97 research outputs found

    A history of violence in the Mesolithic female skeleton from Mezzocorona-Borgonuovo (Trento, northeastern Italy)

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    Scholars have long been interested in understanding conflict in prehistoric times. Skeletal lesions attributable to interpersonal violence constitute the most direct evidence available to make inferences on the diachronic changes in the frequency, scale, and motivation for conflict among human communities. It has been proposed that evidence of violence becomes more common among Early Holocene Mesolithic hunter-gatherers; however, the skeletal record becomes increasingly fragmentary in more ancient periods, making the finding of new evidence of great importance. We present here a case of traumatic recidivism in a Mesolithic female from the site of Mezzocorona-Borgonuovo (MBN-1) in the northeastern Italian Alps (Trento). This female displays a perimortem perforating defect in the frontal bone, as well as healed cranial and forearm fractures. Although it is possible to interpret these injuries as resulting from falls from height, we propose that they are most compatible with MBN-1 being victim over time of multiple episodes of interpersonal violence. In addition, probably a few months before death, MBN-1 suffered another traumatic injury of the ankle, and in this case the fall from height appears the most likely scenario. We further propose that the attacks leading to the cranial and forearm fractures were presumably perpetrated by individuals coming from outside MBN-1's group. Conversely, her group most likely cared for her through medical treatment – as suggested by the successful healing of forearm and ankle fractures – and by according her a formal burial. The traumatic history of MBN-1 provides rare glimpses into the life experience of a Mesolithic female from northeastern Italy, a context where human remains are extremely rare. However, being a single case, more findings are needed to understand whether or not MBN-1 can be viewed as emblematic of the overall exposure to interpersonal or accidental trauma for Mesolithic groups in the area, and to explore issues of frequency, origin, and motivation for ancient conflict

    Inter-hemispherical asymmetry in default-mode functional connectivity and BAIAP2 gene are associated with anger expression in ADHD adults

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    Attention deficit hyperactivity disorder (ADHD) is accompanied by resting-state alterations, including abnormal activity, connectivity and asymmetry of the default-mode network (DMN). Concurrently, recent studies suggested a link between ADHD and the presence of polymorphisms within the gene BAIAP2 (i.e., brain-specific angiogenesis inhibitor 1-associated protein 2), known to be differentially expressed in brain hemispheres. The clinical and neuroimaging correlates of this polymorphism are still unknown. We investigated the association between BAIAP2 polymorphisms and DMN functional connectivity (FC) asymmetry as well as behavioral measures in ADHD adults. Resting-state fMRI was acquired from 30 ADHD and 15 healthy adults. For each subject, rs7210438 and rs8079626 within the gene BAIAP2 were genotyped. ADHD severity, impulsiveness and anger were assessed for the ADHD group. Using multivariate analysis of variance, we found that genetic features do have an impact on DMN FC asymmetry. In particular, polymorphism rs8079626 affects medial frontal gyrus and inferior parietal lobule connectivity asymmetry, lower for AA than AG/GG carriers. Further, when combining FC asymmetry and the presence of the rs8079626 variant, we successfully predicted increased externalization of anger in ADHD. In conclusion, a complex interplay between genetic vulnerability and inter-hemispherical DMN FC asymmetry plays a role in emotion regulation in adult ADHD

    Mobilise-D insights to estimate real-world walking speed in multiple conditions with a wearable device

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    This study aimed to validate a wearable device’s walking speed estimation pipeline, considering complexity, speed, and walking bout duration. The goal was to provide recommendations on the use of wearable devices for real-world mobility analysis. Participants with Parkinson’s Disease, Multiple Sclerosis, Proximal Femoral Fracture, Chronic Obstructive Pulmonary Disease, Congestive Heart Failure, and healthy older adults (n = 97) were monitored in the laboratory and the real-world (2.5 h), using a lower back wearable device. Two walking speed estimation pipelines were validated across 4408/1298 (2.5 h/laboratory) detected walking bouts, compared to 4620/1365 bouts detected by a multi-sensor reference system. In the laboratory, the mean absolute error (MAE) and mean relative error (MRE) for walking speed estimation ranged from 0.06 to 0.12 m/s and − 2.1 to 14.4%, with ICCs (Intraclass correlation coefficients) between good (0.79) and excellent (0.91). Real-world MAE ranged from 0.09 to 0.13, MARE from 1.3 to 22.7%, with ICCs indicating moderate (0.57) to good (0.88) agreement. Lower errors were observed for cohorts without major gait impairments, less complex tasks, and longer walking bouts. The analytical pipelines demonstrated moderate to good accuracy in estimating walking speed. Accuracy depended on confounding factors, emphasizing the need for robust technical validation before clinical application. Trial registration: ISRCTN – 12246987

    Brief communication : When Adam delved : an activity-related lesion in three human skeletal populations

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    A rare, activity-related lesion, the clay-shoveller's fracture, was identified during osteological analysis in three human populations dating from the Roman to the later Medieval period in England, circa fourth to 14th centuries A.D. The prevalence of this fracture in these populations suggests an osteological indicator for several possible manual activities, but also one that may be the result of a long-standing human subsistence adaptation requiring digging in the soil. Since males as opposed to females appear to be preferentially affected, the occurrence of such injuries has the potential to provide an insight into the sexual division of labor in earlier human populations

    A foot deformity from a Romano-British cemetery at Gloucester, England and the current evidence for talipes in palaeopathology.

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    A male skeleton from the Romano-British site at Kingsholm, Gloucester, is described with abnormalities in the humerus, femur, tibia, fibula and foot. Computed tomography of the femora to enable cross-sectional analysis suggested altered normal gait to compensate for the deformity. Differential diagnoses are considered and a diagnosis of clubfoot deformity is suggested. Palaeopathological evidence for clubfoot is rare in the literature but the cases reported to date are reviewed

    A foot deformity from a Romano-British cemetery at Gloucester, England and the current evidence for Talipes in palaeopathology

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    A male skeleton from the Romano-British site at Kingsholm, Gloucester, is described with abnormalities in the humerus, femur, tibia, fibula and foot. Computed tomography of the femora to enable cross-sectional analysis suggested altered normal gait to compensate for the deformity. Differential diagnoses are considered and a diagnosis of clubfoot deformity is suggested. Palaeopathological evidence for clubfoot is rare in the literature but the cases reported to date are reviewed

    Investigation of a Romano-British rural ritual in Bedford, England

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    The Romano-British cemetery at Kempston, a suburb of Bedford, was excavated in 1992 by Bedfordshire County Archaeology Service and revealed 12 individuals who had been decapitated and 12 who were placed in the prone position. These practices are a regular feature of internments in rural and a few urban cemeteries dating to the late Roman period in a well-defined area of central England. The osteological findings are discussed and placed in the context of more widespread Iron Age customs

    The small GTPase RhoA is required to maintain spinal cord neuroepithelium organization and the neural stem cell pool

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    The regulation of adherens junctions (AJs) is critical for multiple events during CNS development, including the formation and maintenance of the neuroepithelium. We have addressed the role of the small GTPase RhoA in the developing mouse nervous system using tissue-specific conditional gene ablation. We show that, in the spinal cord neuroepithelium, RhoA is essential to localize N-cadherin and beta-catenin to AJs and maintain apical-basal polarity of neural progenitor cells. Ablation of RhoA caused the loss of AJs and severe abnormalities in the organization of cells within the neuroepithelium, including decreased neuroepithelial cell proliferation and premature cell-cycle exit, reduction of the neural stem cell pool size, and the infiltration of neuroepithelial cells into the lumen of the ventricle. We also show that, in the absence of RhoA, its effector, mammalian diaphanous-related formin1 (mDia1), does not localize to apical AJs in which it likely stabilizes intracellular adhesion by promoting local actin polymerization and microtubule organization. Furthermore, expressing a dominant-negative form of mDia1 in neural stem/progenitor cells results in a similar phenotype compared with that of the RhoA conditional knock-out, namely the loss of AJs and apical polarity. Together, our data show that RhoA signaling is necessary for AJ regulation and for the maintenance of mammalian neuroepithelium organization preventing precocious cell-cycle exit and differentiation

    Cleaning the dead. Neolithic ritual processing of human bone at Scaloria Cave, Italy

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    Detailed taphonomic and skeletal analyses document the diverse and often unusual burial practices employed by European Neolithic populations. In the Upper Chamber at Scaloria Cave in southern Italy, the remains of some two dozen individuals had been subjected to careful and systematic defleshing and disarticulation involving cutting and scraping with stone tools, which had left their marks on the bones. In some cases these were not complete bodies but parts of bodies that had been brought to the cave from the surrounding area. The fragmented and commingled burial layer that resulted from these activities indicates complex secondary burial rites effecting the transition from entirely living to entirely dead individuals

    The Identity of the St Bees Lady, Cumbria: An Osteobiographical Approach

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    Using an Osteobiographical approach, this contribution considers the identity of the woman found alongside the St Bees Man, one of the best-preserved archaeological bodies ever discovered. Osteological, isotopic and radiocarbon analyses, combined with the archaeological context of the burial and documented social history, provide the basis for the identification of a late 14th-century heiress whose activities were at the heart of medieval northern English geopolitics
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