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排序方式: 共有445条查询结果,搜索用时 15 毫秒
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Jon Equiza Gorka Fernandez-Eulate Jon Rodriguez-Antigedad David Campo-Caballero Amaia Muoz-Lopetegi Miguel-Angel Goenaga Sanchez Jose Angel Larrea Ana de Arce Borda 《Journal of neurovirology》2020,26(2):289-291
Cerebral venous thrombosis (CVT) is characterized by its variety of neurological manifestations and difficulty in diagnosis. In subacute cases, the main symptoms are secondary to increased intracranial pressure. This condition is associated with an extensive range of medical disorders, but only 2% are caused by a CNS infection in recent series. We report a 45-year-old patient, with no previous medical history, who developed a syndrome of increased intracranial pressure as the presentation of a cryptococcal meningoencephalitis (CM) complicated with a CVT. The patient was first diagnosed of a CVT, and later on, the VIH infection and the CM diagnosis were made. Despite being treated with anticoagulation, liposomal amphotericin B, and a therapeutic lumbar puncture, the patient continued to deteriorate and suffered a respiratory arrest secondary to the increased intracranial pressure, with subsequent brain death. Cryptococcus is an infrequent cause of CNS infection in developed countries, despite being the most frequent cause of meningits in adults in several countries with high rates of HIV infection. CVT is a very rare complication of CM which can contribute to worsen the increased intracranial pressure and in consequence, its prognosis and outcome. A high level of suspicion is needed for diagnosing CM as the underlying cause of CVT and the subsequent increased intracranial pressure should be managed exhaustively. 相似文献
354.
Objective
To analyse the inequalities in life expectancy in the Spanish population over the age of 65 according to educational level.Method
Cross sectional study on the Spanish population aged 65 years and over. Life expectancy and healthy life expectancy were calculated combining mortality, health and population data.Results
People aged 65 and over with a lower educational level had shorter lives, with fewer years of good health and more years of poor health. Women lived longer, but with proportionally more years of poor health.Discussion
Social inequalities in health must be considered in the current debate on delaying the age of retirement. 相似文献355.
Zimmerman T Oyarzabal J Sebastián ES Majumdar S Tejo BA Siahaan TJ Blanco FJ 《Chemical biology & drug design》2007,70(4):347-353
We have used nuclear magnetic resonance to characterize the binding site of two intercellular adhesion molecule-1 derived cyclic peptides, cIBC and cIBR, to the I-domain of leukocyte function-associated antigen-1. These peptides inhibit the leukocyte function-associated antigen-1/intercellular adhesion molecule-1 interaction known to play a key role in autoimmune diseases and cancer metastasis. Perturbation of the chemical shifts and intensities of the nuclear magnetic resonance signals corresponding to a number of residues of the I-domain of leukocyte function-associated antigen-1 show that both peptides bind to the I-domain allosteric site, the binding site of I-domain allosteric inhibitors such as lovastatin, and therefore the peptides probably also act as allosteric inhibitors of leukocyte function-associated antigen-1. Molecular models of the interaction of these two cyclic peptides with leukocyte function-associated antigen-1 I-domain show that the binding mode of the three molecules are analogous: the hydrophobic residues of the peptides remain buried and occupy the same positions as the apolar groups of lovastatin, while the peptides regions containing the most polar residues are flexible and primarily exposed to the solvent. These results suggest an allosteric mechanism for the inhibitory effect on T-cell adhesion displayed by both peptides, which exhibit potential as therapeutic agents. 相似文献
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Øyvind Osnes‐Ringen Amaia O. Azqueta Morten C. Moe Charlotta Zetterström Magnus Røger Andrew R. Collins 《Acta ophthalmologica. Supplement》2013,91(7):652-656
Purpose: DNA damage has been described in the human cataractous lens epithelium, and oxidative stress generated by UV radiation and endogenous metabolic processes has been suggested to play a significant role in the pathogenesis of cataract. In this study, the aim was to explore the quality and relative quantity of DNA damage in lens epithelium of cataract patients in vivo and after incubation in a cell culture system. Methods: Capsulotomy specimens were analysed, before and after 1 week of ex vivo cultivation, using the comet assay to measure DNA strand breaks, oxidized purine and pyrimidine bases and UV‐induced cyclobutane pyrimidine dimers. Results: DNA strand breaks were barely detectable, oxidized pyrimidines and pyrimidine dimers were present at low levels, whereas there was a relatively high level of oxidized purines, which further increased after cultivation. Conclusion: The observed levels of oxidized purines in cataractous lens epithelium may support a theory consistent with light damage and oxidative stress as mediators of molecular damage to the human lens epithelium. Damage commonly associated with UV‐B irradiation was relatively low. The levels of oxidized purines increased further in a commonly used culture system. This is of interest considering the importance and versatility of ex vivo systems in studies exploring the pathogenesis of cataract. 相似文献
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Boehm M Hoy B Rohde M Tegtmeyer N Bæk KT Oyarzabal OA Brøndsted L Wessler S Backert S 《Gut pathogens》2012,4(1):3-12