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Articles 1 - 14 of 14
Full-Text Articles in Medical Sciences
Fluorescent Peptide For Detecting Factor Xiiia Activity And Fibrin In Whole Blood Clots Forming Under Flow, Yue Liu, Jennifer Crossen, Timothy J. Stalker, Scott L. Diamond
Fluorescent Peptide For Detecting Factor Xiiia Activity And Fibrin In Whole Blood Clots Forming Under Flow, Yue Liu, Jennifer Crossen, Timothy J. Stalker, Scott L. Diamond
Cardeza Foundation for Hematologic Research
Background
During clotting, thrombin generates fibrin monomers and activates plasma-derived transglutaminase factor (F) XIIIa; collagen and thrombin-activated platelets offer thrombin-independent cellular FXIIIa (cFXIIIa) for clotting. Detecting fibrin on collagen and tissue factor surfaces in whole blood clotting typically uses complex reagents like fluorescent fibrinogen or antifibrin antibody.
Objectives
We want to test whether the peptide using the α2- antiplasmin crosslinking mechanism by FXIIIa is a useful tool in both monitoring FXIIIa activity, and visualize and monitor fibrin formation, deposition, and extent of crosslinking within fibrin structures in whole blood clots formed under flow.
Methods
We tested a fluorescent peptide derived …
C9orf72 Poly(Pr) Mediated Neurodegeneration Is Associated With Nucleolar Stress, M. E. Cicardi, J. H. Hallgren, D. Mawrie, K. Krishnamurthy, S. S. Markandaiah, A. T. Nelson, V. Kankate, E. N. Anderson, P. Pasinelli, U. B. Pandey, C. M. Eischen, D. Trotti
C9orf72 Poly(Pr) Mediated Neurodegeneration Is Associated With Nucleolar Stress, M. E. Cicardi, J. H. Hallgren, D. Mawrie, K. Krishnamurthy, S. S. Markandaiah, A. T. Nelson, V. Kankate, E. N. Anderson, P. Pasinelli, U. B. Pandey, C. M. Eischen, D. Trotti
Farber Institute for Neuroscience Faculty Papers
The ALS/FTD-linked intronic hexanucleotide repeat expansion in the C9orf72 gene is aberrantly translated in the sense and antisense directions into dipeptide repeat proteins, among which poly proline-arginine (PR) displays the most aggressive neurotoxicity in-vitro and in-vivo. PR partitions to the nucleus when heterologously expressed in neurons and other cell types. We show that by lessening the nuclear accumulation of PR, we can drastically reduce its neurotoxicity. PR strongly accumulates in the nucleolus, a nuclear structure critical in regulating the cell stress response. We determined that, in neurons, PR caused nucleolar stress and increased levels of the transcription factor p53. …
Gene Signature Reveals Decreased Sox10-Dependent Transcripts In Malignant Cells From Immune Checkpoint Inhibitor-Resistant Cutaneous Melanomas, Timothy J. Purwin, Signe Caksa, Ahmet Sacan, Claudia Capparelli, Andrew E. Aplin
Gene Signature Reveals Decreased Sox10-Dependent Transcripts In Malignant Cells From Immune Checkpoint Inhibitor-Resistant Cutaneous Melanomas, Timothy J. Purwin, Signe Caksa, Ahmet Sacan, Claudia Capparelli, Andrew E. Aplin
Department of Pharmacology, Physiology, and Cancer Biology Faculty Papers
Evidence is mounting for cross-resistance between immune checkpoint and targeted kinase inhibitor therapies in cutaneous melanoma patients. Since the loss of the transcription factor, SOX10, causes tolerance to MAPK pathway inhibitors, we used bioinformatic techniques to determine if reduced SOX10 expression/activity is associated with immune checkpoint inhibitor resistance. We integrated SOX10 ChIP-seq, knockout RNA-seq, and knockdown ATAC-seq data from melanoma cell models to develop a robust SOX10 gene signature. We used computational methods to validate this signature as a measure of SOX10-dependent activity in independent single-cell and bulk RNA-seq SOX10 knockdown, cell line panel, and MAPK inhibitor drug-resistant datasets. Evaluation …
1485-Pub: Assessing Correlates Of Microvascular Complications Among Patients With Diabetes Mellitus, Kenneth Izuora, Amalie Alver, Arpita Basu, Kavita Batra, Shelley J. Williams, Jeffrey L. Ebersole
1485-Pub: Assessing Correlates Of Microvascular Complications Among Patients With Diabetes Mellitus, Kenneth Izuora, Amalie Alver, Arpita Basu, Kavita Batra, Shelley J. Williams, Jeffrey L. Ebersole
Internal Medicine Faculty Publications
Background: Microvascular complications associated with diabetes (DM) are important predictors of morbidity and mortality. Understanding the factors associated with these complications is important in reducing their burden. Method: Using a cross-sectional study design, seventy-one ambulatory patients with Type 2 DM (female 60.6%, white 36.6%, mean age 64.1± 10.3 years, and mean duration of DM 15.8±9.1 years) were recruited using an investigator-administered questionnaire and chart review. Variables of demographics, smoking, HbA1c, DM duration, and complications were collected. CRP was measured and oral health status was assessed by a clinical exam. Data were analyzed using Chi-square/Fisher exact tests and binomial logistic regression …
Regulation Of Gut Commensal-Specific T Cell Differentiation By Dendritic Cell Subsets, Emilie Russler-Germain
Regulation Of Gut Commensal-Specific T Cell Differentiation By Dendritic Cell Subsets, Emilie Russler-Germain
Arts & Sciences Electronic Theses and Dissertations
The mammalian gastrointestinal tract can harbor both beneficial commensal organisms important for host health, but also pathogenic organisms capable of intestinal damage. It is therefore important that the host immune system mounts appropriate responses to different intestinal organisms – promoting tolerance to some, controlling the colonization of others, and inducing sterilizing immunity in cases of noxious pathogens. Failure to induce tolerance to commensal organisms may underlie immune-mediated diseases such as human inflammatory bowel disease, while inappropriate tolerance to more harmful organisms has the potential to result in infection, inflammation, or even malabsorption. Adaptive immune responses to intestinal commensal organisms are …
Attenuation Of Postoperative Adhesions Using A Modeled Manual Therapy (Data Files), Geoffrey M. Bove, Susan L. Chapelle, Katherine E. Hanlon, Michael P. Diamond, David J. Mokler
Attenuation Of Postoperative Adhesions Using A Modeled Manual Therapy (Data Files), Geoffrey M. Bove, Susan L. Chapelle, Katherine E. Hanlon, Michael P. Diamond, David J. Mokler
Biomedical Sciences Faculty Publications
These files include data and figures utilized to research and communicate the following:
Postoperative adhesions are pathological attachments that develop between abdominopelvic structures following surgery. Considered unavoidable and ubiquitous, postoperative adhesions lead to bowel obstructions, infertility, pain, and reoperations, and represent a substantial health care challenge. Despite over a century of research, no preventive treatment exists. Based on the hypothesis that postoperative adhesions develop from a lack of movement of the abdominopelvic organs, we proposed a relatively simple treatment approach using a modified manual therapy technique that mobilizes abdominopelvic structures in the immediate postoperative period while they are otherwise rendered …
Dynamical System Modeling To Simulate Donor T Cell Response To Whole Exome Sequencing-Derived Recipient Peptides: Understanding Randomness In Alloreactivity Incidence Following Stem Cell Transplantation, Vishal Koparde, Badar Abdul Razzaq, Tara Suntum, Roy Sabo, Allison Scalora, Myrna Serrano, Max Jameson-Lee, Charles Hall, David Kobulnicky, Nihar Sheth, Juliana Feltz, Daniel Contaifer, Dayanjan Wijesinghe, Jason Reed, Catherine Roberts, Rehan Qayyum, Gregory Buck, Michael Neale, Amir Toor
Dynamical System Modeling To Simulate Donor T Cell Response To Whole Exome Sequencing-Derived Recipient Peptides: Understanding Randomness In Alloreactivity Incidence Following Stem Cell Transplantation, Vishal Koparde, Badar Abdul Razzaq, Tara Suntum, Roy Sabo, Allison Scalora, Myrna Serrano, Max Jameson-Lee, Charles Hall, David Kobulnicky, Nihar Sheth, Juliana Feltz, Daniel Contaifer, Dayanjan Wijesinghe, Jason Reed, Catherine Roberts, Rehan Qayyum, Gregory Buck, Michael Neale, Amir Toor
Massey Comprehensive Cancer Center Data
Quantitative relationship between the magnitude of variation in minor histocompatibility antigens (mHA) and graft versus host disease (GVHD) pathophysiology in stem cell transplant (SCT) donor-recipient pairs (DRP) is not established. In order to elucidate this relationship, whole exome sequencing (WES) was performed on 27 HLA matched related (MRD), & 50 unrelated donors (URD), to identify nonsynonymous single nucleotide polymorphisms (SNPs). An average 2,463 SNPs were identified in MRD, and 4,287 in URD DRP (p
Flash4 Dark Reference Images, George Mcnamara
Flash4 Dark Reference Images, George Mcnamara
George McNamara
Hamamatsu FLASH4.0 dark reference images, acquired with 10 second exposure times, no light to camera. Camera offset (set by Hamamatsu( is ~100 (the average intensity of the first image is always ~1 intensity level higher - an odd feature, but trivial in practice for a 16-bit camera).
George McNamara, Ph.D.
Single Cells Analyst at L.J.N. Cooper Lab
University of Texas M.D. Anderson Cancer Center
Pubspectra Tattletales, George Mcnamara
Pubspectra Tattletales, George Mcnamara
George McNamara
Tattletales for Multiplex Fluorescent Reporters in Single Cells for Metabolomics
George McNamara
As of April 2013: L.J.N. Cooper & D.A. Lee Cellular Immunotherapy Lab, University of Texas M.D. Anderson Cancer Center, Houston, TX
Email: gtmcnamara@mdanderson.org, geomcnamara@earthlink.net
Tattletales is my concept for spatial multiplexing many fluorescent protein (FP) biosensors in the same live cell. For example, there are excellent FP biosensors to Ca++ ions, pH, glucose, ribose, glutamine, glutamate, ATP, redox, ROS, pyruvate, cAMP, cGMP, IP3, PI(3,4,5)P3, cell cycle indicators (Fucci2), PKA, PKC, photsphatases, caspase(s) [1, 2]. However, these are typically used one biosensor per experiment, due in part to flooding …
Halloween 2012 Jack O'Lanterns Trick Or Treat, George Mcnamara
Halloween 2012 Jack O'Lanterns Trick Or Treat, George Mcnamara
George McNamara
Halloween 2012 makes trick or treating more visual and interactive than in past years.
the download is a ZIP file containing three files.
Print out the (unnumbered) image on as large and nice printer paper as possible - I used glossy 44" wide here in Miami (University of Miami, MillerSchool of Medicine, Calder Library, Biomedical Communications dept - I also made another print on "fabric", also 44" wide to take with me to an HHMI Janelia Farm conference on 'turning images into knowledge' that ends on Oct 31 - might stay up for a second conference, "GFP..." that start Nov …
Mcnamara 20120831fri-20120904tue Cosmic Ray Particles By Ccd Imaging, George Mcnamara
Mcnamara 20120831fri-20120904tue Cosmic Ray Particles By Ccd Imaging, George Mcnamara
George McNamara
McNamara 20120831Fri-20120904Tue Cosmic Ray Particles by CCD imaging.zip contains image files in support of a Microscopy Today article - please see
http://www.microscopy-today.com/
Cosmic Ray Particles Images With Orca-Ii Erg, George Mcnamara
Cosmic Ray Particles Images With Orca-Ii Erg, George Mcnamara
George McNamara
Cosmic ray particles image series acquired using a Hamamatsu ORCA-II ERG scientific grade CCD camera, cooled to -60 C. Each image is a consecutive 600 second (10 minute) exposure time with no light to the camera.
While processing the data, I discoverd that the background changed around planes 25 and 227 (see Excel file and jpeg screenshots), so I also processed only planes 025-227 (203 planes total, 2030 minutes, 33.83 hours). the CCD industry "rule of thumb" for a "typical" CCD sensor (i.e. 1/3" CCD) is that one cosmic ray particle strikes a sensor approximately every 30 seconds (assuming not …
Pubspectra - Open Data Access Fluorescence Spectra, George Mcnamara
Pubspectra - Open Data Access Fluorescence Spectra, George Mcnamara
George McNamara
The Internet is enabling greater access to spectral imaging publications, spectral graphs, and data than that was available a generation ago. The spectral imaging systems discussed in this issue of Cytometry work because reagent and hardware spectra are reproducible, reusable, and provide input to spectral unmixing and spectral components recognition algorithms. These spectra need to be readily available in order to determine what to purchase, how to use it, and what the output means. We refer to several commercially sponsored and academic spectral web sites and discuss our spectral graphing and data sites. Sites include fluorescent dye graph servers from …
Mcnamara 2011 Feature Extraction (Image Analysis), George Mcnamara
Mcnamara 2011 Feature Extraction (Image Analysis), George Mcnamara
George McNamara
Feature Extraction presentation and movies in a ZIP file from a presentation I gave at ISAC 2011 in Baltomore, Md.
Feature extraction is one phrase for image analysis.