1.Regulation of Jagged1 expression by its receptor Notch1 in prostate cancer PC3 cells
Qin NI ; Hefeng YU ; Zesheng WANG
Basic & Clinical Medicine 2006;0(06):-
Objective To investigate the effect of Notch1 and Jagged1 on the growth of prostate cancer PC3 cells and the regulation of Jagged1 expression by its receptor Notch1 in PC3. Methods Notch1 and Jagged1 expression were inhibited by siRNA interference. The growth rate of PC3 cells was measured by MTT. Notch1 expression was inhibited by siRNA interference and promoted by transfection of Notch1 cDNA. The changes of Notch1 and Jagged1 protein and mRNA levels were measured by Western blot and Real-time RCR. Results The growth of PC3 cells decreased after inhibiting Notch1 and Jagged1 expression. Jagged1 protein level decreased after inhibiting Notch1 expression and increased after over-expressing Notch1. Moreover, the change of Jagged1 protein level was discordant with the situation of mRNA. Conclusion In PC3 cells, Notch1 and Jagged1 are important to cell growth. Notch1 may regulate Jagged1 expression.
2.Study of Intelligence in Cerebral Infarction Patients
Zongen GAO ; Yunsheng WANG ; Hefeng SONG
Chinese Journal of Clinical Psychology 1993;0(01):-
To observe the changes of intelligence in cerebral infarction patients, and to explore the relationship between intelligence and brain CT feature. Methods:The intelligence was measured by WAIS-RC in 80 cerebral infarction patients.Results:The VIQ and FIQ reduced significantly in the patients with hypertension. FIQ in patients with diabetes mellitus and PIQ in patients with cerebral vesscular disease histories reduced significantly. The PIQ reduced significantly in the patients of right focus on CT. VIQ, PIQ and FIQ reduced significantly in patients of cerebral cortices involved. But the number of focus, thalamus involved and cerebral atrophy were of no significance.Conclusion:The intelligence of the cerebral infarction patients companying hypertension, diabetes mellitus and several cerebral vesscular disease histories was impaired significantly. Cerebral cortices involed was the most important factor among the features on CT relating to intelligence quotient.
3.Experimental Study on the Anti-inflammatory Action of Xiaoyan Quzhi Tablet
Hefeng LIU ; Zijiang LONG ; Tongsheng WANG
China Pharmacy 1991;0(01):-
OBJECTIVE:To study the anti-inflammatory action of Xiaoyan Quzhi tablets(XQT).METHODS:To observe the degree of swelling of rat feet and the changes of dry-weight and wet-weight of cotton-ball granulation tissue after using the XQT for one week.RESULTS:The XQT could obviously inhibit the swelling of the feet with significant differences between experiment group and control group(P
4.Effects of Xiaoyan Quzhi Tablet on Immunologic Functions in Mice
Hefeng LIU ; Zijiang LONG ; Tongsheng WANG
China Pharmacy 1991;0(04):-
OBJECTIVE:To study the effects of Xiaoyan Quzhi tablet(XYQZ) on specific and non-specific immunologic functions in mice METHODS:The phagocytosis of mononuclear phagocytes in mice was measured by carbon powder clearance method Chicken serum hemolysin level in the mice immunized by chicken red blood cell was measured with 721-spectrophotometer RESULTS:XYQZ could obviously increase the phagocytosis of mononuclear phagocytes and promote B-lymphocytes to produce serum antibody There were significant differences between experiment group and control group(P
5.Evaluation of the effect of plant nursing formulation on rabbit with mannitol- induced phlebitis
Zilin QUAN ; Yuxue LIU ; Huiqin FU ; Hefeng SHEN ; Ping WANG
Chinese Journal of Practical Nursing 2012;28(14):12-15
Objective To research the best plant treatment formulation of flos carthami,aloe vera and potato on mannitol-induced phlebitis in rabbits. Methods Using mannitol-induced phlebitis model in rabbits,the experimental groups contained simple dosage and mixture of three plants,the control groups were blank control group and 95% ethanol group.The curative effects of phlebitis treatment were observed between groups. Results The curative effect of aloe vera and potato mixture group was the best compared with other groups. Conclusions All of the three plants have good curative effects on mannitol-induced phlebitis,and the best plant treatment formulation was aloevera and potato mix-using.
6.Analysis of positioning errors and weight variability in the radiation for head and neck cancer based on cone-beam computed tomography
Tingting ZHUANG ; Hefeng GUO ; Guoxi WANG ; Zhengzhong LIN ; Zhijian CHEN
Cancer Research and Clinic 2015;27(2):91-94,106
Objective To analyzed the effects of the positioning errors and weight variability of the head and neck cancer patients with intensity modulated radiation therapy (IMRT),or volumetric modulated arctherapy (VMAT) based on the kilovoltage cone-beam computed tomography (kV-CBCT).Methods CBCT images of 102 patients with head and neck cancer patients receiving IMRT or VMAT were screened by CBCT once a week for consecutively 6 weeks.The positioning errors were measured by comparing CBCT and planning CT in left-right (LR),anterior-posterior (AP) and cranio-caudal (CC) directions.Meanwhile,the weight of patients were measured every week.Results The positioning errors were (0.011 5±0.125 3) cm,(-0.017 6±0.123 3) cm and (-0.014 1±0.156 7) cm in LR,AP and CC directions,respectively.The mean systematic errors were all less than 0.02 cm in three axial directions,while the mean random errors were all within 0.2 cm.There was no statistically significant difference was observed among the setup errors in all three axial directions according to different week.Though the body weight of patients continued to drop during the radiation by with the mean weight loss of 3.5 kg and had a negative correlation with treatment course.Bivariate correlation analysis showed just the positioning errors in CC direction were significantly correlated with body weights loss.Conclusion There is no statistical relationship with in position errors of the patients with their treatment course,and the body weight loss seemed to influence the position errors in CC direction.
7.Analysis of 1 065 Prescriptions Containing Potassium Chloride Injection
Wei ZHANG ; Jingjing LIU ; Yansheng KANG ; Xiaoqin WANG ; Yilei WANG ; Xiaoya XU ; Hefeng ZHANG
China Pharmacy 2015;(20):2768-2770
OBJECTIVE:To provide reference for the rational use of Potassium chloride injection and the management of high-risk drugs. METHODS:A total of 1 065 prescriptions containing Potassium chloride injection during the first half year of 2014 were analyzed retrospectively according to“Rules for Comment on Prescriptions”. RESULTS:The qualification rate of pre-scription was 95%. The irrational prescriptions accounted for 5%. The main problems included unreasonable route of administra-tion,unreasonable selection of solvent,incompatibility with TCM injection and other types of injections as well as the risk of Potas-sium chloride injection combined with a few oral drugs. CONCLUSIONS:The defect still exist in the management of high-risk drug aspotassiam chloride injection in our hospital,so that the hospital should set up high-risk drug prescription special review sys-tem and emergency plan which is the effective way for avoiding the drug risk of high-risk drugs.
8.Preparation,stability and in vitro activity of egg yolk immunoglobulin Y against human Sucrase
Min SHAO ; Xinying WANG ; Yucong LU ; Min WANG ; Kun FENG ; Nina WEI ; Fengxia DU ; Hefeng ZHOU
Chinese Journal of Immunology 2016;32(12):1785-1789
Objective:To prepare the egg yolk immunoglobulin Y ( IgY) against human Sucrase and study its stability,in vitro activity. Methods:Hy-line laying hens were immunized with human Sucrase protein,IgY was isolated and purified from egg yolks of im-munized hens using water dilution and salting out method. Indirect ELISA was used to evaluate the titer and stability of IgY. The purity and specificity of IgY were analysed by SDS-PAGE and Western blot respectively. The inhibitory effects of IgY on α-glucosidase was studied by PNPG method. Results:Indirect ELISA results showed IgY could be detected on the tenth day after the first immunization, and the peak titer of IgY was 1:12 800 after the 40th day of immunization. SDS-PAGE showed that the heavy chain and light chain of IgY were 65 kD and 25 kD respectively, and the IgY against human Sucrase could specifically recognize the protein of human Sucrase. The IgY maintained primary titer when it was kept between 29-69℃ for 15 min,and pH 4-7,37℃,4 h. The titer of IgY was maintained 50% after digestion by pepsin and trypsin respectively for 2 hours. IgY had a higher resistence to pepsin than trypsin after longer digestion time. IgY showed an inhibitory effect on α-glucosidase in concentration dependent manner. The half inhibitory concentration (IC50) was 0. 540 mg/ml. Conclusion:The IgY against human Sucrase has been successfully obtained,which established foundations for its study of Type 2 diabetes mellitus rat models in vivo.
9.Gene mutations of human immunodeficiency virus drug resistance from men who have sex with men in Shanghai,2013
Jian WU ; Xuqin WANG ; Hefeng YIN ; Jialin YUAN ; Xiaolei YU ; Yanqiu ZHOU ; Min ZHENG ; Jin GAI ; Jing TAO ; Laiyi KANG
Chinese Journal of Infectious Diseases 2016;34(1):23-26
Objective To investigate the gene mutations of human immunodeficiency virus (HIV)‐1 drug resistance among anti‐retrovirus (ARV ) treated‐naive men who have sex with men (MSM ) in Shanghai to provide evidence‐based data for optimized treatment .Methods All 669 treatment‐nave cases of HIV‐1 infection identified among MSM in 2013 were recruited and their plasma was collected .RNA was extracted and amplified by nest reverse transcription‐polymerase chain reaction ,and DNA was sequenced and then phylogenetically analyzed .Finally ,subtypes were identified and drug resistance was analyzed in comparison with International HIV Drug Resistance Database .Results The pol gene fragments of 645 cases were obtained .Primary drug‐resistance rate was 2 .48% (16/645) ,including mutations conferring resistance to protease inhibitor (PI) (0 .31% ,2/645) ,nucleoside reverse transcriptase inhibitors (NRTI) (0 .16% ,1/645) ,non‐nucleoside reverse transcriptase inhibitors (NNRTI) (1 .70% ,11/645) and both NRTI and NNRTI (0 .31% ,2/645) ,respectively .Mutations conferring resistance to CRF01_AE were 12 cases (2 .99% ) ,while mutations conferring resistance to CRF07_BC and CRF_01B were 0 .61%(1/163) and 4 .65% (2/43 ) including 1 case of CRF52_01B and unidentified CRF_01B , respectively . Resistance to NNRTI in B subtype were 2 .70% (1/37) .Conclusion The prevalence of HIV‐1 drug resistance‐associated mutations among MSM in Shanghai ,2013 is still low ,but resistance to NNRTI is relatively high .CRF01_AE is the major subtype of drug resistance .It is necessary to strengthen the HIV drug resistance surveillance in MSM group in Shanghai .
10.Loss of response to infliximab in patients with perianal fistulizing Crohn's disease:a case report
Chinese Journal of Pharmacoepidemiology 2024;33(8):949-954
A refractory Crohn's disease patient with recurrent perianal fistulas failed to overcome the secondary loss of response to infliximab(IFX)after therapeutic drug monitoring,intensified anti-TNF dosing and in combination with azathioprine.Throughout the treatment process,clinical pharmacists assisted physicians in analyzing the risk factors and causes for loss of response,providing evidence for an individualized treatment strategy,and monitoring the efficacy and safety of the treatment.According to the relevant guidelines and literature,ustekinumab was the preferred biological agent after anti-TNF failure in perianal fistulizing Crohn's disease(pfCD).At the 12-week follow-up,fecal calprotectin and C-reactive protein decreased markedly,and the patient achieved fistula healing.This case provides references for current management strategy and perspective in IFX secondary non-responders with refractory pfCD,especially those who have undergone optimization therapy.