Objective Chromatography fingerprint of Radix Codonopsis of different age from Shanxi province was studied to provide the reference for the science appraisal of intrinsic quality of Radix codonopsis. Method A RP-HPLC method was applied on GraceSmart-RP18 (250 mm?4.6 mm, 5 ?m) column with acetonitrile-0.1% acetic acid gradient elution as mobile phase, and the flow-rate was 0.6 mL/min. The detection wavelength was at 268 nm and the column temperature was at 30 ℃. Result Chromatography fingerprint of Radix Codonopsis can demonstrate obviously the difference and the similarity of Radix Codonopsis of different age. The RSD were lower than 3% in the precision, stability and the repetitiveness trial, and the codonopsis pilosula alkyne glucoside can be used as the reference to identify the active composition of Radix Codonopsis. Conclusion The method was simple, reproducible and reliable. The integrity of fingerprint can be used to supply the reference for the quality control of Radix Codonopsis from Shanxi provice.

Object To study IR absorption spectra of the extracts from chicken bile possessed excellent anti inflammatory and anticancer activity so as to develop this valuable resource.Methods Bile samples from chickens and various animals were dried in the dark and subjected to IR analysis respectively. Results By comparison, significant difference was found between IR spectra of chicken bile and other animals' bile, but the IR spectra of various chicken bile showed very good consistency. Conclusion The IR spectra of chicken bile is independent of raising places, species, feeding fashion, sampling season and age of sampled chicken. It was suggested that the bile of various chicken contained same chemical composition and this result was confirmed by UV and TLC analysis.

Objective To observe the changes of lipoprotein‐associated phospholipase A2(Lp‐PLA2) in patients with athero‐thrombosis acute ischemic stroke and the correlation of Lp‐PLA2 with cerebra infarction volume ,neurologic impairment and early prognosis .Methods A total of 104 patients with atherothrombosis acute ischemic stroke and 100 healthy people(controls) were collected .The levels of Lp‐PLA2 were detected by immunoturbidimetry .The cerebral infarction volume was checked by Cranial MRI or CT .The neurological impairment degree was assessed by National Institute of Health Stroke Scale (NIHSS) score .The early prognosis was assessed by Barthel index .The changes of serum Lp‐PLA2 levels in patients with different infarct volumes and neurologic impairment were compared ,the influence of early prognosis were analysised .Results The levels of serum Lp‐PLA2 in the patients with atherothrombosis ischemic stroke were significantly higher than those in control group (P<0 .05) ,and signifi‐cantly correlated with the levels of serum LDLC (r=0 .859 ,P<0 .05) .The levels of serum Lp‐PLA2 were significantly correlated with the increasing of cerebral infarction volume and cerebral neurological impairments (r=0 .531 ,P<0 .05 ;r=0 .623 ,P<0 .05) . The patients with higher level of Lp‐PLA2 has poor prognosis(P<0 .05) .Conclusion The level of Lp‐PLA2 was significantly higher in patients with atherothrombosis ischemic stroke and may reflect the severity and early prognosis in patients with athero‐thrombosis acute ischemic stroke .

OBJECTIVETo study the therapeutic T cell vaccine for the treatment of chronic hepatitis B by improving the cellular immunization of HBsAg vaccine with the coexpression of the preS1 (1-42) and the Core (1-144) antigen of HBV in E. coli.

METHODSThe genes of HBcAg (1-144) and preS1 (1-42) were amplified and fused by PCR. This fused gene was inserted in the prokaryotic expression vector pET-11d and expressed in E. coli.

RESULTSIt was showed by SDS-PAGE that the protein molecular weight of the coexpression product was about 20 kD, 20% of all bacteria protein. The monoclonal antibodies against core and preS1 antibody could react with this fused protein by Western-blot technique respectively. The fused gene was verified by sequencing. Under the immune electron microscopy, this fused protein is typical particle of HBcAg but in an aggregated form.

CONCLUSIONThe results might aid for studying T cell immunotherapeutic vaccine for chronic hepatitis B.

DNA Primers ; Escherichia coli ; metabolism ; Gene Expression ; Hepatitis B Core Antigens ; biosynthesis ; genetics ; Hepatitis B Surface Antigens ; biosynthesis ; genetics ; Molecular Weight ; Polymerase Chain Reaction ; Protein Precursors ; biosynthesis ; genetics ; Recombinant Fusion Proteins ; biosynthesis ; chemistry ; genetics

Objective To explore the value of prenatal ultrasound in diagnosis of omphalocele-exstrophy-imperforate anusspinal defects (OEIS) in first trimester.Methods Prenatal ultrasonic characteristics of 10 fetuses with OEIS complex in first trimester were retrospectively analyzed and compared with autopsy results.Results Cystic bulging in the lower anterior abdominal wall was observed in all 10 fetuses.Spinal scoliosis dysplasia was found in 10 fetuses,with myelomeningocele in 3 fetuses.No normal bladder was visualized in 8 fetuses.Thickened nuchal translucency was noticed in 5 fetuses,among which neck lymphatic hydrocele was found in 1 fetus.The bilateral clubbed feet and left lower mutilation was observed in 1 fetus,respectively.All 10 OEIS complex fetuses were found accompanied with short umbilical cord,while single umbilical artery and umbilical cord cyst were found in 4 and 1 fetus,respectively.Autopsy showed abdominal wall defects with exstrophy in 10 fetuses.However,no complete cystic bulging was found.Besides,autopsy also showed pubic symphysis separation and bladder exstrophy in 10 fetuses without obvious genitalia nor anus.Conclusion Cystic bulging in the lower anterior abdominal wall is the most common prenatal ultrasonic characteristic of OEIS complex in first trimester.

Digital reform serves as powerful driver for high-quality development of hospitals. Taking the problems existing in the decision-making mechanism of major issues as a breakthrough, a tertiary hospital used digital thinking to optimize the decision-making mechanism. The hospital took such means as optimizing the rules of procedure, strengthening the pre-decision assessment, clarifying the principle of " two initiatives" , improving the " No.1 issue" system, strengthening the linkage between the Party committee and meeting the president′s office meeting, and standardizing the supervision and implementation. By such means, the hospital successfully built a smart, efficient, coordinated, and closed-loop operation and management system, desirably strengthening the leadership and core role of the Party committee, enhancing the president′s overall management of business work, as well as improving the decision completion rate and feedback rate.

In this study, we attempted to establish a culture system for in vitro spermatogenesis from spermatogonial stem cells (SSCs) of Bama mini-pig. Dissociated testicular cells from 1-month-old pigs were co-cultured to mimic in vivo spermatogenesis. The testicular cells were seeded in minimum essential medium alpha (α-MEM) supplemented with Knockout serum replacement (KSR). Three-dimensional colonies formed after 10 days of culture. The colonies showed positive staining for SSC-associated markers such as UCHL1, PLZF, THY1, OCT4, Dolichos biflorus agglutinin, and alkaline phosphatase. Induction of SSCs was performed in α-MEM + KSR supplemented with retinoic acid, bone morphogenetic protein 4, activin A, follicle-stimulating hormone, or testosterone. The results showed that STRA8, DMC1, PRM1, and TNP1 were upregulated significantly in the colonies after induction compared to that in testis from 1-month-old pigs, while expression levels of those genes were significantly low compared to those in 2-month-old testis. However, upregulation of ACROSIN was not significant. Replacement of α-MEM and KSR with Iscove's modified Dulbecco's medium and fetal bovine serum did not upregulate expression of these genes significantly. These results indicate that SSCs of Bama mini-pig could undergo differentiation and develop to a post-meiotic stage in α-MEM supplemented with KSR and induction factors.
Acrosin ; Activins ; Alkaline Phosphatase ; Bone Morphogenetic Protein 4 ; Dolichos ; Follicle Stimulating Hormone ; Humans ; In Vitro Techniques ; Infant ; Infant, Newborn ; Spermatogenesis ; Stem Cells ; Swine ; Testis ; Testosterone ; Tretinoin ; Up-Regulation