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Patients with posttraumatic stress disorder (PTSD) exhibit smaller regional brain volumes in commonly reported regions including the amygdala and hippocampus, regions associated with fear and memory processing. In the current study, we have conducted a voxel-based morphometry (VBM) meta-analysis using whole-brain statistical maps with neuroimaging data from the ENIGMA-PGC PTSD working group.
Methods
T1-weighted structural neuroimaging scans from 36 cohorts (PTSD n = 1309; controls n = 2198) were processed using a standardized VBM pipeline (ENIGMA-VBM tool). We meta-analyzed the resulting statistical maps for voxel-wise differences in gray matter (GM) and white matter (WM) volumes between PTSD patients and controls, performed subgroup analyses considering the trauma exposure of the controls, and examined associations between regional brain volumes and clinical variables including PTSD (CAPS-4/5, PCL-5) and depression severity (BDI-II, PHQ-9).
Results
PTSD patients exhibited smaller GM volumes across the frontal and temporal lobes, and cerebellum, with the most significant effect in the left cerebellum (Hedges’ g = 0.22, pcorrected = .001), and smaller cerebellar WM volume (peak Hedges’ g = 0.14, pcorrected = .008). We observed similar regional differences when comparing patients to trauma-exposed controls, suggesting these structural abnormalities may be specific to PTSD. Regression analyses revealed PTSD severity was negatively associated with GM volumes within the cerebellum (pcorrected = .003), while depression severity was negatively associated with GM volumes within the cerebellum and superior frontal gyrus in patients (pcorrected = .001).
Conclusions
PTSD patients exhibited widespread, regional differences in brain volumes where greater regional deficits appeared to reflect more severe symptoms. Our findings add to the growing literature implicating the cerebellum in PTSD psychopathology.
Multicenter clinical trials are essential for evaluating interventions but often face significant challenges in study design, site coordination, participant recruitment, and regulatory compliance. To address these issues, the National Institutes of Health’s National Center for Advancing Translational Sciences established the Trial Innovation Network (TIN). The TIN offers a scientific consultation process, providing access to clinical trial and disease experts who provide input and recommendations throughout the trial’s duration, at no cost to investigators. This approach aims to improve trial design, accelerate implementation, foster interdisciplinary teamwork, and spur innovations that enhance multicenter trial quality and efficiency. The TIN leverages resources of the Clinical and Translational Science Awards (CTSA) program, complementing local capabilities at the investigator’s institution. The Initial Consultation process focuses on the study’s scientific premise, design, site development, recruitment and retention strategies, funding feasibility, and other support areas. As of 6/1/2024, the TIN has provided 431 Initial Consultations to increase efficiency and accelerate trial implementation by delivering customized support and tailored recommendations. Across a range of clinical trials, the TIN has developed standardized, streamlined, and adaptable processes. We describe these processes, provide operational metrics, and include a set of lessons learned for consideration by other trial support and innovation networks.
A new formulation of pyroxasulfone + encapsulated saflufenacil has been developed. Combining these two herbicides extends the application window to early postemergence. Pyroxasulfone, saflufenacil (suspension concentrate), and pyroxasulfone + encapsulated saflufenacil (microcapsule suspension) were applied to corn preemergence and evaluated for corn injury, corn yield, and visible weed control; in addition, the interaction (antagonistic, additive, or synergistic) was ascertained for each parameter. Six field trials were conducted at three locations in southwestern Ontario in 2022 and 2023. Pyroxasulfone was applied at 90, 120, and 150 g ai ha−1; saflufenacil was applied at 56, 75, and 95 g ai ha−1; and pyroxasulfone + encapsulated saflufenacil was applied at 146, 195, 245 g ai ha−1, equal to the combined rates of pyroxasulfone and saflufenacil. All pyroxasulfone, encapsulated saflufenacil, and pyroxasulfone + encapsulated saflufenacil treatments caused no corn injury. Weed control varied based on application rate and weed species. Reduced weed interference with pyroxasulfone + encapsulated saflufenacil at 195 and 245 g ai ha−1 resulted in corn yield that was similar to the weed-free control and the industry standard of S-metolachlor/atrazine/mesotrione/bicyclopyrone. The interaction between pyroxasulfone and encapsulated saflufenacil for weed control was additive.
This essay argues that what distinguishes a negatively valenced phenomenal experience from suffering is an ability to make meaning of the experience. In this sense, intellectual ability influences the extent and nature of suffering. But this connection is not a straightforward one, since intellectual ability cuts both ways. On the one hand, those with higher levels of intellectual functioning are better able to make meaning of negative experiences, thereby reducing their suffering. On the other, intellectual ability can influence the depth and breadth of one’s negative experiences, thereby increasing suffering. This means that we cannot make any assumptions about a person’s susceptibility to suffering based on their level of intellectual functioning alone.
The interstage period is a critical phase for single ventricle infants due to their fragile cardiovascular state. Infants often experience medical and feeding challenges during this period, resulting in caregiver stress. We completed a quality improvement project at Children’s Healthcare of Atlanta to understand these challenges to inform targeted interventions.
Methods:
This single-center project included a medical chart review and a cross-sectional caregiver survey. Data were collected on patient and caregiver demographics and clinical variables. Feeding outcomes were assessed using the Pediatric Functional Oral Intake Scale. Caregiver impact was measured using the Feeding/Swallowing Impact Survey.
Results:
The project included 15 single ventricle patients with a mean (standard deviation) age of 151.73(25.92) days at the time of the second-stage palliation. Forty percent of patients experienced at least one readmission, primarily due to feeding intolerance (20%) and desaturations (26.7%). Milk protein allergy (26.9%) was the most common medical complication, followed by interstage unplanned reinterventions. Pediatric Functional Oral Intake Scale scores demonstrated that 33% consumed minimal volumes or no oral intake at the time of the bidirectional Glenn, and 93.3% of patients did not receive outpatient feeding services during the interstage. Caregiver stress scores resulted in mean scores (standard deviation) of 2.23(1.54), with the highest impact on daily activities. All caregivers affirmed the need for a dedicated multidisciplinary clinic.
Conclusion:
The interstage period for single ventricle patients poses significant medical and feeding challenges, resulting in caregiver stress. Comprehensive, multidisciplinary feeding support during the interstage period may improve patient outcomes and alleviate caregiver burden.
To understand healthcare workers’ (HCWs) beliefs and practices toward blood culture (BCx) use.
Design:
Cross-sectional electronic survey and semi-structured interviews.
Setting:
Academic hospitals in the United States.
Participants:
HCWs involved in BCx ordering and collection in adult intensive care units (ICU) and wards.
Methods:
We administered an anonymous electronic survey to HCWs and conducted semi-structured interviews with unit staff and quality improvement (QI) leaders in these institutions to understand their perspectives regarding BCx stewardship between February and November 2023.
Results:
Of 314 HCWs who responded to the survey, most (67.4%) were physicians and were involved in BCx ordering (82.3%). Most survey respondents reported that clinicians had a low threshold to culture patients for fever (84.4%) and agreed they could safely reduce the number of BCx obtained in their units (65%). However, only half of them believed BCx was overused. Although most made BCx decisions as a team (74.1%), a minority reported these team discussions occurred daily (42.4%). A third of respondents reported not usually collecting the correct volume per BCx bottle, half were unaware of the improved sensitivity of 2 BCx sets, and most were unsure of the nationally recommended BCx contamination threshold (87.5%). Knowledge regarding the utility of BCx for common infections was limited.
Conclusions:
HCWs’ understanding of best collection practices and yield of BCx was limited.
To better understand how the public defines ‘healthy’ foods and to determine whether the public considers sustainability, implicitly and explicitly, in the context of healthy eating.
Design:
We conducted a content analysis of public comments submitted to the US FDA in 2016 and 2017 in response to an invitation for feedback on use of the term ‘healthy’ on food labels. The analysis explored the ways in which commenters’ definitions of ‘healthy’ aligned with the 2015–2020 Dietary Guidelines for Americans and whether their definitions considered sustainability.
Setting:
The US Government’s Regulations.gov website.
Participants:
All 1125 unique comments from individuals and organisations.
Results:
Commenters’ definitions of ‘healthy’ generally mirrored the recommendations that the Dietary Guidelines for Americans put forth to promote a ‘healthy eating pattern’. Commenters emphasised the healthfulness of fruit, vegetables, whole grains, fish and other minimally processed foods and the need to limit added sugars, sodium, saturated and trans fats and other ingredients sometimes added during processing. One-third of comments (n 374) incorporated at least one dimension of sustainability, mainly the environmental dimension. Commenters who mentioned environmental considerations primarily expressed concerns about synthetic chemicals and genetic modification. Less than 20 % of comments discussed social or economic dimensions of sustainability, and less than 3 % of comments (n 30) used the word ‘sustainability’ explicitly.
Conclusions:
This novel analysis provides new information about the public’s perceptions of ‘healthy’ foods relative to nutrition and sustainability considerations. The findings can be used to advance policy discussions regarding nutrition labelling and guidance.
Pediatric acquired demyelinating syndromes (PADS) include a heterogeneous group of diagnoses, including acute disseminated encephalomyelitis (ADEM), neuromyelitis optica spectrum disorders (NMOSD), optic neuritis (ON) and transverse myelitis (TM). Myelin oligodendrocyte glycoprotein antibody disease (MOGAD) is often associated with demyelinating conditions, but may also present with encephalopathy without demyelinating lesions. Approximately 30% of patients diagnosed with MOGAD experience a relapse. Neurocognitive outcomes in PADS have reduced performance on tasks related to attention, processing speed, visual motor, and fine motor functioning. Psychosocial problems include anxiety, depression, and fatigue. Neurocognitive and psychosocial impacts of MOGAD events for the pediatric population are sparse. The current study sought to characterize neurocognitive sequelae from MOGAD (MAGAD+) compared to patients diagnosed withPADS without MOGAD (MOGAD-).
Participants and Methods:
Twenty children and adolescents (6–18 years) diagnosed with PADS were recruited using a clinic convenience sample of patients. Study participants completed a neurocognitive battery and parents completed questionnaires of behavioral and emotional functioning. Demographic and medical variables were collected via retrospective chart review. Chi square and t-test analyses were used to compare MOGAD+ and MOGAD- groups. Performance on neuropsychological and behavioral questionnaires were compared to established sex and age norms to assess the degree to which group means deviate from normative expectations.
Results:
MOGAD+ and MOGAD- groups did not significantly differ based on demographic, neurocognitive, or parent reported social and behavioral functioning. Neurocognitive testing documented mean scores that were in the average range between groups. Notable variability in performance was observed within both MOGAD+ and MOGAD- groups. Bilateral fine motor deficits, visual motor, visual perception attention, and executive functioning deficits were notable for the combined PADS group, with 30-50% performing >1.5 SD below the mean. The number of white matter lesions or hospital duration were not significantly associated with performance on neurocognitive measures. However, older age of onset of PADS was significantly correlated with lower performance on visual motor integration and visual perception tasks (r(18) = -.50 p = .026; r(18) = -.53 p = .016). Findings also revealed associations of shorter hospitalization stays with higher behavioral symptoms on a parent measure of social/behavioral functioning (r(18) = -.47 p = .037).
Conclusions:
Consistent with the PADS literature, relative to control norms, lower performance on tasks related to attention, executive functioning, visual motor, and fine motor skills, irrespective of MOGAD status, are observed in the current study. The variability of functioning and heterogeneity observed across PADS diagnoses warrants further study to better understand the impact of clinical course, treatment outcomes, and neuropsychological sequelae over time in this population. Higher behavioral distress with shorter hospital stays may indicate a potential opportunity for patient and family education preparing for return to home/community. The current study was limited by small sample size, variable time since hospitalization, and heterogeneous diagnoses within PADS that make it difficult to generalize findings. Future studies could prospectively follow patients over time to better understand the trajectory of recovery, identify predictors for relapse, and those at greatest risk of neurocognitive and behavioral deficits.
The regulation of theology in the Reformation era took many forms. Among the factors that shaped the procedures were the practices of the ancient and medieval church, the particular ecclesiology and polity adopted by various denominations and the authority they gave to their church officials and to new institutions, their credal statements, and the wishes of the Christian rulers in whose territories they functioned.
Most histories of Reformation-era theology have been organized either by theologian or by subject. Both approaches follow a straightforward logic, but they also have limitations, and these have become more evident as the field has expanded and become more complex. Works that treat theology as products of individual minds tend to overlook the role of dialogue and collaboration, mutual influences, and academic exchange in the generation of ideas. That is especially problematic for an era that was shaped by the emergence of new religious communities and confessional identities, powerful currents of polemic and controversy, and strategies for conflict resolution – none of which are given adequate account by viewing individual theologians in isolation. Organizing a history of theology by subject, that is, according to a list of prominent theological topics, solves some of the problems of the first approach but introduces a different set of deficits.
The Council of Trent was a major event in the history of Christianity. It shaped Roman Catholicism's doctrine and practice for the next four hundred years and continues to do so today. The literature on the Council is vast and in numerous languages. This Companion, written by an international group of leading researchers, brings together the latest scholarship on the principal issues treated at the Council: the relationship between Scripture and Tradition, original sin, justification, the sacraments (Baptism, Penance, Confirmation, Eucharist, Holy Orders, Marriage, and the Annointing of the Sick), sacred images, sacred music, and its reform of religious orders, the training of the clergy, the provision of pastoral care in the parish setting, and the implementation of its decrees. The volume demonstrates that the Council unwittingly furthered the papal centralization of authority by allowing the interpretation of its decrees to be the exclusive prerogative of the Holy See, and entrusting it with their implementation.
The introductory chapter surveys the events that led to the convocation of the Council of Trent and summarizes what was accomplished at each of its twenty-five sessions. It also recounts how its was formally approved, its decrees published, their interpretation and implementation entrusted to the Congregation of the Council, and its legislation promulgated by provincial councils. How the council has been remembered by historians and its records made available is also traced.
The council both followed precedents and created new ways of managing its affairs. It abandoned the “nations” and deputation structures of Konstanz and Basel in favor of classes, particular congregations of “minor theologians,” and congregations of prelate-theologians and of prelate-canonists, while retaining the general congregatons andformal sessions. Papal legates, whose powers increased with time, determined the agenda and presided over the proceedings. An effort is made to determine the numbers and nationalities of the participants for each of the three periods. The reasons for the failed participation of Protestants and Eastern Christians are explored.