EDILAINE TAMPELLINI SANTOS
Projetos de Pesquisa
Unidades Organizacionais
LIM/22 - Laboratório de Patolologia Cardiovascular, Hospital das Clínicas, Faculdade de Medicina
2 resultados
Resultados de Busca
Agora exibindo 1 - 2 de 2
- Very low levels of education and cognitive reserve A clinicopathologic study(2013) FARFEL, Jose Marcelo; NITRINI, Ricardo; SUEMOTO, Claudia Kimie; GRINBERG, Lea Tenenholz; FERRETTI, Renata Eloah Lucena; LEITE, Renata Elaine Paraizo; TAMPELLINI, Edilaine; LIMA, Luzia; FARIAS, Daniela Souza; NEVES, Ricardo Caires; RODRIGUEZ, Roberta Diehl; MENEZES, Paulo Rossi; FREGNI, Felipe; BENNETT, David A.; PASQUALUCCI, Carlos Augusto; JACOB FILHO, WilsonObjective: We conducted a clinicopathologic study in a large population with very low levels of education to determine whether very few years of education could contribute to cognitive reserve and modify the relation of neuropathologic indices to dementia. Methods: In this cross-sectional study, we included 675 individuals 50 years of age or older from the Brazilian Aging Brain Study Group. Cognitive abilities were evaluated through a structured interview with an informant at the time of autopsy, including the Clinical Dementia Rating (CDR) scale. Neuropathologic examinations were performed using immunohistochemistry and following internationally accepted criteria. Multivariate linear regression models were conducted to determine whether the association between cognitive abilities (measured by CDR sum of boxes) and years of education was independent of sociodemographic variables and neuropathologic indices, including neuritic plaques, neurofibrillary tangles, lacunar infarctions, small-vessel disease, and Lewy bodies. In addition, interaction models were used to examine whether education modified the relation between neuropathologic indices and cognition. Results: Mean education was 3.9 +/- 3.5 years. Formal education was associated with a lower CDR sum of boxes (beta = -0.197; 95% confidence interval -0.343, -0.052; p = 0.008), after adjustment for sociodemographic variables and neuropathologic indices. Furthermore, education modified the relationship of lacunar infarcts with cognitive abilities (p = 0.04). Conclusions: Even a few years of formal education contributes to cognitive reserve.
- Complex Network-Driven View of Genomic Mechanisms Underlying Parkinson's Disease: Analyses in Dorsal Motor Vagal Nucleus, Locus Coeruleus, and Substantia Nigra(2014) CORRADINI, Beatriz Raposo; IAMASHITA, Priscila; TAMPELLINI, Edilaine; FARFEL, Jose Marcelo; GRINBERG, Lea Tenenholz; MOREIRA-FILHO, Carlos AlbertoParkinson's disease (PD)-classically characterized by severe loss of dopaminergic neurons in the substantia nigra pars compactahas a caudal-rostral progression, beginning in the dorsal motor vagal nucleus and, in a less extent, in the olfactory system, progressing to the midbrain and eventually to the basal forebrain and the neocortex. About 90% of the cases are idiopathic. To study the molecular mechanisms involved in idiopathic PD we conducted a comparative study of transcriptional interaction networks in the dorsal motor vagal nucleus (VA), locus coeruleus (LC), and substantia nigra (SN) of idiopathic PD in Braak stages 4-5 (PD) and disease-free controls (CT) using postmortem samples. Gene coexpression networks (GCNs) for each brain region (patients and controls) were obtained to identify highly connected relevant genes (hubs) and densely interconnected gene sets (modules). GCN analyses showed differences in topology and module composition between CT and PD networks for each anatomic region. In CT networks, VA, LC, and SN hub modules are predominantly associated with neuroprotection and homeostasis in the ageing brain, whereas in the patient's group, for the three brain regions, hub modules are mostly related to stress response and neuron survival/degeneration mechanisms.