21st line 2; 199026 St. Petersburg, Russia
Phone/Fax: +7 (812) 328-8640 email: rmo@minsoc.ru
founded in 1817
200th Anniversary Meeting of the Russian Mineralogical Society
Saint Petersburg, Russia
10-13 October 2017
2017minsoc.ru
http://www.minsoc.ru/2017/
Русский Site map
Conferences & Meetings 200th Anniversary Meeting of the Russian Mineralogical Society
print print version
 

Locations of visitors to this page
News
MinSoc Info
Membership
Branches
Commissions
Awards
Conferences & Meetings
Zapiski RMO (Journal)
e-Library
EMU
IMA
Links
Guestbook
Help
re-registered: 931
yesterday: 158
week:
users: 2733
active: 2309
organizations: 739
departments: 434
useful links: 66
announced: 44
registration open: 1
total: 2006
PDF: 1985
issues: 545
articles: 9588
PDF of abstracts: 2156
fulltext articles: 3830
records: 43
fulltext PDF: 9
Presentations
| search |
Human calcifications: biotropism, ontogeny and morphostructure

RMS-DPI code:  2017-1-304-0
Scientific session:  7. Mineralogy in study and conservation of biosphere.
Author listing:  Evdokimov F.А., Yakushina O.A., Bystrov I.G., Iospa A.V., Gamataev I.I.
Principal author:  Yakushina Olga Aleksandrovna
Language:  Russian
Abstract - Summary 
(short description):
Biogeneous mineral concrements of various localization as stones in human body are alien pathogenic formations that cause a set of dangerous diseases. Among these biogeneous formations are calcifications, bilious and salivary stones. Still there is no consensus on the issue of their origin, but many medical workers connect them with an infectious etiology.
Biogeneous mineral concrements of origin have been for their composition, structure and morphology. Among them are calcifications, other mineral formations. We believe mineralogical base of crystal growth theory as biogeneous stones arise and grow in human body.
We studied on mineralogical approach different calcifications, bilious and salivary stones by optical microscopy, X-ray Computed microTomography X-ray powder diffraction, XPD. X-ray CT benefit is obvious, the method is non-destructive and visualize internal of any object.
Actually mineral concrements display heterogeneous phase composition and morphology, irregular forms twisting edges, and usually have organic tissues in central part. Calcifications consist of 5-6 phases, two belong to an organic fabric (possibly proteins and lipids), other 3-4 mineral phases are wivewnit, hydroxlapatite, hydroxlcarbonateapatite and calcite of different density. The formed and young arising calcifications 30 microns size have been compared. Both organogeneous calcifications have considerable similarity of phase composition, but the young one also contained less than 0,15 wt.% slightly crystallized hydroxlapatite. Thus the young calcification has already initiated the development of atherosclerotic process. XCT tomograms of the salivary stone display morphology similarity to the one of mineral substance, for example ferromanganese nodules or pearls, but differ in phase composition. XPD of various salivary stones detected composition similar to calcifications, but gallastones were of different phase composition.
Biogeneous concrements calcifications, salivary stones and gallstones differ in phase composition and morphology, mechanisms of their nucleation and grows. The used mineralogical approach is alike histology in medical and biological studies, but may better promote disease courses explanation, revealing mechanisms of the calcification process development, being aimed at the human health protection.

biolithos, calcifications, gallstones, salivary stones, testing methods, Х-ray СТ, morphostructure, composition, morphology
 
RMS-DPI code:  2017-1-304-0
Pages:  369-371
File of proceedings 
(PDF): 
 192 K
Status:  printed
Recieved:  15/06/2017
Accepted:  17/09/2017
Published on-line:  07/12/2017
Permanent address of publication:  http://www.minsoc.ru/2017-1-304-0/
Contact author(s):  Yakushina, Olga Aleksandrovna
 
registration | forgot password?
 
about registration
RMS distribution list service
Subscribe
NEW !!! RMS 200th Anniversary Meeting 2017
RMS for You:  PDF (37k)
RMS Directory
List of organizations

"Zapiski RMO" online
New Books

e-Prints:
RMS Annual Session and Fedorov Session 2012
General Meeting and Fedorov Session 2010
Minerals as Advanced Materials II
Annual Session 2009
Annual Session 2008
Fedorov Session 2008
TBG-XIII & APIFIS-IV
Crystallogenesis&Mineralogy'07
Annual Session 2007
Annual Session 2006
Fedorov Session 2006

Competitions:
2009
2008
2007
      
 
Яндекс.Метрика