196 research outputs found

    The aisleless cruciform church: its occurrence and meanings in romanesque Europe

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    This study aims to establish the foundation for the theory that the aisleless cruciform church was a building type exclusive to the priesthood until the late eleventh century, pointing to the distinctive identity of the intended occupants of such buildings in the eleventh and twelfth centuriesβ€”canons, rather than monksβ€”and focusing on the hitherto undetected phenomena of the frequent appropriation of these churches by monks, as well as their replacement by aisled structures. A paradigm is proposed in the shape of the Basilica Apostolorum, an aisleless cruciform late-fourth-century church established in Milan by Bishop Ambrose, enduringly identified with the Cross. Acknowledged to have been the inspiration for similar examples into the following century, the plan of the Milanese building is said for the first time here to have been revived with the Carolingian Renaissance. The plan of Ambrose’s building was retained, even though its superstructure was refurbished after 1075. Its ancient associations still acknowledged, the plan type appears to have been relaunched then, coincident with major papal reforms, its crucial symbolism doubtless also resonating among proponents of the crusades. It is argued that the plan type was used systematically in England in the twelfth century by newly regularised communities of priests observing the Rule of St Augustine, promoted by the Milanese pope Alexander II, the importance of whose contribution has been underestimated. The adoption of the building type for the canons at post-Conquest York Cathedral, always seen as surprising in the context of major Anglo-Norman church architecture, is shown to have been consistent with this revived tradition, especially given the city’s association with Constantine, known for his attachment to the sign of the Cross. It is suggested that selection of the plan by reformed Benedictines in the twelfth century constituted its first use by monks, and that Stephen Harding’s circle was responsible for its deployment by early Cistercians, its Ambrosian connotations reflecting both the ethos of the reform movement and the new congregation’s desire for authenticity

    Arthroscopic debridement of the osteoarthritic knee combined with hyaluronic acid (Orthovisc(R)) treatment: A case series and review of the literature

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    OBJECTIVE: An evaluation of safety and efficacy of high molecular weight hyaluronan (HA) delivered at the time of arthroscopic debridement of the osteoarthritic knee. METHODS: Thirty consecutive patients who met inclusion and exclusion criteria underwent arthroscopic debridement by a single surgeon and concomitant delivery of 6 ml/90 mg HA (Orthovisc(R)). These patients were evaluated preoperatively, at 6 weeks, 3 and 6 months post-operatively. Evaluations consisted of WOMAC pain score, SF-36 Physical Component Summary (PCS) score and complications. RESULTS: No complications occurred during this study. Pre-op average WOMAC pain score was 6.8 +/- 3.5 (n = 30) with a reduction to 3.4 +/- 3.1 at 6 weeks (n = 27). Final average WOMAC pain score improved to 3.2 +/- 3.8 at six months (n = 23). No patients had deterioration of the WOMAC pain score. Mean pre-operative SF-36 PCS score was 39.0 +/- 10.4 with SF-36 PCS score of the bottom 25th percentile at 29.9 (n = 30). Post procedure and HA delivery, mean PCS score at 6 weeks improved to 43.7 +/- 8.0 with the bottom 25th percentile at 37.5 (n = 27). At 6 months, mean PCS score was 48.0 +/- 9.8 with the bottom 25th percentile improved to 45.8 (n = 23). CONCLUSION: The results show that concomitant delivery of high molecular weight hyaluronan (Orthovisc(R) - 6 ml/90 mg) is safe when given at the time of arthroscopic debridement of the osteoarthritic knee. By delivering HA (Orthovisc(R)) at the time of the arthroscopic debridement, there may be a decreased risk of joint infection and/or injection site pain. Furthermore, the combination of both procedures show efficacy in reducing WOMAC pain scores and improving SF-36 PCS scores over a six month period

    Unlocking biomarker discovery: Large scale application of aptamer proteomic technology for early detection of lung cancer

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    Lung cancer is the leading cause of cancer deaths, because ~84% of cases are diagnosed at an advanced stage. Worldwide in 2008, ~1.5 million people were diagnosed and ~1.3 million died – a survival rate unchanged since 1960. However, patients diagnosed at an early stage and have surgery experience an 86% overall 5-year survival. New diagnostics are therefore needed to identify lung cancer at this stage. Here we present the first large scale clinical use of aptamers to discover blood protein biomarkers in disease with our breakthrough proteomic technology. This multi-center case-control study was conducted in archived samples from 1,326 subjects from four independent studies of non-small cell lung cancer (NSCLC) in long-term tobacco-exposed populations. We measured >800 proteins in 15uL of serum, identified 44 candidate biomarkers, and developed a 12-protein panel that distinguished NSCLC from controls with 91% sensitivity and 84% specificity in a training set and 89% sensitivity and 83% specificity in a blinded, independent verification set. Performance was similar for early and late stage NSCLC. This is a significant advance in proteomics in an area of high clinical need

    A Review of Mesenchymal Stem Cell Injections for Osteoarthritis

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    Mesenchymal stem cell (MSC) injections for osteoarthritis is reviewed. Methods- PubMed search identifying articles in English from 2003-2018 that used intra- articular injection (IA), cartilage repair, cartilage regeneration, chondral injury, adipose stem cells, bone marrow stem cells, mesenchymal stem cells, or autologous stem cells. Results – 388 patients receiving IA MSC injections are discussed with data obtained from 10 case reports or case series, 4 randomized clinical trials (RCT), 1 cohort study, and 3 case controlled therapeutic studies. Conclusions – MSC injections may be an effective adjunct in the management of osteoarthritis and a variety of cartilage related pathologies

    Evaluation of the effect of prospective biomarker testing on progression-free survival in diffuse large B-cell lymphoma.

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    Novel treatment regimens combining chemotherapy with targeted agents are being developed for diffuse large B-cell lymphoma (DLBCL). These regimens are expected to show efficacy in biomarker-defined..

    Serum neurofilament dynamics predicts neurodegeneration and clinical progression in presymptomatic Alzheimer's disease

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    Neurofilament light chain (NfL) is a promising fluid biomarker of disease progression for various cerebral proteopathies. Here we leverage the unique characteristics of the Dominantly Inherited Alzheimer Network and ultrasensitive immunoassay technology to demonstrate that NfL levels in the cerebrospinal fluid (n = 187) and serum (n = 405) are correlated with one another and are elevated at the presymptomatic stages of familial Alzheimer's disease. Longitudinal, within-person analysis of serum NfL dynamics (n = 196) confirmed this elevation and further revealed that the rate of change of serum NfL could discriminate mutation carriers from non-mutation carriers almost a decade earlier than cross-sectional absolute NfL levels (that is, 16.2 versus 6.8 years before the estimated symptom onset). Serum NfL rate of change peaked in participants converting from the presymptomatic to the symptomatic stage and was associated with cortical thinning assessed by magnetic resonance imaging, but less so with amyloid-Ξ² deposition or glucose metabolism (assessed by positron emission tomography). Serum NfL was predictive for both the rate of cortical thinning and cognitive changes assessed by the Mini-Mental State Examination and Logical Memory test. Thus, NfL dynamics in serum predict disease progression and brain neurodegeneration at the early presymptomatic stages of familial Alzheimer's disease, which supports its potential utility as a clinically useful biomarker

    Emerging Viruses in the Felidae: Shifting Paradigms

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    The domestic cat is afflicted with multiple viruses that serve as powerful models for human disease including cancers, SARS and HIV/AIDS. Cat viruses that cause these diseases have been studied for decades revealing detailed insight concerning transmission, virulence, origins and pathogenesis. Here we review recent genetic advances that have questioned traditional wisdom regarding the origins of virulent Feline infectious peritonitis (FIP) diseases, the pathogenic potential of Feline Immunodeficiency Virus (FIV) in wild non-domestic Felidae species, and the restriction of Feline Leukemia Virus (FeLV) mediated immune impairment to domestic cats rather than other Felidae species. The most recent interpretations indicate important new evolutionary conclusions implicating these deadly infectious agents in domestic and non-domestic felids
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