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Name Authors DOI Group Summary Associated Publications RRIDs used Affiliations External URL Version Publication Date Proper Citation Record Last Update
WT-1 Staining Protocol for Podocytes
 
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Frank Brosius DOI:10.17504/protocols.io.8e2htge Diabetic Complications Consortium This protocol describes a protocol used by some DiaComp members to detect podocyte nuclei in rodent glomeruli.Edited by: Brosius LaboratoryDiabetic Complications: RRID:AB_2336820 University of Arizona https://diacomp.org/shared/document.aspx?id=63&docType=Protocol 2 2019 Frank Brosius 2019. WT-1 Staining Protocol for Podocytes. protocols.io https://dx.doi.org/10.17504/protocols.io.8e2htge 2021-04-15 09:15:17
Neuropathy Phentoyping Protocols - Immuno-Electron Microscopy
 
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Eva Feldman DOI:10.17504/protocols.io.3jtgknn Diabetic Complications Consortium Summary:Phenotyping of Rodents for the Presence of Diabetic Neuropathy In man, the development of diabetic neuropathy is dependent on both the degree of glycemic control and the duration of diabetes. Diabetic neuropathy is a progressive disorder, with signs and symptoms that parallel the loss of nerve fibers over time. Consequently, assessments of neuropathy in mice are not performed at one time point, but are characterized at multiple time points during a 6 month period of diabetes. The degree of diabetes is evaluated in 2 ways: tail blood glucose measured following a 6 hour fast and glycated hemoglobin levels. The initial degree of neuropathy is screened using the methods discussed below. Detailed measures of neuropathy are employed when the initial screening instruments indicate a profound or unique phenotypic difference. This document contains protocols used by the DiaComp staff to examine and measure diabetic neuropathy at the whole animal, tissue and cellular levels.Diabetic Complication:Reference: Kumagai et al., Brain Research 1996, 706:313-317 University of Michigan - Ann Arbor https://www.diacomp.org/shared/document.aspx?id=54&docType=Protocol 1 2019 Eva Feldman 2019. Neuropathy Phentoyping Protocols - Immuno-Electron Microscopy. protocols.io https://dx.doi.org/10.17504/protocols.io.3jtgknn 2021-04-15 09:15:24
Intraperitoneal Glucose Tolerance Testing (IPGTT)
 
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Donald McClain DOI:10.17504/protocols.io.3g7gjzn Diabetic Complications Consortium This is the standard protocol for most routine glucose tolerance testing. It is performed on awake mice, fasted for 6 hr.Diabetic Complications: University of Utah https://www.diacomp.org/shared/document.aspx?id=11&docType=Protocol 1 2019 Donald McClain 2019. Intraperitoneal Glucose Tolerance Testing (IPGTT). protocols.io https://dx.doi.org/10.17504/protocols.io.3g7gjzn 2021-04-15 09:15:25
Confocal imaging of live larval zebrafish for assessing peripheral neuropathy
 
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Sandra Rieger DOI:10.17504/protocols.io.8i2huge Diabetic Complications Consortium This protocol describes a method to mount live 8 day-old zebrafish larvae in agarose for capturing fluorescent transgene-expressing peripheral somatosensory axons with confocal imaging. We have previously described a similar method in the Journal of Visualized Experiments (1).Diabetic Complication:References: 1. G. S. O'Brien, S. Rieger, S. M. Martin, A. M. Cavanaugh, C. Portera-Cailliau, A. Sagasti, Twophoton axotomy and time-lapse confocal imaging in live zebrafish embryos. J Vis Exp, (2009). 2. S. Rieger, A. Sagasti, Hydrogen peroxide promotes injury-induced peripheral sensory axon regeneration in the zebrafish skin. PLoS Biol 9, e1000621 (2011); published online EpubMay (10- PLBI-RA-9260R3 [pii] 10.1371/journal.pbio.1000621). 3. A. J. Pittman, M. Y. Law, C. B. Chien, Pathfinding in a large vertebrate axon tract: isotypic interactions guide retinotectal axons at multiple choice points. Development 135, 2865-2871 (2008); published online EpubSep University of Miami https://www.diacomp.org/shared/document.aspx?id=223&docType=Protocol 2 2019 Sandra Rieger 2019. Confocal imaging of live larval zebrafish for assessing peripheral neuropathy. protocols.io https://dx.doi.org/10.17504/protocols.io.8i2huge 2021-04-15 09:15:36
Glucose "Clamp" for measurement of whole body insulin-stimulated glucose disposal
 
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Donald McClain DOI:10.17504/protocols.io.7s9hnh6 Diabetic Complications Consortium This is the standard protocol for measuring insulin action in terms of total body glucose disposal. It is the "gold standard" for quantifying insulin resistance/sensitivity.Diabetic Complications: University of Utah https://www.diacomp.org/shared/document.aspx?id=10&docType=Protocol 2 2019 Donald McClain 2019. Glucose "Clamp" for measurement of whole body insulin-stimulated glucose disposal. protocols.io https://dx.doi.org/10.17504/protocols.io.7s9hnh6 2021-04-15 09:15:53
Induction of Type 1 Diabetes, Myocardial Infarction, Echocardiography, Measurement of Blood Glucose and Tissue Weights
 
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Michael Hill DOI:10.17504/protocols.io.8fmhtk6 Diabetic Complications Consortium Summary:This protocol presented an induction of Type 1 Diabetes, and myocardial Infarction, performed an evaluation of in vivo residual LV function by echocardiography, and measurement of blood glucose and tissue weights of rats.Diabetic Complication: University of Missouri - Columbia https://www.diacomp.org/shared/document.aspx?id=267&docType=Protocol 2 2019 Michael Hill 2019. Induction of Type 1 Diabetes, Myocardial Infarction, Echocardiography, Measurement of Blood Glucose and Tissue Weights. protocols.io https://dx.doi.org/10.17504/protocols.io.8fmhtk6 2021-04-15 09:15:58
Removal and Preservation of the Urinary Bladder
 
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Firuoz Danashgeri DOI:10.17504/protocols.io.8fahtie Diabetic Complications Consortium This protocol describes the proper procedure for harvesting bladders from rats or mice for use by the DiaComp Uropathy group.Diabetic Complication: Case Western Reserve University https://www.diacomp.org/shared/document.aspx?id=30&docType=Protocol 3 2019 Firuoz Danashgeri 2019. Removal and Preservation of the Urinary Bladder. protocols.io https://dx.doi.org/10.17504/protocols.io.8fahtie 2021-04-15 09:15:56
Plantar Analgesia Test for Hind Paw and Tail
 
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Eva Feldman DOI:10.17504/protocols.io.8a3hsgn Diabetic Complications Consortium This protocol measures and quantifies the animals sensitivity to pain in the hind paw. These measurements can be used to evaluate the pathology present in the nervous system.Diabetic Complication: University of Michigan - Ann Arbor https://www.diacomp.org/shared/document.aspx?id=37&docType=Protocol 2 2019 Eva Feldman 2019. Plantar Analgesia Test for Hind Paw and Tail. protocols.io https://dx.doi.org/10.17504/protocols.io.8a3hsgn 2021-04-15 09:16:15
Measurement of Left Ventricular Performance in Langendorff Perfused Mouse Hearts
 
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E. Dale Abel DOI:10.17504/protocols.io.7tfhnjn Diabetic Complications Consortium Summary:This protocol describes the procedure used by the DiaComp for measuring left ventricular performance in isolated retrogradely perfused mouse hearts.Diabetic Complication: University of Iowa https://www.diacomp.org/shared/document.aspx?id=44&docType=Protocol 2 2019 E. Dale Abel 2019. Measurement of Left Ventricular Performance in Langendorff Perfused Mouse Hearts. protocols.io https://dx.doi.org/10.17504/protocols.io.7tfhnjn 2021-04-15 09:16:13
Neuropathy Phentoyping Protocols - Transmission Electron Microscopy
 
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Eva Feldman DOI:10.17504/protocols.io.3nzgmf6 Diabetic Complications Consortium Summary:Phenotyping of Rodents for the Presence of Diabetic Neuropathy In man, the development of diabetic neuropathy is dependent on both the degree of glycemic control and the duration of diabetes. Diabetic neuropathy is a progressive disorder, with signs and symptoms that parallel the loss of nerve fibers over time. Consequently, assessments of neuropathy in mice are not performed at one time point, but are characterized at multiple time points during a 6 month period of diabetes. The degree of diabetes is evaluated in 2 ways: tail blood glucose measured following a 6 hour fast and glycated hemoglobin levels. The initial degree of neuropathy is screened using the methods discussed below. Detailed measures of neuropathy are employed when the initial screening instruments indicate a profound or unique phenotypic difference. This document contains protocols used by the DiaComp staff to examine and measure diabetic neuropathy at the whole animal, tissue and cellular levels.Diabetic Complication: University of Michigan - Ann Arbor https://www.diacomp.org/shared/document.aspx?id=54&docType=Protocol 1 2019 Eva Feldman 2019. Neuropathy Phentoyping Protocols - Transmission Electron Microscopy. protocols.io https://dx.doi.org/10.17504/protocols.io.3nzgmf6 2021-04-15 09:16:26
Neuropathy Phentoyping Protocols - Dosages of Tranquilizers and Anesthetics for Mice, Rats, Hamsters/Gerbils
 
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Eva Feldman DOI:10.17504/protocols.io.3jqgkmw Diabetic Complications Consortium Summary:Phenotyping of Rodents for the Presence of Diabetic Neuropathy In man, the development of diabetic neuropathy is dependent on both the degree of glycemic control and the duration of diabetes. Diabetic neuropathy is a progressive disorder, with signs and symptoms that parallel the loss of nerve fibers over time. Consequently, assessments of neuropathy in mice are not performed at one time point, but are characterized at multiple time points during a 6 month period of diabetes. The degree of diabetes is evaluated in 2 ways: tail blood glucose measured following a 6 hour fast and glycated hemoglobin levels. The initial degree of neuropathy is screened using the methods discussed below. Detailed measures of neuropathy are employed when the initial screening instruments indicate a profound or unique phenotypic difference. This document contains protocols used by the DiaComp staff to examine and measure diabetic neuropathy at the whole animal, tissue and cellular levels.Diabetic Complication: University of Michigan - Ann Arbor https://www.diacomp.org/shared/document.aspx?id=54&docType=Protocol 1 2019 Eva Feldman 2019. Neuropathy Phentoyping Protocols - Dosages of Tranquilizers and Anesthetics for Mice, Rats, Hamsters/Gerbils. protocols.io https://dx.doi.org/10.17504/protocols.io.3jqgkmw 2021-04-15 09:16:25
Serum, Blood and Body Weight Measurements in Pigs
 
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Tim Nichols, Dave Clemmons DOI:10.17504/protocols.io.32agqae Diabetic Complications Consortium These assays are performed on all the pig models studied by the DiaComp to assess their serum chemistry and blood cell counts.Diabetic Complications: University of North Carolina at Chapel Hill, University of North Carolina at Chapel Hill https://www.diacomp.org/shared/document.aspx?id=51&docType=Protocol 1 2019 Tim Nichols, Dave Clemmons 2019. Serum, Blood and Body Weight Measurements in Pigs. protocols.io https://dx.doi.org/10.17504/protocols.io.32agqae 2021-04-15 09:16:18
Measurement of Left Ventricular Hemodynamic Parameters in Intact Mice
 
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E. Dale Abel DOI:10.17504/protocols.io.7tdhni6 Diabetic Complications Consortium This protocol describes the procedure used by the DiaComp for measuring left ventricular hemodynamic parameters in intact mice.Diabetic Complication: University of Iowa https://www.diacomp.org/shared/document.aspx?id=43&docType=Protocol 2 2019 E. Dale Abel 2019. Measurement of Left Ventricular Hemodynamic Parameters in Intact Mice. protocols.io https://dx.doi.org/10.17504/protocols.io.7tdhni6 2021-04-15 09:16:22
Phenotypic Characterization of the Working Heart
 
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E. Dale Abel DOI:10.17504/protocols.io.8a2hsge Diabetic Complications Consortium Summary:This protocol describes the procedure used by the DiaComp for cardiac performance, oxygen consumption and substrate metabolic rates in isolated working mouse hearts.Diabetic Complication:References:1. Belke, D.D., Larsen, T.S., Gibbs, E.M., Severson, D.L. 2001.Glucose metabolism in perfused mouse hearts overexpressing human GLUT-4 glucose transporter. Am J Physiol Endocrinol Metab.280:E420-7.2. Belke, D.D., Larsen, T.S., Gibbs, E.M., Severson, D.L. 2000.Altered metabolism causes cardiac dysfunction in perfused hearts from diabetic (db/db) mice. Am J Physiol Endocrinol Metab.279:E1104-13.3. Belke, D.D., Larsen, T.S., Lopaschuk, G.D., Severson, D.L. 1999.Glucose and fatty acid metabolism in the isolated working mouse heart. Am J Physiol.277:R1210-7.4. Larsen, T.S., Belke, D.D., Sas, R., Giles, W.R., Severson, D.L., Lopaschuk, G.D., Tyberg, J.V. 1999.The isolated working mouse heart: methodological considerations. Pflugers Arch.437:979-85.5. Belke D.D., Betuing S, Tuttle M.J., Graveleau C, Young M.E., Pham M., Zhang D., Cooksey R.C., McClain D.A., Litwin S.E., Taegtmeyer H., Severson D., Kahn C.R., Abel E.D. 2002. Insulin signaling coordinately regulates cardiac size, metabolism, and contractile protein isoform expression. J Clin Invest 109:629-639.6. Mazumder P.K., O’Neill B.T., Roberts M.W., Buchanan J., Yun U.J., Cooksey R.C., Boudina S., Abel E.D. 2004. Impaired Cardiac Efficiency and Increased Fatty Acid Oxidation in Insulin Resistant ob/ob mouse hearts. Diabetes. 53: 2366-2374.7. Suga H: Ventricular energetics. Physiol Rev 70:247-277, 1990 University of Iowa https://www.diacomp.org/shared/document.aspx?id=41&docType=Protocol 2 2019 E. Dale Abel 2019. Phenotypic Characterization of the Working Heart. protocols.io https://dx.doi.org/10.17504/protocols.io.8a2hsge 2021-04-15 09:16:21
Histological Evaluation of Renal Fibrosis in Mice
 
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Daisuke Katagiri, Takamune Takahashi DOI:10.17504/protocols.io.3gygjxw Diabetic Complications Consortium Summary This protocol describes a protocol to evaluate histological fibrosis in mouse kidney. Diabetic Complication:References 1. Katagiri D, Hamasaki Y, Doi K, et al. Interstitial renal fibrosis due to multiple cisplatin treatments is ameliorated by semicarbazide-sensitive amine oxidase inhibition. Kidney Int 2015; 89: 374 - 385. 2. Hara S, Umeyama K, Yokoo T, et al. Diffuse glomerular nodular lesions in diabetic pigs carrying a dominant-negative mutant hepatocyte nuclear factor 1-alpha, an inheritant diabetic gene in humans. PLoS One 2014; 9: e92219. RRID:AB_305584 Vanderbilt University, Vanderbilt University https://www.diacomp.org/shared/document.aspx?id=302&docType=Protocol 1 2019 Daisuke Katagiri, Takamune Takahashi 2019. Histological Evaluation of Renal Fibrosis in Mice. protocols.io https://dx.doi.org/10.17504/protocols.io.3gygjxw 2021-04-15 09:16:37
Low-Dose Streptozotocin Induction Protocol (mouse)
 
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Frank Brosius DOI:10.17504/protocols.io.8izhuf6 Diabetic Complications Consortium This protocol is used by DiaComp members to induce diabetes in a number of the animal models developed by the consortium. STZ is toxic to the insulinproducing beta cells of the pancreas and used to induce a diabetes similar to a type I diabetic (Reference). Some reports suggest cellular toxicity outside of the pancreas. STZ also exhibits broad spectrum antibacterial properties and alters the gut microbiota. Please ensure that appropriate controls are included in all studies and complementary models considered (e.g. the Ins2Akita mouse).Diabetic Complications: University of Arizona https://www.diacomp.org/shared/document.aspx?id=19&docType=Protocol 2 2019 Frank Brosius 2019. Low-Dose Streptozotocin Induction Protocol (mouse). protocols.io https://dx.doi.org/10.17504/protocols.io.8izhuf6 2021-04-15 09:16:48
Determination of Podocyte Number and Density in Rodent Glomeruli
 
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Frank Brosius DOI:10.17504/protocols.io.8eyhtfw Diabetic Complications Consortium This protocol describes a validated protocol used by some DiaComp members to determine podocyte numbers in rodent glomeruli.Edited by: Brosius LaboratoryDiabetic Complication:Reference: Sanden SK, Wiggins JE, Goyal M, Riggs LK, and Wiggins RC. Evaluation of a thick and thin section method for estimation of podocyte number, glomerular volume, and glomerular volume per podocyte in rat kidney with Wilms' tumor-1 protein used as a podocyte nuclear marker. J Am Soc Nephrol 14: 2484-2493, 2003. University of Arizona https://diacomp.org/shared/document.aspx?id=62&docType=Protocol 2 2019 Frank Brosius 2019. Determination of Podocyte Number and Density in Rodent Glomeruli. protocols.io https://dx.doi.org/10.17504/protocols.io.8eyhtfw 2021-04-15 09:16:56
Biochemical Measures of Neuropathy - Lowry Protein Assay
 
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Eva Feldman DOI:10.17504/protocols.io.3sggnbw Diabetic Complications Consortium Summary:Oxidative stress is highly correlated with the metabolic changes caused by hyperglycemia. Increased levels of glucose overload mitochondria and result in the production of reactive oxygen species (ROS). In addition, the flow of excess glucose through cellular pathways decreases the cell’s normal ability to detoxify ROS. As a result, the neurons and axons of the peripheral nervous system contain increased levels of ROS and decreased antioxidant capacity. The following assays are used to measure these changes in rodent models of diabetic neuropathy. Diabetic Complication: University of Michigan - Ann Arbor https://www.diacomp.org/shared/document.aspx?id=54&docType=Protocol 1 2019 Eva Feldman 2019. Biochemical Measures of Neuropathy - Lowry Protein Assay. protocols.io https://dx.doi.org/10.17504/protocols.io.3sggnbw 2021-04-15 09:16:31
Determination of Glomerular Filtration Rate in Conscious Mice using FITC-inulin
 
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Zhonghua Qi, Matthew D. Breyer DOI:10.17504/protocols.io.3fngjme Diabetic Complications Consortium This protocol describes the procedures for estimating glomerular filtration rate in conscious mice based on Fluorescein Isothiocyanate-inulin (FITC-inulin) clearance following a single bolus intravenous injection. Diabetic Complication:Reference:1. Hem, A., Smith, A.J., and Solberg, P. 1998. Saphenous vein puncture for blood sampling of the mouse, rat, hamster, gerbil, guinea pig, ferret and mink. Lab Anim 32:364-368. 2. Sturgeon, C., Sam, A.D., 2nd, and Law, W.R. 1998. Rapid determination of glomerular filtration rate by single-bolus inulin: a comparison of estimation analyses. J Appl Physiol 84:2154-2162. 3. Qi, Z., Whitt, I., Mehta, A., Jin, J., Zhao, M., Harris, R.C., Fogo, A.B., and Breyer, M.D. 2003. Serial Determination of Glomerular Filtration Rate in Conscious Mice Using FITC-Inulin Clearance. Am J Physiol Renal Physiol. Vanderbilt University, Eli Lilly Company https://www.diacomp.org/shared/document.aspx?id=28&docType=Protocol 1 2019 Zhonghua Qi, Matthew D. Breyer 2019. Determination of Glomerular Filtration Rate in Conscious Mice using FITC-inulin. protocols.io https://dx.doi.org/10.17504/protocols.io.3fngjme 2021-04-15 09:16:32
Plasma Insulin (LINCO ELISA)
 
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Willa Hsueh, Alan Collins DOI:10.17504/protocols.io.8a4hsgw Diabetic Complications Consortium This Rat / Mouse Insulin ELISA kit is used for the non radioactive quantification of insulin in mouse and rat sera. Plasma samples may also be used but application to samples of other biological fluids may need validation by the user.Diabetic Complications: The Ohio State University College of Medicine, The Ohio State University College of Medicine https://www.diacomp.org/shared/document.aspx?id=48&docType=Protocol 2 2019 Willa Hsueh, Alan Collins 2019. Plasma Insulin (LINCO ELISA). protocols.io https://dx.doi.org/10.17504/protocols.io.8a4hsgw 2021-04-15 09:16:40

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