Construction strategy of human organ donation social mission system in China / 中国组织工程研究

BACKGROUND:By analyzing the current difficulties faced by human organ transplantation and social factors which lead to organ transplant donor shortage in China, people are found to be generaly lack of knowledge about organ transplant and donation process. OBJECTIVE: To make a tentative probe into the construction of organ donation social mission system on four aspects, namely the importance, ethical principles, current situation and countermeasures, and to provide scientific advice and information for organ donation publicity and education. METHODS: Articles about organ donation and organ transplantation were retrieved from CQVIP, CNKI, Wanfang, PubMed, Medline System from January 2005 to November 2014 with the key words of “organ donation, organ transplantation, shortage of donor, body donation, education system” in both Chinese and English. After secondary manual retrieval of organ donation coordinator, literature were included if they involved organ donation coordinator and organ donation and transplantation related policies and regulations. This paper put forward countermeasures for the construction of human organ donation social mission system in China based on the literature induction. RESULTS AND CONCLUSION:This paper describes the necessity of organ donation education system, systematicaly analyzes the existing problems for current organ donation education problems and ethical principles that should be folowed, and explore the construction strategy of human organ donation social mission system in China. The way to relieve tension of organ transplant donor and expand donor sources is to win broad support and understanding of citizens, which can ensure the sustainable development of organ donation work. So, it is very important to build the human organ donation social mission system.

Practice and thinking of quality management of organ procurement organization / 中国组织工程研究

BACKGROUND:With the introduction of related policies on organ procurement and distribution, the organ procurement and standards of the organ procurement have a clear operational criteria, as wel as how to al ocate organs. But the work processes and organizational positioning on organ procurement organization are not enough elaborated and normal. OBJECTIVE:To analyze the experience of Guangzhou General Hospital of Guangzhou Military Command as the organ procurement organization units in quality management, timely review working progress and explore areas for improvement, which provide the corresponding countermeasures for enhancing quality management and establishing the efficient and professional organ procurement organization. METHODS:A computer-based online search in CNKI database and PubMed database was performed with the keywords of“organ donation, organ transplantation, Organ Procurement Organization, quality management”in English and Chinese by screening titles and abstracts. RESULTS AND CONCLUSION:According to relevant laws and regulations, Guangzhou General Hospital of Guangzhou Military Command formulates a standard evaluation standard and sets up the team, thus achieving the reunification of the responsibilities and powers. At the same time, they improve the relevant organ donation,acquisition, preservation, registration, and design different quality management plans according to these different aspects. In addition, In addition, the hospital hold regular coordinator training and make it standardization. Through a series of quality management measures, the hospital organ procurement organization has gradual y regularized and achieved some results. It is recommended to further strengthen scientific research, achieve the unification of efficiency and effectiveness of scientific research;improve the awareness of the hospital leaders, consummate the mechanism of organ procurement;focus on personnel training, improve the professional quality of the organization members;enhance information management, achieve multi-disciplinary col aboration;build quality evaluation system, achieve the whole process of quality management;emphasize on medical ethics, and promote the harmony between the hospital and the patient.

Clinical and pathological features of nonfunctional pituitary adenomas: Analysis of 220 cases / 中华内分泌代谢杂志

A retrospective analysis was carried out in 220 cases of nonfunctional pituitary adenoma (NFA).The diagnosis was based on negative immunohistochemical staining,no elevation of plasma hormone level,and no symptom caused by increased hormone level.Incidence of NFA was the highest(33.13％) among the pituitary tumors.It was more common in males than in females (132 ∶ 88).The highest prevalence resided in the elder group.N FA often caused pituitary apoplexy,and mainly presented as compression symptoms including visual field abnormalities (85.00％),headache (80％),hypopsia (68.66％),and other symptoms of hypopituitarism (44.04％).Imaging features showed tumor size usually within 2-4 cm (71.82％),and aggregated degree Ⅲ or Ⅳ (83.64％).

An epidemiological analysis of pituitary apoplexy / 中华内分泌代谢杂志

Objective To analyze the epidemiological characteristics of pituitary apoplexy and investigate the changes and features of endocrine hormones caused by pituitary apoplexy.Methods A retrospective analysis of the clinical and laboratory data of pituitary tumor and pituitary apoplexy was carried out.Results (1) The incidence of pituitary apoplexy was 31.78％,patients were 15-75 (47.5 ± 11.7) year old,most patients were female.(2)Diabetes,coronary heart disease,menopausal hormone therapy,radiotherapy,surgery,and bromocriptine administration may be related to pituitary apoplexy.(3) There was high incidence of apoplexy in nonfunctioning adenoma.(4) According to the relationship between apoplexy and pituitary tumor,cases with pituitary apoplexy were divided into 5 types.(5) Pituitary apoplexy was associated with low serum creatinine,hypernatremia,hyperchloremia,hypoeosinophilia,and hypobasophilia.(6) 61.61％ of the patients had pituitary hormone deficiency,especially the GnH deficiency.(7)98.10％ of the patients were treated by surgery.Conclusion Pituitary apoplexy has its own clinical characteristics,and more attention should be paid in clinical practice.

Anterior pituitary hypofunction: a clinical analysis of 117 cases / 中华内分泌代谢杂志

Objective To investigate the clinical features of anterior pituitary hypofunction.Methods A retrospective analysis was carried out on the data of 117 patients with anterior pituitary hypofunction during 1994-2010.Results There were 60.68％ male and 39.32％ female patients respectively.The onset age was from 13 to 79 years,with 79.12％ of the patients more than 40 years old.There were 57 cases with sellar tumors ( 40.17％ ),in which 55 cases( 96.49％ )were operated and (or) treated with radiotherapy.35 cases were operated via the frontal approaches( 66.04％ ) and 18 cases underwent transsphenoidal surgery ( 33.96％ ).There were 108 cases with hyponatremia with the first symptoms of weakness,anorexia,nausea,and vomiting induced by ACTH deficiency (92.31％ ).There were 23 cases accompanied with central diabetes insipidus( 19.66％ )and 82 cases with coronary heart disease( 70.09％ ).Conclusion Owing to the difference in etiological factors,the incidence,early symptoms,and the hormones involved are greatly different.The main cause is pituitary tumor,which occured more in aged person,more in males than females.

Clinical Analysis of the Heart Rate Variability in Patients with Old Myocardial Infarction / 中国医科大学学报

Objective To investigate the effect of old myocardial infarction on the heart rate variability.Methods Totally 86 patients with old myocardial infarction and 78 healthy people were enrolled in the study.Twenty-four-hour heart rate variability in the time domains including NN,SDNN,SDANN,RMSSD,and PNN50 and the frequency domains including VLF,LF,HF,and LF/HF were analyzed.Results Both the time domain and frequency domain indexes of the heart rate variability in patients with old myocardial infarction significantly decreased than those in the healthy peolple（P 0.05）.Conclusion There might be autonomic nervous system dysfunction in the patients with old myocardial infarction.

Mechanism of lipotoxicity-associated apoptosis mediated by mitochondrial dysfunction in pancreatic β-cells / 中国病理生理杂志

AIM:To investigate the mechanism of lipotoxicity-associated apoptosis mediated by mitochondrial pathway in pancreatic β-cells. METHODS:The pancreatic β-cell line MIN6 cells were incubated respectively in serum-free DMEM medium with or without palmitate (0.1-0.5 mmol/L) for 24 h,followed by Hoechst 33258 staining. The activity of caspase 3 was assayed for determining apoptosis,transmission electron microscope was used for observing mitochondrial structure,and RT-PCR analysis was applied for detection of mRNA expression of bcl-2-associated X protein (bax),B-cell lymphoma 2 (bcl-2),sterol regulatory element binding transcription factor 1c (SREBP1c) and DNA-damage inducible transcript 3 (chop-10). RESULTS:Palmitate induced apoptosis of MIN6 cells and swelling of mitochondria. Palmitate also inhibited mRNA expression of bcl-2,whereas enhanced mRNA expression of bax,SREBP1c and chop-10. CONCLUSION:Palmitate induces apoptosis of pancreatic β-cells by promoting mitochondrial dysfunction,which is associated with abnormal expressions of bax,bcl-2,SREBP1c and chop-10.

Palmitate induces cell apoptosis in insulinoma MIN6 cell / 基础医学与临床

Objective To investigate the effect of protein kinase B and its phosphorylation on the apoptosis of MIN6 induced by palmitate.Methods Incubated with different level of palmitate concentration (0 ～ 0.5 mmol/L),MIN6 cells were cultured in high glucose DMEM with or without LY294002 ; the apoptosis of MIN6 cells was detec-ted and quantified with TUNEL technology.Then we inspected the cell ultrastructure through electron microscopy and determined the expression of protein kinase B and its phosphorylation p-PKB (Ser473) by Western blot,fol-lowed by an RT-PCR detection of BAX and BCL-2 expression.Results Apoptosis of MIN6 cells was induced by palmitate in a concentration-dependent correlation and enhanced by LY294002.Palmitate also inhibited phospho-rylation of protein kinase B on Ser473.Finally,we detected a downregulation of BCL-2 mRNA expression and up-regulation of BAX mRNA expression under palmitate-incubated state.Conclusion Palmitate may induce apoptosis of pancreatic β-cells through inhibiting activation of PKB phosphorylation in diabetes.

Efficient production of canine interferon-alpha in silkworm Bombyx mori by use of a BmNPV/Bac-to-Bac expression system.

We exploited the silkworm Bombyx mori for the production of recombinant canine interferon-alpha (CaIFN-alpha). The recombinant baculovirus harboring canine interferon gene was rapidly generated by the BmNPV/Bac-to-Bac system that was recently developed. In B. mori-derived cell lines, the expression of the recombinant protein reached maximal levels around 72-96 h post-infection. For the isolation of the expressed recombinant protein from B. mori larvae, the whole bodies of the infected larvae were homogenized, and the expressed protein was purified by affinity chromatography. Based on the fact that the recombinant CaIFN-alpha showed two bands on the sodium dodecyl sulfate polyacrylamide gel electrophoresis pattern, the expressed protein was thought to be glycosylated. The rCaIFN-alpha yield was about 528 microg per larva, showing that the expression in silkworm was successful. Furthermore, the recombinant protein was proven to be able to inhibit the infection of Madin-Darby canine kidney cells by the vesicular stomatitis virus, indicating that it is biologically active in vitro. The method established in this study provides an efficient way to produce a large amount of CaIFN-alpha and paves the way for further utilization of this protein as a therapeutic agent or vaccine adjuvant in dogs.

Effect of angiotensin Ⅱ receptor antagonist on the plasma levels of calcitonin gene-related peptide and endothelin in the patients with diabetic nephrophy / 中华内分泌代谢杂志

The plasma levels of calcitonin gene-related peptide (CGRP) and endothelin (ET) were assayed in 76 patients with diabetic nephropathy (DN) and 23 healthy subjects, and the changes of CGRP and ET levels after treatment with angiotensin Ⅱ receptor antagonist (ARBS) were observed. The results showed that CGRP level was increased and ET level decreased after treatment with ARBS, which seemed to delay the onset and development of DN.