“The aging organism may also be viewed as a system with chemical fluctuations caused by biological reactions in the organism. This notion takes the whole organism as collected microscopically ordered patterns resembling oscillating chemical reactions.”
5 👍for correct author ID!
“In such reactions, the chemicals involved form a dissipative structure far from the equilibrium, which allowed the raw materials to be transformed to maintain as a certain self‐assembled biological structure that is ordered both spatially and temporally.....
However, it is harder to maintain such structures when the biological organization of an organism is constrained by its own biology and the genome evolution needed to maximize fitness, and is further impacted by age‐related changes...”
“diminishing the ability to effectively exchange and distribute substances and energy. Therefore, these spatially ordered biological structures collapse as the negative entropy flow cannot be effectively transferred from the environment into the organism...”
“Because the entropy of the system tends to increase, the organism must exchange substances with the environment to battle the increasing degree of disorder of the biological system over time, and it is increasingly unable to do so.”
I asked chat-GPT to help me write a tweet thread on how it can help accelerate progress in geroscience. Here’s what she came up with… 👇
/1
"Exciting news! #ChatGPT is being used to accelerate progress in the field of #geroscience. The ability to understand and generate human-like text allows for efficient data analysis and novel research opportunities. #AI#HealthTech
/2
"Did you know that #ChatGPT can assist scientists in the field of #geroscience with tasks such as data analysis and literature review? This technology has the potential to speed up discoveries and developments in the fight against age-related diseases. #AI#HealthTech
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This is just a hypothesis, needs testing: Severe mTORC2 inhibition is harmful (esp in males), but mild inhibition is ~neutral or possibly mildly beneficial in some settings (eg-cancer). This is a thread, keep clicking on msg to keep reading....
Problems w/ excess mTORC2 inhibition was mostly shown under:
1)Genetic⬇️eg, full/partial KO 2) Strong NON-rapamycin inhibition, eg RNA interference 3) non-WT or genetic eg murine models 4) HFD or kcal overfeeding 5) High rapa dosing➡️⬆️lipids,insulin,gluc, or other lab issues
@Blagosklonny The following is for educational purposes only, and not medical advice. @Blagosklonny is a pioneer in rapamycin research & was the first to propose it has the potential to extend life based on its mechanism of action (keep reading, this discussion & calculations are stacked)..🧑🔬
@Blagosklonny his prediction was subsequently confirmed in Saccharomyces (yeast), C elegans (nematode worms), Drosophila (fruit flies), mice, and others.
Rapamycin (sirolimus) has been used off-label for theorized healthspan and/or lifespan by such celebrities as @PeterAttiaMD...(keep reading)
@Blagosklonny@PeterAttiaMD You can see Dr. Blagosklonny practices what he preaches: 10 mg/week: bit.ly/349jlpM. The discussion that follows puts this in some respects very modest dose in perspective and provides a framework for thinking about dosing (more or less– in the 10-30+mg rapamycin range).
Science is tricky: “Of the four main signaling pathways implied to be linked to the impact of CR on lifespan ([IIS, NF-ĸB, mTOR & sirtuins])...the pathways except SIRT were altered in a manner consistent with increased lifespan.” (Cont.).... ncbi.nlm.nih.gov/pmc/articles/P…
...so to what extent does this reflect 1) role of sirtuins in CR (2)(-) extrapolation from C57BL/6 mice 3) assay sensitivity 4) experiment conditions 5) network complexity 6) “other”. This was a great study & trends>individual studies. Every💪 study ➡️ ⬆️ Q’s than A’s, to explore
Also “In our graded CR study, expression levels of mTORC1 and mTORC2 were both strongly negatively associated with the increase in CR.” Recall the latter is one concern for regular rapamycin (⬆️glucose,⬆️lipids.... but not always and not in case of CR)....
“Our findings suggest that MR feeding can reverse the negative effects of aging on body mass, adiposity, and insulin resistance through an FGF21 mechanism. These findings implicate MR dietary intervention as a viable therapy for age‐induced metabolic syndrome in adult humans.”
“This could explain the increased lifespan of mice when MR diet was begun at 12 months of age (Sun et al., 2009). In addition, like MR, FGF21 treatment extends lifespan in mice.... and FGF21 could be the basis of the mechanism behind MR's effects...”