1.Detection methods and clinical significance of chimerism after hematopoieticstem cell transplation
Journal of International Oncology 2010;37(8):626-629
Sequential monitoring of chimerism after hematopoietic stem cell transplantation is important for disease prognosis, improving transplantation success rate, and reducing relapses of the original diseases. The application of molecular genetic markers in combination with quantitative PCR to the assessment of chimerism,in particularly the dynamic quantitative analysis of lineage-specific chimerism, can provide important guidance for clinical practice.
2.Expression of nitric oxide in uterine junctional zone of patients with adenomyosis
Jingjing LIU ; Hua DUAN ; Sha WANG
Chinese Journal of Obstetrics and Gynecology 2013;48(7):504-507
Objective To investigate the relationship between nitric oxide and contractile disfunction of junctional zone of smooth muscle by detecting the expression of nitric oxide in uterine junctional zone in patients with adenomyosis.Methods From February 2012 to July 2012,23 patients with adenomyosis undergoing hysterectomy as adenomyosis group matched as 16 patients with cervical carcinoma or ovarian cancer were enrolled as control group in Center of Minimally Invasive Gynecology,Beijing Obstetrics and Gynecology Hospital.Location of nitric oxide synthase (inducible NOS and endothelial NOS) in uterine junctional zone was analyzed by immunohistochemistry.Smooth muscle cells of junctional zone were cultured and cellular mRNA levels of nitric oxide synthase were detected by real-time polymerase chain reaction.Furthermore,concentration of nitrites in lysates of fresh junctional zone tissues and cultured cells were determined by Griess reaction.Results (1) The expression of nitric oxide synthase proteins in smooth muscle cells of junctional zone tissues:the staining of iNOS was intensive in smooth muscle cells of junctional zone in patients with adenomyosis,while staining of eNOS was scant.Both staining of iNOS and eNOS were not observed in control group.(2) The expression of NOS genes in cultured smooth muscle cells from adenomyosis:mRNA level of iNOS was elevated by 1.5 times (P <0.01) while eNOS level was reduced by 2.6 times when compared with those in control groups (P < 0.05).(3) Nitrites concentration in lysates of junctional zone tissues and cultured cells:concentrations of nitrites in lysates of 100 mg tissues were respectively (37 ± 8) μmol/L and (28 ± 5) μmol/L in adenomyosis and control group (P > 0.05).While concentrations of nitrites in 1 × 106 cells were respectively (11.8 ± 0.6) μmol/L and (10.8 ± 1.5) μmol/Lin adenomyosis and control group,which did not reach statistical difference (P > 0.05).Conclusion Upregulation of nitric oxide might be associated with contractile disfunction of smooth muscle cells in uterine junctional zone of patients with adenomyosis.
3.Research on Clinical Application of Vinpocetine Injection
Jingjing XU ; Jiali BAI ; Jinju DUAN
China Pharmacist 2016;19(5):928-930
Objective:To investigate the clinical application and adverse events of vinpocetine injection. Methods:The application of vinpocetine injection in the patients in neurology department during December 2013 and December 2014 in a hospital was statistically analyzed. The adverse reactions of the injection reported in the professional literatures and relevant documents were also retrieved and statistically analyzed. Results:The infusion concentration of vinpocetine injection for 363 patients was more than 0. 06 mg·ml -1 ,and 3 cases of adverse reactions appeared with the main symptoms of rash and drug fever. Among 28 published literatures,19 articles were with the infusion concentration of vinpocetine injection above 0. 06 mg·ml-1 and 8 articles reported adverse reactions in varying degrees. Conclusion:Clinicians should pay attention to the instructions in the clinical course of medication in order to improve the safe and rational use of drugs.
4.Pillbug extracts inhibit osteopontin-induced vascular smooth muscle cell proliferation by modulation of integrin kinase protein pathway
Zheping DUAN ; Xinjiang YU ; Jingjing LI ; Juan ZHAO
Chinese Journal of Tissue Engineering Research 2017;21(16):2582-2586
BACKGROUND: Pillbugs have been proved to exert an effect on the proliferation and migration of vascular smooth muscle cells (VSMCs) through MTT assay and scratch assay, but the mechanisms are poorly understood. OBJECTIVE: To investigate the molecular mechanisms underlying pillbugs influencing osteopontin-induced VSMC migration and proliferation. METHODS: VSMCs from Sprague-Dawley rat thoraco-abdominal aorta were cultured in a common medium, and 3-5 generations of cells were selected. There were eight groups: control, osteopontin, pillbug water extract (0.5, 1.0, and 2.0 g/L) with osteopontin, and pillbug ethyl acetate extract (0.25, 0.5, and 1.0 g/L) with osteopontin groups. After 24 hours of culture, the expression levels of proliferating cell nuclear antigen (PCNA) and integrin kinase (ILK) were detected by western blot assay. RESULTS AND CONCLUSION: Pillbug water and ethyl acetate extracts both inhibited the expression of PCNA, especially when cultured in 0.5 g/L pillbug water extract (77.8% of the osteopontin group) and 1.0 g/L ethyl acetate extract (74.1% of the osteopontin group). 0.5 g/L pillbug water extract significantly downregulated ILK level induced by osteopontin, which was 81.4% of the osteopontin group, while pillbug ethyl acetate extract exposed no influence on ILK expression. These results reveal that pillbug water and ethyl acetate extracts both are able to inhibit osteopontin-induced VSMC proliferation, and the role of the pillbug water extract maybe associated with ILK protein pathway.
5.Clinical significance of cyclooxygenase-2 and BCRP expressions in non-Hodgkin lymphoma
Yongfeng ZHAO ; Liping SU ; Meijing ZHENG ; Jingjing DUAN
Journal of Leukemia & Lymphoma 2010;19(8):483-485
Objective To investigate the correlation and significance of cyclooxygenase-2 (COX-2)and the breast cancer resistance protein (BCRP) expressions in non-Hodgkin lymphoma(NHL). Methods Ten patients with reactive lymph nodes (RLN) were considered as a control group. Compared with β-actin as internal control, the BCRP mRNA expressions of 61 NHL samples and 10 lymph tissues in control group were detected by semi-quantitative revere transcription polymerase chain reaction (RT-PCR) assay, while the expressions of COX-2 protein of the above specimens were detected by SP immunohistochemistry. Results The positive rates of COX-2 and BCRP in NHL were 50.8 %(31/61) and 45.8 % (28/61), respectively , and were higher than those in the control group (P <0.05). The expression of COX-2 was statistically positive correlated to that of BCRP (X2 =8.795, r=0.355, P<0.05). The expressions of COX-2 and BCRP were not correlated to clinical and pathological factors, such as age, sex, IPI, LDH, β2-microglobulin level and Ann Arbor stage, however, the expression of BCRP was statistically correlated to chemotherapy efficacy.Conclusion BCRP may be involved in multi-drug resistance (MDR) of NHL, so it may contribute to the assessment of chemotherapy and prediction of NHL. Since there is a strong correlation between COX-2 expression and MDR in NHL, the application of COX-2 inhibitors may enhance sensitivity of chemotherapy.
6.Effect of Gemcitabine on viability and apoptosis of non-small cell lung cancer HCC827 in vitro
Jingjing ZHANG ; Qingwei ZHAO ; Jingrui YANG ; Juhong DUAN ; Haichuan YU
Chinese Journal of Immunology 2016;32(10):1450-1453
Objective:To observe the effect of Gemcitabine ( GEM) on the viability and apoptosis of non-small cell lung cancer HCC827 in vitro. Methods:The cell viability,apoptosis and cell cycle of HCC827 cells induced by Gemcitabine were detected with cell counting kit-8 assay (CCK-8),Annexin V-FITC/PI staining and flow cytometry. The expression of Bcl-2 protein of cells treated with GEM was examined by Western blot assay. Results: There was significant inhibition effect on HCC827 cells treated with 0. 1-1 000 ng/ml of GEM,which can promote the occurrence of HCC827 cell apoptosis and arrest cell in the S phrase. The apoptosis induced by GEM was accompanied with the down regulation of Bcl-2 protein. Conclusion: GEM can inhibit the cell viability and induce the HCC827 cell apoptosis and S phrase arrest. Its cell dead type was apoptosis,which was related with the expression of Bcl-2 protein.
7.Effects of Oxidative Challenge on Defensive Enzyme and Cofactors Level in Alkalibacterium sp.F26
Jingjing DUAN ; Liming LIU ; Zhaozhe HUA ; Jian CHEN
Microbiology 2008;35(9):1385-1392
In this paper,a slight halophilic alkaliphile swain,Alkalibacterium sp.F26,which produced high level of intracellular CAT observed in previous research,was selected as a model microbial to explain the responses of this bacterium to oxidative stress.The results indicated that Alkalibacterium sp.F26 had obvious responses to higher concentration (>1 mmol/L) of H2O2 than that to lower H2O2 (<1 mmol/L) challenge from the aspects of defensive enzyme synthesis and cofactors level variation.As for catalase production,the activity increased up to 106.54 U/rag protein which was 1.76 fold of the control when cells were challenged by 3 mmol/L H2O2,but its activity only was 1.13 fold when H2P2 was 100 μmol/L.As far as energy state was concerned,ATP production and NAD+ generation were significantly inhibited from 20.55 μmol/L to 17.80 μmol/L and 69.89 μmol/L to 31.77 μmol/L,respectively,leading to the drop of energy charge from 0.77 to 0.68 and the increase of the portion of NADH/NAD+ from 0.08 to 0.41 in the former case.However,these effects were less distinct under lower concentration of H2O2.Except of the condition of 100 μmol/L H2O2,under which the activation of defensive mechanism resulted in an increase of ATE the level of ATP dropped from 22.69 μmol/L of the control to 22.38 μmol/L and 13.70 μmol/L when challenged by 50 μmol/L and 500 μmol/L H2O2.Besides,the concentration of NADH fluctuated and the NAD+ gradually reduced when H2O2 below 1 mmol/L.
8.Influence of mild extrapyramidal signs on the living ability of the aged and nursing countermeasures
Jinping LI ; Ruihong ZHENG ; Jingjing WU ; Lihui DUAN
Journal of Medical Postgraduates 2003;0(05):-
Objective: To explore the influence of mild extrapyramidal signs(EPS) on the ability of daily living(ADL) of aged people and the countermeasures in nursing.Methods: We recruited 131 aged people without overt neurologoical diseases,rated their EPS and ADL according to an abbreviated version of the motor portion of the Unified Parkinson's Disease Rating Scale(UPDRS) and assessed the influence of EPS on ADL by logistic regression analysis.Results: Those with EPS were significantly more advanced in years(P
9.Cognitive function in women with hypertensive disorders complicating pregnancy:A follow-up study
Jinxia LIU ; Lihui DUAN ; Jingjing WU ; Miao YU ; Yuanzhe WU
Journal of Medical Postgraduates 2003;0(11):-
Objectives: Hypertensive disorders complicating pregnancy(HDCP) has a long-term deleterious effect.This study aimed to investigate the changes of cognitive function in women with HDCP and explore their possible mechanism.Methods: Fifty-three patients with HDCP and 22 normal pregnant women were included in this study,their cognitive functions assessed 60-80 days after delivery by word learning and delayed recall test,symbol digit substitution test,animal category fluency test,block design,trail making test(Part A) and digit span test.The results of the cognitive tests were compared between the HDCP and normal control groups.Results: Cognitive performances of the severe preeclampsia patients differed significantly from those of the normal individuals on the tests of word learning(P
10.Application of sorting peripheral blood cells by flow cytometry in the detection of peripheral Mood cell sorting
Meijing ZHENG ; Jingjing DUAN ; Liping SU ; Yanfeng WANG ; Wen SU
Journal of Leukemia & Lymphoma 2010;19(3):159-160,165
Objective To apply fluo-rescencc-activated cell sorting(FACS) in sorting T lymphocyte (CD_3~+) and granulocyte (CD_(15)~+), which establish the separating method of series of cells from human peripheral blood, so that the scientific research and clinical research could be carried out were specifically. Methods 10 cases of normal peripheral blood were collected and T lymphocyte (CD_3~+) and granulocyte (CD_(15)~+) were stained with florescence conjugated antibodies. The positive cells were sorted by FACS. Results Before sorting the peripheral blood, the proportion of the T lymphocyte(CD_3~+) and granulocyte (CD_(15)~+) in the leukocyte is 48.8 % and 30.8 %; after sorting by FACS, the purity of T lymphocytes (CD_3~+) is up to 98 % and the recovery is about 95 %; the purity of granulocyte (CD_(15)~+) is up to 97 % and the recovery is about 96 %. Conclusion The FACS could Mlow us to quickly sort T lymphocyte (CD_3~+) and granulocyte (CD_(15)~+) with higher recovery and higher purity from the peripheral blood.