OBJECTIVE:To investigate the anti-angiogenic activity of ray cartilage glycosaminoglycans(RCG).METHODS:Primary culture of human umbilical vein endothelial cells(HUVEC)was performed,and MTT was adopted to evaluate the effects of RCG on the proliferation of HUVEC;Corneal neovascularization(CNV)was induced by sutures on Wistar rats,and CNV area was calculated to evaluate the effects of different concentration of RCG on CNV in Wistar rats.The model of mice with Lewis lung carcinoma was made to observe the effects of different concentration of RCG on tumor growth,with inhibition ratio of primary tumor measured and microvessel density(MVD)quantitated by immunohistochemical staining.RESULTS:RCG obviously inhibited the proliferation of HUVEC in vitro,with IC50 value at 62.93 mg?mL-1.As compared with normal saline group,RCG groups showed smaller areas of new blood vessels(P

Chemotherapy -induced peripheral neuropathy ( CIPN ) is one of the most common adverse effects in chemotherapy .The mechanism of CIPN has always been attracting researchers′attention.Recently,the intimate relationship between nerve growth factor and CIPN is one of the most hot topics .NGF protects neurons from damage of chemotherapy drugs through inhibiting apoptotsis and other pathway to relieve the neurotoxicity . However ,there are still many problems in the clinical application of exogenous NGF .To improve the mechanism of NGF in the development and application approach of CIPN ,treatment of chemotherapy -induced peripheral neu-rotoxicity is of great significance .

Objective To investigate the protective effects of Xuebijing(XBJ)on the injury of vascular endothelial cells(VEC)induced by lipopolysaccharide (LPS),and to study the mechanisms of the production of nitric oxide (NO)and the expressions of inducible nitric oxide sytnhase (iNOS)and signal transduction under XBJ intervention condition.Methods The cultured VEC were divided into control group, LPS (1 mg · L-1 )group, LPS (1 mg·L-1)+XBJ(25 g·L-1)group,LPS(1 mg·L-1)+pyrrolidine dithiocarbamate(PDTC,20μmol·L-1) group;XBJ and PDTC were administrated 1 h before incubation of with LPS.Western blotting method was used to detect the expressions of iNOS and NF-κB p65 protein.The level of NO in the supernatant was measured by Griess reagent.Results Comparaed with control group,the NO level and the expression levels of iNOS protein and NF-κB p65 protein in VEC in LPS group were significantly increased(P<0.01).Compared with LPS group,the NO level and the expression levels of iNOS protein and NF-κB p65 protein in VEC in LPS+XBJ group were significantly decreased (P<0.05 or P<0.01);the NO level and the expression levels of NF-κB p65 protein and iNOS protein in VEC in LPS+PDTC group were significantly decreased(P<0.05 or P<0.01).There were no significant differences of the NO levels and the expression levels of iNOS protein between LPS+XBJ group and LPS +PDTC group (P>0.05),but the expression level of NF-κB p65 protein in LPS+PDTC group was lower than that in LPS+XBJ group(P<0.05).Conclusion XBJ can inhibit the production of NO and the expression of iNOS protein in VEC;its mechanism may be related to inhibiting the activation of NF-κB to control inflammation.

Objective To study the effects of extracorporeal shock wave therapy (ESWT) on avascular nec-rosis of the femoral head. Methods Thirty-two rabbits were used to make the avascular necrosis of the femoral headmodel by use of freezing method. Two rabbits were chosen to check the result of the model. Thirty rabbits were ran-domly divided into 2 groups : a treatment group and a control group. Each group was observed 2, 4 and 8 weeks aftertreatment. Morphological and pathological changes of the femoral head were observed. An immunohistochemicalmethod was used to examine the distribution of vessel endothelium growth factor (VEGF) and fibroblast growth factor(bFGF) immunoreactive-positive cells in the bone tissues. Results Morphologically, the femoral heads of treat-ment group were smoother and glossier than those of the control group. The empty lacunae ratio, the number of theosteoblast was significantly different between the treatment and the control group. The expression of VEGF and hFGFin the bone tissues of treatment group increased significantly when compared with control group. Conclusion ES-WT can promote healing of avascular necrosis of femoral head.

OBJECTIVE:To determine the titer of main component in kitasamycin tablets and acetylkitasamycin dry suspension.METHODS:Staphylococcus aureus was used as test organism and which were cultured at (37?0.5) ℃ for about 4～5 hours by adding 1.0%～1.5% kitasamycin and 2.0%～2.5% acetylkitasamycin,then the absorbance was determined at a wavelength of 530 nm.RESULTS:The linear range of kitasamycin was 0.5～4.0 IU?mL-1 and that of acetylkitasamycin was 0.45～6.3 IU?mL-1,and their recovery rates were 101.7%(RSD=1.9%,n=9) and 101.1%(RSD=2.1%,n=9),respectively.CONCLUSION:The established turbidimetry is sensitive,rapid yet with few influencing factors,thus it is applicable for the titer determination of main component in kitasamycin tablets and acetylkitasamycin dry suspension.

Objective To investigate the expression changes of acetylcholinesterase (AChE) related microRNAs derived from peripheral blood mononuclear cells (PBMCs) in patients with stroke. Methods The microRNAs for targeting AChE mRNA were selected via prediction software and previous studies. PBMCs were extracted from venous blood samples of acute ischemic stroke patients (onset<24 h) and healthy controls. The expressions of microRNAs and AChE mRNA were quantified using real-time PCR (RT-PCR). The protein level of AChE was detected by Western blot assay. Results Thepredicted microRNAs included microRNA (miR)-24,-28,-124,-132,-182*,-194 and-484. The expression levels of miR-24,-124,-132 and-194 were significantly elevated in stroke patients compared with those of controls (P<0.05). There were no significant changes in expression levels of miR-28,-182*and-484. Additionally, the relative expression levels of intracellular AChE mRNA and protein decreased significantly in stroke patients (P<0.05). Conclusion MiRNAs can enhance cholinergic anti-inflammatory pathway by targeting AChE in patients with acute ischemic stroke.

Objective To compare the safety and efficacy of whole stage and first stage of labor analgesia on puerperas with pregnancy-induced hypertension syndrome.Methods From March, 201 5 to November,201 5,1 96 single fetus,aged 22-35 years,term pregnancy,primipara,ASA physical status Ⅰ or Ⅱ, diagnosed pregnancy-induced hypertension syndrome, were randomly divided into the whole stage of labor analgesia group (group T)and the first stage of labor analgesia group (group F).Patients in group T received labor analgesia after uterine contractions regularly,and continued the labor analgesia to the end of the delivery;patients in group F received labor analgesia after uterine contractions regularly and the uterus cervix was 3 cm,in the end of the first stage of la-bor,using the normal saline instead of the medicine.The MAP and VAS score were recorded before analgesia and 10 minutes,60 minutes after the beginning of analgesia,when the uterine cervix dilated absolutely,the second stage of labor and when the fetal is delivered.The Bromage scores were recor-ded at the second stage of labor.The time for the first stage of labor,the second stage of labor and the third stage of labor were recorded.The mode of delivery,the incidence of eclampsia,postpartum hemorrhage,the use of oxytocin and antihypertensive in the delivery progress were recorded.The ne-onate weight,Apgar score and the cord blood gas analysis were recorded.Results At the uterine cer-vix dilated absolutely and the second stage of labor,the MAP [(106.0±7.0)mm Hg vs.(1 1 5.4± 7.3)mm Hg,(106.2 ± 7.2 )mm Hg vs.(1 1 6.0 ± 7.6 )mm Hg]and VAS score [(2.0 ± 1.1 ) scores vs.(5.1±1.2)scores,(1.9±1.2)scores vs.(5.2±1.3)scores]in group T were lower than those in group F (P <0.05).The patients who received oxytocin in group T were more than that in group F [50(5 1%)vs.35(35%),P <0.05].Conclusion The whole stage labor epidural analgesia is safe and effective for puerperas with pregnancy-induced hypertension syndrome.

To evaluate the efficacy and safety of limbal relaxing incision ( LRl) for correcting corneal astigmatism during implantable collamer lens ( lCL) surgery.METHODS:A total of 185 eyes of 105 patients with high myopia and corneal keratometric astigmatism were included in the study. lCL surgery with concomitant relaxing incision was performed in 105 eyes of 60 patients in LRls group ( Group A) . Eighty eyes of 45 patients only underwent lCL surgery were in control group ( Group B) . All patients undergone ophthalmic examination that included uncorrected visual acuity ( UCVA ) , best -corrected visual acuity ( BCVA ) , Pentacam analysis system to observe the changes of corneal astigmatism before and 1wk, 1 and 3mo after surgery.RESULTS: Respectively comparing UCVA between two groups in 1 and 3mo postoperatively, the P values were considered statistically significant ( P < 0. 05 ). But, respectively comparing BCVA between two groups in 1wk, 1 and 3mo postoperatively, the P values were considered no statistically significant ( P > 0. 05 ). Preoperative corneal astigmatism was 1. 52 ± 0. 55D in group A and 1. 48 ± 0. 57D in group B, there was no statistically significant difference (P>0. 05). One week postoperatively, the astigmatism was 0. 55 ± 0. 41D in group A and 1. 20 ± 0. 48D in group B. One month postoperatively, the astigmatism was 0. 60 ± 0. 38D in group A and 0. 93 ± 0. 47D. Three months postoperatively, the astigmatism was 0. 51 ± 0. 32D in group A and 0. 96 ± 0. 40D in group B. The difference between the two groups were statistically significant ( P<0. 05 ). The difference value of corned astigmatism before surgery and 1wk, 1 and 3mo after surgery had statistical significance ( P<0. 05). ln LRls group, at preoperative and postoperative time points, the average corneal astigmatism changes were also considered statistically significant difference (P<0. 05). CONCLUSlON: LRls performed during lCL surgery appeared to be an effective and safer procedure to reduce pre-existing corneal astigmatism and improve UCVA as well as the visual quality.

Diabetic macular edema ( DME ) is a major cause of visual impairment in patients with diabetes mellitus, the central retinal thickness ( CRT ) is correlated with the visual impairment and the changes of visual function before and after treatment. Furthermore, CRT is related to the changes of macular microstructure. The subtle changes of retinal microstructure can be qualitative and quantitative analyzed by spectral- domain OCT ( SD -OCT) . In this study, the changes of retinal microstructure in patients with DME are reviewed, what is of great meaning to explore mechanism, observe disease progress, guide clinical treatment and prospect prognosis of DME.