Glucocorticoids (GC) are increasingly being used to treat chronic rhinosinusitis, its efficacy and safety are the focus of attention. This article will be divided into chronic rhinosinusitis with nasal polyps and without nasal polyps two subtypes discussed nasal and oral glucocorticoids in the clinical therapeutic efficacy and medication safety.
Chronic Disease ; Glucocorticoids ; therapeutic use ; Humans ; Rhinitis ; drug therapy ; Sinusitis ; drug therapy

Objective To study glucose metabolism in patients with liver cirrhosis and to explore the relationship between glucose and liver function.Methods 164 liver cirrhosis patients with abnormal glucose metabolism were divided into A,B and C groups according to Child-Turcotte-Pugh(CTP)classification system.Glucose metabolic disorder and relation between blood sugar level and liver function were observed and analyzed.Results We divided the patients into three subgroups according to their blood sugar levels:hypoglycemia group,impaired fasting glucose group and diabetes mellitus group.Patients of Grade C were with the highest incidence of hypoglycemia,with a P value P

Neomangiferin, a natural C-glucosyl xanthone, has recently received a great deal of attention due to its multiple biological activities. In this study, a rapid and sensitive ultra-high performance liquid chroma-tography tandem mass spectrometry (UHPLC–MS/MS) method for the quantification of neomangiferin in rat plasma was developed. Using chloramphenicol as an internal standard (IS), plasma samples were subjected to a direct protein precipitation process using methanol (containing 0.05% formic acid). Quan-tification was performed by multiple reactions monitoring (MRM) method, with the transitions of the parent ions to the product ions of m/z 583.1-330.9 for NG and m/z 321.1-151.9 for IS. The assay was shown to be linear over the range of 0.2–400 ng/mL, with a lower limit of quantification of 0.2 ng/mL. Mean recovery of neomangiferin in plasma was in the range of 97.76%–101.94%. Relative standard deviations (RSDs) of intra-day and inter-day precision were both o 10%. The accuracy of the method ranged from 94.20%to 108.72%. This method was successfully applied to pharmacokinetic study of neomangiferin after intravenous (2 mg/kg) and intragastric (10 mg/kg) administration for the first time. The oral absolute bioavailability of neomangiferin was estimated to be 0.53%7 0.08%with an elimination half-life (t1/2) value of 2.74 7 0.92 h, indicating its poor absorption and/or strong metabolism in vivo.

Objective To investigate the correlation between the single nucleotide polymorphisms (SNPs) of IL-4 gene -590C/T as well as IL-13 gene -1112C/T and the incidence of asthma in children.To address whether the SNPs of two loci have any impact on total serum IgE( TIgE) levels.Methods Polymerase chain reaction-restriction fragment length polymorphism technique( PCR-RFLP) was used to determine the two locus polymorphisms of 250 patients with asthma and 200 healthy subjects in control group.The level of TIgE was tested by enzyme-linked immunosorbent assay(ELISA) in two groups.Results (1)The genotype distribu-tion in each locus was different in two groups(P<0.01).(2)In patient and control groups, the C allele fre-quency at IL-4-590 locus was 23.00%and 35.25%,the T allele frequency at the same locus was 77.00%and 64.75%, respectively.Besides, the C allele frequency at IL-13 -1112 locus was 59.20%and 70.50%,the T allele frequency at the same locus was 40.80%and 29.50%, respectively.The allele frequencies at each locus had the significant difference in asthma and control group(P<0.01).(3)The subjects with variant allele have higher risks for asthma than those without variant allele ( OR=1.82, 95%CI=1.36-2.44, and OR=1.647, 95%CI=1.246-2.178).(4)The TIgE level of asthma group was higher than that of control group in those with the same genotype (P<0.05).(5)No significant difference with the TIgE levels was observed in those with or without variant T allele at IL-13 -1112 locus(P>0.05), which was in contrast with that at IL-4 -590 locus in asthma group(P<0.05).Conclusion The SNPs of two loci were associated with childhood asthma.Variant al-lele T at 590C/T locus in IL-4 gene correlated with higher serum IgE levels.There was no significant correlation between the serum IgE levels and variant T allele at IL-13 -1112C/T locus.

A library with potential to produce six amino acids cyclic peptides was prepared using pET-28a as the starting plasmid. pVmut was used to amplify the Int(C)-dnaB-N-Int(N) fragment that was inserted into pET28a to give pEV. On pEV, DnaB split intein was expressed under the strong T7 promoter. Analyses of Escherichia coli transformed with pEV showed that DnaB split intein was produced in large quantity and the fusion protein self-spliced efficiently to produce cyclized DnaB-N. A synthesized 115 bp fragment mixture encoding 5 random amino acids was inserted into pEV to generate pEV-IS. The ligation mixture was transformed into E. coli. A library of 10(3) clones was obtained, 20 randomly picked clones were sequenced. All of them contain different sequences. Nine clones were chosen for further analysis. Split-intein-ISs were expressed in large quantity, and 90% of them self-spliced under 16 degrees C in 20 hours. After induction at 30 degrees C for 3 hours, the expressed DnaB split intein was purified using His-column, and then a molecular weight of target cyclic peptide was detected by MALDI-TOF-MS.
Amino Acids ; chemistry ; Base Sequence ; DnaB Helicases ; chemistry ; genetics ; Escherichia coli ; genetics ; metabolism ; Genetic Vectors ; genetics ; Humans ; Inteins ; genetics ; Molecular Sequence Data ; Peptide Library ; Peptides, Cyclic ; chemistry ; Protein Splicing ; Recombinant Fusion Proteins ; biosynthesis ; genetics ; Spectrometry, Mass, Matrix-Assisted Laser Desorption-Ionization ; Synechocystis ; chemistry

To investigate the effect of Dachengqi decoction on NF-kappaB p65 expression in lung of rats with partial intestinal obstruction and the underlying mechanism, 30 SD rats were randomly divided into three groups: sham-operation group, model group and Dachengqi decoction treatment group (Dachengqi group), with 10 animals in each group. The models were made by partially ligating their large intestines outside the body. The pathological changes were analyzed by HE staining. The expression of NF-kappaB p65 in rats lung were measured by using real-time polymerase chain reaction and immunohistochemistry respectively. Moreover, the expression of caveolin-1 in rats lung was also measured to. Increased edema, interstitial thickening, hemorrhage, and infiltration of inflammatory cells were found in the model group. In contrast, this change was significantly reduced in Dachengqi group as compared with model group. In addition, the up-regulated caveolin-1 and NF-kappaB p65 were also suppressed by Dachengqi decoction in lung of rats with partial intestinal obstruction. We are led to concluded that the caveolin-1-NF-kappaB pathway plays an important role in the development of lung injury of rats with partial intestinal obstruction and Dachengqi decoction could down-regulate the expression of caveolin-1 and NF-kappaB p65 in lung of rats with partial intestinal obstruction.

Objective: To study the axonal effect and the expression of integrin α6β4 during Schwann cell(SC) differentiation and myelination. Methods: Schwann cells were dissociated from the sciatic nerve of neonatal Waster rats and neurons dissociated from spinal cord. Singal cultures and purified populations of SC were cocultured with NC. Four methods (contrast microscope, scanning electron microscopy(SEM), immunocytochemistry method and in situ hybridization ) were used. Results: The separately cultured Schwann cells showed MBP negetive by immunocytochemistry method. But cocultured SC were shown positive. SEM showed that Schwann cells' membrane loop progressively circumnavigated around the axon during myelination, which suggested that the non-myelinating SC(nMSC) transformed to myelinating SC (MSC). In situ hybridization showed integrin α6β4 positive signals only on the outer surface of the Schwann cell-axon unit in SC coculture with NC. Conclusion: The differentiation and maturation of SC depend on axon, and the activity of integrins is expressed by axon. Axonal contact induces the expression of α6β4 during SC myelination, which suggests that integrin α6β4 is an important mediator of interactions of myelinating SC with the basal limina.

Objective To analyze the application of quality control cycle (QCC) in reducing the false negative rate of minimal residual disease (MRD) of flow cytometry in patients with acute myeloid leukemia (AML). Methods In AML patients with abnormal fusion gene detected in hematology laboratory of Changhai Hospital during the year of 2014, the prevalence of AML-MRD detected both by flow cytometry (FCM) and real-time fluorescence quantitative polymerase chain reaction (FQ-PCR) were analyzed retrospectively. The possible causes of false negative rate of flow cytometric MRD referring to PCR were further deeply analyzed, and the improvement measures were adapted from January 2015 to December 2015 and further judged all according to the QCC methods. Results Pareto diagram showed that the dilution and coagulation of the specimen, the improper analysis strategy and the incomplete combination of the MRD index [composition ratio:83.3 % (60/72)] were the main factors leading to the leakage of FCM MRD in 2014. The QCC group devised measures to reduce the dilution probability of bone marrow and develop a standard operating procedures (SOP) for sampling and testing, strengthen the maintenance of the flow instrument and more importantly, focused on optimizing the antibody panels and gated strategies referring to the current two main kinds of MRD detection combination modes on the basis of the latest advances published in 2015. Finally, the undetected rate of AML-MRD was reduced by FCM from 14.8 % (72/486) in 2014 to 2.6 % (16/620) in 2015. Conclusions The QCC can effectively reduce the leakage rate of flow cytometric AML MRD, improve the ability of laboratory quality control and the ability to solve problems. Solving problems with QCC is thus worthy of being popularized.

Purpose To summarize the imaging features of inflammatory bowel diseases (IBD) with double-filling method using multi-slice CT enterography (MSCTE), and to evaluate the clinical significance of MSCTE in diagnosis of IBD. Materials and Methods MSCTE data with double-filling method of 52 patients with IBD were retrospectively analyzed. 52 IBD patients included 42 cases of Crohn's disease (CD) and 10 cases of ulcerative colitis (UC). Bowel dilatation and lesions display were evaluated. Results Among 52 patients, ileum dilated optimal in 10 cases (19.23%) and good in 42 cases (80.77%); jejunum dilated good in 21 cases (40.38%) and poor in 31cases (59.62%). Exhaustive evaluation for large bowel diseases were good in 50 cases (96.15%). The ileocecal junction displayed well in 52 cases (100.00%). Among the 42 cases of CD, 20 cases (47.62%) had lesions limited in the small intestine, 22 cases (52.38%) had lesions involved both small intestine and colon. Among 10 cases of UC, 9 cases had lesions limited in the colon, and 1 case with the terminal ileum and the colon involved simultaneously. The MSCTE findings of 52 patients included bowel wall thickening and abnormal enhancement in 52 cases, stenosis in 28 cases, increased mesenteric vascularity in 46 cases, enlarged mesenteric lymph nodes in 27 cases, phlegmon in 10 cases, incomplete intestinal obstruction in 4 cases, abscess or inflammatory masses in 7 cases, fistulas in 3 cases, perianal lesion in 12 cases, serous cavity effusion in 15 cases, sacroiliitis in 13 cases, the urinary and biliary stones in 18 cases, and hepatosplenomegaly in 9 cases. Conclusion MSCTE with double-filling method can delineate the wall lesions of small bowels and colons very well, and can also display extraintestinal lesions and complications. It obviously improves the accuracy of localization and qualitative diagnosis on IBD.