Objevtive To evaluate the efficacy and safety of intensive pulse light (IPL) on treating the telangiectasis and dermal atrophy due to corticosteroid-dependent dermatitis.Methods We applied the IPL on 13 patients who had telangiectasis and dermal atrophy caused by corticosteroid-dependent dermatitis every three to four weeks.The treatment lasted three to eight times.The patients's skin types were Fitzpatrick Ⅲ-V and they had had corticosteroid therapy from 15 months to 13 years.Results To telangiectasis,3 patients had excellent effect afterwards;7 patients achieved fair good effect;Another patients also achieved improvement;2 cases had no positive effect;The total effective rate reached 76.92%.10 patients of dermal atrophy among the total 13 had improvement of the thickness of dermis.Conclusion Intensive pulse light can improve the telangiectasis and dermal atrophy of corticosteroid-dependent dermatitis.It needs less recovery time with fewer side effects and therefore IPL is an effective method for the Iesions.

Objective To explore the effect of aging on nonspatial learning and memory ability or recognitive memory ability in C57BL/6 mice.Method The C57BL /6 mice were used and novel-object recognition task was used to test the recognition memory ability.Results There was hardly exploring behavior in half of mice in the novel-object recognition task.Conclusion The novel-object recognition task is valueless to evaluate the effect of age on the nonspatial learning and memory ability in the C57BL/6 mice.

Objective To explore whether there is the decline of learning and memory ability in C57BL/6 mice in radial six-arm water maze (RAWM) task. Methods The RAWM task was used to test the spatial abilities of learning and memory. Results All of old mice showed the decline of spatial learning and memory ability in the RAWM task. Conclusion RAWM task is excellent spatial learning and memory task and is sensitive to measure the age-related decline of learning and memory ability in C57BL/6 mice.

Objective To compare the clinical efficacy of programmed intermittent epidural bollus (PIEB)+patient controlled epidural analgesia (PCEA)and continuous epidural infusion (CEI)+PCEA for labor analgesia.Methods One hundred nulliparous parturients with cervical dilation of 2-3 cm were randomly assigned to PIEB group or CEI group for labor,with 100 parturients in each group.The background infusion in PIEB group delivered 8 ml bolus at a rate of 6 ml/min per 1 hour, in group CEI at 8 ml/h.Blood pressure,VAS score and modified Bromage score before labor anesthe-sia (T0 ),10 min after labor anesthesia (T1 ),30 min after labor anesthesia (T2 ),1 h after labor an-esthesia (T3 ),2 h after labor anesthesia (T4 ),the uterus opening to the full extent (T5 ),childbirth (T6 ),1 h after childbirth (T7 ),proportion of PCEA request,hourly ropivacaine and sufentanil con-sumption,uterine contraction,fetal heart,total delivery time,analgesic time,delivery mode,number of cases using oxytocin,adverse reactions,neonatal Apgar score,maternal satisfaction score were ob-served.Results The VAS score of PIEB group was significantly lower than that of CEI group at T4-T6 (P <0.01).Compared with the CEI group,protortion of PCEA request,the dosage of drug was de-creased obviously in group PIEB (P <0.05),the maternal satisfaction of PIEB group was significantly higher than that of CEI group (P <0.05).There was no significant difference in the blood pressure, duration and interval time of uterine contraction,fetal heart,total delivery time,analgesic time,deliv-ery mode,number of cases using oxytocin,adverse reactions,neonatal Apgar score and weight among two groups.Conclusion Compared with the CEI+PCEA,the need of PCEA and the dosage of drug was decreased obviously,the VAS score was significantly lower,the maternal satisfaction was signifi-cantly higher and adverse reactions did not increase in the PIEB+PCEA.

Objective To analyse the effect of different blood purification methods on serum cardiac troponinc T (cTnT), cardiac troponinⅠ(cTnI), β2-microglobulin (β2-MG) and interleukin-6 (IL-6) levels in patients with maintenance hemodialysis.Methods 60 uremic patients treated with maintenance hemodialysis were collected.All patients were randomly divided into conventional hemodialysis group (HD group) , hemodialysis and hemoperfusion group (HD+HP group) and hemodiafiltration group (HDF group) , 20 cases in each group.Corresponding dialysis treatment was given, then the serum levels of cTnT, cTnI,β2-MG and IL-6 were detected in all patients post-treatment.Results After treatment, the serum cTnT, cTnI,β2-MG and IL-6 levels in HD+HP group and HDF group were lower than those in HD group (P<0.05).Conclusions Different blood purification methods have different effects on serum cTnT, cTnI, β2-MG and IL-6 levels in patients with maintenance hemodialysis, HDF and HD +HP have better scavenging effect, which has the guiding significance to clinical application.

Objective To investigate the role of spinal hyperpolarization-activated cyclic nucleotide-gated (HCN) channels in dexmedetomidine-produced antinociceptic effect.Methods In vivo experiment Thirty wild type C57BL/6J mice and 30 HCN1 gene knockout (HCN1-/-) mice, aged 2-3 months, weighing 19-25 g, were randomly divided into 5 groups (n=6 each) using a random number table: control group (group C), and dexmedetomidine 10, 20, 30 and 40 μg/kg groups (Dex10, Dex20,Dex30 and Dex40 groups).In Dex10, Dex20, Dex30 and Dex40 groups, dexmedetomidine 10, 20, 30 and 40 μg/kg were intraperitoneally injected, respectively.The equal volume of normal saline was given in group C.Before dexmedetomidine administration, and at 15, 30, 45, 60, 75, 90, 105 and 120 min after dexmedetomidine administration, tail flick latency to a thermal nociceptive stimulus was measured, and the percentage of the maximum possible effect (MPE％) was calculated.In vitro experiment HCN1 and HCN2 plasmids and green fluorescent plasmids were transfected into HEK293 cells with liposome 2000.At 24-48 h after transfection, HCN1 and HCN2 channel currents were recorded using whole-cell patch clamp technique.HCN channel currents were recorded as baseline value after rupture of membrane.HEK293 cells were perfused with the extracellular fluid containing different concentrations of dexmedetomidine (0.1, 1.0 or 10.0 μmol/L).After the cells were perfused with dexmedetomidine 0.1 μmol/L for 5 min, HCN currents were recorded.The inhibition rate of currents were calculated.After washout, HCN currents were recorded after the cells were perfused with the next concentration for 5 min.The half-maximal activation voltage (V1/2) of HCN channels and the curve slope were recorded.The difference in V1/2 before and after administration (△V1/2) were calculated.Results Compared with group C, MPE％ was significantly increased in Dex10 group-Dex40 group of wild type and HCN1-/-mice (P＜0.05).Compared with Dex30 and Dex40 groups of wild type mice, MPE％ was significantly decreased in Dex30 and Dex40 groups of HCN1-/-mice (P＜0.05).There was no significant difference in MPE％ between Dex10 group and Dex20 group of wild type and HCN1-/-mice (P＞0.05).Compared with the baseline value, the currents and V1/2 of HCN1 and HCN2 channels in HEK293 cells were significantly decreased when the cells were perfused with dexmedetomidine 0.1, 1.0 and 10.0 μmol/L (P＜0.05).Compared with the value when the cells were perfused with dexmedetomidine 0.1 μmol/L, the currents and V1/2 of HCN1 and HCN2 channels in HEK293 cells were significantly decreased, and inhibition rate of currents and △ V1/2were increased when perfused with dexmedetomidine 1.0 and 10.0 μmol/L (P＜0.05).Compared with the value when the cells were perfused with dexmedetomidine 1.0 μmol/L, the currents and V1/2 of HCN1 and HCN2 channels in HEK293 cells were significantly decreased, and inhibition rate of currents and △ V1/2were increased when perfused with dexmedetomidine 10.0 μmol/L (P＜0.05).There was no significant difference in the activation curve slope of HCN1 and HCN2 channel currents in HEK293 cells when the cells were perfused with dexmedetomidine 0.1, 1.0 and 10.0 μmol/L (P＞0.05).Conclusion Dexmedetomidine-produced antinociceptic effect is likely related to the inhibition of spinal HCN channel opening.

Objective:Animal models were set up to explore the best preventative intra-nasal administration of interleukin 27 (IL-27)to diminish allergic airway inflammation of asthma and the related molecular mechanisms. Methods:Ninety-six female C57/6J mice were randomly divided into four groups,a group of the control group,a group of asthma group,and two groups of the prevention group. Based on being sensitizing and challenging with Ovalbumin ( OVA ) in the asthma model, two kinds of IL-27 administration asthma animal models were set up,one of which was low-dose-multiple preventive administration before OVA sensitization,one was low-dose-multiple preventive administration after OVA sensitization but before OVA challenge. Sacrificed the mice after challenging and analyzed the IL-5 and IL-13 levels in supernatant of Broncho alveolar lavage fluid( BAL) using ELISA;and HE stain and inflammation score were done for the lungs. Sacrificed the mice before challenging and used the lungs to analyze the level of total signal transducer and activator of transcription-1(STAT1) protein and phos-STAT1 based on the method of Western blot. Results: In low-dose-multiple administration before sensitization preventions group,IL-27 inhibits the secretion of IL-5 and IL-13(P<0. 05) and inflammation around bronchial and vascular obviously, and the inflammation score was lower than asthma group ( P<0. 05 ) , while another group has no significant effects ( P>0. 05 ) . The phosphorylation of STAT1 was impaired in mice after OVA sensitization, and preventative administration of IL-27 before sensitization could reverse the impairment of STAT1, whereas another group had no obviously changes. Conclusion:Preventative administration of IL-27 before sensitization can attenuate the airway inflammation in the mouse asthma model via reversing the phosphorylation of STAT1,while the mice which has been sensitized resisting the inhibition of IL-27 due to the impairment of the phosphorylation of STAT1 and already committed Th2-CD4+T cells existed in sensitization-mice airway might be the reason for such IL-27 resistance.

BACKGROUND: Levodopa substitutive therapy is essential and effective method for PD for a long time, but it can not delay the course of PD. Side effect is more and more and severe, for taking levodopa long term. It is benefit to patients to postpone the usage of levodopa or decrease the dosage of it.OBJECTIVE: To systematically investigate the curative effect of the selfmade Bushenpingchan formula combined with madopar on pathogenetic condition of PD patients after onset.DESIGN: Randomized controlled observation.SETTING: Senile Disease Research Center, Xuanwu Hospital, Capital University of Medical Sciences.PARTICIPANTS: Seventy patients diagnosed as having PD were recruited from the Xiyuan Hospital of Chinese Academy of Traditional Chinese Medicine between December 1999 and May 2002. Inclusive criteria: The patients must be diagnosed as PD finally; ②be at 1.5-4 grade of modified Hoehn & Yahr measuring scale; ③less than 80 years old; ④The Traditional Chinese Medicine (TCM) diagnosis was deficiency of liver and kidney. Exclusive criteria: ①secondary PD; ②accompanying with other sever central nervous system diseases. ③patients with severe diseases of heart,lung, kidney or multi-viscera-failure; ④mental sickness patients; ⑤drug and alcohol abuse; ⑥severe adverse effect.METHODS: Totally 70 patients were divided into two groups based on the proportion of one to one: There were 35 patients in treatment group containing 22 males and 13 females. The average age was (67.9±16.5)years. There were 35 patients in control group including 25 males and 10females. The average age was (65.5±16.5) years. There was no significant difference in their general condition. Patients in the control group received 62.5-500 mg madopar (250 mg in each pill), 2-4 times a day (to change the dose according to patients' condition). The patients in the treatment group were given with 62.5-500 mg madopar (250 mg in each pill), 2-4times a day orally and 200 mL self-made Bushenpingchan formula (twice a day) in addition, which was composed of 20 g tuber fleeceflower root, 1 g hairy deerhorn, 10 g tall gastrodia tuber, 15 g gambirplant, 12 g Chinese thorowax root, 15 g twolobed officinal magnolia bark, twice a day. The course of medication was 3 month in patients of the two groups. The patients were determined with unified Parkinson disease rating scale (UPDRS) before treatment and at weeks 2, 4, 8 and 12 after treatment, respectively. The symptoms in traditional Chinese medicine after treatment were measured. The dose of madopar before and after medication as well as the adverse effect were observed.MAIN OUTCOME MEASURES: Score of UPDRS before treatment and at weeks 2, 4, 8 and 12 after treatment in patients of the treatment group and control group; the dose of madopar before and after treatment and the adverse effect after treatment.RESULTS: Total effective rate was 69% and 51% in the treatment group and control group, respectively after treatment. There was no significant difference in therapeutic efficacy (x2=0.86, P=0.222 3). ①The score of UPDRS reduced significantly 8 weeks after treatment in the treatment group as compared with that before treatment (t=2.18 ,P ＜ 0.05). ②The daily dosage decreased in the patients of the treatment group after treatment as compared with that before treatment, which had significant difference (t =2.862 8,P ＜ 0.01 ). The daily dosage in the patients of control group had insignificant difference with that before treatment (t=2.320 3,P ＜ 0.01 ). ③There were 2 cases with lightly dry mouth, nausea, dizziness,which could relieve two weeks later in the treatment group; 5 patients with nausea and 2 patients with light dizziness in control group, which could relieve. The blood pressure had no significant change in the two groups before and after treatment.CONCLUSION: The Chinese medicine Bushenpingchan formula combined with western medicine can decrease the UPDRS score in PD patients,can improve the syndromes in Chinese medicine.

Objective:To investigate the effect of protein tyrosine kinase 6(PTK6) on TNF-α induced human airway epithelial barrier dysfunction and mechamism.Methods: After cultivating 16HBE cells in vitro,the recombined PTK6 and PTK6 siRNA was respectively transfected into the cells,with empty vector and scramble siRNA as control.The cells were incubated with exogenous TNF-α.Cell viability was detected by MTT assay.Cells TER and permeability were detected.ZO-1 and Occludin mRNA were analyzed by RT-PCR.PTK6,ZO-1,Occludin,p-ERK1/2,p-JNK1/2 and p-p38MAPK protein were assayed by Western blot.Results: TNF-α remarkably decreased ZO-1 and Occludin mRNA and protein and TER;increased cells permeability,as well as p-ERK1/2,p-JNK1/2 and p-p38 protein(P<0.05).Upregulation of PTK6 further decreased ZO-1 and Occludin mRNA and protein and TER,enhanced cells permeability and p-JNK1/2 and p-p38 protein(P<0.05),and downregulated PTK6 ,the changes of these indices were opposite(P<0.05).Whereas upregulation or downregulation of PTK6 had no effect on p-ERK1/2.Conclusion: Downregulation of PTK6 inhibits the phosphorylation of JNK1/2 and p38MAPK,thus improving TNF-α-induced human airway epithelial barrier dysfunction.

ObjectiveTo evaluate the efficacy and safety of high-dose irbesartan in the treatment of mild and moderate proteinuria in patients with chronic kidney disease (CKD).MethodsA single center,prospective,observational study was performed.A total of 96 subjects were given irbesartan 150 mg/d for 4 weeks.Twenty-six were divided into single-dose ( 150 mg/d) irbesartan group when their clinical efficacy were eligible for improvement criteria and 70 were divided into high-dose (300-600 mg/d) irbesartan group when there were no effect for single-dose treatment.Both groups received treatment for 48 weeks.Then 24-hour quantitative urine protein,systolic pressure,diastolic pressure,TC,LDL-C,plasma albumin,serum creatinine,blood urea nitrogen,blood uric acid,serum potassium and ALT were determined.Results The proteinuria level after treatment in the single-dose irbesartan group was decreased by 68.3％ with a statistically significant difference( P ＜0.001 ).In the high-dose group,the dose of irbesartan was increased based on the ineffectiveness when treating with single-dose,and the proteinuria was decreased by 63.4％ (P ＜0.001 ).Total effective rate in treating proteinuria in high-dose group was 72.9％ (51/70).Among the blood pressure sub-groups,the effective rates for the normal blood pressure group and hypertension group in treating proteinuria were 68.2％ and 76.9％ respectively ( P ＞ 0.05 ).However,in the normal blood pressure group and hypertension group,the proteinuria was decreased by 61.9％ and 67.5％ respectively after treatment (P＜0.001,P＜0.01),while without difference between the two groups (P＞0.05).The effective rates of high doses of 300,450 and 600 mg/d of irbesartan in treating proteinuria were 70.8％,63.6％ and 66.7％,respectively.The difference in effective rates of treating proteinuria among different doses had no statistical significance ( P ＞ 0.05 ).No obvious increase of SCr value before and after treatment in high-dose group ( P =0.583 ).The increasing level of serum potassium in high-dose group after treatment was higher than that in the single-dose group ( P ＜ 0.05 ),but the highest concentration (4.8 mmol/L) was still within the normal range.The blood pressure of 3 cases who quit observation because of low blood pressure in high-dose group returned to normal after drug withdrawal.ConclusionHigh-dose irbesartan can effectively lower the mild and moderate proteinuria in CKD patients with a good safety and tolerance and the efficacy is independent of lowering blood pressure.