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Zuo Y, Sakatsume K, Sasaki K, Nakajima S, Fukushima N, Horiuchi H, Saiki Y, Lvadavws I. Severity of vWF Degradation Depends on LVAD types: Preliminary Results from a Multicenter Prospective Study. Thorac Cardiovasc Surg 2020. [DOI: 10.1055/s-0040-1705363] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Sasaki K, Iinuma S, Fujii M, Shibuya T, Kanno K, Honma M, Hatayama M, Ishida‐Yamamoto A. Radiation recall dermatitis induced by mogamulizumab. J Eur Acad Dermatol Venereol 2019; 34:e107-e108. [DOI: 10.1111/jdv.16033] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Teramoto Y, Baba N, Saito S, Sasaki K, Asami Y, Matsuya T, Yamamoto A, Nakamura Y. Relationship between modified surgical margin and prognosis of cutaneous squamous cell carcinoma. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz429.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Shimizu H, Sasaki K, Tanaka H, Aoyama T, Tachibana H, Koide Y, Kodaira T. Dosimetric Effect of Calculation Grid Size on Epidural Space in Spine Stereotactic Body Radiotherapy Using Volumetric Modulated Arc Therapy. Int J Radiat Oncol Biol Phys 2019. [DOI: 10.1016/j.ijrobp.2019.06.722] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Nishikawa T, Kawai K, Ishii H, Emoto S, Murono K, Kaneko M, Sasaki K, Shuno Y, Tanaka T, Hata K, Nozawa H, Ishihara S. The impact of indocyanine-green fluorescence imaging on intraluminal perfusion of a J-pouch. Tech Coloproctol 2019; 23:931-932. [PMID: 31456105 DOI: 10.1007/s10151-019-02065-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/27/2019] [Accepted: 08/09/2019] [Indexed: 10/26/2022]
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Hojo D, Nishikawa T, Takayama T, Hiyoshi M, Emoto S, Nozawa H, Kawai K, Hata K, Tanaka T, Shuno Y, Kaneko M, Sasaki K, Murono K, Ishii H, Sonoda H, Hoshina K, Ishihara S. 3D printed model-based simulation of laparoscopic surgery for descending colon cancer with a concomitant abdominal aortic aneurysm. Tech Coloproctol 2019; 23:793-797. [PMID: 31440952 DOI: 10.1007/s10151-019-02060-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/07/2019] [Accepted: 08/05/2019] [Indexed: 10/26/2022]
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Nozawa H, Morikawa T, Kawai K, Hata K, Tanaka T, Nishikawa T, Sasaki K, Shuno Y, Kaneko M, Hiyoshi M, Emoto S, Murono K, Sonoda H, Fukayama M, Ishihara S. Obstruction is associated with perineural invasion in T3/T4 colon cancer. Colorectal Dis 2019; 21:917-924. [PMID: 31017742 DOI: 10.1111/codi.14655] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/10/2018] [Accepted: 03/05/2019] [Indexed: 12/23/2022]
Abstract
AIM Perineural invasion (PNI) is a risk factor for recurrence and metastasis and consequently leads to decreased survival in patients with various malignancies. Recent studies showed that stent placement in obstructive colon cancer increases the frequency of PNI. We hypothesized that mechanical stress including obstruction itself may be associated with PNI. METHOD We retrospectively reviewed 496 patients with pathological T3 or T4 colon cancer who did not receive preoperative treatment. Data were collected from medical charts and pathological findings. The relationships between PNI and other clinicopathological factors were analysed using univariate and multivariate analyses. RESULTS PNI was observed in 239 (48%) patients. Obstruction was markedly more frequent in PNI-positive cancer (39%) than in PNI-negative cancer (24%, P = 0.0003). Multivariate analyses identified obstruction as one of the significant factors associated with PNI (OR 1.68, P = 0.028). Moreover, in 414 patients without distant metastasis who underwent complete resection, PNI was an independent factor associated with poor recurrence-free survival (hazard ratio 2.35, P = 0.003). The coexistence of PNI and obstruction resulted in greater decreases in recurrence-free survival than PNI-negative and/or non-obstructive cases. CONCLUSION Our results suggest that obstruction is associated with PNI and consequently contributes to an increased postoperative recurrence in colon cancer.
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Sasaki K, Shiota Y, Miura M. EP-1703 Dose Evaluation of Build-up Region of Photon Beam using Thermoluminescence Dosimeter (TLD) Sheet. Radiother Oncol 2019. [DOI: 10.1016/s0167-8140(19)32123-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Strasser P, Abe M, Aoki M, Choi S, Fukao Y, Higashi Y, Higuchi T, Iinuma H, Ikedo Y, Ishida K, Ito T, Ito TU, Iwasaki M, Kadono R, Kamigaito O, Kanda S, Kawagoe K, Kawall D, Kawamura N, Kitaguchi M, Koda A, Kojima KM, Kubo K, Matama M, Matsuda Y, Matsudate Y, Mibe T, Miyake Y, Mizutani T, Nagamine K, Nishimura S, Ogitsu T, Saito N, Sasaki K, Seo S, Shimizu HM, Shimomura K, Suehara T, Tajima M, Tanaka KS, Tanaka T, Tojo J, Tomono D, Torii HA, Torikai E, Toyoda A, Tsutsumi Y, Ueno K, Ueno Y, Yagi D, Yamamoto A, Yamanaka T, Yamazaki T, Yasuda H, Yoshida M, Yoshioka T. New precise measurements of muonium hyperfine structure at J-PARC MUSE. EPJ WEB OF CONFERENCES 2019. [DOI: 10.1051/epjconf/201919800003] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
High precision measurements of the ground state hyperfine structure (HFS) of muonium is a stringent tool for testing bound-state quantum electrodynamics (QED) theory, determining fundamental constants of the muon magnetic moment and mass, and searches for new physics. Muonium is the most suitable system to test QED because both theoretical and experimental values can be precisely determined. Previous measurements were performed decades ago at LAMPF with uncertainties mostly dominated by statistical errors. At the J-PARC Muon Science Facility (MUSE), the MuSEUM collaboration is planning complementary measurements of muonium HFS both at zero and high magnetic field. The new high-intensity muon beam that will soon be available at H-Line will provide an opportunity to improve the precision of these measurements by one order of magnitude. An overview of the different aspects of these new muonium HFS measurements, the current status of the preparation for high-field measurements, and the latest results at zero field are presented.
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Sasaki K, Ohshiro T, Sakio R, Toriumi M, Hatano A, Fukazawa E, Kono T, Yoshihama K, Ogawa K, Ohshiro T. Efficacy of seasonal allergic rhinitis using an 810 nm diode laser system. Laser Ther 2019; 28:11-18. [PMID: 31190693 DOI: 10.5978/islsm.28_19-or-01] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2018] [Accepted: 02/22/2019] [Indexed: 11/06/2022]
Abstract
Background and Aims Allergic rhinitis annually reach epidemic proportions in Japan. Approximately 30 to 40% of the population suffers from allergic rhinitis during the spring season. Symptoms comprise rhinorrhea, nasal congestion, and sneezing accompanied by irritation and itching of the eyes. The Ohshiro Clinic started using the conventional Nd:YAG laser for the treatment of allergic rhinitis in 1993, and from 2005 we started using a diode laser-pumped Nd:YAG laser. From 2010, we adopted a novel 810 nm diode laser, and the present retrospective study examined the efficacy rate of the treatment of allergic rhinitis in the 2018 season with this system, compared with a previous study in 2011. We aimed to confirm the degree of improvement for each symptom to evaluate effectiveness of the diode laser treatment. Subjects and methods Between January 8, 2018 and April 30, 2018, a large number of patients consulted our clinic with the major complaint of seasonal allergic rhinitis. They underwent a blood test, and the antigen-specific serum IgE antibody titers were measured for a definitive diagnosis of cedar pollinosis. A total of 211 target patients were treated during the trial period. The average age of the target group was 36.3 years, 134 males, and 77 females. The target patients were treated with lower nasal turbinate mucosal irradiation using a diode laser (ADL-20, Asuka Medical) delivering 810 nm at 7.5 W, with a total energy per treatment of 240 J/cm2. We adopted a five-step evaluation in accordance with the Japanese Guidelines for Allergic Rhinitis 2014 for the symptoms of rhinorrhea, sneezing and nasal obstruction. We assessed the degree of improvement in the severity of these symptoms following diode laser treatment from baseline to one month after treatment, in addition to assessing patient satisfaction with the degree of improvement in their quality of life (QOL). Results The 211 patients positive for cedar pollinosis by the antigen-specific serum IgE antibody tests were broken down by month by number and by improvement, no change or exacerbation as follows. January, 18 patients: 33.4%, 44.4% and 22.2%, respectively. February, 29: 10.4%, 44.4% and 22.2%, respectively. March, 146: 60.3%, 31.5% and 8.2%, respectively. April, 18: 77.8%, 16.7% and 5.5%, respectively. The monthly respective improvement, no change or worse patient QOL as percentages were as follows: January: 16.7%, 44.4% and 38.9%. February: 17.3%, 13.8% and 68.9%. March: 61.6%, 29.5% and 8.9%. April: 94.4%, 0.0% and 5.6%. The values for prevention of exacerbation versus exacerbation for each month were: January, 77.8% vs 22.2%; February, 41.4% vs 58.6%; March, 91.8% vs 8.2%; and April, 94.4% vs 5.6%. The mean efficacy rate for the trial period in the present study was therefore 52.6% which compared very favorably with the mean efficacy rate in the 2011 study of 53.4%. Conclusions The results showed that the 810 nm diode laser offered a safe and effective solution for the uncomfortable symptoms of allergic rhinitis and could be well applied during the season of Japanese cedar pollen dispersion. Furthermore, a tendency towards high efficacy was demonstrated for laser treatment in class 6 cedar pollinosis patients, based on the specific IgE antibody test.
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Sakio R, Ohshiro T, Sasaki K, Ohshiro T. Usefulness of picosecond pulse alexandrite laser treatment for nevus of Ota. Laser Ther 2018; 27:251-255. [PMID: 31182899 DOI: 10.5978/islsm.27_18-or-22] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2018] [Accepted: 11/29/2018] [Indexed: 11/06/2022]
Abstract
Background and aims Recently, novel picosecond pulse duration lasers (ps-lasers) have been developed for the treatment of multicolored and recalcitrant tattoos, and safety and efficacy have been reported. We therefore hypothesized that ps-lasers could be an alternative treatment for dermal pigmented lesions. We performed a retrospective review to evaluate the efficacy and safety of the ps-laser for nevus of Ota. Subjects and methods A retrospective photographic review of 15 patients with nevus of Ota was performed (ages from 10 months to 65 yr). The patients were treated in the Ohshiro Clinic with a picosecond-domain 755 nm alexandrite laser (ps-Alex laser) from June 2015 to August 2017. Improvement was evaluated as the percentage of pigmentation clearance comparing the baseline findings with those at 3 months after the final treatment using a four category grading scale: Poor, 0-24%; Fair, 25-49%; Good, 50-74%; and Excellent 75-100% improvement. Adverse events were also assessed. Results All patients obtained clinical improvement ranging from fair to excellent. All 5 patients whose primary treatment was the ps-Alex laser obtained excellent in 2-3 treatment sessions (average 2.5 sessions), and the average total treatment span was 10.0 months. Treatment with the ps-Alex laser caused transient hyperpigmentation followed by improvement to complete resolution at 3 months of follow-up. Conclusions Our results suggest that 755 nm ps laser treatment is efficacious for the treatment of nevus of Ota with minimum adverse events.
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Mali V, Fukuda A, Shigeta T, Uchida H, Kanazawa H, Hirata Y, Rahayatri T, Chiaki B, Sasaki K, Kitamura M, Sakamoto S, Kasahara M. Mild to Moderate Intrapulmonary Shunting in Pediatric Liver Transplantation: Is Screening Necessary? Transplant Proc 2018; 50:3496-3500. [DOI: 10.1016/j.transproceed.2018.05.025] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2018] [Accepted: 05/23/2018] [Indexed: 01/26/2023]
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Zopes J, Cujia KS, Sasaki K, Boss JM, Itoh KM, Degen CL. Three-dimensional localization spectroscopy of individual nuclear spins with sub-Angstrom resolution. Nat Commun 2018; 9:4678. [PMID: 30410050 PMCID: PMC6224602 DOI: 10.1038/s41467-018-07121-0] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2018] [Accepted: 10/10/2018] [Indexed: 11/20/2022] Open
Abstract
Nuclear magnetic resonance (NMR) spectroscopy is a powerful method for analyzing the chemical composition and molecular structure of materials. At the nanometer scale, NMR has the prospect of mapping the atomic-scale structure of individual molecules, provided a method that can sensitively detect single nuclei and measure inter-atomic distances. Here, we report on precise localization spectroscopy experiments of individual 13C nuclear spins near the central electronic sensor spin of a nitrogen-vacancy (NV) center in a diamond chip. By detecting the nuclear free precession signals in rapidly switchable external magnetic fields, we retrieve the three-dimensional spatial coordinates of the nuclear spins with sub-Angstrom resolution and for distances beyond 10 Å. We further show that the Fermi contact contribution can be constrained by measuring the nuclear g-factor enhancement. The presented method will be useful for mapping atomic positions in single molecules, an ambitious yet important goal of nanoscale nuclear magnetic resonance spectroscopy.
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Miyake H, Murono K, Kawai K, Hata K, Tanaka T, Nishikawa T, Otani K, Sasaki K, Kaneko M, Emoto S, Nozawa H. Evaluation of the vascular anatomy of the left-sided colon focused on the accessory middle colic artery: a single-centre study of 734 patients. Colorectal Dis 2018; 20:1041-1046. [PMID: 29877028 DOI: 10.1111/codi.14287] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/19/2018] [Accepted: 05/14/2018] [Indexed: 12/17/2022]
Abstract
AIM Surgery for colorectal cancer located in the splenic flexure is difficult to perform because of the complex anatomy. Recently, in addition to the middle colic artery and left colic artery (LCA), the accessory middle colic artery (AMCA) has been recognized as a feeding artery for the left-sided colon. This study aimed to evaluate the vascular anatomy of the splenic flexure focusing on the AMCA in a large number of patients. METHOD A total of 734 patients who underwent CT before surgery for colorectal cancer were enrolled. We retrospectively evaluated the vascular anatomy using both two- and three-dimensional CT angiography. RESULTS The AMCA existed in 36.4% of the cases (n = 267). In many cases, it originated from the superior mesenteric artery (n = 228, 85.4%). The AMCA had a common trunk with the transverse pancreatic artery in 54 patients (20.2%). The frequency of the presence of the AMCA was associated with the branching pattern of the LCA, and was more frequent when the LCA was absent (P < 0.001). CONCLUSION The presence of the AMCA is not rare and the AMCA has some branching patterns; therefore, recognizing it preoperatively and intra-operatively is important, being especially careful when the LCA is absent.
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Okamoto U, Nagamatsu Y, Horie N, Yamamoto J, Sasaki K. Variation in Activities of Non-Plasmin Fibrinolytic Proteinase and Plasminogen-Activator in the Lung and Spleen Induced by Bacterial Endotoxin in Rats with Special Reference to the Effects of MD-805. Thromb Haemost 2018. [DOI: 10.1055/s-0038-1661307] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Abstract
SummaryThe behavior of direct fibrinolytic (non-plasmin) proteinase activity and plasminogen-activator activity in the lung and spleen was investigated in rats after a single intravenous injection of bacterial endotoxin, and the influence of thrombin inhibitors on the effects of the endotoxin was assessed.The non-plasmin fibrinolytic activitiy was markedly increased following a decrease of plasminogen-activator in the lung. In addition, variations in hematological parameters, i.e. a decrease of platelet count, fibrinogen level and antithrombin III, and an increase of blood urea nitrogen and euglobulin fibrinolytic activity, were induced by the injection, indicating the occurrence of disseminated intravascular coagulation.In comparative studies on the effects of the endotoxin injection and thrombin infusion, in the lung and spleen an increase of fibrinolytic proteinase activity was induced in a similar manner; the plasminogen-activator activity in the lung was decreased by the endotoxin injection but not decreased by the thrombin infusion.In prevention studies with heparin and MD-805, the latter was found to prevent the decrease of either fibrinogen or platelet count. However, the former failed to prevent the decrease of platelet count although that of the fibrinogen level was prevented. Heparin and MD-805 exerted no preventive effect on the endotoxin-induced variations of proteinase activity and plasminogen-activator activity in the lung.
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Okamoto R, Taniguchi M, Onishi Y, Kumagai N, Uraki J, Fujimoto N, Hotta Y, Sasaki K, Furuta N, Fujii E, Yano Y, Yamada N, Ogura T, Takei Y, Ito M. 5971Predictors of the results of the confirmatory tests for the diagnosis of primary hyperaldosteronism in hypertensive patients with an aldosterone-to-renin ratio greater than 20. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy566.5971] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Kimura M, Sasaki K, Endo K, Kanatani A, Yamada Y, Miyazaki H, Nakagawa T. 659 An antidepressant effect of Tadalafil 5mg once daily in male LUTS and ED. J Sex Med 2018. [DOI: 10.1016/j.jsxm.2018.04.567] [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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Sasaki K, Uehara J, Iinuma S, Doi H, Honma M, Toki Y, Ishida-Yamamoto A. Hemophagocytic lymphohistiocytosis associated with dabrafenib and trametinib combination therapy following pembrolizumab administration for advanced melanoma. Ann Oncol 2018; 29:1602-1603. [DOI: 10.1093/annonc/mdy175] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Suzuki T, Uchino T, Hatta I, Miyazaki Y, Kato S, Sasaki K, Kagawa Y. Evaluation of the molecular lipid organization in millimeter-sized stratum corneum by synchrotron X-ray diffraction. Skin Res Technol 2018; 24:621-629. [PMID: 29707821 DOI: 10.1111/srt.12474] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/02/2018] [Indexed: 11/30/2022]
Abstract
BACKGROUND The aim of this study was to investigate whether the lamellar and lateral structure of intercellular lipid of stratum corneum (SC) can be evaluated from millimeter-sized SC (MSC) by X-ray diffraction. MATERIALS AND METHODS A 12 mm × 12 mm SC sheet from hairless mouse was divided into 16 pieces measuring 3 mm × 3 mm square. From another sheet, 4 pieces of ultramillimeter-sized SC (USC:1.5 mm × 1.5 mm square) were prepared. Small and wide-angle X-ray diffraction (SAXD and WAXD) measurements were performed on each piece. For MSC and USC, changes in the lamellar and lateral structure after the application of d-limonene were measured. RESULTS The intensity of SAXD peaks due to the lamellar phase of long periodicity phase (LPP) and WAXD peaks due to the lateral hydrocarbon chain-packing structures varied in MSC and USC pieces, although over the 12 mm × 12 mm SC sheet. These results indicated that the intercellular lipid components and their proportion appeared nearly uniform. Application of d-limonene on MSC and USC piece with strong peaks in SAXD and the WAXD resulted in the disappearance of peaks due to the lamellar phase of LPP and decrease in peak intensity for the lateral hydrocarbon chain-packing structures. These changes are consistent with normal-sized sample results. CONCLUSION We found that the selection of a sample piece with strong diffraction peaks due to the lamellar and lateral structure enabled evaluation of the SC structure in small-sized samples by X-ray diffraction.
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Margonis GA, Sasaki K, Gholami S, Kim Y, Andreatos N, Rezaee N, Deshwar A, Buettner S, Allen PJ, Kingham TP, Pawlik TM, He J, Cameron JL, Jarnagin WR, Wolfgang CL, D'Angelica MI, Weiss MJ. Genetic And Morphological Evaluation (GAME) score for patients with colorectal liver metastases. Br J Surg 2018; 105:1210-1220. [PMID: 29691844 DOI: 10.1002/bjs.10838] [Citation(s) in RCA: 75] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2017] [Revised: 12/05/2017] [Accepted: 01/15/2018] [Indexed: 02/06/2023]
Abstract
BACKGROUND This study sought to develop a clinical risk score for resectable colorectal liver metastasis (CRLM) by combining clinicopathological and clinically available biological indicators, including KRAS. METHODS A cohort of patients who underwent resection for CRLM at the Johns Hopkins Hospital (JHH) was analysed to identify independent predictors of overall survival (OS) that can be assessed before operation; these factors were combined into the Genetic And Morphological Evaluation (GAME) score. The score was compared with the current standard (Fong score) and validated in an external cohort of patients from the Memorial Sloan Kettering Cancer Center (MSKCC). RESULTS Six preoperative predictors of worse OS were identified on multivariable Cox regression analysis in the JHH cohort (502 patients). The GAME score was calculated by allocating points to each patient according to the presence of these predictive factors: KRAS-mutated tumours (1 point); carcinoembryonic antigen level 20 ng/ml or more (1 point), primary tumour lymph node metastasis (1 point); Tumour Burden Score between 3 and 8 (1 point) or 9 and over (2 points); and extrahepatic disease (2 points). The high-risk group in the JHH cohort (GAME score at least 4 points) had a 5-year OS rate of 11 per cent, compared with 73·4 per cent for those in the low-risk group (score 0-1 point). Importantly, in cohorts from both the JHH and MSKCC (747 patients), the discriminatory capacity of the GAME score was superior to that of the Fong score, as demonstrated by the C-index and the Akaike information criterion. CONCLUSION The GAME score is a preoperative prognostic tool that can be used to inform treatment selection.
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Sasaki K, Shiota Y, Miura Y. EP-1746: Influence of Cable Effect on Polarity Correction Factor of Micro Volume Ionization Chamber. Radiother Oncol 2018. [DOI: 10.1016/s0167-8140(18)32055-3] [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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Sasaki K, Wada K, Araki M, Kobayashi Y, Sugimoto M, Ebara S, Watanabe T, Nasu Y. Diagnostic Ureteroscopy for Cases Clinically Suspected of Carcinoma in Situ of the Upper Urinary Tract. ACTA MEDICA OKAYAMA 2018; 71:227-232. [PMID: 28655942 DOI: 10.18926/amo/55205] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
We elucidate the fate of cases clinically suspected of carcinoma in situ (Cis) of the upper tract with serial ureteroscopy. Of 143 patients who underwent ureteroscopy for suspected upper tract urothelial carcinoma (UTUC) between January 2008 and February 2016, 12 cases with consistently positive urine cytology and poorly detectable upper-tract malignancies by imaging were reviewed. In these 12 patients, 19 ureteroscopy procedures (25 renal units) were performed. Vesical random biopsy was performed before the 1st ureteroscopy to exclude malignancy of the bladder in all 12 cases. Median follow-up was 42 (13-67) months. Positive biopsy results at the 1st ureteroscopy were obtained in 3 (25%) patients and all were diagnosed wth Cis of the upper tract. Two (17%) of 9 patients who were negative or inconclusive at the 1st ureteroscopy were finally diagnosed as UTUC, but plural ureteroscopy procedures were needed for the diagnoses in both. Carcinoma of the bladder appeared in 5 (42%) patients during follow-up, despite the earlier ruling out of vesical malignancy. Four (33%) of those 5 patients never developed upper-tract urothelial carcinoma during follow-up. Caution is required before undertaking radical surgery for cases clinically suspected of Cis of the upper tract. In our experience, only 42% of such patients developed UTUC; another 33% eventually developed carcinoma of the bladder without UTUC.
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Zopes J, Sasaki K, Cujia KS, Boss JM, Chang K, Segawa TF, Itoh KM, Degen CL. High-Resolution Quantum Sensing with Shaped Control Pulses. PHYSICAL REVIEW LETTERS 2017; 119:260501. [PMID: 29328731 DOI: 10.1103/physrevlett.119.260501] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/22/2017] [Indexed: 06/07/2023]
Abstract
We investigate the application of amplitude-shaped control pulses for enhancing the time and frequency resolution of multipulse quantum sensing sequences. Using the electronic spin of a single nitrogen-vacancy center in diamond and up to 10 000 coherent microwave pulses with a cosine square envelope, we demonstrate 0.6-ps timing resolution for the interpulse delay. This represents a refinement by over 3 orders of magnitude compared to the 2-ns hardware sampling. We apply the method for the detection of external ac magnetic fields and nuclear magnetic resonance signals of ^{13}C spins with high spectral resolution. Our method is simple to implement and especially useful for quantum applications that require fast phase gates, many control pulses, and high fidelity.
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Onodera T, Kawai M, Obara K, Enomoto T, Sasaki K, Osabe T, Ogasawara K, Toyoda C, Tsuneyama H, Uchikawa M, Inaba S, Satake M. Silent KEL alleles identified from Japanese individuals with the K o phenotype. Vox Sang 2017; 113:290-296. [PMID: 29280152 DOI: 10.1111/vox.12628] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2017] [Revised: 12/04/2017] [Accepted: 12/05/2017] [Indexed: 11/27/2022]
Abstract
BACKGROUND AND OBJECTIVE The rare Ko phenotype lacks all 36 antigens in the Kell blood system. The molecular basis of the Ko phenotype has been investigated, and more than 40 silent KEL alleles are reported by many investigators. The majority of silent alleles are the KEL*02 background. Here, we report molecular genetic analysis of the KEL gene in Japanese individuals with the Ko phenotype. MATERIALS AND METHODS The Ko phenotype was screened from Japanese blood donors for several years using monoclonal anti-Ku or anti-K14 by an automated blood grouping system PK7300. Kell-related antigens were typed by standard tube tests. Genomic DNA was extracted from the blood samples, and KEL gene was analysed by polymerase chain reaction (PCR) and Sanger sequencing. RESULTS We collected 35 Ko blood samples with K-k-, Kp(a-b-), Js(a-b-) and K14-. PCR and sequence analysis revealed that 11 individuals were homozygous for a mutant KEL allele with a c.299G>C (p.Cys100Ser) mutation (rs. 200268316). Three individuals were homozygous for the KEL*02N.24 allele that is c.715G>T (p.Glu239*), and one individual was homozygous for the KEL*02N.40 allele that is c.1474C>T (p.Arg492*). Five individuals were homozygous for novel KEL alleles with single-nucleotide mutations, four individuals had a c.2175delC (p.Pro725 fs*43), and one individual had a c.328delA (p.Arg110 fs*79). The remaining 15 individuals were compound heterozygous, and eight new alleles were identified from them. CONCLUSIONS We identified three known and ten new silent KEL alleles from Japanese individuals with the Ko phenotype. The KEL allele with the c.299G>C (p.Cys100Ser) mutation was the most frequent.
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Otani K, Nozawa H, Kiyomatsu T, Kawai K, Hata K, Tanaka T, Nishikawa T, Sasaki K, Kaneko M, Murono K, Emoto S, Watanabe T. Laparoscopic Deloyers procedure to facilitate primary anastomosis after extended resection for synchronous cancers of transverse colon and rectum: easy to preform with good functional outcome. Tech Coloproctol 2017; 21:975-976. [DOI: 10.1007/s10151-017-1715-8] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/03/2017] [Accepted: 10/30/2017] [Indexed: 11/30/2022]
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