Objective:To explore the effect of Shenfu Injection (SFI) on expression of Heme oxygenase-1 (HO-1) and iNOS (inducible nitric oxide synthase) in renal failure rats induced by intestinal ischemia-reperfusion (IR) and its possible mechanism. Methods:The model of intestinal ischemia-reperfusion was induced by clamping superior mesenteric artery for one hour and then releasing the arterial clamp for six hours. Wistar rats were randomized into three groups:IR+normal saline group,IR+SFI group and control group (C group). The serum creatinine and blood urea nitrogen were observed respectively. Expression of HO-1 and iNOS in rat kidney tissue was detected by immunohistochemitry and morphometry computer image analysis. The histological change of kidney was observed under light microscope. Results:①Compared with C group,expression of HO-1 and iNOS increased markedly in IR+ normal saline group (P

Objective To study the chemical constitutents of Fomes officinalis and their inhibiting (effect) on thrombin. Methods Compounds were separated by column chromatography with silica gel and polyamide, whose structures were elucidated by spectral analysis and chemical evidence. Results Seven compounds were isolated from the chloroform extract. Their structures were identified as: 3-keto-dehydrosulfurenic (Ⅰ), dehydroeburicoic acid (Ⅱ), eburicoic acid (Ⅲ), sulphurenic acid (Ⅳ), dehydrosulphurenic acid (Ⅴ), dehydroeburiconic acid (Ⅵ), versisponic acid D (Ⅶ). The inhibitory rate of compound Ⅶ on thrombin was 45.36% but others were not obvious. Conclusion Compounds Ⅴ, Ⅶ are isolated from the fungus for the first time. Compound Ⅶ is effective to anti-thrombin at higher concentration, while the remainders are not obvious.

The training of professional postgraduates is one mode of medical postgraduate training,which more emphasizes the cultivation of clinical practice and ability.The problems existing in the training of professional degree postgraduates in dermatology are analyzed in this article,such as weak foundation of scientific research foundation,lack of supervision and evaluation,and the challenges from dermatology characteristics.The solutions including the training objectives,project design,the optimization of teaching process and evaluation,the training of comprehensive ability will be discussed in this article.The purpose is to improve the quality of training,to give some advice for providing high quality professional degree postgraduates.

Objective To establish a rapid and sensitive method for detection of urinary protein.Methods In B-R buffer solution with pH 4.2,the signals of resonance light scattering by Poncesu S (PS) combined with protein in ?ex=?em=306nm were detected.Results There was a linear relation between the scattering signals of resonance light,and the protein concentration ranged from 0 to-1500 mg/l. The regression equation was ?I=2.24c-0.41,r=0.999 and the detection limit was 1.48 mg/l. The average recovery was 102.8% and the between-and within-subject coefficients of variation were 2.09% and 5.40% respectively.No significant difference was found compared with the method of PS.Conclusion The established method in this study is a simple,rapid and high sensitive method for determination of urinary protein.

Objective To investigate the level of human cytomegalovirus(HCMV)specific CD8+ T lymphoeytes in peripheral blood and the immune reaponae of HCMV reactivation after kidney transplantation.Methods Thirty-eight HCMV seropesitive HLA-A*0201 kidney transplant recipients(9 with HCMV infection and 29 without HCMV infection)and 54 healthy individuals were enrolled.The levels of total HCMV specific CD8+ T cells were measured using HLA-A2 pentamer folded with HCMV-peptide NLVPMVATV.The levels of IFN-γ secreting CD8+ T cells were measured by intracelluhr IEN-γ staining pulsed with the same peptide.Results The median levels of pentamer stained CD8+ T cells were 1.19%(0-19.42%),1.20%(0-18.40%)and 3.2%(0.51%-18.90%)in healthy group,negative HCMV group and positive HCMV group(H=5.34,P＞0.05),respectively.The median levels of IFN-γ secreting CD8+ T cells were 0.72%(0-0.70%),0.47%(0-5.61%)and 0.67%(0.07%-4.00%),respectively(H=0.58,P＞0.05).However,the mean proportions of IFN-γ secreting pentamer stained T cells relative to total HCMV specifc CIL were(60.18±19.16)%,(39.19±17.22)% and(20.02±13.26)%,respectively.There were significant differences among the groups(P＜0.01).Condusiorm There was no significant difference of levels of HCMV specific CD8+ T lymphocytes in peripheral blood between the kidney transplant recipients and healthy individuals.However,the proportion of HCMV-specific IFN-γ producing CD8+ T cells in pentamer stained cells was reduced in the kidney transplant recipients especially in those with active HCMV infection,which may contribute to the inability to control HCMV reactivation.

Objective To evaluate the role of by NO in reduction of myocardial ischemia-reperfusion (IR)injury by ginsenoside Rb1 preconditioning in diabetic rats. Methods Forty healthy adult male SD rats weighing 220-280 g were used in this study. Diabetes mellitus was induced by intraperitoneal streptozotocin 65 mg/kg and confirmed by fasting blood glucose ＞ 16.7 mmol/L. The animals were randomly divided into 4 groups ( n = 10each): sham operation group (group S), group IR, ginsenoside Rb1 group (group R) and L-NAME + ginsenoside Rb1 group (group LR). IR was produced by occlusion of the anterior descending branch of left coronary artery (LAD) for 30 min followed by 120 min reperfusion in group IR, R and LR. In group S, LAD was exposed but not occluded. In group LR, L-NAME 10 mg/kg was injected iv 25 min before ischemia. In group R and LR, ginsenoside Rb1 40 mg/kg was injected iv 10 min before ischemia. In group S and IR, eaqual volume of normal saline was injected instead of ginsenoside Rb1. The blood sample was taken from carotid artery at 120 min of reperfusion for determination of serum activities of creatine kinase (CK) and lactate dehydrogenase (LDH). Then the animals were sacrificed and myocadial tissues were obtained for determination of infarct size, endothelial nitric oxide synthase (eNOS) expression, MDA and NO contents, SOD activity and microscopic examination. Results The serum activities of CK and LDH were significantly increased and the myocardial infarct size was enlarged in group IR, R and LR, and eNOS expression was significantly down-regulated, MDA content was increased, and SOD activity and NO content was significantly decreased in group IR and LR compared with group S ( P ＜ 0.05). The serum activities of CK and LDH, and MDA content were significantly decreased, the myocardial infarct size was reduced, the expression of eNOS was up-regulated and the activity of SOD was increased in group R compared with group IR and LR ( P ＜ 0.05). There was no significant difference in the indices mentioned above between group IR and LR ( P＞ 0.05). Conclusion Ginsenoside Rb1 preconditioning can attenuate myocardial IR injury in diabetic rats via activation of eNOS, increase in NO production, and inhibition of the lipid peroxidation reaction.

Objective To investigate the analgesic efficacy and spinal neurotoxicity of intrathecal (IT) different doses of dexmedetomidine in rats. Methods Sixty male SD rats weighing 180-220 g were randomly divided into 5 groups ( n = 12 each): groupnormal control (group C); group IT normal saline (group N); different doses of dexmedetomidine groups received IT dexmedetomidine 0.75, 1.50 and 3.00 μg/kg respectively (groups D1.3). Paw withdrawal threshold to mechanical stimulation (PWMT)with yon Frey filaments and tail flick latency (TFL) to a thermal nociceptive stimulus were measured before (To, baseline) and at 30 or60 rin after IT dexmedetomidine or normal saline administration (T1, T2 ) and the percentage of the maximum possible effect ( MPE ) was calculated. Lumbar segment of the spinal cord ( L4-6 ) was removed for microscopic examination and determination of c-Fos expression (by immuno-histochemistry) at 7, 24 and 48 h after IT dexmedetomidine or normal saline administration. Results PWMT, TFL and the percentage of MPE were significantly increased after IT dexmedetomidine as compared with the baseline values at T0 in groups D1-3 ( P ＜ 0.05). PWMT was significantly higher at T1 and TFL and the percentage of MPE were higher at T2 in groups D1-3 than in groups C and N,and in group D3 than in groups D1,2 ( P ＜ 0.05). At 7,24 h after IT dexmedetomidine c-Fos protein expression was significantly higher in group D3 than in groups C and N( P ＜ 0.05). There was no significant difference in c-Fos expression at 48 h after IT dexmedetomidine between group D3 and groups C and N ( P ＞ 0.05 ). At 24 h after IT dexmedetomidine c-Fos protein expression was significantly higher in group D3 than in other 4 groups( P ＜ 0.05). Slight spinal cord injury was observed at 24 h after IT dexmedetomidine in group D3. Conclusion IT dexmedetomidine has antinociceptive effect. High dose dexmedetomidine IT can produce transient reversible toxicity to the spinal cord.

Objective To know prevalence of depression, its coping strategies and risk factors among infertile women with in vitro fertilization and embryo transfer (IVF-ET) or intracytoplasmic sperm injection. Methods Infertile women with IVF-ET were interviewed with center for epidemiologic studies short depression scale (CES-D10) and an abbreviated version of the COPE inventory (brief COPE), and their basal sex hormone values and estradiol ( E2 ) on the day of human chorionic gonadotropin (HCG) administration were monitored, as well as the number of oocytes yielded was counted. Results Prevalence of depression was 20.6% in infertile women, higher in those with more than eight years of marriage, infertility for more than six years, and receiving treatment for at least three years. Risk of depression among the women of infertility with monthly family income less than 3000 yuan was 14 times as those with more than 3000 yuan and risk of depression among them due to the factors of their husbands was 2/5 as those not due to men's. Depressive symptoms in the women increased with increasing of their basal follicle stimulating hormone (FSH) level, counted egg number and scores of denial items. Occurrence of their depressive symptoms decreased with higher basal E2 levels, and scores of substance use and humor. Conclusions Some infertile women with IVF-ET do have depression and preventive intervention should be aimed at related factors for depression to improve their psychological health.

Objective To evaluate the effects of ischemic postconditioning on brain injury induced by myocardial ischemia-reperfusion (I/R) in diabetic rats.Methods Diabetes mellitus was induced by intraperitoneal streptozotocin 60 mg/kg and confirmed by blood glucose level ＞ 16.7 mmol/L.Thirty male Sprague-Dawley rats,weighing 220-280 g,in which diabetes mellitus was successfully induced,were randomly allocated into 3 groups (n =10 each) using a random number table:group sham operation (group S),group I/R and group ischemic postconditioning (group P).Myocardial I/R was induced by occlusion of the anterior descending branch of the left coronary artery in I/R and P groups.Group P received 3 cycles of 10 s reperfusion followed by 10 s ischemia at the end of myocardial ischemia.The rats were sacrificed at 120 min of reperfusion and the brains were removed for microscopic examination and for determination of cell apoptosis (by TUNEL) and expression of interleukin-6 (IL-6),IL-8,IL-10,glycogen synthase kinase-3 beta (GSK-3β) and phosphorylated GSK-3β (pGSK-3β) (by immuno-histochemistry).Apoptotic index was calculated.Results Compared with group S,apoptotic index was significantly increased,IL-6 and IL-8 expression was up-regulated,and IL-10 and pGSK-3β expression was downregulated in I/R and P groups (P ＜ 0.01).Compared with group I/R,apoptotic index was significantly decreased,IL-6 and IL-8 expression was down-regulated,and IL-10 and pGSK-3β expression was up-regulated in group P (P＜0.01).There was no significant difference in GSK-3β expression among the 3 groups (P ＞ 0.05).The pathologic changes were significantly attenuated in group P as compared with group I/R.Conclusion Ischemic postconditioning can attenuate brain injury induced by myocardial I/R in diabetic rats,and inhition of activity of GSK-3β may be involved in the mechanism.

Objective To evaluate the changes in the expression of DJ-1 protein during myocardial ischemia-reperfusion (I/R) in diabetic rats.Methods Fifty male Sprague-Dawley rats,weighing 220-280 g,were used in this study.Type 1 diabetes mellitus was induced by intraperitoneal streptozotocin 65 mg/kg and confirmed by fasting blood glucose ＞ 16.7 mmol/L.Forty animals with type 1 diabetes mellitus were randomly divided into 3 groups:diabetes group (group D,n =10),diabetic sham operation group (group DS,n =15) and diabetic I/R group (group DIR,n =15).Another 10 non-diabetic rats in which citrate buffer 6 ml/kg was injected intraperitoneally were served as control group (group C).Myocardial I/R was produced by occlusion of the anterior descending branch of left coronary artery for 30 min followed by 120 min reperfusion in group I/R.At 120 min of reperfusion,5 rats were sacrificed and myocardial specimens were c(on)tained for determination of infarct size in groups DS and DIR,and 10 rats were sacrificed and myocardial specimens were obtained for microscopic examination and for determination of cell apoptosis,malondialdehyde (MDA) content,superoxide dismutase (SOD) activity and expression of DJ-1 and phosphatase and tensin homologue (PTEN) protein.Apoptotic index (AI) was calculated.Linear correlation between the expression of DJ-1 protein and MDA content,SOD activity,AI and expression of PTEN protein was analyzed.Results Compared with group DS,the myocardial infract size was significantly increased in group DIR (P ＜ 0.05).Compared with group C,MDA content and AI were significantly increased,SOD activity was decreased,the expression of DJ-1 was down-regulated,and the expression of PTEN protein was up-regulated in groups D,DS and DIR (P ＜ 0.05).Compared with groups D and DS,MDA content and AI were significantly increased,SOD activity was decreased,the expression of DJ-1 was down-regulated,and the expression of PTEN protein was up-regulated in group DIR (P ＜ 0.05).There was no significant difference in the parameters mentioned above between groups D and DS (P ＞ 0.05).There was linear correlation between the expression of DJ-1 protein and MDA content,SOD activity,AI and expression of PTEN protein and the correlation coefficients (r) were-0.734,0.593,-0.818,and-0.812 in turn.Conclusion Down-regulation of DJ-1 protein expression is involved in myocardial I/R injury in diabetic rats via decreasing anti-oxidative stress responses and upregulating PTEN protein expression.