Talk:Osteon

Osteons as biographies

Here is some stuff on "history" via osteons: MICROANALYTICAL ARCHAEOMETRY IN PALAEOANTHROPOLOGY In this way, osteons, osteocyte lacunae and bone void filling minerals can be studied, ... diet, developmental stress, growth rate and taphonomic history. ... http://www.archaeometry.gr/symposium2003/pages_en/abstracts/papers/anthro/anthro1.htm - 8k Cached Hominid cranial bone structure: a histological study of Omo 1 ... ... such as the reverse type II osteons, the multicanalled osteons, ... including such factors as growth rate, developmental stress, and diet. ... http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&list_uids=11984792&dopt=Abstract AAPA 73rd Annual Meeting Abstracts: Search Results. Testing a theory explaining the adaptive value of secondary osteons (haversian ... that there was also dietary stress among the people living at Malari. ... http://www.anth.ucsb.edu/dbman/db.cgi?db=schedule2004&uid=default&view_records=1&ID=*&nh=23 - 67k Cached AAPA 73rd Annual Meeting Abstracts: Search Results. Effect of psychogenic stress on ovarian cycle dynamics in the baboon. ... and 50% of them showed type II & double zonal secondary osteons. ... http://www.anth.ucsb.edu/dbman/db.cgi?db=schedule2004&uid=default&view_records=1&ID=*&nh=17 - 65k Cached Electronic Textbook ... decreased size of osteons, and widened marrow and Haversian spaces. ... It is caused by Vitamin D deficiency, such as from deficient diet, malabsorption ...

http://www.anth.ucsb.edu/dbman/db.cgi?db=schedule2004&uid=default&view_records=1&ID=*&nh=20 (locomotion) http://www3.interscience.wiley.com/cgi-bin/abstract/107561161/ABSTRACT Relationships of loading history and structural and material characteristics of bone: Development of the mule deer calcaneus

Review: Application of osteology to forensic medicine (sex, age, ethnicity) http://www3.interscience.wiley.com/cgi-bin/abstract/94518562/ABSTRACT

Fractures in greyhounds reflected in osteons: http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&list_uids=10574577&dopt=Citation

Paget's disease: http://www.pathology.vcu.edu/education/musculo/lab2g.html Skeletal fluorosis: http://www.fluoridation.com/skeletal.htm Admittedly, differentiating diseases can be tricky, since this is often negelected by researchers or doctors and massive damage is massive damage. Still, this is history.

We conclude that it is possible to observe seasonality of diet within single osteons using the SIMS. Similar variations in O-18/O-16 and D/H should be observable in individuals from sites where seasonal changes in isotopic composition of drinking water occur. Applications to study the rates of bone remodeling are also being investigated. (Schwarcz et al. http://www.anth.ucsb.edu/dbman/db.cgi?db=schedule2004&uid=default&view_records=1&ID=*&nh=20)

Even: Beer in Antiquity Project Michael Homan, Ph.D.,Theology, Xavier University of Louisiana Wayne Harris, Ph.D., School of Pharmacy, Xavier University of Louisiana

This project will study the importance, uses, and benefits of beer production in the ancient Near East. Tetracycline labeling of bone has been associated with beer consumption in archaeological collections, a series of controlled experiments will be conducted to study antibiotic production on fermentation and its incorporation in forming osteons. It has been theorized that tetracycline is a by-product of Streptomycete metabolism, associated with moldy grains. Specific projects will include the study levels of tetracycline in soils from the region, brewing beer according to ancient methods to see if tetracycline survives the short fermentation process indicated in texts, and residue analysis of pottery associated with beer production/consumption. http://www.nd.edu/~sheridan/HHMIprojects.html Cook, Jennifer A. BS, 1998 Faculty Advisor: Armelagos Title: Tetracycline Labeling in an Ancient Nubian X-Group (24-I-3) Population

Abstract: The prevalence of tetracycline labeled osteons was investigated in 25 individuals from an ancient Sudanese Nubian X-Group cemetery (24-I-3) dated from 350-550 CE. Femoral thin sections from below the lesser trochanger were hand ground and viewed under fluorescence microscopy at 490 nm. The presence of tetracycline is indicated by bright yellow-green fluorescence. Each thin section was analyzed using a modified Frost's (1996) "Triple-Surface-System," which yielded 12 fields from each individual. In the study a distinction was made between intact osteons totally labeled with tetracycline and osteons with only hyperdensity innerlamellae (HDI) bodies labeled. Of the over 7,369 haversian systems sampled, 5.6% of the intact osteons were completely labeled. The population also showed an average rate of 9.1% of total bone labeled. The prevalence of labeling was significantly lower than that reported from another X-Group site (NAX) from this same region (Collins 1997). The bones of individuals of all ages show at least some in vivo tetracycline labeling. Differences between populations reflect differences in diet. Tetracycline, used today as a common anti-biotic, was incorporated in the diet of the ancient Nubians through the fermenting of grain. http://www.anthropology.emory.edu/UNDERGRAD/Honors%20Theses.htm

Missing scale bars

The images are lacking scale bars, and the article needs to give a typical diameter of an osteon. Various pages I can find on Google suggest typical diameters in the range 150–200µm, but I haven't found a definitive source.

Please, someone with a good source should add some mention of typical sizes to this article, which currently lacks any mention of lengthscales.

—Steven G. Johnson (talk) 17:25, 23 June 2009 (UTC)

I found a Britannica reference and added it. —Steven G. Johnson (talk) 17:29, 23 June 2009 (UTC)

light micrograph?

Is this really a micrograph? It looks suspiciously like a drawing to me. Kdammers (talk) 11:49, 10 July 2009 (UTC)