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Autism-specific screening and developmental surveillance in primary care aid identification of autism. In this study, we assessed primary care clinicians’ (PCCs’) reported confidence in screening scores from the Modified Checklist for Autism in Toddlers, Revised (M-CHAT-R) and in their own diagnostic impressions. Four PCCs provided data for 50 children aged 16–36 months for whom they had any developmental concern. PCCs’ diagnostic impressions were “Definitely Autism” for 15 children (30%), “Unsure—Needs Further Evaluation” for 25 children (50%) and “Definitely Not Autism” for 10 children (20%). They reported High Confidence on the screener score in 33 cases (66%). Of the 17 cases for whom PCCs reported having Low Confidence on the M-CHAT-R, 14 children (82.3%) had a Low Likelihood score, with no significant association between M-CHAT-R likelihood and PCC’s confidence in the screening score. PCCs’ diagnostic impressions were concordant with the M-CHAT-R autism likelihood in 42% of cases, with a significantly higher mean in confidence rating when compared to the non-concordant cases. Language development and social engagement were the most frequently endorsed concerns by PCCs, with significant associations between these concerns and M-CHAT-R likelihood. Our results suggest that, when developmental concerns exist, PCCs may place greater confidence in the M-CHAT-R when scores indicate a higher likelihood of autism, and that confidence in their own diagnostic impressions may be associated with concordance with the screener score.

Although the American Academy of Pediatrics has long recommended universal autism-specific screening at well-child pediatric visits, implementation challenges in primary care settings interfere with high-fidelity universal autism screening. These challenges delay autism identification for some children, leading to delays in needed services and supports. Prior findings indicate that new solutions must be developed to bridge the gap in access to autism screening for families, particularly among those who are under-resourced. One approach is expanding screening to other community settings, such as childcare centers, but there are barriers to this approach, which this commentary aims to address. We discuss challenges and barriers in childcare screening identified through our recently completed pilot study screening for autism in childcare centers, with suggested strategies to address them. These challenges include hesitation among childcare staff to guide conversations or concerns about autism, and stigma around autism diagnosis and presentation. Other challenges relate to emerging concerns regarding legal, ethical, and professional roles and responsibilities surrounding informed consent and data privacy, as well as the identification of children without timely follow-up evaluation and services. There is a need for increasing public awareness as an essential component of autism screening across settings. Our commentary discusses different considerations and practice strategies to meet these needs.

The impact of COVID-19-related stress on perinatal women is of heightened public health concern given the established intergenerational impact of maternal stress-exposure on infants and fetuses. There is urgent need to characterize the coping styles associated with adverse psychosocial outcomes in perinatal women during the COVID-19 pandemic to help mitigate the potential for lasting sequelae on both mothers and infants. This study uses a data-driven approach to identify the patterns of behavioral coping strategies that associate with maternal psychosocial distress during the COVID-19 pandemic in a large multicenter sample of pregnant women ( N  = 2876) and postpartum women ( N  = 1536). Data was collected from 9 states across the United States from March to October 2020. Women reported behaviors they were engaging in to manage pandemic-related stress, symptoms of depression, anxiety and global psychological distress, as well as changes in energy levels, sleep quality and stress levels. Using latent profile analysis, we identified four behavioral phenotypes of coping strategies. Critically, phenotypes with high levels of passive coping strategies (increased screen time, social media, and intake of comfort foods) were associated with elevated symptoms of depression, anxiety, and global psychological distress, as well as worsening stress and energy levels, relative to other coping phenotypes. In contrast, phenotypes with high levels of active coping strategies (social support, and self-care) were associated with greater resiliency relative to other phenotypes. The identification of these widespread coping phenotypes reveals novel behavioral patterns associated with risk and resiliency to pandemic-related stress in perinatal women. These findings may contribute to early identification of women at risk for poor long-term outcomes and indicate malleable targets for interventions aimed at mitigating lasting sequelae on women and children during the COVID-19 pandemic.

Abstract Our primary objective was to document COVID-19 induced changes to perinatal care across the USA and examine the implication of these changes for maternal mental health. We performed an observational cross-sectional study with convenience sampling using direct patient reports from 1918 postpartum and 3868 pregnant individuals collected between April 2020 and December 2020 from 10 states across the USA. We leverage a subgroup of these participants who gave birth prior to March 2020 to estimate the pre-pandemic prevalence of specific birthing practices as a comparison. Our primary analyses describe the prevalence and timing of perinatal care changes, compare perinatal care changes depending on when and where individuals gave birth, and assess the linkage between perinatal care alterations and maternal anxiety and depressive symptoms. Seventy-eight percent of pregnant participants and 63% of postpartum participants reported at least one change to their perinatal care between March and August 2020. However, the prevalence and nature of specific perinatal care changes occurred unevenly over time and across geographic locations. The separation of infants and mothers immediately after birth and the cancelation of prenatal visits were associated with worsened depression and anxiety symptoms in mothers after controlling for sociodemographic factors, mental health history, number of pregnancy complications, and general stress about the COVID-19 pandemic. Our analyses reveal widespread changes to perinatal care across the US that fluctuated depending on where and when individuals gave birth. Disruptions to perinatal care may also exacerbate mental health concerns, so focused treatments that can mitigate the negative psychiatric sequelae of interrupted care are warranted.

Persisters are dormant phenotypic variants of bacterial cells that are tolerant to killing by antibiotics(1). Persisters are associated with chronic infections and antibiotic treatment failure(1-3). In Escherichia coli, toxin-antitoxin modules have been linked to persister formation(4-6). The mechanism of persister formation in Gram-positive bacteria is unknown. Staphylococcus aureus is a major human pathogen, responsible for a variety of chronic and relapsing infections such as osteomyelitis, endocarditis and infections of implanted devices. Deleting toxin-antitoxin modules in S. aureus did not affect the level of persisters. Here, we show that S. aureus persisters are produced due to a stochastic entrance into the stationary phase accompanied by a drop in intracellular adenosine triphosphate. Cells expressing stationary-state markers are present throughout the growth phase, and increase in frequency with cell density. Cell sorting revealed that the expression of stationary markers is associated with a 100-1,000-fold increase in the likelihood of survival to antibiotic challenge. The adenosine triphosphate level of the cell is predictive of bactericidal antibiotic efficacy and explains bacterial tolerance to antibiotics.

Persisters are dormant phenotypic variants of bacterial cells that are tolerant to killing by antibiotics 1 . Persisters are associated with chronic infections and antibiotic treatment failure 1 – 3 . In Escherichia coli , toxin–antitoxin modules have been linked to persister formation 4 – 6 . The mechanism of persister formation in Gram-positive bacteria is unknown. Staphylococcus aureus is a major human pathogen, responsible for a variety of chronic and relapsing infections such as osteomyelitis, endocarditis and infections of implanted devices. Deleting toxin–antitoxin modules in S. aureus did not affect the level of persisters. Here, we show that S. aureus persisters are produced due to a stochastic entrance into the stationary phase accompanied by a drop in intracellular adenosine triphosphate. Cells expressing stationary-state markers are present throughout the growth phase, and increase in frequency with cell density. Cell sorting revealed that the expression of stationary markers is associated with a 100–1,000-fold increase in the likelihood of survival to antibiotic challenge. The adenosine triphosphate level of the cell is predictive of bactericidal antibiotic efficacy and explains bacterial tolerance to antibiotics. ATP depletion is associated with induction of antibiotic tolerance in Staphylococcus aureus .

While a long history of experimental data shows that aerial thermal images can reveal a wide range of both surface and subsurface archaeological features, technological hurdles have largely prevented more widespread use of this promising prospecting method. However, recent advances in the sophistication of thermal cameras, the reliability of commercial drones, and the growing power of photogrammetric software packages are revolutionizing archaeologists' ability to collect, process, and analyze aerial thermal imagery. This paper provides an overview of the theory behind aerial thermography in archaeology, as well as a discussion of an emerging set of methods developed by the authors for undertaking successful surveys. Summarizing investigations at archaeological sites in North America, the Mediterranean, and the Near East, our results illustrate some contexts in which aerial thermography is very effective, as well as cases in which ground cover, soil composition, or the depth and character of archaeological features present challenges. In addition, we highlight novel approaches for filtering out noise caused by vegetation, as well as methods for improving feature visibility using radiometric thermal imagery. Si bien una larga historia de datos experimentales muestra que las imágenes térmicas aéreas pueden ser utilizadas para detectar una amplia gama de rasgos arqueológicos tanto superficiales como subsuperficiales, los obstáculos tecnológicos han en gran parte impedido la adopción generalizada de este prometedor método de prospección. Sin embargo, los recientes avances en la sofisticación de las cámaras térmicas, la fiabilidad de los drones comerciales y el creciente poder de los paquetes de software fotogramétricos han puesto al alcance de los arqueólogos la capacidad de recopilar, procesar y analizar imágenes térmicas aéreas. Este artículo ofrece una visión general de la teoría detrás de la aplicación de la termografía aérea en la arqueología, así como una discusión de un conjunto emergente de métodos desarrollados por los autores para llevar a cabo prospecciones remotas. Se resumen las investigaciones realizadas en sitios arqueológicos de Norteamérica, el Mediterráneo y el Cercano Oriente, cuyos resultados ilustran casos en los que la termografía aérea es muy eficaz, así como contextos en los que la cubierta vegetal, la composición del suelo o la profundidad y características específicas de los rasgos arqueológicos presentan desafíos. Destacamos nuevos avances para filtrar el “ruido” causado por la vegetación y métodos para mejorar la visibilidad de los rasgos arqueológicos utilizando imágenes térmicas radiométricas.

Purpose: The phenotypic manifestations of cerebral cavernous malformation disease caused by rare PDCD10 mutations have not been systematically examined, and a mechanistic link to Rho kinase–mediated hyperpermeability, a potential therapeutic target, has not been established. Methods: We analyzed PDCD10 small interfering RNA–treated endothelial cells for stress fibers, Rho kinase activity, and permeability. Rho kinase activity was assessed in cerebral cavernous malformation lesions. Brain permeability and cerebral cavernous malformation lesion burden were quantified, and clinical manifestations were assessed in prospectively enrolled subjects with PDCD10 mutations. Results: We determined that PDCD10 protein suppresses endothelial stress fibers, Rho kinase activity, and permeability in vitro. Pdcd10 heterozygous mice have greater lesion burden than other Ccm genotypes. We demonstrated robust Rho kinase activity in murine and human cerebral cavernous malformation vasculature and increased brain vascular permeability in humans with PDCD10 mutation. Clinical phenotype is exceptionally aggressive compared with the more common KRIT1 and CCM2 familial and sporadic cerebral cavernous malformation, with greater lesion burden and more frequent hemorrhages earlier in life. We first report other phenotypic features, including scoliosis, cognitive disability, and skin lesions, unrelated to lesion burden or bleeding. Conclusion: These findings define a unique cerebral cavernous malformation disease with exceptional aggressiveness, and they inform preclinical therapeutic testing, clinical counseling, and the design of trials. Genet Med 17 3, 188–196.