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1.
BMC Psychiatry ; 20(1): 458, 2020 09 22.
Artigo em Inglês | MEDLINE | ID: mdl-32962684

RESUMO

BACKGROUND: Promoting well-being and preventing poor mental health in young people is a major global priority. Building emotional competence (EC) skills via a mobile app may be an effective, scalable and acceptable way to do this. However, few large-scale controlled trials have examined the efficacy of mobile apps in promoting mental health in young people; none have tailored the app to individual profiles. METHOD/DESIGN: The Emotional Competence for Well-Being in Young Adults cohort multiple randomised controlled trial (cmRCT) involves a longitudinal prospective cohort to examine well-being, mental health and EC in 16-22 year olds across 12 months. Within the cohort, eligible participants are entered to either the PREVENT trial (if selected EC scores at baseline within worst-performing quartile) or to the PROMOTE trial (if selected EC scores not within worst-performing quartile). In both trials, participants are randomised (i) to continue with usual practice, repeated assessments and a self-monitoring app; (ii) to additionally receive generic cognitive-behavioural therapy self-help in app; (iii) to additionally receive personalised EC self-help in app. In total, 2142 participants aged 16 to 22 years, with no current or past history of major depression, bipolar disorder or psychosis will be recruited across UK, Germany, Spain, and Belgium. Assessments take place at baseline (pre-randomisation), 1, 3 and 12 months post-randomisation. Primary endpoint and outcome for PREVENT is level of depression symptoms on the Patient Health Questionnaire-9 at 3 months; primary endpoint and outcome for PROMOTE is emotional well-being assessed on the Warwick-Edinburgh Mental Wellbeing Scale at 3 months. Depressive symptoms, anxiety, well-being, health-related quality of life, functioning and cost-effectiveness are secondary outcomes. Compliance, adverse events and potentially mediating variables will be carefully monitored. CONCLUSIONS: The trial aims to provide a better understanding of the causal role of learning EC skills using interventions delivered via mobile phone apps with respect to promoting well-being and preventing poor mental health in young people. This knowledge will be used to develop and disseminate innovative evidence-based, feasible, and effective Mobile-health public health strategies for preventing poor mental health and promoting well-being. TRIAL REGISTRATION: ClinicalTrials.gov ( www.clinicaltrials.org ). Number of identification: NCT04148508 November 2019.


Assuntos
Telefone Celular , Aplicativos Móveis , Adolescente , Adulto , Bélgica , Alemanha , Humanos , Saúde Mental , Estudos Prospectivos , Qualidade de Vida , Espanha , Adulto Jovem
2.
Health Qual Life Outcomes ; 16(1): 72, 2018 Apr 23.
Artigo em Inglês | MEDLINE | ID: mdl-29688854

RESUMO

BACKGROUND: Most of the research on psychopathology has provided an incomplete picture of mental health by focusing on vulnerability factors and omitting the transversal processes that may explain human adapted functioning. Moreover, research has not sufficiently addressed prospective protective factors for mental health. New theoretical and empirical endeavors aim to incorporate this perspective, particularly in the realm of emotional disorders. A positive view of the future is an indispensable process in attaining desired goals and wellbeing. Openness to the Future is a construct characterized by positive affectivity towards the future, which can be a protective factor for mental health. Although some scales assess future orientations, the complexity of this concept has not yet been captured; therefore, there is a need for new instruments. This study presents the development and validation of a scale for measuring Openness to the Future in clinical (n = 412) and community (n = 890) samples. METHODS: Psychometric properties of the OFS were analyzed using Confirmatory Factor Analysis (CFA) and Item Response Theory (IRT) analyses, establishing cut-off points to better classify these two groups. Moreover, convergent and discriminant validity were examined by correlating the OFS with theoretically related constructs. RESULTS: Results support a unidimensional structure and indicate that the items function similarly across clinical and community samples. Moreover, the Openness to the Future scale shows good convergent and discriminant validity. CONCLUSIONS: These findings suggest that the Openness to the Future scale is a valid and brief measure of openness to the future for use with clinical and community samples, and it could help to fill a gap in the literature regarding attitudes towards the future and their implications. Openness to the Future is presented as an empirically feasible and theoretically consistent construct that includes both prospective and protective factors in the psychopathological chart.


Assuntos
Adaptação Psicológica , Atitude Frente a Saúde , Transtornos Mentais/fisiopatologia , Transtornos Mentais/psicologia , Qualidade de Vida/psicologia , Inquéritos e Questionários/normas , Adulto , Análise Fatorial , Feminino , Humanos , Masculino , Estudos Prospectivos , Psicometria , Reprodutibilidade dos Testes
3.
Compr Psychiatry ; 55(7): 1738-43, 2014 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-24973225

RESUMO

The General Self Efficacy Scale (GSES-12) is a short version of the Sherer's Self-Efficacy Scale, and evaluates a general dimension and three aspects of self-efficacy: initiative, persistence and effort. The aim of this study is to explore the factorial structure, reliability, and criterion validity of the Spanish adaptation of the GSES-12 in general and clinical populations. The sample was composed of 714 volunteers (332 from the clinical population). Results of the principal components analysis yielded a 3-factor structure that was later confirmed through Confirmatory Factor Analysis. Moreover, this study shows good internal consistency and test-retest values, and differences in self-efficacy scores between the clinical and non-clinical groups. The present study demonstrates that the Spanish version of the GSES-12 is a valid and reliable measure, and it adds relevant information to the debate about the dimensional structure of general self-efficacy.


Assuntos
Transtornos Mentais/psicologia , Escalas de Graduação Psiquiátrica , Autoeficácia , Adulto , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Inventário de Personalidade , Psicometria , Qualidade de Vida/psicologia , Reprodutibilidade dos Testes , Espanha , Traduções
4.
Discov Health Syst ; 2(1): 14, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37520514

RESUMO

As a Covid Hub in Emilia Romagna, we have experienced an increasing number of tracheostomized patients, prompting us to develop a standardized decannulation protocol for COVID-19 ARDS patients. Currently, there are no guidelines or protocols for decannulation in this population, and few studies have investigated the early outcomes of tracheostomy in COVID-19 patients, with no detailed analysis of the decannulation process. We recognized the importance of mutual reliance among our team members and the significant achievements we made compared to previous decannulation methods. Through the optimization of the decannulation process, we identified a clear, safe, and repeatable method based on clinical best practice and literature evidence. We decided to implement an existing standardized decannulation protocol, which was originally designed for severe brain-damaged patients, due to the growing number of COVID-19 patients with tracheostomy. This protocol was designed for daily practice and aimed to provide a uniform approach to using devices like fenestrated cannulas, speaking valves, and capping. The results of our implementation include:expanding the applicability of the protocol beyond severe brain-damaged patients to different populations and settings (in this case, patients subjected to a long period of sedation and invasive ventilation)early activation of speech therapy to facilitate weaning from the cannula and recovery of physiological swallowing and phonationearly activation of otolaryngologist evaluation to identify organic problems related to prolonged intubation, tracheostomy, and ventilation and address proper speech therapy treatmentactivation of more fluid and effective management paths for decannulation with a multiprofessional team.

5.
J Appl Microbiol ; 112(3): 443-54, 2012 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-22212185

RESUMO

AIMS: The purpose of this study was to isolate new and potentially better polyhydroxyalkanoate (PHA)-producing bacteria, with a view to obtaining high yields from inexpensive substrates like glycerol, a major by-product of the biodiesel process. METHODS AND RESULTS: Eleven new plant original isolates of the genus Massilia, a poorly studied lineage within the Betaproteobacteria, were isolated and characterized. Two isolates, 2C4 and 4D3c, could not be assigned to a validated Massilia species and probably represent new species. Six isolates were found to produce poly-3-hydroxybutyrate (P3HB) when cultured with glucose or glycerol as carbon source. Isolate 4D6 accumulated up to 50 wt% of cell mass as polyhydroxybutyrate (PHB) when grown on glycerol. CONCLUSIONS: The phyllosphere may be a good source of bacteria unrelated or weakly related to human/animal pathogens for screening for new PHA producers for industrial application. Isolate 4D6 was capable of accumulating particularly high levels of PHB from glycerol. SIGNIFICANCE AND IMPACT OF THE STUDY: With the increase in biodiesel production, which generates increasing amounts of glycerol as a by-product, there is a major interest in exploiting this compound as feedstock for the synthesis of interesting products, like biopolymers, such as PHA. The new Massilia sp. 4D6 isolate described in this study may be a useful candidate as a cell factory for the industrial production of PHA from glycerol.


Assuntos
Glicerol/metabolismo , Hidroxibutiratos/metabolismo , Oxalobacteraceae/isolamento & purificação , Poliésteres/metabolismo , Poli-Hidroxialcanoatos/biossíntese , Glucose/metabolismo , Microbiologia Industrial , Oxalobacteraceae/classificação , Oxalobacteraceae/metabolismo , Plantas/microbiologia , Proibitinas
6.
J Laryngol Otol ; 136(3): 237-242, 2022 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-34895368

RESUMO

OBJECTIVE: This study aimed to assess the olfactory recovery rates and patterns in a cohort of coronavirus disease 2019 positive patients, and to investigate the clinical predictors of poor long-term olfactory restoration. METHODS: An observational retrospective study was conducted on 146 patients between September 2020 and January 2021 at a tertiary referral hospital. Coronavirus disease 2019 positive patients with olfactory dysfunction were sent a modified version of the COVID-19 Anosmia Reporting Tool for Clinicians via e-mail. RESULTS: The difference in median recovery time between complete recovery and incomplete or no recovery was statistically significant. On multivariate analysis, the only significant factor associated with incomplete or no recovery was anosmia duration. CONCLUSION: After a mean time of 5.6 months from severe acute respiratory syndrome coronavirus-2 infection, persistent olfactory disorders were self-reported in 36.7 per cent of patients. Complete recovery was more likely to occur within 15 days. Given the high prevalence of coronavirus disease 2019, a large number of patients are expected to suffer from long-term olfactory morbidity.


Assuntos
Anosmia/virologia , COVID-19/complicações , Recuperação de Função Fisiológica/fisiologia , Adulto , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Estudos Retrospectivos , Fatores de Risco , Autorrelato , Fatores de Tempo
7.
Cytogenet Genome Res ; 128(1-3): 37-45, 2010.
Artigo em Inglês | MEDLINE | ID: mdl-20389039

RESUMO

Abamectin and Ivermectin are 2 closely related members of the Avermectin family of 16-membered macrocyclic lactones derived from the actinomycete Streptomyces avermectinius which exhibit extraordinary anthelmintic activity. They are used worldwide in veterinary and human medicine as well as in agriculture. In the present review we summarized the results published so far for estimating the genotoxicity and cytotoxicity exerted by both compounds in several cellular systems. Although both compounds do not induce in vitro and in vivo gene mutations in either bacterial or mammalian cells, there is no concrete evidence of a clear clastogenic effect exerted both in vitro and in vivo in mammalian cells. However, reports indicating that both anthelmintic agents are able to induce single DNA-strand breaks in vitro and inhibit cell growth either in vitro or in in vivo bioassays, are scarce. Taking into account the similarity of the genotoxicity and cytotoxicity exerted by both antibiotics, and that only Abamectin has been classified so far as a class II toxicity pesticide by the EPA, the necessity of reconsideration for a further hazard evaluation of Ivermectin by an international regulatory agency(ies) is strongly recommended.


Assuntos
Anti-Helmínticos/toxicidade , Ivermectina/análogos & derivados , Ivermectina/toxicidade , Praguicidas/toxicidade , Animais , Anti-Helmínticos/química , Linhagem Celular , Dano ao DNA , Humanos , Ivermectina/química , Praguicidas/química
8.
J Stomatol Oral Maxillofac Surg ; 120(1): 49-54, 2019 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-30196005

RESUMO

We ought to report an unusual case of a 49-year-old patient who underwent delayed reconstruction of the oral cavity defect, with an anterolateral thigh flap, two years after surgical demolition and adjuvant chemo-radiotherapy. At the end of oncologic treatment, he could not eat through oral route and presented evident speech articulation difficulties. After surgical reconstruction, swallowing assessment showed an improvement of swallowing with no gross signs of airways inhalation. His understandability of speech improved as well. Delayed reconstruction by a microvascular free flap with exclusive functional rehabilitation intent is feasible and may have satisfactory functional outcomes.


Assuntos
Retalhos de Tecido Biológico , Procedimentos de Cirurgia Plástica , Neoplasias da Língua , Deglutição , Glossectomia , Humanos , Pessoa de Meia-Idade
9.
J Stomatol Oral Maxillofac Surg ; 120(4): 310-316, 2019 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-30910762

RESUMO

INTRODUCTION: Salivary gland malignancies are rare neoplasms whose management has been evolving over the last two decades. Nevertheless, patient outcomes have not improved accordingly. OBJECTIVE: In the present paper, factors and variables that could influence Overall, Disease-Specific and Disease-Free Survival, and Loco-Regional Control were analyzed. METHODS: Chart data from 74 patients who underwent parotid gland surgery were retrospectively analyzed and stratified for tumor histology, grading, size, pT stage, pN stage, extracapsular spread, involved salivary gland lobe, and age at diagnosis. Major outcomes were estimated at 5 years by Kaplan-Meier curves. RESULTS: Advanced stage, high grade, and lymph nodes involvement greatly impaired patient outcomes. Furthermore, in our cohort, the age at diagnosis ≥ 55 was a cause of poorer disease survival likely due to a different distribution in tumor histotypes between older and younger patients. Despite the two groups were homogeneous for the numerosity of squamous cell carcinomas, older patients were more rarely affected by mucoepidermoid and acinic cell carcinomas, which have generally better prognosis. Finally, patients aged ≥ 55 had a more frequent pathological involvement of the deep lobe of the parotid gland if compared to the younger counterpart. CONCLUSION: The rarity of some salivary gland tumor histotypes requires further high-number series to fully understand the prognostic factors for both patient survival and recurrence development. In our cohort, the age at diagnosis ≥ 55 raises concerns that play crucial roles in disease survival shortening.


Assuntos
Neoplasias Parotídeas , Neoplasias das Glândulas Salivares , Humanos , Recidiva Local de Neoplasia , Glândula Parótida , Estudos Retrospectivos
10.
J Neurosci ; 25(9): 2245-54, 2005 Mar 02.
Artigo em Inglês | MEDLINE | ID: mdl-15745950

RESUMO

We examined the interaction between ephrins and metabotropic glutamate (mGlu) receptors in the developing brain and cultured neurons. EphrinB2 coimmunoprecipitated with mGlu1a receptors, in all of the brain regions examined, and with mGlu5 receptors in the corpus striatum. In striatal slices, activation of ephrinB2 by a clustered form of its target receptor, EphB1, amplified the mGlu receptor-mediated stimulation of polyphosphoinositide (PI) hydrolysis. This effect was abolished in slices treated with mGlu1 or NMDA receptor antagonists but was not affected by pharmacological blockade of mGlu5 receptors. An interaction among ephrinB2, mGlu1 receptor, and NMDA was supported by the following observations: (1) the NR1 subunit of NMDA receptors coimmunoprecipitated with mGlu1a receptors and ephrinB2 in striatal lysates; (2) clustered EphB1 amplified excitatory amino acid-stimulated PI hydrolysis in cultured granule cells grown under conditions that favored the expression of mGlu1a receptors; and (3) clustered EphB1 amplified the enhancing effect of mGlu receptor agonists on NMDA toxicity in cortical cultures, and its action was sensitive to mGlu1 receptor antagonists. Finally, fluorescence resonance energy transfer and coclustering analysis in human embryonic kidney 293 cells excluded a physical interaction between ephrinB2 and mGlu1a (or mGlu5 receptors). A functional interaction between ephrinB and mGlu1 receptors, which likely involves adaptor or scaffolding proteins, might have an important role in the regulation of developmental plasticity.


Assuntos
Encéfalo/citologia , Encéfalo/metabolismo , Neurônios/fisiologia , Receptores da Família Eph/metabolismo , Receptores de Glutamato Metabotrópico/metabolismo , Análise de Variância , Animais , Animais Recém-Nascidos , Astrócitos/efeitos dos fármacos , Astrócitos/metabolismo , Western Blotting/métodos , Encéfalo/crescimento & desenvolvimento , Proteínas de Transporte/metabolismo , Células Cultivadas , Técnicas de Cocultura/métodos , Relação Dose-Resposta a Droga , Interações Medicamentosas , Embrião de Mamíferos , Ativação Enzimática/efeitos dos fármacos , Agonistas de Aminoácidos Excitatórios/farmacologia , Antagonistas de Aminoácidos Excitatórios/farmacologia , Transferência Ressonante de Energia de Fluorescência/métodos , Proteína Glial Fibrilar Ácida/metabolismo , Proteínas de Arcabouço Homer , Humanos , Hidrólise/efeitos dos fármacos , Imunoprecipitação/métodos , Proteínas Luminescentes/metabolismo , Camundongos , Camundongos Endogâmicos C57BL , Camundongos Knockout , Neurônios/efeitos dos fármacos , Fragmentos de Peptídeos/farmacologia , Fosfatos de Fosfatidilinositol/metabolismo , Potássio/farmacologia , Estrutura Terciária de Proteína/fisiologia , Ácido Quisquálico/farmacologia , Proteínas RGS , Ratos , Ratos Sprague-Dawley , Receptor de Glutamato Metabotrópico 5 , Receptores de Dopamina D1/metabolismo , Receptores da Família Eph/química , Receptores de Glutamato Metabotrópico/deficiência , Proteínas Repressoras/metabolismo , Espectrometria de Fluorescência/métodos , Fatores de Tempo , Transfecção/métodos , Trítio/metabolismo
11.
Curr Opin Microbiol ; 2(1): 56-61, 1999 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-10047553

RESUMO

The genus Streptococcus consists of large number of species many of which are pathogenic to humans and animals. Although streptococci have long been considered as extracellular pathogens, they are capable of causing serious invasive infections such as necrotizing fasciitis and meningitis. Streptococcal invasion, therefore, has been a focus of many studies in recent years. Streptococci are efficiently internalized by nonprofessional phagocytes and the current research interest has shifted to determine the role of this invasion in the natural infection process. Moreover, characterization of bacterial and eukaryotic components involved in the uptake process might be useful in developing new strategies for combating streptococcal infections.


Assuntos
Antígenos de Bactérias , Proteínas de Bactérias/metabolismo , Proteínas de Membrana , Proteínas Musculares , Proteínas do Mieloma , Streptococcus/patogenicidade , Adesinas Bacterianas/metabolismo , Animais , Proteínas da Membrana Bacteriana Externa/metabolismo , Desidrogenases de Carboidrato/metabolismo , Proteínas de Transporte , Linhagem Celular , Conectina , Proteínas de Ligação a DNA/metabolismo , Exotoxinas/metabolismo , Proteína GAP-43/metabolismo , Células HeLa , Proteínas de Choque Térmico/metabolismo , Proteínas Hemolisinas/metabolismo , Humanos , Ácido N-Acetilneuramínico/metabolismo , Streptococcus/química , Streptococcus/enzimologia , Virulência
12.
Diabetes ; 33(11): 1085-9, 1984 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-6500188

RESUMO

Auditory brainstem-evoked responses (ABR) were recorded from the scalp of 30 normoacoustic insulin-dependent diabetic subjects, aged between 15 and 41 yr (29 +/- 7 yr). Three different stimulus repetition rates (11, 37, and 87 cps) were used. The results were compared with those obtained from 20 age- and sex-matched, normoacoustic control subjects. In diabetic patients, metabolic control (mean daily plasma glucose, glycosylated hemoglobin) and the presence of retinopathy, nephropathy, and somatic neuropathy were also investigated. The latencies (ms) of ABR waves were significantly impaired in diabetic subjects as compared with normals. Peripheral transmission time (wave I) and central transmission time (waves I-V) were also significantly delayed in diabetic subjects. Moreover, by increasing stimulus repetition rates, a significant increase in waves I-V shift was observed in diabetic patients. ABR impairment was not related to glucose balance, to the duration of diabetes, or to the presence of the diabetic retinopathy, nephropathy, and somatic neuropathy. In conclusion, diabetic neuropathy is characterized not only by somatic and autonomic nerve dysfunctions, but also by the early involvement of the central nervous system (CNS). ABR recording can represent a useful, noninvasive, simple procedure to detect both acoustic nerve and CNS damage.


Assuntos
Tronco Encefálico/fisiopatologia , Diabetes Mellitus Tipo 1/fisiopatologia , Potenciais Evocados Auditivos , Adolescente , Adulto , Feminino , Humanos , Masculino , Tempo de Reação
13.
J Am Coll Cardiol ; 38(2): 364-70, 2001 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-11499725

RESUMO

OBJECTIVES: The purpose of this study was to verify in a long-term follow-up whether frequent monomorphic right ventricle extrasystoles may progress to arrhythmogenic right ventricular dysplasia (ARVD). BACKGROUND: Frequent monomorphic right ventricle extrasystoles are generally considered benign. However, in patients with this pattern, cardiac magnetic resonance (MR) has recently shown anatomical and functional abnormalities of the right ventricle. METHODS: Sixty-one patients who had been classified by noninvasive examinations as having frequent idiopathic right ventricle ectopy were contacted after 15 +/- 2 years (12 to 20) and submitted to clinical examination, electrocardiogram (ECG), Holter monitoring, stress test, signal averaged ECG, echocardiography and, in 11 patients, cardiac MR. The primary end point was to ascertain the presence of cases of sudden death or progression to ARVD. RESULTS: At the end of the follow-up, 55 patients were alive; six died, none of sudden death; eight stated to be well but refused further examinations. The 47 patients examined had normal ECG; in 24 patients (51%), extrasystoles were no longer present at Holter monitoring; late potentials were present in up to 15% of the patients; the right ventricle was normal at echocardiography. In 8 of 11 patients (73%), cardiac MR showed focal fatty replacement and other abnormalities of the right ventricle. CONCLUSIONS: In this long-term follow-up study, no patient died of sudden death nor developed ARVD; two-thirds of the patients were asymptomatic, and, in half of the patients, ectopy had disappeared. Focal fatty replacement in the right ventricle was present in most.


Assuntos
Displasia Arritmogênica Ventricular Direita/diagnóstico , Disfunção Ventricular Direita/diagnóstico , Adolescente , Adulto , Criança , Progressão da Doença , Eletrocardiografia , Feminino , Seguimentos , Humanos , Imageamento por Ressonância Magnética , Masculino , Pessoa de Meia-Idade , Sístole , Pressão Ventricular
14.
J Neuropathol Exp Neurol ; 35(5): 560-8, 1976.
Artigo em Inglês | MEDLINE | ID: mdl-822136

RESUMO

Using specific anesthetic agents, permanent segmental occlusion of the proximal middle cerebral artery (MCA) causes ischemic infarction limited to the putamen and other deep hemispheral structures in primates. Using this model, 25 rhesus monkeys were subjected to acute arterial hypertension before, during and up to 5 days after onset of MCA occlusion in order to reevaluate the possible role of the ischemic process in pathogenesis of cerebral hemorrhage. Norepinephrine infusion induced prompt rapid rise in mean arterial pressure (MAP) and intracranial pressure (ICP) limited to the duration of infusion. This procedure produced acute ischemic lesions which were totally bland but topographically more extensive than untreated controls; in chronic lesions, however, deep nuclear masses showed hemorrhagic infarction. Animals given 5% CO2 air had slowly progressive elevation in ICP and MAP. Acute specimens showed intact, widely-dilan hypercarbia was induced 5 days after MCA occlusion, animals developed intracerebral hematoma involving putamen, external capsule and claustrum, occasionally dissecting through to ipsilateral ventricle. In acute cerebral ischemia, elevated MAP produced only quantiative changes in lesion size. In the vasoproliferative stages of mature infarction, MAP elevation induced by a cerebral vasoconstrictor caused hemorrhagic infarctions while cerebral vasodilation caused intracerebral hematomas.


Assuntos
Hemorragia Cerebral/etiologia , Modelos Animais de Doenças , Hematoma/etiologia , Embolia e Trombose Intracraniana , Embolia e Trombose Intracraniana/complicações , Angiotensina II/farmacologia , Animais , Pressão Sanguínea , Dióxido de Carbono/farmacologia , Circulação Cerebrovascular , Haplorrinos , Embolia e Trombose Intracraniana/patologia , Embolia e Trombose Intracraniana/fisiopatologia , Pressão Intracraniana/efeitos dos fármacos , Macaca mulatta , Modelos Biológicos , Norepinefrina/farmacologia , Respiração , Fatores de Tempo
15.
Arch Neurol ; 37(7): 419-22, 1980 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-7387485

RESUMO

Epileptic aphasia in adults is a rarely described syndrome. Its occurrence in individuals without a clear-cut history of seizures raises diagnostic difficulties with important therapeutic implications. Two such cases are reported in which the diagnosis was confirmed by EEG with a dramatic therapeutic response to anticonvulsant medication. The EEG criteria leading to detection of the epileptic nature of the syndrome are detailed. Maintaining a high index of suspicion in cases with fluctuating symptoms remains crucial for early diagnosis and management, especially in terms of differentiating epileptic aphasia from transient ischemic phenomena.


Assuntos
Afasia/diagnóstico , Estado Epiléptico/diagnóstico , Idoso , Afasia/tratamento farmacológico , Eletroencefalografia , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Fenitoína/uso terapêutico , Estado Epiléptico/tratamento farmacológico
16.
Neurology ; 25(9): 870-4, 1975 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-808760

RESUMO

To evaluate the potential for clinical application, the reputed protective action of barbiturates in cerebral ischemia was tested in a controlled study after segmental middle cerebral artery occlusion in primates. Surviving treated animals promptly recovered consciousness, locomotion, and feeding behavior despite persistent hemiplegia, while control animals ran an indolent course, with slow recovery of poor quality. Cerebral lesions in treated animals were confined to the deep hemispheric structures, while control specimens showed larger deep lesions confluent with extensive areas of cortical infarction. These results are less dramatic than those reported by others, but the protective effect observed in fields of collateral circulation deserves further exploration as an adjunct to medical and surgical management.


Assuntos
Transtornos Cerebrovasculares/tratamento farmacológico , Modelos Animais de Doenças , Doenças dos Macacos/tratamento farmacológico , Pentobarbital/uso terapêutico , Animais , Transtornos Cerebrovasculares/patologia , Transtornos Cerebrovasculares/fisiopatologia , Haplorrinos , Isquemia/prevenção & controle , Macaca mulatta
17.
Neurology ; 57(9): 1603-10, 2001 Nov 13.
Artigo em Inglês | MEDLINE | ID: mdl-11706099

RESUMO

OBJECTIVE: To analyze the frequency, clinical characteristics, and predictors of symptomatic intracerebral hemorrhage (ICH) after intraarterial (IA) thrombolysis with recombinant pro-urokinase (r-proUK) in acute ischemic stroke. METHOD: The authors conducted an exploratory analysis of symptomatic ICH from a randomized, controlled clinical trial of IA thrombolysis with r-proUK for patients with angiographically documented occlusion of the middle cerebral artery within 6 hours from stroke onset. Patients (n = 180) were randomized in a ratio of 2:1 to either 9 mg IA r-proUK over 120 minutes plus IV fixed-dose heparin or IV fixed-dose heparin alone. As opposed to intention to treat, this analysis was based on "treatment received" and includes 110 patients given r-proUK and 64 who did not receive any thrombolytic agent. The remaining six patients received out-of-protocol urokinase and were excluded from analysis. The authors analyzed centrally adjudicated ICH with associated neurologic deterioration (increase in NIH Stroke Scale [NIHSS] score of > or =4 points) within 36 hours of treatment initiation. RESULTS: Symptomatic ICH occurred in 12 of 110 patients (10.9%) treated with r-proUK and in two of 64 (3.1%) receiving heparin alone. ICH symptoms in r-proUK-treated patients occurred at a mean of 10.2 +/- 7.4 hours after the start of treatment. Mortality after symptomatic ICH was 83% (10/12 patients). Only blood glucose was significantly associated with symptomatic ICH in r-proUK-treated patients based on univariate analyses of 24 variables: patients with baseline glucose >200 mg/dL experienced a 36% risk of symptomatic ICH compared with 9% for those with < or =200 mg/dL (p = 0.022; relative risk, 4.2; 95% CI, 1.04 to 11.7). CONCLUSIONS: Symptomatic ICH after IA thrombolysis with r-proUK for acute ischemic stroke occurs early after treatment and has high mortality. The risk of symptomatic ICH may be increased in patients with a blood glucose >200 mg/dL at stroke onset.


Assuntos
Isquemia Encefálica/tratamento farmacológico , Hemorragia Cerebral/induzido quimicamente , Fibrinolíticos/efeitos adversos , Proteínas Recombinantes/efeitos adversos , Acidente Vascular Cerebral/tratamento farmacológico , Terapia Trombolítica/efeitos adversos , Ativador de Plasminogênio Tipo Uroquinase/efeitos adversos , Doença Aguda , Idoso , Anticoagulantes/efeitos adversos , Hemorragia Cerebral/epidemiologia , Quimioterapia Combinada , Feminino , Heparina/efeitos adversos , Humanos , Hiperglicemia/epidemiologia , Masculino , Pessoa de Meia-Idade , Valor Preditivo dos Testes , Prognóstico , Fatores de Risco , Índice de Gravidade de Doença , Terapia Trombolítica/estatística & dados numéricos
18.
Diagn Microbiol Infect Dis ; 12(3 Suppl): 53S-56S, 1989.
Artigo em Inglês | MEDLINE | ID: mdl-2791499

RESUMO

The in vitro activity of lomefloxacin, a new difluorinated quinolone, was compared with that of ofloxacin and norfloxacin against 154 Gram-negative and 200 Gram-positive aerobes freshly isolated from clinical specimens. MIC and MBC values were in the range of those reported in the literature showing lomefloxacin as potent as the other quinolones tested. Time-kill studies indicated that this drug was rapidly bactericidal against Gram-negative and staphylococcal isolates. After 6 hr survivors were reduced to 0.1% with both Enterobacteriaceae and Staphylococcus strains, and to 0.01% with Pseudomonas aeruginosa isolates. A postantibiotic effect of about 2 hr was observed with Gram-negative bacteria and staphylococci exposed for 1 hr to a concentration of lomefloxacin corresponding to 4 x MIC. The results obtained indicate that lomefloxacin compares favorably with the other drugs tested.


Assuntos
Anti-Infecciosos/farmacologia , Bactérias/efeitos dos fármacos , Fluoroquinolonas , Quinolonas , Bactérias/isolamento & purificação , Humanos , Cinética , Testes de Sensibilidade Microbiana , Norfloxacino/farmacologia , Ofloxacino/farmacologia , Fatores de Tempo
19.
Clin Microbiol Infect ; 10(11): 1014-7, 2004 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-15522007

RESUMO

Between 1999 and 2001, 355 hospital laboratories in Italy were asked to complete a questionnaire addressing mycobacterial test methods, 1-year workloads and laboratory safety features. Analysis of the data showed that rapid methods for mycobacterial testing were being used by most larger laboratories; however, sub-optimal methods were still in use in small and medium-size laboratories. In a country such as Italy, which has a low prevalence of tuberculosis cases, implementation of rapid technologies, combined with regionalisation of mycobacterial diagnostic services, seems to be the most reasonable and cost-effective strategy.


Assuntos
Laboratórios Hospitalares , Mycobacterium tuberculosis/isolamento & purificação , Inquéritos e Questionários , Tuberculose Pulmonar/diagnóstico , Técnicas Bacteriológicas , Meios de Cultura , Humanos , Itália , Testes de Sensibilidade Microbiana , Mycobacterium tuberculosis/classificação , Mycobacterium tuberculosis/genética , Fatores de Tempo , Tuberculose Pulmonar/microbiologia , Carga de Trabalho
20.
Arch Pathol Lab Med ; 100(2): 61-4, 1976 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-1062188

RESUMO

Because of renewed public and scientific interest in the concept of brain death and its diagnostic criteria, an opinion survey was undertaken, polling the membership of the American Association of Neuropathologists, regarding the definition, gross and microscopical features, and pathogenesis of the syndrome popularly designated the "respirator brain." Of the 191 respondents who completed the questionnaire, 174 (91%) indicated that the term respirator brain is properly used to describe a specific pathological entity, and 160 (84%) considered the characteristics of respirator brain to be distinct from those of late fixation. Of the 174 respondents who accepted the designation, 148 (85%) regarded a history of respiratory dependency as essential, and a vast majority (95%) agreed that extensive tissue necrosis occurs with little inflammatory cell reaction; other criteria were more controversial. Microscopical changes that suggest a pathogenetic mechanism attracted a number of informative, limiting, or qualifying remarks. Nonetheless, 54% thought that impaired cerebral blood flow contributed to pathogenesis.


Assuntos
Morte Encefálica , Encéfalo/patologia , Ventiladores Mecânicos , Hemorragia Cerebral/patologia , Coma/patologia , Humanos , Necrose , Mudanças Depois da Morte , Inquéritos e Questionários , Síndrome , Terminologia como Assunto , Fatores de Tempo
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