1.The role of apoptosis in pancreatic cancer therapy
Xiangxuan ZHAO ; Feng WEN ; Zaiming LU
Practical Oncology Journal 2016;30(4):375-379
Pancreatic adenocarcinoma ( PAC) is still a refractory human digest malignancies due to multi-faceted causes ,late diagnosis and insensitive to traditional chemo -and radio-therapy .Resistance to apoptosis could be one of the most relevant mechanisms for PAC to escape any non -surgical therapy .This review aims to clear up the main deregulated apoptosis signal pathways over the years and to find out the abnormal molecule tar -get(s),and therefore,provide novel concepts for PAC molecular targeting therapy .
3.Biomechanical study of single - level anterior cervical intervertebral decompression and fusion with plating uniplate and orion
Feng ZHANG ; Jianhua LU ; Jian ZHAO
Orthopedic Journal of China 2006;0(19):-
0.05).[Conclusion]The stability of the single - level anterior cervical intervertebral decompression and fusion with plating Uniplate is satisfactory.Uniplate is valuable in clinic,furthermore,it is relatively simple to operate.
4.Comparison of cerebral glucose metabolism between Alzheimer's disease and dementia with lewy bodies
Tao FENG ; Xingquan ZHAO ; Linlong LU ; Xuan ZHANG ; Yoagjun WANG
Clinical Medicine of China 2009;25(4):348-350
Objective To investigate the feature of cerebral glucose metabolism of Alzheimer's disease (AD)and dementia with lewy bodies (DLB).Methods 28 patients with AD and 25 patients with DLB underwent positron emission tomography (PET)with 18 F-fluorodeoxyglucose (18F-FDG)showing glucose metabolism.The region of interest (ROI)was selected from frontal cortex,temporal cortex,parietal cortex,occipital cortex,cerebellum cortex and corpora striata.The 18 F-FDG metabolism ratios between various cerebral regions and cerebellum cortex were compared as an indicator of regional cerebral glucose metabolic patterns.Results The FDG metabolism ratio of parietal cortex and temporal cortex decreased similarly in AD.The FDG metabolism ratio of frontal cortex,parietal cortex,temporal cortex,occipital cortex,dorsal caudate putamen and caudate nucleus in AD was [(0.861 ± 0.173),(0.625 ± 0.149),(0.598 ± 0.185 ),(0.914 ± 0.214),( 1.030 ± 0.084)and ( 0.997 ± 0.102 )].The FDG metabolism ratio of frontal cortex,parietal cortex,occipital cortex,temporal cortex and corpus striatum decreased similarly in DLB.The FDG metabolism ratio of frontal cortex,parietal cortex,temporal cortex,occipital cortex,dorsal caudate putamen and candate nucleus in DLB was [ (0.538 ±0.147),(0.615 ±0.138),( 0.587 ±0.142),(0.415 ±0.107 ),(0.685 ± 0.094)and (0.547 ± 0.103 )].The FDG metabolism ratio of frontal cortex,occipital cortex and corpus striatum decreased more significantly in DLB than in AD (P<0.01 ).Conclusion There are discrepancies in cerebral glucose metabolism between AD and DLB.These features may be useful in differential diagnosis of these two kinds of dementia.
5.A giant solitary fibrous tumor of the pleura.
Lu-feng ZHAO ; Ying CHAI ; Li-jian HUANG
Chinese Medical Journal 2013;126(15):2999-2999
6.Effect of apelin-13 on myocardium apoptosis in diabetic rats
Hang ZHAO ; Jinghui FENG ; Ying LU ; Xiuping WU
Chinese Journal of Geriatrics 2016;35(1):85-90
Objective To investigate the effect of exogenous apelin-13 on oxidative stress, myocardial inflammatory cytokines and apoptosis in diabetic model rats.Methods A total of 40 male Wistar rats were randomly divided into 2 groups: normal control group (NC, n=8) and experimental group (EX, n=32).Diabetes was induced by feeding with high-sugary and high-fat diet for 8 weeks and a single intraperitoneal injection of streptozotocin (STZ) (30 mg/kg).The wellestablished 28 diabetic model rats were then randomly divided into 2 subgroups: model group (DM, n =14) and apelin-13 administration group (AP, n =14).The rats in AP group were given intraperitoneal administration of apelin-13 at a single dose of 0.1 μtmol · kg-1 · d-1 for 10 weeks, while NC group and DM group were given 0.9% NaCl in the same way.All rats were sacrificed at the end of the week 10.Blood hydrogen peroxide (H2O2), nitric oxide (NO) and malonaldehyde (MDA) were measured by colorimetry, and superoxide dismutase (SOD) was measured by enzyme-linked immunosorbent assay (ELISA).The expressions of interleukin-6 (IL-6) and tumor necrosis factor-α (TNF-α) in rat myocardium were detected by immunohistochemistry.Masson staining was used to observe the myocardial fibrosis in rats of different groups.Cardiomyocyte apoptosis was determined by TUNEL.Results (1) Compared with NC groups, DM group showed that MDA, H2O2 and NO were significantly increased, while SOD was significantly decreased (F=22.400, 6.230, 4.267 and 8.901, all P<0.0167).There was a statistically significant difference in the levels of MDA, H2O2,SOD between DM group and AP group.(2) The expression of TNF-α and IL-6 was significantly higher inDMgroup than inNCgroup (0.0599±0.0208 vs.0.0076±0.0031, F=35.139;0.0503±0.0243 vs.0.0071± 0.0024, F=15.946, both P<0.0167).After 10 weeks of apelin-13 administration, the levels of inflammatory cytokines were significantly decreased in AP group than in DM group.(3) The myocardial apoptosis and fibrosis were significantly increased in DM group than in NCgroup [0.0293±0.0061 vs.0.0030-t-0.0013 and 0.0708±0.0420 vs.0.0013±0.0003, F=84.930 and 19.420, both P<0.0167].The myocardial apoptosis and fibrosis were significantly decreased in AP group than in DM group (both P<0.0167).Conclusions To some extent, apelin13 reduces the levels of oxidative stress and myocardial inflammation reaction in type 2 diabetes.Moreover, it may play a vital role in the improvement of myocardial apoptosis and fibrosis.
7.Study advances on the roles of apoptosis in hepatocellular carcinoma therapy
Xiangxuan ZHAO ; Feng WEN ; Xiaonan MAO ; Zaiming LU
Practical Oncology Journal 2016;30(5):448-452
Hepatocellular carcinoma ( HCC ) is one of the commonest malignant tumors in China .The therapeutic effects of conventional therapies including surgery resection at early stage ,chemotherapy or radiothera-py are greatly less than expected .One of the most possible reasons is the blockage of apoptosis in HCC cells .This review collects literatures about the studies on the roles of key signal pathways including RA ,STAT3,PDT,p53,β-catenin,TRAIL,microRNA and RAS in HCC therapy .This study may contribute greatly to providing outline in-sights for using apoptosis induction in liver cancer therapy .We hope it can promote the development liver cancer therapy in China .
8.Analyses of toxicology results in the ifre and non-ifre related carbon monoxide poisoning
Xuesong LU ; Feng LI ; Yao ZHAO ; Han ZHANG
Chinese Journal of Forensic Medicine 2016;31(4):384-386
Objective Explore the individual difference in carbon monoxide (CO) poisoning and analyze whether females were be more resistant to CO poisoning.Methods We collected 207 cases of CO poisoning deaths, and then we analyzed the Carbonyl Hemoglobin (COHb) results sorted by different sources of CO.Results The source of CO had significant impact on the fatal COHb level, but gender was not significant in affecting COHb level. In addition, it is possible that children and elders were less resistant to COHb than adults.
9.Application of 3.0T magnetic resonance diffusion weighted imaging in evaluating the effect of advanced gastric cancerˊs neoadjuvant chemotherapy
Zengxin LU ; Zhenhua ZHAO ; Aijing SUN ; Feng TAO ; Jieqing LYU
Cancer Research and Clinic 2015;(7):453-457
Objective To evaluate the clinical value of 3.0T magnetic resonance imaging (MRI) diffusion weighted imaging (DWI) on evaluation effect of neoadjuvant chemotherapy in advanced gastric cancer. Methods 3.0 T MRI DWI examination was performed in 42 cases of advanced gastric cancer diagnosed by gastroscopy and pathology, including 32 patients were examined with DWI both before and after chemotherapy. Lymph nodes of gastric cancer lesions and display ability of stomach were measured, and the area of the apparent diffusion coefficient (ADC) values in normal stomach and tumors were compared. ADC values were compared in the same patients before and after neoadjuvant chemotherapy and analyzed along with postoperative pathological examinations. Results In a total of 40 patients who received 74 DWI examinations, ADC values in tumor and lymph nodes were significantly higher than those in normal tissue. The ADC value in tumors was (1.348 ±0.278) ×10-3 mm2/s, and in 12 cases of stomach lymph node enlargement was (1.329±0.188) ×10-3 mm2/s. However, the average ADC value of normal stomach was (2.081± 0.189) ×10-3 mm2/s with significantly lower DWI than that of the former (P< 0.001). After chemotherapy, the ADC value in tumors was increased, which was (1.572 ±0.261) ×10-3 mm2/s (P< 0.001). After neoadjuvant chemotherapy, 16 patients received gastric cancer radical prostatectomy, and postoperative pathological TRG ratings of tumor were decreased with different extent. Tumor cell density (TCD) before treatment with an average of 4.45 ×10-5 / px2, which was downgraduated to 2.48 ×10-5 / px2 after chemotherapy and surgery. Negatively correlation between TCD values and ADC values were observed. Conclusion MRI DWI examination can effectively detect advanced stomach cancer and the associated lymph node enlargement. Comparison of tumor morphology and ADC values in advanced gastric cancer before and after neoadjuvant chemotherapy has clinical value in prognosis.
10.The clinical characteristics and coagulation parameters of the infants with placental abruption
Lu YANG ; Wenli ZHAO ; Qiuping LI ; Jing XU ; Zhichun FENG
Chongqing Medicine 2013;(28):3350-3352
Objective To analyze the clinical characteristics and coagulation parameters of the infants with placental abruption . Methods Analysis was made on clinical and laboratory indexes of the hospitalized children of the NICU of Bayi Clinical Medical College of South Medical University ,enrolled from August 2012 to January 2013 ,including 60 infants with placental abruption as observation group and 60 infants without placental abruption as the control group .Results From clinical manifestations and lab date ,significant differences were found in gestational age ,polyembryony ,premature rupture of membrane ,birth weight ,intrauterine growth retardation ,motherhood gestational hypertension ,mother gestational diabetes mellitus ,asphyxia ,APTT ,D-dimer on admis-sion between the observation group and control group (P<0 .05) .Conclusion Placental abruption is the result of placental insuffi-ciency ,which may cause coagulation disorder and thus show the pathological state of high condensation in infants .