Objective:To study the relationship among serum uric acid (SUA)level,brachial-ankle pulse wave veloci-ty (baPWV)and severity of coronary disease.Methods:A total of 121 inpatients,who hospitalized in our depart-ment of cardiology from Jan 2011 to Jul 2012,were enrolled.According to results of coronary angiography,they were divided into coronary heart disease (CHD)group (n=59)and normal control group (n=62),CHD group was further divided into single vessel coronary disease group (n=30,single vessel group),double-vessel coronary disease group (n=14,double-vessel group)and multi-vessel coronary disease group (n=15,multi-vessel group).SUA level and baPWV were compared among all groups,and their relationship with degree of coronary disease was analyzed. Results:SUA concentration gradually rose along with number of diseased coronary vessels increased,it's (349.26± 96.58)μmol/L,(400.37±70.96)μmol/L,(517.57±85.26)μmol/L and (602.60±77.03)μmol/L in normal con-trol,single vessel,double-vessel and multi-vessel group respectively,P<0.05 or <0.01;baPWV gradually rose a-long with number of diseased coronary vessels increased,compared with normal control group,there was significant increase in baPWV [(1499.04±193.82)cm/s vs.(1885.32±319.73)cm/s,(2036.00±406.40)cm/s,(2171.03± 348.53)cm/s]in single vessel,double-vessel and multi-vessel group,that of double-vessel group was significantly higher than that of single vessel group,P<0.05~<0.01.Logistic regression analysis indicated that SUA and baP-WV were independent risk factors for CHD morbidity (OR=13.011,14.008,P=0.000).Conclusion:Serum uric acid level and pulse wave velocity possess important clinical application value for predicting CHD and its severity.

Objective To study the clinical effect of Xingnaojing injection in treating patients with acute cer-ebral infarction and its influence on serum matrix metalloproteinase 9 (MMP -9),nitric oxide (NO)and nitric oxide synthase (NOS).Methods 112 patients with acute cerebral infarction were randomly divided into two groups by ran-dom number table method,56 cases in each group.The control group received routine treatment for acute cerebral infarction.The observation group received routine treatment plus intravenous injection Xingnaojing.The changes of NIHSS score,motor function score and sensory function score in the two groups were compared before and after treat-ment.The serum levels of MMP -9,NOS and NO in the two groups were observed before and after treatment.Results The total effective rate of observation group was 82.14%,which was significantly higher than 64.29% in the control group (χ2 =4.553,P <0.05).After treatment,NIHSS scores of the observation group were significantly lower than the control group (t =5.082,5.522,6.253,all P <0.01 ).After treatment for 3 weeks,the motor function score (69.54 ±17.82)points,sensory function score (30.58 ±7.94)points of the observation group were significantly higher than (52.93 ±14.66)points and (23.08 ±6.31)points in the control group (t =5.387,5.534,all P <0.01).After treatment,the serum MMP -9,NOS,NO levels of the observation group were significantly lower than the control group (all P <0.01 ).Conclusion Xingnaojing injection in the treatment of acute cerebral infarction has good curative effect,it can promote the recovery of neurological function,improve motor function and sensory function, and by adjusting the MMP -9,NOS,NO levels to protect the nerve and blood vessel function.

Objective To study the chemical constituents in the seeds of Zizyphus jujuba var.spinosa.Methods The compounds were isolated by silica gel column chromatography and their structures were established by spectroscopic methods.Results A new keto-dammarane type saponin,jujuboside H(Ⅰ),along with three known compounds protojujuboside A(Ⅱ),spinosin(Ⅲ),and betulic acid(Ⅳ)were isolated.Conclusion Compound Ⅰ is a new compound named jujuboside H.

To investigate the effect of FGF-10 on the secretion of GM-CSF by adult keratinocytes in vitro and to understand the mechanisms involved in the stimulation of granulation tissue formation by FGF-10 during wound healing. Concentrations of FGF-10 used were 4, 16, 125 and 500 ng/ml. Cells were seeded in the amount of 2 500 cells/cm 2 or 5 000 cells/cm 2 in dishes in serum-free medium, and supernatants were collected at 24, 48 and 72 hours after culture. The amounts of GM-CSF in cell culture supernatants were determined using GM-CSF ELISA kits, and cell numbers were counted by haemocytometer. For cells seeded in low density (2 500 cells/cm 2), GM-CSF was not detected at 24 hours. At 48 hours, both in absolute concentrations and on a per-cell basis, the amounts of GM-CSF secreted in cultures with 125 and 500ng/ml FGF-10 were significantly higher than that in negative control (P0.05). At 48 hours, the keratinocytes in the middle area were confluent, and a number of cornified cells were observed, while the productions of GM-CSF in FGF-10 cultures were not higher than that in negative control. There was a clear negative correlation between the secretion production of the growth factor and the total cell number in each dish with a correlated coeffecient of 0.881 (P

Objective To study expression intensity and distribution of phosphorylated forms of extracellular signal-regulated protein kinase1/2 (ERK1/2), stress-activated protein kinase (SAPK) and P38MAPK in normal skin and hypertrophic scars and their potential biological significance. Methods The morphological characteristics of hypertrophic scars in different periods after wound healing and normal skin were examined histopathologically. Protein expression of p-ERK1/2, p-SAPK and p-P38MAPK was also assessed with immunohistochemical technique. Results In normal skin, phosphorylated forms of ERK1/2, SAPK and P38MAPK were mainly located in epidermal basal cells, in which the positive cellular rates of all the three proteins were low. Along with the maturation of hypertrophic scars, protein contents of p-ERK1/2 and p-SAPK were progressively increased. In mature hypertrophic scars, positive signals of these two proteins were mostly distributed in keratinocytes and some fibroblasts. The positive cellular rate of p-P38MAPK ascended in active hypertrophic scar, then decreased to a level which was still higher than that of normal skin. Conclusion The formation of hypertrophic scars may be associated with the alteration in signaling pathways which results in the increment of protein contents of p-ERK1/2, p-SAPK and p-P38MAPK.

Objective To investigate gene expression of epidermal growth factor (EGF), its receptor (EGFR) and two protooncogenes (c-fos and c-myc), in fetal skin at different development stages and children skin and to delineate their potential biological significance. Methods Fetal skin biopsies of human embryo were obtained from spontaneous abortions at different gestational ages from 13 to 32 weeks and children skin specimens were collected from patients undergoing plastic surgery. After morphological characteristics of skin at different development stages were detected with histological methods, gene expressions of EGF, EGFR, c-fos and c-myc in skin at different development stages were examined with reverse transcription-polymerase chain reaction analysis (RT-PCR). Results Gene expression of EGF, EGFR, c-fos or c-myc could all be detected in fetal and childern skins. In fetal skin, the gene expression of these 4 genes was weak. Gene expression of these genes in skin was progressively enhanced with increasing gestational age. In children skin, the mRNA contents of these 4 genes were significantly increased in comparison with those in fetal skin (P

Objective To comprehensively analyse the transcriptional changes of genes and their biologic significance that occurred in the process of development of human fetal skin by using high-density oligonucleotide DNA array. Methods Samples of human fetal skin were obtained from aborted fetuese of 10W, 15W, 24W, 32W EGA (estimated gestational age) respectively. Total RNAs were isolated from of skin specimens of fetuses of different EGA, and mRNAs were purified and labeled with incorporation of fluorescent dUTP to prepare the hybridization probes by using reverse transcription polymerase chain reaction (RT-PCR). Approximately 21 329 human genes were spotted on a chemical-material-coated-glass plate in array. Results According to the hybridization results from oligonucleotide DNA microarray, gene expresion patterns and functions were analysed. Gene-chip disclosed a large scale of information in developmental human fetal skin, rendering a convenient way to investigate the temporal and spatial expressions of gene profile among skin cells. Many specific genes transcription expressed differently at different stages of development of fetal skin, suggesting their key roles in development, differentiation and regulation. Conclusions Microarray or DNA chip technology has revolutioned biological research by empowering to broaden the scope of collecting genomic information. Therefore, microarray-based study is able to reveal a substantial number of genes which might participate in embryogenesis and development of human skin. The present study demonstrated a previously unrecongnized role of gene expression in the control of human fetal skin growth and structure during its developmental stage. A complicated network of skin development process was fairly well characterized.

Objective To investigate the effects of serum from burned rats on the gene expression in cultured rat mesenchymal stem cells (MSCs). Methods Bone marrow was extracted from sacrificed Wistar rats, and MSCs were then incubated for 24h in F-12 medium in the presence of normal rat serum (group N) or serum obtained from burned rats 3 days after injury (group B). Total RNA was extracted from both groups.The mRNA was isolated.An Oligo microarray containing 5705 genes was used to compare the differences of gene expression between two groups. Results There were four genes which expressed differently in two groups.In comparison with group N, the expression of steroid sensitive gene 1 was decreased, but that of fibroblast growth factor-4, dihydroxyacetonephosphate acyltransferase and a EST, which was moderately similar to Bmp2-inducible kinase, were increased in group B. Conclusion Serum from burned rats was able to change the gene expression of MSCs, and it might play the key role in wound repair.

Objective To observe the effect of vacuum-assisted drainage (VAC) technique on the granulation tissue formation of infected soft tissue explosive injury in pig. Methods 16 wounds produced by explosion with electric detonators,which were fixed on the skin of the shoulders and hips of 4 small white pigs. The wounds were divided into 2 groups randomly: in group A the wounds were treated with conventional method,and in group B the wounds were treated with VAC set with a pressure of -15kPa. All wounds were infected on the third day after explosion. The depth of wounds was measured,and specimens were talcen from wound bed,immediately before treatment,and 1,3,6,9,14,19,and 24 days after treatment. The specimens were bistopathologieally studied with HE staining to assess the wound healing process of the two groups. Furthermore,immunohistochemistry for Factor Ⅷ related antigen and Ki67 was done to estimate the number of vascular endothelial cells and proliferating cells. Results From 1 to 19 days after the treatment,the depth of the wounds in group B were shallower than those of group A ( P

Objective To explore the change in gene expression of extracellular signal regulated protein kinase1 (erk1),erk2,p38MAPK and 3 c-Jun N- terminal kinases (jnk1,jnk2,jnk3) in fetal skin at different developmental stages and children skin. Methods After morphological characteristics of fetal skin at different developmental stages were examined histologically,gene expressions of erk1,erk2,p38MAPK,jnk1,jnk2 and jnk3 were determined with reverse transcription-polymerase chain reaction analysis (RT-PCR). Results Compared with early gestational fetal skin,the levels of gene expression of erk1 and erk2 showed no substantial change in late gestational fetal skin,while the contents of transcripts of p38MAPK and jnk1 were significantly decreased,the expressions of mRNA of jnk2 and jnk3 were obviously elevated. In children skin,gene expressions of erk2,p38MAPK and jnk1 were even more remarkably lowered. In contrary,gene expressions of jnk2 and jnk3 were marked enhanced. Conclusion The relative elevation of gene transcription of erk2 and p38MAPK and the inhibition of gene expression of jnk2 and jnk3 in fetal skin of earlier developmental stage might be related to fetal scarless healing.