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中华肝胆外科杂志 2006年第1期12卷 47-50页

作者：周毅许评王平兰宋纯宋春芳 jonathan r.T.lakey 哈尔滨医科大学一院普外一科大庆市中医院加拿大阿尔伯塔大学临床胰岛分离实验室T6G 2N8

目的探讨在胰岛分离过程中影响胰岛分离数量和活性的关键因素,以期进一步提高胰岛移植效果。方法通过分组观察以下因素对胰岛分离效果的影响:(1)胰腺重量和所用酶的量的比例;(2)胰腺消化过程中的震荡频率和幅度;(3)DNaseI 对胰岛分离的... 详细信息

目的探讨在胰岛分离过程中影响胰岛分离数量和活性的关键因素,以期进一步提高胰岛移植效果。方法通过分组观察以下因素对胰岛分离效果的影响:(1)胰腺重量和所用酶的量的比例;(2)胰腺消化过程中的震荡频率和幅度;(3)DNaseI 对胰岛分离的影响;(4)胰腺消化后的残余组织量与进行纯化的次数的关系;(5)消化下来的组织在 UW 液中放置的时间.结果当胰腺重量120 g,给予分散酶0.75g;消化10min 后震荡频率为100次/min,垂直幅度2～3 cm;向稀释液中加入 DNaseI;一次纯化过程加入消化胰腺组织最大量不超过20g;将纯化前的胰岛在 UW 液中放置30 min,获得纯化后胰岛数在(4459.28±704.51)～(5018.46±952.36)IEQ/g 胰腺组织,胰岛收获率在(79.06±12.53)%～(86.03±16.12)%,胰岛素刺激指数在(5.21±1.55)～(6.91±2.03),均高于对照组。结论消除上述关键影响因素的负面影响,可以明显提高胰岛分离数量和活性。

关键词：影响因素胰岛分离消化纯化

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Total pancreatectomy and islet autotransplantation: A decade nationwide analysis

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World Journal of Transplantation 2016年第1期6卷 233-238页

作者： reza Fazlalizadeh Zhobin Moghadamyeghaneh Aram N Demirjian David K Imagawa Clarence E Foster jonathan r lakey Michael J Stamos Hirohito Ichii Division of Transplant Department of Surgery University of California Irvine School of Medicine Department of Biomedical Engineering University of California

AIM: To investigate outcomes and predictors of inhospital morbidity and mortality after total pancreatectomy(TP) and islet autotransplantation. METHODS: The nationwide inpatient sample(NIS) database was used to identify patients who underwent TP and islet autotransplantation(IAT) between 2002-2012 in the United States. Variables of interest were inherent variables of NIS database which included demographic data(age, sex, and race), comorbidities(such as diabetes mellitus, hypertension, and deficiency anemia), and admission type(elective vs nonelective). The primary endpoints were mortality and postoperative complications according to the ICD-9 diagnosis codes which were reported as the second to 25 th diagnosis of patients in the database. risk adjusted analysis was performed to investigate morbidity predictors. Multivariate regression analysis was used to identify predictors of in-hospital ***: We evaluated a total of 923 patients who underwent IAT after pancreatectomy during 2002-2012. Among them, there were 754 patients who had TP + IAT. The most common indication ofsurgery was chronic pancreatitis(86%) followed by acute pancreatitis(12%). The number of patients undergoing TP + IAT annually significantly increased during the 11 years of study from 53 cases in 2002 to 155 cases in 2012. Overall mortality and morbidity of patients were 0% and 57.8 %, respectively. Postsurgical hypoinsulinemia was reported in 42.3% of patients, indicating that 57.7% of patients were insulin independent during hospitalization. Predictors of inhospital morbidity were obesity [adjusted odds ratio(AOr): 3.02, P = 0.01], fluid and electrolyte disorders(AOr: 2.71, P r: 2.63, P r: 2.43, P rocedure with no mortality, acceptable morbidity, and achieved high rate of early insulin independence. Obesity is the most significant predictor of in-hospital morbidity.

关键词： Total pancreatectomy Pancreatectomy Islet auto transplantation Chronic pancreatitis Insulin independency

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Mesenchymal Stem Cell Allograft Improved Pain Management in Dogs with Osteoarthritis

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Journal of Biosciences and Medicines 2023年第11期11卷 181-189页

作者： jonathan r. T. lakey Wenyi Guo Michael Alexander Mike K. S. Chan Michelle B. F. Wong Todd Scott Department of Surgery University of California Irvine Irvine USA Department of Biomedical Engineering University of California Irvine Irvine USA Department of Pancreatic Surgery General Surgery Qilu Hospital of Shandong University Jinan China European Wellness Biomedical Group Edenkoben Germany Baden r&D Laboratories GmbH Sabine Conrad Ferdinand-Laselle-Strasse Edenkoben Germany Crestwood Veterinary Clinic Edmonton Canada

Background: Osteoarthritis is one of the most common bone diseases, triggered by bone destruction stemming from the inflammatory response of chondrocytes. The disease progresses slowly, but halting its progression or finding a cure remains elusive. The treatment of pain associated with osteoarthritis has yielded unsatisfactory results. In recent years, mesenchymal stem cells (MSCs) have emerged as a potential avenue for addressing the condition. In this study, we used MSCs to treat companion dogs with osteoarthritis. Methods: For this study, 26 animals were included in this study to assess the pain and mobility one month after treatment. The pain scores were obtained from owners using a questionnaire based on the Helsinki Chronic Pain Index, and the Liverpool Osteoarthritis in Dogs (LOAD) Owner questionnaire to assess the mobility of the dogs from stem cell infusion. results: Questionnaires were administered to dog owners before and one month after treatment, and we found that dogs treated with MSCS experienced an 81.2% ± 6.8% reduction in pain and a 77.9% ± 10.1% increase in mobility, whereas most of the dogs in the untreated control group experienced disease progression. Conclusions: The transplantation of stem cells into companion pets is a promising and expanding opportunity for pet owners with aging and arthritic dogs. MSCs may play an important role in the treatment of OA without complications in companion pets.

关键词： Stem Cell Therapy Canine Pain Osteoarthritis Mesenchymal Stem Cell

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