AIM: To investigate the preliminary clinical observation of excimer laser phototherapeutic keratectomy ( PTK ) assisted by anterior segment optical coherence tomography ( OCT ) in the treatment of non II type granular corneal dystrophy.
METHODS: A retrospective case series were studied. Totally 8 patients ( 12 eyes ) who were diagnosed as granular corneal dystrophy underwent PTK from April 2011 to January 2013 in our hospital. All patients were excluded from the II type granular corneal dystrophy ( Avellino corneal dystrophy ) by the Avellino corneal dystrophy rapid diagnostic kit and underwent preoperative anterior segment OCT examination, so as to determine the lesion morphology and depth, and used to guide the setting of PTK parameters. They were followed up for the complications after operation, postoperative recurrence, the recovery of visual acuity.
RESULTS: All patients were followed up for 6-12mo, average 9mo after operation. All patients' best corrected visual acuity were significantly improved, superficial corneal opacity lesions were effectively removed, and the corneal opacity recurrence or serious Haze were not found during the follow-up period after operation.
CONCLUSION: In patients with non type II granular corneal dystrophy, PTK assisted by anterior segment OCT can be accurate, effective removal of corneal lesions, obtain good effect after operation.

AIM: To observe the clinical effect of amniotic membrane transplantation and penetrating keratoplasty in the treatment of atheromatous corneal ulcer.
METHODS: Thirteen patients ( 13 eyes ) diagnosed atheromatous corneal ulcer from February 2009 to May 2014 in our hospital were retrospectively analyzed. Surgical treatment including amniotic membrane transplantation and penetrating keratoplasty were used to deal the patients with no effects of drugs. All patients were followed up for 4mo to 2a ( mean 8mo ) after surgery. Visual acuity, healing and recipient of ulcer were examined.
RESULTS:There patients were treated conservatively with corneal ulcer slowly healing, healing time was 14~35 ( 21±12. 1 ) d. Seven cases were treated with amniotic membrane transplantation, 2 cases were treated with penetrating keratoplasty, 1 case of corneal ulcer perforation and lost light perception received enucleation of eyeball. Corneal ulcer were cured in patients performed amniotic membrane transplantation and penetrating keratoplasty. All patients had no recurrence during the follow-up period.
CONCLUSION:Atheromatous corneal ulcer is difficult to be cured by conservative treatment. Most patients need operation treatment. Amniotic membrane transplantation and penetrating keratoplasty can be performed to deal with atheromatous corneal ulcer and abtain satisfactory effect. But amniotic membrane transplantation is relatively simple and easy, and it is suitable for promotion in primary hospitals.

Objective To investigate the correlation between atherosclerotic renal artery stenosis and hypertension.Methods One hundred and seventy-nine patients underwent renal artery angiography after coronary artery angiography. Results Among the 179 patients, 56.4% patients were detected as renal artery normal, 24% as renal artery disease, and 19.6% as renal artery stenosis. Compared with hypertensive patients with normal renal artery, ARAS patients had higher systolic blood pressure (148?23 mm?Hg vs 136?18 mm?Hg, P

OBJECTIVE:To provide reference for rational use of drugs in hospital under the condition of the separation of drug and medical care. METHODS:The volumes of business,income from drug and income condition of medical staff were compared before and after implementation of separation of drug and medical care. The chance for pharmaceutical work under the condition of the separation of drug and medical care were analyzed to put forward advice for improvement of drug use in medical institutions. RESULTS & CONCLUSION:After conducting Wuhu model in 8 medical institutions,some achievement and experience have been obtained. It should be propelled to implement effective administration for rational use of drugs to resolve the problems on over expensive medical service.

Objective To investigate whether lamivudine antiviral treatment after radical surgery can prolong disease-free survival of patients with hepatitis B virus-related liver cancer.Methods A total of 120 patients with hepatitis B virus-related liver cancer who underwent conventional radical surgery in Dongfeng Hospital Affiliated to Hubei Medical College from March 2014 to March 2016 were enrolled,and among these patients,60 were given conventional treatment (group A) and 60 were given lamivudine antiviral treatment (group B).ELISA was used to measure serum HBV DNA level.The t-test was used for comparison of continuous data between groups,the chi-square test was used for comparison of categorical data between groups,the Kaplan-Meier method was used to compare disease-free survival rate and recurrence rate between groups,and the Spearman method was used to investigate the correlation between serum HBV DNA level and survival time.Results According to the results of the 3-year follow-up,71 patients (59.17％) died (group A:46 patients died of tumor and 4 died of hepatic encephalopathy;group B:20 died of tumor and 1 died of hepatic encephalopathy).Compared with group A,group B had significantly lower recurrence rate (48.33％ vs 90.00％,x2 =16.98,P ＜0.001) and mortality rate within 3 years (35.00％ vs 83.33％,x2 =10.34,P ＜ 0.001).Group B had significantly higher mean disease-free survival time and 1-,2-,and 3-year dis-ease-free survival rates than group A(t =9.82,x2 =7.87,11.43,and 7.98,all P ＜ 0.001).After surgery,group B had a significantly lower serum HBV DNA load than group A [(0.008 1 ±0.003 2) × 105 copies/ml vs (0.014 3 ±0.008 9) × 105 copies/ml,t =18.54,P ＜ 0.001].In group A,there were significant differences in 1-,2-,and 3-year disease-free survival rates between patients with serum HBV DNA load ≥ 1.0 × 105 copies/ml and those with serum HBV DNA load ＜ 1.0 × 105 copies/ml (x2 =8.57,P ＜ 0.05),and further analysis showed that there were significant differences in 1-,2-,and 3-year disease-free survival rates (x2 =4.36,5.36,and 9.53,P ＜ 0.05);in group B,there were no significant differences in 1-,2-,and 3-year disease-free survival rates between these two groups of patients (P ＞ 0.05).Serum HBV DNA expression was positively correlated with patients' survival time (r =0.67,P ＜ 0.001).Conclusion Lamivudine antiviral therapy after radical surgery can effectively reduce serum HBV DNA level,and helps to prolong the disease-free survival time of patients with hepatitis B virus-related liver cancer.

Objective To study the intracellular calcium ([Ca2+ ]i) in myocardial cell of obesity rats induced by high-fat diet. Methods Male Sprague-Dawley (SD) rats were divided into obesity resistant (OR, n=15), normal (Nor, n=15) and obesity prone (OP, n=15) group after fed with high-fat diet for 10 weeks. Their body fat and serum lipids were measured. Myocardial cells were isolated with Langendorff perfusion and [Ca2+]i was measured with calcium indicator Fluo-3/AM and laser scanning confocal microscope after KCl depolarization and caffeine- induced. Results Compared with those in Nor and OR rats, the epididymal fat, perirenal fat, omental fat and body fat increased in OP rats (P<0.05), as well as the the level of total cholesterol, triglyceride and low density lipoprotein (P<0.05); the vary of [Ca2+]i elevation and restoration were lower (P<0.05). Conclusion The vary of [Ca2+ ]i elevation decreases in OP rats after KCl depolarization and caffeine-induced, that may associated with arrhythmia in obesity rats.

OBJECTIVEThis study aims to test the accuracy and precision of iWitness photogrammetry for measuring the facial tissues of mannequin head.

METHODSUnder ideal circumstances, the 3D landmark coordinates were repeatedly obtained from a mannequin head using iWitness photogrammetric system with different parameters, to examine the precision of this system. The differences between the 3D data and their true distance values of mannequin head were computed.

RESULTSOperator error of 3D system in non-zoom and zoom status were 0.20 mm and 0.09 mm, and the difference was significant (P 0.05). Image captured error of 3D system was 0.283 mm, and there was no significant difference compared with the same group of images (P>0.05). Error of 3D systen with recalibration was 0.251 mm, and the difference was not statistically significant compared with image captured error (P>0.05). Good congruence was observed between means derived from the 3D photos and direct anthropometry, with difference ranging from -0.4 mm to +0.4 mm.

CONCLUSIONThis study provides further evidence of the high reliability of iWitness photogrammetry for several craniofacial measurements, including landmarks and inter-landmark distances. The evaluated system can be recommended for the evaluation and documentation of the facial surface.

Objective To study the effects of carboxymethylated chitosan (CMCS) to nitric oxide (NO)-induced apoptosis on rat chondrocytes,and explore p38MAPK signal transduction pathway in the process and its mechanism.Methods The rat articular cartilage cells were cultured in vitro,collagen type-2 (collagen-2) immunohistochemical staining was used to identify the cartilage cells.The model of chondrocyte apoptosis was built by different concentrations of sodium nitroprusside (SNP) induction.The cells were divided into the control group,the SNP treated group SNP+CMCS treated group,and the SNP+p38 MAPK inhibitor SB203580 treated group.The apoptotic rate of chondrocytes was calculated by FCM,apoptotic nuclei was identified by Hoechst33342 stain,the mitochondrial membrane potential changes was detected by Rhodamine123 (Rho123) stain,the expression of p38 and p-p38 were detected by Western blotting analysis.Results 1-3 mmol/L SNP could induce chondrocyte apoptosis,the apoptotic rate was increased with the SNP increasing,the most obvious apoptosis was occurred in 3 mmol/L SNP treated chondrocytes,which was 69.8％ (P＜0.05).SNP could increase the nuclear fragmentation of chondrocytes,the cells with nuclear fragmentation was significantly higher than that in the control group.SNP could reduce mitochondrial membrane potential in chondrocytes,which decreased significantly compared with the control group.SNP could increase the p-p38 expression in chondrocytes,which was 4.3 times compared to the control group.CMCS of different concentrations could reduce the apoptotic rate of SNP-induced chondrocytes,which was 51.0％,29.9％ and 15.2％,which was decreased significantly (P＜0.05) when compared with 3 mmol/L SNP induced group,CMCS decreased the cells number of SNP-induced nuclear fragmentation.CMCS increased the mitochondrial membrane potential in SNP-induced chondrocytes.CMCS reduced the expression levels of p-p38 in SNP-induced chondrocytes.Conclusion CMCS has protective effect on SNP-induced apoptosis of chondrocytes.This process is completed by inhibiting the activity of p38 MAPK signal pathway.

Aim To produce poly (lactic-co-glycolic acid) (PLGA) microspheres, containing a staphylokinase variant (K35R, DGR) with reduced immunogenecity and antiplatclet aggregation activities,which allowed the preservation of protein stability during both particle processing and drug release.Methods DGR-loaded microspheres were fabricated using a double emulsion-solvent evaporation technique. The effects of preparative parameters, such as stirring rate, polymer concentration, and the excipients of both internal and external aqueous phase (W2 ), on DGR encapsulation efficiency and microsphere characteristics were investigated. In vitro and in vivo release of DGR were conducted and the cause for instability of DGR during release was also investigated. Results Moderate ultrasonic treatment of aqueous DGR/dichloromethane mixtures caused approximately. Eighty four per cent DGR denaturation.However, the activity recovery of DGR almost amounted to 100% when 2% polyvinyl alcohol (PVA) was added into the aqueous phase. It was found that NaCl in the external water phase significantly increased DGR encapsulation efficiency. Furthermore, NaCl in the external water phase played a role in determining size and surface morphology of microsphere. In vitro release test showed a burst release of DGR from microspheres, followed by sustained release of 50% total activity over 15 days. In vivo experiments showed that DGR released from microspheres sustained 5 days. Denaturation of DGR within microspheres might be resulted from acidic microclimate. Conclusion The stability of DGR was effectively protected during microencapsulation and a relatively high encapsulation efficiency of DGR was obtained. PLGA microspheres could be an effective carrier for DGR.

Objective To summarize the clinical and pathological characteristics of incidental gallbladder carcinoma,analyze the factors such as surgical procedures,tumor stages that associated with prognosis,and standardize the diagnosis and treatment strategy of incidental gallbladder carcinoma. Methods Between January 1991 and October 2009,27 incidental gallbladder carcinoma patients were treated in Peking Union Medical College Hospital (PUMCH).A retrospective study was performed based on the clinical data of these patients to evaluate the methods of diagnosis,curative treatment and prognosis. Results Twenty-seven patients were collected (8 male and 19 female) with the mean age of (68.3 ± 1.9)years.Abdominal pain,obstructive jaundice and fever were the main symptoms of incidental gallbladder carcinoma.All the 27 cases underwent open cholecystectomy based on preoperative tentative diagnosis of benign disease,and carcinoma of gallbladder was confirmed by postoperative pathology.In this group(9 lowdifferentiation,9 moderate-differentiation,4 high-differentiation and 5-carcinogenesis from adenoma).Two cases were on the stage of Nevin Ⅰ,5 on Nevin Ⅱ,8 on Nevin Ⅲ,5 on Nevin Ⅳ and 7 on Nevin Ⅴ.The survival terms were of statistic significance between the radical cholecystectomy groups and simple cholecystectomy groups(x2 =4.450,P=0.035); The prognosis of patients on stages Ⅰ、Ⅱ are better than those who are on stages Ⅲ、Ⅳ、Ⅴ (x2 = 6.825,P = 0.014). Conclusion The clinical manifestations of incidental gallbladder carcinoma are diverse,which usually lead to misdiagnosis.Frozen section examination during operation is key to diagnose incidental gallbladder carcinoma.Surgical operation is the first choice of therapy,offering much better prognosis than those received simple cholecystectomy.