Healthy Clinical Trial
— NAFLDCOFCALOfficial title:
Kinetics of Metabolic Cofactors After Oral Supplementation in Healthy Subjects
Verified date | February 2019 |
Source | Sahlgrenska University Hospital, Sweden |
Contact | n/a |
Is FDA regulated | No |
Health authority | |
Study type | Interventional |
There is a strong correlation between major adverse health consequences of obesity and
development of non-alcoholic fatty liver disease (NAFLD). NAFLD is characterized by abnormal
hepatic accumulation of triglycerides and other lipids. It has become a worldwide health
problem that accelerates cirrhosis, type 2 diabetes mellitus (T2DM), and especially premature
cardiovascular morbidity and mortality.
The plasma level of glutathione (GSH) is typically depleted in individuals with metabolism
related disorders. However, cellular GSH levels cannot be increased by supplementing GSH and
it must be synthesized within the liver either de novo or by salvation pathway. The level of
GSH is not enough to maintain and regulate the thiol redox status of the liver in subjects
with high hepatic steatosis at fasting stage due to the depletion of glycine. Glycine can be
synthesized via the interconversion of serine. It has been shown that the serine synthesis is
downregulated in patients with NAFLD and supplementation of serine has attenuated alcoholic
fatty liver by enhancing homocysteine metabolism in mice and rats. Depleted liver glutathione
is also restored by the administration of N-acetylcystein as in acetaminophen poising.
L-carnitine and nicotinamide that both stimulate the transfer of fatty acids from cytosol to
mitochondria have been identified as two additional cofactors that are depleted in patients
with NAFLD.
In this study, the kinetics in blood of pivotal metabolic cofactors, serine, L-carnitine,
N-acetylcystein and nicotinamide after single and simultaneous dietary supplementation, are
measured.
Status | Completed |
Enrollment | 10 |
Est. completion date | December 1, 2018 |
Est. primary completion date | November 1, 2018 |
Accepts healthy volunteers | Accepts Healthy Volunteers |
Gender | Male |
Age group | 18 Years to 40 Years |
Eligibility |
Inclusion Criteria: Healthy without any medication, no smokers, no obesity Exclusion Criteria: Any known disease, obesity |
Country | Name | City | State |
---|---|---|---|
Sweden | Hanns-Ulrich Marschall | Göteborg | |
Sweden | Sahlgrenska Academy | Göteborg |
Lead Sponsor | Collaborator |
---|---|
Sahlgrenska University Hospital, Sweden | Chalmers University of Technology, Karolinska Institutet |
Sweden,
Type | Measure | Description | Time frame | Safety issue |
---|---|---|---|---|
Primary | Changes of plasma levels of nicotinamide riboside measured by mass spectrometry | Plasma levels of nicotinamide riboside by UPLCMSMS at 8 time points during 24h after administration | Twenty-four hours after administration | |
Primary | Changes of plasma levels of L-carnitine measured by mass spectrometry | Plasma levels of L-carnitine (nM) measured by UPLCMSMS at 8 time points during 24h after administration | Twenty-four hours after administration | |
Primary | Changes of plasma levels of L-serine measured by mass spectrometry | Plasma levels of L-serine (nM) measured by UPLCMSMS at 8 times points during 24h after administration | Twenty-four hours after administration | |
Primary | Changes of plasma levels of N-acetylcystein measured by mass spectrometry | Plasma levels of N-acetylcystein (nM) measured by UPLCMSMS at 8 times points during 24h after administration | Twenty-four hours after administration | |
Secondary | Changes in the plasma level of metabolites associated with the supplementation of metabolic co-factors. | Untargeted metabolomic analysis using mass spectrometry. (Untargeted = not pre-specified in terms of outcome) | Twenty-four hours after administration of combined cofactors | |
Secondary | Changes in the plasma level of inflammation-related proteins associated with the supplementation of metabolic co-factors. | Changes in the plasma level of inflammation related proteins associated with the supplementation of metabolic co-factors. | Twenty-four hours after administration of combined cofactors |
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