Page last updated: 2024-10-17

malic acid and Autoimmune Diabetes

malic acid has been researched along with Autoimmune Diabetes in 2 studies

malic acid : A 2-hydroxydicarboxylic acid that is succinic acid in which one of the hydrogens attached to a carbon is replaced by a hydroxy group.
2-hydroxydicarboxylic acid : Any dicarboxylic acid carrying a hydroxy group on the carbon atom at position alpha to the carboxy group.

Research Excerpts

ExcerptRelevanceReference
"Alloxan and oxidative stress, which have been detected in livers of laboratory animals shortly after in vivo alloxan administration, cause in vitro mitochondrial dysfunction, thus questioning alloxan diabetes as an acceptable model for type 1 diabetes, a model that cannot legitimately be used to investigate mitochondrial metabolism in a diabetic state."7.77Early hyperglycemia following alloxan administration in vivo is not associated with altered hepatic mitochondrial function: acceptable model for type 1 diabetes? ( Alvarez-Bustamante, JA; Rendon, DA, 2011)
"Alloxan and oxidative stress, which have been detected in livers of laboratory animals shortly after in vivo alloxan administration, cause in vitro mitochondrial dysfunction, thus questioning alloxan diabetes as an acceptable model for type 1 diabetes, a model that cannot legitimately be used to investigate mitochondrial metabolism in a diabetic state."3.77Early hyperglycemia following alloxan administration in vivo is not associated with altered hepatic mitochondrial function: acceptable model for type 1 diabetes? ( Alvarez-Bustamante, JA; Rendon, DA, 2011)

Research

Studies (2)

TimeframeStudies, this research(%)All Research%
pre-19900 (0.00)18.7374
1990's0 (0.00)18.2507
2000's0 (0.00)29.6817
2010's1 (50.00)24.3611
2020's1 (50.00)2.80

Authors

AuthorsStudies
Vigers, T1
Vinovskis, C1
Li, LP1
Prasad, P1
Heerspink, H1
D'Alessandro, A1
Reisz, JA1
Piani, F1
Cherney, DZ1
van Raalte, DH1
Nadeau, KJ1
Pavkov, ME1
Nelson, RG1
Pyle, L1
Bjornstad, P1
Rendon, DA1
Alvarez-Bustamante, JA1

Clinical Trials (2)

Trial Overview

TrialPhaseEnrollmentStudy TypeStart DateStatus
CASPER Study: Copeptin in Adolescent Participants With Type 1 Diabetes and Early Renal Hemodynamic Function[NCT03618420]Phase 1/Phase 250 participants (Actual)Interventional2018-10-01Completed
Renal HEIR Study: Renal Hemodynamics, Energetics and Insulin Resistance in Youth Onset Type 2 Diabetes Study[NCT03584217]Phase 1/Phase 2100 participants (Actual)Interventional2018-10-01Active, not recruiting
[information is prepared from clinicaltrials.gov, extracted Sep-2024]

Trial Outcomes

Copeptin Levels

Measured by fasting blood draw; Copeptin will be measured by ultrasensitive assays on KRYPTOR Compact Plus analyzers using the commercial sandwich immunoluminometric assays (Thermo Fisher Scientific, Waltham, MA). The copeptin assay has a lower limit of detection of 0.9 pmol/L, and a sensitivity of <2pmol/L. Elevated copeptin will be defined as >13pmol/L, which is >97.5th percentile for healthy adults (68). (NCT03618420)
Timeframe: 4 hours

Interventionpmol/L (Mean)
Clinical Investigation8.3

Effective Renal Plasma Flow (ERPF)

Measured by para-aminohippurate (PAH) clearance; An intravenous (IV) line was placed, and participants were asked to empty their bladders. Spot plasma and urine samples were collected prior PAH infusion. PAH (2 g/10 mL, prepared at the University of Minnesota, with a dose of [weight in kg]/75 × 4.2 mL; IND #140129) was given slowly over 5 min followed by a continuous infusion of 8 mL of PAH and 42 mL of normal saline at a rate of 24 mL/h for 2 h. After an equilibration period, blood was drawn at 90 and 120 min, and ERPF was calculated as PAH clearance divided by the estimated extraction ratio of PAH, which varies by the level of GFR (13). We report absolute ERPF (mL/min) in the main analyses because the practice of indexing ERPF for body surface underestimates hyperperfusion, and body surface area (BSA) calculations introduce noise into the clearance measurements. (NCT03618420)
Timeframe: 4 hours

Interventionml/min (Mean)
Clinical Investigation820

Glomerular Filtration Rate (GFR)

Measured by iohexol clearance; An intravenous (IV) line was placed, and participants were asked to empty their bladders. Spot plasma and urine samples were collected prior to iohexol infusion. Iohexol was administered through bolus IV injection (5 mL of 300 mg/mL; Omnipaque 300, GE Healthcare). An equilibration period of 120 min was used and blood collections for iohexol plasma disappearance were drawn at +120, +150, +180, +210, +240 min (11). Because the Brøchner-Mortensen equation underestimates high values of GFR, the Jødal-Brøchner-Mortensen equation was used to calculate the GFR (12). We report absolute GFR (mL/min) in the main analyses because the practice of indexing GFR for body surface underestimates hyperfiltration, and body surface area (BSA) calculations introduce noise into the clearance measurements. (NCT03618420)
Timeframe: 4 hours

Interventionml/min (Mean)
Clinical Investigation189

Renal Oxygenation

Measured by Blood Oxygen Level Dependent (BOLD) MRI; Regions of interest (ROI) analysis for BOLD MRI will be performed on a Leonardo Workstation (Siemens Medical Systems, Germany). Typically, 1 to 3 regions in each, cortex and medulla, per kidney per slice will be defined leading to a total of about 10 ROIs per region (cortex and medulla) per subject. The mean and standard deviation of these 10 measurements will be used a R2* measurement for the region, for the subject and for that time point. These data are used to calculate kidney oxygen availability (R2*), which is the BOLD-MRI outcome. (NCT03618420)
Timeframe: 60 min

Interventions^-1 (Mean)
Clinical Investigation22.7

Renal Perfusion

Measured by Arterial Spin Labeling (ASL) MRI; ASL MRI: ROI analysis will be used to estimate (delta) M (difference in signal intensity between non-selective and selective inversion images). Using the same ROI, M0 will be estimated from the proton density image. T1 measurements from the same ROI will be obtained by fitting the signal intensity vs. inversion time data as described previously (104) using XLFit (ID Business Solutions Ltd., UK) or T1 maps created using MRI Mapper (Beth Israel Deaconess Medical Center, Boston). Partition coefficient will be assumed to be 0.8 ml/gm (105, 106). These values will then be used to estimate regional blood flow. (NCT03618420)
Timeframe: 10 min

Interventionml/min/100g (Mean)
Clinical Investigation180

Trials

1 trial available for malic acid and Autoimmune Diabetes

ArticleYear
Plasma levels of carboxylic acids are markers of early kidney dysfunction in young people with type 1 diabetes.
    Pediatric nephrology (Berlin, Germany), 2023, Volume: 38, Issue:1

    Topics: Adolescent; Albuminuria; Carboxylic Acids; Diabetes Mellitus, Type 1; Fumarates; Glomerular Filtrati

2023
Plasma levels of carboxylic acids are markers of early kidney dysfunction in young people with type 1 diabetes.
    Pediatric nephrology (Berlin, Germany), 2023, Volume: 38, Issue:1

    Topics: Adolescent; Albuminuria; Carboxylic Acids; Diabetes Mellitus, Type 1; Fumarates; Glomerular Filtrati

2023
Plasma levels of carboxylic acids are markers of early kidney dysfunction in young people with type 1 diabetes.
    Pediatric nephrology (Berlin, Germany), 2023, Volume: 38, Issue:1

    Topics: Adolescent; Albuminuria; Carboxylic Acids; Diabetes Mellitus, Type 1; Fumarates; Glomerular Filtrati

2023
Plasma levels of carboxylic acids are markers of early kidney dysfunction in young people with type 1 diabetes.
    Pediatric nephrology (Berlin, Germany), 2023, Volume: 38, Issue:1

    Topics: Adolescent; Albuminuria; Carboxylic Acids; Diabetes Mellitus, Type 1; Fumarates; Glomerular Filtrati

2023

Other Studies

1 other study available for malic acid and Autoimmune Diabetes

ArticleYear
Early hyperglycemia following alloxan administration in vivo is not associated with altered hepatic mitochondrial function: acceptable model for type 1 diabetes?
    Canadian journal of physiology and pharmacology, 2011, Volume: 89, Issue:7

    Topics: Alloxan; Animals; Blood Glucose; Diabetes Mellitus, Experimental; Diabetes Mellitus, Type 1; Disease

2011