RENATA ELAINE PARAIZO LEITE
Projetos de Pesquisa
Unidades Organizacionais
LIM/22 - Laboratório de Patolologia Cardiovascular, Hospital das Clínicas, Faculdade de Medicina
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conferenceObject Brain transcriptome analysis of Japanese population living in Brazil(2019) MARIE, Suely Kazue Nagahashi; LERARIO, Antonio Marcondes; SHINJO, Sueli Mieko Oba; NASCIMENTO, Camila; LEITE, Renata; SUEMOTO, Claudia; PASQUALUCCI, Carlos Augusto; MURAYAMA, Shigeo- Neuropathological lesions in the very old: results from a large Brazilian autopsy study(2019) SUEMOTO, Claudia K.; LEITE, Renata E. P.; FERRETTI-REBUSTINI, Renata E. L.; RODRIGUEZ, Roberta D.; NITRINI, Ricardo; PASQUALUCCI, Carlos A.; JACOB-FILHO, Wilson; GRINBERG, Lea T.Objective To compare neuropathological correlates of cognitive impairment between very old and younger individuals from a Brazilian clinicopathological study. Methods We assessed the frequency of neuropathological lesions and their association with cognitive impairment (Clinical Dementia Rating scale >= 0.5) in the 80 or over age group compared to younger participants, using logistic regression models adjusted for sex, race and education. Results Except for infarcts and siderocalcinosis, all neuropathological lesions were more common in the 80 or over age group (n = 412) compared to 50-79 year olds (n = 677). Very old participants had more than twice the likelihood of having >= 2 neuropathological diagnoses than younger participants (OR = 2.66, 95% CI = 2.03-3.50). Neurofibrillary tangles, infarcts and hyaline arteriolosclerosis were associated with cognitive impairment in the two age groups. Siderocalcinosis was associated with cognitive impairment in the younger participants only, while Lewy body disease was associated with cognitive impairment in the very old only. In addition, we found that the association of infarcts and multiple pathologies with cognitive impairment was attenuated in very old adults (Infarcts: P for interaction = 0.04; and multiple pathologies: P = 0.05). However, the predictive value for the aggregate model with all neuropathological lesions showed similar discrimination in both age groups [Area under Receiver Operating Characteristic curve (AUROC) = 0.778 in younger participants and AUROC = 0.765 in the very old]. Conclusion and relevance Despite a higher frequency of neuropathological findings in the very old group, as found in studies with high-income populations, we found attenuation of the effect of infarcts rather than neurofibrillary tangles and plaques as reported previously.
- Higher Prevalence of TDP-43 Proteinopathy in Cognitively Normal Asians: A Clinicopathological Study on a Multiethnic Sample(2016) NASCIMENTO, Camila; SUEMOTO, Claudia K.; RODRIGUEZ, Roberta D.; ALHO, Ana Tereza Di Lorenzo; LEITE, Renata P.; FARFEL, Jose Marcelo; PASQUALUCCI, Carlos Augusto Goncalves; JACOB-FILHO, Wilson; GRINBERG, Lea T.Transactive response DNA binding protein 43 (TDP-43) proteinopathy is the major hallmark of frontotemporal lobar degeneration and amyotrophic lateral sclerosis. It is also present in a subset of Alzheimer's disease cases. Recently, few reports showed TDP-43 changes in cognitively normal elderly. In Caucasians, TDP-43 proteinopathy independently correlate with cognitive decline. However, it is challenging to establish direct links between cognitive and/or neuropsychiatric symptoms and protein inclusions in neurodegenerative diseases because individual cognitive reserves modify the threshold for clinical disease expression. Cognitive reserve is influenced by demographic, environmental and genetic factors. We investigated the relationships between demographic, clinical and neuropathological variables and TDP-43 proteinopathy in a large multiethnic sample of cognitively normal elderly. TDP-43 proteinopathy was identified in 10.5%, independently associated with older age (P=0.03) and Asian ethnicity (P=0.002). Asians showed a higher prevalence of TDP-43 proteinopathy than Caucasians, even after adjustment for sex, age, Braak stage and schooling (odds ratio=3.50, confidence interval 1.41-8.69, P=0.007). These findings suggested that Asian older adults may be protected from the clinical manifestation of brain TDP-43 proteinopathy. Future studies are needed to identify possible race-related protective factors against clinical expression of TDP-43 proteinopathies.
- Response letter: neuropathological lesions in the very old(2020) SUEMOTO, Claudia K.; LEITE, Renata E. P.; FERRETTI-REBUSTINI, Renata E. L.; RODRIGUEZ, Roberta D.; NITRINI, Ricardo; PASQUALUCCI, Carlos A.; JACOB-FILHO, Wilson; GRINBERG, Lea T.