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Scientists manage to ‘revive’ circulation and cell function in dead pigs



Scientists manage to 'revive' circulation and cell function in dead pigs

The scientists were able to reactivate circulation and other cellular functions in the bodies of pigs that had died shortly before. gives hope for future use in medicine, although it raises ethical questions.

In 2019, a group of American researchers surprised the scientific community by successfully restoring cellular function in the brains of pigs hours after they were decapitated.

In your latest investigation published on Wednesday in the journal Naturethese same scientists sought to extend this technique to the entire body of the animal.

Scientists have caused a heart attack in anesthetized pigs, which led to the cessation of blood flow and oxygen starvation of their cells. Without oxygen, mammalian cells die.

An hour later, the researchers injected the cadavers with a liquid containing pig blood (taken while alive) and a synthetic form of hemoglobin, the oxygen-carrying protein in red blood cells.

They also injected drugs that protect cells and prevent blood clots.

Blood began to flow again and many cells began to work again, including vital organs such as the heart, liver and kidneys, within the next six hours.

“These cells were running a few hours later than they should have been. This shows that the disappearance of cells can be stopped,” said Nenad Sestan, lead author of the study and researcher at Yale University.

Under the microscope, it was difficult to distinguish between a normal, healthy organ and a post-mortem organ, added study co-author David Andrievich, also of Yale University.

BUT the team hopes this method, called OrganEx, can be used to “save organs” by extending their function..

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This method has the potential to save lives for people awaiting transplants.

Anders Sandberg of the University of Oxford said OrganEx could also allow new forms of surgery that give “more medical leeway.” However, this technique raises a number of medical, ethical and even philosophical questions.

Among the doubts is the increased risk that resuscitated people will not be able to get out of a life-supporting state,” Brendan Parent, a bioethicist at New York University’s Grossman School of Medicine, warned in a commentary published in parallel by the journal. .

For Sam Parnia of the same university’s medical school, this “really remarkable” study also shows that “death is a treatable and reversible biological process after a few hours.”

Ultimately, the medical definition of death may need to be updated, says Benjamin Curtis, an ethical philosopher at Nottingham Trent University in the UK.

“In the light of this study, many processes that we thought were irreversible turned out to be so,” he told Agence France-Presse (AFP).

“And according to the current medical definition of death, a person may not be dead for several hours,” he added. This finding may also raise debate about the ethics of such procedures. Moreover, almost all the pigs made strong head and neck movements during the experiment, according to Stephen Latham, one of the authors of the study.

“It was quite unexpected for the people in the room,” the scientist admitted in an interview with reporters.

The origin of these movements remains unknown, but the researcher assures that electrical activity has never been recorded in the brain of animals, which excludes the restoration of consciousness.

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Nonetheless, head movements are a ‘serious problem’said Benjamin Curtis because recent research in neuroscience has shown that “conscious experience can continue even if the electrical activity of the brain cannot be measured”.

“It is possible that this technique causes suffering to pigs and can cause suffering to people. if they are used in them,” he stressed, calling for more research into this technique.

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‘My power is really low’: NASA’s Mars Insight rover prepares to launch from the Red Planet



NASA Lander InSight He has delivered what may be his last message from Mars as he embarks on a historic mission to uncover the secrets of the Red Planet’s interior.

In November, the space agency warned that the probe could be running out of time as dust continued to condense and stifle InSight’s power.

“Spacecraft power generation continues to decline as windblown dust accumulates on solar panels,” NASA said in a statement. Update November 2. “The end is expected to come in the coming weeks.”

message shared NASA The InSight Twitter account tweeted on Monday: “My power is very low so this might be the last photo I can upload. Don’t worry about me: my time here has been productive and uneventful. If I can keep talking to my mission team, I will—but I will.” Subscribe here soon. Thank you for staying with me.”

My power is very low, so this might be the last photo I can upload. But don’t worry about me: my time here has been productive and uneventful. If I can keep talking to my mission team, I will, but I’ll sign here soon. Thank you for staying with me.

— NASA InSight (@NASAInSight) December 19, 2022

A geologist robot armed with a hammer and a seismograph first reached the barren expanse of Elysium Planitia in November 2018.

Since then, she has carried out geological excavations, taking the first measurements of earthquakes with a high-tech seismometer placed right on the surface of Mars.

Last month, the solar-powered car released an update to remind us of its time in space.

“I was lucky to live on two planets. Four years ago I made it safely to the second one, much to the joy of my family at first. Thanks to my team for taking me on this journey of discovery. I hope I can be proud of you.”

According to the published mission, Insight has measured more than 1,300 seismic events since it was published, and more than 50 of them had signals clear enough for the team to extract information about their location on Mars. Results.

The probe’s data also provided detailed information about Mars’ interior, liquid core, surprisingly variable remnants beneath the surface of an extinct magnetic field, climate and seismic activity.

old for Its launch in 2018NASA Chief Scientist Jim Green said the mission was “fundamental to understanding the origins of our solar system and how it became what it is today.”

NASA will not declare the mission complete until Insight confirms the arrival of two spacecraft orbiting Mars that are relaying their information back to Earth.

In 2018, the veteran rover announced the capabilities end of his 15 year stay Sending an incomplete photo of the Valley of Perseverance.

A severe dust storm darkened the sky around the solar-powered rover, shattering the sun and leaving behind a dark image with white spots due to camera noise. The transmission is interrupted before the complete image can be transmitted.

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What’s new on February 7, 2023



OnePlus 11 5G Buds Pro 2 evento

Being very close companies, OPPO and OnePlus have decided to create a new partnership, with the latter being a pioneer in the market. It has become the representative of the best smartphones in the group, and this will be seen very soon.

Proving this, OnePlus has announced that it will have news soon. The following brand assets will be announced on February 7, 2023. We are talking about OnePlus 11 5G and Buds Pro 2.

In recent years, OnePlus has been showcasing new hardware in an attempt to find a new place in the market. The brand has not always seen its full potential, betting on mid-range or entry-level smartphones.

The situation is changing, and the novelty will go on sale in early 2023, February 7. It is on this day that the new OnePlus 11 5G will be presented with all the expected news. We definitely have the new Qualcomm Snapdragon 8 Gen 2 SoC here. There's still 16GB of storage left and 256GB of onboard storage.

OnePlus 11 5G Buds Pro 2 events

It is expected that he will receive a 6.7-inch OLED display with a resolution of 1440p and a frequency of 120 Hz. In the field of photography, we will have an important change: a 50 MP main camera, a 48 MP ultra wide-angle camera and a 32 MP telephoto lens with 2x zoom. For selfies and video calls, you'll have a 16-megapixel camera.

The photography partnership with Hasselblad will continue with OnePlus for fine-tuning and some additions. This alliance has brought important results for the best smartphones of the brand, guaranteeing the best photos in any situation.

OnePlus 11 5G Buds Pro 2 events

In addition to the new OnePlus 11 5G, another brand new feature is also expected to arrive at the event. We're talking about the Buds Pro 2, which are solidifying an audio commitment that's becoming more of a reality. The brand promises "rich stereo quality sound with crystal clear clarity".

Stays like this marked by the beginning of February, another important novelty will enter the market. OnePlus wants to reclaim its place, and that will be the brand's bet for years to come. OnePlus 11 5G and Buds Pro 2 take the first step in this direction.

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New POCO Smartphone Seen in Certification May Debut Soon



New POCO Smartphone Seen in Certification May Debut Soon

According to information provided by Mukul Sharma, the unidentified POCO device can be identified by the model number 22127PC95I. Due to the fact that it was first seen online, the marketing name of this equipment is still a mystery.

POCO has not launched new mobile devices, including smartphones, to the market for some time now. On the other hand, several POCO smartphones such as POKO X5 and X5 Pro have been spotted on various certification sites, suggesting that the company will release these products soon. Today a new smartphone from the sub-brand xiaomi has been spotted on the BIS India website but the device does not have a name or any other details associated with it.

According to information provided by Mukul Sharma, the unidentified POCO device can be identified by the model number 22127PC95I. Due to the fact that it was first seen online, the marketing name of this equipment is still a mystery. It is possible that it will debut as a mid-range smartphone. The Bureau of Indian Standards (BIS) website, other than the model number of the smartphone, does not provide any additional information about the device. However, this seems to indicate that the product will be available in the Indian market very soon.

In other related news, POCO X5 5G has recently been seen on several certification sites including SIRIM in Malaysia, BIS in India and the US FCC. According to various sources, it is possible that this is a renamed or modified version Redmi Note 12 5Gwhich was recently released in China.

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It is supposed to be equipped screen 6.67″ AMOLED display with 120Hz refresh rate and chipset Snapdragon 4 Gen 1 inside. Can run MIUI 13 based on android 12 and have LPDDR4x RAM in addition to UFS 2.2 storage. The front camera is rumored to be 8MP while the main rear camera will be 48MP with 2MP depth. May have the ability drums 5000 mAh and 33W fast charging support.

In addition POCO X5 Pro 5G has recently been seen on various sites dedicated to certification. The battery is said to have a capacity of 5000 mAh and can charge at 67W. It will come with MIUI 14 preinstalled and will support n5, n7, n38, n41, n77 and n78 network bands. 5G.

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