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( Daisuke Takamura ),( Kentaro Iwata ),( Tatsuya Sueyoshi ),( Tadashi Yasuda ),( Hideki Moriyama ) 대한슬관절학회 2021 대한슬관절학회지 Vol.33 No.-
Background: Physical activity is associated with physical function; however, the relationship between early physical activity after total knee arthroplasty (TKA) and postoperative physical function remains unclear. The purpose of this study was to evaluate the association of early physical activity after TKA with postoperative physical function. Methods: Timed Up and Go test (TUG) of 47 patients was assessed preoperatively and at 10 days, 3 months, and 6 months postoperatively. Physical activity from the second to the ninth day after TKA was measured with accelerometer, and the correlation with pre- and postoperative physical function was evaluated . A multiple linear regression was used to predict TUG at 6 months after TKA. Results: Postoperative physical activity correlated with preoperative TUG (ρ = -0.485, p < 0.001), TUG at 10 days (ρ = -0.675, p < 0.001), 3 months (ρ = -0.441, p < 0.01), and 6 months (ρ = -0.368, p < 0.05) after surgery. Multiple linear regression indicated that only the preoperative TUG was associated with TUG at 6 months. Postoperative physical activity was not an independent factor predicting TUG at 6 months after TKA. Conclusion: Our study demonstrated that patients with better physical function have higher physical activity in the early postoperative period, whereas it does not affect physical function at 6 months after TKA. In the early postoperative period, increasing physical activity may not always be necessary to improve postoperative physical function. We also confirmed that preoperative physical function affects postoperative physical function. These findings may be beneficial in improving rehabilitation programs in the early postoperative period.
Yuji Maehata,Yutaka Nagata,Tomohiko Moriyama,Yuichi Matsuno,Atsushi Hirano,Junji Umeno,Takehiro Torisu,Tatsuya Manabe,Takanari Kitazono,Motohiro Esaki 대한장연구학회 2019 Intestinal Research Vol.17 No.3
Background/Aims: It remains uncertain which patients with stricturing-type Crohn’s disease (CD) require early small bowel surgery after the initial diagnosis. We aimed to clarify clinical characteristics associated with the intervention in such condition of CD. Methods: We retrospectively evaluated the clinical course of 53 patients with CD and small bowel strictures who were initially treated with medications after the initial diagnosis. We investigated possible associations between small bowel surgery and the following: clinical factors and radiologic findings at initial diagnosis and the types of medications administered during follow-up. Results: Twenty-eight patients (53%) required small bowel resection during a median follow-up period of 5.0 years (range, 0.5–14.3 years). The cumulative incidence rates of small bowel surgery at 2, 5, and 10 years were 26.4%, 41.0%, and 63.2%, respectively. Univariate analysis indicated that obstructive symptoms (P=0.036), long-segment stricture (P<0.0001), and prestenotic dilation (P<0.0001) on radiography were associated with small bowel surgery, and immunomodulatory (P=0.037) and biological therapy (P=0.008) were significant factors during follow-up. Multivariate analysis revealed that long-segment stricture (hazard ratio [HR], 4.25; 95% confidence interval [CI], 1.78–10.53; P=0.001) and prestenotic dilation (HR, 3.41; 95% CI, 1.24–9.62; P=0.018) on radiography showed a positive correlation with small bowel surgery, and biological therapy (HR, 0.40; 95% CI, 0.15–0.99; P=0.048) showed a negative correlation. Conclusions: CD patients with long-segment stricture and prestenotic dilation on radiography seem to be at a higher risk of needing small bowel surgery. For such patients, early surgical intervention might be appropriate, even at initial diagnosis.
Isolation and characterization of acidsoluble bluefin tuna (Thunnus orientalis) skin collagen
Teruyoshi Tanaka,Kenji Takahashi,Kazufumi Tsubaki,Maika Hirata,Keiko Yamamoto,Amal Biswas,Tatsuya Moriyama,Yukio Kawamura 한국수산과학회 2018 Fisheries and Aquatic Sciences Vol.21 No.2
In this study, we isolated and characterized the acid-soluble skin collagen of Pacific bluefin tuna (PBT, Thunnus orientalis). The PBT skin collagen was composed of two α chains (α1 and α2) and one β chain. The denaturation temperature of PBT collagen was low although it was rich in proline and hydroxyproline. The primary structure of PBT skin collagen was almost identical to that of calf and salmon skin collagen; however, it differed with respect to the epitope recognition of the antibody against salmon type I collagen. These results suggest that the primary structure of skin collagen was highly conserved among animal species, although partial sequences that included the epitope structure differed among collagens.
Isolation and characterization of acid-soluble bluefin tuna (Thunnus orientalis) skin collagen
Tanaka, Teruyoshi,Takahashi, Kenji,Tsubaki, Kazufumi,Hirata, Maika,Yamamoto, Keiko,Biswas, Amal,Moriyama, Tatsuya,Kawamura, Yukio The Korean Society of Fisheries and Aquatic Scienc 2018 Fisheries and Aquatic Sciences Vol.21 No.4
In this study, we isolated and characterized the acid-soluble skin collagen of Pacific bluefin tuna (PBT, Thunnus orientalis). The PBT skin collagen was composed of two ${\alpha}$ chains (${\alpha}1$ and ${\alpha}2$) and one ${\beta}$ chain. The denaturation temperature of PBT collagen was low although it was rich in proline and hydroxyproline. The primary structure of PBT skin collagen was almost identical to that of calf and salmon skin collagen; however, it differed with respect to the epitope recognition of the antibody against salmon type I collagen. These results suggest that the primary structure of skin collagen was highly conserved among animal species, although partial sequences that included the epitope structure differed among collagens.