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4. Response to correspondence on 'Reproducibility of CRISPR-Cas9 methods for generation of conditional mouse alleles: a multi-center evaluation'.

Author

Gurumurthy, CB, O'Brien, AR, Quadros, RM, Adams, J, Alcaide, P, Ayabe, S, Ballard, J, Batra, SK, Beauchamp, M-C, Becker, KA, Bernas, G, Brough, D, Carrillo-Salinas, F, Chan, W, Chen, H, Dawson, R, DeMambro, V, D'Hont, J, Dibb, K, Eudy, JD, Gan, L, Gao, J, Gonzales, A, Guntur, A, Guo, H, Harms, DW, Harrington, A, Hentges, KE, Humphreys, N, Imai, S, Ishii, H, Iwama, M, Jonasch, E, Karolak, M, Keavney, B, Khin, N-C, Konno, M, Kotani, Y, Kunihiro, Y, Lakshmanan, I, Larochelle, C, Lawrence, CB, Li, L, Lindner, V, Liu, X-D, Lopez-Castejon, G, Loudon, A, Lowe, J, Jerome-Majeweska, L, Matsusaka, T, Miura, H, Miyasaka, Y, Morpurgo, B, Motyl, K, Nabeshima, Y-I, Nakade, K, Nakashiba, T, Nakashima, K, Obata, Y, Ogiwara, S, Ouellet, M, Oxburgh, L, Piltz, S, Pinz, I, Ponnusamy, MP, Ray, D, Redder, RJ, Rosen, CJ, Ross, N, Ruhe, MT, Ryzhova, L, Salvador, AM, Alam, SS, Sedlacek, R, Sharma, K, Smith, C, Staes, K, Starrs, L, Sugiyama, F, Takahashi, S, Tanaka, T, Trafford, A, Uno, Y, Vanhoutte, L, Vanrockeghem, F, Willis, BJ, Wright, CS, Yamauchi, Y, Yi, X, Yoshimi, K, Zhang, X, Zhang, Y, Ohtsuka, M, Das, S, Garry, DJ, Hochepied, T, Thomas, P, Parker-Thornburg, J, Adamson, AD, Yoshiki, A, Schmouth, J-F, Golovko, A, Thompson, WR, Lloyd, KCK, Wood, JA, Cowan, M, Mashimo, T, Mizuno, S, Zhu, H, Kasparek, P, Liaw, L, Miano, JM, Burgio, G, Gurumurthy, CB, O'Brien, AR, Quadros, RM, Adams, J, Alcaide, P, Ayabe, S, Ballard, J, Batra, SK, Beauchamp, M-C, Becker, KA, Bernas, G, Brough, D, Carrillo-Salinas, F, Chan, W, Chen, H, Dawson, R, DeMambro, V, D'Hont, J, Dibb, K, Eudy, JD, Gan, L, Gao, J, Gonzales, A, Guntur, A, Guo, H, Harms, DW, Harrington, A, Hentges, KE, Humphreys, N, Imai, S, Ishii, H, Iwama, M, Jonasch, E, Karolak, M, Keavney, B, Khin, N-C, Konno, M, Kotani, Y, Kunihiro, Y, Lakshmanan, I, Larochelle, C, Lawrence, CB, Li, L, Lindner, V, Liu, X-D, Lopez-Castejon, G, Loudon, A, Lowe, J, Jerome-Majeweska, L, Matsusaka, T, Miura, H, Miyasaka, Y, Morpurgo, B, Motyl, K, Nabeshima, Y-I, Nakade, K, Nakashiba, T, Nakashima, K, Obata, Y, Ogiwara, S, Ouellet, M, Oxburgh, L, Piltz, S, Pinz, I, Ponnusamy, MP, Ray, D, Redder, RJ, Rosen, CJ, Ross, N, Ruhe, MT, Ryzhova, L, Salvador, AM, Alam, SS, Sedlacek, R, Sharma, K, Smith, C, Staes, K, Starrs, L, Sugiyama, F, Takahashi, S, Tanaka, T, Trafford, A, Uno, Y, Vanhoutte, L, Vanrockeghem, F, Willis, BJ, Wright, CS, Yamauchi, Y, Yi, X, Yoshimi, K, Zhang, X, Zhang, Y, Ohtsuka, M, Das, S, Garry, DJ, Hochepied, T, Thomas, P, Parker-Thornburg, J, Adamson, AD, Yoshiki, A, Schmouth, J-F, Golovko, A, Thompson, WR, Lloyd, KCK, Wood, JA, Cowan, M, Mashimo, T, Mizuno, S, Zhu, H, Kasparek, P, Liaw, L, Miano, JM, and Burgio, G

Published
2021

10. Self-field effects in intrinsic Josephson junction stacks in (Bi,Pb)2Dr2CaCu2Oy single crystals

Author

Oya, G., Iwama, M., and Irie, A.

Subjects
Josephson junction -- Research, Crystals -- Electric properties, Josephson effect -- Research, Business, Electronics, Electronics and electrical industries
Abstract

A study was conducted on the self-field effects of intrinsic Josephson junction stacks in the c-axis direction in highly Pb-substituted (Bi1-xPbx)2Sr2CaCu2Oy single crystals with multiple branches with hysteresis on the I-V characteristics. Multiple resistive branches, supercurrent at zero voltage and the flux flow branch were observed in the mesa of the single crystal with x=-0.2. Analysis of the microwave-induced Shapiro step also confirmed the presence of alternating current Josephson effect.

Published
1997

11. Reproducibility of CRISPR-Cas9 methods for generation of conditional mouse alleles: a multi-center evaluation.

Author

Gurumurthy, CB, O'Brien, AR, Quadros, RM, Adams, J, Alcaide, P, Ayabe, S, Ballard, J, Batra, SK, Beauchamp, M-C, Becker, KA, Bernas, G, Brough, D, Carrillo-Salinas, F, Chan, W, Chen, H, Dawson, R, DeMambro, V, D'Hont, J, Dibb, KM, Eudy, JD, Gan, L, Gao, J, Gonzales, A, Guntur, AR, Guo, H, Harms, DW, Harrington, A, Hentges, KE, Humphreys, N, Imai, S, Ishii, H, Iwama, M, Jonasch, E, Karolak, M, Keavney, B, Khin, N-C, Konno, M, Kotani, Y, Kunihiro, Y, Lakshmanan, I, Larochelle, C, Lawrence, CB, Li, L, Lindner, V, Liu, X-D, Lopez-Castejon, G, Loudon, A, Lowe, J, Jerome-Majewska, LA, Matsusaka, T, Miura, H, Miyasaka, Y, Morpurgo, B, Motyl, K, Nabeshima, Y-I, Nakade, K, Nakashiba, T, Nakashima, K, Obata, Y, Ogiwara, S, Ouellet, M, Oxburgh, L, Piltz, S, Pinz, I, Ponnusamy, MP, Ray, D, Redder, RJ, Rosen, CJ, Ross, N, Ruhe, MT, Ryzhova, L, Salvador, AM, Alam, SS, Sedlacek, R, Sharma, K, Smith, C, Staes, K, Starrs, L, Sugiyama, F, Takahashi, S, Tanaka, T, Trafford, AW, Uno, Y, Vanhoutte, L, Vanrockeghem, F, Willis, BJ, Wright, CS, Yamauchi, Y, Yi, X, Yoshimi, K, Zhang, X, Zhang, Y, Ohtsuka, M, Das, S, Garry, DJ, Hochepied, T, Thomas, P, Parker-Thornburg, J, Adamson, AD, Yoshiki, A, Schmouth, J-F, Golovko, A, Thompson, WR, Lloyd, KCK, Wood, JA, Cowan, M, Mashimo, T, Mizuno, S, Zhu, H, Kasparek, P, Liaw, L, Miano, JM, Burgio, G, Gurumurthy, CB, O'Brien, AR, Quadros, RM, Adams, J, Alcaide, P, Ayabe, S, Ballard, J, Batra, SK, Beauchamp, M-C, Becker, KA, Bernas, G, Brough, D, Carrillo-Salinas, F, Chan, W, Chen, H, Dawson, R, DeMambro, V, D'Hont, J, Dibb, KM, Eudy, JD, Gan, L, Gao, J, Gonzales, A, Guntur, AR, Guo, H, Harms, DW, Harrington, A, Hentges, KE, Humphreys, N, Imai, S, Ishii, H, Iwama, M, Jonasch, E, Karolak, M, Keavney, B, Khin, N-C, Konno, M, Kotani, Y, Kunihiro, Y, Lakshmanan, I, Larochelle, C, Lawrence, CB, Li, L, Lindner, V, Liu, X-D, Lopez-Castejon, G, Loudon, A, Lowe, J, Jerome-Majewska, LA, Matsusaka, T, Miura, H, Miyasaka, Y, Morpurgo, B, Motyl, K, Nabeshima, Y-I, Nakade, K, Nakashiba, T, Nakashima, K, Obata, Y, Ogiwara, S, Ouellet, M, Oxburgh, L, Piltz, S, Pinz, I, Ponnusamy, MP, Ray, D, Redder, RJ, Rosen, CJ, Ross, N, Ruhe, MT, Ryzhova, L, Salvador, AM, Alam, SS, Sedlacek, R, Sharma, K, Smith, C, Staes, K, Starrs, L, Sugiyama, F, Takahashi, S, Tanaka, T, Trafford, AW, Uno, Y, Vanhoutte, L, Vanrockeghem, F, Willis, BJ, Wright, CS, Yamauchi, Y, Yi, X, Yoshimi, K, Zhang, X, Zhang, Y, Ohtsuka, M, Das, S, Garry, DJ, Hochepied, T, Thomas, P, Parker-Thornburg, J, Adamson, AD, Yoshiki, A, Schmouth, J-F, Golovko, A, Thompson, WR, Lloyd, KCK, Wood, JA, Cowan, M, Mashimo, T, Mizuno, S, Zhu, H, Kasparek, P, Liaw, L, Miano, JM, and Burgio, G

Abstract

BACKGROUND: CRISPR-Cas9 gene-editing technology has facilitated the generation of knockout mice, providing an alternative to cumbersome and time-consuming traditional embryonic stem cell-based methods. An earlier study reported up to 16% efficiency in generating conditional knockout (cKO or floxed) alleles by microinjection of 2 single guide RNAs (sgRNA) and 2 single-stranded oligonucleotides as donors (referred herein as "two-donor floxing" method). RESULTS: We re-evaluate the two-donor method from a consortium of 20 laboratories across the world. The dataset constitutes 56 genetic loci, 17,887 zygotes, and 1718 live-born mice, of which only 15 (0.87%) mice contain cKO alleles. We subject the dataset to statistical analyses and a machine learning algorithm, which reveals that none of the factors analyzed was predictive for the success of this method. We test some of the newer methods that use one-donor DNA on 18 loci for which the two-donor approach failed to produce cKO alleles. We find that the one-donor methods are 10- to 20-fold more efficient than the two-donor approach. CONCLUSION: We propose that the two-donor method lacks efficiency because it relies on two simultaneous recombination events in cis, an outcome that is dwarfed by pervasive accompanying undesired editing events. The methods that use one-donor DNA are fairly efficient as they rely on only one recombination event, and the probability of correct insertion of the donor cassette without unanticipated mutational events is much higher. Therefore, one-donor methods offer higher efficiencies for the routine generation of cKO animal models.

Published
2019

14. P3548Noninvasive estimation of left ventricular diastolic function in patients with hypertension and normal ejection fraction using 3-dimensional speckle tracking echocardiography

Author

Minatoguchi, S, primary, Tanaka, R, additional, Yoshizane, T, additional, Deguchi, T, additional, Sato, H, additional, Ono, K, additional, Nagaya, M, additional, Miwa, H, additional, Iwama, M, additional, Noda, T, additional, Watanabe, S, additional, Kawasaki, M, additional, and Okura, H, additional

Published
2019
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15. P860Left ventricular layer torsion in heart failure with preserved versus reduced ejection fraction assessed by one-beat real-time 3-dimensional speckle tracking echocardiography with high volume rate

Author

Minatoguchi, S, primary, Yoshizane, T, additional, Tanaka, R, additional, Watanabe, T, additional, Ono, K, additional, Saeki, M, additional, Nagaya, M, additional, Yagasaki, H, additional, Kojima, T, additional, Iwama, M, additional, Noda, T, additional, Ohashi, H, additional, Watanabe, S, additional, Minatoguchi, S, additional, and Kawasaki, M, additional

Published
2018
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16. P6510Noninvasive evaluation of left ventricular relaxation and stiffness as diastolic function using speckle tracking echocardiography: validation study by cardiac catheterization

Author

Kawamura, I, primary, Yoshizane, T, additional, Tanaka, R, additional, Minatoguchi, S, additional, Nagaya, M, additional, Ono, K, additional, Iwama, M, additional, Okumura, N, additional, Tsuchiya, A, additional, Tomita, S, additional, Matsuo, H, additional, Noda, T, additional, Suzuki, T, additional, and Kawasaki, M, additional

Published
2018
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17. P1770Left ventricular torsion and untorsion rate assessed by one-beat real-time three-dimensional speckle tracking echocardiography as an novel index of systolic and diastolic function

Author

Minatoguchi, S, primary, Yoshizane, T, additional, Tanaka, R, additional, Watanabe, T, additional, Yagasaki, H, additional, Saeki, M, additional, Nagaya, M, additional, Iwama, M, additional, Ono, K, additional, Noda, T, additional, Watanabe, S, additional, Minatoguchi, S, additional, and Kawasaki, M, additional

Published
2018
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26. Left atrial global and regional function in patients with paroxysmal atrial fibrillation has already been impaired before enlargement of left atrium: velocity vector imaging echocardiography study

Author

Kojima, T., primary, Kawasaki, M., additional, Tanaka, R., additional, Ono, K., additional, Hirose, T., additional, Iwama, M., additional, Watanabe, T., additional, Noda, T., additional, Watanabe, S., additional, Takemura, G., additional, and Minatoguchi, S., additional

Published
2011
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32. How does ephrinB3/EphA4 signaling regulate motor-circuit formation?

Author

Iwasato, Takuji, primary, Katoh, Hironori, additional, Nishimaru, Hiroshi, additional, Ishikawa, Yukio, additional, Inoue, Haruhisa, additional, Saito, Y.M., additional, Ando, R., additional, Iwama, M., additional, Takahashi, Ryosuke, additional, Negishi, Manabu, additional, and Itohara, Shigeyoshi, additional

Published
2007
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