1.The relationship between LPS-induced iNOS mRNA expression and macrophages cytotoxic function
China Oncology 2001;0(02):-
Purpose:To study LPS induced iNOS mRNA expression and NO production by murine peritoneal macrophages, and their relationship with cytotoxic function of activated macrophages.Methods:LPS induced iNOS mRNA expression, production of NO and effects of activated macrophages on anti tumor were investigated separately by RT PCR, nitrate reductase method and 3HTdR incorporation.Results:LPS can upregulates iNOS mRNA expression in a dose dependent manner. L NIL(specific inhibitors of iNOS) pretreatment significantly reduced cytotoxic effect on the proliferation of HL 60 cells, but had little effect on the K562 tumor target cells on condition that NO production is sufficiently inhibited. Conclusions:LPS can effectively induce iNOS mRNA expression and NO production in murine peritoneal macrophages. NO is one of the important effector molecules in unspecific immunity of activated macrophages, but it plays different roles in cytotoxic effects of macrophages on different target tumor cells.
2.Effect of ubiquitin-proteasome pathway on expression of Smad7 in cultured glomerular mesangial cells induced by high concentration of glucose
Hongyan MA ; Yong XU ; Ling XU ; Jun YANG ; Fen XU
Chinese Journal of Pathophysiology 1986;0(03):-
AIM:To observe the expression of Smad7 and Smad ubiquition regulatory factor-Smurf2 in rat glomerular mesangial cells (GMC) stimulated by the high concentration of glucose,and to investigate the effect of the ubiquition on Smad signaling by adding MG132 as a proteasome differential inhibitor. METHODS:Cultured rat GMC were divided into normal group (the concentration of glucose:5.6 mmol/L),high glucose group (20 mmol/L,30 mmol/L,respectively),therapy group (30 mmol/L glucose with MG132). The expressions of Smurf2 and Smad7 in each group were measured by indirect immunofluorescence and laser scanning confocal microscope. RESULTS:(1) The expression of Smurf2 in GMC in normal group was weak (25.93?3.35) whereas the expression of Smad7 was strong (64.09?7.43). (2) The expression of Smurf2 in high glucose group was stronger than that in normal group (P
3.The correlation among HBV DNA load, HBeAg/Anti-HBe and Alanine Aminotransferase in patients with chronic hepatitis B infection
Chinese Journal of Primary Medicine and Pharmacy 2010;17(14):1877-1878
Objective To explore the relationship among HBV DNA load, HBeAg/Anti-HBe and ALT in patients with chronic hepatitis B infection. Methods HBV markers in 134 patients with chronic HBV infection were detected by ELISA,and patients were divided into group Ⅰ (HBeAg +/Anti-HBe-,43 patients) ,group Ⅱ (HBeAg-/Anti-HBe + ,69 patients)and group Ⅲ (HBeAg-/Anti-Hbe-,22 patients)according to the results of presence of HBeAg/Anti-HBe. HBV DNA load and ALT were tested respectively by fluorescence quantitative polymerase chain reaction technology and successive monitor reaction. Results Both the positive rate and the HBV DNA load quantification in group Ⅰ were higher than in group Ⅱ and Ⅲ (P<0.01). Abnormality rate of ALT in HBV DNA positive patients was higher than the patients with HBV DNA negitive(P<0.01). There was no relationship between HBV DNA load and ALT in HBV DNA positive patients. Conclusion There was a certain corelation among HBV DNA load, HBeAg/Anti-HBe and ALT,but the active degree of HBV replication could not to be assessed by HBeAg/Anti-HBe or ALT alone. It was necessary for the padient with chronic HBV infection to examine them together.
4.Problems and Suggestions for the Novelty Retrieval of TCM
Fengling LI ; Kunjie YANG ; Jun XU
International Journal of Traditional Chinese Medicine 2009;31(4):362-363
The Document Retrieval Center of TCM, founded in 1992, plays an important role in the novelty retrieval of TCM scientific researching projects and clinic researches. But there are still some problems needed to be improved. The author suggests that relative governmental agents and staffs who engage in novelty retrieval should think highly of the novelty retieval of TCM to establish and consummate relative rules and regulations in order to provide the qualified services.
5.Integrative pharmacology: new paradigm of modernization of Chinese medicine.
China Journal of Chinese Materia Medica 2014;39(3):357-362
Chinese medicinal formulae( CMF) were often used in the clinics of traditional Chinese medicine (TCM) which were critical for modernization of Chinese medicine to shed light on the interaction between CMF and biological organisms. In current studies, correlation between system and part, macroscopic actions and microcosmic mechanism, ADME process and pharmacologic actions were often neglected. Thus, we put forward integrative pharmacology, which could integrate the correlation between CMF and biological organisms from multi-levels and multi-dimensional views. Integrative pharmacology would reveal the molecular mechanism of CMF for ailments treatment and screen out effective material systematically, which would be the new paradigm of TCM research.
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Computational Biology
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Tissue Distribution
6.Local decompression and selective interbody fusion with pedicle screw fixation technique for the treatment of degenerative lumbar scoliosis
Chinese Journal of Tissue Engineering Research 2016;20(39):5807-5812
BACKGROUND:Conservative treatment is mostly invalid in treatment of severe degenerative lumbar scoliosis-induced low back pain, so surgical intervention is general y required. Repair methods are decompression, rigid fixation, and selective interbody fusion for the“responsible vertebra”to re-establish normal lumbar curvature, spinal balance and good stability. OBJECTIVE:To investigate clinical curative effect of local decompression and selective interbody fusion with pedicle screw fixation technique for the treatment of degenerative lumbar scoliosis. METHODS:Data of 57 cases of degenerative lumbar scoliosis from Armed Police Corps Hospital of Hunan Province from January 2011 to January 2014 were retrospectively analyzed. According to clinical characteristics of the patients, selective fusion, local decompression and pedicle screw fixation were used for repair. The imaging analysis and Suk criteria were used to evaluate fixation, decompression and bone fusion. Japanese Orthopaedic Association scores were utilized to assess therapeutic effect. RESULTS AND CONCLUSION:(1) Operation time was 157-255 minutes, averagely 176 minutes. Amount of bleeding was 480-1 700 mL, averagely 835 mL. Postoperative drainage volume was 140-210 mL, averagely 155 mL. (2) 57 patients were fol owed up for 12-38 months. Postoperative X-ray revealed that Cobb’s angle was (3.8±2.1)° on the coronal plane after treatment, and the correction rate of lordosis was 54%. The sagittal Cobb’s angle was (6.3±10.5)°, and the correction rate of lordosis was 35%. According to Suk standard, the fusion rate of vertebra was 95%. According to low back pain score system recommended by Japanese Orthopaedic Association scores, the effective rate was 91%at the end of fol ow-up. (3) There were 2 cases of cerebrospinal fluid leakage, 1 case of nerve injury, and 1 case of pedicle screw failure, no infection, no blood vessel injury. (4) These findings suggest that according to imaging data and self clinical features, local decompression and selective interbody fusion with pedicle screw fixation technique for the treatment of degenerative lumbar scoliosis can rebuild and stabilize degenerative lumbar scoliosis in the coronal and sagittal planes to different degrees, with satisfactory clinical curative effect.
7.Review on studies of acupuncture treatment for luteinized unruptured follicle syndrome
Journal of Acupuncture and Tuina Science 2015;(6):398-404
Luteinized unruptured follicle syndrome (LUFS), a specific type of ovulation disorder, is for a cause of female infertility. Acupuncture therapy has a good effect for LUFS. In order to understand the clinical effects and research situation of acupuncture therapy for LUFS, the author analyzed and reviewed the relevant literature. It was indicated by the findings that acupuncture therapy and integrative therapy of acupuncture and Chinese herbs have good therapeutic effect for this disease. Acupuncture therapy has the effect to promote ovulation. By the therapeutic principle to tonify the kidney and circulate blood, acupuncture therapy mostly was adopted in the period of ovulation. The acupoints are mostly selected from the lower abdomen and lower limbs, possibly based upon syndrome differentiation at the same time. The needling techniques are of certain characteristics. But, the issues of low quality, un-standardized inclusive, exclusive criteria and effective criteria still exist in the current clinical study.
8.Influences of Indoor and Outdoor Sources of Air Pollutants on Concentrations of NO _2 in Indoor Air
Jun XIE ; Xiaolan DU ; Yang XU
Journal of Environment and Health 1989;0(06):-
Objective To explore the influences of indoor and outdoor sources of air pollutants on NO 2 concentra tions in indoor air.Methods The dynamic variations of NO 2 concentrations in indoor and outdoor air were continuously monitered by ML 9841B chemiluminescence continuous monitoring analyzer in2families of White haven town of west Cumbrra,UK.Results During the period of indoor air monitoring,typical background concentrations of NO 2 in air in the center of White haven were between19and28?g /m 3 (10min-mean),and rose to38-47?g /m 3 (10min-mean)during the morning and evening rush of traffic.NO 2 concentration increased about 190?g /m 3 (10min-mean)after the use of a gas cooker in the kitchen A1-hour mean concentration of253?g /m 3 was recorded in the kitchen air of one of the houses,which substantially exceeded the NAQS standard of200?g /m 3 .Conclusion The increase of NO 2 concentration in kitchen air induced by the use of gas appliances played a more important role in influencing the indoor air quality than outdoor air did.
9.The possible mechanism of the acute lung injury induced by S protein of SARS-CoV
Guohua YAO ; Xinyan YANG ; Jun XU
Journal of Medical Postgraduates 2003;0(08):-
Objective: To investigate the role of the recombinant S protein of SARS-CoV in the induction of chemokine IP-10 and other cytokines in airway epithelial cells and immunocytes. Methods: Using insect-baculovirus expression system and Nickel affinity Magnet Beads, S protein of SARS-CoV was produced and then used to stimulate cultured human bronchial epithelial cells (16HBE), human peripheral blood mononuclear cells(PBMC), human peripheral blood monocytes and alveolar macrophages. The levels of IP-10 and the cytokines involved in immunoreaction in response to virus infection were detected in the supernatants of those cells cultured with the S protein by liquid chip system. Results: Under normal condition, no detectable IP-10 was found in 16HBE. A high level of IP-10(79.97? 13.81) pg/ml was detected in the 16HBE 12 hrs after being treated with the S protein, and the induction of IP-10 by S protein displayed at a significant quantity-effect reaction, but not in PBMC, monocytes and alveolar macrophages. In contrast, IFN-? was able to induce the production of IP-10 in either 16HBE or the immunocytes. Conclusion: 1.S protein of SARS-CoV can induce a high level of IP-10 in lung epithelial cells at early stage after the virus infection, which may initiate the process of the immune damage in the lung. 2. S protein of SARS-CoV induces the production of IP-10 by a way of IFN-? independent.
10.Anatomic features of intercostal nerves with relation to TRAM and DIEP breast reconstruction
Xiaolei JIN ; Jun XU ; Hongyan YANG
Chinese Journal of Medical Aesthetics and Cosmetology 2001;0(03):-
Objective To supply anatomic foundation for TRAM and DIEP flaps breast reconstruction with both sensory innervation and rectus abdominis muscle function preserved. Methods Dissections of T8~T12 nerves in anterior abdominal wall were performed on 9 embalmed female cadavers (18 sides). By reconstructing DIEP flaps in 15 cases, the natures of the intercostal nerves and the relations with deep inferior epigastric perforators were investigated. Results Most intercostal nerves pierced the rectus abdominis muscle in the lateral one third. There were interconnections between muscular branches of segmental nerves. Sensory branches traveling with vascular perforators were divided into medial branch and lateral branch. The mean length of pure sensory nerve was (27.6?12.2)mm. Conclusion It is possible to preserve sensory innervation by coapting lower intercostal nerves to the 4th thoracic nerve in TRAM and DIEP breast reconstruction. Sparing lateral one third of rectus abdominis muscle does not cause denervated atrophy in the rectus abdominis muscle after TRAM breast reconstruction.