12 documents found, page 1 of 2
Cannabinoid type 2 receptor inhibition enhances the antidepressant and proneuro...
Rodrigues, Rui S.; Moreira, João B.; Mateus, Joana; Barateiro, Andreia; Paulo, Sara L; Vaz, Sandra H.; Lourenço, Diogo M.; Ribeiro, Filipa; Soares, RitaChronic stress is a major risk factor for neuropsychiatric conditions such as depression. Adult hippocampal neurogenesis (AHN) has emerged as a promising target to counteract stress-related disorders given the ability of newborn neurons to facilitate endogenous plasticity. Recent data sheds light on the interaction between cannabinoids and neurotrophic factors underlying the regulation of AHN, with important ef...
Corrigendum: Comparison of 3DCRT and IMRT out-of-field doses in pediatric patie...
Sá, Ana Cravo; Barateiro, Andreia; Bednarz, Bryan P.; Almeida, Pedro; Vaz, Pedro; Madaleno, TiagoThis article is a correction to: Comparison of 3DCRT and IMRT out-of-field doses in pediatric patients using Monte Carlo simulations with treatment planning system calculations and measurements.
Comparison of 3DCRT and IMRT out-of-field doses in pediatric patients using Mon...
Sá, Ana Cravo; Barateiro, Andreia; Bednarz, Bryan P.; Almeida, Pedro; Vaz, Pedro; Madaleno, TiagoPurpose: Out-of-field doses are given to healthy tissues, which may allow the development of second tumors. The use of IMRT in pediatric patients has been discussed, as it leads to a "bath" of low doses to large volumes of out-of-field organs and tissues. This study aims to compare out-of-field doses in pediatric patients comparing IMRT and 3DCRT techniques using measurements, Monte Carlo (MC) simulations, and ...
S100B inhibition protects from chronic experimental autoimmune encephalomyelitis
Barros, Catarina; Barateiro, Andreia; Neto, Alexandre; Soromenho, Beatriz; Basto, Afonso; Mateus, Joana; Xapelli, Sara; Sebastião, Ana M; Brites, DoraStudies have correlated excessive S100B, a small inflammatory molecule, with demyelination and associated inflammatory processes occurring in multiple sclerosis. The relevance of S100B in multiple sclerosis pathology brought an emerging curiosity highlighting its use as a potential therapeutic target to reduce damage during the multiple sclerosis course, namely during inflammatory relapses. We examined the rele...
Therapeutic targeting of PD-1/PD-L1 blockade by novel small-molecule inhibitors...
Acúrcio, Rita C; Pozzi, Sabina; Carreira, Barbara; Pojo, Marta; Gómez-Cebrián, Nuria; Casimiro, Sandra; Fernandes, Adelaide; Barateiro, AndreiaBackground: Inhibiting programmed cell death protein 1 (PD-1) or PD-ligand 1 (PD-L1) has shown exciting clinical outcomes in diverse human cancers. So far, only monoclonal antibodies are approved as PD-1/PD-L1 inhibitors. While significant clinical outcomes are observed on patients who respond to these therapeutics, a large proportion of the patients do not benefit from the currently available immune checkpoint...
Assessment of out-of-field doses in radiotherapy treatments of paediatric patie...
Sá, Ana Cravo; Barateiro, Andreia; Bednarz, Bryan; Borges, Cecília; Pereira, Joana; Baptista, Mariana; Pereira, Miguel; Zarza-Moreno, MiriamPurpose: To assess out-of-field doses in radiotherapy treatments of pediatric patients, using Monte Carlo methods to implement a new model of the linear accelerator validated against measurements and developing a voxelized anthropomorphic pediatric phantom. Methods: CT images of a physical anthropomorphic pediatric phantom were acquired and dosimetric planning using a TPS was obtained. The CT images were used t...
Brain-sparing sympathofacilitators mitigate obesity without adverse cardiovascu...
Mahú, Inês; Barateiro, Andreia; Rial-Pensado, Eva; Martinéz-Sánchez, Noelia; Vaz, Sandra H.; Cal, Pedro M.S.D.; Jenkins, Benjamin; Rodrigues, Tiago M.Anti-obesity drugs in the amphetamine (AMPH) class act in the brain to reduce appetite and increase locomotion. They are also characterized by adverse cardiovascular effects with origin that, despite absence of any in vivo evidence, is attributed to a direct sympathomimetic action in the heart. Here, we show that the cardiac side effects of AMPH originate from the brain and can be circumvented by PEGylation (PE...
Leptin Resistance and the Neuro-Adipose Connection
Barateiro, Andreia; Mahú, Ines; Domingos, Ana I.Obesity is a public health concern affecting both genders at all ages around the world. The worldwide prevalence of obesity is rapidly increasing and has nearly doubled between 1980 and 2016. Consequently, it places a large financial burden on the economy due to the increased morbidity and mortality, as well as the reduced quality of life and development of chronic diseases. Obesity is typically characterized b...
S100B as a potential biomarker and therapeutic target in multiple sclerosis
Barateiro, Andreia; Afonso, Vera; Santos, Gisela; Cerqueira, João José; Brites, Dora; Horssen, Jack van; Fernandes, AdelaideMultiple sclerosis (MS) pathology is characterized by neuroinflammation and demyelination. Recently, the inflammatory molecule S100B was identified in cerebrospinal fluid (CSF) and serum of MS patients. Although seen as an astrogliosis marker, lower/physiological levels of S100B are involved in oligodendrocyte differentiation/maturation. Nevertheless, increased S100B levels released upon injury may induce glial...
Bilirubin dysregulates myelination in early neonatal life
Barateiro, AndreiaOligodendrocytes (OL) are neuroglial cells present in the central nervous system responsible for myelin sheath formation, that provide an electric insulation of axons fastening the transmission of electrical signals. During the neonatal period, the brain is particularly vulnerable to toxic insults, like the one induced by hyperbilirubinemia. It has been demonstrated that in this condition, high levels of unconj...