Objective To use tri-operator breast blood oxygen imaging in diagnosis of early stage breast cancer.Methods To analysis and diagnosis eighty cases with the technology of breast blood oxygen imaging.Results The accurate rate of the diagnosis made by technology of breast blood oxygen imaging was 93.75%,the sensitivity of diagnosis was 90.63%,the specificity was 95.83%.Conclusions The technology of breast blood oxygen imaging without the radiation may be a better methods to diagnosis the breast diseases,which has the higher sensitivity than infrared rays examination on breast cancer diagnosis.

The opening of laboratories in universities is one of important parts in teaching reform and it is necessary for bringing up high-qualified students.Combined with the practical teaching,we have a primary discussion with the problems of the laborato- ry opening and put forward some suggestions and measures.

Adult ; Athletic Injuries ; epidemiology ; China ; epidemiology ; Fatigue ; epidemiology ; Female ; Humans ; Male ; Periostitis ; epidemiology ; Students ; Young Adult

OBJECTIVETo evaluate the clinical effect of one stage anterior and posterior fusion and posterior fixation for the treatment of thoracic and lumbar spinal tuberculosis.

METHODSFrom March 2003 to December 2006, one stage anterior and posterior fusion and posterior fixation were performed to treat 23 patients who suffered thoracic and lumbar spinal tuberculosis. There were 15 males and 8 females with an average of 37.6 years (17-61 years). 4 cases' tuberculose focus were in thoracic vertebra, 8 cases in thoracolumbar, 11 cases in lumbar.

RESULTSThe average follow up period was 28.7 months (9-40 months). The symptoms of all patients had primarily relieved and the patients can ambulate at 2-3 weeks after treatment. At the 6th after operation, the X-ray showed interbody fusion. Frankel grading of 16 patients with incomplete paraplegia were improved averagely 1.62 grades. The major complications including 2 cases of temporary sinus formation, 1 case of fixtor breaking and 1 case of recurring (owing to an inadequate postoperative chemotherapy).

CONCLUSIONOne stage anterior and posterior fusion and posterior fixation can effectually resect focus, rebuild stability of spine, promote interbody fusion and recovery of incomplete paraplegia in treating thoracic and lumbar spinal tuberculosis.

Adolescent ; Adult ; Female ; Fracture Fixation, Internal ; Humans ; Lumbar Vertebrae ; surgery ; Male ; Middle Aged ; Postoperative Complications ; Spinal Fusion ; Thoracic Vertebrae ; surgery ; Treatment Outcome ; Tuberculosis, Spinal ; surgery ; Young Adult

OBJECTIVETo investigate the inhibitory effects of antisense oligonucleotides to different sequences on VEGF gene expression by human hepatoma cells.

METHODSSMMC7721 cells were cultured under normoxic or hypoxic conditions for 24 h, followed by being transfected with different antisense oligonucleotides (A06513 to cap structure, A06514 to translation initiation, A06515 to Exon-3 and A06516 to translation terminal). The total RNAs from the cells were extracted and the VEGF expression were examined with RT-PCR. The relative concentrations of VEGF transcripts in SMMC772 cells from different groups were determined using GAPDH (glyceraldehyde-3-phosphate dehydrogenase) cDNA as internal standard.

RESULTSIn response to the hypoxic challenge, SMMC7721 cells upregulated VEGF mRNA; Comparative to the control (no oligonucleotides), A06513, A06514, A06515, and A06516 had obvious sequence-specific inhibitory effect on VEGF gene expression, with the ratio of VEGF over GAPDH of 0.49+/-0.08, 0.71+/-0.12, 0.72+/-0.11 and 0.86+/-0.12, respectively (F=12.21, P< 0.05). A06513 showed the strongest inhibitory effect (P<0.01).

CONCLUSIONThe antisense oligonucleotides complementary to VEGF cap structure, may become a potential alternative for antisense gene therapy of HCC.

Gene Expression Regulation, Neoplastic ; Humans ; Liver Neoplasms ; genetics ; therapy ; Oligonucleotides, Antisense ; pharmacology ; Reverse Transcriptase Polymerase Chain Reaction ; Vascular Endothelial Growth Factor A ; antagonists & inhibitors ; genetics

OBJECTIVETo study the genotoxicity induced by organic bentonite particles in vitro.

METHODSHuman B lymphoblast cells (HMy2.CIR) were exposed to organic bentonite particles at the doses of 0, 1.88, 3.75, 7.50 and 15.00 µg/ml for 24, 48 and 72 h, calcium sulfate (30 µg/ml) and SiO2 (30 and 240 µg/ml) served as negative and positive controls, respectively. The genotoxicity of organic bentonite particles and soluble fraction was detected using comet assay and Cytokinesis-block micronucleus (CBMN) assay.

RESULTSThe results of comet assay indicated that % tail DNA increased with the exposure doses and time in organic bentonite group, % tail DNA at the dose of 15.00 µg/ml for 24 h, 48 h and 72 h in organic bentonite group were 3.20 ± 0.19, 4.63 ± 0.88 and 9.49 ± 1.31 respectively which were significantly higher than those in calcium sulfate group (1.40 ± 0.11, 1.37 ± 0.22 and 0.90 ± 0.16) and those in 30 µg/ml SiO2 group (1.83 ± 0.21, 1.41 ± 0.27 and 2.48 ± 0.25) (P < 0.01). The results of CBMN assay showed that micronucleus frequencies (MNF) in organic bentonite group (except for 1.88 µg/ml for 24 h) were significantly higher than those in 30 µg/ml calcium sulfate group (MNF for 24, 48 and 72 h were 1.33‰ ± 0.58‰, 1.33‰ ± 1.15‰ and 1.33‰ ± 0.58‰) and those in 30 µg/ml SiO2 group (2.00‰ ± 0.00‰, 1.68‰ ± 0.58‰ and 2.33‰ ± 0.58‰) (P < 0.01). The results of two assays demonstrated that the soluble fraction of organic bentonite did not induce the genotoxicity.

CONCLUSIONThe organic bentonite dusts can induce the genotoxicity in vitro, which may be from the particle fraction.

Bentonite ; toxicity ; Cells, Cultured ; Comet Assay ; DNA Damage ; Humans ; Lymphocytes ; drug effects ; Micronucleus Tests ; Mutagenicity Tests ; Quartz ; toxicity

OBJECTIVETo evaluate the clinical efficacy of zoledronic acid combined with chemotherapy in the management of skeletal metastasis of non-small cell lung cancer (NSCLC) and investigate the value in urine amino-terminal telopeptide of type I collagen (uNTX) and serum bone specific alkaline phosphatase (sBALP) in monitoring skeletal metastasis of NSCLC.

METHODSFrom February, 2007 to January, 2009, 32 NSCLC patients with bone metastases received treatment with zoledronic acid at the dose of 4 mg given every 3 weeks and platinum-based chemotherapy (each cycle lasting for 3 weeks). Before and during the treatments, uNTX and sBALP were measured in these patients using ELISA and precipitation with wheat germ lectin, respectively. The patients were followed up for skeletal-related events (SREs) and status of survival.

RESULTSA significant decrease occurred in the pain scores and analgesic use in the patients after the therapy. SREs were not observed during the treatment. Serum creatinine and calcium levels underwent no significant variation during the treatment. Eleven patients reported 14 possible zoledronic acid-related adverse events. The concentration of uNTX and sBALP in patients with bone metastases was above the upper limit of the normal range. A positive correlation was observed between the levels of the markers and the extent of bone metastases. At the third month, uNTX and sBALP were significantly lowered, but radionuclide whole-body bone imaging showed no obvious changes. Of the 32 patients, 24 had elevated uNTX values, which became normal after the treatment in 15 patients and remained elevated in the other 9 patients. SREs occurred in these two subgroups at the rates of 53% and 89% (P=0.039), respectively. Twenty-six patients had elevated sBALP level, and 16 of them exhibited normal sBALP level after the treatment. The incidences of SREs in the patients with elevated and normal sBALP level were 50% and 90% (P=0.038), respectively. The levels of uNTX/Cr and sBALP were not correlated to the survival of the patients.

CONCLUSIONSZoledronic acid combined with chemotherapy is an effective treatment for NSCLC with bone metastases. Zoledronic acid is safe and well tolerated. Urinary NTX and serum BALP have a high value in the diagnosis, therapeutic effect monitoring and SRE prediction of NSCLC with bone metastases.

Adult ; Aged ; Alkaline Phosphatase ; blood ; Antineoplastic Combined Chemotherapy Protocols ; therapeutic use ; Biomarkers, Tumor ; metabolism ; Bone Density Conservation Agents ; therapeutic use ; Bone Neoplasms ; drug therapy ; metabolism ; secondary ; Carcinoma, Non-Small-Cell Lung ; drug therapy ; metabolism ; pathology ; Collagen Type I ; urine ; Diphosphonates ; therapeutic use ; Drug Therapy, Combination ; Female ; Humans ; Imidazoles ; therapeutic use ; Lung Neoplasms ; drug therapy ; metabolism ; pathology ; Male ; Middle Aged ; Peptides ; urine

We constructed a home care platform for orthopedics,and clinical nurse specialists in orthopedics in Jiangsu Province opened online clinics on it.Patients with knee or hip joint replacement could be added to the platform,and the clinical nurse specialists provided patients with professional home care service when discharged.In the interviews of clinical nurse specialists,they said that the application of the platform was conducive to enhance their own values,and expressed their willingness to continue to use it.The joint function and quality of life scores of the intervention group were significantly higher than those of the control group (P＜0.001).The application of the home care platform is conducive to give full play to the role of clinical nurse specialists to provide professional home care services for patients.

Objective To study the thermal insulation properties of vacuum insulated panel(VIP)used as materials for blood transportation kits.Methods A VIP transportation kit was taken as test group,and a conventional transportation kit was taken as control.Phase change cool storage materials of the same amount and 4℃water bags were put into both kits.A recordable electronic thermometer was used to record the temperature within the two kits,and free hemoglobin(FHb)and potassium ion concentration were measured at 0, 4, and 7 days after blood storage.Results The temperature in the conventional transportation kit increased faster after 36 h, and was significantly higher than in the VIP transportation kit until 60 h.Besides,the VIP transportation kit kept the temperature under 10℃ for(60.7 ±0.6)h, compared to (54.2 ±3.0)h in the conventional transportation kit.FHb concentration was significantly lower in the VIP transportation kit[(605.26 ±74.63)mg/L]than in the conventional transportation kit[(1327.60 ±187.41)mg/L]at day 7(d 7),so was the potassium ion concentration in the VIP transportation kit[(22.7 ±0.4)mmol/L]compared to[(24.6 ±0.6) mmol/L]in the transportation kit at d 7.Conclusion The VIP transportation kit keeps the temperature under 10℃ for a longer time,and the blood quality of preservation is better than that of the conventional transportation kit.Novel heat preservation material can improve health support ability,and is of great value and significance.

Osteosarcoma is the most common primary malignant bone cancer in children and adolescents. Emerging evidence has suggested that the capability of a tumor to grow is driven by a small subset of cells within a tumor, termed cancer stem cells (CSCs). Although several methods have been explored to identify or enrich CSCs in osteosarcoma, these methods sometimes seem impractical, and chemotherapy enrichment for CSCs in osteosarcoma is rarely investigated. In the present study, we found that short exposure to chemotherapy could change the morphology of osteosarcoma cells and increase sarcosphere formation in vitro, as well as increase tumor formation in vivo. Furthermore, methotrexate (MTX)-resistant U2OS/MTX300 osteosarcoma cells were larger in size and grew much more tightly than parental U2OS cells. More importantly, U2OS/MTX300 cells possessed a higher potential to generate sarcospheres in serum-free conditions compared to parental U2OS cells. Also, U2OS/MTX300 cells exhibited the side population (SP) phenotype and expressed CSC surface markers CD117 and Stro-1. Notably, U2OS/MTX300 cells showed a substantially higher tumorigenicity in nude mice relative to U2OS cells. Therefore, we conclude that chemotherapy enrichment is a feasible and practical way to enrich osteosarcoma stem cells.
Animals ; Antigens, Surface ; metabolism ; Antimetabolites, Antineoplastic ; pharmacology ; Bone Neoplasms ; metabolism ; pathology ; Cell Line, Tumor ; Cell Proliferation ; Drug Resistance, Neoplasm ; Humans ; Methotrexate ; pharmacology ; Mice ; Mice, Nude ; Neoplasm Transplantation ; Neoplastic Stem Cells ; drug effects ; pathology ; Osteosarcoma ; metabolism ; pathology ; Phenotype ; Proto-Oncogene Proteins c-kit ; metabolism