Cell adhesion molecules (CAMs) are involved in glycoproteins expressed on cell surfaces which play an essential role in clinical disorders. At present, there are several groups of anti inflammatory drugs interfere with the expression of CAMs either directly or indirectly. This paper reviews the study of recent finding pharmacological agents associated with CAMs.

Traditionally,the nellrorl of central nervous system has been regarded as lack of regeneration capability.Recent studies have found that cerebral ischemia may activate neurogenesis in brains of adult mammals,and bring new hope for neural repair after ischemic brain injury.It is very necessary to fully understand the site of neurogenesis,process and neurogenesis after cerebral ischemia and its regulation mechanisms in adult mammals.

AIM　To study the inhibitory effects of indomethacin and meloxicam on NF-κB from lipopolysaccharide (LPS) stimulated peritoneal macrophages of mice. METHODS　NF-κB was measured with the method of electrophoretic mobility shift assay (EMSA). RESULTS　After induction by LPS at the concentrations of 1 and 3 μg.mL-1, the NF-κB content of the mouse peritoneal macrophages increased markedly. Indomethacin and meloxicam, at the concentrations of 10-7-10-5 mol.L-1, decreased the activation of NF-κB at the concentrations of 1 and 3 μg.mL-1 in activated mouse peritoneal macrophages induced with LPS at the concentrations of 1 and 3 μg.mL-1. CONCLUSION　The inhibitory effects of indomethacin and meloxicam on NF-κB activation may be one of their mechanisms of antiinflammatory actions.

Objective To investigate the effect of metformin ( MET) on learning and memory behavior in HFD-induced insulin-resistant rats.Methods Thirty male Sprague-Dawley (SD) rats were divided into three groups to receive either a normal diet (Control group) or a high-fat diet (two HFD groups) for four weeks(HFD+MET).From two HFD groups, one received vehicle ( HFD group ) alone and other MET administration ( HFD+MET group ) .MET was dissolved in drinking water at a concentration of 2 mg/ml.All rats were subjected to the glucose tolerance test ( GTT) and behavioral tests using the elevated plus maze ( EPM ) , open field test ( OFT ) , Morris water maze ( MWM ) test and the step-through passive avoidance test ( PA) after four-week consecutive MET treatment .Blood samples were collected for determination of glucose. Results MET attenuated the glucose resistant condition and improved cognitive behavior in MWM and PA, vs the HFD group. Conclusion MET can improve the impaired learning and memory behavior in HFD-induced insulin-resistant rats.

Objective To evaluate the effect of Saccharomyces boulardii (SB) administration on very-low-birth-weight (VLBW) infants.Methods One hundred and ninety-eight preterm infants were prospectively randomized into observation group (105 cases) and control group (93 cases) based on the symptomatic and supportive treatment.When uncompletely stomach intestine nutrition fed,the patients of observation group took SB (50 mg/kg),the patients of control group took equivalent placebo.The times of defecation and diarrhea,the rate of neonatal necrotizing enterocolitis,hospital onset of infection (septicemia,pulmonary infection),fungal infection,the time of intravenous nutrition and length of stay were compared.Results The general data in two groups had no significant difference (P ＞ 0.05).The times of defecation,time of intravenous nutrition and length of stay in two groups had significant difference [(1.8 ± 0.4) times/d vs.(3.4 ± 0.5) times/d,(30.21 ± 3.43) d vs.(40.47 ± 4.35) d,(33.5 ± 6.8) d vs.(45.4 ± 9.3) d] (P ＜ 0.05).The rate of diarrhea,neonatal necrotizing enterocolitis,septicemia and pyemia in two groups had significant difference [14.3％ (15/105) vs.25.8％ (24/93),11.4％ (12/105) vs.19.4％ (18/93),19.0％ (20/105) vs.29.0％ (27/93)] (P ＜ 0.05).The rate of pulmonary infection and fungal infection between two groups had no significant difference(P＞ 0.05).Conclusion SB administration on VLBW infants can reduce the infection,promote enteral feeding,shorter hospital stay,and has a certain significance on the family and the community.

Objective To investigate efficacy and effect on liver function of the experimental therapy with balloon catheter to block the main artery temporarily and then pressurize chemoembolization to treat hypovascular liver cancer. Methods Eighty patients with hypovascular liver cancer requiring interventional therapy were randomly divided into two groups.The experimental group was treated with the new therapy and the control group was treated with traditional therapy. The lipiodol-filling status and maximum diameter of the tumor was analyzed for a midterm outcome,and the change of AFP and liver function were evaluated.Mann-Whitney test was used for data between two groups,Friedman test was used for data of each group,and Spearman nonparameter relevant analysis was used for efficacy indexes.Results ( 1 ) All Patients have confirmed diagnosis of hypocvascular liver cancer and got balanced baseline. ( 2 ) Lipiodol-filling status:the clinical efficacy and benefit rates of patients from experimental group were higher than that from control group and showed statistically significant difference in 1,3,12 months (Z =-2.135,- 2.939,- 2.686 ; P =0.034,0.004,0.007 ),but no statistically significant difference in 6 month ( Z =- 1.170,P =0.242 ).The status of lipiodol-filling of experimental group ( x2 =2.593,P =0.459 ) was more stable than control group ( x2 =10.886,P =0.012).(3) Maximum diameter of the tumor:the clinical efficacy and benefit rates of patients from experimental group were higher than that from control group and showed statistically significant difference in 3,12 months ( Z =- 2.734,- 2.733 ; P =0.006,0.006),but no statistically significant difference in 1,6 month ( Z =- 1.692,- 1.895 ;P =0.091,0.058). But neither of two groups showed statistically significant difference in change of maximum diameter of the tumor ( x2 =5.500,P =0.139 ; x2 =6.509,P =0.089 ).Relation between lipiodol-filling and maximum diameter showed positive correlation in 3 month ( r =0.257,P =0.035 ). (4) Stratified analysis was used for data of AFP according to AFP value before therapy,and two groups showed no statistically significant difference for patients belonging to 20-1000 μg/L by Pearson Chi-square test. (5)Two groups showed no statistically significant difference for data of liver function before therapy and in 1,3,6months ( Z =- 1.073,- 1.314,-0.518,-0.549;P=0.308,0.189,0.604,0.583).Conclusions According to the midterm result of this experiment,the experimental therapy increased lipiodol-filling and decreased maximum diameter of the tumor significantly in 3 and 12 months correspondingly,but no significant difference was observed in AFP and liver function between groups yet. So the long-term efficacy and its influence to lung metastasis and survival rate need further research.

AIM:To investigate the effects of rolipram on the ability of learning and memory and the activity of PDE4 in hippocampus following the focal brain injury induced by ischemia-reperfusion in rats.METHODS:The cerebral ischemia-reperfusion injury model was made by middle cerebral artery occlusion(MCAO) in rats.The rats were randomly divided into sham-operated group,model group,and rolipram group.Rolipram was administered once a day(1 mg/kg,ip) from 6 h after the onset of the operation for 2 weeks.Then the learning and memory abilities were tested after Morris water maze and step-though training.The activity of PDE4 in hippocampus was evaluated by HPLC.RESULTS:In the Morris water maze test,compared to sham-operated group,the platform-finding time and swimming distance in model group were significantly longer(P

Objective To study the pulmonary surfactant (PS) on prevention of neonatal respiratory distress syndrome (NRDS) in neonates delivered via caesarean section. Methods From selective cesarean section infants (gestational age 34-38+6 W), 80 cases whose test tube oscillation tests were negative and amniotic fluid pulmonary surfactant associated protein A (SP-A) concentrations were lower than <10μg/L, and were randomly divided into PS prevention group and control group, with 40 cases in each group. PS prevention group within 1 h of birth were administrated poractant alfa injection by endotracheal tube (dose 100 mg/kg), but the control group was not given special treatment, leaving only the observation. The incidence of NRDS, treatment status and clinical progression were compared between two groups. Results The incidence of NRDS in control group was 82.5%(33/40), in PS prevention group was 37.5%(15/40), and there was significant difference (P<0.05). The degree of NRDS in control group was more severe. The incidence rate of persistent pulmonary hypertension of the new-born (PPHN), pulmonary air leak, patent ductus arteriosus and oxygenation index above 25 mmHg (1 mmHg=0.133 kPa) in control group were significantly higher than those in PS prevention group (P<0.05). The time of mechanical ventilation, the time of oxygen inhalation, ratio of arterial partial pressure of oxygen (PaO2) before mechanical ventilation to fraction of inspired oxygen (FiO2), and costs of hospitalization in control group were significantly higher than those in PS prevention group (P<0.05). Conclusions PS prevention can reduce the incidence of NRDS of neonates delivered by elective caesarean section, can alleviate the symptoms of NRDS, shorten length of stay and reduce the cost of hospitalization.

Objective To comparative analysis the rabbit VX2 tumors angiogenesis in fatty liver and normal liver,and investigate the correlation of contrast-enhanced ultrasound (CEUS) parameters and their angiogenesis.Methods Rabbit models of fatty liver and normal liver with implanted VX2 tumors were established.Two groups of hepatic backgrounds and VX2 tumors were analyzed by QontraXt quantitative software of CEUS.The expression level of tumor microvascular density (MVD) and vascular endothelial growth factor (VEGF) were detected with immunohistochemical techniques and real-time fluorescence quantitative PCR (FQ-PCR).Results ①No significant difference was found in MVD,VEGF protein and gene expression between VX2 tumors in normal liver and fatty liver.The expression of VEGF gene in fatty liver parenchyma were lower than normal liver parenchyma (P ＜0.05).②There was positive correlation between MVD and peak intensity (r =0.494,P ＜0.05; r =0.591,P ＜0.01) both in fatty liver and normal liver VX2 tumors.The expression of VEGF protein were not correlated with TIC parameters (all P ＞ 0.05).③The MVD had positive correlation with expression of VEGF protein in fatty liver and normal liver VX2 tumors (r =0.508,P ＜0.05; r =0.570,P ＜0.01).Conclusions The expression of MVD and VEGF had no significant difference between fatty liver and normal liver VX2 tumors.The peak intensity of VX2 tumors CEUS had positive correlation with MVD both in fatty liver and normal liver,which can indirectly reflect MVD expression level and help to evaluate tumor angiogenesis.

Objective To investigate the conventional ultrasound characteristics of VX2 tumors in fatty liver and normal liver of rabbits,furthermore,to analysis the blood flow characteristics of them with contrast-enhanced ultrasound (CEUS).Methods Rabbit model of fatty liver and normal liver with implanted VX2 tumors were established,and examined using conventional and CEUS.QontraXt quantitative software of CEUS was used.Results The fatty liver models with 20 VX2 tumors and normal liver models with 23 VX2 tumors were successfully developed in rabbits.In conventional ultrasonography,hyperechoic VX2 tumor lesions in fatty liver were far less than them in normal liver (P =0.008).No significant difference was found in iso-echoic and hypoechoic VX2 tumor lesions between two groups (P ＞ 0.05).Compared with normal liver parenchyma,arrival time of fatty liver parenchyma was later,peak intensity was lower (P ＜0.05).There was no significant difference in arrival time,peak intensity,sharpness,area under curve between the VX2 tumors of normal liver and fatty liver (P ＞ 0.05).Conclusions There is a significant difference characteristic in conventional ultrasonography between VX2 tumors in fatty liver and normal liver.Fatty liver blood perfusion effects are lower than normal liver in CEUS.Quantitative parameters of CEUS are more objective and accurate for hemodynamic of VX2 tumors and fatty liver.