The studies on autophagy by Yoshinori Ohsumi, which earned him the Nobel Prize in Medicine in 2016, and the discovery of cell cycle regulatory genes for which Leland Hartwell, Timothy Hunt and Paul Nurse received the same award in 2001, including the research of Elizabeth Blackburn, Carol Greider and Jack Szostak on telomeres, telomerase and its protective effect on the chromosomes, were all made possible thanks to yeast.
Not exact matches
With a view to clinical
studies (tests
on humans) it is important to note that the effects
on the tumor vasculature were even observed at chloroquine concentrations that had little effect
on autophagy in the cancer cells.
In their newly published
study, the researchers aimed to investigate the effect of blocking
autophagy on the infiltration of NK cells in melanoma.
On the
autophagy side of this complicated machinery, a key protein called LC3 was detected in the nucleus in earlier
studies.
Dr. Chu, who
studies autophagy, or «self - eating,» in Parkinson's disease, was seeking a change
on the mitochondrial surface that could signal to LC3 to bring in the damaged organelle for recycling.
For example, Cuervo's work
on enhancing
autophagy where we're waiting
on formal publication of mortality rate data, or enhanced uncoupling protein
studies that show median life span increases but not maximum life span increases.
We will
study how signaling mechanisms impact homeostasis in cell - free, cell - based, and organismal systems, with a particular focus
on the highly topical role of
autophagy in different processes and
studying autophagic mechanisms in depth.
Here, Cuervo happily remembers trying to avoid
studying lysosomes, running a lab by herself as a postdoc when her advisor went blind, and convincing her husband to write a grant
on autophagy with her.
Stress resistance has not been assessed however and so the biological relevance of this finding is currently unknown.32 Several IER trials (75 - 85 % ER
on restricted days) in overweight / obese populations have reported reductions in various markers of oxidative stress 37, 41, which in one study was accompanied by a complementary increase in the anti-oxidant uric acid.37 In a direct comparison of IER (75 % ER for two days / week) and CER, both ER strategies displayed equal efficacy in reducing levels of fast - acting advanced oxidation protein products (AOPP) after six months, which displayed a tendency to occur earlier (i.e. at three months) in the IER group.41 Levels of slow - acting (i.e. long term) AOPP tended to decrease in the IER group and increase in the CER group which the authors proposed may have resulted from IER - induced activation of autophagy, a key homeostatic cellular process in which dysfunctional or unnecessary cellular proteins are degraded and recycled.41 On the other hand, a follow - up study using similar IER / CER protocols demonstrated comparable reductions in AOPP in both groups after three months.48 Summary and Future Research Directio
on restricted days) in overweight / obese populations have reported reductions in various markers of oxidative stress 37, 41, which in one
study was accompanied by a complementary increase in the anti-oxidant uric acid.37 In a direct comparison of IER (75 % ER for two days / week) and CER, both ER strategies displayed equal efficacy in reducing levels of fast - acting advanced oxidation protein products (AOPP) after six months, which displayed a tendency to occur earlier (i.e. at three months) in the IER group.41 Levels of slow - acting (i.e. long term) AOPP tended to decrease in the IER group and increase in the CER group which the authors proposed may have resulted from IER - induced activation of
autophagy, a key homeostatic cellular process in which dysfunctional or unnecessary cellular proteins are degraded and recycled.41
On the other hand, a follow - up study using similar IER / CER protocols demonstrated comparable reductions in AOPP in both groups after three months.48 Summary and Future Research Directio
On the other hand, a follow - up
study using similar IER / CER protocols demonstrated comparable reductions in AOPP in both groups after three months.48 Summary and Future Research Directions
Studies on mutations of animals as varied as yeast, slime molds, plants and mice show that deletions of
autophagy related genes (ATG) in animals is largely incompatible with life.
Disclaimer: I'm relatively
autophagy - agnostic; not really confident racing to maximize it is a great thing based
on Human
Studies.
The animal
studies of
autophagy, based
on «chronic nutrition depletion,» more accurately reflect CR which results in decreased body weight or metabolic rate.
Also, in the few human
studies on it, weight loss (CR) but not fasting (IF) has been shown to induce
autophagy.