https://www.nature.com/articles/s41586-021-04091-0
Summary
The human microbiome encodes a big repertoire of biochemical enzymes and pathways, most of which stay uncharacterized. Right here, utilizing a metagenomics-based search technique, we found that bacterial members of the human intestine and oral microbiome encode enzymes that selectively phosphorylate a clinically used antidiabetic drug, acarbose1,2, leading to its inactivation. Acarbose is an inhibitor of each human and bacterial α-glucosidases3, limiting the flexibility of the goal organism to metabolize advanced carbohydrates. Utilizing biochemical assays, X-ray crystallography and metagenomic analyses, we present that microbiome-derived acarbose kinases are particular for acarbose, present their harbouring organism with a protecting benefit towards the exercise of acarbose, and are widespread within the microbiomes of western and non-western human populations. These outcomes present an instance of widespread microbiome resistance to a non-antibiotic drug, and recommend that acarbose resistance has disseminated within the human microbiome as a defensive technique towards a possible endogenous producer of a carefully associated molecule.
However micro-biome resistance is just not actually the identical because the physique creating a resistance to acarbose (and your assertion that subsequently it has diminishing results). I’ve not observed any diminishing results in my yr of acarbose use (periodically) with regard to blood sugar peak rise. However will proceed to look at for it.
Anybody else discover something associated to doable acarbose “resistance” in your use of it?
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Will attempt chewing Acarbose and watch FBS! Thanks for the tip.
I will need to have presumed “diminishing results.” I do consider I made that leap based mostly on the primary quote in daring, “…leading to its inactivation.”
Thanks for digging out the summary. It’s not clear to me how the impact of microbiome resistance to Acarbose impacts mice or people taking it.
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What issues is the underside line. Does it lengthen lifespan? Do you suppose the mice trials had been lengthy sufficient to see the consequences of adjusting their intestine microbiome?
Agree. Have you learnt if the mice had been getting Acarbose all through the day or with every feeding prefer it’s advisable to individuals?
Within the NIA ITP trials the compound (rapamycin, acarbose, and so forth.) is often included within the meals, I consider. So that they get it as a proportion of their meals (e.g. 44 elements per million of drug to whole quantity of meals).
We examined two doses of acarbose in two distinct food plan backgrounds, the HS food plan which mimics a low-fat Western-style food plan comprised of host-accessible processed corn starch and the PP food plan replete with plant polysaccharides and pure fiber sources that embody resistant starch. The low dose of acarbose, examined solely within the HS background, didn’t lead to a major change locally construction from that of the management food plan missing acarbose. Nevertheless, the high-acarbose food plan modified the neighborhood within the HS food plan background with an enormous enhance within the Bacteroidaceae and the Bifidobacteriaceae , which in each circumstances, was largely attributed to will increase in single OTUs. There was an almost concomitant lower within the abundances of each the Verrucomicrobiaceae , primarily, A. muciniphila , and the Bacteroidales S24-7 with the excessive acarbose within the HS background. Acarbose elicited totally different adjustments when administered in a PP food plan, most notably, a leap within the Lachnospiraceae from 10% to 30% of the neighborhood with acarbose, and a putting lower in Bacteroidales S24-7. For each diets with acarbose, the abundances of Bifidobacteriaceae and Bacteroidales S24-7 had been fairly comparable. Acarbose administration enhanced Bifidobacteriaceae illustration in each circumstances, whereas it decreased S24-7 in each diets.
So… does acarbose produce stronger ends in amylose/amylopectin or sucrose? Are its differential peak-glucose-lowering results on high-sucrose meals virtually as essential as its results on high-amylose meals?
Sucrase exists to interrupt down sucrose – does acarbose even work on high-sucrose meals like mangoes?
Acarbose is a aggressive inhibitor of intestinal alpha-glucosidases with most particular inhibitory exercise towards sucrase. Beneath the affect of Acarbose, the digestion of starch and sucrose into absorbable monosaccharides within the small gut is dose-dependently delayed
However does acarbose even WORK on high-raffinose meals?
- RFOs produce flatulence in people
- 71 and animals because of the lack of an α-galactosidase enzyme
Do you are taking acarbose? In that case, you inform us. You’ll be able to take your acarbose then eat the beans you want and inform us the glucose spike you observe.
Should you don’t take, acarbose then maybe another person on the discussion board can do the experiment.
Excessive-raffinose meals might not want acarbose (they’re NATURALLY slow-digesting meals)
Have a look at my current thread
Can anybody repeat the optimum dosing protocol? How a lot?.How usually? Thanks. Enthusiastic about shopping for some.
It is available in three dosings: 25mg, 50mg and 100mg. You’re taking the remedy with the primary chunk of the meal (usually the next starch meal, however there may be debate on this).
You need to chew the pill, not simply swallow it, for greatest outcomes. I discovered 50mg and 100mg to be efficient, I’d skip the 25mg pill measurement.
Some individuals take 200mg (as Bryon Johnson does), and I’ve heard some individuals take 300mg. Monitor your blood glucose ranges after consuming (ideally with a CGM, however finger prick technique additionally tremendous) to see how your physique reacts to the acarbose.
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Is there any proof that acarbose lowers baseline (e.g. fasting) blood glucose? Or solely useful for decrease postprandial spikes / AUC?
I do know it lowers HbA1c in some trials, however that might be completely resulting from decreasing PPBG, not essentially baseline.
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I’ve learn via this complete thread (134 posts as of this writing) and simply wished to verify I perceive this (doubtless easy) idea: acarbose appears solely helpful if somebody eat carbs? or are there different mechanisms? — I personally have been “keto” for 1.75 years and misplaced important weight, all my blood/well being metrics have improved and are largely nice, have gained muscle, do each weights and 100 flights of stairs most days, and really feel f@&$%#Ing terrific and youthful vitality (I’m 52) so I’m unlikely to vary close to time period. (By “keto” I imply very low carb however with a lot of greens and wholesome meats and different protein, plus 18-hour fasts 1.5 meal a day “intermittent fasting”, and each six weeks or so I do a four-day water/espresso/tea fasts.) i studied it for six months to psyche myself as much as change this in my way of life eternally, and wanted to persuade my group of medical doctors to permit me to do it as I’ve one kidney (eGFR 89 a couple of weeks in the past so I feel the one is working fairly rattling nicely at 52). I perceive “keto”/low-carb doesn’t have the medical trials for longevity behind it, and among the prime researchers recommend low protein content material and in addition plant protein, however I’d quite have a strong layer of lean muscle in every single place in order I age past my 50s I’ve freedom of motion and vitality, and it is rather anti-cancer.
I don’t use dietary supplements usually however added GlyNAC lately (3g glycine in my morning espresso with 50g NACET), and take 4000 models of vitamin D, though from a current analysis paper displaying no distinction between minoxidil and rosemary I’ve simply began making an attempt a rosemary water spray for the beginnings of male sample baldness over six months — I’ll replace the group in a submit both method, however no outcomes doubtless for 3-4 months a minimum of. I’m on this web site as a result of I plan to attempt Rapamycin each topically and orally (I’m contemplating pulsed each two weeks maybe as excessive finally as 2g each two weeks, on 2 months, off 1 months) however I have to psyche myself up and ensure I’m doing the fitting factor for my well being. I’m of the idea much less interventions must be extra, as a result of drug uncomfortable side effects will be worse than the advantages. I’m additionally contemplating making an attempt carnivore throughout the “off” months to construct much more muscle/bone density (I perceive that is unpopular right here but it surely appears to work nicely for me).
Oh: I ought to point out I’ve a masters in Chemistry and labored in a fellowship for a biochem lab for 3 years (DNA replication proteins) and work often with biotech firms, though its not my day by day focus. My level is I learn the analysis on to make my conclusions, and tremendously respect this neighborhood for highlighting new analysis I haven’t seen.
Anyway, I apologize for the ridiculously lengthy one-sentence query, however could be excited by something that might meaningfully impression my well being, and it feels like acarbose might be that IF I wasn’t low carb. Thanks.
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We don’t know with any certainty the tactic of actions for Acarbose with regard to the longevity impact. We now have the speculation from Richard Miller at U. Penn/NIA ITP that its the decrease submit prandial glucose ranges (from carbs) however that may be a idea, see additionally the thread on Canagliflozin: Canagliflozin – One other Prime Anti-aging Drug
If the longevity impact is because of decrease submit prandial BG ranges then it appears to recommend that Keto practitioners would get no further profit, however precise mouse medical research confirming this haven’t, to my information, been executed.
I’m not a chemist, and never a health care provider, simply an “tech man” so take my feedback with a grain of salt, I can solely refer you to some sources. I like to recommend you additionally learn these threads:
Right here: (IMPORTANT) SGLT inhibitors are usually not an alternative choice to Acarbose
Right here: Mixture of Rapamycin, Acarbose, and SGLT-2 inhibitor
Right here: Canagliflozin for Anti-aging (half 2)
Right here: Canagliflozin vs Acarbose/Metformin for Anti-ageing
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