AIM:To observe the influence of the different bore diameter ceramic membranes on the processing parameters of Jinlida Granules(Radix et Rhizoma Salviae miltiorrhizae,Radix Sophorae flavescentis,Rhizoma Polygonati,etc.) and optimize the process of membrane filtration. METHODS: Three different membranes were tested to observe the changes in membrane flux and the content of effective components by Jinlida Granules extract. RESULTS: The 50 nm membrane had the great flux,the transfer rates of matrine and salvianolic acid were the highest;The optimum conditions: the operation differential pressure was 0.08～0.12MPa;the operation temperature was 50～60℃;the membrane surface flow rate was 3.0 m/s.When the volume of filtration solution was condensed to one tenth,adding the same volume aeionized water,and the effective components transfer rate reached 80%.Using the strong acid and strong alkali to wash it in turn,the flux can revivify above 90%. CONCLUSION: Applying the ceramic membrane to ultrafiltrate Jinlida Granule is good and useful to herb purification.

OBJECTIVE: To optimize the formative excipients for cough remedy granules. METHODS: Effects of different excipients on the formation, moisture absorption and relative critical humidity of cough remedy granules were examined, and the optimal excipients as well as formula were selected by adoption of the comprehensive scoring method. RESULTS: The optimal excipient for preparation of cough remedy granules was lactose, and the best formula comprised of 4 doses of spraying powder and 6 doses of lactose mixture. CONCLUSIONS: The cough remedy granules thus prepared is ideal: good in granularity, easy to dissolve and not liable to moisture absorption.

Objective To study the application of dynamic ultrasound countercurrent extraction technology in industrialization of Lianhua Qingwen Capsule by multi-index optimization. Methods Ultrasonic temperature and ultrasonic time were investigated by using single factor design. The three factors of dry extract yield, the active ingredient content, and fingerprints were selected as the optimization indexes to investigate the solvent consumption and extraction time between the dynamic ultrasound countercurrent extraction process and the original reflux extraction process under the fixed conditions of process parameters. Results Compared with traditional reflux extraction technology, dynamic ultrasound countercurrent extraction technology effectively reduced the alcohol consumption and saved extraction time on the basis of guarantee of the active ingredient content. Conclusion Dynamic ultrasound countercurrent extraction process, with simple and fast advantages, can be used to Lianhua Qingwen Capsule production, which can significantly reduce production costs and increase productivity.

Objective To solve the agglomeration problem in the former process, dry granulation technology was used to prepare the granules of Lianhua Qingwen Capsules. Methods Complexity and granule yield coefficient were set as inspection indexes. The optimum subsidiary material and its amount were optimized. The parameters of dry granulation technology were optimized by orthogonal test. Then, granule yield, angle of repose, and bulk density were compared with those of wet granulation technology. Results Starch was set as subsidiary material. The optimum technology is roll pressure of 12 MPa, rotation speed of 5 r/min, and feed speed of 10 r/min. The yield of granules prepared by dry granulation technology was significantly higher than that of wet granulation technology. Conclusion The dry granulation technology can effectively improve the agglomeration of the granulation process of Lianhua Qingwen Capsules, and was suitable for granulating process of Lianhua Qingwen Capsules.

OBJECTIVE:To prepare Levofloxacin and triamcinolone acetonide double-loaded ophthalmic gel. METHODS:Us-ing levofloxacin hydrochloride and triamcinolone acetonide as main components,carbopol-940P as base material,HPMC K4M as tackifier,Levofloxacin and triamcinolone acetonide double-loaded ophthalmic gel was prepared. Using dissolution time as index, the contents of carbopol-940P and HPMC K4M were determined by single factor test,and dissolution time,viscosity and the con-tents of 2 main components were also determined. RESULTS:The concentrations of carbopol-940P and HPMC K4M were 0.4%and 1.2%,separately. The dissolution time was more than 24 h and viscosity was 1 142.67 Pa·s. The content of levofloxacin hydro-chloride was 97.3% of labelled amount (RSD=0.84%,n=3),and that of triamcinolone acetonide was 92.97% of labelled amount(RSD=1.32%,n=3). CONCLUSIONS:Levofloxacin and triamcinolone acetonide double-loaded ophthalmic gel has been prepared successfully.

Objective To compare the effect of immediate implantation and delayed implantation on the surrounding tissue.Methods The clinical data of 98 cases of anterior teeth with single implant repair were analyzed retrospectively,and they were divided into study group (n =50) and control group (n =48) according to the method of implantation.The patients in the study group were implanted in the tooth socket immediately after the minimally invasive tooth extraction,and the patients in the control group were implanted after 12-16 weeks of minimally invasive extraction.All the two groups were repaired in coronal at 6 months after implantation.The success rate of implant,implant bone resorption,periodontal probing depth,gingival bleeding index,plaque index and red aesthetic score were compared between the two groups.Results The success rate was 100％ in the two groups after 12 months,the difference was not statistically significant(P ＞ 0.05).The implant surrounding bone absorption in the study group was lower than that in the control group,the differences were statistically significant (t =2.132,2.241,2.421,all P ＜ 0.05).At the end of 3 and 6 months,the depth of probing in the study group were significantly lower than those in the control group (t =2.019,2.307,all P ＜ 0.05),and the red aesthetic score in the study group was significantly higher than that in the control group,the differences were statistically significant [(7.97 ± 1.12) points vs.(6.82 ± 1.03) points,(8.65 ± 1.14) points vs.(7.42 ± 1.07) points,t =2.012,2.137,all P ＜ 0.05].The modified sulcus bleeding index and plaque index had no statistically significant differences between the two groups (all P ＞ 0.05).Conclusion The clinical effect of immediate implant restoration of anterior teeth is better than delayed implantation.

Objective To investigate the clinical features and treatment principles of inflammatory myofibroblastic tumor of the urinary bladder (IMTUB).Methods From April 2013 to October 2016,6 cases of IMTUB patients were analyzed retrospectively.All cases were presented with gross hematuria.4 cases underwent ultrasonography,of which 3 cases showed solid mass in bladder,1 case showed inflammatory change.6 cases underwent CT examination,3 cases with bladder cancer,1 case with bladder sarcoma,1 case with malignant transformation of adenoma,1 case with rich blood supply.No lymph node metastasis.Bladder occupying lesions were considered in 2 cases of MRI examination.5 cases of cystoscopy showed bladder solid mass.In 6 cases involved,2 patients received partial cystectomy,2 patients underwent transurethral resection of bladder tumor,1 patient underwent radical resection of urachal carcinoma and the other one was treated with chemotherapy.Results Immunohistochemical staining was positive in ALK (100.0％) 、Vimentin(100.0％) 、CK(100.0％) 、SMA (83.3％) 、EMA(66.7％) and Ki-67 (5％-30％),negative in S-100 and Desmin.Final pathological diagnosis was IMTUB.So far,neither recurrence nor metastasis has been detected for 6 ～ 42 months in 5 cases and the other one lost to follow-up.Conclusions IMTUB is a kind of rare benign tumor of bladder.The golden standard of diagnosis is pathological diagnosis.Surgical resection is the first choice for treatment.Recurrence and metastasis are after the surgery treatment.All patients should be followed up closely.

Bats are important reservoir animals and more than 60 viruses have been identified in bats with many of them highly pathogenic to human. In order to understand the natural background, genetic diversity of bat viruses in China and discover potential viral pathogens, Solexa sequencing based viral metagenomics focusing on bats tissues was established and to analyze the virome of bats collected from Jilin, Yunnan and Hunan province. By Solexa sequencing, 116 442 324 useful reads were obtained and assembled into 4 872 contigs, of which 8.2% (4 002/4 4872) were annotated to 36 viral families, including 19 vertebrate virus families, 6 plant virus families, 4 insect virus families and 4 phages. Further contigs analyses showed that some adenovirus, bocavirus, picobirnavirus, parvovirus contigs sequences were similar with known viruses. However, part of them shared limited identities to these viruses implying the discovery of new viruses. Moreover, PCR validation of adenovirus and bocavirus confirmed the results obtained by viral metagenomics. This study aimed to understand bat virome in China by viral metagenomics and could be helpful to establish effective surveillance on wildlife-associate zoonoses.
Adenoviridae ; genetics ; isolation & purification ; Animals ; Bunyaviridae ; genetics ; isolation & purification ; China ; Chiroptera ; virology ; Genome, Viral ; genetics ; Metagenome ; genetics ; Metagenomics ; methods ; Picornaviridae ; genetics ; isolation & purification