Velpatasvir is a new generation of NS5A inhibitors, and combined with marketed sofosbuvir, compound tablets Epclusa was obtained and approved by FDA in June, 2016, which is used for the treatment of adult patients infected with chronic hepatitis C vi-rus ( HCV) with all genotypes. The mechanism of action, pharmacodynamics, pharmacokinetics, clinical trials and safety of Epclusa were reviewed in this article.

Objective To study the efficacy of intravitreous injection (IVI) or sub-Tenaninfusion (STi) of triamcinolone acetonide (TA) for diabetic macular oedema. Design Retrospective cases series. Participants 37 cases (37 eyes) with diabetic macular oedema confirmed by fundus fluorescence angiography (FFA) and optical coherence tomography (OCT). Methods Patients were received 4mg TA by single intravitreous injection or 40mg TA by three times sub-Tenoninfusion at 0d, 2w, 4w. The best corrected visual acuity, fundus examination, intraocular pressure, fundus fluorescence angiography were further analyzed, and the retinal thickness of macular fovea were measured by OCT. Main Outcome Measures The visual acuity, thickness of retinal macular fovea, ocular pressure was measured. Results 32 cases (32 eyes) completed the 24 week followed-up. In group IVI, the visual acuity before and after injection was 0.10±0. 03, 0.24±0.06(F=15.459, P=0.000) respectively; and retinal thickness of macular fovea is(460.73±46.33)μm,(394.53±41.43)μm (F=25. 282, P=0.0000) respectively. But in group STi, the visual acuity before and after injection is 0.11±0.04, 0.18±0.07(F=6.989, P=0.000) accordingly; and retinal thickness of maculur fovea is (454.76±56.28)μm,(424.94±42.69)μm (F=5.145, P=0.000) respectively. There was obvious statistical significance between two methods at same time point(all P<0.05). The serious, irreversible complications had not been found in all patients during follow-up. Conclusion Triamcinolone acetonide by single intravitreous injection or repeatedly sub-Tenoninfasion are good ways to relieve diabetic macular oederna, IVA-TA is more effective, and STi-TA safer. (Ophthaimol CHN, 2009, 18: 246-250)

Objective To investigate the characteristic and the value of renal solid lesions' boundary at contrast-enhanced ultrasonography(CEUS). Methods The study included 225 patients (124 males, 101 females) with renal 239 solid lesions [133 renal cell carcinoma(RCC) and 106 benign lesions]. The enhanced mode of lesion boundary at CEUS was observed. The histopathologic pseudocapsule of RCCs was analysed.Results Enhanced modes of all lesions' boundary at CEUS were classified as: type Ⅰ , iso-enhanced boundry in whole phase, 82.85 % (198 of 239) ;type Ⅱ , a perilesional annular highly-enhanced signal at early phase,4.18% (10 of 239);type Ⅲ ,perilesional annular highly-enhanced signal in whole phase,9.62% (23 of 239) ;type Ⅳ, perilesional annular highly-enhanced signal in midium and late phase, 1.25 % (3 of 239) ;type Ⅴ ,iso-enhanced boundry in the mdium and late phase with no enhancment at early phase, 2. 09% (5 of 239). The distribution of types Ⅰ , Ⅱ , Ⅲ between groups were significant different( P=0.000, 0.046,0. 000), the type Ⅳ and Ⅴ was not ( P = 0.256,0.068). The distribution of perilesional annular highlyenhanced signal between benign and RCC groups was statistically different (x2=29. 681, P=0.000).Regared it as a diagnostic criteria of RCC,the sensitivity was 26.32% (35/133) ,the specificity was 99.06%(105/106) ,the positive predictive value was 97.22% (35/36),the negative predictive value was 51.72%(105/203) ,and the accuracy was 58.58% (140/239). The perilesional annular highly-enhanced signal was not correlated with the pseudocapsule in pathology ( P = 1. 000). Conclusions The boundary enhancement mode of renal solid lesions at CEUS was divided into five types. The perilesional annular highly-enhanced signal was important in diagnosis of RCC,which was not correlated with the pseudocapsule in pathology.

Objective To discuss the operative technique and curative effect of minor-incision cholecystectomy.Methods The clinical data of 672 patients with application of mini-cholecystectomy from June 2001 to June 2009 were analyzed.Perioperative management and operative technique were emphasized.Results Six hundred and fifty-two cases (97.0%) were cured with mini-cholecystectomy and 20 cases (3.0%) with incision lengthened.Operation time was (40.0?10.0) min.One case with hemorrhoea during operation was cured by interventional embolotherapy.Bile duct injury was found in 1 case during operation,and adopted suture with T tube.There were no infection of incisional wound or death in this study.Conclusion On the basis of skillful conventional cholecystectomy,by controlling indication and improving operative technique,it is an economical and safe way to perform minor-incision cholecystectomy.

Objective To establish the method of the GC fingerprints for Ligusticum chuanxiong essential oil and its quality control.Methods The temperature at both feed inlet and detector was 250℃,the carrier gas was nitrogen,and the flow rate was 2 mL/min.GC of the essential oil in ten batches of L.chuanxiong was analyzed by adopting temprature programmer and the fingerprint peaks were identified by GC-MS.Results To set up the GC fingerprints for L.chuanxiong essential oil,13 peaks were marked out altogether and the GC fingerprints were analyzed by similarity analysis.Conclusion The method is of high degree of presion,reproducibility,and stability.The resolving of each component in the essential oil is good.The established fingerprints could be used as one of the quality control index for L.chuanxiong essential oil.

BACKGROUND: Previous studies have confirmed that rabbit bone marrow mesenchymal stem cells (BMSCs) can differentiate into osteoblasts under osteogenic induction in vitro, stably express the specific phenotype of osteoblasts and have osteogenic ability. Calf cortical bone scaffold with partial cancellous bone has good biocompatibility and degradability, which can be used as a carrier material of bone marrow mesenchymal stem cells. OBJECTIVE: To combine rabbit BMSCs with calf bone composite according to the basic principles of bone tissue engineering and to observe the osteogenesis in the New Zealand white rabbits after implantation of BMSCs/calf bone composite into the ilium, thereby providing a direct evidence for preliminary clinical application of tissue-engineered bone products.METHODS: BMSCs/calf cortical bone scaffold with partial cancellous bone (tissue-engineered bone group), simple calf heterogeneous bone (heterogeneous bone group) or autologous iliac bone (autologous iliac bone group) was randomly implanted into the rabbit ilium. The changes of implant surface and tissue reactions around the implant were observed.X-ray examination was performed to observe osteogenic changes at 4, 8, 12, 24 weeks after implantation. Immunohistochemistry staining was used to observe the expression of bone morphogenetic protein 2.RESULTS AND CONCLUSION: After heterogeneous bone implantation, the wound healed well, and there were no systemic or local inflammation and toxicity reactions in all groups. The X-ray results showed that at postoperative 24 weeks, the implant was basically fused with the host bone in the tissue-engineered bone group, but the fusion was unsatisfactory in the heterogeneous bone group. The process of ossifications from cartilages was observed in all groups by hematoxylin-eosin staining, and bone morphogenetic protein 2 was positive for immunohistochemical staining. Findings from in vivo experiments indicate that rabbit BMSCs seeded onto the calf cortical bone scaffold with partial cancellous bone could construct tissue-engineered bone by osteoinductation in vitro in the rabbits.

Objective Proximal humerus fracture is the most common upper-arm osteoporotic fracture in elderly patients and the result of treatment directly affects the physiological function of the shoulder .This article discusses the clinical effect of the locking proximal humeral plate ( LPHP) combined with anti-osteoporosis drugs in the treatment of osteoporotic comminuted proximal humerus fractures in elderly patients . Methods This study included of 47 elderly osteoporotic patients with comminuted proximal humerus fractures treated from April 2009 to March 2012 and with complete follow-up data.According to the Neer classification , the patients were divided into groups A (LPHP treatment, n=23, including 13 cases of three-part fractures and 10 cases of four-part fractures) and B (LPHP+anti-osteoporosis drugs, n=24, including 13 cases of three-part fractures and 11 cases of four-part fractures). Results All the patients were followed up for 14 to 38 (mean 23.6) months.The postoperative healing time was significantly shorter in group B than in group A ([96.57 ±2.59]d vs [115.91 ±2.73]d, P<0.05), and the excellence rate was remarkably higher in B than in A (91.7%vs 78.3%,P<0.05). Conclusion With the advantages of short healing time and high excellence rate , LPHP+anti-os-teoporosis drugs is superior to simple LPHP in the treatment of osteoporotic comminuted proximal humerus fractures in elderly patients.

Objective To develop a comprehensive integrated POCT system.Methods To meet the requirement of medical relief operation under the circumstances of field operations and Military Operations Other Than War,several dry chemical inspection instruments were selected,integrated and informatized.Then,a portable platform,being easy to deploy,undeploy,store and transport,came into being,which was gifted with the functions for regular rapid laboratory test in filed operation.Results The POCT system's net weight was about 80Kg,and the deployment/un-deployment time was 3 minutes.The tests could be finished in 5minutes.Conclusion The system has reached the goal of rapid response and on -site application,which will greatly enhance the work efficiency of clinical laboratory under the circumstances of field operations.

Objective To report the result of analysis of 72 cases of facial cutaneous sporotrichosis. Methods Seventy-two patients were included in this study. They were diagnosed as facial cutaneous sporotrichosis according to clinical mainfestations and fungal culture. Histopathological examinations were done in some atypical cases. The patients were treated with combined antifungal agents. Results The lesion forms were varied, in which lymphangitic cutaneous form accounted for 9.72% and fixed cutaneous form accounted for 90.28% respectively. Nineteen cases (26.4%) had a history of skin trauma before the cutaneous lesions. All of the patients were successfully treated with potassium iodide and/or itraconazole, terbinafine for 6-8 weeks. Conclusions The skin lesions and mycological examination are the important evidences for the diagnosis of sporotrichosis. The main form of the facial cutaneous sporotrichosis is the fixed cutaneous form. The misdiagnosis rate is 16% in primary level clinics. Potassium iodide is an effective and inexpensive medicine in the treatment of cutaneous sporotrichosis.