Encontrados 7 documentos, a visualizar página 1 de 1
Monozygotic twin sisters discordant for familial hemiplegic migraine
Barros, J.; Barreto, R.; Brandão, A.; Domingos, J.; Damásio, J.; Ramos, C.; Lemos, C.; Sequeiros, J.; Alonso, I.; Pereira-Monteiro, J.Background: The high concordance rate of migraine in monozygotic twin pairs has long been recognised. In the current study, we present a monozygotic twin pair discordant for familial hemiplegic migraine (FHM). Case presentations: We evaluated 12 adult family members in 2012. The twin pair was separately examined by neurologists at different time points. Mutation screening was performed for known FHM-related gen...
Effects of Corynespora cassiicola on Lantana camara
Passos,J.L.; Barbosa,L.C.A.; Demuner,A.J.; Barreto,R.W.; King-Diaz,B.; Lotina-Hennsen,B.The present study combines the examination of toxins produced by C. cassiicola and the effects of the fungus colonization on L. camara. C. cassiicola was cultivated on solid media and the crude extracts CAE and CE were produced. Both extracts were submitted to a seed germination and growth assay utilizing Physalis ixocarpa, Trifolium alexandrinum, Lolium multiflorum and Amaranthus hypochodriacus. The effect of ...
Stress responses of the fish Nile tilapia subjected to electroshock and social ...
Barreto,R.E.; Volpato,G.L.Plasma cortisol and glucose levels were measured in 36 adult Nile tilapia males, Oreochromis niloticus (standard length, mean ± SD, 14.38 ± 1.31 cm), subjected to electroshock and social stressors. Pre-stressor levels were determined 5 days after the adjustment of the fish to the experimental aquaria (1 fish/aquarium). Five days later, the effects of stressors on both cortisol and glucose levels were assessed. ...
Área de ocorrência do mexilhão dourado (Limnoperna fortunei) na bacia do Alto P...
OLIVEIRA, M. D. de; PELLEGRIN, L. A.; BARRETO, R. R.; SANTOS, C. L. dos; XAVIER, I. G.O uso de água armazenada nos grandes navios marítimos para obter maior estabilidade, ajudar na propulsão e em manobras, a chamada "água de lastro", é o principal meio de introdução de organismos marinhos em ambientes aquáticos, tanto marinhos como de água doce. Em todo o mundo são transferidas anualmente cerca de 12 bilhões de toneladas de "água de lastro", que transportam aproximadamente 4.500 espécies diferen...
Sex-specific compensatory growth in food-deprived Nile tilapia
Barreto,R.E.; Moreira,P.S.A.; Carvalho,R.F.Female Nile tilapia incubate fertilized eggs in their mouth until they are released as alevins. Consequently, the female may not eat during this period. Thus, it would be expected that female Nile tilapia are more adapted to recovering from fasting than males, which do not display this behavior. To test this hypothesis we conducted an experiment with two groups of fish consisting of 7 males and 7 females each, ...
Eye color as an indicator of social rank in the fish Nile tilapia
Volpato,G.L.; Luchiari,A.C.; Duarte,C.R.A.; Barreto,R.E.; Ramanzini,G.C.We investigated the association of eye color with the dominant-subordinate relationship in the fish Nile tilapia, Oreochromis niloticus. Eye color pattern was also examined in relation to the intensity of attacks. We paired 20 size-matched fish (intruder: 73.69 ± 11.49 g; resident: 75.42 ± 8.83 g) and evaluated eye color and fights. These fish were isolated in individual aquaria for 10 days and then their eye c...
Environmental blue light prevents stress in the fish Nile tilapia
Volpato,G.L.; Barreto,R.E.The present study aimed to test the effects of blue, green or white light on the stress response of the Nile tilapia, Oreochromis niloticus (L.). Each color was tested on two groups of isolated adult Nile tilapia (8 replicates each): one being subjected to confinement stress, and the other not (control). A different environmental color was imposed on each compartment by covering the light source with cellophane...
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