2.Advance of Ser/Thr Kinase Pololike Kinase 1 (Plk1) Research
Fu-Yin XIONG ; Hui-Yuan LIU ; Hong-Xing CHEN ; Ji-Xian DENG ;
China Biotechnology 2006;0(05):-
Pololike kinase 1(Plk1)contain an Nterminal Ser/Thr kinase catalytic domain and a Cterminal region that contains two poloboxes.As a key regulator of multiple steps during cell cycle across eukaryotic species,many proteins interact with Plk1.Plk1 is highly expressed in malignant cells and serves as a negative prognostic marker in specific human cancer types.Plk1 is a potential target for cancer therapy.Some novel smallmolecule inhibitors of pololike kinase 1 provide novel opportunities for cancerdrug discovery,such as BI 2536,ON01910.
3.Probe into rational target volume of nasopharyngeal carcinoma having been treated with conventional radiotherapy
Ying-Jie ZHENG ; Chong ZHAO ; Li-Xia LU ; Shao-Xiong WU ; Nian-Ji CUI ; Fu-Jin CHENG ;
Chinese Journal of Radiation Oncology 1992;0(04):-
Objective To analyze the local control rate and the desimetric patterns of local recurrence in nasopharyngeal carcinoma(NPC)patients having been treated with standardized conventional radiotherapy and to evaluate the delineation of rational target volume.Methods From Jan.2000 to Dec.2000,476 patients with untreated NPC were treated by standardized conventional radiotherapy alone at the Sun Yat-sen University Cancer Center.The radiation ports were designed on a X-ray simulator.The nasopharyngeal lesion demonstrated by CT scan and the subclinical spread regions adjacent to the nasopharynx were defined as the target volume.Kaplan- Meier method was used to calculate the cumulative local recurrence rate.For patients with locad recurrence,the primary and recurrent local tumor volumes(V_(nx),V_(recur))were delineated with three-dimensional treatment planning system(3DTPS),and the dataset of radiation ports and delivered prescription dose to the 3DTPS were transferred according to the first treatment.The dose of radiation received by V_(recur)was calculated and analyzed with dose- volume histogram(DVH).Local recurrence was classified as:1.“in-port”with 95% or mere of the recurrence volume((recur)_V_(95))was within the 95% isedase;2.“marginal”with 20% to95% of _(recur)V_(95)within the 95% isedese; 3.“outside”with only less than 20% of _(recur)_V_(95)within the 95% isodose curve.Results With the median follow- up of 42.5 months(range 8~54 months),52 patients developed local recurrence.The 1-,2-,3 and 4-year cumulative local failure rate was 0.6%,3.9%,8.7% and 11.5%,respectively.Among the 42 local recurrent patients who could be analyzed by 3DTPS,52% were in-port,40% were marginal and 7% were outside.For most of the marginal recurrence and all the outside recurrence patients,the main reason of recurrence were related to the unreasonable design of the radiation port and inaccuracy in the interpretation image findings.Conclusions The outcome of better local control rate and the dosimetric pattern of local recurrence show that the target volume is reasonable for NPC in Sun Yat-sen University Cancer Center.Enhancing the capability of correct interpretation of images,accurate design of the radiation pouts and making most useful molecular or functional imaging techniques to escalate the local radiation dose are promising ways to improve the local control further and better.
4.Lyman NTCP model analysis of radiaton-induced liver disease in hypofractionated conformal radiotherapy for primary liver carcinoma
Zhi-Yong XU ; Shi-Xiong LIANG ; Ji ZHU ; Jian-Dong ZHAO ; Xiao-Dong ZHU ; Xiao-Long FU ; Guo-Liang JIANG ;
Chinese Journal of Radiation Oncology 2005;0(06):-
Objective To-identify the factors associated with radiation-induced liver disease (RILD) and to describe the probability of RILD using the Lyman normal tissue complication(NTCP) model for primary liver carcinoma(PLC) treated with hypofractionated conformal therapy (CRT).Methods A total of 109 PLC patients treated with hypofractionated CRT were prospectively followed according to the Child-Pugh classification for liver cirrhosis,93 patients in class A and 16 in class B.The mean dose of radi- ation to the isocenter was (53.5?5.5) Gy,fractions of (4.8?0.5) Gy,with interfraction interval of 48 hours and irradiation 3 times per week.Maximal likelihood analysis yielded the best estimates of parameters of the Lyman NTCP model for all patients;Child-Pugh A and Child-Pugh B patients,respectively.Results Of all the patients,17 developed RILD (17/109),8 in Child-Pugh A(8/93 ) and 9 in Child-Pugh B(9/ 16).By multivariate analysis,only the Child-Pugh Grade of liver cirrhosis was the independent factor (P= 0.000) associated with the developing of RILD.The best estimates of the NTCP parameters for all 109 pa- tients were n=1.1,m=0.35 and TD_(50) (1)=38.5 Gy.The n,m,TD_(50) (1) estimated from patients with Child-Pugh A was 1.1,0.28,40.5 Gy,respectively,compared with 0.7,0.43,23 Gy respectively,for patients with Child-Pugh B.Conclusions Primary liver cancer patients who possess Child-Pugh B cirrho- sis would present a significantly greater susceptibility to RILD after hypofractionated CRT than patients with Child-Pugh A cirrhosis.The predominant risk factor for developing RILD is the severity of hepatic cirrhosis in the liver of PLC patients.
5.Clinical study of curing patients with perennial allergic rhinitis by qumin tongbi nasal spraying agent.
Xin-xin CHEN ; Ji-xiong FU ; Jian HUANG
Chinese Journal of Integrated Traditional and Western Medicine 2011;31(5):643-646
OBJECTIVETo study the mechanism of action and the therapeutic efficacy of treating patients with perennial allergic rhinitis by Qumin Tongbi Nasal Spraying Agent (QTNSA).
METHODSOne hundred and three patients with perennial allergic rhinitis were randomly assigned to two groups. Of them, 57 patients in the treatment group were treated with QTNSA and 46 patients in the control group were treated with Veconase. Seven days were taken as one therapeutic course, two courses in total. The therapeutic efficacy and the serum levels of interleukin-4 (IL-4), IL-8, immunoglobulin E (IgE) and nasal airway resistance (NAR), symptoms and signs integrals before and after treatment were observed in the two groups.
RESULTSThere was no statistical significance between the treatment group and the control group in the markedly effective rate (61.40% vs. 63. 04%) and the total effective rate (87.72% vs. 89.13%). After treatment symptoms and signs integrals of the two groups were significantly improved when compared with before treatment (P < 0.01). There was no significant difference between the two groups after treatment (P > 0.05). The serum levels of IL-4, IL-8, IgE, and NAR were significantly higher in the two groups than those of the normal group. They significantly decreased after treatment in the two groups, showing statistical difference (P < 0.01). There was no statistical difference between the treatment group and the control group (P > 0.05).
CONCLUSIONSQTNSA could effectively treat perennial allergic rhinitis. It could obviously lower serum levels of IL-4, IL-8, IgE, and NAR in patients with perennial allergic rhinitis.
Adolescent ; Adult ; Drugs, Chinese Herbal ; administration & dosage ; therapeutic use ; Female ; Humans ; Immunoglobulin E ; blood ; Interleukin-4 ; blood ; Interleukin-8 ; blood ; Male ; Middle Aged ; Nasal Sprays ; Phytotherapy ; Rhinitis, Allergic, Perennial ; blood ; drug therapy ; Young Adult
6.Analysis of the phenotype-genotype relationship of Hb Constant Spring.
Man-na SUN ; Fu XIONG ; Xin-hua ZHANG ; Ji-wu LOU ; Xiang-min XU
Chinese Journal of Medical Genetics 2010;27(5):481-483
OBJECTIVETo analyze the genotype-phenotype correlations in the Hb Constant Spring (HbCS) carriers, and to investigate the effect of HbCS on hematologic parameters.
METHODSComplete blood cell count and hemoglobin electrophoresis analyses were performed in 125 HbCS cases. The α-and β-thalassemia mutations were determined by reverse dot-blotting and Gap-PCR.
RESULTSThe presence of the SEA deletion or Hb Quong Sze (HbQS) with HbCS leads to HbH-CS disease. There was significant difference between HbH-CS and αCSα/-α, HbH-CS and αCSα/αα in the hematological parameters. The genotype of αCSα/-α or αα/αCSα had slight effect on hematological parameters. When the Hb Constant Spring mutation co-existed with heterozygous β-thalassemia, the hematological characteristics of β-thalassemia was presented. Only 57.6% of carriers with HbCS were detected by hemoglobin electrophoresis.
CONCLUSIONThe cases with co-existence of HbCS trait and other α-thalassemia trait, or β-thalassemia trait, showed variation in their red blood cell parameters. For such compound heterozygotes for HbCS and other α- or β-thalassaemia mutations, which were usually misdiagnosed in clinical screening by hemoglobin electrophoresis, accurate diagnose can be made by molecular diagnosis.
Adolescent ; Adult ; Aged ; Child ; Child, Preschool ; Female ; Genotype ; Hemoglobins ; genetics ; Hemoglobins, Abnormal ; genetics ; Heterozygote ; Humans ; Infant ; Male ; Middle Aged ; Phenotype ; Young Adult ; alpha-Thalassemia ; genetics ; beta-Thalassemia ; genetics
7.Emergency treatment of ureteric calculi during middle and late pregnancy by ureteroscopy
Hui WEN ; Kai-Yun BIN ; Bing-Fu HUANG ; Kai-Ming CHENG ; Shao-Xiong CHEN ; Yong-Xuan LIANG ; Ji-Qian NIU ; Dai-zhong CHEN ;
Chinese Journal of Urology 2001;0(07):-
Objective To evaluate the efficacy and safety of acute ureteroscopy for the treatment of ureterie stones during middle and late pregnancy.Methods From June 1998 to March 2005,17 pregnant women(mean age,27 years;age range,21-35 years)with ureteric stones were treated by ureteroscopy when the fetus was at 20-36 weeks of gestation(mean,29 weeks).All the cases presented with urgent symptoms such as recurrent renal colic(11 cases),fever(4)or acute obstructive anuria(2).Among 17 cases,the stones(between 6 mm?7 mm and 13 mm?21 mm)were located in the upper(8 cases),middle(5)or lower ureter(4);and on the left side(5 eases),on the right(10)and on both(2)of the lower ureter. Mild hydronephrosis were observed in 6 cases and moderate hydronephrosis in 11,Of the 17 cases,14 under- went ureteroscopic pneumatic lithotripsy;in 1 case the calculi were pushed to the renal pelvis;and 2 cases were treated by Double-J catheter drainage.Results All the urgent symptoms in 17 cases were relieved after treatment.The stone-free rate of initial treatment was 82.4%(14 of 17).Three cases with residual stones were treated by Douhle-J catheters,which were replaced every 3 months until the calculi were re- moved.No abortion,premature delivery or complications such as ureter perforation occurred.Mild renal colic occurred in 1 case after insertion of Douhle-J catheter,and it was relieved 3d later;gross hematuria occurred in l case and disappeared 6 d later without treatment.All 17 patients had normal delivery and gave birth to healthy children.Conclusions Ureteroscopy is a safe and reliable method for the treatment of ureteric calculi during middle and late pregnancy.
8.Images of primary hepatic angiosarcomas.
Mei-ling ZHOU ; Fu-Hua YAN ; Fang YE ; Zhuang XIONG ; Jian-hua WANG ; Yuan JI
Chinese Journal of Hepatology 2008;16(2):136-137
9.Characteristics of Pattern Visual Evoked Potential in Two Eyes with Varying Visual Acuity in One Eye and Forensic Application
Fu-Quan JIA ; Yu-Guang LIANG ; Xin-Yuan ZHANG ; Fang-Liang LUO ; Yan-He XIONG ; Long-Long CHENG ; Ji-Hui LIU
Journal of Huazhong University of Science and Technology (Medical Sciences) 2018;38(2):342-348
In this study,we aimed to study the pattern visual evoked potentials (P-VEPs) in two eyes with varying visual acuity in one eye and to provide an objective estimation of visual acuity by comparing P-VEPs in one and two eyes.Thirty subjects were chosen,who had one eye with an acuity of 5.0,4.85,4.6,4.0,or scieropia and obstructed vision and the other eye with an acuity of 5.0,respectively.P-VEPs were detected under the large grating stimuli at 3×4 spatial frequency,moderate grating stimuli (12× 16 spatial frequency) and small grating stimuli (48×64 spatial frequency).Under large grating stimuli,there was no significant difference in P100 peak latency between the groups,nor was there a significant difference between the amplitude of two eyes and the amplitude of one normal-vision eye.Under moderate and small grating stimuli,there was a significant difference in P100 peak latency between the group with both eyes having an acuity of 5.0 and the group with visual acuity below 4.0 in one eye.There was a significant difference in P100 amplitude between the group with visual acuity of 5.0 in both eyes and the group with one normal-vision eye.There was no significant difference in the amplitude of two eyes and the amplitude of one normal-vision eye between any other two groups.In forensic identification,characteristics and variability of P-VEPs in one and two eyes can be used to identify malingering or decline in visual acuity.
10.Necessity of setting up the course on clinical healthcare-associated infection according to case-based teaching method in medical higher education
Liang HUANG ; Hong-Jun DENG ; Zhen-Hua HE ; Cai-Hua FU ; Ji-Ying XIONG ; Fei DENG
Chinese Journal of Infection Control 2018;17(2):151-155
Objective To explore the necessity of setting up the course on clinical healthcare-associated infection (HAI) and effectiveness of the case-based teaching method in medical higher education.Methods 198 students who underwent internship in a hospital between July 2015 and July 2016 were selected,according to whether they selected clinical HAI coures,they were divided into course selective group(n =107,adopted case-based teaching method) and unselective group(n =91),questionnaire survey on the knowledge and attitude of HAI was carried out.Results The average score on HAI in selective group was higher than that of unselective group([85.3 ± 1.6] vs [58.3 ± 1.8],t =111.72,P<0.01).Before and after conducted case-based teaching method,21.49% and 47.66% of students actively studied respectively,difference was significant (x2 =16.195,P<0.01).Conclusion It is necessary to carry out a systematic course on HAI,case-based teaching method can improve the learning enthusiasm of students.