1.Strengthen the research of urinary and male genital system neoplasm in China
Cancer Research and Clinic 2012;24(10):649-652
Along with several decades development,the urinary and male genital system neoplasm has gained distinguished research achievements in China.The research output is being historically high.However,our ability of treatment and diagnosis cannot meet people's requirement of health due to the serious prevalent situation.It is necessary for China to take actions to keep up with the advanced world level.
2.Comparison of laboratory detection between infectious mononucleosis and mucocutaneous lymphnode syndrome
ling-ling, WANG ; tian-you, WANG ; rong-yan, HUANG
Journal of Applied Clinical Pediatrics 2004;0(07):-
Objective To analyze the laboratory detection findings in infectious mononucleosis(IM) and mucocutaneous lymphnode syndrome(MCLS)and find the main points of the differential diagnosis and direct the treatment. Methods Five hundreds and twenty-five children were in-patient department over these past 10 years .These patients were divided into 2 groups,IM group (225 patients) and MCLS group(280 patients). EB-virus antibody,Paul-Bunnell test,the circumference blood numeration ,classification of leucocytes,the numeration of atypical lymphocytes were detected and compared,as well as blood platelet of these patients.Results The positive rate of EB-virus antibody in IM and MCLS were high, and had no discrepancy. However, the positive rate of Paul-Bunnell test and numeration of atypical lymphocyte in IM group were significantly higher than those in MCLS group. The total circumference blood leucocyte numeration of the groups increased,but the numeration neutrophil increased significantly in MCLS group, the rising numeration of lymphocyte in IM; the blood platelet numeration was elevated significantly in MCLS group and continued when the total circumference blood leucocyte numeration tended normally.Conclusions The causes of IM and MCLS are related to the infection of EB-virus. The laboratory characteristics of IM and MCLS are different,understanding the main points of the differential diagnosis contributes to the clear diagnose and early treatment.
3.Line bisection test in patients with hemispatial neglect
Ling WEI ; Yanghua TIAN ; Kai WANG
International Journal of Cerebrovascular Diseases 2009;17(10):778-782
Hemispatial neglect often occurs after brain injury, especially the higher incidence after stroke. The studies on cognition, attention, and perception have greater significance. However, the related domestic studies at present are rare. Being themed by line bisection, this article reviews the influencing factors and relevant mechanisms, brain location, and extensional study in the assessment of hemispatial neglect.
4.The influence of free position delivery on maternal labor pain, labor control, maternal and infant outcomes and pelvic floor muscle function
Shenghan YANG ; Qian WANG ; Ling TIAN
Chinese Journal of Postgraduates of Medicine 2021;44(2):168-174
Objective:To investigate the influence of free position delivery on maternal labor pain, labor control, maternal and infant outcomes and pelvic floor muscle function.Methods:Forty-eight pregnant women who took delivery in free position in the Third People′s Hospital of Bengbu from April to December 2018 were selected as the study group, and 48 pregnant women who took sitting position delivery at the same period were selected as the control group at a 1∶1 ratio. The pregnancy outcomes of the two groups were compared. The duration of labor time and the amount of bleeding were observed. Simplified McGill Pain Questionnaire (SF-MPQ) and labor agentry cale (LAS) were used to evaluate the pain and the labor control of mothers 2 h after delivery. The neonatal asphyxia was evaluated by neonatal Apgar score. The Hamilton anxiety scale (HAMA) and the Hamilton depression scale (HAMD) were used to evaluate the anxiety and depression status of mothers in the two groups 6 weeks after the delivery. The pelvic floor muscle function of the pregnant women in the two groups was compared 6 weeks after the delivery.Results:The rate of maternal transfer to cesarean section in the study group was lower than that in the control group [4.17%(2/48) vs. 16.67%(8/48)] , and the difference was statistically significant ( χ2 = 4.019, P = 0.045). The time of the first and the second stage of labor, the total duration of labor, and the amount of bleeding in the study group were lower than those in the control group [(472.69 ± 55.24) min vs. (515.25 ± 67.26) min, (43.26 ± 5.23) min vs. (52.34 ± 5.56) min, (535.24 ± 38.22) min vs. (582.68 ± 40.16) min, (179.12 ± 25.65) ml vs. (195.34 ± 24.31) ml], and the differences were statistically significant ( P<0.05). There was no statistically significant difference in the time of the third stage of labor between the two groups ( P>0.05). After the delivery, the scores of verbal response scale (VRS), visual analogue scale (VAS), present pain intensity scale (PPI) and HAMA, HAMD in the study group were lower than those of the control group [(6.24 ± 1.21) scores vs. (7.68 ± 1.32) scores, (21.25 ± 2.98) scores vs.(27.95 ± 3.75) scores, (2.78 ± 0.29) scores vs. (3.49 ± 0.85) scores, (6.35 ± 0.18) scores vs. (7.54 ± 0.16) scores, (4.38 ± 0.12)scores vs.(5.54 ± 0.25) scores], the score LAS in the study group was higher than that of the control group [(175.18 ± 15.64) scores vs. (122.65 ± 14.85) scores], and the differences were statistically significant ( P<0.05). The Apgar scores of neonates in the study group was higher than that of the control group at 1 min and 5 min after the delivery, but there was no statistically significant difference ( P>0.05). There was no statistically significant difference in abnormal pelvic floor muscle strength, muscle strength fatigue and abnormal vaginal pressure between the two groups ( P>0.05). The incidence of adverse outcomes in the study group was lower than that in the control group [13.04%(6/46) vs. 35.00%(14/40)] ( P<0.05). Conclusions:Free posture delivery can reduce the rate of transfer to cesarean section, shorten the delivery process, and reduce the amount of bleeding. It also can alleviate the anxiety, pain of mothers, increase the labor control, and reduce the incidence of adverse labor outcomes, but its impact on maternal pelvic floor muscle function needs to be further explored.
5.Research on speckle reduction in ophthalmology high frequency ultrasound imaging
Ling TIAN ; Sheng ZHOU ; Xiaochun WANG ; Qingsheng YE ; Yanqun WANG
International Journal of Biomedical Engineering 2016;39(1):6-9,15
Objective Speckle is the inherent problem exists in B-Mode ultrasound image,and effective speckle noise reduction will improve the image quality and contribute greatly to clinical doctors to diagnose,especially in fine ophthalmic examination with high frequency ultrasound.Methods This paper proposed a new speckle reduction method based on the Laplacian pyramid and multiscale analysis.In the Laplacian pyramid,true clinical features were separated from noise,according to the different bandpass ultrasound image characteristics in each layer,and the advanced eight directions speckle reduction anisotropic diffusion (SRAD)was adapted to suppressed the speckle noise,and the identified noise and the extracted features were selectively emphasized by suitable edge,coherence and contrast enhancement filtering from fine to coarse scales.The performance of the proposed method was compared to the traditional SRAD method and coherence-enhancing diffusion method by measuring the equivalent number of looks (ENL) and Time cost.Results The ENL and Time cost value of the proposed method were higher compared to the SRAD and the cedif method,i.e 1.172 3 vs 1.122 3,0.929 3 and 0.864 0 vs 1.396 0,1.468 3.Conclusions In summary,the proposed method can more effectively remove the speckle noise while preserving the edge and details of the images.
6.A research on bond strength and interface of dentin adhesives
Ling YU ; Xiaoyan WANG ; Fucong TIAN ; Xuejun GAO
Journal of Practical Stomatology 2009;25(4):467-470
Objective: To evaluate bond strength and interface of various dentin adhesives by a modified interface processing method. Methods:Nine extracted human molars were ground to expose fresh dentin surface. Three dentin adhesives (Single Bond, Clearfil SE Bond and Clearfil S3 Bond) were applied respectively and a block of composite resin was built up. The specimens were then stored in distilled water for 24 h at 37 ℃ and sectioned into beams of 0.9 mm×0.9 mm cross-sectional area. The microtensile bond strength was determined with Microtensile Tester(n=15). In addition, the bonding specimens were conditioned with 6 mol/L HCl, 5% NaOCl and 0.08 mg/ml hyaluronidase to observe the adhesive interfaces by SEM. Results: Significant differences in bond strength were observed among the three adhesives(P<0.05): SE Bond (45.06±5.29) MPa> Single Bond (35.50±6.40) MPa> S3 Bond (30.46±3.82) MPa. Single Bond showed resin tags about 9-12 μm long and gaps between hybrid and adhesive layers. No obvious boundary between hybrid layer and adhesive were observed for both SE Bond and S3 Bond, while the length of resin tags were 9-14 μm and 4-7 μm for SE Bond and S3 Bond respectively. Conclusion:The morphology of the bond interface of dentin adhesive has a relationship with the bond strength.
10.Effects of STAT3 aberrant activation on malignant transformation of human umbilical cord mesenchymal stem cells when exposed to human breast cancer microenvironment
Ling WANG ; Jing ZHU ; Jie TIAN ; Bin TAN ; Sha YAN
Basic & Clinical Medicine 2015;(10):1314-1319
Objective_To investigate whether hUCMSCs undergo malignant transformation when exposed to MCF-7B breast cancer microenvironment and whether the abnormal activation and over expression of STAT3 play an impor-tant role in this transformation.Methods_The experiment was divided into three groups:blank group ( hUCMSCs were separately cultured),experimental group(hUCMSCs were indirectly co-cultured with MCF-7B breast cancer cells),positive control group(MCF-7B breast cancer cells were separately cultured).Morphology of cells was detec-ted by invertedmicroscope.Cell cycle was detected by flow cytometry.The mRNA expression of STAT3, c-Myc and Bcl-xL was tested by real-time PCR.The protein expression and location of p-STAT3,c-Myc and Bcl-xL were detected by immunofluorescence.The protein expressions of p-STAT3,STAT3,c-Myc and Bcl-xL were also meas-ured by Western blot.Results_The experimental group cells showed typical morphology of the tumor cells.The cells proportion of experiment group in G1 phase was significantly lower than that of the blank group(P<0.05),but which in S and G2 phase were significantly higher than those of the blank group(P<0.05).The mRNA expression levels of STAT3 ,c-Myc and Bcl-xL in experimental group was significantly higher than those in blank group ( P<0.05).p-STAT3,STAT3,c-Myc and Bcl-xL protein were significantly higher than those of the blank group(P<0.05),and they were mainly located in the nuclei.The protein expression of STATS also showed significant changes in experimental group.Conclusions_hUCMSCs trends to malignant transformations when exposed to MCF-7B breast cancer microenvironment.The abnormal activation and over expression of STAT3 are of important factors leading to the malignant transformation of hUCMSCs.