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| 1 | Clinical significance of type V_I pit pattern subclassification in determining the depth of invasion of colorectal neoplasms显示文摘AIM: To clarify whether subclassification of the type VI pit pattern on the basis of magnifying colonoscopy findings is useful in determining the type and depth of invasion of colorectal neoplasms.METHODS: We retrospectively analyzed 272 colorectal neoplasms (117 dysplasias and 155 submucosal invasive carcinomas; 228 patients) with a type V pit pattern [type VI, n = 202; type VN, n = 70 (Kudo and Tsuruta classification system)]. We divided lesions with a type VI pit pattern into two subclasses, mildly irregular lesions and severely irregular lesions, according to the prominent and detailed magnifying colonoscopy findings. We examined the relation between these two subclasses and histology/invasion depth.RESULTS: One hundred and four lesions (51.5%) were judged to be mildly irregular, and 98 lesions (48.5%) were judged to be severely irregular. Ninety-seven (93.3%) mildly irregular lesions showed dysplasias or submucosal invasion of less than 1000 μm (SM < 1000 μm). Fifty-five (56.1%) severely irregular lesions showed submucosal invasion equal to or deeper than 1000 μm (SM ≥ 1000 μm). Mild irregularity was found significantly more often in dysplasias or lesions with SM < 1000 μm than in lesions with SM ≥ 1000 μm (P < 0.01).CONCLUSION: Subclassification of the type VI pit pattern is useful for identifying dysplasias or lesions with SM < 1000 μm. | Hiroyuki Kanao Shinji Tanaka Shiro Oka Iwao Kaneko Shigeto Yoshida Koji Arihiro Masaharu Yoshihara Kazuaki Chayama | 2008 | World Journal of Gastroenterology2008，14，2： | 15 |
| 2 | Exercise-induced oxidative stress:Friend or foe?显示文摘The first report demonstrating that prolonged endurance exercise promotes oxidative stress in humans was published more than 4 decades ago.Since this discovery,many ensuing investigations have corroborated the fact that muscular exercise increases the production of reactive oxygen species(ROS)and results in oxidative stress in numerous tissues including blood and skeletal muscles.Although several tissues may contribute to exercise-induced ROS production,it is predicted that muscular contractions stimulate ROS production in active muscle fibers and that skeletal muscle is a primary source of ROS production during exercise.This contraction-induced ROS generation is associated with(1)oxidant damage in several tissues(e.g.,increased protein oxidation and lipid peroxidation),(2)accelerated muscle fatigue,and(3)activation of biochemical signaling pathways that contribute to exercise-induced adaptation in the contracting muscle fibers.While our understanding of exercise and oxidative stress has advanced rapidly during the last decades,questions remain about whether exercise-induced increases in ROS production are beneficial or harmful to health.This review addresses this issue by discussing the site(s)of oxidant production during exercise and detailing the health consequences of exercise-induced ROS production. | Scott K.Powers Rafael Deminice Mustafa Ozdemir Toshinori Yoshihara Matthew P.Bomkamp Hayden Hyatt | 2020 | Journal of Sport and Health Science2020，9，5： | 13 |
| 3 | Strategy for treatment of nonerosive reflux disease in Asia显示文摘The paper is to review the clinical and pathophysiologic differences between of nonerosive reflux disease (NERD) and reflux esophagitis (RE), and to propose a treatment strategy for NERD, especially for patients in Asia. A Medline search was performed regarding the clinical and pathophysiologic differences between NERD and RE, and treatment of NERD and RE. The characteristics of NERD patients in Asia are as follows: (1) high proportion of female patients, (2) low frequency of hiatal hernia, (3) high frequency of H pylori infection, (4) severe glandular atrophy of the gastric mucosa, and (5) frequent resistance to proton pump inhibitor (PPI) therapy. In Asian NERD patients, exposure of the esophagus to acid is not increased, and esophageal motility is normal. These characteristics are similar to those of patients in Western countries. Our recommended first-choice treatment is administration of PPI in combination with a prokinetic agent. However, at present, because there is limited evidence regarding effective treatments for NERD, it is best to try several different treatment strategies to find the best treatment for each patient. | Toru Hiyama Masaharu Yoshihara Shinji Tanaka Ken Haruma Kazuaki Chayama | 2008 | World Journal of Gastroenterology2008，14，20： | 10 |
| 4 | Defensive medicine practices among gastroenterologists in Japan显示文摘AIM: To clarify the prevalence of defensive medicine and the specific defensive medicine practices among gastro-enterologists in Japan.METHODS: A survey of gastroenterologists in Hiroshi-ma, Japan, was conducted by mail in March 2006. The number of gastroenterologists reporting defensive medi-cine behaviors or changes in their scope of practice and the reported defensive medicine practices, i.e., assurance and avoidance behaviors, were examined.RESULTS: A total of 131 (77%) out of 171 gastroenter-ologists completed the survey. Three (2%) respondents were sued, and most respondents (96%) had liability insurance. Nearly all respondents (98%) reported prac-ticing defensive medicine. Avoidance behaviors, such as avoiding certain procedures or interventions and avoiding caring for high-risk patients, were very common (96%). Seventy-five percent of respondents reported often avoiding certain procedures or interventions. However, seasoned gastroenterologists (those in practice for more than 20 years) adopted avoidance behaviors significantly less often than those in practice for less than 10 years. Assurance behaviors, i.e., supplying additional services of marginal or no medical value, were also widespread (91%). Sixty-eight percent of respondents reported that they sometimes or often referred patients to other spe-cialists unnecessarily.CONCLUSION: Defensive medicine may be highly prev-alent among gastroenterologists throughout Japan, withpotentially serious implications regarding costs, access, and both technical and interpersonal quality of care. | Toru Hiyama Masaharu Yoshihara Shinji Tanaka Yuji Urabe Yoshihiko Ikegami Tatsuma Fukuhara Kazuaki Chayama | 2006 | World Journal of Gastroenterology2006，12，47： | 7 |
| 5 | Advantage of endoscopic submucosal dissection compared with EMR for early gastric cancer显示文摘 | Shiro Oka Shinji Tanaka Iwao Kaneko Ritsuo Mouri Mayuko Hirata Toru Kawamura Masaharu Yoshihara Kazuaki Chayama | 2006 | Gastrointestinal Endoscopy2006，，6： | 6 |
| 6 | Intraoperative ultrasound as an educational guide for laparoscopic biliary surgery显示文摘AIM: To analyze the efficacy of routine intraoperative ultrasound (IOUS) as a guide for understanding biliary tract anatomy, to avoid bile duct injury (BDI) after laparoscopic cholecystectomy (LC), as well as any burden during the learning period. METHODS: A retrospective analysis was performed using 644 consecutive patients who underwent LC from 1991 to 2006. An educational program with the use of IOUS as an operative guide has been used in 276 cases since 1998. RESULTS: IOUS was highly feasible even in patients with high-grade cholecystitis. No BDI was observed after the introduction of the educational program, despite 72% of operations being performed by inexperienced surgeons. Incidences of other morbidity, mortality, and late complications were comparable before and after the introduction of routine IOUS. However, the operation time was significantly extended after the educational program began (P < 0.001), and the grade of laparoscopic cholecystitis (P = 0.002), use of IOUS (P = 0.01), and the experience of the surgeons (P = 0.05) were significant factors for extending the length of operation. CONCLUSION: IOUS during LC was found to be a highly feasible modality, which provided accurate, real- time information about the biliary structures. Theeducational program using IOUS is expected to minimize the incidence of BDI following LC, especially when performed by less-skilled surgeons. | Kenichi Hakamada Shunji Narumi Yoshikazu Toyoki Masaki Nara Motonari Oohashi Takuya Miura Hiroyuki Jin Syuichi Yoshihara Michihiro Sugai Mutsuo Sasaki | 2008 | World Journal of Gastroenterology2008，14，15： | 6 |
| 7 | Value of a new stick-type rapid urine test for the diagnosis of Helicobacter pylori infection in the Vietnamese population显示文摘AIM:To assess the value of a new test for the diagnosis of Helicobacter pylori(H.pylori) infection,Rapirun H.pylori Antibody Stick(Rapirun Stick),in a Vietnamese population.METHODS:Eligible patients without previous history of H.pylori eradication were recruited.Rapid urease test(RUT) and histologic examination were used to diagnose the H.pylori infection.Patients were considered H.pylori positive when the RUT results were positive and/or the bacteria were detected histologically.Rapirun Stick tests were performed using urine samples,and the results were compared with the other 2 methods.RESULTS:We enrolled 200 patients with a mean age of 36(range,18-76) years.There were 116 females and 84 males.Of the 200 patients,111(55.5%) were diagnosed as being H.pylori positive.The sensitivity,specificity,and accuracy of the Stick test were 84.7%,89.9%,and 87.0%,respectively.There were 17(8.5%) falsenegative patients and 9(4.5%) false-positive patients.CONCLUSION:The Rapirun Stick test has high sensitivity,specificity,and accuracy for the diagnosis of H.pylori infection in the Vietnamese population.The test can be clinically applied in Vietnamese populations. | Duc T Quach Toru Hiyama Fumio Shimamoto Quang D Le Linh X Ho Nhu HT Vu Masaharu Yoshihara Naomi Uemura | 2014 | World Journal of Gastroenterology2014，20，17： | 4 |
| 8 | 脊髓小胶质细胞群参与神经病理性疼痛的缓解和复发显示文摘神经病理性疼痛通常由损伤和影响躯体感觉系统的疾病所致。虽然疼痛的发展已经得到了很好地研究,但疼痛恢复机制仍不清楚。在该研究中,研究者发现表达 CD11c 的脊髓小胶质细胞出现在神经损伤引起的疼痛超敏反应行为的发展之后。脊髓 CD11c^(+)小胶质细胞缺失的神经损伤小鼠不能从这种超敏反应中自发恢复。脊髓 CD11c^(+)小胶质细胞表达胰岛素样生长因子-1 (IGF1),IGF1 信号的干扰会再现疼痛恢复的障碍。在疼痛恢复的小鼠中,CD11c^(+)小胶质细胞的缺失或 IGF1 信号的中断均会导致疼痛超敏反应的复发。该研究揭示了神经病理性疼痛缓解和复发的一种新机制,为神经病理性疼痛治疗策略提供了潜在的靶标。 | 张晴(译) 吉海旺(译) 唐宗湘(校) Kohno K Shirasaka R Yoshihara K | 2022 | 中国疼痛医学杂志2022，28，8： | 4 |
| 9 | Distribution of HBV genotypes among HBV carriers in Benin:phylogenetic analysis and virological characteristics of HBV genotype E显示文摘AIM: To determine the distribution of Hepatitis B virus (HBV) genotypes in Benin, and to clarify the virological characteristics of the dominant genotype.METHODS: Among 500 blood donors in Benin, 21 HBsAg-positive donors were enrolled in the study. HBV genotypes were determined by enzyme immunoassay and restriction fragment length polymorphism. Complete genome sequences were determined by PCR and direct sequencing.RESULTS: HBV genotype E (HBV/E) was detected in 20/21 (95.2%), and HBV/A in 1/21 (4.8%). From the age-specific prevalence of HBeAg to anti-HBe seroconversion (SC) in 19 HBV/E subjects, SC was estimated to occur frequently in late teens in HBV/E.The comparison of four complete HBV/E genomes from HBeAg-positive subjects in this study and five HBV/E sequences recruited from the database revealed that HBV/E was distributed throughout West Africa with very low genetic divers ity (nucleotide homology 96.7-99.2%).Based on the sequences in the basic core promoter (BCP)to precore region of the nine HBV/E isolates compared to those of the other genotypes, a nucleotide substitution in the BCP, G1757A, was observed in HBV/E.CONCLUSION: HBV/E is predominant in the Republic of Benin, and SC is estimated to occur in late teens in HBV/E. The specific nucleotide substitution G1757A in BCP, which might influence the virological characteristics,is observed in HBV/E. | Kei Fujiwara Yasuhito Tanaka Etsuro Orito Tomoyoshi Ohno Takanobu Kato Kanji Sugihara Izumi Hasegawa Mayumi Sakurai Kiyoaki Ito Atsushi Ozasa Yuko Sakamoto Isao Arita Ahmed El-Gohary Agossou Benoit Sophie I Ogoundele-Akplogan Namiko Yoshihara Ryuzo Ueda Masashi Mizokami | 2005 | World Journal of Gastroenterology2005，11，41： | 3 |
| 10 | Global histone modification of H3K27 correlates with the outcomes in patients with metachronous liver metastasis of colorectal cancer显示文摘 | H. Tamagawa T. Oshima M. Numata N. Yamamoto M. Shiozawa S. Morinaga Y. Nakamura M. Yoshihara Y. Sakuma Y. Kameda M. Akaike N. Yukawa Y. Rino M. Masuda Y. Miyagi | 2013 | European Journal of Surgical Oncology2013，，6： | 2 |
| 11 | Characteristics of Metachronous Gastric Tumors after Endoscopic Submucosal Dissection for Gastric Intraepithelial Neoplasms显示文摘 | Tomoyuki Boda Masanori Ito Shiro Oka Yoko Kitamura Norifumi Numata Yoji Sanomura Taiji Matsuo Shinji Tanaka Masaharu Yoshihara Koji Arihiro Kazuaki Chayama Sergio Morini | 2014 | Gastroenterology Research and Practice2014，，： | 2 |
| 12 | Advantage of endoscopic submucosal dissection compared with EMR for early gastric cancer显示文摘 | Shiro Oka Shinji Tanaka Iwao Kaneko Ritsuo Mouri Mayuko Hirata Toru Kawamura Masaharu Yoshihara Kazuaki Chayama | 2006 | Gastrointestinal Endoscopy2006，，6： | 2 |
| 13 | Low virological response and high relapse rates in hepatitis C genotype 1 patients with advanced fibrosis despite adequate therapeutic dosing显示文摘 | Wendy S.C. Cheng Stuart K. Roberts Geoffrey McCaughan William Sievert Martin Weltman Darrell Crawford William Rawlinson Philippa S. Marks James Thommes Bishoy Rizkalla Motoko Yoshihara Gregory J Dore | 2010 | Journal of Hepatology2010，，4： | 2 |
| 14 | Reduction in gastric cancer mortality by screening based on serum pepsinogen concentration: A case-control study显示文摘 | Masaharu Yoshihara Toru Hiyama Shigeto Yoshida Masanori Ito Shinji Tanaka Yoshiyuki Watanabe Ken Haruma | 2007 | Scandinavian Journal of Gastroenterology2007，，6： | 2 |
| 15 | An Intravoxel Incoherent Motion Diffusion-Weighted Imaging Study of Prostate Cancer显示文摘 | Hiroshi Shinmoto Chiharu Tamura Shigeyoshi Soga Eisuke Shiomi Nobuyuki Yoshihara Tatsumi Kaji Robert V. Mulkern | 2012 | American Journal of Roentgenology2012，，： | 2 |
| 16 | The variations in the immunologic features and interleukin-6 levels for the surgical treatment of cardiac myxomas显示文摘 | Yokomuro H Yoshihara K Watanabe Y | 2007 | Surg Today2007，37，9： | 1 |
| 17 | Effects of PSK on T and Dendritic Ceils Differentiation in Gastric or Colorectal Cancer Patients 显示文摘 | Kanazawa M Yoshihara K Abe H | 2005 | Antieancer Res2005，25，： | 1 |
| 18 | Fault diagnosis of inside wall of blast furnace based on time map of received reflectedwaves using ultrasonic sensors 显示文摘 | Tanaka S Yoshihara K | 1999 | Transactions of the Society of Instrument and Control Engineers1999，35，8： | 1 |
| 19 | New aspects of Cadmium as en- docrine disruptor 显示文摘 | Takiguehi M Yoshihara S | 2006 | Environmental Science2006，13，2： | 1 |
| 20 | Cis- regulatory elements responsible for quantitative regulation of the rice seed storage protein glutelin GIuA - 3 gene显示文摘 | Toshihiro Yoshihara Fumio Takaiwa | 1996 | Plant Cell Physiol1996，37，1： | 1 |
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