The present study shows that the basal
glucose uptake as well as insulin - stimulated GS activity is reduced in satellite cell cultures established from patients with type 2 diabetes.
Among the Indian Ayurvedic plant extracts, Kali musli (Curculigo orchioides) stimulated
glucose uptake as well as reduced fat accumulation.
Not exact matches
The
uptake of
glucose by cells closely reflects their energetic needs, and is becoming poorly regulated in many pathological conditions such
as obesity, diabetes and cancer.
In a recent study published in Angewandte Chemie International Edition, Associate Professor of Chemistry Wei Min's team developed a new
glucose analogue that can mimic the natural
glucose, and imaged its
uptake as energy source by living cancer cells, neurons and tissues at the single cell level.
Glucose being supplemented with ketones, such as D - β - hydroxybutyrate or other substrate, could be one of the explanations for the decreased glucose uptake caused by ex
Glucose being supplemented with ketones, such
as D - β - hydroxybutyrate or other substrate, could be one of the explanations for the decreased
glucose uptake caused by ex
glucose uptake caused by exercise.
Using PET brain scans, they showed that those with impaired illness awareness also had reduced
glucose uptake in specific brain regions, even when accounting for other factors linked to reduced
glucose uptake, such
as age and degree of memory loss.
To test how well FAHFAs could work
as a potential therapy, the researchers fed the lipids to insulin - resistant mice, and observed an improvement in inflammation, insulin sensitivity and
glucose uptake.
They found that GLUT1 deficiency led to diminished
glucose uptake into the brain
as early
as two weeks of age and, by six months of age, neuronal dysfunction, behavioral deficits, elevated levels of amyloid - beta peptide, behavioral changes and neurodegenerative changes.
PI3K inhibitors are the subject of some 100 clinical trials, including one that will test whether a cancer treatment's early failure to reduce
glucose uptake,
as measured by FDG PET, can predict whether the therapy will fail to shrink a patient's tumor.
Before determining
glucose uptake, all cell cultures were exposed to basal medium for 1 h. Cultures used for acute insulin stimulation were exposed for 1 h to high insulin
as described for GS assays.
In healthy humans, skeletal muscle accounts for 70 — 80 % of the insulin - stimulated
glucose uptake in vivo (23), and most of the
glucose is stored
as glycogen (24).
For example, mammalian insulin is secreted from pancreatic β - cells in response to high blood
glucose levels; insulin is then received by its receptor in the liver
as well
as in many other tissues to promote
glucose uptake and anabolism, thereby reducing blood sugar levels [1].
In cancer, elevated
glucose uptake and high glycolytic rate,
as source of ATP, constitute a growth advantage for tumors.
This is associated with modification of hypothalamic nitric oxide release that favors
glucose uptake in metabolic tissues such
as skeletal muscle, liver, and adipose tissue.
Besides bringing
glucose into all cells in the body, insulin also helps in the
uptake of amino acids into muscle tissue, which in turn initiates protein synthesis, and prevents amino acids from being oxidized
as a reserve fuel source.
Insulin signals body cells to
uptake glucose for energy, stimulates the formation of glycogen, and stimulates the conversion of
glucose to triglycerides to be stored
as fat.
Isoleucine can be seen
as the BCAA which mediates
glucose uptake (into a cell) and breakdown (into energy) to a larger degree than other amino acids and may serve a role
as a hypoglycemic (in diabetics) or
as a performance enhancer (if taken preworkout in a carbohydrate replete state).
Hence, the advent of sports drinks - fluids that contain electrolytes that your body needs,
as well
as glucose to continue fueling activity (and aid water / sodium
uptake).
One interesting fact here is that many compounds are co-transported, for example sodium can not be efficiently absorbed without some sugars (remember this),
as sodium
uptake is coupled with
glucose uptake, and absorption of both accelerates water
uptake (
as it forces water into the cells to buffer the two.)
It had long been believed that
glucose uptake in the brain was entirely independent of insulin,
as the common brain
glucose transporters — GLUT1 and GLUT3 — are non-insulin-sensitive.
However,
as is true of most biological mechanisms, context must be taken into account: acute administration of insulin improves performance on tests of memory and cognition, but chronically elevated insulin levels have the opposite effect.4, 42,43 This is akin to the pathology of T2D, in which normal, acute doses of insulin help regulate
glucose uptake, but chronically elevated levels lead to insulin resistance, hyperglycemia, and the attendant inflammation and vascular damage.
(iii) Regional brain
glucose uptake is impaired in AD and mild cognitive impairment (MCI), but brain
uptake of ketones (beta - hydroxybutyrate and acetoacetate), remains the same in AD and MCI
as in cognitively healthy age - matched controls.
Ongoing research also suggests that adding healthy fats and proteins, such
as peanut butter or olive oil, to meals with foods that have a high GI may slow the
uptake of
glucose, thus, lowering the food's GI.
Because they increase insulin sensitivity
as well
as glucose uptake, they are useful to lower the blood
glucose found in metabolic syndrome22.
It starts by improving insulin sensitivity in order to optimize postprandial
glucose uptake and,
as a consequence, minimize insulin signaling in the fasted state.
The Clamp method is recognized
as the gold standard method,
as it directly measures the body's
uptake of
glucose into tissue, but it is very expensive to perform.
RESULTS: In L6 muscle cells, short - term incubations (2 - 12 h) with 10 -LRB--3) m alpha - lipoic acid increased
glucose uptake by 40 - 80 %, approximately the same extent
as 10 -LRB--6) m insulin.
It increases the levels of neurotransmitters such
as dopamine and acetylcholine; it boosts the
uptake and use of
glucose in brain cells; and improves communication between brain cells.
Participation in large amounts of sedentary, or sitting, behaviors is associated with multiple health problems such
as impaired lipid profiles and
glucose uptake, greater energy intake and waist circumferences, and greater mortality risk [2 — 6].
Symptoms of insulin resistance include decreased stimulation of muscle glycogen synthesis
as well
as defects in glycogen synthase activity and
glucose uptake (18).