Gluconeogenesis
This crucial pathway helps maintain blood glucose levels during periods of fasting or starvation.
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Most cited protocols related to «Gluconeogenesis»
Collectively, the 153 metabolic traits measured by the platform represent a broad molecular signature of systemic metabolism [20 (link),21 (link)]. The platform provided simultaneous quantification of lipoprotein lipids and subclasses, FAs and FA compositions, ketone bodies, amino acids, as well as glycolysis and gluconeogenesis-related metabolites in absolute concentration units. This platform has been applied in various large-scale epidemiological and genetic studies [22 (link)–25 (link)]; the detailed protocol, including information on quality control, has been published elsewhere [21 (link),26 (link)] and more information is given in
Most recents protocols related to «Gluconeogenesis»
Example 6
As a result of its ability to elevate the intracellular ratio of NAD+ to NADH, LbNOX is also capable of potentiating gluconeogenesis in mammalian cells (e.g., human cells). The first step of gluconeogenesis from lactate is the conversion of lactate to pyruvate, which requires cytosolic NAD+. Gluconeogenesis from lactate was significantly increased when primary hepatocytes were transduced with either LbNOX or mitoLbNOX-containing adenovirus (
, the labeled isotopologue is noted as , and its fraction is noted as , with being the number of 13C atoms in the isotopologue. The overall 13C labeling of the metabolite is calculated as the weighted average of atomized labeling of all isotopologues, or mathematically,
The normalized labeling is defined as the labeling of a metabolite normalized by the labeling of the infused tracer, as
As such, the direct contribution of gluconeogenic substrates to glucose production is algebraically calculated by solving the matrix equation
Specifically, let be the matrix and the vector on the left side, and the vector on the right side. The operation seeks to
The equation is solved using the R package limSolve (51 ). The error was estimated using Monte Carlo simulation by running the matrix equation 100 times, each time using randomly sampled values drawn from a normal distribution based on the mean and SE of entries in and . The calculated 's were pooled to calculate the error. This scheme was extended to calculate the mutual interconversions among the metabolites. The peak intensity of each measured isotope was corrected by natural abundance. To calculate the fraction of 13C-labeled carbon atoms of glucose, pyruvate, lactate, glutamine, and alanine derived from 13C-glucose and 13C-lactate, percent 13C enrichment (%) was first calculated from the data corrected by natural abundance and then normalized based on the serum tracer enrichment.
where qi are rate parameters.
After depletion sets in, we allow a drop in GP rate, rdepl [1/min], defined by
where the transfer function f(tPA; tdepl, n1) indicates whether exercise time exceeds tdepl and q6 is a rate parameter. The maximum decrease rm [1/min] in GP is the sum of the basal resting GP rate, rGPb, and the PA-driven GP rate at steady state, q3/q4 ⋅ Y(t), scaled by the proportion of net hepatic glucose production attributed to glycogenolysis, β.
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More about "Gluconeogenesis"
This crucial pathway, also known as glucose synthesis or glyconeogenesis, helps maintain blood glucose levels during periods of fasting or starvation.
Sodium pyruvate is a common gluconeogenic substrate, which can be converted to glucose through the gluconeogenic pathway.
Glucose assay kits, such as the Glucose (GO) Assay Kit (GAGO20), can be used to measure glucose levels and evaluate gluconeogenic activity.
The High-Capacity cDNA Reverse Transcription Kit can be employed to study the expression of genes involved in gluconeogenesis, like the key enzymes phosphoenolpyruvate carboxykinase (PEPCK) and glucose-6-phosphatase (G6Pase).
Antibodies targeting glucokinase (GK), phosphofructokinase-1 (PFK1), and AMP-activated protein kinase (AMPK) can provide insights into the regulation of gluconeogenesis.
PubCompare.ai, an innovative AI-driven platform, can optimize your Gluconeogenesis research by quickly locating relevant protocols from literature, preprints, and patents, while utilizing AI-powered comparisons to identify the most accurate and reproducible methods.
This powerful tool streamlines access to the latest Gluconeogenesis research and provides valuable insights to improve your experiments, enhancing your scientific discovery process.
Explore how PubCompare.ai can help you advance your Gluconeogenesis studies and uncover new findings.
Leverage this AI-powered platform to access a wealth of information, compare research methods, and optimize your experimental design for more reliable and impactful results.