1.The Clinical Observation of Hydroxyapatite Prosthesis Implantation through Lateral Rhinotomy Approach on the Orbit
Journal of Kunming Medical University 2016;37(8):97-100
Objective To observe exposure rates of hydroxyapatite artificial eye by comparing hydroxyapatite prosthesis implantation through lateral rhinotomy approach on the orbit and traditional sclera shell hydroxyapatite prosthesis implantation.Methods After eye content was enucleated at postoperative stage I,75 patients received hydroxyapatite prosthesis implantation,among which 26 received direct sclera shell prosthesis implantation (group A) and 49 received implantation through lateral rhinotomy approach on the orbit (group B).During postoperative follow-up from 6 months to 5 years,exposure rates of hydroxyapatite artificial eye under two operation ways were observed and analyzed by x 2 test.Results According to observation,8 cases were exposed in the group A,and 2 cases were repaired by fascia and conjunctival repair.Six cases were healed by prosthesis and sclera replacement.In group B,only 1 case was exposed slightly and recovered after simple conjunctival repair.The incidence of the eye exposure rate using two kinds of operation methods in group A is significantly higher than that in group B (P < 0.05) The difference was statistically significant.Conclusion The exposure of hydroxyapatite artificial eye can be effectively avoided and postoperative complications can be reduced by hydroxyapatite prosthesis implantation through lateral rhinotomy approach on the orbit among patients with severe eyeball ruptures,painful eyeballs of no light perception and atrophy eyes.
2.Three platinum-based regimens to treat patients with advanced NSCLC:a clinical investigation
Litao LI ; Wei WANG ; Yanming DENG
China Oncology 1998;0(04):-
0.05). For the toxicity,Neutropenia and anemia were common in the three regimens. Thrombocytopenia was significantly mild on the NP regimen. For the PC regimen,gastrointestinal toxicity and nephrotoxicity were mostly mild,and peripheral neurotoxicity was most common. Conclusions:Efficacy was not significantly different between the three investigated regimens. These regimens could be use as first-line chemotherapy in advanced NSCLC. Toxicities of these regimens were different,so clinicians should apply the chemotherapy according to individual characteristics of patients.
3.Relationship among severity of cerebral infarction, arteriosclerosis and serum CysC level in young and ;middle-aged patients with atherosclerotic cerebral infarction
Litao GAO ; Jing WANG ; Jialan YAN ; Yu XU ; Li WANG
Chinese Journal of cardiovascular Rehabilitation Medicine 2017;26(1):37-40
Objective:To explore relationship among severity of cerebral infarction (CI) ,arteriosclerosis and serum level of cystatin C (CysC) in young and middle‐aged patients with atherosclerotic cerebral infarction (ACI) .Methods:A total of 82 young and middle‐aged ACI patients treated in our hospital from Feb 2013 to Sep 2015 were enrolled .According to CI volume ,they were divided into small infarction group (n=36 ) , medium infarction group (n=22 ) and large infarction group (n=24);according to CI severity ,they were divided into mild CI group (n=54) and severe CI group (n=28);ac‐cording to atherosclerotic plaque nature ,they were divided into stable plaque group (n=45) and unstable plaque group (n=37) .Another 46 healthy people were regarded as healthy control group .Serum CysC level during emergency period and recovery period and carotid intima‐media thickness (IMT) were measured and compared among all groups .Results:Com‐pared with emergency period ,there was significant reduction in serum CysC level in all subgroups of ACI during recovery period , P<0. 01 all;compared with healthy control group ,there were significant rise in serum CysC level [recovery peri‐od:(0.81 ± 0.24) mg/L vs .(1.03 ± 0.13) mg/L vs .(1.09 ± 0.19) mg/L vs .(1.18 ± 0.10) mg/L] during emergency period and recovery period in small ,medium and large infarction group ,and that of large infarction group was significantly higher than those of small and medium infarction group (P<0.01 all) .Compared with healthy control group ,there was significant rise in serum CysC level [recovery period:(0.81 ± 0.24)mg/L vs .(1.07 ± 0.15)mg/L vs .(1.19 ± 0.16)mg/L] during emergency period and recovery period in mild and severe infarction group ,and that of severe infarction group was significantly higher than that of mild infarction group ,P<0.01 all .Compared with healthy control group ,there were sig‐nificant rise in serum CysC level[(0.81 ± 0.24)mg/L vs .(1.18 ± 0.15)mg/L vs .(1.39 ± 0.27)mg/L]during emergency pe‐riod and IMT [(0.72 ± 0.10) mm vs .(1.24 ± 0.17) mm vs .(1.30 ± 0.14) mm]in stable plaque group and unstable plaque group ,and those of unstable plaque group were significantly higher than those of stable plaque group ,P<0. 01 all .Conclu‐sion:The serum CysC level significantly rises in ACI patients ,it can be used as an index for ACI prevention and treatment .
4.MRI diagnosis of epithelioid angiomyolipoma of liver
Zhaohua WANG ; Dong WU ; Jun HOU ; Litao ZHANG ; Qingkui KONG
Chinese Journal of Radiology 2012;46(9):803-806
Objective To retrospectively analyze the MRI findings of epithelioid angiomyolipoma (EAML) of the liver.Methods The MR findings in a series of 8 patients with pathologically proven liver EAML were retrospectively analyzed. Distribution of lesions, signal intensity characteristics, tumor vascularity,feeding arteries and draining veins, fat, hemorrhage, cystic necrosis and pseudocapsule formation were evaluated and correlated with pathology.Results A single lesion was found in each of the 8 patients.All eight lesions showed long T1,long T2 inhomogeneous signal,and high DWI signal. There was only 1 lesion presented with fat,3 lesions presented with hemorrhage. On the dynamic contrastenhanced MRI scan,all 8 lesions manifested as hypervascular with tortuous vasculature in 7 patients.Dilated feeding arteries and draining veins were seen in 5 patients. Conclusion Liver EAML has unique MR imaging features,exhibiting hyperwascular lesions with dialated,tortuous feeding arteries,and draining veins on DCE MRI,which could be helpful in the differential diagnosis of liver EAML.
5.Expression, purification of nattokinase in Pichia pastoris and preparation of its polyclonal antibody
Litao CAI ; Xiang XU ; Tingting WANG ; Meixing YU ; Yanyan YANG
Chinese Journal of Biochemical Pharmaceutics 2010;31(1):10-13
Purpose To indicate the expression of nattokinase (NK) in Pichia pastoris , an emulsion was prepared with the purified NK to prepare polyclonal antibody. In order to establish sandwich enzyme-linked immunosorbent assay (ELISA) to assay NK in organism, furthermore to lay the foundation for researching in vivo metabolism and function of NK. Methods The NK gene was cloned into a Pichia pastoris expression vector pHBM905A to construct the recombinant plasmid pPRONK.The recipient cell of Pichia pastoris GS115 was transformed with pPRONK which had been cut by restriction enzyme Sal I , under the induction of methanol. The expressed production is purified by salting out and ultrafiltration membrane. An emulsion was prepared with the purified NK and injected into rabbits to prepare polyclonal antibody. Results NK was expressed and identified by SDS-PAGE.The molecular mass of expressed production is about 27 kD.The fibrin plate assay indicated that the NK protein can cleavage fibrin effectively. ELISA analysis indicated that the polyclonal antibody titer is about 1:8 000. Western blot demonstrated that there was a special strap nearby 27 kD. Conclusion NK was successfully expressed in Pichia pastoris , the production can cleavage fibrin effectively and it had great immunogenicity.
7.Application effectiveness of clinical pathways for pediatric asthma: A systematic review
Guozhen GAO ; Litao WEN ; Miaolan GUO ; Shaoling WANG
Chinese Journal of Practical Nursing 2014;30(33):46-50
Objective To evaluate the effectiveness of clinical pathways for pediatric asthma.Methods The literatures on the application of clinical pathways for pediatric asthma were collected in the databases such as PubMed,Cochrane Library,Ovid,ScienceDirect,EBSCOhost,CNKI,Wanfang and CBM while a manual search was added.The search was performed from 1980 to 2014.Two reviewers independently screened references,extracted data and assessed the risk of bias.Data was pooled and analyzed by using Revman 5.2 version.Results Eleven studies involving 2 207 participants from nearly 1 048 relevant studies met the inclusion criteria.1 174 participants were in the clinical pathway group while the other 1 033 participants were in the control group.Meta-analysis result showed that patients with asthma in a clinical pathway had a shorter length of stay,less medical cost,reduced rate of emergency room visits,and improved health education.However,clinical pathway did not appear to reduce readmission.Conclusions Clinical pathway can significandy reduce the length of hospital stay,cost,rate of emergency room visits and improve health education.
8.Effect of 1, 25(OH)2D3 on the proliferative ability of and methylation levels of genomic DNA and proliferation-associated gene promoter in human HaCaT keratinocytes
Yanling JIANG ; Ming ZHAO ; Gongping LIANG ; Litao WANG ; Yuwen SU
Chinese Journal of Dermatology 2013;46(12):885-888
Objective To estimate the influence of 1,25(OH)2D3 on the proliferative ability of and methylation levels of genomic DNA and proliferation-associated gene promoter in human HaCaT keratinocytes.Methods Some cultured HaCaT cells were treated with 1,25 (OH)2D3 of 10-6,10-7 and 10-8 mol/L for 24 hours,then,methyl thiazolyl tetrazolium (MTT) assay was carried out to evaluate the proliferative activity of cells,and a global DNA methylation quantification kit was used to determine the global DNA methylation level.Real-time PCR was conducted to quantify the mRNA expression of DNA methyl transferases (DNMTs) and methyl-DNA binding domain (MBD) proteins,and methylation-specific PCR (MS-PCR) to evaluate the methylation status of promoter region in the programmed cell death 5 (PDCD5) and tissue inhibitor of metalloproteinase 2 (TIMP2) genes,in HaCaT cells after 24-hour treatment with 1,25 (OH)2D3 of 10-6 mol/L.The HaCaT cells receiving no treatment served as the control.Results Compared with the untreated HaCaT cells,those treated with 1,25(OH)2D3 of 10-6 mol/L showed significantly down-regulated proliferative activity (0.152 ± 0.027 vs.0.290 ± 0.017,P < 0.01),global DNA methylation level (0.187 ± 0.071 vs.0.316 ± 0.049,P < 0.05),DNMT3a and DNMT3b mRNA expression levels (P < 0.01 or 0.05),but markedly upregulated mRNA expression levels of MECP2,MBD2,PDCD5 and TIMP2 (P < 0.01 or 0.05).Moreover,the DNA methylation levels within the promoter region of PDCD5 and TIMP2 genes were significantly lower in HaCaT cells treated with 1,25 (OH)2D3 of 10-6 mol/L than in the control cells (0.38 ± 0.135 vs.0.72 ± 0.121,0.46 ± 0.172 vs.0.68 ± 0.133,both P< 0.05).Conclusions 1,25(OH)2D3 may down-regulate the global genomic DNA methylation level of,and modulate the expression of DNA methylationmodifying genes in,HaCaT cells.Furthermore,1,25 (OH)2D3 can decrease the promoter methylation levels but induce the overexpression of PDCD5 and TIMP2 genes,and decelerate the proliferation of HaCaT cells.
9.Influence on curative effect and blood brain barrier function of minimally invasive puncture drainage in treatment of patients with hypertensive intra-cerebral hemorrhage
Yifei WANG ; Litao ZHANG ; Zhengmin CHU ; Gao CHEN
Chinese Journal of Integrated Traditional and Western Medicine in Intensive and Critical Care 2017;24(3):249-252
Objective To explore the influence of minimally invasive puncture drainage on blood brain barrier (BBB) function and its mechanism.Methods Ninety-two patients with hypertensive intra-cerebral hemorrhage (HICH) in the Department of Neurosurgery of Jiaxing Affiliated Second Hospital of Zhejiang Province were divided into a control group and an observation group, according to random number table method, 46 cases in each group. In the control group, the conventional craniotomy was performed, while in the observation group, minimally invasive puncture drainage was carried out to remove the hematoma. The National Institute of Health Stroke Scale (NIHSS) were used to evaluate the neural function, the level of serum myelin basic protein (MBP) was detected by enzyme linked immunosorbent assay (ELISA), the central nervous specific serum protein S100 level was measured by electrochemical luminescence method, the albumin levels in serum and cerebrospinal fluid were determined by automatic biological analyzer, and the BBB index was calculated. After 14 days of surgery, the curative effect and incidence of complications of two groups were observed.Results After surgery, the NIHSS scores of two groups were obviously lower than those before surgery, and the degree of descent in observation group was more significant than that in the control group (score: 3.68±2.39 vs. 5.43±3.89,P < 0.05); after surgery, the levels of MBP, S100, albumin in cerebrospinal fluid and BBB in two groups were higher than those before surgery [MBP (μg/L): 3.02±0.28 vs. 3.81±0.29, S100 (μg/L): 0.95±0.24 vs. 1.34±0.27, cerebrospinal fluid albumin (μg/L): 9.89±0.78 vs. 21.43±1.14, BBB index: 0.22±0.04 vs. 0.48±0.05], the differences being statistically significant (allP < 0.05), but the change values in the observation group were less significant than those in the control group. The total effective rate in observation group was significantly higher than that in the control group [84.78% (39/46) vs. 65.22% (30/46),χ2 = 4.696,P = 0.030]. The incidence of wound infection, gastrointestinal bleeding in observation group was markedly lower than that in the control group [16.67% (6/46) vs. 36.96% (17/46), χ2 = 4.120,P = 0.042].Conclusion The minimally invasive puncture drainage has unequivocal clinical curative effect in treatment of patients with HICH, it can protect the nerve and BBB functions and reduce the incidence of complications.
10.The effect of reoperation on the prognosis of gallbladder carcinoma patients found by first cholecystectomy
Yunli ZHANG ; Jianmin GUO ; Xinbao WANG ; Litao YANG ; Lixin ZHOU ; Yian DU ; Bing WANG
Chinese Journal of General Surgery 2012;27(7):557-559
Objective To investigate the effect of the second resection for unsuspected gallbladder carcinoma discovered after cholecystectomy.Methods A retrospective clincopathological analysis was conducted for 45 cases of unsuspected gallbladder carcinoma receiving second operation at our hospital from January 2000 to December 2010.Result Of the 45 cases with unsuspected gallbladder carcinoma (33 pT2,12 pT3 ),40 cases received second radical reeection of the liver bed with lymph dissection; the remaining 5 cases received palliative operation.Amongst 45 patients lymph metastasis (4 pT2,6 pT3 ) was found in 10 cases,liver metastasis ( 2 pT2,1 pT3 ) in 3,parietal seeding in 1 ( pT3 ) and distant metastasis ( pT2 ) in one.The 5 patients receiving palliative operation died in 3 ~ 8 months and 40 patients receiving the radical operation achieved long-term survival ( 40.4 ± 2.7 months) after the operation.The effect of second operation which was done within 4 weeks after the first cholecystectomy was better than that of the operation done beyond 4 weeks ( survival time 37.1 ± 2.2 vs 22.4 ± 5.8months).Conclusions Radical resection for unsuspected gallbladder carcinoma discovered after the initial cholecystectomy helps improve prognosis and prolong patients survival time.