Publications by authors named "Paulo Sergio dos Santos"

The present study aimed to investigate the response of soybean cultivars with different susceptibility levels to the root-knot nematode Meloidogyne javanica at varied time intervals by analyzing the initial plant-nematode interaction using antioxidant enzymes as oxidative stress markers. A 4 × 4 × 2 factorial method with 5 repetitions was used to analyze 4 soybean cultivars at 4 different collection times-6, 12, 24, and 48 h-with and without M. javanica inoculation.

View Article and Find Full Text PDF

Meloidogyne javanica is among the most important nematodes that damage soybean, and although genetic resistance is the ideal control measure, there are few cultivars described as resistant among those recommended for southern Brazil. The objective of this work was to evaluate the reaction of soybean cultivars to M. javanica.

View Article and Find Full Text PDF

plants showing symptoms of root-knot nematode infestation were observed in the municipality of Agudo, Rio Grande do Sul state, Brazil. Based on morphological observation, esterase phenotypes, and molecular analyses of rDNA-ITS and D2-D3 regions of 28S rDNA, the causal agent of the observed symptoms was identified as . Pathogenicity of was confirmed by fulfilling modified Koch's postulates.

View Article and Find Full Text PDF

Objectives: To evaluate the tomographic distance between the sternoclavicular joints and the nearest hilar structures.

Methods: Computed tomography images (axial and sagittal slices) in 120 healthy individuals (60 men and 60 women) between 18 and 60 years old were prospectively analyzed. The distances from both sternoclavicular joints to the respective brachiocephalic veins, trachea, esophagus, and lung apexes were measured and related to age, sex, and body mass index.

View Article and Find Full Text PDF

Shoulder fracture-dislocations are uncommon. Those associated with intrathoracic dislocation are very rare conditions, resulting from high-energy trauma; usually, the affected limb is in an abduction position. In Brazil, there is only one report of a teenager with displacement of the epiphysis into the chest cavity; the present is the first adult patient report of intrathoracic dislocation of the humerus.

View Article and Find Full Text PDF

Autologous nerve grafting is the most referred technique for bridging neural gaps. The aim of this study was to evaluate the effects of distally sliding the epineurial sheath to cover a defect created in the left sciatic nerve of the rat. Twenty male Wistar rats were divided into three groups: sham (n=6), in which the sciatic nerve was dissected but left intact; conventional suture (CS, n=7), in which a transverse section of the sciatic nerve was followed by an epineurial suture; sliding of the distal epineurial sheath (SDES, n=7), in which a 5 mm resection of the nerve was conducted, followed by a circumferential cut in the distal epineurium, and the epineurial sheath was slid down and sutured into the distal end of the epineurium of the proximal stump.

View Article and Find Full Text PDF