Objective To investigate clinical efficacy of different ventilator parameters on acute left heart failure.Methods One hundred and nineteen patients with acute left heart failure were randomly divided into A,B,C,D group.Patients in A,B,C,D groups were treated separately with higher air pressure,high pressure,medium pressure or low pressure respectively.In each group,clinical efficacy,heart rate (HR),arterial partial pressure of oxygen (PaO2),pulse oxygen saturation (SpO2),partial pressure of carbon dioxide (PaCO2) and pH were measured.Results There were significant differences among the four groups in terms of HR,PaO2,SpO2,PaCO2 and pH (F =32.21,29.46,12.34,36.47,18.38 ; P ＜ 0.05).Compared with that in A,C and D group,the levels of HR,PaO2,SpO2,PaCO2 and pH in B group were significant difference (P ＜ 0.05).Meanwhile those indices in B group were difference among before and after treatment (t =12.25,13.46,8.75,9.83,2.58 ;P ＜ 0.05).The efficacy rates of four groups were significant different (x2 =0.97,P =0.012),and in B group was 93.1％,higher than that of other 3 groups(71.0％,65.6％,51.8％ ;P ＜0.05).Condusion The ventilator parameters(10-15 cmH2O,55％-75％ FiO2 at beginning and later revised the FiO2 to 30％-40％) was proved to be worthy in treating acute left heart failure.

Objective To investigate the incidence of healthcare-associated infection(HAI)in hospitalized patients≥65 years at a hospital in Hunan Province.Methods Data of patients with HAI in this hospital in 201 1—2013 were classified and analyzed statistically.Results A total of 47 626 patients were investigated,1 068 cases of HAI oc-curred,all cases were single site infection,incidence and case rate of HAI were both 2.24% ,incidence in patients aged <65 years (2-65 years old)was 0.98% (234/23 998),and ≥65 years was 3.53% (834/23 628),difference was significant between two groups (χ2= 354.44,P<0.001). HAI rate in patients aged <65,65~,70~,75~, 80~,85~,and ≥90 years was 0.98% ,1.59% ,1.28% ,2.77% ,5.20% ,6.93% ,and 9.43% respectively. The major infection site was lower respiratory tract (59.95% ,n= 500),the main detected pathogens were Pseudo-monasaeruginosa (19.43% )and Escherichia coil (18.72% ).Conclusion The incidence of HAI in the elderly patients increased with age increasing,the main infection site is lower respiratory tract.

AIM: To study the inhibitory effect of aminoguanidine(AG) on periodontitis. METHODS: Experimental periodontitis was produced in rats by a ligature of braided silk, the NO concentration was assayed by spectrophototometry, the attachment loss of periodontium was measured by using technology for image and graphics engineering research and the histopathologic changes of periodontium were also examined under a light microscope. RESULTS: The NO concentration significantly decreased after AG treatment for 4 weeks, and the inflammation and the damages of periodontium was also reduced significantly. CONCLUSION: The inhibition of iNOS by AG may be a potential therapeutic strategy for the treatment of periodontitis.

0.05). The percents of high to 35 ℃ and of low to 10 ℃ of day average temperatures did not possess significance. There were significant differences among the temperatures in spring, summer and autumn. As for the relative humidity and rainfall amount from 2000 to 2005, those in 2000 were the maximum and the former was significant(P

Objective To evaluate the role of membrane-bound complement regulatory protein expression in spinal cord dorsal horn in the development of neuropathic pain (NP) in rats.Methods Forty-eight male Sprague-Dawley rats,weighing 200-250 g,in which intrathecal catheters were successfully implanted without complications,were randomly divided into 4 groups (n =12 each):sham operation group (group S),group NP,normal saline group (group NS) and minocycline group (group M).NP was induced by chronic constrictive injury of the sciatic nerve in NP,NS and M groups.Minocycline 50 μg was injected intrathecally once a day for 7 consecutive days starting from 1 day before ligation of the sciatic nerve in M group,while the equal volume of normal saline was given in stead of minocycline in NS group.Mechanical pain threshold and thermal pain threshold were measured at 1 day before ligation of the sciatic nerve (baseline,T0) and 1,3,7 days after ligation of the sciatic nerve (T1-3).Then the rats were sacrificed at T3 and the lumbar segment (L4,5) of spinal cord was removed for determination of the expression of CD46,CD55,CD59 protein and mRNA in the dorsal horn of spinal cord by Western-blot and RT-PCR,respectively.Results Compared with S group,mechanical pain threshold and thermal pain threshold were significantly decreased at T1-3 and the expression of CD46,CD55 and CD59 protein and RNA was down-regulated at T3 in NP,NS and M groups (P ＜ 0.05).Compared with groups NS and NP,mechanical pain threshold and thermal pain threshold were significantly increased at T2.3 and the expression of CD46,CD55 and CD59 protein and RNA was up-regulated at T3 in M group (P ＜ 0.05).Conclusion The down-regulated expression of membrane-bound complement regulatory proteins in spinal cord dorsal horn and abnormal activation of the complement are involved in the development of NP in rats.

BACKGROUND: Reports regarding adipose-derived stern cells (ADSCs) differentiation into dopaminergic (DN) neurons are few in addition, there is not experimental evidence of the effect of ADSCs on maintaining the survival of DN neurons.OBJECTIVE: To investigate the effect of glial cell-derived neurokophic factor (GDNF)-modified adipose-derived stem cells on survival of DN neurons under co-cultured condition.DESIGN, TIME AND SETrlNG: The in vitro cytology experiment was conducted at the Institute of Otolaryngology-Head and Neck Surgery and Key Laboratory of Zoonoses of Ministry of Education between March and December 2007.MATERIALS: Wistar rats with 3-weeks-old, or 14 days of pregnancy were provided by Norman Bethune College of Medicine, Jilin University.METHODS: The GDNF recombinant adenovirus was constructed by using pAdTrackCMV and pAdEasy-1 system. DN neurons were obtained from the rostral mesencaphalic tegmentum of Wistar rat embryos by using trypsin and collagenase method. ADSCs isolated from rat inguinal fat pads were digested with collagenase Ⅱ, cultured and passaged in vitro. When the cells reached 60% cenfluency at the 3rd passage, cells were transfectad with 1×109vp/mL of Ad-GDNF for 1 hour and then transferred into growth medium for another 24 hours, and GDNF level in cell supematant was detected by ELISA assay. Meanwhile, the co-cultured of ADSCs and DN neurons were carried out for following 7 days. With GFP-modified ADSCs was served as a control group.MAIN OUTCOME MEASURES: The effect of co-cultured condition on the survival of DN neurons, as well as the differentiation of GDNF-modified ADSCs was detected by immunofluorescence staining.RESULTS: GDNF appeared in ADSCs supematant at 24 hours after Ad-GDNF transfection and reached a peak at 72 hours.There was approximately 80% GFP-positive labeled in ADSCs. The tyrosinase hydroxylase staining results demonstrated that the rate of survival DN neurons were significantly increased than in DA neurons cultured alone, co-cultured group of GFP-modified ADSCs and GDNF-modified ADSCs groups (55%, 15%, 25%, P < 0.01). However, there were no co-expressing TH and GFP positive cells appeared at 7 days of co-culture, which indicated that the co-cultured condition was not available to ADSCs differentiation.CONCLUSION: The co-cultured of GDNF modified ADSCs and DN neurons can promote the survival and growth of cultured DN neurons, however, it can not induce ADSCs differentiate into DN neurons.

10.3969/j.issn.2095-4344.2013.24.007

Objective: To investigate the acupuncture effect for post-apoplectic spasticity.Methods: Modified Ashworth spasticity rating, Brunnstrom grades, Barthel ADL (Activity of Daily Living) indexes were employed to assess the spasticity, motor function and activities of daily living (ADL), and thus observe the effect of combined scalp and body acupuncture for post-apoplectic hemiplegic patients. Results: Combined scalp and body acupuncture can obtain significantly better effects than body acupuncture alone in relieving spasticity and improving the patients' motor function and ADL (P＜0.01). Conclusion: Combined scalp and body acupuncture has a distinct advantage in relieving spasticity and can improve the patients' motor function and ADL.

Objective:To research the anti-dysmenorrhea effect of different extracts of Rupixiao granules. Methods:The anti-dys-menorrhea effect of different extracts of Rupixiao granules was studied by writhing test induced by oxytocin in mice. Results:Compared with the model group, the extracts of Rupixiao granules could reduce the writhing times induced by oxytocin significantly (P<0. 05,P<0. 01 or P<0. 001), and the water-soluble extract showed the best effect (P<0. 001) without significant difference when compared with the positive control group(P>0. 05). Conclusion:The water-soluble parts of Rupixiao granules have significant anti-dysmenor-rhea effect.

AIM To observe the effect of deprot einised calf blood extract(DCBE) on experimental gastric ulcer in rats. METHODS Ulcer model of SD rats induced by acetic acid, half male and female, were divided into three group s randomly, the control group and the two treatment group DCBE (30 mg?kg -1 or 60 mg?kg -1 ). Following the two and four weeks of experiment, the gastric acid degr ee, activity of pepsin, area of ulcer, the number of tela leukocyte and activity of myeloperoxidase (MPO) were observed. RESULTS Gastric acid deg ree and activity of pepsin showed no significant difference between treatment gr oup and control group, either in DCBE 30 mg?kg -1 or in 60 mg?kg -1 , but area of ulcer, the number of tela leukocyte and the activity of myeloperoxi dase (MPO) showed a significant difference between treatment group and control group and the e ffects of 60 mg?kg -1 group were significantly decreased as compared with that of 30 mg?kg -1 group. CONCLUSION DCBE can significantl y promote tissue healing of gastric ulcer induced by acetic acid in SD rats.