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Astronomers catch massive galaxy assembling piece by piece 1.2 billion years after Big Bang

Astronomers have discovered a remarkably tiny group of six young galaxies just 1.2 billion years after the Big Bang. This may be a rare glimpse of how some of the universe’s largest galaxies formed. The paper outlining the findings was submitted to the arXiv preprint server on July 13.

Chaotic patches The widely accepted cosmological model of the universe known as the Lambda Cold Dark Matter Model suggests that galaxies primarily form hierarchically through mergers. That means they grow piece by piece, as smaller galaxies merge over billions of years. In this context, dense regions in the early universe serve as natural laboratories to test this idea.

These dense patches, known as protoclusters and proto-groups, are young clusters of galaxies packed into a region just tens of thousands of light-years across and represent an especially brief and extreme stage in galaxy evolution. Spotting them requires telescopes sensitive enough to detect faint, low-mass galaxies at extreme distances, and precise enough to confirm that the galaxies are truly bound together.

Injectable biomaterial harnesses the immune system to promote brain repair after a stroke

Biomedical engineers at Duke University have developed an injectable biomaterial that helps transform the cavity left behind after a stroke caused by a blood clot into an environment more supportive of repair. By recruiting the body’s own immune cells, the treatment promoted the growth of new blood vessels, supported neural remodeling and improved motor performance in mice. The work appears in Cell Biomaterials.

Every year, millions of people experience strokes caused by blood clots, called ischemic strokes. Immediate treatments, including clot-dissolving drugs and mechanical removal of the clot, can restore blood flow and preserve threatened brain tissue. But these treatments cannot replace tissue that has already been lost.

Large strokes can result in substantial tissue loss and leave behind a cavity at the site of the injury. After the clot is removed, recovery relies largely on rehabilitation, which helps surviving brain circuits adapt but does not directly repair the damaged area.

Telomere-to-telomere brown rat genome could sharpen disease research models

Researchers have created the most complete genetic profile of the brown rat to date, according to a UTHealth Houston-led team, paving the way for scientists to more accurately investigate genetic links to conditions like heart disease, kidney disease, high blood pressure and stroke.

The research, published in Cell Genomics, was led by corresponding author Peter Doris, Ph.D., director of the Center for Human Genetics at The Brown Foundation Institute of Molecular Medicine within McGovern Medical School at UTHealth Houston.

The assembly of the brown rat’s genome provides a complete genetic fingerprint and reveals that the brown rat’s DNA is more complex than scientists previously understood. In addition to uncovering more than 60 new genes, many of which were previously difficult to sequence and are thought to play a role in immunity and other biological processes, the team discovered that brown rat sex chromosomes differ significantly from those in humans.

What if The Brain Doesn’t Create Consciousness? Scientist Proposes It Might Be The Fabric of Reality Itself

For decades, neuroscientists have searched the brain for the biological basis of consciousness, assuming our thoughts, emotions, and subjective experiences emerge from networks of neurons.

But what if that assumption is incomplete?

That’s the provocative question explored by neuroscientist Christof Koch of the Allen Institute in Seattle.

A jar of honey sealed inside an Egyptian tomb around 1000 BCE was opened by archaeologists in the 20th century and found still edible

Sealed honey from ancient Egyptian burial contexts is reported to remain edible after millennia — a claim whose specific instances are hard to source, but whose underlying chemistry, driven by low water content, acidic pH and bee-made hydrogen peroxide, is real and well-documented.

Two solar farms in Minnesota restored wildflowers, grasses and have population of bees, butterflies, wasps; scientists call it evidence of… — The Times of India

Two solar farms in Minnesota were built on retired agricultural land, and instead of the gravel or mown turf that usually goes under panels, the ground was seeded with native wildflowers and prairie grasses. Researchers from Argonne National Laboratory came back to the same test plots for five years and counted what flew and crawled past them.

Reversing Cellular Age: The Scientist Who Helped Create iPS Cells Reveals What’s Next

For most of human history, scientists believed that once a cell became a skin cell, a neuron, or a heart cell, that identity was permanent. Then a group of researchers discovered something extraordinary: cells could be reset. My guest today was there when that discovery happened.

Dr. Koji Tanabe, Ph.D. is Founder and CEO of I Peace (https://ipeace.com/en/), one of the world’s leading companies advancing induced pluripotent stem cell — or iPSC — technology from the research laboratory into scalable clinical manufacturing.

Dr. Tanabe occupies a truly unique place in modern biomedical history. He earned his Ph.D. in the laboratory of Nobel Laureate Dr. Shinya Yamanaka at Kyoto University and was the second author on the landmark scientific paper that first demonstrated the successful creation of human induced pluripotent stem cells — a discovery that fundamentally changed regenerative medicine and ultimately earned Dr. Yamanaka the 2012 Nobel Prize.

After helping establish one of the most important technologies in modern biology, Dr. Tanabe continued his work at Stanford University in the laboratory of Dr. Marius Wernig, a pioneer of direct cellular reprogramming, where he investigated how mature blood cells can be directly converted into neurons and explored the molecular mechanisms that govern cellular identity.

In 2015, Dr. Tanabe founded I Peace with an ambitious vision: to make clinical-grade iPS cells accessible at industrial scale. Today, the company has developed automated GMP manufacturing platforms capable of producing personalized and clinical-grade iPS cells for researchers, pharmaceutical companies, and regenerative medicine programs around the world.

On the episode we’ll explore how far the field has come since those first groundbreaking experiments nearly two decades ago, where regenerative medicine stands today, the growing role of iPS cells in drug discovery and transplantation, the excitement surrounding in vivo reprogramming and partial cellular rejuvenation, and what may ultimately become possible when every individual has access to their own personalized stem cell bank.

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