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Objective To investigate the differences between indocyanine green (ICG) fluorescence imaging plus methylene blue and plus Carbon Nanoparticles Suspension Injection for sentinel lymph node biopsy (SLNB)in breast cancer patients. Methods A total of 134 cases of early breast cancer patients performed SLNB from November 2013 to November 2016 were involved,of which 48 cases were performed with ICG fluorescence imaging plus methylene blue,and another 86 cases plus Carbon Nanoparticles Suspension Injection. Results There was no significant difference between ICG plus Methylene Blue group and ICG plus nano carbon group in terms of detection rate(P>0.05),detected numbers(P>0.05),sensitivity(P>0.05),accuracy(P>0.05)and false negative rate(P > 0.05). Age,and body mass index(BMI)exerted no influence on the detection rate and accuracy of SLNB in two groups(P>0.05). Conclusion ICG Fluorescence Imaging plus Methylene Blue showed similar detection rate , detected numbers , sensitivity , accuracy and false negative rate as it plus Carbon Nanoparticles Suspension Injection for SLNB in breast cancer patients ,and both of them can be performed easily and conveniently.
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Objective To explore the effect of psoralen on topoisomerase IIα(TopoIIα) expression of breast cancer stem cells.Methods CD44+CD24-/low breast cancer stem cells were sorted from MCF-7/ADR by magnetic-activated cell sorting(MACS).We observed the growth characteristics of these stem cells through optical microscope and detected the growth-inhibitory effects of psoralen on breast cancer stem cells by CCK-8 assay and IC50 of adriamycin and adriamycin combined with psoralen to calculate the reversal index.The mRNA and protein expressions of Topo IIα were detected using RT-PCR and Western blot, respectively.Results Under the optical microscope, breast cancer stem cells presented spheres.IC10 and IC20 of psoralen on breast cancer stem cells were (6.77±0.23)μg/mL and (10.36±0.21)μg/mL.IC50 of adriamycin and adriamycin combined with psoralen on breast cancer stem cells was (90.03±3.56)μg/mL and (21.47±0.82)μg/mL, the reversal index was 4.19.Psoralen significantly raised the expressions of Topo Ⅱα at mRNA and protein levels.Conclusion Psoralen reversed the resistance of adriamycin by increasing the gene and protein expressions of breast cancer stem cells Topo Ⅱα and the drug targets.
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Objective To evaluate the value of diffusion weighted imaging (DWI)in diagnosing active sacroiliitis of ankylosing spondylitis(AS)Methods 63 cases with AS confirmed clinically were included.The patients were evaluated by Bath ankylosing spondylitis disease activity index (BASDAI)score and examined by MRI with oblique coronal DWI and STIR sequence in the sacroili-ac joint.The ADC value and Spondyloarthritis Research Consortium of Canada (SPARCC)score were measured in all patients.Cor-relative analysis was performed among BASDAI score,SPARCC score and ADC value.Patients were divided into activity and stability group according to the condition,which were compared with the ADC features of the sacroiliac joint in healthy volunteers.Results The Spearman correlation analysis showed that in patients SPARCC score and ADC values (r =0.781,P <0.001 ),BASDAI score and ADC values (r=0.854,P <0.001),SPARCC score and BASDAI score (r =0.805,P <0.001)were positively correlated.The median ADC values in the sacroiliac joint of activity group (0.704×10 -3 mm2/s)was higher than that in the stable group(0.543× 10 -3 mm2/ s )and the control group (0.431×10 -3 mm2/ s).The ADC values between the activity、stability and control group were statistically significant differences.Conclusion SPARCC score and DWI are important indexes for MRI evaluation of sacroiliac ar-thritis activity.DWI is a fast imaging sequence,can be quantified by measuring the ADC value of the lesion area,and is the ideal choice for sacroiliac joint imaging.
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Objective To investigate clinical effect and safety of in vitro maturation(IVM)of human immature oocytes in infertile women with polycystic ovary syndrome by comparing with conventional in vitro fertilization(IVF)and intracytoplasmic sperm injection(ICSI).Methods From Jan.2003 to Dec.2009,157 infertile women with PCOS underwent 162 cycles IVM in Center for Reproductive Medicine,the First Affiliated Hospital of Anhui Medical University.In the mean time,109 patients with PCOS underwent 114 IVF/ICSI cycles as control group 1 and 106 patients with other factors underwent 106 IVF/ICSI cycles as control group 2.Treatment and outcome of pregnancy and infant were compared among those 3 groups.Results No statistically significant difference were found in terms of the positive rate of hCG in urine[35.7％(56/157),42.2％(46/109),44.3％(47/106)],the rate of clinical pregnancy[29.3％ (46/157),37.6％(41/109),41.5％(44/106)],the rate of entopic pregnancy[1.9％(3/157),1.8％ (2/109),0.9％(1/106)],the rate of miscarriage[18.6％(8/43),12.8％(5/39),20.9％(9/43)]and the rate of live-birth[22.3％(35/157),31.2％(34/109),32.1％(34/106)]among three grbups(IVM group,control group 1,control group 2,P ＞ 0.05).The rate of preterm labor,low weight newborn,mean birth weight,ratio of male to female did not show significantly difference among 3 groups(P ＞ 0.05).The average control ovarian stimulation was 6 days,the median dose of gonadotropin(Gn)was 675 IU,and the total hospital cost was(8392 ± 1328)RMB in IVM group,which were statistically lower than those in the other two control groups(P ＜ 0.01).The rate of multiple pregnancy was 4.7％(2/43)and ovarian hyperstimulation syndrome(OHSS)0 in IVM group,which were significantly lower than those in the other control group(P ＜0.01).Conclusion In vitro maturation is an effective treatment in infertile women with PCOS,it could obtain the similar pregnancy outcome and reduce total cost,the dosage of gonadotropinreleasing hormone and rate of OHSS compared with conventional IVF/ICSI.
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Objective To evaluate the effect of domestic wire-reinforced epidural catheter on the occurrence of adverse events during epidural block.Methods Three hundred ASA Ⅰ or Ⅱ patients of both sexes,aged 18-64 yr,weighing 41-78 kg,scheduled for elective operations under combined spinal-epidural anesthesia,were randomly divided into 3 groups (n =100 each):polyvinyl chloride epidural catheter group (group A),imported wire-reinforced epidural catheter group (group B) and domestic wire-reinforced epidural catheter group (group C).Combined spinal-epidural anesthesia was performed routinely.The corresponding epidural catheter was inserted in each group.The catheterization without difficulty,paresthesia during catheterization,the number of patients in whom blood or cerebrospinal fluid was withdrawn from the epidural catheter,intravascular catheter insertion,injection obstruction,easiness during removal of the catheter,bleeding after removal,postoperative paresthesia and epidural hematoma within 1 week after operation were recorded.Results Compared with A group,the incidences of paresthesia during catheterization,the number of patients in whom blood or cerebrospinal fluid was withdrawn from the epidural catheter,injection obstruction and postoperative paresthesia were significantly decreased (P ＜ 0.05),and no significant change was found in the other parameters in B and C groups (P ＞ 0.05).There was no significant difference in all the parameters between B group and C group (P ＞ 0.05).Conclusion Domestic wire-reinforced epidural catheter can decrease the occurrence of catheterization-induced damage to the nerve and blood vessels and the efficacy is comparable with that of imported wire-reinforced epidural catheter.
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Vinflunine tartrate-loaded liposomes (VT-L) with two drug-to-lipid ratios were prepared by pH gradient method. Vesicle size and zeta potential were determined by the Zetasizer Nano ZS. Entrapment efficiency was evaluated by cation exchange resin centrifugalization method. The toxicity and tumor inhibition to nude mouse administrated by VT-L with different drug-to-lipid ratios were investigated and compared with the vinflunine tartrate injection (VT-I). The results showed that the mean particle size, zeta potential and entrapment efficiency of the VT-L with drug-to-lipid ratios of 1 : 5 and 1 : 10 were 124.6 nm and 128.3 nm, -25.3 mV and -22.8 mV, 94.46% and 97.31%, respectively. The VT-L with two different drug-to-lipid ratios has significantly higher anti-tumor effect to nude mouse transplanted human non-small cell lung carcinoma A549 and lower toxicity than VT-I. While there were no significant differences in anti-tumor effect and toxicity between VT-L with two different drug-to-lipid ratios.