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- W2019161673 abstract "Deficiencies in folate lead to increased serum concentrations of homocysteine (Hcy), which is known as hyperhomocysteinemia (HHcy), is associated with bone disorders. Although, Hcy accumulates collagen in bone and contribute to decrease in bone strength. The mechanism of Hcy induced bone loss and remodeling is unclear. Therefore, the present study was aimed to determine the role of folic acid (FA) in genetically HHcy-associated decrease in bone blood flow and remodeling. Wild type (WT) and cystathionine-β-synthase heterozygous (CBS+/-) mice were used in this study and supplemented with or without FA (300 mg/kg, Hcy reducing agent) in drinking water for 6 weeks. The tibial bone blood flow was measured by laser Doppler and ultrasonic flow probe method. The tibial bone density (BD) was assessed by dual energy X-ray absorptiometry. The bone homogenates were analyzed for oxidative stress, NOX-4 as oxidative marker and thioredoxin-1 (Trx-1) as anti-oxidant marker, bone remodeling (MMP-9) and bio-availability of nitric oxide (eNOS/iNOS/NO) by Western blot method. The results suggested that there was decrease in tibial blood flow in CBS+/- mice. The BD was also reduced in CBS+/- mice. There was an increase in NOX-4, iNOS, MMP-9 protein as well as MMP-9 activity in CBS+/- mice and decrease in Trx-1, eNOS protein levels, in part by decreasing NO bio-availability in CBS+/- mice. Interestingly, these effects were ameliorated by FA and suggested that FA supplementation may have therapeutic potential against genetically HHcy induced bone loss." @default.
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- W2019161673 date "2011-04-05" @default.
- W2019161673 modified "2023-09-27" @default.
- W2019161673 title "Homocysteine mediated decrease in bone blood flow and remodeling: Role of folic acid" @default.
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- W2019161673 doi "https://doi.org/10.1002/jor.21415" @default.
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