10 results on '"Kei Hayashi"'
Search Results
2. Endoscopic mucosal resection using a ligation device for duodenal neuroendocrine tumors: a simple method.
- Author
-
Yasuhiro Inokuchi, Kei Hayashi, Yoshihiro Kaneta, Yoichiro Okubo, Mamoru Watanabe, Mitsuhiro Furuta, Nozomu Machida, and Shin Maeda
- Subjects
- *
DUODENAL tumors , *DIGESTIVE system endoscopic surgery , *PATIENT satisfaction , *TREATMENT effectiveness , *NEUROENDOCRINE tumors , *INTESTINAL mucosa , *PROGRESSION-free survival , *LIGATURE (Surgery) , *OVERALL survival , *EVALUATION ,DIGESTIVE organ surgery - Abstract
Introduction: Duodenal neuroendocrine tumors (DNETs) smaller than 1 cm in diameter, without invasion to the muscularis propria, have a low risk of metastasis. Therefore, DNETs are frequently resected endoscopically. However, among the various procedures, the best fit for DNET in terms of feasibility, effectiveness, and simplicity is unclear. Methods: Patients with DNET who underwent endoscopic submucosal resection using a ligation device (ESMR-L) at Kanagawa Cancer Center between May 2003 and December 2020 were studied retrospectively to evaluate clinical characteristics and short-term and long-term outcomes. Results: Eleven consecutive patients with 12 lesions were treated with 12 sessions of ESMR-L. Lesions were discovered in patients at a median age of 68 (range, 50-83) years. One patient had two lesions at the time of the initial ESMR-L session. Eleven of the 12 lesions (91.7%) existed in the duodenal bulb, of which 10 (83.3%) were in the anterior wall, and the remaining one (8.3%) existed in the descending part of the duodenum. The en bloc and R0 resection rates were 100% and 75%, respectively. The rates of bleeding and perforation were both 0%. Among the four patients who had non-curative resections, two patients underwent additional surgery after ESMR-L. One patient had a local remnant tumor, and the other had lymph node metastasis. In cases of local remnant tumors, the vertical margin was positive in the ESMR-L specimen. In that case, ligation by the O-ring was insufficient, retrospectively. All patients had no recurrence during the median follow-up period of 5.7 years. Discussion: ESMR-L was the best fit for DNET within the indications for endoscopic resection. It is a simple procedure that enables easy and complete resection of DNETs without complications. [ABSTRACT FROM AUTHOR]
- Published
- 2022
- Full Text
- View/download PDF
3. Making Traditional Japanese Distilled Liquor, Shochu and Awamori, and the Contribution of White and Black Koji Fungi.
- Author
-
Kei Hayashi, Yasuhiro Kajiwara, Taiki Futagami, Masatoshi Goto, and Hideharu Takashita
- Subjects
- *
SHOCHU , *KOJI , *ASPERGILLUS awamori , *CITRIC acid , *GENOME editing , *DISTILLATION - Abstract
The traditional Japanese single distilled liquor, which uses koji and yeast with designated ingredients, is called “honkaku shochu.” It is made using local agricultural products and has several types, including barley shochu, sweet potato shochu, rice shochu, and buckwheat shochu. In the case of honkaku shochu, black koji fungus (Aspergillus luchuensis) or white koji fungus (Aspergillus luchuensis mut. kawachii) is used to (1) saccharify the starch contained in the ingredients, (2) produce citric acid to prevent microbial spoilage, and (3) give the liquor its unique flavor. In order to make delicious shochu, when cultivating koji fungus during the shochu production process, we use a unique temperature control method to ensure that these three important elements, which greatly affect the taste of the produced liquor, are balanced without any excess or deficiency. This review describes in detail the production method of honkaku shochu, a distilled spirit unique to Japan and whose market is expected to expand worldwide, with special attention paid to the koji fungi cultivation step. Furthermore, we describe the history of the koji fungi used today in the production of shochu, and we provide a thorough explanation of the characteristics of each koji fungi. We also report the latest research progress on this topic. [ABSTRACT FROM AUTHOR]
- Published
- 2021
- Full Text
- View/download PDF
4. Laughter and Subjective Health Among Community-Dwelling Older People in Japan.
- Author
-
Kei Hayashi, Ichiro Kawachi, Tetsuya Ohira, Katsunori Kondo, Kokoro Shirai, and Naoki Kondo
- Published
- 2015
- Full Text
- View/download PDF
5. Evaluation of the radiographic infrapatellar fat pad sign of the contralateral stifle joint as a risk factor for subsequent contralateral cranial cruciate ligament rupture in dogs with unilateral rupture: 96 cases (2006-2007).
- Author
-
Fuller, Mark C., Kei Hayashi, Bruecker, Kenneth A., Holsworth, Ian G., Sutton, Jessie S., Kass, Philip H., Kantrowitz, Brett J., and Kapatkin, Amy S.
- Subjects
- *
CRUCIATE ligament injuries , *OSTEOARTHRITIS , *TREATMENT of dogs' injuries , *HEALTH risk assessment , *JOINT radiography , *VETERINARY orthopedics - Abstract
Objective--To determine prevalence ot the contralateral radiographic infrapatellar fat pad sign and contralateral radiographic degenerative sign (degenerative changes) and evaluate both signs as risk factors for subsequent contralateral cranial cruciate ligament (CrCL) rup-ture in dogs with unilateral CrCL rupture. Design--Retrospective cohort study. Animals--96 dogs with unilateral CrCL rupture and 22 dogs with bilateral CrCL rupture. Procedures--Dogs with unilateral CrCL rupture were classified as having normal (n = 84) or abnormal (12) contralateral stifle joints on the basis of joint palpation. Associations be-tween potential predictive variables and rates of subsequent contralateral CrCL rupture were evaluated. Results--Of the 84 dogs with unilateral CrCL rupture in which the contralateral stifle joint was palpably normal, 29 (34.5%) had a contralateral fat pad sign and 31 (36.9%) had a degenerative sign. All dogs with unilateral CrCL rupture in which the contralateral stifle joint was palpably abnormal had a contralateral fat pad sign and degenerative sign. The contralateral fat pad sign was the most important risk factor for subsequent rupture of the contralateral CrCL. For dogs with unilateral CrCL rupture and palpably normal contralateral stifle joint with and without a contralateral fat pad sign, median time to subsequent rupture was 421 and 1,688 days, respectively, and the 3-year probability of subsequent rupture was 85.3% and 24.9%, respectively. Conclusions and Clinical Relevance--Bilateral stifle joint radiography should be per-formed for all dogs with CrCL rupture. Bilateral stifle joint arthroscopy should be considered for dogs with a contralateral fat pad sign. [ABSTRACT FROM AUTHOR]
- Published
- 2014
- Full Text
- View/download PDF
6. In vitro colonic fermentation characteristics of barley-koji differ from those of barley.
- Author
-
Ryuji Nagata, Minami Morioka, Naoki Fukuma, Kei Hayashi, Akihiko Iwami, Kyu-Ho Han, and Michihiro Fukushima
- Subjects
- *
BARLEY , *SHORT-chain fatty acids , *FERMENTATION , *HUMAN microbiota , *RUMEN fermentation , *CELLULOSE - Abstract
Barley-koji is prepared by inoculating barley, a beneficial prebiotic source, with the fungi Aspergillus luchuensis mut. kawachii. In this study, the prebiotic effects of barley-koji on human colonic microbiota were evaluated in vitro compared with barley, using pig feces. The enzyme-resistant fraction of the following sample groups each was added to respective fermenters: cellulose, barley (Commander and ß104), and barley-koji (Commander-koji and ß104-koji). Short-chain fatty acid and ammonia-nitrogen production increased and decreased, respectively, in barley-koji and barley groups. Furthermore, the propionate concentration increased in the barley group, showing a positive correlation with the abundance of the genus Dialister. In the barley-koji group, however, acetate and n -butyrate concentrations increased during the early stages of incubation, and the relative abundance of the genus Megasphaera was higher than those of the other genera. Therefore, this study demonstrated that barley-koji might possess beneficial physiological properties for colonic fermentation, which differ from those of barley. [ABSTRACT FROM AUTHOR]
- Published
- 2022
- Full Text
- View/download PDF
7. Al insertion and additive effects on the thermoelectric properties of yttrium boride.
- Author
-
Satofumi Maruyama, Anastasiia Prytuliak, Yuzuru Miyazaki, Kei Hayashi, Tsuyoshi Kajitani, and Takao Mori
- Subjects
- *
INSERTION reactions (Chemistry) , *ADDITIVE functions , *THERMOELECTRICITY , *YTTRIUM , *ALUMINUM - Abstract
The aluminoboride YxAlyB14 (x~0.57, 0.41 ≤ y ≤ 0.63) has been found to show striking p-n control of the thermoelectric properties through variations of the y occupancy of the Al site. The effect of Al was investigated in further extremes. Polycrystalline samples of Al-free YxB14(x~0.55; "YB25") were successfully synthesized in sufficient amounts for bulk spark plasma sintering (SPS) samples and their thermoelectric properties were investigated. Y0.56Al0.57B14 was also prepared in comparison, and further Al was added to the samples through SPS treatment. We observed that Y0.55B14 exhibits large positive Seebeck coefficients, ~1000 μV K–1, around room temperature and the absolute value of the Seebeck coefficient largely decreases with increase of temperature while that of Y0.56Al0.57B14 is proportional to T–1/2, indicating a strong effect of Al on the electronic structure around the Fermi level. Y0.55B14 was found to be strongly disordered with a relatively low thermal conductivity and short localization length of 0.65Å which is close to that previously determined for the disordered and thermally glass-like compound YB66. Occupancy of Al could not be increased further for the Al-rich sample, although Al was discovered to act as a sintering aid to enhance density and ZT could be significantly improved by 50%. [ABSTRACT FROM AUTHOR]
- Published
- 2014
- Full Text
- View/download PDF
8. Magnetic resonance imaging and histologic features of the supraspinatus tendon in nonlame dogs.
- Author
-
Pownder, Sarah L., Potter, Hollis G., Koff, Matthew F., Caserto, Brian G., Kei Hayashi, and Norman, Mary Lou
- Subjects
- *
MAGNETIC resonance imaging , *SUPRASPINATUS muscles , *DOGS' injuries , *TERES minor , *SHOULDER joint , *IATROGENIC diseases - Abstract
OBJECTIVE To characterize the MRI and histologic features of the supraspinatus tendon in nonlame dogs. ANIMALS 7 cadavers (14 shoulder joints) of nonlame 2-year-old sexually intact male Beagles. PROCEDURES Multiple MRI fluid-sensitive pulse sequences were obtained for both shoulder joints of each cadaver, and the thickness, volume, and signal intensity of each supraspinatus tendon were assessed. After MRI scanning was complete, the shoulder joints were processed for histologic examination. Tissue specimens were stained with various stains to determine tendon morphology and composition. Histologic and MRI findings were correlated and described. RESULTS All supraspinatus tendons had a trilaminar appearance on sagittal and transverse MRI images, which was characterized by a thick, hyperintense center layer (central substance) sandwiched between thin hypointense superficial and deep margins. The mean ± SD central substance-tosuperficial margin and central substance-to-deep margin thickness ratios were 8.4 ± 1.2 and 9.0 ± 0.9, respectively; supraspinatus tendon-to-triceps brachii muscle signal intensity ratio was 1.3 ± 0.2; and tendon volume was 445 ± 20 mm3. The superficial and deep margins histologically resembled other tendons with highly ordered collagen fibers. The central substance was comprised of water-rich glycosaminoglycans interspersed among haphazardly arranged collagen bundles. CONCLUSIONS AND CLINICAL RELEVANCE Results indicated histologically normal canine supraspinatus tendons have a trilaminar appearance on MRI images. In dogs, a diagnosis of supraspinatus tendinosis should not be based solely on the tendon having a hyperintense signal on MRI images; other MRI evidence of shoulder joint disease and diagnostic findings are necessary to support such a diagnosis. [ABSTRACT FROM AUTHOR]
- Published
- 2018
- Full Text
- View/download PDF
9. Retrospective study of factors associated with surgical site infection in dogs following tibial plateau leveling osteotomy.
- Author
-
Lopez, Daniel J., Van Deventer, Gretchen M., Krotscheck, Ursula, Aryazand, Yazdan, Mcconkey, Marina J., Kei Hayashi, Todhunter, Rory J., and Hayes, Galina M.
- Subjects
- *
SURGICAL site infections , *DOG surgery , *TIBIAL plateau fractures , *OSTEOTOMY , *COHORT analysis , *INJURY risk factors ,VETERINARY surgery complications - Abstract
OBJECTIVE To identify risk factors associated with surgical site infection (SSI) in dogs following tibial plateau leveling osteotomy (TPLO). DESIGN Retrospective cohort study. ANIMALS 320 dogs that underwent unilateral o r bilateral TPLO (n = 405 procedures) between 2007 and 2015 and were reexamined by a veterinarian at least once ≥ 8 weeks after the procedure. PROCEDURES Data were extracted from medical records regarding signalment, TPLO procedure details, medical history of dermatitis, and SSI status. Logistic regression was performed to identify factors associated with SSI development. RESULTS An SSI developed following 34 (8.4%; 95% confidence interval [Cl], 6.1% to 11.5%) procedures. Prophylactic antimicrobial administration was provided following 36.8% (n = 149) of procedures. For 71 (17.5%) procedures, the dog had dermatitis at the time of surgery; 12 of these procedures involved dermatitis at the surgical site. The incidence of SSI following the 12 procedures fo r dogs with dermatitis at the surgical site was 16.7% (2/12 [95% Cl, 3.3% to 54.3%]) and was 10.2% (6/59 [95% Cl, 4.5% to 21.3%]) for dogs with dermatitis elsewhere; however, these differences in incidence were not significant. On multivariable analysis, German Shepherd Dogs (vs other breeds), meniscectomy (vs no meniscectomy), and attending surgeon having performed ≤ 20 (vs > 20) procedures during the study period were associated with increased odds of SSI. CONCLUSIONS AND CLINICAL RELEVANCE SSI following TPLO was associated with the German Shepherd breed, meniscectomy, and surgeon. Prospective studies are needed to investigate the mechanisms underlying these associations. [ABSTRACT FROM AUTHOR]
- Published
- 2018
- Full Text
- View/download PDF
10. Safety and immunomodulatory effects of allogeneic canine adipose-derived mesenchymal stromal cells transplanted into the region of the lacrimal gland, the gland of the third eyelid and the knee joint.
- Author
-
SHIN AE PARK, REILLY, CHRISTOPHER M., JOSHUA A. WOOD, DAI JUNG CHUNG, CARRADE, DANIELLE D., DEREMER, SARAH L., SERAPHIN, REBECCA L., CLARK, KAITLIN C., ZWINGENBERGER, ALLISON L., BORJESSON, DORI L., KEI HAYASHI, RUSSELL, PAUL, and MURPHY, CHRISTOPHER J.
- Subjects
- *
STEM cell transplantation , *CELLULAR therapy , *STROMAL cells , *IMMUNOLOGICAL adjuvants , *IMMUNOREGULATION , *CELL proliferation - Abstract
Background aims. Mesenchymal stromal cells (MSCs) have been extensively studied as a cellular therapeutic for various pathologic conditions. However, there remains a paucity of data regarding regional and systemic safety of MSC transplantations, particularly with multiple deliveries of allogeneic cells. The purpose of this study was to investigate the safety and systemic immunomodulatory effects of repeated local delivery of allogeneic MSCs into the region of the lacrimal gland, the gland of the third eyelid and the knee joint in dogs. Methods. Allogeneic adipose tissue-derived canine MSCs were delivered to the regions of the lacrimal gland and the third eyelid gland as well as in the knee joints of six healthy laboratory beagles as follows: six times with 1-week intervals for delivery to the lacrimal gland and the third eyelid gland regions and three to four times with 1- to 2-week intervals for intra-articular transplantations. Dogs were sequentially evaluated by clinical examination. At the conclusion of the study, dogs were humanely euthanized, and a complete gross and histopathologic examination of all organ systems was performed. Mixed leukocyte reactions were also performed before the first transplantation and after the final transplantation. Results. Clinical and pathologic examinations found no severe consequences after repeated MSC transplantations. Results of mixed leukocyte reactions demonstrated suppression of T-cell proliferation after MSC transplantations. Conclusions. This is the first study to demonstrate regional and systemic safety and systemic immunomodulatory effects of repeated local delivery of allogeneic MSCs in vivo. [ABSTRACT FROM AUTHOR]
- Published
- 2013
- Full Text
- View/download PDF
Catalog
Discovery Service for Jio Institute Digital Library
For full access to our library's resources, please sign in.