OBJECTIVE To investigate the distribution and antimicrobial susceptibility of clinical isolates from the aged patients with urinary tract infection.METHODS Totally 1211 strains of germs were identified and(susceptibility) tests were performed using VITEK-60 system as recommended by the manufacturer.RESULTS The most common pathogens were Escherichia coli,Klebsiella pneumoniae,and Enterococcus faecalis.The infective rate of fungi was higher in the elderly.CONCLUSIONS Our data will be useful for reasonably choosing(antimicrobial) agents in(treatment) of UTI in the aged.

Objective To explore the effect of dendrobium nobile polysaccharides on the expression of the WT 1 gene in my-eloid leukemia cells.Methods The CCK8 assay was used to detect the half maximal inhibitory concentration(IC50 )of dendrobium nobile polysaccharides in 3 kinds of leukemia cells;the each kind of leukemia cells were divided into the treatment group and the control group.The cells in the control group maintained the normal growth,while which in the treatment group were given the den-drobium nobile polysaccharides stimulation.The Hoechst33258 staining was used to detect the apoptosis situation of the cells in the two groups.The WT l gene expression level was detected by the real-time PCR and the protein expression levels of WT1,53 and BAX were detect the Western blot.Results Dendrobium nobile polysaccharides had the similar IC50 values in 3 kinds of myeloid leukemia cells,which were (110.71±6.49),(104±48.50),(96.66±5.10)mg/mL respectively,the difference among them had no statistical significance (P >0.05);the apoptosis rate of the treatment group was higher than that of the control group (P <0.05);the expression levels of WT1 gene and protein in the treatment group were decreased compared with the control group(P <0.05), while the expression of P53 and BAX protein was increased.Conclusion Dendrobium nobile polysaccharides can obviously decrease the expression level of WT1 protein,and has a certain killing effect on myeloid leukemia cells.

Objective To investigate the apoptosis of neuron surrounding the hematoma in intracerebral hemorrhage(ICH)rats.Methods 64 male SD rats were randomly divided into two groups,trial group(ICH,n=56)and control group(sham operated,n=8).The brains of the rats were removed 6 h,12 h,24 h,48 h,72 h,7 d,14 d after ICH.Terminal deoxynucleotidyl transferase-mediated deoxyuridine triphosphate-bioti in situ nick end-labeling(TUNEL)was used to detect deoxyribonucleic acid(DNA)fragmentation.The activation of caspase-3 was measured with immunohistochemistery.The electron microscope were used to observe histological changes surrounding the hematoma.Results Under transmission electronic microscope,shrunken neuron and glial cell with pre-apoptotic signs of intensely stained cytoplasm and abnormally dense nucleus,swollen blood vessel were found.TUNEL-positive cells appeared in the periphery of the hematoma and increased from 6 h to 14 d after ICH.Little TUNEL-positive cells could be found in the control group.The change of the caspase-3-positive cells was similar to TUNEL,but the peak of caspase-3-positive cells was more early than that of TUNEL.Conclusion The apoptosis of neuron occurred surrounding the hematoma in ICH rats and it may related to caspase-3.

Objective To analyze the correlation between different types of placental implantation after cesarean section and previous cesarean section.Methods The data of 7 286 pregnant women with second pregnancy after cesarean section from January 2010 to October 2018 were retrospectively analyzed.Among them,842 cases had placental implantation.Five hundred and ninetyseven cases were adhesion type,204 cases were implantation type and 41 cases were penetration type.The relationship between the type of placental implantation in this pregnancy and emergency operation and postpartum hemorrhage during previous cesarean section and the time from this pregnancy was analyzed.Results The total incidence of placental implantation and the incidence of three types of placental implantation in the transfer operation group was higher than that of non-transfer operation group,total:27.4％ (419/1528) vs.7.3％ (423/5 758);adhesion type:18.0％ (275/1 528) vs.5.6％ (322/5 758);implantation type:7.9％ (121/1 528) vs.1.4％ (83/5 758);penetration type:1.5％ (23/1 528)vs.0.3％ (18/5 758),and there were significant differences (P＜0.01).The total incidence of placental implantation and the incidence of three types of placental implantation in postpartum hemorrhage group was higher than that in the non-postpartum hemorrhage group,total:33.9％ (74/218) vs.10.9％ (768/7 068);adhesion type:22.5％ (49/218) vs.7.8％ (548/7 068);implantation type:9.6％ (21/218) vs.2.6％ (183/7 068);penetration type:1.8％ (4/218) vs.0.5％ (37/7 068),and there were significant differences (P＜0.01).There was no statistical significance between the time of pregnancy and the incidence and total incidence of three types of placental implantation (P＞0.05).Conclusions Placental implantation after cesarean section may be closely related to emergency operation and postpartum hemorrhage during the previous cesarean section.Pregnant women with second pregnancy after cesarean section should strengthen the management of pregnancy.

Objective:To investigate the effects of abdominal Tuina(Chinese therapeutic massage)on behavioral function,5-hydroxytryptamine 1A receptor(5-HT1AR),and synapsin-1(Syn1)in neonatal rats with hypoxic-ischemic brain injuries(HIBI). Methods:Forty healthy neonatal rats,born of 5 specific pathogen-free healthy pregnant rats,were randomly divided into a group for modeling(n=28)and a sham operation group(n=12)on the 7th day of birth.In the group for modeling,24 neonatal rats with HIBI successfully established by the Rice method were randomly divided into a model group(n=12)and an abdominal Tuina group(n=12).The abdominal Tuina group was given abdominal Tuina for 28 d from 24 h after modeling,and the other groups were put under the same conditions but without any treatments.Rats in each group were subjected to suspension tests on the 7th,14th,21st,and 28th days of intervention.After the intervention,the rat hippocampal tissue was collected and stained with hematoxylin-eosin to observe the pathological changes in the rat hippocampal CA1 region.The 5-HT1AR expression in rat hippocampal CA1 region was detected by immune-histochemistry.The Syn1 expression in rat hippocampus was measured by Western blotting method. Results:The cells were disordered,and edema and necrosis appeared in the hippocampal CA1 region of the model group.Cell arrangement was clear,and edema was improved obviously in the hippocampal CA1 region of the abdominal Tuina group.Compared with the sham operation group,the suspension test scores,the number of 5-HT1AR positive cells,and Syn1 protein expression in the hippocampus decreased significantly in the model group after 21 d and 28 d of interventions(P<0.05).Compared with the model group,the suspension test scores,the number of 5-HT1AR positive cells,and Syn1 protein expression increased significantly in the abdominal Tuina group after 21 d and 28 d of interventions(P<0.05). Conclusion:Abdominal Tuina improves the behavioral function of upper limbs and up-regulates the expression levels of 5-HT1AR and Syn1 in the hippocampus of neonatal HIBI rats.

OBJECTIVETo prepare the oral solution of egg yolk hepatitis B virus (HBV)-specific transfer factor (EYHBV-TF) and evaluate its immunological activity as an immune regulator against hepatitis B.

METHODSFrom hens immunized with the Hepatitis B vaccine the egg yolk was isolated to extract the specific transfer factor EYHBV-TF, and its physicochemical properties were examined. Leukocyte adhesion inhibition test (LAI) was performed to detect the immunogenic activity of EYHBV-TF. The solution of EYHBV-TF was then administered orally in normal mice, and the specific cellular immune activity induced was assayed with delayed type skin hypersensitivity test (DTH), with the non-specific immune activity assessed with immune organ index. The immune responses induced by oral EYHBV-STF solution were compared with those by EYHBV-STF injection and by different dosages (injection and oral) of porcine spleen HBV-specific transfer factor (PSHBV-STF), porcine spleen nonspecific transfer factor, and egg yolk extracts from non-immunized hens.

RESULTSThe prepared EYHBV-STF oral solution, which met the standards for biological products, could inhibit leukocyte adhesion in vitro and significantly enhance mouse foot pad swelling, demonstrating its capability of transferring antigen-specific delayed type hypersensitivity reactions to naive recipient. EYHBV-STF oral solution also significantly improved the immune organ index in mice (P<0 01) with similar effects to those caused by EYHBV-STF injections and by PSHBV-STF injection and oral solution.

CONCLUSIONOrally administered EYHBV-STF and EYHBV-STF injection both possess hepatitis B antigen-specific cellular immune activity and can significantly enhance specific cellular immune responses.

Animals ; Chickens ; Egg Yolk ; chemistry ; Hepatitis B ; drug therapy ; Hepatitis B Antigens ; Hepatitis B virus ; drug effects ; Immunity, Cellular ; Immunization ; Mice ; Swine ; Transfer Factor ; administration & dosage ; pharmacology

OBJECTIVEDanshen, as a traditional Chinese medicine for promoting blood circulation and removing blood stasis, is widely applied in improving human erythrocyte deformability in clinics. But its direct effect on erythrocyte membranes is still unclear.

METHODIn this essay, the confocal Raman technique was adopted to measure the changes in Raman spectra of human erythrocytes before and after the administration of Danshen injection.

RESULTThe results showed slight changes in group conformations corresponding to erythrocyte membranes after the administration of danshen injection. Specifically, 1064, 1126 cm(-1) spectral lines attributed to phospholipid molecule acyl C-C skeleton anti-conformation were obviously weakened, whereas 1091 cm(-1) spectral line attributed to phospholipid molecule acyl C-C skeleton guache conformation notably intensified. Besides, the longitudinal order-parameter in chains (Strans) of phospholipids was reduced significantly.

CONCLUSIONDanshen injection can transfer erythrocyte membrane phospholipid molecule acyl C-C skeleton anti-conformation to guache conformation, indicating the increase in liquidity of erythrocyte membrane phospholipids and erythrocytes. Danshen injection's effect in improving erythrocyte membrane structure and function may be the intrinsic mechanism for its pharmacological effect as a traditional Chinese medicine.

Adult ; Blood Proteins ; chemistry ; Erythrocyte Membrane ; chemistry ; drug effects ; Female ; Humans ; Injections ; Male ; Molecular Conformation ; Phospholipids ; chemistry ; Salvia miltiorrhiza ; Spectrum Analysis, Raman ; methods ; Young Adult

To evaluate the immune responses of recombinant Lactobacillus casei 393 expressing Porcine Epidemic Diarrhea Viral (PEDV) N protein as oral vaccine, n gene of PEDV was subcloned into the expression vector pPG-1, and then transformed into L. casei 393 by electroporation, resulting in recombinant strain pPG-1-n/L, casei 393. The recombinant strains were induced to express interest protein, which was detected by Western blotting, immunofluorescence microscopy and the whole bacteria ELISA. And then BALB/C mice were used as an animal model immunized with recombinant strains by oral administration, and the immune efficacy was analyzed. The recombinant PEDV N protein showed the antigenic specificity, and was located on the bacterial cell walls of pPG-1-n transformed L. casei. The results of ELISA showed that the mice immunized with recombinant strains could produce remarkable special sIgA level in the feces, and high level of anti-PEDV N protein IgG in the serum (P < 0.01), but the induced antibodies in serum did not demonstrated neutralizing effect. Statistical significant difference was observed among the spleen lymphocyte proliferation index (LPI) among the immunization groups of mice and control groups. And there was significant increase. of IFN-gamma and IL-4 contents in the supernatant of spleen cell culture in immunized group. In conclusion, the oral immunizations with recombinant L. casei 393 can induce significant specific mucosal PEDV N-specific IgA response as well as serum IgG responses, and can evoke both mucosal immune and system immune responses.
Administration, Oral ; Animals ; Antibody Formation ; Coronavirus Infections ; prevention & control ; Female ; Immunity, Mucosal ; immunology ; Lactobacillus casei ; genetics ; metabolism ; Mice ; Mice, Inbred BALB C ; Nucleocapsid Proteins ; biosynthesis ; genetics ; immunology ; Porcine epidemic diarrhea virus ; immunology ; Recombinant Proteins ; biosynthesis ; genetics ; immunology ; Swine ; Viral Vaccines ; administration & dosage ; immunology

Objective To investigate the safety and efficacy of embolization of inferior phrenic artery as nonbronchial systemic artery(NBSA) for hemoptysis.Methods Imaging and clinical data of 1 1 patients with inferior phrenic artery as NBSA were analyzed retrospectively, and complications and hemoptysis recurrence rate were recorded.Results Seven patients underwent enhanced CT examination and 4 patients underwent plain CT examination before embolization.Six of those patients who underwent enhanced CT examination were found abnormal arteries,and were confirmed as NBSA by angiography.The other 5 patients were found unmatch of lesion distribution and bronchial arteries during procedure,and inferior phrenic artery as NBSA were found by expanding angiography.All procedure were successfully performed,3 cases occurred hiccup and need not treatment.No serious complications occurred,such as incontinence and paraplegia.During (1 8.7 ± 1 3.8)months follow-up,only 1 patient recurrence of hemoptysis,and successful after conservative treatment,and the other 10 patients had no recurrence of hemoptysis.Conclusion The inferior phrenic artery as NBSA can induce hemoptysis.It is safe to embolization of the inferior phrenic artery,which can reduce the recurrent rate of hemoptysis.

Objective:To investigate the pathogen distribution and antimicrobial resistance among lower respiratory tract infections in patients with hematological malignancies.Methods:Sputum samples were collected from 967 patients with hematological malignancies and lower respiratory tract infections in Department of Hematology,the Second Hospital of Shanxi Medical University from January 2017 to July 2020. The pathogens and drug sensitivity reports were carried out by automatic bacterial identification instruments. WHONET 5.6 and SPSS 20.0 softwares were used for statistical analysis.Results:A total of 961 strains of pathogens were isolated, 516 (53.7%) pathogens were Gram-negative bacteria, mainly 118 strains of Klebsiella pneumonia (12.3%), 68 strains of Pseudomonas aeruginosa (7.1%), 67 strains of Acinetobacter baumannii (7.0%),52 strains of Stenotrophomonas maltophilia (5.4%), 43 strains of Escherichia coli (4.5%), and 42 strains of Enterbacter cloacae (4.4%). There were 171 (17.8%) strains of Gram-positive bacteria and 274 (28.5%) fungi. The drug resistance rates of Pseudomonas aeruginosa and Acinetobacter baumannii to carbapenem were 22.1%-31.3%. Stenotrophomonas maltophilia was sensitive to levofloxacin, compound sulfamethoxazole and minocycline. The antimicrobial resistance rates of these three enterobacteria to carbapenems, cefoperazone/sulbactam, piperacillin/tazobactam were low (<10%). The resistant Gram-positive bacteria to ticoplanin, vancomycin and linazolamide were not detected.Conclusion:The major pathogens related to lower respiratory tract infections in patients with hematological malignancies are gram-negative bacteria in our centre. Different pathogens appear different characteristics of antimicrobial resistance.