NCT03790579

Brief Summary

Dietary habits resembling Western style, rich in animal protein and poor in fruit and vegetables, increase the body acid load, a predictor of type 2 diabetes risk. Recently, the studies related to relationships between dietary acid load and insulin resistance has become a growing interest but there are only a few study conducted with gestational diabetes mellitus (GDM). Therefore, the aim of this study was to evaluate the potential relationship between dietary acid load in second trimester, blood lipid profiles and GDM.

Trial Health

100
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
80

participants targeted

Target at P50-P75 for all trials

Timeline
Completed

Started Jan 2014

Shorter than P25 for all trials

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

January 5, 2014

Completed
8 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

September 5, 2014

Completed
1 month until next milestone

Study Completion

Last participant's last visit for all outcomes

October 5, 2014

Completed
4.2 years until next milestone

First Submitted

Initial submission to the registry

December 28, 2018

Completed
3 days until next milestone

First Posted

Study publicly available on registry

December 31, 2018

Completed
Last Updated

January 2, 2019

Status Verified

December 1, 2018

Enrollment Period

8 months

First QC Date

December 28, 2018

Last Update Submit

December 29, 2018

Conditions

Keywords

Gestational diabetes mellitusDietary acid loadPregnancy

Outcome Measures

Primary Outcomes (1)

  • Dietary acid load

    According to the data obtained from software analysis, animal protein (g/day) to potassium (g/day) ratio (AP/K), potential renal acid load (PRAL; mEq/day) score and net endogenous acid production (NEAP; mEq/day) were calculated from established algorithms to estimate dietary acid load.

    24-28. weeks of pregnancy

Study Arms (2)

Women with gestational diabetes

We randomly selected the 40 pregnant women diagnosed GDM by two-step procedure based on Carpenter-Coustan criteria at this hospital. The diagnosis of GDM was confirmed if at least 2 of 4 glucose levels exceed based on Carpenter-Coustan criteria: fasting ≥ 95 mg/dL (5.3 mmol/L), 1 hour ≥ 180 mg/dL ( 10.0 mmol/L), 2 hour ≥ 155 mg/dL (8.6 mmol/L), and 3 hour ≥ 140 mg/dL (7.8 mmol/L).

Healthy women

We also randomly selected 40 healthy pregnant with normal serum glucose levels ≤129 mg/dL (7.2 mmol/L) after GCT.

Eligibility Criteria

Age21 Years - 41 Years
Sexfemale(Gender-based eligibility)
Healthy VolunteersYes
Age GroupsAdult (18-64)
Sampling MethodNon-Probability Sample
Study Population

In this observational cross-sectional study, 40 women with GDM and 40 healthy pregnant between 21-41 years in age, in their 24-28th gestational week applied to Gulhane Education and Research Hospital were recruited. This study must recruit 40 women for each group to have 80% study power with 5% type I error level to detect a clinically significant difference.

You may qualify if:

  • Singleton pregnancy,
  • Aged in 20-40 years,
  • Gestational age 24-28 weeks,
  • Non-history of acute or chronic diseases.

You may not qualify if:

  • History of GDM,
  • Type 1 and 2 diabetes mellitus,
  • Preeclampsia,
  • Polycystic ovary syndrome,
  • Thyroid disease
  • Parathyroid disease,
  • Metabolic bone disease,
  • Kidney disease,
  • Abnormal liver function,
  • Multiple pregnancy
  • Extreme values of energy intake in their dietary records (\<1500 and \>4000 kkal).

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Related Publications (9)

  • Della Guardia L, Thomas MA, Cena H. Insulin Sensitivity and Glucose Homeostasis Can Be Influenced by Metabolic Acid Load. Nutrients. 2018 May 15;10(5):618. doi: 10.3390/nu10050618.

    PMID: 29762478BACKGROUND
  • Jayedi A, Shab-Bidar S. Dietary acid load and risk of type 2 diabetes: A systematic review and dose-response meta-analysis of prospective observational studies. Clin Nutr ESPEN. 2018 Feb;23:10-18. doi: 10.1016/j.clnesp.2017.12.005. Epub 2017 Dec 23.

    PMID: 29460782BACKGROUND
  • Williams RS, Kozan P, Samocha-Bonet D. The role of dietary acid load and mild metabolic acidosis in insulin resistance in humans. Biochimie. 2016 May;124:171-177. doi: 10.1016/j.biochi.2015.09.012. Epub 2015 Sep 10.

    PMID: 26363101BACKGROUND
  • Gaede J, Nielsen T, Madsen ML, Toft U, Jorgensen T, Overvad K, Tjonneland A, Hansen T, Allin KH, Pedersen O. Population-based studies of relationships between dietary acidity load, insulin resistance and incident diabetes in Danes. Nutr J. 2018 Oct 6;17(1):91. doi: 10.1186/s12937-018-0395-1.

  • Saraf-Bank S, Tehrani H, Haghighatdoost F, Moosavian SP, Azadbakht L. The acidity of early pregnancy diet and risk of gestational diabetes mellitus. Clin Nutr. 2018 Dec;37(6 Pt A):2054-2059. doi: 10.1016/j.clnu.2017.09.020. Epub 2017 Oct 3.

  • Miki A, Hashimoto Y, Tanaka M, Kobayashi Y, Wada S, Kuwahata M, Kido Y, Yamazaki M, Fukui M. Urinary pH reflects dietary acid load in patients with type 2 diabetes. J Clin Biochem Nutr. 2017 Jul;61(1):74-77. doi: 10.3164/jcbn.16-118. Epub 2017 Jul 1.

  • Kiefte-de Jong JC, Li Y, Chen M, Curhan GC, Mattei J, Malik VS, Forman JP, Franco OH, Hu FB. Diet-dependent acid load and type 2 diabetes: pooled results from three prospective cohort studies. Diabetologia. 2017 Feb;60(2):270-279. doi: 10.1007/s00125-016-4153-7. Epub 2016 Nov 17.

  • Williams RS, Heilbronn LK, Chen DL, Coster AC, Greenfield JR, Samocha-Bonet D. Dietary acid load, metabolic acidosis and insulin resistance - Lessons from cross-sectional and overfeeding studies in humans. Clin Nutr. 2016 Oct;35(5):1084-90. doi: 10.1016/j.clnu.2015.08.002. Epub 2015 Aug 12.

  • Akter S, Eguchi M, Kuwahara K, Kochi T, Ito R, Kurotani K, Tsuruoka H, Nanri A, Kabe I, Mizoue T. High dietary acid load is associated with insulin resistance: The Furukawa Nutrition and Health Study. Clin Nutr. 2016 Apr;35(2):453-459. doi: 10.1016/j.clnu.2015.03.008. Epub 2015 Mar 27.

MeSH Terms

Conditions

Diabetes, GestationalFeeding Behavior

Condition Hierarchy (Ancestors)

Pregnancy ComplicationsFemale Urogenital Diseases and Pregnancy ComplicationsUrogenital DiseasesDiabetes MellitusGlucose Metabolism DisordersMetabolic DiseasesNutritional and Metabolic DiseasesEndocrine System DiseasesBehavior, AnimalBehavior

Study Officials

  • Gülhan SAMUR, Professor

    Hacettepe University

    PRINCIPAL INVESTIGATOR
  • Gözde EDE, MSci

    Mehmet Akif Ersoy University

    STUDY CHAIR

Study Design

Study Type
observational
Observational Model
CASE CONTROL
Time Perspective
CROSS SECTIONAL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Professor doctor

Study Record Dates

First Submitted

December 28, 2018

First Posted

December 31, 2018

Study Start

January 5, 2014

Primary Completion

September 5, 2014

Study Completion

October 5, 2014

Last Updated

January 2, 2019

Record last verified: 2018-12

Data Sharing

IPD Sharing
Will not share