Objective To observe the effect of Ultra-micro-LiuweiDihuang Decoction on the embryo brain development and the influence on brain growth hormone(GH),Somatostatin(SS)in prengnant mice of passive smoking,then to demonstrate the relationship between brain and kidney in TCM.Methods Animals were divided into 5 groups at random:normal group(A),model group(B),traditional Liuwei Dihuang Decoction group(C),1/3 dosage of Ultra-micro-LiuweiDihuang Decoction group(D)and all dosage of Ultra-micro-LiuweiDihuang Decoction group(E).The IUGR model was established by passive smoking.On the 19th day of gestation,all mice were anatomized to scale the body and brain weight of lively embryos,then a part of brain tissue was homogenated.The levels of GH and SS in brain tissues were measured by ELISA.Results Passive smoking could decrease the body and brain weight,influence the level of GH and SS in brain tissues.Compared with A and B groups,the C,D and E groups could increase body and brain weight,regulate the level of GH and SS,improve the brain development of IUGR mice obviously(P

Objective To explore the pathogenicity of Campylobacter jejuni(CJ)O∶19 strain after deletion of neuB1.Methods The mutant of CJ O∶19 by deleting neuB1,which LPS is deficient in sialic acid,was compared with the homologous wild strain by assaying their sensitivity to bactericidal activity,motility and autoagglutination of 10% normal human serum(NHS).Results The sensitivity of the mutant strain to bactericidal activity of serum was superior to that of the wild strain.The survival rate of the mutant strain was(20.6?7.4)% and(9.6?3.6)% after incubation with 10% NHS for 15 min and 60 min,that of wild strain was(36.9?5.9)% and(15.5?4.3)% respectively.The wild and mutant strains showed no significant difference in sensitivity to motility and autoagglutination of NHS.Conclusion The mutant strain possesses remarkable pathogenicity so that an inactivated vaccine from the mutant strain should be first considered.

Aim To explore the differences of pathogenesis for the hepatotoxicity induced by chronic treatment of valproic acid(VPA) in different ages,and in combination administration with inducers of liver enzyme.Methods Animal models were established by oral administration chronically with VPA at doses of 200 or 500 mg?kg~(-1) per day in 30 days for 50 Wistar rats(infant and adult rats) with inducers of liver enzyme Phenobarbital(PB) or not.Mitochondria were obtained by differential centrifugation.Levels of liver enzymes,coagulation factors,plasma ammonia,VPA and PB serum levels,and L-carnitine in sera,as well as the changes of respiratory enzymes and lipid peroxidation in hepatic mitochondria were measured.Mitochondrial membrane potential(MMP) and mRNA expression of CYP450 reductase in liver were determined by flow cytometer and in situ hybridization,and morphological changes of hepatocytes were observed under microscope with Oil-Red-O staining.Results ① In all rats treated with higher dose of VPA added with PB or not,there were no significant elevations of liver enzymes(ALT and AST).However significant abnormalities of function of blood coagulation and serum fibrinogen were shown, and the levels of plasma ammonia and L-carnitine were also changed significantly,and the changes were notable in infant rats or in those rats added with PB. ② Average contents of cytochrome aa3 in liver mitochondria of infant rats were reduced by 58.80% and 61.80% because of administration of high dose VPA and high dose VPA added with PB,but were reduced by 37.55% and 46.53% in adults.As for activities of SDH,which affected by high dose VPA in infants,were significant decreased by 44.8% and 57.9%,respectively,but still in normal range in adult groups.Activities of CCO in liver mitochondria were significantly lowered by high dose VPA or added with PB compared with controls(P

Objective To study the effects of different operation time of laparoscopic cholecystectomy(LC) on systemic stress response.Methods A total of 40 patients conducted by LC were divided into the Group A(

Objective To observe the prophylactic effect, curative effect, and side effects of topiramate (TPM) as monotherapy for rats and children with febrile seizure. Methods The susceptiveness to febrile convulsion and side effects were observed in 60 Wistar rats and 90 CFC cases after administration of TPM. Results ① The latent period of febrile seizure in rats exposed to hot bath after treatment with TPM was significantly delayed ( t =3 07-3 59, P

Objective To investigate the influencing factors and prognosis of early and late recurrence after radical resection of primary hepatocellular carcinoma(HCC).Methods The clinical data of 117 patients who received radical resection of HCC at the Tongji Hospital of Huazhong University of Science and Technology from January 2003 to December 2006 were retrospectively analyzed.Tumor recurrence occurred within 2 years after operation was defined as early recurrence,and tumor recurrence occurred latter than 2 years after operation was defined as late recurrence.Relationship between postoperative tumor recurrence and level of alpha-fetoprotein (AFP),AFP/V,tumor diameter,tumor number,blood vessel invasion,tumor differentiation,hepatic cirrhosis,hepatic function,hepatitis B surface antigen,procedure of hepatic resection and blood transfusion was analyzed.The overall survival and disease-free survival rates were determined by Kaplan-Meier method,and the survival rate was analyzed by Log-rank test.Results Eighty-five(72.6％)patients were found with tumor recurrence,including 59(50.4％)with early tumor recurrence and 26(22.2％)with late tumor recurrence.Levels of AFP,AFP/V,tumor diameter,tumor number,blood vessel invasion,tumor differentiation and blood transfusion were the influencing factors of early recurrence(x2 = 12.78,13.40,5.79,9.98,10.26,9.48,8.32,P ＜ 0.05).Level of AFP and hepatic cirrhosis were the influencing factors of late recurrence(x2 =4.46,7.75,P ＜ 0.05).AFP/V,tumor number and blood vessel invasion were the independent risk factors of early recurrence(RR = 0.170,0.172,0.064,P ＜ 0.05).Hepatic cirrhosis was the independent risk factor of late recurrence(RR = 2.809, P ＜ 0.05).The 1-,3-,5-year overall survival rates and tumor-free survival rates were 82.6％,60.8％,54.9％ and 65.0％,38.5％,23.1％.There were significant differences in overall survival and disease-free survival rates among patients with AFP ＜20 μg/L,AFP/V ＜ 14 μg/(L · cm3)or AFP/V ≥ 14 μg/(L · cm3)(P ＜ 0.05).The 1-,3-,5-year overall survival rates of patients with early tumor recurrence were 64.9％,23.0％ and 20.5％,respectively,and the 1-,3-,5-year overall survival rates of patients with late tumor recurrence were 100.0％,88.5％ and 72.5％,respectively.A significant difference in the 1-,3-,5-year overall survival rates between patients with early or late tumor recurrence was observed(x2 = 26.918,P ＜0.05).Conclusions AFP/V,tumor number,blood vessel invasion were independent risk factors of early tumor recurrence,and hepatic cirrhosis was the independent risk factor of late tumor recurrence.There is a significant difference in the survival rate between patients with early or late tumor recurrence.

BACKGROUND:The main symptoms of herpes zoster (HZ) manifest as pain and skin eruption and the pain, when treated inadequately, may proceed to become post herpetic neuralgia (PHN) which has progressively increasing incidence with age.OBJECTIVE: To observe the effect of combined therapy of super laser and Durogesic patch (transdermal fentanyl) in the treatment of elderly patients with herpes zoster and diabetes.DESIGN: Randomized controlled observation.SETTING: The First Affiliated Hospital of Jinan University.PARTICIPANTS: Thirty (14 males and 16 females) elderly patients of age 62-83 years with concurrent herpes zoster (duration 6-14 days) and diabetes who had received the conventional dermatological and medication treatment but still had persistent pain were selected form the First Affiliated Hospital of Jinan University from 2003 to 2006. All elderly patients were randomly divided into 3 groups with 10 in each group.METHODS: ① Super Lizer group (SL Group): Patients were received Super Lizer (linear polarized near-infrared light) therapy once a day for 15 days. ② Durogesic patch group (DR Group): Patients were received 2.5 mg Durogesic patch once for every 3 days. ③ Combined group (SL+ DR Group): Patients were received both the Super Lizer therapy and the Durogesic patch for 15 days.MAIN OUTCOME MASURES: All patients received the assigned treatment for 3 days and VAS was evaluated before and at the 3rd, 15th day during treatment, also at 7th day after termination of treatment. Visual analogue scales were used to assess the degree of pain and global evaluation were done With pain relief more than 70% rated as excellent, pain relief between 30%-70% rated as effective and pain relief less than 30% rated as ineffective. Adverse effects were also recorded.RESULTS: Thirty patients were all involved in the final analysis. VAS scores of all three groups were significantly decreased after 15-day treatment (P ＜ 0.05); after 3-day treatment, VAS scores of DR group (2.35±1.43) and SL+DR group (2.41 ±1.54) were significantly lower than their respective baselines and that of the SL group (7.00±0.82) (P ＜ 0.05) which showed no significant change from the baseline value. SL+DR group showed significantly higher excellent rating than that of the SL group and DR group (80%, 60%, 70%, P ＜ 0.05) at the end of the 15-day treatment. At 7th days after treatment, VAS scores of SL group (3.01±1.20) and SL+DR group (2.41±1.54) were still significantly lower than that of DR group (6.70±0.67) (P ＜ 0.05) which had returned to the pretreatment level. No serious adverse effects such as respiratory depression were observed in any of the patients. Mild side effects such as dizziness, nausea and vomiting, constipation were observed in the DR and SL+DR groups which usually subsided after a week.CONCLUSION: Combined therapy of SL and DR shows a better pain relief in the elderly patients with herpes zoster and diabetes without significant adverse effects. It provides the advantage of fast onset of effect with the Durogesic patch and the long-term effect of Super Lizer.

BACKGROUND:Hydrothermal condition of oral environment has an effect on the mechanical properties of dental core materials.
OBJECTIVE:To evaluate effect of water storage on the weight change rates and flexural properties of three dual-cure core buildup composite resins.
METHODS: Rectangular specimens (25 mm×2 mm×2 mm) were prepared from three dual-cure core buildup composite resins (LuxaCore Smartmix Dual, Para core and Clearfil DC Core). Specimens were stored in distiled water at 37℃ for 0, 1 day, 1, 2, 3 weeks and 1 month, respectively, weighted and then subjected to three-point bending test in a universal testing machine.
RESULTS AND CONCLUSION: Weight change rates of the three composite resins increased with immersion time; at the same immersion time, weight change rates of three composite resins ranked as the folowing order: LuxaCore Smartmix Dual > ParaCore > Clearfil DC Core. The flexural strength of LuxaCore Smartmix Dual decreased with immersion time. The flexural strength of ParaCore showed no significant change during 3 weeks immersion (P > 0.05), while it showed a significant decreasing after 1 month immersion (P < 0.05). There was no significant change on the flexural strength of Clearfil DC Core in the whole immersion process(P > 0.05). The flexural modulus of LuxaCore Smartmix Dual showed a decreased trend in the whole immersion process, but it showed that there was no significant change during the first 2 weeks(P > 0.05), while a significant decrease occurred after 3 weeks and 1 month (P < 0.05). Compared with original specimens, the flexural modulus of ParaCore and Clearfil DC Core showed a decreased trend, but this change was not significant (P > 0.05); the flexural properties of three composite resins showed a fluctuant decreased trend along with weight changes increased. To sum up, Clearfil DC Core showed the best water resistance among three composite resins.

Objective To analyze the comparability of potassium results detected by blood-gas analyzer and dry chemical analy-zer .Methods Dry chemical detection system was used as comparison method (X) ,and blood gas analyzer systems was used as the experimental method (Y ) .Arterial blood samples collected from ICU newborns were detected respectively by the two methods .If SE of medical decision level was less than or equal to 1/2 TEa decided by CLIA′88 ,the results was acceptable .Results There was a linear correlation in potassium concentrations of the two detection systems(r=0 .976 ,P<0 .01) .But among three medical decision levels ,the SE of the two detection systems only acceptable at 3 .0 mmol/L .Conclusion The potassium concentration of blood gas analyzer is lower than that of dry chemistry analyzer .The potassium concentration of dry chemistry analyzer should be taken as a reference to diagnose and clinical treatment .

Objective To explore the protective efficacy of antioxidants (vitamin E and Ginkgo biloba extract) on the peripheral nerve damages induced by antiepileptic drugs (AEDs). Methods Adult (2-month old) and infant SD rats (7-day old) were respectively treated with AEDs (phenytoin,or phenobarbital,or clonazepam) alone,or simultaneously with vitamin E or Ginkgo biloba extract for 4 weeks. All the rats were sacrificed,sciatic nerves and serum were collected. The sciatic nerves were analyzed by histologically for their pathological changes,and serum and homogenate of sciatic nerves were investigated for their total antioxidative capacity and antioxidant enzyme activity. Results Incidence of pathological abnormalities of teased fibers significantly reduced in all rats treated with AEDs and antioxidants (P