Atsushi Ishihara

ORCID: 0000-0003-4135-4107
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About
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Research Areas
  • Respiratory Support and Mechanisms
  • Kruppel-like factors research
  • Cholangiocarcinoma and Gallbladder Cancer Studies
  • Pancreatic and Hepatic Oncology Research
  • Long-Term Effects of COVID-19
  • COVID-19 Clinical Research Studies
  • Renal function and acid-base balance
  • Sarcoma Diagnosis and Treatment
  • Hepatocellular Carcinoma Treatment and Prognosis
  • Multiple and Secondary Primary Cancers
  • Gastrointestinal Tumor Research and Treatment
  • Electrolyte and hormonal disorders
  • Pediatric Hepatobiliary Diseases and Treatments
  • Neonatal Health and Biochemistry
  • Intensive Care Unit Cognitive Disorders
  • Anesthesia and Neurotoxicity Research
  • Healthcare Technology and Patient Monitoring
  • Hemodynamic Monitoring and Therapy
  • Colorectal Cancer Surgical Treatments
  • Intraocular Surgery and Lenses
  • Circular RNAs in diseases
  • Advanced Breast Cancer Therapies
  • Alcoholism and Thiamine Deficiency
  • Intraperitoneal and Appendiceal Malignancies
  • Soft tissue tumors and treatment

Gifu Prefectural General Medical Center
2022-2024

Suzuki (Japan)
2022

Osaka City University
2019-2021

Aizawa Hospital
2016

The University of Tokyo
2003-2005

Tokyo Medical and Dental University
2005

Gunma University
2004

Shinshu University
1986-1994

Aichi Gakusen University
1981-1984

Modulation of smooth muscle cell (SMC) phenotype plays a central role in neointima formation. We recently demonstrated that Am80, synthetic retinoic acid receptor alpha-specific agonist, inhibits the activity transcription factor KLF5, which is essential for formation after vascular injury. In present study, we aimed to further analyze mechanism by Am80 KLF5 and effects inhibiting on SMCs lesion formation, as well evaluate potential use prevention in-stent found inhibited both expression...

10.1161/01.res.0000190613.22565.13 article EN Circulation Research 2005-10-14

The transcription factor Krüppel-like 5 (KLF5) and its genetically downstream target gene platelet-derived growth factor-A (PDGF-A) chain are key factors in regulation of cardiovascular remodeling response to stress. We show that KLF5 mediates a novel distinct delayed persistent induction PDGF-A the model agonist, phorbol ester, through cis-element previously shown mediate ester on early (Egr-1). Interestingly, nuclear factor-κB (NF-κB) p50 subunit further cooperatively activates...

10.1074/jbc.m306621200 article EN cc-by Journal of Biological Chemistry 2003-12-24

This study aimed to evaluate the impact of early high-flow nasal oxygen (HFNO) therapy initiation using a pre-determined respiratory rate‑oxygenation (ROX) index on reducing reintubation rates and duration intensive care unit (ICU) stay in post-extubated patients.

10.1016/j.jcrc.2024.154840 article EN cc-by Journal of Critical Care 2024-05-29

A 20-year-old woman using Qing-Dai for about 7 years intractable ulcerative colitis was admitted to the emergency room because of dyspnea and syncope following exertion. The patient diagnosed with drug-induced pulmonary arterial hypertension (PAH). Discontinuation rapidly improved PAH symptoms. REVEAL 2.0 risk score, which is useful assessing severity predicting prognosis, from high (12) low (4) within 10 days. Discontinuing long-term use can improve Qing-Dai-induced PAH.

10.1016/j.jccase.2023.02.003 article EN cc-by-nc-nd Journal of Cardiology Cases 2023-02-22

Objective: The present study aimed to investigate the impact of preoperative C-reactive protein albumin (CRP/Alb) ratio on long-term outcomes patients with intrahepatic cholangiocarcinoma (ICC). Methods: 82 who underwent hepatic resection for mass-forming type ICC were evaluated. relationship between CRP/Alb and survival was investigated. Results: optimal cutoff value assessing overall (OS) determined as 0.089. Univariate analysis recurrence-free (RFS) showed that >0.089, carbohydrate...

10.31557/apjcp.2020.21.8.2373 article EN cc-by Asian Pacific Journal of Cancer Prevention 2020-08-01

The 2016 guidelines of the Japan Society for Surgical Infection and Chemotherapy advocate giving prophylactic antibiotics 1 hour before surgery until 24 hours after in patients undergoing elective hepatic resection. However, efficacy short-term antimicrobial prophylaxis has not been evaluated according to surgical approach. We open or laparoscopic resection.The study comprised 218 185 pure resection, respectively. Incidence rates postoperative infectious complications were compared between...

10.1002/ags3.12267 article EN cc-by Annals of Gastroenterological Surgery 2019-05-30

Abstract Aim This study aimed to elucidate the effects of laparoscopic liver resection (LLR) vs open (OLR) for major complications (Clavien‐Dindo classification grade ≥ IIIa) in obese individuals with hepatocellular carcinoma (HCC). Methods The clinical records 339 and 733 patients who underwent LLR OLR, respectively, HCC between 2000 2019 were retrospectively reviewed. Body mass index (BMI) groups classified according definitions World Health Organization: underweight group, BMI ≤ 18.4 kg/m...

10.1002/ags3.12506 article EN cc-by Annals of Gastroenterological Surgery 2021-09-16

Myofibroblastoma is usually occurred in the breast and extra-mammary disease rare.A 38-year-old man was admitted to our hospital for further examination of left inguinal tumour, present enlarging 16 months. The tumor 50 mm diameter, well-circumscribed, firm, painless. Ultrasonogaphy, computed tomography(CT) magnetic resonance imaging (MRI) could not provide definitive diagnosis. Surgical exploration confirmed a tumour with clear surface thin capsule. Complete excision achieved....

10.1016/j.ijscr.2018.11.048 article EN International Journal of Surgery Case Reports 2018-01-01

Background: Cholangiocarcinoma and secondary biliary cirrhosis can develop after liver resection for hepatolithiasis are causes of hepatolithiasis-related death. We determined potential risk factors death subsequent cholangiocarcinoma, including precancerous lesions such as intraepithelial neoplasia (BilIN) intraductal papillary neoplasm the bile duct, in patients undergoing hepatolithiasis. Methods: The study cohort included 62 who underwent without concomitant cholangiocarcinoma had...

10.31557/apjcp.2020.21.12.3647 article EN cc-by Asian Pacific Journal of Cancer Prevention 2020-12-01

Intracranial hemorrhage was induced in rats by low potent substances, glucose, NaCl and Na2SO4, intraperitoneally injected enormous amounts, that is, 2800 mOsmol/L (J. Toxicol. Sci. 5, 290, 1980). The present study undertaken to examine a mechanism of the above-mentioned phenomenon detail from aspects disturbance water-electrolyte balances change blood osmolality. After administration hypertonic solutions, abdominal fluid were obtained at intervals 5 15 min death. Hypertonic solutions rapid...

10.2131/jts.6.315 article EN The Journal of Toxicological Sciences 1981-01-01

Many patients who get discharged from the intensive care unit experience physical dysfunction that persists even after discharge. Physical is associated with skeletal muscle atrophy and accompanying unit-acquired weakness in early stages of admission, diagnosis prevention mobilization are crucial. However, amount activity required for remains controversial critically ill patients. This study aims to reveal optimal quantification score dose hospital

10.37737/ace.24014 article EN cc-by-nc-nd Annals of Clinical Epidemiology 2024-09-03

〔目的〕軽症から中等症の間質性肺炎(IP)患者に対する30秒椅子立ち上がり検査(CS-30)の有用性を検討した.〔対象〕6分間歩行検査(6MWT)とCS-30の両評価が可能であった19例のIP患者とした.〔方法〕両評価結果の間の相関関係と比較を検討した.〔結果〕CS-30回数は6分間歩行距離と有意な相関を認めた.最大心拍数,最大呼吸数と最大修正ボルグスコアにも有意な相関を認め,そしてCS-30におけるこれらの項目は有意に低値であった.最低SpO2もまた有意な相関を認めた.SpO2の低下量は,CS-30で有意に少なかった.〔結語〕軽症から中等症のIP患者においてCS-30は6MWTを反映し,かつ運動時低酸素血症などのリスクを軽減しうる評価法である可能性が示唆される.

10.1589/rika.31.473 article JA Rigakuryoho Kagaku 2016-01-01

The relationship between natriuresis and glucosuria produced by administration of 6-aminonicotinamide (6-AN), was investigated in the rat. After intraperitoneal 6-AN (75mg/kg), urine collected at intervals 2 hours using a metabolic cage for assays. Sodium glucose were excreted maximally into to 4 6 hours, respectively, after 6-AN, with time delay being recognized sodium peaks their urinary excretions. This dissociation patterns on excretion led following conclusion that natridiuresis induced...

10.2131/jts.9.353 article EN The Journal of Toxicological Sciences 1984-01-01

Mean blood pressure, renal clearances of electrolytes and urinary volume, in addition to hemodynamics functions, were comparatively investigated rats subjected ureteral catheterization by the ventral retro-peritoneal approach procedures order determine validity each these procedures. From 60 min after operation, mean pressure case gradually decreased, while retroperitoneal remained constant. The volume sodium excretion decreased about a half comparison with those one, although plasma...

10.1248/cpb.31.4524 article EN Chemical and Pharmaceutical Bulletin 1983-01-01

症例は74歳,女性.全身倦怠感を主訴に前医を受診し,腹部CT検査で回盲部腫瘤を指摘され紹介受診となった.初診時,右下腹部に手拳大の弾性硬な腫瘤を触知し,血液検査では貧血と炎症所見の上昇を認めたが,CEAおよびCA19-9は基準値範囲内であった.下部消化管内視鏡検査で,回盲部から上行結腸にかけて全周性の2型腫瘍が認められた.造影CT検査で明らかな遠隔転移は認められなかったが,右水腎症を認め尿管浸潤が疑われた.右尿管ステント留置の上,右半結腸切除術およびD3郭清を施行した.病理組織学的検査所見はss,ly1,v1,n0,Stage IIであり,腫瘍にはPAS陽性粘液成分が認められず低分化型扁平上皮癌と診断された.術後は良好に経過し現在補助化学療法施行中である.大腸原発の扁平上皮癌は極めて稀であり,腺癌に比べて予後は不良とされている.今回われわれは,盲腸原発扁平上皮癌の1切除例を経験した.

10.3919/jjsa.78.771 article JA Nihon Rinsho Geka Gakkai Zasshi (Journal of Japan Surgical Association) 2017-01-01

In this study, we investigated the effect of 6-aminonicotinamide (6-AN), a typical potent nhibitor pentose phosphate pathway, on renal transport para-aminohippurate (PAH) in rat. The contents adenosine-triphosphate (ATP) and 6-phosphogluconate (6-PG) kidney were measured at intervals 2 hours after administration 6-AN (75 mg/kg body weight, i.p.). It was found that 6-PG content rapidly increased reached plateau fourth hour administration, with level being maintained up to eighth hour....

10.1254/jjp.36.491 article EN The Japanese Journal of Pharmacology 1984-01-01

In this study, the effects of two non-steroidal anti-inflammatory drugs, ibuprofen and bucolome, on plasma levels sulfonamides (sulfamethizole sulfanilamide) were investigated in rats. The persistence sulfamethizole was prolonged by coadministration ibuprofen, while it hardly affected (though level slightly lowered) bucolome. No alteration observed or sulfanilamide experiments to investigate renal excretion sulfonamides, clearance ratio markedly decreased after infusion, bucolome had little...

10.1248/cpb.33.3415 article EN Chemical and Pharmaceutical Bulletin 1985-01-01

Abstract Background This study aimed to understand whether the one-time chair stand test (CS-1) is useful for predicting severity of coronavirus disease (COVID-19) in 101 patients admitted hospital with acute respiratory failure. Methods single-centered, prospective observational cohort enrolled critically ill adult hospitalized COVID-19 who underwent CS-1 as a dynamic evaluation tool clinical practice between late April 2020 and October 2021. Data on demographic characteristics, symptoms,...

10.1186/s12245-023-00497-x article EN cc-by International Journal of Emergency Medicine 2023-04-06
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