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Medicine

从部分Pancreatectomized患者的人类胰岛的分离

Published: July 30, 2011 doi: 10.3791/2962

Summary

为研究2型糖尿病胰岛供应不足。在这里,我们分享我们的协议隔离部分胰腺切除术病人的胰岛。这种方法代表一个独特的场地和2型糖尿病胰岛获得足够数量的非糖尿病患者的临床基础和临床研究相匹配。

Abstract

2型糖尿病胰岛器官捐赠者2有限的2型糖尿病和胰岛故障1胰岛的发病机理的调查而受到阻碍。在这里,我们分享我们的协议从2型糖尿病患者和非糖尿病患者都发生了不同的胰腺疾病(良性或恶性胰腺肿瘤,慢性胰腺炎,胆总管或十二指肠肿瘤)由于部分胰腺切除术的患者获得的人胰腺癌组织分离的胰岛。所有患者参与了他们的同意,这项研究中,也已经由当地伦理委员会的批准。手术标本被立即传送到选定为胰岛隔离柔软和健康出现胰腺组织,保留用于诊断目的的受损组织的病理学家。我们发现,分离出1000多小岛,我们已开始与胰腺组织至少2克。我们的协议还必须是明显扩张的组织注入含酶的媒体时,随后讳言,以帮助消化,增加表面积。

为了扩展我们的协议的适用性,包括大量人力胰腺组织(> 15G)是在偶然情况下,我们使用了Ricordi腔(50毫升)消化组织。在消化过程中,我们手动摇摇Ricordi 由试样的强度不同,根据其组织纤维化的程度。然后用一个不连续的聚蔗糖梯度从胰腺组织中分离出来的胰岛细胞。我们注意到,组织沉淀应足够小,密度为1.125克/毫升被均匀悬浮聚蔗糖培养基。隔离后,我们培养了至少48小时的小岛,以促进其功能恢复,下无应力条件下(无需摇动或旋转)5%的CO 2在37 ° C。我们的协议和今后改进的广泛应用,可以使大量从人类糖尿病胰岛适时采收和临床相匹配的非糖尿病患者,极大地推进了2型糖尿病的研究。

Protocol

1。胰腺组织收集在手术室

  1. 外科医生执行的胰腺部分切除。
  2. 胰腺标本放置在一个盒子上冰后,立即送到病理学家。

2。胰岛隔离的组织选择

  1. 病理学家选择柔软,健康的组织出现,保留用于诊断目的的受损组织。提供不少于2克可用组织的纤维组织和标本排除胰岛隔离。
  2. 沉浸在欧元Collins液的胰腺组织和实验室提供的冰。

3。人类胰岛的分离

  1. 称取胰腺组织,然后放入一个10厘米的菜。
  2. 在500毫升容量瓶中放入150毫升的RPMI媒体。
  3. 在250毫升容量瓶中,准备130毫升的RPMI媒体相结合,与100毫克/毫升DNase和20毫升5mg/ml Liberase RI的消化酶活性的解决方案。绘制成一个注射器注入胰腺组织10毫升这种解决方案。
  4. 注入胰腺组织消化酶的解决方案,旨在它均匀扩张。如果这是防止纤维化,消化,很可能会失败。下一步,组织3〜4毫米到百果冰块。

4。人的胰腺消化电路

  1. 组装消化电路如图1所示。 Ricordi腔中的流动方向是在出室顶部和底部。
  2. 其余消化酶液500毫升容量瓶中,加入到300毫升的总量,并插入温度计。
  3. 室转移到胰腺组织,插入目(孔径为600微米)和氮化硅大理石(直径:15毫米),接近香港总商会和启动泵与定为140毫升/分钟的流量。
  4. 当电路的温度达到37℃,开始计时,并定期抽取样本,以确定何时停止消化。 (2毫克/毫升)双硫腙染色允许微观可视化的胰岛细胞内消化的组织 4 。
  5. 一旦胰岛周围的腺泡组织分开,迅速停止加热线圈放置在冰上,加入200毫升(900毫升的RPMI 1640与5.5毫米的葡萄糖和10%FBS)冷洗媒体电路消化。
  6. 收集在250毫升的锥形管胰岛解决方案,因为它散发出来的样品管。继续,直到电路是空的。

图1
图1。人类胰腺消化电路人类胰腺消化电路包括一个Ricordi腔目(孔径为600微米)和三个氮化硅大理石(直径:15毫米) 。从室流出驱动组织收集瓶中,由蠕动泵(140毫升/分)。箭头表示水流方向。酶消化的最佳温度是保持浸泡在37℃水浴加热线圈。

5。洗涤后的消化

  1. 离心机含有胰岛解决方案,在1000 rpm,4 ° C 5分钟250毫升锥形管。
  2. 弃上清,重悬(900毫升与5.5毫米的葡萄糖和10%胎牛血清的RPMI 1640)洗媒体胰岛颗粒,分布在50 ml锥形管同等分数。 (可选:分发到额外的锥形管,以提高洗涤)离心机在1000 rpm,4℃5分钟。
  3. 弃上清,轻轻地松开手册晃动的颗粒。

6。在聚蔗糖梯度的分离纯化

  1. 重悬浮颗粒与聚蔗糖媒体密度1.125克/毫升,pH值7.4,慢慢的覆盖密度为1.080,1.060和1.037克/毫升的聚蔗糖媒体10毫升分装。
  2. 在2400转离心聚蔗糖梯度,4℃20分钟。

7。胰岛收集和文化

  1. 离心后,可以区分不同的组织成分,其分区,在渐变。
  2. 弃上层脂肪和结缔组织组成。
  3. 仔细收获胰岛总量在1.037-1.060克/毫升相间的第一层。这一层包含了最纯粹的孤立的小岛。收集分数分别为有效地隔离。
  4. 收集第二,胰岛总量少纯在1.060-1.080克/毫升相间的一小部分。
  5. 加入洗涤介质(900毫升与5.5毫米的葡萄糖和10%胎牛血清的RPMI 1640)每个锥形管总量为50毫升稀释的聚蔗糖梯度。离心机在1000 rpm,4℃5分钟。
  6. 丢弃吸上清。使用的颗粒可能会有所松动,由于聚蔗糖梯度的照顾。
  7. 洗颗粒无线媒体日洗(900毫升5.5毫米的葡萄糖和10%FBS)的RPMI 1640和1000转的离心机,4 ° C加热5分钟。重复使用胰岛文化传媒
  8. 在培养基重悬的小岛,并放置在孵化器,用5%的CO 2在37℃为24-48小时,然后再进一步加工彗星。

Representative Results

我们的协议取得了平均〜500每克胰腺组织胰岛,虽然这极大地之间的准备工作,这主要是由于纤维化和胶原酶活性的差异不同。胰岛纯度> 90%,实现了用双硫腙染色,在组织处理,然后亲手挑选他们隔离后24小时。要确定纯化的胰岛细胞的质量,我们测试了2小时的静态条件下为25毫米葡萄糖刺激胰岛素分泌。我们发现从ECIT胰岛分离和移植中心获得的胰岛的胰岛素分泌相媲美。从部分pancreatectomized的胰腺中分离出的胰岛并不意味着胰岛移植,评估的总的室内环境不被认为是一个关键因素。

更重要的是,我们的方法,使我们分离部分在2005年和2008年5之间的25 pancreatectomized患者胰岛功能的研究。这些胰岛葡萄糖刺激胰岛素分泌和特定的蛋白表达,免疫印迹和免疫组织化学分析。部分pancreatecomized胰腺分离的胰岛细胞也可用于比较基因和蛋白表达谱,超微结构的外观和功能反应的非糖尿病患者和糖尿病胰岛。因为有更多的患者接受部分胰腺切除术相比,有器官捐赠者,我们的协议可能允许强大的统计分析收集到足够的样品和数据。

Discussion

使用我们的协议,可以分离出人类胰岛收集从部分胰腺切除胰腺组织。此协议的成功依赖于在几个关键点,采取的护理。为了保护β-细胞的活力,它是必不可少的,迅速运冰实验室标本。此外,必须优化组织消化的时间经验,根据组织纤维化和媒体的酶的活性等级。这也是真正的手动应用Ricordi腔的机械力的程度。因此,取得了良好的胰岛产量,该协议是最好由一个专门的科学家或技术助理。最初的失败是常态,除非球队已经经历胰岛隔离。

有我们的胰岛隔离协议和标准的人类胰岛隔离方法之间的主要区别:1)虽然我们使用在手术过程中受到几个小时的缺血胰腺组织,它是在现场立即处理。这是相反胰腺从胰腺/胰岛移植,这仍然分配和交付胰岛隔离设施过程中的几个小时的缺血,脑死亡捐赠者explanted的。 2)我们直接注入胶原酶的胰腺组织,而标准的协议注入胰管。 3)我们单独使用间断聚蔗糖梯度,而不是使用COBE Cell处理器从一个连续的聚蔗糖梯度收集胰岛的胰岛细胞。

手术标本是太纤维化或隔离胰岛足够数量的稀缺的情况下,组织仍可以检索通过激光捕获显微切割(LCM)的10。这使得基因表达数据恢复从几乎每一个标本,即使胰岛隔离失败或产量很低。不幸的是,液晶显示模块不生产活细胞功能研究,其金额通常是不足的蛋白质组学分析。因此,在使用LCM与我们的胶原酶消化协议平行检索胰岛可能是最有效的方法来处理手术切除标本。

收集部分pancreatectomies胰岛分离组织时,重要的是要仔细检查病人的临床病史和代谢状态。 3C型糖尿病,即糖尿病继发胰腺疾病导致手术6,部分pancreatectomized患者可能会受到影响。 43参与我们的部门在2010年接受这种手术的患者中,32名非糖尿病患者,5例2型糖尿病患者和6影响类型3C糖尿病。同意这些数据与以往的研究表明糖代谢受损和糖尿病的一个相当大的患者患有胰头癌或慢性胰腺炎6部分。我们认为,糖尿病的主要原产地,如果被诊断至少一年之前的症状,导致胰腺手术7发病。胰岛自身抗原抗体水平也应测定,以评估潜在的自身免疫性糖尿病8来源。由于病人接受胰腺切除可能遭受从确诊糖尿病或葡萄糖不耐,应给予所有非糖尿病患者口服葡萄糖耐量试验之前,胰腺切除术9。

Disclosures

没有利益冲突的声明。

Acknowledgments

我们要感谢我们的很多同事都在项目的各个阶段提供帮助,建议和重要的投入。制作这个视频文章支持资金从德国教育和研究部(BMBF)德国糖尿病研究(DZD,中心部http://www.dzd-ev.de ),IMIDIA( http://www imidia.org )和大学医院的卡尔古斯塔夫Carus在德累斯顿工业大学。导致这些结果的研究,已收到来自欧洲共同体的第七框架计划(FP7/2007-2013)的资助创新药物倡议下赠款协议N ° 115005。

References

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  3. Ricordi, C., Lacy, P. E., Finke, E. H., Olack, B. J., Scharp, D. W. Automated method for isolation of human pancreatic islets. Diabetes. 37, 413-420 (1988).
  4. Latif, Z. A., Noel, J., Alejandro, R. A simple method of staining fresh and cultured islets. Transplantation. 45, 827-830 (1988).
  5. Ehehalt, F., Knoch, K., Erdmann, K., Krautz, C., Jäger, M., Steffen, A., Wegbrod, C., Meisterfeld, R., Kersting, S., Bergert, H., Kuhlisch, E., Bornstein, S., Bonifacio, E., Saeger, H. D., Solimena, M. Impaired insulin turnover in islets from type 2 diabetic patients. Islets. 2, 30-36 (2010).
  6. Hardt, P. D., Brendel, M. D., Kloer, H. U., Bretzel, R. G. Is pancreatic diabetes (type 3c diabetes) underdiagnosed and misdiagnosed? Diabetes Care. 31, Suppl 2. S165-S169 (2008).
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  8. Verge, C. F., Gianani, R., Kawasaki, E., Yu, L., Pietropaolo, M., Jackson, R. A., Chase, H. P., Eisenbarth, G. S. Prediction of type I diabetes in first-degree relatives using a combination of insulin, GAD, and ICA512bdc/IA-2 autoantibodies. Diabetes. 45, 926-933 (1996).
  9. Alberti, K. G., Zimmet, P. Z. Definition, diagnosis and classification of diabetes mellitus and its complications. Part 1: diagnosis and classification of diabetes mellitus provisional report of a WHO consultation. Diabet Med. 15, 539-553 (1998).
  10. Marselli, L., Thorne, J., Ahn, Y. B., Omer, A. Gene Expression of Purified {beta}-Cell Tissue Obtained from Human Pancreas with Laser Capture Microdissection. Journal of Clin. Endocrinol. Metab. 93, 1046-1053 (2008).

Tags

医药,53期,人的胰岛细胞,糖尿病,部分胰腺切除术,人类胰岛隔离
从部分Pancreatectomized患者的人类胰岛的分离
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Bötticher, G., Sturm, D.,More

Bötticher, G., Sturm, D., Ehehalt, F., Knoch, K. P., Kersting, S., Grützmann, R., Baretton, G. B., Solimena, M., Saeger, H. D. Isolation of Human Islets from Partially Pancreatectomized Patients. J. Vis. Exp. (53), e2962, doi:10.3791/2962 (2011).

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    Hydra, a Computer-Based Platform for Aiding Clinicians in Cardiovascular Analysis and Diagnosis
  • Research • Medicine
    Objective Nociceptive Assessment in Ventilated ICU Patients: A Feasibility Study Using Pupillometry and the Nociceptive Flexion Reflex
  • Research • Medicine
    'Boden Food Plate': Novel Interactive Web-based Method for the Assessment of Dietary Intake
  • Research • Medicine
    Anogenital Distance and Perineal Measurements of the Pelvic Organ Prolapse (POP) Quantification System
  • Research • Medicine
    Bedside Ultrasound for Guiding Fluid Removal in Patients with Pulmonary Edema: The Reverse-FALLS Protocol
  • Research • Medicine
    Muscle Imbalances: Testing and Training Functional Eccentric Hamstring Strength in Athletic Populations
  • Research • Medicine
    Isolation of Primary Human Decidual Cells from the Fetal Membranes of Term Placentae
  • Research • Medicine
    Skeletal Muscle Neurovascular Coupling, Oxidative Capacity, and Microvascular Function with 'One Stop Shop' Near-infrared Spectroscopy
  • Research • Medicine
    Collecting Hair Samples for Hair Cortisol Analysis in African Americans
  • Research • Medicine
    In Vivo Morphometric Analysis of Human Cranial Nerves Using Magnetic Resonance Imaging in Menière's Disease Ears and Normal Hearing Ears
  • Research • Medicine
    Measuring the Carotid to Femoral Pulse Wave Velocity (Cf-PWV) to Evaluate Arterial Stiffness
  • Research • Medicine
    Standardized Measurement of Nasal Membrane Transepithelial Potential Difference (NPD)
  • Research • Medicine
    Taste Exam: A Brief and Validated Test
  • Research • Medicine
    Absorption of Nasal and Bronchial Fluids: Precision Sampling of the Human Respiratory Mucosa and Laboratory Processing of Samples
  • Research • Medicine
    Methodology for Sputum Induction and Laboratory Processing
  • Research • Medicine
    Electrophysiological Measurement of Noxious-evoked Brain Activity in Neonates Using a Flat-tip Probe Coupled to Electroencephalography
  • Research • Medicine
    A Detailed Protocol for Physiological Parameters Acquisition and Analysis in Neurosurgical Critical Patients
  • Research • Medicine
    Oral Biofilm Sampling for Microbiome Analysis in Healthy Children
  • Research • Medicine
    Using Retinal Imaging to Study Dementia
  • Research • Medicine
    Application of an Amplitude-integrated EEG Monitor (Cerebral Function Monitor) to Neonates
  • Research • Medicine
    3D Ultrasound Imaging: Fast and Cost-effective Morphometry of Musculoskeletal Tissue
  • Research • Medicine
    The 4-vessel Sampling Approach to Integrative Studies of Human Placental Physiology In Vivo
  • Research • Medicine
    A Component-resolved Diagnostic Approach for a Study on Grass Pollen Allergens in Chinese Southerners with Allergic Rhinitis and/or Asthma
  • Research • Medicine
    A Novel Method: Super-selective Adrenal Venous Sampling
  • Research • Medicine
    A Method for Quantifying Upper Limb Performance in Daily Life Using Accelerometers
  • Research • Medicine
    Non-invasive Assessments of Subjective and Objective Recovery Characteristics Following an Exhaustive Jump Protocol
  • Research • Medicine
    Experimental Protocol of a Three-minute, All-out Arm Crank Exercise Test in Spinal-cord Injured and Able-bodied Individuals
  • Research • Medicine
    Phosphorus-31 Magnetic Resonance Spectroscopy: A Tool for Measuring In Vivo Mitochondrial Oxidative Phosphorylation Capacity in Human Skeletal Muscle
  • Research • Medicine
    Assessment of Pulmonary Capillary Blood Volume, Membrane Diffusing Capacity, and Intrapulmonary Arteriovenous Anastomoses During Exercise
  • Research • Medicine
    Assessment of Child Anthropometry in a Large Epidemiologic Study
  • Research • Medicine
    Video Movement Analysis Using Smartphones (ViMAS): A Pilot Study
  • Research • Medicine
    Network Analysis of Foramen Ovale Electrode Recordings in Drug-resistant Temporal Lobe Epilepsy Patients
  • Research • Medicine
    A Model to Simulate Clinically Relevant Hypoxia in Humans
  • Research • Medicine
    Interictal High Frequency Oscillations Detected with Simultaneous Magnetoencephalography and Electroencephalography as Biomarker of Pediatric Epilepsy
  • Research • Medicine
    Induction and Assessment of Exertional Skeletal Muscle Damage in Humans
  • Research • Medicine
    A Detailed Protocol for Perspiration Monitoring Using a Novel, Small, Wireless Device
  • Research • Medicine
    Drug-Induced Sleep Endoscopy (DISE) with Target Controlled Infusion (TCI) and Bispectral Analysis in Obstructive Sleep Apnea
  • Research • Medicine
    Integrated Compensatory Responses in a Human Model of Hemorrhage
  • Research • Medicine
    Transthoracic Speckle Tracking Echocardiography for the Quantitative Assessment of Left Ventricular Myocardial Deformation
  • Research • Medicine
    Impression Cytology of the Lid Wiper Area
  • Research • Behavior
    A Protocol of Manual Tests to Measure Sensation and Pain in Humans
  • Research • Medicine
    Unbiased Deep Sequencing of RNA Viruses from Clinical Samples
  • Research • Medicine
    A Choroid Plexus Epithelial Cell-based Model of the Human Blood-Cerebrospinal Fluid Barrier to Study Bacterial Infection from the Basolateral Side
  • Research • Medicine
    Isolation and Profiling of MicroRNA-containing Exosomes from Human Bile
  • Research • Medicine
    Generation of Microtumors Using 3D Human Biogel Culture System and Patient-derived Glioblastoma Cells for Kinomic Profiling and Drug Response Testing
  • Research • Medicine
    Ultrasound Assessment of Endothelial Function: A Technical Guideline of the Flow-mediated Dilation Test
  • Research • Medicine
    Using a Laminating Technique to Perform Confocal Microscopy of the Human Sclera
  • Research • Medicine
    Intravenous Endotoxin Challenge in Healthy Humans: An Experimental Platform to Investigate and Modulate Systemic Inflammation
  • Research • Medicine
    Modeling and Simulations of Olfactory Drug Delivery with Passive and Active Controls of Nasally Inhaled Pharmaceutical Aerosols
  • Research • Medicine
    Exosomal miRNA Analysis in Non-small Cell Lung Cancer (NSCLC) Patients' Plasma Through qPCR: A Feasible Liquid Biopsy Tool
  • Research • Medicine
    A Multimodal Imaging- and Stimulation-based Method of Evaluating Connectivity-related Brain Excitability in Patients with Epilepsy
  • Research • Medicine
    Measuring Cardiac Autonomic Nervous System (ANS) Activity in Toddlers - Resting and Developmental Challenges
  • Research • Medicine
    Using Saccadometry with Deep Brain Stimulation to Study Normal and Pathological Brain Function
  • Research • Medicine
    Quantitative Fundus Autofluorescence for the Evaluation of Retinal Diseases
  • Research • Medicine
    Diagnosis of Musculus Gastrocnemius Tightness - Key Factors for the Clinical Examination
  • Research • Medicine
    Stereo-Electro-Encephalo-Graphy (SEEG) With Robotic Assistance in the Presurgical Evaluation of Medical Refractory Epilepsy: A Technical Note
  • Research • Medicine
    Quantitative Magnetic Resonance Imaging of Skeletal Muscle Disease
  • Research • Medicine
    Transcutaneous Microcirculatory Imaging in Preterm Neonates
  • Research • Medicine
    Using an Ingestible Telemetric Temperature Pill to Assess Gastrointestinal Temperature During Exercise
  • Research • Medicine
    Design, Fabrication, and Administration of the Hand Active Sensation Test (HASTe)
  • Research • Medicine
    MRI-guided dmPFC-rTMS as a Treatment for Treatment-resistant Major Depressive Disorder
  • Research • Medicine
    Functional Human Liver Preservation and Recovery by Means of Subnormothermic Machine Perfusion
  • Research • Medicine
    A Multicenter MRI Protocol for the Evaluation and Quantification of Deep Vein Thrombosis
  • Research • Medicine
    Determining The Electromyographic Fatigue Threshold Following a Single Visit Exercise Test
  • Research • Medicine
    Use of Electromagnetic Navigational Transthoracic Needle Aspiration (E-TTNA) for Sampling of Lung Nodules
  • Research • Medicine
    Trabecular Meshwork Response to Pressure Elevation in the Living Human Eye
  • Research • Medicine
    In Vivo, Percutaneous, Needle Based, Optical Coherence Tomography of Renal Masses
  • Research • Medicine
    Establishment of Human Epithelial Enteroids and Colonoids from Whole Tissue and Biopsy
  • Research • Medicine
    Human Brown Adipose Tissue Depots Automatically Segmented by Positron Emission Tomography/Computed Tomography and Registered Magnetic Resonance Images
  • Research • Medicine
    Preparation and Respirometric Assessment of Mitochondria Isolated from Skeletal Muscle Tissue Obtained by Percutaneous Needle Biopsy
  • Research • Medicine
    A Methodological Approach to Non-invasive Assessments of Vascular Function and Morphology
  • Research • Medicine
    Isolation and Immortalization of Patient-derived Cell Lines from Muscle Biopsy for Disease Modeling
  • Research • Medicine
    State of the Art Cranial Ultrasound Imaging in Neonates
  • Research • Medicine
    Measurement of Dynamic Scapular Kinematics Using an Acromion Marker Cluster to Minimize Skin Movement Artifact
  • Research • Medicine
    The Supraclavicular Fossa Ultrasound View for Central Venous Catheter Placement and Catheter Change Over Guidewire
  • Research • Medicine
    Ultrasound Assessment of Endothelial-Dependent Flow-Mediated Vasodilation of the Brachial Artery in Clinical Research
  • Research • Medicine
    Tracking the Mammary Architectural Features and Detecting Breast Cancer with Magnetic Resonance Diffusion Tensor Imaging
  • Research • Medicine
    A Neuroscientific Approach to the Examination of Concussions in Student-Athletes
  • Research • Medicine
    DTI of the Visual Pathway - White Matter Tracts and Cerebral Lesions
  • Research • Medicine
    Collection, Isolation, and Flow Cytometric Analysis of Human Endocervical Samples
  • Research • Medicine
    Fundus Photography as a Convenient Tool to Study Microvascular Responses to Cardiovascular Disease Risk Factors in Epidemiological Studies
  • Research • Medicine
    A Multi-Modal Approach to Assessing Recovery in Youth Athletes Following Concussion
  • Research • Medicine
    Clinical Assessment of Spatiotemporal Gait Parameters in Patients and Older Adults
  • Research • Medicine
    Multi-electrode Array Recordings of Human Epileptic Postoperative Cortical Tissue
  • Research • Medicine
    Collection and Extraction of Saliva DNA for Next Generation Sequencing
  • Research • Medicine
    Fast and Accurate Exhaled Breath Ammonia Measurement
  • Research • Medicine
    Developing Neuroimaging Phenotypes of the Default Mode Network in PTSD: Integrating the Resting State, Working Memory, and Structural Connectivity
  • Research • Medicine
    Two Methods for Establishing Primary Human Endometrial Stromal Cells from Hysterectomy Specimens
  • Research • Medicine
    Assessment of Vascular Function in Patients With Chronic Kidney Disease
  • Research • Medicine
    Coordinate Mapping of Hyolaryngeal Mechanics in Swallowing
  • Research • Medicine
    Network Analysis of the Default Mode Network Using Functional Connectivity MRI in Temporal Lobe Epilepsy
  • Research • Medicine
    EEG Mu Rhythm in Typical and Atypical Development
  • Research • Medicine
    The Multiple Sclerosis Performance Test (MSPT): An iPad-Based Disability Assessment Tool
  • Research • Medicine
    Isolation and Functional Characterization of Human Ventricular Cardiomyocytes from Fresh Surgical Samples
  • Research • Medicine
    Dynamic Visual Tests to Identify and Quantify Visual Damage and Repair Following Demyelination in Optic Neuritis Patients
  • Research • Medicine
    Primary Culture of Human Vestibular Schwannomas
  • Research • Medicine
    Utility of Dissociated Intrinsic Hand Muscle Atrophy in the Diagnosis of Amyotrophic Lateral Sclerosis
  • Research • Medicine
    Lesion Explorer: A Video-guided, Standardized Protocol for Accurate and Reliable MRI-derived Volumetrics in Alzheimer's Disease and Normal Elderly
  • Research • Medicine
    Pulse Wave Velocity Testing in the Baltimore Longitudinal Study of Aging
  • Research • Medicine
    Isolation, Culture, and Imaging of Human Fetal Pancreatic Cell Clusters
  • Research • Medicine
    3D-Neuronavigation In Vivo Through a Patient's Brain During a Spontaneous Migraine Headache
  • Research • Medicine
    A Novel Application of Musculoskeletal Ultrasound Imaging
  • Research • Medicine
    Computerized Dynamic Posturography for Postural Control Assessment in Patients with Intermittent Claudication
  • Research • Medicine
    Collecting Saliva and Measuring Salivary Cortisol and Alpha-amylase in Frail Community Residing Older Adults via Family Caregivers
  • Research • Medicine
    Diffusion Tensor Magnetic Resonance Imaging in the Analysis of Neurodegenerative Diseases
  • Research • Medicine
    Transcriptomic Analysis of Human Retinal Surgical Specimens Using jouRNAl
  • Research • Medicine
    Improved Protocol For Laser Microdissection Of Human Pancreatic Islets From Surgical Specimens
  • Research • Medicine
    Evaluation of Respiratory Muscle Activation Using Respiratory Motor Control Assessment (RMCA) in Individuals with Chronic Spinal Cord Injury
  • Research • Medicine
    Minimal Erythema Dose (MED) Testing
  • Research • Medicine
    Measuring Cardiac Autonomic Nervous System (ANS) Activity in Children
  • Research • Medicine
    Collecting And Measuring Wound Exudate Biochemical Mediators In Surgical Wounds
  • Research • Medicine
    A Research Method For Detecting Transient Myocardial Ischemia In Patients With Suspected Acute Coronary Syndrome Using Continuous ST-segment Analysis
  • Research • Medicine
    Using a Chemical Biopsy for Graft Quality Assessment
  • Research • Medicine
    Characterizing Exon Skipping Efficiency in DMD Patient Samples in Clinical Trials of Antisense Oligonucleotides
  • Research • Medicine
    In Vitro Assessment of Cardiac Function Using Skinned Cardiomyocytes
  • Research • Medicine
    Normothermic Ex Situ Heart Perfusion in Working Mode: Assessment of Cardiac Function and Metabolism
  • Research • Medicine
    Evaluation of Vascular Control Mechanisms Utilizing Video Microscopy of Isolated Resistance Arteries of Rats
  • Research • Medicine
    Bronchoalveolar Lavage (BAL) for Research; Obtaining Adequate Sample Yield
  • Research • Medicine
    Non-invasive Optical Measurement of Cerebral Metabolism and Hemodynamics in Infants
  • Research • Medicine
    Tilt Testing with Combined Lower Body Negative Pressure: a "Gold Standard" for Measuring Orthostatic Tolerance
  • Research • Medicine
    Driving Simulation in the Clinic: Testing Visual Exploratory Behavior in Daily Life Activities in Patients with Visual Field Defects
  • Research • Medicine
    Isolation, Characterization and Comparative Differentiation of Human Dental Pulp Stem Cells Derived from Permanent Teeth by Using Two Different Methods
  • Research • Medicine
    Portable Intermodal Preferential Looking (IPL): Investigating Language Comprehension in Typically Developing Toddlers and Young Children with Autism
  • Research • Medicine
    Intraoperative Detection of Subtle Endometriosis: A Novel Paradigm for Detection and Treatment of Pelvic Pain Associated with the Loss of Peritoneal Integrity
  • Research • Medicine
    The Use of Primary Human Fibroblasts for Monitoring Mitochondrial Phenotypes in the Field of Parkinson's Disease
  • Research • Medicine
    Collection Protocol for Human Pancreas
  • Research • Medicine
    The α-test: Rapid Cell-free CD4 Enumeration Using Whole Saliva
  • Research • Medicine
    The Measurement and Treatment of Suppression in Amblyopia
  • Research • Medicine
    Corneal Donor Tissue Preparation for Endothelial Keratoplasty
  • Research • Medicine
    Quantification of Atherosclerotic Plaque Activity and Vascular Inflammation using [18-F] Fluorodeoxyglucose Positron Emission Tomography/Computed Tomography (FDG-PET/CT)
  • Research • Medicine
    Eye Tracking Young Children with Autism
  • Research • Medicine
    Doppler Optical Coherence Tomography of Retinal Circulation
  • Research • Medicine
    Utilizing Transcranial Magnetic Stimulation to Study the Human Neuromuscular System
  • Research • Medicine
    Detection and Genogrouping of Noroviruses from Children's Stools By Taqman One-step RT-PCR
  • Research • Medicine
    Method to Measure Tone of Axial and Proximal Muscle
  • Research • Medicine
    The Trier Social Stress Test Protocol for Inducing Psychological Stress
  • Research • Medicine
    Probing the Brain in Autism Using fMRI and Diffusion Tensor Imaging
  • Research • Medicine
    Multifocal Electroretinograms
  • Research • Medicine
    Isolation of Human Islets from Partially Pancreatectomized Patients
  • Research • Medicine
    Examining the Characteristics of Episodic Memory using Event-related Potentials in Patients with Alzheimer's Disease
  • Research • Medicine
    Magnetic Resonance Imaging Quantification of Pulmonary Perfusion using Calibrated Arterial Spin Labeling
  • Research • Medicine
    Manual Muscle Testing: A Method of Measuring Extremity Muscle Strength Applied to Critically Ill Patients
  • Research • Medicine
    Expired CO2 Measurement in Intubated or Spontaneously Breathing Patients from the Emergency Department
  • Research • Medicine
    A Protocol for Comprehensive Assessment of Bulbar Dysfunction in Amyotrophic Lateral Sclerosis (ALS)
  • Research • Medicine
    An Investigation of the Effects of Sports-related Concussion in Youth Using Functional Magnetic Resonance Imaging and the Head Impact Telemetry System
  • Research • Medicine
    Corneal Confocal Microscopy: A Novel Non-invasive Technique to Quantify Small Fibre Pathology in Peripheral Neuropathies
  • Research • Medicine
    Methods to Quantify Pharmacologically Induced Alterations in Motor Function in Human Incomplete SCI
  • Research • Medicine
    Multispectral Real-time Fluorescence Imaging for Intraoperative Detection of the Sentinel Lymph Node in Gynecologic Oncology
  • Research • Medicine
    Technique to Collect Fungiform (Taste) Papillae from Human Tongue
  • Research • Medicine
    Assessing Endothelial Vasodilator Function with the Endo-PAT 2000
  • Research • Medicine
    Making Sense of Listening: The IMAP Test Battery
  • Research • Medicine
    An Experimental Paradigm for the Prediction of Post-Operative Pain (PPOP)
  • Research • Biology
    Bioelectric Analyses of an Osseointegrated Intelligent Implant Design System for Amputees
  • Research • Biology
    Demonstration of Cutaneous Allodynia in Association with Chronic Pelvic Pain
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