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RNA interference (RNAi) has not been tested in the pandemic amphibian pathogen, Batrachochytrium dendrobatidis, but developing this technology could be useful to elucidate virulence mechanisms, identify therapeutic targets, and may present a novel antifungal treatment option for chytridiomycosis. To manipulate and decipher gene function, rationally designed small interfering RNA (siRNA) can initiate the destruction of homologous messenger RNA (mRNA), resulting in the "knockdown" of target gene expression. Here, we investigate whether siRNA can be used to manipulate gene expression in B. dendrobatidis via RNAi using differing siRNA strategies to target genes involved in glutathione and ornithine synthesis. To determine the extent and duration of mRNA knockdown, target mRNA levels were monitored for 24-48 h after delivery of siRNA targeting glutamate-cysteine ligase, with a maximum of ~56% reduction in target transcripts occurring at 36 h. A second siRNA design targeting glutamate-cysteine ligase also resulted in ~53% knockdown at this time point. siRNA directed toward a different gene target, ornithine decarboxylase, achieved 17% reduction in target transcripts. Although no phenotypic effects were observed, these results suggest that RNAi is possible in B. dendrobatidis, and that gene expression can be manipulated in this pathogen. We outline ideas for further optimization steps to increase knockdown efficiency to better harness RNAi techniques for control of B. dendrobatidis.
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Quitridiomicetos , Técnicas de Silenciamiento del Gen , Glutamato-Cisteína Ligasa , Interferencia de ARN , ARN Mensajero , ARN Interferente Pequeño , ARN Interferente Pequeño/genética , ARN Mensajero/genética , Animales , Quitridiomicetos/genética , Quitridiomicetos/patogenicidad , Glutamato-Cisteína Ligasa/genética , Ornitina Descarboxilasa/genética , Ornitina Descarboxilasa/metabolismo , Anfibios/microbiología , Glutatión/metabolismoRESUMEN
The spread of the amphibian chytrid fungus Batrachochytrium dendrobatidis, which causes the disease chytridiomycosis, has resulted in amphibian declines and extinctions worldwide. Some susceptible amphibian species can persist in contaminated habitats, prompting the hypothesis that B. dendrobatidis might be sensitive to heavy metals. We tested a panel of 12 metals to rank their toxicity to B. dendrobatidis zoospores and zoosporangia during a 6-h exposure. To better understand the mechanism for metal detoxification, we also evaluated whether glutathione is required for metal tolerance by depleting cellular glutathione before metal exposure. In addition, we investigated whether prior exposure to low metal concentrations impacted tolerance of subsequent exposure, as well as identifying metal combinations that may act synergistically. Silver (Ag), cadmium (Cd), and copper (Cu) were particularly toxic to B. dendrobatidis, with zoospore minimum lethal concentration values of 0.01 mM (Ag), 0.025 mM (Cd), and 0.5 mM (Cu). These three metals along with zinc (Zn) were also inhibitory to zoosporangia, with minimum inhibitory concentration values of 0.005 mM (Ag), 0.04 mM (Cd), 0.075 mM (Cu), and 0.04 mM (Zn). The fungicidal effects of several metals was reduced when assays were conducted in nutrient medium compared with synthetic pond water, highlighting the need for careful in vitro assay design and interpretation. Glutathione depletion strongly influenced tolerance of Cd and Ag (85% and 75% less growth, respectively) and moderately influenced tolerance of Cu, Zn, and lead (37%, 18%, and 14% less growth, respectively), indicating the importance of glutathione for metal detoxification. In general, the minimum metal concentrations that inhibited growth of B. dendrobatidis far exceeded values detected in contaminated amphibian habitats in Australia, suggesting that metal contamination alone may not have a strong protective effect against chytridiomycosis. We discuss future research directions to futher understand the potential for dissolved metals to create chytrid refuges. Environ Toxicol Chem 2024;43:1583-1591. © 2024 The Authors. Environmental Toxicology and Chemistry published by Wiley Periodicals LLC on behalf of SETAC.
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Batrachochytrium , Glutatión , Glutatión/metabolismo , Animales , Batrachochytrium/efectos de los fármacos , Metales Pesados/toxicidad , Anfibios/microbiología , Anfibios/metabolismo , Contaminantes Químicos del Agua/toxicidad , Quitridiomicetos/efectos de los fármacosRESUMEN
Extensive knowledge gains from research worldwide over the 25 years since the discovery of chytridiomycosis can be used for improved management. Strategies that have saved populations in the short term and/or enabled recovery include captive breeding, translocation into disease refugia, translocation from resistant populations, disease-free exclosures, and preservation of disease refuges with connectivity to previous habitat, while antifungal treatments have reduced mortality rates in the wild. Increasing host resistance is the goal of many strategies under development, including vaccination and targeted genetic interventions. Pathogen-directed strategies may be more challenging but would have broad applicability. While the search for the silver bullet solution continues, we should value targeted local interventions that stop extinction and buy time for evolution of resistance or development of novel solutions. As for most invasive species and infectious diseases, we need to accept that ongoing management is necessary. For species continuing to decline, proactive deployment and assessment of promising interventions are more valid than a hands-off, do-no-harm approach that will likely allow further extinctions.
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Quitridiomicetos , Micosis , Animales , Australia , Fitomejoramiento , Micosis/tratamiento farmacológico , Micosis/veterinaria , Micosis/microbiología , AnfibiosRESUMEN
Background: Perinatal mental health difficulties can occur during pregnancy or after birth and mental illness is a leading cause of maternal death. It is therefore important to identify the barriers and facilitators to implementing and accessing perinatal mental health care. Objectives: Our research objective was to develop a conceptual framework of barriers and facilitators to perinatal mental health care (defined as identification, assessment, care and treatment) to inform perinatal mental health services. Methods: Two systematic reviews were conducted to synthesise the evidence on: Review 1 barriers and facilitators to implementing perinatal mental health care; and Review 2 barriers to women accessing perinatal mental health care. Results were used to develop a conceptual framework which was then refined through consultations with stakeholders. Data sources: Pre-planned searches were conducted on MEDLINE, EMBASE, PsychInfo and CINAHL. Review 2 also included Scopus and the Cochrane Database of Systematic Reviews. Review methods: In Review 1, studies were included if they examined barriers or facilitators to implementing perinatal mental health care. In Review 2, systematic reviews were included if they examined barriers and facilitators to women seeking help, accessing help and engaging in perinatal mental health care; and they used systematic search strategies. Only qualitative papers were identified from the searches. Results were analysed using thematic synthesis and themes were mapped on to a theoretically informed multi-level model then grouped to reflect different stages of the care pathway. Results: Review 1 included 46 studies. Most were carried out in higher income countries and evaluated as good quality with low risk of bias. Review 2 included 32 systematic reviews. Most were carried out in higher income countries and evaluated as having low confidence in the results. Barriers and facilitators to perinatal mental health care were identified at seven levels: Individual (e.g. beliefs about mental illness); Health professional (e.g. confidence addressing perinatal mental illness); Interpersonal (e.g. relationship between women and health professionals); Organisational (e.g. continuity of carer); Commissioner (e.g. referral pathways); Political (e.g. women's economic status); and Societal (e.g. stigma). These factors impacted on perinatal mental health care at different stages of the care pathway. Results from reviews were synthesised to develop two MATRIx conceptual frameworks of the (1) barriers and (2) facilitators to perinatal mental health care. These provide pictorial representations of 66 barriers and 39 facilitators that intersect across the care pathway and at different levels. Limitations: In Review 1 only 10% of abstracts were double screened and 10% of included papers methodologically appraised by two reviewers. The majority of reviews included in Review 2 were evaluated as having low (n = 14) or critically low (n = 5) confidence in their results. Both reviews only included papers published in academic journals and written in English. Conclusions: The MATRIx frameworks highlight the complex interplay of individual and system level factors across different stages of the care pathway that influence women accessing perinatal mental health care and effective implementation of perinatal mental health services. Recommendations for health policy and practice: These include using the conceptual frameworks to inform comprehensive, strategic and evidence-based approaches to perinatal mental health care; ensuring care is easy to access and flexible; providing culturally sensitive care; adequate funding of services; and quality training for health professionals with protected time to do it. Future work: Further research is needed to examine access to perinatal mental health care for specific groups, such as fathers, immigrants or those in lower income countries. Trial registration: This trial is registered as PROSPERO: (R1) CRD42019142854; (R2) CRD42020193107. Funding: This award was funded by the National Institute for Health and Care Research (NIHR) Health and Social Care Delivery Research programme (NIHR award ref: NIHR 128068) and is published in full in Health and Social Care Delivery Research; Vol. 12, No. 2. See the NIHR Funding and Awards website for further award information.
Mental health problems affect one in five women during pregnancy and the first year after birth (the perinatal period). These include anxiety, depression and stress-related conditions. Mental health problems can have a negative effect on women, their partners and their children. They are also a leading cause of maternal death. It is therefore important that women who experience mental health problems get the care and treatment they need. However, only about half of women with perinatal mental health problems are identified by health services and even fewer receive treatment. This research aimed to understand what factors help or prevent women getting care or treatment for perinatal mental health problems. We did this by pulling together the findings from existing research in three phases. In phase 1 we reviewed the evidence from research studies to understand why it has been difficult for health services to assess, care for and treat women with perinatal mental health problems. In phase 2 we reviewed evidence from women's perspectives on all of the factors that prevent women from being able to get the care and treatment they need. In phase 3 we worked with a panel of women, health professionals (such as general practitioners and midwives) and health service managers to look at the findings from phases 1 and 2. We then developed frameworks that give a clear overview of factors that help or prevent women getting care and treatment. These frameworks show 39 factors that help women access services, and 66 factors that prevent access. Based on these results we have developed guidance for government, NHS service managers and health professionals, such as general practitioners, midwives, health visitors, nurses and wider teams such as receptionists. This will be shared widely with health services and professionals who support women during pregnancy and after birth to improve perinatal mental health services so that care meets women's needs.
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Accesibilidad a los Servicios de Salud , Trastornos Mentales , Servicios de Salud Mental , Atención Perinatal , Femenino , Humanos , Embarazo , Accesibilidad a los Servicios de Salud/organización & administración , Trastornos Mentales/terapia , Servicios de Salud Mental/organización & administración , Atención Perinatal/organización & administraciónRESUMEN
Increasing reports suggest the occurrence of co-infection between Ranaviruses such as Frog Virus 3 (FV3) and the chytrid fungus Batrachochytrium dendrobatidis (Bd) in various amphibian species. However, the potential direct interaction of these two pathogens has not been examined to date. In this study, we investigated whether FV3 can interact with Bd in vitro using qPCR, conventional microscopy, and immunofluorescent microscopy. Our results reveal the unexpected ability of FV3 to bind, promote aggregation, productively infect, and significantly increase Bd growth in vitro. To extend these results in vivo, we assessed the impact of FV3 on Xenopus tropicalis frogs previously infected with Bd. Consistent with in vitro results, FV3 exposure to previously Bd-infected X. tropicalis significantly increased Bd loads and decreased the host's survival.
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Coinfección , Infecciones por Virus ADN , Ranavirus , Animales , Batrachochytrium , AnurosRESUMEN
INTRODUCTION: Medical imaging in pregnancy (antenatal imaging) is routine. However, the effect of seeing fetal images on the parent-fetal relationship is not well understood, particularly for fathers or partners, or when using advanced imaging technologies. This review aimed to explore how parent experience and prenatal attachment is impacted by antenatal imaging. METHOD: Database searches were performed between September 2020 and April 2021 Inclusion criteria were English language primary research studies published since 2000, describing or reporting measures of attachment after antenatal imaging in expectant parents. The Pillar Integration Process was used for integrative synthesis. FINDINGS: Twenty-three studies were included. Six pillar themes were developed: 1) the scan experience begins before the scan appointment; 2) the scan as a pregnancy ritual; 3) feeling actively involved in the scan; 4) parents' priorities for knowledge and understanding of the scan change during pregnancy; 5) the importance of the parent-sonographer partnership during scanning; and 6) scans help to create a social identity for the unborn baby. CONCLUSION: Antenatal imaging can enhance prenatal attachment. Parents value working collaboratively with sonographers to be actively involved in the experience. Sonographers can help facilitate attachment by delivering parent-centred care tailored to parents' emotional and knowledge needs.
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Padres , Atención Prenatal , Lactante , Humanos , Femenino , Embarazo , Padres/psicología , Atención Prenatal/métodos , Feto , Emociones , Diagnóstico por ImagenRESUMEN
Batrachochytrium dendrobatidis (Bd) is a lethal amphibian pathogen, partly due to its ability to evade the immune system of susceptible frog species. In many pathogenic fungi, the antioxidant glutathione is a virulence factor that helps neutralise oxidative stressors generated from host immune cells, as well as other environmental stressors such as heavy metals. The role of glutathione in stress tolerance in Bd has not been investigated. Here, we examine the changes in the glutathione pool after stress exposure and quantify the effect of glutathione depletion on cell growth and stress tolerance. Depletion of glutathione repressed growth and release of zoospores, suggesting that glutathione is essential for life cycle completion in Bd. Supplementation with <2 mM exogenous glutathione accelerated zoospore development, but concentrations >2 mM were strongly inhibitory to Bd cells. While hydrogen peroxide exposure lowered the total cellular glutathione levels by 42 %, glutathione depletion did not increase the sensitivity to hydrogen peroxide. Exposure to cadmium increased total cellular glutathione levels by 93 %. Glutathione-depleted cells were more sensitive to cadmium, and this effect was attenuated by glutathione supplementation, suggesting that glutathione plays an important role in cadmium tolerance. The effects of heat and salt were exacerbated by the addition of exogenous glutathione. The impact of glutathione levels on Bd stress sensitivity may help explain differences in host susceptibility to chytridiomycosis and may provide opportunities for synergistic therapeutics.
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Batrachochytrium , Cadmio , Glutatión , Peróxido de Hidrógeno , Glutatión/metabolismo , Cadmio/toxicidad , Animales , Batrachochytrium/metabolismo , Peróxido de Hidrógeno/metabolismo , Estrés Oxidativo/efectos de los fármacos , Micosis/microbiología , Micosis/veterinaria , Micosis/metabolismo , Anfibios/microbiologíaRESUMEN
Perinatal mental health (PMH) problems are common and can have an adverse impact on women and their families. However, research suggests that a substantial proportion of women with PMH problems do not access care. OBJECTIVES: To synthesise the results from previous systematic reviews of barriers and facilitators to women to seeking help, accessing help, and engaging in PMH care, and to suggest recommendations for clinical practice and policy. DESIGN: A meta-review of systematic reviews. REVIEW METHODS: Seven databases were searched and reviewed using a Preferred Reporting Items for Systematic Reviews and Meta Analyses search strategy. Studies that focused on the views of women seeking help and accessing PMH care were included. Data were analysed using thematic synthesis. Assessing the Methodological Quality of Systematic Reviews-2 was used to assess review methodology. To improve validity of results, a qualitative sensitivity analysis was conducted to assess whether themes remained consistent across all reviews, regardless of their quality rating. RESULTS: A total of 32 reviews were included. A wide range of barriers and facilitators to women accessing PMH care were identified. These mapped across a multilevel model of influential factors (individual, healthcare professional, interpersonal, organisational, political and societal) and across the care pathway (from decision to consult to receiving care). Evidence-based recommendations to support the design and delivery of PMH care were produced based on identified barriers and facilitators. CONCLUSION: The identified barriers and facilitators point to a complex interplay of many factors, highlighting the need for an international effort to increase awareness of PMH problems, reduce mental health stigma, and provide woman-centred, flexible care, delivered by well trained and culturally sensitive primary care, maternity, and psychiatric health professionals. PROSPERO REGISTRATION NUMBER: CRD42019142854.
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Servicios de Salud Mental , Parto , Femenino , Humanos , Embarazo , Personal de Salud/psicología , Salud Mental , Revisiones Sistemáticas como AsuntoRESUMEN
BACKGROUND: Perinatal mental health (PMH) problems are a leading cause of maternal death and increase the risk of poor outcomes for women and their families. It is therefore important to identify the barriers and facilitators to implementing and accessing PMH care. AIMS: To develop a conceptual framework of barriers and facilitators to PMH care to inform PMH services. METHOD: Relevant literature was systematically identified, categorised and mapped onto the framework. The framework was then validated through evaluating confidence with the evidence base and feedback from stakeholders (women and families, health professionals, commissioners and policy makers). RESULTS: Barriers and facilitators to PMH care were identified at seven levels: individual (e.g. beliefs about mental illness), health professional (e.g. confidence addressing perinatal mental illness), interpersonal (e.g. relationship between women and health professionals), organisational (e.g. continuity of carer), commissioner (e.g. referral pathways), political (e.g. women's economic status) and societal (e.g. stigma). The MATRIx conceptual frameworks provide pictorial representations of 66 barriers and 39 facilitators to PMH care. CONCLUSIONS: The MATRIx frameworks highlight the complex interplay of individual and system-level factors across different stages of the care pathway that influence women accessing PMH care and effective implementation of PMH services. Recommendations are made for health policy and practice. These include using the conceptual frameworks to inform comprehensive, strategic and evidence-based approaches to PMH care; ensuring care is easy to access and flexible; providing culturally sensitive care; adequate funding of services and quality training for health professionals, with protected time to complete it.
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OBJECTIVE: To determine levels of postpartum depression symptoms and possible relevant predictors, such as death anxiety, health anxiety, and coronavirus-related anxiety. DESIGN: Cross-sectional web-based survey using quantitative methods. SETTING: Exclusively online recruiting via social media and unpaid cross-posting conducted during the third wave of the COVID-19 pandemic in Romania. PARTICIPANTS: Women were eligible to take part in the study if they were mothers over the age of 18 and had a baby aged between 4 weeks - 12 months of age; 1024 women were included in the final sample. MEASUREMENTS AND FINDINGS: Health anxiety, death anxiety, coronavirus-related anxiety, and postpartum depression symptoms were measured using validated instruments. Current depression symptomatology was 67.6%, 26.7% scored above the cut-off for high health anxiety, 1% for coronavirus-related anxiety, and 62.7% for death anxiety. Significant predictors for depressive symptomatology were breastfeeding, history of depression, family income, number of children, health anxiety, death anxiety, and coronavirus anxiety. Further, hierarchical multiple regression analysis indicated that death anxiety, health anxiety, and coronavirus anxiety predicted postpartum depression symptoms over and above socio-demographic factors. KEY CONCLUSIONS: Supported by previous studies, our results suggest that postpartum depression symptomatology levels during the COVID-19 pandemic are high and that they are predicted by health and death anxiety, which are also increased during the pandemic. IMPLICATION FOR PRACTICE: The findings provide information to identify the risk for depression symptoms in postpartum mothers during acute public health situations.
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COVID-19 , Depresión Posparto , Niño , Femenino , Humanos , Adulto , Persona de Mediana Edad , Recién Nacido , Depresión Posparto/epidemiología , Depresión Posparto/diagnóstico , COVID-19/epidemiología , Pandemias , Estudios Transversales , Ansiedad/epidemiología , Ansiedad/etiología , Ansiedad/diagnóstico , Periodo Posparto , Depresión/epidemiología , Depresión/etiología , Depresión/diagnósticoAsunto(s)
Servicios de Salud Materna , Trastornos Mentales , Embarazo , Femenino , Humanos , Salud Mental , Trastornos Mentales/terapiaRESUMEN
OBJECTIVES: Maternity health professionals (MHPs) caring for women may witness or be involved in traumatic births. This can be associated with MHPs experiencing secondary traumatic stress (STS) or probable post-traumatic stress disorder (PTSD), which may impact MHPs emotionally and physically. The aims of this review were therefore to determine: (i) the prevalence of STS and PTSD in maternity health professionals; and (ii) the impact of witnessing birth trauma on maternity health professionals. METHODS: A mixed-methods systematic review was carried out by conducting literature searches on CINAHL, MEDLINE, PsychARTICLES, PsychINFO and PsychTESTS databases. Searches were conducted from the inception of databases up to February 2022 using search terms on MHPs and birth trauma combined. Methodological quality and bias were assessed. Data were synthesised using thematic synthesis. RESULTS: A total of 18 studies were included in the review. Sample size ranged from 9 to 2,165 (total N = 8,630). Participants included midwives, nurses and obstetricians aged 18-77 years. Many MHPs had witnessed a traumatic birth event (45% - 96.9%) with the prevalence of STS ranging from 12.6%-38.7% and the proportion of participants meeting diagnostic criteria for PTSD ranging from 3.1%-46%. MHPs reported positive and negative effects associated with witnessing traumatic birth events. Synthesis of quantitative and qualitative papers identified five themes: Negative emotions and symptoms; Responsibility and regret; Impact on practice and care; Challenging professional identity; and Team support being essential. DISCUSSION: Witnessing traumatic birth events is associated with profound emotional and physical impacts on MHPs, signifying the importance of acknowledging and addressing this in the maternity workforce. It is important to raise awareness of the impact of birth trauma on MHPs. Effective education and training guidelines, a supervisory network, ways to change practice and policy, and support and treatment should be provided to assist and improve the outcomes and work-life of MHPs' who witness traumatic births.
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Traumatismos del Nacimiento , Partería , Enfermeras Obstetrices , Trastornos por Estrés Postraumático , Humanos , Femenino , Embarazo , Parto/psicología , Enfermeras Obstetrices/psicología , Trastornos por Estrés Postraumático/epidemiología , Trastornos por Estrés Postraumático/etiología , Trastornos por Estrés Postraumático/psicologíaRESUMEN
The Covid-19 pandemic provokes a pedagogic crisis: education is ill-adapted to accommodate multiple uncertainties in students' lives. We examine how pandemic uncertainty is registered in a global collection of writing and drawing from 4 to 17-years-old, during the 2020 lockdowns. The study engages with Biesta's (2021) philosophical work on 'world-centred education', offering empirical examples from the collection that goes beyond the immediacy of everyday lives. We identify educational implications: acknowledging students' present experiences of the world; a slowing of pedagogical tempo; supporting students to navigate desires and fears; a language for expressing uncertainty; and engaging students in ethical and existential difficulty.
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Mycoviruses may influence the pathogenicity of disease-causing fungi. Although mycoviruses have been found in some chytrid fungi, limited testing has not detected them in Batrachochytrium dendrobatidis (Bd), the cause of the devastating amphibian disease, chytridiomycosis. Here we conducted a survey for mycovirus presence in 38 Bd isolates from Australia (n = 31), Brazil (n = 5) and South Korea (n = 2) with a combination of modern high-throughput sequencing and conventional dsRNA cellulose chromatography. Mycoviruses were not detected in any isolates. This result was unexpected, given the long evolutionary history of Bd, as well as the high prevalence of mycoviruses in related fungal species. Given our widespread sampling in Australia and the limited number of Bd introductions, we suggest that mycoviruses are uncommon or absent from Australian Bd. Testing more isolates from regions where Bd originated, as well as regions with high diversity or low fungal virulence may identify mycoviruses that could aid in disease control.
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Quitridiomicetos , Virus Fúngicos , Anfibios , Animales , Australia , Batrachochytrium , Virus Fúngicos/genéticaRESUMEN
Statistics have shown that up to 30% of women experience birth as traumatising. However, most women do not go on to develop post-traumatic stress disorder (PTSD), and instead appear to be resilient. Research is still sparse in the field of traumatic birth and resilience, and it is not known how women develop resilience after a traumatic birth. OBJECTIVES: The aim of this study was to understand the process of fostering resilience after a traumatic birth. METHOD: Semi-structured interviews were conducted with eight female participants aged 30 to 50 years who experienced a traumatic birth. A constructivist grounded theory was used to analyse interviews. RESULTS: Two main themes were identified which were developed into an emergent model: 1) the feeling of powerlessness during a traumatic birth; and 2) the journey towards resilience. The powerlessness of a traumatic birth was related to a perceived lack of voice and abandonment by healthcare professionals. The model revealed that women's journey towards resilience was aided by both internal and external resources that included healing self-care and ownership of the role of mother; and drawing upon faith, spirituality and supportive relationships. DISCUSSION: The findings suggest resilience is a process whereby women draw upon internal and external resources or both at different points in their journey. The implications of the findings include training healthcare professionals in communication to avoid trauma during labour; and prompting women to identify and utilise both internal and external resources to help them to overcome any trauma.
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Traumatismos del Nacimiento , Trastornos por Estrés Postraumático , Femenino , Teoría Fundamentada , Humanos , Madres , Parto , Embarazo , Investigación Cualitativa , Trastornos por Estrés Postraumático/etiologíaRESUMEN
PURPOSE: To identify postpartum depression risk and describe experiences of women in the first 6 weeks after giving birth during the COVID-19 pandemic. STUDY DESIGN AND METHODS: Using a convergent mixed-methods approach, we recruited a convenience sample of women living in the United States who gave birth March 1, 2020 or later from social media Web sites. Participants completed the Postpartum Depression Screening Scale-Short Form and provided written answers to open-ended questions regarding their experiences at home with their new infant. RESULTS: Our 262 participants were on average 32.6 years of age, the majority were White (82%), married or partnered (91.9%), and college educated (87.4%). Mean postpartum depression score was 17.7 (SD = 5.9) with 75% scoring ≥14, indicating significant postpartum depressive symptoms. Qualitative content analysis revealed five themes: Isolation and seclusion continue; Fear, anxiety, and stress filled the days; Grieving the loss of normal: It's just so sad; Complicated by postpartum depression: A dark time; and There is a silver lining. Quantitative and qualitative findings provided a holistic view of women's depressive symptoms and experiences at home with their infants during the COVID-19 pandemic. CLINICAL IMPLICATIONS: Although policies that reduce risk of COVID-19 exposure and infection for patients and the health care team must continue to be implemented, the adverse effects of depressive symptoms on maternal-infant wellbeing within the context of increased isolation due to the pandemic need to be kept at the forefront. Nurses need to be aware of the consequences of women sheltering in place and social distancing on maternal-infant outcomes, particularly on depression and likelihood of breastfeeding.
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COVID-19 , Depresión Posparto , Depresión/epidemiología , Depresión Posparto/diagnóstico , Depresión Posparto/epidemiología , Depresión Posparto/prevención & control , Femenino , Humanos , Lactante , Pandemias , Periodo Posparto , Embarazo , SARS-CoV-2 , Estados Unidos/epidemiologíaRESUMEN
The devastating infectious disease chytridiomycosis has caused declines of amphibians across the globe, yet some populations are persisting and even recovering. One understudied effect of wildlife disease is changes in reproductive effort. Here, we aimed to understand if the disease has plastic effects on reproduction and if reproductive effort could evolve with disease endemism. We compared the effects of experimental pathogen exposure (trait plasticity) and population-level disease history (evolution in trait baseline) on reproductive effort using gametogenesis as a proxy in the declining and endangered frog Litoria verreauxii alpina. We found that unexposed males from disease-endemic populations had higher reproductive effort, which is consistent with an evolutionary response to chytridiomycosis. We also found evidence of trait plasticity, where males and females were affected differently by infection: pathogen exposed males had higher reproductive effort (larger testes), whereas females had reduced reproductive effort (smaller and fewer developed eggs) regardless of the population of origin. Infectious diseases can cause plastic changes in the reproductive effort at an individual level, and population-level disease exposure can result in changes to baseline reproductive effort; therefore, individual- and population-level effects of disease should be considered when designing management and conservation programs for threatened and declining species.
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Quitridiomicetos , Micosis , Animales , Anuros , Femenino , Masculino , ReproducciónRESUMEN
BACKGROUND: Pregnancy and childbirth are significant events in women's lives and most women have expectations or plans for how they hope their labour and birth will go. It is possible that strong expectations about labour and birth lead to dissatisfaction or other negative outcomes if these expectations are not met, but it is not clear if this is the case. The aim was therefore to synthesise prospective studies in order to understand whether unmet birth expectations are associated with adverse outcomes for women, their partners and their infants. METHOD: Searches were carried out in Academic Search Complete; CINAHL; Medline; PsycINFO, PsychArticles, PubMed, SCOPUS and Web of Science. Forward and backward searches were also completed. Studies were included if they reported prospective empirical research that examined the association between a mismatch in birth expectations/experience and postnatal outcomes in women, their children and/or their partners. Data were synthesised qualitatively using a narrative approach where study characteristics, context and methodological quality were extracted and summarised and then the differences and similarities among studies were used to draw conclusions. RESULTS: Eleven quantitative studies were identified for inclusion from nine countries. A mismatch between birth expectations and experiences was associated with reduced birth satisfaction. Three studies found a link between a mismatch and the development of postnatal post-traumatic stress disorder (PTSD). The evidence was inconsistent for postnatal depression, and fear of childbirth. Only one study looked at physical outcomes in the form of health-related quality of life. CONCLUSIONS: A mismatch between birth expectations and experiences is associated with birth satisfaction and it may increase the risk of developing postnatal PTSD. However, it is not clear whether a mismatch is associated with other postnatal mental health conditions. Further prospective research is needed to examine gaps in knowledge and provide standardised methods of measuring childbirth expectations-experiences mismatch. To ensure women's expectations are met, and therefore experience a satisfying birth experience, maternity providers should provide sensitive care, which acknowledges women's needs and preferences, is based on open and clear communication, is delivered as early in pregnancy as possible, and enables women to make their own decisions about care. TRIAL REGISTRATION: Protocol registration: PROSPERO CRD42020191081 .
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Actitud , Motivación , Parto/psicología , Embarazo/psicología , Investigación Empírica , Femenino , HumanosRESUMEN
BACKGROUND: Early Intervention in Psychosis (EIP) services improve health outcomes for young people with psychosis in the medium-long term, but 25% of young people disengage in the first 12 months with costs to their mental health, families, society and the NHS. This study will evaluate the effectiveness, cost-effectiveness and implementation of a team-based motivational Early Youth Engagement (EYE-2) intervention. METHOD: The study design is a cluster randomised controlled trial (RCT) with economic evaluation, comparing the EYE-2 intervention + standardised EIP service to standardised EIP service alone, with randomisation at the team level. A process evaluation will evaluate the delivery of the intervention qualitatively and quantitatively across contexts. The setting is 20 EIP teams in 5 sites: Manchester, South London, East Anglia, Thames Valley and Hampshire. Participants are young people (14-35 years) with first episode psychosis, and EIP staff. The intervention is the team-based motivational engagement (EYE-2) intervention, delivered alongside standardised EIP services, and supported by additional training, website, booklets and social groups. The comparator is the standardised EIP service. Both interventions are delivered by EIP clinicians. The primary outcome is time to disengagement (time in days from date of allocation to care coordinator to date of last contact following refusal to engage with EIP service, or lack of response to EIP contact for a consecutive 3-month period). Secondary outcomes include mental and physical health, deaths, social and occupational function, recovery, satisfaction and service use at 6, 12, 18 and 24 months. A 12-month within-trial economic evaluation will investigate cost-effectiveness from a societal perspective and from an NHS perspective. DISCUSSION: The trial will provide the first test of an engagement intervention in standardised care, with the potential for significant impact on the mental health and wellbeing of young people and their families, and economic benefits for services. The intervention will be highly scalable, supported by the toolkit including manuals, commissioning guide, training and resources, adapted to meet the needs of the diverse EIP population, and based on an in-depth process evaluation. TRIAL REGISTRATION: ISRCTN 51629746 prospectively registered 7th May 2019. Date assigned 10th May 2019.
Asunto(s)
Trastornos Psicóticos , Adolescente , Análisis Costo-Beneficio , Humanos , Londres , Salud Mental , Motivación , Trastornos Psicóticos/diagnóstico , Trastornos Psicóticos/terapiaRESUMEN
The improvement of perinatal mental health formed part of WHO's Millennium Development Goals. Research suggests that the implementation of perinatal mental health care is variable. To ensure successful implementation, barriers and facilitators to implementing perinatal mental health services need to be identified. Therefore, we aimed to identify the barriers and facilitators to implementing assessment, care, referral, and treatment for perinatal mental health into health and social care services. In this systematic review, we searched CINAHL, Embase, MEDLINE, and PsycINFO with no language restrictions for primary research articles published between database inception and Dec 11, 2019. Forward and backward searches of included studies were completed by March 31, 2020. Studies were eligible if they made statements about factors that either facilitated or impeded the implementation of perinatal mental health assessment, care, referral, or treatment. Partial (10%) dual screening was done. Data were extracted with EPPI-Reviewer 4 and analysed by use of a thematic synthesis. The protocol is registered on PROSPERO, CRD42019142854. Database searching identified 21 535 citations, of which 46 studies were included. Implementation occurred in a wide range of settings and was affected by individual (eg, an inability to attend treatment), health-care professional (eg, training), interpersonal (eg, trusting relationships), organisational (eg, clear referral pathways), political (eg, funding), and societal factors (eg, stigma and culture). A complex range of barriers and facilitators affect the implementation of perinatal mental health policy and practice. Perinatal mental health services should be flexible and women-centred, and delivered by well trained health-care professionals working within a structure that facilitates continuity of carer. Strategies that can be used to improve implementation include, but are not limited to, co-production of services, implementation team meetings, funding, and coalition building. Future research should focus on implementation barriers and facilitators dependent on illness severity, the health-care setting, and inpatient care.