RESUMO
BACKGROUND: The purpose of this study was to evaluate the acute effects of thymoquinone (TQ) on acute nerve injury. METHODS: A rat model of crush injury of the sciatic nerve was used. Animals were divided into 3 groups: control, trauma, and TQ treatment groups (n=6 per group). Seven days after injury, sciatic nerve specimens were obtained from the site of the injury and analyzed histologically and stereologically. Axon diameter, myelin thickness, and axon density were measured. RESULTS: There were no significant differences in axon diameter, myelin thickness, or axon density among groups. CONCLUSION: TQ has no acute therapeutic effect on acute nerve injury.
Assuntos
Benzoquinonas/uso terapêutico , Modelos Animais de Doenças , Fármacos Neuroprotetores/uso terapêutico , Traumatismos dos Nervos Periféricos/prevenção & controle , Nervo Isquiático/lesões , Animais , Benzoquinonas/administração & dosagem , Feminino , Regeneração Nervosa , Fármacos Neuroprotetores/administração & dosagem , Distribuição Aleatória , RatosRESUMO
AIM: Timing of shunt insertion in infants with myelomeningocele (MM) and hydrocephalus (HCP) has been debated. Many authors have suggested to perform the repair of MM and shunt insertion during same operation. However, there is also an opposite view. MATERIAL AND METHODS: We analyzed retrospectively 166 patients who underwent MM Sac repair to evaluate whether there are difference between these two methods in terms of shunt infection rate. RESULTS: In the same session, V-P (ventriculoperitoneal) shunt placement was performed onto 65 infants within the first 48 hours of postnatal and 36 infants were operated 48 hours after birth. In separate sessions, repair of MM were performed onto 29 infants within the first 48 hours of postnatal and shunting was peformed 7 days after sac repair. 14 infants were performed MM sac repair 48 hours after birth, then shunt was applied 7 days after closure of MM. Shunt infection rate in concurrently operated groups was markedly high (12.3 % in early surgery, 33.3% in late surgery); in separatedly operated groups' shunt infection rate was lower (3.44% in early surgery, 14.29% in late surgery). CONCLUSION: We propose to perform V-P shunt placement and MM repair in separate sessions.