Cell Line, Tumor ; Choriocarcinoma ; metabolism ; Chorionic Gonadotropin ; pharmacology ; Female ; Humans ; Tissue Inhibitor of Metalloproteinases ; metabolism

Objective To compare the effects of fentanyl,sufentanil and remifentanil on the immune function of dendritic cells in human umbilical cord blood.Methods Human umbilical cord blood mononuclear cells were obtained by density gradient centrifugation and seeded in 24-well plates with a density of 1 × 106/ml (2ml/hole).The cells were randomly divided into 7 groups (n =15 each):control group (group C),fentanyl 1.0 ng/ml group (group F1),fentanyl 5.0 ng/ml group (group F5),sufentanil 0.1 ng/ml group (group S1),sufentanil 0.5 ng/ml group (group S5),remifentanil 1.0 ng/ml group (group R1),and remifentanil 5.0 ng/ml group (group R5).The cells were incubated for 10 days in serum-free culture medium containing 50 ng/ml recombinant human granulocyte colony stimulating factor,10 ng/ml recombinant human interleukin-4 or the corresponding concentration of fentanyl,sufentanil or remifentanil,and then 50 ng/ml recombinant human tumor necrosis factor alpha was added to the culture medium and the cells were incubated for another 4 days in the seven groups.Three holes in each group were chosen and the cell morphology was examined with inverted microscope.Six holes in each group were chosen for determination of the concentration of IL-12 in the supernatant and expression of CD80/CD86.Six holes in each group were chosen for measurement of the cell viability.Results Compared with group C,the concentration of IL-12 and cell viability were significantly decreased and the expression of CD80/CD86 was down-regulated in groups F5,S1,S5,R1 and R5 (P ＜ 0.05).The concentration of IL-12,cell viability and expression of CD80/CD86 were significantly lower in groups S1 and R1 than in group F1 (P ＜ 0.05).Compared with group F5,the concentration of IL-12 was significantly decreased in group S5,and the concentration of IL-12 and cell viability were significantly decreased and the expression of CD80/CD86 was down-regulated in group R5 (P ＜ 0.05).The concentration of IL-12 and cell viability were significantly lower in group R1 than in group S1 (P ＜ 0.05).The concentration of IL-12,cell viability and expression of CD80/CD86 were significantly lower in group R5 than in group S5 (P ＜ 0.05).Conclusion Remifentanil has stronger inhibitory effect on the immunological function of dendritic cells in human umbilical cord blood than sufentanil,and the inhibitory effect of sufentanil is stronger than that of fentanyl.

Objective To analyze retrospectively the HRCT signs in the patients with invasive pulmonary aspergillosis and evaluate the value of HRCT in the diagnosis of invasive pulmonary aspergillosis.Methods The cilinical and HRCT images of 30 cases with invasive pulmonary aspergillosis diagnosed by fiber bronchoscopy, CT guided biopsy or sputum culture were collected.HRCT images were analyzed and the HRCT signs were summarized by two experienced chest imaging radiologists.Results 19 patients had a variety of CT signs, the sign of tree in bud was seen in 8 cases, bronchial stenosis 6 cases, bronchiectasis 8 cases, ground-glass opacity 8 cases, acinic nodules 10 cases, nodular lesions 12 cases, acinar nodules with halo sign 4 cases, nodules with halo sign 9 cases, cavity 10 cases.11 cases only had a single CT sign, the sign of tree in bud was seen in 2 cases, bronchiectasis 2 cases, ground-glass opacity 1 case, acinar nodules 2 cases, nodules with halo sign 2 cases, cavity 2 cases.The occurrence rates of various signs in 30 cases were as follows, the sign of tree in bud was 33.3%, bronchial stenosis 20%, bronchiectasis 33.3%, ground-glass opacity 30%, acinar nodule 40%, nodular lesion 46.6%, halo sign 53.3%,cavity 40%.Conclusion The main HRCT signs in the patients with invasive pulmonary aspergillosis includes tree in bud, bronchial stenosis, bronchiectasis, ground-glass opacity, acinar nodules, nodal lesions,pulmonary cavity and halo sign.The signs of bronchiectasis with tree in bud sign, acinar nodule and halo sign in the HRCT images are highly specific in the diagnosis of invasive pulmonary aspergillosis.

OBJECTIVETo study the medium and long term effects of perfusion of bone marrow stromal stem cells through optional artery for the treatment of non-traumatic femoral head avascular necrosis.

METHODSFrom January 2000 to December 2004,62 cases(78 hips) with non-traumatic femoral head necrosis accepted optional artery marrow stromal stem cells infusion treatment and had complete follow-up data, including 43 hips of 35 males and 35 hips of 27 females with an average age of 36.3 years old (22 to 54). According to preoperative imaging data, 16 hips were ARCO I stage, 52 hips were II stage, 10 hips were III a stage. Harris score was 64.94 +/- 8.12 preoperatively. Postoperative Harris score at the last follow-up, imaging changes,DSA vascular changes were analysis.

RESULTSThe patients were followed up for 9 to 13 years (means 11 years). By the end of the follow-up, a total of 18 hips got artificial joint replacement, 10 hips of preoperative ARCO I, II period got artificial hip joint replacement, 8 hips of IIIa period got hip artificial joint replacement. Harris score was 71.21 +/- 0.19 at the end of the follow-up, it was obviously enhanced compared with preoperative. DSA showed blood vessels of supply the femoral head increased thickening.

CONCLUSIONPerfusion of bone marrow stromal stem cells through optional artery can effective treat non-traumatic femoral head necrosis of ARCO I, II period, it can make the femoral circumflex artery and its branches increased thickening.

Adult ; Angiography, Digital Subtraction ; Arthroplasty, Replacement, Hip ; Female ; Femur Head Necrosis ; therapy ; Follow-Up Studies ; Humans ; Male ; Mesenchymal Stem Cell Transplantation ; Middle Aged

Objective To study treatment of Vancouver type-B periprosthetie femoral fractures after total hip arthroplasty.Methods There were 10 cases with Vancouver type-B periprosthetic femo- ral fractures after total hip arthroplasty being treatment,including three cases with type-B1 undergone open reduction and allografi strut to fix the fracture,two with type-B2 undergone open reduction and revi- sion with a long stem and five with type-B3 undergone open reduction,revision with a long stem and al- lograft strut to restore bone.The mean duration of follow-up was 27 months(8-36 months).The Harris Hip Score and radiographs were used to evaluate the outcome.Failure of the procedure.was defined as the need for revision surgery because nonunion of fracture,implant loosening,and infection.Results All cases obtained successful fracture healing,with no stem loosening or infection.Of all,nine cases were a- ble to walk by themselves but one needed aid in walking.The Harris Hip Score was 83 at the time of the final follow-up.Osseous union of the allograft to the host femur occurred in eight hips and mild graft re- sorption in two.The cotex thickness of host femur was increased more than 3-5 mm.Conclusions Stem stability and bone quality are important factors determining the outcome of treatment for periprosthet- ic femoral fracture after hip arthroplasty.Good outcome can be achieved by adopting different treatments according to sub-classification of Vancouver type-B fractures.The allograft strut for the treatment of a Vancouver type-B periprosthetic femoral fracture can not only provide fixation,but also make fracture heal fast and augment bone mass and strength.

12E7 Antigen ; Adolescent ; Adult ; Antigens, CD ; metabolism ; Biomarkers, Tumor ; metabolism ; Brain Neoplasms ; secondary ; Cell Adhesion Molecules ; metabolism ; Child ; Child, Preschool ; Diagnosis, Differential ; Extremities ; Female ; Follow-Up Studies ; Humans ; Immunohistochemistry ; In Situ Hybridization, Fluorescence ; Infant ; Ki-67 Antigen ; metabolism ; Male ; Neuroectodermal Tumors, Primitive ; metabolism ; pathology ; Oncogene Proteins, Fusion ; metabolism ; Repressor Proteins ; metabolism ; Sarcoma, Ewing ; metabolism ; pathology ; Sarcoma, Synovial ; diagnosis ; metabolism ; pathology ; surgery ; Soft Tissue Neoplasms ; diagnosis ; metabolism ; pathology ; surgery ; Vimentin ; metabolism ; Young Adult

OBJECTIVETo study the effect of short double-stranded RNA (dsRNA) on F10 gene expression in KLE cells and the effect of F10 knock-down on KLE cell apoptosis.

METHODSThe short dsRNA specifically targeting F10 gene prepared by in vitro transcription was transfected into KLE cells via lipofectamine 2000. The expression of F10 mRNA in the transfected KLE cells was detected by real-time quantitative RT-PCR, and the apoptosis of the cells was assayed by flow cytometry.

RESULTSReal-time quantitative RT-PCR demonstrated that transfection of the KLE cells with the short dsRNA induced effective knock-down of F10 gene, and transfection of the cells with 20 nmol/L dsRNA for 48 h decreased the expression of F10 mRNA by 83%. Compared with the control, the apoptosis index of the transfected KLE cells increased from 0.36% to 8.91%.

CONCLUSIONF10 gene in KLE cells can be specifically knocked-down with dsRNA prepared by in vitro transcription, and the down-regulation of F10 gene induces apoptosis of KLE cells.

Adenocarcinoma ; genetics ; pathology ; Apoptosis ; genetics ; Cell Line, Tumor ; Endometrial Neoplasms ; genetics ; pathology ; Female ; Gene Knockdown Techniques ; Genes, Neoplasm ; genetics ; Humans ; RNA Interference ; RNA, Messenger ; genetics ; metabolism ; RNA, Small Interfering ; genetics ; Reverse Transcriptase Polymerase Chain Reaction ; Transfection

OBJECTIVETo investigate the significance of trophinin expression in human oocytes and preimplantation embryos.

METHODSThe expression of trophinin in 9 human oocytes, 16 blastomeres and 12 blastocysts were detected by indirect immunofluorescence assay and observed under laser scanning confocal microscope.

RESULTSHuman oocytes, blastomeres and blastocysts were all positive for trophinin expression, and the positivity intensified significantly in the course of the embryonic development (P<0.05).

CONCLUSIONTrophinin may play an important role in human embryo implantation by mediating homophilic adhesion between the embryo and the endometrium during the implantation window.

Blastocyst ; metabolism ; Cell Adhesion Molecules ; biosynthesis ; Female ; Fluorescent Antibody Technique, Indirect ; Humans ; Microscopy, Confocal ; Oocytes ; metabolism ; Pregnancy

OBJECTIVETo explore the role of matrix metalloproteinase-2 (MMP-2) and tissue inhibitor of MMP-2 (TIMP-2) in the pathogenesis, development and prognosis of gestational trophoblastic disease (GTD).

METHODSIn situ hybridization and immunohistochemistry were utilized for MMP-2/TIMP-2 mRNA and protein detection in normal chorion of women with early gestation, hydatidiform mole, invasive mole, or choricarcinoma.

RESULTSThe results revealed that specific staining for mRNA and protein of MMP-2 and the expression of TIMP-2 was reduced in normal chorion of early gestation. In GTD ranging from hydatidiform mole, invasive mole to choricarcinoma, MMP-2 expression tended to increase while TIMP-2 expression underwent an invert change. The positivity rate of MMP-2 and TIMP-2 in gestational trophoblastic tumor group was higher than that of the normal chorion of early gestation group and hydatiform mole group (P<0.05 and P<0.001, respectively).

CONCLUSIONA disrupted balance between the activation and inhibition of MMP-2 plays a critical role in the pathogenesis, progression and metastasis of GTD.

Choriocarcinoma ; genetics ; metabolism ; Female ; Gestational Trophoblastic Disease ; genetics ; metabolism ; Humans ; Hydatidiform Mole ; genetics ; metabolism ; Hydatidiform Mole, Invasive ; genetics ; metabolism ; Immunohistochemistry ; In Situ Hybridization ; Matrix Metalloproteinase 2 ; biosynthesis ; genetics ; Pregnancy ; Tissue Inhibitor of Metalloproteinase-2 ; biosynthesis ; genetics ; Trophoblasts ; metabolism ; Uterine Neoplasms ; genetics ; metabolism