Shuhei Okuyama

ORCID: 0000-0001-6948-2341
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About
Contact & Profiles
Research Areas
  • Diverticular Disease and Complications
  • Gastrointestinal disorders and treatments
  • Gastrointestinal Bleeding Diagnosis and Treatment
  • Chronic Lymphocytic Leukemia Research
  • Liver Disease Diagnosis and Treatment
  • Lymphoma Diagnosis and Treatment
  • Cancer, Lipids, and Metabolism
  • Liver Disease and Transplantation
  • Gastroesophageal reflux and treatments
  • Salmonella and Campylobacter epidemiology
  • Platelet Disorders and Treatments
  • Alcohol Consumption and Health Effects
  • Fungal Infections and Studies
  • Hematopoietic Stem Cell Transplantation
  • Blood groups and transfusion
  • Liver Diseases and Immunity
  • Actinomycetales infections and treatment
  • Neonatal Health and Biochemistry
  • Diabetes and associated disorders
  • Pneumocystis jirovecii pneumonia detection and treatment
  • Abdominal vascular conditions and treatments
  • Heme Oxygenase-1 and Carbon Monoxide
  • Blood disorders and treatments
  • Interstitial Lung Diseases and Idiopathic Pulmonary Fibrosis
  • Methemoglobinemia and Tumor Lysis Syndrome

Yamagata Prefectural Central Hospital
2017-2024

Nagano Red Cross Hospital
2022-2023

St. Luke's International Hospital
2019-2022

University Gastroenterology
2020

Kyorin University
2006-2015

Abstract: It still remains unclear how antimitochondrial autoantibodies (AMA) are involved with immunopathogenesis of primary biliary cirrhosis (PBC). We have suggested the potential role IgA‐AMA in damage to epithelial cells PBC. In current study, we investigated whether were detectable sera and saliva PBC patients, examine association between IgA‐type or progression liver diseases. Fifty‐three patients enrolled, sought by immunoblotting using pork heart mitochondria as antigens. The was...

10.1196/annals.1381.028 article EN Annals of the New York Academy of Sciences 2007-06-01

This study was designed to determine whether non-alcoholic fatty liver disease (NAFLD), with or without metabolic syndrome (MetS), is a risk factor for cancer development.We conducted retrospective longitudinal at the Center Preventive Medicine, St. Luke's International Hospital. Among all participants who underwent health checkup between 2005 and 2019, development tendencies were compared those diagnosed NAFLD not. Further evaluation among NAFLD-diagnosed versus MetS in same manner. Those...

10.1111/jgh.15350 article EN Journal of Gastroenterology and Hepatology 2020-11-17

Abstract Background and Aims The identification of stigmata recent hemorrhage (SRH) in colonic diverticular bleeding (CDB) enables an endoscopic treatment can improve the clinical outcome. However, SRH rate remains low. This study aims to investigate whether NOBLADS Strate scoring systems are useful for predicting CDB pre‐procedurally via colonoscopy. Methods In this single‐center retrospective observational study, 302 patients who experienced their first episode from April 2008 March 2018...

10.1111/jgh.14901 article EN cc-by-nc Journal of Gastroenterology and Hepatology 2019-11-02

<b><i>Background & Aim:</i></b> This study aimed to evaluate the association between frequency of daily toothbrushing and development nonalcoholic fatty liver disease (NAFLD). <b><i>Methods:</i></b> A retrospective longitudinal was conducted from 2005 2012 at Center for Preventive Medicine St. Luke’s International Hospital, Japan. Data on all participants who underwent a health checkup during period were collected. NAFLD diagnosed by...

10.1159/000514930 article EN Digestive Diseases 2021-01-01

症例は64歳男性で,肝硬変の経過観察中2001年に径1 cm大の肝細胞癌(HCC)と診断された.HCCの再発のため,経皮的エタノール注入療法(PEIT)を4回,肝動脈塞栓療法(TAE)を3回施行された.2003年に縦隔リンパ節転移を認めたため,UFT®の投与が開始された.しかし,汎血球減少により半年間のみの投与となり,HCCと縦隔リンパ節転移の病状に変化はなく,PEITとTAEが繰り返された.HCCの進行を認めたため,2005年1月にTS-1®投与が開始された.6カ月の経過でHCCと縦隔リンパ節腫大の消失を認め,以後も再発は認めていない.本例のHCCと縦隔リンパ節腫大は,5-FUに感受性があり,ギメラシル(CDHP)により5-FUの血中濃度が高く保たれたため著効したと考えられた.

10.2957/kanzo.49.218 article JA Kanzo 2008-01-01

<b><i>Introduction:</i></b> Colonic diverticulosis increases with age, leading to a higher risk of colonic diverticular bleeding (CDB) in the elderly. As life expectancy continues increase, need for endoscopic hemostasis CDB elderly can also be expected increase. However, there have been no reports date on feasibility patients. Several recent studies addressed effectiveness band ligation (EBL) CDB. In this study, we evaluate safety and EBL patients compared younger...

10.1159/000513310 article EN Digestion 2021-01-01

Abstract BACKGROUND Isohemagglutinins against ABO antigens absent on both recipient and donor red blood cells (RBCs) increase or decrease after ABO‐incompatible hematopoietic stem cell transplantation (HSCT). However, few reports have described the changes in isohemagglutinin titers characteristics patients with recurrent hematologic conditions HSCT. CASE REPORT A 59‐year‐old female acute erythroid leukemia received a peripheral transplant from her HLA‐haploidentical daughter. The patient...

10.1111/trf.15510 article EN Transfusion 2019-09-10

This study aimed to evaluate whether serum bilirubin levels were associated with cancer development in a population without liver disease.A retrospective longitudinal was performed by including participants who underwent health checkup at St. Luke's International Hospital Tokyo from 2005 2019. We excluded those diseases or prior history of baseline. All classified into four groups according their total (T-Bil) level: very low (<0.5 mg/dl), (≥0.5 mg/dl, <1.0 intermediate (≥1.0 <1.5 and high...

10.1097/cej.0000000000000643 article EN European Journal of Cancer Prevention 2020-10-19

[b]BACKGROUND[/b] Nocardia infections have rarely been reported in hematopoietic stem cell transplantation (HSCT) patients, who usually receive the prophylactic use of sulfamethoxazole/trimethoprim (ST) against [i]Pneumocystis jiroveci[/i]. However, ST prophylaxis, sensitive to species, sometimes induces renal toxicities. Therefore, alternative or therapeutic drugs are required for nocardiosis HSCT patients. [b]CASE REPORT[/b] A 34-year-old Japanese man with acute mixed phenotypic leukemia...

10.12659/ajcr.931731 article EN American Journal of Case Reports 2021-05-11

Objective A high NOBLADS score reflecting the severity of lower gastrointestinal bleeding contributes to identification stigmata recent hemorrhage (SRH) in colonic diverticular (CDB). The burden colonoscopy is particularly elderly patients; therefore, we investigated utility for managing CDB by age stratification. performance SRH prediction was estimated area under receiver operating characteristic calculation and a multiple logistic regression model. Methods This single-center,...

10.2169/internalmedicine.9202-21 article EN Internal Medicine 2022-03-18

Objective assessments of esophageal varices (EVs) are inadequate. The recurrence variceal bleeding after endoscopic ligation (EVL) is associated with residual blood flow underlying EVL or incomplete treatment a perforating vein by EVL. We aimed to assess our novel through-the-scope Doppler probe method (DOP) for the evaluation and management EVs.This study included 20 patients (54 varices) history rupture from June 2019 May 2021 who underwent DOP at tertiary hospital. Variceal velocities...

10.1111/den.14345 article EN Digestive Endoscopy 2022-04-30

A 58-year-old man presented with painful edema of the extremities, and a diagnosis eosinophilic fasciitis (EF) was confirmed. He also met criteria for hypereosinophilic syndrome (HES), but there were no findings suggestive malignancies or hematologic neoplasms despite close examination. started on steroid therapy subsequently developed severe liver dysfunction, hemophagocytic lymphohistiocytosis, hepatosplenomegaly, renal involvement. The peripheral T-cell lymphoma, not otherwise specified...

10.2169/internalmedicine.9300-21 article EN Internal Medicine 2022-04-29

A 29-year-old pregnant woman at 29 weeks of gestation was transferred to our hospital following rupture the amniotic membrane. Laboratory findings blood collected in ethylenediaminetetra-acetic acid (EDTA) showed a haemoglobin concentration 100 g/l, white cell count 8.1 × 109/l and platelet 280 109/l, using Sysmex XE-5000 automated haematology system (Sysmex, Kobe, Japan). However, on scatterplots platelets were slightly shifted larger size, mean volume curve large broad. peripheral film...

10.1111/bjh.14808 article EN British Journal of Haematology 2017-06-23

Studies detailing endoscopic findings and hemostatic interventions for upper gastrointestinal bleeding after cardiovascular surgery are scarce. We conducted this study to determine the frequency of emergent esophagogastroduodenoscopy (EGD) effect requiring intervention on clinical outcomes.We retrospectively reviewed records EGD examinations within 30 days at a tertiary referral center in Japan from April 2011 March 2020. Of 1625 patients undergoing surgery, 47 underwent EGD. Sources were...

10.1002/jgh3.12717 article EN JGH Open 2022-03-01
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