1.Clinical study on secondary posterior chamber intraocular lensimplantation combined anterior segment reconstruction
Chinese Journal of Primary Medicine and Pharmacy 2005;0(11):-
Objective To eveluate the methods and effects of multiple combined surgery anterior segment reconstruction and secondary posterior chamber intraocular lens implantation. Methods Secondary intraocular lens implantation combined anterior segment was reconstructed in 43 aphakias with different anterior segment disorders. Anterior segment reconstruction included:synechotomy, reposition of iridodialysis, pupil reformation, membranctomy in the pupil erea,anterior vitrectomy. Results The surgery was successful in all patients. The patients were followed up in 6-12 months.The postoperative visual acuities in 36 eyes were ≥0. 3(83. 7% ) and round pupil in 33 eyes (76. 7 % ). No severe complications happened. Conclusion It can have better effect to perform of anterior segment reconstruction and secondary posterior chamber intraocular lens implantation in different conditions with surgeryskill and better equipment.
2.Observation on the effect of cetylpyridine chloride gargle in the treatment of oral Candida infection
Chinese Journal of Biochemical Pharmaceutics 2017;37(7):269-270,273
Objective To investigate the clinical efficacy of cetylpyridinium chloride gargle in the treatment of oral candidiasis.Methods Collected 45 cases of oral candidiasis patients admitted in our hospital from April 2015 to April 2017.Among them, 24 patients were treated with cetylpyridinium chloride gargle and treated as observation group.Rinse treatment in 21 cases, set as the control group.The oral pain score, mucosal atrophy score and mucosal erythema score were compared between the two groups.The HAMA anxiety scale and HAMD depression scale were used to evaluate the psychological stress.The HAMA score, HAMD score, blood glucose and blood glucose were compared between the two groups.Insulin levels were compared between the two groups of patients after oral mucosal examination positive rate and the incidence of adverse reactions.Results After treatment, the oral pain score, mucosal atrophy score and mucosal erythema score were significantly lower in the observation group than in the control group, the difference was statistically significant(P<0.05).The HAMA score, HAMD score and blood glucose level were significantly lower in the observation group than in the control group, the insulin level was higher than the control group, the difference was statistically significant(P<0.05).The positive rate was 20.83%(5/24)in the observation group and 52.38%(11/21)in the control group.The positive rate of oral mucosal examination in the observation group was significantly lower than that in the control group, the difference was statistically significant(P<0.05).There were no obvious adverse reactions during the treatment group.In the control group, only one case of oral mucosal congestion was found, but it was tolerable and disappeared after treatment.There was no significant difference in the incidence of adverse reactions between the two groups.Conclusion The use of cetylpyridinium chloride gargle in the treatment of oral candidiasis can relieve oral pain, mucosal atrophy, erythema symptoms and stress state, effective control of oral infection, and no significant adverse reactions、high safety.
3.IMMUNOHISTOCHEMISTRY STUDY AND LEVELS OF ENDOTHELIN-1 IN GASTRIC MUCOSA OF COLD-RESTRAINT-STRESS RATS
Yimin DUAN ; Zhaoshen LI ; Weiqi WAN
Medical Journal of Chinese People's Liberation Army 2001;0(08):-
To investigate the role of ET 1 in the pathogenesis of SU, a model was established by cold restraint stress(CRS) inducing rat ulcer, immunohistochemistry(IHC)ABC method and radioimmunoassay(RIA) methods were used to determine ET 1 content and to study the expression and location of ET 1 in stomach of normal and CRS rats,and to evaluate the ulcer index(UI). IHC showed that ET 1 was stained as brownish grains,localized in the cytoplasm of vascular endothelial cells, stomach smooth muscle cells, gastric epithelial and vascular smooth muscule cells around lamina muscularis mucosae in stomach. The proportion of ET 1 positive cells was significantly higher in 3h poststress gastric mucosa than in normal gastric mucosa in rats by IHC( P
4.Immunophenotype and expression of cytotoxic granule proteins of nasal NK/T cell lymphoma and its significance
Weiqi SHENG ; Hongfen LU ; Xiaoqiu LI
China Oncology 2001;0(02):-
Purpose: To study the immunophenotype and the expression of cytotoxic granule proteins of nasal NK/T cell lymphoma and its significance. Methods: 44 cases of nasal NK/T cell lymphoma were studied by the two-step method of DAKO EnVisionTM using a series of antibodies including CD3, CD20, CD43, CD45, CEI45RO, CD56, CD57, CD79?, TIA-1, granzyme-B and perform. Results: All the cases of nasal NK/T cell lymphoma were CD45 positive. 43% of the cases expressed CD3 with positive signal located in the cytoplasm, which was different from peripheral T cell lymphoma. 45% and 52% of the cases were CD43 and CD45RO positive respectively. Cases that reacted to CD56 accounted for 52% of the cases, 43% of which were also positive to CD3. Concerning the reactions to both CD3 and CD56, 10 cases showed CD3 + CD56 + , 13 showed CD3-CD56 + , 9 were CD3 + CD56- and 12 were CD3-CD56-. None of the 44 cases showed positive reaction to CD20, CD79? and CD57. All cases were reactive to TIA-1. 93% and 95% of the cases showed the reactions to granzyme-B and perform. All the controls were negative to TIA-1, granzyme-B and perform. Conclusions: The immunophenotypes of nasal NK/T cell lymphoma showed less consistency. CD56 was not always positive in the cases of this tumor. The different locations of the positive signal to CD3 showed that the cell lineage of this tumor was different from T lymphocytes. The high frequency of the staining by cytotoxic granule proteins, TIA-1, granzyme-B and perform, showed that these cells may have originated from NK cells. The distinctive differences in immunohistochemical staining of cytotoxic granule proteins in nasal NK/T cell lymphoma make their detection very useful and important in diagnosis and differential diagnosis.
5.Effect of electrical stimulation on neovascularization
Weiqi LI ; Qian WANG ; Lei ZHENG
International Journal of Biomedical Engineering 2009;32(2):117-120,124
Human biological activities last with the production of bioelectrical phenomenon.Once this electrophysiologieal environment changes,the body will be suffering from illness.Based on the development of electrophysiological and electrical stimulation,researchers have proven that electrical stimulation is beneficial to the improvement of function and statue of human body.As we know,many pathological changes such as wound healing,tissue regeneration,tumor growth and metastasis are all accompanied by neovascularization as well as hioelectrical phenomenon.This paper sives a review ofthe recent development of study on electrical stimulation effects on theneovascularization.
6.Effects of eyes-closed and eyes-open EEG field powers on auditory P300 evoke potentials
Weiqi CUI ; Guozhen LI ; Andrew CHEN
Chinese Journal of Behavioral Medicine and Brain Science 2011;20(11):999-1001
ObjectiveTo investigate the effects of eyes-closed (EC) and eyes-open (EO) EEG field powers on the auditory P300 evoke potentials.MethodsThe EEG was recorded in 12 healthy male college students (20 ~24 years) respectively in their eyes-closed and eyes-open states,and then the auditory P300 paradigm was performed.Results① Alpha band was distributed at the posterior-occipital area,while Alpha-1 (7.5~9.5 Hz) field power were EC as (2.62 ±0.81 ) μV2 and EO as ( 1.80 ±0.56) μV2,with statistical significance (P < 0.01 ) ; Alpha-2 ( 10 ~ 12 Hz) field power were EC as ( 8.55 ± 1.85 ) μV2 and EO as (4.95 ± 1.59 )μV2,also with statistical significance (P<0.05).②In P300,the Common stimulus elicited clear component N1 (90ms)and P2 (180ms) in the ERPs after stimulus,while there were no significant differences between EC and EO states.Correspondingly,the rare stimulus elicited clear component N2 (207 ms) and P3 (313 ms) in the ERPs after stimulus on-set.Comparing the differences of field potentials of the rare stimulus between the two states,N2field potential in EC ( (0.01 ± 0.71 ) μV) was smaller than that in EO ( ( - 2.13 ± 0.80 ) μV ),with statistical significance (P < 0.05 ) ; while P3 field potential in the EC ( ( 4.16 ± 1.08 ) μV ) was smaller than that in EO ( (4.78 ± 1.20) μV),but without statistical significance (P > 0.05 ).ConclusionThe alpha field power is higher in eyes-closed than in eyes-open state,while performing the same auditory P300 paradigm,significant reduction of field potential in the N2 component are observed in eyes-closed than in eyes-open state.
7.The mental rotation of hand imagery: gender differences of the recognition behaviors
Guozhen LI ; Weiqi CUI ; Zhaoran CHEN
Chinese Journal of Behavioral Medicine and Brain Science 2011;20(5):439-440
Objective To investigate the gender differences and the effect of three factors(the angle of rotation, left/right,palm/back) on hand mental rotation. Methods 40 healthy adults (20 males and 20 females, age; 18~26 years) were enrolled in this study. By simulation of human hand as picture stimuli,participants were instructed to decide as quickly as possible whether the stimulus was a left or right hand. The accuracy rate and reaction time of the behavior task were quantified. Results ① the subjects' reaction speed was far slower at 180° than 0°(P<0.01). ②On judgment of 0° back picture,females were faster than males(left back: males( 1033. 16 ±245.85) ms,females( 853.15 ± 142.79) ms,P=0.014; right back; males( 973.07 ±217.11) ms;,females (796.28 ±146.67 )ms, P = 0.016). And,the right hand was responded faster than left hand,with statistical significance (males; P = 0.028, females; P=0.038). ③The time of females in judging the 0° hand back ( left (853. 15 ± 142.79) ms,right (796. 27 ± 146. 67 ms) ) was shorter than palm(left ( 1002. 72 ± 227. 91) ms,right ( 986.06 ± 230. 03) ms), reached statistical significance ( both at P < 0. 001). In contrast, males in judging the 180° pictures, the speed of reaction to back(left ( 1252. 70 ±269. 35) ms,right ( 1216. 68 ±293. 54 )ms) was slower than palm with statistical significance (left: P < 0. 01, right: P = 0. 015). Conclusion The three factors (angle of rotation,left/right,and palm/back) all exert effect on the behavior of hand mental rotation. It really has gender difference on hand mental rotation. Females response faster than males.
8.Distributive Properties and Susceptibility of Clinical Candida spp Isolates to Antifungal Agents
Li LI ; Weiqi SU ; Yingchun JI ; Xia GUO ; Qinghua YU
Chinese Journal of Nosocomiology 2006;0(06):-
OBJECTIVE To study the distributive properties and susceptibility of yeasts to six antifungal agents. METHODS To analyze the distributive properties of 264 clinical Candida spp isolates and study the susceptibility to amphotericin B,nystatin,fluconazole,ketoconazole,miconazole and clotrimazole.The susceptibility of yeasts was tested according to the National Committee for Clinical Laboratory Standards guideline(NCCLS M27-A2). RESULTS Strains of Candida albicans were the most frequent organism isolated accounted for 62.5% of all the isolates.C.tropicalis,C.glabrata,and C.parapsilosis accounted for 20.8%,12.5%,and 1.9%,the others accounted for only 2.3%.The main infected organs were lungs,urinary tract,and digestive tract;the susceptibility tests showed strains of Candida spp to nystatin,amphotericin B,and fluconazole were more active than to the other antifungal agents.The resistance to triazole antifugal agents could be shown. CONCLUSIONS We should strengthen the diagnosis of Candida spp and strengthen the surveillance on susceptibility of clinical isolates Candida spp so as to help the doctors choose the antifungal agents reasonably.
9.Surveillance of Antimicrobial Resistance in Clinical Isolates from Qingdao Municipal Hospital 2007
Li LI ; Weiqi SU ; Guixia FU ; Tiange WU
Chinese Journal of Nosocomiology 2006;0(07):-
OBJECTIVE To investigate the distribution and resistance of clinical isolates to antimicrobial agents commonly used.Antimicrobial agents should be used rationally based on the results of susceptibility testing.METHODS The clinical isolates were identified with W/A-40 or VITEK-32.The results were analyzed by WHONET 5.3 software according to CLSI 2005.RESULTS A total of 2892 clinical isolates were collected in 2007.Gram-negative bacilli accounted for 68.2% and Gram-positive cocci accounted for 31.8%.The top eight pathogens were Pseudomonas aeruginosa,Escherichia coli,Klebsiella spp,Acinetobacter spp,coagulase-negative Staphylococcus,Enterobacter spp,Serratia spp and S.aureus.About 76.4% of S.aureus isolates were MRSA,81.6% of coagulase-negative Staphylococcus isolates were meticillin-resistant.Under 20.0% of Enterobacteriaceae strains were resistant to cefoperazone/sulbactam,imipenem and piperacillin/tazobactam.About 16.3% and 32.5% of P.aeruginosa isolates were resistant to cefoperazone/sulbactam and imipenem.CONCLUSIONS Gram-negative bacilli were dominant isolates in our hospital during 2007.P.aeruginosa is the most frequent pathogenwith severe antibiotic resistance.Enterobacteriaceae are susceptible to cefoperazone/sulbactam and imipenem.
10.Design of Electric Stimulator of Cell Culture
Shuyan GUO ; Xuefei YU ; Lei ZHENG ; Weiqi LI ; Zhe LI
Chinese Medical Equipment Journal 1993;0(05):-
Objective To design an instrument that can provide a series of pulse to stimulate cell by means of external electric field, the structure and function of organism can retrieve. Methods AVR MCU, produced by America ATMEL Co., is used as the core of the system. The program has been developed to adjust three pulse's parameters, including amplitude, frequency and pulse duration. The cooperation between DAC and OP completes the transformation from monopole pulse to bipolar pulse. The booster PB50 amplifies the current and voltage of the output. Results The Stimulator can provide bipolar pulse, amplitude: up to ?40V, frequency: 0.01Hz -10Hz, pulse duration: 0.4ms -24ms. Conclusion Cooperating with special electrode board, the instrument can provide effective electric field for cell simulating. At present the instrument has been used in the research of the endothelial progenitor cell.