Osteolysis in reindeer antlers; Sexual and seasonal variations

Bélanger, Leonard F.; Choquette, L. P. E.; Cousineau, Julien

doi:10.1007/bf02008073

Cited by 25 publications

(15 citation statements)

References 10 publications

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“…In the past, it was suggested that osteocytes play an active role in the destruction of mineralized bone matrix [39] and that they are related to bone-resorbing osteoclasts [40].…”

Section: The Role Of Osteocytes In Bonementioning

confidence: 99%

The biology of osteocytes

Kogianni¹,

Noble

2007

Curr Osteoporos Rep

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Osteocytes, the most abundant cell type in bone, remain the least characterized. Several theories have been proposed regarding their function, including osteolysis, sensing the strains produced in response to mechanical loading of bones, and producing signals that affect the function of osteoblasts and osteoclasts and hence, bone turnover. This review also discusses the role of osteocyte apoptosis in targeted bone remodeling and proposes that the occurrence of osteocyte apoptosis is consistent with the description of apoptosis as an essential homeostatic mechanism for the healthy maintenance of tissues.

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“…In the past, it was suggested that osteocytes play an active role in the destruction of mineralized bone matrix [39] and that they are related to bone-resorbing osteoclasts [40].…”

Section: The Role Of Osteocytes In Bonementioning

confidence: 99%

The biology of osteocytes

Kogianni¹,

Noble

2007

Curr Osteoporos Rep

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“…3 ) . Sections of approximately 100 μ obtained from epoxy-resin blocks have been used in our laboratory Bélanger et al, 1967a). Toluidine blue (Bélanger and Hartnett, 1960) is a good stain for this purpose.…”

Section: A Histology Of Osteocytic Resorptionmentioning

confidence: 99%

Osteocytic Resorption

Bélanger¹

1971

Development and Growth

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“…That is incidentally a time of deprived mineral stores (after parturition) and great mineral needs (lactation) (see Hyvärinen et al 1977 : 310). Thus, Wika's (1982) suggestion is functionnaly equivalent to that of Belanger et al (1967) ; but here it is through their behaviour, i.e. osteophagia, that female caribou use their antlers as a mineral bank, not through a direct physiological resorption of still attached antlers.…”

Section: Resultsmentioning

confidence: 92%

“…Even though there is some reduced blood supply to the antler through the pedicle after velvet peeling (Hyväri-nen et al 1977 : 306), thus some mineralization for one or two weeks after peeling (Brown et al 1978 : Tables 1 and 2), hard antlers are best seen as dead bones (Goss 1970(Goss : 235, 1983Chapman 1975 : 142). Thus, the suggestion made by Belanger et al (1967) that female caribou's antlers could act as a « calcium bank during the winter » (pregnant females retain their antlers until after parturition : Espmark 1971) is intriguing but doubtful. It remains to be seen whether any substantial amount of minerals can be recuperated directly in such a way from hard antlers.…”

Section: Introductionmentioning

confidence: 95%

Antler eating and antler growth in wild Axis deer

Barrette¹

1985

Mammalia

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During 20 months of field work in Wilpattu National Park in Sri Lanka (8°30'N, 80° 1 ) I recorded 102 instances of osteophagia by Axis deer (Axis axis). I found no seasonal variation in the occurence of osteophagia. All age-sex classes ate bones and antlers, but among adult males, velvet antlered ones did it significantly more often than hard antlered males. Also, among velvet males, the ones with fully grown antlers, i.e. antlers in the process of mineralization, ate bones or antlers significantly more often than other velvet males. Since antler growth is not seasonal in Wilpattu these results cannot be explained by a seasonal variation in the mineral content of the diet. This is therefore a clear demonstration that osteophagia is done in response to a greater mineral need during antler growth and mineralization.Resume. -Au cours de 20 mois de terrain dans le Pare National de Wilpattu au Sri Lanka (8°30'N, 80° ), j'ai observe des cerfs axis (Axis axis) manger des os ou des bois de Cervides ä 102 occasions. Je n'ai decele aucune variation saisonniere de ce comportement. Par contre, bien que toutes les classes d'äge des deux sexes pratiquent I'osteophagie, parmi les males adultes, ceux dont les bois sont en croissance le font significativement plus que ceux dont les bois sont durs. De meme parmi les males en velours, ceux dont les bois ont atteint leur pleine longueur, c'est-a-dire ceux dont les bois sont en pleine periode de mineralisation, mangent des os et des bois ä une frequence significativement plus elevee que les autres males en velours. La croissance des bois n'etant pas saisonniere ä Wilpattu, les resultats presentes ici ne sont pas influences par l'effet des variations saisonnieres de Papport des mineraux fournis par la nourriture, et ils demontrent done clairement que Posteophagie est veritablement une reponse aux besoins accrus de mineraux provoques par la croissance et la mineralisation des bois.

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Osteolysis in reindeer antlers; Sexual and seasonal variations

Cited by 25 publications

References 10 publications

The biology of osteocytes

The biology of osteocytes

Osteocytic Resorption

Antler eating and antler growth in wild Axis deer

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