Publications by authors named "M-C Loureiro"

The largest risk factor for dementia is age. Heterochronic blood exchange studies have uncovered age-related blood factors that demonstrate 'pro-aging' or 'pro-youthful' effects on the mouse brain. The clinical relevance and combined effects of these factors for humans is unclear.

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  • * Diagnosis is based on recognizing specific characteristics of the lesions and the chronic nature of the disease, without the need for definitive biological tests or biopsies.
  • * Treatment options depend on the disease's severity and can involve antibiotics, hormonal therapies, and surgery, with imaging techniques like high-frequency ultrasound being essential for accurate assessment and monitoring of the condition.
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  • The study aimed to identify fluid biomarkers in cerebrospinal fluid (CSF) for progressive supranuclear palsy (PSP) to aid in developing new therapies, utilizing advanced proteomic analysis methods.
  • Researchers analyzed a total of 136 participants across various groups, comparing individuals with PSP (Richardson syndrome) against healthy controls, using sophisticated platforms to assess the presence of specific proteins (SOMAmers) in CSF.
  • Findings revealed that many SOMAmers were differentially expressed in PSP patients, indicating potential biomarkers, with three significant biological pathways linked to disease progression identified, including synaptic functions and cytokine interactions.
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The pathophysiological mechanisms driving disease progression of frontotemporal lobar degeneration (FTLD) and corresponding biomarkers are not fully understood. We leveraged aptamer-based proteomics (> 4,000 proteins) to identify dysregulated communities of co-expressed cerebrospinal fluid proteins in 116 adults carrying autosomal dominant FTLD mutations () compared to 39 noncarrier controls. Network analysis identified 31 protein co-expression modules.

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The identification of activating mutations in NOTCH1 in 50% of T cell acute lymphoblastic leukemia has generated interest in elucidating how these mutations contribute to oncogenic transformation and in targeting the pathway. A phenotypic screen identified compounds that interfere with trafficking of Notch and induce apoptosis via an endoplasmic reticulum (ER) stress mechanism. Target identification approaches revealed a role for SLC39A7 (ZIP7), a zinc transport family member, in governing Notch trafficking and signaling.

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