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Objective To analyze the infection situation and risk factors of Helicobacter pylori (Hp) in children in Yulin, Shaanxi province. Methods A total of 374 preschool children with digestive tract symptoms in Yulin area from December 2019 to December 2020 were selected. All the research object of personal data by using self-designed questionnaire (gender, age), personal experiences and health habits (common tableware, common koubei brushing your teeth, wash your hands before the rice then empress), the life habits (whether diet, koubei utilities, brushing your teeth regularly to suck finger), socioeconomic status, place of residence, with the number of living, family economic income), caregivers has a history of stomach problems (parents, nanny) And so on. The investigation method is the combination of telephone inquiry and on-site investigation. 3ml fasting venous blood was collected, and the supernatant was centrifuged. Serum IL-17 and IL-10 levels were determined by ENZYme-linked immunosorbent assay, and Treg and Th17 cell levels were determined by flow cytometry. Hp infection was detected by 14C urea breath test. Univariate analysis and logistic regression were used to analyze the independent risk factors of Hp infection in children. Results Eighty-three of the 374 children were infected with Hp, and the infection rate was 22.19%. The levels of Treg and IL-10 in peripheral blood of Hp infected children were significantly lower than those of non-hp infected children (P<0.05). The levels of Th17 and IL-17 in peripheral blood of children with Hp infection were significantly higher than those without Hp infection (P<0.05). In univariate analysis, there were statistically significant differences between the two groups in age, parental education level, per capita monthly income, sharing tableware, sharing toothbrushing cups, washing hands before and after meals, sucking fingers, parents' knowledge of Hp, and caregivers' history of stomach disease (P<0.05). Logistic regression analysis showed that sharing tableware, sharing toothbrushing cups, sucking fingers, parents' lack of knowledge about Hp, and caregivers' history of gastric diseases were independent risk factors for Hp infection in children (P<0.05). Conclusion The infection rate of Hp in children is high, and Hp infection can cause immune system dysfunction in children. It is necessary to take targeted and effective clinical measures to prevent Hp infection.
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Objective To investigate the relationship between plasma Chemerin and diabetic nephropathy of type 2 diabetes mellitus (T2DM).Methods Totally 195 T2DM patients and 65 healthy controls were enrolled in this study.The T2DM patients were further divivded into three subgroups:normal albuminuria group (n =65),microalbuminuria group (n =65),and clinical albuminuria group (n =65).The plasma Chemerin level was determined by enzyme-linked immunosorbent assay (ELISA).Results The serum Chemerin level was (150.20 ±21.99) μg/L in diabetic patients,which was significantly higher than that in healthy controls (62.13 ± 18.90) μg/L) (P ＜0.01).Inside the T2DM group,the plasma Chemerin level was [(143.63 ± 22.33) μg/L] in the microalbuminuria group and [(173.21 ± 23.91) μg/L] in the clinical albuminuria group (P ＜ 0.001),and both were significantly higher than that in the normal albuminuria group [(100.35 ±20.11) μg/L] (both P ＜0.01).Multivariate regression analysis showed that the plasma Chemerin level was independently associated with glycosylated hemoglobin (β =0.216,P =0.038),total cholesterol (β =1.867,P =0.048),high-sensitivity c-reactive protein (β =12.330,P ＜ 0.001),and urine albumin (β =37.184,P ＜0.001) in T2DM patients.Conclusion Plasema Chemerin level increases in T2DM patients and therefore can be a reliable indicator for detecting early type 2 diabetic nephropathy.
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Objective To study the clinical value of nipple discharge detection in the early diagnosis of breast cancer,CA153 ,CEA levels were measured both in nipple discharge and serum. Methods 153 consecutive patients with nipple discharge in Rizhao hospital were studied,among them there were 91 cases with breast cancer and 62 cases with benign disease. The nipple discharged and serum from the 153 cases with nipple discharged were collected and CA153, CEA levels were measured with electrochemiluminescence method. Results The CA153, CEA levels of nipple discharge in breast cancer were significantly higher than the control group(CA153:t =28.949,33.844;CEA:t = 19.773,16.623, all P ＜ 0.01). The positive rate of CA153, CEA in nipple discharge were significantly higher than in the serum (P ＜ 0.05). Conclusion The positive rate of CA153, CEA in nipple discharge were significantly higher than in the serum. The detection of CA153 ,CEA had important value in the early diagnosis of breast cancer.
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Objective To study the diagnosis value and clinical significance of serum sialic acid in malignant tumor. Methods Using enzymic method, the serum sialic acid levels were detected in 50 healthy persons, 90 benign disease patients, 160 malignant tumor patients. The serum sialic acid levels change were analyzed in different pathological types and after relative treatment. Results The serum sialic acid levels and positive ratio in malignant tumor groups were apparently higher than those in normal control and benign disease groups (P<0.01). The serum sialic acid levels in malignant tumor of different pathological types were apparently higher than those in normal control and benign disease groups (P <0.01), while there was no significance between different pathological types (P >0.05). The serum sialic acid levels in the improved patients significantly dropped (P <0.01), while those in the aggravated patients had an ascendent tendency.Conclusion The serum sialic acid has significant value in diagnosis, therapeutic effect and prognosis of malignant tumor.
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OBJECTIVE To investigate the correlative factors and prevention measurements about nosocomial infection of tumor inpatients.METHODS The nosocomial infection correlative factors of 684 tumor inpatients between Jan 2006 to May 2005.were reviewed and analyzed.RESULTS There were 78 infection cases among 684 patients,with the ratio of 11.4%.The infection often happened in a week after admission in hospital,and mostly occurred in respiratory system with a proportion of 67.03%.Pathogenic examination indicated that the main pathogens was conditional pathogens.Furthermore,age,duration in hospital,sicken time,application of chemical therapy,application of antibiotic drug,site of the tumor,malignant grade and nutrition condition,were correlation to nosocomial infection.CONCLUSIONS There is an extremely high infection rate of tumor patients in hospital.All the factors mentioned above should be considered seriously,and take precaution in advance to reduce nosocomial infection.
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Objective To investigate.the co-stimulatory pathway of gastric cancer patients by examining the expression of co-stimulatory molecules CD28,CTLA.4(CDl 52)and B7 molecules on peripheral blood lymphocytes(PBLC)in patients with gastric cancer,and to discuss the role of costimulatory pathway in the pathogenesis of gastric cancer.Methods The expression of CD28,CD152,CD3,CD4,CD8 and B7 molecules on peripheral blood lymphocytes and T cell subpopulation were measured by flow cytometry in 56 patients with gastric cancer,and the data was compared and analyzed with that in gastric benign tumor group and healthy control group.Results The expression levels of CD3+,CD4+,CD3+ CD28+,B7-1(CD80),B7-2(CD86)and CD41/CD8+on PBLC in patients with gastric cancer was significantly lower than that of benign stomach tumor group and healthy control group.The expression levels of CD3+ CDl52+ and CD8+ on PBLC in patients with gastric cancer were significantly higher than those of gastric benign tumor group and healthy control group.Conclusion Peripheral lymphocytcs in gastric cancer patients express low level of CD28 and B7 molecules and high level of CDI 52 molecules,which results in dysfunction of B7:CD28/CTLA-4 co-stimulation pathway and in turn affects the capacity of T cell to eliminate tumor cells,which makes tumor cells evading the immune surveillance and metastasizing.
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Objective To study application of surface plasmon resonance(SIR)system in detection of clinical pathogen with a gene chip.Methods 27 clinical samples were detected by SPR-based gene chip system.These samples were composed by 8 positive blood samples,3 positive pyoid samples,9 positive leucorrhea samples and positive reproductive tract pyoid samples,1 positive biopsy sample and 6 negative biopsy samples.Specific primers and probes for target pathogens were designed by bioinformatics methods and validated by PCR and enzyme-labelled chemiluminescence,respectively.SPR-based gene chip was prepared and utilized to detect clinical samples by SPR system.Results The primers and probes showed good specificity and accuracy,which can be applied to perform PCR and application of the gene chip.Compared with the clinical analysis,gene chip analysis of 26 clinical samples showed the consistent results.Conclusions SPR detection system proved to be accurate and reliable.The chip will have a promising prospect in application.