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Feasibility of gastric endoscopic submucosal dissection with continuous low-dose aspirin for patients receiving dual antiplatelet therapy

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World Journal of Gastroenterology 2019年第4期25卷 457-467页

作者： hideaki harada Satoshi Suehiro Daisuke Murakami Ryotaro Nakahara Takuya Nagasaka Tetsuro Ujihara Ryota Sagami Yasushi Katsuyama Kenji Hayasaka Yuji Amano Department of Gastroenterology New Tokyo Hospital Department of Endoscopy New Tokyo Hospital

BACKGROUND Endoscopic submucosal dissection(ESD) for gastric neoplasms during continuous low-dose aspirin(LDA) administration is generally acceptable according to recent guidelines. This retrospective study aimed to investigate the effect of continuous LDA on the postoperative bleeding after gastric ESD in patients receiving dual antiplatelet therapy(DAPT).AIM To investigate the feasibility of gastric ESD with continuous LDA in patients with *** A total of 597 patients with gastric neoplasms treated with ESD between January2010 and June 2017 were enrolled. The patients were categorized according to type of antiplatelet therapy(APT).RESULTS The postoperative bleeding rate was 6.9%(41/597) in all patients. Patients were divided into the following two groups: no APT(n = 443) and APT(n = 154). APT included single-LDA(n = 95) and DAPT(LDA plus clopidogrel, n = 59)subgroups. In the single-LDA and DAPT subgroups, 56 and 39 patients were received continuous LDA, respectively. The bleeding rate with continuous singleLDA(10.7%) was similar to that with discontinuous single-LDA(10.3%)(P >0.99). Although the bleeding rate with continuous LDA in patients receiving DAPT(23.1%) was higher than that with discontinuous LDA in patients receiving DAPT(5.0%), no significant difference was observed(P = 0.141).CONCLUSION The bleeding rate with continuous LDA in patients receiving DAPT was not statistically different from that with discontinuous LDA in patients receiving DAPT. Therefore, continuous LDA administration may be acceptable for ESD in patients receiving DAPT, although patients should be carefully monitored for possible bleeding.

关键词： Dual antiplatelet therapy Endoscopic submucosal dissection Low-dose aspirin Postoperative bleeding Thienopyridine

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Primary intraosseous squamous cell carcinoma of the mandible

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中国口腔颌面外科杂志 2008年第B5期6卷 62-63页

作者： Ken Omura Hiroyuki harada hideaki Hirai Department of Oral and Maxillofacial Surgery (Hiroaki Shirmmwto Ken Omura Hiroyuki Harada Hideaki Hirai) TokyoMedical and Dental University Tokyo 1138549 Japan

Purpose: Intraosseous carcinoma was defined as a squamous cell carcinoma arising within the mandible without connection to the oral mucosa。We analyzed clinicopathological findings of intraosseous squamous cell carcinoma of mandible。Patients: There were 13 patients who visited our department from April 2001 to November 2007。They were all males who ranged in age from 34 to 75 years。Eight patients had no lymph node metastasis, and 5 patients had lymph node metastasis。Distant metastasis was not found in all patients。Results: The chief complaint was swelling of mandible in 8 patients, and incomplete healing of extraction socket in 5 patients。Surgery underwent in 5 patients, surgery with radiation therapy in 3 patients, and surgery with radiation and chemotherapy in 5 patients。As surgical treatment for the primary lesion, segmental mandibulectomy was performed in 8 patients and hemimandibulectomy in 5 patients。In 2 patients, excision of skin was carried out in combination with mandibulectomy。The surgical defect was reconstructed with scapular osteocutaneous flap in 7 patients, fibular osteocutaneous flap in one patient and rectus abdominis myocutaneous flap in 5 patients。Ten patients were alive with no evidence of disease, one patient were alive with the disease and two patients died of the disease。Histopathologically, the carcinoma involved the mandibular canal in l0 cases。The carcinoma invaded the muscles around the mandible in 7 cases。Cervical lymph node metastasis was confirmed in 5 of 7 cases in which the carcinoma invaded the muscles。Conclusions: These results suggest that invasion of intraosseous carcinoma to the muscles around mandible is a possible factor of the cervical lymph node metastasis。

关键词：磷片细胞癌治疗方法下颚骨手术治疗

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Endoscopic submucosal dissection for small submucosal tumors of the rectum compared with endoscopic submucosal resection with a ligation device

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World Journal of Gastrointestinal Endoscopy 2017年第2期9卷 70-76页

作者： hideaki harada Satoshi Suehiro Daisuke Murakami Ryotaro Nakahara Takanori Shimizu Yasushi Katsuyama Yasunaga Miyama Kenji Hayasaka Shigetaka Tounou Department of Gastroenterology New Tokyo Hospital Department of Health Service Center Tokyo Medical and Dental University Second Division of Internal Medicine Teikyo University Chiba Medical Center

AIMTo evaluate the efficacy and safety of endoscopic submucosal dissection (ESD) for small rectal submucosal tumors (SMTs). METHODSBetween August 2008 and March 2016, 39 patients were treated with endoscopic submucosal resection with a ligation device (ESMR-L) (n = 21) or ESD (n = 18) for small rectal SMTs in this study. Twenty-five lesions were confirmed by histological evaluation of endoscopic biopsy prior to the procedure, and 14 lesions were not evaluated by endoscopic biopsy. The results for the ESMR-L group and the ESD group were retrospectively compared, including baseline characteristics and therapeutic outcomes. RESULTSThe rate of en bloc resection was 100% in both groups. Although the rate of complete endoscopic resection was higher in the ESD group than in the ESMR-L group (100% vs 95.2%), there were no significant differences between the two groups (P = 0.462). In one patient in the ESMR-L group with a previously biopsied tumor, histological complete resection with a vertical margin involvement of carcinoid tumor could not be achieved, whereas there was no incomplete resection in the ESD group. The mean length of the procedure was significantly greater in the ESD group than in the ESMR-L group (14.7 ± 6.4 min vs 5.4 ± 1.7 min, P vs 2.8 ± 1.5 d, P CONCLUSIONBoth ESMR-L and ESD were effective for treatment of small rectal SMTs. ESMR-L was simpler to perform than ESD and took less time.

关键词： Leiomyoma Lipoma Rectum Submucosal tumor Endoscopic submucosal resection with a ligation device Endoscopic submucosal dissection Carcinoid tumor

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Monogenic gene therapy for glaucoma and optic nerve injury

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Neural Regeneration Research 2025年第3期20卷 815-816页

作者： Chikako harada Xiaoli Guo Takayuki harada Visual Research Project Tokyo Metropolitan Institute of Medical ScienceTokyoJapan

The prevalence of glaucoma, the second leading cause of global blindness, is increasing due to aging populations. In glaucoma, degeneration of the optic nerve and retinal ganglion cells(RGCs) causes visual field defec... 详细信息

关键词： visual glaucoma degeneration

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Asking one mechanism in glial cells during neuroinflammation

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Neural Regeneration Research 2025年第4期20卷 1077-1078页

作者： Xiaoli Guo Chikako harada Takayuki harada Visual Research Project Tokyo Metropolitan Institute of Medical ScienceTokyoJapan

Multiple sclerosis(MS),which is characterized by inflammatory demyelination in the central nervous system(CNS),is the most common neurological disease in the young adult *** autoimmune encephalomyelitis(EAE),an animal model of MS,is often used in preclinical *** data indicate that in addition to immune cells such as T cells and dendritic cells,CNS resident microglia and astrocytes play important roles in demyelinating neuroinflammation(Healy et al.,2022).In particular,microglia are key immune-competent cells that can respond to environmental *** depletion of transforming growth factor-β-activated kinase 1,a mitogen-associated protein kinase kinase kinase,in microglia is reported to reduce CNS inflammation and diminish axonal and myelin damage *** suggests that elucidating the mechanisms of microglia-specific responses during pathologies may help in the development of treatments that reduce EAE/MS disease severity(Goldmann et al.,2013).

关键词： inflammation clinical

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MAVEN observation of magnetosonic waves in the Martian magnetotail region

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Earth and Planetary Physics 2024年第2期8卷 317-325页

作者： ShangChun Teng JiCheng Sun JiaWei Gao Y.harada Markus Fraenz DeSheng Han State Key Laboratory of Marine Geology School of Ocean and Earth ScienceTongji UniversityShanghai 200092China MNR Key Laboratory for Polar Science Polar Research Institute of ChinaShanghai 200136China Key Laboratory of Earth and Planetary Physics Institute of Geology and GeophysicsChinese Academy of SciencesBeijing 100029China College of Earth and Planetary Sciences University of Chinese Academy of SciencesBeijing 100049China Department of Geophysics Kyoto UniversityKyotoJapan Max-Planck-Institute for Solar System Research GoettingenGermany

Magnetosonic waves are an important medium for energy transfer in collisionless space *** waves have been widely investigated in the upstream of the bow shock at *** waves are believed to originate from pickup ions or reflected *** utilizing MAVEN spacecraft data,we have observed the occurrence of quasi-perpendicularly propagating magnetosonic emissions near the proton gyrofrequency in the Martian magnetotail *** plasma waves are associated with a significant enhancement of proton and oxygen *** excited magnetosonic waves could possibly heat the protons through resonance and facilitate the ionospheric plasma *** results could be helpful to better understand the Mars’magnetospheric dynamics and offer insights into possible energy redistribution between waves and plasma in the Martian nightside magnetosphere.

关键词： Martian magnetotail region magnetosonic waves proton escape

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Low skeletal muscle mass and high visceral adiposity are associated with recurrence of acute cholecystitis after conservative management:A propensity score-matched cohort study

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Hepatobiliary & Pancreatic Diseases International 2024年第1期23卷 64-70页

作者： Yudai Koya Michihiko Shibata Yuki Maruno Yoshitaka Sakamoto Shinji Oe Koichiro Miyagawa Yuichi Honma Masaru harada Department of Gastroenterology Kyushu Rosai HospitalMoji Medical Center3-1 HigashiminatomachiMoji-kuKitakyushu 801-8502Japan Third Department of Internal Medicine School of MedicineUniversity of Occupational and Environmental HealthKitakyushu 807-8555Japan Department of Surgery Kyushu Rosai Hospital Moji Medical CenterKitakyushu 801-8502Japan

Background:Recurrent acute cholecystitis(RAC)can occur after non-surgical treatment for acute cholecystitis(AC),and can be more severe in comparison to the first episode of *** skeletal muscle mass or adiposity have various effects in several *** aimed to clarify the relationship between RAC and body ***:Patients with AC who were treated at our hospital between January 2011 and March 2022 were *** psoas muscle mass and adipose tissue area at the third lumbar level were measured using computed tomography at the first episode of *** areas were divided by height to obtain the psoas muscle mass index(PMI)and subcutaneous/visceral adipose tissue index(SATI/VATI).According to median VATI,SATI and PMI values by sex,patients were divided into the high and low PMI *** performed propensity score matching to eliminate the baseline differences between the high PMI and low PMI groups and analyzed the cumulative incidence and predictors of ***:The entire cohort was divided into the high PMI(n=81)and low PMI(n=80)*** the propensity score-matched cohort there were 57 patients in each *** Kaplan-Meier analysis,the low PMI group and the high VATI group had a significantly higher cumulative incidence of RAC than their counterparts(log-rank P=0.001 and 0.015,respectively).In a multivariate Cox regression analysis,the hazard ratios of low PMI and low VATI for RAC were 5.250(95%confidence interval 1.083-25.450,P=0.039)and 0.158(95%confidence interval:0.026-0.937,P=0.042),***:Low skeletal muscle mass and high visceral adiposity were independent risk factors for RAC.

关键词： Acute cholecystitis Low skeletal muscle mass Recurrent acute cholecystitis Sarcopenia Visceral adiposity

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Nitrogen-based fertilizers differentially affect protist community composition in paddy field soils

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Soil Ecology Letters 2024年第3期6卷 35-44页

作者： Seda Ozer Bodur Solomon Oloruntoba Samuel Kazuki Suzuki Naoki harada Rasit Asiloglu Graduate School of Science and Technology Niigata UniversityNiigataJapan Department of Plant and Microbial Biology North Carolina State UniversityRaleighNCUSA Institute of Science and Technology Niigata UniversityNiigataJapan

Protists are one of the most diverse and dominant microbial groups and they play critical roles in the soil *** nitrogen fertilizers have a profound impact on protist communities,still less is known about how different nitrogen fertilizer types affect protist community composition in different soil *** we investigated the effects of six inorganic nitrogen fertilizers(urea,ammonium nitrate,ammonium sulfate,potassium nitrate,ammonium chloride,and diammonium hydrogen phosphate)and an organic fertilizer(a mixture of rice husk and cow manure)on protist community composition in three paddy field soils using a high-throughput sequencing *** effect of the fertilizers on the functional groups of protists,namely consumers(predators and decomposers),photoautotrophs,and parasites(plant pathogens and animal parasites)was also *** results showed that nitrogen fertilizers had distinctive effects on the beta diversity of the protists,while we also observed that the same fertilizer had slightly different effects depending on the soil *** and Rhizaria were the most affected protist taxonomical groups,while predatory protists were the main functional groups that were affected by nitrogen *** forest analysis showed that most of the fertilizer-affected protists were predators,among which Cercozoa was the most affected *** conclusion,our results provide important insights into the impact of nitrogen fertilizers on soil protist communities.

关键词： nitrogen fertilizer bottom-up paddy field predatory protist soil protist community

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Correlation between dose-volume parameters and rectal bleeding after 12 fractions of carbon ion radiotherapy for prostate cancer

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World Journal of Radiology 2024年第7期16卷 256-264页

作者： Takashi Ono Hiraku Sato Yuya Miyasaka Yasuhito Hagiwara Natsuko Yano Hiroko Akamatsu Mayumi harada Mayumi Ichikawa Department of Radiation Oncology Faculty of MedicineYamagata UniversityYamagata 990-9585Japan Department of Heavy Particle Medical Science Yamagata University Graduate School of Medical ScienceYamagata 990-9585Japan

BACKGROUND Carbon ion radiotherapy(CIRT)is currently used to treat prostate *** bleeding is a major cause of toxicity even with ***,to date,a correlation between the dose and volume parameters of the 12 fractions of CIRT for prostate cancer and rectal bleeding has not been ***,the clinical risk factors for rectal bleeding were absent after 12 fractions of *** To identify the risk factors for rectal bleeding in 12 fractions of CIRT for prostate *** Among 259 patients who received 51.6 Gy[relative biological effectiveness(RBE)],in 12 fractions of CIRT,15 had grade 1(5.8%)and nine had grade 2 rectal bleeding(3.5%).The dose-volume parameters included the volume(cc)of the rectum irradiated with at least x Gy(RBE)(Vx)and the minimum dose in the most irradiated x cc normal rectal volume(Dx).RESULTS The mean values of D6cc,D2cc,V10 Gy(RBE),V20 Gy(RBE),V30 Gy(RBE),and V40 Gy(RBE)were significantly higher in the patients with rectal bleeding than in those *** cutoff values were D6cc=34.34 Gy(RBE),D2cc=46.46 Gy(RBE),V10 Gy(RBE)=9.85 cc,V20 Gy(RBE)=7.00 cc,V30 Gy(RBE)=6.91 cc,and V40 Gy(RBE)=4.26 *** D2cc,V10 Gy(RBE),and V20 Gy(RBE)cutoff values were significant predictors of grade 2 rectal *** The above dose-volume parameters may serve as guidelines for preventing rectal bleeding after 12 fractions of CIRT for prostate cancer.

关键词： Carbon ion radiotherapy Prostate cancer Rectal bleeding Dose volume parameters Prevention

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Massive low-grade myxoid liposarcoma of the floor of the mouth:A case report and review of literature

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World Journal of Clinical Cases 2022年第34期10卷 12742-12749页

作者： Takuma Kugimoto Yuko Yamagata Toshimitsu Ohsako hideaki Hirai Naoto Nishii Kou Kayamori Tohru Ikeda Hiroyuki harada Department of Oral and Maxillofacial Surgical Oncology Division of Oral Health ScienceGraduate School of Medical and Dental SciencesTokyo Medical and Dental UniversityBunkyo-ku 113-8549TokyoJapan Department of Oral Pathology Division of Oral Health ScienceGraduate School of Medical and Dental SciencesTokyo Medical and Dental UniversityBunkyo-ku 113-8549TokyoJapan

BACKGROUND Oral liposarcoma is an extremely rare lesion that is often clinically misdiagnosed as a benign tumor due to its asymptomatic and indolent clinical ***,we report a case of massive low-grade myxoid liposarcoma(MLS)of the floor of the *** SUMMARY A 71-year-old man presented with a huge mass in the left floor of the mouth.A biopsy was performed,and a diagnosis of a myxoid tumor suspicious for lowgrade MLS or myxoma was ***-enhanced T1-weighted magnetic resonance imaging showed an intensely enhanced tumor lesion that occupies the left sublingual space and extends to the submandibular *** dissection,tumor resection,and reconstruction with a radial forearm flap were *** surgical specimen exhibited histologically low-grade *** in sarcoma(FUS,also known as TLS)and DNA damage-inducible transcript 3(DDIT3,also known as CHOP)break-apart was not detected in the fluorescence in situ hybridization *** tumor was completely encapsulated and did not require additional ***,no recurrence was reported 40 mo after *** We experienced an extremely rare,massive,low-grade MLS emerging from the floor of the ***,an MLS of the floor of the mouth lacks significant clinical findings and is often *** no FUS-DDIT3 fusion gene was detected,a low-grade MLS was ultimately diagnosed based on the histological findings.

关键词： Myxoid liposarcoma Floor of mouth Surgery Fluorescence in situ hybridization Sublingual space Case report

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