Humans ; Medicine, Chinese Traditional ; Sleep Wake Disorders ; classification ; etiology ; therapy

Objective To study the influence of edaravone on malondialdehyda(MDA)and expression of Hsp-70 and Bcl-2 in the perihematoma region in rats.Methods A total of 120 health male rats were randomly divided into false-operation group(n=20)、intracerebral hemorrhage(ICH)-therapy group(n=50)and ICH control group.Each group was further divided into 5 subgroups respectively according to 6 h、24 h、48 h、72 h and 5d after model creation.Cerebral hemorrhage model was duplicated with the method created by Fredrik.Brain water content and MDA were measured.Expression of Hsp-70 and Bcl-2 were assayed in each group with immunohistochemical method.Results Brain water content and MDA were lower in ICH-therapy group than those in control group(P

Objective To investigate the role of MRI in diagnosis of primary intracranial teratoma.Methods Nine cases of primary intracranial teratoma proved by operation and pathology were examined by MRI before operation.MRI features were analysed retrospectively.Results The localized and qualitative rates were 100% and 88.8% respectively.The characteristic MRI appearances of primary intracranial teratoma were as follows:(1)The tumor was lobular in shape with clear margin;(2)The tumor had heterogeneous signal intensity ;(3)Inhomogeneous Gd-DTPA enhancement in most of the tumors.Conclusion Multiplanar imaging and Gd-DTPA enhancement in MRI are helpful in diagnosis and differential diagnosis of teratoma.

To explore the clinical efficacies of hyperbaric oxygen therapy on the recovery of cognitive function in stroke patients on hemodialysis.Forty stroke patients on hemodialysis were assigned randomly into hyperbaric oxygen therapy (HBO) (n =20 ) and routine therapy groups (n =20).Patients of HBO group received both hyperbaric oxygen therapy and routine therapy.Nerves functions and cognitive function were observed before and after therapy to compare the clinical outcomes.Neuropsychological tests,minimental status examination (MMSE) and activities of daily living (ADL) were used for assessing cognitive function.Then the outcomes were compared with those of the control group.Nerves function and cognitive dysfunction of the treatment group had significant improvement (P ＜ 0.01).Hyperbaric oxygen can significantly improve cognitive dysfunction in stroke patients on hemodialysis.

In this paper,we reported the results of 36 cases with lumbar disc prolapse through conservative treatment in order to observe the relationship between the effect of conservative treatment and the results of CT scan.We found that the effectiveness of treatment was related to the size and location of the disc protrusion as well as the course of disease.The results suggested that these factors should be considered fully during selecting the methods of conservative treatment or operation in lumbar disc prolapse.

Objective To investigate the effect of early interventions with helium-neon (He-Ne) laser and infrared physical therapy in the treatment of herpes coster. Methods Sixty-six patients with herpes zoster and concurrent severe neuralgia were randomly divided into treatment and control groups (n=33). The patients in the control group received routine treatment, and early He-Ne laser and infrared treatment was administered in addition to the routine treatment in the treatment group. The visual analogue scale (VAS) was used to evaluate the therapeutic effects in the two groups. Results Early intervention with laser and infrared treatment produced significantly better therapeutic effects than the routine treatment (U=193.520,P=0.000). In the treatment group, the rate of excellent or good therapentic effects and the response rate was 90.9% and 100.0%, respectively, without occurrence of postherpetic neuralgia;in the control group, the rate of good therapeutic effects and the response rote was 63.6% and 81.8%, respectively, and postherpetic neuralgia occurred in 3 eases (9.1%) after the treatment. Conclusion Early intervention with He-Ne laser and infrared treatment in patients with herpes coster helps achieve rapid control of the condition, shortens the treatment course, and reduces the occurrence of postherpetic neuralgia.

Objective To identify antimicrobial susceptibilities of community-acquired Staphylococcus aureus infections and the risk factors of severe infections.Methods Clinical data of 184 cases of community-acquired Staphylococcus aureus infections collected from 4 hospitals in Ningbo during May 2008 and May 2013 were reviewed.Microbial sensitivity test and virulence genes ( pvl and tst) detection were performed in clinical isolates, and SCCmec genotyping was performed in methicillin-resistant Staphylococcus aureus ( MRSA) strains.Binary logistic regression analysis was used to identify the risk factors for severe infections.Results Among 184 cases of community-acquired Staphylococcus aureus infections, 39 ( 21.20%) were severe cases. Staphylococcus aureus strains were highly resistant to penicillin, erythromycin and clindamycin, but more than 75% strains were sensitive to oxacillin, aminoglycosides, quinolones, rifampicin and vancomycin.Logistic regression analysis showed that advanced age (OR=1.024, 95%CI:1.005-1.043, P<0.05), malignant tumor (OR=15.288, 95%CI:1.609-145.229, P<0.05) , autoimmune diseases or long-term hormone therapy ( OR=12.102, 95%CI:2.082-70.338, P <0.01 ) were risk factors for severe community-acquired Staphylococcus aureus infections. Conclusions Strains isolated from the patients with community-acquired Staphylococcus aureus infections in Ningbo are usually sensitive to oxacillin, aminoglycosides, quinolones, rifampicin and vancomycin, which may be recommended for clinical use.Elder patients and those with malignant tumor, autoimmune diseases or long-term hormone therapy are more likely to develop severe Staphylococcus aureus infections.

Objective To evaluate the clinical significance and prognosis of tetus with lateral ventriculomegaly.Methods We retrospectively analyzed 92 singleton pregnant women who were antenatally diagnosed with fetal ventriculomegaly by ultrasound in genetic conselling clinics,Department of Gynaecology and Obstetrics,Nanfang Hospital,Southern Medical University between August 2007 and August 2010.All participants were divided into three groups according to the width of the lateral ventricles:group A (10.0-12.0 mm,n＝50),group B (12.1-14.9 mm,n=38) and severe ventriculomegaly group (≥15.0 mm,n=4).All fetuses were followed up.Chi-square test(or Fisher's exact test),Bonfferoni method,Mann Whitney or Kruskal-Wallis test were used for statistics.Results In group A,B and severe ventriculomegaly group,18％ (9/50),65.8％(25/38)and 3/4 of fetuses were complicated with structural malformation,respectively (x2 =22.934,P =0.000),and statistical significance were found only between group A and B (x2 =20.798,P=0.000).The incidences of fetal chromosomal aberration were 4.0％ (2/50),7.9％ (3/38)and 0/4 in the three groups,respectively (x2＝0.878,P ＝ 0.645).Eventually,all four cases with severe cerebral ventriculomegaly were terminated.Among cases of mild ventriculomegaly,63 women continued the pregnancy (48 in group A and 15 in group B).The intrauterine improvement of group B was poorerthan that of group A (Z=-3.317,P =0.001).Respectively,three,ten and two cases of ventriculomegaly deteriorated,stabilized and regressed in group B,and the corresponding figures were 3,15 and 30 in group A.In group A,the prognosis of fetus with non-isolated ventriculomegaly was poorer than that of fetus with isolated ventriculomegaly (Z=-2.631,P=0.009).For neonates 14 days after birth (n=62),the rates of normal neonatal behavioral neurological assessment (NBNA) scoring were respectively 93.8％ (45/48) and 71.4％ (10/14) for groups A and B with statistical difference (Fisher's exact test,P =0.040).Bayley scales of infant development (BSID) used to evaluate infants at 12-month-old revealed that the psychomotor developmental index (PDI) between group A and group B had statistical difference (8,26 and 1 case of good,moderate and poor development in group A; one,seven and three cases in group B; Z=-2.203,P=0.043).However,the mental developmental index (MDI) between group A and B had no statistical difference.Twenty babies among the survived ones received magnetic resonance imaging (MRI) examination.The results showed that lateral ventricle width regressed in nine babies (45.0％) and progressed in one baby (5.0％).Ten cases (50.0％) did not change.The change of ventriculomegaly after birth was related to BSID evaluation.Better prognosis of fetuses were found in those with regressed ventriculomegaly (P=0.033).Conclusions Fetuses with mild ventriculomegaly (10.0 12.0 mm) have a favorable outcome.Further investigations,such as fetal development,chromosomal examination,intrauterine infection screening and MRI if necessary,are suggested for fetus with ventriculomegaly.Moreover,intensive intrauterine and postnatal follow-up is recommended.

Objective To investigate the effect and mechanism of Ghrelin on the contraction and relaxation of rat small intestinal smooth muscle. Methods The effect of different concentrations of Ghrelin (0;20;40;80 μg/kg) on the small intestinal transit in vagotomized rats in vivo and Ghrelin (0.01; 0.1;0.5 ; 1.0 μmol/L) on the contraction and relaxation of rat small intestinal smooth muscle strips in vitro was observed,the locations of Ghrelin receptors (GHS-R1 a) in small intestinal muscle layers were detected by immunofluorescency. Results Ghrelin dose-dependently increases small intestinal transit (( 25.4 ± 1.0)％,(33.7 ± 1.9)％,(39.3 ±2.4)％,(44.7 ±2.1)％),enhances the contraction ((67.0 ±2.4)％,(149.5 ±3.3)％,(187.1 ±4.7)％,(213.5 ±3.4)％) and relaxation ((35.3 ± 1.1)％,(62.9 ± 3.8 ) ％,( 79.6 ± 2.7 ) ％,( 94.6 ± 2.2 ) ％ ) of smooth muscle strips mediated by carbachol.Ghrelin receptors were mainly located on membrane of the nerve cells in the muscle layers,while no receptors exist on membrane of smooth muscle cells. Conclusions Ghrelin enhances the effect of contraction and relaxation of rat small intestinal smooth muscle mediated by cholinergic neurotransmitters activating nerve cells in the enteric plexus.

A sequential extraction procedure has been proposed for the evaluation of the speciation of heavy metals including Cd,Cu,Pb and Zn in sediments from mariculture area,and the speciation of heavy metals was separated and defined as acid soluble fraction,reducible fraction,fraction bound organic matter,fraction bound sulfides and residual fraction. Matrix effects of high salinity on the determination of heavy metals in sediments were eliminated by matrix matching and internal standard methods when inductively couple plasma optical emission spectroscopy (ICP-OES) and mass spectroscopy (ICP-MS) were used,respectively. The results showed that the measured values of marine sediment reference materials were consistent with the standard values when the digestion solutions were determined after dilution. The extraction results of the prepositional extraction procedure and European Community Bureau of Reference Program (BCR) procedure were compared and the selectivity of extractants was investigated. The preliminary studies indicated that this sequential extraction procedure was applicable for evaluating the speciation of heavy metals in sediment with organic substances pollution and eutrophication,especially for fraction bound organic matter and fraction bound sulfides.