BACKGROUND: The quantity and bioactivity of isolated islet are vital to islet transplantation; while, the cold ischemia time and human leucocyte antigen (HLA) typing are key factors to islet quantity and bioactivity which inflect islet transplantation.OBJECTIVE: To observe the effects of cold ischemia time and blood compatibility on quantity and bioactivity of islet cells.DESIGN: Observational study.SETTING: Ruikang Affiliated Hospital of Guangxi College of Traditional Chinese Medicine.MATERIALS: Organs from voluntary donors died of irreversible coma were adopted whose blood-type and HLA typing had been known, pancreases acquisition was carried on after other organs ablation or in the meantime. The blood of identical ABO and HLA matching conformity, or HLA cross-matching hypersensitization (missmatching over 3 Iocuses),or panel reaction antibody (PRA) ＞ 50%, or lymphocyte cytotoxin crossmatching test positive. The isolated and purified islet suspension was filtered by 70 μm filter, which result in preparing 1.2×105/L islet suspention.METHODS: Hypertonic citrate adenine solution was perfused into aorta, and kidney-pancreases and kidney-pancreases-liver were cut together or kidney-pancreases-liver was cut separately. Islet activity was judged by diphenylthiocarbazone (DTZ) dyeing and acridine orange (AO) dyeing; meanwhile, twelve pancreases far from contamination were aquired, mean ablation time was 15 minutes; cold ischemia time ranged from 2.5 to 8 hours. Cold ischemia time of nine pancreases was controlled in 5 hours, warm ischemia time was 0-3 minutes, and peptic time was (15±2.4) minutes, correlation of islet cells and histocompatibility with survival of islet cells was analyzed.MAIN OUTCOME MEASURES: Survival rate of islet cells; counts of platelet, heterophil granulocyte and monocyte.RESULTS: The cutting of kidney, pancreases and liver were successful. If the cold ischemia time was controlled within 5 hours, activity of islets was above 80%. Pancreatic gland used for islet transplantation and cutting of other organs could not affect activity of islet cells. When human islets were exposed to human blood, it would induce a rapid consumption of platelets, neutrophils, monocytes and lymphocytes in the blood. Consumption of blood cells was more in the HLA typing groups than that in the control group. After adding heparin, there was significant difference in cell account among the three groups (P ＜ 0.05) and the reaction was relieved obviously. After 24-hour cultivation, there were significant difference in active islets quantity between HLA typing compatibility group and HLA typing incompatibility group (P ＜ 0.05).CONCLUSION: Pancreatic gland obtained under the cold ischemia time ＜ 5 hours can be used in clinical transplantation of islet cells; a good histocompatibility can raise successful rate of transplantation of islet cells.

BACKGROUND: The incompatible reaction may occur after islet transplantation, which affects the survival and functions of cells. OBJECTIVE: To explore the islet cells injury and its causes during islet transplantation. METHODS: The pancreases of voluntary, brain death, donors were isolated by collagenase, and the islet cells injury was measured with different cold ischemia times. The islet cells were cultured with blood as follow: HLA matching group: recipient whole blood + islet cells, recipient whole blood + islet cells + heparin; HLA mismatching group: recipient whole blood + islet cells, recipient whole blood + islet cells + heparin; Control group: recipient whole blood + RPMI1640. The potential injury to islet cells was observed. RESULTS AND CONCLUSION: The pancreases were smoothly obtained. The activity of islets may be more than 80% within 5 hours of ischemia preservation time, which was less than 19% if the cold ischemia preservation time was over 8 hours. When human islets were exposed to human blood, it will induce a rapid consumption of blood cells, no matter HLA matching or HLA mismatching. After adding heparin into the blood, these events were avoided. At 24 hours of in vitro culture, the number of survival islet cells in the HLA matching group was greater than that of the HLA mismatching group (P < 0.05). The results described that cold ischemia time affects islet cells activity, reduce the cold ischemia preservation time within 5 hours and HLA typing are conductive to enhance the quantity of living islets.

Objective To analyze the application of modified abdomen pathway for excising the adrenal huge pheoehromocytoma.Methods One patient(male,42-year-old)had adrenal huge pheochromocytoma.The pheochromocytoma was about 15.0 cm×8.0 cm×7.0 cm.After 3 weeks' preparations,the patient was operated.The operation was made through the modified abdomen pathway for excision,without excising the transverse on peritoneal,and the interference to organs of peritoneal was reduced.The tumor on adrenal gland adhered kidney very tightly.Expanded radical excision including tumor,kidney,adrenal gland was applied.Results The operative time was 300 rain and the volume of bleeding was about 1000 ml.In the operation process,blood pressure of the patient was stable,the visual field of operation was satisfactory.Blood pressure of the patient returned normal 6 months postoperatively.And there was no indication of tumour relapse or matastasis.Conclusion The modified abdomen pathway can expose the satisfactory visual field,and is safe and effective for adrenal gland tumor operation.

BACKGROUND:It has great significance to understand individual human leucocyte antigen allele(HLA) haplotype and genotype in organ allotransplantation.OBJECTIVE:To analyse HLA allele frequency,haplotype frequency and characteristices in 36 cases of living-related donor kidney transplantation.DESIGN,TIME AND SETTING:The gene polymorphism analysis was performed in the Tissue Typing Laboratory of Organ Transplantation of Ruikang Hospital of Guangxi Traditional Chinese Medical University from January 2007 to June 2008.PARTICIPANTS:Thirty-six cases of living-related donor kidney transplantation,who were relatives of Guangxi Han population.METHODS:HLA-Ⅰantigen was detected by dry plates of monoclonal antibodies,and HLA-Ⅱ antigen was subjected to genotyping using PCR-SSP technique.And then the allele and haplotype frequencies of HLA-A,B,DRB1 were calculated.MAIN OUTCOME MEASURES:HLA haplotype and genotype of Guangxi Han population.RESULTS:A total of 11 HLA-A,24 HLA-B and 13 HLA-DR alleles were detected among 36 cases,showing a rich polymorphism.A2-B46,A11-B60,B46-DRB1*09,B60-DRB1*15 and A2-B46-DRB1*09 among 144 haplotypes were informative with frequency higher than 0.05.A total of 10 HLA-A-B haplotypes and 9 HLA-B-DRB1 haplotypes were in strongest linkage disequilibrium.Distribution of HLA-A,B,DRB1 alleles and haplotypes in Guanxi population is similar to Han population in South China,such as Hunan and Taiwan,but had its own characteristics.CONCLUSION:HLA alleles have richer polymorphisms with exhibit geographic genetic characteristics.

Objective:To evaluate the effect of standardized bowel preparation and nursing procedures in patients with colon disease underwent full abdominal CT examination.Methods:A total of 281 inpatients who were diagnosed as "colon tumors" and underwent full-abdominal CT examinations from January 2016 to December 2017 were selected. From January to December 2016, 153 patients were included in the study, which is the pre-implementation group; from January to December 2017, 128 patients were included in the study, all of whom received standardized bowel preparation and nursing procedures, and were the post-implementation group. Compare and observe the differences in the cleanliness, intestinal filling and CT image quality of patients before and after the intervention measures.Results:After the implementation of standardized nursing procedures, the proportion of patients with good intestinal cleanliness was 71.09% (91/128), which was higher than the pre-implementation of 33.33% (51/153) ( χ2 value was 40.79, P<0.001). The proportion of patients with sub-intestinal preparations also decreased ( P<0.05). The proportion of patients with good intestinal filling in the post-implementation group was 75.00% (96/128), which was higher than 42.48% (65/153) in the pre-implementation group ( χ2 value was 42.63, P<0.001). After the implementation of standardized nursing procedures, the image quality rate of patients with whole abdominal CT was 90.63% (116/128), which was higher than the pre-implementation 32.68% (50/153) ( χ2 value was 98.34, P<0.001). Conclusion:The standardized nursing process can improve the quality of bowel preparation and significantly improve the image quality of abdominal CT examination.

Schisandra chinensis, a traditional Chinese medicine (TCM), has been used to treat sleep disorders. Zebrafish sleep/wake behavioral profiling provides a high-throughput platform to screen chemicals, but has never been used to study extracts and components from TCM. In the present study, the ethanol extract of Schisandra chinensis and its two main lignin components, schisandrin and schisandrin B, were studied in zebrafish. We found that the ethanol extract had bidirectional improvement in rest and activity in zebrafish. Schisandrin and schisandrin B were both sedative and active components. We predicted that schisandrin was related to serotonin pathway and the enthanol extract of Schisandra chinensis was related to seoronin and domapine pathways using a database of zebrafish behaviors. These predictions were confirmed in experiments using Caenorhabditis elegans. In conclusion, zebrafish behavior profiling could be used as a high-throughput platform to screen neuroactive effects and predict molecular pathways of extracts and components from TCM.
Animals ; Behavior, Animal ; drug effects ; Caenorhabditis elegans ; Central Nervous System Agents ; chemistry ; isolation & purification ; pharmacology ; Cyclooctanes ; analysis ; isolation & purification ; pharmacology ; Drugs, Chinese Herbal ; chemistry ; pharmacology ; Lignans ; analysis ; isolation & purification ; pharmacology ; Plant Extracts ; chemistry ; isolation & purification ; pharmacology ; Polycyclic Compounds ; analysis ; isolation & purification ; pharmacology ; Schisandra ; chemistry ; Zebrafish ; physiology