Objective To compare the effect of Q-switch Nd ∶ YAG laser and intensive pulsed light on freckles.Methods 80 patients with freckles were divided into 2 groups randomly.One group of patients were treated with Q-switch Nd ∶ YAG 532 nm frequency-doubled laser,the interval was 8 weeks.The other group of patients were treated with 570 nm intensive pulsed light,the interval was 8 weeks.Results We used Mann-Whitney U test to compare the curative effect of the two groups (P ＜0.05),and the mean rank (34.00) of the Q-switch Nd;YAG laser treatment group was greater than that (47.00) of the intense pulsed light treatment group.Conclusions The curative effect of Q-switch Nd ∶ YAG laser is better than that of intensive pulsed light on freckles.

Objective To study the effect electrode placement of transcutaneous electrical nerve stimulation(TENS) on phantom limb pain in the postoperative phase of amputation.Methods 60 cases with phantom limb pain after amputation were equal divided into the treatment group and the control group.The electrodes were placed in the contralateral side similar as phantom limb in the treatment group,but were placed at the stumps in the control group.Results After two course of treatment,93.3% of the treatment group improved,and 76.7% very improved,which were better than those of the control group(P<0.05).Conclusion Electrode placement of TENS effects the different result of treating phantom limb pain.

Aim To study whetger there is positive express in situ hybridization of L-form DNA or Staphylococcus aureus in laryngocarcinoma cell. Methods 20 cases of expressnon of L-form DNA of Staphylococcus aureus in laryngocarcinoma karyon were detected with nucleic acid in situ hybridization. Results 60% cancer karyon, cytoplasm display positive signal of Staphylococcus aureus L-form DNA. Positive rate of Staphylococcus aureus L-form antigen is 75% with immunohischemical (s-p) stainipg. The rate is 70% with gram staining. Conclusion Staphylococcus aureus L-form DNA had get into laryngocarcinoma ceells, is great possibly to integrate into host ce11, and influence hyperplasis and canceration of cell from gene level. Staphylococcus aureus and its L-form infection have possibly close relation to happen and development of laryngocarcinoma.

Objective:To observe the dexmedetomidine by nasal drip on perioperative spinal surgery patients sedation and the effect of hemodynamic changes.Methods:90 ASA grade Ⅰ ～ Ⅲ,years 18 to 65,and in general anesthesia spinal surgery,and postoperative patients have to extube the endotracheal,were randomly divided into three groups:control group (group C),the dexmedetomidine 0.1 μg/kggroup (D1) and dexmedetomidine 1.5 μg/kggroup (D2),(n=30).Record into the OR (T0),before the induction (T1),1 min before intubation (T2),1 min after intubation (T3),start surgy (T4),began to stop general anesthetics (T5),1 min before extubation (T6),3 min after extubation (T7),and into the PACU (T8).The patient's heart rate (HR),mean arterial pressure (MAP),oxygen saturation (SPO2),finish operation from the general anesthetics toextube the endotracheal tube,stay time,patients in the postoperative recovery room Ramsay sedation scores.Results:Three groups of patients when T0 HR,MAP,SPO2,Ramsay sedation scores had no statistical difference (P≥ 0.05);Compared with group C,D1 and D2 group significantly lower each time point of HR,MAP,Ramsay sedation scores increase (P≤ 0.05),SPO2 no significant change (P≥ 0.05);Each time point compared with group D1,D2 group HR,MAP,significantly decreased,Ramsay sedation scores increase (P≤ 0.05),SPO2 no significant change (P≥ 0.05);D1 group HR,MAP,SPO2 at each time point,Ramsay sedation scores have no obvious difference (P≥ 0.05);D2 group HR,MAP,SPO2,Ramsay sedation scores significantly difference (P≥ 0.05).Group C T3,T4,T5,T6,T7 has each time point,T8 HR,MAP,up from T1,T2,Ramsay sedation scores were significantly improved (P≤ 0.05),SPO2 no significant change (P≥ 0.05).Conclusions:40 min before anesthesia induction dexmedetomidine by nasal drip can effectively inhibit intubation and extubation reaction,make the hemodynamic changes is more stable,and significantly reduce the incidence of patients with postoperative agitation.

AIM: To investigate the effect of homocysteine (HCY) on the induction of macrophage inflammatory protein-1? (MIP-1?) expression in cultured human umbilical vein endothelial cells (HUVECs). METHODS: After exposure of the cultured HUVECs to HCY at increasing concentrations (0.1, 0.5 and 1 mmol/L) for 8 h, the MIP-1? mRNA expression was determined by in situ hybridization using a MIP-1? cDNA probe, and the MIP-1? protein expression was measured by cell enzyme-linked immunosorbent assay (ELISA) using a goat anti-human MIP-1? monoclonal antibody. RESULTS: The in situ hybridization showed that cultured HUVECs were able to express MIP-1? mRNA at a low level that was purplish blue granules in cytoplasm. After exposure to HCY at the concentrations mentioned above, the expression of MIP-1? mRNA was significantly increased in a dose-dependent manner. Analysis of variance showed that there was significant difference between groups ( F= 606.38, P

AIM: To observe the expression of vascular cell adhesion molecule-1 (VCAM-1) in cultured human umbilical vein endothelial cells (HUVEC) by lipid peroxidation injury induced by exposure to diamide. METHODS: Expression of VCAM-1 mRNA and protein in HUVEC was determined by in situ hybridization and a cell enzyme-linked immunosorbent essay (cell ELISA), respectively. RESULTS: The HPIAS-1000 image analytic system in situ hybridization detected that the mean absorbance values in experiment groups(1, 5 and 10 ?mol/L diamide for 8 hours) were 0.147?0.013, 0.292?0.020 and 0.396?0.022, which were 1.91-fold, 3.79-fold and 5.14-fold as much as that of the control group (0.077?0.011), respectively. There was significant statistical difference between groups ( P

Objective To investigate the effect of Niaoduqing Particles on the microinflammatory state in patients with maintenance hemodialysis. Methods Totally 240 patients with hemodialysis for more than 6 months were randomly divided into conventional hemodialysis group, Chinese medicine group (treated with Niaoduqing Particles) and western medicine group (treated with Vitamin E), 80 cases in each group, with 30 healthy people as control group. The levels of hs-CRP, IL-6 and HCY were detected before and after 1, 3, 6 months of treatment. Results Before treatment, the levels of inflammatory factors in hemodialysis patients were higher than control group. And after 3 months of treatment, the levels of hs-CRP, IL-6 and HCY of Chinese medicine group were decreased. And after 6 months of treatment, the levels of inflammatory factors were decreased obviously compared with pretherapy (P<0.01), and the difference with the conventional hemodialysis group was significant (P<0.01). Compared with pretherapy, the changes of inflammatory factors of western medicine group were statistically insignificant. Conclusion Niaoduqing Particles can significantly improve the microinflammatory state in maintenance hemodialysis patients, and the effect is superior to Vitamin E.

Objective: Explore the method for volumetric measurement of alveolar bone defect. Methods: This study applied 2 advanced preoperative volume measurement methods: three-dimensional (3D) printing and computer-aided engineering (CAE). Twenty-six unilateral alveolar cleft patients were enrolled in this study from April 2015 to December 2016. Their computed tomographic data were sent to 3D printing and CAE software. A simulated graft was used on the 3D-printed model, and the graft volume was measured by water displacement. The volume calculated by CAE software used mirror-reverses technique. Results: The volume of alveolar bone defect could be detected by both methods. The average volume of the simulated bone grafts by 3D-printed models was 1.61 ml, a little higher than the mean volume of 1.60 ml calculated by CAE software. The difference between the 2 volumes was from -0.34 ml to 0.54 ml. The paired Student t test showed no statistically significant difference between the volumes derived from the 2 methods. Conclusions This study demonstrated that the volume of alveolar bone defect is about 1.6ml in unilateral alveolar cleft patients aged 9-12 years. The mirror-reversed technique by CAE software is as accurate as the simulated operation on 3D-printed models. These findings further validate the use of 3D printing and CAE technique in alveolar defect repairing.

OBJECTIVETo explore the optimal time of acupuncture intervention in the assisted reproduction.

METHODSOne hundred and twenty female mice and 60 male mice were collected. 20 female mice were selected in the natural period group and the rest 100 female mice were prepared as the model of controlled ovarian hyperstimulation (COH). The model mice were randomized into a COH group, a down-regulation group, a gonadotropins (Gn) start group, an injection of human chorionic gonadotropin (HCG) group and an embryo culture group, 20 mice in each one. The donor mice and receptor mice were subdivided in each group, 10 mice in each subgroup. One week before the experiment, vas deferens ligature was done in 30 male mice and the other 30 male mice did not receive ligature. In the down-regulation group, the Gn start group, the HCG injection group and the embryo culture group, electroacupuncture (EA) was applied to "Guanyuan" (CV 4), "Zhongji" (CV 3) and "Sanyinjiao" (SP 6) at the time points accordingly. EA stimulation was in the condition of continuous wave, 2 Hz and 1 mA. No inter-vention was given in the natural period group and the COH group. On the day of HCG injection, the donor mice and the non-ligatured male mice were put in the same cage of each group. The fertilized ovum was collected with the date of fertilization marked and was fostered in the incubator. At the ratio of 1:1, the receptor mice and ligatured mice were put in the same cage in each group. The vaginal plug was examined in the next morning. The pseudopregnancy was marked with the date of plug observed. In the 68th hour of embryo culture, the embryo of the donor was shifted to the receptor on the same day when the plug was observed. The clinical pregnancy rate and embryo imbed site number were observed. RT-PCR assay was adopted to determine the expression of insulin-like growth factor-1 (IGF-1) mRNA in endometrium.

RESULTSIn the COH group, the pregnancy rate, average imbed site number and endometrial IGF-1 mRNA expression were all significantly lower than those in the natural period group (all<0.01). After EA treatment, in the Gn group, the HCG injection group and the embryo culture group, the pregnancy rates were higher significantly than those in the COH group (<0.05,<0.01). In the HCG injection group, the average imbed site number and IGF-1 mRNA expression were increased apparently as compared with those in the COH group (both<0.01), better than those in the Gn group and the embryo culture group (all<0.01).

CONCLUSIONSIn the treatment with acupuncture combined with IVF-ET for infertility, the intervention of acupuncture on the day of HCG injection is the optimal time point. It increases the secretion of endometrial IGF-1 so as to improve the clinical pregnancy rate, the mean imbed site number and the embryo implantation.