Abstract

This project seeks to understand the basis of brain ketone utilization under states of increased ketone availability such as during prolonged fasting and under the influence of a ketogenic diet. Preliminary work has concluded that the physiologically specific D beta hydroxybutyrate (BHB), gives a greater detectable increase than the unspecific DL anomeric mix in plasma BHB levels when infused, since biochemical assays for BHB are stereospecific for the D isomer. We have demonstrated that after 72 hours fasting, an infusion of sodium D-betahydroxybutyrate can increase plasma BHB levels from about 4mM to 6mM. Acetoacetate (AcAc) levels are about 1mM as expected. Work has been completed on obtaining a pyrogen free supply of sodium acetoacetate. Future infusions will include a physiological mix (4:1) of BHB and AcAc. Initial magnetic resonance studies of brain ketosis at 4.0T indicate that BHB and lactate levels can be quantified in brain tissue when plasma ketone levels are about 4-7mM.

  Funding Agency

Agency
National Institute of Health (NIH)
Institute
National Center for Research Resources (NCRR)
Type
General Clinical Research Centers Program (M01)
Project #
5M01RR012248-04
Application #
6408682
Study Section
National Center for Research Resources Initial Review Group (RIRG)
Project Start
1997-09-30
Project End
2001-11-30
Budget Start
Budget End
Support Year
4
Fiscal Year
2000
Total Cost
Indirect Cost

  Institution

Name
Albert Einstein College of Medicine
Department
Type
DUNS #
009095365
City
Bronx
State
NY
Country
United States
Zip Code
10461

  Publications

Ezzati, Ali; Katz, Mindy J; Lipton, Michael L et al. (2016) Hippocampal volume and cingulum bundle fractional anisotropy are independently associated with verbal memory in older adults. Brain Imaging Behav 10:652-9
Huang, Ying; Van Horn, Linda; Tinker, Lesley F et al. (2014) Measurement error corrected sodium and potassium intake estimation using 24-hour urinary excretion. Hypertension 63:238-44
Mossavar-Rahmani, Yasmin; Tinker, Lesley F; Huang, Ying et al. (2013) Factors relating to eating style, social desirability, body image and eating meals at home increase the precision of calibration equations correcting self-report measures of diet using recovery biomarkers: findings from the Women's Health Initiative. Nutr J 12:63
Esterson, Yonah B; Zhang, Kehao; Koppaka, Sudha et al. (2013) Insulin sensitizing and anti-inflammatory effects of thiazolidinediones are heightened in obese patients. J Investig Med 61:1152-60
Prentice, Ross L; Neuhouser, Marian L; Tinker, Lesley F et al. (2013) An exploratory study of respiratory quotient calibration and association with postmenopausal breast cancer. Cancer Epidemiol Biomarkers Prev 22:2374-83
Wylie-Rosett, Judith; Aebersold, Karin; Conlon, Beth et al. (2013) Health effects of low-carbohydrate diets: where should new research go? Curr Diab Rep 13:271-8
Cai, Guiqing; Atzmon, Gil; Naj, Adam C et al. (2012) Evidence against a role for rare ADAM10 mutations in sporadic Alzheimer disease. Neurobiol Aging 33:416-417.e3
Wang, Zhaoming; Parikh, Hemang; Jia, Jinping et al. (2012) Y chromosome haplogroups and prostate cancer in populations of European and Ashkenazi Jewish ancestry. Hum Genet 131:1173-85
Kenny, Eimear E; Pe'er, Itsik; Karban, Amir et al. (2012) A genome-wide scan of Ashkenazi Jewish Crohn's disease suggests novel susceptibility loci. PLoS Genet 8:e1002559
Kehlenbrink, S; Koppaka, S; Martin, M et al. (2012) Elevated NEFA levels impair glucose effectiveness by increasing net hepatic glycogenolysis. Diabetologia 55:3021-8

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