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- Image processing (2)
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- Animal models ; cartilage repair ; chondrocytes ; collagens ; proteoglycans (1)
- Cell delivery vehicle;Chondrogenic differentiation; Human amnion; Mesenchymal Stem Cells (MSCs) (1)
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Articles 1 - 20 of 20
Full-Text Articles in Medicine and Health Sciences
Distributions Of Hypothalamic Neuron Populations Co-Expressing Tyrosine Hydroxylase And The Vesicular Gaba Transporter In The Mouse., Kenichiro Negishi, Mikayla A. Payant, Kayla S. Schumacker, Gabor Wittman, Rebecca M. Butler, Ronald M. Lechan, Harry W. M. Steinbusch M, Arshad M. Khan, Melissa J. Chee
Distributions Of Hypothalamic Neuron Populations Co-Expressing Tyrosine Hydroxylase And The Vesicular Gaba Transporter In The Mouse., Kenichiro Negishi, Mikayla A. Payant, Kayla S. Schumacker, Gabor Wittman, Rebecca M. Butler, Ronald M. Lechan, Harry W. M. Steinbusch M, Arshad M. Khan, Melissa J. Chee
Arshad M. Khan, Ph.D.
No abstract provided.
Pathscan Enabler At Md Anderson Cancer Center, George Mcnamara
Pathscan Enabler At Md Anderson Cancer Center, George Mcnamara
George McNamara
McNamara 20140703 - Additional Pathscan and Tiki_Goddess related resources
http://works.bepress.com/gmcnamara/52
http://home.earthlink.net/~tiki_goddess/
http://works.bepress.com/gmcnamara/1/
http://works.bepress.com/gmcnamara/11/
https://www.linkedin.com/in/georgemcnamara
Our Pathscan Enabler IV, delivered July 2014, uses the QuickScan software to scan a histology slide in "two clicks" (after loading the
slide):
1. Push the QuickScan button on the front of the Pathscan Enabler.
2. Click the Scan button in the QuickScan pop-up application (optional: change scan area in the Prescan image window).
The image gets saved as a TIFF file to the Windows 7 (64-bit) desktop.
I have been using Pathscan Enabler's since version I in 2000. See Chantrain et al 2003:
Chantrain CF, …
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
Video Codec Performance (Excel Spreadsheet), George Mcnamara
Video Codec Performance (Excel Spreadsheet), George Mcnamara
George McNamara
Video codec performance (Excel spreadsheet). Movie was made in 2005-2006 when I worked at City of Hope National Medical Center. VTLF refers to Video Timelapse Light Facility. Videos were outputted from MetaMorph as AVI files. Personally, I always recommend uncompressed video files fro scientific uses. I also encourage posting the original scientific data format (ex. .lsm, .zvi, .lif, .stk).
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 …
Flatbed Scanner Report - Optical Density Dynamic Range, George Mcnamara
Flatbed Scanner Report - Optical Density Dynamic Range, George Mcnamara
George McNamara
George McNamara (now at University of Miami) report for Hua Yu and Richard Jove, City of Hope National Medical Center, on optical density dynamic range of several flatbed scanners.
Introduction To Nanoscopy Nano-Talk, George Mcnamara
Introduction To Nanoscopy Nano-Talk, George Mcnamara
George McNamara
T7-1 is the designation for the LMRG Nanoscopy session at ABRF in Orlando, FL, on March 20, 2012. The PDF file here is a draft of my presentation.
May not be very helpful since (1) would probably help to know what is in my head and each slide will [hopefully] prompt me to say, and (2) 10 minute talk so I am going to push the "next slide" button after saying very little.
__________________
Publisher statement:
The T7-1 Introduction to Nanoscopy Nano Talk is copyrighted (c) George McNamara, 2012. Except for (1) screenshots from research articles (which are copyrighted by …
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.
Rogers Pmn Movie - Background Information, George Mcnamara
Rogers Pmn Movie - Background Information, George Mcnamara
George McNamara
Please see
http://mdc.custhelp.com/app/answers/detail/a_id/18689/~/metamatters-newsletters
for my series of MetaMorph MetaMatters articles in volume 2, numbers 3 through 6, on the Rogers PMN Panorama data set.
http://mdc.custhelp.com/app/answers/detail/a_id/18689/~/metamatters-newsletters
Brief summary (for more, see the Word doc)
A New Eusuchian Crocodyliform With Novel Cranial Integument And Its Significance For The Origin And Evolution Of Crocodylia, Casey Holliday, Nicholas Gardner
A New Eusuchian Crocodyliform With Novel Cranial Integument And Its Significance For The Origin And Evolution Of Crocodylia, Casey Holliday, Nicholas Gardner
Nicholas Gardner
Crocodyliforms were one of the most successful groups of Mesozoic tetrapods, radiating into terrestrial, semiaquatic and marine environments, while occupying numerous trophic niches, including carnivorous, insectivorous, herbivorous, and piscivorous species. Among these taxa were the enigmatic, poorly represented flat-headed crocodyliforms from the late Cretaceous of northern Africa. Here we report a new, giant crocodyliform from the early Late Cretaceous (Cenomanian) Kem Kem Formation of Morocco. Represented by a partial braincase, the taxon has an extremely long, flat skull with large jaw and craniocervical muscles. The skull roof is ridged and ornamented with a broad, rough boss surrounded by significant vascular …
Mcnamara 2011 Mpmicro - Multi-Probe Microscopy (10/31/2011), George Mcnamara
Mcnamara 2011 Mpmicro - Multi-Probe Microscopy (10/31/2011), George Mcnamara
George McNamara
Multi-Probe Microscopy is an ~1500 page Word document summarizing what I know and/or found interesting in light microscopy, fluorescence microscopy and digital image analysis, from 1995-2005. Very little has been updated since 2005.
Expansion And Preservation Of Multipotentiality Of Rabbit Bone-Marrow Derived Mesenchymal Stem Cells In Dextran-Based Microcarrier Spin Culture, Tunku Kamarul Zaman
Expansion And Preservation Of Multipotentiality Of Rabbit Bone-Marrow Derived Mesenchymal Stem Cells In Dextran-Based Microcarrier Spin Culture, Tunku Kamarul Zaman
Tunku Kamarul Zaman
The use of mesenchymal stem cells (MSCs) in tissue repair and regeneration despite their multipotentiality has been limited by their cell source quantity and decelerating proliferative yield efficiency. A study was thus undertaken to determine the feasibility of using microcarrier beads in spinner flask cultures for MSCs expansion and compared to that of conventional monolayer cultures and static microcarrier cultures. Isolation and characterization of bone marrow derived MSCs were conducted from six adult New Zealand white rabbits. Analysis of cell morphology on microcarriers and culture plates at different time points (D0, D3, D10, D14) during cell culture were performed using …
A Preliminary Study Comparing The Use Of Allogenic Chondrogenic Pre-Differentiated And Undifferentiated Mesenchymal Stem Cells For The Repair Of Full Thickness Articular Cartilage Defects In Rabbits, Tunku Kamarul Zaman
Tunku Kamarul Zaman
Chondrogenic differentiated mesenchymal stem cells (CMSCs) have been shown to produce superior chondrogenic expression markers in vitro. However, the use of these cells in vivo has not been fully explored. In this study, in vivo assessment of cartilage repair potential between allogenic-derived chondrogenic pre-differentiated mesenchymal stem cells and undifferentiated MSCs (MSCs) were compared. Bilateral full thickness cartilage defects were created on the medial femoral condyles of 12 rabbits (n = 12). Rabbits were divided into two groups. In one group, the defects in the right knees were repaired using alginate encapsulated MSCs while in the second group, CMSCs were used. …
Platelet-Rich Plasma (Prp) Enhances Bone Healing In Non-United Critical-Sized Defects: A Preliminary Study Involving Rabbit Models, Tunku Kamarul Zaman
Platelet-Rich Plasma (Prp) Enhances Bone Healing In Non-United Critical-Sized Defects: A Preliminary Study Involving Rabbit Models, Tunku Kamarul Zaman
Tunku Kamarul Zaman
Introduction: The use of bone grafts in treating non- or delayed unions as the result of large bone loss is well established. However, despite good outcomes, the time to achieve complete union is still considerably long. To overcome this problem, the use of platelet-rich plasma (PRP) has been advocated albeit with varying success. To determine the true effectiveness of PRP in treating non-/delayed unions, a study was conducted using (n = 12) rabbit models. Methods and materials: Critical-sized defects measuring 2 cm created in the midshaft of the right rabbit tibias were stabilised using 2.7-mm small fragment plates. A spacer …
A Preliminary Study Of The Effects Of Glucosamine Sulphate And Chondroitin Sulphate On Surgically Treated And Untreated Focal Cartilage Damage, Tunku Kamarul Zaman
A Preliminary Study Of The Effects Of Glucosamine Sulphate And Chondroitin Sulphate On Surgically Treated And Untreated Focal Cartilage Damage, Tunku Kamarul Zaman
Tunku Kamarul Zaman
The effects of Glucosamine Sulphate (GS) and Chondroitin Sulphate (CS) on the healing of damaged and repaired articular cartilage were investigated. This study was conducted using 18 New Zealand white rabbits as experimental models. Focal cartilage defects, surgically created in the medial femoral condyle, were either treated by means of autologous chondrocyte implantation (ACI) or left untreated as controls. Rabbits were then divided into groups which received either GS+/-CS or no pharmacotherapy. Three rabbits from each group were sacrificed at 12 and 24 weeks post-surgery. Knees dissected from rabbits were then evaluated using gross quantification of repair tissue, glycosaminoglycan (GAG) …
Human Amnion As A Novel Cell Delivery Vehicle For Chondrogenic Mesenchymal Stem Cells, Tunku Kamarul Zaman
Human Amnion As A Novel Cell Delivery Vehicle For Chondrogenic Mesenchymal Stem Cells, Tunku Kamarul Zaman
Tunku Kamarul Zaman
This study investigates the feasibility of processed human amnion (HAM) as a substrate for chondrogenic differentiation of mesenchymal stem cells (MSCs). HAM preparations processed by air drying (AD) and freeze drying (FD) underwent histological examination and MSC seeding in chondrogenic medium for 15 days. Monolayer cultures were used as control for chondrogenic differentiation and HAMs without cell seeding were used as negative control. Qualitative observations were made using scanning electron microscopy analysis and quantitative analyses were based on the sulfated glycosaminoglycans (GAG) assays performed on day 1 and day 15. Histological examination of HAM substrates before seeding revealed a smooth …