Tomoaki Iwai

ORCID: 0000-0003-2021-0673
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About
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Research Areas
  • Renal Transplantation Outcomes and Treatments
  • Tribology and Wear Analysis
  • Organ Transplantation Techniques and Outcomes
  • Organ Donation and Transplantation
  • Adhesion, Friction, and Surface Interactions
  • Lubricants and Their Additives
  • Mechanical stress and fatigue analysis
  • Renal Diseases and Glomerulopathies
  • Polymer Nanocomposites and Properties
  • Polyomavirus and related diseases
  • Nutrition and Health in Aging
  • Engineering Applied Research
  • Brake Systems and Friction Analysis
  • Dialysis and Renal Disease Management
  • Synthesis and properties of polymers
  • Renal and Vascular Pathologies
  • Neurological Complications and Syndromes
  • Metal and Thin Film Mechanics
  • Railway Engineering and Dynamics
  • Organ and Tissue Transplantation Research
  • Advanced Surface Polishing Techniques
  • Pharmacological Effects and Toxicity Studies
  • Tribology and Lubrication Engineering
  • Cytomegalovirus and herpesvirus research
  • Lower Extremity Biomechanics and Pathologies

Osaka Metropolitan University
2022-2024

Tokyo Metropolitan University
2023-2024

Osaka Prefecture University
2024

Kanazawa University
2012-2023

Osaka City University
2013-2023

Creative Research Enterprises (United States)
2018

Yokohama Rubber (Japan)
2004

Engineering Systems (United States)
1999

Malnutrition is an important risk factor for the development of sarcopenia. Recently, phase angle (PhA) obtained from bioelectrical impedance analysis increasingly becoming known as a nutritional status marker and may be considered good indicator to identify elderly patients at In this study, we investigated prevalence sarcopenia relationship between PhA or body mass index (BMI) factors, evaluated discrimination performance these factors in 210 kidney transplant recipients. The median age...

10.1038/s41598-019-57195-z article EN cc-by Scientific Reports 2020-01-14

Background/Objectives: Ischemic time plays a crucial role in graft function and survival during kidney transplantation. Cooling methods, including cold perfusion ice slush, are predominantly applied to preserve the kidney, but they may cause uneven cooling complications. The Organ Pocket®, an insulated gel bag, has been introduced as alternative method. However, no studies have compared renal temperature changes between Pocket® conventional methods. Methods: We retrospectively analyzed 49...

10.3390/jcm14072368 article EN Journal of Clinical Medicine 2025-03-29

Introduction Living donor kidney transplantation is preferable to deceased due its superior long-term patient and graft survivals. However, ABO blood group incompatibility a major barrier living transplantation. ABO-incompatible has been performed in Japan since the late 1980’s, but it still globally uncommon. The objective of this study compare clinical outcomes (ABO-IKT) with that ABO-compatible (ABO-CKT) at an institution where only about two transplants are month on average. Design A...

10.1371/journal.pone.0208638 article EN cc-by PLoS ONE 2018-12-31

Lymphatic leakage after kidney transplantation is a relatively frequent complication but sometimes resistant to treatment, and there no fixed treatment algorithm. The effectiveness of therapeutic lymphangiography for postoperative lymphatic or chyle has been reported, few reports are available regarding patients who have undergone transplantation. In this study, we report our experience with as tool Intranodal was performed in 4 (3 male, 1 female; age range, 38 70 years old) living at the...

10.1016/j.transproceed.2018.03.095 article EN cc-by-nc-nd Transplantation Proceedings 2018-03-19

In this study, we report on an experience with the use of a novel agent "roxadustat," hypoxia-inducible factor prolyl hydroxylase inhibitor (HIF-PHI), for posttransplant anemia (PTA) in renal transplant recipients. Five recipients treated as outpatients receiving 150 or 250 µg "epoetin beta pegol," erythropoiesis-stimulating (ESA), once every 3 months were converted to roxadustat, HIF-PHI. The dose was 100 mg times week taken orally Monday, Wednesday, and Friday. Data check conducted at 1...

10.1016/j.transproceed.2021.10.022 article EN cc-by Transplantation Proceedings 2022-02-02

Patients aged 60 years and older represent the fastest-growing population with end-stage renal disease worldwide, need for a kidney transplant among this is increasing. Due to severe shortage of deceased donors in Japan, ABO-incompatible living donor transplantation has been performed since late 1980s. Excellent long-term outcomes have achieved, rates graft survival these patients are currently similar those recipients ABO-compatible grafts. However, elderly over age not well studied yet. We...

10.1007/s11255-012-0231-z article EN cc-by International Urology and Nephrology 2012-07-25

Objectives To investigate the prevalence of frailty, and relationship frailty based on Kihon Checklist criteria with dialysis duration before transplantation time after in kidney transplant recipients. Methods This study was a single‐center, cross‐sectional investigation carried out examine association between total score transplant, multivariable proportional odds logistic regression model used adjustment for age, sex, body mass index, estimated glomerular filtration rate serum albumin...

10.1111/iju.14208 article EN International Journal of Urology 2020-03-07

A recent report has demonstrated that as with mycophenolate mofetil (MMF), everolimus is capable of inhibiting human B-lymphocyte function and activation including proliferation, apoptosis, immunoglobulin production in vitro. Everolimus may therefore be used an immunosuppressant ABO-incompatible kidney transplantation.A three-month pilot study was performed to examine the efficacy safety conversion stable transplant recipients from MMF standard exposure calcineurin inhibitors (CNIs) very low...

10.1111/ctr.12281 article EN Clinical Transplantation 2013-12-11

Abstract: The patient was a 51‐year‐old female. Post‐biopsy arteriovenous fistula (AVF) and pseudoaneurysm in renal allograft were diagnosed 5 yr 4 months after she received transplantation. Four years the diagnosis, interventional treatment for AVF performed because of high risk rupture. Although longitudinal diameter more than cm, this treated successfully by percutaneous transluminal embolization, function has remained stable embolization. A selective procedure proved effective large...

10.1034/j.1399-0012.2003.02089.x article EN Clinical Transplantation 2003-02-01

ABO-incompatible living unrelated donor kidney transplantation is an immunologically high-risk procedure, but few reports have been made on the outcomes of these transplants.We analyzed 12 transplants using living-unrelated donors performed at our institution between January 1999 and December 2007, focusing immunosuppressive protocols, complications graft survivals.Patient survival rates were 100%. One patient experienced antibody-mediated rejection intractable acute cellular rejection, one...

10.1159/000324103 article EN Urologia Internationalis 2011-01-01

While renal dysfunction is often observed in patients following urinary diversion due to bladder cancer, there have been few studies on this subject. A cross-sectional study was performed the function of ileal conduit and prevalence risk factors for chronic kidney disease (CKD) were examined. Patients with (n=102), who being followed-up as outpatients stable condition, well age- gender-matched healthy control subjects (n=63) selected study. The CKD compared between subjects. Next, clinical...

10.3892/etm.2012.703 article EN Experimental and Therapeutic Medicine 2012-09-11
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