1.Influence of AKT on survival and apoptosis of gastric adenocarcinoma cells.
Yong LIU ; Ming-zhi LU ; Si-si FAN ; Sheng YUAN
Chinese Journal of Pathology 2009;38(5):340-341
Adenocarcinoma
;
pathology
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Apoptosis
;
drug effects
;
Cell Line, Tumor
;
Cell Survival
;
drug effects
;
Dose-Response Relationship, Drug
;
Humans
;
Nucleosides
;
administration & dosage
;
pharmacology
;
Proto-Oncogene Proteins c-akt
;
antagonists & inhibitors
;
Pyridazines
;
administration & dosage
;
pharmacology
;
Stomach Neoplasms
;
pathology
2.Relationship between Epstein-Barr virus and breast tumors.
Yong LIU ; Si-si FAN ; Ming-zhi LU
Chinese Journal of Pathology 2008;37(4):269-271
3.Intimal sarcoma of pulmonary artery: report of a case.
Ming-zhi LU ; Si-si FAN ; Yong LIU
Chinese Journal of Pathology 2013;42(4):278-279
Actins
;
metabolism
;
Desmin
;
metabolism
;
Diagnosis, Differential
;
Female
;
Hemangiosarcoma
;
metabolism
;
pathology
;
Humans
;
Leiomyosarcoma
;
metabolism
;
pathology
;
Middle Aged
;
Multimodal Imaging
;
Pulmonary Artery
;
pathology
;
Radiography
;
Sarcoma
;
diagnostic imaging
;
metabolism
;
pathology
;
Soft Tissue Neoplasms
;
secondary
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Vascular Neoplasms
;
diagnostic imaging
;
metabolism
;
pathology
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Vimentin
;
metabolism
4.Application of On-line SPE-HPLC System in Pharmacokinetic Study of Highly Active Anti-Cancer Compound TEB-415
Man WANG ; Yabin WEN ; Kangning LIU ; Ge SI ; Lei LIU ; Zheng YIN ; Yaxin LU
Chinese Journal of Analytical Chemistry 2014;(12):1729-1734
An on-line solid phase extraction-high performance liquid chromatography ( SPE-HPLC ) system was applied in the plasma pharmacokinetic study of highly active anti-cancer compound tyrosine kinase inhibitors (TEB-415) in mouse. The on-line SPE-HPLC method associated with Ultimate3000 system which was applied to the determination of the blood drug level of TEB-415 in mouse plasma. C18 column ( Venusil MP, 150 mm × 4. 6 mm, 5μm) was used as analytical column and the mobile phase consisted of acetonitrile-5 mmol/L monopotassium phosphate buffer ( pH 3 . 5 ) at a flow rate of 1 . 0 mL/min was used as the isocratic elution. An MF Ph-1 column (10 mm×4 mm, 5 μm) was used as on-line SPE column, and water and water-acetonitrile were used as the washing solvent and elution solvent respectively. The detection wavelength was set at 262 nm. The pharmacokinetic parameters were calculated by WinNonlin 5. 2 software. The linear range of the calibration curve was between 100 and 20000 μg/L, and the limit of qualification was 20 μg/L. The extraction recovery was between 90 . 5% and 94 . 6%. The RSD of intra-day and inter-day precision was less than 3. 5%. The accuracy of short-term stability, freeze-thaw stability and long-term stability were between 91. 49% and 101. 96%. After oral medication, the mean peak time (Tmax) of TEB-415 in mice was 5. 29 h, and the mean maximum concentration ( Cmax) was 3403μg/L. The area under the curve ( AUC) of TEB-415 was 24600 μg/L·h. This drug's mean half-life was 3. 84 h, and its mean retention time (MRT) was 6. 56 h. These parameters suggested that TEB-415 had appropriate rate of absorption and elimination with preferable bioavailability.
5.Clinical study of correlation of blood perfusion characteristics in liver cancer by contrast-enhanced ultrasonography and individualized interventional therapy
Qin SI ; Xiaoli QIAN ; Xushun LIU ; Yanli HUANG ; Zengcai LI ; Lu YANG
Chinese Journal of Ultrasonography 2010;19(11):948-951
Objective To identify the blood perfusion characteristics of different kinds of liver cancer and individualize interventional treatment models by color Doppler ultrasound(CDUS) and contrast-enhanced ultrasonography (CEUS). Methods The blood perfusion characteristics of 315 patients with liver cancer comfirmed by pathology were analyzed and classified using CDUS and CEUS. Individual interventional therapy models were selected based on the classification. Therapeutic effects were evaluated by EUS,contrast-enhanced CT(CECT) and DSA simultaneously. Results Liver cancer can be classified by the blood perfusion characteristics from CEUS examination. The individualized interventional treatment models were selected and evaluated according to the characteristics:①Solitary small HCC of diameter ≤3 cm group were treated via percutaneous ethanol injection(PEI),radiofrequency(RF) or percutaneous microwave coagulation therapy(PMCT). Necrosis rates of the lesions were 95.0% - 97.9%, 1 and 3 years survival rates were 98.0% and 87.8% ,respectively. ②Diameter ≤5 cm and lesions ≤3 group were treated with RF or PMCT combined PEI. Necrosis rates of the lesions were 93.7% - 94.8% ,1 and 3 years survival rates were 89.8% and 81.4% ,respectively. ③Diameter >5 cm and hypervascular tumor main fed by the hepatic artery group were treated with TACE,PEI combined RF or PMCT. Necrosis rates of the lesions were 71.4% - 73.8%, 1 and 3 years survival rates were 66.2% and 47.6%, respectively. ④ Diameter >5 cm and hypervascular tumor fed by double blood supply or accompanied by portal vein tumor thrombus group were treated with selective portal vein embolization(SPVE) based on the above treatments. Necrosis rates of the lesions were 53.3% - 55.6%, 1 and 3 years survival rates were 64.7% and 40.0%, respectively. Conclusions Classifying the blood perfusion characteristics and choosing individualized interventional treatment models by CEUS are of important clinical significance in non-surgical treatment of liver cancer.
6.Evaluation of Sander Ⅱ appliance in the treatment of Angle Ⅱ malocclusion with mandibular retrusion of adolecents
Xinqin SI ; Xianglin LI ; Yang LI ; Yuxia HOU ; Fei WANG ; Feng PAN ; Lu LIU
Journal of Practical Stomatology 2016;32(2):248-251
Objective:To evaluate the effects of Sander Ⅱ appliance in the orthodontic treatment of adolescent ClassⅡmalocclusion. Methods:15 cases (6 male and 9 female)of adolescent ClassⅡ malocclusion with mandibular retrution were treated with Sander Ⅱappliance.Pre-treatment and post-treatment Lateral cephalogram measurements were traced and analyzed in terms of 28 indicators. SPSS 19.0 software package was used for paired t test.Results:After treatment,15 patients achieved remarkable improvement in the maxillofacial profile and normal overjet of teeth.The cephalometric analysis showed that ANB,OJ,H°and U1-E decreased(P <0. 05),SNB,B-OLP,Pg-OLP(mm),Ii-OLP,Ms-OLP(mm),Mi-OLP(mm),N-Me,ANS-Me,S-Go,Go-Gn,N'-Pg'/FH,Cm-Sn-Ls and Pg-Pg'increased(P <0.05).There was no significant change in SN-MP,SN-OL and Y-axis before and after treatment. Conclusion:Sander Ⅱ appliance is effective in the treatment of adolescent early Class Ⅱmalocclusion.
7.Drug sensitivity trend analysis of Mycoplasma in urinary clinic of Lanzhou from 2010 to 2014
Baoliang MA ; Si CHEN ; Shengjun FU ; Xiao LIU ; Yan TAO ; Jianzhong LU
International Journal of Laboratory Medicine 2016;37(9):1210-1211
Objective To discuss ureaplasma urealyticum (Uu) and Mycoplasma hominis (Mh)susceptibility and resistance change trend in Lanzhou recent years .Methods Detected and statistical analyzed the mycoplasma drug sensitivity level of urinary tract infection patients in urinary clinic with Mycoplasma culture sensitivity reagents from 2010 to 2014 .Results Mycoplasma to Josamycin ,Doxycycline and Clarithromycin were more sensitive .In the 12 kinds of antibacterial drugs ,we found the declining trend of Ofloxacin and Spectinomycin drug sensitivity rates ,and upward trend of Minocycline and Josamycin drug sensitivity rates .Con‐clusion Mycoplasma overall drug sensitivity rate has a gradually downward trend ,which indicating a poor drug resistance control . It′s important to strengthen the antibiotic drug surveillance and security management .
8.Research on symptoms and transitional care needs of patients with lung cancer at the intermission of chemotherapy
Caiju LU ; Qi SONG ; Yong WANG ; Xianhua LIU ; Chunli LI ; Si HUANG
Chinese Journal of Practical Nursing 2016;32(16):1256-1260
Objective To investigate the symptoms and the needs of transitional care for the patients with lung cancer at the intermission of chemotherapy and provide references for the symptom management and carrying out transitional care. Methods Totally 156 patients with lung cancer were investigated by questionnaire survey. Results With the increase of chemotherapy, symptoms such as cough, sputum, dyspnea were relieved after chemotherapy(F=18.266, 20.463, 17.371, P < 0.05), but symptoms like fatigue, nausea, vomiting, loss of appetite, sleep uncomfortable were worse than before(F=15.821, 20.116, 16.439, 13.541, 9.528, P<0.05,<0.01). Negative emotions like bitterness and sadness had no obvious change. Symptoms affected the patients′mood, the incidence and severity were higher after chemotherapy(χ2=43.162, F=11.683, P < 0.05), as for general activity and walking, the incidence and severity were higher after the first cycle chemotherapy and the second cycle(χ2=42.589, 37.689, 39.125, F=9.148, 15.325, 14.758, P < 0.05), but after 4 cycles of chemotherapy, it did not change significantly (P>0.05). 79.49%(124/156)patients did not know the content and function of transitional care, 98.72%(154/156)patients hope to get transitional care through the hospital. Conclusions Symptoms by side effects were getting worse for patients with lung cancer and influenced their daily life. Patients got to know less about transitional care, however they had a strong need for transitional care. We should
reinforce the management of symptoms and transitional care to improve their quality of life.
9.Expression of long non-coding RNA MEG3 and its relationship with the prognosis of human gastric cancer
Feifei MENG ; Junli SI ; Lu LIU ; Jingyuan CUI ; Yuqin QI ; Mei LV
Chinese Journal of Clinical Oncology 2016;43(15):659-662
Objective:To investigate the expression of maternally expressed gene 3 (MEG3), a long non-coding RNA gene, in gastric can-cer tissues;determine the relationship of MEG3 with the prognosis of gastric cancer;and explore the relationship between MEG3 and apoptosis-associated protein P53 as well as murine double minute 2 (MDM2). Methods:Fifty-five consecutive patients with gastric cancer admitted to Qingdao Municipal Hospital for surgical treatment from September 2012 to June 2013 were included in this study. Gastric cancer and paired normal tissues were collected. The expression of MEG3 was tested through real-time quantitative poly-merase chain reaction (qRT-PCR). Western blot analysis was used to detect the expression of P53 and MDM2 in gastric cancer and eval-uate their correlations with MEG3. Results:The expression of MEG3 decreased in cancer tissues (7.98±0.19) relative to the correspond-ing normal tissues (9.47±0.18) (P<0.05). P53 and MDM2 showed negative relationships in the gastric cancer and normal tissues. A posi-tive relationship was found between P53 and MEG3 (r=0.591, P<0.05), whereas a negative relationship was found between MDM2 and MEG3 (r=?0.346, P<0.05). The median survival time was significantly prolonged in patients with high MEG3 expression compared with patients with low MEG3 expression. Conclusion:MEG3 exerts an inhibiting effect on the development of gastric cancer. MEG3, P53, and MDM2 may have important relationships in the biological mechanisms of gastric cancer development. Detecting the expression level of MEG3 may be useful for the prognosis of gastric cancer.
10.Steroid-resistant nephrotic syndrome accompanied with irreversible leukoencephalopathy:one case report
Jianjun WANG ; Chun WU ; Zengrong LIU ; Si WANG ; Jie YANG ; Xiaojiang LU ; Li QIN
Journal of Clinical Pediatrics 2015;(6):528-530
Objectives To analyze the diagnosis and management of steroid-resistant nephrotic syndrome (SRNS) accompanied with irreversible leukoencephalopathy in children. Methods The clinical, laboratory and imaging data were retrospectively analyzed in a SRNS child accompanied with irreversible leukoencephalopathy. A literature review was performed. Results After clinical diagnosis of SRNS, glucocorticoid, immunosuppressant, and hemodialysis were administrated for 10 months. During the course of treatment, the seizures, visual problems, and hypertension were repeatedly occured. The cranial MRI showed bilateral occipital parietal lobe hyperintensity and right frontotemporal lobe hyperintensity on T2-weighted imaging and bilateral occipital parietal lobe hypointensity on T2-Flair imaging, which indicated that encephalomalacia was accompanied with gliosis. Conclusions A variety of reasons may induce leukoencephalopathy in children. The accompanied irreversible leu-koencephalopathy should be strongly considered in management of SRNS.