Effects of Nutritional Deficiency of Boron on the Bones of the Appendicular Skeleton of Mice.

Autor: Gorustovich AA; Interdisciplinary Materials Group-IESIING-UCASAL, INTECIN UBA-CONICET, A4400EDD, Salta, Argentina. agorustovich@conicet.gov.ar., Nielsen FH; Research Nutritionist Consultant, Grand Forks, ND, USA.
Jazyk: angličtina
Zdroj: Biological trace element research [Biol Trace Elem Res] 2019 Mar; Vol. 188 (1), pp. 221-229. Date of Electronic Publication: 2018 Sep 04.
DOI: 10.1007/s12011-018-1499-3
Abstrakt: Scientific evidence has shown the nutritional importance of boron (B) in the remodeling and repair of cancellous bone tissue. However, the effects of the nutritional deficiency of B on the cortical bone tissue of the appendicular skeleton have not yet been described. Thus, a study was performed to histomorphometrically evaluate the density of osteocyte lacunae of cortical bone of mouse femora under conditions of nutritional deficiency of B and to analyze the effects of the deficiency on the biomechanical properties of mouse tibiae. Weaning, 21-day-old male Swiss mice were assigned to the following two groups: controls (B+; n = 10) and experimental (B-; n = 10). Control mice were fed a basal diet containing 3 mg B/kg, whereas experimental mice were fed a B-deficient diet containing 0.07 mg B/kg for 9 weeks. The histological and histomorphometric evaluations of the mice fed a B-deficient diet showed a decrease in the density of osteocyte lacunae in the femoral cortical bone tissue and the evaluation of biomechanical properties showed lower bone rigidity in the tibia.
Databáze: MEDLINE