Javier Adur |
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To join, leave or search the confocal microscopy listserv, go to: http://lists.umn.edu/cgi-bin/wa?A0=confocalmicroscopy ***** Dear list, We want to evaluate the bone augmentation in rabbit tibia using Tetracycline or similar. Does anyone know a protocol of inmunohistochemistry o reference literature about it. Thanks in advance. Javier Dr. Javier F. Adur Docente/Investigador - Facultad de Ingeniería - UNER - Argentina Laboratorio de Microscopia Aplicada a Estudios Celulares y Moleculares Cátedra Radiaciones No Ionizantes |
Chris Tully |
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To join, leave or search the confocal microscopy listserv, go to: http://lists.umn.edu/cgi-bin/wa?A0=confocalmicroscopy ***** Javier, I am NOT a Pathologist, but for the last three years have been providing demonstrations of digital pathology equipment to pathologists across the world. I have left that position and opened a consulting company, Image Incyte, LLC. I only saw bone samples a few times in my multiple demos. What I do recall though is: Errors in animal treatments have been identified by characteristic tetracycline rings on bones - meaning that you do not have to specifically stain for tetracycline, it shows up on it's own. I believe that the drug is actually incorporated whole in the bone and shows up with distinctive fluorescence. I found this note: http://www.histosearch.com/histonet/Dec02/TetracyclinelabelingofbonA.html on the Wikipedia page for tetracycline: http://en.wikipedia.org/wiki/Tetracycline#cite_note-mayton-15 I hope that helps you get started on your search. Chris Tully Microscopy and Image Analysis Expert Image Incyte, LLC www.ImageIncyte.com [hidden email] [hidden email] 240-475-9753 (c) [image: View my profile on LinkedIn]<http://www.linkedin.com/in/christully/> On Wed, May 15, 2013 at 10:16 AM, Javier Adur <[hidden email]> wrote: > ***** > To join, leave or search the confocal microscopy listserv, go to: > http://lists.umn.edu/cgi-bin/wa?A0=confocalmicroscopy > ***** > > Dear list, > We want to evaluate the bone augmentation in rabbit tibia using > Tetracycline or similar. > Does anyone know a protocol of inmunohistochemistry o reference literature > about it. > Thanks in advance. > Javier > > > > > > > > > Dr. Javier F. Adur > > Docente/Investigador > - Facultad de Ingeniería - UNER - Argentina > > Laboratorio de > Microscopia Aplicada a Estudios Celulares y Moleculares > > Cátedra Radiaciones > No Ionizantes > > |
Jeremy Adler-4 |
In reply to this post by Javier Adur
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To join, leave or search the confocal microscopy listserv, go to: http://lists.umn.edu/cgi-bin/wa?A0=confocalmicroscopy ***** tetracycline fluoresces Quoting Javier Adur <[hidden email]>: > ***** > To join, leave or search the confocal microscopy listserv, go to: > http://lists.umn.edu/cgi-bin/wa?A0=confocalmicroscopy > ***** > > Dear list, > We want to evaluate the bone augmentation in rabbit tibia using > Tetracycline or similar. > Does anyone know a protocol of inmunohistochemistry o reference > literature about it. > Thanks in advance. > Javier > > > > > > > > > Dr. Javier F. Adur > > Docente/Investigador > - Facultad de Ingeniería - UNER - Argentina > > Laboratorio de > Microscopia Aplicada a Estudios Celulares y Moleculares > > Cátedra Radiaciones > No Ionizantes > > Jeremy Adler IGP Rudbeckslaboratoriet Daghammersköljdsväg 20 751 85 Uppsala Sweden 0046 (0)18 471 4607 |
Doube, Michael |
In reply to this post by Javier Adur
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To join, leave or search the confocal microscopy listserv, go to: http://lists.umn.edu/cgi-bin/wa?A0=confocalmicroscopy ***** Dear Javier, > We want to evaluate the bone augmentation in rabbit tibia using > Tetracycline or similar. I think you are referring to the very old technique of in-vivo labelling of mineral apposition in calcified tissues, right? In which case you might consider other labels such as alizarin and calcein (green and blue). Calcein green in particular gives a stable bright green fluorescence and works well with fluorescein filters and excitation with a 488nm laser. Main issue is the yellowish autofluorescence from the bone matrix and cells themselves. But, that, and the backscattered reflected light can be used to your advantage to give tissue contrast without further processing. See e.g. (shameless self-promotion warning): Doube, M., Firth, E. C. & Boyde, A. Variations in articular calcified cartilage by site and exercise in the 18-month-old equine distal metacarpal condyle. Osteoarth Cart 15, 1283–1292 (2007). http://dx.doi.org/10.1016/j.joca.2007.04.003 And the originals: 1.FROST, H. M. Measurement of human bone formation by means of tetracycline labelling. Can J Biochem Physiol 41, 31–42 (1963). 2.FROST, H. M. Tetracycline labelling of bone and the zone of demarcation of osteoid seams. Can J Biochem Physiol 40, 485–489 (1962). There is lots more literature on labelling protocols, see e.g. Erben, R. G. & Glösmann, M. Histomorphometry in rodents. Methods Mol. Biol. 816, 279–303 (2012). http://dx.doi.org/10.1007/978-1-61779-415-5_19 Michael [http://www.rvc.ac.uk/cf_images/button_rvc.png]<http://www.rvc.ac.uk> [http://www.rvc.ac.uk/cf_images/button_twitter.png] <http://twitter.com/RoyalVetCollege> [http://www.rvc.ac.uk/cf_images/button_facebook.png] <http://www.facebook.com/theRVC> This message, together with any attachments, is intended for the stated addressee(s) only and may contain privileged or confidential information. Any views or opinions presented are solely those of the author and do not necessarily represent those of the Royal Veterinary College (RVC). If you are not the intended recipient, please notify the sender and be advised that you have received this message in error and that any use, dissemination, forwarding, printing, or copying is strictly prohibited. Unless stated expressly in this email, this email does not create, form part of, or vary any contractual or unilateral obligation. Email communication cannot be guaranteed to be secure or error free as information could be intercepted, corrupted, amended, lost, destroyed, incomplete or contain viruses. Therefore, we do not accept liability for any such matters or their consequences. Communication with us by email will be taken as acceptance of the risks inherent in doing so. |
In reply to this post by Jeremy Adler-4
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To join, leave or search the confocal microscopy listserv, go to: http://lists.umn.edu/cgi-bin/wa?A0=confocalmicroscopy ***** In the early 1990s I imaged what sounds like this for a renal MD. He had bone biopsies from patients given tetracycline as an indicator of bone growth which was a diagnostic tool for success/failure or kidney transplant. The question was whether the confocal could avoid the prep of the standard technique of getting a neat cross section. But we could not image depth of tetracycline ring accurately by looking at the surface and trying to do a Z series. And for imaging cross sections, we found the confocal was no improvement over the then clinical practice. Back then we were using a 60X NA 1.4 Nikon fixed tube length objective; maybe newer microscopes could do better. Regards, Michael C. -----Original Message----- From: Confocal Microscopy List [mailto:[hidden email]] On Behalf Of Jeremy Adler Sent: Thursday, May 16, 2013 3:28 AM To: [hidden email] Subject: Re: Tetracycline to bone augmentation ***** To join, leave or search the confocal microscopy listserv, go to: http://lists.umn.edu/cgi-bin/wa?A0=confocalmicroscopy ***** tetracycline fluoresces Quoting Javier Adur <[hidden email]>: > ***** > To join, leave or search the confocal microscopy listserv, go to: > http://lists.umn.edu/cgi-bin/wa?A0=confocalmicroscopy > ***** > > Dear list, > We want to evaluate the bone augmentation in rabbit tibia using > Tetracycline or similar. > Does anyone know a protocol of inmunohistochemistry o reference > literature about it. > Thanks in advance. > Javier > > > > > > > > > Dr. Javier F. Adur > > Docente/Investigador > - Facultad de Ingeniería - UNER - Argentina > > Laboratorio de > Microscopia Aplicada a Estudios Celulares y Moleculares > > Cátedra Radiaciones > No Ionizantes > > Jeremy Adler IGP Rudbeckslaboratoriet Daghammersköljdsväg 20 751 85 Uppsala Sweden 0046 (0)18 471 4607 |
Tim Feinstein-2 |
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To join, leave or search the confocal microscopy listserv, go to: http://lists.umn.edu/cgi-bin/wa?A0=confocalmicroscopy ***** Without a doubt you still need sectioning to measure bone deposition by tetracycline fluorescence. Bone is only 10-30% tissue and at least 70% hydroxyapatite, a mineral that does not transmit light. This property has given my current research group, which very much would like to see bone cells in their natural environment, more than a little bit of grief. cheers, TF Timothy Feinstein, PhD Visiting Research Associate Laboratory for GPCR Biology Dept. of Pharmacology & Chemical Biology University of Pittsburgh, School of Medicine BST W1301, 200 Lothrop St. Pittsburgh, PA 15261 On May 16, 2013, at 11:43 AM, Cammer, Michael wrote: > ***** > To join, leave or search the confocal microscopy listserv, go to: > http://lists.umn.edu/cgi-bin/wa?A0=confocalmicroscopy > ***** > > In the early 1990s I imaged what sounds like this for a renal MD. He had bone biopsies from patients given tetracycline as an indicator of bone growth which was a diagnostic tool for success/failure or kidney transplant. The question was whether the confocal could avoid the prep of the standard technique of getting a neat cross section. But we could not image depth of tetracycline ring accurately by looking at the surface and trying to do a Z series. And for imaging cross sections, we found the confocal was no improvement over the then clinical practice. Back then we were using a 60X NA 1.4 Nikon fixed tube length objective; maybe newer microscopes could do better. > Regards, > Michael C. > > -----Original Message----- > From: Confocal Microscopy List [mailto:[hidden email]] On Behalf Of Jeremy Adler > Sent: Thursday, May 16, 2013 3:28 AM > To: [hidden email] > Subject: Re: Tetracycline to bone augmentation > > ***** > To join, leave or search the confocal microscopy listserv, go to: > http://lists.umn.edu/cgi-bin/wa?A0=confocalmicroscopy > ***** > > tetracycline fluoresces > > > Quoting Javier Adur <[hidden email]>: > >> ***** >> To join, leave or search the confocal microscopy listserv, go to: >> http://lists.umn.edu/cgi-bin/wa?A0=confocalmicroscopy >> ***** >> >> Dear list, >> We want to evaluate the bone augmentation in rabbit tibia using >> Tetracycline or similar. >> Does anyone know a protocol of inmunohistochemistry o reference >> literature about it. >> Thanks in advance. >> Javier >> >> >> >> >> >> >> >> >> Dr. Javier F. Adur >> >> Docente/Investigador >> - Facultad de Ingeniería - UNER - Argentina >> >> Laboratorio de >> Microscopia Aplicada a Estudios Celulares y Moleculares >> >> Cátedra Radiaciones >> No Ionizantes >> >> > > > > Jeremy Adler > IGP > Rudbeckslaboratoriet > Daghammersköljdsväg 20 > 751 85 Uppsala > Sweden > > 0046 (0)18 471 4607 |
Doube, Michael |
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To join, leave or search the confocal microscopy listserv, go to: http://lists.umn.edu/cgi-bin/wa?A0=confocalmicroscopy ***** > Without a doubt you still need sectioning to measure bone deposition > by tetracycline fluorescence. Sectioning, or imaging a polished or diamond ultramilled surface of an arbitrarily thick block of embedded tissue - which is where confocal becomes especially useful. Michael [RVC Logo - link to RVC Website]<http://www.rvc.ac.uk> [Twitter icon - link to RVC (Official) Twitter] <http://twitter.com/RoyalVetCollege> [Facebook icon - link to RVC (Official) Facebook] <http://www.facebook.com/theRVC> [YouTube icon - link to RVC YouTube] <http://www.youtube.com/user/RoyalVetsLondon?feature=mhee> [Pinterest icon - link to RVC Pinterest] <http://pinterest.com/royalvetcollege/> This message, together with any attachments, is intended for the stated addressee(s) only and may contain privileged or confidential information. Any views or opinions presented are solely those of the author and do not necessarily represent those of the Royal Veterinary College (RVC). If you are not the intended recipient, please notify the sender and be advised that you have received this message in error and that any use, dissemination, forwarding, printing, or copying is strictly prohibited. Unless stated expressly in this email, this email does not create, form part of, or vary any contractual or unilateral obligation. Email communication cannot be guaranteed to be secure or error free as information could be intercepted, corrupted, amended, lost, destroyed, incomplete or contain viruses. Therefore, we do not accept liability for any such matters or their consequences. Communication with us by email will be taken as acceptance of the risks inherent in doing so. |
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