Margaret Tzaphlidou

Summary

Affiliation: University of Ioannina
Country: Greece

Publications

  1. ncbi Diameter distributions of collagenous tissues in relation to sex. A quantitative ultrastructural study
    M Tzaphlidou
    Laboratory of Medical Physics, Medical School, University of Ioannina, P O Box 1186, 45110, Ioannina, Greece
    Micron 32:333-6. 2001
  2. ncbi Preliminary estimates of the calcium/phosphorus ratio at different cortical bone sites using synchrotron microCT
    M Tzaphlidou
    Laboratory of Medical Physics, Medical School, University of Ioannina, 45110 Ioannina, Greece
    Phys Med Biol 51:1849-55. 2006
  3. ncbi The role of collagen in bone structure: an image processing approach
    Margaret Tzaphlidou
    Laboratory of Medical Physics, Medical School, Ioannina University, P O Box 1186, 45110 Ioannina, Greece
    Micron 36:593-601. 2005
  4. ncbi Bone calcium, phosphorus detection by Auger electron spectroscopy
    Margaret Tzaphlidou
    Laboratory of Medical Physics, Medical School, Ioannina University, P O Box 1186, 45110 Ioannina, Greece
    Micron 36:706-9. 2005
  5. ncbi Collagen fibril diameter in relation to bone site. a quantitative ultrastructural study
    Margaret Tzaphlidou
    Laboratory of Medical Physics, Medical School, Ioannina University, P O Box 1186, 45110 Ioannina, Greece
    Micron 36:703-5. 2005
  6. ncbi High resolution Ca/P maps of bone architecture in 3D synchrotron radiation microtomographic images
    M Tzaphlidou
    Laboratory of Medical Physics, Medical School, University of Ioannina, PO Box 1186, 45110 Ioannina, Greece
    Appl Radiat Isot 62:569-75. 2005
  7. ncbi Development of a reliable and low-cost system for the study of EMF biological effects
    M Tzaphlidou
    Laboratory of Medical Physics, Medical School, University of Ioannina, 45110 Ioannina, Greece
    ScientificWorldJournal 4:100-4. 2004
  8. ncbi The effects of 910-MHz electromagnetic field on rat cranial arachnoid and dura mater collagen. The axial periodicity of collagen fibrils
    Margaret Tzaphlidou
    Laboratory of Medical Physics, Medical School, Ioannina University, 45110 Ioannina, Greece
    ScientificWorldJournal 4:70-4. 2004
  9. ncbi Collagenous tissues upon lithium treatment: a quantitative ultrastructural study
    Margaret Tzaphlidou
    Laboratory of Medical Physics, Medical School, Ioannina University, 45110 Ioannina, Greece
    ScientificWorldJournal 4:605-21. 2004
  10. ncbi Aged skin: detection of alterations of major collagen types ratio by image processing of electron-optical data
    Margaret Tzaphlidou
    Laboratory of Medical Physics, Medical School, University of Ioannina, P O Box 1186, Ioannina 45110, Greece
    Micron 35:221-5. 2004

Collaborators

Detail Information

Publications22

  1. ncbi Diameter distributions of collagenous tissues in relation to sex. A quantitative ultrastructural study
    M Tzaphlidou
    Laboratory of Medical Physics, Medical School, University of Ioannina, P O Box 1186, 45110, Ioannina, Greece
    Micron 32:333-6. 2001
    ..In addition, the female rabbit collagen fibrils had a marked decrease in the mean diameter compared to male, in all the tissues examined (skin, liver, and bone). These data suggest that the collagen fibril diameter is related to sex...
  2. ncbi Preliminary estimates of the calcium/phosphorus ratio at different cortical bone sites using synchrotron microCT
    M Tzaphlidou
    Laboratory of Medical Physics, Medical School, University of Ioannina, 45110 Ioannina, Greece
    Phys Med Biol 51:1849-55. 2006
    ..1 < p < or = 0.9) while those between different bone sites are highly significant (p < 10(-3)) demonstrating a dependence upon life style and bone use...
  3. ncbi The role of collagen in bone structure: an image processing approach
    Margaret Tzaphlidou
    Laboratory of Medical Physics, Medical School, Ioannina University, P O Box 1186, 45110 Ioannina, Greece
    Micron 36:593-601. 2005
    ..Computer analyses of normal fibril positive staining patterns are presented in order to provide a basis for comparing such patterns with pathological ones...
  4. ncbi Bone calcium, phosphorus detection by Auger electron spectroscopy
    Margaret Tzaphlidou
    Laboratory of Medical Physics, Medical School, Ioannina University, P O Box 1186, 45110 Ioannina, Greece
    Micron 36:706-9. 2005
    ..Experimental conditions were found whereby the samples could be analyzed without conductive coatings. The results of this preliminary investigation demonstrate that Auger electron spectroscopy can be used to study bone mineral elements...
  5. ncbi Collagen fibril diameter in relation to bone site. a quantitative ultrastructural study
    Margaret Tzaphlidou
    Laboratory of Medical Physics, Medical School, Ioannina University, P O Box 1186, 45110 Ioannina, Greece
    Micron 36:703-5. 2005
    ..Statistically significant differences (0.001<p<0.04) in mean fibril diameter values between different bone sites were detected demonstrating a dependence upon bone use...
  6. ncbi High resolution Ca/P maps of bone architecture in 3D synchrotron radiation microtomographic images
    M Tzaphlidou
    Laboratory of Medical Physics, Medical School, University of Ioannina, PO Box 1186, 45110 Ioannina, Greece
    Appl Radiat Isot 62:569-75. 2005
    ..001). Differences between estimates made at 20 and 28 keV are not significant (p>0.5). An important aspect is the ability to map the spatial distribution of the Ca/P ratio...
  7. ncbi Development of a reliable and low-cost system for the study of EMF biological effects
    M Tzaphlidou
    Laboratory of Medical Physics, Medical School, University of Ioannina, 45110 Ioannina, Greece
    ScientificWorldJournal 4:100-4. 2004
  8. ncbi The effects of 910-MHz electromagnetic field on rat cranial arachnoid and dura mater collagen. The axial periodicity of collagen fibrils
    Margaret Tzaphlidou
    Laboratory of Medical Physics, Medical School, Ioannina University, 45110 Ioannina, Greece
    ScientificWorldJournal 4:70-4. 2004
    ..Such measurements were compared with those from sham-exposed animals. These measurements reveal that on exposure, the intermolecular interactions during collagen fibril assembly are affected...
  9. ncbi Collagenous tissues upon lithium treatment: a quantitative ultrastructural study
    Margaret Tzaphlidou
    Laboratory of Medical Physics, Medical School, Ioannina University, 45110 Ioannina, Greece
    ScientificWorldJournal 4:605-21. 2004
    ..Computer analysis shows no differences in charged amino acid composition between lithium-treated and -untreated samples. Under the present experimental conditions, lithium can induce permanent structural collagen alterations...
  10. ncbi Aged skin: detection of alterations of major collagen types ratio by image processing of electron-optical data
    Margaret Tzaphlidou
    Laboratory of Medical Physics, Medical School, University of Ioannina, P O Box 1186, Ioannina 45110, Greece
    Micron 35:221-5. 2004
    ..In particular, they detect alterations on the ratio of major collagen types in skin upon age...
  11. ncbi The role of collagen and elastin in aged skin: an image processing approach
    Margaret Tzaphlidou
    Laboratory of Medical Physics, Medical School, Ioannina University, P.O. Box 1186, 45110 Ioannina, Greece
    Micron 35:173-7. 2004
  12. ncbi Measurement of the axial periodicity of collagen fibrils using an image processing method
    M Tzaphlidou
    Laboratory of Medical Physics, Medical School, University of Ioannina, P O Box 1186, 45110, Ioannina, Greece
    Micron 32:337-9. 2001
    ..The method gives information at a level of 2-3nm...
  13. ncbi Biological effects of radiation: role of electron microscopy
    M Tzaphlidou
    Laboratory of Medical Physics, Medical School, University of Ioannina, 45110 Ioannina, Greece
    Micron 33:115. 2002
  14. ncbi Collagen as a model for the study of radiation induced side effects: use of image processing
    M Tzaphlidou
    Laboratory of Medical Physics, Medical School, Ioannina University, PO Box 1186, 45110 Ioannina, Greece
    Micron 33:117-20. 2002
    ....
  15. ncbi Neutron activation analysis of calcium/phosphorus ratio in rib bone of healthy humans
    Margaret Tzaphlidou
    Laboratory of Medical Physics, Medical School, Ioannina University, PO Box 1186, 45110, Ioannina, Greece
    Appl Radiat Isot 57:779-83. 2002
    ..The mean value (M+/-SD) for the investigated parameter for the whole group studied, 2.33+/-0.34, was within a very wide range of published data and close to the median value...
  16. ncbi Collagen fibril diameter in relation to bone site and to calcium/phosphorus ratio
    Panagiotis Berillis
    Laboratory of Medical Physics, Medical School, Ioannina University, P.O. Box 1186, 45110 Ioannina, Greece
    ScientificWorldJournal 6:1109-13. 2006
    ..Collagen fibril diameter and Ca/P ratio can both serve as indexes of bone quality...
  17. ncbi Skeletal calcium/phosphorus ratio measuring techniques and results. I. Microscopy and microtomography
    Vassilios Kyriazis
    Department of Materials Science and Technology, University of Ioannina, 45110 Ioannina, Greece
    ScientificWorldJournal 4:1027-34. 2004
    ..The authors argue that the choice of the best technique relies on its cost ad ease of applicability, its reliability, and precision...
  18. ncbi Calcium, phosphorus, calcium-phosphorus ratio in rib bone of healthy humans
    Margaret Tzaphlidou
    Laboratory of Medical Physics, Medical School, Ioannina University, 45110 Ioannina, Greece
    Biol Trace Elem Res 93:63-74. 2003
    ..An indication is that the specificity of the Ca/P ratio improves upon that for Ca and P concentrations and may be more reliable in the diagnosis of bone disorders...
  19. ncbi Spectroscopic assessment of normal cortical bone: differences in relation to bone site and sex
    Nikolaos Kourkoumelis
    Department of Medical Physics, Medical School, University of Ioannina, Greece
    ScientificWorldJournal 10:402-12. 2010
    ..Statistically significant differences were detected for the nonapatitic environments of acid phosphate and carbonate content. The mean values for the Ca/P ratio point to an increasing trend from tibia to forearm, and to femoral sections...
  20. ncbi Eye safety related to near infrared radiation exposure to biometric devices
    Nikolaos Kourkoumelis
    Department of Medical Physics, Medical School, University of Ioannina, Ioannina, Greece
    ScientificWorldJournal 11:520-8. 2011
    ..The purpose of this study is to explore the biological effects arising from exposing the eye to near infrared radiation with reference to international legislation...
  21. ncbi Determination of calcium, phosphorus, and the calcium/phosphorus ratio in cortical bone from the human femoral neck by neutron activation analysis
    Vladimir Zaichick
    Medical Radiological Research Center, Obninsk, Kaluga Region, Russia
    Appl Radiat Isot 56:781-6. 2002
    ..This means that specificity of Ca/P ratio is better than those of Ca and P concentrations are and may be more reliable for diagnosis of bone disorders...
  22. ncbi Calcium and phosphorus concentrations and the calcium/phosphorus ratio in trabecular bone from the femoral neck of healthy humans as determined by neutron activation analysis
    Vladimir Zaichick
    Department of Nuclear Medicine, Medical Radiological Research Center, 249020 Obninsk, Kaluga Region, Russia
    Appl Radiat Isot 58:623-7. 2003
    ..This suggests that the specificity of the Ca/P ratio is better than that of Ca and P concentrations and may be more reliable for the diagnosis of bone disorders...