Histochemical Findings of Soleus in Relation to the Severity of Injury and Duration of Exercise in Sciatic Nerve Injured Rats

OBJECTIVE: To investigate the histopathological findings of soleus muscle in relation to the severity of injury and the duration of treadmill exercise in rats with sciatic nerve damage. METHOD: Sciatic nerve of seventy rats was compressed with haemostatic forceps. The experimental group was divided into 4 subgroups according to the intensity and duration of injury: group 1, first degree compression for 5 seconds; group 2, first degree for 30 seconds; group 3, third degree for 5 seconds; and group 4, third degree for 30 seconds. Treadmill exercise was done for either 30 minutes or 2 hours a day, 5 days a week for 4 weeks. Histochemical study of soleus was done before nerve compression and 1 week, 4 weeks after compression. RESULTS: The fiber diameter of soleus was larger in the experimental group at 4 weeks (p<0.05). The intensity of injury had greater impact on the recovery of fiber diameter than the duration. Thirty minute exercise was seen to have a earlier recovery of fiber diameter than 2 hours. CONCLUSION: These results may provide the basic data to clarify the neurological recovery in relation to the severity of injury, and to help establishing adequate duration of exercise after nerve damage.

Cerebral Infarct Caused by Ovarian Hyperstimulation Syndrome after Using an Ovulation Induction Agent: A case report

Ovarian hyperstimulation syndrome (OHSS) is a serious complication of ovulation induction agents used for patients with ovulatory dysfunction. It's pathogenesis is uncertain, although increased capillary permeability with extravasation offluid into the abdominal cavity is most likely suggested. Early features of the syndrome include nausea, vomiting,diarrhea, ascites, pleural effusion, and ovarian enlargement. In severe cases, increased viscosity with hemoconcentration hypovolemia, oliguria, coagulopathy, and thromboembolism may appear, and eventually develop to cerebral infarct. We experienced a case of cerebral infarct caused by OHSS with antiphospholipid antibody syndrome after using an ovulation induction agent, and we present this rare case with the review of literature.