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96) Here we studied the effect of single-dose intra-articular injection of gm-PBSCs from male donors delivered in hyaluronic acid (HA) on papain-induced OA in the knee joints of female Sprague-Dawley (SD) rats.
* Cell Therapy With G-CSF-Mobilized Stem Cells in a Rat Osteoarthritis Model.
- G-CSF-mobilized peripheral blood stem cells (gm-PBSCs) offer a convenient cell source for treatment of hematopoietic and vascular disorders. Whether gm-PBSCs provide beneficial effects on skeleton diseases, such as osteoarthritis (OA), remains unknown. This study was undertaken to address the hypothesis that gm-PBSCs promote articular regeneration in OA. Here we studied the effect of single-dose intra-articular injection of gm-PBSCs from male donors delivered in hyaluronic acid (HA) on papain-induced OA in the knee joints of female Sprague-Dawley (SD) rats. Contralateral OA knee joints received single-dose HA alone and served as vehicle controls. We evaluated the histologic changes in glycosaminoglycan, type II collagen, type X collagen, modified Mankin score, and cell apoptosis rate in the articular cartilage of rat knees. We demonstrated that gm-PBSCs were mobilized to the peripheral blood via G-CSF infusion for 5 days in SD rats with increasing CD34(+) percentage up to 55-fold. We showed that gm-PBSCs inhibit progression of papain-induced OA via reducing articular surface irregularity, fibrillation, and erosion, preventing cellular necrosis and loss of chondrogenic proteins, such as glycosaminoglycan and type II collagen, at both 3 and 6 weeks after treatment. Moreover, gm-PBSCs reduced modified Mankin scores and cellular apoptosis rates compared with HA alone. Our findings demonstrate that HA plus gm-PBSCs, rather than HA alone, inhibits progression of OA in rats in vivo. Thus, intra-articular injection of gm-PBSCs is a convenient protocol for treating OA with consistent beneficial effects.
=>1.酸っぱい, 2.辛辣な, 3.酸, 4.《俗語》麻薬, LSD
Overview of noun acid
The noun acid has 2 senses (first 1 from tagged texts)
1. (4) acid -- (any of various water-soluble compounds having a sour taste and capable of turning
litmus red and reacting with a base to form a salt)
2. acid, back breaker, battery-acid, dose, dot, Elvis, loony toons, Lucy in the sky with diamonds,
pane, superman, window pane, Zen -- (street name for lysergic acid diethylamide)
Overview of adj acid
The adj acid has 3 senses (first 1 from tagged texts)
1. (1) acerb, acerbic, acid, acrid, bitter, blistering, caustic, sulfurous, sulphurous, virulent,
vitriolic -- (harsh or corrosive in tone; "an acerbic tone piercing otherwise flowery prose"; "a
barrage of acid comments"; "her acrid remarks make her many enemies"; "bitter words"; "blistering
criticism"; "caustic jokes about political assassination, talk-show hosts and medical ethics"; "a
sulfurous denunciation"; "a vitriolic critique")
2. acidic, acid, acidulent, acidulous -- (being sour to the taste)
3. acid -- (having the characteristics of an acid; "an acid reaction")
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