Base de dados : MEDLINE Pesquisa : cérebro [Palavras] Referências encontradas : 423547 [refinar] Mostrando: 1 .. 10   no formato [Detalhado]

página 1 de 42355

ir para página

1 / 423547

MEDLINE

seleciona para imprimir Fotocópia Texto completo

[PMID]: 29505529 [Au] Autor: Yue H; Xu Q; Xie S [Ad] Endereço: Department of Neurosurgery, Jinan Central Hospital Affiliated to Shandong University, Jinan. [Ti] Título: High EMP3 expression might independently predict poor overall survival in glioblastoma and its expression is related to DNA methylation. [So] Source: Medicine (Baltimore);97(1):e9538, 2018 Jan. [Is] ISSN: 1536-5964 [Cp] País de publicação: United States [La] Idioma: eng [Ab] Resumo: In this study, we analyzed the prognostic value of epithelial membrane protein 3 (EMP3) in terms of overall survival (OS) in glioblastoma multiforme (GBM) and the association between its expression and DNA methylation.Bioinformatic analysis was performed by using data from the Cancer Genome Atlas (TCGA) database.EMP3 expression was markedly higher in GBM tissues than in normal brain tissues. High EMP3 expression was associated with significantly worse OS in patients with GBM. Univariate and multivariate analysis showed that EMP3 expression was an independent prognostic factor of poor OS no matter converting its expression into categorical variables (Hazard Ratio [HR] = 1.359, 95%CI: 1.118-1.652, P = .002) or setting it as a continuous variable (HR = 1.178, 95%CI: 1.101-1.260, P < .001). Among different subtypes of GBM, proneural subtype had the lowest EMP3 expression. The lowest EMP3 expression was observed in cluster 5 DNA methylation, which all belong to G-CIMP phenotype. Regression analysis confirmed a moderate negative correlation between EMP3 expression and its DNA methylation (Pearson's r = -0.61).Based on these findings, we infer that high EMP3 expression might be an independent indicator of unfavorable OS in GBM. EMP3 expression might be repressed by DNA methylation. [Mh] Termos MeSH primário: Neoplasias Encefálicas/metabolismo Glioblastoma/metabolismo Glicoproteínas de Membrana/metabolismo [Mh] Termos MeSH secundário: Idoso Neoplasias Encefálicas/mortalidade Estudos de Casos e Controles China/epidemiologia Ilhas de CpG Metilação de DNA Feminino Glioblastoma/mortalidade Seres Humanos Masculino Meia-Idade [Pt] Tipo de publicação: JOURNAL ARTICLE; OBSERVATIONAL STUDY [Nm] Nome de substância: 0 (EMP3 protein, human); 0 (Membrane Glycoproteins) [Em] Mês de entrada: 1803 [Cu] Atualização por classe: 180309 [Lr] Data última revisão: 180309 [Sb] Subgrupo de revista: AIM; IM [Da] Data de entrada para processamento: 180306 [St] Status: MEDLINE [do] DOI: 10.1097/MD.0000000000009538

2 / 423547

MEDLINE

seleciona para imprimir Fotocópia Texto completo

[PMID]: 29505528 [Au] Autor: Bai XF; Gao YK [Ad] Endereço: Department of Neurosurgery, The People's Hospital of Yan'an, Yan'an, Shaanxi, China. [Ti] Título: Recombinant human erythropoietin for treating severe traumatic brain injury. [So] Source: Medicine (Baltimore);97(1):e9532, 2018 Jan. [Is] ISSN: 1536-5964 [Cp] País de publicação: United States [La] Idioma: eng [Ab] Resumo: BACKGROUND: This study aimed to explore the efficacy and safety of recombinant human erythropoietin (RHE) for the treatment of severe traumatic brain injury (STBI). METHODS: One hundred and twenty eligible patients with STBI were randomly divided into an intervention group or a control group equally. Patients in the intervention group received RHE. The participants in the control group received 0.9% saline. The outcome measurements included the Glasgow Outcome Scale (GOS) scores, mortality, and any adverse events. RESULTS: At the end of 10-week follow-up after treatment, RHE neither showed greater efficacy in GOS scores (1-2, P = .43; 3-4, P = .25; 5-6, P = .58; 7-8, P = .23), nor the lower mortality in the intervention group than those in the control group (P = .47). In addition, both groups had similar safety profile. CONCLUSION: This study found that RHE did not improve the neurological outcomes in patients with STBI. [Mh] Termos MeSH primário: Lesões Encefálicas Traumáticas/tratamento farmacológico Eritropoetina/uso terapêutico [Mh] Termos MeSH secundário: Adulto Feminino Seres Humanos Masculino Meia-Idade Proteínas Recombinantes/uso terapêutico [Pt] Tipo de publicação: JOURNAL ARTICLE; RANDOMIZED CONTROLLED TRIAL [Nm] Nome de substância: 0 (Recombinant Proteins); 11096-26-7 (Erythropoietin) [Em] Mês de entrada: 1803 [Cu] Atualização por classe: 180309 [Lr] Data última revisão: 180309 [Sb] Subgrupo de revista: AIM; IM [Da] Data de entrada para processamento: 180306 [St] Status: MEDLINE [do] DOI: 10.1097/MD.0000000000009532

3 / 423547

MEDLINE

seleciona para imprimir Fotocópia Texto completo

[PMID]: 29505526 [Au] Autor: Li X; Zhao Z; Liu X; Ma G; Zhu MJ [Ad] Endereço: Department of Critical Care Medicine. [Ti] Título: Encephalopathy associated with propofol infusion syndrome: A case report. [So] Source: Medicine (Baltimore);97(1):e9521, 2018 Jan. [Is] ISSN: 1536-5964 [Cp] País de publicação: United States [La] Idioma: eng [Ab] Resumo: INTRODUCTION: Propofol infusion syndrome (PRIS) is a rare but potentially fatal complication of propofol infusion. It is clinically characterized by metabolic acidosis, refractory bradycardia, rhabdomyolysis, renal failure, hyperlipidemia, and hepatomegaly. Brain lesion was only reported once in a pediatric patient. We present the 1st adult case with colon polyp and cancer who was diagnosed with PRIS. Her brain magnetic resonance imaging (MRI) and computed tomography (CT) scans reveal prominent bilateral brain lesions, matching with the proposed pathophysiologic mechanism of the syndrome. The patient received prompt acidosis correction and cardiorespiratory support. At last, she died from refractory circulatory failure. CONCLUSION: It may be necessary to order a prompt neuroimaging examination in patients suspected with PRIS to judge whether brain lesions exist or not. [Mh] Termos MeSH primário: Encefalopatias/etiologia Síndrome da Infusão de Propofol/complicações [Mh] Termos MeSH secundário: Adulto Encefalopatias/diagnóstico por imagem Imagem de Difusão por Ressonância Magnética Evolução Fatal Feminino Seres Humanos Neuroimagem [Pt] Tipo de publicação: CASE REPORTS; JOURNAL ARTICLE [Em] Mês de entrada: 1803 [Cu] Atualização por classe: 180309 [Lr] Data última revisão: 180309 [Sb] Subgrupo de revista: AIM; IM [Da] Data de entrada para processamento: 180306 [St] Status: MEDLINE [do] DOI: 10.1097/MD.0000000000009521

4 / 423547

MEDLINE

seleciona para imprimir Fotocópia Texto completo

[PMID]: 29501492 [Au] Autor: Suyama Y; Handa O; Naito Y; Takayama S; Mukai R; Ushiroda C; Majima A; Yasuda-Onozawa Y; Higashimura Y; Fukui A; Dohi O; Okayama T; Yoshida N; Katada K; Kamada K; Uchiyama K; Ishikawa T; Takagi T; Konishi H; Itoh Y [Ad] Endereço: Molecular Gastroenterology and Hepatology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan. [Ti] Título: Mucus reduction promotes acetyl salicylic acid-induced small intestinal mucosal injury in rats. [So] Source: Biochem Biophys Res Commun;, 2018 Mar 06. [Is] ISSN: 1090-2104 [Cp] País de publicação: United States [La] Idioma: eng [Ab] Resumo: BACKGROUND: Acetyl salicylic acid (ASA) is a useful drug for the secondary prevention of cerebro-cardiovascular diseases, but it has adverse effects on the small intestinal mucosa. The pathogenesis and prophylaxis of ASA-induced small intestinal injury remain unclear. In this study, we focused on the intestinal mucus, as the gastrointestinal tract is covered by mucus, which exhibits protective effects against various gastrointestinal diseases. MATERIALS AND METHODS: ASA was injected into the duodenum of rats, and small intestinal mucosal injury was evaluated using Evans blue dye. To investigate the importance of mucus, Polysorbate 80 (P80), an emulsifier, was used before ASA injection. In addition, rebamipide, a mucus secretion inducer in the small intestine, was used to suppress mucus reduction in the small intestine of P80-administered rats. RESULTS: The addition of P80 reduced the mucus and exacerbated the ASA-induced small intestinal mucosal injury. Rebamipide significantly suppressed P80-reduced small intestinal mucus and P80-increased intestinal mucosal lesions in ASA-injected rats, demonstrating that mucus is important for the protection against ASA-induced small intestinal mucosal injury. These results provide new insight into the mechanism of ASA-induced small intestinal mucosal injury. CONCLUSION: Mucus secretion-increasing therapy might be useful in preventing ASA-induced small intestinal mucosal injury. [Pt] Tipo de publicação: JOURNAL ARTICLE [Em] Mês de entrada: 1803 [Cu] Atualização por classe: 180310 [Lr] Data última revisão: 180310 [St] Status: Publisher

5 / 423547

MEDLINE

seleciona para imprimir Fotocópia

[PMID]: 29446584 [Au] Autor: Sosedova LM; Novikov MA; Titov EA; Rukavishnikov VS [Ti] Título: [Induction of apoptosis in neurons of white rats under exposure of nanobiocomposite based on ag (0) nanoparticles and arabinogalactan]. [So] Source: Gig Sanit;95(12):1210-13, 2016. [Is] ISSN: 0016-9900 [Cp] País de publicação: Russia (Federation) [La] Idioma: rus [Ab] Resumo: There are presented results of the immunohistochemical study of neural tissue of outbred albino rats exposed for 9 days to the influence of the silver nanobiocomposite consisted of silver nanoparticles encapsulated into a matrix of a natural polymer - arabinogalactan. The research of albino rats was performed in 2 stages: half of the rats in each groups were decapitated immediately after the exposure (early period) and the rest animals - 6 months after the end of exposure (remote period). The impact of the studied substance was proved to cause functional changes in cells of the nervous tissue. After the subacute administration of the nanobiocomposite - argentum-arabinogalactan (nano-Ag-AG) in cells of the nervous tissue of the brain of albino rats the expression of apoptotic and anti-apoptotic protein (caspase-3 and bcl-2) was established to be changed. The number of normal neurons producing protein caspase-3 sharply increases. Herewith the number of immunonegative neurons fairly declines. Along with this there is noted the high level of bcl-2 content, one function ofwhich is the preclusion ofapoptosis. In preparations there is revealed a significant gain in the number of bcl-2 expressing neurons, however, the protective effect of the protein is not fully realized, that leads to the significantly increase in the content of damaged hyperchromatic cells. The evaluation of results of the immunohistochemical study of the nervous tissue of albino rats according to data concerning the proteins caspase-3 and bcl-2 expression permits to make a conclusion about the capability of nanoargentum encapsulated into polymer matrix by passing the blood-brain barrier to induce the triggering apoptosis cascade in neurons of the cerebral cortex. [Mh] Termos MeSH primário: Encéfalo Galactanos/farmacologia Larix Nanopartículas Metálicas/efeitos adversos Prata [Mh] Termos MeSH secundário: Animais Apoptose/efeitos dos fármacos Biopolímeros/farmacologia Barreira Hematoencefálica/metabolismo Encéfalo/efeitos dos fármacos Encéfalo/patologia Encéfalo/fisiopatologia Caspase 3/metabolismo Imuno-Histoquímica Modelos Animais Preparações de Plantas/farmacologia Proteínas Proto-Oncogênicas c-bcl-2/metabolismo Ratos Prata/efeitos adversos Prata/farmacologia [Pt] Tipo de publicação: JOURNAL ARTICLE [Nm] Nome de substância: 0 (Biopolymers); 0 (Galactans); 0 (Plant Preparations); 0 (Proto-Oncogene Proteins c-bcl-2); 3M4G523W1G (Silver); EC 3.4.22.- (Caspase 3); SL4SX1O487 (arabinogalactan) [Em] Mês de entrada: 1803 [Cu] Atualização por classe: 180309 [Lr] Data última revisão: 180309 [Sb] Subgrupo de revista: IM [Da] Data de entrada para processamento: 180216 [St] Status: MEDLINE

6 / 423547

MEDLINE

seleciona para imprimir Fotocópia Texto completo

[PMID]: 29444091 [Au] Autor: Ma C; Nguyen HPT; Luwor RB; Stylli SS; Gogos A; Paradiso L; Kaye AH; Morokoff AP [Ad] Endereço: Department of Surgery, The University of Melbourne, The Royal Melbourne Hospital, Parkville, Victoria, Australia. [Ti] Título: A comprehensive meta-analysis of circulation miRNAs in glioma as potential diagnostic biomarker. [So] Source: PLoS One;13(2):e0189452, 2018. [Is] ISSN: 1932-6203 [Cp] País de publicação: United States [La] Idioma: eng [Ab] Resumo: Glioma is the most common malignant intracranial tumour. Recently, several publications have suggested that miRNAs can be used as potential diagnostic biomarkers of glioma. Here we performed a meta-analysis to identify the diagnostic accuracy of differentially expressed circulating miRNAs in gliomas. Using PubMed, Medline and Cochrane databases, we searched for studies which evaluated a single or panel of miRNAs from circulating blood as potential biomarkers of glioma. Sixteen publications involving 23 studies of miRNAs from serum or plasma met our criteria and were included in this meta-analysis. The pooled diagnostic parameters were calculated by random effect models and overall diagnostic performance of altered miRNAs was illustrated by the summary receiver operator characteristic (SROC) curves. The pooled sensitivity, specificity, positive likelihood ratio (PLR) and negative likelihood ratio (NLR) from each study were calculated. The pooled PLR, NLR and Diagnostic Odds Ratio were 6.39 (95% CI, 4.61-8.87), 0.15 (95% CI, 0.11-0.21) and 41.91 (95% CI, 23.15-75.88), respectively. The pooled sensitivity, specificity and area under the curve (AUC) were 0.87 (95% CI, 0.82-0.91), 0.86 (95% CI, 0.82-0.90) and 0.93 (95% CI, 0.91-0.95), respectively. This meta-analysis demonstrated that circulating miRNAs are capable of distinguishing glioma from healthy controls. Circulating miRNAs are promising diagnostic biomarkers for glioma and can potentially be used as a non-invasive early detection. [Mh] Termos MeSH primário: Biomarcadores/sangue Neoplasias Encefálicas/sangue Glioma/sangue MicroRNAs/sangue [Mh] Termos MeSH secundário: Seres Humanos [Pt] Tipo de publicação: JOURNAL ARTICLE; META-ANALYSIS; RESEARCH SUPPORT, NON-U.S. GOV'T [Nm] Nome de substância: 0 (Biomarkers); 0 (MicroRNAs) [Em] Mês de entrada: 1803 [Cu] Atualização por classe: 180309 [Lr] Data última revisão: 180309 [Sb] Subgrupo de revista: IM [Da] Data de entrada para processamento: 180215 [St] Status: MEDLINE [do] DOI: 10.1371/journal.pone.0189452

7 / 423547

MEDLINE

seleciona para imprimir Fotocópia Texto completo

[PMID]: 29444081 [Au] Autor: Arakaki X; Shoga M; Li L; Zouridakis G; Tran T; Fonteh AN; Dawlaty J; Goldweber R; Pogoda JM; Harrington MG [Ad] Endereço: Neurosciences, Huntington Medical Research Institutes, Pasadena, California, United States of America. [Ti] Título: Alpha desynchronization/synchronization during working memory testing is compromised in acute mild traumatic brain injury (mTBI). [So] Source: PLoS One;13(2):e0188101, 2018. [Is] ISSN: 1932-6203 [Cp] País de publicação: United States [La] Idioma: eng [Ab] Resumo: Diagnosing and monitoring recovery of patients with mild traumatic brain injury (mTBI) is challenging because of the lack of objective, quantitative measures. Diagnosis is based on description of injuries often not witnessed, subtle neurocognitive symptoms, and neuropsychological testing. Since working memory (WM) is at the center of cognitive functions impaired in mTBI, this study was designed to define objective quantitative electroencephalographic (qEEG) measures of WM processing that may correlate with cognitive changes associated with acute mTBI. First-time mTBI patients and mild peripheral (limb) trauma controls without head injury were recruited from the emergency department. WM was assessed by a continuous performance task (N-back). EEG recordings were obtained during N-back testing on three occasions: within five days, two weeks, and one month after injury. Compared with controls, mTBI patients showed abnormal induced and evoked alpha activity including event-related desynchronization (ERD) and synchronization (ERS). For induced alpha power, TBI patients had excessive frontal ERD on their first and third visit. For evoked alpha, mTBI patients had lower parietal ERD/ERS at the second and third visits. These exploratory qEEG findings offer new and non-invasive candidate measures to characterize the evolution of injury over the first month, with potential to provide much-needed objective measures of brain dysfunction to diagnose and monitor the consequences of mTBI. [Mh] Termos MeSH primário: Lesões Encefálicas Traumáticas/fisiopatologia Memória de Curto Prazo [Mh] Termos MeSH secundário: Doença Aguda Adulto Eletroencefalografia Feminino Seres Humanos Masculino Índice de Gravidade de Doença Adulto Jovem [Pt] Tipo de publicação: JOURNAL ARTICLE; RESEARCH SUPPORT, NON-U.S. GOV'T [Em] Mês de entrada: 1803 [Cu] Atualização por classe: 180309 [Lr] Data última revisão: 180309 [Sb] Subgrupo de revista: IM [Da] Data de entrada para processamento: 180215 [St] Status: MEDLINE [do] DOI: 10.1371/journal.pone.0188101

8 / 423547

MEDLINE

seleciona para imprimir Fotocópia

[PMID]: 29431328 [Au] Autor: Vokina VA; Sosedova LM; Filippova TM [Ti] Título: [The study of neurotoxicity of toluene in conditions of experimental modeling of prenatal hypoxic damage of the brain]. [So] Source: Gig Sanit;95(9):895-9, 2016. [Is] ISSN: 0016-9900 [Cp] País de publicação: Russia (Federation) [La] Idioma: rus [Ab] Resumo: There was executed the study of the impact of toluene on indices of behavior, cognitive capabilities and bioelectric activity of the brain in white rats with normal course of the period of antenatal development and against background ofprenatal hemic hypoxia Prenatal hypoxia was modeled in pregnant female rats by subcutaneous injection of sodium nitrite in a dose of 50 mg/kg at from the 10 to the 19 day of gestation. At the age of 3 months the males from the obtained offspring were exposed to inhalation exposure of toluene (150 ppm, 4 weeks). After exposure to toluene in animals there was evaluated the pattern of individual behavior, indices of cognitive capabilities and also bioelectric activity of the brain. There were revealed such common consistencies of transformations in the behavior of exposed to toluene animals with normal and impaired embryogenesis as disturbed motor activity, reduction of exploratory behavior and cognitive functions, impaired bioelectric potentials of the brain. Features of changes in behavior and EEG indices in toluene-exposed rats with prenatal hypoxia are characterized by inhibition of motor activity, increased anxiety and latency of main peaks of auditory and visual evoked potentials. Prenatal hypoxic damage of the central nervous system was shown to be an aggravating factor in toluene intoxication in rats. [Mh] Termos MeSH primário: Comportamento Animal Encéfalo Cognição Hipóxia-Isquemia Encefálica Complicações na Gravidez/fisiopatologia Tolueno/farmacologia [Mh] Termos MeSH secundário: Animais Comportamento Animal/efeitos dos fármacos Comportamento Animal/fisiologia Encéfalo/efeitos dos fármacos Encéfalo/fisiopatologia Mapeamento Encefálico/métodos Cognição/efeitos dos fármacos Cognição/fisiologia Modelos Animais de Doenças Feminino Hipóxia-Isquemia Encefálica/complicações Hipóxia-Isquemia Encefálica/fisiopatologia Neurotoxinas/farmacologia Gravidez Ratos [Pt] Tipo de publicação: JOURNAL ARTICLE [Nm] Nome de substância: 0 (Neurotoxins); 3FPU23BG52 (Toluene) [Em] Mês de entrada: 1803 [Cu] Atualização por classe: 180309 [Lr] Data última revisão: 180309 [Sb] Subgrupo de revista: IM [Da] Data de entrada para processamento: 180213 [St] Status: MEDLINE

9 / 423547

MEDLINE

seleciona para imprimir Fotocópia Texto completo

[PMID]: 29381725 [Au] Autor: Henssen DJHA; Kurt E; van Cappellen van Walsum AM; Arnts I; Doorduin J; Kozicz T; van Dongen R; Bartels RHMA [Ad] Endereço: Department of Anatomy, Donders Institute for Brain, Cognition & Behaviour, Radboud University Medical Center, Nijmegen, the Netherlands. [Ti] Título: Long-term effect of motor cortex stimulation in patients suffering from chronic neuropathic pain: An observational study. [So] Source: PLoS One;13(1):e0191774, 2018. [Is] ISSN: 1932-6203 [Cp] País de publicação: United States [La] Idioma: eng [Ab] Resumo: BACKGROUND: Motor cortex stimulation (MCS) was introduced as a last-resort treatment for chronic neuropathic pain. Over the years, MCS has been used for the treatment of various pain syndromes but long-term follow-up is unknown. METHODS: This paper reports the results of MCS from 2005 until 2012 with a 3-year follow-up. Patients who suffered from chronic neuropathic pain treated with MCS were studied. The analgesic effect was determined as successful by decrease in pain-intensity on the visual analog scale (VAS) of at least 40%. The modifications in drug regimens were monitored with use of the medication quantification scale (MQS). Stimulation parameters and complications were also noted. Interference of pain with quality of life (QoL), the Quality of Life Index (QLI), was determined with use of a specific subset of questions from the MPQ-DLV score. RESULTS: Eighteen patients were included. Mean pre-operative VAS changed from 89.4 ± 11.2 to 53.1 ± 25.0 after three years of follow-up (P < 0.0001). A successful outcome was achieved in seven responders (38.9%). All patients in the responder group suffered from pain caused by a central lesion. With regard to all the patients with central pain lesions (n = 10) and peripheral lesions (n = 8), a significant difference in response to MCS was noticed (P = 0.002). MQS scores and QLI-scores diminished during the follow-up period (P = 0.210 and P = 0.007, respectively). CONCLUSION: MCS seems a promising therapeutic option for patients with refractory pain syndromes of central origin. [Mh] Termos MeSH primário: Dor Crônica/fisiopatologia Estimulação Encefálica Profunda/métodos Córtex Motor/fisiopatologia Neuralgia/fisiopatologia [Mh] Termos MeSH secundário: Adulto Idoso Analgésicos/administração & dosagem Analgésicos/uso terapêutico Dor Crônica/diagnóstico por imagem Dor Crônica/tratamento farmacológico Feminino Seres Humanos Imagem por Ressonância Magnética Masculino Meia-Idade Córtex Motor/diagnóstico por imagem Neuralgia/diagnóstico por imagem Neuralgia/tratamento farmacológico Medição da Dor Qualidade de Vida Resultado do Tratamento [Pt] Tipo de publicação: JOURNAL ARTICLE; OBSERVATIONAL STUDY [Nm] Nome de substância: 0 (Analgesics) [Em] Mês de entrada: 1803 [Cu] Atualização por classe: 180309 [Lr] Data última revisão: 180309 [Sb] Subgrupo de revista: IM [Da] Data de entrada para processamento: 180131 [St] Status: MEDLINE [do] DOI: 10.1371/journal.pone.0191774

10 / 423547

MEDLINE

seleciona para imprimir Fotocópia Texto completo

[PMID]: 29377946 [Au] Autor: Sánchez van Kammen M; Moomaw CJ; van der Schaaf IC; Brown RD; Woo D; Broderick JP; Mackey JS; Rinkel GJE; Huston J; Ruigrok YM [Ad] Endereço: Department of Neurology and Neurosurgery, University Medical Centre Utrecht, Utrecht, the Netherlands. [Ti] Título: Heritability of circle of Willis variations in families with intracranial aneurysms. [So] Source: PLoS One;13(1):e0191974, 2018. [Is] ISSN: 1932-6203 [Cp] País de publicação: United States [La] Idioma: eng [Ab] Resumo: BACKGROUND: Intracranial aneurysms more often occur in the same arterial territory within families. Several aneurysm locations are associated with specific circle of Willis variations. We investigated whether the same circle of Willis variations are more likely to occur in first-degree relatives than in unrelated individuals. METHODS: We assessed four circle of Willis variations (classical, A1-asymmetry, incomplete posterior communicating artery and fetal circulation) in two independent groups of families with familial aneurysms and ≥2 first-degree relatives with circle of Willis imaging on MRA/CTA. In each (index) family we determined the proportion of first-degree relatives with the same circle of Willis variation as the proband and compared it to the proportion of first-degree relatives of a randomly selected unrelated (comparison) family who had the same circle of Willis variation as the index family's proband. Concordance in index families and comparison families was compared with a conditional logistic events/trials model. The analysis was simulated 1001 times; we report the median concordances, odds ratios (ORs), and 95% confidence intervals (95%CI). The groups were analysed separately and together by meta-analysis. RESULTS: We found a higher overall concordance in circle of Willis configuration in index families than in comparison families (meta-analysis, 244 families: OR 2.2, 95%CI 1.6-3.0) mostly attributable to a higher concordance in incomplete posterior communicating artery (meta-analysis: OR 2.8, 95%CI 1.8-4.3). No association was found for the other three circle of Willis variations. CONCLUSIONS: In two independent groups of families with familial aneurysms, the incomplete PcomA variation occurred more often within than between families suggesting heritability of this circle of Willis variation. Further studies should investigate genetic variants associated with circle of Willis formation. [Mh] Termos MeSH primário: Círculo Arterial do Cérebro/patologia Aneurisma Intracraniano/genética [Mh] Termos MeSH secundário: Feminino Seres Humanos Aneurisma Intracraniano/patologia Masculino [Pt] Tipo de publicação: JOURNAL ARTICLE; META-ANALYSIS; RESEARCH SUPPORT, NON-U.S. GOV'T [Em] Mês de entrada: 1803 [Cu] Atualização por classe: 180309 [Lr] Data última revisão: 180309 [Sb] Subgrupo de revista: IM [Da] Data de entrada para processamento: 180130 [St] Status: MEDLINE [do] DOI: 10.1371/journal.pone.0191974

---

página 1 de 42355

ir para página

Refinar a pesquisa

Base de dados : MEDLINE

Formulário avançado

		Pesquisar	no campo
1			PalavrasDescritor de assuntoDescritor de assunto primárioLimitesAutorPalavras do títuloPalavras do resumoIdiomaPaís de publicaçãoNome de substânciaNome de pessoa como assuntoRevistaAssunto de RevistaISSNTipo de publicaçãoIdentificador únicoMês de entradaAno de publicaçãoTexto completoAtualização por classeCategoria DeCSCategoria DeCS explodidaCategoria CID-10SubSetsPais de AfiliaçãoAfiliaçãoAfiliação 2
2	and or and not		PalavrasDescritor de assuntoDescritor de assunto primárioLimitesAutorPalavras do títuloPalavras do resumoIdiomaPaís de publicaçãoNome de substânciaNome de pessoa como assuntoRevistaAssunto de RevistaISSNTipo de publicaçãoIdentificador únicoMês de entradaAno de publicaçãoTexto completoAtualização por classeCategoria DeCSCategoria DeCS explodidaCategoria CID-10SubSetsPais de AfiliaçãoAfiliaçãoAfiliação 2
3	and or and not		PalavrasDescritor de assuntoDescritor de assunto primárioLimitesAutorPalavras do títuloPalavras do resumoIdiomaPaís de publicaçãoNome de substânciaNome de pessoa como assuntoRevistaAssunto de RevistaISSNTipo de publicaçãoIdentificador únicoMês de entradaAno de publicaçãoTexto completoAtualização por classeCategoria DeCSCategoria DeCS explodidaCategoria CID-10SubSetsPais de AfiliaçãoAfiliaçãoAfiliação 2

Search engine: iAH v2.6 powered by WWWISIS

BIREME/OPAS/OMS - Centro Latino-Americano e do Caribe de Informação em Ciências da Saúde