Search results for: K. Kawai

Items from 1 to 20 out of 228 results

article

The vomeronasal system in semiaquatic beavers

Jumpei Tomiyasu, Anna Korzekwa, Yusuke K. Kawai, Christian A. Robstad, more

Journal of Anatomy > 241 > 3 > 809 - 819

In contrast to the main olfactory system that detects volatile chemicals in the nasal air, the vomeronasal system can detect nonvolatile chemicals as well as volatiles. In the vomeronasal system, chemicals are perceived by the vomeronasal organ (VNO) projecting axons to the accessory olfactory bulb (AOB). Beavers (Castor spp.) are semiaquatic mammals that have developed chemical communication. It...

article

Utility of computed tomography and ¹⁸F‐fluorodeoxyglucose with positron emission tomography/computed tomography for distinguishing appendiceal mucocele caused by mucinous adenocarcinoma from other pathologies

M. Kaneko, K. Kawai, H. Nozawa, K. Hata, more

Colorectal Disease > 22 > 12 > 1984 - 1990

Aim Differentiating appendiceal mucocele with mucinous adenocarcinoma from other pathologies before surgery is difficult. The objective of this study was to evaluate the utility of CT and ¹⁸F‐fluorodeoxyglucose (FDG) with positron emission tomography (PET)/CT for differentiating mucinous adenocarcinoma of appendiceal mucocele from other pathologies. Method The study included 25 patients who underwent...

article

Pleiotropy in the Genetic Predisposition to Rheumatoid Arthritis: A Phenome‐Wide Association Study and Inverse Variance–Weighted Meta‐Analysis

Vivian K. Kawai, Mingjian Shi, Qiping Feng, Cecilia P. Chung, more

Arthritis & Rheumatology > 72 > 9 > 1483 - 1492

Objective This study was undertaken to investigate the hypothesis that a genetic predisposition toward rheumatoid arthritis (RA) increases the risk of 10 cardiometabolic and autoimmune disorders previously associated with RA in epidemiologic studies, and to define new genetic pleiotropy present in RA. Methods Two approaches were used to test our hypothesis. First, we constructed a weighted genetic...

article

Effects of preceding endoscopic treatment on laparoscopic surgery for early rectal cancer

H. Nozawa, H. Ishii, H. Sonoda, S. Emoto, more

Colorectal Disease > 22 > 8 > 906 - 913

Aim Endoscopic treatment for rectal cancer, such as endoscopic mucosal resection and endoscopic submucosal dissection, causes inflammation, oedema and fibrosis in the surrounding tissue. However, little is known about the effect of these endoscopic therapies on salvage laparoscopic rectal surgery. The objective of this retrospective cohort study was to analyse the effect of preceding endoscopic treatment...

article

Vascular anatomy of the splenic flexure, focusing on the accessory middle colic artery and vein

K. Murono, H. Miyake, D. Hojo, H. Nozawa, more

Colorectal Disease > 22 > 4 > 392 - 398

Aim Recently, the accessory middle colic artery (AMCA) has been recognized as the vessel that supplies blood to the splenic flexure. However, the positional relationship between the AMCA and inferior mesenteric vein (IMV) has not been evaluated. Herein, we aimed to evaluate the anatomy of the AMCA and the splenic flexure vein (SFV). Method Two hundred and five patients with colorectal cancer who...

article

Incidence of and risk factors for lymphocele formation after lateral pelvic lymph node dissection for rectal cancer: a retrospective study

K. Ochiai, M. Kaneko, H. Nozawa, K. Kawai, more

Colorectal Disease > 22 > 2 > 161 - 169

Aim Pelvic lymphocele is a common complication that develops after pelvic lymph node dissection. The incidence of pelvic lymphocele formation has been reported to be 10.5–51% after gynaecological or urological procedures. However, no evidence has been reported thus far with regard to the development of pelvic lymphocele following lateral pelvic lymph node dissection (LPND) for low rectal cancer....

article

The impact of indocyanine-green fluorescence imaging on intraluminal perfusion of a J-pouch

T. Nishikawa, K. Kawai, H. Ishii, S. Emoto, more

Techniques in Coloproctology > 2019 > 23 > 9 > 931-932

Electronic supplementary material The online version of this article ( https://doi.org/10.1007/s10151-019-02065-z ) contains supplementary material, which is available to authorized users.

article

3D printed model-based simulation of laparoscopic surgery for descending colon cancer with a concomitant abdominal aortic aneurysm

D. Hojo, T. Nishikawa, T. Takayama, M. Hiyoshi, more

Techniques in Coloproctology > 2019 > 23 > 8 > 793-797

article

Obstruction is associated with perineural invasion in T3/T4 colon cancer

H. Nozawa, T. Morikawa, K. Kawai, K. Hata, more

Colorectal Disease > 21 > 8 > 917 - 924

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...

article

Variants in BMI‐Associated Genes and Adrenergic Genes are not Associated with Gestational Weight Trajectory

Vivian K. Kawai, Samuel K. Nwosu, Daniel Kurnik, Frank E. Harrell, more

Obesity > 27 > 7 > 1184 - 1189

Objective The aim of this study is to define the association between a genetic risk score (GRS) that combined the effect of multiple BMI‐associated variants and gestational weight trajectory. Because pregnancy is a state of sympathetic activation, the association between gestational weight trajectory and variants in adrenergic pathways previously associated with weight was examined. Methods In...

article

Cranial-first approach for laparoscopic surgery with splenic flexure mobilization

A. Ogura, R. Kobayashi, T. Aritake, T. Maeda, more

Techniques in Coloproctology > 2019 > 23 > 7 > 693-694

Electronic supplementary material The online version of this article ( https://doi.org/10.1007/s10151-019-02010-0 ) contains supplementary material, which is available to authorized users.

article

Evaluation of the vascular anatomy of the left‐sided colon focused on the accessory middle colic artery: a single‐centre study of 734 patients

H. Miyake, K. Murono, K. Kawai, K. Hata, more

Colorectal Disease > 20 > 11 > 1041 - 1046

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...

article

Prognostic impact of interhospital variation in adjuvant chemotherapy for patients with Stage II/III colorectal cancer: a nationwide study

K. Arakawa, K. Kawai, T. Tanaka, K. Hata, more

Colorectal Disease > 20 > 7 > O162 - O172

Aim Clinical guidelines recommend adjuvant chemotherapy for high‐risk patients with Stage II–III colorectal cancer. However, chemotherapeutic administration rates differ significantly between hospitals. We assessed the prognostic benefit of adjuvant chemotherapy in patients with Stage IIb/c colorectal cancer, and the prognostic impact of interhospital variations in the administration of adjuvant...

article

Diagnostic value of FDG-PET/CT for lateral pelvic lymph node metastasis in rectal cancer treated with preoperative chemoradiotherapy

S. Ishihara, K. Kawai, T. Tanaka, T. Kiyomatsu, more

Techniques in Coloproctology > 2018 > 22 > 5 > 347-354

Background The aim of this study was to elucidate the diagnostic value of ¹⁸F-fluorodeoxyglucose positron emission tomography (PET)–computed tomography (CT) for lateral pelvic lymph node (LPN) metastasis in rectal cancer treated with preoperative chemoradiotherapy (CRT). Methods Eighteen rectal cancer patients with enlarged (≥ 8 mm) LPNs were treated with CRT followed by total mesorectal excision...

article

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

K. Otani, H. Nozawa, T. Kiyomatsu, K. Kawai, more

Techniques in Coloproctology > 2017 > 21 > 12 > 975-976

Electronic supplementary material The online version of this article ( https://doi.org/10.1007/s10151-017-1715-8 ) contains supplementary material, which is available to authorized users.

chapter

64J output energy in 10ns pulse from cryogenic Yb:YAG ceramics laser

T. Sekine, Y. Takeuchi, Y. Hatano, Y. Muramatsu, more

2017 Conference on Lasers and Electro-Optics (CLEO) > 1 - 2

2017 Conference on Lasers and Electro-Optics (CLEO)

A 64J at 10 ns output was demonstrated by diode-pumped cryogenically cooled Yb:YAG ceramic laser amplifier. An extraction efficiency was evaluated 43.3% at stored energy of 148J with small-signal-gain of 20.4.

article

74 Astaxanthin Pretreatment Attenuates Burn Induced Heart Injury in Rats

K. Morinaga, K. Kawai, J. Oda, S. Mishima

Annals of Emergency Medicine > 2017 > 70 > 4(S) > S31

article

Cosmic ray oriented performance studies for the JEM-EUSO first level trigger

G. Abdellaoui, S. Abe, A. Acheli, J.H. Adams, more

Nuclear Instruments and Methods in Physics Research Section A: Accelerators,... > 2017 > 866 > C > 150-163

JEM-EUSO is a space mission designed to investigate Ultra-High Energy Cosmic Rays and Neutrinos ( E > 5 ⋅ 1 0 19 eV ) from the International Space Station (ISS). Looking down from above its wide angle telescope is able to observe their air showers and collect such data from a very wide area. Highly specific trigger algorithms are needed to drastically reduce the data load in the presence...

article

Meteor studies in the framework of the JEM-EUSO program

G. Abdellaoui, S. Abe, A. Acheli, J.H. Adams, more

Planetary and Space Science > 2017 > 143 > C > 245-255

We summarize the state of the art of a program of UV observations from space of meteor phenomena, a secondary objective of the JEM-EUSO international collaboration. Our preliminary analysis indicates that JEM-EUSO, taking advantage of its large FOV and good sensitivity, should be able to detect meteors down to absolute magnitude close to 7. This means that JEM-EUSO should be able to record a statistically...

article

Effect the sperm selection magnification (400x vs 1,200x) on fertilization results and embryo development in human Piezo-ICSI

K.K. Hiraoka, Y. Otsuka, T. Ishikawa, K. Kawai, more

Fertility and Sterility > 2017 > 108 > 3(S) > e147

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Search results for: K. Kawai

The vomeronasal system in semiaquatic beavers

Utility of computed tomography and ¹⁸F‐fluorodeoxyglucose with positron emission tomography/computed tomography for distinguishing appendiceal mucocele caused by mucinous adenocarcinoma from other pathologies

Pleiotropy in the Genetic Predisposition to Rheumatoid Arthritis: A Phenome‐Wide Association Study and Inverse Variance–Weighted Meta‐Analysis

Effects of preceding endoscopic treatment on laparoscopic surgery for early rectal cancer

Vascular anatomy of the splenic flexure, focusing on the accessory middle colic artery and vein

Incidence of and risk factors for lymphocele formation after lateral pelvic lymph node dissection for rectal cancer: a retrospective study

The impact of indocyanine-green fluorescence imaging on intraluminal perfusion of a J-pouch

3D printed model-based simulation of laparoscopic surgery for descending colon cancer with a concomitant abdominal aortic aneurysm

Obstruction is associated with perineural invasion in T3/T4 colon cancer

Variants in BMI‐Associated Genes and Adrenergic Genes are not Associated with Gestational Weight Trajectory

Cranial-first approach for laparoscopic surgery with splenic flexure mobilization

Evaluation of the vascular anatomy of the left‐sided colon focused on the accessory middle colic artery: a single‐centre study of 734 patients

Prognostic impact of interhospital variation in adjuvant chemotherapy for patients with Stage II/III colorectal cancer: a nationwide study

Diagnostic value of FDG-PET/CT for lateral pelvic lymph node metastasis in rectal cancer treated with preoperative chemoradiotherapy

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

64J output energy in 10ns pulse from cryogenic Yb:YAG ceramics laser

74 Astaxanthin Pretreatment Attenuates Burn Induced Heart Injury in Rats

Cosmic ray oriented performance studies for the JEM-EUSO first level trigger

Meteor studies in the framework of the JEM-EUSO program

Effect the sperm selection magnification (400x vs 1,200x) on fertilization results and embryo development in human Piezo-ICSI

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