Oral Administration of Royal Jelly Restores Tear Secretion
Capacity in Rat Blink-Suppressed Dry Eye Model by Modulating Lacrimal Gland
Function
PLOS One, 9/22/2014
Tears are secreted from the lacrimal gland (LG), a
dysfunction in which induces dry eye, resulting in ocular discomfort and visual
impairment. Honey bee products are used as a nutritional source in daily life
and medicine; however, little is known about their effects on dry eye. The aim
of the present study was to investigate the effects of honey bee products on
tear secretion capacity in dry eye. We selected raw honey, propolis, royal
jelly (RJ), pollen, or larva from commercially available honey bee products.
Tear secretion capacity was evaluated following the oral administration of each
honey bee product in a rat blink-suppressed dry eye model. Changes in tear
secretion, LG ATP content, and LG mitochondrial levels were measured. RJ
restored the tear secretion capacity and decrease in LG ATP content and
mitochondrial levels to the largest extent. Royal jelly can be used as a
preventative intervention for dry eye by managing tear secretion capacity in
the LG.
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