If bloodstream infusion of butyrate is as effective as absorption of butyrate in the intestines in protecting colon cells from degradation, then it seems reasonable to hypothesise that β -
hydroxybutyrate in the bloodstream would also have this effect.
In other words — lower β -
hydroxybutyrate in the blood might be an indication that you've become a more efficient fat burner.
I also control beta -
hydroxybutyrate in blood.
Sometimes it gives similar values to the strips of acetone in urine and
the hydroxybutyrate in blood, but it is more frequent to malfunction.
If you are sticking long enough to a ketogenic diet the production of the different types of keton bodies will change: the serum and urine volume of acetoacetate (the only ketone detected by ketostix) is significantly reduced, according to Phinney and Volek, you will have more
Hydroxybutyrate in your serum - and thereby in your urine.
In a carbon isotope study, feeding the ketone beta -
hydroxybutyrate in place of glucose caused less glutamate to be formed in the brain:
Not exact matches
If the lack of insulin is not noticed or treated
in time, people with type 1 diabetes can die from ketoacidosis — metabolic shock resulting from an excess of beta -
hydroxybutyrate.
In doing so, the liver produces beta -
hydroxybutyrate, an acid which supplies the muscles and brain with energy via the bloodstream.
Eric Verdin's lab published a fascinating paper
in Science on β -
hydroxybutyrate, a metabolite produced during fasting and exercise.
(C) Fasting plasma levels of 3 -
hydroxybutyrate (3 - HB)
in mutant mice treated for 4 weeks with control or ApoC - III ASO (n = 3 — 9 / group).
Ketones are
in the specific forms acetoacetate, acetone, and beta -
hydroxybutyrate.
It's interesting to see that the B -
hydroxybutyrate levels
in the ketogenic group only reached a mean of 0.722 mmol / L at the 3rd week and 0.333 mmol / L at week 6.
In humans, acute (measured after one to two ER - days) 33, 37, 48 and post-treatment 41, 48 increases in ketone bodies including Î ² - hydroxybutyrate have been reported in individuals undergoing IER (75 - 100 % ER on restricted days
In humans, acute (measured after one to two ER - days) 33, 37, 48 and post-treatment 41, 48 increases
in ketone bodies including Î ² - hydroxybutyrate have been reported in individuals undergoing IER (75 - 100 % ER on restricted days
in ketone bodies including Î ² -
hydroxybutyrate have been reported
in individuals undergoing IER (75 - 100 % ER on restricted days
in individuals undergoing IER (75 - 100 % ER on restricted days).
Studies
in rodents have additionally described post-treatment elevations in the rate of fatty acid oxidation within both the liver and skeletal muscle of mice maintained on IER (100 % ER / alternate days).13 In a comparison of CER (40 % ER / day) and IER (100 % ER / alternate days), the authors of this 20 - week study noted a doubling in the Î ² - hydroxybutyrate levels (a marker of mitochondrial fatty acid oxidation) in IER - fed mice which was not present in the CER group.15 Both IER and CER interventions led to comparable reductions in fasting levels of glucose and insuli
in rodents have additionally described post-treatment elevations
in the rate of fatty acid oxidation within both the liver and skeletal muscle of mice maintained on IER (100 % ER / alternate days).13 In a comparison of CER (40 % ER / day) and IER (100 % ER / alternate days), the authors of this 20 - week study noted a doubling in the Î ² - hydroxybutyrate levels (a marker of mitochondrial fatty acid oxidation) in IER - fed mice which was not present in the CER group.15 Both IER and CER interventions led to comparable reductions in fasting levels of glucose and insuli
in the rate of fatty acid oxidation within both the liver and skeletal muscle of mice maintained on IER (100 % ER / alternate days).13
In a comparison of CER (40 % ER / day) and IER (100 % ER / alternate days), the authors of this 20 - week study noted a doubling in the Î ² - hydroxybutyrate levels (a marker of mitochondrial fatty acid oxidation) in IER - fed mice which was not present in the CER group.15 Both IER and CER interventions led to comparable reductions in fasting levels of glucose and insuli
In a comparison of CER (40 % ER / day) and IER (100 % ER / alternate days), the authors of this 20 - week study noted a doubling
in the Î ² - hydroxybutyrate levels (a marker of mitochondrial fatty acid oxidation) in IER - fed mice which was not present in the CER group.15 Both IER and CER interventions led to comparable reductions in fasting levels of glucose and insuli
in the Î ² -
hydroxybutyrate levels (a marker of mitochondrial fatty acid oxidation)
in IER - fed mice which was not present in the CER group.15 Both IER and CER interventions led to comparable reductions in fasting levels of glucose and insuli
in IER - fed mice which was not present
in the CER group.15 Both IER and CER interventions led to comparable reductions in fasting levels of glucose and insuli
in the CER group.15 Both IER and CER interventions led to comparable reductions
in fasting levels of glucose and insuli
in fasting levels of glucose and insulin.
Stephen D. Phinney, M.D., Ph.D., author of The Art and Science of Low - Carbohydrate Living, has speculated that the ketone beta -
hydroxybutyrate — which your body will produce when you remove carbs from your diet — replaces the need for vitamin C, at least
in part.
The breath meters are really measuring the acetone
in the breath and then the blood is measuring the beta -
hydroxybutyrate --
So if you have extra beta -
hydroxybutyrate coming
in at that point, unless you are planning on doing a very intense hybrid mix of anaerobic and aerobic activity, I don't see a whole lot of benefit, especially if you're already showing a lot of acetoacetate.
I mean, if you look at what's
in there, there are these phenolic compounds that aren't your typical beta -
hydroxybutyrate whether it's calcium or sodium beta -
hydroxybutyrate salts.
Researchers at the Yale School of Medicine conducted a study on mice
in 2015 and found that beta -
hydroxybutyrate (BHB) produced by fasting inhibits NLRP3, the set of proteins known as the inflammasome.
The three types of ketones — acetone, beta -
hydroxybutyrate and acetoacetate — can be measured
in your breath, blood or urine.
By inhibiting lipolysis with niacin, acipimox, or beta -
hydroxybutyrate, the body is forced to rely more heavily on glycogen and this is reflected
in higher plasma lactate.
Burning fatty acids
in the Krebs cycle (the furnace of the mitochondria where the conversion of ATP happens) creates ketone bodies, some of which, like beta -
hydroxybutyrate can produce 25 % more energy.
These ketones are created
in the liver
in a roughly equal ratio (Note: Technically, acetoacetate is created by the mitochondria of liver cells, and from this beta -
hydroxybutyrate is created and acetate is produced as a side product.
A study
in mice administered exogenous ketones
in the way of beta -
hydroxybutyrate (BHB) for 7 days (3).
In a study involving dietary ketosis via a low carbohydrate diet (less than 10 percent of total calories), compared to subjects on a 50 percent carbohydrate diet, the low - carbohydrate subjects demonstrated better performance on memory tests, with higher scores being correlated to higher serum KB levels.14 A study using cultured mouse hippocampal cells showed that addition of the KB β - hydroxybutyrate (β - OHB) to cells exposed to Aβ resulted in no decrease in the numbers of dendrites or total neurons — two of the noted pathological changes in A
In a study involving dietary ketosis via a low carbohydrate diet (less than 10 percent of total calories), compared to subjects on a 50 percent carbohydrate diet, the low - carbohydrate subjects demonstrated better performance on memory tests, with higher scores being correlated to higher serum KB levels.14 A study using cultured mouse hippocampal cells showed that addition of the KB β -
hydroxybutyrate (β - OHB) to cells exposed to Aβ resulted
in no decrease in the numbers of dendrites or total neurons — two of the noted pathological changes in A
in no decrease
in the numbers of dendrites or total neurons — two of the noted pathological changes in A
in the numbers of dendrites or total neurons — two of the noted pathological changes
in A
in AD.
(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.
Availability of neurotransmitter glutamate is diminished when beta -
hydroxybutyrate replaces glucose
in cultured neurons.
The amount of (13) C incorporation and cellular content was lower for glutamate and higher for aspartate
in the presence of [2,4 -(13) C] beta -
hydroxybutyrate as opposed to [1,6 -(13) C] glucose.
This can be a fuel that we consume,
in the form of supplements (like medium chain triglycerides, or purer versions like beta -
hydroxybutyrate).
Do you have an objection to using a tablespoon of, well,
in my case I would use straight CAMCT because this is the stuff that goes most quickly into beta -
hydroxybutyrate and then into coenzyme A and then ATP.
Uptake of ketones into the brain is directly proportional to the blood concentration of beta -
hydroxybutyrate (βOHB) and acetoacetate: the higher the ketones, the more the brain will take them
in.
It is rich
in medium chain triglycerides and the brain superfuel known as beta -
hydroxybutyrate.
Beta
Hydroxybutyrate levels
in the body can be increased
in ways other than just the full - scale ketogenic diet.
[1] An additional check on cholesterol synthesis
in the fasting state is the activation of AMPK by the ketone body B -
hydroxybutyrate.
Unlike longer chain common fatty acids, MCFA are not stored
in adult adipose tissue, but rather, preferentially converted
in the liver, to the ketone bodies (KBs) beta -
hydroxybutyrate (BHB; technically not a KB because it does not have a keto molecular group) and acetoacetate (AcAc).
MCT digestion, mobilization, metabolism, and conversion to ketone bodies: Unlike longer chain common fatty acids, MCFA are not stored
in adult adipose tissue, but rather, preferentially converted
in the liver, to the ketone bodies (KBs) beta -
hydroxybutyrate (BHB; technically not a KB because it does not have a keto molecular group) and acetoacetate (AcAc).
As the list above suggests beta -
hydroxybutyrate is made
in our bodies by converting acetoacetate
in the absence of carbohydrates and glucose.
I work
in a laboratory, and was able to measure my blood levels of the ketone body, beta -
hydroxybutyrate (BHB)(derived from C8 MCT after metabolic conversions
in the body).
It measures your ketone levels by calculating the amount of beta -
hydroxybutyrate (BHB)
in your blood.
Supplementing with both beta -
hydroxybutyrate and MCTs has been shown to effectively raise levels of ketones
in the blood without the need for dietary change (22).
In several studies, supplementing with ketone salts resulted in beta - hydroxybutyrate levels of less than 1 mmol / L, while taking ketone esters raised blood beta - hydroxybutyrate concentrations to 3 to 5 mmol / L (26, 27, 28
In several studies, supplementing with ketone salts resulted
in beta - hydroxybutyrate levels of less than 1 mmol / L, while taking ketone esters raised blood beta - hydroxybutyrate concentrations to 3 to 5 mmol / L (26, 27, 28
in beta -
hydroxybutyrate levels of less than 1 mmol / L, while taking ketone esters raised blood beta -
hydroxybutyrate concentrations to 3 to 5 mmol / L (26, 27, 28).
Two longer - term studies,
in persons without diabetes, that measured fasting blood β -
hydroxybutyrate concentrations over 10 wk found that, whereas the concentrations increased over the first 2 — 4 wk, they then decreased and, after 10 — 12 wk, remained only slightly higher than those of dieters following other diets (21, 23).
Myokines from exercising muscles have a part
in this (Philips et al., 2014), so does beta -
hydroxybutyrate (eg, Sleiman et al., 2016 and Marosi et al., 2016).
Muscles and other tissues progressively switch energy source from glucose to free fatty acids which are converted to ketone bodies (acetoacetate and b -
hydroxybutyrate); these become the primary energy substrate for brain and other metabolically active tissues
in the absence of adequate glucose supply.
They hypothesized that elevated β -
hydroxybutyrate concentrations may have played a minor role
in preventing catabolism of lean tissue but other anabolic hormones were likely involved (e.g., growth hormone).
A study done
in 2004 took MCTs from coconut oil and put them into a drink that was given to Alzheimer's patients while a control group took a placebo.5 They observed significant increases
in levels of the ketone body beta -
hydroxybutyrate (beta - OHB) 90 minutes after treatment when cognitive tests were administered.
It is interesting to note that the KBs are able to produce more energy compared with glucose because of the metabolic effects of ketosis — the high chemical potential of 3 - β -
hydroxybutyrate leads to an increase
in the ΔG0 of ATP hydrolysis.3 A further point to underline is, as shown
in Table 1, that glycaemia, even though reduced, remains within physiological levels because of the fact that glucose is formed from two sources: from glucogenic amino acids and from glycerol liberated via lysis from triglycerides.7
The same argument has been made about glucose
in the brain, and we all know that the brain actually needs only a very small amount of glucose, if β -
hydroxybutyrate is
in good supply.
Why this is relevant with respect to the ketogenic diet is because beta -
hydroxybutyrate is one of the ketones produced when somebody is
in ketosis.
The study, Effects of beta -
hydroxybutyrate on cognition
in memory - impaired adults, dates back to 2003.