Showing posts with label DNA. Show all posts
Showing posts with label DNA. Show all posts

Thursday, June 25, 2026

Researchers found all five bases of DNA and RNA in samples from the asteroid Ryugu.




“A coloured view of 162173 Ryugu taken by JAXA’s space probe Hayabusa2 in 2018. Credit: JAXA/Hayabusa2 (ScitechDaily, Scientists Just Found All 5 Genetic “Letters” of DNA and RNA on an Asteroid)

"162173 Ryugu (provisional designation 1999 JU3) is a near-Earth object and also a potentially hazardous asteroid of the Apollo group. It measures approximately 900 metres (3,000 ft) in diameter and is a dark object of the rare spectral type Cb, with qualities of both a C-type asteroid and a B-type asteroid. In June 2018, the Japanese spacecraft Hayabusa2 arrived at the asteroid. After making measurements and taking samples, Hayabusa2 left Ryugu for Earth in November 2019 and returned the sample capsule. To Earth. On 5 December 2020. The samples. Showed the presence of organic compounds, such as uracil (one of the four components in RNA) and vitamin B3." (Wikipedia, 162173 Ryugu)

This thing supports the model. Those life-building blocks are coming from space. And they formed DNA and RNA molecules in the Earth's chemical environment. Those bases, or letters on the asteroid Ryugu (162173 Ryugu), cause interesting thoughts. About things like. Could there have been some other habitable planet in our solar system’s past? 

There is suspicion that Mars has a habitable past. But could there be some ancient? A habitable planet that was destroyed in violent impacts?  The hypothetical protoplanet Theia formed the Moon when it impacted Earth. Nobody can prove the existence of that thing. Because Theia was destroyed in that impact. 

The meteorite that reseachers found in the Sahara. Tells about the ancient planet. That was destroyed in the young solar system. The craters on icy moons remind us. About. The chaotic past. In the solar system. Those icy worlds hide evidence. Of violent impacts. The fact is that those base pairs are things. 

That can form the impacts of the planets. Or protoplanets. The origin of Ruygu could be another asteroid. The best candidates are 495 Eulalia. And 142 Polana. But the induction question is: what is the origin of the 495 Eulalia and 142 Polana?  Have they been part of some larger mass? And do those two distant asteroids in Jupiter's trajectory also carry those DNA and RNA building blocks? 


“How the five nucleobases make up RNA and DNA. Credit: Wikimedia Commons” (ScitechDaily, Scientists Just Found All 5 Genetic “Letters” of DNA and RNA on an Asteroid)

“In the Tholen classification scheme, Polana is a primitive carbonaceous asteroid of type F, which is a subdivision of the more common C-type. Under the SMASS classification taxonomy, Polana is listed as a B-type asteroid, a group that combines both the Tholen B and F types. The spectrum of this object suggests the presence of magnetite (Fe3O4), which gives it the spectrally blue coloration that is a characteristic of this SMASS class” (Wikipedia, 142 Polana) 




(Wikipedia, 162173 Ryugu)

“495 Eulalia is a minor planet, specifically an asteroid orbiting in the asteroid belt. Eulalia is very near the 3:1 Jupiter orbital resonance. It is possible that the disruption of Eulalia's parent body resulted in a mass bombardment of the Earth and Moon 800 million years ago, forming the Copernicus crater on the Moon and involving about 50 times. The amount of material of the Chicxulub impact on Earth at the beginning of the Cryogenian geological period. (Wikipedia, 496 Eulalia)




“Microscope images of Ryugu samples collected from the first and second touchdown sites of the Hayabusa2 mission. Credit: JAXA/JAMSTEC” (ScitechDaily, Scientists Just Found All 5 Genetic “Letters” of DNA and RNA on an Asteroid)





“Ryugu sample in its return capsule. Credit: JAXA”(ScitechDaily, Scientists Just Found All 5 Genetic “Letters” of DNA and RNA on an Asteroid)

The relation of the gravity. Between Jupiter and the inner solar system, objects could rip Ryugy away from the asteroid's main body. 

The shape of Ryugu is interesting. It looks a little bit like a cube. At least from the angle. There, the photo is taken. This is one of the things that makes these kinds of objects interesting. They can store the ancient genetic building blocks. And in the most exciting model, the Ryugu is part of the ancient planet or protoplanet. 

Some kind of protoplanet impacted Earth.  A long time ago. And that impact caused the Moon to separate from Earth. The DNA and RNA building blocks from the asteroid are always interesting things. There is also a small possibility that those building blocks of RNA and DNA are also coming from Earth. This thing can support ideas.  Maybe Earth can deliver some kind of lifeforms to Venus. Those lifeforms could be like the Anthrax bacteria. 

That could take the spore form. And maybe some of those bacteria can stay alive. And flow in Venus’s clouds. In some other models. Tiny viruses from ancient planets could travel between stars. Those genome packs could keep their form in absolute zero degrees Kelvin. 

Maybe. The supernova, or nova explosion. Or some impact could destroy the entire star. And throw those genomes around the universe. But nobody is sure. About the origin of that genetic material, before more samples are collected from the asteroid belt. The interesting information. It  could be. Is there more genetic information frozen in asteroids? Than just those bases that the reseachers found from Ruygu samples. But if Ryugu is the only asteroid that carries these DNA and RNA building blocks. That is also an interesting possibility. 


https://knowridge.com/2026/06/rare-sahara-meteorite-uncovers-a-hidden-planet-from-the-early-solar-system/


https://scitechdaily.com/scientists-just-found-all-5-genetic-letters-of-dna-and-rna-on-an-asteroid/


https://en.wikipedia.org/wiki/142_Polana


https://en.wikipedia.org/wiki/162173_Ryugu


https://en.wikipedia.org/wiki/495_Eulalia


https://en.wikipedia.org/wiki/Asteroid_spectral_types


https://en.wikipedia.org/wiki/Theia_(hypothetical_planet)


https://en.wikipedia.org/wiki/Origin_of_the_Moon

Sunday, January 22, 2023

Why modern anti-aging treatment has a limited effect on aging?



DNA and aging. 


Anti-aging treatments are useless because they are not affecting the DNA itself. The aging in biological organisms means that the DNA will not transfer to the next generation of cells. When cells divide, the DNA will not copy to the next generation perfectly. And also, things like chemical and electromagnetic stress causes damage to the DNA. If we want to stop aging we must deny the damage to the DNA. 

When cells are operating as part of the organism. Cells metabolism causes waste starts to accumulate in the cells. And that causes damage to the DNA. Also, electromagnetic stress causes oscillation in the DNA molecule. That oscillation breaks chemical bonds in the molecule. And that is the reason why interstellar spaceflight is so difficult. 

The researchers must deny the damage to the DNA. And that is one problem. If the astronauts will put in normal narcosis, that thing denies the social problems. But it does not affect aging. In some models, the astronauts will be frozen in liquid nitrogen or helium. But the problem is how to wake them up. 

DNA damage causes things like cancer. The enzyme that protects human cells against viruses helps tumors to evolute. Cancer is one of the results of damage to DNA. Cancer cells are very close to stem cells. And in some visions genetically engineered cancer cells can use to create organs for people. 

The idea is that genetically engineered cancer cells create cell mass. And then, the virus transferred to those cells and turns them into the wanted cells. In some visions, the researchers will put DNA at the end of the tumor cell's DNA. And then they would turn to wanted cells. 


Image 2: Grrenland shark


In some visions. The DNA of every person's stem cells will be stored in laboratories. And then those stem cells will be cloned if the person requires stem cells. That guarantees that every person has stem cells if that person needs them. 

The thing. What makes so-called living fossils interesting is that. They can comply with environmental changes. This ability means that those fossils can live in extreme conditions. Of course, things like their environment can affect that ability. If the species lives in deep seas. That means their environment is stable. But in the cases of aging the interesting creatures are things like turtles that live in the same environment as we are living. 

One of the most interesting creatures in aging research is the Greenland shark. No other vertebrate animal can live so long time as the Greenland shark. That shark can live over 500 years. 

When we are trying to clone things like stem cells or understand them, we must find the species. That has a certain ability. Then, researchers must find the DNA sequence of a DNA code. That controls this wanted ability. If researchers want to slow aging, they must find species. That has an extremely long lifetime. Then, they must research the environment where that creature lives. 

That eliminates the environmental effect. If the long life is the result of the environment. That means the DNA is useless. And after that, they must find the DNA sequence that involves the code that guarantees a long lifetime. This is why things like turtles and certain sharks called Greenland sharks are interesting. 


https://scitechdaily.com/cancers-secret-weapon-enzyme-that-protects-against-viruses-may-fuel-tumor-evolution/


https://scitechdaily.com/not-effective-popular-anti-aging-treatments-shown-to-have-a-limited-impact-on-aging/


https://scitechdaily.com/one-step-closer-to-artificial-organs-living-fossil-provides-new-insight/


https://en.wikipedia.org/wiki/Greenland_shark


Image 1: https://scitechdaily.com/not-effective-popular-anti-aging-treatments-shown-to-have-a-limited-impact-on-aging/


Image 2: https://news.fullerton.edu/2020/08/greenland-shark-research/


https://likeinterstellartravelingandfuturism.blogspot.com/

Friday, December 16, 2022

DNA and slowing aging.



There is no junk DNA. 


The breakthroughs are helping to map human genomes. And that thing makes people possible to live longer and be wealthier. The human genomes are problematic for science because our cells do not read all DNA sequences all the time. And the sequences that read rarely involve the most critical information. 

Those rarely used DNA sequences involving data that is vital for advancing the neural systems. Without those sequences, people would not have a brain. In the past, people thought that the DNA involve information about the advance of the neural system was junk DNA. But today, we know that cells read those sequences very rarely. 


Genetic engineering allows for stopping aging. 


Today some medicals are slowing aging. Those chemicals clean the body from the zombie cells. But the problem is how to detect those zombie cells. 

The term "zombie cell" means overaged cells. Those cells did their job, but they have not destroyed themselves as they should have. When the cell read its entire DNA. That means it should die because its program ended. In those cases, the programmed cell death is somehow disturbed. 

But there is one problem. The core antigens of those cells are similar to regular cells.  How can chemicals destroy those zombie cells that are the person's cells? 


There are three ways to make that thing:


1) Chemicals can destroy those zombie cells themselves. 

2) Or those chemicals can mark zombie cells for the immune system. 


3) The Third version requires genetic engineering. In that version, researchers can connect DNA bites to the point behind the cell's programmed self-destruction. 


The purpose of that DNA bite is to turn the cell's core antigens that make immune defense destroy them immediately. That kind of thing can help to clean the body from zombie cells. Or the cell that turns overaged can start to create antigens that T-cells use to mark the tissue and cells that immune defense must destroy. 

The point where the cell will start to make descendants can time by changing the point of the DNA sequence that controls those things. In some of the most impressive possibilities, the point of the cell's cleavage can happen earlier. 

In that model, the cell starts cleavage earlier. Because that genome is transferred earlier in the DNA. 

And that means the DNA that will transfer to the next generation would be more intact than otherwise. The idea is that the DNA sequence that controls the cleavage process will turn earlier in the DNA. 

But there is one thing that can be a reality sooner than we think. There is a possibility to use microchipped macrophages to clean the zombie cells out of the body. 


https://scitechdaily.com/anti-aging-medicines-seek-to-eliminate-zombie-cells-but-could-this-be-dangerous/


https://scitechdaily.com/so-called-junk-dna-genetic-dark-matter-is-actually-critical-to-survival-in-mammals/


https://scitechdaily.com/what-makes-us-human-the-answer-may-be-found-in-overlooked-junk-dna/


https://en.wikipedia.org/wiki/T_cell



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