Age changes in human bone: an overview

Age changes in stiffness, strength, toughness and collagen properties of human bone

Journal of Biomechanics ◽

10.1016/s0021-9290(98)80246-7 ◽

1998 ◽

Vol 31 ◽

pp. 122 ◽

Cited By ~ 1

Author(s):

P. Zioupos ◽

J.D. Currey ◽

A. Hamer

Keyword(s):

Human Bone ◽

Age Changes

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Age Changes in Human Bone: A Microradiographic and Histological Study of Subperiosteal and Periosteal Calcifications

Gerontology ◽

10.1159/000212965 ◽

1988 ◽

Vol 34 (5-6) ◽

pp. 264-276 ◽

Cited By ~ 15

Author(s):

G. Zagba-Mongalima ◽

M. Goret-Nicaise ◽

A. Dhem

Keyword(s):

Histological Study ◽

Human Bone ◽

Age Changes

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Age changes in density distribution in human bone shown using image analysis of fast electrons in the SEM

Bone ◽

10.1016/8756-3282(87)90156-6 ◽

1987 ◽

Vol 8 (1) ◽

pp. 52-53 ◽

Cited By ~ 1

Author(s):

S.A. Reid ◽

A. Boyde

Keyword(s):

Image Analysis ◽

Density Distribution ◽

Human Bone ◽

Age Changes ◽

Fast Electrons

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The ultrastructure of acinar cells in the external orbital gland of young and old male rats

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100082248 ◽

1978 ◽

Vol 36 (2) ◽

pp. 276-277

Author(s):

R. Carriere

Keyword(s):

Young Adulthood ◽

Acinar Cells ◽

Cell Number ◽

Male Rats ◽

Polyploid Cell ◽

Secretory Cells ◽

Age Changes ◽

Albino Rat ◽

Golgi Membranes ◽

Diploid Cells

The external orbital gland of the albino rat exhibits both sexual dimorphism and histological age changes. In males, many cells attain a remarkable degree of polyploidy and an increase of polyploid cell number constitutes the major age change until young adulthood. The acini of young adults have a small lumen and are composed of tall serous cells. Subsequently, many acini acquire a larger lumen with an irregular outline while numerous vacuoles accumulate throughout the secretory cells. At the same time, vesicular acini with a large lumen surrounded by pale-staining low cuboidal diploid cells begin to appear and their number increases throughout old age. The fine structure of external orbital glands from both sexes has been explored and in considering acinar cells from males, emphasis was given to the form of the Golgi membranes and to nuclear infoldings of cytoplasmic constituents.

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