ReferenceID 21

Postprandial effects of almond consumption on human osteoclast precursors--an ex vivo study

Metabolism

Consumption of almonds has been associated with increased bone mineral density, but the direct effects of almonds on bone cells are not known. We determined whether serum obtained following the consumption of a meal cont

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Reference Id
21
Evidence Id
16611
Core Evidence Id
16611
Source Reference Id
38
Herb2 Reference Id
HBREF000100
Subject Paper Key
HERB006236_20947104
Pubmed Id
20947104
Doi
10.1016/j.metabol.2010.08.012
Paper Title
Postprandial effects of almond consumption on human osteoclast precursors--an ex vivo study
Paper Abstract
Consumption of almonds has been associated with increased bone mineral density, but the direct effects of almonds on bone cells are not known. We determined whether serum obtained following the consumption of a meal containing 60 g of almonds affects human osteoclast formation, function, and gene expression in vitro. Human osteoclast precursors were cultured in medium containing 10% serum obtained from 14 healthy subjects at baseline and 4 hours following the consumption of 3 test meals containing almonds, potatoes, and rice and balanced for macronutrient composition. Osteoclast formation was determined by the number of tartrate-resistant acid phosphatase (TRAP)(+) multinucleated cells, and osteoclast function was assessed by measuring TRAP activity in the culture medium and calcium released from OsteoAssay (Lonza Walkersville, Walkersville, MD, USA) plates. The expression of cathepsin K, receptor activator of nuclear factor kB, and matrix metalloproteinase-9 genes was measured by real-time reverse transcriptase-polymerase chain reaction. Compared with serum obtained at baseline, serum obtained 4 hours following the consumption of the almond meal reduced osteoclast formation by approximately 20%, TRAP activity by approximately 15%, calcium release by approximately 65%, and the expression of cathepsin K, receptor activator of nuclear factor kB, and matrix metalloproteinase-9 by 13% to 23%. No effects were observed with serum obtained from the other test meals. Serum obtained 4 hours following the consumption of an almond meal inhibits osteoclast formation, function, and gene expression in cultured human osteoclast precursors, and provides evidence for a positive effect of almonds on bone health.
Journal
Metabolism
Publish Year
2011
Experiment Subject
human osteoclast precursors
Experiment Type
Cell Experiment
Phenotype Related
Bone Health
Paper Title Cn
Paper Title En
Postprandial effects of almond consumption on human osteoclast precursors--an ex vivo study
Bilingual Status
semi_complete