1.Mesenchymal stem cells and tumor metastasis
Journal of International Oncology 2011;38(12):905-907
Mesenchymal stem cells (MSCs) have been found to home to tissues/organs with irflammation,the sites of growing tumors,as well as to participate in the formation of the tumor micro-environment,suggesting that MSCs play important roles in tumor growth and metastasis.To study the roles and mechanisms of MSCs in tumor growth and metastasis will provide new insights into tumorigenesis and tumor target therapy.
2.Incision choice of nipple-areola complex-sparing mastectomy
China Oncology 2016;26(5):367-371
With the development of surgical techniques, the use of nipple-areola complex (NAC)-sparing mastectomy (NSM) has been increasing. Except for oncologic safety, the aesthetic outcome of surgery is greatly concerned by clinicians and patients. So far, there has been no consensus on the incision of NSM. This article reviewed the literature so as to provide some evidence for the selection of NSM incision.
3.Research progress in parathyroid hormone-related protein and diabetic nephropathy
Chinese Journal of Endocrinology and Metabolism 2014;30(11):1009-1011
Parathyroid hormone-related protein (PTHrP) and its receptor type 1 (PTH1 R) are extensively expressed in the kidney,where they are able to modulate renal function.Animal and human studies have shown that PTHrP acts as an important mediator of diabetic renal cell hypertrophy by a meehanism which involves the modulation of cell cycle regulatory proteins and TGF-β1.Furthermore,angiotensin Ⅱ (Ang Ⅱ) appears to be responsible for PTHrP upregulation in these conditions.These findings provide novel insights into the well-known protective effects of Ang Ⅱ antagonists in renal diseases,paving the wav for new therapeutic approaches.
4.The anti-rejection effect of blocking BT/CD28 co-stimulatory pathway by RNA interference in mice heart transplantation
Wei WANG ; Tong LIU ; Li-Wei ZHU ;
Chinese Journal of Organ Transplantation 2005;0(11):-
Objective To explore the influence of blocking B7/CD28 co-stimulatory pathway by RNA interference on the rejection response in mice heterogeneous heart transplantation and its mecha- nism.Methods siRNA of which sequence specified to CD80 and CD86mRNA was synthesized in vitro respectively and transfected into donor derived myeloid dendritic cells (DCs).The expression levels of CD80 and CD86 mRNA and surface antigen CD80,CD86 were assayed by semi-quantitative reverse transcription polymerase chain reaction and flow cytometry before and after CD80siRNA and CD86siRNA transfection.Seven days prior to heterogeneous heart transplantation in mice,DCs modi- fied by siRNA were transfused into recipients intraveneously (DC interference group).At the same time,group of allograft transplantation,cyclosporine A (CsA)-treated (CsA injected subcutaneously postoperatively,5 mg.kg~(-1)?d~(-1)) group,group of isograft transplantation,and non-interference DC group (transfusion of non-interfered DCs pre-transplanting) were assigned.The graft survivals were individually recorded and the graft rejection grading was pathologically evaluated.Interleukin 2 (IL- 2),interferon?(IFN-?),and IL-10 mRNA expression levels in grafts tissue were determined.Results After siRNA transfected into DC,the expression levels of CD80 and CD86 mRNA were down- regulated significantly and the the antigen CD80~+ and CD86~+ reduced from 84%,67% to 35% and 30% respectively.As compared with groups of allograft and non-interference DC,survival of the grafts was significantly longer in DC interference group (P<0.01),pathological grade of rejection significantly lower (P<0.01),IL-2 and IFN-?mRNA expression levels lower,and IL-10 mRNA ex- pression levels higher in grafts tissue (P<0.01).Conclusion Knocking down the molecule B7 expres- sion level in donor-derived myeloid DCs through RNAi,which could block B7/CD28 co-stimulatory pathway,could exhibit inhibitive effect on rejection response in mice heart transplantation.The mechanism might be due to induction of T lymphocyte anergy and Th cell differentiation deviating to T_H2.
5.Protective effects and mechanism of activin in neonatal rats with hypoxic ischemic brain damage.
Li AN ; Wei-wei ZHU ; Ping WANG ; Yong-li CAO
Chinese Journal of Pediatrics 2005;43(6):465-466
Activins
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administration & dosage
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pharmacology
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Animals
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Animals, Newborn
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Apoptosis
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drug effects
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Cerebral Cortex
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drug effects
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pathology
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ultrastructure
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Disease Models, Animal
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Dose-Response Relationship, Drug
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Female
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Hippocampus
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pathology
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ultrastructure
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Hypoxia-Ischemia, Brain
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drug therapy
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pathology
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Injections, Intraperitoneal
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Male
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Microscopy, Electron
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Neuroprotective Agents
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administration & dosage
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pharmacology
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Rats
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Rats, Wistar
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Treatment Outcome
6.Nursing care to ovarian cancer patients with early postoperative inflammatory intestinal obstruction
Minling ZHU ; Ping LIANG ; Li LI ; Wei WEI
Modern Clinical Nursing 2017;16(7):14-16
Objective To summarize the nursing key points in nursing ovarian cancer patients with early postoperative inflammatory intestinal obstruction after non-surgical treatment value. Method The nursing data of 32 ovarian cancer patients with early postoperative inflammatory intestinal obstruction in our department in January 2010 to October 2016 were retrospectively analyzed. Results About 32 patients were treated with non-surgical treatment, cure time within 2~30d, averaged (7.80 ±5.98)d. No intestinal obstruction happened after resuming to normal exhaustion, defecation and dieting. Conclusion Such nursing measures as psychological nursing, gastrointestinal decompression nursing, nutrition support nursing and auxiliary therapy like promoting peristalsis recovery are key to the increase of cure rate of early postoperative inflammatory intestinal obstruction.
7.Progress in the study of the association between abnormal triglyceride metabolism and insulin resistance
Chaoyu ZHU ; Li WEI ; Weiping JIA
Chinese Journal of Endocrinology and Metabolism 2011;27(4):357-359
Hypertriglyceridemia, and the ectopic deposition of triglycerides, are the risk factors for insulin resistance. To clarify the mechanism of regulations in triglyceride metabolism is an approach to the elucidation of pathogenesis and effective treatment of insulin resistance-related diseases.
8.Clinical study of myocardium injury in patients with severe brain injury
Huawen CHEN ; Wei ZHU ; Shusheng LI
Chinese Journal of Emergency Medicine 2012;21(6):577-580
ObjectiveTo explore heart rate variability (HRV),cardiac troponin Ⅰ (cTnI),left ventricular ejection fraction (LVEF) and electrocardiogram (ECG) in order to clarify the function of cardiac autonomic nerve system and the incidence of potential myocardium injury in patients with severe brain injury.MethodsClinical data of 65 patients with severe brain injury admitted between June 2006 and June 2010 were reviewed.For the sake of comparison,patients were divided by different groupings as per different biomarkers or outcomes such as Glasgow coma scale (GCS) 6 - 8 group and GCS 3 - 5 group; cTnl > 0.5 group,0.04 < cTnl < 0.5 group and CTnl < 0.04 group; and survival group and death group.Another 30 healthy subjects were enrolled as control group.Heart rate variability (HRV) was analyzed with both timedomain and frequency domain methods based on data from 24-hour Holter monitoring.The level of serum cardiac troponin Ⅰ was detected. The left ventricular ejection fraction was measured by beside color ultrasonogram.The different relationships between HRV and GCS as well as prognosis,between cTnI and GCS as well as fatality,between cTnI and ECG,and between EF and GCS were analyzed.The computer statistical software SPSS version 13.0 was used for statistical analysis of data.ResultsAll of the 65 patents with severe brain injury were subjected to decrease in HRV.The patients of GCS 6 - 8 group and GCS 3 - 5 group showed significantly lowered HRV in comparison with control group ( P < 0.05 ).The death group showed more obvious decrease in HRV than the survival group ( P < 0.05 ).Fifty-one of the 65 patients had myocardial injury evidenced by increase in cardiac troponin Ⅰ.The patients of cTnl >0.5 group and 0.04 <cTnI < 0.5 group showed significantly higher fatality compared with cTnI < 0.04 group ( P < 0.05 ).Compared with the GCS 6 ~ 8 group,more patients in the GCS 3 -5 group had abnormal serum CTnl level and lower EF.ConclusionsThere are cardiac autonomic nerve system disorders and different degrees of myocardial injury in patients with severe brain injury,and early intervention is essential to decrease the fatality of severe brain injury.
9.Rationality Analysis on Traditional Chinese Medicine Injection for Activating Blood Circulation Usage in Our Hospital
Huanli WEI ; Li ZHU ; Yani LUO
Chinese Journal of Information on Traditional Chinese Medicine 2014;(11):127-129,130
Objective To evaluate the usage situation and the trend of traditional Chinese medicine injection for activating blood circulation in our hospital. Methods The sales amount and drug use frequency (DDDs) and drug utilization index (DUI) of traditional Chinese medicine injection for activating blood circulation were sorted and analyzed in our hospital from the fourth quarter of 2011 to the third quarter of 2012. Results The total sales amount of traditional Chinese medicine injection for activating blood circulation gradually increased in our hospital during that time. The proportion of varieties with the ratio DUI sum/DDDs sort of closed to 1 (0.75≤order ratio≤1.25) in the three quarters of 2012 accounted for 53.33%, 53.33%, and 66.67%, respectively. This indicated that the usage of traditional Chinese medicine injection for activating blood circulation was more unreasonable, but tended to be reasonable. Conclusion The usage of traditional Chinese medicine injection for activating blood circulation was basically rational in our hospital, and efficacy of clinical pharmacist intervention was obvious. Effective and safe evaluation of traditional Chinese medicine injection can be further strengthened, in order to improve the efficacy and reduce the adverse reaction.
10.Progresses on the role of TNF recepetors in the pathogenesis of IBD
Xiaowei WEI ; Ning LI ; Weiming ZHU
Journal of Medical Postgraduates 2003;0(04):-
TNF-?,a pleiotropic cytokine with strong proinflammatory and immunomodulatory properties is known to play an important role in inflammatory bowel disease(IBD).The biological effects of TNF-? are elicited by binding to its two cognate recepters,TNFR1 and TNFR2.For a long time,TNF-R1 was considered to be the predominant mediator of TNF-signaling,whereas TNF-R2 was ascribed only auxilliary function.However,there is increasing clinical and experimental evidence for an important independent role of TNF-?/TNFR2 signaling in chronic inflammatory conditions of IBD.The elucidation of the different effects of TNF-signaling in IBD will lead to a better understanding ot the pathogenesis of these diseases and will be the basis for the development of more specific and more efficient therapeutic approaches.