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Investigation of the mechanism of improvement of renal function before and after metabolic surgery

Investigation of the mechanism of improvement of renal function before and after metabolic surgery - Investigation of the mechanism of improvement of renal function before and after metabolic surgery

Status
Recruiting
Phases
Unknown
Study type
Observational
Source
JPRN
Registry ID
JPRN-UMIN000057522
Enrollment
40
Registered
2025-04-07
Start date
2025-03-21
Completion date
Unknown
Last updated
2026-06-29

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Adiposity

Interventions

None listed

Sponsors

Iwate Medical University
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: Patients who are scheduled to undergo MS and have given their consent to participate in this study. Patients with MS should have the following conditions 1) Severely obese patients with a Body Mass Index (BMI) of 35 kg/m2 or higher and one or more of the following complications: type 2 diabetes, hypertension, dyslipidemia, sleep apnea syndrome, or metabolic disfunction associated steatotic liver disease including metabolic dysfunction associated fatty liver disease 2) Obese patients with BMI of 32 - 34.9 kg/m2 and type 2 diabetes mellitus with HbA1c of 8.0% or higher (NGSP: National Glycohemogulobin Standardization Program value), or hypertension which is difficult to control for systolic blood pressure of 160 mmHg or lower even with antihypertensive drug therapy for 6 months or longer, dyslipidemia which is difficult to manage for LDL cholesterol 140 mg/dL or lower or non-HDL cholesterol 170 mg/dL or lower even with statins or other drugs for at least 6 months. Sleep apnea syndrome is limited to patients who are (AHI Apnea Hyponea Index > 30) or fatty liver disease related to metabolic dysfunction, metabolic disfunction associated steatotic liver disease including metabolic dysfunction associated fatty liver disease of two or more of the following

Exclusion criteria

Exclusion criteria: not applicable

Design outcomes

Primary

MeasureTime frame
Urinary biomarkers that correlate with the efficacy of metabolic surgery and improvement in hypertension, type 2 diabetes, and CKD will be evaluated and studied. In addition, postoperative weight including BMI, status of obesity related disorders, medication status (diabetes medications, antihypertensive medications, etc.), glucose tolerance test, blood tests (blood count, biochemistry, blood sugar, etc.), respiratory function tests, all-night polysomnography, contrast enhanced (plain) CT of the thoracoabdominal pelvic region, histopathological examination (liver tissue), and postoperative urine Metabolomic changes will be evaluated for regulator changes involved in fibrosis of adipocyte tissue and changes in perirenal adipose tissue volume, using multiomics analysis of plasma and urine.

Countries

Japan

Contacts

Public ContactAkira Umemura

Iwate Medical University School of Medicine Department of Surgery

aumemura@iwate-med.ac.jp019-613-7111

Outcome results

None listed

Source: JPRN (via WHO ICTRP) · Data processed: Jul 3, 2026