Objective To investigate the effect of ulinastatin (UTI) on the expression of brainderived neurotrophic factor ( BDNF ) and remyelination in mice with experimental autoimmune encephalomyelitis ( EAE).Methods Twenty-four C57BL/6 mice were randomly divided into UTI group (U),normal saline treated group (S) and normal control group (N,n = 8,respectively).Demyelinations in the spinal cord were observed by solochrome cyanin staining.The expression of BDNF,myelin basic protein (MBP),and 2',3 '-cyclic nucleotide 3'-phosphodiesterase (CNP) in brain tissue of each group were evaluated by Western blot.Results Average clinical scores in group U at the 12,13,14,22,23,31,33,34 and 35 days were 0,0.25,0.38,0.63,0.63,0.40,0.40,0.40 and 0.40 respectively.They were significantly lower than group S at the same time ( U= 16.00,15.00,14.50,7.50,0.00,14.50,14.50,12.00 and 14.50,all P ＜0.05).Solochrome cyanin staining showed that demyelination of spinal cord in group U was also significantly improved than group S.Expressions of BDNF ( 1.96 ± 0.29),MBP (2.67 ± 0.48 ) and CNP ( 1.75 ± 0.20) in group U were all significantly higher than group S ( There were 0.80 ± 0.15,1.36 ± 0.38 and 1.06 ± 0.18 respectively,all P ＜ 0.05).Conclusions UTI has protective effect on EAE.The possible mechanism is that it could promote remyelination,and protect oligodendrocytes and neurons in EAE model by increasing BDNF expression in brain.

Objective To study the effect of Shaoyao Gancao Grain on serum prolactin level in female schizophrenia patients with high prolactin induced by risperidone.Methods 100 patients were randomly divided into the control group 50 cases,which were given risperidone. The study group 50 cases,which were given Shaoyao Gancao Grain on the basis of the control group. The two groups were treated for 12 weeks. Positive And Negative Syndrome Scale,serum prolactin and Estrogen level were measured by immunohistochemistry before and after 12 weeks of treatenmt.Results After 12 weeks of treatenmt,serum prolactin levels were decreased in the study group than control group (46.28 ± 14.06 ng/mlvs. 117.89 ± 22.11 ng/ml;t=10.242,P<0.01). PANSS score were decreased in the study group copare with before treatenmt (67.45 ± 7.00vs. 96.53 ± 11.88;t=7.125,P<0.01). PANSS score were decreased in the control group copare with before treatenmt (68.73 ± 7.71vs. 9 7.93 ± 12.65;t=6.541,P<0.01). But there were no difference in PANSS score between the two groups after treatenmt (t=0.682,P>0.05). ConclusionsShaoyao-Gancao grain can decrease serum prolactin level in female schizophrenia patients with high prolactin induced by risperidone,does not affect estrogen levels.

Objective To investigate the clinical efficacy of trimebutine combined with Xiangsha Pingwei in the treatment of functional dyspepsia and its effect on gastrointestinal hormone.Methods One hundred and twenty cases of functional dyspepsia were randomly divided into the control group and observation group,60 cases in each group.The control group was treated with trimebutine 0.2 g,3 times/d and the observation group was treated with trimebutine 0.2 g,3 times/d and Xiangsha Pingwei 10 g,2 times/d.Both groups were treated for four weeks,a course of treatment.Clinical efficacy and the influence on gastrointestinal hormone levels were compared between the two groups.Results The symptoms scores in both groups all decreased significantly after treatment.While the postprandial fullness scores,early satiety scores and epigastric pain scores in the observation group were significantly lower than those in the control group (0.62±0.12 vs.1.85±0.25,0.56±0.14 vs.1.46±0.21,0.48±0.15 vs.1.32±0.12,t=34.36,27.62,33.87,P<0.05).The total effective rate in the observation group was significantly higher than that in the control group (90.00% vs.73.33%,χ2=5.57,P<0.05).MOT and GAS levels in both groups increased significantly.While MOT and GAS levels in the observation group were significantly higher than those in the control group (MOT: (355.2±78.1) ng/L vs.(288.7±82.4) ng/L;GAS:(96.5±17.6) ng/L vs.(88.4±16.0) ng/L,t=4.54,2.64,P<0.05).The somatostatin (SS) level in both groups decreased significantly.While the SS level in the observation group was significantly lower than that in the control group ((41.1±11.1) ng/L vs.(48.9±12.9) ng/L,t=3.55,P<0.05).Conclusion Trimebutine combined with Xiangsha Pingwei can significantly improve the clinical symptoms and gastrointestinal hormone in patients with functional dyspepsia.

Objective To analyze risk factors and antimicrobial use for hospital-acquired pneumonia (HAP)due to multidrug-resistant organisms (MDROs)in an intensive care unit(ICU),so as to perform risk assessment and guide antimicrobial use.Methods From January 2012 to December 2013,HAP patients were conducted retrospective co-hort study,risk factors for MDRO-HAP and rationality of antimicrobial use were analyzed.Results A total of 110 cases of HAP occurred in ICU,63 cases (57.27%)were MDR-HAP.Logistic regression analysis revealed that re-cent hospital stay ≥5 days (OR=19.94),transference from other hospitals (OR =19.33),infection type of late-onset HAP (OR=7.98),and antimicrobial use in recent 90 days (OR =3.42)were independent risk factors for MDR-HAP.Initial empirical anti-infective treatment revealed that there were no significant difference in timing of antimicrobial administration within 24 hours after clinical diagnosis was confirmed,and rationality of antimicrobial selection between MDR-HAP group and non-MDR-HAP group (both P >0.05);The isolation rate of pathogens in MDR-HAP group was lower than non-MDR-HAP group (73.02% vs 91 .49% P <0.05 ).Targeted antimicrobial therapy revealed that there were no significant difference in selection,dosage,and frequency of antimicrobial use be-tween two groups(all P >0.05 );the rationality rate of therapy course in MDR-HAP group was higher than no-MDR-HAP group,but rationality rate of combination use of antimicrobial agents was slightly lower than the latter (both P < 0.05 ).Conclusion Patients in ICU should be conducted risk factor assessment,and according prevention and control measures should be formulated,so as to reduce the occurrence of MDR-HAP,health care workers should standardized the initial empirical anti-infective treatment.

Objective To evaluate the effect of plan-do-check-act (PDCA)cycle method in improving disinfection efficacy of object surface in intensive care unit (ICU).Methods On the basis of management of healthcare-associat-ed infection (HAI)and prevention of multidrug-resistant organisms,disinfection efficacy of object surface in an ICU was intervened,data about surface object specimens taken before,during,and after intervention,HAI in patients, as well as detection of MDROs were collected.Results The total qualified rate of specimens taken before,during, and after intervention was 58.24%,76.74%,and 88.71 %,respectively,there was an increased tendency,the difference was significant (χ2 =17.41 ,P =0.009);the incidence of HAI was 3.72%,2.42%,and 1 .78%,respec-tively,there was a decreased tendency(χ2 =6.03,P =0.039),case infection rate was 4.36%,2.75%,and 2.37%respectively,there was a decreased tendency (χ2 = 7.24,P = 0.046 );detection rate of MDROs was 34.03%, 27.45%,and 14.05%,respectively,there was a decreased tendency (χ2 =33.84,P =0.007),the percentage of pa-tients who were detected MDROs and HAI caused by MDROs showed a decreased tendency(χ2 =6.14,6.02,both P<0.05).Conclusion The implementation of PDCA cycle can effectively improve disinfectant efficacy of ICU object surface,and reduce the incidence of MDRO HAI.

Objective To investigate the correlations of plasma homocysteine(Hcy)level and apolipoprotein E gene polymorphism with Alzheimer' s disease(AD)and mild cognitive impairment (MCI).Methods A case-control study in 66 AD patients(AD group),64 MCI patients(MCI group) and 54 healthy controls(control group)was conducted.Plasma Hcy level and ApoE polymorphism were determined and analyzed.Results Plasma Hcy levels were significantly higher in AD and MCI groups than in control subjects(both P＜0.001).AD patients also showed increased plasma Hcy levels as compared with MCI patients(P＜0.001).Logistic regression analysis indicated that the increased plasma Hcy level was a risk factor for AD and MCI(OR＝ 1.435 and 1.312,both P＜0.001).ApoE ε3/3 was the most common genotype in AD,MCI and control groups,and ε3/4 and ε4/4 genotypes were more common in AD group and MCI group than in control group(both P＜0.05).The ε4 allele frequency of ApoE was 24.2％ and 23.4％ in AD or MCI group respectively,and 6.5％ in control group(AD or MCI vs.control,P＜0.05).The analysis by multiplicative interaction model showed that the odd ratio for MCI was 23.3 in patients with only hyperhomocysteinemia(Hhcy,Hcy＞ 15 μmol/L),12.6 in patients with carrying ε4 allele,and 46.7 in patients with both Hhcy and carrying ε4 allele,which indicated that there was interaction between hyperhomocysteinemia and carrying e4 allele.Conclusions Hyperhomocysteinemia and ApoE ε4 allele are correlated with dementia and also have additive interactions.

Objective To investigate the role of loss of heterozygosity (LOH) of SMAD2 and its relationship with clinicopathological parameters of primary gastric carcinoma. Methods Fifty cases of primary gastric carcinoma were monitored by polymerase chain reaction -single strand conformation polymorphism (PCR- SSCP) and silver staining to detect SMAD2 LOH. Results The incidence of LOH was 40.0%(22/45) at D18S450 and 33.3%(16/48)at D18S460 . LOH occurred in SMAD2 was 55.1%(27/49).The rate of SMAD2 LOH was 72.0% (18/25) in primary gastric carcinoma with lymph node metastasis , which was significantly higher than that in without lymph node metastasis (P

OBJECTIVETo investigate the expression of Toll-like receptor (TLR) mRNA in enterovirus 71(EV-A71) infected human Jurkat T cells and clarify the role of TLRs in the pathogenesis of EV-A71 infection-induced inflammation.

METHODSEV-A71 strains were isolated from feces of children patients with hand, foot and mouth disease in 2014 by Shenzhen Center for Disease Control and Prevention. Human Jurkat T cells were infected with 200 μl EV-A71 at 10(3) cell culture infective dose 50%(CCID50)/ml. The expression of TLR1-TLR10 mRNA in human Jurkat T cells was assessed at different exposure time by RT-PCR. Levels of TLR7 mRNA expression were detected by real-time PCR, and levels of myeloid differentiation factor 88 (MyD88) by western blot. The cytokine secretion of interleukin (IL)-6, IL-8 and Tumor Necrosis Factor α (TNF-α) was analyzed by ELISA assay.

RESULTSThe relative expression level of TLR7 mRNA in human Jurkat T cells were 1.26 ± 0.15, 1.75 ± 0.20, 2.26 ± 0.23 and 3.74 ± 0.62 in 6, 12, 24 and 48 h after EV-A71 infection, which the differences were significant with mock-infected group(t values were -2.96, -6.38, -9.57, -7.71; P<0.05). Western blot showed that the protein expression levels of MyD88 had increased 1.34 times and 2.17 times in 24 h and 48 h after EV-A71 infection compared with mock-infected group. After infected for 24 h and 48 h, the levels of IL-6 were (302.86 ± 38.11), (179.70 ± 14.50) pg/ml, which were significantly higher than mock-infected group (176.42 ± 9.60), (179.70 ± 14.50) pg/ml (t values were -5.57, -18.54, P<0.05). The levels of TNF-α in EV-A71 infected group (100.81 ± 9.81) pg/ml was higher than that in mock-infected group (56.19 ± 6.94) pg/ml, and the difference was significant (t=-6.43, P=0.003).

CONCLUSIONTLR7 is the main pattern recognition receptor responsible for EV-A71 recognition in immune cells, which then leads to the activation of TLR7 downstream signaling and the production of proinflammatory cytokines.

Blotting, Western ; Cell Line ; Enterovirus A, Human ; pathogenicity ; Enzyme-Linked Immunosorbent Assay ; Humans ; Interleukin-6 ; metabolism ; Interleukin-8 ; metabolism ; Myeloid Differentiation Factor 88 ; metabolism ; Real-Time Polymerase Chain Reaction ; T-Lymphocytes ; immunology ; virology ; Toll-Like Receptor 7 ; immunology ; Tumor Necrosis Factor-alpha ; metabolism

Objective:To evaluate the clinical effectiveness and safety of combined face and neck injections of botulinum toxin type A to improve face and neck aging.Methods:From January 2020 to January 2023, 30 female patients with age of 29-66 years, average (42.2±8.8) years, underwent face and neck combined injection of A-type botulinum toxin in the Department of Dermatology, Henan Provincial People′s Hospital. The injection sites included the forehead, between the eyebrows, around the eyes, the dorsum of the nose, and the mandibular margin, etc. The efficacy was assessed by the wrinkle severity scale (FWS) and the AB value of the distance from the lowest point of the mandibular margin on the midline of the hemiface to the level of the medial canthus at 4 and 24 weeks after the injection, as well as the subjective degree of improvement by the Global Aesthetic Improvement of the Face Scale (GAIS) and the Self-perception of Age (SPA), and the satisfaction of the patients and post-injection adverse reactions.Results:At 4 weeks after the injection, the total effective rate of improvement of wrinkles in all parts of the upper face was 100% (30/30), and there was a statistically significant difference in the improvement of AB ( t=28.35, P<0.05). At 24 weeks after the injection, the total effective rate of improvement of wrinkles in all parts of the upper face ranged from 16.7% (5/30) to 36.7% (11/30), and the improvement of AB still showed a statistically significant difference ( t=3.98, P<0.05). 100% (30/30) and 66.7% (20/30) of patients assessed their facial status as improved on GAIS at 4 and 24 weeks after the injection, respectively, and 100% (30/30) and 63.3% (19/30) of patients perceived themselves as younger. Patient satisfaction was 100% (30/30). After injection, there were 5 cases of slight ecchymosis at the injection site and 1 case of weakness in eyebrow elevation in the 30 patients, which disappeared on their own within 1 to 2 weeks. Conclusions:The therapeutic effect of face and neck combined injection of botulinum toxin type A on facial rejuvenation is obvious, with high patient′s satisfaction and no serious adverse reactions.

Objective: To investigate the status of knowledge about acquired immune deficiency syndrome(AIDS) among college freshmen in Jiangsu Province, and to analyze the influences of AIDS-related knowledge on their sexual attitudes and behaviors. Methods: A total of 8 633 freshmen from 20 colleges and universities in Jiangsu Province were enrolled by multi-stage stratified sampling. The questionnaire for young students about the eight items of AIDS basic knowledge were used to investigate the AIDS-related knowledge, sexual attitudes and behaviors. Multivariate Logistic regression model was used to analyze the influencing factors of the AIDS-related knowledge and to adjust the influences of AIDS-related knowledge on sexual attitudes and behaviors. Results: The overall qualified rate of AIDS-related knowledge among college freshmen in Jiangsu Province was 87.6% and the qualified rate of 8 items were between 59.8% and 98.3%. The types of schools, nationality, mother s education level and whether only child or not were identified as independent factors for qualified rate of AIDS-related knowledge(P<0.05). The awareness of AIDS-related knowledge had significant impacts on the sexual attitudes and behaviors of college freshmen. Students with insufficient knowledge were more likely to approve premarital sexual behaviors(OR=1.31, 95%CI=1.11-1.63), willing to use condoms consistently(OR=1.67, 95%CI=1.43-1.92) and to accept the HIV tests(OR=4.54, 95%CI=3.13-6.52). Students with unqualified knowledge were more likely to have sexual behavior(OR=1.89, 95%CI=1.42-2.49), while those with sexual experiences and insufficient AIDS knowledge were more likely to use condoms consistently(OR=2.13, 95%CI=1.22-3.78). Conclusion The education on AIDS-related knowledge for teenagers was helpful to construct correct sexual concepts and develop healthy sexual behaviors. However, the AIDS-related knowledge of college freshmen in Jiangsu Province is not sufficient and needed to improve.