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Could a gut microbe influence muscle strength?

The trillions of microbes living in the human gut are increasingly recognized as important partners in human health. Scientists have linked the gut microbiome to several aspects of health, from metabolism and immunity to mental health.

A recent study suggests that these microbes may also influence an important aspect of fitness—muscle strength.

Muscle strength is a crucial feature of health for many reasons. It supports our joints and keeps our bones healthy, boosts athletic performance and even plays a role in metabolic health.

Webb Telescope spots “impossible” atmosphere on ancient super-Earth

A scorching “lava world” once thought barren may actually be wrapped in a thick, mysterious atmosphere. Astronomers have uncovered surprising evidence of a thick atmosphere surrounding TOI-561 b, a scorching, fast-orbiting rocky planet once thought too extreme to hold onto any gas. Using NASA’s James Webb Space Telescope, researchers found the planet is far cooler than expected for a bare rock, hinting at a heat-distributing atmosphere above a churning magma ocean. This strange world—where a year lasts just over 10 hours and one side is locked in eternal daylight—may even be rich in volatile materials, behaving like a “wet lava ball.”

A team of astronomers led by Carnegie has uncovered the clearest evidence yet that a rocky planet outside our Solar System has an atmosphere. Using NASA’s James Webb Space Telescope (JWST), the researchers identified signs of gas surrounding an unusual target: an ancient, extremely hot super Earth that likely has a surface covered by molten rock. The findings were published in The Astrophysical Journal Letters.

The planet, known as TOI-561 b, has about twice the mass of Earth but is dramatically different in almost every other way. It orbits extremely close to its star, at a distance just one fortieth that of Mercury from the Sun. Even though its star is slightly smaller and cooler than our Sun, the planet’s tight orbit means it completes a full year in only 10.56 hours. One side constantly faces the star, leaving it locked in permanent daylight.

Quantitative Measurement of Glycosylated ⍺-Dystroglycan as a Biomarker for Disease Severity in Limb-Girdle Muscular Dystrophy Type 2I/R9

Background and ObjectivesLimb-girdle muscular dystrophy type 2I (LGMD2I/R9) is caused by biallelic variants in the gene for Fukutin-related protein (FKRP), an enzyme required for proper glycosylation of α-dystroglycan (⍺DG), a critical structural protein…

The Power and Responsibility of Sam Altman

This week, Laurie Segall sits down exclusively with OpenAI CEO Sam Altman for his first interview since shutting down the Disney-partnered Sora and making the Department of War deal. From power to parenthood, tech addiction and AI acceleration, Laurie interviews Altman about AI’s human impact and the weight of OpenAI’s influence. In a wide ranging interview, Altman describes a near-term future where automated AI researchers could compress a decade of scientific discovery into a single year, fundamentally reshaping society and an era of AI abundance, where solo-founders can build billion-dollar companies with AI agents. But that innovation sits against a complex backdrop with fundamental human questions at stake. Altman addresses concerns over AI-related job loss and reveals what he thinks are AI-proof jobs. Altman, who is also a father, discusses parenting in the age of AI, when he plans to introduce his own product to his child, and how he believes AI could benefit kids in the long run. This is a conversation with Sam Altman you’re not going to hear anywhere else, where the tech titan answers some fundamental questions about control, innovation, consequences, and the world we’ll leave behind for our children.

If you have thoughts or questions for Laurie about this episode or anything Mostly Human, email us at [email protected]

Engineered Living Systems With Self‐Organizing Neural Networks: From Anatomy to Behavior and Gene Expression

Ectodermal tissue excised from Xenopus embryos self-organizes into a three-dimensional mucociliary organoid. Here, we generate a neural variant, termed neurobot, by implanting neural precursor cells…

Cuproptosis in cancer: emerging mechanism and therapeutic opportunities

Cuproptosis mechanism in cancer!

As a copper-dependent regulated form of cell death, cuproptosis is critically important for developing targeted cancer therapies and overcoming drug resistance.

A multidimensional framework deciphers the physiological regulation of copper homeostasis, including hepatocentric organ-level regulation, organelle-specific cellular storage and transport, and iron– copper–zinc ion crosstalk.

Cuproptosis is mainly regulated by core cuproptosis proteins, mitochondrial respiratory function, and cellular copper homeostasis.

By depleting glutathione (GSH), alleviating hypoxia, modulating immunity, and enabling multimodal synergy, innovative copper-based nanomaterials enhance copper ion delivery and cytotoxicity, resulting in potent antitumor effects. sciencenewshighlights ScienceMission https://sciencemission.com/Cuproptosis-in-cancer


Cuproptosis is a mitochondria-and copper-dependent regulated form of cell death that has attracted growing interest as a therapeutic strategy in oncology. Its core mechanism involves the aggregation of lipoylated proteins in the tricarboxylic acid cycle to trigger proteotoxic stress and the destabilization of iron–sulfur cluster proteins, leading to mitochondrial dysfunction. These two effects synergize to initiate this regulated form of cell death. Recent studies have expanded this framework, revealing multilayered regulation through the core proteins of cuproptosis, mitochondrial respiratory function, and cellular copper homeostasis. Translational efforts have led to the development of copper-based therapeutics, including ionophores and nanomaterials. The utilization of smart-responsive nanomaterials also offers improved precision in tumor delivery and resistance circumvention.

3 Billionaires Are (Quietly) Deciding Our Future

Max Tegmark explains why the race to superintelligence is not inevitable, why most people don’t want it, and what we can do about it. He covers the three superpowers of AI, why tool AI can solve our biggest problems without replacing us, and the case for regulating AI like we regulate drugs and airplanes.

00:00 The Race.
00:25 Superintelligence.
01:48 The cage.
03:03 Three superpowers.
05:16 Sandwiches.
11:14 Consciousness.
13:04 Life 3.

Produced by:
https://zeino.tv/

Specific Gravity Made Easy | Float, Sink & Hydrometer Explained

In this Easy Peasy Chemistry lesson, we break down Specific Gravity in a simple and clear way!

After learning about density, it’s time to understand how substances compare to water. Why do some objects float while others sink? What does a hydrometer reading like 1.25 actually mean?

In this video, you’ll learn:

• What specific gravity really means
• How it is different from density
• Why water is used as the reference
• How floating and sinking are related
• How a hydrometer measures specific gravity
• Why specific gravity has no units.

This lesson is perfect for high school, college, pre-med, nursing, and engineering students.

Watch till the end to fully understand how scientists measure and compare densities in the lab.

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