1.Clinical observation of capecitabine and temozolomide in the treatment of advanced pancreatic neuroendocrine tumors
Qing LIU ; Pan ZHANG ; Jie LUO ; Dou DOU ; Huangying TAN
Chinese Journal of Clinical Oncology 2017;44(5):228-232
Objective:To observe the therapeutic effect and toxicity of capecitabine and temozolomide in the treatment of advanced pancreatic neuroendocrine tumors. Methods:A total of 14 patients with stageⅣwell-differentiated pancreatic neuroendocrine tumor (NET G1/G2/G3) were treated with oral CAPTEM regimen, and the response rate, PFS and adverse effect after treatment were analyzed. All data analyses were performed using software SPSS17.0. Results:These 14 patients were followed-up for more than 2 years. Till Oct 2016, one patient got CR, one patient got PR, four patients got SD. Median progression-free survival was 8.9 months. The two year survival rate was 85.7%. Only one patient experienced grade 3 adverse events. Conclusion:CAPTEM is an effective and well-tolerated salvage regimen for the treatment of advanced well-differentiated pNET.
2.THE EFFECTS OF THYROID HORMONE ON GONADOTROPIN SECRETION IN RAT′S PITUITARY CELLS
Jingtao DOU ; Changyu PAN ; Ming LI
Medical Journal of Chinese People's Liberation Army 2001;0(12):-
In order to investigate the effects of thyroid hormone on gonadotropin secretion in rat pituitary cells,the cultured rat pituitary cells were exposed to a series of concentrations of T 3 (0, 0 001, 0 01, 0 1, 1 and 10?g/ml). rLH and rFSH were determined after exposure to of T 3 The secretion ability of pituitary cells of rats with different thyroid function was evaluated in vitro. The results showed that high concentrations of T 3 (1 and 10?g/ml) inhibited the secretion of rLH ( P
3.Prospective memory deficit in acute stroke patients with cognitive impairment
Shenggui PAN ; Zulin DOU ; Yingbei CHEN
Chinese Journal of Physical Medicine and Rehabilitation 2011;33(8):592-594
Objective To explore the characteristics of prospective memory ( PM ) deficit in acute stroke patients with cognitive impairment.MethodsSixty patients suffering from acute stroke who met the inclusion criteria in screening with the neurobehavioral cognitive status examination (NCSE) were enrolled into the experimental group. Sixty healthy participants who matched the experimental group in gender distribution and average age and education level were assigned as a control group. All the participants completed several neuropsychological evaluations,including the Chinese version of the Cambridge prospective memory test ( C-CAMPROMT), the Chinese version of the Rivermead behavior memory test (C-RBMT), a digit-span test (DS), the Chinese version of Stroop's word-color test (C-SWCT) and a color trail test (CTT).ResultsTime-based PM (TBPM) scores in the control group were significantly higher than in the experimental group. At the intention initiation stage TBPM scores in the control group were also significantly better than in the experimental group. The TBPM performance of the experimental group was significantly worse than that of the controls when PM performance was compared with other cognitive functions controlled for.ConclusionsThe acute stroke patients with cognitive impairment showed greater TBPM performance deficits than the controls. This may have resulted from impairment at the intention initiation stage. TBPM deficits may exist independently. If so, they could serve as an assessment of cognitive impairment after stroke.
4.Lentivirus-mediated NGF gene silencing inhibited differentiation of PC12 Cells
Mengyun DOU ; Shufang HE ; Cheng HUANG ; Yonglu PAN ; Ye ZHANG
Chinese Pharmacological Bulletin 2016;32(8):1153-1157,1158
Aim To investigate the effects of lentivirus mediated nerve growth factor ( NGF) gene silencing on pheochromocytoma cells ( PC12 ) and the possible mechanisms .Methods The NGF shRNA expression vector was constructed .PC12 cells were randomly divi-ded into five groups (n=3 each) as follows: negative control group ( NC ) , control lentivirus group ( LV CON) , lentivirus NGF shRNA1 group ( LV shNGF1 ) , lentivirus NGF shRNA2 group(LV shNGF2), lentivir-us NGF shRNA3 group(LV shNGF3).The cells in NC group were cultured in DMEM/HG and polybrene me-dium, while others were cultured in DMEM/HG, poly-brene and corresponding lentivirus medium .After the treatment, the infection efficiency was determined by fluorescent microscope .Relative expression of NGF , extracellular signal-regulated kinase ( ERK1/2 ) and p-ERK1/2 were assessed by Western blot .The expres-sion of NGF mRNA was analyzed by quantitative re-verse transcription polymerase chain reaction ( qRT-PCR) .The differentiation degree was valued according to the length of neuritis and max diameter of cells .The cell viability was detected by CCK-8.Results The in-fection efficiency in PC12 cells reached over 90%. Compared with NC group , the relative expression of NGF mRNA and NGF protein was significantly down-regulated ( P<0.05 ) .There was no difference in the expression of ERK1/2 protein and cell viability .The expression of p-ERK1/2 protein was markedly down-regulated in LV shNGF3 group ( P<0.01 ) .The cells morphology was changed , and the length of neuritis and max diameter of cells were strained in LV shNGF 3 group than those in NC group ( P<0.01 ) .Conclusion Lentivirus-mediated NGF gene silencing inhibits the differentiation of PC12 cells through suppressing the activation of ERK1/2.
5.The Construction and Practice Research of Career-oriented Practical Pharmaceutical English Course in High-er Vocational Education
Zhixian CHEN ; Wenting ZHOU ; Yan LI ; Minxia PAN ; Zhihua DOU
China Pharmacy 2016;27(18):2585-2586,2587
OBJECTIVE:To provide reference for improving the application ability of professional English for students major-ing in pharmacy in higher vocational education. METHODS:The career-oriented practical pharmaceutical English course and teach-ing system were constructed through the way of formulation of curriculum standards,establishment of teachers’team,development of school-based teaching material,application of CBI theme teaching mode and variety teaching methods,and it was carried out among students majoring in pharmacy in 2011-2014 grades in our school. Besides,experimental and survey research were used for the evaluation of Proctical Pharmaceutical English. RESULTS:There was no significant difference in the academic achievement and questionnaire evaluation between 2 class before teaching(P>0.05);however,academic achievement and questionnaire evaluation were higher than 2 class after teaching,experimemal class higher than control class,the difference was statistically significant(P<0.05). CONCLUSIONS:The career-oriented Practical Pharmaceutical English course and teaching system is feasible and effective;compared with traditional teaching,it can inspire students' interest in English learning,improve the ability to use English in the work and motivate their comprehensive qualities.
6.Analysis of glucose dysbolism in patients with ectopic ACTH syndrome
Lei ZHAO ; Yiming MU ; Jingtao DOU ; Juming LU ; Changyu PAN
Chinese Journal of Endocrinology and Metabolism 2008;24(4):410-411
The characteristics of glucose dysbolism in ectopic ACTH syndrome (EAS) were investigated by analysing the clinical data of 117 patients with Cushing syndrome (CS). The patients with CS were divided into 3 groups : EAS group (n = 9) , Cushing's disease (CD) group (n = 67) and adrenocortical adenoma (AA) group (n =41). Retrospective analysis of the data covered the prevalence of secondary diabetes, blood glucose, HbAlc, blood potassium, and blood ACTH and 24 h urinary-free cortisol (UFC) levels. Compared with CD and AA groups, the prevalence of secondary diabetes and blood glucose level were higher in EAS group, while HbAlc level was lower. Blood glucose level in patients with ectopic ACTH syndrome decreased to normal after tumor removal.
7.Study on relationship between fat-rich diet-induced nonalcoholic fatty liver disease and endoplasmic reticulum stress in rats
Aixia DOU ; Hao PAN ; Lei ZONG ; Lungen LU
Chinese Journal of Digestion 2009;29(1):29-33
Objective To establish the nonalcoholic fatty liver disease(NAFLD) model in SD rats and to investigate if endoplasmic reticulum stress(ERS) plays a role in the pathogenesis of NAFLD. Methods A total of 36 male SD rats were randomly divided into 4 groups: normal control group 1(N1,n=8), normal control group 2 (N2,n=8), model group 1(M1,n=10) and model group 2(M2,n=10). The two control groups were fed with normal diets, whereas the two model groups were provided diets enriched in fat (10% lard oil and 2% cholesterol). The rats in N1 and M1 groups were sacrificed at the 12th week, and those in N2 and M2 groups were sacrificed at the 20th week. The serum alanine aminotransferase (ALT), aspartate aminotransferase(AST), alkaline phosphatase (ALP), total protein (TP), triglycerides (TG), total cholesterol (TC), low-density lipoprotein (LDL), high-density lipoprotein (HDL) were measured. The steatosis, immflamation and fibrosis of the liver were observed with HE and Masson staining. The expressions of GRP78, CHOP and procaspase-12 mRNA were tested using real-time PCR and the activation of procaspase-12 protein was detected by Western blot. Results At the 12th week, the liver index and the serum levels of ALT, AST,ALP,TP,TC,LDL in M1 group were significantly higher than those in N1 group (P<0.01), but HDL level was significantly lower in M1 group than that in N1 group (P<0.01). At the 20th week, the concentrations of TC and LDL in M2 group were significantly increased in comparison with N2 group. The histochemical study revealed that the hepatic steatosis and inflammation in M1 and M2 groups were more serious than those in N1 and N2 goups(P<0.01). The slight fibrosis was seen in M2 group. At the 12th and 20th weeks, the expressions of GRP78,CHOP and procaspase-12 mRNA and protein in M1 and M2 groups did not differ in N1 and N2 groups. Conclusions The fat-rich diet might successfully induce NAFLD in rats and there is no ERS observed in the study, which suggests that ERS may not be involved in the pathogenesis of NAFLD.
8.Oxygen saturation in the retinal vessels of glaucoma and normal eyes
Liqing WEI ; Li NIE ; Zhenbin QIAN ; Shixin ZHAO ; Xiaoqiong XU ; Renhui DOU ; Weihua PAN
Chinese Journal of Ocular Fundus Diseases 2016;32(4):408-412
Objective To observe the difference of retinal vessel oxygen saturation in glaucoma and normal eyes.Methods A cross sectional study design was performed.Fifty eyes of 30 glaucoma patients (glaucoma group) and 41 eyes of 27 age-and sex-matched healthy subjects (control group) were included.Retinal vessel oxygen saturation was measured with a spectrophotometric retinal oximeter in darkness and visual fields were obtained by Humphrey filed analyzer.The glaucoma eyes were divided into two groups:mean defect (MD) <6 dB (28 eyes) and MD≥6 dB (22 eyes) according to mean defect of visual field.Results Retinal arteriolar oxygen saturation values in glaucoma group and control group were (94.52 ±6.51) % and (93.47±6.30) % respectively.No statistical difference was found in retinal oxygen saturation in arterioles (H =-0.949,P =0.343).Retinal venous oxygen saturation values in glaucoma group and control group were (57.57 ± 7.96)% and (52.60 ± 7.70) % respectively.The retinal venous oxygen saturation values in glaucoma group was higher than that in control group (H=-3.318,P=0.001).The retinal arteriovenous difference in glaucoma group and control group were (36.59± 4.69)% and (42.41 ±6.73) % respectively.The retinal arteriovenous difference in glaucoma group was lower than that in control group (H=-4.148,P<0.01).The retinal arteriolar oxygen saturation values in glaucoma eyes with MD<6 dB and MD≥6 dB were (93.38 ± 6.33)% and (95.71 ± 6.54)% respectively,with no statistical difference (H=-1.857,P=0.063).Retinal venous oxygen saturation values in glaucoma eyes with MD<6 dB and MD≥6 dB were (54.83 ± 6.10) % and (6 1.07 ± 8.79) % respectively.The retinal venous oxygen saturation values in MD≥ 6 dB glaucoma eyes was higher than that in MD< 6 dB glaucoma eyes (H =-2.599,P=0.009).The retinal arteriovenous difference in glaucoma eyes with MD<6 dB and MD≥6 dB were (38.12± 4.34) % and (34.64 ± 4.49) % respectively.The retinal arteriovenous difference in MD≥6 dB glaucoma eyes was lower than that in MD<6 dB glaucoma eyes (H=-2.463,P<0.05).Conclusions Compared with healthy eyes,there is no change in the retinal arteriolar oxygen saturation,but the retinal venous oxygen saturation is higher and the retinal arteriovenous difference is lower.This feature is more obvious in MD≥6 dB glaucoma eyes.
9.Membrane-expressed InsB15-23 H-2Kd dtSCT can reduce morbidity of type 1 diabetes mellitus in NOD mice
Xingyuan PAN ; Zedong CHEN ; Yan DOU ; Kai LIANG ; Mingming YU ; Mingchun JI
Chinese Journal of Immunology 2015;(1):48-51
Objective:To illuminate the influence of InsB15-23 H-2Kd dtSCT to the morbidity of type 1 diabetes mellitus in NOD mice.Methods:An eukaryotic plasmid encoded membrane-expressed InsB15-23 H-2Kd dtSCT was inoculated into 3 weeks old female NOD mice subcutaneously and the blood sugar and morbidity of type 1 diabetes mellitus were monitored once a week.To illuminate the cellular mechanism of immunologic intervention of membrane-expressed InsB15-23 H-2Kd dtSCT to the course of type 1 diabetes mellitus in NOD mice,the mononuclear cell infiltration of islets was detected by tissue slice and the frequency of IGRP206 2-14 specific CTLs in PBMC was analyzed by FACs.Results: As compared with pcDNA3.1 (-) control ( 60%) and untreated NOD mice ( 80%) , mice immunized with InsB15-23 H-2Kd dtSCT exhibited low level of islet infiltration and low morbidity in 30 weeks old ( 9%) .But the frequency of IGRP206-214 specific CTLs in PBMC of 16 and 40 weeks old mice showed no difference.Conclusion:Membrane-expressed InsB15-23 H-2Kd dtSCT can protect NOD mice from type 1 diabetes mellitus in IGRP206-214 independent pattern.
10.Evaluation of the superiority of glargine as basal insulin replacement by continuous glucose monitoring system
Xianling WANG ; Juming LU ; Changyu PAN ; Yiming MU ; Jingtao DOU ; Jianming BA
Chinese Journal of Endocrinology and Metabolism 1986;0(04):-
With the continuous glucose monitoring system, daily blood glucose profiles were compared in type 2 diabetic patients treated with glargine or neutral protamine hagedorn (NPH) at bedtime for 12 weeks. The blood glucose levels in these patients were previously not well controlled with sulfonylureas. The results suggested that combined treatment with glargine before bedtime showed less nocturnal hypoglycemia and more stable blood glucose profile with less excursion when fasting blood glucose levels were well controlled.