87 research outputs found

    Eastern Mediterranean Mobility in the Bronze and Early Iron Ages: Inferences from Ancient DNA of Pigs and Cattle

    Get PDF
    The Late Bronze of the Eastern Mediterranean (1550-1150 BCE) was a period of strong commercial relations and great prosperity, which ended in collapse and migration of groups to the Levant. Here we aim at studying the translocation of cattle and pigs during this period. We sequenced the first ancient mitochondrial and Y chromosome DNA of cattle from Greece and Israel and compared the results with morphometric analysis of the metacarpal in cattle. We also increased previous ancient pig DNA datasets from Israel and extracted the first mitochondrial DNA for samples from Greece. We found that pigs underwent a complex translocation history, with links between Anatolia with southeastern Europe in the Bronze Age, and movement from southeastern Europe to the Levant in the Iron I (ca. 1150-950 BCE). Our genetic data did not indicate movement of cattle between the Aegean region and the southern Levant. We detected the earliest evidence for crossbreeding between taurine and zebu cattle in the Iron IIA (ca. 900 BCE). In light of archaeological and historical evidence on Egyptian imperial domination in the region in the Late Bronze Age, we suggest that Egypt attempted to expand dry farming in the region in a period of severe droughts

    Impact of cortical and subcortical atrophy in the diagnosis and prognosis of bvFTD: A multicenter longitudinal study

    Get PDF
    AbstractBackgroundThe behavioral variant of frontotemporal dementia (bvFTD) presents with variable patterns of cortical and subcortical atrophy on Magnetic Resonance Imaging (MRI). We aimed to assess the clinical utility of two reproducible measurements of cerebral atrophy (Harper's visual atrophy scale [HVAS], and the Magnetic Resonance Parkinsonism Index [MRPI]) in a large multicenter sample of bvFTD with longitudinal follow‐up.MethodsWe included 466 participants from three centers: 241 bvFTD (according to the International bvFTD Criteria Consortium), and 225 healthy controls (HC). Clinical deterioration was assessed with Mini‐Mental State Examination (MMSE) and the Clinical Deterioration Scale Sum‐of‐boxes (CDR‐sb). bvFTD participants were considered to have an increased certainty of underlying Frontotemporal Lobar Degeneration (+FTLD) when: (i) FTLD was confirmed at autopsy (n=72); (ii) a secondary FTLD‐related phenotype was identified during follow‐up (n=47) or (iii) a FTLD‐related mutation was found (n=49). Six raters blinded to clinical data were first asked to dichotomize participants according to the presence of "a clear pattern of atrophy suggestive of probable bvFTD", and then applied the HVAS (ICC(2,k)=.86 to .96). The MRPI was calculated with a fully automated algorithm.ResultsMean age of bvFTD participants was 63.3 ± 10, 68% were male (MMSE=23 ± 7 and CDR‐sb=6.7 ± 3.5). Blinded raters had 52% sensitivity and 97% specificity for the identification of bvFTD participants (AUC=.74, p=.001). All HVAS measures with the exception of posterior atrophy discriminated between bvFTD and HC (AUC=.77 to .83, p<.001). The composite bvFTD score (average score of orbitofrontal, anterior cingulate, anterior temporal, medial temporal lobe and frontal insula regions) showed the best diagnostic accuracy for the differentiation of bvFTD from HC (AUC=.91, p<.001 in +FTLD). This composite score also differentiated between bvFTD participants that were not considered to have a clear pattern of atrophy suggestive of probable bvFTD (blinded raters) and HC (p<.001). We hypothesized that HVAS and MRPI scores may be independent predictors of clinical deterioration and survival in bvFTD (definitive results pending).ConclusionThe combination of HVAS and MRPI may provide valuable diagnostic and prognostic information in the behavioral syndromes verifying bvFTD criteria. These measures represent reliable, reproducible and affordable imaging biomarkers

    Diagnostic Utility of Measuring Cerebral Atrophy in the Behavioral Variant of Frontotemporal Dementia and Association With Clinical Deterioration

    Get PDF
    Can widely available measures of atrophy on magnetic resonance imaging increase diagnostic certainty of underlying frontotemporal lobar degeneration (FTLD) and estimate clinical deterioration in the behavioral variant of frontotemporal dementia (bvFTD)? This diagnostic/prognostic study investigated the clinical utility of 5 validated visual atrophy scales (VAS) and the Magnetic Resonance Parkinsonism Index. When combined, VAS showed excellent diagnostic performance for differentiating between bvFTD with high and low confidence of FTLD and for the estimation of longitudinal clinical deterioration, whereas the Magnetic Resonance Parkinsonism Index was increased in bvFTD with underlying 4-repeat tauopathies. These findings suggest that, in bvFTD, VAS can be used to increase diagnostic certainty of underlying FTLD and estimate longitudinal clinical deterioration. This diagnostic/prognostic study assesses the utility of 6 visual atrophy scales and the Magnetic Resonance Parkinsonism Index in patients with behavioral variant frontotemporal dementia to distinguish those with high vs low confidence of frontotemporal lobar degeneration. The presence of atrophy on magnetic resonance imaging can support the diagnosis of the behavioral variant of frontotemporal dementia (bvFTD), but reproducible measurements are lacking. To assess the diagnostic and prognostic utility of 6 visual atrophy scales (VAS) and the Magnetic Resonance Parkinsonism Index (MRPI). In this diagnostic/prognostic study, data from 235 patients with bvFTD and 225 age- and magnetic resonance imaging-matched control individuals from 3 centers were collected from December 1, 1998, to September 30, 2019. One hundred twenty-one participants with bvFTD had high confidence of frontotemporal lobar degeneration (FTLD) (bvFTD-HC), and 19 had low confidence of FTLD (bvFTD-LC). Blinded clinicians applied 6 previously validated VAS, and the MRPI was calculated with a fully automated approach. Cortical thickness and subcortical volumes were also measured for comparison. Data were analyzed from February 1 to June 30, 2020. The main outcomes of this study were bvFTD-HC or a neuropathological diagnosis of 4-repeat (4R) tauopathy and the clinical deterioration rate (assessed by longitudinal measurements of Clinical Dementia Rating Sum of Boxes). Measures of cerebral atrophy included VAS scores, the bvFTD atrophy score (sum of VAS scores in orbitofrontal, anterior cingulate, anterior temporal, medial temporal lobe, and frontal insula regions), the MRPI, and other computerized quantifications of cortical and subcortical volumes. The areas under the receiver operating characteristic curve (AUROC) were calculated for the differentiation of participants with bvFTD-HC and bvFTD-LC and controls. Linear mixed models were used to evaluate the ability of atrophy measures to estimate longitudinal clinical deterioration. Of the 460 included participants, 296 (64.3%) were men, and the mean (SD) age was 62.6 (11.4) years. The accuracy of the bvFTD atrophy score for the differentiation of bvFTD-HC from controls (AUROC, 0.930; 95% CI, 0.903-0.957) and bvFTD-HC from bvFTD-LC (AUROC, 0.880; 95% CI, 0.787-0.972) was comparable to computerized measures (AUROC, 0.973 [95% CI, 0.954-0.993] and 0.898 [95% CI, 0.834-0.962], respectively). The MRPI was increased in patients with bvFTD and underlying 4R tauopathies compared with other FTLD subtypes (14.1 [2.0] vs 11.2 [2.6] points; P < .001). Higher bvFTD atrophy scores were associated with faster clinical deterioration in bvFTD (1.86-point change in Clinical Dementia Rating Sum of Boxes score per bvFTD atrophy score increase per year; 95% CI, 0.99-2.73; P < .001). Based on these study findings, in bvFTD, VAS increased the diagnostic certainty of underlying FTLD, and the MRPI showed potential for the detection of participants with underlying 4R tauopathies. These widely available measures of atrophy can also be useful to estimate longitudinal clinical deterioration

    Medication adherence as a predictor of 30-day hospital readmissions

    No full text
    Olga Z Rosen,1 Rachel Fridman,2 Bradley T Rosen,3,4 Rita Shane,1 Joshua M Pevnick4,5 1Department of Pharmacy Services, Cedars-Sinai Medical Center, 2Resources &amp; Outcomes Management, Cedars-Sinai Health System, 3Department of Medicine, ISP Hospitalist Service, Cedars-Sinai Medical Center, 4University of California, Los Angeles School of Medicine, 5Division of General Internal Medicine, Department of Medicine, Cedars-Sinai Medical Center, Los Angeles, CA, USA Purpose: The aim of this study was to test whether patient medication adherence, a modifiable risk factor obtainable at hospital admission, predicts readmission within 30&nbsp;days. Patients and methods: We used a retrospective cohort study design to test whether patient medication adherence to all chronic medications, as determined by the 4-item Morisky Medication Adherence Scale (MMAS-4) administered by a pharmacist at the time of hospital admission, predicts 30-day readmissions. We compared readmission rates among 385 inpatients who had their adherence assessed from February 1, 2013, to January 31, 2014. Multiple logistic regression was used to examine the benefit of adding medication adherence to previously published variables that have been shown to predict 30-day readmissions. Results: Patients with low and intermediate adherence (combined) had readmission rates of 20.0% compared to a readmission rate of 9.3% for patients with high adherence (P=0.005). By adding MMAS-4 data to previously published variables that have been shown to predict 30-day readmissions, we found that patients with low and intermediate medication adherence had an adjusted 2.54-fold higher odds of readmission compared to those in patients with high adherence (95% confidence interval [CI]: 1.32&ndash;4.90, P=0.005). The model&rsquo;s predictive power, as measured by the c-statistic, improved from 0.65 to 0.70 after adding adherence. Conclusion: Because medication adherence assessed at hospital admission was independently associated with 30-day readmission risk, it offers potential for targeting interventions to improve adherence. Keywords: rehospitalization, predictive model, transition of care, care transitions, nonadherence, MMAS-

    L'HumanitĂ© : frĂŒher die Neue Welt : deutschsprachiges Organ der Kommunistischen Partei (SFIC)

    No full text
    26 septembre 19251925/09/26 (N224).Appartient à l’ensemble documentaire : Alsace

    Pigeons at the edge of the empire: Bioarchaeological evidences for extensive management of pigeons in a Byzantine desert settlement in the southern Levant - Fig 1

    No full text
    <p><b>Location map (A) for Shivta; aerial photograph and plan (B) of the site; pigeon tower during excavations (C); and a pigeon skull (C-a), bones (C-b), egg shell fragments (C-c) and droppings (C-d) from Shivta.</b> Photographs by Y. Tepper; maps drawn by Anat Regev-Gisis.</p

    Log size index analyses.

    No full text
    <p>The abscissa represents the mean from each element of the wild pigeons in the BMNH collections. (a) averages and ranges of the LSI for the Shivta pigeons and reference groups; (b) lsi for all elements pooled for archaeological pigeons.</p
    • 

    corecore