OBJECTIVE: To investigate whether the allergic factors impact the severity of chronic rhinosinusitis or not, further more, to explore the relationship between allergic rhinitis and chronic rhinosinusitis. METHOD: A retrospective review was done on 103 patients. All of these patients were under functional intranasal endoscopic sinus surgery after expectant treatment is ineffective. We devided the patients into different groups according to the result of skin prick and specific IgE and if there is difference in VAS score, Lund and Kennedy endoscopic score, Lund-Mackay CT score between the groups. We also analysed the symptoms in different chronic rhinosinusitis patients allerged to variant kinds of allergen. The SPSS 17.0 software was used to analyze the data. Statistical analysis was performed by t-test, rank order test or χ2 test. RESULT: The duration of the disease, VAS score of nasal blockage, score of Lund-Mackay CT and Lund and Kennedy endoscopic before the operation were in no statistical sense after when compared with the two groups of patients with chronic rhiriosinusitis who grouped according the result of skin prick and specific IgE. The VAS score of facial pressure and loss of smell was higher in patients with chronic rhinosinusitis which the skin prick and specific IgE were positive. The VAS score of nasal discharge was higher in patients with chronic rhinosinusitis who got negative skin prick and specific IgE result. The symptoms of chronic rhinosinusitis improved with operation no matter the group of skin prick and specific IgE positive or negative and VAS score of nasal blockage improved significantly in negative group. The symptoms of sneezing, rhinorrhoea and rhinocnesmus improved after operation among the chronic rhinosinusitis patients with skin prick and specific IgE. The number of cockroach allergy is larger among the patients with chronic rhinosinusitis without polyps than the one among the patients with chronic rhinosinusitis with polyps. CONCLUSION Allergic factor didn't impact much the severity of chronic rhinosinusitis patients who were failed in expectant treatment, besidesthe postoperative outcomes showed that only influence the severity of nasal discharge, facial pressure and loss of smell. Different kinds of allergen were found between the patients of chronic rhinosinusitis with or without polyps. No significantly functional endoscopic sinusitis sugrery outcome were related to the allergic factor. But the allergic factor may interfere the remission of nasal discharge after surgery.
Administration, Intranasal ; Allergens ; Chronic Disease ; Endoscopy ; Humans ; Nasal Obstruction ; Nasal Polyps ; surgery ; Polyps ; Postoperative Period ; Retrospective Studies ; Rhinitis ; immunology ; surgery ; Rhinitis, Allergic ; surgery ; Sinusitis

China ; History, 20th Century ; History, 21st Century ; Pathology ; Periodicals as Topic ; history

In this study,we discussed the way of imparting the microbial knowledge and elevating non-biological student's science in public optional course "Microbes and Man" from the teaching practice.During the course,we first chose the material according to students' characteristic,and then introduced several methods like lecturing on subject,visiting factories and making microbial experiments in order to inter-est students in microbiology and get better in teaching effects.

AIMTo establish a fluorospectrophotometric assay for the measurement of nitrite in blood.

METHODSInterference from hemoglobin and other blood ingredients was removed through sulfuric acid and phosphotungstic acid pretreatment. Fluorescence of 1-[H]-naphthotriazole from the reaction of 2,3-diaminonaphthalene with nitrite was determined with fluorospectrophotometry.

RESULTSThe following conditions were proper: Serum or plasma was treated with sulfuric acid and phosphotungstic acid pretreatment for two times, 2,3-diaminonaphthalene of 0.63 mmol x (L(-1)) was used, reaction solution pH and final pH were about 1.60 and 1.70 respectively, solution containing 2,3-diaminonaphthalene and supernatant after pretreatment was water-bathed at 20 degrees C for 15 minutes. The lower limit of detection was 24.27 nmol x L(-1). Nitrite determined in peripheral blood of healthy people was (10.91 +/- 2.38) micromol x L(-1), and its 95% distribution range was (6.24-15.57) micromol x L(-1).

CONCLUSIONIt's a relatively sensitive, specific, simple method. It's of some value to the study of nitric oxide.

Fluorophotometry ; Humans ; Limit of Detection ; Nitrites ; blood

Objective To compare the effect of alkaline and neutral multi-enzyme cleanser cleaning and reuse of bone through the needle. Methods 200 pollution recycling reusable bone needle, were randomly divided into two groups. The control group was washed with neutral multienzyme detergent, the ratio was 1/270. The experimental group was cleaned by alkaline multienzyme detergent, with a ratio of 1/270. A comparative analysis of the surface cleaning of the experimental group and control group, the qualified rate of strip inspection pass rate and needle cavity wall cleaning qualified rate and other indicators. Results After cleaning with different cleaning agents, the number of qualified surface cleaning of the experimental group was 98 pieces, and the number of qualified surface cleaning of the control group was 97 pieces, he qualified rate of the surface cleaning of the experimental group and the control group was 98.0% and 97.0%, and there was no statistical difference. In the experimental group, the number of the cleaning of the needle cavity wall was 96, and the number of qualified cleaning of the needle cavity wall was 88. In the control group, the qualified rate of the cleaning of the needle cavity wall was 88.0%, significantly lower than that of the experimental group, and the qualified rate of cleaning was 96.0%, which was statistically significant (P<0.05). The experimental group strip inspection pass rate of 95.0%was significantly higher than the control group of qualified rate was 86.0%, with statistical difference (P<0.05). Conclusion Alkaline multi enzyme cleaning agent compared with neutral multi enzyme cleaning agent, reusable bone needle cleaning effect is more ideal, to ensure the cleaning and sterilization quality, improve the service life.

This study was aimed to investigate the effect of berberine on the proliferation and apoptosis of HL-60 cells, and the expression of vascular endothelial growth factor receptor 2 (VEGFR2) in HL-60 cells. Berberine (6 - 96 µg/ml) was added to the HL-60 cell line culture medium, the CCK-8 method was used to reveal the inhibitory effect on cell proliferation, the flow cytometry was used to determine the apoptosis rate and cell cycle in HL-60 cells treated with berberine. The expression of VEGFR2 mRNA and protein were examined by RT-PCR and Western blot respectively. The results showed that the berberine inhibited the proliferation of HL-60 cells and induced their apoptosis in dose- and time-dependent manners. With the increased concentration of berberine, the percentage of HL-60 cells in G(1) phase of cycle increased significantly, and the percentage of HL-60 cells in S phase decreased significantly. The expression of mRNA and protein of VEGFR2 decreased with the increased concentration of berberine. It is concluded that the berberine can inhibit HL-60 cell proliferation and induce HL-60 cell apoptosis. The expression of mRNA and proteins of VEGFR2 decreased after treatment with berberine.
Apoptosis ; drug effects ; Berberine ; pharmacology ; Cell Proliferation ; drug effects ; Flow Cytometry ; Gene Expression Regulation, Leukemic ; HL-60 Cells ; Humans ; Vascular Endothelial Growth Factor Receptor-2 ; metabolism

When the glomerular mesangial cells of rats were cultured in vitro at high glucose concentration,the activity of extraeellular signal-regulated kinase(ERK),the expression of transforming growth factor-?_1(TGF-?_1)mRNA and the content of typeⅣcollagen in the supematant were higher than those at normal glucose concentration.These effects were inhibited by fluvastatin.The results showed that the activation of ERK signal transduction pathways appeared to play a role in the onset and progression of diabetic nephropathy. Furthermore,fluvastatin could protect the kidney by inhibiting ERK signal transduction pathway and TGF-?_1 expression.

The aim of this study was to detect the nerve growth factor (NGF) level in serum and NGF low affinity acceptor CD271 expression on bone marrow leukemic cells in acute B lymphoid leukemia (B-ALL) patients and to analyze their clinical significance. The NGF level in serum and CD271 expression on leukemic cells in bone marrow were detected by enzyme linked immunosorbent assay and flow cytometry in B-ALL patients respectively. The results indicated that compared with control group, the NGF level in serum of patient group significantly increased (t = 4.191, p < 0.05), but CD271 expression on leukemic cells in bone marrow decreased significantly (t = 4.898, p < 0.05). The complete remission (CR) rate of 25 B-ALL patients was 64% (16/25) after one course of CVAD chemotherapy. There were statistically significant differences of NGF level and CD271 expression in non-remission (NR) group and control group (t = 3.976, p < 0.05 vs t = 5.052, p < 0.05), but there were no statistically difference of NGF level and CD271 expression in CR group (t = 1.102, p > 0.05 vs t = 1.150, p > 0.05) as compared with control group. The CD271 expression before and after chemotherapy between CR and NR groups showed statistically significant differences (t = 3.889, p < 0.05; t = 3.751, p < 0.05 and t = 4.678, p < 0.05 respectively), but NGF level before and after chemotherapy showed no statistical difference between these 2 groups (t = 0.476, p > 0.05). 50% (8/16) patients relapsed during following up, and of their NGF level [(168.00 ± 61.66) pg/ml] and CD271 expression [(52.29 ± 13.00)%] showed the significantly differences, compared with those in control group (t = 5.284, p < 0.05 vs. t = 6.073, p < 0.05), but the NGF level [(81.13 ± 25.32) pg/ml] and CD271 expression [(78.45 ± 7.12)%] of other 8 patients showed no statistical difference as compared with control group (t = 1.228, p > 0.05 vs t = 1.144, p > 0.05). Compared with low NGF level and CD271 low expression groups, the survival time of B-ALL patients with high NGF level and CD271 expression was not changed significantly (p = 0.750 vs p = 0.170). It is concluded that the increased NGF level in serum and decreased CD271 expression on bone marrow leukemic cells in B-ALL patients are related with leukemia development and may be the useful indexes to evaluate curative effect and prognosis.
Adolescent ; Adult ; Aged ; Bone Marrow Cells ; metabolism ; Case-Control Studies ; Child ; Child, Preschool ; Female ; Humans ; Male ; Middle Aged ; Nerve Growth Factor ; blood ; Nerve Tissue Proteins ; metabolism ; Precursor Cell Lymphoblastic Leukemia-Lymphoma ; blood ; metabolism ; Receptors, Nerve Growth Factor ; metabolism ; Young Adult

OBJECTIVETo observe the effect of Wnt3a-transduced mouse bone marrow mesenchymal stem cells (MSC) on the proliferation of T lymphocytes.

METHODSMSC were isolated from C57BL/6 mouse bone marrow and expanded in vitro, then identified by flow cytometry and their differentiation capacity into osteocytes and adipocytes were determined. Recombinant plasmids containing Wnt3a gene, were transfected with lipofectamine into HEK293 cells by the AdEasy system. Viral particles were collected to infect MSC and adenovirus vector expressing GFP (Ad-GFP) was used as control. The expression of GFP in MSC was observed using fluorescence microscopy and the protein levels of Wnt3a and β-catenin were determined by Western blot. Wnt3a-transduced and Ad-GFP transduced MSC were separately cocultured with spleen lymphocytes stimulated by ConA, at the ratio of 1:100, 1:50 or 1:10 respectively. The proliferation rate of T lymphocytes was estimated by Cell Cout Kit-8 (CCK-8) and the level of cytokine by ELISA.

RESULTSFCM analysis showed that the MSC were highly positive for CD90.2, CD44 and negative for CD34, CD45, they could differentiate into osteoblasts and adipocytes after induction; The titer of recombinant adenoviruses was up to 1 × 10(10) pfu/ml. After infected with the adenoviruses, MSC had the strongest GFP expression at 72 h and the efficiency of infection was 50%-60%. The expressions of Wnt3a and β-catenin protein in the Wnt3a-transduced MSC were significantly increased. MSC could suppress the proliferation of T lymphocytes in a dose-dependent manner. When MSC cocultured with spleen lymphocytes at 1:10 ratio, T lymphocyte proliferation rate and the level of IFN-γ were (55.41 ± 1.75)% and (326.70 ± 14.41) pg/ml respectively in Ad-GFP transduced MSC group, while in Wnt3a-transduced MSC group, they were (37.27 ± 2.66)% and (218.80 ± 12.93) pg/ml respectively. There was no effect on the production of IL-2.

CONCLUSIONCompared to Ad-GFP transduced MSC, Wnt3a-transduced MSC exhibit a more potent inhibitory effect on the proliferation of T lymphocytes.

Animals ; Bone Marrow Cells ; cytology ; metabolism ; Cell Differentiation ; Cell Proliferation ; Female ; Lymphocyte Activation ; Mesenchymal Stromal Cells ; cytology ; metabolism ; Mice ; Mice, Inbred BALB C ; Mice, Inbred C57BL ; T-Lymphocytes ; cytology ; Transduction, Genetic ; methods ; Wnt3A Protein ; genetics ; metabolism

Atrioventricular Block ; etiology ; Cardiac Catheterization ; adverse effects ; Heart Septal Defects, Ventricular ; therapy ; Hematologic Diseases ; etiology ; Hemolysis ; Humans