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The Duration of Stress Determines Sex Specificities in the Vulnerability to Dep...

Gaspar, Rita; Soares-Cunha, Carina; Domingues, Ana Verónica; Coimbra, Bárbara; Baptista, Filipa; Pinto, Luísa; Ambrósio, António; Rodrigues, Ana-João

Stress exposure has been shown to induce a variety of molecular and functional alterations associated with anxiety and depression. Some studies suggest that microglia, the immune cells of the brain, play a significant role in determining neuronal and behavioral responses to chronic stress and also contribute to the development of stress-related psychopathologies. However, little is known about the impact of the...


Resilience to stress and sex-specific remodeling of microglia and neuronal morp...

Gaspar, Rita; Soares-Cunha, Carina; Domingues, Ana Verónica; Coimbra, Bárbara; Baptista, Filipa I.; Pinto, Luísa; Ambrósio, António; Rodrigues, Ana João

Prenatal exposure to stress or glucocorticoids (GC) is associated with the appearance of psychiatric diseases later in life. Microglia, the immune cells of the brain, are altered in stress-related disorders. Synthetic GC such as dexamethasone (DEX) are commonly prescribed in case of preterm risk labour in order to promote fetal lung maturation. Recently, we reported long-lasting differences in microglia morphol...


Retinal texture biomarkers may help to discriminate between Alzheimer's, Parkin...

Nunes, Ana; Silva, Gilberto; Duque, Cristina; Januário, Cristina; Santana, Isabel; Ambrósio, António; Castelo-Branco, Miguel; Bernardes, Rui

A top priority in biomarker development for Alzheimer's disease (AD) and Parkinson's disease (PD) is the focus on early diagnosis, where the use of the retina is a promising avenue of research. We computed fundus images from optical coherence tomography (OCT) data and analysed the structural arrangement of the retinal tissue using texture metrics. We built clinical class classification models to distinguish bet...


Evaluation of markers of outcome in real-world treatment of diabetic macular edema

Campos, António; Campos, Elisa J.; Carmo, Anália do; Caramelo, Francisco; Martins, João; Sousa, João P.; Ambrósio, António; Silva, Rufino

Objective: To evaluate short-term markers of outcome in diabetic macular edema (DME). Methods: Prospective interventional case series included 122 eyes of 122 patients with recently diagnosed DME. Eyes were treated with a 3-monthly loading dose of ranibizumab or aflibercept and pro re nata thereafter. Serial enhanced deep imaging SD-OCT high resolution scans were used to measure subfoveal choroidal thickness (S...


The Quadruple Helix-Based Innovation Model of Reference Sites for Active and He...

Malva, João O.; Amado, Alda; Rodrigues, Alexandra; Mota-Pinto, Anabela; Cardoso, Ana F.; Teixeira, Ana M.; Todo-Bom, Ana; Devesa, António

Challenges posed by demographic changes and population aging are key priorities for the Horizon 2020 Program of the European Commission. Aligned with the vision of the European Innovation Partnership on Active and Healthy Ageing (EIP on AHA), the development, exchange, and large-scale adoption of innovative good practices is a key element of the responses required to ensure all European citizens remain as activ...


Doença de Hodgkin na Criança. Experiência de 10 Anos

Costa, Paula Lopes da; Lacerda, Ana Forjaz de; Vieira, Ester; Chagas, Mário; Ambrósio, António; Neto, Ana; Pereira, Filomena; Ribeiro, Maria José

Objectivos: Caracterizar os casos de Doença de Hodgkin (DH) seguidos no Serviço de Pediatria do Instituto Português de Oncologia de Francisco Gentil — Centro de Lisboa (IPOFG-L) e avaliar a eficácia e efeitos secundários do tratamento. Métodos: Análise retrospectiva dos processos clínicos dos doentes admitidos com DH no IPOFG-L entre Janeiro de 1987 e Dezembro de 1996. Resultados: Foram estudados 53 doentes (40...


Differential Contribution of L-, N-, and P/Q-type Calcium Channels to [Ca2+]i C...

Santiago, Ana; Carvalho, Caetana; Carvalho, Arsélio; Ambrósio, António

Abstract We investigated the contribution of L-, N- and P/Q-type Ca2+ channels to the [Ca2+]i changes, evoked by kainate, in the cell bodies of hippocampal neurons, using a pharmacological approach and Ca2+ imaging. Selective Ca2+ channel blockers, namely nitrendipine, ?-Conotoxin GVIA (?-GVIA) and ?-Agatoxin IVA (?-AgaIVA) were used. The [Ca2+]i changes evoked by kainate presented a high variability, and were ...



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