Bone Neoplasms ; diagnosis ; pathology ; Breast Neoplasms ; diagnosis ; pathology ; Delayed Diagnosis ; Diagnostic Errors ; Female ; Frozen Sections ; Humans ; Intraoperative Period ; Retrospective Studies ; Thyroid Neoplasms ; diagnosis ; pathology

Objective To increase the awareness of thyroid diseases through observing the relationship between ultrasound indications of thyroid and thyroid disease,and to enhance the understanding of thyroid disease through outpatient data.Methods Two hundred women aged 25 to 50 with thyroid imaging data were selected from the Department of Ultrasonography,the First Affiliated Hospital of Harbin Medical University.Seven indications including age,body weight,thyroid volume,the number of nodules,nodule size,nature of nodules and thyroid disease were recorded.Thyroid cases were divided into four groups based on their sonographic changes of color Doppler ultrasound:normal group (136 cases):sonographic changes of thyroid were approximately normal ; mild degree group (9 cases):consisting of patients with mild thyroid disease,diffused thyroid enlargement or combined cystic nodules; moderate degree group (38 cases):consisting of patients with moderate thyroid disease,hyperthyroidism or hypothyroidism; severe degree group (17 cases):consisting of patients with severe thyroid disease,thyroiditis and/or with hemorrhage and calcification.Data were analyzed using the method of clinical case observation and SPSS 16.0.Results We found that in mild degree group the discriminant coefficients of thyroid volume,the nature of thyroid nodules and nodule size were 0.085,0.169 and 0.695; but in sever degree group the corresponding values were 0.158,0.344 and 0.484,respectively,and the difference between the two groups was statistically significant (x2 =43.3,df =18,P ＜ 0.01).Conclusions The nature,size and area of thyroid nodules are closely related to the progression of thyroid disease.The color Doppler ultrasound data of outpatients as a part of hospital statistics have important theoretical and practical value.

Objective To explore the role of intercellular adhesion molecule-1(ICAM-1)and lym- phocyte function-associated antigen-I(LFA-1)in the pathogenesis of Sjgren's syndrome(SS)and provide a theoretical basis for clinical therapy.Methods Immunohistochemical method was used to detect these two cellular adhesion molecules in labial salivary glands of primary Sjgren's syndrome patients and 15 healthy controls.Semiquantitative analysis was performed by image analysis software.Results①In salivary gland samples,the expression of both ICAM-1 and LFA-1 was significantly higher compared to that of controls(P

Abnormalities, Multiple ; blood ; diagnosis ; metabolism ; physiopathology ; Child ; Diagnosis, Differential ; Dwarfism ; blood ; diagnosis ; metabolism ; physiopathology ; Estradiol ; blood ; Female ; Follicle Stimulating Hormone ; blood ; Humans ; Luteinizing Hormone ; blood ; Silver-Russell Syndrome ; blood ; diagnosis ; metabolism ; physiopathology

BACKGROUND:Sodium butyrate, a histone deacetylase inhibitor, can inhibit cell proliferation, and induce apoptosis and differentiation of various cancer cells. However, the role of sodium butyrate combined with tumor necrosis factor-related apoptosis-inducing ligand (TRAIL) on lung cancer stem cells remains unclear. OBJECTIVE:To explore the effect of sodium butyrate combined with TRAIL on biological behaviors of lung cancer stem cells. METHODS:Magnetic bead separation was used to separate lung cancer stem cells (CD133+) from human lung adenocarcinoma A549 cells. After the lung cancer stem cells were treated with simple DMEM/F12, DMEM/F12 containing sodium butyrate (5 mmol/L), TRAIL (50 μg/L) or sodium butyrate combined with TRAIL, the cell proliferation within 96 hours of culture was determined by MTT assay; the apoptosis within 24 hours of culture was measured by flow cytometry; the cell migration within 48 hours of culture was detected by cell scratch test; the expression levels of pluripotent transcription factors (Oct4, Sox2 and Nanog) within 48 hours of culture were detected using western blot analysis. RESULTS AND CONCLUSION:The CD133+ lung cancer stem cells were successfully enriched from human lung adenocarcinoma A549 cells. MTT assay showed that sodium butyrate and TRAIL significantly inhibited the proliferation of lung cancer stem cells (P< 0.05), and the combination effect was even stronger (P < 0.05). Results from flow cytometry analysis and scratch test showed that sodium butyrate or TRAIL induced apoptosis and inhibited cell migration of lung cancer stem cells (P < 0.05), and the combination of sodium butyrate and TRAIL showed a stronger effect (P < 0.05). In addition, the expression levels of Oct4, Sox2 and Nanog were significantly down-regulated by sodium butyrate (P < 0.05), TRAIL or sodium butyrate combined with TRAIL, and the combination effect was stronger (P < 0.05). In conclusion, sodium butyrate and TRAIL have synergistic effects on lung cancer stem cells, indicating a new way for treatment of lung cancer.

Objective To investigate the value of whole-liver MR perfusion imaging(MRPI)for early detection of coagulative necrosis after percutaneous ethanol injection(PEI)in rabbit liver VX_2 tumors. Methods VX_2 tumor cell suspension was inoculated into rabbit liver and liver VX_2 tumors[diameter of (2.6?0.6)cm]were induced in 10 male rabbits.MR T_1 WI and T_2 WI were performed to monitor the development of the liver tumor on the 2~(nd)and 3~(rd)week after inoculation.Whole-liver MRPI was performed in the 10 rabbits with liver VX_2 tumors before and 6 days after PEI therapy(1.0 ml ethanol was injected into the most enhanced tumor region under CT guiding).Signal intensity(SI)values of untreated tumor parts and treated areas 6 days after PEI were recorded respectively.The steepest slope(SS)and bolus arrival time (TO)of SI-time curves were measured.The t-Student test was used in statistical analysis of the data.Results There was significant difference in MRPI data between untreated tumor parts[TO:(16.0?1.2)s and SS: 38.9?2.2]and treated areas[TO:(50.8?5.9)s and SS:6.0?1.2]6 days after PEI(t was 15.8 and -39.6 respectively,P

46, XY Disorders of Sex Development ; complications ; genetics ; pathology ; surgery ; Female ; Follow-Up Studies ; Humans ; Middle Aged ; Ovarian Neoplasms ; pathology ; surgery ; Sex Chromosomes ; Sex Cord-Gonadal Stromal Tumors ; pathology ; surgery

Objective To open out new method,we probe into immune function of??ST and NKT cells in NSCLC.Methods The peripheral blood cells were stained with antibodies labeled with fluorescence in NSCLC,??T,NKT and their set group cells were counted with flow cytometry.Results The absolute counts of??T,CD~+_(56)??T,CD~-_(56)??T,NKT and??T~+ NKT cells in NSCLC was significantly lower than that of normal controls.The relative counts of NKT,??T~+ NKT,??T~-NKT and CD~+_56??T cells in NSCLC was not sig- nificantly lower than that of normal control.The absolute counts of??T cells in NSCLC positively correlated to the number of NKT cells,(r=0.426,P=0.009).Conclusion The absolute counts of??T,NKT and their set ground cells in NSCLC was significantly lower than that of normal controls.In NSCLC the relation of the??T and NKT had positive correlation.

Objective To explore whether the low-intensity pulsed ultrasound (LIPU) could induce apoptosis on SMMC-7721 cells and to explore the underlying mechanism.Methods The SMMC-7721 cells were randomly divided into 4 groups:a blank control group,which was subject to sham exposure to ultrasound,and 3 ultrasound intervention groups exposed to ultrasound at intensities of 0.5,1.3 and 2.0 W/cm2,respectively.Then they were incubated for 6 h.The cell apoptosis,necrosis and changes of cell cycles were measured using the flow cytometry.The transmission electron microscope (TEM) was used to observe microstructural changes in the cells.The agarose gel electrophoresis (AGE) was used to examine the DNA fragmentation,and Western-blotting was employed to assess the protein expression of caspase-3.Results The average cell apoptosis rate of the 3 intervention groups were 4.66％,8.99％ and 32.41％,respectively.The percentage of cells in G2 phase increased significantly and those in G1 phase decreased significantly in the 3 intervention groups compared to the blank control group at the same time points.In the intervention groups,significant cell apoptosis was observed under TEM,and DNA ladders was seen in AGE,with DNA fragments appearing obviously when cells were incubated for 6 h and 9 h after ultrasound exposure.In intervention groups subject to 1.3 and 2.0 W/cm2 ultrasound exposure,the protein expression of caspase-3 was significantly higher than that of the control group.Conclusion LIPU can inhibit the proliferation and induce apoptosis of SMMC-7721 cells with a dose-dependent feature.The possible mechanism underlying the LIPU-induced cell apoptosis might be related to the activation of the mitochondria pathway,and especially the caspase-3 protein.

Background and purpose:Low intensity ultrasound (LIUS) can kill cancer cells and promote their apoptosis. However, it is still unknown how it affects the migration and invasion of tumor cells. This study aimed to explore the effect of LIUS on human hepatocellular line MHCC97H in migration and metastasis and the possible mechanismin vitro.Methods:According to the intensity of ultrasonic irradiation, 4 experimental groups were established: control group (0 W/cm2), 0.5 W/cm2, 1.0 W/cm2 and 1.5 W/cm2group. The migration and invasion ability of hepatocellular cells was detected by scratch assay and Transwell migration and invasion assay after the irradiation of LIUS. The changes of cytoskeleton after irradiation were observed by microscope and F-actin green lfuorescence staining. The expressions of MMP-2 and MMP-9 were examined by real-time lfuorescent quantitative polymerase chain reaction (RTFQ-PCR) and Western blot.Results:Low intensity ultrasound (≤1.5 W/cm2) promoted the migration and invasion of hepatocellular line MHCC97H. Scratch assay and Transwell assay showed much more cells under irradiation migrated through membrane than untreated. It was found that morphology of liver cancer cells changed after LIUS irradiation using optical microscope and lfuorescence microscope. The results of RTFQ-PCR and Western blot showed upregulation of MMP-2 expression by LIUS in MHCC97H and high expression of MMP-9 mRNA. Conclusion:Low intensity ultrasound may promote the migration and invasion of MHCC97H through changing cytoskeleton and upregulating protein expression of MMP-2.