AIM: To evaluate the association between apolipoprotein E(apoE) gene polymorphism and sporadic Alzheimer's disease (AD). METHOD: A case-control study was undertaken detecting the polymorphism of apoE by polymerase chain reaction and restriction fragment length polymorphism (PCR-RFLP). RESULTS:(1) The frequencies of ?3/4 genotype and ?4 allele in AD were significantly higher than that in age-matched controls( P

Objective The effect of Asperosaponin Ⅵ(ASAⅥ)on adipocyte differentiation and the involvement of Wnt signal pathway was investigated. Methods The murine bone marrow stromal cell line ST-2 were divided into 6 groups:control group, adipocyte differentiation group, and 4 different doses of ASAⅥgroups. Control group was exposed to the vehicle, adipocyte differentiation group was exposed to adipogenic reagent, and those 4 ASAⅥgroups were treated with different concentration(10-7, 10-6, 10-5, 10-4 mol/L)of ASAⅥafter adipocyte differentiation induction. 5 days later, oil red O staining was performed to calculate adipocyte rate. Then mRNA transcription levels of PPARγ, FABP4 genes andβ-catenin that were Wnt/β-catenin signaling pathway proteins were examined by FQ-PCR. Then Wnt pathway inhibitor DKK1 was supplemented into ST-2 cells treated with 10-4 mol/L ASAⅥfor 5 days. After that FQ-PCR was used to detect whether tran?scription levels of PPARγ, FABP4 andβ-catenin in ST-2 cells were changed. Results Compared with adipocyte differenti?ation group 10-5 mol/L and 10-4 mol/L ASAⅥtreatments greatly down-regulated the number of lipid droplets and markedly inhibited transcription levels of adipocyte characterization transcription factors included PPARγ, FABP4 while up-regulat?ed transcription level ofβ-catenin in ST-2 cells. DKK1 can reverse the inhibitory effect of ASAⅥon adipocyte differentia?tion in ST-2 adipocyte. The transcription levels of PPARγand FABP4 were up-regulated significantly while transcription level ofβ-catenin was inhibited. Conclusion ASAⅥblocks adipocyte differentiation in ST-2 cells which might be medi?ated through activating Wnt/β-catenin signaling pathway.

OBJECTIVEIt is demonstrated that excessive activation of NF-κB is central to the pathogenesis of inflammatory bowel disease (IBD). Zinc finger protein A20 (A20) is a key player in the negative feedback regulation of NF-κB signaling in response to multiple stimuli and has been described as central gatekeeper in inflammation and immunity. Mice genetically deficient in A20 develop severe intestinal inflammation and have increased susceptibility to dextran sodium sulfate (DSS)-induced colitis. Few studies have been done to explore the role of A20 in the pathogenesis of IBD. To clarify the relationship between intestinal inflammation and the expression level of A20 in IBD patients, the expression level of A20 and a series of inflammatory cytokines, such as NF-κB, IL-6, and IL-8, in children with IBD and controls were examined.

METHODTerminal ileal mucosal samples were obtained via endoscopy. Fifty-seven mucosal samples were divided into 4 groups: normal control group (n = 16), IBD remission group (n = 12), IBD active group (n = 13) and non-IBD enteritis group (n = 16). According to disease activity index scores, the IBD patients were divided into IBD remission group and IBD active group. Normal control group was consisted of patients with functional bowel disorders or intestinal polyps. Non-IBD enteritis was defined as changes in which endoscopy and histological examination showed inflammatory changes but could not be diagnosed as IBD. Real-time PCR was adopted for detecting the mRNA levels of A20, IL-6 and IL-8. Meanwhile immunohistochemistry was performed to measure the expression of A20 and NF-κB.

RESULT(1) The expression of A20 and NF-κB were very low in normal control group, but significantly up-regulated in IBD active group and non-IBD enteritis group (P < 0.01 for both); (2) Compared with normal control group, expression of NF-κB [(9.35 ± 4.84)% vs. (0.57 ± 0.44)%, P < 0.01], IL-6 (t' = 1.34, P > 0.05), IL-8 (t = 1.38, P > 0.05) increased in IBD remission group, while the expression of A20 in both mRNA (t = 1.03, P > 0.05) and protein levels [(0.36 ± 0.18)% vs. (0.87 ± 0.29)%, P < 0.01] decreased; (3) Compared with non-IBD enteritis group, although the expression of NF-κB [(24.17 ± 11.27)% vs. (55.29 ± 21.84)%, P < 0.01], IL-6 (t = 2.22, P < 0.05), IL-8 (t = 2.97, P < 0.01) were highly increased in IBD active group, the expression of A20 in both mRNA(t = 2.26, P < 0.05) and protein levels [(29.23 ± 11.70)% vs. (16.81 ± 5.90)%, P < 0.01]significantly decreased; (4) The expression of IL-6, IL-8 were similar in IBD remission group and non-IBD enteritis group (both P > 0.05), but the expression of A20 was much lower in both mRNA (t = 4.42, P < 0.01) and protein levels [(29.23 ± 11.70)% vs. (0.47 ± 0.25)%, P < 0.01] in IBD remission group.

CONCLUSIONThe results demonstrate that there is an excessive inflammatory response but insufficient up-regulation of A20 expression in IBD patients. Low levels expression of A20 may play an important role in the pathogenesis of IBD.

Case-Control Studies ; Child ; Endopeptidases ; metabolism ; Female ; Humans ; Inflammatory Bowel Diseases ; metabolism ; pathology ; Interleukin-6 ; metabolism ; Interleukin-8 ; metabolism ; Intestinal Mucosa ; metabolism ; pathology ; Male ; NF-kappa B ; metabolism

Objective:To explore influence of thrombus aspiration combined bivalirudin during emergency PCI on my- ocardial tissue perfusion and clinical prognosis in patients with acute ST elevation myocardial infarction (STEMI). Methods:A total of 102 patients with acute STEMI,who were confirmed with thrombus burden by CAG in our hos- pital from Jan 2012 to Jun 2014,were selected.According to random number table,they were randomly divided into thrombus aspiration + bivalirudin group (n=52,thrombus aspiration group)and heparin group (n=50,routine PCI group).TIMI blood flow grade 3 rate,TIMI myocardial perfusion grade (TMPG)after PCI,ST segment re- gression rate 2h after PCI,peak value and peak time of cTnI after PCI,LVEF,LVEDd,incidence rates of bleeding and major adverse cardiovascular events (MACE)on one week and one month after PCI were compared between two groups.Results:Compared with routine PCI group,there were significant rise in postoperative TMPG grade 3 rate (56.00% vs.88.46%),TIMI grade 3 rate (58.00% vs.88.46%)and ST segment regression rate (52.00% vs. 76.92%)in thrombus aspiration group,P<0.05 or <0.01. Compared with routine PCI group one month after PCI,there was significant rise in LVEF [(53.76±5.24)% vs.(57.95±5.51)%],and significant reductions in LVEDd [(53.70±3.39)mm vs.(50.63±1.24)mm],peak value [(16.00±4.28)μg/L vs.(13.81±4.00)μg/L]and peak time [(14.00±2.80)h vs.(13.00±2.23)h]of cTnI in thrombus aspiration group,P<0.05 or <0.01. Incidence rate of mild bleeding in thrombus aspiration group was significantly lower than that of routine PCI group (1.9% vs.16.0%),P<0.05,but there was no significant difference in incidence rate of MACE between two groups,P>0.05. Conclusion:Thrombus aspiration combined bivalirudin during emergency PCI is safe and fea- sible for acute STEMI patients,it can effectively reduce incidence rate of bleeding,remove coronary thrombus,im- prove myocardial tissue perfusion and doesn't increase incidence rate of MACE.

AIM:To investigate the effects of Fu Fang Xiao Chai Hu Tang(FFXCHT)on level of Interleukin-2 and value of CD4+/CD8+ in mice bearing Ehrlish ascites carcinoma(EAC).METHODS:The effects of FFXCHT on the EAC were observed and index of thymus and spleen were observed.The method of [3H]-TdR incorporation was used to measure the IL-2 level,and the value of CD4+/CD8+ was assayed by ELITE calibur flow cytometry.RESULTS:Compared with the model group,FFXCHT inhibited the growth of EAC(P

Objective To detect the type of gene mutation of thalassemia in Kunming city.Methods Sixty-three cases highly suspec-tive of thalassemia were determined with the methods of ploymerase chain reaction(PCR) and reverse dot blot(RDB) for the type of gene mutation.Results According to gene analysis,35 cases were final diagnosed from 63 cases suspective of thalassemia.Among the total,4 cases were gene deficiency ?-thalassemia,and 30 cases were gene deficiency ?-thalassemia,and there was 1 case both ?-thalassemia and ?-thalassemia.There were 9 types of gene mutation with 15 gene combinations in 35 samples.The main type of ?-thalassemia was--SEA/??,there were 6 types with 11 gene combinations from the types of genes of ?-thalassemia,the highest incidence of gene mutation was 17 site,including 17 site homozygote,heterozygote and double heterozygote.Conclusions The thalassemia invasion of Yunnan has its characters,and it is valuable to launch further research.In the same patient,there are ?-thalassemia and ?-thalassemia,it signifies that those 2 types should be diagnosed in the same time,to prevent missed diagnosis.

ObjectiveTo standardize the service for mental disability in community, and evaluate scientifically the effect of rehabilitation measures and social factors on the prognosis of disease.MethodsIn the communities selected by cluster sampling method, family-social rehabilitation service was established. The observe groups or specified observers were selected by the community committee, and the maintenance treatment and rehabilitation evaluation were made by psychiatrists.ResultsAfter community rehabilitation treatment, schizophrenia could be compliant with maintenance treatment, which led to satisfactory social function evaluation and rehabilitation result.Conclusion Community rehabilitation treatment could increase the compliance with medical treatment and decrease the occurrence of relapse.

Abstract: Objective　To understand the distribution and drug resistance of bacteria in clinical blood culture specimens in Ningxia in recent years, and to provide a basis for the prevention and treatment of bloodstream infection diseases. 　　　Methods　The blood culture isolation bacteria and drug resistance of Ningxia bacterial resistance monitoring network hospitals from 2018 to 2020 were statistically analyzed by WHONET5.6 software. Results　In the past three years, a total of 6 757 strains of bacteria were isolated from blood samples, including 3 697 strains (54.7%) of gram-negative bacteria and 3 060 (45.3%) of gram-positive bacteria. Among the gram-negative bacteria, Escherichia coli (2 074 strains,30.7%), Klebsiella pneumoniae (696 strains), Pseudomonas aeruginosa (139 strains), and Acinetobacter baumannii (121 strains). Among the gram-positive bacteria, coagulase-negative Staphylococcus (1 691 strains,25.0%), Staphylococcus aureus (442 strains), Streptococcus spp. (431 strains), Enterococcus spp. (379 strains). Resistance to Escherichia coli and Klebsiella pneumoniae was 56.6% and 22.6% against third-generation cephalosporins, and resistance to carbapenems was 1.0% and 3.7%, respectively. Pseudomonas aeruginosa and Acinetobacter baumannii were resistant to carbapenems at 9.0%（12/139） and 80.7%（71/121）. Methicillin-resistant Staphylococcus aureus (MRSA) was detected at 26.8%, methicillin-resistant coagulase-negative Staphylococcus was detected at 70%, and no Staphylococcus bacteria resistant to vancomycin and linezolid were found. For three years, only 1 strain of vancomycin-resistant Enterococcus faecalis was detected, and no linezolid-resistant Staphylococcus and Enterococcus were detected. Conclusions　Ningxia clinical blood specimen isolates of Escherichia coli, coagulase-negative Staphylococcus, and Klebsiella pneumoniae are more common. Among them, the resistance rate of Escherichia coli and Klebsiella pneumoniae to the third generation of cephalosporins is relatively stable, and the resistance rate to carbapenems is low. Acinetobacter baumannii is highly resistant to carbapenems, and methicillin-resistant Staphylococcus aureus detection rates are on the rise and should be closely monitored.

Objective To investigate the effects of extracellular ATP on the expression of(Mi- crotubule associated proteins MAP-2)and the recovery of motor function after spinal cord injury in rats. Methods Six rats were selected randomly from 66 adult healthy Wistar rats as the normal control group,the rest animals were divided into two groups after contusion injury was performed by drop weight method with Allen impactor:Group A(ATP group)and Group B(control group),each group contained thirty rats.At days 1,3,7,14,and 28 after injury,the rats were killed,the expression of MAP-2 was detected with immunohistochemistry.The expression of MAP-2 in the adjacent area was quantitatively an- alyzed with a computer image analysis system.The recovery of motor function after spinal cord injury was assessed with improved Tarlov scores.Results The expression of MAP-2 was higher in Group A than in Group B after spinal cord injury in rats.Significant difference was revealed by the expression of MAP- 2 between the two groups at days 14 and 28 after injury(P

Objective　To investigate genes involved in cancer metastasis, mRNA differential display was used to compare the levels of gene expression in two cell sublines derived from human giant cell carcinoma of lung (PG) which had different metastatic potentials. Methods　Using in vivo tumorigenicity and a spontaneous metastasis assay in nude mice, two sublines (BE1, LH7) from human giant cell carcinoma of lung (PG) with different metastatic potentials were isolated and characterized. mRNA differential display was used to compare the levels of gene expression between them and the obtained results were confirmed by Northern hybridization. Results　One differentially expressed band was nearly identical (99% homology) to Ras-GTPase-Activating protein SH3 domain binding protein (G3BP). G3BP displayed a strong expression in LH7 (non-metastatic in recipient nude mice) and a very weak expression in BE1 (100% metastatic frequency). The same different expression level of G3BP was detected in Northern hybridization with another panel of cell sublines with different metastatic potentials (established in our lab) derived from human prostate carcinoma cell line PC-3M. Conclusion　Our results indicate that G3BP was implicated in cancer metastasis because of its differential expressions in the two panels of cell sublines with different metastatic potentials.