Child ; Child, Preschool ; Clinical Laboratory Techniques ; DNA, Fungal ; genetics ; Evidence-Based Medicine ; Fungi ; genetics ; isolation & purification ; Humans ; Infant ; Mycological Typing Techniques ; Mycoses ; diagnosis ; microbiology ; Polymerase Chain Reaction ; Serologic Tests ; Specimen Handling

Objective To investigate the results of tumor specific growth factor(TSGF) levels in in healthy people and cancer patients in Guangzhou areas .Methods The serum TSGF levels of 6 615 health check-up receivers and 287 patients with cancer in the hospital from July 2012 to June 2013 were detected .Results In health check-up receivers ,the level and positive rate of TSGF were higher in >40-50 age women .The level and positive rate of TSGF in men were increased with age .The levels of TSGF in pa-tients with lung cancer ,liver cancer and digestive system tumor were higher than that in health check-up receivers(P<0 .01) ,but there has no statistically difference between genital system cancer patients and healthy check-up receivers(P>0 .05) .Conclusion Performing TSGF test in health examination is great significance to the early diagnosis of malignant tumors .The reference value range of TSGF should be set according to different gender and age .

Objective To investigate the manifestations of esophageal motility disorders and evaluate the association between them and dysphagia, laboratory tests and other accessory examinations in patients with Sj(o)gren's syndrome (SS). Methods Esophageal manometry was performed in 31 patients with SS and 18 healthy volunteers by the step pull-through method. Results Decreased upper esophageal sphincter pressure was detected in 19 of the 31 patients (61%) with SS, while 4 of 18 (22%) in controls. The frequency was significantly higher in patients than in healthy controls (P=0.008). Fifteen of 31 patients (48%) showed various patterns of esophageal dysfunction including ineffective esophageal motility in 6 patients, nutcracker esophagus in 3 patients and nonspecific dysmotility in 6 patients. No major differences were found in esophageal parameters (peak amplitude, wave duration and velocity) when comparing primary SS with secondary SS. These esophageal abnormalities were not correlated with clinical manifestations, laboratory examinations and other auxiliary examinations. Conclusion Patients with SS may have esophageal motility disorders, which can presents with different patterns.

AIM:To explore the role of sphingosine 1-phosphate (S1P) in the dysfunction of vascular endo-thelial cells exposed to high glucose.METHODS: In human aortic endothelial cells cultured under high-glucose ( 22 mmol/L glucose) medium, nitric oxide ( NO) level, polymorphonuclear neutrophil-endothelial cell adhesion rate, protein level of intercellular adhesion molecule-1 ( ICAM-1) , migration of endothelial cells and Akt/endothelial nitric oxide syn-thase ( eNOS) pathway activation were observed after S1P, sphingosine kinase-1 inhibitor and/or Akt inhibitor treatments. RESULTS:S1P decreased NO level, increased polymorphonuclear neutrophil adhesive rate, enhanced ICAM-1 protein level, and inhibited migration of endothelial cells and activation of Akt/eNOS pathway in endothelial cells cultured under high-glucose condition.Sphingosine kinase-1 inhibitor, which reduced S1P content, significantly improved the above endo-thelial cell function indexes and restored the activation of Akt/eNOS pathway.CONCLUSION: S1P promoted high glu-cose-induced dysfunction of endothelial cells probably by inhibiting the activation of Akt/eNOS signal pathway.Targeting S1P is expected to become one of potential treatment strategies to reduce endothelial cell dysfunction.

Objective To investigate CT appearances of abdominal primary malignant fibrous histiocytoma(MFH).Methods The CT characteristics,clinical features and pathological data of 1 7 patients with MFH proved pathologically were analyzed retrospectively. Results The lesions located in retroperitoneum were 6,in liver were 5,in kidney were 2,in superior mesentery was 1,in greater omentum was 1,in stomach was 1,in ileum was 1.The lesions are oval shape,lobulated,nodule shape,and the size of these lesions were large. 2 cases of MFH located in gastrointestinal tract were slightly low density,and the remaining were uneven high density due to necro-sis.In CT contrast enhanced scan,the solid portion and internal divisions showed progressive or continuous enhancement,and the nec-rosis were not enhanced in MFH located in the retroperitoneum,the greater omentum,the superior mesentery and the liver.MFH in kidney was poorly circumscribed and showed mild progressive enhancement lower than normal renal parenchyma.The stomach and ileum lesions showed uniform and continuous enhancement with normal gastrointestinal mucosa in corresponding parts.Conclusion Imaging features of retroperitoneal MFH were the same as those of interstitial tumors,and most tumors showed features of progres-sive and persistent enhancement,but have different imaging appearances with the malignant lesions in corresponding parts.

Objective:To evaluate and compare electroacupunctures (EA) with different parameters and moxibustion at different temperatures influencing the activation of mast cells (MC) in Tianshu (ST 25) regions of visceral hyperalgesia model rats. Methods:Rats (except for model group) respectively accepted 1 mA or 3 mA EA or moxibustion at 43 or 4 to℃℃stimulate Tianshu (ST 25) points after randomization of the fifty visceral hyperalgesia model rats, and then were compared with that in model and normal groups. Number, degranulation numbers, degranulation rates in Tianshu (ST 25) regions MC of rats in each group were observed using toluidine blue staining. Abdominal withdrawl reflex (AWR) score was used to evaluate the rat visceral hyperalgesia reactions. Results:Compared with the normal group and the model group, MC numbers (P<0.05,P<0.01,P<0.01,P<0.01), degranulation numbers and degranulation rates (P<0.01,P<0.01, P<0.05,P<0.01) of Tianshu (ST 25) MC in regions tissues in 43℃ and 4℃ moxibustion groups, and 1 mA and 3 mAEA groups all increased significantly. Compared with the model group, AWR scores were significantly lower in 43℃ and 4℃ moxibustion groups, and 1 mA and 3 mAEA groups under the stimulation of 20 mmHg, 40 mmHg, 0 mmHg or 80 mmHg colorectal distension (CRD) (P<0.05 in 1 mA and 3 mA EA groups under the stimulation of 20 mmHg,P<0.01 in the other groups). AWR scores in 43℃ and 4℃moxibustion groups under the stimulation of 20 mmHg, 40 mmHg, 0 mmHg or 80 mmHg CRD were not significantly different from those in the normal group (allP>0.05); AWR scores in 1 mA EA group under the stimulation of 0 mmHg or 80 mmHg were significantly higher than that in the normal group (P<0.01); AWR score in 3 mA EA group under the stimulation of 0 mmHg was significantly higher than that in the normal group (P<0.01), and AWR scores in 3 mA EA group under the stimulation of 20 mmHg or 80 mmHg were also higher than that in the normal group (P<0.05). AWR scores were higher in 1 mA EA group under the stimulation of 40 mmHg or 80 mmHg than that in 4℃ moxibustion group (P<0.05); AWR score was higher in 3 mA EA group under the stimulation of 40 mmHg than that in 4℃ moxibustion group (P<0.05). Conclusion:There are differences among EA of different parameters and moxibustion of different temperatures in activating on Tianshu (ST 25) regions MC of visceral hyperalgesia model rats, as well as in improving the visceral hyperalgesia reaction. The effect of 4℃ moxibustion is the most significant.

Objective Rapid elevation of the IgG antibody against Candida Enolase ( Eno ) has been observed in patients with invasive candidosis in an early stage .The present study was to confirm the association of Candida colonization with humoral im-mune anamnestic response of the dominant antigen . Methods Twenty-four mice were randomized into group 1 treated by oral Candi-da colonization plus intraperitoneal infection ( immunocompetent , n=8) , 2 treated with immunosuppressant in addition to the treatment of group 1 ( immunocompromised , n=8) , 3 treated by oral Candida colonization only ( immunocompetent , n=4) and 4 treated by in-traperitoneal injection only( immunocompetent, n=4).The number of Eno-specific memory B-cells in the spleen and the levels of IgG , IgM and IgA antibodies were determined in the peripheral blood of the immunocompetent and immunocompromised invasive candidiasis mice . Results At 7 days after invasive infection , there were significantly more Eno-specific memory B-cells in the mice of groups1 ( 47.25 ± 13.81) and 2 (43.14±15.95) than in groups 3 (8.00±3.74) and 4(8.50±2.38) (P<0.01), with no statistically significant differences between either groups 1 and 2 or groups 3 and 4 (P >0.05).Eno-IgG antibodies were detected in the serum of the mice of the first two groups in the early stage of invasive infection and positively corre -lated with antigen-specific memory B-cells (r=0.737,P <00.1 ). Conclusion Rapid elevation of the Eno-IgG antibody level in the early stage of invasive infection after Candida colonization may be attributed to the rapid proliferation of humoral immune memory cells.

Antigens, Bacterial ; genetics ; metabolism ; Bacterial Proteins ; genetics ; metabolism ; Child ; Child, Preschool ; DNA, Bacterial ; genetics ; Gastritis ; pathology ; Gene Expression Regulation, Bacterial ; Helicobacter Infections ; microbiology ; pathology ; Helicobacter pylori ; genetics ; Humans ; Immunohistochemistry ; Peptic Ulcer ; microbiology ; pathology ; Polymerase Chain Reaction

Objective:To evaluate the effects of different position interventions in patients with acute respiratory distress syndrome (ARDS) undergoing mechanical ventilation from the aspects of effectiveness and safety using the method of network Meta-analysis.Methods:Randomized clinical trials (RCTs) related to the therapeutic effect of position interventions in adult ARDS patients undergoing mechanical ventilation were retrieved in PubMed, Embase, Cochrane Library, Web of Science, CINAHL, China Biomedical Literature Database, China National Knowledge Infrastructure, VIP and WanFang Data. The search time limit was from the establishment of the database to January 2021. According to the literature inclusion and exclusion criteria, literature was screened and the quality evaluation and data extraction were carried out. StataSE 15 and Addis 1.16.6 were used for network Meta-analysis.Results:A total of 31 RCTs were included, involving5 positions of prone, semi-recumbent, side-recumbent, supine and sitting, and 3 738 patients. The prone position compared with the semi-recumbent position, the semi-recumbent position compared with the supine position could reduce the 28-day all-cause mortality of the patient, and the difference was statistically significant ( P<0.05) . Compared with the semi-recumbent position and the supine position, the prone position could reduce the length of time the patient stayed in the ICU, and the difference was statistically significant ( P<0.05) . The prone position could increase the oxygenation index of patients compared with the supine position, and the difference was statistically significant ( P<0.05) . For the total incidence of adverse events and adverse reactions, there was no statistically significant difference between any two positions ( P>0.05) . The network Meta probability ranking of all the outcome indicators showed that the prone position and the side-recumbent position had advantages, and the supine position and the semi-recumbent position had no obvious advantages. Conclusions:Current evidence shows that the prone and side-recumbent position interventions are effective and safe for the treatment of ARDS patients undergoing mechanical ventilation, and are good choices among several positions.

Objective To explore the role of tissue inhibitor of metalloproteinase-1(TIMP-1) during renal senescence by using human TIMP-1 transgenic mice.Methods Renal histological changes of wild type mice and transgenic mice at the age of 3,12,24 months were observed by periodic acid-schiff(PAS)staining of paraffin sections.The numbers of F4/80 positive cells were detected by immunofluoreseence.The protein expressions of TIMP-1,TIMP-2,matrix metalloproteinase(MMP)-9,MMP-2,intercellular adhesion molecule-1(ICAM-1),transforming growth factor?1(TGF-?1),collagenⅢand collagenⅣwere detected by Western blot.The activities of gelatinases and TIMP-1 were examined by gelatin zymography and reverse zymography respectively.Results Focal renal fibrosis was found in two genotypes with aging.At the age of 24 months,compared with wild type,in kidneys of transgenic type,the expressions and activities of gelatinases were dowregulated (MMP-2:2.08?0.20 vs.3.39?0.43;MMP-9:4.02?0.82 vs.6.72?1.40,all P＜0.05);the expressions of collagenⅢ,collagenⅣ,ICAM-1,and TGF-?1 were upragulated(0.72+0.11 vs.0.57?0.09;0.84?0.13 vs.0.6?0.11,0.72?0.12 vs.0.53?0.07; 0.69?0.12 vs.0.45?0.09,all P＜0.05),and the numbers of F4/80 positive cells were increased (18.8?4.4 vs.12.7?3.6,P＜0.05)with the upregulated expression and activity of TIMP-1(1.10?0.18 vs.0.62?0.09;50.75?7.25 vs.20.64?3.50,P＜0.05).Conclusions TIMP-1 could promote age-related renal fibrosis through enhancing inflammation reaction by ICAM-1 upregulation.