Acute renal infarction is a rare disease and it is often difficult to make a clinical diagnosis due to the non-specific clinical presentations and lack of the physicians' awarenesses. We experienced a case of a 72-year-old man who was diagnosed as multiorgan with renal infarction during the bridge therapy of cerebral infarction with atrial fibrillation. Computed tomogram (CT) with intravenous contrast of the abdomen and pelvis revealed left renal infarction with renal artery occlusion, multifocal splenic infarction, and ischemic colitis on rectum and sigmoid colon. The patient was treated with low molecular weight heparin for 10 days, his symptoms were improved and laboratory findings were normalized. Follow-up CT was performed on the 43th day, there were persisted left renal infarction with atrophic change shown and the splenic perfusion was improved.
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To investigate the effect of electrical stimulation (ES) on the recovery of motor skill and neuronal cell proliferation.
The male Sprague-Dawley rats were implanted with an epidural electrode over the peri-ischemic area after photothrombotic stroke in the dominant sensorimotor cortex. All rats were randomly assigned into the ES group and control group. The behavioral test of a single pellet reaching task (SPRT) and neurological examinations including the Schabitz's photothrombotic neurological score and the Menzies test were conducted for 2 weeks. After 14 days, coronal sections were obtained and immunostained for neuronal cell differentiation markers including bromodeoxyuridine (BrdU), neuron-specific nuclear protein (NeuN), and doublecortin (DCX).
On the SPRT, the motor function in paralytic forelimbs of the ES group was significantly improved. There were no significant differences in neurological examinations and neuronal cell differentiation markers except for the significantly increased number of DCX+ cells in the corpus callosum of the ES group (p<0.05). But in the ES group, the number of NeuN+ cells in the ischemic cortex and the number of NeuN+ cells and DCX+ cells in the ischemic striatum tended to increase. In the ES group, NeuN+ cells in the ischemic hemisphere and DCX+ cells and BrdU+ cells in the opposite hemisphere tended to increase compared to those in the contralateral.
The continuous epidural ES of the ischemic sensorimotor cortex induced a significant improvement in the motor function and tended to increase neural cell proliferation in the ischemic hemisphere and the neural regeneration in the opposite hemisphere.
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