CB - DFIS - Artigos publicados em periódicos

URI Permanente para esta coleçãohttps://repositorio.ufrn.br/handle/1/16

Navegar

Agora exibindo 1 - 4 de 4

Astragaloside IV supplementation promotes a neuroprotective effect in experimental models of neurological disorders: a systematic review
(Bentham Science Publishers, 2019-06-19) Costa, Ianara M.; Lima, Francisca O. V.; Fernandes, Luciana C. B.; Norrara, Bianca; I. Neta, Francisca; Alves, Rodrigo D.; Cavalcanti, José R. L. P.; Lucena, Eudes Euler de Souza; Cavalcante, Jeferson de Souza; Rego, Amalia C. M.; Araújo Filho, Irami; Queiroz, Dinalva B.; Freire, Marco A. M.; Guzen, Fausto P.
Background: Neurological disorders constitute a growing worldwide concern due to the progressive aging of the population and the risky behavior they represent. Herbal medicines have scientific relevance in the treatment of these pathologies. One of these substances, Astragaloside IV (AS-IV), is the main active compound present in the root of Astragalus membranaceus (Fisch.) Bge, a Chinese medicinal herb with neuroprotective properties. Objective: In the present study we performed a systematic review that sought to comprehend the neuroprotective effect presented by AS-IV in experimental models of neurological disorders. Methods: This study is a systematic review, where an electronic search in United States National Library of Medicine (PubMed), Science Direct, Cochrane Library, Scientific Electronic Library Online (SciELO), Scopus, Web of Science, Medline via Proquest and Periodicos Capes databases covering the years between 2007 and 2017, using “Astragaloside IV” and “Neurodegenerative diseases”; “Astragaloside IV” and “ Neurological disorders” as reference terms was made. Results: A total of 16 articles were identified, in which the efficacy of AS-IV was described in experimental models of Parkinson’s disease, Alzheimer’s disease, cerebral ischemia and autoimmune encephalomyelitis, by improving motor deficits and/or neurochemical activity, especially antioxidant systems, reducing inflammation and oxidative stress. Conclusion: The findings of the present study indicate that the administration of AS-IV can improve behavioral and neurochemical deficits largely due to its antioxidant, antiapoptotic and antiinflammatory properties, emerging as an alternative therapeutic approach for the treatment of neurological disorders
Combination sciatic nerve graft and fibroblastic growth factor 2 promotestissue regeneration for NF-200 and 5-HT in spinal cord injury
(Research Journal of Pharmaceutical, Biological and Chemical Sciences, 2018-07) Fernandes, Aline Samaya Santos; Castro, Aline Brito Ferreira de; Rêgo, Amália Cinthia Meneses do; Araújo Filho, Irami; Lucena, Eudes Euler de Souza; Cavalcanti, José Rodolfo Lopes de Paiva; Costa, Ianara Mendonça da; Cavalcante, Jeferson de Souza; Costa, Mirian Stela Maris de Oliveira; Guzen, Fausto Pierdoná
Traumatic injury to the spinal cord results in a rapid and significant loss of function. One barrier to successful regeneration in the adult CNS is the diminished axonal growth capacity after maturation. Therefore, strategies that seek to promote the restoration of function to the chronically injured spinal cord have high therapeutic value. Neurotrophic factors and peripheral nerves are known to be good substrates for bridging the lesions associatedwith CNS trauma. The role of fibroblast growth factor-2, when added to the sciatic nerve, was examined following spinal cord injury in a rat. We evaluated whether FGF-2 added to a sciatic nerve graft placed in a gap promoted nerve recovery following a complete transection of the spinal cord and if it could enhance neuronal plasticity. Rats underwent a transection at the thoracic level, which was repaired with saline or a fragment of the sciatic nerve. In another group, FGF-2 was added immediately after thelesion. The effects of FGF-2 and the fragment of the sciatic nerve graft on neuronal plasticity were investigated at the epicenterof the injury using NF-200 and 5-HT immunoreactivity after 8 weeks.A high number of NF-200 and 5-HT immunoreactive fibers were observed in the treated groups with sciatic nerve graft in the presence or absence of FGF-2 when compared to the saline group. However, a small number of NF-200(p=0.03)and 5-HT fibers were observed in the epicenter of the graft when FGF-2 was added,when compared to the group that received sciatic nerve graft. These results indicate that sciatic nerve grafting favors the growth of fibers in the traumatized spinal cord, an effect that is slightly influenced by the addition of FGF-2 to the NF-200 and 5-HT immunoreactive fibers
Development of new techniques for behavioral evaluation In animals submitted to facial nerve damage
(Research Journal of Pharmaceutical, Biological and Chemical Sciences, 2019) Oliveira, Lucidio Clebeson de; Oliveira, Eligleidson José Vidal de; Lucena, Eudes Euler de Souza; Cavalcanti, José Rodolfo Lopes de Paiva; Fernandes, João Paulo Costa; Souza Júnior, José Edvan de; Cavalcante, Jeferson de Souza; Azevedo, Eduardo Pereira de; Rêgo, Amália Cinthia Meneses do; Araújo Filho, Irami; Castro, Aline Brito Ferreira de; Guzen, Fausto Pierdoná
Three new methods for evaluating facial nerve injury were developed: Spontaneous ocular opening, vibrissae reflex and resistance to upper eyelid lifting. Nerve crush injury was performed by pressing the mice’s facial nerve with forceps for 30 seconds. Scores were given based on the comparison between the behavioral assessment of the injured and non-injured sides. Facial nerve injury is currently evaluated by observing the movement of the mice’s vibrissae and the ocular closure. In this study, three additional tests are proposed. Therefore, a wider evaluation can be accomplished where all the aspects of the facial mimicry can be assessed. The use of the 3 new methods described in this study, in addition to the 2 methods currently used, allows a complete behavioral assessment of facial nerve lesions as several behavioral aspects related to these injuries can be evaluated
Expansion and phenotypic changes of mouse bone marrow mesenchymal cells cultured with FGF-2 and facial nerve-conditioned medium
(Sociedade Chilena de Anatomía, 2018-09) Lucena, Eudes Euler de Souza; Morais, Hécio Henrique Araújo de; Araújo, Dayane Pessoa de; Cavalcanti, José Rodolfo Lopes de Paiva; Azevedo, Eduardo Pereira de; Queiroz, Dinalva Brito de; Botelho, Marco Antônio; Rêgo, Amália Cinthia Meneses do; Araújo Filho, Irami; Barboza, Carlos Augusto Galvão; Nascimento Júnior, Expedito Silva do; Costa, Miriam Stela Maris de Oliveira; Cavalcante, Jeferson de Sousa; Guzen, Fausto Pierdoná
Mesenchymal cells (MCs) exhibit great regenerative potential due to their intrinsic properties and ability to restore tissue function, either directly through transdifferentiation or indirectly through paracrine effects. This study aimed to evaluate morphometric and phenotypic changes in MCs grown with facial nerve-conditioned medium in the presence or absence of fibroblast growth factor 2 (FGF-2). For quantitative phenotypic analysis, the expression of GFAP, OX-42, MAP-2, β-tubulin III, NeuN, and NF-200 was analyzed by immunocytochemistry. Cells cultured with facial nerve-conditioned medium in the presence of FGF-2 expressed GFAP, OX-42, MAP-2, β-tubulin III, NeuN, and NF-200. On average, the area and perimeter of GFAP-positive cells were higher in the group cultured with facial nerve-conditioned medium compared to the group cultured with conditioned medium and FGF-2 (p=0.0001). This study demonstrated the plasticity of MCs for neuronal and glial lineages and opens up new research perspectives in cell therapy and trans.differentiation

SIGAA

Navegar

Navegando CB - DFIS - Artigos publicados em periódicos por Autor "Araújo Filho, Irami"