排序方式: 共有75条查询结果,搜索用时 156 毫秒
71.
Debora D.S. Vogel Nancy N. Ortiz-Villatoro Leandro de Freitas Flavio Aimbire Fúlvio A. Scorza Regiane Albertini Carla A. Scorza 《Journal of biophotonics》2021,14(1):e202000287
Epilepsy is a yet under-recognized consequence after a stroke and nearly 30% of cases are pharmacoresistant. There is an unmet need for therapeutic interventions during epileptogenesis for better long-term disease outcomes. Transcranial photobiomodulation (PBM) and omega-3 (Ω-3) dietary supplementation are two approaches that have been shown promising neuroprotective effects after brain injuries. Here, we studied the PBM treatment or Ω-3 diet during epileptogenesis in long-term recurrent spontaneous abnormal electrical discharges after stroke. Wistar rats received repetitive 780 nm-laser in the scalp or oral diet with Ω-3 for 2-months after photothrombotic stroke. EEG recordings were performed 60 days after treatment end. PBM but not Ω-3 reduced both electrographic seizure duration and spikes number in the ipsilateral and contralateral cortices and ventral posteromedial thalamic nucleus. Conclusively, PBM reduced epileptiform discharges in stroke-induced epilepsy. Our results suggest the PBM as a therapeutic approach for stroke-induced epileptogenesis to minimize long-term disease outcomes. 相似文献
72.
Regiane Aparecida Canatto Bruno Éric Siqueira Albino 《International journal of phytoremediation》2021,23(1):102-110
Abstract Plants used in phytoremediation should accumulate and tolerate a specific pollutant. Here, we aimed at evaluating a possible arsenic (As) accumulation and mechanisms of tolerance against As-induced damage in Landoltia punctata to explore this species for phytoremediation. Plants were subjected to increasing As levels. As absorption was higher with increasing As levels. The activity of superoxide dismutase and glutathione reductase as well as anthocyanin levels increased with As levels. Catalase and peroxidase activities increased in plants subjected to As levels up to 1.0?mg L?1 and decreased at higher levels. Due to the antioxidant system, higher levels of reactive oxygen species were restrained in plants under low levels of As. However, the levels of superoxide anion, hydrogen peroxide, and lipid peroxidation increased in response to the impaired antioxidant system induced by the highest As levels. Biomass decreased in plants exposed to As and scanning electron microscopy revealed root structural damage in the root cap of plants under 3.0?mg L?1?As. This work highlights that L. punctata can be considered a hyperaccumulator species and has potential for As phytoremediation when levels are lower than 1.0?mg L?1—a concentration 100-fold higher than that recommended for drinking water. Novelty Statement: Landoltia punctata can be considered a hyperaccumulator species and has the potential for arsenic phytoremediation when levels are lower than 1.0?mg L?1. 相似文献
73.
Reis Regiane Mônica dos Luzia da Silva Lourenço Jerry Penha Izaias Médice Fernandes 《Zeitschrift fur angewandte Ichthyologie》2020,36(4):533-535
The length–weight relationships (LWRs) were estimated of seven fish species from 22 localities in the Pantanal wetland between Mach 2006 and April 2011. Fish were sampled using seven gill nets (20 × 1.5 m; mesh size: 12, 15, 18, 20, 25, 30 and 50 mm between opposing knots) and throw traps (made of 1 m3 metal cubes, covered by a 1.5 mm nylon mesh). Standard length and weight were measured and used to calculate the LWR parameters. Values for parameter b varied from 2.87 (Apistogramma borellii) to 3.29 (Hoplerythrinus unitaeniatus) and, such values are within the expected range. 相似文献
74.
Débora D. S. Vogel Nancy N. Ortiz-Villatoro Noemi S. Araújo Márcia Jonathas Guimarães Marques Flavio Aimbire Fúlvio A. Scorza Carla A. Scorza Regiane Albertini 《Journal of biophotonics》2021,14(6):e202000500
Stroke is the main cause of death and functional disability. The available therapy affects only 5% of patients, and new therapeutic approaches have been constantly tested. Transcranial photobiomodulation (PBM) is promising for its neuroprotective effect on brain injuries. Thus, the present study investigated the PBM effects in an in vivo model of ischemic stroke induced by photothrombosis (PT). Five different groups of Wistar rats were submitted or not to a daily dose of fish oil or/and laser sessions for 2 months. The ischemia volume was evaluated by stereology; GFAP, Iba and NeuN by immunohistochemistry; TNF-α, IL-1β, IL-6, IL-10 and TGF-β by ELISA assay. PBM influenced both the lesion volume and the GFAP. Furthermore, PBM and Ω-3 or both reduced Iba RNAm. PBM reduced TNF-α, IL-1β, IL-6, brain damage, neuroinflammation and microglial activation, and it increased astroglial activity in peri-lesioned region after stroke. 相似文献
75.
Sheyla F.S. Domingues Débora V.C. Almeida Sarah R.R.A. Sealercio John P. Kastelic Regiane R. Santos 《Journal of medical primatology》2011,40(1):37-40
Background Ovarian absence is a rare condition with congenital or traumatic origin. Methods Gross and microscopic examination of two capuchin monkeys were performed. Results Case 1 had absence of the right ovary and distal uterine tube, bilateral absence of fimbriae, and a rudimentary uterus. Case 2 had unilateral ovarian absence, but a functional contralateral ovary, and a normal uterus. Conclusions Unilateral ovarian absence was confirmed in two capuchin monkeys for the first time. 相似文献