1.Efficacy of iris location to femtosecond-combined wavefront guided LASlK for myopia and astigmatism
Ke-Jie, LIN ; Jun, CHEN ; Wen, LIN ; Xiao-Dong, LIN ; Yue-Ming, ZHOU ; Liang-Ding, ZHENG
International Eye Science 2016;16(6):1056-1059
AIM: To observe effect of the iris location to femtosecond - combined wavefront guided LASIK for myopia and astigmatism.?METHODS:The patients with astigmatism >1. 0D during the same time and followed up for 1a were selected. A total of 129 eyes in 67 patients were treated under iris location with femtosecond-combined wavefront guided LASIK ( experimental group) and 161 eyes in 82 cases with femtosecond-combined wavefront guided LASIK ( control group) . Laser cutting went with the same laser machine. The uncorrected visual acuity ( UCVA ) , best corrected visual acuity ( BCVA) , and wavefront aberration between the two groups were compared at 1, 3, 6mo and 1a after surgery.?RESULTS:At 1 and 3mo after surgery, the number of patients with better postoperative UCVA than preoperative BCVA between the two group showed a statistically significant difference (χ2=6. 423, P=0. 011,χ2=14. 431, P=0. 01 ); at 1d and 1mo after surgery, the residual astigmatism showed a statistically significant difference between two groups (t=1. 98, P<0. 05; t=2. 23, P<0. 05). At 3, 6mo and 1a after surgery, the differences on the change of residual astigmatism between the two groups weren’t significant ( P > 0. 05 ). At 6mo and 1a after surgery, the differences on UCVA between the two groups weren’t significant ( P > 0. 05 ). Until 1a after surgery, the root mean square ( RMS ) of high order wavefront aberration of the two groups, spherical aberration and coma aberration ( COMA ) were all enhanced compared to before surgery(P<0. 05). At 1, 3mo after surgery, the RMS showed a statistically significant difference between two groups (P<0. 05). At 1, 3, 6mo, 1a after surgery, the increase of COMA in experimental group was significantly lower than that in control group (P<0. 05).? CONCLUSION: Iris location technology applied in femtosecond - combined wavefront guided LASIK for myopia and astigmatism, can make the vision recovery faster, the RMS of high order and COMA increase less, the residual astigmatism less, show better and more stable treatment effect.
2.Analysis on postoperative variation of corneal posterior surface heights after femtosecond LASIK and small incision lenticule extraction of high myopia
Yue-Ming, ZHOU ; Jun, CHEN ; Wen, LIN ; Xiao-Dong, LIN ; Ke-Jie, LIN ; Liang-Ding, ZHENG
International Eye Science 2016;16(10):1978-1980
AIM:To contrast analysis of postoperative variation of corneal posterior surface heights after Femtosecond LASlK ( FS - LASlK ) and small incision lenticule extraction ( SMlLE) for high myopia.
●METHODS: Sixty-seven cases of high myopic patients (132 eyes) operated with laser corneal refractive in our hospital from May to Dec. in 2015 (-6. 00D≤spherical equivalent degree≤-10. 00D) were selected and divided into FS-LASlK group and SMlLE group. The thickness of corneal flaps at FS-LASlK and the thickness of map at SMlLE were designed to be 110μm. Corneal posterior surface heights were examined by Pentacam at preoperation, postoperative 3 and 6mo after FS-LASlK and SMlLE operation. Surface height changes after preoperative, postoperative 3 and 6mo were compared by measuring Pentacam corneal analysis system.
●RESULTS: Six months after operation, the FS-LASlK posterior corneal surface height was 6. 47 ± 1. 65mm, significantly higher than 5. 20 ± 1. 32mm before operation. SMlLE posterior corneal surface height was 6. 40 ± 1. 33mm, significantly higher than 5. 18 ± 1. 25mm before operation, the differences were statistically significant( P<0. 05). Six month after surgery, two methods of corneal surface height variation obtained was 1. 29 ± 1. 28mm and 1. 22 ± 0. 89mm, there was no significant difference ( P>0. 05).
●CONCLUSION:After FS-LASlK and SMlLE, the corneal posterior surface is protrusive. FS - LASlK is slightly obvious than SMlLE in early period. The stability of the posterior surface is better after SMlLE.
3.The retrospective analysis of acute drug poisoning 744 cases in emergency center affiliated to general hospital
Feng CHEN ; Junping WEN ; Xiaoping WANG ; Jun KE ; Qingming LIN ; Caijing LIN
Chinese Journal of Emergency Medicine 2011;20(12):1345-1348
Objective To study the characteristics of epidemiology among the emergency patients with acute drugs poisoning in emergency center of Fujian Province.Methods Retrospective study was used to collect data of patients with acute drugs poisoning from 2004 to 2009,and data of patients 'gender,age,cause of poisoning,poison type,emergency diagnosis,medical treatment,etc.were analyzed.Results The epidemiological reports of 744 cases of acute drugs poisoning patients were collcected from 2004 to 2009,the male-to-female ratio was 1:4.2,the average age was 33.0,high incidence group was at ages 18 ~29 (50.3% ).The most visiting time was in Spring (April to June).Eighty-eight point three percentage of poisoning was intentional.Central nervous system drugs,in particular sedative/hypnotic drugs (64.5% )was the most common agents associated with poisoning.The poisoned patients were divided into three groups with mild ( 51.5% ),moderate ( 33.2% ) and severe ( 15.3% ) according to the patient' s condition.Thirty-seven percentage poisoned patients were discharged after treatment followed up for observation,and 28.3% patients were hospitalized,no patients died.Conclusions The majority of acute drugs poisoning among patients from city were sedative/hypnotic drugs.Reasonable grading and different treatment according to the condition of acute drugs poisoning would be helpful to improve the survival rates of acute poisoning and reduce medical costs.
4.Experimental study of astrocyte reaction to injury in vitro
Qi-Lin HUANG ; Wen-Qing CAI ; Ke-Cheng ZHANG
Journal of Third Military Medical University 2001;23(3):315-317
Objective To study the occurence, development and regulation of reactive gliosis with astrocyte (Ast) in vitro. Methods Ast was isolated and cultured in vitro and its model of reactive gliosis was established by scratching the cultured astrocytes. The reactivity and rules of Ast to injury was studied by morphological changes, RT-PCR, immunocytochemistry, in situ hybridization and imaging analysis. Results After scratching, the astrocytes showed typical features of reactive gliosis, with the hypertrophic cell body, thickened and lengtheded processes, and enhanced glial fibrillary acidic protein (GFAP) staining. In situ hybridization and RT-PCR analysis confirmed that the expression of GFAP mRNA was markedly increased. These changes occurred 1 d after scratching and reached the peak 5 to 7 d after injuring. Conclusion A model of reactive astrogliosis was successfully established in vitro which showed an active reaction to injury. The characteristics of reactive gliosis parallel that seen in vivo.
5.In vivo Breath Analysis by Extractive Electrospray Ionization-Mass Spectrometry for Investigation of Metabolic Responses to Traditional Chinese Medicine Massages
Teng-Gao ZHU ; Jing HAN ; Jun-Wen SHU ; Mu-Fang KE ; Dan WANG ; Wen-Jie LIU ; Nian-Xiang LIN ; Huan-Wen CHEN
Chinese Journal of Analytical Chemistry 2018;46(3):400-405
Traditional Chinese Medicine massage is a kind of physiotherapy which affects on specific parts of the body surface by means of training to regulate the function of the body to achieve the therapeutic effect. In this work,under positive detection model, the chemical fingerprint of exhaled breath from volunteers before and after receiving Traditional Chinese Medicine massage within m/z 50-1000 were detected by extractive electrospray ionization-mass spectrometry (EESI-MS). And through high resolution mass spectrometry analysis, the metabolites such as epinephrine (m/z 184. 0889), 3-(3-hydroxyphenyl) propionic acid (m/z 167.0615) and L-tryptophan (m/z 205. 0933) were successfully identified. Besides, chemical fingerprints of volunteers before and after receiving Traditional Chinese Medicine massage under different health condition were clearly differentiated via partial least squares discrimination analysis (PLS-DA). The results showed that Traditional Chinese Medicine massage could significantly change the metabolic process of volunteers. Moreover, it further indicated that the established method could provide a real time fashion to follow metabolic changes caused by Traditional Chinese Medicine massage.
6.Research on the correlation between lupus erythematosus cell and diseases activity in patients with systemic lupus erythematosus
Mai-Gui YANG ; Yang YANG ; Wen-Ke CAI ; Zhu-Ying ZHANG ; Shan-Luan ZHENG ; Ai-Lin FAN ; Ling QU ; Xiao-Ming WEI ; Xiao-Ke HAO
Chinese Journal of Rheumatology 2003;0(08):-
Objective To observe the morphologic changes of peripheral blood lupus cell in patients with systemic lupus erythematosus and investigate its relationship with disease activity in systemic lupus ery- thematosus.Methods Modified classical blood clotting method to observe the morphological changes of pe- ripheral blood lupus cells in 80 cases with systemic lupus erythematosus.Fifty cases were in active stage,and 30 cases were in stable stage.Comparison of serum autoantibody,complement and SLEDAI were also carried out.Results There was significant association between lupus cells in special morphous and autoantibody, such as anti-double-stranded DNA antibody,anti-nucleosome antibodies,complement C3、C4 and SLEDAI(r= 0.588,P=0.056:r=0.759,P=0.135;r=-0.648,P=0.058;r=-0.589,P=0.057,r=0.686,P
7.Role of transoesophageal echocardiography on periventricular closure of ventricular septal defects.
Wen-juan BAI ; Hong TANG ; Qi AN ; Ke LIN
Chinese Journal of Cardiology 2008;36(4):320-322
OBJECTIVETo evaluate the clinical value of transoesophageal echocardiography on periventricular closure of ventricular septal defects (VSD).
METHODSTransoesophageal echocardiography (TEE) was performed in 27 patients with VSD diagnosed by the transthoracic echocardiography examination (TTE) and prepared to receive periventricular closure of VSD for the purposes of choosing the appropriate occluder before VSD closure and guiding occluder release during the operation and evaluating the post operative effects of VSD closure 1 week post operation.
RESULTSThree patients with VSD not suitable for periventricular VSD closure according to TEE results were not operated, periventricular closure of VSD were successfully performed in 20 patients and minimal residual shunt was seen in 1 patient post operation, periventricular closure of VSD failed in 4 patients and these patients received surgical closure. TEE at 1 week post successfully with periventricular closure of VSD in the 20 patients showed that there were no residual shunts and the pulmonary artery pressure was significantly lower post operation compared to that of preoperation value.
CONCLUSIONTEE is helpful in choosing the suitable patients and occlude size, guiding occlude release and evaluating the post operative results for periventricular closure of ventricular septal defects.
Adolescent ; Cardiac Catheterization ; methods ; Child ; Child, Preschool ; Echocardiography, Transesophageal ; Female ; Heart Septal Defects, Ventricular ; diagnostic imaging ; therapy ; Humans ; Infant ; Male ; Young Adult
8.Production and Characterization of Thermotolerant Endoglucanase from Streptomyces xylophagus KX6
Ke-Xue GAO ; Run-Fang GUO ; Hong-Wei YU ; Ying-Min JIA ; Wen MA ; Yang LIN ; Shuo ZHOU ;
China Biotechnology 2006;0(05):-
A strain KX6,producing thermotolerant endoglucanase,was isolated from compost. The morpholo-gical identification and 16S rRNA sequence analysis showed it belongs to Streptomyces xylophagus. The production and characterization of endoglucanase from Streptomyces xylophagus KX6 was studied. Maximum endoglucanase yield of 0.538 IU/ml was achieved with medium pH8.0,containing CMC2Na 1.0% as carbon resource,soybean meal 1% as nitrogen resource,2% inoculating volume,30% 250 ml triangle flask bulk for medium volume at 40℃ 200r/min shaker for 48h. The endoglucanase exhibited optimum catalytic activity at pH7.0 and 50℃. The enzyme was stable at 50℃,and able to retain 60% of the full activity,when it was incubated at 60℃ for 1h.The enzyme was stable at pH6.0~7.0. All these findings suggest that the enzyme is a thermotolerant neutral endoglucanase.
9.Using westgard's method evaluation decision chart for judging method performance of routine biochemistry items on Roche Modular PPI testing system
Xiu-Ming ZHANG ; Song-Bai ZHENG ; Lei SUN ; Pei-Feng KE ; Ji MA ; Wen ZHANG ; Lian-Ying LIN ;
Chinese Journal of Laboratory Medicine 2001;0(01):-
Objective To judge method performance of routine biochemistry parameters on Roche Modular PPI testing system by using westgard's method evaluation decision chart.Methods We assessed imprecision(CV)from internal quality control and inaccuracy(bias)from external quality control evaluation.Combined estimates of imprecision and inaccuracy by plotting imprecision as the x-coordinate and inaccuracy as the y-coordinate to locate an expected operating point of every item on the chart.By comparing this operating point with allowable total errors(TEa),we can decide whether the performance is acceptable or not.Results In the 27 different parameters tested,imprecision and bias of calcium were 0.08 mmol/L and 0.06 mmol/L respectively,its performance was marginal.The imprecision of creatinine,urea,glucose, sodium,chloride and phosphorus were 3.20%,2.13%,1.52%,0.89 mmol/L,1.10% and 1.55%,the bias were 4.79%,0.96%,4.63%,0.80 mmol/L,1.74% and 4.13% respectively,their performance was good.M1 other 20 items were of excellence performance.Conclusions Routine biochemistry parameters on Roche Modular PPI testing system possessed good precision and accuracy,and their performance were acceptable.To judge method performance of biochemistry testing system by using westgard' s method evaluation decision chart was easy to do and suited for clinical laboratory.
10.Expression of nNOS and correlation with clinical prognosis in renal clear cell carcinoma
Wen XIAO ; Changfei YUAN ; Zhiyong XIONG ; Lin BAO ; Ning LOU ; Hailong RUAN ; Junwei TONG ; Haibing XIAO ; Ke CHEN ; Xiaoping ZHANG
Chinese Journal of Urology 2017;38(7):523-526
Objective To investigate the expression of neural-nitric oxide synthase (nNOS) in renal clear cell carcinoma and its clinical significance.Methods The expression of nNOS mRNA in 533 samples of TCGA database was analyzed with Student t test,and statistical analysis was performed to assess the relationship between nNOS expression and clinical prognosis with Kapla-Meier test.Western blot analysis of nNOS protein expression in 10 cases of clear cell renal cell carcinoma(ccRCC) from department of urology of Wuhan union hospital with student t test.Results The mRNA levels of nNOS in 72 cases of ccRCC in tumor tissues and adjacent tissues and were 2.99 ± 0.28 and-1.57 ± 0.17,it is significantly lower than those in adjacent tissues (P < 0.01).The mRNA levels of nNOS in 533 cases of ccRCC,in tumor tissues and adjacent tissues and were 2.99 ± 0.28 and-1.76 ± 0.05,it is significantly lower than those in adjacent tissues (P < 0.01).A total of 533 sample studies showed a low correlation between nNOS expression and clinical T stage,T1-1.59 ±0.08,T2-1.96 ±0.13,T3-1.90 ±0.09,T4-2.38 ±0.28 (P =0.0029) and -1.63 ±0.06 and-2.16 ± 0.13 between non-metastasis and no-metastasis (P =0.0009),and-1.57 ± 0.08 and-2.03 ± 0.11 between non-recurrence and recurrence (P =0.008).Survival analysis showed that the overall survival time were (40.3 ± 5.6) months and (48.3 ± 5.7) months in lower and higher nNOS expression,and disease free survival time were (37.1 ± 2.1) months and (40.3 ± 5.6) months in lower and higher nNOS expression,both with shorter time in low expression of nNOS (P < 0.01).nNOS proteins were 1.02 ± 0.16 and 0.61 ± 0.1 1 in tumor tissues and adjacent tissues with significantly lower expression(P<0.05).Conclusions The mRNA and protein of nNOS are lower in ccRCC with a poor prognosis of ccRCC.