theoretical basis for such interventions. OBJECTIVE: Our objective is to outline the theoretical underpinnings of the development of a new polypharmacy intervention: the Team Approach to Polypharmacy Evaluation and Reduction (TAPER). METHODS: We examined deprescribing barriers at patient, provider, and system levels and mapped them to the chronic care model to understand the behavioural change requirements for a model to address polypharmacy. RESULTS: Using the chronic care model framework for understanding the barriers, we developed a model for addressing polypharmacy. CONCLUSIONS: We discuss how TAPER maps to address the specific patient-level, provider-level, and system-level barriers to deprescribing and aligns with three commonly used models and frameworks in medicine (the chronic care model, minimally disruptive medicine, the cumulative complexity model). We also describe how TAPER maps onto primary care principles, ultimately providing a description of the development of TAPER and a conceptualisation of the potential mechanisms by which TAPER reduces polypharmacy and its associated harms.

[Photobiomodulation and vulvovaginal disorders after anticancer treatments]. / Photobiomodulation et troubles vulvovaginaux après traitements anticancéreux.

Anticancer treatments induce vulvovaginal complications that alter the quality of life and sexuality of patients. New technologies, such as photobiomodulation, could address this problem, for which few effective therapeutic solutions exist. The objective of this study was to describe the characteristics of patients seeking treatment and to observe the effects of photobiomodulation. This is a prospective cohort of patients treated for cancer, in failure of first-line medical treatment, managed at the University Hospital of Nîmes. The history, symptoms and impact of the disorders on their quality of life were collected. At follow-up, improvement was assessed using the PGI-I and FSFI questionnaires. Twenty-eight patients were treated. They were all menopausal, half of them after anticancer treatments [chemotherapy (78%), radiotherapy (36%), hormone therapy (36%)]. The main symptom reported was vaginal dryness (72%). Seventy-one percent of patients (n=20) felt that their daily life was affected≥8/10. All patients had sexual dysfunction. Twenty-two patients received at least 6 sessions of photobiomodulation. Seventy-two percent (n=18) of patients felt better or much better after treatment (PGI-I≤2). The median improvement estimated by the patients was 65% (Q1=50%; Q3=72.5%). There was also a significant clinical improvement. No serious adverse events were reported. Due to the small number of patients in a heterogeneous population with no control group, we cannot extrapolate our results. However, the objective was to assess the status of these pathologies and the contribution of photobiomodulation in patients who have failed first-line treatment; and these results are encouraging.

Anterior and Apical Prolapse: Comparison of Vaginal Mesh Surgery to Vaginal Surgery with No Mesh.

AIM OF THE STUDY: The aim of this study was to evaluate the anatomical results after an anterior sacrospinous ligament fixation (ASSLF) with native tissue repair (anterior colporraphy and apical suspension with prolene) compared to mesh repair for the correction of anterior prolapse at 12 months after surgery. MATERIALS AND METHODS: A monocentric prospective study comparing two similar cohorts who underwent ASSLF was conducted. The primary endpoint was the gain in the position of the Ba point relative to its position before surgery and twelve months after surgery. The secondary endpoints consisted of objective results, which were assessed using validated questionnaires. RESULTS: Fifty-three women were included in the native tissue repair group between June 2019 and March 2020. They were compared to 53 women operated on with anterior and apical mesh. There was no difference with respect to the Ba point after 1 year between the two groups (-2 [-3; 1.5]; -2 [-3; 1], p = 0.9789). The apex was significantly better corrected in the native tissue repair group (-7 vs. -6, p = 0.0007). There was also a better correction on the rectocele in the native tissue repair group (-3 vs. -2, p = 0.0178). The rate of Stage 2 anterior vaginal prolapse at one year was approximately 30% in both groups (no statistical difference). CONCLUSIONS: ASSFL without mesh does not increase the risk of cystocele recurrence at 1 year after surgery. A future prospective comparison of this native tissue repair technique with mesh suspension is necessary to explore these preliminary findings.

A meta-analysis of the stony coral tissue loss disease microbiome finds key bacteria in unaffected and lesion tissue in diseased colonies.

Stony coral tissue loss disease (SCTLD) has been causing significant whole colony mortality on reefs in Florida and the Caribbean. The cause of SCTLD remains unknown, with the limited concurrence of SCTLD-associated bacteria among studies. We conducted a meta-analysis of 16S ribosomal RNA gene datasets generated by 16 field and laboratory SCTLD studies to find consistent bacteria associated with SCTLD across disease zones (vulnerable, endemic, and epidemic), coral species, coral compartments (mucus, tissue, and skeleton), and colony health states (apparently healthy colony tissue (AH), and unaffected (DU) and lesion (DL) tissue from diseased colonies). We also evaluated bacteria in seawater and sediment, which may be sources of SCTLD transmission. Although AH colonies in endemic and epidemic zones harbor bacteria associated with SCTLD lesions, and aquaria and field samples had distinct microbial compositions, there were still clear differences in the microbial composition among AH, DU, and DL in the combined dataset. Alpha-diversity between AH and DL was not different; however, DU showed increased alpha-diversity compared to AH, indicating that, prior to lesion formation, corals may undergo a disturbance to the microbiome. This disturbance may be driven by Flavobacteriales, which were especially enriched in DU. In DL, Rhodobacterales and Peptostreptococcales-Tissierellales were prominent in structuring microbial interactions. We also predict an enrichment of an alpha-toxin in DL samples which is typically found in Clostridia. We provide a consensus of SCTLD-associated bacteria prior to and during lesion formation and identify how these taxa vary across studies, coral species, coral compartments, seawater, and sediment.

Current ethical and social issues in epidemiology.

PURPOSE: The American College of Epidemiology held its 2021 Annual Meeting virtually, September 8-10, with a conference theme of 'From Womb to Tomb: Insights from Health Emergencies'. The American College of Epidemiology Ethics Committee hosted a symposium session in recognition of the ethical and social challenges brought to light by the coronavirus disease 2019 pandemic and on the occasion of the publication of the third edition of the classic text, Ethics and Epidemiology. The American College of Epidemiology Ethics Committee invited the book editor and contributing authors to present at the symposium session titled 'Current Ethical and Social Issues in Epidemiology.' The purpose of this paper is to further highlight the ethical challenges and presentations. METHODS: Three speakers with expertise in ethics, health law, health policy, global health, health information technology, and translational research in epidemiology and public health were selected to present on the social and ethical issues in the current landscape. Dr. S Coughlin presented on the 'Ethical and Social Issues in Epidemiology', Dr. L Beskow presented on 'Ethical Challenges in Genetic Epidemiology', and Dr. K Goodman presented on the 'Ethics of Health Informatics'. RESULTS: New digital sources of data and technologies are driving the ethical challenges and opportunities in epidemiology and public health as it relates to the three emerging topic areas identified: (1) digital epidemiology, (2) genetic epidemiology, and (3) health informatics. New complexities such as the reliance on social media to control infectious disease outbreaks and the introduction of computing advancements are requiring re-evaluation of traditional bioethical frameworks for epidemiology research and public health practice. We identified several cross-cutting ethical and social issues related to informed consent, benefits, risks and harms, and privacy and confidentiality and summarized these alongside more nuanced ethical considerations such as algorithmic bias, group harms related to data (mis)representation, risks of misinformation, return of genomic research results, maintaining data security, and data sharing. We offered an integrated synthesis of the stages of epidemiology research planning and conduct with the ethical issues that are most relevant in these emerging topic areas. CONCLUSIONS: New realities exist for epidemiology and public health as professional groups who are faced with addressing population health, and especially given the recent pandemic and the widespread use of digital tools and technologies. Many ethical issues can be understood in the context of existing ethical frameworks; however, they have yet to be clearly identified or connected with the new technical and methodological applications of digital tools and technologies currently in use for epidemiology research and public health practice. To address current ethical challenges, we offered a synthesis of traditional ethical principles in public health science alongside more nuanced ethical considerations for emerging technologies and aligned these with lifecycle stages of epidemiology research. By critically reflecting on the impact of new digital sources of data and technologies on epidemiology research and public health practice, specifically in the control of infectious outbreaks, we offered insights on cultivating these new areas of professional growth while striving to improve population health.

Tools for assessing the scalability of innovations in health: a systematic review.

BACKGROUND: The last decade has seen growing interest in scaling up of innovations to strengthen healthcare systems. However, the lack of appropriate methods for determining their potential for scale-up is an unfortunate global handicap. Thus, we aimed to review tools proposed for assessing the scalability of innovations in health. METHODS: We conducted a systematic review following the COSMIN methodology. We included any empirical research which aimed to investigate the creation, validation or interpretability of a scalability assessment tool in health. We searched Embase, MEDLINE, CINAHL, Web of Science, PsycINFO, Cochrane Library and ERIC from their inception to 20 March 2019. We also searched relevant websites, screened the reference lists of relevant reports and consulted experts in the field. Two reviewers independently selected and extracted eligible reports and assessed the methodological quality of tools. We summarized data using a narrative approach involving thematic syntheses and descriptive statistics. RESULTS: We identified 31 reports describing 21 tools. Types of tools included criteria (47.6%), scales (33.3%) and checklists (19.0%). Most tools were published from 2010 onwards (90.5%), in open-access sources (85.7%) and funded by governmental or nongovernmental organizations (76.2%). All tools were in English; four were translated into French or Spanish (19.0%). Tool creation involved single (23.8%) or multiple (19.0%) types of stakeholders, or stakeholder involvement was not reported (57.1%). No studies reported involving patients or the public, or reported the sex of tool creators. Tools were created for use in high-income countries (28.6%), low- or middle-income countries (19.0%), or both (9.5%), or for transferring innovations from low- or middle-income countries to high-income countries (4.8%). Healthcare levels included public or population health (47.6%), primary healthcare (33.3%) and home care (4.8%). Most tools provided limited information on content validity (85.7%), and none reported on other measurement properties. The methodological quality of tools was deemed inadequate (61.9%) or doubtful (38.1%). CONCLUSIONS: We inventoried tools for assessing the scalability of innovations in health. Existing tools are as yet of limited utility for assessing scalability in health. More work needs to be done to establish key psychometric properties of these tools. Trial registration We registered this review with PROSPERO (identifier: CRD42019107095).

Evaluation of the effect of multipoint intra-mucosal vaginal injection of a specific cross-linked hyaluronic acid for vulvovaginal atrophy: a prospective bi-centric pilot study.

BACKGROUND: Vulvo-vaginal atrophy (VVA) is one of the common consequences of estrogen deficiency especially after the menopause. Several studies have assessed the effects of Hyaluronic acid (HA) on physical and sexual symptoms associated with VVA with promising results. However, most of these studies have focused on subjective assessment of symptom response to topically administered preparations. Nonetheless, HA is an endogenous molecule and it is logical that its effects are best realized if injected in the superficial epithelial layers. Desirial® is the first crosslinked HA that is administered by injection in the vaginal mucosa. The aim of this study was to explore the effect of multipoint vaginal intra-mucosal injections of specific cross-linked hyaluronic acid (DESIRIAL®, Laboratoires VIVACY) on several clinical and patient reported core outcomes. METHODS: A cohort bi-centric pilot study. The chosen outcomes included change in vaginal mucosa thickness, biological markers for collagen formation, vaginal flora, vaginal pH, vaginal health index, vulvo-vaginal atrophy symptoms and sexual function 8 weeks post Desirial® injection. Patients' satisfaction was also assessed using the patient global impression of improvement (PGI-I) scale. RESULTS: A total of 20 participants were recruited between 19/06/2017 and 05/07/2018. At the end of the study, there was no difference in the median total thickness of the vaginal mucosa or in procollagen I, III or Ki67 fluorescence. However, there was a statistically significant increase in COL1A1 and COL3A1 gene expression (p = 0.0002 and p = 0.0010 respectively). There was also a significant reduction in reported dyspareunia, vaginal dryness, vulvar pruritus, vaginal chafing and significant improvement in all female sexual function index dimensions. Based on PGI-I, 19 patients (95%) reported varying degrees of improvement where, 4 (20%) felt slightly better; 7 (35%) better and 8 (40%) much better. CONCLUSIONS: Multi-point vaginal intra-mucosal injections, of Desirial® (a crosslinked HA) was significantly associated with the expression of CoL1A1 and CoL3A1 suggesting stimulation of collagen formation. Furthermore, there was a significant reduction in VVA symptomatology and a significant improvement in patient satisfaction and sexual function scores. However, there was no demonstrable change in the total vaginal mucosal thickness. Study registration ID-RCB: 2016-A00124-47, Protocol code number: LOCAL/2016/PM-001.

The ethical challenges and opportunities of implementing engagement strategies in health research.

PURPOSE: The American College of Epidemiology (ACE) held its 2019 Annual Meeting in Pasadena, California, September 7-10 with a theme of "Real-World Epidemiologic Evidence in Policy and Practice". The ACE Ethics Committee hosted a symposium session at the annual meeting on the ethical challenges of stakeholder engagement in the health research setting. The purpose of this paper is to further examine the design and conduct of stakeholder engagement and reflect on the ethical challenges with the goal of offering best practices and identifying areas where future guidance, critical reflection and teaching may be needed. METHODS: Three speakers with diverse affiliations were selected to present on the opportunities and ethical challenges of stakeholder engagement in epidemiology and community health. Dr. K Coleman presented an "Overview of Stakeholder-Engaged Research Strategies" and "Engaging Stakeholders in Retrospective Observational Studies"; Dr. J Salerno presented on "An Ethical Perspective to Optimize Engagement Strategies"; and Ms. F Jones presented on the "Structure of Community-Partnered Participatory Research". RESULTS: Three main insights were identified: (1) the need for a unifying framework of ethical principles for the implementation of stakeholder engagement, (2) an expanded set of research activities for stakeholders aligned with their engagement in epidemiology studies, and (3) strengths of a community-based partnership model of stakeholder engagement in community health, known as community-partnered participatory research (CPPR). CONCLUSIONS: There is a need to broaden the dialogue and understanding of stakeholder engagement for researchers who are increasingly faced with the ethical challenges of implementing approaches and strategies to engage patients, communities, policy makers and the public as stakeholders. To address current challenges, we offered a unifying framework to guide best practices of stakeholder engagement by integrating the core ethical principles of research conduct involving human subjects with the guiding principles of patient engagement. We shared 2 model overviews of implementing stakeholder engagement: (1) a 4-staged model when implementing stakeholder engagement using an epidemiological study design, (2) a stakeholder engagement model rooted in authentic academic-community partnerships, known as community-partnered participatory research (CPPR) to address depression disparities. By critically reflecting on stakeholder engagement across disciplines and appraising the opportunities and ethical challenges of implementing stakeholder engagement in health research, we have provided insights on how to operationalize, conduct and implement stakeholder engagement and have contributed to moving this important field forward.

Deep-sea shipwrecks represent island-like ecosystems for marine microbiomes.

Biogeography of macro- and micro-organisms in the deep sea is, in part, shaped by naturally occurring heterogeneous habitat features of geological and biological origin such as seeps, vents, seamounts, whale and wood-falls. Artificial features including shipwrecks and energy infrastructure shape the biogeographic patterns of macro-organisms; how they influence microorganisms is unclear. Shipwrecks may function as islands of biodiversity for microbiomes, creating a patchwork of habitats with influence radiating out into the seabed. Here we show microbiome richness and diversity increase as a function of proximity to the historic deep-sea shipwreck Anona in the Gulf of Mexico. Diversity and richness extinction plots provide evidence of an island effect on microbiomes. A halo of core taxa on the seabed was observed up to 200 m away from the wreck indicative of the transition zone from shipwreck habitat to the surrounding environment. Transition zones around natural habitat features are often small in area compared to what was observed at Anona indicating shipwrecks may exert a large sphere of influence on seabed microbiomes. Historic shipwrecks are abundant, isolated habitats with global distribution, providing a means to explore contemporary processes shaping biogeography on the seafloor. This work is a case study for how built environments impact microbial biodiversity and provides new information on how arrival of material to the seafloor shapes benthic microbiomes.

Microbial Functional Responses in Marine Biofilms Exposed to Deepwater Horizon Spill Contaminants.

Marine biofilms are essential biological components that transform built structures into artificial reefs. Anthropogenic contaminants released into the marine environment, such as crude oil and chemical dispersant from an oil spill, may disrupt the diversity and function of these foundational biofilms. To investigate the response of marine biofilm microbiomes from distinct environments to contaminants and to address microbial functional response, biofilm metagenomes were analyzed from two short-term microcosms, one using surface seawater (SSW) and the other using deep seawater (DSW). Following exposure to crude oil, chemical dispersant, and dispersed oil, taxonomically distinct communities were observed between microcosms from different source water challenged with the same contaminants and higher Shannon diversity was observed in SSW metagenomes. Marinobacter, Colwellia, Marinomonas, and Pseudoalteromonas phylotypes contributed to driving community differences between SSW and DSW. SSW metagenomes were dominated by Rhodobacteraceae, known biofilm-formers, and DSW metagenomes had the highest abundance of Marinobacter, associated with hydrocarbon degradation and biofilm formation. Association of source water metadata with treatment groups revealed that control biofilms (no contaminant) harbor the highest percentage of significant KEGG orthologs (KOs). While 70% functional similarity was observed among all metagenomes from both experiments, functional differences between SSW and DSW metagenomes were driven primarily by membrane transport KOs, while functional similarities were attributed to translation and signaling and cellular process KOs. Oil and dispersant metagenomes were 90% similar to each other in their respective experiments, which provides evidence of functional redundancy in these microbiomes. When interrogating microbial functional redundancy, it is crucial to consider how composition and function evolve in tandem when assessing functional responses to changing environmental conditions within marine biofilms. This study may have implications for future oil spill mitigation strategies at the surface and at depth and also provides information about the microbiome functional responses of biofilms on steel structures in the marine built environment.

An integrated hospital-to-home transitional care intervention for older adults with stroke and multimorbidity: A feasibility study.

BACKGROUND: Stroke is the leading cause of death and adult disability in Canada. Eighty percent of older adults (≥65 years) who have suffered a stroke will return to their homes, and 60% will require ongoing rehabilitation. The transition between hospital and home is often fragmented, leading to adverse health outcomes, hospital readmissions, and increased health-care costs. This study examined the feasibility of a 6-month integrated transitional care stroke intervention (TCSI), and explored its effects on health outcomes, patient and provider experience, and cost in 30 community-living older adults (≥55 years) with stroke and multimorbidity (≥2 chronic conditions) using outpatient stroke rehabilitation services. METHODS: The TCSI is a 6-month intervention delivered by an interprofessional (IP) team (occupational therapist, physiotherapist, speech language pathologist, registered nurse, social worker). It involved care coordination, home visiting, and IP case conferences, supported by a web-based application. A qualitative descriptive approach was used to explore the feasibility of implementing the intervention. A prospective one-group pretest/posttest was used to evaluate the effects of the intervention on health outcomes and use and costs of health services, from baseline to 6 months. RESULTS: Participants had an average of eight comorbid conditions. The intervention was feasible and acceptable to both older adults and providers. From baseline to 6 months, there was no statistically significant difference in health outcomes. However, there was a significant reduction in the total per person use and costs of health services. CONCLUSIONS: This study established the feasibility of conducting a larger randomized controlled trial of this intervention.

Untangling the ethical intersection of epidemiology, human subjects research, and public health.

PURPOSE: Members of the American College of Epidemiology (ACE) Ethics Committee identified current ethics and epidemiology topic areas to consider for further discussion, consultation, teaching opportunities, and conference presentation. This article reflects on the activities of the Committee at the ACE Annual Meeting in New Orleans, Louisiana, September 24-26, 2017. METHODS: The overall aim for the Ethics Committee was to engage members of the College and other audiences and highlight the evolution of ethics and epidemiology since the inception of the original Ethics Guidelines published by the ACE Ethics and Standards of Practice Committee in 2000. The Ethics Committee organized a symposium session at the 2017 Annual Meeting of ACE on the ethics of human subjects research as it relates to specialized areas of epidemiology and the intersecting role of public health. This article presents a summary and further discussion of that symposium session. RESULTS: Three topic areas were presented: an overview of ethics and epidemiology (E.S.P.), very high biomarker levels in environmental epidemiology research (S.M.P.), and the interface of epidemiology, human subjects research, and public health interventions (S.M.). This article begins by reviewing the foundations of epidemiology and public health and the well-known ethical principles of human subjects research. Then, it considers the ethical considerations in the use of population registry data in epidemiological research, environmental epidemiology, and epidemic surveillance and response. This article may form the basis of teaching of ethics principles related to epidemiology and public health and may serve as a companion piece to the original ACE Ethics Guidelines. CONCLUSIONS: Researchers are increasingly faced with ethical considerations in diverse, nontraditional, and specialized areas of epidemiology and public health. This article illustrates these challenges with real-world examples of clinical and population registry data, the study of environmental biomarkers, and Zika virus epidemic; it also reviews relevant ethical principles underpinning these examples and identifies where gaps in knowledge may exist.

Feasibility and preliminary effects of an integrated hospital-to-home transitional care intervention for older adults with stroke and multimorbidity: A study protocol.

BACKGROUND: Stroke is a major life-altering event and the leading cause of death and disability in Canada. Most older adults who have suffered a stroke will return home and require ongoing rehabilitation in the community. Transitioning from hospital to home is reportedly very stressful and challenging, particularly if stroke survivors have multiple chronic conditions. New interventions are needed to improve the quality of transitions from hospital to home for this vulnerable population. OBJECTIVES: The primary objective of this study is to examine the feasibility of implementing a new 6-month transitional care intervention supported by a web-based app. The secondary objective is to explore its preliminary effects. DESIGN: A single arm, pre/post, pragmatic feasibility study of 20-40 participants in Ontario, Canada. Participants will be community-dwelling older adults (≥55 years) with a confirmed stroke diagnosis, ≥2 co-morbid conditions, and referred to a hospital-based outpatient stroke rehabilitation centre. The 6-month transitional care intervention will be delivered by an interprofessional (IP) team and involve care coordination/system navigation, self-management education and support, home visits, telephone contacts, IP team meetings and a web-based app. Primary evaluation of the intervention will be based on feasibility outcomes (e.g. acceptability, fidelity). Preliminary intervention effects will be based on 6-month changes in health outcomes, patient experience, provider experience and cost. CONCLUSIONS: Information on the feasibility and preliminary effects of this newly-developed intervention will be used to optimize the design and methods for a future pragmatic trial to test the effectiveness and implementation of the intervention in other contexts and settings.

The impact of the Deepwater Horizon blowout on historic shipwreck-associated sediment microbiomes in the northern Gulf of Mexico.

More than 2,000 historic shipwrecks spanning 500 years of history, rest on the Gulf of Mexico seafloor. Shipwrecks serve as artificial reefs and hotspots of biodiversity by providing hard substrate, something rare in deep ocean regions. The Deepwater Horizon (DWH) spill discharged crude oil into the deep Gulf. Because of physical, biological, and chemical interactions, DWH oil was deposited on the seafloor, where historic shipwrecks are present. This study examined sediment microbiomes at seven historic shipwrecks. Steel-hulled, World War II-era shipwrecks and wooden-hulled, 19th century shipwrecks within and outside of the surface oiled area and subsurface plume were examined. Analysis of 16S rRNA sequence libraries, sediment radiocarbon age data, sedimentation rates, and hydrocarbons revealed that the German U-boat U-166 and the wooden-hulled sailing vessel known as the Mardi Gras Wreck, both in the Mississippi Canyon leasing area, were exposed to deposited oil during a rapid sedimentation event. Impacts to shipwreck microbiomes included a significant increase in Piscirickettsiaceae-related sequences in surface sediments, and reduced biodiversity relative to unimpacted sites. This study is the first to address the impact of the spill on shipwreck-associated microbiomes, and to explore how shipwrecks themselves influence microbiome diversity in the deep sea.