OBJECTIVE:To provide recommendation for the clinic on the optimal application concentration of potassium permanganate collyria.METHODS:3different concentrations of potassium permanganate collyria were prepared,the local ir-ritation of2of which on eyes of115conjunctivitis cases receiving conjunctival sac irrigation and the effects of the3different concentrations of potassium permanganate collyria on the comfort degree,corneal epithelium and bacterial colonies before and after eye irrigation of18pairs of oculus normalis receiving conjunctival sac irrigation were observed.RESULTS:Of the total115conjunctivitis cases,98(about85%)complained to have severe irritation;8cases(about7%)felt unbearable because of the strong irritation.Degree of comfort decreased with the elevation of concentration of collyria,while failed to have any effect on corneal epithelium and the numbers of bacterial colonies before and after irrigation.CONCLUSION:The recommended concentration of100ml∶1.5mg of potassium permanganate collyria for the irrigation of conjunctival sac in the clinic.

Objective To study the effect of acute hypervolemic hemodilution on expression of serum chemokine interferon-inducible protein 10 in patients undergoing total hip replacement.Methods Twenty ASA Ⅰ or Ⅱ patients undergoing elective total hip replacement were randomly divided into 2 groups (n=10 each):HES group and LR group.The patients in HES group received 6% HES 20 ml/kg in rate of 30 ml/(kg·h) after anesthesia.The patients in LR group received Ringer's solution 20 ml/kg in rate of 30 ml(kg·h) after anesthesia.The blood loss,blood transfusion and the time of operation were recorded.Venous blood samples were taken before anesthesia (T0),at the begining of operation (T1),30 min after operation (T2),and at the end of operation (T3),in determination of serum chemokine interferon-inducible protein 10.Results The blood loss and the blood transfusion in HES group were (560±90)ml and (200±100) ml,those were significantly lower than that in LR group[(810±110)ml and (600±200)ml].The IP-10 concentrations were significantly increased at T2～T3 as compared to baseline value at T0 in both groups,but were higher in LP group[(77.3±13.8) ng/L and (89.9±15.1) ng/L]than those in HES group [(62.8±13.6) ng/L and (65.4±10.2) ng/L,P＜0.05].Conclusions Acute hypervolemic hemodilution can abate blood loss and blood transfusion during total hip replacement operation.Preoprative infusion with hydroxyethyl starch can attenuate the immunological depression during operation and anesthesia.

Objective To study the effect of acute hypervolemic hemodilution on expression of plasma bac-tericidaL/permeability-increasing protein (BPI) in patients undergoing total hip replacement. Methods Twenty ASA Ⅰ-Ⅱ patients undergoing elective total hip replacement were randomly divided into two groups (n=10 for thesia. The blood loss,blood transfusion and the time of operation were recorded. Venous blood samples were taken before anesthesia (T0) ,at the begining of operation (T1) ,30 min after operation (T2) ,and at the end of operation (T3) for determination of plasma bactericidal/permeability-increasing protein. Results The blood loss and the blood transfusion in HES group were significantly lower than that of LR group[blood loss: (560±90)ml vs (810±110) ml and blood transfusion: (200±100) ml vs (600±200) ml,t=5.562 and 5.657,P<0.001]. The plasma BPI concentrations in HES group were significantly increased at T2～T3 as compared to baseline value at T0 [(8.9±1.6)μg/L,(13.4±1.2)μg/L and (4.9±1.2)μg/L,P<0.05]. The plasma BPI concentrations in LR group were significantly increased at T2～T3 as compared to baseline value at T0 [(7.3±1.2)μg/L,(9.9±0.8) μg/L and (5.0±1.1)μg/L,P<0.05],but were lower than those in HES group (t=2.530 and 7.674,P=0.021 and 0.001 ). Conclusion Acute hypervolemic hemodilution with 200/0.5 hydroxyethyl starch can reduce blood transfusion during total hip replacement operation and also can increase the BPI level which would beneficial for the immunological function.

OBJECTIVE:To get to know the preoperative and postoperative medication of patients with cataract.METHODS:The preoperative and postoperative medication of 564 cases with cataract extraction in our hospital from September 2004 to October 2004 was analyzed statistically.RESULTS:Antibacterial eye gutta was mainly used before cataract extraction while compound eye gutta containing antiseptic drugs and glucocorticosteroid were chiefly used after cataract operation.CONCLUSION:The preoperative and postoperative medication for patients with cataract in our hospital was reasonable.

Objective To investigate the different expressions of pathological tissue and serum microRNAs (miRNAs)in Hirschsprung disease(HSCR). Methods Pathological colon tissues and serum samples were obtained from 52 confirmed HSCR cases respectively by surgery and pathology and from 52 matched controls,respectively. An initial screening of the tissues and serum microRNA expression were performed through TaqMan Low Density Array. The candidate tissue and serum miRNAs were validated by quantitative real - time - PCR in the 20 paired array samples and extra 32 paired samples after the integration of the screening result. The bioinformatical software online including miR-base,Target Scan,PicTar and MiRanda were used to predict the target mRNA of the consistent microRNAs in the tis-sues and the serum. Results Compared with the controls,47 microRNAs were differently expressed in HSCR tissues, including 17 up - regulated miRNAs and 30 down - regulated miRNAs;32 upregulated miRNAs were also detected to be differently expressed in the HSCR serum. Among these microRNAs,miR - 218 - 1 and miR - 885 - 5p were identi-fied to have a consistent significant different expression in both tissues and the serum,which were validated as high -expressed in microarray samples and expanded 32 paired samples(miR - 218 - 1:tissue array 0. 017 58 ± 0. 002 29 vs 0. 003 37 ± 0. 000 50,P ﹤ 0. 001;tissue expanded expression 0. 013 53 ± 0. 001 74 vs 0. 004 43 ± 0. 000 60,P ﹤0. 001. miR - 885 - 5p:tissue array 0. 000 30 ± 0. 000 11 vs 0. 000 04 ± 0. 0000 08,P = 0. 027 6;tissue expanded ex-pression 0. 004 59 ± 0. 000 16 vs 0. 000 04 ± 0. 000 01,P = 0. 014 5. miR - 218 - 1:serum array 0. 769 60 ± 0. 285 50 vs 0. 045 14 ± 0. 015 07,P = 0. 015 5;serum expanded expression 1. 151 00 ± 0. 430 00 vs 0. 023 07 ± 0. 003 81,P =0. 008 7. miR -885 -5p:serum array 1. 595 00 ±0. 441 70 vs 0. 169 40 ±0. 034 46,P =0. 001 2;serum expanded expres-sion 1. 689 00 ±0. 453 00 vs 0. 146 10 ± 0. 031 24,P = 0. 001 2). Specifically,the target genes of these 2 microRNAs were RET,PLAG1 and NeuroD1,which had been reported to be directly related to HSCR. Conclusions Significantly dif-ferential expressed miRNAs exist in the pathological tissue and the serum of HSCR. MiR - 218 - 1 and miR - 885 - 5p, which showing consistent differential expression,may be involved in the pathogenesis of HSCR.

Objective To study the relationship between the expression of p53 and its downstream effecter p21~(waf1)protein and multi-drug resistance(MDR) of Tca8113/BLM cell line.Methods The cDNA of wildtype p53 gene was introduced into the drug-resistance cell line Tca8113/BLM by Lipofectamine-mediated transfection.The expression of p53 mRNA in Tca8113/BLM and its parental counterpart Tca8113 cell lines were analyzed using molecular beacons.The expression of p53,p21~(waf1),P-gp,and MRP proteins in Tca8113/BLM cell line transfected by wt-p53 cDNA,the untransfected control Tca8113/BLM cell line,its parental counterpart Tca8113 were analyzed by Western blotting.MTT assay was used to determine the drug-sensitivity of different cell lines.The cell cycle distribution and apotosis of different cell lines were also observed by flow cytometery(FCM) and laser confocus microscope(LCM),respectively.Results The expression of p53 protein was significantly lower,and no p21~(waf1) protein was detected in Tca8113/BLM cells.The protein expression of P-gp and MRP were significantly higher in Tca8113/BLM cells than in Tca8113 cells.By Western Blotting,the expression of p53 and p21~(waf1)proteins was significantly increased,while the expression of P-gp and MRP proteins was significantly decreased in Tca8113/BLM/p53 cells.Comparing to Tca8113/BLM cells,the sensitivity of BLM treatment in Tca8113/BLM/p53 cells was 10.1 fold increased.Tca8113/BLM/p53 cells decreased at G1 and S phase,and increased at G2 phase.LCM results showed that the apoptosis of Tca8113/BLM/p53 cells was more obvious than Tca8113/BLM cells when treated with the drug BLM.Conclusion The multi-drug resistance in Tca8113/BLM cell line is involved in down-regulation of p53 and p21~(waf1) protein levels,and up-regulation of P-gp and MRP protein levels.

Objective To develop a multiplex sequence-specific PCR assay for simultaneous screening of 5 types of JAK2 mutations and investigate its clinical application value. Methods Multiplex sequence-specific PCR assay for simultaneous screening of JAK2 V617F, K539L (include 2 types of gene mutations), N542-E543del and E543-D544del mutations were developed. 115 patients with myeloproliferative diseases (MPD) including 61 polycythemia vera (PV) cases, 43 essential thrombocythemia (ET) cases and 11 primary myelofibrosis (MF) cases were analyzed. Results The assay can screen the 5 types of JAK2 mutations efficiently. The detection sensitivity is 1% for JAK2 V617F mutation and 0.1% for the other mutations. JAK2 V617F mutation and JAK2 exon12 mutation were detected in 56 and 3 of the 61 PV samples, respectively. 27 of the 43 ET samples and 6 of the 11 MF samples were JAK2 V617F positive, but no JAK2 exon12 mutation was found in both groups. The 3 cases carrying JAK2 exon12 mutation had the clinical feature of erythrocytosis and erythropoietin-independent erythroid colony formation but without apparent leukocytosis, thrombocytosis and splenectasis. Conclusion The assay can simultaneously screen 5 types of JAK2 mutations with high sensitivity and thus lead to an increased detection rate.

Objective To explore the incidence of tibial plateau fracture with ligament injuries and the early diagnosis and management of the condition. Methods Fifty seven cases of tibial plateau fractures which had been treated operatively from Jan. 2001 to Jun.2003 and had satisfactory reduction of the articular surface were reviewed. The stability of their knee joints was analyzed. Results The follow up lasted 6 to 30 months with an average of 15 months. The incidence of knee unstability was low. The four potential reasons for the postoperative knee stability were found to be: 1) the low prevalence of ligament injury with displaced fractures of tibial plateau; 2) incomplete ligament disruption or mild ligament injury; 3) anatomic reduction and rigid internal fixation; 4) fine and detailed plan for immobilization and functional exercise. Conclusion The prevalence of complete ligament disruption is low, and nonoperative management can result in satisfactory outcomes for tibial plateau fracture with incomplete ligament injury.

Objective: To dynamically evaluate left ventricular perfusion, global and local functional changes during left ventricular aneurysm (LVA) formation and to explore the relationship between the size of LVA and LVEF, LVESV, LVEDV by gated99mTc-MIBI SPECT (GSPECT) and gated18F-FDG PET metabolic (GPET) imaging in experimental pigs. Methods: LVA model was established by occlusion of left circumlfex artery (LCX) and placing an Ameroid constrictor at the proximal end of left anterior descending artery (LAD) in a total of 16 Chinese mini-pigs. At the 1st, 4th and 8th weeks of surgery, the changes of total perfusion defect (TPD), LVA formation and LVEF, LVESV, LVEDV were dynamically evaluated by GSPECT and GPET; the relationships between the size of LVA and LVEF, LVESV, LVEDV were analyzed respectively.Results: There were 5 pigs died in surgery and 2 died at the 1st week of modeling. According to golden (pathological) standard, 9 animals successfully ifnished the dynamic imaging study. At the 1st week of (basic) modeling, 4 animals formed large LVA, 2 formed small LVA at the apex and 3 without LVA formation. At the 4th and 8th weeks of modeling, dynamic imaging presented that the animals with large LVA had gradually increased range and degree of perfusion defect, LVEDV, LVESV, while gradually decreased LVEF; the above indexes were relatively stable in animals with small or none LVA. In addition, the size of LVA was related to LVEF (r=-7.26), LVEDV (r=0.855) and LVESV (r=0.825), allP<0.05. Conclusion: In experimental pigs, at the beginning of LVA formation, large range and severe perfusion defect may cause large aneurysm, the LV functional damage and remodeling may gradually increase and the prognosis is poor; in contrast, the animals with small or none LVA have better prognosis and usually without ventricular remodeling; which implies that in acute phase of LVA formation, the size of aneurysm may predict the trend of global LV systolic function and remodeling at the early stage.

OBJECTIVELow hairline is one of the most troublesome problem in auricle reconstruction. There was no satisfactory way to manage the problem. This article discuss surgical depilation to deal with this problem and reconstructed auricle.

METHODSAccording to the degree of the low hairline, Postaurical scalp was expanded and part of the lower follicles within the dermal were removed, or postaurical scalp that part of lower follicles and dermal had been removed was expanded and covered skeleton of ear with this expanded skin to reconstructed auricle.

RESULTSAuricles were reconstructed with this method in 152 lowhairline microtial cases, the result was very satisfactory.

CONCLUSIONThis procedure is an effective way to deal with low hairline in reconstructing auricle.

Adolescent ; Adult ; Child ; Ear, External ; abnormalities ; surgery ; Female ; Hair Removal ; methods ; Humans ; Male ; Reconstructive Surgical Procedures ; methods ; Scalp ; surgery ; Surgical Flaps ; Tissue Expansion