ObjectiveTo evaluate the immediate and 1-year outcomes of percutaneous coronary intervention (PCI) with domestically made drug-eluting stent (DES) in patients with previous coronary bypass graft surgery (post-CABG) in order to determine the relationship between related factors and major adverse cardiovascular and cerebral events (MACCE) after PCI. Methods From September 2008 to October 2009, 83 consecutive post-CABG patients had implantation of 176 domestically made DES for 126 coronary lesions. Each patient was followed up at least for 1 year after the procedure done for the evaluation of the efficacy and safety of DES implanted in post-CABG patients. Logistic regression analysis was used to determine the relationship between major factors and MACCE.Results The success rate of operation procedure was 97. 5％. MACCE occurred in 10 patients including death in 1 patient, stroke in 1 patient,myocardial infarction in 1 patient, and those were treated with repeated coronary revascularization in 8patients and target lesion revascularization (TLR) in 1 patient. ConclusionsImmediate and medium-term results showed the safety and efficacy of revascularization with domestically made DES in post-CABG patients. Complete revascularization was an independent predictor of MACCE.

Objective To investigate the possible association between HLA-B51 alleles and Behcet's disease (BD). Methods Totally, 61 Chinese patients of Han nationality, who were diagnosed with BD according to the International Study Group (ISG) criteria, were recruited. The control cohort consisted of 100 healthy individuals. Blood samples were obtained from all the subjects. PCR-sequenee specific primers (SSPs) were used to for the genotyping of HLA-B51 alleles (HLA-B5101-HLA-B5109). Results Com- pared with the control group (11 positive, 11% ), the frequency of HLA-B51 (18 positive, 29.5% ) was sig- nificantly increased in BD patients (χ2=8.79, P<0.01, RR=3.39). The HLA-B51-positive patients and controls consistently carried HLA-B5101 allele with no other alleles observed. There were 15 males and 3 females in HLA-B51 positive patients, 22 males and 21 females in HLA-B51-negative patients, and signifi- cant differences in gender distribution was observed between HLA-B51-positive and negative patients (P<0.05 ). Moreover, the average age of onset in HLA-B51-positive patients significantly differed from that in HLA-B51-negative patients (28.4±10 years vs 37.3±12 years, P<0.05). However, no significant differ- ences were noticed in the clinical types, course, skin lesions, prevalence of genital ulcer, eye damage, joint involvement, or pathergy reaction between HLA-B51-positive and -negative patients (P0.05). Conclu- sions This study supports that HLA-B5101 allele is associated not only with the development of BD, but also with the gender and onset age of patients with BD of Chinese Han nationality.

Objective To discuss the ideas and specific implementation steps of Oracle database upgrading.Methods By using the EXP and IMP which are provided by the Oracle database,import and export of entire database are implemented and complete database upgrading.Results The database is upgraded form Oracle 8i to Oracle 10g,which is the foundation of our hospital follow-up implementation of PACS and RAC technology.Conclusion Because the environment of practical application is different and complex,the Oracle database must test before the upgrading;the appropriate parameters are set according to different front-end application environment,and then enhance server performance significantly.

Objective To investigate the mRNA expression of CC Chemokines, including RANTES (regulated upon activation, normal T cell expressed and secreted), monocyte chemoattracctant protein-1 (MCP-1), monocyte chemoattracctant protein-3 (MCP-3) and macrophage inhibitory protein 1? (MIP-1?), in peripheral blood mononuclear cells (PBMCs) of patients with chronic urticaria, their mutual correlation, and the relationship between the expression level of CC chemokines and the serum level of IgE and eosinophil cationic protein (ECP) in the patients. Methods Reverse transcription-polymerase reaction (RT-PCR) was applied to semiquantitatively analyze the mRNA expression of RANTES, MCP-1, MCP-3 and MIP-1? in PBMCs from 31 patients with chronic urticaria and 22 healthy subjects. Results The mRNA expression of RANTES, MCP-1, MCP-3 and MIP-1?was significantly higher in the patients than those in the normal controls (P 0.05). In the patients, the mRNA expression of RANTES negatively correlated with the serum level of IgE and ECP (P

Objective To investigate the melanocyte lymphocyte reacion when the allogeneic lymphocytes are cultured with normal melanocytes. Methods 3H-thymidine was incorporated into the mixed culture and the transformation and proliferation rates of lymphocytes were detected by liquid scintillation counting and expressed as cpm. Electron microscopy was used to observe the ultrastructure of melanocytes after mixed culture. Results The results of lymphocyte proliferation were expressed by the stimulation indexes. The stimulation indexes in active vitiligo group was significantly different from that in stable vitiligo group and normal controls. The stimulation indexes of the melanocyte stimulated group was significantly different from that of ConA stimulated group. In the mixed melanocyte lymphocyte reaction, the allogeneic lymphocytes had little effect on the melanocytes. The ultrastructure of the melanocytes in the mixed culture showed normal morphology and normal function of synthesis of melanin. Conclusion As a specific antigen in mixed melanocyte lymphocyte reaction, melanocyte has a weak effect on the lymphocytes. The melanocytes from stable stage vitiligo patients seem more suitble to be allografted.

Objective To investigate the effect of calcipotriol on melanin synthesis by human melanocytes and its possible action mechanism.Methods Primary melanocytes were cultured with various concentrations(10~(-5),10~(-6),10~(-7),10~(-8),10~(-9),10~(-10) mol/L)of calcipotriol for 24 or 48 hours.Subsequently,MTT assay,NaoH assay.Dopa-oxidase assay,Western blot and semiquantitative RT-PCR were used to measure the cell proliferation of,melanin synthesis by.tyrosinase activity,protein and mRNA expression levels in the melanocytes.respectively.Those untreated melanocytes served as the control.Results The calcipotriol between 10~(-9) and 10~(-5) mol/L had no significant effect on the proliferation of cultured melanocytes(P＞0.05).while that of 10~(-9) and 10~(-8) mol/L increased tyrosinase activity by 137%and 123%,and enhanced melanin synthesis by 40.63%and 18.75%,respectively,compamd with untreated melanocytes(both P＜0.05).Moreover,the tyrosinase protein level increased by 270.4%(P＜0.05)in melanocytes treated with calcipotriol at 10~(-9) mol/L for 24 hours.The strongest tyrosinase activity and melanin synthesis was observed in melanocytes treated with calcipotriol of 10~(-9) moI/L.Conclusions The proliferation of melanocytes is unaffected by calcipotriol at 10~(-9) to 10~(-5) mol/L,but it can elevate the expression of tyrosinase protein,enhance tyrosinase activity,and promote melanin synthesis in melanocytes.

Objective To detect the mutations of pigment epithelium derived factor (PEDF) gene in a human malignant melanoma cell line A375. Methods A375 cells and control melanocytes obtained from circumcised prepuce were cultured, genomic DNA was extracted from these cells. All eight exons of PEDF gene were scanned by single strand conformation polymorphism analysis ofpolymerase chain reaction products (PCR-SSCP) in both A375 cells and control melanocytes. DNA sequencing was performed for the PCR products separated into electrophoretic bands with altered mobility. Results Altered mobility was observed with SSCP analysis in amplicons of exon 3, 4, 5, 6 and 7, with the most obvious alteration occurred in exon 5 and 6. DNA sequencing revealed mutations in both exon 5 and 6. The common type of mutations was single base-deletion in exon 5 and single base-substitution in exon 6. Conclusion Mutations of PEDF gene may contribute to the development of human malignant melanoma.

Objective To probe into the content of DNA Topo Ⅱ in osteosarcoma after chemotherapy.Methods 30 patients with osteosarcoma received two courses of chemotherapy treatment before the surgical resection of the tumor tissue.Then immunohistochemistry was used to detect the content of Topo Ⅱ in tissues and detected its relationship in pathology.Results There were 8 out of 30 cases in which Topo Ⅱ was presented positive in osteosarcoma (26.7 ％).The protein content of Topo Ⅱ was unrelated to the patient' s age,gender,degree of tumor malignancy,tumor location and translocation or Enneking staging (P ＞ 0.05),but related to patients survival rate (P ＜ 0.05).Conclusion Patients with lower expression of Topo Ⅱ are more likely to have poor prognosis.

Objective To study the clinical, histopathologic and ultrastructural characteristics of achromic naevus (AN). Methods Clinical data, including sex, age, age of onset, pattern of lesions, involved sites, shape and number of lesions and associated systemic diseases, were collected from 85 patients with AN. Skin melanin index was detected in 34 lesions of 19 patients with AN, 30 lesions of 12 patients with vitiligo and 64 contralateral normal skin islands of the 31 patients. Reflectance confocal microscopy (RCM) was performed to analyze the lesion, normal skin and junctional area between lesional and normal skin of 62 patients with AN. Tissue samples were obtained from lesions and perilesional normal skin of 17 patients with AN and subjected to pathological examination as well as ultrastructural study with transmission electron microscopy; also, skin biopsy specimens were immunostained for tyrosinase, HMB45, tyrosinase-related protein-1 (TRP-1), TRP-2 and CD117. Results Of the 85 patients with AN, 23 (27.1%) developed lesions at birth, and 21 (24.7%) after 3 years of age; 72 (84.7%) had irregularly shaped lesions, 54 (63.5%) had only a single lesion. The mean melanin index and relative melanin index of AN lesions were 186.56 ± 52.86 and 80 ± 11, respectively, significantly lower than those in normal skin islands (223.88 ± 63.19 and 100, both P < 0.01), but higher than those in depigmented lesions from 12 patients with vitiligo (128.57 ± 64.31 and 60 ± 20, both P < 0.01). RCM revealed a decline in the number of melanocytes and brightness of melanin caps, even distribution of melanin in lesions, as well as obscure demarcation between lesions and normal skin from patients with AN. Fontana-Masson stain showed that the melanin content was lower in lesions than in perilesional skin (1810.12 ± 327.96 vs 2064.24 ± 260.41) from patients with AN. Microscopic examination demonstrated a decrease in melanocyte and melanosome number, presence of immature melanocytes at stage Ⅱ and Ⅲ in cytoplasm and dendrites of melanocytes and keratinocytes, aggregated melanosomes in affected keratinocytes in lesions of AN. In 17 patients with AN, the relative expression levels of tyrosinase and TRP-1 were 1827.35 ± 307.09 and 6102.54 ± 1642.64, respectively, in normal skin specimens, significantly higher than those in lesional skin (1477.35 ± 224.05, 5322.33 ± 1565.26, both P< 0.01); no statistical difference was observed in the expression levels of HMB45, TRP-2 or CD117 between lesional and normal skin. Conclusions AN is an early-onset, nonfamilial aggregated, stable leukoderma with irregular margins, and in lesions of AN, the number of both melanocytes and melanosomes is decreased with the presence of immature melanosomes. The measurement of relative melanin index and reflectance confocal microscopy may offer a non-invasive approach to the diagnosis of AN.