1.Experimental therapy with angiogenesis inhibitor TNP-470 on human ovarian cancer transplanted subcutaniously in nude mice
Haihong KONG ; Zhijun JIN ; Ming YAO
Chinese Journal of Obstetrics and Gynecology 2000;0(09):-
Objective To study the effect of an angiogenesis inhibitor TNP-470 (TNP )used alone and in combination with cytoxan(CTX) in the treatment of human ovarian cancer transplanted s.c. in nude mice. Methods Human ovarian cancer transplanted s.c. in nude mice model was established, then divided into 5 groups: control group, vehicle group, TNP group,CTX group and TNP+CTX group, different treatments were served from day 8 after transplantation and all mice were sacrificed after 28 days. The weights of the mice and the volumes of the tumors were measured respectively during the therapy time. Moreover, microscopy was done after H&E staining. Results The growth inhibiting rates in the TNP and CTX group were 26.1% and 33.9% respectively; After combined, the rate was increased to 70.5%. There were no obvious decrease in the weight of all treated mice. Conclusions Treatment with TNP is an potentially useful method of antitumor therapy in ovarian cancer, although the inhibition effects were not obvious in small doses. Moreover,TNP could enhance the effectiveness of antitumor drug.
2.Relationship of high-sensitivity C-reactive protein and carotid artery atherosclerosis with acute cerebral infarction
Xiangfeng KONG ; Ming CHEN ; Ping WANG
Chinese Journal of Geriatrics 2010;29(8):629-631
Objective To investigate and analyze the relationship of the level of high-sensitivity C-reactive protein (hs-CRP) and carotid artery atherosclerosis with acute cerebral infarction (ACI).Methods Fifty-nine patients with ACI were assigned as experimental group and thirty healthy people as control group. The serum level of hs-CRP was measured, and the carotid plaques and the changes of carotid intimal-medial thickness (IMT) were examined by color Doppler ultrasonography.Then the relationship between the serum level of hs-CRP and the severity of disease was analyzed.Results The serum level of hs-CRP was higher in ACI group than in control group [(5.96± 1.52)mg/L vs. (1.78±1.02) mg/L, t=15.383, P<0.01]. The detection rates of carotid plaques and the increased carotid IMT were higher in ACI group than in control group [77.97% vs. 36.67%, x2 =12.92, P<0.01; (1.18±0.17) mm vs. (1.02±0.15) mm, t=4.544, P<0.05]. The hs-CRP levels were higher in the severe cases [(15.68±1.45) mg/L] than in moderate cases [(4.16±1.39)mg/L] and mild cases [(1.88±0.34) mg/L, t=37. 217, 25. 243, both P<0.01]. Conclusions The elevated levels of hs-CRP have overt clinical significances for the atherothrombotic cerebral infarction. Early determination of hs-CRP is helpful to evaluate patient's condition and prognosis.
3.Clinicopathological characteristics of axillary lymph node metastasis in lung cancer
Yue KONG ; Yujin XU ; Ming CHEN
Chinese Journal of Clinical Oncology 2017;44(2):87-91
Objective:To investigate the clinicopathological characteristics of lung cancer patients with axillary lymph node metastasis (ALNM). Methods:The clinical data of 91 lung cancer patients with ALNM who were treated in Zhejiang Cancer Hospital from January 1st, 2007 to December 31st, 2013 were retrospectively analyzed. The relevance of the sites of the tumor site, local lymph node, and ax-illary lymph node was checked by contingency table. Survival rates were calculated by the Kaplan-Meier method and compared by a log-rank test. Cox proportional hazards model was applied to analyze the prognostic factors. Results:The proportion of lung cancer pa-tients with ALNM was 0.63%, and the patients were often presented with adenocarcinoma, peripheral tumor type, pleura invasion with pleural effusion, or chest wall invasion. A relationship between tumor sites, local lymph node sites, and axillary lymph node sites was observed. The median survival time of lung cancer patients with ALNM was 19.02 months, and the two-year survival rate is 62.64%. Patients identified with ALNM at the initial diagnosis reported poor prognosis (P=0.002). Cox regression analysis showed that the relative risk of death in patients with ALNM at initial diagnosis was elevated 2.18 times (95%CI:1.330?3.572, P=0.003). Conclu-sion:ALNM in lung cancer is rare, and it may involve through direct chest wall invasion and spread from supraclavicular and mediasti-nal lymph node metastasis or systemic origin. Patients detected with ALNM at the initial diagnosis indicated poor prognosis.
4.Correlation between heart rate variability and multiple system atrophy
Jing ZHU ; Ming KONG ; Sheng LI
Journal of Clinical Neurology 2015;28(6):442-444
Objective To explore the correlation between heart rate variability ( HRV ) and multiple system atrophy( MSA) .Methods HRV was performed in 34 MSA patients and 32 healthy controls.The parameters of HRV study was compared, parameters studied included time domain and frequency domain.Single factor analysis andreceiver operating characteristic ( ROC ) curves were used to analyze the detection of parameters of HRV. ResultsThe HRV of MSA showed significant decreased from the health controls: root mean square successive difference of intervals (rMSSD) [(51.6 ±29.4)ms vs (70.1 ±34.1)ms,P=0.023],percentage of interval differences of successive N-N intervals greater than 50 ms(pNN50%) [ 4.2% (1.8%,9.5%) vs 9.6%(5.1%, 16.2%),P=0.005], coefficient of variation(CV) [(0.06 ±0.01) vs(0.08 ±0.02),P=0.005],very low frequency(VLF) [1003.4(586.5,1702.9)ms2vs1825.5(1407.2,2670.1)ms2,P=0.000],lowfrequency(LF) [162.9(90.6,337.4) ms2 vs 375.5(210.4,559.5) ms2,P=0.001], high frequency(HF) [164.9(77.5,470.7) ms2 vs 349.1(209.7,738.5)ms2,P=0.005].The areas under ROC in patients with MSA for VLF was 0.703(S=0.053), while the areas for CV, LF, HF and pNN50%were 0.667(S=0.054), 0.660 (S=0.055), 0.650( S=0.055) and 0.640( S=0.055) ,the results all have statistical significance(all P<0.05).The cutoff value of VLF for diagnosing MSA in the early stage was 1240.85, the sensitivity and specificity were 86.7 and 55.4(95%CI:0.599-0.807,P=0.002) .Conclusion MSA has sympathetic and vagus nerve involvement at the early stage disease, resulting dysfunction of cardiovascular autonomic system,VLF may have high drgree of assessing accuracy of its dysfunction.
5. Detection and significance of promoter hypermethylation of p16 gene and MGMT gene in plasma from non-small cell lung cancer patients
Tumor 2007;27(9):715-718
Objective: To detect the aberrant methylation in the promoter of p 16 and O6-methylguanine DNA methyltransferase (MGMT) gene in peripheral plasma from non-small cell lung cancer (NSCLC) patients and to evaluate the clinical significance in the screening and early diagnosis of NSCLC. Methods: A nested methylation-specific PCR (nMSP) was performed for the detection of promoter hypermethylation of p16 gene and MGMT gene in plasma from 65 NSCLC patients. Results: Of the 65 plasma samples, p16 gene promoter hypermethylation was detected in 19 patients (29.23%) and MGMT gene promoter hypermethylation was found in 16 patients (24.62%). However, promoter hypermethylation in p16 gene and MGMT gene was not found in plasma samples from the normal controls (P < 0.05). The hypermethylation detection rate in plasma of the two genes did not significantly correlate with the pathological classification and clinical staging of NSCLC (P >0.05). Conclusion: Detection of the aberrant methylation in the promoter of p16 gene and MGMT gene in plasma from NSCLC patients by nMSP method might provide valuable information for the screening, early diagnosis, and prediction of prognosis of NSCLC.
7.Being a matter of fact, disease is not diversified in Chinese medicine and Western medicine.
Chinese Journal of Integrated Traditional and Western Medicine 2010;30(4):423-425
Being a matter of fact, disease itself is not diversified in Chinese and Western medicine, the only discrepancy between them lies on the different understandings. The implacable different cognitions of the two medicines on an identical fact just demonstrate some deviations from the truth. Since the thing researched is the same one, the diverge must be lessened when the cognition is pushing near the truth, hereby, the recognition for communicating is get ready. Besides, communication with other medicines is the objective requirement for Chinese medicine itself due to the insufficient auto-renewing in a long time, and interchanging with Western medicine is one of the very important ways beyond question. So, the problem needed to be taken into consideration is how to make it actual, but not whether it is the requisite.
Medicine
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Medicine, East Asian Traditional
8.The genetic and epigenetic alterations in human hepatocellular carcinoma: a recent update.
Ming LIU ; Lingxi JIANG ; Xin-Yuan GUAN
Protein & Cell 2014;5(9):673-691
Hepatocellular carcinoma (HCC) is one of the most frequent human malignancies worldwide with very poor prognosis. It is generally accepted that the progression of HCC is a long-term process with accumulation of multiple genetic and epigenetic alterations, which further lead to the activation of critical oncogenes or inactivation of tumor suppressor genes. HCC is characterized with multiple cancer hallmarks including their ability to proliferate, anti-apoptosis, invade, metastasis, as well as the emerging features such as stem cell properties and energy metabolic switch. The irreversible alterations at genetic level could be detected as early as in the pre-neoplastic stages and accumulate during cancer progression. Thus, they might account for the cancer initiating steps and further malignant transformation. In addition to genetic alterations, epigenetic alterations can affect the cancer transcriptome more extensively. Alterations in DNA methylation, histone modification, miRNAs, RNA editing, and lncRNAs might result in disrupted gene regulation networks and substantially contribute to HCC progression. In this review, the genetic and epigenetic alterations which significantly contribute to the malignant capabilities of HCC will be updated and summarized in detail. Further characterization of those critical molecular events might better elucidate the pathogenesis of HCC and provide novel therapeutic targets for treatment of this deadly disease.
Carcinoma, Hepatocellular
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genetics
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metabolism
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pathology
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Chromosome Aberrations
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Disease Progression
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Epigenesis, Genetic
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Gene Expression Regulation, Neoplastic
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Genetic Predisposition to Disease
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genetics
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Humans
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Liver Neoplasms
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genetics
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metabolism
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pathology
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Models, Genetic
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Mutation
9.An overview of effects of traditional medicine on pharmacokinetics of western medicine.
Ya-Qin ZHEN ; De-Zhi KONG ; Lei-Ming REN
Acta Pharmaceutica Sinica 2014;49(2):175-182
Traditional medicine (herb medicine) began to prevail again over last two decades, and it is about 70% of the world population taking herb medicine as supplement or alternative medicine according to a recent survey. The consumption of herb medicine increased exponentially in Canada, Australia and Europe during last 10 years. Since concomitant administration of herbal and western medicine has become a trend, it requires paying close attention to the problem. Herb-drug interactions have been extensively investigated worldwide, and there is an increasing concern about the clinical herb-drug interaction. In this review we introduced the current progress in the herb-drug interactions including evidence-based clinical studies and establishment of levels of evidence for herb-drug interaction; and in the related mechanisms including the induction and inhibition of metabolic enzymes, inhibition and induction of transport and efflux proteins, alteration of gastrointestinal functions, and alteration in renal elimination. We also analyzed both the achievements and the challenges faced in the concomitant administration of traditional Chinese medicine and western medicine.
ATP-Binding Cassette, Sub-Family B, Member 1
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metabolism
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Biological Transport
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drug effects
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Cytochrome P-450 Enzyme System
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metabolism
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Drugs, Chinese Herbal
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isolation & purification
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pharmacokinetics
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pharmacology
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Evidence-Based Medicine
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methods
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Gastrointestinal Tract
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drug effects
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Herb-Drug Interactions
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Humans
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Kidney
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drug effects
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Medicine, Chinese Traditional
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Pharmacokinetics
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Phytotherapy
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Plants, Medicinal
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chemistry
10.The flow cytometry of trabecular meshwork cells apoptosis in Monglia with primary angle closure glaucoma
Wei, CUI ; De-ming, KONG ; Qiang, LU ; Li-na, YUN
Chinese Journal of Experimental Ophthalmology 2013;(3):288-291
Background Research showed that the morbidity rate of primary angle closure glaucoma (PACG) in Mongolian population is 3.02 times more than Han nationality population.To understand the cause and mechanism of PACG in Mongolia is of an important significance.Objective This study was to investigate the pathogenesis of Mongolian PACG.Methods Thirty-two eyes of 32 PACG patients in Mongolia and 40 eyes of 40 PACG patients of Han peoples were included in Inner Mongolia Autonomous Region People's Hospital according to the diagnosis criteria of glaucoma group of Chinese Medical Ophthalmology Association (version 1987),and 13 eyes of 13 normal Mongolia and 17 eyes of 17 normal Han peoples who suffered with ocular truma were recruited as controls.Intraocular pressure(IOP) was measured before surgery.The trabecular meshwork tissue was obtained from all the eyes during the operation.Annexinv-FITC/PI double staining was performed and the apoptosis rate of trabecula cells was tested with flow cytometry.Written informed consent was obtained initial of the study.Results The IOP value in Mongolia PACG group,Han PACG group,Mengolia normal group and Han normal group was (35.97±7.11)mmHg,(38.70± 6.82) mmHg,(14.69 ± 2.91) mmHg and (13.59 ± 2.91) mmHg,respectively,showing a significant difference among the 4 groups(F=106.144,P=0.000),and the IOP was significantly higher in the Mengolia PACG group and Han PACG group than the normal groups(P<0.05).The apoptosis rate of the cells was (7.14±0.67)%,(5.40±0.69) %,(5.86±0.91) % and(2.29±0.65) % in the Mongolia PACG group,Han PACG group,Mongolia normal group and Han normal group,respectively,with a significant difference among them (F =174.888,P =0.000),and apoptosis rate of the Mongolia PACG group was significantly higher than that of the Han PACG group and the Mongolia normal group (P<0.05).No significant difference was found between the Mongolia PACG group and the Han PACG group or between the Mongolia normal group and Han normal group (P>0.05).The cell apoptosis rate was increased with the elevation of IOP (b =0.990,F=10.209,P =0.009) with the regression equition Y =2.788 +0.092X.Conclusions The apoptosis rate of trabecula cells in Mongolian is higher than Han people.If these results are associated with the high incidence of Mengolia PACG is worth of study.