1.The anti-tumor molecular mechanisms of non-steroid anti-inflammatory drugs
Xian-Da REN ; Yan-Qing LV ; Kai-He YE ; Shao-Hui CAI ; Chun-Ling YE ;
Chinese Pharmacological Bulletin 1986;0(05):-
This review introduced the anti-tumor effects of non-steroid anti-inflammatory drugs (NSAIDs) and summarized their possible molecular mechanisms according to recent abroad literatures and our research results. Some evidence showed that the anti-tumor mechanisms of NSAIDs were different in various tumors.NSAIDs decreased the biosynthesis of PGE_2 and regulated the expressions of downstream correlated genes and proteins through restraining abnormal expression of COX-2 in certain neoplasms,which resulted in the inhibition of tumor angiogenesis and proliferation as well as induced apoptosis. But in other cancer cells, NSAIDs, as activators of peroxisome proliferator-activated receptor ? (PPAR?), induced COX-2 expression, promoted the biosynthesis of cyclopentenone prostaglandins (cyPGs). cyPGs further induced tumor cell apoptosis with PPAR? dependently or PPAR? independently. Since their special mechanisms of anti-proliferation and pro-apoptosis, NSAIDs revealed significant synergistic effects with other anti-tumor treatments.
2.Characterization of Aminoacylase in the Mycelial Cell of Cunnighamella echinulata
Da-Xiang GAO ; Zhao-Lan LI ; Li-Yun GUO ; Qing-Cai JIAO ;
Microbiology 1992;0(04):-
The strain of Cunninghamella echinulata 9980 was first selected with high aminoacylase activity . In three submerged cultures, the aminoacylase activity in the mycelial cell was compared . A number of factors have effects on the resolution reaction. The results showed that, peptone culture gave the highest aminoacylase activity with 680U/g.The optium temperature,pH,and substrate concentration were 55℃, 7.0,and 0.2mol/L,respectively. The ions in the buffer lowered the activity,but the Co~(2+) in 10~(-4)~10~(-3 )mol/L was necessary for its activity.
3.Effect of phospholipomannan of Candida albicans on the production of interleukin 6 and interleukin 8 in monocytes.
Qing CHEN ; Min LI ; Rong-cai TANG ; Wei-da LIU ; Wu-qing ZHOU ; Yong-nian SHEN ; Gui-xia LV
Acta Academiae Medicinae Sinicae 2011;33(4):371-374
OBJECTIVETo investigate whether Candida albicans-native phospholipomannan (PLM) induce an inflammation response through Toll-like receptor(TLRé2 in human acute monocytic leukemia cell line (THP-1) cells.
METHODSHuman THP-1 monocytes were challenged with PLM in vitro. The mRNA expressions of TLR2, TLR4, proinflammatory cytokine [interleukin(IL)-6], and chemokine (IL-8) were assayed by real time reverse transcription polymerase chain reaction. The secretions of IL-6 and IL-8 were measured by enzyme-linked immunosorbent assay. The expression of TLR2 was analyzed with Western blot.
RESULTSPLM increased the mRNA expressions and secretions of proinflammatory cytokines (IL-6) and chemokines (IL-8) in THP-1 cells (all P=0.0000). PLM up-regulated the mRNA and protein levels of TLR2 (P=0.0000), whereas the mRNA level of TLR4 was not altered. PLM hydrolyzed with β-D-mannoside manno hydrolase failed to induce gene and protein expressions of TLR2, IL-6, and IL-8. Anti-TLRS-neutralizing antibody blocked the PLM-induced secretions of IL-6 and IL-8 in THP-1 cells (P = 0.0003, P = 0.0010).
CONCLUSIONCanidada albicans-native PLM may contribute to the inflammatory responses during Candida infection in a TLR2-dependent manner.
Candida albicans ; chemistry ; Cells, Cultured ; Glycolipids ; pharmacology ; Humans ; Interleukin-6 ; metabolism ; Interleukin-8 ; metabolism ; Monocytes ; drug effects ; immunology ; metabolism ; Toll-Like Receptor 2 ; metabolism ; Toll-Like Receptor 4 ; metabolism
4.Prenatal restraint stress decreases neurogranin expression in rat offspring hippocampus.
Hui LI ; Qing-Hong LI ; Zhong-Liang ZHU ; Rui CHEN ; Da-Xin CHENG ; Qing CAI ; Ning JIA ; Liang SONG
Acta Physiologica Sinica 2007;59(3):299-304
Neurogranin, a neuron-specific postsynaptic protein, has been considered to play an important role in synaptic plasticity and learning and memory. The present study aimed to investigate the effects of prenatal restraint stress on neurogranin expression in rat offspring hippocampus. Pregnant rats were given a restraint stress (3 times a day for 7 d, 45 min each time) at the late stage of gestation except that in the control group. The offspring rats were divided into four groups: female control group, male control group, female stress group and male stress group. Expression of neurogranin was determined by immunohistochemistry and Western blot. The results showed that neurogranin-positive immunostaining was detected in all areas of the hippocampus. The staining density was stronger in the CA1 and CA3 regions than that in the dentate gyrus (DG) region. Western blot assay showed that neurogranin protein level in female and male prenatal stressed offspring was significantly lower than that in the controls (P<0.01). Neurogranin level was significantly lower in the female stress group than that in the male stress group, whereas there was no significant gender difference in the control group. Immunohistochemical data further confirmed these results. The present study provides evidence that prenatal restraint stress induces gender-dependent decrease in neurogranin expression in the offspring hippocampus. The prenatal restraint stress-induced decrease in neurogranin expression in the hippocampus might be associated with the deficit in spatial learning and memory reported previously.
Animals
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Blotting, Western
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Female
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Hippocampus
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chemistry
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Immunohistochemistry
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Male
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Neurogranin
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analysis
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Pregnancy
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Prenatal Exposure Delayed Effects
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Rats
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Rats, Sprague-Dawley
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Restraint, Physical
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Stress, Psychological
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metabolism
5.Mechanism of bradykinin on inflammations of retinal pigment epithelium cells
Wen-Ting, CAI ; Cheng-Da, REN ; Qing-Yu, LIU ; Qing-Quan, WEI ; Ya-Ru, DU ; Qian-Yi, WANG ; Jun-Ling, LIU ; Meng-Mei, HE ; Jing, YU
International Eye Science 2016;16(8):1430-1434
Abstract?AIM: To investigate mechanism of bradykinin ( BK) on inflammations of retinal pigment epithelium ( RPE) cells.?METHODS: ARPE -19 cells were cultured in vitro, stimulated by 100nM BK for 24h. Cell morphology changes were observed by microscope, and BK receptor localization was detected through cell immunofluorescence. Changes of Ca2+in BK and BR antagonist stimuli were detected by laser scanning confocal microscopy.The expressions of COX-1, COX-2, eNOS and iNOS protein in control group and BK group were detected by Western Blot.?RESULTS: After the stimulation of BK, there was no significant changes of ARPE-19 cells in morphology.Kinin B1 receptors ( B1R ) and B2 receptors ( B2R ) could be detected in ARPE-19 cells.Compared with control group, Ca2+concentrations significantly increased in BK group; in B1R antagonist group and B2R antagonist group Ca2+concentrations increased less than BK group; B1R and B2R antagonist group showed no obvious changes in Ca2+concentrations.Compared with control group, COX-2 and iNOS protein concentrations were significantly increased in BK group (P<0.001).?CONCLUSION:BK induces the increasing expression of COX-2 and iNOS in the cultured ARPE cells through binding with either B1R or B2R.
6.Professor LUO Cai-gui's experience of using acupoint "Baliao" for treatment of low back pain.
Qun-Wen LU ; Min-Yu WANG ; Qing-Bing LI ; Yi-Wen WAN ; Da-Wei SHI ; Zhong-Xing LIU ; Jian LUO ; Cai-Gui LUO
Chinese Acupuncture & Moxibustion 2014;34(12):1225-1227
Professor LUO Cai-gui's experience of acupuncture at acupoint "Baliao" with twisting manipulation for treatment of low back pain is introduced. This method has significant efficacy on improving low back pain and numbness of lower extremities, which is characterized with short-time manipulation, quick de-qi and long effective time. The acupuncture methods, manipulations, precautions, etc. are elaborated in details. A typical case is added.
Acupuncture Points
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Acupuncture Therapy
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instrumentation
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methods
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Humans
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Low Back Pain
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therapy
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Male
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Middle Aged
7.Changes of serum cytokeratin 19 fragment in postoperative patients with non-small cell lung cancer
Yong-Xin ZHOU ; Yong-Wu WANG ; Yun-Qing MEI ; Jing FENG ; Jian-Zhi CAI ; Yi-Feng SUN ; Qiang JI ; Da-Wen LI ;
Chinese Journal of General Practitioners 2005;0(07):-
Objective To study the clinical value of serum cytokeratin 19 fragment (CYFRA21-1) as a biomarker in evaluating its prognosis,monitoring and follow-up of the postoperative patients with non- small cell lung cancer (NSCLC).Methods Serum CYFRA21-1 was determined by radioimmunoassay for 207 patients with NSCLC before and after surgical operation at Tongji Hospital,Shanghai.Relationship between serum CYFRA21-1 and the prognosis,recurrence and metastasis of lung cancer was analyzed retrospectively.Results The patients were followed-up for 37 months in average.Preoperative serum CYFRA21-1 was positive in 42.0% (87/207) of all the cases,48.8% (60/123) of squamous cell earcinama and 34.6% (27/78) of adenocarcinoma,with statistical significance (X~2=3.901,P
8.DNA analysis of a 500 year mummy sample.
Da-yue TONG ; Xin-yao WU ; Gui-qing CAI
Journal of Forensic Medicine 2003;19(4):199-200
OBJECTIVE:
To accumulate experience for dated forensic matter analysis, for example, Mummy.
METHODS:
DNA are extracted by methods of phenol-chloroform and are purified by Wizard DNA clean-up system. The STRs locus are ampolification with Promega Powerplus 16 system. The mtDNA hypervariable region 1 (HV1) is amplificated by '3 pair primers'. The products were sequenced with 377 DNA sequencer.
RESULTS:
The STRs locus very distinctness and mtDNA sequence is correct.
CONCLUSION
It is a valuable method for special forensic matters.
Base Sequence
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DNA/genetics*
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DNA, Mitochondrial/genetics*
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Forensic Medicine
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Humans
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Microsatellite Repeats/genetics*
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Molecular Sequence Data
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Mummies
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Sequence Analysis, DNA/methods*
9.Epidemiological study on hyperuricemia and gout in Foshan areas, Guangdong province
Jun-Wen YU ; Tong-Guang YANG ; Wei-Xia DIAO ; Xiao-Qing CAI ; Ting LI ; Hua ZHONG ; Da-Lin HU ; Cui-Qing CHEN ; Zi-Xing CHEN
Chinese Journal of Epidemiology 2010;31(8):860-862
Objective To determine the prevalence rates and risk factors of hyperuricemia(HUA) and gout among residents aged over 20 years in Foshan areas. Methods A randomly stratified cluster sampling was conducted, and 7403 inhabitants were investigated on their prevalence rates of HUA and gout. Results (1) The prevalence of HUA was 15.09%, and the standardized rate was 15.27%, in which the prevalence in males was 19.90% and females was 10.54%. The prevalence of gout was 1.04% and the standardized rate was 1.08%,in which the prevalence in males was 1.73%and females was 0.39%. The prevalence of gout in patients with HUA was 6.89%. (2) Average serum uric acid was (336.4 ± 81.5) μmol/L, with (347.1 ± 88.6) μmol/L in males and (289.7±78.6) μmol/Lin females. The serum uric acid levels in male patients with HUA was higher than those in women.(3) Age, body mass index, systolic blood pressure, diastolic blood pressure, serum uric acid, blood sugar, triglyceride (TG), total cholesterol were significantly higher in patients with HUA and gout than in the normal group (P<0.05-0.01). The incidence rates of patients with hyperuricemia and gout in the following indices as: overweight and obesity, high blood pressure, high blood sugar were significantly higher than those in the normal group (P<0.05). Patients having gout in the following indices as age, TG, serum uric acid levels were significantly higher than the HUA group (P<0.05).(4) Data from non-conditional logistic regression analysis showed that age, overweight, hypertension,diabetes, hyperlipidemia, use of diuretics, family history, alcohol uptake, eating seafood and drinking meat broth, post-menopausal women, and other factors were similar to those factors as patients with hyperuicemia. Tea, fresh vegetables, fruits seemed to be the protective factors. Conclusion Both the prevalence rates of HUA and gout had significantly increased in Foshan areas in recent years.Restricting the intake of food with rich purine, alcohol intake as well as controlling obesity and blood pressure, improving the status of lipid metabolic disorder together with programs as hypertension control etc. were important measures in the strategies on prevention and treatment on hyperuricemia and gout.
10.Irinotecan plus cisplatin for the treatment of advanced non-small cell lung cancer.
Xiang-Ru ZHANG ; Yun-Zhong ZHU ; Qing-Yu XIU ; Fu-Cai HAN ; Duan-Qi LIU ; Da-Tong CHU
Chinese Journal of Oncology 2006;28(10):777-779
OBJECTIVETo evaluate the efficacy and adverse events of irinotecan (CPT-11) combined with cisplatin (DDP) in the treatment of patients with advanced non-small cell lung cancer (NSCLC).
METHODSOf 36 NSCLC patients consisting of 23 males and 13 females with a medium age of 52 years included, there were 26 adenocarcinomas, 7 squamous cell carcinomas, 1 adeno-squamous cell carcinoma and 2 unclassified types; 13 stage III B and 23 stage IV; 24 chemonaive and 12 previously treated by chemotherapy with a medium Karnofsky status of 90. All patients had measurable or evaluable parameters. The regimen was administered as following: CPT-11 60 mg/m2, IV, D1, 8 and 15; DDP 80 mg/m2, IV, D1; every 28 days as a cycle.
RESULTSTotally, 97 cycles were carried out in these 36 patients with a medium cycles of 3. Of 35 evaluable patients, 22.9% (8/35) achieved partial response, 60.0% (21/35) had stable disease and 17.1% (6/35) progressive disease. The response rate was 29.2% (7/24) for chemonaive patients and 9.1% (1/11) for these previously treated. The 1-year survival rate was 45.4% with a medium time to tumor progression (TTP) of 199 days for the responders. The incidence rate of grade III/IV adverse events were: 16.7% for neutropenia, 13.9% alopecia, 5.6% diarrhea, 2.8% nausea and vomiting, respectively.
CONCLUSIONIrinotecan plus cisplatin is effective with tolerable adverse events in treating patients with advanced non-small cell lung cancer, but further investigation trials are needed.
Adult ; Aged ; Alopecia ; chemically induced ; Antineoplastic Combined Chemotherapy Protocols ; adverse effects ; therapeutic use ; Camptothecin ; administration & dosage ; adverse effects ; analogs & derivatives ; Carcinoma, Non-Small-Cell Lung ; drug therapy ; mortality ; pathology ; Cisplatin ; administration & dosage ; adverse effects ; Diarrhea ; chemically induced ; Female ; Humans ; Lung Neoplasms ; drug therapy ; mortality ; pathology ; Male ; Middle Aged ; Neoplasm Staging ; Neutropenia ; chemically induced ; Remission Induction ; Survival Rate