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.

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.

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 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 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 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.

OBJECTIVETo investigate the effects of Pyrroloquinoline quinine (PQQ) on hydrogen peroxide-induced apoptosis of Schwann cells (SCs) and its mechanism.

METHODSSCs were isolated and cultured in vitro, and identified by S-100 immunofluorescence staining. The cultured SCs were divided into control group, hydrogen peroxide-treated group, hydrogen peroxide and PQQ treated groups. The intracellular superoxide dismutase (SOD) and malondialdehyde (MDA) content was detected; the apoptotic rate of SCs induced by hydrogen peroxide was determined by flow cytometry assay. The Hoechst33342 staining was used to detect the nuclear fragmentation and apoptotic nuclear condensation of SCs; the Rhodamine123 staining was used to detect the changes of mitochondrial membrane potential in SCs, the Western blot analysis was used to detect the expression of Bcl-2 in hydrogen peroxide induced SCs.

RESULTSThe SOD activity was significantly decreased and MDA level was increased in H2O2 induced SCs (P < 0.05), after addition of PQQ, the SOD content increased and MDA content decreased (P < 0.05). Flow cytometry results showed that the early apoptotic rate was 58.8% in H2O2 induced SCs, which has significant difference compared with the control group (P < 0.05), after addition of 10, 50, 100 nmol/L PQQ, the apoptotic rates were reduced to 33.7%, 18.7%, 3.9% respectively, showing significantly different with injured group (P < 0.05). Hoechst 33342 staining showed that H2O2 induced SCs had typical morphological characteristics, such as uptake of nuclear chromatin, nuclear shrinkage, nuclear fragmentation phenomenon. The proportion of apoptotic cells after PQQ treatment reduced. Rhodamine staining results showed that the H2O2 induced mitochondrial membrane potential reduction in SCs, which was reversed by addition of PQQ. Western blot analysis showed that the expression of Bcl-2 was decreased in H2O2 induced SCs, while it increased significantly after addition of PQQ (P < 0.05).

CONCLUSIONPQQ has a protective effect on oxidative stress-induced apoptosis of SCs.

Apoptosis ; drug effects ; Benzimidazoles ; Cell Nucleus ; drug effects ; DNA Fragmentation ; Fluorescent Dyes ; Humans ; Hydrogen Peroxide ; pharmacology ; Malondialdehyde ; metabolism ; Oxidants ; pharmacology ; Oxidative Stress ; Pyrroles ; pharmacology ; Quinine ; pharmacology ; Quinolines ; pharmacology ; Schwann Cells ; cytology ; drug effects ; Superoxide Dismutase ; metabolism

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 investigate the risk factors of gallbladder carcinoma,so as to provide theoretical base for the prevention of gallbladder carcinoma.Methods The clinical data of 153 patients with gallbladder carcinoma (gallbladder carcinoma group) who were admitted to the Peking Union Medical College Hospital from January 2000 to December 2010 were retrospectively analyzed. A total of 300 patients with cholecystolithiasis (cholecystolithiasis group) and 300 patients without gallbladder carcinoma or cholecystolithiasis (control group)were collected and matched at the ratio of 1∶2 to conduct the controlled study.Data were statistically analyzed by the Chi-square test and conditional Logistric regression.Results Univariate analysis showed significant difference in age,history of cholecystolithiasis,postmenopausal age,accumulated menstrual period,giving birth or not and number of birth between gallbladder carcinoma group and control group ( x2 =58.22,180.14,9.59,24.30,18.66,15.17,P ＜0.05).Age,history of cholecystolithiasis,accumulated menstrual period and number of birth were the independent risk factors of gallbladder carcinoma (x2 =55.76,180.95,24.30,8.54,P ＜ 0.05).The risk of having gallbladder carcinoma in patients who had a history of cholecystolithiasis was 34 times higher than those who did not have the history of cholecystolithiasis (OR =34.22).Late postmenopausal age (51 -55 years old),longer accumulated menstrual period ( ≥30 years),and the number of birth ( 3 times) were associated with higher risk of gallbladder carcinoma (OR =3.96,9.68,3.51 ). Age,course of cholecystolithiasis and accumulated menstrual period and number of birth were the risk factors of gallbladder carcinoma when comparing patients who have history of cholecystolithiasis in the gallbladder carcinoma group with those in the cholecystolithiasis group (x2 =70.66,16.66,11.59,4.69,P ＜ 0.05 ).Age,course of cholecystolithiasis and accumulated menstrual period were the independent risk factors of gallbladder carcinoma ( x2 =64.29,8.82,5.58,P ＜ 0.05).The risk of gallbladder carcinoma increased as the increase of age and course of cholecystolithiasis. The accumulated menstrual period ≥ 30 years was also a risk factor of gallbladder carcinoma. Conclusions Age,history of cholecystolithiasis,course of cholecystolithiasis,accumulated menstrual period and number of birth may be the risk factors of gallbladder carcinoma.For patients with age above 60 years and course of cholecystolithiasis above 3 years,cholecystectomy should be conducted to reduce the incidence of gallbladder carcinoma,and great importance should be attached to female patients with indications mentioned above.

Objective To summarize the clinical and pathological characteristics of primary gallbladder carcinoma, analyze factors such as surgical procedures, tumor stages that associated with prognosis, and standardize the diagnosis and treatment strategy for primary gallbladder carcinoma.Methods From January 1986 to October 2009, 197 patients of primary gallbladder carcinoma were treated in Peking Union Medical College Hospital (PUMCH). A retrospective study was performed basing on clinical data of these patients, statistical analysis carried out using SPSS version 13.0, Kaplan-Meier estimate employed for the survival analysis and Log-rank test for the group comparisons. Results One hundred and ninety-seven patients were enrolled (73 male and 124 female) with the mean age of 64.4±1.1years. Abdominal pain (77.3%) , obstructive jaundice (33.6%) and fever (19.5%) were the main symptoms of primary gallbladder carcinoma, with accompanying cholecystolithiasis in 99 cases. B-mode ultrasonic examination and CT scan were important for preoperative diagnosis. Nevin stages and surgical modalities were independent prognosis factors. For stage Ⅰ and Ⅱ patients the survival terms were not different between those receiving radical cholecystectomy and simple cholecystectomy. However, for stage Ⅲ, Ⅳ and Ⅴ patients the survival terms were of statistically different between those in radical cholecystectomy group and simple cholecystectomy group. Conclusions For stage Ⅰ and Ⅱ patients, simple cholecystectomy is a good surgical procedure. For those at more advanced stages, radical cholecystectomy is the choice of therapy, while simple cholecystectomy also improves the prognosis compared with laparotomy only.