OBJECTIVE:To prepare Shuansaitong capsules and establish a method for its quality control.METHODS: Distillation method was applied to extract volatile oil from volatile oil-containing medical material and water decoction method was used to extract physic liquor from other medical material. Suitable quantity of excipients was added to prepare Shuansaitong capsules.Qualitative identifications of Ligusticum chuanxiong,Panax quinquefolium,Salvia miltiorrhiza,Angelica sisensis were performed by TLC,and the content of Gastrodin was determined by HPLC.RESULTS:The quality of Shuansaitong capsules was completely in conformity with the related requirements of China Pharmacopeia.The TLC spots were clear,well-separated,specific and free from interferonce of negative sample.The linear range of gastrodin was 0.1～0.5 ?g with a correlation coefficient of 0.999 5.The average recovery was 96.59% with RSD=0.47% (n=6).CONCLUSION:The preparation technology of Shuansaitong capsules is simple and the determination result was accurate,thus suitable for the preparation and quality control of Shuansaitong capsules.

Objective To prepare hybrid substrate and apply it to detect thiram with surface-enhanced Raman spectros-copy( SERS) which provides unique molecular vibration information .Methods The Au substrate was prepared by deposi-tion of gold film on the silver substrate that had a rough surface .The Au substrate was treated with amination as a linker with the silver sol before the hybrid substrate was formed .With PATP as a probe molecule ,the Raman intensity of PATP on the Au substrate and the hybrid substrate was compared ,respectively .Results and Conclusion PATP had stronger Raman intensity on hybrid substrate than on the Au , and the detection limit was 10 -9 mol/L.This method can be used for quanti-tative detection on the hybrid substrate by SERS .

Objective To evaluate 3D CT features of normal anatomy,anatomic variations and fractures of occipital squama.Methods The 3D CT features on MIP,VR images were analyzed retrospectively in 589 pediatric cases.The normal anatomy,anatomic variations and fractures of occipital squama were observed respectively,and the differential diagnostic features including the individual location,appearance and extension were analyzed.Results Four hundred and thirty-three patients (75.2％) showed normal anatomy,including 154 patients with adult occipital anatomical features,279 patients with posterior intraoccipital synchondrosis,and 37 patients with Kerckring-supraoccipital synchondrosis.When cases with recent trauma history were excluded,113 patients (19.1％) showed anatomic variants,including unpenetrating sutures and penetrating sutures.The former could be subdivided to Mendosal sutures in 23 cases,superior median fissures in 19 cases,and midline supraoccipital fissures in 4 cases,while the latter could be subdivided to the interparietal bone variations in 54 cases,wormian bones in 23 cases,and accessory bones in 7 cases.Two or more variations coexisted in 33 cases.The occipital squama fractures were shown in 34 cases (5.6％),including linear fractures in 27 cases,comminuted fractures in 3 cases,with depression fracture in one case,separation of cranial sutures in 3 cases,and other fractures associated with variants in 3 cases.The fractures were sharp,or jagged,without limitation of the occification.Conclusion There are different 3D CT features of normal anatomy,anatomic variations and fractures of occipital squama in children,which are important for making the accurate diagnosis.

Objective To explore the pathological changes of the livers from hepatic failure (HF)patients and its association with clinical disease stages.Methods Thirty-nine patients with liver failure caused by HBV infections were investigated,and none accompanied with hepatocellular carci- noma.The sections of tissue were taken from the liver after liver transplantation and stained with he- matoxylin eosin(H&E)or RT(reticular fiber)staining.The pathological features were analyzed and compared between the clinical and pathological diagnosis.Results 1.The range and the grade of the pathological changes were all well-proportioned in the whole liver but quite asymmetrical in the same spicemen.2.4 cases with clinical diagnosis of cirrhosis(active stage)were in accordance with the pathological diagnosis.Only 17 in 35cases can be pathologically diagnosed as chronic severe hepatitis (SH),while the other 18 cases were pathologically diagnosed as cirrhosis(active stage).Conclu- sion There were a great inconsistency between the clinical and pathological diagnosis.

Objective To investigate the correlations of FcεRI-βgene polymorphisms with clinical manifestation and prognosis inwheezing infants. Methods One hundred and forty-six wheezing infants were recruited and divided into two groups by FcεRI-βdetection using Fluorescent quantitative PCR: Risk genotype group (n = 41) or normal genotype group (n = 105). The genotype distributions,clinical manifestation and asthma,and morbidity were analyzed and compared between the two groups. Results FcεR1 E237G AG/GG was more serious than FcεR1 AA in wheezing infants. (χ2 = 14.202; P = 0.003). No significant differences were found in AS morbidity between the two groups after two years follow-up (χ2 = 2.25;P = 0.13). Conclusion FcεRI-βgene polymorphisms are strongly related with infantile wheezing. Th risk genotype may be the severity of asthma but may not be the major influencing factor of asthma.

Objective To analyze the feasibility and the diagnostic yield of double-balloon enteroscopy (DBE) examinations for small bowel bleeding (SBB). Methods A retrospective analysis was conducted on 52 cases with small bowel bleeding between June 2015 and July 2016,and all was treated with DBE. therapeutic outcome, complications and follow-up were compared. Results The study included 52 patients (28 males and 24 females) with an average age of (51.0 ± 17.0) years (16~82 years) and onset time (8.3 ± 4.0) days (1~14 days) . 25 using oral route and 21 using the anal route, 1 using the colon ifstula route, a combination of using oral and anal (n=4).The bleeding source was identiifed in 40 of 52 patients (76.9%), complication rate was 5.8%(3/52), and rebleeding rate was 16.7%(2/12). The endoscopic treatments included polypectomies (n=5), argon plasma coagulation (APC, n=2), surgical treatment (n=14, 26.9%), and foreign-body extraction (n=1). Patients were diagnosed with the following:tumors (n=9, 17.3%), ulcers (n=9, 17.3%), Crohn’s disease (n=7, 13.5%), polyps (n=5, 9.6%), diverticulum (n=4, 7.7%). Patients with small bowel bleeding were followed up for a mean period of (8.3±2.0) months (range 4~10 months), 2 deaths were dying from small bowel cancer. Conclusions DBE is a safe endoscopic technique for patients with small bowel bleeding and can be safely carried out even after Roux-en-Y operation. Tumors, ulcers and Crohn’s disease are very common causes of SBB. The rebleeding rate after a negative DBE is considerable, especially small bowel vascular lesions.

P-selectin, one of the membrane proteins, expresses on platelet and endothelia and interacts with P-selectin glycoprotein ligand-1 (PSGL-1) on leukocyte membrane. This interaction mediates leukocytes rolling on endothelial membrane and then induces leukocyte recruitment to the site of infection or tissue injury. In the present study, we constructed the recombinant wild type human P-selectin, its calcium-binding sites mutants and recombinant PSGL-1-globulin (PSGL-1-Rg). They expressed in Sf9 cells by using the baculovirus expression system and were purified by TalonTM metal or Protein A affinity chromatography. The results showed that the recombinant PSGL-1-Rg interacted with recombinant wild type P-selectin and two P-selectin mutants with 2 calcium-binding sites mutation respectively, but could not bind to the P-selectin mutant with all 4 calcium-binding sites mutation. Therefore, we verified the importance of P-selectin calcium-binding sites for its interaction with PSGL-1.
Binding Sites ; Calcium ; metabolism ; Humans ; Leukocytes ; metabolism ; Membrane Glycoproteins ; metabolism ; Mutation ; P-Selectin ; metabolism ; Recombinant Proteins ; metabolism

Adolescent ; Adult ; Blood Transfusion ; Child ; Child, Preschool ; Female ; Humans ; Male ; Middle Aged ; Pesticides ; poisoning ; Poisoning ; therapy ; Treatment Outcome

Taxa-4(5),11(12)-diene is the precursor for paclitaxel biosynthesis. The diterpenoid paclitaxel (marketed as Taxol), a plant secondary metabolite isolated from yew, is an effective drug widely used in the treatment of numerous cancers. However, further application of taxol has been restricted due to its low yield in plants and the difficulties in extraction. To increase the intact isoprene flux, we constructed the fusion gene plasmid pBgGGTS and individual cassette plasmid pBgGGgTS to enhance the expression levels of geranylgeranyl diphosphate synthase gene (ggpps) and a taxadiene synthase gene (ts) in Coprinopsis cinerea. These two plasmids were separately transformed into C. cinerea LT2 strain, resulting in several putative transformants. Putative transformants were determined by PCR technique, indicating that 5 out of 13 putative transformants transformed by pBgGGTS and 6 out of 13 putative transformants transformed by pBgGGgTS, respectively. Additionally, the Southern blotting analysis of these 10 transformants confirmed that both ggpps and ts gene were stably integrated into the genome of C. cinerea. Crude extracts from each of the transformants were analyzed. There is no difference in the mycelium extracts among the wild-type LT2 and two types of transformants. However, analysis of culture filtrates indicated that an additional GC peak was found at the retention time of 16.762 min which was absent in the wild type control. The mass fragmentation pattern of this peak had the same diagnostic ions with taxa-4(5),11(12)-diene. According to peak area, the amounts of taxa-4(5),11(12)-diene in each fermented broth were 44 ng/L (transformed with pBgGGgTS) and 30 ng/L (transformed with pBgGGTS), respectively. In conclusion, co-expression of the ggpps and ts gene could increase the taxadiene production in C. cinerea.
Agaricales ; metabolism ; Alkenes ; metabolism ; Diterpenes ; metabolism ; Farnesyltranstransferase ; genetics ; metabolism ; Genetic Engineering ; Isomerases ; genetics ; metabolism ; Paclitaxel ; Plasmids

Antigens ; chemistry ; Fixatives ; chemistry ; Humans ; Hydrogen-Ion Concentration ; Immunohistochemistry ; methods ; Microwaves ; Staining and Labeling ; methods