2.Model of diabetic keratopathy with high-fat and high-glucose feeding mice
Wen, BO ; Guang-Hua, SUN ; Feng-Xia, SUN ; Wen, CUI
International Eye Science 2015;(4):596-600
AIM: To discuss the establishment of immediate diabetic keratopathy animal model of C57BL/6 mouse induced by ahigh-fat and high-glucose diet.
METHODS: Diabetes mellitus was induced by a high-fat and high-glucose diet in C57BL/6 mouse. 1% rose bengal was stained on the cornea to examine the integrality of the corneal epithelium at 2 ~ 12mo after completion of the model. Corneal epithelial wound healing was observed using a vivo epithelial debridement model which was dyed by sodium fluorescein. Corneal morphology histology was examined by pathological methods.
RESULTS: The high-fat and high-glucose diet C57BL/6 mouse in 2mo had showed general symptoms of diabetes: polydipsia, polyphagia, polyuria, weight loss etc. The model had a steady-state high glucose (≥18mmol/L), also the weight was lower compared with normal control mouse. 1% rose bengal corneal staining had dot coloring at 2mo after completion of the model, the stained area and extent were gradually increased with the extension of the duration of diabetes, almost all the cornea was stained at 12mo after completion of the
model. With the passage of time into a mold, the cornea epithelial healing time become longer: 2mo was about 40h;3mo was about 120h; 4, 6, 12mo was about 144h;the coloboma were gradually increased at 12mo after completion of the model, then the area was reduced gradually until complete healing, the time was 96~120h, showed repeating phenomenon.
CONCLUSION: The mouse were induced by high-fat and high-glucose diet can be used as animal models of diabetic keratopathy: the damage of epithelium for corneal and delay healing on epithelium and other symptoms.
3.Cancer-related proteins discovery of uveal melanoma with comparative proteomic analysis
Mei-Xia KANG ; Wen-Bin WEI ; Xue-Hui SHI ; Lei CUI ;
Ophthalmology in China 1993;0(04):-
Objective To identify and characterize uveal melanoma associated protein variants with two-dimensional electrophore- sis and mass spectrometry.Design Experiment study.Participants 4 cases of specimens of uveal melanoma and 4 cases of normal con- tributed uveal tissue.Methods Proteins from uveal melanoma and normal urea were separated with two-dimensional eleetrophoresis (2-DE)and visualized with Coomassie G-250.Gels were analyzed by Image Master 5.0 software.The mass spectra were measured by matrix-assisted laser desorption/ionizatian time-of-flight mass spectrometry(MALDI-TOF MS)and searched against NCBI database using Mascot software.Main Outcome Measures Differential proteins.Results A set of 30 proteins were differentially expressed in uveal melanoma compared to nomal urea.Twenty-four types of protein only expressed in uveal melanoma.Five types of protein were up-regu- lated and 1 type of one down-regulated.These proteins can be subdivided into groups according to cellular function,such as enzyme, signal transduction,signal regulation,cytoskehton,immune,etc.Conclusions There is significant difference in protein profilings be- tween uveal melanoma and normal uvea.The differentially expressed proteins may be associated with the development of uveal melanoma.
4.The potential effects of linalool on enantioselective skin permeation of norgestrel.
Yi RONG ; Wen-Ying YU ; Xia GUO ; Shan-Shan ZENG ; Zheng-Rong SHEN ; Su ZENG ; Jin-Cui YE
Acta Pharmaceutica Sinica 2014;49(8):1175-1180
The purpose of this study is to investigate the enantioselectivity of norgestrel (NG) transdermal permeation and the potential influence of linalool and lipids on the enantioselectivity. In vitro skin permeation studies of NG across the excised rat skins were performed with Valia-Chien diffusion cells, and the permeation samples were analyzed by enantioselective HPLC. The possible enantioselective permeation of NG across intact rat back skin and lipids extracted rat back skin and the influence of linalool were evaluated. The skin permeation rate of dl-NG was two times higher than that of l-NG when donor solutions (EtOH/H2O 2 : 8, v/v) containing l-NG or dl-NG. It may be mainly attributed to the solubility discrepancy between enantiomer and racemate. The enantioselective permeation of dl-NG across intact rat skin was observed when the donor solutions containing dl-linalool. The permeation flux of l-NG was 22% higher than that of d-NG. But interestingly, the enantioselective permeation of dl-NG disappeared under the same experimental condition except that the lipid extracted rat skin was used. Attenuated total reflection-fourier transform infrared spectroscopy analysis of stratum corneum showed that the wave number for asymmetric CH2 stretching vibrations of lipids treated with dl-linalool was greater than that of the control. The results indicated that the enantioselective permeation of NG may be contributed by the interaction between dl-linalool and lipids. More than half of lipids were composed of ceramides. The stereospecific interaction maybe existed among chiral enhancer (linalool), lipids (ceramides) and/or chiral drugs (NG).
Administration, Cutaneous
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Animals
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Lipids
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pharmacology
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Monoterpenes
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pharmacology
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Norgestrel
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pharmacokinetics
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Rats
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Skin Absorption
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drug effects
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Spectroscopy, Fourier Transform Infrared
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Stereoisomerism
5.Effect of Parasep? feces centrifuge tube method on detecting schistosome eggs
Nian MA ; Huaming ZHANG ; Xiong LIU ; Chuanyun XIAO ; Xiaohong WEN ; Xia LI ; Lichun DONG ; Caixia CUI ; Zuwu TU
Chinese Journal of Schistosomiasis Control 2014;(4):431-433
Objective To evaluate the effect of the Parasep? feces centrifuge tube method on detecting schistosome eggs. Methods A total of 803 residents aged from 6-65 years were selected in 2 schistosomiasis endemic villages Jiangling Coun-ty Hubei Province and their stool samples were collected and detected parallelly by the Kato-Katz technique nylon silk egg hatching method and Parasep? feces centrifuge tube method at the same time. Results Among the 803 people 15 cases were found of schistosome egg positive and the positive rate was 1.87%. The positive rates of the Kato-Katz technique nylon silk egg hatching method and Parasep? feces centrifuge tube method were 0.75% 1.49% and 1.12% respectively. The schistosome eggs got with the Parasep? feces centrifuge tube method were clear and easy to identify. Conclusion In low endemic areas of schistosomiasis the Parasep? feces centrifuge tube method can be used as schistosomiasis japonica etiology diagnosis method.
6.Study on the Optimization of Enrichment Medium of Lactobacillus casei Zhang
Peng-Fei GAO ; Yan LI ; Wen-Jing ZHAO ; Xia CHEN ; Jing-Li CUI ; Lei ZHANG ; He-Ping ZHANG ;
Microbiology 1992;0(04):-
The effects of different carbon source,nitrogen source,proportion of carbon and nitrogen source, microelement and buffer salts on the growth of Lactobacillus casei Zhang isolated from Koumiss were studied.The enrichment medium for Lactobacillus casei Zhang was optimized by response surface methodology and its composition was glucose 20.9 g/L,soy peptone 10.45 g/L,yeast extract 10.45 g/L,K2HPO4 3.5 g/L, sodium acetate 14.6 g/L,sodium citrate 2.35 g/L,MgSO4?7H2O 1.0 g/L,MnSO4?5H2O 54 mg/L, CuSO4?5H2O 10 mg/L,tween 80 1.0 g/L.After cultivated in enrichment medium for 18h at 37℃,the living cells of Lactobacillus casei Zhang were 4.78?109 CFU/mL,which was about 10 times higher than in MRS (4.8?10 8 CFU/mL).
7.Advance in Biomechanical Analysis of Sit-to-stand Movement in Hemiplegic Stroke Patients(review)
Xue-Jiao WU ; Jie-Jiao ZHENG ; Wen XIA ; Cui-Xian LIU ; Bing QU
Chinese Journal of Rehabilitation Theory and Practice 2018;24(3):290-295
Hemiplegics after stroke are often disabled in sit-to-stand(STS).This article discussed the biomechanics of STS in the hemiplegic stroke patients,in terms of kinematics,kinetics and surface electromyography,and the rehabilitation for the stroke patients with STS dysfunction.It was found that the stability,duration,symmetry of support and degree and se-quence of muscular activation were different when the patients finished the STS task in three foot positions of natural, symmetrical and unaffected foot behind.The early STS rehabilitation training or other rehabilitation may improve the function of the hemiplegic lower extremity to prevent falls and apraxia.
8.Construction and operation of network laboratory for schistosomiasis diag-nosis in Jianglin County
Caixia CUI ; Xiong LIU ; Xia ZHANG ; Hehua HU ; Huaming ZHANG ; Ping ZOU ; Xiaohong WEN ; Nian MA ; Chunli CAO ; Zhiqiang QIN
Chinese Journal of Schistosomiasis Control 2014;(5):554-556
Objective To build a high quality diagnosis system for schistosomiasis surveillance in the situation of low infec-tion in Jianglin County. Methods The network laboratory for schistosomiasis diagnosis was built according to the national crite-ria in Jianglin County in 2012. Results The network laboratory for schistosomiasis diagnosis was established successfully and the operation was quiet well. Conclusion The establishment and operation of the laboratory play an important role in the real-ization of schistosomiasis elimination.
9.A randomized controlled trial of improvement of endoscopic visibility in the upper gastrointestinal tract with N-acetylcysteine
Zhibo CAO ; Zhiguo ZHAO ; Jing CUI ; Chao LIU ; Xia LIU ; Gui LI ; Yanling HUANG ; Xiaoping YI ; Jing WEN
Chinese Journal of Digestive Endoscopy 2016;33(4):237-241
Objective To determine the effects and dosage of N?acetylcysteine( NAC) in the im?provement of the visibility in esophagogastroduodenoscopy( EGD) . Methods A prospective randomized con?trolled study was performed on 193 patients scheduled for EGD from November 2014 to July 2015 were ran?domized into five groups using digital table. In group A, 100 mg dimethicone and 2 g NaHCO3 were given. In group B,100 mg dimethicone, 2 g NaHCO3 and 20 000 U pronase were given. Group C received 100 mg dimethicone, 2 g NaHCO3 and 200 mg NAC. Group D received 100 mg dimethicone, 2 g NaHCO3 and 400 mg NAC and group E 100 mg dimethicone, 2 g NaHCO3 and 600 mg NAC.The agents were dissolved in 100 ml water for each patient.Endoscopy was completed by one endoscopist and the score of image visibility assessment was completed by 2 other endoscopists. The 3 endoscopists were unaware of grouping. The total scores, the time of washing, the time of examination and complications were compared and analysed. The total image scores of group A, B, C,D and E were 30?83±3?78, 35?69±2?88, 33?16±3?90, 34?95±3?46 and 36?76±2?91, respectively. Group A was the lowest(P<0?05),followed by group C(P<0?05). There were no differences among group B,D, and E(P>0?05).Images that were scored 3 were the most in group E.The washing times of each group were 38?00±19?10, 17?03±11?44, 15?92±10?81, 15?78 ±10?24 and 15?55±9?69, and the examination times of each group were 13?49±2?49, 9?41±1?86, 9?08± 1?80, 8?73±1?91 and 8?78±1?79 minutes.Group A was the longest in these two indices(P<0?05). There were no significant differences among group B, C, D and E ( P<0?05) . There were no significant differences in adverse effects among groups after EGD( P>0?05) . Conclusion The preoperative NAC can improve the visibility in EGD. The best dose is 600 mg, whose effects and safety were similar to those of 20 000 U, but yield to less washing time and the examination time in EGD.
10.Clinical evaluation of Ahmed glaucoma valve implantation for uncontrolled primary congenital glaucoma
Wen-Sheng, LU ; Xiao-Bing, WANG ; Dong, HAN ; Cui-Xia, HAO ; Ning-Zhou, GAO ; Shao-Hui, YANG ; Jian-Hua, LV
International Eye Science 2015;(5):890-891
?AlM: To investigate the outcome and safety of Ahmed glaucoma valve implantation treatment in uncontrolled primary congenital glaucoma ( PCG) .
? METHODS: Twenty - two eyes in 22 children with uncontrolled PCG were reviewed retrospectively and underwent Ahmed glaucoma valve implantation treatment from January 2011 to December 2014. Main checking index included intraocular pressure ( lOP ) before and after operation, corneal diameter and complications.
?RESULTS: Preoperative mean age was 3. 74±2. 24y, and 2. 59 ± 1. 78y apart from the last operation. Postoperative average lOP was 35. 22 ± 6. 36mmHg. Average corneal diameter was 12. 79 ± 0. 75mm. Mitomycin C ( 0. 3 - 0. 5mg/mL ) was used in all operations for 3-5min. Glaucoma valves were implanted in the temporal or nose above the equator sclera. Postoperative lOP was 11. 4±4. 45mmHg at 1wk, and 16. 73± 7. 23mmHg after 12mo. As lOP< 21mmHg for success criteria, lOP of 16 eyes ( 73%) were controlled after 12mo. Preoperative 6 cases had shallow anterior chamber, recovered spontaneously. No serious complication was recorded, such as rejection of glaucoma valve, endoophthalmitis and corneal decompensation.
?CONCLUSlON:Ahmed glaucoma valve implantation in uncontrolled PCG is a safe and viable treatment.