1.The research progress on wound treatments of modified radical mastectomy
Wei PENG ; Linna OUYANG ; Wei ZHENG
Journal of Chinese Physician 2016;18(11):1751-1754
It is easy to appear subcutaneous exudate or flap necrosis after modified radical mastectomy.The treatments of wound are the committed step for the healing after operation.Recent years,there are different methods about the treating of wound after modified radical mastectomy.This article reviewed the treatments of wound after modified radical mastectomy to prevent the complication occurrence,shorten the time of the healing,and create the advantages for the comprehensive treatment.
2.Effect of estradiol on expressions of transforming growth factor ? and smoothelin in human prostatic stromal cells
Shaobin ZHENG ; Wei TANG ; Peng ZHANG
Chinese Journal of Urology 2000;0(05):-
Objective To investigate the relationships among estrogen,transforming growth factor ?(TGF?) and smooth muscle cells in human prostatic tissue by cell experiment. Methods Eleven strains of prostatic stromal cells were cultured successfully from BPH patients,and stimulated by estradiol(E 2).Cell proliferations were observed by MTT,and mRNA expressions of TGF? 1,TGF? 2 and smoothelin were observed by RT-PCR. Results E 2 could not influence TGF? 1 expressions in prostatic stromal cells,but could upregulate expressions of TGF? 2 and smoothelin;and expression values of TGF? 2 and smoothelin had a positive correlation. Conclusions E 2 can influence growth and differentiation of prostatic smooth muscle cells through induction of TGF? 2 expression.
3.Clinical observation on nursing interventions for improving the quality of life after radiotherapy in nasopharyngeal cancer
Peng WANG ; Wei ZHENG ; Fei LIU
Chinese Journal of Primary Medicine and Pharmacy 2008;15(4):558-559
Objective To investigate the effect of nursing interventions on the quality of life after radiotherapy in nasopharyngeal cancer. Methods 56 patients with nasopharyngeal cancer who received radiotherapy were randomly divided into control group and intervention group. All the patients were given conventional nursing interventions, and those in the intervention group were given accurate evaluation, enhanced psychological guide, reasonable dietary guide, and special nursing for preventing and treating complications. All the patients were evaluated by using quality of life questionnaire core 30 items(QOL-C30). Results The scores of the dimensions of somatic function,psychological function, social function and material life after interventions in the intervention group were significantly higher than those in the control group (P<0.05 ). Conclusion Nursing interventions can improve the quality of life, and the therapy can be completed smoothly.
4.A retrospective study of the clinical features in papillary thyroid microcarcinoma
Wei ZHENG ; Jian TAN ; Guizhi ZHANG ; Peng WANG ; Renfei WANG
Chinese Journal of Endocrinology and Metabolism 2015;31(1):14-17
Objective To identify clinical features of papillary thyroid microcarcinoma(PTMC) according to patients' age.Methods Seventy-eight patients with PTMC were divided into 2 groups according to age:≥45 years and <45 years.The clinical data were retrospectively analyzed.Results The average preoperative thyroglobulin (Tg)level in <45 years group was apparently higher than that in ≥45 years group[(138.61 ± 91.87 vs 80.20 ± 85.00) μg/L,P<0.01].The average tumor size in <45 years group was apparently larger than that in ≥45 years group [(0.64 ± 0.24 vs 0.45 ± 0.25) cm,P<0.01].There were more patients with multiple cancer foci in <45 years group than in ≥45 years group (73.53% vs 45.45%,P<0.05).And there were more patients with cancer in bilateral lobes in <45 years group than that in ≥45 years group(44.12% vs 18.18%,P<0.05).There were no significant differences in preoperative thyroid stimulating hormone level,preoperative thyroglobulin antibody (TgAb)level,incidence of capsular invasion of cancer,neck lymph nodes involvement,distant metastasis,and backgrounds of benign thyroid diseases between two groups (all P>0.05).Conclusion The patients with PTMCs had different clinical features according to age.Hence,clinicians should consider an individualized treatment according to age in order to achieve better therapeutic efficacy.
5.Characteristics of Biochemical Markers in Patients With Pulmonary Hypertension Related to Left Heart Disease
Peng JIN ; Wei ZHENG ; Wenzhu GU ; Yayu LAI ; Xiaojing WU
Chinese Circulation Journal 2016;31(4):362-366
Objective: To investigate the differences of biochemical markers between the patients with pulmonary hypertension related to left heart disease (PH-LHD) and LHD; to explore the sensitive bio markers which may predict PH in LHD patients. Methods: A total of 355 LHD patients admitted to our hospital from 2014-01 to 2015-05 were enrolled. According to 2009 ESC/ERS guidelines, PH was deifned by pulmonary artery systolic pressure (PASP)>50 mmHg and patients were divided into 2 groups: LHD group,n=224 and PH-LHD group,n=131. The basic information with blood levels of biomarkers was recorded and their accuracy for predicting PH was analyzed. Results: The pathogenesis of LHD included 184 (51.83%) patients of coronary heart disease, 90 (25.35%) of dilated cardiomyopathy and 81 (22.81%) of cardiac valve heart disease. Compared with LHD group, PH-LHD group had increased ratio of NYHA III and IV degree (89.31% vs 45.54%), decreased LVEF [42.0 (33.0, 59.0) % vs 60.0 (42.0, 65.0) %], all P<0.001; PH-LHD group presented elevated blood levels of BNP, bilirubin, red cell distribution width (RDW), uric acid and cystatin C, while reduced lipoprotein (HDL), allP<0.001. PASP was positively related to biomarkers as BNP, bilirubin, RDW, uric acid and cystatin C, while negatively related to HDL. With the combination of BNP, direct bilirubin and RDW, the predictive value for PH-LHD under ROC curve was 0.828 with the sensitivity at 0.813, speciifcity at 0.708. Conclusion: Blood levels of biochemical markers were statistically different between the patients of PH-LHD and LHD; the combination of BNP, direct bilirubin and RDW showed the higher accuracy for predicting PH occurrence in LHD patients.
7.The significance of expression of p16 and c-erbB-2 gene in breast cancer
Wei ZHENG ; Peng TANG ; Hong KANG ; Mingxing WEN ; Yongguo LI ;
Chinese Journal of General Surgery 1997;0(06):-
Objective To evaluate the relationship between the clinicopathological factors, prognosis and the expression of p16 and c erbB 2 protein in primary breast cancer. Methods The expression of p16 and c erbB 2 by immunohistochemical method was observed in 50 patients with primary breast cancer and the detection of p16 by polymerase chain reaction(PCR) and the point mutation of p16 by PCR single strand conformational polymorphism(SSCP) were detected in 20 patients with breast cancer. Results Among the cancers, positive expression of p16 protein was found in 17(34.00%) cases, c erbB 2 protein positive expression in 24(48.00%) cases. No homozygous deletion in p16 gene was found. However, exon2 point mutation of p16 gene was found in 1 of 20 breast cancer. The results showed no relationship between p16 expression and clinicopathological factor or prognosis. Positive expressions of c erbB 2 protein were often found in breast cancer with lymph node metastasis(P=0.0237) with a poor 5 year survivalrate(P=0.0169). There was no consistent relationship between the expression of p16 and c erbB 2 protein. Neither p16 nor c erbB 2 protein expression could be as an independent prognostic factor. Conclusions The patients with breast cancer of positive expression of c erbB 2 protein has a high lymph node metastasis rate and a poor survival rate. The point mutation rate of p16 gene is lower in primary breast cancer, and it can be a molecular events in advanced primary breast cancer.
8.Construction of functional and concatenated dimers of two-pore-domain potassium channel TREK-1
Peng PENG ; Rengong ZHUO ; Jianquan ZHENG ; Xiaoli WEI ; Xiaoyun MA ; Weixiu YUAN
Military Medical Sciences 2016;40(9):733-737
Objective To explore the feasibility of adding a flexible linker between two-pore-domain potassium channel TREK-1 (TWIK related K + channel 1)monomers to construct a tandem-linked dimer.Methods PCR was used to add a flexible linker between the two TREK-1 monomers.The cRNA obtained from in vitro transcription using the above vector was injected into Xenopus oocytes.After 24 -48 h,currents were recorded from these oocytes using a two-electrode voltage clamp.The effects of extracellular Ba2 + and pH on TdTREK-1 were observed and compared with those of native dimeric TREK-1.Results The tandem-linked dimeric TdTREK-1 was highly expressed in Xenopus oocytes.The currents through these channels were inhibited by extracellular Ba2 +and acidification.Furthermore,the responsiveness of the concatenated dimers to these extracellular stimuli was similar to that of native dimers.Conclusion Adding a flexible linker between the two monomers to construct the tandem-linked dimer does not affect the expression and gating properties of TREK-1, suggesting that the method be feasible.Such a method will allow the manipulation of a single subunit,which will help basis study the structure and function of TREK-1.
9.Cloning and Preliminary Analysis of the Stem Specific Promoter of Sugarcane
Wen-Wei CAI ; Zheng-Peng WANG ; Shu-Zhen ZHANG ; Ben-Peng YANG ;
China Biotechnology 2006;0(08):-
Sugarcane stem is an ideal organ for producing foreign pharmaceutical proteins and chemicals by genetic engineering.A perfect promoter driving foreign gene to express strongly and specifically in sugarcane stem is necessary for this purpose.In order to isolate a Sugarcane stem-specific promoter,a fragment of 1968bp nucleotide sequence(Ppst2a)upstream 5' of sugarcane pst2a gene,which was demonstrated to express specifically in sugarcane stem previously was isolated by using chromosomal walking.Bioinformatical analysis of this sequence shows that the sequence contains some typical elements of a promoter.To identify the stem-specific of this promoter,a construct was derived from pCAMBIA1301,which original CaMV 35S promoter was replaced by the 1968bp nucleotide sequence,and named as pCAMBIA1900.Transformations of pCAMBIA1900 and pCAMBIA1301 to leaves and stem pieces of sugarcane were carried out by using particle bombardment.The transient expression of gus showed that the gus expressed specifically in sugarcane with a little higher level compared with CaMV 35S.It is the first report that pst2a promoter is a potential stem-specific promoter which can further be used in transgenes into sugarcane.
10.A study of serum interleukin 6 and interleukin 18 in acute coronary syndrom patients with type D personality
Shue NING ; Peng QU ; Gang WEI ; Meili ZHENG ; Zheng SUI ; Dafei ZONG ; Xing ZHANG
Chinese Journal of Behavioral Medicine and Brain Science 2011;20(2):122-124
Objective To explore what kind of role serum interleukin 6 (IL-6) and interleukin 18 ( IL-18) play in the relationship between type D personality and acute coronary syndrom (ACS)prognosis.Methods Serum levels of IL-6,IL-18 in all 214 ACS patients were measured with ELISA.According to the scores of type D personality scale(DS14) ,the subjects were divided into the group with type D personality (50 cases)and the one without type D personality ( 164 cases).The serum IL-6 and IL-18 level between the two groups were detected and analyzed.Results There were 23.36% ACS patients with type D personality.The serum IL-6, IL-18levels of the group with type D in ACS acute stage and ACS recovery stage were (2.340 ± 0.081 )OD, (2.016 ±0.023 ) OD and ( 1.460 ± 0.070 ) OD, ( 1.313 ± 0.012 ) OD respectively, significantly higher than those of the group without type D (2.178 ± 0.180)OD, ( 1.849 ± 0.159)OD and ( 1.387 ± 0.091 )OD, ( 1.196 ± 0.132 ) OD respectively(P<0.01).Conclusion At home and abroad ,there are similar amount of ACS patients with type D personality.The high serum IL-6 and IL-18 levels may play an important role in pathogenesis of relationship between type D personality and ACS poor prognosis.