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Ichida K, Noda H, Maemoto R, Mizusawa Y, Matsuzawa N, Tamaki S, Abe I, Endo Y, Inoue K, Fukui T, Takayama Y, Muto Y, Futsuhara K, Watanabe F, Miyakura Y, Mieno M, Rikiyama T. Contrasting seasonality of the incidence of incisional surgical site infection after general and gastroenterological surgery: an analysis of 8436 patients in a single institute. J Hosp Infect 2024; 151:140-147. [PMID: 38950864 DOI: 10.1016/j.jhin.2024.06.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2024] [Revised: 05/27/2024] [Accepted: 06/05/2024] [Indexed: 07/03/2024]
Abstract
BACKGROUND While seasonality of hospital-acquired infections, including incisional SSI after orthopaedic surgery, is recognized, the seasonality of incisional SSI after general and gastroenterological surgeries remains unclear. AIM To analyse the seasonality and risk factors of incisional SSI after general and gastroenterological surgeries. METHODS This was a retrospective, single-institute, observational study using univariate and multivariate analyses. The evaluated variables included age, sex, surgical approach, surgical urgency, operation time, wound classification, and the American Society of Anesthesiologists physical status (ASA-PS). FINDINGS A total of 8436 patients were enrolled. General surgeries (N = 2241) showed a pronounced SSI incidence in summer (3.9%; odds ratio (OR): 1.87; 95% confidence interval (CI): 1.05-3.27; P = 0.025) compared to other seasons (2.1%). Conversely, gastroenterological surgeries (N = 6195) showed a higher incidence in winter (8.3%; OR: 1.38; 95% CI: 1.10-1.73; P = 0.005) than in other seasons (6.1%). Summer for general surgery (OR: 1.90; 95% CI: 1.12-3.24; P = 0.018) and winter for gastroenterological surgery (1.46; 1.17-1.82; P = 0.001) emerged as independent risk factors for incisional SSI. Open surgery (OR: 2.72; 95% CI: 1.73-4.29; P < 0.001) and an ASA-PS score ≥3 (1.64; 1.08-2.50; P = 0.021) were independent risk factors for incisional SSI in patients undergoing gastroenterological surgery during winter. CONCLUSION Seasonality exists in the incisional SSI incidence following general and gastroenterological surgeries. Recognizing these trends may help enhance preventive strategies, highlighting the elevated risk in summer for general surgery and in winter for gastroenterological surgery.
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Murayama K, Fukui T, Kushibiki S, Sakamoto K, Inouchi K, Sugino T. Effects of medium-chain fatty acids and tributyrin supplementation in milk replacers on growth performance, blood metabolites, and hormone concentrations in Holstein dairy calves. J Dairy Sci 2023:S0022-0302(23)00277-1. [PMID: 37225581 DOI: 10.3168/jds.2022-22957] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2022] [Accepted: 01/15/2023] [Indexed: 05/26/2023]
Abstract
This study aimed to evaluate the effects of triglycerides containing medium-chain fatty acids (MCT) and tributyrin (TB) supplementation in a milk replacer (MR) on growth performance, plasma metabolites, and hormone concentrations in dairy calves. Sixty-three Holstein heifer calves (body weight at 8 d of age, 41.1 ± 2.91 kg; mean ± SD) were randomly assigned to 1 of 4 experimental MR (28% crude protein and 18% fat): (1) containing 3.2% C8:0 and 2.8% C10:0 (in fat basis) without TB supplementation (CONT; n = 15), (2) containing 6.7% C8:0 and 6.4% C10:0 without TB supplementation (MCT; n = 16), (3) containing 3.2% C8:0 and 2.8% C10:0 with 0.6% (dry matter basis) TB supplementation (CONT+TB; n = 16), (4) containing 6.7% C8:0 and 6.4% C10:0 with 0.6% TB supplementation (MCT+TB; n = 16). The MR were offered at 600 g/d (powder basis) from 8 to 14 d, up to 1,300 g/d from 15 to 21 d, 1,400 g/d from 22 to 49 d, down to 700 g/d from 50 to 56 d, 600 g/d from 57 to 63 d, and weaned at 64 d of age. All calves were fed calf starter, chopped hay, and water ad libitum. The data were analyzed using a 2-way ANOVA via the fit model procedure of JMP Pro 16 (SAS Institute Inc.). Medium-chain fatty acid supplementation did not affect the total dry matter intake. However, calves that were fed MCT had greater feed efficiency (gain/feed) before weaning (0.74 ± 0.098 vs. 0.71 ± 0.010 kg/kg) compared with non-MCT calves. The MCT calves also had a lower incidence of diarrhea compared with non-MCT calves during 23 to 49 d of age and the weaning period (50 to 63 d of age; 9.2% vs. 18.5% and 10.5% vs. 17.2%, respectively). Calves fed with TB had a greater total dry matter intake during postweaning (3,465 vs. 3,232 g/d). Calves fed TB also had greater body weight during the weaning (90.7 ± 0.97 vs. 87.9 ± 1.01 kg) and postweaning period (116.5 ± 1.47 vs. 112.1 ± 1.50 kg) compared with that of non-TB calves. The plasma metabolites and hormone concentrations were not affected by MCT or TB. These results suggest that MCT and TB supplementation in the MR may improve the growth performance and gut health of dairy calves.
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Suetani Y, Iida Y, Hirose K, Shichijo K, Yamamoto S, Fukui T, Kuramoto M, Arita Y, Saeki H, Miyoshi M, Okada M, Ogasawara N. Urine osmolality predicts worsening renal function and poor prognosis in acute decompensated heart failure. Eur Heart J 2022. [DOI: 10.1093/eurheartj/ehac544.1088] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Background/Purpose
Worsening renal function (WRF) can sometimes occur in the patients with acute decompensated heart failure (ADHF) and increase the risk of morbidity and mortality (1). In a previous study, it was reported that fractional excretion of sodium (FENa) reflects net sodium reabsorption from nephron segments and predicts WRF during treating ADHF (2). On the other hand, recently the new drugs which approach urine concentration mechanism and affect urine osmolality (U-OSM), such as tolvaptan and sodium-glucose cotransporter-2 inhibitor, have begun to be widely used as treatment of heart failure. Thus, we focused on U-OSM, which reflects not only sodium handling but also water excretion controlled by the collecting duct, and evaluated the association between WRF and U-OSM. Moreover, previous studies have demonstrated that FENa, fractional excretion of urea nitrogen and transtubular potassium concentration gradient are markers for long-term prognosis in patients with ADHF (3–5). Therefore, we also studied whether U-OSM can predict prognosis in ADHF.
Methods
A total of 157 patients admitted to our hospital because of a primary diagnosis of ADHF from February 2020 through July 2021 were retrospectively reviewed. U-OSM in the spot urinary samples were examined within 72 hours after admission. U-OSM was calculated based on the following validated formula (6): U-OSM = 1.07 × {2 × [urine sodium (mEq/L)] + [urine urea nitrogen (mg/dL)]/2.8 + [urine creatinine (mg/dl)] × 2/3} + 16.2. The primary outcome was the occurrence of WRF during hospitalization. WRF was defined as increased serum creatinine ≥0.3 mg/dL from baseline (7). The secondary outcome was the occurrence of ADHF readmission and all-cause death within 180 days after discharge.
Results
Primary Outcome. WRF developed in 46% of all patients. In the patients that developed WRF during hospitalization, U-OSM was significantly lower than in the patients without WRF (366±106 mOsm/L versus 430±128 mOsm/L; P<0.001). Receiver operating characteristic curve analysis revealed the optimal cutoff values of U-OSM was 403 mOsm/L (AUC 0.64; 95% CI: 0.56–0.72; P<0.001) to predict the WRF (Figure 1). On multivariable logistic regression analysis, U-OSM (OR, 1.99, 95% CI: 1.27–3.12; p=0.003) and serum creatinine (OR, 1.00, 95% CI: 0.99–1.00; P=0.009) were independent predictors of WRF.
Secondary Outcome. There were 34 patients (22%) readmitted and 9 patients (6%) died within 180 days after discharge. ROC curve analysis revealed the optimal cutoff values of U-OSM as 349 mOsm/L (C-statistic 0.74; 95% CI: 0.65–0.83; P<0.001) to predict ADHF readmission and all-cause death within 180 days (Figure 2A). On Kaplan-Meier analysis, the secondary outcome was significantly higher in patients with U-OSM<349 mOsm/L (u-OSM≥349, 57%, U-OSM<349, 43%; HR, 0.99; 95% CI: 0.99–1.00, P<0.001) (Figure 2B).
Conclusion
U-OSM on admission may be a predictor of WRF and a prognostic marker in ADHF patients.
Funding Acknowledgement
Type of funding sources: None.
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Sekine Y, Iwasaki Y, Aoi T, Mikiko E, Hirata M, Kamatani Y, Matsuda K, Kokichi S, Yoshida T, Murakami Y, Fukui T, Akamatsu S, Ogawa O, Nakagawa H, Numakura K, Narita S, Momozawa Y, Habuchi T. Large-scale genomic analysis of renal cell carcinoma using 1,532 Japanese patients and 5,996 controls. Eur Urol 2022. [DOI: 10.1016/s0302-2838(22)01200-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Masaki M, Maesaka H, Soutome K, Takano S, Watanabe T, Kubota K, Fujita T, Dewa H, Fukui T, Sugimoto T, Takeuchi M, Tanaka H. Adaptive feedforward control of closed orbit distortion caused by fast helicity-switching undulators. JOURNAL OF SYNCHROTRON RADIATION 2021; 28:1758-1768. [PMID: 34738929 PMCID: PMC8570204 DOI: 10.1107/s160057752101047x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/29/2021] [Accepted: 10/08/2021] [Indexed: 06/13/2023]
Abstract
A new correction algorithm for closed orbit distortion based on an adaptive feedforward control (AFC) has been developed. At SPring-8, two helicity-switching twin-helical undulators (THUs) had been implemented with conventional feedforward corrections. However, the validity of these corrections turned out to be expiring due to unforeseen variation in the error magnetic fields with time. The developed AFC system has been applied to the THUs dynamically updating the feedforward table without stopping the helicity switching amid user experiments. The error sources in the two THUs are successfully resolved and corrected even while the two THUs are switching simultaneously with the same repetition period. The actual operation of the new AFC system enables us to keep the orbit variations suppressed with an accuracy at the sub-micrometre level in a transparent way for light source users.
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Igawa S, Ono T, Kasajima M, Yamada K, Oguri A, Kameda A, Yamamoto H, Kakegawa M, Hiyoshi Y, Kusuhara S, Ozawa T, Otani S, Fukui T, Mitsufuji H, Masaru K, Yokoba M, Kubota M, Sasaki J, Naoki K. P76.55 Real-world Experience of the Utility in Afatinib Therapy for Patients with EGFR-Mutant Advanced NSCLC. J Thorac Oncol 2021. [DOI: 10.1016/j.jtho.2021.01.1112] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Ono T, Igawa S, Yamada K, Kameda A, Oguri A, Yamamoto H, Manabe H, Ozawa T, Kusuhara S, Kasajima M, Kakegawa M, Otani S, Fukui T, Sasaki J, Naoki K. P76.53 Impact of Neutrophil-to-Lymphocyte Ratio in Patients with EGFR-Mutant NSCLC Treated with Tyrosine Kinase Inhibitors. J Thorac Oncol 2021. [DOI: 10.1016/j.jtho.2021.01.1110] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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El Hafi L, Isobe S, Tabuchi Y, Katsumata Y, Nakamura H, Fukui T, Matsuo T, Garcia Ricardez GA, Yamamoto M, Taniguchi A, Hagiwara Y, Taniguchi T. System for augmented human–robot interaction through mixed reality and robot training by non-experts in customer service environments. Adv Robot 2019. [DOI: 10.1080/01691864.2019.1694068] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Igawa S, Ono T, Ozawa T, Sone H, Kusuhara S, Harada S, Ishihara M, Kasajima M, Hiyoshi Y, Fukui T, Kubota M, Sasaki J, Mitsufuji H, Naoki K. EP1.01-68 Impact of EGFR Genotype on the Efficacy of Osimertinib in Patients with Non-Small Cell Lung Cancer: A Prospective Observational Study. J Thorac Oncol 2019. [DOI: 10.1016/j.jtho.2019.08.2041] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Ota T, Fukui T, Nakahara Y, Takeda T, Uchino J, Mouri T, Kudo K, Nakajima S, Suzumura T, Okabe T, Hayashi H, Miyatake N, Nakano Y, Terashima M, Hasegawa Y, Tsukuda H, Matsui K, Masuda N, Fukuoka M. P1.04-40 Serum Perforin Levels During the First Cycle of Anti-PD-1 Antibody Therapies in Non-Small Cell Lung Cancer. J Thorac Oncol 2019. [DOI: 10.1016/j.jtho.2019.08.943] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Hayakawa T, Soda I, Sekiguchi A, Kawakami S, Kubota M, Mitsufuji H, Igawa S, Fukui T, Naoki K, Hayakawa K, Ishiyama H. EP1.12-36 Treatment Outcomes and Risk Factors of Limited-Stage Small Cell Lung Cancer Patients Treated with Chemoradiotherapy. J Thorac Oncol 2019. [DOI: 10.1016/j.jtho.2019.08.2279] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Fukui T, Hosotani S, Soda I, Ishiyama H, Ishihara M, Kasajima M, Hiyoshi Y, Igawa S, Katagiri S, Naoki K. P2.04-87 Efficacy of Immune Checkpoint Inhibitors for Locally Advanced Non-Small Cell Lung Cancer Patients Before Durvalumab Approval. J Thorac Oncol 2019. [DOI: 10.1016/j.jtho.2019.08.1592] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Koga A, Fukushima S, Matsumoto Y, Otani K, Fukushima N, Ishibashi-Ueda H, Harada-Shiba M, Kobayashi J, Suzuki K, Fukui T, Fujita T. Role of Immunocompetent Cells in Functional Recovery Post-Implantation of Ventricular Assist Device in Non-Ischemic Dilated Cardiomyopathy. J Heart Lung Transplant 2019. [DOI: 10.1016/j.healun.2019.01.892] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022] Open
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Korekawa A, Akasaka E, Rokunohe D, Fukui T, Kaneko T, Sawamura D, Ishikawa M, Yamamoto T, Nakano H. Nagashima-type palmoplantar keratoderma and malignant melanoma in Japanese patients. Br J Dermatol 2018; 180:415-416. [PMID: 30256384 DOI: 10.1111/bjd.17251] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Miyamoto S, Tokkito T, Bessho A, Fukamatsu N, Kunitoh H, Ishii M, Tanaka H, Aono H, Fukui T, Kusaka K, Hosomi Y, Hamada A, Yamada K, Okamoto H. ABCB1 genetic polymorphism and pharmacokinetic analysis of low dose erlotinib in frail patients with EGFR mutation (mt)-positive, non-small cell lung cancer: TORG1425. Ann Oncol 2018. [DOI: 10.1093/annonc/mdy292.047] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Hakiri S, Fukui T, Mori S, Kawaguchi K, Nakamura S, Ozeki N, Kato T, Goto M, Yatabe Y, Yokoi K. Clinicopathological features of thymoma with the expression of programmed death-ligand 1. Ann Oncol 2018. [DOI: 10.1093/annonc/mdy301.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Shirasawa M, Fukui T, Kusuhara S, Hiyoshi Y, Ishihara M, Kasajima M, Nishinarita N, Harada S, Igawa S, Yokoba M, Mitufuji H, Kubota M, Katagiri M, Sasaki J, Naoki K. P3.12-16 Prognostic Impact of M Descriptors of the 8th Edition of TNM Classification for Extensive Disease-Small Cell Lung Cancer. J Thorac Oncol 2018. [DOI: 10.1016/j.jtho.2018.08.1839] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Ota T, Takeda T, Fukui T, Nakahara Y, Kudo K, Okabe T, Hayashi H, Otani S, Hiyoshi Y, Yonesaka K, Sugiura T, Suzumura T, Terashima M, Nakano Y, Hasegawa Y, Tsukuda H, Matsui K, Masuda N, Fukuoka M. Serum biomarkers during the first cycle of anti-PD-1 antibody therapies in non-small cell lung cancer. Ann Oncol 2018. [DOI: 10.1093/annonc/mdy288.073] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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Hosokawa S, Otani S, Sasaki J, Fukui T, Nakahara Y, Bessho A, Fukamatsu N, Nakamura Y, Kasai T, Sugiyama T, Tokitho T, Seki N, Hamada A, Masuda N, Okamoto H. P3.01-37 Phase II Study of Amrubicin Plus Erlotinib in Previously Treated, Advanced Non-Small Cell Lung Cancer Patients with Wild-Type EGFR: TORG 1320. J Thorac Oncol 2018. [DOI: 10.1016/j.jtho.2018.08.1597] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Tani T, Fukui T, Sunata K, Funatsu Y, Koh H. P3.01-98 The Onset and Clinical Course of Transverse Myelopathy with Lung Cancer. J Thorac Oncol 2018. [DOI: 10.1016/j.jtho.2018.08.1658] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Kondo C, Hara T, Fukui T, Inagaki T, Takebe H, Nakazawa S, Fukami K, Kawaguchi Y, Kawaguchi H, Otake Y, Tanaka H. A stable pulsed power supply for multi-beamline XFEL operations. THE REVIEW OF SCIENTIFIC INSTRUMENTS 2018; 89:064704. [PMID: 29960536 DOI: 10.1063/1.5025109] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Since an X-ray Free Electron Laser (XFEL) facility is a linac-based single-user machine, a multi-beamline mode of operation, which improves the efficiency of user experiments, is critical for accommodating users' rapidly increasing demand for beamtime. A key supporting technology is a highly stable pulsed power supply (PS), which enables stable XFEL operations by precisely switching the beam route. We developed a high-power pulsed PS to drive a kicker magnet installed in a SACLA's beam switching system. SiC MOSFETs were adapted as switching elements to reduce the required size and to increase the electric power efficiency. The PS we developed provides two key capabilities: (i) a high current stability of 20 ppm (peak-to-peak) at a peak power of 0.24 MW and (ii) generation of controllable, bipolar, and trapezoidal current waveforms at 60 Hz. This paper describes the overall concept, the detailed design, the performance achieved, and the initial beam test results.
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Morita S, Fukui T, Sakamoto J, Rahman M. Physicians’ Choice in Using Internet and Fax for Patient Recruitment and Follow-up in a Randomized Controlled Trial. Methods Inf Med 2018. [DOI: 10.1055/s-0038-1633867] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Abstract
Summary
Objective:
To examine the physicians’ preference between Web and fax-based remote data entry (RDE) system for an ongoing randomized controlled trial (RCT) in Japan.
Methods:
We conducted a survey among all the collaborating physicians (n = 512) of the CASE-J (Candesartan Antihypertensive Survival Evaluation in Japan) trial, who have been recruiting patients and sending follow-up data using the Web or a fax-based RDE system. The survey instrument assessed physicians’ choice between Web and fax-based RDE systems, their practice pattern, and attitudes towards these two modalities.
Results:
A total of 448 (87.5%) responses were received. The proportions of physicians who used Web, fax, and the combination of these two were 45.9%, 33.3% and 20.8%, respectively. Multivariate logistic regression analyses revealed that physicians 55 years or younger [odds ratio (OR) = 1.9, 95% confidence interval (CI) = 1.1-3.3] and regular users of computers (OR = 4.2, 95% CI = 2.1-8.2) were more likely to use the Web-based RDE system.
Conclusions:
This information would be useful in designing an RCT with a Web-based RDE system in Japan and abroad.
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Takahara S, Lee SY, Iwakura T, Oe K, Fukui T, Okumachi E, Waki T, Arakura M, Sakai Y, Nishida K, Kuroda R, Niikura T. Altered expression of microRNA during fracture healing in diabetic rats. Bone Joint Res 2018; 7:139-147. [PMID: 29437637 PMCID: PMC5895942 DOI: 10.1302/2046-3758.72.bjr-2017-0082.r1] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
OBJECTIVES Diabetes mellitus (DM) is known to impair fracture healing. Increasing evidence suggests that some microRNA (miRNA) is involved in the pathophysiology of diabetes and its complications. We hypothesized that the functions of miRNA and changes to their patterns of expression may be implicated in the pathogenesis of impaired fracture healing in DM. METHODS Closed transverse fractures were created in the femurs of 116 rats, with half assigned to the DM group and half assigned to the control group. Rats with DM were induced by a single intraperitoneal injection of streptozotocin. At post-fracture days five, seven, 11, 14, 21, and 28, miRNA was extracted from the newly generated tissue at the fracture site. Microarray analysis was performed with miRNA samples from each group on post-fracture days five and 11. For further analysis, real-time polymerase chain reaction (PCR) analysis was performed at each timepoint. RESULTS Microarray analysis showed that there were 14 miRNAs at day five and 17 miRNAs at day 11, with a greater than twofold change in the DM group compared with the control group. Among these types of miRNA, five were selected based on a comparative and extended literature review. Real-time PCR analysis revealed that five types of miRNA (miR-140-3p, miR-140-5p, miR-181a-1-3p, miR-210-3p, and miR-222-3p) were differentially expressed with changing patterns of expression during fracture healing in diabetic rats compared with controls. CONCLUSIONS Our findings provide information to further understand the pathology of impaired fracture healing in a diabetic rat model. These results may allow the potential development of molecular therapy using miRNA for the treatment of impaired fracture healing in patients with DM.Cite this article: S. Takahara, S. Y. Lee, T. Iwakura, K. Oe, T. Fukui, E. Okumachi, T. Waki, M. Arakura, Y. Sakai, K. Nishida, R. Kuroda, T. Niikura. Altered expression of microRNA during fracture healing in diabetic rats. Bone Joint Res 2018;7:139-147. DOI: 10.1302/2046-3758.72.BJR-2017-0082.R1.
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Nakamura S, Tateyama H, Kawaguchi K, Fukui T, Hakiri S, Ozeki N, Kato T, Yokoi K. P1.17-004 Extrapleural Pneumonectomy for Patients with Stage IVa Thymoma: Pathological Evaluation of Disseminated Pleural Nodules. J Thorac Oncol 2017. [DOI: 10.1016/j.jtho.2017.09.1086] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Sato M, Kakumu T, Goto D, Kato T, Yogo N, Hase T, Morise M, Fukui T, Yokoi K, Sekido Y, Girard L, Minna J, Byers L, Heymach J, Coombes K, Kondo M, Hasegawa Y. P3.03-013 Identification of Proteosomal Catalytic Subunit PSMA6 as a Therapeutic Target for Lung Cancer through a Pooled shRNA Screen. J Thorac Oncol 2017. [DOI: 10.1016/j.jtho.2017.09.1639] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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