1.Development of clinical and basic research in gynecological oncology
China Oncology 2006;0(11):-
With the emergence of new concepts, methods and techniques in modern medicine, the basic research and clinical treatment for gynecological oncology has rapidly developed in the past couple of years. Evidence-based medicine, individualized therapy and microinvasive therapy give us more opportunities to treat the patient. Nowadays, it is possible for the clinic to implement new approaches to improve the outcome and the quality of life for the patients with minimal side effects at the same time. There has been a lot of reports from in vitro studies suggesting that gonadotrophin may play an important role in tumorigenesis, estrogen may promote tumor cell proliferation through PAX2 gene. Survivin, a protein serving as an apoptosis inhibitor, may be crucial for the regulation of tumor cell proliferation and apoptosis.
2.Clinical analysis of cetuximab combined with intensity modulated radiation therapy in treatment of local regionally advanced nasopharyngeal carcinoma
Yijing YE ; Xiaojun LU ; Feng LEI
Chinese Journal of Primary Medicine and Pharmacy 2011;18(24):3323-3325
ObjectiveTo evaluate the efficacy and toxicity in local regionally advanced nasopharyngeal carcinoma(NPC) patients treated by cetuximab combined with intensity modulated radiation therapy.Methods58 cases of untreated NPC patients were randomly divided into treatment group and control group.The treatment group was given the treatment of cetuximab combined with intensity modulated radiation therapy,the control group was given the treatment of intensity modulated radiation therapy.The short-term efficacy and toxicity were evaluated,followed up for 1-year the objective response was evaluated.ResultsAfter treatment and 3 months after treatment,the CR rate of the nasopharynx and cervical lymph node of the treatment group were higher than the control group,compared with control group the difference was significant(P <0.05) ;Follow-up rate was 100%,the median follow-up time was 12 months,all patients were no deaths in the follow-up period; the local control rate of the treatment group was 89.3%,it was higher than the control group(73.3% ),compared with control group the difference was significant( P <0.05) ;The distant metastasis rate of the treatment group was 3.6%,it was lower than the control group(23.3 % ),compared with control group the difference was significant( P <0.05) ;Most acute toxicity of the two groups were 1 to 2 degrees,and the difference was not statistically significant( P > 0.05 ) ; During the treatment,28 patients of the treatment group occurred acne-like rash,after symptomatic treatment and nutritional support therapy was initiated.ConclusionThe cetuximab combined with intensity modulated radiation therapy in treatment of local regionally advanced nasopharyngeal carcinoma had better efficacy and lower toxicity,the therapy method was worthy to be popularized.
3.The effect of MOTOmed movement therapy on balance and ability in the activities of daily living in patients with hemiplegia after stroke
Chong CHEN ; Xiaoping GAO ; Xiaojun FENG
Chinese Journal of Physical Medicine and Rehabilitation 2010;32(7):510-512
Objective To investigate the effect of MOTOmed movement therapy on balance and ability in the activities of daily living (ADL) of convalescing stroke patients with hemiplegia. Methods Forty convalescent stroke patients exhibiting hemiplegia were randomly divided into a treatment group and a control group with 20 cases in each group. The control group received routine rehabilitation training; the treatment group received MOTOmed training in addition. Balance function of all the patients was assessed using Berg's balance scale (BBS) , and the Barthel Index ( BI) was used to assess ADL ability at the beginning of the program and after 6 weeks of treatment. Results Balance and ADL ability improved significantly in both groups after 6 weeks of treatment. The effect in the treatment group was significantly better than in the control group. Balance and ADL ability were positively correlated. Conclusions Applying MOTOmed therapy along with routine rehabilitation training can distinctly improve balance and the ADL ability of hemiplegics after stroke.
4.Updates of application of decellularized liver bioscaffold
Xudong WEN ; Xiaojun WANG ; Feng XIA
Chinese Journal of Digestive Surgery 2015;14(1):85-89
Replacement therapy is the most effective method for the treatment of end-stage liver disease,and decellularized liver bioscaffold broadens the research field of the replacement therapy.The present liver bioscaffold preparation is to perfuse chemical reagents (detergents,enzymes,et al) into the vascular structure of the liver under certain physical conditions,so as to remove cellular components and retain extracellular matrix and microvascular structure.Cells were reseeded into the decellularized liver scaffold to obtain the recellularized liver,which can be cultured and evaluated in vitro or in vivo by observing the adhesion of seeded cells,detecting the synthesis and secretion of the recellularized liver.Currently,the selection of seed cells,recellularization protocol and recellularized liver transplantation are still under exploration.In this review,the preparation,evaluation,detection and application of the decellularized liver bioscaffold are introduced for the further experimental study and clinical research.
5.Development of model S2000 surgeon backpack and medical corpsman backpack
Xiaojun SUN ; Feng TIAN ; Wanyu GAO
Chinese Medical Equipment Journal 2003;0(S1):-
This paper introduces the surgeon backpack and medical corpsman backpack which are newly developed for PLA.The twokinds of backpacks being waterproof,water can't penetrate intothem when they are in the rain or floating on water.The basic performance experiments,ergonomics tests and army tryout are performed.The results show that the backpacks are designed reasonably and easy touse.The burthen on the whole backpacks is distributed in the equipment uniformly due toits structure.The physical energy consumption of the person carrying the backpacks decreases due tothe same reason.The medical equipments in the backpacks can accomplish the first aid operations such as binding up,stanching,acesodyne,fastness,ventilation,infection prevention and anti-shock.
6.Vertebra reduction after treatment of severe vertebral compressive fractures by kyphoplasty
Tao LIU ; Jichuan FENG ; Ruili ZHUO ; Xiaojun QIANG
Chinese Journal of Tissue Engineering Research 2013;(43):7540-7545
BACKGROUND:Due to the puncture and difficult reduction, severe vertebral compressive fracture is considered to be the relative contraindication of vertebroplasty and kyphoplasty. OBJECTIVE:To investigate the vertebra reduction after the treatment of severe vertebral compressive fractures with percutaneous kyphoplasty. METHODS:Thirty patients (42 vertebral bodies) with severe compressive fractures were included. The compressive rate of the affected vertebral bodies was 75%-83%. The direction of percutaneous puncture was guided under digital subtraction angiography, and then postural reduction and local kyphoplasty were performed. After satisfactory reduction, bone cement was injected. RESULTS AND CONCLUSION:Al the 30 patients tolerated procedure wel . The mean height of the anterior, mid and posterior vertebral body was improved from (0.48±0.17) cm, (0.83±0.23) cm and (2.44±0.33) cm preoperatively to (0.71±0.22) cm, (1.21±0.25) cm and (2.44±0.33) cm respectively after operation. The postoperative height of the anterior, mid and posterior vertebral body was significantly higher than that before operation. The visual analogue scale score after treatment was significantly lower than that before operation. The results indicate that percutaneous kyphoplasty can ease pain, restore vertebral body height and improve quality of life of the patients with severe vertebral compressive fractures.
7.Abnormal vascular endothelial cell junctions caused by PDK1 deficiency
Qiuting FENG ; Xiaojun QIAN ; Xin XU ; Yan JIN ; Chengjian YANG
The Journal of Practical Medicine 2014;(17):2706-2708
Objective To reveal the role of PDK1 in vascular endothelial cells. Methods PDK1 was knocked out in endothelial cells by recombinase-mediated Cre to observe it′s effects on vascular endothelial cells. Results Abnormality of vascular development in rats could be found as a result of endothelial PDK1 deletion. Meanwhile, vascular leakage and bleeding phenotype were observed, and tissue analysis showed vascular endothelial cells abnormalities. Conclusions PDK1 plays an important role in the functioning and integrity of vascular endothelial cells, which made tentative explanation for PDK1-Akt signal path and laid basis for further research.
8.Astaxanthin inhibits sodium azide-induced cytotoxicity in hepatocyte L-02 cells probably by H+ transferring function.
Jian MA ; Haimin CHEN ; Xiaojun YAN ; Feng WANG ; Weifeng XU
Acta Pharmaceutica Sinica 2011;46(5):521-6
This study is to investigate the protective effect of astaxanthin against injured hepatocyte L-02 cells induced by sodium azide (NaN3) and reveal the possible mechanisms. Hepatocyte L-02 cells were exposed to 100 mmol.L-1 NaN3 with various concentrations of astaxanthin pre-incubated, then the cell viability was measured by MTT method; The level of reactive oxygen species (ROS) was determined by DCFH-DA method; The changes of mitochondrial membrane potential (MMP) and apoptosis ratio were detected by JC-1 method and Annexin V-FITC/PI double stain method, respectively. Results showed that after cells were exposed to 100 mmol.L-1 NaN3 for 3 hours, the cell viability significantly decreased; ROS level and the percentage of late phase apoptosis increased obviously; MMP was also declined. When cells were pretreated with astaxanthin, the cell damage and late phase apoptosis ratio reduced and MMP was maintained. However, the level of ROS showed insignificant decrease (P>0.05). The beneficial concentration of astaxanthin in improving cell viability and MMP was not in a dose dependent manner and the most effective of which was 0.10 nmol.L-1 (P<0.01). In order to reveal its possible non-antioxidant mechanism, mitochondrial membrane was imitated and H+ transferring function of astaxanthin was also detected by bilayer lipid membrane (BLM) method. Results showed that 2.0% astaxanthin could transfer H+ efficiently. These suggested the mechanisms of astaxanthin in protection of hepatocyte L-02 cells not via its ROS quenching capability but via its H+ transferring function, which improved the mitochondrial function and had the sequence biology effects.
9.Relationship between oxidative stress and endothelial cell apoptosis in patients with obstructive sleep apnea-hypoventilation syndrome
Zhihong FENG ; Xiuhong NIE ; Lianguo ZHANG ; Xiaojun FAN
Chinese Journal of General Practitioners 2009;8(4):245-248
Objective To study the relationship between oxidative stress and endothelial cell apoptosis in patients with obstructive sleep apnea-hypoventilation syndrome (OSAHS). Methods Sixth-seven patients definitely diagnosed by potysomnography (PSG) as OSAHS were divided into three groups according to their apnea-hypoventilation index (AHI), 14 in mild group (5 < AHI≤20), 21 in moderate group (20 < AHI≤40) and 32 in severe group (AHI 40). And, 18 healthy persons (AHI <5) were recruited as controls. Blood samples were obtained form all of them after PSG performance for measuring apoptotic endothelial cells (CD146AnnV+) and serum levels of superoxide dismutase (SOD) and malondialdehyde (MDA). Results Serum level of MDA and CD146AnnV+ in moderate and severe OSAHS group were significantly higher than those in control group (all P < 0.05). Serum level of SOD in moderate and severe OSAHS group was significantly lower than that in control group (P < 0.05). CD146AnnV+ correlated positively with AHI, the longest apnea time (LAT) and oxygen desaturation index (ODI) (r = 0.778, 0.609 and 0.689, respectively, all P < 0.05) and correlated reversely with saturation of arterial blood oxygen at night (SaO2min) (r =-0.635, P < 0.01). CD146AAnnV+ correlated positively with serum level of MDA (r = 0. 698, P < 0.01), and correlated reversely with serum level of SOD (r =-0.705, P < 0.01). Results of linear multivariate regression analysis showed that AHI, serum levels of SOD and MDA were independent risk factors for endothelial cells apoptosis in patients with OSAHS. Conclusions There existed oxidative stress due to intermittent hypoxia in patients with OSAHS, which could be one of the major causes in exacerbating endothelial damage.
10.Topiramate for prevention of weight gain with olanzapine:a Meta-analysis
Lili ZHEN ; Xingfu ZHAO ; Guanghai PENG ; Xiaojun ZOU ; Feng YI
Chongqing Medicine 2015;(3):345-348
Objective To assess whether topiramate prevents body weight gain in patients with olanzapine .Methods The ran‐domized controlled trials(RCTs) about topiramate for prevention of weight gain with olanzapine from 1998 to 2013 were searched in the Cochrane Library ,Pubmed ,EMbase ,WanFang Data ,CNKI and VIP .Two reviewers independently screened the literatures ,ex‐tracted the data ,and evaluated the methodological quality .Then Meta‐analyses were conducted by using RevMan 5 .1 software .Re‐sults The total of 11 RCTs were included .Among the 549 patients were involved .The results of Meta‐analyses showed that the ef‐ficacy of the topiramate group was superior to that of the control group in lessen body mass with significant difference (MD= -3 .68 ,95% CI:-5 .16- -2 .19 ,Z=4 .86 ,P<0 .01) .Conclusion Topiramate addition therapy is effective in attenuating olanzapine‐induced weight gain .