26 research outputs found

    Acute flaccid paralysis with anterior myelitis - California, June 2012-June 2014.

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    In August 2012, the California Department of Public Health (CDPH) was contacted by a San Francisco Bay area clinician who requested poliovirus testing for an unvaccinated man aged 29 years with acute flaccid paralysis (AFP) associated with anterior myelitis (i.e., evidence of inflammation of the spinal cord involving the grey matter including anterior horn cell bodies) and no history of international travel during the month before symptom onset. Within 2 weeks, CDPH had received reports of two additional cases of AFP with anterior myelitis of unknown etiology. Testing at CDPH's Viral and Rickettsial Disease Laboratory for stool, nasopharyngeal swab, and cerebrospinal fluid (CSF) did not detect the presence of an enterovirus (EV), the genus of the family Picornaviridae that includes poliovirus. Additional laboratory testing for infectious diseases conducted at the CDPH Viral and Rickettsial Disease Laboratory did not identify a causative agent to explain the observed clinical syndrome reported among the patients. To identify other cases of AFP with anterior myelitis and elucidate possible common etiologies, CDPH posted alerts in official communications for California local health departments during December 2012, July 2013, and February 2014. Reports of cases of neurologic illness received by CDPH were investigated throughout this period, and clinicians were encouraged to submit clinical samples for testing. A total of 23 cases of AFP with anterior myelitis of unknown etiology were identified. Epidemiologic and laboratory investigation did not identify poliovirus infection as a possible cause for the observed cases. No common etiology was identified to explain the reported cases, although EV-D68 was identified in upper respiratory tract specimens of two patients. EV infection, including poliovirus infection, should be considered in the differential diagnosis in cases of AFP with anterior myelitis and testing performed per CDC guidelines

    Herpes simplex virus encephalitis is a trigger of brain autoimmunity

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    In 5 prospectively diagnosed patients with relapsing post-herpes simplex encephalitis (HSE), N-methyl-D-aspartate receptor (NMDAR) antibodies were identified. Antibody synthesis started 1 to 4 weeks after HSE, preceding the neurological relapse. Three of 5 patients improved postimmunotherapy, 1 spontaneously, and 1 has started to improve. Two additional patients with NMDAR antibodies, 9 with unknown neuronal surface antibodies, and 1 with NMDAR and unknown antibodies, were identified during retrospective assessment of 34 HSE patients; the frequency of autoantibodies increased over time (serum, p=0.004; cerebrospinal fluid, p=0.04). The 3 retrospectively identified NMDAR antibody-positive patients also had evidence of relapsing post-HSE. Overall, these findings indicate that HSE triggers NMDAR antibodies and potentially other brain autoimmunity

    Plumes et Pinceaux : Discours de femmes sur l’art en Europe (1750-1850) — Essais

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    Si l’histoire de l’art s’est depuis longtemps intéressée à ceux qui la pensent et l’écrivent, donnant matière à maints études et ouvrages de fonds (dictionnaires, essais, anthologie...), ce n’est que relativement récemment, depuis la toute fin des années 1980, qu’elle prend en compte les femmes à l’œuvre dans la pratique et l’écriture de l’histoire des arts visuels. Issu d’un colloque consacré aux historiennes de l’art à l’époque de Juliette Récamier, cet ouvrage explore et donne à voir les carrières, les postures et les points de vue de femmes sur l’art durant une petite centaine d’années – de 1760 à 1840, période d’intenses bouleversements dans toute l’Europe –, faisant se confronter des regards français, anglais et allemands de praticiennes comme Élisabeth Vigée-Lebrun, de salonnière et romancière comme Marie d’Agoult ou Germaine de Staël, ou encore de restauratrice de tableaux, de journalistes ou de critiques d’art. Ces essais mettent en évidence la variété des écrits et des stratégies mises en place par les femmes pour s’octroyer une place – elle-même variable selon les cas – dans un univers essentiellement masculin. Ce volume d’essais entend ainsi contribuer à l’histoire de l’art sous un angle qu’il n’est désormais plus permis d’ignorer. Le second volume de cet ouvrage – également intégralement accessible en ligne – permet d’approfondir cette plongée dans une histoire méconnue en donnant à lire ou relire une partie des textes de ces femmes, documents souvent oubliés ou omis, parfois même encore à l’état de manuscrits inédits

    Macrophage polarisation associated with atherosclerosis differentially affects their capacity to handle lipid

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    Background and aims Lipid-rich foam cell macrophages drive atherosclerosis via several mechanisms, including inflammation, lipid uptake, lipid deposition and plaque vulnerability. The atheroma environment shapes macrophage function and phenotype; anti-inflammatory macrophages improve plaque stability while pro-inflammatory macrophages promote rupture. Current evidence suggests a variety of macrophage phenotypes occur in atherosclerotic plaques with local lipids, cytokines, oxidised phospholipids and pathogenic stimuli altering their phenotype. In this study, we addressed differential functioning of macrophage phenotypes via a systematic analysis of in vitro polarised, human monocyte-derived macrophage phenotypes, focussing on molecular events that regulate foam-cell formation. Methods We examined transcriptomes, protein levels and functionally determined lipid handling and foam cell formation capacity in macrophages polarised with IFNγ+LPS, IL–4, IL–10, oxPAPC and CXCL4. Results RNA sequencing of differentially polarised macrophages revealed distinct gene expression changes, with enrichment in atherosclerosis and lipid-associated pathways. Analysis of lipid processing activity showed IL–4 and IL–10 macrophages have higher lipid uptake and foam cell formation activities, while inflammatory and oxPAPC macrophages displayed lower foam cell formation. Inflammatory macrophages showed low lipid uptake, while higher lipid uptake in oxPAPC macrophages was matched by increased lipid efflux capacity. Conclusions Atherosclerosis-associated macrophage polarisation dramatically affects lipid handling capacity underpinned by major transcriptomic changes and altered protein levels in lipid-handling gene expression. This leads to phenotype-specific differences in LDL uptake, cellular cholesterol levels and cholesterol efflux, informing how the plaque environment influences atherosclerosis progression by influencing macrophage phenotypes

    The LGBTQI health forum: an innovative interprofessional initiative to support curriculum reform

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    Lesbian, gay, bisexual, transgender, queer, and intersex (LGBTQI) individuals continue to face barriers to accessing appropriate and comprehensive healthcare. Compounding this problem, healthcare trainees report few training opportunities and low levels of preparedness to care for LGBTQI patients. In 2009, an interprofessional group of students and a faculty advisor at the University of California, San Francisco, developed a novel student-organized LGBTQI Health Forum for medical, dental, pharmacy, nursing, and physical therapy students to deliver LGBTQI health content that was otherwise absent from the formal curriculum. This elective course has evolved based upon participant feedback, emerging educational strategies, and the existing curricula infrastructure at our institution. After eight years of growth, this 10-contact hour weekend elective attracts over 250 participants each year. Plenary sessions deliver foundational terminology and skills to all attendees. Learners then select breakout sessions to attend, allowing for an individualized curriculum based upon specific interests and knowledge gaps. Breakout session topics prioritize traditionally underrepresented aspects of LGBTQI health in professional school curricula. This Forum serves as a model in which to supplement LGBTQI content into existing school curricula and offers an opportunity for interprofessional education. Next steps include conducting a formal evaluation of the curriculum, expanding our performance-based assessments, and potentially implementing a continuing education program for licensed practitioners. With a core group of interprofessional student organizers and a faculty champion, other institutions may view this course architecture as a potential way to offer learners not only LGBTQI content, but other underrepresented subjects into their own educational programs

    Use of Clinical and Neuroimaging Characteristics to Distinguish Temporal Lobe Herpes Simplex Encephalitis From Its Mimics

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    BackgroundWe describe the spectrum of etiologies associated with temporal lobe (TL) encephalitis and identify clinical and radiologic features that distinguish herpes simplex encephalitis (HSE) from its mimics.MethodsWe reviewed all adult cases of encephalitis with TL abnormalities on magnetic resonance imaging (MRI) from the California Encephalitis Project. We evaluated the association between specific clinical and MRI characteristics and HSE compared with other causes of TL encephalitis and used multivariate logistic modeling to identify radiologic predictors of HSE.ResultsOf 251 cases of TL encephalitis, 43% had an infectious etiology compared with 16% with a noninfectious etiology. Of infectious etiologies, herpes simplex virus was the most commonly identified agent (n = 60), followed by tuberculosis (n = 8) and varicella zoster virus (n = 7). Of noninfectious etiologies, more than half (n = 21) were due to autoimmune disease. Patients with HSE were older (56.8 vs 50.2 years; P = .012), more likely to be white (53% vs 35%; P = .013), more likely to present acutely (88% vs 64%; P = .001) and with a fever (80% vs 49%; P < .001), and less likely to present with a rash (2% vs 15%; P = .010). In a multivariate model, bilateral TL involvement (odds ratio [OR], 0.38; 95% confidence interval [CI], .18-.79; P = .010) and lesions outside the TL, insula, or cingulate (OR, 0.37; 95% CI, .18-.74; P = .005) were associated with lower odds of HSE.ConclusionsIn addition to HSE, other infectious and noninfectious etiologies should be considered in the differential diagnosis for TL encephalitis, depending on the presentation. Specific clinical and imaging features may aid in distinguishing HSE from non-HSE causes of TL encephalitis
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