1.Clinical observation of multifocal intraocular lens with aspheric astigmatism in cataract surgery
Xiao-Feng, WANG ; Wei-Hua, YANG
International Eye Science 2017;17(8):1497-1500
AIM: By comparing the aspheric and multifocal Toric intraocular lens and the aspheric intraocular lens in cataract patients,to observe the patients` visual quality,to evaluate the patients` distance visual acuity,near visual acuity,Pseudo-accommodative power,residual astigmatism,the rotational stability of AcrySof IQ Toric Restor intraocular lens (IOLs),contrast the rate of off-distance glass,the rate of off-near glass and patient satisfaction after the implantation of AcrySof IQ Toric Restor IOL in the cataract patients with preexisting corneal astigmatism.METHODS:Carried out in 46 patients (48 eyes) with age-rated cataract who receiving phacoemulsification and implantation of artificial lens in our department during February 2014 to June 2016.All the cases were randomly divided into 2 groups: experimental group: 23 cases (24 eyes),AcrySof IQ ReSTOR Toric IOL was implanted after phacoemulsification;control group: 23 cases (24 eyes),AcrySof IQ was implanted.Uncorrected distance visual acuity (UCDVA) and best corrected distance visual acuity (BCDVA),uncorrected near visual acuity (UCNVA) and best-corrected near visual acuity(BCNVA),Pseudo-accommodative power,residual astigmatism,preoperative and postoperative corneal astigmatism,the rate of off-distance glass,the rate of off-near glass and patient satisfaction were measured at 6mo postoperatively follow-up.RESULTS: BCDVA and BCNVA were not statistically different between the two groups(P<0.05).At 1wk,1,3 and 6mo postoperatively of UCDVA the experimental group were statistically better than the control group (P<0.05).UCNVA were also statistically better than the control group (P<0.05).The mean residual astigmatisms 1wk,1,3 and 6mo postoperatively were statistically differences between the control group and experimental group (P<0.05).At 6mo postoperatively,patients satisfaction of experimental group were significantly better than control group (P<0.05).Spectacles independence for near vision achieved 83% and 17% in experimental group and control group,experimental group were statistically better than control group(P<0.05).Spectacles independence for distance vision achieved 92% and 67% in experimental group and control group,experimental group were statistically better than control group(P<0.05).CONCLUSION:The results indicate that AcrySof IQ ReSTOR Toric IOLs may provide a better uncorrected distance visual acuity and uncorrected near visual acuity,which can significantly reduce preexisting corneal astigmatism in cataract surgery,improve spectacles independence for distance vision and spectacles independence for near vision,have a high patient satisfaction.
2.Relationship between Plasma Level of Calcitonin Gene Related Peptide and Clinical Effect after Coronary Stent Implantation
Feng SUN ; Yueqing ZHANG ; Hua WEI
Journal of Medical Research 2006;0(02):-
Objective To assess the predictive value of plasma level of calcitonin gene related peptide for cardiovascular events and operational stent restenosis after coronary stent implantation in 6 months.Methods Plasma level of CGRP was measured in 53 cases of coronary stent implantation before and after the operation.The cardiovascular events and the stent restenosis were observed and recorded in 6 months after the procedure.Results The plasma level of CGRP was significantly lower in patients with cardiovascular events and stent restenosis(166.36?10.18,182.5?11.36,P
3.MR features of mice spleen lymphocytes labeled with super-paramagnetic iron oxide particles
Anning LI ; Zhenwei YAO ; Xiaoyuan FENG ; Ying MAO ; Wei HUA ; Feng TANG ; Wei LI ; Feifei LUO
Chinese Journal of Radiology 2012;46(3):260-263
Objective To investigate the feasibility of labeling mice spleen lymphocytes with superparamagnetic iron oxide(SPIO)and in vitro MR imaging of the labeled cells.Methods Spleen lymphocytes of 5 mice were isolated and then labeled with SPIO of 100,50,25,15,10,5 μg/ml,which was previously prepared with PLL.Prussian blue staining was performed to show the intracellular iron.Cell viability was compared among fresh,labeled and unlabeled cells.Different concentrations of mice spleen lymphocytes were screened using 3.0 T MR on T2WI,T2 * WI and SWI sequences in vitro.Cell viability was compared using independent-sample t test between groups.The MRI values among different groups were compared using one-way ANOVA.Results SPIO prepared with PLL could successfully label mice spleen lymphocytes,the optimum concentration of SPIO was 5 μg/ml.The Prussian blue staining showed intracellular blue spots and a labeling efficiency of(93.6 ± 2.1)%.Three groups of fresh,labeled and unlabeled cells showed a Trypan blue staining result of(94.8 ± 3.1)%,(88.7 ± 2.7)%,and(88.9 ±3.2)%,respectively; no statistically significant difference was found in cell viability between labeled and unlabeled lymphocytes(t =0.281,P > 0.05); however,the cell viability of fresh cells were statistically significant higher than the labeled and unlabeled lymphocytes(t =8.125 and 7.253 respectively,P <0.05for all).Among the T2 WI,T2 * WI and SWI sequences under the same concentrations of cells,the SWI sequence was the most sensitive.Conclusions The mice spleen lymphocytes can be effectively labeled with SPIO with no impact on cell viability,and MR can be used to track these labeled cells in vitro.The SWI sequence is the most sensitive.
4.Clinical significance of FoxP3 and the correlation of FoxP3 expression with epithelial-mesenchymal transition in breast cancer
Lili HUO ; Hui LI ; Feng WEI ; Hua ZHAO ; Xiubao REN
Chinese Journal of Clinical Oncology 2014;(3):158-161
Objective: This study aims to investigate the correlation between the expression of FoxP3, TGF-β1, and epitheli-al-mesenchymal transition (EMT) in breast cancer and to determine the clinical significance of FoxP3. Methods: The expression of FoxP3, TGF-β1, E-Cadherin, N-Cadherin, Vimentin, and Fibronectin protein were detected in the cancer cells of 74 cases with breast carcinoma via immunohistochemistry. The correlation of FoxP3 protein with clinico-pathologic features of breast carcinoma and the re-lationships among the expressions of FoxP3, TGF-β1, and epithelial-mesenchymal transition (EMT) were analyzed. Results:The ex-pression rates of FoxP3, TGF-β1, and EMT are 36.5%(27/74), 39.2%(29/74), and 40.5%(30/74), respectively. The FoxP3 protein ex-pression in breast cancer is correlated with lymph node metastasis (P<0.05) but not with other clinico-pathological features (P>0.05). The expression of FoxP3 is also correlated with the expression of TGF-β1. Furthermore, TGF-β1 can induce EMT (P<0.05). Conclu-sion:The expression of FoxP3 is correlated with lymph node metastasis and EMT in breast cancer. Therefore, FoxP3 may be a marker for predicting metastasis.
5.Doppler ultrasound screening for deep vein thrombosis in patients with lower limb fracture
Youqing YAN ; Hua REN ; Kun FENG ; Chaohui DU ; Zhiyu WEI
Chinese Journal of General Practitioners 2011;10(9):673-674
One hundred and sixteen patients with lower limb fracture were screened by Doppler ultrasound for deep vein thrombosis(DVT) of bilateral lower extremities within the first 72 h, d7 and d21 after fracture. Results showed that DVT was detected in 31 (26. 7% ) out of 116 cases within 72 h; at d7 and d21 DVT was detected in 3 and 1 patient respectively with a cumulated DVT rate of 30. 2% in 3 weeks.Serial Doppler ultrasonography is of value in screening for DVT of the lower extremities in patients with lower limb fracture at early stage.
6.Determination of 2-Chloroacetamide in Cosmetic Products by Gas Chromatography boram
Shang-Jia XIAO ; Hua-Feng FAN ; Wei HUANG ; Al ET ;
Journal of Environment and Health 1992;0(04):-
Objective To establish a method for determination of 2-chloroacetamide in cosmetics. Methods The gas chromatography method had been developed for determination of 2-chloroacetamide in cosmetics. Samples were solved with ethanol treated with ultrasonic homogenization centrifuge separated by HP-INNWax column determined by FID. Results The 2-chloroacetamide concentration had a better linear range in the range of 0.0-10.0 mg/ml. The minimum detection limit was below 0.01 ?g. The relative standard deviation was less than 5.6% and the recovery rates were 90%-100% respectively. Conclusion This method is simple fast and sensitive.
7.Investigation on current status of Toxoplasma gondii infection among preg-nant women and exploration of risk factors in some areas of Lhasa City,Ti-bet
Desheng TONG ; Haiyong HUA ; Wei CHEN ; Feng TANG ; Yixin LIU
Chinese Journal of Schistosomiasis Control 2016;28(6):708-710
Objective To understand the current status of Toxoplasma gondii(TOX)infection among pregnant women and to explore the risk factors in some areas of Lhasa City,Tibet. Methods From 2015 to 2016,3 districts(counties)of Lhasa City were chosen as the investigation sites,and 200 pregnant women in each district(county)were selected as the investigation objectives. Meanwhile,450 pregnant women from Xuzhou,Yangzhou,Wuxi cities in Jiangsu Province were chosen as the con?trol. Then the blood samples of the pregnant women both in Lhasa and Jiangsu were detected by ELISA for TOX antibodies IgG , IgM,and the detection results were analyzed and compared. In addition,the individual information of the pregnant women in Lhasa City was surveyed by questionnaires,and the related risk factors of TOX infection were analyzed. Results Among 600 pregnant women investigated in Lhasa City,there were 99 pregnant women with positive TOX antibodies,and the positive rate was 16.50%,which was significantly higher than that(5.11%)of the pregnant women in Jiangsu Province(P<0.05). There was no statistically significant difference among the 3 districts(counties)of Lhasa City in the positive rates of pregnant women (P>0.05). The positive rates of the women who preferred raw meat or had the intimate contact with animal were high. Conclu?sions Compared with Jiangsu Province,the infection rate of TOX among pregnant women in Lhasa City is high. Therefore,the comprehensive measures including health education,early examination and treatment should be taken actively,so as to prevent and control TOX infection in this area.
8.HPLC-DAD/ESI-MS in analyzing chemical constituents of Rhizoma belamcanda
Chao FENG ; Tingting ZHOU ; Guorong FAN ; Hua WEI
Academic Journal of Second Military Medical University 2000;0(07):-
Objective:To analyze the chemical constituents of Rhizoma belamcandae by using high-performance liquid chromatography-diode array detector/electrospray ionization-mass spectrometry (HPLC-DAD/ESI-MS).Methods: Dried Belamcanda chinensis powder was extracted with 70% ethanol by sonication.The chromatographic separation was performed on a YMC ODS-C18 column (250 mm?4.6 mm I.D.,5 ?m) with a mobile phase composed of 20%CH3OH(A)-70%ACN(B) (0→30→45→65 min,20→30→90→100 B),eluted at a flow rate of 0.45 ml/min,and the UV detection wavelength was set at 265 nm.Positive ionization mode with a needle voltage of 5 000 V,a capillary voltage of 20 V,a gas(N2)press of 20 psi and a temperature of the drying gas of 300℃ was selected.Relative molecular mass data acquisition was performed from m/z 250 to 550 in full MS scan mode.Results: Nine major isoflavones were identified from Rhizoma belamcandae based on their retention behavior obtained on-line by their UV spectra and the HPLC-DAD/ESI-MS.Conclusion: A rapid and efficient HPLC-DAD/ESI-MS method for identifying the chemical constituents of Belamcandae chinensis has been established,which provides more scientific information for quality control of Rhizoma belamcandae.
9.Confer Effect of Air Disinfection by Using Nanometer Light Catalysis Decontamination Machine in Operating Room
Feng SONG ; Xin DONG ; Caixia YIN ; Hua WEI ; Yubin XING
Chinese Journal of Nosocomiology 2006;0(06):-
OBJECTIVE To analysis the effect of air disinfection by using nanometer light catalysis decontamination machine in operating room. METHODS By compare the effectiveness of air disinfection both by using nanometer light catalysis decontamination machine and ultraviolet rays light. RESULTS The result of tests is 0 CFU/m~2 by nanometer light catalysis decontamination machine and 33.3 CFU/m~2 by ultraviolet rays light in unmanned environment;By different groups: F=220.423,P=0.000,P
10.The expression of Tregs and CD8+T cells in malignant melanoma and its relationship with prognosis
Yueying SU ; Xiumei AN ; Hua ZHAO ; Feng WEI ; Xinwei ZHANG
Tianjin Medical Journal 2015;(9):1026-1029,1030
Objective To investigate the different distribution of regulatory T cells (Tregs) and CD8+T cells in the local immune microenvironment of mucosal malignant melanoma and cutaneous malignant melanoma, and analyze the relationship between the two indicators and the prognosis of patients. Methods Immunohistochemistry staining was used to assess the ex?pression of Foxp3+Tregs and CD8+T cells in tumor microenvironment of 58 patients with malignant melanoma. The correlation between two factors, clinicopathological characteristics, and prognosis were analyzed. Results There is no correlation be?tween the expression of Foxp3 and CD8. The number of Foxp3+Tregs was significantly higher in mucosa malignant melanoma than that in cutaneous malignant melanoma (t=2.648, P=0.011). The proportion of Foxp3highTregs was significantly higher in pa?tients with tumor diameter≥3 cm, lymph node metastasis and distant metastasis than that in patients with tumor diameter<3 cm, no lymph node metastasis and no distant metastasis (P<0.05). In addition, in patients with ulceration that proportion was significantly higher in CD8high group than that in patients without ulceration (33.3%vs 5.9%, P<0.05). The median progres?sion-free surial (PFS) was 12 months in Foxp3high group, which was significantly longer than that of Foxp3low group (31 months, P<0.05). The median PFS was significantly higher in CD8high group (25 months) than that of CD8low group (12 months, P<0.05). Subgroup analysis showed that the median PFS was 7 months in Foxp3high CD8low group, which was significantly lower than that of Foxp3highCD8high group (25 months) and Foxp3lowCD8low group (18 months, P=0.003). Univariate analysis showed that median PFS was different in patients with different tumor location, different number of Foxp3+Treg, different number of CD8+T cells, and distant metastases. Conclusion The number of Tregs is closely associated with metastasis in patients with malig?nant melanoma. Compared with cutaneous malignant melanoma, our results indicate that the poor prognosis of mucosal malig?nant melanoma may be associated with the infiltration of more Tregs.