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Keywords = Boiogito

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9 pages, 1995 KiB  
Article
Boiogito, a Japanese Traditional Herbal Medicine, Inhibits the Osteoclast Differentiation and Proliferation in the Subchondral Bone of an In Vivo Knee Osteoarthritis Rat Model
by Taro Kimura, Takayuki Okumo, Hideshi Ikemoto, Naoki Adachi, Haruka Takemura, Midori Mochizuki, Kanako Izukashi, Koji Kanzaki and Masataka Sunagawa
Appl. Sci. 2022, 12(22), 11518; https://doi.org/10.3390/app122211518 - 13 Nov 2022
Cited by 2 | Viewed by 8149
Abstract
Boiogito (BO), a Japanese traditional herbal medicine, has been reported to prevent knee osteoarthritis (KOA) development in in vivo studies. In the early stage of KOA, osteoclasts proliferate in the subchondral bone. This study aimed to investigate the preventive effect of BO on [...] Read more.
Boiogito (BO), a Japanese traditional herbal medicine, has been reported to prevent knee osteoarthritis (KOA) development in in vivo studies. In the early stage of KOA, osteoclasts proliferate in the subchondral bone. This study aimed to investigate the preventive effect of BO on osteoclast proliferation, which remains unclear, in a KOA-induced rat model. KOA was induced in 12-week-old male Wistar rats using surgical destabilization of the medial meniscus (DMM). BO was mixed with powdered chow, applying 1%, 3%, and 5% of the total feed, and administered to KOA-induced rats. The rats were divided into 6 groups: control, sham, DMM, DMM + BO 1%, DMM + BO 3%, and DMM + BO 5%. Rotarod tests were performed each week to assess the locomotor function, and the right knees were harvested 28 days after surgery for histological analysis. Oral administration of BO significantly inhibited the decrease in the latency to fall off in the rotarod test, which was aggravated in the DMM group. Furthermore, KOA development was significantly prevented in the BO-administrated groups as assessed by the Osteoarthritis Research Society International score. The number of multinucleated activated osteoclasts in the subchondral bone was decreased in the BO-treated groups, which was increased in the DMM group. Therefore, oral administration of BO may reduce articular cartilage degeneration, osteoclast differentiation and proliferation in the KOA patients. Full article
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11 pages, 2374 KiB  
Article
Analgesic Effect of Boiogito, a Japanese Traditional Kampo Medicine, on Post-Traumatic Knee Osteoarthritis through Inhibition of ERK1/2 Phosphorylation in the Dorsal Horn of the Spinal Cord
by Yusuke Kunieda, Takayuki Okumo, Hideshi Ikemoto, Naoki Adachi, Midori Tanaka, Taro Kimura, Kanako Yusa, Koji Kanzaki and Masataka Sunagawa
Appl. Sci. 2021, 11(18), 8421; https://doi.org/10.3390/app11188421 - 10 Sep 2021
Cited by 3 | Viewed by 6492
Abstract
Boiogito (BO), a Japanese traditional herbal medicine, has been proven to be clinically effective against knee osteoarthritis (KOA)-associated pain. However, the therapeutic mechanism of BO remains unclear. Thus, we investigated the analgesic mechanism of BO using a rat KOA model. KOA was induced [...] Read more.
Boiogito (BO), a Japanese traditional herbal medicine, has been proven to be clinically effective against knee osteoarthritis (KOA)-associated pain. However, the therapeutic mechanism of BO remains unclear. Thus, we investigated the analgesic mechanism of BO using a rat KOA model. KOA was induced by destabilization of the medial meniscus (DMM). Rats were allocated into the following four groups: control, sham, DMM, and DMM + BO groups. Rotarod test was performed to evaluate the pain-related locomotive dysfunction. Expression of phosphorylated extracellular signal-regulated kinase1/2 (pERK1/2) in the spinal dorsal horn was examined using immunofluorescence staining and Western blotting on days 1 and 28 after DMM surgery. A mitogen-activated protein kinase inhibitor, U0126, was intrathecally injected and rotarod test and Western blotting were performed. The rotarod test revealed hampered locomotive function in the DMM group, which was significantly improved upon BO administration. The number of pERK1/2-positive cells was increased in the DMM group, whereas it was significantly decreased in the DMM + BO group. U0126 significantly inhibited ERK1/2 phosphorylation and increased walking time in the rotarod test, suggesting that the DMM-related pain was associated with ERK1/2 phosphorylation in the spinal dorsal horn. In conclusion, BO administration improved the pain-related locomotive dysfunction by suppressing ERK1/2 phosphorylation. Full article
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10 pages, 2602 KiB  
Article
Preventive Effect of the Japanese Traditional Herbal Medicine Boiogito on Posttraumatic Osteoarthritis in Rats
by Jun Oike, Takayuki Okumo, Hideshi Ikemoto, Yusuke Kunieda, Shingo Nakai, Haruka Takemura, Hiroshi Takagi, Koji Kanzaki and Masataka Sunagawa
Medicines 2020, 7(12), 74; https://doi.org/10.3390/medicines7120074 - 4 Dec 2020
Cited by 9 | Viewed by 6365
Abstract
Background: Considering the anti-inflammatory properties of the Japanese traditional Kampo medicine Boiogito (BO), we aimed to investigate the therapeutic effect of BO to prevent the development of knee osteoarthritis (KOA) in rats with surgically induced KOA. Methods: Destabilization of the medial meniscus (DMM) [...] Read more.
Background: Considering the anti-inflammatory properties of the Japanese traditional Kampo medicine Boiogito (BO), we aimed to investigate the therapeutic effect of BO to prevent the development of knee osteoarthritis (KOA) in rats with surgically induced KOA. Methods: Destabilization of the medial meniscus (DMM) was performed to induce osteoarthritis in the right knees of 12-week-old Wistar rats under general anesthesia. The rats were orally administered 3% BO in standard powder chow for 4 weeks after surgery (controls: n = 6; sham group: n = 6; DMM group: n = 5; DMM + BO group: n = 5). During this period, the rotarod test was performed to monitor locomotive function. After 4 weeks, histological assessment was performed on the right knee. Results: Oral administration of BO improved locomotive function in the rotarod test. Walking time on postoperative days 1, 14, or later was significantly longer in the DMM + BO group than in the DMM group. Histologically, the DMM group showed significant progression of KOA, which, in the DMM + BO group, was strongly suppressed, as assessed by the Osteoarthritis Research Society International score. Conclusions: Our results showed that oral administration of BO had a clinically preventive effect on early stage posttraumatic KOA. Full article
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