Cysts ; congenital ; diagnosis ; surgery ; Female ; Humans ; Infant, Newborn ; Male ; Tongue Diseases ; congenital ; diagnosis ; surgery

In order to solve the problems of erratic drug absorption and low bioavailability after oral administration for poorly-water soluble drugs due to low solubility, a series of novel pharmaceutical dosage forms as solid dispersion, liposome, microemulsion, vesicle, cyclodextrin inclusion complexes and drug nanocrystal have been developed in recent years. Among which drug nanocrystal attracts more attentions for its simpler preparation method, higher drug loading and easier manufacturing technology in the design of dosage forms suitable for different administration routes. In this paper, the nanocrystals of the poorly-water soluble drugs prepared based on bottom-up and top-down technologies were introduced. The characteristics and applications of the nanocrystal-based dosage forms as suspension, tablet and capsule were also introduced and carefully evaluated with the focus on their pharmacokinetics, pharmacodynamics and tissue targeted drug distribution after delivery by oral administration, intravenous injection and pulmonary inhalation. The advantages of drug nanocrystals in their therapeutics effects over the bulk drugs were discussed together with the inherent mechanism. Finally, the problems existing in basic research and scaled-up manufacture of drug nanocrystal as well as the possible ways of solution were listed out so as to make the nanocrystal-based preparations exert their maximum therapeutic effect after clinical application.

Anion Exchange Protein 1, Erythrocyte ; metabolism ; CD56 Antigen ; metabolism ; Desmin ; metabolism ; Desmoplastic Small Round Cell Tumor ; metabolism ; pathology ; surgery ; Diagnosis, Differential ; Humans ; Lymphoma ; metabolism ; pathology ; Male ; Middle Aged ; Rhabdomyosarcoma ; metabolism ; pathology ; Sarcoma, Ewing ; metabolism ; pathology ; Testicular Neoplasms ; metabolism ; pathology ; surgery ; Vimentin ; metabolism

Aged ; Female ; Fibroma ; pathology ; Fibroma, Ossifying ; pathology ; Gingival Neoplasms ; pathology ; Humans

Adult ; Bile Duct Neoplasms ; diagnosis ; metabolism ; pathology ; surgery ; Bile Ducts, Intrahepatic ; Carcinoma, Hepatocellular ; metabolism ; pathology ; Carcinoma, Squamous Cell ; diagnosis ; metabolism ; pathology ; surgery ; Cholangiocarcinoma ; diagnosis ; metabolism ; pathology ; surgery ; Cholecystectomy ; methods ; Diagnosis, Differential ; Hepatectomy ; methods ; Humans ; In Situ Hybridization ; Keratin-19 ; metabolism ; Keratin-7 ; metabolism ; Keratin-8 ; metabolism ; Magnetic Resonance Imaging ; Male ; RNA, Viral ; metabolism ; Tomography, X-Ray Computed

Objective To express the hemagglutinin of H7N9 in Pichia pastoris and analyze its immunogenicity. Methods The HA [1 -525 amino acids(aa)] of H7N9 [A/Hangzhou/1/2013(H7N9)] lacking the C-terminal transmembrane anchor-coding sequence was amplified by PCR and cloned into the expression vector pPICZαA.The plasmid pPICZ-HA7-S-was transformed into P.pastoris and the HA1-525 was detected by ELISA.Then the HA1-525 was precipitated by PEG20000.After immunization with the HA1-525 , the anti-HA7 antibody in mouse serum was detected by ELISA and hemagglutinin inhibition ( HI) test.Results The HA1-525 was expressed in P.pastoris after being induced with methanol. Western blotting confirmed that there were specific dispersion bands and the molecular weight of HA1-525 decreased to 58 × 103 after being digested by endo H.Anti-HA7 antibody was found in serum of HA1-525 immunized mice and the hemaggluti-nation-inhibition titers reached 1∶700 after the third doses.Conclusion This study shows the HA1-525 expressed in P.pastoris can induce the neutralizing antibody in mice.

Objective To evaluate the effectiveness of single balloon enteroscopy (SBE) in diagno-sing of suspected lesions in small intestine. Methods Data of 23 patients with suspected small intestinal disease, who underwent SBE (Olympus) between February 2009 and August 2009, were retrospectively studied. A total of 34 procedures were performed in 23 patients. The indications for the examination were suspected obscure gastrointestinal bleeding (n = 9), abdominal pain (n = 7), suspected intestinal tumor re-vealed by capsule endoscopy (n = 4), and Crohn disease (n = 3). Results The average preparation time of SBE was less than 5 minutes. The mean procedure time was 61±25 minutes and 67±28 minutes for the oral and anal routes, respectively. Examination of whole length of small intestine was achieved in 6 patients. The diagnostic rate of small-intestinal lesions was 60. 9%, and no severe complications including perforation occurred. Conclusion SBE is safe and easy to prepare and perform, which can be a useful diagnostic and therapeutic tool for suspected small bowel disease.

Objective To investigate the predictive value of rectal aberrant crypt foci(ACF)for colorectal cancer(CRC)and progressive adenomas, and to analyze its risk factors.Methods IndependentSample T test, One-Way ANOVA and Chi-square test were used to analyze the mean number and incidence of rectal ACF.Logistic regression analysis was used to assess the predictive value of rectal ACF for progressive adenomas and CRC, and to identify the independent risk factors of ACF.Results Large number of ACF, i.e.more than 5, was a significant risk factor for CRC and progressive adenomas.Age and smoking were both risk factors of ACF, while aspirin was a protective factor.Conclusion ACF of more than 5 is predictive of CRC and progressive adenomas.For prevention of CRC, great importance must be attached to risk factors of ACF.

Objective To investigate the miss rate of adenoma with colonoscopy and assess the features and risk factors for missed diagnosis.Methods Patients with colorectal adenoma received a second colonoscopy within 120 days after adenoma was detected and removed on the initial colonoscopy.The findings of two colonoscopies were reviewed and analyzed.The features of adenoma (including size, location, shape, number and pathology) , clinical characteristics of patients (including age, sex, reasons of colonoscopy, history of diverticular disease, history of abdominal or pelvic surgery and colonoscopy with sedation) and endoscopists were recorded.Miss rate and features of different types of missed adenoma were analyzed.We also assessed the effects of adenoma features, patients' characteristics and endoscopists on missed diagnosis of adenoma.Results Adenoma missed diagnosis was found in 271 patients out of 809 recruited subjects (33% ).A total of 425 adenomas were missed out of 2134 (20% ) adenomas detected by repeated colonoscopy.A large diameter was associated with a decrease in the miss rate for adenoma (P < 0.01).Conversely , sessile or flat shape (P < 0.01) , locations at sigmoid, hepatic flexure, cecum and ascending colonic ( P < 0.05) were significantly associated with a higher miss rate of adenoma, as was the number of adenomas (P <0.01).A higher adenoma missed diagnosis rate was observed in beginner colonoscopists, as compared with experienced ones (P < 0.01).Conclusion A marked miss rate of adenoma exists on colonoscopy, which is significantly associated with the size, shape, location and number of adenomas and endoscopists.

ObjectiveTo investigate the diagnostic value of transgastic peritoneoscopy for ascites of unknown aetiology.MethodsTransgastric peritoneoscopy was performed on 7 patients with ascites of unknown aetiology.Diagnosis and complications were both recorded.ResultsDiagnosis of all the 7 patients were confirmed after transgastric peritoneoscopy,among whom 6 ( 85.7％ ) were found to have tuberculosis peritonitis,and 1 ( 14.3％ ) with liver disease.All patients recovered after the operation.No intraoperative or postoperative complications occurred.ConclusionTransgastric peritoneoscopy is a valuable diagnostic method for ascites of unknown aetiology.